A horizontal spiral screen filter centrifuge

Abstract

The invention discloses a horizontal spiral screen filtering centrifuge, which relates to the technical field of filtering centrifuges and comprises a casing, wherein a centrifugal drum is rotatably installed inside the casing, a push rod is rotatably connected to the middle of the centrifugal drum, spiral push plates are fixedly connected to both sides of the push rod, a cavity is provided inside the push rod, a plurality of water collecting holes are provided on both sides of the spiral push plate, and a water collecting pipe is provided at one end of the push rod away from the transmission rod; the invention provides a plurality of water collecting ports in the middle of the spiral push plate to conduct real-time drainage of liquid separated from materials at various positions during the centrifugal filtration process, thereby avoiding the problem of insufficient drainage of liquid caused by drainage of liquid at a single position; at the same time, the rotation of the push rod is used to drive the crushing knife and the docking arc plate provided in the middle to rotate, thereby achieving crushing and stirring of the material, thereby further improving the centrifugal separation efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of filtering centrifuges, in particular to a horizontal spiral screen type filtering centrifuge. Background Art

[0002] The horizontal spiral centrifuge uses the principle of centrifugal sedimentation to separate the drilling suspension. The blades on the spiral pusher push the suspension to the slag outlet for discharge, and the liquid overflows through the overflow hole. This cycle continues to achieve the purpose of continuous separation.

[0003] In the existing filtering centrifuge, when filtering and separating, the discharge hole position of the liquid phase material in the material is single, and it is difficult to ensure stable contact with the discharge hole position during the centrifugal rotation of the material, so that the liquid phase material is difficult to be discharged in time after separation, and there is also a problem of secondary mixing with the solid material during the subsequent material transfer process; at the same time, during the filtering process, due to the action of centrifugal force, the solid materials are pressed against each other. When adjacent solid materials are pressed against each other, it is easy to produce multiple closed cavities, or the liquid phase in the cavity is difficult to be centrifugally separated, which reduces the centrifugal filtering effect. Therefore, it is necessary to propose improvements. Summary of the invention

[0004] The object of the present invention is to provide a horizontal spiral screen filtering centrifuge to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A horizontal spiral screen filtering centrifuge comprises a casing, a driving motor is fixedly mounted at one end of the casing, a centrifugal drum is rotatably mounted inside the casing, a push rod is rotatably connected to the middle of the centrifugal drum, a transmission member for driving the centrifugal drum and the push rod to rotate is fixedly mounted at the output end of the driving motor, the transmission member comprises a driving shaft, a plurality of supporting gears are fixedly connected to the middle of the driving shaft, a plurality of docking gear rings are fixedly connected to the outer wall of the centrifugal drum, and the plurality of supporting gears are respectively meshed and connected with the plurality of docking gear rings; The end of the push rod close to the driving motor is fixedly connected to a transmission shaft, the middle part of the transmission shaft is fixedly connected to a transmission gear, the end of the driving shaft close to the driving gear is fixedly connected to the driving gear, the transmission gear is meshed with the driving gear, both sides of the push rod are fixedly connected to spiral push plates, a cavity is opened inside the push rod, a plurality of water collecting holes are opened on both sides of the spiral push plate, a water collecting cavity is opened in the middle part of the spiral push plate, the plurality of water collecting holes are connected to the water collecting cavity, and the bottom end of the water collecting cavity is connected to the cavity;

[0007] One end of the push rod away from the transmission rod is rotatably connected to a closing block, one side of the closing block is fixedly connected to an outer sleeve, a water collecting pipe and a vent pipe are arranged inside the outer sleeve, one end of the water collecting pipe passes through the bottom of the closing block and is fixedly connected to a water collecting plate, one side of the water collecting arc plate is provided with a plurality of openings, and the bottom of the water collecting arc plate is slidably matched with the inner wall of the cavity;

[0008] A feed hopper is fixedly connected to one side of the top of the casing, a feed port is provided on the top of the centrifugal drum, an inlet cover is rotatably connected to the inner wall of the feed port through a torsion spring, a pull ring is fixedly connected to the top of the inlet cover, a clamping groove is provided on one side of the feed port, an extension portion is fixedly provided on one side of the inlet cover, and the extension portion is clamped and connected with the clamping groove under the action of the torsion spring;

[0009] One end of the outer wall of the centrifugal drum is set as a screen segment, and the screen segment includes equidistantly arranged screen meshes embedded on the centrifugal drum, a receiving groove is set below the screen segment, and both sides of the inner wall of the receiving groove are inclined, a water pipe is fixedly connected to the bottom of the inner wall of the receiving groove, and a water baffle is fixedly connected to one side of the receiving groove, a cover plate is set above the screen segment, and an inspection port is opened on the other side of the top of the casing, and the top of the inspection port is set corresponding to the top of the cover plate;

[0010] A slag discharge port is provided at one end of the centrifugal drum away from the driving motor, one end of the inner wall of the casing is fixedly connected to a supporting platform, one side of the inner wall of the supporting platform is rotatably connected to the centrifugal drum, the other side of the inner wall of the supporting platform is open and inclined, a slag discharge port is provided at the bottom of the other end of the casing, and a slag discharge trough is fixedly connected to one side of the slag discharge port.

[0011] As a further solution of the present invention: a material dividing section is provided in the middle of the pushing rod, and a plurality of equiangularly arranged crushing knives are fixedly connected to both sides of the material dividing section, and one end of the plurality of crushing knives is fixedly connected to a docking arc plate, and the curvature of the docking arc plate is consistent with the curvature of the inner cavity of the centrifugal drum.

[0012] As a further solution of the present invention: a filter adjustment mechanism is provided on one side of the casing, and the filter adjustment mechanism includes a filter box, one end of the outer sleeve is fixedly connected to the filter box, a water pump is fixedly installed on the inner wall of the filter box, the water inlet end of the water pump is fixedly connected to the filter frame through a connecting pipe, and a filter net is slidably connected to the middle of the filter frame; a filtered water diverter pipe is fixedly connected to the top of the filter frame, a filtered water diverter valve is fixedly installed in the middle of the filtered water diverter pipe, and one end of the filtered water diverter pipe is fixedly connected to one side of the water collecting pipe.

[0013] As a further solution of the present invention: a fan is fixedly installed on one side of the inner wall of the filter box, the output end of the fan is fixedly connected to the diverter plate, one end of the ventilation pipe is fixedly connected to the diverter plate, and the middle part of the ventilation pipe is fixedly connected to a ventilation regulating valve, the other end of the ventilation pipe extends into the cavity through the closing plate, and a plurality of ventilation ports are opened in the middle of the material distribution section.

[0014] As a further solution of the present invention: one end of the water collecting pipe away from the pushing rod is fixedly connected to the diverter plate, and a backwash regulating valve is fixedly installed on the water collecting pipe, and the installation position of the backwash regulating valve is located between the connection of the filtered water diverter pipe and the diverter plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention, by opening a plurality of water collection ports in the middle of the spiral pusher plate, can conduct real-time drainage of the liquid separated from the material at various positions during the centrifugal filtration process, thereby avoiding the problem of insufficient liquid drainage caused by draining the liquid at a single position, and also enables the centrifuged liquid to be separated from the solid in time, thereby preventing the problem of secondary fusion of solid and liquid in the subsequent pushing process;

[0016] At the same time, by dividing the spiral push plate into two sections and utilizing the rotation of the push rod to drive the crushing knife and the docking arc plate arranged in the middle to rotate, the material can be crushed and dispersed, and the closed cavity formed by the accumulation and shielding of the materials to hinder the separation of the liquid can be prevented, thereby further improving the centrifugal separation efficiency. In combination with the arrangement of structures such as ventilation pipes and ventilation ports, the material can be blown and separated in the material separation section to improve the effect of material dispersion and crushing.

[0017] The transmission member of the present invention is meshed and connected with a plurality of docking gear rings through a plurality of supporting gears, so that the centrifugal drum has a plurality of stable transmission contact points, thereby making the driving stability of the centrifugal drum higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A perspective view of the present invention;

[0019] Figure 2 is a cross-sectional view of the housing of the present invention;

[0020] Figure 3 It is a cross-sectional view of the spiral push plate of the present invention;

[0021] Figure 4 It is a cross-sectional view of the push rod of the present invention;

[0022] Figure 5 It is a cross-sectional view of the filter screen of the present invention.

[0023] In the figure: 1. casing; 2. driving motor; 3. driving shaft; 4. driving gear; 5. transmission gear; 6. transmission shaft; 7. docking gear ring; 8. supporting gear; 9. pushing rod; 10. centrifugal drum; 11. spiral pushing plate; 12. water collecting hole; 13. feeding hopper; 14. inlet cover plate; 15. crushing knife; 16. docking arc plate; 17. vent; 18. water baffle; 19. screen section; 20. receiving groove; 21. water guide pipe; 22. slag trough; 23. outer sleeve; 24. supporting platform; 25. slag discharge port; 26. cover plate; 27. ventilation pipe; 28. water collecting pipe; 29. ​​filtered water diversion valve; 30. ventilation regulating valve; 31. backwash regulating valve; 32. filter frame; 33. fan; 34. water pump; 35. filter box; 36. supporting seat; 37. closing block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-Figure 5 In an embodiment of the present invention, a horizontal spiral screen filtering centrifuge comprises a casing 1, a driving motor 2 is fixedly mounted at one end of the casing 1, a centrifugal drum 10 is rotatably mounted inside the casing 1, a push rod 9 is rotatably connected to the middle of the centrifugal drum 10, a transmission member for driving the centrifugal drum 10 and the push rod 9 to rotate is fixedly mounted at the output end of the driving motor 2, the transmission member comprises a driving shaft 3, a plurality of supporting gears 8 are fixedly connected to the middle of the driving shaft 3, a plurality of docking gear rings 7 are fixedly connected to the outer wall of the centrifugal drum 10, and a plurality of supporting gears 8 are respectively meshed and connected with a plurality of docking gear rings 7, so that the centrifugal drum 10 has a plurality of stable transmission contact points, so that the driving stability of the centrifugal drum 10 is higher; in a specific implementation, a supporting seat 36 can be arranged between the supporting gears 8, and the driving shaft 3 is supported by the supporting seat 36 to improve the stability of the overall operation of the transmission member;

[0026] The end of the push rod 9 close to the driving motor 2 is fixedly connected to the transmission shaft 6, the middle part of the transmission shaft 6 is fixedly connected to the transmission gear 5, the end of the driving shaft 3 close to the driving gear 4 is fixedly connected to the driving gear 4, and the transmission gear 5 is meshed with the driving gear 4; the diameter of the transmission gear 5 is larger than the diameter of the driving gear 4, and the gear ratio of the driving gear 4 to the transmission gear 5 is smaller than the gear ratio of the supporting gear 8 to the docking gear ring 7, so that the rotation speed of the push rod 9 and the spiral push plate 11 thereon is lower than the rotation speed of the centrifugal drum 10, ensuring the normal and stable operation of the centrifugal filtration operation;

[0027] Both sides of the push rod 9 are fixedly connected with a spiral push plate 11, a cavity is opened inside the push rod 9, and a plurality of water collecting holes 12 are opened on both sides of the spiral push plate 11, and the inner walls of the plurality of water collecting holes 12 are fixedly connected with material blocking springs, and a water collecting cavity is opened in the middle of the spiral push plate 11, and the plurality of water collecting holes 12 are connected with the water collecting cavity, and the bottom end of the water collecting cavity is connected with the cavity; one end of the push rod 9 away from the transmission rod is rotatably connected with a closing block 37, and one side of the closing block 37 is fixedly connected with an outer sleeve 23, and a water collecting pipe 28 and a vent pipe 27 are arranged inside the outer sleeve 23, and one end of the water collecting pipe 28 passes through the bottom of the closing block 37. The spiral pusher plate 11 is fixedly connected to the water collecting plate, and one side of the water collecting arc plate is provided with a plurality of through openings, and the bottom of the water collecting arc plate is slidably matched with the inner wall of the cavity; by providing a plurality of water collecting ports in the middle of the spiral pusher plate 11, the liquid separated from the materials at various positions during the centrifugal filtration process is discharged in real time, thereby avoiding the problem of insufficient liquid discharge caused by the liquid discharge from a single position, and also enabling the centrifuged liquid to be separated from the solid in time, thereby preventing the problem of secondary fusion of solid and liquid in the subsequent pushing process; by providing a cavity inside the pusher rod 9, and cooperating with the water collecting pipe 28 and other structures, the liquid drawn in from the water collecting port is sent out for treatment;

[0028] A material dividing section is provided in the middle of the push rod 9, and a plurality of crushing knives 15 arranged at equal angles are fixedly connected on both sides of the material dividing section, and a docking arc plate 16 is fixedly connected to one end of the plurality of crushing knives 15, and the curvature of the docking arc plate 16 is consistent with the curvature of the inner cavity of the centrifugal drum 10. The rotation of the push rod 9 drives the crushing knives 15 and the docking arc plate 16 to rotate, thereby crushing and stirring the materials, preventing the closed cavity formed by the accumulation and shielding of the materials from hindering the separation of the liquid, and further improving the centrifugal separation efficiency.

[0029] In order to realize the feeding of the casing 1, a feeding hopper 13 is fixedly connected to one side of the top of the casing 1, a feeding port is provided at the top of the centrifugal drum 10, the inner wall of the feeding port is rotatably connected to an inlet cover plate 14 through a torsion spring, a pull ring is fixedly connected to the top of the inlet cover plate 14, a clamping groove is provided on one side of the feeding port, and an extension part is fixedly provided on one side of the inlet cover plate 14. In the natural state, the torsion spring makes the extension part engage and connect with the clamping groove; in the working state, the feeding cover plate is supported by the push-pushing cooperation between the extension part and the clamping groove to prevent it from rotating outward under the push-pushing action of centrifugal force or materials;

[0030] One end of the outer wall of the centrifugal drum 10 is set as a screen segment 19, and the screen segment 19 includes sieving nets embedded in the centrifugal drum 10 and arranged at equal intervals. A receiving groove 20 is set below the screen segment 19, and both sides of the inner wall of the receiving groove 20 are inclined. A water guide pipe 21 is fixedly connected to the bottom of the inner wall of the receiving groove 20. In order to prevent the material liquid from splashing onto the inner wall of the casing 1, a water baffle 18 is fixedly connected to one side of the receiving groove 20. A cover plate 26 is provided above the screen segment 19. In order to facilitate the maintenance of the cover plate 26 and the screen segment 19 and other structures, an inspection port is opened on the other side of the top of the casing 1, and the top of the inspection port is corresponding to the top of the cover plate 26.

[0031] A slag discharge port 25 is provided at one end of the centrifugal drum 10 away from the driving motor 2. To improve the rotation stability of the centrifugal drum 10, one end of the inner wall of the casing 1 is fixedly connected to a supporting platform 24, and one side of the inner wall of the supporting platform 24 is rotatably connected to the centrifugal drum 10. To facilitate the discharge of solid waste, the other side of the inner wall of the supporting platform 24 is open and inclined. A slag discharge port is provided at the bottom of the other end of the casing 1, and a slag discharge trough 22 is fixedly connected to one side of the slag discharge port.

[0032] A filter adjustment mechanism is provided on one side of the casing 1, and the filter adjustment mechanism includes a filter box 35. One end of the outer sleeve 23 is fixedly connected to the filter box 35, and a water pump 34 is fixedly installed on the inner wall of the filter box 35. In order to filter the separated liquid, the water inlet end of the water pump 34 is fixedly connected to the filter frame 32 through a connecting pipe, and a filter screen is slidably connected to the middle of the filter frame 32. After working for a period of time, the filter screen is slidably removed to clean it; a filtered water diverter pipe is fixedly connected to the top of the filter frame 32, and a filtered water diverter valve 29 is fixedly installed in the middle of the filtered water diverter pipe, one end of the filtered water diverter pipe is fixedly connected to one side of the water collecting pipe 28, and the water outlet end of the water pump 34 is fixedly connected to the outlet pipe.

[0033] A fan 33 is fixedly installed on one side of the inner wall of the filter box 35, and a diverter disk is fixedly connected to the output end of the fan 33. One end of the vent pipe 27 is fixedly connected to the diverter disk, and a vent regulating valve 30 is fixedly connected to the middle of the vent pipe 27. The other end of the vent pipe 27 extends into the cavity through the closing plate. A plurality of vents 17 are provided in the middle of the material distribution section. By arranging structures such as the vent pipe 27 and the vent 17, the material is blown and separated in the material distribution section, thereby improving the effect of dispersing and crushing the material.

[0034] In order to clean the water collection hole 12 and avoid the water collection hole 12 being blocked by materials and affecting subsequent cleaning work, the end of the water collection pipe 28 away from the pushing rod 9 is fixedly connected to the diverter plate, and a backwash regulating valve 31 is fixedly installed on the water collection pipe 28. The installation position of the backwash regulating valve 31 is located between the connection of the filtered water diverter pipe and the diverter plate. The airflow of the fan 33 is sent into the cavity through the water collection pipe 28 through the backwash regulating valve 31, and then discharged from the vent 17.

[0035] When the present invention is in use, the material to be filtered is fed into the feed hopper 13, and the feed cover plate is pushed to rotate under the action of gravity. If necessary, the feed cover plate can be manually pushed to turn over after the auxiliary feeding, so that the material enters the centrifugal drum 10 from the feed port, and is started by the drive motor 2 to drive the drive shaft 3 to rotate, and then the rotation of several supporting gears 8 drives the docking gear ring 7 to rotate, so as to drive the centrifugal drum 10, and utilize the forest to separate the solid and liquid phases of the material. At the same time, the rotation of the drive shaft 3 drives the drive gear 4 and the transmission gear 5 to rotate, and drives the push rod 9 to rotate, so that the two spiral push plates 11 rotate, and push the material toward the side of the slag outlet. At the same time as the centrifugal filtration operation, the water pump 34 is started, the water filter regulating valve is opened, and the water collecting pipe 28 is used to pump water, so that the water separated in the material has several water collecting holes 12 on the spiral push plate 11 Enter the water collecting cavity, and then pass through the filter screen along the cavity water collecting pipe 28, enter the water pump 34, and then be discharged from the outlet pipe;

[0036] When the material passes through the material separation section, the material is dispersed and crushed by the beating and stirring action of the crushing knife 15. At the same time, the fan 33 is started, the ventilation regulating valve 30 is opened, and the air flow sent by the ventilation pipe 27 is ejected through the ventilation port 17, driving the material to turn over, which is convenient for the solid-liquid separation of the material.

[0037] Then the material continues to shift under the push of the spiral push plate 11. When the material passes through the screen section 19, under the action of centrifugal force, the residual moisture passes through the mesh of the screening net, and is blocked by the cover plate 26 and the water-blocking plate 18 and other structures to flow into the receiving groove 20, and then is sent out by the water pipe 21. The remaining solid material waste passes through the slag discharge port 25, and is discharged from the slag discharge groove 22 after being guided by the support platform 24. After the material processing is completed, the ventilation regulating valve 30 and the water filter regulating valve can be closed, and the sealing backwash regulating valve 31 can be opened. The air flow is sent out by the water collecting pipe 28 and sent out by a number of water collecting holes 12 to achieve the cleaning of the residue in the water collecting holes 12.

[0038] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A horizontal spiral screen filter centrifuge, characterized in that: The invention comprises a casing (1), one end of which is fixedly mounted with a driving motor (2), a centrifugal drum (10) is rotatably mounted inside the casing (1), a transmission member for driving the centrifugal drum (10) and a push rod (9) to rotate is fixedly mounted at the output end of the driving motor (2), a push rod (9) is rotatably connected to the middle of the centrifugal drum (10), both sides of the push rod (9) are provided with spiral push plates (11), and the push rod (9) A cavity is provided inside, a plurality of water collecting holes (12) are provided on both sides of the spiral push plate (11), a water collecting cavity is provided in the middle of the spiral push plate (11), and the plurality of water collecting holes (12) are connected to the cavity through the water collecting cavity, and a water collecting pipe (28) is provided at one end of the push rod (9) away from the transmission rod; a material dividing section is provided in the middle of the push rod (9), and a plurality of crushing knives (15) arranged at equal angles are fixedly connected on both sides of the material dividing section.

2. A horizontal spiral screen filter centrifuge according to claim 1, characterized in that: The transmission member comprises a driving shaft (3), a plurality of supporting gears (8) are fixedly connected to the middle of the driving shaft (3), a plurality of docking gear rings (7) are fixedly connected to the outer wall of the centrifugal drum (10), and the plurality of supporting gears (8) are respectively meshed and connected with the plurality of docking gear rings (7); the end of the push rod (9) close to the driving motor (2) is fixedly connected to the driving shaft (6), the middle of the driving shaft (6) is fixedly connected to the driving gear (5), and the end of the driving shaft (3) close to the driving gear (4) is fixedly connected to the driving gear (4), and the driving gear (5) is meshed and connected with the driving gear (4).

3. A horizontal spiral screen filter centrifuge according to claim 1, characterized in that: A filter adjustment mechanism is provided on one side of the casing (1), and the filter adjustment mechanism comprises a filter box (35), a water pump (34) is fixedly mounted on the inner wall of the filter box (35), the water inlet end of the water pump (34) is connected to a filter frame (32), and a filter screen is slidably connected to the middle of the filter frame (32); a filtered water diverter pipe is fixedly connected to the top of the filter frame (32), a filtered water diverter valve (29) is fixedly mounted in the middle of the filtered water diverter pipe, and one end of the filtered water diverter pipe is fixedly connected to one side of a water collecting pipe (28).

4. A horizontal spiral screen filter centrifuge according to claim 3, characterized in that: A fan (33) is fixedly installed on one side of the inner wall of the filter box (35), and a diverter disk is fixedly connected to the output end of the fan (33), and a vent pipe (27) is fixedly connected to one side of the diverter disk. A vent regulating valve (30) is fixedly connected to the middle of the vent pipe (27), and the vent pipe (27) passes through the closing block (37) and extends into the cavity. A plurality of vents (17) are provided in the middle of the material distribution section. The end of the water collecting pipe (28) away from the pushing rod (9) is fixedly connected to the diverter disk, and a backwash regulating valve (31) is fixedly installed on the water collecting pipe (28).

5. A horizontal spiral screen filter centrifuge according to claim 1, characterized in that: A feed port is provided at the top of the centrifugal drum (10), an inlet cover plate (14) is rotatably connected to the inner wall of the feed port, a clamping groove is provided on one side of the feed port, and an extension portion is fixedly provided on one side of the inlet cover plate (14).

6. A horizontal spiral screen filter centrifuge according to claim 1, characterized in that: One end of the outer wall of the centrifugal drum (10) is provided as a screen segment (19), the screen segment (19) comprises a screening net, a receiving groove (20) is provided below the screen segment (19), a water pipe (21) is fixedly connected to the bottom of the inner wall of the receiving groove (20), a water baffle (18) is fixedly connected to one side of the receiving groove (20), and a cover plate (26) is provided above the screen segment (19).

7. A horizontal spiral screen filter centrifuge according to claim 1, characterized in that: One end of the inner wall of the casing (1) is fixedly connected to a supporting platform (24), one side of the inner wall of the supporting platform (24) is rotatably connected to the centrifugal drum (10), and the other side of the inner wall of the supporting platform (24) is inclined.

8. A horizontal spiral screen filter centrifuge according to claim 1, characterized in that: The centrifugal drum (10) has a slag discharge port (25) at one end away from the drive motor (2), and the casing (1) has a slag discharge port at the bottom of the other end, with one side of the slag discharge port being fixedly connected to a slag discharge trough (22).

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