COAL WASHING EQUIPMENT
Founded in 1999, LUTON GROUP CO., LTD, as a joint-stock enterprise, has over 22 years of exporting experience on manufacturing concrete plants, asphalt plants, self loading mixers, crushers, dry mortar plants,coal washing equipment, and various sorts of construction machinery.
Years of experience and unmatched customers recognition pushed LUTON GROUP to be a technologically innovative enterprise with high-quality products and competitive prices.
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RAW COAL
Raw coal refers to products produced by coal mines. It only manually sorted out the gangue and debris but has not been washed, screened, and processed. Including natural coke and low-quality coal, excluding low calorific value coals (such as stone coal, peat, oil shale, etc.); According to its origin, raw coal can be divided into three categories: sapropelic coal, humic coal, and humosapropelic coal. According to its carbonization degrees, it can be categorized as peat, lignite, bituminous coal, and anthracite.
COAL WASHING
Through the impact of water flow, raw coal with different components and different proportions is separated into different grades with dust and waste rock being removed, and ash and sulfur content being reduced. This is called coal washing.
WHY WASH COAL?
Coal washing is an indispensable process in coal deep processing. The coal exploited directly from the mine is called raw coal. The raw coal is mixed with many impurities during the mining process, and the quality of the coal is also different. The coal with low internal ash content and high internal ash content is mixed Together. Coal washing is an industrial process that removes impurities from raw coal, or classifies high-quality coal and low-quality coal.
The products produced after the coal washing process are generally divided into gangue, medium coal, grade B clean coal, and grade A clean coal. The finished coal after the coal washing process is usually called clean coal. Through coal washing, the transportation cost of coal can be reduced, and the utilization rate of coal can be increased. Clean coal is generally an energy source that can be used as fuel, and clean coal from bituminous coal is generally used for coking. It needs to remove sulfur, impurities and other industrial processes to meet the standards for coking.
COMPLETE SETS OF COAL WASHING EQUIPMENT
The over ground coal processing system consists of main links such as coal receiving, screening, crushing, coal preparation, storage, and loading. The coal washing process mainly includes the following:
1. After crushing and screening, the raw coal is loaded into the hopper, and the coal below 80mm is sent to the jig through the belt conveyor, after jigging, the clean coal, medium coal and gangue are separated; the gangue and medium coal are discharged through the elevator. The clean coal are sent to the linear dewatering screen through water, it is collected and transported to the site for storage through a belt conveyor.
2. The discharged water beneath the clean coal linear dewatering screen flows into the pulverized coal recovery screen. After dewatering the pulverized coal over 0.3mm, it enters the centrifuge for drying, and then the clean coal which is mixed with other clean coal is transported to the clean coal site for storage through a belt conveyor.
3. The slime water below 0.3mm flows out of the pulverized coal recovery screen. After the slime water is floated, it enters the thickening tank for precipitation, and then it is dehydrated into the tailings slime by the filter press, after which it is transported to the site for storage by a belt conveyor.
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