China 's mining machinery industry and international mining machinery production big country posture is compared, gestates tremendous development potential, however, from the present situation of China mining machinery industry, foreign mining equipment industry has many merits our reference and study; natural environment oriented to realize harmonious development, requirements of" energy saving and environmental protection of mining machinery".
Crusher is a kind of special used for ore primary equipment, its production environment are relatively poor. In general the hammer head, jaw, broken boards require quarterly replacement, and the crushing chamber during operation due to withstand the stress, is generally required in the 1-2years for replacement or repair. Sand making machine because of its production environment for fine-grained material more, and precision control is more demanding than the crusher. The impeller of the sand making machine conditions, generally longer service life, but should consider its impeller and a sand outlet, easy loss of parts repair. If handled correctly, the general life of about in the 3-5years.
Magnetic separator for iron ore beneficiation, its entire sorting on the requirements of high magnetic device. So the magnetic conductor and coil easy loss of life in the 4-5years, general. Because of the many manufacturers of magnetic products change rapidly, faster update frequency. If we consider the new technology and other requirements, generally about 3 years would need to be replaced, the flotation machine is mainly wet beneficiation Pharmacy beneficiation, frequently used in mechanical device. The contact with corrosive chemical substances on the cabin have serious corrosion effect. So after a period of work, must use special paint for protection from. General conditions of flotation arm, scraper blade, short service life, about1-2 year they replaced, machine can be considered in4-5years after renewing conveyer dressing auxiliary device whose contact material physical movement of large, and the operating environment is very bad, so under normal circumstances can be considered in the replacement or its main accessories are updated so as to effectively so that other devices in the full load operating condition.