Which pump is best for 85% paraformaldehyde?
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In the process of producing paraformaldehyde, which high-pressure pump is one of the key equipment? Which pump is better from which company?
The author has already mentioned the concentration of the medium, but can you provide parameters such as flow rate and head? This makes it easier for friends to reply
Checked the physical properties and acute toxicity of formaldehyde: LD501600mg/kg (rat oral) Hazardous characteristics: There is a risk of burning when exposed to open flame, high heat or contact with oxidants. It decomposes upon heating to release flammable gases that can form explosive mixtures with air. Powder and air can form an explosive mixture. When it reaches a certain concentration, it will explode when encountering Mars. Combustion (decomposition) products: Carbon monoxide, carbon dioxide. Because I don’t know the craftsmanship conditions of the original poster, I can’t give you any suggestions.: 1. Large flow and high head - you can consider chemical process pumps, mainly imported brands or domestic big-name centrifugal pumps + plan 11 + 53 or 52 and other options 2. Small flow and high head - eddy current pump 3. The head is not too high - either a positive displacement pump or a pneumatic pump can be used
I don’t have much information about the medium of high-concentration formaldehyde. For example, I don’t even know the viscosity. I know that the flow rate is 10 cubic meters per hour and the head is 280 meters.