All posts by: gkmill

The main indicators to measure the quality of sand are: mud content, sand particle size, fineness modulus and sand hardness. 1. Mud content: According to the “Quality Standards and Inspection Methods of Sand for Ordinary Concrete” JGJ52-2011: The limit of mud content in sand varies according to the concrete strength grade. The mud content in […]

1. Aiming at the characteristics of clay minerals such as high water content, strong cohesiveness and easy moisture absorption, the European type grinding mill optimizes the main machine grinding device and the structure of the blade to increase the output and no large particles appear in the finished product. 2. Equipped with a cage turbine […]

The process of recycling, crushing of waste concrete blocks and recycled aggregate production is the prerequisite for the recycling of waste concrete. Recycled aggregate concrete refers to recycled aggregate processed by crushing waste concrete. Recycled aggregate refers to waste concrete after specific treatment, crushing, classification and mixing in a certain proportion to form a particle […]

To process stone powder in quarry, generally we need to process stone into different fineness stone powder. European type grinding mill and vertical mill. It can process 80-2500 mesh powders. The hourly capacity is from few tons to several tens of tons, and the prices are also different. According to its working principle and other […]

The ultra-fine vertical mill’s discharging size is adjustable between 400-1250 mesh, the capacity is relatively large with 5-18 tons per hour.It is suitable for large-scale processing of calcite ultrafine dry powder. Ultra-fine powder mill has following advantages: 1. Low investment and high efficient. Under the same fineness and power consumption of the finished product, the […]

Graphite and diamond are allotropes, both composed of carbon, and are minerals formed by high temperature, high pressure and billions of years of geological movement. Natural graphite ore is a non-renewable resource and an indispensable raw material for today’s global high-tech and cutting-edge products. Therefore, graphite resources are important strategic resources for the country. With […]