The coal washing Roots blower is an important equipment widely used in the coal washing process. The following is a detailed introduction to it:
1、 Working principle
The working principle of the coal washing Roots blower is to use the double rotating impeller of the Roots blower to form a high-speed rotating airflow inside the machine body, and to adsorb and transport coal particles through negative pressure. During the coal washing process, the airflow generated by the Roots blower sucks in coal particles from the washing tank and sends them to the next processing step through the conveying pipeline. Through this method, the coal washing process can be completed quickly and efficiently, improving production efficiency.
2、 Structural composition
The coal washing Roots blower is mainly composed of a shell, impeller, main shaft, inlet and outlet, sealing device, etc. Among them, the impeller is the core component that generates airflow through high-speed rotation; The shell plays a protective and supporting role; The main shaft connects the impeller and the driving device to transmit power; Import and export are used for the suction and discharge of airflow; The sealing device ensures the airtightness inside the fan and prevents gas leakage.
3、 Performance parameters
The performance parameters of the coal washing Roots blower mainly include speed, pressure, flow rate, shaft power, and exhaust temperature. These parameters are important indicators for measuring the performance of wind turbines and are also key factors to consider when selecting. For example, the rotational speed determines the output airflow velocity of the fan; Pressure affects the conveying capacity of the fan; Flow rate represents the amount of gas transported by the fan per unit time; The shaft power reflects the energy consumption of the fan; The exhaust temperature is closely related to the operating efficiency and performance of the fan.
4、 Advantages and Characteristics
1. Energy saving: The coal washing Roots blower has reliable characteristics, which can improve the coal washing effect and reduce energy consumption. Its energy efficiency is relatively high, and compared to other exhaust equipment, Roots blowers consume much less energy.
2. Strong adaptability: Roots blowers can adapt to different gas and flow conditions, and have a wide range of applications in the coal washing industry and other industries.
3. Low noise: Roots blower produces less noise during operation, which can reduce indoor noise pollution compared to other exhaust devices.
4. Easy maintenance: The structure design of Roots blower is simple, easy to disassemble and assemble, and the maintenance cost is relatively low. At the same time, its maintenance interval is relatively long, which reduces the operating costs of the enterprise.
5、 Selection and Installation
Selection principle:
1. Air volume matching: The air volume of the Roots blower should match the demand of the coal washing machine and consider the reserve capacity.
2. Appropriate wind pressure: Select the appropriate wind pressure range based on the coal quality, moisture content, and washing effect of the coal washing machine.
3. High efficiency: Choosing a high-efficiency Roots blower can reduce energy consumption and improve coal washing efficiency.
4. Low noise: Considering the usage environment of the coal washing machine, choose a fan with lower noise levels.
Installation points:
1. Before use, check whether each component is complete and whether the connections of bolts and nuts are loose.
2. Ensure that the base of the equipment is sturdy and the anchor bolts are tightened.
3. Inject the specified grade of engine oil into the oil level line, usually using N220 medium load working gear oil.
4. Ensure that the motor direction meets the directional requirements and install a belt sleeve (protective cover) on the pulley (coupling).
5. Before starting, ensure that the inlet and exhaust valves of the fan, as well as the rotor of the rotating fan, are open and flexible, without collision or friction.
6、 Daily maintenance
During normal use, it is necessary to regularly inspect and maintain the coal washing Roots blower. It mainly includes the following aspects:
Cleaning and dust removal: Regularly clean the air inlet and outlet of the fan to avoid blockage by dust and debris, which may affect the normal operation of the fan.
Lubrication and maintenance: Regularly lubricate key components of the fan, such as bearings and gearboxes, to maintain their flexibility and stability.
Inspection and positioning: Regularly inspect and position the fan to ensure the fastening and operational status of each component, and promptly detect and eliminate potential faults.
Replace vulnerable parts: Regularly replace vulnerable parts of the fan, such as sealing rings, retaining rings, etc., to extend the service life of the equipment.
