CN215799136U

CN215799136U - Tin bath breast wall structure of high temperature resistance heat altered shape

Info

Publication number: CN215799136U
Application number: CN202122255948.XU
Authority: CN
Inventors: 林岩忠; 马月文; 汪鑫
Original assignee: Cnbm Design & Research Institute Co ltd
Current assignee: Cnbm Design & Research Institute Co ltd
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2022-02-11
Anticipated expiration: 2031-09-17

Abstract

The utility model discloses a molten tin bath breast wall structure resisting high temperature and thermal deformation, which comprises a sealing cover side plate and is characterized in that a breast wall support iron is arranged on the sealing cover side plate, a plurality of breast wall support plates are fixed on the breast wall support iron, breast wall bricks are arranged on the breast wall support iron and the breast wall support plates, and a heat-insulating layer is arranged on one side of each breast wall brick, which faces the sealing cover side plate; the front end of the breast wall support iron is provided with a plurality of expansion joints. The breast wall supporting plate is designed in a sectional type and modular manner, so that the whole breast wall is small in thermal deformation and good in sealing performance; the tin bath breast wall has simple structure, does not need auxiliary facilities such as a mandril and the like for supporting when the temperature of the baking bath is raised, and reduces the manufacturing cost; the simple and reasonable arrangement of the connecting pieces and the fixing pieces further improves the safety of the breast wall.

Description

Tin bath breast wall structure of high temperature resistance heat altered shape

Technical Field

The utility model relates to a tin bath technology in float glass production equipment, in particular to a tin bath breast wall structure with high temperature and thermal deformation resistance.

Background

The process of float glass production is completed in a tin bath, and the operating temperature range of the float glass production is 600-1070 ℃. The two sides of the tin bath, the top cover and the bath body are called as breast wall structures and comprise lower tin bath edge seals and upper tin bath breast wall structures. The molten tin bath breastplate structure is supported by the breastplate layer board of fixing on the sealed cowling curb plate, and traditional breastplate layer board all adopts every section of sealed cowling monoblock layer board structure to at the anterior dilatation joint of opening of layer board, this kind of traditional breastplate structure causes steel construction thermal expansion to warp easily in the bath is baked to the molten tin bath heats: firstly, the two ends of the breast wall supporting plate are bent and deformed; and the lower part of the side plate of the sealing cover is warped and deformed.

Both of the above deformation cases lead to the following phenomena: a. the sealing between the edge seal and the breast wall supporting plate is difficult, and a large amount of outside air permeates into the tin bath to cause the oxidation of tin liquor; b. the edge seal is stuck and cannot move to influence the operation; c. the breast wall brick can be squeezed apart to influence the structural safety of the breast wall brick.

The currently common treatment methods are: the bracket and the ejector rod are arranged on two sides of the chest wall of the tin bath, and the chest wall supporting plate is tightly pushed by the ejector rod when the temperature of the baking bath is raised. Although the processing method can reduce the warping deformation of the breast wall supporting plate, the cost is greatly increased, and the integral deformation of the tin bath is easily caused due to the limitation of the free thermal expansion of the sealing cover, thereby influencing the production and the use.

Disclosure of Invention

The utility model aims to solve the problems of large thermal expansion deformation of a tin bath breast wall supporting plate, difficult sealing between the tin bath breast wall supporting plate and an edge seal, unsafe breast wall structure and the like in the prior art, and provides a high-temperature thermal deformation resistant tin bath breast wall structure which has a sectional type breast wall supporting plate structure, greatly reduces the thermal expansion deformation of the breast wall, ensures the flatness of a side plate of a sealing cover after a bath is baked and the like.

The technical problem of the utility model is mainly solved by the following technical scheme: a molten tin bath breast wall structure resisting high-temperature thermal deformation comprises a sealing cover side plate, and is characterized in that a breast wall support iron is arranged on the sealing cover side plate, a plurality of breast wall support plates are fixed on the breast wall support iron, breast wall bricks are installed on the breast wall support iron and the breast wall support plates, and a heat insulation layer is arranged on one side of each breast wall brick, which faces the sealing cover side plate; the front end of the breast wall support iron is provided with a plurality of expansion joints.

In the aforementioned molten tin bath breast wall structure resisting high temperature and thermal deformation, preferably, the plurality of breast wall supporting plates are arranged in parallel, each breast wall supporting plate is composed of a bottom plate with a 90-degree elbow at the front end and a rib plate vertically arranged on the bottom plate, wherein a part of the length of the rib plate is located outside the bottom plate.

In the above molten tin bath breast wall structure resisting high temperature and thermal deformation, preferably, when the breast wall supporting plate is matched with the breast wall supporting iron, the length part of the rib plate, which is located outside the bottom plate, is connected with the breast wall supporting iron, and a gap is reserved between the bottom plate and the front end of the breast wall supporting iron.

In the tin bath breast wall structure of high temperature and thermal deformation resistance, as preferred, be equipped with the notch on the breast wall brick, the breast wall brick passes through the notch and seamlessly laminates with the breast wall layer board.

In the tin bath breast wall structure resisting high-temperature thermal deformation, preferably, the space between a plurality of breast wall supporting plates and the size of the breast wall bricks are arranged according to the modulus.

In the above molten tin bath breast wall structure resisting high temperature and thermal deformation, preferably, the distance between two adjacent breast wall supporting plates in the plurality of breast wall supporting plates is a length space required by the installation of two breast wall bricks.

In the above molten tin bath breast wall structure with high temperature and thermal deformation resistance, preferably, the joint of two breast wall bricks between two adjacent breast wall supporting plates is provided with a fixing part.

In the tin bath breast wall structure with high temperature and thermal deformation resistance, preferably, the expansion gap arranged at the front end of the breast wall iron support is 3-5 mm wide and 50-80 mm deep.

According to the technical scheme, the existing side plate of the sealing cover is used as an installation foundation, the angle steel type breast wall supporting iron is fixed on the side plate of the sealing cover, and then the breast wall supporting plate is welded on the breast wall supporting iron to form a supporting steel structure of a breast wall brick and a heat insulation layer. The breast wall supporting plates are arranged in a sectional type structure, and the breast wall supporting plates and the breast wall bricks are arranged in a modular mode, so that the brick types of the breast wall bricks are reduced, and the breast wall supporting plates are convenient to manufacture and install. Generally, two breast wall bricks are arranged between every two adjacent breast wall supporting plates, so that enough structural strength is ensured, thermal deformation of a breast wall supporting steel structure is reduced, and the manufacturing cost is reduced. The breast wall supporting plate is provided with a 90-degree elbow, so that the supporting plate forms a small flanging angle steel structure, the yield strength of the breast wall supporting plate is improved, and the breast wall supporting plate also plays a role of a baffle to prevent breast wall bricks from inclining inwards; the rib plates change the overall strength of the breast wall supporting plate made of the plate, and serve as a positioning mechanism of the breast wall brick with the notch, so that the breast wall brick has multiple purposes.

The expansion joint arranged on the sectional type breast wall supporting plate structure and the front part of the supporting iron can avoid the phenomenon that the breast wall brick is possibly extruded and cracked due to the thermal expansion deformation of the steel structure in the temperature rise of the tin bath baking kiln, thereby protecting the structure safety of the breast wall brick.

Preferably, the joints of the two breast wall bricks between two adjacent breast wall supporting plates are fixed by fixing pieces to further improve the safety of the breast wall.

Compared with the prior art, the utility model has the beneficial effects that: the breast wall supporting plate is designed in a sectional type and modular manner, so that the whole breast wall is small in thermal deformation and good in sealing performance; the tin bath breast wall has simple structure, does not need auxiliary facilities such as a mandril and the like for supporting when the temperature of the baking bath is raised, and reduces the manufacturing cost; the simple and reasonable arrangement of the connecting pieces and the fixing pieces further improves the safety of the breast wall.

Drawings

Fig. 1 is a schematic (half-side) view of one configuration of the present invention.

FIG. 2 is a partial top view of the tin bath breast wall brick structure of the utility model.

Fig. 3 is a schematic diagram of the position structure of the breast wall back iron and the breast wall supporting plate of the utility model.

Fig. 4 is a bottom view of fig. 3.

Fig. 5 is a schematic structural view of a breast wall support plate of the present invention.

In the figure: 1. the tin bath edge sealing structure comprises a tin bath edge sealing body, 2 parts of a sealing cover side plate, 3 parts of a tin bath top cover, 4 parts of breast wall supporting iron, 401 parts of expansion joints, 5 parts of breast wall supporting plates, 501 parts of a bottom plate, 502 parts of rib plates, 6 parts of breast wall bricks, 7 parts of fixing pieces and 8 parts of an insulating layer.

Detailed Description

The technical scheme of the utility model is further specifically described by the following embodiments and the accompanying drawings.

This embodiment is a molten tin bath breast wall structure of high temperature resistant thermal deformation, as shown in fig. 1, fig. 2, use molten tin bath edge seal 1 and sealed cowling curb plate 2 as the benchmark on the wall brick of tank bottom, at the fixed breast wall back iron 4 of sealed cowling curb plate 2 inboard of molten tin bath edge seal 1 top, the welding has a set of breast wall layer board 5 on the breast wall back iron 4, install breast wall brick 6 on breast wall back iron 4 and a set of breast wall layer board 5, breast wall brick 6 is equipped with heat preservation 8 towards one side of sealed cowling curb plate 2.

A group of breast wall supporting plates 5 are arranged in parallel, the distance between every two breast wall supporting plates 5 and the size of each breast wall brick 6 are arranged according to the modulus, and in the embodiment, the distance between every two adjacent breast wall supporting plates 5 in the group of breast wall supporting plates 5 is based on the length space required by the installation of the two breast wall bricks 6. The structure of the breast wall supporting plate 5 is shown in fig. 4 and 5, and is composed of a bottom plate 501 with a 90-degree bend at the front end and a rib plate 502 vertically welded on the bottom plate, wherein a part of the length of the rib plate 502 is positioned outside the bottom plate. When the breast wall supporting plate 5 is matched with the breast wall supporting iron 4, the length part of the rib plate 502 outside the bottom plate 501 is welded with the breast wall supporting iron 4, but a gap of 3mm is reserved between the bottom plate 501 and the front end edge of the breast wall supporting iron 4.

A group of expansion gaps 401 are formed in the front end of the breast wall support iron 4, the expansion gaps 401 are generally arranged in the center line of the breast wall brick 6, the width of each expansion gap 401 is 3-5 mm, and the depth of each expansion gap 401 is 50-80 mm, as shown in figure 3.

Each breast wall brick 6 is provided with a notch which is matched with the breast wall supporting iron 4, the bottom plate 501 and the rib plate 502, and the breast wall brick 6 is seamlessly attached to the breast wall supporting plate 5 through the notch.

After the breast wall bricks 6 are installed, fixing parts 7 are arranged at the joint of the two breast wall bricks 6 between the two adjacent breast wall supporting plates 5, and the fixing parts 7 consist of fixing rods and fixing plates.

In order to meet the high temperature resistance requirement of the tin bath and be suitable for low-cost manufacture, in the embodiment, the breast wall supporting plate 4 is made of heat-resistant steel, and all fixing parts are also made of heat-resistant steel; the breast wall iron support 5 is made of carbon steel, and the breast wall brick 6 is made of a light insulating brick (mullite brick); the insulating layer 8 is made of polycrystalline mullite fiber felt, calcium silicate board, nano heat insulation board and the like. In addition, the high-temperature area of the breast wall is made of 0Cr25Ni20 heat-resistant stainless steel, the rest area is made of 1Cr18Ni9Ti common stainless steel, and the fixing piece material of the area is also made of 1Cr18Ni9 Ti.

The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modified structure of the present invention is within the scope of the present invention without departing from the principle of the present invention.

Claims

1. A molten tin bath breast wall structure resisting high temperature thermal deformation comprises a sealing cover side plate (2), and is characterized in that a breast wall support iron (4) is arranged on the sealing cover side plate, a plurality of breast wall support plates (5) are fixed on the breast wall support iron, breast wall bricks (6) are installed on the breast wall support iron and the breast wall support plates, and a heat insulation layer (8) is arranged on one side of each breast wall brick, which faces the sealing cover side plate; the front end of the breast wall support iron is provided with a plurality of expansion joints (401).

2. The molten tin bath breast wall structure resisting high temperature and thermal deformation according to claim 1, characterized in that the plurality of breast wall supporting plates (5) are arranged in parallel, and each breast wall supporting plate is composed of a bottom plate (501) with a 90-degree elbow at the front end and a rib plate (502) vertically arranged on the bottom plate, wherein a part of the length of the rib plate is positioned outside the bottom plate.

3. The molten tin bath breast wall structure capable of resisting high temperature and thermal deformation according to claim 2, wherein when the breast wall supporting plate (5) is matched with the breast wall supporting iron (4), the length part of the rib plate, which is positioned outside the bottom plate (501), is connected with the breast wall supporting iron, and a gap is reserved between the bottom plate (501) and the front end of the breast wall supporting iron.

4. A molten tin bath breast wall structure resisting high temperature and heat deformation as claimed in claim 1, 2 or 3, wherein the breast wall brick (6) is provided with a notch, and the breast wall brick is seamlessly jointed with the breast wall supporting plate (5) through the notch.

5. A molten tin bath breast wall structure resisting high temperature and heat deformation as set forth in claim 1, characterized in that the spacing of the plurality of breast wall supporting plates (5) and the size of the breast wall bricks (6) are arranged in modules.

6. A molten tin bath breast wall structure resisting high temperature and heat deformation as set forth in claim 5, characterized in that the distance between two adjacent breast wall support plates of said plurality of breast wall support plates (5) is a space of a length required for installing two breast wall bricks (6).

7. A molten tin bath breast wall structure resisting high temperature and heat deformation as claimed in claim 5, characterized in that a fixing member (7) is provided at the joint of two breast wall bricks (6) between two adjacent breast wall supporting plates (5).

8. The structure of a molten tin bath breast wall with high temperature and thermal deformation resistance as claimed in claim 1, wherein the expansion joint (401) arranged at the front end of the breast wall supporting iron (4) has a width of 3-5 mm and a depth of 50-80 mm.