CN221061855U - Drilling wastewater treatment device - Google Patents

Abstract

The utility model discloses a treatment device for drilling wastewater, and relates to the technical field of wastewater treatment. The device comprises a frame, a filter plate and a mud bucket, wherein the filter plate and the mud bucket are arranged on the frame, and the mud bucket is positioned on a discharging path of the filter plate and also comprises a knocking unit and a crushing unit; the knocking unit comprises a knocking part, wherein the knocking part is configured to knock the filter plate and/or the frame; the crushing unit comprises a crushing part, and the crushing part is positioned at the discharge hole of the mud bucket. According to the utility model, through the cooperation of the knocking unit and the crushing unit, the filter cakes on the filter plate and the mud bucket can be automatically treated, and the condition that the device is stopped to treat the filter cakes is avoided, so that the device can operate for a long time, and the corresponding labor cost and risk are reduced.

Description

Drilling wastewater treatment device

Technical Field

The utility model relates to the technical field of wastewater treatment, in particular to a drilling wastewater treatment device.

Background

In the petroleum and natural gas drilling process, a large amount of wastewater is generated, the wastewater contains a large amount of sludge, and the sludge contains suspended matters, heavy metals, oil, phenol, sulfides and the like, so that the wastewater can pollute the environment and harm the health of human beings, animals and plants if the wastewater is directly discharged.

In order to reduce the mud in the waste water, the emission of waste water of being convenient for can adopt the pressure filter to come the solid-liquid separation in the waste water, the pressure filter has a plurality of filter, when filtering, compress tightly each filter at first and form the filter chamber, pour into the filter chamber with waste water into, mud is held back at the filter chamber and is formed the filter cake, the waste water after the filtration then outside the liquid pore that combines through each filter was discharged the filter, after the filtration was accomplished, make each filter separate, the filter cake falls into the mud bucket, be convenient for concentrate shipment, realize the emission after the waste water treatment, the filter cake can burn back cyclic utilization, green.

The filter cake has certain viscosity, even if the filter plates are separated, the filter cake cannot fall completely, the left filter cake occupies a certain filter chamber space when the filter cake is subjected to next filter pressing, the filter pressing amount of wastewater is reduced to a certain extent, meanwhile, the filter cake falls into a mud bucket and is generally blocky, the filter cake formed after multiple filter pressing falls into the mud bucket and is accumulated excessively, a discharge hole of the mud bucket is easily blocked, and the filter cake is difficult to output from the mud bucket; when the above-mentioned circumstances take place, need often come to stop the device and come to the manual work to handle the filter cake of filter board or mud bucket, very big influence the efficiency of operation, and there is the risk that the filter cake that drops will be smashed or buries the people in the manual handling process.

Disclosure of utility model

The utility model aims at: aiming at the technical problems that the filter cake of a filter plate or a mud bucket is treated by a stopping device in the prior art, thereby influencing the operation efficiency of the device, the drilling wastewater treatment device is provided.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

The drilling wastewater treatment device comprises a frame, a filter plate and a mud bucket, wherein the filter plate and the mud bucket are arranged on the frame, and the mud bucket is positioned on a discharging path of the filter plate and further comprises a knocking unit and a crushing unit; the knocking unit comprises a knocking part, wherein the knocking part is configured to be capable of knocking the filter plate and/or the rack; the crushing unit comprises a crushing part, and the crushing part is positioned in the mud bucket.

As an alternative of the present utility model, the striking unit further includes a movable rod and a limiting plate; the limiting plate is arranged on the frame; the movable rod is connected with the knocking part, and the connecting part is a first point position; the movable rod is connected with the driving device, and the connecting part is a second point position; the movable rod is rotationally connected with the limiting plate, and the connecting part is a third point; the first point position and the second point position can reciprocally rotate along the direction approaching or departing from the frame under the drive of the driving device, and when the second point position moves to the position nearest to or farthest from the frame, the knocking part can knock on the frame and/or the filter plate.

As an alternative of the present utility model, the first point location and the third point location have a first pitch along an axial direction of the movable rod, the second point location and the third point location have a second pitch along the axial direction of the movable rod, and the first pitch is greater than the second pitch.

As an alternative of the present utility model, the first point location, the third point location, and the second point location are sequentially disposed along an axial direction of the movable rod.

As an alternative scheme of the utility model, when the number of the filter plates is plural, and the plural filter plates are sequentially arranged along the preset direction, the knocking part is configured to be capable of knocking the rack, the knocking part comprises plural knocking heads, and the plural knocking heads are sequentially arranged at intervals along the preset direction.

As an alternative of the present utility model, the pulverizing unit includes a movable plate, a rotary driving member, and a rotating lever as a pulverizing portion; the movable plate is connected with the driving device and can reciprocate under the driving of the driving device; the rotating rod is rotatably arranged on the movable plate, and a blade is arranged on the rotating rod; the rotary driving piece is arranged on the movable plate and/or the mud bucket and is used for promoting the rotary rod to rotate when the movable plate moves reciprocally.

As an alternative of the utility model, the rotary driving member comprises a gear and a rack which are meshed with each other, the gear is sleeved on the rotating rod, and the rack is arranged in the mud bucket.

As an alternative scheme of the utility model, the device further comprises a transmission assembly, wherein the transmission assembly comprises an adapter plate and a driving device, and the driving device is used for driving the adapter plate to reciprocate along the direction approaching to or separating from the rack; the adapter plate is connected with the movable plate; the adapter plate is provided with a connecting plate, the connecting plate is provided with a first sliding block, the movable rod is provided with a first sliding groove, and the first sliding block can rotate and can be arranged in the first sliding groove in a sliding manner.

As an alternative of the utility model, a retaining hole is arranged on the mud bucket, and the movable plate passes through the retaining hole.

As an alternative scheme of the utility model, the driving device is a motor, a driving rod is arranged on an output shaft of the motor, a second sliding block is arranged on the driving rod, the second sliding block and the output shaft are arranged at intervals along the axial direction of the driving rod, a second sliding groove is arranged on the adapter plate, and the second sliding block can rotate and can be arranged in the second sliding groove in a sliding way; when the output shaft rotates, the second sliding block can slide in the second sliding groove in a reciprocating manner and rotate, so that the adapter plate moves in a reciprocating manner in a direction approaching or separating from the rack.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

1. According to the drilling wastewater treatment device provided by the utility model, the knocking part is driven to knock the frame and/or the filter plates, so that residual filter cakes adhered to the filter plates are shaken off, the filter plates are cleaned, meanwhile, the residual filter cakes are prevented from occupying the filter chamber space between the filter plates, and the next filter pressing amount is reduced; the filter cake that is shaken off gets into the mud bucket in from the discharge gate of mud bucket, will drop the filter cake in the mud bucket through crushing portion and stir into the granule, avoids blocking up the discharge gate of mud bucket, does not need the manual work to dredge simultaneously, avoids dangerous emergence.

2. According to the drilling wastewater treatment device, the filter cake on the filter plate and the mud bucket can be automatically treated through the cooperation of the knocking unit and the crushing unit, so that the condition that the device is stopped to treat the filter cake is avoided, the device can operate for a long time, and the corresponding labor cost and risk are reduced.

Drawings

Fig. 1 is a schematic overall structure of embodiment 1 of the present utility model.

Fig. 2 is a schematic diagram showing the cooperation between the pulverizing unit and the mud bucket according to embodiment 1 of the present utility model.

Fig. 3 is a schematic structural view of a pulverizing unit according to embodiment 1 of the present utility model.

Fig. 4 is a schematic structural diagram of a transmission assembly according to embodiment 1 of the present utility model.

Fig. 5 is a schematic diagram illustrating the cooperation between a motor and an adapter plate according to embodiment 1 of the present utility model.

The marks in the figure: 1-a filter press; 2-a frame; 3-pulling plate trolley; 4-a filter plate; 5-a mud bucket; 6-supporting plates; 7-a motor; 8-connecting plates; 9-a movable plate; 10-an adapter plate; 11-a first slider; 12-limiting plates; 13-a movable rod; 14-knocking head; 15-retention holes; 16-a second slider; 17-a second chute; 18-a first chute; 19-a drive rod; 20-an output shaft; 21-a rotating rod; 22-blade; 23-racks; 24-gear; 25-a rotation hole; 26-rotating shaft; 27-limit holes.

Detailed Description

The present utility model will be described in detail with reference to the accompanying drawings.

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Example 1

A treatment device for drilling wastewater is shown in fig. 1, and comprises a frame 2, a filter plate 4 and a mud bucket 5, wherein the filter plate 4 and the mud bucket 5 are arranged on the frame 2, the mud bucket 5 is positioned on a discharging path of the filter plate 4, a pull plate trolley 3 is arranged on the frame 2, and the filter plate 4 is driven to be separated or attached to each other through the pull plate trolley 3.

The device also comprises a knocking unit and a crushing unit; the knocking unit comprises a knocking part, the knocking part is positioned beside the frame 2 and can knock the filter plate 4 and/or the frame 2 under the drive of the driving device; the crushing unit comprises a crushing part, and the crushing part is positioned at the discharge hole of the mud bucket 5.

After the filter plates 4 finish filtering, the frame 2 and/or the filter plates 4 are knocked by driving the knocking part, so that residual filter cakes adhered to the filter plates 4 are shaken off, thereby realizing the cleaning of the filter plates 4, and simultaneously avoiding the residual filter cakes from occupying the filter chamber space between the filter plates 4, so that the next filter pressing amount is reduced; the filter cake that is shaken off gets into in the mud bucket 5 from the discharge gate of mud bucket 5, will drop the filter cake in the mud bucket 5 through crushing portion and stir into the granule, avoids blocking up the discharge gate of mud bucket 5, does not need the manual work to dredge simultaneously, avoids dangerous emergence.

As shown in fig. 1, in one or more embodiments, the striking unit further includes a movable rod 13 and a limiting plate 12, the limiting plate 12 being disposed on the frame 2; the movable rod 13 is fixedly connected with the knocking part, and the connecting part is a first point position; the movable rod 13 is in transmission connection with the driving device, and the connection part of the movable rod is a second point position; the movable rod 13 is provided with a rotating shaft 26, the limiting plate 12 is provided with a limiting hole 27, the rotating shaft 26 is rotatably arranged in the limiting hole 27, at the moment, the connection part of the rotating shaft 26 and the limiting hole 27 is a third point, and the movable rod 13 can only rotate around the third point under the cooperation of the rotating shaft 26 and the limiting hole 27.

The first point location and the second point location can be reciprocally rotated in a direction approaching or departing from the frame 2 under the driving of the driving device, and when the second point location is moved to a position nearest or farthest from the frame 2, the knocking portion can be knocked on the frame 2 and/or the filter plate 4.

At this time, as shown in fig. 4, the whole movable rod 13 may be regarded as a lever, at this time, the third point on the movable rod 13 is regarded as a fulcrum, and power is applied to the second point on the movable rod 13 by the driving device, so that the second point drives the whole movable rod 13 to rotate around the third point, and the frame 2 and/or the filter board 4 is repeatedly knocked by the knocking part on the first point.

Wherein, optionally, the first point position and the third point position have a first interval along the axial direction of the movable rod 13, the second point position and the third point position have a second interval along the axial direction of the movable rod 13, and the first interval is greater than the second interval.

From this makes the rotation speed at first position is greater than the rotation speed at second position for first position has bigger kinetic energy when rotating and strikes frame 2 and/or filter 4, produces bigger vibration so that gluey residual filter cake on filter 4 is shaken off, improves the clearance effect to filter cake on the filter 4.

The positional relationship among the first point location, the second point location, and the third point location may be that the first point location and the second point location are located on the same side of the third point location, or that the first point location and the second point location are located on two sides of the third point location. In the course of the installation of the striking unit it was found that ideally when the second point of the movable rod 13 is moved to a position furthest from the frame 2, the striking part is in contact with the struck frame 2 and/or the filter plate 4, but in the actual state there is often a certain installation error, i.e. when the second point has not been moved to a position furthest from the frame 2, the striking part has been in contact with the struck frame 2 and/or the filter plate 4, and as the second point continues to move towards the extreme position in the corresponding direction, the striking part will be blocked by the struck frame 2 and/or the filter plate 4, which on the one hand may result in the second point not continuing to move towards the extreme position in the corresponding direction, which in turn may result in the reciprocating rotation of the movable rod not being performed, and on the other hand may result in the movable rod 13 or the struck frame 2 and/or the filter plate 4 being compressively damaged. Therefore, in order to reduce the accuracy requirements for the installation of the knocking unit, it is necessary to make the knocking unit have an improved adaptability to the installation errors.

Therefore, it is preferable that the first point and the second point are arranged on both sides of the third point, that is, the first point, the third point, and the second point are arranged in this order in the axial direction of the movable rod 13.

At this time, the first point location and the second point location are respectively arranged at two ends of the movable rod 13, the third point location is located between the first point location and the second point location, at this time, a rod section located between the first point location and the third point location on the movable rod 13 is not connected with other components, is weak in rigidity, has a certain degree of freedom, and therefore enables the part of the rod section to generate larger elastic deformation, and can generate proper elastic deformation when the knocking part is blocked, so that the second point location can be ensured to continuously move towards the limit position in the corresponding direction when the knocking part is contacted with the knocked frame 2 and/or the filter plate 4, and reciprocating rotation of the second point location is ensured.

It should be noted that the arrangement of the above-mentioned points is only for increasing the bendable amplitude of the rod segment between the first point and the third point on the movable rod 13, and is not limited to the material of the part of the rod segment, and the part of the rod segment is preferably made of metal when the elastic deformation of the part of the rod segment is required.

It should be noted that, in the apparatus, the number of the filter plates 4 is usually plural, and the plurality of filter plates 4 are sequentially arranged along a predetermined direction, and the plurality of filter plates 4 can be separated from or close to each other along the predetermined direction under the pulling of the pulling cart 3, so as to realize separation or attachment of each filter plate 4 from each other, wherein the predetermined direction is usually a horizontal direction. At this time, it is preferable to make the knocking portion knock the frame 2, thereby uniformly vibrating all the filter plates 4, saving the cost of the knocking portion setting, and simultaneously avoiding the damage or deformation of the filter plates 4 under the knocking. At this time, if the striking part applies striking to only one point of the frame 2, the smaller the vibration the filter plate 4 receives as the distance between the filter plate 4 and the striking point increases, so in order to improve the coverage of the vibration, the striking part may include a plurality of striking heads 14, the striking heads 14 are connected to the first point, and the plurality of striking heads 14 are sequentially spaced along the preset direction. Through the interval setting of a plurality of heads 14 that strike for a plurality of heads 14 strike frame 2, can increase and strike the unit and apply the intensity of beating on frame 2 and strike the produced vibrations scope of beating, ensure that the filter 4 that pulls down each other and keep away from of pulling plate dolly 3 all can receive the vibrations that head 14 strikes produced.

It should be noted that, the plurality of tapping heads 14 may be connected to the same movable rod 13 at the same time, or the plurality of tapping heads 14 may be connected to different movable rods 13 in a one-to-one correspondence manner. In one or more embodiments, as shown in fig. 1, the device is provided with two sets of knocking units, wherein a movable rod 13 and a knocking head 14 are respectively connected with each other in each set of knocking units.

As shown in fig. 2 and 3, in one or more embodiments, the pulverizing unit includes a movable plate 9, a rotary driving member, and a rotating lever 21 as a pulverizing portion; the movable plate 9 is connected with the driving device and can reciprocate along the length direction of the discharge hole of the mud bucket 5 under the driving of the driving device; the movable plate 9 is provided with a rotating hole 25, the rotating rod 21 is rotatably arranged in the rotating hole 25, and the rotating rod 21 is provided with a blade 22; a rotation driving member is provided on the movable plate 9 and/or the mud bucket 5 for causing the rotation lever 21 to rotate when the movable plate 9 reciprocates.

The movable plate 9 drives the rotating rod 21 to reciprocate in the mud bucket 5, and meanwhile, the rotating rod 21 is driven to synchronously rotate through the rotary driving piece, so that the rotating rod 21 can stir filter cakes falling on all positions of the discharge port of the mud bucket 5 into small particles through the blade 22 on the rotating rod, and the discharge port of the mud bucket 5 is prevented from being blocked.

Wherein, the rotary driving piece can be a motor 7 arranged on the movable plate 9, and directly drives the rotary rod 21 to rotate; or a plurality of mutually matched components arranged between the mud bucket 5 and the rotating rod 21, wherein the components can convert linear motion into rotary motion, specifically, in one or more embodiments, the rotary driving piece comprises a gear 24 and a rack 23 which are meshed with each other, the gear 24 is sleeved on the rotating rod 21, and the rack 23 is arranged in the mud bucket 5 and extends along the length direction of a discharge hole of the mud bucket 5.

When the movable plate 9 drives the rotating rod 21 to reciprocate along the length direction of the discharge hole of the mud bucket 5, the gear 24 rotates under the drive of the rack 23, and the gear 24 drives the rotating rod 21 to rotate, so that the rotating rod 21 rotates when the movable plate 9 reciprocates.

In one or more embodiments, the device further includes a transmission assembly, where the transmission assembly includes an adapter plate 10 and a driving device, and the driving device is used to drive the adapter plate 10 to reciprocate along a direction approaching or separating from the frame 2, where a reciprocation direction of the adapter plate 10 may be a preset direction horizontal and perpendicular to the filter plate 4; the adapter plate 10 is connected with the movable plate 9; the adapter plate 10 is provided with a connecting plate 8, the connecting plate 8 is provided with a first sliding block 11, the movable rod 13 is provided with a first sliding groove 18, the first sliding groove 18 can extend along the vertical direction, and the first sliding block 11 can rotate and can be slidably arranged in the first sliding groove 18.

At this time, the position of the first slider 11 on the movable rod 13 is the second point, and the reciprocating movement of the movable plate 9 and the reciprocating rotation of the movable rod 13 are synchronously driven by the reciprocating movement of the adapter plate 10, wherein the relative sliding of the first slider 11 and the first sliding groove 18 can adapt to the height change generated in the rotation process of one end of the movable rod 13 provided with the first sliding groove 18, so as to ensure the rotation of the movable rod 13.

Considering that the beating part and the crushing part are usually synchronously carried out after the filter plates 4 are separated, the beating part and the crushing part can be uniformly driven by a single driving device through the arrangement of the transmission assembly, and the required cost for arranging a plurality of driving devices is saved.

To ensure stability of the device drive, in one or more embodiments, the hopper 5 is provided with a retention hole 15, the movable plate 9 passes through the retention hole 15, and the movable plate 9 and the retention hole 15 are slidably arranged along the length direction of the discharge hole of the hopper 5.

The retaining hole 15 plays a certain limiting role on the moving path of the movable plate 9, and meanwhile, as the movable plate 9 is connected with the adapter plate 10, a certain limiting role is played on the moving path of the adapter plate 10, so that the adapter plate 10 and the movable plate 9 can only move along the length direction of the discharge hole of the mud bucket 5, and the transmission stability of the transmission assembly and the retaining hole 15 in the device is ensured.

As shown in fig. 1, 4 and 5, in one or more embodiments, a support plate 6 is installed on one side of the mud bucket 5, a motor 7 serving as a driving device is installed on the support plate 6, a driving rod 19 is arranged on an output shaft 20 of the motor 7, a second sliding block 16 is arranged on the driving rod 19, the second sliding block 16 and the output shaft 20 are arranged at intervals along the axial direction of the driving rod 19, a second sliding groove 17 is arranged on the adapter plate 10, wherein the extending direction of the second sliding groove 17 can be horizontal and perpendicular to the moving direction of the adapter plate 10, and the second sliding block 16 is rotatably and slidably arranged in the second sliding groove 17; when the output shaft 20 rotates, the second slider 16 can reciprocally slide and rotate in the second chute 17, and applies a pushing force to the wall of the second chute 17, so that the adapter plate 10 reciprocally moves in a direction approaching or separating from the frame 2.

The driving rod 19 is driven to rotate by the output shaft 20 of the motor 7 to drive the second sliding block 16 to rotate around the axis of the output shaft 20, and the second sliding block 16 can drive the adapter plate 10 to move along the moving path through the second sliding groove 17 because the moving path of the adapter plate 10 is limited by the retaining hole 15, so that the driving of the motor 7 to each part is realized.

The working principle of one or more embodiments of the application is as follows:

When the waste water is required to be filtered, the filter plates 4 are mutually pressed by the pulling plate trolley 3 to form a filter chamber, the waste water is injected into the filter chamber, sludge is trapped in the filter chamber to form a filter cake, and the filtered waste water is discharged out of the filter plates 4 through liquid pore canals combined by the filter plates 4; after the waste water filter pressing is completed, the filter plates 4 are pulled one by the pulling plate trolley 3, the motor 7 is started, the motor 7 drives the driving rod 19 to rotate, the second sliding block 16 is driven to rotate around the axis of the output shaft 20, and the second sliding block 16 drives the adapter plate 10 to reciprocate along the length direction of the discharge hole of the mud bucket 5 through the second sliding groove 17.

The adapter plate 10 drives the connecting plate 8 to reciprocate synchronously, the movable plate 9 drives the first sliding block 11 to slide and rotate in the first sliding groove 18, the movable rod 13 reciprocates under the extrusion of the first sliding block 11, and the knocking head 14 can continuously knock the frame 2 under the driving of the movable rod 13 at the moment so that residual filter cakes adhered to the filter plates 4 are knocked off.

When the adapter plate 10 drives the connecting plate 8 to reciprocate, the adapter plate 10 drives the movable plate 9 to synchronously reciprocate along the length direction of the discharge port of the mud bucket 5, the rotating rod 21 synchronously reciprocates under the drive of the adapter plate 10, and meanwhile, the gear 24 on the rotating rod 21 rotates under the drive of the rack 23, so that the rotating rod 21 rotates while reciprocating, and the blades 22 on the rotating rod 21 can stir filter cakes falling on the discharge port of the mud bucket 5 into small particles, so that the discharge port of the mud bucket 5 is prevented from being blocked.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (8)

1. The drilling wastewater treatment device comprises a frame (2), a filter plate (4) and a mud bucket (5), wherein the filter plate (4) and the mud bucket (5) are arranged on the frame (2), and the mud bucket (5) is positioned on a discharging path of the filter plate (4), and is characterized by further comprising a knocking unit and a crushing unit;

The striking unit comprises a striking portion configured to be able to strike the filter plate (4) and/or the frame (2);

the crushing unit comprises a crushing part, and the crushing part is positioned in the mud bucket (5);

wherein the knocking unit further comprises a movable rod (13) and a limiting plate (12);

The limiting plate (12) is arranged on the frame (2);

The movable rod (13) is connected with the knocking part, and the connecting part is a first point position; the movable rod (13) is connected with the driving device, and the connecting part is a second point position; the movable rod (13) is rotationally connected with the limiting plate (12), and the connecting part is a third point;

The first point position and the second point position can reciprocally rotate along the direction approaching or separating from the frame (2) under the drive of the driving device, and when the second point position moves to the position closest to or separating from the frame (2), the knocking part can knock on the frame (2) and/or the filter plate (4);

the crushing unit comprises a movable plate (9), a rotary driving piece and a rotary rod (21) serving as a crushing part;

The movable plate (9) is connected with the driving device and can reciprocate under the driving of the driving device;

the rotating rod (21) is rotatably arranged on the movable plate (9), and a blade (22) is arranged on the rotating rod (21);

The rotary driving piece is arranged on the movable plate (9) and/or the mud bucket (5) and is used for promoting the rotary rod (21) to rotate when the movable plate (9) moves reciprocally.

2. A drilling wastewater treatment device according to claim 1, characterized in that the first and third points have a first spacing in the axial direction of the movable rod (13), the second and third points have a second spacing in the axial direction of the movable rod (13), and the first spacing is larger than the second spacing.

3. A treatment device of drilling wastewater according to claim 1, characterized in that the first, third and second points are arranged in sequence along the axial direction of the movable rod (13).

4. The drilling wastewater treatment device according to claim 1, wherein when the number of the filter plates (4) is plural and the plural filter plates (4) are sequentially arranged along a preset direction, the knocking part is configured to be capable of knocking the frame (2), the knocking part comprises plural knocking heads (14), and the plural knocking heads (14) are sequentially arranged at intervals along the preset direction.

5. A drilling wastewater treatment device according to claim 1, characterized in that the rotary driving member comprises a gear (24) and a rack (23) which are meshed with each other, the gear (24) is sleeved on the rotary rod (21), and the rack (23) is arranged in the mud bucket (5).

6. A drilling wastewater treatment device according to claim 1, further comprising a transmission assembly, wherein the transmission assembly comprises an adapter plate (10) and the driving device, and the driving device is used for driving the adapter plate (10) to reciprocate along a direction approaching or separating from the frame (2);

The adapter plate (10) is connected with the movable plate (9);

The adapter plate (10) is provided with a connecting plate (8), the connecting plate (8) is provided with a first sliding block (11), the movable rod (13) is provided with a first sliding groove (18), and the first sliding block (11) can rotate and can be arranged in the first sliding groove (18) in a sliding mode.

7. A drilling wastewater treatment device according to claim 6, characterized in that the mud bucket (5) is provided with a retention hole (15), and the movable plate (9) passes through the retention hole (15).

8. The drilling wastewater treatment device according to claim 7, wherein the driving device is a motor (7), a driving rod (19) is arranged on an output shaft (20) of the motor (7), a second sliding block (16) is arranged on the driving rod (19), the second sliding block (16) and the output shaft (20) are arranged at intervals along the axial direction of the driving rod (19), a second sliding groove (17) is arranged on the adapter plate (10), and the second sliding block (16) is rotatably and slidably arranged in the second sliding groove (17);

When the output shaft (20) rotates, the second sliding block (16) can slide back and forth in the second sliding groove (17) and rotate, so that the adapter plate (10) moves back and forth along the direction approaching or separating from the frame (2).