CN217600645U

CN217600645U - Stable heat recovery coke oven vault structure of easily constructing

Info

Publication number: CN217600645U
Application number: CN202221213480.6U
Authority: CN
Inventors: 耿宁; 郑彭; 牛聪; 赵殿辉; 李鑫
Original assignee: Acre Coking and Refractory Engineering Consulting Corp MCC
Current assignee: Acre Coking and Refractory Engineering Consulting Corp MCC
Priority date: 2022-05-20
Filing date: 2022-05-20
Publication date: 2022-10-18
Anticipated expiration: 2032-05-20

Abstract

The utility model relates to a heat recovery coke oven technical field especially relates to a stabilize heat recovery coke oven vault structure of easy construction. The main wall and the vault are built by main wall leather bricks, arch foot bricks, roof spanning bricks, arch roof bricks and positioning bricks; the main wall and vault combining position set up double-deck concave-convex cooperation locking structure, and main wall skin brick passes through concave-convex structure interlock locking with striding the crown brick, and the location brick between two hunch foot bricks passes through concave-convex structure interlock locking with striding the crown brick. Greatly increased the stability of furnace roof structure, and the locating brick makes the hunch foot brick fixed by the main wall in the horizontal direction, when building single carbomorphism room hunch crown brick, the position of hunch foot brick can not take place to slide and skew yet, and convenient construction has saved a large amount of manpower and materials.

Description

Stable heat recovery coke oven vault structure of easily constructing

Technical Field

The utility model relates to a heat recovery coke oven technical field especially relates to a stabilize heat recovery coke oven vault structure of easy construction.

Background

The current heat recovery coke oven is generally composed of a furnace bottom, a multi-connected flame path, a main wall, a carbonization chamber and a furnace top. The coking process of the heat recovery coke oven comprises direct heating and indirect heating, coal materials are pyrolyzed in a coking chamber to generate combustible gas, part of the combustible gas is mixed with air entering from the top of the coking chamber and then is combusted, the coal materials are directly heated, and the residual combustible gas which is not fully combusted enters a descending channel in a main wall through holes in the upper part of the main wall, flows from top to bottom, flows out of the descending channel through holes in the lower part of the main wall and flows into a multi-connected flame path in the lower part of the coal materials. In the multi-connected flame path, combustible gas and air entering from the sealing wall are mixed and then fully combusted, heat is transferred to coal materials through the bottom of the carbonization chamber, combusted waste gas enters an ascending channel in the main wall through a hole in the lower part of the main wall, and finally flows out of the heat recovery coke oven body and enters a flue gas pipeline through an ascending pipe in the top of the coke oven.

The top of the carbonization chamber is of a large-span arch structure, the arch foot bricks are positioned on the upper part of the main wall, and the gravity of the arch head bricks and the refractory materials on the upper part of the arch crown is converted into horizontal lateral thrust and vertical downward pressure at the arch foot bricks. When the vault of the heat recovery coke oven with one hole is built, if arch foot bricks slide and shift unstably, arch foot bricks collapse, and the elevation of the vault is difficult to control, so that the traditional heat recovery coke oven building method is that arch foot bricks are built in all carbonization chambers of a group of coke ovens simultaneously, so that the gravity components (horizontal lateral thrust) borne by the arch foot bricks of the adjacent carbonization chambers can be mutually offset, the stability of the arch foot bricks is ensured, but a group of coke ovens usually consists of 10-20 carbonization chambers, a large amount of manpower and material resources are consumed in construction, the control difficulty is increased, and the quality and safety control in the construction process are not facilitated.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a stable and easy-to-construct heat recovery coke oven vault structure, which increases the stability of the main wall and the oven top, and is convenient for construction and saves a large amount of manpower and material resources when the vault of the carbonization chamber is built.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a stable and easily constructed heat recovery coke oven vault structure comprises a main wall and a vault, wherein the main wall and the vault are built by main wall leather bricks, arch foot bricks, roof spanning bricks, arch roof bricks and positioning bricks; the main wall and vault combining position set up double-deck concave-convex cooperation locking structure, and main wall skin brick passes through concave-convex structure interlock locking with striding the crown brick, and the location brick between two hunch foot bricks passes through concave-convex structure interlock locking with striding the crown brick.

The upper layer and the lower layer of the main wall skin brick are occluded through the groove tongue.

The main wall upper portion wall leather brick is the overhanging type structure.

And a groove tongue is arranged between the positioning brick and the top-crossing brick.

The vault is built by wedge vault bricks with a big top and a small bottom, and the side surfaces between the vault bricks are matched by a ditch tongue.

Compared with the prior art, the beneficial effects of the utility model are that:

1) The utility model discloses main wall leather brick and stride the crown block and pass through concave-convex structure interlock locking, the positioning brick between the arch foot brick with stride the crown block and pass through concave-convex structure interlock locking once more, greatly increased furnace roof structure's stability, and the positioning brick makes the arch foot brick fixed by the main wall at the horizontal direction, when building single carbomorphism room arch crown block by laying bricks or stones, the position of arch foot brick can not take place to slide and squint yet, convenient construction has saved a large amount of manpower and materials.

2) The utility model discloses through the interlock of ditch tongue between the upper and lower floor of main wall skin brick, be favorable to the overall stability of main wall.

3) The utility model discloses main wall upper portion wall leather brick is the formula structure of encorbelmenting, plays fine supporting role to the hunch foot brick, is favorable to the overall stability of vault.

4) The utility model discloses the location brick with stride between the roof brick, through the mode of addding the ditch tongue between the brick layer, increase the stability of main wall and vault structure.

5) The utility model discloses the vault adopts wedge vault brick big-end-up to build by laying bricks or stones and forms, and the side between the vault brick adds establishes the cooperation of ditch tongue, increases the stability of vault.

Drawings

FIG. 1 is a schematic cross-sectional view of the structure of a main wall and a vault of a prior art heat recovery coke oven;

FIG. 2 is a schematic cross-sectional view of the structure of the main wall and the vault of the heat recovery coke oven of the present invention;

fig. 3 is a partially enlarged view of fig. 2.

In the figure: 1-main wall skin brick 2-arch springing brick 3-span top brick 4-arch top brick 5-positioning brick

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:

as shown in figure 1, in the main wall and the vault of the existing heat recovery coke oven, no interlayer matching structure exists between the brick skin on the upper part of the main wall and the roof-spanning brick, and between the roof-spanning brick and the arch foot brick, so that the sliding and the deviation are easy to occur, the brick joint of the arch roof brick is not uniform, the vault sinks, the elevation is not easy to control, and the construction quality can not be ensured.

As shown in fig. 2 and 3, the main wall leather bricks 1 and the roof-spanning bricks 3 are locked by the concave-convex structure in an engaged manner, the positioning bricks 5 between the arch foot bricks 2 and the roof-spanning bricks 3 are locked by the concave-convex structure in an engaged manner again, the stability of the furnace roof structure is greatly improved, the positioning bricks 5 enable the arch foot bricks 2 to be fixed by the main wall in the horizontal direction, and when the single carbonization chamber arch top brick 4 is built, the position of the arch foot bricks 2 cannot slide or shift.

The upper layer and the lower layer of the main wall skin brick 1 are occluded by the grooves and the tongues, which is favorable for the integral stability of the main wall.

The main wall leather bricks 1 on the upper part of the main wall are of an overhanging type structure, play a good supporting role for the arch foot bricks 2 and are beneficial to the overall stability of the arch crown.

Between the positioning brick 5 and the roof-spanning brick 3, the stability of the main wall and the vault structure can be improved by additionally arranging a groove tongue between brick layers.

The vault is built by arch top bricks 4 with large top and small bottom, and the side surfaces between the arch top bricks 4 can be additionally provided with ditch tongues for matching, so that the stability of the vault is improved. The structure is convenient to construct, and a large amount of manpower and material resources are saved.

The utility model discloses increased the stability of main wall and furnace roof, when building by laying bricks or stones the carbomorphism room vault, convenient construction has saved a large amount of manpower and materials.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A stable and easily constructed heat recovery coke oven vault structure comprises a main wall and a vault, wherein the main wall and the vault are built by main wall leather bricks, arch foot bricks, roof spanning bricks, arch roof bricks and positioning bricks; the method is characterized in that: the main wall and vault combining position set up double-deck concave-convex cooperation locking structure, and main wall skin brick passes through concave-convex structure interlock locking with striding the crown brick, and the location brick between two hunch foot bricks passes through concave-convex structure interlock locking with striding the crown brick.

2. The stable, easily constructed heat recovery coke oven vault structure of claim 1 wherein: the upper layer and the lower layer of the main wall skin brick are meshed through the grooves and the tongues.

3. The stable, easily constructed heat recovery coke oven vault structure of claim 1, wherein: the main wall upper portion wall leather brick is the overhanging type structure.

4. The stable, easily constructed heat recovery coke oven vault structure of claim 1, wherein: and a groove tongue is arranged between the positioning brick and the top spanning brick.

5. The stable, easily constructed heat recovery coke oven vault structure of claim 1 wherein: the vault is built by wedge vault bricks with a big top and a small bottom, and the side surfaces between the vault bricks are matched by a ditch tongue.