A coke oven heat storage chamber structure

Abstract

The present invention relates to a coke oven regenerator structure, comprising a plurality of regenerators divided by a regenerator main wall and a regenerator single wall, and lattice bricks arranged in the regenerators; the regenerator main wall and the regenerator single wall are provided with a plurality of toothed hanging grooves along the height direction, and adjacent lattice bricks are provided with matching toothed hooks, and the lattice bricks are hung in the regenerator as a whole under the cooperation of the toothed hooks and the toothed hanging grooves. The present invention allows the lattice bricks to be hung in the regenerator as a whole by correspondingly providing and cooperating toothed hanging grooves and toothed hooks on the regenerator main wall, the regenerator single wall and the lattice bricks, and can move with the expansion and movement of the regenerator main wall and the regenerator single wall, and conveniently realize the lattice and zoning effects of the regenerator.

Description

Technical Field

[0001] The invention relates to the technical field of coke ovens, and in particular to a coke oven heat storage chamber structure. Background Art

[0002] The function of the coke oven regenerator is to recover the waste heat of high-temperature exhaust gas and preheat the air or gas used for combustion. The regenerator is located at the bottom of the coke oven body. Almost all modern coke ovens use horizontal regenerators, which are arranged in parallel with the carbonization chamber and the combustion chamber. A central partition wall is generally arranged inside the horizontal regenerator to divide each regenerator into two parts: the machine side and the coke side. The main wall of the regenerator is also the load-bearing wall at the bottom of the coke oven. The function of the single wall of the regenerator is to divide a large regenerator into two narrow regenerators, which are used to preheat air and gas respectively. The single wall of the regenerator does not require load-bearing. The bottom of the regenerator is a small flue. The top of the small flue is equipped with grate bricks to support the lattice bricks in the regenerator, and the airflow is evenly distributed along the length of the regenerator through the distribution holes on the grate bricks. As a heat storage body, the lattice bricks are usually placed directly on the grate bricks at the top of the small flue.

[0003] With the continuous development of modern coke oven thermal control technology and low-nitrogen combustion technology, the regenerator structure at the bottom of the coke oven has become more and more complex. The current coke oven regenerator must not only be designed with grids to meet the needs of horizontal control of the vertical fire channel, but also be divided longitudinally to meet the requirements of multi-stage heating of the vertical fire channel. The existing regenerator structure can no longer meet the above functional requirements. In addition, the grid regenerator structure also greatly increases the construction difficulty of the checker brick masonry process. Summary of the invention

[0004] The present invention provides a coke oven regenerator structure, wherein toothed hanging grooves and toothed hooks are correspondingly arranged and matched with each other on the regenerator main wall, the regenerator single wall and the lattice bricks, so that the lattice bricks are hung in the regenerator as a whole, and can move with the expansion and movement of the regenerator main wall and the regenerator single wall, and at the same time, the lattice and partition effects of the regenerator are conveniently achieved.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A coke oven regenerator structure comprises a plurality of regenerators divided by a regenerator main wall and a regenerator single wall, and checker bricks arranged in the regenerators; the regenerator main wall and the regenerator single wall are provided with a plurality of toothed hanging grooves along the height direction, and adjacent checker bricks are provided with matching toothed hooks, and the checker bricks are hung as a whole in the regenerator under the cooperation of the toothed hooks and the toothed hanging grooves.

[0007] The bottom surface of the toothed hanging groove is semi-cylindrical, and the top thereof is inclined toward the inner side of the main wall of the heat storage chamber or the single wall of the heat storage chamber. The toothed hook has a shape and angle matching the toothed hanging groove.

[0008] The main wall of the heat storage chamber or the single wall of the heat storage chamber is provided with at least one horizontal sliding layer along the height direction, and the checker bricks above each horizontal sliding layer are respectively suspended between the main wall of the heat storage chamber and the single wall of the heat storage chamber at the corresponding layer.

[0009] The materials of the main walls of each layer of heat storage chamber or the single walls of each layer of heat storage chamber are different.

[0010] The space between the tooth-shaped hanging groove and the tooth-shaped hook is filled with foamed polystyrene.

[0011] The lattice brick has a lattice brick body with a rectangular structure, and two rows of transparent lattice holes are arranged on the lattice brick body; the top surface of the lattice brick is provided with 9 positioning grooves arranged in a matrix of 3 rows × 3 columns, and the bottom surface of the lattice brick is correspondingly provided with 9 positioning columns, and the positioning grooves and positioning columns are respectively arranged on the lattice brick body outside the transparent lattice holes or between the two rows of transparent lattice holes.

[0012] Among the 9 positioning grooves arranged in a matrix of 3 rows × 3 columns, the positioning groove located in the center of the checker brick has a complete inner surface shape, the positioning grooves located in the middle of both sides or the middle of four sides of the checker brick have a 1 / 2 inner surface shape, and the positioning grooves located in the four corners of the checker brick have a 1 / 4 inner surface shape; the bottom surfaces of the positioning columns at corresponding positions have matching shapes respectively.

[0013] The heat storage chamber has a grid structure along the height direction, and the small partition walls of the heat storage chamber used for the grid are engaged with the checker bricks through the groove and tongue structure arranged in cooperation, or the small partition walls of the heat storage chamber are directly formed by the extension structure arranged on the checker bricks.

[0014] The heat storage chamber is provided with a partition wall along the longitudinal direction, and the partition wall has a surface shape matching with the adjacent checker bricks.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1) Changed the conventional arrangement of checker bricks in the heat storage chamber; in the existing design, the checker bricks are directly placed on the grate bricks, because the grate bricks are made of clay and the temperature in the area is low, so the expansion is small; and the checker bricks are located on the grate bricks and cannot move with the expansion of the main wall of the heat storage chamber and the single wall of the heat storage chamber (the main wall of the heat storage chamber and the single wall of the heat storage chamber are generally made of silica bricks). The present invention changes the conventional arrangement of checker bricks, and the checker bricks are hung as a whole between the main wall of the heat storage chamber and the single wall of the heat storage chamber through the toothed hanging groove and the toothed hook. The checker bricks can move with the expansion of the main wall of the heat storage chamber and the single wall of the heat storage chamber, thereby avoiding the phenomenon that the checker bricks are broken due to the expansion and movement of the main wall of the heat storage chamber and the single wall of the heat storage chamber.

[0017] 2) Checker bricks not only serve as heat storage bodies, but also have partitioning functions. In existing designs, checker bricks are only used as heat storage bodies. Although checker bricks themselves have certain strength, only their stacking and heat storage functions are considered during design. In the present invention, checker bricks are also used as components of the partition structure of the heat storage chamber. They are connected to the main wall of the heat storage chamber and the single wall of the heat storage chamber through interlocking to form a masonry effect, and they also have the function of constructing the horizontal or vertical partition of the heat storage chamber, which is more in line with the development trend of multi-area partitioning and management of the heat storage chamber in the future coke oven design concept.

[0018] 3) Different materials are applied to different areas of the heat storage chamber; as the height of the heat storage chamber increases, the main wall and single wall structure of the heat storage chamber in different height and temperature areas are set to different materials to meet the use requirements. In the present invention, after the checker bricks are suspended, when the heat storage chamber slides in the horizontal direction, the checker bricks can move with the main wall and single wall of the heat storage chamber of the corresponding layer to achieve relative sliding between the layers, thereby avoiding the tilting and collapse of the checker bricks due to stacking from bottom to top, and also avoiding the airflow blockage caused by the disordered stacking of the checker bricks.

[0019] 4) The problem of chaotic construction sequence and narrow construction space caused by the division of the heat storage chamber in the height and longitudinal directions is solved. The traditional heat storage chamber structure cannot be made too thick and heavy due to the limitation of the center distance between the main wall of the heat storage chamber and the single wall of the heat storage chamber. In addition, the checker bricks in the heat storage chamber need to be stacked synchronously with the masonry process, resulting in narrow construction space and no stepping foundation during construction (the main wall of the heat storage chamber and the single wall of the heat storage chamber are not allowed to be stepped on during construction). In the present invention, the checker bricks can directly form a small partition wall of the heat storage chamber through a special structure, which can avoid defects such as low strength of the partition wall; at the same time, the integrity of the partition wall structure is stronger, making the layout of the heat storage chamber more relaxed and the construction space more ample. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a coke oven regenerator structure according to the present invention.

[0021] Figure 2 yes Figure 1 AA view in.

[0022] Figure 3 yes Figure 1 Enlarged view of part B in .

[0023] Figure 4 It is a structural schematic diagram of a partition wall provided in the heat storage chamber of the present invention.

[0024] Figure 5 yes Figure 4 The CC view in .

[0025] Figure 6a It is a front view of the checker brick of the present invention.

[0026] Figure 6b yes Figure 6a Front view of.

[0027] Figure 6c yes Figure 6a Side view of.

[0028] Figure 6d It is a schematic diagram of the combination arrangement of the checker bricks of the present invention.

[0029] In the figure: 1. Main wall of heat storage chamber 2. Single wall of heat storage chamber 3. Small flue 4. Grate brick 5. Checker brick 51. Checker brick body 52. ​​Transparent grid hole 53. Positioning groove 531. Positioning groove located at the center of the checker brick 532. Positioning groove located at the middle of both sides or the middle of four sides of the checker brick 533. Positioning groove located at the four corners of the checker brick 54. Positioning column 6. Horizontal sliding layer 7. Toothed hanging groove 8. Toothed hook 9. Small partition wall of heat storage chamber 10. Foamed polystyrene 11. Partition wall DETAILED DESCRIPTION

[0030] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings:

[0031] like Figure 1-Figure 3 As shown, a coke oven regenerator structure of the present invention comprises a plurality of regenerators divided by a regenerator main wall 1 and a regenerator single wall 2, and checker bricks 5 arranged in the regenerators; the regenerator main wall 1 and the regenerator single wall 2 are provided with a plurality of toothed hanging grooves 7 along the height direction, and adjacent checker bricks 5 are provided with matching toothed hooks 8, and the checker bricks 5 are hung as a whole in the regenerator under the cooperation of the toothed hooks 8 and the toothed hanging grooves 7.

[0032] The bottom surface of the toothed hanging groove 7 is semi-cylindrical, and the top thereof is inclined toward the inner side of the main wall 1 of the heat storage chamber or the single wall 2 of the heat storage chamber. The toothed hook 8 has a shape and angle that matches the toothed hanging groove 7.

[0033] The heat storage chamber main wall 1 or the heat storage chamber single wall 2 is provided with at least one horizontal sliding layer 6 along the height direction, and the checker bricks 5 above each horizontal sliding layer 6 are respectively suspended between the heat storage chamber main wall 1 and the heat storage chamber single wall 2 of the corresponding layer.

[0034] The materials of the main walls 1 of each layer of heat storage chamber or the single walls 2 of each layer of heat storage chamber are different.

[0035] like Figure 3 As shown, the space between the toothed hanging groove 7 and the toothed hook 8 is filled with foamed polystyrene 10 .

[0036] like Figure 6a-6dAs shown, the checker brick 5 has a checker brick body 51 of a rectangular structure, and two rows of transparent grid holes 52 are provided on the checker brick body; the top surface of the checker brick 5 is provided with 9 positioning grooves 53 arranged in a matrix of 3 rows × 3 columns, and the bottom surface of the checker brick 5 is correspondingly provided with 9 positioning columns 54, and the positioning grooves 53 and the positioning columns 54 are respectively arranged on the checker brick body 51 outside the transparent grid holes 52 or between the two rows of transparent grid holes 52.

[0037] Among the 9 positioning grooves 53 arranged in a matrix of 3 rows × 3 columns, the positioning groove 531 located at the center of the checker brick 5 has a complete inner surface shape, the positioning grooves 532 located at the middle of both sides or the middle of four sides of the checker brick 5 have a 1 / 2 inner surface shape, and the positioning grooves 533 located at the four corners of the checker brick 5 have a 1 / 4 inner surface shape; the bottom surfaces of the positioning columns 54 at corresponding positions have matching shapes respectively.

[0038] like Figure 2 As shown, the heat storage chamber has a grid structure along the height direction, and the small partition walls 9 of the heat storage chamber used for the grid are engaged with the checker bricks 5 through a matching groove and tongue structure, or the small partition walls 9 of the heat storage chamber are directly formed by the extension structure arranged on the checker bricks 5.

[0039] like Figure 4 , Figure 5 As shown, the heat storage chamber is provided with a partition wall 11 along the longitudinal direction, and the partition wall 11 has a surface shape matching with the adjacent checker bricks 5.

[0040] In a coke oven regenerator structure described in the present invention, toothed hanging grooves 7 are respectively provided on the regenerator main wall 1 and the regenerator single wall 2, and cooperate with toothed hooks 8 provided on the lattice bricks 5 at corresponding positions, so that the lattice bricks 5 can be hung between the regenerator main wall 1 and the regenerator single wall 2, and the toothed hanging grooves 7 play a positioning role for the toothed hooks 8, and at the same time, the toothed hooks 8 can slide longitudinally along the toothed hanging grooves 7 to absorb the extrusion force caused by expansion; foamed styrene 10 is laid between the toothed hanging grooves 7 and the toothed hooks 8, which can effectively fix and absorb expansion.

[0041] One or more horizontal sliding layers 6 are arranged in the height direction of the heat storage chamber. In the heat storage chamber spaces of each layer separated by the horizontal sliding layer 6, checker bricks 5 are respectively hung on the heat storage chamber main wall 1 and the heat storage chamber single wall 2 of the corresponding layer, so that the checker bricks 5 can move with the thermal expansion of the heat storage chamber main wall 1 and the heat storage chamber single wall 2.

[0042] The heat storage chamber can be set as a grid structure, and the corresponding positions of the checker bricks 5 on the small partition wall 9 of the heat storage chamber for the grid can be provided with a matching square or trapezoidal groove tongue to form a bite structure. Through the bite connection with the checker bricks 5, a partition structure along the height of the heat storage chamber can also be formed, which not only expands the function of the checker bricks 5, but also overcomes the disadvantage of low strength of the partition wall structure due to narrow space. In the same way, the checker bricks 5 can also be used to realize the grid structure of the heat storage chamber along the length.

[0043] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A coke oven regenerator structure, comprising a plurality of regenerators divided by a regenerator main wall and a regenerator single wall, and checker bricks arranged in the regenerators; characterized in that: The main wall of the heat storage chamber and the single wall of the heat storage chamber are provided with a plurality of toothed hanging grooves along the height direction, and the adjacent checkered bricks are provided with matching toothed hooks. Under the cooperation of the toothed hooks and the toothed hanging grooves, the checkered bricks are hung as a whole in the heat storage chamber.

2. A coke oven regenerator structure according to claim 1, characterized in that: The bottom surface of the toothed hanging groove is semi-cylindrical, and the top thereof is inclined toward the inner side of the main wall of the heat storage chamber or the single wall of the heat storage chamber. The toothed hook has a shape and angle matching the toothed hanging groove.

3. A coke oven regenerator structure according to claim 1 or 2, characterized in that: The main wall of the heat storage chamber or the single wall of the heat storage chamber is provided with at least one horizontal sliding layer along the height direction, and the checker bricks above each horizontal sliding layer are respectively suspended between the main wall of the heat storage chamber and the single wall of the heat storage chamber at the corresponding layer.

4. A coke oven regenerator structure according to claim 3, characterized in that: The materials of the main walls of each layer of heat storage chamber or the single walls of each layer of heat storage chamber are different.

5. A coke oven regenerator structure according to claim 1 or 2, characterized in that: The space between the tooth-shaped hanging groove and the tooth-shaped hook is filled with foamed polystyrene.

6. A coke oven regenerator structure according to claim 1, characterized in that: The lattice brick has a lattice brick body with a rectangular structure, and two rows of transparent lattice holes are arranged on the lattice brick body; the top surface of the lattice brick is provided with 9 positioning grooves arranged in a matrix of 3 rows × 3 columns, and the bottom surface of the lattice brick is correspondingly provided with 9 positioning columns, and the positioning grooves and positioning columns are respectively arranged on the lattice brick body outside the transparent lattice holes or between the two rows of transparent lattice holes.

7. A coke oven regenerator structure according to claim 6, characterized in that: Among the 9 positioning grooves arranged in a matrix of 3 rows × 3 columns, the positioning groove located in the center of the checker brick has a complete inner surface shape, the positioning grooves located in the middle of both sides or the middle of four sides of the checker brick have a 1 / 2 inner surface shape, and the positioning grooves located in the four corners of the checker brick have a 1 / 4 inner surface shape; the bottom surfaces of the positioning columns at corresponding positions have matching shapes respectively.

8. A coke oven regenerator structure according to claim 1, wherein the regenerator has a grid structure along the height direction; characterized in that: The small partition wall of the heat storage chamber used for partitioning is engaged with the checker bricks through a groove and tongue structure arranged in cooperation, or the small partition wall of the heat storage chamber is directly formed by an extension structure arranged on the checker bricks.

9. A coke oven regenerator structure according to claim 1, characterized in that: The heat storage chamber is provided with a partition wall along the longitudinal direction, and the partition wall has a surface shape matching with the adjacent checker bricks.

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