CN111826229B - Clean purification process and treatment equipment for super-essential oil - Google Patents
Clean purification process and treatment equipment for super-essential oil Download PDFInfo
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- CN111826229B CN111826229B CN202010757925.6A CN202010757925A CN111826229B CN 111826229 B CN111826229 B CN 111826229B CN 202010757925 A CN202010757925 A CN 202010757925A CN 111826229 B CN111826229 B CN 111826229B
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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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- Oil, Petroleum & Natural Gas (AREA)
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- Treatment Of Sludge (AREA)
Abstract
The invention discloses a clean purification process and treatment equipment of super-essential oil, comprising the following steps: step one, preparing ash grinding oil liquid: introducing dirty oil into a stirring kettle, adding grinding ash, and stirring to prepare grinding ash oil liquid uniformly mixed with the grinding ash; step two, mixing: introducing dirty oil and ash grinding oil into a mixing tank to prepare mixed oil; step three, adsorption purification: the diatomite and the mixed oil are introduced into a purifying and filtering device, and a filter screen filters the diatomite and the ground ash mixed slag to generate super-essential oil; step four: high-pressure fine filtration: covering the sealing cover on the filter screen, pressurizing by a pressurizing device, and compacting the mixed slag into a slag block; step five: and (5) discharging the waste residue blocks. The invention has the following advantages and effects: the method has the effect of lower cost, the content of the oil sludge in the purified super-essential oil can be reduced from original 3.5 per mill to 0.015 per mill-0.020 per mill, and the super-essential oil has higher quality and better purification effect; the waste slag blocks are easy to fall off from the filter screen, are easier to collect, and have higher recovery rate of the super-essential oil.
Description
Technical Field
The invention relates to the technical field of oil treatment, in particular to a clean purification process and treatment equipment for super-essential oil.
Background
The bearing mainly comprises an inner ring and an outer ring and steel balls 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 bars or tubes, and the inner ring and the outer ring of the bearing usually need to be subjected to processes such as turning, heat treatment, grinding, lapping or polishing, and the like, and the steel balls are usually subjected to cold punching, filing, rough grinding, soft grinding or light ball, heat treatment, hard grinding, fine grinding, lapping or grinding, and rust prevention. In the bearing processing process, a plurality of processing procedures such as filing and fine grinding need to cool the bearing in the processing process through cooling oil, so the consumption and consumption of the cooling oil are extremely large, a large amount of grinding wheel ash, scrap iron and other scraps are mixed in the cooling oil after cooling treatment, a producer adopts clean filter equipment to filter and clean impurities in the cooling oil, grinding ash (the grinding wheel ash, the scrap iron and a small amount of filter residues consisting of particles with magnetic scraps) and clean cooling oil are generated after filtering, and the clean cooling oil also usually contains a large amount of sludge formed by the fine scraps, and the sludge cannot be filtered in the filtering process due to the large pore diameter of a filter screen, so the sludge in the cooling oil is usually removed in a diatomite manner in the prior art, the consumption of the diatomite is large, the cost is high, and in addition, the impurity content of the sludge in the cooling oil after the diatomite purification is about 3.5 per mill, and the purifying effect is poor.
Disclosure of Invention
The invention aims to provide a clean purification process of super-essential oil, which has the effects of low cost, high quality and good purification effect. The invention also aims to provide equipment for cleaning and purifying the super-essential oil, which has the effect of low energy consumption.
The technical aim of the invention is realized by the following technical scheme: a clean purification process of super-essential oil comprises the following steps:
step one, preparing ash grinding oil liquid: introducing dirty oil with oil sludge in a dirty oil tank into a stirring kettle, adding grinding ash into the stirring kettle, and stirring, wherein the mass ratio of the grinding ash to the dirty oil is 1:8-1:15, so as to prepare grinding ash oil liquid uniformly mixed with the grinding ash;
step two, mixing: introducing the dirty oil with the oil sludge in the dirty oil tank and the grinding oil prepared in the first step into a mixing tank, wherein the mass ratio of the grinding oil to the dirty oil is 1:100-1:200, and preparing mixed oil;
step three, adsorption purification: and (3) introducing diatomite into the purification and filtration device to spread the diatomite on the filter screen, and introducing the mixed oil 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, wherein the oil sludge in the mixed oil is adsorbed on diatomite and ground ash, a filter screen filters mixed slag formed by the diatomite and the ground ash to generate super-essential oil, and the super-essential oil after adsorption purification flows into an oil collecting tank;
step four, high-pressure fine filtration: covering a sealing cover on a filter screen, forming a pressurizing cavity between the sealing cover and the filter screen, pressurizing the pressurizing cavity by a pressurizing device, compacting mixed slag formed by soft diatomite and grinding ash into waste slag blocks, and separating super-essential oil attached to the mixed slag from the mixed slag under high pressure and flowing the super-essential oil into an oil collecting tank;
step five, discharging the waste residue blocks: the sealing cover is reset, and the filter screen rotates, so that the waste slag blocks on the filter screen are separated from the filter screen under the self gravity.
Through adopting above-mentioned technical scheme, a part of fatlute adsorbs in the mill ash surface of granule, and another part fatlute adsorbs in diatomaceous earth, and the dirty oil that contains fatlute is adsorbed the purification through mill ash and diatomaceous earth after, and super essential oil is collected in the oil collecting tank and is supplied the workshop to recycle again, adopts abandoned mill ash and a small amount of diatomaceous earth to adsorb the fatlute with suitable ratio, compared in prior art adopts diatomaceous earth to adsorb completely, has the effect that the cost is lower. In addition, compared with the prior art, the content of the sludge in the purified super-essential oil can be reduced from original 3.5 permillage to 0.015 permillage-0.020 permillage, and the super-essential oil has higher quality and better purification effect. Compared with the soft waste residue blocks, the waste residue blocks compressed under high pressure are easier to fall off from the filter screen, are easier to collect, and have higher recovery rate of super-essential oil.
The invention is further provided with: stirring is carried out for 1 time every 5min in the stirring kettle in the first step, and the stirring time is set to be 1min each time.
Through adopting above-mentioned technical scheme, fully stir in the stirred tank, make the mill ash that adds evenly disperse in dirty oil.
The invention is further provided with: and in the third step, the mesh number of the filter screen is set to 5000-6000 meshes.
The invention is further provided with: in the first step, air is blown into the dirty oil tank, so that the oil sludge in the dirty oil is 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.
Through adopting above-mentioned technical scheme, blow to the dirty oil inside, can make the dirty oil inside flow, the greasy filth mixes in the dirty oil enough evenly.
The invention is further provided with: and step four, the pressurizing device pressurizes the pressurizing cavity to 1.5-2.5Mpa for 1-2min.
The invention is further provided with: and (3) after the first step to the third step are circulated for a plurality of times, carrying out high-pressure filtration on the mixed slag on the filter screen subjected to the repeated adsorption and purification in the fourth step, and finally separating the waste slag blocks from the filter screen in the fifth step.
Through adopting above-mentioned technical scheme, with step one through step three circulation filtration back to the high pressure fine filtration of unifying of a large amount of mixed slag of piling up in the filter screen again, so, have the effect of energy and cost-saving.
The other technical purpose of the invention is realized by the following technical proposal: the treatment equipment for clean purification of the super-essential oil comprises a sewage tank, a stirring kettle, a mixing tank, a purification and filtration device and a diatomite tank;
the dirty oil tank is respectively communicated with the stirring kettle and the mixing tank through pipelines, the stirring kettle is communicated with the mixing tank through pipelines, a material conveying component is arranged between the mixing tank and the purification and filtration device, and a material conveying mechanism is arranged between the diatomite tank and the purification and filtration device;
the purifying and filtering device comprises a transmission mechanism, wherein the transmission mechanism comprises a plurality of driving rollers and a filter screen sleeved on the driving rollers, and the driving rollers rotate through a driving mechanism;
the purifying and filtering device is internally provided with a sealing cover which is arranged above the filter screen, the purifying and filtering device 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 tank is arranged in the purification and filtration device, and the oil collecting tank is correspondingly arranged below the filter screen.
By adopting the technical scheme, a small amount of dirty oil collected in the dirty oil tank is introduced into the stirring kettle, a proper amount of ground ash is added into the stirring kettle and then fully stirred to prepare ground ash oil, another part of dirty oil in the dirty oil tank is introduced into the mixing tank, and then the ground ash oil is introduced into the mixing tank to prepare mixed oil, so that the proportion is easy to control. The diatomite in the diatomite pool is introduced into the purification and filtration device and paved on the upper surface of the filter screen, then the mixed oil in the mixing pool is introduced into the purification and filtration device, after the mixed oil is adsorbed by the diatomite and the grinding dust, the super-essential oil is filtered out and flows into the oil collecting pool, the diatomite with the surface adsorbing the oil sludge and the grinding dust mixed slag are formed on the filter screen, and the mixed slag is softer. The hydraulic cylinder drives the sealed cowling to cover on the filter screen, makes its inside sealed chamber that forms, then pressurizes sealed chamber through pressurizing device, makes the mixed sediment on the filter screen compress tightly by high pressure and becomes real, forms the waste residue piece, and then the hydraulic cylinder drives the sealed cowling again and lifts the reset, and 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 own gravity when the waste residue piece of filter screen upper surface removes to the anterior arc end of filter screen, not only is convenient for collect, still has the lower effect of power consumption and cost, and the purification degree of super essential oil is higher.
The invention is further provided with: the driving mechanism comprises a driving motor, the output shaft of the driving motor is provided with a driving wheel, the driving roller is coaxially and fixedly provided with a driven wheel, and the driving wheel is in transmission fit with the driven wheel through a belt.
Through adopting above-mentioned technical scheme, after driving motor starts, drive action wheel 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 sewage oil tank is provided with a blowing device, the sewage oil tank is provided with a mounting frame, the blowing device comprises a first air pump and a blowing pipeline connected with the first air pump, the blowing pipeline is fixed on the mounting frame, and the air outlet end of the blowing pipeline extends into the sewage oil tank.
The invention is further provided with: the purification and filtration device is internally provided with a support frame which is arranged between the filter screens, and when the sealing cover is pressed down on the filter screens, the support frame is matched with the sealing cover in a propping way.
Through adopting above-mentioned technical scheme, when the sealed cowling covers on the filter screen, the lower surface of filter screen contacts with the support frame for support frame and sealed cowling interact is pressed from both sides the tight fixed with the filter screen clamp.
In summary, the invention has the following beneficial effects:
1. after the oil sludge containing the oil sludge is adsorbed and purified by the grinding ash and the diatomite, the super-essential oil is collected in an oil collecting tank for the workshop to be recycled, and the waste grinding ash and a small amount of diatomite are adopted to adsorb the oil sludge in a proper proportion, so that the method has the effect of lower cost compared with the prior art that the diatomite is completely adopted for adsorption. In addition, compared with the prior art, the content of the sludge in the purified super-essential oil can be reduced from original 3.5 permillage to 0.015 permillage-0.020 permillage, and the super-essential oil has higher quality and better purification effect. Compared with soft waste residues, the waste residue blocks compressed under high pressure are easier to fall off from the filter screen, are easier to collect, and have higher recovery rate of super-essential oil;
2. the method has the advantages that after the steps one to three are circularly filtered for a plurality of times, uniform high-pressure fine filtration is carried out on a large amount of mixed slag accumulated on the filter screen, so that the method has the effects of saving energy and cost;
3. the mode of stirring the mixture in the stirring kettle to prepare the ground ash oil and then introducing the ground ash oil into a mixing tank to prepare the mixed oil has the effect of being convenient for controlling the proportion.
Drawings
FIG. 1 is a schematic diagram of the overall structural relationship of an embodiment.
Fig. 2 is a schematic structural diagram of another view of an embodiment.
Fig. 3 is a top view of an embodiment.
Fig. 4 is a schematic diagram of the internal structural relationship of the embodiment.
FIG. 5 is a schematic diagram of the internal structural relationship of the seal housing of the embodiment, wherein the seal housing is in a cross-sectional state.
FIG. 6 is a schematic diagram of a flow relationship of an embodiment.
In the figure: 1. a dirty oil pool; 11. a mounting frame; 12. a first air pump; 13. a blowing pipeline; 14. a first oil pump; 15. a second oil pump; 2. stirring kettle; 21. a feed inlet; 22. a liquid level pipe; 23. a third oil pump; 24. a stirring motor; 3. a mixing tank; 31. a fourth oil pump; 32. a material conveying pipeline; 4. a diatomite pool; 41. a delivery tube; 5. a bracket; 51. a step; 6. a housing; 61. a driving roller; 611. a transmission belt; 612. driven wheel; 62. a filter screen; 63. a driving motor; 631. a driving wheel; 632. a belt; 64. a sealing cover; 65. a hydraulic cylinder; 66. a third air pump; 661. a gas pipe; 67. a support frame; 68. an air pressure gauge; 69. a guide plate; 7. a horizontal shower; 71. an oil outlet hole; 8. an oil collecting tank; 9. an air blowing pipeline; 91. a second air pump; 92. a blow hole; 10. a slag collecting groove.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
A clean purification process of super-essential oil and its treatment equipment are shown in fig. 1-6, which are schematic diagrams of the structural relationship of the treatment equipment, comprising a dirty oil tank 1, a stirring kettle 2, a mixing tank 3, a purification and filtration device and a diatomite tank 4; the dirty oil tank 1 is provided with air blowing device, is provided with the mounting bracket 11 on the dirty oil tank 1, and air blowing device includes first air pump 12 and connects in the pipeline 13 of blowing of first air pump 12, and the pipeline 13 of blowing is fixed in mounting bracket 11, and the end of giving vent to anger of pipeline 13 stretches into in dirty oil tank 1, and dirty oil tank 1 is arranged in holding dirty oil, blows to the dirty oil inside, can make the dirty oil inside flow, and the oil sludge is enough evenly 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 the stirred tank 2, and charge door 21 has been seted up to the upper end of stirred tank 2, and the discharge gate has been seted up to the bottom of stirred tank 2, 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 chamber, through liquid level pipe 22's demonstration, and the operator can directly perceivedly, conveniently knows the height of the interior fluid of stirred tank 2. The stirring kettle 2 is arranged on the bracket 5, the bracket 5 is provided with a step 51, and an operator steps on the step 51 to conveniently add grinding dust into the charging hole 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; the stirring kettle 2 is communicated with the mixing tank 3 through a pipeline, and a third oil pump 23 is arranged on a pipeline between a discharge port of the stirring kettle 2 and the mixing tank 3. A material conveying component is arranged between the mixing tank 3 and the purifying and filtering device and comprises a material conveying pipeline 32, a fourth oil pump 31 is arranged in the mixing tank 3, the inlet end of the material conveying pipeline 32 is connected with the fourth oil pump 31, and the outlet end of the material conveying pipeline 32 extends into the purifying and filtering device.
As shown in fig. 1-5, the purifying and filtering device comprises a casing 6, a transmission mechanism is arranged in the casing 6, the transmission mechanism comprises four driving rollers 61 and a filter screen 62 sleeved on the driving rollers 61, the driving rollers 61 rotate through a driving mechanism, and the driving rollers 61 are in transmission fit through a transmission belt 611; the driving mechanism comprises a driving motor 63 fixedly arranged on the casing 6, a driving wheel 631 is arranged on an output shaft of the driving motor 63, a driven wheel 612 is coaxially and fixedly arranged on the driving roller 61, and the driving wheel 631 is in transmission fit with the driven wheel 612 through a belt 632. A sealing cover 64 is also arranged in the casing 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 casing 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 with 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 far away from the third air pump 66 always stretches into the sealing cover 64. The casing 6 is provided with a supporting frame 67, the supporting frame 67 is arranged between the upper side and the lower side of the filter screen 62, and when the sealing cover 64 is pressed down on the filter screen 62, the supporting frame 67 is in abutting fit with the sealing cover 64.
As shown in fig. 1-5, the outlet end of the conveying pipeline 32 extends into the sealing cover 64, the outlet of the conveying pipeline 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 outlet holes 71 are formed in the horizontal spray pipe 7 at equal intervals, mixed oil is discharged from the plurality of oil outlet holes 71 of the horizontal spray pipe 7, and the mixed oil can be uniformly distributed on the filter screen 62 and fully adsorbed with diatomite on the filter screen 62. A feeding mechanism is arranged between the diatomite pool 4 and the purifying and filtering 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. The seal cover 64 is provided with an air pressure detecting device, the casing 6 is provided with an air pressure gauge 68, and the air pressure gauge 68 is connected with the air pressure detecting device.
As shown in fig. 1-5, an oil collecting tank 8 is arranged in the casing 6, the oil collecting tank 8 is correspondingly arranged below the filter screen 62, an air blowing pipeline 9 is arranged in the casing 6, one end of the air blowing pipeline 9 is connected with a second air pump 91, a plurality of air blowing holes 92 are formed in the side wall of the air blowing pipeline 9, the air blowing holes 92 are correspondingly arranged at the discharging end of the filter screen 62, a slag collecting tank 10 is arranged below the discharging end of the filter screen 62, and the slag collecting tank 10 and the oil collecting tank 8 are adjacently arranged. 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 ash grinding oil liquid: introducing dirty oil with oil sludge in a dirty oil tank 1 into a stirring kettle 2, adding grinding ash into the stirring kettle 2, stirring, wherein the mass ratio of the grinding ash to the dirty oil is 1:10, preparing grinding ash oil liquid uniformly mixed with the grinding ash, stirring for 1 time every 5min in the stirring kettle 2, and setting the stirring time to 1min each time to uniformly disperse the added grinding ash in the dirty oil;
step two, mixing: introducing the dirty oil with the oil sludge in the dirty oil tank 1 and the ash grinding oil prepared in the first step into a mixing tank 3, wherein the mass ratio of the ash grinding oil to the dirty oil is 1:150, and preparing mixed oil;
step three, adsorption purification: introducing diatomite into the purification and filtration device to enable the diatomite to be paved on the filter screen 62, setting the mesh number of the filter screen 62 to be 5000 meshes, introducing the mixed oil in the second step into the purification and filtration device, wherein the mass ratio of the diatomite to the mixed oil is 1:20, the oil sludge in the mixed oil is adsorbed on diatomite and ground ash, the filter screen 62 filters the mixed slag formed by the diatomite and the ground ash to generate super-essential oil, the super-essential oil after adsorption and purification flows into the oil collecting tank 8, and the particle diameter of the mixed slag is basically more than 2.6 mu m, so that effective filtration can be realized by adopting a 5000-mesh filter screen;
step four, high-pressure fine filtration: covering a sealing cover 64 on a filter screen 62, forming a pressurizing cavity between the sealing cover 64 and the filter screen 62, pressurizing the pressurizing cavity by a pressurizing device, pressurizing the pressurizing cavity to 2Mpa for 2min, compacting mixed slag formed by soft diatomite and grinding ash into a slag block, and separating super-essential oil attached to the mixed slag from the mixed slag under high pressure and flowing the mixed slag into an oil collecting tank 8 to form a drier slag block;
step five, discharging the waste residue blocks: the seal cap 64 is reset and the filter screen 62 rotates, so that the slag blocks on the filter screen 62 are separated from the filter screen 62 under the self-gravity.
In addition, when the dirty oil in the dirty oil tank 1 is pumped into the mixing tank 3 or the stirring kettle 2, the dirty oil tank 1 can be blown in the first step, so that the oil sludge in the dirty oil is uniformly distributed in the dirty oil, the blowing time is 30s, the blowing amount of the dirty oil is set to be 0.5mm, the blowing pressure is set to be 0.20 Mpa, the dirty oil is blown into the dirty oil, the dirty oil can flow, and the oil sludge is sufficiently uniformly mixed in the dirty oil. In order to save energy and cost, the mixed slag on the filter screen 62 for repeated adsorption and purification is uniformly filtered under high pressure after the steps one to three are circulated for a plurality of times, and finally the waste slag blocks are separated from the filter screen 62 through the step five.
The basic working principle of the invention is as follows: the dirty oil collected in the dirty oil tank 1 is slightly introduced into the stirring kettle 2, a proper amount of grinding dust is added into the stirring kettle 2, and then the mixture is fully stirred to prepare the grinding dust oil, the other part of the dirty oil in the dirty oil tank 1 is introduced into the mixing tank 3, and then the grinding dust oil is introduced into the mixing tank 3 to be mixed with the grinding dust oil to prepare the mixed oil, so that the proportion is easy to control. The diatomite in the diatomite pool 4 is introduced into the purification and filtration device and paved on the upper surface of the filter screen 62, and then the mixed oil in the mixing pool 3 is introduced into the purification and filtration device, because the diatomite surface is provided with more adsorption holes, the porosity is large, the adsorptivity is strong, the adsorption area of a large amount of ground ash small particles is large, the filtered super-essential oil flows into the oil collecting pool 8 after the mixed oil is adsorbed by the diatomite and the ground ash, and the soft diatomite and ground ash mixed slag with the surface adsorbing the oil sludge is 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 is in contact with the supporting frame 67, the supporting frame 67 and the sealing cover 64 are interacted to clamp and fix the filter screen 62, a sealing cavity is formed inside the filter screen 62, then the sealing cavity is pressurized by the pressurizing device, mixed slag on the filter screen 62 is compacted under 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 can be driven to move towards the blanking end through the driving roller 61, the slag block on the upper surface of the filter screen 62 can be separated from the filter screen 62 under the self gravity when the slag block on the upper surface of the filter screen 62 moves to the arc-shaped end in the front of the filter screen 62, in addition, the second air pump 91 is started to blow into the blowing air in the air hole 92, and the slag block on the filter screen 62 correspondingly blown to the discharging end, the slag block on the filter screen 62 is more easily and rapidly drops from the filter screen 62, the adhesion of the slag block on the filter screen 62 is effectively reduced, and the waste slag block on the guide plate 69 can guide the dropped slag block into the slag collecting tank 10. So, not only be convenient for collect, still have the effect that power consumption and cost are lower, the waste residue piece can directly send out in the steelworks and directly handle, has effectively solved the feature of environmental protection problem, and the purification degree of super essential oil is higher.
When the filter screen 62 moves toward the discharge end, diatomite required in the next cycle is gradually laid on the filter screen 62 as the filter screen 62 moves until the filter screen 62 originally below is transferred to the upper side.
And one part of the oil sludge is adsorbed on the surface of the grinding ash of the small particles, the other part of the oil sludge is adsorbed on the diatomite, and after the dirty oil containing the oil sludge is adsorbed and purified by the grinding ash and the diatomite, the super-essential oil is collected in the oil collecting tank 8 for the workshop to be recycled, and the waste grinding ash and a small amount of diatomite are adopted to adsorb the oil sludge in a proper proportion, so that the oil sludge has the effect of lower cost compared with the prior art that the diatomite is completely adopted for adsorption. In addition, compared with the prior art, the content of the sludge in the purified super-essential oil can be reduced from original 3.5 permillage to 0.015 permillage-0.020 permillage, and the super-essential oil has higher quality and better purification effect. The high-pressure compacted slag blocks are easier to fall off the filter screen 62 and are easier to collect, and the recovery rate of super-essential oil is higher than that of soft slag.
Embodiment two:
the difference between the present embodiment and the first embodiment is that in the first step, a proper amount of activated carbon powder is added into the 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 the dirty oil, the mass of the activated carbon powder added into each 300kg of dirty oil is about 1kg, and the activated carbon powder is provided with a plurality of adsorption holes, so that the ground ash particles can be adsorbed on the adsorption holes of the activated carbon through the physical adsorption effect.
The foregoing description is only of the preferred embodiments of the invention, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the invention are therefore intended to be embraced therein.
Claims (10)
1. A clean purification process of super-essential oil is characterized in that: the method comprises the following steps:
step one, preparing ash grinding oil liquid: introducing dirty oil with oil sludge in a dirty oil tank (1) into a stirring kettle (2), adding grinding ash into the stirring kettle (2) and stirring, wherein the grinding ash is filter residues consisting of grinding wheel ash, scrap iron and a small amount of particles with magnetic scraps, and the mass ratio of the grinding ash to the dirty oil is 1:8-1:15, so as to prepare grinding ash oil liquid uniformly mixed with the grinding ash;
step two, mixing: introducing dirty oil with oil sludge in a dirty oil tank (1) and the ash grinding oil prepared in the first step into a mixing tank (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 purification: and (3) introducing diatomite into the purification and filtration device, paving the diatomite on a filter screen (62), and introducing the mixed oil 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, wherein the fatlute in the mixed oil is adsorbed on diatomite and grinding ash, a filter screen (62) filters mixed slag formed by the diatomite and the grinding ash to generate super-essential oil, and the super-essential oil after adsorption purification flows into an oil collecting tank (8);
step four, high-pressure fine filtration: covering a sealing cover (64) on a filter screen (62), forming a pressurizing cavity between the sealing cover (64) and the filter screen (62), pressurizing the pressurizing cavity by a pressurizing device, compacting mixed slag formed by soft diatomite and grinding ash into a slag block, and separating super-essential oil attached to the mixed slag from the mixed slag under high pressure and flowing the super-essential oil into an oil collecting tank (8);
step five, discharging the waste residue blocks: the sealing cover (64) is reset, the filter screen (62) rotates, and the waste slag blocks on the filter screen (62) are separated from the filter screen (62) under the self gravity.
2. The process for clean purification of super-essential oil according to claim 1, wherein the process comprises the following steps: stirring is carried out for 1 time every 5min in the stirring kettle (2) in the first step, and the stirring time is set to be 1min each time.
3. The process for clean purification of super-essential oil according to claim 1, wherein the process comprises the following steps: and in the third step, the mesh number of the filter screen (62) is set to 5000-6000 meshes.
4. The process for clean purification of super-essential oil according to claim 1, wherein the process comprises the following steps: in the first step, air is blown into the dirty oil tank (1) to uniformly distribute the sludge 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 process for clean purification of super-essential oil according to claim 1, wherein the process comprises the following steps: and step four, the pressurizing device pressurizes the pressurizing cavity to 1.5-2.5Mpa for 1-2min.
6. The process for clean purification of super-essential oil according to claim 1, wherein the process comprises the following steps: and (3) after the steps one to three are circulated for a plurality of times, carrying out high-pressure filtration on the mixed slag on the filter screen (62) subjected to repeated adsorption purification in the step four, and finally separating the waste slag blocks from the filter screen (62) in the step five.
7. A treatment device for the clean purification of the superessential oil according to any of claims 1-6, characterized in that: comprises a dirty oil tank (1), a stirring kettle (2), a mixing tank (3), a purifying and filtering device and a diatomite tank (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, and a material conveying component is arranged between the mixing tank (3) and the purifying and filtering device;
the purifying and filtering device comprises a transmission mechanism, wherein the transmission mechanism comprises a plurality of driving rollers (61) and a filter screen (62) sleeved on the driving rollers (61), and the driving 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 tank (8) is arranged in the purifying and filtering device, and the oil collecting tank (8) is correspondingly arranged below the filter screen (62).
8. The treatment device for clean purification of super-essential oil according to claim 7, wherein: the driving mechanism comprises a driving motor (63), a driving wheel (631) is arranged on an output shaft of the driving motor (63), a driven wheel (612) is coaxially and fixedly arranged on the driving roller (61), and the driving wheel (631) is in transmission fit with the driven wheel (612) through a belt (632).
9. The treatment device for clean purification of super-essential oil according to claim 7, wherein: the sewage oil tank (1) is provided with a blowing device, the sewage oil tank (1) is provided with a mounting frame (11), the blowing device comprises a first air pump (12) and a blowing pipeline (13) connected to the first air pump (12), the blowing pipeline (13) is fixed on the mounting frame (11), and an air outlet end of the blowing pipeline (13) extends into the sewage oil tank (1).
10. The treatment device for clean purification of super-essential oil according to claim 7, wherein: the purification and filtration device is internally provided with a support frame (67), the support frame (67) is arranged between the filter screens (62), and when the sealing cover (64) is pressed down on the filter screens (62), the support frame (67) is in butt fit with the sealing cover (64).
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