At present, more than 90% of China's energy, more than 80% of industrial raw materials and more than 70% of agricultural production materials come from mineral resources. In the process of processing and utilizing mineral raw materials, crushing and grinding account for more than 60% of the power consumption of the entire concentrator. Because the efficiency of the mill is only 1%, the efficiency of the crusher reaches 10%. Therefore, moving the power consumption of the grinding mill to achieve the technical goal of “multiple crushing and less grinding†in the grinding process is the key to increasing the production and income of the ore dressing plant and saving energy and reducing consumption. By optimizing the crushing process and adopting advanced crushing and screening equipment to improve the crushing efficiency and reduce the particle size and crushing power consumption of the crushed product, it is essential for the ore dressing plant to reduce power consumption and increase economic benefits. In recent years, new grinding equipment has been continuously introduced, with the aim of obtaining a larger crushing ratio and obtaining more fine-grained crushing products to reduce the particle size of the grinding material, save energy and reduce consumption, and at the same time carry out structural innovation, adopting new technologies and new materials. Improve traditional equipment to improve reliability, durability, performance and efficiency. 1 jaw crusher The senior engineer of Dolly Watson Machinery Equipment Co., Ltd. has years of practical experience and designed the largest 1200mm x 1500mm compound pendulum jaw crusher in China. Shenyang Gold Institute and Liaoning Hongtoushan machinery factory jointly developed by SAEP-25-type double-action jaw crusher, crushed 12, with the same specifications of the old type jaw crusher contrast ratio up, production capacity increased by 60% to 100% , electricity is reduced by 30% to 50%. In the past, the optimal design of the jaw crusher was based on the moving motion feature as the objective function to obtain the optimal 颚 motion trajectory. In recent years, it has been proposed to optimize the speed of the jaw crusher to obtain maximum productivity. Through the optimization of mechanism, speed optimization and optimization of crushing chamber, Zhejiang Shuangjin Machinery Group Co., Ltd. designed a new 750mm × 1060mm jaw crusher, which greatly improved production efficiency. The other double-cavity jaw crusher has two crushing chambers, which can be operated under double working strokes, and there is no energy consumption of the idle stroke, thereby greatly improving the processing of the ore, and the unit power consumption is greatly reduced. The vibratory jaw crusher was developed by the Russian Mexano6p, which uses the centrifugal inertial force generated by the unbalanced vibrator and high-frequency vibration to achieve crushing. In theory, vibration crushing is also an efficient crushing method. This crushing method can achieve the purpose of multiple crushing, less grinding, high efficiency and energy saving. It has many advantages, the crushing ratio can be increased by 2 to 3 times, and it can be started in the case of full mine. And parking, by adjusting the working parameters of the equipment, you can get different sizes of products, especially for hard and difficult to break brittle materials, with a good development prospects. Jaw crushers are equipped with targeted overload protection measures. Up to now, there are several methods such as toggle fracture method, flywheel limit protection and hydraulic protection. The wear of the moving jaw is mainly due to the extrusion of the material and the jaw, and the economic loss caused by the wear is also great. Therefore, the development of the anti-wear material is strengthened, and at the same time, the correct use and maintenance of the equipment is reduced. Effective measures for mining machinery to wear and prolong its service life. When high-manganese steel by adjusting the composition, after conventional water treatment and tough, high manganese steel alloy and then ZGMnLOGr2 ZGMn13 higher than about 50%, after then, if ZGMn 1oGr2 precipitation hardening, which wear resistance than conventional water treatment and tough Can be increased by about 50%. 2 rotary crusher The gyratory crusher is also called the crushing cone crusher. The depth of the crushing chamber is large and the work is continuous, so the production capacity is large and the unit power consumption is low. In recent years, with the continuous expansion of mine scale, large-scale equipment has become the future development trend of mining equipment, and the gyratory crusher has also developed in this direction with the change of demand. In the internationally advanced renting and crushing gyratory crusher, Metso Minerals of Finland developed the new Superi-or 60-110E coarse crushing gyratory crusher, which redesigned the star frame with the overall lower body and new material station. The edge lining increases the swing frequency from 514r/min to 600r/min, reducing the quality by 20% while maintaining the same production capacity, and reducing installation and transportation costs. Sandvikt has introduced the world's largest installed power. The hydraulic gyratory crusher has a power of 1100kw, a processing capacity of 6160~10940t/h, a feed port size of 1650mm × 4410m, a discharge port size of 200-305mm, and a total machine weight of 748t. China CITIC Heavy Industry is developing PXZ1500 PXZ1700 large-scale gyratory crusher; 1600mm heavy-duty hydraulic gyratory crusher manufactured by Hangzhou Shanhu Machinery Co., Ltd. is the largest rotary gyratory crusher in China. The remarkable feature of this machine is double motor drive. 3 high pressure roller mill In the 1980s, Professor Schöenen developed a high-pressure roller mill based on the theory of lamination pulverization. As a kind of ultra-fine crushing equipment, the high-pressure roller mill has the characteristics of low energy consumption per unit energy consumption, uniform distribution of product size, and high equipment operation rate. When the hardness of the ore is large, the crushing and grinding performance are not good, it is more suitable to adopt the high-pressure roller grinding process, and the energy-saving advantage of the high-pressure roller mill is very obvious. The maximum crushing ratio of the high-pressure roller machine can reach 10 or more, which is 2.0 to 2.5 times that of the conventional crusher, and the processing capacity is 1.5 to 2.3 times that of the conventional crusher. Up to now, more than 3,000 high-pressure roller mills have been successfully used in building materials, mining, metallurgy and other industries. The 2PGCL-1500 × 3000 large double-toothed roller crusher developed by Shandong Energy Linyi Mining Group Laiwu Coal Mining Co., Ltd. was successfully loaded and tested on April 26, 2012. The particle size of the material is 1500mm and the maximum processing capacity is 6000t/h. The second phase of the Hebei Iron and Steel Group Sijiaying project adopts the RP170-180 of the German KHD Company. The Shandong Gold Group Shandao Gold Mine adopts the RP140-110 of the German KHD Company, and the Jinduicheng Molybdenum Company adopts the 150-100 of the German Koppern Company. High pressure roller mill. Domestic large and medium-sized mines have designed high-pressure roller mills, and domestic related equipment manufacturing companies have also increased the R&D and productivity of high-pressure roller mills. 4 cone crusher The cone crusher is still the main equipment for fine crushing operations in metal mines. In order to reduce the particle size of the final crushed product, improve the crushing efficiency and reduce the energy consumption, the large bottom cone angle, the large swing range, the high swing frequency, the optimized crushing cavity type and the internal structure are the development directions of the medium-fine crushing cone crusher. At present, the world's largest cone crusher is the MP1250 cone crusher manufactured by Metso Minerals of Finland, with an installation power of 932.5kw. Followed by the Raptor XL1100 cone crusher from FL SmidthExcell, Denmark, with a maximum installation power of 895kw, a maximum feed size of 620mm, and a production capacity of 2000t/h with a closed side discharge opening of 35mm [19] . The Sandvik cone crushing maneuver has a steep slope and a short parallel belt. It uses a small biasing operation and has a large processing capacity, but the powder yield is low. The Nordberg cone crushing maneuver has a gentle slope and a parallel belt length. It uses a large deflection and high frequency operation, and has a small processing capacity and a high powder yield. Inertial cone crusher is a new type of energy-saving ultra-fine crushing equipment with unique principle and structure. It can realize the selective crushing of materials and meet the requirements of “multi-break and less grinding†process. The machine not only has a large crushing ratio, but also has a fine and uniform particle size, and has low unit power consumption and can crush brittle materials of any hardness. The inertial cone crusher produced by Beijing Kate Crusher Co., Ltd. represents the highest level of the current world cone crusher with its advanced crushing theory, unique design ideas, reasonable mechanical structure and excellent performance.
Material Selection:
1. Frame: 2MM thicknesses cold-roll Stainless steel.
2. Motor: Germany SEW brake motor (outer), power 0.75KW, power supply 220V.
3. Control system: Imported Japan Mitsubishi converter and PLC to control of electric box (150%1HZ)
4. Opening & closing speed: 0.6-1.5m/s (adjustable).
5. Safety Device: Korea Photocell Sensor, emergency stopping reaction when sensing obstacles.
6. Curtain: France high-density polyester fiber and the surface coating processing, thickness 0.8MM, variety colors can be chose: Red, yellow, blue, green, orange, gray, white, transparent, etc. Tensile strength: 4000/3500N/5cm, tear strength 600/600N. Fire-proofing level: German standard DIN75200 Usage temperature: -30 ° C +70 ° C.
7. Wind resistant: The Aluminium alloy Reinforce Girder to increase wind resistant effect.
8. Curtain replacement function: Aluminium alloy Reinforce Girder is loaded between 2 pieces Curtain, can be replaced easily if any curtain broken, save your cost.
9. Transparent window: 1.2MM thickness transparent PVC window, size and location is up to your request, more safer.
10. Seal: Seal brush are Installed inside the guides, and the special bottom design, to fit any uneven ground.
11. Cotrolling way: Push button + radar sensor, very convenient.
12. Limiting Switch: Mechanical limiting switch, easily and exactly.
13. Emergency STOP: With emergency stop button on control panel, can stop easily by
Hand once disconnect or accident
14 Fault recovery function: All Hongfa's production is with fault recovery function, system will self-recovery after power cut off.
15. Delivery time: About 7 business days with contract and deposit confirmed.
16. Pyament item: 50% before production, and the other 50% before shipment.
17. Warranty Details: We provide 12 months warranty for all doors and accessories (except man-made disasters, Irresistible natural disasters, ect^).
We have many professional engineers with rich experience, qualified products, perfect service system, and good cooperation relationship with many famous companies.
PVC high speed door,plastic roll up doors,high speed fabric roll up doors,high speed rolling doors, pvc roll up doors SHENZHEN HONGFA AUTOMATIC DOOR CO., LTD , http://www.hongfahss.com
Development crushing process and beneficiation plant and equipment to reduce power consumption, increase productivity and production targets is essential. 
In 1858, El. Blake patented the manufacture of double-knuckle jaw crushers. The crusher has been widely used because of its simple structure, reliable operation, easy manufacture, and convenient maintenance.
Japan Kobe Steel Co., Ltd. based on the principle of laminating and crushing, developed a laminated cavity shape of the crusher, which greatly improved the productivity of the crusher and improved the quality of the crushed product.
Metso Group C series jaw crusher's split-assembled frame design and material selection according to different parts of the force, creating conditions for the C series jaw crusher power input or crushing force to become larger; The design of the double- iron module discharge port adjustment mechanism and the integrated installation of the motor and the crusher provide operation guarantee for the power input or crushing force input of the C series jaw crusher becomes larger. This makes the C-Series jaw crusher characterized by light weight, high handling capacity, durability and simple operation and maintenance.
Lin Yunliang and others of Beijing Mining and Metallurgical Research Institute cooperated with Shanghai Doring Watson Machinery Equipment Co., Ltd. to develop the PED low-profile detachable jaw crusher, which is a new type of raft suitable for underground special operations. Crusher.
5 grade crusher
During the working process of the classifier, the material (usually raw coal) is uniformly transported by the belt conveyor and slipped over the crusher's tooth roll. The material conforming to the specified particle size falls directly between the toothed rolls and between the comb plates, and then It is transferred away by the belt conveyor below, and the material exceeding the specified particle size is broken by the two-tooth roller. The graded crushing equipment has the technical advantage of large processing capacity in the working principle, and can reduce the energy consumption of the crushing process. In view of the energy-saving advantages of the graded crushing technology, many domestic units have carried out research on the classification and crushing technology, and designed a number of graded crushing equipment. However, due to the lack of theoretical support of the graded crushing technology in China, the processing capacity of the graded crushing equipment cannot be well satisfied. The technical requirements for improving and reducing energy consumption have constrained the serialization and large-scale development of graded crushing equipment.