Working principle
The furnace integrates combustion and heat transfer into a new type of indirect heating technology that performs heat exchange at the high temperature part of the furnace body. Smoke and air are used in various ways. The heating is environmentally friendly, and the thermal efficiency is high (up to 60-75%). The temperature rise is fast and the volume is small. Convenient, reliable, and inexpensive.

Performance characteristics
High temperature resistance measures have been adopted to extend the service life of the tube-type hot blast stoves, and the flue gas longitudinal erosion fins and the negative pressure exhaust method have been adopted. The heat exchange parts do not accumulate dust and do not need to be cleaned, and the thermal performance is stable. All kinds of coal or diesel can be used as fuel, and equipped with secondary air inlet device to burn completely. The technical and economic indicators of the furnace have reached the leading domestic level.

Adapt to the material
The furnace is a general-purpose hot air device and it is used together with the drying equipment for various materials. Widely used in food, seed, feed, fruit, dehydrated vegetables, Xiangru, fungus, Tremella, tea, tobacco and other agricultural products, food, pharmaceuticals, chemical raw materials, light and heavy industrial products, heating and dehumidification, can also be used for heating of various facilities And warehouse dehumidification and so on.

Technical specifications

Notice
◎ The environmental reference temperature standard is 18°C±2°C, and the calorific value of coal is calculated at 5000Kcal/kg.
◎In the table, the hot air temperature is determined according to the output air volume. Hot air heater JRF4 type hot air temperature can be up to 200 °C or more, JRF5 JRF6 type hot air temperature can be up to 300 °C or more (special manufacturing up to 500 °C or more), users need to adjust.
◎ The height of the stove window of the hot blast stove is 3 to 5 meters for the JRF4 type and 5 to 8 meters for the JRF and JRF6 types.
◎ The corresponding position of the outside dimensions in the table is shown in the hot air furnace installation diagram.
◎ The refractory layer on the inner wall of the lower part of the furnace starts from the hearth. Its height: JRF4-type is 0.5 meters and can be installed on site.
◎JRF6 is a chain grate type combustion device.

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