The problem of compound fertilizer dust

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This is a common problem in current fertilizer plants. Dust arises mainly from three aspects: the processing and transportation of raw materials; leaks from the gas generation furnaces; leaks from the boiler itself; and dust generated during fertilizer production and packaging processes. We look forward to excellent solutions from everyone!

The feeding port must be well-sealed, and dust removal facilities should be in use; it is advisable to use automatic bag cutting. Dust removal should be installed at the outlet of chutes where there is a height difference. The mixer must be properly sealed, and the granulator is suitable for slightly humid operating conditions

This problem is indeed troublesome. I think the solution should aim for a simple setup with low operating costs. The approach I have in mind is the water washing method: an exhaust fan connected to a spray tank, followed by a sedimentation tank, a clean water tank, and then a water pump to facilitate circulation. Are there any compound fertilizer manufacturers that use this method?

This problem is indeed troublesome. I think the solution should aim for a simple setup with low operating costs. The approach I have in mind is the water washing method: an exhaust fan connected to a spray tank, followed by a sedimentation tank, a clean water tank, and then a water pump to facilitate circulation. Are there any compound fertilizer manufacturers that use this method? Your plan is by no means simple – how large should the sedimentation tanks and clear water tanks be, how much sludge will be deposited, and how can water balance be achieved? Exhaust fan---cyclone dust removal----drying and washing tower: This process is more reasonable, right?

I agree with what was said on the 5th floor. At present, the washing method using water is the preferred approach for dealing with compound fertilizer dust; if the problem of dust absorbing moisture can be solved, then dry dust removal methods could certainly be considered

From an environmental protection perspective, the method used on the 5th floor does not meet the requirements for environmentally safe emission of waste gases. In my opinion, a system that involves exhaust fans, cyclone dust removal, dust collection tanks, water spraying (with a filtration system if possible), and subsequent emission would be more effective. As for sedimentation tanks and clean water tanks, their size can be determined based on production volume. Another issue to address is the availability of space; it would be best to have a location where water treatment facilities can be installed, so that all water can be collected, treated, and reused for spraying. This approach would help address both the dust problem and the wastewater issue, thus truly solving the environmental problems

First, pass through cyclone dust removal, then use a Venturi washer

First, you need to determine what manufacturing process is being used, and then choose an appropriate solution based on that process For example, in the case of a disc granulator, the air drawn out after connecting a cyclone dust collector with an exhaust hood is absorbed by a water scrubber to remove dust.

It is crucial to ensure that the ingredient mixer is properly sealed; in addition, the height difference between the conveying equipment should be reduced