A high temperature dust removal system for yellow phosphorus furnace gas

Abstract

The invention discloses a high-temperature dust removal system for yellow phosphorus furnace gas, which comprises a mechanical dust collector. The mechanical dust collector is provided with an air inlet, an air outlet and a dust collection port. The conveying pipe is connected, and the air outlet is connected with an anti-condensation device, a filter device and an ash discharge device in turn, and the ash discharge device is also connected with the dust collection port, and also includes a back blowing device and a safety explosion-proof automatic control device , the back blowing device is respectively connected with the anti-condensation device and the filter device, and the safety explosion-proof automatic control device is respectively connected with the anti-condensation device, the ash discharge device and the back blowing device. The invention can effectively prevent dew condensation and tar sticky film in the filter device, improve the dust removal effect, and further improve its filtration efficiency. safety.

Description

technical field [0001] The invention relates to the technical field of yellow phosphorus production and processing, in particular to a high-temperature dust removal system for yellow phosphorus furnace gas. Background technique [0002] Part of the dust in the yellow phosphorus furnace gas is generated by the dust entrained in the raw material or heated and exploded, and the other part is the volatile compound generated by the chemical reaction of the furnace charge. The volatile compound will condense after the temperature is lowered. The dust particles produced by the former are relatively large, exceeding 10 μm, while the latter has a high degree of dispersion, generally less than 10 μm, and the dust content in the phosphorus furnace gas is generally 50-150g / m3. [0003] Due to the flammability, explosion and poisoning of phosphorus furnace gas, and the high condensation temperature of phosphorus vapor, small and medium-sized phosphorus furnaces generally do not have spec...

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Problems solved by technology

[0003] Due to the flammability, explosion and poisoning of phosphorus furnace gas, and the high condensation temperature of phosphorus vapor, small and medium-sized phosphorus furnaces generally do not have special phosphorus furnace dust removal equipment, which has led to yellow phosphorus production enterprises using traditional processes, with a large amount of by-products Phosphorous sludge, the comprehensive utilization level of the products produced in the whole process route is low, the pollution is serious, and the recovery rate is low (72% to 87% for small devices)

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