CN2197578Y

CN2197578Y - Purifier for boiler tail gas

Info

Publication number: CN2197578Y
Application number: CN 94203383
Authority: CN
Inventors: 靳新令
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-02-02
Filing date: 1994-02-02
Publication date: 1995-05-17
Anticipated expiration: 2004-02-02

Abstract

The utility model relates to a purifier for boiler tail gas, which comprises a boiler flue gas channel and a refractory architectural terra-cotta with multi holes on the cross section of the channel. The purifier for boiler tail gas makes the architectural terra-cotta store heat and generate radiation effect when flue gas passes through the architectural terra-cotta. The combustible matters remaining in the flue gas can relume in the holes of the architectural terra-cotta. The utility model can be used matching with the existing smoke prevention and dust control structures of the boiler, can also be used independently, and has the advantages of simple structure, easy assembly and disassembly and favorable black smoke removing effect.

Description

Purifier for boiler tail gas

The flue purifier of boiler that the utility model relates to belongs to the combustion apparatus of the device of burning uncombusted material.

At present, people solve boiler chimney over-emitting black exhaust, problem of environment pollution caused, generally adopt and in boiler, use secondary wind burning-aid method or burner hearth that burning chamber's method is set, these methods all in various degree realization impel the further purpose of burning of combustible, the phenomenon of over-emitting black exhaust is improved.But present employed plain cylindrical furnace, use above-mentioned or other gas cleaning way after, also have part residual combustible, particularly carbon black particle, can not completing combustion, chimney still also has smoke pollution environment.

The purpose of this utility model is, designs a kind of new flue purifier of boiler, and it can make combustible residual in the flue gas fire again, solves problem of environmental pollution, and do not influence other smoke abatement and dust control structure that adopts with stove.

The technical solution of the utility model is: a kind of flue purifier of boiler is characterized in that: by the flue of boiler flue gas outlet be contained on this flue cross section, periphery and flue inwall be in succession the fire-resistant pottery plate formation of porous mutually.

The fire-resistant pottery plate of porous in the present technique has resistance to elevated temperatures, has formed a plurality of ducts by thickness of slab, and its hole wall can be raiseeed and deposit heat.That section walling of flue that combines with the fire-resistant pottery plate of porous periphery is built by laying bricks or stones by refractory material and to be formed.

When the high-temperature flue gas of boiler passes through the fire-resistant eramic board passage of porous continuously, the hole wall of the fire-resistant pottery plate of porous has absorbed the heat that flue gas brings, when this heat is put aside to a certain degree, react on fire-resistant pottery plate of porous and flue gas wherein again, make the fire-resistant pottery plate of porous produce the infrared radiation effect, make combustible residual in flue gas combustion again under hyperthermia radiation.Combustible is the design minimum thickness of this pottery plate in the distance of pottery plate duct internal combustion process to burning, and calculates the pottery plate thickness according to conditions such as the flue sectional area of boiler and exhaust smoke levels, can receive good purification flue gas effect.

Advantage of the present utility model is: simple in structure, this device can independently use, and also can cooperate other purification flue gas method to use jointly, and not need to change corresponding smoke abatement equipment, can make except that the black smoke better effects if.

Below in conjunction with description of drawings embodiment of the present utility model.

Fig. 1 is the structural representation of the utility model flue purifier of boiler.

Fig. 2 is the A-A view of the utility model Fig. 1.

Among the figure, flue (1) is meant that section exhaust gases passes that is in boiler flue gas outlet, this flue is built by laying bricks or stones by refractory material and is formed, the fire-resistant pottery plate of porous (2) is housed on the cross section of this flue, and for easy to loading and unloading, present embodiment adopts some root holes footpath 25mm, the circular refractory clay pipe of wall thickness 3.5mm is arranged and composition pottery plate, the long 250mm of this earthen-ware pipe, exhaust gases passes is formed in the hole of hole that forms between the refractory clay pipe and refractory clay pipe itself jointly.

Claims

1, a kind of flue purifier of boiler is characterized in that: by the flue of boiler flue gas outlet be contained on this flue cross section the fire-resistant pottery plate composition of the porous that periphery is connected with the flue inwall.