Dehydration tank for dehydrating oil sediment

Abstract

The invention relates to the technical field of dehydration tanks, and discloses a dehydration tank for oil sediment dehydration, the dehydration tank comprises a tank body assembly, one side of the tank body assembly is fixedly connected with a spiral filtering assembly, the part, close to the front surface, of one side of the tank body assembly is fixedly connected with a transmission assembly, and the bottom of one side of the tank body assembly is fixedly connected with a guide cleaning assembly; the water source has outward centrifugal force in the moving process, suspended solids in the water source are separated from the water source through an arc-shaped filter screen, the water source is gradually separated from the suspended solids in the process that the water source moves towards the right side until the water source is separated, and then the water source is pushed gradually through a first pushing thread and a second pushing thread. The solid suspended matters filtered out can be discharged out of the dehydration tank through the drain outlet, so that the dehydration tank can automatically realize solid-liquid separation of a water source needing to be treated, and filtering equipment does not need to be cleaned regularly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dehydration tanks, more particularly to a dehydration tank for oil sludge dehydration. BACKGROUND

[0002] A dehydration tank is a solid-liquid separation device widely used in chemical, pharmaceutical, food and other industries, mainly used for rapid dehydration and drying of materials. Its core technology is based on the principle of centrifugal force, which separates the liquid in the material through the centrifugal force generated by high-speed rotation, thereby achieving efficient dehydration. Traditional dehydration tanks are usually composed of a tank body, a driving system, a control system and a drainage device, made of corrosion-resistant materials such as stainless steel to adapt to different working conditions.

[0003] Early dehydration technology relies on natural sedimentation or mechanical pressure filtration, which is low in efficiency and high in energy consumption. With the development of industry, centrifugal dehydration technology has gradually matured, and dehydration tanks have significantly improved dehydration efficiency and processing capacity by optimizing the drum structure, increasing the rotation speed and improving the filter screen design. Modern dehydration tanks also incorporate automation control technology, which can monitor rotation speed, temperature and humidity in real time to ensure the stability and safety of the dehydration process. In addition, for high-viscosity or heat-sensitive materials, some equipment also introduces vacuum or heating functions, further expanding the application range.

[0004] The existing technology has the following problems: the existing dehydration tank is filtered by a single filter device to achieve the purpose of treating wastewater. When the filter device reaches the filtering threshold, part of the suspended solids will flow out with the water source, causing the dehydration tank to be unable to effectively treat the water source. In addition, the existing treatment device cannot be automatically cleaned, so the existing equipment needs to spend a lot of time cleaning the filter device after working for a period of time, which is not convenient to ensure the use efficiency of the dehydration tank. SUMMARY

[0005] In order to overcome the above-mentioned defects of the prior art, the present application provides a dehydration tank for oil sludge dehydration to solve the problems existing in the above background technology.

[0006] In order to achieve the above object, the present application provides the following technical scheme: a dehydration tank for oil sludge dehydration, comprising a tank body assembly, one side of the tank body assembly is fixedly connected with a spiral filter assembly, the side of the tank body assembly close to the front is fixedly connected with a transmission assembly, the bottom of the side of the tank body assembly is fixedly connected with a guide cleaning assembly, the outer side of the spiral filter assembly is installed with a centrifugal filter assembly, the bottom of the tank body assembly is fixedly connected with a drain pipe, the tank body assembly comprises a dehydration tank body, both sides of the bottom of the dehydration tank body are fixedly connected with supporting positioning blocks, one side of the dehydration tank body is fixedly connected with a blowdown positioning assembly, the transmission assembly comprises a second servo motor, the output shaft of the second servo motor is fixedly connected with a transmission shaft, one side of the transmission shaft away from the second servo motor is fixedly connected with a transmission gear.

[0007] Further, the blowdown positioning assembly comprises a positioning circular plate, the bottom of one side of the positioning circular plate away from the dehydration tank body is fixedly connected with a blowdown pipe, one side of the blowdown pipe away from the positioning circular plate is fixedly connected with a blowdown valve, the side of the positioning circular plate close to the dehydration tank body is provided with a bearing positioning groove, one side of the positioning circular plate close to the positioning circular plate is fixedly connected with a sealing baffle ring, one side of the sealing baffle ring is provided with a sealing limiting groove.

[0008] Further, the spiral filter assembly comprises a conveying positioning cylinder, one side of the conveying positioning cylinder is fixedly connected with a first servo motor, the output shaft of the first servo motor is fixedly connected with a rotating shaft, one side of the top of the conveying positioning cylinder is fixedly connected with an L-shaped pipe, one side of the L-shaped pipe is fixedly connected with a first sealing flange, one side of the outer side of the rotating shaft is fixedly connected with a first pushing thread, the other side of the outer side of the conveying positioning cylinder is fixedly connected with a second pushing thread, one side of the bottom of the conveying positioning cylinder is fixedly connected with an arc-shaped filter screen, the other side of the bottom of the conveying positioning cylinder is provided with a blowdown opening.

[0009] Further, the guide cleaning assembly comprises a sealing flow guide cylinder, one side of the bottom of the outer wall of the sealing flow guide cylinder is fixedly connected with an arc-shaped pushing plate, one side of the inner wall of the sealing flow guide cylinder is fixedly connected with a limiting ring plate, one side of the arc-shaped pushing plate is fixedly connected with a hydraulic telescopic rod, one side of the hydraulic telescopic rod is fixedly connected with a hydraulic cylinder, the top of the sealing flow guide cylinder is fixedly connected with a shunt pipe, the top of the shunt pipe is fixedly connected with a water injection pipe, the bottom of the shunt pipe is fixedly connected with a high-pressure spray opening, the other side of the water injection pipe is fixedly connected with a second sealing flange.

[0010] Further, the centrifugal filter assembly comprises a filter cartridge, one side of the filter cartridge is fixedly connected with a positioning ring, one side of the outer side of the positioning ring is fixedly connected with a first annular limiting plate, one side of the positioning ring is fixedly connected with a sealing ring plate, the outer side of the positioning ring is fixedly connected with a transmission gear ring between the sealing ring plate and the first annular limiting plate, the other side of the outer side of the positioning ring is fixedly connected with a second annular limiting plate, the other side of the outer side of the filter cartridge is provided with a first bearing, and the inner side of the sealing ring plate is provided with a second bearing.

[0011] Further, the centers of the filter cartridge, the positioning ring and the sealing ring plate, the center of the sealing flow guide cylinder, the center of the limiting ring plate and the center of the conveying positioning cylinder are on the same straight line, the gap between the diameter of the inner side of the limiting ring plate and the diameter of the outer side of the positioning ring is matched, the gap between the diameter of the inner side of the second bearing and the diameter of the outer side of the conveying positioning cylinder is matched, the transition fit between the diameter of the outer side of the first bearing and the diameter of the outer side of the bearing positioning groove is matched, the transition fit between the diameter of the inner side of the first bearing and the diameter of the outer side of the filter cartridge is matched, and the gap between the diameter of the inner side of the first bearing and the diameter of the inner side of the bearing positioning groove is matched.

[0012] Further, a circular groove is formed in the center of the side of the positioning circular plate, the gap between the diameter of the circular groove of the positioning circular plate and the diameter of the outer side of the conveying positioning cylinder is matched, the gap between the inner and outer diameters of the sealing flow guide cylinder and the inner and outer diameters of the sealing limiting groove is matched, and an arc-shaped groove is formed in the bottom of the inner side of the blowdown pipe, and the diameter of the arc-shaped groove in the bottom of the inner side of the blowdown pipe is the same as the diameter of the inner side of the filter cartridge.

[0013] Further, the outer side of the first pushing thread is attached to the inner wall of the conveying positioning cylinder, the outer side of the second pushing thread is attached to the inner wall of the conveying positioning cylinder, the pitch of the first pushing thread decreases from left to right, the included angle of the two sides of the arc-shaped filter screen is one hundred and eighty degrees, and the included angle of the blowdown port is one hundred and eighty degrees.

[0014] Further, the teeth on the outer side of the transmission gear ring and the teeth on the outer side of the transmission gear are engaged with each other, the thickness of the transmission gear is the same as the thickness of the transmission gear ring, and the gap between the spacing between the sealing ring plate and the first annular limiting plate and the thickness of the transmission gear ring is matched.

[0015] Technical effects and advantages of the application: The water source needing to be filtered is guided to the inside of the conveying positioning cylinder through the L-shaped pipe and the first sealing flange, the first servo motor is driven to work to drive the rotating shaft to rotate, then the first pushing thread and the second pushing thread are driven to rotate, then the sewage is moved to the right side under the conveying of the first pushing thread, and the water source has centrifugal force outward during the movement, the solid suspended matter in the water source is separated from the water through the arc-shaped filter screen, and the water is gradually separated from the solid suspended matter during the movement to the right side, until the solid-liquid separation is completed, the solid suspended matter filtered out can be discharged from the sewage discharge port to the dehydration tank, so that the dehydration tank realizes the solid-liquid separation of the sewage, and the filtering equipment does not need to be treated regularly; The water source filtered through the spiral filter assembly falls to the inside of the filter cylinder, the second servo motor is driven to work to drive the transmission shaft to rotate, then the transmission gear is driven to rotate, then the transmission gear teeth on the outside of the transmission gear and the transmission gear teeth on the outside of the transmission gear ring are meshed to drive the transmission gear ring to rotate, then the positioning ring and the sealing ring plate are driven to rotate, then the filter cylinder is driven to rotate relative to the spiral filter assembly, the water source is separated from the suspended matter still contained in the water source through centrifugal force, and the water source separated by the centrifugal force flows to the side away from the limiting ring plate, falls to the inside of the dehydration tank body, and can be discharged from the drain pipe, so that the water source needing to be treated is treated through the two groups of filtering assemblies with different filtering modes after the water source passes through the dehydration tank, and the filtering efficiency is ensured. When the filter cylinder needs to be cleaned, the hydraulic cylinder is driven to work to make the hydraulic telescopic rod lengthen, then the arc-shaped pushing plate, the limiting ring plate, the sealing flow guide cylinder, the water injection pipe, the shunt pipe, the high-pressure spraying port and the second sealing flange are pushed to move to the right side, the sealing flow guide cylinder enters the sealing limiting groove, high-pressure water flow is introduced into the water injection pipe, then the filter cylinder is back-flushed through the shunt pipe and the high-pressure spraying port, the suspended matter washed down is discharged through the sewage discharge pipe, and after cleaning, the cleaning assembly returns to the original position, and the filtering work can be continued, so that the equipment can realize automatic cleaning, and the labor intensity of workers is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the present application; Figure 2 It is a first cross-sectional structure schematic view of the present application; Figure 3 It is a second cross-sectional structure schematic view of the present application; Figure 4 It is a tank body assembly cross-sectional structure schematic view of the present application; Figure 5 It is a sewage positioning assembly structure schematic view of the present application; Figure 6 Structure diagram of the spiral filter assembly of the present application; Figure 7 Structure diagram of the guide cleaning assembly of the present application; Figure 8 Structure diagram of the centrifugal filter assembly of the present application.

[0017] The reference signs are: 1, tank assembly; 101, dewatering tank body; 102, support positioning block; 103, blowdown positioning assembly; 1031, positioning round plate; 1032, blowdown pipe; 1033, blowdown valve; 1034, bearing positioning groove; 1035, sealing stop ring; 1036, sealing limiting groove; 2, spiral filter assembly; 201, conveying positioning cylinder; 202, first servo motor; 203, rotating shaft; 204, L-shaped pipe; 205, first sealing flange; 206, first pushing thread; 207, arc-shaped filter screen; 208, blowdown port; 209, second pushing thread; 3, transmission assembly; 301, second servo motor; 302, transmission shaft; 303, transmission gear; 4, guide cleaning assembly; 401, sealing flow guide cylinder; 402, limiting ring plate; 403, arc-shaped pushing plate; 404, hydraulic telescopic rod; 405, hydraulic cylinder; 406, water injection pipe; 407, shunt pipe; 408, high-pressure spraying port; 409, second sealing flange; 5, centrifugal filter assembly; 501, filter cylinder; 502, positioning ring; 503, sealing ring plate; 504, transmission gear ring; 505, first annular limiting plate; 506, first bearing; 507, second bearing; 508, second annular limiting plate; 6, drain pipe. DETAILED DESCRIPTION

[0018] The technical solutions in the present application will be described clearly and completely below in combination with the drawings in the present application, and additionally, the forms of each structure described in the following embodiments are only examples, and the dewatering tank for oil sludge dewatering involved in the present application is not limited to each structure described in the following embodiments, and all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0019] REFERENCE Figures 1 to 8The application provides a dehydration tank for oil sludge dehydration, which comprises a tank body assembly 1, a spiral filter assembly 2 is fixedly connected to one side of the tank body assembly 1, a transmission assembly 3 is fixedly connected to one side of the tank body assembly 1 close to the front, a guiding and cleaning assembly 4 is fixedly connected to the bottom of one side of the tank body assembly 1, a centrifugal filter assembly 5 is installed on the outer side of the spiral filter assembly 2, a drain pipe 6 is fixedly connected to the bottom of the tank body assembly 1, the tank body assembly 1 comprises a dehydration tank body 101, support positioning blocks 102 are fixedly connected to the two sides of the bottom of the dehydration tank body 101, a blowdown positioning assembly 103 is fixedly connected to one side of the dehydration tank body 101, the transmission assembly 3 comprises a second servo motor 301, a transmission shaft 302 is fixedly connected to the output shaft of the second servo motor 301, and a transmission gear 303 is fixedly connected to the side, away from the second servo motor 301, of the transmission shaft 302.

[0020] In a preferred embodiment, the blowdown positioning assembly 103 comprises a positioning circular plate 1031, a blowdown pipe 1032 is fixedly connected to the bottom of the side, away from the dehydration tank body 101, of the positioning circular plate 1031, a blowdown valve 1033 is fixedly connected to the side, away from the positioning circular plate 1031, of the blowdown pipe 1032, a bearing positioning groove 1034 is formed in the side, close to the dehydration tank body 101, of the positioning circular plate 1031, a sealing baffle ring 1035 is fixedly connected to the side, close to the positioning circular plate 1031, of the positioning circular plate 1031, and a sealing limiting groove 1036 is formed in the side of the sealing baffle ring 1035.

[0021] In a preferred implementation, the spiral filter assembly 2 comprises a conveying positioning cylinder 201, one side of the conveying positioning cylinder 201 is fixedly connected with a first servo motor 202, the output shaft of the first servo motor 202 is fixedly connected with a rotating shaft 203, one side of the top of the conveying positioning cylinder 201 is fixedly connected with an L-shaped pipe 204, one side of the L-shaped pipe 204 is fixedly connected with a first sealing flange 205, one side of the outer side of the rotating shaft 203 is fixedly connected with a first push thread 206, the other side of the outer side of the conveying positioning cylinder 201 is fixedly connected with a second push thread 209, one side of the bottom of the conveying positioning cylinder 201 is fixedly connected with an arc-shaped filter screen 207, and the other side of the bottom of the conveying positioning cylinder 201 is provided with a blowdown 208; the water source to be filtered is guided to the inside of the conveying positioning cylinder 201 through the L-shaped pipe 204 and the first sealing flange 205, then the first servo motor 202 is worked to drive the rotating shaft 203 to rotate, thereby driving the first push thread 206 and the second push thread 209 to rotate, thereby making the water source move to the right side under the conveying of the first push thread 206, and making the water source have a centrifugal force to the outside during the movement, the suspended matter in the water source is separated from the water source through the arc-shaped filter screen 207, and the water source is gradually separated from the suspended matter during the movement to the right side, until the water source is separated, then the solid suspended matter filtered out is pushed out of the dehydration tank through the blowdown 208 by the first push thread 206 and the second push thread 209, so that the dehydration tank can automatically realize the solid-liquid separation of the water source to be treated, and does not need to be regularly cleaned.

[0022] In a preferred implementation, the guide cleaning assembly 4 comprises a sealing flow guide 401, one side of the bottom of the outer wall of the sealing flow guide 401 is fixedly connected with an arc-shaped push plate 403, one side of the inner wall of the sealing flow guide 401 is fixedly connected with a limiting ring plate 402, one side of the arc-shaped push plate 403 is fixedly connected with a hydraulic telescopic rod 404, one side of the hydraulic telescopic rod 404 is fixedly connected with a hydraulic cylinder 405, the top of the sealing flow guide 401 is fixedly connected with a shunt pipe 407, the top of the shunt pipe 407 is fixedly connected with a water injection pipe 406, the bottom of the shunt pipe 407 is fixedly connected with a high-pressure spray port 408, the other side of the water injection pipe 406 is fixedly connected with a second sealing flange 409; when the filter cartridge 501 needs to be treated, the hydraulic cylinder 405 works to make the hydraulic telescopic rod 404 elongate, in turn pushing the arc-shaped push plate 403, the limiting ring plate 402, the sealing flow guide 401, the water injection pipe 406, the shunt pipe 407, the high-pressure spray port 408 and the second sealing flange 409 to move to the right side, so that the sealing flow guide 401 enters the sealing limiting groove 1036, then high-pressure water flow is introduced into the water injection pipe 406, then the filter cartridge 501 is back-flushed through the shunt pipe 407 and the high-pressure spray port 408, the suspended solids washed down are discharged through the blowdown pipe 1032, after cleaning, the guide cleaning assembly 4 returns to the original position to continue the filtering work, so that the equipment can realize automatic cleaning and reduce the labor intensity of workers.

[0023] In a preferred implementation, the centrifugal filter assembly 5 includes a filter cartridge 501, one side of the filter cartridge 501 is fixedly connected with a positioning ring 502, one side of the outer side of the positioning ring 502 is fixedly connected with a first annular limiting plate 505, one side of the positioning ring 502 is fixedly connected with a sealing ring plate 503, the outer side of the positioning ring 502 is fixedly connected with a transmission gear ring 504 between the sealing ring plate 503 and the first annular limiting plate 505, the other side of the outer side of the positioning ring 502 is fixedly connected with a second annular limiting plate 508, the other side of the outer side of the filter cartridge 501 is installed with a first bearing 506, and the inner side of the sealing ring plate 503 is installed with a second bearing 507; The water filtered by the spiral filter assembly 2 falls to the inner side of the filter cartridge 501, and then drives the transmission shaft 302 to rotate through the operation of the second servo motor 301, and then drives the transmission gear 303 to rotate, so that the transmission gear 303 on the outer side and the transmission gear ring 504 on the outer side are meshed to drive the transmission gear ring 504 to rotate, and then drive the positioning ring 502, the sealing ring plate 503 and the filter cartridge 501 to rotate relative to the spiral filter assembly 2, so that the water source and the suspended solids still contained in the water source are separated by centrifugal force. The water separated by centrifugal force enters the inner side of the sealing flow guide cylinder 401, and then flows away from the limiting ring plate 402, falls to the inner side of the dehydration tank body 101, and is discharged through the drain pipe 6. The water source to be treated is treated by the filter assembly with two different filtering modes after passing through the dehydration tank, so that the filtering efficiency is ensured.

[0024] In a preferred implementation, the centers of the filter cartridge 501, the positioning ring 502 and the sealing ring plate 503, the centers of the sealing flow guide cylinder 401, the limiting ring plate 402 and the conveying positioning cylinder 201 are on the same straight line, the gap between the diameter of the inner side of the limiting ring plate 402 and the diameter of the outer side of the positioning ring 502 is matched, the gap between the diameter of the inner side of the second bearing 507 and the diameter of the outer side of the conveying positioning cylinder 201 is matched, the transition fit between the diameter of the outer side of the first bearing 506 and the diameter of the outer side of the bearing positioning groove 1034 is matched, the transition fit between the diameter of the inner side of the first bearing 506 and the diameter of the outer side of the filter cartridge 501 is matched, and the gap between the diameter of the inner side of the first bearing 506 and the diameter of the inner side of the bearing positioning groove 1034 is matched.

[0025] In a preferred implementation, a circular groove is formed in the center of the side of the positioning circular plate 1031, the gap between the diameter of the circular groove of the positioning circular plate 1031 and the diameter of the outer side of the conveying positioning cylinder 201 is matched, the gap between the inner and outer diameters of the sealing flow guide cylinder 401 and the inner and outer diameters of the sealing limiting groove 1036 is matched, an arc-shaped groove is formed in the bottom of the inner side of the blowdown pipe 1032, and the diameter of the arc-shaped groove in the bottom of the inner side of the blowdown pipe 1032 is the same as the diameter of the inner side of the filter cartridge 501.

[0026] In a preferred embodiment, the outer side of the first pushing thread 206 is attached to the inner wall of the conveying positioning cylinder 201, the outer side of the second pushing thread 209 is attached to the inner wall of the conveying positioning cylinder 201, the pitch of the first pushing thread 206 is gradually reduced from left to right, the included angle of the arc-shaped filter screen 207 on both sides is 180 degrees, and the included angle of the pollution outlet 208 is 180 degrees.

[0027] In a preferred embodiment, the teeth on the outer side of the transmission gear ring 504 are engaged with the teeth on the outer side of the transmission gear 303, the thickness of the transmission gear 303 is the same as the thickness of the transmission gear ring 504, and the gap between the sealing ring plate 503 and the first annular limiting plate 505 is the same as the thickness of the transmission gear ring 504.

[0028] The working principle of the present application is as follows: the water source to be filtered is guided into the inside of the conveying positioning cylinder 201 through the L-shaped pipe 204 and the first sealing flange 205, the first servo motor 202 is driven to rotate the rotating shaft 203, which in turn drives the first pushing thread 206 and the second pushing thread 209 to rotate, and then the water source is moved to the right side under the pushing of the first pushing thread 206, and the water source has a centrifugal force outward during the movement, the suspended solids in the water source are separated from the water source through the arc-shaped filter screen 207, and the water source is gradually separated from the suspended solids during the movement to the right side, until the water source is completely separated, then the solid suspended solids filtered out by the first pushing thread 206 and the second pushing thread 209 are pushed out of the dehydration tank through the pollution outlet 208, so that the dehydration tank can automatically realize the solid-liquid separation of the water source to be treated, and the filter equipment does not need to be treated regularly.

[0029] The water source filtered by the spiral filter assembly 2 falls into the inside of the filter cylinder 501, then the second servo motor 301 is driven to rotate the transmission shaft 302, which in turn drives the transmission gear 303 to rotate, and then the transmission gear 303 and the transmission gear ring 504 are engaged with each other to drive the transmission gear ring 504 to rotate, and then the positioning ring 502, the sealing ring plate 503, and the filter cylinder 501 are rotated, and then the water source is separated from the suspended solids still contained in the water source by centrifugal force, and the water source separated by centrifugal force falls into the inside of the dehydration tank body 101, and then flows away from the limiting ring plate 402, and then falls into the inside of the dehydration tank, and then is discharged from the dehydration tank through the drain pipe 6, so that the water source to be treated is treated by two groups of filter assemblies with different filtering methods after passing through the dehydration tank, and the filtering efficiency is ensured.

[0030] When the filter cartridge 501 needs to be cleaned, the hydraulic cylinder 405 is operated to make the hydraulic telescopic rod 404 extend, thereby pushing the arc-shaped push plate 403, the limiting ring plate 402, the sealing flow guide cylinder 401, the water injection pipe 406, the shunt pipe 407, the high-pressure spray port 408 and the second sealing flange 409 to move to the right side, so that the sealing flow guide cylinder 401 enters the sealing limiting groove 1036, then high-pressure water flow is introduced into the water injection pipe 406, the filter cartridge 501 is back-flushed through the shunt pipe 407 and the high-pressure spray port 408, the suspended solids washed down are discharged through the blowdown pipe 1032, and after cleaning, the guiding cleaning assembly 4 returns to the original position, so that the filtering work can continue, the equipment can realize automatic cleaning, the labor intensity of workers is reduced, and the water injection pipe 406 on the side close to the second sealing flange 409 or the water pipe connected with the second sealing flange 409 needs to be a telescopic pipe, so that the movement of the water injection pipe 406 can be met, and the specific structure of the present application is not limited.

[0031] Finally, a few points should be noted: first, in the description of the present application, it should be pointed out that unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to indicate the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change; Secondly: the present application discloses the structure involved in the embodiment of the present application, and other structures can refer to the usual design, and under the condition of no conflict, the same embodiment and different embodiments of the present application can be combined with each other; Finally: the above only describes the preferred embodiments of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A dehydration tank for dehydrating oil sludge, comprising a tank assembly (1), characterized in that: A spiral filter assembly (2) is fixedly connected to one side of the tank assembly (1), a transmission assembly (3) is fixedly connected to one side of the tank assembly (1) near the front, a guide cleaning assembly (4) is fixedly connected to the bottom of one side of the tank assembly (1), a centrifugal filter assembly (5) is installed on the outside of the spiral filter assembly (2), a drain pipe (6) is fixedly connected to the bottom of the tank assembly (1), the tank assembly (1) comprises a dewatering tank body (101), support positioning blocks (102) are fixedly connected to both sides of the bottom of the dewatering tank body (101), a sewage positioning assembly (103) is fixedly connected to one side of the dewatering tank body (101), and the transmission assembly (3) comprises a second servo motor (301), an output shaft of the second servo motor (301) is fixedly connected to a transmission shaft (302), and a side of the transmission shaft (302) away from the second servo motor (301) is fixedly connected to a transmission gear (303).

2. A dehydration tank for oil sludge dehydration according to claim 1, characterized in that: The sewage discharge positioning assembly (103) comprises a positioning circular plate (1031), a sewage discharge pipe (1032) being fixedly connected to the bottom of the positioning circular plate (1031) on a side away from the dehydration tank body (101), a sewage discharge valve (1033) being fixedly connected to the side of the sewage discharge pipe (1032) away from the positioning circular plate (1031), a bearing positioning groove (1034) being provided on the side of the positioning circular plate (1031) close to the dehydration tank body (101), a sealing retaining ring (1035) being fixedly connected to the side of the positioning circular plate (1031) close to the positioning circular plate (1031), and a sealing limit groove (1036) being provided on one side of the sealing retaining ring (1035).

3. The dehydration tank for oil sludge dehydration according to claim 2, characterized in that: The spiral filter assembly (2) comprises a conveying and positioning cylinder (201), one side of the conveying and positioning cylinder (201) is fixedly connected to a first servo motor (202), an output shaft of the first servo motor (202) is fixedly connected to a rotating shaft (203), one side of the top of the conveying and positioning cylinder (201) is fixedly connected to an L-shaped tube (204), one side of the L-shaped tube (204) is fixedly connected to a first sealing flange (205), one side of the outer side of the rotating shaft (203) is fixedly connected to a first pushing thread (206), the other side of the outer side of the conveying and positioning cylinder (201) is fixedly connected to a second pushing thread (209), one side of the bottom of the conveying and positioning cylinder (201) is fixedly connected to an arc-shaped filter screen (207), and the other side of the bottom of the conveying and positioning cylinder (201) is provided with a sewage outlet (208).

4. The dehydration tank for oil sludge dehydration according to claim 2, characterized in that: The guide cleaning assembly (4) comprises a sealed guide tube (401), wherein one side of the bottom of the outer wall of the sealed guide tube (401) is fixedly connected to an arc-shaped push plate (403), one side of the inner wall of the sealed guide tube (401) is fixedly connected to a limit ring plate (402), one side of the arc-shaped push plate (403) is fixedly connected to a hydraulic telescopic rod (404), one side of the hydraulic telescopic rod (404) is fixedly connected to a hydraulic cylinder (405), the top of the sealed guide tube (401) is fixedly connected to a diversion pipe (407), the top of the diversion pipe (407) is fixedly connected to a water injection pipe (406), the bottom of the diversion pipe (407) is fixedly connected to a high-pressure spray port (408), and the other side of the water injection pipe (406) is fixedly connected to a second sealing flange (409).

5. The dehydration tank for oil sludge dehydration according to claim 4, characterized in that: The centrifugal filter assembly (5) comprises a filter cartridge (501), a positioning ring (502) being fixedly connected to one side of the filter cartridge (501), a first annular limiting plate (505) being fixedly connected to one side of the outer side of the positioning ring (502), a sealing ring plate (503) being fixedly connected to one side of the positioning ring (502), a transmission gear ring (504) being fixedly connected to the outer side of the positioning ring (502) between the sealing ring plate (503) and the first annular limiting plate (505), a second annular limiting plate (508) being fixedly connected to the other side of the outer side of the positioning ring (502), a first bearing (506) being mounted on the other side of the outer side of the filter cartridge (501), and a second bearing (507) being mounted on the inner side of the sealing ring plate (503).

6. The dehydration tank for oil sludge dehydration according to claim 5, characterized in that: The centers of the filter cylinder (501), the positioning ring (502), and the sealing ring plate (503), the centers of the sealing guide cylinder (401), the limiting ring plate (402), and the center of the conveying positioning cylinder (201) are on the same straight line; the inner diameter of the limiting ring plate (402) and the outer diameter of the positioning ring (502) are clearance-matched; the inner diameter of the second bearing (507) and the outer diameter of the conveying positioning cylinder (201) are clearance-matched; the outer diameter of the first bearing (506) and the outer diameter of the bearing positioning groove (1034) are transitionally matched; the inner diameter of the first bearing (506) and the outer diameter of the filter cylinder (501) are transitionally matched; and the inner diameter of the first bearing (506) and the inner diameter of the bearing positioning groove (1034) are clearance-matched.

7. The dehydration tank for oil sludge dehydration according to claim 5, characterized in that: A circular groove is provided at the center of the side surface of the positioning circular plate (1031), and the diameter of the circular groove of the positioning circular plate (1031) is clearance-matched with the diameter of the outer side of the conveying positioning cylinder (201). The inner and outer diameters of the sealing guide cylinder (401) are clearance-matched with the inner and outer diameters of the sealing limit groove (1036). An arc-shaped groove is provided at the bottom of the inner side of the sewage pipe (1032), and the diameter of the arc-shaped groove at the bottom of the inner side of the sewage pipe (1032) is the same as the diameter of the inner side of the filter cylinder (501).

8. The dehydration tank for oil sludge dehydration according to claim 3, characterized in that: The outer side of the first pushing thread (206) is in contact with the inner wall of the conveying positioning cylinder (201), and the outer side of the second pushing thread (209) is in contact with the inner wall of the conveying positioning cylinder (201). The pitch of the first pushing thread (206) decreases from left to right. The angle between the two sides of the arc-shaped filter screen (207) is 180 degrees, and the angle between the sewage outlet (208) is 180 degrees.

9. The dehydration tank for oil sludge dehydration according to claim 5, characterized in that: The outer teeth of the transmission gear ring (504) mesh with the outer teeth of the transmission gear (303), the thickness of the transmission gear (303) is the same as that of the transmission gear ring (504), and the spacing between the sealing ring plate (503) and the first annular limiting plate (505) is clearance-matched with the thickness of the transmission gear ring (504).

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