JP2007136375A - Method and apparatus for separation of solid - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and an apparatus for separation of a solid which achieve a high separation efficiency with energy saved, require less labor and are compact and economical. <P>SOLUTION: The solid separating apparatus 1 is so constructed as to efficiently collide/flocculate fine solid particles in a to-be-treated fluid with each other, and be settled. The apparatus 1 is separately constituted by a cylindrical swinging separation vessel 2 having two or more built-in cap-shaped cylinders 221, 222 and 223 applying a strong centrifugal force to fine solid particles 7 for flocculation/accumulation, and a settlement separation vessel 3 for settling and separating the flocculated fine solid particles 7. The swinging separation vessel 2 and the settlement separation vessel 3 are connected with each other through a pair of spraying pipes 41 and 43 spraying the to-be-treated fluid 6 and a single clear fluid rising pipe 5 in which the clear fluid 61 of the to-be-treated fluid 6 passes through the central part of the swinging separation vessel 2 and is discharged outside. The apparatus 1 and a fluid storage mechanism 9 are connected with pipes or the like to form a loop. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to solid fine particles and sludge that are contained in liquids such as circulating cooling water such as cooling towers, polishing machines, and grinding machines, booth washing water and waste water / sewage of coating lines, or factory waste gas, The present invention relates to a cyclone-type solid separation method and separation apparatus for separating solid fine particles, which are dust such as incinerator waste gas, with high efficiency and economically.

  Conventional methods for removing solid fine particles contained in liquids as impurities include filters using filter media, centrifuges using centrifugal force, liquid cyclones, etc., and in waste gas There are bug filters, electric dust collectors, etc. for the contained dust. However, in particular, since cooling water, cutting oil, washing water, etc. can be used repeatedly, these liquids are often stored in an appropriate amount in a tank and circulated, and impurities contained in the liquid in this case A method of simply filtering and removing with a filter such as a strainer installed in a filter, a filtration device using a furnace material (for example, refer to Patent Document 1 and Patent Document 2), and a device using sand filtration and chemical treatment (for example, Patent Document 3 and Patent Document 4).

JP 2002-331207 A Japanese Patent Laid-Open No. 2003-181219 Japanese Patent Laid-Open No. 11-128953 JP 2002-1392 A

  The conventional methods for removing impurities using a simple filter as described above may cause clogging, which requires time and labor such as periodic replacement and cleaning of the filter and cleaning of impurities accumulated at the bottom of the tank. It was very uneconomical due to the replacement and release of washing water. In addition, in the filtration apparatus using the filter medium, the labor and enormous cost are similarly required for cleaning and replacement of the filter medium.

The present invention provides a high-efficiency separation apparatus that solves the problems of the conventional method and realizes resource saving and energy saving that have been particularly demanded in recent years. That is, by using an unprecedented special structure swivel separator, high separation efficiency can be obtained with energy saving and hassle-free, and it is a compact and economical impurity that can be applied not only to liquids but also to gases such as exhaust gases. It is an object of the present invention to provide a separation method and a solid separation device.

  The present invention was obtained as a result of diligent research based on many years of experience in the development and design of filtration / separation devices. In order to achieve the above object, first, a fluid to be treated (hereinafter referred to as liquid or It is necessary to efficiently collide and agglomerate solid particulates that are impurities in the gas (collectively referred to as fluid), and secondly, it is necessary to quickly settle the aggregated and condensed solid particulates. Thirdly, it is necessary to further separate and capture a very small amount of solid fine particles contained in the fluid, and fourth, to be treated so as to correspond to the production rate and deposition rate of solid fine particles which become impurities. This is made by paying attention to the necessity of steadily separating and removing solid fine particles from a fluid as appropriate.

  Specifically, the first aspect of the first invention relating to the solid separation method is that the fluid to be treated is an ultra-high-speed swirling flow without significantly increasing pressure loss, and is strong against solid fine particles contained in the fluid. Applying centrifugal force to collide and agglomerate, move and accumulate the solid fine particles in the outer direction, and further swivel the inner inclined surfaces of multiple inverted frustoconical cylinders (hereinafter referred to as cup-shaped cylinders) gently To lower.

  The second aspect of the first invention related to the solid separation method is that the fluid containing the solid particles aggregated and accumulated in a fluid that is stationary or gently flowing so that the solid particles settle quickly. Injecting at a speed.

In the third aspect of the first invention related to the solid separation method, the fluid separated from the solid particulates overflows and passes again through the plurality of cup-shaped cylinders to counter flow with the fluid to be treated. It is also a specific matter to make it a clarified fluid while it is in contact, and to discharge the overflow.

The fourth aspect of the first invention relating to the solid separation method is that the small amount of fluid to be treated is continuously sucked and pumped from a large amount of the fluid to be treated, and only the solid fine particles are separated and removed. Has a specific matter of continuously performing a series of operations of returning to the original fluid to be treated as a cycle.

  A first aspect of the second invention related to the solid separation apparatus for carrying out the first invention is that the solid separation apparatus agglomerates the solid fine particles by applying a strong centrifugal force to the solid fine particles. It is separated into a cylindrical swirl separation tank that accumulates and a settling separation tank that settles and separates the agglomerated solid fine particles, and the swirl separation tank and the settling separation layer are processed fluids that have exited the swirl separation tank. It is connected by a pair of injection pipes arranged so as to be sprayed to the upper layer part of the sedimentation separation layer, and the fluid to be treated overflows from the sedimentation tank through the center of the swirl separation tank A specific matter is that the settling separation tank and the swirl separation tank are connected by a single clarified fluid ascending pipe so as to be discharged as a liquid.

The second aspect of the second invention relating to the solid separation apparatus for carrying out the first aspect of the invention is that the high-speed swirling means is located in the upper part of the swirl separation tank and the central part to the lower part are aggregated by centrifugal force. It is a specific matter that the concentration and collection means for concentrating and accumulating the collected solid fine particles gently descends, and that a connection port for connection to the settling separation tank is provided at the lower part. .

The third aspect of the second invention related to the solid separation apparatus for carrying out the first invention is to allow the clarified fluid of the fluid to be treated to overflow and be discharged at the center of the top of the high-speed swirling means. The fluid discharge pipe is disposed with an appropriate length so as to be parallel and upward with the swirl separation tank, and so that the outer cylinder of the swirl separation tank and the fluid discharge pipe form a double pipe. And an inflow pipe of the fluid to be treated with respect to the swirl separation tank so that the introduced fluid to be treated is jetted at a high speed on the outer peripheral portion of the fluid discharge pipe to form a high-speed swirling flow. The jet outlet of this inflow pipe is close to the wall surface side of the swirl separation tank and is reduced in cross section to a vertical rectangle. To do.

According to a fourth aspect of the second invention relating to the solid separation apparatus for carrying out the first invention, the concentration and accumulation means includes a fluid to be treated containing solid fine particles centrifugally aggregated by the high-speed swirling means, A plurality of cup-shaped cylinders having a wide opening having an appropriate size and a narrow opening having an appropriate size serving as a flow path for the overflow liquid of the processing fluid are disposed at predetermined intervals in the height direction. The cup-shaped cylindrical body has the same wide diameter as the inner diameter of the cylindrical swivel separation tank, and the outer peripheral surface of each wide-mouthed cup-shaped tubular body has the cylindrical swivel separation. A specific matter is that the tank is welded and fixed to the inner peripheral surface of the tank at a predetermined interval.

The fifth aspect of the second invention relating to the solid separation apparatus for carrying out the first invention is that the pair of injection pipes are the uppermost or second cup-shaped cylindrical body of the concentration and accumulation means. In the vicinity of the narrow opening of the swirl separation tank and perpendicular to the cylindrical side surface of the swirl separation tank and facing in the opposite direction, and the center of the injection pipe is appropriately shifted in the horizontal direction. And that each injection pipe is curved in the middle and connected to the upper part of the settling separation tank.

The sixth aspect of the second invention relating to the solid separation apparatus for carrying out the first invention is that the sedimentation separation tank has a larger volume than the swirl separation tank, and the aggregated solid fine particles are A tank having a vertically long structure sufficient for sedimentation separation, and two inlets connecting the pair of injection pipes to the upper outer peripheral portion of the sedimentation separation tank, and the upper central portion of the sedimentation separation tank at the upper central portion. One discharge port connected to a connection port installed in the lower part of the swirl separation tank is provided, and the lower part of the settling separation tank temporarily stores an appropriate amount of the settled and separated solid fine particles. It is a specific matter that a conical tank and a sludge discharge valve for appropriately discharging the settled and separated solid fine particles are provided.

A seventh aspect of the second invention related to the solid separation apparatus for carrying out the first invention is that the solid separation device and the fluid storage means for the fluid to be treated are partly suitable for the fluid to be treated. The fluid pumping means for sucking and pumping the amount of the fluid from the fluid storage means is connected to the flow rate adjusting valve and the inflow pipe, and the clarified fluid exiting the solid separator is returned to the fluid storage means. The clarified fluid return pipe and the fluid discharge pipe are connected to each other, and both the solid separation device and the fluid storage means are arranged to form a loop with the fluid pressure feeding means and pipes. Is a specific matter.

As described above, according to the first invention relating to the solid separation method and the second invention relating to the solid separation apparatus, high separation efficiency can be obtained with energy saving, and there is no need for trouble such as filter replacement. It is possible to provide a solid separation device that is economical and applicable to many fluids.

  Specifically, when the fluid to be treated is pumped to the high-speed swirling means of the swirling separation tank with a pump or the like, the inflow port is reduced to a vertical rectangular section, so that a super-high-speed swirling flow in the form of a plate is generated. A strong centrifugal force acts on the solid fine particles that occur around the fluid discharge pipe at the top of the swirl separation tank and are contained in the fluid to be treated. Then, since the solid microparticles repeatedly collide and agglomerate, most of the particles are captured and enlarged, move outward, and accumulate on the inner wall surface of the swirl separation tank, resulting in a high capture rate. The agglomerated and accumulated solid fine particles flow down together with the fluid to be treated. First, the inner fine slope of the uppermost cup-shaped cylinder is lowered. Here, the agglomerated and accumulated solid fine particles descend while rotating along the circumferential direction of the slope, and since the flow path gradually narrows, they are further accumulated and jump out of the narrow port together with the fluid to be treated. At this time, since the centrifugal force acts on the accumulated solid fine particles, most of the solid fine particles are carried outwardly and sent to the pair of right and left injection pipes together with the fluid to be processed. And vigorously injected into the upper fluid of a sedimentation tank disposed below. The solid fine particles injected into the sedimentation separation tank together with the fluid to be treated are accumulated and enlarged, and since a high initial velocity is obtained by the injection, the inertial force quickly settles in the fluid in the sedimentation separation tank. Therefore, the separation time is shortened and the size can be reduced, and a compact sedimentation tank can be used.

In addition, the solid fine particles that have not been fed into the pair of left and right injection pipes reach the second and third cup-shaped cylinders while turning, and behave and agglomerate and accumulate in the same manner as in the uppermost stage. Is repeatedly enlarged and settled in the clarified fluid ascending pipe and enters the lower sedimentation tank, where the sedimentation is further separated, so that the capture rate is further increased and high separation efficiency is exhibited.

In addition, the clear fluid to be treated, which is sprayed into the sedimentation separation tank and separated from the solid particulates, slowly moves toward the discharge port disposed in the upper central part of the sedimentation separation tank, Through the connected clarified fluid ascending pipe, it overflows into the bottom of the swirl separation tank and passes through a plurality of cup-shaped cylinders sequentially from the bottom. Because of the counter-current contact, the trace amount of solid fine particles remaining in the clarified liquid is trapped by the aggregated and accumulated solid fine particles, so that the separation efficiency is further increased.

  In addition, solid fine particles such as impurities are generated or mixed little by little over time in a large amount of fluid to be treated, but a small amount of fluid to be treated is absorbed from a large amount of fluid to be treated. By continuously performing the operation of separating and removing a small amount of solid particles contained in the solid particles, the solid particles are always separated and discharged from the fluid to be treated at a removal rate slightly higher than the deposition rate. The fluid to be treated is always kept clear at a small expense.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a front view of a solid separation apparatus according to an embodiment of the present invention. 1 is a solid separation apparatus according to an embodiment of the present invention, 2 is a swirl separation tank, 21 is swirl separation means, and 211 is swirl separation. A fluid discharge pipe for a clarified fluid that reaches a desired depth of the tank, 211a is a fluid suction port of the fluid discharge pipe 211, 212 is an inlet pipe for the fluid to be treated, 22 is a concentration and collection means, 221, 222 and 223 are heights It is a cup-shaped cylinder arranged at predetermined intervals in the direction. 3 is a sedimentation separation tank, 31 is a conical tank, 32 is a sludge discharge valve, 41 and 42 are a pair of left and right injection pipes, 5 is a clarification fluid ascending pipe, and the connection port 23 of the concentration and accumulation means 22 and the sedimentation separation tank 3 Connected to the outlet 35. Reference numerals 33 and 34 denote introduction ports for connecting the pair of left and right injection pipes 41 and 42 to the sedimentation tank 3. 6 is a fluid to be treated, 6a and 6b are fluids to be treated containing a lot of aggregated solid particles, 61 is a clarification fluid, and 62 is a sludge containing separated solid particles.

FIG. 2 is a side view of the solid separation device 1 according to the embodiment of the present invention, and the positions of the inflow pipe 212 for the fluid to be processed and the pair of left and right injection pipes 42 disposed in the swirl separation tank 2. It explains the relationship. Reference numeral 213 denotes a jet outlet of the inflow pipe 212 for the fluid to be treated, which indicates that the arrangement position is from the wall surface of the swirl separation tank 2 and that the cross-sectional shape is reduced to a vertical rectangle. It is a thing.

FIG. 3 is a schematic diagram of the concentration and accumulation means 2 that is a component of the solid separation device 1 according to the embodiment of the present invention, and shows the behavior of the fluid to be treated in the concentration and accumulation means 22 and the solid fine particles contained therein. It is shown. 6 is a fluid to be treated, 7 is a solid particulate contained in the fluid to be treated, 71 is an aggregate of solid particulates, 72 is a concentrated aggregate of solid particulates, 221a, 221b and 222a, 222b are cup-shaped cylinders 221 and 222, respectively. 221c and 222c show the cylindrical slopes of the cup-shaped cylinders 221 and 222.

Example 1
Hereinafter, the separation process steps and effects in the solid separation apparatus of the present invention will be described with reference to FIG.

The fluid 6 to be treated, which contains a large amount of solid particulates 7 having a specific gravity greater than that of the fluid 6 to be treated, is sent to the swirl separation means 21 disposed on the upper part of the swirl separation tank 2 through the inflow pipe 212 by a pumping means such as a pump. It is done. In this case, since the cross section of the jet outlet 213 of the inflow pipe 212 is reduced to a rectangular shape in the vertical direction toward the wall tangential direction of the swirl separation tank 2, the fluid 6 to be treated is jetted at high speed in the wall tangential direction. It becomes a high-speed swirling flow that moves circularly around the discharge pipe 211 of the clarified fluid. Then, a strong centrifugal force acts on the solid fine particles 7 included in the fluid 6 to be treated, and the solid fine particles 7 move and agglomerate in the direction of the wall surface of the swirl separation tank 2 while repeatedly colliding with each other. The agglomerates 71 of the solid fine particles 7 gradually become larger and begin to descend, and accumulate on the cylindrical slope 221c of the cup-shaped cylindrical body 221 through the wide mouth 221a of the uppermost cup-shaped cylindrical body 221, thereby concentrating the solid fine particles. The integrated layer 72 is formed. This concentrated and accumulated layer 72 also gradually increases and gradually falls down on the cylindrical inclined surface 221c with its weight and falls from the narrow opening 221b of the cup-shaped cylindrical body 221. The constituting aggregate 71 is carried outwardly on the swirling flow of the descending fluid 6 to be treated, and becomes fluids 6a and 6b to be treated in the vicinity of the narrow port 221b of the uppermost cup-shaped cylinder 221. It flows into a pair of left and right injection pipes 41 and 42 arranged.

By doing so, most of the solid fine particle aggregates 71 are vigorously sent through the injection pipes 41 and 42 to the sedimentation / separation tank 3 disposed in the lower part, and quickly settle and separate. Aggregates 71 of some of the solid fine particles that could not reach 41 and 42 accumulated again on the inclined surface 222c through the wide mouth 222a of the second-stage cup-shaped cylindrical body 222, and gradually increased in size. It falls and falls from the narrow port 222b and accumulates in the third cup-shaped cylindrical body 223 in the same manner, and settles in the narrow port and the clarified fluid ascending pipe 5 and enters the lower settling separation tank 3 and gravity. It sinks by.

  For these reasons, the solid fine particles 7 in the fluid 6 to be treated are surely captured and quickly settled and separated, and a high separation efficiency can be obtained. At the same time, the separation tank can be miniaturized and the entire apparatus is compact. Become.

  In FIG. 3, the suction port 211a of the fluid discharge pipe 211 is disposed above the uppermost cup-shaped cylinder 221. The suction port 211a is positioned at the second-stage cup-shaped cylinder. 222 or may be disposed above or below the third-stage cup-shaped cylinder 223, and the position of the suction port 221a is determined experimentally depending on the properties of the solid fine particles contained in the fluid to be treated. It is what

Example 2
Next, processing steps in the solid separation system using the solid separation device of the present invention will be described.

In general, cooling systems using cooling towers include scales, earth and sand, dust, and algae, which are insoluble oxides that are formed by the concentration of minerals in the water and rust of piping materials, etc., through the long-term use of cooling water. Concentrates and accumulates as impurities. These impurities accumulate on the heat transfer surface of the cooling tower filler and the heat exchanger of the equipment and cause problems such as a significant decrease in cooling function, or accumulation on the inner wall of the piping system, causing clogging. For this reason, at least once a month, cleaning of the surface of the filler and the cooling water tank, removal of foreign matter, and cleaning of the piping system were inevitable, and depending on the situation, it was necessary to replace the cooling water.

  FIG. 4 shows an embodiment of a solid separation system using the solid separation device of the present invention, wherein 1 is a solid separation device of the present invention, 6 is a fluid to be treated, 61 is a clarified fluid, and 62 is solid fine particles. Sludge containing, 8 is a cooling tower that cools hot water with air, 81 is a filler, 82 is a water replenishing means, 9 is a cooling water tank of a cooling tower that serves as a fluid storage means for the treated fluid, and 91 is a cooling that is a treated fluid Water, 92 is a solid particulate suspended and deposited in cooling water, 10 is a water pump that is a fluid pumping means, 93 is hot water, 101 is cooling water 91 is supplied to the factory or building facility as cooling water 102 is a supply pipe for supplying a part of the cooling water 91 to the solid separation device 1 as a fluid 6 to be treated, 102a is a flow rate adjusting valve, 103 is a clarified fluid 61 that has exited the solid separation device 1 Return pipe to return to cooling water tank 9 104 is a back-side transport pipe for returning the hot water 93 that has been heat exchanged in property factory or building in cooling tower 8.

Conventionally, suspended solids in the cooling water tank 9 of the cooling tower 8 and solid particulates 92 deposited and deposited on the bottom are carried out of the cooling water tank 9 together with the cooling water 91 by the water pump 10 and the supply-side transport pipe 101. After being sent to a cooling facility such as a factory, it is supplied to the top of the cooling tower 8 through the return side transport pipe 104 while being contained in the hot water 93, and then flows down the surface of the filler 81 together with the hot water. Then, it was cooled and stayed in the cooling water tank 9 again. However, a supply pipe 102 branched in the middle of the supply-side transport pipe 101 and a flow rate adjusting valve 102a are provided so that a suitable amount of a part of the cooling water 91 is supplied to the solid separation device 1 as the fluid 6 to be treated. To.

Then, the solid fine particles 92 as impurities are separated from the fluid 6 to be treated by the action of the above-described solid separation device 1 of the present invention to become sludge 62 and discharged out of the cooling system. The clarified fluid 61 of the to-be-processed fluid 6 from which 92 has been removed is returned to the cooling water tank 9 through the return pipe 103 and circulated and used again as cooling water.

  During operation of the water pump 10, if the valve 102 a is always set to an appropriate opening so that an appropriate amount of the fluid 6 to be processed is supplied to the solid separation device 1, the object to be processed that is pressure-fed through the supply pipe 102. Impurities 92 contained in the fluid are removed in small amounts, becoming sludge 62 and discharged out of the system.

By continuously performing this series of operations as a cycle, the solid fine particles contained in the cooling water and the solid fine particles deposited in the cooling water tank 9 are gradually removed and discharged. Fine particles are removed and discharged. Further, since the newly generated solid fine particles 92 are also promptly separated and removed by the solid separation device 1, it is possible to always obtain clear cooling water that does not contain impurities.

  Next, the effect when the solid separation apparatus 1 of the present invention is installed in the cooling tower 8 having the capacity of 200 refrigeration tons will be specifically described with reference to FIG. The cooling water 91 of the cooling tower 8 is continuously supplied to air conditioning facilities and water-cooled compressors in the factory for 24 hours, and impurities 92 such as scale and sand are accumulated in the filler 81 and the tank 9. Until now, cleaning has been done once or twice a month. However, when the solid separation device 1 of the present invention is installed together with the supply pipe 102 and the valve 102a and a part of the cooling water 91 is circulated, the sediment deposited on the bottom of the tank 9 gradually from immediately after the installation. Several days later, the cooling water became completely clear after the solid fine particles 92 disappeared. After four months, the filling material 81 and the tank 9 do not have to be cleaned at all.

Example 3
Next, another embodiment of the solid separation system using the solid separation device of the present invention will be described.

FIG. 5 shows an embodiment of another solid separation system using the solid separation device of the present invention. 1 is a solid separation device of the present invention, 6 is a fluid to be treated, 61 is a clarified fluid, and 62 is a separation fluid. 9 is a fluid storage means such as a tank, 92 is a solid particulate floating or deposited on the bottom of the storage means 9, 10 is a pump that is a fluid pumping means, and 101 is a stored fluid. A supply-side transport pipe that supplies the used equipment, 102 is a supply pipe for the fluid 6 to be processed, 103 is a return pipe for the clarified fluid 61, and 104 is a return-side transport pipe for the used fluid.

  Generally, fluids such as cooling water and cleaning water are repeatedly circulated in machine equipment such as machine tools, cutting machines, precision polishing machines, and cleaning booths. The fluid storage means 9 of FIG. 5 shows a storage tank in this case. When the fluid 6 to be treated in the fluid storage means 9 is repeatedly circulated and used, cutting waste, polishing waste, and cleaning generated in mechanical equipment are shown. Solid fine particles such as debris become impurities and enter the fluid, and gradually accumulate in the fluid storage means 9 through the return-side transport pipe 104. Then, since the amount of these impurities mixed in the fluid 6 to be treated increases, if it is supplied to the mechanical equipment through the supply-side transport pipe 1101, the mechanical performance, product quality, and the like are impaired.

Therefore, a small amount of the fluid 6 to be treated including the solid fine particles 92 that are impurities is supplied to the solid separation device 1 of the present invention as appropriate for a predetermined time by the fluid pumping means 10 and the supply pipe 102 for the fluid to be treated. Then, the supplied solid fine particles 92 are separated and removed as sludge 62 from the system, and only the clarified fluid 61 is returned to the fluid storage means 9 through the return pipe 103. Thus, the fluid 6 to be treated can be maintained as a clear fluid containing no impurities. This eliminates the need for periodic cleaning in the fluid storage means 9 and replacement and disposal of the fluid, which is very economical.

  Further, the fluid storage means 9 is not limited to the production facilities of the factory and the tanks attached to the building, but to the sedimentation tanks / tanks of wastewater / waste gas treatment facilities, ponds, lakes, rivers, etc. In any case, the idea is the same as that of the above embodiment. Further, the cooling tower 8 may be another facility, and the solid separation device of the present invention is not an apparatus fixed to the fluid storage means 9 and the cooling tower 8, but as required. It goes without saying that the vehicle may be configured to be portable so that it can be moved and processed.

It is explanatory drawing which shows the front view of the solid-separation apparatus concerning embodiment of this invention. FIG. 2 is an explanatory view showing a side view of FIG. 1 for a solid separator according to an embodiment of the present invention. FIG. 2 is a schematic diagram of a concentration and accumulation unit that constitutes the solid separator FIG. 1 according to the embodiment of the present invention. It is explanatory drawing which shows the solid separation system using the solid separation apparatus concerning embodiment of this invention. It is explanatory drawing which shows the other solid separation system using the solid separation apparatus concerning embodiment of this invention.

Explanation of symbols

1 Solid separation device 2 Swirl separation tank
21 Rotation separation means
22 Concentration and accumulation means
211 Fluid discharge pipe
211a Fluid inlet
212 Inflow pipe
213 Fluid outlet
221, 222, 223 Cup-shaped cylinder 3 Settling separation tank
41, 42 A pair of injection pipes 5 Fluid rising pipe 6 Fluid to be treated
6a, 6b Fluid to be treated containing agglomerated solid particles
61 Kiyosumi fluid
62 Sludge 7 Solid fine particles
71 Aggregates of solid particles
72 Concentrated accumulation layer of solid particulates 8 Cooling tower 9 Fluid storage means
91 Cooling water
92 Solid particles such as impurities
10 Fluid pressure feeding means
101 Supply-side transport pipe
102 Supply pipe
102a Flow control valve
103 Return pipe

Claims (7)

In a cyclone-type solid separation method that separates the solid particulates by treating the fluid to be treated containing solid particulates such as impurities as an ultra-high-speed swirling flow, a strong centrifugal force acts on the solid particulates contained in the fluid to be treated. The solid fine particles collide and agglomerate with each other, and further, the solid fine particles are agglomerated and accumulated while gently swirling and descending the inclined surfaces inside a plurality of inverted frustoconical cylinders (hereinafter referred to as cup-shaped cylinders). The treated fluid containing the aggregated and accumulated solid fine particles is injected into a static or gently flowing fluid to settle and separate the solid fine particles, and then only the clarified fluid of the treated fluid is obtained. A method for separating a solid, wherein the fluid to be treated and the plurality of cup-shaped cylinders are passed in countercurrent contact with each other and discharged. The solid separation method according to claim 1, wherein the fluid to be treated is a small amount of fluid to be treated sucked from a large amount of fluid to be treated, and only the solid fine particles are separated and removed from the fluid to be treated. A solid separation method characterized by continuously performing a series of operations in which the clarified fluid is returned to the original large amount of the fluid to be treated: suction pumping-aggregation / sedimentation / separation-returning as a cycle. A cyclone-type solid separation device, wherein the solid separation device is separated into a cylindrical swirl separation tank for aggregating and accumulating solid fine particles in a fluid to be treated, and a sedimentation separation tank for the solid fine particles. The swirl separation tank and the sedimentation separation layer include a pair of injection pipes disposed so that the fluid to be treated that exits the swirl separation tank is sprayed to the sedimentation separation layer, and the clarified fluid is the sedimentation separation tank. The solid separation device is connected by a single ascending pipe so as to be discharged to the outside through the center of the swirl separation tank. 4. The solid separation apparatus according to claim 3, wherein a high-speed swirl means is connected to the upper part of the swirl separation tank, the solid fine particle concentrating / collecting means is connected to the lower part from the central part, and the sedimentation tank is connected to the lower part. And a fluid discharge pipe capable of discharging the clarified fluid upward in parallel with the swirl separation tank and at the center of the top of the high-speed swirl means. And the fluid discharge pipe is disposed with an appropriate length so as to form a double pipe, and the inflow pipe of the fluid to be treated is swirled at the center of the high speed swivel means. The solid pipe is disposed in a tangential direction at a right angle to the separation tank, and the outlet of the inflow pipe is close to the wall surface side of the swirl separation tank and is reduced in cross section to a vertical rectangle. Separation device. 4. The solid separation apparatus according to claim 3, wherein the concentrating and collecting means includes a plurality of cup-shaped cylinders each having a wide mouth having an appropriate size and a narrow mouth having an appropriate size. The cup-shaped cylindrical body has a wide-bore diameter that is the same size as the inner diameter of the cylindrical swirl separator, and the outer peripheral surface of each wide-mouth A solid separation device characterized by being welded and fixed to the inner peripheral surface of the steel. 4. The solid separation apparatus according to claim 3, wherein the pair of injection pipes are in the vicinity of a narrow mouth of the uppermost cup-shaped cylinder or the second-stage cup-shaped cylinder, and the swivel is performed. It is perpendicular to the wall of the separation tank, facing outwards and in opposite directions, and the center of the injection pipe is appropriately shifted in the horizontal direction. And the sedimentation separation tank is a vertically long tank having a larger volume than the swirl separation tank, and two inlets connected to the pair of injection pipes are provided on the upper outer peripheral portion of the tank, In the upper central portion of the tank, one discharge port connected to the connection port in the lower part of the swirl separation tank is disposed, and in the lower part of the settling separation tank, a conical tank and a discharge valve are provided. Is arranged Solid separator that. 4. The solid separation device according to claim 3, wherein the solid separation device and the fluid storage means for the fluid to be treated are fluid pressure feeding means and a flow rate for sucking and supplying a part of the fluid to be treated on the inflow pipe side. The control valve and the fluid supply pipe are connected, the fluid discharge pipe side is connected via the clarified fluid return pipe, and both the solid separation device and the fluid storage means are looped by the pipes. A solids separation device, characterized in that it is arranged to form

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