Announcement of Great Wall Machinery co.,ltd trademark modification

Dear customer:

　　Thank you very much for your continuous support, In order to further enhance the corporate image, build brands, Improve Xinxiang Great Wall Machinery’s brand influence and recognizable, With immediate effect, The company's original Logo will be replaced.

　

　　This is the first time to replace the corporate logo, since its founding in 1958, Also, this is a major leap of the internationalization, then, our Website, promotional materials, business cards, contracts, quotations, image advertising and other documents, will be replaced by the new logo Gradually, During this period, The new logo and the old logo has the same effect, If this bring you any inconvenience, Please understand, we would be grateful!

　　Hereby notify!

　　Xinxiang Great Wall Machinery Co.,Ltd

　　On August 25, 2015

Great Wall Machinery Under-construction Projects Introduction in July

Great Wall Machinery, as a leading enterprise of domestic industry in the field of general slag powder grinding production line, regardless of declining current market, still win many orders of largeslag powder production lines this year. Now Greatwall is still busy in business negotiation, production arrangement, quality control and proceed the orders. So what are the Great Wall Machinery’s construction projects? Let's enjoy it.

　　Firstly Harbin slag powder EPC project with annual capacity of 350,000t

　　Harbin project was started in January 2015, and was officially launched on April 25, 2015. Now it has now been installed with online debugging.

　　Secondly, Mei Country slag powder production line EPC project with annual capacity of 300,000t

　　Mei Country project was started in February, 2015, and was officially launched on April 25, 2015. It is at present installed well, and the dust collector’s installation is 70% completed.

　　Thirdly, Foshan EPC production project with annual slag powder capacity of 600,000t.

　　Foshan project has started on June 14, 2015, right now frame is almost completed, and the next step is on the way.

　　Fourthly, Xianning superfine slag powder production line EPC project with annual capacity of 300,000t

　　Xianning Project was launched on June 13, 2015, at present the blast furnace has been installed completely, and the welding bridge of vertical grinding machine is beening welded.

　　Finally, Xuzhou steel slag powder production line - EPC project with annual capacity of 300,000t

　　The Xuzhou Project contract was signed in February 2015, and was officially launched on March 24, 2015. Now it is currently online debugging.

Focus on quality, The whole world spread "sincerity"

The starting of August,The Great Wall steel casting have good news again!!In 2015 after success in Germany, the United States, Russia and other overseas markets, the Great Wall steel casting, 11 slag pots was sent abroad, exported to India, Finland .

　　It is understood that the slag pot delivery, there are 6 more continue to India's Tata steel group, 5 pieces were sent to steel mills, Finland, so to speak, the Great Wall of casting steel slag pot for the international iron and steel group provide a solid guarantee efficient production, confirm the Legend in the market “the casting from Great wall,trust of selected.”

　　Since company established, in order to practice "trustly character base, heartly quality cast." service commitment, the Great Wall of cast steel insist on high quality casting + perfect quality production management, has been higher than the international standard quality control methods, and strict inspection of the production process, ensure the casting out of slag pot, gear ring, node, quality first-class, quality is reliable, welcome by customers at home and abroad for many years, has been successfully exported to Japan, South Korea, the United States and other more than 50 countries and regions.

　　The bell has just rung in the second half of 2015, a new starting point, new journey, the opportunity is fascinating, development is full of confidence, horn and finally have a good news, GREAT WALL PEOPLE will full power, to run in high quality casting for the customer the journey...

The "Three-Step" Service of Great Wall Casting Steel

Castings manufacturing industry is the basis for the national equipment manufacturing industry, is an important indicator to measure the country's comprehensive national strength, large steel castings is particularly important, widely used in utilities and other large steel castings metallurgical industry, which is directly related to the country of manufacture the quality of key projects, the national economy has a very important significance.Great Wall steel casting can provide  complete customer service.

　　Pre-sale Design:

　　Work as a good proposer and assistant to customers, so that every customer will get sufficient profit.

　　(1)Proposals for steel castings production according to requirements of customer’s drawings;

　　(2)Design and manufacture the parts according to customer's special requirements;

　　(3) Engineering and technical personnel to the site for end user to plan the site, design the best processes and programs.

　　Sales Control:

　　Respect customers, communicate with customers in time, continuous improvement, and focus on customers’ value maximization.

　　(1)Respect for each of customer's views to facilitate goal of win-win transaction;

　　(2)Immediate feedback to customers about progress of contract, to ensure the smooth delivery of steel products;

　　(3)To assist the customer in the development of production processes.

　　After-sale Service

　　The end of the sale does not mean the end of service, we will supply continuous and reliable service for customers to solve the after-sale worries.

　　(1)Free of charge to the special sales staff, arrived at the scene to help customers install and debug;

　　(2) one year’s warranty period for spare part. Quality-caused problems are free for maintenance within one year;

　　(3) The customers are free to call us anytime during operation process, if it can not be resolved by phone call, we will send professional and technical personnel to customers’ site;

　　(4) Greatwall Steel Casting Company has been providing customers wide range of steel production and processing services for many years. As long as you supply the drawings, we can produce accordingly for you.

　　Reasonable prices, excellent products and perfect service, Great Wall steel casting is the optimal choice of casting steel processing services.

Cement equipment sale in China

Cement production line is composed of equipment like crushing machine, grinding machine, rotary kiln, and packing machine etc

Introduction of Cement production line

      Cement production line is the production line composed of a series of cement production equipment, mainly including crushing, prehomogenization, raw material preparation and homogenization, preheating and decomposition, sintering of cement clinker, cement grinding and packing and so on. Great Wall Machinery can provide general contracting of new dry process cement production line from design, manufacturing, installation, debugging and capacity and standard reaching (turnkey project) to customers, helping customers save efforts, energy and start cement production with high efficiency.

  As A leading Cement Plants Manufacturer Great Wall Machinery Co.,LTD offer all type of quality Turnkey Cement Plants, setup machineries, cement plant equipments, heavy industries setup and fertilizer plants. besides cement plants we also known for industrial gears supplier and equipments manufacturers like vertical mill, ball mills, rotary kilns, belt conveyors and other material handling equipments for cement plants equipments ect.

 Our Satisfied Customer Return Ratio with the support of our skilled Cement Plant expert we are successfully installing cement plants in India, Middle Asia ,South America and South African countries. With All latest cement plant equipments and material handling equipment and machines we are capable to manufacture up to200TPD-5000 TPD cement plants.

We Manufacturing all type of Material Handling Equipments and Storage Units for the Cement Plants like: Bucket Elevators, Conveyors, Gate and Air Sliders and complete packaging units. We also provide maintenance services for existing Cement Plants in all over The World.

Timely and Fast Delivery

Great Wall Machinery is equipped with large steel foundry and machining workshop, which ensure the fast and high-quality production of the related equipment of cement production line. Besides, the goods are delivered in time, reducing time costs of customers.

Excellent Service

The company provides all-round service to customers, including project design, operation training, technical support and so on, making customers use our products safely and produce efficiently.

Mature General Contracting Project

The company has a domestic first-rate technical team. The company can design detailed general contracting project according to the actual situation of customers, and provide one-stop turnkey service from building projects to production and operation.

Advanced Dry Process Cement Production Technology

The cement production line launched by the company adopts the well-received new dry process cement preparation technology, which reduces heat consumption effectively, reducing production costs and improving the benefit.

please contact us for more details.

 Configuration

Output	Raw Meal Grinding	Coal Grinding	Clinker Calcining	Clinker Grinding
500 t/d	Φ2.2×7m Raw Ball Mill	GRMC12.21 Vertical Coal Mill	Φ3×11m Vertical Shaft Kiln	Φ2.2×7.5m Cement Mill
700 t/d	GRMR22.31 Vertical Raw Mill	GRMC12.21 Vertical Coal Mill	Ф3×48m Rotary Kiln	GRMK30.41 Vertical Cement Mill
1000 t/d	GRMR22.31 Vertical Raw Mill	GRMC12.31 Vertical Coal Mill	Φ3.3×52m Rotary Kiln	Φ2.6×13m Cement Mill
1500 t/d	GRMR30.31 Vertical Raw Mill	GRMC16.21 Vertical Coal Mill	Φ3.5×54m Rotary Kiln	Φ3.5×13m Cement Mill
2500 t/d	GRMR38.41 Vertical Raw Mill	GRMC20.31 Vertical Coal Mill	Φ4.0×60m Rotary Kiln	Φ4.2×13 Cement Mill (2 Sets)

A complete cement plant price

Cement Production Line

Cement production line: cement making plant is used in cement raw material crushing plant. Limestone crushing: limestone is the main raw material for cement making, but since natural limestone is usually big, we use limestone crusher to crush.

The Major Equipment of Cement Production Line:

The main equipment of cement production line are vibrating feeder, jaw crusher, impact crusher, cement ball mill, lifer, preheating system, cement rotary kiln, rotary dryer and packing machine and so on.

Cement Manufacturing Process:

The Handling Materials and Advantages of Cement Production Line:

Cement Production Line is used to crush soft or medium hard stone (like: limestone, gypsum, marble, calcite, dolomite, etc) from 500mm down to about 0-5, 5-10, 10-20, 20-40mm (or other sizes according to your need) as aggregate for construction. With it, Great Wall Machinery can provide you the well-shaped cubic final products, with low energy consumption, low cost, easy maintenance, and high efficiency.

The Application and Function of Cement:

Cement in powder form can be changed from plasticity paste to hard stone-like body and can become a total cemented granular material through physical and chemical processes after being mixed with water. So cement is a good mineral binder. Cement can be not only hardened in the air, but also better hardened in the water in which it will maintain and develop strength. So cement is kind of cementitious material which will be of stronger hardness in water. Cement mill is used for cement grinding. Cement crusher is applied for cement crushing. In cement mining, you need to choose suitable cement grinding mill and cement crusher.

Vertical roller mill

Currently, the domestic large vertical mill manufacturers are not producing medium and small-sized vertical mills while small vertical mill manufacturers are not capable of making design and producing equipment for whole production line.

 Features

　　Product Application

　　GGBS production line, coal powder production line and other processing industry related to metal and non-metal mine.

　　Processing Material

　　The vertical mill is mainly used for grinding raw meal, clinker, Ground Granulated Blast Furnace Slag, iron ore, limestone, coal powder, coke powder, coal gangue, fly ash, volcanic ash, gypsum, calcite, pyrophyllite, quartz, clay, sandstone, bauxite and other processing industry related to metal and non-metal mine.

　　Product Introduction

　　Currently, the domestic large vertical mill manufacturers are not producing medium and small-sized vertical mills while small vertical mill manufacturers are not capable of making design and producing equipment for whole production line. In order to enable the small and medium investment owners to select the supplier without any difficulties and according to market demand, Great Wall Corp is able to make design and provide technical proposal and equipment for the whole slag powder production line with the annual capacity of 300,000 t, 600,000t,1000,000t, and 1500,000t. The main technical and economical index can reach the domestic advanced level and the mill has the features of reasonable structure, advanced technology, high stability and reliability when operating.

　　The vertical mill has also been widely used and promoted in the electric power, metallurgy, chemical industry, non-metal industry because the overall efficiency attributed to energy-saving and low consumption is becoming more and more evident in the cement industry.

　　GRM series vertical roller mill is developed with the features of high efficiency, energy-saving and environmental protection which is achieved after exchanging ideas with senior experts from home and abroad and making improvements based on same sector experience in the past years.

　　 Great Wall technical center can help our client to finish feasibility study, environment impact assessment and safety assessment and also provides turnkey service with high efficiency.

　　Great Wall has its own various processing equipment and takes strict control measures on product quality, which results in fast delivery within a short time. Besides, Great Wall can guarantee completion and operation as scheduled with its strong service team for installation and after–sales service.

　　Flowsheet of slag production line

　　01.Material feed hopper(wet material);02.Material feed hopper(clinker,dry material);

      03.Weigh feeder;04.Belt conveyor; 05.Magnetic iron remover ;06.Metal detector ;

      07.Material separating valve;08. Hopper for metal material;09.Rotary discharge valve;

　　10.GRM vertical mill ;11.Rotary discharge valve;12. Sealed air pipe (with fan);

      13. High fineness and dry material feed hopper ;14.Dust collector;

      15.Rotary discharge valve;16.Gas flow measuring system;17.Fan;

　　18.Stack (with regulating valve);19.Circulating pipe (with regulating valve) ;

      20.Cool gas valve;21.Blast furnace;22.Material return system ;23.Bucket elevator;

      24. Material separating valve;25. Magnetic drum separator;

　　Great Wall Machinery can provide vertical slag mill production line with simple process flow, high grinding efficiency, high drying capacity and high classifying efficiency. It is very suitable for small and medium investor because of its remarkable features of adjustable fineness, minimal sound emission, lower energy consumption, high automation and low operating cost. Specific surface area: 4200～4500 cm²/g, system energy consumption: ≤43 kWh/t, dust emission ≤30mg/Nm3

　　Characteristic Features

　　1) High grinding efficiency and lower energy consumption

　　2) Lower metal consumption per unit of product

　　3) Grinding on the material layer bed, minimal sound emission

　　4) Operation under negative pressure and minimal dust pollution

　　5) Simple process flow with the combination of grinding, drying and classifying in a single unit

　　6) Less land occupation, tight layout, light weight, lower civil works cost

　　Structure of vertical mill　

　1) The combined classifier improves the powder selection efficiency.

　　2) It is not necessary to distribute material on the grinding plate before start-up. The roller can be lifted up and down automatically and start without load.

　　3) It is well sealed by welded arc plate and structure is simple and reliable

　　4) With the help of roller turning device, it is easily to turn the roller out for maintenance.

　　5) Both sides of roller sleeve can be used so that the service life of refractory material is extended.

　　6) Grinding roller limit device can ensure a certain space between roller and grinding table, which avoids the direct friction and collision between roller and grinding table and enhances safety

　　7) The grinding roller is driven by spinning grinding table. Pressure filling and adjustment and roller lifting can be remotely controlled without operator on-site.

　　8) The roller bearing is circularly lubricated by thin oil to enable it to work under low temperature and clean grease so that the service life is extended

Ball mill energy saving tips

 As is known to all, ball mill is the key equipment in dressing plant, its energy consumption is the largest of the mill plant, accounts for about 50% of the entire plant energy consumption. In todays demanding society, energy saving and emission reduction to reduce energy consumption of ball mill is imperative. Yantai xinhai mining machinery co., the technical personnel after years of ball mill research summarizes several ways to reduce energy consumption of ball mill:

　　Energy-saving ball mill

　　1, the lattice type ball mill instead of the overflow type ball mill

　　Grid type ball mill than the overflow type ball mill not only has low row ore mouth pulp surface, pulp by fast speed, can reduce the ore crushing, holds the ball more, can be mounted ball, you can also use the balls at the same time, due to the row of ore terminal is equipped with grid, ball will not be pulp out of the barrel, and can form good working conditions. And grate type ball mill is higher than the same specification of the overflow type ball mill production by 20% ~ 30%, and can save power by about 25%.

　　2, rolling bearing instead of sliding bearing

　　Overcome rolling rolling bearing low friction coefficient, ball mill rolling bearing frictional resistance required power consumption is lower than sliding bearing. Rolling bearing in normal working conditions at the same time, the main bearing of 10 years without replacement, save overhaul, maintenance costs, improve the operation rate of ball mill.

　　3, adopt pneumatic clutch to replace the ordinary clutch

　　Pneumatic clutch can successfully implement segmentation starting synchronous machine, ball mill, and can make motor no-load starting, to achieve stable operation speed, and to integrate the clutch starting ball mill. This can make the motor itself starting time, starting easily, reduce the starting current of the impact of the Internet, also reduce the ball mill equipment installed power.

　　4, with rubber lining

　　Rubber lining board is a kind of high wear-resisting performance non-metallic materials, practice shows that wet grinding machine with rubber lining, mill unit may generally lower energy consumption, reduce about 10%, production capacity increases by about 5%. In addition to the service life of rubber lining generally about 2 ~ 3 times of alloy plate, it is worth mentioning that Yantai Xinhai wear-resisting rubber industry co. Use wet formula design, combined with the performance of the dispersion of nano composite technology is excellent wear-resisting rubber, excellent wear resistance, its service life is 3 ~ 4 times of ordinary rubber.

　　In addition, there is a kind of the method can reduce the energy consumption is to use a new type of ball mill, xinhai ore independent research and development of ultrafine laminated since mill, than ordinary ball mill energy consumption can reduce by 60%, its basic reason lies in the mill row ore mouth in the lower row of ore block, so that the ore pulp of buoyancy, ore crushing each other, is worthy of the name and energy-saving grinding equipment.

Crushing and Homogenization of Dry Process of Cement Production

 1) Limestone Crushing

　　During cement production process, most raw material needs to be broken, such as limestone, clay, iron ore and coal, etc. Many cement enterprises generally adopt pre grinding technology. Limestone is the largest raw material, with large particle size after exploration, higher hardness, so limestone crushing occupies more important position in cement factory crushing process.

　　Crushing process is more economical and convenient than grinding process. The reasonable choice of crushing equipment and grinding equipment is very important. Size of raw material, the smaller the better, before being put into grinding equipment to reduce the load of grinding equipment, and improve mill's production. Materials after broken, can reduce granularity material separation phenomenon in the process of transportation and storage, and it is advantageous to uniform raw ingredients, improve the accuracy of the ingredients.

　　2) Raw Material Pre Homogenization

　　Raw material pre homogenization is to achieve initial homogenization, using scientific material piling and taking technology in the storage and fetching process, finally to make the raw material yard and function of storage and homogenization at the same time.

　　The basic principle of raw material pre homogenization is that: when materials are piled up, the stacker will make raw materials continuously in a certain way into mutual parallel, overlapping and up and down as much as possible to form the same thickness of material layer. When picking up material, it is recommended in the perpendicular direction of the material layer, trying to cut out all the layers at the same time, as far as possible, until the end, namely" flat laying, straight picking".

4 methods to reduce vertical mill power consumption on GGBFS producction line

　Mineral powder vertical mill is a kind of machine used in slag production line which can be regards as an energy saving machine. The maximum load of the vertical mill system mainly comes from the main motor and the circulating air blower, which approximately takes up 70% power consumption. So, the key of system power saving is reducing consumption of main motor and circulating fan.

　　1.energy consumption of vertical mill

　　There is no obvious differences of slag vertical mill in working principles, but different process condition, material, operating parameters and methods. So, the operators must observe and analysis the system trending and changing chart on various important parameters such as differential pressure, material-layer thickness, milling pressure, temperature, vibration value, wind consumption, etc. Through the change of continuous multiple points, the law of variation for a certain period of time can be derived, and the random fluctuations and abnormal fluctuations could be judged correctly. When abnormal fluctuations occurs, they can be identified quickly and take measures to solve them only in this way, rather than blind adjusting as soon as slight fluctuation. Therefore, the parameters of lowest energy consumption per unit could be found on the basis of summary judgment, so as to stable running, low consumption, high capacity and operating rate.

　　During the comparison results, it is not only concern the capacity and quality, but also the per unit consumption, so as to determine whether the operator has the best quality for the selection and control.

　　2.The power of circulating fan takes up about 35% of total system power consumption, reducing the air can effectively reduce the fan power consumption. If wrong operation and the system can be controlled by the high speed, the production quality only can be held by increase separator speed. However, in spite of stable running it keeps, the currency of circulating air blower and separator is too high, so as to increase power consumption.

　　In additional, if wind leaking in the system, which affecting the normal wind supply, it will turn up circulating fan valves. Eventually it will increase the fan loadings and power consumption, affecting mill capacity somehow.

　　Therefore, controlling the wind supply and avoiding leakage as possible is very important.

　　3 The adjusting of gear rings

　　According to the operating conditions, the status of mill plates, rollers and liners must be regularly inspected. Adjusting on time the height of gear ring in case of milling reduction, caused by the thickness of material layers, which can be further results motor loading and currency increasing.

　　In the meantime, do not ignore the abrasion condition of scraper and the distance to the mill floor, which still can influents system consumption.

　　4 .Increasing capacity and equipment operating rate

　　Powder mill yields the best performance in the maximum stable capacity. Increasing output is not the simply pursuit of high capacity, but maximize the performance of device in the possible range. Also, the continuous running is necessary. It not only can keep stable working status and appropriate running parameters, but also decreases the power consumption when start/close. So increasing capacity and operating rate, avoiding unnecessary start/stop actions, can reduce system power consumption to a certain extant.

　　In summary

　　Emphasizing every step and process in the whole GGBFS production line and gradually optimizing the whole system can reduce the power consumption, save costs and improve production competitiveness.

　　.As the operators working in frontline on slag production line, it is not only needed to know the new technology and trends, but also master power saving methods and managements, as a result of clear thoughts and direction in managements, and success in energy saving field.

The maintenance of Ball Mill

   Ball Mill repair and maintenance are crucial for assuring manufacture efficiency. If not maintained properly, ball mill run-time will be reduced causing substantial economic losses.

　　1. The operators must be qualified with the required technical knowledge, receive technical training and fully understand the operating principle, performance a regulations of the ball mill.

　　2. The operators should follow the operate principle and lubricate the requirement parts marked in lubrication picture. Untreated waste oil may not be used and keep lubrication points clean.

　　3. Pay attention to check the temperature of bearing not to exceed 60 ℃ and make sure every bolt not loose, no abnormal sound, uniform mining feed, steady water feed, normal current, voltage of motor.

　　4. To keep surroundings clean where the ball mill run. Every party should be clean unless it's running.

The advantages of Great Wall coal mill bearing block

The choosing of coal mill bearing block is very important. Regard to its effect and requirement, the bearing block must have high strength and abrasive resistance, at the same time, it must have a certain number of vibration damping performance. Great Wall Casting is professional large casting manufacturing factory. Our products have a wide coverage. In an other word, any large castings over 1 ton, Great Wall Casting can manufacture for you.

　　Three reasons for choosing Great Wall Casting’ s coal mill bearing block.

　　1.Good materials, high degree wear resistance.

　　Great Wall Casting’ s bearing block use the SCW480 steel materials. It effectively ensure the quality of finished products. By the experience testing, our bearing block can steady, effective running with little loss during long time and high load running.

　　2.Completely monitor equipment, master the running station in time.

　　Under the bearing block, there is a oil monitor mark, the operator can see the oil amount at any time, can supplement the oil at time, prevent the poor lubrication as lack of oil and avoid the damage of bearing.

　　3.Reasonable structure, for long-term stable running.

　　Without the bearing outside shell and avoid the dust come into bearing box. Insure the bearing usage time, running stable and safety.

　　The advantages of Great Wall Casting’s bearing block are quite many. If you have any demands of purchasing bearing blocks, take a visit to our factory will not let you down. We look forward to your visit.

Bauma conexpo Africa 2015

September 15-18, the second Bauma Conexpo Africa 2015 will be held in Johannesburg, South Africa. Xinxiang Great Wall will based on this best platform, come out of China and develop the oversea market, making the “Xinxiang Great Wall, world’s Great Wall”. It’s reported that the sponsor wants to develop this exhibition to a well-known brands by its advantage in this industry. Bauma series exhibitions will be held every 3 years from 2015. Last Bauma exhibition has attract 38 countries and 754 exhibitors, including 123 South Africa enterprises and 631 foreign exhibitors come from China, Germany, India, Italy, Korea, Spain, UK and America. The visitors amount is 14700, 84% of visitors are come from South Africa, 6% come from other Africa countries, 10% come from other countries all over the world. This time, the exhibition scale is more large. We have set up the arrangement team for this exhibition. Xinxiang Great Wall Machinery looks forward to your visiting. (Booth No: H6.L36)

　　Regard to the Bauma exhibition, the principal of Great Wall expresses that: during Xinxiang Great Wall developing foreign market, Bauma exhibition is a very important opportunity. Before, Great Wall Machinery has joined the Shanghai Bauma. The exhibition is not only a place for trading, but also a effective way to let the brand come together with the world, let the customer get to know Chinese brand.