Air Energy Double Screw Reliable Blade Paddle High Viscosity Processing Dryer Drying Machine

• Customization: Available
• After-sales Service: 1 Year
• Warranty: 1 Year
• Material Status: Powder, Cream, Bulk
• Heat Source: Steam
• Transport Package: Wood, Container
• Specification: Customized
• Trademark: Zhongwanfang Energy Tech
• Origin: China
• HS Code: 84193990
• Production Capacity: 1000PCS/Year

Product Description

Paddle dryer

1. Core features
Conduction heating principle
Through hollow paddle (jacket + shaft) dual-channel heat transfer oil/steam heating, the thermal efficiency can reach 80%-90%
High viscosity processing
Special wedge-shaped paddle design, maximum processing viscosity up to 500,000 cP (such as petroleum sludge)
Self-cleaning function
The gap between the rotating paddle and the shell is ≤0.5mm to prevent material adhesion
Low oxygen environment
The closed structure can achieve nitrogen protection, and the solvent concentration is controlled to be <50%LEL
2. Key technical parameters
Evaporation intensity: 8-12kg water/m2·h (normal pressure type)
Final moisture content: 0.5%-15% (adjustable)
Working temperature: 80-320℃ (depending on the heat transfer medium)
Energy consumption index: 2800-3500kJ for evaporating 1kg of water

Specification

	Paddle dryer	Spray dryer
Applicable materials	Paste/viscous materials (viscosity > 10,000 cP)	Solution/suspension (solid content <60%)
Processing capacity	0.5-30 tons/day (wet basis)	100kg-100 tons/day (evaporation water volume)
Heat source cost	Low (thermal oil recycling)	High (direct electric heating consumes more energy)
Occupancy area	Compact (horizontal structure)	Requires high-altitude plant (tower height 8-25 meters)
Maintenance cost	Paddle blades need to be replaced regularly (2-3 years)	Frequent maintenance of atomizer precision parts
Typical industries	Chemical/Environmental/Minerals	Food/pharmaceuticals/new materials
Investment cost	$500,000-3 million (medium-sized equipment)	$2-20 million (large scale difference)

Product Description

Spray dryer

1. Core features
Atomization technology
Centrifugal (15000-25000rpm), pressure (20-40MPa), airflow (compressed air assisted)
Instant drying
The surface area of the droplets increases ten thousand times, and the water evaporation rate reaches 100kg/h·m2
Morphology control
The finished particle size is adjusted by atomization parameters (D50 range 10-300μm)
Thermosensitive protection
When the inlet air temperature is 200℃, the actual heating temperature of the material is only 60-80℃ (actual measurement in milk powder production)
2. Key technical parameters
Evaporation capacity: 5-5000kg water/h (industrial model)
Thermal efficiency: 50-70% (with waste heat recovery system)
Final moisture content: 0.5%-5% (free water is basically removed)
Energy consumption index: 4000-5500kJ for evaporating 1kg of water (conventional model)
3. Functional advantages
Controllable shape
Can produce special shapes such as hollow spheres (ceramic microbeads) and porous structures (instant coffee)
Aseptic processing
CIP/SIP system to meet the GMP requirements of the pharmaceutical industry (such as antibiotic drying)
High degree of automation
Integrated online particle size analyzer (such as Malvern real-time monitoring), automatic adjustment of atomization parameters
4. Application scenarios
Dairy products: whole milk powder production, air inlet temperature 180-200℃, maintain milk protein activity
New materials: nano zirconium oxide preparation, control particle agglomeration, specific surface area > 50m2/g
Pharmaceuticals: probiotic microcapsule embedding, survival rate > 90% (low temperature spray drying technology)
Environmental protection: zero discharge of desulfurized wastewater, treatment of high-salt wastewater (TDS > 20%)

Our Advantages

Functional advantages

Outstanding energy saving
Energy saving of more than 40% compared with traditional fluidized bed drying (measured data from a chemical plant)
Continuous operation
Can process continuously for 24 hours (a case of sludge drying project in a sewage treatment plant)
Explosion-proof certification
ATEX standard design, suitable for solvent-containing materials (such as acetone recovery in the pharmaceutical industry)
Application scenarios
Hazardous waste treatment: oily sludge (water content 80%→15%), with condensation recovery system to achieve oil recycling
Chemical industry: polyacrylamide (PAM) drying, final moisture ≤10%, avoid high temperature decomposition
Food processing: yeast paste drying (temperature precisely controlled at 60±2℃), retaining active ingredients
Mineral processing: bentonite drying, processing capacity of 5 tons/hour, heat source using direct gas combustion

Industry pain point solutions

1. Paddle dryer
Agglomeration problem: adopt reverse screw propeller design (application case of a titanium dioxide factory, agglomeration rate reduced by 80%)
Thermosensitive materials: segmented temperature control (high temperature dehydration in the front section, low temperature drying in the back section), used for enzyme preparation production
Corrosive materials: spray tungsten carbide (hardness HV1200) on the surface of the paddle, life extended by 3 times
2. Spray dryer
Stick problem: set air sweep device on the tower wall
Uneven particle size: multi-stage cyclone separation + bag dust removal
High solid content: pressure nozzle + mechanical supercharger system

Selection suggestions
Preferentially choose paddle dryer: processing viscous materials, solvent recovery, site-limited scenarios
(such as: petrochemical industry sludge treatment, pharmaceutical industry high viscosity extract drying)
Preferentially choose spray dryer: require good product fluidity, need to control particle morphology, heat-sensitive materials
(such as: functional milk powder production, nanomaterial preparation, instant beverage processing)

Company Profile

Packing & Delivery

Certifications

FAQ

1.  Are you a factory or trading company?
We are a factory
 
2.  How long is the warranty period?
One year
 
3. What's the main market of your company?
We have customers all over the world
 
4.What's your delivery time?
Normally it is around 30 days, the exact time depends on product type and quantity.
 
5. What's the payment terms?
TT, etc
 
6. Can we visit your factory?
Welcome to visit our factory!
 
7. Where is your factory? How can we go there?
Our factory locates at Jiaozhou city, Shandong Province, who is very near the airport, you can take the plane to Qingdao Jiaodong International Airport and we will go to airport to pick up you.