Raw material vertical roller mill is my company with years of various grinding mill production experience, extensive domestic and international lessons learned ultrafine grinding, design and development of advanced grinding equipment. Raw material vertical roller mill is a set crushing, drying, grinding, grading conveyor in one of the vertical roller mill ideal equipment industry flour. Can be widely used in cement, electricity, metallurgy, chemical, non-metallic mineral and other industries. For the massive, granular and powdered raw materials ground into the required powder material.

Structure principle of vertical roller mill

The torque of the motor is transmitted to the mill's disc through the gear unit. The reducer is a FLS or other manufacturer's angle reducer. Thrust pads on the reducer support the grinding disc and the grinding roller. The weight of the grinding element and the grinding pressure are transmitted to the gear unit via thrust shoes and from the gear unit to the basis of the roller mill.

• 1, In raw material vertical roller mill, the raw material is fed into the mill through the feeding chute and falls onto the grinding disc. The raw material then flows onto the grinding track, where it is ground and, finally, moved to the outer edge of the disc by centrifugal force.
• 2, crushed material from the annular nozzle out of the role of the hot air roller mill along the shell. The coarse particles are returned to the grinding track for further grinding, while the fine particles go straight to the separator.
• 3, crushing the material through the separator stator blades into the rotor. The function of the vanes is to distribute the material uniformly along the height of the rotor while rotating the mixture of material and air to effectively pre-separate the material.
• 4, when the fine particle material through the rotor and then discharged from the separator, the coarse particles and the rotor impact is thrown along the vane direction, falling into the cone below the rotor, which returned to the grinding disc for grinding.
• 5, the raw material vertical roller mill product fineness can be adjusted by changing the speed of the rotor.
• 6, the position of the vane in the debugging phase to adjust to optimize the operation status.

Technical advantages of vertical roller mill

• 1. Process advantages

The introduction of Germany Loisel legislature mill technology, optimize the roller, disc working mechanism to ensure the perfect shape of the finished particle.

• 2. Quality advantage

With the heavy machine raw material vertical roller mill production PC42.5 cement surface area of 3900cm² / g, stable and reliable quality, has become fully cement grinding system with the ability to end grinding, has been recognized by many customers.

• 3 energy-saving advantages

Single-system power consumption 25kWh / t, power consumption than the ball mill to reduce 15kWh / t. In other words: a 5000TPD cement plant only clinker grinding energy-saving: 15kWh / t × 5000t / d × 300d = 22.5 million kWh, that is, clinker cement plant a year can save 22.5 million kWh of electricity.

• 4, less wear and tear

As the work of the roller is not in direct contact with the disc, and the roller and the liner made of high quality materials, so long life, less wear and tear.

Application of vertical roller mill in Fly Ash Field

Fly ash can use vertical roller mill to fly ash processing, can be used in the major power plant to deal with fly ash waste the main way, with the following heavy machine to introduce the vertical roller mill is how to process fly ash.

Fly ash is the fine ash which is collected in the flue gas after coal combustion. The main solid waste fly ash allocated by the coal-fired power plant of fly ash is one of the industrial waste with larger emission in our country at present. With the continuous development of power plant industry, coal-fired power plant fly ash emissions are increasing every year.

If fly ash is not processed, dust will be generated and the atmosphere will be polluted. If it is drained into the water, the river will become clogged and the environment will be polluted, and the toxic chemicals in it will also harm human beings and living beings.

The comprehensive utilization of fly ash has turned waste into treasure and turned harm into profits. It has become an important technical and economic policy in the economic construction of our country. It is also an important means to solve the contradiction between environmental pollution and lack of resources in China's power industry. One of the tasks that production faces.

Addition of fly ash to concrete saves a lot of cement and fine aggregate; reduces water consumption; improves workability of concrete mix; enhances pumpability of concrete; reduces creep of concrete; reduces hydration Heat, thermal expansion; improve the impermeability of concrete; increase the modification of concrete.

Different types of milling machine equipment in the technical parameters, prices and other aspects are different. Shanghai Tongli Heavy Machinery Co., Ltd. dispatches professional and technical personnel to carry out on-the-spot inspection on the customer's production site and tailors the equipment type to customers based on factors such as site size, material hardness, output and finished product fineness, and then gives corresponding quotation to ensure Let customers with the least investment to get the most economic benefits.