Mineral sizers mainly use special wear-resistant tooth rollers to split and break materials at high speed, which is suitable for crushing in coal, metallurgy, mining, chemical industry, building materials and other industries. The mineral sizers of the prior art include the coarse breaking rollers and the fine breaking rollers. The material is broken coarse between the coarse breaking rollers and then enters the fine breaking rollers along the material channel for fine breaking. When the structure is broken, the material may block the material channel when the material flow is large, the material has strong cohesiveness or the water content is high, resulting in the material being difficult to break and separate. Thus, the crushing effect and working efficiency are reduced.
In view of this, our aim is to provide a multi-stage screening integrated dual channel separation mineral sizers to solve the above problems. The above problems are solved by the following technical means: A multi-stage screening integrated two-channel mineral sizers comprises a body arranged successively from top to bottom a wheel screen screening distributor for feeding and a graded crushing structure for crushing materials. The graded crushing structure comprises a coarse breaking pair roller and a fine crushing unit arranged successively along the feeding direction. The fine breaking unit comprises a left fine breaking unit and a right fine breaking unit, and the left fine breaking unit and the right fine breaking unit both comprise a fine breaking roll and a hammer screen plate, and the coarse breaking roll and the fine breaking roll are driven by a motor. A vibration device is arranged between the left hammering screen plate and the right hammering screen plate. The shape of the screen hole on the left and right hammer screen plate is trumpet shaped. The left hammering screen plate is curved near one end of the left fine breaking roll, and the right hammering screen plate is curved near one end of the right fine breaking roll. Beneficial effects: The utility model comprises a multi-stage screening integrated double channel separating mineral sizers, comprising a body, which is successively arranged from top to bottom with a wheel screen screen distributing device for feeding and a graded crushing structure for crushing materials. The graded crushing structure comprises a coarse breaking gear pair roller and a fine crushing unit arranged successively along the feeding direction. The fine breaking unit comprises a left fine breaking unit and a right fine breaking unit, the left fine breaking unit comprises a left fine breaking roll and a left hammering screen plate, the right fine breaking unit comprises a right fine breaking roll and a right hammering screen plate, the rough breaking roll and the left and right fine breaking roll are driven by a motor. The crusher of the structure, the material is divided into the left fine crushing unit or the right fine crushing unit after the rough breaking roll, and the material is broken and screened. In the crushing process, the material is single into and double out to achieve the split, which will not lead to the blockage of the material channel, and can effectively ensure the crushing effect and work efficiency: At the same time, mineral sizers divide the material after coarse crushing, which can effectively reduce the load borne by the body during the crushing process, thus improving the service life of the crusher.