CN202289546U - Adipic acid crystallization device - Google Patents
Adipic acid crystallization device Download PDFInfo
- Publication number
- CN202289546U CN202289546U CN2011204147223U CN201120414722U CN202289546U CN 202289546 U CN202289546 U CN 202289546U CN 2011204147223 U CN2011204147223 U CN 2011204147223U CN 201120414722 U CN201120414722 U CN 201120414722U CN 202289546 U CN202289546 U CN 202289546U
- Authority
- CN
- China
- Prior art keywords
- crystallization
- crystallisation chamber
- adipic acid
- connects
- chamber
- 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 - Lifetime
Links
Images
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model relates to an adipic acid crystallization device. The adipic acid crystallization device comprises a pre-crystallizer, a crystallizer, a surface condenser, a mixing condenser, a siphon and a vacuum pump, wherein the pre-crystallizer only is provided with a chamber; the main crystallizer is divided into twelve closed chambers which are isolated by stainless steel plates; the gas outlets of the 1st-8th crystallization chambers are connected with the surface condenser, the gas outlets of the other four crystallization chambers are connected with the mixing condenser through ejectors; and the device performs blanking through the siphon in the vacuum state, the vacuum system, siphon, surface condenser and mixing condenser are arranged to alleviate scabbing, increase the operation cycle of the device and reduce the output amount of sewage. By adopting the crystallization technology, the production capacity of the adipic acid production crystallization system can be greatly increased, energy can be saved and the environment can be protected.
Description
Technical field
The utility model relates to chemical plant installations, specifically refers to a kind of crystallization of adipic acid device.
Background technology
The crystallization of adipic acid device is the key equipment that adipic acid is produced, and prior art adopts the continuous crystalizer technology of Germany basically.This crystallizer is divided into 13 crystallisation chamber, and every chamber is provided with surface condenser.It is to utilize the adiabatic evaporation principle that the material cooling is separated out, and crystallizer relies on steam jet ejector and vavuum pump to form vacuum and under negative pressure, operates.Work material in the crystallization of adipic acid device contains a large amount of nitric acid, forms easily on the wall of crystal attached to crystallisation chamber and forms fouling, is difficult to clean.Therefore, need in the actual production process regularly to stop and clean completely, and the production maintenance difficulties is big.The cycle of operation of adipic acid plant is depended on the crystallization situation on each crystallization chamber wall basically.
In order to prolong the cycle of operation of adipic acid plant; And raising production capacity; Granted publication number discloses " a kind of crystallizer of producing adipic acid plant that is applicable to " for the utility model patent of CN2922986Y, and it is made up of material inlet, pre-crystallizer, primary crystallization device, mixing condenser; Described primary crystallization device is divided into nine confined chambers that formed at interval by corrosion resistant plate; And the rainbow suction tube is housed; The condenser of each chamber surface links to each other with mixing condenser through injector, and this installs through siphon material tube-surface condenser, blender and vacuum system structure, has reduced clear scar phenomenon; Reduce energy consumption simultaneously, improved the production capacity of crystal system.
Above-mentioned patent improves the production capacity of crystal system through prolonging the cycle of operation, and the raising of production capacity still receives certain restriction, can only satisfy the needs of producing 70000 tons of adipic acid plants per year.
Summary of the invention
The utility model technical problem to be solved is the present situation to prior art, provides a kind of and can increase substantially the crystallization of adipic acid device that adipic acid is produced crystal system production capacity.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: this crystallization of adipic acid device; Comprise pre-crystallizer, primary crystallization device and mixing condenser; It is characterized in that being provided with in the described primary crystallization device dividing plate primary crystallization device is divided into 12 separate crystallisation chamber, first crystallisation chamber to the, 12 crystallisation chamber that promptly set gradually by the material trend; Being provided with between the adjacent crystallisation chamber can be with the siphon pipe of mass transport to the adjacent downstream crystallisation chamber of upper reaches crystallization chamber, and each said crystallization chamber off-centre is provided with agitator; The gas vent of said pre-crystallizer and the gas vent of first crystallisation chamber to the, eight crystallisation chamber all are connected the gas access of surface condenser, and the gas vent of said surface condenser connects the gas access of mixing condenser; The gas vent of said mixing condenser connects emptying device through vavuum pump; The gas vent of the 9th crystallisation chamber to the 12 crystallisation chamber connects described mixing condenser through steam jet ejector; The charging aperture of said pre-crystallizer connects the treating material conveyance conduit, and the outlet of said pre-crystallizer connects the material inlet of said first crystallisation chamber; The material outlet of the 12 crystallisation chamber in said 12 crystallisation chamber connects upstream device.
Described primary crystallization device is a horizontal type structure, the mutual parallel longitudinal setting of described 12 crystallisation chamber.
Said agitator is near described siphon pipe setting.
In the above-mentioned scenarios, the cooling medium of said mixing condenser inlet connects water storage device through pump, and the outlet of said mixing condenser connects water storage device; The cooling medium pipeline of said mixing condenser, feed pipe and water storage device constitute an airtight circulatory system; And be provided with the heat exchanger that cooling medium is lowered the temperature between described mixing condenser and the described water storage device.
The gas vent of said mixing condenser connects described vavuum pump through injector, and, being provided with heat exchanger between said vavuum pump and the said emptying device, the liquid outlet of said heat exchanger connects described water storage device.
Compared with prior art; The utility model is divided into 12 chambers with the primary crystallization device; Indoor have corrosion resistant plate to be partitioned into confined chamber; The vacuum system that each chamber is furnished with eccentric stirring and siphon pipe and is made up of steam jet ejector and liquid-ring vacuum pump increases substantially the disposal ability of crystallizer, and its production capacity can satisfy produces adipic acid needs more than 160,000 tons per year; Simultaneously, this device is through siphon pipe punishment in advance under vacuum state, and can make scabs alleviates, and has improved the cycle of operation of equipment; Because mixing condenser has adopted closed-cycle system, do not produce sewage simultaneously, need not add fresh water yet, avoided the discharge of sewage; This crystallization apparatus not only makes crystal system production capacity increase substantially, energy-saving and environmental protection simultaneously.
Description of drawings
Fig. 1 is the planar structure sketch map of the utility model embodiment.
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in Figure 1, this crystallization of adipic acid device comprises:
Primary crystallization device 1 is horizontal type structure, is provided with first crystallisation chamber to the, 12 crystallisation chamber that polylith stainless steel separator 11 is divided into the primary crystallization device separate parallel longitudinal in it.The equal off-centre of each crystallization chamber is provided with agitator 12, and being provided with between the adjacent crystallisation chamber can be with the siphon pipe 13 of mass transport to the adjacent downstream crystallisation chamber of upper reaches crystallization chamber, and the agitator of each crystallization chamber is all near separately siphon pipe.
The position of agitator 12 is provided with near siphon pipe 13, helps supersaturated solution to the flowing of adjacent downstream crystallisation chamber, and eccentric stirring simultaneously can be avoided excessive turbulent flow and cause the wearing and tearing of intergranule.
Pre-crystallizer 2, its inlet connects material conveying pipe, and its outlet connects first crystallisation chamber.Pending adipic acid material is delivered to the 12 crystallisation chamber from first crystallisation chamber by siphon pipe successively in the primary crystallization device.
Mixing condenser in the present embodiment has three, and steam jet ejector has six.
The gas vent of pre-crystallizer and the gas vent of first crystallisation chamber to the, eight crystallisation chamber all are connected the gas access of surface condenser 3, and the gas vent of surface condenser 3 connects the gas access of second mixing condenser 42 through second injector 72; The gas vent of the 9th crystallisation chamber connects the gas access of first mixing condenser 41 through first steam jet ejector 71; The gas vent of the tenth crystallisation chamber connects the gas access of second mixing condenser 42 through second steam jet ejector 72; The gas vent of the 11 crystallisation chamber is through the gas access of the 3rd steam jet ejector 73 connections the 3rd mixing condenser 43, and the gas vent of the 12 crystallisation chamber connects second mixing condenser 42 through the 4th steam jet ejector 74; The gas vent of second mixing condenser 42 connects first cooler 14 through the 5th steam jet ejector 75, and cooled liquid returns water storage device 9, and the fixed gas that obtains after the cooling is delivered to emptying device 6 through the 6th steam jet ejector 76, liquid-ring vacuum pump 5.
The cooling medium inlet of each mixing condenser connects water storage device 9 through pump 8, and the cooling medium outlet of mixing condenser connects water storage device 9.The cooling medium pipeline of each mixing condenser, feed pipe and water storage device constitute an airtight circulatory system; And be provided with the heat exchanger 10 that cooling medium is lowered the temperature between mixing condenser 4 and the water storage device 9.
During work, temperature is about 85 ℃-95 ℃ adipic acid oxidation liquid and at first gets into and carry out adiabatic flash in the pre-crystallizer 2, and 12 crystallization chamber that get into successively then in the primary crystallization device are carried out the adiabatic evaporation crystallization.The supersaturated solution of material after each crystallization chamber crystallization gets into next crystallisation chamber through siphon pipe.Each crystallization chamber is provided with eccentric agitator, and the setting of eccentric agitator makes solution mobilely has a certain rules, has avoided excessive turbulent flow and causes the wearing and tearing of crystal grain.Along with material moves to the 12 crystallisation chamber by first crystallisation chamber, temperature of charge drops to about 30 ℃ by about 90 ℃, and adipic acid crystallizes out from solution with the form of crystal.The at first condensation in surface condenser of nitric acid vapor that each chamber produces; On-condensible gas again in the mixing condenser with closed cycle cool water shower cooling and absorbing; The crystallization of adipic acid process is accomplished under vacuum state, and the vacuum of each crystallization chamber relies on mixing condenser, steam jet ejector and liquid-ring vacuum pump to realize.
Claims (5)
1. crystallization of adipic acid device; Comprise pre-crystallizer, primary crystallization device and mixing condenser; It is characterized in that being provided with in the described primary crystallization device dividing plate primary crystallization device is divided into 12 separate crystallisation chamber, first crystallisation chamber to the, 12 crystallisation chamber that promptly set gradually by the material trend; Being provided with between the adjacent crystallisation chamber can be with the siphon pipe of mass transport to the adjacent downstream crystallisation chamber of upper reaches crystallization chamber, and each said crystallization chamber off-centre is provided with agitator; The gas vent of said pre-crystallizer and the gas vent of first crystallisation chamber to the, eight crystallisation chamber all are connected the gas access of surface condenser, and the gas vent of said surface condenser connects the gas access of mixing condenser; The gas vent of said mixing condenser connects emptying device through liquid-ring vacuum pump; The gas vent of the 9th crystallisation chamber to the 12 crystallisation chamber connects described mixing condenser through steam jet ejector; The charging aperture of said pre-crystallizer connects the treating material conveyance conduit, and the outlet of said pre-crystallizer connects the material inlet of said first crystallisation chamber; The material outlet of the 12 crystallisation chamber in said 12 crystallisation chamber connects upstream device.
2. crystallization of adipic acid device according to claim 1 is characterized in that described primary crystallization device is a horizontal type structure, the mutual parallel longitudinal setting of described 12 crystallisation chamber.
3. crystallization of adipic acid device according to claim 2 is characterized in that said agitator is near described siphon pipe setting.
4. according to claim 1,2 or 3 described crystallization of adipic acid devices, it is characterized in that the cooling medium inlet of said mixing condenser connects water storage device through pump, the outlet of said mixing condenser connects water storage device; The cooling medium pipeline of said mixing condenser, feed pipe and water storage device constitute an airtight circulatory system; And be provided with the heat exchanger that cooling medium is lowered the temperature between described mixing condenser and the described water storage device.
5. crystallization of adipic acid device according to claim 4; The gas vent that it is characterized in that said mixing condenser connects described vavuum pump through injector; And be provided with heat exchanger between said vavuum pump and the said emptying device, the liquid outlet of said heat exchanger connects described water storage device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204147223U CN202289546U (en) | 2011-10-26 | 2011-10-26 | Adipic acid crystallization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204147223U CN202289546U (en) | 2011-10-26 | 2011-10-26 | Adipic acid crystallization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202289546U true CN202289546U (en) | 2012-07-04 |
Family
ID=46358534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204147223U Expired - Lifetime CN202289546U (en) | 2011-10-26 | 2011-10-26 | Adipic acid crystallization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202289546U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104107818A (en) * | 2014-07-18 | 2014-10-22 | 中国天辰工程有限公司 | Mobile scar eliminating method of adipic acid crystallizer |
| CN105879424A (en) * | 2014-09-30 | 2016-08-24 | 海洲环保集团有限公司 | Continuous vacuum crystallization device with flash vaporization and cooling |
| CN112516618A (en) * | 2020-12-17 | 2021-03-19 | 重庆华峰化工有限公司 | Adipic acid crystallization system and online scar cleaning method thereof |
-
2011
- 2011-10-26 CN CN2011204147223U patent/CN202289546U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104107818A (en) * | 2014-07-18 | 2014-10-22 | 中国天辰工程有限公司 | Mobile scar eliminating method of adipic acid crystallizer |
| CN104107818B (en) * | 2014-07-18 | 2016-03-09 | 中国天辰工程有限公司 | A kind of clear scar method of movement of crystallization of adipic acid device |
| CN105879424A (en) * | 2014-09-30 | 2016-08-24 | 海洲环保集团有限公司 | Continuous vacuum crystallization device with flash vaporization and cooling |
| CN105879424B (en) * | 2014-09-30 | 2017-11-07 | 海洲环保集团有限公司 | Vacuum shwoot cooling continuous crystallisation device |
| CN112516618A (en) * | 2020-12-17 | 2021-03-19 | 重庆华峰化工有限公司 | Adipic acid crystallization system and online scar cleaning method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202304507U (en) | Heat exchange device for waste heat recovery of setting machine in textile printing and dyeing mill | |
| CN202289546U (en) | Adipic acid crystallization device | |
| CN103055525B (en) | Anti-blocking evaporation sedimentation chamber producing clean secondary steam | |
| CN108131966A (en) | Segmented tubulation heat sink in a kind of decomposer | |
| CN203829691U (en) | Liquid-gas linkage forced circulation hot pump low-temperature evaporation, concentration and crystallization device | |
| CN219462543U (en) | Novel rectifying device of fluoroethylene carbonate | |
| CN103185362A (en) | Low-position straight heating machine | |
| CN202542891U (en) | Evaporation crystallizer for crystallization of magnesium sulfate solution | |
| CN202844626U (en) | Cobalt sulfate crystal separating device | |
| CN203777697U (en) | Continuous crystallizing device with preheaters for ammonium molybdate production | |
| CN203577463U (en) | Treatment system for treating waste sulfuric acid produced after treatment of furnace gas | |
| CN102764518A (en) | Salt crystallizer | |
| CN203620609U (en) | Special device for manufacturing natural gas hydrate | |
| CN107702561A (en) | A kind of ecological circulation water-cooling system | |
| CN105457565A (en) | Airlift type loop reactor and method for preparing propylene/ethylene carbonate with airlift type loop reactor | |
| CN111481959A (en) | Crystallization external cooler circulating device and method in combined soda production process | |
| CN206793620U (en) | A kind of efficiently crystallization cooling device | |
| RU100203U1 (en) | SCREW HEAT EXCHANGER | |
| CN201926346U (en) | Plate heat exchanger | |
| CN2922986Y (en) | Crystallizer suitable for producing adipic acid device | |
| CN104474734A (en) | Alum cooling crystallization device | |
| CN205199501U (en) | Single cyandiamide exsolution system device of hydrolysising | |
| CN203370314U (en) | Adipic acid recovering crystallizer | |
| CN218106790U (en) | Plate-type falling film purification system | |
| CN220201512U (en) | Toluene autosegregation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CNCEC SEDIN NINGBO ENGINEERING CO., LTD. Free format text: FORMER NAME: NINGBO ENGINEERING CO., LTD, SECOND DESIGN INSTITUTE OF CHEMICAL INDUSTRY |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 315040 No. 999, Lane 1, sailing Road, hi tech Zone, Zhejiang, Ningbo Patentee after: Sedin Ningbo Engineering Co., Ltd. Patentee after: Huafeng Group Corp., Ltd. Address before: 315040 No. 999, Lane 1, sailing Road, hi tech Zone, Zhejiang, Ningbo Patentee before: Ningbo Engineering Co., Ltd, Second Design Institute of Chemical Industry Patentee before: Huafeng Group Corp., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180504 Address after: 315040 1 Lane 999 lane, Yang Fan Road, Ningbo, Zhejiang, 5-1, 5-2, 5-5, 5-6 Co-patentee after: Chongqing Huafeng Chemical Co., Ltd. Patentee after: Sedin Ningbo Engineering Co., Ltd. Address before: 315040 No. 999 lane, Yang Fan Road, Ningbo high tech Zone, Zhejiang, China 1 Co-patentee before: Huafeng Group Corp., Ltd. Patentee before: Sedin Ningbo Engineering Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120704 |