rotary drum cooler or cooling machine is used for fertilizer production line used together with the drum drying machine, cooling a certain temperature of fertilizer granules, the drum cooling machine can greatly improve the cooling rate, reducing labor intensity andimprove production and further removal of the water and reduce fertilizer tablets temperature. at the same time this type drum cooling machine can also be used for other powder, granular material in the cooling. it has a compact structure, cooling of high efficiency, reliable performance and adaptability. cooling machine is one of the important machines of the rotary kiln system and its functions are to cool the clinker from the rotary kiln from 1000-1300? to below 200? and to improve the quality and grindability of the clinker.
features of rotary drum cooler:
1. wide usage, can be used for the drying of different materials in powder, granule, strip, lump, large elasticity of operation. output is allowed to have larger fluctuations in manufacturing, but not allowed to influence the quality of the products.
2. simple structure, low malfunction, convenient operation, low cost of maintenance, stable operation.
3. large equipment, difficult to install and remove , low heat capacity coefficient.
4. great capacity of production, can be continuous operation.
the wet materials that need to be dried are lifted to the material hopper via the belt conveyor or the bucket elevator and then enter the charging port via the charging pipe. the charging pipe`s inclination needs to be larger than the natural dip angle of the materials so that the materials can flow to the cooler smoothly. the cooling machine cylinder is a rotating one inclined compared with the horizontal line. materials are fed from the top end and the heat carrying agent flows out from the bottom end by meeting materials with countercurrent contact. in some case, the heat carrying agent will flow into the cylinder with the materials.
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