WO2009119295A1 - 固液分離装置、濾過装置、および固液分離方法 - Google Patents
固液分離装置、濾過装置、および固液分離方法 Download PDFInfo
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- WO2009119295A1 WO2009119295A1 PCT/JP2009/054449 JP2009054449W WO2009119295A1 WO 2009119295 A1 WO2009119295 A1 WO 2009119295A1 JP 2009054449 W JP2009054449 W JP 2009054449W WO 2009119295 A1 WO2009119295 A1 WO 2009119295A1
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- Prior art keywords
- separation
- roll
- solid
- liquid
- filter cloth
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/04—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are impervious for filtering
- B01D33/042—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are impervious for filtering whereby the filtration and squeezing-out take place between at least two filtering bands
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/056—Construction of filtering bands or supporting belts, e.g. devices for centering, mounting or sealing the filtering bands or the supporting belts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/58—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element
- B01D33/62—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying
- B01D33/66—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by gases or by heating
- B01D33/663—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by gases or by heating by direct contact with a fluid
Definitions
- the present invention particularly relates to a horizontal vacuum filtration device, a drum-type vacuum filtration device, and a belt press dehydration mechanism only for a mechanical squeezing dehydration mechanism for filtering an object to be treated supplied on a filter cloth that is wound around a plurality of rolls.
- the present invention relates to a solid-liquid separation apparatus suitable for use as a secondary dehydration mechanism of a filtration apparatus such as a filter, a filtration apparatus using the solid-liquid separation apparatus, and a solid-liquid separation method.
- This application is based on Japanese Patent Application No. 2008-078286, Japanese Patent Application No. 2008-266484, and Japanese Patent Application No. 2008-278408, the contents of which are incorporated herein.
- the horizontal vacuum filtration device generally supplies an object to be processed onto a filter cloth that runs continuously or intermittently on the vacuum tray, and the vacuum tray passes through this filter cloth. Filter by vacuum suction. Further, the drum type vacuum filtration device generally performs filtration by vacuum suction in a vacuum chamber through a filter cloth immersed in the workpiece slurry in the liquid tank.
- a differential pressure greater than atmospheric pressure cannot be applied. For this reason, it is difficult to achieve the target liquid content of the filtered cake, and a secondary dehydration device such as a centrifugal separator or a filter press must be prepared separately from the filtration device. There are many cases.
- Patent Documents 1 and 2 a sealing means having a frame-like or annular sealing material that can be advanced and retracted toward the filtered cake at the subsequent stage of a horizontal vacuum filtration device that filters only by such a vacuum tray
- a solid-liquid separation device provided with a pressurizing means for pressurizing a cake with a pressurizing plate or a pressurized fluid (air or the like) inside the opening surface of the sealing material.
- a sealing material is brought into close contact with the cake that has been moved by the traveling of the filter cloth, and the cake is pressurized and dehydrated by a pressurizing means inside thereof.
- the present invention has been made under such a background.
- the present invention can be used as a secondary dehydration mechanism of such a filtration device to sufficiently reduce the liquid content of an object to be processed (cake). It is an object of the present invention to provide a solid-liquid separation apparatus capable of continuous solid-liquid separation, a filtration apparatus including the solid-liquid separation apparatus as a secondary dehydration mechanism, and a solid-liquid separation method.
- the solid-liquid separation device of the present invention is rotatable in the circumferential direction and has a plurality of radial passages between the inner circumferential surface and the outer circumferential surface.
- a substantially cylindrical separation roll having through-holes; a pair of endless separation filter cloths wound around the outer periphery of the separation roll and capable of traveling along the rotation direction of the separation roll;
- a solid-liquid separation device comprising: a workpiece supplied between the pair of separation filter cloths, sandwiched between the pair of separation filter cloths on the outer periphery of the separation roll, and compressed; The object to be processed is dehydrated by being ventilated through the respective through holes.
- the solid-liquid separation method of the present invention is endless on the outer periphery of a substantially cylindrical separation roll that is rotatable in the circumferential direction and has a plurality of through-holes that penetrate radially between the inner peripheral surface and the outer peripheral surface.
- a pair of separation filter cloths are wound so as to overlap each other, run along the rotation direction of the separation roll, and an object to be treated supplied between the pair of separation filter cloths is placed on the outer periphery of the separation roll. It dehydrates by being sandwiched between a pair of separation filter cloths and squeezed, and aerated through each through hole.
- the object to be processed is supplied and sandwiched between the pair of separation filter cloths and wound around the outer periphery of the separation roll rotating in the circumferential direction. It is squeezed by being pressed. For this reason, not only when the rotation of the separation roll and the traveling of the separation filter cloth along the rotation direction are intermittent, but also when it is continuous, the supplied workpiece can be reliably processed.
- the workpiece When pressed against the outer periphery of the separating roll rotating in this way, the workpiece is not only subjected to a pressing force in the radial direction of the separating roll, but also the separation filter cloth on the inner separation roller side across the workpiece. Since the shearing force is also received in the circumferential direction due to the difference in traveling speed with the separation filter cloth on the opposite outer circumferential side, that is, the difference in circumferential speed, the squeezing is efficiently performed. Furthermore, since the processed material thus compressed is aerated in the radial direction of the separation roll, the liquid component is separated through one of the separation filter cloths. Effective removal of the liquid can be promoted even for an object for which it has been difficult to sufficiently reduce the liquid content only by pressure and pressure.
- the separation roll In order to dehydrate the workpiece sandwiched between the pair of separation filter cloths wound around the outer periphery of the separation roll in this way by ventilating in the radial direction of the separation roll, for example, the separation roll What is necessary is just to supply the air etc. for ventilation
- a plurality of ventilation chambers may be formed inside the separation roll so as to be isolated from each other at substantially equal intervals in the circumferential direction. Thereby, it can ventilate in the range where a pair of separation filter cloth which pinched
- the separated liquid is separated from the pair of separation filter cloths by the separation filter cloth wound around the outer circumference of the separation roll. Is discharged through. However, since the roll is cylindrical, the discharged liquid is transferred to the outside of the separation filter cloth on the outer peripheral side and soaks into the dehydrated material again through the separation filter cloth, thereby impairing the decrease in the liquid content. There is a fear.
- the liquid separated from the object to be processed is separated on the outer periphery of the outer separation filter cloth.
- a liquid removal means for removing from the filter cloth may be further provided, and air may be passed through the through hole from the radially inner side to the outer side of the separation roll.
- the liquid content thus dehydrated can be recovered before it soaks into the object to be treated again, thereby preventing the liquid content from deteriorating.
- the liquid separated from the object to be processed on the outer peripheral surface of the outer separation filter cloth may be scraped off.
- the liquid component separated from the object to be processed may be sucked.
- separated from the to-be-processed object can also be collect
- the filtration apparatus of the present invention includes a plurality of rolls; a filter cloth that is wound around the plurality of rolls; a supply unit that supplies an object to be treated on the filter cloth; and the filter cloth rather than the supply unit.
- a solid-liquid separation device according to claim 1, further comprising: a filtering unit disposed on a traveling direction side of the filter cloth; and a solid-liquid separation device disposed on the traveling direction side of the filter cloth with respect to the filtering unit.
- a filtration device for filtering wherein a roll located on a side of the filter cloth in a running direction of the filter means among the plurality of rolls is the separation roll of the solid-liquid separation device, and the filter cloth is the filter cloth One of the pair of separation filter cloths of the solid-liquid separation device.
- the roll of the filtering apparatus on the traveling direction side with respect to the filtering means is a separation roll of the solid-liquid separating apparatus, and the filtering apparatus Since the filter cloth is one of the pair of separation filter cloths of the solid-liquid separator, the object to be treated on the filter cloth filtered by the filtering means is directly on the running direction side of the filter cloth from this filtering means. That is, it is moved to the subsequent stage of the filtering means, sandwiched between the other separation filter cloths and wound around the separation roll, so that it is squeezed and aerated, and is effectively dehydrated as described above.
- the solid-liquid separation device can also support the continuous supply of the object to be processed, the horizontal vacuum filtration device, the drum vacuum filtration device, and the belt press dehydrator in which the filter cloth runs continuously Even with such a filtration device, it is possible to reliably reduce the moisture content of the object to be treated.
- the solid-liquid separation device of the present invention is further wound around the outer periphery of the outer separation filter cloth out of the pair of separation filter cloths wound around the outer periphery of the separation roll.
- a solid-liquid separator further comprising a pressing belt that can travel along the rotation direction of the separation roll, and may be compressed by the pair of separation filter cloths and the pressing belt.
- a compression belt is further wound around the outer periphery of the outer separation filter cloth of the pair of separation filter cloths wound around the outer periphery of the separation roll, and the pair of separation filter cloths and The pressing belt may run along the rotation direction of the separation roll, and may be compressed by the pair of separation filter cloths and the pressing belt.
- the object to be processed is supplied and sandwiched between the pair of separation filter cloths, and the outer periphery of the separation roll rotating in the circumferential direction is While being run along the rotation direction, the belt is wound and pressed, and from the outer periphery, the squeezing belt is also squeezed by being wound and pressed while running in the rotation direction of the separation roll. For this reason, not only when the rotation of the separation roll and the traveling of the separation filter cloth along the rotation direction are intermittent, but also when it is continuous, the supplied workpiece can be reliably processed.
- the workpiece When pressed against the outer periphery of the separating roll rotating in this way, the workpiece is not only subjected to a pressing force in the radial direction of the separating roll, but also the separation filter cloth on the inner separation roller side across the workpiece. Since the shearing force is also received in the circumferential direction due to the difference in traveling speed with the separation filter cloth on the opposite outer circumferential side, that is, the difference in circumferential speed, the squeezing is efficiently performed. And since the processed material squeezed in this way is further aerated in the radial direction of the separation roll, the liquid component is separated through the separation filter cloth on the outer peripheral side, so the surface pressure in the direction perpendicular to the filter cloth is reduced. It is possible to promote effective removal of the liquid even for an object for which it has been difficult to sufficiently reduce the liquid content only by linear pressure and pressurization.
- a squeezing belt is wound around the outer periphery of the separation filter cloth on the outer peripheral side, so that the separation filter cloth and the object to be processed can be reliably pressed against the separation roll side.
- the surface of the squeezing belt further wound around the outer periphery of the outer separation filter cloth among the pair of separation filter cloths wound around the outer periphery of the separation roll even when the ventilation pressure is increased to increase the capacity
- the separation filter cloth is lifted to disperse the pressure fluid (aeration gas), and the liquid removal effect due to aeration is impaired. It is possible to prevent the cake from being blown out and scattered from both sides in the width direction of the separation filter cloth and from the front and back in the running direction, and to improve the liquid removal effect more reliably.
- the squeezing belt may have a higher air permeability than the separation filter cloth so that the squeezing belt does not hinder drainage from the object to be processed through the separation filter cloth.
- the press belt may be a filter cloth or a metal belt made of a wire mesh or a chain as long as it has a high air permeability and can withstand a tension that generates a surface pressure larger than the gas pressure as described above.
- a resin belt made of high-strength fibers such as aramid fiber, polyethylene fiber, polyarylate fiber, carbon fiber, or rubber belt may be used.
- the filtration apparatus of the present invention includes a plurality of rolls; a filter cloth that is wound around the plurality of rolls; a supply unit that supplies an object to be treated on the filter cloth; and the filter cloth rather than the supply unit.
- a solid-liquid separation device according to claim 1, further comprising: a filtering unit disposed on a traveling direction side of the filter cloth; and a solid-liquid separation device disposed on the traveling direction side of the filter cloth with respect to the filtering unit.
- a filtration device for filtering wherein a roll located on a side of the filter cloth in a running direction of the filter means among the plurality of rolls is the separation roll of the solid-liquid separation device, and the filter cloth is the filter cloth One of the pair of separation filter cloths of the solid-liquid separation device.
- the roll of the filtering apparatus on the traveling direction side with respect to the filtering means is a separation roll of the solid-liquid separating apparatus, and the filtering apparatus Since the filter cloth is one of the pair of separation filter cloths of the solid-liquid separator, the object to be treated on the filter cloth filtered by the filtering means is directly on the running direction side of the filter cloth from this filtering means. That is, it is moved to the subsequent stage of the filtering means, sandwiched between the other separation filter cloth, wound around the separation roll together with the squeezing belt, squeezed and aerated, and effectively dehydrated as described above. .
- the separation roll and the separation filter cloth by aeration are used.
- the separation filter cloth can be pressed against the separation roll with sufficient surface pressure and reliably run in the rotation direction as the separation roll rotates.
- the separation roll of the solid-liquid separation device may be a drive roll for running the filter cloth. Thereby, the fall of the driving force can be suppressed and stable running of the filter cloth can be achieved.
- the object to be processed is sandwiched between a pair of separation filter cloths wound so as to overlap the rotating separation roll,
- the workpiece can be effectively squeezed by applying a shearing force in the circumferential direction, and the liquid content is effectively reduced by aeration in the radial direction.
- the filtration device of the present invention it is possible to obtain an object to be treated having a lower liquid content efficiently and economically without using a secondary dehydration device by using such a solid-liquid separation device. it can.
- a transport trouble caused by adhesion to a transport device such as a belt conveyor or a screw conveyor.
- the workpiece is sandwiched between the pair of separation filter cloths wound around the rotating separation roll, and further on the outer periphery thereof.
- the pressure belt is wound around and moved in the rotational direction along with the rotation of the separation roll, so that in addition to the pressing force due to the radial direction of the separation roll, a shearing force in the circumferential direction is applied, and the object to be processed is It can be squeezed effectively.
- the pressure filter belt can prevent the separation filter cloth from floating from the separation roll or the cake from the end of the separation filter cloth due to radial aeration, effectively reducing the liquid content of the workpiece. It becomes possible to separate.
- the filtration apparatus of the present invention it is possible to obtain an object to be processed having a lower liquid content efficiently and economically without using a secondary dehydration apparatus by using such a solid-liquid separation apparatus.
- a transport device such as a belt conveyor or a screw conveyor.
- the reduction of the frictional force between the separation roll and the separation filter cloth due to aeration can be suppressed, and the separation filter cloth can be reliably run integrally in the rotation direction of the separation roll by the squeezing belt.
- FIG. 1 is a schematic side view showing a first embodiment of the filtration device of the present invention.
- FIG. 2 is a schematic side view showing a solid-liquid separator used in the filtration device of the embodiment.
- FIG. 3 is a partially broken perspective view showing a separation roll 2B of the solid-liquid separation device of the same embodiment.
- FIG. 4A is a partial cross-sectional view of the lower side of the separation roll 2B showing a modification of the solid-liquid separation device of the same embodiment.
- FIG. 4B is a perspective view of a suction tube 12A of a modification of the solid-liquid separation device of the embodiment.
- FIG. 5 is a partial cross-sectional view of the lower side of the separation roll 2B showing another modification of the solid-liquid separation device of the same embodiment.
- FIG. 6 is a schematic view showing a modification of the filtration device shown in FIG.
- FIG. 7 is a diagram showing the relationship between the air pressure and the cake liquid content in each of samples A to D in the example of the present invention.
- FIG. 8 is a schematic side view showing a second embodiment of the filtration device of the present invention.
- FIG. 9 is a schematic side view showing a solid-liquid separation device used in the filtration device of the same embodiment.
- FIG. 10 is a partially broken rear view of the solid-liquid separation device of the same embodiment as viewed from the right side of FIG. 9.
- FIG. 1 to 6 show a first embodiment of a solid-liquid separation device of the present invention and a filtration device equipped with the solid-liquid separation device.
- the filtration device in the embodiment has a configuration of a horizontal vacuum filtration device.
- an endless filter cloth 1 is stretched around a plurality of rolls 2 arranged in parallel with each other with the central axis being horizontal.
- One of these is used as a drive roll 2A and is driven to rotate around the central axis, so that the horizontal portion 1A horizontally passed to the upper part of the filter cloth 1 moves in the traveling direction indicated by the arrow F. It becomes possible to run.
- the workpiece P supplied from the supply means 3 disposed on the rear side in the traveling direction F of the horizontal portion 1A is filtered by the filtering means 4 disposed between the drive roll 2A on the traveling direction F side. Filter through filter cloth 1.
- the driving roll 2A is positioned at the end of the horizontal portion 1A on the traveling direction F side, and is rotated by driving means (not shown), thereby causing the filter cloth 1 to travel continuously or intermittently at a predetermined pitch.
- the processed material P is filtered by sucking the liquid component through the filter cloth 1 by a vacuum tray (not shown) that supports the filter cloth 1 in the horizontal portion 1 ⁇ / b> A.
- the solid-liquid separation device according to the first embodiment of the present invention is disposed on the traveling direction F side of the filtering means 4 as shown by a broken line in FIG.
- a pair of endless separation filter cloths 1 and 5 are overlapped on the outer periphery of the separation roll 2B rotated in the circumferential direction toward the rotation direction T. It is assumed that the vehicle can travel along the rotation direction T while being wound around the vehicle.
- the separation roll 2B is a roll positioned next to the drive roll 2A in the traveling direction F among the rolls 2 in the filtration device, and one of the pair of separation filter cloths 1 and 5 is a filter of the filtration device. It is assumed that the cloth 1 is wound around the separation roll 2B as it is.
- the separation roll 2B is arranged so as to have a space below the drive roll 2A and so that the circumferential surfaces thereof overlap each other in plan view.
- the roll 2 of the filtration device other than the drive roll 2A and the separation roll 2B has a sufficiently smaller diameter than the drive roll 2A and the separation roll 2B.
- the next roll 2 ⁇ / b> C of the separation roll 2 ⁇ / b> B in the traveling direction F is disposed so as to be spaced above the separation roll 2 ⁇ / b> B and so that their peripheral surfaces overlap each other in plan view.
- the separation roll 2 ⁇ / b> B has a substantially hollow cylindrical shape, and a large number of cylindrical surface portions are arranged on the inner side of the width of the filter cloth 1 in the central axis direction of the separation roll 2 ⁇ / b> B.
- Through-hole 6 is opened.
- a plurality of partition plates 7 extending in the radial direction from the central axis portion and reaching the cylindrical surface portion in a cross section perpendicular to the central axis line are equally spaced in the circumferential direction. And, it is arranged over the range where the through hole 6 is formed. Both end portions in the central axis direction of these partition plates 7 are closed by circular end plates.
- One end plate is connected to the same number of ventilation pipes 8 as the partition plates 7 so as to communicate with the spaces between the pair of partition plates 7 adjacent in the circumferential direction.
- the same number of ventilation chambers 9 communicating from the ventilation pipe 8 to the through-hole 6 are formed as many as the partition plates 7 and the ventilation pipes 8 and are separated from each other at substantially equal intervals in the circumferential direction. Yes.
- Aeration fluid such as air (compressed air) A or steam supplied to each ventilation pipe 8 is jetted from the through hole 6 to the outer periphery of the separation roll 2B through the ventilation chamber 9 and is ventilated.
- the air A supplied to these ventilation pipes 8 is supplied from a supply source (not shown) to the ventilation pipe 8 fixed to the rotating separation roll 2B via a rotary joint or a multistage rotary joint.
- a predetermined rotation is further performed within a range (range E in FIG. 2) in which the separation filter cloths 1 and 5 are wound in the circumferential direction of the separation roll 2B.
- a valve mechanism (not shown) for controlling the supply of air A is interposed only in the ventilation chamber 9 in the position. With the rotation of the separation roll 2B, the ventilation chamber 9 at a predetermined rotation position is sequentially switched.
- the other separation filter cloth 5 of the pair of separation filter cloths 1 and 5 has the same width as the filter cloth (one separation filter cloth) 1, and is wound around the outer periphery of the separation roll 2B around the inside of the filter cloth 1. At the same time, the outer circumference of the drive roll 2A and the roll 2C is also wound around the outside of the filter cloth 1. Further, the separation filter cloth 5 is wound around a pair of rolls 10 which are located above the drive rolls 2A and 2C and whose distance is larger than the distance between the drive rolls 2A and 2C. It is arranged endlessly. The separation filter cloth 5 is allowed to travel along the traveling direction F of the filter cloth 1 in a portion wound together with the filter cloth 1.
- the rolls 2 and 10 other than the drive roll 2A are driven rolls that are not connected to the drive means, including the separation roll 2B. Further, at least one of the roll 2 of the filtration device and the roll 10 of the solid-liquid separation device, excluding the separation roll 2B, is urged in the direction in which the rolls 2 and 10 are separated from the other rolls 2 and 10. For example, tension control means for controlling the tension of the filter cloth 1 and the separation filter cloth 5 to a predetermined strength is provided. In the solid-liquid separator, a tray 11 is disposed below the separation roll 2B.
- the processed product P filtered by the filtration means 4 is sandwiched between the pair of separation filter cloths 1 and 5 from the outer periphery of the drive roll 2A as shown in FIG.
- the separation filter cloth 5 is separated in the roll 2C, and the roll 2 next to the roll 2C in the traveling direction F is further separated. And peeled from the filter cloth 1 and collected.
- the workpiece P is disposed between the pair of separation filter cloths 1 and 5 on the outer periphery of the separation roll 2B.
- the filter cloth 1 wound around the outer side of the workpiece P is given a predetermined tension by the tension control means, so that it receives a pressing force on the radially inner peripheral side of the separation roll 2B. Squeezed.
- air A penetrates from the ventilation pipe 8 through the ventilation chamber 9 in the range of a predetermined rotational position in the range where the separation filter cloths 1 and 5 are wound as described above.
- the pair of separation filter cloths 1 and 5 that are wound around the separation roll 2B while sandwiching the workpiece P are different in distance from the central axis of the separation roll 2B by the thickness of the workpiece P.
- one separation filter cloth 1 is directly wound around the drive roll 2A and traveled, whereas the other separation filter cloth 5 is driven passively through the one separation filter cloth 1 and the workpiece P. Can be run. For this reason, a circumferential speed difference is generated between the pair of separation filter cloths 1 and 5 on the outer periphery of the separation roll 2B.
- the workpiece P is subjected to a shearing force to shear the workpiece P in the circumferential direction due to the peripheral speed difference, and the workpiece P is efficiently squeezed by the shearing force and the pressing force. Furthermore, since it is also dehydrated by aeration, it is possible to achieve a sufficient reduction in the liquid content even with respect to the workpiece P, which has conventionally been difficult to achieve sufficient solid-liquid separation.
- the workpiece P is dehydrated on the outer periphery of the separation roll 2 ⁇ / b> B that rotates following the traveling of the filter cloth 1. For this reason, even if the filter cloth 1 runs continuously or intermittently in the filtration apparatus, efficient dehydration can be achieved by pressing force, shearing force, and ventilation. Therefore, when the filter cloth 1 is caused to travel by rotating the drive roll 2A continuously or intermittently, for example, the filter cloth 1 is clamped and moved horizontally in the traveling direction F with a predetermined stroke. It can also be applied to a vacuum filter apparatus.
- the roll 2 next to the drive roll 2A on the traveling direction F side with respect to the filtration means 4 is the separation roll 2B in the solid-liquid separation device.
- the filter cloth 1 itself which filters the to-be-processed object P in the filtration means 4 is made into one of a pair of separation filter cloths 1 and 5 of a solid-liquid separator. For this reason, the to-be-processed object P on the filter cloth 1 filtered by the filtration means 4 can be supplied to a solid-liquid separation device by running the filter cloth 1 as it is, and can be efficiently dehydrated as described above.
- a plurality of ventilation chambers 9 venting in the radial direction of the separation roll 2B through the through holes 6 are separated from each other in the circumferential direction in the separation roll 2B. Is formed. For example, aeration is performed even in a portion that does not participate in dehydration other than the range E in which the pair of separation filter cloths 1 and 5 sandwiching the workpiece P is wound around the separation roll 2B. The wasteful consumption can be prevented, and the workpiece P can be intensively ventilated by the vent chamber 9 in the range E.
- Air A may be supplied to all the aeration chambers 9 in the rotation position in the range E around which the separation filter cloths 1 and 5 are wound. However, it is preferable to control the air A to be supplied only to the aeration chamber 9 at a predetermined rotational position in order to suppress the increase in the operating cost of the electric power and the like and the increase in the equipment cost because the supply amount of the air A becomes larger than necessary. Can be dehydrated more efficiently. That is, by performing ventilation by selecting the ventilation chamber 9 by the valve mechanism, the ventilation is always performed at a predetermined rotational position regardless of the rotation of the separation roll 2B, so that dehydration is achieved. On the other hand, since ventilation is not performed at other positions, consumption of unnecessary air A or the like can be more reliably suppressed.
- the workpiece P squeezed on the outer periphery of the separation roll 2B is ventilated through air A or the like through the through-hole 6 on the outer peripheral surface of the separation roll 2B on the inner peripheral side.
- the liquid is separated by the fluid and dehydrated.
- the liquid component separated from the workpiece P is dropped and collected on the tray 11 as described above.
- the separation filter cloths 1 and 5 and the workpiece P are wound around the lower side of the separation roll 2B, the separated liquid is not dropped on the tray 11 and the separation roll 2B There is a possibility that the lowering of the liquid content of the processing object P may be hindered by going around to the lower side and again soaking into the processing object P through the separation filter cloth 1 located on the outer peripheral side.
- the separation filter cloth 1 on the outer circumferential side is further separated from the workpiece P on the outer circumferential side.
- the liquid part removal means which removes a liquid part from this separation filter cloth 1 of the outer peripheral side.
- the liquid component removing unit is a suction unit 12 that sucks and collects the liquid component separated from the workpiece P.
- the suction means 12 is formed in a circular suction pipe 12 ⁇ / b> A so that a plurality of slits 12 ⁇ / b> B extending in parallel with the center line of the suction pipe 12 ⁇ / b> A are penetrated in the radial direction.
- the direction is formed in a row at intervals.
- One end of the suction tube 12A is closed, and a suction device such as a pump (not shown) that sucks air A is connected to the other end.
- such a suction tube 12A has a center line parallel to the center axis of the separation roll 2B as shown in FIG. A plurality of intervals are provided in the circumferential direction below the separation roll 2B so as to face or contact the separation filter cloth 1 on the side. Therefore, the liquid component that has entered the lower side of the separation roll 2B is sucked together with the air A from the slit 12B of the suction pipe 12A in the suction means 12 and collected. For this reason, it can prevent that this liquid component permeates the to-be-processed object P again through the separation filter cloth 1, and can reduce the liquid content rate of the to-be-processed object P more reliably.
- the separation filter cloth 1 on the outer peripheral side is separated from the workpiece P further on the outer peripheral side.
- the scraping means 13 for scraping and removing the liquid from the separation filter cloth 1 may be disposed as the liquid removing means.
- This scraping means 13 is a scraper 13A made of a rectangular plate having elasticity such as a rubber plate, for example, and is disposed so that one side edge thereof is bent and is brought into sliding contact with the outer periphery of the separation filter cloth 1. .
- such a scraper 13 ⁇ / b> A is disposed slightly behind the separating filter cloth 1 in the running direction F rather than directly below the central axis of the separating roll 2 ⁇ / b> B, and one side edge is bent toward the running direction F rear side.
- the separation filter cloth 1 is in contact with the outer periphery.
- the liquid component that has come to the lower side of the separation roll 2B is scraped to the scraper 13A of the scraping unit 13 as the separation filter cloth 1 travels. It is removed from the surface of the separation filter cloth 1 so as to be taken and dropped through the scraper 13A. Therefore, it can prevent that this liquid component permeates into the to-be-processed object P again by collect
- a plurality of scraping means 13 may be provided at intervals in the circumferential direction of the separation roll 2B.
- the drive roll 2A is disposed on the side in the traveling direction F immediately of the filtration means 4, and the separation roll 2B of the solid-liquid separation device is the next roll 2.
- the roll 2 that forms the horizontal portion 1 ⁇ / b> A of the filter cloth 1 that is located on the traveling direction F side of the filtering means 4 is used as the separation roll 2 ⁇ / b> B of the solid-liquid separation apparatus.
- the drive roll 2A may be provided at a position where the filter cloth 1 circulates in the lower part of the filtering device, for example, on the traveling direction F side of the solid-liquid separation device and on the front side of the supply unit 3 in the traveling direction F Good. That is, in a filtration device in which the workpiece P is supplied onto the filter cloth 1 wound around a plurality of rolls 2 and filtered by the filtering means 4 such as a horizontal vacuum filtration device, the filtered workpiece In the range where P is on the filter cloth 1, the solid-liquid separation device of the present invention can be disposed regardless of which roll 2 is the separation roll 2B. However, in the case shown in FIG.
- the filter cloth 1 for filtering the workpiece P in the filtering means 4 is wound around the separation roll 2B as a separation filter cloth on the inner peripheral side, and the solid-liquid separation device.
- the separation filter cloth 5 is wound around the outer peripheral side of the separation roll 2B with the workpiece P interposed therebetween as a separation filter cloth on the outer peripheral side.
- the workpiece P is supplied to the solid-liquid separation device of the above-described embodiment provided in the filtration device, and the liquid content is reduced.
- the pressure of the air A that was separated and then vented from the separation roll 2B was changed (increased), and the liquid content of the cake dehydrated by this solid-liquid separator was measured.
- the objects to be processed P are cakes having different liquid contents, which are four types (samples A to D) having a solid particle size of 2.5 ⁇ m to 30 ⁇ m and filtered by the filtration means 4 only by vacuum dehydration.
- the separation filter cloths 1 and 5 used in this example had an air permeability of 0.5 to 5 cc / sec / cm 2
- the separation roll 2B had through-holes 6 having a diameter of 5 mm drilled at a pitch of 8 mm in the cylindrical surface portion. It is.
- the cake thickness in the solid-liquid separator was 3 to 10 mm
- the dehydration time was 10 to 30 sec
- the pressing pressure was 0.1 to 0.3 MPaG.
- FIG. 7 collectively shows samples A to D and shows the relationship between the air pressure and the moisture content of the cake and its tendency.
- the liquid content is lower than that of the cake only by vacuum dehydration.
- the liquid content of the cake is reduced to almost half as compared with the vacuum dehydration alone.
- the cake liquid content tends to decrease greatly as the air pressure increases.
- the rate of decrease in the liquid content varies depending on the sample, and even if the air pressure is increased, if the amount of air passing through the cake is large, the overall energy efficiency will be deteriorated.
- FIG. 8 to 10 show a second embodiment of the solid-liquid separation device of the present invention and a filtration device equipped with the solid-liquid separation device.
- the filtration device in the embodiment has a configuration of a horizontal vacuum filtration device.
- an endless filter cloth 101 is stretched around a plurality of rolls 102 arranged in parallel with each other with the central axis being horizontal.
- One of them is used as a driving roll 102A and is driven to rotate around the central axis, so that the horizontal portion 101A horizontally passed to the upper part of the filter cloth 101 moves in the traveling direction indicated by the arrow F. It becomes possible to run.
- the workpiece P supplied from the supply means 103 provided on the rear side in the running direction F of the horizontal portion 101A is filtered by the filtering means 104 provided between the driving roll 102A immediately on the running direction F side. It is filtered through the filter cloth 101.
- the driving roll 102A is located at the end of the horizontal portion 101A on the traveling direction F side, and continuously or by being rotated through a variable speed reducer 106 by a driving means 105 such as a motor as shown in FIG.
- the filter cloth 101 is made to travel intermittently at a predetermined pitch.
- the workpiece P is filtered by sucking the liquid through the filter cloth 101 by a vacuum tray (not shown) that supports the filter cloth 101 in the horizontal portion 101A.
- a solid-liquid separator according to the second embodiment of the present invention is disposed on the traveling direction F side of the filtering means 104 as shown by a broken line in FIG.
- a pair of endless separation filter cloths 101, 108 are provided on the outer periphery of the separation roll 107 rotated in the circumferential direction toward the rotation direction T.
- the workpiece P filtered by the filtering means 104 is wound so as to overlap so as to be sandwiched therebetween, and can travel along the rotation direction T.
- the separation filter cloths 101 and 108 are made of, for example, polyethylene fiber or polyester fiber.
- the driving roll 102A of the rolls 102 in the filtration apparatus is a separation roll 107, and one of the pair of separation filter cloths 101 and 108 is the filter cloth 101 of the filtration apparatus wound around the separation roll 107 as it is. It is supposed to be.
- the separation roll 107 (drive roll 102A) has a substantially hollow cylindrical shape, and the cylindrical surface portion thereof has a width that is greater than the width of the filter cloth 101 in the central axis direction of the separation roll 107 as shown in FIG.
- a large number of through holes 109 are opened on the inner side and in the circumferential direction over the entire circumference of the separation roll 107.
- a plurality of vent gas chambers 110 communicating with these through-holes 109 are arranged in a range substantially equal to the range in which the through-holes 109 are formed in the central axis direction and in the circumferential direction. Are formed so as to be separated from each other so as to divide the inside of the separating roll 107 into an arc at substantially equal intervals over the entire circumference of the separating roll 107.
- the same number of ventilation pipes 111 as the ventilation gas chambers 110 are inserted from one end side in the central axis direction (right side in FIG. 10), and are connected to the respective ventilation gas chambers 110.
- Aeration gas A such as air (compressed air) or steam supplied to each ventilation pipe 111 is jetted from the through-hole 109 to the outer periphery of the separation roll 107 through the ventilation gas chamber 110 to be ventilated.
- the ventilation gas A is supplied from a supply source (not shown) to the ventilation pipe 111 fixed to the rotating separation roll 107 via the rotary joint or the multistage rotary joint 112.
- An automatic valve 113 is provided for each ventilation pipe 111 between the ventilation gas branch chamber 112A on the separation roll 107 side connected to the rotary joint 112 and each ventilation pipe 111.
- the automatic valve 113 is opened and closed by the limit switch 113A that is attached to the separation roll 107 and operates in accordance with the rotational position of each ventilation bath chamber 110, so that the ventilation gas A from the ventilation gas branch chamber 112A is a signal gas.
- the automatic valve 113 is controlled to be supplied or not supplied via the supply pipe 113B.
- the automatic valve 113 controlled in this way is further moved to a predetermined rotational position in the aeration gas chamber 110 in the range where the separation filter cloths 101 and 108 are wound in the circumferential direction of the separation roll 107.
- the aeration gas A is continuously supplied only to a certain aeration gas chamber 110 while being sequentially switched as the separation roll 107 rotates. That is, when the vent gas chamber 110 is in this predetermined rotational position, the automatic valve 113 is opened and the vent gas A is always supplied to the vent gas chamber 110 and ejected from the through-hole 109, while other than this predetermined rotational position. In this position, the automatic valve 113 is controlled to be closed and no ventilation is performed.
- the other separation filter cloth 108 of the pair of separation filter cloths 101 and 108 has a width substantially equal to that of the filter cloth (one separation filter cloth) 101. It is possible to travel in the same traveling direction G as the traveling direction F integrally with the filter cloth 101 toward the rotation direction T of the separation roll 107 (drive roll 102A).
- the roll 102B around which the other separation filter cloth 108 is wound next to the separation roll 107 in the traveling direction G is common to the roll 102 around which the filter cloth 101 is wound as shown in FIG.
- the other separation filter cloth 108 is drawn downward from 102B to the opposite side to the filter cloth 101, separated, wound around a plurality of rolls 114, and wound endlessly to reach the outer periphery of the separation roll 107 again. It has been.
- a pressing belt 115 is wound around the outer periphery of the other separation filter cloth 108.
- the squeezing belt 115 is also capable of traveling in the same traveling direction H as the traveling directions F and G along the rotational direction T on the outer periphery of the separating roll 107 together with the pair of separating filter cloths 101 and 108.
- the squeezing belt 115 is a filter cloth similar to the separation filter cloths 101 and 108, a metal belt made of a wire mesh or a chain, or a high-strength fiber such as an aramid fiber, a polyethylene fiber, a polyarylate fiber, or a carbon fiber.
- the air permeability is higher than that of the separation filter cloths 101 and 108.
- the squeezing belt 115 is wider than the separation filter cloths 101 and 108, and both ends in the width direction exceed both ends in the width direction of the separation filter cloths 101 and 108 as shown in FIG.
- the separation filter 107 is wound around the separation roll 107 so as to cover it.
- the lateral width of the squeezing belt 115 is wider than the cake width of the workpiece P that is sandwiched between the pair of separation filter cloths 101 and 108 and is squeezed, it is not necessarily required to be wider than the separation filter cloths 101 and 108.
- the width may be substantially the same as or narrower than the separation filter cloths 101 and 108.
- the squeezing belt 115 next to the separation roll 107 is wound around a common roll 102B around which a pair of separation filter cloths 101 and 108 are wound, and then, as shown in FIG.
- the other separation filter cloth 108 is wound immediately before reaching the separation roll 107. It is wound around the roll 114 ⁇ / b> A together with the other separation filter cloth 108, and is wound endlessly so as to reach the outer periphery of the separation roll 107 again.
- the rolls 102 ⁇ / b> A, 114 ⁇ / b> A, 116 around which the squeezing belt 115 is wound are made larger in diameter than the rolls 102, 114 around which only the other separation filter cloths 101, 108 are wound, and smaller in diameter than the separation roll 107. ing. Further, one of the plurality of rolls 116 is attached to the arm 117C of the squeezing belt tensioning device 117 that is rotatable by the cylinder device 117B around the support shaft 117A, thus rotating the arm 117C. By positioning at a predetermined position, a predetermined tension is applied to the squeezing belt 115.
- At least one end of the other one of the plurality of rolls 116 is attached to the bracket 118B of the squeezing belt meandering correction device 118, which also advances and retreats toward the traveling direction H of the squeezing belt 115 by the cylinder device 118A.
- the bracket 118B back and forth in the running direction H and finely adjusting the inclination of the roll 116 with respect to the running direction H, the meandering of the running of the squeezing belt 115 is corrected.
- the rolls 102, 114, and 116 other than the drive roll 102A (separation roll 107) in the filtration apparatus and the solid-liquid separation apparatus of this embodiment including these rolls 116 are all driven rollers that are not connected to the drive means. It is said that.
- a pressing belt cleaning device 119 is provided in the traveling path of the pressing belt 115, and a separation filter cleaning device 120 is provided in the traveling path of the other separation filter cloth 108, and is also illustrated in the traveling path of one separation filter cloth 101.
- a washing device that is not used is provided, and a tray 121 is disposed at the bottom of the solid-liquid separation device.
- a discharge port 122 for discharging the cake of the material P to be processed solid-liquid separated by the solid-liquid separation device, and from the roll 102B toward the running direction F, respectively.
- a scraper 123, a wire, and the like are disposed so as to be in contact with the surface that has been in contact with the workpiece P. Further, on the further outer peripheral side of the portion where the separation filter cloths 101 and 108 and the compression belt 115 are wound around the separation roll 107, a recovery plate 124 having an arc-shaped cross section is disposed at a distance from the compression belt 115. The liquid component separated by aeration is collected and guided to the tray 121.
- the filtration means 104 of the filtration device is used.
- the filtered object P is sandwiched between the pair of separation filter cloths 101 and 108 on the outer periphery of the separation roll 107 of this solid-liquid separation device, and the squeezing belt 115 is wound around the outer periphery with high tension.
- the separation roll 107 is squeezed by receiving a pressing force on the radially inner peripheral side. Therefore, even when there is a drying step after the solid-liquid separation step of the object P to be processed by the solid-liquid separation device, the load in the drying step can be reduced.
- the distance between the pair of separation filter cloths 101 and 108 wound around the separation roll 107 with the workpiece P sandwiched therebetween differs from the central axis of the separation roll 107 by the thickness of the workpiece P.
- one separation filter cloth 101 is directly wound around the separation roll 107 (drive roll 102A) and traveled, whereas the other separation filter cloth 108 and the pressing belt 115 are separated from the one separation filter cloth 101. It is caused to travel passively via the workpiece P.
- the ventilation gas A passes through the ventilation pipe 111 from the ventilation pipe 111 through the ventilation gas chamber 110 at a predetermined rotational position within the range where the pair of separation filter cloths 101 and 108 are wound as described above.
- 109 is ejected from the separation filter cloth 101, the workpiece P, the separation filter cloth 108, and the squeezing belt 115, and is passed to the radially outer peripheral side of the separation roll 107. Accordingly, the liquid component squeezed from the object to be processed P is separated from the object to be processed P through the separation filter cloth 108 and the squeezing belt 115 together with the aeration gas A, and is dropped onto the recovery plate 124 and recovered. For this reason, it is possible to achieve a sufficient reduction in the liquid content even with respect to the object to be processed P, which has conventionally been difficult to sufficiently separate.
- the compression belt 115 is provided on the outer periphery of the other separation filter cloth 108 on the outer peripheral side wound around the separation roll 107.
- the workpiece P is pressed together with the separation filter cloth 108 by being wound. Therefore, even if the pressure of the aeration gas A is increased in order to increase the liquid removal capacity, the separation filter cloths 101 and 108 are lifted and the pressure fluid (aeration gas A) is dispersed, or the separation filter cloths 101 and 108 are separated. It is possible to prevent the cake from being blown out from both ends in the width direction and from the front and back of the running directions F and G. Therefore, the liquid component can be reliably removed by the ventilation gas A, and the liquid removal effect can be further improved.
- a plurality of ventilation gas chambers 110 are separated from each other in the circumferential direction inside the separation roll 107 and formed at substantially equal intervals, and connected to these ventilation gas chambers 110.
- the vent pipe 111 for supplying the vent gas A is provided with an automatic valve 113, and the vent gas at a predetermined rotational position in the vent gas chamber 110 in the range where the separation filter cloths 101 and 108 are wound.
- the ventilation gas A is continuously supplied only to the chamber 110.
- the opening and closing of the automatic valve 113 is sequentially switched according to the rotation of the separation roll 107, and the state where the ventilation gas A is always blown out regardless of the rotation position of the ventilation gas chamber 110 is maintained. can do. Therefore, it becomes possible to promote more efficient removal of the liquid.
- the surface pressure of the squeezing belt 115 wound around the separation roll 107 is set in the radial direction of the separation roll 107. It is desirable that the pressure be greater than the pressure of the venting gas A (aeration gas pressure). For example, when the aeration gas pressure is 0.4 MPa, the surface pressure of the squeezing belt 115 is desirably about 0.5 MPa. And in the solid-liquid separator of a structure, by adjusting the tension
- the air permeability of the squeezing belt 115 is higher than the air permeability of the separation filter cloths 101 and 108, and the liquid component separated from the workpiece P by the aeration is quickly discharged to collect the recovery plate 124. Can be collected in the tray 121.
- the filter cloth 101 is a pair of separation filter cloths in the solid-liquid separation device.
- the separation roll 107 is one of a plurality of rolls 102 of the filtration device.
- the object P is dehydrated on the outer periphery of the separation roll 107 that rotates as the filter cloth 101 runs as described above.
- efficient dehydration can be achieved by pressing force, shearing force, and ventilation. Therefore, not only when the separation cloth 107 is rotated continuously or intermittently and the filter cloth 101 travels, for example, the filter cloth 101 is clamped and travels by intermittently moving in the traveling direction F with a predetermined stroke. It can be applied to any horizontal vacuum filtration device.
- the filter belt 101 is further wound around and pressed against the outer periphery of the pair of separation filter cloths 101 and 108 wound around the separation roll 107. Can be brought into close contact with the outer periphery of the separation roll 107 to generate a large frictional force. For this reason, even if this frictional force is reduced by ventilation, the separation roll 107 is integrally rotated in the rotation direction T without causing slippage between the separation roll 107 and the separation filter cloth 101. The filter cloth 101 can be stably traveled in the traveling direction F.
- the separation roll 107 can be used as the drive roll 102A of the filter cloth 101 in this filtration apparatus as in this embodiment, and a pair of separation filter cloths can be used.
- the equipment cost and running cost can be reduced.
- such a driving roll 102A needs a certain diameter in order to make the filter cloth 101 run reliably, while the separation roll 107 also has a certain degree because the aeration gas chamber 110 is formed therein. Therefore, by sharing these, the other rolls 102, 114, 116 can be made smaller in diameter than the drive roll 102A and the separation roll 107, which is more economical.
- the solid-liquid separation device and solid-liquid separation method of the present invention can be used as a secondary dehydration mechanism of a filtration device, and can sufficiently reduce the liquid content of the object to be processed and can perform continuous solid-liquid separation.
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Abstract
Description
本出願は、日本国特願2008-078286号と日本国特願2008-266484号と日本国特願2008-278408号とを基礎出願とし、それらの内容をここに取り込む。
また本発明の固液分離方法は、周方向に回転可能であり、内周面と外周面との間を径方向に貫通する複数の貫通孔を有する略円筒形状の分離ロールの外周に、無端状の一対の分離濾布を重なり合うように巻き掛けて、前記分離ロールの回転方向に沿って走行させ、前記一対の分離濾布の間に供給した被処理物を、前記分離ロールの外周でこの一対の分離濾布の間に挟み込んで圧搾し、かつ、前記各貫通孔を介して通気することによって脱水する。
このとき、前記分離ロールの内側に複数の通気チャンバーが、周方向に略等間隔で互いに隔絶されるように形成されてもよい。
これにより被処理物を挟んだ一対の分離濾布が分離ロールに巻き掛けられた範囲で通気を行うことができる。その結果、この範囲以外の脱水に関与しない部分でも通気が行われるのを防ぐことができる。
これにより、通気のためのエアー等の供給量が必要以上に多くなるのを防いで、効率的な脱水を促すことが可能となる。
これにより、こうして脱水された液分が再び被処理物に染み込む前に回収して含液率の悪化を防ぐことができる。
このような液分除去手段として、一つには、前記外側の分離濾布の外周面上の前記被処理物から分離された液分を掻き取ってもよい。
これにより、この液分が被処理物に再び染み込むのを防いで被処理物から分離された液分を回収することができる。
また、これとは別に、あるいはこれと合わせて、他の一つとして、前記被処理物から分離された液分を吸引してもよい。
これにより、被処理物から分離された液分を回収することもできる。
前記固液分離装置の分離ロールが、前記濾布を走行させる駆動ロールであってもよい。
これにより、その駆動力の低下を抑えることができて濾布の安定した走行を図ることができる。
2、10 ロール
2A 駆動ロール
2B 分離ロール
3 供給手段
4 濾過手段
5 分離濾布
9 通気チャンバー
12 吸引手段
13 掻き取り手段
101 濾布(分離濾布)
102、114、116 ロール
102A 駆動ロール
103 供給手段
104 濾過手段
107 分離ロール
108 分離濾布
109 貫通孔
110 通気チャンバー
111 通気配管
113 自動弁
115 圧搾ベルト
117 圧搾ベルト緊張装置
A 通気ガス(エアー)
P 被処理物
F 濾布1、濾布101の走行方向
G 分離濾布108の走行方向
H 圧搾ベルト115の走行方向
T 分離ロール107の回転方向
図4Aにおいてこの液分除去手段は、被処理物Pから分離された液分を吸引して回収する吸引手段12である。この吸引手段12は、例えば図4Bに示すように円管状の吸引管12Aに、この吸引管12Aの中心線に平行に延びる複数のスリット12Bを、径方向に貫通するように、かつこの中心線方向には間隔をあけて1列に形成したものである。この吸引管12Aの一端は閉塞されるとともに、他端にはエアーAを吸引する図示されないポンプ等の吸引装置が接続されている。
Claims (13)
- 周方向に回転可能であり、内周面と外周面との間を径方向に貫通する複数の貫通孔を有する略円筒形状の分離ロールと;
この分離ロールの外周に重なり合うように巻き掛けられて、前記分離ロールの回転方向に沿って走行可能な無端状の一対の分離濾布と;
を備えた固液分離装置であって:
前記一対の分離濾布の間に供給された被処理物が、前記分離ロールの外周でこれら一対の分離濾布の間に挟み込まれて圧搾され、かつ、前記各貫通孔を介して通気されることにより、前記被処理物が脱水される固液分離装置。 - 前記分離ロールの内側に複数の通気チャンバーが、周方向に略等間隔で互いに隔絶されるように形成されている請求項1に記載の固液分離装置。
- 前記分離ロールの前記一対の分離濾布が巻き掛けられた範囲のうち、周方向における所定の範囲に設けられた前記各貫通孔のみを介して通気される請求項1に記載の固液分離装置。
- 前記分離ロールの外周に巻き掛けられた前記一対の分離濾布のうち、外側の分離濾布の外周に、前記被処理物から分離された液分をこの外側の分離濾布から除去する液分除去手段をさらに備え、
前記分離ロールの径方向内側から外側に向けて前記貫通孔を介して通気される請求項1に記載の固液分離装置。 - 前記液分除去手段が、前記外側の分離濾布の外周面上の前記被処理物から分離された液分を掻き取る請求項4に記載の固液分離装置。
- 前記液分除去手段が、前記被処理物から分離された液分を吸引する請求項4に記載の固液分離装置。
- 前記分離ロールの外周に巻き掛けられた前記一対の分離濾布のうち、外側の分離濾布の外周にさらに巻き掛けられて、前記一対の分離濾布とともに前記分離ロールの回転方向に沿って走行可能な圧搾ベルトをさらに備えた固液分離装置であって:
前記一対の分離濾布及び前記圧搾ベルトにより圧搾される請求項1に記載の固液分離装置。 - 前記圧搾ベルトが、前記分離濾布よりも通気度が高い請求項7に記載の固液分離装置。
- 複数のロールと;
これら複数のロールに巻き掛けられて走行する濾布と;
この濾布上に被処理物を供給する供給手段と;
この供給手段よりも前記濾布の走行方向側に配置された濾過手段と;
この濾過手段よりも前記濾布の走行方向側に配置された請求項1または7に記載の固液分離装置と;
を備えた前記被処理物を濾過する濾過装置であって:
前記複数のロールのうち前記濾過手段よりも前記濾布の走行方向側に位置するロールが前記固液分離装置の前記分離ロールであり、かつ、前記濾布が前記固液分離装置の前記一対の分離濾布のうちのいずれか一方である濾過装置。 - 前記固液分離装置の分離ロールが、前記濾布を走行させる駆動ロールである請求項9に記載の濾過装置。
- 周方向に回転可能であり、内周面と外周面との間を径方向に貫通する複数の貫通孔を有する略円筒形状の分離ロールの外周に、無端状の一対の分離濾布を重なり合うように巻き掛けて、前記分離ロールの回転方向に沿って走行させ、前記一対の分離濾布の間に供給した被処理物を、前記分離ロールの外周でこの一対の分離濾布の間に挟み込んで圧搾し、かつ、前記各貫通孔を介して通気することによって脱水する固液分離方法。
- 前記分離ロールの外周に巻き掛けられた前記一対の分離濾布のうち外側の分離濾布の外周にさらに圧搾ベルトを巻き掛けて、これら一対の分離濾布と前記圧搾ベルトとを前記分離ロールの回転方向に沿って走行させ、前記一対の分離濾布及び前記圧搾ベルトにより圧搾する請求項11に記載の固液分離方法。
- 前記分離ロールの外周に巻き掛けられた前記一対の分離濾布のうち外側の分離濾布の外周にさらに巻き掛けられた前記圧搾ベルトの面圧が、前記貫通孔を介して通気する通気ガス圧よりも大きい請求項12に記載の固液分離方法。
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CN200980103318XA CN101925388B (zh) | 2008-03-25 | 2009-03-09 | 固液分离装置、过滤装置及固液分离方法 |
KR1020107017681A KR101192081B1 (ko) | 2008-03-25 | 2009-03-09 | 고액 분리 장치, 여과 장치 및 고액 분리 방법 |
US12/933,009 US8663482B2 (en) | 2008-03-25 | 2009-03-09 | Solid-liquid separating device, filtering apparatus, and solid-liquid separating method |
Applications Claiming Priority (6)
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JP2008078286 | 2008-03-25 | ||
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JP2008266484A JP4381461B2 (ja) | 2008-03-25 | 2008-10-15 | 固液分離装置、濾過装置、および固液分離方法 |
JP2008-266484 | 2008-10-15 | ||
JP2008278408A JP4381462B1 (ja) | 2008-10-29 | 2008-10-29 | 固液分離装置、濾過装置、および固液分離方法 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103285647A (zh) * | 2013-05-29 | 2013-09-11 | 烟台桑尼核星环保设备有限公司 | 一种真空压榨机 |
CN103877774A (zh) * | 2014-03-27 | 2014-06-25 | 宜兴市意达铜业有限公司 | 一种铜合金生产线过滤布循环使用装置 |
JP5736471B1 (ja) * | 2014-01-10 | 2015-06-17 | 月島機械株式会社 | 金属微粉スラリーの固液分離・乾燥設備及びその方法 |
EP3711838A4 (en) * | 2018-12-07 | 2021-10-13 | Tsukishima Kikai Co., Ltd. | SOLID-LIQUID SEPARATION DEVICE AND FILTRATION DEVICE |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54106965A (en) * | 1978-02-08 | 1979-08-22 | Saburou Sugawara | Double filter cloth movement drum type filter |
JPS54157383A (en) * | 1978-06-01 | 1979-12-12 | Fuji Machine Mfg | Cake pressurizing device in cake exfoliation preventive device of vacuum hydroextractor |
JPS56124410A (en) * | 1980-03-06 | 1981-09-30 | Ichikawa Keori Kk | Dehydrator for sludge |
JPS6089991U (ja) * | 1983-11-29 | 1985-06-20 | 日立金属株式会社 | 高圧脱水機の濾過板 |
JPS6089990U (ja) * | 1983-11-24 | 1985-06-20 | 日立金属株式会社 | 高圧脱水機の濾過板 |
JPS6039191Y2 (ja) * | 1980-04-02 | 1985-11-22 | 荏原インフイルコ株式会社 | 脱水装置 |
JPS63134013A (ja) * | 1986-11-26 | 1988-06-06 | Ishigaki Kiko Kk | 多段転着ロ−ル装置 |
JPH01122698A (ja) * | 1987-10-07 | 1989-05-15 | Guy Gaudfrin | 無端の濾過用ウエブを備えたプレスフイルタ |
JPH0344245Y2 (ja) * | 1986-12-25 | 1991-09-18 | ||
JPH0655012A (ja) * | 1992-08-10 | 1994-03-01 | Yamamoto Kogyo Kk | 回転ドラム式脱水装置 |
-
2009
- 2009-03-09 WO PCT/JP2009/054449 patent/WO2009119295A1/ja active Application Filing
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54106965A (en) * | 1978-02-08 | 1979-08-22 | Saburou Sugawara | Double filter cloth movement drum type filter |
JPS54157383A (en) * | 1978-06-01 | 1979-12-12 | Fuji Machine Mfg | Cake pressurizing device in cake exfoliation preventive device of vacuum hydroextractor |
JPS56124410A (en) * | 1980-03-06 | 1981-09-30 | Ichikawa Keori Kk | Dehydrator for sludge |
JPS6039191Y2 (ja) * | 1980-04-02 | 1985-11-22 | 荏原インフイルコ株式会社 | 脱水装置 |
JPS6089990U (ja) * | 1983-11-24 | 1985-06-20 | 日立金属株式会社 | 高圧脱水機の濾過板 |
JPS6089991U (ja) * | 1983-11-29 | 1985-06-20 | 日立金属株式会社 | 高圧脱水機の濾過板 |
JPS63134013A (ja) * | 1986-11-26 | 1988-06-06 | Ishigaki Kiko Kk | 多段転着ロ−ル装置 |
JPH0344245Y2 (ja) * | 1986-12-25 | 1991-09-18 | ||
JPH01122698A (ja) * | 1987-10-07 | 1989-05-15 | Guy Gaudfrin | 無端の濾過用ウエブを備えたプレスフイルタ |
JPH0655012A (ja) * | 1992-08-10 | 1994-03-01 | Yamamoto Kogyo Kk | 回転ドラム式脱水装置 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103285647A (zh) * | 2013-05-29 | 2013-09-11 | 烟台桑尼核星环保设备有限公司 | 一种真空压榨机 |
CN103285647B (zh) * | 2013-05-29 | 2015-10-21 | 烟台桑尼核星环保设备有限公司 | 一种真空压榨机 |
JP5736471B1 (ja) * | 2014-01-10 | 2015-06-17 | 月島機械株式会社 | 金属微粉スラリーの固液分離・乾燥設備及びその方法 |
CN103877774A (zh) * | 2014-03-27 | 2014-06-25 | 宜兴市意达铜业有限公司 | 一种铜合金生产线过滤布循环使用装置 |
EP3711838A4 (en) * | 2018-12-07 | 2021-10-13 | Tsukishima Kikai Co., Ltd. | SOLID-LIQUID SEPARATION DEVICE AND FILTRATION DEVICE |
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