Feeder breaker hopper design includes silo shape, bucket volume, drop Angle and feeder. The design adopts the hopper of feeder breaker and the new method of Angle control between inclined plane and horizontal plane and edge Angle control between horizontal plane to eliminate the accumulation of dead material in the bunker. The size design takes into account continuous feeding and compact layout, and the designed silo meets the requirements of the feeder breaker.
Coal crushing is a key factor affecting coal quality. In the early stage of construction, large-scale primary crushing equipment is often used to break coal models once. As the equipment for receiving materials, the design and selection of the silo are very important. The shape and size of feeder breaker hopperare limited by the overall layout, the design is mainly to ensure continuous and uniform discharge and no dead material accumulation, so the design adopts the idea of Angle control between inclined plane and horizontal plane, increase the Angle control between edge and horizontal plane, and set feeder breaker in the lower part of the hopper. On the one hand, the silo evenly feeds the crusher to prevent the silo from popping, on the other hand, the pre-screening module can screen the stone material into the silo, remove the smaller particles in the coal, increase the system productivity and improve the quality of coal. Feeder breaker mainly includes silo, scraper conveyor or apron feeder, crushing unit, drive and other parts. The feeder breaker production process is to put coal directly into the feeder breaker silo via loading equipment or transport equipment, through the conveyor part of the silo to the crusher, through the chain or pa to the crushing chamber for the first crushing, and then through the belt conveyor or directly to the secondary crusher. Storage capacity and flow status are the two basic characteristics of the feeder breaker hopper. There are basically two types of silos according to the flow type: the whole flow type silo (also known as the full flow silo) and the central flow type silo (also known as the funnel type silo or nuclear flow silo). When the material is bent in the integral flow hopper, all the stone materials flow to the discharge port, the material level drops evenly, and the discharge flow is stable and uniform. When unloading the central flow hopper, only the central part of the stone flows to the discharge port, although due to the formation and collapse of the "rat hole" and viscous arch, the discharge flow is unstable, but it has the characteristics of good universality, long life and low cost. feeder breaker silo Choose a central flow type square silo.
Using a loader or truck as a feeder breaker, you can obtain a larger feeding capacity, because the loader or truck feeding operation is intermittent, and the crusher work is continuous, so in theory, the selection of the bucket should ensure that the coal from intermittent to continuous movement of the transition process can be well connected. Bucket capacity selection too large lead to waste of manufacturing materials, and the selection is too small, it affects the normal play of comprehensive capacity, reasonable bucket capacity should be compatible with the loader feeding operation and the productivity of the crusher. Therefore, the design of the bucket is considered from the following two aspects.
feeder dip Angle is an important technical parameter, it is generally believed that square silo as long as the hopper slope dip Angle is greater than or equal to the resting Angle of stone, coal can slide smoothly, but it is not found in actual production. The silo for designing feeder breaker is a rectangular silo diagram. The general design only considers the Angle α (∠EO'E') between the inclined plane and the horizontal plane of the silo ≥ the resting Angle 8 of the stone (due to the friction effect of coal can stay on a surface, the maximum inclination Angle of this inclined plane is the resting Angle of the stone). However, the Angle B between the edge and the horizontal plane (∠AO'A') is ignored, because the Angle B is less than the incline Angle α, so the dead material accumulation often occurs at the corner, resulting in the reduction of storage capacity and uneven discharge phenomenon. In order to eliminate the accumulation of dead material and ensure smooth feeding, it is necessary to ensure that the cutting Angle at the edge B≥ the rest Angle of the stone 8, rather than just α≥8.
The above is the feeder breaker hopper design considerations. We are a professional feeder breaker manufacturer, we have advanced processing equipment and processing technology, with skilled workers and a strong design team and after-sales service team. Welcome people from all walks of life to visit our factory and research.