A foil rolling mill oil tank backwashing device

Abstract

The utility model belongs to the technical field of dirt removal, specifically relates to a foil rolling mill dirty oil tank back blow washing device, including main pipe, shunt spare, power part and a plurality of scraping material spare, and the one end of main pipe is connected shunt spare and is inserted into dirty oil tank, shunt spare includes tank body and a plurality of branch pipes, tank body and main pipe rotatory connection are arranged with a plurality of branch pipes outside tank body, and the end of each branch pipe is closed, and a plurality of nozzles are arranged on it interval, and the nozzle export is towards dirty oil tank inner bottom surface, power part is used for driving tank body rotation, a plurality of scraping material spare are arranged in dirty oil tank inner bottom four corners respectively, and scraping material spare includes pivot and scraper, and pivot is rotatably arranged on dirty oil tank inner bottom surface, and the scraper is arranged on the outside of pivot and is spaced apart in the circumference, and the distance between tank body outside and pivot is less than the sum of the length of branch pipe and scraper. The utility model is washed by conveying high pressure gas or oil liquid to the bottom of dirty oil tank, so that the deposit such as oil dirt is separated from the inner wall of dirty oil tank and is mixed with rolling oil, and avoids the deposit residue.

Description

Technical Field

[0001] This utility model belongs to the field of dirt removal technology, specifically relating to a back-blowing and washing device for the sludge tank of a foil rolling mill. Background Technology

[0002] The rolling oil used in rolling mills can be used for process lubrication in large and medium-sized cold rolling mills. The rolling oil has good lubricity, cooling and annealing cleaning properties. During the operation of the rolling mill, after the rolling oil is used, it is discharged into the sludge tank through the return oil pipeline. The rolling oil in the sludge tank is pumped to the filtration equipment by multiple filter pumps for treatment, and then the rolling oil is recycled back to the rolling mill for reuse.

[0003] During the rolling process, the used rolling oil contains dust, sludge, and other impurities, which settle in the sludge tank, causing a layer of oil or grease to accumulate at the bottom of the tank. Over time, the grease becomes more and thicker, resulting in a smaller tank volume and increased pressure for subsequent filtration.

[0004] Currently, the treatment of sludge and grease at the bottom of the sludge tank requires extracting the rolling oil and then having professionals wearing special protective gear enter the tank for cleaning. This method has two drawbacks: firstly, the oil contains certain additives, diatomaceous earth, filter aids, and other impurities, which produce a pungent odor, and the cleaning process is time-consuming and labor-intensive; secondly, it cannot guarantee thorough cleaning and may leave a lot of residue. Summary of the Invention

[0005] This invention addresses the problem that current methods for cleaning oil deposits in the sludge tank of rolling mills require regular manual entry, resulting in long cleaning times, poor working conditions, high labor costs, and ineffective cleaning with significant residue. The invention provides a back-blowing and cleaning device for the sludge tank of a foil rolling mill. This device uses high-pressure gas or oil to blow clean the bottom of the sludge tank, causing oil deposits to detach from the inner wall and mix with the rolling oil. The mixture is then extracted and filtered, ensuring complete removal of the rolling oil from the sludge tank and preventing excessive residue that is difficult to clean.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A back-blowing and cleaning device for a sludge tank in a foil rolling mill includes a main pipe, a diverter, a power unit, and multiple scraper components. One end of the main pipe extends into the bottom of the sludge tank and connects to the diverter, while the other end extends out of the sludge tank. The diverter includes a tank body and multiple branch pipes fixedly connected to the outside of the tank body. The upper side of the tank body is open and rotatably connected to the main pipe. Multiple branch pipes communicating with the inside of the tank body are evenly distributed circumferentially on the lower part of the outer side of the tank body. Each branch pipe is closed at the end and has multiple nozzles spaced apart on it. The nozzle outlets face the bottom surface of the sludge tank. High-pressure gas or oil is delivered through the main pipe to the nozzles on the branch pipes and sprayed out to blow away the oil deposits at the bottom of the sludge tank, separating the oil from the inner wall of the sludge tank and mixing it with the oil.

[0008] The power component is used to drive the box to rotate; multiple scraping components are respectively arranged at the four corners of the bottom of the sludge tank. Each scraping component includes a rotating shaft and a scraper. The rotating shaft is rotatably arranged on the bottom surface of the sludge tank. Scrapers are arranged circumferentially on the outer side of the rotating shaft. The distance between the outer side of the box and the rotating shaft is less than the sum of the lengths of the branch pipes and the scrapers. By driving the box to rotate multiple branch pipes, the blowing and washing effect on different positions at the bottom of the sludge tank is ensured, and the scraping components are used to ensure the scraping and stirring of dead corner positions.

[0009] Preferably, the main pipe extends out of the sludge tank and is connected to an air compressor or a filter pump.

[0010] Preferably, the main pipe and the housing are rotatably connected via a rotary joint.

[0011] Preferably, the nozzle opening is tilted downwards along the rotation direction of the diverter towards the bottom surface of the sludge tank to ensure the purging effect.

[0012] Preferably, the power component includes a motor, the motor is fixedly installed at the bottom of the sludge tank, the output shaft of the motor extends into the sludge tank and is fixedly connected to the bottom of the tank body, the motor drives the tank body to rotate, thereby driving multiple branch pipes to rotate.

[0013] Preferably, the power component includes a spindle and blades. The spindle is coaxially fixed inside the housing. Multiple blades are provided in the upper part of the housing. The multiple blades are evenly distributed around the outer circumference of the spindle. The blades are fixed between the spindle and the inner side wall of the housing. The multiple blades are inclined around the circumference of the housing. The multiple blades are driven to rotate by the impact of fluid in the pipeline, which in turn drives the housing to rotate.

[0014] The beneficial effects of this utility model through the above technical solution are as follows:

[0015] 1. This utility model uses high-pressure gas or oil sprayed from a nozzle to blow away oil or grease at the bottom of the sludge tank, separating it from the inner wall of the sludge tank and reducing oil deposition.

[0016] 2. This utility model drives the diverter to rotate through a power component, causing the nozzles on multiple branch pipes to rotate accordingly, ensuring the blowing and washing effect on different positions at the bottom of the sludge tank, and effectively blowing away the oil or grease deposited at the bottom of the sludge tank.

[0017] 3. This utility model uses multiple branch pipes to drive multiple scraping parts to rotate in a gear-like meshing manner when they rotate. The hanging plate scrapes away the oil stains at the bottom of the sludge tank in the dead corner of the nozzle. The rotating branch pipes and scrapers stir the inside of the sludge tank, so that the oil stains and rolling oil are mixed and easy to pump out for processing.

[0018] 4. This utility model can use an air compressor to deliver high-pressure gas to the main pipe and spray it out from the nozzle to clean the deposited oil in the sludge tank, or use a filter pump to deliver oil into the sludge tank and spray it out from the nozzle for cleaning. Then, the high-pressure gas or high-pressure oil impacts the blades to drive the tank to rotate.

[0019] 5. When dealing with oily tanks of different shapes, this utility model can clean the deposited oil or grease simply by adjusting the number of these utility models inside.

[0020] 6. This utility model utilizes the rotation of the branch pipe and scraper to ensure that the cleaned oil stains or grease, diatomaceous earth, filter aids, etc. are mixed with the rolling oil, thus ensuring the subsequent filtration effect. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0022] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0023] Figure 3 This is a schematic diagram of the structure of the current divider component of this utility model when connected to a motor.

[0024] Figure 4 A schematic diagram of the structure of this utility model with a spindle and blades inside the housing. Figure 1 .

[0025] Figure 5 A schematic diagram of the structure of this utility model with a spindle and blades inside the housing. Figure 2 .

[0026] Figure 6 A schematic diagram of the structure of this utility model with a spindle and blades inside the housing. Figure 3 .

[0027] Figure 7 This is a schematic diagram of the structure of the present invention when installed inside a rectangular oily waste tank.

[0028] The numbers in the attached diagram are as follows: 1 is the main pipe, 2 is the sludge tank, 3 is the tank body, 4 is the branch pipe, 5 is the nozzle, 6 is the rotating shaft, 7 is the scraper, 8 is the rotary joint, 9 is the spindle, and 10 is the blade. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0030] like Figures 1-6 As shown, this embodiment provides a foil rolling mill sludge tank back-blowing and cleaning device, including a main pipe 1, a diverter, a power unit, and multiple scraper components. One end of the main pipe 1 extends into the bottom of the sludge tank 2 and is connected to the diverter, while the other end extends out of the sludge tank 2. After the main pipe 1 extends out of the sludge tank 2, it is connected to an air compressor or a filter pump (not shown in the figure). When the main pipe 1 is connected to an air compressor, high-pressure gas is supplied to the main pipe 1. After impacting the oil stains and sediment, the high-pressure gas is lifted and discharged from the sludge tank 2 in the form of bubbles, which has a certain stirring effect on the sludge tank 2. When the main pipe 1 is connected to a filter pump, the rolled oil after conveying and filtering is supplied to the main pipe 1.

[0031] As one possible implementation, the upper end of the main pipe 1 extends out of the sludge tank 2 and is fixed by a bracket. The bracket can be set on the upper part of the sludge tank 2 or on other equipment outside the sludge tank 2 to fix the main pipe 1.

[0032] The diversion component includes a housing 3 and multiple branch pipes 4 fixedly connected to the outside of the housing 3. The housing 3 has an opening on its upper side and is rotatably connected to the main pipe 1. The main pipe 1 and the housing 3 are rotatably connected through a rotary joint 8. Multiple branch pipes 4 that communicate with the inside of the housing 3 are evenly distributed circumferentially on the lower part of the outer side of the housing 3. The high-pressure gas or rolling oil transported by the main pipe 1 is transported to the multiple branch pipes 4. There is a gap between the branch pipes 4 and the bottom surface of the sludge tank 2. Each branch pipe 4 is closed at the end and has multiple nozzles 5 spaced apart on it. The nozzles 5 have their outlets facing the bottom surface of the sludge tank 2. The high-pressure gas or rolling oil in the branch pipes 4 is sprayed out through the nozzles 5 and impacts the bottom surface of the sludge tank 2, blowing away the oil stains or grease deposited on the bottom surface of the sludge tank 2 and separating them from the inner wall of the sludge tank 2.

[0033] The power component is used to drive the housing 3 to rotate;

[0034] In one possible implementation, the power component includes a motor. The motor is fixedly installed at the bottom of the sludge tank 2. The output shaft of the motor extends into the sludge tank 2 and is fixedly connected to the bottom of the tank body 3. The motor drives the tank body 3 to rotate, which in turn drives multiple branch pipes 4 to rotate. This, in conjunction with multiple nozzles 5, thoroughly and effectively blows clean the bottom of the sludge tank 2 within a circular area centered on the tank body 3 and with the branch pipes 4 as the radius. Simultaneously, the stirring effect brought about by the rotation of the branch pipes 4 ensures that the blown-off oil sludge or oil stains are fully mixed with the rolling oil in the sludge tank 2. This effectively prevents oil stains from remaining in the sludge tank 2. Furthermore, the extracted sludge oil is filtered through a plate filter and an oil filter machine to enhance the filtration effect before being transported to the corresponding oil tank to meet the needs of subsequent rolling mill use.

[0035] The power component includes a spindle 9 and blades 10. The spindle 9 is coaxially fixed inside the housing 3 and is fixedly connected to the bottom surface of the housing 3. Multiple blades 10 are arranged in the upper part of the housing 3. The multiple blades 10 are evenly distributed around the outer circumference of the spindle 9. The blades 10 are fixed between the spindle 9 and the inner sidewall of the housing 3. There is a gap between the blades 10 and the bottom surface of the housing 3. The multiple blades 10 are inclined around the housing 3. Under the impact of the conveyed high-pressure gas or rolling oil, the blades 10 drive the housing 3 to rotate, thereby using the impact force of the conveyed high-pressure gas or rolling oil to drive the housing 3 and the branch pipe 4 to rotate.

[0036] The nozzle 5 opening is tilted downwards along the rotation direction of the diverter towards the bottom surface of the sludge tank 2, that is, the direction in which the high-pressure gas or rolling oil is sprayed out of the nozzle 5 is in front of its rotation direction, which further increases the impact force after spraying and improves the effect of blowing and stirring.

[0037] Multiple scraping components are respectively installed at the four corners of the bottom of the sludge tank 2. Each scraping component includes a rotating shaft 6 and a scraper 7. The rotating shaft 6 is rotatably installed on the bottom surface of the sludge tank 2. The scraper 7 is circumferentially spaced on the outer side of the rotating shaft 6. When the rotating shaft 6 and the scraper 7 rotate, the lower side of the scraper 7 scrapes the bottom surface of the sludge tank 2. At the same time, the stirring effect generated by its rotation further ensures the mixing effect of oil and sludge with the oil liquid (i.e., rolling oil) in the sludge tank 2. The distance between the outer side of the tank body 3 and the rotating shaft 6 is less than the sum of the lengths of the branch pipe 4 and the scraper 7. That is, the flow divider and the scraping components form a structure similar to gear meshing. The rotation of the branch pipe 4 drives the scraper 7 to rotate. Through the rotation of multiple scraper 7, the scraping and stirring of the parts of the branch pipe 4 and the nozzle 5 that cannot be blown clean is achieved, so as to achieve a thorough cleaning of the bottom of the sludge tank 2 without dead corners and reduce the residue of oil and grease.

[0038] When in use (taking high-pressure gas purging as an example), high-pressure gas is first delivered into the main pipe 1 by an air compressor. The high-pressure gas passes through the main pipe 1, rotary joint 8, housing 3, and branch pipe 4 in sequence, and then sprays out from the nozzle 5 to purge the bottom of the sludge tank 2, so as to prevent the sediment in the rolling oil in the sludge tank 2 from being adsorbed at the bottom of the sludge tank 2 and unable to be extracted and processed.

[0039] At the same time, the power component drives the housing 3 to rotate, which in turn drives the branch pipe 4 to rotate, ensuring that most of the bottom area of ​​the sludge tank 2 is purged. Meanwhile, the rotation of the branch pipe 4 drives the scraper 7 to rotate, and the scraper 7 scrapes away the sediment (oil stains, grease, etc.) in the dead corners that the nozzle 5 cannot reach, effectively preventing oil stains from settling to the bottom of the sludge tank 2.

[0040] The rotation of multiple branch pipes 4 and multiple scrapers 7 is coordinated to stir the oily sludge tank 2, so that the oily sludge, filter aids and other substances are fully mixed with the rolling oil. The mixture is then pumped out by the filter pump and sent to the plate filter and oil filter machine for filtration.

[0041] When the main pipe 1 is connected to the filter pump, the method of delivering rolling oil to the main pipe 1 also satisfies the above process.

[0042] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A foil mill oil tank backwash device, characterized by, It includes a main pipe (1), a diverter, a power unit and multiple scraper components. One end of the main pipe (1) extends into the bottom of the sludge tank (2) and connects to the diverter, while the other end extends out of the sludge tank (2). The diversion component includes a box (3) and multiple branch pipes (4) fixedly connected to the outside of the box (3). The box (3) has an opening on the upper side and is rotatably connected to the main pipe (1). Multiple branch pipes (4) that communicate with the inside of the box (3) are evenly distributed around the lower part of the outer side of the box (3). Each branch pipe (4) is closed at the end and has multiple nozzles (5) spaced apart on it. The outlet of the nozzles (5) faces the bottom surface of the sludge tank (2). The power component is used to drive the housing (3) to rotate; Multiple scraping components are respectively arranged at the four corners of the bottom of the sludge tank (2). Each scraping component includes a rotating shaft (6) and a scraper (7). The rotating shaft (6) is rotatably arranged on the bottom surface of the sludge tank (2). The scraper (7) is arranged circumferentially on the outer side of the rotating shaft (6). The distance between the outer side of the tank body (3) and the rotating shaft (6) is less than the sum of the lengths of the branch pipe (4) and the scraper (7).

2. A device for blowing back and washing the oil tank of a foil rolling mill according to claim 1, characterized in that The main pipe (1) extends out of the sludge tank (2) and is connected to an air compressor or filter pump.

3. A device for returning and washing the oil in the oil tank of a foil rolling mill according to claim 1, characterized in that, The main tube (1) and the housing (3) are rotatably connected by a rotary joint (8).

4. The device according to claim 1, characterized in that, The nozzle (5) opening is tilted downwards along the rotation direction of the diverter towards the inner bottom surface of the sludge tank (2).

5. A device for returning and washing the oil in the oil tank of a foil rolling mill according to claim 1, characterized in that, The power component includes a motor. The motor is fixedly installed at the bottom of the sludge tank (2). The output shaft of the motor extends into the sludge tank (2) and is fixedly connected to the bottom of the tank body (3).

6. A device for returning and washing the oil in the oil tank of a foil rolling mill according to claim 1, characterized in that, The power component includes a spindle (9) and blades (10). The spindle (9) is coaxially fixed inside the housing (3). Multiple blades (10) are provided in the upper part of the housing (3). The multiple blades (10) are evenly distributed around the outer side of the spindle (9). The blades (10) are fixed between the spindle (9) and the inner sidewall of the housing (3). The multiple blades (10) are inclined around the housing (3).

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