Opening type roasting fire way pulling brick and method of fire hole arrangement

An arrangement method and an open technology, applied in the direction of furnaces, furnace components, lighting and heating equipment, etc., can solve problems such as easy deformation and influence on heat transfer uniformity, so as to prolong service life, improve gas flow and extend flame length Effect

Active Publication Date: 2013-06-05
SHENYANG ALUMINIUM MAGNESIUM INSTITUTE
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AI Technical Summary

Problems solved by technology

[0003] 1) There is a serious "edge effect" when the flue gas flows in the flue, and the unevenness of the flow directly affects the uniformity of heat transfer
[0004] 2) Since there is no pull brick in the local position, this area is prone to deformation due to high temperature and side pressure of the material box during use

Method used

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  • Opening type roasting fire way pulling brick and method of fire hole arrangement
  • Opening type roasting fire way pulling brick and method of fire hole arrangement

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with accompanying drawing.

[0015] As shown in the figure, the open-type roasting furnace fire path brick and fire hole layout method of the present invention, the two adjacent fire path bricks 3 in the roasting furnace adopt a staggered arrangement in the height direction, so that the adjacent two fire path bricks The height is not on a straight line, which makes the air flow more uniform when flowing in the height direction, and changes the phenomenon of smoke stagnation in the backflow area of ​​the traditional straight line arrangement.

[0016] At each turn of the "W" flow form of the fire channel, a U-shaped 5 or inverted U-shaped diversion structure is formed by four pull bricks, so that the airflow flows to the back flow area of ​​the partition wall 4 after turning, ensuring that the smoke is kept in the fire The uniformity of the flow in the channel, while ensuring the uniformity of heat tran...

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Abstract

The invention relates to a fire way pulling brick and a method of a fire hole arrangement, in particular to an opening type roasting fire way pulling brick and a method of the fire hole arrangement used for a nonferrous metallurgy industry. A staggering arrangement is adopted on the height direction of the roasting fire way pulling brick. A U-shaped or a reversed U-shaped arrangement is formed through four pulling bricks on every corner position of the fire way 'W' flowing form. The distance between the two fire holes in the middle portion is reduced. The distance of the fire holes on two sides and the fire holes in the middle portion is increased. The fire way pulling brick and the method of the fire hole arrangement have the advantages that gas flowing of the fire way pulling brick and a back flow area of a separating wall is improved, thus the gas flowing of the fire way is uniform and uniformity of the temperature is increased. The length of flame is prolonged and quantity of passing fire of a passing fire hole is reduced. The heat transferring efficiency in the fire way of the high temperature hot air is improved. The quantity of the pulling bricks is increased partially, stability of the fire way structure is improved, and thus service life of the fire way is prolonged.

Description

technical field [0001] The invention relates to a method for arranging fire path bricks and fire holes, in particular to a method for arranging fire path bricks and fire holes for an open roasting furnace used in the non-ferrous metallurgical industry. Background technique [0002] The open roasting furnace adopts the method of indirect heating of high-temperature flue gas and roasted products to roast the roasted products at high temperature. The high-temperature flue gas transfers heat to the roasted products in the material box through the flue wall. At the same time, the flow direction of the flue gas is changed by pulling bricks to achieve the effect of uniform flow field; in the forced heating stage, additional fuel is added to the fire channel through the fire hole for combustion. In actual use, there are the following problems. [0003] 1) There is a serious "edge effect" when the flue gas flows in the flue, and the unevenness of the flow directly affects the unifor...

Claims

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Application Information

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IPC IPC(8): F27D1/00
Inventor 刘朝东崔银河吕博王敏周善红
Owner SHENYANG ALUMINIUM MAGNESIUM INSTITUTE
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