Rubber production waste engine oil recovery treatment device and process and application of waste engine oil

Abstract

The invention relates to the technical field of recovery treatment, in particular to a rubber production waste engine oil recovery treatment device and process and application of waste engine oil, and the rubber production waste engine oil recovery treatment device comprises fine filtration equipment, fractionation equipment and purification equipment; the device further comprises a coarse filtering assembly; the coarse filtering assembly comprises a filtering tank, an annular filtering net, a liquid inlet pipe, a top block, a butt joint column, a lifting mechanism, a liquid outlet pipe, a liquid outlet valve, a blow-off pipe and a washing mechanism; during cleaning, the lifting mechanism drives the top block to move downwards until the top end of the top block is flush with the lowest point of the inner channel of the blow-off pipe, the washing mechanism is started at the moment, and water is sprayed to the annular filter screen from the upper portion for washing. Large-particle impurities adhered to the bottom of the annular filter screen are reversely washed down and fall to the top of the top block, and sewage mixed with the large-particle impurities is discharged from the sewage discharge pipe; therefore, the filtered large-particle impurities can be conveniently cleaned out.

Description

Technical Field

[0001] The present invention relates to the technical field of recycling and treatment, and in particular to a recycling and treatment device and process for waste engine oil produced by rubber production, and application of the waste engine oil. Background Art

[0002] In the rubber production process, waste oil is inevitably generated due to the extensive use of various mechanical equipment. These waste oils mainly come from regular maintenance and replacement of mechanical equipment, accidental leakage, equipment cleaning, and accidental discharge. Waste oil contains a variety of harmful substances, such as heavy metals and polycyclic aromatic hydrocarbons. If not properly handled, it will cause serious pollution to the environment; therefore, waste oil needs to be recycled. When recycling waste oil, it generally needs to go through processes such as filtration, fractionation and purification, and filtration is divided into coarse filtration and fine filtration.

[0003] During the coarse filtration, a filter screen is installed inside the filter device in the prior art. The waste oil is poured into the filter screen from the top, and large particles of impurities are intercepted at the top of the filter screen, while the remaining components are collected through the filter screen.

[0004] However, when the above method is used, a lot of large particles of impurities will accumulate on the top of the filter after a period of use, and the filter needs to be taken out and cleaned, which is troublesome. Summary of the invention

[0005] The purpose of the present invention is to provide a device and process for recovering and treating waste engine oil from rubber production, as well as an application of the waste engine oil, which can conveniently clean out the large particle impurities filtered out.

[0006] To achieve the above-mentioned purpose, in a first aspect, the present invention provides a device for recycling and treating waste oil from rubber production, comprising a fine filtering device, a fractionation device and a purification device; the fractionation device is located on one side of the fine filtering device; the purification device is located on one side of the fractionation device;

[0007] Also included is a coarse filtration assembly;

[0008] The coarse filtration assembly includes a filter tank, an annular filter screen, a liquid inlet pipe, a top block, a docking column, a lifting mechanism, a liquid outlet pipe, a liquid outlet valve, a sewage pipe and a flushing mechanism;

[0009] The filter tank is located at one side of the fine filtering device; the annular filter screen is fixedly arranged in the filter tank; the liquid inlet pipe is fixedly connected to the annular filter screen and the filter tank, and passes through the filter tank; the top block is slidably arranged in the filter tank and is located below the annular filter screen; the docking column is fixedly arranged on the top of the top block; the lifting mechanism is arranged at the bottom of the filter tank, and is used to drive the top block to slide and rise and fall; the liquid outlet pipe is connected and arranged at one side of the filter tank; the liquid outlet valve is arranged on the liquid outlet pipe; the sewage pipe is connected and arranged at one side of the filter tank; the flushing mechanism is arranged in the filter tank and is located above the annular filter screen.

[0010] Wherein, the coarse filtration assembly further comprises a plurality of legs;

[0011] The plurality of supporting legs are respectively fixedly arranged on the bottom of the filter tank.

[0012] Wherein, the coarse filtration assembly further comprises a liquid inlet hopper;

[0013] The liquid inlet hopper is arranged in communication with the top of the liquid inlet pipe.

[0014] Wherein, the coarse filtration assembly further includes a flushing pipe and a control valve;

[0015] The flushing pipe is arranged in communication with one side of the filter tank; and the control valve is arranged on the flushing pipe.

[0016] Wherein, the lifting mechanism comprises two push rods, a mounting frame, a connecting block, a screw rod and a first motor;

[0017] The two push rods are respectively fixedly connected to the push block, and are respectively slidably connected to the filter tank, and respectively pass through the filter tank; the mounting frame is fixedly arranged at the bottom of the filter tank; the connecting block is fixedly arranged at the bottom of the two push rods; the screw rod is rotatably connected to the mounting frame, and is threadedly connected to the connecting block, and passes through the connecting block; the first motor is fixedly arranged on the mounting frame, and the output end of the first motor is fixedly connected to the screw rod.

[0018] Wherein, the flushing mechanism includes a plurality of suspension rods, an annular pipe, a plurality of nozzles and a water supply pipe;

[0019] The plurality of suspension rods are fixedly arranged in the filter tank respectively; the annular tube is fixedly arranged at the bottom of the plurality of suspension rods; the plurality of nozzles are connected and arranged on the annular tube respectively, and are respectively aimed at the annular filter net; the water supply pipe is connected with the annular tube, and is fixedly connected with the filter tank, and passes through the filter tank.

[0020] In a second aspect, the present invention also provides a process for recycling waste oil from rubber production, comprising:

[0021] The collected waste oil is filtered using a coarse filter assembly to preliminarily remove large particles of impurities in the waste oil;

[0022] Use fine filtering equipment to further remove fine particle impurities in the waste oil;

[0023] Use fractionation equipment to heat the waste oil to separate it from water and other components, and finally condense the oil vapor to collect the oil;

[0024] The condensed and collected engine oil is deeply purified using purification equipment.

[0025] In the third aspect, the present invention also provides an application of waste engine oil in rubber production, wherein the waste engine oil recovered and treated by the waste engine oil recovery and treatment process for rubber production is applied to rubber production raw materials to replace traditional petroleum-based raw materials. The rubber formula comprises, by weight: 90-100 parts of raw rubber; 40-50 parts of carbon black; 20-30 parts of waste engine oil; 2-3 parts of sulfur; 3-4 parts of accelerator; and 1-3 parts of antioxidant.

[0026] The present invention relates to a device and process for recycling waste oil from rubber production and an application of waste oil. The coarse filtering component is used for coarse filtering of waste oil, the fine filtering device is used for fine filtering of waste oil, the fractionation device is used for removing water and other components in waste oil by fractionation, condensing and collecting to obtain oil, and finally using the purification device to deeply purify the collected oil to improve its quality; the outer circle of the annular filter is fixedly connected to the filter tank, the middle of the annular filter is penetrated by the liquid inlet pipe, the bottom end of the liquid inlet pipe is flush with the bottom of the annular filter; the top of the annular filter is flush with the lowest point of the internal channel of the liquid outlet pipe; the diameter of the docking column is adapted to the inner diameter of the liquid inlet pipe; the flushing mechanism can spray water from above to flush the annular filter; when in use, the lifting mechanism drives the top block to move downward until the docking column is completely removed from the inside of the liquid inlet pipe, at which time there is a cavity between the annular filter and the top block, and then the waste oil is added through the liquid inlet pipe , the waste oil directly enters the cavity between the annular filter and the top block through the liquid inlet pipe, and then the lifting mechanism drives the top block to move upward, and the top block pushes the waste oil upward, and the docking column is also inserted into the liquid inlet pipe to prevent the waste oil from flowing back into the liquid inlet pipe. As the waste oil is pushed upward, the annular filter filters the waste oil, and the filtered waste oil is located at the top of the annular filter, and large particles of impurities are intercepted at the bottom of the annular filter, and then the liquid outlet valve is opened to discharge the filtered waste oil through the liquid outlet pipe, and then the liquid outlet valve is closed; during cleaning, the lifting mechanism drives the top block to move downward until the top of the top block is level with the lowest point of the internal channel of the sewage pipe, and then the flushing mechanism is started to spray water from the top to flush the annular filter, and the large particles of impurities adhering to the bottom of the annular filter are reversely flushed down and fall to the top of the top block, and the sewage mixed with large particles of impurities are discharged from the sewage pipe; thereby, the filtered large particles of impurities can be easily cleaned out. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0028] Figure 1 It is a schematic structural diagram of the first embodiment of the present invention.

[0029] Figure 2 It is a schematic structural diagram of a coarse filtration assembly according to the first embodiment of the present invention.

[0030] Figure 3 It is a right side view of the coarse filter assembly according to the first embodiment of the present invention.

[0031] Figure 4 yes Figure 3 Cross-sectional view along the AA direction.

[0032] Figure 5 yes Figure 4 A partial enlargement of detail A.

[0033] Figure 6 It is a flowchart of the second embodiment of the present invention.

[0034] 1-fine filtration equipment, 2-fractionation equipment, 3-purification equipment, 4-coarse filtration assembly, 401-filter tank, 402-annular filter screen, 403-liquid inlet pipe, 404-top block, 405-docking column, 406-lifting mechanism, 407-liquid outlet pipe, 408-liquid outlet valve, 409-drain pipe, 410-flushing mechanism, 411-support foot, 412-liquid inlet bucket, 413-flushing pipe, 414-control valve, 415-knocking mechanism, 4061 - top rod, 4062 - mounting frame, 4063 - connecting block, 4064 - lead screw, 4065 - first motor, 4101 - suspension rod, 4102 - annular pipe, 4103 - nozzle, 4104 - water supply pipe, 4151 - hydraulic cylinder, 4152 - mounting box, 4153 - sliding rod, 4154 - rubber head, 4155 - second motor, 4156 - turntable, 4157 - first connecting rod, 4158 - second connecting rod, 4159 - third connecting rod. DETAILED DESCRIPTION

[0035] The first embodiment of the present application is:

[0036] See also Figure 1-Figure 5 ,in, Figure 1 It is a schematic structural diagram of the first embodiment of the present invention. Figure 2 It is a schematic structural diagram of a coarse filtration assembly according to the first embodiment of the present invention. Figure 3 It is a right side view of the coarse filter assembly according to the first embodiment of the present invention. Figure 4 yes Figure 3 Cross-sectional view along the AA direction. Figure 5 yes Figure 4 A partial enlargement of detail A.

[0037] The present invention provides a device for recycling and treating waste oil from rubber production, comprising a fine filtering device 1, a fractionating device 2 and a purification device 3; and a coarse filtering component 4; the coarse filtering component 4 comprises a filter tank 401, an annular filter screen 402, a liquid inlet pipe 403, a top block 404, a docking column 405, a lifting mechanism 406, a liquid outlet pipe 407, a liquid outlet valve 408, a sewage pipe 409 and a flushing mechanism 410; the coarse filtering component 4 also comprises a plurality of legs 411; the coarse filtering component 4 also comprises a liquid inlet bucket 412; the coarse filtering component 4 also comprises a flushing pipe 413 and a control valve 414; the lifting mechanism 406 comprises two top rods 406 1. A mounting frame 4062, a connecting block 4063, a screw rod 4064 and a first motor 4065; the flushing mechanism 410 includes a plurality of suspension rods 4101, an annular tube 4102, a plurality of nozzles 4103 and a water supply pipe 4104; the coarse filtering component 4 also includes a plurality of knocking mechanisms 415; the knocking mechanism 415 includes a hydraulic cylinder 4151, a mounting box 4152, two sliding rods 4153, two rubber heads 4154, a second motor 4155, a rotating disk 4156, a first connecting rod 4157, a second connecting rod 4158 and a third connecting rod 4159; the aforementioned scheme can conveniently clean out the large particles of impurities filtered out.

[0038] Further, the fractionation device 2 is located at one side of the fine filtering device 1; the purification device 3 is located at one side of the fractionation device 2; the filter tank 401 is located at one side of the fine filtering device 1; the annular filter screen 402 is fixedly arranged in the filter tank 401; the liquid inlet pipe 403 is fixedly connected to the annular filter screen 402, and is fixedly connected to the filter tank 401, and passes through the filter tank 401; the top block 404 is slidably arranged in the filter tank 401 and is located below the annular filter screen 402; the docking column 405 is fixedly arranged on the top of the top block 404; the lifting mechanism 406 is arranged at the bottom of the filter tank 401, for driving the top block 404 to slide and rise and fall; the liquid outlet pipe 407 is connected and arranged on one side of the filter tank 401; the liquid outlet valve 408 is arranged on the liquid outlet pipe 407; the sewage pipe 409 is connected and arranged on one side of the filter tank 401; the flushing mechanism 410 is arranged in the filter tank 401 and is located above the annular filter screen 402.

[0039] In this embodiment, the coarse filter assembly 4 is used to perform coarse filtration on the waste oil, the fine filter device 1 is used to perform fine filtration on the waste oil, the fractionation device 2 is used to remove moisture and other components in the waste oil by fractionation, condense and collect the oil, and finally use the purification device 3 to deeply purify the collected oil to improve the quality; the outer circle of the annular filter 402 is fixedly connected to the filter tank 401, the middle of the annular filter 402 is penetrated by the liquid inlet pipe 403, and the bottom end of the liquid inlet pipe 403 is flush with the bottom of the annular filter 402; The top of the annular filter 402 is flush with the lowest point of the internal channel of the liquid outlet pipe 407; the diameter of the docking column 405 is adapted to the inner diameter of the liquid inlet pipe 403; the flushing mechanism 410 can spray water from above to flush the annular filter 402; when in use, the lifting mechanism 406 drives the top block 404 to move downward until the docking column 405 is completely removed from the inside of the liquid inlet pipe 403, at which time there is a cavity between the annular filter 402 and the top block 404, and then the waste oil is added through the liquid inlet pipe 403, and the waste oil is directly The waste oil enters the cavity between the annular filter screen 402 and the top block 404, and then the lifting mechanism 406 drives the top block 404 to move upward, and the top block 404 pushes the waste oil upward, and the docking column 405 is also inserted into the liquid inlet pipe 403 to prevent the waste oil from flowing back into the liquid inlet pipe 403. As the waste oil is pushed upward, the annular filter screen 402 filters the waste oil, and the filtered waste oil is located at the top of the annular filter screen 402, and large particles of impurities are intercepted at the bottom of the annular filter screen 402, and then the outlet valve 408 is opened, and the waste oil is discharged through the outlet pipe 403. 07 The waste oil after filtration is discharged, and then the liquid outlet valve 408 is closed; during cleaning, the lifting mechanism 406 drives the top block 404 to move downward until the top of the top block 404 is level with the lowest point of the internal channel of the sewage pipe 409, and then the flushing mechanism 410 is started to spray water from above to flush the annular filter 402, and the large particles of impurities adhered to the bottom of the annular filter 402 are reversely flushed down and fall to the top of the top block 404, and the sewage mixed with the large particles of impurities are discharged from the sewage pipe 409; thereby, the filtered large particles of impurities can be easily cleaned out.

[0040] Furthermore, the plurality of legs 411 are respectively fixedly disposed on the bottom of the filter tank 401 .

[0041] In this embodiment, the plurality of legs 411 support the filter tank 401 , and the bottom is convenient for installing the lifting mechanism 406 .

[0042] Furthermore, the liquid inlet hopper 412 is connected and arranged at the top of the liquid inlet pipe 403 .

[0043] In this embodiment, the liquid inlet hopper 412 is used to facilitate adding waste oil into the liquid inlet pipe 403.

[0044] Furthermore, the flushing pipe 413 is arranged in communication with one side of the filter tank 401 ; and the control valve 414 is arranged on the flushing pipe 413 .

[0045] In this embodiment, the flushing pipe 413 is flushed with the drain pipe 409. During cleaning, the top of the top block 404 is flushed with the lowest point of the internal channel of the drain pipe 409 and is also flushed with the lowest point of the internal channel of the flushing pipe 413. The flushing pipe 413 is externally connected to a high-pressure water source. When the control valve 414 is opened, the high-pressure water flow directly enters the filter tank 401 to flush the large particles of impurities on the top of the top block 404 (the large particles of impurities flushed from the annular filter net 402 and the large particles of impurities adhered to the top of the top block 404 itself) and discharge them from the drain pipe 409 to prevent the large particles of impurities from being unable to be flushed clean.

[0046] Furthermore, the two top rods 4061 are respectively fixedly connected to the top block 404, and are respectively slidably connected to the filter tank 401, and respectively pass through the filter tank 401; the mounting frame 4062 is fixedly set at the bottom of the filter tank 401; the connecting block 4063 is fixedly set at the bottom of the two top rods 4061; the screw rod 4064 is rotatably connected to the mounting frame 4062, and is threadedly connected to the connecting block 4063, and passes through the connecting block 4063; the first motor 4065 is fixedly set on the mounting frame 4062, and the output end of the first motor 4065 is fixedly connected to the screw rod 4064.

[0047] In this embodiment, the mounting bracket 4062 is used to rotatably mount the screw rod 4064, the first motor 4065 is used to drive the screw rod 4064 to rotate, and the screw rod 4064 drives the connecting block 4063, thereby driving the top block 404 to slide and rise and fall through the two top rods 4061.

[0048] Furthermore, the plurality of suspension rods 4101 are respectively fixedly arranged in the filter tank 401; the annular pipe 4102 is fixedly arranged at the bottom of the plurality of suspension rods 4101; the plurality of nozzles 4103 are respectively connected and arranged on the annular pipe 4102, and are respectively aimed at the annular filter net 402; the water supply pipe 4104 is connected to the annular pipe 4102, and is fixedly connected to the filter tank 401, and passes through the filter tank 401.

[0049] In this embodiment, multiple suspension rods 4101 hang the annular tube 4102 inside the filter tank 401, and multiple nozzles 4103 are arranged on the annular tube 4102 above the annular filter screen 402. The annular tube 4102 is connected to an external high-pressure water source through the water supply pipe 4104. After the high-pressure water source is connected, the multiple nozzles 4103 spray water toward the annular filter screen 402 to flush the large particles of impurities adhered to the bottom of the annular filter screen 402 in reverse.

[0050] Furthermore, the hydraulic cylinder 4151 is fixedly arranged on the top of the filter tank 401; the mounting box 4152 is fixedly arranged at the output end of the hydraulic cylinder 4151 and is located in the filter tank 401; the two sliding rods 4153 are respectively slidably connected with the mounting box 4152 and pass through the mounting box 4152 respectively; the two rubber heads 4154 are respectively fixedly arranged at the bottom of the two sliding rods 4153; the second motor 4155 is fixedly arranged in the mounting box 4152; the turntable 41 56 is fixedly arranged at the output end of the second motor 4155; the first connecting rod 4157 is fixedly connected to the two sliding rods 4153 respectively and is located between the two sliding rods 4153; the second connecting rod 4158 is fixedly connected to the first connecting rod 4157, and is slidably connected to the installation box 4152, and passes through the installation box 4152; the third connecting rod 4159 is rotationally connected to the second connecting rod 4158, and is rotationally connected to the turntable 4156, and is located in the installation box 4152.

[0051] In this embodiment, the second motor 4155 is used to drive the turntable 4156 to rotate, the first connecting rod 4157 connects the two sliding rods 4153, and the top end of the third connecting rod 4159 is rotatably connected to the turntable 4156 at a position deviating from the center of the circle; when the large particles of impurities that are stubbornly adhered to the annular filter 402 cannot be washed off, the hydraulic cylinder 4151 drives the installation box 4152 to descend, and finally the two rubber heads 4154 descend close to the annular filter 402, and then the second motor 4155 is started. , driving the turntable 4156 to rotate, the turntable 4156 drives the second connecting rod 4158 to slide reciprocatingly up and down through the third connecting rod 4159, the second connecting rod 4158 drives the two sliding rods 4153 to lift and reciprocate through the first connecting rod 4157, and the two sliding rods 4153 drive the two rubber heads 4154 to lift and reciprocate, knocking the annular filter 402 to make the annular filter 402 vibrate, and some stubborn large particles of impurities that adhere to the annular filter 402 are shaken off, so that the annular filter 402 can be cleaned more cleanly.

[0052] The present embodiment describes a device for recycling and treating waste oil from rubber production, wherein the coarse filter assembly 4 is used for coarse filtering of the waste oil, the fine filter device 1 is used for fine filtering of the waste oil, the fractionation device 2 is used for removing moisture and other components in the waste oil by fractionation, condensing and collecting the oil, and finally using the purification device 3 to deeply purify the collected oil to improve its quality; the outer circle of the annular filter 402 is fixedly connected to the filter tank 401, the middle of the annular filter 402 is penetrated by the liquid inlet pipe 403, and the bottom end of the liquid inlet pipe 403 is connected to the annular filter. The bottom of the net 402 is flat; the top of the annular filter net 402 is flush with the lowest point of the internal channel of the liquid outlet pipe 407; the diameter of the docking column 405 is adapted to the inner diameter of the liquid inlet pipe 403; the flushing mechanism 410 can spray water from above to flush the annular filter net 402; when in use, the lifting mechanism 406 drives the top block 404 to move downward until the docking column 405 is completely removed from the inside of the liquid inlet pipe 403, at which time there is a cavity between the annular filter net 402 and the top block 404, and then the waste oil is added through the liquid inlet pipe 403, and the waste oil passes through the inlet The liquid pipe 403 directly enters the cavity between the annular filter 402 and the top block 404, and then the lifting mechanism 406 drives the top block 404 to move upward, and the top block 404 pushes the waste oil upward, and the docking column 405 is also inserted into the liquid inlet pipe 403 to prevent the waste oil from flowing back into the liquid inlet pipe 403. As the waste oil is pushed upward, the annular filter 402 filters the waste oil. The filtered waste oil is located at the top of the annular filter 402, and large particles of impurities are intercepted at the bottom of the annular filter 402. Then the liquid outlet valve 408 is opened, and the waste oil is filtered through the annular filter 402. The liquid outlet pipe 407 discharges the filtered waste oil, and then closes the liquid outlet valve 408; during cleaning, the lifting mechanism 406 drives the top block 404 to move downward until the top of the top block 404 is level with the lowest point of the internal channel of the sewage pipe 409, and then the flushing mechanism 410 is started to spray water from above to flush the annular filter 402, and the large particles of impurities adhered to the bottom of the annular filter 402 are reversely flushed down and fall to the top of the top block 404, and the sewage mixed with the large particles of impurities are discharged from the sewage pipe 409; thereby, the filtered large particles of impurities can be easily cleaned out.

[0053] The second embodiment of the present application is:

[0054] See also Figure 6 ,in, Figure 6 It is a flowchart of the second embodiment of the present invention.

[0055] The present invention provides a process for recycling waste oil from rubber production, comprising:

[0056] S1 uses a coarse filter assembly 4 to preliminarily remove large particles of impurities in the collected waste oil;

[0057] S2 uses fine filtering equipment 1 to further remove fine particle impurities in the waste oil;

[0058] S3 utilizes fractionation equipment 2 to heat the waste engine oil to separate the engine oil from water and other components, and finally condenses and collects the oil vapor to obtain the engine oil;

[0059] S4: The condensed and collected engine oil is subjected to deep purification treatment by the purification device 3.

[0060] The third embodiment of the present application is:

[0061] The present invention provides an application of waste engine oil in rubber production, wherein the waste engine oil recovered and treated by the waste engine oil recovery and treatment process in rubber production is applied to rubber production raw materials to replace traditional petroleum-based raw materials. The rubber formula comprises, by weight: 90 to 100 parts of raw rubber; 40 to 50 parts of carbon black; 20 to 30 parts of waste engine oil; 2 to 3 parts of sulfur; 3 to 4 parts of accelerator; and 1 to 3 parts of antioxidant.

[0062] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A device for recycling and treating waste oil from rubber production, comprising a fine filtering device, a fractionation device and a purification device; the fractionation device is located on one side of the fine filtering device; the purification device is located on one side of the fractionation device; characterized in that: Also included is a coarse filtration assembly; The coarse filtration assembly includes a filter tank, an annular filter screen, a liquid inlet pipe, a top block, a docking column, a lifting mechanism, a liquid outlet pipe, a liquid outlet valve, a sewage pipe and a flushing mechanism; The filter tank is located at one side of the fine filtering device; the annular filter screen is fixedly arranged in the filter tank; the liquid inlet pipe is fixedly connected to the annular filter screen and the filter tank, and passes through the filter tank; the top block is slidably arranged in the filter tank and is located below the annular filter screen; the docking column is fixedly arranged on the top of the top block; the lifting mechanism is arranged at the bottom of the filter tank, and is used to drive the top block to slide and rise and fall; the liquid outlet pipe is connected and arranged at one side of the filter tank; the liquid outlet valve is arranged on the liquid outlet pipe; the sewage pipe is connected and arranged at one side of the filter tank; the flushing mechanism is arranged in the filter tank and is located above the annular filter screen.

2. The device for recycling waste oil from rubber production as claimed in claim 1, characterized in that: The coarse filter assembly also includes a plurality of legs; The plurality of supporting legs are respectively fixedly arranged on the bottom of the filter tank.

3. The device for recycling waste oil from rubber production as claimed in claim 2, characterized in that: The coarse filtration assembly also includes a liquid inlet hopper; The liquid inlet hopper is arranged in communication with the top of the liquid inlet pipe.

4. The device for recovering and treating waste oil from rubber production as claimed in claim 3, characterized in that: The coarse filter assembly also includes a flushing pipe and a control valve; The flushing pipe is arranged in communication with one side of the filter tank; and the control valve is arranged on the flushing pipe.

5. The device for recovering and treating waste oil from rubber production as claimed in claim 4, characterized in that: The lifting mechanism comprises two push rods, a mounting frame, a connecting block, a screw rod and a first motor; The two push rods are respectively fixedly connected to the push block, and are respectively slidably connected to the filter tank, and respectively pass through the filter tank; the mounting frame is fixedly arranged at the bottom of the filter tank; the connecting block is fixedly arranged at the bottom of the two push rods; the screw rod is rotatably connected to the mounting frame, and is threadedly connected to the connecting block, and passes through the connecting block; the first motor is fixedly arranged on the mounting frame, and the output end of the first motor is fixedly connected to the screw rod.

6. The device for recycling waste oil from rubber production as claimed in claim 5, characterized in that: The flushing mechanism includes a plurality of suspension rods, an annular pipe, a plurality of sprinkler heads and a water supply pipe; The plurality of suspension rods are fixedly arranged in the filter tank respectively; the annular tube is fixedly arranged at the bottom of the plurality of suspension rods; the plurality of nozzles are connected and arranged on the annular tube respectively, and are respectively aimed at the annular filter net; the water supply pipe is connected with the annular tube, and is fixedly connected with the filter tank, and passes through the filter tank.

7. A process for recycling waste oil from rubber production, applied to a device for recycling waste oil from rubber production as claimed in any one of claims 1 to 6, characterized in that: include: The collected waste oil is filtered using a coarse filter assembly to preliminarily remove large particles of impurities in the waste oil; Use fine filtering equipment to further remove fine particle impurities in the waste oil; Use fractionation equipment to heat the waste oil to separate it from water and other components, and finally condense the oil vapor to collect the oil; The condensed and collected engine oil is deeply purified using purification equipment.

8. An application of waste engine oil in rubber production, characterized in that: The waste engine oil recovered and treated by the process for recycling waste engine oil in rubber production as described in claim 7 is used as raw material for rubber production to replace traditional petroleum-based raw materials. The rubber formula includes, by weight: 90-100 parts of raw rubber; 40-50 parts of carbon black; 20-30 parts of waste engine oil; 2-3 parts of sulfur; 3-4 parts of accelerator; and 1-3 parts of antioxidant.

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