The machine-made sand production line is a special production line equipment for producing construction sand. It can provide high-quality sand and gravel aggregates for highways, railways, high-rise buildings, municipal engineering, concrete mixing stations, etc. In actual production, scientifically setting the stone production line can quickly improve the production efficiency of the equipment and quickly recover the cost and profit. So how to configure the machine-made sand production line to be reasonable and efficient? There are eight design points of the production line configuration.
Eight design points of the machine-made sand production line:
1. Determine a reasonable location of rough crushing
According to the quality of the mineral resources of the enterprise, it should considered planned mining period and the location of the sand and gravel plant. It is suitable to arrange the sand and gravel plant near the quarry to reduce the transportation distance of raw materials. When the quarry is far away from the main users, it is advisable to arrange the rough crushing in the quarry, then for continue processing and manufacturing to the main factory.
2. Sand and gravel plant site selection
(1). The plant site must avoid the danger blasting zone, the safety distance should comply with the relevant regulations, and the distance from the blasting point should be more than 200m.
(2). The plant site should be close to the existing transportation roads, water sources and power sources.
(3). The factory site should be far away from towns or residential areas. When it must be installed in towns or residential areas, it should be arranged on the leeward side of the dominant wind direction and maintain the necessary protective distance.
3. General graphic design
(1). It must meet the relevant specifications or regulations of technology, transportation, fire prevention, construction, etc.
(2). On the premise of meeting the technological requirements, the overall layout should be as compact as possible to save land, and at the same time, there should be room for equipment operation and maintenance.
(3). Make full use of the existing terrain for vertical design to reduce the amount of earthwork and make the crushed materials flow or flow freely.
(4). The rough breaking position should be close to the incoming direction of the material yard, and the finished material yard should be close to the transportation road.
(5). Avoid arranging important workshops such as crushing, screening, and sand making in karst caves, landslides, debris flows and filling areas. If it is necessary to arrange in the above-mentioned areas, it should be fully technically demonstrated and reliable treatment measures should be taken.
4. Electrical automation
The electrical automation design should adopt an advanced, reliable and high-level automation DCS or PLC control system to achieve high efficiency, energy-saving, stable production, optimal control, etc., and minimize the number of operating posts and production costs.
5. Building structure
The architectural design should strictly comply with the current national architectural design codes and standards, pay attention to the ventilation, heat dissipation, sound insulation and shock absorption of the workshop, and take technical measures such as fire prevention, explosion-proof, waterproof and moisture-proof.
6. Water supply and drainage and HVAC
(1). The water used in the aggregate production line mainly considers several aspects such as water for spray dust removal, water for washing sand and gravel, water for domestic use, and water for fire fighting. The drainage system adopts a separate drainage system for rainwater and production and domestic wastewater.
(2). In the heating area stipulated by the state, centralized heating should be considered in the design.
(3). The design capacity of the compressed air station not only considers the total gas consumption of each gas consumption point in the whole plant but also considers factors such as pipeline leakage and safety factor (1.2~1.3).
7. Mining
In terms of mining, through the analysis of mining exploration data, according to the conditions of the ore body, a plan for mine development and utilization is formulated, mine resources are rationally utilized, reforestation is considered, and adverse geological disasters are avoided, so as to achieve development and utilization, ecological protection, resource conservation and environmental protection. friendly.
8. Production process
The process design must first determine the production scale, carry out the process balance calculation, and reasonably determine the process equipment capacity and operation rate. Carry out material balance calculation, and reasonably determine the storage method and storage period of various materials. According to the characteristics of the dust in the production process, determine the dust removal plan, calculate the air volume, and choose the dust collector reasonably.
Analyze the soil content, hardness and other characteristics of the ore, according to the characteristics of the region where the enterprise is located, through the comparison of plans, reasonably select equipment such as soil removal, crushing, screening, sand making, dust removal, transportation, etc. The process design balances the electricity, water, and gas consumption of the whole plant. Using the system theory, the performance matching of each link of the machine-made sand and gravel production line can be optimally matched, so that the entire production line can run with high quality and efficiency.
