Solid-liquid separation apparatus and solid-liquid separation method

Abstract

To provide a solid-liquid separation apparatus that can significantly improve the recovery of solids while performing solid-liquid separation normally. [Solution] A solid-liquid separation device 60 comprising a fixed plate group, a movable plate group, and a driving means 9, wherein a filtration unit 8 transports solid matter by parallel motion while allowing moisture from the object to be processed to fall through the gaps between the plate groups, the filtration unit 8 taking the first and third modes in which the overlap amount of each plate group is smallest and the second and fourth modes in which the overlap amount of each plate group is largest, a supply means 61 for supplying the object to be processed to the filtration unit 8, an upper limit detection means 62 for detecting the upper limit position of the object to be processed, a lower limit detection means 63 for detecting the lower limit position of the object to be processed, and a control means 65.

Description

Technical Field

[0001] The present invention relates to a solid-liquid separation device for separating solids and moisture contained in a liquid treatment target such as livestock wastewater generated from livestock manure, oily wastewater generated from wastewater treatment in food factories, etc., and wastewater generated from various sites such as metal processing, plating, construction, meat processing, bento manufacturing, etc., and a solid-liquid separation method using this solid-liquid separation device. 置、及びこの固液分離装置を用いた固液分離方法に関する。

Background Art

[0002] Conventionally, as a solid-liquid separation device for treating wastewater from food factories, for example, wastewater containing cuttings of meat, fish, vegetables, etc., an edge wire type screen is known, which is formed by arranging triangular prism wires horizontally side by side to form a wide plate shape, and this plate-shaped object is inclined and arranged to pour wastewater from above to below for solid-liquid separation. また、ステンレス製の微細な網目を備えた板を円筒状に形成し、内側に配置したスパイ ラル状の板の端部から排水を投入して円筒状のドラムを回転させることで、網目から水分 を落下させつつスパイラル状の板で固形物を反対方向へと送り出すドラム式スクリーンが 知られている。 また、ステンレス製の微細な網目を備えた板を円筒状に形成し、内側に配置したスパイ ラル状の板の端部から排水を投入して円筒状のドラムを回転させることで、網目から水分 を落下させつつスパイラル状の板で固形物を反対方向へと送り出すドラム式スクリーンが

[0003] 一方、本願出願人は「特許文献1」に記載されたプレート平行運動式スクリーンを提案 している。これは、2組の板状部材を所定のギャップで交互に配列した濾過部を排水の入 口側から出口側に向けて僅かな上り傾斜となるように配置し、所定のギャップから水分を<管理番号を指定してください。落下させつつ1組の板状部材を常時平行運動させて、濾過部の目詰まりを解消しながら固 形物を搬送するものである。

Prior Art Documents

Patent Documents

[0004] [Patent Document 1] Patent No. 7261520 [Overview of the Initiative] [Problems that the invention aims to solve]

[0005] These screens are placed in each of the aforementioned locations, but requests have been received from each location. Therefore, improvement in the recovery of solids in each screen is desired. Wedge wire screen To improve the recovery of solids in the wire, the spacing between each wire should be narrowed to make it finer. One method is to recover solid material. Another is to recover solid material using a drum-type screen. To improve efficiency, one method is to narrow the mesh spacing to collect finer solid particles. However, with either method, clogging is likely to occur, making it difficult to perform solid-liquid separation properly. There is a problem in that it becomes impossible to do so.

[0006] On the other hand, in the case of a plate parallel motion screen, the plate-shaped member is constantly in operation. There is no concern about clogging, but adjusting the gap will hinder the parallel movement of the plate-shaped members. Because of the risk, it cannot be done easily, and it is not possible to improve the recovery of solids by mechanical adjustment. It was not possible. In the invention described in "Patent Document 1", the parallel motion of the plate-shaped member is temporarily stopped. The diagram shows a configuration for filtering the material to be processed, but even with this configuration, the recovery of solid material can be greatly improved. It was difficult to do. This invention is capable of significantly improving the recovery of solids while performing solid-liquid separation properly. One of our objectives is to provide liquid separation equipment.

[0007] In the plate parallel motion screen described above, if a coagulant or other chemical is added to the wastewater... Because even small solids and liquids that pass through a predetermined gap can be solidified and removed, solids This improves the recovery rate. In this way, chemicals are added to the wastewater to remove solid matter. As for the method, PAC (polyaluminum chloride) and a neutralizing agent (pH adjuster) are added to the wastewater. A pressurized flotation device is known that uses sodium chloride and polymer flocculants. In this case, solid material called flocs is formed by adding chemicals to the wastewater, Because the substance has the property of settling in wastewater, separation cannot be performed in this state. Furthermore, this type of general coagulation and precipitation process typically takes about 120 to 180 minutes.

[0008] In a pressurized flotation device, the flocs are floated to the surface in order to be recovered, that is, flotation It is necessary to provide buoyancy to the rock, but conventional pressurized flotation devices operate a pressure pump. This process generates tiny bubbles, which are then trapped by the flocs, causing them to float to the surface. The time required for this flotation separation is 30 to 60 minutes, and together with the coagulation and sedimentation described above, Conventional pressurized flotation devices have the problem of long processing times. Also, pressurized flotation devices require pressurization. Pump units and other related equipment require a corresponding amount of land and electricity, and there are many related devices. As a result, maintaining performance becomes difficult, and specialized knowledge is required for maintenance. There is a problem with this. The present invention relates to a solid-liquid separation apparatus that recovers solid matter by introducing a chemical agent, and is suitable for large sites and large To recover solid waste in a short processing time without requiring electricity or specialized knowledge. Another objective is to provide a solid-liquid separation apparatus capable of this. [Means for solving the problem]

[0009] The invention according to claim 1 is configured such that a plurality of plates are arranged at regular intervals in the thickness direction and integrally formed fixed-side plate group, and a plurality of other plates different from the plurality of plates constituting the fixed-side plate group are arranged at regular intervals in the thickness direction and integrally formed movable-side plate group, and driving means for moving the movable-side plate group in parallel, and the plurality of plates of the fixed-side plate group and the plurality of other plates of the movable-side plate group enter each other's intervals to form a gap between the plurality of plates of the fixed-side plate group and the plurality of other plates of the movable-side plate group described above, and the moisture of the treatment object, which is a liquid supplied above the fixed-side plate group and the movable-side plate group, is allowed to fall from the above-mentioned gap, and the solid matter generated by the falling of the moisture from the treatment object is conveyed toward the downstream side in the conveyance direction by the parallel movement, and a filtration unit is provided. In the parallel movement, the filtration unit has a first aspect in which the movable-side plate group occupies the lowest position with respect to the fixed-side plate group, a second aspect in which the movable-side plate group occupies the position where the overlapping amount is the largest with respect to the fixed-side plate group, a third aspect in which the movable-side plate group occupies the highest position with respect to the fixed-side plate group, and a fourth aspect in which the movable-side plate group occupies the same position as the second aspect where the overlapping amount is the largest with respect to the fixed-side plate group. The solid-liquid separation device is configured such that the movable-side plate group is continuously displaced so as to take these aspects, and the filtration unit has supply means for supplying the treatment object, upper limit detection means for detecting the upper limit position of the treatment object in the filtration unit, and lower limit detection means for detecting the lower limit position of the treatment object in the filtration unit The plurality of plates of the fixed-side plate group and the plurality of other plates of the movable-side plate group described above form a gap, and the moisture of the treatment object, which is a liquid supplied above the fixed-side plate group and the movable-side plate group, is allowed to fall from the gap, and the solid matter generated by the falling of the moisture from the treatment object is conveyed toward the downstream side in the conveyance direction by the parallel movement, and a filtration unit is provided. In the parallel movement, the filtration unit has a first aspect in which the movable-side plate group occupies the lowest position with respect to the fixed-side plate group, a second aspect in which the movable-side plate group occupies the position where the overlapping amount is the largest with respect to the fixed-side plate group, a third aspect in which the movable-side plate group occupies the highest position with respect to the fixed-side plate group, and a fourth aspect in which the movable-side plate group occupies the same position as the second aspect where the overlapping amount is the largest with respect to the fixed-side plate group. The solid-liquid separation device is configured such that the movable-side plate group is continuously displaced so as to take these aspects, and the filtration unit has supply means for supplying the treatment object, upper limit detection means for detecting the upper limit position of the treatment object in the filtration unit, and lower limit detection means for detecting the lower limit position of the treatment object in the filtration unit In the parallel movement, the filtration unit has a first aspect in which the movable-side plate group occupies the lowest position with respect to the fixed-side plate group, a second aspect in which the movable-side plate group occupies the position where the overlapping amount is the largest with respect to the fixed-side plate group, a third aspect in which the movable-side plate group occupies the highest position with respect to the fixed-side plate group, and a fourth aspect in which the movable-side plate group occupies the same position as the second aspect where the overlapping amount is the largest with respect to the fixed-side plate group. The solid-liquid separation device is configured such that the movable-side plate group is continuously displaced so as to take these aspects, and the filtration unit has supply means for supplying the treatment object, upper limit detection means for detecting the upper limit position of the treatment object in the filtration unit, and lower limit detection means for detecting the lower limit position of the treatment object in the filtration unit In the parallel movement, the filtration unit has a first aspect in which the movable-side plate group occupies the lowest position with respect to the fixed-side plate group, a second aspect in which the movable-side plate group occupies the position where the overlapping amount is the largest with respect to the fixed-side plate group, a third aspect in which the movable-side plate group occupies the highest position with respect to the fixed-side plate group, and a fourth aspect in which the movable-side plate group occupies the same position as the second aspect where the overlapping amount is the largest with respect to the fixed-side plate group. The solid-liquid separation device is configured such that the movable-side plate group is continuously displaced so as to take these aspects, and the filtration unit has supply means for supplying the treatment object, upper limit detection means for detecting the upper limit position of the treatment object in the filtration unit, and lower limit detection means for detecting the lower limit position of the treatment object in the filtration unit has supply means for supplying the treatment object to the filtration unit, upper limit detection means for detecting the upper limit position of the treatment object in the filtration unit, and lower limit detection means for detecting the lower limit position of the treatment object in the filtration unit has supply means for supplying the treatment object to the filtration unit, upper limit detection means for detecting the upper limit position of the treatment object in the filtration unit, and lower limit detection means for detecting the lower limit position of the treatment object in the filtration unit The detection means and the drive based on the detection results from the upper limit detection means and the lower limit detection means. The system comprises a means and a control means for controlling the operation of the supply means, wherein the control means controls the supply The means is activated and the filtration unit which is stopped in the second or fourth mode When the object to be processed is supplied and the upper limit detection means detects the upper limit position, the supply means operates The movement is stopped, and the moisture of the object to be processed falls from the gap and the lower limit detection means is forward. When the lower limit position is detected, the driving means is activated to move the filtration unit in parallel, and the horizontal The system is characterized by conveying the solid material by a circulating motion. [Effects of the Invention]

[0010] According to the present invention, the amount of solid material deposited on the filtration section can be increased, and solid material can be properly deposited. We can provide a solid-liquid separation apparatus that can significantly improve the recovery of solids while performing liquid separation. ru. [Brief explanation of the drawing]

[0011] [Figure 1] (a) a schematic plan view, (b) a schematic front view, and (c) a schematic side view of a conventional solid-liquid separation apparatus to which one embodiment of the present invention can be applied. [Figure 2] (a) A schematic plan view of the filtration section used in one embodiment of the present invention. (b) A schematic view of each plate constituting the filtration section. [Figure 3] This is a schematic side view of a filtration unit used in one embodiment of the present invention, viewed from the upstream side in the transport direction. [Figure 4] This is a schematic perspective view illustrating a second plate unit, a fixed plate, an eccentric cam bearing, and a housing used in one embodiment of the present invention. [Figure 5] This is a schematic perspective view illustrating a drive force transmission mechanism used in one embodiment of the present invention. [Figure 6]This is a schematic plan view illustrating a plate moving mechanism used in one embodiment of the present invention. [Figure 7] This is a schematic diagram illustrating a position confirmation member used in one embodiment of the present invention. [Figure 8] This is a schematic diagram illustrating the phase relationship between the drive shaft and the eccentric cam used in one embodiment of the present invention. [Figure 9] This is a schematic diagram illustrating the parallel motion of a second plate unit used in one embodiment of the present invention. [Figure 10] This is a schematic diagram illustrating the state of each plate constituting the filtration section used in one embodiment of the present invention during parallel motion. [Figure 11] This is a schematic front view of a solid-liquid separation apparatus according to the first embodiment of the present invention. [Figure 12] This is a schematic front view of a solid-liquid separation apparatus used in one embodiment of the present invention, showing the state in which the raw water supplied to the filtration section has reached its upper limit. [Figure 13] This is a schematic front view of a solid-liquid separation apparatus used in one embodiment of the present invention, showing the state in which the raw water supplied to the filtration section has reached the lower limit. [Figure 14] This is a schematic diagram illustrating a state detection means used in one embodiment of the present invention. [Figure 15] This is a schematic perspective view showing the initial state of the solid-liquid separation apparatus according to the first embodiment of the present invention after the fourth step has been completed. [Figure 16] This is a schematic perspective view showing the solid-liquid separation apparatus according to the first embodiment of the present invention after the first step has been completed. [Figure 17] This is a schematic perspective view showing the solid-liquid separation apparatus according to the first embodiment of the present invention after the second step has been completed. [Figure 18] This is a schematic perspective view showing the solid-liquid separation apparatus according to the first embodiment of the present invention after the third step has been completed. [Figure 19] This is a schematic front view of a solid-liquid separation apparatus according to a second embodiment of the present invention. [Figure 20]This is a schematic perspective view showing the initial state of a solid-liquid separation apparatus according to a second embodiment of the present invention after the completion of the fourth step. [Figure 21] This is a schematic perspective view showing the solid-liquid separation apparatus according to the second embodiment of the present invention after the first step has been completed. [Figure 22] This is a schematic perspective view showing the solid-liquid separation apparatus according to the second embodiment of the present invention after the second step has been completed. [Figure 23] This is a schematic perspective view showing the solid-liquid separation apparatus according to the second embodiment of the present invention after the third step has been completed. [Figure 24] This is a schematic diagram illustrating the raw water treatment process using a conventional pressurized flotation device. [Figure 25] This is a schematic diagram illustrating the raw water treatment process using a solid-liquid separation apparatus according to a second embodiment of the present invention. [Modes for carrying out the invention]

[0012] First, the basic configuration of a solid-liquid separation apparatus to which the present invention can be applied will be described. Figure 1(a) is a schematic plan view of a solid-liquid separation apparatus to which the first embodiment of the present invention can be applied. (b) shows a schematic front view, and Figure 1(c) shows a schematic side view. The solid-liquid separation device 1 consists of a main frame 2, a flow straightening box 3, a raw water return tray 4, and a water level adjustment pipe 5. , water level adjustment gate 6, guide plate 7, filtration unit 8, motor 9, outlet 10, raw water supply pipe 11 It has outlets 12A and 12B, a drain 13, etc. In Figure 1(b), the arrow X indicating the left-right direction represents the length direction of the solid-liquid separation device 1. In Figure 1(b), the arrow Y indicating the depth direction represents the width direction of the solid-liquid separation device 1, and in Figure 1(b), the up and down directions are shown. The arrows Z indicating direction each point in the height direction of the solid-liquid separation device 1. The following describes the direction of the device length. The directions are X (direction), Y (device width), and Z (device height).

[0013] Inside the box-shaped main frame 2 is a rectifier box 3, which is box-shaped on the right side in Figure 1(b). A rectifier is positioned, and a raw water return tray 4 is located further below the bottom of the rectifier box 3. A tubular water level adjustment pipe 5 is fixed to the bottom of box 3, passing through the raw water return tray 4. The upper outer surface of the water level adjustment pipe 5 has an inner circumference that slides against the outer circumference of the water level adjustment pipe 5. A cylindrical water level adjustment gate 6 having the following is attached to the water level adjustment pipe 5 so as to be able to move up and down. The water level adjustment gate 6 has a handle that protrudes outward and upward from the main frame 2. The part 6a is integrally provided, and the vertical movement of the water level adjustment gate 6 is controlled by gripping the handle part 6a. The water level adjustment gate 6 is positioned so that its upper end coincides with the upper end of the water level adjustment pipe 5. The lower limit is movable upward, and the handle portion 6a is fixed by a fixing means (not shown). It is fixed to a predetermined height by being secured to the body frame 2.

[0014] The filtration unit 8, driven by the motor 9, has a first plate group and a second plate group. This process involves causing one of the plate groups to move in parallel, thereby dewatering the raw water, which is the wastewater. This removes solid matter from the raw water. The dewatering process by the operation of the filtration unit 8 removes solid matter from the filtration unit 8. The remaining solid material is disposed of at a designated disposal location by the guide plate 7. This will be explained later. A discharge port 10 is provided on the side of the raw water return tray 4, and the discharge port 10 is not shown. Once the piping is connected, the raw water discharged from outlet 10 passes through this piping and returns to a raw water tank (not shown). It is filtered. Above the raw water return tray 4 is a raw water supply pipe 11 that supplies raw water from the raw water tank. The main frame section 2 located below section 7 has outlets 12A and 12A for discharging filtered water. B is provided with drains 13 at the bottom of the rectifier box 3.

[0015] Now, let's explain the configuration of the filtration unit 8. As shown in Figure 2, the filtration unit 8, located on the right side in Figure 1(b), is responsible for transporting raw water and solids. The front plate section 8A is located on the upstream side in the conveying direction, and the downstream side in the conveying direction is located It has a rear plate section 8B. The front plate section 8A and the rear plate section 8B are They are arranged so as to be separated from each other in the direction of transport. The front plate section 8A consists of a first plate group 15 which integrates multiple plates A, and a plate It has a second plate group 16 which integrates multiple plates B that have a shorter transport direction length than plate A. The subsequent plate section 8B consists of multiple plates that are shorter in length in the transport direction than plate B. A third plate group 17 with C integrated, and a plurality of plates having the same transport direction length as plate C. It has a fourth plate group 18 that integrates rate D. Here, among the plate groups 15, 16, 17, and 18, the first plate group 15 and the third plate group Plate group 17 and the second plate group 16 and the fourth plate group 18 are integrally configured with each other. They are all integrally composed of each other. To distinguish the integrally composed plate groups, see Figure 2. In this diagram, the first plate group 15 and the third plate group 17 are outlined in white, and the second plate group 16 and The fourth plate group 18 is indicated by hatching.

[0016] Figure 3 shows a schematic view of the filtration section 8 from the upstream side in the transport direction of the front plate section 8A. Note that in Figures 2 and 3, the filtration section 8 should ideally be located downstream in the transport direction, as shown in Figure 1. The top surface is angled upwards as it approaches the side, but to avoid complicating the diagram... Therefore, the filtration section 8 is positioned so that its upper surface is horizontal in the direction of transport. In Figure 3, each plate A constituting the first plate group 15 and the second plate group 16 are shown. Each of the plates B is configured to interlock with each other. (This is not shown in the diagram.) Similarly, each plate C that constitutes the third plate group 17 and the fourth plate group 18 Each plate D is designed to interlock with the others.

[0017] As shown in Figure 2, the first plate group 15 is constant in its thickness direction via spacers 19. Multiple plates A are stacked and arranged at intervals such that each plate A is upstream in the transport direction and Long bolts 21 are inserted through both ends on the downstream side in the transport direction, and the long bolts 21 and Figure Each plate A is held integrally by nuts not shown. At the downstream end of rate A in the conveying direction, a leg portion A1 is provided that extends downward. The long bolts 21 are inserted into the upstream end of plate A in the transport direction and into the leg portion A1, respectively. It is being done.

[0018] The second plate group 16 has the same thickness as plate A, but its length in the transport direction is shorter than that of plate A. Plate B is arranged so that it is spaced at a constant interval via spacers 19 in the thickness direction, and each Multiple plates are stacked and arranged so as to be positioned between plates A. The second plate group 16 is, Long bolts 22 are attached to both ends of each plate B, on the upstream and downstream sides in the transport direction. The plates B are inserted through and held together by the long bolts 22 and nuts (not shown). It is composed of the upstream end and downstream end of each plate B in the transport direction Each of these is provided with legs B1 and B2 that extend downward, and a long bolt The 22 is inserted through each leg portion B1, B2. Each leg portion B1, B2 is in the X direction along the length of the device. They are positioned so as not to interfere with leg section A1.

[0019] The third plate group 17 has the same thickness as plate A, but its length in the transport direction is shorter than that of plate B. Multiple plates C are stacked in the thickness direction with spacers 20 at regular intervals. They are arranged in layers. The third plate group 17 is located upstream of each plate C in the transport direction and transport Long bolts 23 are inserted through both ends on the downstream side, and the long bolts 23 and the shown It is constructed by holding each plate C integrally with a nut. The upstream end and downstream end of C in the conveying direction are each formed to extend downward. Legs C1 and C2 are provided, and the long bolt 23 is inserted through each leg C1 and C2. Yes, they are.

[0020] The fourth plate group 18 is arranged so that it is spaced at a constant interval in the thickness direction via spacers 20. Multiple plates D having the same thickness and length in the transport direction as plate C are stacked and arranged. The fourth plate group 18 is located upstream and below each plate D in the transport direction. Long bolts 24 are inserted through both ends of the flow side, and the long bolts 24 and nuts (not shown) It is constructed by integrally holding each plate D with a toe. Legs are formed to extend downward at the upstream end in the sending direction and the downstream end in the conveying direction. Sections D1 and D2 are provided, and the long bolt 24 is inserted through each leg section D1 and D2. Each leg portion D1 and D2 is positioned so as not to interfere with each other in the longitudinal direction X of the device, relative to each leg portion C1 and C2. They are provided.

[0021] In this embodiment, the thickness of plate A is t1, the thickness of plate B is t2, and the thickness of plate C is The thickness of plate t3 and plate D, t4, are both set to the same thickness of 1.5 mm. The length w1 of spacer 19 and the length w2 of spacer 20 are 2.5 mm and 2 mm, respectively. It is set to 0 mm. Also, the gap g1 between plate A and plate B is 0.5 mm, the gap g2 between plate C and plate D should be 0.25 mm each It is set to this. As described above, the front plate section 8A and the rear plate section 8B are each configured independently. Therefore, as shown in this embodiment, each plate portion 8A, 8B is used If there is a difference in the gaps g1 and g2, the space used in the preceding plate section 8A The length of the sir 19 and the length of the spacer 20 used in the subsequent plate section 8B are made different. This makes it easy to set each gap g1 and g2.

[0022] Furthermore, even if errors occur in the manufacturing precision of each plate C, D and spacer 20, each Because there is no continuity between rates C and D and each plate A and B, the configuration of the preceding plate section 8A A gap g to improve the dewatering efficiency in the downstream plate section 8B without affecting the other components. A gap g2 narrower than 1 can be obtained. Therefore, due to the accumulation of manufacturing errors, The parallel motion described above is not hindered, that is, regardless of the manufacturing precision of plates C and D. A very narrow gap g2 can be easily achieved. In this embodiment, the gap g1 of the front plate portion 8A is relative to the gap of the rear plate portion 8B. The cap g2 is configured to be half the size. Also, the spacing between each plate section 8A and 8B S is designed so that the raw water, which is the material to be treated, can be transported smoothly in the transport direction. It will be set to the smallest possible value.

[0023] As shown in Figure 4, the second plate group 16 consists of multiple plates B and the fourth plate The multiple plates D constituting group 18 are separated by a pair of L-shaped side plates 25, 26. Each plate B holds each long bolt 22, and each plate D holds each long bolt 24 These are attached to each side plate 25, 26 respectively, and these connect to the movable side plate group The second plate unit 28 is formed by the following. Reference numerals 25a and 26a indicate the long bolts. Reference numeral 29 denotes the bolt insertion holes through which bolts 22 and 24 are inserted, and the long bolts 22 and 24 are fixed to each other. Each shows a nut. The upstream end of the second plate unit 28 in the conveying direction and conveying The downstream ends are both blocked by side plates (not shown). Each side plate 25, 26 has a bottom surface 25b, 2 formed by bending the lower ends inward from each other. 6b is formed, and a gap 31 is provided between the bottom surfaces 25 and 26b. The gap 31 is Each plate group 16, 18 is used as a space through which the water separated from the raw water falls. The bottom surfaces 25b and 26b are fitted with a second plate unit 28, which will be fixed later. Four mounting holes 25c and 26c are formed on each of the 51 for fixing it in place.

[0024] As shown in Figure 3, the first plate group 15 is L-shaped and located outside the side plates 25 and 26. The long bolts 21 are supported between the pair of side plates 35 and 36, thereby providing the positioning. Furthermore, although not shown in the illustration, the third plate group 17 has long bolts 2 between the side plates 35 and 36. 3 is positioned by being supported. These are the first plate group 15 and the third plate group 15. The plate group 17 constitutes the first plate unit 27 as a fixed-side plate group. In addition, similar to the second plate unit 28, the first plate unit 27 is transported in the same direction as the second plate unit 28. Both the flow-side end and the downstream end in the conveying direction are closed off by side plates (not shown). Each side plate 35, 36 has a bottom surface 35a, 3 formed by bending the lower ends outwards from each other. 6a is formed, and the first plate unit 27 is attached to the housing 7 on the bottom surfaces 35a and 36a. In contrast, two mounting holes (not shown) are formed on each side for securing the components.

[0025] In each of the above configurations, each plate A and the second plate that constitute the first plate group 15 Each plate B constituting group 16, each plate C constituting group 17, and the fourth plate Each plate D constituting the plate group 18 has the same top surface so that its upper surface forms a single surface. The pieces are aligned and placed side by side. Furthermore, each plate that constitutes the first plate group 15, which constitutes the first plate unit 27 Plate A and each plate C constituting the third plate group 17 have their respective upper surfaces forming a single surface. It is supported between the side plates 35 and 36 in the same manner. Each plate B constituting the second plate group 16 and each plate B constituting the fourth plate group 18 Rate D is supported between side plates 25 and 26 such that each of their upper surfaces forms a single surface. ru.

[0026] Boundary between the second plate group 16 and the fourth plate group 18 in the second plate unit 28 A partition plate 30 is fixed to separate the second plate group 16 and the fourth plate group 18. The partition plate 30 allows the second plate unit 28 to handle the treated water from the second plate group 16. The system is configured to allow for the separation and recovery of treated water from the fourth plate group 18. Corresponding to the area of ​​the second plate unit 28 partitioned by the partition plate 30, the second plate The bottom surface 2a of the main frame section 2, which is located below the articulated unit 28, is also divided into two by the partition plate 32. It is divided into the following regions. Each region formed in the bottom surface 2a is the front plate portion 8A or The outlet 12A discharges the treated water that has fallen and been contained within the main frame section 2, and the downstream plate The outlet 12B that discharges the treated water that falls from section 8B and is contained within the main body frame section 2 is They are provided.

[0027] As shown in Figure 3, the main frame section 2 is on the front side in Figure 1(b) and on the downstream side in the transport direction. On its side is a motor 9, which serves as a driving means for moving the second plate unit 28 in parallel. It is arranged. The drive shaft 38 is connected to the output shaft of the motor 9, and the drive shaft 38 is The body frame 2 is rotatably supported by bearings 39 and 40 fixed to the outside of the side plates. As shown in Figure 5, upstream of the drive shaft 38 in the conveying direction, there is a drive shaft 38 that is arranged parallel to the drive shaft 38. A driven shaft 41 is provided. The driven shaft 41 is located on the side of the main frame 2, similar to the drive shaft 38. The plate is rotatably supported by bearings 42 and 43 fixed to the outside of the plate. Timing pulleys 44 are attached to the motor 9 side ends of the drive shaft 38 and the driven shaft 41, respectively. 45 is fixed, and a timing belt 46 is wrapped between each pulley 44, 45. The motor 9 is configured to transmit its driving force to the driven shaft 41.

[0028] As shown in Figure 5, the drive shaft 38 has a rotation center that is eccentric with respect to the rotation center of the drive shaft 38. Two eccentric cams 47 are provided, each having the same characteristics as the driven shaft 41. Two eccentric cams 48 are provided, configured as shown in Figure 4. Each eccentric cam is rotatably supported by an eccentric cam bearing 49 (only one is shown in Figure 4), and each eccentric cam 48 consists of two eccentric cam bearings 50 located upstream of each eccentric cam bearing 49 in the transport direction. Each eccentric cam 47 is rotatably supported (only one is shown in Figure 4). A marking element such as a set screw is attached to the circumferential surface, and each is positioned so that their phases align. Each eccentric cam 48 is fixed to the drive shaft 38 so as not to rotate. Similarly, each is fixed to the driven shaft 41 in such a way that it cannot rotate.

[0029] Each eccentric cam bearing 49, 50 is supported by the second plate unit 28 and the main frame section 2. It is attached to a fixing plate 51 provided between each shaft 38, 41. Fixing plate 5 In part 1, there is a tap 51a for fixing each eccentric cam bearing 49, 50 to one bearing. There are two of each, for a total of eight. Each eccentric cam bearing 49, 50 is secured by two bolts. The 52 is fixed to the fixing plate 51 by screwing it into each tap 51a. When fixed, each eccentric cam bearing 49, 50 rotatably supports the drive shaft 3 A well-known method using a knock pin or the like so that 8 and the driven shaft 41 are parallel to each other. Each is then attached to the fixing plate 51. The bolts 52 used are those with a length greater than the thickness of the fixing plate 51. It can stay there. The fixed plate 51 moves up and down as each eccentric cam 49, 50 rotates, In order to reduce the load on the motor 9 that generates the driving force, its thickness is as follows in this embodiment. The length is kept to around 5-10 mm. Therefore, the length of the bolt 52 used is 15-2 A thickness of approximately 5 mm is desirable. The thickness of the fixing plate 51 and the length of the bolt 52 are as described above. The values ​​are not limited to a single value and can be changed according to the specifications of the solid-liquid separation device 1.

[0030] As described above, the drive shaft 38 to which each eccentric cam 47 is fixed controls each eccentric cam 47 Each eccentric cam bearing 49 is rotatably supported, and then each eccentric cam bearing 49 is secured by each bolt 52. By being attached to the fixing plate 51, it is rotatably supported by the fixing plate 51. Similarly, the driven shaft 41 to which each eccentric cam 48 is fixed also has each eccentric cam 48. After being rotatably supported by the cam bearing 50, each eccentric cam bearing 50 is fixed by each bolt 52. By being attached to the base 51, it is rotatably supported by the fixing plate 51. When installing each eccentric cam bearing 49, 50, the drive shaft 38 and the driven shaft 41 are parallel to each other. It is attached to the fixing plate 51 while maintaining its position. Each eccentric cam bearing 49, 50 is fixed. The eight bolts 52 fixed to the plate 51 have their tips pointing upward from the fixing plate 51. It is pointed and protruding.

[0031] The fixed plate 51, which rotatably supports the drive shaft 38 and the driven shaft 41 respectively, has bearings By means of 39, 40, 42, and 43, the drive shaft 38 and the driven shaft 41 are rotated on the main frame 2, respectively. By being mounted rotatably, it is supported by the main frame section 2. Subsequently, the drive shaft 38 Timing pulley 44 is attached to the driven shaft 41, and timing pulley 45 is attached to the driven shaft 41. After that, a timing belt 46 is stretched between each pulley 44, 45, and a cup (not shown) The output shaft of the motor 9 is connected to the drive shaft 38 via a ring. Through the above process, the above Each of the components, namely the motor 9, drive shaft 38, driven shaft 41, and each bearing 39, 40, 42, 43, each pulley 44, 45, timing belt 46, each eccentric cam 47, 48, each eccentric cam The bearings 49 and 50, the fixing plate 51, and each bolt 52 are each attached to their respective predetermined positions. These can be kicked. These are the individual components 9, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52 move the second plate unit 28 in parallel motion. A plate moving mechanism 53 is configured.

[0032] Next, the first plate unit 27 and the fixing plate 51 with respect to the main frame 2 The installation of the second plate unit 28 will now be described. Figure 6 is a plan view of the main frame 2 showing the state in which the plate moving means 53 is attached. In the figure, the side walls of the main frame section 2 are made up of the side plates that constitute the first plate unit 27. There are four bracket-shaped mounting parts 2b to which the bottom surfaces 35a and 36a of 35 and 36 are attached. It is provided. The mounting surface of each mounting part 2b to the side wall of the main frame part 2 is in the direction of the length of the device. An elongated hole (not shown) is provided, formed toward X. Each mounting portion 2b is a bolt (not shown) The bolts and nuts are used to secure the side wall of the main frame section 2 within the range of the elongated holes (not shown). The device is mounted in a position that can be adjusted in the longitudinal direction X. In addition, each mounting part 2b is attached to the main body frame. By providing a plate-shaped spacer (not shown) between the side wall of the base portion 2 and the device width, the width of the device can be adjusted. It can be mounted in a position that is adjustable in the direction Y. Each mounting portion 2b has a mounting hole (not shown) that communicates with a mounting hole formed in each bottom surface 35a, 36a. Each of the mounting holes 2c is formed, and the first plate unit 27 has each bottom surface 35a, 36a With the parts placed on each mounting portion 2b, as shown in Figure 3, bolts 54 and nuts 55 are used It is then fastened and secured to the main frame section 2.

[0033] In the configuration shown in this embodiment, as shown in Figure 3, the second plate unit 28 is the main body The drive shaft 38 and driven shaft 41, whose mounting positions on the frame 2 have been determined, are used to mount the main frame 2 A fixing plate 51 is supported so as to be able to move up and down, and each bolt 52 and corresponding Each nut 56 is used to secure the second plate unit 28. The to 52 has a drive shaft 38 and a driven shaft 41 whose mounting positions are determined relative to the main frame 2. These are mounting bolts for the eccentric cam bearings 49 and 50, which are each rotatably supported, and therefore the main frame The relative position with respect to the base 2 is determined. Therefore, the second plate unit is attached to each bolt 52. If the 28 is fixed, the relative position of the drive shaft 38 and driven shaft 41 and the second plate unit 28 Once the placement is determined, the only thing left to do is the phase between the second plate unit 28 and the first plate unit 27. Once the relative positions are determined, the drive shaft 38 and driven shaft 41 and the first plate unit 27 and the second plate The relative position to the t unit 28 will be determined.

[0034] When attaching the first plate unit 27 to the main frame 2, the position confirmation shown in Figure 7 Member 57 is used. The plate-shaped position confirmation member 57 has eight holes through which each bolt 52 can pass. A hole 57a is formed in one place, and four holes 57b are formed in each place through which each bolt 54 can pass. The position of each hole 57a is determined by the relative position between each bolt 52 and the main frame 2, as described above. Because it is fixed, it is formed in the predetermined position. Also, the relative position of each hole 57a and each hole 57b The first plate unit 27 and the second plate unit 28 are positioned relative to each other. The second plate unit 28 is positioned so that it can perform parallel motion smoothly. It has been decided in advance.

[0035] First, position confirmation member 57 is inserted into the main frame 2 so that each bolt 52 is inserted into each hole 57a. The first plate unit 27 is temporarily secured to the main body using each bolt 54. Temporarily fasten it to the base 2. At this time, the mounting holes formed on each bottom surface 35a, 36a and each If the position of the attachment part 2b does not match, the position of each attachment part 2b is adjusted. Next, position confirmation Remove the identification member 57 and attach the first plate unit 27 and the second plate unit to the main frame 2. The knit 28 is attached. This connects the drive shaft 38 and the driven shaft 41 to the first plate unit. The relative position between the 27 and the second plate unit 28 is determined.

[0036] Figure 8 shows the eccentric cam 47, which is fixed to the drive shaft 38, being supported by the eccentric cam bearing 49. This is a diagram illustrating the configuration. The eccentric cam 47 is formed in a cylindrical shape, and its center O1 is on the drive shaft 38. It is spaced δ away from the center O2. This eccentricity δ can be set to an appropriate value, for example, 5 mm. The driven shaft 41 and the eccentric cam 48 are configured similarly. In this configuration, each eccentric cam 47, 48, with each axis 38, 41 fixed, is positioned around the center O2. In Figure 8, when rotated counterclockwise, the fixed plate rotates along with the rotation of each eccentric cam 47, 48. The plate 51 is displaced, and the movable plate is relative to the first plate unit 27, which is the fixed plate group. The second plate unit 28, which is a group of plates, undergoes parallel motion. Parallel motion, in this context, means: The second plate unit 28 does not tilt in the front-to-back direction or the left-to-right direction, and remains in a horizontal plane. The angle of the upper surface (the upper surface of each plate B and D shown in Figure 2(b)) relative to the upper surface is kept constant. In this state, as each eccentric cam 47, 48 rotates, the first plate unit 27 moves in the front-rear direction. It refers to relative movement in the vertical direction.

[0037] Figure 9(a) shows the filter formed on the upper surface of plate A that constitutes the first plate unit 27. On the surface, solid matter 14 formed by water dripping from the supplied raw water is placed. This shows that when parallel motion occurs from this state, the first plate unit 27 shapes The filtration surface formed by the second plate unit 28 is displaced upward relative to the filtration surface that is being formed. Then, the solid material 14 is placed on the filtration surface of the second plate unit 28. As the second plate unit 28 moves in the X direction, the solid object 14 moves as shown in Figure 9(b). As shown, it is lifted by the filtration surface of the second plate unit 28 and is on the downstream side in the transport direction. It will be moved to [location]. Subsequently, as shown in Figure 9(c), the solid matter 14 on the second plate unit 28 is second As plate unit 28 descends, it replaces the second plate unit 28. It is transferred to the filtration surface of plate unit 27. This operation is repeated. The solid material 14 is then gradually transported downstream in the transport direction. The first plate unit 27 is constructed Each plate A, C and each plate B, D that constitute the second plate unit 28 are, The second plate unit 28 moves up and down, causing it to be displaced relatively in the vertical direction. The filtration surface that transports the solid material 14 is the first plate for each rotation of the drive shaft 38 and driven shaft 41. The filtration surface of unit 27 and the filtration surface of the second plate unit 28 alternate as new filtration surfaces. It will appear there.

[0038] As shown in Figure 10(a), the filtration section 8 has the first plate unit 27 in the uppermost position, and the second In the first embodiment, the plate unit 28 occupies the lowest position, and as shown in Figure 10(b), the second embodiment A second embodiment in which the first plate unit 27 and the second plate unit 28 form the same plane. The filtration section 8 is comprised of the second plate unit 28, as shown in Figure 10(c). In a third configuration, the first plate unit 27 occupies the lowest position, and as shown in Figure 10(d) As shown, the first plate unit 27 and the second plate unit 28 form the same plane. This constitutes a fourth aspect. These first to fourth aspects include the drive shaft 38 and the driven shaft 41. They appear continuously during one rotation, and as each axis 38, 41 rotates from the first aspect, the second aspect appears. The first aspect reappears after going through the third aspect and the fourth aspect. This is substantially identical to the aspect described in 4.

[0039] In the parallel motion described above, when the plate rises and receives raw water, the plate is pushed up. By squeezing the raw water in this way, dewatering from the raw water is promoted. Therefore, the first plate The second plate unit 28 performs parallel motion relative to the knit 27, and each unit 27, 28 When the height difference of the filtration surface is greatest, that is, when the first or third configuration is assumed Sometimes, the amount of water falling from the raw water is greatest. Conversely, the difference in height between the filtration surfaces of each plate is greatest. When it is small, that is, when it occupies the second or fourth aspect, the above play The squeezing action of the torch does not provide a dehydrating effect, and the dehydration is solely due to gravity. Therefore, by maintaining the second and fourth embodiments, a filter is made that makes it easier to recover solid matter 14 from the raw water. Although a filter surface can be formed, the filter surface is covered with raw water containing solid matter 14, resulting in dewatering. The rate will decrease.

[0040] Next, we will explain the dewatering process of the raw water by the filtration unit 8. The raw water supplied from the raw water supply pipe 11 is straightened in the flow straightening box 3 and then overflows and is filtered. The raw water reaches the front plate section 8A of the overflow section 8. The motor 9 is operating, and the drive shaft 38 is rotated counterclockwise in Figure 5. This rotation is transmitted to the driven shaft 41 via the timing belt 46, and synchronized with the drive shaft 38. The driven shaft 41 is then rotated. This rotation causes each eccentric cam 47, 48 to move along each shaft 38. In Figure 8, 41 rotates eccentrically around the center O2, and the second plate unit 28 is parallel. Engage in exercise.

[0041] The raw water that reaches the preceding plate section 8A due to the parallel movement of the second plate unit 28, In Figure 1, the transport direction, which is the length direction X of the device, is from the upstream side (right) to the downstream side (left). It is transported in that direction. The raw water is transported downstream in the transport direction by the front plate section 8A. At this point, the water in the raw water is drawn downwards by its own weight through the gap g1 between plates A and B. It falls, and the remaining water and solid matter 14 are transported downstream in the transport direction. The raw water is then dewatered by the front plate section 8A. The water that falls downwards is discharged from outlet 12A shown in Figure 4 and then through piping (not shown). It is then sent to the next process.

[0042] The raw water containing the dewatered solids 14 in the preceding plate section 8A is used in the second plate unit. The parallel motion of part 28 moves it from the front plate section 8A to the rear plate section 8B, and further The raw water is transported downstream in the transport direction by the downstream plate section 8B. During the transport process, the raw water is dewatered by the downstream plate section 8B. The water that has been dewatered by section 8B and fallen downward is discharged from the outlet 12B shown in Figure 4. It is then sent to the next process via piping (not shown in the diagram). The solid matter 14 remaining on the filtration section 8 after the dewatering process is fixed between the side plates 35 and 36. Guided by guide plate 7, it falls downward and is recovered.

[0043] When the filtration section 8 occupies the second or fourth mode during the dewatering process, each plate The flow velocity of the raw water tends to decrease in the gaps g1 and g2 between the toes, and the solid matter 14 is recovered. The rate increases. And in this state, the filtration surface of each plate is with raw water containing solid matter 14. As it is covered, the water level of the raw water on the filtration surface gradually rises. Then, filtration occurs due to the parallel motion. When the excess portion 8 occupies the first or third aspect, the flow of raw water in gaps g1 and g2 As the speed increases, the solid material 14 is transported downstream, and the filter is filtered from the upstream side in the transport direction of the filtration section 8. As the excess water is regenerated, the raw water level drops rapidly. Axes 38 and 41 are rotated 90 degrees apart. This action is repeated by rotating it.

[0044] In the solid-liquid separation apparatus 1 described above, as stated in the [Problems to be Solved by the Invention] section, It is difficult to significantly improve the recovery rate of solids from raw water, especially when the SS (suspended solids) concentration is high. When dewatering low-temperature raw water or when the solid matter contained in the raw water is fine and soft, Solid matter falls through the gaps between the plates along with the water, resulting in poor recovery of the solid matter. There was a dot. To solve the above-mentioned problems and effectively remove solid matter from raw water while achieving good solid-liquid separation, One embodiment of the present invention provides a configuration for a solid-liquid separation apparatus that can significantly improve the recovery of solids. The form is described below.

[0045] Figure 11 shows a solid-liquid separation apparatus according to the first embodiment of the present invention. Compared to the solid-liquid separation device 1 described above, the liquid separation device 60 connects the raw water supply pipe 11 to the rectifier box 3. Pump 61 as a supply means for supplying raw water, raw materials to be processed in the filtration section 8 A liquid level sensor 62 acts as an upper limit detection means for detecting the upper limit of the water level, and a lower limit detection means for detecting the lower limit of the water level A liquid level sensor 63 as a lower limit detection means, and a state detection means for detecting the configuration of the filtration unit 8 It differs in that it has a position detection sensor 64, a control means 65, and a timer 66. The other components are identical.

[0046] The pump 61 is installed in the raw water supply pipe 11 and responds to the operation signal sent from the control means 65. Based on this, it is activated or deactivated, and in the activated state, raw water is supplied to the rectifier box 3, and in the deactivated state, the rectifier box 3 The supply of raw water to [the area] will be stopped. Liquid level sensors 62 and 63 are supplied with water from the raw water supply pipe 11 and from the flow straightening box 3. The liquid level of the raw water supplied to the filtration unit 8 is detected, and the detection signal is sent to the control means 65. In terms of form, each sensor 62, 63 consists of an electrode rod and emits a signal when it detects moisture. A liquid level sensor is used. The liquid level sensor 62 indicates the upper limit position of the raw water supplied to the filtration unit 8. This sensor detects solid water, and as shown in Figure 12, when the raw water 33 supplied to the filtration unit 8 is solid It is installed at a height that prevents leakage from the left end, which is the material discharge side. The liquid level sensor 63 is filtration This sensor detects the lower limit position of the raw water supplied to the overflow section 8, and as shown in Figure 13, It is installed at a height where the water level of the raw water 33 on the overflow section 8 drops down and the filtration surface is sufficiently exposed. Sensors 62 and 63 are mounted on the main unit base 2 so that their detection height can be adjusted. The signals output from each sensor 62, 63 are input to the control means 65, which will be described later. Based on the signals from each sensor 62, 63, the raw water 33 that accumulates on the filtration unit 8 is... The quantity is detected. As water level detection sensors 62 and 63, instead of electrode rods, near detection using light or other means is used. A contact sensor may also be used.

[0047] As shown in Figure 14, the position detection sensor 64 is integrally mounted on the drive shaft 38. The detection unit 67 is positioned to be detectable by proximity sensors or limit switches, etc. The position detection sensor 64 detects the detected unit 67 and outputs a signal to the control means 65. The detection unit 67 is constructed, for example, by a bolt screwed onto the drive shaft 38 or a pin welded to it. The position on the circumferential surface of the drive shaft 38 is such that each plate of the filtration section 8 is in the second manner When it occupies (or the fourth aspect), the position detected by the position detection sensor 64 It is arranged. The motor 9 receives signals from the control means 65 and its driving and stopping are controlled. ru.

[0048] The control means 65 is a well-known microcomputer having a CPU, ROM, RAM, etc. (not shown) It is a monitor that receives signals from sensors 62, 63, 64 and timer 66. It controls the operation of the motor 9 and the pump 61. Timer 66 holds a preset time and receives a start signal from control means 65. Upon receiving the signal, the timer starts, and once the set time has elapsed, a signal indicating that the timer has finished is sent to the control means 65. I believe it. The set time on timer 66 is when the filtration unit 8 starts parallel movement and filtration begins. The solid material 14 placed on section 8 is transported from the upstream position in the transport direction of the filtration section 8 to the downstream side. This setting is set to the time it takes for the guide plate 7 to be ejected. , the operating time of one rotation of the motor 9 and the parallel motion of one rotation of the filtration unit 8 during which solid matter 14 is present. The setting is based on the transport distance and the distance from the upstream position of the filtration section 8 in the transport direction to the guide plate 7. It will be done.

[0049] Next, the operation of the solid-liquid separation device 60 will be explained. Prior to the supply of raw water 33 from the raw water supply pipe 11 to the rectifier box 3, the control means 65 controls the flow rate An operation command is sent to terminal 9 and the motor 9 is driven. The drive of motor 9 drives the filtration section 8 As the second plate unit 28 begins to move in parallel, the drive shaft 38 begins to rotate, driving When the detected part 67, which rotates together with the shaft 38, is detected by the position detection sensor 64, the position detection sensor A signal is sent from sensor 64 to control means 65, and based on the command from control means 65, the motor The operation of 9 is stopped. As a result, the solid-liquid separator 60 has the filtration unit 8 and the first plate unit A second (or fourth) aspect in which the to 27 and the second plate unit 28 form the same plane. It occupies the area shown in Figure 15. Note that Figure 15 and Figures 16, 17, and 1 described later are also shown in Figure 15. Figure 8 shows the front side of the main frame 2 cut away, revealing the inside of the filtration section 8. It is.

[0050] When the filtration unit 8 takes on the second mode, a signal is sent from the control means 65 to the pump 61 and it pumps P61 is activated, and raw water 33 is supplied from the raw water supply pipe 11 to the rectifier box 3. The water 33 is straightened in the straightening box 3, then overflows and is supplied onto the filtration section 8, and the raw water 33 When detected by the liquid level sensor 62, a signal is output from the liquid level sensor 62 to the control means 65. The control means 65, upon receiving the signal, sends a signal to the pump 61 to stop the operation of the pump 61. This is the first step, the filtration mode. As a result, the solid-liquid separation device 60 has a filtration section. As shown in Figure 16, raw water 33 containing solid matter 14 is supplied to the upper limit position on 8.

[0051] In the state shown in Figure 16, the filtration section 8 of the solid-liquid separation device 60, each plate unit The moisture from the raw water 33 deposited on the upper surface of 27 and 28 is below the gaps g1 and g2 mentioned above. It leaks out in that direction, and the liquid level of the raw water 33 gradually decreases. Then, the liquid level of the raw water 33 decreases When the raw water 33 is detected by the liquid level sensor 63, the control means 65 A signal is output. This is the second step, the standby mode. This is the solid-liquid separation device. Figure 17 shows that position 60 is when the raw water 33 has descended to the lower limit position, leaving solid matter 14 on the filtration section 8. This state occurs. In this standby mode, moisture in the raw water 33 leaks from gaps g1 and g2. By doing so, the solid matter 14 contained in the raw water 33 remains on the upper surface of the filter section 8 and solidifies. Extraction of morphological material 14 is performed. In standby mode, depending on the SS concentration of the raw water 33, it is approximately 10 In about a minute, the raw water 33 will descend from the upper limit to the lower limit.

[0052] The control means 65, having received a signal from the liquid level sensor 63, sends an operation command to the motor 9. Activate the motor 9 and simultaneously send a start signal to timer 66 to begin timing. As a result, when the second plate unit 28 begins to move in parallel, each plate in the filtration section 8 As the flow velocity of the raw water 33 increases in the gaps g1 and g2, the solid matter 14 is transported downstream. The material is transported, and the filtration surface, which is the upper surface of each plate, is regenerated from the upstream side in the transport direction of the filtration unit 8. Then, when the timer 66 detects the elapsed of the set time, the control means 65 sends a stop signal to the motor 9. The signal is sent, and the parallel motion of the second plate unit 28 is stopped. This is the third step. This is the transport and regeneration mode. Here, the setting time of the timer 66 is as described above on the filter section 8. Since this is the time when all solid matter 14 is removed from the solid-liquid separator 60, the solid-liquid separator 60 removes the solid matter on the filtration section 8. The state shown in Figure 18 is achieved when all of the shape objects 14 have been ejected from the guide plate 7.

[0053] After the timer 66 detects the elapsed of the set time and the motor 9 stops, the control means 65 Then an operation command is sent to motor 9 and motor 9 is driven again, and the second plate unit 28 As the parallel motion begins, the drive shaft 38 begins to rotate. And together with the drive shaft 38, When the rotating detected part 67 is detected by the position detection sensor 64, the position detection sensor 64 A signal is sent to the control means 65, and the operation of the motor 9 is stopped based on the command from the control means 65. This results in the solid-liquid separation device 60 having a filtration section 8 with a first plate unit 27 and a second plate unit 8. The rate unit 28 occupies a second (or fourth) aspect in which it forms the same plane as the rate unit 28, and The state shown in Figure 15 is then reached. This is the fourth step, the standby mode. After a while, the process returns to the first step and this operation is repeated.

[0054] According to the first embodiment of the present invention described above, the first plate unit 27 and the second plate The filtration section 8, which has the greatest overlap with unit 28, has a reduced flow velocity for the raw water 33. In a state where the second or fourth aspect is assumed, in the first step, which is the filtration mode, A larger amount of raw water 33 can be deposited on the filtration section 8 than in the conventional configuration. And this large amount of deposited The raw water 33 is drawn down by its own weight from between the narrow gaps g1 and g2 between the plates 27 and 28. Because it leaks out to the upper surface of the filtration section 8 in the second step, standby mode Fine solid matter 14 that previously flowed down the upper surface of each plate 27, 28 by parallel motion It can be preserved.

[0055] Here, since gaps g1 and g2 are formed along the conveying direction of the solid material 14, Solid matter 14 that is finer than the gaps g1 and g2 of fibers etc. along the direction of transport is g1, g The solid material 14 flows down from 2, but in a direction intersecting the transport direction, it is narrower than gaps g1 and g2. In this way, it remains on the filtration section 8. And in this direction intersecting the transport direction If the solid matter 14 remains on the filter section 8, other solid matter will be added on top of the remaining solid matter 14. 14 is deposited, and the amount of solid matter 14 deposited on the filtration section 8 can be increased, resulting in This makes it possible to significantly improve the recovery of solid matter 14.

[0056] Based on the above composition, the raw water 33 is low-concentration raw water with a low SS concentration and contains fine and soft substances. Even in the case of raw water, the amount of solid matter 14 accumulating on the filtration section 8 has increased significantly compared to conventional methods. Therefore, the recovery efficiency of solid matter 14 in the raw water 33 by the parallel movement of the filtration unit 8 is greatly improved. This is possible. Also, in the third step, the transport and regeneration mode, the second plate unit 2 Since 8 is made to perform parallel motion, the filtration unit 8 is formed in the filtration mode and standby mode. The clogged state is cleared, the solid material 14 is transported, and a new filtration surface is exposed. And so it becomes. Then, after the third step, the filtration section 8 returns to the first step via the fourth step. It is then initialized again, making it possible to perform a new solid-liquid separation, the first process, the second process, and the The solid-liquid separation process of the present invention is continuously carried out by repeating steps 3 and 4. This makes it possible to significantly improve the recovery of solid material 14 while performing normal solid-liquid separation. It becomes Noh.

[0057] Furthermore, according to the configuration of this embodiment, the liquid level sensor 6 serves as the upper limit detection means and the lower limit detection means. Because it has 2.63, the amount of raw water 33 accumulated in the filtration section 8 can be accurately detected. At the same time, the amount of raw water 33 supplied to the filtration unit 8 can be adjusted to suit the purpose. Solid matter 14 can be effectively removed from the raw water 33 that has accumulated therein. Furthermore, according to the configuration of the present invention, the state detection means detects the position of the second plate unit 28. Since it is a position detection sensor 64, it can accurately grasp the state of the second plate unit 28. This allows for precise control of the state of the raw water 33 on the filtration section 8.

[0058] Figure 19 shows a solid-liquid separation apparatus according to a second embodiment of the present invention. Compared to the solid-liquid separation device 60 described above, the liquid separation device 70 has a flow straightening box 3 (or V-weir metering) The above-mentioned PAC (polyaluminum chloride) and raw water 33, which has been measured to a certain amount in a tank, are added to it. In addition to adding a neutralizing agent (pH adjuster) such as caustic soda and a polymer flocculant, the chemical mixing section and It differs in that it has a coagulation reaction tank 71, but the other components are the same. The coagulation reaction tank 71 mixes and stirs the raw water 33 sent from the flow straightening box 3 with the coagulant to process the raw water 33. This is a flocculant-forming apparatus, equipped with stirring fins 73 driven by a motor 72. The motor 72 is appropriately controlled by a control means (not shown) to supply raw water 33 and this The flocculant to be added is properly mixed and stirred.

[0059] Next, the operation of the solid-liquid separator 70 will be explained. In this explanation, the raw water 33 will be referred to as school water. Assuming wastewater from a school lunch center, the SS (suspended solids) in the wastewater is 800 mg / liter. BOD (Biochemical Oxygen Demand): 500 mg / liter, Oil content: 200 mg / liter It shall include impurities. First, as in the first embodiment, prior to the operation of the pump 61, the motor 9 is controlled by the control means 65. An operation command is sent, and the filtration unit 8 occupies the second mode (or fourth mode), as shown in Figure 20. This is the state. Note that Figure 20 and Figures 21, 22, and 23, which will be described later, show the main frame section 2, respectively. The front side has been cut open, revealing the inside of the filtration section 8.

[0060] When the filtration unit 8 assumes the second position, the pump 61 activates and the water flows from the raw water supply pipe 11 to the rectifier box 3. Raw water 33 is supplied to it. The raw water 33 supplied from the raw water tank via the raw water supply pipe 11 is then prepared The mixture is sent to the coagulation reaction tank 71 via the flow chamber 3, where a coagulant such as PAC is added. The excess raw water 33 in the flow box 3 is returned to the raw water tank and reacts with the coagulant in the coagulation reaction tank 71. The raw water 33 forms fine flocs (clumps) of solid matter 14, which then overflow and are filtered. The sand supplied to section 8 extends from the sea, which is the inlet side of the filtration section 8, to the land, which is the outlet side of the filtration section 8. The filtration section 8, which is modeled after a beach, is gradually blocked by solid matter 14 between the plate units 27 and 28. By creating a blocked state, the filtration section 8 is submerged by the raw water 33, causing the liquid level to rise. Then, when the raw water 33 is detected by the liquid level sensor 62, the pump 61 and motor 72 The operation of the coagulant injection pump (not shown) is stopped, and the first step, the filtration mode, is completed. This allows the solid-liquid separation device 70 to contain flocs with solid matter 14 on the filtration section 8. The raw water 33 is supplied up to the upper limit, resulting in the state shown in Figure 21.

[0061] Since raw water 33 is continuously supplied from the coagulation reaction tank 71 to the filtration unit 8 in this manner, The accumulation of solid matter 14 gradually rises along the upper surfaces of each plate unit 27, 28 of the filtration section 8. This is done. Here, the solid material 14 from the coagulation reaction tank 71 of each plate unit 27, 28 A gentle upward slope towards the exit guide plate 7 should ideally be around 10-20°. If the temperature is too low, it becomes difficult to balance the supply rate of raw water 33 with the filtration rate, making water level control difficult. On the other hand, when the inclination angle exceeds 30°, the transport force decreases due to the weight of the solid object 14. They connect. Furthermore, it is possible to make the lengths of each plate unit 27, 28 extremely long. However, in the configuration of the filtration section 8, which is made up of plate-shaped members, the flatness of each plate-shaped member is made uniform. Since this is desirable, it is not preferable to make the length of each plate unit 27, 28 excessively long. No.

[0062] In the state shown in Figure 21, the filtration section 8 of the solid-liquid separation device 70, each plate unit The raw water 33 accumulated on the upper surface of 27 and 28 leaks downward through gaps g1 and g2. The liquid level of the raw water 33 gradually decreases. The gap of the filtration section 8 under the above conditions of the raw water is A gap of approximately 0.3 to 1.0 mm is preferable. Flocs larger than this gap are solid matter 14 and They settle together and accumulate, sticking to the upper surface of the filtration section 8. Meanwhile, the filtrate, which is the liquid component, The solid material 14 deposited on the plate units 27 and 28 is filtered using the new filter material, It falls due to gravity. As mentioned above, this raw water 33 contains SS, oil, and impurities. The impurities are covered in oil, and the fine SS are broken down into larger aggregates called f by PAC. It is transformed into a lock, making it easier to recover. This allows for the removal of fine particles from the raw water. This significantly improves the ability to remove solid matter 14, and also allows for the removal of oil.

[0063] When the liquid level of the raw water 33 drops and the raw water 33 is detected by the liquid level sensor 63, the liquid level sensor A signal is output from sensor 63 to control means 65 and solid-liquid separation apparatus 70 waits for the second step. The machine mode was completed, and the raw water 33 descended to the lower limit, leaving solid matter 14 on the filtration section 8. The state shown in Figure 22 occurs. In standby mode, moisture in the raw water 33 is released from gaps g1 and g2. Leaked out, flocs containing solid matter 14 remain on the filter section 8, and these remaining flocs are filtered. Further extraction of flocs containing solid material 14 is performed.

[0064] Upon receiving a signal from the liquid level sensor 63, the control means 65 activates the motor 9 and also The timing system, Immer 66, is started, and the second plate unit 28 is made to perform parallel motion. As a result, the floc containing the solid matter 14 on the filtration section 8 is transported downstream, and the gear At points g1 and g2, the flow velocity of the raw water 33 increases, and the filtration surface of the filtration section 8 is re-filtered from the upstream side in the transport direction. The blockage is cleared, and then timer 66 finishes counting the set time. Then the parallel motion of the second plate unit 28 is stopped, and the third process, the transport and regeneration mode, begins. Upon completion, the solid-liquid separation apparatus 70 removes all the flocs containing the solid matter 14 on the filtration section 8 from the guide plate. After discharge from 7, the state shown in Figure 23 is reached.

[0065] Subsequently, the second plate unit 28 begins parallel movement and the detected unit 67 moves to the position detection sensor When detected by the 64, the solid-liquid separator 70 will change the filtration unit 8 to the second mode (or fourth mode) The fourth step, standby mode, is completed when the area is occupied and the state shown in Figure 20 is reached. After step 4, the process returns to step 1 and this operation is repeated. During the series of operations described above, the separated filtrate that is separated and falls through the filtration section 8 is subjected to a flocculation effect. 90% of suspended solids (SS), 40% of BOD (Biochemical Oxygen Demand), and 90% of oil were removed, and almost all impurities larger than 2mm were removed. Everything has been removed. The treated filtrate will be subjected to treatment such as the activated sludge method, which is suitable for the local discharge conditions. This will result in...

[0066] With the above configuration, the solid-liquid separation apparatus 70 shown in the second embodiment is the same as shown in the first embodiment. This device can achieve the same effects as the solid-liquid separation device 60, and also removes fine particles from the raw water 33. This significantly improves the ability to remove solid matter 14, and also allows for the removal of oil. Furthermore, the solid-liquid separation device 70 is equipped with a coagulation reaction tank 71, a motor 72, stirring fins 73, etc. It is used in a solid-liquid separation method in which a coagulant such as PAC is added to raw water 33 to form flocs. Therefore, it can be used as a replacement for conventionally used pressurized flotation devices. This section will explain the comparison with conventional pressurized levitation devices.

[0067] Figure 24 shows the raw water treatment process using a conventional pressurized flotation device 80, and Figure 25 shows the solid-liquid separation process of the present invention. The raw water treatment process by the device 70 is shown separately. In the pressurized flotation device 80, a coagulant is added to fine solid matter such as suspended solids contained in the raw water. Rocks are formed, and the formed flocs are collected. Here, the flocs are formed from raw water. Because it has a tendency to sink, the floc formed for recovery is given buoyancy to make it float. Larger impurities that are difficult to float are removed in advance by a screen. Therefore, a raw water tank, screen, flow rate adjustment tank, and pressurization device are required. In particular, The speed is 10m 3 If the time is less than [number] hours, the device is large and requires an installation space equivalent to about three parking spaces. Because it is necessary, its space efficiency is low and its installation costs are high, limiting the possible installation locations. This often happens.

[0068] In contrast, the solid-liquid separation device 70 removes the flocs by filtering them out through the filtration section. Therefore, buoyancy is not required for solid-liquid separation, and even if a certain amount of impurities are mixed into the raw water, it does not affect the separation performance. Since it does not affect the raw water tank (or flow rate adjustment tank), the screen and the processing This eliminates the need for pressure devices, resulting in significant cost reductions and a reduction in installation space. It can do that. In particular, the processing speed is 10m 3 If the time is less than / hours, the installation space for the device itself is the office desk. It requires an area equivalent to about two cars, offers excellent space efficiency, and has low installation costs. It can be suppressed.

[0069] In the pressurized flotation device 80, it is necessary to provide buoyancy to the floc, therefore the pressurized device is By using a pressurized pump to generate fine bubbles and incorporating these bubbles into the floc, the process is carried out. The rock is surfacing, and this surfacing and separation process will take 30 to 60 minutes. Furthermore, In the case of coagulation precipitation, a typical precipitation time of approximately 120 to 180 minutes is required. Furthermore, when performing flotation separation, related equipment such as a pressurized pump unit, along with a corresponding amount of space and power, are required. It is a crucial component, and expertise is also required to maintain the performance of related equipment. Creating bubbles requires pressure adjustment, and this adjustment process, including the coagulation effect, is a specialized task. It has both advantages and high difficulties. Furthermore, in the case of small-scale drainage, in addition to construction costs, maintenance costs are also high. Management costs also become a significant burden, often leading to over-specification.

[0070] In the solid-liquid separation device 70, since coagulation and sedimentation are not performed, a sedimentation time is unnecessary, and the floating portion Since no separation is performed, flotation and separation time is also unnecessary, significantly reducing processing time compared to the pressurized flotation device 80. This can be shortened. Furthermore, because no pressurizing device is used, the technical expertise involved is significantly reduced. With fewer elements and a simplified processing process, it can reduce manpower and eliminate the need for a dedicated manager. It allows for process control that is not necessary, and also contributes to space saving and cost reduction. This makes it possible to adequately handle small-scale wastewater.

[0071] In each of the embodiments described above, as shown in Figures 11 and 19, the first part constituting the filtration section 8 The rate unit 27 and the second plate unit 28 filter each plate A, B, C, and D. The surface is inclined so that it slopes upward as it moves from the upstream side in the transport direction to the downstream side in the transport direction. It is arranged. If the amount of foreign matter contained in the raw water 33 is extremely large or if the raw water 33 is viscous If the water-shedding properties are low, a large amount of solid matter 14 will accumulate on the filter section 8 and the raw water 33 will be affected. The flow of water may be obstructed. In such cases, the filtration surface of the filtration section 8 is water When the water is nearly flat, the water is not sufficiently separated from the raw water 33, and solids with a high water content. In some cases, material 14 may be discharged outside the device. In this embodiment, since the filtration section 8 is inclined, The separation of water from solid matter 14 in the raw water 33 is promoted by the slope, resulting in a high water content. This prevents solid matter 14 from being discharged outside the device.

[0072] In this embodiment, the overlap amount of the first plate unit 27 and the second plate unit 28 A larger value suppresses the flow velocity of the raw water 33 in the filtration section 8, resulting in a higher recovery rate of solid matter 14. However, the filtration surface is covered with solid matter 14 and the dewatering rate gradually decreases. As the filtration surface of the plate is inclined as described above, the parallel operation of the second plate unit 28 The movement allows the solid material 14 to be transported downstream, exposing the filtration surface, which is necessary for dewatering. A filtration surface can be ensured. Furthermore, the raw water 33 is gradually accumulated on the filtration section 8, causing dewatering. As the rate decreases, the water level of the raw water 33 in the filtration section 8 rises due to the aforementioned slope. This ensures a new filtration surface on the downstream side in the transport direction. In other words, the continuously supplied raw water To dewater 33, the length of the plate in the filtration section 8 is utilized to secure the filtration surface (filtration volume). We are collecting 14 solid materials.

[0073] The solid-liquid separation devices 60 and 70 aim to recover solid matter 14 contained in the raw water 33. Therefore, solid matter 14 larger than the gaps g1 and g2 in the filtration section 8 can be recovered. Furthermore, the solids contained include the root hairs of root vegetables (such as burdock and carrots) and animals such as dogs and monkeys. In the case of raw water containing fine and soft substances such as body hair, the flow direction changes as the flow velocity increases. There is a tendency to be easily aligned, that is, a tendency to be easily removed in the thickness direction of each plate. Conversely, the slower the flow velocity is, the more difficult it is to align. That is, when the filtration surfaces of the respective plates are inclined as in each of the above embodiments, the solid matter 14 receives a large resistance on the inclined surface and accumulates on the inclined surface as if it is washed up toward the shore during waves. As a result, even in the case of raw water containing thin and soft substances, dehydration and recovery of the solid matter 14 can be performed satisfactorily.

[0074] In the configuration of each of the above embodiments, the second plate unit 28 is moved in parallel with respect to the first plate unit 27 to eliminate clogging. In other words, clogging occurs if parallel movement is not performed. The present invention utilizes this phenomenon to control the occurrence and elimination of clogging, and thereby enables significant improvement in the recoverability of solid matter while performing normal solid-liquid separation. Here, the smaller the movement amount of the parallel movement, the easier clogging occurs, and the larger the movement amount, the more the occurrence of clogging is suppressed. On the other hand, the filtration rate becomes slower as the movement amount of the parallel movement becomes smaller, and faster as the movement amount becomes larger. Therefore, in the present invention, it is necessary to balance the movement amount of the parallel movement and the filtration rate, which is also affected by the conditions of the raw water (the SS content, BOD content, ratio and size of impurities), but generally, the movement amount of the parallel movement is preferably about 3 to 10 mm.

[0075] In the above embodiment, as the solid-liquid separation devices 60 and 70, a configuration including a motor 9 as a driving means below the filtration unit 8 is shown. However, similar to the technology disclosed in Japanese Patent No. 6894127 or Japanese Patent No. 6967 814, a configuration having a driving means above the filtration unit 8 can be adopted. Alternatively, the solid-liquid separation devices 60 and 70 may have a fixed plate 51. Although the configuration was as described, the fixed plate was similar to the technology disclosed in Japanese Patent Publication No. 3894366. A configuration without 51 is also acceptable. In addition, in the above embodiment, the solid-liquid separation devices 60 and 70 are filters. The configuration shown is that the overpass section 8 is divided into a front plate section 8A and a rear plate section 8B, Similar to the technology disclosed in Japanese Patent Publication No. 3894366, the filtration section 8 is the pre-plate section 8A The configuration may not be divided into the rear plate section 8B.

[0076] Examples of the present invention are as follows: [1] Fixed side, in which multiple plates are arranged at regular intervals in the thickness direction and formed integrally A group of plates, and multiple other plates different from the multiple plates that constitute the fixed-side plate group. A group of movable plates, each plate arranged at regular intervals in the direction of its thickness, forming a single, integrated structure. The movable plate group has a driving means for moving the movable plate group in parallel, and the fixed plate group The plurality of plates and the other plurality of plates of the movable side plate group are mutual The gaps between the multiple plates of the fixed-side plate group and the movable-side plate group. A gap is formed between the aforementioned multiple plates and the fixed-side plate group and the movable The liquid, which is the water content of the object to be processed, is supplied above the moving plate group and falls through the gap. While doing so, the solid material generated by the water falling from the object to be processed is subjected to the parallel transport The filter unit is provided to transport toward the downstream side in the transport direction by motion, and the filter unit is provided to the parallel motion In this configuration, the movable plate group occupies the lowest position relative to the fixed plate group. The configuration and the position in which the movable plate group has the greatest overlap with the fixed plate group. A second embodiment in which the movable plate group occupies the highest position relative to the fixed plate group. A third configuration in which the movable plate group overlaps with the fixed plate group A fourth embodiment occupies the same position as the second embodiment, which has the largest quantity, and the movable side A solid-liquid separation apparatus in which a group of plates is continuously displaced, wherein the material to be processed is supplied to the filtration section. A supply means for supplying the material, and an upper limit detection means for detecting the upper limit position of the material to be processed in the filtration section. A step, a lower limit detection means for detecting the lower limit position of the material to be processed in the filtration section, and the upper Based on the detection results by the limit detection means and the lower limit detection means, the drive means and the supply means The system includes a control means for controlling the operation of the stage, and the control means operates the supply means to the front The material to be processed is supplied to the filtration unit which is stopped in the second or fourth aspect described above. When the upper limit detection means detects the upper limit position, the operation of the supply means is stopped, When the moisture from the object to be processed falls through the gap, the lower limit detection means detects the lower limit position. At that time, the driving means is activated to cause the filtration section to move in parallel, and the fixed This is a solid-liquid separation apparatus characterized by its ability to transport shaped objects. [2] After the filtration unit has completed transporting the solids, the control means will control the filtration unit After stopping the drive means in the second or fourth mode, the filtration The solid-liquid separation apparatus according to [1] is characterized in that the object to be processed is supplied to the section. [3] The upper limit detection means and the lower limit detection means detect the liquid level of the object to be processed, which is a liquid. The solid-liquid separation apparatus according to [1] or [2] is characterized by being a liquid level sensor that detects the liquid level. be. [4] A state detection device that detects when the filtration unit has taken the second or fourth form. A solid-liquid separation device according to any one of [1] to [3], characterized by having a known means . [5] A chemical mixing unit that mixes a chemical that promotes the generation of the solid matter with the object to be treated supplied to the filtration unit A solid-liquid separation device according to any one of [1] to [4], characterized by having . [6] A fixed-side plate group in which a plurality of plates are arranged at regular intervals in the thickness direction and integrally formed, a movable-side plate group in which a plurality of other plates different from the plurality of plates constituting the fixed-side plate group are arranged at regular intervals in the thickness direction and integrally formed, a driving means for moving the movable-side plate group in parallel, and having the plurality of plates of the fixed-side plate group and the plurality of other plates of the movable-side plate group enter each other's intervals to form a gap between the plurality of plates of the fixed-side plate group and the plurality of other plates of the movable-side plate group, and the moisture of the object to be treated, which is a liquid supplied above the fixed-side plate group and the movable-side plate group, falls from the gap while transporting the solid matter generated by the falling of the moisture from the object to be treated in the downstream direction of the transport direction by the parallel movement, and the filtration unit includes in the parallel movement, a first mode in which the movable-side plate group occupies the lowest position with respect to the fixed-side plate group, a second mode in which the movable-side plate group occupies the position where the overlapping amount is the largest with respect to the fixed-side plate group, a third mode in which the movable-side plate group occupies the highest position with respect to the fixed-side plate group, and a fourth mode in which the movable-side plate group occupies the same position as the second mode in which the overlapping amount is the largest with respect to the fixed-side plate group, and the movable-side plate group is to take these modes with respect to the fixed-side plate group and while the moisture of the object to be treated, which is a liquid supplied above the fixed-side plate group and the movable-side plate group, falls from the gap and A solid-liquid separation method using a solid-liquid separation apparatus in which a group of plates is continuously displaced, wherein the second A first that supplies the material to be processed to the filtration unit which is stopped in the first or fourth mode. The process involves stopping the supply of the object to be processed when the object to be processed detects a first position. A second step of allowing the moisture from the object to be processed to fall through the gap, and the object to be processed When the position of 2 is detected, the driving means is activated to transport the solid object by the parallel motion. A third step involves stopping the drive means after the transport of the solid material is complete and then moving the filtration unit forward. The process is characterized by repeatedly performing the fourth step, which results in the second or fourth aspect described above. This is a solid-liquid separation method.

[0077] Although preferred embodiments of the present invention have been described above, the present invention is not limited to such specific embodiments. The claims are not limited to the state described above, and unless otherwise specifically limited in the above explanation, they may be described in the claims. Within the scope of the spirit of the present invention, various modifications and changes are possible. In this embodiment, the materials to be processed include livestock wastewater generated from livestock manure and food processing. Oily wastewater generated from wastewater treatment at sites, metal processing, plating, construction, meat processing plants, and bento box manufacturing. The raw water, such as wastewater generated from various food processing sites such as manufacturing, is shown, but the substances to be treated are... It is not limited to these. Raw water sources include oily sludge and sewage treatment generated from wastewater treatment at various factories, etc. If it contains excess sludge generated from, etc., and is either water or a mixture of water and solids, Any type of wastewater is acceptable. Preferably, it could be from a school lunch wastewater treatment plant, a vegetable cutting plant, a meat processing plant, or a seafood processing plant. Suitable for wastewater from food processing plants and other industrial facilities. The effects described in the embodiments of the present invention exemplify the most preferred effects resulting from the present invention. The effects of the present invention are merely limited to those described in the embodiments of the present invention. isn't it. [Explanation of Symbols]

[0078] 8 Filtration section 9. Driving means (motor) 14. Solids 27 Fixed-side plate group (first plate unit) 28. Movable side plate group (second plate unit) 33. Materials to be treated (raw water) 60,70 Solid-liquid separation equipment 61 Supply means (pump) 62 Upper limit detection means (liquid level sensor) 63 Lower limit detection means (liquid level sensor) 64 State detection means (position detection sensor) 65 Control means 71. Chemical mixing section (coagulation reaction tank)

Claims

1. Multiple plates are arranged at regular intervals in the thickness direction and are integrally formed as a fixed plate A group of plates and a plurality of other plates different from the plurality of plates that constitute the fixed-side plate group. A group of movable side plates, in which the plates are arranged at regular intervals in the thickness direction and are integrally formed, It has a driving means for moving the movable plate group in parallel, The plurality of plates of the fixed-side plate group and the other plurality of plates of the movable-side plate group The plates fit into the aforementioned gap between them, and the plurality of plates of the fixed-side plate group A gap is formed between the movable side plate group and the other multiple plates, and the fixed The liquid supplied above the side plate group and the movable side plate group is the moisture content of the object to be processed. As the material is dropped from the gap, moisture is generated as it falls from the object being processed. The filter unit is equipped with a section that conveys the filtered solid material toward the downstream side in the conveying direction by the aforementioned parallel motion. In the filtration section, during the parallel motion, the movable plate group moves to the fixed plate group A first embodiment in which the lowest position is occupied relative to the movable side plate group and the fixed side plate group A second embodiment in which the position with the greatest overlap is the movable side plate group A third embodiment in which the fixed-side plate group occupies the uppermost position, and the movable-side plate group is The fourth occupies the same position as the second embodiment, which has the largest overlap with respect to the fixed-side plate group. A solid-liquid separation apparatus in which the movable plate group is continuously displaced to take the following configuration, A supply means for supplying the material to be processed to the filtration section, An upper limit detection means for detecting the upper limit position of the object to be processed in the filtration section, A lower limit detection means for detecting the lower limit position of the material to be processed in the filtration section, Based on the detection results by the upper limit detection means and the lower limit detection means, the drive means and The system comprises a control means for controlling the operation of the supply means, The control means is The supply means is activated and the filter is stopped in the second or fourth mode. The material to be processed is supplied to the excess section, and when the upper limit detection means detects the upper limit position, the supply The operation of the supply means is stopped, and the moisture of the object to be processed falls through the gap and the lower limit is detected. When the sensing means detects the lower limit position, the driving means is activated to move the filtration unit in parallel motion. A solid-liquid separation device that transports the solid material by the aforementioned parallel motion.

2. In the solid-liquid separation apparatus according to claim 1, After the filtration unit has completed transporting the solid material, the control means will determine that the filtration unit is the second After stopping the drive means in the manner of the first or fourth manner, the filtration unit A solid-liquid separation apparatus characterized by supplying the aforementioned material to be processed.

3. In the solid-liquid separation apparatus according to claim 1, The upper limit detection means and the lower limit detection means detect the liquid level of the object to be processed, which is a liquid. A solid-liquid separation apparatus characterized by having a liquid level sensor.

4. In the solid-liquid separation apparatus according to claim 1, A state detection hand that detects when the filtration unit has taken the second or fourth form. A solid-liquid separation apparatus characterized by having steps.

5. In the solid-liquid separation apparatus according to claim 1, A drug that promotes the formation of solids is mixed with the material to be processed supplied to the filtration unit. A solid-liquid separation apparatus characterized by having a drug mixing section.

6. Multiple plates are arranged at regular intervals in the thickness direction and are integrally formed as a fixed plate A group of plates and a plurality of other plates different from the plurality of plates that constitute the fixed-side plate group. A group of movable side plates, in which the plates are arranged at regular intervals in the thickness direction and are integrally formed, It has a driving means for moving the movable plate group in parallel, The plurality of plates of the fixed-side plate group and the other plurality of plates of the movable-side plate group The plates fit into the aforementioned gap between them, and the plurality of plates of the fixed-side plate group A gap is formed between the movable side plate group and the other multiple plates, and the fixed The liquid supplied above the side plate group and the movable side plate group is the moisture content of the object to be processed. As the material is dropped from the gap, moisture is generated as it falls from the object being processed. The filter unit is equipped with a section that conveys the filtered solid material toward the downstream side in the conveying direction by the aforementioned parallel motion. In the filtration section, during the parallel motion, the movable plate group moves to the fixed plate group A first embodiment in which the lowest position is occupied relative to the movable side plate group and the fixed side plate group A second embodiment in which the position with the greatest overlap is the movable side plate group A third embodiment in which the fixed-side plate group occupies the uppermost position, and the movable-side plate group is The fourth occupies the same position as the second embodiment, which has the largest overlap with respect to the fixed-side plate group. In one embodiment, a solid-liquid separation device is used in which the movable plate group is continuously displaced in order to take the following configuration. A liquid separation method, The material to be processed is supplied to the filtration unit which is stopped in the second or fourth embodiment. The first step of supplying, and the supply of the object to be processed when the object to be processed detects the first position. A second step is to stop the process and allow the moisture of the object to be processed to fall through the gap, and When the object to be processed detects a second position, the driving means is activated and the parallel motion is performed A third step involves transporting solid material, and after the transport of the solid material is completed, the drive means is stopped. The fourth step of making the filtration section conform to the second or fourth configuration is repeated. Solid-liquid separation method.

Images