JP6604601B2 - Cyclone separator - Google Patents

Cyclone separator Download PDF

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JP6604601B2
JP6604601B2 JP2014116906A JP2014116906A JP6604601B2 JP 6604601 B2 JP6604601 B2 JP 6604601B2 JP 2014116906 A JP2014116906 A JP 2014116906A JP 2014116906 A JP2014116906 A JP 2014116906A JP 6604601 B2 JP6604601 B2 JP 6604601B2
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sludge
cyclone cylinder
liquid
provided
cyclone
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JP2015229147A (en
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道雄 鈴木
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永進テクノ株式会社
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  The present invention relates to a cyclonic separation device for separating fine solids (sludge) contained in a processing liquid using a cyclone and regenerating a pure processing liquid.

  Patent Document 1 (Japanese Patent Laid-Open No. 2005-279609) is directly or indirectly connected to a suction system or a discharge system of a liquid pump, and contains a liquid by causing a swirl flow to be introduced into a cyclone cylinder. A hydrocyclone apparatus for separating sludge from a cyclone has an accelerating blade rotated by a drive unit, and the accelerating blade is configured to be able to accelerate a liquid regardless of a flow rate by a liquid pump. To do. In this device, the liquid flowing in from the upper side of the cyclone cylinder is configured to separate sludge downward while taking a cyclonic motion in the cyclone cylinder, and to take out pure liquid from above. The sludge is recovered by the sludge recovery section through the outlet where the valve is opened.

    Patent Document 2 (Japanese Patent Application Laid-Open No. 2009-18278) discloses a separation tank having a cylindrical portion, a conical portion that is provided at the lower end of the cylindrical portion and has a diameter reduced downward, and a swirling flow in the separation tank. An introduction pipe for introducing a liquid in a tangential direction of the inner peripheral surface of the cylindrical portion, and a liquid that is accommodated in the separation tank coaxially with the cylindrical portion and flows in from the lower opening from the upper part of the separation tank In the cyclone type filtration device provided with a lead-out pipe that leads to the outside, the lead-out pipe is rotatably supported with respect to the separation tank, and has a configuration including a motor that rotationally drives the lead-out pipe in the swirling direction of the swirling flow. Disclosed is a cyclonic filtration device that promotes swirling by rotating a tube in a swirling direction of swirling flow. In this apparatus, a liquid introduced from an introduction pipe formed on the side surface of the cylindrical portion of the separation tank (in this embodiment, a grinding liquid containing foreign matter) swirls in the separation tank and protrudes into the separation tank from above. Since the lead-out pipe provided to rotate in the swiveling direction, foreign matter is efficiently removed from the grinding fluid, the foreign matter is lowered below the separation tank, and the grinding fluid from which foreign matter has been removed passes through the opening of the lead-out tube. It is taken out upward.

  Patent Document 3 (Japanese Patent Application Laid-Open No. 2010-142894) discloses a vertical liquid cyclone cylinder, and a swirl flow restriction passage body vertically communicated with a sludge discharge port that opens downward at the lower end of the inner space thereof. The swirl flow restricting passage body restricts the swirl flow of the liquid around the vertical center line of the passage cylinder in the course of the liquid passing through the passage cylinder and the passage cylinder passing the liquid in the vertical direction. Disclosed is a hydrocyclone device having a configuration including a vertically oriented plate-like portion. Also in this apparatus, after the liquid is introduced from the upper side surface to make the swirl flow, the separated sludge descends and descends from the lower sludge discharge port to the swirl flow restriction passage body, and gradually decreases in the diameter gradually decreasing portion and the outlet pipe portion. It is supposed to be precipitated. Further, the grinding liquid from which the foreign matter has been removed is stored in the cleaning liquid tank from the cleaning liquid outlet provided in the upper part of the liquid cyclone cylinder.

JP-A-2005-279609 JP 2009-18278 A JP 2010-142894 A

  As described above, in the conventional liquid and sludge separation apparatus using a cyclone, the inlet of the untreated liquid containing the sludge is disposed on the upper side surface of the cyclone cylinder in which the fluid performs a cyclonic motion, and the sludge is separated. Thereafter, the outlet of the processed liquid is arranged at the upper center or upper side surface of the cyclone cylinder. In addition, a sludge discharge port is disposed at the bottom of the cyclone cylinder, and in order to take it out, after the cyclone is stopped, the valve is opened to discharge the sludge. For this reason, there is a problem that continuous sludge cannot be discharged.

  Further, in the conventional configuration, the swirling flow of the untreated liquid swirls from above to below, but the direction of taking out the treated liquid is upward, so the direction is changed from below to above in the cyclone cylinder. Therefore, there is a problem that the separation efficiency is lowered due to the occurrence of significant turbulent flow.

  In view of the above, the present invention provides a cyclone separator that continuously discharges the treated liquid and discharges the separated sludge and improves the sludge separation efficiency.

  Therefore, the cyclonic separation device according to the present invention introduces a treatment liquid containing sludge into a cyclone cylinder for turning and introducing a treatment liquid that is disposed on the upper part of the cyclone cylinder and contains the sludge. A treatment liquid introduction section, a clean liquid discharge section having a clean liquid guide pipe extending from the lower center of the cyclone cylinder to the inside of the cyclone cylinder and guiding the clean liquid from which sludge has been removed, and the clean liquid discharge section A pump means connected to the downstream side and depressurizes the inside of the cyclone cylinder, a sludge discharge section provided outside the clean liquid discharge section below the cyclone cylinder, provided in the sludge discharge section, and the pump means A non-return means for closing the sludge discharge section when the pressure inside the cyclone cylinder is lower than the atmospheric pressure; and a treatment liquid introduction section. Is a pressure adding means for adding the pressure inside the cyclone tube and is formed by the swirling flow biasing means for accelerating the swirling flow of the processing liquid flowing into the cyclone tube.

  With the above configuration, when the pump means (for example, a diaphragm pump) is driven by connecting to a discharge port that discharges the processing liquid containing sludge of the processing machine, the pressure in the cyclone cylinder is negative with respect to atmospheric pressure. Therefore, the processing liquid is sucked from the processing liquid introducing portion and flows into the cyclone cylinder so as to turn. At this time, the inside of the cyclone cylinder becomes a negative pressure with respect to the atmospheric pressure. As a result, the sludge discharge part is closed by a check means (for example, a gravity check valve mechanism), so that the processing liquid is passed through the processing liquid introduction part. To fill the cyclone cylinder. In addition, a predetermined pressure is applied to the processing liquid in the cyclone cylinder by the pressure applying means and the swirl flow urging means to further urge the swirl force. As a result, the pressure in the cyclone cylinder becomes a positive pressure with respect to the atmospheric pressure, so the check means is opened, and the liquid containing a large amount of sludge separated outside the swirling flow is continuously discharged from the sludge discharge section. Is. In this way, the sucked processing liquid swirls in the cyclone cylinder to separate the sludge in the outer circumferential direction, and the clean liquid from which the sludge has been separated is sucked into the clean liquid guide pipe from the center, and is passed through the pump means. It is discharged outside and reused. Moreover, the liquid containing the separated sludge is continuously discharged from the sludge discharge section.

  As described above, the first aspect of the present invention is that the pump means for sucking the processing liquid containing sludge into the cyclone cylinder is arranged on the downstream side of the clean liquid discharge section. As a result, clean liquid from which sludge has been removed always flows through the pump means, so that wear, damage, clogging, and the like due to sludge do not occur. Further, according to the second aspect of the present invention, a clean liquid guide pipe extending from the lower center of the cyclone cylinder in a predetermined range is provided, so that the sludge moves outward by centrifugal force in the swiveling motion in the cyclone cylinder. Since the clean liquid swirls in the center, the clean liquid is guided to the clean liquid guide pipe and discharged by the pump means, and the sludge that has moved outward is disposed outside the clean liquid guide pipe. It is possible to discharge continuously from the sludge discharge section. Further, since the moving direction of the processing liquid does not change from the top to the bottom in the cyclone cylinder, turbulent flow does not occur, so that smooth discharge is possible.

  Further, according to the present invention, the cyclone cylinder is constituted by a cylindrical portion in which the processing liquid introduction portion is provided at an upper portion, and a conical portion that is provided below the cylindrical portion and is reduced in diameter downward. It is desirable that the tip of the conical portion is provided with the clean liquid guide pipe extending in a predetermined length in the cylindrical portion, and the sludge discharge portion is provided on a side surface of the conical portion. The cyclone cylinder is composed of a cylindrical part and a conical part, and a clean liquid guide pipe is extended inward from the tip of the conical part, and a sludge discharge part is provided on the side of the conical part. From the outside of the swirling flow, the liquid containing sludge can be taken out efficiently and continuously. Depending on the treatment liquid conditions such as the amount (concentration) of sludge and the size of sludge, the conical portion may be omitted and a flat bottom shape may be used.

  Furthermore, it is preferable that a strainer for removing sludge having a predetermined size or larger is provided on the upstream side of the processing liquid introduction unit. In this case, the present invention is limited to the case where sludge having a predetermined size or larger is present in the processing liquid, and the strainer may be omitted particularly when sludge having a predetermined size or larger is not present. Thus, depending on the specifications of the processing machine, the strainer may not be provided.

  Furthermore, the pressure applying means is a suction blade provided downstream of the processing liquid introduction part, and the swirl flow biasing means is a swirling pressure blade provided in the upper part of the cyclone cylinder, and the suction blade and The swivel pressure blade is preferably fixed to a rotating shaft, for example, a rotating shaft connected to a driving shaft of an electric motor.

  By driving the electric motor as the rotating means, the suction blade and the swirl pressurizing blade rotate to apply pressure continuously to the processing liquid introduced from the processing liquid introduction section into the cyclone cylinder. Since the sludge can be discharged continuously and smoothly, the swirling speed of the swirling flow in the cyclone cylinder can be increased, and the sludge separation efficiency can be increased.

  Further, it is preferable that a rectifying cone that protrudes in a conical shape is provided at the tip of the rotating shaft so as to face the clean liquid guide tube. Since the flow straightening cone extends to a position facing the suction port of the clean liquid guide pipe, the vortex generated near the center of the swirling flow can be prevented, and the clean liquid can be smoothly guided to the clean liquid guide pipe.

  Furthermore, it is preferable that the cyclonic separator is mounted on a movable frame. As a result, the cyclonic separator can be moved.

  According to the present invention, since the pump means is provided on the downstream side of the clean liquid discharge section, only the clean liquid from which the sludge has been separated passes through the pump means, so that the life of the pump means can be extended. is there.

  Further, according to the present invention, the processing liquid moves from the top to the bottom while rotating in the cyclone cylinder, and the cleaning liquid is continuously discharged from the cleaning liquid discharging part and the sludge is discharged from the sludge discharging part. Is capable of turning in a natural flow, so that the separation ability is improved. In addition, since unnecessary turbulent flow can be prevented, an effect that the temperature rise of the treatment liquid can be suppressed can also be achieved.

  Furthermore, since the cyclonic separator of the present invention is movable, it is connected to a discharge port for discharging processing liquid containing sludge from various processing machines, and the clean liquid from which sludge has been removed is returned to the processing machine. Therefore, the processing liquid can be reused and the processing liquid can be continuously supplied.

FIG. 1 is a schematic configuration diagram showing the configuration of the present invention. FIG. 2 is a front view of the cyclonic separator of the present invention. FIG. 3 is a partial cross-sectional view including the cyclone cylinder of the cyclonic separator of the present invention. 4 is a partially enlarged cross-sectional view of the portion shown in FIG.

  The cyclonic separator 1 according to the present invention is connected to a discharge port from which processing liquid containing sludge such as a processing machine is discharged, sucks the processing liquid, and again uses the clean liquid separated from the processing liquid as the processing machine. It can be returned. For this reason, as shown in FIG. 1, a cyclone type separation apparatus 1 according to the present invention is provided with a cyclone cylinder 2 for introducing a treatment liquid containing sludge and making a swiveling motion, and an upper part of the cyclone cylinder 2 to provide sludge. A treatment liquid introduction section 3 for introducing a treatment liquid containing the cyclone cylinder 2 into the cyclone cylinder 2 and a clean liquid induction in which a clean liquid is introduced from the lower center of the cyclone cylinder 2 into the cyclone cylinder 2 to remove the sludge. A clean liquid discharge section 5 having a pipe 4; a pump means 6 connected to a downstream side of the clean liquid discharge section 5 to depressurize the cyclone cylinder 2; and the clean liquid discharge section 5 below the cyclone cylinder 2 When the sludge discharge part 7 provided on the outside and the pressure inside the cyclone cylinder 2 are lower than the atmospheric pressure by the pump means 6 provided in the sludge discharge part 7 Non-return means 8 for closing the sludge discharge part 7, pressure applying means 9 provided in the treatment liquid introduction part 3 for applying pressure to the inside of the cyclone cylinder 2, and treatment liquid flowing into the cyclone cylinder 2 The swirl flow biasing means 10 for promoting the swirl flow is constituted. In addition, a strainer 11 for pre-processing sludge having a predetermined size or more is disposed on the upstream side of the processing liquid introducing unit 3 and further drives the pressure applying means 9 and the swirl flow urging means 10. Rotating means (for example, an electric motor) 12 is provided. Reference numeral 13 denotes a processing liquid introduction pipe connected to a discharge port of a processing machine or the like, 14 is a clean liquid discharge port, and 15 is a sludge discharge port.

  With the above configuration, when the pump means 6 (for example, a diaphragm pump) is driven by connecting to a discharge port for discharging processing liquid containing sludge of the processing machine, the pressure in the cyclone cylinder 2 is negative with respect to atmospheric pressure. Since the pressure is increased, the processing liquid is sucked from the processing liquid introduction unit 3 and flows into the cyclone cylinder 2 so as to turn. At this time, the inside of the cyclone cylinder 2 becomes a negative pressure with respect to the atmospheric pressure. As a result, the sludge discharge section 7 is closed by the check means 8 (for example, a gravity check valve mechanism), so that the processing liquid is introduced into the processing liquid. The cyclone cylinder 2 is filled through the part 3. A predetermined pressure is applied to the processing liquid in the cyclone cylinder 2 by the pressure applying means 9 and the swirling flow biasing means 10 to further bias the swirling force. As a result, the pressure in the cyclone cylinder 2 becomes positive with respect to the atmospheric pressure, so that the check means 8 is opened, and a liquid containing a large amount of sludge separated to the outside of the swirling flow is continuously supplied from the sludge discharge section 7. It will be discharged. Thus, the sucked processing liquid is swirled in the cyclone cylinder 2 to separate the sludge in the outer peripheral direction, and the clean liquid from which the sludge has been separated is sucked into the clean liquid guide pipe 4 from the center, and the pump means 6 It is discharged to the outside and reused. Further, the liquid containing the separated sludge is continuously discharged from the sludge discharge section 7.

  As shown in FIG. 2, the cyclonic separation device 1 according to the present invention is mounted on a frame 17 having casters 16, thereby moving to the vicinity of various processing machines and discharging from the processing machines. The treatment liquid containing the sludge is sucked and separated into sludge and clean liquid so that the clean liquid can be reused.

  The cyclonic separation device 1 pretreats and removes a processing liquid introduction pipe 13 connected to a processing liquid outlet of a processing machine or the like and a large sludge exceeding the processing capacity connected to the processing liquid introduction pipe 13. A strainer 11 is installed on the frame 17. The outlet side of the strainer 11 is connected to the opening 20 via a pipe 18. Since the pipe 18 is connected to the opening 20 along the peripheral tangent line of the opening 20 that opens to the top of the cyclone cylinder 2, the treatment liquid swirls along the peripheral inner surface of the opening 20 while rotating the cyclone cylinder. 2 is designed to flow into 2.

  As shown in FIGS. 2 and 3, the cyclone cylinder 2 includes a cylindrical portion 2A and a conical portion 2B attached to the lower portion of the cylindrical portion 2A. A treatment liquid introduction part 3 is provided on the upper part of the cylindrical part 2A. The treatment liquid introduction part 3 includes an opening 20 connected to the pipe 18 and closes the upper part of the cylindrical part 2 </ b> A of the cyclone cylinder 2. In addition, as shown in FIGS. 3 and 4, the treatment liquid introduction unit 3 includes a suction blade 21 disposed in the vicinity of the opening 20, a rectifying blade 22 fixed to the lower portion of the suction blade 21, and A swirl pressure vane 23 attached to the straightening vane 22 is provided, and the suction vane 21, the straightening vane 22, and the swirl pressure vane 23 constitute the pressure applying means and the swirl flow biasing means of the present invention. Is. A rectifying cone 24 is fixed to the lower end of the rotating shaft 12A. Further, the rotating shaft 12A is coupled to a driving shaft of an electric motor 12 as a rotating means by a coupling 12B, and is rotatably held by a radial / thrust bearing 12C. The rotary shaft 12A is provided with a lip seal 12D.

  The conical portion 2B is provided with a clean liquid guide pipe 4 extending through the swirl space 25 inside the cyclone cylinder 2 at the apex at the center of the lower end thereof, and the central apex from which the clean liquid guide pipe 4 extends. A sludge discharge pipe 7A constituting the sludge discharge portion 7 is provided in the vicinity of the side portion of the portion. The sludge discharge pipe 7A is provided with a check valve mechanism (not shown) as a check means. This check valve mechanism is structured so as to be opened when the pressure in the swirling space 25 inside the cyclone cylinder 2 is high and closed when the pressure is low.

  A clean liquid discharge pipe 5A connected to the clean liquid guide pipe 4 is connected to a diaphragm pump 6 as a pump means via a pipe 6A, and an outlet of the diaphragm pump 6 is connected to a clean liquid discharge port 14. It is. The clean liquid discharge port 14 is connected to a tank that supplies the clean liquid to the processing machine, and can circulate the clean liquid. This makes it possible to reuse the clean liquid.

  The sludge discharge pipe 7A is connected to a disposal container (not shown), for example, and is discharged to a disposal container as a treatment liquid containing a large amount of sludge.

  With the structure described above, the cyclonic separation device 1 that is moved to the vicinity of the processing machine and connected to the processing machine operates the diaphragm pump 6 so that the pressure in the swirling space 25 in the cyclone cylinder 2 is reduced to the atmospheric pressure. By setting the negative pressure, the check valve mechanism 8 of the sludge discharge unit 7 is closed, and the processing liquid is introduced into the cyclone cylinder 2 from the processing liquid introduction unit 3. This processing liquid is introduced from the processing machine through the strainer 11 by the suction force of the diaphragm pump 6, and further electrically operates the suction blade 21, the rectifying blade 22, and the swirling pressure blade 23 disposed in the vicinity of the opening 20. By rotating by the motor 12, the introduction of the processing liquid is promoted and the swirling motion of the processing liquid is promoted. Since the treatment liquid swirls in the cyclone cylinder 2, the sludge contained in the treatment liquid moves to the outside of the swirl flow by the centrifugal force of the swirl movement, so that the vicinity of the center of the swirl flow becomes a clean liquid. This clean liquid is guided to the clean liquid guide pipe 4 extending into the cyclone cylinder 2 by the suction force of the diaphragm pump 6, the pressure application by the suction blade 21 and the swirl pressurization blade 23, and the acceleration of the swirl speed, and the diaphragm pump 6 Through the clean liquid discharge port 14 and returned to the processing liquid storage container of the processing machine.

  Further, since the pressure in the swirling space 25 in the cyclone cylinder 2 becomes positive with respect to the atmospheric pressure due to the pressure applied by the suction blade 21 and the swirling pressure blade 23, the check valve mechanism 8 of the sludge discharge section 7 is opened. Therefore, there is a possibility that the processing liquid containing a large amount of sludge may be connected from the sludge discharge pipe 7A of the sludge discharge section 7 to, for example, a disposal tank, a post-processing mechanism (apparatus), etc. (bag filter, magnet separator, etc. Because it is high).

  As described above, according to the present invention, it is possible to continuously remove sludge from the processing liquid containing sludge discharged from a processing machine or the like, and to continuously discharge the clean liquid and sludge from which sludge has been removed. It is possible.

  The cyclonic separator according to the present invention not only separates unnecessary solid components from the liquid (treatment liquid) containing the above-described separation, so-called unnecessary solid components (sludge etc.), but also converts effective solid components into liquid components. Or a method of separating a processing liquid composed of two liquids having different specific gravities into respective liquids, removal of fine bubbles in the processing liquid (degassing), and the like. However, when used for removing bubbles, bubbles are discharged from the center and liquid is discharged from the outside.

DESCRIPTION OF SYMBOLS 1 Cyclone-type separation device 2 Cyclone cylinder 3 Process liquid introduction part 4 Clean liquid induction pipe 5 Clean liquid discharge part 6 Pump means (diaphragm pump etc.)
7 Sludge discharge part 8 Check means (check valve mechanism)
9 Pressure applying means 10 Swirling flow energizing means

Claims (6)

  1. A cyclone tube for introducing a treatment liquid containing sludge to make a swivel motion;
    A treatment liquid introduction section disposed at an upper portion of the cyclone cylinder and introducing a treatment liquid containing sludge into the cyclone cylinder;
    A clean liquid discharge part having a clean liquid guide pipe extending from the lower center of the cyclone cylinder to the inside of the cyclone cylinder and guiding the clean liquid from which sludge has been removed,
    A pump means connected to the downstream side of the clean liquid discharge section and depressurizing the inside of the cyclone cylinder;
    A sludge discharge part provided outside the clean liquid discharge part below the cyclone cylinder;
    A non-return means provided in the sludge discharge section, and closing the sludge discharge section when the pressure inside the cyclone cylinder is lower than the atmospheric pressure by the pump means;
    A pressure applying means that is provided in the processing liquid introduction section and applies pressure to the inside of the cyclone cylinder;
    Swirl flow biasing means for promoting swirl flow of the processing liquid flowing into the cyclone cylinder;
    A cyclone type separation device comprising: a rectifying cone that protrudes in a conical shape at the tip of a rotating shaft that rotates together with the swirl flow urging means and faces the clean liquid guide tube.
  2.   The cyclone cylinder is configured by a cylindrical portion in which the processing liquid introduction portion is provided at an upper portion, and a conical portion that is provided below the cylindrical portion and has a diameter reduced toward the lower portion. The cyclone separator according to claim 1, wherein the clean liquid guide pipe extending in a predetermined length is provided in the cylindrical part, and the sludge discharge part is provided on a side surface of the conical part.
  3.   2. A strainer for removing sludge having a predetermined size or larger is provided on the upstream side of the processing liquid introduction unit when sludge having a predetermined size or larger is mixed in the processing liquid. Or the cyclonic separation apparatus of 2.
  4.   The pressure applying means is a suction blade provided downstream of the processing liquid introduction section, and the swirl flow urging means is a swirling pressure blade provided in the upper part of the cyclone cylinder. The cyclone separator according to any one of claims 1 to 3, wherein the blade is fixed to a rotating shaft connected to a driving shaft of the rotating means.
  5.   The cyclonic separator according to any one of claims 1 to 4, wherein the pump means is a diaphragm pump.
  6.   The cyclonic separator according to any one of claims 1 to 5, wherein the cyclonic separator is mounted on a movable frame.
JP2014116906A 2014-06-05 2014-06-05 Cyclone separator Active JP6604601B2 (en)

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JP6604601B2 true JP6604601B2 (en) 2019-11-13

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Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5523670B2 (en) * 1976-11-10 1980-06-24
WO1989009653A1 (en) * 1988-04-08 1989-10-19 Conoco Specialty Products Inc. Cyclone separator
ES2162280T3 (en) * 1996-04-25 2001-12-16 Fan Separator Gmbh Device for separating the heavest fractions from the lightest fractions of water turbish liquids through the action of a centrifugal force.
JP3537138B2 (en) * 2002-05-24 2004-06-14 株式会社 さとう総業 Dissolved inorganic substance adsorption device, dissolved inorganic substance adsorption method and dissolved inorganic substance adsorbent
DE102004045823A1 (en) * 2004-09-22 2006-03-23 Voith Paper Patent Gmbh Process for fractionating an aqueous paper fiber suspension and hydrocyclone for carrying out the process
JP4621802B1 (en) * 2010-02-09 2011-01-26 株式会社ワールドケミカル Self-priming solid-liquid separator

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