Oxygenation combustion supporting rotating kiln

Abstract

The invention discloses an oxygenation combustion supporting rotating kiln. The oxygenation combustion supporting rotating kiln is characterized by comprising a rotating kiln body, a draught fan and acombustion supporting mechanism; the draught fan is connected to the rotating kiln body through an air pipe; the position, close to the rotating kiln body, on the air pipe is provided with an oxygencontent monitor; the combustion supporting mechanism comprises an oxygen connect-in pipe, a pressure adjusting valve, an oxygen tank, a pneumatic pressure adjusting valve and an oxygen distributor; the oxygen connect-in pipe is connected to one side of the oxygen tank through the pressure adjusting value, and the other side of the oxygen tank is connected to the oxygen distributor through the pneumatic pressure adjusting valve; and the oxygen distributor is installed in the air pipe. The oxygenation combustion supporting rotating kiln has the following beneficial effects that the incinerationyield is increased, the loss on ignition is lowered, it is guaranteed that waste gas emission reaches the standard, investment is small, effect taking is fast, and accidents are avoided.

Description

technical field [0001] The invention relates to the technical field of rotary kiln combustion, in particular to an oxygen-adding combustion-supporting rotary kiln. Background technique [0002] At present, in the process of incinerating hazardous waste in rotary kilns, it is common to fail to reach the designed production capacity. The main reason is that the feed moisture is too high, and there is waste liquid in it during the coordination, which is manifested in the kiln head during the incineration process. 1. The temperature at the kiln tail is low. The normal temperature is 850-900°C at the kiln head and 1050-1100°C at the kiln tail. Oxygen content is low (compared to the combustion material), there is not enough oxygen to support combustion, in order to ensure the output, the kiln speed should not be too slow, resulting in increased slag output, high heat loss rate, and difficult to treat wastewater And many other bad phenomena occur, and the drying is restricted by s...

AI Technical Summary

Problems solved by technology

[0002] At present, in the process of incinerating hazardous waste in rotary kilns, it is common to fail to reach the designed production capacity. The main reason is that the feed moisture is too high, and there is waste liquid in it during the coordination, which is manifested in the kiln head during the incineration process. 1. The temperature at the kiln tail is low. The normal temperature is 850-900°C at the kiln head and 1050-1100°C at the kiln tail. Oxygen content is low (compared to the combustion material), there is not enough oxygen to support combustion, in order to ensure the output, the kiln speed should not be too slow, resulting in increased slag output, high heat loss rate, and difficult wastewater treatment Many bad phenomena occur, and the drying is restricted by safety, environmental protection and other aspects.

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