Premixing low-pressure injection heat storage type nozzle
A low-pressure injection, regenerative technology, applied in burners, combustion methods, combustion types, etc., can solve problems such as low pressure, affect work efficiency, increase costs, etc., achieve uniform temperature, high combustion efficiency, and reduce nitrogen oxides. effects of emissions
Inactive Publication Date: 2012-02-01
宁夏华亿镁业股份有限公司
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Problems solved by technology
When using low-calorific value producer gas, it is necessary to adopt the form of double preheating of air and gas. During double preheating, the air gas has an independent heat storage tank. At the same time, because the gas contains inexhaustible tar, the tar passes through High-temperature regenerators will cause pyrolysis and carbonization. After the gas is carbonized, the regenerators will be blocked, resulting in frequent replacement of regenerators, which will affect work efficiency and increase costs.
At the same time, due to the depressurization of part of the producer gas during the re-transportation process, the pressure is very low when it reaches the heating furnace, and the stable supply of fuel cannot be guaranteed, thus affecting the combustion and heating process
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[0011] The present invention will be described in further detail below in conjunction with accompanying drawing:
[0012] Such as figure 1 As shown, the present invention includes the pouring body 2 of the heat storage box inside the wall and the bellows 5 outside the wall, and an air passage 8 communicating with each other is arranged in the pouring body 2 of the heat storage box and the bellows 5, and a baffle is installed in the air passage 8 Firebrick 3 and regenerator 4, natural gas nozzle 6 is installed in the pipeline at the entrance of air passage 8, and this natural gas nozzle 6 is communicated with natural gas source, and injection nozzle 1 is installed at the exit of air passage 8, in the The pouring body 2 of the regenerator box and the bellows 5 are also provided with a gas channel 9 communicating with each other. A sonic ash remover 7 is installed on the pipeline at the entrance of the gas channel 9. A fire brick 3 and a storage tank are installed in the gas chan...
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The invention relates to a nozzle of a heat storage type combustion device for an industrial heating furnace, in particular to a premixing low-pressure injection heat storage type nozzle, which is characterized in that: a natural gas nozzle (6) is arranged in a pipeline at the inlet of an air passage (8) and is communicated with a natural gas source; an injection nozzle (1) is arranged at the outlet of the air passage (8); a coal gas passage (9) communicated is arranged in a heat storage tank casting body (2) and a wind box (5); an acoustic soot blower (7) is arrange on a pipeline at the inlet of the coal gas passage (9); an anti-fire brick (3) and a heat storage body (4) are arranged in the coal gas passage (9); and the outlet of the coal gas passage (9) is communicated to the side of the injection nozzle (1) to reduce the pressure required by the coal gas for entering the furnace. The nozzle can be applied to various industrial furnaces taking natural gas and producer gas as fuel, and also has more advantages on occasions requiring lower coal gas pressure.
Description
technical field [0001] The invention relates to a burner of a regenerative combustion device for an industrial heating furnace, in particular to a premixed low-pressure injection regenerative burner. Background technique [0002] Regenerative high-temperature air combustion technology is a new type of combustion technology developed in recent years. Because of its remarkable energy-saving effect and environmental protection benefits, it is being actively promoted in industrial furnaces. The regenerative burner is usually composed of a regenerator (ceramic honeycomb body is placed inside), an air box, a gas nozzle, and a system is formed by a pipeline and a reversing valve in the system. [0003] At present, regenerative waste heat recovery has been realized in metal magnesium reduction furnaces, and the fuels are producer gas, coke oven gas and natural gas, all of which have achieved good results. When using low-calorific value producer gas, it is necessary to adopt the for...
Claims
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IPC IPC(8): F23D14/02F23D14/46F23D14/48
Inventor 董家驭王秀荣拓万兰王婧
Owner 宁夏华亿镁业股份有限公司