CN1079521C

CN1079521C - Flue combustor capable of removing dust and fume

Info

Publication number: CN1079521C
Application number: CN 94112591
Authority: CN
Inventors: 张英杰; 蔺葳
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-11-02
Filing date: 1994-11-02
Publication date: 2002-02-20
Anticipated expiration: 2014-11-02
Also published as: CN1122430A

Abstract

The present invention relates to a chimney combustion device for treatment of smoke from the tail part. The cylinder-shaped drum body of the present invention is composed of an inner drum body and an outer drum body. The inner drum body is enclosed into a cylinder-shaped combustion chamber. The middle of the inner drum body and the outer drum body is a hollow interlayer namely an annular air chamber. The side wall of the annular air chamber passes to the combustion chamber and is provided with an ari spraying hole. The upper end and the lower end of the annular air chamber are closed. The lower end of the annular air chamber is provided with an air inlet pipe connected with a blower. The air spraying direction of the air spraying hole is angled with the inner wall of the combustion chamber in a horizontal direction by an angle from 25 DEG to 45 DEG and in a vertical direction by an angle from 45 DEG to 60 DEG. Air sprayed from the air spraying hole rotate with a high speed in the combustion chamber to mix smoke and gas to be combusted reelingly to generate smokeless flame to reach the purpose of the elimination of smoke and dust thoroughly.

Description

A kind of flue combustor from afterbody smoke abatement and dust control

The invention belongs to a kind of flue combustor, be applicable in all flues of flue-gas temperature 〉=500 ℃ from afterbody smoke abatement and dust control.To solid fuel, the stove device of liquid fuel and gaseous fuel all is suitable for.

The method and apparatus of the blackness of exhaustion of China's elimination at present all solves in the stokehold or in burning, this just relates to furnace type structure, a series of problems such as the kind of fire grate kind and fuel and character need to solve, and just needn't relate to furnace type structure from the method and apparatus of afterbody elimination blackness of exhaustion, problems such as fire grate kind, fuel type and character, be 93209793.6 patent disclosures that are called " smoke-eliminating stove " by application number a kind of utilization is provided with the technology that smoke eliminator comes smoke abatement and dust control in flue, but its application surface is little, and effect is still undesirable.

The purpose of this invention is to provide a kind of flue combustor from afterbody smoke abatement and dust control, it is thorough to have smoke abatement and dust control, has wide range of applications, easy for installation, simple to operate characteristics such as long service life.

The profile of this flue combustor is a cylindrical tube, it is by cylindrical combustion chamber, the annular air compartment, spray wind hole, the refractory material lining, gas approach, exhanst gas outlet, blast pipe, blower fan constitutes, wherein cylindrical tube is the combustion chamber main body, constitute by inside and outside two cylindrical shells, the outer wall of outer cylinder body promptly is a burner outer wall, the inner barrel inwall surrounds cylindrical combustion chamber, in the middle of the inside and outside cylindrical shell is hollow interlayer, annular air compartment just, lead in annular air compartment periphery of inner wall and be provided with spray wind hole on the sidewall of cylindrical combustion chamber, these spray wind holes line ascent direction in the shape of a spiral are arranged on the periphery of inner wall, the air-out direction in spray wind hole becomes 25 °～45 in the horizontal direction with the inwall of combustion chamber, vertical direction at 45～60 jiaos, the upper and lower side sealing of annular air compartment, be provided with blast pipe in annular air compartment outer wall lower end, blast pipe is connected with blower fan, on blast pipe, be provided with the plate of regulating air quantity, the air intake direction of blast pipe becomes 25 °～45 in the horizontal direction with outer wall, cylindrical combustion chamber upper and lower side opening, the lower end is a gas approach, the upper end is an exhanst gas outlet, when burner moves, flue gas enters the combustion chamber from gas approach, this moment, blast pipe entered the annular air compartment along the air intake direction, in this air compartment, rotate even distributing wind at a high speed, air-out direction along spray wind hole sprays into the combustion chamber from spray wind hole then, and in the rotation of burning indoor high-speed, fully mix rotary combustion with the flue gas in entering the combustion chamber, produce smokeless swirl flame, because the spray wind hole of combustion chamber inwall is arranged by the helix ascent direction, and with inwall vertical direction at 45～60 ° of angles, so spraying into the flow direction that rises along helix when rotary combustion is fully mixed with flue gas in the combustion chamber from spray wind hole, wind advances, advance while rotating, thereby prolong burning time, reach the purpose of smoke elimination, because wind is rotated in laterally and flue gas joins in the burning indoor high-speed, vertically and flue gas tangent, make the grit in the flue gas in rotary course, be forced to, thereby reach the purpose of dedusting, because combustion chamber inwall lining refractories lining has prolonged the service life of combustion chamber.

This flue combustor has following advantage:

1, eliminate smoke thoroughly, good dedusting effect, blackness of exhaustion is below Lin Geman 0-0.5 level, and dust quantity is at 100mg/Nm ³

2, the scope of application is extensive, can be installed in the flue of various combustion furnaces, also can install and be contained in the chimney root;

3, simple in structure, make easily;

4, this burner is specially adapted to the stove that production technology needs reducing atmosphere;

5, easy for installation, long service life.

Description of drawings:

Fig. 1 is this flue combustor master pseudosection.

Fig. 2 is this flue combustor top plan view.

Fig. 3 is this flue combustor side cutaway view.

Structure and enforcement use to this flue combustor is described further below: the body of this flue combustor is a cylindrical tube 1 among Fig. 1, Fig. 2, Fig. 3, it comprises cylindrical combustion chamber 2, annular air compartment 3, sidewall at cylindrical combustion chamber 2 is provided with spray wind hole 4, combustion chamber upper and lower side opening is arranged in these spray wind holes line ascent direction in the shape of a spiral; The lower end is a gas approach 6, the upper end is an exhanst gas outlet 7, be provided with blast pipe 8 in annular air compartment outer wall lower end, blast pipe 8 is connected with blower fan 9, on blast pipe 8, be provided with to insert and pull 12, be used to regulate air quantity, 10 one-tenth 25 °～45s of blast pipe air-out direction and cylindrical shell, in the annular air compartment, rotate at a high speed after making wind enter air compartment, even distributing wind, spray wind hole 4 becomes 25 °～45 in the horizontal direction with the combustion chamber inwall, vertical direction at 45～60 ° of angles, 2 one-tenth high speed rotations fully mix rotary combustion with flue gas in the combustion chamber to make the wind that enters combustion chamber 3 from spray wind hole 4, and advance along the hand of spiral, thereby produce smokeless flames, utterly destroy blackness of exhaustion, owing to laterally join from the wind and the flue gas of the hole ejection of spray wind, vertically tangent, rotary combustion, rotation is advanced, force the grit of carrying secretly in the flue gas to sink, thereby the dust content that exhanst gas outlet is discharged significantly reduces, its dustiness is at 100mg/Nm ³Below, again because spray wind hole becomes 25 °～45 in the horizontal direction with inwall, (seeing the α angle of Fig. 2), vertical direction at 45～60 ° of angles, (seeing Fig. 2 β angle) flue gas rotary combustion in the combustion chamber, rotation is advanced, can be because of not adding the original flue gas flow rate of windage, so the installation of burner and use and can not change the original working condition of Combustion Source.This burner can be used in all flues of flue-gas temperature 〉=500 ℃, and it can be installed in the flue, also can be installed in the chimney root, and for solid fuel, liquid fuel and gaseous fuel all are suitable for.

Claims

1, a kind of flue combustor from afterbody smoke abatement and dust control, its cylindrical tube (1) is by cylindrical combustion chamber (2), annular air compartment (3), spray wind hole (4), refractory material lining (5), gas approach (6), exhanst gas outlet (7), blast pipe (8), blower fan (9) constitutes, and it is characterized in that cylindrical tube (1) is made of inside and outside cylindrical shell, the outer wall of outer cylinder body (10) is the outer wall of burner, inner barrel (11) surrounds cylindrical combustion chamber (2), is lined with refractory material lining (5) at cylindrical combustion chamber (2) inwall, is hollow interlayer in the middle of the inside and outside cylindrical shell, this hollow interlayer is annular air compartment (3) just, lead in this air compartment periphery of inner wall and be provided with spray wind hole (4) on the sidewall of cylindrical combustion chamber, the upper and lower side sealing of annular air compartment (3) is provided with blast pipe (8) in annular air compartment outer wall lower end, blast pipe is connected with blower fan (9), cylindrical combustion chamber (2) upper and lower side opening, lower end are gas approach (6), and the upper end is exhanst gas outlet (7).

2, according to the described flue combustor of claim 1, it is characterized in that on the sidewall of combustion chamber spray wind hole (4) in the shape of a spiral the line ascent direction be arranged in periphery of inner wall, the air-out direction in spray wind hole becomes 25 °～45 in the horizontal direction with the inwall of combustion chamber, vertical direction at 45～60 jiaos.

3,, it is characterized in that the air-out direction of blast pipe (8) becomes 25 °～45 with cylindrical shell (10) according to the described flue combustor of claim 1.