Development Status and Innovation of Domestic Cone Crusher

1 Development status of cone crusher
The domestic cone crusher is a φ1200 spring cone crusher designed and manufactured on the basis of the φ2100 and φ1650 spring cone crusher of the former Soviet Union in 1954. In 1958, the large φ2200 spring cone crusher was designed and manufactured; In the 1970s, the bottom single-cylinder and multi-cylinder hydraulic cone crushers were developed. The central hydraulic cylinder cone crusher was also developed. After years of repeated research and practice, it has overcome the shortage of spring pressure, low strength of parts and structural defects of the old series of spring cone crushers. The new series of spring cone crushers that have been mass-produced have diameters of 600, 900 and 1200. , 1750, 2200 mm five specifications, 14 cavity types; bottom single cylinder hydraulic cone crusher has four sizes of 900, 1200, 1650, 2200 mm, 12 cavity types; multi-cylinder hydraulic cone crusher has a diameter of 1200, 2200mm Two sizes, 4 cavity types. At that time, the domestic cone crusher had reached the level of serialization, standardization and standardization. It can be said that the products are complete and reliable, and they are recognized by domestic and foreign countries (Southeast Asian countries).
Despite this, there is still a certain gap between the domestic cone crusher and the foreign advanced cone crusher. In order to catch up with the world's advanced level, Shenyang Heavy Machinery Factory has introduced the US-based Nordberg's Symons and Gyradisccrushers technology.
Anshan Iron Steel Group Diaojuntai Concentrator introduction of the United States Connaught Berg produced in 1997 HP700 multi-cylinder hydraulic cone crusher, two broken Taichung, Taiwan 4 crushing; Wuhan Iron and Steel Chengchao iron ore in early 2002 with three multi-cylinder hydraulic HP500 The cone crusher replaces three φ2100 spring cone crushers; the Baotou Steel Company also uses the HP800 multi-cylinder hydraulic cone crusher. Others such as Maanshan Iron & Steel processing plant, Wuhan Iron and Steel Daye iron ore processing plant, as well as numerous local small and medium sized processing plant, non-ferrous metal ore dressing plant, such as lead-zinc mine in Shaoguan Fankou processing plant, Yunnan Copper Copper processing plant Dahongshan The HP series crusher is used instead of the original spring cone crusher, and the effect is satisfactory. It can basically meet the process requirements of “multiple crushing and less grinding”.
HP series cone crushers have also been introduced in the sand and gravel industry. For example, the Gushuling Stone Yard in the Three Gorges Project uses 2 HP300 and 2 Omnicone 1560 cone crushers; the Three Gorges Downstream Stream Material Yard uses 4 HP500 cone crushers; Hong Kong Ordovician The mine uses one HP700 and two HP500 cone crushers; Hong Kong's new airport project uses six HP series and two Omnicone cone crushers; Guangzhou Huangpi Stone Mine uses three Omnicone cone crushers. In addition, Magang Lianshan Iron Mine, Beijing Sanlian Sandstone Field and Zhangjiakou Quarry Plant also adopted the G-type single-cylinder hydraulic cone crusher produced by Norberg.
Around 2000, the Swedish Svedala Group first introduced the H1000 series single-cylinder hydraulic cone crusher to the market, and then invested Sandvik's H1800 series (now renamed CH series) single-cylinder hydraulic cone crusher into the Chinese market. It also set off a boom in the single-cylinder hydraulic cone crusher. Angang Group's Gongchangling, Dagushan, Hujiamiao, Qidashan and other iron ore mines, as well as Taigang Jianshan Iron Ore Dressing Plant, have introduced dozens of H6800 and H8800 single-cylinder hydraulic cone crushers; Jiangxi Copper Dexing Copper mines have also introduced several H8000 and H8800.
H7800 latest single-cylinder hydraulic cone crusher in 2006 for the first time in Luoyang Molybdenum Group processing plant after use, there are dozens have in a number of large mining companies, such as heavy steel iron ore Taihe, Anhui mining development, Tangshan Iron and Steel Sijiaying iron ore and silver aluminum industry, Guangxi, China and other application be successful. Bengang Nanfen Plant also used H6800 and H7800 single-cylinder hydraulic cone crusher instead of the original domestic spring cone crusher.
The inertia cone crusher is a product of the former Soviet Union, and its patent has been transferred to the United States, Japan and Western Europe. The Beijing Mining and Metallurgical Research Institute and the St. Petersburg Academy of Engineering Sciences have established a Sino-foreign joint venture, Beijing Kate Crusher Co., Ltd. to produce a world-class inertial cone crusher. The principle of inertial cone crusher is unique and still in application, improvement and development.
The MVP hydraulic cone crusher introduced by Cedarapids Company of the United States adopts the full rolling bearing structure; the Huzhou Xinkaiyuan Crushed Stone Co., Ltd. in Huzhou, Zhejiang Province and a gold mine in Harbin have introduced the full rolling bearing cone crusher.
In summary, all foreign advanced cone crushers have been introduced in China, but for the middle and low end users, the spring cone crusher is still the main force of production and sales. Such as Zhejiang Shuangjin's SJ series, Guangzhou Huayang's S series, Shanghai Shanbao's domestic old spring machine, its production and sales are far greater than the hydraulic cone crusher. For example, the SJ series of improved Simmons cone crushers developed by Zhejiang Shuangjin Machinery Group Co., Ltd., nearly 2010 production and sales in 2010 alone.
The Bauma China 2010 held in Shanghai in November 2010 was also a major gathering of major crusher manufacturers in China. There were nearly 100 crusher manufacturers exhibiting products ranging from single-cylinder hydraulics to multi-cylinder hydraulics. From the H1800 series to the HP range, everything from the old-fashioned spring cone crusher to the improved Simmons cone crusher. According to statistics, there are hundreds of manufacturers of crushers in China, and there are dozens of them in Shanghai alone. This shows the prosperity of the domestic crusher manufacturing industry and the fierce competition in the cone crusher market.
According to the author's observation, most of the domestic crusher manufacturers have not been able to increase their efforts to independently research and develop new products. In the fierce market competition, the manufacturers have copied each other, making the domestic cone crusher generally unable to catch up with foreign advanced. Cone crusher. Under this circumstance, some crusher manufacturers in China, especially the strong private enterprises, have increased their R&D investment and adopted independent research and development, factory-school cooperation and other methods to digest foreign advanced products such as H1800 series and HP series. On the basis of absorption, we will strive to create a domestically produced advanced hydraulic cone crusher.
Professor Lang Baoxian of Wuhan University of Science and Technology cooperated with a factory to develop a single-cylinder hydraulic cone crusher with 800, 1000 and 1 400 mm cone diameters. Its main technical performance is comparable to that of foreign advanced cone crushers, and some areas have been improved, such as When the 800 single-cylinder hydraulic cone crusher is started and stopped, the machine vibration is significantly better than the GP100 single-cylinder hydraulic cone crusher. Many domestic manufacturers have successively produced HP300 and HP500 multi-cylinder hydraulic cone crushers, and many manufacturers have produced small-size H1800 series single-cylinder hydraulic cone crushers.
2 Comparison of existing cone crusher models and performance
There are many types of cone crushers at home and abroad, and the performance of each type of crusher is different. The performance of the same type of machine and different manufacturers will be different. Now we compare the various models and performances of the existing cone crushers in China, and we can see which crusher has better performance and find out the development direction of the cone crusher. Since the performance of Simmons crusher is far superior to the traditional spring-type cone crusher, in recent years, various crusher manufacturers in China have developed such crushers, and domestically produced traditional spring cone crushers are becoming less and less. In recent years, the newly developed national standard for spring cone crushers (reported draft) is basically similar to the parameters of Simmons cone crusher, so the traditional spring cone crusher will be eliminated sooner or later. Table 1 shows the main performance specifications of Nordberg's Simmons, rotary disc type, G-type single-cylinder hydraulic cone crusher and HP series multi-cylinder hydraulic cone crusher.

According to the data in Table 1, the HP series crusher is the highest productivity and lowest energy consumption, and the product size is also the best for the HP series crusher. The rotary disc crusher has high energy consumption, and its output is slightly lower than that of the Simmons crusher. However, the output of less than 5 mm is higher than that of the Simmons crusher. Therefore, although the machine has high energy consumption, it can give the lower mill. Provide more fine-grained raw materials, so that the mill can achieve the energy saving effect of “multiple crushing and less grinding”.
From this point of view, the rotary disc crusher is superior to the Simmons crusher, but not as good as the HP series crusher. Therefore, Nordberg Company claims to be the new third generation of HP series crushers. The G-crusher is superior to the spring crusher in comparison to the Simmons crusher. From the comparison results of the above four types of crushers, it can be seen that the rotary disc type and the HP series crusher adopt the principle of laminating crushing, which can achieve selective crushing, so the performance of these two models is superior; and the HP series crusher not only adopts laminating crushing. It is also a high-energy cone crusher, so its performance is superior.
The H1000 series produced by the Svedala Group and the H1800 series single-cylinder hydraulic cone crushers produced by Sandvik are H series high energy cone crushers from Allis-Chalmars (AC). . Sandvik says the H1800 series is the third generation and a high-energy cone crusher. The inertia cone crusher is also a high energy cone crusher. The main performances of the above three high energy cone crushers are listed in Table 2.

It can be seen from the data in Table 2 that the H-8000 ultra-fine type is thinner than the HP700 fine type, and the latter has a fine grain size, high yield, and low energy consumption, but the former is slightly larger than the crushing ratio. Compared with the HP700 medium, the H-8000 is much more productive and consumes less energy, but the HP700 is not as lightweight as the quality in Table 2 does not include the hydraulic system of the crusher. Compared with the KИД-2200 inertia crusher, the H-8000 is better than the former, but its quality is 2.1 times that of the former. The inertia crusher has a large crushing ratio and can simplify the crushing process. This is another Great advantage.
KИД-2200 Compared with HP700 medium crusher, the latter has a particle size of 290 t/h with a particle size of 10 mm or less, which is 10 t/h less than the previous output of 12 mm below 300 mm/h, but the particle size is 2 mm smaller; It is 1.724 kW·h/t, the former is 2.00 kW·h/t; from the quality of the crusher, the former is 140 t, but its crushing is relatively large, and the performance of these two crushers is superior to that of the H1000 series crusher. The reason is that although the crushers listed in Table 2 are all high-energy crushers, the H1000 series crushers do not use the laminating crushing principle and cannot achieve selective crushing. In addition, the H1000 series and G-type crushers also have the advantages of the aforementioned single-cylinder hydraulic cone crusher, and with the most advanced computer automatic control system.
The Sandvik H1800 series is superior to the H1000 series crusher and can be considered a high-energy laminated cone crusher. Through the above comparison, it can be considered that the HP series and H1800 series crushers are the most advanced two types of crushers in the world, and have been well received by users at home and abroad.
3 Development and innovation of cone crusher
3.1 Increase investment in the introduction of digestion and absorption
From the above analysis of the crusher, the performance of the HP series multi-cylinder hydraulic cone crusher is better than that of the H1800 series single-cylinder hydraulic cone crusher. However, from the perspective of the structure of the crusher, the cone crusher is more complicated than other crusher structures. The HP series multi-cylinder machine is the most complicated in the cone crusher; the H1800 series single-cylinder machine is the simplest structure in the cone crusher, so from the complexity of the crusher structure, the H1800 series single-cylinder machine It is also superior to the HP series multi-cylinder machine. Both crushers are hydraulic cone crushers with superior performance in the world today.
Before 2000, some manufacturers developed HP300 and HP500 multi-cylinder machines through digestion and absorption based on the introduction of HP series multi-cylinder machines. Their performance is basically similar to that of the original machine. The operation of the introduced HP series multi-cylinder machine proved its superiority and found its defects.
After 2000, the introduction of the H1800 series single-cylinder machine is very strong. For example, the Angang Group's Gongchangling, Qidashan, Donganshan and other mines have introduced several H8800 single-cylinder machines, and the effect is not bad. Some manufacturers have developed single-cylinder machines based on the introduction of digestion and absorption. Most of them have been successful and failed. The main reason for the failure is that the imported products are not enough for digestion and absorption, and even the basic principles of the cone crusher are not mastered. Although some trial productions have been basically successful, there is no further research and improvement work. There is no department in China that specializes in crusher research, even if the crusher design research center only undertakes some general crusher design tasks. According to the data, the domestic development of crushers is not enough. According to statistics, the ratio of investment in technology and use in the digestion and absorption of imported technologies in Japan and South Korea is 1:5, while the ratio in China is 1:0.07. Therefore, both state-owned enterprises and private enterprises should increase investment in technological innovation.
3.2 Research and development of domestic large-scale single cylinder hydraulic cone crusher
In 2009, four ministries and commissions jointly proposed a project to develop a 2 000 mm single-cylinder hydraulic cone crusher. This is because the current wearing parts of large single-cylinder machines in China rely on imports and spend a lot of money each year. Therefore, there is an urgent need to develop and produce a large single-cylinder hydraulic cone crusher such as the H8800. The law of scientific development proves that innovation has always been “imitation” and “creation”. The development of a 2 000 mm single-cylinder hydraulic cone crusher should first be carried out on the basis of the development of H8800. Therefore, the H8800 single-cylinder machine should first be deeply digested and absorbed, and then made local. This can only be regarded as a technological advancement. It is still not innovative, and innovation should have its own things. It is hoped that the 2 000 mm single-cylinder machine project will be realized as soon as possible to fill the gap in the manufacturing field of China's large single-cylinder hydraulic cone crusher.
3.3 Application of high-tech research and development of new cone crusher
With the continuous development of new materials, new technologies and new processes, especially the application of modern technologies such as electronic computers, CAD simulation, virtual prototypes, optimized design (such as optimization of crushing chambers), the development and improvement of existing cone crushers Great progress has been made. The general direction of the research on the crusher is that the research on the crushing mechanism and the development of the existing crusher are the same, that is, the energy consumption and steel consumption are reduced, and the cone crusher with high efficiency and energy saving is manufactured. The research of the crusher is first of all the research of the crushing cavity, so that it can borrow the principle of laminating crushing to achieve the purpose of selective crushing. To this end, the key points of the new crusher design are: large swing, high swing frequency, large bottom cone angle, and the three must achieve the best match; use the optimized laminated crushing chamber and then input high energy, that is, The internal structure and parameters of the crusher are optimized and basically do not increase the size.
Second, innovation must improve the defects of existing crushers. Due to the complicated structure, complicated processing and installation process, the HP series multi-cylinder machine has serious wear and tear, especially in the course of operation. The H1800 series single-cylinder machine has simple structure, simple processing technology and installation process, and wearing parts. Long life, especially during operation, is one of the reasons why many large factories and mines introduced the H1800 series single-cylinder machine.
4 Conclusion
The basic starting point for the development of the new cone crusher is to draw on the superior performance of the HP series multi-cylinder machine, absorb the advantages of the simple structure of the H1800 series single-cylinder machine, and bring the two together, so that a new type of cone crushing can be innovatively developed. machine. At present, domestic scholars have designed a new cone crusher that combines the superior performance of a multi-cylinder machine with the simple structure of a single-cylinder machine. It is hoped that innovative manufacturers, research institutes and institutions of higher learning will work together to develop more and more superior international cone crushers with independent intellectual property rights.

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