Oilfield wastewater and sludge treatment equipment

Abstract

This utility model provides an oilfield wastewater and sludge treatment device, relating to the field of oilfield wastewater and sludge treatment technology. The treatment tank has a drive shaft and a driven shaft rotatably connected to its side. In this utility model, a filter timing belt, a first torque motor, rollers, and a guide plate are installed. The filter timing belt, driven by the rollers, carries the filtered sludge to the guide plate, solving the problem of blockage caused by pouring large amounts of oily sludge into the treatment tank. The separated sludge is squeezed through a screw rod, a pipe groove, a second torque motor, a bottom plate, a water filter tank, and a sludge discharge port, squeezing out the wastewater and oil contained within the sludge, thoroughly separating the oil and sludge. Wastewater from the wastewater collection tank is then discharged into the treatment tank for further treatment via a water pump, suction pipe, and drainage pipe, ensuring full utilization. A sludge scraper is installed to scrape off the sludge adhering to the filter conveyor belt, preventing it from falling into the treatment tank.

Description

Technical Field

[0001] This utility model provides an oilfield waste oil, wastewater and sludge treatment device, which relates to the field of oilfield waste oil, wastewater and sludge treatment technology. Background Technology

[0002] Oilfield wastewater and sludge treatment devices are used to treat mixed pollutants containing waste oil, wastewater, and sludge generated during oilfield extraction. Through a series of physical, chemical, and biological treatment processes, the oil, sludge, and water are separated and purified, ensuring that the treated water meets discharge standards or reinjection requirements. Oil and sludge are rationally recycled or treated, reducing environmental pollution and achieving effective resource utilization. Publication No. CN218572934U discloses an oilfield wastewater and sludge treatment device with oil-water-solid three-phase separation function, relating to the field of oilfield wastewater and sludge treatment technology. This utility model discloses an oilfield wastewater and sludge treatment device with oil-water-solid three-phase separation function, including a base plate. A sludge collection box is fixedly connected to the right side of the top of the base plate, and a transparent treatment box is fixedly connected to the center of the top of the base plate. This utility model achieves the advantage of three-phase separation of oil, water, and solids by setting up a sludge collection box, sludge filter plate, sludge discharge trough, guide plate, drain pipe, drain valve, oil storage tank, filter shell, filter screen, oil discharge pipe, oil discharge valve, box body, sliding groove, motor, threaded rod, threaded block, sliding sleeve, sliding rod, sliding column, lifting plate, oil suction pump, oil suction pipe, and oil outlet pipe in coordination. This allows for the separation of oily sludge, sewage, and sludge during oilfield sludge treatment, avoiding the problem of poor treatment effect in oilfield sludge treatment devices and improving the treatment efficiency of oilfield sludge treatment devices, thus meeting practical application needs. However, although this device solves the problem of separation and treatment of oily sludge, sewage, and sludge, when a large amount of oily sludge is poured into the treatment tank, the slow flow of the sludge can cause blockage on the filter plate, affecting the overall efficiency. Furthermore, the separated sludge may still contain a small amount of sewage and oil, indicating that it has not been completely cleaned, resulting in poor separation effect. Therefore, improvements are needed. Utility Model Content

[0003] The purpose of this utility model is to solve the technical problems mentioned in the background art.

[0004] This utility model adopts the following technical solution: an oilfield wastewater and sludge treatment device, including a treatment box. A drive pulley and a driven pulley are rotatably connected to the side of the treatment box. Rollers are fixedly installed on the surfaces of the drive pulley and the driven pulley. A filter timing belt is sleeved on the surface of the rollers. A belt is sleeved on the surfaces of the drive pulley and the driven pulley. A first torque motor is fixedly installed on the surface of the drive pulley. A sludge scraper and a guide plate are fixedly installed on the surface of the treatment box. An installation frame is placed below the guide plate. A second torque motor and a pipe groove are fixedly installed on the surface of the installation frame. A bottom plate is fixedly installed on the end face of the pipe groove. A screw rod is fixedly installed on the output end of the second torque motor. A water filter groove and a sludge discharge groove are opened on the surface of the pipe groove. A wastewater collection box is placed below the water filter groove. A sludge collection box is placed below the sludge discharge groove. An installation plate is fixedly installed on the side of the treatment box. A water pump is fixedly installed on the surface of the installation plate. A drain pipe is connected to the output end of the water pump. A suction pipe is connected to the input end of the water pump.

[0005] Preferably, the surface of the treatment tank is connected to an oil suction pipe, the end face of the oil suction pipe is connected to an oil pump, the output end of the oil pump is connected to an oil discharge pipe, a sludge collection tank is fixedly installed at the bottom of the oil pump, a drain valve is connected to the bottom of the treatment tank, an oil discharge valve is connected to the bottom of the sludge collection tank, and a float plate is fixedly installed at one end of the oil suction pipe. Here, the oil pump can draw sludge from the treatment tank through the oil suction pipe and discharge it into the sludge collection tank through the oil discharge pipe. The float plate allows the end face of the oil suction pipe to float on the oil layer, absorbing the sludge.

[0006] Preferably, the roller is rotatably connected to the filter timing belt and vice versa. Here, the filter timing belt filters the sludge, and the roller drives the filter timing belt to carry the clogged sludge to the next processing stage.

[0007] Preferably, the base plate and mounting bracket are rotatably connected to the screw rod. Here, the screw rod pushes the sludge towards the pipe channel, and the base plate compresses the sludge. Wastewater and oil will flow from the filter tank into the wastewater collection tank, and the compressed sludge will be discharged from the sludge discharge channel into the sludge collection tank.

[0008] Preferably, the drain pipe is connected to the surface of the treatment tank. Here, the water pump, suction pipe, and drain pipe are installed to draw sewage from the sewage collection tank into the treatment tank for secondary treatment.

[0009] Preferably, the floating balls are arranged in a triangular pattern on the surface of the floating plate. Here, the three floating balls make the floating plate float more stably on the oil layer.

[0010] Preferably, the floating ball has a hollow spherical structure. Here, the hollow structure allows the floating ball to float higher on the water surface, avoiding the absorption of sewage and only absorbing it from the oily layer.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, the filter timing belt, first torque motor, rollers, and guide plate are configured. The filter timing belt, driven by the rollers, carries the filtered sludge to the guide plate, solving the problem of blockage caused by pouring a large amount of oily sludge into the treatment tank. The separated sludge is squeezed through a screw rod, pipe groove, second torque motor, pipe groove, bottom plate, filter tank, and sludge discharge port, squeezing out the sewage and oil contained inside the sludge, thoroughly separating the oily sludge. The sewage in the sewage collection tank is then discharged into the treatment tank for treatment through a water pump, suction pipe, and drainage pipe, making full use of the resources. The sludge scraper can scrape off the sludge attached to the filter timing belt, preventing it from falling into the treatment tank.

[0013] 2. In this utility model, the floating ball controls the lifting height of the floating plate, so that the floating plate only contacts the top of the sludge layer, avoiding the intake of the lower sewage layer, and also making the floating plate float more stably on the oil layer. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of an oilfield wastewater and sludge treatment device proposed by this utility model;

[0015] Figure 2 This utility model provides a top view of an oilfield waste oil, wastewater, and sludge treatment device;

[0016] Figure 3 A side view of an oilfield waste oil, wastewater, and sludge treatment device is provided for this utility model.

[0017] Figure 4 This utility model provides a partial cross-sectional schematic diagram of the pipe and trench section in an oilfield waste oil, wastewater, and sludge treatment device.

[0018] Figure 5 This invention provides an exploded schematic diagram of the conveyor belt in an oilfield wastewater and sludge treatment device.

[0019] Figure 6 This invention provides a partial cross-sectional schematic diagram of the treatment tank in an oilfield wastewater and sludge treatment device.

[0020] Figure 7 This utility model proposes an oilfield wastewater and sludge treatment device. Figure 6 Enlarged view of point A in the image.

[0021] Legend:

[0022] 1. Processing box; 2. Filter timing belt; 3. First torque motor; 4. Roller; 5. Belt; 6. Guide plate; 7. Drain valve; 8. Sludge scraper; 9. Second torque motor; 10. Mounting bracket; 11. Pipe groove; 12. Filter water tank; 13. Base plate; 14. Sludge discharge trough; 15. Sludge collection box; 16. Wastewater collection box; 17. Oil pump; 18. Sludge oil collection box; 19. Screw rod; 20. Water pump; 21. Suction pipe; 22. Drain pipe; 23. Oil suction pipe; 24. Oil discharge pipe; 25. Oil discharge valve; 26. Float plate; 27. Float ball; 28. Mounting plate; 29. ​​Drive pulley; 30. Driven pulley. Detailed Implementation

[0023] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0025] Example 1

[0026] Please see Figure 1-6The present invention adopts the following technical solution: an oilfield wastewater and sludge treatment device, comprising a treatment box 1, a drive pulley 29 and a driven pulley 30 rotatably connected to the side of the treatment box 1, rollers 4 fixedly mounted on the surfaces of the drive pulley 29 and the driven pulley 30, a filter timing belt 2 sleeved on the surface of the rollers 4, a belt 5 sleeved on the surfaces of the drive pulley 29 and the driven pulley 30, a first torque motor 3 fixedly mounted on the surface of the drive pulley 29, a scraper 8 and a guide plate 6 fixedly mounted on the surface of the treatment box 1, a mounting frame 10 placed below the guide plate 6, and a second torque motor 3 fixedly mounted on the surface of the mounting frame 10. A torque motor 9 and a pipe trough 11 are provided. A base plate 13 is fixedly installed on the end face of the pipe trough 11. A screw rod 19 is fixedly installed on the output end of the second torque motor 9. A water filter trough 12 and a sludge discharge trough 14 are provided on the surface of the pipe trough 11. A sewage collection tank 16 is placed below the water filter trough 12, and a sludge collection tank 15 is placed below the sludge discharge trough 14. An installation plate 28 is fixedly installed on the side of the treatment tank 1. A water pump 20 is fixedly installed on the surface of the installation plate 28. The output end of the water pump 20 is connected to a drain pipe 22, and the input end of the water pump 20 is connected to a suction pipe 21. An oil suction pipe 23 is connected to the surface of the treatment tank 1, and the end face of the oil suction pipe 23 is connected to an oil extraction pipe. Pump 17 has an output end connected to an oil drain pipe 24. An oil sludge collection tank 18 is fixedly installed at the bottom of the pump 17. A drain valve 7 is connected to the bottom of the treatment tank 1, and an oil drain valve 25 is connected to the bottom of the oil sludge collection tank 18. A float plate 26 is fixedly installed at one end of the suction pipe 23. The pump 17 can draw the oil sludge from the treatment tank 1 through the suction pipe 23 and discharge it into the oil sludge collection tank 18 through the oil drain pipe 24. The float plate 26 allows the end face of the suction pipe 23 to float on the oil layer, absorbing the oil sludge. Rollers 4 and the filter timing belt 2 are connected in a rolling manner, and rollers 4 are rotatably connected to the treatment tank 1. The filter timing belt 2 can... The sludge is filtered by roller 4, which drives the filter timing belt 2 to carry the clogged sludge to the next treatment stage. The base plate 13 and the mounting frame 10 are rotatably connected to the screw rod 19. The screw rod 19 pushes the sludge to move towards the pipe trough 11. The sludge is squeezed by the base plate 13. Sewage and oil will flow from the filter tank 12 into the sewage collection tank 16. The sludge after compression will be discharged from the sludge discharge trough 14 into the sludge collection tank 15. The drain pipe 22 is connected to the surface of the treatment tank 1. The water pump 20, the suction pipe 21 and the drain pipe 22 are installed to draw the sewage in the sewage collection tank 16 into the treatment tank 1 for secondary treatment.

[0027] Example 2

[0028] Please see Figure 7The floating balls 27 are distributed in a triangular pattern on the surface of the floating plate 26. The three floating balls 27 can make the floating plate 26 float more stably on the oil layer. The floating balls 27 are hollow spheres. The hollow structure allows the floating balls 27 to float higher on the water surface and avoid sucking up sewage. They will only absorb sewage on the oily layer.

[0029] Working principle: First, the first torque motor 3 and the second torque motor 9 are started. Oily sludge from the oilfield is poured into the treatment tank 1 from above. The sludge is filtered by the synchronous filter belt 2, separating the wastewater from the sludge. The wastewater flows into the treatment tank 1. The drive pulley 29 and the driven pulley 30 drive the roller 4 via the belt 5. The synchronous filter belt 2, driven by the roller 4, carries the sludge to the guide plate 6. The scraper 8 scrapes the sludge adhering to the synchronous filter belt 2 cleanly. Then, the sludge falls from the guide plate 6 onto the mounting frame 10. The screw rod 19 pushes the sludge into the pipe groove 11 for compression. The squeezed wastewater flows out through the filter tank 12 on the pipe groove 11. The sludge is filtered into the sewage collection tank 16, while the squeezed sludge falls from the sludge discharge trough 14 into the sludge collection tank 15. Then, the water pump 20 is started to drive the suction pipe 21 and the drain pipe 22 to draw the sewage from the sewage collection tank 16 into the treatment tank 1. Due to the density difference between water and oil, the oil will float on the water surface. Then, the oil pump 17 is started to drive the oil suction pipe 23 and the oil discharge pipe 24. Since the end face of the oil suction pipe 23 is equipped with a float plate 26 and a float ball 27, the oil suction pipe 23 will only suck up the surface sludge oil and will not suck up the lower layer of sewage. The sludge oil will be discharged into the sludge oil collection tank 18 through the oil discharge pipe 24. Finally, the drain valve 7 and the oil discharge valve 25 are opened to remove the sludge.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An oilfield wastewater and sludge treatment device, comprising a treatment tank (1) and a floating ball (27), characterized in that: A drive pulley (29) and a driven pulley (30) are rotatably connected to the side of the treatment box (1). Rollers (4) are fixedly mounted on the surfaces of the drive pulley (29) and the driven pulley (30). A filter timing belt (2) is sleeved on the surface of the rollers (4). A belt (5) is sleeved on the surfaces of the drive pulley (29) and the driven pulley (30). A first torque motor (3) is fixedly mounted on the surface of the drive pulley (29). A scraper (8) and a guide plate (6) are fixedly mounted on the surface of the treatment box (1). A mounting frame (10) is placed below the guide plate (6). A second torque motor (9) is fixedly mounted on the surface of the mounting frame (10). The pipe (11) is fixedly mounted with a base plate (13) on its end face. The output end of the second torque motor (9) is fixedly mounted with a screw rod (19). The surface of the pipe (11) is provided with a water filter tank (12) and a sludge discharge tank (14). A sewage collection tank (16) is placed below the water filter tank (12). A sludge collection tank (15) is placed below the sludge discharge tank (14). An installation plate (28) is fixedly mounted on the side of the treatment box (1). A water pump (20) is fixedly mounted on the surface of the installation plate (28). The output end of the water pump (20) is connected to a drain pipe (22). The input end of the water pump (20) is connected to a suction pipe (21).

2. The oilfield wastewater and sludge treatment device according to claim 1, characterized in that: The surface of the processing tank (1) is connected to an oil suction pipe (23), the end face of the oil suction pipe (23) is connected to an oil pump (17), the output end of the oil pump (17) is connected to an oil drain pipe (24), a sludge collection tank (18) is fixedly installed at the bottom of the oil pump (17), a drain valve (7) is connected to the bottom of the processing tank (1), an oil drain valve (25) is connected to the bottom of the sludge collection tank (18), and a float plate (26) is fixedly installed at one end of the oil suction pipe (23).

3. The oilfield wastewater and sludge treatment device according to claim 1, characterized in that: The roller (4) is rolled to the filter timing belt (2), and the roller (4) is rotatably connected to the processing box (1).

4. The oilfield wastewater and sludge treatment device according to claim 1, characterized in that: The base plate (13) and mounting bracket (10) are rotatably connected to the screw rod (19).

5. The oilfield wastewater and sludge treatment device according to claim 1, characterized in that: The drain pipe (22) is connected to the surface of the treatment box (1).

6. The oilfield wastewater and sludge treatment device according to claim 1, characterized in that: The floating balls (27) are distributed in a triangular pattern on the surface of the floating plate (26).

7. The oilfield wastewater and sludge treatment device according to claim 6, characterized in that: The floating ball (27) has a hollow spherical structure.

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