Heat preservation plug

Abstract

The utility model provides a heat preservation plug. The heat preservation plug comprises a lower-layer bottom plate, a first-layer heat preservation plate, a second-layer heat preservation plate, an upper-layer pressing plate, a second fastening nut and a lead screw. The first-layer heat insulation board and the second-layer heat insulation board are tightly attached to each other; the first-layer insulation board and the second-layer insulation board are clamped between the lower-layer bottom board and the upper-layer pressing board; and the lower-layer bottom plate, the first-layer heat preservation plate, the second-layer heat preservation plate and the upper-layer pressing plate are sequentially fixed through the second fastening nuts and the lead screws. The utility model aims to provide a heat preservation plug which is used for reducing temperature loss in a forming furnace during replacement when an edge roller and a super heater are replaced and avoiding the risk problem of plate breakage and material blockage.

Description

Technical Field

[0001] The utility model relates to the field of liquid crystal glass substrate manufacturing, in particular to a thermal insulation plug. Background Art

[0002] The overflow down-draw method is one of the main methods for producing liquid crystal glass substrates. This method is to mix the raw materials in a specific proportion evenly, put them into the pool furnace and heat them to a molten state, and then transport them to the feed pipe through a platinum pipe, and then enter the overflow device in the muffle furnace through an L tube. When the overflow device is full, the molten glass will overflow along the two sides of the overflow device to the inclined wall surface. At the bottom of the overflow device, the two strands of glass materials merge to form a glass plate root, which is pulled downward by the traction device to form a glass ribbon. The outstanding advantage of this method is that the glass surface does not contact any material, so the produced glass has good flatness and smoothness.

[0003] In production, if the edge drawing machine or super heater needs to be replaced due to failure or the brick tip accumulation needs to be cleaned up, and the edge drawing machine or super heater needs to be disassembled for replacement, the temperature in the molding furnace will dissipate and overflow from the edge drawing machine window after the edge drawing machine or super heater is disassembled, causing the temperature in the molding furnace to quickly lose and decrease, which may easily cause the risk of broken boards and blockages. In the past, when replacing edge drawing machines and super heaters, insulation cotton was used for temporary insulation treatment, but the insulation effect was not ideal, and the insulation surface became hard after high temperature and could not be reused, which easily caused material waste and environmental pollution. Therefore, during the disassembly and replacement of the edge drawing machine or super heater, it is particularly important to use an insulation plug to block the edge drawing machine window to reduce the temperature loss in the molding furnace. Utility Model Content

[0004] In view of the problems existing in the above-mentioned prior art, the purpose of the utility model is to provide a thermal insulation plug, which is used to reduce the temperature loss in the molding furnace during the replacement of the edge drawing machine and the super heater, and avoid the risk of broken plates and blockages.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a heat-insulating plug, comprising: a lower bottom plate, a first heat-insulating plate, a second heat-insulating plate, an upper pressure plate, a first fastening nut, a second fastening nut, and a screw rod;

[0007] The first layer of insulation board and the second layer of insulation board are placed closely together;

[0008] The first layer of insulation board and the second layer of insulation board are sandwiched between the lower bottom plate and the upper pressing plate, and the lower bottom plate is fixed by a first fastening nut;

[0009] The lower bottom plate, the first insulation plate, the second insulation plate and the upper pressing plate are fixed in sequence through the second fastening nut and the screw rod.

[0010] Optionally, the insulation plug is divided into two types: an edge drawing machine insulation plug and a super heater insulation plug.

[0011] Optionally, the first insulation board is a 50 mm thick glass fiber board, and the second insulation board is a 25 mm thick glass fiber board.

[0012] Optionally, the first layer of insulation board and the second layer of insulation board are both glass fiber boards that can withstand temperatures above 1000°C.

[0013] Optionally, the size of the first layer of insulation board is smaller than the size of the edge drawing machine window and the size of the second layer of insulation board is larger than the size of the edge drawing machine window.

[0014] Optionally, the upper laminate is a square mm thick steel plate with a hole in the center.

[0015] Optionally, the center of the lower bottom plate is welded to the end of the screw rod.

[0016] Optionally, when the insulation plug is a side edge machine insulation plug and is replaced, a side edge machine window is provided on the molding furnace, and the side edge machine is replaced separately on the side edge machine window. At this time, the side edge machine plug can be inserted into the lower position of the side edge machine window after the side edge machine is disassembled.

[0017] Optionally, when the insulation plug is a super heater insulation plug and is replaced, the edge drawing machine extends into the molding furnace through the edge drawing machine window, and the super heater above the edge drawing machine, the super heater insulation plug can be inserted into the upper position of the edge drawing machine window after the super heater is removed.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the thermal insulation plug provided by the present invention for replacement of the edge drawing machine and the super heater has a compact structure, and during the disassembly and replacement of the edge drawing machine or the super heater, the thermal insulation plug can be used to tightly block the edge drawing machine window, thereby reducing the temperature loss in the molding furnace, and the utility model is practical and convenient, can be used repeatedly, and is relatively environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the solutions in the prior art, the drawings required for use are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of a heat preservation plug used for replacing an edge drawing machine and a super heater according to an embodiment of the utility model;

[0021] Figure 2A schematic diagram of the application effect of a heat preservation plug for an edge drawing machine according to an embodiment of the utility model;

[0022] Figure 3 A schematic diagram of the application effect of a super heater insulation plug according to an embodiment of the utility model. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The embodiments described are only part of the embodiments of the present invention, rather than all of the embodiments. It should be noted that the embodiments listed in the present invention and the features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] The utility model provides a heat preservation plug, which is used for replacing the edge drawing machine and the super heater. The heat preservation plug of the edge drawing machine has the same structure as the heat preservation plug of the super heater, and the size is different according to the size of the edge drawing machine and the super heater inserted into the edge drawing machine window. Figure 1 As shown, the bottom of the insulation plug has a lower bottom plate 21, the center of the lower bottom plate 21 is welded and fixed to one end of the screw rod 27, the screw rod 27 passes through the middle of the first insulation board 23 and the second insulation board 24 in sequence, the first insulation board 23 and the second insulation board 24 are placed closely; and the first insulation board 23 and the second insulation board 24 are sandwiched between the lower bottom plate 21 and the upper pressing plate 25, and the lower bottom plate 21 is fixed by the first fastening nut 22;

[0025] The first insulation board 23 is slightly smaller than the edge drawing machine window and can enter the edge drawing machine window. The second insulation board 24 is larger than the window and fits with the furnace wall of the edge drawing machine window to seal the gap of the edge drawing machine window. An upper laminate is provided on the upper part of the second insulation board. A screw rod passes through the center of the upper laminate. A nut of corresponding size is installed behind the screw rod. The lower bottom plate 21 and the screw rod 27 that fasten the first insulation board 23, the second insulation board 24, and the upper laminate 25 together are made of metal materials that are resistant to high temperatures above 1000°C.

[0026] Optionally, the insulation plug is divided into two types: an edge drawing machine insulation plug and a super heater insulation plug.

[0027] Taking the edge drawing machine insulation plug as an example, the first insulation board 23 is a glass fiber board with a thickness of 50 mm, and the second insulation board 24 is a glass fiber board with a thickness of 25 mm.

[0028] Optionally, the first insulation board 23 and the second insulation board 24 are both glass fiber boards with a high temperature resistance of more than 1000°C.

[0029] Optionally, the size of the first layer of insulation board 23 is smaller than the size of the edge drawing machine window and the size of the second layer of insulation board (24) is larger than the size of the edge drawing machine window.

[0030] It should be noted that one edge of the second insulation board is flush with the contact edge of the super heater or the edge drawing machine to ensure a good sealing effect.

[0031] Optionally, the upper laminate plate 25 is a square steel plate with a thickness of 4 mm and a hole in the center, for example with a diameter of ø12 mm, which is set here according to the actual size.

[0032] Optionally, the center of the lower bottom plate 21 is welded to the end of the screw rod 27 .

[0033] The super heater insulation plug and the edge drawing machine insulation plug have the same structure. The difference is that the first layer insulation board 23 and the second layer insulation board 24 are different in size due to the different sizes of the edge drawing machine window and the super heater window. The length and width of the first layer insulation board 23 and the second layer insulation board 24 are different. The size of the insulation plug is determined according to actual conditions.

[0034] Alternatively, if Figure 2 As shown, when the insulation plug is a side drawing machine insulation plug and is replaced, a side drawing machine window 12 is provided on the molding furnace 1, and the side drawing machine 3 is replaced separately on the side drawing machine window 12. At this time, the side drawing machine plug 2 can be inserted into the lower position of the side drawing machine window 12 after the side drawing machine 3 is disassembled.

[0035] Alternatively, if Figure 3 As shown, when the insulation plug is a super heater insulation plug and is replaced, the edge drawing machine 3 extends into the molding furnace 1 through the edge drawing machine window 12, and the super heater 4 above the edge drawing machine 3, the super heater insulation plug can be inserted into the upper position of the edge drawing machine window after the super heater 4 is removed.

[0036] It should be noted that in production, when the edge drawing machine or super heater needs to be replaced due to failure or the brick tip accumulation needs to be cleaned, and the edge drawing machine or super heater needs to be disassembled for replacement, the temperature in the molding furnace will dissipate and overflow from the edge drawing machine window after the edge drawing machine or super heater is disassembled, causing the temperature in the molding furnace to rapidly lose and decrease, which may easily cause the risk of broken boards and blockages. In the past, when replacing edge drawing machines and super heaters, insulation cotton was used for temporary insulation treatment, but the insulation effect was not ideal, and the insulation surface became hard after high temperature and could not be reused, which easily caused material waste and environmental pollution. When the edge drawing machine plug or super heater insulation plug provided by the utility model is adopted, the technical problems of poor insulation effect and poor environmental protection in the prior art can be avoided.

[0037] like Figure 2 , 3The thermal insulation plug shown is used for replacing the edge drawing machine and the super heater, and includes a furnace body for manufacturing glass, on which there are the edge drawing machine and the super heater window, a first part of the thermal insulation board, which can be inserted into the edge drawing machine window, and a second part of the thermal insulation board, which is fitted with the outer wall of the furnace body, and a screw handle for easy operation by personnel, which blocks the edge drawing machine and the super heater window through the first part of the thermal insulation board and the second part of the thermal insulation board, thereby reducing heat loss in the furnace.

[0038] When the edge machine or super heater fails and needs to be replaced or the brick tip accumulation needs to be cleaned up, the edge machine or super heater needs to be disassembled for replacement. After the edge machine or super heater is disassembled, the temperature in the molding furnace will dissipate and overflow from the edge machine window, causing the temperature in the molding furnace to quickly lose and decrease, which may cause the risk of broken boards and blockage. Therefore, after the edge machine or super heater is disassembled, the operator uses the insulation plug to make the first layer of insulation board enter the edge machine window, and the second layer of insulation board fits the furnace wall, which can quickly seal and insulate the leaking edge machine window, and it is convenient for personnel to operate.

[0039] The above description is merely a preferred embodiment of the present invention and is not intended to impose any limitation on the technical solution of the present invention. Those skilled in the art should understand that, without departing from the spirit and principles of the present invention, the technical solution may be subjected to several simple modifications and substitutions, and these modifications and substitutions are also within the scope of protection covered by the claims.

Claims

1. A thermal insulation plug, characterized in that: include: A lower bottom plate (21), a first insulation plate (23), a second insulation plate (24), an upper pressure plate (25), a first fastening nut (22), a second fastening nut (26), and a screw rod (27); The first layer of thermal insulation board (23) and the second layer of thermal insulation board (24) are placed closely together; The first layer of thermal insulation board (23) and the second layer of thermal insulation board (24) are sandwiched between the lower bottom plate (21) and the upper press plate (25), and the lower bottom plate (21) is fixed by the first fastening nut (22); The lower bottom plate (21), the first insulation plate (23), the second insulation plate (24), and the upper pressing plate (25) are fixed in sequence by means of the second fastening nut (26) and the screw rod (27).

2. A thermal insulation plug according to claim 1, characterized in that: The thermal insulation plug is divided into two types: an edge drawing machine thermal insulation plug and a super heater thermal insulation plug.

3. The thermal insulation plug according to claim 1, characterized in that: The first layer of thermal insulation board (23) and the second layer of thermal insulation board (24) are both glass fiber boards that are resistant to high temperatures above 1000°C.

4. A thermal insulation plug as claimed in claim 3, characterized in that: The size of the first layer of thermal insulation board (23) is smaller than the size of the edge drawing machine window, and the size of the second layer of thermal insulation board (24) is larger than the size of the edge drawing machine window.

5. The thermal insulation plug according to claim 1, characterized in that: The upper laminate (25) is a square steel plate with a thickness of 4 mm and a hole in the center.

6. The thermal insulation plug according to claim 1, characterized in that: The center of the lower bottom plate (21) is welded to the end of the screw rod (27).

7. The thermal insulation plug according to claim 2, characterized in that: When the insulation plug is a side edge machine insulation plug and is to be replaced, a side edge machine window (12) is provided on the molding furnace (1), and the side edge machine (3) is replaced separately on the side edge machine window (12). At this time, the side edge machine plug (2) is inserted into the lower position of the side edge machine window (12) after the side edge machine (3) is disassembled.

Images