An improved structure for ramming coke oven roof

Abstract

The invention relates to an improved structure of a ramming coke oven roof. The roof area of the ramming coke oven is provided with an ascending pipe hole, a smoke guide hole and a carbon removal hole. The carbon removal holes are blocked after the coke oven is baked to reduce heat dissipation from the roof and improve the operating environment of the roof. The operation of blocking the carbon removal holes is performed after the baking is completed to ensure smooth airflow during the baking.

Description

Technical Field

[0001] The invention relates to the technical field of ramming coke ovens, and in particular to an improved structure of a ramming coke oven top. Background Art

[0002] A ramming coke oven is a side-loading coke oven that uses the ramming method to charge coal for coking. Modern ramming coke ovens typically have riser holes, smoke guide holes, and carbon removal holes in the top area. The carbon removal holes are primarily used to burn off deposited carbon. After pushing the coke, the cover is opened, and air is drawn into the carbonization chamber to burn off the graphite, reducing the increased resistance to pushing the coke and the difficulty in extracting the raw gas caused by graphite accumulation. However, field feedback indicates that the carbon removal holes are rarely used in production, becoming almost a mere decoration. Furthermore, the presence of the carbon removal holes inevitably increases heat dissipation from the top of the furnace, increasing heat loss, affecting top temperature control, and creating a negative impact on the top operating environment. Summary of the Invention

[0003] The present invention provides an improved structure for a ramming coke oven roof, which blocks unused carbon removal holes to reduce heat dissipation from the roof and improve the operating environment of the roof. The operation of blocking the carbon removal holes is performed after the oven is baked to ensure smooth airflow during oven baking.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] The invention discloses an improved structure of a ramming coke oven roof. The roof area of the ramming coke oven is provided with an ascending pipe hole, a smoke guide hole and a carbon removal hole; the carbon removal hole is blocked after the coke oven is baked.

[0006] The furnace top area is divided into an upper furnace top area and a lower furnace top area, and a sliding layer is provided between the upper furnace top area and the lower furnace top area; the decarbonization hole is formed by multiple layers of masonry, wherein the masonry above the sliding layer has a boss structure extending into the decarbonization hole; the decarbonization hole above the boss structure is sealed with a cross-top brick, and above the cross-top brick is the top masonry, and the top surface of the top masonry is flush with the top surface of the furnace top area.

[0007] The span top bricks are composed of a plurality of rectangular clay bricks arranged side by side. The length of the clay bricks is greater than the width of the carbon removal holes. Both ends of the clay bricks are supported on the boss structure.

[0008] The top masonry is composed of multiple layers of refractory bricks, and the refractory bricks used in each layer are the same as the refractory bricks at the corresponding height of the furnace top area.

[0009] The top masonry comprises, from bottom to top, a heat-insulating brick layer, a clay brick layer and a cylinder brick layer.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1) Seal the unused carbon removal holes to reduce heat dissipation from the furnace top and improve the furnace top operating environment;

[0012] 2) The operation of blocking the carbon removal holes is carried out after the furnace is baked to ensure smooth air flow during the baking process;

[0013] 3) The blocking structure is simple and easier to build than the transmission structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of an improved structure of a ramming coke oven roof according to the present invention (a longitudinal cross-sectional view of the carbonization chamber).

[0015] Figure 2 yes Figure 1 A partial enlarged view of .

[0016] Figure 3 yes Figure 2 AA view in.

[0017] Figure 4 It is a schematic diagram of the masonry form of the span top bricks of the present invention.

[0018] In the figure: 1. Riser hole 2. Carbon removal hole 3. Smoke guide hole 4. Boss structure 5. Cross-top brick DETAILED DESCRIPTION

[0019] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings:

[0020] like Figure 1-Figure 4 As shown, the improved structure of the ramming coke oven roof of the present invention is provided with an ascending pipe hole 1, a smoke guide hole 3 and a carbon removal hole 2 in the roof area of the ramming coke oven; the carbon removal hole 2 is blocked after the coke oven is baked.

[0021] The furnace top area is divided into an upper furnace top area and a lower furnace top area, and a sliding layer is provided between the upper furnace top area and the lower furnace top area; the decarbonization hole 2 is formed by multiple layers of masonry, wherein the masonry above the sliding layer has a boss structure 4 extending into the decarbonization hole 2; the decarbonization hole 2 above the boss structure 4 is sealed with a cross-top brick 5, and above the cross-top brick 5 is the top masonry, and the top surface of the top masonry is flush with the top surface of the furnace top area.

[0022] The span bricks 5 are composed of a plurality of rectangular clay bricks arranged side by side. The length of the clay bricks is greater than the width of the carbon removal holes 2 , and both ends of the clay bricks are supported on the boss structure 4 .

[0023] The top masonry is composed of multiple layers of refractory bricks, and the refractory bricks used in each layer are the same as the refractory bricks at the corresponding height of the furnace top area.

[0024] The top masonry comprises, from bottom to top, a heat-insulating brick layer, a clay brick layer and a cylinder brick layer.

[0025] The roof of a traditional ramming coke oven is equipped with an ascending pipe hole 1, a smoke guide hole 3, and a carbon removal hole 2. The carbon removal hole 2 is designed to burn off carbon deposits, reducing problems such as increased coke pushing resistance and difficulty in extracting raw gas caused by graphite accumulation. However, in actual production, other methods are often used for carbon removal, so the carbon removal hole 2 is rarely used.

[0026] The improved structure of a rammed coke oven roof described in the present invention retains the carbon removal holes 2 during oven baking to ensure smooth airflow and improve the high-temperature resistance of the furnace wall. After oven baking is complete, the carbon removal holes 2 are sealed. A raised platform structure 4, built around the carbon removal holes 2 in the sliding layer of the furnace roof, is covered with cross-roof bricks 5. A layer of refractory materials, such as clay bricks, insulation bricks, and cylinder bricks, is then used to seal the carbon removal holes 2 above the sliding layer to the upper flat surface of the furnace roof. This reduces heat dissipation from the furnace roof and improves the operating environment.

[0027] The following examples are implemented on the premise of the technical solution of the present invention, and provide detailed implementation methods and specific operating processes, but the protection scope of the present invention is not limited to the following examples.

[0028] [Example]

[0029] like Figure 1 、 Figure 2 、 Figure 3 As shown, in this embodiment, the roof area of the ramming coke oven (above the carbonization chamber) is equipped with a riser hole 1 on the coke side. Along the coke side-to-machine side, a decarbonization hole 2, a smoke elimination vehicle track, a smoke guide hole 3, a decarbonization hole 2, a smoke elimination vehicle track, and a smoke guide hole 3 are sequentially arranged. In other words, two decarbonization holes 2 are provided for each carbonization chamber. Since the decarbonization holes 2 are no longer used during normal coke oven production, they are intended to be blocked.

[0030] Before the furnace is baked, the riser hole 1 and smoke guide hole 3 are built to the top as shown in the figure, and the carbon removal hole 2 is built to the boss structure 4. After the furnace is baked, clay bricks are used to build cross-top bricks 5 above the boss structure 4. Above the cross-top brick layer, insulation brick layers, clay brick layers, and cylinder brick layers are built in sequence to completely block the boss structure 4 and the carbon removal hole 2 from the furnace top. The blocking masonry is tightly connected to the surrounding furnace roof masonry.

[0031] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An improved structure for the roof of a ramming coke oven, wherein the roof area of the ramming coke oven is provided with riser holes, smoke guide holes and carbon removal holes; characterized in that: The decarbonization holes are sealed after the coke oven is baked; the furnace top area is divided into an upper furnace top area and a lower furnace top area, and a sliding layer is provided between the upper furnace top area and the lower furnace top area; the decarbonization holes are formed by multiple layers of masonry, wherein the masonry above the sliding layer has a boss structure extending into the decarbonization holes; the decarbonization holes above the boss structure are sealed with cross-top bricks, which are composed of multiple rectangular clay bricks arranged side by side, the length of the clay bricks being greater than the width of the decarbonization holes, and both ends of the clay bricks are supported on the boss structure; above the cross-top bricks is the top masonry, and the top surface of the top masonry is flush with the top surface of the furnace top area; the top masonry is composed of multiple layers of refractory bricks, and the refractory bricks used in each layer of refractory bricks are the same as the refractory bricks of the corresponding height in the furnace top area.

2. The improved structure of a ramming coke oven roof according to claim 1, characterized in that: The top masonry comprises, from bottom to top, a heat-insulating brick layer, a clay brick layer and a cylinder brick layer.

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