Rotary airlock feeders/ rotary airlock valves are used in pneumatic conveying systems, dust control equipment, and as volumetric feed-controls.
Application wise feeder can be classified into two categories:
1) Rotary feeder and
2) Rotary airlock valve
Although the actual rotary feeder is the same in both cases, the efficiency of each application is different, making of the valve and the drive speed different.
The rotary valve controls the flow of (metering) material. There is no pressure differential across the feeder; however, a rotary feeder can be used under a head of material, if
a) It is located immediately below an Air slide bottom bin,
b) It is located below a small batch hopper having aeration pads,
c) If the head of material above the rotary feeder is held to a minimum by the use of a vented expansion hopper or
d) If located below a bag dump hopper where the head is limited.
Rotary feeder is used where the flow control of the material is required and pressure difference or vacuum differential is not essential.
The rotary airlock application operates with either a pressure or vacuum differential, but does not necessarily controls the flow of material. Rotary airlock valves are normally used either as a charging device for low-pressure pneumatic conveying systems, or as a suction lock for dust collectors.
It can be mounted below the bag filter, which can make the pressure difference between atmosphere & inside the bag filter, which in turn makes effective dust collection system. It can also be used in dilute phase and continuous dense phase.
Application wise feeder can be classified into two categories:
1) Rotary feeder and
2) Rotary airlock valve
Although the actual rotary feeder is the same in both cases, the efficiency of each application is different, making of the valve and the drive speed different.
The rotary valve controls the flow of (metering) material. There is no pressure differential across the feeder; however, a rotary feeder can be used under a head of material, if
a) It is located immediately below an Air slide bottom bin,
b) It is located below a small batch hopper having aeration pads,
c) If the head of material above the rotary feeder is held to a minimum by the use of a vented expansion hopper or
d) If located below a bag dump hopper where the head is limited.
Rotary feeder is used where the flow control of the material is required and pressure difference or vacuum differential is not essential.
The rotary airlock application operates with either a pressure or vacuum differential, but does not necessarily controls the flow of material. Rotary airlock valves are normally used either as a charging device for low-pressure pneumatic conveying systems, or as a suction lock for dust collectors.
It can be mounted below the bag filter, which can make the pressure difference between atmosphere & inside the bag filter, which in turn makes effective dust collection system. It can also be used in dilute phase and continuous dense phase.
Nice detailing about rotary valve, best of this blog is type of rotary valve. Good content you have shared with us.
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rotary airlock valves manufacturers
Nice Blog, Shree Techno Engineers is the top best manufacturer and supplier of Coal Handling System, Ash Handling System and Rotary Airlock Valve Manufacturer in India.
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