Ball mill is a traditional milling equipment, which can also be used for bentonite milling to 80mesh. The ball mill is equipped with a drying cylinder, which can dry the bentonite during milling. The ball mill has the advantages of large production capacity and strong adaptability to materials, which is suitable for large-scale bentonite processing projects. However, the ball mill has the disadvantages of high energy consumption, large floor area and complex operation. The unit energy consumption is about 60-70 kWh/ton, which is higher than that of Raymond mill.
Air-swept mill is a new type of efficient milling equipment, which is specially designed for the milling of materials with strong water absorption. The air-swept mill adopts the working principle of air flow grinding and drying, which can complete the drying and milling of bentonite in one step. It has the advantages of high production efficiency, low energy consumption and good drying effect. When milling bentonite to 80mesh, the air-swept mill can achieve a production capacity of 10-60 tons per hour, and the unit energy consumption is only 30-40 kWh/ton. At the same time, the air-swept mill has a good sealing performance, which can effectively prevent the leakage of dust and bentonite powder, meeting the environmental protection requirements.
80mesh bentonite powder is widely used in the preparation of drilling fluid. Drilling fluid is an important medium in the drilling process, which plays the roles of cooling drill bit, carrying cuttings, stabilizing well wall and protecting reservoir. The 80mesh bentonite powder has good water absorption and swelling performance, which can increase the viscosity and shear force of drilling fluid, ensuring the normal progress of drilling. In addition, 80mesh bentonite powder can also be used in the foundry industry as a binder, which can improve the strength and air permeability of the molding sand.
To sum up, for enterprises engaged in bentonite milling, the selection of appropriate milling equipment should be based on the production scale and actual needs. For large-scale production enterprises, air-swept mill is the best choice, which can improve production efficiency and reduce energy consumption; for small and medium-sized enterprises, Raymond mill is a more suitable choice due to its low investment cost. With the continuous development of the oil and gas drilling industry, the demand for 80mesh bentonite powder will continue to increase, and the milling equipment will also develop in the direction of high efficiency, energy saving and intelligence.
