CN215388242U - Storage mechanism and dust removal device - Google Patents
Storage mechanism and dust removal device Download PDFInfo
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- CN215388242U CN215388242U CN202121869984.9U CN202121869984U CN215388242U CN 215388242 U CN215388242 U CN 215388242U CN 202121869984 U CN202121869984 U CN 202121869984U CN 215388242 U CN215388242 U CN 215388242U
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- pipe
- top cover
- dust removing
- tank body
- ash storage
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Abstract
The utility model discloses a storage mechanism and a dust removal device, relates to the technical field of polycrystalline silicon production, and mainly aims to avoid the potential safety hazard of flash explosion in dust removal equipment in the process of cleaning silicon powder on a chassis of a reduction furnace. The main technical scheme of the utility model is as follows: a storage mechanism, comprising: the device comprises a tank body, a top cover, a discharge pipe, an inert gas pipe and an exhaust pipe; an opening is formed in the upper end of the tank body; a filter component is attached to the lower surface of the top cover, and the edge of the top cover is detachably connected with the opening; the lower end of the discharge pipe penetrates through the top cover and the filtering component in sequence, the upper end of the discharge pipe is connected to the ash storage bin, and the discharge pipe is provided with a double-section discharge valve; the inert gas pipe sequentially penetrates through the top cover and the filtering component; the exhaust pipe is connected to the top cover.
Description
Technical Field
The utility model relates to the technical field of polycrystalline silicon production, in particular to a storage mechanism and a dust removal device.
Background
In the production of polycrystalline silicon, after the production of a furnace of silicon rods is finished each time, the amorphous silicon powder on the chassis of the reduction furnace needs to be cleaned before the furnace is reloaded and the production is started. Since the amorphous silicon powder is generated in the reduction furnace, trace chlorosilane is adsorbed in the amorphous silicon powder, so that the amorphous silicon powder has the characteristics of flammability and explosiveness. The existing dust removing equipment is used for collecting a large amount of silicon powder, due to the fact that the content of chlorosilane in the silicon powder in the dust removing equipment is high, the chlorosilane and air react to generate high temperature to cause combustion or flash explosion, and high-temperature silicon powder cannot be led out from the interior of the dust removing equipment after the high temperature occurs, and therefore potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a storage mechanism and a dust removal device, and mainly aims to avoid the potential safety hazard of flash explosion in dust removal equipment in the process of cleaning silicon powder on a chassis of a reduction furnace.
In order to achieve the purpose, the utility model mainly provides the following technical scheme:
in one aspect, the present invention provides a storage mechanism comprising: the device comprises a tank body, a top cover, a discharge pipe, an inert gas pipe and an exhaust pipe;
an opening is formed in the upper end of the tank body;
a filter component is attached to the lower surface of the top cover, and the edge of the top cover is detachably connected with the opening;
the lower end of the discharge pipe penetrates through the top cover and the filtering component in sequence, the upper end of the discharge pipe is connected to the ash storage bin, and the discharge pipe is provided with a double-section discharge valve;
the inert gas pipe sequentially penetrates through the top cover and the filtering component;
the exhaust pipe is connected to the top cover.
The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.
Optionally, the inert gas pipe is provided with a control valve.
On the other hand, the utility model also provides a dust removing device, which comprises: the dust removal device comprises a dust removal mechanism, a discharging pipe, an ash storage bin and the storage mechanism, wherein the upper end of the discharging pipe is connected to the dust removal mechanism, the lower end of the discharging pipe is connected to the upper end of the ash storage bin, the lower end of the ash storage bin is connected to the upper end of the discharging pipe, and the lower end of the discharging pipe extends into the tank body.
Optionally, the dust removing mechanism comprises a shell and a dust removing cloth bag arranged in the shell, and the lower end of the shell is connected to the upper end of the discharging pipe.
Optionally, the lower end of the exhaust pipe is connected to the top cover, and the upper end of the exhaust pipe is connected to the housing.
Optionally, the lower end side of the shell is connected to the air inlet pipe, the upper end side of the shell is connected to the air exhaust pipe, and the air inlet pipe is provided with a one-way valve for avoiding backflow of air in the shell along the air inlet pipe.
By the technical scheme, the utility model at least has the following advantages:
after silicon powder collected by the ash storage bin falls into the tank body through the discharge pipe, the double-section discharge valve is closed, in the process, inert gas (nitrogen) flows into the tank body along the inert gas pipe, air in the tank body is extruded, the air passes through the filtering holes of the filtering component and is discharged out of the tank body through the exhaust pipe of the top cover, the silicon powder is intercepted by the filtering component and stays in the tank body, the density of the air in the tank body is reduced, the probability of contact between a flammable component (chlorosilane) and the air is reduced, and the phenomenon that the chlorosilane and the air react to generate high temperature to cause combustion or flash explosion is avoided.
Drawings
Fig. 1 is a schematic structural diagram of a dust removing device according to an embodiment of the present invention.
Reference numerals in the drawings of the specification include: the device comprises a tank body 1, a top cover 2, a discharge pipe 3, an inert gas pipe 4, an exhaust pipe 5, a filter part 6, an ash storage bin 7, a double-section discharge valve 8, an exhaust pipe 9, a buckle 10, a first butterfly valve 801, a second butterfly valve 802, a control valve 11, a dust removal mechanism 12, a discharge pipe 13, a rotary discharge valve 14, a shell 121, a dust removal cloth bag 122, an air inlet pipe 15, an air suction pipe 16, a one-way valve 17, a dust collection head 18, a frame 19 and a mounting plate 20.
Detailed Description
To further explain the technical means and effects of the present invention for achieving the intended purpose of the utility model, the following detailed description of the embodiments, structures, features and effects according to the present application will be given with reference to the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
In one aspect, as shown in fig. 1, an embodiment of the present invention provides a storage mechanism, which includes: the device comprises a tank body 1, a top cover 2, a discharge pipe 3, an inert gas pipe 4 and an exhaust pipe 5;
an opening is formed in the upper end of the tank body 1;
a filter component 6 is attached to the lower surface of the top cover 2, and the edge of the top cover 2 is detachably connected with the opening;
the lower end of the discharge pipe 3 sequentially penetrates through the top cover 2 and the filtering part 6, the upper end of the discharge pipe 3 is connected to an ash storage bin 7, and the discharge pipe 3 is provided with a double-section discharge valve 8;
the inert gas pipe 4 penetrates through the top cover 2 and the filter part 6 in sequence;
the exhaust pipe 5 is connected to the top cover 2.
The working process of the storage mechanism is as follows:
after silicon powder collected by the ash storage bin 7 falls into the tank body 1 through the discharge pipe 3, the double-section discharge valve 8 is closed, in the process, inert gas (nitrogen) flows into the tank body 1 along the inert gas pipe 4, air in the tank body 1 is extruded, the air passes through the filtering holes of the filtering part 6 and is discharged out of the tank body 1 through the exhaust pipe 5 of the top cover 2, the silicon powder is intercepted by the filtering part 6 and is retained in the tank body 1, the air density in the tank body 1 is reduced, the probability of contact between a combustible component (chlorosilane) and air is reduced, and combustion or flash explosion caused by high temperature generated by reaction of the chlorosilane and the air is avoided.
In the technical scheme of the utility model, the silicon powder is led out of the ash storage bin 7 in time, and simultaneously, air in the tank body 1 is expelled as soon as possible, so that combustion or flash explosion of chlorosilane adhered to the silicon powder in the tank body 1 is avoided.
Specifically, the filter element 6 is made of filter cotton.
Specifically, buckle 10 (first buckle 10 fixed connection in the edge of top cap 2, second buckle 10 fixed connection in the outward flange of the 1 open-ended of jar body, the mutual lock of first buckle 10 and second buckle 10 to reach the mutual closed purpose of top cap 2 and jar body 1) is passed through at the edge of top cap 2 connect in the opening, the edge of top cap 2 is pasted and is had joint strip, avoids the in-process of equipment operation, and nitrogen gas flows through the gap between top cap 2 and the jar body 1. After the silicon powder led out of the ash storage bin 7 occupies most of the space of the pot body 1, the mutual buckling relation of the first buckle 10 and the second buckle 10 is released, and the opening of the pot body 1 is opened, so that the silicon powder in the pot body 1 can be poured out and processed.
Specifically, because the discharge pipe 3 is installed with the two-stage discharge valve 8, the two-stage discharge valve 8 includes first butterfly valve 801 and second butterfly valve 802, and first butterfly valve 801 and second butterfly valve 802 are installed in the discharge pipe 3 from top to bottom in proper order.
When the silicon powder in the ash storage bin 7 needs to be discharged, the following steps are taken:
(1) firstly, opening a first butterfly valve 801 and closing a second butterfly valve 802 to enable part of silicon powder in the ash storage bin 7 to fall to a space between the first butterfly valve 801 and the second butterfly valve 802;
(2) then, the first butterfly valve 801 is closed, a closed space is formed in the space between the first butterfly valve 801 and the second butterfly valve 802, then the second butterfly valve 802 is opened, and the silicon powder in the closed space falls into the tank body 1 along the discharge pipe 3;
(3) and (3) repeating the step (1) and the step (2), and gradually guiding the silicon powder in the ash storage bin 7 out of the tank body 1.
As shown in fig. 1, in the embodiment, the inert gas pipe 4 is provided with a control valve 11.
In the present embodiment, specifically, the flow rate of the inert gas is controlled by the control valve 11, so that the pressure of the inert gas in the tank 1 is controlled, and the rate at which the air in the tank 1 is discharged is controlled.
As shown in fig. 1, in another aspect, another embodiment of the present invention also provides a dust removing device, including: the dust removing device comprises a dust removing mechanism 12, a discharging pipe 13, an ash storage bin 7 and the storage mechanism, wherein the upper end of the discharging pipe 13 is connected to the dust removing mechanism 12, the lower end of the discharging pipe 13 is connected to the upper end of the ash storage bin 7, the lower end of the ash storage bin 7 is connected to the upper end of a discharging pipe 3, and the lower end of the discharging pipe 3 extends into the tank body 1.
In the present embodiment, specifically, the silicon powder collected by the dust removing mechanism 12 falls down along the discharge pipe 13 and is temporarily stored in the ash storage 7, and when there is a large amount of silicon powder in the ash storage 7, the first butterfly valve 801 and the second butterfly valve 802 are operated in sequence so that the silicon powder finally falls into the can body 1.
Specifically, the rotary discharge valve 14 is installed to the unloading pipe 13, and silica flour falls to the ash storage bin 7 after passing through the rotary discharge valve 14, so that the silica flour in the ash storage bin 7 is prevented from flowing back to the dust removal mechanism 12.
Specifically, the dust removing device further comprises a frame 19, wherein a shell of the dust removing mechanism 12 is fixedly arranged at the upper end of the frame 19, so that the discharging pipe 13, the ash storage bin 7, the discharging pipe 3 and the tank body 1 are sequentially arranged below the dust removing mechanism 12.
Specifically, temperature sensor is installed to ash storage bin 7, and the operating personnel of being convenient for in time perceives the temperature rising condition in ash storage bin 7 through the PLC controller display screen to in time operate two sections discharge valve 8, in time discharge the silica flour in ash storage bin 7 to jar body 1.
As shown in fig. 1, in the specific embodiment, the dust removing mechanism 12 includes a housing 121 and a dust removing cloth bag 122 installed in the housing 121, and a lower end of the housing 121 is connected to an upper end of the feeding pipe 13.
In the present embodiment, specifically, the dust collection bag 122 separates the silicon powder entering the casing 121 into the lower half space of the casing 121, so that the silicon powder collected in the casing 121 falls down along the blanking pipe 13.
As shown in fig. 1, in the embodiment, the lower end of the exhaust pipe 5 is connected to the top cover 2, and the upper end of the exhaust pipe 5 is connected to the housing 121.
In the present embodiment, specifically, the inert gas in the tank 1 flows into the casing 121 through the exhaust pipe 5 to reduce the density of the air in the casing 121, so as to avoid the combustion or flash explosion of the chlorosilane in the silicon powder in the casing 121.
As shown in fig. 1, in the specific embodiment, a lower end side of the housing 121 is connected to an air inlet pipe 15, an upper end side of the housing 121 is connected to an air exhaust pipe 16, and the air inlet pipe 15 is provided with a check valve 17 for preventing the air in the housing 121 from flowing backwards along the air inlet pipe 15.
In this embodiment, specifically, a plurality of cylindrical dust-removing cloth bags 122 are sequentially and horizontally arranged in the middle of the casing 121 through the mounting plate 20 to divide the casing 121 into an upper space and a lower space, one end of the air inlet pipe 15 is communicated with the lower space, and the other end is connected to the dust suction head 18, so that an operator can conveniently hold the dust suction head 18 to suck the amorphous silica powder on the chassis of the reduction furnace.
Meanwhile, the one-way valve 17 is installed in the air inlet pipe 15, so that inert gas in the shell 121 is prevented from entering the air inlet pipe 15, the inert gas is completely exhausted out of the shell 121 through the air exhaust pipe 16, a better inert gas atmosphere is kept in the shell 121, the concentration of combustion air in the shell 121 is reduced, chlorosilane flash explosion is avoided, meanwhile, the inert gas is exhausted through the air exhaust pipe 16, and the pressure of the shell 121 is also avoided.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (6)
1. A storage mechanism, comprising:
the upper end of the tank body is provided with an opening;
the lower surface of the top cover is attached with a filter component, and the edge of the top cover is detachably connected with the opening;
the lower end of the discharge pipe sequentially penetrates through the top cover and the filtering part, the upper end of the discharge pipe is connected to the ash storage bin, and the discharge pipe is provided with a double-section discharge valve;
the inert gas pipe sequentially penetrates through the top cover and the filtering component;
an exhaust pipe connected to the top cover.
2. The storage mechanism of claim 1,
the inert gas pipe is provided with a control valve.
3. A dust removing device characterized by comprising:
the ash storage device comprises a dust removing mechanism, a discharging pipe, an ash storage bin and the storage mechanism as claimed in claim 1 or 2, wherein the upper end of the discharging pipe is connected to the dust removing mechanism, the lower end of the discharging pipe is connected to the upper end of the ash storage bin, the lower end of the ash storage bin is connected to the upper end of a discharging pipe, and the lower end of the discharging pipe extends into the tank body.
4. A dust removing apparatus according to claim 3,
the dust removal mechanism comprises a shell and a dust removal cloth bag arranged in the shell, and the lower end of the shell is connected to the upper end of the blanking pipe.
5. The dust removing apparatus according to claim 4,
the lower end of the exhaust pipe is connected to the top cover, and the upper end of the exhaust pipe is connected to the shell.
6. The dust removing apparatus according to claim 5,
the lower extreme side of casing is connected in the intake pipe, the upper end side of casing is connected in the exhaust tube, the check valve is installed to the intake pipe, is used for avoiding gaseous edge in the casing the intake pipe refluence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121869984.9U CN215388242U (en) | 2021-08-11 | 2021-08-11 | Storage mechanism and dust removal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121869984.9U CN215388242U (en) | 2021-08-11 | 2021-08-11 | Storage mechanism and dust removal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215388242U true CN215388242U (en) | 2022-01-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121869984.9U Active CN215388242U (en) | 2021-08-11 | 2021-08-11 | Storage mechanism and dust removal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215388242U (en) |
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2021
- 2021-08-11 CN CN202121869984.9U patent/CN215388242U/en active Active
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