ZENITH roller crusher use and maintenance

ZENITH roller crusher use and maintenance

Roller crusher is one of the most widely used types of crushing. The use of roller crusher and daily maintenance is very cumbersome. Today we have summarized the details of the roller crusher from feeding to maintenance.

  • (1) Regardless of the manner in which the roller crusher is fed, a reliable rust removal device must be provided to prevent other chores from entering the crusher.
  • (2) The roller crusher must be started at no load. Before starting, the system of the roller crusher must be inspected and the retained material in the crusher must be removed.
  • (3) Check the oil level in the main and auxiliary transmission gearboxes to ensure sufficient oil supply.
  • (4) If the crusher is deactivated for a long time, or is started for the first time, the large pulley should be turned by hand for 2 to 3 weeks beforehand to confirm that the machine is running freely, and then the motor “drag” several times, when the motor rotates in the correct direction. , can officially start the crusher.
  • (5) The crusher is started to reach the normal speed, and the feeding can be started without abnormality.
  • (6) Regular sampling to check whether the particle size of the crusher meets the requirements. The spacing of the crushing rolls can be readjusted if necessary.
  • (7) When the machine is shut down normally, it is necessary to stop the feeding beforehand, and all the materials in the standby can be stopped after the crusher is removed.
  • (8) When changing the strength, particle size or crushing ratio of the crusher material, the nitrogen pressure of the buffer cylinder should be reset. The amount of pressure is moderate to meet the needs of the crushing roller pressing force. Excessive compression forces can cause increased wear and increased power consumption. Too small a pressing force will increase the super-grain of the crushed product and cause the active crushing roller to exhibit frequent vibration. The buffer cylinder nitrogen pressure is used in the range of 1.5 to 4 MPa.
  • (9) The main and auxiliary transmission gearboxes of the crusher are lubricated with gear oil, and the lubricating oil in the tank should be replaced in time during summer and winter. According to the design requirements, HL30 gear oil (SY1103— 77) is used in summer and HL20 gear oil is used in winter.
  • (10) The bearings of the upper and lower crusher roller translation linkages of the crusher are greased and lubricated. The design requires the use of No. 2 or No. 3 calcium-based grease. The oil cup cover should be tightened one week for each week of normal production to inject grease.
  • (11) Maintenance and repair If you need to open the cover of the main and auxiliary drive gearboxes, you must replace the rubber seals and apply a layer of sealant evenly on the static seal surface before reinstalling to prevent oil leakage on the seal surface. oil.
  • (12) After repairing the crusher, when reassembling the upper crushing roller and the shell coupling, the round nut and the coupling bolt should strictly control the tightening torque. The value is: crushing roller round nut 600N·// 1; Clamping coupling high strength bolt 450N & rsquo; m. When tightening the clamp coupling bolts, it is necessary to pay attention to the sequence. The diagonal bolts should be tightened first, then the intermediate bolts should be tightened, and the gap between the two sides of the joint should be uniform.

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