Energy Saving Large Capacity Vertical Mill For Raw Material Limestone

Energy Saving Large Capacity Vertical Mill For Raw Material Limestone

Description

Application Area

Limestone is widely used and has a promising market prospect. However, because limestone is widely distributed in China and has no local resource advantages, it must rely on strength and other advantages to gain market share. Therefore, in the face of this resource, in the development and application, we should choose carefully, take the shortest process as possible, and use the simplest method to improve the market competitiveness.

HVM vertical mill is a kind of advanced grinding equipment which is safe, environmentally friendly, energy-saving and efficient, and integrates drying, grinding, powder selection and transportation functions, based on extensive absorption of advanced technologies of various vertical mills at home and abroad and reference to a large number of engineering application experiences.

[Feed particle size] 0-90mm

[Production capacity] 6-80 tons/hour

Applicable Materials

Limestone, calcite, dolomite, petroleum coke, gypsum, barite, marble, talc, coal powder, etc

Technical Data

Re:The data based on Mohs'hardness 3-4 material

      Limestone Bond Index≤13kwh/t

[Main Features of the Product]

1. High efficiency and energy saving:

(1) The grinding efficiency is high and the energy consumption is low. Compared with the ball mill, the energy consumption is 40% - 50% lower;

(2) Large production capacity of single machine, which can make use of low valley power;

(3) Vertical mill technology and equipment are energetically advocated new technologies for energy conservation and consumption reduction, which are conducive to enhancing the competitiveness of enterprises in the powder industry in the region and even in the country;

2. Easy maintenance and low operation cost:

(1) The grinding roll can be turned out of the machine by hydraulic device. The replacement of the roll sleeve liner plate and the maintenance space of the mill are large, and the maintenance operation is very convenient;

(2) The grinding roll sleeve can be turned over for use, extending the service life of wear-resistant materials;

(3) There is no need to distribute materials on the grinding plate before starting up, and the mill can be started without load, eliminating the trouble of starting up hard;

(4) Low wear, special materials are used for grinding roll and grinding disc liner, and the service life is long;

(5) High degree of automation: the automatic control technology adopts Siemens series PLC from Germany, equipped with automatic control system, which can realize remote control and simple operation. The workshop can basically realize unmanned operation, saving operating costs;

3. Low comprehensive investment cost:

It integrates crushing, drying, grinding and transportation. The process is simple, the system equipment is few, the structure layout is compact, and the floor area is only 50% of that of the ball mill. It can be arranged in the open air, and the construction cost is low, which directly reduces the enterprise investment cost.

4. Stable product quality:

(1) The material stays in the mill for a short time, which makes it easy to detect the particle size distribution and composition of the product, and the product quality is stable;

(2) The product has uniform particle shape, narrow particle size distribution, good fluidity and strong product adaptability.

5. High reliability

(1) The limiting device of grinding roll is adopted to avoid the violent vibration caused by material interruption during the working time of the mill;

(2) A new type of roller sealing device is adopted, which makes the sealing more reliable, and no sealing fan is needed, further reducing the oxygen content in the mill, and the explosion suppression performance is more excellent.

6. Environmental protection:

(1) The whole system of HVM vertical mill has low vibration and noise;

(2) The system is sealed as a whole, operates under full negative pressure, and has no dust spillover. It can basically realize a dust-free workshop.

Limestone grinding

Limestone is mainly composed of calcium carbonate (CaCO3) with Mohs hardness of 3. It can be divided into quicklime and hydrated lime. After limestone is mined from limestone, it is crushed to form limestone particles, namely stone and sand, or further ground to form limestone powder, which is widely used in building materials, highways, metallurgy, chemical industry and other industries.

[Application of limestone grinding]

Application fields of quicklime

Limestone is calcined into calcium oxide CaO (commonly known as quicklime), which is generally blocky and used in water treatment, asphalt improvement, desulfurization, building materials, medicine and other industries.

Application field of hydrated lime

Quicklime becomes hydrated lime by absorbing moisture or adding water. The main component is calcium hydroxide Ca (OH) 2, which is used in environmental protection, medicine, food and other industries.