Pneumatic conveying characteristics of a modern and efficient transport large static pressure molding line modeling material required hourly turnover amounted to 200t (wherein the amount of coal, clay powder is 8-10t, the amount of new sand 15-20t). Transport distance casting material handling plant transportation between the workshop and Industry from several hundred meters to over 10 meters. Good effect of dust foundry industry high dust concentrations, high temperatures, high labor intensity. Using pneumatic conveying can solve some other mechanized transportation equipment caused by environmental pollution pneumatic conveying equipment prices, improve the production environment of the foundry industry. Pneumatic conveying equipment works make up the pneumatic conveying pneumatic conveying equipment quoted in the vertical pipe, the gas velocity is high suspended particles are dispersed in the gas stream. In particle transport volume is constant, the lower gas velocity, solids content pipeline will be increased. When the gas velocity is reduced to a critical value, the air was not so dense particles are uniformly dispersed particles merge into a plunger-like pneumatic conveying equipment, slugging phenomenon occurs (see) the principles of pneumatic conveying equipment, pressure drop dramatically. This critical speed, said choking velocity, which is the lower limit of the upward vertical transport of dilute phase gas velocity. For a uniform particle diameter, deposition rate and choking velocity substantially equal. Pneumatic conveying cans, Henan pneumatic conveying equipment, environmental protection provided by Honda Xinxiang City Hongda energy saving equipment Limited. Xinxiang City Hongda energy saving equipment Limited (www.xxhdjnhb.com) strong, credible, in Xinxiang mortar industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead HTC into the brilliant green and you work for a better future!