1307results about "Reversed direction vortex" patented technology

A hand vacuum cleaner comprises a cyclone, a conical pre-motor filter that is positioned rearward of the cyclone and a suction motor. The pre-motor filter has a front end that faces that faces towards the cyclone air outlet. The conical pre-motor filter has an open interior volume, an outer surface, which is an upstream surface of the pre-motor filter, and an inner surface, which is a downstream surface of the pre-motor filter.

The partial or full dehydration of organic or inorganic matter containing water by induction of matter into a vacuum and processing matter through a specially designed acceleration channel is disclosed. The inducted matter accelerates in air from zero speed to sub-sonic speed to reach supersonic speed. As the material transitions the sound barrier, it is subject to acoustic shock waves and an instant negative pressure drop occurs. The sound waves disintegrate, disinfect the material and extract part or all moisture from any organic or inorganic material.

The invention belongs to the technical field of oil-gas-water separation equipment, and discloses an ultrasonic detonation rotational flow microbubble flotation device which comprises a vertical container tank with inner and outer stepped double-barrel design and a separation inner barrel, an oil gathering umbrella is arranged on the upper portion of the interior, an oil discharge connector is arranged on the outer wall of one side, and surrounding physical demulsification coalescence filler is arranged on the upper portion of the area between the tank and the inner barrel. And the lower part of the separation inner cylinder is provided with a reverse symmetrical double-tangential rotational flow inlet, the bottom of the separation inner cylinder is externally provided with a purified backflow water inlet and is communicated with the purified water diversion outlet in a process manner, and the bottom of the separation inner cylinder is internally provided with a gas-water mixer and an ultrasonic knocker. By combining ultrasonic cavitation, rotational flow centrifugation, micro-nano bubbles and physical coalescence demulsification technologies, the diameter of the bubbles is reduced by 15 microns or below through the ultrasonic detonation cavitation effect, fine oil drops and suspended particles which are difficult to treat through traditional flotation and are 10 microns or below can be captured, the method is suitable for multi-phase separation of discrete high-concentration fine pollutants, and the flotation efficiency is improved. Complex separation scenes such as oily sewage, micro-plastics and mineral flotation can be treated.

The invention discloses a cyclone separator for collecting powder coating, and relates to the technical field of cyclone separators. Comprising a barrel, the outer side of the barrel is fixedly connected with a support, the outer side of the barrel is fixedly connected with a feeding pipe, a conical barrel is fixedly connected to the bottom of the barrel, a spiral plate is fixedly connected to the inner wall of the conical barrel, a spiral groove is formed in the inner wall of the conical barrel, a round hole is formed in the middle of the top of the barrel, and a supporting column is fixedly connected to the top of the barrel; the number of the supporting columns is multiple, the multiple supporting columns are evenly distributed with the discharging assembly as the center, the tops of the supporting columns are fixedly connected with a bearing plate, and the top of the bearing plate is fixedly connected with the motor. According to the cyclone separator for collecting the powder coating, a definite flowing path is provided for dust particles by arranging the spiral groove and the spiral flow guide groove, so that dust can move towards the dust discharging opening more smoothly, the accumulation and backmixing phenomena of the dust on the inner wall of the conical barrel are reduced, and the dust discharging efficiency and stability are improved.

The invention relates to an efficient self-exhaust air floating type hydraulic cyclone device and a using method, the device is applied to particle size separation, the device is composed of an inlet pipe, an overflow pipe, an exhaust plug, a buffer cushion, an exhaust pipe, a columnar barrel, flanges (a barrel flange and a cone flange), a cone, a porous pipe, a fixing ring and an underflow pipe, and the method comprises the following steps of 1, coarse screening, 2, feeding and 3, cyclone separation. 4, air floatation reinforcement; and 5, automatic exhaust. Compared with the prior art, compared with a traditional air floating type swirler, the device has a more stable swirling flow field, the separation efficiency is improved by 15%, and the pressure drop is reduced by 50%.

To properly guide a flow of granular material to a probe in a measuring system for measuring characteristics of the granular material separated from gas by a cyclone separator.SOLUTION: A separation system includes: a cyclone that separates granular material from mixed fluid containing a gas and the granular material; a container that has a truncated conical portion whose diameter gradually decreases downward and is connected to a granular material outlet of the cyclone so that the granular material separated by the cyclone falls while swirling; a conical cone disposed in the container; and a measurement probe that has a measurement unit disposed downstream of a flow of the granular material passing between a lower end of the cone and an inner wall of the container and measures a particle diameter of the granular material passing through the measurement unit.SELECTED DRAWING: Figure 1

The utility model provides a cyclone device applied to screening of aerobic granular sludge of an SBR (sequencing batch reactor), which comprises the SBR, a cyclone device, a cyclone device and a cyclone device, and is characterized in that an aerobic granular sludge mixed solution is filled in the SBR; the hydraulic cyclone system comprises a hydraulic cyclone and a mud bucket, the hydraulic cyclone is provided with a feed port, an overflow port and an underflow port, the underflow port of the hydraulic cyclone is connected with an inlet of the mud bucket, and an outlet of the mud bucket is connected with an inlet of the SBR reactor or connected with the outside of the mud bucket; the reflux system comprises a reflux pipe, a reflux pump and a control valve assembly, the outlet of the SBR is communicated with the feed port of the hydrocyclone through the reflux pipe, the reflux pump and the control valve assembly are arranged on the reflux pipe, and the control valve assembly controls the on-off and the flow velocity of the reflux pipe. According to the invention, the hydraulic shearing condition is adjusted by arranging the hydrocyclone, so that the purposes of shortening the granulation time of the aerobic granular sludge, shortening the starting time of the SBR reactor, enhancing the settleability of the aerobic granular sludge and improving the operation stability of the whole system are achieved.

A system and method are provided in at least one embodiment to process water to produce gas that can be separated into at least two gas flows using a water treatment system having a disk-pack rotating in it to cause out gassing from the water. In a further embodiment, the method and system use the gas released from the water to produce substantially fresh water from the processed salt water.

A cone or cylindrical tube stack with narrow in-between gap circumferential surface swirling cyclone separator according to the present invention, creating swirling flow by flowing along the convex outer surface of the inner-stacked cone or cylindrical tube. The inner wall of the outer-stacked cone or cylindrical tube, which is a concave surface, serves as the wall for collecting fluid with larger or higher density particles that is opposite to the surface for swirling, which is disposed in accordance with the separation movement of larger or higher density particles that centrifuged from swirling by their inertial force. The distance that the particles travel towards the wall for collecting fluid with larger or higher density particles is short due to the narrow swirling and separating gaps, combined with the flow on the convex curved surface of the cone or cylindrical tube walls which pressure drag is low, this results in higher swirling speeds than those on the concave inner surface of conventional cyclone, significantly increasing the inertial force of particles centrifuged away from the swirling. Consequently, the separation efficiency of the cone or tube stack circumferential surface swirling cyclone separator according to the present invention is much higher than that of conventional cyclone separators. Especially in cases where the cyclone fluid separator according to the present invention is equipped with multi-stage separation, where the final stage utilizes multiple small cyclones, and in configurations where multiple cones are stacked and equipped with device for swirling and counter-flow separation, which convex fluid drainage ridges are installed on the wall for collecting fluid with larger or higher density particles, the ridges curving towards the side that the swirling flow flows to, sloping from the downstream edges of the cones or cylindrical tubes towards the upstream edges of the cones or cylindrical tubes, which counter to the swirling flow along the convex curved surface of the outer circumferential surface of cone or cylindrical tube. When working with a reverse swirling system, enabling to recycle multiple separation within the system before the fluid exits the separator, enabling high separation efficiency for separating various types of fluids mixed into emulsion or separating micron-level dust such as PM 2.5 from the air.

The utility model provides an anti-clogging cyclone separator which comprises a barrel and a cone which are coaxially connected up and down in the vertical direction, a medium inlet is formed in one side of the barrel in the tangential direction, an exhaust pipe upwards penetrating to the outside is coaxially arranged in the middle of the barrel, a particle discharge port is formed in the bottom end of the cone, and a flow guide device is further arranged at the bottom of the cone. The flow guide device comprises a plurality of flow guide plates, the flow guide plates are of conical cylindrical structures, the inclination degree of the side faces of the flow guide plates is the same as that of the cone, so that the flow guide plates form a coaxial nested structure at the bottom of the cone, and bottom discharge ports of the flow guide plates are correspondingly formed in the bottom end of the cone. According to the utility model, a plurality of layers of separation spaces are formed by the adjacent guide plates and the inner wall of the cone, and gas can be simultaneously contacted with the inner surface and the outer surface, so that the friction separation efficiency of granular impurities is improved. And the bottom of the cone is divided into smaller spaces, so that the airflow speed is higher, adsorption and adhesion are not easy to occur, and the probability of bottom blockage of the cyclone separator is reduced.

A system is provided in at least one embodiment to process water to produce gas that can be separated into at least two gas flows using a water treatment system having a disk-pack rotating in it to cause out gassing from the water. In a further embodiment, the system use the gas released from the water to produce substantially fresh water from the processed salt water.

The invention discloses a continuous multi-stage narrow-granularity-section micron particle and coarse particulate matter grading screening device and a continuous multi-stage narrow-granularity-section micron particle and coarse particulate matter grading screening method. The device is formed by connecting a rotational flow grading module, a purification liquid supplementing module and a filtering concentration module in series, the rotational flow grading module and the purification liquid supplementing module are respectively formed by connecting n hydrocyclones with the same structure and different specifications in parallel, the hydrocyclones of the two modules are in one-to-one correspondence, every two hydrocyclones are connected in series to form a hydrocyclone group, then the n hydrocyclone groups are connected in parallel, and n is equal to the number of target particle size sections minus 1. And through a series-parallel connection structure of the multi-stage cyclone, precise stepless regulation and control and circulating purification of size grading are realized. After being stirred, a solid-liquid mixture is sequentially graded and purified by a cyclone group, and then is concentrated by a cloth bag filter of the filtering and concentrating module. The device is automatically controlled through a PLC, can realize high-precision and high-efficiency grading of micron and coarse particles in a narrow particle size section, and has the advantages of high separation precision, energy conservation, high applicability and the like.

The invention discloses an oil reservoir exploitation multiphase flow separation device with cyclone pre-separation, which comprises a cyclone separator body, a cyclone separation assembly, a purification and deposition prevention assembly and a gas export and purification assembly, and is characterized in that the cyclone separation assembly is mounted in the cyclone separator body; according to the device, primary screening and flow equalizing are carried out on high-sand-content multi-phase fluid through a honeycomb damping grid at the front end of a micro rotational flow channel by utilizing a regular pore channel structure of the honeycomb damping grid, large-particle solid impurities are effectively intercepted, and the high-sand-content multi-phase fluid is purified; after the fluid passes through the honeycomb damping grid, the fluid enters the conical opening of the micro rotational flow channel, the flow speed is increased under the acceleration action of the contraction section, a high-strength rotational flow field is generated along a flow guide path formed by the micro spiral grooves, and the fluid is prevented from directly entering the micro rotational flow channel to cause local blockage or abrasion; and primary separation of oil, gas, water and solid impurities is realized under the action of centrifugal force.

The invention discloses a powder concentrator for powder materials, and relates to the technical field of powder concentrators, the powder concentrator comprises an annular volute and a grading area arranged in the annular volute, the grading area comprises a plurality of guide blades, the guide blades are arranged in the annular volute in an annular array mode, and the angles of the guide blades can be adjusted according to different particle sizes; the rotating cage is rotationally installed in the annular volute and located in the center of the inner sides of the multiple guide blades; materials enter the base flow guide cone and flow upwards; annular airflow fed by the annular volute on the periphery enters the rotating cage through the tangential angle regulated and controlled by the guide blades, and is separated under the rotating action of the rotating cage. The invention provides a dynamic powder selecting channel with an inner ring for supplying air materials and an outer ring for discharging coarse materials for the first time, and a complete spiral shear flow field is constructed; an annular auxiliary air supply fan is externally arranged, the front shearing and particle staying path of the rotating cage is enhanced, and separation dead angles are avoided; the angles of the guide blades are adjustable, different particle size / productivity requirements are met, and the working condition matching performance is improved.

The utility model relates to an air supplement structure of a dry quenching primary cyclone dust collector, which comprises a primary dust collector and a central pipe, the central pipe is arranged at the center of the upper part of the primary dust collector, a circulating gas inlet of the primary dust collector is connected with a dry quenching furnace, and the bottom of the central pipe is communicated with an inner cavity of the primary dust collector; a circulating gas outlet in the upper end of the central pipe is connected with the waste heat boiler, a gas circulation channel is formed in the pipe wall of the central pipe, an air inlet is formed in the upper end of the gas circulation channel in the pipe wall of the central pipe, and an air outlet is formed in the lower end of the gas circulation channel in the pipe wall of the central pipe towards the interior of the central pipe. And the air leading-in outlet is an outlet which is vertically inward in the radial direction. According to the utility model, an air introduction mode is provided, burning loss of combustible gas components in circulating gas and a small amount (10%-20%) of residual fine coke powder in dust removal in the central pipe of the dust remover is realized, burning loss of most (80%-90%) removed coke powder is avoided, carbon burning loss in a carbon melting reaction is reduced, and carbon emission reduction is realized.

The invention relates to the technical field of rotational flow desilting devices, and particularly discloses a rotational flow desilting device for hydraulic engineering, which comprises a rotational flow desilting cylinder, a rotational flow assembly, a sand-water separation assembly, a conveying assembly and a control management unit, a discharging pipe is fixedly connected to the bottom of the rotational flow desilting cylinder, a control valve is fixedly connected to the interior of the discharging pipe, an electric valve is fixedly connected to the interior of the water inlet pipe, and the control management unit is used for monitoring and analyzing the running state of the rotational flow desilting cylinder in real time. According to the invention, through the arrangement of the control management unit, the traditional extensive mode depending on artificial experience judgment can be changed, so that the equipment operation information can be obtained more comprehensively, timely and accurately. Based on the data, different working conditions can be accurately identified, a basis is provided for parameter optimization, and the problem that traditional fixed parameter control cannot adapt to sewage characteristic changes is solved.

The utility model relates to the technical field of cyclone separation dust removers, and discloses a cyclone separation dust remover with a waste heat recovery function, the cyclone separation dust remover comprises a shell, a cyclone is arranged on the inner side of the shell, a gas collecting hood is arranged in the cyclone, a hood plate is arranged at the upper end of the gas collecting hood, a heat exchange pipe is arranged on the hood plate, and a waste heat recovery device is arranged in the shell. A condensate water scraping assembly is arranged on the inner side of the heat exchange pipe and comprises a plurality of scraping plates attached to the surface of the heat exchange pipe, and the scraping plates can move along the Z axis. Through cooperative use of the flow guide assembly, the drainage pipe, the heat exchange pipe and the condensate water scraping assembly, efficient recovery of waste heat in smoke, heat exchange between the heat exchange pipe and hot air and smoke waste heat absorption are achieved, a driving motor drives a threaded rod to rotate, a scraping plate moves up and down to scrape condensate water on the surface of the heat exchange pipe, the heat exchange efficiency is prevented from being affected, and the heat exchange efficiency is improved. The device has the characteristics of high waste heat recovery efficiency and high waste heat utilization rate.

An efficient multiphase-flow graded-separation, concentration, and purification system for argillaceous sandstone uranium ore includes a hydraulic tossing washing and scattering pretreatment device, a high-frequency linear vibration grading device, a first-stage multiphase-flow swirling grading device, an energy-gathering ultrasonic scrubbing device, a second-stage multiphase-flow swirling grading device, a high-frequency linear vibration dewatering device, an efficient uniform-mixing and activating system and a conditioning and pressing dewatering system. The present disclosure implements intensive mud-sand stripping of crushed argillaceous sandstone uranium ore, fine graded-separation of material, and efficient uniform-mixing and activating and deep efficient dewatering of fine-particle argillaceous material. Finally, four types of core material of coarse sand material, fine sand material, dry tailings residue and a high-concentration uranium ore leaching solution are formed through continuous work. Efficient multiphase-flow graded-separation, concentration and purification of the argillaceous sandstone uranium ore are implemented, and an intensive extraction rate of uranium ore resources is improved.

The utility model discloses a self-cleaning cyclone for a power plant, which belongs to the technical field of cyclones and is characterized by comprising a cylinder section, the bottom of the cylinder section is fixedly communicated with a conical body section, the left side of the surface of the cylinder section is fixedly communicated with a feed pipe, and the right side of the surface of the cylinder section is fixedly communicated with an overflow pipe. By arranging the cleaning mechanism, an electric air cylinder can drive the cleaning mechanism to flexibly move up and down, kinetic energy generated when flushing water flows can drive an impeller to rotate, and the impeller can drive a rotating shaft and an annular scraper to rotate together when rotating, so that the annular scraper can rotate while moving; and then washing water in the water storage bin can enter the annular pipe through the connecting pipe, so that the washing water can carry out high-pressure washing on the inner wall of the cylinder section through the high-pressure spray head, and therefore the cleaning effect is improved.

A surface cleaning apparatus having an upright section moveable relative to a surface cleaning head between a storage position and a rearwardly reclined floor cleaning position. The upright section comprising a removable hand vacuum cleaner. The hand vacuum cleaner is operable in a first mode of operation in which the surface cleaning apparatus is operated to clean a floor, the inlet of the hand vacuum cleaner is in flow communication with the surface cleaning head air outlet and the air treatment member of the hand vacuum cleaner is operable to treat air drawn in through the dirty air inlet of the surface cleaning head. The hand vacuum cleaner is also operable in a second mode of operation in which the hand vacuum cleaner is operable to directly clean a floor or the air inlet of the hand vacuum cleaner is directly connected to the downstream end of an accessory tool.

An improved modular hydrocyclone and method of operating for centrifugal cleaning fluid wherein the hydrocyclone has a plurality of inserts each of different sizes and configurations for selectively and interchangeably inserting into the modular body thereby adjusting capacity and cleaning efficiency of the hydrocyclone without changing out the body. One or more embodiments relate to systems and methods for utilizing a hydrocyclone system with interchangeable components.

The invention discloses a novel swirler for building drainage, relates to the technical field of swirlers, and aims to solve the problem that impurities such as leaves and ropes in building drainage easily block a water inlet pipe of the swirler. The novel swirler comprises a swirler body, and a desilting assembly is arranged at the bottom end of the swirler body; an overflow pipe is arranged at the top end of the cyclone body, a water inlet pipe is further communicated with the cyclone body, a filtering assembly is installed on the water inlet pipe and comprises an upper filtering shell and a lower filtering shell which are detachably connected, the lower filtering shell is communicated with the water inlet pipe, a conical filtering net is arranged in the lower filtering shell, and the upper filtering shell is communicated with the lower filtering shell. A collecting box is arranged at the center of the filter screen, the collecting box is arranged at the bottom end of the filter screen, the collecting box and the filter screen are coaxially arranged, and a drain hole is formed in the bottom end of the collecting box.

Provided is a technique for improving the efficiency of adsorption of a protein onto a carrier in an apparatus equipped with an in-line mixer and a hydrocyclone. An adsorption method disclosed herein is performed using an apparatus equipped with an in-line mixer and a hydrocyclone connected to the in-line mixer. The adsorption method is a method in which a protein is adsorbed onto a carrier provided with a ligand capable of binding to the protein. The adsorption method includes: mixing a first slurry containing a carrier with a second slurry containing a protein using an in-line mixer to prepare a mixed slurry; and adsorbing the protein onto the carrier in the mixed slurry to produce a complex between the protein and the carrier. The mixed slurry is prepared so as to contain the carrier in an amount of 10-25 vol% and the protein in an amount of 5-20 mg per 1 ml of the carrier when the whole amount of the mixed slurry is 100 vol%. The mixing time in the inline mixer is 0.6-60 seconds.

A dust collecting device is provided. The dust collecting device includes a particle separation component, an airflow output component and a particle collection component. One side of the particle separation component extends outward to form a first gas input portion, one end of the particle separation component extends outward to form a first gas output portion, and another end of the particle separation component extends outward to form a foreign matter outlet portion. One side of the airflow output component extends outward to form an airflow inlet portion, one end of the airflow output component extends outward to form a second gas output portion, and another end of the airflow output component extends outward to form a second gas input portion. The second gas output portion is connected to the first gas input portion. The particle collection component is connected to the foreign matter outlet portion.

To provide a technique for improving the efficiency of adsorption of a protein onto a carrier in an apparatus equipped with an in-line mixer and a hydrocyclone.SOLUTION: An adsorption method disclosed herein is performed using an apparatus equipped with an in-line mixer and a hydrocyclone connected to the in-line mixer. The adsorption method is a method in which a protein is adsorbed onto a carrier provided with a ligand capable of binding to the protein. The adsorption method includes: mixing a first slurry containing a carrier with a second slurry containing a protein using an in-line mixer; and adsorbing the protein onto the carrier in the mixed slurry to produce a complex between the protein and the carrier. The mixed slurry is prepared so as to contain the carrier in an amount of 10-25 vol.% and the protein in an amount of 5-20 mg per ml of the carrier when the total amount of the mixed slurry is 100 vol%. The mixing time in the inline mixer is 0.6-60 seconds.SELECTED DRAWING: None

The invention discloses a coal gangue decarburization method and device, the device comprises a feeding bin, a cyclone preheating separator and a cyclone separator, the feeding bin is communicated with the cyclone preheating separator, and the cyclone preheating separator is provided with an auxiliary heating device; the cyclone preheating separator is communicated with the suspension furnace, and the cyclone preheating separator is communicated with the suspension furnace through the cyclone separator; one end of the suspension furnace is communicated with an air heater, and the other end is communicated with the cyclone separator; the cyclone separator is communicated with an air feeder; calcination at the sintering temperature not higher than 1050 DEG C is realized, so that the problems of overhigh ignition loss and sintering are solved, the ignition loss is effectively controlled to be 0.5% or below, and meanwhile, the carbon content is controlled to be 0.3% or below; the coal gangue powder can be calcined in 250 meshes, and the plasticity index of the coal gangue powder is not reduced.

The utility model belongs to the technical field of crushing, and particularly relates to a dragon cyclone crusher production line which comprises a dragon cyclone crusher body, a grader and a dust remover, the grader is provided with a feeding end, a first discharging end and a second discharging end, and a discharging pipe of the dragon cyclone crusher body is connected with the feeding end of the grader; a first discharging end of the grader is connected with a feeding pipe of the dust remover; according to the dragon cyclone crusher production line, crushing of the materials in the cavity is differentiated, over-crushing of the materials reaching a certain size fraction can be reduced, and finally the production line combining the dragon cyclone crusher, the grader and the dust remover produces the least over-crushed materials.

The utility model relates to the technical field of hydrocyclones, and discloses a hydrocyclone desilting nozzle which comprises a desilting nozzle body, a cone is fixedly installed at the top of the desilting nozzle body through a flange, a vortex chamber is fixedly installed at the top of the cone through a flange, and a cleaning mechanism is installed in the cone. The cleaning mechanism comprises a first mounting frame fixedly mounted on the top side in the cone, a guide cylinder fixedly mounted in the middle of the first mounting frame, and bearings fixedly mounted on the two sides of the outer wall of the guide cylinder. When a solution flows in the swirler in a spiral shape, the spiral blade arranged in the cone can rotate along with the flowing of the liquid, so that the rotating drum is driven to rotate, the flowing of the liquid is accelerated, the separation and classification speed of the solution can be accelerated, and the bottom scraping plate can be synchronously driven to rotate; particles attached to the inner wall of the desilting nozzle are cleaned, and the situation that coarse particles block the interior of the desilting nozzle, and the solution separation and classification efficiency is reduced is avoided.

A cyclonic particle separator (126) may include a housing (130) including a cylindrical sidewall (132) having a plurality of flow entry ports (134). A cover member (136) closes a first end (138) of the cylindrical sidewall (132), and a mounting member (140) having a flow exit opening (160) defined therethrough is at a second end (142) of the cylindrical sidewall (132). At least one particle exit passage (176) is defined in the housing (130). Each of the plurality of flow entry ports (134) includes a flow directing surface angled to direct a gas flow from upstream of the housing (130) to enter the housing (130) in a tangential direction relative to the cylindrical sidewall (132), causing a cyclone vortex. The cyclone vortex acts to separate particles from the gas flow.

The present invention provides a steel sand screening device, which includes a hollow pressure-bearing housing. The pressure-bearing housing includes: a top part provided with an installation opening, a bottom part provided with a sand discharge opening, and a side wall located between the top part and the bottom part. A swirling inlet is provided on the side wall, and the swirling inlet is connected to an inlet acceleration conduit for swirling and transporting sewage into the pressure-bearing housing. A central diversion pipe is provided inside the pressure-bearing housing, and a diversion cone plate is provided between the central diversion pipe and the sand discharge opening. The diversion cone plate is provided with diversion holes. The present invention can make the sewage generate a swirl and then use centrifugal force to separate steel sand, and can further remove suspended impurities in the steel sand. It separates and recovers the steel sand in the sewage by mechanical means, and has the advantages of high separation efficiency, simple and reliable structure, and convenient operation.