Feeder breaker is a kind of equipment specially developed for open pit coal mine applied in the first crushing of coal, which is mainly composed of crushing part composed of crushing tooth roller and conveying part composed of scraper conveyor. For the adjustment of crushing size, our company specially developed the adjustable distance between crushing tooth roller and conveying part to achieve the adjustment of coal discharge particle size.
Our feeder breaker crusher is made of special formula material precision casting and heat treatment, high strength, good toughness, wear resistance and impact resistance, its hardness value hrc46~hrc52, crushing strength up to 200mpa. Unique and novel tooth design structure, deep spiral distribution, strong biting capacity, high blocking rate, low over-crushing rate, high production efficiency. It has been verified by examples, far exceeding the service life of the same industry (0.5-1.5 years), up to more than 3 years. Crushing teeth using special installation technology and design structure: High frequency heating assembly, the structure is solid and reliable, durable, completely solve the problem of crushing teeth falling off or tooth shape rolling key. Feeder breaker variable frequency motor drives the driving wheel through the conveying drive device, the driving wheel through the sprocket and ring chain mesh drive from the driving wheel rotation: At the same time drive the conveyor scraper connected with the ring chain to make horizontal movement in the conveying box, conveying scraper at the same time drag the material in the conveying box for material conveying; when the horizontal movement of the conveyor scraper and its material pass through the rotating crusher roller in the crushing box, because the large material cannot pass through the specific space between the crushing roller and the conveyor scraper, the large material will be knocked, squeezed and stretched by the rotating tooth roller until it is broken, and the small material less than the discharge particle size requirements can pass through the crushing roller without breaking. The final broken material is discharged through the discharge port of the crushing device. By adjusting the frequency of the inverter and changing the speed of the variable frequency motor, the running speed of the conveyor scraper can be changed, and the processing capacity of the whole equipment can be adjusted to a certain extent. By adjusting the center height of the crushing tooth roller, the crushing and discharging particle size can be adjusted to meet different customer needs.
The crushing roller of feeder breaker is adjustable, by adjusting the center height of the crushing roller, the upward adjustment of particle size is larger, and the downward adjustment of the crushing material particle size is smaller, so that the crushing particle size can be adjusted according to different customer needs.
Our feeder breaker has large processing capacity, suitable for complex working conditions, easy replacement and maintenance of spare parts, large crushing ratio, flexible layout, low investment cost, remote diagnosis and intelligent control system. It is a very suitable equipment for the first crushing of open pit coal mine.