SMMVIK mill assists the new production process of fly ash mortar powder

Fly ash is one of the main solid wastes discharged from the coal-burning process of thermal power plants. The annual discharge reaches more than 300 million tons. If it is not treated for a long time, it will cause pollution to the environment, atmosphere, water flow, etc. At the same time, it contains Toxic chemicals can also cause harm to the human body, so the comprehensive utilization of fly ash is an urgent problem to be solved.

1. Commercial application value of fly ash

Generally, in the process of reproducing fly ash autoclaved bricks, whether it is aerated bricks or fly ash bricks, there is a raw material section. We need to use crushers, vertical mills and other equipment to crush and grind the raw materials. to meet our requirements. The crusher is mainly used for the crushing of quicklime blocks (if dry fly ash is used, quicklime blocks are also crushed). The crusher can choose jaw crusher, impact crusher or vertical impact crusher. The vertical impact crusher can crush quicklime blocks or quicklime gypsum blocks to less than 3mm at one time, eliminating the need for secondary crushing. At the same time, due to the small particle size of the grinding, the grinding output can be increased and the power consumption of the grinding can be reduced. Therefore, it is recommended that an impact crusher should be used first.

With the deepening of people's research work, there has been a deeper understanding and understanding of fly ash. Fly ash is an artificial pozzolanic active material of burnt clay. In terms of its chemical composition, it contains more active silicon oxide and active alumina, which can react with calcium hydroxide at room temperature to form relatively stable calcium silicate hydrate and calcium aluminate hydrate. Judging from its mineral composition, it contains a large number of glass microbeads with smooth surface. These glass microspheres make fly ash have excellent properties that other pozzolanic materials do not have, and can improve the workability of its mixture. Easy to deliver and full of activity.

2. What equipment does the fly ash mill have

The currently used coal fly ash processing equipment mainly includes: Raymond mill, vertical suspension mill, high pressure micro-powder mill, super-pressure trapezoidal mill and other mill equipment. The structure design of SMMVIK fly ash mill is quite reasonable, usually It is composed of important components such as motor, analyzer, blower, finished cyclone separator, blade, grinding roller, grinding ring, spring pull rod, blade, spring seat and so on.

3. Working principle of fly ash pulverizer

The fly ash material enters the mill from the feeding device and is sent between the grinding roller and the grinding ring. The mill drives the grinding roller device suspended on the plum blossom frame through the transmission device. With its revolution around the vertical axis and its own rotation, the grinding roller is constantly swinging outward to press the grinding ring. The fly ash material is rolled with the continuous rolling of the grinding roller to grind. The pulverized fly ash material is blown up by the fan and sent to the analyzer for sorting. After the sorting is qualified, it enters the cyclone collector with the air flow. The unqualified materials will fall into the grinding room for grinding again until the production requirements are met.

4. Choose the advantages of fly ash vertical mill

01. Large production capacity: The improved roller linkage supercharging technology can keep the operation more stable, and the output is increased by more than 20%-30% year-on-year;

02. High production capacity: rationalized curved air duct reduces airflow resistance, avoids blockage, and improves the efficiency of the main engine and fan by about 40%;

03. Environmental protection and low dust: equipped with a dust collector, the dust removal effect can reach more than 99.99%, and dust-free operation is realized. At the same time, the machine has small vibration and low noise, and the operating noise is controlled within the standard decibel;

04. Long service life: The price of the equipment is economical, and the quality is strong, with few failures, reducing operation and maintenance costs;

05. Low energy consumption: accurate calculation of transmission ratio, repeated practice, scientific and intelligent, can reduce energy loss by more than 60%;

06. High quality powder: the fineness of the powdered fly ash is uniform, the impurities are few, the purity is high, and the quality is very good, which improves the industrial value at the same time.