Limestone Grinding Mill Strives to Meet Application Needs

Limestone has a wide distribution in nature and it can be gained very easily, it is an important raw material in the manufacturing industry and construction, for this reason, it is widely applied. As an important production raw material in the cement industrial production, limestone is the lifeblood of the cement production and is the food of cement industry. Other than cement production, it is also main raw material for lime and calcium carbide manufacturing and an indispensible flux in the metallurgical industry and it also has wide application in the product manufacturing of paper, paint, coating, rubber and pharmacy. The wide application of limestone promotes the development of the limestone powder grinding industry. In the limestone processing technology, crushing and grinding is the basis of processing so that stone crushing devices and powder grinding machine  LUM  Ultrafine Vertical Roller Mill are all indispensible equipment. According to the different requirement for the fineness of the limestone powder of different application industries, the customers should choose suitable processing equipment in order to produce limestone powder to satisfy the application demands of different industries.

In the limestone powder manufacturing process, jaw type crusher and Raymond mill are the ideal stone crushing and grinding equipment in the powder making industry. The two kinds of machines not only has high processing ability and low energy consumption, but the final products produced by them has excellent quality so that they have wide application in the limestone pressing industry. Zenith stone crushing and grinding mill can by used for processing superfine powders for more than eighty materials in the mining, chemistry and building materials. It can be used for crushing limestone, barite, ceramics and mineral waste residue and the granularity of the final products can reach 1000Mesh. The advanced stone crushing and grinding machine has many advantages such as practical and easy and convenient technology, easier operation and maintenance, so that it not only improves the powder processing efficiency and the final output, but promotes the prosperity and flourishing of the powder manufacturing industry and drives the reform of the powder making industry.

Based on its over 20 years’ powder grinding equipment research and production experience, Zenith Machinery keeps up the technology with the modern era, and launches new products according to the market demands. The product quality stands the market test and first-class service support concept wins a lot of appraisal from the customers and wins good public praise for the market sales tide. Zenith stone and grinding machine finally becomes the first equipment brand choice for the limestone powder making industry.

To meet the trend of modernization development and the needs of international markets competition, our company has been introducing senior management personnel, scientific and research talents, and advanced graduates continually. And we are taking advantages of advanced technology from United States, Germany, Japan and other countries to achieve self-innovation and effective development. As a professional and the best mining machinery manufacturer in China, Zenith Machinery is always ready to provide the superior ball mill with the best quality and the most competitive price.

Vertical roller mill is a sector with high energy consumption

Grinding operation of Vertical roller mill is a sector with high energy consumption, and it plays an very important role in the production line. It is essential to control the grinding fineness to reduce the cost and increase the economical benefit directly. The classifier could lift the height and affect the grinding fineness of vertical roller mill. The dissociation of useful minerals and waste rock minerals would be complete when the grinding granularity is fine. It is good for increasing the metal recovery rate. So when the ore disposal is under certain conditions, we should increase the grinding fineness as soon as possible.

The grinding fineness is one of the important factors affecting mineral indicator. Volume of grinding fineness affected the ore quality and recovery rate directly. So the technology operation is essential. Within the cement processing, every single ton of Portland cement desires grinding three ton of material including numerous raw material, bunkers, clinkers, mixture material and gypsum. cement mill. Besides, vertical roller mill is the first procedure of beneficiation process. We should protect the stable production in order to ensure stable production. Generally speaking, particle size the sieve adjustment is two of the important factors affecting the grinding fineness of grinding mills.

There are the features of vertical roller mill. By means of the roller swing-out device, ball mills,the grinding rollers can be turned out of the mill, which is in favor of maintenance. 5. The limit mechanism avoids the fiction and crash of metals between grinding roller and grinding plate, increasing the rotating stability and security. The centralized circulating oil lubrication is applied to the grinding roller bearings, which ensures the bearing operate at constant temperature and with pure oil, so that longer service life is achieved. With the function of automatic lifting and falling , can realize no-load starting. Welded type arc plate is used for sealing, it features simple structure, reliable performance, well-sealed structure.

Vertical roller Mill Introduction in Detail

Grinding mill is mainly used for raw material processing and crushing, such as feldspar, quartz, ore, etc. It is also suitable for making abrasive, fire-proof material, cement, steel grit, slag powder, copper ore, iron ore, gold ore, concrete aggregate, asphalt aggregates and so on. So it is a kind rod grinder.

Grinding mill is mainly for medium and fine crushing of hard, brittle materials. There is another kind dry rod mill. In order to avoid the dangers of over crushing, rod mill is often used by re-election or magnetic separation plants of tungsten tin mineral and other rare mineral.

When using two grinding process, if the first step grind materials from 20 ~ 6 mm to 3 ~ 1mm, adopts rod mill for the first step grinding rod mill, the production capacity will be bigger ,and efficiency be higher too.

In some cases, Vertical roller mill  can replace short head cone crusher and do finely grinding. When dealing with softer or ore that is not too hard (especially the ore is with big viscosity), rod milling will grind the ore from 19-25 mm (or even 32 mm) to 6-10 mm, with lower cost and a simpler device compared with short head cone crusher. And can also make the workshop dustless and simplified.

The motor drives the rod mill through the reducer and peripheral big gear, or the low-speed synchronous motor directly drives the rod milling machine/mill through big gear around rod milling machine to drive the cylinder body rotation. The cylinder body is filled with appropriate grinding medium - steel bar.

In the function of centrifugal force and friction force, the grinding medium was promoted to a certain height, and then was thrown or relief in fall state.

The materials to be grind were continuously send into the cylinder, and shattered by the moving grinding medium inside, Then, through the overflow and continuous feed strength, the materials will be discharged, so that to begin next segment procedures.

1.To save power：Rod mill has 40% power saving than traditional rod grinding machine, particles are much more uniform. Comparing the characteristic of finished products of rod mill and milling machine，they are almost same in open work of rod mill and close work of ball mill.

2.Adopt advanced materials-access controllable pin crusher technology, equipped with a suitable abrasive material grinding system based on actual user, change surface-contact of traditional ball mill into line-contact, make discharged materials more uniform, and make production more higher and also more suitable for different hardness(Mohs hardness of 5.5 to 12)ore.

3.The fineness of discharged materials can be adjusted：change particle size through simple adjustment，equip-in fineness controllable device, and the screening device is available for discharged materials, there are two pass-guard to ensure neither excessive grinding nor substandard particles mix into finished products. The rod mill products feature is relevant to particle ore of rod grinding situation. When the rod hit against the ore, coarse particle is hited firstly, then smaller mineral particles is under grinding to reduce the risk of excessive-crushing. When rod turn rising with lining plate, fine particle falls through bars sieve and coarse particle is blocked, it is conductive to click coarse particle into pieces, and also make coarse grinding media concentrate on hitting area. Therefore the rod products are more uniform and less over-crushing.

Improvement on the Technology of Raymond Mill

The most direct improvement of the high pressure grinding mill is the high pressure spring system for the roller part so that the grinding range of the high pressure grinding mill becomes wider than that of the Raymond mill. Raymond mill has stereoscopic structure and small in size compared with other grinding mills. Raymond mill industry has developed rapidly in recent years, and it has been widely developing in all the business from all walks of life. It also becomes the development trend of Raymond mill. ZENITH today introduce you the application of the Raymond mill in various fields.

Improvements on the Technology of Raymond Mill

The most direct improvement of the high pressure grinding mill is the high pressure spring system for the roller part so that the grinding range of the high pressure grinding mill becomes wider than that of the Raymond mill.Small Raymond mill has stereoscopic structure and small in size compared with other grinding mills. Raymond mill industry has developed rapidly in recent years, and it has been widely developing in all the business from all walks of life. It also becomes the development trend of Raymond mill. zenith today introduce you the application of the Raymond mill in various fields.

According to the present market, the large capacity raymond mill is highly needed, so we have developed a new kind of high-tech grinding mill to meet the requirements of customers from home and abroad, which is our latest products coarse powder mill, it is the ideal equipment to substitute raymond mill, ball mill and other traditional mill which only process fine powder materials.

ZENITH is the professional manufacturer of complete sets of mining machinery, for example, aggregate mixer, cement mill price Welcome all of you to visit our official website.

1, the ceramic industry: Raymond mill in the production of ceramic raw materials can achieve high particle fineness, big drying shrinkage, and low sintering temperature characteristics, which can greatly reduce the sintering temperature and shorten sintering time.

2, coating areas: coating powder produced by Raymond mill can well keep powde’s dry degree, improve the coating durability and toughness. Raymond mill can prevent electrostatic interactions, sealing ability is very good, so as to prevent the pollution from the outside.

3, paper: paper powder after Raymond mill special processing technology of its unique acicular structure can still be preserved intact.

Zenith Raymond Mill Can Satisfy the Demands for Cement

At the present society, with the development of economy and civil construction, the need for cement is increasing day by day, which has led to the development of Raymond mill because it has high efficiency in cement production. In cement production; the traditional grinding mill has some obvious disadvantages such as large energy consumption, accounting for 70% of total electricity consumption of cement.

The cement mill machine is with stable and repable working condition. Zenith is a famous cement mill manufacturer in China, and we can supply high quapty machines for cement plant in China and other countries such as India mini mobile crusher price, USA etc. In addition, we can also supply all types of mining equipments such as stone crushers and grinding mills for stone quarry, stone grinding, metallurgy, and other mining industries

Therefore, it is the cement manufacturers requirement that it is urgent and important to solve the problem of how to reduce the energy consumption which will greatly reduce cost and improve efficiency. At the moment when saving space in the cement kiln is becoming smaller and smaller, improving the cement grinding plant system would be helpful to the cement industry. Cement micro powder mill is composed of feeding part, discharging part, turning part and driving part (reducer, small driving gear, electric motor and electric control). The quill shaft adopts cast steel part and the pner is detachable. The turning gearwheel adopts casting hobbpng process and the drum is equipped with wear-resistant pner, which has good wear-resistance.

Raymond mill plays a key role in grinding production line

Raymond mill is the most commonly used grinding equipment in the market, it makes the material into finished product, and it is a leader in the grinding production line. After the materials are crushed to the desired particle size, the elevator send it into the storage hopper, and then vibrating feeder continuously puts it into the Raymond mill chamber, due to the effects of centrifugal force, the roller swings outward and pressed on the grinding ring, the shovel puts material into grinding roller and grinding ring, because of rolling of the roller, the whole grinding process could be achieved.

In the design of large industrial milling process, after the production scale and product structure are basically determined, how to reasonable allocation grinding mill, it will directly affect the design of milling system, process effectiveness and economic efficiency. Output is an important index in the design of milling process, grinding mill is related with the model of grinding mill , the choice of the machinery, and the size of investment. The mill is the core equipment in the milling process; the grinding effect is related to the flour yield, output quality and other economic technical indicators. Now most of the milling processes select type and quantity according to the production.

Raymond mill is essential in the grinding production line, we should be careful in selecting Raymond mill. We should reasonably determine mill type and quantity; it can make a more rational design of industrial milling process. Our grinding mill manufacturer have been walking in the mill powder forefront on science and technology, our company is the earliest importer of foreign advanced technology in developing ball mill, Raymond mill, high pressure micro-powder grinder, etc. and now it has completely independent R&D hyper pressure v type grinder, European version Raymond mill, and it has been pushing the Chinese mill technology to the world technological frontier.

Grinding Ball Mill Will Go the Way of Energy Conservation

Grinding mills are mainly used to grind all kinds of minerals in the industries of ore beneficiation, building material and chemical engineering and the energy consumption of grinding mill is very high. It’s reported that the industrial enterprises consume 70% of the whole society’s energy which causes much pressure to the social resources. Therefore, it’s very necessary for manufacturers to put the energy conservation and emission reduction into practice.

Data shows that ball mills used in the mining machinery industry consume 40%-50% of the power needed in the production process; ball mills applied in the cement industry cost 70% of the total power. Among the total national power, ball mills all over the country will take up 2%. This results in serious energy and material consumption. As China gets short of quality coal and minerals, materials with poor quality are put to use in the industrial production, thus decreasing the crushing efficiency of ball mills.

Through continuous technical and product innovation, our company researches and develops an entire series of high efficient ball mills based on the principles of material science, material testing, failure analysis, tribology, systematic engineering, surface engineering, industrial design and mechanical principle. Compared with the traditional one, new ball mill can save electricity as much as 30%-40%, increase 5%-30% of the production and reduce 50% of the consumption of wear resistance castings.

There are different steel balls with different specifications installed inside the cavity of the energy saving ball mills. Materials are crushed by the driving force transformed from the gravitational potential energy, and then crashed other materials through the scale board, thus realizing the multiple crushing effect, saving electric energy and completing the whole crushing process quickly and effectively.

China has been the second country that consumes the most resources and energy in the world. To push the national economic structure adjustment and change the economic growth, China starts to stick to the policy of energy saving, consumption reduction and environmental protection, so it’s true that ball mills are going on the way of energy saving and emission reduction.

Ultra-fine grinding mill conforms to the trend of our times

Ultra-fine grinding mill referred to micro-grinding,it mainly composed by the host, blowers, ultra-fine analysis machine, finished whirlwind plot powder, bag filter and connecting duct pipes and other components. According to the user’s needs this grinding mill can be equipped with a hoist, storage silos, control cabinet, powder feeder, crusher and other auxiliary equipment.

Through special modification, the use of the field can expand exponentially. Many new industrial products using ultrafine powder materials as additives, and greatly improve the product’s original strength, flexibility, abrasion resistance, high temperature resistance, aging resistance diesel jaw crusher, radiation protection, at the same time greatly reduce the cost of production.

●Environment-friendly
The application of pulse bag filter and muffler greatly alleviates dust pollution and noise.

●Advanced intelligent speed control device
Convenient adjusting, more uniform particle size.

● High Efficiency
Under the same finished final size and the same motor power, the capacity of micro powder grinding mill is twice as much as jet mill, mixing grinder and ball mill, and energy consumption decreased 30%.

Features of Ultrafine Grinding Mil

A. Big crushing ratio,Feeding granularity ≤ 8mm,Once crushed to gain -10μm products. Simplified the process, ancillary equipment, small footprint and less investment in equipment.

B. Grinding machines equipped with automatic slagging device can be continuously exclude the difficult grinding the gravel sub and impurities in machine to improve the quality of the product and reduce energy consumption.

C. For widely used,simple operation, flexible adjustment, dry vacuum operation, reducing dust pollution.
● Long lifecycle of spare parts

The ring and roller are forged by special material with high utilization. Under the same grinding material and finish special size, the lifecycle of spare parts is about one year, which is 2-3 times longer than impact mill or turbo mill. Furthermore, the lifetime can reach 2-5 years for grinding calcite carbonate.

● High safety and reliability

As no rolling bearings or screws in grinding cavity, there are no problems caused by bolts shedding or rapid wear of bearings and seal components.

● High fineness, flexible adjustment

The final fineness of the grinding materials can be adjusted between 325 meshes and 2500 mesh (47-5 micron), and the product fineness can reach D97≤5μm.

Grindidng Mill— Choose the Appropriate is The Key

In the progress of the times, people's vision in the open field, produced in the use of grinding machine, people have not only pay attention to the economic benefits, but to find an economic benefit and environmental protection point of balance in the effort. After all, now the air quality is not optimistic.

At present, Raymond mill  and our strength flour mill, high pressure mill etc, are the industry's most advanced technology, combined with the actual situation at home and abroad, keeping the intimate design and the most effective to practical application.

For example, Raymond mill ball mill efficiency is high, we has low power consumption, covers an area of small features, these features make the equipment smaller one-time investment. Raymond Mill we have a characteristic in the design, that is function of grinding roll under the centrifugal force in the grinding ring tightly compacted, so even if the grinding roller and grinding ring wear to a certain degree, also won't yield and fineness, effectively extending the replacement cycle grinding ring roller. Intimate design this design is the zenith of designers to create products for customers according to the amount of loss, from the source to the customers save money.

Vertical roller mill used for grinding the Mohs hardness is not more than 9.3 level, humidity below 6% non flammable and explosive mines, metallurgy, chemical industry, fine powder processing building materials and other industries more than 280 kinds of material, the fine grinding particle size to 1000. The special regulating device inside the machine, also can produce 30-80 to coarse powder. Its application range, energy saving, good sealing performance, and reasonable price.

Zenith provides various milling machines,Raymond mill, fine grinding, vertical roller mill, ball mill, lm vertical grinding mill, which is your first choice.

Application of grinding mill in non metallic minerals industry

raymond mill

Promotion of superfine powder mill, such as Raymond mill , MTM mill, vertical roller mill,etc. particle size grading, dry grinding and dry purification, microwave activation and microwave drying, low temperature (energy) calcination purification technology, purification, mineral surface modification / remodeling, composite, preparation of nanomaterials and other deep processing technology.

Comprehensive utilization technology of development of talc, kaolin, bentonite, refractory clay, fluorite, crystalline graphite, calcium carbonate and other important non-metallic mineral resources of lower grade, graphite, quartz and other bulk products processing and downstream purification technology of new products, new surface modification agent, dispersant, stone conservation agent and other key production materials technology and application.

The development of vertical roller mill and other large scale mill, dry and wet fine grading equipment, microwave activation and microwave drying equipment of non-metallic mineral processing, machine of large continuous powder surface modification, large direct heat type mineral powder with high efficiency and low cost continuous calcination kiln, meet the high aspect ratio and large equipment wollastonite, large diameter thick narrow distribution of mica the special processing technology, the crystal structure of the protection, high performance, non metallic mineral functional filler / product preparation technics and equipment. Promotion stone circular saw, chain saws and other comprehensive utilization technology arm of mine mechanized mining technology and crusher of gravel, stone powder.

Optimization of mining. Promote the use of advanced technology, on the mining of the scientific design, optimization of mining scheme, improve the utilization rate of resources, scientific governance for coal mining waste, wastewater, subsidence area, repair damaged the mine ecological serious, new development projects to promote resource development and environmental protection, ecological restoration.

Strengthen the ore and tailings management. The use of advanced processing technology and technology, improve the product purity and quality, improve the recovery rate of ore dressing. Encourages the use of advanced technology, the milling machine, crushing machine, improve the recovery of a total of associated mineral utilization level, increase the tailings management, encourage the separation, recovery and effective mineral or ingredients from tailings, support the development of downstream products with tailings as raw material.

The promotion of cleaner production. To strengthen the whole process of production management, to establish the energy measurement management system, reduce energy consumption and waste emissions, encourage processing base of non-metallic minerals and industrial zone development of circular economy and eco industrial parks, promoting clean production, to carry out the research and application of waste resources.
Attach technology and processing equipment, to maximize the use of existing mineral resources for processing production, and the use of advanced technology and excellent mechanical, can greatly enhance the work efficiency, have good effect for the healthy development of enterprises.

Grinding Production Line

grinding mill

Grinding Production Line

Grinding plant consists of mainframe, speed reducer, powder separator, blower, bag filter, pipes, cyclone, motor, etc. The peripheral equipments are jaw crusher, bucket elevator, feeder, hopper, electric control panel, etc. Grinding mill can grind all kinds of non-flammable and non-explosive minerals with Moh’s hardness lower than 9 and humidity less than 6%，and is widely used in metallurgy, manufacture of building materials, chemical industry, mining industry, etc.

Working Principle

Large materials are crushed by Jaw crusher to the needed sizes firstly. Then the materials are elevated to storage hopper by bucket elevator, Thirdly, the materials are fed into the grinding chamber for grinding by vibrating feeder equably and continuously.

The powder after grinding goes upwards together with the airflow, after separated by powder separator, those which can meet the fineness requirement enters into the cyclone powder collector through pipe together with the airflow, and then discharged from the discharge valve as final products. The airflow is sucked into centrifugal blower through wind recycling pipe at the upper part of cyclone powder collector. The mainframe is driven by the speed reducer through the central axis in the mill.

The stand connected with the upper part of central axis, at the stand, rollers are set and by which the vibrating pivot formed. Below the stand and rollers there is shovel system. Materials are fed into the space between rollers and shovels when they are turning, and then be grinding by the pressure produced when rollers are turning, thus powder is made.