JP2007029854A - Solid-liquid separation method and apparatus for slurry material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a solid-liquid separation method for a slurry material solidified even if the slurry material is difficult to solidify by compression such as honing sludge, capable of avoiding contaminating a liquid component recovered from the slurry material with a drug for accelerating solidification and also excellent in solidification workability, and an apparatus. <P>SOLUTION: The apparatus is used which includes a mold 1 forming an internal diameter face into a cylindrical face shape, a gate 2 switchably closing the one end opening of this mold 1, and a pressure rod 3 slidably fitted in the mold 1 and pressing the slurry material S in the mold 1 to the gate 2 side to compress it. The tip end surface of the pressure rod 3 and the internal surface of the gate 2 may have the arrangement fibrous and paper filters 4 and 5 for solid-liquid separation. After the slurry material S in the mold 1 is compressed, while a compressed body is held in the mold 1, an adhesive or a curing agent is injected into the compressed body by an injection head 45 to solidify the compressed body. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  This invention is a solid component from a slurry-like body mixed with a machining fluid and powdered processing waste produced by honing, super processing, lapping, grinding, etc., or from a slurry-like body produced by wood processing etc. The present invention relates to a solid-liquid separation method and apparatus for a slurry-like body that separates and solidifies a liquid component.

In grinding and polishing, powdery processing waste such as grinding waste is generated. This powdery processing waste is discharged out of the machine in a slurry-like body mixed with a processing fluid such as coolant, that is, in a sludge state. The discharged sludge is separated into solid and liquid by filtration, low pressure filter press, etc., and the processing liquid is recovered and reused.
In solid-liquid separation methods such as filtration and low-pressure filter pressless, the liquid content is high even after separation, and not only the processing liquid cannot be recovered sufficiently, but also the concentrated sludge concentrated by solid-liquid separation is recycled. In the past, landfill processing was performed as industrial waste.

In order to solve such a problem, as shown in FIG. 10, the grinding sludge is filled with a concentrated sludge S ′ into a cylindrical mold 51 and squeezed with a pressure rod 53 to form a briquette shape. Various types of solidifying materials have been proposed (for example, Patent Document 1) and have already been put into practical use. The other end of the mold 51 is closed by a gate 52, and the solidified material is pushed out by a pressure rod 53 by opening the gate 52.
JP 2001-300597 A

  The grinding sludge solidifying device using the cylindrical mold 51 and the pressure rod 53 can be used for grinding sludge that is relatively coarse and easily entangled with processing waste, but the following sludge is used. Can not be used. For example, it cannot be used for honing sludge, super sludge, lapping sludge, and bearing grinding sludge (roller, steel ball).

  This is because the processing waste flows out together with the liquid components from the mechanical gaps δ1, δ2 of the processing portion such as between the mold 51 and the pressure rod 53 and the gate 52 because the processing waste is fine or round and difficult to entangle. It is because it ends. That is, general grinding scraps are relatively large and in the form of yarn scraps, so that they are easily entangled and solidified easily, and flow out of the mechanical gaps δ1, δ2 of the processed parts. hard. However, in the honing sludge, the processing waste is round and does not get entangled, and in the super processing or lapping processing sludge, the processing waste is very fine. The processing grinding sludge of bearing rolling elements is also fine. Therefore, the above-described solidifying device for grinding sludge cannot be used.

  The outflow of the processing waste from the mechanical gaps δ1, δ2 of the processing part not only makes solidification difficult, but also prevents the processing fluid from being reused because the processing waste is mixed with the recovered liquid component. The process which filters the collect | recovered processing liquid again is required.

  In addition, when using a grinding sludge solidification device for honing sludge solidification, etc., it is also possible to fix a metal filter or the like to prevent the machining waste from flowing out from the mechanical gap of the processed part. Has been tried. However, since stable filtration cannot be performed due to clogging, it is necessary to periodically replace the filter, and maintenance work is troublesome.

  As other sludge treatment methods such as honing processing, there are methods using a low pressure filter press that allows the filter to pass by air pressure in a sealed chamber using a belt-like filter, a precipitation device, and the like. However, none of them can sufficiently reduce the liquid content of sludge, and the precipitation device can reduce the liquid content only to about 50 to 80%. Therefore, the recovery efficiency of the working fluid is poor and it is difficult to recycle the remaining concentrated sludge.

  As a method of facilitating immobilization by solid-liquid separation, a method of solidifying by pressing after mixing a curing agent with a slurry-like body has been proposed. However, when the hardener is mixed and the slurry is squeezed, the recovered liquid component is mixed with the hardener and cannot be reused. Since honing liquids are expensive, it is uneconomical to discard them without reusing them, and the burden on the environment also increases.

  The object of the present invention is to be able to solidify even a slurry that is difficult to be solidified by pressing, and to prevent the liquid component recovered from the slurry from being contaminated with a chemical for promoting solidification. It is an object to provide a solid-liquid separation method and apparatus for a slurry-like body that is also excellent in the operability of conversion.

The solid-liquid separation method of the slurry-like body of the present invention is a method for separating the slurry-like body into a solid component and a liquid component, and a mold in which the inner surface is formed into a cylindrical surface and the slurry-like body is charged And a gate that closes one end opening of the mold so as to be openable and closable, and a pressure rod that is slidably fitted into the mold and presses the slurry-like body in the mold against the gate. The slurry-like body in the mold is squeezed with the pressure rod to form a squeezed body, and an adhesive or a curing agent is injected into the squeezed body while the compressed body is placed in the mold. And it is the method of solidifying a pressing body.
In addition, the slurry-like body said by this specification says the thing with which fine solid and the liquid were mixed, and is the meaning containing sludge.

According to this method, since the adhesive or the curing agent is injected, even if the solid component contained in the slurry is difficult to solidify, for example, fine or difficult to entangle, the adhesive Alternatively, it can be solidified with a curing agent. Moreover, since the cylindrical mold and the pressure rod are used, the slurry-like body filled in the mold can be squeezed with a strong pressure. Therefore, the liquid component can be highly squeezed out from the slurry-like body.
Since the injection of the adhesive or curing agent is performed after the slurry body is squeezed in the mold, the adhesive is applied to the liquid component squeezed out by squeezing unlike the case where the adhesive or the curing agent is mixed before squeezing. A clean liquid component can be recovered without mixing with a curing agent. In addition, after the slurry-like body in the mold is squeezed, the compressed body is discharged from the mold in an incompletely solidified state in order to inject the adhesive or curing agent while the compressed body is still in the mold. This is unnecessary and excels in workability.

In the method of the present invention, the gap between the tip outer periphery of the pressure rod and the inner diameter surface of the mold and the gap between the contact surface of the gate and the mold are closed on the tip surface of the pressure rod and the inner surface of the gate. You may make it squeeze the slurry-like body in the said metal mold | die with the said pressure rod in the state which has arrange | positioned the fibrous filter for liquid separation.
Thus, when the slurry-like body in the mold is squeezed with the filter disposed on the tip surface of the pressure rod and the inner surface of the gate, the solid component in the slurry-like body is fine or entangled Even if the shape is difficult, the filter prevents the solid component from flowing out from the gap between the mold and the pressure rod or the gate.
For example, the filter is extruded with the pressure rod together with the compressed body remaining in the mold by pressing, and a new filter is used for each pressing, so that the problem of filter clogging does not occur, and the filter is replaced. Maintenance work can be saved. Since the filter is discharged together with the compressed body for each pressing process, it is only necessary to put it in a mold, and a complicated operation such as an attachment operation is not required, and the filter can be easily loaded into the mold. The filter is in a state of adhering to the compressed body, but by appropriately selecting the material of the filter, there is no problem such as mixing of different components, and the compressed body can be reused as, for example, a steelmaking raw material with the filter attached. Can do. In addition, a new filter is required for each squeezing, but it becomes possible to reuse the solid component of the slurry-like body that could not be used conventionally, the recovery rate of the liquid component is improved, and the recovered processing Considering the fact that liquid filtration is unnecessary, the consumption of the filter is not a problem in terms of environment and cost. The filter may be a paper filter. A paper-like filter is easy to handle.

The solid-liquid separator for a slurry-like body according to the present invention is an apparatus for separating a slurry-like body into a solid component and a liquid component, and a mold in which the inner surface is formed into a cylindrical surface and the slurry-like body is charged And a gate that closes one end opening of the mold so as to be openable and closable, and a pressure rod that is slidably fitted into the mold and presses the slurry-like body in the mold against the gate. After pressing with the pressure rod, after the pressure rod escapes from the mold, an adhesive or a curing agent is injected into the slurry-like pressed body compressed with the pressure rod in the mold. Injection means.
According to the solid-liquid separation device of this configuration, it can be used in the above-described solid-liquid separation method of the present invention, and the above-described effects of the present invention method, that is, even if it is a slurry-like body that is difficult to solidify by pressing, The liquid component recovered from the slurry can be prevented from being contaminated with a chemical for promoting solidification, and the solidification workability is excellent.

In the solid-liquid separator according to the present invention, the mold, the gate, and the pressure rod are provided on the tip surface of the pressure rod and the inner surface of the gate, and a gap between the outer periphery of the tip of the pressure rod and the inner surface of the mold. , And in a state where a fibrous filter for solid-liquid separation that closes the gap between the contact surfaces of the gate and the mold is disposed, the slurry-like body in the mold is compressed by the pressure rod, The solid component remaining in the mold may be extruded with the pressure rod together with the filter. The filter may be a paper filter.
In the case of such a configuration using a filter, the solid component flows out from the gap between the mold and the pressure rod and the gate even if the solid component in the slurry is fine or has a shape that is difficult to get entangled. This is prevented by the filter, so that solidification is further facilitated, and the liquid component to be recovered can be prevented from being mixed.

The solidified product of the slurry-like body of the present invention is a solidified product obtained by solidifying the slurry-like body into a columnar shape by pressing, and is obtained by injecting an adhesive or a curing agent in a compressed state.
According to the solidified material having this configuration, since the adhesive or the curing agent is injected, the solid component contained in the slurry-like body is difficult to solidify, for example, a fine one or a shape that is difficult to be entangled. However, it can be solidified by an adhesive or a curing agent. Since the adhesive or curing agent is injected after squeezing, it is not mixed with the liquid component recovered at the time of squeezing, and a beautiful liquid component can be recovered from the slurry.

  In the solidified product of the slurry-like body of the present invention, a paper-like filter may be attached to both end faces. In the case of this configuration, by using the filter at the time of squeezing, even if the solid component is fine or has a shape that is difficult to be entangled, solidification by solid-liquid separation is possible, and the solidification process is performed. Easy to do.

  The solid-liquid separation method of the slurry-like body of the present invention is a method for separating the slurry-like body into a solid component and a liquid component, and a mold in which the inner surface is formed into a cylindrical surface and the slurry-like body is charged And a gate that closes one end opening of the mold so as to be openable and closable, and a pressure rod that is slidably fitted into the mold and presses the slurry-like body in the mold against the gate. The slurry-like body in the mold is squeezed with the pressure rod to form a squeezed body, and an adhesive or a curing agent is injected into the squeezed body while the compressed body is placed in the mold. However, since it is a method of solidifying the pressed body, it can be solidified even if it is a slurry-like body that is difficult to solidify by pressing, and the liquid component recovered from the slurry-like body is a drug for promoting solidification It can avoid contamination and has excellent workability for solidification .

  The solid-liquid separator for a slurry-like body according to the present invention is an apparatus for separating a slurry-like body into a solid component and a liquid component, and a mold in which the inner surface is formed into a cylindrical surface and the slurry-like body is charged And a gate that closes one end opening of the mold so as to be openable and closable, and a pressure rod that is slidably fitted into the mold and presses the slurry-like body in the mold against the gate. After pressing with the pressure rod, after the pressure rod escapes from the mold, an adhesive or a curing agent is injected into the slurry-like pressed body compressed with the pressure rod in the mold. Therefore, even if it is difficult to solidify by squeezing, it can be solidified, and the liquid component recovered from the slurry is soiled with a chemical for promoting solidification. Can be avoided, and the workability of solidification is excellent

An outline of the first embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, the slurry-like solid-liquid separator includes a mold 1 having a cylindrical inner surface, a gate 2 that closes one end opening of the mold 1 so as to be openable and closable, And a pressurizing rod 3 that is slidably fitted into the mold 1 and presses the slurry-like body S put into the mold 1 against the gate 2 side.
Moreover, as shown in FIG. 3, the nozzle head 45 which is an injection | pouring means which inject | pours the adhesive agent A or a hardening | curing agent with respect to the pressing body of the slurry-like body S in the metal mold | die 1 is provided.

  In FIG. 1, this solid-liquid separation device includes a tip end surface 3 a of the pressure rod 3 and an inner surface 2 a of the gate 2, a gap d 1 between the outer periphery of the tip end of the pressure rod 3 and the inner diameter surface of the mold 1, and the gate 2. In a state where the fibrous filters 4 and 5 for solid-liquid separation that close the gap d2 between the contact surfaces of the mold 1 and the mold 1 are disposed, the slurry-like body S in the mold 1 is squeezed by the pressure rod 3, The solid component remaining in the mold 1 by this pressing is pushed out by the pressure rod 3 together with the filters 4 and 5. The mold 1, the gate 2, and the pressure rod 3 are only required to be able to use the filters 4 and 5 as described above. It does not have to be applied. The gap d1 is emphasized in the figure and is, for example, 0.1 mm or less.

  The mold 1 may be either in a standing posture or a lateral posture, but in this embodiment, it is in a standing posture. The gate 2 is configured to open and close the lower end opening of the mold 1 by sliding in the mold diameter direction along the lower end face of the mold 1. The gate 2 may be a plunger type (such as the gate 52 of FIG. 10) that can be inserted into and removed from one end of the mold 1.

  The pressure rod 3 is driven back and forth by a pressure device, which will be described later. The pressure rod 3 can be inserted into and removed from the mold 1 from the upper end of the mold 1 and the compressed body of the slurry-like body S inside the gate 2 is opened. It has an extrudable stroke. The pressurizing apparatus may be a servo motor as a drive source, or may be a hydraulic type such as a hydraulic cylinder.

The nozzle head 45 of FIG. 3 is inserted into the mold 1 after the slurry-like body S is squeezed and the pressure rod 3 of FIG. 1 is extracted from the mold 1, and the adhesive A or the curing agent is slurried. It is means for injecting into the compressed body of the shaped body S. The nozzle head 45 is formed into a rod shape having an outer diameter that can be inserted and removed in a state of being substantially fitted in the mold 1, and has a storage chamber 46 for storing the adhesive A or the curing agent therein. A plurality of nozzle holes 47 that open from the storage chamber 46 are provided in the pressing surface 45 a of the nozzle head 45. In addition, a pressurized gas supply path 48 for sending a gas such as pressurizing air to the space above the adhesive A or the curing agent in the storage chamber 46 is provided.
The hardening agent said here is the meaning containing a coagulant. As the adhesive A, an epoxy resin type, a water-soluble urethane foam, or the like can be used. In addition, since it is necessary to inject | penetrate and inject | pour the filter 4, the adhesive agent A or the hardening | curing agent of the material which can permeate | transmit the filter 4 is used.

  Slurry bodies S to be treated include honing sludge in steel, super sludge, lapping sludge, bearing rollers, finish grinding sludge of rolling elements such as steel balls, and other general grinding processes. Sludge etc. can be used. In the honing sludge, the particle size of the processing waste is about 1 to 50 μm, and in super processing, it is in submicron units. The steel material to be subjected to each of the above processes may be subjected to a heat treatment such as quenching. In addition to the above, the slurry-like body S to be treated may be dehydrated sludge or a solid component made of super steel or glass powder. In particular, since a material made of super steel or glass powder is difficult to be solidified only by pressing, the method of injecting the adhesive A or the like is effective.

The upper and lower filters 4 and 5 are paper-like ones such as paper filters or cloth filters. In addition, the filters 4 and 5 may be in the form of cotton or sponge. The material of the filters 4 and 5 may be made of chemical fiber, but is preferably made of plant fiber. The shape of the filters 4 and 5 is, for example, circular, and is larger than the inner diameter of the mold 1 to the extent that rising portions 4 a and 5 a are generated along the inner diameter surface of the mold 1 when loaded in the mold 1. Large diameters are used. The roughness of the filters 4 and 5 is selected according to the slurry S to be processed. When the slurry-like body S is formed by honing of a steel material, a material having an air flow rate V (cm ³ / cm ² s) of about 10 to 300 is selected.

A solid-liquid separation method using the solid-liquid separation device having the above configuration will be described.
The lower filter 5 is loaded on the bottom of the mold 1 with the lower end opening of the mold 1 closed by the gate 2 and the pressure rod 3 coming out of the mold 1 upward. Thereafter, the slurry-like body S is introduced into the mold 1 from the upper end opening, and the upper filter 4 is loaded so as to cover the slurry-like body S that has been introduced.
With the slurry S thus charged and the upper and lower filters 4 and 5 loaded, the pressure rod 3 enters the mold 1, and the slurry in the mold 1 is pressed by the pressure rod 3. The body S is squeezed.

When the pressing is completed, the pressure rod 3 is extracted, the nozzle head 45 is pressed against the pressing body of the slurry-like body S as shown in FIG. 3, and the adhesive A or the curing agent is injected into the pressing body. By this injection, solidification of the pressed body, which has been insufficiently solidified only by pressing, is promoted. Moreover, about the pressing body in which temporary solidification was performed by pressing, it becomes the solid solidified substance SB which does not collapse easily at the time of handling.
After the slurry-like body S is thus solidified, the gate 2 is opened and the solidified product SB is discharged from the mold. This discharge is performed by pushing the pressure rod 3 again after discharging the nozzle head 45 to discharge the solidified product SB from the lower end opening. Instead of the pressure rod 3, the nozzle head 45 may be further pushed to discharge the solidified product SB. Moreover, you may make it extrude by the extrusion means different from these.

According to this solid-liquid separation method, liquid components such as oil, water, and other processing liquids squeezed from the slurry-like body S in the pressing process of FIG. And it discharges | emits from the clearance gap d2 between the contact surfaces of the metal mold | die 1 and the gate 2. FIG. At this time, since the gaps d1 and d2 are closed by the filters 4 and 5, the liquid component squeezed out from the slurry-like body S is not directly discharged from the gaps d1 and d2, and the filter 4 , 5 will be discharged.
For this reason, even if the solid component of the slurry-like body S is fine, such as processing scraps by honing processing, super processing, lapping processing scraps, etc., the solid components are the mold 1 and the pressure rod 3 or the gate. 2 and is supplemented by the filters 4 and 5 without flowing out from the gaps d1 and d2. Therefore, solid-liquid separation is possible even for a slurry-like body that has been difficult to separate with a conventional grinding sludge solidification apparatus.
Further, since the cylindrical mold 1 and the pressure rod 3 are used, it is possible to perform solid-liquid separation at a high pressure by increasing the pressure. When the slurry-like body S is a honing sludge, the oil content is, for example, about 40 wt% in the sludge generation state, and is put into the mold 1 in this state, but the oil content is 10% or less by the above-described pressing. .

  This facilitates solidification of the slurry-like body S by squeezing, and the liquid components such as the honing liquid are discharged in a cleaned state, and the liquid components in a reusable state are recovered without subsequent filtration. it can.

The adhesive A or the curing agent is used, but the liquid squeezed by the squeezing is different from the case where the adhesive or the curing agent is mixed before the squeezing because the slurry A is injected after the squeezing in the mold 1. Adhesives and curing agents are not mixed with the components, and a beautiful liquid component can be recovered.
As described above, since the filters 4 and 5 are used and the adhesive A or the curing agent is injected after the curing by pressing, the solid component is very solid because the solid component is very fine and the particle shape is round. Even if it is a difficult slurry-like object, for example, processing scraps such as super steel and glass, it can be solidified and the processing fluid to be recovered is beautiful.
In addition, after the slurry-like body S in the mold 1 is squeezed, the adhesive A or the curing agent is injected while the compressed body is put in the mold 1, so that the squeezed body is incompletely solidified. It is not necessary to discharge from the mold 1 and is excellent in workability.

The slurry-like body S in the mold 1 is solidified into a columnar briquette-like solidified substance SB (FIG. 2) by pressing and subsequent injection of the adhesive A or the like. The solidified product SB is obtained by attaching the filters 4 and 5 on both sides to the solidified product main body SBa and injecting the adhesive A or the curing agent therein.
By solidifying into the solidified product SB as described above, handling such as transportation and storage becomes easy, and recycling becomes possible. When the solid component is a slurry S of steel material, the obtained solidified product SB is used as a steelmaking raw material and charged into a furnace. Handling in the process of such reuse is facilitated by solidification. In addition, since solid-liquid separation can be performed to such an extent that the oil content becomes 10% or less, for example, the processing liquid that is a liquid component can be recovered with high efficiency. Thereby, resources can be used economically and the load on the natural environment can be reduced.

  The above-mentioned filters 4 and 5 are extruded with the pressure rod 3 together with the solidified product SB remaining in the mold 1 or the unsolidified compressed body by pressing, and a new filter 4 or 5 is used for each pressing. The problem of filter clogging does not occur, and the maintenance work for filter replacement can be saved. Since the filters 4 and 5 are discharged together with the compressed body for each pressing process, it is only necessary to put them in the mold 1, and no complicated work such as mounting work is required. Easy to do.

The filters 4 and 5 are attached to the solidified product SB. However, by selecting the materials of the filters 4 and 5 as appropriate, there is no problem such as mixing of different components, and the filters 4 and 5 remain attached. The chemical substance SB can be reused as, for example, a steelmaking raw material. If the filters 4 and 5 are made of plant fiber, they will burn when placed in the furnace, so they do not affect the material of the steel material, and the gas and debris generated when burned may cause pollution. Absent. Since the filters 4 and 5 adhere to the solidified product SB, it is not necessary to discard the used filters 4 and 5 separately, which also improves workability.
The filters 4 and 5 need to be new for each squeezing, but it is possible to reuse the solid component of the slurry-like material that could not be used in the past, and the recovery rate of the liquid component can be improved. Considering that the recovered machining fluid does not need to be filtered, the consumption of the filter is not a problem from the environmental and cost viewpoints.
Since the adhesive A or the curing agent injected into the solidified product SB also burns when put in the furnace, the influence on the material of the recycled material such as steel is avoided.

  4 to 8 show specific configuration examples of the solid-liquid separator. The solid-liquid separation device includes a mold positioning device 11 that can move the mold 1 along a predetermined path and can be positioned at a plurality of index positions P1 to P4, and one index position by the mold positioning device 11. A filter loading device 12 provided at P2, a slurry-like material supply device 13 provided at another indexing position P1, a pressurizing device 14 provided at another indexing position P3, and another indexing device. An injection head lifting / lowering device 49 provided at the exit position P4 is provided.

  The mold positioning device 11 includes a guide rail 16 that guides the traverse unit 30 on which the mold 1 and the gate 2 are mounted along a straight path, and an advance / retreat apparatus 17. The traverse unit 30 is obtained by mounting the mold 1, the gate 2, and the chute 31 on the traverse base 15. The guide rail 16 is a bar-like member provided on the fixed base 41 in parallel two vertically, and a guided portion 18 (FIG. 8) provided on the traverse base 15 is slidably fitted. The advancing / retracting device 17 includes a feed screw mechanism 19 such as a ball screw provided in parallel with the guide rail 16 and a motor 20 such as an AC servo motor that rotates a screw shaft 19 a of the feed screw mechanism 19. The screw shaft 19 a of the feed screw mechanism 19 is rotatably installed on the fixed base 41, and the ball nut 19 b (FIG. 8) is fixed to the traverse base 15.

  In FIG. 4, among the index positions P1 to P4, the index position P2 is a filter loading position. The index position P1 is distributed to both sides in the traverse base advance / retreat direction, and the index position P1 for supplying the slurry-like body and An indexing position P3 for squeezing by the pressure device 14 is arranged. The index position P4 is an index position for injecting adhesive or the like.

  The filter loading device 12 lifts and lowers an elevating rod 22 having a suction pad 21 made of a vacuum chuck at the lower end by an elevating device 23 such as an air cylinder, and loads the lower filter 5 into the mold 1. The upper filter 4 is loaded into the mold 1. The lower filter 5 may be loaded by placing the upper surface of the mold 1 in a flat state and then pressing the filter 1 into the mold 1 with the pressure rod 3 later. The elevating device 23 is provided so as to be able to reciprocate between the index position P2 and a filter supply table (not shown) in the vicinity thereof, and adsorbs the prepared filter on the filter supply table. Loading into the mold 1 is performed.

  The slurry-like body supply device 13 includes a hopper that stores the slurry-like body S and supplies the slurry-like body S to the mold 1 in a fixed amount. The slurry-like body supply device 13 may be a pipe or the like.

  The pressurizing device 14 is a mechanism for moving the pressurizing rod 3 up and down, and an elevating body 25 provided so that the pressurizing rod 3 extends downward is installed on a support base 26 so as to be movable up and down, and the pressurizing rod 3 is moved up and down. The body 25 is moved up and down by a servo motor 28 and a rotation / straight-line conversion mechanism 27. The servo motor 28 is composed of an AC servo motor, and is transmitted to the rotation / linear advance conversion mechanism 27 via the speed reducer 29. The rotation / straight-ahead conversion mechanism 27 includes a feed screw mechanism such as a ball screw, and includes a nut 27b fixed to the elevating body 25 and a screw shaft 27a that is rotatably installed on the elevating body 25. The servo motor 28 is controlled by the pressurization control device 33.

  The injection head elevating device 49 is means for moving the injection head 45 up and down and inserting / removing it into the mold 1, and is constituted by a fluid pressure cylinder device such as an air cylinder, or a rotation / linear conversion mechanism such as a motor and a ball screw. Consists of.

  The traverse unit 30 will be described. The chute 31 for discharging the solidified material SB from the lower end opening of the mold 1 and the gate 2 are installed on a common index base 36, and the index base 36 is connected to the traverse table 15 via a guide member 37 (see FIG. 8). It is supported so that it can move in the traverse table movement direction. The guide member 37 is not shown in other figures of FIG. The guide member 37 can support the index base 36 so that the gate 2 can receive the applied pressure when the slurry-like body S in the mold 1 is pressurized. The index base 36 is moved with respect to the traverse base 15 so that the gate 2 and the chute 31 can be interchanged with each other so that the index base 36 can be aligned with the mold 1, and the position is maintained at the position where the gate 2 or chute 31 is aligned with the mold 1. Further, a moderation mechanism (not shown) such as a ball plunger is provided in the guide member 37 so that the position holding can be released by a forcing force.

Stoppers 38 and 39 for abutting the index base 36 on the traverse table 15 are provided on the fixed base 41 at both ends in the movement path of the traverse table 15. The stoppers 38 and 39 are for performing the following operations. That is, when the index base 36 hits the stopper 38 on the left side of the drawing due to the movement of the traverse base 15 by the mold positioning device 11, the index base 36 stops, but the traverse base 15 can continue to move. By this movement, the positions of the gate 2 and the chute 31 with respect to the mold 1 on the traverse table 15 are switched. Thereby, the gate 2 opens as shown in FIG. 7B, and the mold 1 and the chute 31 are aligned.
From this state, when the traverse base 15 is moved to the right in FIG. 4 and the index base 36 is pressed against the stopper 39 at the right end, the index base 36 moves relative to the traverse base 15 in the opposite direction to the above. And the chute 31 are switched to the original state, and the gate 2 closes the mold 1 again.

The operation of the solid-liquid separator having this configuration will be described. First, as shown in FIG. 5, the traverse unit 30 is positioned at the index position P <b> 2, and the lower filter 5 is loaded into the mold 1 by the filter loading device 12. The gate 2 is at a position where the lower end opening of the mold 1 is closed.
Thereafter, the traverse unit 30 is moved to the index position P1 (FIG. 6), and a predetermined amount of the slurry-like body S is put into the mold 1 from the slurry-like body supply device 13.
The traverse unit 30 is positioned again at the index position P2, and the upper filter 4 is loaded into the mold 1 by the filter loading device 12.

The traverse unit 30 in which the filters 4 and 5 are loaded and the slurry S is loaded is moved to the index position P3 (FIG. 4), and the pressure rod 3 is moved into the mold 1 by the pressure device 14. The slurry-like body S inside is squeezed.
After the pressing, the traverse unit 30 is moved to the index position P4, and the injection head 45 is inserted into the mold 1 and injected into the compressed body of the slurry-like body S in the mold 1.
By this compression and injection of the adhesive A or the like, the slurry-like body S is solidified into the solidified product SB as described above with reference to FIGS.

Thereafter, the traverse unit 30 is moved to the left side. By continuing the movement of the traverse unit 30 even after the index base 36 of the traverse unit 30 hits the stopper 38, the gate 2 is opened and the chute 31 is aligned with the mold 1 as described above with reference to FIG. Position.
In this state, the traverse unit 30 is returned to the indexing position P3 for squeezing, and the solidified material SB in the mold 1 is pushed downward by the pressurizing rod 3 of the pressurizing device 14 so that the solidified material SB is gold. It falls off the mold 1 and slides on the chute 31 and is discharged.
After this discharge, the traverse unit 30 is moved to the right end of the figure, the index base 36 is pressed against the stopper 39, the positions of the gate 2 and chute 31 are changed so that the gate 2 closes the mold 1, and then the next The traverse unit 30 is moved to the filter loading index position P2 for solid-liquid separation.

  As described above, the traverse unit 30 on which the mold 1 is mounted is provided, and the mold 1 is moved to move to the index positions P1 to P4. The apparatus which performs each process of loading of the upper and lower filters 4 and 5, loading of the slurry-like body S, squeezing of the slurry-like body S, injection of the adhesive A, etc., and discharge of the solidified product SB, while there is an injection step However, a simple configuration is sufficient. In addition, since the mold 1 is moved, the filter loading device 12 can perform a new filter from the supply base (not shown) of the filters 4 and 5 during the pressing operation and the loading of the slurry S. 4, 5 can be adsorbed and prepared, the filter loading, squeezing and discharging can be performed efficiently, and the productivity is excellent.

  In the above embodiment, the adhesive A or the curing agent is injected through the filter 4. However, the mold 1 is covered with the filters 4 and 5 in the compressed body by providing an injection port or the like. You may make it inject | pour the adhesive agent A or a hardening | curing agent from the surface which does not exist. Alternatively, the filter 4 may be broken with the nozzle head 45 or the like, and the adhesive A or the curing agent may be injected from the broken portion.

In the above embodiments, the filters 4 and 5 are used. However, the filters 4 and 5 are not necessarily used. For example, in the case of grinding sludge having a general particle size, even if the filters 4 and 5 are not used, the processing waste hardly flows out from the gaps d1 and d2 between the mold 1 and the pressure rod 3, etc. Is possible.
When the filters 4 and 5 are not used, the slurry-like body S is squeezed without loading the filters 4 and 5 in the apparatus of FIG. Thereafter, as shown in FIG. 9, the adhesive A or the curing agent is injected by the injection head 45 into the compressed body of the slurry-like body S in the mold 1. The injection head 45 in FIG. 9 is the same as the injection head 45 described in conjunction with FIG.
Even when the filters 4 and 5 are not used, the slurry-like body S in the mold 1 is squeezed, and the squeezing is performed by injecting the adhesive A or the curing agent while the compressed body is put in the mold 1. Can be solidified even if it is difficult to solidify by the slurry, and it can be avoided that the liquid component recovered from the slurry S is contaminated with a chemical for promoting solidification, and the solidification workability The effect that it is excellent in is obtained.

It is sectional drawing which shows the principal part of the solid-liquid separation method of the slurry-like body which concerns on 1st Embodiment of this invention, and its apparatus. (A), (B) is sectional drawing and a perspective view of the solidified material of a slurry-like body, respectively. It is sectional drawing which shows the relationship between the nozzle head which is an injection means of the adhesive liquid in the solid-liquid separator, and a metal mold | die. It is a fracture front view showing the whole solid-liquid separation device of the slurry-like object. It is explanatory drawing of the operation state of the solid-liquid separator. It is explanatory drawing of the other operation state of the same solid-liquid separator. (A), (B) is a fracture | rupture front view which shows the operation state at the time of pressing of the traverse unit in the same solid-liquid separator, and discharge | emission, respectively. (A), (B) is a fracture | rupture side view which shows the operation state at the time of pressing and discharge | emission of the traverse unit in the same solid-liquid separator, respectively. It is sectional drawing which shows the relationship between the nozzle head which is an injection | pouring means of the adhesive liquid in other embodiment of this invention, and a metal mold | die. It is sectional drawing of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Mold 2 ... Gate 3 ... Pressure rods 4, 5 ... Filter 11 ... Mold positioning device 12 ... Filter loading device 13 ... Slurry body supply device 14 ... Pressure device 15 ... Traverse base 31 ... Chute 45 ... Nozzle Head (injection means)
46 ... Reservoir 47 ... Nozzle hole A ... Adhesive S ... Slurry SB ... Solidified material

Claims (8)

A method for separating a slurry-like body into a solid component and a liquid component, wherein the inner diameter surface is formed into a cylindrical surface and a mold into which the slurry-like body is charged, and one end opening of the mold is closed in an openable / closable manner. Using a device comprising a gate and a pressure rod that slidably fits in the mold and presses the slurry-like body in the mold against the gate side,
The slurry-like body in the mold is squeezed with the pressure rod to form a squeezed body, and the compressed body is poured into the squeezed body while the compressed body is placed in the mold, and the squeezed body is solidified. The solid-liquid separation method of the slurry-like body to be converted.   In Claim 1, it fixes to the front end surface of the said pressure rod, and the inner surface of a gate the clearance gap between the front-end | tip outer periphery of these pressure rods and the internal diameter surface of a metal mold | die, and the clearance gap between the contact surfaces of a gate and a metal mold | die. A method for solid-liquid separation of a slurry-like body, in which a slurry-like body in the mold is squeezed by the pressure rod in a state where a fibrous filter for liquid separation is arranged.   The method for solid-liquid separation of a slurry-like body according to claim 2, wherein the filter is a paper-like filter.   An apparatus for separating a slurry-like body into a solid component and a liquid component, and a mold in which an inner diameter surface is formed into a cylindrical surface and the slurry-like body is charged, and one end opening of the mold are closed so as to be openable and closable. A gate, a pressure rod that is slidably fitted in the mold, and presses the slurry-like body in the mold against the gate side, and after pressing by the pressure rod, the pressure rod The solid liquid of the slurry-like body provided with the injection means which inject | pours an adhesive agent or a hardening | curing agent with respect to the pressing body of the slurry-like body squeezed with the said pressure rod in the said mold | die after escaping from a metal mold | die Separation device.   5. The mold, the gate, and the pressure rod according to claim 4, the gap between the tip outer periphery of the pressure rod and the inner diameter surface of the mold, the gate, With the fibrous filter for solid-liquid separation closing the gap between the contact surfaces with the mold, the slurry-like body in the mold is squeezed with the pressure rod, and this squeezing into the mold A solid-liquid separation device for a slurry-like body in which the remaining solid component is extruded with the pressure rod together with the filter.   6. The solid-liquid separator for a slurry-like body according to claim 5, wherein the filter is a paper-like filter.   A solidified product obtained by solidifying a slurry-like body into a columnar shape by pressing, and a slurry-like body into which an adhesive or a curing agent is injected in a compressed state. 8. The slurry-like solidified product according to claim 7, wherein a fibrous filter is attached to both end faces.

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