Limestone has a high utilization rate in crushing and is abundant in reserves throughout the country. Its main component is calcium carbonate, which can be used as high-quality stone in construction, railways, roads and other fields. And limestone is favored by many investors in the mining industry because of its low mining cost. The selection of limestone mine crushing equipment needs to be carefully considered at the beginning of investment. In the limestone production line, how to choose equipment to meet our production needs and make a larger profit margin in the later stage?
Composition of limestone crushing production line
The limestone production line mainly consists of feeder, jaw crusher, impact crusher, hammer crusher, vibrating screen, sand making machine, etc. Among all commonly used crushed stones, limestone has a relatively low hardness, so the above equipment is used more. Of course, if the output is large and the production needs are different, then the cone crusher is also a “weapon” for crushing limestone.
The initial block of limestone is large, and it can be evenly fed into the jaw crusher through the feeder. After the initial crushing, it is conveyed to the impact crusher through the conveyor for medium and fine crushing, and screened through the vibrating screen.
Therefore, the initial equipment investment of the limestone production line is relatively small, and the price of these equipment is relatively low compared to other equipment, so the profit margin is still relatively large.
Each different production line, no matter what stone is crushed, has different demands for stone. In addition to the demand, the size of the site, the chemical composition of the stone, the cost investment budget, etc. are also different, so when choosing equipment, all aspects should be considered. For the limestone crushing production line, we introduce the coarse processing equipment and fine crushing equipment.
Generally, the jaw crusher is selected for the first crushing. Of course, large-scale production lines can choose multiple jaw crushers to match, or a gyratory crusher can be selected. The model naming rules of jaw crushers from different manufacturers are different. For example, the jaw crusher of SMAT Machinery is also called PE jaw crusher, which can be divided into coarse crushing and medium crushing.
Coarse crushing and medium crushing are divided into different models, and different models have different outputs, motor power and other parameters. After the first crushing by the jaw crusher, the fine crushing equipment will be used to crush the stone again.
The fine crushing equipment can be an impact crusher, because the hardness of limestone is relatively low, and the impact crusher is more suitable for stones with low hardness, such as coal gangue.
If the output requirement is large, the cone crusher can be used directly. At least 100 tons of stone can be crushed in one hour.
If the specifications of the stone are high, a sand making machine, that is, an ultra-fine crushing machine, can be used afterwards.
How to choose a limestone crusher according to your needs?
1.Material needs:
Hardness: The hardness of limestone is usually between medium and high hardness. For limestone with higher hardness, it is recommended to choose a jaw crusher or a cone crusher.
Particle size: Choose a suitable crusher according to the initial particle size and target particle size of the limestone. A jaw crusher can be selected for coarse crushing, and an impact crusher or a cone crusher can be selected for fine crushing.
2. Production needs:
Production capacity: Choose a suitable crusher model according to the production scale. A cone crusher can be selected for large-scale production, and a jaw crusher or an impact crusher can be selected for small-scale production.
Discharging requirements: Select the discharging particle size of the equipment according to the downstream process requirements. An impact crusher can be selected for scenes with higher requirements for the particle size of the finished product.