CN107118850A - The soap stock solvent recovery process and equipment of a kind of miscella alkali refining output - Google Patents
The soap stock solvent recovery process and equipment of a kind of miscella alkali refining output Download PDFInfo
- Publication number
- CN107118850A CN107118850A CN201710242880.7A CN201710242880A CN107118850A CN 107118850 A CN107118850 A CN 107118850A CN 201710242880 A CN201710242880 A CN 201710242880A CN 107118850 A CN107118850 A CN 107118850A
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- CN
- China
- Prior art keywords
- soap stock
- solvent
- soap
- drier
- equipment
- 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
-
- 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
- C11B13/00—Recovery of fats, fatty oils or fatty acids from waste materials
- C11B13/02—Recovery of fats, fatty oils or fatty acids from waste materials from soap stock
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
-
- 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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
Abstract
The soap stock solvent recovery process and equipment of a kind of miscella alkali refining output, it is specifically a kind of suitable for rice bran and the soap stock solvent recovery process and equipment of cottonseed grease miscella alkali refining output the present invention relates to the soapstock treatment Processes and apparatus that fats and oils processing is produced.Equipment is made up of blender, heater, falling film evaporator, drier, condenser, diversion box etc. through being sequentially connected.Technological process is dilution mixing, the pre-heat treatment, evaporates pre- precipitation, drying process, condenses and reclaim.Present device has treating capacity big, and method is simple, easy to operate, can continuously produce, and the low feature of production cost, is especially embodied on treatment effect, and the solvent of processed soap stock can be made to be less than 800ppm.It is significantly less than national standard.Safety guarantee is improved for follow-up storage transport, the problems that existing equipment and handling process are present are solved.
Description
Technical field
It is specifically that one kind is applied to rice bran and cottonseed oil the present invention relates to waste material disposal Processes and apparatus in fats and oils processing
The soap stock solvent recovery process and equipment of fat miscella alkali refining output.
Background technology
Soap stock as miscella alkali refining principal by product.It is production synthetic detergent, decoration coating, lubricating grease, doctor
The important source material of medicine preparation etc..Because needing to add a certain amount of n-hexane in miscella alkali refining process as extractant, institute
There is dissolvent residual in the soap stock of output, usual content is in 1-3%.Because n-hexane has inflammable, explosive, volatile property
Matter, so the soap stock of this part high solvent content all has very big danger, palpus during storage, transport, processing
Will pass through carrying out precipitation treatment, it is residual it is molten it is up to standard after just can storage outdoors, transport, process.Therefore, soap stock is dried and solvent recovery processing is aobvious
Obtain particularly significant.The equipment and technique not being molded also for processing miscella alkali refining soap stock at present, are also one for equipment
A little simple wet dregs of rice evaporator, interval precipitation tanks etc..Have plenty of in handling process and soap stock material is sent directly into wet dregs of rice evaporator
Solvent is steamed.Also soap stock is injected into alcohol and aqueous acetone solution and handled with inorganic acid.Also it is to send soap stock
Enter into multiple interval precipitation tanks with agitator the precipitation that heats up, and need to add defoamer into tank.Also it is in interval
Vacuum desolvation in precipitation tank.Apparatus above and technique, which are existed, wastes soap stock, the protein content of the wet dregs of rice of reduction, solvent loss
The problems such as amount is big, undesirable precipitation effect, complex operation, production cost are high and can not continuously produce.
The content of the invention
For defect of the prior art, problem solved by the invention is to provide a kind of easy to operate, treatment effect reason
Think, cost it is low and can continuous desolventizing miscella alkali refining soap stock drying and solvent recovery process and equipment, solve existing equipment
The problem of existing with technique.
Technical solution of the present invention is as follows；
1st, equipment
There is a blender in the front portion of equipment, have a steam heater in mixing body rear belt, in blender and steam
There is a delivery pump between heater.Blender, steam heater and delivery pump are connected by pipeline.Have one at steam heater rear portion
Falling film evaporator, a falling liquid film flash evaporation is carried in falling film evaporator side.Steam heater is connected with falling film evaporator by pipeline.
There is a soap stock drier at falling film evaporator rear portion, have a soap stock temporary storage tank in the bottom of soap stock drier, in soap stock temporary storage tank
On have a discharge pump.A falling liquid film drawing pump is carried between falling liquid film flash evaporation and soap stock drier.At the rear portion of soap stock drier
There is a soap stock flash evaporation, there is a liquid storage tank in the bottom of soap stock flash evaporation, reflux pump is carried on liquid storage tank.In the afterbody of equipment
There is a condenser, carry a water distributing can at the rear portion of condenser, have a condensate tank between water distributing can and condenser, cold
Condensate pump is carried on lime set storage tank.Steam heater, falling film evaporator, soap stock drier, soap stock flash evaporation and condenser point
It is not interconnected by pipeline and main steam header line.
2nd, recovery process
Soap stock dilution mixing；
Water is added in soap stock material, mixing is diluted in soap stock blender, water temperature is 50-65 DEG C, and addition is soap stock material
The 25-40% of amount, stirs.
Pre-add is heat-treated；
Soap stock material after dilution is preheated in the heater, heating-up temperature is 60-70 DEG C.
Evaporate pre- precipitation；
Pre-warmed soap stock material is evaporated pre- precipitation in falling film evaporator, pre- precipitation temperature is 70-80 DEG C, continuously
It is pre- de-, contain quantity of solvent≤3% after precipitation in soap stock material.
Drying process；
Processing is dried in soap stock material after pre- precipitation in drier, drying temperature is 80-90 DEG C.Soap stock after drying
Solvent be less than 800ppm.
Condensation is reclaimed；
The water vapour produced will be evaporated and solvent vapo(u)r carries out condensation process, then condensate liquid is carried out to the separation of solvent and water
Processing, by solvent recovery.
The method of work of present device is；
Soap stock, which enters, carries out the mixing that adds water in soap stock blender, steam heater is pumped into after being well mixed and is heated.Heating
Soap stock afterwards be transported in falling film evaporator heated, evaporated, the pre- precipitation of soap stock.Solvent gas and water vapour are passed through with soap stock
Flash evaporation is separated, and solvent gas and water vapour enter condenser by flash evaporation upper outlet, and the soap stock of pre- precipitation is under flash evaporation
Portion outlet discharge.It is pre- it is de- after soap stock evaporation is heated in soap stock drier.Solvent and water vapour, foam are from drier top
Into flash evaporation separation, solvent and water vapour after separation enter condenser by flash evaporation upper outlet, and foam is under flash evaporation
Outlet discharge circulation in portion is pumped into soap stock temporary storage tank；Dried soap stock is discharged by drier bottom.Liquid under condenser condensation
Flow into condensate tank, be then pumped to water distributing can.The solvent that water distributing can is separated is pumped into the former point water leached in workshop
Case.The waste water separated flows into the former cooker for leaching workshop and carries out boiling.The soap stock solvent recovery process and equipment of the present invention
Big with processing soap stock amount, easy to operate, continuous production, production cost is low, the features such as can thoroughly removing the solvent in soap stock.
Solve the problems that existing equipment and method are present.
Brief description of the drawings
Accompanying drawing is present device structural representation
1- blender 2- delivery pump 3- steam heater 4- falling film evaporator 5- falling liquid film flash evaporation 6- falling liquid film drawing pumps
7- soap stock drier 8- soap stock flash evaporation 9- condenser 10- soap stock temporary storage tank 11- discharge pump 12- liquid storage tanks 13- flows back
Pump 14- condensate tank 15- condensate pump 16- water distributing cans
Embodiment：
Embodiment 1
Step is as follows：
Using 21 tons of the soap stock raw material of mixed cotton seed oil alkali refining institute output, in soap stock solvent be 4%,
Aqueous 35%, containing soap stock and oil 61%.
(1) soap stock raw material is continuously pumped into blender by delivery pump, while adding the water of soap stock weight 30% as dilute
Agent is released, water temperature is 60 degree, is stirred.
(2) delivery pump extracts feedstock transportation out to heater from blender, enters heater from heater base, by adding
During hot device, steam indirectly heat, heating-up temperature is 70 DEG C.
(3) soap stock for going out heater enters falling film evaporator, and falling film evaporator is steam indirectly heat, and soap stock steams in falling liquid film
Carry out laser heating in hair device, evaporate preliminary precipitation, heating-up temperature is 70 DEG C, soap stock is removed 40% solvent, evaporation it is molten
Agent gas and vapor and soap stock enter in flash evaporation, and gas and soap stock are separated through flash evaporation, gas to condenser；Soap stock is by soap
Pin delivery pump is averagely delivered in 2 soap stock driers through soap stock flowmeter.
(4) it is pre- it is de- after soap stock enter from soap stock drier top, soap stock heating evaporation in drier is dried, soap
Soap stock outlet temperature control in foot dryness device bottom is at 80 DEG C, and the solvent gas and vapor of evaporation and a small amount of soap stock of entrainment are from dry
Dry device top enters in flash evaporation, is separated through flash evaporation, solvent gas and vapor are suitable for reading to condenser from flash evaporation；Entrainment
A small amount of soap stock mouth under flash evaporation flows into liquid collecting tank.Dried soap stock drains into soap stock collecting tank.Soap stock pump is from soap stock collecting tank
Soap stock storage facility outside workshop is delivered in middle extraction.
(5) step (3) and step (4) solvent gas and vapor enter in condenser, the liquid flow of condensed device condensation
Enter in diversion box, the separation of solvent and water is carried out by point water, solvent enters all stock relocations of solvent point water and divides water circulation use again；
Waste water enters waste water after cooker, boiling and drains into outdoor water seal tank, and tail gas enters recovery by mineral oil system.
(6) a small amount of soap stock carried secretly in the step soap stock that mouth is flowed into liquid collecting tank, liquid collecting tank under flash evaporation is pumped into soap stock
In blender.
Soap stock solvent after processing is less than 800ppm,
Embodiment 2
Step is as follows：
Using 50 tons of the soap stock raw material of rice bran miscella alkali refining institute output, soap stock is containing solvent 11%, aqueous
35%th, containing soap stock and oil 54%.
(1) it is continuously pumped into by delivery pump in blender, while the water of addition 25% is used as diluent, 60 DEG C of water temperature, stirring
Uniformly.
(2) raw material is extracted out from blender by delivery pump and is delivered to heater, enters heater from heater base, passes through
During heater, steam indirectly heat, heating-up temperature is 60 DEG C.
(3) soap stock for going out heater enters falling film evaporator, and falling film evaporator is steam indirectly heat, and soap stock steams in falling liquid film
Laser heating is carried out in hair device, preliminary precipitation is evaporated, heating-up temperature is 75 DEG C, the solvent of soap stock is down to less than 3%, steaming
The solvent gas and vapor and soap stock of hair enter in flash evaporation, and gas and soap stock are separated through flash evaporation, gas to condenser；Soap
Pin is averagely delivered in 4 soap stock driers by soap stock delivery pump through soap stock flowmeter.
(4) it is pre- it is de- after soap stock enter from soap stock drier top, soap stock heating evaporation in drier is dried, soap
Soap stock outlet temperature control in foot dryness device bottom is at 85 DEG C, and the solvent gas and vapor of evaporation and a small amount of soap stock of entrainment are from dry
Dry device top enters in flash evaporation, is separated through flash evaporation, solvent gas and vapor are suitable for reading to condenser from flash evaporation；Entrainment
A small amount of soap stock mouth under flash evaporation flows into liquid collecting tank.Dried soap stock drains into soap stock collecting tank.Soap stock pump is from soap stock collecting tank
Soap stock storage facility outside workshop is delivered in middle extraction.
(5) step (3) and step (4) solvent gas and vapor enter in condenser, the liquid flow of condensed device condensation
Enter in diversion box, the separation of solvent and water is carried out by point water, solvent enters all stock relocations of solvent point water and divides water circulation use again；
Waste water enters waste water after cooker, boiling and drains into outdoor water seal tank, and tail gas enters recovery by mineral oil system.
(6) a small amount of soap stock carried secretly in the step soap stock that mouth is flowed into liquid collecting tank, liquid collecting tank under flash evaporation is pumped into soap stock
In blender.
Soap stock solvent after processing is less than 800ppm.
Claims (2)
1. a kind of soap stock solvent reclaimer of miscella alkali refining output, it is characterized in that；There is a blender in the front portion of equipment
(1), there is a steam heater (3) in mixing body rear belt, there is a delivery pump (2) between blender and steam heater,
There is a falling film evaporator (4) at steam heater rear portion, a falling liquid film flash evaporation (5) is carried in falling film evaporator side, in falling liquid film
Evaporator rear portion has a soap stock drier (7), has a soap stock buffer (10) in the bottom of soap stock drier, in soap stock buffer
On have a discharge pump (11), between falling liquid film flash evaporation and soap stock drier carry a falling liquid film drawing pump (6), in soap stock drier
Rear portion have a soap stock flash evaporation (8), have a liquid storage tank (12) in the bottom of soap stock flash evaporation, on liquid storage tank carry reflux pump
(13), there is a condenser (9) in the afterbody of equipment, a distributive pipe (16) is carried at the rear portion of condenser, in water distributing can and condensation
There is a condensate tank (14) between device, condensate pump (15), steam heater, falling film evaporation are carried on condensate tank
Device, soap stock drier, soap stock flash evaporation and condenser are connected with each other by pipeline and main steam header line respectively.
2. a kind of soap stock solvent recovery process of miscella alkali refining output, it is characterized in that；
Soap stock dilution mixing；
Water is added in soap stock material, mixing is diluted in soap stock blender, water temperature is 50-65 DEG C, and addition is the 25- of soap stock material
40%, stir,
Pre-add is heat-treated；
Soap stock material after dilution is preheated in heat collector, heating-up temperature is 60-70 DEG C,
Evaporate pre- precipitation；
Pre-warmed soap stock material is entered into the pre- precipitation of administrative law in falling film evaporator, pre- precipitation temperature is 70-80 DEG C, continuous pre-
It is de-, it is less than or equal to 3% containing quantity of solvent in soap stock material after precipitation,
Drying process
Processing is dried in soap stock material after pre- precipitation in drier, drying temperature is 80-90 DEG C, and soap stock is molten after drying
Agent content is less than 800ppm,
Condensation is reclaimed；
The water vapour produced will be evaporated and solvent vapo(u)r carries out condensation process, then by the separation of condensate liquid progress solvent and water
Reason, by solvent recovery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710242880.7A CN107118850A (en) | 2017-04-07 | 2017-04-07 | The soap stock solvent recovery process and equipment of a kind of miscella alkali refining output |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710242880.7A CN107118850A (en) | 2017-04-07 | 2017-04-07 | The soap stock solvent recovery process and equipment of a kind of miscella alkali refining output |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107118850A true CN107118850A (en) | 2017-09-01 |
Family
ID=59724774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710242880.7A Pending CN107118850A (en) | 2017-04-07 | 2017-04-07 | The soap stock solvent recovery process and equipment of a kind of miscella alkali refining output |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107118850A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102250692A (en) * | 2011-06-22 | 2011-11-23 | 河南工业大学 | Desolventizing method of soapstock generated during mixed oil refining |
| US8246712B2 (en) * | 2007-02-27 | 2012-08-21 | National University Corporation Shizuoka University | Soapstock treatment apparatus, soapstock treatment method, and method for manufacturing fertilizer derived from soapstock |
| CN104152272A (en) * | 2014-07-23 | 2014-11-19 | 青岛和合汇途工程技术有限公司 | Two-stage efficient soapstock desolventizing system for mixed oil refinement |
| CN205062035U (en) * | 2015-10-19 | 2016-03-02 | 晨光生物科技集团喀什有限公司 | Concise nigre solvent desorption device of cottonseed miscella |
-
2017
- 2017-04-07 CN CN201710242880.7A patent/CN107118850A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8246712B2 (en) * | 2007-02-27 | 2012-08-21 | National University Corporation Shizuoka University | Soapstock treatment apparatus, soapstock treatment method, and method for manufacturing fertilizer derived from soapstock |
| CN102250692A (en) * | 2011-06-22 | 2011-11-23 | 河南工业大学 | Desolventizing method of soapstock generated during mixed oil refining |
| CN104152272A (en) * | 2014-07-23 | 2014-11-19 | 青岛和合汇途工程技术有限公司 | Two-stage efficient soapstock desolventizing system for mixed oil refinement |
| CN205062035U (en) * | 2015-10-19 | 2016-03-02 | 晨光生物科技集团喀什有限公司 | Concise nigre solvent desorption device of cottonseed miscella |
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Application publication date: 20170901 |
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