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ZLRF Series Hot Air Stove

  • Overview
  • Advantage
  • Parameter

Coal/biomass fired hot air furnace is a kind of energy saving heating equipment with simple structure, the heating principle is heat transfer. The temperature offered by the hot air furnace could reach about 300℃, has excellent drying effect. Hot air furnace could measure and display the temperature automatic, convenient for operation.


Air and flue gas flow separately for heat exchanging. Both of air and flue gas flow two passes, heat transfer area is large, high heat transfer rate, and save energy. In order to improve thermal efficiency, Sitong boiler adopts the multiple head helical groove plate heat exchanging technology and turbulent flow principle, decrease the thickness of laminar flow, to make the air and flow gas exchange heat constantly and revolve during flowing, thus, greatly strengthened the heat transfer efficiency.


Operation Process


Coal/biomass fuel burn in the furnace, the high temperature flue gas flow into gas channels, and exchange heat with air outside the channel, and then the flue gas flow through flue gas duct, and finally discharged into the atmosphere through chimney.

The cold air is blew into the shell of the stove by blower, and then enter the external air channel through furnace roof, after heat exchanging, the clean hot air is supplied to where needed through the air outlet tube.


Application


As the flue gas and air flow separately for heat exchanging, the heated air is clean. So, hot air furnace is widely used for drying the goods that not allowed to be polluted, such as milk powder, medicine, and synthetic resin, etc.

The coal/biomass fired hot air furnace are widely used for:

1. Rotary kiln

2. Drying for chemical and medicine products  

3. Textile and printing and dyeing industry  

4. Drying for molding industry  

5. Drying for wood in architectural material industry, gypsum board and firegalss products  

6. Baking for agricultural products, fodder and food processing  

7. Supply heating project industrial factory and civil buildings and henhouse, etc


Advantages


1. Clean heat energy

Flue gas and air flow separately for heat exchanging, the heated air is clean.

 

2. High thermal efficiency

Adopts the multiple head helical groove plate heat exchanging technology and turbulent flow principle, decrease the thickness of laminar flow, to make the air and flow gas exchange heat constantly and revolve during flowing, thus, greatly strengthened the heat transfer efficiency.

 

3. Wide adaptability of different fuels

The fuel could be coal, wood, straw, bagasse, rice husk, and other biomass fuels.

 

4. Automatic control

The stove could measure temperature and pressure automatically, convenient for operation.

 

5. Compact structure, small occupation

The stove has compact structure, it is vertical type, covers small area.

 

6. Environmental protection

The stove could equipped with dust remover, reduce the dust emission concentration, meet the requirement of environmental protection.


Parameter


Name Rated Power (MW) Hot Air Outlet Temperature (℃) Thermal Efficiency (%) Coal Consumption (kg/h) Overall Dimension Diameter×Height (mm) Reference Weight (t)
ZLRF-10 0.12 200-300 70 27 1220×2450 1.3
ZLRF-30 0.35 200-300 70 85 1750×3500 2.3
ZLRF-60 0.7 200-300 75 162 1850×4350 4.2
ZLRF-80 0.93 200-300 75 211 2100×6395 5.2
ZLRF-100 1.17 200-300 75 260 2340×6400 6.4
ZLRF-120 1.4 200-300 75 320 2500×6800 8
Note: Parameter is for reference only, we can design the boilers based on customers’ needs.


1. Clean heat energy

Flue gas and air flow separately for heat exchanging, the heated air is clean.

 

2. High thermal efficiency

Adopts the multiple head helical groove plate heat exchanging technology and turbulent flow principle, decrease the thickness of laminar flow, to make the air and flow gas exchange heat constantly and revolve during flowing, thus, greatly strengthened the heat transfer efficiency.

 

3. Wide adaptability of different fuels

The fuel could be coal, wood, straw, bagasse, rice husk, and other biomass fuels.

 

4. Automatic control

The stove could measure temperature and pressure automatically, convenient for operation.

 

5. Compact structure, small occupation

The stove has compact structure, it is vertical type, covers small area.

 

6. Environmental protection

The stove could equipped with dust remover, reduce the dust emission concentration, meet the requirement of environmental protection.


Name Rated Power (MW) Hot Air Outlet Temperature (℃) Thermal Efficiency (%) Coal Consumption (kg/h) Overall Dimension Diameter×Height (mm) Reference Weight (t)
ZLRF-10 0.12 200-300 70 27 1220×2450 1.3
ZLRF-30 0.35 200-300 70 85 1750×3500 2.3
ZLRF-60 0.7 200-300 75 162 1850×4350 4.2
ZLRF-80 0.93 200-300 75 211 2100×6395 5.2
ZLRF-100 1.17 200-300 75 260 2340×6400 6.4
ZLRF-120 1.4 200-300 75 320 2500×6800 8
Note: Parameter is for reference only, we can design the boilers based on customers’ needs.

Transaction Process

PRE-SALE SERVICE

1) 24 hours customer service hot line, we will offer you professional technical data, suggestion, and purchase guidance.

2) Welcome to visit our factory, we could offer you free airport pick up service, and help you book hotel, tickets, or plan route, etc.


ON-SALE SERVICE

Our professional engineering team will customize the boiler based on your requirement. Also, we could help arrange the boiler room and offer appropriate energy utilization plan, to maximum boiler users’ profit. Sitong Boiler cooperates with experienced transportation agency, to ensure the products arrive to destination intactly. We have overseas installation team for door to door installation, debugging, and periodic maintenance.

Process

customer inquiry -- professional consulting service, customize boiler based on requirement -- place order and pay deposit -- boiler manufacturing -- pay balance -- delivery -- installation, debugging and periodic maintenance


AFTER-SALE SERVICE

1) Offer lifelong door - to - door after sale service and quarterly visiting. We have professional overseas engineering team and overseas agencies, to solve users’ problems during boiler operation

2) 24 months warranty period, if boiler body or accessories are damaged under proper operation, Sitong boiler will maintenance or replace the damaged accessories for free (except spare parts).

3) 24 hours service hot-line, offer proper solutions to solve the problems happened during operation.

Inquiry

info@stongboiler.com

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