Desulfurization treatment device for oil and gas field wastewater

Abstract

The utility model discloses a desulfurization treatment device for oil and gas field wastewater, which relates to the field of oil and gas field wastewater treatment and comprises a device body, a top plate is mounted at the top of the device body through fastening bolts, a mounting hole is formed in the middle of the top of the top plate, and a bearing seat is further mounted at the top of the top plate. A rotary table is connected into the bearing seat through a bearing, a stirring shaft is installed on the rotary table, and a sliding rod is fixed to the upper portion of one side of the stirring shaft. By arranging the sliding rod, the sliding seat, the sliding groove, the movable plate and the plugging plate, when wastewater is stirred and the inner wall of the device main body does not need to be scraped and cleaned, the scraping rod is not attached to the inner wall of the device main body, so that the scraping rod does not rub with the inner wall of the device main body during rotation, the abrasion speed of the scraping rod is reduced, and the service life of the scraping rod is prolonged. And the service life of the scraping rod is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of oil and gas field wastewater treatment, specifically a desulfurization treatment device for oil and gas field wastewater. Background Technology

[0002] Currently, most oil fields have entered the middle and late stages of oil extraction, with the water content of the extracted crude oil reaching 70%-80%, and in some oil fields even as high as 90%. Oil-water separation generates large amounts of oily wastewater. Oil and gas field wastewater contains numerous pollutants, such as petroleum substances and sulfides. If this wastewater is discharged directly without treatment, it will severely pollute the soil, water bodies, and air, disrupt the ecological balance, and affect the growth of plants and animals and human health. Therefore, it is necessary to treat oil and gas field wastewater.

[0003] The treatment steps for oil and gas field wastewater typically include pretreatment, advanced treatment, and sludge treatment. Advanced treatment includes desulfurization, as sulfides in oil and gas field wastewater can cause serious harm to the environment and equipment. Therefore, the desulfurization step is of great significance in the treatment of oil and gas field wastewater. In the process of treating oil and gas field wastewater, desulfurizing agents are generally added to the wastewater, and then the wastewater and desulfurizing agents are stirred and mixed by a stirring mechanism, so that the sulfides in the wastewater react with the desulfurizing agents to remove the sulfur-containing precipitates in the wastewater, thereby achieving the purpose of desulfurization treatment of wastewater.

[0004] According to Chinese Patent No. CN215288321U, a desulfurization treatment device for chemical wastewater is disclosed. This utility model, through the combination of the above-mentioned structures, enables the alkaline reactant to be evenly thrown into the wastewater, while stirring and mixing the alkaline reactant and wastewater to ensure full contact and reaction. It can also filter and adsorb the wastewater after the reaction, thereby improving the wastewater treatment effect.

[0005] Regarding the aforementioned patent content, an L-shaped rod and a brush are provided to clean the dirt on the inner wall of the device body. However, the position of the brush is difficult to adjust, causing it to always be in contact with the inner wall of the device. When the stirring mechanism agitates the wastewater, the brush rotates continuously and rubs against the inner wall of the device. Over time, this will accelerate the wear rate of the brush and reduce its service life. Utility Model Content

[0006] Based on this, the purpose of this utility model is to provide a desulfurization treatment device for oil and gas field wastewater, so as to solve the technical problem that the brush is always in contact with the inner wall of the device, which will accelerate the wear rate of the brush when it rotates.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a desulfurization treatment device for oil and gas field wastewater, comprising a device body, a top plate mounted on the top of the device body by fastening bolts, and an installation hole at the middle position of the top of the top plate, a bearing seat mounted on the top of the top plate, and a turntable connected inside the bearing seat by bearings, a stirring shaft mounted on the turntable, a sliding rod fixed above one side of the stirring shaft, a sliding seat sleeved on the outer wall of the sliding rod, a scraper mounted on one side of the sliding seat by bolts, and a movable plate fixed on the other side of the sliding seat, a sliding groove opened on the top of the turntable, a sealing plate installed through the sliding groove on the top of the movable plate, two first bolt holes opened on the top of the sealing plate, and a second bolt hole opened on one side of the top of the turntable.

[0008] By adopting the above technical solution, the top plate can be removed from the main body of the device, which makes it easier to remove the stirring shaft and stirring blades for cleaning.

[0009] Furthermore, a locking bolt extending into the second bolt hole is internally threaded into one of the first bolt holes, and the sealing plate is slidably connected to the groove via a movable plate.

[0010] By adopting the above technical solution, when the locking bolt is screwed into the second bolt hole, the sealing plate can be locked and limited, preventing the sealing plate from moving at will.

[0011] Furthermore, a feeding pipe is connected to one side of the top of the top plate, and a liquid inlet pipe is connected to the other side of the top of the top plate. Valves are installed on both the liquid inlet pipe and the feeding pipe.

[0012] By adopting the above technical solution, the inlet pipe can be used to add wastewater into the main body of the device, while the feed pipe can be used to add desulfurizing agent into the main body of the device.

[0013] Furthermore, a gasket is installed inside the liquid inlet pipe, and a filter screen is placed on top of the gasket. Two pull rods are installed on both sides of the top of the filter screen, and a sealing ring is provided on the outer wall of the filter screen. The sealing ring is made of fluororubber material.

[0014] By adopting the above technical solution, the filter screen can filter wastewater and improve the filtration efficiency of wastewater.

[0015] Furthermore, a motor is also installed on the top of the main body of the device, and the output end of the motor is connected to a drive gear.

[0016] By adopting the above technical solution, if it is necessary to rotate the turntable, the motor can be started, and the motor can drive the drive gear to rotate when it is working.

[0017] Furthermore, a driven gear is installed at the top of the stirring shaft, which meshes with the driving gear, and multiple stirring blades are installed on the outer wall of the stirring shaft.

[0018] By adopting the above technical solution, when the driving gear rotates, it will drive the driven gear to rotate, which in turn drives the stirring shaft to rotate.

[0019] Furthermore, one side of the scraper is fitted against the inner wall of the device body, and the scraper is detachably connected to the slide block.

[0020] By adopting the above technical solution, the inner wall of the main body of the device can be scraped and cleaned when the scraper rotates.

[0021] Furthermore, the turntable is located inside the mounting hole.

[0022] By adopting the above technical solution, the turntable can rotate inside the mounting hole.

[0023] Furthermore, a discharge pipe is connected to the bottom of the main body of the device, and a solenoid valve is installed on the discharge pipe.

[0024] By adopting the above technical solution, when discharge is required, the solenoid valve can be opened so that water can be discharged through the discharge pipe.

[0025] Furthermore, the scraper is slidably connected to the slide rod via a slide block, the bottom of the sealing plate is in contact with the top of the turntable, and the size of the sealing plate is larger than the size of the slide groove.

[0026] By adopting the above technical solution, when the slide block slides on the slide rod, it will drive the scraper to move so as to adjust the position of the scraper.

[0027] In summary, the present invention has the following main advantages:

[0028] 1. This utility model, by incorporating a sliding rod, sliding seat, sliding groove, movable plate, and sealing plate, ensures that when wastewater is being agitated and the inner wall of the device body does not require scraping or cleaning, the scraper rod does not adhere to the inner wall of the device body. This prevents friction between the scraper rod and the inner wall during rotation, thus slowing down the wear rate of the scraper rod and extending its service life. When the desulfurized wastewater is discharged through the discharge pipe and it is necessary to clean the dirt adhering to the inner wall of the device body, the operator can first unscrew the locking bolts and then push the sealing plate. The sealing plate moves the movable plate, which in turn moves the slide block, which in turn moves the scraper, causing the scraper to fit against the inner wall of the device body. At this point, the first bolt hole on the right side aligns with the second bolt hole. Then, the locking bolt is screwed into the first and second bolt holes to lock the sealing plate. When the stirring shaft rotates, it will drive the scraper to rotate, and the scraper can clean the inner wall of the device body. After cleaning, the scraper is moved so that it does not fit against the inner wall of the device body.

[0029] 2. This utility model is equipped with locking bolts to lock the sealing plate, thereby improving the stability of the sealing plate and the movable plate, preventing the scraper from moving arbitrarily, and improving the stability of the scraper. A sliding rod is also provided to guide the sliding block and the scraper. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the overall orthographic structure of this utility model;

[0032] Figure 3 This is a schematic diagram of the side structure of the drive gear of this utility model;

[0033] Figure 4 This is a schematic diagram of the stirring blade structure of this utility model;

[0034] Figure 5 This is a schematic diagram of the turntable structure of this utility model;

[0035] Figure 6 This is a schematic diagram of the filter screen structure of this utility model;

[0036] Figure 7 This is a schematic diagram of the scraper structure of this utility model;

[0037] Figure 8 For the present utility model Figure 2 A magnified structural diagram of point A in the middle.

[0038] In the diagram: 1. Main body of the device; 2. Discharge pipe; 3. Solenoid valve; 4. Feed pipe; 5. Valve; 6. Liquid inlet pipe; 7. Motor; 8. Bearing housing; 9. Sealing ring; 10. Mounting hole; 11. Turntable; 12. Stirring shaft; 13. Driven gear; 14. Driven gear; 15. Stirring blade; 16. Washer ring; 17. Filter screen; 18. Slide groove; 19. Tie rod; 20. Scraper rod; 21. Slide rod; 22. Slide seat; 23. Locking bolt; 24. Movable plate; 25. Sealing plate; 26. First bolt hole; 27. Second bolt hole; 28. Top plate. Detailed Implementation

[0039] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0040] The embodiments of this utility model will be described below based on its overall structure.

[0041] Example 1: A desulfurization treatment device for oil and gas field wastewater, such as... Figures 1-8 As shown, the device includes a main body 1. A top plate 28 is installed on the top of the main body 1 by fastening bolts. A sealing ring made of fluororubber is provided between the top plate 28 and the main body 1. A feeding pipe 4 is connected to one side of the top of the top plate 28, and a liquid inlet pipe 6 is connected to the other side of the top of the top plate 28. Valves 5 are installed on both the liquid inlet pipe 6 and the feeding pipe 4. The liquid inlet pipe 6 allows wastewater to be added into the interior of the main body 1, while the feeding pipe 4 allows desulfurizing agent to be added into the interior of the main body 1. A discharge pipe 2 is connected to the bottom of the main body 1. A solenoid valve 3 is installed on the discharge pipe 2. When discharge is required, the solenoid valve 3 can be opened to allow water to be discharged through the discharge pipe 2. Three support feet are installed at the bottom of the main body 1, and the three support feet are distributed in a triangle.

[0042] Specifically, a mounting hole 10 is provided at the middle of the top of the top plate 28. A bearing seat 8 is also installed on the top of the top plate 28, and a turntable 11 is connected to the inside of the bearing seat 8 through a bearing. A stirring shaft 12 is installed on the turntable 11, and a slide rod 21 is fixed above one side of the stirring shaft 12. The turntable 11 is located inside the mounting hole 10. A sealing ring 9 is provided between the turntable 11 and the mounting hole 10, and the sealing ring 9 is made of fluororubber material so that the turntable 11 can rotate inside the mounting hole 10. A slide seat 22 is fitted on the outer wall of the slide rod 21, and a scraper 20 is installed on one side of the slide seat 22 by bolts. A movable plate 24 is fixed on the other side of the slide seat 22. A groove 18 is provided on the top of the turntable 11, and a sealing plate 25 is installed on the top of the movable plate 24 through the groove 18.

[0043] See Figures 2-7 The top of the sealing plate 25 has two first bolt holes 26, and the top side of the turntable 11 has a second bolt hole 27. The top plate 28 can be removed from the main body 1 of the device to facilitate the removal of the stirring shaft 12 and stirring blade 15 for cleaning. One side of the scraper 20 is attached to the inner wall of the main body 1 of the device. The scraper 20 is detachably connected to the slide 22. When the scraper 20 rotates, it can scrape and clean the inner wall of the main body 1 of the device. The scraper 20 is slidably connected to the slide 21 through the slide 22. The bottom of the sealing plate 25 is attached to the top of the turntable 11. The size of the sealing plate 25 is larger than the size of the slide groove 18. When the slide 22 slides on the slide 21, it will drive the scraper 20 to move so as to adjust the position of the scraper 20.

[0044] Specifically, a locking bolt 23 extending into a second bolt hole 27 is connected to the internal thread of a first bolt hole 26. A sealing strip made of fluororubber is provided at the bottom of the sealing plate 25. The sealing plate 25 is slidably connected to the slide groove 18 through a movable plate 24. When the locking bolt 23 is screwed into the second bolt hole 27, the sealing plate 25 can be locked and limited to prevent it from moving at will. A motor 7 is also installed on the top of the main body 1, and the output end of the motor 7 is connected to a drive gear 14. If the turntable 11 needs to be rotated, the motor 7 can be started. When the motor 7 is working, it can drive the drive gear 14 to rotate. A driven gear 13 is installed at the top of the stirring shaft 12. The driven gear 13 meshes with the drive gear 14. Multiple stirring blades 15 are installed on the outer wall of the stirring shaft 12. When the drive gear 14 rotates, it will drive the driven gear 13 to rotate, and then drive the stirring shaft 12 to rotate.

[0045] Example 2: Based on Example 1 above, the following structure will be set up to facilitate the filtration of wastewater.

[0046] See Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 8 The inlet pipe 6 has a gasket 16 installed inside, and a filter screen 17 is placed on top of the gasket 16. Two pull rods 19 are installed on both sides of the top of the filter screen 17. The outer wall of the filter screen 17 is provided with a sealing ring, which is made of fluororubber. The filter screen 17 can filter wastewater and improve the filtration efficiency of wastewater. The filter screen 17 is detached from the inlet pipe 6. When removing the filter screen 17, the operator only needs to pull the pull rod 19 upward to remove the filter screen 17 from the inlet pipe 6.

[0047] The working principle of this utility model is as follows: First, when using it, connect the power supply, then open the valve on the inlet pipe 6, and then add the chemical wastewater into the inlet pipe 6. The filter screen 17 can filter the wastewater. The filtered wastewater flows into the main body 1 of the device. After the wastewater is added, the operator starts the motor 7. The motor 7 can drive the drive gear 14 to rotate, which in turn drives the driven gear 13 to rotate and drives the stirring shaft 12 to rotate. Then it drives the stirring blade 15 to rotate. At the same time, open the valve 5 on the feeding pipe 4, and then add an appropriate amount of desulfurizing agent into the main body 1 of the device through the feeding pipe 4. The stirring blade 15 stirs and mixes the wastewater and the desulfurizing agent so that the two can fully contact and react. After desulfurization, open the solenoid valve 3, and the wastewater is discharged through the discharge pipe 2.

[0048] Furthermore, when the wastewater is agitated and there is no need to scrape and clean the inner wall of the device body 1, the scraper 20 does not come into contact with the inner wall of the device body 1, so that the rotation of the scraper 20 will not rub against the inner wall of the device body 1, thereby slowing down the wear rate of the scraper 20.

[0049] When the wastewater is discharged and the dirt attached to the inner wall of the main body 1 needs to be scraped and cleaned, the operator can first unscrew the locking bolt 23, then push the sealing plate 25, so that the sealing plate 25 drives the movable plate 24 to move, the movable plate 24 drives the slide 22 to move, and then drives the scraper 20 to move, so that the scraper 20 is in contact with the inner wall of the main body 1. At this time, the first bolt hole 26 on the right side is aligned with the second bolt hole 27. Then, the locking bolt 23 is screwed into the first bolt hole 26 and the second bolt hole 27 to lock the sealing plate 25. Then, the motor 7 is started, so that the stirring shaft 12 rotates. When the stirring shaft 12 rotates, it will drive the scraper 20 to rotate. The scraper 20 can clean the inner wall of the main body 1. After cleaning, the scraper 20 is reset and moved so that the scraper 20 is not in contact with the inner wall of the main body 1. Then, the sealing plate 25 is locked with the locking bolt 23.

[0050] Meanwhile, the top plate 28 is connected to the main body 1 of the device by fastening bolts, so the top plate 28 can be removed from the main body 1 of the device, and the stirring blade 15 and other structures can be taken out from the inside of the main body 1 of the device for cleaning. After the scraper 20 is taken out from the inside of the main body 1 of the device, since the scraper 20 is connected to the slide block 22 by bolts, the staff can also disassemble and replace the scraper 20.

[0051] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A desulfurization treatment device for oil and gas field wastewater, comprising a device main body (1), characterized in that: The top of the main body (1) of the device is fitted with a top plate (28) by fastening bolts, and an installation hole (10) is provided at the middle position of the top of the top plate (28). A bearing seat (8) is also installed on the top of the top plate (28), and a turntable (11) is connected to the inside of the bearing seat (8) by bearings. A stirring shaft (12) is installed on the turntable (11), and a slide rod (21) is fixed above one side of the stirring shaft (12). A slide seat (22) is fitted on the outer wall of the slide rod (21), and a scraper (20) is installed on one side of the slide seat (22) by bolts. A movable plate (24) is fixed on the other side of the slide seat (22). A slide groove (18) is provided on the top of the turntable (11). A sealing plate (25) is installed through the slide groove (18) on the top of the movable plate (24). Two first bolt holes (26) are provided on the top of the sealing plate (25), and a second bolt hole (27) is provided on one side of the top of the turntable (11).

2. A device for desulphurization treatment of oil and gas field wastewater according to claim 1, characterized in that: The first bolt hole (26) has an internal threaded connection with a locking bolt (23) extending into the second bolt hole (27), and the sealing plate (25) is slidably connected to the groove (18) via a movable plate (24).

3. A device for desulphurization treatment of oil and gas field wastewater according to claim 1, characterized in that: The top of the top plate (28) is connected to a feeding pipe (4) on one side and to an inlet pipe (6) on the other side. Both the inlet pipe (6) and the feeding pipe (4) are equipped with valves (5).

4. A device for desulphurization treatment of oil and gas field wastewater according to claim 3, characterized in that: The inlet pipe (6) is equipped with a gasket (16) inside, and a filter screen (17) is placed on the top of the gasket (16). Two pull rods (19) are installed on both sides of the top of the filter screen (17). The outer wall of the filter screen (17) is provided with a sealing ring, and the sealing ring is made of fluororubber material.

5. A device for desulphurization treatment of oil and gas field wastewater according to claim 1, characterized in that: The top of the main body (1) of the device is also equipped with a motor (7), and the output end of the motor (7) is connected to a drive gear (14).

6. A device for desulphurization treatment of oil and gas field wastewater according to claim 5, characterized in that: A driven gear (13) is installed at the top of the stirring shaft (12), and the driven gear (13) meshes with the driving gear (14). A plurality of stirring blades (15) are installed on the outer wall of the stirring shaft (12).

7. A device for desulphurization treatment of oil and gas field wastewater according to claim 1, characterized in that: One side of the scraper (20) is attached to the inner wall of the device body (1), and the scraper (20) is detached from the slide (22).

8. A device for desulphurization treatment of oil and gas field wastewater according to claim 1, characterized in that: The turntable (11) is located inside the mounting hole (10).

9. A device for desulphurization treatment of oil and gas field wastewater according to claim 1, characterized in that: The bottom of the main body (1) of the device is connected to a discharge pipe (2), and a solenoid valve (3) is installed on the discharge pipe (2).

10. A device for desulphurization treatment of oil and gas field wastewater according to claim 1, characterized in that: The scraper (20) is slidably connected to the slide rod (21) via the slide block (22), the bottom of the sealing plate (25) is in contact with the top of the turntable (11), and the size of the sealing plate (25) is larger than the size of the chute (18).

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