Shaft grain dryers, Model VESTA


Shaft-type grain dryer, model VESTA has perfectly approved itself in work with all types of cereals, beans and oil-bearing crops.

Strictly set heating & cooling regimes and use of calculated air volume allow maintaining the perfect drying technology. The polymeric lining of the bearing elements protects grain from stress & crash.

Delicate drying regimes allow using VESTA grain dryers for seed grain preparation.

High cost efficiency is achieved due to the dryer’s unique construction design, that allows using heating energy and the sections’ working volume to the highest possible efficiency. This grain dryer can operate on natural gas, condensed gas & diesel fuel. These dryers have high efficiency factor which may be increased by additional thermal insulation.



Design features

Design features  
Fans Fans productivity ensures the necessary air volume for removing the set moisture content percent.
Burner Burning mode is maintained mechanically. The temperature in heating and cooling areas is set from the control panel with accuracy up to 1°C.
Air ducts Tapered section excludes formation of stagnation zones and improves the dryer fire safety.
Control panel The panel is provided with a pictogram and built-in protection functions; ensures manual and automated operation.
Pneumatic separator with a spreading mechanism Cleans grain of light impurities and evenly distributes it throughout the shaft, excluding the product self-sorting and increasing grain drying efficiency.

Constructional Design

All grain cleaning and drying facilities are designed as individual solutions with account of the farming enterprise production specialization and size, as well as its development potential. The possible componentry variants are presented as a demonstrative three-dimensional model. This form of presentation permits to estimate the degree of the project compliance with the specification requirements.

Operation

Long service life of Melinvest’s equipment is ensured by wear-resistant materials and high-quality metal processing at up-to-date Italian and Japanese equipment. The service life of the primary structural elements makes up 15 years and more. Low vibration and noise level, complete line automation provide the personnel with comfortable working conditions. 1 or 2 operators can manage the facility maintenance.

High-quality dust aspiration guarantees fire and explosive safety

Grain dryers are supplied assembled in modules. It allows decreasing the erection and commissioning time.

Technical characteristics

Parameter

VESTA 5 VESTA 10 VESTA 15 VESTA 20 VESTA 30 VESTA 40 VESTA 50

Throughput, t/h

wheat, moisture removal from 20% to 14,5% (19% to 15%)

5
{6,3}
10
{12,5}
15
{19}
20
{25}
30
{38,0}
40
{50,5}
50
{63,0}

Throughput, t/h

Maize, moisture removal from 25% to 15%

2,5 5,0 6.5 9.0 13.0 17.0 22.0

Throughput, t/h

Sunflower, moisture removal from 13% to 9%

2,3 4,7 7,0 9,5 14,0 19,0 23,0

Throughput, t/h

Rape, moisture removal from 13% to 9%

2,0 4,0 6,0 8,0 12,0 16,0 20,0
Capacity, m3 15,7 23,2 30,8 42,2 59,0 68,7 78,3

Power max., 
(w/o bucket elevators), kW

12 20,2 28,1 36,3 39,15 48,0 60,15

Heat power of the gas-fired air heater, kW

440 814 1163 1512 2326 3024 4580

Heat power of the liquid-fuel air heater, kW

450 830 1186 1540 2372 3080 4886
Air consumption 25000 50000 75000 100000 100000 125000 150000
Fuel:

Diesel fuel / natural gas

+ + + + + + +
Fuel consumption tone/%, 
- natural gas, m3

- diesel fuel, kg

 

1,1

1

 

1,1

1

 

1,1

1

 

1,1

1

 

1,1

1

 

1,1

1

 

1,1

1

Processed crops: (feeding grain, bread-grain, seed grain) 
wheat, rye, barley, soya, peas, buckwheat, maize, oats, millet, rape, sunflower

Overall dimensions heat generator is not included

- Height (w/o bucket elevators), mm

- Length (depth), mm

- Width, mm

 

8500

5350

3400

 

10600

5350

3400

 

12800

5350

3400

 

16050

5350

3400

 

17600

6500

5700

 

19800

6500

5700

 

22000

6500

5700

Mass, kg

7000

8000 9000 10500 10350 11650 12950

 

Throughput is calculated based on bioclean grain with bulk weight 750 g/l at environment temperature +20°С and air humidity up to 70%, with account of cooling zone.

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