Hollow paddle dryer-Sinonine

What is a hollow paddle dryer for sale？

Hollow paddle dryer is an indirect low temperature heating dryer used to dry sludge, pigment etc.It consists of a W-shaped shell with a jacket end face, an upper cover, two hollow shafts with blades, end covers at both ends, a rotating joint with a medium, a metal hose, and a transmission mechanism including gears and sprockets.

The product can indirectly heat or cool paste, granule, powder and slurry materials, and can complete the unit operation of drying,cooling, heating, sterilizing, reacting, low temperature combustion and so on. The special wedge-type stirring heat transfer slurry blade in the equipment has high heat transfer efficiency and self-cleaning function of heat transfer surface.

Working principle of hollow paddle dryer

Densely lined with wedge-shaped hollow shaft hollow blades, heat medium through the hollow axial flow through blades. Uniteffective volume of a very large area of heat transfer, heat medium temperature from -40 ℃ to 320 ℃, can be water vapor, may also be liquid-type: such as water, oil and so on. Indirect conduction heating, the air does not carry away the heat, the heat are used to heat materials. Only through the device body heat loss to the environment, heat insulation layer. Wedge-shaped blades with self-cleaning heat transfer surfaces. Wedge-shaped surface material particles and scrubbing effect relative movement, to wash away the wedge surface material attachments. so in operation have maintained a clean heat transfer surfaces. Blade dryer for the W-type shell, the shell of the general arrangements for 2- hollow stirring shaft. Shell with a sealed cover with the cover to prevent dust leakage and collection of materials, solvent vapor materials Set out and exit pull a block, to ensure a high degree of material level, so that heat transfer surface is covered with fully materials.Heat medium through the rotary joint, passing through the shell jacket and the hollow stirring shaft, hollow shaft stirring according to the type of therma media have different internal structures to ensure the best heat transfer.

hollow paddle dryer flowsheet.jpg

Features of hollow paddle dryer

1.Blade dryer energy consumption is low: as indirect heating, the air does not carry away a lot of heat insulation of dryer wall has, on the slurry material. evaporation of 1kg of water vapor only 1.22kg of steam.

2.Blade dryer system costs low: within the effective volume of units have a large heat transfer surface, the reduced processing time, equipment size becomes smaller. Would greatly reduce the building area and building space.

3.Dealing with a wide range of materials: using a different hot medium, able to deal with heat-sensitive materials can be heat-treated materials handling. Commonly used media are: water, steam, oil, hot water, cooling water.Continuous operation can also be intermittent operation can be applied in many fields.

4.Environmental pollution，do not carry air, dust entrainment few materials. Solvent eveporation of material is very small, easy to handle. To have contaminated materials or be recycled solvent conditions, can be used closed circuit.

5.Low operating cost: the equipment normal operation,1-2 persons/day. Low speed and reasonable structure.Wear a small, very low maintenance costs.

6.Operation stability: As the wedge-shaped blades of special compression - expansion of stirring, so that material particles sufficient surface contact with the heat transfer in the axial zone, the material temperature,humidity, mixed density gradient is very small, thus ensuring the process stability.

Specification of hollow paddle dryer

Model	heat transfer area(m²)	number of axles	motor power(kw)	spindle speed(r/min)	Dimension(mm)
KJG-4	4	2	3~3.5	1.5~15	3300x800x800
KJG-6	6	2	4~75	1.5~15	3500x900x1200
KJG-8	8	2	5.5~11	1.5~15	3900x900x1200
KJG-10	10	2	7.5~11	1.5~15	4000x1250x1450
KJG-15	15	2	7.5~11	1.5~15	5200x1400x1720
KJG-20	20	2	11~15	0.5~10	5500x1700x1800
KJG-25	25	2	15~22	0.5~10	6000x1700x1900
KJG-30	30	2	15~30	0.5~10	6000x2000x200
KJG-40	40	2	22~35	0.5~10	6500x2000x2000
KJG-60	60	2	35~55	0.5~10	8150x2150x2400
KJG-70	70	2	35~75	0.5~10	8400x2500x2600
KJG-80	80	2	35~75	0.5~10	9000x2500x2600
KJG-100	100	2	55~75	0.5~10	9300x3000x2700
KJG-120	120	4	70~110	0.5~10	8150x4000x2400
KJG-160	160	4	70~150	0.5~10	9000x4500x2500
KJG-200	200	4	110~150	0.5~10	9300x5500x2700
KJG-240	240	5	140~220	0.5~10	9300x5850x2700
KJG-250	250	6	150~225	0.5~10	9300x6500x2700
KJG-300	300	6	165~225	0.5~10	9300x8000x2700