CN2531250Y

CN2531250Y - Special gas burner for tundish roaster

Info

Publication number: CN2531250Y
Application number: CN02213776U
Authority: CN
Inventors: 王乐琴; 刘伟; 聂跃全
Original assignee: LUOYANG LONGSHENG METALLURGICAL EQUIPMENT CO Ltd
Current assignee: LUOYANG LONGSHENG METALLURGICAL EQUIPMENT CO Ltd
Priority date: 2002-04-05
Filing date: 2002-04-05
Publication date: 2003-01-15
Anticipated expiration: 2012-04-05

Abstract

The utility model fixedly connects a gas chamber connected with an air pipe with an air chamber connected with a gas pipe to be integral through flanges. One side of the air chamber is provided with a burner, an inner pipe and a mixing chamber are arranged in the inner of the air chamber. One end of the inner pipe is connected with the gas chamber through flanges, and the other end is inserted into the mixing chamber. The inlet end of the mixing chamber is communicated with the air chamber, and the outlet end thereof extends out of the burner. Because the utility model fully utilizes the energy taken away by waste gas to heat combustion air, thus the combustion air can fully exchange heat with the waste gas, the combustion air temperature is greatly improved, and a stable burning is realized. The gas and the combustion air reversely rotate through respective chamber, and keep on mixing and burning after multiple layers of half premixing and ejection, the contact area between the gas and the combustion air is greatly increased. Not only the best mixing effect is obtained, but also flame intensity and jet velocity are enhanced. The temperature difference in the chamber is not bigger than 20 DEG C, and the emissions of CO, Nox and other harmful gases are greatly decreased.

Description

The special-purpose gas burner of pans roaster

Affiliated technical field

The utility model belongs to the process for making equipment technical field, and what relate generally to is the special-purpose gas burner of a kind of pans roaster.

Background technology

Burner is the critical component of cured effect quality, energy resource consumption height.Burners in prior belongs to the internal-mixing burner, the principle that it implements burning is that (as shown in Figure 3) coal gas (pressure of coal gas is generally at 4000-8000Pa) directly enters mixing bunker 6 through gas pipe 2, air (provides air more than the 5080Pa by high pressure positive blower, and through preheating) also directly enter mixing bunker 3 through air hose 1, coal gas mixes the back by burner 7 directly burnings of ejection back with combustion-supporting gas air in the storehouse.Higher because of coal gas and combustion air pressure, cause coal gas and combustion air also thoroughly not to mix and promptly spray burner, cause and mix inhomogeneous, combustion instability, insufficient, shortcomings such as contaminated air, low, the easy dehydration of flue gas injection speed, tempering.

Summary of the invention

The purpose of this utility model promptly produces thus, proposes the special-purpose gas burner of a kind of pans roaster.This burner has not only improved flame intensity and jet velocity in use, and sufficient combustion, stable, has reduced energy consumption and exhaust emission.

For achieving the above object, the utility model is achieved through the following technical solutions: two are connected to one by flange with coal gas storehouse and the air bin that air hose is connected with gas pipe respectively, side at air bin is provided with burner, manage and the mixing bin in being provided with inside, an end of pipe is communicated with the coal gas storehouse through flange in being somebody's turn to do, the other end stretches into and mixes in the bin, the entrance point that mixes bin is communicated with air bin, and its port of export stretches out outside the burner.

The utility model is reasonable in design, and is simple in structure.Owing to make full use of the heat that waste gas is taken away, be used for heating combustion air, make combustion air and waste gas carry out heat exchange fully each other, increase substantially combustion air temperature, thereby increase heat content, realize smooth combustion.Combustion gas and combustion air are through separately bin reverse rotation, through multilayer half premixed, mixed combustion is continued in the ejection back, has increased the contact area between combustion gas and the combustion air greatly, can reach best blending, flame jet velocity is at a high speed arranged again, make the ladle homogeneous heating, help prolonging ladle service life, can improve flame intensity and jet velocity again, at the bottom of the high temperature gas flow directive bag with burning, make that the temperature difference is not more than 20 ℃ in the storehouse.Because sufficient combustion greatly reduces discharge of harmful gases such as CO and Nox, has obviously improved in-situ production environment.

Description of drawings

The utility model has following accompanying drawing:

Accompanying drawing 1 is the utility model external structure sketch.

Accompanying drawing 2 is the utility model internal structure sketch.

Accompanying drawing 3 is existing burner structure schematic diagram.

Among the figure, 1, air hose, 2, gas pipe, 3, the coal gas storehouse, 4, flange, 5, air bin, 6, mix bin, 6-1, elementary mixing tube, 6-2, secondary mixing tube, 7, burner, 8, interior pipe.

The specific embodiment

In conjunction with the accompanying drawings, it is as follows to provide embodiment of the present utility model:

Shown in accompanying drawing 1-2, present embodiment mainly is made up of coal gas storehouse 3, air bin 5, interior pipe 8, burner 7 and mixing bin 6, coal gas storehouse 3 is connected to one by flange 4 with air bin 5, be provided with gas pipe 2 on coal gas storehouse 3, be provided with air hose 1 on air bin 5, a side of air bin 5 is provided with burner 7, pipe 8 and mixing bunker 6 in being provided with in it, this mixing bunker 6 is multistage mixing (present embodiment is three grades), adopts the staggered suit of steel pipe of many different-diameters, and is fixing with the rod iron welding.One end of interior pipe 8 is communicated with coal gas storehouse 3 through flange 4, the other end stretches in the elementary mixing tube 6-1 that mixes in the bin 6, end in this elementary mixing tube 6-1 is communicated with air bin 5, the other end stretches in the secondary mixing tube 6-2, the end of this secondary mixing tube 6-2 is communicated with air bin 5, and the other end stretches out outside the burner 7.Present embodiment in use, coal gas (pressure of coal gas is generally at 4000-8000Pa) at first enters coal gas storehouse 3 through gas pipe 2, then in interior pipe 8 enters the elementary mixing tube 6-1 that mixes in the bin 6; Air (provide air more than the 5080Pa by high pressure positive blower, and through preheating) enter air bin 3 through air hose 1, enter elementary mixing tube 6-1, the secondary mixing tube 6-2 and the burner 7 that mix bin then respectively.When air enter elementary mixing tube 6-1 advance in during pipe 8 end, opposite spin forms eddy current, runs into coal gas and carries out first order mixing, continue to the end of elementary mixing tube 6-1 after the mixing, carry out the second level with air in the secondary mixing tube 6-2 and mix; Carrying out the third level with the air of burner 7 ejections when mist ejection secondary mixing tube 6-2 mixes.Through multistage like this mixing, combustion gas has obtained preheating, when work, lights combustion gas, and combustion gas just can fully be burnt, and has reduced discharge of harmful gases such as CO and Nox, has obviously improved in-situ production environment.Increased heat content, realized smooth combustion, and the ladle homogeneous heating, helped prolonging ladle service life, can improve flame intensity and jet velocity again, at the bottom of the high temperature gas flow directive bag with burning, made that the temperature difference is not more than 20 ℃ in the storehouse.

Claims

1, the special-purpose gas burner of a kind of pans roaster, comprise air hose (1), gas pipe (2), mix bin (6) and burner (7), it is characterized in that: be respectively equipped with coal gas storehouse (3) and air bin (5) at the entrance point of described air hose (1) and the entrance point of gas pipe (2), this coal gas storehouse (3) and air bin (5) are connected to one by flange (4), in air bin (5), be provided with interior pipe (8) and mix bin (6), an end of pipe (8) is communicated with coal gas storehouse (3) through flange (4) in described, its other end stretches into and mixes in the bin (6), an end that mixes bin (6) is communicated with air bin (5), and its other end stretches out outside the burner (7).

2, the special-purpose gas burner of pans roaster according to claim 1, it is characterized in that: described mixing bin (6) is multistage mixing, by the staggered suit of the steel pipe of many different-diameters.

3, according to claim 1, the special-purpose gas burner of 2 described pans roasters, it is characterized in that: described mixing bin (6) mixes for secondary, one end of its elementary mixing tube (6-1) is communicated with air bin (5), the other end stretches in the secondary mixing tube (6-2), one end of secondary mixing tube (6-2) is communicated with air bin (5), and its other end stretches out outside the burner (7).