Stamler feeder breaker is a new type of high-efficiency crushing equipment, which is characterized by small volume, simple structure, large crushing ratio, low energy consumption, large production capacity, uniform product granularity and selective crushing function. It is a promising equipment.
The concept of crushing ratio is often used to measure the crushing effect of Stamler feeder breaker. The crushing ratio of crusher is the ratio of raw material granularity to the precision of crushed products. It indicates the degree of raw material reduction after crushing.
The crushing ratio has the following calculation methods.
1. The ratio of the maximum particle size of the material before crushing to the maximum particle size of the product after crushing is used to calculate Dmax in the formula I =Dmax/ Dmax mean the maximum particle size of the material before crushing; Dmax mean the maximum particle size of the crushed material. The method of setting the maximum granularity varies with different countries. Britain and the United States with the material 80% can pass the sieve hole width as the maximum size diameter, our country and the former Soviet Union with 95% of the material can pass the sieve hole width as the maximum size diameter.
2. The ratio of the effective width of the crusher feeding port and the width of the discharge port I =0.85B/ B type B-- the width of the crusher feeding port; B -- crusher < discharging port width; 0.85- Ensure the effective width of the crusher to bite the material. The value of the width of the discharge port, the coarse crusher takes the maximum width of the discharge port; In the Stamler feeder breaker to take the minimum discharging port width. It is very convenient to calculate the crushing ratio with this formula, because it is impossible to sift a large number of materials often in production, but using this formula, as long as the width of the feeding port and discharging port of the Stamler feeder breaker is known, the crushing ratio can be calculated.
It is worth pointing out that the discharge grain size of some Stamler feeder breaker is not determined by the discharge port size. The average particle size is used to calculate the average diameter of the material before crushing in the formula I =Dcp/ Dcp; DCP - Average diameter of crushed material. The breakage ratio obtained by this method can reflect the degree of breakage more truly, so it is often used in theoretical research.
Above is the introduction of the crushing ratio of the Stamler feeder breaker. The crushing ratio has a great guiding significance for the engineer to select the model.Henan Excellent Machinery Co.,LTD is a professional manufacturer for stamler feeder breaker, If you have any question,welcome to feel free to get in touch with us.
