The compost trommel screen in different areas have different names, in some areas in the south called cage screen, cage type rolling Jane screen machine and so on, the compost trommel screen can not only be used to screen the powder material, but also can screen filter slurry material, for example, sand production enterprises, the use of rolling screen sand and stone into fine sand, coarse sand, soil, stone. Coke production enterprises, the use of rolling sieve coke into coke block, coke, coke end. To meet the user's use requirements. The compost trommel screen is compared with the vibrating screen, the vibrating screen is easy to damage, large maintenance, complex structure, maintenance trouble, vibration, low screening efficiency, short service life and other shortcomings. The compost trommel screen has the advantages of high efficiency, simple structure, convenient maintenance, cheaper price and long service time.
1. Sieve hole is not easy to plug.
2, stable operation, low noise.
3, simple structure, convenient maintenance.
4, the machine has high reliability, less one-time investment.
5, the use of special screen, screening efficiency is high, long service life 6, the equipment is mainly composed of motor, reducer, roller device, frame, sealing cover, inlet and outlet. Rolling screen packing
Tilt mounted on the rack. The compost trommel screen motor is connected with the drum device by the reducer through the coupling, and the drum device is driven to rotate around its axis. When the material into the roller device, due to the inclination and rotation of the rolling screen device, the material on the screen surface is turned over and rolled, so that the qualified material (under the screen product) is discharged through the round screen of the rolling screen, unqualified material (on the screen product) is discharged through the end of the rolling screen. Due to the material in the roller turning, rolling, so that the material stuck in the sieve can be ejected, prevent the sieve plugging.
Ii. Some frequent failures, failure cause analysis and solutions:
1> Roller sieve supporting wheel shaft deformation and bearing often damaged, (half a year to replace 6 shaft, bearing 12 disks, two supporting wheel); Failure cause analysis: The shaft of the rolling screen support wheel is deformed and the bearing is often damaged. The deformation occurs due to the maximum torque that the shaft can bear, V, the weight of the rolling screen + the impulse under coke + the vibration force generated when the rolling screen rotates, resulting in the bearing damage.
Solution: In order to solve the hidden danger of the rolling sieve supporting wheel shaft deformation and bearing damage, we used to increase the size of the shaft, so that the shaft can bear more torque, the torque generated when the compost trommel screen is running.
2, rolling screen 6 beams often damaged fracture (half a year to replace the girder, welding repair girder five times) fault analysis: rolling screen 6 beams often damaged fracture, 6 beams are made of 12# channel steel spell out, (1) rolling screen rotation by the torque force channel steel prone to fracture. (2) Coke wear channel steel is easy to fracture.
Solution: In order to solve the hidden danger of girder wear and fracture, we replace the channel steel of girder material 12# with the seamless tube of 10mm rear wall of (1)100. The part prone to coke wear is equipped with the rewelding plate of 10mm, so as to increase the service life of the girder.
3, rolling screen support spindle reinforcement cracking, shaft rolling key (repair welding three times in half a year) failure reason analysis: rolling screen support spindle reinforcement cracking, shaft rolling key.
(1) The 10mm steel plate is too thin, and the steel plate will distort and deform when the rolling screen rotates, so that the steel plate and the reinforcement connecting the shaft will crack and disconnect. (2) The torque generated by the shaft is too small, which is easy to produce the roll key.
Solution: In order to solve the rolling screen bearing spindle reinforcement cracking, shaft rolling key. We increase the size of the shaft so that the shaft can bear greater torque. The steel plate with a thickness of 10mm is replaced by a steel plate with a thickness of 20mm. When the rolling screen rotates, the distortion and deformation of the steel plate are eliminated, so that the reinforcement connecting the steel plate and the shaft are not easy to crack and disconnect.
4, screening rolling screen base column girder weld cracking, chute wear fast (bracket girder is 22# channel steel, column leg is 4)200 steel pipe; Interface welds often crack, the average 7 days or so to repair welding once; Chute almost 3-4 days
Failure cause analysis: The welding seam of the column girder of the rolling screen base is cracked, and the chute is worn. There are two main reasons:
(1) The tail of the screening drum is not round and the seam is uneven. When the drum screen runs, it will beat and swing around.
(2) The material is not wear-resistant and wears too fast.
Solution: When remaking the compost trommel screen, the tail of the rolling screen should be round, and the welding joints should be polished and smooth. Rolling screen base beam and shelf are changed into 200 steel pipe and 200 I-beam. After the chute is made, a 10mm nitration alloy plate is added.
Iii. Conditions of use:
1. 2009.6-2014.112#, 3# Use of compost trommel screen: average compost trommel screen supporting wheel 2? Monthly maintenance once, rolling screen 6 beams average 5-6 months maintenance and replacement once, rolling screen support spindle in no reinforcement cracking phenomenon.
2. 2010.8-2014 # 114, # 6 Use of rolling screen: average rolling screen supporting wheel 2? Monthly maintenance once, rolling screen 6 beams average 2-3 months maintenance and replacement once, rolling screen bearing spindle in no reinforcement cracking phenomenon.
Four, installation and production requirements:
Installation of machine:
1. When installing the compost trommel screen, it is necessary to follow the output shaft of the reducer and the rolling screen drive shaft in the same coaxiality.
2, bearing seat, reducer bolts to tighten.
3. The supporting wheel must be installed in accordance with the technical requirements.
