The Roots blower in the coal washing plant is a commonly used equipment in the coal washing process. The following is a detailed introduction to the Roots blower in the coal washing plant:
1、 Structure and Principle
1. Structure: The coal washing Roots blower is mainly composed of a shell, impeller, main shaft, inlet and outlet, sealing device, etc.
2. Working principle: By rotating the impeller of the fan, wind power is generated to suck in impurities such as coal powder from the inlet, and through high-speed rotation inside the fan, the impurities such as coal powder are discharged towards the outlet, achieving the effect of separation and cleaning. Specifically, during the operation of the coal washing Roots blower, the driving device drives the impeller to rotate at high speed, generating negative pressure, which causes impurities such as coal powder at the inlet to be sucked in. As the impeller rotates, impurities such as coal powder are subjected to centrifugal force inside the fan and discharged towards the outer wall, while the screened coal powder is thrown towards the outlet.
2、 Performance parameters
The main performance parameters of the Roots blower in the coal washing plant include speed, pressure (including intake pressure and exhaust pressure, also known as static pressure), flow rate (the volume of gas flowing through the fan section per unit time), shaft power, and exhaust temperature. The selection of these parameters should be determined based on the actual needs of the coal washing plant.
3、 Characteristics and advantages
1. High efficiency: The coal washing Roots blower can effectively suck in and discharge impurities such as coal powder, improving the efficiency of coal washing.
2. Corrosion resistance: Due to the possibility of producing corrosive gases or liquids during coal washing, coal washing Roots blowers are usually made of corrosion-resistant materials to ensure their long-term stable operation.
3. Low noise: The design of the three bladed impeller makes the coal washing Roots blower operate with low noise, reducing noise pollution.
4. Easy maintenance: The structure of the coal washing Roots blower is simple, easy to disassemble and clean, and easy to maintain.
4、 Selection and purchasing suggestions
1. Clear requirements: Before purchasing a Roots blower from a coal washing plant, it is necessary to first clarify the actual needs of the plant, including the purpose of the blower, working environment, performance requirements, etc.
2. Compare different brands and models: Compare different brands and models of Roots blowers from coal washing plants in the market to understand their differences in performance, price, after-sales service, and other aspects. Prioritize selecting products from well-known brands and reliable manufacturers to ensure the quality and after-sales service of the fan.
3. Consider cost-effectiveness: When purchasing, not only should the price be considered, but also the cost-effectiveness of the fan, that is, the ratio of performance to price. Choosing products with high cost-effectiveness can reduce costs and improve economic efficiency.
5、 Maintenance and upkeep
In order to extend the service life of the Roots blower in the coal washing plant and maintain its good performance, regular maintenance and upkeep are necessary. Specific measures include:
1. Regular cleaning of internal dust accumulation: Regularly clean the impeller, inlet and outlet, and discharge outlet to avoid dust accumulation affecting the efficiency of the fan.
2. Lubrication and inspection of bearings: Ensure that the bearing parts receive good lubrication, regularly check the wear of the bearings, and replace severely worn bearings in a timely manner.
3. Check the sealing device: Regularly check whether the sealing device is intact, and replace the sealing components in a timely manner if necessary to prevent gas leakage.
In summary, the Roots blower in the coal washing plant is one of the indispensable equipment in the coal washing process. By understanding its structure and principles, performance parameters, characteristics and advantages, as well as selection and purchasing suggestions, one can better choose and use Roots blowers in coal washing plants, improve coal washing efficiency, and reduce operating costs.
