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该厂一氧化碳催化剂车间混料岗位在混料、下料时产生大量铬酸酐粉尘。为了消除粉尘危害，我们设计了超高压静电空气离子化集尘箱，使混料岗位工人操作地点呼吸带粉尘浓度由７２．６ｍｇ／ｍ￣３下降为１０．５ｍｇ／ｍ￣３，除尘率为８５．５％，下料口旁１ｍ高处粉尘浓度由１４８．８ｍｇ／ｍ￣３下降为９．７ｍｇ／ｍ￣３，除尘率为９３．４％，未加超高压静电时集尘箱排风口粉尘浓度为２６３．９ｍｇ／ｍ￣３，加高压后下降为１５．９ｍｇ／ｍ￣３，除尘率为９４％；厂房中空气负离子浓度由１２×１０￣４／ｍ￣３增加为５．７×１０￣９个／ｍ￣３。结果表明超高压静电空气离子化集尘箱除尘净化空气效果明显。
The plant carbon monoxide catalyst plant mixing station in the mixing, feeding a lot of chromic anhydride dust. In order to eliminate the dust hazards, we designed a high-voltage electrostatic ionized air ionization dust box to reduce the concentration of dust in the breathing zone of workers at the mixing station from 72.6mg / m ~ 3 to 10.5mg / m ~ 3, 85.5%. The dust concentration at the height of 1m beside the discharge mouth decreased from 148.8mg / m3 to 9.7mg / m3 and the dust removal rate was 93.4% The tuyere dust concentration is 263.9mg / m ~ 3, after adding high pressure drops to 15.9mg / m ~ 3, the dedusting rate is 94%; the concentration of air anion in the plant increases from 12 × 10 ~ 4 / m ~ 3 to 5 .7 × 10 ~ 9 / m ~ 3. The results show that EHV electrostatic air ionization dust box dust removal air purification effect is obvious.