The ore used for smelting should be sintered before smelting, sintering machine should be used for sintering, and the sintering furnace needs to use the main exhaust fan and cooling fan, and the centrifugal blower has become the mainstream choice for the main exhaust fan used in the sintering plant with its large air volume and high negative pressure performance characteristics.
Advanced aerodynamic design and efficient motor systems provide stable and efficient air flow in various production processes. By optimizing airflow distribution and reducing energy loss, the Shuangjian blower can significantly improve energy efficiency.
Shuangjian blower adopts strict standards and measures in quality control. From raw materials into the factory to finished products, every link has undergone strict quality testing and monitoring. Through advanced testing equipment.
High quality accessory selection and reliability design provide sufficient equipment strength and durability for the Shuangjian blower, and reduce maintenance costs. Selection of domestic and foreign well-known brand accessories.
The fan is equipped with sliding bearing, thin oil station, high fuel tank and a complete set of safety interlock protection system, and the shell is horizontally divided, and the fan inlet and outlet pipes are horizontally connected with the shell inlet.
Hubei Shuangjian has dozens of CNC machine tool production lines and robot welding equipment, from steel plate cutting, bending, planing, milling to painting, all realize digital control, high processing precision, some core components accurate.
Hubei Shuangjian as a set of production and sales in one of the strength of the enterprise, we are responsible for their production of each piece of equipment, to provide customers.
Sintering fan introduction:
The ore used for smelting should be sintered before smelting, sintering machine should be used for sintering, and the sintering furnace needs to use the main exhaust fan and cooling fan, and the centrifugal blower has become the mainstream choice for the main exhaust fan used in the sintering plant with its large air volume and high negative pressure performance characteristics.
Depending on the different sections of the fans in the Sintering system, they are called (taking the sintering ring cooling/cooling fan model of the Hubei Double Sword Blower as an example) : sintering main extraction fans, sintering ring cooling/cooling fans, head/tail dust removal fans, sintering machine ignition aid fans, etc.
As the main smoking machine of sintering machine, the power consumption of sintering blower accounts for more than 50% of the total power consumption of sintering plant. And because the medium transported is sintering flue gas, the dust content is large, therefore, improving efficiency, reducing energy consumption, strengthening wear-resistant measures, and improving service life are still the main technical topics of sintering centrifugal blower.
The air volume of the sintering blower depends on the sintering area of the sintering machine. The pressure depends on the thickness of the sinter layer.
At present, the large-scale sintering machine (has been able to produce 1000 m2 sintering machine) and thick material layer (has reached 700mm), prompting the sintering centrifugal blower to develop in the direction of large air volume and high negative pressure. The maximum flow rate of sintering centrifugal blower is 23000m3/min, the maximum pressure is 19620Pa, and the maximum power is 14500kW.
Due to the limitation of manufacturing process conditions and transportation conditions, the sintering induced draft fan supporting the extra-large sintering machine often adopts the form of double parallel.
Sintering blower selection principle scale
(m2 sintering) Selected fan (series) Scale (m2 sintering) Selected fan (series)
20-30 SJ1800-SJ2800 130-160 SJ12000-SJ16500
30-36 SJ3000-SJ3600 160-180 SJ16000-SJ18500
40-50 SJ4000-SJ5500 200-250 SJ10000-SJ13500(Two parallel)
55-75 SJ5500-SJ7500 250-300 SJ12000-SJ16000(Two parallel)
80-90 SJ7500-SJ10000 300-350 SJ16000-SJ18500(Two parallel)
100-130 SJ10000-SJ15000 350-450 SJ18500-SJ21000(Two parallel)
Wear resistance measure
Serrated center plate
It can not only improve the airflow distribution at the impeller outlet and reduce GD 2, but also avoid the wash of flue gas on the middle disk
Wear-resistant lining surfacing
The blade is equipped with a replaceable wear-resistant liner (tungsten carbide surfacing on the liner surface)
Replaceable cone
The middle disc is protected from wear by a replaceable cone
Surface strengthening treatment
Surface surfacing, thermal spraying, boriding, laser surface hardening and high frequency hardening, etc
At present, the research on the two-phase flow (solid particles and sintering flue gas) of sintering centrifugal blower aerodynamic design is being carried out abroad, trying to further solve the wear problem of sintering induced draft fan from the aspect of air dynamics.
Appearance inspection: Check the appearance of the blower regularly to confirm that there is no damage, deformation or rust.
Running sound: Monitor the running sound of the blower. If there is abnormal sound, stop the machine immediately for inspection.
Vibration: Check the vibration of the blower regularly to ensure that it is within the allowed vibration range.
Lubricating oil inspection: check the oil level and quality of lubricating oil regularly to ensure that it is within the specified range, and replace the deteriorated lubricating oil in time.
Grease replacement: For the parts that use grease, it is necessary to replace it regularly to ensure the lubrication effect.
Cooling water inspection: For the blower with water cooling, it is necessary to regularly check the flow rate and temperature of the cooling water to ensure that the cooling effect is good.
Cooler cleaning: Clean the cooler regularly to prevent its blockage affecting the heat dissipation effect.
Internal cleaning: Regularly clean the dust and debris inside the blower to avoid damage to the blower.
Fastener inspection: Check the fasteners inside the blower to ensure that they are tight and not loose.
Motor inspection: Check the running status of the motor regularly to ensure its normal operation.
Cable check: Check the connection and insulation of the cable to ensure that there is no damage or aging.
Shutdown cleaning: When the blower is shut down, thoroughly clean the dust and dirt inside and outside the blower.
Downtime inspection: Use downtime to conduct a thorough inspection of the blower to find and deal with potential problems.
Our company has strong technical research and development capabilities, and has established several research workstations to bring sustained vitality to the improvement and progress of Shuangjian's technical research and development capabilities.
Supporting auxiliary support technology and functional control technology for modern design and manufacturing of new wind turbines, establishing a network CAD system, using deformable simulation analysis software to achieve intelligent product design and process design.
Our company has developed dozens of quality management documents in accordance with the requirements of the ISO9001:2000 quality management system, including the Quality Manual, Procedure Documents, Incoming Inspection Specification, Process Inspection Specification, Finished Product Inspection Specification, Equipment Operation Regulations, Assembly Operation Manual, and Test Equipment Operation Manual.
We are willing to continue to cooperate sincerely with new and old friends at home and abroad with higher quality products and more comprehensive services, and create win-win results together as always!
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Email:sjxs@hbfj.cn
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