CN101113384A - Aluminium rolling oil distillation process - Google Patents
Aluminium rolling oil distillation process Download PDFInfo
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- CN101113384A CN101113384A CNA2007100439339A CN200710043933A CN101113384A CN 101113384 A CN101113384 A CN 101113384A CN A2007100439339 A CNA2007100439339 A CN A2007100439339A CN 200710043933 A CN200710043933 A CN 200710043933A CN 101113384 A CN101113384 A CN 101113384A
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Abstract
The invention aims at solving the problems of larger energy consumption when treating unit oil, peculiar smell of distilled oil, low recovery rate that exist in the existing regeneration technique for rolling oil on aluminum materials, providing a distillation technique of rolling oil on aluminum materials. The technique comprises five procedures of oil supply, distillation, and circumfluence, discharge of finished oil and discharge of waste oil. The physical and chemical properties of the rolling oil on aluminum materials after distillation are made to be close to the physical and chemical property indexes of newly purchased rolling oil on aluminum materials by accurately controlling the flux of the oil supply and the flux of circumfluence, heating temperature and vacuum degree in the technique, so as to fully meet the oil demand in the rolling technique. The unit energy consumption when treating the waste oil is relatively lower and the unit energy consumption when is converted into electric energy is less than 0.25kwh.L-1. The rolling oil on aluminum materials after treatment is clear and transparent and has no peculiar smell, and the recovery rate is relatively higher, up to 96 percent or more.
Description
Technical field
The present invention relates to a kind of rectification process, specifically, relate to a kind of aluminium rolling oil distillation process, belong to aluminium sheet, band, paper tinsel processing technique field.
Background technology
Adopt the ROLLING OIL that recycles to cool off and lubricate roll and roll material in aluminium sheet, band, the paper tinsel course of processing, ROLLING OIL is as the main auxilliary material of aluminium sheet, band, paper tinsel rolling line, and its quality and purity directly influence the surface quality of plate, band, foil.The characteristic of ROLLING OIL is that (40 ℃ kinematic viscosity is 1.6～2.2 * 10 to low viscosity
-6m
2/ s), narrow boiling range (200 ℃～250 ℃), it mainly consists of the alkane between C9～C18, and minor amounts of additives.Because (aluminum cold-rolling oil is called heavy oil to various mechanical means relatively with oil in the operation of rolling, as hydraulic efficiency oil, gear lubrication wet goods) leak into inevitably in the round-robin aluminum cold-rolling oil system, thereby the increase of heavy oil content, viscosity and boiling range in the aluminum cold-rolling oil are raise, consequently these heavy oil will can't be removed in the subsequent anneal technology of plate, band, paper tinsel, it is trapped in material surface and forms surface imperfection such as macula lutea, foxiness, has reduced product surface quality.
At present both at home and abroad mostly heavy oil removal method in the aluminum cold-rolling oil is to utilize the different of aluminum cold-rolling oil and heavy oil boiling point, distillation technology carries out the separation of two components in the employing chemical industry, but because the characteristic of the narrow boiling range of aluminum cold-rolling oil, and contain various additive compositions in the aluminum cold-rolling oil, so the design of operational path, operating parameters and monomer components and parts and type selecting will directly influence quality, working cost and the regular job management maintenance of aluminum cold-rolling oil after the rectifying.
External A Shen Bach company (Achenbach) aluminum cold-rolling oil reclaiming process is: the aluminum cold-rolling oil that will need manipulation of regeneration, filter earlier, pump into the sump oil case then, pass the distillation system of continuous operation afterwards, enter product tank as pure distillment at last, by the pumped back aluminum cold-rolling oil recycle system, the distillation remnant is collected in the waste oil holding tank, is drained by scavenge oil pump then.The aluminum cold-rolling oil reclaiming process of the domestic Luoyang logical equipment company limited of gold of coloured institute is: the aluminum cold-rolling oil that will need manipulation of regeneration, filter earlier, pump into after the rectifying tower by pump then, under vacuum condition, by circulation heating to oil at the bottom of the tower, realize underpressure distillation, reclaim the waste oil discharging of high boiling range after making the aluminum cold-rolling oil evaporation, condensation of low boiling range.The key technical indexes of existing domestic and international aluminum cold-rolling oil reclaiming process is shown in Table 1:
Table 1 is the key technical indexes of aluminum cold-rolling oil reclaiming process both at home and abroad
| Business Name | DEMAG company | ACHENBACH company | Luoyang Jin Tong company of coloured institute |
| Operation scheme | On-line | On-line | On-line |
| Type of heating | Thermal oil | Steam | Steam |
| The ROLLING OIL initial boiling point/℃ | ≥200 | ≥202 | ≥205 |
| The ROLLING OIL final boiling point/℃ | ≤280 | ≤280 | ≤280 |
| Operating temperature/℃ | ≤160 | ≤145 | ≤143 |
| The boiling range rate of recovery/% | 85 | 90 | 93 |
| Unit consumption of energy/kwhL -1 | 0.48 | 0.33 | 0.35 |
| Regeneration back ROLLING OIL peculiar smell | Have | Have | Have |
In sum, the energy consumption that existing aluminum cold-rolling oil reclaiming process is handled the unit oil product is bigger, and the oil product after the rectifying has peculiar smell, and the rate of recovery is lower.
Summary of the invention
The objective of the invention is at above-mentioned existing in prior technology defective, a kind of aluminium rolling oil distillation process is provided, make after the processing aluminum cold-rolling oil not only physicochemical property meet the demands, and it is lower to handle the power consumption of unit sump oil, aluminum cold-rolling oil free from extraneous odour after the rectifying, organic efficiency is higher.
For achieving the above object, the present invention is achieved by the following technical programs:
Aluminium rolling oil distillation process of the present invention comprises fuel feeding, rectifying, backflow, processed oil discharging and five processes of waste oil discharging, and the concrete operations technology of each process is as follows:
1. fuel feeding process
Sump oil enters distillation system by sump oil inlet, remove solid particulate through filter after, enter rectifying tower by rectifying tower sump oil inlet after taking into account the tubular heat exchange heat exchange by motor-driven control valve, sump oil flow, finish the fuel feeding process.Wherein motor-driven control valve and sump oil under meter are formed close loop control circuit, accurately control the flow of fuel feeding, and control accuracy is in ± 3%.
2. rectifying
Sump oil is finished sepn process in rectifying tower, heavy constituent partly fall at the bottom of the tower in the sump oil, and the aluminum cold-rolling oil in the sump oil is vaporized, the aluminum cold-rolling oil of steam state is discharged by rectifying tower ROLLING OIL vapor outlet, through tubular heat exchange heat exchange and pipe bundle condenser condensation, condensed liquid aluminium ROLLING OIL and part noncondensable gas enter vapour liquid separator and carry out vapor-liquid separation, and the liquid aluminium ROLLING OIL after the separation is entered in the finished product jar by outlet of vapour liquid separator liquid phase and finished product jar ROLLING OIL inlet.
3. reflux course
For guaranteeing the purity of rectifying tower steam state component, the part aluminum cold-rolling oil successive in the finished product jar is sent back in the rectifying tower by the outlet of finished product jar phegma, backflow frequency conversion toothed gear pump and rectifying tower reflux inlet, finishes the technology reflux course.Wherein reflux frequency conversion toothed gear pump and return flow meter formed close loop control circuit, accurately controls the withdrawing oil flow, and control accuracy is in ± 3%.
4. processed oil discharge process
Reach the high liquid level of setting when finished product jar liquidometer after, finished product toothed gear pump and processed oil coaxial electrical magnet valve are opened, purified aluminum cold-rolling oil is discharged distillation system by the outlet of finished product jar ROLLING OIL, finished product toothed gear pump, processed oil coaxial electrical magnet valve and export of finished oil in the finished product jar, drop to the low liquid level of setting when finished product jar liquidometer after, the coaxial closed electromagnetic valve of finished product toothed gear pump and processed oil, thus one-pass finished oil discharge process finished.
5. waste oil discharge process
After the rectifying tower liquidometer of rectifying tower bottom reaches the high liquid level of setting, waste oil coaxial electrical magnet valve is opened, part round-robin waste oil exports the discharge system by waste oil after the cooling of waste oil water cooler, drop to the low liquid level of setting when the rectifying tower liquidometer after, the coaxial closed electromagnetic valve of waste oil, thus the waste oil discharge process finished one time.
Heat required in the above-mentioned technological process is provided by electric heater, and the aluminum cold-rolling oil successive of rectifier bottoms is recycled impeller pump by the outlet of rectifying tower circulation fluid and extracts out, is returned in the rectifying tower by rectifying tower circulation fluid inlet after the electric heater heating.Pipeline before the rectifying tower circulation fluid inlet is provided with the circulation fluid temperature measuring instrument, carry out continuous monitoring and return the aluminum cold-rolling oil temperature of rectifying tower, and form close loop control circuit with electric heater, accurately the Heating temperature of Control Circulation aluminum cold-rolling oil is no more than 130 ℃, and control accuracy is in ± 1 ℃.
The vaporescence of aluminum cold-rolling oil is to finish under certain vacuum environment in the above-mentioned technological process, the required vacuum environment of rectifying tower is provided by vacuum pump, rectifying tower is communicated with vacuum pump by tubular heat exchange, pipe bundle condenser, vapour liquid separator, vacuum cooler-condenser, the vacuum pump continuous air extraction guarantees that the interior vacuum tightness of vacuum pipe is less than 280Pa; Be located at the vacuum tightness in the vacuumometer continuously measured vacuum-lines on the vacuum-lines, and form close loop control circuit with vacuum breaker, accurately control vacuum tightness, control accuracy is in ± 50Pa.
Heat-eliminating medium in the above-mentioned technological process is a recirculated cooling water, vacuum cooler-condenser, pipe bundle condenser, the waste oil water cooler of water coolant need be provided, be composed in series cooling line successively by the recirculated cooling water pipeline, continuous cooling water is entered by the recirculated cooling water inlet, pass through vacuum cooler-condenser, pipe bundle condenser and waste oil water cooler one by one, discharge by the recirculated cooling water outlet.
Above-mentioned technology is provided with vacuum cooler-condenser before vacuum pump, the outlet of vacuum cooler-condenser raffinate is connected with finished product jar raffinate inlet by oil line pipe, and a spot of raffinate can be recovered in the finished product jar, can prevent the discharge of small amount of aluminum ROLLING OIL vapour, improves the rate of recovery.
Compared with prior art, beneficial effect of the present invention is:
1) the aluminum cold-rolling oil physicochemical property after aluminium rolling oil distillation process rectifying of the present invention satisfies the oily requirement of using of rolling technology fully near the physical and chemical index of newly purchasing aluminum cold-rolling oil.
2) unit consumption of energy of processing sump oil is relatively low, and the unit consumption of energy of amounting to into electric energy is less than 0.25kwhL
-1
3) as clear as crystal, the free from extraneous odour of aluminum cold-rolling oil after the processing.
4) organic efficiency is higher relatively, reaches more than 96%.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Among the figure: 11-sump oil inlet; The 12-oil line pipe; The 13-strainer; The 14-motor-driven control valve; 15-sump oil under meter; 16-tubular heat exchange sump oil inlet; The outlet of 17-tubular heat exchange sump oil; 18-rectifying tower sump oil inlet; The 21-rectifying tower; 22-rectifying tower ROLLING OIL vapor outlet; The 23-tubular heat exchange; 24-pipe bundle condenser ROLLING OIL vapour inlet; The 25-pipe bundle condenser; 26-vapour liquid separator inlet; The 27-vapour liquid separator; The outlet of 28-vapour liquid separator liquid phase; 29-finished product jar ROLLING OIL inlet; The outlet of 31-finished product jar phegma; 32-backflow frequency conversion toothed gear pump; 33-return flow meter; 34-rectifying tower reflux inlet; The outlet of 41-vacuum cooler-condenser raffinate; 42-finished product jar raffinate inlet; 43-finished product jar; 44-finished product jar liquidometer; The outlet of 45-finished product jar ROLLING OIL; 46-finished product toothed gear pump; 47-processed oil coaxial electrical magnet valve; The 48-export of finished oil; 51-rectifying tower liquidometer; 52-waste oil water cooler inlet; 53-waste oil water cooler; 54-waste oil cooler outlet; 55-waste oil coaxial electrical magnet valve; The outlet of 56-waste oil; The outlet of 61-rectifying tower circulation fluid; 62-circular centrifugal pump; 63-electric heater inlet; The 64-electric heater; The outlet of 65-electric heater; 66-circulation fluid temperature measuring instrument; 67-rectifying tower circulation fluid inlet; 71-vapour liquid separator vapor phase exit; The 72-vacuum pipe; 73-vacuum cooler-condenser inlet; The 74-vacuum cooler-condenser; The outlet of 75-vacuum cooler-condenser; The 76-vacuumometer; The 77-vacuum breaker; The 78-vacuum pump; 79-vacuum pump air outlet; 81-recirculated cooling water inlet; 82-recirculated cooling water pipeline; 83-vacuum cooler-condenser cooling water inlet; 84-vacuum cooler-condenser cooling water outlet; 85-pipe bundle condenser cooling water inlet; 86-pipe bundle condenser cooling water outlet; 87-waste oil water cooler cooling water inlet; 88-waste oil water cooler cooling water outlet; The outlet of 89-recirculated cooling water.
Embodiment
The invention will be further described below in conjunction with drawings and Examples, and its purpose only is better to understand content of the present invention and unrestricted protection scope of the present invention:
As shown in Figure 1, aluminium rolling oil distillation process of the present invention comprises fuel feeding, rectifying, backflow, processed oil discharging and five processes of waste oil discharging, and the concrete operations technology of each process is as follows:
1. fuel feeding process
Sump oil enters distillation system by sump oil inlet 11 by oil line pipe 12, after removing solid particulate through filter 13 earlier, by motor-driven control valve 14, sump oil under meter 15, enter tubular heat exchange 23 heat exchange by tubular heat exchange sump oil inlet 16, sump oil after the heat exchange is flowed out by tubular heat exchange sump oil outlet 17, enter rectifying tower 21 by rectifying tower sump oil inlet 18, finish the fuel feeding process.Wherein motor-driven control valve 14 is formed close loop control circuit with sump oil under meter 15, accurately controls the flow of fuel feeding, and control accuracy is in ± 3%.
2. rectifying
Sump oil is finished sepn process in rectifying tower 21, wherein heavy oil partly falls at the bottom of the tower in the sump oil, aluminum cold-rolling oil in the sump oil is vaporized, the aluminum cold-rolling oil of steam state is discharged by rectifying tower ROLLING OIL vapor outlet 22, through tubular heat exchange 23 heat exchange, steam state aluminum cold-rolling oil after the heat exchange enters pipe bundle condenser 25 condensations by pipe bundle condenser ROLLING OIL vapour inlet 24, enter vapour liquid separator 27 through condensed liquid aluminium ROLLING OIL and part noncondensable gas by vapour liquid separator inlet 26 and carry out vapor-liquid separation, the liquid aluminium ROLLING OIL after separating is entered in the finished product jar 43 by outlet 28 of vapour liquid separator liquid phase and finished product jar ROLLING OIL inlet 29.
3. reflux course
For guaranteeing the purity of rectifying tower steam state component, the part aluminum cold-rolling oil successive in the finished product jar 43 is sent back in the rectifying tower 21 by finished product jar phegma outlet 31, backflow frequency conversion toothed gear pump 32 and rectifying tower reflux inlet 34, finishes the technology reflux course.The frequency conversion toothed gear pump 32 that wherein refluxes is formed close loop control circuit with return flow meter 33, accurately controls the withdrawing oil flow, and control accuracy is in ± 3%.
4. processed oil discharge process
Reach the high liquid level of setting when finished product jar liquidometer 44 after, finished product toothed gear pump 46 and processed oil coaxial electrical magnet valve 47 are opened, purified aluminum cold-rolling oil is discharged distillation system by finished product jar ROLLING OIL outlet 45, finished product toothed gear pump 46, processed oil coaxial electrical magnet valve 47 and export of finished oil 48 in the finished product jar 43, reduce to the low liquid level of setting when finished product jar liquidometer 44 after, finished product toothed gear pump 46 and processed oil coaxial electrical magnet valve 47 are closed, thereby finish one-pass finished oil discharge process.
5. waste oil discharge process
After the rectifying tower liquidometer 51 of rectifying tower bottom reaches the high liquid level of setting, waste oil coaxial electrical magnet valve 55 is opened, part round-robin waste oil enters 53 coolings of waste oil water cooler through waste oil water cooler inlet 52, flow out by waste oil cooler outlet 54 through cooled waste oil, export 56 discharge systems by waste oil at last, reduce to the low liquid level of setting when rectifying tower liquidometer 51 after, waste oil coaxial electrical magnet valve 55 is closed, thereby finishes the waste oil discharge process one time.
Heat required in the above-mentioned technological process is provided by electric heater 64, the aluminum cold-rolling oil successive of rectifier bottoms is recycled impeller pump 62 by rectifying tower circulation fluid outlet 61 and extracts out by electric heater inlet 63 and enter electric heater 64, flows into the rectifying tower circulation fluids through electric heater 64 heating backs by electric heater outlet 65 and enters the mouth 67 and return in the rectifying tower 21.Pipeline before the rectifying tower circulation fluid inlet 67 is provided with circulation fluid temperature measuring instrument 66, carry out continuous monitoring and return the aluminum cold-rolling oil temperature of rectifying tower, and form close loop control circuits with electric heater 64, accurately the Heating temperature of Control Circulation aluminum cold-rolling oil is no more than 130 ℃, and control accuracy is in ± 1 ℃.
The vaporescence of aluminum cold-rolling oil is to finish under certain vacuum environment in the above-mentioned technological process, the required vacuum environment of rectifying tower is provided by vacuum pump 78, the aluminum cold-rolling oil of steam state is discharged by rectifying tower ROLLING OIL vapor outlet 22, through tubular heat exchange 23 heat exchange, steam state aluminum cold-rolling oil after the heat exchange enters pipe bundle condenser 25 condensations by pipe bundle condenser ROLLING OIL vapour inlet 24, enter vapour liquid separator 27 through condensed liquid aluminium ROLLING OIL and part noncondensable gas by vapour liquid separator inlet 26 and carry out vapor-liquid separation, vapour phase after the separation flows into vacuum cooler-condenser inlet 73 by vapour liquid separator vapor phase exit 71 by vacuum pipe 72 and enters vacuum cooler-condenser 74, through condensed gas by vacuum pipe 72 by vacuum cooler-condenser outlet 75 vacuumometer 76 of flowing through successively, vacuum breaker 77, vacuum pump 78 is discharged by vacuum pump air outlet 79 at last.Vacuum cooler-condenser 74 is communicated with vacuum pump 78, and vacuum pump 78 continuous air extractions guarantee that the interior vacuum tightness of vacuum pipe is less than 280Pa; Be located at the vacuum tightness in the vacuumometer 76 continuously measured vacuum-liness on the vacuum-lines, and form close loop control circuit with vacuum breaker, accurately control vacuum tightness, control accuracy is in ± 50Pa.
Heat-eliminating medium in the above-mentioned technological process is a recirculated cooling water, the vacuum cooler-condenser 74 of water coolant need be provided, pipe bundle condenser 25, waste oil water cooler 53, be composed in series cooling line successively by recirculated cooling water pipeline 82, continuous cooling water is entered by recirculated cooling water pipeline 82 by recirculated cooling water inlet 81, successively by vacuum cooler-condenser cooling water inlet 83, vacuum cooler-condenser cooling water outlet 84, pipe bundle condenser cooling water inlet 85, pipe bundle condenser cooling water outlet 86, waste oil water cooler cooling water inlet 87, waste oil water cooler cooling water outlet 88 is through vacuum cooler-condenser 74, pipe bundle condenser 25 and waste oil water cooler 63 are discharged by recirculated cooling water outlet 89 at last.
Above-mentioned technology is provided with vacuum cooler-condenser 74 before vacuum pump 78, the outlet 41 of vacuum cooler-condenser raffinate is connected with finished product jar raffinate inlet 42 by oil line pipe 12, a spot of raffinate can be recovered in the finished product jar 43, to prevent the discharge of small amount of aluminum ROLLING OIL vapour.
Aluminum cold-rolling oil physicochemical property after aluminium rolling oil distillation process rectifying of the present invention satisfies the oily requirement of using of rolling technology fully near the physical and chemical index of newly purchasing aluminum cold-rolling oil; The unit consumption of energy of handling sump oil is relatively low, and the unit consumption of energy of amounting to into electric energy is less than 0.25kwhL
-1As clear as crystal, the free from extraneous odour of aluminum cold-rolling oil after the processing; Organic efficiency is higher relatively, reaches more than 96%.
Embodiment 1
The aluminum cold-rolling oil of newly purchasing is injected oil circulating system, move and extract the contaminated aluminum cold-rolling oil of part after 2 months out, handle by above-mentioned aluminium rolling oil distillation process, aluminum cold-rolling oil free from extraneous odour after the processing, its physicochemical property meets the demands, the rate of recovery reaches 97.2%, and it is 0.244kwh that the energy consumption of handling every liter of aluminum cold-rolling oil is amounted to into electric energy.Aluminum cold-rolling oil physical and chemical index contrast before and after handling is shown in Table 2:
Aluminum cold-rolling oil physical and chemical index contrast before and after table 2 is handled
| Physical and chemical index | The aluminum cold-rolling oil of newly purchasing | Aluminum cold-rolling oil after contaminated | Aluminum cold-rolling oil after treatment |
| The boiling range scope/℃ | 205～250 | 219～260 | 206～251 |
| Range of viscosities (40 ℃)/* 10 -6m 2/s | 1.75 | 2.18 | 1.77 |
| Heavy oil content (massfraction)/% | Do not detect | 1.21 | Do not detect |
| Outward appearance | As clear as crystal | Faint yellow | As clear as crystal |
Embodiment 2
The aluminum cold-rolling oil of newly purchasing is injected oil circulating system, move and extract the contaminated aluminum cold-rolling oil of part after 3 months out, handle by above-mentioned aluminium rolling oil distillation process, aluminum cold-rolling oil free from extraneous odour after the processing, its physicochemical property meets the demands, the rate of recovery reaches 96.3%, and it is 0.235kwh that the energy consumption of handling every liter of aluminum cold-rolling oil is amounted to into electric energy.Aluminum cold-rolling oil physical and chemical index contrast before and after handling is shown in Table 3.
Aluminum cold-rolling oil physical and chemical index contrast before and after table 3 is handled
| Physical and chemical index | The aluminum cold-rolling oil of newly purchasing | Aluminum cold-rolling oil after contaminated | Aluminum cold-rolling oil after treatment |
| The boiling range scope/℃ | 205～250 | 225～269 | 207～249 |
| Range of viscosities (40 ℃)/* 10 -6m 2/s | 1.75 | 2.33 | 1.77 |
| Heavy oil content (massfraction)/% | Do not detect | 1.86 | 0.03 |
| Outward appearance | As clear as crystal | Pale brown look | As clear as crystal |
Claims (8)
1. an aluminium rolling oil distillation process comprises fuel feeding, rectifying, backflow, processed oil discharging and five processes of waste oil discharging, it is characterized in that the operating procedure of described each process is as follows:
1) fuel feeding process: sump oil enters distillation system by the sump oil inlet, behind filter removal solid particulate, take into account after the tubular heat exchange heat exchange by motor-driven control valve, sump oil flow and to enter rectifying tower by rectifying tower sump oil inlet, finish the fuel feeding process, wherein motor-driven control valve and sump oil under meter are formed close loop control circuit, accurately control the flow of fuel feeding;
2) rectifying: sump oil is finished sepn process in rectifying tower, heavy constituent partly fall at the bottom of the tower in the sump oil, and the aluminum cold-rolling oil in the sump oil is vaporized, the aluminum cold-rolling oil of steam state is discharged by rectifying tower ROLLING OIL vapor outlet, through tubular heat exchange heat exchange and pipe bundle condenser condensation, condensed liquid aluminium ROLLING OIL and part noncondensable gas enter vapour liquid separator and carry out vapor-liquid separation, and the liquid aluminium ROLLING OIL after the separation is entered in the finished product jar by outlet of vapour liquid separator liquid phase and finished product jar ROLLING OIL inlet;
3) reflux course: for guaranteeing the purity of rectifying tower steam state component, part aluminum cold-rolling oil successive in the finished product jar is sent back in the rectifying tower by the outlet of finished product jar phegma, backflow frequency conversion toothed gear pump and rectifying tower reflux inlet, finish the technology reflux course, wherein reflux frequency conversion toothed gear pump and return flow meter formed close loop control circuit, accurately controls the withdrawing oil flow;
4) processed oil discharge process: reach the high liquid level of setting when finished product jar liquidometer after, finished product toothed gear pump and processed oil coaxial electrical magnet valve are opened, purified aluminum cold-rolling oil is discharged distillation system by the outlet of finished product jar ROLLING OIL, finished product toothed gear pump, processed oil coaxial electrical magnet valve and export of finished oil in the finished product jar, drop to the low liquid level of setting when finished product jar liquidometer after, the coaxial closed electromagnetic valve of finished product toothed gear pump and processed oil, thus one-pass finished oil discharge process finished;
5) waste oil discharge process: after the rectifying tower liquidometer of rectifying tower bottom reaches the high liquid level of setting, waste oil coaxial electrical magnet valve is opened, part round-robin waste oil exports the discharge system by waste oil after the cooling of waste oil water cooler, drop to the low liquid level of setting when the rectifying tower liquidometer after, the coaxial closed electromagnetic valve of waste oil, thus the waste oil discharge process finished one time.
2. aluminium rolling oil distillation process according to claim 1 is characterized in that the control accuracy of described fuel supply flow rate is in ± 3%.
3. aluminium rolling oil distillation process according to claim 1 is characterized in that, the required heat of described rectifying is directly provided by electric heater.
4. aluminium rolling oil distillation process according to claim 3, it is characterized in that, described electric heater heat supplying process is as follows: the aluminum cold-rolling oil successive of rectifier bottoms is recycled impeller pump by the outlet of rectifying tower circulation fluid and extracts out, after the electric heater heating, return in the rectifying tower by rectifying tower circulation fluid inlet, pipeline before the rectifying tower circulation fluid inlet is provided with the circulation fluid temperature measuring instrument, carry out continuous monitoring and return the aluminum cold-rolling oil temperature of rectifying tower, and form close loop control circuit with electric heater, accurately the Heating temperature of Control Circulation aluminum cold-rolling oil is no more than 130 ℃.
5. aluminium rolling oil distillation process according to claim 4 is characterized in that, described heating and temperature control is at 120～129 ℃, and control accuracy is in ± 1 ℃.
6. aluminium rolling oil distillation process according to claim 1, it is characterized in that, vacuum environment in the described rectifying realizes by following process: rectifying tower is communicated with vacuum pump by tubular heat exchange, pipe bundle condenser, vapour liquid separator, vacuum cooler-condenser, the vacuum pump continuous air extraction, guarantee that the interior vacuum tightness of vacuum pipe is less than 280Pa, be located at the vacuum tightness in the vacuumometer continuously measured vacuum-lines on the vacuum-lines, and form close loop control circuit with vacuum breaker, accurately control vacuum tightness.
7. aluminium rolling oil distillation process according to claim 6 is characterized in that, described vacuum degree control is at 180～280Pa, and control accuracy is in ± 50Pa.
8. aluminium rolling oil distillation process according to claim 1 is characterized in that the control accuracy of described withdrawing oil flow is in ± 3%.
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| CNA2007100439339A CN101113384A (en) | 2007-07-18 | 2007-07-18 | Aluminium rolling oil distillation process |
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| CNA2007100439339A CN101113384A (en) | 2007-07-18 | 2007-07-18 | Aluminium rolling oil distillation process |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102847733A (en) * | 2012-08-20 | 2013-01-02 | 洛阳首龙铝业有限责任公司 | Aluminum foil vacuum low-temperature oil removing process and equipment |
| CN103396876A (en) * | 2013-07-11 | 2013-11-20 | 巩义市鑫华机械厂 | Aluminum or copper rolling oil regenerating device and method |
| CN104645778A (en) * | 2015-01-14 | 2015-05-27 | 上海方久轧制油净化技术有限公司 | Process for recycling aluminum cold rolling oil mist |
| CN104679038A (en) * | 2015-01-14 | 2015-06-03 | 上海方久轧制油净化技术有限公司 | Start-up control method for aluminum rolling oil fog recycling system |
| CN105176660A (en) * | 2015-08-28 | 2015-12-23 | 宁夏锦河能源科技有限公司 | Pretreatment refining method of waste lubricating oil |
| CN106118718A (en) * | 2016-06-23 | 2016-11-16 | 望江县大唐资源再生有限公司 | A kind of Novel waste oil regeneration utilizes device |
| CN111303932A (en) * | 2020-03-04 | 2020-06-19 | 江苏沃维斯智能工业有限公司 | Equipment and method for recycling aluminum product rolling oil |
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- 2007-07-18 CN CNA2007100439339A patent/CN101113384A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102847733A (en) * | 2012-08-20 | 2013-01-02 | 洛阳首龙铝业有限责任公司 | Aluminum foil vacuum low-temperature oil removing process and equipment |
| CN103396876A (en) * | 2013-07-11 | 2013-11-20 | 巩义市鑫华机械厂 | Aluminum or copper rolling oil regenerating device and method |
| CN104645778A (en) * | 2015-01-14 | 2015-05-27 | 上海方久轧制油净化技术有限公司 | Process for recycling aluminum cold rolling oil mist |
| CN104679038A (en) * | 2015-01-14 | 2015-06-03 | 上海方久轧制油净化技术有限公司 | Start-up control method for aluminum rolling oil fog recycling system |
| CN105176660A (en) * | 2015-08-28 | 2015-12-23 | 宁夏锦河能源科技有限公司 | Pretreatment refining method of waste lubricating oil |
| CN105176660B (en) * | 2015-08-28 | 2017-11-07 | 刘彦昌 | A kind of refined method of waste lubricating oil pretreatment |
| CN106118718A (en) * | 2016-06-23 | 2016-11-16 | 望江县大唐资源再生有限公司 | A kind of Novel waste oil regeneration utilizes device |
| CN111303932A (en) * | 2020-03-04 | 2020-06-19 | 江苏沃维斯智能工业有限公司 | Equipment and method for recycling aluminum product rolling oil |
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Owner name: CHINA NON-FERROUS METALS PROCESSING TECHNOLOGY CO. Free format text: FORMER OWNER: SHANGHAI FANGJIU ROLLING OIL PURIFICATION TECHNOLOGY TECHNOLOGY CO., LTD. Effective date: 20090731 |
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Effective date of registration: 20090731 Address after: Luoyang science and technology development department, Polytron Technologies Inc, Ministry of science and technology, postal code: 471003 Applicant after: Medium color Polytron Technologies Inc Co-applicant after: Shanghai Fangjiu Rolling Oil Purification Co., Ltd. Address before: Room 220, room 18, cooperative road, Fengcheng Town, Shanghai, Fengxian District: 201411 Applicant before: Shanghai Fangjiu Rolling Oil Purification Co., Ltd. |
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