JPH0680368B2 - Shredding incinerator - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a crushing incinerator applied when incinerating a molded article incinerator, particularly a flame-retardant molded article incinerator such as an FRP molded article.

[Prior Art] FRP molded products such as bathtubs and hulls contain glass fibers and calcium carbonate in addition to synthetic resin materials, and they are FR in conventional incinerators.
If the waste of the P molded product is incinerated as it is, the molded product will incompletely burn and the core part will be in an unburned state.Therefore, in the past, the waste of the FRP molded product was cut and fragmented. It was incinerated.

[Problems to be Solved by the Invention] Therefore, there is a problem in that the labor for incinerating the waste of the FRP molded product is complicated and an extra step for cutting the FRP molded product is required, and the incineration cost becomes high.

An object of the present invention is to solve the above problems and to provide a crushing incinerator capable of incinerating waste such as FRP molded products as they are without removing unburned portions.

[Means for Solving the Problems] In the crushing incinerator of the present invention, air for promoting combustion is provided in the vicinity of the start end and the end of the transfer passage into which the incinerated matter that is put into the furnace chamber and pushed by the stoker moves. A pair of crushing members that respectively form a primary combustion zone and a secondary combustion zone that are blown from the side and that move forward and backward to crush and crush the incinerated matter from both sides between the combustion zones. , A crushing roll that is driven to rotate while crushing while passing through the incinerator is installed, and a fragmentary incinerated material that is crushed by the crushing roll and burned in the secondary combustion zone is installed ahead of the secondary combustion zone. It has a configuration in which a crushing roll that is driven to rotate for crushing

[Operation] When the incinerator is put into the furnace chamber as it is, the incinerator is ignited, and then the incinerator is pushed from the starting end to the terminating end of the transfer passage by the stoker. The air that promotes combustion is blown to enhance the combustion effect of the incinerated material, and then the incinerated material that has passed through the primary combustion zone is crushed by being squeezed by being squeezed from both sides by a pair of crushing members and crushed by the crushing rolls. After crushing and fragmenting, in the secondary combustion zone, air that promotes the combustion is blown to each fragment-like incinerated material to enhance the combustion effect of each fragment-like incinerated material, and each fragment-like incinerated material exposed by crushing is not Burning the burning part, ashing each piece of incineration as a whole,
Next, each of the fragment-like incinerated materials that have been ashed and passed through the secondary combustion zone are crushed by a crushing roll and then discharged to the outside of the furnace chamber.

EFFECTS OF THE INVENTION Since the present invention is configured as described above, even if an incineration product of a molded article is put into the furnace chamber as it is, the entire incineration product is properly ashed without leaving an unburned portion. It is possible to effectively incinerate the incineration of the molded article, and it becomes unnecessary to subdivide the incinerated article of the molded article prior to the incineration, so that the incineration cost of the incinerated article of the molded article can be reduced.

[Embodiment] Next, an embodiment of the present invention will be described with reference to the drawings.

In a crushing incinerator installed to incinerate a molding grade incinerator such as an FRP molded article, an incinerator S is placed on an upper part of a front wall 1a of a furnace body 1 in which a furnace chamber 2 is formed. A charging port 3 is provided which is opened for charging into the inside and is opened and closed by a cover plate 4.

A large number of heat-resistant bricks 35 are embedded in each wall of the furnace body 1 in order to prevent heat loss.

At the upper end of the furnace body 1, there is installed a boiler 38 having a can body 38a which is connected to a water supply tank 36 through a water supply pipe 37 and stores water. The boiler 38 has a can for absorbing combustion heat in the furnace chamber 2. Body 38a
A large number of heat transfer pipes 38b arranged inside the chamber are communicated with a dust collector 40 installed outside the furnace body 1 via an exhaust duct 39, and the dust collector 40 is connected to a suction fan 41 via a suction duct 42. It is in communication. Push fan in the middle of the exhaust duct 39
An air heater 44 communicated with 43 is externally fitted.

On the frame 7 fixed to the front wall 1a of the furnace body 1, the push cylinder 5 and the pusher 6 vertically attached to the tip of the piston rod 5a of the push cylinder 5 are installed. The incinerated material S transferred to the front part is extruded from above the frame 7 by the pusher 6 and charged into the furnace chamber 2 through the charging port 3.

In the reciprocal stoker 8 installed for intermittently pushing the incinerated material S thrown into the furnace chamber 2 forward, a pair of upper and lower feed cylinders 9, 9 are provided below the front wall 1a of the furnace body 1. Are mounted in parallel with each other in an inclined posture via a bracket 10, and are mounted slidably on the rollers 11, 11 at the tip of the piston rod 9a of the upper feed cylinder 9 so as to move forward and backward in an oblique direction together with the piston rod 9a. The upper rod stand 12 is connected to the lower feed cylinder 9, and the rollers 14 and 14 rolling on the fixed base 13 are provided at the tip of the piston rod 9a of the lower feed cylinder 9 so as to move forward and backward together with the piston rod 9a in an oblique direction. Lostor stand
15 are connected.

Slightly above the both stalls 12, 15 each has a plurality of stirrups arranged in a horizontal row with the base ends pivotally attached to the horizontal rods 43 that are laid between the side walls 1c. A plurality of fixed rostruts 16 to 16 arranged in the front-rear direction in a state of being slightly inclined toward the transfer direction of the object S are installed immovably, and the base ends of the rostrut bases 12 and 15 are respectively fixed. Has a plurality of rostrul pieces pivotally attached to the upper roster stand 12 or the lower roster stand 15 and arranged in a horizontal row, and arranged in the front-rear direction in an arrangement state in which the incinerator S is slightly inclined downward in the transfer direction. Piston rods of the feed cylinders 9 that are slidably interposed between the fixed rostruts 16
A plurality of movable rostruts 17 that move forward and backward in an inclined posture by the forward and backward movement of 9a are attached. Both gulls 16,17
Are partially arranged so as to overlap each other and are arranged in a retracted manner, and a plurality of vent holes 58 are formed through each of the loss struts of both the loss struts 16 and 17.

A transfer path 18 having a downward slope, through which the incinerated material S pushed by the reciprocating stoker 8 is transferred, is provided on the inside of the rear wall 1b from the inside of the charging port 3 on the row of the rostles in which the fixed rostruts 16 and the movable rostruts 17 are arranged. Formed over one side, the transfer passage 18
The incineration S sent to the start end 18a of the
By the repeated forward / backward movement of 7, the transfer passage 18 is intermittently pushed to the end portion 18b side. By individually adjusting the advancing / retreating speeds of the piston rods 9a of the two feed cylinders 9, the movable speeds 17 on the front side driven by the upper feed cylinders 9 push the incinerated material S and the lower feed cylinders 9 drive. It is possible to adjust the feed speed at which each of the movable rostruts 17 on the rear side pushes the incinerated material S.

A pair of left and right pressing cylinders 20 and 20 are attached to each other at right angles to each other in the vicinity of the central portion of both side walls 1c of the furnace body 1,
The tips of the piston rods 20a of both the pressing cylinders 20 are made of a heat-resistant casting made of a prismatic prism that is pushed in and out of the transfer passage 18 in order to compress and incinerate the incinerated matter S during combustion by compressing it from both sides. The crushing members 21 are horizontally mounted, and the piston rods 20a of the pressing cylinders 20 are pushed each time the burning incineration material S is pushed near the center of the transfer passage 18.
Respectively move inward and then move outward, and the incineration material S softened by combustion is compressed from both sides by both crushing members 21 to be compressed and deformed or crushed.

In the vicinity of the central portion of the transfer passage 18, a pair of horizontally rotatably separated vertically are formed in front of both the crushing members 21 so as to compressively deform and pass the burning incineration S to roughly crush it. A crushing roll 22 having rotating cylinders 23, 23 is installed. A large number of needle-like crushing claws 23a made of heat-resistant steel are erected on the outer peripheral surfaces of both rotary cylinders 23, and the shaft portions 23b of both rotary cylinders 23 are hollow and the cooling water folds back inside. It is formed so as to circulate in a shape. Both ends of both shafts 23b are both side walls 1
The rotary joints 24 are inserted into and supported by c, and the rotary joints 24 connected to the water supply conduit 37 and the discharge conduit are respectively attached to one ends of both shaft portions 23b. The lower rotary cylinder 23 is positively rotationally driven by the reduction motor 26, and the upper rotary cylinder 23 is rotated by the passage of the incinerated material S and is displaced vertically.

Each piece of incinerated material crushed by the crushing roll 22 is transferred to the transfer passage 18
Is sent to the end portion 18b of the.

At the rear end of the bottom wall 1d of the furnace body 1, near the rear end, a fixed fixed stru
A partition wall 26 on which the tip end of is placed is erected, and between the partition wall 26 and the rear wall 1b is roughly crushed by a crushing roll 22 into fragments, and each is extruded from the terminal end portion 18b of the transfer passage 18. A falling passage 27 is formed through which the incinerated debris passes.

At the lower end of the drop passage 27, a crushing roll 28 having a pair of rotating cylinders 29, 29 horizontally rotatably adjacent to each other in the front-rear direction is installed to crush the incinerated debris-like incinerated material. . A large number of needle-like crushing claws 29 are provided on the outer peripheral surfaces of both rotary cylinders 29.
The heat-resistant steel screws 29a in which b is planted are respectively wound in a spiral shape, and the shaft portions 29c of both rotary cylinders 29 are hollow and formed so that the cooling water flows in a folded shape inside. There is. Both ends of both shafts 29c are respectively inserted and supported by the side wall 1c, and one end of both shafts 29c has a water supply conduit 3
7 and rotary joint 30 connected to the drain line respectively
Are installed respectively. The rotating cylinder 29 on one side is the side wall 1b
The rotary cylinder 29 on the other side is rotationally driven in a direction opposite to the rotational direction of the lower rotary cylinder 29 via a gear.

The ash formed by crushing each ashed fragment-like incinerated material by the crushing roll 28 drops onto the base end of the ash discharging conveyor 32 and is carried out of the furnace chamber 2 by the ash discharging conveyor 32.
It is accumulated in the ash bunker 34 by the ash collecting conveyor 33.

Air boxes 56 are provided on the outer wall surfaces of both side walls 1c of the furnace body 1, respectively.
Each air box 56 is connected to the air heater 44 via the air supply pipe 57, and the air generated by the pushing fan 43 is heated by the air heater 44 and flows into each air box 56.

Air that promotes combustion is blown toward the front end of both side walls 1c of the furnace body 1 toward the incineration material S ignited at the starting end portion 18a of the transfer passage 18 from both sides to perform primary combustion near the starting end portion 18a of the transfer passage 18. A large number of first air nozzles arranged slightly above both sides of the starting end 18a of the transfer passage 18 to form the zone 47.
50 to 50 are attached in a penetrating manner so as to face each other, and each first air nozzle 50 is communicated with an air box 35.

Near the rear portions of both side walls 1c of the furnace body 1, air that promotes combustion toward the incineration material S that is roughly crushed and burned by the first crush rolls 22 is blown from both sides, and the air is accelerated near both ends 18b of the transfer passage 18. A large number of second air nozzles 51 to 51, which are arranged slightly above both sides of the end portion 18b of the transfer passage 18 to form the next combustion zone 48, are mounted in a penetrating manner and face each other. Each of the two air nozzles 51 communicates with an air box 56.

In the vicinity of the upper end of the rear part of both side walls 1c of the furnace body 1, air for burning unburned gas in the combustion gas generated by combustion of the incineration material S during incineration of the incineration material S is blown from both sides to transfer passage 18
A plurality of third air nozzles 52 to 52, which are respectively disposed above the second air nozzles 51 on both sides to form a combustion gas flow zone 49 above the respective air nozzles, are mounted in a penetrating manner and face each other. 3 Air nozzles 52 are air boxes
It is connected to 56.

Near the lower end of the front part of both side walls 1c of the furnace body 1,
In order to blow out air to the lower part of 7 to cool each of the rostruts 16 and 17 and to send the combustion air into the transfer passage 18 through each of the ventilation holes 58 of each of the rostrut pieces, an appropriate number of air boxes 56 are connected. The fourth air nozzles 53 are attached in a penetrating manner.

The incineration material S is transferred to the inner wall of the upper part of the front wall 1a of the furnace body 1
Combustion gas generated during the transition from the start end portion 18a to the end portion 18b while being burned is disposed above the primary combustion zone 47 so that the combustion gas passes through the inside of the combustion gas flow zone 49 and reversely flows forward. A partition wall 54 extending downwardly toward the gas flow zone 49 is integrally attached to the partition wall 54, and an igniter (not shown) for igniting the incineration material S introduced into the furnace chamber 2 is attached to the partition wall 54. Is installed.

Above the partition wall 54, the partition wall 54 separates the exhaust gas passing through the combustion gas flow zone 49 from the furnace chamber 2 from the primary combustion zone 47 so as to discharge the exhaust gas to the outside of the furnace chamber 2.
And the exhaust gas passage 55 communicating with the heat transfer pipe 38b of the boiler 38.
Is formed, the combustion gas generated in the primary combustion zone 47 flows to the combustion gas flow zone 49 side and merges with the combustion gas generated at other positions, and the unburned gas in the merged combustion gas is the combustion gas flow zone. After being burned in 49 and the entire combustion gas is completely burned, the exhaust gas flows into the exhaust gas passage 55, further flows through the heat transfer pipe 38b of the boiler 38, and is discharged into the dust collector 40 through the exhaust duct 39. It While the exhaust gas flows in the boiler 38, the heat of the exhaust gas is exchanged with the water in the boiler 38.

Next, the operation and effect of the embodiment having the above-mentioned configuration will be described.

In this example, the incinerated material S is put into the furnace chamber 2 as it is to ignite the incinerated material S, and then the incinerated material S is pushed from the start end 18a to the end end 18b of the transfer passage 18 by the reciprocating stoker 8. At this time, in the primary combustion zone 47, air is blown from both sides to promote the combustion of the incinerated material S to enhance the combustion effect of the incinerated material S, and then the incinerated material S that has passed through the primary combustion zone 47 is pushed in a pair. The crushing member 21 squeezes it from both sides to crush it, and the crushing roll 22 crushes it into fragments, and then transfers the incineration S to the secondary combustion zone 48,
In this secondary combustion zone 48, air that promotes the combustion is blown from each side to each fragment-like incinerated material to enhance the combustion effect of each fragment-like incinerated material, and the unburned portion of each fragment-like incinerated material exposed by crushing is burned. Then, each piece of incinerated material is ashed as a whole, and then each piece of incinerated material that has been ashed and passed through the secondary combustion zone 48 is crushed by the crushing roll 28 to incinerate the incinerated material S, and then crushed. Ash is discharged to the outside of the furnace chamber 2.

On the other hand, the combustion gas generated while the incinerator S is incinerated in the furnace chamber 2 is merged in the combustion gas flow zone 49 to burn the unburned gas in the combustion gas to completely burn the combustion gas as a whole. After that, the exhaust gas is made to flow into the exhaust gas passage 55 and discharged to the outside of the furnace chamber 2.

Therefore, even if the incinerator S is put into the furnace chamber 2 as it is, the unburned portion in the incinerator is eliminated and the incinerator as a whole is properly ashed, and the incinerated article is effectively incinerated. As a result, it is not necessary to subdivide the molded article waste prior to incineration, and the incineration cost of the molded article incineration can be reduced.

Further, there is an effect that unburned gas contained in the exhaust gas generated during the incineration of the incinerated material S can be eliminated to suppress the generation of harmful gas.

[Brief description of drawings]

The drawings show an embodiment of the present invention. Fig. 1 is a vertical sectional view of a crushing incinerator, Fig. 2 is a sectional view taken along line X1-X1 of Fig. 1, and Fig. 3 is also an enlarged view taken along line X2-X2. Cross-section and Fig. 4 are the same X3-
X3 line expanded sectional view, FIG. 5 is a schematic side view of the entire incinerator. 2 …… Furnace chamber 8 …… Reciprocating stoker 18 …… Transfer passage 21 …… Crushing member 22 …… Crushing roll 28 …… Crushing roll 47 …… Primary combustion zone 48 …… Secondary combustion zone S …… Incinerator

Claims (1)

[Claims] 1. A primary combustion zone and a secondary combustion zone in which air for promoting combustion is blown from the side near the start end and the end end of a transfer passage into which the incinerated matter that is thrown into a furnace chamber and pushed by a stoker moves. A pair of crushing members that respectively move forward and backward to form crushing by squeezing the incinerated material from both sides while forming the following combustion zones respectively,
A crushing roll that is driven to rotate while crushing while passing the incinerated material is installed, and a fragmentary incinerated material that is crushed by the crushing roller and burned in the secondary combustion zone is installed ahead of the secondary combustion zone. A crushing incinerator characterized by having a crushing roll that is driven to rotate for crushing.