2020-07-08 06:57:54 1164
The impact crusher industry shares the achievements of technological development. Compared with the hammer crusher, the impact crusher has the following main obvious technical advantages
1 It can effectively process materials with high moisture content and prevent the blockage of the crusher.
When the water content of the processed material is too large, the feed chute and impact plate of the impact crusher can be equipped The heating device prevents the sticking of materials. The impact crusher does not need to be equipped with a bottom screen to effectively prevent clogging. The hammer crusher cannot use heating to prevent the sticking of materials, and must be equipped with a bottom screen, which increases the blockage. The possibility.
2The impact crusher is suitable for both soft materials and very hard materials
The plate hammer of the impact crusher adopts a mechanical clamping structure It is firmly fixed on the rotor and has a large moment of inertia when rotating with the rotor. Compared with the hammer crusher (the hammer head is in a hanging state), the rotor of the impact crusher has greater momentum and is suitable for crushing harder materials At the same time, we have low energy consumption.
3 It is convenient and flexible to adjust the discharge particle size, and the adjustment range is wide.
The impact stone crusher can adjust the discharge particle size in a variety of ways , Such as adjusting the rotor speed to adjust the gap between the impact plate and the grinding chamber. The gap adjustment can be adjusted mechanically or hydraulically, and the hydraulic adjustment system can be easily adjusted through the local operation button or the range control system. And the hammer The adjustment of the discharging particle size of the type crusher can only be achieved by replacing the bottom sieve plate.
4 The wear of the wearing parts is higher than that of the hammer crusher. The utilization rate of small metals is higher.
Reaction type The wear of the hammer of the crusher only occurs on the side facing the material. When the rotor speed is normal, the feed will fall to the surface of the hammer (blow surface), and the back and sides of the hammer will not be worn. Even if it is facing The wear on this side of the material is also very small. And the bottom grinding rod is also easy to replace. The metal utilization rate of the impact crushers plate hammer can be as high as 45% and 48%. The hammer head of the hammer crusher is in a hanging state, and the wear occurs on the Front and back and side, compared to the blower, the hammer head wears more serious, and the metal utilization rate of the hammer head is only about 25%. And the rotor body itself may also be worn. The bottom screen of the hammer crusher is seriously affected by wear, and the grid All need to be replaced, and the work of replacing the sieve plates is also more complicated.
5 The replacement of spare parts is simple and the maintenance cost is correspondingly reduced.
Only 6 plates are installed on the rotor of the impact crusher The hammer can be easily replaced with the special tools provided by HAZEMAG. It only takes one shift to replace a set of hammers. The replacement of the grinding rods in the bottom grinding cavity also only takes tens of minutes, which greatly reduces The time and cost of overhaul and maintenance. There are more than 100 hammer heads in the hammer crusher. It takes a lot of time and manpower to replace a set of hammer heads, and the cost of overhaul and maintenance is high. The replacement of the bottom screen is also extremely troublesome. Impact crusher Machine technical features and advantages
a Crushing mechanism
The single-stage impact crusher for dry-process cement process limestone uses impact kinetic energy to crush the material along the joint plane, and the discharge is in a uniform cubic shape.
After the bulk material enters the crushing cavity between the counterattack plate and the rotor, the kinetic energy is obtained by the rotation of the rotor part, and the counterattack plate and the rotor are repeatedly hit between the counterattack plate and the rotor. The cavities are crushed step by step to reach the required discharge particle size.
The multi-stage impact cavity of the impact crusher, There is enough crushing space for the crushing of large pieces of material. The angle of the impact plate of the impact crusher can be adjusted to ensure that the material is at a suitable angle when the impact plate and the rotor are repeatedly impacted, which can effectively improve the crushing efficiency. The level of impact crushing process can effectively reduce the energy consumption in the crushing process.
The impact plate adjustment system of the impact crusher also doubles as the overload protection device of the whole machine. When foreign objects (such as iron blocks, etc.) After the broken pieces enter the crusher, the counterattack plate can automatically bounce back and let foreign objects pass through the crusher to prevent foreign objects (such as iron blocks, etc.) or unbreakable objects from damaging the equipment.
Counterattack The plate hammer of the type crusher is firmly fixed on the rotor, so the starting torque of the crusher is small, the dynamic balance performance of the rotor part is easy to control, the disturbance force is small during the operation, and the starting is stable.
The frame part is a three-part structure, and only need to open the rear casing of the crusher, you can perform maintenance and repair operations such as replacing the impact plate liner of the hammer.
Exchange of parts of the impact crusher It has strong performance and fewer varieties of wearing parts, which is convenient for the purchase and management of spare parts.
The hydraulic opening device is used for the opening and closing of the casing, which can effectively reduce the maintenance labor intensity, improve maintenance efficiency, and shorten maintenance Working hours.
The monitoring system of the impact crusher can monitor the running status of the crusher at any time, and the monitoring signal can be interlocked with the main control system to ensure the safe and reliable operation of the machine.
The driving system of the impact crusher adopts the method of the motor mechanical coupling V-belt crusher, which can effectively improve the motor starting performance and enable the motor to start and run smoothly. The belt drive mode can provide double overload protection Function, the motor power required by the drive system is low, which greatly reduces operating costs. This drive scheme is a safe and reliable drive scheme with economical, practical performance and excellent performance.
The impact crusher has a special working mechanism and structural design characteristics. In terms of performance characteristics, the impact crusher has obvious technical advantages over the hammer crusher.
1) The discharging particle size is uniform, the discharging is in the shape of a cube, and the content of fine powder and dust is low, which is especially suitable for the operation of vertical mills.
2) Low operating cost and low investment cost.
The total weight of the impact crusher is lighter than that of the hammer crusher, with small dimensions and low dynamic and static load values, which can effectively reduce civil construction costs. At the same time, the required motor power is low, which can effectively reduce The equipment consumes power and reduces equipment operating costs.
3) The impact crusher has a long service life and low long-term operating costs.