A centrifugal filter device for construction slurry

Abstract

The application relates to the technical field of mud desanding, and discloses a construction site mud centrifugal pressure filtration device, which comprises a first cross beam, one side of the first cross beam is fixed with a second cross beam, the top of the second cross beam is provided with a pull plate trolley body, one side of the second cross beam is movably provided with a filter plate, the bottom of the first cross beam and the second cross beam is fixed with a supporting leg, one side of the pull plate trolley body is fixed with a moving block, and the bottom of the moving block is movably provided with a micro motor; the micro air cylinder is controlled to be elongated by the control panel, the rack is driven to move downwards, the rack is engaged with the gear, the gear is further driven to rotate, the micro motor is driven to rotate, the micro motor is started to rotate after being rotated to be horizontal, the first rotating shaft is driven to rotate rapidly, the knocking ball touches the filter plate, the mud adhered to the bottom of the filter plate is peeled off, and the effect of removing the large mud and sand adhered to the bottom of the filter plate is achieved.

Description

Technical Field

[0001] This invention relates to the field of mud desanding technology, specifically to a centrifugal filter press device for construction mud. Background Technology

[0002] Mud is a semi-colloidal suspension formed by the dispersion and mixing of tiny clay particles in water. In colloid chemistry, solid clay is called the dispersed phase or solid phase, and water is called the medium or liquid phase. If the solid phase is dispersed into molecules or ions and there is no phase interface between the solid and liquid phases, it is called a true solution, such as a solution of salt dissolved in water. Mud is a commonly used flushing fluid in drilling complex formations and is widely used in the drilling industry. During the processing of mud, it is necessary to remove sand, so mud desanding equipment is required.

[0003] The existing technical solutions mentioned above have the following drawbacks: When performing filter pressing, the existing filter press requires a puller trolley to pull the filter plates apart one by one after the pressing is completed, so that the filtered mud and sand between the two filter plates will fall off automatically due to gravity. Then, some filter plates may not squeeze out the water completely, resulting in mud and sand containing some water and still sticking to the filter plates. At this time, manual cleaning is required. At the same time, although the existing slurry centrifugal filter press has the function of centrifugation before pressing, it uses a filter screen of uniform size for centrifugal filtration. Different application scenarios require different sizes of mud and sand to be filtered. If this cannot be adjusted, incomplete filtration or reduced filtration efficiency will occur. Therefore, we propose a new type of construction site slurry centrifugal filter press. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a construction site mud centrifugal filter press device, which solves the problems in the background technology where a large amount of mud and sand still adheres to the surface of some filter plates, requiring manual cleaning, and where using filter screens of the same size during centrifugation results in incomplete filtration or reduced filtration efficiency.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a construction site mud centrifugal filter press device, comprising a first crossbeam, a second crossbeam fixed to one side of the first crossbeam, a pull plate trolley body disposed on the top of the second crossbeam, a filter plate movably mounted on one side of the second crossbeam, support legs fixed to the bottom of the first and second crossbeams, a movable block fixed to one side of the pull plate trolley body, a micro motor movably mounted at the bottom end of the movable block, a first rotating shaft fixed to the power output end of the micro motor, a first connecting rod movably mounted on the outer wall of the first rotating shaft, a striking ball fixed to the bottom end of the first connecting rod, an air pump fixed to the bottom of one side of the first crossbeam, and a first support rod fixed to the middle of one side of the first crossbeam. A control plate is fixed to one side of the first support rod, and a telescopic cylinder is fixed to the other side of the first support rod. A movable extrusion plate is fixed to the power output end of the telescopic cylinder. A second water guide pipe is fixed through the bottom of one side of the movable extrusion plate. A fixed extrusion plate is fixed to one side of one end of the second crossbeam. A second support rod and a support base are fixed to the top of one end of the second crossbeam. An outer shell is fixed to the top of the support base. A servo motor is fixed to one end of the second support rod. A second rotating shaft is fixed to the power output end of the servo motor. A second connecting rod is fixed to the bottom of the second rotating shaft. A centrifuge cylinder is fixed to the bottom of the second connecting rod. A filter cylinder is rotatably connected inside the centrifuge cylinder. A sand guide pipe is fixed to the bottom of the support base.

[0008] As a further improvement to this technical solution: a sliding groove is provided through one side of the second crossbeam, and a slider is fixed in the middle of one side of the moving block, and the slider is slidably connected to the moving block.

[0009] As a further improvement to this technical solution: a miniature cylinder is fixed in the middle of one side of the moving block, and a rack is fixed to the power output end of the miniature cylinder.

[0010] As a further improvement to this technical solution: a first hinge seat is fixed at the bottom of the moving block, the top of the micro motor is rotatably connected to the bottom of the first hinge seat, a gear is fixed on one side of the connection between the micro motor and the first hinge seat, the gear meshes with the rack, and the number of teeth of the rack is equal to one-quarter of the number of teeth of the gear.

[0011] As a further improvement to this technical solution: a second hinge seat is fixed to the outer wall of the first rotating shaft, the top of the first connecting rod is rotatably connected to the second hinge seat, multiple second hinge seats are provided, and multiple second hinge seats are arranged equidistantly on the outer wall of the first rotating shaft, the striking ball is hollow, the length of the first rotating shaft is equal to the length of the first crossbeam, and the bottom of the first hinge seat is on the same horizontal plane as the middle of the filter plate.

[0012] As a further improvement to this technical solution: both the centrifuge cylinder and the filter cylinder have filter screen holes that are opened through them. There are multiple filter screen holes, and the filter screen holes on the outer wall of the centrifuge cylinder and the filter screen holes on the outer wall of the filter cylinder are arranged in a one-to-one correspondence.

[0013] As a further improvement to this technical solution: a slot is provided on one side of the top of the centrifuge cylinder, and multiple slots are provided. The multiple slots are arranged in an arc shape at equal intervals, and the distance between two slots at both ends is equal to the diameter of the filter screen hole.

[0014] As a further improvement to this technical solution: a locking block is fixed at the top of the filter cylinder, the locking block and the locking groove are engaged with each other, and the filter cylinder is a hollow cylinder.

[0015] As a further improvement to this technical solution: the central axis of the centrifuge cylinder, the central axis of the filter cylinder, and the central axis of the outer shell are collinear, and a discharge trough is provided through the middle of the bottom of both the centrifuge cylinder and the outer shell. The bottom of the discharge trough is sealed to the top of the sand guide pipe, and the horizontal height value of the centrifuge cylinder near the discharge trough is less than the horizontal height value of the centrifuge cylinder away from the discharge trough.

[0016] As a further improvement to this technical solution: a first water guide pipe is provided through and sealed on one side of the outer wall of the outer shell, a regulating valve is provided on the outer wall of the sand guide pipe, and the other end of the sand guide pipe is connected to the fixed extrusion plate.

[0017] (III) Beneficial Effects

[0018] This invention provides a centrifugal filter press device for construction site mud, which has the following beneficial effects:

[0019] 1. This type of construction site mud centrifugal filter press device uses a control panel to control the air pump to extend the micro cylinder, which drives the rack to move downward. The rack meshes with the gear, which in turn drives the gear to rotate, causing the micro motor to rotate. After the micro motor rotates to a horizontal position, it is started to rotate, driving the first rotating shaft to start rotating rapidly. This causes the striking ball to touch the filter plate, thereby removing the mud adhering to the bottom of the filter plate, thus achieving the effect of removing large pieces of mud and sand adhering to the bottom of the filter plate.

[0020] 2. This type of construction site mud centrifugal filter press device changes the overlap area of ​​the filter screen holes between the centrifugal cylinder and the filter cylinder by rotating the filter cylinder, thereby adjusting the pore size of the filter screen holes for filtering sand. When the locking blocks are placed in different slots, the overlap area of ​​the filter screen holes is also different. At the same time, the locking blocks and slots allow the filter cylinder and the centrifugal cylinder to rotate together, thereby achieving rapid adjustment of the filter screen hole diameter for centrifugal filtration, improving the centrifugation effect and efficiency. Attached Figure Description

[0021] Figure 1 This is a front view schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a side view of the overall structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the right side of the structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the pull plate trolley body of the present invention;

[0025] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of part A;

[0026] Figure 6 This is a schematic diagram of the structure of the centrifuge cylinder of the present invention;

[0027] Figure 7 For the present invention Figure 6 An enlarged schematic diagram of the structure of part B.

[0028] In the diagram: 1. First crossbeam; 2. Support leg; 3. Second crossbeam; 4. Slide groove; 5. First support rod; 6. Control panel; 7. Air pump; 8. Telescopic cylinder; 9. Moving extrusion plate; 10. Filter plate; 11. Fixed extrusion plate; 12. Moving block; 13. Pull plate trolley body; 14. Slider; 15. Miniature cylinder; 16. First hinge seat; 17. Gear; 18. Rack; 19. Miniature motor; 20. First rotating shaft; 21. Second hinge seat; 22. First connecting rod; 23. Striking ball; 24. Second support rod; 25. Servo motor; 26. Second rotating shaft; 27. Second connecting rod; 28. Outer shell; 29. ​​Support seat; 30. First water guide pipe; 31. Sand guide pipe; 32. Regulating valve; 33. Second water guide pipe; 34. Centrifuge cylinder; 35. Filter cylinder; 36. Filter screen; 37. Feed trough; 38. Locking block; 39. Locking slot. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0030] Please see Figures 1 to 7This invention provides a technical solution: a construction site mud centrifugal filter press device, comprising a first crossbeam 1, a second crossbeam 3 fixed to one side of the first crossbeam 1, a pull plate trolley body 13 provided on the top of the second crossbeam 3, a filter plate 10 movably installed on one side of the second crossbeam 3, support legs 2 fixed to the bottom of the first crossbeam 1 and the second crossbeam 3, a moving block 12 fixed to one side of the pull plate trolley body 13, a micro motor 19 movably installed at the bottom end of the moving block 12, a first rotating shaft 20 fixed to the power output end of the micro motor 19, a first connecting rod 22 movably installed on the outer wall of the first rotating shaft 20, a striking ball 23 fixed to the bottom end of the first connecting rod 22, an air pump 7 fixed to the bottom of one side of the first crossbeam 1, and a first support rod 5 fixed to the middle of one side of the first crossbeam 1. A control plate 6 is fixed to one side, a telescopic cylinder 8 is fixed to the other side of the first support rod 5, a movable extrusion plate 9 is fixed to the power output end of the telescopic cylinder 8, a second water guide pipe 33 is fixed through the bottom of one side of the movable extrusion plate 9, a fixed extrusion plate 11 is fixed to one side of one end of the second crossbeam 3, a second support rod 24 and a support base 29 are fixed to the top of one end of the second crossbeam 3, an outer shell 28 is fixed to the top of the support base 29, a servo motor 25 is fixed to one end of the second support rod 24, a second rotating shaft 26 is fixed to the power output end of the servo motor 25, a second connecting rod 27 is fixed to the bottom of the second rotating shaft 26, a centrifuge cylinder 34 is fixed to the bottom of the second connecting rod 27, a filter cylinder 35 is rotatably connected inside the centrifuge cylinder 34, and a sand guide pipe 31 is fixed to the bottom of the support base 29.

[0031] The second crossbeam 3 has a through groove 4 on one side, and a slider 14 is fixed in the middle of one side of the moving block 12. The slider 14 is slidably connected to the moving block 12, so that when the pull plate trolley 13 moves, it can drive the moving block 12 to slide on one side of the second crossbeam 3, thereby driving the micro motor 19 at the bottom to move.

[0032] Among them, a miniature cylinder 15 is fixed in the middle of one side of the moving block 12, and a rack 18 is fixed at the power output end of the miniature cylinder 15. When the pull plate trolley 13 pulls the filter plate 10, if the mud and sand do not fall down for a long time, the air pump 7 controls the miniature cylinder 15 to extend by controlling the control board 6.

[0033] The bottom of the movable block 12 is fixed with a first hinge seat 16. The top of the micro motor 19 is rotatably connected to the bottom of the first hinge seat 16. A gear 17 is fixed on one side of the connection between the micro motor 19 and the first hinge seat 16. The gear 17 meshes with the rack 18. When the micro cylinder 15 extends, it drives the rack 18 to move downward. The rack 18 meshes with the gear 17, thereby driving the gear 17 to rotate, so that the micro motor 19 rotates. The number of teeth of the rack 18 is equal to one-quarter of the number of teeth of the gear 17, so that the micro motor 19 can rotate from a vertical position to a horizontal position and then stop.

[0034] The first rotating shaft 20 has a second hinge seat 21 fixed to its outer wall. The top of the first connecting rod 22 is rotatably connected to the second hinge seat 21. Multiple second hinge seats 21 are provided and are arranged equidistantly on the outer wall of the first rotating shaft 20. The striking ball 23 is hollow. The length of the first rotating shaft 20 is equal to the length of the first crossbeam 1. The bottom of the first hinge seat 16 is on the same horizontal plane as the middle of the filter plate 10. After the micro motor 19 rotates to a horizontal position, the micro motor 19 is started to rotate, which drives the first rotating shaft 20 to start rotating rapidly. Affected by centrifugal force, the first connecting rod 22 moves in a direction perpendicular to the first rotating shaft 20, so that the striking ball 23 can touch the filter plate 10, thereby removing the soil adhering to the bottom of the filter plate 10.

[0035] Both the centrifuge cylinder 34 and the filter cylinder 35 have filter screen holes 36 extending through their outer walls. There are multiple filter screen holes 36. The filter screen holes 36 on the outer wall of the centrifuge cylinder 34 and the filter screen holes 36 on the outer wall of the filter cylinder 35 are arranged in a one-to-one correspondence. By rotating the filter cylinder 35, the overlapping area of ​​the filter screen holes 36 between the centrifuge cylinder 34 and the filter cylinder 35 is changed, thereby adjusting the pore size of the filter screen holes 36 for filtering sand.

[0036] The centrifuge cylinder 34 has a slot 39 on one side of its top. Multiple slots 39 are arranged in an arc shape at equal intervals. The distance between two slots 39 at both ends is equal to the diameter of the filter screen holes 36. The filter cylinder 35 has a locking block 38 fixed on its top. The locking block 38 engages with the slots 39. The filter cylinder 35 is a hollow cylinder, so that when the locking block 38 is placed in different slots 39, the overlapping area of ​​the filter screen holes 36 is different. At the same time, the engagement between the locking block 38 and the slots 39 allows the filter cylinder 35 to rotate together with the centrifuge cylinder 34.

[0037] The central axis of the centrifuge cylinder 34, the central axis of the filter cylinder 35, and the central axis of the outer shell 28 are collinear. Both the centrifuge cylinder 34 and the outer shell 28 have a discharge trough 37 through the middle of their bottoms. The bottom of the discharge trough 37 is sealed to the top of the sand guide pipe 31. The horizontal height of the centrifuge cylinder 34 near the discharge trough 37 is less than the horizontal height of the centrifuge cylinder 34 away from the discharge trough 37. By starting the servo motor 25, the second rotating shaft 26 is driven to rotate, which drives the centrifuge cylinder 34 and the filter cylinder 35 to rotate together, and water is discharged from the filter screen holes 36. The discharged water enters the interior of the outer shell 28 and flows out through the first water guide pipe 30. Meanwhile, the soil inside the centrifuge cylinder 34, which still contains water, flows from the discharge trough 37 into the sand guide pipe 31.

[0038] The outer wall of the outer shell 28 is sealed with a first water guide pipe 30, and the outer wall of the sand guide pipe 31 is equipped with a regulating valve 32. The other end of the sand guide pipe 31 is connected to the fixed extrusion plate 11. When the centrifuge cylinder 34 is centrifuging, the regulating valve 32 is closed to prevent excessive water from entering the sand guide pipe 31.

[0039] The working principle of this invention is as follows: First, the filter cylinder 35 is rotated, changing the overlap area of ​​the filter screen holes 36 between the centrifuge cylinder 34 and the filter cylinder 35. When the locking block 38 is placed in different slots 39, the overlap area of ​​the filter screen holes 36 is also different. Simultaneously, through the engagement of the locking block 38 with the slots 39, the filter cylinder 35 can rotate together with the centrifuge cylinder 34. Then, the slurry to be filtered is introduced into the centrifuge cylinder 34. The servo motor 25 is then started, driving the second rotating shaft 26 to rotate, causing the centrifuge cylinder 34 and the filter cylinder 35 to rotate together, thus drawing water through the filter screen holes 36. The water discharged from the outlet enters the outer casing 28 and flows out through the first water guide pipe 30. Meanwhile, the soil inside the centrifuge cylinder 34, still containing moisture, flows from the feed trough 37 into the sand guide pipe 31, and from the sand guide pipe 31 into the middle of the filter plate 10. After the filter plate 10 has absorbed the water for a period of time, the control board 6 controls the air pump 7 to extend the telescopic cylinder 8, which drives the moving extrusion plate 9 to push and extrude multiple filter plates 10 towards the fixed extrusion plate 11. The water after extrusion flows out through the second water guide pipe 33. After extrusion is complete, the telescopic cylinder 8 is shortened, and the pull plate trolley 13 moves the filter plates... 10 is pulled, and slider 14 is slidably connected to moving block 12, so that when the pull plate trolley body 13 moves, it can drive moving block 12 to slide on one side of the second crossbeam 3, thereby driving the micro motor 19 at the bottom to move. When the mud and sand do not fall for a long time, the control board 6 causes the air pump 7 to control the micro cylinder 15 to extend, driving rack 18 to move downward. Rack 18 meshes with gear 17, thereby driving gear 17 to rotate, causing micro motor 19 to rotate. The number of teeth of rack 18 is equal to one-quarter of the number of teeth of gear 17, causing micro motor 19 to rotate. The micro motor 19 can rotate from a vertical position to a horizontal position and then stop. After the micro motor 19 rotates to a horizontal position, it is started to rotate, which drives the first rotating shaft 20 to start rotating rapidly. Under the influence of centrifugal force, the first connecting rod 22 moves in a direction perpendicular to the first rotating shaft 20, so that the striking ball 23 can touch the filter plate 10, thereby removing the mud stuck to the bottom of the filter plate 10. After the mud and sand at the bottom of the filter plate 10 fall off, the micro cylinder 15 is shortened to reset the micro motor 19 and the first rotating shaft 20, and the pull plate trolley body 13 can continue to move.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A centrifugal filter press device for construction mud, comprising a first crossbeam (1), a second crossbeam (3) fixed to one side of the first crossbeam (1), a pull plate trolley body (13) provided on the top of the second crossbeam (3), a filter plate (10) movably installed on one side of the second crossbeam (3), and support legs (2) fixed to the bottom of the first crossbeam (1) and the second crossbeam (3), characterized in that: A movable block (12) is fixed to one side of the pull plate trolley body (13). A micro motor (19) is movably installed at the bottom of the movable block (12). A first rotating shaft (20) is fixed to the power output end of the micro motor (19). A first connecting rod (22) is movably installed on the outer wall of the first rotating shaft (20). A striking ball (23) is fixed to the bottom of the first connecting rod (22). An air pump (7) is fixed to the bottom of one side of the first crossbeam (1). A first support rod (5) is fixed to the middle of one side of the first crossbeam (1). A control plate (6) is fixed to one side of the first support rod (5). A telescopic cylinder (8) is fixed to the other side of the first support rod (5). A movable extrusion plate (9) is fixed to the power output end of the telescopic cylinder (8). A second water pipe (33) is fixed through the bottom of one side of the plate (9). A fixed extrusion plate (11) is fixed on one side of one end of the second crossbeam (3). A second support rod (24) and a support base (29) are fixed at the top of one end of the second crossbeam (3). An outer shell (28) is fixed at the top of the support base (29). A servo motor (25) is fixed at one end of the second support rod (24). A second rotating shaft (26) is fixed at the power output end of the servo motor (25). A second connecting rod (27) is fixed at the bottom of the second rotating shaft (26). A centrifuge cylinder (34) is fixed at the bottom of the second connecting rod (27). A filter cylinder (35) is rotatably connected inside the centrifuge cylinder (34). A sand guide pipe (31) is fixed at the bottom of the support base (29).

2. The construction site mud centrifugal filter press device according to claim 1, characterized in that: A sliding groove (4) is provided through one side of the second crossbeam (3), and a slider (14) is fixed in the middle of one side of the moving block (12), and the slider (14) is slidably connected to the moving block (12).

3. The construction site mud centrifugal filter press device according to claim 1, characterized in that: A miniature cylinder (15) is fixed in the middle of one side of the movable block (12), and a rack (18) is fixed to the power output end of the miniature cylinder (15).

4. The construction site mud centrifugal filter press device according to claim 3, characterized in that: The bottom of the movable block (12) is fixed with a first hinge seat (16). The top of the micro motor (19) is rotatably connected to the bottom of the first hinge seat (16). A gear (17) is fixed on one side of the connection between the micro motor (19) and the first hinge seat (16). The gear (17) meshes with the rack (18). The number of teeth of the rack (18) is equal to one-quarter of the number of teeth of the gear (17).

5. A construction site mud centrifugal filter press device according to claim 4, characterized in that: The outer wall of the first rotating shaft (20) is fixed with a second hinge seat (21). The top of the first connecting rod (22) is rotatably connected to the second hinge seat (21). Multiple second hinge seats (21) are provided. Multiple second hinge seats (21) are arranged equidistantly on the outer wall of the first rotating shaft (20). The striking ball (23) is hollow. The length of the first rotating shaft (20) is equal to the length of the first crossbeam (1). The bottom of the first hinge seat (16) is on the same horizontal plane as the middle of the filter plate (10).

6. The construction site mud centrifugal filter press device according to claim 1, characterized in that: Both the centrifuge tube (34) and the filter tube (35) have filter holes (36) through their outer walls. There are multiple filter holes (36), and the filter holes (36) on the outer wall of the centrifuge tube (34) and the filter holes (36) on the outer wall of the filter tube (35) are arranged in a one-to-one correspondence.

7. A construction site mud centrifugal filter press device according to claim 6, characterized in that: The centrifuge tube (34) has a slot (39) on one side of the top. Multiple slots (39) are provided and are arranged in an arc shape at equal intervals. The distance between two slots (39) at both ends is equal to the diameter of the filter screen hole (36).

8. A construction site mud centrifugal filter press device according to claim 7, characterized in that: The filter cylinder (35) has a locking block (38) fixed at the top, and the locking block (38) and the locking groove (39) are engaged with each other. The filter cylinder (35) is a hollow cylinder.

9. A construction site mud centrifugal filter press device according to claim 1, characterized in that: The central axis of the centrifuge cylinder (34), the central axis of the filter cylinder (35), and the central axis of the outer shell (28) are collinear. A discharge trough (37) is provided through the middle of the bottom of both the centrifuge cylinder (34) and the outer shell (28). The bottom of the discharge trough (37) is sealed to the top of the sand guide pipe (31). The horizontal height of the centrifuge cylinder (34) near the discharge trough (37) is less than the horizontal height of the centrifuge cylinder (34) away from the discharge trough (37).

10. A construction site mud centrifugal filter press device according to claim 1, characterized in that: The outer wall of the outer shell (28) is sealed with a first water guide pipe (30) through one side, and the outer wall of the sand guide pipe (31) is provided with a regulating valve (32). The other end of the sand guide pipe (31) is connected to the fixed extrusion plate (11).

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