SCR (Selective Catalytic Reduction) denitration ammonia injection grid device

• Main Authors: JANG MIN JI, SUN BIN
• Format: Patent
• Language: Chinese; English
• Published: 23.07.2024
• Subjects: PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The SCR denitration ammonia spraying grid device comprises an ammonia spraying collecting box, an input port of the ammonia spraying collecting box is connected with an ammonia gas source through a conveying pipe, a plurality of output ports which are evenly arranged in the length direction of the ammonia spraying collecting box at intervals are formed in the side wall of the ammonia spraying collecting box, and the output ports are connected with ammonia spraying branch pipes; the ammonia spraying branch pipe is sequentially provided with a first adjusting valve, a flow meter and ammonia spraying mechanisms, and the ammonia spraying mechanisms are arranged on the cross sections of different positions in the flue at intervals. The ammonia amount of each ammonia spraying branch pipe is adjusted through the first adjusting valve, so that the ammonia flow of the ammonia spraying mechanisms at different positions in the flue corresponds to the flue gas flow field at the positions, the optimal ammonia spraying amo