Method for changing pulping process of rod mill

Abstract

The invention provides a method for changing a pulping process of a rod mill. The process comprises the following steps of: taking out a material which accounts for more than 10 percent by weight of the total mass of raw pulp of the rod mill, and grading the material at a specific particle size dcp of 80 to 150 microns into a component A and a component B, so that the mass ratio of the component A to the component B is (1 to 9): (9 to 1); grinding the component A, enabling the average particle size of the ground component A to be 20 microns or below, and carrying out shaping friction on the component B to eliminate edges and corners; and mixing the component A and the component B which are treated in the above steps, and adding the mixture into the rest of the raw pulp of the rod mill. According to the method for changing the pulping process of the rod mill provided by the invention, the component A with high lubricity and the component B capable of increasing the gradation relation between the particle sizes are added into the original ore pulp, so that the ore pulp concentration is increased, and the whole method is mild in operation condition, environmentally friendly and low in cost.

Description

technical field [0001] The invention relates to the field of mineral processing and pulp transportation, in particular to a method for changing the pulping process of a rod mill. Background technique [0002] In the mining industry, minerals are often transported by short-distance pipelines, such as gold tailings, silver tailings, iron ore, phosphate rock, coal and other minerals that need to be transported from the tunnel to the processing site. If vehicles are used for transportation, manual loading, unloading, and transportation are required. However, the general road conditions in mining areas are poor and vehicle transportation is limited. Therefore, the use of pipeline transportation can reduce many difficulties, with high cost performance and low energy consumption. [0003] The ore slurry is transported by pipeline. The traditional process is to process the minerals and grind them with a rod mill together with water and dispersant to produce a certain concentration o...

AI Technical Summary

Problems solved by technology

In order to reduce the problem of sedimentation during transportation, the concentration of the ore slurry generally produced is low (in order to reduce the kinematic viscosity), and the sedimentation phenomenon is alleviated by increasing the flow rate and pressure (equivalent to hydraulic transport of minerals), resulting in excessive flow rate and minerals. Pipelines and equipment are severely worn; second, due to the low concentration of ore pulp, a large amount of water is required for the production of ore pulp, and the water in the mining area and the factory is unbalanced, resulting in a large amount of waste of water resources; third, due to the low concentration, the energy consumption of subsequent factory processing is very high huge

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