Dividing wall rotary kiln device for flue gas dehydration

Abstract

The invention relates to a dividing wall rotary kiln device for flue gas dehydration. The dividing wall rotary kiln device comprises loading equipment, a charging bin, a conveyor, a rotary kiln, waste heat generating equipment and a spare unloading bin, wherein the rotary kiln is a dividing wall rotary kiln, and is composed of an outer ring and an inner ring which are coaxially mounted; a ring-shaped material channel is arranged between the inner ring and the outer ring; the ring-shaped material channel is provided with refractory material support; and a furnace hearth is arranged in the center of the inner ring. The furnace hearth is connected with the waste heat generating equipment by a kiln tail cover. The loading equipment is communicated with the ring-shaped material channel by the loading bin, the conveyor and a charging ring; the ring-shaped material channel is connected with the spare unloading bin by a discharge ring. A wet flue gas inlet is connected with a flue gas pipeline; a gas outlet is divided into two paths, one path is connected with a dry flue gas exhaustion system, and the other path is connected with a condenser; and connecting pipelines are provided with valves respectively. According to the dividing wall rotary kiln device, lime is used as a dryer, and the ring-shaped material channel of the dividing wall rotary kiln is used for drying and dehydrating the industrial flue gas, so that the flue gas diffusion capacity is improved in a facilitated mode, the acid rain and atmospheric contamination is reduced, and the dwelling and living environment of people is improved.

Description

technical field [0001] The invention belongs to the technical field of waste gas treatment and environmental protection, and relates to a partition wall rotary kiln device for flue gas dehydration. Background technique [0002] Industrial flue gas, especially flue gas from waste incineration power plants, often has a high water content, generally 25 to 30%, and white smoke is easy to form in winter, causing local acid rain around the exhaust gas, polluting the atmosphere, and endangering human and animal health. Health, corrodes surrounding buildings and large facilities. In order to avoid local acid rain, it is necessary to dry the flue gas to remove the moisture in the flue gas, and then discharge it to improve the diffusion capacity of the flue gas. In addition, the dirty gas produced by coking devices such as coke ovens is sent to the tar extraction device for treatment. Because the gas contains moisture, harmful water is produced during the treatment process, thus caus...

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Problems solved by technology

Although this patent application can limitly avoid local acid rain around industrial boilers or industrial furnaces, it has limited ability to deal with a large amount of industrial flue gas

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