CN111826229A - Super-precision oil cleaning and purifying process and treatment equipment thereof - Google Patents
Super-precision oil cleaning and purifying process and treatment equipment thereof Download PDFInfo
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- CN111826229A CN111826229A CN202010757925.6A CN202010757925A CN111826229A CN 111826229 A CN111826229 A CN 111826229A CN 202010757925 A CN202010757925 A CN 202010757925A CN 111826229 A CN111826229 A CN 111826229A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M175/00—Working-up used lubricants to recover useful products ; Cleaning
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M175/00—Working-up used lubricants to recover useful products ; Cleaning
- C10M175/0008—Working-up used lubricants to recover useful products ; Cleaning with the use of adsorbentia
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M175/00—Working-up used lubricants to recover useful products ; Cleaning
- C10M175/0058—Working-up used lubricants to recover useful products ; Cleaning by filtration and centrifugation processes; apparatus therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/74—Recovery of fats, fatty oils, fatty acids or other fatty substances, e.g. lanolin or waxes
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- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a super-precision oil cleaning and purifying process and treatment equipment thereof, comprising the following steps: step one, preparing grinding ash oil liquid: introducing the dirty oil into a stirring kettle, adding the grinding dust and stirring to prepare grinding dust oil liquid uniformly mixed with the grinding dust; step two, mixing: introducing dirty oil and the oil solution of the mill ash into a mixing tank to prepare mixed oil; step three, adsorption and purification: introducing the diatomite and the mixed oil into a purification and filtration device, and filtering the diatomite and the ground ash mixed slag by using a filter screen to generate super-essential oil; step four: high-pressure fine filtration: covering a sealing cover on the filter screen, pressurizing by a pressurizing device, and compacting the mixed slag to form a waste slag block; step five: and discharging the waste residue blocks. The invention has the following advantages and effects: the method has the advantages that the cost is lower, the content of oil sludge in the purified super-refined oil can be reduced from 3.5 per mill to 0.015 per mill to 0.020 per mill, the quality of the super-refined oil is higher, and the purification effect is better; 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
Technical Field
The invention relates to the technical field of oil treatment, in particular to a process for cleaning and purifying super-refined oil and treatment equipment thereof.
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 carry out filtering treatment on impurities in the cooling oil, the filtering treatment generates grinding ash (filter residue consisting of the grinding wheel ash, the scrap iron and a small amount of particles with magnetic fragments) and clean cooling oil, the clean cooling oil usually also contains a large amount of oil sludge formed by fine fragments, and the oil sludge cannot be filtered in the filtering process due to the large aperture of the filter screen, so the diatomite is usually adopted to remove the oil in the prior art, the using amount of the diatomite is large, the cost is high, and in addition, the content of 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 invention aims to provide a clean purification process of super-refined oil, which has the advantages of low cost, high quality and good purification effect. The invention also aims to provide the equipment for cleaning and purifying the ultra-precision oil, which has the effect of low energy consumption.
The technical purpose of the invention is realized by the following technical scheme: a process for cleaning and purifying super-refined oil comprises the following steps:
step one, preparing grinding ash oil liquid: introducing dirty oil with oil sludge in a dirty oil pool into a stirring kettle, adding mill ash into the stirring kettle, and stirring, wherein the mass ratio of the mill ash to the dirty oil is 1: 8-1: 15, so as to prepare mill ash oil liquid uniformly mixed with the mill ash;
step two, mixing: introducing dirty oil with oil sludge in a dirty oil pool and the ash grinding oil liquid prepared in the step one into a mixing pool, wherein the mass ratio of the ash grinding oil to the dirty oil is 1: 100-1: 200, and preparing mixed oil;
step three, adsorption and purification: and D, introducing diatomite into the purification and filtration device, paving the diatomite on the filter screen, and introducing the mixed oil obtained in the step two into the purification and filtration device, wherein the mass ratio of the diatomite to the mixed oil is 1: 20-1: 30, oil sludge in the mixed oil is adsorbed on the diatomite and the mill ash, a filter screen filters mixed slag formed by the diatomite and the mill ash to generate super-refined oil, and the super-refined oil after adsorption and purification flows into an oil collecting pool;
step four, high-pressure fine filtration: covering a sealing cover on the filter screen, forming a pressurizing chamber between the sealing cover and the filter screen, pressurizing the pressurizing chamber through a pressurizing device, compacting mixed slag formed by soft diatomite and grinding ash into a waste slag block, and simultaneously separating super essential oil attached to the mixed slag from the mixed slag under high pressure and flowing into an oil collecting pool;
step five, discharging waste residue blocks: the sealing cover resets, and the filter screen rotates, makes the waste residue piece on the filter screen break away from the filter screen under self gravity.
Through adopting above-mentioned technical scheme, partly 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 once more in the oil collecting tank, 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 effect that the cost is lower to compare in adsorbing 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 block compressed by high pressure is easier to fall off from the filter screen and is easier to collect than soft waste residue block, and the recovery rate of the super essential oil is higher.
The invention is further provided with: in the first step, the stirring is carried out in the stirring kettle for 1 time every 5min, and the stirring time is set to be 1min each time.
By adopting the technical scheme, the stirring kettle is fully stirred, so that the added mill ash is uniformly dispersed in the dirty oil.
The invention is further provided with: the mesh number of the filter screen in the third step is set to be 5000 plus 6000 meshes.
The invention is further provided with: and in the first step, blowing air into the dirty oil pool to uniformly distribute oil sludge in the dirty oil, wherein the air blowing time is 20-30s, the air blowing amount for blowing air into the dirty oil is set to be 0.5mm for carrying out thin film planting, and the air blowing pressure is set to be 0.15-0.3 MPa.
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 invention is further provided with: the fourth step is that the pressurizing device pressurizes the inside of the pressurizing cavity to 1.5-2.5MPa for 1-2 min.
The invention is further provided with: and after the steps I to III are circulated for multiple times, performing high-pressure filtration on the mixed slag on the filter screen subjected to multiple adsorption and purification through the step four, and finally separating the waste slag block from the filter screen through the step five.
By adopting the technical scheme, a large amount of mixed slag accumulated on the filter screen is subjected to uniform high-pressure fine filtration after the first step, the second step and the third step are subjected to multiple circulating filtration, so that the energy and cost saving effect is achieved.
The other technical purpose of the invention is realized by the following technical scheme: a super-precision oil cleaning and purifying treatment 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;
the purifying and filtering device is also internally provided with a sealing cover which is arranged above the filter screen and is provided with a hydraulic cylinder, 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 and is correspondingly arranged below the filter screen.
Through adopting above-mentioned technical scheme, the sump oil that gathers in the sump oil pond lets in to the stirred tank in a small amount to add the intensive mixing after the right amount grinds the ash and make into the mill ash oil in the stirred tank, let in to the mixing tank with another part sump oil in the sump oil pond, let in mill ash oil to the mixing tank and mix and make into the miscella afterwards, so, easily control ratio. The method comprises the steps of introducing the diatomite in the diatomite pool into a purification and filtration device and paving the diatomite on the upper surface of a 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 an oil collection pool after the mixed oil is adsorbed by the diatomite and the grinding ash, forming the diatomite with the surface adsorbed with oil sludge and the mixed slag of the grinding ash on the filter screen, wherein the mixed slag is soft. 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 invention is further provided with: 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 invention is further provided with: 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.
The invention is further provided with: 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 down and is arranged 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.
In conclusion, the invention has the following beneficial effects:
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 steps one to three are circularly filtered for multiple times, and then a large amount of mixed slag accumulated on the filter screen is subjected to uniform high-pressure fine filtration, so that the effects of saving energy and cost are achieved;
3. 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 being convenient for controlling the ratio.
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 invention will be further described with reference to the accompanying drawings.
A super-precision oil cleaning and purifying process and treatment equipment thereof are shown in figures 1-6, which are schematic structural relationship diagrams of the treatment equipment and comprise 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 purification process of the invention comprises the following steps:
step one, preparing grinding ash oil liquid: the method comprises the steps of introducing dirty oil with oil sludge in a dirty oil pool 1 into a stirring kettle 2, adding mill ash into the stirring kettle 2, stirring, wherein the mass ratio of the mill ash to the dirty oil is 1:10, preparing mill ash oil liquid mixed with the mill ash uniformly, stirring for 1 time every 5min in the stirring kettle 2, and setting the stirring time to be 1min every time so that the added mill ash is uniformly dispersed in the dirty oil;
step two, mixing: introducing dirty oil with oil sludge in a dirty oil pool 1 and the ash grinding oil liquid prepared in the step one into a mixing pool 3, wherein the mass ratio of the ash grinding oil to the dirty oil is 1:150, and preparing mixed oil;
step three, adsorption and purification: and (2) introducing diatomite into the purification and filtration device, paving the diatomite on the filter screen 62, setting the mesh number of the filter screen 62 to be 5000 meshes, introducing the mixed oil obtained in the step two into the purification and filtration device, wherein the mass ratio of the diatomite to the mixed oil is 1:20, oil sludge in the mixed oil is adsorbed on the diatomite and the mill ash, the filter screen 62 filters mixed slag formed by the diatomite and the mill ash to generate super-refined oil, the super-refined oil after adsorption and purification flows into the oil collecting pool 8, and the 5000-mesh filter screen is adopted to realize effective filtration because the particle size of the mixed slag is basically larger than 2.6 mu m;
step four, high-pressure fine filtration: covering a sealing cover 64 on the filter screen 62, forming a pressurizing chamber between the sealing cover 64 and the filter screen 62, pressurizing the inside of the pressurizing chamber by a pressurizing device, pressurizing the inside of the pressurizing chamber to 2Mpa for 2min, compacting mixed slag formed by soft diatomite and grinding ash into waste slag blocks, simultaneously separating super-essential oil attached to the mixed slag from the mixed slag under high pressure, and flowing into the oil collecting tank 8 to form dry waste slag blocks;
step five, discharging waste residue blocks: the closure 64 is reset and the screen 62 is rotated so that the slug of debris on the screen 62 is released from the screen 62 under its own weight.
In addition, when the sump oil in sump oil pond 1 was pumped to mixing tank 3 or stirred tank 2 in, still can blow to sump oil pond 1 in step one, make fatlute in the sump oil distribute evenly in the sump oil, the time of blowing is 30s, sets up to 0.5mm to the blow volume of blowing in the sump oil and forges, and the pressure of blowing sets up to 0.20 Mpa, blows to sump oil inside, can make the inside flow of sump oil, and fatlute is enough evenly mixed in the sump oil. In order to save energy and cost, the steps from the first step to the third step can be circulated for multiple times, then the mixed slag on the filter screen 62 which is adsorbed and purified for multiple times is filtered in a unified high pressure way through the step four, and finally the waste slag block is separated from the filter screen 62 through the step five.
The basic working principle of the invention is as follows: 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. So, not only be convenient for collect, still have the effect that power consumption and cost are lower, the waste residue piece can directly be placed in steel mill direct processing, has effectively solved the feature of environmental protection problem, and the purification degree of super smart oil is higher.
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.
Example two:
a super fine oil cleaning and purifying process, the difference between this embodiment and the first embodiment is that in the first step, a proper amount of activated carbon powder is added into a stirring kettle 2, the activated carbon powder can be used as a tuberculosis agent, the activated carbon powder with the particle size of 50-120 μm is added into dirty oil, the mass of the activated carbon powder added into every 300kg of dirty oil is about 1kg, and because the activated carbon powder is provided with a large number of adsorption holes, small grinding ash particles can be adsorbed on the adsorption holes of the activated carbon through the physical adsorption effect.
The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present invention are included in the scope of the present invention.
Claims (10)
1. A super-precision oil cleaning and purifying process is characterized in that: the method comprises the following steps:
step one, preparing grinding ash oil liquid: introducing dirty oil with oil sludge in a dirty oil pool (1) into a stirring kettle (2), adding mill ash into the stirring kettle (2), and stirring, wherein the mass ratio of the mill ash to the dirty oil is 1: 8-1: 15, so as to prepare mill ash oil liquid uniformly mixed with the mill ash;
step two, mixing: introducing dirty oil with oil sludge in a dirty oil pool (1) and the ash grinding oil liquid prepared in the step one into a mixing pool (3), wherein the mass ratio of the ash grinding oil to the dirty oil is 1: 100-1: 200, and preparing mixed oil;
step three, adsorption and purification: and (2) introducing diatomite into the purification and filtration device, paving the diatomite on a filter screen (62), and introducing the mixed oil obtained in the step two into the purification and filtration device, wherein the mass ratio of the diatomite to the mixed oil is 1: 20-1: 30, oil sludge in the mixed oil is adsorbed on the diatomite and the mill ash, a filter screen (62) filters mixed slag formed by the diatomite and the mill ash to generate super-refined oil, and the super-refined oil after adsorption and purification flows into an oil collecting pool (8);
step four, high-pressure fine filtration: covering a sealing cover (64) on the filter screen (62), forming a pressurizing chamber between the sealing cover (64) and the filter screen (62), pressurizing the pressurizing chamber through a pressurizing device, compacting mixed slag formed by soft diatomite and grinding ash into a waste slag block, and simultaneously separating super essential oil attached to the mixed slag from the mixed slag under high pressure and flowing into an oil collecting pool (8);
step five, discharging waste residue blocks: the sealing cover (64) is reset, the filter screen (62) rotates, and the waste residue block on the filter screen (62) is separated from the filter screen (62) under the self-gravity.
2. The ultra-precision oil cleaning and purifying process according to claim 1, characterized in that: in the step one, the stirring is carried out in the stirring kettle (2) for 1 time every 5min, and the stirring time is set to be 1min each time.
3. The ultra-precision oil cleaning and purifying process according to claim 1, characterized in that: in the third step, the mesh number of the filter screen (62) is set to be 5000-.
4. The ultra-precision oil cleaning and purifying process according to claim 1, characterized in that: in the first step, air is blown into the dirty oil pool (1) to enable oil sludge in the dirty oil to be uniformly distributed in the dirty oil, the air blowing time is 20-30s, the air blowing amount of the air blown into the dirty oil is set to be 0.5mm, and the air blowing pressure is set to be 0.15-0.3 MPa.
5. The ultra-precision oil cleaning and purifying process according to claim 1, characterized in that: in the fourth step, the pressurizing device pressurizes the inside of the pressurizing cavity to 1.5-2.5Mpa for 1-2 min.
6. The ultra-precision oil cleaning and purifying process according to claim 1, characterized in that: after the steps I to III are circulated for multiple times, the mixed slag on the filter screen (62) which is adsorbed and purified for multiple times is filtered under high pressure in the step IV, and finally the waste slag block is separated from the filter screen (62) in the step V.
7. A processing apparatus for cleaning and purifying the super essential oil according to any one of claims 1 to 6, 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 a pipeline, and a material conveying assembly is arranged between the mixing tank (3) and the purification 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), the purifying and filtering device is provided with a hydraulic cylinder (65), 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).
8. The ultra-precision oil cleaning and purifying processing equipment as claimed in claim 7, 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).
9. The ultra-precision oil cleaning and purifying processing equipment as claimed in claim 7, 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).
10. The ultra-precision oil cleaning and purifying processing equipment as claimed in claim 7, 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.
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