Quartz crucible melting heat shield heat retaining device

Abstract

The utility model discloses quartz crucible melts heat -proof plate heat preservation device, it includes water passing board, heat -proof plate, the bottom end face of water passing board is connected with the heat -proof plate of vertical setting respectively near four around edges, four heat -proof plates and water passing board form heat -proof area, and the top end of mould is placed in heat -proof area, the outer wall of heat -proof plate away from water passing board one side and the lateral wall of water passing board are connected through hinged member between, and the outer wall of remaining heat -proof plate and the lateral wall of water passing board are connected through adjusting member between, the inside of heat -proof plate is equipped with hollow chamber, and the hollow chamber is filled with circulating cooling water, and the outer wall of heat -proof plate is fixed with water inlet joint and water outlet joint respectively. Advantage: through water passing board increases heat -proof plate, can promote electric energy utilization rate, makes energy concentration between heat -proof plate and mould, through the path of blocking heat radiation and convection heat dissipation, energy loss is reduced significantly.

Description

Technical Field

[0001] This utility model relates to the field of quartz crucible production technology, specifically to a heat insulation device for melting quartz crucibles with heat insulation plates. Background Technology

[0002] The manufacturing process of quartz crucibles involves placing high-purity quartz sand into a rotary molding die, and then using an electrode lifting device to move the electrodes downward along the electrode lifting support within the rotary molding die. Under the action of the electrodes, the quartz crucibles are melted at high temperatures. Due to their high temperature resistance, good chemical stability, and high purity, they are widely used in high-end fields such as photovoltaics, semiconductors, and optics. The melting technology directly determines the purity, density, dimensional accuracy, and service life of the product, making it one of the core technologies in the industry.

[0003] Currently, a water-absorbing plate is installed above the rotary forming mold. A through-hole for electrode penetration is located in the center of the water-absorbing plate, which is mounted on the electrode lifting bracket. The water-absorbing plate's function is to prevent heat loss from the quartz crucible mold during melting, protect the components above the rotary forming mold, reduce the surrounding operating temperature, and provide a reference for electrode position. To ensure the rotation of the rotary forming mold, a certain gap is maintained between the mold and the water-absorbing plate. This gap causes heat to diffuse to the surroundings, raising the ambient temperature. This not only reduces the durability of components during operation but also significantly increases the safety risk due to the combined effect of component friction heating and the high external temperature. When the equipment is in this state for a long time, it can lead to reduced operating efficiency and soaring maintenance costs, or even more serious safety hazards such as circuit failure and mechanical malfunction due to localized overheating, posing a dual threat to the equipment's lifespan and the safety of personnel in the operating environment. Utility Model Content

[0004] The purpose of this utility model is to provide a heat insulation device for melting quartz crucibles and heat insulation plates.

[0005] This utility model is implemented by the following technical solution: a heat insulation device for melting quartz crucibles with heat insulation plates, which includes a water-passing plate and a heat insulation plate;

[0006] The bottom end face of the water-passing plate is connected to the vertically arranged heat insulation plate near the four edges. The four heat insulation plates and the water-passing plate form a heat insulation zone, and the top of the mold is placed in the heat insulation zone.

[0007] The outer wall of the heat insulation plate on the side away from the water-passing plate is connected to the side wall of the water-passing plate by a hinge, and the outer walls of the remaining heat insulation plates are connected to the side walls of the water-passing plate by an adjusting member.

[0008] The heat insulation board has a hollow cavity inside, which is filled with circulating cooling water. The outer wall of the heat insulation board is fixed with a water inlet connector and a water outlet connector.

[0009] Furthermore, the hinge is a hinge.

[0010] Furthermore, the adjusting component includes a connecting plate, fastening bolts, a first bolt group, and a second bolt group;

[0011] The connecting plate is vertically disposed between the outer wall of the heat insulation plate and the side plate of the water passage plate. The top of the connecting plate is provided with two bolt holes, and the fastening bolts are inserted into the bolt holes. The connecting plate is fixedly connected to the side wall of the water passage plate by the fastening bolts.

[0012] The connecting plate has a first elongated hole in the middle, and a first bolt group passes through the first elongated hole. The connecting plate is fixedly connected to the outer wall of the heat insulation plate through the first bolt group.

[0013] The bottom of the connecting plate is provided with a second elongated hole, and a second bolt group is inserted into the second elongated hole. The connecting plate is fixedly connected to the outer wall of the heat insulation plate by the second bolt group.

[0014] Furthermore, an observation port is provided on the surface of the heat insulation plate on the side away from the water-passing plate.

[0015] The advantages of this invention are as follows: By adding a heat insulation plate to the water-passing plate, the energy utilization rate can be improved, and the energy is concentrated between the heat insulation plate and the mold. By blocking the heat radiation and convection heat dissipation paths, energy loss is significantly reduced. The device is made of 304 stainless steel and has internal cooling circulating water, which forms a barrier around the electrode heat source, reducing heat diffusion to the environment and maintaining a stable internal thermal field. This not only reduces energy loss but also prevents components from prolonged high temperatures, extending their service life. Furthermore, the concentrated thermal field effect accelerates the process, shortens heating or reaction time, and effectively saves time costs. This device also reduces air convection, significantly reducing the risk of impurity introduction and improving product quality. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the utility model in use;

[0018] Figure 2 This is a schematic diagram of the combination of the water-passing plate and the heat insulation plate of this utility model;

[0019] Figure 3 for Figure 1 A magnified view of part A in the diagram;

[0020] In the picture:

[0021] Electrode lifting bracket 1, water-passing plate 2, heat insulation plate 3, heat insulation zone 4, hinge 5, hinge 5.1, rotary forming mold 6, moving trolley 7, adjusting component 8, connecting plate 8.1, fastening bolt 8.2, first bolt group 8.3, second bolt group 8.4, hollow cavity 9, water inlet connector 10, water outlet connector 11, bolt hole 12, first elongated hole 13, second elongated hole 14, observation port 15, drive mechanism 16, electrode 17. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1-3 As shown, the quartz crucible melting and insulation device includes a water-passing plate 2 and an insulation plate 3.

[0024] The bottom end face of the water-passing plate 2 is connected to vertically arranged heat insulation plates 3 near the four edges. The four heat insulation plates 3 and the water-passing plate 2 form a heat insulation zone 4, and the top of the mold is placed in the heat insulation zone 4.

[0025] The outer wall of the heat insulation plate 3 on the side away from the water-passing plate 2 is connected to the side wall of the water-passing plate 2 by a hinge 5. The hinge 5 is a hinge 5.1. The bottom end of the rotary forming mold 6 is provided with a drive mechanism 16. The bottom end of the drive mechanism 16 is fixed with a moving trolley 7. When the electrode 17 fails, the rotary forming mold 6 is promptly withdrawn to the melting zone by the moving trolley 7. The heat insulation plate 3 connected by the hinge 5.1 is set in the moving direction of the moving trolley 7. The heat insulation plate 3 is in a movable state and can rotate outward to ensure that the rotary forming mold 6 can be smoothly withdrawn from the melting zone.

[0026] The outer wall of the remaining heat insulation board 3 is connected to the side wall of the water passage board 2 by an adjusting member 8. The purpose of the adjustable connection is to facilitate the replacement of the heat insulation board 3, and also to adjust the position between the heat insulation board 3 and the water passage board 2 according to thermal expansion and contraction.

[0027] The heat insulation board 3 has a hollow cavity 9 inside, which is filled with circulating cooling water. The outer wall of the heat insulation board 3 is fixed with a water inlet connector 10 and a water outlet connector 11. The circulating cooling water uses industrial water or tap water that has been treated in the plant area. The water after heat exchange is sent to the cooling tower.

[0028] By adding a heat insulation plate 3 to the water-passing plate 2, the energy utilization rate can be improved, concentrating energy between the heat insulation plate 3 and the rotary forming mold 6. This significantly reduces energy loss by blocking heat radiation and convection heat dissipation paths. The device is made of 304 stainless steel and has internal cooling circulating water, forming a barrier around the heat source of electrode 17, reducing heat diffusion to the environment and maintaining a stable internal thermal field. This not only reduces energy loss but also prevents components from prolonged high temperatures, extending their service life. Furthermore, the concentrated thermal field effect accelerates the process, shortens heating or reaction time, and effectively saves time costs. This device also reduces air convection, significantly reducing the risk of impurity introduction and improving product quality.

[0029] The adjusting component 8 includes a connecting plate 8.1, fastening bolts 8.2, a first bolt group 8.3, and a second bolt group 8.4;

[0030] A connecting plate 8.1 is vertically installed between the outer wall of the heat insulation plate 3 and the side plate of the water-passing plate 2. The top of the connecting plate 8.1 has two bolt holes 12, through which fastening bolts 8.2 pass. The connecting plate 8.1 is fixedly connected to the side wall of the water-passing plate 2 via the fastening bolts 8.2. A first elongated hole 13 is opened in the middle of the connecting plate 8.1, through which a first bolt group 8.3 passes. The connecting plate 8.1 is fixedly connected to the outer wall of the heat insulation plate 3 via the first bolt group 8.3. A second elongated hole 14 is opened at the bottom of the connecting plate 8.1, through which a second bolt group 8.4 passes. The connecting plate 8.1 is fixedly connected to the outer wall of the heat insulation plate 3 via the second bolt group 8.4. Under the action of the first elongated hole 13 and the second elongated hole 14, the connecting plate 8.1 is connected to the heat insulation plate 3 via the first bolt group 8.3 and the second bolt group 8.4.

[0031] An observation port 15 is provided on the surface of the heat insulation plate 3 on the side away from the water plate 2. A bracket (not shown in the figure) is provided on one side of the observation port 15. A camera (not shown in the figure) is fixed on the bracket. The camera is set in correspondence with the observation port 15. The camera can see the melting of the raw materials inside the rotary forming mold 6 and the consumption of the electrode 17 through the observation port 15.

[0032] The specific operation process of this embodiment is as follows:

[0033] High-purity quartz sand is added to the rotary molding die 6, and then the rotary molding die 6 is sent to the melting zone. Then the water plate 2 is lowered along the lifting bracket 1 of electrode 17 until the top of the rotary molding die 6 is placed in the space enclosed by four heat insulation plates 3 and water plate 2. Circulating cooling water is introduced into the heat insulation plates 3 and water plate 2 to reduce the heat diffusion to the outside.

[0034] Then, electrode 17 is lowered, passing through the through hole of water plate 2 and placed at a certain distance inside the rotary molding mold 6. Electrode 17 is heated by electricity, and at the same time, the drive mechanism 16 runs to drive the rotary molding mold 6 to rotate. The camera sees the melting of the raw materials and the consumption of electrode 17 inside the rotary molding mold 6 in real time through the observation port 15.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat-insulating device for melting quartz crucibles and producing heat-insulating plates, characterized in that, It includes a water-permeable plate and a heat insulation plate; The bottom end face of the water-passing plate is connected to the vertically arranged heat insulation plate near the four edges. The four heat insulation plates and the water-passing plate form a heat insulation zone, and the top of the mold is placed in the heat insulation zone. The outer wall of the heat insulation plate on the side away from the water-passing plate is connected to the side wall of the water-passing plate by a hinge, and the outer walls of the remaining heat insulation plates are connected to the side walls of the water-passing plate by an adjusting member. The heat insulation board has a hollow cavity inside, which is filled with circulating cooling water. The outer wall of the heat insulation board is fixed with a water inlet connector and a water outlet connector.

2. The heat insulation device for melting quartz crucibles and insulating plates according to claim 1, characterized in that, The hinge is a hinge.

3. The quartz crucible melt-sealing plate heat retaining device according to claim 2, wherein The adjusting component includes a connecting plate, fastening bolts, a first bolt group, and a second bolt group; The connecting plate is vertically disposed between the outer wall of the heat insulation plate and the side plate of the water passage plate. The top of the connecting plate is provided with two bolt holes, and the fastening bolts are inserted into the bolt holes. The connecting plate is fixedly connected to the side wall of the water passage plate by the fastening bolts. The connecting plate has a first elongated hole in the middle, and a first bolt group passes through the first elongated hole. The connecting plate is fixedly connected to the outer wall of the heat insulation plate through the first bolt group. The bottom of the connecting plate is provided with a second elongated hole, and a second bolt group is inserted into the second elongated hole. The connecting plate is fixedly connected to the outer wall of the heat insulation plate by the second bolt group.

4. The heat insulation device for melting quartz crucibles and insulating plates according to claim 3, characterized in that, An observation port is provided on the surface of the heat insulation plate on the side away from the water-passing plate.

Images