CN201217652Y - Coal gas burnt lime vertical kiln - Google Patents
Coal gas burnt lime vertical kiln Download PDFInfo
- Publication number
- CN201217652Y CN201217652Y CNU2008201073917U CN200820107391U CN201217652Y CN 201217652 Y CN201217652 Y CN 201217652Y CN U2008201073917 U CNU2008201073917 U CN U2008201073917U CN 200820107391 U CN200820107391 U CN 200820107391U CN 201217652 Y CN201217652 Y CN 201217652Y
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- kiln body
- coal gas
- kiln
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- gas
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- 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
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- Vertical, Hearth, Or Arc Furnaces (AREA)
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Abstract
The utility model discloses a gas-burning lime shaft kiln which comprises a kiln body. A feeding opening is arranged at the top part of the kiln body, a discharging opening is arranged at the bottom part of the kiln body, a preheating zone, a calcining zone and a chilling zone for finished products are arranged in the kiln body in sequence from top to bottom, a gas generator is arranged outside the kiln body, eight gas-fired burners are evenly arranged in the calcining zone of the kiln body, and the gas generator is connected with the gas-fired burners on the kiln body through a gas pipeline. The utility model has the advantages of simple structure, low construction cost, high lime activity strong adaptability of the fuel, and the like, is suitable for the steel and iron industry so as to achieve the purposes of improving the lime quality and saving the energy.
Description
Technical field
The utility model relates to a kind of kiln of lime calcining, specifically, relates to a kind of shaft furnace with the coal gas calcined lime.
Background technology
The limestone kiln is to be used for calcined limestone, generates the kiln of unslaked lime.Its technological process is, Wingdale and fuel are packed into and begun to decompose to 850 degree after the preheating of limestone kiln, finish calcining to 1200 degree, after cooling, unload outside the kiln discharge again.Promptly finish the production of unslaked lime product.Different kiln shapes has different preheatings, calcining, cools off and unloads grey mode.But it is identical that some technological principle is arranged, that is: raw materials quality height, and lime quality is good; The fuel value height, quantity consumption is few; Limestone granularity and calcination time are directly proportional; Unslaked lime activity degree and calcination time, calcining temperature is inversely proportional to.
The limestone kiln mainly is made up of kiln body, feeding device, distribution device, combustion unit, ash-discharging device, electrical equipment, instrument control device, cleaning apparatus etc.Multi-form limestone kiln, its structure formation and calcinated form are distinguished to some extent, and technical process is basic identical, but apparatus value has very big difference.Certainly result of use also is differentiated certainly.
Soil system limestone kiln is main force's kiln type that China's lime is fired, its resource, energy consumption height, and environmental pollution is heavy, and quality product is low.For a long time, seriously polluted, be one of environmental administration's industry of hitting energetically, firmly banning in recent years.Send out and to correct (2006) No. 596 document of industry and go out, what possess one of following situation is the limestone soil shaft furnace: disposable incinerating, the aspect ratio of kiln is less than 3, utilization coefficient less than 0.3, ton lime energy consumption greater than 150 kilograms of mark coals, no any flue gas and dust disposal structure and equipment, should ban.Thereby technological transformation, the especially environmental issue of soil system lime shaft kiln are very urgent, imperative.
The utility model content
The utility model technical issues that need to address just are to overcome the defective of existing soil system lime shaft kiln, and a kind of coal gas calcined lime shaft furnace is provided, and it has simple in structure, and is cheap, and hear rate is low, activity of lime height, advantage such as fuel tolerance is strong.Be applicable to steel industry, improve lime quality and purpose of energy saving to reach.
For addressing the above problem, the utility model adopts following technical scheme:
A kind of coal gas calcined lime of the utility model shaft furnace, comprise the kiln body, described kiln body top is a feeding mouth, kiln body bottom is a discharge port, be preheating zone, calcining zone and finished product cooling zone from top to bottom in the kiln body, described kiln is external to be provided with a producer gas generator, and described kiln body calcining zone evenly is provided with 8 coal gas burners, and described producer gas generator is connected with coal gas burner on the kiln body by gas line.
The utility model kiln body middle part calcining zone is provided with multiple tracks and burns beam, and burning beam action is to help the abundant burning of coal gas and guarantee that coal gas fully contacts with Wingdale.
The utility model has installed the ring cold-air duct additional at the cooling zone of kiln body bottom, is looped around kiln airduct on every side, and heated air participates in burning at calcining zone when acting as cool lime, thus save energy.
The utility model installs the annular heat switch additional on producer gas generator, purpose is to make full use of the heat that body of heater distributes, and combustion air is carried out preheating, fuel economy, the utilization ratio of raising coal.
The external thermal insulation layer that is provided with of described kiln.
The utility model kiln type is reasonable, reduced investment.Belong to power-saving kiln, unit consumption of fuel＜150kg marks coal, power consumption＜10 degree/ton lime.Can use 30 to 50mm fritter Wingdales, also can use 75 to 150mm relatively large Wingdales, can produce general building materials lime, also can produce quickened lime and select for use for industries such as building materials, metallurgy, chemical industry.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
As shown in Figure 1, a kind of coal gas calcined lime of the utility model shaft furnace, comprise kiln body 1, described kiln body top is a feeding mouth 2, kiln body bottom is a discharge port 3, is preheating zone 4, calcining zone 5 and finished product cooling zone 6 from top to bottom in the kiln body, and described kiln is external to be provided with a producer gas generator 7, described kiln body calcining zone evenly is provided with 8 coal gas burners 8, and described producer gas generator is connected with coal gas burner on the kiln body by gas line 9.
The utility model kiln body middle part calcining zone is provided with multiple tracks and burns beam 10, and burning beam action is to help the abundant burning of coal gas and guarantee that coal gas fully contacts with Wingdale.
The utility model has installed ring cold-air duct 11 additional at the cooling zone of kiln body bottom, and described ring cold-air duct connects blower fan 12, is looped around kiln airduct on every side, and heated air participates in burning at calcining zone when acting as cool lime, thus save energy.
The utility model installs annular heat switch 13 additional on producer gas generator, purpose is to make full use of the heat that body of heater distributes, and combustion air is carried out preheating, fuel economy, the utilization ratio of raising coal.
The external thermal insulation layer 14 that is provided with of described kiln.
The utility model kiln type is reasonable, reduced investment.Belong to power-saving kiln, unit consumption of fuel＜150kg marks coal, power consumption＜10 degree/ton lime.Can use 30 to 50mm fritter Wingdales, also can use 75 to 150mm relatively large Wingdales, can produce general building materials lime, also can produce quickened lime and select for use for industries such as building materials, metallurgy, chemical industry.
It should be noted that at last: above embodiment only in order to the explanation the utility model and and the described technical scheme of unrestricted the utility model; Therefore, although this specification sheets has been described in detail the utility model with reference to each above-mentioned embodiment,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from the technical scheme and the improvement thereof of spirit and scope of the present utility model, all should be encompassed in the claim scope of the present utility model.
Claims (5)
1, a kind of coal gas calcined lime shaft furnace, comprise the kiln body, described kiln body top is a feeding mouth, kiln body bottom is a discharge port, be preheating zone, calcining zone and finished product cooling zone from top to bottom in the kiln body, it is characterized in that: described kiln is external to be provided with a producer gas generator, and described kiln body calcining zone evenly is provided with 8 coal gas burners, and described producer gas generator is connected with coal gas burner on the kiln body by gas line.
2, coal gas calcined lime shaft furnace as claimed in claim 1 is characterized in that: described kiln body middle part calcining zone is provided with multiple tracks and burns beam.
3, coal gas calcined lime shaft furnace as claimed in claim 2 is characterized in that: described kiln body bottom cooling zone has installed the ring cold-air duct additional, and described ring cold-air duct is connected with blower fan.
4, coal gas calcined lime shaft furnace as claimed in claim 3 is characterized in that: add the annular heat switch on the described producer gas generator.
5, coal gas calcined lime shaft furnace as claimed in claim 4 is characterized in that: the external thermal insulation layer that is provided with of described kiln.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201073917U CN201217652Y (en) | 2008-04-11 | 2008-04-11 | Coal gas burnt lime vertical kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201073917U CN201217652Y (en) | 2008-04-11 | 2008-04-11 | Coal gas burnt lime vertical kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201217652Y true CN201217652Y (en) | 2009-04-08 |
Family
ID=40540486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201073917U Expired - Fee Related CN201217652Y (en) | 2008-04-11 | 2008-04-11 | Coal gas burnt lime vertical kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201217652Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102276172A (en) * | 2011-07-02 | 2011-12-14 | 员苏让 | Full automatic calcining limekiln with coal gas as heat source |
| CN110526596A (en) * | 2018-05-23 | 2019-12-03 | 绵竹市拱星氧化钙厂 | The mixing formula limekiln of fast cooling discharging |
-
2008
- 2008-04-11 CN CNU2008201073917U patent/CN201217652Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102276172A (en) * | 2011-07-02 | 2011-12-14 | 员苏让 | Full automatic calcining limekiln with coal gas as heat source |
| CN110526596A (en) * | 2018-05-23 | 2019-12-03 | 绵竹市拱星氧化钙厂 | The mixing formula limekiln of fast cooling discharging |
| CN110526596B (en) * | 2018-05-23 | 2023-08-29 | 四川马氏窑技术发展有限公司 | Quick cooling and discharging mixed 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090408 Termination date: 20160411 |