JP2010279860A - Method and apparatus for deliquoring and solidifying liquid-containing sludge - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technique for deliquoring and solidifying liquid-containing sludge, by which liquid components can be effectively separated and deliquored from sludge containing oil, water or the like by using compressed air and a filter body and further drained sludge can be solidified to hardness of easy handling. <P>SOLUTION: When grinding sludge GS is deoiled by using compressed air and is solidified to briquette B in a state of being held by the filter body 10, the filter body 10 is constituted of a net-shaped body having innumerable liquid-passing holes and the sieve opening dimension of the liquid-passing hole in the net-shaped body is set to size where grinding metal swarf in the grinding sludge GS can pass through. Thereby the grinding metal swarf in the grinding sludge GS are accumulated on the filter body 10 to form the filter layer WF of the filter body 10 at the initial stage of a deoiling process for deoiling the grinding sludge GS by using the compressed air. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a method and apparatus for removing and solidifying liquid-containing sludge containing liquids such as oil and water, and more specifically, for example, containing oily or water-soluble coolant generated in a grinding process of various metals. The present invention relates to a dewatering / solidification technique for liquid-containing sludge that deoils and dehydrates grinding sludge.

  For example, grinding sludge generated in a grinding line for various machine parts such as a honing machine and a grinding machine is disadvantageous in terms of cost for recycling, and is generally treated as industrial waste.

  By the way, this kind of grinding sludge contains a large amount of oily or water-soluble coolant, so its handling is difficult, and there is concern about adverse environmental effects if it is discarded as it is. There was a problem that the amount of taking out increased and it was uneconomical.

  For these problems, for example, as described in Patent Documents 1 and 2, etc., a number of techniques for deoiling and solidifying grinding sludge have been developed and proposed. A method has been adopted in which grinding sludge is deoiled and solidified by compressing the grinding sludge with a very large pressure using a cylinder as a driving force.

  On the other hand, as described in Patent Document 3, a dehydration technique for dehydrating water-containing materials such as sludge and sludge using compressed air has been developed and proposed.

JP 2003-290988 A JP 2002-137095 A JP-A-11-253997

  However, any of these conventional techniques has the following problems, and there has been a further demand for solutions to these problems.

  In other words, the former method of compressing and solidifying the grinding sludge by applying a very large pressure to the grinding sludge increases the installation area for installing the hydraulic source, which is the drive source, and withstands high pressure. In addition, there are various problems to be solved, such as an increase in the size of the apparatus, an increase in running cost for driving the hydraulic power source, and wear of the components of the drive unit due to grinding sludge.

  Further, in the latter method of dewatering using compressed air, a filter member, typically a filter cloth, that retains a substance to be filtered by filtering water-containing substances such as sludge and sludge is clogged. For this reason, it was necessary to clean or replace the filter member periodically or whenever it becomes clogged. Further, the cleaning or replacement of the filter member must be performed manually, and the necessity of such a manual process makes it difficult to automate a series of dewatering processes.

  The present invention has been made in view of such conventional problems, and the object of the present invention is to use compressed air and a filter body for liquid-containing sludge containing liquids such as oil and water. An object of the present invention is to provide a method for dewatering and solidifying liquid-containing sludge that effectively separates and drains liquid components, and solidifies the liquid-containing sludge thus drained to a hardness that is easy to handle.

  Another object of the present invention is that the liquid removal and solidification method can be effectively carried out, and the filter body is clogged and a series of liquid removal and solidification steps are performed. An object of the present invention is to provide a dewatering / solidifying device for liquid-containing sludge that can be automated.

  In order to achieve this object, the liquid-containing sludge dewatering / solidifying method of the present invention is a method in which liquid-containing sludge containing a liquid such as oil or water is drained by compressed air while being held by a filter body. A liquid removal and solidification method for solidifying, wherein the filter body is constituted by a mesh body having innumerable liquid passage holes, and the opening size of the liquid passage hole of the mesh body is set in the liquid-containing sludge. By setting the size so that the filtration target substance can pass, the filtered target substance in the liquid-containing sludge is removed from the filter body in the initial stage of the liquid removal step of draining the liquid-containing sludge with the compressed air. It is characterized in that it is deposited on top to form an upper layer filter portion of the filter body.

The following configuration is adopted as a preferred embodiment.
(1) The liquid-containing sludge draining / solidifying method includes the following steps (a) to (d).
(A) a filling step of filling the liquid-containing sludge in a pressure chamber formed by laying the filter body at the bottom; (b) introducing the compressed air into the pressure chamber filled with the liquid-containing sludge; (C) Dewatering step of ventilating compressed air through liquid sludge (c) By introducing additional compressed air into the pressurized chamber after the dewatering step, the dewatered sludge is compressed into briquettes. Solidifying step for solidifying (d) Discharging step for discharging briquette of the solidified sludge from the pressurizing chamber

(2) The opening size of the fluid passage hole of the mesh body that constitutes the filter body is such that the substance to be filtered and removed in the liquid-containing sludge can pass, and in the liquid removal step by the compressed air. In the initial stage, the material to be removed by filtration in the liquid-containing sludge is set as small as possible within a range where it can be deposited on the filter body.

(3) The liquid-containing sludge is a grinding sludge containing metal grinding metal waste as a filter removal target substance.

  The liquid-containing sludge dewatering / solidifying device of the present invention is a liquid removing / solidifying device for liquid-containing sludge containing liquid such as oil, water, etc., to be solidified by depressurization with compressed air. A sealable pressure chamber formed by laying a filter body, sludge supply means for supplying liquid-containing sludge into the pressure chamber, and compression for introducing and supplying compressed air from above the pressure chamber into the pressure chamber An air supply means, and the filter body is composed of a mesh body having innumerable fluid passage holes, and the opening size of the fluid passage hole of the mesh body is the filtration in the liquid-containing sludge. In the initial stage of the dewatering process, the liquid containing sludge is set to a size that allows the substance to be removed to pass through, and the compressed air introduced into the pressurized chamber by the compressed air supply means deliquids the liquid sludge. The filter target substance in the sludge is the above filter Deposited on, characterized in that it is configured to form an upper layer filter portion of the filter body.

The following configuration is adopted as a preferred embodiment.
(1) A briquette discharging means for discharging the sludge briquette solidified in the pressurizing chamber to the outside of the pressurizing chamber is provided at a lower position of the pressurizing chamber.

(2) Control means for controlling the compressed air supply means, the sludge supply means and the briquette discharge means in conjunction with each other, and the control means comprises the liquid-containing sludge dewatering / solid according to claim 1 or 2. The compressed air supply means, the sludge supply means, and the briquette discharge means are controlled so as to implement the conversion method.

(3) A pressure sensor for detecting the pressure in the pressure chamber and a height sensor for detecting the height of the briquette of the sludge solidified in the pressure chamber as sensor means for detecting the situation in the pressure chamber. And the control means ends when the pressure sensor detects a decrease in the pressure in the pressurizing chamber below a predetermined value, and terminates the liquid removal step, and the height sensor detects a high or higher height of the briquette. When detected, the compressed air supply means, sludge supply means and briquette discharge means are controlled so that the solidification process is started.

(4) The opening size of the fluid passage hole of the mesh body that constitutes the filter body is such that the substance to be removed by filtration in the liquid-containing sludge can pass, and in the liquid removal step by the compressed air. In an initial stage, the material to be removed by filtration in the liquid-containing sludge is set as small as possible within a range where it can be deposited on the filter body.

(5) The filter body has a laminated structure composed of a thin plate-like filter member constituting the mesh body and a holding plate that detachably mounts and holds the filter member.

(6) The filter member is a wire mesh.

(7) The holding plate has a strength capable of bearing a load caused by the compressed air in the liquid removal step using the compressed air, and secures an opening area through which the liquid filtered and dropped by the filter member can pass without resistance. A large number of small holes are formed.

(8) The pressurizing chamber is in the form of a cylindrical tubular body, and is formed on a tapered surface whose lower inner surface expands downward.

(9) The pressurizing chamber has an inlet for the compressed air supply means and sludge supply means at the top thereof, and the filter body is laid at the bottom thereof. In addition, a liquid recovery unit that recovers liquid such as oil and water drained from the liquid-containing sludge is provided so as to communicate with the outside of the pressurizing chamber.

(10) The bottom portion of the pressurizing chamber is configured to be openable and closable by an opening / closing lid, and the outer peripheral edge of the filter body is placed and supported on an upper peripheral edge portion of the opening / closing lid. By applying the opening / closing lid to the bottom of the pressurizing chamber, the outer peripheral edge of the filter body is supported and fixed in a sandwiched and sealed manner by the outer peripheral edge of the opening / closing lid and the pressurizing chamber bottom.

(11) The briquette discharging means includes at least lid opening / closing means for opening / closing the opening / closing lid, and the sludge solidified in the pressure chamber by the opening / closing operation of the opening / closing lid by the lid opening / closing means. The briquette is discharged outside the pressurizing chamber.

(12) The briquette discharging means includes a lifting / lowering means for lowering the sludge briquette solidified in the pressurizing chamber to a discharge position outside the pressurizing chamber, and the sludge briquette in the discharge position in the horizontal direction. And a horizontal discharge means for pressing and discharging. The elevating means comprises the lid opening / closing means for opening and closing the opening / closing lid.

(13) The elevating means is in the form of an elevating air cylinder device driven by an air pressure source, and an open / close lid is attached to the tip of the piston rod of the elevating air cylinder device so as to open and close the bottom of the pressurizing chamber. The sludge briquette, which has been solidified, is placed and supported on the open / close lid via the filter body.

(14) The horizontal discharge means is in the form of a horizontal air cylinder device driven by a pneumatic source, and the sludge briquette mounted and supported on the open / close lid is attached to the tip of the piston rod of the horizontal air cylinder device. A pressing briquette discharge pusher is attached and supported.

(15) A cleaning scraper is provided at each of upper and lower edges of the briquette discharge pusher, and the cleaning scraper is moved by the horizontal reciprocation of the briquette discharge pusher by the protrusion and retraction of the piston rod of the horizontal air cylinder device. Is configured to clean the lid joint portion at the bottom of the pressurizing chamber and the upper surface of the filter body.

(16) The lid opening / closing means is in the form of a lid opening / closing air cylinder device driven by an air pressure source, and is provided at the tip of the piston rod of the lid opening / closing air cylinder device so as to be swingable at the bottom of the pressure chamber. Then, an open / close lid that covers the bottom of the pressurizing chamber so as to be openable / closable is connected.

  According to the method for dewatering and solidifying liquid-containing sludge of the present invention, liquid-containing sludge containing liquid such as oil and water is supported by the filter body, and when it is liquid-removed and solidified by compressed air, The filter body is composed of a mesh body having innumerable fluid passage holes, and the opening size of the fluid passage hole of the mesh body is set to a size through which the filtration target substance in the liquid-containing sludge can pass. Thus, in the initial stage of the liquid removal step of removing the liquid-containing sludge with the compressed air, the filtration target substance in the liquid-containing sludge is deposited on the filter body, and the upper filter section of the filter body is Since it is formed, the liquid component of the liquid-containing sludge can be effectively separated and drained, and the liquid that has been drained can be solidified into a briquette having a hardness that is easy to handle.

  That is, while setting the opening size of the fluid passage hole in the mesh body constituting the filter body to a size that allows the substance to be filtered and removed in the liquid-containing sludge to pass, and in the initial stage of the liquid removal process with compressed air, Since the substance to be filtered and removed in the liquid-containing sludge is deposited on the filter body to form the upper filter part, the opening size of the liquid passage hole in the mesh body is filtered and removed in the liquid-containing sludge. In spite of the size through which the target substance can pass, the upper filter part effectively acts as a filter material layer, and the original filter function of the filter body is effectively exhibited. Removal of target substances does not cause clogging of the filter body, which basically eliminates the need for cleaning of the filter body, has a long service life, and allows maintenance frequency as much as possible. Can be reduced, can be labor saving, it is possible to suppress the running cost is also low.

  In addition, since the filter body is not required to be cleaned and the replacement work is not required over a long period of time, the above-described series of liquid-containing sludge liquid removal and solidification steps can be automated.

  In addition, according to the apparatus for dewatering and solidifying liquid-containing sludge of the present invention, the above-described method for dewatering and solidifying liquid-containing sludge of the present invention can be effectively implemented, and clogging of the filter body is eliminated. In addition, a series of liquid removal and solidification steps can be automated, and a small, inexpensive, and low running cost apparatus can be provided.

It is front sectional drawing which shows schematic structure of the deoiling and solidification apparatus of the grinding sludge which is Embodiment 1 of this invention. It is front sectional drawing which expands and shows the structure of the principal part in the apparatus. It is a top view which shows the main structures of the horizontal air cylinder apparatus of the apparatus. It is front sectional explanatory drawing for demonstrating the liquid removal and solidification process of the liquid containing sludge by the apparatus. It is front sectional drawing which shows schematic structure of the deoiling and solidification apparatus of the grinding sludge which is Embodiment 2 of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Throughout the drawings, the same reference numeral indicates the same component or element.

Embodiment 1
1 to 3 show a liquid-containing sludge devolatilization / solidification apparatus according to the present invention. Specifically, this apparatus devolatilizes liquid-containing sludge containing liquids such as oil and water with compressed air. In the embodiment shown in the drawing, a dewatering / solidifying device for solidifying is used to remove grinding sludge GS containing oily or water-soluble coolant C generated in the grinding process of various metals as liquid-containing sludge to be treated. It is an oil removal / solidification device for grinding sludge GS that is solidified into briquette B having a predetermined shape by oil and dehydration.

  As shown in FIG. 1, this deoiling / solidifying device includes a pressurizing chamber 1, a sludge supply unit (sludge supply unit) 2, a compressed air supply unit (compressed air supply unit) 3, and a briquette discharge unit (briquette discharge unit). ) 4 and a device control unit (control means) 5 are provided as main portions, and these components 1 to 5 are installed in the device housing 6.

  The pressurizing chamber 1 is a space for performing a series of steps of deoiling and dewatering the grinding sludge GS containing the coolant C to solidify it into a briquette B having a predetermined shape, and a filter body 10 is laid on the bottom thereof. It becomes the structure which can be sealed.

  In the illustrated embodiment, a cylindrical pressurized container 11 is provided in a hanging shape on the internal ceiling of the apparatus housing 6, and the cylindrical internal space is the pressurizing chamber 1. In other words, the pressurizing chamber 1 is in the form of a cylindrical tubular body, and the lower inner side surface 1a is formed in a tapered surface that expands downward, as will be described later. The briquette B of the grinding sludge GS that has been solidified (strictly in the shape of a truncated cone) is likely to fall due to its own weight.

  The pressurizing chamber 1 is provided with an introduction pipe 13 of a sludge supply section 2 and an introduction pipe 14 of a compressed air supply section 3, which will be described later, in the top portion, that is, the upper lid 12 of the pressurization container 11. ing.

  In addition, the filter body 10 is laid on the bottom of the pressurizing chamber 1, and a liquid recovery unit 20 is provided below the filter body 10, where the liquid is removed from the grinding sludge GS. The liquid C (oil-based or water-soluble coolant in the illustrated embodiment) C is configured to be recovered. The liquid recovery unit 20 can communicate with the outside of the pressurizing chamber 1 through a drainage path 20a.

  Specifically, as shown in FIG. 2, a structure in which an opening / closing lid 21 is detachably joined to the bottom of the pressurized container 11 and the bottom of the pressurizing chamber 1 is covered by the opening / closing lid 21. It is said that.

  As shown in the figure, the open / close lid 21 has a circular outline corresponding to the main body portion of the pressurized container 11 and is in the form of a cylindrical container having an open top. An annular step 22 is formed at the outer peripheral edge of the upper end of the opening / closing lid 21, and the outer peripheral edge 10 a of the filter body 10 is placed and supported on the annular step 22, and the space below it is the liquid recovery portion. Part 20.

  Further, as shown in FIG. 1, a drainage passage 20a of the liquid recovery unit 20 is provided in the inside and outside of the side wall portion of the opening / closing lid 21, and the drainage passage 20a is formed by a drainage pipe (not shown). It communicates with a liquid recovery tank (not shown) outside the apparatus housing 6.

  The filter body 10 is covered with the opening / closing lid 21 on the bottom of the pressurizing chamber 1, and the outer peripheral edge 10 a is formed by the opening / closing lid 21 and the pressurized container 11, that is, the outer peripheral edge 1 b of the bottom of the pressurizing chamber 1. The structure is supported and fixed in a sandwiched manner and in a sealed manner. In relation to this, an O-ring 23 is fitted on the lower end surface 11 a of the pressurized container 11 as a seal member.

  The filter body 10 has a disk shape having an outer diameter corresponding to the annular step portion 22 of the opening / closing lid 21 and has a double laminated structure including a filter member 25 and a holding plate 26.

  The filter member 25 is a thin plate that constitutes a net-like body that performs a filtering function as the filter body 10, and the material thereof is appropriately selected according to the type of liquid-containing sludge to be treated, such as plastic or metal. The In addition, the number of openings (mesh size) of the infinite number of liquid passage holes formed in the filter member 25 can pass through the grinding metal scrap which is the material to be removed by filtration in the grinding sludge GS to be processed. The size is set to be as small as possible within a range in which the grinding metal waste in the grinding sludge GS can be deposited on the filter body 10 in the initial stage of the liquid removal process using compressed air, which will be described later. . Note that it has been experimentally found that the filter layer WF of ground metal scrap deposited on the filter body 10 can serve as a filter if it can be covered with a thin film, that is, so-called lightly.

  That is, in this type of conventional general filter member, the filtration particle size of the grinding metal scrap is approximately equal to the opening size of the fluid passage hole of the filter member, in other words, the opening size of the fluid passage hole is The size of the grinding metal waste in the grinding sludge GS to be treated is set to be approximately equal to or smaller than the size of the grinding metal waste GS. It is set so as to have an opening size.

  As the filter member 25 in the illustrated embodiment, a metal mesh body, specifically a metal mesh made of a metal wire material, is used corresponding to the grinding sludge GS to be processed, and the opening of the liquid passage hole is used. The dimension is set slightly larger than the size of the grinding metal scrap in the grinding sludge GS to be processed. Note that the maximum diameter of the grinding metal scrap varies depending on many parameters such as the material of the work material, the grinding wheel count, cutting allowance, cutting speed, etc. It will be decided according to various conditions at the specific implementation site.

  In the illustrated embodiment, the maximum diameter of the grinding metal scrap in the grinding sludge GS is about 30 μm, and the opening size of the liquid passage hole is set to 40 μm to 45 μm slightly larger than the maximum diameter. Preferably, it is specifically set to 43 μm. The thickness of the illustrated filter member 25 is set to about 50 μm.

  Further, according to the filter member 25 under the above design conditions, the ground metal scrap accumulates on the filter body 10, that is, the filter member 25 by about 1 to 2 mm in the initial stage of the dewatering process using compressed air, which will be described later. It has been experimentally found that the layer WF is formed and exhibits an effective filter function.

  The holding plate 26 functions as a reinforcing plate for placing and holding the filter member 25 in a separable manner. Specifically, the holding plate 26 has a strength capable of bearing a load caused by compressed air in a liquid removal process using compressed air. A large number of small holes 26a, 26a,... Are provided in order to ensure a sufficient opening area for allowing the liquid C filtered and dropped by the filter member 25 to pass through without resistance.

  The material of the holding plate 26 is appropriately selected according to the type of liquid-containing sludge to be treated, such as plastic and metal, as with the filter member 25.

  The holding plate 26 of the illustrated embodiment is formed of a metal plate material, the thickness thereof is set to 7 mm, and a large number of small holes 26a, 26a,... The oily or water-soluble coolant C filtered and dropped by the filter member 25 passes downward through these small holes 26a, 26a,... And is recovered by the liquid recovery unit 20.

  The sludge supply unit 3 supplies the grinding sludge GS into the pressurizing chamber 1. Specifically, as described above, the introduction pipe 13 is provided through the upper lid 12 of the pressurizing chamber 1 so as to penetrate inside and outside. Thus, the introduction port 13 a faces the inside of the pressurizing chamber 1, whereby the grinding sludge GS to be processed is supplied into the pressurizing chamber 1 from its top.

  The introduction pipe 13 of the sludge supply unit 2 communicates with a sludge supply source (not shown) through an on-off valve 15 provided at an intermediate position. The on-off valve 15 is specifically composed of an electromagnetic valve, and is electrically connected to the apparatus control unit 5 to control introduction of the grinding sludge GS into the pressurizing chamber 1.

  The compressed air supply unit 3 introduces and supplies compressed air from above the pressurizing chamber 1 into the pressurizing chamber 1. As described above, the introduction pipe 14 is connected to the upper lid 12 of the pressurizing vessel 11. It is provided so as to penetrate inside and outside, and its introduction port 14a faces the pressurizing chamber 1, whereby compressed air as a pressurizing medium is supplied into the pressurizing chamber 1 from its top. Has been.

  The introduction pipe 14 of the compressed air supply unit 3 is communicated with a compressed air source (not shown) through an on-off valve 16 provided at an intermediate position. The on-off valve 16 is specifically composed of an electromagnetic valve, and is electrically connected to the device control unit 5 to control introduction of compressed air into the pressurizing chamber 1.

  In addition, a pressure gauge 17 as a pressure sensor is provided in the introduction pipe 14 of the compressed air supply unit 3, and a contact sensor 18 as a height sensor is provided in the upper lid 12. The sensors 17 and 18 function as sensor means for detecting the situation in the pressurizing chamber 1, the pressure gauge 17 detects the air pressure in the pressurizing chamber 1, and the contact sensor 18 is in the pressurizing chamber 1. The height of the briquette B of the solidified material, that is, the sludge GS, which is solidified and deposited, is detected and electrically connected to the device controller 5.

  As will be described later, the detection results of the pressure gauge 17 and the contact sensor 18 act as a control factor of the apparatus control unit 5 that determines when the liquid removal process ends and when the solidification process starts.

  The briquette discharge unit 4 of the illustrated embodiment is configured so that the briquette B of the sludge GS solidified in the pressurizing chamber 1 is moved to the outside of the pressurizing chamber 1 and further to the outside of the device housing 6 via the discharge chute 37 (machine). And is provided with an elevating part (elevating means) 31 and a horizontal discharging part (horizontal discharging means) 32.

  The elevating unit 31 lowers the briquette B of the sludge GS solidified in the pressurizing chamber 1 to a discharge position P outside the pressurizing chamber 1, and specifically, an elevating air cylinder driven by a pneumatic source. It is in the form of a device.

  The elevating air cylinder device 31 has a cylinder body 31 a mounted on the bottom of the device housing 6 in an upright manner, and a piston rod 31 b disposed coaxially with the cylindrical pressurizing chamber 1. At the tip of the piston rod 31b, an open / close lid 21 for mounting and supporting the filter body 10 is horizontally attached and supported. That is, the elevating air cylinder device 31 also has a function as lid opening / closing means for opening and closing the opening / closing lid 21.

  Although not specifically shown, the air pump and the direction switching valve of the air supply circuit, which is the operating air pressure source of the lift air cylinder device 31, are electrically connected to the device control unit 5 to drive the lift air cylinder device 31. (Projection and retraction operation of the piston rod 31b) is controlled.

  When the piston rod 31b protrudes upward by driving the elevating air cylinder device 31, the opening / closing lid 21 is raised in a horizontal state and joined to the bottom of the pressurization vessel 11, thereby the pressurization chamber. The bottom of the filter body 10 is tightly closed and covered, and the outer peripheral edge 10a of the filter body 10 is supported and fixed in a sandwiched and sealed manner by the open / close lid 21 and the outer peripheral edge 1b of the bottom of the pressurizing chamber 1. (Position shown in FIG. 1).

  On the other hand, when the retraction operation is performed below the piston rod 31b, the opening / closing lid 21 is lowered in a horizontal state and separated from the bottom of the pressurized container 11, thereby opening the bottom of the pressurizing chamber 1 and The filter body 10 is released from the hermetically sealed state, and its upper surface is lowered to the discharge position P below the pressurizing chamber 1. In other words, the solid sludge GS that is solidified and placed on the filter body 10 is lowered to the discharge position P by the opening operation of the opening / closing lid 21 by the piston rod 31b, and the outside of the pressurizing chamber 1 is below (Position (4) in FIG. 4).

  The horizontal discharge unit 32 is configured to press the briquette B of the sludge GS at the discharge position P discharged from the pressurizing chamber 1 in the horizontal direction and discharge it to the outside of the apparatus housing 6. It is set as the form of the horizontal air cylinder apparatus driven by this.

  The horizontal air cylinder device 32 has a cylinder main body 32a horizontally installed on the side wall portion of the device housing 6, and a piston rod 32b arranged at a height position corresponding to the discharge position P. At the tip of the piston rod 32b, a briquette discharge pusher 35 that is placed and supported on the opening / closing lid 21 and presses the briquette B at the discharge position P is attached and supported.

  As shown in the plan view of FIG. 3, the briquette discharge pusher 35 is a plate-like one formed by bending into a shape so as to hold the side cylindrical surface of the briquette B solidified into a cylindrical shape. The B is configured to linearly press and move in the advancing / retreating direction of the piston rod 32b without escaping B in the lateral direction.

  In this connection, a discharge port 36 is opened in the side wall portion of the device housing 6 facing the device portion of the horizontal air cylinder device 32, and the discharge chute 37 is formed at the lower edge of the discharge port 36. It is provided on the downward slope on the outside. As a result, the briquette B pushed and moved by the horizontal air cylinder device 32 is discharged out of the machine through the discharge port 36 by the discharge chute 37, and dropped and recovered by a sludge recovery portion (not shown in FIG. 4). 6)).

  Further, cleaning scrapers 38 are provided at the upper and lower edges of the briquette discharge pusher 35, respectively, and when the piston rod 32b of the horizontal air cylinder device 32 performs a series of push-out operations (projection and retraction operations). The cleaning scraper is configured to clean the lid-joining portion at the bottom of the pressurizing chamber 1 and the upper surface of the filter body 10, that is, the joining surface of the pressurizing container 11 and the opening / closing lid 21.

  Although not specifically shown, the air pump and the direction switching valve of the air supply circuit, which is the operating air pressure source of the horizontal air cylinder device 32, are electrically connected to the device control unit 5 to drive the horizontal air cylinder device 32. (Projection and retraction operation of the piston rod 32b) is controlled.

  When the piston rod 32b is protruded in the horizontal direction by driving the horizontal air cylinder device 32, the briquette discharge pusher 35 presses the briquette B in the horizontal direction as it is, and the briquette B moves on the opening / closing lid 21. The slide is moved and discharged onto the discharge chute 37. The briquette B discharged onto the discharge chute 37 slides down on the discharge chute 37 due to its own weight, and is dropped and collected by a sludge collecting unit (not shown).

  On the other hand, the piston rod 32b of the horizontal air cylinder device 32 that extrudes and discharges the briquette B moves back to the standby position in the horizontal direction (the position (1) in FIGS. 1 and 4). As a result of a series of protrusions and withdrawals of the piston rod 32b, the scrapers 38 and 38 for cleaning the briquette discharge pusher 35 reciprocate horizontally to clean the joint surface between the pressurized container 11 and the open / close lid 21 as described above. The lid sealing effect of this part is recovered or maintained.

  The device control unit (control means) 5 automatically controls the operation of each drive unit of the sludge supply unit 2, the compressed air supply unit 3 and the briquette discharge unit 4 described above. Specifically, The microcomputer is composed of a CPU, a ROM, a RAM, an I / O port, and the like.

  The apparatus control unit 5 is configured to execute a sludge supply process of the sludge supply unit 2, a dehydration / solidification process using compressed air of the compressed air supply unit 3, and a briquette discharge process of the briquette discharge unit 4 in conjunction with each other. A program and the like are incorporated, and various information necessary for driving each drive unit, for example, opening / closing timing and opening time of the opening / closing valve 15 in the sludge supply unit 2, opening / closing timing of the opening / closing valve 16 in the compressed air supply unit 3, and The valve opening time or the operation timing of the lifting / lowering air cylinder device 31 and the operation timing of the horizontal air cylinder device 32 in the briquette discharge unit 4 are selectively input and set as data or a keyboard or the like in advance.

  In addition, as described above, the device control unit 5 includes a pressure gauge 17 and a contact sensor 18 that are sensor means for detecting the situation in the pressurizing chamber 1, and each of the drive units 15, 16, 31, 32, and the like. Electrically connected, the device control unit 5 controls each of the drive units 15, 16, 31, 32, etc. according to these various measured values and data.

  Thus, the grinding sludge GS deoiling / solidifying device configured as described above is activated when the power is turned on, and each drive unit is automatically controlled by the device control unit 5 in association with each other. The oil / solidification step is executed (see (1) to (6) in FIG. 4).

A. Sludge introduction and filling process:
Grinding sludge GS is introduced and filled into the pressurizing chamber 1 in which the filter body 10 is laid at the bottom (see (1) in FIG. 4).

  Specifically, the opening / closing lid 21 is pressed against and joined to the bottom of the pressurized container 11 by the upward protrusion of the piston rod 31b of the elevating air cylinder device 31, and the pressurizing chamber 1 is tightly closed. While being in a sealed state, the on-off valve 15 of the sludge supply unit 2 is opened while the on-off valve 16 of the compressed air supply unit 3 is opened while the introduction pipe 14 is opened to the atmosphere (not shown). Thereby, the grinding sludge GS is introduced into the pressurizing chamber 1 from the sludge supply source of the sludge supply unit 2.

  When a predetermined amount of grinding sludge GS is introduced into the pressurizing chamber 1 and filled, the on-off valve 15 of the sludge supply unit 2 is closed, and the supply of the grinding sludge GS into the pressurizing chamber 1 is stopped. The

  At this time, the mesh opening size of the filter body 10 laid on the bottom of the pressurizing chamber 1 is large enough to allow grinding metal scraps, which are substances to be filtered and contained in the grinding sludge GS, to pass through (grinding). Therefore, immediately after the introduction of the grinding sludge GS, there is ground metal scrap that passes through the coolant C and is not captured by the filter body 10. However, since the contamination concentration of the grinding metal scrap with respect to the coolant C is high, as shown in FIG. 2, the grinding metal scrap immediately starts to deposit on the filter body 10, and the filter layer WF is slightly formed. The metal waste filter layer WF becomes an effective filter material, and the grinding metal waste contained in the grinding sludge GS is surely captured.

B. Deoiling (liquid removal) process:
By introducing compressed air at a predetermined pressure (about 0.4 MPa in the illustrated embodiment) into the pressurizing chamber 1 filled with the grinding sludge GS, the compressed air is vented into the grinding sludge GS to remove oil. (See (2) in FIG. 4).

  Specifically, after the introduction and filling of the grinding sludge GS into the pressurizing chamber 1 is completed, the on-off valve 15 of the sludge supply unit 2 is closed, and then the on-off valve 16 of the compressed air supply unit 3 is opened, Compressed air is introduced from the inlet 14a of the introduction pipe 14, and the grinding sludge GS is pressurized by this compressed air.

  The grinding metal waste in the grinding sludge GS is captured by the filter body 10 and the filter layer WF of the grinding metal waste deposited on the filter body 10, and only the coolant C passes through the intergranular gap of the grinding metal waste of the filter layer WF. Then, after passing through the filter body 10, it is dropped and recovered by the liquid recovery part 20 of the opening / closing lid 21, and further discharged outside the apparatus through the drainage path 20 a.

  Since the coolant C gradually decreases with time, the liquid level of the grinding sludge GS in the pressurizing chamber 1 gradually decreases, and finally, the grinding sludge accumulated on the filter body 10. The upper surface of the GS is exposed. This moment can be detected by the pressure gauge 17 because the pressure in the pressurizing chamber 1 decreases. Here, the deoiling process is completed, and the solidification process is continuously performed.

C. Solidification process:
By additionally introducing compressed air into the pressurizing chamber 1 after the liquid removal step, the liquid sludge GS that has been liquid discharged is compressed and solidified ((3) in FIG. 4).

(1) Specifically, after the deoiling process is completed, the compressed air introduced into the pressurizing chamber 1 directly acts on the grinding sludge GS itself that accumulates on the filter body 10, and grinding metal scraps. The coolant C contained between the particles is replaced with compressed air, and the deoiling is further promoted, and the accumulated sludge GS is accumulated by the replacement of the deoiled with the compressed air and the pressing force with the compressed air. Is solidified into briquette B. Further, compressed air is introduced for a predetermined time to form a briquette B having a predetermined hardness (predetermined oil content), and the oil removal and solidification processing of the grinding sludge GS is completed.

(2) Here, when the upper surface of the grinding sludge GS solidified in the briquette B is lower than the contact sensor 18 for detecting the solidified material height and does not contact the contact sensor 18, the above-described A to The process of C is repeated. As this processing step is repeated, the height of the grinding sludge GS deposited on the filter body 10 increases, and finally, the upper surface of the grinding sludge GS comes into contact with the contact sensor 18. Then, the on-off valve 16 of the compressed air supply unit 3 is closed, the introduction of compressed air into the pressurizing chamber 1 is stopped, the oil removal and solidification processing of the grinding sludge GS is completed, and the briquette discharge in the next step The process is started.

D. Discharge process:
The briquette B of the sludge GS deposited and solidified on the filter body 10 is discharged out of the apparatus from the pressurizing chamber 1 by the following steps ((4), (5), (6 in FIG. 4). )reference).

(1) Opening / closing lid lowering process:
By driving the elevating air cylinder device 31 for lowering the opening / closing lid, the piston rod 31b is retracted downward, and the opening / closing lid 21 is lowered. At this time, since the lower inner surface 1a of the pressurizing chamber 1 is a tapered surface that expands downward, the briquette B of the solidified grinding sludge GS is removed from the inner surface of the pressurizing chamber 1 by its own weight. As shown in FIG. 4 (4), it easily disengages and descends to the discharge position P together with the lowering lid 21 being lowered. If the briquette 17 is adsorbed to the inner surface of the pressurizing chamber 1 and does not fall, a little compressed air is introduced into the pressurizing chamber 1 from the inlet 13a of the inlet pipe 14 of the compressed air supply unit 3. Can be easily detached and dropped.

(2) Briquette removal and joint cleaning process:
Next, as shown in FIGS. 3 and 4 (5) and (6), the piston rod 32b protrudes in the horizontal direction by the driving of the horizontal air cylinder device 32 for taking out the briquettes, and is attached to the tip thereof. The briquette discharge pusher 35 pushes the briquette B on the open / close lid 21 in the horizontal direction as it is, and the briquette B is slid on the open / close lid 21 and discharged onto the discharge chute 37. It is dropped and collected in the sludge collection part. Thereafter, the piston rod 32b of the horizontal air cylinder device 32 moves back to the standby position (position (1) in FIGS. 1 and 4) at the rear in the horizontal direction.

  On the other hand, as described above, cleaning scrapers 38 are respectively attached to the upper and lower edges of the briquette discharge pusher 35, and the piston rod 32b of the horizontal air cylinder device 32 pushes out a series of briquette B push-out operations (projection and retraction). ), The cleaning scrapers 38, 38 of the briquette discharge pusher 35 are moved back and forth horizontally to clean the joint surface between the pressurized container 11 and the open / close lid 21 as described above. The lid sealing effect on the joint surface is restored or maintained.

(3) Emission completion:
When the briquette B discharging process is completed, the piston rod 31b is projected upward by driving the elevating air cylinder device 31, and the open / close lid 21 is raised and returned to be joined in close contact with the bottom of the pressurized container 11. In the sealed state where the pressurizing chamber 1 is tightly closed, the following deoiling / solidification process steps A to D are started.

  As described above, according to the dewatering / solidification technique of the grinding sludge GS of the present embodiment, the oil is deoiled by the compressed air while the grinding sludge GS containing a liquid such as oil or water is held by the filter body 10. Then, when the briquette B is solidified, the filter body 10 is constituted by a mesh body having innumerable fluid passage holes, and the opening size of the fluid passage holes of the mesh body is filtered and removed in the grinding sludge GS. By setting the size so that the grinding metal scrap that is the target substance can pass, the grinding metal scrap in the grinding sludge GS is in the initial stage of the oil removal step of deoiling the grinding sludge GS with the compressed air. Since it is deposited on the filter body 10 to form the upper filter portion (filter layer) WF of the filter body 10, the coolant C that is the oil content of the grinding sludge GS is effectively removed. While deoiling apart, it can be solidified to briquettes B of handling ease hardness of deoiled grinding sludge GS.

  That is, the opening size of the liquid passage hole in the wire mesh constituting the filter body 10 is set to a size that allows the substance to be removed by filtration (grind metal scrap) in the grinding sludge GS to pass through, and the liquid removal step using compressed air. In the initial stage, the material to be filtered and removed in the grinding sludge GS is deposited on the filter body 10 to form the filter layer WF, so that the opening size of the liquid passage hole in the wire mesh is the grinding sludge. In spite of the size through which the ground metal scraps in GS can pass, the filter layer WF acts effectively as a filter material layer, and the filter function of the filter body 10 is effectively exhibited. The removal of the grinding metal scrap after the completion of the process does not cause clogging of the filter body 10, so that the cleaning of the filter body 10 is basically unnecessary and the life is also shortened. Ku, it is possible to reduce the maintenance frequency as much as possible, can be labor saving, it is possible to suppress the running cost is also low.

  In addition, since the filter body 10 does not need to be cleaned and the replacement work becomes unnecessary for a long time, the above-described series of grinding sludge GS liquid removal and solidification steps can be automated.

  Further, according to the dewatering / solidification device for the grinding sludge GS of the present embodiment, the clogging of the filter body 10 can be eliminated, and a series of dewatering / solidification processes can be automated, which is small and inexpensive. In addition, an apparatus having a low running cost can be provided.

Embodiment 2
This embodiment is shown in FIG. 5, and the configuration of the briquette discharge unit 4 in the first embodiment is modified.

  That is, in the present embodiment, the briquette discharging unit 4 includes a lid opening / closing unit (lid opening / closing means) 41 that opens and closes the opening / closing lid 21 in accordance with the modification of the opening / closing structure of the opening / closing lid 21. .

  The opening / closing lid 21 of the present embodiment is provided at the bottom of the pressurizing chamber 1 so as to be swingable by a support shaft 42 and is configured to cover the bottom of the pressurizing chamber 1 so as to be openable / closable.

  The lid opening / closing section 41 opens and closes the opening / closing lid 21 and discharges the briquette B of the grinding sludge GS solidified in the pressurizing chamber 1 to the outside of the pressurizing chamber 1, specifically, The lid opening / closing air cylinder device is driven by an air pressure source.

  The lid opening / closing air cylinder device 41 is mounted on the bottom of the device housing 6 such that the cylinder body 41a is swingably supported by a support shaft 43, and the piston rod 41b has a tip at the center of the bottom of the opening / closing lid 21. Is pivotally connected to the support shaft 44.

  Although not specifically shown, the air pump and the direction switching valve of the air supply circuit, which is the operating air pressure source of the lid opening / closing air cylinder device 41, are electrically connected to the device control unit 5, and the lid opening / closing air cylinder device 41. Is controlled (piston rod 41b protruding and retracting operation).

  Thus, when the piston rod 41b protrudes upward by driving the lid opening / closing air cylinder device 41, the opening / closing lid 21 swings around the support shaft 42 and is joined to the bottom of the pressurized container 11. As a result, the bottom of the pressurizing chamber 1 is tightly closed and covered, and the outer peripheral edge 10 a of the filter body 10 is sandwiched between the open / close lid 21 and the outer peripheral edge 1 b of the bottom of the pressurizing chamber 1. And it is supported and fixed in a sealed manner (position indicated by a two-dot chain line in FIG. 5).

  On the other hand, when the piston rod 41b is retracted downward, the open / close lid 21 swings around the support shaft 42 and is separated from the bottom of the pressurization vessel 11, thereby opening the bottom of the pressurization chamber 1. At the same time, the briquette B of the grinding sludge GS that is solidified and placed on the filter body 10 falls downward due to its own weight, and is recovered and discharged to the recovery container 45 waiting outside the pressurizing chamber 1.

The recovery container 45 can take out the briquette B of the grinding sludge GS recovered on the spot and dispose of it, or, although not specifically illustrated, can be manually or automatically carried into and out of the apparatus housing 6. Thus, the briquette B of the collected grinding sludge GS is taken out from the collection container 45 and disposed of outside the apparatus housing 6.
Other configurations and operations are the same as those of the first embodiment.

  In addition, Embodiment 1 and 2 mentioned above show the suitable embodiment of this invention to the last, This invention is not limited to this, A various design change is possible in the range.

  As an example, the specific configuration of the briquette discharge unit 4 in the above-described first and second embodiments can be modified to another configuration having the same function, and the drive source is replaced with an air cylinder device, a drive motor, or the like. Can also be adopted.

  Moreover, although Embodiment 1 and 2 mentioned above demonstrated the processing technique for deoiling and solidifying grinding sludge GS, this invention is not limited to the processing of these grinding sludge GS, but liquids, such as oil and water It can also be effectively applied to the dewatering / solidification of other liquid-containing sludge containing sewage sludge, such as sewage sludge, food waste or sewage sludge.

GS grinding sludge (liquid containing sludge)
WF Filter layer B Briquette C Coolant P Discharge position 1 Pressurizing chamber 1a Lower inner surface 2 Sludge supply part (sludge supply means)
3 Compressed air supply unit (Compressed air supply means)
4 Briquette discharge part (briquette discharge means)
5 Device control unit (control means)
6 Device housing 10 Filter body 11 Pressurized container 13 Introduction pipe 14 of sludge supply part Introduction pipe 13a of compressed air supply part Inlet 14a Inlet 15 On-off valve 16 On-off valve 17 Pressure gauge (pressure sensor)
18 Contact sensor (height sensor)
20 Liquid recovery part 21 Opening / closing lid 25 Filter member 26 Holding plate 26a Hole 31 Lifting air cylinder device (lifting part, lifting means, lid opening / closing means)
32 Horizontal air cylinder device (horizontal discharge part, horizontal discharge means)
35 Briquette discharge pusher 36 Discharge port 37 Discharge chute 38 Cleaning scraper 41 Lid opening / closing air cylinder device (lid opening / closing unit, lid opening / closing means)

Claims (21)

A liquid removal / solidification method in which liquid-containing sludge containing liquid such as oil, water, etc. is held by a filter body and is drained and solidified by compressed air,
The filter body is composed of a mesh body having an infinite number of fluid passage holes, and the opening size of the fluid passage holes of the mesh body is set to a size through which the filtration target substance in the liquid-containing sludge can pass. By
In the initial stage of the dewatering step of dewatering the liquid-containing sludge with the compressed air, the substance to be filtered and removed in the liquid-containing sludge is deposited on the filter body to form the upper filter section of the filter body. A method for draining and solidifying liquid-containing sludge, characterized in that The method for removing and solidifying a liquid-containing sludge according to claim 1, comprising the following steps (a) to (d).
(A) a filling step of filling the liquid-containing sludge in a pressure chamber formed by laying the filter body at the bottom (b) introducing compressed air into the pressure chamber filled with the liquid-containing sludge; (C) Dewatering step of ventilating compressed air through liquid sludge (c) Depressurizing sludge compressed into briquette by additionally introducing compressed air into the pressurized chamber after the dewatering step Solidifying step for solidifying (d) Discharging step for discharging briquette of the solidified sludge from the pressurizing chamber The opening size of the fluid passage hole of the mesh body constituting the filter body is such that the substance to be filtered off in the liquid-containing sludge can pass through, and in the initial stage of the liquid removal process using the compressed air. 3. The removal of liquid-containing sludge according to claim 1 or 2, wherein the substance to be removed by filtration in the liquid-containing sludge is set as small as possible within a range in which the substance can be deposited on the filter body. Liquid / solidification method. 2. The method of removing and solidifying liquid-containing sludge according to claim 1, wherein the liquid-containing sludge is a grinding sludge containing metal grinding waste as a substance to be filtered and removed. A dewatering / solidifying device for dewatering and solidifying liquid-containing sludge containing liquids such as oil and water with compressed air,
A pressurizing chamber that can be sealed by laying a filter body at the bottom;
Sludge supply means for supplying liquid-containing sludge into the pressurized chamber;
Comprising compressed air supply means for introducing and supplying compressed air from above the pressurized chamber into the pressurized chamber;
The filter body is composed of a mesh body having an infinite number of fluid passage holes, and the opening size of the fluid passage holes of the mesh body is such that the substance to be removed by filtration in the liquid-containing sludge can pass through. Is set to
In the initial stage of the dewatering step in which the compressed air introduced into the pressurized chamber by the compressed air supply means drains the liquid-containing sludge, the substance to be filtered and removed in the liquid-containing sludge is deposited on the filter body. An apparatus for removing and solidifying liquid-containing sludge, wherein the upper filter part of the filter body is formed. The liquid-containing sludge according to claim 5, further comprising briquette discharging means for discharging the briquette of the sludge solidified in the pressurizing chamber to the outside of the pressurizing chamber at a lower position of the pressurizing chamber. Liquid removal and solidification equipment. Control means for controlling the compressed air supply means, sludge supply means and briquette discharge means in conjunction with each other,
The control means is configured to control the compressed air supply means, the sludge supply means, and the briquette discharge means so as to implement the liquid-containing sludge dewatering / solidifying method according to claim 1 or 2. The apparatus for removing and solidifying liquid-containing sludge according to claim 6. As a sensor means for detecting the situation in the pressurizing chamber, a pressure sensor for detecting the pressure in the pressurizing chamber, and a height sensor for detecting the height of briquettes of solidified sludge in the pressurizing chamber,
When the pressure sensor detects a decrease in the pressure in the pressurizing chamber below a predetermined value, the control means ends the dehydration step, and the height sensor determines whether the height of the briquette exceeds a predetermined value. The liquid-containing composition according to claim 7, wherein the compressed air supply means, the sludge supply means, and the briquette discharge means are controlled so that the solidification step is started when detected. Sludge dewatering and solidification equipment. The opening size of the fluid passage hole of the mesh body constituting the filter body is such that the substance to be filtered off in the liquid-containing sludge can pass through, and in the initial stage of the liquid removal process using the compressed air. 6. The liquid-containing sludge dewatering solution according to claim 5, wherein the substance to be filtered and removed in the liquid-containing sludge is set as small as possible within a range in which the substance can be deposited on the filter body. Solidification equipment. The said filter body is made into the laminated structure which consists of a thin plate-shaped filter member which comprises the said mesh body, and the holding plate which mounts and hold | maintains this filter member so that separation | separation is possible. Liquid-containing sludge dewatering and solidification equipment.   The apparatus for removing and solidifying liquid-containing sludge according to claim 10, wherein the filter member is a wire mesh. The holding plate has a strength capable of bearing a load caused by the compressed air in a dewatering step using compressed air, and has a large number of opening areas for ensuring that the liquid filtered and dropped by the filter member can pass through without resistance. The apparatus for removing and solidifying liquid-containing sludge according to claim 10, wherein a small hole is provided therethrough. The said pressurizing chamber is made into the form of a cylindrical cylindrical body, and is formed in the taper surface which the lower inner surface expands toward the downward direction, The inclusion of Claim 5 characterized by the above-mentioned. Liquid sludge dewatering and solidification equipment. The pressurizing chamber has an inlet for the compressed air supply means and a sludge supply means at the top, and the filter body is laid at the bottom.
The liquid recovery unit for recovering a liquid such as oil or water drained from the liquid-containing sludge is provided below the filter body so as to communicate with the outside of the pressurizing chamber. The apparatus for removing and solidifying liquid-containing sludge according to 5. The bottom of the pressurizing chamber has a structure that can be opened and closed by an open / close lid, and the outer peripheral edge of the filter body is placed and supported on the upper peripheral edge of the open / close lid,
The outer peripheral edge of the filter body is supported and fixed so as to be sandwiched and sealed by the outer peripheral edge of the open / close lid and the pressurizing chamber bottom by applying the open / close lid to the pressurizing chamber bottom. The apparatus for removing and solidifying liquid-containing sludge according to claim 13. The briquette discharging means comprises at least lid opening / closing means for opening / closing the opening / closing lid,
7. The liquid-containing sludge according to claim 6, wherein the sludge briquette solidified in the pressurizing chamber is discharged to the outside of the pressurizing chamber by the opening operation of the lid opening / closing means. Liquid removal and solidification equipment. The briquette discharging means is a lifting means for lowering the sludge briquette solidified in the pressurizing chamber to a discharge position outside the pressurizing chamber; and the sludge briquette at the discharge position is pressed and discharged horizontally. Horizontal discharge means,
7. The liquid-containing sludge dewatering / solidifying device according to claim 6, wherein the lifting / lowering means comprises the lid opening / closing means for opening / closing the opening / closing lid. The elevating means is in the form of an elevating air cylinder device driven by a pneumatic source,
An opening / closing lid for covering the bottom of the pressurizing chamber so as to be openable / closable is attached to and supported by the tip of the piston rod of the lifting / lowering air cylinder device,
18. The liquid-containing sludge dewatering / slipping method according to claim 17, wherein the solidified sludge briquette is placed and supported on the opening / closing lid via the filter body. Solidification equipment. The horizontal discharge means is in the form of a horizontal air cylinder device driven by a pneumatic source,
The briquette discharge pusher that presses the briquette of the sludge that is placed and supported on the opening / closing lid is attached and supported at the tip of the piston rod of the horizontal air cylinder device. Liquid removal and solidification equipment for liquid sludge. A cleaning scraper is provided on each of upper and lower edges of the briquette discharge pusher,
The cleaning scraper cleans the lid joint portion at the bottom of the pressurizing chamber and the upper surface of the filter body by the horizontal reciprocating motion of the pusher for discharging the briquette by the protrusion and retraction of the piston rod of the horizontal air cylinder device. 20. The apparatus for dewatering and solidifying liquid-containing sludge according to claim 19, wherein the apparatus comprises: The lid opening / closing means is in the form of a lid opening / closing air cylinder device driven by an air pressure source,
An opening / closing lid is provided at the tip of the piston rod of the lid opening / closing air cylinder device so as to be swingable openable / closable at the bottom of the pressurizing chamber so that the bottom of the pressurizing chamber can be opened / closed. The apparatus for removing and solidifying liquid-containing sludge according to claim 16.

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