Heat generator for grain dryers, Khmelnytskyi region.

Heat generators for grain dryers, which are intended for burning organic fuel, grain waste, baled straw and supplying a thermal agent of stable temperature tograin any type of dryer. The OTD bioheat generator is the latest bioenergy development of the company, which allows obtaining a high-quality product with the maximum economy of energy resources and rational use of the environment. Straw, wood and other dry organic waste are much cheaper than fossil fuels and have a high calorific value.

The OTD bioheat generator consists of a furnace, a closed-type heat exchanger, a warm air channel, a system of smoke extractors, and a control cabinet.

The combustion system is combined: classic combustion and pyrolysis. The furnace can operate in the classic combustion mode: the smoke pump draws atmospheric air (primary) through the grates, the crown of the furnace and the layer of biofuel, and then the flue gases through the heat exchanger. If you open the shutter in the nozzle, then pyrolysis combustion begins: gasification and partial combustion of fuel occurs in the furnace, and pyrolysis gases are burnt in the nozzle with the help of heated (secondary) air coming through the shutter and air jacket. Of course, the classic mode should be used for ignition, then pyrolysis.

The heat exchanger can be cleaned mechanically (with a special brush and scraper included in the furnace delivery kit), by washing with water.
The body parts of the furnace are made of sheet steel 3 with a thickness of 6 mm. Inside, they are lined with fire-resistant brick, which absorbs the entire temperature load. Insulation (mineral wool) is laid between the brick and the walls. The heat exchanger is made of 08Х18Н9 steel - corrosion-resistant stainless heat-resistant steel.

The biofuel heat generator uses the following types of fuel:

- wood pellets, etc.;

- fuel pellet;

- briquette, etc.;

- wood chips;

-firewood;
(//tractor-service.com)
-baled straw, shredded;

- dry organic waste from grain and oil processing.

Name OTD240 OTD330 OTD500 OTD600 OTD1000 OTD1500 OTD2000 OTD2500 OTD3000
Heat capacity, kW
Energy consumption per 1 t / %: pellets - 2.6 kg, wood chips - 3 kg, straw - 4–5 kg.

240 330 500 600 1000 1500 2000 2500 3000
Outlet air temperature, ºС up to 120 to 120 to 120 to 120 to 120 to 120 to 120 to 120 to 120
Productivity of heated air, m³/h; not less than 11000 15000 20000 27000 30000 45000 60000 80000 95000
Diameter of heated air duct, mm 1150 1150 1150 1150 1150 1150 1150 1150 1150
Exhaust fan capacity, m³/h 1000 2000 3000 4000 6000 9000 12000 15000 17000
Exhaust fan power, kW 1 2 3 4 7.5 11 11 15 18.5
Furnace drive power, kW without rotation without rotation without rotation without rotation without rotation 0.37 0.37 0.37 0.37
Fuel consumption kg/h (with a calorific value of 16.8 MJ/kg) 65 90 120 160 270 400 540 670 800
Mass kg 1900 2400 2900 2900 6400 8300 9700 10200 11000
length, mm 3600 3900 6300 6500 7100 8400 9200 9600 9700
width, mm 1700 1700 1700 2700 2700 2900 3300 3300 3300
height without smoke extractor 2000 2200 2400 2800 2800 3000 3000 3000.
Website of the manufacturer: dulmz.com
If you have any questions, call us.