JP5889657B2 - Compression separation device - Google Patents

Description

  The present invention relates to a processing apparatus for drainage discharged in a machining process such as polishing sludge and cutting fluid, and in particular, separates solid and liquid in the drainage, compresses the separated solid and discharges it as a briquette. In addition, the present invention relates to a compression / separation apparatus and a compression / separation method that can circulate the separated liquid to a processing step.

  Conventionally, a solid-liquid separation technique for removing solids from waste liquid has been put to practical use in order to reuse waste liquid such as polishing sludge and cutting fluid, or to collect abrasive substances contained in the drainage liquid. . Solid-liquid separation technologies can be broadly divided into methods that use centrifugation, methods that use filters such as separation membranes, and methods that magnetically separate solids whose main component is a magnetic material. Also, a method of using filters in multiple stages has been proposed.

  For example, Patent Document 1 describes a solid-liquid separation technique in which a polishing liquid is supplied into a basket, a solid is pressed against the side wall of the basket by rotating the basket, and then scraped off from the side wall. Patent Document 2 describes a technique for filtering and separating a polishing substance from a polishing liquid of a CMP apparatus by using two types of filters having different meshes in stages. Furthermore, Patent Document 3 describes an apparatus for recovering a magnetic material in a cutting fluid using a permanent magnet.

  However, the method using the filter has a problem of clogging of the filter, and the magnetic separation method has a limitation that the object to be separated is limited to the magnetic material. In addition to these problems, in any of the above-described techniques, the solid after separation contains a considerable amount of moisture, and as such, there is a problem that handling properties during storage and transportation are poor and it is difficult to reuse.

  On the other hand, Patent Document 4 describes a technique for collecting a solid component with a reduced amount of water by performing suction removal of a liquid through a filter and compression of the solid component.

JP 2008-55373 A JP 2002-192466 A JP 2005-254130 A JP-A-5-293737

  However, in the technique described in Patent Document 4, a suction device is required to remove the liquid in the sludge, and in order to prevent sludge from flowing from the sludge supply device into the compression chamber after compression, There is a problem in that the apparatus needs to be pressed from both the top and bottom (or left and right) directions, and the apparatus becomes large. Further, when the amount of the solid component in the sludge is small, the compression of the solid component cannot be performed efficiently.

  The present invention enables stable solid-liquid separation operation of drainage without using a separation membrane or a suction device, and can continuously discharge solid components as briquettes with greatly reduced water content. It is an object to provide a simple compression / separation device.

  The compression / separation device of the present invention that solves the above-described problems is movable in a direction perpendicular to the cylindrical member having a hollow portion and the axis of the cylindrical member, and closes the first end of the cylindrical member. A gate member; a pressing member inserted into the hollow portion from the second end portion of the cylindrical member and slidable in the hollow portion; and the first end portion and the second end portion of the cylindrical member. An opening for introducing the liquid to be processed connected to the side surface between the hollow part and a drainage means communicating with the hollow part, and the liquid to be processed charged into the hollow part is supplied to the pressing member. And a pressure separation device that discharges the liquid in the liquid to be processed through the drainage means and compresses the solid in the liquid to be processed, and the pressing member operates in conjunction with the operation of the gate member. A movement restricting means for restricting the sliding movement; When said gate member is at the standby position to open the first end of said cylindrical member, said pressing member, for limiting the movement toward the first end of the cylindrical member to the second end.

  In the compression / separation device of the present invention, the cylindrical member is preferably arranged so that the axial direction thereof is the horizontal direction.

  In the compression separation device of the present invention, for example, a flange portion is provided at a first end portion of a cylindrical member, and a groove (first liquid channel) is provided at a contact surface between the flange portion end face and the gate member. Further, a second liquid channel communicating with the outside of the hollow portion is provided along the inner surface of the cylinder in the vicinity of the second end portion of the cylindrical member. These liquid flow paths function as liquid discharge paths (drainage means), and discharge between the liquid discharged from the first end of the cylindrical member and the inner peripheral surface of the cylindrical member and the outer peripheral surface of the pressing member. Collect the liquid that will be.

  In the compression separation method of the present invention, the step (1) of filling the hollow portion of the cylindrical member whose one end portion is closed by the gate member with the liquid to be processed and the other end portion of the cylindrical member are inserted. A step (2) of reciprocating the pressed member to compress and form the solid matter in the liquid to be treated, and a drain means for communicating the liquid in the liquid to be treated with the hollow portion of the cylindrical member And the step (2) further comprises the step of moving the gate member when the pressure of the hollow portion reaches a predetermined pressure by the operation of the pressing member, and the cylindrical member. A step (4) of opening one end of the pressing member and a step (5) of restricting the backward movement of the pressing member when the cylindrical member is in the open state.

  According to the present invention, by providing the movement restricting means for the pressing member, it is safe to repeat the two operations of reciprocating in the cylindrical member of the pressing member and opening / closing the first end of the cylindrical member of the guide member. , The solid can be automatically compressed and separated from the liquid to be treated.

  Further, according to the present invention, by providing the drainage means communicating with the hollow portion of the cylindrical member, the liquid discharged during the compression / separation operation can be reliably recovered and can be reused. Further, according to the present invention, since the first and second liquid flow paths are open spaces located at the ends of the cylindrical member, problems such as clogging can be prevented.

The figure which shows the outline | summary of one Embodiment of the compression separation apparatus of this invention. It is a figure which shows the detail of the principal part of the compression separation apparatus of FIG. 1, (a) is the front view containing a partial cross section, (b) is the figure which looked at the cylinder part from the rear end. It is a side view which shows the gate part of the compression separation apparatus of FIG. 1, (a) shows the closed state of a gate, (b) shows the open state of a gate. FIGS. 2A and 2B are diagrams illustrating a stopper portion of the compression separation device of FIG. 1, in which FIG. 1A illustrates a state where movement of the pressing member is restricted by the stopper portion, and FIG. 2B illustrates a state where movement of the pressing member is permitted. It is a figure which shows the detail of the inner cylinder of the compression separation apparatus of FIG. 1, (a) is a side view of an inner cylinder, (b) is a front view of an inner cylinder including partial AA sectional drawing, (c) is FIG. 5 is a partial bottom view of the inner cylinder including a cross-sectional view taken along the line BB. Block diagram explaining the controller It is a figure which shows each operation position of a press member, (a) is an initial position, (b) is a position during compression, (c) is the most advanced position, (d) shows the position restrict | limited by a stopper part. Flow chart showing operation of control unit 60 The figure which shows an example of the recycling system using the compression separation apparatus of this invention

Embodiments of a compression / separation device of the present invention will be described below with reference to the drawings.
FIG. 1 is a diagram showing an overall outline of a compression / separation apparatus, and FIGS. 2 to 6 are diagrams showing details of each part.

  As shown in FIG. 1, the compression / separation apparatus according to the present embodiment includes a cylinder portion 10 having a hollow portion 13 serving as a compression chamber for performing solid-liquid separation and compression of an object to be processed, and the inside of the cylinder portion 10. The compression part 20 provided with the pressing member 21 that reciprocates in the space (hollow part), and the end (first end) of the cylinder part 10 opposite to the end (second end) where the pressing member 21 is inserted. A gate part 30 for opening and closing one end part), a stopper part 40 for restricting the movement of the pressing member 21, a drain part 50 for discharging liquid (water here) discharged from the compression chamber of the cylinder part 10, and each part The control part 60 which controls this is provided.

  In the following description, the end portion of the cylinder portion 10 provided with the gate portion 30 is referred to as a front end portion, and the end portion of the cylinder portion 10 into which the pressing member 21 is inserted is referred to as a rear end portion. This movement is called forward, and the movement toward the rear end is called backward. In addition, the compression / separation device of the present embodiment is a horizontal device in which the axial direction of the cylinder portion 10 is the horizontal direction, and the vertical direction perpendicular thereto is also referred to as the vertical direction.

  As shown in FIG. 2A, the cylinder part 10 is arranged concentrically with a cylindrical outer cylinder 11 having a flange 111 at one end and a flange 121 at one end. And an inner cylinder 12. The flange 111 of the outer cylinder 11 is firmly fixed to the apparatus main body (housing) 100 with bolts or the like. The inner diameter of the outer cylinder 11 is substantially equal to the outer diameter of the inner cylinder 12, so that the inner cylinder 12 is fixed in close contact with the inner peripheral surface of the outer cylinder 11. A packing 13 is inserted between the inner peripheral surface of the outer cylinder 11 and the outer peripheral surface of the inner cylinder 12 so that the space between the outer cylinder 11 and the inner cylinder 12 is airtight. The axial length of the inner cylinder 12 is longer than the axial length of the outer cylinder 11, whereby the flange 121 of the inner cylinder 12 is positioned outside the flange 111 of the outer cylinder 11, and the inner cylinder 12 One end of the outer cylinder 11 opposite to the flange 111 slightly protrudes outward from one end of the outer cylinder 11 opposite to the flange 111.

At the rear end of the outer cylinder 11, as shown in FIG. 2 (b), water that passes through between the outer cylinder 11 and the inner cylinder 12 and between the inner cylinder 12 and the pressing member 21 is discharged. A draining plate 52 (second liquid flow path) for discharging the liquid is fixed.
On the other hand, the end face of the flange 121 of the inner cylinder 12 constitutes the tip of the cylinder part 10, and below that is for sending the compressed solid discharged from the inner cylinder 12 to a storage container (not shown). The discharge member 17 is fixed. A drainage groove (not shown) is formed on the end surface of the flange 121 of the inner cylinder 12. The structure and function of these draining plates 52 and drainage grooves will be described in detail later together with the drainage section 50.

  The cylinder part 10 passes through the outer cylinder 11 and the inner cylinder 12 and supplies wastewater such as polishing sludge and cutting fluid to a space (compression chamber) surrounded by the inner peripheral surface of the inner cylinder 12. An opening 15 for this purpose is formed. The compression / separation device of the present embodiment is a horizontal device in which the pressing member moves in the compression chamber of the cylinder portion 10 in the horizontal direction, so the opening 15 is provided in the upper portion of the cylinder portion 10. In addition, as the object to be processed, the above-mentioned waste liquid may be added as it is, but a pre-processed material by simple solid-liquid separation means such as a cyclone separator or a filter may be input, and in that case, it is more efficient. Solid-liquid separation can be performed. The opening 15 may be introduced into the compression chamber by connecting a container containing drainage to the opening 15 and feeding by its own weight, or between the opening 15 and the drainage supply system. A valve or the like may be installed, and a necessary amount or a constant amount may be charged as necessary.

  As shown in FIG. 1, the compression unit 20 includes a pressing member 21 that reciprocates within the inner cylinder 11 of the cylinder unit 10 and a pressing drive unit 23 that drives the pressing member 21. The pressing member 21 is a solid cylindrical member whose outer diameter is slightly smaller than the inner diameter of the inner cylinder 11 and can slide within the inner cylinder 11. The clearance between the outer peripheral surface of the pressing member 21 and the inner surface of the inner cylinder 11 is about 2/100, where the radius of the pressing member 21 is 100, and the water escape path (the drainage portion 50 of the drainage part 50) that is separated during compression. Part).

  As the pressing drive unit 23, known driving means such as an air cylinder, a hydraulic cylinder, and a motor can be used. However, an air cylinder and a hydraulic cylinder are preferable in that a high pressure is easily generated. In the present embodiment, an air cylinder is used, and in the following description, the pressing drive unit is also referred to as an air cylinder. Air cylinders and the like are inaccurate and have problems such as overruns compared to electrical drive means, but the compression separation device of this embodiment deals with problems such as overruns by providing a stopper 40 as a safety mechanism. doing.

  The rear end portion of the pressing member 21 is fixed to the front end of the air cylinder 23. Inside the cylinder of the air cylinder 23, position sensors (not shown) for detecting the position of the pressing member 21 are provided at at least three locations, and the tip of the pressing member 21 extends from the end surface of the flange 121 of the inner cylinder 12. A slightly projecting position (most advanced position), a position where a part including the tip of the pressing member 21 is inserted into the inner cylinder 12 (initial position), and a position between the most advanced position and the initial position (intermediate position) ) Are detected. At the initial position of the pressing member 21, the tip of the pressing member 21 is in front of the opening 15 of the inner cylinder 12, and the opening 15 communicates with the space inside the inner cylinder 12. The air cylinder 23 is provided with a pressure sensor (not shown) for detecting the pressure applied to the tip of the pressing member 21. Signals from position sensors and pressure sensors provided in the air cylinder 23 are sent to the control unit 60.

  A disc 25 having a diameter larger than the diameter of the pressing member 21 is interposed between the rear end of the pressing member 21 and the tip of the air cylinder 23. The disk 25 prevents the water that jumps out from the rear end side of the pressing member 21 during compression from entering the air cylinder 23, and regulates the movement of the pressing member 21 in cooperation with a stopper portion 40 described later.

  The gate portion 30 includes a gate 31 that opens and closes an end portion of the cylinder portion 10 (inner cylinder 11), and an elevating cylinder 33 that raises and lowers the gate 31. The elevating cylinder 33 is fixed to the apparatus main body 100 by a support member 35 at a position that does not hinder the movement of the movable portion 331, and the gate 31 is fixed to the tip of the movable portion 331. As a drive source for the elevating cylinder 33, a hydraulic cylinder, an air cylinder, a motor, or the like can be used.

  The gate 31 is a thick plate-like member that can withstand pressure during compression. When the workpiece is compressed in the cylinder portion 10, as shown in FIGS. 3 (a) and 3 (b), the cylinder 31 The tip of the portion 10 is closed (hereinafter, this state is referred to as a closed state), is raised after compression, the tip is opened (hereinafter, this state is referred to as an open state), and the compressed solid can be discharged from the tip. To.

  As shown in detail in FIG. 4, the stopper portion 40 guides movement of the stopper pin 41, a stopper pin 41 for restricting the return of the pressing member 21 to the initial position, a solenoid 43 that drives the stopper pin 41, and the stopper pin 41. And a guide block 45 to be operated. The solenoid 43 is fixed in a housing 44 fixed to the main body 100, and a stopper pin 41 is fixed to the actuator (plunger). The guide block 45 is formed with a hole through which the stopper pin 41 passes, and guides the movement of the stopper pin 41 in the vertical direction. In this embodiment, the guide block is composed of two separable blocks. A vertical groove through which the stopper pin 41 passes is formed on the flat surface of one block, and the vertical groove is formed on the flat surface of the other block. By joining the two blocks so as to close, a guide hole is formed. The guide block 45 is firmly fixed to the side plate of the main body 100 by bolts that couple the two blocks.

  The solenoid 43 operates in conjunction with the raising / lowering cylinder 33 of the gate 31. When the gate 31 is opened, the stopper pin 41 is lowered as shown in FIG. The movement of the disk 25 fixed to the rear end in the axial direction is limited, and the pressing member 21 to which the disk 25 is fixed is prevented from moving to the initial position. At the position where the stopper pin 41 restricts the movement of the disk 23, the pressing member 21 is retracted from the most advanced position but is in a position to close the opening 15. As a result, the workpiece is prevented from flowing into the inner cylinder 12 from the opening 15 and being discharged from the end of the opened cylinder portion. In the closed state in which the gate 31 closes the end of the inner cylinder 12, the solenoid 43 raises the stopper pin 41 to return the pressing member 21 to the initial position and the initial position, as shown in FIG. Allows movement from the tip position to the tip position.

  The drainage unit 50 includes a toy 51 fixed to the bottom of the apparatus main body 100. The toy 51 alternately partitions a horizontal drainage path with a plurality of vertical partitioning plates 511 as shown in FIG. It has a labyrinth structure. The liquid discharged from the cylinder unit 10 and collected in the toy 51 passes through the drainage path of the labyrinth structure, so that the remaining solids are precipitated at the bottom of the toy, and the toy 51 is further separated. Is discharged outside.

  In addition to the toy 51 described above as the drainage unit 50, the compression separation device of the present embodiment is provided with two systems of discharge paths for guiding the liquid discharged from the cylinder unit 10 to the toy 51. One of them is a discharge path from the end face of the flange 121 of the inner cylinder 12, and the other one passes through the gap between the outer cylinder 11 and the inner cylinder 12 and the gap between the inner cylinder 12 and the pressing member 21, This is a discharge path that passes through a draining plate 52 provided at the rear end of the cylinder portion 10. The discharge path on the end face of the flange 121 is constituted by a groove provided on the end face.

  FIG. 5 shows details of the inner cylinder 12. 5A is a view of the inner cylinder 12 as viewed from the end face side of the flange 121 (a side view of the inner cylinder 12), and FIG. 5B is a front view including a partial cross-sectional view along AA. c) is a partial bottom view including a BB partial cross-sectional view.

  As shown in FIGS. 5A and 5C, the end surface of the flange 121 is formed with two bolt holes 123 along the line AA for fixing the inner cylinder 12 to the outer cylinder 11. The groove 53 in which a plurality of grooves 53 are formed in a direction (vertical direction) orthogonal to the AA line extends from the inner periphery of the inner cylinder 12 to the outer periphery of the flange 121. In the figure, three grooves are formed, but the number of grooves is not limited to three. The width and depth of the groove 53 are designed to be a size that allows liquid to pass through under pressure, but prevents solids contained in polishing sludge, cutting fluid, and the like from passing through. However, for the purpose of this apparatus, it is not necessary here to completely separate the solid and the liquid, and unlike the filter which does not completely pass the solid, the groove 53 passes some solid along with the liquid passing through the groove. May be. The specific size of such a groove is, for example, a width of about 3 to 5 mm, a depth of 0.1 to 1.0 mm, and preferably about 0.2 to 0.8 mm. The liquid that passes through the groove 53 and reaches the outer periphery of the flange 121 falls into the toy 51 disposed under the liquid due to its own weight.

  Further, as shown in FIGS. 2B and 5C, a draining plate 52 is fixed to the rear end portion of the outer cylinder 11. The rear end of the inner cylinder 12 is located at the rear end from the draining plate 52. From the hollow portion of the cylinder portion 10, water passes through the gap between the inner wall surface of the outer cylinder 11 and the outer wall surface of the inner cylinder 12 in the opening 15 and the gap between the pressing member 21 and the inner wall surface of the inner cylinder 12. Extruded. The water pushed out from the rear end of the cylinder part 10 through both paths is guided by the draining plate 52 and falls to the toy 51 installed at the lower part of the main body 100.

  The drainage section 50 of the present embodiment includes the two drainage paths described above, that is, the drainage path that passes through the groove on the end surface of the flange 121 of the inner cylinder 12, and the draining plate 52 formed at the rear end of the cylinder section 10. The liquid discharged through the toy 51 and the liquid discharged by the compression operation of the cylinder portion 10 are discharged from the apparatus in a state in which the solid in the liquid is substantially removed.

  The control unit 60 controls various operations of the respective units described above, and inputs signals from position sensors 61 to 63 and a pressure sensor 65 provided in the air cylinder 23 of the compression unit 20 as shown in FIG. Then, the operation of the air cylinder 23, the raising / lowering cylinder 33 of the gate 30 portion, the solenoid 43 of the stopper portion 40, and the like are controlled. The position sensor 61 is a sensor that detects the initial position of the pressing member, the position sensor 62 is a sensor that detects an intermediate position, and the position sensor 63 is a sensor that detects the most advanced position.

  The operation of the compression / separation apparatus having the above configuration will be described below with reference to FIGS. FIG. 7 is a diagram illustrating a state in which the pressing member is operating, and FIG. 8 is a flowchart illustrating the operation of the control unit 60.

  In the initial state, as shown in FIG. 7A, the pressing member 21 is in an initial position where a part including its tip is inserted into the inner cylinder 12, and the gate 31 is lowered to the flange of the inner cylinder 12. Closed with the side opening closed. The solenoid 43 is at a position where the stopper pin 41 is raised. In this state, the liquid to be processed is filled into the inner cylinder 12 from the opening 15 (step S1).

  Next, the operation of the air cylinder 23 is started, and the pressing member 21 is moved toward the distal end of the inner cylinder 12 (step S2). By the advance of the pressing member 21, the moisture in the liquid to be processed filled in the inner cylinder 12 passes through the groove 53 on the side surface of the flange 121 of the inner cylinder 12 and the draining plate 52 at the rear end of the outer cylinder 11 to the toy 51. The solid matter that is discharged and contains the remaining water is pressed against the gate 30.

  Here, when the position sensor 62 detects that the pressing member 21 has come to the intermediate position (step S2), the control unit 60 compares the pressure value P detected by the pressure sensor 65 at that time with a preset value P0 ( Step S3). The pressure P0 is a pressure at an intermediate point required to be compressed to a sufficient amount and hardness so that the solid in the liquid to be treated is discharged as a compressed solid (briquette), and is obtained from an empirical value in advance. The value is set in the control unit 60. If the pressure P is P <P0, it means that the liquid to be processed sufficient to make briquettes is not filled. Therefore, the pressing member 21 is retracted to the initial position (step S5), and the opening 15 is opened. The liquid to be treated is refilled in the inner cylinder 12 and the pressing member 21 is moved again (S1, S2). The movement and retraction of the pressing member 21 to the intermediate position and the refilling of the liquid to be processed are repeated until the pressure P at the intermediate position becomes equal to or higher than P0.

  If the pressure value P at the intermediate point is equal to or higher than the set value P0, it is determined that the amount of the liquid to be processed is sufficient, and the pressure detected by the pressure sensor 65 reaches a predetermined pressure (or the air cylinder) The pressing member 21 is advanced (until the maximum pressure is reached) (step S6). The pressure received by the gate 31 at this time is, for example, 125 kg. By this pressing, the solid in the inner cylinder 12 is briquetted as shown in FIG.

  When the pressure detected by the pressure sensor 65 reaches the maximum pressure (step S7), the pressurization by the air cylinder 23 is stopped and the solenoid 43 is operated to lower the stopper pin 41 (step S8). The downward movement of the pressing member 31 is restricted by the lowered stopper pin 41. This prevents the pressing member 31 from moving backward from the restricted position due to the pressure in the inner cylinder 12. Since the pressing member 31 whose movement is restricted covers the opening 15 of the inner cylinder 12, the liquid to be treated does not newly flow from the opening 15.

  In this state, the pressing member 31 is retracted by a small amount (step S9), and then the gate 31 is raised to open the gate 31 (step S10). The retreat of the pressing member 31 is performed to peel the briquette pressed by the gate 31 from the gate 31, and may be moved by a predetermined distance or at an intermediate position corresponding to the retreat position. A position sensor may be provided, and the backward movement of the pressing member 31 may be stopped by a signal from the position sensor.

  Next, the pressing member 31 is advanced again (step S11) and stopped at the tip position where the tip slightly protrudes from the end surface of the inner cylinder 12, as shown in FIG. That is, the control unit 60 stops the operation of the air cylinder 23 when the position sensor 63 detects that the pressing member 31 is at the most advanced position (step S12). In this position, the briquette adhering to the tip of the pressing member 31 is in a position protruding from the end surface of the inner cylinder 12, and the briquette is peeled off from the tip of the pressing member 31 by its own weight, and the briquette storage portion ( (Not shown).

After a certain switching time, the pressing member 31 is retracted and the elevating cylinder 33 is driven to close the gate 31 (steps S13 and S14). Here, as shown in FIG. 7D, while the gate 31 is in the open state, the stopper pin 41 is in the lowered position, and the pressing member 31 is not retracted from the restricted position. Accordingly, it is possible to prevent the object to be processed from entering the inner cylinder 12 from the opening 15 and spilling out from the tip of the inner cylinder 12. When the gate 31 is closed, the stopper pin 41 is raised (step S15). As a result, the pressing member 31 can continue to retreat and return to the initial position (step S16).
By repeating the above steps S1 to S16 (steps S17 and S18), the liquid to be processed can be automatically and continuously separated into solid and liquid.

  In addition, the drive means of each part used by the above embodiment, ie, the press drive part (air cylinder) 23, the raising / lowering cylinder 33, and the solenoid 43, is an example, respectively, and can be replaced with another well-known drive means. . For example, as a lifting cylinder, an electric drive means such as a step motor can be used in addition to a hydraulic cylinder and an air cylinder. It is also possible to use an electromagnetic valve other than the solenoid or an electric drive means.

  As described above, according to the compression / separation apparatus of the present embodiment, it is possible to continuously process waste liquid such as polishing sludge and cutting fluid, and a compressed product (briquette) in which a solid portion is compressed from the waste liquid. ) Can be taken out automatically and easily. Further, when the liquid to be treated is polishing sludge or cutting fluid, the water discharged at the time of compression can be circulated and used for polishing or cutting, and water can be effectively used.

FIG. 9 shows an example of a recycling system in which the compression / separation device of the present invention is incorporated in a polishing process or a processing process using a cutting fluid.
As an example, this system includes a polishing device 3, a concentration device 2 that concentrates the drainage discharged from the polishing device 3, a compression separation device 1 that compresses and separates polishing sludge discharged from the concentration device 2, and an illustration is omitted. And a storage means provided as necessary. The compression separation device 1 of the present invention described above is used for the compression separation device 1.

  A polishing liquid containing water or an abrasive is supplied to the polishing apparatus 3 to polish metal or plastic. A large amount of drainage discharged after polishing is sent to the concentration device 2. The concentrating device 2 separates the solid and the liquid in the drainage liquid using precipitation or centrifugation. The supernatant liquid of the precipitate or the liquid separated by centrifugation is reused as the water for the treated polishing liquid after further solid-liquid separation treatment and pH adjustment as necessary.

  Polishing sludge containing a large amount of water separated by the concentration device 2 is supplied to the compression separation device 1. Specifically, the inner cylinder 12 is filled from the opening 15 of the compression / separation device 1, moisture is removed by the compression operation of the pressing member in the inner cylinder 12, and collected as a briquette. When the material to be polished is a metal, briquettes contain a lot of metals and can be used as recycling resources. It is also possible to separate the metal or plastic and recover the abrasive. On the other hand, the waste water discharged from the compression / separation device 1 is treated as necessary, and used as the polishing liquid of the polishing device 3, similarly to the waste water discharged from the concentration device 2.

  According to this recycling system, resources can be effectively utilized by reusing abrasives, metals, water, and the like. The same applies when the polishing apparatus 3 is replaced with a machining apparatus.

  According to the present invention, a compression / separation apparatus capable of reusing resources with a simple configuration is provided.

DESCRIPTION OF SYMBOLS 10 ... Cylinder part, 11 ... Inner cylinder, 12 ... Outer cylinder, 121 ... Flange, 13 ... Packing, 15 ... Opening part, 17 ... Discharge member, 20 ... Compressor, 21 ... Pressing member, 23 ... Drive mechanism, 30 ... Gate, 31 ... Gate, 33 ... Elevating cylinder, 40 ... Stopper, 41 ... Stopper pin , 43 ... solenoid, 45 ... guide block, 50 ... drainage part, 51 ... toy, 52 ... draining plate (second liquid flow path), 53 ... groove (first) Liquid channel), 60... Control unit, 61 to 63.

Claims (6)

A cylindrical member having a hollow portion; a gate member movable in a direction perpendicular to the axis of the cylindrical member; and closing the first end of the cylindrical member; and a second end of the cylindrical member And a pressing member that can be slid in the hollow portion and a liquid to be treated connected to a side surface between the first end portion and the second end portion of the cylindrical member. An opening for injecting into the part, and a drainage means communicating with the hollow part, and the liquid in the liquid to be processed is pressed by pressing the liquid to be processed in the hollow part with the pressing member. A compression / separation device that discharges through a drainage means and compresses a solid in the liquid to be treated,
A movement restricting means for restricting movement of the pressing member sliding in conjunction with the operation of the gate member;
The movement restricting means is provided in a stopper pin that penetrates the cylindrical member and is movable in a direction perpendicular to the axial direction of the cylindrical member, a pin driving mechanism that drives the stopper pin, and the pressing member. when in conjunction with the stopper pin and a regulating portion for regulating the movement of the pressing member, wherein the gate member is at the standby position to open the first end of said cylindrical member, said pressing member, said cylindrical member A compression / separation device that restricts movement from the first end to the second end. The compression separation device according to claim 1,
The compression / separation apparatus according to claim 1, wherein an axial direction of the cylindrical member is a horizontal direction, and the gate member is movable in a vertical direction. The compression separation device according to claim 1 or 2,
The cylindrical member has a flange portion on the first end portion side, and a first liquid flow path as the drainage means is formed on a contact surface between the end surface of the flange portion and the gate member. A compression separation device characterized by comprising: The compression separation device according to any one of claims 1 to 3,
The cylindrical member is formed with a second liquid flow path formed between the inner peripheral surface of the hollow portion and the outer peripheral surface of the pressing member in the vicinity of the second end portion. Separation device. The compression separation device according to claim 3 or 4,
The compression / separation apparatus according to claim 1, wherein the drainage means includes a liquid reservoir for receiving the liquid discharged from the first liquid channel and / or the second liquid channel. The compression separation device according to claim 1 ,
The compression / separation apparatus according to claim 1, wherein the restricting portion provided in the pressing member is a disk fixed to the pressing member, and the diameter of the disk is larger than the diameter of the pressing member.

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