1. Structural features:
Compost trommel screen structure is driven by a cycloid reducer through the chain to turn the drum, the drum has a big tooth ring and two supporting wheel track, by the four supporting wheels fixed on the screen seat to support the drum, the drum outside has a sealing cover to seal it, no dust spillover, flying phenomenon. Due to the uniform rotation of the drum (20 revolutions per minute), the wear of the material on the screen is uniform, and no vibration, stable operation. So the utilization rate of the screen has been greatly improved (generally in more than two years), reducing maintenance costs and reducing operating costs. Compared with the traditional type of roller screen with shaft in the middle of the screen penetration rate is higher, eliminate the middle shaft winding debris phenomenon.
2. Working principle
When the trommel screen works, the raw material is picked up by the sieve until it is close to the top of the drum. The material then falls back to the bottom of the drum under the force of gravity. As it rolls over, the softer parts break apart. The process is repeated, the small size of the material through the screen, the large size of the material through the other end of the roller outlet, to achieve accurate sizing and separation.
3. Containment measures.
Compost trommel screen adopts special blocking device.
Anti-blocking device through the high frequency of small force vibration type hit, with the elastic screen surface, can efficiently clean up the blockage, ensure the qualified material through the sieve smooth, in the wet state of the screen clean, high screening rate, so as to achieve high efficiency, energy saving, environmental protection, is the traditional vibrating screen replacement products. When the ordinary vibrating screen screens the wet material, it is easy to cause the sieve hole blockage, all the raw coal into the next procedure crusher, will cause the crusher overload shutdown, paralyzing the entire production line. The permeability efficiency of screening machine is the key to reduce the operation cost of coal transmission line, and the GT series roller screen can better prevent the screen plugging, to achieve the continuous safe operation of the whole production line.
(1) The roller sieve barrel is long, the screening efficiency is high, and the load of raw coal entering the lower crusher is fully reduced.
(2) Smooth operation, low noise.
The machine adopts chain drive, smooth running, screening process than vibrating screen noise greatly reduced.
(3) Simple structure, convenient maintenance, equipment requirements for the foundation strength of the vibrating screen is relatively low, one-time investment is less.
(4) The machine has high reliability and long service life. Because the roller screen is no vibration compared with the ordinary vibrating screen
Phenomenon, and vibration is one of the main causes of equipment fatigue, easy to damage, so the main engine life of the roller screen is more than 15 years, and the vibrating screen is only about 5 years.
(5) The woven screen mesh is made of 16Mn material, with high strength and good wear resistance. High screening efficiency, service life of more than 2 years
(6) The compost trommel screen is completely sealed, can achieve good environmental protection requirements, in the screening process without any pollution to the environment
