15results about How to "Improve sand removal effect" patented technology

The invention belongs to the field of sewage treatment, and discloses a low-solid-content sewage cyclone desanding system and a control method thereof.The low-solid-content sewage cyclone desanding system comprises a pressure transmitter arranged on a water inlet pipe; the plurality of hydrocyclones are connected with the water inlet pipe; the plurality of first valves are arranged on an inlet pipeline of the cyclone and are associated with the pressure transmitter; a sand collecting chamber is arranged at a first sand discharging opening of the cyclone; the sand collecting chamber outlet end is provided with a second valve; the sand-water separator is connected with the outlet end of the second valve; the controller is connected with the pressure transmitter, the first valve, the cyclone, the second valve and the sand-water separator; the hydrocyclones, the first valves, the sand collecting chambers and the second valves are equal in number and are correspondingly arranged on the parallel branches, and the number of the parallel branches is three or more. The system can automatically regulate and control the operation of the cyclone according to the total water inlet pressure fluctuation, solves the problems of unstable operation flow state, poor sand removal effect and the like caused by water inlet flow fluctuation, is suitable for sand removal treatment of sewage with large water inlet fluctuation and low solid content, and is efficient and stable in operation and good in sand removal effect.

The invention belongs to the technical field of gas production and sand removal, and provides a sand removal and plug removal device for a gas production well, which comprises a control pup joint, a power pup joint and a sand removal shovel assembly which are sequentially connected from top to bottom, the control short section comprises an upper pipe body, the top of the upper pipe body communicates with the upper pipe column, a plurality of gas holes are formed in the side wall of the upper pipe body, a flow channel switching assembly and a control ball are arranged in the upper pipe body, and when the control ball controls the flow channel switching assembly to be in a gas production state, natural gas enters the upper pipe column through the gas holes and the flow channel switching assembly. When the control ball controls the flow channel switching assembly to be in a desanding state, fluid for desanding enters the power short section through the upper pipe column and the flow channel switching assembly; the power short section comprises a lower pipe body, and a fluid power assembly is arranged in the lower pipe body. The desanding shovel assembly is in transmission connection with the bottom of the fluid power assembly, and a jet flow assembly is further arranged in the desanding shovel assembly. The desander can be used for a long time after one-time well descending, and sand can be quickly and efficiently removed without repeatedly lifting and descending a tubular column.

The invention relates to an auxiliary sand cleaning device and method for sand core forming. The device comprises a fixed part, a rotating part and a flapping part. The fixing part comprises a connecting frame, and a rotary driving piece is arranged on the connecting frame; the rotating part comprises a cantilever beam, one end of the cantilever beam is connected with the output end of the rotating driving piece, and the other end is connected with the flapping part; the flapping part comprises a floating mechanism and a floating plate; the floating mechanism provides elastic restoring force for the floating plate, so that the floating plate can float relative to the cantilever beam after being subjected to external force; the area of the floating plate is larger than that of a sand shooting opening of the core making mold; in the working process, the connecting frame is used for being connected with sand shooting equipment, the rotating driving piece is used for providing rotating torque, the cantilever beam is used for converting the rotating torque into beating motion of the beating part, and therefore the floating plate can be aligned with a sand shooting opening for repeated beating. Uncured precoated sand in the sand core can be removed to the maximum extent, and the sand discharging effect is improved.

The utility model relates to a surface desanding device after speed reducer shell demolding, and belongs to the technical field of speed reducer shell production. The surface desanding device comprises a machine shell provided with an automatic sealing door, a bearing frame is arranged in the machine shell, and a shell surface desanding mechanism is arranged on the bearing frame; the shell surface desanding mechanism comprises a pneumatic rotating chuck fixed to the bearing frame and a desanding assembly arranged on the bearing frame. The device is simple in structure and convenient to use, the speed reducer shell is clamped and driven to rotate by arranging the pneumatic rotating chuck, and then the end face of the speed reducer shell is subjected to sand blasting grinding through the first sand blasting gun and the second sand blasting gun; and the servo motor linear guide rail sliding table drives the third sand blasting gun to conduct sand blasting grinding on the outer surface of the speed reducer shell, the sand removing effect is good, workers only need to take and place the speed reducer shell in the whole process, the automation degree is high, the labor intensity of the workers can be lowered, and the production efficiency can be improved.

This utility model discloses a comprehensive water conveyance and sediment discharge structure for a water conservancy project, including a water conveyance channel and a control gate; a sediment discharge vortex pipe with one end extending out of the water conveyance channel is obliquely embedded on the bottom wall surface of the water conveyance channel, and a strip-shaped sediment discharge port with a low front edge and a high rear edge is opened on the upper surface of the sediment discharge vortex pipe located inside the water conveyance channel; a sediment discharge pool is connected to one side of the water conveyance channel behind the sediment discharge vortex pipe, and the sediment discharge pool is composed of a sunken base and a water intake side wall surrounding the outer perimeter of the base. The base has a conical funnel structure, and its upper edge is flush with the bottom wall of the water conveyance channel. The water intake side wall has a sloping structure, and its bottom slope is connected to the upper edge of the base; a sediment discharge bottom hole is provided at the center of the base, and a sediment discharge gallery is connected to the sediment discharge bottom hole. A flow regulating pier wall is provided on the side wall of the water conveyance channel opposite to the sediment discharge pool. The advantage of this invention is that it forms a multi-stage sand removal structure from front to back, which greatly improves the sand removal effect and efficiency, and ensures that the water quality flowing out of the water conveyance channel meets the standards.

The utility model discloses a cyclone desander for natural gas exploitation in the technical field of natural gas desanders, which comprises a desanding cylinder, a mounting plate is arranged in the middle of the inside of the desanding cylinder, a mounting hole is arranged in the middle of the mounting plate, a mounting groove is arranged at the top of the mounting hole, an inner cylinder is arranged at the bottom of the mounting plate, and an outer cylinder is arranged at the bottom of the inner cylinder. A filter element fixing frame is arranged in the mounting groove, a filter element is arranged at the bottom of the filter element fixing frame, a fixing block is arranged on the upper portion in the sand removing cylinder, a sliding groove and a sliding groove positioning opening are formed in the fixing block, a positioning rod is arranged in the positioning opening, a pressing plate is arranged at the bottom of the positioning rod, and a threaded hole is formed in the middle of the positioning rod. A top cover is arranged at the top of the desanding cylinder, a through hole is formed in the middle of the top cover, the positioning rod loosens fixation of the top cover through rotation of the threaded rod, the filter element is rapidly detached and cleaned, meanwhile, the filter element is rapidly installed, and the desander is kept to keep a good desanding effect all the time.

The utility model relates to the technical field of geothermal water desanding, and discloses a geothermal water desanding device based on geothermal utilization, which comprises a barrel body, an interlayer I is arranged in the middle of the barrel body, the inner wall of the interlayer I is connected with a desanding box in a sliding manner, the side wall of the desanding box is provided with a sliding chute, the inner wall of the desanding box is fixedly connected with a filter screen, and the filter screen is fixedly connected with the interlayer I; a second interlayer is installed in the middle of the barrel body, an activated carbon plate is slidably connected to the inner wall of the second interlayer, an activated carbon containing groove is formed in the top of the activated carbon plate, and a feeding opening is fixedly connected to the side wall of the barrel body. According to the utility model, through the arrangement of a drawing type, rapid switching of an internal filtering and desanding structure can be better realized, impurities after desanding can be better and rapidly taken out during use, liquid filtration and fixed retention can be realized by the filter screen, and the filter screen is more convenient and rapid, and has a wider application range.

The application discloses a kind of based on self-vibration effect's breaking down gate sand diversion wall structure, the branch stream side of dry flow and branch stream confluence has gate sand area, along the transverse extension of branch stream is used to guide water wall of high water level, guide water wall is set in gate sand area upstream;The middle part of guide water wall is equipped with gate, gate is installed in gate, and the guide water wall of gate extends downstream direction and is equipped with water retaining wall, water retaining wall extends into gate sand area, and water retaining wall includes left side wall and right side wall that are symmetrically arranged, left side wall and right side wall are all ladder-shaped, and the left side wall and right side wall are surrounded to be used to flush sand harmonic cavity for water retaining and flushing, and the downstream of flush sand harmonic cavity is narrower than upstream.The application also discloses corresponding use method.The application utilizes the structure of the application when breaking down gate sand, forms as intense resonance phenomenon as possible by artificial control height difference, and the breaking down efficiency and effect of gate sand are improved by corresponding water flow phenomenon.

The invention relates to the technical field of unconventional gas desanding equipment, and particularly discloses a desanding device for unconventional gas exploitation, which comprises a shell, the shell is provided with a gas inlet, a drain outlet and a gas outlet, and the shell is internally provided with a separation mechanism for desanding; the separating mechanism comprises a first separating plate and a second separating plate, the second separating plate is arranged above the first separating plate, and the first separating plate is arranged above the air inlet; the central position of the first separation plate is higher than the edge of the first separation plate, so that a gas gathering space is formed at the lower part of the first separation plate, and the second separation plate and the first separation plate have the same shape; a plurality of first separation holes are formed in the first separation plate and vertically penetrate through the first separation plate, and a plurality of second separation holes are formed in the second separation plate and vertically penetrate through the second separation plate. According to the invention, not only can fluid containing unconventional gas be subjected to desanding treatment so as to solve the problem of erosion of gravel to pipeline equipment, but also the desanding efficiency is high.

The invention belongs to the technical field of desanding equipment, and provides a 175MPa cyclone desander which comprises an inner container, an outer container and a cyclone separator, a filter assembly; a driving assembly; according to the invention, fluid with low density drives fine gravels to enter the inner container from the through holes, the fluid moves upwards and then passes through the filter cover, the fine gravels are blocked by the filter cover, and along with the impact of the fluid, the fine gravels slowly enter the first flow channel, move downwards along the first flow channel and are discharged through the second flow channel; in this way, most of the gravels driven by the fluid to move upwards can be finally discharged into the sand collecting cylinder, and the situation that the fine gravels are driven by the fluid moving upwards to move up and down repeatedly is effectively avoided, so that the filter cover is prevented from being damaged, the gravels blocked on the filter cover are prevented from being blocked more seriously, the filter cover is prevented from being blocked seriously, and the service life of the filter cover is prolonged. And the feeding speed and the discharging speed in the desanding cylinder are slightly different and are relatively stable, so that blockage in the desanding cylinder is avoided, and the desanding effect is improved.

This utility model belongs to the field of automotive parts, specifically relating to a sand core weight reduction structure applied to a low-pressure cavity subframe. It includes a sand core body and a cover. The thicker portion of the sand core body is hollowed out to form a concave structure. A step, approximately the same thickness as the cover, is provided at the upper end of the concave structure to accommodate the thin-walled cover. When the sand core body and the sand core cover are combined, the outer surface forms the interior required for the casting, and the interior forms a box-shaped cavity weight reduction structure. This reduces the amount of core sand used, lowers the labor intensity of operators during handling, and improves the efficiency of subsequent sand removal, thus enhancing the sand removal effect.

The utility model discloses a desanding device for deep well water with high silt content, which relates to the technical field of desanding devices, and comprises a tank-shaped device main body with a storage space for desanding inside; the channel is matched with the device main body and is mounted in the device main body; a desanding structure is mounted in the device body, movable structures are mounted in the device body and at the bottom of the desanding structure, a water inlet structure is connected to the top of the device body, a water outlet structure is connected to the bottom of the device body, and the desanding structure comprises a second treatment part, a connecting part and a first treatment part; the sand removing structure can be driven to move in the vertical direction through the movable structure, so that silt on the surface of the sand removing structure can move to a certain degree, the sand removing structure can be driven to move in the vertical direction, the sand removing effect is improved, and the service life of the sand removing structure is prolonged. Therefore, the sand removal effect can be prevented from being influenced by sediment accumulation.

The utility model belongs to the technical field of sewage treatment, and particularly relates to a sewage pool desanding device which comprises a sewage pool body, an input pipe is arranged on the side wall of the sewage pool body; the top of the sewage pool body is fixedly connected with a motor; the output end of the motor is connected with a connecting rod; the connecting rod penetrates through the top of the sewage pool body; the connecting rod is in running fit with the top of the sewage pool body; the side wall of the connecting rod is rotationally matched with a first fixing plate. The bottom of the connecting rod is fixedly connected with a second fixing plate; the top of the second fixing plate is fixedly connected with a first water filtering film; through the arrangement of an input pipe, sewage can be input into a first water filtering film, a motor drives a connecting rod to drive a second fixing plate and the first water filtering film to rotate to generate centrifugal force to throw out the sewage through the first water filtering film, and settled sand with overlarge specification is bound in the first water filtering film to be continuously collided and broken; accumulation of settled sand with overlarge specifications in the sewage pool body is reduced, and the treatment effect of the sewage pool desanding device on the settled sand is enhanced.

The utility model discloses an efficient desanding device for potato starch, and relates to the technical field of starch processing. Comprising a base; supporting legs are installed on the periphery of the bottom end of the base, universal wheels are installed at the bottom ends of the supporting legs, a sealing plate is installed on the periphery of the top end of the base, and a top cover is installed at the top end of the sealing plate. The desanding mechanism is arranged at the top end of the base and is used for desanding potato starch; the auxiliary mechanism is arranged at the top end of the top cover and is used for carrying out fluidized transportation on the potato starch. The rotating rod is driven by the driving motor to rotate, the transmission plate is driven by the fixed disc to swing in the rotating process of the rotating rod, the screen is synchronously driven to vibrate synchronously in the swinging process of the transmission plate, sand removal can be performed on starch through vibration of the screen, repeated operation for sand removal is avoided, and the utilization rate of the device is improved.

The utility model relates to the technical field of oyster conveying devices, and discloses a quantitative conveying device for oyster processing, which comprises a base, a conveying mechanism and a quantitative feeding mechanism, the conveying mechanism and the quantitative feeding mechanism are both assembled at the top of the base, the top of the base is connected with a toothed plate, the top of the conveying mechanism is connected with limiting seats at equal intervals, and the toothed plate is connected with the limiting seats. A conveying box is connected to the top of the limiting seat, a stirring mechanism is assembled in the conveying box, and a first fixing arm is fixedly connected to the top of the base. According to the quantitative conveying device for oyster processing, the stirring mechanism is additionally arranged to automatically drive oysters and saline water in the toothed plate to shake, then the oysters are forced to open shells and discharge sand during transportation, meanwhile, the sand discharge effect of the oysters is improved by stirring the saline water, and the quality of processed finished products after the oysters are transported is improved; hypoxia death caused by long-time immobility of the oysters during transportation is avoided, meanwhile, the content of silt in the oysters is reduced, and the overall quality of the oysters is improved.