JP3129976B2 - Sediment treatment equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an earth and sand treatment facility for improving earth and sand in a sludge state such as excavated earth and sand so as to be transportable by a dump truck or the like.

[0002]

2. Description of the Related Art Conventionally, excavated earth and sand in a sludge state (sludge) or soil such as construction sludge and bottom mud dredged soil from a ground excavation site or the like is transported by a dump truck or the like, and is used as embankment or agricultural soil. In order to reuse the soil, sediment treatment for improving the properties of the earth and sand has been performed. As one example, a method of mixing calcined perlite with earth and sand in a sludge state to reduce the water content of the earth and sand has been implemented. Conventionally, calcined pearlite used when performing this earth and sand treatment method, when dismantling low-temperature tanks and the like, was supplied in a form that reused what was used as its cold insulator etc. Instead of reusing, a method is also used in which pearlite refined stone is fired to produce fired pearlite and used directly in earth and sand treatment.

[0003]

Conventionally, a pearlite sintering facility for sintering pearlite to produce sintering pearlite, and a pearlite / soil mixing facility for mixing sintering pearlite and earth and sand to produce improved soil are described. Each existed as a separate plant. But in this,
From the perlite baking equipment to the perlite and earth and sand mixing equipment, the expanded baking perlite had to be transported by dump trucks, etc., which was a cumbersome and costly operation. It is desired that the plant be constructed as a plant so that the fired pearlite can be smoothly and energy-savingly mixed with earth and sand, so that the earth and sand treatment can be smoothly and energy-savingly performed. However, the technology was not established.

In view of the above circumstances, an object of the present invention is to provide a sediment treatment facility capable of performing sediment treatment smoothly and energy-saving.

[0005]

That is, a first aspect of the present invention is a pearlite crushed stone receiving means (200) capable of accepting pearlite crushed stone (PS) and a pearlite crushed stone receiving means (200). Perlite quarry (P
S), a pearlite firing means (5) capable of generating fired pearlite (PL), and a fired pearlite (P) fired and generated by the pearlite firing means (5).
L) a pearlite transportation means (11) capable of transporting L) to the outside, and a pearlite firing facility having an exhaust portion (9a) capable of discharging exhaust gas (HG) generated by firing of the pearlite refined stone (PS) to the outside. (40), and the pearlite baking equipment (40) is provided with a pearlite / sand mixing facility (4).
1) is provided, and the perlite / sand mixing facility (41) is provided.
Is a baked pearlite receiving means (3) capable of accepting baked pearlite (PL) transported by the pearlite transporting means (11) of the pearlite firing equipment (40).
00), sediment receiving means (400) capable of receiving sludge in the form of sludge (KD), fired pearlite receiving means (300), and fired pearlite (PL) received by the sand and sand receiving means (400). A kneading and mixing means (15) capable of producing an improved soil (MD) by kneading and mixing KD), a heating means (15, 16) capable of heating the received earth and sand (KD), and the kneading and mixing An improved soil discharge means (22) capable of carrying out the improved soil (MD) generated by the mixing means (15) to the outside is provided. The exhaust part (9a) of the perlite baking equipment (40), The heating means (15, 1) of the earth and sand mixing equipment (41)
6) is connected by an exhaust gas transport means (23) in such a manner that the exhaust gas (HG) discharged from the exhaust section (9a) can be transported and supplied to the heating means (15, 16).

A second aspect of the present invention is a pearlite quarry receiving means (200) capable of accepting pearlite pearl (PS), and a pearlite lithium receiving means (200).
Pearlite baking means (5) capable of producing baked pearlite (PL) by baking pearlite refined stone (PS) received by the method described above, and baking pearlite (PL) produced by baking with the pearlite baking means (5) to the outside. Pearlite baking equipment (40) having pearlite transportation means (11) that can be transported to the pearlite baking equipment (40).
The pearlite / sand mixing facility (41) is provided in the pearlite / sand mixing facility (41). Flexible firing perlite receiving means (300) and sediment receiving means (400) capable of receiving sludge-state soil (KD)
And the calcined perlite (PL) received by the calcined perlite receiving means (300) and the sediment receiving means (400) and the sand (KD) are kneaded and mixed to improve the soil (M).
Kneading and mixing means (15) capable of producing D) and the improved soil (MD) generated by the kneading and mixing means (15)
And a perlite crushed stone receiving means (200) that receives the pearlite crushed stone (PS) and receives the pearlite crushed stone (PS).
Has a receiving and transporting device (3, 4) which can be transported to the pearlite firing means (5), and the fired pearlite receiving means (300) is provided with the received fired pearlite (P).
L) and a pearlite holding part (12) capable of holding the fired pearlite (PL) held in the pearlite holding part (12).
Perlite amount detection means (29, 30) capable of detecting 1)
And the pearlite amount detection means (29, 30)
Based on the amount (Q1) of calcined pearlite (PL) detected by the pearlite amount detecting means (29, 30), the amount (Q2) of calcined pearlite (PL) to be generated and supplied by the pearlite burning means (5) The pearlite supply amount calculation unit (31) for calculating the pearlite supply amount calculation unit (31) is provided in the pearlite supply amount calculation unit (31).
Transport amount control unit (3) for controlling the transport amount (V1) of pearlite pearlite (PS) to the pearlite baking means (5) by the receiving and transporting device (4) based on the amount (Q2) of the raw material.
2) is provided.

[0007] The numbers in parentheses and the like are for convenience of indicating corresponding elements in the drawings, and therefore, the present description is not limited to the description on the drawings. The same applies to the following “action” column.

[0008]

According to the first aspect of the present invention having the above-described structure, fired pearlite (PL) produced by firing at the pearlite firing equipment (40) side is used as the pearlite transport means (1).
According to 1), it is transported to the pearlite / sand mixing facility (41) side. Further, the exhaust gas (HG) is transported and supplied to the heating means (15, 16) via the exhaust gas transport means (23), so that the supplied exhaust gas (HG) is supplied to the heating means (15, 16). The earth and sand (KD) received by the pearlite / sand mixing facility (41) is heated by the heat energy of HG).

In the second aspect of the present invention, the fired pearlite (PL) produced by firing in the pearlite firing equipment (40) is supplied to the pearlite / sand mixing equipment (41) by the pearlite transport means (11). Transported to Further, the amount (Q1) of the fired pearlite (PL) held in the pearlite holding unit (12) is determined by the pearlite amount detection means (2).
9, 30), and based on the amount (Q1) of calcined pearlite (PL) detected thereby, the amount (Q2) of calcined pearlite (PL) to be generated and supplied by the pearlite calcining means (5) is: Perlite supply amount calculation unit (3
1), and the perlite supply amount calculation unit (3)
Based on the amount (Q2) of calcined pearlite (PL) to be generated and supplied calculated in 1), the receiving and conveying device (4)
The conveyance amount (V1) of the pearlite refined stone (PS) to the pearlite firing means (5) is controlled.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic view showing an example of the earth and sand mixing processing equipment according to the present invention, and FIG. 2 is a different type from the earth and sand mixing processing equipment of FIG. 1, showing the vicinity of the pearlite and earth and sand mixing equipment. FIG. 3 is a schematic side view, and FIG. 3 is a block diagram showing a control device in the earth and sand mixing processing equipment of FIG.

As shown in FIG. 1, the earth and sand mixing and processing equipment 1 receives perlite crushed stone PS transported by a dump truck or the like, for example, in the direction of arrow A in the figure, and temporarily detains it. And a conveyer 4 capable of taking out and transporting the perlite quarry PS placed in the stock site 2 (that is, a belt conveyor capable of performing transport operation). A first transport means 3 including a transport pipe or the like for receiving the pearlite crushed stone PS from the conveyor 4 and transporting the pearlite PS to the outside is provided. That is, the pearlite crushed stone PS is used for these conveyors 4
And by the first transport means 3 and can be transported to a firing device 5 described later. As described above, the stock yard 2, the conveyor 4, the first transportation means 3
, The perlite crushed stone PS can be received by the earth and sand mixing and processing equipment 1, and therefore, the stock yard 2,
The conveyor 4 and the first transporting means 3 constitute a perlite crushed stone receiving unit 200 capable of receiving the pearlite crushed stone PS.

At the other end of the first transport means 3 of the pearlite refined stone receiving unit 200, there is provided a predetermined sintering device 5 capable of sintering the pearlite refined PS to produce a baked pearlite PL. (The part surrounded by the two-dot chain line in FIG. 1), the baking apparatus 5 includes a raw material hopper unit 6, a baking furnace burner 7, a dust collector unit 9, and the like. That is, the raw material hopper unit 6 is capable of receiving the pearlite crushed stone PS transported and transported from the first transport means 3, and the pearlite crushed stone PS received by the raw material hopper unit 6 is appropriately transferred by the appropriate transfer means 6a. (Burning furnace burner 7 via belt conveyor, bucket elevator, etc.)
It can be put into. The firing furnace burner 7
The supplied pearlite PS is calcined by the fuel supplied from the predetermined fuel supply means 7a to produce calcined pearlite PL. The calcined pearlite PL is generated by the dust collector unit 9 ( (For example, a cyclone, a separator, a bag filter device, etc.) in the directions indicated by arrows C and D in FIG.

Further, the dust collector unit 9 of the firing apparatus 5 is provided with a second transport means 11 (for example, a transport pipe for transporting the fired pearlite PL) connected to the dust collector unit 9. Fired pearlite PL that has passed through the dust collector unit 9
But outside the firing device 5 via the second transport means 11,
For example, it can be transported in the direction of arrow E in the figure, etc. (Note that the second transport means 11 may be directly connected to the firing furnace burner 7, in which case the second transporting means 11 is generated by the firing furnace burner 7. The fired pearlite PL can be transported to the outside of the firing device 5 via the second transport means 11 as it is.) As described above, the pearlite sinter receiving unit 200, the sintering device 5, and the second transport means 11 constitute a pearlite sintering facility 40.

The pearlite firing equipment 40 is provided with a pearlite / earth and sand mixing equipment 41. Perlite
As shown in FIG. 1, the earth and sand mixing equipment 41 receives the fired pearlite PL transported by the second transport means 11 in a form connected to the other end of the second transport means 11 of the pearlite firing equipment 40. Has a stock tank 12 that can be held at
A predetermined pearlite supply means 13 (for example, a belt conveyor for taking out the baked pearlite PL, which can take out the baked pearlite PL held here and supply the baked pearlite PL to the outside, for example, in the direction of arrow F in the drawing, and the like, A transport pipe for transporting the fired perlite PL, a perlite receiving tank capable of receiving the transferred fired perlite PL and having a supply hopper formed at a lower end thereof, and a weight or volume of the fired perlite PL received in the perlite receiving tank. And a gas discharging means for discharging mixed gas mixed into the fired perlite PL from the perlite receiving tank).
As described above, the fired perlite receiving means 300 is constituted by the stock tank 12 and the perlite supply means 13.

The pearlite / sediment mixing equipment 41
It has a soil hopper 16 capable of receiving and receiving sludge excavated soil KD, and a soil weighing device 17 is provided below the soil hopper 16 in FIG. That is,
The excavated earth and sand KD put into the earth and sand hopper 16 can be put into the earth and sand meter 17 in a direction indicated by an arrow H in FIG. Earth and sand meter 17
Can measure the volume or weight of the excavated sediment KD placed therein, and selectively supply the introduced excavated sediment KD to the lower outside of FIG. 1, for example, in the direction of arrow J in the figure. It is possible to do. As described above, the earth and sand receiving means 400 is provided by the earth and sand hopper 16 and the earth and sand meter 17.
Is configured. Further, the perlite supply means 13
In the lower part of FIG. 1 and the lower part of the earth and sand measuring device 17 in FIG.
For example, fired perlite P supplied in the direction of arrow J in the figure
A kneading mixer device 15 is provided in such a manner that L can be received and the excavated earth KD supplied from the earth and sand measuring device 17 in the direction of arrow G in the drawing can be received.

Further, the perlite / sand mixing facility 41
It has peat moss supply means (not shown) capable of supplying peat moss PM (rotten moss), and a peat moss meter 19 is provided in a form capable of receiving peat moss PM from the peat moss supply means. That is, the peat moss measuring device 19 can measure the volume, weight, etc. of the peat moss PM put in the peat moss PM. To be supplied selectively. The mixing mixer 15 is located diagonally below the peat moss measuring device 19 in FIG.
M is supplied to the kneading mixer device 15. Further, the perlite / sediment mixing equipment 41 has calcium sulfate supply means (not shown) capable of supplying calcium sulfate RK, and the calcium sulfate measuring device 20 is configured to receive calcium sulfate RK from the calcium sulfate supply means. Is provided. That is, the calcium sulfate measuring device 20 can measure the volume, weight, and the like of the calcium sulfate RK charged therein. It can be supplied selectively in the M direction or the like. Note that the kneading mixer device 15 is located obliquely below the calcium sulfate measuring device 20 in FIG.
The calcium sulfate RK supplied obliquely downward from the calcium sulfate measuring device 20 is supplied to the kneading mixer device 15. Further, the perlite / sand mixing facility 41 has a perphosphate lime supply unit (not shown) capable of supplying perphosphate KS, and is capable of receiving perphosphate KS from the perphosphate lime supply unit. A superphosphate lime meter 21 is provided in the form. That is, the superphosphate weighing device 21 can measure the volume, weight, and the like of the superphosphate KS charged therein. It can be supplied selectively downward, for example, in the direction of arrow N in the figure. The kneading mixer device 15 is located obliquely below the superphosphate lime measuring device 21 in FIG.
Superphosphate KS supplied from the superphosphate weighing device 21 obliquely downward is supplied to the kneading mixer device 15.

The kneading mixer 15 can produce the improved soil MD by kneading and mixing the fired pearlite PL, excavated sand KD, calcium sulfate RK, and superphosphate KS KS which have been received. The improved soil MD obtained by kneading and mixing can be supplied from the kneading mixer device 15 to the outside, for example, in the direction of the arrow P in the figure. That is, in the vicinity of the kneading mixer device 15,
Improved soil M supplied to the outside from the kneading mixer device 15
An improved soil transport means 22 such as a belt conveyor capable of receiving and transporting D is provided, and a dump truck 50 can be arranged at the other end of the improved soil transport means 22.
That is, the improved soil MD transported by the improved soil transporting means 22 is transferred to the dump truck 5 in, for example, the direction of arrow Q in FIG.
It can be stacked on zero. The pearlite / sand mixing facility 41 is provided with the above-described fired pearlite receiving means 300.
And the soil receiving means 400 and the improved soil transporting means 22.

The earth and sand mixing equipment 1 has an exhaust gas supply pipe unit 23 as shown by a broken line in FIG. 1, and one end of the exhaust gas supply pipe unit 23 is connected to the dust collector of the baking apparatus 5. It is connected to the exhaust part 9a of the unit 9. That is, the exhaust part 9a is composed of a chimney or the like provided in a bag filter device or the like of the dust collector unit 9, and supplies the exhaust gas HG generated when the pearlite fine stone PS is fired by the firing device 5 to the exhaust gas. It can discharge and supply to the pipe unit 23 (note that
A predetermined exhaust blower or the like is provided in the bag filter device or the like, so that the exhaust gas HG can be smoothly discharged and sent from the bag filter device to each of the exhaust gas supply pipe units 23. ). Further, the other end side of each exhaust gas supply pipe unit 23 is branched into a plurality of branches, for example, two branches, and each branch destination is the kneading mixer device 15 and the earth and sand hopper 16.
And so on. That is, the exhaust gas HG, which is transported in, for example, the direction of arrow R in the figure, can be transported and supplied to the kneading mixer device 15 and the earth and sand hopper 16 by the respective exhaust gas supply pipe units 23.

Further, as shown in FIG. 1, the earth and sand mixing equipment 1 has a detection sensor 30 installed in the stock tank 12 of the fired perlite receiving means 300.
The detection sensor 30 detects that the fired pearlite PL held in the stock tank 12 has a predetermined height level LH1.
Can be detected. Further, the earth and sand mixing equipment 1 has a control device 26 as shown in FIGS. 1 and 3. Control device 2
6 has a main control unit 27, and the main control unit 27 includes:
The pearlite amount detector 29, the supply amount calculator 31, and the carry amount controller 32 are connected via a bus line. And
The pearlite amount detection unit 29 is connected to the detection sensor 30, and the transport amount control unit 32 is connected to the pearlite crushed stone receiving unit 200.
Is connected to the conveyor 4.

Since the earth and sand mixing equipment 1 is configured as described above, the earth and sand mixing equipment 1
Processing D results in: That is, first, the pearlite refined PS temporarily stored in the stock yard 2 is supplied to the sintering apparatus 5 via the conveyor 4 and the first transport means 3, and the supplied pearlite polished PS is calcined by the sintering apparatus 5. Then, fired pearlite PL is generated, and the generated fired pearlite PL is transported and supplied to the stock tank 12 via the second transport means 11. On the other hand, a work ST1 for inputting the material into the kneading mixer device 15, a kneading operation ST2 by the kneading mixer device 15, and a loading operation ST3 of loading the improved soil MD from the kneading mixer device 15 are performed in the work S.
A series of operations constituted by performing T1, ST2, and ST3 in this order is repeated.

That is, in the material input operation ST1, five materials, namely, fired perlite PL, excavated earth and sand KD, peat moss PM, calcium sulfate RK, and superphosphate KS KS are input into the kneading mixer device 15 in predetermined amounts. Work. In this case, the fired perlite PL, excavated earth K
D, peat moss PM, calcium sulfate RK, the proportion of charged amount of peracetic phosphate of lime KS, relative excavated soil KD of 1 m ^3, fired pearlite PL of 0.1 to 5 m ^3, 0.1 to
0.5 m ³ of peat moss PM, 1 to 10 kg of calcium sulfate RK, and 1 to 5 kg of lime superphosphate KS (these values are merely examples, and the present invention is not limited to these values). That is, the calcined pearlite PL is measured by the pearlite supply means 13 and is supplied to the kneading mixer device 15 by a predetermined amount corresponding to the above-described ratio, and the excavated earth and sand KD is measured by the earth and sand meter 17. The peat moss PM is put into the kneading mixer device 15 by a predetermined amount corresponding to the above-described ratio, and the peat moss PM is measured by the peat moss measuring device 19 to the kneading mixer device 15 by the predetermined amount corresponding to the above-described ratio. The calcium sulfate RK is metered by the calcium sulfate meter 20, and is charged to the kneading mixer device 15 by a predetermined amount corresponding to the above-mentioned ratio, and the lime superphosphate KS is measured by the lime superphosphate meter. In the form weighed by 21,
A predetermined amount corresponding to the above ratio is supplied to the kneading mixer device 15.

After the material input operation ST1 of the five materials is completed, a kneading operation ST2 is performed. This is performed in such a manner that the materials supplied to the kneading mixer 15 are kneaded and mixed by the operation of the kneading mixer 15. This kneading work S
By T2, the fired perlite PL, excavated earth KD, peat moss PM,
Calcium sulfate RK and superphosphate lime KS are kneaded and mixed to form an improved soil MD. (Note that peat moss PM utilizes effective bacteria to prevent rooting of plants and the like, and calcium sulfate RK reduces salt content. And lime superphosphate KS has the effect of lowering the pH.) After the kneading operation ST2 is completed, the unloading operation ST3 is performed. That is, the improved soil MD generated in the kneading mixer device 15 is transferred to the improved soil transport means 22.
And loaded on the dump truck 50. The improved soil MD loaded on the dump truck 50 has a reduced water content compared to the excavated soil KD and has improved properties, so that the improved soil MD can be easily transported by the dump truck 50 (as an example). If the water content is reduced to about 85%, the mountain does not collapse when transported by the dump truck 50.) By repeating a series of operations including the operations ST1, ST2, and ST3, the excavated earth and sand KD to be discharged is sequentially set as the improved soil MD, and is easily loaded and transported by the dump truck 50. As described above, in the earth and sand mixing equipment 1 of the present embodiment, the fired pearlite PL generated by firing on the pearlite firing equipment 40 side is transported to the pearlite and earth and sand mixing equipment 41 side by the second transport means 11, so that the volume is increased. There is no need to transport the expanded perlite PL with a dump truck or the like, so that the earth and sand processing operation can be performed smoothly and at low cost, that is, energy can be saved.

The improved soil MD is more convenient because it can be used as a soil for growing plants. That is, it can be used as agricultural soil, horticultural soil, and soil for greening, in addition to backfill soil and embankment material. By conducting a preliminary survey of the excavated earth and sand generated, auxiliary materials can be added according to the purpose of the improved soil, and it is possible to respond to the purpose of use. In addition, in this embodiment, not only a sufficient effect can be obtained with respect to the strength of the improved soil MD, but also the improvement of soil permeability, the improvement of air permeability, and the improvement of water retention due to the fired perlite.
Physical improvement such as prevention of caking can be expected. Furthermore, there is no change in pH or the like as compared with other soil improvement materials. Even soft clay, silt, which is normally discarded, has accumulated over a long period of time and has benefited from nature. According to the processing method of the present embodiment, the blessings of nature can be sufficiently brought out. Further, in the treatment method of this embodiment, since no chemical reaction is expected, the improvement effect appears immediately and is convenient. In addition, it can be used with any kind of soil and is economical.

On the other hand, in the earth and sand mixing processing equipment 1 of the present embodiment, the following operation is performed while performing the above-described operation for generating the fired pearlite PL and the operation for generating the improved soil MD. That is, the pearlite crushed stone PS in the firing device 5
Exhaust gas HG generated when baking is transported and supplied to the kneading mixer device 15 and the earth and sand hopper 16 via the exhaust gas supply pipe unit 23. Then, the inside of the kneading mixer device 15 and the inside of the earth and sand hopper 16 are heated by the supplied exhaust gas HG. As a result, the inside of the kneading mixer device 15 and the inside of the earth and sand hopper 16 are heated. The excavated earth and sand KD is heated. That is, the excavated soil KD is heated by the thermal energy of the exhaust gas HG, the evaporation of water in the excavated soil KD is promoted, the water content of the excavated soil KD further decreases, and the improved soil M
D can be generated effectively.

Further, in the earth and sand mixing processing equipment 1 of the present embodiment, the following operation is performed. That is, the amount Q1 of the fired pearlite PL received and held in the stock tank 12 is larger than the amount per unit time of supply to the kneading mixer device 15 per unit time. The detection sensor 30 installed in the stock tank 12 transmits a predetermined detection signal to the pearlite amount detection unit 29 of the control device 26 when it increases and exceeds the predetermined height level LH1. Upon receiving the predetermined detection signal, the pearlite amount detection unit 29 determines, based on the detection signal, that the fired pearlite PL of the stock tank 12 is held in an amount Q1 exceeding a predetermined height level LH1. The amount Q1 is transmitted to the supply amount calculation unit 31 via the main control unit 27. The supply amount calculator 31 calculates the amount Q2 of the fired pearlite PL to be generated and supplied by the firing device 5 based on the transmitted amount Q1. That is, since the fired pearlite PL in the stock tank 12 is held in an amount Q1 exceeding the predetermined height level LH1, the fired pearlite PL should be generated and supplied by the firing device 5 so as not to supply the fired pearlite PL to the stock tank 12. The amount Q2 of the fired pearlite PL is calculated as, for example, 0. The amount Q2 of the baked pearlite PL to be generated and supplied calculated by the supply amount calculating unit 31 is transmitted to the transport amount control unit 32, and the transport amount control unit 32 performs the baking apparatus by the conveyor 4 based on the transmitted amount Q2. The transport amount V1 of the pearlite fine stone PS to the fifth side is controlled. In this case, since the quantity Q2 is 0, the operation of the conveyor 4 is stopped, and the transport of the pearlite crushed stone PS is stopped. As a result, the generation of the fired perlite PL by the firing device 5 is stopped, and the supply of the fired perlite PL to the stock tank 12 is stopped. That is, the amount Q1 of the fired pearlite PL in the stock tank 12 does not significantly exceed the predetermined height level LH1 and is not excessively held.

Further, since the supply of the fired pearlite PL to the stock tank 12 has been stopped, the amount Q1 of the fired pearlite PL held in the stock tank 12 is smaller than the supply amount per unit time to the kneading mixer device 15. Also,
When the detection sensor 30 installed in the stock tank 12 is reduced to fall below the predetermined height level LH1 (because the amount received into the stock tank 12 per unit time is small), the predetermined detection signal is detected. Is stopped, the pearlite amount detector 29 that does not receive the detection signal determines that only the amount Q1 of the fired pearlite PL of the stock tank 12 below the predetermined height level LH1 is held, and this amount is determined. Q1 is the main control unit 27
Is transmitted to the supply amount calculation unit 31 via the. Supply amount calculation unit 3
In 1, the baking apparatus 5 based on the transmitted quantity Q1
Calculates the amount Q2 of the fired pearlite PL to be generated and supplied. That is, the fired pearlite P in the stock tank 12
Since only the amount Q1 in which L is lower than the predetermined height level LH1 is held, the amount Q2 of the baked pearlite PL to be generated and supplied by the sintering device 5 is set so that the baked pearlite PL is supplied to the stock tank 12. calculate.
The amount Q2 of the baked pearlite PL to be generated and supplied calculated by the supply amount calculating unit 31 is transmitted to the transport amount control unit 32, and the transport amount control unit 32 performs the baking apparatus by the conveyor 4 based on the transmitted amount Q2. Pearlite quarry P to 5 side
The transport amount V1 of S is controlled. In this case, since the amount Q2 is not 0, the operation of the conveyor 4 is restarted, and the transport of the pearlite crushed stone PS is restarted. As a result, generation of the fired pearlite PL by the firing device 5 is resumed, and the stock tank 1
The supply of the fired pearlite PL to 2 is restarted. That is, the fired pearlite PL in the stock tank 12 does not run short and does not hinder a smooth earth and sand treatment operation.

As described above, an excessive amount of the fired pearlite PL is not generated and supplied with respect to the amount of the excavated soil KD, so that the size of the stock tank 12 can be reduced as much as possible. In particular, since the volume of the fired pearlite PL expands as compared with the pearlite crushed stone PS before firing, there is a problem that the place for stocking the fired pearlite PL becomes large. However, in this embodiment, the fired pearlite P
Since the size of the stock tank 12 for storing L can be made as small as possible, the above-described problem is solved.
Therefore, effective use of space is realized. Further, since excessive generation of the fired pearlite PL is prevented, waste in the earth and sand treatment work is eliminated, and energy saving is realized.

As another embodiment, as shown in FIG. 2, the lift unit 60 is located adjacent to the earth and sand hopper 16.
May be provided. The lift unit 60 has a horizontal floor plate member 61 on which the dump truck 50 and the like can ride, which can be vertically driven up and down by an appropriate lifting mechanism employing hydraulic pressure or the like. The operation is performed between the level of the ground on which the dump truck 50 and the like travels and the level corresponding to the upper end of the earth and sand hopper 16, that is, the site of the excavated earth and sand KD. Therefore, the dump truck 50 that has traveled by lowering the floor plate member 61 can be loaded as shown by the two-dot chain line in FIG. 2. As shown, the dump truck 50 can be arranged near the upper end of the earth and sand hopper 16. That is,
At this raised position, the dump truck 50 is driven by the excavated soil KD.
Can easily be put into the earth and sand hopper 16. In this case, the number of operators required for inputting excavated earth and sand and loading improved soil can be reduced, so that labor saving can be realized and is convenient. In addition, there is an energy saving effect because the improved soil can be loaded on the dump truck that has transported the excavated earth and sand and transported.

Incidentally, as another embodiment different from the above-described embodiment, one having no exhaust gas supply pipe unit 23 is also possible. Further, as still another embodiment, a sensor without the detection sensor 30 and the control device 26 is also possible. Further, the treatment of the excavated soil KD, that is, the reduction of the water content ratio is effective as long as the fired pearlite PL is mixed with the excavated soil KD.
That is, transportation by a dump truck or the like becomes easy, or reuse as embankment or agricultural soil becomes possible. However, as in the above-described embodiment, in addition to the fired pearlite PL,
It is more effective to mix calcium sulfate RK and lime superphosphate KS.

The pearlite amount detecting means which is a component of the present invention is a detecting sensor 3 in the above-described embodiment.
Although it is configured to have 0, the pearlite amount detecting means may be configured in any manner as long as the amount of fired pearlite held in the pearlite holding unit such as the stock tank 12 can be detected. For example, instead of the detection sensor 30, a weighing scale capable of detecting the weight of the fired pearlite held in the stock tank 12 may be used.

The heating means which is a component of the present invention is the kneading mixer device 15 and the earth and sand hopper 16 in the above-described embodiment (that is, the kneading mixer device 15 is mixed with the heating means). The earth and sand hopper 16 also serves as a heating means and a part of the earth and sand receiving means).
Any configuration may be used as long as it can heat the excavated earth and sand KD accepted by the mine. For example, between the sediment receiving means 400 and the kneading mixer device 15, the excavated sediment KD
May be provided, and a heat exchange device connected to the exhaust gas supply pipe unit 23 may be installed in the transportation means.

[0032]

As described above, the first aspect of the present invention relates to a pearlite crushed stone receiving means such as a pearlite crushed stone receiving unit 200 capable of accepting pearlite crushed stone such as pearlite crushed stone PS, and the pearlite crushed stone. A pearlite baking means such as a baking apparatus 5 capable of generating a baked pearlite such as a baked pearlite PL by baking the pearlite crushed stone received by the pearlite receiving means, and a baked pearlite generated by baking by the pearlite baking means to the outside. Transportable second
A pearlite transporting means such as the transporting means 11 and a pearlite sintering apparatus 40 and the like having an exhaust part such as an exhaust part 9a capable of exhausting an exhaust gas such as an exhaust gas HG generated by sintering the pearlite spar. Have equipment,
The perlite / soil mixing equipment 4
A perlite / sediment mixing facility, such as a perlite / sediment mixing facility, wherein the perlite / sediment mixing facility is a permeated perlite receiving means such as a permeated perlite receiving means 300 capable of accepting the permeated perlite transported by the perlite transport means of the perlite baking equipment. And earth and sand receiving means such as earth and sand receiving means 400 capable of receiving sludge in the sludge state such as excavated earth and sand KD, and the fired perlite receiving means and the fired perlite received by the earth and sand receiving means are kneaded and mixed for improvement. Kneading and mixing means such as a kneading mixer device 15 capable of freely producing improved soil such as soil MD, a kneading mixer device 15 capable of heating the received earth and sand, and a sand hopper 16
And the like, and an improved soil carrying means such as an improved soil transporting means 22 capable of carrying out the improved soil generated by the kneading / mixing means to the outside. Since the heating means of the earth and sand mixing equipment is connected to the heating means by an exhaust gas transport means such as the exhaust gas supply pipe unit 23 in such a manner that the exhaust gas discharged from the exhaust part can be transported and supplied to the heating means. Since the fired pearlite produced by firing on the pearlite firing equipment side is transported to the pearlite / earth and sand mixing equipment side by the pearlite transportation means, there is no need to transport the expanded baked pearlite by a dump truck or the like, and accordingly, ,
Sediment processing can be performed smoothly and at low cost, that is, energy saving. In addition to this, in the present invention, the thermal energy of the exhaust gas generated by the firing of the pearlite spar is effectively used. That is, the exhaust gas is transported and supplied to the heating means via the exhaust gas transport means,
In the heating means, the earth and sand received on the pearlite / sand mixing facility side is heated by the thermal energy of the supplied exhaust gas. As a result, the evaporation of water in the earth and sand is promoted, and the water content of the earth and sand is further reduced, so that the improved soil can be effectively produced. That is, the earth and sand processing work can be performed smoothly and energy-saving.

A second aspect of the present invention is a pearlite crushed stone receiving unit such as a pearlite crushed stone receiving unit 200 capable of receiving pearlite crushed stone such as pearlite crushed stone PS, and a pearlite crushed stone receiving unit. Pearlite baking means such as a baking apparatus 5 capable of baking pearlite refined stone to generate a baking pearlite such as baking pearlite PL, and a second transportation capable of transporting baking perlite produced by baking by the perlite baking means to the outside. Perlite baking equipment 40 having perlite transport means such as means 11
Has a pearlite baking facility, etc., the pearlite baking facility is provided with a pearlite / soil mixing facility such as a pearlite / soil mixing facility 41, the pearlite / soil mixing facility,
Fired perlite receiving means such as fired perlite receiving means 300 capable of accepting fired perlite transported by the perlite transporting means of the perlite firing equipment, and sediment receiving means 400 capable of receiving sludge in the form of sludge such as excavated earth and sand KD. And the like, the kneading mixer device 15 and the like capable of kneading and mixing the fired perlite receiving means and the fired perlite received by the earth and sand receiving means with the earth and sand to produce improved soil such as improved soil MD. A mixing means and an improved soil carrying means such as an improved soil transporting means 22 capable of carrying out the improved soil generated by the kneading and mixing means to the outside, and the pearlite crushed stone receiving means receives the pearlite crushed stone. Receiving the first pearlite calculus to the first pearlite baking means, the first transport means 3 and the conveyor 4 A pearlite holding unit such as a stock tank 12 capable of holding the received baked pearlite. The pearlite holding unit includes a baked pearlite holding unit. A pearlite amount detection unit 29, such as a detection sensor 30, etc., capable of detecting the amount of pearlite Q1 or the like is provided. The pearlite amount detection unit is configured to detect the amount of fired pearlite detected by the pearlite amount detection unit. A pearlite supply amount calculation unit such as a supply amount calculation unit 31 for calculating an amount such as an amount Q2 of calcined pearlite to be generated and supplied by the pearlite baking unit based on the pearlite supply amount. Based on the amount of fired pearlite to be generated and supplied calculated by the calculation unit, the Since the conveyance amount control unit such as the conveyance amount control unit 32 for controlling the conveyance amount such as the conveyance amount V1 of the pearlite stone to the light firing means is provided, the firing generated by firing on the pearlite firing equipment side Since the perlite is transported to the perlite / sand mixing facility side by the perlite transport means, there is no need to transport the expanded perlite with a dump truck or the like,
To that extent, the earth and sand processing operation can be performed smoothly and at low cost, that is, energy saving. In addition to this, in the present invention, the amount of calcined pearlite held in the pearlite holding unit is detected by the pearlite amount detecting means, and based on the amount of calcined pearlite detected thereby, the calcining to be generated and supplied by the pearlite burning means is performed. The amount of pearlite is calculated by a pearlite supply amount calculation unit, and based on the amount of baked pearlite to be generated and supplied calculated by the pearlite supply amount calculation unit, transport of the pearlite pearlite to the pearlite baking means by the receiving and transporting device Since the amount is controlled, excessive production and supply of fired pearlite from the pearlite firing means side is prevented, exceeding the amount of fired pearlite that can be held in the pearlite holding unit. That is, an excessive amount of fired pearlite is not generated and supplied with respect to the amount of earth and sand, so that the size of the pearlite holding unit can be made as small as possible. In particular, calcined pearlite has a problem in that the volume of the calcined pearlite is larger than that of the pearlite sinter before calcining, so that the place for stocking the calcined pearlite becomes large. However, in the present invention, the above-mentioned problem is solved by minimizing the size of the pearlite holding portion for stocking the fired pearlite, and therefore, effective use of space is realized. Further, since excessive generation of calcined pearlite is prevented, waste in earth and sand treatment work is eliminated, and energy saving is realized.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing one example of a soil and sand mixing treatment facility according to the present invention.

FIG. 2 is a schematic side view showing the vicinity of the pearlite / sand mixing facility, which is of a different form from the earth / sand mixing facility of FIG.

FIG. 3 is a block diagram showing a control device in the earth and sand mixing processing equipment of FIG. 1;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Sand processing equipment (sand mixing processing equipment) 3 ... Reception conveyance apparatus (1st transportation means) 4 ... Reception conveyance apparatus (conveyor) 5 ... Perlite baking means (firing apparatus) 9a ... Exhaust part 11 ... ... Perlite transportation means (second transportation means) 12 ... Perlite holding part (stock tank) 15 ... Kneading and mixing means, heating means (Kneading mixer device) 16 ... Heating means (earth and sand hopper) 22 ... Improved soil Unloading means (improved soil transport means) 23 ... Exhaust gas transport means (exhaust gas supply pipe unit) 29 ... Perlite amount detection means (pearlite amount detection unit) 30 ... Perlite amount detection means (detection sensor) 31 ... pearlite Supply amount calculation unit (Supply amount calculation unit) 32 Transport amount control unit 40 Pearlite baking equipment 41 Pearlite and earth and sand mixing equipment 200 Pearlite refined stone receiving (Perlite quarry receiving unit) 300… Fired pearlite receiving means 400… Sediment receiving means HG… Exhaust gas KD… Sediment (excavated earth and sand) MD… Improved soil PL… Calculated perlite PS… Perlite quarry Q1 ...... Amount Q2 ... Amount V1 ... Conveyance amount

────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Masafumi Nakano 1-5-20 Kaigan, Minato-ku, Tokyo Inside Tokyo Gas Co., Ltd. (72) Inventor Yukimo Takahashi 3-7-1 Nishishinjuku, Shinjuku-ku, Tokyo No. Tokyo Gas Engineering Co., Ltd. (72) Inventor Teruhiro Isayama 1-2-1, Marunouchi, Chiyoda-ku, Tokyo Japan Nippon Kokan Co., Ltd. (72) Katsuji Maeda 3--10, Iwamotocho, Chiyoda-ku, Tokyo No. 1 Mitsui Construction Co., Ltd. (58) Field surveyed (Int. Cl. ⁷ , DB name) E02F 5/00-7/10 C09K 17/00-17/52 E02D 1/00-3/12 103

Claims (2)

(57) [Claims] 1. A pearlite calculus receiving means capable of accepting pearlite crushed stone, a pearlite calcination means capable of calcination of pearlite crushed stone received by the pearlite crushed stone receiving means to generate baked pearlite, and a pearlite calcination means. A pearlite transporting means capable of transporting baked pearlite produced by baking to the outside, and a pearlite baking facility having an exhaust portion capable of discharging exhaust gas generated by calcination of the pearlite spar to the outside, A pearlite / sand mixing facility is provided in the sintering facility, and the pearlite / sand mixing facility is a baked pearlite receiving means capable of accepting the baked pearlite transported by the pearlite transporting means of the pearlite sintering facility, and a sludge state soil and sand. Acceptable sediment receiving means,
Kneading and mixing means capable of kneading and mixing the fired pearlite and the earth and sand received by the fired perlite receiving means and the earth and sand receiving means to form an improved soil; heating means capable of heating the received earth and sand; and The apparatus further includes an improved soil carrying means capable of carrying out the improved soil generated by the kneading and mixing means to the outside. The exhaust unit of the pearlite baking facility and the heating means of the pearlite / sand mixing facility are discharged from the exhaust unit. Earth and sand processing equipment connected by exhaust gas transport means in a form capable of transporting and supplying the exhaust gas to the heating means. 2. A pearlite sinter receiving means capable of accepting pearlite spar, a pearlite sintering means capable of sintering pearlite sacrifice received by the pearlite sacrifice receiving means to generate calcined pearlite, and the pearlite sintering means. A perlite baking facility having a perlite transport means capable of freely transporting the baking perlite produced by baking to the outside, and a perlite / sediment mixing facility provided in the perlite baking facility; Fired perlite receiving means capable of accepting fired perlite that has been transported by the perlite transporting means of the firing equipment, and sediment receiving means capable of receiving sludge-state earth and sand,
A kneading and mixing means capable of kneading and mixing the fired perlite and the earth and sand received by the fired perlite receiving means and the earth and sand receiving means to form an improved soil, and carrying out the improved soil generated by the kneading and mixing means to the outside. A pearlite crushed stone receiving means, wherein the pearlite crushed stone receiving means receives the pearlite crushed stone, and has a receiving and conveying device capable of freely transferring the pearlite crushed stone to the pearlite calcination means; The receiving means has a pearlite holding portion capable of holding the received fired pearlite, and the pearlite holding portion is provided with a pearlite amount detection means capable of detecting the amount of fired pearlite held in the pearlite holding portion, The pearlite amount detecting means is provided with the pearlite amount based on the amount of calcined pearlite detected by the pearlite amount detecting means. A pearlite supply amount calculation unit for calculating the amount of baked pearlite to be generated and supplied by the pearlite baking unit; and the pearlite supply amount calculation unit calculates the amount of baked pearlite to be generated and supplied calculated by the pearlite supply amount calculation unit. Earth and sand processing equipment provided with a transport amount control unit for controlling a transport amount of pearlite refined stone to the pearlite baking means by the receiving and transporting device based on the transport amount control unit.