An electromagnetic multi-chamber tube mill expansion belly detection device and pre-expansion belly control method

Abstract

An electromagnetic multi-chamber tube mill expansion belly detection device and a pre-expansion belly control method relate to the tube mill detection device and the technical field. The detection device includes a U-shaped magnet (6), a magnetic conductive plate (12) and a detection head (14). Set on the lower side of the opening of the U-shaped magnet (6), the lower end of the magnetic guide plate (12) is fixedly connected with the detection head (14), the lower end of the detection head (14) protrudes from the detection port (4), and the U-shaped magnet (6) A set of magnetic coils (10) connected to a power supply (7) is wound on one vertical part, and an induction coil (11) connected to a detection circuit (9) is wound on the other vertical part, and the detection circuit (9) is connected to an external signal A processing module, the signal processing module is connected to the control system. The detection head (14) pushes the magnetic guide plate (12) into the opening of the U-shaped magnet (6) and changes the magnetic group to detect the expansion state of the tube mill and adjust the work of the tube mill in real time, so that the tube mill The machine works in the pre-expanded belly shape in the early stage of bloated belly.

Description

technical field [0001] An electromagnetic multi-chamber tube mill expansion belly detection device and a pre-expansion belly control method relate to the tube mill detection device and the technical field. Background technique [0002] Tube mill is a very important fine grinding equipment in modern industry, widely used in the fields of grinding production in building materials, metallurgy, mineral processing, electric power and chemical industry. Large tube mills generally have multiple chambers, and their production capacity is very high. When the barrel of the mill is divided into two, three or four chambers of different lengths with partition plates, it is called a multi-chamber tube mill. The difference between the multi-chamber tube mill and the short tube mill is that its length is 2-7 times larger than the diameter, and the time for the material to pass through the tube mill is longer, the product fineness is uniform, and the crushing is relatively large. In the mul...

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Problems solved by technology

The bulge of the tube mill is very harmful. The bulge not only causes the tube mill to lose (or reduce) the grinding effect on the ore, but also destroys the stable work of the grinding, and the treatment of the bulge will also cause the concentration of the ore to follow-up operations. and fineness fluctuations affect the normal operation of follow-up operations; in addition, severe belly swelling will cause tube mills, mine feeders, sand return boxes, bearings, gears, etc. to be damaged by impact loads

After the belly of the tube mill is expanded, it is generally treated by stopping the supply of mineral materials and increasing the supply of mineral water. When the phenomenon of belly swelling is serious, more complicated methods such as high-pressure water and manual unloading of the mill are used.

Belly swelling seriously affects the production efficiency of the tube mill

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