Application and Precautions of Zhengda Polyacrylamide in Coal Washing Plant
Polyacrylamide used in sewage treatment in coal washing plants is a special anionic polyacrylamide. Now, in order to protect the ecological environment, many coal washing plants use polyacrylamide without pollution. How to use polyacrylamide? ? What do we need to pay attention to? Zhengda will explain it to everyone.
How to use polyacrylamide in coal washing plant:
One. Dissolved: Use a non-ferrous container. Water with a water temperature of 60 ° C or less, while spraying water, the flocculant for washing coal is slowly and evenly sprinkled in the container, so that the flocculating agent for coal washing is fully stirred in the container together with water, and can be used after continuous stirring for 50-60 minutes. The speed of the leaf line depends on the container.
two. Add: Dilute the special flocculation agent for washing coal and dilute it with water. The concentration is between 0.02 and 0.2%, and the flow rate is evenly added to the coal slurry water by the valve. (The concentration can be directly prepared between 0.02 and 0.2%. The solution).
Precautions when using PAM polyacrylamide:
1. If it is improperly handled, it will appear that the more difficult floc suspended matter hangs on the surface of the water. It should be filtered or slowly waited for dissolution before use, without affecting the use effect.
Second, the amount of addition should be moderate, too much or too little can not play an obvious flocculation effect, the user should adjust the dosage according to the different conditions of coal slurry water quality, water flow speed and washing amount.
Third, the use of flocculant when the use of less, the effect is not satisfactory, but the increase in the amount of the appearance of drawing and other disease, can reduce or increase the use of flocculant solution concentration, increase the flow method, increase the amount of flocculant. Or the post-addition of the flocculant can be used to solve the above-mentioned disease by lengthening the mixing time of the flocculant and the slime water.
Have you learned? This is a simple method and precautions for polyacrylamide in coal washing plants.
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