1. Appropriate adjustment of hammer-sieve clearance: Applying the different characteristics of friction force between material and screen surface, the efficiency is improved by adjusting hammer-sieve clearance, increasing hammer-sieve speed difference between material and hammer. However, in the process of crushing consumption, the need for hammer-sieve clearance is often adjusted because of the different sieve holes and raw materials; in the crusher, the initial work and working section of the crusher are often adjusted. After time, the particle composition in the inner chamber of the crusher will also change; in the parts of the crusher, the hammer is easy to wear, and after the front end of the hammer is worn, the gap between the hammer and the screen will increase, and the output will fall, which is difficult to endure.
Of course, in order to meet the demand of production test of a crusher, the suitable hammer-sieve clearance and suction for a certain raw material, a certain sieve hole can obtain high crushing efficiency data in a short time without considering the service life of the sieve and hammer. However, in the consumption of feed crushing, this kind of specific measurement data and data presented under the condition of the working experience of the operator are presented. The technical content of the crusher itself is different. People who have rich experience in operation and their labor also need high cost of application. After the wear of the hammer, the clearance between the hammer and the screen increases, the friction decreases, and the crushing efficiency decreases.
2. Reasonable application of the back burr of the screen: Punching the hair side of the screen into the screen can increase friction, but it will not be long before the burr of the screen hole is polished, the efficiency will be lost. The durability time is about 30 minutes to 1 hour
3. Increase suction: add negative pressure to the crusher system and absorb the material attached to the inside and outside surface of the screen, so that the friction of the material on the outside of the screen increases, and it can also increase the hammer and material hammering speed difference, but the increase of suction will also increase the wear of the hammer and screen, and the efficiency is not durable. At the same time, the power consumption of suction will also increase.
4. Place a rubbing board in the crusher: the rubbing board has the function of blocking material ring, but its function is limited. First, the teeth of the rubbing board act on the front end of the hammer, the friction surface is small, and the wear of the hammer is also durable. Second, the rubbing board occupies the wrap angle of the sieve, and the area of the rubbing board is too large and the output of the sieve area is too small.
5. Adopting scale sieve technology: there are many small protrusions on the surface of scale sieve, which can strengthen friction. Scale sieve can increase the sieve area without occupying the wrap angle of the sieve, which is better than the washboard. However, the small protrusions of scale sieve are easy to wear and tear, the price is more expensive and the implementation is very difficult. After calculating the increased output and offsetting the cost of sieving, the benefit is not obvious.
6. Using thin hammer technology: thin hammer has narrow profile (below 4mm), its principle is that it is not easy to stir up materials, and it is not easy to produce the tendency of material rotating at the same speed with the hammer. Under normal conditions, after using thin hammer in the same type of crusher, the output can be increased by about 20% on the original base. The thin hammer technology is comparable effective and very shady, which is very conducive to various crusher products. Sales work, especially in the determination of production of crushers, produces a short-term favorable condition for crusher consumers, and it is easy to purchase other products with ineffective technical characteristics.
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