CN104496208B - A kind of burning girder for limekiln with air-cooling apparatus - Google Patents
A kind of burning girder for limekiln with air-cooling apparatus Download PDFInfo
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- CN104496208B CN104496208B CN201510021873.5A CN201510021873A CN104496208B CN 104496208 B CN104496208 B CN 104496208B CN 201510021873 A CN201510021873 A CN 201510021873A CN 104496208 B CN104496208 B CN 104496208B
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Abstract
A kind of burning girder for limekiln with air-cooling apparatus, fuel channel, burner including beam body and inside beam body, wherein beam body defines air duct；Burner includes the fuel nozzle being arranged on fuel channel and is provided with beam body and corresponds to the comburent air duct being connected with air duct on fuel nozzle position；Above beam body or surrounding offers cooling air pipeline, it is connected to air duct, the air ejected can effectively cool down beam body crown wall, and prevent thermal-flame from directly touching the part, especially beam body crown wall bottom side plate junction, ablation effect is reduced, can additionally weaken the particle that is mingled in the air-flow of burner ejection to the souring of burning beam crown wall, to improve the service life of burning beam；And cooling air pipeline is easily worked, and will not change the overall structure size of burning beam, is not needed to be adjusted the mounting hole of burning beam in existing kiln body, can directly be installed in existing kiln body.
Description
Technical field
The invention belongs to combustion equipment technical fields, are related to a kind of burning beam in limekiln, and in particular to one kind has
The burning beam of air-cooling apparatus.
Background technique
Beam-type limekiln has that low cost, low energy consumption, production capacity is strong, working elastic is big and fuel adaptive surface is wide etc. one
Number of advantages is widely used in the lime production of the purposes such as metallurgy, chemical industry.Lime production is carried out using beam-type limekiln
When, the raw materials such as lime stone successively pass through the intracorporal pre-add hot-zone of kiln, calcining zone, cooling zone, finally from kiln bottom portion under kiln roof fall
Discharge port output.The decomposition temperature of lime stone is at 900 DEG C or so, and calcination temperature is between 1000 DEG C~1200 DEG C, mainly
Calcining is completed in the higher calcining zone of temperature.In order to reach calcination temperature, the calcining zone of beam-type limekiln is equipped with burning beam, burning
Beam mainly includes air duct, fuel channel and cooling medium channel, and air port and fuel nozzle form the burner of burning beam,
Burner sprays fuel and combustion air into kiln body, and the two occurs combustion reaction and forms thermal-flame, and discharges amount of heat use
In the calcining of lime stone.Since burning beam is mounted on the higher calcination area of temperature, and calcination area temperature is much higher than burning beam
The allowable temperature of material, therefore, the wall surface of burning beam use hollow structure on the whole, are passed through flowing in hollow cavity
Cooling medium cools down the beam body wall surface of place in the high temperature environment.
The case where there is burning or raw burn in order to avoid lime, it is desirable that the heat distribution of calcining zone is uniform as far as possible, because
This, beam-type limekiln is widely used fills several burning beams, in the difference of calcining zone on the sustained height face of kiln body calcining zone
The topology layout of several row's burning beams is filled on height face, and (is mounted on the burning in lime kiln body in two side walls of burning beam
Beam) or single side wall (burning beam being embedded in the wall of limekiln) on open up several burners, the injection direction of flame is vertical
In the falling direction of raw limestone, mode is burnt in referred to as side, makes flame to achieve the effect that port coverage is big, realizes calcining
The purpose of area's uniform heat distribution.
Raw limestone is mostly the nonstandard bulk of shape, during falling from kiln top, if do not used special
Measure, raw limestone can wash away the side wall of burning beam, shorten the service life of burning beam；In addition, lime stone is former
Material is also easy to enter in the burner that burning beam is provided on side wall, and the time, which grown, to result in blockage to burner, seriously affect stone
Reliable, the safe operation of ash furnace.In order to avoid above-mentioned problem is set for being burnt the burning beam of mode using side on the top of beam
There is width to be greater than the shutter of burning beam width, from the point of view of the cross section of burning beam, burning beam is " T " shape structure；Alternatively, burning
The upper width of beam is greater than lower width, and from the point of view of the cross section of burning beam, burning beam is inverted trapezoidal structure wide at the top and narrow at the bottom；It adopts
Raw limestone washing away and raw limestone is avoided to enter burner to burning beam side wall can be reduced with both frame modes
It is interior.
In combustion, fuel and combustion air are to be injected into kiln body to burn with higher speed, fuel
Gas mostly uses the byproduct of the chemical industries such as calcium carbide furnace gas, coke-stove gas, contains a certain amount of dust particles；And for solid
It itself is exactly granular fuel for fuel.For the burning beam of " T " shape structure or inverted trapezoidal structure wide at the top and narrow at the bottom,
The burner of side wall is abutted with blocking the burning beam top of effect, the particle being mingled in the air-flow that burner sprays can to the part into
Row is washed away and is denuded, and can be formed about thermal-flame in burner after the ejection of fuel, air, in addition, raw limestone is falling
The part can also be washed away in the process；By washing away and denuding for a long time, under thermal-flame effect, which holds very much
Easy ablated damage, so that the intracorporal cooling medium leakage of hollow cavity, leads to shut-down (breakdown) mainteance or replacement burning beam.
Patent is application No. is in 201020046147.1 patent document in existing technology, in inverted trapezoidal wide at the top and narrow at the bottom
The entire outer surface of the burning beam of structure removes at burner, is respectively provided with one layer of heat resistant and wear resistant thermal insulation layer；Patent publication No. is
In the patent document of CN201330225Y, flame and burner ejecta are touched around the burner mouth of the burning beam of " T " shape structure
The position arrived is equipped with wearing layer.Above-mentioned two patent has following problems: being difficult heat resistant and wear resistant thermal insulation layer or resistance to reliably
Mill layer is fixedly mounted in burning beam beam body；For the limekiln gone into operation, if replacing the burning beam, need to existing kiln body
On the size of burning beam mounting hole be adjusted；The processing of heat resistant and wear resistant thermal insulation layer or wearing layer is relatively difficult；High temperature resistant
The material of Wear-resistant heat insulation layer or wearing layer, processing, installation cost are relatively high；There are heat resistant and wear resistant thermal insulation layer or wearing layer parts
After damage, entire burning beam requires the risk repaired or replaced.
Summary of the invention
Aiming at the problems existing in the prior art, the present invention provides a kind of limekiln burning with air-cooling apparatus
Beam can weaken the particle that is mingled in the air-flow of burner ejection to the souring of burning beam crown wall, and reduce thermal-flame pair
The ablation of burning beam crown wall acts on, to improve the service life of burning beam.
The technical solution adopted in the present invention is as follows:
A kind of burning girder for limekiln with air-cooling apparatus, the cartridge including beam body and inside beam body
Road, burner, wherein beam body defines air duct；Burner includes the fuel nozzle being arranged on fuel channel and is provided with beam body
The comburent air duct being connected with air duct on corresponding fuel nozzle position, near the comburent air duct in beam body,
Offer the cooling air pipeline being connected with air duct.
Beam body is made of beam body crown wall, beam body side wall, beam body bottom wall, and beam body crown wall, beam body side wall, beam body bottom wall can be complete
Portion or it is partial be set as hollow structure, cooling medium circulation cavity is defined on the inside of wall.
Burner can be opened up in the unilateral side of beam body side wall, can also be opened up in bilateral.
Cooling air pipeline is arranged above comburent air duct or surrounding.
Cooling air pipeline can be an entirety, discrete can also be distributed.
The cross section of beam body can be "T"-shaped, rectangle or trapezoidal.
Beam body crown wall wall surface can be welded by muti-piece metal plate, can also be formed by one piece of metal plate is moulded.
Compared with prior art, the present invention having the following advantages and outstanding effects:
1, cooling air pipeline is set between burner and beam body crown wall, and the air ejected can effectively suppress burner
The air-flow with particle sprayed, reduces the souring to beam body crown wall, to improve the service life of burning beam；
2, cooling air pipeline is set between burner and beam body crown wall, and the air ejected can be effectively to back
Bottom plate and side plate are cooled down, and prevent thermal-flame from directly touching the part, especially bottom plate and side plate junction, are reduced
Ablation effect, to improve the service life of burning beam；
3, cooling air pipeline is set between burner and beam body crown wall, and structure is simple, is easily worked, and cost is relatively low；
4, cooling air pipeline is set between burner and beam body crown wall, the overall structure size of burning beam will not be changed,
It does not need to be adjusted the mounting hole of burning beam in existing kiln body, can directly be installed on existing limekiln.
Detailed description of the invention
Fig. 1 is a kind of cross-sectional view of the burning girder for limekiln with air-cooling apparatus provided by the invention.
Fig. 2 is the burning beam burner near zone partial enlarged view that the present invention has monoblock type cooling air pipeline.
Fig. 3 is the burning beam burner near zone partial enlarged view that the present invention has discrete type cooling air pipeline.
Fig. 4 is a kind of working principle diagram of the burning girder for limekiln with air-cooling apparatus provided by the invention.
Symbol description is as follows in figure: 1- beam body；2- beam body crown wall；3- beam body side wall；4- beam body bottom wall；5- cooling medium stream
Logical cavity；6- beam body crown wall bottom plate；7- beam body crown wall upper plate；8- beam body crown wall side plate；9- beam body side wall inner wall；10- beam body side
Wall outer wall；11- beam body bottom inner wall；12- beam body bottom wall outer wall；13- fuel channel；14- air duct；15- combustion-aid air pipe
Road；16- fuel nozzle；17- burner；18- cooling air pipeline；19- back bottom side plate junction；20- cooling air stream；21-
Flame.
Specific embodiment
The principle of the present invention, structure and specific embodiment are described further with reference to the accompanying drawing.
Fig. 1 is a kind of cross-sectional view of the burning girder for limekiln with air-cooling apparatus provided by the invention,
A kind of burning girder for limekiln with air-cooling apparatus includes beam body (1) and is located at beam body (1) as we can see from the figure
Fuel channel (13), the burner (17) of inside；Beam body (1) is made of beam body crown wall (2), beam body side wall (3), beam body bottom wall (4),
Beam body crown wall (2), beam body side wall (3), beam body bottom wall (4) limit air duct (14)；Beam body crown wall (2), beam body side wall (3),
Beam body bottom wall (4) is hollow structure, inside sets cooling medium circulation cavity (5)；Beam body crown wall bottom plate (6), beam body crown wall upper plate
(7), the cooling medium that beam body crown wall side plate (8) limits beam body crown wall (2) circulates cavity (5), beam body crown wall bottom plate (6), beam body
Crown wall side plate (8) can be integrally welded, can also be moulded by one piece of metal plate, such as directly simmers integral or is machined to
One；The cooling medium that beam body side wall inner wall (9), beam body side wall outer wall (10) limit beam body side wall (3) circulates cavity (5)；Beam
The cooling medium that body bottom inner wall (11), beam body bottom wall outer wall (12) limit beam body bottom wall (4) circulates cavity (5)；Cooling medium
Circulation in cavity in beam body crown wall (2), beam body side wall (3), beam body bottom wall (4), at cooling in the high temperature environment
Beam body (1)；Beam body (1) is provided with fuel channel (13), and fuel channel (13) is equipped with fuel nozzle (16)；Beam body side wall (3) is set
Having comburent air duct (15), comburent air duct (15) is connect with beam body side wall inner wall (9), beam body side wall outer wall (10), with
Air duct (14) connection；Fuel nozzle (16) and comburent air duct (16) constitute burner (17)；Burner (17) can be in beam
The unilateral side of side wall (3) opens up, and can also open up in bilateral；Beam body side between beam body crown wall bottom plate (6) and burner (17)
Wall (3) is equipped with cooling air pipeline (18) or cooling air pipeline (18) is provided with the surrounding of burner (17), cooling air
Pipeline (18) is connect with beam body side wall inner wall (9), beam body side wall outer wall (10), is connected to air duct (14)；Cooling air pipe
Road (18) can be an entirety, discrete can also be distributed, and Fig. 2 is monoblock type cooling air pipeline (18) on T-type burning beam
Embodiment, the cooling air pipeline (18) of several burners (17) corresponding monoblock type jointly equally can be by entirety
Formula cooling air pipe applications are on rectangle or trapezoidal burning beam；Fig. 3 is discrete type cooling air pipeline (18) in T-type burning beam
On embodiment, monoblock type cooling air pipeline (18) can equally be applied on rectangle or trapezoidal burning beam, discrete point
The cooling air pipeline (18) of cloth can be corresponded with burner (17), can also be with the corresponding multiple cooling airs of a burner (17)
Pipeline (18)；The cross section of beam body (1) can be "T"-shaped, rectangle or trapezoidal.
Working principle of the present invention is as follows:
Air enters the air duct that back bottom plate (6), beam body side wall inner wall (9), beam body bottom inner wall (11) limit
(14) be divided into two parts in enter in the body of limekiln, a part as help combustion air by opening up on beam body side wall (3)
Comburent air duct (15) enters, and a part is as tempering air by between beam body crown wall bottom plate (6) and burner (17)
Beam body side wall (3) on the cooling air pipeline (18) that opens up enter；Beam body (1) is provided with fuel channel (13), fuel channel
(13) fuel nozzle (16) are equipped with, fuel is sprayed by fuel nozzle (16) to comburent air duct (15), fuel nozzle (16)
It is collectively formed burner (17) with comburent air duct (15), it is anti-that combustion chemistry occurs for the combustion air and fuel that burner (17) sprays
It answers, forms the flame of high temperature, for calcining the raw limestone to fall from kiln top；Since beam body (1) is largely at lime
The intracorporal high-temperature calcination area of kiln, beam body crown wall (2), beam body side wall (3), beam body bottom wall (4) are hollow structure, inside set cooling medium
It circulates cavity (5), cooling medium circulation wherein takes away the heat of beam body (1), carries out cooling protection to beam body (1).
Fig. 4 is a kind of working principle diagram of the burning girder for limekiln with air-cooling apparatus provided by the invention, from
The cooling air stream (20) that cooling air pipeline (18) sprays can to cooling down outside beam body crown wall (2), and can suppress from
Expansion of the flame (21) that burner (17) sprays to beam body crown wall (2) direction, prevents flame (21) from directly touching the part；And it can
The particulate matter carried secretly in air-flow to weaken burner (17) ejection is to the radial souring of the part, especially beam body crown wall bottom
Side plate junction (19), reduce to these regions wash away and ablation effect, improve the service life of burning beam.
Claims (6)
1. a kind of burning girder for limekiln with air-cooling apparatus including beam body (1) and is located at beam body (1) internal combustion
Pipe material (13), burner (17), wherein beam body (1) defines air duct (14)；Burner (17) includes on fuel channel (13)
The fuel nozzle (16) of setting and it is provided with being connected on beam body (1) corresponding fuel nozzle (16) position with air duct (14)
Logical comburent air duct (15), it is characterised in that: above comburent air duct (15) in beam body (1), offer and air
The cooling air pipeline (18) that channel (14) is connected.
2. a kind of burning girder for limekiln with air-cooling apparatus as described in claim 1, it is characterised in that: described
Beam body (1) is made of beam body crown wall (2), beam body side wall (3), beam body bottom wall (4), beam body crown wall (2), beam body side wall (3), beam body
Bottom wall (4) is all or part of to be set as hollow structure, and cooling medium circulation cavity (5) is defined on the inside of wall.
3. a kind of burning girder for limekiln with air-cooling apparatus as claimed in claim 2, it is characterised in that: described
Burner (17) is opened up in the unilateral side of beam body side wall (3), or is opened up in bilateral.
4. a kind of burning girder for limekiln with air-cooling apparatus as described in claim 1, it is characterised in that: described
Cooling air pipeline (18) is an entirety or discrete distribution.
5. a kind of burning girder for limekiln with air-cooling apparatus as described in claim 1, it is characterised in that: described
The cross section of beam body (1) is "T"-shaped, rectangle or trapezoidal.
6. a kind of burning girder for limekiln with air-cooling apparatus as claimed in claim 2, it is characterised in that: described
Beam body crown wall (2) wall surface is welded by muti-piece metal plate, or is formed by one piece of metal plate is moulded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510021873.5A CN104496208B (en) | 2015-01-16 | 2015-01-16 | A kind of burning girder for limekiln with air-cooling apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510021873.5A CN104496208B (en) | 2015-01-16 | 2015-01-16 | A kind of burning girder for limekiln with air-cooling apparatus |
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| Publication Number | Publication Date |
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| CN104496208A CN104496208A (en) | 2015-04-08 |
| CN104496208B true CN104496208B (en) | 2019-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105948541B (en) * | 2016-07-06 | 2018-05-01 | 石家庄新华能源环保科技股份有限公司 | A kind of gas-cooled burning beam |
| CN106045342B (en) * | 2016-07-25 | 2019-03-29 | 石家庄新华能源环保科技股份有限公司 | A kind of adiabatic combustion beam |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696803A (en) * | 2009-10-30 | 2010-04-21 | 贾会平 | T-shaped burning beam |
| CN201626917U (en) * | 2010-01-19 | 2010-11-10 | 杨霞 | Combustion beam for lime kiln |
| CN201660562U (en) * | 2010-03-30 | 2010-12-01 | 杨霞 | Combustion beam for lime kiln |
| CN204125377U (en) * | 2014-08-07 | 2015-01-28 | 石家庄新华能源环保科技股份有限公司 | A kind of T-shaped burning beam |
-
2015
- 2015-01-16 CN CN201510021873.5A patent/CN104496208B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696803A (en) * | 2009-10-30 | 2010-04-21 | 贾会平 | T-shaped burning beam |
| CN201626917U (en) * | 2010-01-19 | 2010-11-10 | 杨霞 | Combustion beam for lime kiln |
| CN201660562U (en) * | 2010-03-30 | 2010-12-01 | 杨霞 | Combustion beam for lime kiln |
| CN204125377U (en) * | 2014-08-07 | 2015-01-28 | 石家庄新华能源环保科技股份有限公司 | A kind of T-shaped burning beam |
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Effective date of registration: 20211117 Address after: 215200 north side of building e, No. 1868 Guangming Road, Jiangling street, Wujiang District, Suzhou City, Jiangsu Province Patentee after: Suzhou Langxin Intelligent Technology Co.,Ltd. Address before: 606, West building, Kequn building, No. 30 Xueyuan Road, Haidian District, Beijing 100083 Patentee before: BEIJING LAPSEN ENERGY ENVIRONMENTAL TECHNOLOGY CO.,LTD. |