对工业废气进行脱硫处理的设备，以塔式设备居多，即为脱硫塔。脱硫塔最初以花岗岩砌筑的应用的最为广泛，其利用水膜脱硫除尘原理，又名花岗岩水膜脱硫除尘器，或名麻石水膜脱硫除尘器。优点是易维护，且可通过配制不同的除尘剂，同时达到除尘和脱硫（脱氮）的效果。现在随着玻璃钢技术的发展，脱硫塔逐渐改为用玻璃钢制造。相比花岗岩脱硫塔，玻璃钢脱硫塔成本低、加工容易、不锈不烂、重量轻，因此成为今后脱硫塔的发展趋势。另外具有耐腐蚀、耐高温、耐磨损三大优势，也是脱硫塔发展重要趋势之一。经过多年的改进，已发展成文丘里型、旋流板型、旋流柱型、浮球型、筛板型、气动乳化型等各种类型的脱硫塔，设备技术日趋成熟，各有优点和不足，企业可依自身需要选用不同类型。 The equipment for desulphurization of industrial waste gas is centered on tower equipment, which is desulphurita. Desulfurization tower was originally to granite masonry is the most widely applied, its use of water film desulfurization dust removal principle, also known as granite water film dust remover, or of the granite water film dust remover. The advantages are easy to maintain and can be achieved by mixing different dedusting agents with dust removal and desulfurization (denitrification). Now with the development of glass and steel technology, desulfurizer is made from glass. Compared with the granite desulfurization tower, the glass steel desulfurization tower is low cost, the processing is easy, the rust is not bad, and the weight is light, so it becomes the development trend of desulfurization tower in the future. The three advantages of corrosion resistance, high temperature and wear resistance are also one of the important trends of desulfurization. After years of improvement, has developed a written venturi type, plate type, cyclone column type, floating ball, sieve plate type, pneumatic emulsion type and other types of desulfurization tower, the equipment technology matures, each have advantages and disadvantages, the enterprise can choose different types according to their need.