Pneumatic transmission mode for powder and device thereof

Abstract

The invention discloses a pneumatic transmission method for fine powder, comprising following steps. The first step is that by negative pressure way fine powder is pumped and transmitted to receiving end from sending end by pipes. The second step is that powder-air separator is set at the receiving end to separate the mixture of fine powder and air transmitted from pipes. The invention also discloses a pneumatic transmission device for fine powder, comprising a first storing tank, transmitting pipe, a second storing tank, powder-air separator and pump. The first storing tank is connected withthe second storing tank by transmitting pipes. The powder-air separator located in the second storing tank divides the second storing tank into fine-power storing zone and air collecting zone. The pump is connected with the air collecting zone and the compressor is connected with the air collecting zone by air pulse valve. The invention is provided with good directivity, no leakage, simple structure, easy maintenance and low maintenance cost.

Description

technical field [0001] The invention relates to a fine powder transmission method and device, in particular to a fine powder pneumatic transmission method and device. Background technique [0002] Pneumatic conveying of solid fine powder refers to the use of a certain flow rate of gas to flow in the pipeline, and the flowing gas will push the movement of solid fine powder in the pipeline, so as to complete the transportation of solid fine powder. In many industries such as petroleum, chemical industry, medicine, grain, food, electric power, building materials, metallurgy, mining, storage, etc., there are powder and granular materials that need to be transported. During the transportation of powder and granular materials, there are problems of mutual pollution of materials to the environment and the environment to materials. On the one hand, many materials are corrosive and pungent, which are very harmful to the human body and pollute the environment; etc., that is, the env...

AI Technical Summary

Problems solved by technology

Among them, the sending tank type pipeline pneumatic conveying has the following disadvantages: 1) the control system is more complicated, the device structure is more complicated, and the construction cost is high; 2) there are many moving parts during operation, resulting in a high failure rate of the system and high maintenance costs; 3) transportation The pressure in the pipeline is greater than atmospheric pressure, and the fine powder in the pipeline is easy to leak out at the joint seal

4) From the sending place to the destination is a "passive" push-type sending, with poor directionality, which is another reason for easy leakage

For the rotary valve type traditional pipeline pneumatic conveying, there are the following disadvantages: 1) Although the control system and device structure are not complicated compared with the sending tank type pneumatic conveying, the construction and maintenance costs of the post-transport system are relatively high; 2) the conveying distance Shorter, less conveying volume

Images