Method and tool for quick cleaning of hot blast stove burner
A cleaning method and burner technology, applied in furnaces, blast furnaces, heating furnaces, etc., can solve problems such as difficult pouring of refractory materials, difficulty in cleaning thoroughly, and existence of safety risks, so as to improve technical indicators, eliminate potential safety hazards, The effect of eliminating security risks
Active Publication Date: 2022-04-12
SGIS SONGSHAN CO LTD
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Problems solved by technology
The manhole above the burner of the temporary shutdown hot blast stove is opened at least above 1000°C. In the case of high time-limited requirements, it is difficult to clean thoroughly without special tools
The existing treatment method is: cut the steel shell of the hot blast furnace under the manhole according to the position of the vertical ruler on the surface of the burner, open a new hole, and clean the bricks with the vertical ruler. After cleaning, the steel shell is welded, and the internal refractory material is castable Filling recovery, but due to the high internal temperature of the burner, the refractory pouring operation is difficult, and the effect stability is poor, resulting in high temperature and redness around the newly opened hole when the blast furnace is blowing air, which poses a safety risk
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[0029] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0030] It is worth noting that the orientation words such as "up" and "down" involved in this article are all determined relative to the perspective of the drawings, and are only for the convenience of description, and cannot be understood as limitations on the technical solution.
[0031] Such as Figure 1-5 As shown, a quick cleaning method and tool for a hot blast stove burner, comprising the following steps:
[0032] S1, make cleaning tool, cleaning tool comprises the first comb rake 10, the second comb rake 11 and the first plate rake 12, the second plate rake 13: the first comb rake 10 and the second comb rake 11 are all made of straight bar 3 and Composed of the first rake body 8, the first rake body 8 is comb-shaped, the difference is that the straight bar 3 of the first comb rake 10 is perpendicular to the first rake body 8, and the straight...
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Abstract
The invention relates to a quick cleaning method and tool for a burner of a hot blast stove, comprising the following steps: making cleaning tools, including a comb rake and a plate rake; Fully open state; after the gas system catches coal, remove the outer steel shell and inner refractory material of the ignition hole; use cleaning tools to clean the refractory brick above the burner until the grid hole of the burner is cleared; remove the maintenance manhole under the burner , the maintenance manhole is located between the air and gas branch pipes of the hot blast stove and the burner, from which the maintenance manhole enters the interior, and the passage of the air and gas branch pipes is cleaned; after cleaning, the interior of the ignition hole is sealed according to the original design drawings Refractory materials, reinstallation of the external steel shell and manholes for inspection. The cleaning time required by the invention is short, and it can be carried out synchronously during regular maintenance of the blast furnace. The cleaning effect of the burner is good, the air temperature rises obviously, and the potential safety hazard caused by gas segregation can be eliminated.
Description
technical field [0001] The invention relates to the technical field of blast furnace hot blast stove technology, more specifically, it relates to a method and tool for quick cleaning of a hot blast stove burner. Background technique [0002] The burner of the internal combustion hot blast stove is at the bottom of the fire well. After the collapse of bricks above the fire well, all of them will fall into the burner area. Large refractory bricks are piled on the surface of the burner, and small refractory bricks will fall into the burner from top to bottom The air and gas passages below. As a result, the grid holes above the burner and the air and gas passages below are blocked. When the hot blast stove is fired, the amount of gas burned is greatly reduced, and the heat storage of the regenerator and the temperature of the air sent out are also greatly reduced. At the same time, because the grid holes above the burner are unevenly blocked, the gas that can pass through the r...
Claims
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IPC IPC(8): C21B9/10C21B9/04
CPCC21B9/10C21B9/04
Inventor 杨国新艾中路沈志宏李伟庄锦填潘伟恩柏徳春陈炯张志坚
Owner SGIS SONGSHAN CO LTD