High-quality stone crusher manufactured by the Chinese mining

Cement grinding

Fly mill for limestone, fly ash and other industries in the 9.3 Mohs hardness below 10% humidity in a variety of mineral grinding materials processing.Fineness be adjusted from 20-425 mesh (up to 2000 mesh), according to the model, output from the 1-30T / h range, is the extraordinary customer the choice of grinding fly equipment.Our company's European Trapezium Mill, the introduction of the 4th generation of the European mill technology and ideas to improve their predecessors, the original mill on the basis of fly ash boldly improvement, from the appearance, processing, grinding rotor, the electionpowder system, the inlet and the lubrication system, transmission system, set powder system, Yang feeding system, a series of grinding systems, the final improvements to achieve maximum performance of the equipment, energy consumption lower than the world average.

Cement process approach has the following deficiencies:

Cement with fly ash as fine in itself, just from the small degree of consideration, has reached the requirements of cement products, such as this fine powder into the mill, that the formation of sponge-like cushion cushion, thereby increasing the material inside the millload, reducing the mill efficiency, mill output is limited.

Fly ash is discharged by thermal power plants as a powder body waste, which contains very useful to improve the function of spherical cement glass beads, because of its smooth surface, friction between the granular layer resistance is small, easy to slide, therefore, retained theDepartment spherical glass beads of cement activity for progress, workability, function to improve cement and cement concrete construction function can play a significant role.However, by the mill grinding of fly ash after the destruction of glass beads to form multi-row ball-like particles, resulting in friction between the cement particles increases, thus affecting the activity of the cement.

Existing cement raw material storage means, generally use the large library of material storage stand.But not for the combined discharge of fly ash storage, which is due because the fly ash form of powder, one is not stacked, and second, the dust raised when a large discharge of pollution to the environment.If the library established from a high of material storage warehouse to a promotion must increase transportation equipment, engineering time and costs, and high cost.Fly ash cement raw materials produced by the fly ash, cement clinker, gypsum stone mixture of 3 materials.Among them, the cement clinker from limestone, clay, iron according to the quantitative ratio scale ground into raw material, made by the calcination of cement clinker particles.In the traditional cement grinding process, fly ash, cement clinker, gypsum stone after 3 ratio of raw materials into the mill for grinding the same time, after grinding the mixture into the separator to separate, in line with finedegree requirements in a timely fashion cement powder was elected as cement products, materials and coarse particles within the cycle back to the grinding mill to finished product.

cement vertical mill

Short vertical milling machine mill, cement chemicals, coal, electricity and other departments widely used as a milling machine equipment.With a small footprint, low power consumption, noise, process simple, compact layout, centralized pieces, drying, grinding, the powder as one of the advantages of a modern cement raw material grinding device of choice.Development of the world's first vertical mill is the Federal German Loesche (Loesche) company in 1925 to have a more mature design.Through continuous development and improvement, and the biggest LM63.4, production reached 840t / h, disc diameter of 6.3m, installed power of 5600kW, 4 vertical roller mill.

Cement Vertical milling machine system process flow

First, the single-pulse dust collector open systemThe system of raw materials through the bucket elevator into the raw materials warehouse, after weighing, in addition to the lock after iron into the wind with a belt feeder, into the mill for raw materials as much as possible without strings wind.Products with a single pulse dust collection to complete, reducing the number of equipment units to simplify the system configuration.Products collected by a screw feeder bucket elevator into the storage bin.Wet material can be dried into the ground.

Second, the Cyclones closed system increases pulse dust collector The single-pulse filter system and the difference between open systems products, with a cyclone to collect to complete part of the gas into the mill induced draft fan for recycling, can reduce the system's work load and the amount of gas through the precipitator, the finalpulse dust collector dust removal equipment available.

Third, closed-circuit system of single-pulse dust collector The system with a single collector system, the difference is collected and used products, pneumatic conveying system for the finished product into the storage bin, while most of the gas induced draft fan into the mill for recycling.

Relate beneficiation

• cement mill
• cement ball mills
• cement production line
• non metal ore crusher