CN202687388U - Conveying system for industrial solid adipic acid - Google Patents
Conveying system for industrial solid adipic acid Download PDFInfo
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- CN202687388U CN202687388U CN 201220348833 CN201220348833U CN202687388U CN 202687388 U CN202687388 U CN 202687388U CN 201220348833 CN201220348833 CN 201220348833 CN 201220348833 U CN201220348833 U CN 201220348833U CN 202687388 U CN202687388 U CN 202687388U
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- Prior art keywords
- adipic acid
- finished product
- chain conveyer
- buffer bin
- industrial solid
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Abstract
The utility model discloses a conveying system for industrial solid adipic acid. A double-shaft mixer is connected with a fluidized bed dryer, the fluidized bed dryer is provided with a finished product unloader and a returned material unloader, the finished product unloader is connected with finished product pipe chain conveyors, the finished product pipe chain conveyors are connected with at least one buffering storage bin, and a nitrogen purging system is arranged in the finished product pipe chain conveyors and the buffering storage bin; at least one outlet is formed at the bottom of the buffering storage bin, and each outlet is connected to a packing system through a spiral conveyor, an unloading valve or an articulated chute; and the returned material unloader is connected with a returned material pipe chain conveyor, and the returned material pipe chain conveyor is connected to the double-shaft mixer. Leaking points in the system are reduced while the process is optimized, and the continuity, safety and stability of the system are improved; the process is short, and a small amount of electric equipment is used, so that energy consumption is greatly reduced, and production cost is reduced; and the wear of adipic acid finished product grains is reduced, the grain size of the product is large, and the competitiveness of the product is improved.
Description
Technical field
The utility model relates to the delivery system in a kind of chemical production field, specifically, relates to a kind of delivery system of industrial solid adipic acid.
Background technology
Adipic acid is commonly called as adipic acid, is loose shape granularity, and wider distribution has some corrosive propertys, inflammable, explosive, easily produces static, and excess Temperature is softening caking even rotten a kind of crystlline easily, 151.9 ℃ of fusing points, 337.5 ℃ of boiling points, 196 ℃ of flash-points.Salt-forming reaction, esterification, amidation process etc. can occur in adipic acid, and can become high molecular polymer etc. with diamine or diatomic alcohol polycondensation.Adipic acid is as a kind of organic synthesis intermediate, be mainly used in synthetic nylon 66(salt), polyurethane and plasticizer, also can be used for producing senior lubricant, food additives, medicine intermediate, essence and flavoring agent controlling agent, novel monocrystal material, plastics blowing agent, coating, adhesives, insecticide, dyestuff etc.
For adipic acid is carried, the exploitation of its delivery technology system, improvement, to improve what will pay close attention to especially be the factors such as security of system, the consumption of system share engineering, adipic acid finished product grain size, cause the personal injury except safety misadventure occurring as flow process is unreasonable, the too high cost of product increase of energy resource consumption and the decline of adipic acid particle diameter also may occur affects price.Therefore, the principle of design of process system is to improve as far as possible reliability, reasonableness.
The mode that traditional adipic acid delivery system adopts strength to carry is carried out.Dried adipic acid out enters the high-pressure rotary discharger of being protected by nitrogen-sealed afterwards from fluid bed; enter again a strength accelerator; simultaneously; the nitrogen that loops back from closed-circuit system is through the purification of filter; the cooling of front cooling vessel, the compression of nitrogen compressor, the cooling of after cooler; and entering air-transport system behind moisture separator and the buffer tank, supplying nitrogen is adjusted automatically with the size of operational throughput.Close pulsation fluidized bunker and the returning charge feed bin of being delivered to mutually of the compressed nitrogen of material, the adipic acid that is transported to aeration silo is weighed through rotating blanking valve and is packed, the adipic acid that is transported to the returning charge feed bin is delivered to the twin shaft mixer through rotating blanking valve to be mixed with wet feed, and mixed adipic acid is sent to fluidized bed dryer and carries out drying.The useless nitrogen of discharging from the feed bin top passes through first baghose precipitator primary purification and efficient purifier double purification, again by recycle after the compression of circulating fan.
For traditional adipic acid delivery system, wearing and tearing because of adipic acid finished particle and airflow pipeline inwall, adipic acid grain diameter after the conveying diminishes, and its operating process is longer, the consumption of nitrogen and electricity is larger, and the comprehensive application aspect of device energy is still waiting further to improve and is perfect.Long operating process needs more investment ability to finish on the one hand, has also increased the leak point in the device simultaneously, is disadvantageous for Security of the system and stability.Adipic acid grain diameter diameter affects price, and the assurance product cut size is not damaged, and can improve the competitive power of product; The comprehensive application of energy is a systematic engineering of business simultaneously, and traditional handicraft relates to seldom in this respect, has consumed a large amount of nitrogen and electricity, has caused the waste of energy, has also improved the over-the-road expense of device.
The utility model content
To be solved in the utility model is that adipic acid grain diameter after the adipic acid delivery system is carried traditionally diminishes, operating process is longer, the technical matters that nitrogen and the electric consumption are larger, a kind of delivery system of industrial solid adipic acid is provided, can the Effective Raise system stability of operation, improve the quality of products, save public work consumption.
In order to solve the problems of the technologies described above, the utility model is achieved by following technical scheme:
A kind of delivery system of industrial solid adipic acid, comprise the twin shaft mixer, described twin shaft mixer is connected with fluidized bed dryer, described fluidized bed dryer is provided with finished product discharger and returning charge discharger, described finished product discharger is connected with production tube chain conveyer, described production tube chain conveyer is connected with at least one buffer bin, and described production tube chain conveyer and described buffer bin are equipped with the nitrogen blowing system; Described buffer bin bottom is provided with at least one outlet, and each outlet is connected in packaging system by conveyor screw, baiting valve or elephant trunk; Described returning charge discharger is connected with refeed line chain conveyer, and refeed line chain conveyer is connected in the twin shaft mixer.
Described buffer bin bottom is cone, and top is the cylinder that is connected with the cone one.
Described production tube chain conveyer is connected with buffer bin by elephant trunk.
Described buffer bin bottom is provided with auxiliary blanking device, and described auxiliary blanking device is air supporting, air pocket rapping or mechanical vibrator.
The beneficial effects of the utility model are:
(1), the utility model adopts pipe chain conveyer to carry the adipic acid of finished product adipic acid and returning charge, avoided large-scale rotating machinery, pressure container and pressure pipeline, improved Security of the system and stability.And traditional handicraft generally adopts pneumatic conveying mode to carry adipic acid, conveying gas adopts nitrogen as carrier, delivery pressure is about 0.3MPaG, have the large-scale compression machine equipments such as nitrogen compressor in the system, also have in addition pressure container and pressure pipeline, operating process is longer, and the consumption of nitrogen and electricity is larger.
(2), workflow of the present utility model is simple, reduced the leak point in the system in the time of process optimization, increased Security of the system and stability.And legacy system delivery technology operating process is longer, take 150,000 ton/years of adipic acid process unitss of a cover as example, equipment in the tradition pneumatic transmission flow process has 42/cover approximately, and equipment of the present utility model is less than 10/cover, and list can be saved about 5,500,000 yuan from the equipment investment aspect.
(3), the utility model is owing to adopt pipe chain conveyer to carry, flow process is shorter, consumer is less, energy consumption is more reasonable, take 150,000 ton/years of adipic acid process unitss of a cover as example, the nitrogen consumption of traditional pneumatic transmission system delivery technology is at 1400Nm
3/ h, and the nitrogen consumption of the utility model delivery technology only has 35Nm
3/ h; The electrisity consumption of tradition pneumatic transmission system delivery technology is 250KW, and the electrisity consumption of the utility model delivery technology only has 55KW; Therefore application of the present utility model greatly reduces energy consumption, has reduced productive costs.
(4), the utility model is owing to adopt slow pipe chain mode of movement to carry adipic acid, reduce the legacy system delivery technology and carried the adipic acid finished particle of generation and the wearing and tearing of inner-walls of duct because of air-flow, so the particle diameter of product is larger, price is higher, has improved the competitive power of product.
Description of drawings
Accompanying drawing is the structural representation of the delivery system of industrial solid adipic acid provided by the utility model.
Among the figure: 1, the twin shaft mixer; 2, fluidized bed dryer; 3, the finished product discharger; 4, production tube chain conveyer; 5, buffer bin; 6, the nitrogen blowing system; 7, auxiliary blanking device; 8, baiting valve; 9, conveyor screw; 10, packaging system; 11, the returning charge discharger; 12, refeed line chain conveyer.
The specific embodiment
As shown in drawings, present embodiment has disclosed a kind of delivery system of industrial solid adipic acid, and finished product is carried and the returning charge conveying is all undertaken by pipe chain conveyer.Pipe chain conveyer is comprised of parts such as drive end, tension side, chain, conveying disc, pipeline, Local Control Panels, the motor of drive end is by gear case, drive sprocket, chain drive-belt and be installed in conveying disc rotation on the chain, carries the material between the disc to be transported to discharging opening by mechanical mode of movement from inlet point in the pipeline being filled in.Pipe chain conveyer detects at drive end and tension side respectively with taking off the chain control system, comprises the switch of emergency cut-off pipe chain conveyer, the generation of anti-anti-avulsion chain, chain rupture.Usually pipe chain conveyer is adjusted after need to testing according to the material of carrying, and its technical requirements is the requirement that can satisfy Solid Conveying and Melting and traffic capacity.In addition, the solid of conveying can not buildup in pipe chain conveyer inside, can not stop up.
Twin shaft mixer 1 is connected with fluidized bed dryer 2, and two outlets of fluidized bed dryer 2 are respectively arranged with finished product discharger 3 and returning charge discharger 11.Finished product discharger 3 is connected with production tube chain conveyer 4, and production tube chain conveyer 4 comprises first the finished product horizontal segment in the present embodiment according to the production scene actual arrangement, the terminal finished product vertical section that connects of finished product horizontal segment.The vertical section outlet of production tube chain conveyer 4 is connected in buffer bin 5 by elephant trunk.Returning charge discharger 11 is connected with refeed line chain conveyer 12, and the outlet of refeed line chain conveyer 12 is connected in twin shaft mixer 1.
Buffer bin 5 can be set as a big material bin, also can be set as according to concrete arrangement requirement the small feed bin of some.Buffer bin 5 tops are cylinder, and the bottom is the conical structure that is connected with the upper cylinder one.Buffer bin 5 tops arrange inspection socket, in order to check relatively easily, clean, clean and overhaul.Buffer bin 5 bottoms are provided with auxiliary blanking device, and for example air supporting, air pocket rapping or mechanical vibrator guarantee that the material blanking is unobstructed, prevent the situations such as frame bridging that solid material is prone at bin outlet, obstruction.In addition, buffer bin 5 also is provided with the height material level and reports to the police, and can know the material level of solid material in the feed bin; Low material level place should be provided with visor, the material situation in the observable feed bin.Buffer bin 5 also can be furnished with dust exhaustor, blowback facility, and dust exhaustor prevents that dust from entering air before placing drain; The blowback facility is used for when the adipic acid dust of dust exhaustor inside acquires a certain degree, and the blowback of adipic acid dust is blown into feed bin reclaims.
Buffer bin 5 bottoms are provided with one or more outlet, and each outlet is connected with conveyor screw 9 or baiting valve 8 or elephant trunk according to concrete arrangement requirement, are used for the finished product solid adipic acid is sent into packaging system.In general, can select baiting valve 8 during directly to the wrapping machine entrance when buffer bin 5 feed openings; When departing from the wrapping machine entrance, buffer bin 5 feed openings can adopt elephant trunk when two mouthfuls of direct coupled pipelines satisfy the requirement of solid angle of repose simultaneously; Need adopt conveyor screw 9 when depart from wrapping machine entrance level when buffer bin 5 feed openings when distant.Wherein, conveyor screw 9 or baiting valve 8 can be adjusted the traffic capacity of finished product solid adipic acid to adapt to the packing requirements of different abilities by variable frequency adjustment.
Production tube chain conveyer 4 and buffer bin 5 are provided with nitrogen protection, and nitrogen purge line and valve namely are installed, to prevent that material from contacting the Children's Film Studio of China and ringing product quality with wet air.Simultaneously, being full of of nitrogen can make in the space without air, because solid adipic acid is flammable solid, the adding of nitrogen can be guaranteed safety more.
Wherein, twin shaft mixer 1, fluidized bed dryer 2, production tube chain conveyer 4, refeed line chain conveyer 12 all adopt two covers, and it is one standby that two cover systems one are opened, and can only open a cover delivery system when normally moving, also can two cover delivery system standard-sized sheets, to satisfy the conveying requirement of solid adipic acid.
During work, dry qualified product is discharged by the outgate of fluidized bed dryer 2, and the finished product horizontal segment that process finished product discharger 3 enters production tube chain conveyer 4 is carried, terminal at the finished product horizontal segment, the finished product solid adipic acid is sent to the finished product vertical section of production tube chain conveyer 4, and the outlet of vertical section is sent the finished product solid adipic acid into buffer bin 5 by elephant trunk.Buffer bin 5 bottoms are provided with outlet, and each outlet is connected with conveyor screw 9 or baiting valve 8 or elephant trunk, and the finished product solid adipic acid is sent into adipic acid packaging system 10.
Simultaneously, dry qualified another part finished product solid adipic acid is discharged from the returning charge discharger 11 of fluidized bed dryer 2 fluidisation sections bottom, enters refeed line chain conveyer 12.The finished product solid adipic acid enters in the twin shaft mixer 1 from 12 outlets of refeed line chain conveyer and mixes with wet feed, and mixed adipic acid is sent to fluidized bed dryer 2 and carries out drying.
Although the above is described preferred embodiment of the present utility model with preferred embodiment by reference to the accompanying drawings; but the utility model is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment only is schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; do not breaking away from the scope situation that the utility model aim and claim protect; can also make the concrete conversion of a lot of forms, these all belong within the protection domain of the present utility model.
Claims (5)
1. the delivery system of an industrial solid adipic acid, comprise the twin shaft mixer, described twin shaft mixer is connected with fluidized bed dryer, it is characterized in that, described fluidized bed dryer is provided with finished product discharger and returning charge discharger, described finished product discharger is connected with production tube chain conveyer, and described production tube chain conveyer is connected with at least one buffer bin, and described production tube chain conveyer and described buffer bin are equipped with the nitrogen blowing system; Described buffer bin bottom is provided with at least one outlet, and each outlet is connected in packaging system by conveyor screw, baiting valve or elephant trunk; Described returning charge discharger is connected with refeed line chain conveyer, and refeed line chain conveyer is connected in the twin shaft mixer.
2. the delivery system of a kind of industrial solid adipic acid according to claim 1 is characterized in that, described buffer bin bottom is cone, and top is the cylinder that is connected with the cone one.
3. the delivery system of a kind of industrial solid adipic acid according to claim 1 is characterized in that, described production tube chain conveyer is connected with buffer bin by elephant trunk.
4. the delivery system of a kind of industrial solid adipic acid according to claim 1 is characterized in that, described buffer bin bottom is provided with auxiliary blanking device.
5. the delivery system of a kind of industrial solid adipic acid according to claim 4 is characterized in that, described auxiliary blanking device is air supporting, air pocket rapping or mechanical vibrator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220348833 CN202687388U (en) | 2012-07-18 | 2012-07-18 | Conveying system for industrial solid adipic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220348833 CN202687388U (en) | 2012-07-18 | 2012-07-18 | Conveying system for industrial solid adipic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202687388U true CN202687388U (en) | 2013-01-23 |
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ID=47543038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220348833 Expired - Lifetime CN202687388U (en) | 2012-07-18 | 2012-07-18 | Conveying system for industrial solid adipic acid |
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| CN (1) | CN202687388U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107400228A (en) * | 2017-07-21 | 2017-11-28 | 重庆华峰化工有限公司 | A kind of change system and its method of work for producing PEPA |
| CN108357882A (en) * | 2018-02-05 | 2018-08-03 | 洛阳石化工程设计有限公司 | A kind of PTA powders carrier bar transport system |
| CN110314772A (en) * | 2019-07-10 | 2019-10-11 | 河南神马尼龙化工有限责任公司 | A kind of adipic acid grain size sieving device and the method using its dry adipic acid product quality of progress particle filter raising |
| CN111498386A (en) * | 2020-05-13 | 2020-08-07 | 广西北海惠尔能源科技有限公司 | Polypropylene powder pipe chain conveying method |
-
2012
- 2012-07-18 CN CN 201220348833 patent/CN202687388U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107400228A (en) * | 2017-07-21 | 2017-11-28 | 重庆华峰化工有限公司 | A kind of change system and its method of work for producing PEPA |
| CN108357882A (en) * | 2018-02-05 | 2018-08-03 | 洛阳石化工程设计有限公司 | A kind of PTA powders carrier bar transport system |
| CN110314772A (en) * | 2019-07-10 | 2019-10-11 | 河南神马尼龙化工有限责任公司 | A kind of adipic acid grain size sieving device and the method using its dry adipic acid product quality of progress particle filter raising |
| CN110314772B (en) * | 2019-07-10 | 2021-02-26 | 河南神马尼龙化工有限责任公司 | Method for improving quality of dried adipic acid product by utilizing particle size screening |
| CN111498386A (en) * | 2020-05-13 | 2020-08-07 | 广西北海惠尔能源科技有限公司 | Polypropylene powder pipe chain conveying method |
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| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |
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| CX01 | Expiry of patent term |