CN214390098U - Automatic fine powder returning device for organic silicon production - Google Patents
Automatic fine powder returning device for organic silicon production Download PDFInfo
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- CN214390098U CN214390098U CN202022763746.1U CN202022763746U CN214390098U CN 214390098 U CN214390098 U CN 214390098U CN 202022763746 U CN202022763746 U CN 202022763746U CN 214390098 U CN214390098 U CN 214390098U
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Abstract
The utility model provides a fine powder automatic returning device for organic silicon production, which comprises a controller and a fine dust separation system, wherein the fine dust separation system comprises an air pressure compensation device and a cyclone separator which are communicated with a fine powder tank; the feeding hole of the cyclone separator is used for being connected with the discharging pipe of the fluidized bed reactor, the top of the cyclone separator is provided with an air outlet, and the bottom of the cyclone separator is provided with a discharging hole; the bottom of the cyclone separator is provided with a hopper communicated with a discharge port, a weighing module electrically connected with a controller is arranged in the hopper, the discharge port of the hopper is connected with a fine powder tank, an air pressure sensor and the weighing module electrically connected with the controller are arranged in the fine powder tank, and the discharge port at the bottom of the fine powder tank is communicated with the fluidized bed reactor; and the outlets of the cyclone separator and the fine powder tank are provided with a disk valve. The fine dust separation system automatically returns fine powder particles to the bed to work, so that the operation intensity of central control is reduced, manual misoperation of the central control is avoided, and the operation intensity of operators on operation posts is reduced.
Description
Technical Field
The utility model relates to a chemical production field, in particular to a fine powder automatic returning device for organosilicon production.
Background
With the continuous development of the domestic organic silicon industry, the domestic monomer enterprises have a rapid growth mode at the beginning of the century, the current monomer enterprises use a direct synthesis mode of silicon and methyl chloride, U-shaped beds used at home and abroad are all provided with an expanded end at the top of a reactor, so that coarse particles entering a free airspace return to the bed in time, the catalyst carrying amount is reduced, the dust removal load of a dust remover is reduced, large particles directly return to the bed, medium particles intermittently return to the bed, and the dust content in gas entering the next workshop section is about one fifth of that of the current device. The fine dust to be removed can be discharged out of the reaction system in time. The fine powder is defined as dust particles having an average particle diameter of 5 to 30 μm.
The working procedure of removing fine dust for the U-shaped bed among the prior art relies on the manual parameter setting of operation personnel mostly for the frequent working strength of operation post operation personnel is high, and the mode that fine dust was detached to the parameter of operation personnel manual setting has the problem that removes the instability of fine dust system, and the effect of detaching fine dust is poor.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned problem among the prior art, the utility model provides an automatic bed device that returns of farine for organosilicon production, it has solved the dust pelletizing system among the prior art and has relied on the manual mode that sets up the parameter of manual operation to have the unstable problem of frequent dust removal effect of operation.
In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows:
the fine powder automatic returning device for producing the organic silicon comprises a controller and a fine powder separating system, wherein the fine powder separating system comprises an air pressure compensating device and a cyclone separator, and the air pressure compensating device is electrically connected with the controller; the feeding hole of the cyclone separator is used for being connected with the discharging pipe of the fluidized bed reactor, the top of the cyclone separator is provided with an air outlet, and the bottom of the cyclone separator is provided with a discharging hole; the bottom of the cyclone separator is provided with a hopper communicated with a discharge port, a weighing module electrically connected with a controller is arranged in the hopper, the discharge port of the hopper is connected with a fine powder tank, an air pressure sensor and the weighing module electrically connected with the controller are arranged in the fine powder tank, an air pressure compensation device is communicated with the fine powder tank, and the discharge port at the bottom of the fine powder tank is communicated with the fluidized bed reactor; and the outlets of the hopper and the fine powder tank are respectively provided with a disk valve which is electrically connected with the controller.
In the process of producing the organic silicon, starting a fine dust separation system, connecting a discharge pipe of a fluidized bed reactor with a feed inlet of a cyclone separator, wherein the cyclone separator is used for discharging fine powder particles in the discharge pipe of the fluidized bed reactor into a fine powder tank positioned at the bottom; when the weighing module detects that the weight of the fine powder particles in the hopper is larger than a preset value, the controller opens a disc valve positioned at the bottom of the hopper to discharge the fine powder particles in the hopper into a fine powder tank; when the weighing module and the air pressure sensor monitor that the weight or the air pressure of fine powder particles in the hopper or the fine powder tank reaches a preset value, the controller opens a disc valve positioned at the bottom of the fine powder tank, the fine powder particles in the fine powder tank are discharged into a material return pipe of the fluidized bed reactor, the automatic return of the fine powder particles to the bed is realized, and the arrangement of the controller, the air pressure sensor and the weighing module enables the fine dust separation system to automatically return the fine powder particles to the bed to work, so that the operation intensity of operation post operators is reduced, and the system stability is achieved; the air pressure compensation device is used for providing air pressure for the fine powder tank, and the fine powder tank is high in discharging speed, clean and thorough.
Furthermore, in order to control the discharging between the hopper and the fine powder tank conveniently, a switch valve electrically connected with the controller is arranged between the discharge port of the hopper and the fine powder tank.
Furthermore, in order to realize the continuous return of the fine powder to the bed, two sets of fine dust separation systems are provided, and discharge ports at the bottoms of the fine powder tanks in the two sets of fine dust separation systems are communicated with the fluidized bed reactor; the air outlet of the cyclone separator of the first set of fine dust separation system is communicated with the feed inlet of the cyclone separator of the second set of fine dust separation system. The arrangement of the two fine dust separation systems not only realizes the continuous return of fine powder particles to the bed and improves the working efficiency of the return of the fine powder particles to the bed, but also can perform secondary separation on fine powder in a return pipe of the fluidized bed reactor, so that the separation is more thorough.
Furthermore, an air pressure balance valve is arranged between the two fine powder tanks, and the two fine powder tanks are communicated through the air pressure balance valve. In the switching process of the two fine powder tanks, one fine powder tank needs to be decompressed, the other fine powder tank needs to be pressurized, and the air pressure balancing valve can balance the air pressure in the two fine powder tanks, so that the air consumption and the inflation time of the air pressure compensation device are saved.
Furthermore, the fine powder automatic returning device also comprises a fine powder emptying filter, the tops of the two fine powder tanks are respectively provided with a pressure release valve, and the pressure release valves are communicated with the fine powder emptying filter through pipelines. After the fine powder particles in the hopper enter the two fine powder tanks, the air pressure in the two fine powder tanks can be gradually increased, and the pressure release valve can release air for the two fine powder tanks, so that the air pressure in the two fine powder tanks is maintained in a safe value range, and dangers are avoided; the fine powder emptying filter can filter the gas discharged by the pressure release valve, filter and collect fine powder particles in the gas, and avoid polluting the surrounding environment.
Further, as a specific setting mode of the air pressure compensation device, the air pressure compensation device is an inflator pump, and inflation gas is nitrogen.
Further, the automatic fine powder returning device further comprises a recovery system, the recovery device comprises a recovery cyclone separator, a feed inlet of the recovery cyclone separator is connected with an air outlet of the second set of cyclone separator, a discharge outlet of the recovery cyclone separator is connected with a fine powder recovery tank, and the fine powder recovery tank is communicated with a fine powder tank in the first set of fine dust separation system. The recovery system is used for recovering the fine dust separated by the fine dust separation system, so that the fine dust can be prevented from being discharged into the air to pollute the environment, the fine dust can be further recovered, and the production and manufacturing cost is saved.
Furthermore, a connecting pipeline in a shape like a Chinese character 'ji' is arranged between the feed inlet of the cyclone separator and the discharge pipe of the fluidized bed reactor; the connecting pipeline prolongs the distance between the feeding hole of the cyclone separator and the discharging pipe of the fluidized bed reactor, and slows down the speed of the discharging pipe of the fluidized bed reactor entering the feeding hole of the cyclone separator, so that the separation effect of the cyclone separator is better.
The utility model has the advantages that: the arrangement of the controller, the air pressure sensor and the weighing module in the fine powder automatic return bed device enables the fine dust separation system to automatically return fine powder particles to the bed, reduces the operation intensity of central control, avoids manual misoperation of the central control, reduces the operation intensity of operators on operation posts, and achieves the stability of the system; the fine dust separation system has two sets, so that not only is the fine powder particles continuously returned to the bed and the working efficiency of the fine powder particles returned to the bed improved, but also the fine powder in the return pipe of the fluidized bed reactor can be secondarily separated, and the separation is more thorough.
Drawings
FIG. 1 is a schematic structural diagram of a fine powder automatic return bed device for organosilicon production.
Wherein, 1, a controller; 2. an air pressure compensating device; 201. an inflator pump; 3. a cyclone separator; 4. a hopper; 5. a weighing module; 6. a fine powder tank; 7. an air pressure sensor; 8. a disc valve; 9. an on-off valve; 10. a pressure balancing valve; 11. a pressure relief valve; 12. a recovery cyclone; 13. a fine powder recovery tank; 14. connecting a pipeline; 15. and (5) emptying the fine powder into a filter.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and various changes will be apparent to those skilled in the art as long as they are within the spirit and scope of the present invention as defined and defined by the appended claims, and all inventions contemplated by the present invention are protected.
As shown in fig. 1, the utility model provides an automatic bed device that returns of fine powder for organosilicon production, it includes controller 1 and fine dust separation system, and fine dust separation system includes atmospheric pressure compensation device 2 and cyclone 3, atmospheric pressure compensation device 2 and controller 1 electric connection; the feeding hole of the cyclone separator 3 is used for being connected with the discharging pipe of the fluidized bed reactor, and a connecting pipeline 14 in a shape like a Chinese character 'ji' is arranged between the feeding hole of the cyclone separator 3 and the discharging pipe of the fluidized bed reactor; the connecting pipeline 14 prolongs the distance between the feeding hole of the cyclone separator 3 and the discharging pipe of the fluidized bed reactor, and slows down the speed of the discharging pipe of the fluidized bed reactor entering the feeding hole of the cyclone separator 3, so that the separation effect of the cyclone separator 3 is better.
The top of the cyclone separator 3 is provided with an air outlet, and the bottom is provided with a discharge hole; the bottom of the cyclone separator 3 is provided with a hopper 4 communicated with the discharge port, a weighing module 5 electrically connected with the controller 1 is arranged in the hopper 4, the discharge port of the hopper 4 is connected with a fine powder tank 6, a switch valve 9 electrically connected with the controller 1 is arranged between the discharge port of the hopper 4 and the fine powder tank 6, and the hopper 4 is conveniently controlled to discharge materials into the fine powder tank 6.
The fine powder tank 6 is internally provided with an air pressure sensor 7 and a weighing module 5 which are electrically connected with the controller 1, the air pressure compensation device 2 is communicated with the fine powder tank 6 and used as a specific setting mode of the air pressure compensation device 2, the air pressure compensation device 2 is an inflator pump 201, and inflation gas is nitrogen.
A discharge hole at the bottom of the fine powder tank 6 is communicated with the fluidized bed reactor; the outlet of the hopper 4 and the outlet of the fine powder tank 6 are both provided with a disk valve 8 which is electrically connected with the controller 1.
The fine dust separation systems are two sets, and discharge holes at the bottoms of the fine powder tanks 6 in the two sets of fine dust separation systems are communicated with the fluidized bed reactor; the air outlet of the cyclone separator 3 of the first set of fine dust separation system is communicated with the feed inlet of the cyclone separator 3 of the second set of fine dust separation system. The arrangement of the two fine dust separation systems not only realizes the continuous return of fine powder particles to the bed and improves the working efficiency of the return of the fine powder particles to the bed, but also can perform secondary separation on fine powder in a return pipe of the fluidized bed reactor, so that the separation is more thorough.
An air pressure balance valve 10 is arranged between the two fine powder tanks 6, and the two fine powder tanks 6 are communicated through the air pressure balance valve 10. In the process of switching the two fine powder tanks 6, one fine powder tank 6 is required to be decompressed, the other fine powder tank 6 is required to be pressurized, the air pressure balance valve 10 can balance the air pressure in the two fine powder tanks 6, and the air consumption and the inflation time of the air pressure compensation device 2 are saved.
The fine powder automatic returning device also comprises a fine powder emptying filter 15, the tops of the two fine powder tanks 6 are respectively provided with a pressure release valve 11, and the pressure release valves 11 are communicated with the fine powder emptying filter 15 through pipelines. After the fine powder particles in the hopper 4 enter the two fine powder tanks 6, the air pressure in the two fine powder tanks 6 can be gradually increased, and the pressure release valve 11 can exhaust and release the air to the two fine powder tanks 6, so that the air pressure in the two fine powder tanks 6 is maintained in a safe value range, and the danger is avoided; the fine powder emptying filter 15 can filter the gas exhausted by the pressure relief valve 11, filter and collect fine powder particles in the gas, and avoid polluting the surrounding environment.
The fine powder automatic returning device further comprises a recovery system, the recovery device comprises a recovery cyclone separator 12, a feed inlet of the recovery cyclone separator 12 is connected with an air outlet of the second set of cyclone separator 3, a discharge outlet of the recovery cyclone separator 12 is connected with a fine powder recovery tank 13, and the fine powder recovery tank 13 is communicated with a fine powder tank 6 in the first set of fine dust separation system. The recovery system is used for recovering the fine dust separated by the fine dust separation system, so that the fine dust can be prevented from being discharged into the air to pollute the environment, the fine dust can be further recovered, and the production and manufacturing cost is saved.
In the process of producing the organic silicon, starting a fine dust separation system, connecting a discharge pipe of a fluidized bed reactor with a feed inlet of a cyclone separator 3, wherein the cyclone separator 3 is used for discharging fine powder particles in the discharge pipe of the fluidized bed reactor into a fine powder tank 6 at the bottom; when the weighing module 5 detects that the weight of the fine powder particles in the hopper 4 is greater than a preset value, the controller 1 opens a disk valve 8 positioned at the bottom of the hopper 4 to discharge the fine powder particles in the hopper 4 into a fine powder tank 6; when the fine powder tank 6 discharges materials, the controller 1 controls the switch valve 9 to be closed, the disk valve 8 at the discharge hole of the hopper 4 to be closed, and the hopper 4 does not discharge materials, so that wrong materials are prevented.
When the weighing module 5 and the air pressure sensor 7 monitor that the weight or the air pressure of the fine powder particles in the hopper 4 or the fine powder tank 6 reaches a preset value, the controller 1 opens the disk valve 8 positioned at the bottom of the fine powder tank 6, the fine powder particles in the fine powder tank 6 are discharged into the return pipe of the fluidized bed reactor, and the fine powder particles are automatically returned to the bed.
The controller 1, the air pressure sensor 7 and the weighing module 5 are arranged, so that the fine dust separation system automatically returns fine powder particles to the bed to work, the operation intensity of operators at operation posts is reduced, and the system stability is achieved; the air pressure compensation device 2 is used for providing air pressure for the fine powder tank 6, and the fine powder tank 6 is high in discharging speed, clean and thorough.
The numerical value of the weighing module 5 in the fine powder tank 6 is higher than the preset value, and the air pressure in the fine powder tank 6 is lower than the preset value, so that the discharging and bed returning effect of the fine powder tank 6 is poor, the air pressure compensation device 2 is required to be used for pressurizing the fine powder tank 6, and the automatic pressure compensation process of the air pressure compensation device 2 comprises the following steps: when a sensor in the fine powder tank 6 detects that the internal air pressure is higher than 0.6Mpa, the controller 1 opens the disk valve 8 at the bottom of the fine powder tank 6, and the fine powder tank 6 starts to automatically return to the bed for discharging; when the pressure in the fine powder tank 6 is lower than the preset lowest limit, the controller 1 controls the inflator 201 to charge nitrogen gas into the fine powder tank 6 for pressurization, and when the pressure in the fine powder tank 6 is higher than the upper limit of the pressure compensation, the inflator 201 stops working.
When the two fine dust separation systems work simultaneously, the controller 1 can automatically switch, and the specific switching process is as follows, the controller 1 can judge the weights of the two fine dust tanks 6 according to signals transmitted by the weighing modules 5 in the two fine dust separation systems, and optimally discharge the heavier fine dust tank 6 back to the bed.
Claims (8)
1. The fine powder automatic returning device for producing the organic silicon comprises a controller (1) and is characterized by comprising a fine powder separation system, wherein the fine powder separation system comprises an air pressure compensation device (2) and a cyclone separator (3), and the air pressure compensation device (2) is electrically connected with the controller (1);
the feeding hole of the cyclone separator (3) is used for being connected with the discharging pipe of the fluidized bed reactor, the top of the cyclone separator (3) is provided with an air outlet, and the bottom of the cyclone separator is provided with a discharging hole;
a hopper (4) communicated with the discharge port is arranged at the bottom of the cyclone separator (3), a weighing module (5) electrically connected with the controller (1) is arranged in the hopper (4), a fine powder tank (6) is connected at the discharge port of the hopper (4), an air pressure sensor (7) and the weighing module (5) electrically connected with the controller (1) are arranged in the fine powder tank (6), an air pressure compensation device (2) is communicated with the fine powder tank (6), and the discharge port at the bottom of the fine powder tank (6) is communicated with the fluidized bed reactor;
the outlets of the hopper (4) and the fine powder tank (6) are respectively provided with a disk valve (8) which is electrically connected with the controller (1).
2. The fine powder automatic returning device according to claim 1, characterized in that a switch valve (9) electrically connected with the controller (1) is arranged between the discharge port of the hopper (4) and the fine powder tank (6).
3. The automatic fine powder returning device as claimed in claim 2, wherein the number of the fine dust separating systems is two, and discharge ports at the bottoms of the fine powder tanks (6) in the two fine dust separating systems are communicated with the fluidized bed reactor; the air outlet of the cyclone separator (3) of the first set of fine dust separation system is communicated with the feed inlet of the cyclone separator (3) of the second set of fine dust separation system.
4. The automatic fine powder returning device as claimed in claim 3, wherein an air pressure balance valve (10) is arranged between the two fine powder tanks (6), and the two fine powder tanks (6) are communicated through the air pressure balance valve (10).
5. The fine powder automatic returning device according to claim 3, further comprising a fine powder emptying filter (15), wherein a pressure relief valve (11) is arranged at the top of each of the two fine powder tanks (6), and the pressure relief valves (11) are communicated with the fine powder emptying filter (15) through pipelines.
6. The automatic fine powder returning device according to claim 3, wherein the air pressure compensating device (2) is an air pump (201) connected with the two fine powder tanks (6).
7. The automatic fine powder returning device as claimed in claim 6, further comprising a recovery device, wherein the recovery device comprises a recovery cyclone separator (12), the feed inlet of the recovery cyclone separator (12) is connected with the air outlet of the second set of cyclone separator (3), the discharge outlet of the recovery cyclone separator (12) is connected with a fine powder recovery tank (13), the fine powder recovery tank (13) is communicated with the fine powder tank (6) in the first set of fine dust separation system, and the air outlet at the top of the fine powder recovery tank (13) is used for connecting with a liquid washing purification system.
8. The automatic fine powder returning device as claimed in any one of claims 1 to 7, wherein a connecting pipeline (14) in a shape like a Chinese character 'ji' is arranged between the feeding port of the cyclone separator (3) and the discharging pipe of the fluidized bed reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022763746.1U CN214390098U (en) | 2020-11-25 | 2020-11-25 | Automatic fine powder returning device for organic silicon production |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022763746.1U CN214390098U (en) | 2020-11-25 | 2020-11-25 | Automatic fine powder returning device for organic silicon production |
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| CN214390098U true CN214390098U (en) | 2021-10-15 |
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| CN202022763746.1U Active CN214390098U (en) | 2020-11-25 | 2020-11-25 | Automatic fine powder returning device for organic silicon production |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113845540A (en) * | 2021-11-01 | 2021-12-28 | 新疆晶硕新材料有限公司 | System and method for synthesizing organic silicon monomer |
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2020
- 2020-11-25 CN CN202022763746.1U patent/CN214390098U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113845540A (en) * | 2021-11-01 | 2021-12-28 | 新疆晶硕新材料有限公司 | System and method for synthesizing organic silicon monomer |
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