CN101805668A - Production process of oil and grease dewaxing - Google Patents
Production process of oil and grease dewaxing Download PDFInfo
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- CN101805668A CN101805668A CN 201010141077 CN201010141077A CN101805668A CN 101805668 A CN101805668 A CN 101805668A CN 201010141077 CN201010141077 CN 201010141077 CN 201010141077 A CN201010141077 A CN 201010141077A CN 101805668 A CN101805668 A CN 101805668A
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Abstract
The invention relates to a production process of oil and grease dewaxing, which mainly comprises the following steps: using pressure formed by an oilless air compressor for forming pressure difference on the whole equipment; and promoting the oil and grease to be filtered out through a plate frame. The damage rate of crystals in the conveyance process is far smaller than that of the oil pump conveyance. The damage rate of the crystals conveyed through air compression is about 30 percent, and the damage rate of the oil pump conveyance is more than 90 percent.
Description
Technical field
The present invention relates to a kind of production technique of oil and grease dewaxing.
Background technology
Oil and grease dewaxing is the conventional process in the oils production process, and the main effect of dewaxing is higher fatty acid and the high fatty alcohol of removing in the oil, and is wherein maximum with high fatty alcohol content.The factor that influences dewaxing technique mainly contains several aspects: a. grease temperature and rate of cooling, and b. grease crystallization time, c. grease stirring velocity, the d. grease is carried and separate mode, the greasy quality of e..
Usually in the grease dewaxing technique, the filtering mode of grease is to adopt the motor high speed rotating of oil pump, grease is transported in the flame filter press, forms filtering under pressure, carry out the effect of solid-liquid separation, but in the grease course of conveying, unfavorable factor has 2 points: the first, and when regulating the pressure backflow, the grease temperature is raise, exceed the crystalline temperature, cause oil can't separate with wax coexistence liquid state.The second, in the high speed rotating process of pump, the xln of wax is formed tiny particle by broken ring, in filtration procedure, is easy to see through filter cloth or filter paper, makes the dewaxing failure.The wax phenomenon appears leaking.Be mixed together out with oil.The quality of oil is reduced, cause crystallization again to be filtered.
Summary of the invention
The objective of the invention is to filter in the dewaxing process thereby reach in order to promote that wax xln not exclusively broken ring in course of conveying falls in the grease, the wax xln filters out fully, separates fully with grease.
Want wax is separated from grease fully, must guarantee that xln destruction ratio reduces.The production technique of oil and grease dewaxing of the present invention mainly is the pressure that forms by oilless air compressor, forms pressure difference in entire equipment, impels grease to come out by Plate Filtration.Xln destruction ratio in course of conveying is far smaller than the ratio of utilizing oil pump to carry.Utilizing the xln destruction ratio of the conveying of pneumatics is about 30%, and the destruction ratio of the conveying of usefulness oil pump is more than 90%.
Concrete processing step of the present invention is as follows:
The first step: pressed oil material loading
At first, reserve the material loading amount, will be with the dewaxing grease to inject surge tank earlier, observe the liquid level of surge tank, how prevented in the surge tank on the oil, cause oil from surge tank, to overflow; After material loading is finished, close feeding pump and material loading valve;
Second step: add flocculating aids
Surge tank begins to stir, and adds flocculating aids in surge tank, and back oil-feed in the winterization jar stirs;
The 3rd step: refrigeration crystallization
In the winterization jar, open the fuel charging valve door switch of winterization jar during oil-feed, open feeding pump, begin oil-feed, observe the fluid position in the surge tank during oil-feed, prevent oil pump idle running, burn-down of electric motor by the material loading pipeline; After oil-feed finishes, close the switch and the oil-feed valve of feeding pump, the oil in the winterization jar begins to refrigerate crystallization; Crystallization is more than 12 hours, and refrigerating temperature is 5-10 ℃ and dewaxes;
The 4th step: filter dewaxing
Open the delivery valve of this winterization jar, jar interior other each valve and a manhole are closed tight; Open oilless air compressor and in jar, feed pressurized air, jar interior pressure is slowly risen by pressure line; On the fuel-displaced pipeline stand-by pump is set, uses when going wrong in order to air compressor machine; Oil after the crystallization flows out from delivery valve, enters flame filter press, observes fuel-displaced situation of flame filter press oil duct and pressure condition, just initiation pressure is not too big, impels filter cloth or filter paper to form filter membrane, and pressure too conference makes filter effect bad, cause wax to overflow, reduced greasy quality; Along with cere progressive additive and the fuel-displaced reduction of oil duct, pressure is along with increase, but can not surpass 0.25Mpa, and concrete pressure bears degree of pressure according to flame filter press and decides size; After oil in the hold-up vessel filters and finishes, continue to filter the oil in the next storage tank, good record filters based on the material loading of record in proper order, and the situation very fast to filtration velocity will have the special messenger to keep an eye on;
The 5th step: drain the oil
Corrected oil after the filtration enters in the processed oil storage tank, and underproof oil returns in the winterization jar again; After treating to deposit about 1/2 in the processed oil storage tank, begin to drain the oil, the oil after advancing in the bucket necessarily posts label, annotates a name still number, the name of an article, and lot number, date, and teams and groups, in bucket, feed nitrogen simultaneously, prevent that peroxide value from raising; When putting outside oil product is placed on, must be neat; Shallow for color depth, content, the different oil product of acid number must SD Chu, and other puts, and performs record simultaneously.
The invention has the beneficial effects as follows: the pressure by oilless air compressor forms, form pressure difference in entire equipment, impel grease to come out by Plate Filtration, xln destruction ratio in course of conveying is far smaller than the ratio of utilizing oil pump to carry.
Description of drawings
Fig. 1 is a processing unit systematic schematic diagram of the present invention.
Among the figure: 1. winterization jar, 2. material loading pipeline, 3. stand-by pump, 4. flame filter press, 5. corrected oil tube for entering can line, 6. storage tank, 7. slops tube for entering can line, 8. lead line, 9. oilless air compressor, 10. pressure line, 11. refrigeration systems, 12. salt water tanks, 13. chilled brine pipelines.
Embodiment
As shown in Figure 1, this implementation of processes mode is:
The first step: pressed oil material loading
At first, reserve the material loading amount, generally be decided to be 4 barrels-5 barrels (190Kg/ buckets), how the liquid level of good material loading switch of material loading staff and surge tank has prevented in the surge tank on the oil, causes oil to overflow from jar.
After material loading is finished, close feeding pump and material loading valve.
Second step: add flocculating aids
Surge tank begins to stir, and adds the 3kg flocculating aids in surge tank, after about 5 minutes, and can oil-feed in the winterization jar.
The 3rd step: refrigeration crystallization
A. in the material loading surge tank, when flocculating aids stirs. can oil-feed in the winterization jar.
B. open the fuel charging valve door switch of winterization jar during material loading,
C. open feeding pump, the fluid position in the surge tank is observed in the beginning oil-feed during oil-feed, prevent oil pump idle running, burn-down of electric motor.
D. after oil-feed finishes, close the switch and the oil-feed valve of feeding pump, the oil in the winterization jar begins to refrigerate crystallization.Necessary 12 hours of crystallization, refrigerating temperature is 5-10 ℃ and dewaxes.
The 4th step: filter dewaxing
Treated the interior oil cooling Tibetan of winterization jar 12 hours, refrigerating temperature is 5-10 ℃ and dewaxes, and opens the delivery valve of this winterization jar, and jar interior other each valve and a manhole are closed tight.Open oilless air compressor and in jar, feed pressurized air, jar interior pressure is slowly risen by pressure line.On the fuel-displaced pipeline stand-by pump is set, uses when going wrong in order to air compressor machine.
Oil after the crystallization flows out from delivery valve, enters flame filter press, observes fuel-displaced situation of flame filter press oil duct and pressure condition, just initiation pressure is not too big, impels filter cloth or filter paper to form filter membrane, and pressure too conference makes filter effect bad, cause wax to overflow, reduced greasy quality.
Along with cere progressive additive and the fuel-displaced reduction of oil duct, pressure is along with increase, but can not surpass 0.25Mpa, and concrete pressure bears degree of pressure according to flame filter press and decides size.After oil in the hold-up vessel filters and finishes, continue to filter the oil in the next storage tank, good record filters based on the material loading of record in proper order, and the situation very fast to filtration velocity will have the special messenger to keep an eye on.
The 5th step: drain the oil
Corrected oil after the filtration enters in the processed oil storage tank, and underproof oil returns in the winterization jar again.Treat to deposit in the processed oil storage tank about 2 barrels of oil backs (this storage tank is deposited 4 barrels of oil at most), can drain the oil, the oil after advancing in the bucket necessarily posts label, annotates a name still number, the name of an article, and lot number, date, and teams and groups, in bucket, feed nitrogen simultaneously, prevent that peroxide value from raising.
When putting outside oil product is placed on, must be neat.Shallow for color depth, content, the different oil product of acid number must SD Chu, and other puts, and performs record simultaneously.
The present invention is not limited to the foregoing description, and protection scope of the present invention is all classified in any equivalent concepts or change in the technical scope that the present invention discloses as.
Claims (1)
1. the production technique of an oil and grease dewaxing, its concrete processing step is as follows:
The first step: pressed oil material loading
At first, reserve the material loading amount, will be with the dewaxing grease to inject surge tank earlier, observe the liquid level of surge tank, how prevented in the surge tank on the oil, cause oil from surge tank, to overflow; After material loading is finished, close feeding pump and material loading valve;
Second step: add flocculating aids
Surge tank begins to stir, and adds flocculating aids in surge tank, and back oil-feed in the winterization jar stirs;
The 3rd step: refrigeration crystallization
Open the fuel charging valve door switch of winterization jar during oil-feed in the winterization jar, open feeding pump, the fluid position in the surge tank is observed in the beginning oil-feed during oil-feed, prevent oil pump idle running, burn-down of electric motor; After oil-feed finishes, close the switch and the oil-feed valve of feeding pump, the oil in the winterization jar begins to refrigerate crystallization; Crystallization is more than 12 hours, and refrigerating temperature is 5-10 ℃ and dewaxes;
The 4th step: filter dewaxing
Open the delivery valve of this winterization jar, jar interior other each valve and a manhole are closed tight; Open oilless air compressor and in jar, feed pressurized air, jar interior pressure is slowly risen by pressure line; On the fuel-displaced pipeline stand-by pump is set, uses when going wrong in order to air compressor machine; Oil after the crystallization flows out from delivery valve, enters flame filter press, observes fuel-displaced situation of flame filter press oil duct and pressure condition, just initiation pressure is not too big, impels filter cloth or filter paper to form filter membrane, and pressure too conference makes filter effect bad, cause wax to overflow, reduced greasy quality; Along with cere progressive additive and the fuel-displaced reduction of oil duct, pressure is along with increase, but can not surpass 0.25Mpa, and concrete pressure bears degree of pressure according to flame filter press and decides size; After oil in the hold-up vessel filters and finishes, continue to filter the oil in the next storage tank, good record filters based on the material loading of record in proper order, and the situation very fast to filtration velocity will have the special messenger to keep an eye on;
The 5th step: drain the oil
Corrected oil after the filtration enters in the processed oil storage tank, and underproof oil returns in the winterization jar again; After treating to deposit about 1/2 in the processed oil storage tank, begin to drain the oil, the oil after advancing in the bucket necessarily posts label, annotates a name still number, the name of an article, and lot number, date, and teams and groups, in bucket, feed nitrogen simultaneously, prevent that peroxide value from raising; When putting outside oil product is placed on, must be neat; Shallow for color depth, content, the different oil product of acid number must SD Chu, and other puts, and performs record simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201010141077 CN101805668A (en) | 2010-04-07 | 2010-04-07 | Production process of oil and grease dewaxing |
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| CN 201010141077 CN101805668A (en) | 2010-04-07 | 2010-04-07 | Production process of oil and grease dewaxing |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102225268A (en) * | 2011-03-17 | 2011-10-26 | 朱文鑫 | Cleaning device and method for grease de-waxing filter cloth |
| CN102433220A (en) * | 2011-10-31 | 2012-05-02 | 郑州远洋油脂工程技术有限公司 | Oil dewaxing process and device |
| CN103555418A (en) * | 2013-11-07 | 2014-02-05 | 河南懿丰油脂有限公司 | Method for improving transparency of edible oil |
| CN103589508A (en) * | 2012-08-13 | 2014-02-19 | 李宁 | Environment-friendly type filter process for edible oil |
| CN106701314A (en) * | 2017-02-17 | 2017-05-24 | 无锡市新耀生物工程技术有限公司 | Fish oil winterizing, fractioning, crystallizing and growing reaction tank |
| CN108219923A (en) * | 2016-12-13 | 2018-06-29 | 王仙 | A kind of corn oil dewaxing technique |
| CN109234019A (en) * | 2018-11-14 | 2019-01-18 | 陈同翔 | A kind of edible fat production technique process for dewaxing |
| CN109825366A (en) * | 2019-03-11 | 2019-05-31 | 嘉必优生物技术（武汉）股份有限公司 | Winterization grease removal equipment and winterization grease removal method |
| CN110094637A (en) * | 2018-01-31 | 2019-08-06 | 中国石油天然气股份有限公司 | Circulation paraffin removal device |
| CN110484009A (en) * | 2019-09-05 | 2019-11-22 | 黄河三角洲京博化工研究院有限公司 | No. 110 bi tumenf orr oads of one kind and preparation method thereof |
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| CN101480206A (en) * | 2009-02-10 | 2009-07-15 | 湖南巴陵油脂有限公司 | Technique for rapidly dewaxing rape oil |
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| CN101480206A (en) * | 2009-02-10 | 2009-07-15 | 湖南巴陵油脂有限公司 | Technique for rapidly dewaxing rape oil |
| CN101530139A (en) * | 2009-04-17 | 2009-09-16 | 江苏牧羊迈安德食品机械有限公司 | Process for refining rice bran oil by using crude rice bran oil |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102225268A (en) * | 2011-03-17 | 2011-10-26 | 朱文鑫 | Cleaning device and method for grease de-waxing filter cloth |
| CN102225268B (en) * | 2011-03-17 | 2013-05-15 | 朱文鑫 | Cleaning device and method for grease de-waxing filter cloth |
| CN102433220A (en) * | 2011-10-31 | 2012-05-02 | 郑州远洋油脂工程技术有限公司 | Oil dewaxing process and device |
| CN103589508A (en) * | 2012-08-13 | 2014-02-19 | 李宁 | Environment-friendly type filter process for edible oil |
| CN103555418A (en) * | 2013-11-07 | 2014-02-05 | 河南懿丰油脂有限公司 | Method for improving transparency of edible oil |
| CN108219923A (en) * | 2016-12-13 | 2018-06-29 | 王仙 | A kind of corn oil dewaxing technique |
| CN106701314A (en) * | 2017-02-17 | 2017-05-24 | 无锡市新耀生物工程技术有限公司 | Fish oil winterizing, fractioning, crystallizing and growing reaction tank |
| CN106701314B (en) * | 2017-02-17 | 2023-10-27 | 无锡市新耀生物工程技术有限公司 | Crystal growing reaction tank for winterization, fractionation and crystallization of fish oil |
| CN110094637A (en) * | 2018-01-31 | 2019-08-06 | 中国石油天然气股份有限公司 | Circulation paraffin removal device |
| CN109234019A (en) * | 2018-11-14 | 2019-01-18 | 陈同翔 | A kind of edible fat production technique process for dewaxing |
| CN109825366A (en) * | 2019-03-11 | 2019-05-31 | 嘉必优生物技术（武汉）股份有限公司 | Winterization grease removal equipment and winterization grease removal method |
| CN110484009A (en) * | 2019-09-05 | 2019-11-22 | 黄河三角洲京博化工研究院有限公司 | No. 110 bi tumenf orr oads of one kind and preparation method thereof |
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Application publication date: 20100818 |