CN212560136U

CN212560136U - Clean purification equipment of super smart oil

Info

Publication number: CN212560136U
Application number: CN202021560440.XU
Authority: CN
Inventors: 胡百君
Original assignee: Cixi Sihai Bearing Co ltd
Current assignee: Cixi Sihai Bearing Co ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-02-19
Anticipated expiration: 2030-07-31

Abstract

The utility model discloses a super-precision oil cleaning and purifying device, which comprises a sump oil pool, a stirring kettle, a mixing pool, a purifying and filtering device and a diatomite pool; the dirty oil pool is respectively communicated with the stirring kettle and the mixing pool, the stirring kettle is communicated with the mixing pool, a material conveying component is arranged between the mixing pool and the purifying and filtering device, and a feeding mechanism is arranged between the diatomite pool and the purifying and filtering device; the purifying and filtering device comprises a transmission mechanism, wherein the transmission mechanism comprises a plurality of transmission rollers and a filter screen sleeved on the transmission rollers; a sealing cover is arranged in the purifying and filtering device, a hydraulic cylinder is arranged on the purifying and filtering device, the hydraulic cylinder drives the sealing cover to move up and down relative to the filter screen, and a pressurizing device is arranged in the sealing cover; an oil collecting pool is arranged in the purifying and filtering device. The utility model has the advantages of it is following and effect: the method has the advantages of low cost, high quality of the super-refined oil and good purification effect; the waste residue block is easy to fall off from the filter screen and is easier to collect, and the recovery rate of the super essential oil is higher.

Description

Clean purification equipment of super smart oil

Technical Field

The utility model relates to a fluid processing technology field, in particular to clean purification equipment of super smart oil.

Background

The bearing mainly comprises an inner ring, an outer ring and a steel ball arranged between the inner ring and the outer ring, wherein the inner ring and the outer ring of the bearing are mainly formed by processing a bar material or a pipe material, the processes of turning, heat treatment, grinding, lapping or polishing and the like are usually needed, and the steel ball processing process usually comprises bar material or wire cold punching, filing, coarse grinding, soft grinding or smooth ball, heat treatment, hard grinding, fine grinding, lapping or grinding and rust-proof treatment. In the process of processing the bearing, a plurality of processing procedures such as filing, fine grinding and the like need to cool the bearing in the processing process through cooling oil, so the using amount and consumption of the cooling oil are extremely large, a large amount of fragments such as grinding wheel ash, scrap iron and the like are mixed in the cooling oil after cooling treatment, a producer adopts clean filtering equipment to filter impurities in the cooling oil, grinding ash (filter residue consisting of the grinding wheel ash and the scrap iron) and clean cooling oil are generated after filtering, the clean cooling oil usually also contains a large amount of oil sludge formed by fine fragments, and the oil sludge cannot be taken out in the filtering process due to the large aperture of the filter screen, so the oil sludge in the cooling oil is usually removed by adopting a diatomite mode in the prior art, the using amount of the diatomite is large, the cost is high, and in addition, the content of the oil sludge impurities in the cooling oil purified by the diatomite is about 3.5 per thousand, has the problems of high impurity content and poor purification effect.

Disclosure of Invention

The utility model aims at providing a clean purification equipment of super smart oil has low cost, low energy consumption, high quality, the better effect of purification effect.

The above technical purpose of the present invention can be achieved by the following technical solutions: a super-precision oil cleaning and purifying device comprises a dirty oil pool, a stirring kettle, a mixing pool, a purifying and filtering device and a diatomite pool;

the dirty oil pool is respectively communicated with the stirring kettle and the mixing pool through pipelines, the stirring kettle is communicated with the mixing pool through a pipeline, a material conveying assembly is arranged between the mixing pool and the purifying and filtering device, and a feeding mechanism is arranged between the diatomite pool and the purifying and filtering device;

the purifying and filtering device comprises a transmission mechanism, the transmission mechanism comprises a plurality of transmission rollers and a filter screen sleeved on the transmission rollers, and the transmission rollers rotate through a driving mechanism;

a sealing cover is also arranged in the purifying and filtering device and is arranged above the filter screen, a hydraulic cylinder is arranged on the purifying and filtering device and drives the sealing cover to move up and down relative to the filter screen, and a pressurizing device is arranged in the sealing cover;

an oil collecting pool is arranged in the purifying and filtering device and is correspondingly arranged below the filter screen.

By adopting the technical scheme, a small amount of dirty oil collected in the dirty oil pool is introduced into the stirring kettle, a proper amount of grinding ash is added into the stirring kettle and then is fully stirred to prepare the grinding ash oil, the other part of dirty oil in the dirty oil pool is introduced into the mixing pool, and then the grinding ash oil is introduced into the mixing pool and is mixed with the grinding ash oil to prepare the mixed oil, so that the proportion is easy to control. And (2) introducing the diatomite in the diatomite pool into the purification and filtration device and paving the diatomite on the upper surface of the filter screen, subsequently introducing the mixed oil in the mixed pool into the purification and filtration device, filtering out the super-precision oil to flow into the oil collection pool after the mixed oil is subjected to adsorption action of the diatomite and the grinding ash, and forming soft diatomite and grinding ash mixed slag with oil sludge adsorbed on the surface on the filter screen. Pneumatic cylinder drive sealed cowling covers on the filter screen, make its inside sealed chamber that forms, then pressurize sealed chamber through pressure device, it is real to make the mixed sediment on the filter screen receive the high pressure to compress tightly, form the waste residue piece, the pneumatic cylinder drives sealed cowling again afterwards and lifts on and reset, actuating mechanism drive driving roller rotates and makes the filter screen remove to the unloading end, can break away from the filter screen under its self gravity when the waste residue piece of filter screen upper surface removes the anterior arc end of filter screen, not only be convenient for collect, still have the lower effect of power consumption and cost, and the purification degree of super smart oil is higher.

The utility model discloses a further set up to: the driving mechanism comprises a driving motor, an output shaft of the driving motor is provided with a driving wheel, a driven wheel is coaxially and fixedly arranged on the transmission roller, and the driving wheel is in transmission fit with the driven wheel through a belt.

Through adopting above-mentioned technical scheme, driving motor starts the back, drives the action wheel and rotates, and the action wheel passes through the belt and drives from the driving wheel rotation, can drive the filter screen through the driving roller and move forward.

The utility model discloses a further set up to: the dirty oil pond is provided with gas blowing device, is provided with the mounting bracket on the dirty oil pond, and gas blowing device includes first air pump and connects in the gas blow pipeline of first air pump, and the gas blow pipeline is fixed in the mounting bracket, and the end of giving vent to anger of gas blow pipeline stretches into in the dirty oil pond.

Through adopting above-mentioned technical scheme, blow to sump oil inside, can be so that sump oil internal flow, fatlute mixes in sump oil enough evenly.

The utility model discloses a further set up to: the purification filter device is internally provided with a support frame which is arranged between the filter screens, and when the sealing cover is pressed on the filter screens, the support frame is matched with the sealing cover in an abutting mode.

Through adopting above-mentioned technical scheme, when the sealed cowling covered on the filter screen, the lower surface and the support frame of filter screen contacted for support frame and sealed cowling interact are fixed with the filter screen clamp.

The utility model discloses a further set up to: a first oil pump is arranged between the dirty oil pool and the stirring kettle, a second oil pump is arranged between the dirty oil pool and the mixing pool, and a third oil pump is arranged between the stirring kettle and the mixing pool; the material conveying assembly comprises a material conveying pipeline, and a fourth oil pump is arranged on the material conveying pipeline.

The utility model discloses a further set up to: the outlet of the conveying pipeline is provided with a horizontal spraying pipe, the horizontal spraying pipe is arranged in the sealing cover, and a plurality of oil outlets are formed in the horizontal spraying pipe at equal intervals.

Through adopting above-mentioned technical scheme, the miscella is discharged from a plurality of oil outlets of horizontal shower, and the miscella can distribute on the filter screen evenly and fully adsorb with the diatomaceous earth on the filter screen.

The utility model discloses a further set up to: a liquid level pipe is arranged outside the stirring kettle, and the lower end of the liquid level pipe is communicated with the inner cavity of the stirring kettle.

Through adopting above-mentioned technical scheme, through the demonstration of liquid level pipe, the operator can know the height of fluid in the stirred tank directly perceivedly, conveniently.

The utility model discloses a further set up to: the purifying and filtering device is internally provided with a blowing pipeline, the blowing pipeline is connected with a second air pump, the side wall of the blowing pipeline is provided with a plurality of blowing holes, the blowing holes are correspondingly arranged at the discharging end of the filter screen, and a slag collecting groove is arranged below the discharging end of the filter screen.

Through adopting above-mentioned technical scheme, the second air pump starts to blow in the pipeline of blowing to the back, and the air current blows off through the hole of blowing to on blowing the filter screen in the discharge end correspondingly, the waste residue piece on the filter screen drops fast from the filter screen more easily, effectively reduces the adhesion of waste residue piece on the filter screen.

The utility model discloses a further set up to: the purification and filtration device is internally provided with a guide plate positioned at the discharging end of the filter screen, and the guide plate is positioned above the slag collecting groove.

Through adopting above-mentioned technical scheme, the deflector can be with the leading-in to the collection sediment inslot of the waste residue piece that drops.

The utility model discloses a further set up to: the pressurizing device comprises a third air pump and an air conveying pipe connected to the third air pump, the air conveying pipe is in sealing fit with the sealing cover, and one end, far away from the third air pump, of the air conveying pipe extends into the sealing cover all the time.

To sum up, the utility model discloses following beneficial effect has:

1. after the grinding ash and the diatomite are used for adsorbing and purifying the dirty oil containing the oil sludge, the super-refined oil is collected in the oil collecting pool for recycling of a workshop, the waste grinding ash and a small amount of diatomite are properly matched to adsorb the oil sludge, and compared with the prior art that the diatomite is completely adopted for adsorbing, the method has the effect of lower cost. In addition, compared with the prior art, the content of oil sludge in the refined super-refined oil can be reduced from 3.5 per thousand to 0.015 per thousand to 0.020 per thousand, the quality of the super-refined oil is high, and the purification effect is good. Compared with soft waste residues, the waste residue blocks compressed under high pressure are easier to fall off from a filter screen and easier to collect, and the recovery rate of the super essential oil is higher;

2. the mode of stirring the mixture in a stirring kettle to prepare the grinding ash oil and then introducing the grinding ash oil into a mixing pool to prepare the mixed oil has the effect of conveniently controlling the proportion;

3. by adopting the liquid level pipe, an operator can visually and conveniently know the height of the oil in the stirring kettle;

4. the air blowing holes are used for blowing air to the filter screen at the blanking end, the waste residue blocks on the filter screen can more easily fall off from the filter screen quickly, and the adhesion of the waste residue blocks on the filter screen is effectively reduced.

Drawings

Fig. 1 is a schematic diagram of the overall structural relationship of the embodiment.

Fig. 2 is a schematic structural relationship diagram of another view angle of the embodiment.

Fig. 3 is a top view of the embodiment.

Fig. 4 is a schematic diagram of the internal structural relationship of the embodiment.

Fig. 5 is a schematic view showing an internal structural relationship of the seal housing of the embodiment, in a sectional view.

Fig. 6 is a schematic flow chart of an embodiment.

In the figure: 1. a dirty oil pool; 11. a mounting frame; 12. a first air pump; 13. a gas blowing line; 14. a first oil pump; 15. a second oil pump; 2. stirring the mixture in a kettle; 21. a feed inlet; 22. a liquid level tube; 23. a third oil pump; 24. a stirring motor; 3. a mixing tank; 31. a fourth oil pump; 32. a delivery pipeline; 4. a diatomite pool; 41. a delivery pipe; 5. a support; 51. a step; 6. a housing; 61. a driving roller; 611. a transmission belt; 612. a driven wheel; 62. filtering with a screen; 63. a drive motor; 631. a driving wheel; 632. a belt; 64. a sealing cover; 65. a hydraulic cylinder; 66. a third air pump; 661. a gas delivery pipe; 67. a support frame; 68. a barometer; 69. a guide plate; 7. a horizontal shower pipe; 71. an oil outlet hole; 8. an oil collecting pool; 9. an air blowing pipeline; 91. a second air pump; 92. a gas blowing hole; 10. a slag collecting groove.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

A super-precision oil cleaning and purifying device is shown in figures 1-6 and comprises a dirty oil pool 1, a stirring kettle 2, a mixing pool 3, a purifying and filtering device and a diatomite pool 4; dirty oil bath 1 is provided with gas blowing device, is provided with mounting bracket 11 on the dirty oil bath 1, and gas blowing device includes first air pump 12 and connects in the gas blow pipeline 13 of first air pump 12, and gas blow pipeline 13 is fixed in mounting bracket 11, and the end of giving vent to anger of gas blow pipeline 13 stretches into in dirty oil bath 1, and dirty oil bath 1 is used for holding the dirty oil, blows to dirty oil inside, can be so that the dirty oil is inside to flow, and fatlute is enough evenly to be mixed in the dirty oil. The top of stirred tank 2 is provided with agitator motor 24, is equipped with the agitating unit who links to each other with agitator motor 24 in stirred tank 2, and charge door 21 has been seted up to stirred tank 2's upper end, and the discharge gate has been seted up to stirred tank 2's bottom, and stirred tank 2 is provided with vertical liquid level pipe 22 outward, and liquid level pipe 22's lower extreme is linked together with stirred tank 2 inner chambers, and through the demonstration of liquid level pipe 22, the operator can be directly perceived, conveniently knows the height of fluid in stirred tank 2. The stirring kettle 2 is arranged on a support 5, a step 51 is arranged on the support 5, and an operator steps on the step 51 to conveniently add grinding dust into the feed opening 21.

As shown in fig. 1-5, the dirty oil tank 1 is respectively communicated with the stirring kettle 2 and the mixing tank 3 through pipelines, a first oil pump 14 and a second oil pump 15 are arranged in the dirty oil tank 1, the first oil pump 14 is arranged on the pipelines of the dirty oil tank 1 and the stirring kettle 2, and the second oil pump 15 is arranged on the pipelines of the dirty oil tank 1 and the mixing tank 3; stirred tank 2 and mixing tank 3 are linked together through the pipeline, are provided with third oil pump 23 on the pipeline between stirred tank 2's discharge gate and mixing tank 3. Be provided with between mixing tank 3 and the purification filter equipment and defeated material subassembly, defeated material subassembly is provided with fourth oil pump 31 including defeated pipeline 32 in the mixing tank 3, and the entry end of defeated pipeline 32 links to each other with fourth oil pump 31, and the exit end of defeated pipeline 32 stretches into in the purification filter equipment.

As shown in fig. 1-5, the purifying and filtering apparatus includes a casing 6, a transmission mechanism is disposed in the casing 6, the transmission mechanism includes four transmission rollers 61 and a filter screen 62 sleeved on the transmission rollers 61, the transmission rollers 61 rotate through a driving mechanism, and the transmission rollers 61 are in transmission fit through a transmission belt 611; the driving mechanism comprises a driving motor 63 fixedly mounted on the machine shell 6, an output shaft of the driving motor 63 is provided with a driving wheel 631, the driving roller 61 is coaxially and fixedly provided with a driven wheel 612, and the driving wheel 631 is in transmission fit with the driven wheel 612 through a belt 632. A sealing cover 64 is further arranged in the machine shell 6, the lower end of the sealing cover 64 is in an opening shape, the sealing cover 64 is arranged above the filter screen 62, a hydraulic cylinder 65 is arranged at the top of the machine shell 6, the hydraulic cylinder 65 drives the sealing cover 64 to move up and down along the vertical direction relative to the filter screen 62, and a pressurizing device is arranged in the sealing cover 64; the pressurizing device comprises a third air pump 66 and an air pipe 661 connected to the third air pump 66, the air pipe 661 is in sealing fit with the sealing cover 64, and one end of the air pipe 661, which is far away from the third air pump 66, extends into the sealing cover 64 all the time. The casing 6 is internally provided with a support frame 67, the support frame 67 is arranged between the upper side and the lower side of the filter screen 62, and when the seal cover 64 is pressed down on the filter screen 62, the support frame 67 is matched with the seal cover 64 in a propping manner.

As shown in fig. 1-5, the outlet end of the material delivery pipe 32 extends into the sealing cover 64, the outlet of the material delivery pipe 32 is provided with a horizontal spray pipe 7 arranged along the width direction of the filter screen 62, the horizontal spray pipe 7 is arranged in the sealing cover 64, a plurality of oil outlets 71 are arranged on the horizontal spray pipe 7 at equal intervals, the mixed oil is discharged from the plurality of oil outlets 71 of the horizontal spray pipe 7, and the mixed oil can be uniformly distributed on the filter screen 62 and fully adsorbed with the diatomite on the filter screen 62. A feeding mechanism is arranged between the diatomite pool 4 and the purification and filtration device, a conveying pipe 41 of the feeding mechanism extends into the sealing cover 64, and the side wall of the conveying pipe 41 is also in sealing fit with the sealing cover 64. An air pressure detection device is arranged in the sealing cover 64, an air pressure meter 68 is arranged on the machine shell 6, and the air pressure meter 68 is connected with the air pressure detection device.

As shown in fig. 1 to 5, an oil collecting tank 8 is disposed in the casing 6, the oil collecting tank 8 is correspondingly disposed below the filter screen 62, an air blowing pipe 9 is disposed in the casing 6, one end of the air blowing pipe 9 is connected to a second air pump 91, a plurality of air blowing holes 92 are disposed on a side wall of the air blowing pipe 9, the air blowing holes 92 are correspondingly disposed at a discharging end of the filter screen 62, a slag collecting tank 10 is disposed below the discharging end of the filter screen 62, and the slag collecting tank 10 is disposed adjacent to the oil collecting tank 8. Two guide plates 69 positioned at the discharging end of the filter screen 62 are arranged on the inner walls of the two sides of the machine shell 6, and the guide plates 69 are positioned above the slag collecting groove 10.

The utility model discloses a basic operating principle does: and a small amount of dirty oil collected in the dirty oil pool 1 is introduced into the stirring kettle 2, a proper amount of mill ash is added into the stirring kettle 2, then the mixture is fully stirred to prepare mill ash oil, the other part of dirty oil in the dirty oil pool 1 is introduced into the mixing pool 3, and then the mill ash oil is introduced into the mixing pool 3 and mixed with the mill ash oil to prepare mixed oil, so that the proportion is easy to control. The kieselguhr in the kieselguhr pool 4 is introduced into the purification and filtration device and laid on the upper surface of the filter screen 62, then the mixed oil in the mixed pool 3 is introduced into the purification and filtration device, because the kieselguhr surface has more adsorption holes, the porosity is large, the adsorbability is strong, a large amount of small grinding ash particles have large adsorption area, the mixed oil flows into the oil collecting pool 8 after the adsorption effect of the kieselguhr and the grinding ash, and the soft kieselguhr and the grinding ash mixed slag with the surface adsorbing oil sludge are formed on the filter screen 62. The hydraulic cylinder 65 drives the sealing cover 64 to cover the filter screen 62, the lower surface of the upper filter screen 62 contacts with the support frame 67, so that the support frame 67 and the sealing cover 64 interact to clamp and fix the filter screen 62, a sealed cavity is formed in the filter screen 62, then the sealed cavity is pressurized by the pressurizing device, mixed slag on the filter screen 62 is compacted by high pressure to form a waste slag block, then the hydraulic cylinder 65 drives the sealing cover 64 to lift and reset again, the driving motor 63 is started to drive the driving wheel 631 to rotate, the driving wheel 631 drives the driven wheel 612 to rotate through the belt 632, the filter screen 62 is driven to move towards the discharging end through the driving roller 61, the waste slag block on the upper surface of the filter screen 62 can be separated from the filter screen 62 under the self gravity when moving to the front arc end of the filter screen 62, in addition, the second air pump 91 is started to blow air into the air blowing pipeline 9, and air flow is blown out through, the waste residue piece on the filter screen 62 drops from the filter screen 62 more easily and fast, effectively reduces the adhesion of the waste residue piece on the filter screen 62, and the deflector 69 can be with the leading-in to the slag groove 10 of the waste residue piece that drops. Therefore, the method is convenient to collect, has the effects of low energy consumption and low cost, and has high purification degree of the super-refined oil.

When the screen 62 moves towards the discharge end, the diatomite required for the next cycle is gradually laid on the screen 62 as the screen 62 moves until the screen 62, which was originally below, is shifted to above.

Some fatlute adsorbs on the dull polish surface of tiny granule, and another part fatlute adsorbs in diatomaceous earth, and the dirty oil that contains fatlute adsorbs the purification back through dull polish and diatomaceous earth, and super smart oil is collected and is supplied the workshop to recycle in oil collecting tank 8, adopts discarded dull polish and a small amount of diatomaceous earth to adsorb fatlute with proper matching, and it adsorbs to adopt diatomaceous earth completely among the prior art, has the lower effect of cost to compare in adopting diatomaceous earth to adsorb completely among the prior art. In addition, compared with the prior art, the content of oil sludge in the refined super-refined oil can be reduced from 3.5 per thousand to 0.015 per thousand to 0.020 per thousand, the quality of the super-refined oil is high, and the purification effect is good. The waste residue blocks compressed by high pressure are easier to fall off from the filter screen 62 and easier to collect than soft waste residues, and the recovery rate of the super essential oil is higher.

The above is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles in accordance with the claims of the present invention are included in the claims of the present invention.

Claims

1. The utility model provides a clean purification equipment of super smart oil which characterized in that: comprises a sump oil pool (1), a stirring kettle (2), a mixing pool (3), a purifying and filtering device and a diatomite pool (4);

the dirty oil tank (1) is respectively communicated with the stirring kettle (2) and the mixing tank (3) through pipelines, the stirring kettle (2) is communicated with the mixing tank (3) through pipelines, a material conveying assembly is arranged between the mixing tank (3) and the purifying and filtering device, and a feeding mechanism is arranged between the diatomite tank (4) and the purifying and filtering device;

the purification and filtration device comprises a transmission mechanism, the transmission mechanism comprises a plurality of transmission rollers (61) and a filter screen (62) sleeved on the transmission rollers (61), and the transmission rollers (61) rotate through a driving mechanism;

a sealing cover (64) is further arranged in the purifying and filtering device, the sealing cover (64) is arranged above the filter screen (62), a hydraulic cylinder (65) is arranged on the purifying and filtering device, the hydraulic cylinder (65) drives the sealing cover (64) to move up and down relative to the filter screen (62), and a pressurizing device is arranged in the sealing cover (64);

an oil collecting pool (8) is arranged in the purification and filtration device, and the oil collecting pool (8) is correspondingly arranged below the filter screen (62).

2. The ultra-precision oil cleaning and purifying equipment of claim 1, wherein: the driving mechanism comprises a driving motor (63), an output shaft of the driving motor (63) is provided with a driving wheel (631), a driven wheel (612) is coaxially and fixedly arranged on the transmission roller (61), and the driving wheel (631) is in transmission fit with the driven wheel (612) through a belt (632).

3. The ultra-precision oil cleaning and purifying equipment of claim 1, wherein: dirty oil bath (1) is provided with gas blowing device, be provided with mounting bracket (11) on dirty oil bath (1), gas blowing device include first air pump (12) and connect in gas blow pipeline (13) of first air pump (12), gas blow pipeline (13) are fixed in mounting bracket (11), the end of giving vent to anger of gas blow pipeline (13) stretch into in dirty oil bath (1).

4. The ultra-precision oil cleaning and purifying equipment of claim 1, wherein: be equipped with support frame (67) in the purification filter equipment, support frame (67) are located between filter screen (62), work as sealed cowling (64) push down in when on filter screen (62), support frame (67) with sealed cowling (64) counterbalance cooperation.

5. The ultra-precision oil cleaning and purifying equipment of claim 1, wherein: a first oil pump (14) is arranged between the dirty oil pool (1) and the stirring kettle (2), a second oil pump (15) is arranged between the dirty oil pool (1) and the mixing pool (3), and a third oil pump (23) is arranged between the stirring kettle (2) and the mixing pool (3); the material conveying assembly comprises a material conveying pipeline (32), and a fourth oil pump (31) is arranged on the material conveying pipeline (32).

6. The ultra-precision oil cleaning and purifying equipment of claim 5, wherein: the outlet of the material conveying pipeline (32) is provided with a horizontal spraying pipe (7), the horizontal spraying pipe (7) is arranged in the sealing cover (64), and a plurality of oil outlets (71) are formed in the horizontal spraying pipe (7) at equal intervals.

7. The ultra-precision oil cleaning and purifying equipment of claim 1, wherein: a liquid level pipe (22) is arranged outside the stirring kettle (2), and the lower end of the liquid level pipe (22) is communicated with the inner cavity of the stirring kettle (2).

8. The ultra-precision oil cleaning and purifying equipment of claim 1, wherein: be equipped with gas blowing pipeline (9) in the purification filter equipment, gas blowing pipeline (9) are connected with second air pump (91), a plurality of gas holes (92) have been seted up to the lateral wall of gas blowing pipeline (9), gas holes (92) are located correspondingly the unloading end of filter screen (62), the unloading end below of filter screen (62) is equipped with album sediment groove (10).

9. The ultra-precision oil cleaning and purifying equipment of claim 8, wherein: the purification and filtration device is internally provided with a guide plate (69) positioned at the blanking end of the filter screen (62), and the guide plate (69) is positioned above the slag collecting groove (10).

10. The ultra-precision oil cleaning and purifying equipment of claim 1, wherein: the pressurizing device comprises a third air pump (66) and an air conveying pipe (661) connected to the third air pump (66), the air conveying pipe (661) is in sealing fit with the sealing cover (64), and one end of the air conveying pipe (661) far away from the third air pump (66) extends into the sealing cover (64) all the time.