CN107519825B - Horizontal gas-solid reactor - Google Patents
Horizontal gas-solid reactor Download PDFInfo
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- CN107519825B CN107519825B CN201710981689.4A CN201710981689A CN107519825B CN 107519825 B CN107519825 B CN 107519825B CN 201710981689 A CN201710981689 A CN 201710981689A CN 107519825 B CN107519825 B CN 107519825B
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- reactor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/08—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles
- B01J8/10—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles moved by stirrers or by rotary drums or rotary receptacles or endless belts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/08—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles
- B01J8/087—Heating or cooling the reactor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/00106—Controlling the temperature by indirect heat exchange
- B01J2208/00168—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles
- B01J2208/00212—Plates; Jackets; Cylinders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/00477—Controlling the temperature by thermal insulation means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00796—Details of the reactor or of the particulate material
- B01J2208/00823—Mixing elements
- B01J2208/00831—Stationary elements
- B01J2208/0084—Stationary elements inside the bed, e.g. baffles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00796—Details of the reactor or of the particulate material
- B01J2208/00823—Mixing elements
- B01J2208/00858—Moving elements
- B01J2208/00867—Moving elements inside the bed, e.g. rotary mixer
Abstract
A horizontal gas-solid reactor mainly comprises a horizontal reactor barrel and a stirring device arranged in the horizontal reactor barrel, wherein a heating sleeve and a heat insulation layer are respectively arranged at the bottom and the top of the reactor barrel, the stirring device comprises a stirring motor, a stirring shaft, baffles and shoveling plates, the stirring motor drives the stirring shaft penetrating through the reactor barrel to rotate at the outer side of the reactor barrel, the baffles are uniformly arranged on the stirring shaft at intervals, the front end part of each baffle is fixedly connected with one shoveling plate, the direction of the shoveling plates on adjacent baffles is opposite to that of 180 degrees, and each baffle is in 90-degree cross connection with the shoveling plates on the adjacent baffles. The method is insensitive to the particle size distribution of solid particles, has no requirement on the flow rate of raw material gas, and has the advantages of good controllability of the reaction process, high operation stability and safety, low energy consumption, better reaction effect and improved reaction efficiency.
Description
Technical Field
The invention relates to a reactor for chemical reaction of gas and solid, in particular to a horizontal gas-solid reactor, belonging to the technical field of chemical equipment.
Background
At present, it is known that in chemical industry, a fluidized bed, a fixed bed or the like type reactor is often used for gas-solid phase reaction.
The fixed bed reactor is mainly used for the gas-solid phase catalytic reaction process, has simple structure, small volume, stable operation and convenient control, is easy to realize large-scale and continuous production, but the bed temperature is not well controlled, the temperature runaway is easy, and the size of solid particles has requirements.
The fluidized bed reactor is mostly in a non-catalytic gas-solid phase reaction process, has good heat transfer effect, easy temperature control, high mass and heat transfer efficiency and large unit equipment production capacity, is suitable for the production requirement of large chemical engineering, has certain requirements on the size of solid particles in the reactor, and requires overlarge gas flow velocity if the particles are too large, thus causing poor gas-solid contact and low reaction efficiency, and if the particles are too small, a large amount of particles can be brought out of the reactor by gas, thus causing pipeline blockage or difficult recovery.
Disclosure of Invention
In order to overcome the defects that the existing gas-solid reactor has higher requirement on solid particle size distribution and limited application range, the invention provides a horizontal gas-solid reactor which is insensitive to the particle size distribution of solid particles, has no requirement on the flow rate of raw material gas, and has the advantages of good controllability of the reaction process, high operation stability and safety, low energy consumption, better reaction effect and improved reaction efficiency.
The technical scheme adopted by the invention for solving the technical problems is as follows: a horizontal gas-solid reactor mainly comprises a horizontal reactor barrel and a stirring device arranged in the horizontal reactor barrel, wherein a heating sleeve and a heat insulation layer are respectively arranged at the bottom and the top of the reactor barrel, the stirring device comprises a stirring motor, a stirring shaft, baffles and shoveling plates, the stirring motor drives the stirring shaft penetrating through the reactor barrel to rotate at the outer side of the reactor barrel, the baffles are uniformly arranged on the stirring shaft at intervals, the front end part of each baffle is fixedly connected with one shoveling plate, the direction of the shoveling plates on adjacent baffles is opposite to that of 180 degrees, and each baffle is in 90-degree cross connection with the shoveling plates on the adjacent baffles.
Compared with the existing reactor for chemical reaction between gas and solid, the horizontal gas-solid reactor provided by the invention has the advantages that the structure of the provided reactor cylinder is horizontal, and the heating sleeve and the heat insulation layer are respectively arranged at the lower part and the upper part of the reactor cylinder, so that the heat transfer of a reaction area is enhanced by utilizing the convection characteristic of heated gas, the heating of the reactor is more reasonable, the temperature is easier to control, the energy consumption is reduced, and the stability and the safety of operation are improved; the baffle and the shoveling plate of the stirring device are designed, so that gas-solid phase materials in the reactor can be mixed more uniformly and contacted more fully, and the reaction efficiency is improved; meanwhile, the reactor is not sensitive to the particle size distribution of solid particles any more, large or small particles can react, and sintering or caking and other conditions can not occur; in addition, the stirring device can also play a role of a distributor for gas, so that the gas can be better dispersed and uniformly distributed backwards along the baffle on the stirring shaft, and dead angles in the reactor are reduced; the flow rate of the raw material gas is not required, the similar effect of the fluidized bed can be achieved even if the flow rate of the gas is very low, the retention time is longer, and the subsequent recovery operation difficulty is reduced; in addition, simple structure, it is convenient to make the maintenance, and the operation is easily controlled.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a front sectional view of a reactor according to an embodiment of the present invention.
Fig. 2 is a cross-sectional view taken at a in fig. 1.
Fig. 3 is a cross-sectional view at B in fig. 1.
In the figure: 1. stirring motor, 2, (mixing) shaft, 3, intake pipe, 4, feed inlet, 5, heat preservation, 6, top baffle, 7, blast pipe, 8, bin outlet, 9, heating jacket, 10, baffle, 11, flight, 12, reactor barrel, 13, connecting rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, belong to the scope of the present invention.
Fig. 1 to 3 show schematic structural diagrams of a preferred embodiment of the present invention, in which a horizontal gas-solid reactor is mainly composed of a horizontal reactor cylinder 12 and a stirring device disposed inside the horizontal reactor cylinder, a heating jacket 9 and an insulating layer 5 are respectively disposed at the bottom and the top of the reactor cylinder 12, and the heating jacket 9 and the insulating layer 5 are respectively disposed at the lower part and the upper part of the reactor cylinder 12, such a design utilizes the convection characteristic of heated gas, so as to enhance the heat transfer of a reaction region, make the heating of the reactor more reasonable, make the temperature more controllable, reduce energy consumption, and improve the stability and safety of operation; the stirring device comprises a stirring motor 1, a stirring shaft 2, baffles 10 and a shoveling plate 11, wherein the stirring motor 1 drives the stirring shaft 2 penetrating through the reactor cylinder 12 to rotate at the outer side part of the reactor cylinder 12, and the baffles 10 are uniformly arranged on the stirring shaft 2 at intervals; referring to fig. 2, the front end of each baffle plate 10 is fixedly connected with a shovelling plate 11, in the embodiment, the shovelling plates 11 and the baffle plates 10 are fixed in a way that the shovelling plates 11 are fixed on the stirring shaft 2 through connecting rods 13, the shovelling plates 11 are fixed at the front ends of the baffle plates 10 and at the same time are fixed at the front ends of the connecting rods 13, the connecting rods 13 are fixed on the baffle plates 10, the rear ends of the connecting rods 13 are fixedly connected on the stirring shaft 2, the shovelling plates 11 on adjacent baffle plates 10 are opposite in direction and form 180 degrees, and each baffle plate 10 is connected with the shovelling plates 11 on; the baffle plate 10 can increase the contact time of gas and solid in the reactor, and similarly, the design of the shovelling plates 11 is to shovelle the solid particles at the bottom by stirring, so as to strengthen the contact effect of gas and solid phases, and the direction of the adjacent shovelling plates 11 is set to be opposite, so that the stirring strength of the reactor is increased, the gas and solid phase contact efficiency in the reactor is improved, and the reaction is facilitated.
Specifically, in this embodiment, the reactor cylinder 12 may be a horizontal cylindrical structure, the gas inlet pipe 3 and the gas outlet pipe 7 are respectively disposed at two ends of the top of the reactor cylinder 12, and the reactor inlet 4 and the reactor outlet 8 are respectively disposed at the top and the side of the reactor.
Further, referring to fig. 3, top baffles 6 are further arranged on two sides above the inside of the reactor barrel 12, the top baffles 6 extend from the reactor barrel 12 to a position below the horizontal center line of the reactor barrel 12, and the stirring shaft 2 passes through the top baffles; the baffle plate 10 is in a circular sheet shape, the shoveling plate 11 is in a rectangular sheet shape, and the top baffle plate 6 is in a hollow large semicircular sheet shape; the area of a hollow gap formed at the position where the stirring shaft 2 passes through the top baffle 6 is smaller than that of the baffle 10; the top baffle 6 is mainly arranged to prevent the gas entering the reactor barrel 12 from directly passing through the upper part of the reactor and being discharged out of the reactor without participating in the reaction, but to allow the gas to enter the reactor and be fully mixed with the solid for reaction.
Typically, the feed opening 4 and the discharge opening 8 are sealed by means of flanged caps. The lid is then opened for use.
In the preparation of octafluoropropane (C 3 F 8) from hexafluoropropylene (C 3 F 6) and cobalt trifluoride (CoF 3), the procedure of using the reactor of the present invention is as follows:
Before the reaction, vacuumizing a reactor cylinder 12, adding a certain amount of cobalt trifluoride solid particles into the reactor cylinder 12 through a feed inlet 4, sealing a feed inlet through a flange cover, purging the reactor by using nitrogen, and starting to heat the reactor, wherein the reaction process conditions include that the temperature ranges from 350 ℃ to 500 ℃, the pressure of the reactor ranges from 1 bar to 3bar, when the reactor reaches the process conditions, hexafluoropropylene (C 3 F 6) is preheated from a gas inlet 3 and introduced into the reactor to be fully mixed with the cobalt trifluoride (CoF 3) solid particles for catalytic reaction, octafluoropropane (C 3 F 8) products are generated, the products are discharged from the reactor and further purified to obtain high-purity products, after the reaction is finished, the cobalt trifluoride (CoF 3) is reduced to cobalt difluoride (CoF 2), at the moment, the temperature of the reactor is reduced to 250 ℃ to 350 ℃, after the temperature reaches the temperature, the alkali fluoride (F 2) is introduced into the reactor, the alkali fluoride (CoF 3) and the cobalt trifluoride (CoF) is reacted to prepare the cobalt trifluoride solid particles, the cobalt trifluoride (CoF 4625) for preparing the high-purity products, and the cobalt trifluoride (C363, the cobalt trifluoride particles are subjected to the subsequent dehydration reaction, and the dehydration reaction, wherein the rectification reaction can be controlled by the rectification reaction pressure of the rectification reaction steps of the high-3, 366324, and the high-purity products can be controlled.
The use process shows that the horizontal gas-solid reactor has the advantages of wide application range, simple structure, convenient manufacture and maintenance, low manufacturing cost, easy control of operation and operation, insensitivity to the particle size distribution of solid particles, no requirement on the flow rate of raw material gas, good controllability of the reaction process, high operation stability and safety, low energy consumption, better reaction effect and high reaction efficiency.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiment according to the technical spirit of the present invention are included in the protection scope of the present invention.
Claims (7)
1. the utility model provides a horizontal gas-solid reactor, mainly by horizontal reactor barrel (12) and set up the agitating unit in its inside and constitute characterized by: the reactor cylinder body (12) bottom and top are equipped with heating jacket (9) and heat preservation (5) respectively, agitating unit include agitator motor (1), (mixing) shaft (2), baffle (10) and shoveling plate (11), agitator motor (1) outside reactor cylinder body (12) outside drive run through in the inside (mixing) shaft (2) of reactor cylinder body (12) rotatory, baffle (10) are equipped with uniformly at the interval on (mixing) shaft (2), the preceding tip of every baffle (10) all fixed connection shoveling plate (11), shoveling plate (11) opposite direction on adjacent baffle (10) is 180, every baffle (10) becomes 90 cross connection with shoveling plate (11) above it.
2. The horizontal gas-solid reactor according to claim 1, wherein: the shoveling plate (11) is fixed on the stirring shaft (2) through a connecting rod (13).
3. The horizontal gas-solid reactor according to claim 1 or 2, wherein: the reactor barrel (12) is of a horizontal cylindrical structure, an air inlet pipe (3) and an air outlet pipe (7) are respectively arranged at two ends of the top of the reactor barrel (12), and a reactor feed inlet (4) and a reactor discharge outlet (8) are respectively arranged at the top and the side of the reactor.
4. The horizontal gas-solid reactor according to claim 3, wherein: and top baffles (6) are arranged on two sides above the inside of the reactor cylinder (12), the top baffles (6) extend from the reactor cylinder (12) to the position below the horizontal central line of the reactor cylinder (12), and the stirring shaft (2) passes through the top baffles.
5. The horizontal gas-solid reactor according to claim 3, wherein: the feed inlet (4) and the discharge outlet (8) are sealed by flange covers.
6. The horizontal gas-solid reactor according to claim 4, wherein: the baffle (10) is in a circular sheet shape, the shoveling plate (11) is in a rectangular sheet shape, and the top baffle (6) is in a hollow large semicircular sheet shape.
7. The horizontal gas-solid reactor according to claim 4, wherein: the area of a hollow gap formed at the position where the stirring shaft (2) penetrates through the top baffle (6) is smaller than that of the baffle (10).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710360776.8A CN107159064A (en) | 2017-05-19 | 2017-05-19 | A kind of horizontal gas solid reactor |
| CN2017103607768 | 2017-05-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107519825A CN107519825A (en) | 2017-12-29 |
| CN107519825B true CN107519825B (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710360776.8A Pending CN107159064A (en) | 2017-05-19 | 2017-05-19 | A kind of horizontal gas solid reactor |
| CN201710981689.4A Active CN107519825B (en) | 2017-05-19 | 2017-10-20 | Horizontal gas-solid reactor |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201710360776.8A Pending CN107159064A (en) | 2017-05-19 | 2017-05-19 | A kind of horizontal gas solid reactor |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108889597A (en) * | 2018-07-20 | 2018-11-27 | 云南昆船烟草设备有限公司 | A kind of polygon roller-type tobacco grading sieving machine |
| CN111111569A (en) * | 2018-10-30 | 2020-05-08 | 中国石油化工股份有限公司 | Apparatus for preparing molecular sieve |
| CN111111568A (en) * | 2018-10-30 | 2020-05-08 | 中国石油化工股份有限公司 | Gas-solid reactor for preparing molecular sieve and equipment for preparing molecular sieve |
| CN115475578A (en) * | 2022-08-30 | 2022-12-16 | 上海交通大学 | Horizontal gas-solid thermochemical storage and heat reaction device with synergistic stirring function |
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| CN103820253A (en) * | 2014-02-12 | 2014-05-28 | 浙江赞宇科技股份有限公司 | Process and device for continuously preparing powdery MES (fatty acid methyl ester sulfonate) particles |
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| CN204503006U (en) * | 2014-12-24 | 2015-07-29 | 江苏常州酞青新材料科技有限公司 | A kind of novel double-layer reactor |
| CN205761200U (en) * | 2016-06-14 | 2016-12-07 | 杭州新元化工技术开发有限公司 | A kind of rotary reactor being applicable to gas-solid phase reaction |
| CN205797218U (en) * | 2016-07-12 | 2016-12-14 | 山东博瑞新材料科技有限公司 | A kind of powder solid reactor |
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2017
- 2017-05-19 CN CN201710360776.8A patent/CN107159064A/en active Pending
- 2017-10-20 CN CN201710981689.4A patent/CN107519825B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201892206U (en) * | 2010-11-26 | 2011-07-06 | 福建省光泽县旺众竹业有限公司 | Continuous rotary device integrating biomass pyrolysis and carbonization and boiler heating |
| CN202010554U (en) * | 2011-03-10 | 2011-10-19 | 皇廷(桐城)工贸有限公司 | Multifunctional paint reaction kettle |
| CN102583365A (en) * | 2011-12-29 | 2012-07-18 | 淮北市森化碳吸附剂有限责任公司 | High-efficiency and energy-saving horizontal rotary activation furnace |
| CN102583371A (en) * | 2011-12-29 | 2012-07-18 | 淮北市森化碳吸附剂有限责任公司 | Material high-efficiency turning device for horizontal rotary activation furnace |
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| CN103820253A (en) * | 2014-02-12 | 2014-05-28 | 浙江赞宇科技股份有限公司 | Process and device for continuously preparing powdery MES (fatty acid methyl ester sulfonate) particles |
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| CN205761200U (en) * | 2016-06-14 | 2016-12-07 | 杭州新元化工技术开发有限公司 | A kind of rotary reactor being applicable to gas-solid phase reaction |
| CN205797218U (en) * | 2016-07-12 | 2016-12-14 | 山东博瑞新材料科技有限公司 | A kind of powder solid reactor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107519825A (en) | 2017-12-29 |
| CN107159064A (en) | 2017-09-15 |
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Inventor after: Lei Haiping Inventor after: Zhang Jianchang Inventor before: Zhang Jianchang Inventor before: Lei Haiping |
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