2.1 material impact on the performance of the mill roller mill production requirements for materials, mainly in the grindability and granularity. Hardness of materials, such as high-silicon materials grindability poor, in order to achieve the qualified raw material, the material is bound to extend grinding time, vertical grinding mill to increase circulation models, the material can not be discharged within the mill, only to drop production run; Also in the feed size is also required, generally feed particle size below 80mm, 30min more than half of the best, 80: min material is best controlled at about 5%, otherwise it will affect the mill output. Material particle size is too large, it will increase the number of vertical grinding mill, vertical mill circulation increased by the new technology, high-pressure, hard grind, but also caused a large vibration, run imbalance. So according to the actual situation of the manufacturers of raw materials, according to the material and size of grindability etc., control the operation of the mill, so as not to affect production. My company produced YSM series vertical mill, with a small footprint, high grinding efficiency, low running costs, low investment ratio and so on. Welcome to inquire! Slag concrete slag powder processing mill stand to play a new value is reflected in the building materials industry, after grinding mill stand, adding a certain amount of cement and other cementitious materials, through mixing, forming and steam curing can be made from a new type of slag powder brick. Now the market is most scarce wet milled slag concrete, concrete activity than ordinary cement, sand and gravel composition higher. Wet milled slag concrete is a water residue and activator (cement, lime and gypsum) on the wheel grinding machine milled into the mortar with water, mixing with the coarse aggregate made. In addition, the slag powder can be used as insulation filler slag vertical mill, becoming instead the material diatomite, play the new value of the slag, saving the cost of investment in the creation of higher economic efficiency. The new technology of vertical mill | vertical roller mill | Sheng Yu Machinery lowest price offered by Xinxiang Yu Sheng Machinery Co. Xinxiang City, Yu Sheng Machinery Co., Ltd. (www.xxshengyu.com) strong, credible, Henan Xinxiang industrial boilers and accessories industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Sheng Yu Machinery and you hand into the brilliant, for a better future!