Heating device for input smoke of SCR method denitration system

Abstract

The invention discloses a heating device for input smoke of an SCR method denitration system. The heating device comprises a heat accumulation chamber and a control system thereof. An inner cavity is formed in the heat accumulation chamber, the upper end of the heat accumulation chamber is opened, and the lower end of the heat accumulation chamber communicates with a smoke channel. A lifting type frame is arranged on the upper side of the heat accumulation chamber. A plurality of gas nozzles are fixed to the lifting type frame. The gas nozzles are connected with a main air conveying pipe through branch air conveying pipes. Natural gas sensors are arranged at the butt-joint portions of the gas nozzles and the branch air conveying pipes, and the main air conveying pipe is provided with an adjusting valve. An automatic ignition device is arranged at the upper end of the inner cavity of the heat accumulation chamber, and a temperature sensor is arranged at the lower end of the inner cavity of the heat accumulation chamber. The control system achieves automatic ignition control over the gas nozzles, the output hot air temperature of the heat accumulation chamber is monitored in real time, whether natural gas leaks or not is monitored, and accordingly running of the adjusting valve is controlled. The heating device is safe and reliable, operation is convenient, automatic control over the temperature and heat of smoke conveyed to the SCR method denitration system through a glass kiln is achieved, and the denitration efficiency of the SCR method denitration system is effectively improved.

Description

technical field [0001] The invention relates to a heating device, in particular to a heating device for flue gas input to an SCR denitrification system. Background technique [0002] At present, the high-temperature flue gas output from the glass furnace is usually used in the SCR denitrification system, and plays the role of the waste heat boiler, and is widely used to provide heat energy to other systems. However, in practical application, it is found that due to the insufficient temperature and heat of the flue gas output from the glass kiln, it is difficult to play the role of the waste heat boiler. When the conditions are low, the efficiency of the denitrification reaction is seriously affected, resulting in a large amount of nitrogen oxides and ammonia overflow, which not only causes huge waste, increases the cost of the denitrification reaction, but also causes great harm to the environment. Contents of the invention [0003] The purpose of the present invention is...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the temperature and heat of the flue gas transported from the glass kiln to the SCR denitrification system cannot meet the requirements, it is difficult to play the role of the waste heat boiler, and seriously affect the denitrification reaction efficiency. Heating device for flue gas input in SCR denitrification system

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