Adjustable rotary kiln heat collection system and heat energy collection method

Abstract

The invention discloses an adjustable rotary kiln heat collection system and a heat energy collection method. The adjustable rotary kiln heat collection system is composed of an upper heat collection cover, a lower heat collection cover, an adjustable lead screw, a cold air inlet, an arc-shaped sealing plate, a rotating hinged support, a hot air outlet, a diameter adjustable lead screw, a vertical support, a rotary kiln, a heat exchange channel, an annular baffle, a barrel-shaped temperature measuring and scanning device, a high-temperature fan and a pipeline. The space of the heat exchange channel and the cold air inlet volume are changed by adjusting the barrel-shaped heat collection cover, the temperature of hot air in the heat exchange channel is made to reach a set standard value, and hot air is pumped into the pipeline through the high-temperature fan from the hot air outlet. Dispersed heat can be fully recycled, the space of the heat exchange channel and the cold air inlet volume are changed by adjusting the barrel-shaped heat collection covers, and the temperature of hot air in the heat exchange channel is made to reach the set standard value, so that the requirement for drying or heating other materials is met, combustor devices for heating other materials are omitted, and investment cost is reduced.

Description

technical field [0001] The invention relates to the technical field of heat collection on the outer surface of a large-scale rotary kiln, in particular to an adjustable rotary kiln for recovering heat from the outer surface of a rotary kiln in the production of cement clinker, a rotary kiln in the production of alumina, and a rotary kiln in the ceramic particle production industry. Kiln heat collection system and heat energy collection method. Background technique [0002] At present, in the process production line produced by heating with large-scale rotary kiln, the temperature of the outer surface of the rotary kiln is relatively high, and the temperature can be as high as about 300°C. Most of the heat on the outer surface of the rotary kiln is not recycled and is lost to the atmosphere. . For the kiln body exposed to the atmosphere, it not only increases the fuel consumption during combustion, but also increases the production cost; at the same time, the outer surface o...

AI Technical Summary

Problems solved by technology

[0002] At present, in the process production line produced by heating with large-scale rotary kiln, the temperature of the outer surface of the rotary kiln is relatively high, and the temperature can be as high as about 300°C. Most of the heat on the outer surface of the rotary kiln is not recycled and is lost to the atmosphere.

For the kiln body exposed to the atmosphere, it not only increases the fuel consumption during combustion, but also increases the production cost; at the same time, the outer surface of the high-temperature rotary kiln exposed to the atmosphere, under the erosion of rainwater, accelerates the corrosion of the kiln body and affects the kiln. body life

[0003] The kiln body heat collecting device of some existing production lines is an open type through water circulation, which can only collect heat on one side of the kiln body, and the water cooling cycle efficiency is low, and the heat exchange is poor, which affects the cooling effect of the kiln body surface. The surface temperature of the kiln body is too high, which affects normal production and operation. At the same time, the gap between the kiln body and the kiln body cannot be adjusted according to the needs. The collected water is not only at the bottom temperature, but also cannot adjust the water temperature. The heat recovery effect is poor, and the popularization and application are limited.

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