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 Brewery Spent Grain Dryer
Brewer's spent grain (BSG) or vinasse is a by-product from brewery process. It contains a large amount of nutrients. After being processed, the dried vinasse/distiller's grains serve as good materials for animal feed.
Our spent grain drying system is as follows: If the moisture of the wet spent grain is higher than 75%-80%, a screw dehydrator is first used to reduce it to 62-65%, which can reduce the burden of the dryer. Then the spent grain goes into the drying process, where the final moisture of the spent grain can reach 12-15%.
Besides, we can offer the packing machine after the drying and crushing stages. We have packing machines for 25 kg/bag and 50 kg/bag, which can be adjusted according to customers' needs. We can also offer the full pellet plant, by adding some auxiliary materials, makes it into high-quality animal feed pellet.
Advantages of Brewery Spent Grain Dryer
01
Compact Footprint
Floor space is reduced by about 50% and investment by about 40% compared with a single-drum rotary dryer.
02
High Thermal Efficiency
Thermal efficiency reaches 70%, double that of a traditional single rotary dryer.
03
Anti-Sticking & Anti-Scorching
A special breaking and lifting device inside the dryer effectively prevents material from sticking to the wall and scorching.
04
Environmental Protection
A dust-removal device completely avoids dust pollution and meets environmental protection requirements.
05
Precise Moisture Control
Material flow speed is controlled by frequency conversion, so the final moisture is easily controlled to meet your needs.
06
Multiple Heating Source
The heat source can be coal, gas, oil, biomass particles, steam, etc.
Working Principle of Brewery Spent Grain Dryer
System
The brewer’s spent grain (BSG) dryer consists of a heat source, feeding system, rotary drum, discharging system, draft fan, dust collector, and control cabinet.
Drying Process: Wet BSG → Mixing → Preliminary Dewatering → Drying → Crushing → Packaging.
1. Feeding: Wet spent grains enter the dryer.
2. Lifting and Dispersion: Lifting plates continuously lift and scatter the material inside the drum.
3. Hot Air Contact: Hot air passes through the dispersed material, providing efficient heat transfer.
4. Drying: Moisture evaporates as the material absorbs heat.
5. Discharging and Dust Removal: Dried BSG is discharged and collected, while exhaust gas is treated by a dust removal system before release.
Specifications of Brewery Spent Grain Dryer
| Device Specification | DDJG1210 | DDJG1410 | DDJG1610 | DDJG2010/3 | DDJG2210/3 | DDJG2510/3 | DDJG2512/3 | DDJG2912/3 |
| Daily Processing Capacity(t/d) | 33.6 | 40.8 | 58.9 | 131.4 | 145.0 | 167.7 | 204.0 | 247.0 |
| Daily Output(t/d) | 15.6 | 19.2 | 27.7 | 61.8 | 68.2 | 78.9 | 96.0 | 116.2 |
| Water Evaporation Capacity (t/h) | 0.75 | 0.90 | 1.30 | 2.90 | 3.20 | 3.70 | 4.50 | 5.45 |
| Raw Material Water Content(%) | 60-80 | 60-80 | 60-80 | 60-80 | 60-80 | 60-80 | 60-80 | 60-80 |
| Dried Material Water Content(%) | 12-15（adjustable） | 12-15（adjustable） | 12-15（adjustable） | 12-15（adjustable） | 12-15（adjustable） | 12-15（adjustable） | 12-15（adjustable） | 12-15（adjustable） |
| Drying Temperature(℃) | 350-550 | 350-550 | 350-550 | 350-550 | 350-550 | 350-550 | 350-550 | 350-550 |
| Total Weight(kg) | 32 | 40 | 55 | 95 | 100 | 125 | 145 | 165 |
| Plant Area(㎡) | 15000 | 17000 | 21500 | 26500 | 28500 | 370000 | 41000 | 45500 |
| Device Specification(m) | 5*14 | 5*14 | 6*16 | 8*16 | 8*16 | 10*16 | 10*18 | 10*20 |
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.
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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.
