Briquetting machine is the transformation of a powdery or granular product into a larger more convenient size. This is accomplished by compacting the product with a roller press sometimes in the presence of a binder material. The carbon electrode briquette machine can be produced with high or low pressure and can undergo mechanical or thermal treatment according to the characteristics of the processed material, the binder used and the desired end product.
In addition to briquette machine handled by a seasoned operator, many briquette plant managers and owners ponder over improving briquetting and charcoal making techniques. According to both theories and practice, consistent renovation of the propeller of a briquette machine counts most. Operators of briquette machine and briquette plant should get the hang of not only links between briquette density, pressure and temperature, but also the angle of elevation of the propeller front end against high pressure during briquetting, namely, to adjust size of the front end of propeller to produce briquettes with elegant surface and high bulk density. (Note: propeller refers to screw rod, or called forming mold within briquette machine)
Technically, strong friction and pressure come to the front end of propeller during squeezing with raw material. Consequently, the front end will be dented or speckled sparsely. And the front end diameter will be dwindled yet briquettes will not be extruded to some harsh extent or even with briquettes squeezed out but in an incompact way. On this occasion, the propeller shall be removed and inspected about whether the abovementioned situations have occurred to it. To grapple with the issue, alloyed electrodes should be welded on the front end, the latter of which should be further polished. More importantly, the welded and polished size shall be measured accurately in light of the requested clearance between the propeller and sleeve. If the welding work is halted and continued, welding slag should be knocked away, otherwise the ensuing welding layer remains unstable so that the clearance is somewhat altered.
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