High-temperature hot air device suitable for waste gas circulation heating of brick kiln

Abstract

The invention relates to the technical field of waste gas circulating heating devices, in particular to a high-temperature hot air device suitable for waste gas circulation heating of a brick kiln. The high-temperature hot air device comprises a hot air flow channel and a heater arranged in the hot air flow channel; the hot air flow channel comprises an air blower, an air inlet pipe, an outer cylinder body, an inner cylinder body and a rotating body, wherein the inner cylinder body is arranged in the outer cylinder body, an outer flow channel is formed between the outer cylinder body and the inner cylinder body, nozzles are evenly distributed on the top of the inner cylinder body, and the rotating body is arranged in the inner cylinder body. According to the high-temperature hot air devicesuitable for waste gas circulation heating of the brick kiln, the principle of fluid mechanics and aerodynamics is fully utilized, and an 80-degree inclined plane, a diffuser pipe heat flow channel,an impeller inner bottom plate flow mixing device, a four-leg supporting device and the like are adopted in the structure, so that not only is water contained in waste gas further removed, but also the waste gas is fully mixed in the heating area and keeps the long stagnation time, the waste gas is sufficiently heated, the heating efficiency is improved, and the energy consumption is reduced.

Description

technical field [0001] The invention relates to the technical field of waste gas circulation heating devices, more specifically, a high-temperature hot air device suitable for waste gas circulation heating of brick kilns. Background technique [0002] Coal heating methods commonly used in brick kilns, the frequency of coal addition, exhaust performance, heating uniformity, heating time and other factors affect each other in a complex manner. Even experienced technicians can hardly guarantee the brick production rate, and phenomena such as over-burning and under-burning often occur , At the same time, the energy consumption of the coal heating method is relatively large. my country has advocated energy saving and emission reduction in recent years, not only hoping to improve heating efficiency, but also requiring full use of brick kiln exhaust gas. [0003] At present, some brick kilns have begun to explore the method of using hot air to burn bricks, but either the equipment...

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Problems solved by technology

[0003] At present, some brick kilns have begun to explore the way of using hot air to burn bricks, but either the equipment is complicated, the investment cost is high, and the maintenance cost is high; or it is difficult to control the temperature and the brick production rate is low.

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