CN201971934U - Acid bath cooling crystallization device with plate type heat exchanger - Google Patents
Acid bath cooling crystallization device with plate type heat exchanger Download PDFInfo
- Publication number
- CN201971934U CN201971934U CN2011200420387U CN201120042038U CN201971934U CN 201971934 U CN201971934 U CN 201971934U CN 2011200420387 U CN2011200420387 U CN 2011200420387U CN 201120042038 U CN201120042038 U CN 201120042038U CN 201971934 U CN201971934 U CN 201971934U
- Authority
- CN
- China
- Prior art keywords
- interface
- cooling
- acid bath
- links
- heat exchanger
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model discloses an acid bath cooling crystallization device with a plate type heat exchanger, which greatly improves the prior art. High-efficiency and energy-saving continuous production and low-cost operation can be realized by adopting the acid-resistant plate type heat exchanger for cooling crystallization. The plate type heat exchanger is a mature heat exchanging device, but the plate type heat exchanger is not applied to a flash distillation plant due to limitation of traditional views. In fact, corrugations are pressed on a heat transfer surface of the plate type heat exchanger, and strong turbulence can be obtained at low speed, prevents blockage of crystallized substances and can also reduce scaling speed, which is verified by industrial tests. The acid bath cooling crystallization device adopts a two-stage cooling method, crystallization mother liquid is used as coolant for the first stage of cooling to realize pre-cooling for acid bath, simultaneously recycled crystallization mother liquid is also heated, cold caustic liquid is adopted as coolant for the second stage of cooling to realize cooling for acid bath, and mirabilite with water is crystallized. Compared with a vacuum crystallization device, the acid bath cooling crystallization device saves about 1.95 ton steam for producing each ton of mirabilite, reduces energy consumption of coolant by one-third, and reduces equipment cost by a half.
Description
Technical field
The utility model relates to viscose acetal fibre equipment, relates in particular to the improvement of chemical fibre factory's acid bath equipment of crystallisation by cooling.
Background technology
The acid bath crystallisation by cooling of chemical fibre industry is by cooling, reduces the solubility of sodium sulphate in acid bath, and sodium sulphate is come out with the morphological crystal of saltcake.The staple fibre acid bath requires to be cooled to 18 ℃, use all be the vacuum cooled crystallization apparatus; And the acid bath of special fibre is low owing to containing nitre, needs about 0 ℃ ability crystallisation by cooling.If use vacuum crystallization, 1 ton of saltcake of every crystallization needs 0.85 ton of steam, also needs a large amount of cold bucks; And if stir crystallisation by cooling with chuck because heat transfer efficiency is low, need tens of to stir coolers and carry out intermittently operated, the mode of production falls behind.And adopt plate type heat exchanger efficiently, because only 2.5～5 millimeters of the spacings between its heat-transfer area, people think always contain particle suspension within it portion certainly will produce obstruction, in addition at the direct crystallisation by cooling of heat-transfer area, therefore wall can be separated out the crystallization fouling because of cooling surely, and never the someone dares to attempt doing with acidproof plate type heat exchanger the equipment of crystallisation by cooling of acid bath.
Summary of the invention
Proposition of the present utility model is intended to adopt acidproof plate type heat exchanger forecooler to replace existing acid bath vacuum crystallization device and acid bath chuck equipment of crystallisation by cooling improves existing flash distillation plant, in the hope of realizing high-efficiency and continuous production and energy saving purposes.
Technical solution of the present utility model is achieved in that
A kind of acid bath equipment of crystallisation by cooling, comprise thickener, centrifuge, separation mother liquor tank and mother liquor pump, it is characterized in that: also comprise board-like forecooler and board-like cooler crystallizer, the interface 101 of forecooler wherein links to each other with the acid bath inlet tube, interface 102 links to each other with the acid bath outlet, interface 103 links to each other with the crystalline mother solution inlet tube, and interface 104 links to each other with the crystalline mother solution outlet; The interface 105 of board-like cooler crystallizer links to each other with the acid bath outlet that interface 102 from forecooler picks out, interface 106 links to each other with the crystallisation by cooling suspension pipe that leads to thickener, interface 107 links to each other with the inlet tube of cold buck and/or cool brine, and interface 108 links to each other with the return pipe of cold buck and/or cool brine; Crystallisation by cooling suspension from interface 106 discharges, enter the thickener thickening, the interface 109 of thickener bottom is connected with slurry pipe, leads to the saltcake centrifuge and separates saltcake, separate mother liquor by mother liquor tank and mother liquor pump blowback thickener, the overfall 110 of thickener links to each other with forecooler 1 interface 103.
Compared with prior art, advantage of the present utility model is apparent, mainly show and broken through traditional concept, verified by industrial mode the main flow process of existing flash distillation plant is carried out improved reasonability and possibility, be the energy-saving and cost-reducing new way of having opened up of industrial installation.
Description of drawings
The utility model drawings attached 1 width of cloth.Among the figure:
1 is board-like forecooler, and 2 is board-like cooler crystallizer, and 3 is thickener, and 4 is the saltcake centrifuge, and 5 for separating mother liquor tank, and 6 is the mother liquor pump.
The specific embodiment
A kind of plate type heat exchanger acid bath equipment of crystallisation by cooling as shown in Figure 1, comprise thickener 3, centrifuge 4, mother liquor separating tank 5 and mother liquor pump 6, it is characterized in that: comprise board-like forecooler 1 and board-like cooler crystallizer 2, the suspension thickening that thickener 3 generates crystallisation by cooling, the saltcake slurry after the thickening are carried out sour nitre through centrifuge 4 and are separated.Separate mother liquor and enter mother liquor tank 5, flow into thickener 3 through mother liquor pump 6.Thickener 3 enters forecooler 1 at the crystalline mother solution of overfall overflow, the crystalline mother solution of forecooler 1 usefulness low temperature is made refrigerant, make acid bath before carrying out crystallisation by cooling, significantly reduce temperature, and the temperature of the crystalline mother solution that raise, can save the refrigerant energy more than 1/3rd, save the quantity of steam (saltcake per ton is saved about 1.1 tons of mother liquor intensification quantity of steam) that crystalline mother solution heats up and needs again.Process pipelines in the device is to connect like this: the interface 101 of forecooler 1 links to each other with the acid bath inlet tube, and interface 102 links to each other with the acid bath outlet, and interface 103 links to each other with the crystalline mother solution inlet tube, and interface 104 links to each other with the crystalline mother solution outlet.Crystallizer 2, its interface 105 links to each other with the acid bath outlet that picks out from forecooler 1 interface 102, interface 106 links to each other with the crystallisation by cooling suspension pipe that leads to thickener 3, and interface 107 links to each other with the inlet tube of cold buck (or cool brine), and interface 108 links to each other with the return pipe of cold buck (or cool brine).Crystallisation by cooling suspension from interface 106 discharges, enter thickener 3 thickenings, the interface 109 of thickener bottom is connected with slurry pipe, lead to saltcake centrifuge 4 and separate saltcake, separate mother liquor by mother liquor tank 5, mother liquor pump 6 blowback thickeners 3, the overfall 110 of thickener 3 links to each other with forecooler 1 interface 103.
Acid bath equipment of crystallisation by cooling of the present utility model, fully without steam, than existing vacuum crystallization device, saltcake per ton is saved 1.95 tons of steam, saves cold buck amount 1/3rd, and significantly reduces installation cost, and production process is continuous, cleaning is convenient.
Claims (1)
1. plate type heat exchanger acid bath equipment of crystallisation by cooling, comprise thickener (3), centrifuge (4), separate mother liquor tank (5) and mother liquor pump (6), it is characterized in that: also comprise the board-like forecooler (1) and the board-like cooler crystallizer (2) that constitute by acidproof plate type heat exchanger, forecooler wherein (1), its interface 101 links to each other with the acid bath inlet tube, interface 102 links to each other with the acid bath outlet, and interface 103 links to each other with the crystalline mother solution inlet tube, and interface 104 links to each other with the crystalline mother solution outlet; Board-like cooler crystallizer (2), its interface 105 links to each other with the acid bath outlet that picks out from forecooler (1) interface 102, interface 106 links to each other with the crystallisation by cooling suspension pipe that leads to thickener (3), interface 107 links to each other with the inlet tube of cold buck and/or cool brine, and interface 108 links to each other with the return pipe of cold buck and/or cool brine; Crystallisation by cooling suspension from interface 106 discharges, enter thickener (3) thickening, the interface 109 of thickener bottom is connected with slurry pipe, lead to saltcake centrifuge (4) and separate saltcake, separate mother liquor by mother liquor tank (5), mother liquor pump (6) blowback thickener (3), the overfall 110 of thickener 3 links to each other with forecooler 1 interface 103.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200420387U CN201971934U (en) | 2011-02-18 | 2011-02-18 | Acid bath cooling crystallization device with plate type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200420387U CN201971934U (en) | 2011-02-18 | 2011-02-18 | Acid bath cooling crystallization device with plate type heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201971934U true CN201971934U (en) | 2011-09-14 |
Family
ID=44577041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200420387U Expired - Fee Related CN201971934U (en) | 2011-02-18 | 2011-02-18 | Acid bath cooling crystallization device with plate type heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201971934U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109231603A (en) * | 2018-11-21 | 2019-01-18 | 江苏南大环保科技有限公司 | The method and device of cooperative disposal acid waste liquid in cellulose viscose manufacturing technique |
| CN109457325A (en) * | 2018-11-21 | 2019-03-12 | 江苏南大环保科技有限公司 | The method and apparatus of the recycling of viscose rayon spinning acid waste liquid sublevel and recycled |
| CN117146483A (en) * | 2023-09-06 | 2023-12-01 | 内蒙古伊东集团东兴化工有限责任公司 | Heat exchange device and heat exchange method of denitration refrigerating unit by substituted membrane method |
-
2011
- 2011-02-18 CN CN2011200420387U patent/CN201971934U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109231603A (en) * | 2018-11-21 | 2019-01-18 | 江苏南大环保科技有限公司 | The method and device of cooperative disposal acid waste liquid in cellulose viscose manufacturing technique |
| CN109457325A (en) * | 2018-11-21 | 2019-03-12 | 江苏南大环保科技有限公司 | The method and apparatus of the recycling of viscose rayon spinning acid waste liquid sublevel and recycled |
| CN117146483A (en) * | 2023-09-06 | 2023-12-01 | 内蒙古伊东集团东兴化工有限责任公司 | Heat exchange device and heat exchange method of denitration refrigerating unit by substituted membrane method |
| CN117146483B (en) * | 2023-09-06 | 2024-03-26 | 内蒙古伊东集团东兴化工有限责任公司 | Heat exchange device and heat exchange method of denitration refrigerating unit by substituted membrane method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201971934U (en) | Acid bath cooling crystallization device with plate type heat exchanger | |
| CN206444230U (en) | A kind of big flow forced circulation good antiscale property freezing and crystallizing device | |
| CN100590073C (en) | 'Non-combined-soda process' production process for producing soda, ammonium chloride with melamine tail gas | |
| CN102371080B (en) | Crystallizing method utilizing external circulation of crystal slurry | |
| CN102502718B (en) | Carbonization crystallization technology in process for producing sodium carbonate through Hou's method | |
| CN104692420A (en) | Potassium sulphate preparing method through thermal melting, refrigeration and double decomposition crystallization method | |
| CN107585778A (en) | Salting-out crystallizer outer loop cool-down method in procedure of producing soda under joint alkaline process | |
| CN108131966A (en) | Segmented tubulation heat sink in a kind of decomposer | |
| CN205187993U (en) | Circulation cooling water descaling apparatus | |
| CN215137034U (en) | Glauber's salt serialization cooling crystallization equipment | |
| CN102052880A (en) | Method for cleaning scales on plate type heat exchanger | |
| CN204251354U (en) | A kind of energy-saving copper sulfate crystal tripping device | |
| CN204319825U (en) | Equipment of crystallisation by cooling in a kind of refining oxalic acid production process | |
| CN102796019A (en) | Method for environment-friendly clean production of high-purity ethylene diamine tetraacetic acid (EDTA) | |
| CN108675333A (en) | The Continuous Cooling Crystallization technique of potassium alum is detached from lithium-containing solution | |
| CN210993085U (en) | Sodium sulfate freezing continuous crystallization device | |
| CN203582514U (en) | Aluminum oxide seed precipitation decomposition tank | |
| CN208525884U (en) | A kind of magnesium sulfate continuous crystallisation device | |
| CN210012598U (en) | Energy-saving hydrogen peroxide purification device | |
| CN209322482U (en) | Salting-out crystallization Outer Cooler liquefied ammonia cooling device in procedure of producing soda under joint alkaline process | |
| CN208049732U (en) | Sulfuric acid dilutes heat reclamation device | |
| CN208292675U (en) | A kind of black titanium liquid continuously post-processes process units | |
| CN219722015U (en) | Zinc sulfate crystallization thickener | |
| CN205917031U (en) | Phosphoric acid refrigeration cycle water vacuum device | |
| CN202032914U (en) | Cooling device for quickly cooling dilute black liquor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110914 Termination date: 20120218 |