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Heat source equipment

Classification

JRF series coal-fired hot air stove

Category: Heat source equipment

Introduction: Working principleThis furnace integrates combustion and heat exchange as a new type of indirect heating technology, which exchanges heat in high-temperature parts of the furnace body. Smoke and air flow in their respective ways, heating is environment…

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Working principle

This furnace integrates combustion and heat exchange as a new type of indirect heating technology, which exchanges heat in high-temperature parts of the furnace body. Smoke and air flow in their respective ways, heating is environmentally friendly, with high thermal efficiency (up to 60-75%), fast heating, small size, convenient installation, reliable use, and low price.

Performance characteristics

High temperature resistance measures have been taken, which greatly extends its lifespan compared to tubular hot air furnaces. The flue gas longitudinal flushing heat dissipation fins and negative pressure smoke exhaust methods have been adopted, and the heat exchange area does not accumulate dust and does not need to be cleaned, resulting in stable thermal performance. Various types of coal or firewood can be used as fuel and equipped with a secondary air intake device for complete combustion.

Adapt to materials

This furnace is a universal hot air device that is used in conjunction with various drying equipment for materials. Widely used for heating and dehumidifying agricultural products such as grains, seeds, feed, fruits, dehydrated vegetables, Xiangru, agaric, tremella, tea, tobacco, food, pharmaceuticals, chemical raw materials, and light and heavy industrial products. It can also be used for heating various facilities and dehumidifying warehouses.


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
Outer cylinder diameter 1280 1280 1840 1840 2200 2460 2700
Height 3500 3500 4260 4760 4810 5110 5310
Total equipment quantity 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
Flue gas outlet diameter 250 250 250 250 250 300 320
Smoke outlet height 2050 2050 2220 2220 2220 2385 2385
Model of ox horn elbow XZD/G Φ578 XZD/G Φ810
Hourly coal consumption 43kg 57kg 85kg 115kg 170kg 230kg 286kg
Combustion value of coal 5000kcal/h
thermal efficiency 70-78% 75-80%
Model of smoke exhaust fan 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 environmental reference temperature standard is 18 ℃± 2 ℃, and the calorific value of coal is calculated at 5000Kcal/kg.

The hot air temperature in the table is determined based on the output air volume. The hot air temperature of the JRF4 type hot air stove can reach over 200 ℃, while the JRF5 JRF6 type hot air temperature can reach over 300 ℃ (special manufacturing can reach over 500 ℃). Users can adjust according to their needs.

The height of the hot air stove smoke window configuration: 3-5 meters for JRF4 models, 5-8 meters for JRF and JRF6 models.

The corresponding positions of the external dimensions in the table are shown in the installation diagram of the hot air stove.

The refractory layer on the inner wall of the lower part of the furnace starts from the grate, and its height is 0.5 meters for JRF4-4 type, which can be installed on site.

The JRF6 type is a chain grate combustion device.


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