CN217058169U - Adipic acid drying system - Google Patents
Adipic acid drying system Download PDFInfo
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- CN217058169U CN217058169U CN202220250302.4U CN202220250302U CN217058169U CN 217058169 U CN217058169 U CN 217058169U CN 202220250302 U CN202220250302 U CN 202220250302U CN 217058169 U CN217058169 U CN 217058169U
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Abstract
The utility model discloses an adipic acid drying system, including fluidized bed dryer, first carrier gas processing unit and second carrier gas processing unit, during the pending material gets into the fluidized bed dryer, the casing inner chamber divide into drying zone and cooling space, and dry carrier gas and cooling carrier gas get into in the casing with the pending material contact, form the fluidization and carry out heat exchange with drying medium and cooling medium in proper order, cool off after the drying to realize continuous production. Meanwhile, the utility model discloses first carrier gas processing unit and second carrier gas processing unit have still been set up, dry carrier gas is handled through first carrier gas treatment component edulcoration, utilize the heater to heat the back and flow back to the drying zone, the cooling carrier gas carries out the edulcoration through second carrier gas treatment component and handles, utilize the second condenser condensation to flow back to the cooling zone after handling, energy utilization has effectively been improved, and the scrubbing tower among the prior art has been replaced, the production of a large amount of waste water has been avoided, and exhaust emission has been reduced, energy saving and environmental protection.
Description
Technical Field
The utility model relates to a material drying equipment and peripheral supporting facility technical field especially relate to an adipic acid drying system.
Background
Adipic acid is also called as adipic acid, is an important organic dibasic acid, can perform salt forming reaction, esterification reaction, amidation reaction and the like, and can be polycondensed with diamine or dihydric alcohol to form high molecular polymers and the like. Adipic acid is a dicarboxylic acid which has important significance in industry, and plays an important role in chemical production, organic synthesis industry, medicine, lubricant manufacturing and the like.
An internal heating fluidized bed drying technology is usually adopted in the adipic acid drying process, but the energy utilization efficiency is low in the existing adipic acid drying process, the tail gas air-carrying temperature of a drying area is as high as 85-95 ℃, and energy waste is caused by direct cooling, so that the energy consumption in the production process is high.
Therefore, how to change the current situation of low energy utilization rate in the adipic acid drying process in the prior art becomes a problem to be solved urgently by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an adipic acid drying system to solve the problem that above-mentioned prior art exists, improve energy utilization in the adipic acid drying process, it is energy-concerving and environment-protective.
In order to achieve the above purpose, the utility model provides a following scheme: the utility model provides an adipic acid drying system, include:
the fluidized bed dryer comprises a shell, wherein an inner cavity of the shell comprises a drying area and a cooling area which are communicated with each other, the shell is provided with a feed inlet, a first carrier gas inlet, a second carrier gas inlet, a first carrier gas outlet and a second carrier gas outlet, materials to be treated can enter the shell from the feed inlet, the feed inlet is communicated with the drying area, the first carrier gas inlet and the first carrier gas outlet are communicated with the drying area, the second carrier gas inlet and the second carrier gas outlet are communicated with the cooling area, the first carrier gas inlet is communicated with drying carrier gas, and the second carrier gas inlet is communicated with cooling carrier gas; the drying area is provided with a drying coil communicated with a drying medium, the cooling area is provided with a cooling coil communicated with a cooling medium, and the drying medium and the cooling medium can exchange heat with the material to be treated;
the first carrier gas treatment unit comprises a first carrier gas treatment component and a heater which are connected, the first carrier gas treatment component is communicated with the first carrier gas outlet, the first carrier gas treatment component can be used for removing impurities from the dry carrier gas, the heater can be used for heating the dry carrier gas, and the outlet of the heater is communicated with the first carrier gas inlet;
the second carrier gas processing unit comprises a second carrier gas processing component and a second condenser which are connected, the second carrier gas processing component is communicated with the second carrier gas outlet, the second carrier gas processing component can remove impurities from the cooling carrier gas, the second condenser can cool the cooling gas, and the outlet of the second condenser is communicated with the second carrier gas inlet.
Preferably, the first carrier gas treatment component comprises a first cyclone dust collector, a first bag-type dust collector, a first heat exchanger, a first condenser, a first demister and a first air blower, the first carrier gas outlet is communicated with the first cyclone dust collector, the gas outlet of the first cyclone dust collector is communicated with the first bag-type dust collector, the gas outlet of the first bag-type dust collector is communicated with the first heat exchanger, a first induced draft fan is arranged between the first carrier gas outlet and the first heat exchanger, the first heat exchanger can cool the dried carrier gas after dust removal, the first condenser can condense the dried carrier gas after temperature reduction, the dried carrier gas after condensation enters the first demister to be demisted, the dried carrier gas after demisting is refluxed into the first heat exchanger to be heated, and the dried carrier gas after being heated by the first heat exchanger is communicated with the heater, the drying carrier gas heated by the heater is communicated with the first carrier gas inlet by the aid of the first air blower, and solid outlets of the first cyclone dust collector and the first bag-type dust collector are communicated with the feed inlet.
Preferably, the second carrier gas treatment component comprises a second cyclone dust collector, a second bag-type dust collector, a second demister and a second air blower, the second carrier gas outlet is communicated with the second cyclone dust collector, the gas outlet of the second cyclone dust collector is communicated with the second bag-type dust collector, the gas outlet of the second bag-type dust collector is communicated with the second condenser, a second induced draft fan is arranged between the second induced draft fan and the second condenser, the cooling carrier gas subjected to condensation treatment by the second condenser enters the second demister, and the cooling carrier gas subjected to demisting treatment is communicated with the second carrier gas inlet through the second air blower.
Preferably, the cooling zone is connected with a dry material bin, and solid outlets of the second cyclone dust collector and the second bag-type dust collector are communicated with the dry material bin.
Preferably, the cooling coil includes first cooling coil and second cooling coil, first cooling coil and cooling water phase intercommunication, the second cooling coil is linked together with the refrigerated water, first cooling coil with the second cooling coil is followed the direction of delivery interval setting of pending material.
Preferably, a partition plate is arranged in the inner cavity of the shell, the partition plate divides the inner cavity of the shell into the drying area and the cooling area, and the partition plate is connected with the inner wall of the top of the shell.
Preferably, the material to be treated utilizes feeding screw conveyer with the feed inlet is linked together, first cyclone with the solid outlet of first sack cleaner utilize dry returning charge conveyer with the feed inlet is linked together, the drying zone still is connected with the returning charge lifting machine, dry returning charge conveyer with the returning charge lifting machine all communicates with returning charge screw conveyer, feeding screw conveyer with returning charge screw conveyer all is linked together with the biax mixer, the biax mixer with the feed inlet is linked together.
Preferably, the air inlet of the first blower is also in communication with the external environment by means of a filter.
Preferably, the second carrier gas inlet is also in communication with an external nitrogen source.
Preferably, the first carrier gas inlets correspond to the drying coils one by one, and a plurality of the first carrier gas inlets are arranged in parallel; the second carrier gas inlets correspond to the cooling coils one by one, and the second carrier gas inlets are arranged in parallel.
The utility model discloses for prior art gain following technological effect: the utility model discloses an adipic acid drying system, including the fluidized bed dryer, first carrier gas processing unit and second carrier gas processing unit, wherein, the fluidized bed dryer includes the casing, the inner chamber of casing is including the drying zone and the cooling zone that are linked together, the casing has the feed inlet, first carrier gas import, the import of second carrier gas, first carrier gas export and second carrier gas export, the material to be treated gets into in the casing by the feed inlet, the feed inlet is linked together with the drying zone, first carrier gas import and first carrier gas export all are linked together with the drying zone, second carrier gas import and second carrier gas export all are linked together with the cooling zone, first carrier gas import is linked together with dry carrier gas, the import of second carrier gas is linked together with cooling carrier gas; the drying area is provided with a drying coil which is communicated with a drying medium, the cooling area is provided with a cooling coil which is communicated with a cooling medium, and the drying medium and the cooling medium can generate heat exchange with the material to be treated; the first carrier gas processing unit comprises a first carrier gas processing component and a heater which are connected, the first carrier gas processing component is communicated with a first carrier gas outlet, the first carrier gas processing component can carry out impurity removal processing on the drying carrier gas, the heater can heat the drying carrier gas, and the outlet of the heater is communicated with a first carrier gas inlet; the second carrier gas processing unit comprises a second carrier gas processing component and a second condenser which are connected, the second carrier gas processing component is communicated with the second carrier gas outlet, the second carrier gas processing component can carry out impurity removal processing on cooling carrier gas, the second condenser can cool the cooling gas, and the outlet of the second condenser is communicated with the second carrier gas inlet.
The utility model discloses an adipic acid drying system, pending material get into the fluidized bed dryer, and the casing inner chamber divide into drying zone and cooling space, and dry carrier gas and cooling carrier gas get into in the casing with the pending material contact, form the fluidization and carry out heat exchange with drying medium and coolant in proper order, cool off after the drying to realize continuous production. Meanwhile, the utility model discloses first carrier gas processing unit and second carrier gas processing unit have still been set up, dry carrier gas is handled through first carrier gas treatment component edulcoration, utilize the heater to heat the back and flow back to the drying zone, the cooling carrier gas carries out the edulcoration through second carrier gas treatment component and handles, utilize the second condenser condensation to flow back to the cooling zone after handling, energy utilization has effectively been improved, and the scrubbing tower among the prior art has been replaced, the production of a large amount of waste water has been avoided, and exhaust emission has been reduced, energy saving and environmental protection.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of the adipic acid drying system of the present invention.
Wherein, 1 is a fluidized bed dryer, 2 is a shell, 3 is a drying zone, 4 is a cooling zone, 5 is a feed inlet, 6 is a first carrier gas inlet, 7 is a second carrier gas inlet, 8 is a first carrier gas outlet, 9 is a second carrier gas outlet, 10 is a drying coil, 11 is a cooling coil, 12 is a heater, 13 is a second condenser, 14 is a first cyclone dust collector, 15 is a first bag dust collector, 16 is a first heat exchanger, 17 is a first induced draft fan, 18 is a first condenser, 19 is a first demister, 20 is a first air blower, 21 is a second cyclone dust collector, 22 is a second bag dust collector, 23 is a second demister, 24 is a second air blower, 25 is a second induced draft fan, 26 is a drying bin, 27 is a partition plate, 28 is a feeding screw conveyor, 29 is a drying return conveyor, 30 is a return lifter, 31 is a return screw conveyor, 32 is a double-shaft mixer, and 33 is a filter.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing an adipic acid drying system to solve the problem that above-mentioned prior art exists, improve energy utilization in the adipic acid drying process, it is energy-concerving and environment-protective.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1, fig. 1 is a schematic diagram of an adipic acid drying system of the present invention.
The utility model provides an adipic acid drying system, including fluidized bed dryer 1, first carrier gas processing unit and second carrier gas processing unit, wherein, fluidized bed dryer 1 includes casing 2, the inner chamber of casing 2 is including drying zone 3 and the cooling zone 4 that are linked together, casing 2 has feed inlet 5, first carrier gas import 6, second carrier gas import 7, first carrier gas export 8 and second carrier gas export 9, the material to be handled can get into in casing 2 by feed inlet 5, feed inlet 5 is linked together with drying zone 3, first carrier gas import 6 and first carrier gas export 8 all are linked together with drying zone 3, second carrier gas import 7 and second carrier gas export 9 all are linked together with cooling zone 4, first carrier gas import 6 is linked together with drying carrier gas, second carrier gas import 7 is linked together with cooling carrier gas; the drying area 3 is provided with a drying coil 10, the drying coil 10 is communicated with a drying medium, the cooling area 4 is provided with a cooling coil 11, the cooling coil 11 is communicated with a cooling medium, and the drying medium and the cooling medium can generate heat exchange with the material to be treated; the first carrier gas treatment unit comprises a first carrier gas treatment component and a heater 12 which are connected, the first carrier gas treatment component is communicated with a first carrier gas outlet 8, the first carrier gas treatment component can carry out impurity removal treatment on dry carrier gas, the heater 12 can heat the dry carrier gas, and an outlet of the heater 12 is communicated with a first carrier gas inlet 6; the second carrier gas processing unit comprises a second carrier gas processing component and a second condenser 13 which are connected, the second carrier gas processing component is communicated with the second carrier gas outlet 9, the second carrier gas processing component can carry out impurity removal processing on cooling carrier gas, the second condenser 13 can cool the cooling gas, and the outlet of the second condenser 13 is communicated with the second carrier gas inlet 7.
The utility model discloses an adipic acid drying system, pending material get into fluidized bed dryer 1 in, 2 inner chambers of casing divide into drying zone 3 and cooling space 4, and dry carrier gas and cooling carrier gas contact with the pending material in getting into casing 2, form the fluidization and carry out heat exchange with drying medium and cooling medium in proper order, cool off after the drying to realize continuous production. Meanwhile, the utility model discloses first carrier gas processing unit and second carrier gas processing unit have still been set up, dry carrier gas is handled through first carrier gas treatment component edulcoration, utilize heater 12 to flow back to drying zone 3 after heating, the cooling carrier gas carries out edulcoration processing through second carrier gas treatment component, flow back to cooling zone 4 after utilizing the condensation of second condenser 13 to handle, energy utilization has effectively been improved, and the scrubbing tower among the prior art has been replaced, the production of a large amount of waste water has been avoided, and exhaust emissions has been reduced, energy saving and environment protection. It should be further noted that the first carrier gas inlet 6 and the second carrier gas inlet 7 are both disposed at the bottom of the housing 2 to ensure that the drying carrier gas and the cooling carrier gas can contact with the material to be treated to form a fluidized state, and the first carrier gas outlet 8 and the second carrier gas outlet 9 are disposed at the top of the housing 2 to prevent the drying carrier gas and the cooling carrier gas from directly flowing out, so as to ensure normal operation of the fluidized bed dryer 1.
Specifically, the first carrier gas treatment component comprises a first cyclone dust collector 14, a first bag-type dust collector 15, a first heat exchanger 16, a first condenser 18, a first demister 19 and a first air blower 20, wherein a first carrier gas outlet 8 is communicated with the first cyclone dust collector 14, a gas outlet of the first cyclone dust collector 14 is communicated with the first bag-type dust collector 15, a gas outlet of the first bag-type dust collector 15 is communicated with the first heat exchanger 16, and a first induced draft fan 17 is arranged between the gas outlet and the first heat exchanger 16, in the specific embodiment, the drying carrier gases at 85-95 ℃ in the drying zone 3 are converged at the top of the drying zone 3 and sequentially enter the first cyclone dust collector 14 and the first bag-type dust collector 15 from the first carrier gas outlet 8 for dust removal, impurities such as materials carried by the drying carrier gases are separated and then enter the first heat exchanger 16, and the first heat exchanger 16 can cool the dried carrier gases after dust removal, the carrier gas is cooled to 35-45 ℃, the carrier gas continuously enters a first condenser 18, the first condenser 18 can condense the cooled dry carrier gas and condense the condensed carrier gas to 10-15 ℃, the condensed dry carrier gas enters a first demister 19 for demisting treatment, the demisted dry carrier gas flows back to a first heat exchanger 16 for heating, the temperature is raised to 70-85 ℃, the dry carrier gas heated by the first heat exchanger 16 is communicated with a heater 12, the heater 12 heats the dry carrier gas to 125-145 ℃, the dry carrier gas heated by the heater 12 is communicated with a first carrier gas inlet 6 by a first air blower 20, solid outlets of a first cyclone dust collector 14 and a first cloth bag dust collector 15 are communicated with a feed port 5, and material waste is avoided. In this embodiment, the first heat exchanger 16 is a gas-gas heat exchanger, and the demisted dry carrier gas flows back to the first heat exchanger 16 to exchange heat with the subsequently entering dry carrier gas, so as to improve the energy utilization rate. In addition, the heating medium of the heater 12 can be steam or electricity with the pressure of 0.7MPa-1.3 MPa.
Correspondingly, the second carrier gas processing component comprises a second cyclone dust collector 21, a second bag-type dust collector 22, a second demister 23 and a second air blower 24, a second carrier gas outlet 9 is communicated with the second cyclone dust collector 21, a gas outlet of the second cyclone dust collector 21 is communicated with the second bag-type dust collector 22, a gas outlet of the second bag-type dust collector 22 is communicated with a second condenser 13, a second induced draft fan 25 is arranged between the second carrier gas outlet and the second condenser 13, the cooling carrier gas at the temperature of 40-50 ℃ in the cooling area 4 is converged at the top of the cooling area 4, sequentially enters the second cyclone dust collector 21 and the second bag-type dust collector 22 through the second carrier gas outlet 9, the cooling carrier gas after dust removal treatment enters the second condenser 13 and is condensed to the temperature of 8-12 ℃, the cooling carrier gas after condensation treatment by the second condenser 13 enters the second demister 23, the cooling carrier gas after demisting treatment is communicated with the second carrier gas inlet 7 through the second air blower 24, the cooling operation is continued.
More specifically, cooling zone 4 is connected with dry feed bin 26, the material through cooling process gets into dry feed bin 26 and stores, the solid export of second cyclone 21 and second sack cleaner 22 all is linked together with dry feed bin 26, casing 2 and dry feed bin 26 all are connected with the control valve, convenient operation, second cyclone 21 and second sack cleaner 22 will separate out material input dry feed bin 26, avoid the wasting of resources, improve the operational reliability of system.
It should be emphasized that, the cooling coil 11 includes a first cooling coil 11 and a second cooling coil 11, the first cooling coil 11 is communicated with cooling water, the second cooling coil 11 is communicated with chilled water, both the first cooling coil 11 and the second cooling coil 11 can exchange heat with the material to be processed, so as to cool the material, the chilled water is used as a cooling medium, the temperature of the material can be reduced to 20 ℃ -35 ℃, meanwhile, the cooling water and the chilled water are set as the cooling medium, the problem of too fast temperature reduction of the material is avoided, the first cooling coil 11 and the second cooling coil 11 are arranged at intervals along the conveying direction of the material to be processed, and the phenomena of dewing and material hardening can be avoided.
Further, be provided with baffle 27 in the inner chamber of casing 2, dry zone 3 and cooling space 4 are separated with the inner chamber of casing 2 to baffle 27, and baffle 27 links to each other with the top inner wall of casing 2, the utility model discloses utilize baffle 27 to link to each other with the top inner wall of casing 2, in the partition region, avoid influencing the circulation of material, improved the reliability of system.
It should be further noted that the material to be processed is communicated with the feed inlet 5 by the feeding screw conveyor 28, the solid outlets of the first cyclone dust collector 14 and the first bag-type dust collector 15 are communicated with the feed inlet 5 by the drying return conveyor 29, the drying area 3 is further connected with the return lifter 30, the drying return conveyor 29 and the return lifter 30 are both communicated with the return screw conveyor 31, the feeding screw conveyor 28 and the return screw conveyor 31 are both communicated with the double-shaft mixer 32, and the double-shaft mixer 32 is communicated with the feed inlet 5. The utility model discloses utilize returning charge lifting machine 30 to return partial material feed inlet 5 and carry out the drying again for great material can be carried out deep drying to moisture content stirring, improves material drying stability.
Furthermore, the air inlet of the first air blower 20 is communicated with the external environment through a filter 33, the external air periodically supplements fresh air to the drying area 3 through the filter 33, the first bag-type dust collector 15 adopts compressed air as purge air, and redundant waste gas is discharged outside at the outlet of the first induced draft fan 17.
Correspondingly, the second carrier gas inlet 7 is also communicated with an external nitrogen source, low-pressure nitrogen is periodically supplemented into the cooling area 4, the second bag-type dust collector 22 adopts the low-pressure nitrogen as purge gas, and redundant waste gas is discharged at the outlet of the second induced draft fan 25.
In addition, the first carrier gas inlets 6 correspond to the drying coil pipes 10 one by one, and the plurality of first carrier gas inlets 6 are arranged in parallel; the second carrier gas inlets 7 correspond to the cooling coils 11 one by one, the second carrier gas inlets 7 are arranged in parallel, and elements in the shell 2 are reasonably arranged to ensure the normal work of the fluidized bed dryer 1.
The utility model discloses an adipic acid drying system has set up first carrier gas processing unit and second carrier gas processing unit, and dry carrier gas and cooling carrier gas subchannel cyclic utilization have effectively improved energy utilization and have rateed, and the tail gas emission is little, and is energy-concerving and environment-protective more. And simultaneously, the utility model is suitable for a various materials that moisture content changes, the adjustability is high, has hot area material returning function, is fit for the fluctuation of moisture content and carries out deep drying greatly, and the heat source loss is little, and the suitable popularization and application has wide application prospect in the deep drying of materials such as resin, nylon, polypropylene, polyethylene, ABS.
The principle and the implementation mode of the utility model are explained by applying a specific embodiment, and the explanation of the embodiment is only used for helping to understand the method and the core idea of the utility model; meanwhile, for those skilled in the art, the idea of the present invention may be changed in the specific embodiments and the application range. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (10)
1. An adipic acid drying system, comprising:
the fluidized bed dryer comprises a shell, wherein an inner cavity of the shell comprises a drying area and a cooling area which are communicated with each other, the shell is provided with a feed inlet, a first carrier gas inlet, a second carrier gas inlet, a first carrier gas outlet and a second carrier gas outlet, materials to be treated can enter the shell from the feed inlet, the feed inlet is communicated with the drying area, the first carrier gas inlet and the first carrier gas outlet are communicated with the drying area, the second carrier gas inlet and the second carrier gas outlet are communicated with the cooling area, the first carrier gas inlet is communicated with drying carrier gas, and the second carrier gas inlet is communicated with cooling carrier gas; the drying area is provided with a drying coil communicated with a drying medium, the cooling area is provided with a cooling coil communicated with a cooling medium, and the drying medium and the cooling medium can exchange heat with the material to be treated;
the first carrier gas treatment unit comprises a first carrier gas treatment component and a heater which are connected, the first carrier gas treatment component is communicated with the first carrier gas outlet, the first carrier gas treatment component can be used for removing impurities from the dry carrier gas, the heater can be used for heating the dry carrier gas, and the outlet of the heater is communicated with the first carrier gas inlet;
the second carrier gas processing unit comprises a second carrier gas processing assembly and a second condenser, wherein the second carrier gas processing assembly and the second condenser are connected, the second carrier gas processing assembly is communicated with the second carrier gas outlet, the second carrier gas processing assembly can remove impurities from the cooling carrier gas, the second condenser can cool the cooling carrier gas, and the outlet of the second condenser is communicated with the second carrier gas inlet.
2. The adipic acid drying system of claim 1, wherein: the first carrier gas treatment component comprises a first cyclone dust collector, a first bag-type dust collector, a first heat exchanger, a first condenser, a first demister and a first air blower, a first carrier gas outlet is communicated with the first cyclone dust collector, a gas outlet of the first cyclone dust collector is communicated with the first bag-type dust collector, a gas outlet of the first bag-type dust collector is communicated with the first heat exchanger, a first induced draft fan is arranged between the gas outlet of the first bag-type dust collector and the first heat exchanger, the first heat exchanger can cool the dried carrier gas after dust removal, the first condenser can condense the dried carrier gas after temperature reduction, the dried carrier gas after condensation enters the first demister to be demisted, the dried carrier gas after demisting flows back to the first heat exchanger to be heated, and the dried carrier gas after being heated by the first heat exchanger is communicated with the heater, the drying carrier gas heated by the heater is communicated with the first carrier gas inlet by the aid of the first air blower, and solid outlets of the first cyclone dust collector and the first bag-type dust collector are communicated with the feed inlet.
3. The adipic acid drying system of claim 1, wherein: the second carrier gas processing assembly comprises a second cyclone dust collector, a second bag-type dust collector, a second demister and a second air blower, a second carrier gas outlet is communicated with the second cyclone dust collector, a gas outlet of the second cyclone dust collector is communicated with the second bag-type dust collector, a gas outlet of the second bag-type dust collector is communicated with a second condenser, a second induced draft fan is arranged between the second condenser and the second induced draft fan, the second induced draft fan is used for condensing the cooling carrier gas in the second demister, the cooling carrier gas enters the second demister, and the cooling carrier gas passes through the demisting treatment, and the second air blower is communicated with a second carrier gas inlet.
4. The adipic acid drying system of claim 3, wherein: the cooling area is connected with a dry material bin, and solid outlets of the second cyclone dust collector and the second bag-type dust collector are communicated with the dry material bin.
5. The adipic acid drying system of claim 1, wherein: cooling coil includes first cooling coil and second cooling coil, first cooling coil and cooling water phase intercommunication, second cooling coil is linked together with the refrigerated water, first cooling coil with second cooling coil follows the direction of delivery interval setting of pending material.
6. The adipic acid drying system of claim 1, wherein: the inner cavity of the shell is internally provided with a partition board, the partition board divides the inner cavity of the shell into the drying area and the cooling area, and the partition board is connected with the inner wall of the top of the shell.
7. The adipic acid drying system of claim 2, wherein: the material to be treated utilizes feeding screw conveyer with the feed inlet is linked together, first cyclone with the solid outlet of first sack cleaner utilize dry return conveyer with the feed inlet is linked together, the dry zone still is connected with the material returning lifting machine, dry return conveyer with the material returning lifting machine all communicates with material returning screw conveyer, feeding screw conveyer with material returning screw conveyer all is linked together with the biax mixes the machine, the biax mix the machine with the feed inlet is linked together.
8. The adipic acid drying system of claim 2, wherein: the air inlet of the first blower is also in communication with the outside environment using a filter.
9. The adipic acid drying system of claim 3, wherein: the second carrier gas inlet is also communicated with an external nitrogen source.
10. Adipic acid drying system according to any one of claims 1 to 9, characterized in that: the first carrier gas inlets correspond to the drying coil pipes one by one, and the first carrier gas inlets are arranged in parallel; the second carrier gas inlets correspond to the cooling coils one by one, and the second carrier gas inlets are arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220250302.4U CN217058169U (en) | 2022-02-07 | 2022-02-07 | Adipic acid drying system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220250302.4U CN217058169U (en) | 2022-02-07 | 2022-02-07 | Adipic acid drying system |
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| CN217058169U true CN217058169U (en) | 2022-07-26 |
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| CN202220250302.4U Active CN217058169U (en) | 2022-02-07 | 2022-02-07 | Adipic acid drying system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114562855A (en) * | 2022-02-07 | 2022-05-31 | 天华化工机械及自动化研究设计院有限公司 | Adipic acid drying system |
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2022
- 2022-02-07 CN CN202220250302.4U patent/CN217058169U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114562855A (en) * | 2022-02-07 | 2022-05-31 | 天华化工机械及自动化研究设计院有限公司 | Adipic acid drying system |
| CN114562855B (en) * | 2022-02-07 | 2024-07-23 | 天华化工机械及自动化研究设计院有限公司 | Adipic acid drying system |
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