Measurement packing method for powder containing air

Abstract

The invention discloses a measurement packing method for powder containing air. A powder material from an airflow conveying system is temporarily stored in a powder bin; a screw feeder arranged at the bottom of the bin feeds to a middle material cylinder; the material in the middle material cylinder is sent into a packing bag through a hollow stirring shaft; the air contained in the powder is pumped out through a filtering rod arranged inside the hollow stirring shaft in the flow direction; the air pumping process is divided into two levels; according to the first level, air pumping is conducted in a packing material cylinder; according to the second level, deep air pumping is conducted in the packing bag; when the material in the packing bag reaches 99.8% of the rated value, the air pumping filtering rod is quickly removed, and a cut-off valve is turned down; when the weight of the material in the packing bag reaches the set value, the screw conveyor stops feeding, and the cut-off valve is quickly closed; and measurement packing work is completed, and the subsequent working procedures of bag sewing and stacking are executed. According to the measurement packing method, the problem existing in the measurement packing process of the powder containing the air can be effectively solved, and efficient and accurate measurement packing is achieved.

Description

technical field [0001] The invention relates to a method for measuring and packaging gas-containing powder. Background technique [0002] In the process of industrial production, the measurement and packaging of gas-containing powder is a difficult problem. Its main disadvantages are that due to the existence of gas in the powder, the packaging efficiency becomes lower and the accuracy of measurement becomes worse, which affects subsequent transportation, palletizing and stacking, etc. At the same time, due to the "fluffy" material, the packaging bag The utilization rate is low, and these phenomena are more prominent for gas-containing powder materials with low bulk density and poor fluidity. Contents of the invention [0003] The purpose of the present invention is to provide a metering and packaging method for gas-containing powder that can effectively alleviate the problems existing in the metering and packaging process of gas-containing powder and realize efficient an...

AI Technical Summary

Problems solved by technology

Its main disadvantages are that due to the existence of gas in the powder, the packaging efficiency becomes lower and the accuracy of measurement becomes worse, which affects subsequent transportation, palletizing and stacking, etc. At the same time, due to the "fluffy" material, the packaging bag The utilization rate is low, and these phenomena are more prominent for gas-containing powder materials with low bulk density and poor fluidity

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