CN218842041U

CN218842041U - Coke oven combustion chamber with staggered heating horizontal structure

Info

Publication number: CN218842041U
Application number: CN202223417201.0U
Authority: CN
Inventors: 牛聪; 王笑非; 杨俊峰; 韩龙; 肖长志
Original assignee: Acre Coking and Refractory Engineering Consulting Corp MCC
Current assignee: Acre Coking and Refractory Engineering Consulting Corp MCC
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-04-11
Anticipated expiration: 2032-12-20

Abstract

The utility model relates to a coke oven combustion chamber with a staggered heating horizontal structure, which comprises a combustion chamber, wherein the combustion chamber consists of a plurality of double-vertical flame paths along the machine side-coke side direction, the tops of 2 vertical flame paths forming the double-vertical flame paths are communicated through a crossing hole, two sides of the combustion chamber are carbonization chambers, and the distance between the top of the carbonization chamber and the top of the vertical flame path is the heating level of a coke oven; along the machine side-coke side direction, the heating level of the coke oven is gradually increased. The utility model discloses according to the different operating characteristics of machine side and burnt side, set for the not equidistance with the heating level of machine side and burnt side, compromise the coke heating homogeneity and the maturity of machine side and burnt side, avoid appearing coke quality problems such as raw coke or coke overcooked.

Description

Coke oven combustion chamber with staggered heating horizontal structure

Technical Field

The utility model relates to a coke oven technical field especially relates to a coke oven combustion chamber with wrong difference formula adds hot water horizontal structure.

Background

The difference in distance between the roof of the coking chamber of the coke oven and the roof of the vertical flue of the coke oven is referred to as the heating level of the coke oven. The heating level of the coke oven at present has two modes, one is the heating level with equal difference heating (adjustable crossing holes), and the other is the heating level without equal difference heating, and the two modes respectively have advantages and disadvantages: 1) The temperature of the space on the top of the coke oven with the equal difference heating can be adjusted, and the temperature of the space on the top of the coke oven without the equal difference heating can not be adjusted; 2) The heating level without the equal difference heating is adopted, and the satisfactory furnace top space temperature can be obtained when the coal blending ratio changes small, because the shrinkage of the coke cake can be allowed to have 50mm deviation, which is about 1% of the shrinkage change; 3) Under the condition that the main sizes of the coke ovens are the same, the limit side load of the coke oven with the equal difference heating is about 5 percent smaller than that of the coke oven without the equal difference heating; 4) In the coke oven with equal-difference heating, the adjusting bricks at the positions of the crossing holes are difficult to adjust, and the expected effect is difficult to achieve.

The heating level is an important dimension in the structure of the coke oven body and also an important parameter in the design of the coke oven. The heating level is too small, the temperature of the top space of the carbonization chamber is too high, the quality and the yield of the coking product are not favorably improved, and the generation of furnace top graphite is increased; if the heating level is too high, the temperature of the space at the top of the furnace is too low, the temperature of the coke cake at the upper part can be reduced, the coke cake is uniformly matured from top to bottom, the coke is formed at the top of the furnace, and the quality of the coke is reduced.

In the prior coke oven design, the heating level is a fixed parameter and is determined according to the contractibility of coal materials, the temperature of a flame path and the combustion position. However, in the actual production process, the actual operation of the machine side and the coke side are different, taking a tamping coke oven as an example, the number of times of opening the oven door and the opening time of the oven door of the machine side are both greater than that of the coke side, so the temperature of the machine side is lower than that of the coke side. If the heating levels of the machine side and the coke side are consistent, coke formation easily occurs on the upper part of the machine side due to low temperature; if the maturity of coke cake on machine side is ensured, the temperature of coke side is easy to be higher, and the coke is over-cooked.

Disclosure of Invention

The utility model provides a coke oven combustion chamber with wrong difference formula adds hot water horizontal structure according to the different operating characteristics of machine side and burnt side, sets for the heating level of machine side and burnt side for the not equidistance, compromises the coke heating uniformity and the maturity of machine side and burnt side, avoids appearing coke quality problems such as green coke or coke overcooked.

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

a coke oven combustion chamber with a staggered heating horizontal structure comprises a combustion chamber, wherein the combustion chamber consists of a plurality of double-parallel vertical flame paths along the machine side-coke side direction, the tops of 2 vertical flame paths forming the double-parallel vertical flame paths are communicated through crossing holes, two sides of the combustion chamber are carbonization chambers, and the distance between the tops of the carbonization chambers and the tops of the vertical flame paths is the heating level of a coke oven; along the machine side-coke side direction, the heating level of the coke oven is gradually increased.

Furthermore, along the machine side-coke side direction, the heating levels of the coke oven form an arithmetic progression.

Further, along the machine side-coke side direction, the bottom surface of the top of the carbonization chamber is on the same horizontal plane, and the top surfaces of the vertical flame paths are sequentially lowered.

Further, the spanning holes are the same size.

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

1) According to different operating characteristics of the machine side and the coke side, the heating levels of the machine side and the coke side are set to different values, the heating uniformity and the maturity of the coke on the machine side and the coke side are considered, and the quality problems of raw coke, over-cooked coke and the like are avoided;

2) The heating level is gradually increased from the machine side to the coke side, and the stable transition is realized;

3) Compared with the conventional coke oven with equal difference heating, the times of adjusting through the adjusting bricks of the crossing holes are greatly reduced, the operation is simplified, and the effect is better.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic diagram of a staggered heating horizontal structure of a combustion chamber according to the present invention.

Fig. 2 is a schematic view of the heating level of the machine side combustion chamber of the present invention.

Fig. 3 is a schematic view of the coke side combustion chamber heating level of the present invention.

Description of the reference numerals:

in the figure: 1. charring chamber top 2, vertical flame path 3, charring chamber passing top brick 4, combustion chamber passing top brick 5, crossing hole

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, the coke oven combustion chamber with the staggered heating horizontal structure comprises a combustion chamber, wherein the combustion chamber consists of a plurality of double-joint vertical flame paths along the machine side-coke side direction, the tops of 2 vertical flame paths forming the double-joint vertical flame paths are communicated through a cross hole 5, the two sides of the combustion chamber are provided with a carbonization chamber, and the distance between the top 1 of the carbonization chamber and the top of the vertical flame paths is the heating level of a coke oven; along the machine side-coke side direction, the heating level of the coke oven is gradually increased.

Further, along the machine side-coke side direction, the bottom surface of the carbonization chamber top 1 is at the same horizontal plane, and the top surfaces of the vertical flame paths 2 are sequentially lowered.

Further, the spanning holes 5 are the same size.

A coke oven combustion chamber with wrong difference formula adds hot water horizontal structure on the basis of current coke oven combustion chamber structure, designs and improves according to the operation characteristics of machine side, burnt side, when setting up this parameter of heating level, sets up machine side and burnt side into different height value, adopts the structure that has wrong difference formula heating level promptly. As shown in figure 1, the bottom of the top 1 of the carbonization chamber is a carbonization chamber overhead brick 3, the top of the vertical flue 2 is a combustion chamber overhead brick 4, the size of a spanning hole 5 at the top of the duplex vertical flue is unchanged, the position is changed, namely, the height of a brick layer at the bottom of the spanning hole 5 at the machine side and the coke side is adjusted, the size of the spanning hole is ensured, and meanwhile, the stable transition of the machine side and the coke heating level is realized. After the heating horizontal structure with the staggered difference type is adopted, the heating temperature of the machine side and the coke side can be more uniform, the heating uniformity of coke cakes is effectively improved, and the thermal efficiency of a coke oven is improved.

For making the purpose, technical scheme and technical effect of the embodiment of the utility model clearer, it is now clear, completely described to the technical scheme in the embodiment of the utility model. The embodiments described below are only some embodiments of the present invention, and not all embodiments. In combination with the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without any creative work belong to the protection scope of the present invention.

[ examples ] A method for producing a compound

As shown in fig. 1-3, in the present embodiment, the combustion chamber is composed of 18 double vertical flues along the machine-coke side direction, the tops of 2 (1 pair) vertical flues composing the double vertical flues are communicated through the crossover hole, the two sides of the combustion chamber are carbonization chambers, and the distance between the tops of the carbonization chambers and the tops of the vertical flues is the heating level of the coke oven.

As shown in FIG. 1, in the embodiment, the heating level of the coke oven is increased from the machine side to the coke side, namely, the height of the spanning holes is gradually reduced; as shown in fig. 2 and 3, the heating level H of the vertical flue of the machine coke ₁ 630mm, coke side vertical flame path heating level H ₂ 800mm, the heating level of the coke oven is an array of equal differences of 10 mm.

According to the operation characteristics of the machine side and the coke side, the heating level of the coke oven on the machine side is reduced, the temperature of the space at the top of the oven from the machine side to the coke side is sequentially reduced, the heat balance between the machine side and the coke side can be adjusted, the heating temperature of the machine side and the coke side is more uniform, the heating uniformity of a coal cake in the length direction is improved, and the heat efficiency of the coke oven is improved.

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 coke oven combustion chamber with a staggered heating horizontal structure comprises a combustion chamber, wherein the combustion chamber consists of a plurality of double-linked vertical flame paths along the machine side-coke side direction, the tops of 2 vertical flame paths forming the double-linked vertical flame paths are communicated through a crossing hole, two sides of the combustion chamber are provided with carbonization chambers, and the distance between the tops of the carbonization chambers and the tops of the vertical flame paths is the heating level of a coke oven; it is characterized in that the heating level of the coke oven is gradually increased along the machine side-coke side direction.

2. The coke oven furnace chamber of claim 1 wherein the heating levels of the coke ovens are arranged in an arithmetic progression along the machine-to-coke side direction.

3. The coke oven furnace chamber of claim 1 or 2, wherein the bottom surface of the top of the coking chamber is at the same level and the top surface of the vertical flue is lowered in sequence in the machine-to-coke side direction.

4. The coke oven combustor of claim 1, wherein the crossover holes are the same size.