Nitrogen oxide collecting device for cement production

Abstract

The invention relates to the technical field of cement production equipment, and provides a nitrogen oxide collection device for cement production, which comprises a collection tube shell, a sheath, a filter cartridge sampling tube, an air blowing pump and an air suction pump, one end of the collecting pipe shell is used for being communicated with a C1 opening of the flue, and the axis of the collecting pipe shell and the axis of the flue are arranged at an acute angle; the sheath is arranged in the collection tube shell; one end of the sheath is rotationally connected with the other end of the collection tube shell, and the other end of the sheath extends into the flue towards one side close to the flue; a plurality of filtering holes are formed in the other end of the sheath, blades are arranged on the outer side wall of the sheath, and the blades are arranged close to the other end of the sheath; the filter cartridge sampling pipe is arranged in the sheath and is communicated with the sheath; the air outlet end of the air blowing pump is communicated with the filter cartridge sampling pipe; the air inlet end of the air suction pump is communicated with the filter cartridge sampling pipe, and the air outlet end of the air suction pump is connected with a nitrogen oxide detector; the phenomenon that the filter cartridge sampling pipe is blocked by dust is reduced, and the service life of the filter cartridge sampling pipe is prolonged.

Description

technical field [0001] The invention relates to the technical field of cement production equipment, in particular to a nitrogen oxide collection device for cement production. Background technique [0002] In the process of cement production, a cement plant will generate certain pollutants, including particulate matter, sulfur dioxide, nitrogen oxides and ammonia, etc. The content of pollutants needs to be detected in real time to meet the emission standards of pollutants. [0003] The dust concentration at the C1 port of the cement plant is high, and the gas flow rate is fast. When the nitrogen oxides at the C1 port of the cement plant are detected, the existing nitrogen oxide collection device is easily blocked by dust or particulate matter, which affects the At the same time, the high-speed airflow will have a certain impact on the nitrogen oxide collection device, which is easy to cause damage to the nitrogen oxide collection device. SUMMARY OF THE INVENTION [0004] T...

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