SNCR (selective non-catalytic reduction) ultralow-emission denitration device for rotary cement kiln

• Main Authors: ZHANG NING, ZHANG JIANGPING, ZHANG MINGLIANG, GAO WEISHAN
• Format: Patent
• Language: Chinese; English
• Published: 25.04.2023
• Subjects: BLASTING; DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE; FURNACES; HEATING; KILNS; LIGHTING; MECHANICAL ENGINEERING; OVENS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; RETORTS; SEPARATION; TRANSPORTING; WEAPONS

The invention discloses a rotary cement kiln SNCR (selective non-catalytic reduction) ultralow-emission denitration device, which relates to the technical field of denitration engineering and comprises a rotary kiln, a denitration liquid supply system, a denitration gas supply system, a two-channel rotary joint, a pipeline system, a denitration spray gun group and a cooling system. The denitration gas supply system is used for providing compressed air, the denitration liquid supply system and the denitration gas supply system are respectively communicated with two inlets of the two-channel rotating joint through connecting pipelines, and two outlets of the two-channel rotating joint are communicated with the denitration spray gun group through the pipeline system; alkali liquor and compressed air are conveyed into the denitration spray gun set at the same time to be mixed and atomized and then sprayed out, a reducing agent can be located in the optimal reaction temperature interval, the spraying range of the