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With the tendency of foreign high-grade calcium carbonate materials entering into Chinese market, domestic technologies make great progress which speeds up the growth of processing kinds of calcium carbonate, and also make them develop towards the directions of diversification, specialization and elaboration to expand wider application fields. Next, let’s introduce the applications of limestone. 1. To produce Portland cement is the common use. Limestone can meet the requirements of cement raw materials through the stone crusher and grinding machine. 2. To be used as packing of plastics, paint, rubber, paper, ink and others in various production lines.

Impact crusher (also called sand making machine) and counterattack crusher are usually used in bad conditions for long term which can intensify the abrasion of rotor bearings. Crusher can’t run normally without rotors that play an irreplaceable role. As we know that rotors are wear parts with their dear bearings and difficult repairmen which often cause loss of production. It’s noticeable problem for customers that how to take efficient measures to improve the life of rotor bearings of impact crusher. Next, we will list some attentions on its normal status. 1.

Building sand belongs to local material, and according to different requirements, some important projects such as Three Gorges Project bring proper equipment to produce sand. Apparently, sand making equipment is very significant. Sand making machinery industry in China upgrades the products depending on technical import, but with the decreasing gap and technical control, it"s more difficult to bring foreign advanced technologies. So we must keep self-innovation to meet demands of upgrading structure.

Since the requirements for crushing equipment grow much more quickly than the crusher launching speed itself. Therefore, we should ring the alarm bell always and urgently improve the overall performance of the tertiary crushing equipment to satisfy the customer demands. The tertiary crusher produced by our company is low in energy consumption, steady in performance and good in sealing. The cylinder can be opened, which makes for easy check. The other features are high crushing ratio, high crushing efficiency, fine granularity, simplified process and simple structure. Environment protection cannot be ignored in every sector. More emphasis should be laid on it in crushing industry. The environment friendly tertiary crusher precisely meets the standard.

Clean hydraulic oil is the life of hydraulic system, which is as important as the heart to a person. When filling oil, operators should filter it in advance. The instrument must be reliable and clean. The filter cannot be eliminated for improving the filling speed. Oerators should use clean gloves and labor suit in case solid impurities or fibre impurities fall to the oil.

With the arrival of the blossom flower and warmly spring, Chinese infrastructure construction is in full swing. An increasing demand for all kinds of building materials, the processing equipment crusher will occupy a very important position and become the backbone industry. This series of roll crusher (double roll crusher) composed by the roller, the roller support bearings, pressed and regulation devices and drive components.

With the continuous shortage of the river sand resources in our country, the weathering placer is becoming more and more important. At present, Hongxing Machinery researched and developed a type of sand maker which is able to process the weathering placer into artificial sand that conforms to the requirement of construction project. This type of sand maker is widely used for medium and fine crushing various hard and crisp materials such as rocks, abrasive materials, refractory materials, cement clinker, iron ore and concrete aggregate and it is ideal sand making device for building and road-paving.

There are three different sand making ways of the sand maker:

Recently, according to some characteristics of the fly-ash relatively to the classification, the domestic experts make some researches on the classifying theory of the particles and put forward the SLK Class Theory based on the gas-solid flow theory. Furthermore, the experts combining the practices make some designs on the SLK classifier structures and some experiments on the model machines, as well as some reaches and analysis on the industrial application examples, through the numerical stimulation analysis of the gas-solid flow.

Hongxing Machinery has successfully designed and manufactured DPX series single stage fine crusher on the basis of the single stage hammer crusher. This type of crusher features high feeding granularity, low discharging granularity, hammerhead long service life, great production capacity, low electricity consumption, convenient maintenance, low operating costs, etc. Compared with the single stage hammer crusher, the single stage fine crusher has lower product granularity (80% 5mm). Compared with traditional equipment of the same scale, the single stage fine crusher for coal requires 35~50% less equipment investment and about 30% less long-term operating and management cost.

Coal has played an important role in modern industry. The coal resource plays a pivotal role for national economy. In Poland, the coal resource does not lack. The coal reserves in Poland stand the third place in Europe with more than forty coalfields mainly locating in the border zone in south areas connecting with Czech Republic and Slovakia. The coal is of high quality and industrial value. Usually in power plant, coal is often crushed in order to be utilized completely, and coal hammer mill is used to grind and pulverize coal before it is transmitted the boiler. Than the hot air in coal mill will lift into the boiler, but if the coal particles are too heavy they will fall down into the coal mill to be grind.