Adjustable hot-blast stove

Abstract

The invention discloses an adjustable hot-blast stove which comprises a stove body, a heat exchange core, a combustion-supporting fan and a high pressure fan; a combustion-supporting air pipe with combustion-supporting air outlets is arranged in a stove bottom; a first air passage and a second air passage are arranged in a stove body; a third air passage and a fourth air passage are arranged outside the stove body; primary heat exchange and secondary heat exchange are performed to generate low-temperature hot air and an intermediate-temperate hot air; the heat exchange core is subjected to quaternary heat exchange to generate high-temperature hot air; a fifth air passage is arranged in a stove top; heat exchange is performed by smoke waste heat; and an intermediate-temperature hot air outlet and a low-temperature hot air outlet are formed synchronously, and an intermediate-temperate hot air valve and a low-temperature hot air valve which are linked and opposite in opening / closing stateare separately mounted. The hot-blast stove with coal as a fuel is controlled, the low-temperature hot air, the intermediate-temperate hot air and the high-temperature hot air are generated by different heat exchange passages and ways, and the switching and heat supplying of the low-temperature and high-temperature hot air and the intermediate-temperate and high-temperature hot air can be realized, so that different temperature conditions required in tea leaf water-removing, carding and drying are met.

Description

technical field [0001] The invention relates to the field of tea production and processing equipment, in particular to an adjustable hot blast stove. Background technique [0002] In the field of tea production, there are many types of domestic famous and high-quality tea automatic production line equipment. The heating mode of each unit of the traditional tea production line equipment is independent, and different air temperatures are configured according to the requirements of the tea production process for greening, stripping, and drying. The temperature control error of the hot blast stove of each unit is large, and the operation is inconvenient, and the common hot blast stove has a large volume and high energy consumption, which largely causes waste of workshop space and heat energy. Although the traditional automatic tea production line solves the connection of various tea-making processes, reduces labor costs, and improves production efficiency, it does not substantia...

AI Technical Summary

Problems solved by technology

[0005] However, the above-mentioned related measures are realized based on the pipeline that transports heat. Since the pipeline itself has a certain amount of heat loss in the process of transporting heat, it is necessary to install a regulating valve at the far end or at the near end to adjust the heat in the pipeline. The flow rate of the airflow requires a large workload, and the adjustment accuracy is difficult to effectively control. In addition, the excess hot airflow needs to be pumped away, resulting in a waste of resources

Images