CN109095794A - Limekiln air inlet system - Google Patents
Limekiln air inlet system Download PDFInfo
- Publication number
- CN109095794A CN109095794A CN201811086035.6A CN201811086035A CN109095794A CN 109095794 A CN109095794 A CN 109095794A CN 201811086035 A CN201811086035 A CN 201811086035A CN 109095794 A CN109095794 A CN 109095794A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- exhaust gas
- kiln body
- air
- limekiln
- Prior art date
- 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.)
- Pending
Links
- 239000007789 gas Substances 0.000 claims abstract description 72
- 238000002485 combustion reaction Methods 0.000 claims abstract description 38
- 239000002912 waste gas Substances 0.000 claims abstract description 34
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract description 9
- 235000011941 Tilia x europaea Nutrition 0.000 abstract description 9
- 239000004571 lime Substances 0.000 abstract description 9
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000003570 air Substances 0.000 description 35
- 239000000428 dust Substances 0.000 description 7
- 230000008676 import Effects 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000003837 high-temperature calcination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2/00—Lime, magnesia or dolomite
- C04B2/10—Preheating, burning calcining or cooling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The present invention relates to technical field of steel production, more particularly to limekiln air inlet system, it includes limekiln air inlet system, it includes limekiln, air-intake device and heat exchanger, the limekiln includes kiln body, lower suction beam, burning beam and kiln body Waste gas outlet, the burning beam is equipped with burning beam burner, the lower suction beam is equipped with lower suction beam Waste gas outlet, the air-intake device includes combustion fan, and the air that combustion fan introduces enters burning beam burner after heat exchanger and lower suction beam exhaust gas and kiln body exhaust gas carry out heat exchange.Device provided by the invention had not only been able to satisfy the requirement of burning beam burner intake air temperature, but also the requirement for making the temperature of exhaust gas reach deduster inlet temperature simultaneously, reduced the temperature of exhaust gas without additional temperature adjustment blower fan, at low cost and prevent lime dross.
Description
Technical field
The present invention relates to technical field of steel production more particularly to limekiln air inlet systems.
Background technique
The equipment that limekiln forms active lime as a kind of pair of lime stone progress high-temperature calcination, produces in smelting iron and steel
Technical field is used widely, and limekiln in the prior art is generally used the exhaust gas of lower suction beam as combustion fan
Then import wind is recycled with temperature adjustment blower fan and kiln body exhaust gas by entering burning beam burner after heat exchange again, use is this
Mode, the comparision contents into oxygen in the gas of burning beam burner are low and contain a certain amount of dust, be easy to cause limekiln
Periodically hanging forms lime dross, and not only increase the operation power of combustion fan, is also additionally required a tune
Warm blower improves purchase cost and operation cost so that the temperature of exhaust gas reaches the requirement of deduster inlet temperature.
Summary of the invention
Technical problem to be solved by the invention is to provide at low cost and prevent the limekiln air inlet system of lime dross.
The present invention is to be achieved by the following technical programs:
Limekiln air inlet system comprising limekiln, air-intake device and heat exchanger, the limekiln include kiln body, lower suction
Gas beam, burning beam and kiln body Waste gas outlet, the burning beam are equipped with burning beam burner, and the lower suction beam is equipped with lower suction beam
Waste gas outlet, the air-intake device include combustion fan, and the air that combustion fan introduces is through heat exchanger and lower suction beam exhaust gas
And enter burning beam burner after the progress heat exchange of kiln body exhaust gas.
Further, heat exchanger includes First Heat Exchanger and the second heat exchanger, the First Heat Exchanger be equipped with kiln body exhaust gas into
Mouth and kiln body waste gas outlet, second heat exchanger are equipped with total exhaust gas inlet, total waste gas outlet, combustion air inlet and combustion-supporting sky
Gas outlet, the combustion fan are equipped with air inlet and exhaust outlet, the combustion air of the exhaust outlet of combustion fan and the second heat exchanger
Import is connected by pipeline, and the combustion air exports of the second heat exchanger are connected with burning beam burner by pipeline, and kiln body is useless
Gas discharge outlet is connected with the kiln body exhaust gas inlet of First Heat Exchanger by pipeline, and the kiln body waste gas outlet of First Heat Exchanger is under
Suction beam Waste gas outlet is connected by exhaust gas heat transfer manifold with total exhaust gas inlet of the second heat exchanger.
Further, limekiln air inlet system further includes emission-control equipment, and the emission-control equipment includes bag-type dust
Total waste gas outlet of device and chimney, the second heat exchanger is connected with the exhaust gas inlet of bag filter by pipeline, bag-type dust
The waste gas outlet of device is connected with the exhaust gas inlet of chimney by pipeline.
Beneficial effects of the present invention
Combustion fan import wind is changed to directly use air by limekiln air inlet system, the air warp that combustion fan introduces
Heat exchanger and lower suction beam exhaust gas and kiln body exhaust gas carry out entering burning beam burner after heat exchange improves temperature, and supply limekiln makes
With being not only able to satisfy the requirement of burning beam burner intake air temperature, but also the temperature of exhaust gas is made to reach wanting for deduster inlet temperature simultaneously
It asks, the temperature of exhaust gas, and current reduction when combustion fan normal operation is reduced without additional temperature adjustment blower fan, reduces enterprise
The purchase cost and operation cost of industry, and enter the gas oxygen content height of burning beam burner and be free of the impurity such as dust, no
It will cause limekiln periodically hanging, avoid lime dross phenomenon, improve product quality.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is prior art construction schematic diagram；
1. kiln body in figure, 2. lower suction beams, 3. burning beams, 4. kiln body Waste gas outlets, 5. First Heat Exchangers, 6. second change
Hot device, 7. bag filters, 8. combustion fans, 9. chimneys.
Specific embodiment
Limekiln air inlet system comprising limekiln, air-intake device and heat exchanger, the limekiln include kiln body 1, lower suction
Gas beam 2, burning beam 3 and kiln body Waste gas outlet 4, the burning beam are equipped with burning beam burner, and the lower suction beam is equipped with lower suction
Gas beam Waste gas outlet, the air-intake device include combustion fan 8, and the air that combustion fan introduces is through heat exchanger and lower suction beam
Exhaust gas and kiln body exhaust gas enter burning beam burner after carrying out heat exchange.
Further, heat exchanger includes First Heat Exchanger 5 and the second heat exchanger 6, and the First Heat Exchanger is equipped with kiln body exhaust gas
Import and kiln body waste gas outlet, second heat exchanger are equipped with total exhaust gas inlet, total waste gas outlet, combustion air inlet and combustion-supporting
Air outlet slit, the combustion fan are equipped with air inlet and exhaust outlet, the combustion-supporting sky of the exhaust outlet of combustion fan and the second heat exchanger
Gas import is connected by pipeline, and the combustion air exports of the second heat exchanger are connected with burning beam burner by pipeline, kiln body
Waste gas outlet is connected with the kiln body exhaust gas inlet of First Heat Exchanger by pipeline, the kiln body waste gas outlet of First Heat Exchanger with
Lower suction beam Waste gas outlet is connected by exhaust gas heat transfer manifold with total exhaust gas inlet of the second heat exchanger.
Further, limekiln air inlet system further includes emission-control equipment, and the emission-control equipment includes bag-type dust
Total waste gas outlet of device 7 and chimney 9, the second heat exchanger is connected with the exhaust gas inlet of bag filter by pipeline, and cloth bag removes
The waste gas outlet of dirt device is connected with the exhaust gas inlet of chimney by pipeline.
Due to limekiln air inlet system, combustion fan import wind is changed to directly to use air, the sky that combustion fan introduces
Gas carries out entering burning beam burner after heat exchange improves temperature through heat exchanger and lower suction beam exhaust gas and kiln body exhaust gas, supplies lime
Kiln uses, and has not only been able to satisfy the requirement of burning beam burner intake air temperature, but also the temperature of exhaust gas is made to reach deduster inlet temperature simultaneously
Requirement, reduce the temperature of exhaust gas without additional temperature adjustment blower fan, and current reduction when combustion fan runs well, reduce
The purchase cost and operation cost of enterprise, and the gas oxygen content for entering burning beam burner is high and miscellaneous without dust etc.
Matter not will cause limekiln periodically hanging, avoids lime dross phenomenon, improves product quality.
Heat exchanger includes First Heat Exchanger and the second heat exchanger, and the First Heat Exchanger is equipped with kiln body exhaust gas inlet and kiln body
Waste gas outlet, second heat exchanger are equipped with total exhaust gas inlet, total waste gas outlet, combustion air inlet and combustion air exports,
The combustion fan is equipped with air inlet and exhaust outlet, and the exhaust outlet of combustion fan and the combustion air inlet of the second heat exchanger pass through
Pipeline is connected, and the combustion air exports of the second heat exchanger are connected with burning beam burner by pipeline, kiln body Waste gas outlet
It is connected with the kiln body exhaust gas inlet of First Heat Exchanger by pipeline, the kiln body waste gas outlet of First Heat Exchanger and lower suction beam are useless
Gas discharge outlet is connected by exhaust gas heat transfer manifold with total exhaust gas inlet of the second heat exchanger, in this way, first by kiln body exhaust gas
Heat exchange cooling, which is carried out, through first heat exchanger is then mixed into the second heat exchanger with lower suction beam exhaust gas again and through combustion fan
After the air of introducing carries out heat exchange, the requirement that air meets burning beam burner intake air temperature is directly entered burning beam burner, gives up
The requirement that the temperature of gas reaches deduster inlet temperature enters deduster and is dusted, and reduces without additional temperature adjustment blower fan useless
The temperature of gas, reduces the purchase cost and operation cost of enterprise, and the gas oxygen content for entering burning beam burner it is high and
Without impurity such as dust, limekiln periodically hanging not will cause, avoid lime dross phenomenon, improve product quality.
Limekiln air inlet system further includes emission-control equipment, and the emission-control equipment includes bag filter and cigarette
Total waste gas outlet of chimney, the second heat exchanger is connected with the exhaust gas inlet of bag filter by pipeline, and bag filter gives up
Gas outlet is connected with the exhaust gas inlet of chimney by pipeline, and exhaust treatment system is arranged, deduster import is reached after exchanging heat
The exhaust gas of temperature, which enters in bag filter to be dusted processing and reach, carries out high altitude discharge through chimney after discharge standard, prevents sky
Gas pollution, protects ambient air quality.
In conclusion the limekiln air inlet system that the present invention is protected, had both been able to satisfy wanting for burning beam burner intake air temperature
It asks, and the temperature of exhaust gas is made to reach the requirement of deduster inlet temperature simultaneously, reduce exhaust gas without additional temperature adjustment blower fan
Temperature, it is at low cost and prevent lime dross.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (3)
1. limekiln air inlet system, which is characterized in that including limekiln, air-intake device and heat exchanger, the limekiln includes kiln
Body, lower suction beam, burning beam and kiln body Waste gas outlet, the burning beam are equipped with burning beam burner, and the lower suction beam is equipped with
Lower suction beam Waste gas outlet, the air-intake device include combustion fan, and the air that combustion fan introduces is through heat exchanger and lower suction
Gas beam exhaust gas and kiln body exhaust gas enter burning beam burner after carrying out heat exchange.
2. limekiln air inlet system according to claim 1, which is characterized in that the heat exchanger include First Heat Exchanger and
Second heat exchanger, the First Heat Exchanger are equipped with kiln body exhaust gas inlet and kiln body waste gas outlet, and second heat exchanger is equipped with total
Exhaust gas inlet, total waste gas outlet, combustion air inlet and combustion air exports, the combustion fan are equipped with air inlet and exhaust
Mouthful, the exhaust outlet of combustion fan is connected with the combustion air inlet of the second heat exchanger by pipeline, the second heat exchanger it is combustion-supporting
Air outlet slit is connected with burning beam burner by pipeline, and the kiln body exhaust gas inlet of kiln body Waste gas outlet and First Heat Exchanger is logical
Piping is connected, and the kiln body waste gas outlet of First Heat Exchanger and lower suction beam Waste gas outlet pass through exhaust gas heat transfer manifold and the
Total exhaust gas inlet of two heat exchangers is connected.
3. limekiln air inlet system according to claim 1, which is characterized in that it further include emission-control equipment, it is described useless
Flash Gas Compression Skid System includes bag filter and chimney, and total waste gas outlet of the second heat exchanger and the exhaust gas inlet of bag filter are logical
Piping is connected, and the waste gas outlet of bag filter is connected with the exhaust gas inlet of chimney by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811086035.6A CN109095794A (en) | 2018-09-18 | 2018-09-18 | Limekiln air inlet system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811086035.6A CN109095794A (en) | 2018-09-18 | 2018-09-18 | Limekiln air inlet system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109095794A true CN109095794A (en) | 2018-12-28 |
Family
ID=64866560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811086035.6A Pending CN109095794A (en) | 2018-09-18 | 2018-09-18 | Limekiln air inlet system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109095794A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112524958A (en) * | 2021-01-15 | 2021-03-19 | 广西柳钢新材料科技有限公司 | Negative pressure air inlet cooling device for suspension cylinder of Maerz kiln |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203754606U (en) * | 2014-03-19 | 2014-08-06 | 石家庄圣宏达热能工程技术有限公司 | Inverted type calcination lime kiln |
| CN204224467U (en) * | 2014-09-22 | 2015-03-25 | 中盐吉兰泰盐化集团有限公司 | Limestone kiln and system for producing calcium carbide |
| CN209081746U (en) * | 2018-09-18 | 2019-07-09 | 盐城市联鑫钢铁有限公司 | Limekiln air inlet system |
-
2018
- 2018-09-18 CN CN201811086035.6A patent/CN109095794A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203754606U (en) * | 2014-03-19 | 2014-08-06 | 石家庄圣宏达热能工程技术有限公司 | Inverted type calcination lime kiln |
| CN204224467U (en) * | 2014-09-22 | 2015-03-25 | 中盐吉兰泰盐化集团有限公司 | Limestone kiln and system for producing calcium carbide |
| CN209081746U (en) * | 2018-09-18 | 2019-07-09 | 盐城市联鑫钢铁有限公司 | Limekiln air inlet system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112524958A (en) * | 2021-01-15 | 2021-03-19 | 广西柳钢新材料科技有限公司 | Negative pressure air inlet cooling device for suspension cylinder of Maerz kiln |
| CN112524958B (en) * | 2021-01-15 | 2022-07-05 | 广西柳钢新材料科技有限公司 | Negative pressure air inlet cooling device for suspension cylinder of Maerz kiln |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181228 |
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| WD01 | Invention patent application deemed withdrawn after publication |