Equivalent-drop height powder impulse flowmeter

Abstract

The invention relates to an equivalent-drop height powder impulse flowmeter. The equivalent-drop height powder impulse flowmeter is characterized in that the upper part of a shell of the equivalent-drop height powder impulse flowmeter is provided with a herringbone material guide pipe; the shell is internally provided with a feeder, an equivalent-drop height discharger and a material supporting plate from top to bottom, the feeder is a multi-blade rotating feeder, and multiple blades of the multi-blade rotating feeder are fixed on a rotating shaft by being arrayed at intervals in a conical shape; the equivalent-drop height discharger is composed of a discharging chute and a truncated conical drum positioned in the middle of the discharging chute, the conicity of the truncated conical drum is the same as the array conicity of the blades of the multi-blade rotating feeder, and a group of small discharge holes are respectively arranged in two sector areas which are perpendicular to the central connection line direction of two discharge ports of the herringbone material guide pipe; the material supporting plate is formed into a conical material supporting plate and arranged just below the truncated conical drum through a pressure sensor assembly, the conicity of the conical material supporting plate is the same as that of the truncated conical drum, and central lines of the two conical structures are coincided; and perpendicular discharging heights from the centers of all small discharge holes positioned on the truncated conical drum to the conical material supporting plate are equivalent. The invention solves the problem of low metering accuracy of an impact plate flowmeter.

Description

[0001] technical field [0002] The invention relates to a dynamic measuring instrument for powder materials, in particular to a powder impulse flowmeter with equal head drop. Background technique [0003] At present, in the continuous dynamic measurement of powder at home and abroad, the equipment that uses the impulse flowmeter is the punching plate flowmeter. Compared with tape scales, screw feeding scales and ring scraper scales, it has the characteristics of simple structure, good sealing, convenient installation and low cost. However, the punching plate flowmeter is difficult to control because the blanking height and the force point of the detection plate change with different material flow rates. At the same time, the initial speed of the material entering the punching plate flowmeter cannot be constant. This kind of flowmeter is actually based on specific material experiments. Calibrated way to measure. Therefore, the punching plate flowmeter has the problems of u...

AI Technical Summary

Problems solved by technology

[0004]The present invention aims to solve the above-mentioned problems existing in the existing powder material dynamic measuring equipment, and provides a relatively simple structure, convenient installation, accurate measurement, and adaptable to material properties. Wide range equal head drop powder impulse flowmeter

Images