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  • JRF Series Coal Burnt Hot Air Furnace

JRF Series Coal Burnt Hot Air Furnace

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Category: Assistant machine
PrincipleThe furnace combines the combustion with the heat exchange(if it is indirect-burnt type ), using the latest indirect heating technology that the heat exchange is taken place at the position of the high temperature in the furnace.…
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JRF Series Coal Burnt Hot Air Furnace

Principle
The furnace combines the combustion with the heat exchange(if it is indirect-burnt type ), using the latest indirect heating technology that the heat exchange is taken place at the position of the high temperature in the furnace. The smoke and the air go into the different channels, without any pollution for the heating. The heat efficiency rate is high (up to 60 - 75%). The temperature increase is fast. The furnace is small in size, easy in the installation, reliable in the operation and low in the price (making a comparison with one ton boiler, the price of this system is only half price of the heating system for the boiler.).


Applications
The furnace is a common heating air device , it is equiped  with different drying equipment .for this furnace , it can combine the burning with heat exchanging together . The heat exchange is taken place at the position of the high temperature in the furnace.The furnace is widely used for various dryers as heating system in chemical ,foodstuff, pharmaceutical and so on indurstry


Features
The furnace uses the high temperature resistant method so that its life is much longer than the life of the pipe arrangement hot air furnace. The furnace uses the smoke and air longitudinal splashing heat radiation sheets and the negative pressure smoke elimination mode. There is no dust collected on the heat exchange position. There is no need to carry out the cleaning. The heat feature is stable. Various coal and wood can be used as the fuel. The furnace is equipped with the air leading device and the combustion is complete. All the technical and economic indexes of the furnace have reached the advanced level at home.


Installation drawing


Technical parameters

name\spec

JRF-15

JRF-20

JRF-30

JRF-40

JRF-60

JRF-80

JRF-100

diametral of interior barrel

760

760

1170

1170

1470

1670

1870

diametral of exterior barrel

1280

1280

1840

1840

2200

2460

2700

total height

3500

3500

4260

4760

4810

5110

5310

total weight of equipment

3.15T

3.65T

6.8T

7.5T

9.8T

11.7T

13.5T

diameter of hot air outlet opening

300

300

500

500

500

600

600

height of hot air outlet opening

1585

1585

1670

1670

1670

1770

1770

diameter of flue outlet opening

250

250

250

250

250

300

320

height of flue outlet opening

2050

2050

2220

2220

2220

2385

2385

specification of angle head

XZD/G φ578

XZD/G φ810

coal consumption per hour

43kg

57kg

85kg

115kg

170kg

230kg

286kg

combustion value of coal

5000kcal/h

heat efficiency

70-75%

75-80%

suction fan of flue

Y5-47-3.15C-1.5KW

Y5-48-4C-2.2KW

Y5-48-4C-3KW

Y5-47-4C-3KW

Y5-47-4C-4KW

Y5-47-5C-7.5KW

Cautions
◆  The environmental datum temperature standard takes 18±2.C. The thermal value for the coal takes 5000kcal/kg for the calculation.
◆  The hot air temperature in the table is decided according to the air output. The maximum hot air temperature for JRF4 spec hot air furnace can be up to more than 200.C. The maximum hot air temperature for JRF5 and JRF6 specs can be up to more than 300.C (for the special manufacturing furnace, the maximum temperature can be up to more than 500.C.). The temperature can be adjusted according  to the demand.
◆  Hot air furnace chimney height: for JRF4 spec, it is 3 - 5 m; and for JRF5 and JRF6 specs, they are 5 - 8 m.
◆  For the overall dimension corresponding positions in the above table, please see the diagram for installing the hot air furnace.
◆  The fire-resistant layer on the internal wall at the low section of the furnace hearth begins at the furnace wall. Its height: for JRF 4-4, it is 0.5m; The fire-resistant layer can be installed on site.
◆  JFR6 spec is the chain-furnace arrangement-spec combustion device.

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