CN214516635U - Gas sealing structure for lifting rod of reduction furnace bell jar cleaning equipment - Google Patents
Gas sealing structure for lifting rod of reduction furnace bell jar cleaning equipment Download PDFInfo
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- CN214516635U CN214516635U CN202120375080.4U CN202120375080U CN214516635U CN 214516635 U CN214516635 U CN 214516635U CN 202120375080 U CN202120375080 U CN 202120375080U CN 214516635 U CN214516635 U CN 214516635U
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- lifting rod
- water removal
- bell jar
- guide sleeve
- reduction furnace
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Abstract
The utility model discloses a gas seal structure for reducing furnace bell jar cleaning equipment lifter relates to polycrystalline silicon production technical field, and the main objective is to improve the sealed effect to spraying moisture. The utility model discloses a main technical scheme does: a gas seal structure for a lifting rod of a reduction furnace bell jar cleaning device, the structure comprising: the device comprises a platform, a guide sleeve, a lifting rod and a dewatering groove; the platform is provided with a central hole; the guide sleeve is fixedly arranged in the central hole; one end of the lifting rod is connected to the driving mechanism, the other end of the lifting rod penetrates through the guide sleeve, and the other end of the lifting rod is connected with the nozzle mechanism; the water removal groove is spirally arranged on the inner surface of the guide sleeve, the notch of the water removal groove is attached to the axial side wall of the lifting rod and used for forming a water removal channel, the inlet end of the water removal channel is connected to an air source, and the outlet end of the water removal channel is connected to a water drain pipe.
Description
Technical Field
The utility model relates to a polycrystalline silicon production technical field especially relates to a gas seal structure for reducing furnace bell jar cleaning equipment lifter.
Background
In the production of polycrystalline silicon, after the production of a furnace of silicon rods is finished each time, the bell jar of the reduction furnace needs to be cleaned before the furnace is reloaded and the production is started, so the bell jar cleaning device is an essential device in the production of polycrystalline silicon. The latest cleaning device at present adopts a mechanical arm structure for achieving better cleaning quality, and different execution actions can be adopted for different parts of different structures of the inner wall of the bell jar to clean pertinently. In the cleaning process, the lifting mechanism is required to drive the high-pressure nozzle mechanism to clean the inner wall of the bell jar up and down back and forth in the bell jar. The acidic or alkaline waste water generated in the cleaning process falls to the bottom of the platform of the cleaning device and is discharged through a water outlet. The power part of the lifting mechanism is arranged at the lower part of the cleaning platform, the nozzle is arranged at the upper part of the cleaning platform, the power part of the lifting mechanism is connected with the nozzle mechanism through a lifting rod with the length of 3.5M, and a support rod in the structure needs to vertically penetrate through the center of the platform and then drives the nozzle mechanism to complete the cleaning of the bell jar. Therefore, a gap exists between the lifting rod and the platform, so that water is easy to leak to the lower part of the platform, and the mechanical structure and the electrical components on the lower part of the platform are damaged. The original treatment method is to install a lip-shaped sealing ring at the gap to prevent leakage, the loss of the sealing ring is fast due to the high temperature of strong acid, strong alkali and the high temperature of the cleaning environment and the up-down friction of the lifting rod, the average service life of the sealing ring is only 15 days, the sealing effect is poor, the equipment failure rate is high, the overhaul cost is high, and the production is influenced.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a gas seal structure for reducing furnace bell jar cleaning equipment lifter, the main objective is to improve the sealed effect to spraying moisture.
In order to achieve the above object, the utility model mainly provides the following technical scheme:
the utility model provides a gas seal structure for reducing furnace bell jar cleaning equipment lifter, this structure includes: the device comprises a platform, a guide sleeve, a lifting rod and a dewatering groove;
the platform is provided with a central hole;
the guide sleeve is fixedly arranged in the central hole;
one end of the lifting rod is connected to the driving mechanism, the other end of the lifting rod penetrates through the guide sleeve, and the other end of the lifting rod is connected with the nozzle mechanism;
the water removal groove is spirally arranged on the inner surface of the guide sleeve, the notch of the water removal groove is attached to the axial side wall of the lifting rod and used for forming a water removal channel, the inlet end of the water removal channel is connected to an air source, and the outlet end of the water removal channel is connected to a water drain pipe.
The purpose of the utility model and the technical problem thereof can be further realized by adopting the following technical measures.
Optionally, the outlet end of the water removal channel and the inlet end of the water removal channel are arranged in an up-down manner.
Optionally, the gas source provides a mechanism for nitrogen gas.
Optionally, the number of turns of the spiral line formed by the water removal grooves is three.
Optionally, the width of the water removal groove is 10mm, and the depth of the water removal groove is 5 mm.
Borrow by above-mentioned technical scheme, the utility model discloses at least, have following advantage:
the platform is fixed in the process of cleaning the bell jar by the cleaning equipment, and the lifting rod rotates and moves under the driving action of the driving mechanism, so that the nozzle mechanism is driven to rotate and move. In the process, the lifting rod abrades the sealing ring, the gap between the lifting rod and the sealing ring is enlarged, and the water sprayed out of the nozzle mechanism flows downwards to the gap along the axial side wall of the lifting rod. However, the gas generated by the gas source enters the spiral water removal channel from the inlet end and flows out of the water removal channel from the outlet end, so that the water flowing downwards is driven to flow out to the drain pipe along the water removal channel, the water flowing downwards is prevented from reaching the mechanical structure and the electrical equipment of the driving mechanism, the mechanical structure and the electrical equipment are prevented from being corroded, and the failure rate of the equipment is reduced.
Drawings
Fig. 1 is an isometric view of a bell jar cleaning device according to an embodiment of the present invention;
fig. 2 is a sectional side view of a gas sealing structure for a lifting rod of a bell jar cleaning device of a reduction furnace provided by an embodiment of the present invention.
Reference numerals in the drawings of the specification include: the device comprises a platform 1, a guide sleeve 2, a lifting rod 3, a dewatering groove 4, a driving mechanism 5, a nozzle mechanism 6, a drainage tube 7, a sealing ring 8, an inlet end 9, an outlet end 10 and a base frame 11.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the present invention, the following detailed description is given with reference to the accompanying drawings and preferred embodiments, in order to explain the detailed embodiments, structures, features and effects of the present invention. 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.
As shown in fig. 1 and fig. 2, an embodiment of the present invention provides a gas sealing structure for a lifting rod of a bell jar cleaning device of a reduction furnace, which includes: the device comprises a platform 1, a guide sleeve 2, a lifting rod 3 and a dewatering groove 4;
the platform 1 is provided with a central hole;
the guide sleeve 2 is fixedly arranged in the central hole;
one end of the lifting rod 3 is connected with the driving mechanism 5, the other end of the lifting rod penetrates through the guide sleeve 2, and the other end of the lifting rod 3 is connected with the nozzle mechanism 6;
the water removal grooves 4 are spirally arranged on the inner surface of the guide sleeve 2, the notches of the water removal grooves 4 are attached to the axial side wall of the lifting rod 3 and used for forming water removal channels, the inlet ends 9 of the water removal channels are connected to an air source, and the outlet ends 10 of the water removal channels are connected to a water discharge pipe.
The working process of the gas sealing structure for the lifting rod of the reduction furnace bell jar cleaning equipment is as follows:
in the process of cleaning the bell jar, the platform 1 is fixed, and the lifting rod 3 rotates and moves up and down under the driving action of the driving mechanism 5, so that the nozzle mechanism 6 is driven to rotate and move up and down. In this process, the lift lever 3 wears the seal ring 8, the gap between the lift lever 3 and the seal ring 8 becomes large, and the water part ejected from the nozzle mechanism 6 flows down to the gap along the axial side wall of the lift lever 3. However, since the gas generated by the gas source enters the spiral water removal channel from the inlet end 9 and flows out of the water removal channel through the outlet end 10, the water flowing downwards is driven to flow out to the drain pipe along the water removal channel, so that the water flowing downwards is prevented from reaching the mechanical structure and the electrical equipment of the driving mechanism 5, the mechanical structure and the electrical equipment are prevented from being corroded, and the failure rate of the equipment is reduced.
The technical scheme of the utility model among, through making gaseous 3 axial lateral walls spiral flows along the lifter, avoid moisture to follow the vertical downward flow of lifter 3 to improve the sealed effect to moisture on platform 1, avoid the actuating mechanism 5 of moisture corrosion platform 1 below.
As shown in fig. 2, specifically, the lifting rod 3 is a hollow structure, and a drainage tube 7 is embedded inside the lifting rod 3 for guiding the water for cleaning the bell jar to the nozzle mechanism 6.
Specifically, the uide bushing 2 adopts the nylon material, and the upper end and the lower extreme of centre bore are fixed respectively and are provided with sealing washer 8, and uide bushing 2 is located between two sealing washers 8.
As shown in fig. 1, in particular, the lower surface of the platform 1 is fixedly connected to a base frame 11, and the driving mechanism 5 is installed on the base frame 11.
In the embodiment shown in fig. 2, the outlet end 10 of the water scavenging channel and the inlet end 9 of the water scavenging channel are arranged one above the other.
In this embodiment, the outlet end 10 and the inlet end 9 are arranged up and down, and the air generated by the air source flows spirally from bottom to top, so as to play a role of retarding and decelerating the water flowing downwards and simultaneously drive the water reaching the water removal channel to flow together. Compared with the mode that the gas flows spirally from top to bottom, the embodiment does not assist the water to flow vertically downwards, and further avoids the water from contacting with the mechanical structure and the electrical equipment of the driving mechanism 5.
In a specific embodiment, the gas source is a nitrogen gas supply mechanism.
In the present embodiment, nitrogen is an inert gas, and is a process purge gas that is conventional in the industry, and the nitrogen is chemically stable with respect to multi-component air and does not corrode the water removal grooves 4 in the guide sleeve 2.
In the embodiment, as shown in fig. 2, the number of turns of the spiral line formed by the water removing grooves 4 is three.
In this embodiment, concrete, consider the actual size of centre bore and uide bushing 2, set up the helix number of turns of dewatering slot 4 into three circles, comparatively abundant processing the internal surface of uide bushing 2, avoid the helix pitch too short simultaneously, guaranteed the structural strength of dewatering slot 4 helix passageway.
In a specific embodiment, the width of the water removal groove 4 is 10mm, and the depth of the water removal groove 4 is 5 mm.
In the present embodiment, specifically, the width of the water removal groove 4 is 10mm, and the depth of the water removal groove 4 is 5 mm. Through setting up above-mentioned size, on the limited area of guide sleeve 2 internal surfaces, guaranteed the thickness of the nylon materials of helix pitch department, at the in-process that uses guide sleeve 2, the helical structure of dewatering slot 4 is difficult for taking place to damage because of the friction that receives lifter 3.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. A gas sealing structure for a lifting rod of a reduction furnace bell jar cleaning device is characterized by comprising:
a platform having a central aperture;
the guide sleeve is fixedly arranged in the central hole;
one end of the lifting rod is connected to the driving mechanism, the other end of the lifting rod penetrates through the guide sleeve, and the other end of the lifting rod is connected with the nozzle mechanism;
the water removal groove is spirally arranged on the inner surface of the guide sleeve, the notch of the water removal groove is attached to the axial side wall of the lifting rod and used for forming a water removal channel, the inlet end of the water removal channel is connected to an air source, and the outlet end of the water removal channel is connected to a drain pipe.
2. The gas sealing structure for the lifter of reduction furnace bell jar cleaning apparatus according to claim 1,
the outlet end of the water removing channel and the inlet end of the water removing channel are arranged up and down.
3. The gas sealing structure for the lifter of reduction furnace bell jar cleaning apparatus according to claim 1,
the gas source provides a mechanism for nitrogen.
4. The gas sealing structure for the lifter of reduction furnace bell jar cleaning apparatus according to claim 1,
the number of turns of the spiral line formed by the water removal grooves is three.
5. The gas sealing structure for the lifter of reduction furnace bell jar cleaning apparatus according to claim 4,
the width of dewatering groove is 10mm, the degree of depth of dewatering groove is 5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120375080.4U CN214516635U (en) | 2021-02-18 | 2021-02-18 | Gas sealing structure for lifting rod of reduction furnace bell jar cleaning equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120375080.4U CN214516635U (en) | 2021-02-18 | 2021-02-18 | Gas sealing structure for lifting rod of reduction furnace bell jar cleaning equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214516635U true CN214516635U (en) | 2021-10-29 |
Family
ID=78235384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120375080.4U Active CN214516635U (en) | 2021-02-18 | 2021-02-18 | Gas sealing structure for lifting rod of reduction furnace bell jar cleaning equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214516635U (en) |
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2021
- 2021-02-18 CN CN202120375080.4U patent/CN214516635U/en active Active
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