CN201209865Y

CN201209865Y - Flare combustor

Info

Publication number: CN201209865Y
Application number: CNU2008200125473U
Authority: CN
Inventors: 王常海; 徐海平; 金家影; 单永丰; 张长青; 李刚; 许波; 何鸥; 李华峰; 杜建; 何忠海
Original assignee: Mcc Coking & Refractory Automation System Co Ltd; Acre Coking and Refractory Engineering Consulting Corp MCC
Current assignee: Acre Coking and Refractory Engineering Consulting Corp MCC
Priority date: 2008-05-07
Filing date: 2008-05-07
Publication date: 2009-03-18
Anticipated expiration: 2018-05-07

Abstract

The utility model relates to a torch burner used for coke oven gas collector raw gas irradiation ignition in carbonization industry, comprising a firing gun, a wind screen, a barrel, a stable-combustion device arranged on an upper part of the barrel, which is of a partially closed type structure; the wind screen is arranged on the outside of the stable-combustion device, and the wind screen is a structure which is closed around; an igniting gun mounting tube is arranged on the wind screen, which is arranged inside the igniting gun mounting tube extending into the inside of the wind screen from the outside of the wind screen. A steam smoke eliminator is arranged in the stable-combustion device, the steam smoke eliminator is connected with a steam supply pipe for connecting one end, and the other end communicates at a ring pipe at an outlet of the barrel, a plurality of steam nozzles are divided byu the ring pipe. The utility model has good burning effect and small pollution.

Description

Mix flare burner

Technical field

The utility model relates to a kind of coking industry and is used for the coke oven collecting main raw coke oven gas and diffuses the burner of lighting.

Background technology

The energy and environmental problem have become the focus of world attention at present, and the development of coking field environmental protection technology is the perfect important symbol of modern coking technology.

The coke oven collecting main raw coke oven gas diffuses the application and the process condition of control device: equipment be installed on the diffusion of gas collecting pipe pipe and the control room in; Coke oven can the control collecting main pressure under the situation of normal operation about 70Pa, the leakage that coal gas can be a large amount of under the situation of or blower fault too high at collecting main pressure, contaminated environment, even cause coke oven to catch fire causing serious economy loss; The application that the coke oven collecting main raw coke oven gas diffuses control device has solved the discharging of excessive coal gas and coal gas has been burnt, and has protected environment, has also guaranteed the technological requirement that coke oven is worked in the certain pressure scope simultaneously.

Early stage coke oven is all adopting operation manually aspect coal gas discharging and the controlled pressure, its reaction speed is slow, and human factor is many, and the work on the spot condition is poor, and is big to workman's degree of danger; Simultaneously manual firing's difficulty is big, can't guarantee the promptness of lighting a fire, even will not light, and is big for environment pollution.

Because the technology characteristics of coke oven collecting main, its increased pressure speed is fast under the abnormal conditions, and extraneous feature is not obvious, in case during the value of reaching capacity, the counter weight type safety valve is opened in a large number on the discharge, coal gas is shrouding the coke oven top, serious environment pollution, and bring potential safety hazard.Human factors such as manual operation exists pinpoints the problems slowly, carries out slow motion, and working procedure is unreliable.

The coke oven collecting main raw coke oven gas diffuses the design of control device must satisfy following basic demand:

1, the automatic ignition device of reliable design.Automatic ignition device is the necessary guarantee of lighting emission coal gas reliably, is the basic demand of protection atmospheric environment, working environment, is the best measure that when preventing the manual firing operating personnel is caused unnecessary injury simultaneously.

2, the back-fire relief of reliable design and fire extinguishing system.Back-fire relief and fire extinguishing system are the safety factors that any combustion apparatus must take into full account reliably, are the key elements that must design.

3, design must be higher than more than the interior any building 3.5m of 10m scope, and guarantees the operating personnel of 3.5m place heat radiation less than 4.7kW/m ²It is a kind of protection requirement to neighboring buildings and staff's safety.

4, designed combustion is relatively complete diffuses burner and has fire, windproof, the characteristics that eliminate smoke of not taking off.Burner design must be considered the influence of external environment and the factor of combustion characteristics.

5, design efficient pressure and diffuse the model of control, the assurance pressure parameter can be set arbitrarily.Pressure and diffuse fixing control logic is arranged between the equipment, pressure parameter needs to set according to on-site actual situations, guarantees the needs of individual instances.

Burner is the main body of whole system, is undertaking the important task of whole system gas-fired.

Summary of the invention

The purpose of this utility model provides a kind of self-priming air distribution, steam of adopting and holds together the semi-enclosed mix flare burner that fire eliminates smoke, steam smoothering purges, and this burner has been optimized installing space, and combustion efficiency is good, pollutes little.

For achieving the above object, the utility model adopts following technical scheme:

Mix flare burner, it comprises burning torch, hurricane globe, cylindrical shell, smooth combustion apparatus, smooth combustion apparatus is positioned at cylindrical shell top, be semi-enclosed structure, be provided with hurricane globe in the smooth combustion apparatus outside, the structure that hurricane globe seals around being is provided with the burning torch mounting pipe on hurricane globe, burning torch is positioned at the burning torch mounting pipe and stretches into hurricane globe inside by the hurricane globe outside.

Also be provided with the steam smoke eliminator in smooth combustion apparatus, steam smoke eliminator tube connector one end is connected with steam supply pipe, and the other end is communicated with the endless tube in the cylindrical shell exit, tells some little steam jets by endless tube.

Inner barrel in the smooth combustion apparatus bottom also is provided with the steam smoothering device, and steam smoothering device tube connector one end is connected with steam supply pipe, and the other end is divided into several arms that spray steam.

Compared with prior art, the beneficial effects of the utility model are:

(1) in selection, all adopts stainless steel 1Cr18Ni9Ti, satisfied high temperature resistant and corrosion resistance;

(2) structurally adopted the self-priming injection type, by coal gas flow and air that the injection of steam drives in the whole burner rises, cause burner circumference air to go into the combustion zone and form bottom-up air motion by burner below injection, make coal gas fully with air mixing completing combustion, the rigidity of raising flame;

(3) structurally adopt the smooth combustion apparatus design, form stable incendiary source by its change gas flow rate and airflow direction at the gas exit place, and guarantee steady fire, the anticreep fire action of whole burner;

(4) structurally adopt hurricane globe design,, coal gas is played windproof effect in the root burning, guaranteed that most of coal gas lights and burn, also greatly reduce the caloradiance of torch burning periphery by form a semi-enclosed zone in the periphery;

(5) structurally adopt the design of steam smoke eliminator, establish some little steam jets at mix flare burner gas exit place, the motion of the jet band moving air flow by high steam makes air further mix also completing combustion with coal gas, the influence of stablizing and reduce extraneous wind direction of flame combustion that the while vapor stream has formed a stable locality protection, and the water vapour in the steam can fully burn coal gas with the carbon component reaction generation " water-gas " in the coal gas in the flame high-temperature region;

(6) structurally adopt steam smoothering device design, in the mix flare burner cylindrical shell, establish many fire extinguishing tubes, spray a large amount of steam in the time of will extinguishing torch in system, in the mix flare burner cylindrical shell, form vapor film, flame by the time it is extinguished.

Description of drawings

Fig. 1 is the front view of mix flare burner

Fig. 2 is the vertical view of mix flare burner

The specific embodiment

See Fig. 1, mix flare burner, it comprises burning torch 1, hurricane globe 2, cylindrical shell 3, smooth combustion apparatus 4, steam smoke eliminator 5, steam smoothering device 6, cylindrical shell is positioned at the exit of exhaust stack, be connected with exhaust stack by flange 12, smooth combustion apparatus 4 is positioned at cylindrical shell 3 tops, is semi-closed structure; Steam smoke eliminator 5 and steam smoothering device 6 are two arms being told by main steam range, and arm one enters inner barrel from the cylindrical shell bottom, and the arm that is divided into several even layouts is steam smoothering device 6 to cylindrical shell top; Arm two enters the endless tube in cylindrical shell 3 exits, tells the periphery that some little steam jets 13 are positioned at gas outlet by endless tube, is steam smoke eliminator 5; Hurricane globe 2 is positioned at the mix flare burner outside, for around enclosed construction, it is to stop strong air directly to blow to the burner gas exit that hurricane globe mainly acts on, and torch burning is played steady combustion.Be provided with two burning torch mounting pipe on hurricane globe, symmetry is installed on the hurricane globe 2.

Below each building block is described specifically:

Burning torch 1: be the capital equipment of lighting a fire automatically, diameter is 18mm, and length 1000mm gets angry and holds 1000 ℃ of heatproofs.Totally two burning torches on every cover burner, symmetry is installed in hurricane globe 1 both sides.

Hurricane globe 2: suck the part air; Make in the combustion chamber that hurricane globe is formed, the stayed for some time effect of thermal incineration of mist simultaneously.Can also the retention flame, make it not be subjected to the influence of external environment condition.Two burning torch mounting pipe are housed, in order to the fixing point firelock thereon.

Cylindrical shell 3: adopt stainless steel 1Cr18N9Ti to make; It is the main body of mix flare burner, works to support, diffuse, dispel the heat the high about 1.5m of cylindrical shell.

Smooth combustion apparatus 4: all adopt stainless steel 1Cr18N9Ti to make; By changing gas flow rate and airflow direction, play the point of safes burning things which may cause a fire disaster, play a part steady fiery, anticreep is fiery.

Steam smoke eliminator 5, steam smoothering device 6: steam enters main steam range from interface, and main steam range is divided into two, and one enters inner barrel, in the cylindrical shell bottom, be divided into four arm ejection steam, make cylindrical shell top form the steam interlayer, reach the anti-backfire effect, constitute steam smoothering device 6.Another root enters the endless tube in cylindrical shell exit, tells some little steam jets 13, one by endless tube, and along with the ejection of steam, injection part air makes the air of injection fully mix with the coal gas of cylindrical shell ejection, reaches smokeless combustion; The 2nd, constitute the steam protection layer, the torch cylindrical shell is carried out thermal insulation protection and holds together coal gas not large tracts of land diffusion in certain altitude, constitute steam smoke eliminator 5.

Support 7, support 8, support 9, flange 10, flange 11, flange 12: play effects such as fixing, support.Flange 12 is that mix flare burner is fixed on the exhaust stack upper end, and flange 10 is that steam smoke eliminator 5 is connected with steam supply pipe; The effect of flange 11 is that steam smoothering device 6 is connected with steam supply pipe.

Claims

1, mix flare burner, it is characterized in that, it comprises burning torch, hurricane globe, cylindrical shell, smooth combustion apparatus, smooth combustion apparatus is positioned at cylindrical shell top, be semi-enclosed structure, be provided with hurricane globe, the structure that hurricane globe seals around being in the smooth combustion apparatus outside, be provided with the burning torch mounting pipe on hurricane globe, burning torch is positioned at the burning torch mounting pipe and stretches into hurricane globe inside by the hurricane globe outside.

2, mix flare burner according to claim 1, it is characterized in that, also be provided with the steam smoke eliminator in smooth combustion apparatus, steam smoke eliminator tube connector one end is connected with steam supply pipe, the other end is communicated with the endless tube in the cylindrical shell exit, tells some little steam jets by endless tube.

3, mix flare burner according to claim 1 is characterized in that, the inner barrel in the smooth combustion apparatus bottom also is provided with the steam smoothering device, and steam smoothering device tube connector one end is connected with steam supply pipe, and the other end is divided into several arms that spray steam.