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JRF series coal-fired hot blast stove

Introduction: working principleThe furnace integrates combustion and heat exchange. The new indirect heating technology uses high temperature parts of the furnace body to exchange heat. Smoke and air go in different ways. The heating is environmentally friendly, wi…

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working principle
  The furnace integrates combustion and heat exchange. The new indirect heating technology uses high temperature parts of the furnace body to exchange heat. Smoke and air go in different ways. The heating is environmentally friendly, with high thermal efficiency (up to 60-75%), fast heating, small size, and installation. Convenient, reliable to use, and low price.
Performance characteristics
  Adopt high temperature resistance measures, so that its service life is much longer than that of tube-type hot blast stove, and adopt the flue gas longitudinal scouring fin and negative pressure smoke exhaust method, the heat exchange part does not accumulate dust, does not need to be cleaned, and the thermal performance is stable. All kinds of coal or firewood can be used as fuel, and it is equipped with a secondary air inlet device to burn completely.
Adapt to materials
  The furnace is a universal hot air device, which is used in conjunction with drying equipment for various materials. It is widely used for heating and dehumidifying food, seeds, feed, fruits, dehydrated vegetables, fragrant ruins, fungus, white fungus, tea, tobacco and other agricultural products, food, pharmaceuticals, chemical raw materials, and light and heavy industrial products. It can also be used for heating in various facilities As well as dehumidification of the warehouse, etc.
Technical specifications

Name\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
Diameter of outer cylinder 1280 1280 1840 1840 2200 2460 2700
Total height 3500 3500 4260 4760 4810 5110 5310
Total equipment 3.15T 3.65T 6.8T 7.5T 9.8T 11.7T 13.5T
Hot air outlet diameter 300 300 500 500 500 600 600
Hot air outlet height 1585 1585 1670 1670 1670 1770 1770
Diameter of flue gas outlet 250 250 250 250 250 300 320
Flue gas outlet height 2050 2050 2220 2220 2220 2385 2385
Horn elbow model XZD/G Φ578 XZD/G Φ810
Coal consumption per hour 43kg 57kg 85kg 115kg 170kg 230kg 286kg
Burning value of coal 5000kcal/h
Thermal efficiency 70-78% 75-80%
Smoke fan model 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
◎Environmental reference temperature standard is 18℃±2℃, and the calorific value of coal is calculated at 5000Kcal/k g.
◎The hot air temperature in the table is determined according to the output air volume. The hot blast temperature of the hot blast stove JRF4 can reach over 200℃, and the JRF5 JRF6 hot blast temperature can reach over 300℃ (for special manufacturing, it can reach over 500℃), and users can adjust it according to their needs.
◎The height of the smoke window of the hot blast stove: 3 to 5 meters for JRF4 type, 5 to 8 meters for JRF and JRF6 type.
◎The corresponding positions of the outline dimensions in the table are shown in the hot air stove installation diagram.
◎The refractory layer on the inner side wall of the lower part of the furnace starts from the grate, and its height: JRF4- 4 is 0.5 meters, which can be installed on site.
◎JRF6 type is a chain grate type combustion device.

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