Online detection device for grain size distribution of fire coal of power plant and detection method thereof

A particle size distribution and detection device technology, applied in the direction of measuring devices, particle size analysis, sampling devices, etc., can solve the problems of poor accuracy, complicated process, complicated operation, etc., and achieve the effect of easy inspection, convenient installation and low transformation cost

Pending Publication Date: 2018-03-09
保定北能电力科技有限责任公司
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  • Abstract
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Problems solved by technology

[0003] At present, coal powder particle size detection in power plants mainly relies on coal powder sampling devices to regularly sample incoming coal powder, and then sends them to the coal quality analysis room for screening and calculation by vibrating sieve machines. Due to the particle size distribution of coal powder

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  • Online detection device for grain size distribution of fire coal of power plant and detection method thereof
  • Online detection device for grain size distribution of fire coal of power plant and detection method thereof
  • Online detection device for grain size distribution of fire coal of power plant and detection method thereof

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[0028] Such as figure 1 As shown, an online detection device for coal-fired particle size distribution in a power plant, an online detection device for coal-fired particle size distribution in a power plant, includes one end for sampling from the primary air pulverized coal pipeline 13 through which the coal-fired power station enters the furnace. The other end of the sampling pipe is connected to the inlet end of one side of the cyclone separator 2, and the outlet end of the lower end of the cyclone separator 2 is connected to the inlet of the upper end of the sampling classifier 3 below, the sampling classifier The outlet at the lower end of 3 is connected to the first powder return pipeline 4, one end of the first powder return pipeline 4 is connected to the primary air powder conveying pipeline 13, and the other end is used to connect a gas source. The sampling classifier 3 includes In the transparent sampling area 11, a photographing camera 5 is arranged on one side of the ...

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Abstract

The invention discloses an on-line detection device for particle size distribution of coal fired in a power plant, which comprises a sampling pipe at one end for sampling from a primary air powder delivery pipeline through which pulverized coal enters the furnace in a coal-fired power station, and the other end of the sampling pipe is connected to a cyclone The inlet end of one side of the separator, the outlet end of the lower end of the cyclone separator is connected to the inlet of the upper end of the sampling classifier below, and the outlet of the lower end of the sampling classifier is connected to the first powder return pipeline, and the second One end of the powder returning pipeline is connected to the primary wind powder conveying pipeline, and the other end is used to connect to the air source. The sampling classifier includes a transparent sampling area. One side of the sampling area is equipped with a camera, and the other side is set There is a light source, and the shooting camera is connected to the server. The invention not only realizes the online detection of coal powder particles, but also can adjust the coal mill output in real time according to the coal powder particle information, reduces the coal mill output while ensuring the coal fineness, reduces the power consumption of the power plant itself, and improves the operation economy sex.

Description

technical field [0001] The invention relates to the field of particle size detection of coal powder in coal-fired power plants, in particular to an on-line detection device and method for detecting coal particle size distribution in power plants. Background technique [0002] The particle size of pulverized coal particles in coal-fired power plants has a crucial impact on the combustion efficiency and pollutant emissions of boilers. Real-time acquisition of particle size distribution of pulverized coal particles into the furnace is convenient for operators to adjust coal mill output and air supply volume in time, so as to achieve combustion optimization and energy saving. Therefore, it is very necessary to realize the online detection of coal particle size distribution. [0003] At present, coal powder particle size detection in power plants mainly relies on coal powder sampling devices to regularly sample incoming coal powder, and then sends them to the coal quality analys...

Claims

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Application Information

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IPC IPC(8): G01N15/02G01N1/22
CPCG01N15/0227G01N1/2211
Inventor 高正阳杨维结赵霖
Owner 保定北能电力科技有限责任公司
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