Horizontal heat recovery coke oven with separated carbonization chamber and combustion chamber

Abstract

The utility model relates to a horizontal heat recovery coke oven with a carbonization chamber and a combustion chamber separated, which belongs to the technical field of heat recovery coke ovens and particularly comprises the carbonization chamber arranged in the coke oven, a lower heating chamber arranged at the bottom of the carbonization chamber and a flue gas pipeline arranged on the coke oven. A carbonization chamber and a lower heating chamber are arranged on the two sides of the furnace wall respectively, an upper combustion chamber is arranged at the top of the carbonization chamber, a primary air inlet is formed in the upper combustion chamber, the upper combustion chamber and the lower heating chamber are communicated through a descending flame path, and the smoke pipeline is communicated with the lower heating chamber through an ascending flame path. According to the utility model, the carbonization chamber and the combustion chamber are separated, so that the carbonization chamber is very easily kept in an anaerobic state all the time, the carbonization process is further ensured to be smoothly carried out, and the quality of coke is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a horizontal heat recovery coke oven with separate carbonization chamber and combustion chamber and belongs to the technical field of heat recovery coke oven. BACKGROUND

[0002] The heat recovery coke oven is a coke production device with coke oven carbonization chamber micro-negative pressure operation, mechanized ramming, coal loading, coke discharging and recycling and utilization of coking combustion waste gas heat. The heat recovery coke oven is usually composed of furnace bottom, multiple fireways, main wall, carbonization chamber and furnace top. The coking process of the heat recovery coke oven is divided into direct heating and indirect heating. After the coal material is pyrolyzed in the carbonization chamber, combustible gas (high-temperature rich gas) is generated. Part of the combustible gas is mixed with air entering from the top of the carbonization chamber and combusted to directly heat the coal material. The remaining combustible gas that is not fully combusted enters the descending channel inside the main wall through the holes in the upper part of the main wall, flows from top to bottom, and then flows out of the descending channel through the holes in the lower part of the main wall and into the multiple fireways below the carbonization chamber. In the multiple fireways, the combustible gas is mixed with air entering from the seal wall and fully combusted. The heat is transferred to the coal material through the bottom of the carbonization chamber. The waste gas after combustion enters the ascending channel inside the main wall through the holes in the lower part of the main wall, and finally flows out of the heat recovery coke oven body, enters the flue gas pipeline through the ascending pipe at the top. In this process, the combustible gas is mainly combusted in the carbonization chamber. The combustion chamber and the carbonization chamber share a chamber, which realizes upper heating and then transmits the mixed gas that is not fully combusted to the lower combustion chamber through the descending fireway for combustion heating. This results in difficulty in controlling the temperature of the carbonization chamber, which affects the quality of the coke and the production efficiency. SUMMARY

[0003] To solve the technical problems existing in the prior art, the utility model provides a horizontal heat recovery coke oven with separate carbonization chamber and combustion chamber. The carbonization chamber is separated from the combustion chamber, which makes it very easy to ensure that the carbonization chamber is always in an anaerobic state, thereby ensuring the smooth progress of the carbonization process and improving the quality of the coke.

[0004] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of a horizontal heat recovery coke oven with separate carbonization chamber and combustion chamber, which comprises a carbonization chamber arranged in the coke oven and a lower heating chamber arranged at the bottom of the carbonization chamber, and a flue gas pipeline installed on the coke oven. The middle part of the coke oven is provided with a furnace wall. The two sides of the furnace wall are respectively provided with the carbonization chamber and the lower heating chamber. The top of the carbonization chamber is provided with an upper combustion chamber. An air inlet is arranged on the upper combustion chamber. The upper combustion chamber and the lower heating chamber are connected and communicated through a descending fireway. The flue gas pipeline is connected and communicated with the lower heating chamber through an ascending fireway.

[0005] Preferably, the top of the carbonization chamber is provided with a flue gas discharge hole connected with the upper combustion chamber.

[0006] Preferably, the ascending flue is arranged in the furnace wall, and the descending flue is arranged in the side furnace wall of the coke oven.

[0007] Preferably, the flue gas pipe is an upper flue gas pipe arranged on the top of the coke oven or a lower flue gas pipe arranged on the bottom of the coke oven.

[0008] Compared with the prior art, the utility model has the following technical effects: the carbonization chamber and the combustion chamber are separated, so that the carbonization chamber can be kept in an anaerobic state at all times, and the carbonization chamber is always kept in a heating mode mainly by conduction heat, which is more conducive to keeping the temperature requirement of coke smelting; and the temperature control of the upper combustion chamber and the lower heating chamber is more conducive to keeping the heating consistency, thereby improving the quality and production efficiency of coke. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is a structural schematic view of the utility model.

[0010] Figure 2 It is a side view of the utility model. DETAILED DESCRIPTION

[0011] In order to make the technical problems, technical schemes and beneficial effects of the utility model clearer, the utility model is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and are not used to limit the utility model.

[0012] As shown in Figure 1 and Figure 2 The horizontal heat recovery coke oven with the separated carbonization chamber and combustion chamber comprises a carbonization chamber 2 arranged in a coke oven 1, a lower heating chamber 3 arranged at the bottom of the carbonization chamber 2, and a flue gas pipe 4 arranged on the coke oven, a furnace wall 5 arranged in the middle of the coke oven 1, the carbonization chamber 2 and the lower heating chamber 3 arranged on the two sides of the furnace wall 5, an upper combustion chamber 6 arranged at the top of the carbonization chamber 2, a primary air inlet arranged on the upper combustion chamber 6, the upper combustion chamber 6 and the lower heating chamber 3 communicated through a descending flue 8, and the flue gas pipe 4 communicated with the lower heating chamber 3 through an ascending flue 7. The ascending flue 7 is arranged in the furnace wall, and the descending flue 8 is arranged in the side furnace wall of the coke oven.

[0013] The utility model discloses a carbonization chamber and combustion chamber are separated, and the carbonization chamber is very easy to guarantee that carbonization chamber is always in anaerobic state, and the carbonization chamber always keeps the conduction heat as the main heating mode, and it is more favorable to keep the temperature requirement of coke smelting, and the temperature control of upper combustion chamber and lower heating chamber is more easy to guarantee heating consistency, and then improve coke quality and production efficiency.

[0014] Wherein, the top of carbonization chamber 2 is provided with flue gas exhaust hole communicated with upper combustion chamber, and the volatile matter of carbonization chamber 2 is formed into mixed hot gas by the oxygen-containing air inhaled through the flue gas exhaust hole in the upper portion of carbonization chamber 2 and the primary air inlet of upper combustion chamber 6, and the mixed hot gas is combusted and heated in upper combustion chamber 6 and lower heating chamber 3.

[0015] In addition, the flue gas pipeline 4 is an upper flue gas pipeline installed on the top of coke oven or a lower flue gas pipeline installed on the bottom of coke oven.

[0016] The above only is the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement and improvement etc. in the spirit and principle of the utility model should be included in the range of the utility model.

Claims

1. A horizontal heat recovery coke oven with a separate carbonization chamber and a combustion chamber, comprising a carbonization chamber disposed within the coke oven, a lower heating chamber disposed at the bottom of the carbonization chamber, and flue gas ducts installed on the coke oven, characterized in that: The coke oven has a furnace wall in the middle, and a carbonization chamber and a lower heating chamber are respectively arranged on both sides of the furnace wall. An upper combustion chamber is arranged on the top of the carbonization chamber. A primary air inlet is arranged on the upper combustion chamber. The upper combustion chamber and the lower heating chamber are connected by a descending fire channel. The flue gas duct is connected to the lower heating chamber through an ascending fire channel.

2. The horizontal heat recovery coke oven with separate carbonization chamber and combustion chamber according to claim 1, characterized in that: The top of the carbonization chamber is provided with a flue gas discharge port that communicates with the upper combustion chamber.

3. The horizontal heat recovery coke oven with separate carbonization chamber and combustion chamber according to claim 1, characterized in that: The rising flue is located inside the furnace wall, and the descending flue is located inside the coke oven side furnace wall.

4. The horizontal heat recovery coke oven with separate carbonization chamber and combustion chamber according to claim 1, characterized in that: The flue gas duct is either an upper flue gas duct installed at the top of the coke oven or a lower flue gas duct installed at the bottom of the coke oven.

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