Mechanical adjustment premixed type fuel gas nozzle and method

Abstract

The invention discloses a mechanical adjustment premixed type fuel gas nozzle and a method. A plug (17) is arranged at the front end of a fuel gas pipe (19); a plurality of fuel gas outlets (18) are formed in the end, close to plug (17), of the front end of the fuel gas pipe (19); second fixing brackets (9) are arranged in the positions, close to the fuel gas outlets (18), of the fuel gas pipe (19); a connecting disk (-b21) is arranged at one end of the tail end of the fuel gas pipe (19); a fuel gas nozzle body (7) is arranged at the front end of a mixed pipe (16); first fixing brackets (5) are arranged at the ends, close to the fuel gas nozzle body (7), of the mixed pipe (16); a secondary air port (15) is formed in the end, close to a flange disk (-b22), of the mixed pipe (16); a connection disk (-a12) is arranged at the end, close to the secondary air port (15), of the mixed pipe (16); a main air port (4) is formed in the end, close to a flange disk (-a13), of an adjustable air pipe (3); the front section of the adjustable air pipe (3) is sleeved with an air pipe (2); and the air pipe (2) is fixed to a kiln wall (1) through an expansion bolt (23) which is used for a fastening steel plate (24) and is fixedly arranged on the tail section.

Description

[0001] This application is a divisional application of the invention patent application with the application number: 2013100465748, the invention name: mechanical adjustment premixed gas burner and method, and the application date: January 24, 2013. Technical field: [0002] The invention specifically relates to a mechanically regulated premixed gas burner and a method thereof, which belong to the technical field of kiln combustion and are suitable for the combustion application of refractory materials. Background technique: [0003] As far as the inventor knows, the combustion device used in the sintering process of refractory materials in China is diffusion combustion, and the commonly used diffusion combustion is that the gas-supporting gas and the gas are mixed while burning, and there are several disadvantages; It causes excess gas-supporting gas, increases the temperature of the exhaust gas, and increases the heat loss of the kiln. The second is that the gas cannot be ...

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Problems solved by technology

[0003] As far as the inventor knows, the current domestic combustion device used in the sintering process of refractory materials is diffusion combustion, and the commonly used diffusion combustion has several disadvantages in the combustion while the auxiliary gas and gas are mixed; Cause excess combustion gas, increase the temperature of the exhaust gas and increase the heat loss of the kiln

Second, due to poor mixing, the gas cannot be fully combusted, resulting in excess fuel, thus wasting fuel

The working method of the burner on the existing design combustion device is to sinter by the external flame under the condition of heat radiation, and at the same time, the highest temperature part is not on the sintered object on the kiln wall, and part of the heat energy is transferred by the inner kiln wall and the sintered object through radiation. It is not directly sintered by flame, so in the actual operation, the fire outlet of the kiln wall is particularly deformed due to sintering. In addition, the temperature inside the kiln wall is higher than the temperature of the sintered object, which is a waste of fuel

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