Baichy Heavy Industrial Machinery Co., Ltd
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What is slag?
Slag is a by-product of the blast furnace ironmaking process. Specifically, when iron ore is reduced to metallic iron through iron oxide at high temperatures, impurities such as silica and alumina react chemically with lime to form silicates and aluminosilicates. A melt of the main ingredients. After quenching, these molten materials will form loose, porous granular materials. This is what we call blast furnace slag, or slag for short.
What are the applications of slag?
Slag is widely used in industrial production. Through processing and refining, slag can be made into slag cement, slag powder, slag Portland cement, slag wool, etc., which not only saves energy consumption but also contributes to environmental protection.
The Slag Vertical Roller Mill is based on the slag raw material to build the production process. For example, slag raw materials can be applied to cement manufacturing plants. The processed slag material can be filled in cement to process slag cement, which can improve the performance of cement, reduce cost, and increase the benefit of the whole cement plant.
Slag vertical roller mill, referred to as a vertical mill, is a piece of equipment specially used for slag grinding and processing. It integrates fine crushing, grinding, drying, powder selection, and transportation, providing a continuity and stability guarantee for slag grinding production and significantly improving slag grinding efficiency.
In slag grinding production, the slag vertical roller mill plays a central role. Through its efficient and stable grinding process, it not only improves the output and quality of slag grinding but also provides high-quality admixtures for the production of concrete and other products, thus improving the performance of concrete.
The working principle of the slag vertical roller mill is mainly to drive the reducer through the electric motor, thereby driving the grinding disc to rotate. The material falls into the center of the grinding plate from the feed port through the air-locked feeder, and at the same time, hot air enters the mill from the air inlet. During the rotation of the grinding disc, the material moves from the center to the edge under the action of centrifugal force. After compaction, degassing, grinding, and other processes, the material is picked up by hot air and dried instantly. Subsequently, the material is brought to the powder separator for sorting, qualified fine powder is collected, and the coarse powder is returned to the grinding disc to continue grinding.
The design structure of the slag vertical roller mill provides several advantages. First of all, since the transmission device does not bear high axial loads such as the weight of the grinding disc and grinding pressure, a general-purpose reducer can be used to make the structure compact and reliable. Secondly, the vertical roller mill simplifies the process, occupies less area, saves investment, greatly reduces power consumption, and has a long service life and high operating rate. In addition, it can also process slag powder with higher fineness to meet different production needs.
| Model | Grinding table dia.(mm) | Max feeding size(mm) | Discharge size(um) | Discharge size(mesh) | Air-in tempreture(℃) | Air-out tempreture(℃) | Input material moisture | Final moisture | Capacity(t/h) | Motor Power(kw) |
|---|---|---|---|---|---|---|---|---|---|---|
| SRM1300 | 1300 | ≤38 | 212-45 | 70-325 | ≤350 | 70-95 | 4-15% | ≤1% | 10-35 | 185-250 |
| SRM1500 | 1500 | ≤38 | 212-45 | 70-325 | ≤350 | 70-95 | 4-15% | ≤1% | 13-48 | 250-355 |
| SRM1700 | 1300 | ≤38 | 212-45 | 70-325 | ≤350 | 70-95 | 4-15% | ≤1% | 18-68 | 355-600 |
| SRM1900 | 1900 | ≤38 | 212-45 | 70-325 | ≤350 | 70-95 | 4-15% | ≤1% | 23-85 | 450-600 |
| SRM2200 | 2200 | ≤38 | 212-45 | 70-325 | ≤350 | 70-95 | 4-15% | ≤1% | 36-135 | 710-1000 |
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