Combustion furnace with air staged decoupling combustion mechanical grate and combustion method thereof

• Main Authors: BAI JIANKANG, GAO SHIQIU, HAO JIANGPING, LIU XINHUA, LI JINGHAI
• Format: Patent
• Language: Chinese; English
• Published: 07.09.2018
• Subjects: AIR SUPPLY; BLASTING; CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FORCOMBUSTION CHAMBERS, e.g. FIREBRIDGES; COMBUSTION APPARATUS; COMBUSTION PROCESSES; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDEDFOR; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS INCOMBUSTION CHAMBERS; DRAUGHT-INDUCING; HEATING; LIGHTING; MECHANICAL ENGINEERING; METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTIONAPPARATUS; SUPPLYING NON-COMBUSTIBLE LIQUID OR GAS; WEAPONS

The invention discloses a combustion furnace with an air staged decoupling combustion mechanical grate and a combustion method thereof, and belongs to the field of coal combustion equipment, which aims to solve the problems of high NOx discharge and the like of an existing device. The combustion furnace with the air staged decoupling combustion mechanical grate comprises a precombustion device anda main furnace body, wherein an outlet of the precombustion device is connected with an inlet of the main furnace body, the main furnace body comprises a top arch, a grate which is located below thetop arch and forms a main combustion area together with the top arch, a rear arch of which at least the front part is located between the top arch and the grate and a rear wall which is located abovethe rear end of the rear arch and forms a first outlet between the rear wall and the rear end of the top arch, a part, which is located in front of the rear arch, of the main combustion area comprisesan oxygen-poor combustion a