Hammer crusher is the most common of stone crushing equipment. It is also called hammer mill. It has high production capacity, low energy consumption, simple structure, reliable quality, easy maintenance, etc.
The casing of the hammer crusher is composed of a lower body, a rear upper cover, a left side wall and a right side wall, and all parts are connected as a whole by bolts. There is a feeding port in the upper part, and the inner wall of the casing is inlaid with high manganese steel lining plates, which is convenient for the replacement of the lining plates after wear. The lower body is welded with carbon structural steel plates. In order to place the bearings on both sides to support the rotor, the bearing supports are specially welded with high manganese steel. The lower part of the casing can be directly fixed on the concrete with anchor bolts, and the rear upper cover, left side wall and right side wall of the casing are all welded with carbon structural steel plates. There is no protective measure between the casing and the shaft, and the leakage of dust is very serious. In order to prevent dust leakage, all parts of the casing and the shaft are provided with shaft seals. In order to facilitate maintenance, adjustment and replacement of grate bars and hammer heads, the lower body and both side walls are provided with inspection holes.
Types of hammer mill is mainly used for crushing medium-hard or brittle materials with hardness not more than 300Mpa and 15%
moisture ,like coal,cement,gypsum,alumen,brick,tile,limestone,etc.It has the features of simple structure, big crushing ratio, high production efficiency, uniform particle size, etc. This equipment can be adjusted to reach various discharged granularity as the customers' requests.
The arc-shaped discharge screen is installed under the rotor, the two ends of the grate are installed on the beam, and the grate outside the member is pressed by the pressure plate, and the arrangement direction of the grate is perpendicular to the movement direction of the rotor. The grate gap is formed by the protruding part in the middle of the grate. In order to facilitate material discharge. The gap of the grate gradually expands downward, and at the same time it is inclined to the rotation direction of the rotor.
Motor drives the rotor quickly in the crushing cavity. Raw materials enter the crusher through the feeding inlet and are impacted, cut and ground by high-speed hammer heads. There is a grate under the rotor assemblly, so that materials with size smaller than the grate mesh will be screened out and others are left to be further hammered until they reach the standard size. The size of the final product can be adjusted by changing the grate, the gap between the rotor assemblly and the grate can also be adjusted according to different requirements.
