An oilfield sewage sludge pond purifier

Abstract

The utility model discloses a kind of oilfield sewage sludge pond purification devices, it is related to oilfield sewage treatment technical field, including box, the left side top of the box is fixedly installed with pretreatment component, the upper end front and rear of the box is fixedly installed with linear mixing component.The utility model said a kind of oilfield sewage sludge pond purification devices, it can use the filter plate of the filter hole diameter decreasing of upper and lower two sides to carry out graded filtration to sewage by pretreatment component.And the sludge intercepted by filter plate can be discharged through slagging groove and inclined guide plate, avoid sludge accumulation to block filter hole, strong practicability.By linear mixing component, simple molecular diffusion can be replaced by mechanical stirring, avoid reagent local accumulation.Secondly, the range covered by the linear movement of dispersion rod box, cooperate with rotating action, can evenly disperse reagent that medicine hopper is input to each area of box, improve the reaction rate inside box.

Description

Technical Field

[0001] This utility model relates to the field of oilfield wastewater treatment technology, and in particular to an oilfield wastewater sludge pond purification device. Background Technology

[0002] Petroleum is an important raw material for modern industrial production. An oil field refers to a specific area where crude oil is produced. When an oil field has entered the middle and late stages of oil extraction, the water content of the extracted crude oil has reached 70% to 80%, and in some oil fields it is even as high as 90%. After oil-water separation, a large amount of oily wastewater is generated. If the oily wastewater is discharged directly without treatment, it will not only cause pollution to the soil and water sources, but also harm the interests of the oil field itself. Therefore, it is necessary to store it in a sewage sludge pond and then use coagulants and other media for oil-water separation and purification treatment.

[0003] Chinese patent document CN219907168U discloses a purification device for oilfield wastewater sludge ponds. A threaded rod is installed through the output end of a first motor, penetrating the housing. A coagulant pump is installed at the top of the movable plate, and a conveying pipe is installed through the bottom of the coagulant pump, penetrating the movable plate. A spray pipe is installed at the bottom of the conveying pipe via a telescopic flexible hose. A counterweight is installed around the spray pipe. A top rod is installed on the other side of the housing at the bottom of the threaded rod. This invention can automatically and evenly spray coagulant into the device for oil-water separation and purification, and can maintain optimal filtration and purification for extended periods without requiring frequent inspection and replacement by personnel, saving time and labor.

[0004] The existing technology has the following problems:

[0005] First, existing technologies do not pre-treat suspended solids and sludge in wastewater, and high concentrations of sludge can easily clog subsequent filtration structures.

[0006] Second, existing technologies utilize the linear movement of the spray nozzle to mix the agent, but the dispersion of the agent inside the tank mainly relies on molecular diffusion, and the mixing rate with the sewage is generally low. Utility Model Content

[0007] This utility model provides an oilfield wastewater and sludge pond purification device to solve the problems mentioned in the background art.

[0008] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0009] An oilfield wastewater sludge pond purification device includes a box body, a pretreatment component is fixedly installed on the top left side of the box body, and a linear stirring component is fixedly installed on the front and rear parts of the upper end of the box body.

[0010] The pretreatment component includes a treatment box, with the right side of the treatment box fixedly installed on the top left side of the box body. The front side of the treatment box has inclined through slots at both the top and bottom. Filter plates are movably connected to the inner walls of the two through slots. The diameter of the filter holes of the two filter plates decreases from top to bottom. The left side of the treatment box has matching filter plates through slag discharge slots at both the top and bottom. Inclined guide plates are fixedly installed on the inner walls of the two slag discharge slots. The upper surfaces of the two inclined guide plates are flush with the upper surfaces of the two filter plates.

[0011] The linear stirring assembly includes two guide rods. The left and right ends of the two guide rods are fixedly installed to the front and rear parts of the upper end of the housing. The outer walls of the two guide rods are slidably connected to a sliding plate. The upper middle part of the sliding plate is rotatably connected to a rotating shaft. The upper middle part of the housing has a moving groove that matches the rotating shaft. Several linearly arranged dispersing rods are fixedly installed on the bottom of the outer wall of the rotating shaft. A gear is fixedly sleeved on the top of the outer wall of the rotating shaft. Three connecting brackets are fixedly installed at the rear of the upper end of the housing, behind the rear guide rod. A rack is fixedly installed on the upper end of the three connecting brackets. The outer surface of the gear meshes with the front side of the rack.

[0012] Preferably, baffles are fixedly installed at the upper and lower positions of the left and right sides of the inner wall of the treatment box, the upper ends of two adjacent baffles overlap with the lower left and right sides of the corresponding filter plates, and the two adjacent baffles are located below the corresponding slag discharge trough and through trough.

[0013] Preferably, a connecting plate is fixedly installed on the front side of each of the two filter plates, the rear side of the two connecting plates overlaps with the front side of the treatment box, and a limiting plate is rotatably connected to the upper and lower parts of the front side of the treatment box, respectively above the two filter plates, and the bottom rear side of the two limiting plates overlaps with the front side of the two connecting plates.

[0014] Preferably, a flow guide seat with a size that gradually decreases from left to right is fixedly installed at the bottom of the lower end of the processing box, and drainage grooves are provided through the bottom right side of the processing box and the middle left side of the box body. The bottom of the inner wall of the two drainage grooves is flush with the upper surface of the flow guide seat.

[0015] Preferably, a screw is rotatably connected to the upper front part of the housing, located in front of the two guide rods. A motor is fixedly installed at the right side of the upper front part of the housing. The output end of the motor is fixedly connected to the right end of the screw. A drive block is threadedly connected to the outer wall of the screw. The rear end of the drive block is fixedly connected to the front middle of the slide plate.

[0016] Preferably, a medicine inlet hopper is fixedly installed and connected to the top rear side of the box.

[0017] Preferably, a guide seat with a size that gradually decreases from left to right is fixedly installed on the bottom of the inner wall of the box, a water pump is fixedly installed in the middle of the right side of the box, the input end of the water pump extends into the inside of the box and is located above the guide seat on the right side, the output end of the water pump is fixedly connected to a filter oil separator, and a clarification and disinfection tank is fixedly connected to the left side of the filter oil separator.

[0018] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0019] 1. This utility model provides an oilfield wastewater sludge tank purification device. Through the cooperation of a treatment box, a through channel, filter plates, a slag discharge channel, an inclined guide plate, a baffle, a connecting plate, a limiting plate, a flow guide seat, and a drainage channel, it enables graded filtration of wastewater using filter plates with decreasing filter hole diameters on both the upper and lower sides. Sludge intercepted by the filter plates can be discharged through the slag discharge channel and the inclined guide plate, preventing sludge accumulation and clogging of the filter holes. This allows for the early removal of high-concentration sludge and large suspended solids, reducing the load on the filtration mechanism, extending the equipment's service life, and demonstrating strong practicality.

[0020] 2. This utility model provides a purification device for oilfield wastewater and sludge ponds. Through the cooperation of a guide rod, sliding plate, rotating shaft, moving trough, dispersing rod, gear, connecting frame, rack, screw, motor, drive block, and inlet hopper, it utilizes mechanical stirring instead of simple molecular diffusion, avoiding localized accumulation of the reagent. Furthermore, the linear movement of the dispersing rod covers the entire tank, and combined with the rotational action, it can evenly disperse the reagent added from the inlet hopper to all areas of the tank, improving the reaction rate inside the tank. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall front structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall rear view structure of this utility model;

[0023] Figure 3 This is a schematic cross-sectional view of the overall structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the pretreatment component structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the linear stirring assembly of this utility model.

[0026] In the diagram: 1. Box body; 2. Pretreatment component; 3. Linear stirring component; 4. Guide seat; 5. Water pump; 6. Filter oil separator; 7. Clarification and disinfection tank; 21. Treatment box; 22. Through channel; 23. Filter plate; 24. Slag discharge channel; 25. Inclined guide plate; 26. Baffle; 27. Connecting plate; 28. Limiting plate; 29. ​​Flow guide seat; 210. Drainage channel; 31. Guide rod; 32. Slide plate; 33. Rotating shaft; 34. Moving channel; 35. Dispersing rod; 36. Gear; 37. Connecting frame; 38. Rack; 39. Screw; 310. Motor; 311. Drive block; 312. Inlet hopper. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0028] like Figures 1-5 As shown, an oilfield wastewater sludge pond purification device includes a box 1, a pretreatment component 2 is fixedly installed on the top left side of the box 1, and a linear stirring component 3 is fixedly installed on the front and rear of the upper end of the box 1.

[0029] The pretreatment component 2 includes a treatment box 21. The right side of the treatment box 21 is fixedly installed on the top left side of the box body 1. Inclined through slots 22 are provided through the upper and lower parts of the front side of the treatment box 21. Filter plates 23 are movably connected to the inner walls of the two through slots 22. The diameter of the filter holes of the two filter plates 23 decreases from top to bottom. Slag discharge slots 24 matching filter plates 23 are provided through the upper and lower parts of the left side of the treatment box 21. Inclined guide plates 25 are fixedly installed on the inner walls of the two slag discharge slots 24. The upper surfaces of the two inclined guide plates 25 are flush with the upper surfaces of the two filter plates 23.

[0030] The linear stirring assembly 3 includes two guide rods 31. The left and right ends of the two guide rods 31 are fixedly installed to the front and rear parts of the upper end of the housing 1. The outer walls of the two guide rods 31 are slidably connected to a slide plate 32. The upper middle part of the slide plate 32 is rotatably connected to a rotating shaft 33. The upper middle part of the housing 1 is provided with a moving groove 34 that matches the rotating shaft 33. Several linearly arranged dispersing rods 35 are fixedly installed on the bottom of the outer wall of the rotating shaft 33. A gear 36 is fixedly sleeved on the top of the outer wall of the rotating shaft 33. Three connecting brackets 37 are fixedly installed at the rear of the upper end of the housing 1, behind the rear guide rods 31. A rack 38 is fixedly installed on the upper end of the three connecting brackets 37. The outer surface of the gear 36 meshes with the front side of the rack 38.

[0031] The pretreatment component 2 utilizes filter plates 23 with decreasing pore diameters on both the upper and lower sides to perform graded filtration of wastewater. Sludge intercepted by the filter plates 23 can be discharged through the sludge discharge trough 24 and the inclined guide plate 25, preventing sludge accumulation and clogging of the filter pores. This allows for the early removal of high-concentration sludge and large suspended solids, reducing the load on the filtration mechanism, extending the equipment's service life, and demonstrating strong practicality. The linear stirring component 3 uses mechanical stirring instead of simple molecular diffusion, avoiding localized accumulation of reagents. Furthermore, the linear movement of the dispersing rod 35 covers the entire chamber 1, and in conjunction with its rotational action, it can evenly disperse the reagents added from the inlet hopper 312 into all areas of the chamber 1, improving the reaction rate inside the chamber.

[0032] like Figure 4 As shown, baffles 26 are fixedly installed on the upper and lower parts of the left and right sides of the inner wall of the treatment box 21. The upper ends of two adjacent baffles 26 overlap with the lower left and right parts of the corresponding filter plates 23. Both adjacent baffles 26 are located below the corresponding slag discharge troughs 24 and through troughs 22.

[0033] The four baffles 26 provide support for the two filter plates 23.

[0034] like Figure 4 and Figure 5 As shown, connecting plates 27 are fixedly installed on the front side of both filter plates 23. The rear side of the two connecting plates 27 overlaps with the front side of the treatment box 21. Limiting plates 28 are rotatably connected to the upper and lower parts of the front side of the treatment box 21, respectively, above the two filter plates 23. The bottom rear side of the two limiting plates 28 overlaps with the front side of the two connecting plates 27.

[0035] Two rotatable limiting plates 28 can limit the two filter plates 23 by restricting the two connecting plates 27, ensuring the filtration stability of the filter plates 23.

[0036] like Figure 5 As shown, a guide seat 29 with a size that gradually decreases from left to right is fixedly installed at the bottom of the lower end of the processing box 21. Drainage grooves 210 are provided through the bottom right side of the processing box 21 and the middle left side of the box body 1. The bottom of the inner wall of the two drainage grooves 210 is flush with the upper surface of the guide seat 29.

[0037] The filtered wastewater flows into the interior of the housing 1 through the guide seat 29 and the drainage channel 210.

[0038] like Figure 3 and Figure 5 As shown, a screw 39 is rotatably connected to the upper front part of the housing 1, located in front of the two guide rods 31. A motor 310 is fixedly installed on the right side of the upper front part of the housing 1. The output end of the motor 310 is fixedly connected to the right end of the screw 39. A drive block 311 is threadedly connected to the outer wall of the screw 39. The rear end of the drive block 311 is fixedly connected to the front middle of the slide plate 32.

[0039] The output of motor 310 can drive screw 39 to rotate, and drive block 311 drives slide plate 32 and rotating shaft 33 to move linearly through threaded connection with it. Guide rod 31 has a guiding function for both drive block 311 and slide plate 32.

[0040] like Figure 3 As shown, a medicine inlet hopper 312 is fixedly installed and connected to the top rear side of the box 1.

[0041] like Figure 1 and Figure 2 As shown, a guide seat 4 with a size that gradually decreases from left to right is fixedly installed on the bottom of the inner wall of the box 1. A water pump 5 is fixedly installed in the middle of the right side of the box 1. The input end of the water pump 5 extends into the inside of the box 1 and is located above the guide seat 4 on the right side. The output end of the water pump 5 is fixedly connected to a filter oil separator 6. A clarification and disinfection tank 7 is fixedly connected to the left side of the filter oil separator 6.

[0042] After the reaction, the wastewater flows to the right side of the tank under the guidance of the guide seat 4, and is sent to the oil-water separator 6 by the water pump 5 to remove oil and some impurities. Then it flows into the clarification and disinfection tank 7 for further purification and disinfection to meet the discharge standards or reuse standards.

[0043] The working principle of this utility model is as follows: During use, oilfield wastewater enters from the top of the treatment tank 21, first passing through the upper filter plate 23, whose larger pores intercept large suspended solids and sludge. The wastewater continues downwards, passing through the lower filter plate 23 with smaller pores for further filtration. The intercepted sludge is discharged from the sludge discharge trough 24 along the inclined surface of the filter plate 23 via the inclined guide plate 25. A collection device or transmission device is typically installed below the two inclined guide plates 25, depending on the actual situation. A baffle 26 supports the filter plates 23 and prevents sludge backflow. The filtered wastewater flows into the tank body 1 through the guide seat 29 and the drainage trough 210. Furthermore, after long-term use, the two filter plates 23 can be disassembled by rotating the limiting plate 28 and using the connecting plate 27 for easy cleaning and maintenance.

[0044] Chemicals are added into the tank 1 through the inlet hopper 312. The motor 310 starts, driving the screw 39 to rotate. The drive block 311 moves along the screw, causing the slide plate 32 to slide left and right on the guide rod 31. Simultaneously, the gear 36 on the rotating shaft 33 meshes with the rack 38, causing the shaft to rotate and driving the dispersing rod 35 to rotate. Under the combined motion of left-right movement and rotation, the dispersing rod 35 thoroughly mixes the chemicals within the tank, accelerating the reaction between the chemicals and the wastewater. Finally, the reacted wastewater, guided by the guide seat 4, flows to the right side of the tank and is pumped by the water pump 5 into the grease trap 6 to remove oil and some impurities. It then flows into the clarification and disinfection tank 7 for further purification and disinfection, meeting discharge or reuse standards.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A purification device for oilfield wastewater and sludge ponds, comprising a housing (1), characterized in that: A pretreatment component (2) is fixedly installed on the top left side of the box (1), and a linear stirring component (3) is fixedly installed on the front and rear sides of the upper end of the box (1). The pretreatment component (2) includes a treatment box (21). The right side of the treatment box (21) is fixedly installed on the top left side of the box body (1). The upper and lower parts of the front side of the treatment box (21) are provided with inclined through slots (22). The inner walls of the two through slots (22) are movably connected with filter plates (23). The diameter of the filter holes of the two filter plates (23) decreases from top to bottom. The upper and lower parts of the left side of the treatment box (21) are provided with slag discharge slots (24) that match the filter plates (23). The inner walls of the two slag discharge slots (24) are fixedly installed with inclined guide plates (25). The upper surfaces of the two inclined guide plates (25) are flush with the upper surfaces of the two filter plates (23). The linear stirring assembly (3) includes two guide rods (31). The left and right ends of the two guide rods (31) are fixedly installed with the front and rear parts of the upper end of the box (1). The outer walls of the two guide rods (31) are slidably connected with a sliding plate (32). The upper middle part of the sliding plate (32) is rotatably connected with a rotating shaft (33). The upper middle part of the box (1) is provided with a moving groove (34) that matches the rotating shaft (33). The bottom of the outer wall of the rotating shaft (33) is fixedly installed with several linearly arranged dispersing rods (35). The top of the outer wall of the rotating shaft (33) is fixedly sleeved with a gear (36). The upper rear part of the box (1) is fixedly installed with three connecting brackets (37) behind the rear guide rods (31). The upper ends of the three connecting brackets (37) are fixedly installed with racks (38). The outer surface of the gear (36) meshes with the front side of the rack (38).

2. The oilfield wastewater sludge pond purification device according to claim 1, characterized in that: The processing box (21) has baffles (26) fixedly installed on the upper and lower parts of the left and right sides of the inner wall. The upper ends of two adjacent baffles (26) overlap with the lower left and right parts of the corresponding filter plates (23). The two adjacent baffles (26) are located below the corresponding slag discharge trough (24) and through trough (22).

3. The oilfield wastewater sludge pond purification device according to claim 1, characterized in that: A connecting plate (27) is fixedly installed on the front side of each of the two filter plates (23). The rear side of the two connecting plates (27) overlaps with the front side of the treatment box (21). The upper and lower parts of the front side of the treatment box (21) and the positions above the two filter plates (23) are rotatably connected to limit plates (28). The bottom rear side of the two limit plates (28) overlaps with the front side of the two connecting plates (27).

4. The oilfield wastewater sludge pond purification device according to claim 1, characterized in that: The bottom of the processing box (21) is fixedly installed with a guide seat (29) whose size gradually decreases from left to right. Drainage grooves (210) are opened through the bottom right side of the processing box (21) and the middle left side of the box body (1). The bottom of the inner wall of the two drainage grooves (210) is flush with the upper surface of the guide seat (29).

5. The oilfield wastewater sludge pond purification device according to claim 1, characterized in that: A screw (39) is rotatably connected to the upper front part of the housing (1) in front of the two guide rods (31). A motor (310) is fixedly installed on the right side of the upper front part of the housing (1). The output end of the motor (310) is fixedly connected to the right end of the screw (39). A drive block (311) is threadedly connected to the outer wall of the screw (39). The rear end of the drive block (311) is fixedly connected to the front middle of the slide plate (32).

6. The oilfield wastewater sludge pond purification device according to claim 1, characterized in that: The rear top of the box (1) is fixedly installed and connected to a medicine inlet hopper (312).

7. The oilfield wastewater sludge pond purification device according to claim 1, characterized in that: The bottom of the inner wall of the box (1) is fixedly installed with a guide seat (4) whose size gradually decreases from left to right. A water pump (5) is fixedly installed in the middle of the right side of the box (1). The input end of the water pump (5) extends into the box (1) and is located above the right side of the guide seat (4). The output end of the water pump (5) is fixedly connected to a filter oil separator (6). A clarification and disinfection tank (7) is fixedly connected to the left side of the filter oil separator (6).

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