Hydrogen sulfide removing device and method in fluidized bed gas generating device for non-ferrous smelting
A generating device and hydrogen sulfide removal technology, which is applied in the field of metallurgical gas, can solve problems such as fluctuations in coal intake, unstable gasification, and high energy consumption of mixing devices, and achieve the effects of ultra-low emissions, low cost, and small footprint
Pending Publication Date: 2020-07-17
GUIYANG AL-MG DESIGN & RES INST
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Problems solved by technology
The energy consumption of the mixing device is high, and if the mixing is not uniform, it will cause fluctuations in the amount of coal fed per unit time, resulting in unstable gasification
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[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.
[0016] The present invention is implemented like this: figure 1 As shown, the pulverized coal enters the coal gas generator 5 through the pulverized coal screw feeder 3, and the mixture of gasification agent air and water vapor enters the equipment from the gas blowing port of the gas generator 5, and at the same time, the desulfurizing agent limestone powder enters the gas generator 1 in the powder fluidization device 1. After being fluidized, it is sprayed into the coal gas generating device 5 through the air flow dispersing device 9 and the powder output device 10 and reacts with the pulverized coal during gasification. The chemical reaction formula is: CaCO 3 =CaO+CO 2 , CaO+H 2 S=CaS+H 2 O, CaCO 3 +H 2 S=CaS+H 2 O+CO 2 . At the upper part of the gas generator 5, t...
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The invention discloses a hydrogen sulfide removing device and method in a fluidized bed gas generating device for non-ferrous smelting. The device comprises a fluidized bed gas generation device andan injection system for fluidizing a desulfurizing agent and injecting the fluidized desulfurizing agent into the gas generation device, the upper part of the coal gas generating device is connected with a cyclone separator, the lower part of the cyclone separator is provided with a return feeder which is communicated to the lower part of the coal gas generating device to form a circulating channel, a pulverized coal bin is further arranged on the side face of the coal gas generating device, and the pulverized coal bin is provided with a pulverized coal spiral feeder which is communicated to the lower portion of the coal gas generating device to form a feeding channel. According to the device and the method, raw gas does not need to be greatly transformed, the system is simple, the cost islow, secondary pollution is avoided, ultralow emission of SO2 is realized in the device and the gasification stability is not influenced. Besides, the coal gas does not need to be cooled and then desulfurized after hydrogen sulfide is removed, and hot coal gas can be directly supplied to process equipment, so that the investment of cooling equipment and the heat energy loss are further saved.
Description
technical field [0001] The invention relates to a hydrogen sulfide removal device and method in a fluidized bed gas generating device for non-ferrous smelting, belonging to the technical field of metallurgical gas. Background technique [0002] Most of the sulfur in the gas is H 2 The form of S exists, while the H 2 S is converted to SO after combustion of gas 2 . With the development of the economy, my country has further intensified the energy conservation and pollution control of coal-consuming enterprises, and has achieved positive results through the implementation of energy conservation transformation, comprehensive pollution control, promotion of energy efficiency benchmarking, strengthening supervision and law enforcement, and strengthening capacity building. , but there are still some problems. [0003] Conventional gas semi-dry desulfurization and wet desulfurization, occupy a large area, produce secondary pollution, consume water resources, high operating costs...
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IPC IPC(8): C10J3/84C10J3/82C10J3/48
CPCC10J3/48C10J3/82C10J3/84
Inventor 徐阳王志强涂湘巍钱芳高义戴庆伟
Owner GUIYANG AL-MG DESIGN & RES INST