Technical guidance and selection of Roots blower manufacturer for metal ash pneumatic conveying
When choosing a metal ash pneumatic conveying Roots blower, multiple factors need to be considered to ensure that the selected equipment can meet actual needs and have stable performance. The following is a selection technical guide from the manufacturer's perspective:
1、 Clear usage requirements
1. Flow and pressure: Determine the flow and pressure that the Roots blower needs to provide according to the system design requirements. Considering the surplus capacity and air leakage loss of the system, the flow rate should generally be 1.11.25 times the required flow rate of the system. The margin that should be left for boosting is generally 1.051.15 times the system pressure drop.
2. Gas composition: Analyze the composition of metal ash and the gas components that may be generated during transportation to ensure that the material and structure of the Roots blower are corrosion-resistant and explosion-proof.
2、 Consider performance parameters
1. Airflow: Airflow refers to the actual amount of gas flowing into a Roots blower per unit time, commonly measured in m3/min. In metal ash pneumatic conveying, the size of the air volume directly determines the conveying capacity.
2. Wind pressure: Wind pressure refers to the gas pressure at the outlet of a fan, commonly measured in kPa or mmHg. The magnitude of wind pressure affects the flow rate and transportation distance of gas.
3. Rotational speed: Rotational speed refers to the number of revolutions of the active shaft of a Roots blower per unit time, commonly measured in r/min. The speed directly affects the air volume and pressure of the fan.
4. Shaft power: Shaft power refers to the power transmitted from the prime mover to the main shaft of a Roots blower per unit time under flow and head conditions. The magnitude of shaft power determines the energy consumption and efficiency of the fan.
5. Exhaust temperature: Exhaust temperature refers to the temperature of the gas at the outlet of the Roots blower. The high or low exhaust temperature will affect the stability of the conveying system.
3、 Choose the appropriate structure and material
1. Structure: Select the appropriate Roots blower structure based on the usage environment and medium characteristics. For example, in pneumatic conveying of metal ash, it may be necessary to choose a structure with explosion-proof, corrosion-resistant and other characteristics.
2. Material: The material of the Roots blower should be corrosion-resistant, wear-resistant, and suitable for high temperature, high pressure, and other conditions during the pneumatic conveying of metal ash.
4、 Consider attachments and control systems
1. Attachment: Select appropriate accessories such as one-way valves, filters, etc. to ensure the normal operation and extend the service life of the Roots blower.
2. Control system: Choosing a Roots blower with advanced control system can achieve remote monitoring, automatic adjustment and other functions, improving the stability and efficiency of the conveying system.
5、 Choose manufacturer and service
1. Manufacturer strength: Choose manufacturers with strong research and development capabilities, production capabilities, and management capabilities. These manufacturers are usually able to provide better products and more comprehensive after-sales service.
2. Price and Quality: Choose products with good quality and high efficiency at a reasonable price. This can reduce operating costs, improve output efficiency, and extend service life.
6、 Practical cases and experience reference
1. Reference case: Refer to the configuration of existing similar systems or analogize and calculate based on similar devices to determine the operating parameters of Roots blowers.
2. Consultation: During the selection process, experienced engineers or technicians can be consulted for more advice and guidance.
In summary, selecting a suitable model of Roots blower for metal ash pneumatic conveying requires comprehensive consideration of multiple factors. By clarifying usage requirements, considering performance parameters, selecting appropriate structures and materials, considering accessories and control systems, selecting manufacturers and services, and drawing on practical cases and experience for comprehensive analysis and comparison, a Roots blower model that meets both usage requirements and is economically reasonable can be selected.
