Summary: In the production process of mobile crusher, it is very important to analyze the reasons for the decline of production capacity and solve the problem of substandard discharge output...

In the production process of mobile crusher, it is very important to analyze the reasons for the decline of production capacity and solve the problem of substandard discharge output. The discharge output of mobile crusher directly affects the quality of the final products. In the following part, we mainly introduce the 4 reasons that cause the discharge output substandard phenomenon in mobile crusher.

Reason 1: crushing ratio

Crushing ratio refers to the ratio of particle size of the feeding raw material and the crushed product. The larger the ratio, the bigger the crushing ratio is. For mobile crusher, large crushing ratio will increase the content of needle-like particles in the final products. IIf the crushing ratio is too small, it will cause a decrease in production capacity, an increase in circulation load, and increased wear of the mobile crusher. So, it is very important to adjust the crushing ratio.

Reason 2: feeding size of raw material

Different types or different models of mobile crusher have different max feeding size. If the feeding size of raw material is improper, it will also cause the discharge output substandard phenomenon of mobile crusher. For example, when the feeding size is reduced from 100 mm to 50 mm, the needle-like particle content in the finished product falls by 38%, so the feeding size of raw material must conform to the requirements of the mobile crusher.

Reason 3: circulating load of mobile crusher

Mobile crusher works in the closed circuit. If you increase the discharge opening size and the circulating load, the final products will have a better shape. In the whole process, due to the increase of the circulating load, the wear of equipment in the mobile crushing plant also increased. But when the discharge opening increases, the load of the main crusher motor can be reduced, and the shape of the final products gets better. In all, it is very important to adjust the circulating load of mobile crusher.

Reason 4: open and closed cycle crushing

The production process of mobile crusher has two modes: open and closed cycle crushing. Open cycle crushing mode is called screening before crushing while closed cycle crushing is called crushing before screening.

Screening before crushing means that raw materials after primary crushing are first screened on the product screen and then fed into the secondary crusher for secondary crushing, so that the output of finished products will be increased, and the content of needle-like particles will be reduced. Crushing before screening means to feed all the primary crushing materials into the secondary crusher, and then screen the products from secondary crushing. The whole system is a closed system, without loss of crushed materials, but the product particle shape is better. In the actual production of mobile crusher, operators can choose open or closed cycle crushing modes according to requirements.