Hot blast stove

Abstract

The invention provides a hot blast stove. The hot blast stove comprises a shell, a combustion system, a heat exchange system and a smoke exhaust and dust removal system. The combustion system comprises a first combustion cavity and a second combustion cavity which are limited in the shell, the first combustion cavity is communicated with the second combustion cavity, a fuel bin for limiting a fuel cavity is arranged in the first combustion cavity, and sieve holes and a discharge port which are communicated with the first combustion cavity and the fuel cavity are formed in the wall surface of the fuel bin; the heat exchange system comprises a heat exchange cavity limited in the shell, and the heat exchange cavity is located at the periphery of at least one of the first combustion cavity and the second combustion cavity; and the smoke exhaust and dust removal system comprises a smoke exhaust and dust removal cavity limited by the shell, and the smoke exhaust and dust removal cavity communicates with the second combustion cavity. According to the hot blast stove, the problem that combustion is incomplete and insufficient is solved, smoke dust generated by incineration is filtered through the smoke exhaust and dust removal system, and the effects of protecting the environment and reducing pollutant emission are achieved.

Description

technical field [0001] The invention relates to the technical field of combustion equipment, in particular to a hot blast stove. Background technique [0002] The hot blast stove is mainly composed of furnace base, furnace body, heat exchanger, centrifugal fan, conveying air duct and other components, forming two mutually unconnected cavities, which are separated and placed. Air is used as the flow medium between the cavities to generate heat exchange. If real-time monitoring of furnace pressure and combustion status is required, an automatic monitoring and control system is required. Based on the division of fuel and heat source, there are mainly four types of hot blast stoves: coal, oil, gas and biomass fuel. Based on the heating method, there are mainly two types: direct and indirect. [0003] The feature of the direct heating hot blast stove is that after the fuel is fully burned, the flue gas is directly heated and dried without passing through the heat exchanger. Th...

AI Technical Summary

Problems solved by technology

[0018] The invention provides a hot blast stove, which is used to solve the defects of a large amount of smoke and dust generated by straw burning and insufficient burning in the prior art. It not only solves the problem of incomplete and insufficient burning, but also filters the smoke generated by burning through a smoke exhaust and dust removal system to achieve environmental protection. , the role of reducing pollutant emissions

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