The roll crusher(jaw crusher) is compression type crusher, and it is made up of roller, bearing, adjusting device and driving device etc.
How does roll crusher adjust the output granularity?
There are adjusting devices (wedge or gasket) between two rolls, with adjusting bolts fixed on the top of wedge. When adjusting bolts hang up wedge, the wedge will drive moving roll away from fixed roll. Roll crusher crushes using compression, with two rolls rotating about a shaft, towards the gap between the rolls. The gap between the rolls is set to the size of product desired, with the realization that the largest feed particle can only be 4 times the gap dimension. The particles are drawn into the gap between the rolls by their rotating motion and a friction angle formed between the rolls and the particle, called the nip angle. The two rolls force the particle between their rotating surface into the ever smaller gap area, and it fractures from the compressive forces presented by the rotating rolls.
Usually, these crushers will have teeth or raised forms on the face of the roll. Roll crushers used for minerals and metal ores have smooth faced rolls.
The machinery manufacturing methods of Hongxing roll crusher and rod-teethed crusher has always been a mystery in machinery manufacturing industry. Hongxing roll crusher has been awarded three national patents. Now, let our experts share their patent technology with us.
First of all, driving system works like this: two motors drive rollers through triangle belt transmission. The two rolls force the ore particles between their rotating surface into the ever smaller gap area, and it fractures from the compressive forces presented by the rotating rolls.
Secondly, the granularity out of the equipment can be adjusted. The particles are drawn into the gap between the rolls by their rotating motion, a wedge block formed between the rolls and the particle, called adjusting device.
Finally, the transmission part should be installed safety cover by actual requirements for safety.
Toothed roll crusher have teeth on the face of the roll, and it is designed with high capacity. The connecting method about motor and speed reducer adopts hydraulic coupler. The equipment is mounted with overloading protective device to ensure operation. The gap width between the rolls can be changed by hydraulic adjustment system. Centralized lubrication system can lubricate all parts. Tooth design optimized.
Dust is a problem continually affects the production efficiency of roll crusher in daily use or maintenance process, now we are analyzing this question.
In order to reduce dust caused by air leakage, we often water the entrance when the material is dry in the actual production which intensify the filter bag burnt and feeder blockage. When the dust enters into the dust collector pipe, the bend at the inlet increases system resistance and the bend parts are susceptible to be worn and blocked by dust. After being rained or watered, broken material will be of high moisture, the dust particles are thicker than that of dry materials, the bag filter are easy to be burnt and the feeder is easy to plug, which result in bag filter ventilation resistance substantially increased, ventilation capacity decreased and dust aggravated. Too much stoppage in crusher bag house and component parts not only affect the normal deducting, but also increase the maintenance workload of the equipment.
Portable crusher : http://www.ore-machine.com/mobile-crusher.html
Impact crusher : http://www.best-crushers.com/impactcrusher.htm
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