Roller monitoring device for rotating mill barrels

Abstract

The invention relates to a rolling type monitoring device suitable for a barrel of a rotating mill. The rolling type monitoring device suitable for the barrel of the rotating mill comprises a sensor, wherein a cylindrical stator is fixed on the outside of the sensor; an arc-shaped cushion block is arranged between the front end of the sensor and the inner wall of the stator; a rotor which rotates around the stator is arranged on the outside of the stator; the outside of the rotor is a cylindrical surface; the cylindrical surface is in rolling contact with the barrel of the mill; and the linear speed of the cylindrical surface is the same as that of the barrel of the mill. The rolling type monitoring device can adapt to a working state monitoring principle in a ball mill which is in a rotation working state; and the working state of the ball mill is predicted to solve problems existing in state monitoring of an existing ball mill.

Description

technical field [0001] The invention belongs to the test and analysis instrument of the working state of the mill and the grinding load, which is a kind of vibration signal directly measured from the mill cylinder in the rotating state to judge the grinding concentration, material-ball ratio and filling rate inside the mill. The invention relates to a testing and analyzing instrument for the state of the size, the wear degree of the liner, etc., specifically, it relates to a rolling monitoring device suitable for the barrel of a rotary mill. Background technique [0002] Grinding is the process of reducing the ore particle size continuously by means of the impact and grinding action of the medium (steel ball, steel rod, gravel) in the rotating cylinder of the ball mill and the ore itself, until the useful minerals and gangue minerals are fully dissociated. process. The product quality of the grinding process is highly related to the state parameters such as the filling rate...

AI Technical Summary

Problems solved by technology

However, if the variation range of the pulp concentration is not obvious, the resistance torque of the rotating measuring head will not change obviously; if it contacts with the ball material, the resistance of the measuring head will increase suddenly; the blade type measuring head is also easy to wear; (ZL201410308498.8) same issue

[0008] From the perspective of the patented technology disclosed above, there are three methods for selecting the measuring point. One is to choose to measure the vibration signal or gravity signal from the bearing seat far away from the cylinder; Actual working conditions

The second is to install the sensor monitoring device on the cylinder, and the sensor monitoring device periodically obtains the effective signal inside the cylinder with the rotation of the cylinder; if the grinding condition deviates from the normal state, it is difficult to accurately judge the work of the mill State (such as the detachment point of the ball material, the drop point, the wear amount of the liner, etc.)

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