CN210874637U - Tail gas treatment device of cold hydrogenation system - Google Patents
Tail gas treatment device of cold hydrogenation system Download PDFInfo
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- CN210874637U CN210874637U CN201921543125.3U CN201921543125U CN210874637U CN 210874637 U CN210874637 U CN 210874637U CN 201921543125 U CN201921543125 U CN 201921543125U CN 210874637 U CN210874637 U CN 210874637U
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- tail gas
- lower shell
- protective layer
- treatment device
- cold hydrogenation
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Abstract
The utility model discloses a tail gas treatment device of a cold hydrogenation system, which comprises a lower shell, wherein the lower shell is in an inverted wine bottle shape, a protective layer is arranged outside the lower shell, an air suction port is arranged on the upper part of the left side of the protective layer, a cooling pipe is arranged in the protective layer, an inlet of the cooling pipe is arranged on the left side of the lower part of the protective layer, an outlet of the cooling pipe is arranged on the right side of the upper part of the protective layer, a tail gas inlet pipe is arranged above the inlet, the tail gas inlet pipe extends into the lower shell, the part of the tail gas inlet pipe, which is positioned in the lower shell, is in a horn shape, a partition plate is arranged on the upper part of the lower shell, a plurality of circular holes are uniformly distributed on the partition plate, a boss is arranged above the; the utility model has the advantages of convenient recovery and prolonged service life of the equipment.
Description
Technical Field
The utility model belongs to the technical field of polycrystalline silicon preparation, concretely relates to cold hydrogenation system tail gas processing apparatus.
Background
Polycrystalline silicon is an important raw material for producing solar cells, the production scale of the polycrystalline silicon is rapidly developed at present when new energy is vigorously developed, a Siemens method is used as a main method for producing the polycrystalline silicon, chlorosilane slag slurry is inevitably generated in a corresponding reaction device and a purification process, solid impurities are silicon powder, and the silicon powder which does not participate in the reaction and has small particle size is easy to impact recovery equipment due to high flow rate of tail gas during recovery, so that the service life of the equipment is shortened, frequent maintenance operation is caused, and meanwhile, a tail gas filtering system adopted is often frequently replaced due to high temperature resistance, corrosion resistance and particle impact resistance; in order to solve the problems, it is necessary to develop a tail gas treatment device of a cold hydrogenation system, which is convenient to recover and prolongs the service life of equipment.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defects of the prior art and providing a tail gas treatment device of a cold hydrogenation system, which is convenient to recycle and prolongs the service life of equipment.
The purpose of the utility model is realized like this: the utility model provides a cold hydrogenation system tail gas processing apparatus, which comprises a lower shell, the casing is the beverage bottle form of invering down, the outside of casing is provided with the inoxidizing coating down, the left side upper portion of inoxidizing coating is provided with the extraction opening, be provided with the cooling tube in the inoxidizing coating, the cooling tube adopts spiral structure, the lower part left side of inoxidizing coating is provided with the import of cooling tube, the upper portion right side of inoxidizing coating is provided with the export of cooling tube, the top of import is provided with the tail gas inlet pipe, the tail gas inlet pipe stretches into the inside of casing down, the part that the tail gas inlet pipe is located the inferior valve internal is tubaeform, the upper portion of casing is provided with the baffle down, the equipartition is provided with a plurality of circular ports on the baffle.
Furthermore, a plurality of mounting supports are uniformly distributed on the upper portion of the lower shell outside the protective layer, a plurality of material blocking plates are arranged inside the upper portion of the lower shell, acute angles are formed between the material blocking plates and a vertical plane, and the area ratio of cylindrical surfaces of all parts of the lower shell from top to bottom is 12:2: 1.
Further, an air leakage detection device, a pressure gauge and a thermometer are arranged on the protective layer.
Furthermore, both ends of the cooling pipe are respectively provided with a pressure gauge, a thermometer and a flow detection gauge.
Further, the ratio of the pipe sectional area of the tail gas feeding pipe to the sectional area of the tail end of the feeding pipe is 4: 1.
Furthermore, a layer of soft corrosion-resistant material is arranged on the boss.
Furthermore, the air filtering device adopts a ceramic structure, and an activated carbon adsorbent is arranged in the air filtering device.
Further, the lower shell, the partition plate and the upper shell are sealed mutually.
Since the technical scheme is used, the beneficial effects of the utility model are that:
(1) through the lower shell and the tail gas feeding pipe, the flow velocity of waste gas to be treated entering from the tail gas feeding pipe is changed through the change of the sectional area of the tail gas feeding pipe, so that the impact of the waste gas on the lower shell is reduced, and the lower shell is in a shape of a wine bottle, so that the flowing velocity of the gas in the lower shell is reduced in the upward movement process of the gas in the lower shell, the particles in the gas are convenient to settle, and the recovery is convenient;
(2) through the gas filtering device who sets up, the life of equipment has been prolonged to the maintenance of being convenient for, simultaneously, through the striker plate that sets up, further make the granule in the gas subside, through inoxidizing coating and the cooling tube that sets up, when making tail gas obtain the temperature drop, prevented because the equipment damage that particle wearing and tearing caused in the tail gas, be convenient for discover and overhaul in the emergency, it is safer to use.
Drawings
Fig. 1 is a cross-sectional view of the present invention.
Fig. 2 is a partially enlarged view of fig. 1.
In the figure: 1. the device comprises a lower shell 11, a mounting bracket 12, a baffle plate 2, a protective layer 21, an extraction opening 3, a cooling pipe 31, an inlet 32, an outlet 4, a tail gas feeding pipe 5, a partition plate 51, a boss 6, a gas filtering device 7, an upper shell 71 and a tail gas outlet.
Detailed Description
The technical solution of the present invention is further described in detail by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1 and 2, the tail gas treatment device of the cold hydrogenation system comprises a lower shell 1, wherein the lower shell 1 is in an inverted wine bottle shape, and a plurality of mounting brackets 11 are uniformly distributed on the upper part of the lower shell 1 outside a protective layer 2, so that the lower shell 1 can be conveniently mounted on the brackets, and equipment can be conveniently mounted; a plurality of material baffle plates 12 are arranged inside the upper part of the lower shell 1, the material baffle plates 12 and the vertical plane form an acute angle, so that particles in gas entering the lower shell 1 are blocked to form sedimentation, and meanwhile, the material baffle plates 12 and the vertical plane form an acute angle to prevent the particles from being accumulated on the material baffle plates 12; because the lower shell 1 is arranged in an inverted wine bottle shape, a plurality of different cylindrical surfaces are sequentially arranged from top to bottom, the area ratio of the cylindrical surfaces of all the parts of the lower shell 1 from top to bottom is 12:2:1, and the cylindrical surfaces with different sectional areas are arranged, so that the flow speed of tail gas is slower and slower in the upward movement process, the impact of the tail gas on equipment is reduced, the service life of the equipment is prolonged, meanwhile, the outer surface area of the lower shell 1 is enlarged, and the heat exchange of the tail gas is facilitated; the outer part of the lower shell 1 is provided with a protective layer 2, the upper part of the left side of the protective layer 2 is provided with an extraction opening 21, the protective layer 2 is provided with an air leakage detection device, a pressure gauge and a thermometer, when the lower shell 1 is partially damaged due to the scouring of tail gas, the damaged part can be found in time through the air leakage detection device, the pressure gauge and the thermometer on the protective layer 2, so that the equipment is safe to operate, and the safety of the equipment in use is improved; a cooling pipe 3 is arranged in the protective layer 2, the cooling pipe 3 adopts a spiral structure, the left side of the lower part of the protective layer 2 is provided with an inlet 31 of the cooling pipe 3, the right side of the upper part of the protective layer 2 is provided with an outlet 32 of the cooling pipe 3, and two ends of the cooling pipe 3 are respectively provided with a pressure gauge, a temperature gauge and a flow detection gauge for cooling the tail gas in the lower shell 1; a tail gas feeding pipe 4 is arranged above the inlet 31, the tail gas feeding pipe 4 extends into the lower shell 1, the part of the tail gas feeding pipe 4, which is positioned in the lower shell 1, is in a horn shape, the ratio of the pipeline sectional area of the tail gas feeding pipe 4 to the sectional area of the tail end of the feeding pipe 4 is 4:1, so that the pressure of tail gas in the tail gas feeding pipe 4 is reduced, the speed is reduced, the impact on the lower shell 1 is reduced, and the service life of the equipment is prolonged; the upper portion of casing 1 is provided with baffle 5 down, the equipartition is provided with a plurality of circular ports on the baffle 5, the top of circular port is provided with boss 51, be provided with the soft corrosion resistant material of one deck on the boss 51, make boss 51 and strain gas device 6 ability in close connection, it causes untreated tail gas to spill over and the phenomenon of the tail gas treatment failure who forms takes place to prevent leaking gas, be provided with on the boss 51 and strain gas device 6, strain gas device 6 and adopt ceramic formula structure, its inside is provided with the activated carbon adsorbent, owing to adopt ceramic formula structure, it is inseparable with boss 51 joint under the dead weight to make gas device 6, the top of straining gas device 6 is provided with casing 7, the upper portion center of going up casing 7 is provided with tail gas outlet 71, upward there is sufficient space in the casing 7, a tail.
The lower shell 1, the partition plate 5 and the upper shell 7 are sealed with each other.
When the utility model is used, firstly, the temperature in the space between the lower shell 1, the clapboard 5 and the upper shell 7 is kept at a certain value under the action of the cooling pipe 3; then, the tail gas to be treated is put into the lower shell 1 through the feeding pipe 4, and the tail gas to be treated has higher temperature and air pressure and contains granular silicon powder which does not participate in reaction, so that the flow velocity of the tail gas to be treated entering the lower shell 1 is reduced by arranging the feeding pipe 4 into a horn shape, the impact of the tail gas to be treated on the lower shell 1 is reduced, the service life of equipment is prolonged, and meanwhile, the lower shell 1 is arranged into an inverted wine bottle shape, so that the speed of the tail gas to be treated is continuously reduced in the upward movement process, and the sedimentation of internal particles is facilitated; finally, the tail gas to be treated is adsorbed by the activated carbon under the action of the gas filtering device 6, so that the quantity of particles in the tail gas is reduced, and the subsequent recycling is facilitated; in the whole using process, the change of the flow velocity caused by the change of the sectional area of the gas in the moving process is fully utilized, the damage caused by the impact of the high-speed particle-containing gas on the equipment is prevented, and the problems of the equipment are timely found and rectified under the protection effect of the protective layer 2, so that the equipment can safely and effectively run.
Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can be modified or replaced with other embodiments without departing from the spirit and scope of the present invention, and all such modifications and equivalent substitutions are intended to be encompassed by the scope of the following claims.
Claims (8)
1. The utility model provides a cold hydrogenation tail gas processing apparatus, includes casing (1) down, its characterized in that: the lower shell (1) is in an inverted wine bottle shape, a protective layer (2) is arranged outside the lower shell (1), an air suction opening (21) is formed in the upper portion of the left side of the protective layer (2), a cooling pipe (3) is arranged in the protective layer (2), the cooling pipe (3) adopts a spiral structure, an inlet (31) of the cooling pipe (3) is formed in the left side of the lower portion of the protective layer (2), an outlet (32) of the cooling pipe (3) is formed in the right side of the upper portion of the protective layer (2), a tail gas inlet pipe (4) is arranged above the inlet (31), the tail gas inlet pipe (4) extends into the lower shell (1), the portion, located in the lower shell (1), of the tail gas inlet pipe (4) is in a horn shape, a partition plate (5) is arranged on the upper portion of the lower shell (1), a plurality of circular holes are uniformly distributed on the partition plate (5), a boss, an upper shell (7) is arranged above the air filtering device (6), and a tail gas outlet (71) is arranged at the center of the upper part of the upper shell (7).
2. The cold hydrogenation system tail gas treatment device according to claim 1, wherein: the upper part of the lower shell (1) is uniformly provided with a plurality of mounting brackets (11) outside the protective layer (2), the inner part of the upper part of the lower shell (1) is provided with a plurality of material baffle plates (12), the material baffle plates (12) form acute angles with a vertical plane, and the area ratio of the cylindrical surface of each part of the lower shell (1) from top to bottom is 12:2: 1.
3. The cold hydrogenation system tail gas treatment device according to claim 1, wherein: an air leakage detection device, a pressure gauge and a thermometer are arranged on the protective layer (2).
4. The cold hydrogenation system tail gas treatment device according to claim 1, wherein: the two ends of the cooling pipe (3) are respectively provided with a pressure gauge, a thermometer and a flow detection gauge.
5. The cold hydrogenation system tail gas treatment device according to claim 1, wherein: the ratio of the pipeline sectional area of the tail gas feeding pipe (4) to the sectional area of the tail end of the feeding pipe (4) is 4: 1.
6. The cold hydrogenation system tail gas treatment device according to claim 1, wherein: a layer of soft corrosion-resistant material is arranged on the boss (51).
7. The cold hydrogenation system tail gas treatment device according to claim 1, wherein: the air filtering device (6) adopts a ceramic structure, and an activated carbon adsorbent is arranged in the air filtering device.
8. The cold hydrogenation system tail gas treatment device according to claim 1, wherein: the lower shell (1), the partition plate (5) and the upper shell (7) are sealed mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921543125.3U CN210874637U (en) | 2019-09-17 | 2019-09-17 | Tail gas treatment device of cold hydrogenation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921543125.3U CN210874637U (en) | 2019-09-17 | 2019-09-17 | Tail gas treatment device of cold hydrogenation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210874637U true CN210874637U (en) | 2020-06-30 |
Family
ID=71335956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921543125.3U Active CN210874637U (en) | 2019-09-17 | 2019-09-17 | Tail gas treatment device of cold hydrogenation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210874637U (en) |
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2019
- 2019-09-17 CN CN201921543125.3U patent/CN210874637U/en active Active
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