Oil drilling wastewater treatment equipment

Abstract

The present application relates to sewage treatment technical field, specifically said is a kind of oil drilling sewage treatment equipment, including shell, shell is separated into processing cavity and sludge collection cavity by partition, the top of processing cavity is fixedly connected with first fixed plate, the first fixed plate is obliquely provided with flow guide assembly below, flow guide assembly includes obliquely arranged inclined plate, several micropores are arranged in the lower end of inclined plate, cleaning mechanism is arranged in sludge collection cavity, cleaning mechanism includes the second sliding block reciprocating along the bottom of shell, the inside of inclined plate is provided with air floatation mechanism, the upper end of inclined plate is provided with material scraping mechanism, material scraping mechanism includes scraper;Through the inclined plate oblique arrangement and the design of micropore in the inclined plate, the floating oil is efficiently floated and the silt is blocked, the air floatation mechanism releases micro-bubble and peels off the adherend on the plate surface, and the sludge is automatically discharged in linkage with the second sliding block;Material scraping mechanism drives scraper to move through trapezoidal sliding groove, and the floating oil on the upper end of inclined plate is recycled, and the three functions of flow guide, air floatation and material scraping are integrated.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a wastewater treatment device for oil drilling. Background Technology

[0002] Oil drilling wastewater treatment equipment is a technical device specifically designed to treat the complex wastewater generated during oil drilling. It is an environmentally friendly equipment that integrates physical, chemical, and biological treatment technologies. Its core function is to remove pollutants such as oil, heavy metals, suspended solids, and organic matter from drilling wastewater, ensuring that the wastewater meets discharge or reuse standards and preventing soil and water pollution. Therefore, it is necessary to effectively remove pollutants from oil drilling wastewater and ensure that the treated water quality meets national or local discharge standards or reuse requirements, thereby preventing soil and water pollution and protecting the ecological environment.

[0003] Wastewater generated during oil drilling contains complex pollutants such as oil, silt, and floating debris. Existing treatment equipment has significant technical deficiencies. Design flaws in the drainage system of existing oil drilling wastewater treatment equipment lead to sludge accumulation, requiring frequent manual cleaning, increasing operating costs, and causing excessive sludge deposition, affecting the stability of oil sludge settling. At low temperatures, the viscosity of produced fluid increases, resulting in insufficient oil-water separation. The treated water contains excessive oil, making it difficult to meet discharge or reinjection requirements. Oil spills can cause water pollution, affecting the respiration and photosynthesis of aquatic organisms, and even causing their death. Before treatment, the water in oil drilling wastewater usually contains oil, which may exist in various forms, including floating oil. Floating oil combines with silt to form oily sludge, requiring additional treatment. Summary of the Invention

[0004] To address the problems in the prior art, this invention provides an oil drilling wastewater treatment device.

[0005] The technical solution adopted by the present invention to solve its technical problem is: an oil drilling wastewater treatment device, including a shell, the shell being divided into a treatment chamber and a sludge collection chamber by a partition, a first fixed plate being fixedly connected to the top of the treatment chamber, a flow guiding component being inclinedly arranged below the first fixed plate, the flow guiding component including an inclined plate, the lower end of the inclined plate having several micro-holes to peel off oil and particulate impurities adhering to the surface of the inclined plate, a cleaning mechanism being provided in the sludge collection chamber, the cleaning mechanism including a second sliding block reciprocating along the bottom of the shell for removing sludge and impurities deposited at the bottom of the shell, an air flotation mechanism being provided inside the inclined plate for cleaning impurities adhering to the lower end of the inclined plate, and a scraping mechanism being provided at the upper end of the inclined plate for collecting oil and floating matter at the upper end of the inclined plate, the scraping mechanism including a scraper;

[0006] By tilting the plate and combining it with the micropore design within the plate, the floating oil is efficiently floated up while blocking silt. The air flotation mechanism releases microbubbles to peel off the deposits on the plate surface and automatically discharges sludge in conjunction with the second sliding block. The scraping mechanism drives the scraper to move through the trapezoidal chute to recover the floating oil at the top of the inclined plate. It integrates three functions: flow guidance, air flotation, and scraping, adapting to low-temperature and high-viscosity wastewater and reducing manual intervention and energy consumption.

[0007] Preferably, a first sleeve is fixedly connected to the inner surface of the shell, a connecting pipe is fixedly connected to the surface of the first sleeve, a filter screen is fixedly connected to the surface of the partition, a support plate is fixedly connected to one end of the filter screen, a drainage chamber is fixedly connected to the surface of the support plate, an arc-shaped plate is fixedly connected to the inner bottom surface of the shell, a collection chamber is fixedly connected to the inner surface of the shell, and a water inlet pipe is fixedly connected to the inside of the shell.

[0008] Preferably, the first fixing plate has a first sliding groove inside, and the first fixing plate also has a second sliding groove inside.

[0009] Preferably, the lower end of the inclined plate is provided with several small holes, and the upper end of the inclined plate is fixedly connected to a first inclined block.

[0010] Preferably, the cleaning mechanism includes a fixed block, the lower end of which is fixedly connected to the first sleeve, the upper end of which is rotatably connected to the non-output end of a hydraulic cylinder, the output end of which is fixedly connected to a second sleeve, the surface of which is fixedly connected to a second fixed plate, the lower end of which is fixedly connected to a first steel wire rope, and the surface of which is fitted with a rotating pin.

[0011] Preferably, the cleaning mechanism further includes a third sleeve, with the two ends of the rotating pin rotatably connected to the third sleeve, the third sleeve being fixedly connected to the housing, one end of the first wire rope being fixedly connected to a first sliding block, one end of the first sliding block being fixedly connected to a first compression spring, one end of the first compression spring being fixedly connected to the third sleeve, one end of the first sliding block being fixedly connected to a second sliding block, the interior of the second sliding block having a hollow groove, and one end of the second sliding block being slidably connected to a second tilting block.

[0012] Preferably, the air flotation mechanism includes a second steel wire rope, which is fixedly connected to the second fixed plate. A piston is fixedly connected to the lower end of the second steel wire rope, and a second compression spring is fixedly connected to the upper end of the piston. The upper end of the second compression spring is fixedly connected to the first sleeve.

[0013] Preferably, the scraping mechanism includes a sliding rod, which is elastically connected to the second sleeve via a spring, and a scraper is fixedly connected to the lower end surface of the second sleeve.

[0014] The beneficial effects of this invention are:

[0015] (1) The oil drilling wastewater treatment equipment described in this invention uses inclined plates to guide the flow and baffles to block the flow, so that the floating oil can float in a directional manner and the mud and sand can automatically settle into the hollow tank. Combined with the filter screen, the water quality is deeply purified and the oil content of the effluent is low. The air flotation mechanism cleans the plate surface with microbubbles and the scraping mechanism removes mud in a linkage manner, which solves the problem of low temperature adhesion. The whole process is automated, reducing manual intervention and energy consumption, and meeting the standards for oil drilling wastewater reinjection.

[0016] (2) The oil drilling wastewater treatment equipment of the present invention adopts a structure in which the hydraulic cylinder moves to one end, which drives the second sliding block to move to one end, which drives the hollow groove to approach the second inclined block, so that the hollow groove enters the interior of the second inclined block. At the same time, the hollow groove will move away from the shell, and the mud, sand and impurity particles inside the hollow groove will be discharged from the equipment under the action of gravity.

[0017] (3) The oil drilling wastewater treatment equipment of the present invention, through the structure set, when the second sleeve moves to one end, it will drive the piston to compress the air inside the first sleeve. The air inside the first sleeve will enter the inclined plate. The air will be discharged from several small holes at the lower end of the inclined plate. The air discharged from several small holes at the lower end of the inclined plate can clean the particulate impurities, sludge and floating matter attached to the lower surface of the inclined plate.

[0018] (4) The oil drilling wastewater treatment equipment described in this invention uses a second sleeve to move to one end, which simultaneously drives a scraper to clean the oil, lubricating oil, and floating matter floating on the upper part of the inclined plate. It also links an air flotation mechanism to clean the plate surface and uses a hollow trough to automatically discharge sludge, thus solving the problem of oil adhering to low-temperature, high-viscosity wastewater. The fully automated treatment reduces manual intervention and improves the efficiency and reuse quality of oil drilling wastewater. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the connection structure between the shell and the partition.

[0022] Figure 3 This is a sectional view of the overall structure;

[0023] Figure 4 This is a schematic diagram of the connection structure between the inclined plate and the first inclined block.

[0024] Figure 5 This is a schematic diagram of the connection structure between the second sliding block and the second tilting block;

[0025] Figure 6 This is a schematic diagram of the connection structure between the water inlet pipe and the shell;

[0026] Figure 7 This is a sectional view of the internal structure of the third sleeve;

[0027] Figure 8 This is a schematic diagram of the connection structure between the second sleeve and the scraper.

[0028] In the diagram: 100, shell; 101, partition plate; 102, first sleeve; 103, connecting pipe; 104, filter screen; 105, support plate; 106, drainage chamber; 107, arc-shaped plate; 108, collection chamber; 109, water inlet pipe; 200, first fixing plate; 201, first chute; 202, second chute; 300, inclined plate; 301, first inclined block; 400, cleaning mechanism; 401, fixing block; 402, hydraulic cylinder; 403. Second sleeve; 404. Second fixed plate; 405. First wire rope; 406. Rotating pin; 407. Third sleeve; 408. First sliding block; 409. First compression spring; 410. Second sliding block; 4101. Hollow groove; 411. Second tilting block; 500. Air flotation mechanism; 501. Second wire rope; 502. Piston; 503. Second compression spring; 600. Scraping mechanism; 601. Sliding rod; 602. Scraper. Detailed Implementation

[0029] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0030] like Figures 1-8 As shown, the present invention provides an oil drilling wastewater treatment device, comprising: 1. An oil drilling wastewater treatment device, including a housing 100, wherein the housing 100 is divided into a treatment chamber and a sludge collection chamber by a partition 101; a first fixing plate 200 is fixedly connected to the top of the treatment chamber; a flow guiding assembly is inclinedly arranged below the first fixing plate 200; the flow guiding assembly includes an inclined plate 300, the lower end of which has several micro-holes to peel off oil and particles adhering to the surface of the inclined plate 300. Impurities: A cleaning mechanism 400 is provided inside the mud collection chamber. The cleaning mechanism 400 includes a second sliding block 410 that reciprocates along the bottom of the shell 100 to remove mud and sand impurities deposited at the bottom of the shell 100. An air flotation mechanism 500 is provided inside the inclined plate 300 to clean impurities attached to the lower end of the inclined plate 300. A scraping mechanism 600 is provided at the upper end of the inclined plate 300 to collect oil and floating matter at the upper end of the inclined plate 300. The scraping mechanism 600 includes a scraper 602.

[0031] By tilting the inclined plate 300 and combining it with the microporous design within the inclined plate 300, the floating oil is efficiently floated up and the silt is blocked. The air flotation mechanism 500 releases microbubbles to peel off the deposits on the plate surface and automatically discharges sludge in conjunction with the second sliding block 410. The scraping mechanism 600 drives the scraper 602 to move through the trapezoidal chute to recover the floating oil at the top of the inclined plate 300. It integrates the three functions of flow guidance, air flotation, and scraping, adapts to low-temperature and high-viscosity wastewater, and reduces manual intervention and energy consumption.

[0032] Specifically, a first sleeve 102 is fixedly connected to the inner surface of the housing 100, a connecting pipe 103 is fixedly connected to the surface of the first sleeve 102, a filter screen 104 is fixedly connected to the surface of the partition 101, a support plate 105 is fixedly connected to one end of the filter screen 104, a drainage chamber 106 is fixedly connected to the surface of the support plate 105, an arc-shaped plate 107 is fixedly connected to the inner bottom surface of the housing 100, a collection chamber 108 is fixedly connected to the inner surface of the housing 100, and a water inlet pipe 109 is fixedly connected to the inside of the housing 100. Wastewater generated from oil drilling is introduced through the water inlet pipe 109 and enters the interior of the housing 100. An arc-shaped plate 107 is provided at the bottom of the interior of the housing 100. Plate 107 serves to block silt and allow it to settle into the hollow trough 4101. Floating oil and debris in the wastewater entering the shell 100 will float up along the inclined plate 300 to its upper end. The top of the inclined plate 300 is at the same height as the support plate 105. Several small holes are provided on the lower surface of the inclined plate 300. Impurities and silt in the oil drilling wastewater will settle into the hollow trough 4101 under gravity. The baffle 101 inside the shell 100 serves to block floating oil and debris. Floating oil and debris can only float upwards in the wastewater and cannot sink. Water will bypass the baffle 101 and be filtered by the filter screen 104, thus obtaining relatively clean water that enters the drainage chamber 106, allowing the treated clean water to be discharged from the equipment from the drainage chamber 106.

[0033] In addition, a first groove 201 is provided inside the first fixing plate 200, and a second groove 202 is also provided inside the first fixing plate 200.

[0034] Specifically, the lower end of the inclined plate 300 is provided with several small holes, and the upper end of the inclined plate 300 is fixedly connected with a first inclined block 301.

[0035] Furthermore, the cleaning mechanism 400 includes a fixing block 401, the lower end of which is fixedly connected to the first sleeve 102. The upper end of the fixing block 401 is rotatably connected to the non-output end of the hydraulic cylinder 402. The output end of the hydraulic cylinder 402 is fixedly connected to a second sleeve 403. A second fixing plate 404 is fixedly connected to the surface of the second sleeve 403. A first steel wire rope 405 is fixedly connected to the lower end of the second fixing plate 404. A rotating pin 406 is attached to the surface of the first steel wire rope 405. Both ends of the rotating pin 406 rotate. A third sleeve 407 is connected to the housing 100. One end of the first wire rope 405 is fixedly connected to a first sliding block 408. One end of the first sliding block 408 is fixedly connected to a first compression spring 409. One end of the first compression spring 409 is fixedly connected to the third sleeve 407. One end of the first sliding block 408 is fixedly connected to a second sliding block 410. The second sliding block 410 has a hollow groove 4101 inside. One end of the second sliding block 410 is slidably connected to a second tilting block 411.

[0036] It should be noted that when the hydraulic cylinder 402 moves to one end, it will cause the second sleeve 403 to move to one end. The movement of the second sleeve 403 will cause the second fixed plate 404 to move to one end. The movement of the second fixed plate 404 will cause the first wire rope 405 to move to one end. The first wire rope 405 will be deflected by multiple rotating pins 406. The movement of the first wire rope 405 to one end will then cause the first sliding block 408 to move to one end. When block 408 moves to one end, it compresses the first compression spring 409. When the first sliding block 408 moves to one end, it drives the second sliding block 410 to move away from the end of the water inlet pipe 109. When the second sliding block 410 moves to one end, it drives the hollow groove 4101 to approach the second inclined block 411, so that the hollow groove 4101 enters the interior of the second inclined block 411. At the same time, the hollow groove 4101 will move away from the housing 100. At this time, the mud, sand and impurity particles inside the hollow groove 4101 will be discharged from the equipment under the action of gravity.

[0037] Further, the air flotation mechanism 500 includes a second steel wire rope 501, which is fixedly connected to the second fixed plate 404. A piston 502 is fixedly connected to the lower end of the second steel wire rope 501, and a second compression spring 503 is fixedly connected to the upper end of the piston 502. The upper end of the second compression spring 503 is fixedly connected to the first sleeve 102. When the second fixed plate 404 moves to one end, it drives the second steel wire rope 501 to move to one end, and the movement of the second steel wire rope 501 to one end drives... Piston 502 moves upward, compressing spring 503 and air inside first sleeve 102. The compressed air enters connecting pipe 103 and then into inclined plate 300. The air exits through several small holes at the bottom of inclined plate 300, cleaning particulate impurities, sludge, and floating matter attached to the lower surface of inclined plate 300.

[0038] It should be noted that the scraping mechanism 600 includes a sliding rod 601, which is elastically connected to the second sleeve 403 via a spring. A scraper 602 is fixedly connected to the lower end surface of the second sleeve 403. When the second sleeve 403 moves to one end, it will drive the sliding rod 601 to move to one end. The sliding rod 601 initially slides within the first groove 201. The depth of the first groove 201 gradually decreases along the forward direction of the hydraulic cylinder 402. The first fixed plate 200 also has a second groove 202 inside, which gradually increases in depth along the forward direction of the hydraulic cylinder 402. The first groove 201 and the second groove 202 are connected to form a closed trapezoid. The first groove 201 is located at the upper end of the second groove 202, which is similar to a downward-curving arc. The second slide 202 is located at the lower end of the first slide 201 and is horizontally straight. The sliding rod 601 is initially located in the first slide 201. The sliding rod 601 slides from the first slide 201 to the second slide 202. During this process, the second sleeve 403 will drive the scraper 602 to slide upward. When the hydraulic cylinder 402 is reset, it will drive the sliding rod 601 to slide in the second slide 202. The second slide 202 is located at the lower end of the first slide 201. At this time, the second sleeve 403 will drive the scraper 602 to scrape out the oil, lubricating oil and floating objects floating on the upper end of the inclined plate 300. The inclined plate 300 is made of rubber and has a certain elasticity. With the cooperation of the first inclined block 301, the inclined plate 300 scrapes the oil, lubricating oil and floating objects into the collection bin 108.

[0039] Working Principle: In operation, wastewater from oil drilling is first introduced through the inlet pipe 109. This wastewater enters the interior of the casing 100. An arc-shaped plate 107 is installed at the bottom of the interior of the casing 100. This plate blocks sediment, allowing it to settle into the hollow groove 4101. Floating oil and debris in the wastewater entering the casing 100 rise along the inclined plate 300 to its upper end. The top of the inclined plate 300 is at the same height as the support plate 105. Several small holes are provided on the lower surface of the inclined plate 300, allowing impurities and sediment in the wastewater to settle into the hollow groove 4101 under gravity. The partition inside the casing 100... Part 101 serves to block floating oil and debris, which can only float upwards and cannot sink in the sewage. Water bypasses partition 101 and is filtered by filter screen 104, resulting in cleaner water that enters the drainage chamber 106. The treated clean water is then discharged from the equipment through drainage chamber 106. This invention uses inclined plate 300 to guide the flow and partition 101 to block the flow, enabling floating oil to float upwards and sludge to automatically settle into hollow tank 4101. Combined with filter screen 104, the water quality is deeply purified, resulting in low oil content in the effluent. The air flotation mechanism 500 uses microbubbles to clean the plate surface, and the scraping mechanism 600 is linked to discharge sludge, solving the problem of low-temperature adhesion. The entire process is automated, reducing manual intervention and energy consumption, and meeting the standards for oil drilling sewage reinjection.

[0040] The hydraulic cylinder 402 is activated and moves to one end. This movement causes the second sleeve 403 to move to one end, which in turn causes the second fixed plate 404 to move to one end. The second fixed plate 404 then moves the first wire rope 405 to one end. The first wire rope 405 is deflected by multiple rotating pins 406. This movement causes the first sliding block 408 to move to one end, compressing the first compression spring 409. This movement then causes the second sliding block 410 to move away from the inlet pipe 109. Moving one end will cause the hollow groove 4101 to move closer to the second inclined block 411, so that the hollow groove 4101 enters the interior of the second inclined block 411. At the same time, the hollow groove 4101 will move away from the housing 100. At this time, the mud, sand and impurities inside the hollow groove 4101 will be discharged from the equipment under the action of gravity. With the structure set, when the hydraulic cylinder 402 moves to one end, it will cause the second sliding block 410 to move to one end, which will cause the hollow groove 4101 to move closer to the second inclined block 411, so that the hollow groove 4101 enters the interior of the second inclined block 411. At the same time, the hollow groove 4101 will move away from the housing 100. At this time, the mud, sand and impurities inside the hollow groove 4101 will be discharged from the equipment under the action of gravity.

[0041] As the second fixed plate 404 moves to one end, it drives the second steel wire rope 501 to move to one end. The movement of the second steel wire rope 501 to one end drives the piston 502 to move upward. The piston 502 is located inside the first sleeve 102. In the initial state, the first sleeve 102 at the upper end of the piston 502 has an opening to allow outside air to enter the first sleeve 102 and be compressed by the piston 502. A connecting pipe 103 is provided at the upper end of the first sleeve 102 to discharge the air inside the first sleeve 102. The upward movement of the piston 502 compresses the spring 503 and the air inside the first sleeve 102. The compressed air inside the first sleeve 102 then enters the connecting pipe 103. Air from inside the connecting pipe 103 enters the inclined plate 300 and exits through several small holes at the lower end of the inclined plate 300. The air exiting through these small holes can clean particulate impurities, sludge, and floating matter attached to the lower surface of the inclined plate 300. Through the designed structure, as the second sleeve 403 moves to one end, it drives the piston 502 to compress the air inside the first sleeve 102. This air then enters the inclined plate 300 and exits through several small holes at the lower end of the inclined plate 300. The air exiting through these small holes can clean particulate impurities, sludge, and floating matter attached to the lower surface of the inclined plate 300.

[0042] As the second sleeve 403 moves to one end, it also drives the sliding rod 601 to move to one end. Initially, the sliding rod 601 slides within the first groove 201. The depth of the first groove 201 gradually decreases along the forward direction of the hydraulic cylinder 402. A second groove 202 is also provided inside the first fixed plate 200, and its depth gradually increases along the forward direction of the hydraulic cylinder 402. The first groove 201 and the second groove 202 are connected to form a closed trapezoid. The first groove 201 is located at the upper end of the second groove 202, forming a downward-curving arc. The second groove 202 is located at the lower end of the first groove 201, forming a horizontal straight line. Initially, the sliding rod 601 is located within the first groove 201. As the sliding rod 601 slides from the first groove 201 to the second groove 202, the second sleeve 403 drives the scraper 602 during this process. Sliding upwards, when the hydraulic cylinder 402 resets, it will drive the sliding rod 601 to slide in the second sliding groove 202. The second sliding groove 202 is at the lower end of the first sliding groove 201. At this time, the second sleeve 403 will drive the scraper 602 to scrape off the oil, lubricating oil and floating objects floating on the upper end of the inclined plate 300. The inclined plate 300 is made of rubber and has a certain elasticity. With the cooperation of the first inclined block 301, the inclined plate 300 scrapes the oil, lubricating oil and floating objects into the collection bin 108. The present invention, by moving the second sleeve 403 to one end, will drive the scraper 602 to clean the oil, lubricating oil and floating objects floating on the upper end of the inclined plate 300. The air flotation mechanism 500 is linked to clean the plate surface, and the hollow groove 4101 automatically discharges sludge, solving the problem of oil adhering to low temperature and high viscosity sewage. The whole process is automated, reducing manual intervention and improving the efficiency and reuse quality of oil drilling sewage treatment.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oil drilling wastewater treatment device, comprising a housing (100), characterized in that: the housing (100) is divided into a treatment chamber and a sludge collection chamber by a partition (101), a first fixing plate (200) is fixedly connected to the top of the treatment chamber, a flow guiding assembly is inclinedly arranged below the first fixing plate (200), the flow guiding assembly includes an inclined plate (300) inclinedly arranged, a number of micro-holes are opened at the lower end of the inclined plate (300) to peel off oil and particulate impurities adhering to the surface of the inclined plate (300), and a cleaning device is provided in the sludge collection chamber. The cleaning mechanism (400) includes a second sliding block (410) that reciprocates along the bottom of the housing (100) to remove mud and sand impurities deposited at the bottom of the housing (100). The interior of the inclined plate (300) is provided with an air flotation mechanism (500) for cleaning impurities attached to the lower end of the inclined plate (300). The upper end of the inclined plate (300) is provided with a scraping mechanism (600) for collecting oil and floating matter at the upper end of the inclined plate (300). The scraping mechanism (600) includes a scraper (602). By tilting the inclined plate (300) and combining it with the micropore design inside the inclined plate (300), the floating oil can be efficiently floated up and the mud and sand can be blocked. The air flotation mechanism (500) releases microbubbles to peel off the attached substances on the plate surface. It is linked with the second sliding block (410) to automatically discharge sludge. The second sleeve (403) moves to one end and drives the scraper (602) to clean the oil, lubricating oil and floating objects floating on the upper end of the inclined plate (300). The air flotation mechanism (500) is linked to clean the plate surface. It is combined with the hollow trough (4101) to automatically discharge sludge. It integrates the three functions of guiding, air flotation and scraping, adapts to low temperature and high viscosity sewage, and reduces manual intervention and energy consumption.

2. The oil drilling wastewater treatment equipment according to claim 1, characterized in that: A first sleeve (102) is fixedly connected to the inner surface of the housing (100), a connecting pipe (103) is fixedly connected to the surface of the first sleeve (102), a filter screen (104) is fixedly connected to the surface of the partition (101), a support plate (105) is fixedly connected to one end of the filter screen (104), a drainage chamber (106) is fixedly connected to the surface of the support plate (105), an arc plate (107) is fixedly connected to the inner bottom surface of the housing (100), a collection chamber (108) is fixedly connected to the inner surface of the housing (100), and a water inlet pipe (109) is fixedly connected to the inside of the housing (100).

3. The oil drilling wastewater treatment equipment according to claim 2, characterized in that: The first fixing plate (200) has a first groove (201) inside, and the first fixing plate (200) also has a second groove (202) inside.

4. The oil drilling wastewater treatment equipment according to claim 3, characterized in that: The lower end of the inclined plate (300) is provided with several small holes, and the upper end of the inclined plate (300) is fixedly connected to the first inclined block (301).

5. The oil drilling wastewater treatment equipment according to claim 4, characterized in that: The cleaning mechanism (400) includes a fixed block (401), the lower end of which is fixedly connected to the first sleeve (102), the upper end of which is rotatably connected to the non-output end of the hydraulic cylinder (402), the output end of which is fixedly connected to the second sleeve (403), the surface of which is fixedly connected to the second sleeve (403), the lower end of which is fixedly connected to the first wire rope (405), and the surface of which is attached to the rotating pin (406).

6. The oil drilling wastewater treatment equipment according to claim 5, characterized in that: The cleaning mechanism (400) further includes a third sleeve (407), the two ends of the rotating pin (406) are rotatably connected to the third sleeve (407), the third sleeve (407) is fixedly connected to the housing (100), one end of the first wire rope (405) is fixedly connected to a first sliding block (408), one end of the first sliding block (408) is fixedly connected to a first compression spring (409), one end of the first compression spring (409) is fixedly connected to the third sleeve (407), one end of the first sliding block (408) is fixedly connected to a second sliding block (410), the interior of the second sliding block (410) is provided with a hollow groove (4101), and one end of the second sliding block (410) is slidably connected to a second tilting block (411).

7. The oil drilling wastewater treatment equipment according to claim 6, characterized in that: The air flotation mechanism (500) includes a second steel wire rope (501), which is fixedly connected to the second fixed plate (404). A piston (502) is fixedly connected to the lower end of the second steel wire rope (501), and a second compression spring (503) is fixedly connected to the upper end of the piston (502). The upper end of the second compression spring (503) is fixedly connected to the first sleeve (102).

8. The oil drilling wastewater treatment equipment according to claim 7, characterized in that: The scraping mechanism (600) includes a sliding rod (601), which is elastically connected to the second sleeve (403) by a spring. A scraper (602) is fixedly connected to the lower end surface of the second sleeve (403).

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