JPH0712556B2 - Muddy water 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 a muddy water treatment device for compressing and dehydrating mud while removing water and mud from mud.

[0002]

2. Description of the Related Art In the production of crushed sand used as aggregate for concrete, crushed sand obtained by appropriately crushing raw sand such as mountain gravel, sea gravel, land gravel, and crushed stone is washed with water. The process of taking out the crushed sand (hydrated crushed sand) is performed. In this step, the water in the aquarium after taking out the hydrous crushed sand becomes muddy water.

Conventionally, the treatment of the muddy water thus generated is conventionally performed by the following method. That is, the muddy water in the water tank is transferred to a large capacity tank, and chemicals such as a coagulant and a precipitation accelerator are added to coagulate and precipitate the mud matter in the muddy water. The mud that solidifies in this way is a fluid that contains a lot of water, so once it has been stored in a storage tank with a pump, the mud that has settled in the storage tank is pumped up in the state of muddy water and then pressed by a press-type compression device. Compress and dehydrate using.

A conventional press type compression apparatus used for such muddy water treatment is shown in principle in FIG. In the compression device of the same figure, two cloth-like sheets 81 are attached to both sides of a large diameter ring 82 and a small diameter ring 83 arranged coaxially to form one filter 80, and the filters 80 are moved between each other. It is arranged in multiple rows so as to be possible. And a large-diameter ring 82 of each filter 80 ... 80
… With those 82 abutting, those filters 80…
The muddy water drawn by the pump P into the spaces S ...
After being supplied through 3a, the mud is compressed between the cloth-like sheets 81, 81 of the filters 80, 80 adjacent to each other by pressing from the direction indicated by the arrow a. The water that has passed through the filter 81 is discharged through the internal space 80a of each filter 80, and at the time when the water content of the mud in the space S reaches a predetermined value (for example, 35%), the arrows in FIG. As shown in b, the dehydrated mud matter G is removed by sequentially separating the filter 80.

[0005]

As is clear from the above description, the conventional compression device separates water and mud from mud by batch operation and compresses and dewaters mud to remove it. Therefore, there is a problem in that there are many restrictions that hinder the improvement in processing efficiency.
That is, conventionally, a step of precipitating mud in a large-capacity tank using a chemical, a step of temporarily pumping the precipitated mud as mud into a storage tank, and a mud in the storage tank A total of four steps are required: a step of pumping the oil with a pump and supplying it to a compression device to press it, and a step of blowing off the mud from the compression device after the pressing is completed.Therefore, it is not possible to perform these four steps in a timely and smooth manner. It's extremely difficult. Further, since the above-described compression device is one in which a large number of filters are arranged in parallel, the structure becomes complicated and the size is inevitably increased, and the cost required for processing becomes enormous, and further, Since it is a batch type operation, time is wasted and the processing efficiency is extremely deteriorated.

The present invention has been made in view of the above problems, and it is possible to continuously perform the steps of separating water and mud from mud and compressing and dewatering only mud. By providing such a device, it is a technical object to dramatically improve the processing efficiency and to simplify the device and reduce the cost.

[0007]

[MEANS FOR SOLVING THE PROBLEMS] The muddy water treatment apparatus according to the present invention is characterized in that it has the following constitution in order to achieve the above technical problems. That is, a pair of side plates located on opposite sides are inclined to form a downward constriction, and a housing also serving as a mud water storage container provided with a muddy water supply port and a drain port at the top, and a narrow space formed at the bottom of the housing are provided. A swing member having a horizontal axis penetrating the swing axis as a swing fulcrum and a mesh body stretched over a frame body extending upward from the horizontal axis; and a swing member partitioning a narrow space below the swing member. A partition plate facing each other, a mud discharge port formed in the vicinity of the narrow space and communicating with the narrow space, a forced mud discharge mechanism including a screw conveyor reaching the mud discharge port, and a side plate of the housing. Detecting means for detecting the compressed state of the mud matter compressed between the moving member, and control means for controlling the operation of the forced mud discharge mechanism based on the signal from the detecting means, and further, Drive the partition plate through the sprocket at one end. Is connected to the source and the other end provided to support the rotary shaft connecting the electromagnetic brake, it is intended to provide a rotation stopper on the inner surface of the hanging plate to continuously provided to the lower end portions of the pair of side plates of the housing.

[0008]

In the muddy water treatment apparatus of this structure, muddy water is continuously or intermittently supplied to the housing from the muddy water supply port so that a predetermined amount of muddy water is stored in the housing. The sludge discharge port formed in the vicinity of the narrow space of the housing is closed at the initial stage of operation so that muddy water does not flow out from the discharge port. The mesh-like body stretched over the frame of the swinging member cooperates with the side plate on one side of the housing to compress the mud-like substance while swinging to one side while allowing the flow of water, and the other side. When swinging to the side, the mud matter is compressed in cooperation with the side plate on the other side of the housing. That is, when the rocking member approaches the side plate of the housing, water passes through the mesh of the mesh body, which promotes the separation of the water and the mud matter. And is compressed between the side plate.

Further, since the pair of side plates of the housing are inclined in a downwardly constricted manner, the mud-like substance caused by one rotation of the swinging member is earlier in the lower layer portion near the narrow space of the housing. It will be compressed, and the upper layers will be compressed later. Moreover, due to the accumulation of mud that accompanies repeated rocking of the rocking member, the mud that has accumulated in the lower layer is pushed downward and pushed into the narrow space, where water It becomes a compacted mud with poor permeability, and at this point the mud discharge port is opened. On the other hand, the water separated from the mud matter is discharged to the outside from the drain port of the housing while increasing its volume. In this manner, the muddy water treatment is efficiently performed by continuously supplying the muddy water to the housing, repeating the reciprocating rocking of the rocking member, and operating the forced mud discharge mechanism.

The above-mentioned forced mud discharge mechanism is composed of a screw conveyor, and it is possible to reliably and continuously discharge the mud-like material only by applying a rotational force to the screw conveyor by a motor or the like. Further, by providing the detection means for detecting the compressed state of the mud and the control means for controlling the forced mud discharge mechanism based on the signal from this detection means, the degree of compression of the mud becomes insufficient. When it is operating, the forced mud removal mechanism is stopped and the forced mud removal mechanism is started automatically when the degree of compression becomes sufficient. It is also possible to adjust according to the degree of compression of the material. In addition, a partition plate located below the swing member and facing the swing member has a rotating shaft having one end connected to a drive source via a sprocket and the other end connected to an electromagnetic brake. When the mud matter that is supported and repeatedly rocked by the rocking member is pushed downward and pushed into the narrow space, the partition plate rotates in the forward and reverse directions by the drive source. However, at a position reaching the rotation stop provided on the inner surface of the hanging plate connected to the lower ends of the pair of side plates of the housing, the so-called siphon effect is temporarily interrupted each time it is stopped by the electromagnetic brake, The mud will be compressed again.

[0011]

1 and 2 are perspective views showing the entire construction of a muddy water treatment apparatus A in a first embodiment of the present invention. In the figure, reference numeral 1 denotes a housing having an open upper portion, and a pair of side plates 2 and 3 of the housing 1 are inclined downwardly. A drain port 4 is provided on one side of the upper part of the housing 1.
And a muddy water supply port 5 is formed on the other upper side of the housing 1. Then, the muddy water is fed into the housing from the tubular body 5a having an open end through the muddy water supply port 5. In this case, the arrangement positions of the muddy water supply port 5 and the drainage port 4 are not limited to those shown in the figure, but it is important to make the distance between the muddy water supply port 5 and the drainage port 4 as long as possible. This is preferable in order to increase the degree of compression of the substance. Further, the swing member 6 is housed in the inner space of the housing 1, and the narrow space 7 below the swing member 6 is divided into two chambers by a partition plate 8. The cylindrical bodies 9 and 9 that respectively communicate with each other are projectingly provided at the lower end portion of the back plate 1a on one side of the housing 1, and the lower end opening of the downward projecting small cylindrical body 9a formed at the distal end portion of the cylindrical body 9 The part is a mud discharge port 10
(In FIG. 1, one projecting small tubular body 9a and the mud discharge port 10 are omitted). Then, it penetrates the bottom portion of the housing 1 and one end reaches the sludge discharge port 10 inside the cylindrical body 9,
Forced mud discharge mechanisms 11 each of which is a screw conveyor having the other end protruding from the housing 1 are rotatably held. The forced sludge removal mechanism 11 is provided with rotation of a drive device 12 such as an electric motor.

The swing member 6 includes a frame body 13 and a mesh body 1.
4 and. Specifically, the frame 1
3 is formed by rigidly framing the rod, and the net-like body 14 has mountain-shaped convex portions 15 and valley-shaped concave portions 16 alternately, and the direction of repetition of these convex portions 15 and concave portions 16 (arrow mark). X) is attached to the frame body 13 in a form of vertical direction. Such a swing member 6 has a lower end portion 6
a is swingably supported via a horizontal shaft 17 that penetrates the central portion of the narrow space 7 at the bottom of the housing 1. Therefore, the horizontal axis 17 functions as the swing fulcrum P of the swing member 6. The tip of the piston rod 101 of the fluid cylinder 100 is rotatably connected to the upper end of the frame 13 of the swinging member 6, and the base end of the cylinder tube 102 of the fluid cylinder 100 is pivoted to the mount 103. It is freely connected. An air cylinder, a hydraulic cylinder, or the like is used as the fluid cylinder 100.

Further, the net-like body 14 of the swing member 6 is used.
A plurality of elastic pieces 18 ... 18 made of strips of rubber or the like having excellent wear resistance and flexibility are fixed to the portions corresponding to the convex portions 15 and the concave portions 16. The elastic piece 18 is provided with elasticity which is exhibited by the material property of itself, and can be obtained by the shape property by forming the shape in a meandering shape or by another method. It is possible to provide elasticity.

Further, the net-like body 14 in the swing member 6
15a of the plurality of convex portions 15 ... 15 of FIG.
As shown by the solid line in FIG. 3, when the frame body 13 is set in a position parallel to the side plate 2 on one side of the housing 1, the frame body 13 is arranged substantially vertically in the central portion of the housing 1, while the phantom line in FIG. When the frame body 13 is set at the center position of the housing 1 as shown by, the distance between the frame body 13 and the side plate 3 on the other side of the housing 1 is substantially the same on each of the ridge lines 15a ... 15a. Further, the inclination angle of the pair of side plates 2 and 3 of the housing 1 is such that the mud substances accumulated on the inner surfaces of the side plates 2 and 3 are likely to slide downward, that is, the angle at which natural fall is possible (for example, from the horizontal line). The elevation angle is 75 degrees).

On the other hand, as shown in FIG. 3, the bottom of the housing 1 has a narrow space 7 formed by hanging plates 2a and 3a which are vertically connected to the lower ends of a pair of downwardly constricted side plates 2 and 3, respectively. A sludge discharge passage is communicated with the inside thereof, and the sludge discharge passage is formed by the partition plate 8 into two branch sludge discharge passages 19a,
It is divided into 19b. The two branched sludge discharge passages 19a and 19b and the two sludge discharge ports 10 and 10 are in communication with each other through the cylinders 9 and 9, respectively.

Further, the one side plate 2 and the other side plate 3 of the housing 1 are provided with a detecting means 20 for detecting the compressed state of the mud matter G accumulated on the inner surfaces of the side plates 2 and 3, respectively.
20 is provided, and the start and stop of the drive devices 12, 12 of the forced sludge removal mechanisms 11, 11 are controlled via the control means 21, 21 based on the detection signals of the detection means 20, 20. As the detection means 20 for detecting the compressed state of the mud matter G, various sensors such as a pressure sensor for detecting the compression pressure of the mud matter G, a water content detection sensor for detecting the water content of the mud matter G, and the like. Can be used. The detecting means 20 may be installed at the convex portion 15 or the concave portion 16 of the swinging member 6 as shown in FIG. 3, and the number of the installing means is not limited. Further, the number of the control means 21 is not limited to the example shown in the figure, and for example, a single control means 21 is provided.
It is also possible to configure so as to control the two drive devices 12, 12.

In the muddy water treatment apparatus A having the above structure, muddy water is supplied into the housing 1 from the muddy water supply port 5 through the tubular body 5a. The supply of muddy water to the housing 1 is
The housing 1 is made continuously or intermittently so that an appropriate amount of muddy water is always stored. Therefore, the housing 1 exhibits a function as a muddy water storage container. At the initial stage of operation, the mud discharge port 10 of the housing 1 is designed so that the muddy water supplied to the housing 1 does not flow out,
Therefore, the forced mud discharge mechanism 11 is also in a stopped state.

In a state where a predetermined amount of muddy water is stored in the housing 1, the piston rod 101 of the fluid cylinder 100 repeats a projecting motion and a retracting motion at a predetermined cycle, so that the rocking member 6 is shown by a solid line in FIG. The side plate 2 on one side and the side plate 3 on the other side shown in phantom in the figure are repeatedly reciprocally rocked as indicated by an arrow Y. The reciprocating drive source is not limited to the above fluid cylinder.
For example, it is possible to use a cam mechanism that converts the rotation of the motor into a reciprocating motion.

A plurality of convex portions 15 of the mesh body 14 of the swing member 6.
15 serves to form the compression chambers R1 ... R1 of the mud in cooperation with the side plate 2 when the swinging member 6 is rotated to the side plate 2 on one side, and the recessed portion of the mesh body 14 is provided. 16 is a side plate 3 when the swinging member 6 is rotated to the side plate 3 on the other side.
Help to form the mud compression chambers R2 ... R2.

Therefore, the housing 1 storing the muddy water
When the swinging member 6 is rotated in the direction Y1 about the swinging fulcrum P in the direction Y1 approaching the side plate 2 on one side, as the swinging member 6 approaches the side plate 2 on one side, the compression chambers R1 ... R1.
Gradually decreases and the compression of the mud matter G in the compression chambers R1 ... R1 is started, and the water passes through the mesh of the mesh body 14 and is discharged to the outside of the compression chambers R1 ... R1. It Further, when the swinging member 6 approaches the side plate 2 on one side, a plurality of elastic partitions 18 ... 18 provided at positions corresponding to the recesses 16 ... The compression chambers R1 ... R1 are vertically partitioned by elastically contacting the inner surface of the side plate 2. Further, in each of the compression chambers R1 ... R1, the mud matter G trapped in the lower compression chamber R1 is compressed first, and then the mud matter G trapped in the upper compression chamber R1.
Will be compressed later.

The above compression process is also performed when the swing member 6 is rotated about the swing fulcrum P in the direction of approaching the side plate 3 on the other side. That is, when the swinging member 6 is rotated in a direction approaching the side plate 3 on the other side, the recesses 16 ... 16 of the net-like body 14 cooperate with the side plate 3 to move the compression chambers R2 ... R2 of the mud G. To help form, and their compression chambers R2 gradually decrease in volume
The compression of the mud matter G in 2 ... R2 is started, and water passes through the mesh of the mesh body 14 and is discharged to the outside of the compression chambers R2 ... R2. Further, when the swinging member 6 approaches the side plate 3 on the other side, a plurality of elastic partitions 18 ... 18 provided at locations corresponding to the convex portions 15 ... The compression chambers R2 ... R2 are vertically partitioned by elastically contacting the inner surface of the side plate 2 on the other side. In each compression chamber R2 ... R2, the mud-like material G trapped in the lower compression chamber R2
Is compressed first, and the mud matter G trapped in the upper compression chamber R1 is compressed later.

When the rocking member 6 is repeatedly rocked back and forth in this manner, the mud-like material G is accompanied by the mud-like material G on one side plate 2.
On the inner surface of the side plate 3 and the inner surface of the side plate 3 on the other side, the dewatered mud matter G is pushed downward and pushed into the narrow space 7, as such deposition progresses,
In the narrow space 7, the water has a poor permeability and is in a compacted state. In other words, once compressed, water will not enter. The compacted mud matter G compressed on the side plate 2 side on one side is accumulated in the discharged mud passage 19a on one side, and the compacted mud matter G compressed on the side plate 3 side on the other side is the other side. Are accumulated in the sludge discharge passage 19b. This way the mud G
After each of the mud discharge passages 19a and 19b has become consolidated, the corresponding mud discharge port 10 is opened to force the mud discharge mechanism 1
1 is performed, the rocking member 6 is repeatedly reciprocally rocked, and muddy water is supplied to the housing 1, so that the dehydrated mud matter G is discharged by the forced mud discharge mechanism 11 and the inside of the housing 1 is discharged. The compression / accumulation of the mud matter G in step 1 and the drainage from the drainage port 4 of the housing 1 are continuously performed.

In this case, the compression pressure of the mud matter G compressed in the predetermined compression chamber R1 formed by the side plate 2 on one side and the convex portion 15 of the net-like body 14 is detected by the detection means 20 and the other. Mud G in a predetermined compression chamber R2 formed by the side plate 3 on the side and the concave portion 16 of the net-like body 14.
Similarly, the compression pressure is detected by the detecting means 20. In this way, the compression pressure is detected separately on the side plate 2 side on one side and the side plate 3 side on the other side, because the shape of the swinging member 6 in this embodiment is not symmetrical between the one side and the other side. Therefore, the compression pressure is not the same for both sides. Then, when the pressure detected by each of the detection means 20 reaches a predetermined value or more, each drive device 12 is activated via the control means 21, and when the detected pressure falls below the predetermined value, the control means 21 is operated. Individual drive 1
If 2 is stopped, the situation in which the mud matter G in the individual mud discharge passages 19a and 19b in the narrow space 7 is surely prevented from flowing out from the mud discharge port 10 in a non-consolidated state To help you. That is, the detection means 20
The signal detected by the control makes it possible to control the start-up and stop operations of the forced sludge removal mechanism 11 which is interlocked with the swinging member 6, so that the so-called siphon effect is prevented and the outflow in an insufficiently compressed state is avoided, which is optimal. It is possible to discharge the muddy material G having a high compression density.

According to the experiment, when a pressure sensor is used as the detecting means 20, the detected pressure value is 10
If it exceeds 0 gf / cm2, the water content of the mud G is 35%.
Was confirmed. Therefore, regarding the activation and deactivation of each drive device 12, when the pressure value detected by the detection means 20 becomes 100 gf / cm 2 or more, the drive device 12 is activated via the control means 21, and the detected pressure is 100 gf / cm 2. Control means 2 when it falls below cm2
If the drive device 12 is stopped via the device 1, the mud matter G dehydrated to the same extent as the conventional batch type mud water treatment device described at the beginning can be obtained.

FIG. 4 is an explanatory view of a usage state in which the muddy water treatment device A is used for treating muddy water generated in a crushed sand manufacturing process as an aggregate for concrete. In the figure, 40 is a water tank used in the above-mentioned crushed sand manufacturing process, and muddy water overflowed from a partition wall 41 in this water tank 40 as indicated by an arrow L1 passes through a muddy water line 43 by an underwater pump 42. A predetermined amount of a chemical M such as a coagulant is added to the muddy water which is fed to the temporary storage tank 44 and overflows from the temporary storage tank 44 to the passage 45 as indicated by an arrow L2. The muddy water that has flowed into the stirring tank 46 from is stirred by the stirrer 47, and then flows into the housing 1 from the above-mentioned tubular body 5 a through the muddy water supply port 5 provided in the housing 1 of the muddy water treatment apparatus A. It is supposed to do.

The muddy water supplied to the muddy water treatment device A as shown in FIG. 4 contains mud flocs having a particle diameter of about 2 mm due to the addition of the chemical M. The mud water containing such mud flocs is muddy water treated. By performing the above-mentioned processing in the apparatus A, it is possible to efficiently perform continuous processing. Further, the size of the mesh of the mesh body 14 is not particularly limited, but in this embodiment, the mesh size is about 3 to 4 mm, preferably about 3.5 mm. If so, it can pass through the mesh of the mesh body 14, but since the mud flocs are in a state of being collected in the mud water,
It is possible to satisfactorily perform compression by the net-like body 14, and rather, by setting the mesh size to be slightly larger than the particle size of the mud flocs, the flocs generated by the chemicals will not collapse, and The advantage can be maintained. It should be noted that although some of the mud flocs pass through the mesh of the net body 14, the mud flocs that have passed through are subjected to a compression action between the net body 14 and the side plate on the other side when swinging to the other side. So there will be no problems.

By the way, since the muddy material G in the muddy water is highly fluid, if the rocking member 6 is not composed of the mesh body 14 but is, for example, a flat plate, it can be moved at high speed. When reciprocally rocked, the mud matter G flows out from between the mesh body 14 and the side plates 2 and 3 on one side or the other side toward the upper side. However, the rocking member 6 is composed of the mesh body 14, and the mesh body 14 has the convex portions 15 ... 15 and the concave portions 16 ... 16, and the convex portions 15 ... 15 and the concave portions 16 ... 16 thereof. Is each elastic piece 1
Since the compression chambers R1 ... R1, R2 ... R2 are defined together with the side plates 2 and 3 on one side or the other side together with 8 ... 18, the mesh body 14 and the side plate on one side or the other side. A situation in which the mud matter G flows out from between 2 and 3 upward is surely avoided. Therefore, in the muddy water treatment device A, it is possible to improve the treatment efficiency by increasing the reciprocating swing speed of the swing member 6 to some extent.

In the first embodiment, the narrow space 7 below the inside of the housing 1 is divided into two chambers by the partition plate 8, and the two chambers are forcedly sludge-driving mechanisms 11 and 11, respectively.
However, instead of this, the partition plate 8 may be eliminated and a single forced mud discharge mechanism 11 may be arranged in the narrow space 7, or as shown below. You may make it employ | adopt a structure. That is, as shown in the second embodiment of FIGS. 5 to 7, the partition plate 22 is arranged so that the space below the partition plate 8 for partitioning the narrow space 7 of the housing 1 is orthogonal to the partition plate 8. 22 is divided into a plurality of chambers, and a forced sludge removal mechanism 11 ... 11 that can be independently driven and stopped is disposed in each of the plurality of chambers. Then, pressure sensors 20 ... 20 are attached at a plurality of locations in correspondence with these forced sludge dewatering mechanisms 11 ... 11, and the individual pressure sensors 20 are configured to control the individual forced sludge dewatering mechanisms 11. With such a configuration, when the size from the muddy water supply port 5 to the drainage port 4 is long, the rocking member 6 uniformly compresses the muddy water supply port 5 and the drainage port 4 in the vicinity thereof. However, since the forced dewatering mechanisms 11 are driven and stopped based on the signals from the individual pressure sensors 20, all the dewatering ports 10 ... It is possible to always take out the mud material G having the same compression degree (water content). Further, the structure of the third embodiment as shown in FIG.
The sludge discharge port 10 provided at the end is removed, and the end of the cylindrical body 9 is curved upward to be molded. The mud G is pushed up as the forced sludge discharge mechanism 11 rotates. As a result, the mud-like material G can be moved to the required discharge location.

Furthermore, in the structure of the fourth embodiment shown in FIGS. 9 to 11, the abutment member 23 made of an elastic member such as rubber is provided in the longitudinal direction of the end of the partition plate 8 and the partition is provided. The plate 8 is positioned below the horizontal shaft 17 and a rotary shaft 28, which penetrates the central portion of the narrow space 7 like the horizontal shaft 17, is provided with a gap in the horizontal shaft 17 via a connecting member 24 such as rubber. In addition to holding, one end of the rotary shaft 28 is connected to the drive source 26 via the sprocket 25, and the other end is connected to the electromagnetic brake 27. In addition, the pair of side plates 2 of the housing 1
On the inner surfaces of the hanging plates 2a, 3a connected to the lower end of 3,
The rotation stop 29 with which the contact member 23 contacts is provided. The drive source 26 in this configuration may be an electric motor or a hydraulic type, and a rotation stop 29
The spherical iron may be provided on the inner surfaces of the hanging plates 2a and 3a, or a long member may be provided on the inner surfaces in the longitudinal direction. According to the above configuration, as shown by the arrow Z in FIG. 9, the partition plate 8 is given rotation in the forward and reverse directions by the drive source 26, and the mud compressed by the rocking member 6 that repeatedly rocks. Each time the partition G is stopped by the electromagnetic brake 27 at the position where it reaches the rotation stop 29 when the object G is pushed downward and pushed into the narrow space 7, it is formed with the swinging member 6 as a boundary. The insides of both sides of the housing 1 are closed by the partition plates 8, the so-called siphon effect is temporarily blocked, the degree of compression is increased, and the mud G is compressed again.

[0030]

As described above, according to the muddy water treatment apparatus of the present invention, the housing is formed in a downward constricted shape, and
Since the rocking member having the rocking fulcrum at the bottom of the housing is constructed by stretching the mesh body on the frame, when the rocking member is rocked to one side, the rocking member cooperates with the side plate on one side of the housing. The compact is compressed, and when swinging to the other side, it cooperates with the side plate on the other side of the housing to compress the sludge, and the compression action is performed at two locations on both sides of the housing, thus improving work efficiency. In addition, when the swinging member approaches the side plate of the housing, water passes through the mesh of the mesh body, which promotes the separation of water and mud, and the compression action is mud-like. It is preferably performed on a collection of objects. In addition, since the pair of side plates of the housing are inclined downwardly, the mud matter is compressed first in the lower layer portion near the narrow space of the housing and later in the upper layer portion. In addition, the muddy material accumulated in the lower layer is pushed downward due to the accumulation of the muddy material caused by the repeated rocking of the rocking member. Mud is discharged by the operation of the forced mud discharge mechanism. Further, by rotating the partition plate that partitions the narrow space in the forward and reverse directions, the downward movement of the mud is blocked, and the mud is compressed by the swinging member as described above, and the mud is re-entered. Can be used to compress.

Then, by continuously operating the forced mud discharge mechanism, repeating the reciprocating rocking motion of the rocking member, and supplying muddy water to the housing, the mud matter dehydrated by the forced mud discharge mechanism is continuously supplied. Is continuously discharged, the mud is compressed and accumulated in the housing, and the drainage from the water drain port of the housing is continuously performed, so that the mud water treatment efficiency is significantly improved. That is, it is not necessary to separately perform the four steps as in the conventional case, and further, it is not necessary to perform the batch-type operation, the working man-hour is reduced, and the waste of time is avoided.

Further, as compared with the conventional compression device as shown in FIGS. 12 and 13, the device can be downsized and the manufacturing cost can be reduced, which can greatly contribute to the improvement of mass productivity. .

[Brief description of drawings]

FIG. 1 is a perspective view showing an appearance of a muddy water treatment device according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing an internal structure of the muddy water treatment device according to the first embodiment of the present invention.

FIG. 3 is a schematic vertical sectional front view showing the operation of the muddy water treatment device according to the first embodiment of the present invention.

FIG. 4 is an explanatory view of a usage state in which the muddy water treatment device according to the first embodiment of the present invention is used for treating muddy water generated in a crushed sand manufacturing process as an aggregate for concrete.

FIG. 5 is a perspective view showing an appearance of a muddy water treatment device according to a second embodiment of the present invention.

FIG. 6 is a vertical sectional front view of an essential part showing the internal structure of the muddy water treatment apparatus according to the second embodiment of the present invention.

FIG. 7 is a vertical cross-sectional side view of essential parts showing an internal structure of a muddy water treatment device according to a second embodiment of the present invention.

FIG. 8 is a vertical cross-sectional side view of essential parts showing the internal structure of a muddy water treatment device according to a third embodiment of the present invention.

FIG. 9 is a vertical cross-sectional side view of essential parts showing the internal structure of a muddy water treatment device according to a fourth embodiment of the present invention.

FIG. 10 is an enlarged vertical cross-sectional side view of essential parts showing the internal structure of the muddy water treatment device according to the fourth embodiment of the present invention.

FIG. 11 is a vertical cross-sectional front view of essential parts showing the internal structure of a muddy water treatment device according to a fourth embodiment of the present invention.

FIG. 12 is a schematic front view showing the configuration of a conventional batch type mud water treatment device.

FIG. 13 is a schematic front view showing the operation of a conventional batch type muddy water treatment device.

[Explanation of symbols]

 A Muddy water treatment device 1 Housing 2 Side plate on one side 3 Side plates on the other side 2a, 3a Hanging plate 4 Drain port 5 Muddy water supply port 6 Swing member P Swing fulcrum 7 Narrow space 8 Partition plate 10 Drainage port 11 Forced sludge drainage Mechanism 13 Frame body 14 Net body 17 Horizontal axis 20 Detection means 21 Control means 25 Sprocket 26 Drive source 27 Electromagnetic brake 28 Rotation shaft 29 Rotation stop G Mud

Claims (3)

[Claims] 1. A housing also serving as a muddy water storage container, wherein a pair of side plates located on opposite sides are inclined in a downward constricted manner and provided with a muddy water supply port and a drain port at the top, and a housing formed at the bottom of the housing. A swing member having a horizontal axis penetrating the narrow space as a swing fulcrum and a mesh body stretched over a frame extending upward from the horizontal axis, and a narrow space is partitioned below the swing member. A partition plate facing the swinging member, a sludge discharge port formed in the vicinity of the narrow space and communicating with the narrow space, a forced sludge removal mechanism including a screw conveyor reaching the sludge port, and a housing A detection means for detecting the compression state of the mud matter compressed between the side plate and the swinging member; and a control means for controlling the operation of the forced mud discharge mechanism based on a signal from the detection means. A muddy water treatment device characterized by that. 2. The muddy water treatment device according to claim 1, wherein the partition plate is supported by a rotary shaft having one end connected to a drive source via a sprocket and the other end connected to an electromagnetic brake. apparatus. 3. The muddy water treatment device according to claim 1, wherein a rotation stop is provided on an inner surface of a hanging plate connected to lower ends of the pair of side plates of the housing.