CN103480163A - Device for removing dioxane from ethoxylation alkyl sulfate through centrifugal spray - Google Patents
Device for removing dioxane from ethoxylation alkyl sulfate through centrifugal spray Download PDFInfo
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- CN103480163A CN103480163A CN201310432173.6A CN201310432173A CN103480163A CN 103480163 A CN103480163 A CN 103480163A CN 201310432173 A CN201310432173 A CN 201310432173A CN 103480163 A CN103480163 A CN 103480163A
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- centrifugal spray
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- diox
- feeding
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- 239000007921 spray Substances 0.000 title claims abstract description 84
- 150000008051 alkyl sulfates Chemical class 0.000 title claims abstract description 22
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 title abstract description 5
- 238000007046 ethoxylation reaction Methods 0.000 title abstract 3
- 239000000463 material Substances 0.000 claims abstract description 62
- APSBXTVYXVQYAB-UHFFFAOYSA-M sodium docusate Chemical compound [Na+].CCCCC(CC)COC(=O)CC(S([O-])(=O)=O)C(=O)OCC(CC)CCCC APSBXTVYXVQYAB-UHFFFAOYSA-M 0.000 claims description 56
- 238000007599 discharging Methods 0.000 claims description 14
- 238000011084 recovery Methods 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 13
- 238000000034 method Methods 0.000 description 12
- 239000007788 liquid Substances 0.000 description 7
- 238000005119 centrifugation Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000002537 cosmetic Substances 0.000 description 4
- 238000000889 atomisation Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005202 decontamination Methods 0.000 description 2
- 230000003588 decontaminative effect Effects 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000008233 hard water Substances 0.000 description 2
- 238000012946 outsourcing Methods 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000002453 shampoo Substances 0.000 description 2
- 239000000344 soap Substances 0.000 description 2
- 238000001291 vacuum drying Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- JECYNCQXXKQDJN-UHFFFAOYSA-N 2-(2-methylhexan-2-yloxymethyl)oxirane Chemical compound CCCCC(C)(C)OCC1CO1 JECYNCQXXKQDJN-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 208000005623 Carcinogenesis Diseases 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 241000702321 Microvirus Species 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 206010040880 Skin irritation Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 230000036952 cancer formation Effects 0.000 description 1
- 231100000504 carcinogenesis Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 238000009690 centrifugal atomisation Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- JHAYEQICABJSTP-UHFFFAOYSA-N decoquinate Chemical compound N1C=C(C(=O)OCC)C(=O)C2=C1C=C(OCC)C(OCCCCCCCCCC)=C2 JHAYEQICABJSTP-UHFFFAOYSA-N 0.000 description 1
- 229960001878 decoquinate Drugs 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000002781 deodorant agent Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 239000002085 irritant Substances 0.000 description 1
- 231100000021 irritant Toxicity 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 210000004400 mucous membrane Anatomy 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 230000036556 skin irritation Effects 0.000 description 1
- 231100000475 skin irritation Toxicity 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000000606 toothpaste Substances 0.000 description 1
- 229940034610 toothpaste Drugs 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 239000013638 trimer Substances 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
Classifications
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention relates to a device for removing dioxane from ethoxylation alkyl sulfate through centrifugal spray and aims to provide the device having the characteristics of high dioxane removal efficiency, low energy consumption, easiness in control and stable operation. The technical scheme is as follows: the device for removing dioxane from ethoxylation alkyl sulfate through centrifugal spray comprises a feeding hole, a feeding device, a centrifugal spray tower, a discharge device, a discharge hole and a recovery device which are all connected sequentially, wherein the recovery device is used for conveying the materials at the recovery outlet of the centrifugal spray tower to the feeding hole through a pipeline; in the centrifugal spray tower, the raw material feeding hole is communicated with the feeding device, dry air is inputted to an air inlet, the discharge hole is communicated with the discharge device, and the recovery outlet is communicated with the recovery device; the recovery device comprises a feeding pneumatic valve, a temporary storage tank, a feed-back pneumatic valve and a feed-back metering pump which are all sequentially communicated between the centrifugal spray tower and the feeding hole; the feeding device comprises a feeding pneumatic valve and feeding metering pump which are communicated in series; the discharge device comprises a discharge pneumatic valve and a discharge metering pump which are communicated in series.
Description
Technical field
The present invention relates to a kind of production and processing device of ethoxylated alkyl sulfates.
Background technology
Ethoxylated alkyl sulfates (hereinafter to be referred as AES) is a kind of important anion surfactant, generally take fatty alcohol as raw material and by the epoxy addition, SO 3 sulfonated and in and technique make; AES has the characteristics such as good wetting, decontamination, foam, emulsification, solubilising, and the strong and calcium soap good dispersion of anti-hard water still has excellent decontamination, foam and wetting power under hard water or without phosphorus condition, can be widely used in various washing agent articles for use; AES also has very good biological degradability, safe (excitant and toxicity are all lower), performance is gentle and little to skin irritation, and after improving formula and forming, (reducing the consumption of sodium phosphate trimer) can be applicable in the personal-care supplies such as without phosphorus, low-phosphate laundry detergent powder, soap, liquid detergent; In addition, AES also can be widely used in other industrial circles such as ore dressing, leather, coating, plastics, rubber; Thereby AES is the very wide surfactant of a kind of excellent performance, development prospect.
In the production process of AES, due to the reasons such as raw material, technology controlling and process (main cause is strong acid), can cause the side reaction containing the addition product " decoquinate reaction " of oxirane, produce a certain amount of 1, the 4-diox, it is toothpaste, shampoo, deodorant, gargle the main source of Isosorbide-5-Nitrae-dioxs in the personal-care supplies such as agent, cosmetics.Isosorbide-5-Nitrae-dioxs (hereinafter to be referred as diox) have another name called Isosorbide-5-Nitrae-dioxane or dioxane, are a kind of colourless liquids, and molecular formula is C
4h
8o
2boiling point is 101.3 ℃, can with water and common immiscible organic solvent, belong to the micro-virus kind material, irritant to skin, mucous membrane, the chemical carcinogenesis risk is arranged, by IARC(international cancer research institution) classify the chemical carcinogen that animal used as test is had to enough evidences as, in cosmetics, forbid adding as the raw materials for production component.
The report that detects the diox residual quantity in March, 2009 in the baby of U.S. Johnson & Johnson articles for washing has caused the great disturbance of industry, and in July, 2010, Hong Kong exposed again overlord's shampoo containing 27～10mg/kg diox.The Detection & Controling of visible ， diox have become the manufacturer, have used the focus of enterprise and quality supervision department.
Be controlled at≤100mg/kg of diox content in the general consumer goods advises in the assessment technology file of Dui diox in Australia health bureau (NICNAS).Be controlled at≤100mg/kg of the regulation cosmetics Zhong of Taiwan Department of Health of Executive Yuan diox content.U.S. government's industrial hygiene meeting (ACGIH) regulation application on human skin contact diox allows exposed amount at≤20mg/kg.Classify diox as banned substance in " the cosmetics health standard " of China's issue in 2007, in new AES standard GB/T/T13529, increase regulation diox are limited the quantity of as 100mg/kg.Both at home and abroad enterprise very pays close attention to diox in AES, a lot of daily use chemicals application enterprise all clear the residual quantity of AES Zhong diox, require raw material Zhong diox to limit the quantity of and be less than 30mg/kg.
At present, lot of domestic and international manufacturer has taked related measure in the production process of AES, to reduce diox content in product.
Chemithon company road after production technology of the U.S. has designed special removing process to remove diox Zhong product.Its advantage is: it is effective that turbulent flow removes the device heat and mass, not high to the required precision of production control.Its shortcoming is: product is cooled in N-process, removes device and needs again to reheat entering, and energy consumption is larger; Need a newly-increased procedure and equipment investment larger.
Gondola Ballestra company has designed special vacuum neutralized system, and in N-process, the Dui diox is removed.Its advantage is: complete neutralization and remove diox in neutralized system, energy consumption is lower.Its shortcoming is: equipment and control are had relatively high expectations, and system is unstable, and the adjusting difficulty is large.
Remove the technique of diox in the patent of Zhejiang Jilida Chemical Co., Ltd-a kind of production of ethoxylated alkyl sulfate, road removing process after the adopting removing process of company (similar Chemithon), the ethoxylated alkyl sulfates of neutralized system output is inputted to degasser after heating, remove from product after Shi diox and water azeotropic under heating, condition of negative pressure.
The injecting type of the patent of Hu'nan Licheng Industrial Co., Ltd.-a kind of ethoxylated alkyl sulfates takes off the diox device and method, adopts material is ejected on the vacuum drying chamber interior walls, can increase the specific area of material and have higher removal efficiency.But its shortcoming is: material also needs through the heater heating before entering vacuum drying cabinet, and energy consumption is larger.
Summary of the invention
The objective of the invention is to overcome the deficiency in the above-mentioned background technology, a kind of centrifugal spray Tuo diox device of ethoxylated alkyl sulfates is provided, this device should have that the diox removal efficiency is high, energy consumption is low, be easy to control and stable characteristics.
Technical scheme of the present invention is: a kind of centrifugal spray Tuo diox device of ethoxylated alkyl sulfates, it is characterized in that: this device comprises charging aperture, feed arrangement, centrifugal spray tower, drawing mechanism and the discharging opening connected successively by pipeline, and by pipeline, centrifugal spray tower is reclaimed to the retracting device that the material exported is transported to charging aperture;
In described centrifugal spray tower, material inlet is communicated with feed arrangement, and air inlet passes into dry air, and product outlet is communicated with drawing mechanism, reclaims outlet and is communicated with retracting device;
Described retracting device comprises the feeding pneumatic operated valve be communicated with between centrifugal spray tower and charging aperture successively, temporary tank, feed back pneumatic operated valve and feed back measuring pump;
Described feed arrangement comprises charging pneumatic operated valve and the charging measuring pump that series connection is connected;
Described drawing mechanism comprises discharging pneumatic operated valve and the discharging measuring pump that series connection is connected.
Described centrifugal spray tower also is being communicated with the separator be in series by least two separators.
In described separator, the airflow inlet connection of each separator is positioned at the air stream outlet of its left side separator and the delivery outlet of each separator all is communicated with the collector of centrifugal spray tower bottom by corresponding screw feeder, and the airflow inlet of leftmost side separator is communicated with the mixed airflow outlet of centrifugal spray tower and the air stream outlet connection air-introduced machine of rightmost side separator.
Mixed airflow outlet 3-5 in described collector, higher than the bottom 100～150cm of collector.
The temperature of described dry air is 30～80 ℃, and flow is 1000～10000m
3/ h.
The invention has the beneficial effects as follows:
1, be provided with centrifugal spray tower in the present invention, this centrifugal spray tower can increase the specific area of material greatly, only needs a step process just can remove diox, has higher diox removal efficiency;
2, the present invention's material end to end and material during the start-stop car in process of production, can squeeze in the temporary tank of retracting device and be preserved, and can reenter in production process and again remove diox, greatly promoted the utilization rate of material;
3, centrifugal spray tower of the present invention can utilize plant tail gas (as the tail gas of sulfuric acid plant) as dry source of the gas, thereby reduces energy resource consumption;
4, the material that the present invention uses will be neutralized in advance before entering production process, not only can save original system in and circulation step, further reduce energy resource consumption, and the uniformity after can also the improving material atomization, further add the removal efficiency of strong diox;
5, all devices of the present invention are ripe prior art, can obtain by outsourcing, make simple in structure and manufacture facility, can effectively reduce manufacturing cost; The present invention simultaneously also has advantages of stable and is easy to control.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
The specific embodiment
Below in conjunction with Figure of description, the invention will be further described, but the present invention is not limited to following examples.
As shown in Figure 1, a kind of centrifugal spray Tuo diox device of ethoxylated alkyl sulfates, comprise the charging aperture 1, feed arrangement, centrifugal spray tower 3, drawing mechanism and the discharging opening 5 that connect successively by pipeline, and by pipeline, the recovery outlet material of centrifugal spray tower is transported to the retracting device of charging aperture.
Described retracting device is included in the feeding pneumatic operated valve 6 that between centrifugal spray tower and charging aperture, series connection is connected successively, temporary tank 7, feed back pneumatic operated valve 8-1 and feed back measuring pump 8-2; Described feed arrangement comprises charging pneumatic operated valve 2-1 and the charging measuring pump 2-2 that series connection is connected; Described drawing mechanism comprises discharging pneumatic operated valve 4-1 and the discharging measuring pump 4-2 that series connection is connected.
In described centrifugal spray tower, material inlet 3-1 is communicated with feed arrangement, and air inlet 3-2 passes into dry air C, and product outlet 3-3 is communicated with drawing mechanism, reclaims outlet 3-4 and is communicated with retracting device; The high speed atomizer 15(that described centrifugal spray tower comprises drier (tubular drier) 16, be arranged on the drier top is high speed centrifugal atomization device), be positioned at the cavity of collector 17(centrifugal spray tower bottom of centrifugal spray tower bottom as collector); The working speed of high speed atomizer is 5000～20000rpm; Be provided with mixed airflow outlet 3-5 and liquid level gauge (omitting in figure) in collector, the mixed airflow outlet is than the bottom of collector (being the bottom of centrifugal spray tower) high approximately 100～150cm; Dry air is from the emptying tail gas of outside air dryer systems or near sulfuric acid plant, and temperature is 30～80 ℃, and flow is 1000～10000m
3/ h.
Further, described centrifugal spray tower also is being communicated with separator, and this separator is in series by least two separators; In described separator, the airflow inlet connection of each separator is positioned at the air stream outlet of its left side separator and the delivery outlet of each separator all connects the collector of the bottom of centrifugal spray tower by corresponding screw feeder, and the airflow inlet of leftmost side separator is communicated with the mixed airflow outlet 3-5 of centrifugal spray tower and the air stream outlet connection air-introduced machine 14 of rightmost side separator.
As shown in the figure, separator of the present invention arranges two separators, primary cyclone 10 and secondary cyclone 12, wherein: primary cyclone gas feed 10-1 is communicated with the mixed airflow outlet of centrifugal spray tower, and primary cyclone gas vent 10-2 is communicated with the collector of centrifugal spray tower bottom by one-level screw feeder 11; Secondary cyclone gas feed 12-1 is communicated with primary cyclone mixed airflow outlet 10-3, and secondary cyclone gas vent 12-2 is communicated with the collector of tubular drier by deuterostrophies feeding machine 13; Secondary cyclone mixed airflow outlet 12-3 is communicated with air-introduced machine 14.
The whole outsourcings of centrifugal spray tower in the present invention, separator, screw feeder, air-introduced machine and other all devices and assembly obtain.
Operation principle of the present invention is:
1) material (ethoxylated alkyl sulfates) A, by after charging aperture and feed arrangement, entering centrifugal spray tower, the high speed atomizer of centrifugal spray tower is the material centrifugal atomizing, the material after atomization be divested part moisture and flow into along the tower wall in the collector of centrifugal spray tower bottom after dry air C contacts;
2) when material is centrifuged atomization, the centrifugal mixed airflow produced in centrifugal spray tower passes through respectively the centrifugation of primary cyclone and secondary cyclone, and the material after separation exports in the collector of centrifugal spray tower; The tail gas D that the secondary cyclone air stream outlet is discharged is by emptying after air-introduced machine;
3) material in collector is tested; The content of Ruo diox meet standard by material by drawing mechanism and discharging opening after output (as shown by arrow B); The content overproof of Ruo diox, send into temporary tank by material by the feeding pneumatic operated valve and preserve, so that the material will keep in tank by feeding back device when subsequent production in returns to charging aperture, starts again to produce.
Embodiment mono-
The first step, first in and material (ethoxylated alkyl sulfates), then start centrifugal spray tower; The rotating speed of centrifugal spray tower is 12000 ± 100rpm, and the temperature of dry air is 50 ± 2 ℃, and the flow of dry air is 3000 ± 50m
3/ h;
Second step, material is dropped in feed arrangement; Feed arrangement is sent into material in centrifugal spray tower and is sloughed diox, and the material of sloughing diox is concentrated in the bottom of centrifugal spray tower; Separator carries out centrifugation to the centrifugal mixed airflow produced in centrifugal spray tower simultaneously, and the material obtained after separation also is concentrated in the bottom of centrifugal spray tower; The liquid level of centrifugal spray tower bottom should remain between 40～50cm;
The material of the 3rd step, check centrifugal spray tower bottom;
The content of Ruo diox meets standard, exports material to outside finished product storage tank by drawing mechanism and discharging opening; Now product Zhong diox content is about 22mg/kg;
The content overproof of Ruo diox, send material into temporary tank and preserve, and then material sent in charging aperture again by feeding back device, repeats the operation of the first step.
Embodiment bis-
The first step, first in and material (ethoxylated alkyl sulfates), then start centrifugal spray tower; The rotating speed of centrifugal spray tower is 8000 ± 100rpm, and the temperature of dry air is 35 ± 2 ℃, and the flow of dry air is 4000 ± 50m
3/ h;
Second step, material is dropped in feed arrangement; Feed arrangement is sent into material in centrifugal spray tower and is sloughed diox, and the material of sloughing diox is concentrated in the bottom of centrifugal spray tower; Separator carries out centrifugation to the centrifugal mixed airflow produced in centrifugal spray tower simultaneously, and the material obtained after separation also is concentrated in the bottom of centrifugal spray tower; The liquid level of centrifugal spray tower bottom should remain between 30～60cm;
The material of the 3rd step, check centrifugal spray tower bottom;
The content of Ruo diox meets standard, exports material to outside finished product storage tank by drawing mechanism and discharging opening; Now product Zhong diox content is about 15mg/kg;
The content overproof of Ruo diox, send material into temporary tank and preserve, and then material sent in charging aperture again by feeding back device, repeats the operation of the first step.
Embodiment tri-
The first step, first in and material (ethoxylated alkyl sulfates), then start centrifugal spray tower; The rotating speed of centrifugal spray tower is 10000 ± 100rpm, and the temperature of dry air is 55 ± 2 ℃, and the flow of dry air is 6000 ± 50m
3/ h;
Second step, material is dropped in feed arrangement; Feed arrangement is sent into material in centrifugal spray tower and is sloughed diox, and the material of sloughing diox is concentrated in the bottom of centrifugal spray tower; Separator carries out centrifugation to the centrifugal mixed airflow produced in centrifugal spray tower simultaneously, and the material obtained after separation also is concentrated in the bottom of centrifugal spray tower; The liquid level of centrifugal spray tower bottom should remain between 40～80cm;
The material of the 3rd step, check centrifugal spray tower bottom;
The content of Ruo diox meets standard, exports material to outside finished product storage tank by drawing mechanism and discharging opening; Now product Zhong diox content is about 10mg/kg;
The content overproof of Ruo diox, send material into temporary tank and preserve, and then material sent in charging aperture again by feeding back device, repeats the operation of the first step.
Embodiment tetra-
The first step, first in and material (ethoxylated alkyl sulfates), then start centrifugal spray tower; The rotating speed of centrifugal spray tower is 15000 ± 100rpm, and the temperature of dry air is 65 ± 2 ℃, and the flow of dry air is 5000 ± 50m
3/ h;
Second step, material is dropped in feed arrangement; Feed arrangement is sent into material in centrifugal spray tower and is sloughed diox, and the material of sloughing diox is concentrated in the bottom of centrifugal spray tower; Separator carries out centrifugation to the centrifugal mixed airflow produced in centrifugal spray tower simultaneously, and the material obtained after separation also is concentrated in the bottom of centrifugal spray tower; The liquid level of centrifugal spray tower bottom should remain between 30～80cm;
The material of the 3rd step, check centrifugal spray tower bottom;
The content of Ruo diox meets standard, exports material to outside finished product storage tank by drawing mechanism and discharging opening; Now product Zhong diox content is about 5mg/kg;
The content overproof of Ruo diox, send material into temporary tank and preserve, and then material sent in charging aperture again by feeding back device, repeats the operation of the first step.
Claims (5)
1. the centrifugal spray of an ethoxylated alkyl sulfates takes off the diox device, it is characterized in that: this device comprises charging aperture (1), feed arrangement, centrifugal spray tower (3), drawing mechanism and the discharging opening (5) connected successively by pipeline, and by pipeline, centrifugal spray tower is reclaimed to the retracting device that the material exported is transported to charging aperture;
In described centrifugal spray tower, material inlet (3-1) is communicated with feed arrangement, and air inlet (3-2) passes into dry air, and product outlet (3-3) is communicated with drawing mechanism, reclaims outlet (3-4) and is communicated with retracting device;
Described retracting device comprises the feeding pneumatic operated valve (6) be communicated with between centrifugal spray tower and charging aperture successively, temporary tank (7), feed back pneumatic operated valve (9-1) and feed back measuring pump (8-2);
Described feed arrangement comprises charging pneumatic operated valve (2-1) and the charging measuring pump (2-2) that series connection is connected;
Described drawing mechanism comprises discharging pneumatic operated valve (4-1) and the discharging measuring pump (4-2) that series connection is connected.
2. the centrifugal spray Tuo diox device of a kind of ethoxylated alkyl sulfates according to claim 1, it is characterized in that: described centrifugal spray tower also is being communicated with the separator be in series by least two separators.
3. the centrifugal spray Tuo diox device of a kind of ethoxylated alkyl sulfates according to claim 2, it is characterized in that: in described separator, the airflow inlet of each separator is communicated with the air stream outlet that is positioned at its left side separator, and the delivery outlet of each separator all is communicated with the collector (17) of centrifugal spray tower bottom by corresponding screw feeder; The airflow inlet of leftmost side separator is communicated with the mixed airflow outlet (3-5) of centrifugal spray tower and the air stream outlet of rightmost side separator is communicated with air-introduced machine (14).
4. the centrifugal spray Tuo diox device of a kind of ethoxylated alkyl sulfates according to claim 3 is characterized in that: the mixed airflow outlet (3-5) in described collector, and higher than the bottom 100～150cm of collector.
5. the centrifugal spray Tuo diox device of a kind of ethoxylated alkyl sulfates according to claim 4, it is characterized in that: the temperature of described dry air is 30～80 ℃, flow is 1000～10000m
3/ h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310432173.6A CN103480163B (en) | 2013-09-22 | 2013-09-22 | A kind of centrifugal spraying Tuo diox device of ethoxylated alkyl sulfates |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310432173.6A CN103480163B (en) | 2013-09-22 | 2013-09-22 | A kind of centrifugal spraying Tuo diox device of ethoxylated alkyl sulfates |
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| CN103480163B CN103480163B (en) | 2015-09-09 |
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|---|---|---|---|---|
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| CN103012220A (en) * | 2012-12-17 | 2013-04-03 | 嘉兴赞宇科技有限公司 | Method for preparing powdery Alpha-olefin sulfonate and preparation device |
| CN203540086U (en) * | 2013-09-22 | 2014-04-16 | 浙江赞宇科技股份有限公司 | Device for removing dioxane of ethoxylated alkyl sulfate by centrifugal spraying |
-
2013
- 2013-09-22 CN CN201310432173.6A patent/CN103480163B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101690875A (en) * | 2009-10-19 | 2010-04-07 | 浙江赞宇科技股份有限公司 | Technology for producing fatty alcohol polyethyleneglycol ether sulfate with low dioxane content by continuous vacuum tube type neutralization |
| CN103012220A (en) * | 2012-12-17 | 2013-04-03 | 嘉兴赞宇科技有限公司 | Method for preparing powdery Alpha-olefin sulfonate and preparation device |
| CN203540086U (en) * | 2013-09-22 | 2014-04-16 | 浙江赞宇科技股份有限公司 | Device for removing dioxane of ethoxylated alkyl sulfate by centrifugal spraying |
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