CN106833890A - A kind of method for reducing oil-containing in vegetable oil alkali refining washing waste water - Google Patents
A kind of method for reducing oil-containing in vegetable oil alkali refining washing waste water Download PDFInfo
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- CN106833890A CN106833890A CN201710150944.0A CN201710150944A CN106833890A CN 106833890 A CN106833890 A CN 106833890A CN 201710150944 A CN201710150944 A CN 201710150944A CN 106833890 A CN106833890 A CN 106833890A
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- CN
- China
- Prior art keywords
- oil
- water
- vegetable oil
- tank
- soap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B3/00—Refining fats or fatty oils
- C11B3/02—Refining fats or fatty oils by chemical reaction
- C11B3/04—Refining fats or fatty oils by chemical reaction with acids
Abstract
A kind of method for reducing oil-containing in vegetable oil alkali refining washing waste water, is related to fats and oils processing refining techniques field, after being processed by being respectively configured aqueous citric acid solution, hot water and de- soap edible vegetable oil, oil-water separation, you can realize.The beneficial effects of the invention are as follows：The present invention adds aqueous citric acid solution by oil, in aqueous mixtures, not only it has been passivated the metal ion in grease, reduce the content of phospholipid in grease, grease color development probability is slow down, sale shelf life is extended, what is more important reduces grease emulsifying probability, reduce oil-containing in washing water, yield is improve, environmental protection treatment pressure and expense is reduced, good economic benefit and social benefit is achieved.
Description
Technical field
The present invention relates to fats and oils processing refining techniques field, and in particular to one kind contains in reducing vegetable oil alkali refining washing waste water
The method of oil.
Background technology
Alkali refining and physical refining are learned in vegetable oil and fat refining differentiation, wherein chemical alkali refining loss accounts for whole refining process total losses
More than 90%, how refining yield, reduce loss are improved in alkali refining process particularly important.Alkali refining procedure technology is divided into plus alkali takes off
Soap, two links of washing.Water washing effect is bad to occur following unfavorable production status：Grease emulsifying is caused, oil-containing is high in water, oil
In residual soap is high, waste water COD is high, influence carclazyte decolorizing effect, influence refining yield, increase environmental protection treatment pressure and expense, be to adapt to
These requirements, refining techniques must grow with each passing hour, and constantly update, and especially for vegetable oil when alkali refining is carried out, enter water-filling
When washing, substantial amounts of oil can be blended in waste water, when so not only resulting in refining, the missing of efficiency, while can also cause grease
It is lost in, cost of idleness.
The content of the invention：
The technical problems to be solved by the invention are to provide a kind of simple production process, effectively prevent grease water washed
There is emulsification in journey, reduce washing waste water Residual oil and the side for reducing oil-containing in vegetable oil alkali refining washing waste water of the oily residual soap of drying
Method.
The technical problems to be solved by the invention are realized using following technical scheme：
A kind of method for reducing oil-containing in vegetable oil alkali refining washing waste water, it is characterised in that comprise the following steps：
1) the de- soap edible vegetable oil for preparing is delivered in blender, it is stand-by；
2) a complex acid tank is selected, using 95 DEG C of hot water and solid citric acid configure the citric acid of 18 Baume degrees in tank
The aqueous solution, it is standby；
3) hot-water cylinder is selected, hot water is added in tank, it is standby；
4) soap edible vegetable oil in the material in above-mentioned steps 1,2 and 3, will be taken off, at 85-90 DEG C, flow is controlled 8.5 Oil-temperature control
Ton hour；At 93-97 DEG C, flow is controlled to 425 ls/h to the control of hot water water temperature, and total amount is the 5% of de- soap edible vegetable oil weight；Lemon
Lemon aqueous acid flow is 5 ls/h, and total amount is the 0.6% of de- soap edible vegetable oil weight；
5) all materials in above-mentioned steps 4 are entered in centrifugal mixer simultaneously, controls the rotating speed stirring of 800r/min
3-5 seconds；
6) material after being processed in above-mentioned steps 5, in the state of pressure is 0.2Mpa, input one is with baffle means
In water washing tank, enter line delay mixing 3-5 points of min；
7) material after above-mentioned steps 6 are processed, is separated oil, water using self-cleaning type centrifuge, and edible vegetable oil then is entered into dry
After dry device is dehydrated, collect, after washing waste water enters water seal tank, then carry out environmental protection treatment；
The hot-water line in complex acid tank and step 3 in above-mentioned steps 2 is provided with sour measuring pump, suspended body flowmeter, convenient
The metering of material, more precisely；
The beneficial effects of the invention are as follows：The present invention is by aqueous citric acid solution is added in oil, aqueous mixtures, being not only passivated
Metal ion in grease, reduces the content of phospholipid in grease, slow down grease color development probability, extends sale shelf
Phase, what is more important reduces grease emulsifying probability, reduces oil-containing in washing water, improves yield, reduces environmentally friendly place
Reason pressure and expense, achieve good economic benefit and social benefit.
Brief description of the drawings
Fig. 1 is process chart of the invention.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, tie below
Specific embodiment is closed, the present invention is expanded on further.
Embodiment 1
A kind of method for reducing oil-containing in vegetable oil alkali refining washing waste water, comprises the following steps：
1) the de- soap edible vegetable oil for preparing is delivered in blender, it is stand-by；
2) a complex acid tank is selected, using 95 DEG C of hot water and solid citric acid configure the citric acid of 18 Baume degrees in tank
The aqueous solution, it is standby；
3) hot-water cylinder is selected, hot water is added in tank, it is standby；
4) soap edible vegetable oil will be taken off in the material in above-mentioned steps 1,2 and 3, Oil-temperature control at 90 DEG C, flow control 8.5 tons/
Hour；At 97 DEG C, flow is controlled to 425 ls/h to the control of hot water water temperature, and total amount is the 5% of de- soap edible vegetable oil weight；Citric acid water
Liquid inventory is 5 ls/h, and total amount is the 0.6% of de- soap edible vegetable oil weight；
5) all materials in above-mentioned steps 4 are entered in centrifugal mixer simultaneously, controls the rotating speed stirring of 800r/min
3-5 seconds；
6) material after being processed in above-mentioned steps 5, in the state of pressure is 0.2Mpa, input one is with baffle means
In water washing tank, enter line delay and mix 5 points of min；
7) material after above-mentioned steps 6 are processed, is separated oil, water using self-cleaning type centrifuge, and edible vegetable oil then is entered into dry
After dry device is dehydrated, collect, after washing waste water enters water seal tank, then carry out environmental protection treatment；
In order in embodying this technique, significant technique effect, the application is illustrated by comparative testing below：
Contrast before and after transformation
Verified by actual production, on June 1st, 2012 is extremely after taking transformation preceding 10 days Mays in 2011 to May 19 and transforming
The data on June 10, can understand and illustrate, using this technique to aqueous citric acid solution is added in oil, can be by washing waste water
Oil-containing is controlled below 0.5%, and 0.7%-1.2% is reduced than oil-containing in former technique washing waste water, improves oil and fat refining
During yield, reduce production cost.
General principle of the invention and principal character and advantages of the present invention has been shown and described above.The technology of the industry
Personnel it should be appreciated that the present invention is not limited to the above embodiments, simply explanation described in above-described embodiment and specification this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appending claims and its
Equivalent thereof.
Claims (2)
1. it is a kind of reduce vegetable oil alkali refining washing waste water in oil-containing method, it is characterised in that comprise the following steps：
1) the de- soap edible vegetable oil for preparing is delivered in blender, it is stand-by；
2) a complex acid tank is selected, the citric acid for configure 18 Baume degrees using 95 DEG C of hot water and solid citric acid in tank is water-soluble
Liquid, it is standby；
3) hot-water cylinder is selected, hot water is added in tank, it is standby；
4) soap edible vegetable oil will be taken off in the material in above-mentioned steps 1,2 and 3, Oil-temperature control at 85-90 DEG C, flow control 8.5 tons/
Hour；At 93-97 DEG C, flow is controlled to 425 ls/h to the control of hot water water temperature, and total amount is the 5% of de- soap edible vegetable oil weight；Lemon
Aqueous acid flow is 5 ls/h, and total amount is the 0.6% of de- soap edible vegetable oil weight；
5) all materials in above-mentioned steps 4 are entered in centrifugal mixer simultaneously, controls the rotating speed stirring 3-5 of 800r/min
Second；
6) material after being processed in above-mentioned steps 5, in the state of pressure is 0.2Mpa, puts into a washing with baffle means
In tank, enter line delay mixing 3-5 points of min；
7) material after above-mentioned steps 6 are processed, is separated oil, water using self-cleaning type centrifuge, and edible vegetable oil then is entered into drier
After being dehydrated, collect, after washing waste water enters water seal tank, then carry out environmental protection treatment.
2. it is according to claim 1 it is a kind of reduce vegetable oil alkali refining washing waste water in oil-containing method, it is characterised in that：On
The hot-water line stated in complex acid tank and step 3 in step 2 is provided with sour measuring pump, suspended body flowmeter, facilitates the meter of material
Amount, more precisely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710150944.0A CN106833890A (en) | 2017-03-14 | 2017-03-14 | A kind of method for reducing oil-containing in vegetable oil alkali refining washing waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710150944.0A CN106833890A (en) | 2017-03-14 | 2017-03-14 | A kind of method for reducing oil-containing in vegetable oil alkali refining washing waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106833890A true CN106833890A (en) | 2017-06-13 |
Family
ID=59144455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710150944.0A Pending CN106833890A (en) | 2017-03-14 | 2017-03-14 | A kind of method for reducing oil-containing in vegetable oil alkali refining washing waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106833890A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101735886A (en) * | 2009-12-23 | 2010-06-16 | 湖南金浩茶油股份有限公司 | Novel process for refining oil-tea camellia seed crude oil |
-
2017
- 2017-03-14 CN CN201710150944.0A patent/CN106833890A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101735886A (en) * | 2009-12-23 | 2010-06-16 | 湖南金浩茶油股份有限公司 | Novel process for refining oil-tea camellia seed crude oil |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170613 |
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| RJ01 | Rejection of invention patent application after publication |