Case analysis of major meteorological disasters in mines Meteorological disasters are unpredictable facts of people. However, the responsible persons at all levels of mining enterprises can learn from the disasters that have already occurred, and prepare for emergency meteorological disasters in various aspects. To deal with all kinds of complex meteorological disasters. For this reason, the cases of major meteorological disasters are listed below. A landslide 2008 August 1, dump Loufan County, Shanxi Province Eagle's Nest iron ore due to multiple heavy rain runoff, leading to dump landslide collapse 8X106 m3 stone soil, resulting in workers and residents below the waste dump 45 people death. After the accident, the State Administration of Work Safety and Administration established an accident investigation team with Shanxi Province. The main reasons for the accident were: 1. The design of the slope angle of the dump site is unreasonable. 2. The flood discharge facilities of the dump site are not perfect. 3. Jianshan Iron Mine has poor management of the dumping site. 4. Improper measures to deal with landslides.
Classification of tablet press: Models can be divided into single punch tablet press, rotary tablet press, sub-high speed rotary tablet press, automatic high speed tablet press and rotary core tablet press.
The sheet shape pressed by the tablet press is initially flat circular, and later developed into shallow circular arc and deep circular arc on both sides, which is for the need of coating. With the development of special-shaped tablet press, oval, triangle, oblong, square, diamond, circular ring tablets followed. In addition, with the continuous development of preparations, due to the requirements of compound preparations and timed release preparations, special tablets such as double layer, triple layer and core coating are made, which need to be completed on special tablet press.
Rotary tablet press is a machine which is made of several pairs of die distributed on the turntable to make a circular lifting movement according to a certain track and press the granular material into tablet through the press wheel. And the stamping rod with the rotary table rotating speed ≥60m/min line press is called high-speed rotary tablet press, this high-speed rotary tablet press has a forced feeding mechanism, the machine is controlled by PLC, has the automatic adjustment of pressure, control the weight of the piece, eliminate the waste piece, print data, display fault shutdown and other functions, in addition to the control of the weight difference within a certain range, Quality problems such as missing Angle and loose lobe can be automatically identified and eliminated.
With the development of market demand, the scope of application of tablet press is more and more wide, no longer simply limited to the suppression of Chinese and Western medicine tablets, more widely suppressed health food, veterinary medicine tablets, chemical tablets: such as mothballs, washing blocks, smurf blocks, art powder, pesticide tablets, food tablets: chicken essence block, isatis root block, divine Qu tea block, compressed biscuits.
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