Suspension roller disc grinding machine

Suspension roller disc grinding machine (Fig. 1), also known as Raymond mill, belongs to the disc non-moving disc grinder. The plum blossom frame 1 is suspended with 3-5 rollers, which are driven by the transmission device to revolve around the central…
Purification of drinking water

For standardized water that cannot meet the quality of life, there are three levels of water purification treatment measures. In general, the water needs to be clarified (including precipitation, filtration) and then disinfected. When the turbid water is treated by a simple n…
Salt mining

    First, the type of salt mining ship and its choice
According to the working principle of the mining mechanism, the salt mining ship has the types of suction type, chain bucket type, shoveling type and grab type (Fig. 1). The salt lake soli…
Coal tar and wood tar

(1) In the case of dry distillation coal , shale , peat and wood, various tars such as coal tar (high temperature and low temperature), shale oil, peat tar and wood tar can be obtained. The composition of tar is generally n…