I. Development of Mobile Crushing Plant
With the gradual expansion of the scale of China's open pit mining in recent years and the gradual increase in the number of the use of semi-continuous mining process is a fundamental way to reduce the cost of mining, saving fuel consumption, is the development trend of open pit mining project. The emergence of mobile crushing plant creates conditions for realizing the advanced semi-continuous process of single bucket chainsaw mining and mobile crushing plant, and has been gradually applied and promoted in China. Semi-continuous process is a new type of open pit mining process developed in the 1960s, which was first applied to a limestone mining in Germany. After years of application and development, the technology is becoming more and more mature.
Mobile crushing plant is one of the important core equipments for mining on surface mines, and its innovation lies in its unique functionality and mobility, which assembles the traditional crushing and screening equipments together and realizes automatic or semi-automatic control through the electric control system and the hydraulic system, so as to enable it to carry out freely along with the electric shovel in the mining working surface, and convey the crushed materials through the belt conveyor system, so as to completely get rid of the use of trucks and Greatly reduce the operating cost of surface coal mine, bring significant economic benefits to the mine. The equipment has been applied in many large-scale open-pit mines in Inner Mongolia and Shanxi, and with the development of large-scale open-pit mines all over China, the mobile crushing plant will be applied more and more. Therefore, the research and development and localization of this equipment has become an important topic in open pit mining. Now we will talk about the mobile crushing plant with the domestic situation.
Composition of mobile crushing plant
Mobile crushing plant is a number of crushing and screening units composed of crushing equipments, feeding equipments and screening equipments which are combined and installed on the movable frame according to the process requirements. According to the crushing process of the material, a number of crushing and screening units are selected to form a crushing production line, usually the material is uniformly transported to the crushing equipment through the feeding silo and feeder, and the crushed material is transported to the other crushing and screening units by the belt conveyor, and the material is crushed and screened to the required size, and then transported to the finished product pile by the belt conveyor. Mobile crushing plant is a movable crushing and screening equipment integrating feeding, crushing, screening, conveying and electrical control.
The core equipment of mobile crushing plant should be crusher. At present, there are several types of crushers used in mobile crushing plant: jaw crusher, gyratory crusher, cone crusher, impact crusher, hammer crusher, roller crusher, toothed roll crusher, vertical shaft impact crusher and so on.
Third, mobile crushing plant has the following advantages:
1. Flexible mobility:
It is very convenient for ordinary mobile transition, saving the time to quickly enter the construction site. It is more conducive to moving in the reasonable construction area, eliminating the cumbersome steel frame structure and foundation construction in the crushing process, saving a lot of time.
2. Reduce material costs:
Sites can be directly selected and opened to the site to directly achieve the finished granularity; in addition, the expansion unit can feed crushed material directly into a specific conveyor belt conveyor, thus eliminating transportation costs. Customers can provide more flexible process planning configurations for the type of material and product requirements of the process, and meet a variety of user requirements such as mobile crushing and mobile screening, resulting in more direct and efficient organization and logistics transfers at a lower cost. Maximize. .
3. Strong adaptability and flexible configuration:
Mobile crushing plant provides customers with simple and low-cost special combination unit configuration. For the medium crushing and screening system, it can be operated independently by a single unit or flexibly composed by system configuration units.
4. Reliable performance and maintenance:
Mobile crushing plant is generally equipped with high-performance crusher, high crushing efficiency, high versatility, excellent crushing product quality, lightweight and reasonable structural design and excellent crushing performance. Lightweight and reasonable structural design and excellent crushing performance. Maximum range to meet the requirements of coarse, medium and fine material crushing and screening.
The crushing mobile plant developed and produced by Shanghai Dingbo Heavy Industry Science & Technology Co., Ltd. is characterized by high processing capacity, large feed opening, small transportation volume and low wear and tear cost. It can directly penetrate the construction site of builders. Small stone processing plant, intelligent and efficient.