CN2425275Y - Burner - Google Patents

Abstract

The utility model belongs to a burner, the structure of which comprises a casing, a grate, a furnace and a furnace door, an annular air channel is arranged between the casing and the furnace, a circle of nozzles is arranged on the furnace, and a nozzle is set on the nozzle. An inclined nozzle is formed; an air inlet pipe is arranged on the periphery of the annular air passage, and the air inlet pipe is divided into two paths, one path communicates with the annular air escape channel, and the other path communicates with the cavity at the lower part of the grate. The embodiment of the utility model can form a conical fire curtain above the furnace when it is working, thereby overcoming the defects of low thermal efficiency of existing products, insufficient coal combustion of the burner, large waste of heat energy, and disadvantages of environmental protection and energy saving.

Description

a burner

The utility model belongs to a coal-fired burner.

Before the utility model was made, existing burners had been widely used in various industries. For example, the metal hot blast stove used in the tea machinery industry is mainly composed of a shell, a grate, a furnace and a furnace door. In specific applications, the pot body or heat exchanger is stacked above the burner to work. However, due to structural defects in the burner of the prior art structure, the efficiency of heat exchange utilization is low, and the waste heat of the flue gas generated by the burner cannot be fully utilized, which not only wastes a lot of heat energy, but also produces black smoke that will Pollution of the air, harmful to the environment.

The purpose of this utility model is to provide a burner with a new structure. The burner not only has high thermal efficiency, can fully burn coal without emitting black smoke, but also has a certain dust removal effect, which better solves the problems of environmental protection and energy saving.

The purpose of this utility model is accomplished through the following technical solutions:

The utility model is a burner, the structure of which includes a shell, a grate, a furnace and a furnace door. , a nozzle connected with the annular air channel is set on the nozzle; an air inlet pipe is arranged on the periphery of the annular air channel, and the air inlet pipe is divided into two routes, one is communicated with the annular air channel, and the other is communicated with the cavity at the lower part of the grate .

Compared with the products in the prior art, the utility model has several structural improvements. One is that an annular air channel is arranged on the periphery of the annular furnace above the burner furnace, and an annular nozzle is arranged above the furnace. A circle of nozzles inclined towards the furnace is arranged on the tube. Therefore, when the machine is working, the air nozzle inclined towards the furnace sprays preheated air toward the furnace, forming a conical fire curtain above the furnace, which will block the unburned residue and make the residue undergo secondary combustion. Secondary combustion, in order to achieve the purpose of environmental protection and energy saving, not only improves the combustion conditions of the burner, but also makes full use of the heat of the furnace wall and furnace.

Below in conjunction with accompanying drawing, the utility model is described in further detail through embodiment.

Accompanying drawing is the utility model embodiment sectional structure schematic diagram:

See attached picture. The utility model is a coal-fired burner, its structure consists of a circular shell 12, a grate 7, a furnace 6, a furnace door 4 and an ash outlet 9, and an annular Air passage 8, furnace gall 6 is provided with a circle nozzle 5, has offered nozzle 2 that communicates with annular air passage 8 on the nozzle 5; An air inlet pipe is set at the periphery of annular air passage 8, and the air inlet pipe is divided into two ways, Each road is provided with an independent damper, one air inlet pipe 11 communicates with the annular air passage 8, the other air inlet pipe 10 communicates with the cavity at the bottom of the grate 7, and the ash outlet 9 is located on the side of the burner. When the utility model is in use, the heated equipment is stacked above the burner.

The following is a brief description of the working principle of the burner in conjunction with the accompanying drawings:

After the burner is ignited, the fan blows to the air inlet pipe, and the wind enters the air inlet pipe along the direction 1, and enters the lower part of the grate 7 and the annular air passage 8 respectively through the air inlet pipes 10 and 11 in two ways, and reaches the annular air passage 8 After absorbing the heat from the outer wall of the furnace 6, the wind is sprayed through the nozzle 2 on the nozzle 5, and the inclined dense nozzle 2 makes the hot air form a conical fire curtain above the furnace 3, and the fire curtain will block the smoke in the flue gas. The uncombusted residue continues to float up, and combustible substances such as small coal dust and carbon monoxide that have not yet exhausted meet the conical fire curtain for secondary combustion, so that the chimney does not emit black smoke, and the coal dust is reduced to achieve the purpose of environmental protection and energy saving.

Claims (1)

1, a kind of burner, its structure comprises shell (2), grate (7), flue (6), fire door (4) and ash hole (9), it is characterized in that: between shell (12) and flue (6), be provided with an annular air channel (8), flue (6) is provided with a circle jet pipe (5), has offered the nozzle (2) that communicates with annular air channel (8) on the jet pipe (5); Be provided with blast pipe in annular air channel (8) periphery, blast pipe divides two-way, and one the tunnel (11) communicates with annular air channel (8), and another road (10) then communicate with the cavity of grate (7) bottom.

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