As an important basic industry in China, the coal industry has a huge demand for mining vibrating screens. Choosing a suitable mining vibrating screen can not only improve production efficiency, but also reduce operating costs. The following is an introduction to the precautions for purchasing mining vibrating screens:
1. Material characteristics
The selection of mining vibrating screens first needs to be determined based on the characteristics of the screened materials. The type, bulk density, moisture content, particle shape, particle size composition, maximum feed particle size, and material viscosity of coal all affect the screening effect of the vibrating screen. For example, coal with high humidity or high mud content is prone to clogging the sieve holes, and it is necessary to choose a sieve with anti clogging function. In addition, coal of different particle sizes requires different mesh sizes and screening methods.
2. Homework shift system and screening processing capacity
Coal production usually requires continuous operation, so the operation shift system of vibrating screens (such as three shift system) and screening processing capacity are important considerations. Users need to determine the processing capacity and screening efficiency of the vibrating screen based on production needs. For example, large coal preparation plants may require vibrating screens with high processing capacity and screening efficiency, while small coal mines may place more emphasis on equipment flexibility. Meanwhile, the prescribed screening particle size and corresponding screening efficiency are also key factors affecting equipment selection.
3. Screening method and installation method
The screening methods include linear screening, circular vibration screening, banana screening, etc., each of which is suitable for different material characteristics and production needs. For example, the banana sieve has a special structure and high screening efficiency, making it suitable for coal preparation plants with large processing capacities. The installation methods include seated and suspended, and the motor installation methods can also be divided into left mounted and right mounted. Users need to choose the appropriate installation method based on site conditions and equipment layout.
4. Working conditions of vibrating screen
The working conditions of vibrating screens have a significant impact on equipment selection and service life. For large coal production enterprises, space size may not be a problem, but for small enterprises, the footprint and installation space of equipment need to be carefully considered. In addition, environmental temperature and dust prevention requirements are also important considerations. For example, in high dust environments, a closed structure vibrating screen should be selected to reduce dust leakage.
5. Other precautions
Maintainability: The vibrating screen is prone to wear and tear during operation, so it is necessary to choose equipment that is easy to maintain and repair to reduce downtime.
• Safety: The protection level of the vibrating screen should meet the requirements of safety regulations, especially the explosion-proof level of the vibrating motor.
Energy saving: Choosing a vibrating screen with low energy consumption and low noise can not only reduce production costs, but also meet environmental protection requirements.
When selecting a mining vibrating screen, users need to consider the above factors comprehensively and choose the most suitable equipment based on their own production needs. I hope the above content is helpful to you.
