Buying a good feed crusher will not only shorten the service life of the feed crusher if it is not used properly, but it will also affect the work efficiency and lead to less work.
1. The long-term operation of the crusher should be fixed on the basis of cement. If the working site is frequently changed, the shredder and the electric motor must be installed on the base made of angle iron. If the shredder is powered by diesel, the power of the two should be matched, that is, the diesel power is slightly greater than the shredder power, and the two are The pulley groove is the same, and the outer end face of the pulley is on the same plane.
2. After the crusher is installed, check the tightening conditions of the fasteners of the various parts. If there is looseness, tighten the screws.
3, to check whether the tightness of the belt, the motor shaft and the grinder axis is parallel.
4. Before starting the crusher, first turn the rotor by hand to check whether the claws, hammers and rotors are flexible and reliable. There is no collision phenomenon in the shell. Whether the rotation of the rotor is in the same direction as the arrow on the machine, the motor and powder The lubrication of the machine is good.
5. Do not replace the pulleys in a random manner to prevent the explosion speed from causing the explosion in the crushing chamber, or the speed is too low to affect the working efficiency.
6. After the start of the crusher, it will idle for 2-3 minutes. After the start of the crusher, there will be no abnormal phenomenon and the material will be charged.
7. Always pay attention to the operation of the pulverizer during work, and feed materials evenly to prevent obstruction of boring cars. Do not overload for a long time. If there is vibration, noise, high temperature of the bearing and the body, spraying of material outside, etc., it is necessary to immediately stop the inspection and remove the fault before continuing to work.
8. The crushed material should be carefully inspected to avoid accidents such as copper, iron, stones and other hard objects entering the crushing room.
9, the operator should not wear gloves, feeding should stand on the side of the grinder, to prevent rebound debris hit the face.
10. It is forbidden to feed or pull feed by hand or wooden stick when jamming.
In addition to the correct use of feed mills, it is also necessary to carry out the necessary daily inspections and maintenance of the feed mills to prevent the failure of the mills and extend their service life.
1. Screen repair and replacement Screens are made by thin steel plate or sheet metal punching. When the screen is worn or broken by foreign matter, if the damaged area is not large, it can be repaired by riveting or soldering; if the area is damaged, replace the new one. When installing the screens, the burr-side of the screen should be facing inwards, and the screen should be closely attached to the screen frame. When the ring screen is installed, its overlapping inner layer mouth should follow the rotation direction to prevent the material from jamming at the overlap.
2. Lubrication and Replacement of Bearings After every 300 hours of operation of the crusher, bearings should be cleaned.
If the bearing is lubricated with oil, it is advisable to fill the clearance of the bearing seat by 1/3 when adding the new oil. The maximum number is not to exceed 1/2. Only a few caps of the cover-type oil cup can be screwed tightly before operation. When the grinder bearing is seriously worn or damaged, it should be replaced promptly, and pay attention to strengthen the lubrication; use tapered roller bearings, should pay attention to check the axial spacing of the bearing, so that it is maintained as 0.2-0.4 mm, if any, can be increased or decreased The bearing cover is adjusted at the paper pad.
3, the replacement of claws and hammers. In the comminuted parts, the grinding teeth and the hammers are the consumable parts in the feed crusher and are the main parts that affect the crushing quality and productivity. The crushing tooth and the hammer must be replaced in time. When replacing the teeth with the claw jaw crusher, pull out the disk first. Before pulling out, first open the round nut locking tab on the back of the disc, use a hook wrench to unscrew the round nut, and then use a special puller to pull the disc out. In order to ensure the balance of the rotor's operation, attention should be paid to the replacement of the set when changing gears, and a static balance test should be done after the change so that the grinder can work stably. When tightening the claws, be sure to tighten the nuts and be careful not to miss the spring washers. The qualified parts should be selected when replacing the teeth, and the difference between the weights of the individual teeth should not exceed 1.0.
Hammer mill some of the hammer is symmetrical, when the sharp angle hammer hammer blunt, can be used to adjust the angle of the opposite; if one end of both corners have been worn, you should turn around to use. When adjusting the angle or turning the head, all the hammers should be carried out at the same time. After the four corners of the hammer are worn out, they should all be replaced. Note that the weight difference between each set of hammers must not be large; spindles, discs, positioning sleeves, pins, and hammers are installed. After that, a static balance test should be done to keep the rotor balanced and prevent the unit from vibrating. In addition, due to wear of the pin of the fixed hammer pin and the mounting pin shaft, the pin shaft will gradually grind and the round hole will gradually grind. When the pin diameter is smaller than the original size, the diameter of the round hole is larger than the original size. , should be repaired or replaced in a timely manner.
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