Horizontal screw screen centrifuge

Abstract

The present application relates to the field of centrifuge, specifically to horizontal spiral screen centrifuge, horizontal spiral screen centrifuge, including outer casing, the bottom of outer casing is provided with bottom plate, the bottom plate is provided with discharge mechanism, discharge mechanism is connected on differential mechanism, differential mechanism rotation drive discharge mechanism separates material;Discharge mechanism is connected with pressure relief mechanism, when discharge mechanism extrudes solid phase material, pressure relief mechanism is lifted and the inside of discharge mechanism is discharged from pressure relief mechanism;Discharge mechanism is connected with traction mechanism, the inside of outer casing is provided with cleaning mechanism, cleaning mechanism is arranged above discharge mechanism;Pressure relief mechanism moves drive traction mechanism and drives cleaning mechanism to move and open multiple cleaning mechanisms.

Description

Technical Field

[0001] This invention relates to the field of centrifuges, specifically to a horizontal spiral screen centrifuge. Background Technology

[0002] The horizontal spiral screen centrifuge is a continuously operating filtration centrifuge. It features high processing capacity, low energy consumption, stable performance, and excellent separation effect. It can continuously feed, wash, dewater, and discharge suspensions while running at full speed. It is currently one of the most innovative, technologically advanced, efficient, and low-consumption solid-liquid separation machines available both domestically and internationally. This model is widely used in the chemical, food, salt, mining, and pharmaceutical industries.

[0003] Existing centrifuges use a screw-feed system where the material is propelled forward by the screw's rotation. Because the screw is located in the center of the centrifuge drum, it easily traps a significant amount of moisture when moving the solid material. Furthermore, in horizontal centrifuges, the limited size of the discharge port makes it easy for the pipes to become clogged during solid material discharge. When the pipes are clogged, the screen installed on the drum becomes blocked, thus reducing the centrifuge's separation efficiency. Summary of the Invention

[0004] To address the problems in the prior art, this invention provides a horizontal spiral screen centrifuge.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows: a horizontal spiral screen centrifuge, including an outer shell, a bottom plate at the bottom of the outer shell, a liquid outlet and a material outlet at the bottom of the outer shell, a material discharge mechanism on the bottom plate, the material discharge mechanism being connected to a transmission mechanism, the transmission mechanism rotating to drive the material discharge mechanism to separate materials; a pressure relief mechanism is connected to the material discharge mechanism, when the material discharge mechanism squeezes the solid phase material, it lifts the pressure relief mechanism and discharges the material from the interior of the material discharge mechanism; a traction mechanism is connected to the material discharge mechanism, a cleaning mechanism is provided inside the outer shell, the cleaning mechanism being located above the material discharge mechanism; the movement of the pressure relief mechanism drives the traction mechanism to move the cleaning mechanism and open multiple cleaning mechanisms.

[0006] Preferably, the transmission mechanism includes a differential disposed inside the housing, a housing for protecting the differential, a drum pulley and a spiral pulley disposed on the differential, a belt respectively fitted on the drum pulley and the spiral pulley, the belt being fitted on a motor, the motor being disposed on a base plate, a rotary joint disposed on the differential, and a cover fitted on the drum pulley and the spiral pulley on the base plate.

[0007] Preferably, the discharge mechanism includes a drum connected to a drum pulley and a spiral plate connected to a spiral pulley. A screen is provided inside the drum, and the spiral plate is located inside the screen. A feed pipe is provided on the outer shell, and a feed inlet is provided inside the spiral plate.

[0008] Preferably, the pressure relief mechanism includes a push plate disposed at the tail end of the spiral plate, a push rod disposed on the surface of the push plate, a sealing plate disposed on the feed pipe, the sealing plate extending into the feed pipe to reduce the feed speed, a support rod disposed on the push plate, and a second elastic element sleeved on the support rod, the second elastic element being used to push the push plate to reset.

[0009] Preferably, the traction mechanism includes a pull rope disposed on the push plate, a traction rod fixed to the end of the pull rope, the traction rod including a first pull rod and a second pull rod, the first pull rod being connected to the cleaning mechanism, and the second pull rod being provided with a movable pin; a top rod is connected to the end of the second pull rod via the movable pin, the top rod having a notch, a fixing pin being provided on the inner wall of the outer shell, a connecting plate being provided on the outer shell, a sliding groove being provided on the connecting plate, the fixing pin sliding inside the sliding groove; the end of the top rod away from the second pull rod is slidably disposed on the cleaning mechanism; the cleaning mechanism slides on the sliding groove, the end of the traction rod is provided with a pull rope, the pull rope moving with the movement of the push plate, and the cleaning mechanism is provided with a first elastic element, the first elastic element being connected to the outer shell.

[0010] Preferably, the cleaning mechanism includes a valve body connected to a first pull rod, an inlet pipe inside the valve body, a spiral tube at the bottom of the inlet pipe, a spray plate connected to the bottom of the spiral tube, a groove on the spray plate, and a push rod sliding inside the groove; the spray plate is provided with multiple spray heads.

[0011] Preferably, the cleaning mechanism further includes a first water tank disposed inside the valve body and a second water tank located on both sides of the first water tank. A rotating shaft is rotatably disposed inside the first water tank, and two squeezing blocks are disposed on the rotating shaft. A stop block is disposed on one side of each squeezing block and is disposed on the rotating shaft. A water inlet is disposed between the first water tank and the second water tank. A baffle is rotatably connected inside the water inlet and is fixed inside the second water tank. The stop block squeezes the baffle against the limiting block to close the water inlet.

[0012] Preferably, the cleaning mechanism further includes a transmission assembly connected to the first pull rod, the transmission assembly being used to drive the rotating shaft to rotate, the transmission assembly including a movable rod rotatably connected to the first pull rod, the end of the movable rod being rotatably provided with a connecting rod, the connecting rod being fixed to the rotating shaft.

[0013] Preferably, the liquid outlet is located below the drum, and the discharge outlet is located below the feed pipe; a lifting ring is provided on the outer shell, an end cap is provided on the outer shell, a sight glass is provided on the end cap, anti-vibration feet are provided at the bottom of the outer shell, and an air filter is provided on the outer shell.

[0014] Beneficial effects:

[0015] The transmission mechanism drives the discharge mechanism connected to it, causing the liquid material to separate from the liquid material through centrifugal force and be discharged from the outlet. The rotation of the discharge mechanism also discharges the solid material from the outlet. When separating solid and liquid materials, if the transmission mechanism is rotated at a high speed to accelerate separation, more solid material may separate. This excess solid material can easily cause blockage when discharged through the outlet. The pressure relief mechanism allows a large amount of solid material to be discharged, preventing blockage. Material blockage inside the discharge mechanism, and the pressure relief mechanism can also block the feeding speed of the feed pipe, thus relieving pressure. When the pressure relief mechanism moves, it drives the traction mechanism to move, which in turn pulls the cleaning mechanism closer to the discharge mechanism. This increases the impact force of the liquid sprayed by the cleaning mechanism onto the discharge mechanism, clearing the discharge mechanism and facilitating the separation of liquid materials. As the traction mechanism approaches the cleaning mechanism, it increases the coverage area of ​​the discharge mechanism and also increases the spray volume of the cleaning mechanism, resulting in a better unblocking effect on the discharge mechanism. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a partial cross-sectional view of the present invention;

[0019] Figure 3 for Figure 2 Enlarged structural diagram at point A in the diagram;

[0020] Figure 4 This is a schematic diagram of the internal structure of the present invention;

[0021] Figure 5 for Figure 4Enlarged structural diagram at point B in the diagram;

[0022] Figure 6 for Figure 4 Enlarged structural diagram at point C;

[0023] Figure 7 This is a schematic diagram of the discharge mechanism of the present invention;

[0024] Figure 8 This is a schematic diagram of the differential connection of the present invention;

[0025] Figure 9 This is a schematic diagram of the cleaning mechanism of the present invention;

[0026] In the diagram: 1. Outer shell; 11. Anti-vibration foot; 13. Box; 14. Air filter; 15. Lifting ring; 16. Liquid outlet; 17. Material outlet; 18. Sight glass window; 19. Base plate; 100. Cover; 101. End cap; 2. Transmission mechanism; 20. Differential; 21. Rotary joint; 22. Drum pulley; 23. Spiral pulley; 24. Belt; 25. Motor; 3. Discharge mechanism; 31. Drum; 32. Screen; 33. Spiral plate; 34. Feed pipe; 35. Feed inlet; 4. Traction mechanism; 40. Connecting plate; 41. Traction rod; 411. First pull rod; 41 2. Second pull rod; 42. Movable pin; 43. Fixed pin; 44. Top rod; 45. Groove; 46. First elastic element; 47. Slide groove; 48. Pull rope; 5. Cleaning mechanism; 51. Valve body; 52. Water inlet pipe; 53. Spiral pipe; 54. Spray plate; 55. Abutment groove; 56. First water tank; 57. Baffle; 58. Rotating shaft; 59. Squeezing block; 510. Abutment block; 511. Limiting block; 512. Movable rod; 513. Connecting rod; 514. Second water tank; 6. Pressure relief mechanism; 61. Push rod; 62. Sealing plate; 63. Support rod; 64. Second elastic element; 65. Push plate. Detailed Implementation

[0027] 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.

[0028] In one embodiment, please refer to the appendix to the specification. Figure 1-9 As shown, the horizontal spiral screen centrifuge of the present invention includes an outer shell 1, a bottom plate 19 is provided at the bottom of the outer shell 1, a liquid outlet 16 and a material outlet 17 are provided at the bottom of the outer shell 1, a material discharge mechanism 3 is provided on the bottom plate 19, the material discharge mechanism 3 is connected to the transmission mechanism 2, and the transmission mechanism 2 drives the material discharge mechanism 3 to separate the materials by rotating.

[0029] The discharge mechanism 3 is connected to a pressure relief mechanism 6. When the discharge mechanism 3 squeezes the solid material, it lifts the pressure relief mechanism 6 and discharges the material from the inside of the discharge mechanism 3 through the pressure relief mechanism 6. The discharge mechanism 3 is connected to a traction mechanism 4. A cleaning mechanism 5 is provided inside the outer shell 1. The cleaning mechanism 5 is located above the discharge mechanism 3. The pressure relief mechanism 6 moves to drive the traction mechanism 4 to move the cleaning mechanism 5 and open multiple cleaning mechanisms 5.

[0030] The transmission mechanism 2 drives the discharge mechanism 3 connected to it, causing the discharge mechanism 3 to separate the liquid material from its interior through centrifugal force and discharge it from the liquid outlet 16. The discharge mechanism 3 rotates to discharge the solid material from the discharge outlet 17. When separating solid and liquid materials, if the transmission mechanism 2 rotates at a high speed to accelerate separation, more solid material will be separated. When there is an excess of solid material, it can easily cause blockage when discharged through the discharge outlet 17. The pressure relief mechanism 6 can discharge a large amount of solid material, thus preventing blockage. The pressure relief mechanism 6 is inserted inside the discharge mechanism 3 and can also block the feeding speed of the feed pipe 34, thus relieving pressure. When the pressure relief mechanism 6 moves, it will drive the traction mechanism 4 to move, and the traction mechanism 4 will drive the cleaning mechanism 5 to move closer to the discharge mechanism 3, thereby increasing the impact force of the liquid sprayed by the cleaning mechanism 5 on the discharge mechanism 3, clearing the discharge mechanism 3, and facilitating the separation of liquid phase materials by the discharge mechanism 3. As the traction mechanism 4 moves closer to the cleaning mechanism 5, it can increase the coverage area of ​​the discharge mechanism 3 and also increase the spray volume of the cleaning mechanism 5, making the clearing effect of the discharge mechanism 3 better.

[0031] In one embodiment, please refer to the appendix to the specification. Figure 1-4 As shown in Figure 7, the transmission mechanism 2 includes a differential 20 disposed inside the outer casing 1. The differential 20 is provided with a housing 13 for protecting the differential 20. The differential 20 is provided with a drum pulley 22 and a spiral pulley 23. Belts 24 are respectively fitted on the drum pulley 22 and the spiral pulley 23. The belts 24 are fitted on a motor 25. The motor 25 is disposed on a base plate 19. The differential 20 is provided with a rotary joint 21. The base plate 19 is provided with a cover 100 fitted on the drum pulley 22 and the spiral pulley 23.

[0032] The discharge mechanism 3 includes a drum connected to the drum pulley 22 and a spiral plate 33 connected to the spiral pulley 23. The drum 31 is equipped with a screen 32 inside, and the spiral plate 33 is installed inside the screen 32. The outer shell 1 is equipped with a feed pipe 34, and the spiral plate 33 is equipped with a feed pipe 34 inside. The top of the feed pipe 34 is equipped with a feed inlet 35.

[0033] The motor 25, when turned, simultaneously drives the drum 31 and the spiral plate 33 to rotate. After the motor 25 is started and the drum 31 is running normally, the liquid material enters the inner cavity of the spiral plate 33 through the feed pipe 34. Under the action of centrifugal force, the liquid material flows evenly into the inner cavity of the drum 31 and is discharged through the holes of the screen 32 and the outer drum 31, while the solid material is trapped inside the screen 32. Since the motor 25 is connected to the drum pulley 22 and the spiral pulley 23 of different diameters via the belt 24, there is a certain speed difference between the spiral plate 33 and the drum 31. The solid material is pushed one by one by the spiral plate 33 towards the large end of the drum 31 and discharged from the discharge port 17.

[0034] In one embodiment, please refer to the appendix to the specification. Figure 1-2 As shown in Figures 4 and 6, the pressure relief mechanism 6 includes a push plate 65 disposed at the tail end of the spiral plate 33. A push rod 61 is disposed on the surface of the push plate 65. A sealing plate 62 is disposed on the feed pipe 34. The sealing plate 62 extends into the feed pipe 34 to reduce the feed speed. A support rod 63 is disposed on the push plate 65. A second elastic element 64 is sleeved on the support rod 63. The second elastic element 64 is used to push the push plate 65 to reset.

[0035] When the spiral plate 33 squeezes the solid material onto the push plate 65, the solid material is squeezed by the spiral plate 33, causing the push plate 65 to move under pressure. When the push plate 65 moves, it squeezes the second elastic element 64. The support rod 63 is telescopic. When the second elastic element 64 is compressed, the support rod 63 contracts synchronously. When the push rod 61 moves, it pushes the sealing plate 62 to move inside the feed pipe 34. When the sealing plate 62 moves inside the feed pipe 34, it seals the connection with the pipe wall of the feed pipe 34. At this time, the movement of the sealing plate 62 inside the feed pipe 34 reduces the flow rate inside the feed pipe 34 and reduces the feeding speed of the feed pipe 34, thus achieving the effect of relieving pressure on the discharge mechanism 3.

[0036] In one embodiment, please refer to the appendix to the specification. Figure 1-5As shown, the traction mechanism 4 includes a pull rope 48 mounted on the push plate 65. A traction rod 41 is fixed to the end of the pull rope 48. The traction rod 41 includes a first pull rod 411 and a second pull rod 412. The first pull rod 411 is connected to the cleaning mechanism 5, and the second pull rod 412 is provided with a movable pin 42. A top rod 44 is connected to the end of the second pull rod 412 via the movable pin 42. The top rod 44 has a notch 45. A fixing pin 43 is provided on the inner wall of the outer casing 1. The fixing pin 43 slides inside the slide groove 47; the end of the top rod 44 away from the second pull rod 412 is slidably disposed on the cleaning mechanism 5; a connecting plate 40 is provided on the outer shell 1, and a slide groove 47 is provided on the connecting plate 40, the cleaning mechanism 5 slides on the slide groove 47, a pull rope 48 is provided on the end of the traction rod 41, the pull rope 48 moves with the movement of the push plate 65, and a first elastic element 46 is provided on the cleaning mechanism 5, the first elastic element 46 being connected to the outer shell 1.

[0037] The pull rope 48 moves synchronously with the push plate 65, thereby driving the traction rod 41 to move. When the traction rod 41 moves, it drives the first pull rod 411 and the second pull rod 412 to move synchronously. The first pull rod 411 pulls the cleaning mechanism 5, driving the cleaning mechanism 5 to move towards the drum 31. The sliding groove 47 can support and guide the movement of the cleaning mechanism 5. When the second pull rod 412 pulls the top rod 44, the bottom of the top rod 44 abuts against the groove 55, and the top rod 44 rotates around the fixed pin 43. When the top rod 44 rotates, it pushes the cleaning mechanism 5 to move downward along the direction of the sliding groove 47. At this time, the first elastic element 46 is stretched. When the pull rope 48 does not pull the push plate 65, the first elastic element 46 resets, thereby pulling the water spray plate 54 to reset. During the reset process of the water spray plate 54, the traction rod 41 is reset.

[0038] In one embodiment, please refer to the appendix to the specification. Figure 1-5 As shown in Figure 9, the cleaning mechanism 5 includes a valve body 51 connected to the first pull rod 411. A water inlet pipe 52 is provided inside the valve body 51. A spiral tube 53 is provided at the bottom of the water inlet pipe 52. A water spray plate 54 is connected to the bottom of the spiral tube 53. A groove 55 is provided on the water spray plate 54. The push rod 44 slides inside the groove 55. A plurality of water spray heads are provided on the water spray plate 54.

[0039] The cleaning mechanism 5 further includes a first water tank 56 disposed inside the valve body 51 and a second water tank 514 located on both sides of the first water tank 56. A rotating shaft 58 is rotatably disposed inside the first water tank 56. Two squeezing blocks 59 are disposed on the rotating shaft 58. A stop block 510 is disposed on one side of the squeezing block 59. The stop block 510 is disposed on the rotating shaft 58. A water inlet channel is disposed between the first water tank 56 and the second water tank 514. A baffle 57 is rotatably connected inside the water inlet channel. The baffle 57 is fixed inside the second water tank 514. The stop block 510 squeezes the baffle 57 onto the limiting block 511 to close the water inlet channel.

[0040] The cleaning mechanism 5 also includes a transmission assembly connected to the first pull rod 411. The transmission assembly is used to drive the rotating shaft 58 to rotate. The transmission assembly includes a movable rod 512 rotatably connected to the first pull rod 411. A connecting rod 513 is rotatably provided at the end of the movable rod 512. The connecting rod 513 is fixed to the rotating shaft 58.

[0041] When the first pull rod 411 moves, it drives the rotating shaft 58 to rotate. The rotation of the rotating shaft 58 drives the squeezing block 59 to rotate synchronously. The squeezing block 59 squeezes against the side of the baffle 57. The baffle 57 rotates inside the water inlet tank and forms a gap between itself and the water inlet tank for water flow, allowing water to enter the second water tank 514 located on both sides of the first water tank 56. This enables the water spray head connected to the first water tank 56 and the second water tank 514 to spray water. The greater the distance the first pull rod 411 moves, the greater the angle of rotation of the rotating shaft 58. Since the squeezing block 59 has an arc-shaped structure, the baffle 57 is squeezed by the squeezing block. 59 During the squeezing process, the angle of rotation around the water inlet gradually increases, thereby increasing the amount of water entering the second water tank 514 from the first water tank 56. When the rotating shaft 58 resets, it drives the abutment block 510 to move synchronously. When the rotating shaft 58 reaches the initial position, the abutment block 510 will just touch the side of the baffle 57. The limiting plate abuts the other side of the baffle 57, sealing the baffle 57 onto the water inlet, preventing water from the first water tank 56 from entering the second water tank 514. At this time, the cleaning mechanism 5 only sprays water from the multiple spray nozzles below the first water tank 56. When the pressure relief mechanism 6 starts to release pressure, the water spray plate 54 will approach the rotating drum 31. At the same time, the first water tank 56 and the second water tank 514 are connected, so that multiple water spray heads below the first water tank 56 and the second water tank 514 spray water synchronously to wash the rotating drum 31 and the screen 32. Because the spray distance is reduced, the pressure of the water spray on the rotating drum 31 and the screen 32 is increased. Moreover, the water spray head changes from one row to three rows, which makes the cleaning effect of the rotating drum 31 better and the anti-clogging effect better.

[0042] In one embodiment, please refer to the appendix to the specification. Figure 1-4As shown in Figure 8, the liquid outlet 16 is located below the drum 31, and the discharge outlet 17 is located below the feed pipe 34; a lifting ring 15 is provided on the outer shell 1, an end cap 101 is provided on the outer shell 1, a viewing window 18 is provided on the end cap 101, an anti-vibration foot 11 is provided at the bottom of the outer shell 1, and an air filter 14 is provided on the outer shell 1.

[0043] 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 protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A horizontal spiral screen centrifuge, comprising an outer shell (1), a bottom plate (19) provided at the bottom of the outer shell (1), and a liquid outlet (16) and a material outlet (17) provided at the bottom of the outer shell (1), characterized in that, The bottom plate (19) is provided with a discharge mechanism (3), which is connected to the transmission mechanism (2). The transmission mechanism (2) rotates to drive the discharge mechanism (3) to separate the material. The discharge mechanism (3) is connected to a pressure relief mechanism (6). When the discharge mechanism (3) squeezes the solid material, it lifts the pressure relief mechanism (6) and discharges the material from the inside of the discharge mechanism (3) through the pressure relief mechanism (6). The discharge mechanism (3) is connected to a traction mechanism (4). A cleaning mechanism (5) is provided inside the outer shell (1). The cleaning mechanism (5) is located above the discharge mechanism (3). The pressure relief mechanism (6) moves to drive the traction mechanism (4), which in turn moves the cleaning mechanism (5) and opens multiple cleaning mechanisms (5). The transmission mechanism (2) includes a differential (20) disposed inside the outer casing (1), and the differential (20) is provided with a drum pulley (22) and a spiral pulley (23). The discharge mechanism (3) includes a drum (31) connected to a drum pulley (22) and a spiral plate (33) connected to a spiral pulley (23). A screen (32) is installed inside the drum (31), and the spiral plate (33) is installed inside the screen (32). A feed pipe (34) is installed on the outer casing (1), and the feed pipe (34) is installed inside the spiral plate (33). A feed inlet (35) is installed at the top of the feed pipe (34). The pressure relief mechanism... The mechanism (6) includes a push plate (65) disposed at the tail end of the spiral plate (33), a push rod (61) disposed on the surface of the push plate (65), a sealing plate (62) disposed on the feed pipe (34), the sealing plate (62) extending into the feed pipe (34) to reduce the feed speed, a support rod (63) disposed on the push plate (65), a second elastic element (64) sleeved on the support rod (63), the second elastic element (64) being used to push the push plate (65) to reset.

2. The horizontal spiral screen centrifuge according to claim 1, characterized in that, The differential (20) is provided with a housing (13) for protecting the differential (20). The drum pulley (22) and the spiral pulley (23) are respectively fitted with belts (24). The belts (24) are fitted on the motor (25). The motor (25) is set on the base plate (19). The differential (20) is provided with a rotary joint (21). The base plate (19) is provided with a cover (100) fitted on the drum pulley (22) and the spiral pulley (23).

3. The horizontal spiral screen centrifuge according to claim 2, characterized in that, The traction mechanism (4) includes a pull rope (48) mounted on the push plate (65). A traction rod (41) is fixed to the end of the pull rope (48). The traction rod (41) includes a first pull rod (411) and a second pull rod (412). The first pull rod (411) is connected to the cleaning mechanism (5). A movable pin (42) is provided on the second pull rod (412). A top rod (44) is connected to the end of the second pull rod (412) via the movable pin (42). A notch (45) is provided on the top rod (44). A fixing pin (43) is provided on the inner wall of the outer shell (1). A connecting plate (40) is provided on the outer shell (1), and a groove (47) is provided on the connecting plate (40). The fixing pin (43) slides inside the groove (47). The end of the top rod (44) away from the second pull rod (412) is slidably disposed on the cleaning mechanism (5). The cleaning mechanism (5) slides on the groove (47). A pull rope (48) is provided on the end of the traction rod (41). The pull rope (48) moves with the movement of the push plate (65). A first elastic element (46) is provided on the cleaning mechanism (5). The first elastic element (46) is connected to the outer shell (1).

4. The horizontal spiral screen centrifuge according to claim 3, characterized in that, The cleaning mechanism (5) includes a valve body (51) connected to a first pull rod (411). A water inlet pipe (52) is provided inside the valve body (51). A spiral pipe (53) is provided at the bottom of the water inlet pipe (52). A water spray plate (54) is connected to the bottom of the spiral pipe (53). A groove (55) is provided on the water spray plate (54). The push rod (44) slides inside the groove (55). Multiple water spray heads are provided on the water spray plate (54).

5. The horizontal spiral screen centrifuge according to claim 4, characterized in that, The cleaning mechanism (5) further includes a first water tank (56) disposed inside the valve body (51) and a second water tank (514) located on both sides of the first water tank (56). The first water tank (56) is rotatably provided with a rotating shaft (58). Two squeezing blocks (59) are provided on the rotating shaft (58). A stop block (510) is provided on one side of the squeezing block (59). The stop block (510) is disposed on the rotating shaft (58). A water inlet is provided between the first water tank (56) and the second water tank (514). A baffle (57) is rotatably connected inside the water inlet. The baffle (57) is fixed inside the second water tank (514). The stop block (510) squeezes the baffle (57) onto the limiting block (511) to close the water inlet.

6. The horizontal spiral screen centrifuge according to claim 5, characterized in that, The cleaning mechanism (5) further includes a transmission assembly connected to the first pull rod (411). The transmission assembly is used to drive the rotating shaft (58) to rotate. The transmission assembly includes a movable rod (512) rotatably connected to the first pull rod (411). A connecting rod (513) is rotatably provided at the end of the movable rod (512). The connecting rod (513) is fixed to the rotating shaft (58).

7. The horizontal spiral screen centrifuge according to claim 1 or 6, characterized in that, The liquid outlet (16) is located below the drum (31), and the discharge outlet (17) is located below the feed pipe (34); a lifting ring (15) is provided on the outer shell (1), an end cap (101) is provided on the outer shell (1), a viewing window (18) is provided on the end cap (101), an anti-vibration foot (11) is provided at the bottom of the outer shell (1), and an air filter (14) is provided on the outer shell (1).

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