An oil drilling waste cleaning equipment

Abstract

The present invention relates to the technical field of waste mud treatment, in particular to a cleaning device for oil drilling waste, including a box body, a linkage device, and a circulating water supply device. A first filter tank is provided inside the box body. The first filter tank is connected to the linkage device by insertion. The linkage device is fixedly connected to the inner wall of the box body. An expansion motor is provided outside the box body. The expansion motor penetrates the box body and is movably connected to the linkage device. A water supply pipe is provided at the top of the circulating water supply device. One end of the water supply pipe away from the circulating water supply device is fixedly connected to the box body. It can filter large-volume impurities and drill cuttings doped in the waste mud. The fine-particle mud is then secondarily filtered through a sieve mesh. After multiple sieving, mud with delicate texture is obtained, which reflects that this device effectively sieves and purifies heavy metal harmful substances doped in the waste mud.

Description

Technical field

[0001] The present invention relates to the technical field of waste mud treatment, and particularly to a cleaning device for oil drilling waste. Background technique

[0002] Drilling fluid is the general term for various circulating fluids that meet the needs of drilling work with its various functions during the drilling process. Drilling fluid is the blood of drilling, also known as borehole flushing fluid. Drilling fluid can be divided into clear water, mud, clay-free flushing fluid, emulsion, foam, compressed air, etc. according to its composition. Clear water is the earliest used drilling fluid, which does not need to be treated and is easy to use. It is suitable for intact rock formations and areas with sufficient water sources;

[0003] Mud is a widely used drilling fluid, mainly applicable to unstable hole walls such as loose, fissure-developed, easy to collapse and slough, and swelling and exfoliating when encountering water. After retrieval, a vertical oil and gas field drilling waste mud treatment unit disclosed in the application number CN201620500572.0: includes a hot blast stove and an oil and gas field drilling waste mud conveying mechanism. The bottom of the hot blast stove is provided with a slag outlet. The top of the hot blast stove is sequentially connected with a bag filter, a lower distilled water collection pool, a primary cooling water pool, an upper distilled water collection pool and a secondary cooling water pool from bottom to top. Among them, the waste mud treatment unit has the following problems. For waste mud, only drying and distillation can be carried out to realize the purification of liquid, but the solid phase of waste mud cannot be treated. Because the waste mud is doped with metal pollutants and large-volume drill cuttings, the large-volume impurities inside the mud cannot be refined, which will lead to many impurities in the distillation and purification of waste mud, and harmful substances doped inside the mud will cause purification failure and poor quality during the distillation process. Summary of the invention

[0004] In view of the above problems existing in the prior art, a cleaning device for oil drilling waste is provided now.

[0005] The specific technical solution is as follows:

[0006] Design a cleaning device for oil drilling waste, including a box body, a linkage device, and a circulating water supply device. A first filter tank is arranged inside the box body. The first filter tank is connected to the linkage device by insertion. The linkage device is fixedly connected to the inner wall of the box body. An expansion motor is arranged outside the box body. The expansion motor penetrates the box body and is movably connected to the linkage device. A water supply pipe is arranged at the top of the circulating water supply device. One end of the water supply pipe far away from the circulating water supply device is fixedly connected to the box body.

[0007] Preferably, a filter column is provided inside the first filter tank, a second filter tank is provided below the first filter tank, a sieve is provided inside the second filter tank, a third filter tank is provided below the second filter tank, and a water filter net is provided inside the third filter tank.

[0008] Preferably, a telescopic rod is provided inside the linkage device. The telescopic rod is movably connected to the telescopic motor. A driving rod is provided at one end of the telescopic rod away from the telescopic motor. The driving rod is fixedly connected to the first filter tank. The bottom of the driving rod is fixedly connected to the third filter tank. The outside of the first filter tank is connected to the second filter tank through a lever, and the levers are symmetrically distributed.

[0009] Preferably, a limiting wheel is provided inside the linkage device, and the limiting wheel is connected to the first filter tank by an embedding method.

[0010] Preferably, a fixed shaft is fixedly connected to the outside of the first filter tank. A bearing is provided inside the fixed shaft. An elastic member is fixedly connected to the back of the bearing. A rotating shaft is movably connected inside the bearing. One side of the rotating shaft away from the bearing is connected to a sealing plate through a connecting rod, and the sealing plate is located outside the box body.

[0011] Preferably, for the circulating water supply device, a pressurization tank is provided inside the circulating water supply device, and a check valve piece is fixedly connected to the outside of the pressurization tank.

[0012] Preferably, a return water pipe is provided outside the circulating water supply device. The return water pipe penetrates through the circulating water supply device and is connected to the pressurization tank, and a water pump is fixedly connected to the outside of the return water pipe.

[0013] Preferably, the bottom of the box body is connected to a filter box by an embedding method, and one side of the filter box is fixedly connected to the return water pipe.

[0014] Preferably, driving wheels are movably connected to the top of the second filter tank, and the driving wheels are symmetrically distributed. A lower convex block is provided at one end of the first filter tank away from the linkage device, and an upper convex block is provided on one side of the lower convex block. The upper convex block is fixedly connected to the second filter tank.

[0015] Preferably, an exhaust port is provided at the top of the box body. There is a feed port between the exhaust port and the upper water pipe. The upper water pipe penetrates through the box body and is connected to a spray head. The feed port is connected to the box body by welding, and the bottom of the box body is fixedly connected to a base.

[0016] The above technical solution has the following advantages or beneficial effects:

[0017] 1. Inside the box body, there is a first filter tank. The first filter tank is connected to the linkage device by insertion. The linkage device is fixedly connected to the inner wall of the box body. Outside the box body, there is a telescopic motor. The telescopic motor penetrates the box body and is movably connected to the linkage device. At the top of the circulating water supply device, there is an upper water pipe. One end of the upper water pipe far from the circulating water supply device is fixedly connected to the box body. A linkage device is arranged inside the box body to drive the first filter tank and the third filter tank to vibrate horizontally respectively to screen and filter the mud. Moreover, during the working process, the middle second filter tank can be driven to move in the opposite direction and at the same frequency by a lever, which can not only improve the quality of mud filtration but also enhance the screening efficiency. The filter columns inside the first filter tank can filter large-volume impurities and drill cuttings doped in the waste mud. The mud with fine particles is further filtered through the screen. After multiple screenings, fine-quality mud is obtained, which reflects that this device effectively screens and purifies heavy metal harmful substances doped in the waste mud, realizing the "harmlessness", "reduction" and "resource recovery" of drilling waste in the true sense.

[0018] 2. Inside the linkage device, there is a telescopic rod. The telescopic rod is movably connected to the telescopic motor. At one end of the telescopic rod far from the telescopic motor, there is a driving rod. The driving rod is fixedly connected to the first filter tank. The bottom of the driving rod is fixedly connected to the third filter tank. The outside of the first filter tank is connected to the second filter tank by a lever. When the telescopic motor drives the first storage tank and the third storage tank to move horizontally, the second storage tank is driven to move in the opposite direction at the same frequency through the lever fixed at the center, so as to achieve the counteraction between the screen and the filter column and decompose the mud adhering to the outside of the large-volume impurities. Moreover, the upper and lower convex blocks between the first filter tank and the second filter tank can lift the counteraction distance between the first filter tank and the second filter tank during the movement, increasing the multi-angle screening of the waste mud.

[0019] 3. By setting a circulating water supply device, there is a pressurization tank inside the circulating water supply device. The outside of the pressurization tank is fixedly connected with a check valve. The set circulating water supply device can not only supply water to the inside of the box body, add water during the process of screening and filtering the mud to increase the smoothness of screening, but also the water seeping out of the box body can return to the inside of the circulating water supply device through the return pipe after being filtered by the filter box. Through the energy supply of a water pump, the functions of recycling filtered water and adding water and pressurizing to the inside of the sealed circulating water supply device can be achieved, so that the water flow inside the circulating water supply device enters the box body, achieving the function of automatic reflux. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Referring to the accompanying drawings, the embodiments of the present invention are described more fully. However, the accompanying drawings are only for illustration and explanation and do not constitute a limitation on the scope of the present invention.

[0021] Figure 1 It is a schematic structural diagram of a cleaning device for oil drilling waste proposed by the present invention;

[0022] Figure 2 This is a schematic structural diagram of a cleaning device for oil drilling waste proposed by the present invention;

[0023] Figure 3 This is a schematic structural diagram of a cleaning device for oil drilling waste proposed by the present invention;

[0024] Figure 4 This is a schematic structural diagram of a cleaning device for oil drilling waste proposed by the present invention;

[0025] Figure 5 This is a schematic structural diagram of a cleaning device for oil drilling waste proposed by the present invention;

[0026] Figure 6 This is a schematic structural diagram of a cleaning device for oil drilling waste proposed by the present invention;

[0027] Figure 7 This is a schematic structural diagram of a cleaning device for oil drilling waste proposed by the present invention;

[0028] Figure 8 This is a schematic structural diagram of a cleaning device for oil drilling waste proposed by the present invention.

[0029] The above-mentioned reference numerals represent: box body 1, base 2, feed inlet 3, linkage device 4, telescopic rod 41, driving rod 42, lever 43, limiting wheel 44, first filter tank 5, second filter tank 6, third filter tank 7, fixed shaft 8, bearing 81, elastic member 82, rotating shaft 83, connecting rod 84, circulating water supply device 9, return water pipe 91, pressurizing tank 92, water pump 93, check valve piece 94, water supply pipe 10, sealing plate 11, filter box 12, spray head 13, exhaust port 14, filter column 15, sieve mesh 16, water filter mesh 17, telescopic motor 18, driving wheel 19, lower convex block 20, upper convex block 21. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts fall within the scope of protection of the present invention.

[0031] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0032] Next, the present invention will be further described in conjunction with the accompanying drawings and specific embodiments, but it is not a limitation of the present invention.

[0033] Referring to Figure 1-8 Figure 1-8 , an oil drilling waste cleaning device includes a box body 1, a linkage device 4, and a circulating water supply device 9. A first filter tank 5 is provided inside the box body 1. The first filter tank 5 is connected to the linkage device 4 by insertion. The linkage device 4 is fixedly connected to the inner wall of the box body 1. An expansion motor 18 is provided outside the box body 1. The expansion motor 18 penetrates the box body 1 and is movably connected to the linkage device 4. An upper water pipe 10 is provided at the top of the circulating water supply device 9. One end of the upper water pipe 10 away from the circulating water supply device 9 is fixedly connected to the box body 1. A linkage device 4 is arranged inside the box body 1 to drive the first filter tank 5 and the third filter tank 7 to vibrate horizontally to screen and filter the mud. During the working process, the middle second filter tank 6 can be driven to move in the opposite direction at the same frequency by a lever 43. This not only improves the quality of mud filtration but also enhances the screening efficiency. The filter column 15 inside the first filter tank 5 can filter large-volume impurities and drill cuttings doped in the waste mud. The mud with fine particles is further filtered by a screen 16. After multiple screenings, fine-quality mud is obtained, indicating that this device effectively screens and purifies heavy metal harmful substances doped in the waste mud, achieving the "harmlessness", "reduction", and "resource recovery" of drilling waste in the true sense.

[0034] A filter column 15 is provided inside the first filter tank 5. A second filter tank 6 is provided below the first filter tank 5. A screen 16 is provided inside the second filter tank 6. A third filter tank 7 is provided below the second filter tank 6. A water filter screen 17 is provided inside the third filter tank 7. The aperture inside the filter column 15 is larger than that of the screen 16, and the aperture of the screen 16 is larger than that of the water filter screen 17, enabling the mud to be screened and refined layer by layer. When the expansion motor 18 drives the first storage tank and the third storage tank to move horizontally, the second storage tank is driven to move in the opposite direction at the same frequency through a lever 43 fixed at the center, so as to achieve the counteraction between the screen 16 and the filter column 15 and decompose the mud adhering to the outside of the large-volume impurities. Moreover, the upper and lower bumps 20 between the first filter tank 5 and the second filter tank 6 can lift the counteraction distance between the first filter tank 5 and the second filter tank 6 during the movement, increasing the multi-angle screening of the waste mud.

[0035] A telescopic rod 41 is provided inside the linkage device 4. The telescopic rod 41 is movably connected to the expansion motor 18. A driving rod 42 is provided at one end of the telescopic rod 41 away from the expansion motor 18. The driving rod 42 is fixedly connected to the first filter tank 5. The bottom of the driving rod 42 is fixedly connected to the third filter tank 7. The outside of the first filter tank 5 is connected to the second filter tank 6 by a lever 43. The levers 43 are symmetrically distributed.

[0036] A limiting wheel 44 is provided inside the linkage device 4. The limiting wheel 44 is connected to the first filter tank 5 in an embedded manner. The purpose of setting the limiting wheel 44 is to limit the laterally moving filter tank.

[0037] A fixed shaft 8 is fixedly connected to the outside of the first filter tank 5. A bearing 81 is provided inside the fixed shaft 8. An elastic member 82 is fixedly connected to the back of the bearing 81. A rotating shaft 83 is movably connected inside the bearing 81. One side of the rotating shaft 83 away from the bearing 81 is connected to a sealing plate 11 through a connecting rod 84. The sealing plate 11 is located outside the box body 1. The set fixed shaft 8 can keep the connection with the sealing plate 11 during the working movement of the filter tank, which is convenient for taking out the filtered mud later.

[0038] A circulating water supply device 9. A pressurizing tank 92 is provided inside the circulating water supply device 9. A check valve piece 94 is fixedly connected to the outside of the pressurizing tank 92. Symmetrical check valve pieces 94 are provided inside the pressurizing tank 92, which are made of rubber. Through the elasticity and airtightness of the check valve pieces 94, the liquid inside the circulating water supply device 9 can be prevented from flowing into the inside of the pressurizing tank 92.

[0039] A water return pipe 91 is provided outside the circulating water supply device 9. The water return pipe 91 penetrates through the circulating water supply device 9 and is connected to the pressurizing tank 92. A water pump 93 is fixedly connected to the outside of the water return pipe 91. The set circulating water supply device 9 can not only supply water to the inside of the box body 1, add water during the process of screening mud, and increase the smoothness of screening, but also the water seeping out from the inside of the box body 1 can return to the inside of the circulating water supply device 9 through the filter tank 12 and the return pipe. Through the energy supply of a water pump 93, the functions of recycling filtered water and adding water and pressurizing to the inside of the sealed circulating water supply device 9 can be achieved, so that the water flow inside the circulating water supply device 9 enters the inside of the box body 1, achieving the function of automatic backflow.

[0040] The bottom of the box body 1 is connected to the filter tank 12 in an embedded manner. One side of the filter tank 12 is fixedly connected to the water return pipe 91. A filter screen and an activated carbon layer are provided inside the filter tank 12 to filter and adsorb impurities in the recyclable liquid. And the filter tank 12 is a detachable device, which is convenient for regularly cleaning the inside of the filter tank 12.

[0041] A driving wheel 19 is movably connected to the top of the second filter tank 6. The driving wheels 19 are symmetrically distributed. A lower convex block 20 is provided at one end of the first filter tank 5 away from the linkage device 4. An upper convex block 21 is provided on one side of the lower convex block 20. The upper convex block 21 is fixedly connected to the second filter tank 6. Setting the driving wheel 19 can not only provide protection for the collision between the filter tanks, but also limit the two filter tanks.

[0042] An exhaust port 14 is provided at the top of the box body 1. There is a feed port 3 between the exhaust port 14 and the water supply pipe 10. The water supply pipe 10 penetrates the box body 1 and is connected to the spray head 13. The feed port 3 is connected to the box body 1 by welding. The bottom of the box body 1 is fixedly connected to the base 2. The exhaust port 14 at the top of the box body 1 is internally equipped with a filter element, which can filter and discharge the soot inside the box body 1 to avoid polluting the external air.

[0043] Working principle: Add the drilling mud into the box body 1 from the feed port 3. Along with the guiding of the flow guiding plate, the mud drops into the first filter tank 5. Then turn on the telescopic motor 18. The telescopic motor 18 drives the telescopic rod 41 to perform horizontal reciprocating motion. The telescopic rod 41 drives the first filter tank 5 and the third filter tank 7 to move horizontally at high frequency through the driving rod 42, vibrating and filtering the mud inside. Filter out the large-volume impurities mixed in the mud through the filter column 15. The filtered mud leaks into the second filter tank 6. When the first filter tank 5 moves horizontally, the second storage tank is driven to move in the opposite direction synchronously through the lever 43 fixed at the center, so that the filter column 15 squeezes and rubs the mud inside the screen 16, refining the particles inside the mud. The refined mud passes through the screen 16 and enters the inside of the third filter screen for storage. When the work of refining the mud is carried out inside the box body 1, turn on the water pump 93. The water pump 93 increases the pressure inside the circulating water supply device 9 through the high-speed rotation of the internal turbine to generate centrifugal force, so that the liquid inside the circulating water supply device 9 enters the spray head 13 from the water supply pipe 10 and sprays out from the spray head 13. After passing through the three-layer filter tank, it is filtered by the filter box 12 and then flows back into the circulating water supply device 9 through the suction of the water pump 93 from the return pipe.

[0044] The above are only the preferred embodiments of the present invention, and do not limit the implementation manners and protection scope of the present invention accordingly. For those skilled in the art, it should be able to realize that all the equivalent replacements and obvious changes made by using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. An oil drilling waste cleaning device, characterized in that: It includes a box body (1), a linkage device (4), and a circulating water supply device (9). Inside the box body (1), there is a first filter tank (5). The first filter tank (5) is connected to the linkage device (4) by insertion. The linkage device (4) is fixedly connected to the inner wall of the box body (1). Outside the box body (1), there is a telescopic motor (18). The telescopic motor (18) penetrates the box body (1) and is movably connected to the linkage device (4). At the top of the circulating water supply device (9), there is an upper water pipe (10). One end of the upper water pipe (10) far from the circulating water supply device (9) is fixedly connected to the box body (1). Inside the first filter tank (5), there is a filter column (15). Below the first filter tank (5), there is a second filter tank (6). Inside the second filter tank (6), there is a sieve (16). Below the second filter tank (6), there is a third filter tank (7). Inside the third filter tank (7), there is a water filter net (17). Inside the linkage device (4), there is a telescopic rod (41). The telescopic rod (41) is movably connected to the telescopic motor (18). At one end of the telescopic rod (41) far from the telescopic motor (18), there is a driving rod (42). The driving rod (42) is fixedly connected to the first filter tank (5). The bottom of the driving rod (42) is fixedly connected to the third filter tank (7). The outside of the first filter tank (5) is connected to the second filter tank (6) by a lever (43). The levers (43) are symmetrically distributed. Inside the linkage device (4), there is a limit wheel (44). The limit wheel (44) is connected to the first filter tank (5) by embedding. Outside the first filter tank (5), there is a fixed shaft (8) fixedly connected. Inside the fixed shaft (8), there is a bearing (81). At the back of the bearing (81), there is an elastic member (82) fixedly connected. Inside the bearing (81), there is a rotating shaft (83) movably connected. One side of the rotating shaft (83) far from the bearing (81) is connected to a sealing plate (11) by a connecting rod (84). The sealing plate (11) is located outside the box body (1).

2. The oil drilling waste cleaning equipment according to claim 1, characterized in that: Inside the circulating water supply device (9), there is a pressurizing tank (92). Outside the pressurizing tank (92), there is a check valve piece (94) fixedly connected.

3. The oil drilling waste cleaning equipment according to claim 2, characterized in that: Outside the circulating water supply device (9), there is a return water pipe (91). The return water pipe (91) penetrates the circulating water supply device (9) and is connected to the pressurizing tank (92). Outside the return water pipe (91), there is a water pump (93) fixedly connected.

4. The oil drilling waste cleaning equipment according to claim 3, characterized in that: The bottom of the box body (1) is connected to a filter box (12) by embedding. One side of the filter box (12) is fixedly connected to the return water pipe (91).

5. The oil drilling waste cleaning equipment according to claim 1, wherein: The top of the second filter tank (6) is movably connected to a driving wheel (19). The driving wheels (19) are symmetrically distributed. One end of the first filter tank (5) away from the linkage device (4) is provided with a lower convex block (20). One side of the lower convex block (20) is provided with an upper convex block (21). The upper convex block (21) is fixedly connected to the second filter tank (6).

6. The oil drilling waste cleaning equipment according to claim 5, characterized in that: An exhaust port (14) is formed in the top of the box body (1). A feed port (3) is arranged between the exhaust port (14) and the upper water pipe (10). The upper water pipe (10) passes through the box body (1) and is connected to a spray head (13). The feed port (3) is connected to the box body (1) by welding. The bottom of the box body (1) is fixedly connected to a base (2).

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