Gap brick structure capable of prolonging service life of glass kiln pool wall brick

Abstract

The invention provides a gap brick structure capable of prolonging the service life of a glass kiln pool wall brick, and belongs to the technical field of float kilns. The kiln comprises a pool wall and a wall-hanging brick located above the pool wall, a gap is formed between the top of the pool wall and the lower surface of the wall-hanging brick, the lower surface of the wall-hanging brick is an inclined surface, the lower surface of the wall-hanging brick is a lower inclined surface close to the inner side face of the pool wall brick, and a gap brick is inserted between the top face of the pool wall and the lower surface of the wall-hanging brick. And the upper surfaces of the gap bricks are matched with the lower surfaces of the wall hanging bricks. The kiln has the advantages of long service life and the like.

Description

Technical Field

[0001] The invention belongs to the technical field of float furnaces and relates to a gap brick structure capable of extending the service life of glass furnace pool wall bricks. Background Art

[0002] The service life of pool wall bricks is an important factor affecting the service life of glass kilns. The original service life of pool wall bricks in different glass kilns is 3-5 years. The kiln life is subsequently extended by tying bricks in the pool. The design number of brick tying for conventional glass kilns is 2-3 times. The number of brick tying for each kiln has been determined at the beginning of the design. Due to inadequate maintenance of pool wall bricks during operation and rapid erosion of the pool wall, the energy consumption of the kiln increases and its service life is limited.

[0003] Existing pool wall tile gap and hook brick design: Figure 2 As shown, the pool wall of the glass kiln generally adopts fused zirconium corundum refractory bricks, and the flame space above the pool wall bricks is hook bricks. At present, the furnace design reserves a gap of 30 to 50 mm between the pool wall bricks and the hook bricks for the expansion of the pool wall bricks during the kiln baking period. After the pool wall bricks are expanded, ceramic fiber ropes and refractory mud are used to seal. The pool wall bricks erode fastest at the glass liquid surface. When this position erodes to a certain extent, transverse cracks will appear near the liquid surface line of the pool wall bricks, and the upper broken part will gradually tilt into the kiln pool. To ensure the safety of the kiln pool, the upper part of the pool wall bricks needs to be tied in advance after the transverse cracks increase. After the bricks are tied, the erosion speed of the original pool wall will be significantly accelerated as the temperature rises. Therefore, it is a difficult problem that the glass kiln needs to solve to extend the service life of the original pool wall as much as possible and postpone the time of the first pool wall brick tying. Summary of the invention

[0004] The purpose of the present invention is to provide a gap brick structure that can extend the service life of glass furnace pool wall bricks in view of the above-mentioned problems existing in the prior art. The technical problem to be solved by the present invention is how to extend the service life of the furnace pool wall.

[0005] The purpose of the present invention can be achieved through the following technical solutions: a gap brick structure that can extend the service life of glass furnace pool wall bricks, the furnace includes a pool wall and wall bricks located above the pool wall, and there is a gap between the top of the pool wall and the lower surface of the wall brick. It is characterized in that the lower surface of the wall brick is an inclined surface, and the lower surface of the wall brick is a lower inclined surface on the side close to the inner side of the pool wall brick. A gap brick is inserted between the top surface of the pool wall and the lower surface of the wall brick, and the upper surface of the gap brick is adapted to the lower surface of the wall brick.

[0006] Furthermore, the upper surface of the gap brick is inclined at an angle of 3 to 30° to the horizontal plane.

[0007] In the prior art, the gap between the pool wall bricks and the hook bricks is sealed by ceramic fiber ropes and refractory mud, which is essentially a soft connection. When corrosion occurs on the inner side of the pool wall bricks, as the degree of corrosion continues, fractures are likely to occur at the thin-walled position, and the portion above the fractured position will fall into the pool. Therefore, in the prior art, after the corrosion degree of the pool wall bricks reaches a certain level, it is necessary to perform brick tying treatment on the outside of the pool wall, that is, to re-attach bricks on the outside of the pool wall to reinforce the pool wall. Due to the limited spacing between the outside of the pool wall and the outer frame of the kiln, the thickness and number of brick tying are also limited. Moreover, after the first brick tying, the corrosion resistance of the pool wall bricks is significantly reduced. Therefore, extending the time for the first brick repair of the kiln pool wall can greatly extend the service life of the kiln pool wall. This solution changes the existing soft connection seal to a "hard support connection" and seal of a wedge-shaped structure, which can prevent the kiln pool wall from collapsing inward even when it is thinner and weaker, thereby extending the brick tying time.

[0008] The pool wall tiles will expand during the heating process from cold to hot. The design thickness of the gap bricks must fully consider the expansion coefficient of the pool wall tiles. For safety reasons, the gap bricks can only be embedded and installed after the pool wall tiles have completed expansion.

[0009] The gap bricks are set to a wedge-shaped structure, which can adaptively compensate for the fluctuation of material expansion to achieve the effect of traditional "flexible connection" on the one hand, and facilitate the installation and embedding of the gap bricks on the other hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the gap brick structure of the service life of the kiln pool wall brick.

[0011] Figure 2 It is a schematic diagram of the gap brick structure of the service life of kiln pool wall bricks in the prior art.

[0012] Figure 3 yes Figure 1 Enlarged view of part A in the figure.

[0013] In the figure, 1. pool wall; 2. wall-hanging bricks; 3. gap bricks. DETAILED DESCRIPTION

[0014] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0015] like Figure 1 and Figure 3As shown, the kiln includes a pool wall 1 and a wall brick 2 located above the pool wall 1, a gap is provided between the top of the pool wall 1 and the lower surface of the wall brick 2, the lower surface of the wall brick 2 is an inclined surface, and the lower surface of the wall brick 2 is a lower inclined surface on the side close to the inner side of the pool wall 1 brick, and a gap brick 3 is inserted between the top surface of the pool wall 1 and the lower surface of the wall brick 2, and the upper surface of the gap brick 3 is adapted to the lower surface of the wall brick 2. The upper surface of the gap brick 3 is inclined at an angle of 3 to 30 degrees to the horizontal plane.

[0016] In the prior art, the gap between the pool wall and the hook brick is sealed by a ceramic fiber rope and a refractory mud seal, which is essentially a soft connection. When corrosion occurs on the inner side of the pool wall brick, as the degree of corrosion continues, it is easy to break at the thin wall position, and the part above the break position will fall into the pool. Therefore, in the prior art, after the corrosion degree of the pool wall brick reaches a certain level, it is necessary to perform a brick tying process on the outside of the pool wall 1, that is, to re-attach bricks on the outside of the pool wall 1 to reinforce the pool wall 1. Since the distance between the outside of the pool wall 1 and the outer frame of the kiln is limited, the thickness and number of brick tying are also limited. Moreover, after the first brick tying, the corrosion resistance of the pool wall brick is significantly reduced. Therefore, extending the time for the first brick repair of the kiln pool wall 1 can greatly extend the service life of the kiln pool wall 1. This solution changes the existing soft connection seal to a "hard support connection" and seal of a wedge-shaped structure, which can prevent the kiln pool wall 1 from collapsing inward even when it is thinner and weaker, thereby extending the brick tying time.

[0017] The pool wall tiles will expand during the heating process from cold to hot. The design thickness of the gap bricks 3 must fully consider the expansion coefficient of the pool wall tiles. For safety reasons, the gap bricks 3 can only be embedded and installed after the pool wall tiles have completed expansion.

[0018] The gap brick 3 is set to a wedge-shaped structure, which can adaptively compensate for the fluctuation of material expansion to achieve the effect of traditional "flexible connection" on the one hand, and facilitate the installation and embedding of the gap brick 3 on the other hand.

[0019] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A gap brick structure capable of extending the service life of glass furnace pool wall bricks, the furnace comprising a pool wall (1) and a wall brick (2) located above the pool wall (1), a gap being provided between the top of the pool wall (1) and the lower surface of the wall brick (2), characterized in that: The lower surface of the wall-hanging brick (2) is an inclined surface, and the lower surface of the wall-hanging brick (2) is a lower inclined surface on the side close to the inner side surface of the pool wall (1). A gap brick (3) is inserted between the top surface of the pool wall (1) and the lower surface of the wall-hanging brick (2), and the upper surface of the gap brick (3) is adapted to the lower surface of the wall-hanging brick (2).

2. A gap brick structure capable of extending the service life of glass furnace pool wall bricks according to claim 1, characterized in that: The upper surface of the gap brick (3) is inclined at an angle of 3 to 30° to the horizontal plane.

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