A:
All Dongding dryers come with a 12-month warranty covering parts and workmanship from the date of commissioning. Lifetime technical support and spare parts supply are provided.
Introduction of Yeast Dryer
The yeast dryer adopts an indirect heating mode, heating the rotating drum to evaporate the water from the yeast slurry adhering to its surface. It is especially suitable for the recycling of brewery yeast. The yeast dryer is also suitable for drying liquid raw materials or viscous materials in the chemical, dye, pharmaceutical, food, metallurgy, and other industries.
The core technology lies in temperature control, the yeast temperature must not exceed 80 ℃, which ensures the biological activity of the dried yeast. Many drying parameters of our yeast dryer can be adjusted, such as the concentration of the feed material, the thickness of the coating material film, the temperature of the heating medium, and the rotation speed of the drum, etc. The thermal efficiency can reach more than 80%.
Advantages of Yeast Dryer
01
Preserves Bioactivity
The design fully accounts for the thermal sensitivity of yeast, preserving its biological activity.
02
Premium Cast-Steel Drum
The drum in contact with yeast is made of high-standard cast steel, anti-corrosive and non-polluting.
03
Short Drying Time
A wet film of 0.5–1.5 mm forms on the drum wall and the whole cycle takes only 10–15 seconds, ideal for heat-sensitive materials.
04
Energy-Saving Conduction Heating
Conduction heating ensures minimal heat loss, high thermal efficiency and reduced energy consumption.
05
Compact & Easy to Maintain
Compact structure with a small footprint, simple operation and easy maintenance.
06
Wide Applications
Also suitable for drying sludge materials in the food, chemical, pharmaceutical and other industries.
Working Principle of Yeast Dryer
The drying degree of the yeast can be controlled by adjusting the pressure of the steam and the speed of the dryer.
Firstly, the yeast slurry to be dried is put into the preheating tank and preheated to about 50℃. Then, it is conveyed by a feed pump into the lower part of the dryer tank. The drying drum is then immersed to a depth of about 60-80mm, and its rotating outer surface is coated with a uniform layer of yeast. At the same time, hot steam (with a pressure of 0.15-0.3Mpa) is supplied through pipes to the internal wall of the drying drum. Thus, heat is transferred to the external wall and then to the yeast film, evaporating the moisture in the yeast film. After the yeast slurry has been dried, it is scraped off and lands at the outlet for collection. The drying degree of the yeast can be controlled by adjusting the steam pressure and the drum speed.
Specifications of Yeast Dryer
Model | DDJHG 1500×1500 | DDJHG 1500×2000 | DDJHG 1500×2500 | DDJHG 1500×3000 | DDJHG 1500×3500 | DDJHG 1500×4000 | DDJHG 1500×4500 | DDJHG 1500×5000 | DDJHG 1500×5500 | DDJHG 1500×6000 |
| Capacity（kg/h) | 400-650 | 550-850 | 700-1050 | 850-1250 | 1000-1500 | 1100-1700 | 1250-1900 | 1400-2100 | 1550-2350 | 1700-2550 |
| Drum Size（m） | Φ 1.5×1.5 | Φ 1.5×2.0 | Φ 1.5×2.5 | Φ 1.5×3.0 | Φ 1.5×3.5 | Φ 1.5×4.0 | Φ 1.5×4.5 | Φ 1.5×5.0 | Φ 1.5×5.5 | Φ 1.5×6.0 |
| Rotation Speed（r/min） | 4-8 | 4-8 | 4-8 | 4-8 | 4-8 | 4-8 | 4-8 | 4-8 | 4-8 | 4-8 |
| Steam Working Pressure（Mpa） | 0.4-0.8 | 0.4-0.8 | 0.4-0.8 | 0.4-0.8 | 0.4-0.8 | 0.4-0.8 | 0.4-0.8 | 0.4-0.8 | 0.4-0.8 | 0.4-0.8 |
| Steam Consumption（kg/h） | 105-135 | 135-165 | 165-190 | 190-225 | 225-300 | 355-450 | 355-450 | 450-550 | 550-650 | 650-750 |
| Total Power（kw） | 4.35 | 6.97 | 9.37 | 13.7 | 17.7 | 22 | 25 | 27.5 | 32.5 | 35.5 |
| Floor Area (㎡) | 3.5×5 | 4×4.5 | 4.5×5 | 4.5×6 | 5×6 | 6.5×7 | 6.5×7 | 7.5×9 | 8.5×10 | 10×11.5 |
Notice:
1. Any change of technical data shall not be advised additionally.
2. Parameters above are for reference; final configuration is tailored to your material and capacity.
Show of Yeast Dryer
Product Photos
Why Dongding
Learn More About Dongding® Service
Related Cases
1,100 TPD Fly Ash Drying Project
Input moistureFrom 28% to 2%
Output moisture≤ 5%
LocationMongolia
500 TPD Coal Slime Dryer Project
Input moistureFrom 35% to 10%
Output moisture≤ 10%
LocationInner Mongolia, China
300 TPD Sludge Drying Project
Input moistureFrom 80% to 15%
Output moisture≤ 15%
LocationVietnam
600 TPD Coal Slime Drying Line
Input moistureFrom 40% to 10%
Output moisture≤ 10%
LocationShanxi, China
300 TPD Bentonite Dryer Project
Input moistureFrom 25% to 8%
Output moisture≤ 8%
LocationIran
200 TPD Ore Powder Drying Project
Input moistureFrom 18% to 5%
Output moisture≤ 5%
LocationZambia
150 TPD Sludge Dewatering & Drying Project
Input moistureFrom 80% to 15
Output moisture≤ 15%
LocationJiangsu, China
1.05 TPH Yeast Drum Drying Line
Input moistureFrom 85% to 12%
Output moisture≤ 12%
LocationThailand
- 600+
- Projects Worldwide
With drying projects running across the globe, Dongding has earned long-term trust through reliable quality and responsive after-sales service.
Frequently Asked Questions
Common questions about our rotary dryers — pricing, customization, installation and after-sales.
A:
Please share your raw material, initial and target moisture content, required capacity (t/h), available fuel or heat source, and your target market. With these details our engineers can recommend the right model and send an accurate quotation.
A:
As a manufacturer, we accept orders starting from a single machine. We can also deliver complete drying production lines with auxiliary equipment such as hot air furnaces and dust collectors. Contact us for tailored pricing.
A:
Standard models are usually delivered within 25-40 days after the deposit. Customized machines or larger production lines may take longer depending on the configuration. The exact schedule is confirmed in your contract.
A:
Yes. Every dryer is engineered around your material, capacity, moisture and site layout. Heat source, material of construction, dust collection and automation level can all be customized to your process.
A:
Yes. We provide installation guidance, commissioning, operator training and lifetime after-sales support. Our engineers can also travel to your site, and all equipment comes with a warranty.
