CN202387465U - Large adipic acid reactor - Google Patents

Large adipic acid reactor Download PDF

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Publication number
CN202387465U
CN202387465U CN201120558400.6U CN201120558400U CN202387465U CN 202387465 U CN202387465 U CN 202387465U CN 201120558400 U CN201120558400 U CN 201120558400U CN 202387465 U CN202387465 U CN 202387465U
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CN
China
Prior art keywords
adipic acid
heat exchange
kettle
scale
acid reactor
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
Application number
CN201120558400.6U
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Chinese (zh)
Inventor
杨克俭
郑仁
黄显忠
赵敏伟
张敬民
李培华
何红梅
杨长友
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Haili Chemical Industry Co Ltd
SICHUAN YIBIN CHEMICAL MACHINERY MANUFACTURING Co Ltd
China Tianchen Engineering Corp
Original Assignee
Shandong Haili Chemical Industry Co Ltd
SICHUAN YIBIN CHEMICAL MACHINERY MANUFACTURING Co Ltd
China Tianchen Engineering Corp
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Publication date
Application filed by Shandong Haili Chemical Industry Co Ltd, SICHUAN YIBIN CHEMICAL MACHINERY MANUFACTURING Co Ltd, China Tianchen Engineering Corp filed Critical Shandong Haili Chemical Industry Co Ltd
Priority to CN201120558400.6U priority Critical patent/CN202387465U/en
Application granted granted Critical
Publication of CN202387465U publication Critical patent/CN202387465U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a large adipic acid reactor which is characterized in that a transmission device is connected at the upper part of a kettle body by virtue of a rack; a stirring shaft is connected behind the transmission device by virtue of a coupler and a short section, and the bottom of the stirring shaft is connected with a bottom bearing arranged on a pipe plate; a filler is used for sealing between the upper end of the stirring shaft and the kettle body; a stirrer is fixed on the stirring shaft; a barrel body and a lower seal head are respectively provided with a half pipe clamp sleeve, so that the heat exchange area can be enlarged; and the heat transfer area is expanded to the maximum by top U-shaped pipe heat exchanger components arranged on an upper seal head, and bottom U-shaped pipe heat exchanger components arranged on the lower seal head, so that the heat-transfer capability is improved in a leaping way. After the novel combined stirrer is adopted, the stirring intensity shearing force is improved, the up and down circulation times are increased, materials are ensured to be evenly stirred, the stirring effect and the heat transfer effect are further improved, and the product is guaranteed to be good in morphology of particles, high in purity and even in molecular weight distribution. The large adipic acid reactor can be used for greatly improving the production intensity, thus providing an ideal device for the production of adipic acid.

Description

Large-scale adipic acid reactor
Technical field
The utility model relates to the large-scale adipic acid reactor of producing adipic acid through ring oxidation of ethanol method and cyclohexane oxidizing process, belongs to chemical machinery field.
Background technology
In the production process of adipic acid, reactor is main production equipment.The quality of its technical performance directly has influence on output, quality and the performance driving economy of adipic acid.The at present homemade most unit volume of adipic acid reactor is little, power consumption is big, counter investment is high, production efficiency is low, be superseded trend.Quick growth along with domestic and international adipic acid demand; Production-scale continuous expansion; The rapid aggravation of market competition; Adipic acid reactor one side develops towards the maximization direction, needs constantly the utilization new technology existing apparatus to be improved and innovate on the other hand, saves production cost, reduces the purpose of labour intensity, raising equipment capacity, lifting product quality to reach.
Present domestic existing adipic acid reactor adopts the interior serpentine coil of still to conduct heat mostly and common gate stirrer stirs.The shortcoming that exists mainly contains:
Required temperature conditions leaned on the serpentine coil in the kettle to accomplish merely when 1, the adipic acid material reacted in reactor, and heat exchange area is little, and heat transfer efficiency is low, and the reaction time is long.2, agitator is common gate stirrer, and a little less than the stirring intensity, Flow of Goods and Materials efficient is low, and reaction speed is slow.3, shaft is a cantilevered axle, and the axle head swing is big, easily fracture.4, reactor volume is little, and production capacity is poor.5, serpentine coil is with the material separated into two parts in the kettle; Near the agitator part with near the kettle wall part; Good near agitator part mixing effect; Near the kettle wall part since receive serpentine coil to influence mixing effect poor, cause in the still each several part temperature difference big, thereby cause product quality inhomogeneous.
Summary of the invention
The technical problem that the utility model will solve provides that a kind of heat transfer efficiency is high, production intensity is big, the large-scale adipic acid reactor of constant product quality to be to remedy the deficiency of prior art.
The technical scheme that the utility model adopts is: large-scale adipic acid reactor, comprise kettle 11 and frame 3, and it is characterized in that: transmission device 1 is connected in kettle top through frame 3, and transmission device 1 is connected in shaft 7 through shaft coupling 2 and pipe nipple 4; Shaft 7 is a single-spanshaft, and the bottom is supported by base bearing 13, is fixed with combined type agitator 10 on the shaft 7; Outside the cylindrical shell of kettle 11, and input and output material is taken over 15 bottoms and low head 16 is provided with half-pipe jacket 12; The upper cover 17 of kettle is provided with top U type heat exchange of heat pipe assembly 9; Low head 16 is provided with bottom U type heat exchange of heat pipe assembly 14, and half-pipe jacket 12, top U type heat exchange of heat pipe assembly 9 and bottom U type heat exchange of heat pipe assembly 14 all are provided with cooling water inlet and coolant outlet; Be provided with alcohol ketone charging distributor pipe 8 in the still, have charging aperture 21 on the alcohol ketone charging distributor pipe 8.
Described large-scale adipic acid reactor is characterized in that: combined type agitator 10 is made up of frame type agitating blade 18, cantilever paddle 19 and anchor formula paddle 20.
Described large-scale adipic acid reactor is characterized in that: between shaft 7 upper ends and the kettle 11 packing seal 6 is arranged.
Described large-scale adipic acid reactor is characterized in that: top U type heat exchange of heat pipe assembly 9 quantity are 4 to 12 groups.
Described large-scale adipic acid reactor is characterized in that: bottom U type heat exchange of heat pipe assembly 14 is double tube plate heat exchanger 22,23, and heat exchanger tube distributes ringwise.
Described large-scale adipic acid reactor is characterized in that: frame type agitating blade 18 is positioned at bottom U type heat exchange of heat pipe assembly 14 inner rings, and the cantilever paddle 19 at two ends is between bottom U type heat exchange of heat pipe assembly 14 and top U type heat exchange of heat pipe assembly 9.
Described large-scale adipic acid reactor is characterized in that: the kettle volume is 25 ~ 100m 3, ratio of height to diameter is 0.95 ~ 1.5, nominal diameter is 3.0 ~ 4.0m.
Described large-scale adipic acid reactor is characterized in that: the kettle volume is 25.3 m 3, ratio of height to diameter is 0.95, nominal diameter is 3.0m.
Good effect: the large-scale adipic acid reactor that adopts the utility model to provide effectively raises production capacity, heat-transfer capability and the stirring efficiency of reactor.Because the draw ratio of this reactor is suitable, volume is big, so output is big, efficient is high.On reactor shell turnover following position of material and low head, adopt current global mechanism half-pipe jacket structure, increased reactor external heat-exchanging ability newly, can control the reaction temperature of adipic acid more accurately; Top U type heat exchange of heat pipe assembly and bottom U type heat exchange of heat pipe assembly expand to maximum with heat exchange area; Rapid lifting heat exchange efficiency; Heat exchange requirement when fully having satisfied reaction changes reaction temperature to be controlled at ± 0.5 ℃, guarantees that adipic acid can reach predetermined reaction temperature; Agitator design becomes the novel combination type agitator, has improved stirring intensity shearing force and cycle-index, and it is inhomogeneous to have avoided material to stir, and has further improved mixing effect and heat-transfer effect, guarantees that the product particle form is good, purity is high, molecular weight distribution is well-balanced; Be provided with many alcohol ketone charging distributor pipes in the kettle, guarantee that fully material mixes as early as possible, what help reacting carries out fast, reduces production of by-products; Adopt packing seal not only to avoid product to influence product quality but also reduced equipment cost because of receiving the Seal Oil pollution.To sum up advantage is equipped with improved reaction process again, and the large-scale adipic acid reactor of the utility model has improved production intensity greatly, for adipic acid production provides ideal device.
Description of drawings
Pass through embodiment below, and combine accompanying drawing that the utility model is further described.
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is a combined type agitator structure sketch map.
Fig. 3 is a top U type heat exchange of heat pipe modular construction sketch map.
Fig. 4 is a bottom U type heat exchange of heat pipe modular construction sketch map.
Fig. 5 is an alcohol ketone charging distributor pipe structural representation.
The specific embodiment
Embodiment: in the drawings, 1 is transmission device, and 2 is shaft coupling, and 3 is frame; 4 is pipe nipple, and 5 is bearing box, and 6 are packing seal, and 7 is shaft; 8 is alcohol ketone charging distributor pipe, and 9 is top U type heat exchange of heat pipe assembly, and 10 is the novel combination type agitator, and 11 is kettle; 12 is half-pipe jacket, and 13 is base bearing, and 14 is bottom U type heat exchange of heat pipe assembly.
Large-scale adipic acid reactor comprises transmission device 1, kettle 10, packing seal 6 and stirring system.The reactor ratio of height to diameter is 0.95, volume be 25.3 nominal diameter be 3.0 ; Outside the cylindrical shell of kettle 11, and input and output material is taken over 15 bottoms and low head 16 is provided with half-pipe jacket 12; The upper cover 17 of reactor is provided with heat exchange of top part device assembly 9, and low head 16 is provided with bottom heat exchanger assembly 14, and half-pipe jacket 12 all is provided with cooling water inlet and coolant outlet with heat exchanger assembly 9,14; Be provided with many alcohol ketone charging distributor pipes 8 in addition in the kettle 11, have a plurality of charging apertures 21 on the alcohol ketone charging distributor pipe 8.Transmission device 1 is connected in kettle 11 tops through frame 3; Transmission device 1 back is connected with shaft 7 through shaft coupling 2 and pipe nipple 4; Shaft 7 is a single-spanshaft, and the bottom links to each other with base bearing 13 on being arranged on tube sheet 22, between shaft 7 upper ends and the kettle 11 packing seal 6 is arranged; Be fixed with agitator 10 on the shaft 7, agitator 10 is made up of frame type agitating blade 18, cantilever paddle 19 and anchor formula paddle 20.
After rigging up and debugging finishes, can use: large-scale adipic acid reactor is the continuous operation process, six adipic acid reactors of a production line series connection of traditional adipic acid process units; Single reactor productivity is little, the whole production long flow path, and process is complicated; Consume height, the accessory substance of generation is many, adopts large-scale adipic acid reactor of the present invention; Article one, production line only needs two reactor tandem workings, the shortcoming before having overcome, and positive effect is very obvious.In large-scale adipic acid reactor production process; Reaction mass cyclohexanone, cyclohexanol get in the reactor from the alcohol ketone charging distributor pipe 8 on reactor top, are evenly distributed through a plurality of apertures 21 on the distributor pipe 8, and react with the oxidizing acid that gets into from reactor lower part; Simultaneously; U-shaped heat exchange of heat pipe 14 assembly inner rings stir in the bottom by frame type agitating blade 18, and cantilever paddle 19 stirs between bottom U-shaped heat exchange of heat pipe assembly and top U-shaped heat exchange of heat pipe 9 assemblies, have guaranteed to stir abundant, even; Course of reaction is stablized carries out; The a large amount of heats that produce in the course of reaction are taken away by the cooling water in the half-pipe jacket on the kettle 12 and bottom U-shaped heat exchange of heat pipe 14 assemblies and top U-shaped heat exchange of heat pipe 9 assemblies, guarantee the constant of reaction temperature, have reduced production of by-products.The material that reaction is accomplished pours from kettle 11 middle and upper parts, and new material constantly flows to kettle 11 again and participates in reaction.

Claims (7)

1. large-scale adipic acid reactor; Comprise kettle (11) and frame (3); It is characterized in that: transmission device (1) is connected in kettle (11) top through frame (3), and transmission device (1) is connected in shaft (7) through shaft coupling (2) and pipe nipple (4); Shaft (7) is a single-spanshaft, and the bottom is supported by base bearing (13), is fixed with agitator (10) on the shaft (7); Outside the cylindrical shell of kettle (11), and input and output material is taken over (15) bottom and low head (16) is provided with half-pipe jacket (12); The upper cover of kettle (17) is provided with top U type heat exchange of heat pipe assembly (9); Low head (16) is provided with bottom U type heat exchange of heat pipe assembly (14), and half-pipe jacket (12), top U type heat exchange of heat pipe assembly (9) and bottom U type heat exchange of heat pipe assembly (14) all are provided with cooling water inlet and coolant outlet; Be provided with alcohol ketone charging distributor pipe (8) in the still, have charging aperture (21) on the alcohol ketone charging distributor pipe (8).
2. large-scale adipic acid reactor as claimed in claim 1 is characterized in that: agitator (10) is made up of frame type agitating blade (18), cantilever paddle (19) and anchor formula paddle (20).
3. large-scale adipic acid reactor as claimed in claim 1 is characterized in that: between shaft (7) upper end and the kettle (11) packing seal (6) is arranged.
4. large-scale adipic acid reactor as claimed in claim 1; It is characterized in that: the heat exchanger in top U type heat exchange of heat pipe assembly (9) and the bottom U type heat exchange of heat pipe assembly (14) is double tube plate heat exchanger (22), (23), and bottom U type heat exchange of heat pipe assembly (14) quantity is two groups.
5. according to claim 1 or claim 2 large-scale adipic acid reactor; It is characterized in that: frame type agitating blade (18) is positioned between two groups of bottom U type heat exchange of heat pipe assemblies (14), and the cantilever paddle at two ends (19) is positioned between bottom U type heat exchange of heat pipe assembly (14) and the top U type heat exchange of heat pipe assembly (9).
6. large-scale adipic acid reactor as claimed in claim 1 is characterized in that: the kettle volume is 25 ~ 100 m 3, ratio of height to diameter is 0.95 ~ 1.5, nominal diameter is 3.0 ~ 4.0m.
7. large-scale adipic acid reactor as claimed in claim 1 is characterized in that: the kettle volume is 25.3 m 3, ratio of height to diameter is 0.95, nominal diameter is 3.0m.
CN201120558400.6U 2011-12-28 2011-12-28 Large adipic acid reactor Expired - Lifetime CN202387465U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201120558400.6U CN202387465U (en) 2011-12-28 2011-12-28 Large adipic acid reactor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201120558400.6U CN202387465U (en) 2011-12-28 2011-12-28 Large adipic acid reactor

Publications (1)

Publication Number Publication Date
CN202387465U true CN202387465U (en) 2012-08-22

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103252204A (en) * 2013-05-31 2013-08-21 苏州市金翔钛设备有限公司 Novel continuous reaction kettle
CN109482120A (en) * 2018-12-14 2019-03-19 南通三圣石墨设备科技股份有限公司 Graphite heat exchanger and method built in a kind of novel reaction kettle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103252204A (en) * 2013-05-31 2013-08-21 苏州市金翔钛设备有限公司 Novel continuous reaction kettle
CN109482120A (en) * 2018-12-14 2019-03-19 南通三圣石墨设备科技股份有限公司 Graphite heat exchanger and method built in a kind of novel reaction kettle

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Granted publication date: 20120822

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