A fixed fly ash sampling device and method for a coal-fired boiler
A sampling device and coal-fired boiler technology, applied in the field of fly ash sampling, can solve problems such as not suitable for on-site application in power plants, expensive, prone to various failures, etc.
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[0059] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0060] figure 1 Among them, the coal-fired boiler fixed fly ash sampling device of this embodiment includes a sampling device, a cyclone separation and storage device, a flue gas flow measurement system, a heating device, a preheating and a blowback system;
[0061] The sampling device includes a sampling gun 1 and a rotating device. The gun head of the sampling gun 1 is placed in the inlet flue 2 of the air preheater, and the tail of the gun is connected to the cyclone separation device 3; The first sampling gun, the sampling gun 1 is provided with two sampling ports, and the suction speed of the two sampling ports is designed to be exactly the same. There is a suction static pressure measuring hole inside the sampling port, and a flue gas static pressure measuring hole on the outside of the gun head. By adjusting the static pressure balance, the two ...
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