The following demands need to be fulfilled in grinding machine selection：
(1)high-pressure grinding mill is often used for coarse grinding of material with granularity of 1-3mm. If the granularity is too small, the grinding efficiency will drop dramatically. Due to the effect of three-ring micro powder mill movement in the machine, the diameter should not be greater than 4,500mm, and the length of granite trapezium mill should not be more than 6,000mm. When cement ball mill and rod mill work jointly, the proportion should be 1:2.
(2)Grate iron ore raymond mill is often used as the first stage mill for coarse grinding. When the grate mill works in a closed circuit, the granularity is usually within the range of 0.005-0.074mm. The ball mill is often matched by spiral classifier.
(3)Overflow ball mill can be often used for the first stage grinder as well as the second stage grinder. Occasionally, it can be used for regrinding of semi-finished product. At present, it is mostly used as the second stage grinder or middle product regrinder at home. And the classier is often configured with hydrocyclone. Sometimes, the grinder is also complemented by spiral classifier when used as first stage grinder. Heave type ball mill forms a circuit by overflow ball mill and hydrocyclone, which simplifies the structure and makes for easy check.
(4)When selecting autogenous mill, semi-autogenous mill and gravel mill, customers should notice whether there is fine grinding medium in the raw material. The indicator can be detected by tester and data processing. Then users can decide whether there is need for autogenous, semi-autogenous and gravel semi-industrial tests. The model selection can be based on the calculation by formula.
YZS series linear vibration screen is widely used to sieve the fine grain and powder materials in the industries such as food, plastics, grinding material, building material, chemical, pharmaceutical, metallurgical, resign powder, abrasives, ceramic material and other industries in the dry powder or granular material screening, etc. During model selection and ordering sieve pore size, capacity, material designation input grain size shall be indicated.
