Settling Filtration Treatment Method of Slime Water in Coal Preparation Plant Based on Flocculation Process
In order to reduce the flocculants and pollutants in the coal slurry water of the coal preparation plant,the flocculation process is introduced,and the coal preparation plant of the Phase I project of the No.4 open-pit mine in the Wucaiwan mining area of Zhundong,Xinjiang is taken as an example to carry out the design of the settling and filtration treatment method for coal slurry water.In order to meet the requirements of slime water settlement filtration treatment in coal preparation plant,the selection of flocculating agents and the preparation of instruments and equipment are carried out before the design method.According to the specific needs of the project,the arrangement of the sludge water settlement filtration treatment device in the coal preparation plant is carried out.Under normal circumstances,the settlement filtration treatment device should be arranged in the order of"mixing-reaction-sedimentation-filtration".The sludge water settlement filtration treatment was carried out according to the specification,and the design of the method was completed.The experimental results show that the method designed can not only improve the transmittance and efficiency of the treatment of the middle and super liquid,but also optimize the water quality after the settlement filtration treatment,so that each index of the coal slime water can meet the quality acceptance requirements.
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