Energy-saving drying kiln using common wind pipe as combustion chamber

Abstract

The invention discloses an energy-saving drying kiln using a common wind pipe as a combustion chamber. The energy-saving drying kiln comprises a drying kiln body, a heat supply system, a combustion system, a wet sucking system and a transmission system; the drying kiln body comprises at least one standard module section; each standard module section forms an independent circular heating system; the circular heating system comprises a square wind pipe; the square wind pipe is provided with a kiln afterheat inlet, a cold wind distribution port, a combustor connecting pipe, a heat supply outlet and a wet discharge port; the kiln afterheat inlet is connected with a kiln afterheat pipe; the cold wind distribution port is connected with the cold wind pipe; the combustor connecting pipe is connected with the combustion system; the heat supply outlet is connected with the heat supply system; hot wind combusted by the combustion system is mixed with kiln afterheat and cold wind by the circular heating system, and then, is fed above and below adobes in the transmission system through the heat supply system for drying; and dried moisture is discharged into atmosphere by the wet sucking system. The energy-saving drying kiln can realize effective drying of adobes to achieve the supply and sucking balance, and is more obvious in energy saving effect.

Description

technical field [0001] The invention relates to the technical field of ceramic drying, in particular to an energy-saving drying kiln using a common air duct as a combustion chamber. Background technique [0002] In the ceramic industry, when drying ceramic bodies, evaporation of water requires the absorption of a large amount of heat energy. If the kiln flue gas is used directly, the sulfur, dust and other substances in the kiln flue gas will cause damage to the environment and equipment; if only the waste heat of the kiln is used for cooling, the heat will be insufficient, so the burner is generally used to supplement the heat to reach the temperature required for drying. [0003] Due to the high temperature after the mixed combustion of fuel and air, traditional drying kilns generally use refractory and insulating bricks to build hot blast furnaces as combustion chambers, and then, the high-temperature flue gas after combustion is combined with a large amount of cold air ...

AI Technical Summary

Problems solved by technology

However, there are many problems in this method. For example, the hot blast furnace has a large volume, complex structure, and large heat dissipation area. The cooling of the hot air during the long-distance transportation process often results in high energy consumption, and it is difficult to control the temperature in different areas, etc.

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