How to ensure coal briquette machine safety during forcibly feeding process
During forcibly feeding to coal briquette machine, from feeding spiral bottom part to type wheel bite angle this area can be treat as pre-densification zone or pre-compaction zone. The pre-pressure in this zone has big influence on type wheel diameter, forming pressure, machine size and the investment.
On briquette machine adopt tower type or compressibility feeding spiral. Type wheel diameter select 6-60inchs, forming press choice 10000-100000, pre-pressure choice 0.01-100Lb/in, the remaining variables are fixed. When type wheel working speed increased, then the pressing time is shortened. If working speed exceed 20r/min, for some materials, pressing time is a limit factor. Then the smallest type wheel diameter and the relative pre-pressure depend on the required shortest pressing time.
When pre-press increase, then the required type wheel diameter and force decrease, then the briquette machine size, weight and cost also decrease. Although type wheel diameter and force decreased, but if you want to get the same production capacity, then the type wheel power consumption should still keep as before.
Feeding spiral type and axialflow type briquette machine. Along with compression ratio increased and under high pressure, the friction between material and spiral increased, feeding spiral power consumption increased. Briquette machine total consumption is subtotal of type wheel and feeding spiral. Thus, if the production capacity and ball pressure pressure keep constant, total power consumption along with pre-pressure increase together.
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