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The maintenance method of cement production line

The cement production line is one of the strongest industries that have self-purification capacity in industrial field; it can make industrial residues as raw materials or mixed materials, also can detoxicate hazardous waste and make innocent treatment.
Mining machinery manufacturing industry is the basis of the country to establish an independent industrial system, is also an important symbol to measure a country's industrial strength. According to the industrial policy of the State to key support for energy, transportation and raw materials and other basic industrial development, mining machinery as the pillar of these basic industries should get priority supported by the state to be further developed and improved; and provide coal, metal and nonmetal mines with the international advanced level of high-quality, efficient equipment to meet the needs of the national economy.
Cement production line is an important part of the mining machinery manufacturing industry. How to improve the operation rate, reduce the failure or accident rate, and reduce maintenance costs of new cement production line equipment is the development direction for enterprise. New cement production equipment management has gone through the regular maintenance management in initial stage, now, we need to step into the observation monitoring and maintenance phase, to create a favorable internal and external environment for accessories or equipment; put the part of the cement production equipment repair costs into the new equipment routine maintenance and oil monitoring equipment management to eliminate adverse information and extend the service life of the component or equipment, so that improve the operation rate and reduce maintenance costs.
 

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Sand production efficiency is improved by nearly 30%

Quartz sand refers to the quartz products whose general fineness is within 120Mesh after being proceeded.
The use of quartz sand: to manufacture glass, refractories, smelting ferrosilicon, metallurgical flux; it also used to make concrete acid and acid-resistant mortar by its strong acid medium erosion ability in building.
The selection of quartz sand production equipment will directly affect the product quality and investment on processing system. Selection is based on the characteristics of the raw materials. The main part of quartz sand crusher device is crushing equipment. 
  We can combine various types of equipment depending on the process requirements to meet customer's different process requirements.
Quartz is firstly crushed by coarse crusher, then the coarse materials are transported by belt conveyor to the fine crusher for further crushing; crushed quartz stones are divided into two kinds of stones through screening: the one meets the sand maker feed size stones are sent to sand washer and the other are sent to be re-crushed.
 Quartz sand production equipment should be given priority to ease of operation, reliable operation, energy consumption and low cost of operation and management.
Zhengzhou Hongxing quartz sand production line is of high automation degree, low operating costs, high crushing rate, energy saving, large output, less pollution, easy maintenance; its production is in line with national standards for building sand, size is uniform, grain shape is good, and gradation is reasonable; it is widely used in cement limestone, clinker, brick, shale, coal gangue, coke, metallurgical, glass, coal, mining ore crushing industry.
 

Importance of surface mining for coal production

Coal is a resource predominantly used in electricity generation and heating applications. Coal mines go under the name "colliery". The resource can be extracted either by surface or underground mining depending on its depth.
Coal mining is a dangerous and dirty process that has seen lives endangered and even erased, such as in the case of the Chilean miners a few years ago and West Virginia this year.There are two types of mining: surface and sub-surface, the former of which is much more common. This means obtaining minerals and ores from within layers of sand, gravel, rock or other materials. Sub-surface mining requires shafts to be built for access to the minerals.
Due to the somewhat temporary nature of mining projects, the industry relies largely on temporary structures and equipment rental contracts.
Environmental Impact
A thorough environmental assessment is a requirement. Potential impacts of mining on the local terrain and wildlife include erosion, soil, groundwater and surface water contamination, sinkholes, and loss of biodiversity, and these need to be avoided.
International standards exist to try to eradicate or at least control the damage done to the environment.
Surface mining is used for an estimated 40% of coal production. Used machinery equipment can be used to extract coal. Extracting coal is less expensive if it's found near the surface. Once coal is extracted, the topsoil is then replaced and native trees and vegetation is planted to restore the original condition. There are three different types of surface mining: contour, strip, and mountaintop removal mining.
1- Contour Mining: Contour Mining is most commonly used in areas that have steep or rolling terrain. It involves digging the earth above the coal line, or coal seam, along the contours of the hilly terrain. This method can be dangerous because it may cause landslides and erosion problems.
2- Strip Mining: Strip Mining usually occurs on flat terrain. The earth is dug up in long cuts or strips until the coal seam is exposed. After the strip has been drilled and blasted and all the coal has been removed, a new strip is created right next to it and the process continues.
3- Mountaintop Removal Mining: Mountaintop Removal Mining involves using a combination of Contour Mining and Strip Mining. The mountaintops are removed to expose the coal beneath and the coal is extracted.
Fortunately, technological advances in equipment such as mine ventilation and drilling systems mean accidents are now becoming rarer. However, not all countries and mining companies have access to the most modern and safest machinery.
 

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The role of roller conveyors play in production

There are some of you who have used conveyors. So, you have seen the conveyor roller in action. However, if you are going to work with them, there is a thing or two which you have to know about them as well. This all should be kept in mind and is why we are going about to write this for you.
The first thing you have to understand is which one you are working with. When you look at the types, you will find that there are two different ones. These are the load bearing as well as the return. The return is also known as the lower in some cases. There are many different materials that these can be made of. The first material would be stainless steel. Others might find that these can be made out of mild steel as well. Then, there are some which are made of aluminum while others are made of PVC.
When it comes to manufacturing it is the right machinery and equipment that helps make a job as easy as possible. If you try and do the job without the right machinery you can often still do it but it takes longer and is much harder work.
However it is also about getting the right equipment from the right supplier so you can be sure that you get a decent quality piece of equipment that is going to last you. If you are relying on machinery to do the work for you then the last thing you want is for it to be unreliable and breaking down all the time.
You should also make sure that the equipment you get is up to the job it is intended for. There are lots of different types of machinery available all of which are made for a different purpose and have different specifications.Roller conveyors are series of rollers supported in a frame over which objects are advanced manually, by gravity or by power. These roller conveyors are available in two versions i.e. powered and un-powered (idler). Idler roller conveyors can be straight or gravity type. Heavy and/or voluminous material can be conveyed very easily with these roller conveyors.
These roller conveyors are generally used in assembly lines. In few applications these conveyors can be converted in free flow versions and used in inspection lines in food industries. One more form of the roller conveyor is vegetable/fruit-grading conveyor required in food industries prior to the conversion process of the raw material.
Speed and efficiency are the goals of this sort of equipment in a warehouse or distribution center. These conveyors are quite simple and easy to maintain. There are three types of roller system to help with all of your needs. Gravity conveyors are very simple and use gravity as their main power source. With no need for electricity, this type of roller conveyor is the most economical especially for smaller scale companies on a budget.
These gravity conveyors can be configured in virtually any manner and segments can be added over time as your business expands. Roller conveyors also can be used in conjunction with other conveyor belts and systems that require an electric power source. When connected, they can fulfill all of your distribution needs and help get your products out and into the marketplace quicker.
 

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Main factors that affect sand washer production

Our sand washer industry has indeed made remarkable achievements. Especially in recent years, sand washer enterprises pay more attention to the new product research and development, the construction of sales channels and the application of e-commerce. Although the sand washer industry has gradually become mature after the financial crises in 2010, the market was not always smooth. Due to the continuous pressure of the raw materials and the human resources cost, as well as the influence of the real estate market, domestic sand washer industry is facing unprecedented sales crisis.
As the professional manufacture of sand washer, Henan Hongxing Mining Machinery will talk about the main factors affecting the production of sand washer based on our years of experience:
First, the content of sand soil
The original sand quality will be the decisive factors affecting the output of sand washing. The quantity of mud, stone, shell and other impurities, the size of particles will affect the output of sand washer.
Second, the proficiency of operation
The operators will also affect the production of sand washing. It is necessary to train the operators before using the sand washer. The operator must understand the working principle, performance characteristics and other precautions.
Third, the maintenance level of equipment
Sand washer should be regularly maintained so as to maintain a good working condition, which is the premise of guaranteeing production.
Fourth, the quality of sand washer
Any equipments' operation result is closely related to the quality of equipment itself. As is well known, the same product may bring us different experience and value for the different quality.
For the domestic sand washer which is always considered as no brand, this is a problem whether to actively attack or defend to meet this crisis. Whether has the brand became an unprecedented bottleneck? The whole brand of China sand washer need to promotion especially for the raw materials and the design. Why does the the development of brand improve slowly? I think the Chinese is still relatively conservative. To establish a famous brand not only needs the courage, but also the capital, of course, does not rule out other external factors.
The latest Mobile crushing station, and new type cone crusher of  Henan Hongxing Heavy Industry Machinery have reached the international advanced level in the technology. The crusher equipments has many customers in the world market. Henan Hongxing Heavy Industry Machinery continues to research and develop the types of crusher and tries to make all crushers to reach the international top level. This happens to coincide with the "12th five year plan".
 

Equipment used in sand and gravel production line

In the most recent period, the rate of crusher technology innovation has been slow down. Henan Hongxing heavy industry technical staffs have also met with a "bottleneck". In this situation, our chief engineer Xu required the technical staffs transform the research direction. We should suitably strength and improve the performance of crusher. We should research and development high performance and high-end crusher. The development trend of current crushing equipment is "high-end" "high integrated" "high performance" and "low-carbon".
First, the impact crusher has high crushing ratio which can reach over 50, but the crushing ratio of the jaw crusher and cone crusher may hardly reach to 20.
Second, the products particles are excellent. Under impacting action, the material to be crushed of breaks along the most vulnerable level. The probability of the drought cubic form is higher in this selective crushing way. Therefore, the flakiness percentage content of impact crusher can be less than 10%, while the flakiness percentage content of jaw and cone crusher will be more than 15%. These characteristics make impact crusher play an important role in large numbers of crushers.
The new sand maker developed a new wheel sand washing equipment which is especially suitable for smaller coarseness, washing of particles and so on. It is suitable for sand and gravel and can wash the powder and dirt. The innovative structural design and reliable gear can sand of excellent dewatering effect. The new sand maker also suitable for washing, grading, dewatering and cleaning of the metallurgy, building materials and utilities industry.
The hammer developed by Hongxing Mining Machinery is very durable, which eliminates the screening process and use the straight-through sand making sand producing and output stably. It is favored by the old and new customers. Hongxing's good services of exact model selection, installation and guide make you no longer worry about seeking for desirable sand maker.
Besides the products' excellent quality, Henan Hongxing Mining Machinery Co.,Ltd. has provided customs with the complete sets of service system of pre-sale, sale and after-sale and customs can get free site measurement, design and installation. Hongxing heavy industry configurates the process according to customers' production scene strives to provide customers with the most reasonable and economical production line make all customs rest assured.

The introduction of cement production

The cement process limestone with single-stage impact crusher’s kinetic energy to make the material level along the joints broken, discharging homogeneously in cube shape. After large materials into the crushing cavity between the Counterattack board and the rotor plate, they were impacted repeatedly between the Counterattack board and the rotor plate and gained the kinetic energy from the rotation of the rotor part, finally meet the required grain-size by the drops broken for the first level counter cavity, the second level counter cavity and the bottom of the grinding chamber respectively.For the preparation methods of raw material are different, cement production can be dry (include semi-dry) process and wet (include semi-wet) process. Portland cement ① dry process. Drying all materials at the same time then grinding the material or first drying the grinded raw material powder then feed to the dry kiln and calcine into clinker. However, there is another way, add some water into the raw material powder to make the raw material ball, and then feed to kiln to calcined to clinker, this is called semi-wet process, also belongs to the dry process.
② Wet process, which is generally conducted by filling water into the raw material, grinding the wet raw material into raw slurry, and then feeding it into kiln to burn into clinker. Or dehydrate the wet processed prepared raw slurry into raw lump and then feed it into kiln to burn into clinker, which is semi-wet process, still remaining kind methods of wet process.
The new type of raw material mill with production of 5000 tons per day used in dry method cement production line and the ground slag mill plant with annual output over 50,0000 tons, both of which adopt Hongxing heavy industry LM series vertical roll mill. It is suitable for grinding raw cement process and coal and cement clinker processing, especially for grinding cement, ground slag and steel slag that sort of materials. As the stoptime of material in the grinding is longer than traditional vertical mill, processed goods particle shape and size distribution by processing of Hongxing heavy industry roller mill is close to that level of the ball mill products. That is good for improving the cement (high fine slag powder, high fine steel slag powder) hydration performance and increasing strength. It shows that cement enterprise has good prospects for development in pulverized coal preparation, slag grinding, plaster powder calcined grinding and grinding nonmetalliferous ore.

Stone production line creates new situation

Stone production line promotes cement industry chain to create new situation.
The plight of the cement industry in the past two years is well known, overcapacity has become the most serious problem that China's cement industry is facing; while some cement companies begin to actively improve management and reduce production costs, some companies began to seek another way out—they increasingly focus on downstream industries - concrete.
According to the progress of China's infrastructure investment and urbanization rate, the aggregate production will still keep rapid growth, which leaves great room for the development of cement companies which has advantages in resources, equipment and strong market advantage. At present, requirements on high-quality concrete aggregate are more than high-performance and qualified chemical composition, there are higher demands on particle size distribution of sand and gravel material, shape, cleanliness which ask for a higher demand on the technical equipment for the production of sand and gravel material, the crusher production enterprises are also faced with new challenges and opportunities.
Hongxing machine Mine Equipment Co., Ltd. is a professional R & D manufacturer of mining machinery in the world, the production line composed of stone production line feeder, hammer crusher, vibrating screen has high degree of automation, high efficiency, low operating costs, production, good income, uniform particle size of the finished stone, grain shape is good, in line with the national high-speed materials; the entire production line in addition to the boot shutdown and routine maintenance of equipment, almost does not require manual operation.
Hongxing company is specialized to create the full set of stone production line equipment, it can be widely used for crushing operations in the limestone, ore and other materials, its efficient, low-energy, high processing capacity, economic and reasonability are welcome by customers, the process configuration play an important role in building materials, infrastructure and other projects.
 

The key to change production mode of crusher industry

Developing energy-saving crusher is the key to change the mode of production
China is with great resources, but with the population increasing and industrial development, the current shortage of China's resources become more and more serious, which is inseparable from the backward mining operations, especially the extensive mining production makes environment has suffered a serious threat, so developing energy-saving crusher and other equipment for the mining industry is the key to change the mode of production.
It is understood that the crusher industry in China developed very rapidly, especially after the founding of new China, the state advocates to speed up the construction of the industrial countries, which makes the crusher industry experience a development beauty, coupled with large-scale mining, cement and other industries launched, therefore, crusher manufacturers across the country over and over.
But with the growing number of the crusher, the quality was not perfect. According to the State Environmental Protection Administration inspection found that, due to backwardness of the crushers and other mining equipment and the old production methods, ecological destruction and environmental pollution cause by mining is very serious, large-scale mines ecological restoration is difficult, small-scale mines unauthorized mining damage the ecological widespread The ecological environment in mining local is out of control, this situation makes very worried.
To change the problem of mining pollution in waste, in the recently issued the "12th Five-Year" energy-saving environmental protection industry development plan, plan clearly defined that we should focus on the development of new energy efficient building materials equipment, so intelligent and green crusher production is imperative. In fact, the past two years in the crusher industry also appeared in a number of enterprises with environmentally conscious, such as Zhengzhou Hongxing, the company in advance step in the production of environmentally friendly large-scale crusher, and finally developed the largest limestone single-stage hammer crusher, domestic production, world production of large single-stage impact crusher and other equipment, energy saving equipment for green mining in Shanxi, Inner Mongolia and other provinces, provides technical support.
The Crusher industry is the support of the construction, especially the national infrastructure and mining industries, therefore, its scientific and technological content and environmental design directly determines the energy level of the national production, the production of green energy equipment will become a prime magic to occupy the future market for the new crusher enterprises.
 

Raymond mill works in iron ore production line

Raymond mill works in iron ore production line
Today we Hongxing Mining Machinery specially invited our professional experts who has many years experience in mining machinery industry to answer some hot questions on the core part of slime dryer impeller. First, what is impeller? The impeller can be said as the core parts of the dryer, which is equivalent to the human heart. Now let us discuss the impeller characteristics and its working principle in order to operate the machine correctly and avoid unnecessary risk operations for the masses of users.Only taking full advantage of iron ore can meet the requirements of the rapid development of iron ore, which can also make full use of other mineral resources with environmental conservation. It is necessary to constantly improve the technical level and performance advantages of crushers, which not only realizes the reasonable and perfect use of iron ore, and also plays an important role in promoting the utilization of other mineral resources. The new cone crusher introduced by Henan Hongxing Mining Machinery is dedicated for iron ore crushing, which is the combination of the technique advantages of the spring cone crusher and hydraulic cone crusher. This new cone crusher highlights the advantages in iron ore crushing. Henan Hongxing Mining Machinery has dedicated the production, research and development of all kinds of ore crushing equipment for many years, which introduce various forms of crushing equipment according to different processing ways of various ores. In the continuous development of mining machinery, Henan Hongxing Mining Machinery seize the important opportunity to develop new markets, improve develop standards and achieve new breakthrough.
The raymond mill produced by Henan Hongxing Mining Machinery promotes the full use of the sandstone, which uses the advanced structure among the similar products at home and abroad. The raymond mill is updated and improved on the base of raymond mill in the same industry. This kind of raymond mill with high efficiency, low power consumption, small footprint and small investment is superior to the ball mill. The winnowing air circulation flow of the equipment is operated during the process of the fan, grinding shell and cyclone. Therefore, the dust produced by raymond mill is less than the high-speed centrifugal mill. In addition, the operating workshop is clean without environmental pollution. The product is full-featured, which can crush the needle-like material. The crushing process without temperature rise is suitable for crushing heat-sensitive material.