Ore pulp liquid level measuring device and liquid level measuring method

Abstract

The invention discloses an ore pulp liquid level measuring device and a liquid level measuring method. The device comprises a detection pipe, wherein a flat film pressure transmitter and an inflation assembly are detachably connected to the top and the side of the detection pipe respectively, and a pulp inlet is formed in the bottom of the detection pipe; and a plurality of exhaust ports which are uniformly distributed along the circumference of the side wall of the detection pipe between the slurry inlet and the inflation assembly are formed in the side wall of the detection pipe. The device is advantaged in that air pressure in the detection pipe and pressure intensity and balance generated by the ore pulp at the exhaust port are utilized, the air pressure change reflects the change of the ore pulp liquid level, and the ore pulp liquid level is detected by measuring the air pressure, so the floating ball is prevented from being corroded and attached by the ore pulp, and measurement precision is higher; the flat film pressure transmitter is used, through a flat film structure, the contact area with a medium is increased, the temperature range is wide, the overload capacity and corrosion resistance are high, transmission is high in stability, the anti-interference capacity is high, and measurement precision is higher.

Description

technical field [0001] The invention relates to the technical field of pulp liquid level measurement, in particular to a pulp liquid level measurement device and a liquid level measurement method. Background technique [0002] In the non-ferrous metal industry, 90% of minerals are processed by flotation process, and the importance of flotation process to the entire mining production is self-evident. The slurry level is one of the main factors affecting the flotation effect, so its detection and control is very critical. [0003] At present, some domestic slurry level detection devices (such as a new type of slurry level detection device shown in CN 212030685 U, and a slurry level detection device shown in 205691205 U as the authorized announcement number), basically all It is to put a float into the pulp, and use various sensors to detect the displacement of the float to measure the change of the pulp level, but this cannot solve various problems encountered in the detectio...

AI Technical Summary

Problems solved by technology

[0003] At present, some domestic slurry level detection devices (such as a new type of slurry level detection device shown in CN 212030685 U, and a slurry level detection device shown in 205691205 U as the authorized announcement number), basically all It is to put a float into the pulp, and use various sensors to detect the displacement of the float to measure the change of the pulp level, but this cannot solve various problems encountered in the detection process: 1. Corrosion and adhesion of the pulp, Can affect device activity and measurement accuracy

2. In order to deal with the sticking of the device caused by the adhesion of the slurry, it is necessary to add a flushing device, which causes inconvenience

3. During flotation beneficiation, the stirring of pulp and the floating of air bubbles will cause fluctuations, resulting in large fluctuations in measured values

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