23.02.2012
Roll crushers will go through the whole world
The roll crusher equipment is a very potential force in market development of the crushing plant, roll crusher plays an important role in the process of crushing materials, the material is repeatedly crushed by the broken parts. Compared with hammer crusher and impact crusher, in the crushing of materials, the roll crusher equipment is more suitable for crushing brittle materials.
Roll crushers have a theoretical maximum reduction ratio of 4:1. If a 2 inch particle is fed to the roll crusher the absolute smallest size one could expect from the crusher is 1/2 inch. Roll crushers will only crush material down to a minimum particle size of about 10 Mesh (2 mm). A roll crusher crushes using compression, with two rolls rotating about a shaft, towards the gap between the rolls. The gap between the rolls is set to the size of product desired, with the realization that the largest feed particle can only be 4 times the gap dimension.
Roll crusher equipment has large crushing ratio and can up to 50. This roll crusher can be used to crushing limestone in cement industry. Any company and business that use of the roll crusher equipment or are using the production of roll crusher has a deeper understanding of the improvement the utilization of crushing materials. Spare parts of roll crusher equipment is easy to replace, and has a corresponding reduction in maintenance expense. This machine is suitable for a very large hardness of materials or used for soft materials.
Some major advantages of roll crushers are they give a very fine product size distribution and they produce very little dust or fines. Rolls crushers are effectively used in minerals crushing where the ores are not too abrasive and they are also used in smaller scale production mining of more abrasive metal ores, such as gold. Coal is probably the largest user of roll crushers, currently, though. Coal plants will use roll crushers, either single roll or double roll, as primary crushers, reducing the ROM coal. Usually, these crushers will have teeth or raised forms on the face of the roll. (Roll crushers used for minerals and metal ores have smooth faced rolls.)
Roll crusher equipment in daily use, the maintenance of the machine must be aware of. In particular, the operators need to pay attention to maintenance of the roller of roll crusher equipment, because the most easy to wear and consumption is the roller.
As the professional manufacturer of complete sets of mining machinery, such as Rock crusher,sand washer,Mobile crushing station,Cone crushers, Henan Hongxing is always doing the best in products and service.04:20 Publié dans mining machinery | Lien permanent | Commentaires (0) | Trackbacks (0) | Envoyer cette note
Hammer crusher is also the contributor to Building Industry
Building materials is the basis of the buildings and structures, road building materials for all parts of the road bed, pavement, bridges, tunnels and other various components and structures.
This series of crusher are widely used in metallurgy, mining, chemical, cement, coal gangue, construction, sand, refractory material, ceramic and other industrial and mining enterprises, engaged in breaking and crushing the material in the operation. Used for tertiary or quaternary crushing, it is mainly suitable for crushing various ores the compressive strength of which is no more than 320MPa.
Industries as hydropower, roads, railways, construction (urban central supply concrete) and other sectors in China are the national infrastructure industriy, and also are the state mainly invested industry, which have a very prosperous prospect. Those industries above require the sand and gravel system to produce aggregate, so as to meet the quality requirements of concrete. Hammer crusher has been widely used in the system.
The hammer crusher application is wide in processing building materials for construction like above. With the large-scale expansion of China's highway construction, road building materials use and development of speed is also faster and faster, traditional building materials widely used in foundation engineering, but has been increasingly unable to meet the rapid development of highway construction on standard engineering requirements. So the demand for hammer crusher application has been increased greatly. High quality building material need good performance hammer crusher. Hongxing hammer crusher has been applied to construction, chemical industry, light industry and so on.
After building materials and solid materials are crushed, the internal crystal structure changes, the surface and the unit mass can increase, can improve the speed of physical and chemical reaction, easy mixing and improve homogenization, and create favorable conditions for drying, storage and delivery. This is the reason why hammer crusher application is popular in construction industry. Hongxing hammer crusher application is wide also because of high quality crusher hammer and rotor. The hammer crusher application can meet different crushing request of construction material.
The structure features of the hammer crusher in the aggregate system:
1) Large feeding mouth, high crushing chamber, suitable for the materials with high hardness and block degree, low dust pollution;
2) Convenient to adjust the gap between hammer board and board hammer, effective to control particle size;
3) Compact structure, high rigidity, the rotor with great inertia;
4) High chromium plate hammer with large hammer resistance, abrasion resistance and hammer force;
5) Non-key connection, easy maintenance, economical and reliable;
6) Perfect crushing-function, high productivity, high overall efficiency.
As the professional manufacturer of complete sets of mining machinery, such as impact crusher,Cement plant,Jaw breakers,VSI sand maker, Henan Hongxing is always doing the best in products and service.
04:19 Publié dans mining machinery | Lien permanent | Commentaires (0) | Trackbacks (0) | Envoyer cette note
Operating hints for Limestone Roll Crusher
The limestone roll crusher is suitable for crushing sulphur iron ore, phosphate ore, barite, celestite, coke, limestone and so on. The limestone crusher can be divided into roller crusher and four roller type crusher according to the number of roller. The operators should to do maintenance work when roll crusher at work, so as to extend the using life of the crusher. In this regard, look what should pay attention when the limestone roll crusher in the work!
The most important issue of limestone crusher equipment selection is to know what this device will have to bear the task. In other words, the limestone crusher equipment selection is the core issue of what it is to process the material? What the material particle size is? How much the capacity and what kind of product will be produced? The material need to be processed is varied. Each material has different characteristics. Some materials are crushed more easily, while others require more crushing energy; some of the materials will be broken into blocks, and some materials will be broken into powder; wear and tear of some limestone crusher machine is strong, while others are caused by the wear rate of limestone crusher equipment is very small.
Pay attention to the bolt-on condition and immediately tighten up if any bolt loosen. Starting the limestone roll crushe first, feed material after the machine operating normally. Regularly check the wearing parts of limestone roll crusher, pay attention to replace wearing part at any time. Check the discharge condition of roll crusher, eliminate material if any blocking happened.
Additionally, the machine should not be overload, pay attention to the electric instrument at any time. The bearing of roll crusher should be refueled timely and avoid oil leaking in the bearing. Control the bearing temperature and not higher than the surrounding air 25 to 30 ℃. The limestone roll crusher is widely used in cement, metallurgy, chemicals, electricity,coal and other industries for processing the brittle and ductile materials.
In order to select limestone crusher equipment for a particular purpose, people should know what kind of material that being crushed. For example, if the material is limestone, you can choose the limestone crushers such as, jaw crusher, impact crusher. But the differences between these materials is significant. Tests of materials in laboratorycan be able to avoid some unnecessary spending a lot of information. For example, as high wear resistance index of the quartzite-like materials should not be fed into the impact crusher, because this equipment not only with high maintenance costs, but also to spend a lot of time. The kind of dolomite materials do not need to use large scale limestone crusher equipments.
As the professional manufacturer of complete sets of mining machinery, such as ball mill,Rotary dryer,Belt conveyor,VSI sand maker, Henan Hongxing is always doing the best in products and service.04:18 Publié dans mining machinery | Lien permanent | Commentaires (0) | Trackbacks (0) | Envoyer cette note

