CN201770493U - Glauber salt crystallizing device based on acid bath flash vaporization process - Google Patents
Glauber salt crystallizing device based on acid bath flash vaporization process Download PDFInfo
- Publication number
- CN201770493U CN201770493U CN2010201879244U CN201020187924U CN201770493U CN 201770493 U CN201770493 U CN 201770493U CN 2010201879244 U CN2010201879244 U CN 2010201879244U CN 201020187924 U CN201020187924 U CN 201020187924U CN 201770493 U CN201770493 U CN 201770493U
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- acid
- crystallizer
- acid bath
- flash vaporization
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
- C01D5/16—Purification
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D5/00—Sulfates or sulfites of sodium, potassium or alkali metals in general
- C01D5/18—Dehydration
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- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model discloses a glauber salt crystallizing device based on an acid bath flash vaporization process, which aims to improve the conventional acid bath flash vaporization device. Chemical reaction by-product moisture and sodium sulfate content are added into the acid bath of a chemical fiber factory during the cycle use of the acid bath, and are necessary to be separated from the acid bath. In the prior art, the separations of moisture and sodium sulfate are carried out step by step: firstly, the moisture is separated by concentrating the acid bath through a flash vaporization device; secondly, the concentrated acid bath is frozen and crystallized into a salt cake; and finally, the salt cake is hot melted, evaporated and crystallized, and then the glauber salt is obtained. However, in the utility model, a part or a large part of the flash vaporization chamber in the flash vaporization device is replaced by an evaporating crystallizer used for crystallization, and the proportion of the fed acid for flash vaporization is increased, so that the recycle acid reaches or approaches the saturation of sodium sulfate before entering the crystallizer in the flash vaporization device and is evaporated to crystallize and separate out the glauber salt after entering the evaporating crystallizer. Crystal and mother liquor, which are separated out in evaporation method, enter into a thickener to be thickened and are conveyed to a centrifuge for centrifugation and spray rinsing, and then are dried, so as to obtain the glauber salt product.
Description
Technical field
The utility model relates to the viscose fiber apparatus field, belongs to a kind of with the acid bath flash concentration device in the acid station, chemical fibre factory, be improved to can the direct crystallization Sodium sulfate anhydrous.min(99) not only concentrate but also the crystalline device.
Background technology
The acid bath of chemical fibre factory is used for solidifying of zehla, and in the zehla process of setting, acid bath is diluted, and has increased the sodium sulfate composition.The spent acid that spinning-drawing machine is discharged is bathed and will be reclaimed, recycle, and must moisture and the sodium sulfate that acid bath is increased in spinning process be separated.Existing technology is to concentrate acid bath with flash distillation plant, separates moisture, then subcooling is carried out in concentrated acid bath, and crystallization goes out saltcake.Saltcake is carried out hot melt, evaporation again, obtain Sodium sulfate anhydrous.min(99).The acid bath flash distillation plant of domestic and foreign current is to adopt to concentrate incrystallizable evaporation unit all.
Summary of the invention
Goal of the invention of the present utility model is, with a part or the most of flashing chamber in 11 flashing chambers in the existing acid bath flash distillation dress, change into and be fit to the evaporative crystallizer that crystallization is separated out, as flashing chamber V10, V11, V1, V2, V3, V4 outside flashing chamber V4～V9 are set at enrichment region, the flashing chamber after the V5 changes evaporative crystallizer into: V5J, V6J, V7J, V8J and V9J.Evaporative crystallizer can be anyly not stop up the crystallizer of handled easily such as circular form or growth form crystallizer.
Technical solution of the present utility model is achieved in that
A kind of crystallization Sodium sulfate anhydrous.min(99) device based on acid bath flash distillation flow process, this device is the improvement of acid bath flash distillation plant that existing viscose yarn is solidified, comprise preheater A1～A8, flashing chamber V1～V11 and heater H in the existing apparatus, it is characterized in that: flashing chamber V5～V9 is transformed into evaporative crystallizer V5J～V9J, wherein the secondary steam of evaporative crystallizer V5J outlet 100 links to each other with the steam inlet 101 of preheater A5, and its acid discharge mouth 102 is connected with the acid inlet 103 of described crystallizer V6J; The secondary steam of crystallizer V6J outlet 104 links to each other with the steam inlet 105 of preheater A6, and its acid discharge mouth 106 is connected with the acid inlet 107 of described crystallizer V7J; The secondary steam of crystallizer V7J outlet 108 links to each other with the steam inlet 109 of preheater A7, and its acid discharge mouth 110 is connected with the acid inlet 111 of described crystallizer V8J; The secondary steam of crystallizer V8J outlet 112 links to each other with the steam inlet 113 of preheater A8, and its acid discharge mouth 114 is connected with the acid inlet 115 of crystallizer V9J; The secondary steam of crystallizer V9J outlet 116 links to each other with the steam inlet 117 of condenser MK2, and its acid discharge mouth 118 links to each other with thickener downtake interface 119, and thickener links to each other with mashing pump JP by plasma discharge mouth 121; Also be provided with acid discharge overflow port 120 and/or clear liquor on the described thickener and go out acid mouthfuls 122, clear liquor goes out acid mouthfuls 122 and communicates with the acid inlet 123 of flashing chamber V10; And pass through recycle pump XP with eo-acid and participate in the flash distillation circulation.
Compared with prior art, technology of the present utility model changes to some extent: guaranteeing to improve the proportion of recycle acid under the constant substantially situation of flash distillation recycle acid total amount, reduce the saturated rate of evaporation of acid bath.Crystalline Sodium sulfate anhydrous.min(99) slurry and mother liquor are sent into the clarification thickener and are clarified and thickening, and the clarification acid bath can all enter the concentrated acid groove, also can partly participate in the flash distillation circulation.The Sodium sulfate anhydrous.min(99) slurry of thickening is sent into whizzer separating and dehydrating, washing, drying becomes product.
The utility model has the advantages that can the direct crystallization Sodium sulfate anhydrous.min(99), has save sodium chloride crystal, separation, hot melt, evaporative crystallization technique process, saves energy consumption and productive expense.
Description of drawings
The utility model drawings attached 2 width of cloth, wherein:
Fig. 1 is a main flow synoptic diagram of the present utility model;
Fig. 2 is the schema of existing flash distillation plant.
In Fig. 1: 1. preheater; 2. flashing chamber; 3. evaporative crystallizer; 4. well heater; 5. condenser; 6. recycle pump; 7. mashing pump; 8. thickener.
Embodiment
A kind of crystallization Sodium sulfate anhydrous.min(99) device based on acid bath flash distillation flow process as shown in Figure 2 is intended to change the part in the acid bath flash distillation plant or most of flashing chamber into evaporative crystallizer, and making its energy direct crystallization go out anhydrous sodium sulphate is Sodium sulfate anhydrous.min(99).Can change V5～V9 into evaporative crystallizer, V4 produced the saturated acid bath of sodium sulfate in the past, it is characterized in that: the secondary steam of V5J outlet 100 links to each other with the steam inlet 101 of preheater A5, and acid discharge mouth 102 is connected with the acid inlet 103 of crystallizer V6J; The secondary steam outlet 104 of crystallizer V6J links to each other with preheater A6 steam inlet 105, and the acid discharge overflow port 106 of V6J links to each other with V7J acid inlet 107; The secondary steam of V7J outlet 108 links to each other with the steam inlet 109 of preheater A7, and the acid discharge mouth 110 of V7J links to each other with the acid inlet 111 of V8J; The secondary steam of V8J outlet 112 links to each other with the preheater steam inlet 113 of A8; The acid discharge mouth 114 of V8J links to each other with the acid inlet 115 of V9J; The secondary steam of V9J outlet 116 links to each other with condenser MK2 steam inlet 117, and V9J acid discharge mouth 118 links to each other with thickener downtake interface 119; Thickener acid discharge overflow port 120 connects the mother liquor storage tank; If allow the partial crystallization mother liquor participate in the flash distillation circulation, can take over the supernatant liquid that inserts thickener by the acid inlet 123 of V10, the vacuum of utilizing V10 is from thickener inspiration clear liquor, the position of the overflow port 120 of thickener is higher than the depth of penetration of V10 valve tube, and crystalline mother solution preferentially enters V10, and the flash distillation circulation is provided, the concentrated acid groove is advanced in remaining overflow, the slurry of thickener thickening is sent whizzer separation, dehydration, washing, drying by plasma discharge mouth 121 to through mashing pump JP, becomes the Sodium sulfate anhydrous.min(99) product.
Claims (1)
1. crystallization Sodium sulfate anhydrous.min(99) device based on acid bath flash distillation flow process, this device is the improvement of acid bath flash distillation plant that existing viscose yarn is solidified, comprise preheater A1～A8, flashing chamber V1～V11 and heater H in the existing apparatus, it is characterized in that: flashing chamber V5～V9 is transformed into evaporative crystallizer V5J～V9J, wherein the secondary steam of evaporative crystallizer V5J outlet 100 links to each other with the steam inlet (101) of preheater A5, and its acid discharge mouth (102) is connected with the acid inlet (103) of described crystallizer V6J; The secondary steam outlet (104) of crystallizer V6J links to each other with the steam inlet (105) of preheater A6, and its acid discharge mouth (106) is connected with the acid inlet (107) of described crystallizer V7J; The secondary steam outlet (108) of crystallizer V7J links to each other with the steam inlet (109) of preheater A7, and its acid discharge mouth (110) is connected with the acid inlet (111) of described crystallizer V8J; The secondary steam outlet (112) of crystallizer V8J links to each other with the steam inlet (113) of preheater A8, and its acid discharge mouth (114) is connected with the acid inlet (115) of crystallizer V9J; The secondary steam outlet (116) of crystallizer V9J links to each other with the steam inlet (117) of condenser MK2, and its acid discharge mouth (118) links to each other with thickener downtake interface (119), and thickener links to each other with mashing pump JP by plasma discharge mouth (121); Also be provided with acid discharge overflow port (120) and/or clear liquor on the described thickener and go out acid mouthful (122), clear liquor goes out acid mouthful (122) and communicates with the acid inlet (123) of flashing chamber V10; And pass through recycle pump XP with eo-acid and participate in the flash distillation circulation.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201879244U CN201770493U (en) | 2010-05-10 | 2010-05-10 | Glauber salt crystallizing device based on acid bath flash vaporization process |
| PCT/CN2011/071592 WO2011140855A1 (en) | 2010-05-10 | 2011-03-07 | Process for directly obtaining anhydrous sodium sulfate by flash evaporating and crystallizing and apparatus thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201879244U CN201770493U (en) | 2010-05-10 | 2010-05-10 | Glauber salt crystallizing device based on acid bath flash vaporization process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201770493U true CN201770493U (en) | 2011-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201879244U Expired - Lifetime CN201770493U (en) | 2010-05-10 | 2010-05-10 | Glauber salt crystallizing device based on acid bath flash vaporization process |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN201770493U (en) |
| WO (1) | WO2011140855A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168326A (en) * | 2011-03-24 | 2011-08-31 | 南通三圣石墨设备科技股份有限公司 | Efficient and energy-saving flash evaporation method for viscose acid bath system and special device |
| CN103241748A (en) * | 2013-04-27 | 2013-08-14 | 许达人 | Process method for preparing anhydrous sodium sulphate based on flash vaporization crystallization of acid bath |
| CN103510166A (en) * | 2012-06-20 | 2014-01-15 | 杭州奥通科技有限公司 | High wet modulus viscose fiber coagulating bath processing assembly line |
| CN104628016A (en) * | 2015-01-29 | 2015-05-20 | 中盐金坛盐化有限责任公司 | High-nitrate mother solution nitrate coproduction apparatus and technique |
| CN104925834A (en) * | 2015-06-03 | 2015-09-23 | 郸城县凯杰科技有限公司 | Processing technology for producing sodium sulphate through mirabilite water |
| CN110330039A (en) * | 2019-07-16 | 2019-10-15 | 南通三圣石墨设备科技股份有限公司 | The production system and production technology of anhydrous sodium sulphate are continuously produced in a kind of acid bath |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1043636C (en) * | 1994-08-11 | 1999-06-16 | 许达人 | Concentration nitre extracting technology by acid bath one-step method |
| CN2227513Y (en) * | 1995-05-09 | 1996-05-22 | 许达人 | Graphite block hole-type forced circulating acid bath evaporator |
| SE9603972D0 (en) * | 1996-10-31 | 1996-10-31 | Kvaerner Pulping Tech | Process for making ash consisting mainly of sodium sulphate from a soda boiler |
| CN101306260B (en) * | 2007-07-12 | 2012-02-22 | 项公浩 | Multifunctional multiple-effect automatic continuous evaporative crystallization technique and crystallization device |
| CN201195059Y (en) * | 2008-04-08 | 2009-02-18 | 任红兵 | Vacuum flash evaporation crystallizer |
| CN100545091C (en) * | 2008-04-10 | 2009-09-30 | 湖南新澧化工有限公司 | A kind of production method of high-purity big particle industrial anhydrous sodium sulfate |
| CN101391155B (en) * | 2008-10-22 | 2010-06-09 | 大连理工大学 | Efficient crystallization device |
-
2010
- 2010-05-10 CN CN2010201879244U patent/CN201770493U/en not_active Expired - Lifetime
-
2011
- 2011-03-07 WO PCT/CN2011/071592 patent/WO2011140855A1/en active Application Filing
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168326A (en) * | 2011-03-24 | 2011-08-31 | 南通三圣石墨设备科技股份有限公司 | Efficient and energy-saving flash evaporation method for viscose acid bath system and special device |
| CN102168326B (en) * | 2011-03-24 | 2012-08-22 | 南通三圣石墨设备科技股份有限公司 | Efficient and energy-saving flash evaporation method for viscose acid bath system and special device |
| CN103510166A (en) * | 2012-06-20 | 2014-01-15 | 杭州奥通科技有限公司 | High wet modulus viscose fiber coagulating bath processing assembly line |
| CN103510166B (en) * | 2012-06-20 | 2016-01-20 | 杭州奥通科技有限公司 | Koplon coagulating bath process streamline |
| CN103241748A (en) * | 2013-04-27 | 2013-08-14 | 许达人 | Process method for preparing anhydrous sodium sulphate based on flash vaporization crystallization of acid bath |
| CN104628016A (en) * | 2015-01-29 | 2015-05-20 | 中盐金坛盐化有限责任公司 | High-nitrate mother solution nitrate coproduction apparatus and technique |
| CN104925834A (en) * | 2015-06-03 | 2015-09-23 | 郸城县凯杰科技有限公司 | Processing technology for producing sodium sulphate through mirabilite water |
| CN110330039A (en) * | 2019-07-16 | 2019-10-15 | 南通三圣石墨设备科技股份有限公司 | The production system and production technology of anhydrous sodium sulphate are continuously produced in a kind of acid bath |
| CN110330039B (en) * | 2019-07-16 | 2021-05-07 | 南通三圣石墨设备科技股份有限公司 | Production system and production process for continuously preparing anhydrous sodium sulphate by acid bath |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011140855A1 (en) | 2011-11-17 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Granted publication date: 20110323 |
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| CX01 | Expiry of patent term |