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Hand-fired Hot Blast Stove

Total amount of burnt coal: 60 to 360 kg
Applications: it is applied to production industries such as metallurgy, drying, chemistry, building materials, refractory materials and fertilizer.
Materials: non-caked and weak bonding bitumite and anthracite;
Product introduction: hot air furnace is a kind of heat exchange equipment which regards air as working media. It is divided into two kinds, indirect and direct one. 

Sales Hotline:

0086-18539990967

Technical introduction

Hand-fire type hot air furnace
hot air furnace is a kind of heat exchange equipment which regards air as working media. It is divided into two kinds, indirect and direct one. According to the furnace structure, hot air furnace can be divided into hand-fire type, chain type and nozzle type. According to fuels used, it can be divided into biomass fuel hot air furnace, coal hot air furnace, gas hot air furnace and oil hot air furnace. 

Advantages

1. Simple structure, save, quick and easy to operate;
2. Can use a wide range of fuels such as biomass, lignite and bitumite;
3. Adopt special fire bar; casting type furnace body and optimization type furnace structure can guarantee long service span of hot air furnace;
4. Reasonable air distribution and inlet and outlet air design; full combustion; high thermal efficiency which can reach 10%;
5. Furnace body and heat exchanger are installed separately, which provides convenience for transportation and maintenance;
6. The thermal efficiency of direct hot air furnace is 15% to 20% higher than that of indirect hot air furnace;
Applications of hand-fire type hot air furnace: 
Feed: dregs, barley straw feed, pellet feed, dicalcium phosphate etc. 
Building materials: ceramic fiber, insulation board, thermal insulation cotton, ultra-fine powder, desulfurization gypsum, quartz sand, etc. 
Environmental protection type: paper making black liquor (lignin), sludge drying, phosphorus gypsum, waste liquid treatment, solid waste, etc. 
Food and drug categories: food, dried fruits, vegetables, medicines, etc
Water purification agent: polymeric aluminum chloride, sulfuric acid, etc. 
Other: wood, mining smelting processing, rubber powder, acetylene bottle, plastic mold etc. 

Working principle

In direct hot air furnace, hot flue gas will mix with cold air according to a certain proportion. After subsiding and dedusting, hot air which holds certain temperature, pressure and velocity will be sent to various dryers to realize drying and heating process. There is no heat exchange and heat transmission process in direct hot air furnace. Hot flue gas will directly heat dry materials. Thermal efficiency is very high.
In indirect hot air furnace, cold air will be sent to heat exchanger from inlet of heat exchanger by blower after adding pressure. Energy power is finished by convection conduction between hot flue gas and inner pipe wall. Then,  hot air which holds certain temperature, pressure and velocity will be sent to various dryers to realize drying and heating process. High-temperature flue gas in heat exchanger tube is produced by lower furnace body. After passing by heat exchanger, flue gas will be discharged from the chimney of induced draft fan of flue duct to fullfill the heat exchanging process. 

Technical parameters

Technical parameters of horizontal hand-fire type hot air furnace
名称(型号)
Names (model )
LRF-10万大卡
10000
Kilocalorie 
LRF-20万大卡
10000
Kilocalorie 
LRF-30万大卡
10000
Kilocalorie
LRF-40万大卡
10000
Kilocalorie
LRF-60万大卡
10000
Kilocalorie
LRF-80万大卡
10000
Kilocalorie
LRF-100万大卡
10000 Kilocalorie
LRF-120万大卡
10000 kilocalorie
热效率(%)
Thermal efficiency
≥73
热风出口温度(°C)
Temperature of hot air outlet
80-300
供热量(mw)
Heat supplied
0.12 0.23 0.35 0.47 0.7 1.0 1.2 1.4
风量(Nm³/h)
Air volume
3017-1688 3222-2148 5750-3130 6445-4296 8440-5330 21484-21890 31055-21484
耗煤量(kg/h)
Coal consumed
24 40-50 50-60 70-80 100-110 130-140 190-200 240-250
耗电功率(kw)
Power
5.5 7 9.5 14.5 22 30 45 52
适用煤种
Coal available
Ⅱ类烟煤
II kind bitumite
外形尺寸(mm)
Overal dimension
1220×2250 1450×2800 1650×3500 1750×3500 1950×4350 2200×5000 2400×5500 2600×5800
参考重量(T)
Reference weight
1.3 1.6 2.3 3.8 4.2 5.5 9.8 12
 
 
 
 
 
 

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Sales hotline:0086-18539990967

Address of headquarters:NO. 198, longding industrial zone, high-tech development zone, zhengzhou city, china

Email:vip@tdaxy.com

Zhengzhou Taida Group    Address:NO. 198,longding industrial zone,high-tech development zone,zhengzhou city,china    Sitemap