2. Grindstones containing high levels of sulfur and other harmful components should be disposed of after disposal.
3. Dry coarse tailings (grind stone coal) transport and stacking methods are: use of bucket or bin cone tailings in dump tub heap; automatic roll transport by rail to the tailing dump the tailings; The tailings are transported to the tailings below the ropeway by aerial ropeways; the tailings are transported by moving belt conveyors to the tailings yard of the open fan-shaped bottom.
(II) Utilization of tailings and vermiculite 1. Coal gangue can be used for power generation, producing cement, grinding stone bricks, non-burning bricks, hollow blocks, building Taoshu, light aggregates, filling materials, recycling kaolin , and producing rock wool. Production of agricultural fertilizers, recovery of pyrite, etc. The specific utilization is shown in Table lG420124.
     2. Recycling energy. Coal calcite has a calorific value of about 800 ~ 8000 kJ / 峙. It also contains more than 10% of unburned charcoal in fly ash and boiler slag, which can be directly recovered from charcoal or used to fire bricks. Certain organic wastes can be used to produce biogas to recover energy through certain ingredients.
     3. Solid waste often contains a certain amount of fertilizer and trace elements of plant growth, and has the function of improving soil structure. For example, silicon, calcium and other components contained in coal-sparing stone after spontaneous combustion can enhance the lodging resistance of plants. It acts as a silicon-calcium fertilizer; the fly ash is shaped like soil and has good gas permeability. It not only improves the acidic or standing soil and saline-alkali soil, but also improves the surface moisture of the upper layer of the soil, as well as promoting ripening and fat retention.
The stone mill flour preserves the original flavor of the wheat. All kinds of pasta made with the milling flour mill are flexible, rich in wheat fragrance and higher in nutritional value. It is a healthy and healthy food of natural green. From wheat input to flour milling machinery to flour production, the flour processing industry's production process can be roughly divided into four steps:
The first step is to clean up the impurities. Wheat into the high efficiency combination grain screen, using a plane rotary screen to remove the soil in wheat, the use of magnetic separator to remove metal impurities, the use of gravity classifier to remove stone and inferior wheat.
Second step cleaning and drying. The wheat is added into the wheat washing machine, and water is injected and dried to further clean the impurities.
The third step is to moisten the wheat. The wheat will be washed again into the wheat machine warehouse, moistening for about 10 hours (wetting 1%).
Fourth steps to make powder. The cleaned wheat was put into the grinding machine, and after repeated grinding, the wheat bran and flour were separated.
The low speed grinding characteristics of the mill Flour Machine also maintain the molecular structure of the flour without any additives. When the noodles are boiled, the color of the noodle soup of the flour is pale yellow, and the other flour noodle soup with additives is white. Long term consumption is beneficial to the human body.
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