JP2015202430A - solid-liquid separator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solid-liquid separator capable of surely and continuously separating solid matter and a liquid for a long term.SOLUTION: A solid-liquid separator A comprises: a cylindrical filter portion 21 collecting solid matter Sd by centrifugal force during rotation; a brush portion 5 being disposed at the inside of the filter portion 21 and rotating in the same direction as the filter portion 21; and a drive portion 6 rotating and driving the filter portion 21 and the brush portion 5. The brush portion 5 is provided with a brush 51 sliding on the inner surface of the filter portion 21 and is relatively rotated to the filter portion 21 by changing the number R1 of revolution of the filter portion 21 and the number R2 of revolution of the brush portion 5.

Description

  The present invention relates to a solid-liquid separator that separates a liquid and a solid by centrifugal force and collects them separately.

  As one of apparatuses for separating solids and liquids from a slurry containing solids, there is a centrifugal dehydrator (for example, see JP 2009-195829 A). The centrifugal dehydrator includes a cylindrical drum that is rotatably arranged, and a screw that is rotatably arranged inside the drum. The drum includes a cylindrical filter having pores, and the pores are formed in such a size that the solid matter cannot pass through.

  By rotating the drum, the slurry is pressed against the inner wall of the drum by centrifugal force, and the liquid contained in the slurry passes through the pores and flows out of the drum. On the other hand, the solid and the liquid (water) firmly bonded to the solid cannot pass through the pores of the filter and accumulate on the inner wall of the drum. As described above, the centrifugal dehydrator separates the slurry into solid and liquid by the rotation of the drum.

  When the centrifugal dehydrator is operated for a long period of time, solids that cannot pass through the filter accumulate in the drum. In the centrifugal dehydrator, the screw is rotated relative to the drum, the solid matter accumulated on the inner surface of the drum is scraped, and the solid matter is moved in the axial direction. And it is possible to discharge a liquid and a solid substance separately.

JP 2009-195829 A

  The screw has an outer diameter substantially equal to the inner diameter of the drum, and the solid matter accumulated in the drum is scraped off by rotating the screw in the drum. When the solid matter inside the drum is scraped off by the screw, the solid matter is pressed against the pores of the filter at the outer peripheral portion of the screw, and the solid matter is clogged in the pores.

  Therefore, in order to remove the clogging of the pores, in the centrifugal dehydrator described in Japanese Patent Application Laid-Open No. 2009-195829, washing water is supplied from a washing nozzle provided outside the drum to wash the pores. Clean the filter clog regularly. Thus, in the centrifugal dehydrator, it is necessary to stop the equipment for cleaning the filter clogging, and it is difficult to continuously process the slurry. Further, the centrifugal dehydrator requires a structure for supplying cleaning water to the cleaning nozzle and the cleaning nozzle, and the structure becomes complicated.

  The present invention has been made to solve the above-described problems, and an object thereof is to provide a solid-liquid separator that can reliably separate solids and liquids continuously for a long period of time. To do.

Therefore, the present inventor has achieved the present invention as a result of intensive studies to achieve the above object. The present invention is a solid-liquid separator that separates an inputted mixture of liquid and solid into liquid and solid by centrifugal force and discharges the liquid and solid separately, and is arranged rotatably. And a cylindrical separation container that collects the solid matter, a brush portion that is disposed in the separation container so that a central axis thereof overlaps the separation container, and rotates in the same direction as the separation container, and the separation container And a drive unit that rotationally drives the brush unit, and the brush unit includes a brush provided to rub the inner surface of the separation container, and the number of rotations of the separation container and the brush unit By changing the number of rotations, the brush portion rotates relative to the separation container.

  According to this configuration, the separation container separates (dehydrates) water from the liquid and solid mixture and scrapes the solid collected in the separation container with the brush portion, so the separation container is clogged. It is hard to cause. Thereby, it is possible to stably separate the solid and the liquid continuously over a long period of time.

  In the above-described configuration, the brush of the brush portion is arranged in a spiral shape, and the relative rotation direction of the brush portion with respect to the separation container is such that the brush arranged in the spiral shape is solid, The rotation direction and number of rotations of the separation container and the rotation direction and number of rotations of the brush part are determined so as to be the rotation direction to be pushed to the discharge side. By comprising in this way, the solid substance collected by the said filter part can be discharged | emitted reliably.

  The said structure WHEREIN: The said separation container may be provided with the filter part which formed the filter through which the said liquid passes and the said solid substance was collected in the cylinder shape.

  The said structure WHEREIN: The negative pressure generation part which generate | occur | produces a negative pressure and attracts | sucks the said solid substance is connected with the front-end | tip at the side where the solid substance of the said filter part is discharged | emitted. By comprising in this way, it is possible to attract the solid matter of the part which a brush does not reach, and to discharge outside. Thereby, it can suppress that a solid substance is clogged.

  In the above configuration, the filter portion is erected so that the central axis is erected, and at least a part of the peripheral wall is formed in a tapered shape.

  The said brush part has the taper-shaped outer peripheral surface of the same gradient as the inner surface of the said filter part in the said structure.

  In the above-described configuration, the separation container has a cylindrical inflow cylinder portion that has an opening at the top and has an opening at the top, extends downward from a lower end surface of the separation container, and communicates with the inside of the separation container; The inflow tube portion has an outflow tube portion disposed so as to coincide with the central axis and not in contact with the inflow tube portion, and the inflow tube portion includes an inflow portion for press-fitting the processing liquid. A through hole penetrating from the outer surface to the inner surface is formed in the upper portion of the outflow tube portion, the brush portion is fixed to an upper end portion of the outflow tube portion, and the upper end of the brush is While reaching the opening of the separation container, the lower end of the brush may be located below the lower end of the through-hole, and the brush may be arranged to send solids upward by rotation. .

  The said structure WHEREIN: The liquid introduction part for guide | inducing a liquid to the said penetration part may be formed in the said brush part.

  In the above configuration, the brush portion is arranged so as to be movable in the axial direction with respect to the separation container, and the brush portion is configured such that the tip of the brush is pressed against the inner surface of the filter portion by centrifugal force. It is arranged in the position. By comprising in this way, it becomes possible to raise the efficiency which scrapes off the said solid substance by the said brush while suppressing abrasion of the said brush. In addition, since the brush portion can be appropriately adjusted, stable scraping performance can be obtained even when there is a manufacturing error or when the tip of the brush is worn out over a long period of operation.

  In the above configuration, the first driven pulley that rotates integrally with the separation container, the second driven pulley that rotates integrally with the brush portion, and the drive portion, which are connected to the first driven pulley by a belt. The first drive pulley, the second drive pulley provided in the drive unit and connected to the second driven pulley by a belt, and the central axes of the first drive pulley and the second drive pulley are aligned with each other. And a ratio between the first driven pulley and the first drive pulley and a ratio between the second driven pulley and the second drive pulley are different. By comprising in this way, it is possible to rotate the separation container and brush part which rotate with different rotation speed with one motor | power_engine.

  The said structure WHEREIN: 10 rpm or more and 400 rpm or less may be sufficient as the difference between the rotation speed of the said separation container, and the rotation speed of the said brush part.

  ADVANTAGE OF THE INVENTION According to this invention, the solid-liquid separator which can isolate | separate a solid substance and a liquid reliably continuously for a long period can be provided.

It is a disassembled perspective view of the solid-liquid separator concerning this invention. It is sectional drawing of the solid-liquid separator concerning this invention. It is a figure which shows schematic arrangement | positioning of the solid-liquid separator concerning this invention. It is a bottom view of a fan part. It is a figure which shows the rotation state of the filter part and brush part of the operation state of the solid-liquid separator concerning this invention. It is the expanded sectional view cut | disconnected along the axis | shaft of the filter part and brush part which are shown in FIG. It is a figure which shows typically the motion of the circumferential direction of the filter part and brush part which are shown in FIG. It is a schematic sectional drawing which shows the flow of the air of the solid-liquid separator concerning this invention. It is the perspective view which cut | disconnected a part of pretreatment apparatus which performs the pretreatment before using the solid-liquid separator concerning this invention. It is sectional drawing which shows the state which is performing the preliminary process of a solid-liquid separator. It is sectional drawing which shows the state which is performing the preliminary process of a solid-liquid separator. It is sectional drawing which shows the state which is performing the preliminary process of a solid-liquid separator. It is a disassembled perspective view of the other example of the solid-liquid separator concerning this invention. It is sectional drawing of the other example of the solid-liquid separator shown in FIG.

  A solid-liquid separator according to the present invention will be described with reference to the drawings.

(First embodiment)
1 is an exploded perspective view of a solid-liquid separator according to the present invention, FIG. 2 is a cross-sectional view of the solid-liquid separator according to the present invention, and FIG. 3 is a schematic arrangement of the solid-liquid separator according to the present invention. FIG. 4 is a bottom view of the fan unit.

  As shown in FIGS. 1-3, the solid-liquid separator A concerning this invention is the housing | casing 1, the dehydration drainage part 2, the solid discharge part 3, the cover body 4, the brush member 5, and a drive. A portion 6 and an inflow nozzle 7 are provided. And the solid-liquid separator A concerning this invention isolate | separates a liquid (here water) and a solid substance from the fluid (henceforth a process liquid) which flows in from the inflow nozzle 7, and discharges them separately. is there. Details of each part will be described below.

  As shown in FIGS. 1 and 2, the housing 1 includes a flat base 10 that constitutes a bottom portion, a support wall 11 that is erected from the base 10, and a first support that is attached to the support wall 11. 12, a second support portion 13, and a lid holding portion 14. The first support portion 12 is fixed to the support wall portion 11 with a fixing screw 15. The second support portion 13 is fixed to a fixed position of the support wall portion 11 with a fixing screw 16. On the other hand, a long hole 111 extending in the vertical direction is formed in a portion of the support wall portion 11 where the first support portion 12 is fixed, and the fixing screw 15 can be moved in the long hole 111 to provide the first support. The fixing position of the part 12 can be changed in the vertical direction. In addition, by forming a hole (not shown) through which the fixing screw 15 of the first support part 12 passes in a direction (horizontal direction) orthogonal to the long hole 111, the fixing position of the first support part 12 is set in the vertical direction and horizontal direction. The direction can be adjustable.

  As shown in FIG. 1, the 1st support part 12 is provided with the flat plate part of a magnitude | size which the whole lower end part of the water stop cylinder part 20 mentioned later of the dehydration drainage part 2 contacts. Moreover, the 2nd support part 13 is provided with the flat plate part which has a width | variety smaller than the internal diameter of the solid substance collection cylinder part 31 mentioned later of the solid substance discharge part 3. FIG.

  Further, the base 10 is provided with an alling br3 (see FIGS. 2 and 3). The base 10 rotatably supports a second rotating shaft 32 (to be described later) of the solid discharge unit 3 via a bearing br3. A bearing br2 is also attached to the second support portion 13 (see FIGS. 2 and 3), and the second rotation shaft 32 is rotatably supported via the bearing br2. That is, the second rotating shaft 32 is rotatably supported at different locations on the base 10 via the bearing br3 and on the second support 13 via the bearing br2. Thereby, the second rotating shaft 32 is less likely to be shaken during rotation. A through hole 101 is formed in the base 10. Through this through hole 101, a solid material Sd described later is discharged to the outside.

  The first support portion 12 is attached with a bearing br1 (see FIGS. 2 and 3). The first support portion 12 rotatably supports the first rotating shaft 22 of the dewatering drainage portion 2 via the bearing br1. Further, a through hole 120 is formed in the first support portion 12. The through-hole 120 is a hole for discharging the liquid separated in the dewatering drainage unit 2, and a drainage pipe 26 described later is attached thereto. Further, the first support portion 12 is provided with an adjusting screw 121 for adjusting the height of the first support portion 12. The adjustment screw 121 has a male screw formed on the outer peripheral surface thereof, and adjusts the height of the first support portion 12 using a nut 122 that is screwed with the male screw. Specifically, the height of the first support portion 12 is adjusted by bringing one end of the adjustment screw 121 into contact with the base portion 10 and operating the nut 122. As shown in FIG. 2, the nut 122 is attached above and below the first support portion 12, but may be provided only on the lower side.

  The lid holding portion 14 is a beam-like member that holds a later-described holding cylindrical portion 41 of the lid body 4. The lid holding portion 14 has a known configuration for holding a holding cylindrical portion 41 such as a clamp, and the end opposite to the holding cylindrical portion 41 is attached and fixed to the support wall portion 11. Is done. The lid holding part 14 may be detachable with respect to the support wall part 11 and moves so as not to obstruct the attachment of the dewatering drainage part 2 of the lid 4 to the filter part 2 described later (for example, , It may be rotatable about the support wall 11. The lid holding part 14 should just be firmly fixed to the support wall part 11 at least when the solid-liquid separator A operates.

  The dewatering drainage section 2 includes a water stop cylinder section 20, a filter section 21 (separation container), a first rotating shaft 22, a flange section 23, a first driven pulley 24, and a fan section 25 (negative pressure generating section). And a drain pipe 26. The filter part 21, the first rotating shaft 22 and the flange part 23 are integrally formed, and can be considered as a filter part as a whole. The filter unit 21 includes a cylindrical body 211 having a tapered shape such that one end thereof is narrowed, and a mesh filter 212 disposed so as to be in contact with the inner surface of the internal space 210 of the cylindrical body 211. The cylinder 211 has innumerable drain holes 213 penetrating the inner surface and the outer surface. For example, the shape of the filter part 21 of the dewatering drainage part 2 can include an inner diameter of the end portion having a larger outer shape of 200 mm and an inner diameter of the smaller one of 70 mm.

  The dewatering drainage unit 2 is configured to separate the water of the treatment liquid supplied to the internal space 210 and the solid matter Sd by centrifugal force when the filter unit 21 rotates. That is, as the filter unit 21 rotates, a centrifugal force acts on the processing liquid. By the centrifugal force, the water in the treatment liquid passes through the mesh filter 212 and the drain hole 213 and is discharged radially and outward. Further, the solid Sd is stopped (collected) by the cylinder 211 or the mesh filter 212.

  The size of the mesh of the mesh filter 212 is a size capable of collecting the assumed solid matter Sd, that is, the size of the solid matter Sd. In addition, when the solid substance Sd is larger than the drain hole 213, the mesh filter 212 does not need to be attached.

  By rotating the filter unit 21, the water in the processing liquid is discharged radially outward by centrifugal force. In order to prevent the water discharged by the centrifugal force of the filter part 21 from being scattered outside the solid-liquid separator A, the water stopper cylinder part 20 is enclosed so as not to contact the outside of the filter part 21. As shown in FIG. 2, the upper end portion of the water stopper cylinder portion 20 is configured to be the same as or higher than the upper end portion of the filter portion 21. Further, the lower end portion of the water stopper cylinder portion 20 is fixed to the first support portion 12 in a watertight manner. In this way, the water discharged from the filter part 21 suppresses water leakage from the lower end part of the stopper cylinder part 20 by being fixed in a watertight manner. That is, the water stopper cylinder 20 and the first support 12 are connected in a watertight manner to form a container for storing water.

  In addition, as described above, the first support portion 12 is formed with the through hole 120. The through hole 120 is formed in an area surrounded by the water stopper cylinder 20. A drain pipe 26 for discharging the water of the processing liquid is attached to the outside (lower side) of the through hole 120. The water accumulated in the space surrounded by the water stopper cylinder portion 20 and the first support portion 12 is discharged to the outside through the through hole 120 and the drain pipe 26. Since the water discharged from the drainage pipe 26 does not contain the solid matter Sd, it can be sent to the drainage or the next water treatment as it is. In the solid-liquid separator A, the drain pipe 26 is connected to the through-hole 120 of the first support portion 12, but the present invention is not limited to this, and the portion where water collects the solid Sd is not limited thereto. The structure which can form the flow path which does not flow in can be widely adopted. Further, the upper surface of the first support portion 12 may be an inclined surface that is inclined so that water flows toward the through hole 120.

  In the dewatering drainage part 2, the filter part 21 is arranged so that the thin part is the lower part. And the 1st rotating shaft 22 is continuously provided in the edge part with the smaller outer diameter of the axial direction edge part of the dewatering drainage part 2. As shown in FIG. The first rotating shaft 22 has a cylindrical shape and includes an internal space 221. Further, the internal space 221 of the first rotating shaft 22 is communicated with the internal space of the filter unit 21. Although details will be described later, the solid separated from the moisture by the filter unit 21 flows into the internal space 221.

  A fan portion 25 is provided at an end portion of the first rotating shaft 22 opposite to that connected to the filter portion 21, and a first driven pulley 24 is attached to an intermediate portion. The first driven pulley 24 is firmly fixed so as to rotate integrally with the first rotating shaft 22. A first drive belt bt1 described later is wound around the first driven pulley 24, and the power of the drive unit 6 is transmitted by the first drive belt bt1 to rotate. As the first driven pulley 24 rotates, the filter unit 21 and the fan unit 25 connected to the first rotating shaft 22 also rotate.

  In addition, the 1st driven pulley 24 and the 1st rotating shaft 22 may be formed integrally. Moreover, although the external shape of the 1st driven pulley 24 is larger than the external shape of the 1st rotating shaft 22, the same outer diameter may be sufficient. In that case, the structure which utilizes some 1st rotating shafts 22 as the 1st driven pulley 24 may be sufficient.

  The fan unit 25 has a disk-shaped member provided on the first rotation shaft 22. The fan unit 25 has a through hole at the center, and the through hole communicates with the internal space 221 of the first rotating shaft 22. That is, in the dewatering drainage unit 2, the internal space 210 of the filter unit 21, the internal space 221 of the first rotating shaft 22, and the through hole of the fan unit 25 communicate with each other. That is, the coupling body of the filter unit 21, the first rotating shaft 22, and the fan unit 25 is itself formed in a cylindrical shape. In addition, although mentioned later for details, solid substance Sd passes through this space, and solid substance Sd is discharged | emitted separately from water.

  As shown in FIG. 4, a plurality of blades 251 protrude from the lower surface of the fan unit 25. And the several blade | wing 251 shown in FIG. 4 is arranged in the circumferential direction. The fan unit 25 has a so-called turbo fan shape that generates an air flow in the radial direction by rotation. The fan portion 25 is provided with a flange 33 described later so as to be close to the axial end portion of the blade 251. Since the flange 33 is provided, air is efficiently discharged radially outward by the rotation of the fan unit 25, that is, a negative pressure is generated in the central portion.

  When the filter unit 21 is rotating, a downward air flow is generated in the internal space 210 of the filter unit 21 and the internal space 221 of the first rotation shaft 22 due to the negative pressure of the fan unit 25. In the lower end part of the filter part 21 and the internal space 221 of the first rotating shaft 22, the solid matter Sd is sucked downward by the flow of air (pressure difference). In addition, the solid matter Sd that has flowed into the portion of the fan unit 25 where the blades 251 are formed moves radially outward along the blades 251 by centrifugal force and is discharged to the outside of the fan unit 25.

  The solid matter separated in the dewatering drainage unit 2 is formed so as to flow into the solid matter discharge unit 3. The solid discharge unit 3 includes a solid collection cylinder 31, a second rotating shaft 32, a flange 33, a solid discharge cylinder 34, a flange 35, and a second driven pulley 36.

  The solid material collecting cylinder portion 31 is disposed so as to surround the fan portion 25 so as not to contact the fan portion 25. The solid matter collecting cylinder portion 31 is fixed to the second support portion 13. The solid material Sd discharged radially outward from the fan unit 25 comes into contact with the inner surface of the solid material collecting cylinder unit 31 and is collected. The solid matter that has come into contact with the inner surface of the solid matter collecting cylinder part 31 falls by gravity and falls downward from the gap between the flange 33 and the solid matter collecting cylinder part 31. In addition, the solid collection cylinder part 31 may be arrange | positioned so that it may become concentric with the fan part 25, and may be arrange | positioned so that it may decenter. By arranging it eccentrically, it is also possible to intentionally concentrate the flow of air inside and adjust the drop position of the solid Sd.

  Moreover, since the solid matter collection cylinder part 31 has a shape that covers the first driven pulley 24 of the dewatering drainage part 2, a notch 311 for inserting the first drive belt bt1 is provided (see FIG. 1). ). Since the second support portion 13 includes a flat plate portion that is narrower than the inner diameter of the solid matter collecting portion 31, the dropped solid matter Sd moves downward from the gap between the solid matter collecting cylinder portion 31 and the second support portion 13. Fall. The solid matter collecting cylinder part 31 has a gap with the fan part 25 that allows the solid matter Sd to pass therethrough, thereby suppressing upward air flow and flowing downward with a flow rate of a certain level or more. An air flow can be generated. Thereby, the solid substance Sd adhering to the inner surface of the solid substance collecting cylinder part 31 is blown downward. Thereby, it can suppress that solid substance Sd accumulates on the inner surface of the solid substance collection cylinder part 31. FIG.

  As described above, the second drive shaft 32 is rotatably supported by the second support portion 13 via the bearing br2. Further, the end portion is rotatably supported by the base portion 10 via the bearing br3. As described above, the second rotating shaft 32 is stably rotated by being rotatably supported by the two bearings br2 and br3 separated in the axial direction. Further, the flange 33 and the flange 35 are fixed apart from each other in the axial direction of the second rotating shaft 32. The portion sandwiched between the flange 33 and the flange 35 is rotatably supported by the second support portion 13 via the bearing br2.

  The solid matter discharge cylinder part 34 is provided in order to suppress the fallen solid matter Sd from being scattered outside. The solid material discharge cylinder portion 34 has a lower end portion fixed to the base portion 10. The solid matter discharge cylinder part 34 has a cylindrical shape whose inner diameter is larger than that of the solid substance collection cylinder part 31, and is arranged so that the solid substance Sd falling from the solid substance collection cylinder part 31 is not scattered outside. . A through hole 101 for discharging the solid matter Sd to the outside is formed in a portion surrounded by the solid matter discharge cylinder portion 34 of the base portion 10. In the case of a configuration in which the solid matter collecting cylinder portion 31 is arranged eccentrically with respect to the fan portion 25 and the solid matter Sd is concentrated, the through hole 101 is formed in a lower portion of the concentrated portion (a portion where the solid matter Sd is concentrated and dropped). By forming so that the solid Sd can be discharged efficiently.

  A second driven pulley 36 is provided on the second rotating shaft 32 so as to be adjacent to the opposite side of the flange 35 to the flange 33. The second driven pulley 36 is firmly fixed so as to rotate integrally with the second rotating shaft 32. A second drive belt bt2, which will be described later, is wound around the second driven pulley 36, and the power of the drive unit 6 is transmitted and rotated by the second drive belt bt2. Since the second driven pulley 36 is firmly fixed to the second rotating shaft 32, the second rotating shaft 32 also rotates when the second driven pulley 36 rotates.

  The flange 35 and the second driven pulley 36 are disposed so as to be surrounded by the solid matter discharge cylinder portion 34. The solid matter discharge cylinder portion 34 is provided with a notch 341 for inserting the second drive belt bt2. By rotating the flange 35 and / or the second driven pulley 36, a swirling airflow is generated inside the solid matter discharge cylinder portion 34, and the swirling airflow guides the solid matter Sd to the through hole 120. Also good.

  When the second driven pulley 36 is rotated by the second drive belt bt <b> 2, a tensile force acts on the second driven pulley 36 in the radial direction of the second rotation shaft 32. Since the second rotating shaft 32 is rotatably supported by the bearings br2 and br3 with the second driven pulley 36 interposed therebetween, even if a pulling force acts on the second driven pulley 36, the second rotating shaft 32 is unlikely to be bent. Thereby, the 2nd rotating shaft 32 can rotate smoothly.

  The solid material discharge unit 3 is held in the housing 1 by the base 10 and the second support unit 13. The dewatering drainage unit 2 is supported by the housing 1 by fixing the first support unit 12 to the support wall 11 with the fixing screw 15 in a state where the solid material discharge unit 3 is attached to the housing 1. The At this time, the second rotating shaft 32 of the solid material discharge unit 3 passes through the internal space 221 of the first rotating shaft 22. Furthermore, the tip of the second rotation shaft 32 is disposed in the internal space 210 of the filter unit 21. In addition, the filter part 21, the 1st rotating shaft 22, the fan part 25, and the 2nd rotating shaft 32 are arrange | positioned so that a center axis may correspond.

  The brush unit 5 is attached to the tip of the second rotating shaft 32. The brush portion 5 is a member having a tapered shape, and includes a recess 50, a brush 51, and a fixing screw 52. The recessed portion 50 is a bottomed recessed hole extending in the axial direction from the end portion on the small diameter side of the brush portion 5, and the tip of the second rotating shaft 32 is inserted therein. A through-hole through which the fixing screw 52 is inserted is provided at the back of the recess 50. The brush 51 is a bundle of a plurality of brush wires 510 (see FIG. 7 described later), and is provided so as to protrude radially outward from the tapered surface of the brush portion 5.

  The brush 51 is provided in a spiral shape in the axial direction of the brush portion 5. In addition, in the brush part 5 shown in FIG. 1, although the brush 51 is a left-handed spiral, it is not limited to this. The brush wire 510 may be a nylon brush, but is not limited thereto. Further, by using a brush wire 510 having an outer diameter smaller than the lattice size of the mesh filter 212, the solid matter Sd that has entered the mesh filter 212 can be effectively scraped.

  As shown in FIG. 5, which will be described later, the fixing screw 52 is rotatably supported by the brush portion 5. The distal end of the fixing screw 52 is disposed so as to be exposed inside the recess 50. A female screw hole is formed at the tip of the second rotary shaft 32, and the fixing screw 52 is screwed into the female screw hole, so that the brush 5 is prevented from coming out of the second rotary shaft 32 and is relatively It is fixed so that it does not rotate. Further, the position of the brush portion 5 can be finely adjusted in the axial direction (vertical direction) by the screwing amount of the fixing screw 52 into the female screw hole. By adjusting the position of the brush portion 5 in the axial direction, the distance between the tip of the brush line 510 of the brush 51 and the mesh filter 212 of the filter portion 21 (contact pressure when arranged so as to contact) can be adjusted. It is possible. The taper number of the brush part 5 is preferably the same as or substantially the same as the taper number of the inner surface of the internal space 210 of the filter part 21.

  And the cover body 4 is fixed to the upper part of the filter part 21. As shown in FIG. The lid 4 is a disk-shaped member that can completely (watertightly) cover the upper end of the filter unit 21. And the holding | maintenance cylindrical part 41 is rotatably attached to the center part of the cover body 4 via the bearing br4. Further, an inflow nozzle 7 for inflowing (supplying) the processing liquid into the filter unit 21 is provided on the inner surface of the holding cylinder unit 41. The lid body 4, the holding cylinder portion 41, and the inflow nozzle 7 are provided so that the central axes coincide with each other.

  The lid body 4 is fixed to the upper end portion of the filter portion 21 using a known mechanism such as a screw. At this time, the lid body 4 is fixed so that the filter unit 21 and the central axis coincide. Then, as shown in FIG. 2, the holding cylindrical portion 41 is held by the lid holding portion 14. Since the holding cylindrical portion 41 and the lid portion 4 are in a rotatable state via the bearing br4, the lid holding portion 14 holds the holding cylindrical portion 41, so that the lid portion 4 rotates to the lid holding portion 14. It is in a state of being held possible. Thereby, the dewatering drainage part 2 is rotatably supported by the first support part 12 via the bearing br1 and is rotatably supported by the lid holding part 14 via the bearing br4. The inflow nozzle 7 is fixed to the holding cylindrical portion 41 and is provided so as to penetrate the lid portion 4. The holding cylindrical portion 41 and the inflow nozzle 7 may be integrally formed.

  The dehydrating and discharging unit 2 and the solid material discharging unit 3 are rotated by a driving unit 6. The drive unit 6 includes a first drive pulley 61, a second drive pulley 62, a drive shaft 63, a first drive belt bt1, and a second drive belt bt2. The drive unit 6 includes a motor (not shown) (for example, an electric motor, a pneumatic motor, etc.) that supplies power to the drive shaft 63.

  As shown in FIG. 3, the drive shaft 63 is disposed in parallel with the first rotation shaft 22 and the second rotation shaft 32. A first drive pulley 61 is fixed to a portion near one end of the drive shaft 63. A second drive pulley 62 is fixed to a portion near the other end of the drive shaft 63. And the vicinity part of the axial direction both ends of the drive shaft 63 and the part between the 1st drive pulley 61 and the 2nd drive pulley 62 are rotatably supported by bearings br5, br7, and br6. The bearings br5, br6, and br7 are attached to members provided in the housing 1.

  The first drive belt bt1 is wound around the first drive pulley 61 and the first driven pulley 24. The second drive belt bt2 is wound around the second drive pulley 62 and the second driven pulley 36. In the driving unit 6, the first driving pulley 61 and the second driving pulley 62 are rotated by the rotation of the rotating shaft 63, and the first driven pulley 24 and the second driving belt bt 2 are connected via the first driving belt bt 1 and the second driving belt bt 2. Power is transmitted to the second driven pulley 36. Thereby, it is possible to rotationally drive both the dewatering drainage part 2 and the solid matter discharge part 3 with one prime mover.

  In the drive unit 6, the first drive pulley 61 is formed to have a larger diameter than the second drive pulley 62. Thereby, the rotation speed (rotation speed) of the dewatering drainage part 2 can be made higher than the rotation speed (rotation speed) of the solid matter discharge part 3. The ratio between the first drive pulley 61 and the first driven pulley 24 and the ratio between the second drive pulley 62 and the second driven pulley 36 are adjusted so that the first drive belt bt1 and the second drive belt bt2 have the same length. It is also possible to become. Accordingly, the belt can be used in common and the belt tensioner can be omitted, so that the structure can be simplified.

  The axial length of the first drive pulley 61 is longer than that of the second drive pulley 62. This is because the first drive belt bt1 can be appropriately wound around the first drive pulley 61 and the first driven pulley 24 even when the height of the first support portion 12 is adjusted up and down. Since the position of the solid discharge unit 3 with respect to the housing 1 is always constant or substantially constant, the position of the second driven pulley 36 is difficult to shift, so that the second drive pulley 62 is long enough to handle the error. I just need it.

  The operation of the solid-liquid separator A according to the present invention described above will be described with reference to the drawings. FIG. 5 is a view showing a rotating state of the filter part and the brush part in an operating state of the solid-liquid separator according to the present invention, and FIG. 6 is an enlarged cross section cut along the axes of the filter part and the brush part shown in FIG. 7 is a diagram schematically showing the circumferential movement of the filter unit and the brush unit shown in FIG. 6, and FIG. 8 is a schematic cross section showing the air flow of the solid-liquid separator according to the present invention. FIG.

  In the solid-liquid separator A, the dewatering drainage unit 2 and the solid matter discharge unit 3 are rotationally driven by the driving unit 6. As shown in FIG. 5, the filter part 21 of the dewatering drainage part 2 rotates at a rotational speed R1 counterclockwise in plan view. Similarly, the brush unit 5 that rotates integrally with the solid matter discharge unit 3 also rotates in the same direction as the dewatering drainage unit 2 at a rotation speed R2. As described above, the outer diameter of the first drive pulley 61 is larger than the outer diameter of the second drive pulley 62. Therefore, the rotation speed R1 of the filter unit 21 is higher than the rotation speed R2 of the brush unit 5. Therefore, the relative rotation direction of the brush unit 5 with respect to the filter unit 21 is clockwise in plan view, and the rotation number is the rotation number R3. The rotational speed R3 is the difference between the rotational speed R1 and the rotational speed R2.

  Thus, in the solid-liquid separator A, the processing liquid is supplied from the inflow nozzle 7 in a state where the dewatering drainage unit 2 and the solid matter discharge unit 3 are rotationally driven. The processing liquid that has flowed in from the inflow nozzle 7 contacts the upper surface of the brush part 5 and receives a force in the outer peripheral direction due to the centrifugal force of the brush part 5. Thereby, the processing liquid is pressed against the inner surface of the filter unit 21.

  As the filter unit 21 rotates, the centrifugal force continues to act on the processing liquid that has contacted the filter unit 21. A mesh filter 212 through which water contained in the processing liquid permeates and solid matter Sd is collected is disposed on the inner surface of the filter unit 21. When the centrifugal force acts on the processing liquid, only the water of the processing liquid passes through the mesh filter 212. And the water which passed the mesh filter 212 is discharge | released to the exterior of the filter part 21 from the drain hole 212 by centrifugal force (refer FIG. 6).

  The water discharged from the filter unit 21 is discharged (drained) to the outside through the through hole 120 and the drain pipe 26 from the portion surrounded by the water stopper cylinder 20 and the first support unit 12. In addition, the drained water removes solid matter, and if it meets the environmental standards, it is allowed to flow as it is into the sewage as it is. Moreover, adjustment of pH etc. may be required, and in that case, it is sent to another process. According to environmental standards, liquids containing solids should not be drained into sewage, even if they are harmless. In order to satisfy such environmental standards, wastewater from which solids have been removed can be allowed to flow directly into sewage.

  On the other hand, the solid matter Sd contained in the processing liquid is collected by the mesh filter 212. Since the mesh filter 212 rotates together with the filter unit 21, the water content of the solid Sd is further separated by centrifugal force. The separated water (water) is discharged to the outside of the filter unit 21 in the same manner as the steam. The solid matter Sd from which moisture is separated may fall downward, but may stick to the mesh filter 212. When a large number of solid matter Sd adhere to the mesh filter 212, the mesh filter 212 is clogged, and the ability of water separation (dehydration) is reduced.

  Therefore, in the solid-liquid separator A according to the present invention, the brush S 5 is used to scrape off the solid Sd adhering to the mesh filter 212. As shown in FIG. 5, the brush portion 5 rotates relative to the filter portion 21 by the rotation of the dewatering drainage portion 2 and the solid matter discharge portion 3. FIG. 7 shows the relative positions and operations of the mesh filter 212 and the brush 51.

  As shown in FIG. 7, the brush 51 rubs the mesh filter 212 against the mesh filter 212 at a speed corresponding to the rotational speed R3. The tip of the brush line 510 constituting the brush 51 scrapes out the solid matter Sd clogged inside the lattice of the mesh filter 212. Since the brush 51 is spirally disposed on the brush portion 5, the scraped solid Sd is pushed downward by the spiral brush 51 (see FIG. 7). Further, the large solid matter Sd collected by the mesh filter 212 protrudes to the outside of the mesh filter 212 and collides with the brush 51. At this time, the solid matter Sd is pressed downward because the solid matter Sd comes into contact with the spirally arranged brushes 51 in order.

  Then, as shown in FIG. 8, when the solid material Sd reaches the lower part of the brush portion 5, the solid material Sd cannot be scraped out by the brush 51. On the other hand, in the lower part of the filter part 21, an air flow is generated by the negative pressure of the fan part 25, and the solid matter Sd is pulled downward using this air flow. As described above, since the air flow is generated, the solid matter Sd is prevented from adhering to the inner surface of the internal space 221 of the first rotating shaft 22 and the solid matter Sd adhering to the inner surface is removed from the air. Peel off the flow. Further, the solid Sd is sent downward by air flow and gravity.

  Then, the solid matter Sd that has reached the fan unit 25 rides on the air flow generated in the fan unit 25 and is discharged to the outside in the outer peripheral direction of the fan unit 25 along the blades 251. As shown in FIG. 2 and the like, a solid collection cylinder 31 is provided outside the fan unit 25, and the solid Sd contacts the solid collection cylinder 31. At this time, since the solid matter collecting cylinder portion 31 is arranged with respect to the fan portion 25 so that the air flow generated in the fan portion 25 is directed downward, the solid matter is placed on the air flow. Sd is pushed downward. Then, the solid matter Sd pushed downward flows into a portion surrounded by the solid matter discharge cylinder portion 34 and is discharged from the through hole 101 to the outside.

  Thus, in the solid-liquid separator A, it is possible to accurately separate solids and liquid (water) from the processing liquid. Further, the mesh filter 212 of the filter unit 21 is rubbed with the brush 51 of the brush unit 5 to suppress clogging of the mesh filter 212. Thereby, the solid-liquid separator A concerning this invention can perform the process of a process liquid continuously over a long period of time.

  In the solid-liquid separator A according to the present invention, the lower portion is provided with the tapered cylindrical filter portion 21 having a small diameter, but the present invention is not limited to this. For example, an annular filter unit 21 may be provided. Moreover, in the above-mentioned embodiment, although the brush part 5 used what arranged the brush 51 in the spiral form is utilized, it is not limited to this, The solid substance Sd can be scraped off reliably. Things can be widely adopted.

  Then, when the filter unit 21 rotates with the solid matter Sd collected by the mesh filter 212, centrifugal force continues to act on the solid matter Sd. At this time, since the shape of the mesh part 21 has a tapered shape with the lower part narrowed down, the solid Sd is subjected to an upward force along the inner surface by centrifugal force. By adopting this configuration, it is possible to prevent the solid Sd from falling in a state containing a large amount of moisture and being discharged as the solid Sd. For this reason, it is preferable to use a taper-shaped filter part having a small diameter at the lower part.

  Further, during operation, the solid-liquid separator A rubs the tip of the brush line 510 of the brush 51 of the brush unit 5 with the mesh filter 212. Therefore, if the operation is continued for a long time, the brush wire 510 is worn. When the brush wire 510 is worn, the efficiency of scraping off the solid Sd of the mesh filter 212 by the brush 51 is lowered. Therefore, in the solid-liquid separator A, the fixing screw 52 is used so that the brush unit 5 can be moved in the axial direction of the second rotating shaft 32. Even after the brush wire is worn, the brush portion 5 can be moved in the axial direction of the second rotating shaft 32 so that the solid matter Sd of the mesh filter 212 can be scraped off at the tip of the brush wire 510. It has become. The position of the brush portion 5 is preferably a position where the brush 51 can scrape off the solid matter Sd collected by the mesh filter 212 by centrifugal force. By arranging in this way, the length of the brush wire 510 is too long and it is possible to suppress bending wrinkles, and the tip of the brush wire 510 is pressed against the mesh filter 212 by centrifugal force. The scraping efficiency of the solid Sd is improved.

  Furthermore, in the present invention, when the rotational speed R1 of the dewatering drainage section 2 and the rotational speed R2 of the solid matter collecting cylinder section 3 are the same, there is no relative speed difference, and the solid scraping by the brush 51 is sufficient. Will not be done. Further, when the difference between the rotational speed R1 and the rotational speed R2 is large, the rotational speed R3 increases. If the rotational speed R3 is too large, the friction between the tip of the brush 51 of the brush portion 5 and the mesh filter 212 increases, and the wear of the tip of the brush wire 510 becomes severe. Further, when the difference between the rotational speed R1 and the rotational speed R2 is small, the rotational speed R3 becomes small. When the rotation speed R3 is small, scraping of the solid Sd tends to be insufficient. Moreover, when the rotation speed R1 of the dewatering drainage part 2 is small, separation of the liquid of the processing liquid from the solid matter becomes insufficient. Further, when the rotational speed R3 is small, the difference in the reduction ratio of the pulley becomes too small, and the difference in the outer diameter of the pulley is difficult to be produced, which makes it difficult to manufacture.

  Considering these things, in the solid-liquid separator A of the present invention, examples of the rotation speed R1 of the dewatering drainage unit 2 include 6000 rpm to 10,000 rpm. Further, the rotational speed R3 is preferably higher than 60 rpm and not higher than 400 rpm, and more preferably not lower than 10 rpm and not higher than 60 rpm so that the solid Sd can be surely scraped off by the brush portion 5.

  In the above-described configuration, the rotational speed R1 of the dewatering drainage section 2 is higher than the rotational speed R2 of the solid matter discharge section 3, but the present invention is not limited to this. As long as the relative rotation direction of the brush unit 5 is such that the solid Sd is pushed downward, whichever may be higher.

(Second Embodiment)
In the solid-liquid separator A shown in the above-described embodiment, solid matter is collected by the mesh filter 212 and the drain hole 213 of the filter unit 21. As a water treatment apparatus using such a solid-liquid separator A, what separates the solid substance contained in the water after performing floor cleaning from water can be mentioned, for example.

  In commercial facilities, hospitals, schools, and the like, a protective agent (wax) is applied to the floor surface for reasons such as keeping the floor surface clean and suppressing scratches on the floor surface. Floor wax can protect the floor and keep it clean for a certain period of time, but after a certain amount of time, it will be partially peeled off or deteriorated, reducing its effectiveness. To do. Therefore, in order to maintain the effect of the wax, after a certain period of time, maintenance is performed in which the old wax is peeled off and new wax is applied again.

  Since the wax adheres firmly to the floor surface, the wax component is peeled off using a cleaning liquid (peeling liquid). Wax is removed from the floor by dissolving the wax component with the cleaning liquid and collecting the cleaning liquid together with the wax component. A cleaning liquid in which such a wax component is dissolved has a high viscosity but is often a liquid and cannot be drained as it is. Therefore, it is known that the viscosity of the wax component is increased and solidified by mixing a certain acidic solution in the cleaning liquid in which the wax component is dissolved. Moreover, it is possible to detoxify the cleaning liquid by mixing this acidic solution.

  It is possible to separate the wax component from the liquid by putting the cleaning liquid containing the solidified wax component into the solid-liquid separator A and performing solid-liquid separation. However, there are cases where the wax component is small or there is a lot of water (liquid) in the cleaning liquid, and the solidified substance of the wax component is not solidified and collapses with a small force. That is, since the ratio of water is high, the substance does not solidify (it tends to collapse). When trying to remove such solids that are easily broken using the solid-liquid separator A, the solids are pushed by the force of the liquid that passes through the mesh filter 212 and the drain hole 213 by centrifugal force and breaks down. Objects also pass through the mesh filter 212 and the drain hole 213. That is, it may be difficult to remove the solid matter obtained by solidifying the wax component from the cleaning liquid.

  In order to collect such solid matter that tends to collapse due to a large amount of liquid by the solid-liquid separator A according to the present invention, a pretreatment device that performs pretreatment is used in the present embodiment. FIG. 9 is a perspective view in which a part of the pretreatment device for performing the pretreatment before using the solid-liquid separator according to the present invention is cut.

  As shown in FIG. 9, the pretreatment device 8 includes a watertight container 81, a swing shaft 82, an inflow duct 83, a first outflow duct 84, a second outflow duct 85, and a filter 86. . The watertight container 81 is a box with a straight shape, and the liquid does not leak from the connection part of the inflow duct 83, the connection part of the first outflow duct 84, and the connection part of the second outflow duct 85, that is, It has a watertight structure.

  A swing shaft 82 is attached to the center of the bottom surface of the watertight container 81 in the longitudinal direction so as to extend in a direction orthogonal to the longitudinal direction. The swing shaft 82 is a shaft portion serving as a central axis when the watertight container 81 swings. Then, the watertight container 81 swings around the swinging shaft 82 and tilts so that one of the ends is on the lower side. In addition, although illustration is abbreviate | omitted, the rocking | fluctuation shaft 82 may be fixed so that it may not move to the watertight container 82, and may be attached via the bearing etc.

  The inflow duct 83 is attached to the longitudinal center of the upper surface of the watertight container 81. The inflow duct 83 communicates with the inside of the watertight container 81 and is configured to allow a liquid mixed with solid matter to flow into the watertight container 81.

  The first outflow duct 84 is formed in the vicinity of one end in the longitudinal direction of the bottom of the watertight container 81. The first outflow duct 84 has a structure having a through hole so as to connect the inside and the outside of the watertight container 81. The first outflow duct 84 is a duct for allowing a liquid containing solid matter to flow toward the inflow nozzle 7. In addition, although illustration is abbreviate | omitted, the 1st outflow duct 84 and the inflow nozzle 7 are connected by piping (pipe) through which the liquid containing a solid substance flows.

  The second outflow duct 85 is formed in the vicinity of the end portion on the other side in the longitudinal direction of the bottom of the watertight container 81 (opposite side of the first outflow duct 84). The second outflow duct 85 is a duct for discharging only liquid (water) to the outside. Although not shown, a pipe (pipe) is connected to the second outflow duct 85.

  The filter 86 is disposed inside the watertight container 81. The filter 86 is arranged so that solids can be collected from the liquid flowing in from the inflow duct 83 while reaching the second outflow duct 85. The filter 86 may have the same configuration (the same size of the lattice) as the mesh filter 212 of the filter unit 21 or may have a different configuration. A plurality of filters having different lattice sizes may be arranged side by side.

  Further, the pretreatment device 8 is provided with a drive unit (not shown), and either the first outflow duct 84 or the second outflow duct 85 is obtained by swinging the watertight container 81 around the swing shaft 82. One is below the other. Thereby, the liquid in the watertight container 81 or the liquid containing the solid material flows out from the first outflow duct 84 or the second outflow duct 85 to the outside.

  Such an operation of the preprocessor 8 will be described with reference to the drawings. 10A to 10C are cross-sectional views showing a state in which pretreatment of the solid-liquid separator is performed. As described above, when the processing liquid to be processed is such that the solid matter contained in the liquid is easily broken by the liquid, the pretreatment device 8 roughly separates the liquid and the solid matter.

  That is, as shown in FIG. 10A, the watertight container 81 is tilted so that the second outflow duct 85 is below the first outflow duct 84. In this state, the processing liquid is introduced from the inflow duct 83. At this time, the processing liquid that has flowed in flows toward the second inflow duct 85 and passes through the filter 86. At this time, a flow generated by the inclination of the watertight container 81 is generated in the processing liquid. The solid contained in the treatment liquid is pushed by the flow caused by the inclination of the watertight container 81, but the force acting on the solid is so small that it is not easily broken by the filter 86 and is collected. In addition, this solid substance is a solid substance containing a reduced amount of moisture.

  When a certain amount of solid matter is collected by the filter 86, the watertight container 81 is swung in the opposite direction and flows toward the solid matter and liquid (water) first outflow duct 84 (see FIG. 10B). Thereby, the solid matter with a small liquid content is sent from the first outflow duct 84 to the inflow nozzle 7 and flows into the solid-liquid separator A. Thereby, the solid substance with a small liquid content (water | moisture content) is thrown into the solid-liquid separator A. FIG. Even if centrifugal force acts on the solid matter in the dewatering drainage section 2, the liquid force that does not collapse the solid matter does not act, so that the solid matter can be dehydrated with high accuracy.

  In addition, some solids contained in the treatment liquid do not mix with liquid (such as gravel) and do not collapse with liquid. When performing the process which isolate | separates a solid substance from such a process liquid containing the solid substance which does not collapse by a liquid part, a preliminary process is unnecessary. In such a case, when the processing liquid is introduced from the inflow duct 83, the watertight container 81 is swung so that the first outflow duct 84 is positioned downward (see FIG. 10C).

  In this way, by operating the preprocessor 8, it is possible to suppress the clogging of the filter 86. In the present embodiment, the first outflow duct 84 and the second outflow duct 85 are formed on the bottom surface of the watertight container 81, but the present invention is not limited to this. For example, it may be formed on the wall surface of the end portion in the longitudinal direction so that the inclination angle when the watertight container 81 is swung is increased. Further, although the swing shaft 82 is attached to the bottom surface of the watertight container 81, the present invention is not limited to this, and a wide variety of swing shafts are used. Is possible. Moreover, it is not limited to the center. For example, when a large amount of liquid that needs to be pretreated is processed, a position where the second outflow duct 85 is located in a state where power is not acting can be given. Similarly, the position of the inflow duct 83 is not limited to the center. Any filter 86 may be disposed between the inflow duct 83 and the second outflow duct 85. Furthermore, the watertight container 81 is not limited to a rectangular parallelepiped shape, and may be a cylindrical shape or the like.

(Third embodiment)
When the solid and the liquid are separated using the solid-liquid separator A, the shape and size of the solid need to be collected by the mesh filter 212. That is, it may be difficult to efficiently remove the solid matter from the processing liquid in which the solid matter that cannot be collected by the mesh filter 212 is mixed. The solid-liquid separator shown in the present embodiment has a configuration that separates solids (fine solids) having a size difficult to be collected by the mesh filter 212 from the processing liquid. Below, the solid-liquid separator which can isolate | separate a fine solid substance is demonstrated with reference to drawings.

  Another example of the solid-liquid separator according to the present invention will be described with reference to the drawings. 11 is an exploded perspective view of another example of the solid-liquid separator according to the present invention, and FIG. 12 is a cross-sectional view of another example of the solid-liquid separator shown in FIG. In the solid-liquid separator B shown in FIG. The housing 1 and the drive unit 6 of the solid-liquid separator B shown in FIGS. 11 and 12 have substantially the same configuration as the solid-liquid separator A. Therefore, in the solid-liquid separator B, parts having the same configuration as the solid-liquid separator A are denoted by the same reference numerals, and detailed description of the same parts is omitted.

  The solid-liquid separator B shown in FIGS. 11 and 12 includes a solid matter collecting cylinder part 270, a cylindrical part 271, a receiving part 272, an inflow part 273, an inflow cylinder part 274, an outflow cylinder part 275, The liquid leakage suppression part 276, the 2nd driven pulley 28, and the brush part 5b are provided.

  The solid material collection cylinder part 270 has a cylindrical shape and is arranged upright on the first support part 12. The solid material collection cylinder part 270 is a member for collecting the solid material separated from the processing liquid. The method for collecting the solid material will be described later. In addition, the lower end part of the solid collection cylinder part 270 may be provided with a discharge hole for discharging the collected solid substance.

  As shown in FIGS. 11 and 12, the cylindrical portion 271 has a tapered inner surface whose upper inner diameter is smaller than the lower inner diameter. The cylindrical part 271 is fixed to the receiving part 272 in a watertight manner, and the cylindrical part 271 and the receiving part 272 form a separation container. The receiving portion 272 has a disk shape, and an inflow cylinder portion 274 is connected downward from the center portion. A through hole is formed at the center of the receiving portion 272, and the through hole communicates with the inflow cylinder portion 274. The receiving part 272 and the inflow cylinder part 274 are integrally formed. The inflow cylinder portion 274 is rotatably supported by the first support portion 12 and the holding portion 124 via bearings Br1 and Br11. The first driven pulley 24 is attached to the inflow cylinder portion 274 so that power is supplied to the first driven pulley 24. Thereby, the receiving part 272 and the inflow cylinder part 274 rotate integrally.

  In addition, an inflow portion 273 for allowing the processing liquid to flow in from the radial direction is formed in an intermediate portion of the inflow cylinder portion 274. The inflow portion 273 is configured to rotate relative to the inflow cylinder portion 274 and supply a liquid. For example, the inflow portion 273 has a known swivel structure, but is not limited thereto. An inflow nozzle 7b is connected to the inflow portion 273.

  The outflow cylinder 275 is a discharge pipe for discharging the liquid after separating the solid from the processing liquid. The outflow cylinder part 275 has a cylindrical shape having an outer diameter smaller than the inner diameter of the inflow cylinder part 274. The outflow cylinder part 275 is disposed in the inflow cylinder part 274 so that the inflow cylinder part 274 and the central axis overlap. The outflow cylinder part 275 has a second driven pulley 28 attached to the lower part thereof, and is rotatably supported by the base part 10 and the second support part 13 via bearings br3 and br2. A driving force is supplied via the second driven pulley 28. The second driven pulley 28 has the same configuration as the driven pulley 36 of the solid-liquid separator A. In addition, the outflow cylindrical portion 275 has a configuration in which a lower end portion protrudes below the base portion 10 and discharges the liquid to the outside of the solid-liquid separator B.

  The outflow cylinder part 275 is disposed inside the inflow cylinder part 274, and the processing liquid that has flowed in from the inflow part 273 flows through the space between the inner surface of the inflow cylinder part 274 and the outer surface of the outflow cylinder part 275. At this time, in order to prevent water from leaking from the lower end portion of the inflow cylinder portion 274, a liquid leakage suppression portion 276 is provided. The liquid leakage suppressing portion 276 is for suppressing liquid leakage. However, if a member such as packing is disposed between the inflow tube portion 274 and the inflow tube portion 275, the friction becomes too high. Therefore, the liquid leakage suppressing portion 276 is provided in the inflow cylinder portion 274 or the outflow cylinder portion 275, and a propeller (such as an axially upward flow is generated in the gap between the inflow cylinder portion 274 and the outflow cylinder portion 275). (Screw) shape. Accordingly, an upward flow in the axial direction is generated at the lower end portion of the inflow cylinder portion 274, and the processing liquid is prevented from flowing out from the lower end portion of the inflow cylinder portion 274.

  The upper part of the outflow cylinder part 275 is disposed inside the cylindrical part 271. And the brush part 5b is attached to the upper end part of the outflow cylinder part 275. As shown in FIG. The brush portion 5b has a truncated cone shape having the same or substantially the same taper coefficient as the inner surface of the cylindrical portion 271 and includes a plurality of brushes 51 arranged in a spiral shape on the outer peripheral portion. The brush 51 is disposed such that the tip thereof is in contact with the inner surface of the cylindrical portion 271 (rubbing the inner surface). The structure of the brush 51 is the same as that of the brush 51 used in the solid-liquid separator A.

  A liquid guide portion 53b for guiding the liquid is formed in a portion where the outer diameter of the brush portion 5b is large. The liquid introduction part 53 b communicates with a through hole 277 formed in the outflow cylinder part 275. The through-hole is a hole that penetrates from the outer surface of the outflow cylinder part 275 to the internal space, and the liquid that has flowed in from the liquid introduction part 53 b flows into the outflow cylinder part 275.

  The outflow cylinder part 275 and the brush part 5b will be described in more detail. The brush part 5b is fixed to the upper end part of the outflow cylinder part 275, and the brush part 5b also rotates as the outflow cylinder part 275 rotates. The liquid introduction part 53b of the brush part 5b is a concave groove formed in the end face on the trapezoid side. As shown in FIG. 12, the brush 51 provided at the lowermost portion of the brush portion 5 b is provided below the lower end portion of the through hole 277. Further, the upper end portion of the brush portion 5 b protrudes above the opening at the upper end of the cylindrical portion 271, and the brush 51 provided at the uppermost portion reaches the upper end portion of the cylindrical portion 271.

  In the solid-liquid separator B configured as described above, the cylindrical portion 271, the receiving portion 272, and the inflow cylindrical portion 274 rotate integrally by transmitting power through the first driven pulley 24. In addition, when the power is transmitted through the second driven pulley 28, the outflow cylinder portion 275 and the brush portion 5b rotate integrally.

  The operation of the solid-liquid separator B will be described. The processing liquid flowing in from the inflow nozzle 7 b flows into the space surrounded by the inflow cylinder part 274 and the outflow cylinder part 275 via the inflow part 273. At this time, a liquid leakage suppressing portion 276 is provided in the lower portion of the space between the inflow cylinder portion 274 and the outflow cylinder portion 275, and an upward flow is generated. Therefore, the processing liquid that has flowed in from the inflow portion 273 rises and flows into the separation container surrounded by the cylindrical portion 271 and the receiving portion 272.

  The separation container is rotating, and the processing liquid also generates a circumferential flow in the separation container due to the rotational force. Thereby, a centrifugal force is generated in the processing liquid in the separation container. Further, the processing liquid flows in at a constant pressure (a constant flow rate) from the inflow nozzle 7b, and the processing liquid is pushed upward in the separation container. In the rotating separation vessel, an upward spiral flow is generated. Since the cylindrical portion 271 is formed so as to become narrower upward with a constant flow rate, the flow rate of the processing liquid increases toward the upstream, and the centrifugal force increases toward the upper portion of the separation container (cylindrical portion 271).

  When the solid in the processing liquid is separated by centrifugal force, the centrifugal force required for separation varies depending on the difference in specific gravity between the liquid and the solid. That is, as the specific gravity of the solid matter is larger than the specific gravity of the liquid, the solid matter can be separated even with a small centrifugal force. Conversely, when there is little difference between the specific gravity of the solid and the specific gravity of the liquid, a large centrifugal force is required. In the spiral flow flowing in the separation container, since the centrifugal force increases toward the upper part, even solid matter that cannot be separated at the lower part of the cylindrical part 271 can be separated at the upper part where the centrifugal force increases.

  Then, the solid matter separated from the liquid is pressed against the inner surface of the cylindrical portion 271. Since the processing liquid flows spirally upward on the inner surface of the cylindrical portion 271, the pressed solid material moves spirally upward on the inner surface of the cylindrical portion 271.

  If the solid components (specific gravity, size, etc.) contained in the treatment liquid are known, it is possible to determine the centrifugal force required to separate the solids. When performing the solid-liquid separation processing of the processing liquid, a cylindrical portion 271 having a shape capable of generating a necessary centrifugal force may be used. As a method of using such a cylindrical portion 271, a plurality of types of cylindrical portions 271 may be prepared so that they can be replaced according to the processing liquid, or the cylindrical portion 271 corresponding to the processing liquid is attached in advance. May be.

  When the swirling flow of the processing liquid reaches the height of the through hole 277 of the outflow cylinder 275, the liquid from which the solid matter has been removed flows into the outflow cylinder 275 and is discharged to the outside. At this time, the separated solid matter remains (attaches) near the water surface on the inner surface of the cylindrical portion 271. In this way, it is possible to discharge only the liquid from which the solid matter is removed from the processing liquid.

  In the solid-liquid separator B, like the solid-liquid separator A, there is a difference in the rotational speed between the cylindrical portion 271 and the brush portion 5b. Therefore, in the operating state, the tip of the brush 51 relatively rubs the inner surface of the cylindrical portion 271. And since the brush 51 of the brush part 5b is arrange | positioned spirally, when the brush 51 rubs against the inner surface of the cylindrical part 271, the solid substance adhering to the inner surface of the cylindrical part 271 is moved to an axial direction. It is possible to make it. In the solid-liquid separator B, the rotation speeds of the cylindrical portion 271 and the brush portion 5b are set so that the solid matter moves upward.

  Since the brush 51 is arranged so that the brush 5b reaches the opening at the upper end portion of the cylindrical portion 271, the solid matter attached to the inner surface of the cylindrical portion 271 by the brush 5b is removed from the cylindrical portion 271. Pushed to the upper end. While the solid matter is attached to the inner surface of the cylindrical portion 271, centrifugal force always acts, and the centrifugal force and the drag force of the cylindrical portion 271 are balanced. When the solid matter moves upward from the upper end portion of the cylindrical portion 271, the drag of the cylindrical portion 271 acting on the solid matter is lost, and the solid matter is struck against the inner surface of the solid matter collecting cylindrical portion 270 by centrifugal force. Collected by the cylinder part 270.

  As described above, the solid-liquid separator B uses the tapered cylindrical portion 271 whose upper portion is narrowed to generate a swirling flow, increase centrifugal force, and fine solids in the processing liquid. And liquid can be separated. Further, by providing the through-hole 277 formed in the outflow cylindrical portion 275 at a position lower than the upper end portion of the cylindrical portion 271, the liquid level of the separation container can be set as the lower portion of the upper end of the cylindrical portion 271. it can. Further, since the solid matter is discharged by using the brush portion 5b, it is possible to prevent the solid matter from being deposited near the liquid surface of the separation container, and therefore it is possible to perform continuous solid-liquid separation.

  In this embodiment, water and solids are separated. However, the present invention is not limited to this, and the present invention is also used for an apparatus that separates solids mixed inside from liquids other than water. It is possible.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to this content. The embodiments of the present invention can be variously modified without departing from the spirit of the invention.

DESCRIPTION OF SYMBOLS 1 Case 10 Base 101 Through-hole 11 Support wall part 111 Long hole 12 1st support part 120 Through-hole 121 Adjustment screw 122 Nut 13 2nd support part 14 Cover holding part 15 Fixing screw 16 Fixing screw 2 Dehydration drainage part 21 Filter part 210 Internal space 211 Cylindrical body 212 Mesh filter 213 Drain hole 22 First rotation shaft 221 Internal space 23 Flange 24 First driven pulley 25 Fan part 251 Blade 26 Drain pipe 3 Solid matter discharge part 31 Solids collection cylinder part 311 Notch 32 2nd rotating shaft 33 Flange 34 Solid matter discharge cylinder part 341 Notch 35 Flange 36 2nd driven pulley 4 Cover body 41 Holding cylinder part 5 Brush part 50 Recessed part 51 Brush 510 Brush line 52 Fixing screw 6 Drive part 61 1st drive Pulley 62 Second drive pulley 63 Drive shaft 7 Inflow nozzles br1 to br7 Bearing

Claims (10)

A solid-liquid separator that separates a processing liquid mixed with a solid into liquid and solid by centrifugal force,
A cylindrical separation container that separates the solid and the liquid by centrifugal force during rotation;
A brush part which is arranged so that a central axis overlaps the separation container inside the separation container and rotates in the same direction as the separation container;
A drive unit that rotationally drives the separation container and the brush unit;
The brush portion includes a brush provided to rub the inner surface of the separation container,
The solid-liquid separator is characterized in that the brush part rotates relative to the separation container by changing the number of rotations of the separation container and the number of rotations of the brush part. The brushes of the brush part are arranged in a spiral shape,
The relative rotation direction of the brush part with respect to the separation container is such that the spirally arranged brushes push in the direction in which the solid matter is discharged, and the rotation of the brush part. The solid-liquid separator according to claim 1, wherein the direction and the number of rotations are determined.   The solid-liquid separator according to claim 1, wherein the separation container includes a filter portion in which a filter through which the liquid passes and the solid matter is collected is formed in a cylindrical shape.   The solid-liquid separator according to claim 3, wherein a negative pressure generating unit that generates a negative pressure and sucks the solid matter is connected to a tip of the filter unit on a side where the solid matter is discharged. The filter part is erected so that the central axis rises, and at least a part of the peripheral wall is formed in a tapered shape having a smaller diameter downward.
The solid-liquid separator according to claim 3 or 4, wherein the brush pushes the solid material downward. The separation container has a narrow upper part and an opening in the upper part,
A cylindrical inflow cylinder extending downward from the lower end surface of the separation container and communicating with the interior of the separation container;
An outflow tube portion arranged so that the central axis coincides with the inside of the inflow tube portion and is not in contact with the inflow tube portion;
The inflow cylinder portion includes an inflow portion for press-fitting the processing liquid,
The outflow tube portion penetrates from the outer surface to the inner surface at the top, and a through hole for draining the water in the separation container to the outflow tube portion is formed,
The brush portion is fixed to the upper end portion of the outflow cylinder portion,
The brush is arranged to send solids upward by rotation of the brush part,
The solid-liquid separator according to claim 2, wherein an upper end of the brush array reaches the opening of the separation container, and a lower end of the brush array reaches a lower side than a lower end of the through hole. .   The solid-liquid separator according to claim 6, wherein the brush part is formed with a liquid introduction part for guiding a liquid to the penetrating part. The brush portion is arranged so as to be movable in the axial direction with respect to the separation container,
The solid-liquid separator according to any one of claims 1 to 7, wherein the brush portion is disposed at a position where a tip of the brush is pressed against an inner surface of the separation container by centrifugal force. A first driven pulley that rotates integrally with the separation container;
A second driven pulley that rotates integrally with the brush portion;
A first drive pulley provided in the drive unit and connected to the first driven pulley by a belt;
A second driving pulley provided in the driving unit and connected to the second driven pulley by a belt;
A drive shaft provided so that center axes of the first drive pulley and the second drive pulley coincide with each other;
The fixed ratio according to any one of claims 1 to 8, wherein the ratio of the first driven pulley and the first drive pulley and the ratio of the second driven pulley and the second drive pulley are different. Liquid separator.   The solid-liquid separator according to any one of claims 1 to 9, wherein a difference between a rotation speed of the separation container and a rotation speed of the brush portion is set to 10 rpm or more and 400 rpm or less.

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