Pneumatic cutting and sampling device for particulate matter and its operating method

Abstract

The invention discloses a particle pneumatic cutting and sampling device and an operation method thereof. The particle pneumatic cutting and sampling device comprises a sampling part, an inertial separating device, a gun body, a particle sampling device and a control processor. An inlet of the sampling part is used for introducing smoke carrying residual ash particles. An outlet of the sampling part is communicated with an inlet of the inertial separating device. The inertial separating device is provided with a gas outlet and a particle outlet. The particle outlet is communicated with an inlet of the gun body. An outlet of the gun body is communicated with an inlet of the particle sampling device. An outlet of the particle sampling device is used for collecting particles. The control processor is used for controlling the gas flow of the sampling part, the inertial separating device, the gun body and the particle sampling device. By means of the particle pneumatic cutting and samplingdevice, the separation of gas-phase inorganic substances and the residual ash particles in the smoke under the high-temperature environment can be achieved, the coagulation and nucleation of the gas-state inorganic substances and the physiochemical reaction between the gas-state inorganic substances and the residual ash particles in the subsequent sampling process can be avoided, and the true validity of sampling of the residual ash particles can be ensured.

Description

technical field [0001] The invention belongs to the technical field of solid fuel combustion and environmental pollution discharge, and in particular relates to a particulate matter pneumatic cutting and sampling device and an operating method thereof. Background technique [0002] Coal has always been the main primary energy source in my country, accounting for more than 60%, and this pattern will not change significantly for a long time. There are more or less problems such as coking and pollution in the combustion and utilization of coal, especially the Zhundong coal with huge reserves discovered in Xinjiang in recent years. Due to its high alkali metal content, it is easy to cause serious coking and pollution on the heating surface. pollution problem. During the combustion process of pulverized coal, cokes with different structures are generally produced by pyrolysis, and then these cokes are broken during the combustion process to form a large number of fine fragments....

AI Technical Summary

Problems solved by technology

Due to the fact that the current sampling method cannot realize the separation of the gaseous inorganic substances in the flue gas from the solid residual ash particles at high temperature, the gaseous inorganic substances at high temperature will condense and nucleate due to the decrease in temperature during the sampling process and have physical interaction with the residual ash particles. Chemical processes, etc., thereby changing the characteristics of residual ash particles, a new type of sampling device is urgently needed

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