The Pakistan gypsum plant used a 400,000 kcal coal-fired hot blast stove, packed in small cabinets and sent it to Qingdao Port. A hot blast stove for gypsum production, comprising a combustion chamber, a preheating chamber and two or more heat exchange chambers. The flue gas outlet of the combustion chamber is connected with a flue gas channel 13 which passes through the heat exchange chamber in turn And the preheating chamber is connected with an exhaust gas treatment device, the preheating chamber is provided with an air inlet and an air outlet, and the heat exchange chamber has an air channel arranged around the flue gas channel 13, corresponding to the two adjacent heat exchange chambers The air passages are connected to each other, and the air outlet is connected with the air passage inlet, and the air passage corresponding to each heat exchange chamber is provided with a hot air outlet connected with the gypsum calcining or gypsum drying device.

Henan Taiguo hot blast stove adopts multi-head spiral groove heat exchange technology, which integrates combustion and heat exchange design, so that the product has a compact structure, reasonable layout, high heat exchange intensity, fast heating, and high thermal efficiency. It has the characteristics of small floor space, convenient installation and operation, clean hot air and stable performance. The hot blast stove uses indirect heat transfer technology and uses clean air as the heat transfer medium to provide an ideal direct heat source for heating processes in all walks of life. The heating temperature is divided into low temperature (80~150℃) and medium temperature (200~300). ℃), high temperature (400~550℃), three grades, customers can freely choose according to the requirements of the drying process. This product is widely used in the drying, spraying and dehydration of various materials such as chemicals, food, medicinal materials, tobacco, ceramics, and building materials. It can also be used for heating in buildings such as factory buildings, auditoriums, farm sheds, and livestock houses, as well as dehumidification or heating processes in underground mining areas and underground projects.