Material grinding system

Abstract

The invention discloses a material grinding system, comprising a feeding device, a vertical mill, a feeding device, a tube mill, a hoisting machine, a powder concentrator, a dust catcher and a blower; a gravity type grading device is arranged between the vertical mill and the tube mill; the vertical mill is not provided with a powder concentrator; the material is fed into the vertical mill through the feed device, the powder ground by the vertical mill is fed into the gravity type grading device through the feed device, powder of coarse particles is sent back to the vertical mill to be ground circularly, powder of fine particles is fed into the tube mill to be ground, the powder discharged from the tube mill is fed into the powder concentrator through the hoisting machine, fine powder is collected to be finished products by the dust catcher, and the coarse powder is sent back to the tube mill to be ground circularly. The grading device is used to simply grade the material being ground by the vertical mill with no need of energy such as electricity, pneumatic power and the like, coarse powder is sent back to the vertical mill to be ground circularly so as to reduce the vibration of the vertical mill, fine powder is fed into the tube mill to be ground to further achieve the effects of optimizing the tube mill and saving energy for grinding; the grading device is provided with a clearing device for clearing when being blocked. The material grinding system has simple process and is efficient and energy-saving.

Description

technical field [0001] The invention relates to a grinding system for inorganic non-metallic materials, in particular to a system for cement grinding. Background technique [0002] The material grinding system in the inorganic non-metallic materials industry mainly consists of the following types: open flow and circular flow grinding systems of one tube mill, series grinding system of multiple tube mills, pre-grinding equipment and tube mill The grinding system composed of the machine, the final grinding system of the roller press, and the final grinding system of the vertical mill. The energy utilization rate of the tube mill is extremely low, which makes the power consumption of material grinding very high; although the final grinding system of the roller press and the final grinding system of the vertical mill can greatly reduce the power consumption, they are used for raw materials in minerals, raw materials and cement industry Good results have been achieved, but it is...

AI Technical Summary

Problems solved by technology

[0005] The vertical mill has the advantage of absolute energy saving in the process of material crushing and grinding, but in the grinding preparation of cement, the final grinding of the vertical mill still needs to solve the problem of cement performance meeting the quality and engineering application and the problem of large vibration. A process needs to go through the tube mill to control the quality of cement well, and the energy utilization rate of the tube mill is very low. How can most of the work of cement grinding be performed in the vertical mill, while the tube mill only needs to do a smal

Images