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Dust collecting in the feed mills centrifugal dust extraction fan
- 30 Set / Sets per Month
- Qingdao
- T/T
Product Details
Electric Current Type: | AC | Blade Material: | Stainless Steel | Mounting: | Free Standing |
Place of Origin: | Henan, China | Brand Name: | Hengmu | Model Number: | as your need |
Power: | as your need | Voltage: | as your need | Air Volume: | as your need |
Speed: | as your need | Certification: | CE, Other, CE, TUV | After-sales Service Provided: | Engineers available to service machinery overseas |
Product Description
Dust collecting in the feed mills centrifugal dust extraction fan
1. Range of application
Centrifugal fan is the power equipment of pneumatic conveyor. It intakes air from the air entry and provides negative pressure to convey materials. Low and middle pressure fan is normally used for dust collecting in the feed mills.
2. Type
The centrifugal fan can be made into two types: right-handed rotation and left-handed rotation. Facing the fan rom the drive line, if the fan impeller rotates clockwise, it is called right-handed rotation, short for “R” ; and if the fan impeller rotates counter-clockwise, it is called left-handed rotation, short for “L”. Both right-handed and left-handed can be made into angles 0°,90 °and 180°.
3. Specifications
Models | Spindle speed (r/min) | Total pressure (pa) | Flux (m³/h) | Motor | ||
series | No. | |||||
model | power(kw) | |||||
A-72 | 2.8A | 2900 | 994-606 | 131-2356 | Y90S-2 | 1.5 |
3.2A | 2900 | 1300-792 | 1688-3517 | Y90L-2 | 2.2 | |
3.6A | 2900 | 1578-989 | 2664-5268 | Y100L-2 | 3 | |
4A | 2900 | 2014-1320 | 4012-7419 | Y132S1-2 | 5.5 | |
5A | 2900 | 3187-2019 | 7728-15455 | Y160M2-2 | 15 |
4. Structure and operating principle
When the fan is working, the motor takes the the fan impeller rotated at high speed,air come through the air entry into the flow between vanes and is pushed away around by the centrifugal force, then gathered in the snail shell of the fan and discharged by the air outlet. At the same time in the center of the impeller there is a low pressure area, the outside air continuously go into the fan because of the pressure difference. By the action of the vanes, the air become motive power for pneumatic conveyance.
5. Installation and operation.
1. Before installing, check up on all components of the fan, such as whether the components are complete, the joint of the components is firm, the components of the main shaft bearing is zero damage, the transmission group is agile. Repair immediately when there’s any fault.
2. When installing, pay attention to not drop any tools or sundries in the fan. To avoid of rusting and difficulty in dismantle, cover the joint with some grease or machine oil. The joint between the fan and the ground and the joint between the air entry and outlet should be adjusted carefully to match naturally, avoid forced connection and putting the weight of the pipeline upon the fan components. Keep the horizontal of the fan, the nonconcentricity of the coupling transmission between the fan’s main shaft and the motor shaft ,the nonparallelism between the two sides of the coupler should both be less than 0.08mm. After installing, rotate the transmission group to se if there’s deadlock or scratches, repair immediately if exists.
3. In order not to let the motor work overload, starting and testing of the fan should be done at no-load status,that’s to say, shuting down the valve of the air entry pipeline. If there’s nothing wrong, adjust the governing valve till normal full load working. The newly installed fan should run for at least 2 hours (the repaired fan should test for at least half an hour) before regular working.
6. Maintenance
1. Regular clean the inside of the fan especially the vanes.
2. Lubricating oil in the bearing box should be renewed every about 6 months besides repairing.
3. Regular check up on the temperature of the bearing,the rise should be less than 60°C.
4. Stop the fan immediately for repairing when there’s abnormal noises,vibrations and smells.
5. Repairing should be done after turning off the power.
7. Faults and Analyses
1. Fan vibrating violently
1.1 the enclosure or the air entry scratches with the impeller.
1.2 the base of the fan is not firm or inflexible.
1.3 impeller rivet loose or reel deformation
1.4 impeller reel loose with the shaft
1.5 bolts of the joint between enclosure and the support bearing block loose.
1.6 air pipelines installation fault
1.7 vanes dirty and rotor fault
1.8 vanes wear and impeller deformation.
2. Bearing temperature rise too high
2.1 bearing block vibrating violently
2.2 lubricating oil poor quality or spoil
2.3 bearing block cover link bolt over or under tightness
2.4 shaft and the rolling bearing decentraction.
3. Motor current excess or temperature rise too high
3.1 air valves unlocked
3.2 flow over rated value or pipeline airleak
3.3 air density over regular or temperature too low result in pressure too high.
3.4 main shaft rotation speed over rated value.
3.5 motor voltage too low or power outage
3.6 bearing block violent vibration
8. Transportation and Packaging
During transportation, when hoisting or loading, avoid tumbling,crashing and inversion. When hoisting the fan, tie the ropes to the steel frame at the bottom of the base. When transporting, fasten the fan for fear of accident.
Long time no use, the fan should be stored properly. Facilities for rain,insolation and hydrops are needed when open air keeping. Facilities for ventilating, moistureproofing and dustproofing are needed when interior keeping.
About our company
Henan Hengmu Machinery Co., Ltd. is located in the south of Yuntai Mountain, a beautiful world geology park. Ourcompany is engaged in producing powder feed unit , pellet feed unit, premix feed unit , compound fertilizer processing machines and complete biomass energy machines. Our company is professional engaged in the research and development, production, sale and service of machinery.
Certification
Welcome to our factory!
Contact Us
- Henan Hengmu Machinery Co., Ltd.
- Contact nameJack Zhao
- Phone86-0391-7715555
- AddressSouth Side Of Shihe Road, Industrial Agglomerations Zone, Xiuwu County
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