As we all know, China is a big capital construction country, and there is a huge demand for sand aggregate. However, in recent years, due to the limited exploitation of natural sand and the influence of environmental protection inspectors, the supply of sand aggregate in most areas is in short supply and the price has soared. Under the influence of various conditions, machine-made sand has become the general trend of current and future development. Recently, many people have come to consult about investing in sand and gravel plants. Today, Bian Xiao will discuss with you from the aspects of preparatory work, equipment purchase and later operating expenses.

Phase I preparation

The preparatory work in the early stage is mainly formalities, because the production of sand and gravel factory may involve the exploitation of mineral resources, so the environmental assessment procedures, industry and commerce, mining licenses and other documents are essential. In addition, the production capacity of the sand and gravel factory also has certain requirements, and the factory needs to be equipped with corresponding full-time safety management personnel. However, due to the different policies and market conditions in different provinces, the cost and time spent on the accreditation process are also different. Interested in investing in sand and gravel plants can consult in detail.

equipment procurement/purchasing

When purchasing equipment, it is mainly based on the following principles:

1. The equipment shall conform to the characteristics of raw materials and meet the size of feed particle size.

2. Try to purchase the equipment with the same operation from the same manufacturer, model and specification, so as to simplify the model and facilitate the later maintenance.

3. If it is mass production, try to choose the corresponding large-scale equipment, and the number of equipment in the same operation should not be less than two.

4. Choose equipment that is easy to operate, saves investment and energy consumption, and can reduce operation and management costs.

Because everyone has different requirements for raw materials and finished products used for sand making, when configuring the scheme of processing production line, it is necessary to choose the appropriate equipment and scheme according to the actual needs of project scale, material characteristics, production capacity and granularity. Let's share with you the commonly used equipment of sand and gravel production line:

Coarse crushing-jaw crusher

Jaw crusher is simple in structure and convenient in later maintenance, and is widely used to crush hard, medium hard and soft ores. In addition, the jaw crusher has a high flake content, so it is often used for coarse crushing in large and medium-sized sand and gravel production lines. In small production systems, in order to reduce equipment investment, it is often broken.

Medium-sized cone crusher

Cone crusher has high efficiency, large crushing ratio and uniform discharging particle size. However, the feed particle size is relatively small, which is suitable for medium, fine and ultra-fine crushing of various ore materials.

Sand forming-vertical shaft impact crusher

Vertical shaft impact crusher combines the principles of "striking stone with stone" and "striking iron with stone", which ensures the excellent shape of discharged finished particles and is mainly used for shaping; "Strike while striking iron" is mainly used to make sand to ensure the productivity of finished products.

Post-operation

Post-operation expenses include post-operation expenses of equipment, public facilities required for production and operation, staff salaries and equipment maintenance (replacement of wearing parts), so after-sales service is also a key factor to consider when purchasing equipment.

The above are some problems that may be involved in sand factory investment, and some details may not be mentioned. If you have any other questions, you can consult in detail.