A waste water-based drilling mud filter press treatment device and process

Abstract

The present invention relates to the technical field of drilling mud filter pressure treatment, and more specifically, the present invention provides a waste water-based drilling mud filter pressure treatment device and process. The present invention provides a filter assembly, a feeding funnel and a recovery trolley, and first inputs the drilling mud into multiple filter assemblies through the water inlet end to fill the interior of the filter assembly, and squeezes the filter assembly through the extrusion cylinder to dehydrate the mud inside the multiple filter assemblies and form a filter cake. Subsequently, the filter assemblies are opened in sequence to recover the fallen filter cake, and the filter cake falls into the feeding funnel and the recovery trolley, which is convenient and fast to collect the filter cake, and is more efficient. In addition, a cleaning mechanism and an adjusting mechanism are provided inside a single filter assembly, which can realize shaking cleaning from the inside of the filter plate, and evenly apply force to the filter plate, making it easier to clean the attached filter cake residue, with high efficiency and good cleaning effect.

Description

Technical Field

[0001] The present invention relates to the technical field of drilling mud filter press treatment, and more particularly to a waste water-based drilling mud filter press treatment device and process. Background Art

[0002] Waste water-based drilling mud is a specific type of waste generated during drilling operations. Drilling mud is a liquid mixture used during drilling operations to maintain borehole stability and reduce wear on the drill bit and drill pipe. It is typically composed of water, clay, fillers, and chemicals. Water-based drilling mud is a type of drilling mud primarily composed of water, supplemented with additives such as clay and polymers to adjust the mud's properties.

[0003] During drilling operations, as the well deepens, the mud is continuously recycled, but it also carries away rock debris, sand, and other impurities from the formation. The mixture of these impurities and additives, coupled with prolonged use and physical and chemical reactions, can cause the mud's performance to gradually deteriorate, making it no longer suitable for drilling and drilling operations. At this point, mud with deteriorated performance that is difficult to restore or ineffective to treat is considered waste water-based drilling mud. There are various methods available for treating waste water-based drilling mud, including landfilling, mechanical dehydration, and incineration. Mechanical dehydration uses a filter press to squeeze and dehydrate the mud, followed by recycling the filter plates produced after filtration.

[0004] A filter press is a mechanical device that uses a special filter medium to apply pressure to a liquid, allowing it to seep out. It is a commonly used solid-liquid separation device. It was first used in chemical production in the early 18th century and is still widely used in the chemical, pharmaceutical, metallurgical, dye, food, brewing, ceramic, and environmental protection industries. The filter plates of a filter press offer stable performance, easy and safe operation, and labor-saving operation. The metal cylinder is made of seamless steel pipe and precision-cast plastic-steel filter plates, making it resistant to high temperatures and high pressures and durable.

[0005] However, there is a problem in the use of the current mud filter press equipment. That is, during the dehydration process, if the mud water content is high, the mud will adhere to the outside of the filter plate. At present, to address this problem, an external operating trolley of the equipment is usually used for cleaning, or an external cleaning device is used to clean a single filter plate. In this way, the water flow will re-enter the subsequent recovery process along with the mud residue, and dehydration will be required again, which reduces the efficiency. Secondly, there is also an automatic plate pulling device, which can pull the filter plates apart one by one, and during the pulling process, the filter plates are shaken by shaking the hanging ears on both sides to shake off the filter residue. However, in this operation method, the shaking force does not directly act on the filter plate, resulting in a poor shaking-off effect. Another basic method is manual shoveling, but due to the size and height of the equipment, manual shoveling is inconvenient and less efficient. For this reason, we disclose a waste water-based drilling mud filter press treatment device and process to solve the problems raised in the above background technology. Summary of the Invention

[0006] The object of the present invention is to provide a waste water-based drilling mud filter press treatment device and process to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a waste water-based drilling mud filter press treatment device, comprising a support frame and vertical plates symmetrically installed at both ends of the support frame, two lap rods symmetrically installed between the two vertical plates, and multiple filter assemblies evenly distributed and overlapped on the upper ends of the two lap rods;

[0008] A feeding hopper is also installed at the upper end of the support frame, and a recycling trolley is also provided below the feeding hopper;

[0009] An extrusion cylinder is installed on the side of the vertical plate on either side, and the other end of the extrusion cylinder is connected to a push plate, and rolling bearings are installed on both sides of the push plate. The rolling bearings are slidably installed above the lap rod, and the push plate can be squeezed with the side of the filter assembly;

[0010] The other side vertical plate is provided with a water inlet and a water outlet, and the water inlet can be connected to the filter assembly. An anti-slip rod is also installed on the overlapping rod. Setting rods are also provided on both sides of a single filter assembly, and the setting rods are overlapped on the anti-slip rod.

[0011] A further technical solution of the present application is: the filter assembly includes an outer plate and filter plates installed on both end surfaces of the outer plate, the mounting rod is connected to both sides of the outer plate, and an installation cavity is formed between the outer plate and the filter plate, two water inlets are provided on both filter plates, and an inner through pipe is connected between each of the water inlets, two cleaning mechanisms are symmetrically arranged between the two inner through pipes, and both sides of the cleaning mechanism are in contact with the inner side of the filter plate, the inner side of the outer plate is also connected to an adjustment mechanism, and both cleaning mechanisms are connected to the adjustment mechanism.

[0012] A further technical solution of the present application is as follows: a single cleaning mechanism comprises a mounting plate, a driving inner gear ring and a support rod, wherein the driving inner gear ring is mounted on the upper end of the mounting plate;

[0013] There are two support rods, which are mirror-symmetrically installed on both sides of the driving inner gear ring. A cross bar is connected between the top ends of the two support rods. The side surfaces and both ends of the cross bar are open structures, and a swing block is slidably connected in the cross bar. A first driving motor is installed at the axis of the driving inner gear ring below the mounting plate, and the output shaft of the first driving motor is connected to one end of the first connecting rod, and the other end of the first connecting rod is connected to the rotating tooth. One end of the second connecting rod is also rotatably connected above the rotating tooth, and the other end of the second connecting rod is connected to the side of the swing block. Two swing rods are also slidably connected inside the cross bar, and the ends of the two swing rods close to each other are connected to the swing block, and the ends of the two swing rods away from each other are connected to cleaning rods, and the cleaning rods can contact the inner side of the filter plate.

[0014] A further technical solution of the present application is that the center position of the upper end of the crossbar is further connected to one end of a connecting rod;

[0015] The adjusting mechanism includes a screw groove opened on the top surface of the outer plate, a second drive motor and an adjusting screw installed at the bottom of the screw groove, two groups of threads of the same length are symmetrically opened on the outside of the adjusting screw, and the thread directions of the two groups of threads are opposite, one end of the adjusting screw is connected to the power output shaft of the second drive motor, and the outer sides of the two groups of threads are each connected to one end of an adjusting rod, and the other end of a single adjusting rod is connected to the other end of the connecting rod at the corresponding position.

[0016] A further technical solution of the present application is that limiting grooves are symmetrically provided on both sides of the screw groove, and a single adjusting rod is symmetrically provided with limiting rods on both sides of the screw groove, and the other ends of the limiting rods are slidably connected to the inside of the limiting grooves.

[0017] A further technical solution of the present application is that a single filter plate is symmetrically provided with a stabilizing groove on the inner side, and stabilizing rods are connected to the positions corresponding to the stabilizing grooves on both sides of the mounting plate, and the ends of the stabilizing rods are slidably connected to the stabilizing grooves.

[0018] A further technical solution of the present application is that an extension portion is further provided on the inner side of the two end surfaces of the outer plate, and the end of the extension portion can be buckled inwardly on the outer side of the eaves of the filter plate. An inner stop strip is provided at the inner eaves of the two end surfaces of the outer plate, and the filter plate can be in contact with the inner stop strip. An embedded portion is provided at the opening of the water inlet located on the inner side of the filter plate.

[0019] A further technical solution of the present application is that the length of the combination of the two swing arms is greater than the length of the cross bar, and the length of the combination of the two swing arms is less than the distance between the two filter plates.

[0020] A waste water-based drilling mud filter press treatment process is applied to the waste water-based drilling mud filter press treatment device. The waste water-based drilling mud filter press treatment process comprises the following steps:

[0021] S1. Sewage is fed into the device through the water inlet, circulated and filled into multiple filter components, and the extrusion cylinder squeezes the push plate to squeeze the multiple filter components to filter water;

[0022] S2. Filtration is completed, and the filtered water is discharged from the water outlet and recovered by the extrusion cylinder. Multiple filter components are opened in sequence, and the filter cake falls off and falls into the discharge funnel. During the falling process, it contacts the discharge funnel and becomes loose, and finally falls into the recovery trolley;

[0023] S3. Clean the filter assembly. The internal cleaning mechanism of the filter assembly will shake off the filter cake residue attached to the outside of the filter plate, and it will fall into the discharge funnel and finally fall into the recovery trolley. The filtration is completed.

[0024] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0025] The present invention provides a filter assembly, a discharge funnel and a recovery trolley. First, drilling mud is input into multiple filter assemblies through the water inlet end to fill the interior of the filter assembly, and the filter assembly is squeezed by the extrusion cylinder to dehydrate the mud inside the multiple filter assemblies to form a filter cake. Subsequently, the filter assemblies are opened in sequence to recover the fallen filter cake, and the filter cake falls into the discharge funnel and the recovery trolley, which is convenient and fast to collect the filter cake with higher efficiency. In addition, a cleaning mechanism and an adjustment mechanism are provided inside a single filter assembly, which can realize shaking cleaning from the inside of the filter plate, and evenly apply force to the filter plate, making it easier to clean the attached filter cake residue, with high efficiency and good cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the three-dimensional structure of the filter press treatment device for waste water-based drilling mud provided by the present invention;

[0027] Figure 2 Schematic diagram of the three-dimensional structure of the filter assembly in the present invention;

[0028] Figure 3 Schematic diagram of the structure inside the filter assembly of the present invention;

[0029] Figure 4 Schematic diagram of the structure of the adjustment mechanism in the filter assembly of the present invention;

[0030] Figure 5 Schematic diagram of the structure of the cleaning mechanism in the filter assembly of the present invention;

[0031] Figure 6 Schematic diagram of the structure of the cleaning mechanism in the filter assembly of the present invention;

[0032] Figure 7 It is a schematic structural diagram of the inner side of the filter plate in the filter assembly of the present invention.

[0033] Explanation of the numbers in the schematic diagram:

[0034] 1. Support frame; 2. Recovery trolley; 3. Feeding hopper; 4. Rolling bearing; 5. Overlap rod; 6. Anti-slip rod; 7. Extrusion cylinder; 8. Vertical plate; 9. Push plate; 10. Filter assembly; 11. Water inlet; 12. Erection rod; 13. Outer plate; 14. Water inlet; 15. Filter plate; 16. Extension; 17. Internal pipe; 18. Cleaning mechanism; 19. Adjustment mechanism; 20. Limiting groove; 21. Screw groove 22. Adjusting screw; 23. Inner stop bar; 24. Limiting rod; 25. Adjusting rod; 26. Stabilizing groove; 27. Cleaning rod; 28. Support rod; 29. Swinging rod; 30. Cross bar; 31. Connecting rod; 32. Second connecting rod; 33. Driving inner gear ring; 34. First connecting rod; 35. Mounting plate; 36. Swinging block; 37. Rotating gear; 38. First driving motor; 39. Stabilizing rod; 40. Second driving motor. DETAILED DESCRIPTION

[0035] The following will be combined with the accompanying 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 making creative efforts are within the scope of protection of the present invention. The present invention is further described below in conjunction with the embodiments.

[0036] See also Figures 1 to 7 In one embodiment of the present application, a waste water-based drilling mud filter press treatment device includes a support frame 1 and vertical plates 8 symmetrically installed at both ends of the support frame 1, two bridging rods 5 are symmetrically installed between the two vertical plates 8, and multiple filter assemblies 10 are evenly distributed and overlapped on the upper ends of the two bridging rods 5;

[0037] A feeding hopper 3 is also installed at the upper end of the support frame 1, and a recycling trolley 2 is also provided below the feeding hopper 3;

[0038] An extrusion cylinder 7 is installed on the side of the vertical plate 8 on either side, and the other end of the extrusion cylinder 7 is connected to a push plate 9, and rolling bearings 4 are installed on both sides of the push plate 9. The rolling bearings 4 are slidably installed above the overlap rod 5, and the push plate 9 can be squeezed with the side of the filter assembly 10;

[0039] The other side vertical plate 8 is provided with an inlet end 11 and a water outlet end, and the water inlet end 11 can be connected to the filter assembly 10. An anti-slip rod 6 is also installed on the overlapping rod 5. A single filter assembly 10 is also provided with a setting rod 12 on both sides, and the setting rod 12 is overlapped on the anti-slip rod 6.

[0040] This embodiment is implemented as follows: in actual use, sewage is fed into the device through the water inlet 11, circulated and filled into the multiple filter components 10, and the extrusion cylinder 7 squeezes the push plate 9 to squeeze the multiple filter components 10 to filter water;

[0041] After the filtration is completed, the filtered water is discharged from the water outlet and recovered by the extrusion cylinder 7. The multiple filter components 10 are opened in sequence, and the filter cake falls off and falls into the discharge funnel 3. During the falling process, it contacts the discharge funnel 3 and becomes loose, and finally falls into the recovery trolley 2;

[0042] The filter assembly 10 is then cleaned, and the filter cake residue attached to the outside of the filter plate 15 is shaken off by the cleaning mechanism 18 inside the filter assembly 10, and falls into the discharge funnel 3 and finally falls into the recovery trolley 2, and the filtration is completed.

[0043] See also Figures 1 to 7 The filter assembly 10 includes an outer plate 13 and filter plates 15 installed on both end surfaces of the outer plate 13. The mounting rod 12 is connected to both sides of the outer plate 13. A mounting cavity is formed between the outer plate 13 and the filter plate 15. Two water inlets 14 are provided on each of the two filter plates 15, and an internal through-tube 17 is connected between each of the two water inlets 14. Two cleaning mechanisms 18 are symmetrically arranged between the two internal through-tubes 17, and both sides of the cleaning mechanism 18 are in contact with the inner side of the filter plate 15. An adjusting mechanism 19 is also connected to the inner side of the outer plate 13, and the two cleaning mechanisms 18 are connected to the adjusting mechanism 19.

[0044] The single cleaning mechanism 18 includes a mounting plate 35, a driving inner gear ring 33 and a support rod 28, wherein the driving inner gear ring 33 is mounted on the upper end of the mounting plate 35;

[0045] There are two support rods 28, which are installed on both sides of the driving inner gear ring 33 in a mirror-symmetrical manner. A cross bar 30 is connected between the tops of the two support rods 28. The side and both ends of the cross bar 30 are open structures, and a swing block 36 is slidably connected inside the cross bar 30. A first driving motor 38 is installed below the mounting plate 35 at the axis of the driving inner gear ring 33. The output shaft of the first driving motor 38 is connected to one end of the first connecting rod 34, and the other end of the first connecting rod 34 is connected to the rotating tooth 37. One end of the second connecting rod 32 is also rotatably connected above the rotating tooth 37, and the other end of the second connecting rod 32 is connected to the side of the swing block 36. Two swing rods 29 are also slidably connected inside the cross bar 30, and the ends of the two swing rods 29 that are close to each other are connected to the swing block 36, and the ends of the two swing rods 29 that are away from each other are connected to the cleaning rod 27, and the cleaning rod 27 can contact the inner side of the filter plate 15.

[0046] Furthermore, the combined length of the two swinging rods 29 is greater than the length of the cross bar 30 , and the combined length of the two swinging rods 29 is less than the distance between the two filter plates 15 .

[0047] Furthermore, an extension portion 16 is provided on the inner side of the two end surfaces of the outer plate 13, and the end of the extension portion 16 can be buckled inwardly on the outer side of the eaves of the filter plate 15. An inner baffle 23 is provided at the inner eaves of the two end surfaces of the outer plate 13, and the filter plate 15 can be in contact with the inner baffle 23. The water inlet 14 is located at the opening on the inner side of the filter plate 15 and is provided with an embedded portion.

[0048] This embodiment is achieved as follows: when the filter assembly 10 is cleaned, it is mainly operated by the cleaning mechanism 18, and the cleaning mechanism 18 reciprocates and shakes the two sides of the filter plate 15 to achieve vibration of the filter plate 15, so as to achieve cleaning. The specific operation is to drive the first connecting rod 34 to rotate by the first driving motor 38, and the rotating teeth 37 at the end of the first connecting rod 34 will engage and rotate inside the driving inner gear ring 33. At the same time, the rotating teeth 37 will drive the second connecting rod 32 to follow the movement, and the reciprocating swing of the second connecting rod 32 will drive the swing block 36 connected to its end to move back and forth inside the cross bar 30. At the same time, the swing block 36 drives the swing rods 29 connected on both sides to move back and forth, so as to achieve cleaning. The movement of the cleaning rod 27 causes the cleaning rod 27 to reciprocate and contact the inner wall of the filter plate 15, thereby shaking the filter plate 15 and applying force directly to the filter plate 15, thereby shaking off the filter cake residue. The combined length of the two swinging rods 29 is greater than the length of the cross bar 30, and the combined length of the two swinging rods 29 is less than the distance between the two filter plates 15. The purpose is to prevent the swinging rod 29 from getting stuck when moving unilaterally toward the end of the cross bar 30 during the swinging process, and the distance less than the distance between the two filter plates 15 is to ensure that the swinging rod 29 can move between the two filter plates 15, and the situation that the swing amplitude is too small to clean the filter plates 15 will not occur.

[0049] An extension 16 is further provided on the inner side of the two end surfaces of the outer plate 13, and the end of the extension 16 can be buckled inwardly to the outer side of the eaves of the filter plate 15. An inner stop 23 is provided at the inner eaves of the two end surfaces of the outer plate 13, and the filter plate 15 can conflict with the inner stop 23. For the installation of the filter plate 15, the end of the extension 16 and the inner stop 23 provided at the inner eaves of the outer plate 13 cooperate with each other to achieve buckling. The gap between the end of the extension 16 and the inner stop 23 is slightly larger than the thickness of a single filter plate 15, ensuring that a gap is reserved for squeezing when a single filter plate 15 is installed. The end of the extension 16 can be buckled inwardly to the outer side of the eaves of the filter plate 15 to ensure that the filter plate 15 will not fall off during the cleaning and pushing process of the cleaning mechanism 18.

[0050] See also Figure 5 As a preferred embodiment of the present application, one end of a connecting rod 31 is further connected to the center of the upper end of the cross bar 30;

[0051] The adjusting mechanism 19 includes a screw groove 21 opened on the inner top surface of the outer plate 13, a second drive motor 40 and an adjusting screw 22 installed at the bottom of the screw groove 21, and two groups of threads of the same length are symmetrically opened on the outside of the adjusting screw 22, and the thread directions of the two groups of threads are opposite. One end of the adjusting screw 22 is connected to the power output shaft of the second drive motor 40, and the outer sides of the two groups of threads are each connected to one end of the adjusting rod 25, and the other end of a single adjusting rod 25 is connected to the other end of the connecting rod 31 at the corresponding position.

[0052] Furthermore, the limiting grooves 20 are symmetrically provided on both sides of the screw groove 21 , and the limiting rods 24 are symmetrically provided on both sides of the single adjusting rod 25 , and the other ends of the limiting rods 24 are slidably connected to the limiting grooves 20 .

[0053] Furthermore, a single filter plate 15 is symmetrically provided with a stabilizing groove 26 on its inner side, and stabilizing rods 39 are connected to the positions of the stabilizing grooves 26 on both sides of the mounting plate 35 , and the ends of the stabilizing rods 39 are slidably connected to the stabilizing grooves 26 .

[0054] This embodiment is achieved in that during the operation of the cleaning mechanism 18, in order to expand the cleaning area, the adjusting mechanism 19 can be operated, and the second drive motor 40 can be operated to drive the adjusting screw 22 to rotate, thereby realizing the rotation of the adjusting screw 22 and driving the two adjusting rods 25 connected to the outside to rotate. The internal part of the single adjusting rod 25 in the screw groove 21 is also connected to the limit rod 24, and the limit rod 24 is slidably placed in the limit groove 20 to limit the rotation, so that the single adjusting rod 25 can be stably moved up and down on the outside of the adjusting screw 22, thereby driving the connecting rod 31 connected to the other end of the adjusting rod 25 to follow and move. Since two groups of threads with opposite thread directions are provided on the outside of the adjusting screw 22, the two adjusting rods 25 can be moved in opposite directions, thereby driving the two adjusting rods 25 to move away from or close to each other, driving the two cleaning mechanisms 18 to displace, and the displacement trajectory covers the area of the filter plate 15, thereby improving the cleaning effect.

[0055] See also Figures 1 to 6 A waste water-based drilling mud filter press treatment process is applied to the waste water-based drilling mud filter press treatment device. The waste water-based drilling mud filter press treatment process comprises the following steps:

[0056] S1. Sewage is fed into the device through the water inlet 11, circulated and filled into the multiple filter components 10, and the extrusion cylinder 7 squeezes the push plate 9 to squeeze the multiple filter components 10 to filter water;

[0057] S2, filtration is completed, the filtered water is discharged from the water outlet, and at the same time recovered by the extrusion cylinder 7, multiple filter components 10 are opened in sequence, the filter cake falls off and falls into the discharge funnel 3, and during the falling process, it contacts the discharge funnel 3 and becomes loose, and finally falls into the recovery trolley 2;

[0058] S3, cleaning the filter assembly 10, the internal cleaning mechanism 18 of the filter assembly 10 shakes off the filter cake residue attached to the outside of the filter plate 15, and drops it into the discharge funnel 3, and finally falls into the recovery trolley 2, and the filtration is completed.

[0059] The present invention sets a filter assembly 10, a discharge funnel 3 and a recovery trolley 2. First, drilling mud is input into multiple filter assemblies 10 through the water inlet end 11 to fill the interior of the filter assembly, and the filter assembly 10 is squeezed by the extrusion cylinder 7 to dehydrate the mud inside the multiple filter assemblies 10 and form a filter cake. Subsequently, the filter assembly 10 is opened in sequence to recover the fallen filter cake, and the filter cake falls into the discharge funnel 3 and the recovery trolley 2, which is convenient and fast to collect the filter cake with higher efficiency. In addition, a cleaning mechanism 18 and an adjustment mechanism 19 are set inside a single filter assembly 10, which can realize shaking cleaning from the inside of the filter plate 15, and evenly apply force to the filter plate 15, making it easier to clean the attached filter cake residue, with high efficiency and good cleaning effect.

[0060] The above is a schematic description of the present invention and its embodiments, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs a structure and embodiment similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

[0061] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A waste water-based drilling mud filter press treatment device, comprising a support frame (1) and vertical plates (8) symmetrically installed at both ends of the support frame (1), characterized in that: Two overlapping rods (5) are symmetrically installed between the two vertical plates (8), and a plurality of filter components (10) are evenly distributed and overlapped on the upper ends of the two overlapping rods (5); A feeding hopper (3) is also installed at the upper end of the support frame (1), and a recycling trolley (2) is also provided below the feeding hopper (3); An extrusion cylinder (7) is installed on the side of the vertical plate (8) on either side, and the other end of the extrusion cylinder (7) is connected to a push plate (9), and rolling bearings (4) are installed on both sides of the push plate (9), and the rolling bearings (4) are slidably installed above the lap rod (5), and the push plate (9) can be extruded with the side of the filter assembly (10); The other side vertical plate (8) is provided with a water inlet end (11) and a water outlet end, and the water inlet end (11) can be connected to the filter assembly (10), and an anti-slip rod (6) is also installed on the lap rod (5). Both sides of the single filter assembly (10) are also provided with a mounting rod (12), and the mounting rod (12) is overlapped on the anti-slip rod (6); The filter assembly (10) includes an outer plate (13) and filter plates (15) mounted on both end surfaces of the outer plate (13). The mounting rod (12) is connected to both sides of the outer plate (13). A mounting cavity is formed between the outer plate (13) and the filter plate (15). Two water inlets (14) are provided on each of the two filter plates (15). Internal pipes (17) are connected between each of the water inlets (14). Two cleaning mechanisms (18) are symmetrically arranged between the two internal pipes (17). Both sides of the cleaning mechanism (18) are in contact with the inner side of the filter plate (15). An adjusting mechanism (19) is also connected to the inner side of the outer plate (13). Both cleaning mechanisms (18) are connected to the adjusting mechanism (19). A single cleaning mechanism (18) comprises a mounting plate (35), a driving inner gear ring (33) and a support rod (28), wherein the driving inner gear ring (33) is mounted on the upper end of the mounting plate (35); The number of the support rods (28) is two, and they are mirror-symmetrically mounted on both sides of the driving inner gear ring (33). A cross bar (30) is connected between the top ends of the two support rods (28). The side and both ends of the cross bar (30) are open structures, and a swing block (36) is slidably connected inside the cross bar (30). A first driving motor (38) is mounted below the mounting plate (35) at the axis of the driving inner gear ring (33). The output shaft of the first driving motor (38) is connected to one end of a first connecting rod (34). The other end of the first connecting rod (34) is connected to a rotating tooth (37). The rotating tooth (37) is also connected to the top. One end of the second connecting rod (32) is rotatably connected, and the other end of the second connecting rod (32) is connected to the side of the swing block (36). Two swing rods (29) are also slidably connected inside the cross rod (30), and the ends of the two swing rods (29) that are close to each other are connected to the swing block (36), and the ends of the two swing rods (29) that are away from each other are connected to a cleaning rod (27), and the cleaning rod (27) can contact the inner side of the filter plate (15); the combined length of the two swing rods (29) is greater than the length of the cross rod (30), and the combined length of the two swing rods (29) is less than the distance between the two filter plates (15); One end of a connecting rod (31) is also connected to the center position of the upper end of the cross bar (30); The adjusting mechanism (19) comprises a screw groove (21) provided on the inner top surface of the outer plate (13), a second drive motor (40) installed at the bottom of the screw groove (21), and an adjusting screw (22). The outer side of the adjusting screw (22) is symmetrically provided with two sets of threads of the same length, and the thread directions of the two sets of threads are opposite. One end of the adjusting screw (22) is connected to the power output shaft of the second drive motor (40), and the outer sides of the two sets of threads are each connected to one end of an adjusting rod (25), and the other end of a single adjusting rod (25) is connected to the other end of a connecting rod (31) at a corresponding position.

2. The waste water-based drilling mud filter press treatment device according to claim 1, characterized in that: The screw groove (21) has symmetrically provided limiting grooves (20) on both sides thereof. A single adjusting rod (25) is located inside the screw groove (21) and symmetrically provided with limiting rods (24) on both sides thereof. The other ends of the limiting rods (24) are slidably connected to the inside of the limiting grooves (20).

3. The waste water-based drilling mud filter press treatment device according to claim 2, characterized in that: A single filter plate (15) is symmetrically provided with a stabilizing groove (26) on its inner side, and stabilizing rods (39) are connected to the mounting plate (35) at positions corresponding to the stabilizing grooves (26), and the ends of the stabilizing rods (39) are slidably connected to the stabilizing grooves (26).

4. The waste water-based drilling mud filter press treatment device according to claim 3, characterized in that: The inner sides of both end surfaces of the outer plate (13) are further provided with extension portions (16), the ends of the extension portions (16) can be buckled inwardly on the outer side of the eaves of the filter plate (15), the inner eaves of both end surfaces of the outer plate (13) are provided with inner stoppers (23), and the filter plate (15) can abut against the inner stoppers (23), the opening of the water inlet (14) located on the inner side of the filter plate (15) is provided with an embedded portion, and both ends of the inner through pipe (17) are plugged into the embedded portion.

5. A filter press treatment process for waste water-based drilling mud, characterized in that: Applicable to the waste water-based drilling mud filter press treatment device according to claim 4, the waste water-based drilling mud filter press treatment process comprises the following steps: S1. Sewage is fed into the device through the water inlet (11), circulated and filled into the plurality of filter components (10), and the extrusion cylinder (7) squeezes the push plate (9) to squeeze and filter the plurality of filter components (10); S2, filtration is completed, the filtered water is discharged from the water outlet, and at the same time is recovered by the extrusion cylinder (7), and multiple filter components (10) are opened in sequence, the filter cake falls off and falls into the discharge funnel (3), and during the falling process, it contacts the discharge funnel (3) and becomes loose, and finally falls into the recovery trolley (2); S3, cleaning the filter assembly (10), the internal cleaning mechanism (18) of the filter assembly (10) shakes off the filter cake residue attached to the outside of the filter plate (15), and the filter cake residue falls into the discharge funnel (3), and finally falls into the recovery trolley (2), and the filtration is completed.

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