ball mill grinding system cement coal kaolin air classifier

ball mills | air classification | united states

ball mills | air classification | united states

The company manufactures air classifiers, ball mills and stirred media mills for the production of fine, superfine and ultrafine powders for the mineral, mining, cement, lime, metal powder and chemical industries.

RSG Inc, manufactures air classifiers, ball mills and stirred media mills for the production of fine, superfine and ultrafine powders for the mineral, mining, cement, lime, metal powder and chemical industries.

energy efficient cement ball mill from flsmidth

energy efficient cement ball mill from flsmidth

You decide whether to operate the mill in open or closed circuit, with or without a pre-grinder and with side or central drive, according to your plant layout and end product specifications. Even the lining types are tailored to your operating parameters.

In addition, the large through-flow areas enable the mill to operate with large volumes of venting air and a low pressure drop across the mill. This reduces the energy consumption of the mill ventilation fan and keeps your energy costs down.

The mill is based on standard modules and can be adapted to your plant layout, end product specifications and drive type. The horizontal slide shoe bearing design enables much simpler foundations and reduced installation height, making installation quicker and less expensive.

Our shell linings are designed to suit the task at hand. In our two-compartment cement mills, the first compartment (for coarse grinding) has a step lining suitable for large grinding media. It protects the shell while ensuring optimum lifting of the mill charge. In the second compartment (and also in our one-compartment cement mills) we use a corrugated lining designed to obtain the maximum power absorption and grinding efficiency. For special applications, we can supply a classifying shell lining for fine grinding in the mill.

In fact, the entire mill is protected with bolted on lining plates designed for the specific wear faced by each part of the mill. This attention to detail ensures both minimal wear and easy maintenance. When a wear part has reached the end of its life, it is easily replaced.

The grinding media are supplied in various sizes to ensure optimum grinding efficiency. The STANEX diaphragm is designed to maximise the effective grinding area, enabling a higher throughput. It is fitted with adjustable lifters to ensure the material levels in each compartment are right. Best of all, the STANEX diaphragm works for all applications, even when material flow rates are high and the mill feed is moist.

The mills are typically driven by our FLSmidth MAAG LGDX side drive - gearing rated to the latest proven AGMA standards. The mill drive is provided with an auxiliary drive for slow turning of the mill. The LGDX includes two independent lubrication systems, one which services the girth gear guard and intakes more dust, and a second which supplies oil for the fast-rotating gearing and bearings and stays clean. If requested, however, the mills can be provided with a central drive: the FLSmidth MAAG CPU planetary gearbox. The mill design differs slightly, depending on whether the side or central drive is chosen.

Each grinding compartment has two man-hole covers to give easy access for maintenance. As there are minimal moving parts, the maintenance requirement is low and simple changes like replacing wear linings and topping up grinding media can be completed quickly and easily. Horizontal slide shoe bearings prevent oil spillages from the casing and offers easy replacement of slide shoes.

Buying a new mill is a huge investment. With over a century of ball mill experience and more than 4000 installations worldwide, rest assured we have the expertise to deliver the right solution for your project. Our ball mill is based on standard modules and the highly flexible design can be adapted to your requirements. The mill comprises the following parts.

The mill body consists of an all-welded mill shell and a T-sectional welded-up slide ring at either end, the cylindrical part of which is welded onto the ends of the shell. The mill shell has four manholes, two for each grinding compartment.

Each slide ring runs in a bearing with two self-aligning and hydrodynamically lubricated slide shoes. One of the slide shoes at the drive end holds the mill in axial direction. In the others, the slide rings can move freely in axial direction to allow for longitudinal thermal expansion and contraction of the mill body.

The slide shoes are water-cooled, and each bearing is provided with a panel-enclosed lubrication unit including oil tank, motorised low- and high-pressure oil pumps, as well as an oil conditioning circuit with motorised pump for heating/cooling and filtration of the oil.

The stationary steel plate inlet duct leads the venting air into the mill. It is equipped with a manually operated throttle valve and a pressure monitor to adjust the pressure at the inlet end, thus preventing dust emission from the inlet. The feed chute is lined with bolted-on wear plates and slopes down through the air duct to the mill inlet opening.

The more control you have over the mill, the better your grinding efficiency is likely to be. Our ball mills include monitoring systems to continuously measure the material and air temperatures as well as the pressure at the mill exit. The venting of the mill is adjusted by a damper in the inlet to the mill fan. And the material fill level is continuously monitored by means of sensors. For ball mills operating in closed circuit, the circulation load is monitored by weighing the flow of reject material from the separator. These measures ensure you achieve optimum mill performance, giving you the quality, efficiency, safetyand reliability that you need.

FLSmidth provides sustainable productivity to the global mining and cement industries. We deliver market-leading engineering, equipment and service solutions that enable our customers to improve performance, drive down costs and reduce environmental impact. Our operations span the globe and we are close to 10,200 employees, present in more than 60 countries. In 2020, FLSmidth generated revenue of DKK 16.4 billion. MissionZero is our sustainability ambition towards zero emissions in mining and cement by 2030.

classifying and ball mill production line - alpa powder technology

classifying and ball mill production line - alpa powder technology

ALPA enjoys a high reputation in more than 100 countries and regions around the world. With its high-quality products and services, it has won the trust of many well-known brand companies around the world.

The product particle size control is flexible, special design is adopted to reduce noise and emission. Automatic control, easy to operate. According to the scale of investment, it provides personalized customized scheme and provides value-added services.

According to different materials and application industries, the production capacity and particle size range will be different. Please contact our engineers to customize the equipment for you. Our experts will contact you within 6 hours to discuss your needs for machine and processes.

After coarse crushing, the material is fed into the ball mill through a controllable feeding device. The grinding medium in the mill repeatedly impacts and grinds the material by virtue of the kinetic energy obtained when the mill rotates. The crushed material is discharged into the suction tank through the tail of the ball mill, and then transported to the classifier for classification by negative pressure. The qualified fine powder is collected by cyclone collector or dust collector, The coarse particles after classification are discharged from the lower end of the classifier, and then re-enter the ball mill for crushing through the feeding pipe.

Note: The production capacity is closely related to the particle size, specific gravity, hardness, moisture and other indicators of the raw materials. The above parameters are for reference only, please consult our engineers for details.

cement separator cement mill separator | cyclone air separator in cement plant

cement separator cement mill separator | cyclone air separator in cement plant

Cement separator, also called cement mill separator, is the necessary equipment in the powder classifying system of cement, chemical, mineral, and other industries. It can respectively collect the qualified fine powder and coarse powder from the airflow after they are ground by the grinding equipment to a certain extent. The utilization of cement separator prevents the fine powder from sticking to the grinding media and produces the buffering effect, so as to adjust the size composition of finished products and improve the grinding efficiency.

As a kind of cement equipment, cement separator is mainly used in the coal mill grinding system, raw mill grinding system, and cement mill grinding system of the cement production line. In order to improve the efficiency of these systems and reduce the energy consumption of products, current cement plants generally adopt the closed-circuitgrindingsystem. As an important part, the performance and quality of cement separator will directly affect the grinding system.

There are many types of cement separators, different types suitable for different materials. Besides, different models should also be selected according to the customers requirements for material fineness.

Cyclone air separator is one kind of cement separators. AGICO Cement, as a professional cement equipment supplier in China, offers different models of quality cyclone air separators for any type and size of cement plants, such as JD series cyclone air separator. It is the latest powder separator developed by our companys technicians with the plane eddy theory. Its powder selection efficiency can reach 80-85%. Besides, we also provide other types of cement separators, such as TZX series cement separator, TS series cement separator, and MX series cement separator.

The circulating air of the cement cyclone separator is generated by the air blower. During the powder classifying process, the air is sent by the air blower from the center of the separator in a tangential direction and then spirals up to the classifying chamber. After being ground in the mill, materials are fed through the top feeding port of cyclone air separator and falls onto a rotating spreading plate. Due to the action of inertial centrifugal force, the material is evenly scattered around the spreading plate and meets with the updraft. The finer particles rise to the position of blades with the airflow, among which some of the larger particles sink along the inner cone and enter the coarse powder duct. The smaller particles enter the cyclone with the updraft after passing through the blades and then collected by the centrifugal force. After being separated by the cyclone, the airflow comes out from the air duct and enters the air blower again, thus forming a closed circulation air.

AGICO is a professional cement equipment manufacturer. Cement separator is one of our hot sales products. Compared with the traditional cement separator, the separator produced by AGICO has the following outstanding advantages:

AGICO Group is an integrative enterprise group. It is a Chinese company that specialized in manufacturing and exporting cement plants and cement equipment, providing the turnkey project from project design, equipment installation and equipment commissioning to equipment maintenance.

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