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Air guide brick and air guide wall thereof as well as pulverized coal destructive distillation carbonization chamber applying brick and wall

A technology of gas-conducting bricks and gas bricks, which is applied in the direction of special carbonization, indirect heating carbonization, carbonization gas discharge device, etc., which can solve the problems of long journey of pyrolysis gaseous products, long residence time of gaseous products, low yield of liquid products, etc. problem, to achieve the effect of reducing residence time, easy promotion and low cost

Inactive Publication Date: 2013-10-30
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is that the pyrolysis gaseous products produced in the existing pulverized coal carbonization and carbonization chamber have a long journey and large export resistance, resulting in a long residence time of the gaseous products in the carbonization chamber, resulting in secondary cracking of the gaseous products. To solve the problem of low yield of liquid products, and then provide a gas-conducting brick and its gas-conducting wall and a pulverized coal dry distillation carbonization chamber using the brick wall

Method used

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  • Air guide brick and air guide wall thereof as well as pulverized coal destructive distillation carbonization chamber applying brick and wall
  • Air guide brick and air guide wall thereof as well as pulverized coal destructive distillation carbonization chamber applying brick and wall
  • Air guide brick and air guide wall thereof as well as pulverized coal destructive distillation carbonization chamber applying brick and wall

Examples

Experimental program
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Effect test

Embodiment 1

[0025] as attached figure 1 , figure 2 , image 3 and Figure 4 As mentioned above, the gas-conducting brick 13 provided by the present invention is to open the gas-absorbing brick 1 and the exhaust brick 5 with a gas channel structure in the gas-conducting brick 13, and its structural shape is a rectangular parallelepiped or a cube. In the present invention, the thermal conductivity of the designed air-conducting brick 13 is at least less than 4.78 W / (m·℃), and its material is mainly composed of silicon oxide, such as silica brick and clay brick. The brick 13 weakens the heat transfer from the outside to the inside of the air-conducting brick 13, that is, there is a large temperature difference between the inside and outside of the wall, which avoids secondary cracking of part of the gas in the wall.

[0026] The air-absorbing brick 1 designed by the present invention is provided with a gas passage of a "human" structure 3 inside, and the gas passage of the "human" struct...

Embodiment 2

[0030] On the basis of Example 1, implement a kind of air-conducting wall 12 using air-conducting bricks according to the present invention, as attached Figure 5 and Figure 6 Said, including gas-receiving brick 1, exhaust brick 5 and standard brick 14. The present invention adopts the air-conducting wall 12 stacked with the air-receiving brick 1 and the exhaust brick 5 of the "human" structure as basic structural units, and adopts the third combination scheme in Embodiment 1. Wherein, the method of stacking the wall includes horizontal masonry and vertical masonry, and both the horizontal masonry and the vertical masonry are implemented sequentially or crosswise.

[0031] as attached Figure 5 As mentioned above, in the masonry method of the air guide wall 12 (1) designed in the present invention, the "human" type air receiving brick 1 and the exhaust brick 5 used have the same height and width, but different lengths. slightly longer. When laying horizontally, the "human...

Embodiment 3

[0035] as attached Figure 5 And attached Figure 7 As described above, on the basis of Examples 1 and 2, a pulverized coal carbonization and carbonization chamber provided by the present invention is implemented, including the above-mentioned gas-guiding wall 12 with the gas-guiding structure and the supporting wall 17 provided. The gas guide wall 12 designed by the present invention is arranged on the center line of the carbonization chamber 16, and is parallel to the combustion chamber 18 on both sides, and the carbonization chamber 16 is divided into two, and the pulverized coal is carbonized by carbonization. The particle size is less than 10mm. The air-guiding wall 12 is built by combining air-absorbing bricks 1 and exhaust bricks 5 with "T"-shaped structures 6 and "-"-shaped structures 7 as basic structural units. When laying horizontally, the basic structural unit and the standard brick 14 are arranged flatly at intervals. Inside the gas guide wall 12, there are uni...

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Abstract

The invention discloses an air guide brick and an air guide wall thereof as well as a pulverized coal destructive distillation carbonization chamber applying the brick and the wall, wherein the air guide brick is internally provided with air receiving bricks and air exhaust bricks with air channel structures; the air guide wall is composed of at least one longitudinal air channel and at least one horizontal air channel which are formed by a plurality of air receiving bricks and air exhaust bricks in 'T' -shaped structures or 'straight-line'-shaped structures which are communicated with the air receiving bricks; the top end of each longitudinal air channel is provided with an air general channel, and the bottom end of each longitudinal air channel is provided with a tar channel; the carbonization chamber is positioned at the middle line of the carbonization chamber, and the part of the carbonization chamber parallel to a combustion chamber is provided with the air guide wall, and two surfaces of the air guide wall are provided with support walls. The air guide wall of the carbonization chamber provided by the invention internally forms a low-temperature protection region which has the characteristics of rapid guide speed of pyrolysis gaseous products, high comprehensive utilization of pulverized coal, reasonable structure, high intensity and the like.

Description

technical field [0001] The invention relates to a pulverized coal dry distillation carbonization chamber, in particular to an air-guiding brick and its gas-guiding wall, and a pulverized coal dry distillation carbonization chamber using the brick wall. Background technique [0002] The retort furnace is an important component equipment in the low-temperature retort production process. It should ensure high process efficiency and convenient and reliable operation. The main requirements are uniform heating of the retort material, easy control of the retort process, a wide range of available raw materials, a large range of raw coal particle sizes, and a small secondary pyrolysis effect of the derived volatiles. The carbonization chamber is an important part of the carbonization furnace. In existing low-temperature dry distillation carbonization chambers, such as the square carbonization chamber commonly used in northern Shaanxi, the raw coal is made of good quality lump coal, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10B53/04C10B47/06C10B27/00
Inventor 张永发郭红生陈磊梁言
Owner TAIYUAN UNIV OF TECH
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