Better Choice for Energy-saving and Environment-protection - Great Wall Vertical Roller Mill

Recently, Revised Draft of Air Pollution Prevention and Control Law accepted by State Council executive meeting has drawn a heated discussion.

　　The Revised Draft stresses the source management and public participation. It also increases special provisions of collaborative governance and regional joint prevention and control of pollutants on key areas, industry, motor vehicles, dust, etc. It makes clear the punishment measures for undocumented, standard- exceeding discharge and fraud monitoring data behavior.

　　Air pollution caused by coal burning, industry, dust, etc is more and more severe, the Revised Draft requires key discharge units should install emission automatic monitoring equipment in accordance with the national standard, and other enterprises monitor its emissions of industrial waste gas discharge, also requires the implementation of equal or reduction replacement of coal consumption.

　　Serious haze weather in major cities makes people more and more worried in recent years, and requirements of air pollution management are more and more urgent. The air pollution problem is not only related to government's policies and laws, it is but also to improve the living environment.

　　Cement industry as an important factory in China, supplies the cement products for various fields, also provides an important research about the dust pollution and energy-saving problem.

　　Great Wall Machinery as professional cement equipment manufacturer of cement equipment including vertical roller mill, ball mill, rotary kiln, etc, has done many R & D tests on energy saving, environmental protection, abrasion resistance and automation. Great Wall Vertical Roller Mill is best in environmental protection, energy-saving, the highest degree of automation, enjoys character of large-scale production requirements of cement equipment. You are warmly welcome to visit our company!

2.6x13 m cement mill to increase production pathway

In the cement production proces,cement mill is one of the key equipment of cement,cement mill consumption accounts for about 60% -70% of overall power consumption of cement.Raw mill quality decisions and influence the technical parameters of cement rotary kiln,but if cement mill configuration is more reasonable,they can make up for some defects of cement clinker.Therefore,improve the output of cement mill,to realize high quality, high yield, low consumption of cement enterprises has very important practical significance.So, 2.6x13 m cement mill how to achieve high-yield it?The way to achieve high yield and quality and what it?

　　1. Reduce the grinding particle size

　　Cement companies use cement mill + roller mill grinding can be dropped into the mill size 2mm below, production increased by more than 50%.

　　2. Optimize the cement grinding process

　　The open system to the closed system, the addition of efficient rotor separator and bag filter,thus increasing the cement surface area,increasing the strength of the cement with good results.

　　3. Control the grinding material moisture and temperature

　　To integrate into the grinding material moisture control at 1.5%, is the basic premise of high quality and high yield of cement mill.Therefore,cement enterprise need water to mixing materials and material production process strictly control the water drying, grinding into the material temperature control process requirement within the scope of guarantee good operation of the cement mill.

　　4. Control the grinding material easy to grind

　　If you want to improve cement grinding production, you need to optimize the structure of cement raw materials, improve the material was grinding grindability.

　　5. Ensure the ventilation flow in the mill

　　In daily production, cement enterprises should fully realize the importance of the mill ventilation , at the same time, sealed to prevent air leakage to do the work. In addition, you can use powerful ventilation and bag filters and other measures to ensure the smooth ventilation inside the mill.

　　6. Adjust the grinding body in grading

　　According to the actual production needs in equipment configuration allows, appropriate to add the ball, loading capacity,to improve the mill output is very helpful.In addition, because the cement grinding mill work environment is harsh, often in direct contact with all kinds of cement raw materials,the wear is quite serious, therefore, should pay attention to the breakage of the grinding bodies.

　　7. Control the fineness of finished product

　　As we all know, the control index of cement fineness has a great influence on the cement performance. Cement enterprises can through the sieve analysis method to control the cement fineness, 0.08 mm sieve allowance to control in 1.8% 2.8% more appropriate.

　　Great Wall machinery since its inception, has been committed to the vertical grinding machine, tube mill, rotary kiln, the cement equipment research and development and production,is now with the slag/steel slag vertical grinding machine (mainly the EPC project), cement mill developed into China's large grinding system integration suppliers.If you have similar technical problems encountered in the production, you can seek advice to the Great Wall machinery!

Two Advantages of Great Wall Vertical Mill

After almost a decade cooperation with veteran experts on vertical mill manufacturing and scientific research institutes both in home and abroad, the GRM series vertical mills dedicated to be developed and produced by Xinxiang Great Wall Machinery Co., Ltd, have the characteristics of reliable performance, compact structure, convenient maintenance and outstanding energy saving etc. Here are two more important advantages of Great Wall vertical mill.

　　Wear protection

　　The grinding plant, which is carefully maintained by the owner, provided high availability and trouble-free operation. None of the wear protection plates in the mill housing and in the grit cone of the separator have yet needed replacing. Only the ceramic castable in the upper housing section of the separator was replaced by wear-resistant steel plates soon after the commissioning. Once a year, after approx. 3500 operating hours and production of 300,000t of ground blast furnace slag, the surfaces of the grinding elements are refurbished by build-up welding during a planned maintenance stoppage. The specific wear of grinding track and roller tyres, taken together, is 7.3g/t.

　　For long service life of the grinding tools not only the appropriate wear lining is important. The iron extraction system in the external material circuit is an extremely important feature of the Great Wall vertical roller mill for slag grinding.

　　Iron extraction system

　　It is a well-known fact that iron particles in the granulated blast furnace slag are the main cause of wear in the mill. Therefore it is extremely important to remove the maximum possible amount of this iron. The external material circuit is very well suited for this purpose, because it handles a large quantity of material, some of which is already partly ground.

　　The material passing through the nozzle ring falls onto a discharge ring rotating with the grinding table. This material then passes via a discharge chute into the bucket elevator.

　　The material discharged by the bucket elevator is fed to a vibrating trough, to ensure a uniform feed rate to a magnetic drum separator. The aeration of this magnetic drum separator is so designed that practically pure iron with no granulated slag is removed from the stream of material. After the magnetic drum, the recirculated material finally returns to the grinding table. The incoming granulated blast furnace slag has an iron content of 0.28%, corresponding to an iron quantity of 210kg/h.

　　The recirculating material in the bucket elevator has an iron content of 0.7%. The magnetic drum separator removes around 170kg of iron per hour in permanent operation. The iron contents found in the roller mill and in the finish product impressively illustrate the efficiency of the external material circuit for concentrating the iron and facilitating its removal. Such efficient extraction of iron in the grinding process has a very positive effect on wear in the mill.

　　In the world, many granulated blast furnace slag grinding plants are already in operation, but the number of granulated blast furnace slag grinding plants is still low. Customers from all over the world who are now interested in slag grinding are invited to send their inquiries to the Great Wall Machinery. Any of your inquiries will get prompt attention.

Mining World Russia 2015-XINXIANG GREAT WALL MACHINERY

As the MINING WORLD RUSSIA 2015 is upcoming, we are here to announce that

We are going to attend it as the exhibitor in Moscow. The business is globally in the industry of cement, mining, metallurgy, chemical, etc. Our booth information are as follows.

    Exhibitor: Xinxiang Great Wall Machinery Corporation

Booth No. : A501/2

Time: 21-23 April 2015

Venue: CROCUS EXPO exhibition center, hall 15, pavilion 3

Address: Moscow, 65-66 km Moscow City Ring (MKAD), Crocus Expo IEC.

Mining World Russia is the leading event for Russia’s mining industry. Every year the exhibition demonstrates the latest developments from Russian and international producers of crushing, sorting and digging equipment, solutions for transporting and storing bulk materials, spare parts and accessories for mining machinery, haul trucks, mineral processing equipment.

Xinxiang Great Wall Machinery Corporation establishes in 1958, located in Xinxiang City, Henan Province. We are a first-rate integrated service provider for grinding system. Great wall has over 50 years equipment manufacturing experience and total 1100 employees. Annual value of production is $1000 million dollars. We have supplied the EPC-“Turnkey Service” from engineer, manufacture, installation, commissioning to achieve designed capacity and standard for many customers at home and abroad

Welcome to visit our booth in the EXPO in 21-23 April 2015. If any business interests in our product, please feel free to contact us at vip@great-wall.co. Our business managers are available to meet you in 21-31 April 2015 in Moscow. 

Great Wall Machinery Service Commitment

Our Service Commitment

At GREAT WALL Machinery, we see the pursuit of customer satisfaction as a route to success. Our one-stop, single-window service increases your purchase efficiency by reducing the bureaucratic hurdles to complete the import and export process. Enforcing a strict quality control system while improving our service level ensures we take care of your turnkey project down to the last detail, from design, through manufacture, on-site installation, and commissioning, to final benchmarking.

To be specific, our integrated services mainly cover the following three aspects.

Design

Our technical experts are on hand to provide necessary design assistance. This makes sure that your investment pays for itself very well.

1. We offer you advice on model selection based on your specific need.

2. New product can be designed and manufactured according to your special requirements.

3. Our engineers undertake to design the site layout, optimize the process flow, and work out the processing solution.

Sales Follow-Up

At GREAT WALL Machinery, we fully respect our customers and would like to communicate with you on any possible improvement we can make in your present and next purchase. The purpose of our follow-up service is to maximize your value.

1. We love and respect each of your reviews on the purchase in effort to reach a win-win deal.

2. We take the initiative to contact you on how far the project has progressed. This is to ensure your project will be done right and on time.

3. We assist you in drawing up the construction plan.

After-Sales Service

The moment your purchase is completed does not mean the end of our service. A continuous, reliable after-sales service helps you solve your problems thereafter.

1. We send specialized service men to your site and assist you in installation and commissioning.

2. We appoint our technicians to train your operation staff so that your men can operate the machine smoothly and properly.

3. Each piece of equipment is given a one-year warranty.

4. Please contact us for any problems arising during use. If we can not solve your problem via phone, we would like to send technicians for on-site service.

5. Any time you need spare parts, please give us a call.

You can reach us at sales@gwmcn.com.

Service Team

Our service team is made up of 28 experienced engineers and technicians, who have years of hands-on experience in large-scale machinery installation, commissioning, operation training, repair, and consultancy. Among them, there are 8 mechanical engineers, 6 electrical engineers, and 7 civil engineers.

In addition, we appoint the chief expert in Chinese vertical roller mill industry to be our technical consultant, and maintain collaborative relationships with Tianjin Cement Industry Design & Research Institute and Henan Cement Industry Design & Research Institute.

Cohesive, aspiring, and responsible are three words that best define our team where 80% of us hold a bachelor’s degree or higher. By taking advantages of our knowledge and skills, we are all poised to provide you with standardized, professional, diversified, and individualized services.

Service Network

From day one, GREAT WALL Machinery has been seeking win-win solutions together with our customers by creating an extensive service network.

At the core of our service system is a professional team that delivers standard, high-efficiency, and consistently good-quality services. Presently, our service network covers Central China, East China, Southern China, Northern China, and Northwestern China, among various other regions. As our sale is still on the increase, we take steps to improve our after-sales service system. At the moment, we are expanding our service area beyond China to countries all over the world

Russian Customers Visit Great Wall Casting, Oversea Market Make Big Advance.

      As a leader in the casting industry, the Great Wall Casting has always attached great importance to international market, after years of effort, the Great Wall Casting already has customers all over the world.

　　Recently, in this spring abundant, flowers booming season, the Great Wall Casting ushered a number of Russian customers. This visit aimed at all-round, multi-angle depth understanding of the Great Wall Casting, and pre-understand and negotiate on slag pot production.

　　PIC: Russian customers and Great Wall Casting marketing director Zhang

　　This group of Russian customers and Great Wall Casting met at the 19th session of the Russian International Mining Machinery Exhibition. At the show, after a simple communicating , Russian customers to have a preliminary understanding of the Great Wall Casting. Many overseas famous enterprises’successful cooperation with Great Wall Casting, make the customers decided to go to China Xinxiang to have a visit.

　　PIC: Russian customers visit the Great Wall Casting workshop

　　Come into Great Wall Casting plant, the vitality of spring and clean the plant leave a good impression on Russian customers and they give us a high brownie points. Then with Zhang’s accompanied, Russian customers visited the foundry, machine shop, the inspection department. During this visit, Russian customers had a better understanding for our casting ability , especially when they see the large steel slag pot , ring gear, wheel belt and some other casts in the workshop, they said excitedly: "In Russia we has never seen such a large-sized steel products, steel Great Wall is very good ......." From simple words, we can see Russian customers’recognization of Great Wall Casting.

　　PIC: Russian customers visit Great Wall Casting inspection department

　　Coincidentally, during the visit, Russian customers encounter the world's largest steel group - Mittal Chinese representatives. After a brief communication, they knew that the Great Wall Casting was the manufacturers and suppliers of Mittal’s slag pot , they were far greater recognition of the Great Wall Casting.

　　After the visit, we had a good communicating in the conference room. Great Wall casting prepared tea and snacks for for the Russian customers, sharing the development of Chinese tea culture and the rise of the profound Chinese companies with them.

　　Before leaving, Russian customers are very satisfied with Great Wall Casting’s strength of the of steel, technology and services. And they said they will visit again next month, to deeper communicating and signed an agreement on slag pot purching. .

　　The Great Wall Casting will continue adhering the principle "for customer service, think what customers think, worry about customer needs" , take the quality as goal, take serve as protection, by the strength of the technology, making the new products, service the first class service to customers.

Great Wall Machinery are got attention in Chile, as Premier Li Keqiang will visit Chile

      During May 18-26, Premier Li Keqiang will be Chile. This year is the 45th anniversary of two countries established diplomatic relations and the 10th anniversary of the signing FTA.It is also the "Chinese Culture Year"in Chile.China and Chile will further signed the inter-governmental political, economic, financial, cultural, scientific and technological fields cooperation agreements, which provides a convenient political development for the Chinese enterprises.

　　As China's leading integrated grinding system supplier, Xinxiang Great Wall Machinery took the opportunity of two countries’ cooperation, introduce the large-scale grinding equipment to Chile market.It makes great contribution for its future infrastructure and mineral development.

　　PIC: Xinxiang Great Wall engineers talk with the world's largest copper mine business leader (right)

　　During the just ended 16th Chile Mining Machinery and Equipment Exhibition (hereinafter: Chile show), Xinxiang Great Wall Machinery’s large ball mill, rotary kiln, vertical mill and other equipment with high efficiency, high level of environmental protection advantages have attracted a large number of customers. Within two days, Xinxiang Great Wall has become the hotest exhibitors in the exhibition hall, especially the world's largest copper companies responsiblity came to our booth to discuss.We can see that, the Chinese brands has broken the original "silly, big, stupid" pattern,has successfully promoted to the world-class technology-based fields.

　　PIC: Great Wall Xinxiang responsiblity accept the interview from Chile exhibition organizers

　　PIC: Great Wall Machinery in Chile exhibition

　　It is worth mentioning that, with Premier Li Keqiang's visit to Chile, the Chile exhibition organizers held a “Q&A”promotion activities for Chinese exhibitors. Xinxiang Great Wall Machinery representatives was interviewed as the famous brand in China

　　It can be seen that Xinxiang Great Wall relays on its strong strength, and take the opportunity of political. We must be able to successfully develop the brand to Chile and the whole Latin America. And realized the goal “ create an international grinding systems integration supplier".

　　Xinxiang Great Wall machnery was built in 1958.In recent years, it is famous in grinding and industrial waste treatment. With its strong grinding strength and the perfect "one-stop" service model,Great Wall Machinery quickly open up the international market.