How to choose a crawler-type mobile crushing station for hard rock crushing?

Classification:

Industry dynamics

source：

Author：

Time：2023-05-15 10:51

【Summary description】In the processing of machine-made sand and gravel, it is very important to master the properties of the raw material rocks, such as the physical and mechanical properties, mineral composition, chemical composition of the rocks, and the processing performance index of the rocks. It is mainly necessary to understand the crushing energy index and erosion index, which serve as important reference indicators for the initial equipment selection, subsequent production and processing, and maintenance of sand and gravel equipment. In simple terms, it refers to the breakability and abrasiveness in the rock processing performance.

In the processing of machine-made sand and gravel, it is very important to master the properties of the raw material rocks, such as the physical and mechanical properties, mineral composition, chemical composition of the rocks, and the processing performance index of the rocks. It is mainly necessary to understand the crushing energy index and erosion index, which serve as important reference indicators for the initial equipment selection, subsequent production and processing, and maintenance of sand and gravel equipment. In simple terms, it refers to the breakability and abrasiveness in the rock processing performance.

I. Fragmentation of Rocks

The crushing energy index WI is usually used to characterize the crushability of rocks, which is closely related to factors such as the chemical composition of the rocks, the development of joints (which can also be understood as cracks in the rocks), and the crystalline state. For instance, hard quartzite is very difficult to break, while limestone is much easier. The degradability of rocks affects the particle size of the discharged materials from crushing equipment, and thus influences the selection of equipment. Generally, according to the crushing energy index range, the rock's crushability is classified as 1422, which is extremely difficult to break. Medium-breakable limestone is more commonly used in daily civil buildings. In hydropower projects, common hard rocks include deep-formed igneous rocks (such as granite, syneite, diorite) and extrusive igneous rocks (such as basalt, diabase). Typical hard rock indices commonly seen in sand and gravel processing.

Ii. Abrasiveness of rocks

The abrasiveness of rocks is usually measured by the abrasion index AI and SiO2 content, which is related to factors such as the hard mineral content of the rock (SiO2, orthoclase, etc.), crystal structure, raw material size, and compressive strength of the rock. The abrasiveness of rocks mainly affects the service life and wear cost of wear-resistant parts during the operation period of equipment. Therefore, the abrasiveness of rocks is an important parameter for determining equipment selection. According to the rock abrasion index, the abrasiveness of rocks is classified as 0.40.8, indicating a relatively high abrasiveness.

The mobile gravel crusher for construction waste promotes the green development of cities

None

The mobile gravel crusher for construction waste promotes the green development of cities

None

Sand and stone are the basic and indispensable building materials in engineering construction. The Party Central Committee and The State Council attach great importance to the healthy and orderly development of the sand and gravel industry. In order to stabilize the supply of sand and gravel market, maintain the overall stability of prices, and promote the healthy and orderly development of the industry, with the consent of The State Council, on March 25, the National Development and Reform Commission and other fifteen departments and units jointly issued the Guiding Opinions on Promoting the Healthy and Orderly Development of the sand and gravel Industry.

The gap in the sand and stone industry is as high as 80%

Under the impact of the epidemic, since the resumption of work across the country after the Spring Festival, many provinces have issued 2020 project investment plans. As of March 20, the total investment of 22,000 projects announced by 25 provinces and municipalities, including Beijing, Hebei, Shanghai, Guangdong, Sichuan and Ningxia, reached 49.6 trillion yuan, of which the total planned investment in 2020 was 7.6 trillion yuan. There are increasingly clear signs that big infrastructure is becoming a new driving force for the economy.

Crawler mobile impact crushing station low capacity, less money how to do?

Because of its simple operation, convenient transfer, high cost performance, high output, good product particle shape, and environmental protection dust treatment device in line with the relevant requirements of the state for environmental protection, the caterpillar mobile impact crushing station has been widely popular in recent years. It is more common to apply to the initial processing of solid waste resources such as construction waste regeneration, the past caterpillar mobile crushing station is usually combined with caterpillar mobile screening station, and some enterprises have developed a new caterpillar mobile crushing and screening machine, which can not only produce, but also effectively reduce the user's purchase cost. Without loss, it is an alternative for the primary processing of solid waste resources such as construction waste.

说明页内容……

Midas · provide you with professional material handling program!

Close to users, collaborative user progress; With continuous innovation, enrich and enhance the user experience.

 Get Quote

Pay attention to WeChat public number

Mobile phone official website

  

This website supports IPV4/IPV6

SEO Label Cloud Information

Business License