CN204022686U - Utilize flue gas calcining to produce the device of lime - Google Patents

Utilize flue gas calcining to produce the device of lime Download PDF

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Publication number
CN204022686U
CN204022686U CN201420377106.9U CN201420377106U CN204022686U CN 204022686 U CN204022686 U CN 204022686U CN 201420377106 U CN201420377106 U CN 201420377106U CN 204022686 U CN204022686 U CN 204022686U
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CN
China
Prior art keywords
calcining
flue gas
limestone kiln
quality
combustion chamber
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Withdrawn - After Issue
Application number
CN201420377106.9U
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Chinese (zh)
Inventor
贾会平
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Shijiazhuang Xinhua Energy Environmental Protection Technology Co Ltd
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Shijiazhuang Xinhua Energy Environmental Protection Technology Co Ltd
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Priority to CN201420377106.9U priority Critical patent/CN204022686U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency
    • Y02P20/129Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/40Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills

Abstract

The utility model relates to a kind of device that utilizes flue gas calcining to produce lime, comprises high-quality calcining furnace and limestone kiln.High-quality calcining furnace is provided with decomposition gas outlet, and limestone kiln is provided with exhaust gas emission facility.Cooling cooling air inlet and the lower suction bar of being provided with in high-quality calcining furnace and limestone kiln.The calcining zone of high-quality calcining furnace is provided with combustion chamber, the locular wall of combustion chamber is built by laying bricks or stones and is formed or make with metallic substance by heat conduction brick structures, one of combustion chamber is provided with burner and secondary air entrance, and other end is connected to the smoke inlet of limestone kiln calcining zone by flue gas pipeline.Burner is provided with fuel oil atomizer and a wind entrance.The high-quality calcining furnace that the utility model heats by partition combines with limestone kiln; utilize the flue gas calcined limestone of partition heating flame chamber; take full advantage of the waste heat of flue gas; reduce the energy consumption of roasting assembly; improve limestone kiln overall economic efficiency; and be conducive to reduce exhaust gas emission, environment protection.

Description

Utilize flue gas calcining to produce the device of lime
Technical field
The utility model belongs to industrial furnace technical field, relates to a kind of industrial furnace, is specifically related to a kind of device that utilizes flue gas calcining to produce lime.
Background technology
Industrial furnace residual heat is recycled, can save energy consumption, reduce thermal technology's products production cost, and reduce the discharge of pollutent simultaneously.Industrial furnace is large-scale highly energy-consuming device, and along with the fast development of national economy, the waste heat of industrial furnace is very abundant, available having a high potential.The industry of Iron And Steel Industry, calcium carbide, aluminum oxide industry and refractory industry are energy consumption rich anies influential family, and the rapid growth of above-mentioned industry has driven the high speed development of industrial furnace.The carbonic acid gas that in lime production, decomposition of limestone produces is precious resources, because the carbonic acid gas and the combustion product gases that decompose mix, be unfavorable for recovery and the utilization of carbonic acid gas, therefore need muffle to heat to improve the quality of products and isolate valuable carbonic acid gas.The flue-gas temperature that the calcining furnace of the high-quality product of partition heating production is discharged is high, and directly heat energy is not only wasted in discharge, and pollutant atmosphere, and the effective utilization of this part fume afterheat can be reduced to energy dissipation, increases economy and the feature of environmental protection of industrial furnace.
Utility model content
The purpose of this utility model is to provide a kind of device that utilizes flue gas calcining to produce lime, the high-quality calcining furnace heating by partition combines with flue gas limestone kiln, the flue gas calcined limestone that utilizes partition heating flame chamber to discharge, reduce the energy consumption of roasting assembly, improve the overall economic efficiency of lime production.
The technical solution of the utility model is: utilize flue gas calcining to produce the device of lime, comprise high-quality calcining furnace and limestone kiln, high-quality calcining furnace and limestone kiln are respectively equipped with opening for feed, discharge port.High-quality calcining furnace is provided with decomposition gas outlet, and limestone kiln is provided with exhaust gas emission facility.The kiln thorax in the burner hearth of high-quality calcining furnace and limestone kiln is respectively equipped with preheating zone, calcining zone and cooling zone, cooling cooling air inlet and the lower suction bar of being provided with in high-quality calcining furnace and limestone kiln.The calcining zone of high-quality calcining furnace is provided with combustion chamber, and the locular wall of combustion chamber is built by laying bricks or stones and formed or make with metallic substance by heat conduction brick structures, and metallic substance is cast steel, cast iron or high temperature steel, and the calcining zone in limestone kiln is provided with smoke inlet.One of combustion chamber is provided with burner and secondary air entrance, and other end is connected to the smoke inlet of limestone kiln calcining zone by flue gas pipeline.Burner is provided with fuel oil atomizer and a wind entrance.
One end that combustion chamber is connected with flue gas pipeline is provided with molten slag bath, and molten slag bath is provided with slag notch.High-quality calcining furnace is provided with 1~10 combustion chamber, and limestone kiln is provided with 1~10 smoke inlet, and each combustion chamber is connected with the smoke inlet in limestone kiln by flue gas pipeline respectively.Device is provided with two high-quality calcining furnaces, and the combustion chamber of two high-quality calcining furnaces is connected to respectively the smoke inlet in limestone kiln by flue gas pipeline.Flue gas pipeline is bell-mouth structure of air.Fuel oil atomizer is gas fuel nozzle, liquid fuel nozzle or solid fuel nozzle, or is the combination of above-mentioned fuel oil atomizer.Device is provided with carbon dioxide treatment unit, and decomposition gas outlet is connected with carbon dioxide treatment unit by induced draft fan.Carbon dioxide treatment unit is provided with purifying carbon dioxide equipment, carbonic acid gas cooling apparatus and carbon dioxide storage tank, and purifying carbon dioxide equipment, carbonic acid gas cooling apparatus are connected successively with carbon dioxide storage tank.Exhaust gas emission facility is upper suction bar or Waste gas outlet, and upper suction bar or Waste gas outlet are connected with exhaust emission system.The lower suction bar outlet in high-quality calcining furnace and/or limestone kiln is connected to secondary air entrance by induced draft fan.
Purifying carbon dioxide and collecting device only just have when producing high-quality lime, when producing blue charcoal, be exactly blue charcoal air cooling but and collection and purification; When producing rubbish, it has been exactly the cooling and purifying of rubbish carbonization gas.The utility model is for the calcining of multiple thermal technology's products such as Wingdale, rhombspar, blue carbon, rubbish.
The high-quality calcining furnace that the device that the utility model utilizes flue gas calcining to produce lime heats by partition combines with limestone kiln; the flue gas calcined limestone that utilizes partition heating flame chamber to discharge; take full advantage of the waste heat of flue gas; reduce the energy consumption of roasting assembly; improve the overall economic efficiency of lime production; and be conducive to reduce exhaust gas emission, environment protection.High-quality calcining furnace adopts the outer hot mode calcined limestone of external combustion, and combustion chamber and decomposition of limestone chamber are separated, and is conducive to improve the quality of calcination product, reclaims high-pureness carbon dioxide.Utilize the cooling air after cooling calcination product to make secondary combustion-supporting wind, further improved heat energy utilization in calcination process.
Accompanying drawing explanation
Fig. 1 is that the utility model utilizes flue gas calcining to produce the schematic flow sheet of lime device;
Fig. 2 is the schematic diagram of another embodiment of the utility model;
Fig. 3 is the utility model schematic diagram of an embodiment again;
Wherein:
1-high-quality calcining furnace, 2-burner hearth, 3-combustion chamber, 4-wind entrance, 5-fuel oil atomizer, 6-burner, 7-secondary air entrance, 8-cooling air inlet, 9-molten slag bath, 10-flue gas pipeline, 11-slag notch, 12-limestone kiln, 13-kiln thorax, 14-smoke inlet, 15-hydraucone, 16-locular wall, the outlet of 17-decomposition gas, 18-lower suction bar, 19-upper suction bar, 20-induced draft fan.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is elaborated.The utility model protection domain is not limited to embodiment, makes the scope that any change also belongs to the utility model protection in the scope that those skilled in the art limit in claim.
Embodiment 1
The utility model utilizes flue gas calcining to produce the device of lime, as shown in Figure 1, comprises high-quality calcining furnace 1, limestone kiln 12 and carbon dioxide treatment unit, and high-quality calcining furnace and limestone kiln are respectively equipped with opening for feed, discharge port.The burner hearth 2 of high-quality calcining furnace and the kiln thorax 13 in limestone kiln are respectively equipped with preheating zone, calcining zone and cooling zone.The preheating zone of high-quality calcining furnace is provided with decomposition gas outlet 17, and cooling zone is provided with cooling air inlet 8 and lower suction bar 18, and decomposition gas outlet is connected with carbon dioxide treatment unit.The preheating zone in limestone kiln is provided with suction bar 19, cooling zone is provided with cooling air inlet 8 and lower suction bar 18, and upper suction bar is connected with exhaust emission system.The calcining zone of high-quality calcining furnace is provided with combustion chamber 3, and the locular wall 16 of combustion chamber is built by laying bricks or stones and formed by heat conduction brick structures.The calcining zone in limestone kiln is provided with smoke inlet 14.One of combustion chamber is provided with burner 6 and secondary air entrance 7, and other end is connected to the smoke inlet of limestone kiln calcining zone by flue gas pipeline 10, and one end that combustion chamber is connected with flue gas pipeline 10 is provided with molten slag bath 9, and molten slag bath is provided with slag notch 11.Burner is provided with fuel oil atomizer 5 and a wind entrance 4, and fuel oil atomizer is solid fuel nozzle, and fuel oil atomizer is connected with coal dust pipeline, and one time wind entrance is connected with gas blower.Lower suction bar 18 outlets of high-quality calcining furnace 1 are connected to secondary air entrance 7 by induced draft fan 20.Carbon dioxide treatment unit is provided with purifying carbon dioxide equipment, carbonic acid gas cooling apparatus and carbon dioxide storage tank, and purifying carbon dioxide equipment, carbonic acid gas cooling apparatus are connected successively with carbon dioxide storage tank.
The utility model utilizes the operational process of fume afterheat calcining production lime device to be, high-quality calcining furnace 1 is muffle heating and calcining, produces fat lime and carbonic acid gas, and limestone kiln 12 is that common lime is produced in flue gas heating calcining.Limestone material enters the burner hearth of high-quality calcining furnace through opening for feed, arrive calcining zone after the preheating of preheating zone, the material of combustion chambers burn muffle heating and calcining band, and decomposition of limestone becomes lime and carbonic acid gas.Lime is come out of the stove by discharge port cooling zone is cooling, and carbonic acid gas is processed to carbon dioxide treatment unit by decomposition gas outlet 17 at preheating zone preheating material, recovery high-pureness carbon dioxide product.Pulverized Coal sprays into burner by fuel oil atomizer, the air that gas blower bloats enters the combustion-supporting burning of burner through gas inlet, the flue gas producing enters the calcining zone in limestone kiln 12 through flue gas pipeline 10 and smoke inlet 14, the limestone material of flue gas heating calcining zone, the flue gas after calcining materials preheating zone, limestone kiln preheating material by suction bar 19 to exhaust emission system discharge.After combustion chambers burn, ash melting state is discharged through the slag notch 11 of molten slag bath 9.The cooling air that cooling blower bloats enters cooling zone cool lime through cooling air inlet, and the high-temperature gas after cool lime is made secondary combustion-supporting wind through induced draft fan 20, secondary air entrance 7 to combustion chamber.
Embodiment 2
As shown in Figure 2, high-quality calcining furnace 1 is provided with 2 layers of combustion chamber 3 to another embodiment of the utility model, and limestone kiln is provided with 2 layers of smoke inlet 14, and each combustion chamber is connected with the smoke inlet in limestone kiln 12 by flue gas pipeline 10 respectively.Flue gas pipeline 10 is hydraucone 15 structures.
Embodiment 3
The utility model again an embodiment as shown in Figure 2, device is provided with two high-quality calcining furnaces 1 and a bedstone ash furnace, every high-quality calcining furnace is provided with 2 layers of combustion chamber 3, limestone kiln is provided with a plurality of smoke inlets 14, two smoke inlets of every side.The combustion chamber 3 of two high-quality calcining furnaces is connected with the smoke inlet 14 in limestone kiln by flue gas pipeline 10 respectively.

Claims (10)

1. utilize flue gas calcining to produce a device for lime, comprise high-quality calcining furnace (1) and limestone kiln (12), high-quality calcining furnace and limestone kiln are respectively equipped with opening for feed, discharge port; High-quality calcining furnace is provided with decomposition gas outlet (17), and limestone kiln is provided with exhaust gas emission facility; The kiln thorax (13) in the burner hearth of high-quality calcining furnace (2) and limestone kiln is respectively equipped with preheating zone, calcining zone and cooling zone, cooling cooling air inlet (8) and the lower suction bar (18) of being provided with in described high-quality calcining furnace and limestone kiln, it is characterized in that: the calcining zone of described high-quality calcining furnace is provided with combustion chamber (3), the locular wall of described combustion chamber (16) is built by laying bricks or stones and is formed or make with metallic substance by heat conduction brick structures, and described metallic substance is cast steel, cast iron or high temperature steel; The calcining zone in described limestone kiln is provided with smoke inlet (14); One of described combustion chamber is provided with burner (6) and secondary air entrance (7), and other end is connected to the smoke inlet of limestone kiln calcining zone by flue gas pipeline (10); Described burner is provided with fuel oil atomizer (5) and a wind entrance (4).
2. the device that utilizes flue gas calcining to produce lime according to claim 1, is characterized in that: one end that described combustion chamber is connected with flue gas pipeline (10) is provided with molten slag bath (9), and described molten slag bath is provided with slag notch (11).
3. the flue gas that utilizes according to claim 1 is calcined the device of producing lime, it is characterized in that: described high-quality calcining furnace (1) is provided with 1~10 combustion chamber (3), limestone kiln is provided with 1~10 smoke inlet (14), and each combustion chamber is connected with the smoke inlet of limestone kiln (12) by flue gas pipeline (10) respectively.
4. the flue gas that utilizes according to claim 3 is calcined the device of producing lime, it is characterized in that: described device is provided with two high-quality calcining furnaces (1), the combustion chamber of two high-quality calcining furnaces (3) are connected to respectively the smoke inlet (14) in limestone kiln by flue gas pipeline.
5. the device that utilizes flue gas calcining to produce lime according to claim 1, is characterized in that: described flue gas pipeline (10) is hydraucone (15) structure.
6. the device that utilizes flue gas calcining to produce lime according to claim 1, is characterized in that: described fuel oil atomizer (5) is gas fuel nozzle, liquid fuel nozzle or solid fuel nozzle, or is the combination of above-mentioned fuel oil atomizer.
7. the device that utilizes flue gas calcining to produce lime according to claim 1, is characterized in that: described device is provided with carbon dioxide treatment unit, and described decomposition gas outlet is connected with carbon dioxide treatment unit.
8. the flue gas that utilizes according to claim 7 is calcined the device of producing lime, it is characterized in that: described carbon dioxide treatment unit is provided with purifying carbon dioxide equipment, carbonic acid gas cooling apparatus and carbon dioxide storage tank, purifying carbon dioxide equipment, carbonic acid gas cooling apparatus are connected successively with carbon dioxide storage tank.
9. the device that utilizes flue gas calcining to produce lime according to claim 1, is characterized in that: described exhaust gas emission facility is upper suction bar (19) or Waste gas outlet, and upper suction bar or Waste gas outlet are connected with exhaust emission system.
10. the device that utilizes flue gas calcining to produce lime according to claim 1, is characterized in that: lower suction bar (18) outlet of described high-quality calcining furnace (1) and/or limestone kiln (12) is connected to secondary air entrance (7) by induced draft fan (20).
CN201420377106.9U 2014-07-09 2014-07-09 Utilize flue gas calcining to produce the device of lime Withdrawn - After Issue CN204022686U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420377106.9U CN204022686U (en) 2014-07-09 2014-07-09 Utilize flue gas calcining to produce the device of lime

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Application Number Priority Date Filing Date Title
CN201420377106.9U CN204022686U (en) 2014-07-09 2014-07-09 Utilize flue gas calcining to produce the device of lime

Publications (1)

Publication Number Publication Date
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104119008A (en) * 2014-07-09 2014-10-29 石家庄新华能源环保科技股份有限公司 Device using flue gas calcining for production of lime

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104119008A (en) * 2014-07-09 2014-10-29 石家庄新华能源环保科技股份有限公司 Device using flue gas calcining for production of lime
CN104119008B (en) * 2014-07-09 2016-05-04 石家庄新华能源环保科技股份有限公司 Utilize flue gas calcining to produce the device of lime

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
AV01 Patent right actively abandoned

Granted publication date: 20141217

Effective date of abandoning: 20160504

C25 Abandonment of patent right or utility model to avoid double patenting