Coal, gas integral cleaning combustion boiler
A clean combustion and gas technology, applied in the direction of solid fuel combustion, combustion equipment, lighting and heating equipment, etc., can solve the problems of maintenance, operation complexity, difficulty in automation, low efficiency, etc.
Inactive Publication Date: 2008-02-13
北京众恒力热能环保科技有限公司
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Problems solved by technology
[0003] Accordingly, coal gasification and combustion coal-fired boilers have come out in recent years, but there are still many deficiencies that need to be improved urgently: 1. The combustion conditions of existing boilers often fluctuate periodically, the actual operation is complicated, and the efficiency of coal conversion into gas Low, insufficient combustion, high carbon content in slag, low boiler thermal efficiency; 2. The existing boiler production parameters are low, only hot water can be produced, and there is no steam boiler at present; 3. The existing boiler structure is unreasonable, and maintenance and operation are complicated , the cost requirements are high, and it is difficult to realize the self-
[0004] 3. The structure of the existing boiler is unreasonable, the maintenance and operation are complicated, the cost is high, and it is difficult to realize automation
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[0025] The coal-gas integrated clean combustion boiler of the present invention is shown in Figure 1. The boiler has a movable grate 18, an ash pit 16, a gas generating chamber 23, a gas combustion chamber 24, a smoke box 3, a drum 6 and other components.
[0026] The coal added from the upper coal hopper 2 is burned in the middle layer of the gas generating chamber 23, and the coal is converted into gas. The gas accumulates in the gas generating chamber 23 and is introduced into the gas generating chamber through the burner 12 on the furnace wall of the gas generating chamber 23. Combustion is carried out in the gas combustion chamber 24 behind the chamber 23, and the heat generated by the gas combustion is transferred to the heating surface to produce steam.
[0027] The coal-gas integrated clean combustion boiler of the present invention preferably adopts a reciprocating fire grate. The reciprocating fire grate is made up of fixed fire grate bars 18 and movable fire grate 1...
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The invention is a coal and gas integrated clean combustion boiler. The internal side of the boiler is equipped with a coal gas generation chamber, a reciprocating furnace grate and a coal gas combustion chamber. A seal boiler wall and water pipes are around the coal gas generation chamber. The front section of the coal gas generation chamber is equipped with a seal coal-feeding bucket and a furnace grate. The reciprocating cast iron furnace grate is arranged at the lower section of the coal gas generation chamber. An ash pit for the falling slag is arranged behind the furnace grate. A seal refractory arch is arranged in the ash slag area. The coal gas combustion chamber is behind the coal gas generation chamber. A combustor inside the furnace is arranged at the upper section of the coal-gas chamber, and coal gas is combusted inside the coal gas combustion chamber with the combustor. In order to increase the gas output of coal and prevent coal clinkering, a steam feeding device is arranged under the reciprocating furnace grate and the amount of steam fed is controlled by a valve.
Description
technical field [0001] The invention relates to a coal-to-gas integrated clean combustion boiler and an operating method thereof, which convert coal into gas and then burn the gas to produce steam. Background technique [0002] The country's requirements for environmental protection continue to increase. Traditional coal-fired boilers have low efficiency and large pollutant emissions, and it is difficult to meet the national emission standards. The use of coal-fired boilers has been restricted. Coal is one of the main energy sources in China, and it will still be the main energy source in my country for a considerable period of time in the future. However, the main form of coal utilization in existing boilers or kilns is direct combustion, and the proportion of direct coal combustion is very large. At present, the vast majority of industrial and civil boilers in my country still use direct combustion of raw coal, causing serious dust pollution and energy waste. With the inc...
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IPC IPC(8): F23B99/00
Inventor 陈星照
Owner 北京众恒力热能环保科技有限公司