Small furnace door with brick groove protective sleeve

Abstract

The utility model discloses a small furnace door with a brick groove protective sleeve, which comprises a small furnace door, a cast iron brick groove is arranged at the top of the small furnace door, the cast iron brick groove is of a cross beam structure, two ends of the cast iron brick groove are fixedly connected with the small furnace door, a heat insulation protection mechanism is arranged on the cast iron brick groove, and the heat insulation protection mechanism comprises a heat insulation layer, the heat insulation and heat preservation layer is arranged on the inner side of the cast iron brick groove, an outer sheath is arranged outside the heat insulation and heat preservation layer, the outer sheath is detachably installed on the cast iron groove bricks, and the heat insulation and heat preservation layer is clamped between the cast iron groove bricks; the cast iron brick groove of the small furnace door is simple in structure and convenient to use, is subjected to heat insulation protection of the protection sleeve and the heat insulation protection layer, effectively avoids the influence of rapid cooling and rapid heating during opening and closing of the small furnace door and leveling coal, prolongs the service life of the brick groove, and reduces environmental pollution caused by smoking of the small furnace door.

Description

Technical Field

[0001] This utility model relates to the technical field of brick groove protective sleeves for small furnace doors, specifically a small furnace door with a brick groove protective sleeve. Background Technology

[0002] In coke oven production, the oven doors on the machine side serve to push coke and level coal. The east area of ​​the coking plant has 110 carbonization chambers, each with an oven door. Above the main oven door is a small oven door that is opened by the coke pusher car to access the carbonization chamber through the leveling rod. The rod moves back and forth to level the coal inside the carbonization chamber and keep the space above the oven unobstructed.

[0003] The coal loading process takes 3-4 minutes. The small furnace door has a cast iron brick slot installed on the internal pressure plate to fix and protect it. When the door is closed, the temperature is 850±20°C. After each opening, the external ambient temperature is <40°C. Due to the sudden temperature change, the upper beam of the brick slot peels off in layers, eventually breaking and causing leakage of raw coal gas from the carbonization chamber. The external seal is difficult to maintain due to the small furnace door cover, resulting in smoke pollution. Furthermore, the brick slot of the small furnace door needs frequent replacement, and its service life is less than 1.5 years. To solve these problems, a small furnace door with a protective sleeve for the brick slot is proposed. Summary of the Invention

[0004] The purpose of this invention is to solve the above problems by providing a small furnace door with a brick groove protective sleeve.

[0005] The specific solution of this utility model is: a small furnace door with a brick groove protective sleeve, comprising: a small furnace door, the top of the small furnace door is provided with a cast iron brick groove, the cast iron brick groove is a crossbeam structure, both ends are fixedly connected to the small furnace door, the cast iron brick groove is provided with a heat insulation protection mechanism, the heat insulation protection mechanism includes: a heat insulation layer, the heat insulation layer is provided inside the cast iron brick groove, the heat insulation layer is provided with an outer protective sleeve outside the heat insulation layer, the outer protective sleeve is detachably installed on the cast iron groove bricks, and clamps the heat insulation layer between the cast iron groove bricks.

[0006] Furthermore, the heat insulation layer is a 5 mm thick asbestos felt.

[0007] Furthermore, the protective sleeve is a stainless steel plate with a C-shaped cross-section, and the protective sleeve has an inner groove, the size of which is 10 mm larger than that of the cast iron brick groove.

[0008] Furthermore, the protective sleeve and the cast iron channel brick are fixed by a threaded connection.

[0009] Furthermore, the cast iron channel brick, the heat insulation protective layer, and the protective sleeve are all provided with corresponding connecting holes, bolts, and nuts. The bolts pass through the connecting holes on the protective sleeve, the heat insulation protective layer, and the cast iron channel brick in sequence, and are threadedly connected and tightened to the nuts on the other side.

[0010] Furthermore, the protective sleeve is made of stainless steel plate with a thickness of 10 mm.

[0011] The present invention has the following beneficial effects: The present invention has a simple structure and is easy to use. With the heat insulation protection of the protective sleeve and heat insulation layer, the cast iron brick groove of the small furnace door effectively avoids the effects of rapid cooling and heating when opening and closing the small furnace door and leveling coal, extends the service life of the brick groove, and reduces the environmental pollution caused by smoke from the small furnace door. Attached Figure Description

[0012] Figure 1 A schematic diagram of the mechanism of this utility model;

[0013] Figure 2 This is a schematic diagram of the protective sleeve.

[0014] Figure 3 This is a schematic diagram of the small furnace door structure;

[0015] Figure 4 A schematic diagram showing the connection relationship between the protective sleeve, the heat insulation layer, and the cast iron brick groove;

[0016] In the diagram: 1. Small furnace door; 2. Cast iron brick trough; 3. Outer sheath; 4. Asbestos felt; 5. Bolt; 6. Nut; 7. Connecting hole. Detailed Implementation

[0017] 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 a part of the embodiments of the present utility model, and not all of them. 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.

[0018] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0019] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0020] Please refer to Figures 1-4 A small furnace door 1 with a brick groove protective sleeve includes: a small furnace door 1, a cast iron brick groove 2 on the top of the small furnace door 1, the cast iron brick groove 2 being a crossbeam structure with both ends fixedly connected to the small furnace door 1, a heat insulation protection mechanism on the cast iron brick groove 2, the heat insulation protection mechanism including: a heat insulation layer, the heat insulation layer being disposed inside the cast iron brick groove 2, an outer protective sleeve 3 being disposed outside the heat insulation layer, the outer protective sleeve 3 being detachably installed on the cast iron groove bricks and clamping the heat insulation layer between the cast iron groove bricks.

[0021] In this embodiment, the heat insulation layer is a 5 mm thick asbestos felt 4.

[0022] In this embodiment, the protective sleeve is a stainless steel plate with a C-shaped cross-section. The protective sleeve has an inner groove, the size of which is 10 mm larger than the cast iron brick groove 2.

[0023] In this embodiment, the protective sleeve and the cast iron channel brick are fixed by a threaded connection.

[0024] In this embodiment, the cast iron channel brick, the heat insulation protective layer, and the protective sleeve are all provided with corresponding connecting holes 7, bolts 5, and nuts 6. The bolts 5 pass through the connecting holes 7 on the protective sleeve, the heat insulation protective layer, and the cast iron channel brick in sequence, and are threadedly connected and tightened to the nuts 6 on the other side.

[0025] In this embodiment, the protective sleeve is made of stainless steel plate with a thickness of 10 mm.

[0026] The present invention has the following beneficial effects: The present invention has a simple structure and is easy to use. With the heat insulation protection of the protective sleeve and the heat insulation protective layer, the cast iron brick groove 2 of the small furnace door 1 effectively avoids the effects of rapid cooling and heating when opening and closing the small furnace door 1 and leveling coal, extends the service life of the brick groove, and reduces the environmental pollution caused by smoke from the small furnace door 1.

Claims

1. A small furnace door with a brick groove protective sleeve, comprising: The small furnace door has a cast iron brick groove at its top. The cast iron brick groove is a crossbeam structure with both ends fixedly connected to the small furnace door. The feature is that the cast iron brick groove is provided with a heat insulation protection mechanism, which includes a heat insulation layer. The heat insulation layer is located inside the cast iron brick groove, and an outer protective sleeve is provided outside the heat insulation layer. The outer protective sleeve is detachably installed on the cast iron groove bricks and clamps the heat insulation layer between the cast iron groove bricks.

2. A small furnace door with a brick groove protective sleeve according to claim 1, characterized in that: The heat insulation layer is a 5 mm thick asbestos felt.

3. A small furnace door with a brick groove protective sleeve according to claim 1, characterized in that: The protective sleeve is a stainless steel plate with a C-shaped cross-section. The protective sleeve has an inner groove, the size of which is 10 mm larger than that of the cast iron brick groove.

4. A small furnace door with a brick groove protective sleeve according to claim 1, characterized in that: The protective sleeve and the cast iron channel brick are fixed by threaded connection.

5. A small furnace door with a brick groove protective sleeve according to claim 4, characterized in that: The cast iron channel brick, the heat insulation protective layer, and the protective sleeve are all provided with corresponding connecting holes, bolts, and nuts. The bolts pass through the connecting holes on the protective sleeve, the heat insulation protective layer, and the cast iron channel brick in sequence, and are threadedly connected and tightened to the nuts on the other side.

6. A small furnace door with a brick groove protective sleeve according to claim 3, characterized in that: The protective sleeve is made of stainless steel plate with a thickness of 10 mm.

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