CN204125378U - A kind of burning girder for limekiln - Google Patents
A kind of burning girder for limekiln Download PDFInfo
- Publication number
- CN204125378U CN204125378U CN201420440793.4U CN201420440793U CN204125378U CN 204125378 U CN204125378 U CN 204125378U CN 201420440793 U CN201420440793 U CN 201420440793U CN 204125378 U CN204125378 U CN 204125378U
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- CN
- China
- Prior art keywords
- fuel
- burning
- thermal oil
- fuel conduit
- beam body
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a kind of burning girder for limekiln, comprises the outlet of beam body, thermal oil entrance and thermal oil, is provided with heat-eliminating medium cavity between the outer wall of beam body and inwall, and thermal oil entrance is connected with heat-eliminating medium cavity respectively with thermal oil outlet.Beam body is concave structure, is made up of two fuel channels and air passageways, and each fuel channel bottom is provided with 10 burner spouts, is provided with fuel conduit in fuel channel, and fuel conduit is shunt structure or closes line structure, and fuel conduit is connected to burner.Air passageways is provided with air jet.The cross section of fuel conduit is circular or rectangle.The utility model burning girder for limekiln is designed to concave structure, after making fuel gas and preheating, air enters combustion-supporting burning in kiln body through different passages respectively, after avoiding preheating, high temperature air burns out beam body inner member, is conducive to improving the temperature of combustion of burning beam and the calcining effect of Wingdale.
Description
Technical field
The utility model belongs to technical field of combustion equipment, relates to a kind of burning beam of industrial furnace, is specifically related to a kind of burning beam of concave structure.
Background technology
By the new technology that beam-type limekiln calcined limestone is lime production.Beam-type limekiln has the advantages such as energy consumption is low, lime product quality is good, throughput is strong, turndown ratio is large, is widely used in the lime production of the purposes such as metallurgy, chemical industry.Calcining needs fuel to burn at calcining zone, releases heat heating calcined material.The decomposition temperature of Wingdale is about 900 DEG C, and calcining temperature is generally 1000 ~ 1200 DEG C.For reaching calcining temperature, producing qualified lime, needing the fuel of certain calorific value.Low calorie fuels burning does not reach the temperature of requirement, and Wingdale just can not decompose; Or temperature is low, decomposition of limestone is incomplete, causes the ropy problem of raw burn, lime product.In smelter production process, produce a large amount of blast furnace gases, be valuable fuel source, the calorific value of blast furnace gas is 3000 ~ 3400KJ, because calorific value is low, can not be directly used in calcined limestone, and a large amount of low calorie fuels can not be fully used.Produce lime also to need to purchase high performance fuel, cause the wasting of resources, affect economic benefit.
Authorization Notice No. is that the utility model patent of CN203144294U discloses a kind of Two-cuff Technique burning beam-type limekiln.Limestone kiln is provided with thermophore, combustion chamber and two-layer burning beam, and burning beam is made up of air combustion beam and fuel gas buring beam respectively.Thermophore and combustion chamber lay respectively at the two ends of air combustion beam and fuel gas buring beam.This patent carries out preheating by thermophore to combustion air and combustion gas, and the combustion air after preheating and fuel gas enter calcining zone respectively by air combustion beam and fuel gas buring beam and carries out burning calcined limestone material, improve the temperature of combustion of low calorie fuels.But the high temperature air after preheating enters beam body, easily burn out beam body inner member, affect result of use and the work-ing life of burning beam.
Utility model content
The purpose of this utility model is to provide a kind of burning girder for limekiln, by the concave structure of burning beam, after making fuel gas and preheating, air enters combustion-supporting burning in kiln body through different passages respectively, avoids burning out beam body inner member, improves the combustion efficacy of low calorie fuels.
The utility model burning girder for limekiln, comprises the outlet of beam body, thermal oil entrance and thermal oil, is provided with heat-eliminating medium cavity between the outer wall of beam body and inwall, and thermal oil entrance is connected with heat-eliminating medium cavity respectively with thermal oil outlet.Beam body is concave structure, is made up of two fuel channels and air passageways, and each fuel channel bottom is provided with 5 ~ 20 burners, and be provided with fuel conduit in fuel channel, fuel conduit is connected to burner.Air passageways is provided with air jet.
Fuel conduit is shunt structure or closes line structure, and during shunt structure, every root fuel conduit is connected with a burner; The fuel conduit of described conjunction line structure is made up of house steward and arm, and house steward is connected with burner by arm.The cross section of fuel conduit is circular or rectangle.
The utility model burning girder for limekiln is by being designed to concave structure, fuel enters burner ejection fuel from both sides fuel channel, combustion air sprays from median air passage lower air spout, combining combustion is mixed with fuel gas, after making fuel gas and preheating, air enters combustion-supporting burning in kiln body through different passages respectively, after avoiding preheating, high temperature air burns out beam body inner member, is conducive to improving the temperature of combustion of burning beam and the calcining effect of Wingdale.The utility model can be used for the limestone kiln of the limestone kiln of calcining materials by using low calorific value fuel, heat accumulating type limestone kiln, preheated air and fuel.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model burning girder for limekiln;
Fig. 2 is the A-A figure of Fig. 1;
Fig. 3 is that the A of Fig. 1 is to figure;
Fig. 4 is the structural representation of another embodiment of the utility model.
Wherein:
The outlet of 1-beam body, 2-thermal oil, 3-fuel channel, 4-thermal oil entrance, 5-burner, 6-heat-eliminating medium cavity, 7-fuel conduit, 8-air passageways, 9-baffle plate, 10-air jet, 11-house steward, 12-arm.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in detail.The utility model protection domain is not limited to embodiment, and those skilled in the art make the scope that any change also belongs to the utility model protection in the scope that claim limits.
Embodiment 1
The utility model burning girder for limekiln as shown in Figure 1, Figure 2 and Figure 3, comprise beam body 1, thermal oil entrance 4 and thermal oil outlet 2, be provided with heat-eliminating medium cavity 6 between the outer wall of beam body and inwall, thermal oil entrance is connected with heat-eliminating medium cavity respectively with thermal oil outlet.Burning beam is concave structure, is made up of two fuel channels 3 and air passageways 8, and each fuel channel bottom is provided with 10 burners 5, is provided with fuel conduit 7 in fuel channel, and fuel conduit 7 is shunt structure, and every root fuel conduit is connected with a burner 5.The cross section of fuel conduit is rectangle.Air passageways is provided with air jet 10, and air jet both sides are provided with baffle plate 9.Gas line is divided into two groups, is connected from two of beam body with fuel feed system, and air passageways is connected with air preheating system from two of beam body by pipeline, and thermal oil entrance is connected with Heat-conduction oil circulation system respectively with thermal oil outlet.
The operation scheme of the utility model burning girder for limekiln is, fuel gas enters burner 5 by fuel conduit 7, air after preheating enters air passageways 8 from beam body both sides, spray through air jet 10, the fuel gas mixed firing sprayed with burner, produces the high-temperature calcination limestone material of 1200 ~ 1600 DEG C.
Embodiment 2
As shown in Figure 4, fuel conduit 7, for closing line structure, is made up of house steward 11 and arm 12 another embodiment of the utility model, house steward is divided into two ends, enter fuel channel 3 from two of beam body respectively, straight tube is uniformly distributed on house steward, and house steward is connected with burner by arm.Other structure is identical with embodiment 1.
Claims (3)
1. a burning girder for limekiln, comprise beam body (1), thermal oil entrance (4) and thermal oil outlet (2), heat-eliminating medium cavity (6) is provided with between the outer wall of beam body and inwall, thermal oil entrance is connected with heat-eliminating medium cavity respectively with thermal oil outlet, it is characterized in that: described beam body is concave structure, be made up of two fuel channels (3) and air passageways (8), each fuel channel bottom is provided with 5 ~ 20 burners (5), be provided with fuel conduit (7) in fuel channel, fuel conduit is connected to burner; Described air passageways is provided with air jet (10).
2. burning girder for limekiln according to claim 1, is characterized in that: described fuel conduit (7) is for shunt structure or close line structure, and during shunt structure, every root fuel conduit is connected with a burner (5); The fuel conduit of described conjunction line structure is made up of house steward (11) and arm (12), and house steward is connected with burner by arm.
3. burning girder for limekiln according to claim 1, is characterized in that: the cross section of described fuel conduit (7) is circular or rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420440793.4U CN204125378U (en) | 2014-08-07 | 2014-08-07 | A kind of burning girder for limekiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420440793.4U CN204125378U (en) | 2014-08-07 | 2014-08-07 | A kind of burning girder for limekiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204125378U true CN204125378U (en) | 2015-01-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420440793.4U Expired - Fee Related CN204125378U (en) | 2014-08-07 | 2014-08-07 | A kind of burning girder for limekiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204125378U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104163580A (en) * | 2014-08-07 | 2014-11-26 | 石家庄新华能源环保科技股份有限公司 | Combustion beam for lime kiln |
-
2014
- 2014-08-07 CN CN201420440793.4U patent/CN204125378U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104163580A (en) * | 2014-08-07 | 2014-11-26 | 石家庄新华能源环保科技股份有限公司 | Combustion beam for lime kiln |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150128 Termination date: 20170807 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |