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气体的清淨是化学工業中常遇到的問題。在化学生产过程中参加反应的气体往往带有許多微塵。例如,在燃燒时气体常帶出大量的固体的塵粒。一个大的水泥工厂每天所造成的微塵有数十噸之多。由於生產的要求,气体中的固体或液体微粒常需要除去或分离,这就叫做气体的清淨。气体的清淨在一些工業中有决定性的意义。我們知道,用接触法制造硫酸时,过程的能否順利進行,在一定程度上决定於气体清淨程度。一般常用的气体清淨方法可以分为机械除塵法、湿法、过濾法和电除麈法数种。机械除塵法在許多方面存在着不同程度的缺点。重力除麈的設备龎大,效率也低,只能除去較大
Gas cleaning is a problem often encountered in the chemical industry. The gases that participate in the reaction during chemical production tend to carry a lot of dust. For example, gases often carry large amounts of solid dust particles when burned. A large cement factory produces as many as tens of tons of dust per day. Due to the production requirements, the solid or liquid gas particles often need to be removed or separated, which is called the gas clean. The purity of gas is of decisive importance in some industries. We know that the process of manufacturing sulfuric acid by contact method, the smooth progress of the process, to a certain extent, depends on the degree of gas cleanliness. Commonly used methods of gas purification can be divided into mechanical dust removal method, wet method, filtration method and electricity removal method method. Mechanical dust removal in many ways, there are varying degrees of shortcomings. In addition to the gravity of the device 厐 large, efficiency is low, can only be removed larger