Injector type smoke preheating burner with high efficiency

Abstract

The invention discloses an injector type smoke preheating burner with high efficiency, mainly comprising an upper plate (3), a bottom barrel (6) fixed with the upper plate (3) into a whole and provided with a chamber inside, a spray pipe (7) connected with the bottom barrel (6), and a gas inlet pipe (1), wherein the gas outlet end of the gas inlet pipe (1) is positioned in the bottom barrel (6) through the upper plate (3). The injector type smoke preheating burner is characterized in that a gas preheating channel (4) is arranged in the bottom barrel (6), wherein one end of the gas preheating channel (4) is connected with the gas inlet pipe (1), and the other end of the gas preheating channel (4) is connected with a mixture connection pipe (5) positioned in the bottom barrel (6); the gas outlet end of an air inlet pipe (2) arranged on the upper plate (3) is communicated with the chamber in the bottom barrel (6), and emery with good heat storage effect is filled in the chamber to preheat the air; and a smoke inlet pipe (9) connected with the mixture connection pipe (5) is arranged at the bottom of the bottom barrel (6). In the invention, the high-temperature smoke generated in a fire channel can be effectively and repeatedly utilized, gas entering the fire channel can be sufficiently preheated to increase the temperature of the gas quickly, and very good heat vibration conduction effect is achieved.

Description

technical field [0001] The invention relates to a burner, which is a high-efficiency jet-suction smoke preheating burner. Background technique [0002] At present, most of the burners used in domestic carbon anode roasting furnaces are mechanically adjusted air distribution and direct injection burners. The air distribution of this kind of burner is not easy to control, and the air intake volume does not match the gas input volume, so it often causes insufficient combustion in the fire channel, or local overburning. When the combustion is not sufficient, the gas with a lower temperature is equivalent to blowing cold air into the furnace, and at the same time, the uncontrolled mechanical air door continuously sucks in cold air into the furnace under the action of negative pressure in the furnace. Under these dual effects, the thermal efficiency of the gas is low, and the furnace temperature fluctuates greatly, which is difficult to control. A large amount of gas is wasted, ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defects of low thermal efficiency, difficult control, and inability to reuse the flue gas generated after combustion of gas, and to provide a new type of high-efficiency jet-suction type flue gas preheating burner

Images