KR20170091743A - Sludge deliquoring/solidification apparatus - Google Patents

Abstract

A sludge desalination and solidifying device capable of reliably extracting solidified sludge from a processing vessel. The sludge desalination and solidifying device 10 includes a processing vessel 12 having a discharge port 12d at the lower end to which liquid containing sludge is introduced and a discharge port 12d for closing the discharge port 12d and passing the liquid introduced into the processing vessel 12 An opening and closing drive part 22 for opening and closing the discharge port 12d by moving the lid part 21 and a filter element 23 for depositing the sludge, Solidifying means 16 for solidifying and extruding means 15 for pushing sludge solidified in the treatment vessel 12 from the outlet 12d.

Description

[0001] SLUDGE DELIQUORING / SOLIDIFICATION APPARATUS [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sludge desalination and solidifying device for removing sludge such as processing residue from a liquid such as a coolant supplied to a machine tool to desalt and solidify the sludge.

In general, a machine tool such as a honing machine or a grinding machine processes a workpiece (a workpiece) disposed in a machining part while supplying a coolant such as a grinding liquid or a cutting fluid. The working debris of the workpiece generated during machining is recovered together with the coolant. The recovered coolant is filtered again with a filter device to remove the debris and is used again.

Patent Document 1 discloses an apparatus for solidifying sludge of a processed residue removed by a filter device. The desalination and solidifying device disclosed in Patent Document 1 is composed of a pressurizing container having an opening on the bottom surface and an opening and closing lid for closing the bottom surface of the pressurizing container. The opening and closing lid is provided with a filter member through which a coolant can be passed and the sludge can be deposited. In the pressurized vessel, sludge is introduced from the upper side together with a coolant, and the sludge is introduced into the pressurized vessel while the sludge is received by the filter member, thereby desorbing and solidifying the sludge. When the sludge solidified on the filter member is accumulated to some extent, the sludge solidified from the pressurized vessel is extracted by opening the opening / closing lid.

JP 2010-279860 A

Conventional desalting and solidifying apparatuses have a problem in that when compressed air is injected into a pressurizing container to compress and sludge while compressing and solidifying the sludge, the sludge is stiffly attached to the inner circumferential surface of the pressurized container and can not be extracted from the pressurized container have. If this happens, the device must be stopped and the sludge must be extracted by hand, which requires extra labor and time.

An object of the present invention is to provide a sludge desalination and solidifying device capable of reliably extracting solidified sludge from a processing vessel such as a pressurized vessel.

(1) A sludge desalination and solidifying apparatus according to the present invention comprises: a processing vessel including a discharge port at a lower end to which a liquid containing sludge is introduced; a filter member which deposits the sludge while passing the liquid introduced into the processing vessel And a sludge solidifying device for solidifying the sludge on the filter member and for solidifying the sludge on the filter member, and a sludge tank for solidifying the sludge solidified in the sludge tank, And an extruding means for pushing out.

According to the present invention, even if the sludge solidified in the processing vessel adheres to the inner surface of the processing vessel, the sludge can be extruded by the extrusion means and reliably discharged to the discharge port.

The term "sludge " as used herein refers to a state in which a processing residue such as grinding dust or cutting residue generated in a machine tool is mixed with a liquid and becomes dirt-like. "Solidified sludge (or solidified sludge)" refers to solidification by removing liquid components from the sludge. The term "liquid containing sludge" means that sludge (processing residue) is mixed in the liquid for the purpose of flowing sludge or the like.

(2) It is preferable that at least the lower side of the inner surface of the processing container is formed so as to become wider as it goes downward.

According to this configuration, when the solidified sludge moves downward at least a little, it is separated from the inner surface of the processing vessel, so that the sludge can be discharged more reliably from the processing vessel.

(3) The extruding means includes an extrusion member for exerting an extrusion action on the solidified sludge and an extrusion driver for moving the extrusion member vertically between a raised position located above the sludge and a lowered position pushing the sludge downward desirable.

According to this configuration, the extrusion member moves the sludge downward from the upper side of the sludge by the extrusion driving unit, and the sludge can be pushed downward and discharged to the discharge port of the processing vessel.

(4) The extrusion-driving unit may move the extrusion member downward in association with the operation of opening the lid unit.

According to this configuration, the sludge can be pushed out by the extrusion member in accordance with the opening timing of the lid part.

(5) The opening and closing guide part is configured to open the discharge port by closing the discharge port by lowering the lid part by lowering the lid part by lifting the lid part, and may also serve as the extrusion driving part for moving the extrusion member up and down.

The opening and closing eastern portion serves also as an extrusion driving portion, thereby making it possible to miniaturize the device and lower the cost of the equipment, and reliably interlock the operation of opening the lid portion and the operation of moving the extrusion member downward.

(6) The extrusion member may be formed of a porous plate having a plurality of through holes penetrating in the up-and-down direction, and may allow the liquid containing the sludge introduced into the processing vessel to pass through the through-holes while receiving and diffusing the liquid.

According to this configuration, the sludge can be uniformly deposited on the filter member of the lid portion. In addition, the number of parts can be reduced as compared with the case where the member for diffusing the liquid including the sludge is separately included from the extrusion member.

(7) It is preferable that the opening and closing drive part is disposed above the processing container.

If the opening and closing guide portion is disposed at the lower side of the processing container, means for preventing the opening and closing guide portion from being exposed to the liquid discharged from the processing container is required. However, this means is unnecessary by disposing the opening and closing guide portion above the processing container.

(8) The sludge desalination and solidifying device preferably has an introduction pipe for introducing the liquid containing the sludge from the upper part of the processing container, and the introduction pipe is preferably disposed within the plane range of the opening and closing drive part.

According to this configuration, it is possible to downsize the sludge dewatering and solidifying device.

(9) It is preferable that the opening and closing drive part is constituted by a cylindrical cylinder device having an axis in the vertical direction, and the introduction pipe is disposed in the central cylinder of the cylinder device.

According to this configuration, the introduction pipe can be appropriately disposed within the plane range of the opening and closing guide portion. Further, since the introduction pipe can be disposed along the vertical direction in the central cylinder of the cylinder apparatus, the flow resistance when introducing the liquid including the sludge into the processing vessel can be reduced, and the liquid can be smoothly introduced.

(10) It is preferable that the introduction pipe is detachably attached in the central cylinder of the cylinder apparatus.

With this configuration, it is possible to facilitate the repair and replacement of the introduction pipe.

(11) It is preferable that an opening / closing valve for opening / closing the introduction pipe is disposed in the central cylinder of the cylinder apparatus.

According to this configuration, it is possible to downsize the sludge dewatering and solidifying device.

(12) Preferably, the sludge desalination and solidifying device has a filter device for removing sludge from the liquid above the treatment vessel, and liquid containing sludge is introduced from the filter device into the treatment vessel.

With this configuration, it is possible to smoothly introduce the liquid containing the sludge downward into the processing vessel from the filter device.

According to the present invention, the solidification sludge in the processing vessel can be reliably extracted by the extrusion means.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a general view schematically showing a desludging and solidifying apparatus according to a first embodiment of the present invention; FIG.
2 is a general view schematically showing a desludging and solidifying apparatus according to a first embodiment of the present invention.
3 is a cross-sectional view taken along line AA of FIG.
4 is a cross-sectional view showing a section taken along the line BB in Fig.
5 is a cross-sectional view taken along line CC in FIG.
FIG. 6 is a cross-sectional view taken along the line DD of FIG. 3; FIG.
7 is a cross-sectional view showing the principal parts of the sludge desolvation and solidification apparatus provided with the processing vessel according to the modification.
8 is a front view (partial cross-sectional view) schematically showing a sludge desorption and solidification device according to a second embodiment of the present invention.
9 is a side view schematically showing a desludging and solidifying apparatus according to a second embodiment of the present invention.

≪ First Embodiment >

[Overall configuration]

1 and 2 are general views schematically showing a sludge desalination and solidifying device according to a first embodiment of the present invention.

The sludge dewatering and solidifying device 10 is used for purifying a coolant or the like used in a machine tool such as a Honing machine. The sludge dewatering and solidifying device 10 includes a filter device 11, a treatment vessel 12, an opening and closing means 13, a desalting and solidifying means 16 (see FIGS. 3 and 4), a discharging means 14, Means (15). Fig. 1 shows a state when the sludge S is solidified in the processing vessel 12, and Fig. 2 shows a state when the solidified sludge S is discharged from the processing vessel 12. Fig.

The filter device 11 is used to return the cleaned coolant to the tank (not shown) by receiving the coolant used in the machine tool and removing sludge such as machining residue from the coolant. The filter device 11 may be, for example, a magnetic filter device for adsorbing sludge to filter media by magnetic force or a cyclone filter device for centrifuging sludge by swirling flow. The upper end of the introduction pipe 17 is connected to the filter device 11 so that the sludge removed by the filter device 11 is discharged downward through the introduction pipe 17.

The treatment vessel 12 is disposed below the filter apparatus 11 and the sludge removed by the filter apparatus 11 is introduced together with the coolant. 3, 4 and 6, the processing vessel 12 is formed into a cylindrical shape having an upper end and a lower end opened.

The upper end of the processing container 12 is closed by an opening / closing part (cylinder device) 22 of the opening / closing means 13 described later. The lower end opening of the processing container 12 constitutes a discharge port 12d for discharging the coolant and is closed by the lid portion 21 of the opening and closing means 13. [ A lower end of the introduction pipe 17 is connected to an upper portion of the processing vessel 12, and a coolant and sludge discharged from the filter unit 11 are introduced. The inner peripheral surface 12a of the processing container 12 is formed in a tapered shape so as to have an inner diameter wider downward. The lower end of the processing vessel 12 is connected to a discharge chamber 53 through which the coolant after the sludge is removed is discharged.

The opening and closing means 13 includes a lid portion 21 for closing the lower end portion of the processing container 12 and an opening and closing portion 22 for opening and closing the discharge port 12d of the processing container 12 by moving the lid portion 21 up and down. . The lid portion 21 is disposed in the discharge chamber 53.

The lid portion 21 has an opening 21a formed at the center thereof. The opening 21a is provided with a filter member 23 through which a coolant is passed and sludge is deposited. The filter member 23 according to the present embodiment is constituted by a mesh member 23a composed of a metal mesh or the like and a support plate 23b supporting the mesh member 23a from below. The support plate 23b is formed with through holes passing vertically. The eyes of the reticulated body 23a are sized to pass the coolant and are formed to be equal to or slightly larger than the size of the processing residue in the sludge. Although the coolant introduced into the processing vessel 12 passes through the mesh body 23a and is discharged downward and the working debris in the sludge passes through the mesh body 23a in the initial stage, the machining debris gradually accumulated on the mesh body 23a So that it can be reliably trapped.

As shown in Figs. 3 and 5, the opening and closing guide portion 22 is constituted by a cylinder device such as an air cylinder or a hydraulic cylinder. Specifically, the cylinder device 22 is composed of a cylinder body 25 and a piston 26. [

The cylinder body 25 is composed of an outer cylinder 27, an inner cylinder 28, an upper plate 29, and a lower plate 30.

The outer cylinder 27 is formed in a cylindrical shape having an axial center in the vertical direction, and has an upper end and a lower end opened.

The inner cylinder 28 is also formed into a cylindrical shape having an axial center in the up-and-down direction, and the upper end and the lower end are opened. The inner cylinder 28 is smaller in outer diameter than the outer cylinder 27 and is disposed on the inner side of the outer cylinder 27 concentrically with the outer cylinder 27. [

The upper plate 29 is formed in a disk shape and connected to the upper ends of the outer tube 27 and the inner tube 28. The lower plate 30 is formed in a disc shape and connected to the lower ends of the outer cylinder 27 and the inner cylinder 28. Openings (29a, 30a) communicating with the inside of the inner cylinder (28) are formed in the center portions of the upper plate (29) and the lower plate (30).

The piston 26 is formed inside the cylinder body 25 and has a slightly smaller outer diameter than the outer cylinder 27 and a slightly larger inner diameter than the inner cylinder 28. [ The piston 26 divides the inside of the cylinder body 25 into an upper space and a lower space and slides in the vertical direction. A sealing member (not shown) is provided on the outer circumferential surface and the inner circumferential surface of the piston 26 to maintain the sealing performance between the inner circumferential surface of the outer cylinder 27 and the outer circumferential surface of the inner cylinder 28.

The upper plate 29 and the lower plate 30 are respectively provided with supply ports 31 and 32 to which operating air for sliding the piston 26 up and down is supplied. A compressed air supply source (50) is connected to each of the supply ports (31, 32) through a pipe (54). The pipe 54 is provided with a switching valve 55 so that supply of compressed air to the supply ports 31 and 32 is switched.

On the lower surface of the piston 26, the upper ends of two support rods (support members) 33 are attached. The support rod 33 is disposed along the vertical direction and slidably penetrates the lower plate 30. [ The lower end of the support rod 33 is connected to the lid portion 21.

With the above arrangement, when the piston 26 is moved up and down by the compressed air supplied from the supply ports 31 and 32 into the cylinder main body 25, the lid part 21 also moves up and down through the support rod 33 The discharge port 12d of the processing vessel 12 is opened and closed.

An introduction pipe 17 is disposed at the center of the cylinder body 25 in the form of a cylinder. Specifically, an upper fixing member 35 is detachably attached to the center opening 29a of the upper plate 29, and a lower fixing member 36 is detachably attached to the central opening 30a of the lower plate 30 have. The upper end of the introduction pipe 17 is fixed to the upper fixing member 35 and the lower end of the introduction pipe 17 is detachably fixed to the lower fixing member 36. The upper fixing member 35 and the lower fixing member 36 are coupled with the airtightness between the upper plate 29 and the lower plate 30, respectively.

The upper fixing member 35 and the lower fixing member 36 are connected by a connecting rod 37. Therefore, the upper fixing member 35, the lower fixing member 36, and the introduction pipe 17 are integrated to constitute one inlet pipe unit 40. [ Therefore, the whole of the introduction pipe unit 40 can be attached to and detached from the cylinder body 25 of the cylinder device 22.

An air chamber 41 is formed between the inner cylinder 28 of the cylinder main body 25 and the introduction pipe 17. An introduction port 42 for introducing compressed air into the air chamber 41 is formed in the upper plate 29. The introduction port 42 is connected to a compressed air supply source 51.

The introduction pipe 17 has plasticity and is compressed in the radial direction by the air introduced into the air chamber 41 as shown by a two-dotted line in Fig. 3, thereby closing the flow path of the coolant and the sludge. That is, the introduction pipe 17 itself functions as an opening / closing valve. The piping 56 connecting the compressed air supply source 51 and the introduction port 42 is provided with an on-off valve 57 to switch the supply of compressed air. The compressed air supply source 51 may also be used as the compressed air supply source 50 for the cylinder apparatus 22.

The desorption and solidification means 16 has a supply port 43 formed in the processing vessel 12 and a compressed air supply 52 connected to the supply port 43 via a pipe 58. The coolant and the sludge introduced from the filter device 11 into the processing vessel 12 through the introduction pipe 17 are once lodged on the filter member 23 and the coolant is gradually discharged downward through the filter member 23 . The desalination and solidification means 16 supplies compressed air from the compressed air supply source 52 into the processing vessel 12 to apply pressure to the coolant and sludge that are trapped in the processing vessel 12 to remove the coolant . As a result, the sludge S remaining on the filter member 23 is desorbed and solidified. The piping 58 is provided with an on-off valve 59 to switch the supply of compressed air. The compressed air supply source 52 can be used also as the compressed air supply source 50 or 51 for the cylinder apparatus 22 or the introduction pipe 17.

A height sensor 44 for measuring the height of the sludge S solidified and deposited on the filter member 23 is provided in the processing vessel 12. [ The height sensor 44 includes a detector 44a provided so as to extend downward from the upper portion of the processing vessel 12 and detects the height by contacting the detector 44a with the solidified sludge S . For example, the detector 44a may be an electrode, and the height may be detected by a change in voltage or current when the sludge is brought into contact with the detector 44a.

When the height of the sludge S detected by the height sensor 44 becomes equal to or larger than a predetermined value, the sludge S is discharged from the processing vessel 12. Specifically, the lid part 21 is moved downward by the cylinder device 22 to open the lower end opening of the processing container 12. [ The sludge S deposited on the filter member 23 descends together with the lid portion 21 and is extracted downward from the processing vessel 12.

1 and 2, the discharge means 14 includes a discharge drive 46 for moving the scraper member 45 and the scraper member 45 in the horizontal direction. The outlet port 46 can be constituted by a cylinder device such as an air cylinder or a hydraulic cylinder. The discharge means 14 horizontally pushes the sludge S on the filter member 23 of the lid portion 21 descending from the treatment vessel 12 to the side wall of the discharge chamber 53 And then discharged to the formed outlet 53a. The discharge port 53a is opened and closed by the closing plate 53b.

The extrusion means 15 pushes the sludge S so that the sludge S does not remain in the processing vessel 12 when the lid portion 21 is opened to extract the solidified sludge S on the filter member 23 from the processing vessel 12 It functions as an exporter.

The extrusion means 15 includes an extrusion member 47 for applying an extrusion action to the sludge S and an extrusion drive unit 48 for moving the extrusion member 47 up and down.

The extrusion member 47 is constituted by a thin plate member and arranged substantially horizontally. The outer diameter of the extrusion member 47 is formed to be slightly smaller than the inner diameter of the processing container 12 so that the interval t between the inner peripheral surface 12a of the processing container 12 and the outer peripheral edge of the extrusion member 47 Respectively.

The extrusion drive section 48 can also be used as the above-described opening and closing drive section 22. That is, the extrusion drive section 48 is constituted by a cylinder device including a cylinder body 25 and a piston 26. [ On the lower surface of the piston 26, the upper ends of two connecting rods 49 arranged along the vertical direction are connected. The connection rod 49 is connected to the extrusion member 47 in the processing container 12 through the lower surface 30 of the cylinder body 25. The extruding member 47 moves the piston 26 in the cylinder body 25 upward and downward to push the sludge S downward and the raised position located above the sludge S solidified on the filter member 23 The inside moves up and down between the lowering positions.

The sludge S solidified on the filter member 23 is firmly adhered to the inner peripheral surface of the processing vessel 12 and the sludge S is prevented from falling down even when the lid portion 21 is lowered The sludge can be reliably extracted from the processing container 12 by pushing down the sludge S by moving the extrusion member 47 downward even if it does not drop due to its own weight. Since the extrusion member 47 is provided over substantially the entire cross-sectional area of the processing vessel 12, only a part of the sludge S is extruded and the sludge is prevented from remaining on the inner peripheral surface of the processing vessel 12 .

The pushing-out member 48 can also serve as the opening / closing member 22, so that the pushing-out member 47 moves vertically in conjunction with opening / closing of the lid 21. Therefore, it is possible to lower the extrusion member 47 appropriately at the timing of opening the lid part 21. [ Furthermore, the push-out drive section 48 also serves as the opening and closing drive section 22, so that it is possible to reduce the size of the equipment and the cost reduction by reducing the number of parts.

The outer peripheral rim of the extrusion member 47 and the inner peripheral surface 12a of the processing container 12 are not in direct contact with each other and the interval t is formed between them so that the resistance when the extruding member 47 is moved up and down is small The wear and damage of the extrusion member 47 can be suppressed.

The gap between the extrusion member 47 and the processing vessel 12 may make it difficult to drop the sludge adhering to the inner circumferential surface 12a of the processing vessel 12, but the inner circumferential surface 12a of the processing vessel 12 The sludge is separated from the inner circumferential surface 12a by only slightly lowering the sludge. Therefore, even if the gap is formed, the discharge of the sludge from the processing vessel 12 can be promoted.

A large number of through-holes 47a are formed on the surface of the extrusion member 47. The coolant containing the sludge introduced into the treatment vessel 12 from the introduction pipe 17 collides with the extrusion member 47 and then falls on the filter member 23 through the through hole 47a or the gap t do.

The coolant and the sludge introduced into the treatment vessel 12 are horizontally diffused by colliding with the extrusion member 47 and fall uniformly on the filter member 23. Therefore, it is possible to prevent the compressed air supplied to the processing container 12 from being partly removed from the filter member 23 because the filter layer formed by the processing residue is uniformly formed on the filter member 23.

The cylinder device 22 constituting the opening and closing guide portion 22 and the extrusion drive portion 48 is disposed above the processing container 12. In the prior art (refer to Patent Document 1), since the cylinder device for opening and closing the lid portion is disposed below the process container, it was necessary to protect the air cylinder from being contaminated by the coolant discharged from the process container. However, .

The cylinder device 22 is formed in a cylindrical shape and an introduction pipe 17 for introducing a coolant and sludge from the filter device 11 into the process container 12 is disposed in the container. Therefore, the introduction pipe 17 can be disposed so as to be within the plane range and the height range of the cylinder apparatus 22, thereby contributing to the downsizing of the sludge desalination and solidification apparatus 10. Since the introduction pipe 17 also serves as an opening / closing valve, the opening / closing valve can be disposed within the plane range and the height range of the cylinder device 22, thereby further contributing to the sludge desalination and miniaturization of the solidification device 10.

Further, the introduction pipe 17 can be arranged along the vertical direction by arranging the introduction pipe 17 at the center of the cylinder device 22. [ Accordingly, the flow resistance of the coolant and the sludge flowing through the introduction pipe 17 can be reduced to smoothly introduce the coolant and the sludge from the filter device 11 into the process container 12, thereby preventing clogging of the sludge in the introduction pipe 17 .

Since the introduction pipe 17 (the inlet pipe unit 40) is detachable from the cylinder device 22, it is possible to easily perform the repair or replacement of the introduction pipe 17 even if it is disposed inside the cylinder device 22 have.

Fig. 7 is a cross-sectional view showing a modified example of the processing vessel 12. Fig.

In the present embodiment, only the lower side 12b (lower than the imaginary line L) is formed into a tapered shape and the upper side 12b (Above the imaginary line L) is formed along the vertical direction (vertical direction). Thus, the discharge of the solidified sludge S can be promoted if the lower side 12b of the treatment vessel 12 is formed into a tapered shape. It is preferable that the range formed in the tapered shape on the inner peripheral surface of the processing container 12 is higher than the upper limit of the height of the sludge S detected by the height sensor 44. [

8 and 9 are general views schematically showing a sludge desolvation and solidifying device according to a second embodiment of the present invention.

In the sludge desolvation and solidifying device 10 according to the present embodiment, a cylinder device constituting the opening / closing part 22 and the extrusion driving part 48 is disposed above the processing container 12 as in the first embodiment. An introduction chamber 60 for introducing coolant and sludge is provided between the processing vessel 12 and the cylinder devices 22 and 48 so that the introduction pipe 17 is connected to the side wall of the introduction chamber 60. Further, the filter device 11 (see Fig. 9) is not disposed above the cylinder devices 22 and 48 but is disposed at a laterally spaced position. The introduction pipe 17 is provided with an on-off valve 61 for switching the introduction of the coolant and the sludge.

The cylinder devices 22 and 48 include a piston rod 63 projecting upwardly from the cylinder body 25. A connecting member 64 disposed in the horizontal direction is attached to the upper end of the piston rod 63. The upper ends of two supporting rods 65 arranged along the vertical direction are connected to the connecting member 64. The lower ends of the support rods 65 are connected to a lid portion 21 which closes the lower end opening of the processing vessel 12. [

A second connecting member 66 is provided in the middle of the two supporting rods 65. The second connecting member 66 is connected to the upper end of the connecting rod 67 arranged along the vertical direction. The lower end of the connecting rod 67 is disposed in the processing vessel 12 and has an extrusion member 47 attached thereto. The extrusion member 47 constitutes the extrusion means 15 for pushing the sludge adhered in the processing vessel 12 from the lower end opening as in the first embodiment. The push-out drive section 48 of the pushing-out means 15 also serves as an opening and shutting drive section 22 (cylinder device) for opening and closing the lid section 21.

The inner peripheral surface 12a of the processing container 12 is formed in a tapered shape. Therefore, it is possible to easily drop the sludge S deposited on the filter member 23 from the inner peripheral surface when the lid part 21 is opened.

The upper end opening of the processing vessel 12 is covered by a diffuser plate 69. The diffusion plate 69 is provided with a plurality of through holes through which coolant and sludge can pass. The coolant and the sludge introduced into the introduction chamber 60 through the introduction pipe 17 are introduced into the processing vessel 12 while being diffused by the diffusion plate 69 to be supplied to the filter member 23 of the lid unit 21 As shown in FIG. The connection rod 67 penetrates the diffusion plate 69 and the extrusion member 47 is disposed below the diffusion plate 69.

The sludge S solidified by the extrusion member 47 can be pushed downward in the present embodiment as well, so that the sludge S can be reliably discharged from the processing vessel 12. [

The present invention is not limited to the above-described embodiments but can be appropriately changed within the scope of the invention described in the claims.

For example, in the above embodiment, the height sensor 44 includes a detector 44a made of a metal rod, but a height sensor 44 composed of an ultrasonic sensor or an optical sensor may be used. When an ultrasonic sensor or an optical sensor is used, the height can be detected even if it is not sludge composed mainly of metal working residue.

The height sensor 44 may be omitted and the height of the sludge deposited on the filter member 23 may be indirectly detected depending on the amount of the coolant and the amount of sludge introduced from the filter device 11 or the number of introductions.

The sludge desolvation and solidification apparatus 10 pressurizes the coolant and sludge in the processing vessel 12 by introducing compressed air to perform desalination and solidification, but desalination and solidification may be performed by a method other than pressurization.

In addition, the sludge desalination and solidification device 10 may be used not only for sludge of processing residue generated by a machine tool but also for desizing and solidifying sludge caused by other causes.

The sludge desalination and solidification apparatus 10 according to the present invention may be formed so that the inner peripheral surface of the processing vessel 12 becomes wider downward. In this case as well, the sludge can be reliably discharged from the processing container 12 by the extrusion means 15.

However, the configuration in which the lower side of the processing vessel 12 extends at least downward can be helpful for facilitating the discharge of the sludge S from the processing vessel 12 regardless of the presence of the extrusion means 15 It is.

This international application claims priority based on Japanese Patent Application JP 2015-029425 filed on February 18, 2015, the entire contents of which is incorporated herein by reference.

The foregoing description of certain embodiments of the invention has been presented for purposes of illustration. These embodiments are inclusive and are not intended to limit the invention in its precise form. It will be apparent to those skilled in the art that many modifications and variations are possible in light of the above teachings.

10: sludge desalination and solidification device
11: Filter device
12: Processing vessel
12a: inner circumferential surface (taper surface)
12b: an inner surface (taper surface)
15: Extrusion means
16: Desalination and solidification means
17: introduction pipe
21:
22:
23: Filter element
47: extrusion member
47a: Through hole
48:
S: Sludge

Claims (12)

A processing vessel having a discharge port at the bottom and into which liquid containing sludge is introduced;
A lid part including a filter member for passing the liquid introduced into the processing vessel and depositing the sludge, the lid part closing the discharge port;
An opening / closing part for opening / closing the discharge port by moving the lid part;
A desalting and solidifying means for desalinating and solidifying the sludge on the filter member; And
An extrusion means for pushing the sludge solidified in the treatment vessel from the discharge port,
, ≪ / RTI &
Sludge desalination and solidification device. The method according to claim 1,
And at least the lower side of the inner surface of the processing container is formed to be wider downward,
Sludge desalination and solidification device. 3. The method according to claim 1 or 2,
The extrusion means includes an extrusion member for exerting an extrusion action on the solidified sludge and an extrusion drive portion for moving the extrusion member upward and downward between a raised position located above the sludge and a lowered position pushing the sludge downward doing,
Sludge desalination and solidification device. The method of claim 3,
And the pushing-out driving unit moves the pushing-out member in a downward direction in cooperation with the operation of opening the lid unit,
Sludge desalination and solidification device. 5. The method of claim 4,
Wherein the opening and closing guide portion is configured to open the discharge port by closing the discharge port by lowering the lid portion by lowering the lid portion by raising the lid portion,
Sludge desalination and solidification device. 6. The method according to any one of claims 3 to 5,
Wherein the extrusion member is formed of a perforated plate having a plurality of through holes penetrating in the up and down direction to allow the liquid containing the sludge introduced into the processing vessel to pass through the through-
Sludge desalination and solidification device. 7. The method according to any one of claims 1 to 6,
Wherein the opening / closing guide portion is disposed above the processing container,
Sludge desalination and solidification device. 8. The method of claim 7,
Further comprising an introduction pipe for introducing a liquid including sludge from an upper portion of the processing vessel,
Wherein the introduction pipe is disposed within a plane range of the opening /
Sludge desalination and solidification device. 9. The method of claim 8,
Wherein the opening and closing drive part is constituted by using a cylindrical cylinder device including a vertical axis,
Wherein the introduction pipe is disposed in the center cylinder of the cylinder apparatus,
Sludge desalination and solidification device. 10. The method of claim 9,
Wherein the introduction pipe is detachably attached to a central cylinder of the cylinder apparatus,
Sludge desalination and solidification device. 11. The method according to claim 9 or 10,
An opening / closing valve for opening / closing the introduction pipe;
Sludge desalination and solidification device. The method according to any one of claims 1 to 11,
Further comprising a filter device for removing sludge from the liquid above the processing vessel,
Wherein a liquid containing sludge is introduced into the processing vessel from the filter device,
Sludge desalination and solidification device.

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