Application of pipeline pneumatic conveying in ceramic sand industry

The ceramic sand (oil fracturing support agent) is a special material in the oil and gas field fracturing operation, which plays an important role in the development of oil and gas fields. It has an incomparable advantage on improve the oil and gas output and reduce the exploit cost. At present, although the production and quality of the domestic ceramic industry have been effectively improved and controlled, the material storage and transportation process are still faced with many unfavorable factors such as high dust pollution, high energy consumption and so on.

Belt conveyor, screw conveyor, bucket elevator, chute and other machinery and equipment are used in the traditional ceramic sand raw materials storage and transportation. simple use of such kind of machinery and equipment has serious drawbacks, such as difficult to feed material, easy plugging material, long flow of conveying, a large number of transportation times and serious dust pollution.

Henan Zhengzhou Machinery Co., Ltd has a long history and rich experience in the storage and transportation of solid and powder materials. In order to solve the problem of raw material storage and transportation in the industry, Henan Zhengzhou mining industry takes the lead in the use of powder pipeline pneumatic conveying technology. After rigorous two-phase flow simulation calculation and combined with the technical department of the powder pipeline pneumatic conveying experience, it solved many drawbacks in the traditional ceramic sand raw material storage and transportation process.

Bauxite and other raw materials are uniformly feeding into the power accelerator developed by Zhengzhou Mining Machinery by a short distance sealing screw conveyor and sealing of rotary feeding valve and accelerated immediately by the compression air from roots blower, while gas-solid mixtures enter into the Lipp silo storage directly through pipelines. The shorter delivery process and seamless sealing good solve the dust pollution perfectly, because of a relatively short process, less transportation times, less mechanical equipment and the unit decreased conveying power consumption for per unit.

This method has already been applied in the part project of the general contract of the Zhengzhou Mining Machinery Co., Ltd., and achieved good results. With its obvious advantages, the pipeline pneumatic conveying will be a good and positive effect on the environmental protection and the cost of production enterprises.