CN203754606U - Inverted type calcination lime kiln - Google Patents
Inverted type calcination lime kiln Download PDFInfo
- Publication number
- CN203754606U CN203754606U CN201420125337.0U CN201420125337U CN203754606U CN 203754606 U CN203754606 U CN 203754606U CN 201420125337 U CN201420125337 U CN 201420125337U CN 203754606 U CN203754606 U CN 203754606U
- Authority
- CN
- China
- Prior art keywords
- burner
- kiln
- inverted
- interchanger
- kiln body
- 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.)
- Expired - Lifetime
Links
- 235000008733 Citrus aurantifolia Nutrition 0.000 title claims abstract description 34
- 235000011941 Tilia x europaea Nutrition 0.000 title claims abstract description 34
- 239000004571 lime Substances 0.000 title claims abstract description 34
- 238000001354 calcination Methods 0.000 title claims abstract description 33
- 239000002699 waste material Substances 0.000 claims description 21
- 239000007789 gas Substances 0.000 claims description 11
- 238000013022 venting Methods 0.000 claims description 9
- 239000000446 fuel Substances 0.000 claims description 7
- 239000002956 ash Substances 0.000 claims description 6
- 239000010881 fly ash Substances 0.000 claims description 4
- 239000002737 fuel gas Substances 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 239000002912 waste gas Substances 0.000 abstract description 4
- 235000019738 Limestone Nutrition 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000006028 limestone Substances 0.000 description 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005261 decarburization Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005262 decarbonization Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills
Landscapes
- Furnace Details (AREA)
Abstract
The utility model discloses an inverted type calcination lime kiln, belonging to the field of lime calcination equipment. The structure comprises a kiln body (1) and upper-layer burners (2) and lower-layer burners (3) which are arranged in the kiln body (1). The inverted type calcination lime kiln is characterized in that the number of the upper-layer burners (2) is less than that of the lower-layer burners (3); a lower air-suction beam (12) is arranged below each lower-layer burner (3) in the kiln body (1); the lower air-suction beam (12) is communicated with a lower waste gas pipe (13); the exhaust port of the lower waste gas pipe (13) is formed in the outer part of the kiln body (1). The inverted type calcination lime kiln disclosed by the utility model adopts an arrangement form that the number of the upper-layer burners is more than that of the lower-layer burners, meets the calcination mechanism of lime, improves the resource utilization rate, and increases the economic benefits of lime products.
Description
Technical field
The utility model relates to a kind of lime calcining equipment, especially a kind of inverted calcination lime burner.
Background technology
Existing beam-type limekiln be digest and assimilate foreign technology through production domesticization after, using low heat value industrial gas as combustion gas, using air as combustion-supporting gas, carry out unslaked lime roasting.Mainly by storing band, preheating zone, calcining zone, 4 bands such as cooling zone form, its core technology is positioned at the two-layer built-in combustion beam of calcining zone, two-layer beam adopts upper strata beam quantity to arrange more than lower floor's beam mode, as the upper strata beam of 150t/d is arranged 3 cover beams, lower floor's beam is arranged 2 cover beams, because the effective combustiblecomponents content in low heat value industrial gas is lower, its combustionvelocity is slow, flame temperature is low, upper strata beam is more than lower floor's beam, the result causing is: Wingdale is through being preheated to after 900 ℃, CO2 starts to separate out from Wingdale, along with Wingdale is displaced downwardly to upper strata beam, calcining temperature is to the highest, move to down between lower floor's beam again, because underbeam can not provide enough heat energy, and the sucking-off along with the outer CO2 of Wingdale, progressively to internal layer, develop, and internal layer CO2 separate out need to be higher maturing temperature, therefore, while causing lime-roasting, the possibility of raw burn is very high, the fact has also proved this point, employing compared with the raw burn index of low calorie fuels generally more than 12%, all can not be less than 8% design requirements.The increase of raw burn causes very large resource and energy dissipation, as loss per ton steel lime increases 20kg.Therefore, existing limestone kiln calcining temperature is unreasonable, low in economic efficiency.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of inverted calcination lime burner that improves the index of lime calcining and improve resource utilization.
For solving the problems of the technologies described above, technical solution adopted in the utility model is:
An inverted calcination lime burner, structure comprises kiln body 1 and is arranged on upper strata burner 2 and the lower floor's burner 3 in kiln body 1, it is characterized in that: the quantity of described upper strata burner is less than the quantity of lower floor's burner.
Wherein, below the interior lower floor of kiln body 1 burner 3, be provided with lower suction beam 12, lower suction beam 12 is connected with lower waste pipe 13, and the venting port of lower waste pipe 13 is arranged on the outside of kiln body 1.
Wherein, the venting port of lower waste pipe 13 is connected to the hot air intake of interchanger 14 under kiln, and under kiln, the cold air outlet of interchanger 14 is connected to the inlet mouth of waste pipe 7; Under kiln, the cold fuel gas inlet of interchanger 14 connects fuel tube 6, and under kiln, the hot gas outlet of interchanger 14 is connected to respectively upper strata burner 2 and lower floor's burner 3 by pipeline.
Wherein, the top in kiln body 1 is provided with suction beam, and upper suction beam is connected to the hot air intake of interchanger 8 by pipeline, and the cold air outlet of interchanger 8 is connected to the inlet mouth of waste pipe 7; The cold wind import of interchanger 8 is connected to blower fan, and the hot-blast outlet of interchanger 8 is connected to respectively upper strata burner 2 and lower floor's burner 3 by pipeline.
Wherein, the venting port of waste pipe 7 is realized gas shaft 11 by fly-ash separator 9 and induced draft fan 10 and is joined.
Wherein, described kiln body lower end sets out apparatus for ash.Described kiln body one side arranges feeding device.
Wherein, upper strata burner is 3 covers, and lower floor's burner is 4 covers.
Wherein, upper strata burner is 5 covers, and lower floor's burner is 6 covers.
The beneficial effect that adopts technique scheme to produce is:
1, in kiln, go out calcining zone spent air temperture lower, in kiln waste gas residual heat after preheating zone and material heat exchange, be discharged to kiln outward time temperature low, more traditional beam-type limekiln is low 20 ℃～50 ℃;
2, kiln temperature distributes rationally, and fuel availability is high, and unit product hear rate is low, and the low 200kJ of more traditional beam-type limekiln～300kJ/kg. ash, reduces waste of fuel, energy-conserving and environment-protective;
3, during the decarburization of Wingdale core in high-temperature zone, limestone kiln, decarbonization rate is fast, decarburization is clean, Activity of Lime is high, raw burn rate is low, lime quality is good;
4, the lower suction beam of limestone kiln configuration, lime outlet in limestone kiln is negative pressure state, ash discharge temperature is low, dust indiffusion, post Working environment is clean;
5, can adapt to quick burning, improve kiln and hold utilization ratio, reduce construction investment, save national resources.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of the utility model.
In figure: 1, kiln body; 2, upper strata burner; 3, lower floor's burner; 4, ash discharging gear; 5, feeding device; 6, fuel tube; 7, waste pipe; 8, interchanger; 9, fly-ash separator; 10, induced draft fan; 11, gas shaft; 12, lower suction beam; 13 times waste pipes; 14, interchanger under kiln.
Embodiment
Below in conjunction with Fig. 1 and embodiment, the utility model is described in further detail.
Referring to accompanying drawing, a kind of inverted calcination lime burner of the present utility model, structure comprises kiln body 1 and is arranged on upper strata burner 2 and the lower floor's burner 3 in kiln body 1, the quantity of described upper strata burner is less than the quantity of lower floor's burner.In embodiment, upper strata burner is 3 covers, and lower floor's burner is 4 covers.In another embodiment, upper strata burner is 5 covers, and lower floor's burner is 6 covers.
Below the interior lower floor of kiln body 1 burner 3, be provided with lower suction beam 12, lower suction beam 12 is connected with lower waste pipe 13, and the venting port of lower waste pipe 13 is arranged on the outside of kiln body 1.The venting port of lower waste pipe 13 is connected to the hot air intake of interchanger 14 under kiln, and under kiln, the cold air outlet of interchanger 14 is connected to the inlet mouth of waste pipe 7; Under kiln, the cold fuel gas inlet of interchanger 14 connects fuel tube 6, and under kiln, the hot gas outlet of interchanger 14 is connected to respectively upper strata burner 2 and lower floor's burner 3 by pipeline.Top in kiln body 1 is provided with suction beam, and upper suction beam is connected to the hot air intake of interchanger 8 by pipeline, and the cold air outlet of interchanger 8 is connected to the inlet mouth of waste pipe 7; The cold wind import of interchanger 8 is connected to blower fan, and the hot-blast outlet of interchanger 8 is connected to respectively upper strata burner 2 and lower floor's burner 3 by pipeline.
The venting port of waste pipe 7 is realized gas shaft 11 by fly-ash separator 9 and induced draft fan 10 and is joined.In kiln body lower end, set out apparatus for ash, in kiln body one side, feeding device is set.
Principle of work: a kind of inverted calcination lime burner of the present utility model, its arrangement form adopts upper strata burner more than the form of lower floor's burner, for example burner employing 3 covers, lower floor's burner adopt 4 covers to 200t/d kiln at the middle and upper levels, utilize this inverted burner to carry out lime calcining, the Incineration Mechanism that meets lime, makes calcining temperature meet CO in Wingdale
2the requirement of separating out, more approaching Wingdale heart portion more needs higher calcining temperature, along with CO in Wingdale
2constantly be sucked out, require more heat, higher maturing temperature to guarantee normally separating out of CO2, complete the calcining of lime, improve resource utilization, the index raw burn that improves lime calcining reaches in 6%, and that controls well remains in 4%, promotes the economic benefit of lime product.The lime type of cooling adopts lower suction beam technology, with the high-temp waste gas of suction beam sucking-off at present, for preheating gas or combustion air, arrives energy-conservation object, significantly improves the utilization ratio of combustion gas resource and promotes the economic benefit in limestone kiln.
Foregoing description only proposes as the enforceable technical scheme of the utility model, not as the Single restriction condition to its technical scheme itself.
Claims (9)
1. an inverted calcination lime burner, structure comprises kiln body (1) and is arranged on upper strata burner (2) and the lower floor's burner (3) in kiln body (1), it is characterized in that: the quantity of described upper strata burner (2) is less than the quantity of lower floor's burner (3).
2. a kind of inverted calcination lime burner according to claim 1, it is characterized in that: in kiln body (1), the below of lower floor's burner (3) is provided with lower suction beam (12), lower suction beam (12) is connected with lower waste pipe (13), and the venting port of lower waste pipe (13) is arranged on the outside of kiln body (1).
3. inverted calcination lime burner according to claim 2, is characterized in that: the venting port of lower waste pipe (13) is connected to the hot air intake of interchanger under kiln (14), and the cold air outlet of interchanger under kiln (14) is connected to the inlet mouth of waste pipe (7); The cold fuel gas inlet of interchanger under kiln (14) connects fuel tube (6), and the hot gas outlet of interchanger under kiln (14) is connected to respectively upper strata burner (2) and lower floor's burner (3) by pipeline.
4. a kind of inverted calcination lime burner according to claim 1, it is characterized in that: the top in kiln body (1) is provided with upper suction beam, upper suction beam is connected to the hot air intake of interchanger (8) by pipeline, the cold air outlet of interchanger (8) is connected to the inlet mouth of waste pipe (7); The cold wind import of interchanger (8) is connected to blower fan, and the hot-blast outlet of interchanger (8) is connected to respectively upper strata burner (2) and lower floor's burner (3) by pipeline.
5. according to a kind of inverted calcination lime burner described in claim 1 or 4, it is characterized in that: the venting port of waste pipe (7) is realized gas shaft (11) by fly-ash separator (9) and induced draft fan (10) and joined.
6. a kind of inverted calcination lime burner according to claim 1, is characterized in that: described kiln body (1) lower end sets out apparatus for ash (4).
7. a kind of inverted calcination lime burner according to claim 1, is characterized in that: described kiln body (1) one side arranges feeding device (5).
8. a kind of inverted calcination lime burner according to claim 1, is characterized in that: upper strata burner (2) is 3 covers, and lower floor's burner (3) is 4 covers.
9. a kind of inverted calcination lime burner according to claim 1, is characterized in that: upper strata burner (2) is 5 covers, and lower floor's burner (3) is 6 covers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420125337.0U CN203754606U (en) | 2014-03-19 | 2014-03-19 | Inverted type calcination lime kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420125337.0U CN203754606U (en) | 2014-03-19 | 2014-03-19 | Inverted type calcination lime kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203754606U true CN203754606U (en) | 2014-08-06 |
Family
ID=51249905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420125337.0U Expired - Lifetime CN203754606U (en) | 2014-03-19 | 2014-03-19 | Inverted type calcination lime kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203754606U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109095794A (en) * | 2018-09-18 | 2018-12-28 | 盐城市联鑫钢铁有限公司 | Limekiln air inlet system |
-
2014
- 2014-03-19 CN CN201420125337.0U patent/CN203754606U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109095794A (en) * | 2018-09-18 | 2018-12-28 | 盐城市联鑫钢铁有限公司 | Limekiln air inlet system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 050035 Shijiazhuang province high tech Zone, Tianshan Road, No., office building, layer 36, 7 Patentee after: SHIJIAZHUANG SHENGHONGDA THERMAL ENGINEERING TECHNOLOGY Corp.,Ltd. Address before: 050035 Shijiazhuang high tech Zone, Hebei, Tianshan Road, No. 36 Patentee before: SHIJIAZHUANG SHENGHONGDA THERMAL ENERGY ENGINEERING TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140806 |
|
| CX01 | Expiry of patent term |