Injection device for injecting compressed air into boiler for denitration system

• Main Authors: NIE JIANYU, XU LIANG
• Format: Patent
• Language: Chinese; English
• Published: 07.12.2021
• Subjects: APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; ATOMISING APPARATUS; NOZZLES; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; SPRAYING APPARATUS; SPRAYING OR ATOMISING IN GENERAL; TRANSPORTING

The utility model relates to the technical field of flue gas denitration, and discloses an injection device for injecting compressed air into a boiler for a denitration system, which comprises a mixing pipe, and the top of the mixing pipe is fixedly connected with a urea inlet pipe. According to the spraying device for spraying the compressed air into the boiler for the denitration system, a rotating lead screw conveniently rotates in a transmission box through a rotating motor and a rotating bearing, a lifting shaft is connected to the outer portion of the rotating lead screw in a threaded mode, and a lifting clamping piece is fixedly connected to the lifting shaft through a lifting groove and an extending block; a lifting shaft can conveniently move up and down outside the lifting shaft through rotation of a rotating lead screw, so that an extension block is used for driving a lifting clamping piece to ascend and descend, an air inlet pipe and an air outlet pipe are clamped and fixed, the air inlet pipe and