JPS6033524B2 - peristaltic separator - Google Patents

Description

[Detailed description of the invention] The present invention relates to a machining separator.

-Generally, a method as shown in the block diagram of Fig. 1 is adopted for sludge treatment.

In other words, in this method, the raw sludge from the sludge storage tank is sent to the floc adjustment tank, and depending on the type and concentration of the raw sludge, chemicals such as soluble soda pack and polymer flocculant are added to the floc adjustment tank from the chemical tank. After adjusting the growth of the sludge into good flocs, the flocs are sent from the floc adjustment tank to a dehydrator by gravity, and the dehydrator separates them into dehydrated cake and dehydrated water (purified water). In addition, the dehydrated cake is transported off-site and either landfilled or reused, and the dehydrated water is returned to the raw water tank. By the way, conventional dehydrators used for such sludge treatment have the disadvantage that the operating rate decreases due to clogging with fine particles.

Therefore, an object of the present invention is to provide an ant separator that is less likely to be clogged with fine particles. The present invention will be explained below with reference to Examples. Figures 2 to 9 are views showing an ant separator according to an embodiment of the present invention, in which Figure 2 is a front view showing the external appearance, Figure 3 is a front sectional view, and Figure 4 is a partial view. 5 is a plan sectional view, FIG. 6 is a side sectional view showing the rotary shaft rotation mechanism, FIG. 7 is a perspective view of the monkey piece, and FIG. 8 is a cross-sectional view showing the state in which the oak piece is attached. FIG. 9 is a side view of a part of the cleaning liquid inflow path system.

As shown in Figs. 3 and 5, this mackerel separator has a monkey tank 1 on the upper right side, a motor 2 serving as a drive source on the lower right side, and 3a to 3h and 3s attached to the sand tank 1 on the left side.
It has a structure in which a transmission mechanism 4 for transmitting the rotation of the motor 2 is arranged to each of 16 rotating shafts 31 named .about.3z. The entire framework is composed of angle irons 5, partition walls 6, covers 7, and the like. The periphery and bottom of the oak tank 1 are an inner wall 8 and an outer wall 9.
It has a double structure consisting of a single ceiling plate 1, and has a supply port 12 for supplying the treated liquid 11, which is a sludge liquid containing flocs, and a bottom plate that becomes lower toward the center. A discharge pipe 13 for discharging purified water is attached to the center of the inner wall.

This discharge pipe 13 extends to the outside of the dehydrator. Further, 16 rotating shafts 3 are rotatably fixed through a pair of inner walls 14 extending substantially parallel to each other. The rotating shaft 3 does not pass through the outer wall 16 of one side wall 15 that also constitutes the outer wall of the dehydrator, but the rotating shaft 3 does not pass through the outer wall 16 of the other side wall that is located substantially on the extension of the partition wall 6 and within the cover 7. 17, the rotating shafts 3 pass through each other, and a 18a is provided at the tip thereof.
It has sprockets 18 of ~18h and 18s~18z. The rotating shaft 3 is rotatably attached via a bearing 20 to independent receiving portions 19, as shown in FIG. 9, which are disposed between an inner wall 14 and an outer wall 16. Further, among the 16 rotating spinal cords 3, half are arranged in the upper stage and the remaining half in the lower stage, forming a row along the substantially horizontal direction. The rotation shafts 3 in the upper row and the lower row are vertically shifted relative to each other, and rotate in opposite directions (the upper row rotates to the left, and the lower row rotates to the right). This rotation is transmitted by a transmission mechanism 4 as shown in FIGS. 3, 5, and 6. In other words, the rotation of motor 2 is
Rotation in the opposite direction is transmitted to a first gear 23 having a first sprocket 22 meshing with a drive gear 21 fixed to the drive gear 21, and rotation in the opposite direction is transmitted to a second gear 25 having a second sprocket 24 meshing with the first gear 23. Ru. 1st gear 2
The rotation of the third and second gears 25 is transmitted to the fifth, sixth, seventh, and eighth sprockets 27 and 25, respectively, via the first and second sprockets 22 and 24, the timing belt 26, etc.
28, 29, and 30, respectively, and via the fifth, sixth, seventh, and eighth sprockets 27 to 30, the timing belt 33, etc. It is transmitted to sprockets 18a to 18h, 18s to 18z in the row and lower row. In addition,
As shown in FIG. 3, the lengths of the rotating shafts 3 of the sprockets 18a to 18h and 18s to 18z in each row are different so that they do not interfere with each other. On the other hand, the pitch of the rotating shafts 3 in each row is a pitch.

In addition, stepped donut-shaped oak pieces 34 as shown in FIG. 7 are fixed to each rotating shaft 3 in the same direction (shape) in an overlapping manner extending completely between the pair of inner walls. The crossing piece 34 has a thick part 35 in the shape of a disk at the center of one side, and a thin part 36 in the form of a disk with a thickness half the thickness 2c of the thick part 35 that spreads around the thick part 35. and the width b of the thin portion 36
On a circle whose circumference is the locus of 1/2b in the center of , there are regular intervals,
Here, holes 37 having a diameter of d are provided at 90 degree intervals. The diameter of the circle in which the bright holes 37 of this monkey piece 34 are provided is made to match the pitch a between the rotating shafts 3. Further, the oak piece 34 is made of metal, resin, ceramic, or the like, which is not corroded by the liquid to be treated and is hard to wear. Further, although not particularly shown in the drawings, each piece 34 is fixed using a key or the like so as not to rotate with respect to the rotating shaft 3. Further, the respective holes 37 of the overlapping pieces 34 are fixed so as to be located on the same straight line, as shown in FIG. 8. In addition, the specific dimensions of the main parts of the crossing piece 34, for example, a is 70 skin, b is 30, and c is
=0.2 ribs, d=10 ribs. Note that the shape of the crossing piece 34 may be such that instead of having the thick wall portion 35 at the center as shown in the figure, this portion may be a separate smoother, or the thick wall portion 35 at the center may
5 may not protrude from only one side of the thin-walled portion, but the thin-walled portion 36 may continue in the center of the thick-walled portion. As shown in FIG. 8, the unit monkey body 38 is made up of a rotating shaft 3 and a wooden piece 34 fixed to the rotating shaft 3 in a fixed form. The orientation, that is, the front and back sides are opposite to each other.

As a result, the recessed sides of the thin walled portions of the pieces 34 of adjacent unit crossing bodies 38 overlap with each other, and no gaps are formed in the entire rod group. Note that each part of the monkey tank that comes into direct contact with the liquid to be treated is made of a corrosion-resistant material. On the other hand, the interval between the upper and lower rows of rods is wide so that the liquid to be treated 11 can enter between them.

Further, the outer surface of the outermost oak piece 34 of each unit oak body 38 comes into contact with the surface of the pair of inner walls 14 that support the rotating shaft 3, and the liquid to be treated 11 is prevented from leaking downward in this part. There is.
Further, the outer peripheral surfaces of the monkey pieces 34 of the unit monkey bodies 38 at both ends of the lower row of rod groups are in contact with the surface of the inner end wall 39 of the monkey tank 1, respectively. Therefore, the oak piece 3 on the outer periphery of the unit oak body 38 at both ends
The liquid to be treated (actually, since the gap is extremely narrow at 0.2 willow, the filtered purified water) enters the purified water collection chamber 40 below only through the gap c between the thin walled portions 36 of 4. In this case, in order to prevent leakage from the slit-shaped gap, a group of leakage prevention pieces that engage with the slit (gap) may be provided on the inner end wall 39. A wide channel space 41 is provided between one end and the inner end wall 39. Therefore, the processing liquid 11 carried by the rotation of the unit rods 38 in the upper row passes through this channel space 41 and downwards. and move onto the lower row of monkey bodies.On the other hand, a pair of inner walls 1
A discharge port 45 having an opening/closing lid 44 for discharging the dehydrated cake 43 to the outside of the canister tank 1 is provided at the end of the elongated end-moving space 42 surrounded by the upper and lower rows of cane bodies.

The opening/closing lid 44 has a rack portion that meshes with a gear 47 of the opening/closing handle 46, and is opened/closed by rotating the opening/closing handle 46 in forward and reverse directions. Further, inside the cylindrical discharge port 45, the discharge port 4
An adjustment lid 48 is provided that swings up and down about the ceiling of 5. The adjusting lid 48 adjusts the flow path diameter of the discharge port 45 by rotating the adjusting handle 49 in the forward and reverse directions. By operating this adjustment handle 49, the movement resistance of the dehydrated cake 43 moving through the discharge port 45 can be changed, so that the hardness of the dehydrated cake 43 can be adjusted. In this embodiment, the two unit rods 38 in the upper and lower rows on the side of the discharge port 45 are made higher than the others by e, so as to increase the movement resistance of the dehydrated cake 43 as described above. . Further, each monkey piece 34 of the adjacent unit monkey bodies 38 has a monkey hole 37 located between the rotating shafts 3, as shown in FIGS.
As shown in FIG. 5 and FIG. 8, they are located on the same line and are in mutual communication.

Further, a dehydration hole 50 is provided in a pair of inner walls 14 corresponding to the hole 37 in the lotus state (see FIG. 9).
Furthermore, dewatering holes 50' are provided on the inner wall 14 corresponding to each layer of the water passage hole 37 of the Fujishita. In the other side wall 17, the purified water that has entered between the dehydration hole 50 and the other side wall 17 flows through a guide hole provided at the lower part of the inner wall 14 of the other side wall 17, as shown by the solid arrow in FIG. The purified water enters the purified water collection chamber 401 through 51 and is discharged from the discharge pipe 13. On the other hand, in one side wall 15, a frame 52 is provided on the inner wall 14 and the outer wall 16, as shown in FIG. . Also, a cleaning liquid supply pipe (supply port) 5 suitable for this buffer chamber 53 is provided.
4 is attached to the outer wall 16. This cleaning liquid supply pipe 54 supplies the cleaning liquid to the buffer chamber 53 when cleaning the monkey pieces 34, etc.
Used when sending to. As shown by the two-dot chain line in FIGS. 9 and 3, the cleaning liquid pumped into the buffer chamber 53 enters the hole 37 of the oak piece 34 through the dehydration hole 50, and conversely flows into the monkey tank 1 through the passage hole 37. The water flows back and washes the oak piece 34 and the monkey tank 1. In addition, at this time, some of the parts pass through the hole 37,
The other dewatering hole 5 also enters the purified water collecting chamber 40 through the other side wall 17. As a result, the entire channel system can be cleaned. In addition, in order to prevent water from being supplied to the dehydrated cake, it is preferable that no holes are provided in the holes in the upper and lower rows of unit rods on the discharge port side. In such a separator, the liquid to be treated 11 having flocs
are sequentially supplied into the oak tank 1 from the supply port 12.

The flocs and the like sequentially move to the left in FIG. 4 on the rotating upper row of rods, leave the left end, pass through the channel space 41, and move onto the lower row of rods. In addition, the width of the upper part of the monkey body group is 0.2
Since many fan-shaped depressions with extremely narrow sides are formed, large flocs and the like do not fit into these depressions. Therefore, these depressions allow the liquid to be treated 11 to pass therethrough in the same way as a wicker cloth, and the liquid to be treated 11 that has entered the depressions becomes purified water. This purified water enters the dehydration hole 50 of the other side wall 17 through the monkey hole 37, and is discharged to the outside through the other side wall 17, the guide hole 51, the purified water collection chamber 40, and the discharge pipe 13. In addition, the liquid to be treated 11 that has entered the reluctance space 42 has its upper and lower rows of rods, whose relative positions are slightly shifted vertically, rotated in the same transfer direction, thereby increasing the vertical distance between them. A drooping movement occurs in which the material is repeatedly compressed and expanded through a space that is gradually becoming smaller or smaller. Incidentally, since end-motion movement occurs even without shifting the vertical relative position, it can be used in this state, but the above-mentioned method allows the trout movement to be performed more precisely and is more efficient. As a result, the liquid to be processed 11, which is the object to be filtered and which contains a mixture of large particles and various granular substances, is repeatedly compressed and expanded at a slow speed, so that the large particles are transferred to the center and the small particles are transferred to the center. The water, which is the smallest, is pushed out to the outermost edge and separated by the crosspiece 34. At this time, a layer of fine particles is also formed between the pieces 34, so that this layer plays the role of a oak material and further improves the oak passing performance. However, on the contrary, this layer of fine particles causes clogging, which is eliminated by being removed about four times per minute when the pieces rotate.
Therefore, prior to processing, the opening/closing handle 46 is operated to close the opening/closing lid 44.

As a result, substances with larger particles are accumulated in the discharge port 45 portion blocked by the openable lid 44 starting from the region in contact with the openable lid 44, and a dehydrated cake 43 begins to be formed. As the processing time increases, the amount of this dehydrated cake 43 increases, and the moisture content of the lower layer or the opening/closing lid side decreases.
Next, when the dehydrated cake 43 has been formed to some extent,
The opening/closing lid 44 is opened to open the discharge port 45.

Then, the dehydrated cake 43 is gradually pushed out by the dovetail movement. Therefore, this extruded dehydrated cake 43
carry it to the designated location. In addition, in this embodiment, the discharge port 4
Since the unit monkey bodies 38 in the upper and lower rows on the 5th side are positioned higher than the others, the movement resistance of the dehydrated cake becomes high and the dehydrated cake becomes relatively hard. Further, since the adjustment lid 48 by the adjustment handle 49 is provided as a movement resistance increasing mechanism, the adjustment lid 48 is made to protrude more into the flow path of the discharge port 45 when the dehydrated cake is to be hardened. On the other hand, if you want to make the dehydrated cake faster, use the adjustment lid 4.
By reducing the amount of protrusion 8, the movement resistance of the dehydrated cake is reduced, and as a result, a dehydrated cake of desired hardness can be produced. According to such an embodiment, the specially shaped monkey piece 34
In addition, by using a monkey body with a combination thereof, it is possible to carry out filtration of fine particles, and also to filtrate the treated liquid by dropping moisture on the monkey body group in the upper row, which is injected from the supply port 12.
The dehydrated cake of the desired hardness can be efficiently produced by the sarcophagus work by the mackerel movement that repeats compression and expansion between the upper and lower rows of rod groups, and by the hardness adjustment mechanism of the dehydrated cake generated by this dovetail movement. Can be formed.

Further, since the dehydrated cake of this example is formed by the sloughing motion, the outermost layer of the dehydrated cake becomes a slag-like body of fine particles. This slag solidifies instantly when exposed to outside air, so the dehydrated cake is wrapped in wafer, which works to prevent the odor of the dehydrated cake from coming out. Generally, the conditions for dehydration treatment are as follows:
A sludge with a moisture content of at least 80% and a dehydrated cake with a moisture content of 80% or more are used, but since clogging is unlikely to occur in this embodiment of the apparatus according to the present invention, a dehydrated cake with a moisture content of 60 to 75% is also used. Fully applicable.

As a specific example of this embodiment, the sludge water rate is 98%, the dehydrated cake water content is 70%, the outlet reduction rate is 70%, and the diameter of the oak piece is 1.
00 side, counterfeit rotation speed IRPM, and dehydrated cake thickness 45 Yanagi, approximately 300 kg of dehydrated cake can be produced per hour and approximately 4.5 tons of sludge can be processed per hour.

Furthermore, the separator of this embodiment is easy to maintain since it is easy to clean the pieces of the separator. It should be noted that the present invention is not limited to the above-mentioned embodiments, and modifications can be made without departing from the technical idea of the present invention.

As described above, according to the present invention, it is possible to provide an ant separator that is less likely to be clogged and has a high dewatering ability.

[Brief explanation of the drawing]

Figure 1 shows the sludge treatment facility. . The block diagrams of FIGS. 2 to 9 show the process of the present invention.
FIG. 2 is a front view showing the external appearance, FIG. 3 is a front sectional view, FIG. 4 is a partial side sectional view, and FIG. 5 is a plan sectional view showing an end motion separator according to an embodiment. , FIG. 6 is a side cross-sectional view showing the rotary shaft rotation mechanism, FIG. 7 is a perspective view of the cheek piece, FIG. 8 is a cross-sectional view showing the mounting state of the tooth piece, and FIG. 9 is a side view showing the cleaning liquid inlet system. FIG. DESCRIPTION OF SYMBOLS 1... Monkey tank, 3... Rotating shaft, 4... Transmission mechanism, 8... Inner wall, 9... Outer wall,
DESCRIPTION OF SYMBOLS 11... Processing liquid, 12... Supply port, 13... Discharge pipe, 14... Inner wall, 15... One side wall, 16
. . . Outer wall, 17. Other side wall, 18. Sprocket, 34. Oak piece, 35. Thick wall portion, 36.
...Thin wall part, 37... Monkey foramen, 38... Unit monkey body, 3
9... Internal arrangement, 40... Purified water collection room, 41...
Channel space, 42... Slip movement space, 43... Dehydration cake, 44... Open/close lid, 45... Discharge port, 48... Adjustment lid, 50... Dehydration hole, 54... Washing liquid supply pipe. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 8 Figure 7 Figure 6 Figure 9

Claims (1)

[Claims] 1. A filter tank having a supply port for supplying a liquid to be treated upward;
They are mounted in two rows, upper and lower, with pitches a over the pair of inner walls of the filter tank, approximately horizontally parallel to each other, and furthermore, the upper and lower rows are vertically deviated from each other, and their rotational directions are mutually different. A plurality of rotating shafts that are opposite to each other are fitted and fixed onto the respective rotating shafts, and are attached across the entire inner wall, and the front and back surfaces of adjacent rotating shafts in the same row are reversed when fitted. The central part of one side is raised and has a thin part half the thickness of the central part on the periphery, and the diameter at the center of the thin part is a, which is the same as the pitch a. A filter body group of a unit filter body consisting of a plurality of stepped donut-shaped filter pieces having filter holes at regular intervals on a circle, the rotation shaft and the filter pieces fixed thereto, and the pair of inner walls. a discharge port having an opening/closing lid for discharging the dehydrated cake, which is provided in communication with the end of the peristaltic space formed by the peristaltic space; All of the mutual filter holes located in the middle of the body are configured to communicate with each other, and at least one of the inner walls has a dehydration hole facing the communicating filter hole group and guiding purified water to the outside of the filter tank. A peristaltic separator, wherein the liquid to be treated is further configured to move from an end in the rotational direction of the upper row of filter bodies onto the lower row of filter bodies. 2. The peristaltic separator according to claim 1, wherein the discharge port portion is provided with a movement resistance increasing mechanism that can increase or adjust the movement resistance of the dehydrated cake. 3. The peristaltic separation according to claim 1 or 2, wherein one side wall of the dehydration holes provided in the inner wall is a dehydration hole, and the other side wall is a cleaning liquid supply port for supplying a cleaning liquid for cleaning filter pieces. Machine.