Jrf Coal Hot Air Furnace

• Certification: ISO, TUV
• Place Style: Vertical
• Range of Applications: Industrial
• Type: Crucible Melting Furnace
• Usage: Supporting Heat
• Fuel: Coal
• Model NO.: JRF
• Transport Package: Standard Wood Package
• Trademark: XINGGAN
• Origin: Changzhou, China
• HS Code: 8416201190

Product Description

INTRODUCTION
JRF coal hot air furnace is a furnace possessing two functions----coal firing and heat exchanging. It embraces the new technology of indirect heating featuring heat exchanging in the high-temperature part of the furnace. The heating process produces no pollution with the heat ratio hitting almost 60% to 75% because smoke and air are processed in separate channels. It enjoys rapid heating rate, small size, convenient installation, safe operation and low price (this equipment costs only a half of the price of boiler whose capacity is one ton).

FEATURES
The service life of this equipment is greatly prolonged because heat-proof measures have been taken. Heat sinks are vertically scoured by smoke and negative-pressure smoke evacuation is employed; hence, it enjoys stable thermal property and no need to clean because no dusts will be accumulated in heat-exchanging parts. It could be fed with all kinds of coal or firewood which will be burned abundantly because second blasting device is installed. Many technical-economic indicators achieve advanced levels in China.

APPLICATION
The general hot air equipment enjoys its compatible application with various drying equipment. It is well adopted in various fields like food, seed, fodder, fruit, dehydrated vegetables, shii-take, agaric, tremella, tea leaves and tobacco leaves. Its function of heating and dehumidification is well accepted in some industries like agricultural products, food, pharmaceuticals, chemical materials and products of light and heavy industry. Meanwhile, it can also be used to heat various devices and to dehumidify storerooms.

TECHNICAL PARAMETERS

Item / Model	JRF-15	JRF-20	JRF-30	JRF-40	JRF-60	JRF-80	JRF-100
Inner Cylinder Diameter	760	760	1170	1170	1470	1670	1870
Outer Cylinder Diameter	1280	1280	1840	1840	2200	2460	2700
Total Height (mm)	3500	3500	4260	4760	4810	5110	5310
Total Weight (T)	3.15T	3.65T	6.8T	7.5T	9.8T	11.7T	13.5T
Diameter of Hot-blast Outlet (mm)	300	300	500	500	500	600	600
Height of Hot-blast Outlet (mm)	1585	1585	1670	1670	1670	1770	1770
Diameter of Smoke Outlet (mm)	250	250	250	250	250	300	320
Height of Smoke Outlet (mm)	2050	2050	2220	2220	2220	2385	2385
Type of Vacuum Connecting Tube	XZD/G Φ578					XZD/G Φ810
Coal Consumption per hour	43kg	57kg	85kg	115kg	170kg	230kg	286kg
Combustion Value of Coal	5000kcal/h
Thermal Efficiency	70-78%					75-80%
Type of Smoke Evacuation Motor	Y5-47-3.15C -1.5KW	Y5-47-4C -2.2KW	Y5-47-4C -3KW		Y5-47-4C -4KW	Y5-47-5C -7.5KW	Y5-47-5C -7.5KW

Attention:
The calculation of reference ambient temperature should be based on 18ºC±2ºC and that of heat value of coal on 5000Kcal/kg.
Temperature of hot air in above table is based on the output of air. The highest temperature of hot air of the JRF4 Hot Air Furnace could hit 200ºC or even more and that of the JRF5 Hot Air Furnace and JRF6 Hot Air Furnace could hit 300ºC or even more (over 500ºC is also available on the basis of special construction). They could be adjusted according to the demands of users.
The standard height of smokestack equipped on the hot-blast stove: 3 to 5 meters on JRF4 and 5 to 8 meters on JRF5 and JRF6.
The boundary dimension shown in the stable could be found in the installation instruction.
Fire-proof cover in the inner wall of lower part of stove starts from the fire gate. Its height of JRF4-4 is 0.5 meter with field installation.
JRF6 enjoys its travelling grate stoker.