Solid-liquid separation type cyclone desander and method of operating the same

Abstract

The application relates to the field of cyclone desanders, in particular to a solid-liquid separation type cyclone desander and an operating method thereof, wherein the solid-liquid separation type cyclone desander comprises a frame body, a cyclone chamber is arranged on the frame body, and an end cover is bolted to the upper end of the cyclone chamber; an L-shaped drainage pipe is fixedly connected to the middle of the end cover, a through hole is arranged at the corner position of the drainage pipe, a transmission shaft is rotationally connected in the through hole, a belt pulley is fixedly connected to the outer ring of the upper end of the transmission shaft, a horizontal plate is fixedly connected to the upper end of the transmission shaft, support rods are fixedly connected to the two ends of the horizontal plate, and the lower ends of the support rods are fixedly connected to the end cover; the cyclone desander pumps in a water flow with low pressure, the water flow is cycloned in the cyclone chamber, when the water level height of the water flow at the middle position of the vortex flow tends to be equal to the lower end of the cover body, the water flow is sucked into the cover body, the water pressure is reduced, the required pump body power is reduced, the water flow speed is reduced, and the impurities in the water flow also reduce the impact and abrasion on the inner wall of the cyclone chamber.

Description

Technical Field

[0001] This invention relates to the field of hydrocyclone sand separators, specifically a solid-liquid separation type hydrocyclone sand separator and its operating method. Background Technology

[0002] Hydrocyclone sand separators are designed based on the sieving principle of solid particles rotating within a fluid. They integrate cyclone and filtration, achieving significant effects in sand removal, turbidity reduction, and solid-liquid separation in water treatment. They are widely used in water source heat pumps, water treatment, food, and pharmaceutical industries. Applications include sand removal from river and well water, coal washing water, industrial mineral processing, liquid degassing, and separation of immiscible liquids.

[0003] To improve impurity removal, existing hydrocyclone sand separators typically increase inlet water pressure and cyclone speed, allowing more impurities to settle to the bottom. However, increasing inlet water pressure requires a more powerful pump, and it also increases the water flow velocity, which in turn increases the flow velocity of impurities, especially harder ones. This increases the impact and wear on the inner wall of the hydrocyclone sand separator. Furthermore, the increased water pressure also increases the vortex depth, making it difficult for the vortex water to reach the drain pipe, resulting in poor water discharge.

[0004] Therefore, a solid-liquid separation cyclone sand separator and its operation method are proposed to address the above problems. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: The solid-liquid separation cyclone sand remover of the present invention includes a frame, a cyclone chamber provided on the frame, and an end cover bolted to the upper end of the cyclone chamber; an L-shaped drain pipe is fixed to the middle of the end cover, a through hole is opened at the corner of the drain pipe, a drive shaft is rotatably connected in the through hole, a pulley is fixed to the outer ring of the upper end of the drive shaft, a horizontal plate is fixed to the upper end of the drive shaft, support rods are fixed to both ends of the horizontal plate, and the lower end of the support rod is fixed to the end cover;

[0007] The lower end of the drive shaft extends to the vortex chamber, and an impeller is fixedly connected to the outer ring of the lower end of the drive shaft; the outer ring of the impeller is provided with a circular cover, the lower port of the cover faces the lower discharge port of the vortex chamber, the upper end of the cover is fixedly connected to the connection position between the drain pipe and the end cover, and the upper half of the cover is at the same height as the water inlet pipe communicating with the vortex chamber; the diameter of the upper port of the cover is smaller than the diameter of its lower port.

[0008] Preferably, the lower end of the cover is provided with a circular tube, the upper end of the circular tube is flared and connected to the lower port of the cover, the lower end of the circular tube extends towards the drain pipe, and the surface of the circular tube is provided with multiple water inlet holes.

[0009] Preferably, the circular tube is provided with a spiral blade, and the upper end of the spiral blade shaft is fixed to the lower end of the transmission shaft; the edge of the spiral blade is provided with a brush.

[0010] Preferably, the height of the inlet port of each of the inlet holes is lower than the height of its outlet port, and the lower edge of the outlet port of each inlet hole is inclined upward.

[0011] Preferably, the lower end of the shaft protrudes from the lower end of the circular tube, and a cross rod is fixedly connected to the lower end of the shaft. The end of the cross rod protrudes horizontally from the outer surface of the circular tube, and a vertical rod is fixedly connected to the end of the cross rod. The vertical rod is rotatably mounted on the surface of the circular tube.

[0012] Preferably, the upper end of the vertical rod is fixedly connected to a ring; the outer ring of the upper end of the circular tube is provided with an annular groove, and the ring is rotatably connected in the annular groove.

[0013] Preferably, a protective plate is fixed to the inner wall of the vortex chamber, and the protective plate is located on the side of the water inlet pipe in the direction of water inlet.

[0014] Preferably, each of the vertical rods is also provided with a brush on the side wall opposite to the surface of the circular tube.

[0015] An operating method for a solid-liquid separation hydrocyclone sand separator, applicable to any of the aforementioned solid-liquid separation hydrocyclone sand separators, comprising the following steps:

[0016] S1: The pulley at the upper end of the drive shaft is connected to the pulley of an external motor via a belt. Before water is injected into the vortex chamber, the motor drives the impeller to rotate.

[0017] S2: Then water is injected into the vortex chamber. First, a downward-sloping surrounding fluid is formed along the tangential direction around the inner surface of the vortex chamber. The water flows downward in a rotating motion. When the water reaches the cone part of the vortex chamber, it turns upward along the axis of the vortex chamber and is finally discharged through the outlet pipe. Under the action of the fluid inertial centrifugal force and its own gravity, the dirt falls along the cone wall into the discharge port at the lower end of the vortex chamber.

[0018] S3: A manual butterfly valve is installed at the discharge port. When the discharge port is full of impurities, the manual butterfly valve is opened to discharge the impurities.

[0019] The preferred manual butterfly valve housing described in S3 is made of transparent plastic.

[0020] The advantages of this invention are:

[0021] 1. This cyclone desander pumps in a low-pressure water flow. The water flows in the cyclone chamber. When the water level in the middle of the vortex is close to the same height as the lower port of the shroud, the water will be drawn into the shroud. The water pressure is reduced, the required pump power is reduced, and the water flow velocity is reduced. The impact and wear of impurities in the water on the inner wall of the cyclone chamber is also reduced.

[0022] 2. In this invention, the spiral blades push the water flow upwards into the cover in a timely manner, allowing the water to be quickly discharged from the drain pipe. The brushes on the spiral blades can clean each water inlet hole, removing impurities that clog the water inlet holes and ensuring the water intake effect. The shape of the water inlet holes also constrains the flow direction of the water flow during the upward push of the spiral blades, preventing the lower water flow from being pushed upwards and discharged from the upper water inlet hole. Attached Figure Description

[0023] Figure 1 This is a perspective view of the cyclone sand separator in this invention;

[0024] Figure 2 This is a sectional perspective view of the cyclone sand separator in this invention;

[0025] Figure 3 This is a cross-sectional view of the cyclone sand separator in this invention;

[0026] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0027] Figure 5 This is a cross-sectional view of the circular tube wall in this invention;

[0028] Figure 6 This is a perspective view of the fit between the cover and the circular tube in this invention;

[0029] Figure 7 This is a perspective view of the fit between the spiral blade and the circular tube in this invention;

[0030] Figure 8 This is a flowchart of the operation of the cyclone sand separator in this invention.

[0031] In the diagram: 1. Frame; 2. Swirl chamber; 3. End cover; 4. Drain pipe; 5. Drive shaft; 6. Pulley; 7. Horizontal plate; 8. Support rod; 9. Impeller; 10. Cover; 11. Discharge port; 12. Water inlet pipe; 13. Circular pipe; 14. Water inlet hole; 15. Spiral blade; 16. Inclined slope; 17. Cross rod; 18. Vertical rod; 19. Ring body; 20. Annular groove; 21. Guard plate. Detailed Implementation

[0032] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0033] Reference Figure 1 - Figure 3 A solid-liquid separation cyclone sand remover includes a frame 1, a cyclone chamber 2 on the frame 1, and an end cover 3 bolted to the upper end of the cyclone chamber 2; an L-shaped drain pipe 4 is fixed to the middle of the end cover 3, a through hole is opened at the corner of the drain pipe 4, a drive shaft 5 is rotatably connected in the through hole, a pulley 6 is fixed to the outer ring of the upper end of the drive shaft 5, a horizontal plate 7 is fixed to the upper end of the drive shaft 5, support rods 8 are fixed to both ends of the horizontal plate 7, and the lower end of the support rods 8 is fixed to the end cover 3.

[0034] The lower end of the drive shaft 5 extends to the vortex chamber 2, and an impeller 9 is fixedly connected to the outer ring of the lower end of the drive shaft 5; the outer ring of the impeller 9 is provided with a circular cover 10, the lower port of the cover 10 faces the lower discharge port 11 of the vortex chamber 2, the upper end of the cover 10 is fixedly connected to the connection position between the drain pipe 4 and the end cover 3, and the upper half of the cover 10 is at the same height as the water inlet pipe 12 communicating with the vortex chamber 2; the diameter of the upper port of the cover 10 is smaller than the diameter of its lower port.

[0035] In this embodiment, an impeller 9 is designed inside the vortex chamber 2. An external motor drives the drive shaft 5 on the end cover 3 to rotate via a belt-to-belt connection. The drive shaft 5 drives the impeller 9 to rotate. After water is injected into the vortex chamber 2 through the inlet pipe 12, the water flow impacts and forms a vortex in the vortex chamber 2. As the water level in the vortex chamber 2 gradually rises, and before the water level reaches the connection position between the drain pipe 4 and the end cover 3, the water flows into the cover 10 from the lower port. At the same time, the rotation of the impeller 9 promptly removes the water flowing into the cover 10. As the water is drawn upwards, the shroud 10 approaches a negative pressure state, drawing more water into the shroud 10 and finally discharging it from the drain pipe 4. This cyclone desander pumps in water at a lower pressure, which swirls within the cyclone chamber 2. When the water level in the middle of the vortex approaches the same height as the lower end of the shroud 10, the water is drawn into the shroud 10, reducing the water pressure and the required pump power. At the same time, the water flow velocity decreases, and the impact and wear of impurities in the water on the inner wall of the cyclone chamber 2 is also reduced.

[0036] Reference Figure 1 - Figure 3 ,as well as Figure 6 - Figure 7The lower end of the cover 10 is provided with a circular tube 13. The upper end of the circular tube 13 is flared and connects to the lower port of the cover 10. The lower end of the circular tube 13 extends towards the drain pipe 4, and multiple water inlet holes 14 are opened on the surface of the circular tube 13. When the water pressure increases, the water level at the center of the vortex decreases accordingly. When the water pressure decreases, the water level at the center of the vortex increases. The circular tube 13 and the water inlet holes 14 on the circular tube 13 isolate impurities and restrict water to flow into the circular tube 13 through the water inlet holes 14. The lower port of the circular tube 13 is provided with a cover plate with multiple water inlet holes 14 to prevent impurities from rushing up the circular tube 13 and being discharged from the drain pipe 4. While ensuring the vortex impurity reduction effect, the water pressure is also guaranteed. At the same time, the circular tube 13 can reach the vortex with a lower water level. That is, the circular tube can reach the vortex with a lower water level, and the depth of the vortex ensures that impurities are effectively reduced.

[0037] Reference Figure 7 The circular tube 13 is equipped with a spiral blade 15, and the upper end of the shaft of the spiral blade 15 is fixed to the lower end of the transmission shaft 5. The edge of the spiral blade 15 is equipped with a brush. The spiral blade 15 pushes the water flow upward into the cover 10 in time, so that the water flow can be quickly discharged from the drain pipe 4. The brush on the spiral blade 15 can clean each water inlet hole 14, remove the impurities blocking the water inlet hole 14, and ensure the water intake effect of the water inlet hole 14.

[0038] Reference Figure 5 The height of the inlet port of each water inlet 14 is lower than the height of its outlet port, and the lower edge of the outlet port of each water inlet 14 is inclined upward with a slope 16. The shape of the water inlet 14 is designed so that when the spiral blade 15 rotates and pushes the water flow upward, it constrains the flow direction of the water flow and prevents the lower water flow from being pushed upward and discharged from the upper water inlet 14.

[0039] Reference Figure 6 - Figure 7 The lower end of the shaft protrudes from the lower end of the circular tube 13, and a cross rod 17 is fixedly connected to the lower end of the shaft. The end of the cross rod 17 protrudes horizontally from the outer surface of the circular tube 13, and a vertical rod 18 is fixedly connected to the end of the cross rod 17. The vertical rod 18 is rotatably mounted on the surface of the circular tube 13. The lower end of the shaft rotates and passes through the cover plate. The shaft drives the vertical rod 18 to rotate through the cross rod 17. The vertical rod 18 rotates while attached to the surface of the circular tube 13, scraping off the impurities adsorbed on the surface of the circular tube 13 to prevent the impurities from clogging the water inlet hole 14. At the same time, the vertical rod 18 can also scrape and break up some of the impurities, reducing the possibility of clogging the water inlet hole 14.

[0040] Reference Figure 3 - Figure 4The upper end of the vertical rod 18 is fixedly connected to a ring 19; the outer ring of the upper end of the circular tube 13 is provided with an annular groove 20, and the ring 19 is rotatably connected in the annular groove 20; during the rotation of the vertical rod 18 around the circular tube 13, the vertical rod 18 itself has a tendency to tilt outward, especially near the upper end of the vertical rod 18, this tendency is more obvious, which will cause the surface of the vertical rod 18 to be unable to cover the surface of the circular tube 13 for rotation, and it will be difficult to scrape and clean the impurities on the surface of the circular tube 13. Therefore, an annular body 19 is provided at the upper end of the vertical rod 18, and the annular body 19 rotates in the annular groove 20 to constrain the vertical rod 18, so that the vertical rod 18 can stably cover the surface of the circular tube 13 for rotation.

[0041] Reference Figure 3 A protective plate 21 is fixedly connected to the inner wall of the vortex chamber 2. The protective plate 21 is located on the side of the water inlet pipe 12 in the direction of water inlet. The protective plate 21 is installed in the vortex chamber 2 to protect the vortex chamber 2. The water flow washes over the protective plate 21 and the surface of the protective plate 21 is worn. In order to facilitate the replacement of the protective plate 21, the protective plate 21 can be bolted to the inner wall of the vortex chamber 2.

[0042] Reference Figure 6 Each of the vertical rods 18 is also provided with a brush on the side wall opposite to the surface of the circular tube 13; of the four vertical rods 18, one pair of vertical rods 18 is provided with brush bristles, while the other pair of vertical rods 18 is not provided with brush bristles. During the rotation of the brush bristles around the circular tube 13, the ends of the brush bristles can extend to the water inlet hole 14, push the impurities in the water inlet hole 14 out of the water inlet hole 14 and push them into the circular tube 13, thereby improving the cleaning effect of the water inlet hole 14.

[0043] Reference Figure 8 An operating method for a solid-liquid separation hydrocyclone sand separator, applicable to any of the aforementioned solid-liquid separation hydrocyclone sand separators, comprising the following steps:

[0044] S1: The pulley 6 at the upper end of the drive shaft 5 is connected to the pulley 6 of an external motor via a belt. Before water is injected into the vortex chamber 2, the motor drives the impeller 9 to rotate.

[0045] S2: Then water is injected into the vortex chamber 2. First, a downward-sloping surrounding fluid is formed along the tangential direction around the inner surface of the vortex chamber 2. The water flows downward in a rotating motion. When the water reaches the cone part of the vortex chamber 2, it turns upward along the axis of the vortex chamber 2 and is finally discharged through the outlet pipe 4. Under the action of the inertial centrifugal force of the fluid and its own gravity, the dirt falls along the cone wall into the discharge port 11 at the lower end of the vortex chamber 2.

[0046] S3: A manual butterfly valve is installed at the discharge port 11. When the discharge port 11 is full of impurities, the manual butterfly valve is opened to discharge the impurities.

[0047] The manual butterfly valve housing described in S3 is made of transparent plastic material; impurities are swirled and settled into the manual butterfly valve by the water flow. Through the transparent manual butterfly valve housing, the impurities deposited inside the manual butterfly valve housing can be constantly penetrated and discharged from the swirling chamber 2 in a timely manner.

[0048] Working principle: In this embodiment, an impeller 9 is designed inside the vortex chamber 2. An external motor drives the drive shaft 5 on the end cover 3 to rotate via a belt-to-belt connection. The drive shaft 5 drives the impeller 9 to rotate. After water is injected into the vortex chamber 2 through the inlet pipe 12, the water flow impacts and forms a vortex in the vortex chamber 2. As the water level in the vortex chamber 2 gradually rises, and before the water level reaches the connection position between the drain pipe 4 and the end cover 3, the water flows into the cover 10 from the lower port. At the same time, the rotation of the impeller 9 promptly removes the water flowing into the cover 10. As the water flows upward, the shroud 10 approaches a negative pressure state during the process, drawing more water into the shroud 10 and finally discharging it from the drain pipe 4. This cyclone desander pumps in water at a lower pressure, which swirls within the cyclone chamber 2. When the water level in the middle of the vortex approaches the same height as the lower end of the shroud 10, the water is drawn into the shroud 10, reducing the water pressure and the required pump power. At the same time, the water flow velocity decreases, and the impact and wear of impurities in the water on the inner wall of the cyclone chamber 2 is also reduced.

[0049] As water pressure increases, the water level at the center of the vortex decreases; conversely, as water pressure decreases, the water level at the center of the vortex increases. A circular pipe 13 is installed with inlet holes 14 to isolate impurities, restricting water flow into the circular pipe 13 through the inlet holes 14. A cover plate with multiple inlet holes 14 is installed at the lower end of the circular pipe 13 to prevent impurities from surging up the circular pipe 13 and being discharged from the drain pipe 4. This ensures both the vortex's impurity reduction effect and water pressure. Furthermore, the circular pipe 13 allows access to vortices with lower water levels, meaning the cylinder can reach vortices with lower water levels. The depth of the vortex also ensures effective dust suppression.

[0050] The spiral blade 15 pushes the water flow upward into the cover 10 in a timely manner, allowing the water to be quickly discharged from the drain pipe 4. The brush on the spiral blade 15 can clean each water inlet hole 14, removing impurities that clog the water inlet hole 14 and ensuring the water intake effect of the water inlet hole 14. The shape of the water inlet hole 14 restricts the flow direction of the water flow during the upward rotation of the spiral blade 15, preventing the lower water flow from being pushed upward and discharged from the upper water inlet hole 14.

[0051] The lower end of the shaft rotates and passes through the cover plate. The shaft drives the vertical rod 18 to rotate through the cross rod 17. The vertical rod 18 rotates against the surface of the circular tube 13, scraping off the impurities adsorbed on the surface of the circular tube 13 to prevent the impurities from clogging the water inlet hole 14. At the same time, the vertical rod 18 can also scrape and break some of the impurities, breaking them down into smaller pieces and reducing the possibility of clogging the water inlet hole 14.

[0052] During the rotation of the vertical rod 18 around the circular tube 13, the vertical rod 18 itself has a tendency to tilt outward, especially near the upper end of the vertical rod 18, where this tendency is more obvious. This will cause the surface of the vertical rod 18 to be unable to adhere to the surface of the circular tube 13 during rotation, making it difficult to scrape and clean the impurities on the surface of the circular tube 13. Therefore, a ring 19 is provided at the upper end of the vertical rod 18. The ring 19 rotates in the annular groove 20 to constrain the vertical rod 18, so that the vertical rod 18 can stably adhere to the surface of the circular tube 13 during rotation.

[0053] The protective plate 21 installed in the vortex chamber is for the protection of the vortex chamber 2. The water flow washes over the protective plate 21, and the surface of the protective plate 21 is worn. In order to facilitate the replacement of the protective plate 21, the protective plate 21 can be bolted to the inner wall of the vortex chamber 2. There are four vertical rods 18. One pair of vertical rods 18 is equipped with bristles, while the other pair of vertical rods 18 is not equipped with bristles. When the bristles rotate around the circular tube 13, the ends of the bristles can extend to the water inlet hole 14, push the impurities in the water inlet hole 14 out of the water inlet hole 14 and push them into the circular tube 13, thereby improving the cleaning effect of the water inlet hole 14.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A solid-liquid separation type hydrocyclone sand separator, characterized in that: Includes a frame (1), on which a vortex chamber (2) is provided, and an end cap (3) is bolted to the upper end of the vortex chamber (2); an L-shaped drain pipe (4) is fixed to the middle of the end cap (3), and a through hole is opened at the corner of the drain pipe (4), and a drive shaft (5) is rotatably connected in the through hole; a pulley (6) is fixed to the outer ring of the upper end of the drive shaft (5); a horizontal plate (7) is fixed to the upper end of the drive shaft (5); support rods (8) are fixed to both ends of the horizontal plate (7); and the lower end of the support rods (8) is fixed to the end cap (3). The lower end of the drive shaft (5) extends to the vortex chamber (2), and an impeller (9) is fixedly connected to the outer ring of the lower end of the drive shaft (5); the outer ring of the impeller (9) is provided with a circular cover (10), the lower port of the cover (10) faces the lower discharge port (11) of the vortex chamber (2), the upper end of the cover (10) is fixedly connected to the connection position of the drain pipe (4) and the end cover (3), and the upper half of the cover (10) is at the same height as the water inlet pipe (12) connected to the vortex chamber (2); the diameter of the upper port of the cover (10) is smaller than the diameter of its lower port; The lower end of the cover (10) is provided with a circular tube (13). The upper end of the circular tube (13) is flared and connected to the lower port of the cover (10). The lower end of the circular tube (13) extends toward the drain pipe (4), and multiple water inlet holes (14) are opened on the surface of the circular tube (13). The circular tube (13) is provided with a spiral blade (15), and the upper end of the shaft of the spiral blade (15) is fixed to the lower end of the transmission shaft (5); the edge of the spiral blade (15) is provided with a brush. The height of the inlet port of each of the inlet holes (14) is lower than the height of its outlet port, and the lower edge of the outlet port of each inlet hole (14) is inclined upward by a ramp (16). The lower end of the shaft protrudes from the lower end of the circular tube (13), and a cross rod (17) is fixedly connected to the lower end of the shaft. The end of the cross rod (17) protrudes horizontally from the outer surface of the circular tube (13), and a vertical rod (18) is fixedly connected to the end of the cross rod (17). The vertical rod (18) is rotatably mounted on the surface of the circular tube (13).

2. The solid-liquid separation cyclone sand remover according to claim 1, characterized in that: The upper end of the vertical rod (18) is fixedly connected to a ring (19); the outer ring of the upper end of the circular tube (13) is provided with an annular groove (20), and the ring (19) is rotatably connected in the annular groove (20).

3. A solid-liquid separation cyclone sand remover according to claim 2, characterized in that: A protective plate (21) is fixedly attached to the inner wall of the vortex chamber (2), and the protective plate (21) is located on the side of the water inlet pipe (12) in the water inlet direction.

4. A solid-liquid separation cyclone sand separator according to claim 3, characterized in that: Each of the vertical rods (18) also has a brush on the side wall opposite to the surface of the circular tube (13).

5. An operating method for a solid-liquid separation cyclone sand separator, applicable to any one of the solid-liquid separation cyclone sand separators according to claims 1-4, characterized in that: The operation method includes the following steps: S1: The pulley (6) at the upper end of the drive shaft (5) is connected to the pulley (6) of the external motor via a belt. Before the water is injected into the vortex chamber (2), the motor drives the impeller (9) to rotate. S2: Then water is injected into the vortex chamber (2). First, a downward-sloping surrounding fluid is formed along the tangential direction around the inner surface of the vortex chamber (2). The water flows downward in a rotating motion. When the water reaches the cone part of the vortex chamber (2), it turns upward along the axis of the vortex chamber (2) and is finally discharged through the outlet pipe (4). Under the action of the fluid inertial centrifugal force and its own gravity, the dirt falls along the cone wall into the discharge port (11) at the lower end of the vortex chamber (2). S3: A manual butterfly valve is installed at the discharge port (11). When the discharge port (11) is full of impurities, the manual butterfly valve is opened to discharge the impurities.

6. The operating method of a solid-liquid separation hydrocyclone sand remover according to claim 5, characterized in that: The manual butterfly valve housing described in S3 is made of transparent plastic.

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