The mineral processing production line mainly consists of jaw hammer crusher, ball mill, classifier, magnetic separator, flotation machine, concentrator and dryer, etc.
Cooperate with feeder, hoist and conveyor to form a complete dressing production line.
The dressing production line of guote equipment has high efficiency, low energy consumption, high processing capacity and reasonable economy.
Usually, the primary crushing of the mined ore is carried out by the jaw crusher. After the crushing to a reasonable fineness, it is carried out by the elevator.
The ore feeder is uniformly fed into a ball mill, which crushes and grinds the ore.
After the ball mill grinding fine ore into the next process: classification, spiral classifier according to the proportion of solid particles
The ore mixture is classified according to the principle of different rates of precipitation in the liquid.
Grinding and grading in the dressing process with dressing equipment refers to the operation of reducing the particle size of mineral raw materials with certain mechanical equipment and having certain particle size distribution characteristics.
Usually crushing is to reduce the particle size to 20-5mm operation, the equipment used is a crusher;
Grinding is the fine grinding operation, the equipment is grinding machine;Grading is the operation of matching crushers and grinders to produce final product particle size distribution.
Among them, the grading equipment matched with crusher is sieve, and the grading equipment matched with mill is classifier.Since in most cases the existing dressing equipment cannot crush the bulk ore to the required fineness at one time,
So the crushing and grinding of the two mineral processing equipment is carried out in stages.
And according to the nature of raw ore, material particle size, product fineness and type of equipment to choose the specific number of crushing and grinding section.
Each time the material passes through a crusher or mill, it is called a crushing or grinding section.
For each stage of crushing or grinding operation, the ratio of particle size before and after material crushing (i.e., feed particle size and product particle size) is the crushing ratio or crushing ratio of crushing or grinding operation in that stage.
It reflects the extent to which the particle size of raw coal (ore) is reduced after being crushed by crusher or mill.
The total crushing ratio or crushing ratio of each section of the crushing or crushing process.
Breakability refers to the difficulty of crushing materials.The breakability of materials is usually expressed by the breakability coefficient,
The breakability coefficient of the material is based on the unit energy consumption yield of a standard mineral.
Factors related to the breakability of materials include strength, hardness, density, structure uniformity, viscosity, crack, moisture content and surface shape.
Both strength and hardness indicate the resistance of materials to external forces, so materials with high strength and hardness are difficult to be crushed.
