Efficient electric combustion furnace for collecting fire coal PM2.5

Abstract

The invention relates to the technical field of experimental equipment, in particular to an efficient electric combustion furnace for collecting fire coal PM2.5. The efficient electric combustion furnace comprises a furnace body, the top of the furnace body communicates with a flow speed acceleration channel, the top of the flow speed acceleration channel is communicated with an exhaust pipe, and a cooling pipe assembly, a PM2.5 detection end and an exhaust filter element are sequentially arranged on the exhaust pipe in the airflow circulation direction; the furnace body is sequentially and fixedly connected with a heating wire, a supporting plate, an air inlet channel and a heat reflecting plate from top to bottom, the side wall of the furnace body is detachably connected with a feeding baffle, the feeding baffle is vertically and fixedly connected with a material storage plate, the material storage plate is of a hollow structure and is located above the heating wire, and the air inlet channel penetrates through the side wall of the furnace body; and an air supply structure for promoting uniform combustion is arranged on the air inlet channel. According to the efficient electric combustion furnace for collecting the fire coal PM2.5 provided by the invention, high-efficiency combustion of the fire coal can be realized, and the purpose of accurately measuring PM2.5 of the fire coal is realized.

Description

technical field [0001] The invention relates to the technical field of experimental equipment, in particular to a high-efficiency electric combustion furnace for collecting coal-fired PM2.5. Background technique [0002] PM2.5 is mainly converted from sulfur and nitrogen oxides, and these gaseous pollutants are often caused by the burning of fossil fuels (coal, oil, etc.) and garbage by humans. Compared with the coarser atmospheric particles, the fine particles produced are small in size, rich in a large amount of toxic and harmful substances, and have a long residence time in the atmosphere and a long transportation distance, so they have an impact on human health and the quality of the atmospheric environment. bigger. Studies have shown that the smaller the particle is, the greater the harm to human health, because the smaller the diameter, the deeper the part that enters the respiratory tract, and the harm of fine particles to human health. Bronchioles and alveoli direc...

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Problems solved by technology

[0003]The existing energy is mainly coal, and the smoke, sulfur dioxide, carbon monoxide and other harmful substances released during the combustion of coal will cause bronchitis, bronchial asthma, For diseases such as emphysema and lung cancer, it is necessary to conduct experimental research on coal PM2.5. At present, most of the burners on the market are used for household heating, which are not suitable for laboratory research on PM2.5. In order to solve the above Technical problem, Chinese patent CN 110394014A discloses a solid fuel PM2.5 detection experimental device, which realizes the combustion of materials through electric heating, and then installs a PM2.5 detection device at the discharge end to realize PM2.5 experimental detection However, in the disclosed structure, the intake pipe structure is set as an L-shaped structure, resulting in insufficient air supply, affecting the combustion state, and thus affecting the final detection result

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