A high-efficiency anti-clogging cyclone desander and its use method

Abstract

The application relates to the technical field of cyclone desanders, and discloses a high-efficiency anti-blocking cyclone desander and a use method thereof, which comprises a desander main cylinder, a water inlet pipe is arranged in the tangential direction of the periphery of the desander main cylinder, a connecting flange is arranged at the end of the water inlet pipe, a conical body is arranged at the bottom of the desander main cylinder, a sand storage hopper is arranged at the lower end of the conical body in communication, and an electric unloading valve is arranged at the bottom of the sand storage hopper. The high-efficiency anti-blocking cyclone desander and the use method thereof can perform high-pressure flushing on the sand particles accumulated in the sand storage hopper from the liquid spray cover downwards, first, the sand particles can be impacted by the water pressure impact force, so that the desander is prevented from being blocked at the hopper mouth, second, the adhering matters on the hopper wall can be washed away when the sand particles are flushed, so that the hopper wall is cleaned, and manual cleaning is not needed, and third, the water used for flushing is the residual liquid in the cylinder, so that a water source needs not to be separately provided, and the water is reasonably and effectively used on site.

Description

Technical Field

[0001] The present invention relates to the technical field of cyclone desanders, and in particular to a high-efficiency anti-clogging cyclone desander and a use method thereof. Background Art

[0002] The cyclone desander is made based on the screening principle of solid particles in the fluid when they rotate in the desander. It integrates cyclone and filtration, and achieves remarkable effects in desanding, turbidity reduction, solid-liquid separation, etc. in the field of water treatment. It is widely used in water source heat pumps, water treatment, food, medicine and other industrial sectors, and can perform desanding operations on river water, well water, coal washing water, etc.

[0003] Existing cyclone desanders have two technical defects during use and operation. First, the existing cyclone desanders have a sand removal rate of about 60%, which is inefficient. Fine sand in the liquid must be filtered separately by a subsequent fine sand filter to meet the liquid outlet standard (sand removal rate of not less than 80%), resulting in a complex structure of the entire desander, which is time-consuming and labor-intensive. Second, when unloading, the sand particles in the sand hopper are prone to excessive accumulation at the hopper mouth, resulting in a slow discharge speed or even blockage leading to unloading failure. Manual vibration and dredging are also required, which is time-consuming and labor-intensive. Moreover, after unloading, sand particles or impurities are likely to remain on the inner wall of the sand hopper, forming a sticky substance. Therefore, regular cleaning is required, which is quite troublesome.

[0004] In summary, considering that the existing facilities cannot meet the work requirements, we propose a high-efficiency anti-clogging cyclone desander and its use method. Summary of the Invention

[0005] The main purpose of the present invention is to provide a high-efficiency anti-clogging cyclone desander and a method of using the same, which can effectively solve the problems in the background technology.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A high-efficiency anti-clogging cyclone desander and a method for using the same, comprising a desander main cylinder, a water inlet pipe connected in a tangential direction around the desander main cylinder, a connecting flange provided at the end of the water inlet pipe, a cone portion connected to the bottom of the desander main cylinder, a sand storage hopper connected at the lower end of the cone portion, and an electric discharge valve installed at the bottom of the sand storage hopper.

[0008] As a preferred solution of the high-efficiency anti-clogging cyclone desander described in the present invention, an overflow outlet pipe is provided extending upward from the inner center position of the desander main cylinder, and a fine sand multi-stage filter is provided at the top of the desander main cylinder and outside the overflow outlet pipe.

[0009] As a preferred solution of the high-efficiency anti-clogging cyclone sand remover described in the present invention, a bracket is provided on the outer side of the cone portion, a pump seat is provided on the bracket, a centrifugal water pump is installed on the pump seat, an L-shaped suction pipe is connected to the liquid inlet of the centrifugal water pump, the upper end of the L-shaped suction pipe extends into the upper position of the interior of the cone portion, and a pressure pipe is connected to the liquid outlet of the centrifugal water pump.

[0010] As a preferred solution of the high-efficiency anti-clogging cyclone sand remover described in the present invention, the upper end of the overflow outlet pipe is provided with a flow guide cover, and the outer side of the overflow outlet pipe is provided with a first adsorption unit, a second adsorption unit and a third adsorption unit in sequence from the inside to the outside, and the installation heights of the first adsorption unit, the second adsorption unit and the third adsorption unit decrease in sequence in a stepped shape.

[0011] As a preferred embodiment of the high-efficiency anti-clogging cyclone sand remover and its use method described in the present invention, an outer collecting sleeve is fixed around the outer side of the third adsorption unit, a liquid receiving gap is provided at the upper position of the inner side surface of the outer collecting sleeve, and a drainage pipe is provided in the tangential direction around the outer collecting sleeve.

[0012] As a preferred solution of the high-efficiency anti-clogging cyclone sand remover described in the present invention, the first adsorption unit, the second adsorption unit and the third adsorption unit all include a liquid storage seat, a liquid storage cavity, an adsorption material filling plate, an outer baffle, an inner baffle and a guide port. A liquid storage cavity is provided at the lower position of the interior of the liquid storage seat, an adsorption material filling plate is fixed at the upper position of the interior of the liquid storage seat and at the upper end of the liquid storage cavity, a plurality of groups of penetration holes are provided in the adsorption material filling plate, a packing layer is provided on the upper end face of the adsorption material filling plate, an outer baffle is provided around the outer position of the packing layer, an inner baffle is provided around the inner position of the packing layer, a plurality of groups of guide ports are evenly provided on the upper end face of the outer baffle and the guide cover, and the number of the guide ports is preferably 8-16 groups.

[0013] As a preferred solution of the high-efficiency anti-clogging cyclone sand remover described in the present invention, the pressure tube is fixed to the rear of the receiving seat at one end away from the centrifugal water pump, the receiving seat extends toward the inner wall of the cone portion, a corrugated telescopic tube is provided at the end of the pressure tube and located in the inner cavity of the receiving seat, the end of the corrugated telescopic tube away from the pressure tube is horizontally connected to a movable tube, and the front pipe mouth of the movable tube is downwardly connected to a liquid spray hood.

[0014] As a preferred solution of the high-efficiency anti-clogging cyclone sand remover described in the present invention, a sealing opening is opened on the surface of the storage seat located on the inner wall of the cone part, and the movable tube and the liquid spraying cover extend into the cone part through the sealing opening, so that the liquid spraying cover is aimed downward at the center position of the sand storage hopper and sprays liquid.

[0015] As a preferred scheme of the high-efficiency anti-blocking cyclone sand remover, the sealing cover structure is movably arranged on the sealing opening, and the lower end of the moving pipe is provided with a traction structure.

[0016] As a preferred scheme of the high-efficiency anti-blocking cyclone sand remover, the traction structure comprises a driven sprocket, a driving sprocket, an axle, a bearing seat, a servo motor, a chain and a connecting block, the driven sprocket and the driving sprocket are sleeved on the axle, the end of the axle is fixedly connected with the inner wall of the receiving seat through the bearing seat, one end of the axle of the driving sprocket is connected with the servo motor through a shaft coupling, the driven sprocket and the driving sprocket are connected by the chain, and the upper end of the chain is welded to the rear position of the lower end surface of the moving pipe through the connecting block.

[0017] As a preferred scheme of the high-efficiency anti-blocking cyclone sand remover, the sealing cover structure comprises a cover body, a positioning shaft, a shaft groove, a torsional spring and a widened sealing ring, the end surface of the cover body is welded with the positioning shaft, the top of the sealing opening is transversely provided with the shaft groove for inserting the positioning shaft, the two ends of the positioning shaft are sleeved with the torsional springs, the number of the torsional springs is two groups, the other end of the torsional spring is fixed in the shaft groove, the outer side surface of the cover body is glued with the widened sealing ring, and the widened sealing ring acts on the sealing opening or the inner wall of the conical part.

[0018] As a preferred scheme of the high-efficiency anti-blocking cyclone sand remover, the outer side surface of the main cylinder body of the sand remover is uniformly welded with supporting legs, and the number of the supporting legs is preferably three groups.

[0019] As a preferred scheme of the high-efficiency anti-blocking cyclone sand remover, a sand collecting box is arranged below the sand storage hopper.

[0020] A use method of the high-efficiency anti-blocking cyclone sand remover comprises the following steps.

[0021] S1: The sand-containing liquid enters into the inside of the main cylinder body of the sand remover from the water inlet pipe through the action of the high-pressure pump, makes centrifugal motion along the inner wall of the cylinder, forms a surrounding fluid in a downward oblique direction along the tangent direction of the periphery of the cylinder body, and pushes down when rotating, when the water flow reaches a certain part of the conical part, under the joint action of the centrifugal force, the centripetal force, the buoyancy and the fluid drag force, the water with low density rises and rotates upward along the axis of the cylinder body, and finally is discharged upward through the overflow outlet pipe, and the sand particles with high density fall into the sand storage hopper under the action of the fluid inertia centrifugal force and the gravity and are temporarily stored.

[0022] S2: The water overflowed from the overflow pipe carries part of the fine sand, and flows into the liquid storage cavity of the first adsorption unit from the guide ports of the guide cover, and the liquid level slowly rises in the liquid storage cavity, so that the liquid slowly penetrates upward through the filler layer, and in the process of penetration, the fine sand is fully adsorbed by the filler layer, and as the liquid level slowly rises, the upper liquid is injected into the liquid storage cavity of the second adsorption unit from the guide ports of the outer baffle.

[0023] S3: The liquid flows in the second adsorption unit for re-adsorption, and then the upper liquid is injected into the liquid storage cavity of the third adsorption unit from the guide ports of the outer baffle, and the liquid flows in the third adsorption unit for re-adsorption, and finally the upper liquid is injected into the inside of the outer collection sleeve from the guide ports of the outer baffle, and the liquid with a very low sand content is discharged outward through the drain pipe.

[0024] S4: After the sand removal process is completed, the electric unloading valve is opened, the servo motor is immediately started, the driving sprocket is rotated, and the driven sprocket is rotated through the chain, the chain moves horizontally forward, thereby driving the moving pipe to move forward, lifting the cover body, the cover body is turned over along the shaft groove until the moving pipe and the liquid spray cover extend into the conical part through the sealing opening, the liquid spray cover is aligned with the center position of the sand storage hopper downward, and the cover body is located above the moving pipe, the cover body is in contact with the conical part by the widened sealing ring, and the liquid above is sealed to a certain extent.

[0025] S5: The centrifugal water pump is started, the L-shaped suction pipe is used to suck the liquid remaining at the upper position of the conical part, and the liquid is sequentially passed through the pressure pipe, the corrugated expansion pipe and the moving pipe, and is washed downward from the liquid spray cover to the sand particles accumulated in the sand storage hopper, and the adherents on the wall of the hopper are washed away, so as to fall into the sand collecting box.

[0026] S6: Then the moving pipe is returned to the inner cavity of the storage seat, the cover body loses the binding force, and under the superposition action of its own gravity and the torsional force of the torsional spring, returns to the sealing opening position, tightly seals the sealing opening, and is ready for use next time.

[0027] The present application provides a high-efficiency anti-clogging cyclone sand remover and its use method by improving the prior art, which has the following significant improvements and advantages compared with the prior art:

[0028] A fine sand multi-stage filter is designed. The water overflowing from the overflow outlet pipe carries some fine sand and flows downward from several groups of diversion ports of the deflector cover into the liquid storage chamber of the first adsorption unit. The liquid level in the liquid storage chamber slowly rises, so that the liquid slowly penetrates upward through the packing layer. During the penetration process, the fine sand is fully adsorbed by the packing layer. As the liquid level slowly rises, the upper layer of liquid is dispersedly injected into the liquid storage chamber of the second adsorption unit from several groups of diversion ports at the outer baffle. The liquid flows in the second adsorption unit for re-adsorption. After that, the upper layer of liquid is dispersedly injected into the liquid storage chamber of the third adsorption unit from several groups of diversion ports at the outer baffle. The liquid flows in the third adsorption unit for re-adsorption. After multi-stage adsorption, the sand removal rate is further improved. The operation is directly performed using the overflow outlet pipe on the top of the desander, utilizing the natural flow kinetic energy of the overflow water. There is no need to set up filters and pipelines separately, which saves time and effort and reduces the complexity of the entire desander structure.

[0029] When the water inlet pipe stops taking in liquid, the servo motor is started immediately, the active sprocket rotates, and the driven sprocket rotates with it through the chain. The chain moves forward horizontally, thereby driving the moving pipe forward until the moving pipe and the spray cover pass through the sealing port and extend into the cone part, so that the spray cover is downwardly aligned with the center position of the sand storage hopper. At this time, the centrifugal water pump is started, and the L-shaped suction pipe is used to suck the residual liquid in the upper position of the cone part, and the liquid is sequentially flushed from the spray cover downward to the sand accumulated in the sand storage hopper through the pressure pipe, the bellows expansion pipe and the moving pipe. First, the water pressure impact force can be used to impact the sand particles to avoid blockage at the bucket mouth. Second, the flushing will flush the sticky objects on the bucket wall, thereby cleaning the bucket wall, without the need for subsequent manual cleaning. Third, the water used for flushing is the residual liquid in the cylinder, and there is no need to provide a separate water source, thereby achieving the purpose of reasonable and effective on-site utilization.

[0030] The sealing cover structure is designed in such a way that the movable tube moves forward first to lift up the cover body, and the cover body contacts the widened sealing ring and the cone part to seal the liquid above to a certain extent. Then the movable tube returns to the inner cavity of the storage seat, and the cover body loses its restraining force. Under the combined effect of its own gravity and the torsion force of the torsion spring, it returns to the sealing position and tightly fits and seals, achieving the effect of automatic sealing on both sides without manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency anti-clogging cyclone desander and its use method of the present invention;

[0032] Figure 2 This is a schematic diagram of the overall structure of another aspect of the present invention;

[0033] Figure 3 Schematic diagram of the external structure of the fine sand multi-stage filter of the present invention;

[0034] Figure 4 Schematic diagram of the specific structure of the adsorption unit of the present invention;

[0035] Figure 5 This is a diagram showing the relative positions of the centrifugal water pump and the storage base of the present invention;

[0036] Figure 6 Schematic diagram of the external pipeline structure of the centrifugal water pump of the present invention;

[0037] Figure 7 It is a specific schematic diagram of the traction structure of the present invention;

[0038] Figure 8 Schematic diagram of the sealing cover structure of the present invention.

[0039] In the figure: 1. Desander main cylinder; 2. Water inlet pipe; 3. Connecting flange; 4. Cone; 5. Sand hopper; 6. Electric discharge valve; 7. Traction structure; 71. Driven sprocket; 72. Driving sprocket; 73. Axle; 74. Bearing seat; 75. Servo motor; 76. Chain; 77. Connecting block; 8. First adsorption unit; 81. Liquid storage seat; 82. Liquid storage chamber; 83. Adsorption material filling plate; 84. Outer baffle; 85. Inner baffle; 86. Diversion port; 9. Sealing cover structure; 91. Cover body; 92. Positioning shaft; 93. Shaft groove; 94. Torsion spring; 95. Widened sealing ring; 10. Fine sand multi-stage filter; 11. Overflow outlet pipe; 12. Diversion cover; 13. Second adsorption unit; 14. Third adsorption unit; 15. Outer collecting sleeve; 16. Liquid receiving gap; 17. Drain pipe; 20. Bracket; 21. Pump seat; 22. Centrifugal water pump; 23. L-shaped suction pipe; 24. Pressure pipe; 25. Storage seat; 26. Corrugated telescopic pipe; 27. Moving pipe; 28. Spray cover; 29. ​​Sealing port; 30. Support leg; 31. Sand collecting box. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0041] like Figures 1-4 As shown, this embodiment provides a high-efficiency anti-clogging cyclone desander and a method for using the same, comprising a desander main cylinder 1, a water inlet pipe 2 is provided in a tangential direction around the desander main cylinder 1, a connecting flange 3 is provided at the end of the water inlet pipe 2, and the connecting flange 3 is used to connect a high-pressure liquid delivery pipe.

[0042] Furthermore, a cone portion 4 is connected to the bottom of the main cylinder 1 of the desander, and a sand hopper 5 is connected to the lower end of the cone portion 4. An electric discharge valve 6 is installed at the bottom of the sand hopper 5. A sand collecting box 31 is provided just below the sand hopper 5 to collect waste sand. Figure 1 shown.

[0043] Furthermore, an overflow outlet pipe 11 is provided at the center of the inner portion of the desander main cylinder 1, and a fine sand multi-stage filter 10 is provided at the top of the desander main cylinder 1 and outside the overflow outlet pipe 11. Figure 1 and 2 shown.

[0044] Specifically, the fine sand multi-stage filter 10 includes a flow guide hood 12, a first adsorption unit 8, a second adsorption unit 13, a third adsorption unit 14 and an outer collection sleeve 15. Figure 3 shown.

[0045] In this embodiment, a deflector 12 is provided at the upper end of the overflow outlet pipe 11 to play a diversion role. The outside of the overflow outlet pipe 11 is provided with a first adsorption unit 8, a second adsorption unit 13 and a third adsorption unit 14 from the inside to the outside. The installation heights of the first adsorption unit 8, the second adsorption unit 13 and the third adsorption unit 14 decrease in sequence in a stepped shape, which is convenient for utilizing the height difference to flow downward in sequence and slowly deposit.

[0046] In this embodiment, an outer collecting sleeve 15 is fixed around the outer side of the third adsorption unit 14, and a liquid receiving gap 16 is provided on the upper part of the inner side surface of the outer collecting sleeve 15 to receive the liquid. A drainage pipe 17 is provided around the outer collecting sleeve 15 in a tangential direction to discharge the liquid.

[0047] Specifically, the first adsorption unit 8, the second adsorption unit 13 and the third adsorption unit 14 each include a liquid storage seat 81, a liquid storage cavity 82, an adsorption material filling plate 83, an outer baffle 84, an inner baffle 85 and a guide port 86, as shown in FIG. Figure 4 shown.

[0048] In this embodiment, a liquid storage cavity 82 is provided at the lower portion of the liquid storage seat 81 , and an adsorbent filling plate 83 is fixed at the upper portion of the liquid storage seat 81 and at the upper end of the liquid storage cavity 82 .

[0049] In this embodiment, a plurality of penetration holes are provided inside the adsorbent filling plate 83 for upward penetration of liquid. A filler layer (activated carbon or polymer adsorbent) is provided on the upper end face of the adsorbent filling plate 83. An outer baffle 84 is provided around the outer portion of the filler layer, and an inner baffle 85 is provided around the inner portion of the filler layer. Both the outer baffle 84 and the inner baffle 85 serve to block liquid. A plurality of guide ports 86 are evenly provided on the upper end face of the outer baffle 84 and the guide cover 12 to serve to uniformly guide flow.

[0050] Further, the outer side of the sand remover main cylinder 1 is uniformly welded with a support 30, which plays a supporting role, as shown in Figure 2 .

[0051] In use, the sand-containing liquid enters the sand remover main cylinder 1 from the water inlet pipe 2 under the action of the high-pressure pump, and makes centrifugal motion along the inner wall of the cylinder, and forms a tangential downward peripheral fluid along the tangential direction of the cylinder. When the water flow reaches a certain part of the conical part 4, the water with low density rises upward along the axis of the cylinder under the combined action of centrifugal force, centripetal force, buoyancy and fluid drag force, and finally is discharged upward through the overflow outlet pipe 11. The sand with high density falls along the wall of the conical part 4 into the sand storage hopper 5 under the action of fluid inertia centrifugal force and its own gravity, and is temporarily stored. The water overflowing from the overflow outlet pipe 11 carries part of the fine sand, which flows downward into the liquid storage cavity 82 of the first adsorption unit 8 through the guide cover 12. The liquid level in the liquid storage cavity 82 slowly rises, so that the liquid slowly penetrates upward through the filler layer. In the process of penetration, the fine sand is fully adsorbed by the filler layer. As the liquid level slowly rises, the upper layer of liquid is injected into the liquid storage cavity 82 of the second adsorption unit 13 through the guide cover 12. The liquid is adsorbed again in the second adsorption unit 13 (the liquid adsorption process is the same as the foregoing). Then, the upper layer of liquid is injected into the liquid storage cavity 82 of the third adsorption unit 14 through the guide cover 12. The liquid is adsorbed again in the third adsorption unit 14 (the liquid adsorption process is the same as the foregoing). Finally, the upper layer of liquid is injected into the inside of the outer collection sleeve 15 through the guide cover 12, and is discharged outside through the drain pipe 17. After the sand removal process is completed, the electric discharge valve 6 is opened, and the sand particles in the sand storage hopper 5 fall into the sand collection box 31 together with the residual liquid in the cylinder, and are collected. Example Two

[0052] On the basis of example one, the sand particles in the sand storage hopper 5 are prone to accumulate too much at the hopper opening during discharge, which leads to slow discharge speed, even blockage leading to discharge failure, and manual vibration and dredging are required, which is time-consuming and laborious. In addition, after the discharge is completed, the sand particles or impurities formed on the inner wall of the sand storage hopper 5 are prone to form a cohesive material, which needs to be cleaned regularly. In order to solve the above technical problems, we have the following design, as shown in Figure 2 , 5 , 6, 7, 8.

[0053] Specifically, a bracket 20 is provided on the outer side of the cone portion 4 to play a supporting role. A pump seat 21 is provided on the bracket 20. A centrifugal water pump 22 is installed on the pump seat 21. The liquid inlet of the centrifugal water pump 22 is connected to an L-shaped suction pipe 23. The upper end of the L-shaped suction pipe 23 extends into the upper position of the interior of the cone portion 4, as shown in FIG. Figure 2 and 5 shown.

[0054] Furthermore, a pressure pipe 24 is connected to the liquid outlet of the centrifugal water pump 22. One end of the pressure pipe 24 away from the centrifugal water pump 22 is fixed to the rear of the receiving seat 25 to play a connecting role. The receiving seat 25 extends toward the inner wall of the cone portion 4, and the two are completely fitted (curved surface). Figure 6 shown.

[0055] Among them, the end of the pressure tube 24 is provided with a bellows telescopic tube 26 located in the inner cavity of the storage seat 25. The bellows telescopic tube 26 can be linearly extended or contracted. The end of the bellows telescopic tube 26 away from the pressure tube 24 is horizontally connected to a moving tube 27. The front pipe mouth of the moving tube 27 is downwardly connected to a spray cover 28. The spray cover 28 is used to increase the spray range, such as Figure 6 shown.

[0056] Furthermore, a sealing opening 29 is provided on the surface of the receiving seat 25 located on the inner wall of the cone portion 4. The sealing opening 29 and the cover 91 are matched (the surfaces of both are curved and fully fit together). The moving tube 27 and the liquid spraying cover 28 pass through the sealing opening 29 and extend into the cone portion 4, so that the liquid spraying cover 28 sprays liquid downwardly at the center of the sand storage hopper 5. Figure 5 shown.

[0057] Furthermore, a traction structure 7 is provided at the lower end of the mobile tube 27 and at the bottom of the receiving seat 25, such as Figure 6 shown.

[0058] Specifically, the traction structure 7 includes a driven sprocket 71, a driving sprocket 72, a wheel shaft 73, a bearing seat 74, a servo motor 75, a chain 76 and a connecting block 77. Figure 7 shown.

[0059] In this embodiment, the driven sprocket 71 and the driving sprocket 72 are respectively sleeved on the axle 73, and the ends of the axle 73 are fixedly connected to the inner wall of the storage seat 25 through the bearing seat 74. One end of the axle 73 of the driving sprocket 72 is connected to the servo motor 75 through a coupling.

[0060] In this embodiment, the driven sprocket 71 and the driving sprocket 72 are connected by a chain 76. The upper end of the chain 76 is welded to the rear position of the lower end surface of the moving tube 27 through a connecting block 77. The traction structure 7 is located in the sealing seat at the lower position inside the storage seat 25. The top of the sealing seat is provided with a limiting groove for the connecting block 77 to extend and move in a straight line. The lower end surface of the moving tube 27 is in partial contact with the upper end surface of the sealing seat, which plays a supporting role to prevent the moving tube 27 from being displaced when the liquid flows at high speed in the tube.

[0061] Furthermore, a sealing cover structure 9 is movably provided on the sealing opening 29, such as Figure 5 shown.

[0062] Specifically, the sealing cover structure 9 includes a cover body 91, a positioning shaft 92, a shaft groove 93, a torsion spring 94 and a widened sealing ring 95. Figure 8 shown.

[0063] In this embodiment, a positioning shaft 92 is welded to the end face of the cover body 91, and an axis groove 93 for inserting the positioning shaft 92 is horizontally opened at the top of the sealing port 29. Both ends of the positioning shaft 92 are sleeved with torsion springs 94, and the other end of the torsion spring 94 is fixed inside the axis groove 93. A widened sealing ring 95 is glued around the outer side surface of the cover body 91. The widened sealing ring 95 acts on the sealing port 29 or the inner wall of the cone part 4. When the widened sealing ring 95 contacts the inner wall of the cone part 4, the sealing performance is not required to be too high, and the position where the cover body 91 is lifted up is the curved convex surface of the moving tube 27.

[0064] When the present embodiment is in use, after the water inlet pipe 2 stops inflowing liquid, the servo motor 75 is immediately started, the driving sprocket 72 rotates, and the driven sprocket 71 rotates along with it through the chain 76, and the chain 76 moves forward horizontally, thereby driving the moving pipe 27 to move forward, lifting the cover 91, and the cover 91 flips along the shaft groove 93 until the moving pipe 27 and the liquid spraying cover 28 pass through the sealing opening 29 and extend into the cone portion 4, so that the liquid spraying cover 28 is downwardly aligned with the center position of the sand storage hopper 5, and at the same time the cover 91 is located above the moving pipe 27, and the cover 91 contacts the cone portion 4 with the widened sealing ring 95 (not completely sealed), The liquid above is sealed to a certain extent. At this time, the centrifugal water pump 22 is started, and the liquid remaining in the upper position of the cone part 4 is sucked through the L-shaped suction pipe 23. The liquid passes through the pressure pipe 24, the bellows expansion pipe 26 and the moving pipe 27 in turn, and the sand accumulated in the sand storage hopper 5 is flushed downward from the liquid spray cover 28 at high pressure, and the sticky objects on the hopper wall are washed away, so that they fall into the sand collecting box 31 together. After that, the moving pipe 27 returns to the inner cavity of the storage seat 25, and the cover body 91 loses its restraint force. Under the combined action of its own gravity and the torsion of the torsion spring 94, it returns to the sealing port 29 position, tightly fits and seals, and is ready for next use.

[0065] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0066] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency anti-clogging cyclone desander, comprising a desander main cylinder (1), characterized in that: A water inlet pipe (2) is provided in a tangential direction around the main cylinder (1) of the desander, and a connecting flange (3) is provided at the end of the water inlet pipe (2). A cone portion (4) is provided at the bottom of the main cylinder (1) of the desander, and a sand storage hopper (5) is provided at the lower end of the cone portion (4). An electric discharge valve (6) is installed at the bottom of the sand storage hopper (5). An overflow outlet pipe (11) is provided at the center of the interior of the desander main cylinder (1) and extends upwards, and a fine sand multi-stage filter (10) is provided at the top of the desander main cylinder (1) and outside the overflow outlet pipe (11); A bracket (20) is provided on the outer side of the cone portion (4), a pump seat (21) is provided on the bracket (20), a centrifugal water pump (22) is installed on the pump seat (21), an L-shaped suction pipe (23) is connected to the liquid inlet of the centrifugal water pump (22), the upper end of the L-shaped suction pipe (23) extends into the upper part of the cone portion (4), and a pressure pipe (24) is connected to the liquid outlet of the centrifugal water pump (22); A deflector (12) is provided at the upper end of the overflow outlet pipe (11), and a first adsorption unit (8), a second adsorption unit (13), and a third adsorption unit (14) are sequentially provided on the outer side of the overflow outlet pipe (11) from the inside to the outside, wherein the installation heights of the first adsorption unit (8), the second adsorption unit (13), and the third adsorption unit (14) decrease in sequence, forming a stepped shape; An outer collecting sleeve (15) is fixed around the outer periphery of the third adsorption unit (14); a liquid receiving gap (16) is provided on the upper portion of the inner side surface of the outer collecting sleeve (15); and a drainage pipe (17) is provided in a tangential direction around the outer collecting sleeve (15); The first adsorption unit (8), the second adsorption unit (13) and the third adsorption unit (14) all include a liquid storage seat (81), a liquid storage cavity (82), an adsorption material filling plate (83), an outer baffle (84), an inner baffle (85) and a diversion port (86). The liquid storage seat (81) is provided with a liquid storage cavity (82) at a lower position inside, and an adsorption material filling plate (83) is fixed at an upper position inside the liquid storage seat (81) and at the upper end of the liquid storage cavity (82). A plurality of groups of permeation holes are provided in the adsorption material filling plate (83). A packing layer is provided on the upper end surface of the adsorption material filling plate (83). An outer baffle (84) is provided around the outer position of the packing layer, and an inner baffle (85) is provided around the inner position of the packing layer. A plurality of groups of diversion ports (86) are evenly provided on the upper end surface of the outer baffle (84) and the diversion cover (12).

2. The high-efficiency anti-clogging cyclone desander according to claim 1, characterized in that: One end of the pressure pipe (24) away from the centrifugal water pump (22) is fixed to the rear of the receiving seat (25), and the receiving seat (25) extends toward the inner wall of the cone portion (4). A bellows telescopic pipe (26) is provided at the end of the pressure pipe (24) and located in the inner cavity of the receiving seat (25). One end of the bellows telescopic pipe (26) away from the pressure pipe (24) is horizontally connected to a moving pipe (27), and a front pipe opening of the moving pipe (27) is downwardly connected to a liquid spraying cover (28).

3. The high-efficiency anti-clogging cyclone desander according to claim 2, characterized in that: The receiving seat (25) is provided with a sealing opening (29) on the surface of the inner wall of the cone portion (4), and the movable tube (27) and the liquid spraying cover (28) extend into the cone portion (4) through the sealing opening (29), so that the liquid spraying cover (28) is directed downwardly toward the center of the sand storage hopper (5) to spray liquid.

4. The high-efficiency anti-clogging cyclone desander according to claim 3, characterized in that: A sealing cover structure (9) is movably provided on the sealing port (29), and a traction structure (7) is provided at the lower end of the movable tube (27) and at the bottom of the receiving seat (25).

5. The high-efficiency anti-clogging cyclone desander according to claim 4, characterized in that: The traction structure (7) comprises a driven sprocket (71), a driving sprocket (72), a wheel shaft (73), a bearing seat (74), a servo motor (75), a chain (76) and a connecting block (77). The driven sprocket (71) and the driving sprocket (72) are respectively sleeved on the wheel shaft (73). The end of the wheel shaft (73) is fixedly connected to the inner wall of the storage seat (25) through the bearing seat (74). One end of the wheel shaft (73) of the driving sprocket (72) is connected to the servo motor (75) through a coupling. The driven sprocket (71) and the driving sprocket (72) are connected by a chain (76). The upper end of the chain (76) is welded to the rear position of the lower end surface of the moving tube (27) through a connecting block (77).

6. The high-efficiency anti-clogging cyclone desander according to claim 4, characterized in that: The sealing cover structure (9) comprises a cover body (91), a positioning shaft (92), a shaft groove (93), a torsion spring (94) and a widened sealing ring (95). The positioning shaft (92) is welded to the end face of the cover body (91). A shaft groove (93) for inserting the positioning shaft (92) is transversely opened at the top of the sealing opening (29). Both ends of the positioning shaft (92) are sleeved with torsion springs (94). The other end of the torsion spring (94) is fixed inside the shaft groove (93). A widened sealing ring (95) is glued to the outer side surface of the cover body (91). The widened sealing ring (95) acts on the sealing opening (29) or the inner wall of the cone portion (4).

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