An optimized structure of the furnace wall of the combustion chamber of a coke oven

Abstract

The present invention relates to an optimized structure of the furnace wall of a coke oven combustion chamber, which is composed of two side-by-side combustion chamber furnace walls and multiple vertical flue partition walls arranged between the two combustion chamber furnace walls. The combustion chamber furnace walls are built by multiple furnace wall bricks along the longitudinal direction of the combustion chamber. At both ends of the furnace wall bricks, convex parts are respectively arranged on the side close to the vertical flue, and the convex parts extend towards the inner side of the vertical flue. The convex parts on the furnace wall bricks on both sides of the same vertical flue partition wall wrap the corresponding ends of the vertical flue partition wall therein. The present invention can fundamentally avoid the leakage of the furnace wall, and has the advantages of simple structure, no increase in construction difficulty, obvious effect, economy and practicability.

Description

Technical Field

[0001] The present invention relates to the technical field of coke ovens, and particularly to an optimized furnace wall structure of a combustion chamber of a coke oven. Background Art

[0002] During the production process of a coke oven, the leakage of the furnace wall will cause the untreated raw gas to directly enter the combustion chamber and burn, resulting in a significant increase in the content of SO2 in the waste gas. At the same time, the amount of leaked raw gas cannot be counted, which will cause uneven temperature in the furnace and even lead to local high temperature damage to the furnace body.

[0003] In order to control the leakage of the coke oven furnace wall, currently, the method of post-maintenance is usually adopted, including gunning, ceramic welding repair or local patching. Its maintenance cost is high and the effect is not ideal. Summary of the Invention

[0004] The present invention provides an optimized furnace wall structure of a combustion chamber of a coke oven, which can fundamentally avoid the leakage of the furnace wall, and has the advantages of simple structure, no increase in construction difficulty, obvious effect, economy and practicability.

[0005] In order to achieve the above object, the present invention is realized by adopting the following technical solutions:

[0006] An optimized furnace wall structure of a combustion chamber of a coke oven is composed of two side-by-side combustion chamber furnace walls and multiple vertical flue partition walls arranged between the two combustion chamber furnace walls. The combustion chamber furnace walls are built by multiple furnace wall bricks along the longitudinal direction of the combustion chamber. At both ends of the furnace wall brick, convex parts are respectively arranged on the side close to the vertical flue, and the convex parts extend towards the inner side of the vertical flue. The convex parts on the furnace wall bricks on both sides of the same vertical flue partition wall wrap the corresponding end of the vertical flue partition wall therein.

[0007] The main body of the vertical flue partition wall is of a cuboid structure, one end is a straight end, and the other end is a clamping end. The clamping end is respectively provided with convex tongues on both sides close to the end. Multiple vertical flue partition walls are arranged at intervals along the longitudinal direction of the combustion chamber to form multiple vertical flues. The arrangement directions of adjacent two vertical flue partition walls are opposite. The end face of the clamping end is flush with the outer side face of the corresponding side combustion chamber furnace wall, and the straight end is retracted inside the other side combustion chamber furnace wall. A groove is arranged at one end of the furnace wall brick, and the convex tongue on the vertical flue partition wall and the groove on the furnace wall brick jointly form a clamping structure. The convex parts on the furnace wall bricks on both sides of the same vertical flue partition wall wrap the corresponding clamping structure therein.

[0008] The convex part on the furnace wall brick has a protruding plane parallel to the inner side face of the furnace wall brick. The protruding plane and the inner side face of the furnace wall brick are connected by an inclined plane. The distance between the protruding plane of each furnace wall brick and the outer side face of the furnace wall brick is equal. The distance from the intersection point of the protruding plane and the inclined plane of each furnace wall brick to the center line of the nearest vertical flue partition wall is equal. The inclination angles of the inclined planes of each furnace wall brick are equal.

[0009] A transition fillet is provided between the inclined surface of the protrusion and the inner side surface of the furnace wall brick.

[0010] The vertical fire channel partition wall is built with multiple layers of partition bricks along the height direction of the combustion chamber; on the same vertical surface, two adjacent layers of partition bricks are arranged one positive and one negative.

[0011] The furnace wall of the combustion chamber is built with multiple layers of furnace wall bricks along the height direction of the combustion chamber, and the convex parts of each layer of furnace wall bricks are kept flush.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1) Add convex parts at the joints between the two ends of the furnace wall bricks and the partition bricks to deepen the brick seams between the furnace wall bricks and the partition bricks, effectively preventing the raw coal gas in the carbonization chamber from entering the combustion chamber;

[0014] 2) The convex part on the furnace wall brick is only increased at the joint with the partition brick. The thickness of the wall surface is not changed, which does not affect the heat transfer;

[0015] 3) The shapes of all furnace wall bricks are kept consistent with their relative dimensions in the vertical fire channel, and the outer surfaces of the multiple layers of furnace wall bricks along the height of the combustion chamber are kept flat, so the impact on the airflow is very small.

[0016] 4) The root of the convex part is provided with a transition fillet to avoid stress concentration;

[0017] 5) It has the advantages of simple structure, no increase in construction difficulty, obvious effect, and economical and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of an optimized coke oven combustion chamber wall structure according to the present invention. Figure 1 (Layer N).

[0019] Figure 2 This is a schematic diagram of the structure of an optimized coke oven combustion chamber wall structure according to the present invention. Figure 2 (Layer N+1).

[0020] In the figure: 1. Furnace wall bricks 2. Partition wall bricks 3. Vertical fire channel 4. Protrusion 5. Interlocking structure DETAILED DESCRIPTION

[0021] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings:

[0022] like Figure 1 , Figure 2As shown in the figure, an optimized coke oven combustion chamber wall structure of the present invention is composed of two combustion chamber walls arranged in parallel and multiple vertical flue partition walls arranged between the two combustion chamber walls. The combustion chamber wall is built longitudinally along the combustion chamber by multiple furnace wall bricks 1. At both ends of the furnace wall brick 1, convex portions 4 are respectively provided on one side close to the vertical flue 3, and the convex portions 4 extend towards the inside of the vertical flue 3. The convex portions 4 on the furnace wall bricks 1 on both sides of the same vertical flue partition wall wrap the corresponding ends of the vertical flue partition wall therein.

[0023] The body of the vertical flue partition wall is of a cuboid structure, one end is a straight end, and the other end is a biting end. The biting end is respectively provided with convex tongues on both sides close to the end. Multiple vertical flue partition walls are arranged at intervals longitudinally along the combustion chamber to form multiple vertical flues 3. The setting directions of two adjacent vertical flue partition walls are opposite. The end face of the biting end is flush with the outer side face of the corresponding side combustion chamber wall, and the straight end is retracted inside the other side combustion chamber wall. A groove is provided at one end of the furnace wall brick 1, and the convex tongue on the vertical flue partition wall and the groove on the furnace wall brick 1 together form a biting structure 5. The convex portions 4 on the furnace wall bricks 1 on both sides of the same vertical flue partition wall wrap the corresponding biting structure 5 therein.

[0024] The convex portion 4 on the furnace wall brick 1 has a protruding plane parallel to the inner side face of the furnace wall brick 1, and the protruding plane is connected to the inner side face of the furnace wall brick 1 through an inclined plane. The distance between the protruding plane and the outer side face of each furnace wall brick 1 is equal. The distance from the intersection point of the protruding plane and the inclined plane on each furnace wall brick 1 to the center line of the nearest vertical flue partition wall is equal. The inclination angles of the inclined planes on each furnace wall brick 1 are equal.

[0025] A transition fillet is provided between the inclined plane of the convex portion 4 and the inner side face of the furnace wall brick 1.

[0026] The vertical flue partition wall is built longitudinally along the height of the combustion chamber by multiple partition wall bricks 2. On the same vertical plane, two adjacent layers of partition wall bricks 2 are arranged in a positive and negative manner (as shown in Figure 1 、 Figure 2 ).

[0027] The combustion chamber wall is built longitudinally along the height of the combustion chamber by multiple furnace wall bricks 1, and the convex portions of each layer of furnace wall bricks 1 are kept flush.

[0028] The following embodiments are implemented on the premise of the technical solution of the present invention, and the detailed implementation manners and specific operation processes are given, but the protection scope of the present invention is not limited to the following embodiments. The methods used in the following embodiments are all conventional methods unless otherwise specified.

[0029]

Embodiment

[0030] As shown in Figure 1 、 Figure 2As shown in the figure, in this embodiment, for the optimized furnace wall structure of the coke oven combustion chamber, convex portions 4 are added at the joints where the two ends of the furnace wall bricks 1 are in contact with the partition wall bricks 2. The convex portions 4 of the furnace wall bricks in the Nth layer and the (N + 1)th layer are flush with each other vertically without any offset, and a transition fillet is provided at the root of the convex portion 4.

[0031] In this embodiment, the distance A from the center line of the corresponding partition wall brick 2 to the convex portion 4 provided at both ends of the furnace wall brick 1 is 105 mm, the distance B from the outer side surface of the furnace wall brick 1 is 170 mm, the inclination angle C of the inclined surface is 112°, and the radius of the transition fillet at the root of the convex portion 4 is R6.

[0032] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, should be covered by the protection scope of the present invention.

Claims

1. An optimized coke oven combustion chamber wall structure, which is composed of two combustion chamber walls arranged in parallel and multiple vertical flue partition walls arranged between the two combustion chamber walls. The combustion chamber wall is built by multiple furnace wall bricks along the longitudinal direction of the combustion chamber; it is characterized in that, Both ends of the furnace wall bricks are respectively provided with convex parts on the side close to the vertical flue, and the convex parts extend towards the inner side of the vertical flue; the convex parts on the furnace wall bricks on both sides of the vertical flue partition wall of the same vertical flue wrap the corresponding ends of the vertical flue partition wall therein; Specifically, the body of the vertical flue partition wall is of a cuboid structure, one end thereof is a straight end, and the other end is a biting end, wherein convex tongues are respectively arranged on both sides of the biting end close to the end; multiple vertical flue partition walls are arranged at intervals along the longitudinal direction of the combustion chamber to form multiple vertical flues, and the arrangement directions of two adjacent vertical flue partition walls are opposite; wherein the end face of the biting end is flush with the outer side face of the furnace wall of the corresponding side combustion chamber, and the straight end is retracted inside the furnace wall of the other side combustion chamber; a groove is arranged at one end of the furnace wall brick, and the convex tongue on the vertical flue partition wall and the groove on the furnace wall brick jointly form a biting structure; the convex parts on the furnace wall bricks on both sides of the same vertical flue partition wall wrap the corresponding biting structure therein; The vertical flue partition wall is built by multiple layers of partition wall bricks along the height direction of the combustion chamber; on the same vertical plane, two adjacent layers of partition wall bricks are arranged one upright and one reverse; The furnace wall of the combustion chamber is built by multiple layers of furnace wall bricks along the height direction of the combustion chamber, and the convex parts of each layer of furnace wall bricks are kept flush.

2. An optimized coke oven combustion chamber furnace wall structure according to claim 1, characterized in that, The convex part on the furnace wall brick has a protruding plane parallel to the inner side face of the furnace wall brick, and the protruding plane is connected to the inner side face of the furnace wall brick through an inclined plane; the distance between the protruding plane of each furnace wall brick and the outer side face of the furnace wall brick is equal; the distance from the intersection point of the protruding plane and the inclined plane of each furnace wall brick to the center line of the nearest vertical flue partition wall is equal; the inclination angles of the inclined planes of each furnace wall brick are equal.

3. An optimized coke oven combustion chamber furnace wall structure according to claim 2, characterized in that, A transition fillet is arranged between the inclined plane of the convex part and the inner side face of the furnace wall brick.

Images