CN203540086U - Device for removing dioxane of ethoxylated alkyl sulfate by centrifugal spraying - Google Patents
Device for removing dioxane of ethoxylated alkyl sulfate by centrifugal spraying Download PDFInfo
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- CN203540086U CN203540086U CN201320589554.0U CN201320589554U CN203540086U CN 203540086 U CN203540086 U CN 203540086U CN 201320589554 U CN201320589554 U CN 201320589554U CN 203540086 U CN203540086 U CN 203540086U
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- centrifugal spray
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- 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
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- 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
- Y02P20/50—Improvements relating to the production of bulk chemicals
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Abstract
The utility model discloses a device for removing dioxane of ethoxylated alkyl sulfate by centrifugal spraying and aims at providing a device with characteristics of high removing efficiency of dioxane, low energy consumption, easy control and stable operation. According to the technical scheme, the device for removing dioxane of ethoxylated alkyl sulfate by centrifugal spraying comprises a feeding port, a feeding device, a centrifugal spraying tower, a discharging device, a discharging port and a recovering device, wherein the feeding port, the feeding device, the centrifugal spraying tower, the discharging device and the discharging port are connected in sequence; the recovering device conveys materials of a recovering outlet of the spraying tower to the feeding port by a pipeline; in the centrifugal spraying tower, a material inlet is communicated with the feeding device, dry air is introduced into a gas inlet, a finished-product outlet is communicated with the discharging device, and the recovering outlet is communicated with the recovering device; the recovering device comprises a feeding pneumatic valve, a temporary storage tank, a returning pneumatic valve and a returning metering pump which are communicated between the centrifugal spraying tower and the feeding port in sequence; the feeding device comprises a feeding pneumatic valve and a feeding metering pump which are communicated in series; the discharging device comprises a discharging pneumatic valve and a discharging metering pump which are communicated in series.
Description
Technical field
The utility model 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 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 " decoquinateization reaction " of oxirane, produce a certain amount of 1,4-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 micro-virus kind material, irritant to skin, mucous membrane, have chemical carcinogenesis risk, 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 raw materials for production component.
The report that detects 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 manufacturer, have used the focus of enterprise and quality supervision department.
Australia health bureau (NICNAS) in the assessment technology file of Dui diox, advise the general consumer goods in be controlled at≤100mg/kg of diox content.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.In the < < cosmetics health standard > > of China's issue in 2007, classify diox as banned substance, in new AES standard GB/T/T 13529, increase regulation diox are limited the quantity of as 100mg/kg.Enterprise very pays close attention to diox in AES both at home and abroad, and a lot of daily use chemicals are applied the residual quantity that enterprise has all clearly stipulated AES Zhong diox, require raw material Zhong diox to limit the quantity of and are 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 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 to increase a procedure and equipment investment newly larger.
Gondola Ballestra company has designed special vacuum neutralized system, and in N-process, Dui diox removes.Its advantage is: in neutralized system, complete neutralization and remove diox, energy consumption is lower.Its shortcoming is: equipment and control are had relatively high expectations, and system is unstable, regulates difficulty large.
In the patent of Zhejiang Jilida Chemical Co., Ltd-a kind of production of ethoxylated alkyl sulfate, remove the technique of diox, 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, under heating, condition of negative pressure, after Shi diox and water azeotropic, from product, remove.
The de-diox device and method of injecting type of the patent of Hu'nan Licheng Industrial Co., Ltd.-a kind of ethoxylated alkyl sulfates, adopts material is ejected in 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 heater heating before entering vacuum drying cabinet, and energy consumption is larger.
Utility model content
The purpose of this utility model is the deficiency overcoming in above-mentioned background technology, and a kind of centrifugal spray Tuo diox device of ethoxylated alkyl sulfates is provided, and this device should have that diox removal efficiency is high, energy consumption is low, be easy to control and stable feature.
The technical solution of the utility model 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 connecting successively by pipeline, and by pipeline, centrifugal spray tower is reclaimed to the retracting device that the material exporting 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 being 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 is also being communicated with the separator being in series by least two separators.
In described separator, the airflow inlet connection of each separator is positioned at its left side air stream outlet of separator and the delivery outlet of each separator is all 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 beneficial effects of the utility model are:
1, in the utility model, be provided with centrifugal spray tower, 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 utility model material end to end and material during start-stop car in process of production, can squeeze in the temporary tank of retracting device and preserve, and can reenter in production process and again remove diox, has greatly promoted the utilization rate of material;
3, centrifugal spray tower of the present utility model 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 utility model is used will neutralize 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 improving material atomization, further add the removal efficiency of strong diox;
5, all devices of the present utility model are ripe prior art, can obtain by outsourcing, make simple in structure and manufacture facility, can effectively reduce manufacturing cost; The utility model also has advantages of stable and is easy to control simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below in conjunction with Figure of description, the utility model is described in further detail, but the utility model 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 by pipeline, connect successively, 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 drier top is high speed centrifugal atomization device), the cavity of collector 17(centrifugal spray tower bottom that is positioned at centrifugal spray tower bottom is as collector); The working speed of high speed atomizer is 5000～20000rpm; In collector, be provided with mixed airflow outlet 3-5 and liquid level gauge (omitting in figure), 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 is also 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 its left side air stream outlet of 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 utility model 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, 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 utility model, separator, screw feeder, air-introduced machine and other all devices and assembly obtain.
Operation principle of the present utility model is:
1) material (ethoxylated alkyl sulfates) A, by entering centrifugal spray tower after charging aperture and feed arrangement, the high speed atomizer of centrifugal spray tower is by material centrifugal atomizing, and the material after atomization is divested part moisture and along tower wall, flow in the collector of centrifugal spray tower bottom after contacting with dry air C;
2) when material is centrifuged atomization, the centrifugal mixed airflow producing 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 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, sends into temporary tank by material by feeding pneumatic operated valve and preserves, to the material in temporary tank is returned to charging aperture by feeding back device when subsequent production, 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 producing in centrifugal spray tower simultaneously, and the material obtaining after separation is also 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, by drawing mechanism and discharging opening, exports material to outside finished product storage tank; Now product Zhong diox content is about 22mg/kg;
The content overproof of Ruo diox, sends material into temporary tank and preserves, and then material is 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 producing in centrifugal spray tower simultaneously, and the material obtaining after separation is also 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, by drawing mechanism and discharging opening, exports material to outside finished product storage tank; Now product Zhong diox content is about 15mg/kg;
The content overproof of Ruo diox, sends material into temporary tank and preserves, and then material is 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 producing in centrifugal spray tower simultaneously, and the material obtaining after separation is also 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, by drawing mechanism and discharging opening, exports material to outside finished product storage tank; Now product Zhong diox content is about 10mg/kg;
The content overproof of Ruo diox, sends material into temporary tank and preserves, and then material is 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 producing in centrifugal spray tower simultaneously, and the material obtaining after separation is also 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, by drawing mechanism and discharging opening, exports material to outside finished product storage tank; Now product Zhong diox content is about 5mg/kg;
The content overproof of Ruo diox, sends material into temporary tank and preserves, and then material is 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 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) connecting successively by pipeline, and by pipeline, centrifugal spray tower is reclaimed to the retracting device that the material exporting 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) being 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, is characterized in that: described centrifugal spray tower is also being communicated with the separator being 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 is all 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 in described collector exports (3-5), 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, is characterized in that: the temperature of described dry air is 30～80 ℃, and flow is 1000～10000m
3/ h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320589554.0U CN203540086U (en) | 2013-09-22 | 2013-09-22 | Device for removing dioxane of ethoxylated alkyl sulfate by centrifugal spraying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320589554.0U CN203540086U (en) | 2013-09-22 | 2013-09-22 | Device for removing dioxane of ethoxylated alkyl sulfate by centrifugal spraying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203540086U true CN203540086U (en) | 2014-04-16 |
Family
ID=50458256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320589554.0U Withdrawn - After Issue CN203540086U (en) | 2013-09-22 | 2013-09-22 | Device for removing dioxane of ethoxylated alkyl sulfate by centrifugal spraying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203540086U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480163A (en) * | 2013-09-22 | 2014-01-01 | 浙江赞宇科技股份有限公司 | Device for removing dioxane from ethoxylation alkyl sulfate through centrifugal spray |
-
2013
- 2013-09-22 CN CN201320589554.0U patent/CN203540086U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480163A (en) * | 2013-09-22 | 2014-01-01 | 浙江赞宇科技股份有限公司 | Device for removing dioxane from ethoxylation alkyl sulfate through centrifugal spray |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140416 Effective date of abandoning: 20150909 |
|
| RGAV | Abandon patent right to avoid regrant |