One-way flow guide high-purity quartz continuous melting furnace heating body limiting device

Abstract

The utility model discloses a one-way flow guide high-purity quartz continuous melting furnace heating body limiting device which comprises a quartz continuous melting furnace, a heat preservation layer assembly, a tungsten crucible, a heating body, a first limiting assembly and a second limiting assembly. First limiting assemblies are distributed at the two ends between the heat preservation layer assembly and the tungsten crucible, a second limiting assembly is arranged in the middle of the heat preservation layer assembly and the tungsten crucible, each first limiting assembly comprises a first limiting ring and a first clamping cover plate, the first limiting rings are arranged at the outer wall end of the tungsten crucible, first clamping grooves are evenly distributed in the outer walls of the first limiting rings in the circumferential direction, and the first clamping cover plates are located and installed outside the first limiting rings; the first support and the first clamping base are integrally formed, a groove-shaped structure is formed in the inner side of the first support to form the first clamping base, the first clamping base and the middle of the heating body are installed in a clamped mode, limiting installation of the middle of the heating body is achieved, limiting installation of the top end, the middle and the bottom end of the heating body is achieved, and the heating body is evenly arranged on the outer side of the tungsten crucible.

Description

TECHNICAL FIELD

[0001] The utility model relates to quartz continuous smelting furnace heating body limiting installation technical field, concretely relates to a one -way flow high -purity quartz continuous smelting furnace heating body limiting device. BACKGROUND

[0002] High -purity quartz because of its unique molecular chain structure, lattice shape and lattice change rule, make it have excellent chemical stability, very low body expansion coefficient, very high temperature resistance, high insulation withstand voltage capacity, low and stable ultrasonic delay performance, higher than ordinary glass mechanical properties, ultraviolet spectrum performance and visible light and near infrared spectrum performance, in the semiconductor, photovoltaic, optical fiber, electric light source and other fields occupy the pivotal position.

[0003] Publication (announcement) number: CN212532743U, disclose a quartz continuous smelting furnace core rod gas pressure stabilizing device, including furnace body, the furnace body inside fixed mounting has the crucible, the crucible inside is provided with the core rod, the crucible outside is equipped with main heating cover, the crucible outside bottom is equipped with auxiliary heating cover, the main heating cover and auxiliary heating cover outside are provided with the heat preservation layer, the heat preservation layer bottom is close to the side of blanking opening and is provided with the heat insulating layer, the furnace body outside one side is provided with first electric heater, the furnace body outside is close to the bottom one side of first electric heater and is provided with second electric heater, the top of furnace body is fixedly installed with furnace cover, the furnace cover top one side is provided with feed inlet, the furnace cover top is far from the side of feed inlet and is fixedly installed with air pump, and the air pump is connected with the core rod air inlet pipe through pipeline.

[0004] In prior art: there is not stable for heating body limiting fixed, in the assembly process, the spacing between heating body will change, cause local heat to be too high, cause the uneven heating of quartz continuous smelting furnace whole, and in long time smelting process, heating body will shift along with use, easily cause the uneven heating of smelting furnace local technical problem, cause smelting time to be long, smelting uneven problem.

[0005] Therefore need to provide a one -way flow high -purity quartz continuous smelting furnace heating body limiting device. UTILITY MODEL CONTENT

[0006] In view of the problems existing in the prior art, the utility model provides a one -way flow high -purity quartz continuous smelting furnace heating body limiting device, to realize the technical problem proposed above.

[0007] In order to achieve the above object, the utility model discloses a one-way flow guiding high-purity quartz continuous smelting furnace heating body limiting device, including quartz continuous smelting furnace, heat preservation layer subassembly, tung crucible, heating body, limiting component no.

[0008] Preferably, the clamping cover plate one includes an integrally formed horizontal annular plate and a vertical annular plate, the bottom outer edge of the horizontal annular plate is provided with the vertical annular plate, and the inner side of the vertical annular plate is uniformly provided with the clamping groove two.

[0009] Preferably, the bottom of the horizontal annular plate is uniformly provided with a positioning column, the surface of the limiting ring one at the bottom of the positioning column is provided with a limiting groove two, and the positioning column is inserted and installed in the interior of the limiting groove two.

[0010] Preferably, the heating body is a tungsten heating rod, the entire heating structure is a split structure, the tungsten heating rod used is a non-uniform heating component, the heating rod is thick at the top and thin at the bottom, and the size is gradiently distributed.

[0011] Preferably, the inner diameter size of the slot formed by the clamping groove one and the clamping groove two at the upper part of the tungsten crucible is smaller than the inner diameter size of the slot formed by the clamping groove one and the clamping groove two at the lower part of the tungsten crucible.

[0012] In summary, this utility model provides a unidirectional flow high-purity quartz continuous melting furnace heating element limiting device. The beneficial effects achieved by this utility model patent are as follows: the heating element is installed by the end of the mounting plate being surrounded and limited by the first and second slots, and the position of the limiting component one is limited and fixed by the insulation layer component on the outside of the tungsten crucible, thereby achieving clamping and limiting installation of each heating element; during installation, the end of the heating element with the smaller outer diameter is inserted from top to bottom, passing through the upper limiting component one, the limiting component two, and the lower limiting component one in sequence; the middle part of the heating element is limited and installed by the limiting component two, specifically: the bracket one and the snap-fit ​​base one are integrally formed, the inner side of the bracket one has a groove structure for the snap-fit ​​base one, the two ends of the bracket one extend towards the tungsten crucible and are fixedly installed with the tungsten crucible, and the snap-fit ​​base one is snap-fitted and installed with the middle part of the heating element, thereby achieving limiting installation of the middle part of the heating element, so as to achieve limiting installation of the top, middle and bottom ends of the heating element, and realize the uniform arrangement of the heating element on the outside of the tungsten crucible. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the unidirectional flow high-purity quartz continuous melting furnace structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the tungsten crucible and heating element structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the limiting component of this utility model;

[0016] Figure 4 This is a schematic diagram of the second limiting component of this utility model;

[0017] Figure 5 This is a schematic diagram of the snap-fit ​​cover plate of this utility model;

[0018] In the diagram: 1. Quartz continuous melting furnace; 2. Insulation layer assembly; 3. Tungsten crucible; 4. Heating element; 5. Limiting assembly one; 6. Limiting assembly two; 7. Limiting ring one; 11. Snap-fit ​​cover plate one; 12. Snap-fit ​​groove one; 13. Snap-fit ​​base one; 14. Bracket one; 15. Horizontal annular plate; 16. Vertical annular plate; 17. Positioning post 21; Limiting groove two 22. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] like Figures 1 to 5 As shown:

[0021] This utility model relates to a unidirectional flow-directing high-purity quartz continuous melting furnace heating element limiting device, comprising a quartz continuous melting furnace 1, a heat insulation layer assembly 2, a tungsten crucible 3, a heating element 4, a limiting component one 5, and a limiting component two 6. The interior of the quartz continuous melting furnace 1 is sequentially configured with the heat insulation layer assembly 2 and the tungsten crucible 3. Limiting components one 5 are distributed at both ends between the heat insulation layer assembly 2 and the tungsten crucible 3, and limiting component two 6 is located in the middle. Limiting component one 5 includes a limiting ring one 7 and a snap-fit ​​cover plate one 11. The limiting ring one 7 is located at the outer wall end of the tungsten crucible 3, and the outer wall of the limiting ring one 7 has evenly distributed slots one 12. A snap-fit ​​cover plate 11 is installed in the part. The lower inner part of the snap-fit ​​cover plate 11 is set as a snap-fit ​​groove 13. The snap-fit ​​groove 12 and the snap-fit ​​groove 13 surround and limit the two ends of the heating body 4. Several limiting components 2 6 are evenly distributed in the circumference of the middle part of the tungsten crucible 3. The limiting components 2 6 include a snap-fit ​​base 14 and a bracket 15. The bracket 15 and the snap-fit ​​base 14 are integrally formed. The inner side of the bracket 15 has a groove structure to snap-fit ​​the base 14. The two ends of the bracket 15 extend towards the tungsten crucible 3 and are fixedly installed with the tungsten crucible 3. The snap-fit ​​base 14 is snap-fitted to the middle part of the heating body 4.

[0022] To address the technical problem of uneven heating of the tungsten crucible 3 due to uneven distribution of heating elements 4 in existing technologies, this utility model patent adopts the following technical structure: A plurality of heating elements 4 are axially and evenly arranged on the outer wall of the tungsten crucible 3. The heating elements 4 are tungsten heating rods, and the specific number of heating elements 4 is determined by the actual melting capacity. Limiting rings 7 are provided at both the top and bottom of the tungsten crucible 3. The outer wall of the limiting rings 7 has evenly distributed slots 12. A snap-fit ​​cover plate 11 covers one side of the limiting rings 7, and the lower inner part of the snap-fit ​​cover plate 11 is provided with a second slot 13. The end of the heating element 4 is limited and fixed by the combination of the first slot 12 and the second slot 13, and the position of the limiting component 5 is limited and fixed by the insulation layer component 2 on the outside of the tungsten crucible 3. This method achieves clamping and limiting installation of each heating element 4. During installation, the end with the smaller outer diameter of the heating element 4 is inserted from top to bottom, passing sequentially through the upper limiting component 1 5, the limiting component 2 6, and the lower limiting component 1 5. The middle part of the heating element 4 is limited and installed by the limiting component 2 6. Specifically, the bracket 1 15 and the snap-fit ​​base 1 14 are integrally formed. The inner side of the bracket 1 15 has a groove structure for snap-fit ​​base 1 14. Both ends of the bracket 1 15 extend towards the tungsten crucible 3 and are fixedly installed with the tungsten crucible 3. The snap-fit ​​base 1 14 is snap-fitted and installed with the middle part of the heating element 4, thereby limiting the installation of the middle part of the heating element 4. This achieves limiting installation of the top, middle, and bottom ends of the heating element 4, and ensures that the heating elements 4 are evenly arranged on the outside of the tungsten crucible 3.

[0023] In at least one embodiment, in order to achieve the cooperation between the limiting ring 7 and the snap-fit ​​cover 11 to limit the installation of the heating element 4, the snap-fit ​​cover 11 includes an integrally formed transverse annular plate 16 and a longitudinal annular plate 17. The bottom outer edge of the transverse annular plate 16 is set as the longitudinal annular plate 17, and the inner side of the longitudinal annular plate 17 is uniformly set as a second slot 13, so that the first slot 12 and the second slot 13 surround and limit the installation of the heating element 4.

[0024] In at least one embodiment, in order to achieve the positioning and installation of the limiting ring 7 and the snap-fit ​​cover 11, positioning posts 21 are evenly arranged at the bottom of the transverse annular plate 16. The surface of the limiting ring 7 at the bottom of the positioning post 21 is opened into the limiting groove 22. The positioning post 21 is inserted into the inside of the limiting groove 22, so that the snap-fit ​​cover 11 is positioned and installed on the limiting ring 7, thereby achieving the clamping and installation of the heating element 4.

[0025] In at least one embodiment, the heating element 4 is a tungsten heating rod, and the entire heating structure is a split structure. The tungsten heating rod used is a non-uniform heating component, with the heating rod being thicker at the top and thinner at the bottom, and the size is distributed in a gradient. This achieves a unidirectional flow heating structure, which gives the thermal field a temperature gradient, allowing the deposited material to better complete the melting process and reducing heat loss.

[0026] In at least one embodiment, in order to adapt to the installation of the heating element 4 and to realize the unidirectional flow heating structure, the inner diameter of the groove formed by the combination of the first groove 12 and the second groove 13 at the upper part of the tungsten crucible 3 is smaller than the inner diameter of the groove formed by the combination of the first groove 12 and the second groove 13 at the lower part of the tungsten crucible 3, so as to adapt to the heating element 4 for limiting installation.

[0027] The embodiments described in this utility model are for illustrative purposes only and do not constitute a limitation on the scope of the claims. Other substantially equivalent substitutions that can be conceived by those skilled in the art are all within the protection scope of this utility model.

Claims

1. A unidirectional flow-directing high-purity quartz continuous melting furnace heating element limiting device, characterized in that, The system includes a quartz continuous melting furnace (1), an insulation layer assembly (2), a tungsten crucible (3), a heating element (4), a limiting assembly one (5), and a limiting assembly two (6). The interior of the quartz continuous melting furnace (1) is arranged with the insulation layer assembly (2) and the tungsten crucible (3) in sequence. The two ends between the insulation layer assembly (2) and the tungsten crucible (3) are provided with the limiting assembly one (5), and the middle part is provided with the limiting assembly two (6). The limiting assembly one (5) includes a limiting ring one (7) and a snap-fit ​​cover plate one (11). The limiting ring one (7) is located at the outer wall end of the tungsten crucible (3). The outer wall of the limiting ring one (7) is evenly distributed with a snap-fit ​​groove one (12). The snap-fit ​​cover plate one (11) is installed on the outside of the limiting ring one (7). 11) The lower inner side of the snap-fit ​​cover plate (11) is set as the snap-fit ​​groove (13). The snap-fit ​​groove (12) and the snap-fit ​​groove (13) surround and limit the two ends of the heating body (4). The middle part of the tungsten crucible (3) is evenly distributed with several limiting components (6). The limiting components (6) include the snap-fit ​​base (14) and the bracket (15). The bracket (15) and the snap-fit ​​base (14) are integrally formed. The inner side of the bracket (15) has a groove structure to snap-fit ​​base (14). The two ends of the bracket (15) extend towards the tungsten crucible (3) and are fixedly installed with the tungsten crucible (3). The snap-fit ​​base (14) is snap-fitted to the middle of the heating body (4).

2. The unidirectional flow-directing high-purity quartz continuous melting furnace heating element limiting device according to claim 1, characterized in that, The snap-fit ​​cover plate (11) includes an integrally formed transverse annular plate (16) and a longitudinal annular plate (17). The bottom outer edge of the transverse annular plate (16) is set as the longitudinal annular plate (17), and the inner side of the longitudinal annular plate (17) is uniformly set as the snap-fit ​​groove (13).

3. The unidirectional flow-directing high-purity quartz continuous melting furnace heating element limiting device according to claim 1, characterized in that, The bottom of the transverse annular plate (16) is uniformly provided with positioning posts (21). The surface of the limiting ring one (7) at the bottom of the positioning post (21) is opened as a limiting groove two (22). The positioning post (21) is inserted into the inside of the limiting groove two (22).

4. The unidirectional flow-directing high-purity quartz continuous melting furnace heating element limiting device according to claim 1, characterized in that, The heating element (4) is set as a tungsten heating rod. The entire heating structure is a split structure. The tungsten heating rod used is a non-uniform heating component. The heating rod is thicker at the top and thinner at the bottom, and its size is distributed in a gradient.

5. A unidirectional flow-directing high-purity quartz continuous melting furnace heating element limiting device according to claim 4, characterized in that, The inner diameter of the groove formed by the first slot (12) and the second slot (13) at the top of the tungsten crucible (3) is smaller than the inner diameter of the groove formed by the first slot (12) and the second slot (13) at the bottom of the tungsten crucible (3).

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