Pneumatic Conveying Systems Rotary Feeders / Rotary Feeders

• Customization: Available
• Capacity(t/h): 150-300
• Feeder Type: Mechanical Feeder
• Model NO.: RD125A
• Feeding Accuracy: �0.2mm
• Feeding Speed: Low Speed
• Motor Power(kw): 10~20
• Usage: Building Materials, Chemical Industry, Mine
• Color: Can Be Customized According to Customer Requiremen
• Goods Specifications: Special Requirements Can Be Customized According T
• Quantities: Merchandise
• Wrap: The Package Is in Good Condition.
• Transport Package: Stander Packing
• Specification: RD125A
• Trademark: LONGCHENG
• Origin: Shandong

Product Description

Product Description

rotary feeder
 

Principle of operation and main features
Rotary feeder is also known as rotary valve, star feeder, and air lock. The usual rotary feeder structure (as shown in the figure) is a rotor with several blades rotating in the circular and simple shell. The materials falling from the upper hopper are stuffed in the space between the blades and discharged with the rotation of the blades to the lower part.
The high-pressure gas brought by the impeller rotation can be sucked away from the mouth, reducing the phenomenon of gas topping, which is conducive to the smooth fall of the material.
For the pneumatic conveying system of pressure and suction, the rotary feeder is one of the main components, which can supply material uniformly and continuously to the conveying tube, and in the separation and dust collection part of the system, it has the function of air lock and discharge.

Main features
As feeders, rotary feeders are used in a wide range of applications. It is used for discharging materials and dust in the lower part of the separator and dust collector in the suction-fed pneumatic conveying system; it is used for feeding materials at the beginning of the conveying end in the pressure-fed pneumatic conveying system. The reliability of our company's rotary valve comes from nearly thirty years of experience and professional development, with the most reasonable structure and high quality material manufacturing, can effectively transport powder and granular materials with the following characteristics:
1.Simple structure, easy to use and maintain
2.Compact structure, small external dimensions, small installation space
3.Easily changeable feeding volume by adjusting the speed
4.The discharge volume changes very little as the material changes and the amount of material stored in the upper separator, etc.
5.Airtightness with a certain number of layers
6.Virtually no breakage of conveyed materials
7.The material can be transported when the temperature is less than 500ºC
8.Highly padded, patented anti-seize, abrasion-resistant, specific models for safe pneumatic movement under load
   Usually, it is applied to powder and small lumps with good flowability and less abrasiveness.

Selection instructions
1.Use
2.Place of use
3.Hourly material supply (kg/h)
4.Characteristics and temperature of the material
5.Name of conveying gas and pressure difference between upper and lower flanges of feeder
6.Painting color (standard color of the company's products if not specified)
7.Reducer and motor brand requirements
8.Accessories: acceleration chamber, pumping chamber, shaft air sealing

Rotary feeder construction diagram and material
1.RD and RDS type feeder structure and material

serial number	name (of a thing)		material (that sth is made of)	quantities
1	Bearing gland A		HT200	1
2	round nut		35	1
3	stop washer		Q235A	1
4	bear		bearing steel	2
5	Simmerring Oil Seal		fluoroelastomer	2
6	rotor section	axle	45	1
		rotors	Q235A	1
7	side panel		HT200	2
8	Seal Gland		HT200	2
9	Packing Seal		polytetrafluoroethylene	2
10	spacer		Q235A	2
11	seals		polytetrafluoroethylene	2
12	O-ring		fluoroelastomer	2
13	housings		HT200	1
14	Bearing gland B		HT200	1
15	linchpin		45	1

2.ARD type feeder construction diagram and material

serial number	name (of a thing)		material (that sth is made of)	quantities
1	Bearing gland A		HT200	1
2	round nut		35	1
3	stop washer		Q235A	1
4	bear		bearing steel	2
5	Simmerring Oil Seal		fluoroelastomer	2
6	housings		HT200	1
7	bushings		QT600	1
8	side panel		HT200	2
9	Seal Gland		HT200	2
10	Packing Seal		polytetrafluoroethylene	2
11	spacer		Q235A	2
12	seals		polytetrafluoroethylene	2
13	O-ring		fluoroelastomer	2
14	rotor section	axle	45	1
		rotors	Q235A+wear-resistant material	1
15	linchpin		45	1
16	Bearing gland B		HT200	1

3.Structure and material of high pressure type feeder

serial number	name (of a thing)	material (that sth is made of)	quantities
1	housings	HT250	1
2	rotor section	HT250+45	1
3	side panel 1	HT250	1
4	linchpin	45	1
5	side panel 2	HT250	1
6	Bearing gland	HT250	2
7	Elastic Retaining Ring for Shaft	45	1
8	bear	bearing steel	4
9	O-ring	fluoroelastomer	2
10	Packing Seal	polytetrafluoroethylene	2
11	Countersunk Bolt Sleeve	Q235	8
12	Sealing Gland	Q235	2
13	Elastic Retaining Ring for Hole	45	2
14	sprung	Q235	12
15	air inlet port
16	O-ring	fluoroelastomer	4
17	Sealing bushings	Q235	2
18	Piston bi-directional seals	polytetrafluoroethylene	4
19	O-ring	fluoroelastomer	2
20	bushing	Q235	2

 

1. Outline dimension drawing of feeder

Standard Vertical Feeder Dimensions

Structural characteristics
1.compact structure, small size, good sealing performance, low rotary leakage.
2. feeding capacity performance: volume efficiency changes with the speed is small, adapt to the speed range is wide.
3.pressure adaptability: volume efficiency changes little with the operating pressure, and ADAPTS to the working range from low pressure to medium pressure.
4. high speed, up to 60rpm, breaking through the world problem of high speed feed capacity decline, increase the feed capacity.
5.can use proprietary anti-card technology, even in the high-speed state of conveying granular materials, can also run smoothly, and the material breakage rate is reduced.


 Ordering Information

Material Characteristics
Material Name		proportion
particle diameter	( ) microns    ( ) mesh       ( ) mm        Other ( )
Material Shape	() Powdered () Granular () Cylindrical () Mixed powder and granules       () Flaky   () Others
Nature of material	True density () t/m³   Stacked density () t/m³    Angle of repose () Angle of collapse ()
material temperature	()ºC	moisture content	()%
Material Fluidity	( ) Liquid  ( ) Fairly liquid  ( ) Illiquid   Other ( )
Material Characteristics	( ) Adhesive ( ) Abrasive ( ) Friable ( ) Flammable ( ) Corrosive PH ( ) Volatile  ( ) Heat Sensitive  ( ) Toxic  ( ) Static  ( ) Hygroscopic ( ) Explosive  ( ) Agglomerative  ( ) Individual products available   Other ( )
Conveying requirements
conveying capacity	() T/h   () m³/h   () T/times
Conveying distance	Horizontal: ( ) meters    Vertical ( ) meters
Number of elbows	Approximately ( )   ( ) depending on the site
Conveying method	( ) Gap  ( ) Continuous ( ) Rotational switching ( ) Multipoint simultaneous feeding     Other ( )
Measurement requirements	( ) No metering  ( ) Starting device metering  ( ) End device metering Weight measurement ( )   Metering accuracy ( )
Weighing requirements	() Static weighing  () Dynamic weighing  () Connection with PLC
Conveying type	()Selection of Designer ()Positive Pressure Dilute Phase ()positive pressure dense phase (physics)  ()negative pressure dilute phase (physics)
Starting and ending conditions
Materialrunning point	Starting point ( ) m   Height of the flange of the feeder's lower opening from the ground ( ) m
Feeder	() Silo () Dryer () Mixer () Crusher () Vibrating Screen () Labeled Bag () Ton Bag     Others ( )
Material receiving point	End point ( ) pcs   Effective space at the top end of the flange of the receiving unit's feed pocket ( ) meters
Receiver	() Silos () Reactors () Mixers () Vibrating screens () Dryers () Packers Others ()
precipitator	() sets   Filtered area ()  Space limitations: () no () yes
site conditions
Air supply conditions	( ) No ( ) Yes   Pressure: ( ) MPa Flow rate ( ) m³/min    Other ( )
Power conditions	Voltage: ( ) V  Current frequency: ( ) Hz  Other ( )
Electrical Requirements	( ) Conventional  ( ) Dust explosion-proof  ( ) Gas explosion-proof  ( ) Explosion-proof  Explosion-proof class ( )
Plant Space	Length ( ) m  Width ( ) m  Height ( ) m  ( ) Arbitrary arrangement  ( ) According to the scope of the drawings
Operation mode	() Fully automatic () Semi-automatic () Manual () DCS operation
(sth. or sb) else
special specification