CN104119008B - Utilize flue gas calcining to produce the device of lime - Google Patents

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

Info

Publication number
CN104119008B
CN104119008B CN201410324649.9A CN201410324649A CN104119008B CN 104119008 B CN104119008 B CN 104119008B CN 201410324649 A CN201410324649 A CN 201410324649A CN 104119008 B CN104119008 B CN 104119008B
Authority
CN
China
Prior art keywords
flue gas
limekiln
calcining
quality
combustion chamber
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.)
Active
Application number
CN201410324649.9A
Other languages
Chinese (zh)
Other versions
CN104119008A (en
Inventor
贾会平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shijiazhuang Xinhua Energy Environmental Protection Technology Co Ltd
Original Assignee
Shijiazhuang Xinhua Energy Environmental Protection Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shijiazhuang Xinhua Energy Environmental Protection Technology Co Ltd filed Critical Shijiazhuang Xinhua Energy Environmental Protection Technology Co Ltd
Priority to CN201410324649.9A priority Critical patent/CN104119008B/en
Publication of CN104119008A publication Critical patent/CN104119008A/en
Application granted granted Critical
Publication of CN104119008B publication Critical patent/CN104119008B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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 present invention relates to a kind of device that utilizes flue gas calcining to produce lime, comprise high-quality calcining furnace and limekiln. High-quality calcining furnace is provided with decomposition gas outlet, and limekiln is provided with toxic emission facility. Cooling cooling air inlet and the lower suction bar of being provided with in high-quality calcining furnace and limekiln. The burning 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 metal material by heat conduction brick setting, one of combustion chamber is provided with burner and Secondary Air entrance, and other end is connected to the smoke inlet of limekiln burning zone by flue gas pipeline. Burner is provided with fuel nozzle and a wind entrance. The high-quality calcining furnace that the present invention heats by partition combines with limekiln; 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 calciner plant; improve limekiln overall economic efficiency; and be conducive to reduce toxic emission, environment protection.

Description

Utilize flue gas calcining to produce the device of lime
Technical field
The invention belongs to industrial furnace technical field, relate to a kind of industrial furnace, be specifically related to a kind of device that utilizes flue gas calcining to produce lime.
Background technology
Industrial furnace residual heat is recycled, and can save energy resource consumption, reduces thermal technology's production cost, reduces the discharge of pollutant 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. Steel and iron industry, calcium carbide industry, 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 carbon dioxide that in lime production, decomposition of limestone produces is precious resources, because the carbon dioxide and the combustion product gases that decompose mix, be unfavorable for recovery and the utilization of carbon dioxide, therefore need muffle to heat to improve the quality of products and isolate valuable carbon dioxide. The flue-gas temperature that the calcining furnace of partition heating production high-quality product is discharged is high, and directly heat energy is not only wasted in discharge, and pollutant atmosphere, and effective this part fume afterheat utilization can be reduced to energy waste, increases economy and the feature of environmental protection of industrial furnace.
Summary of the invention
The object of this invention 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 limekiln, the flue gas calcined limestone that utilizes partition heating flame chamber to discharge, reduce the energy consumption of calciner plant, improve the overall economic efficiency of lime production.
Technical scheme of the present invention is: utilize flue gas calcining to produce the device of lime, comprise high-quality calcining furnace and limekiln, high-quality calcining furnace and limekiln are respectively equipped with charging aperture, discharging opening. High-quality calcining furnace is provided with decomposition gas outlet, and limekiln is provided with toxic emission facility. The kiln thorax in the burner hearth of high-quality calcining furnace and limekiln is respectively equipped with preheating zone, burning zone and salband, cooling cooling air inlet and the lower suction bar of being provided with in high-quality calcining furnace and limekiln. The burning 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 metal material by heat conduction brick setting, and metal material is cast steel, cast iron or heat resisting steel, and the burning zone in limekiln 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 limekiln burning zone by flue gas pipeline. Burner is provided with fuel nozzle 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 limekiln is provided with 1~10 smoke inlet, and each combustion chamber is connected with the smoke inlet in limekiln 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 limekiln by flue gas pipeline. Flue gas pipeline is bell-mouth structure of air. Fuel nozzle is gas fuel nozzle, liquid fuel nozzle or solid fuel nozzle, or is the combination of above-mentioned fuel nozzle. Device is provided with carbon dioxide treatment unit, and decomposition gas outlet is connected with carbon dioxide treatment unit by air-introduced machine. Carbon dioxide treatment unit is provided with purifying carbon dioxide equipment, carbon dioxide cooling device and carbon dioxide storage tank, and purifying carbon dioxide equipment, carbon dioxide cooling device are connected successively with carbon dioxide storage tank. Toxic 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 limekiln is connected to Secondary Air entrance by air-introduced machine.
Purifying carbon dioxide and collecting device only just have in production high-quality lime, in the blue charcoal of production, 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 present invention is for the calcining of multiple thermal technology's products such as lime stone, dolomite, blue carbon, rubbish.
The high-quality calcining furnace that the device that the present invention utilizes flue gas calcining to produce lime heats by partition combines with limekiln; 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 calciner plant; improve the overall economic efficiency of lime production; and be conducive to reduce toxic 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.
Brief description of the drawings
Fig. 1 is that the present invention utilizes flue gas calcining to produce the schematic flow sheet of lime device;
Fig. 2 is the schematic diagram of another embodiment of the present invention;
Fig. 3 is the present invention's schematic diagram of an embodiment again;
Wherein:
1-high-quality calcining furnace, 2-burner hearth, 3-combustion chamber, 4-wind entrance, 5-fuel nozzle, 6-burner, 7-Secondary Air entrance, 8-cooling air inlet, 9-molten slag bath, 10-flue gas pipeline, 11-slag notch, 12-limekiln, 13-kiln thorax, 14-smoke inlet, 15-horn mouth, 16-locular wall, the outlet of 17-decomposition gas, 18-lower suction bar, 19-upper suction bar, 20-air-introduced machine.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in detail. Protection domain of the present invention is not limited to embodiment, makes any change and also belong to the scope of protection of the invention in the scope that those skilled in the art limit in claim.
Embodiment 1
The present invention utilizes flue gas calcining to produce the device of lime, as shown in Figure 1, comprises high-quality calcining furnace 1, limekiln 12 and carbon dioxide treatment unit, and high-quality calcining furnace and limekiln are respectively equipped with charging aperture, discharging opening. The burner hearth 2 of high-quality calcining furnace and the kiln thorax 13 in limekiln are respectively equipped with preheating zone, burning zone and salband. The preheating zone of high-quality calcining furnace is provided with decomposition gas outlet 17, and salband 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 limekiln is provided with suction bar 19, salband is provided with cooling air inlet 8 and lower suction bar 18, and upper suction bar is connected with exhaust emission system. The burning 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 setting. The burning zone in limekiln 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 limekiln burning 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 nozzle 5 and a wind entrance 4, and fuel nozzle is solid fuel nozzle, and fuel nozzle is connected with coal dust pipeline, and one time wind entrance is connected with air blast. The lower suction bar 18 of high-quality calcining furnace 1 exports by air-introduced machine 20 and is connected to Secondary Air entrance 7. Carbon dioxide treatment unit is provided with purifying carbon dioxide equipment, carbon dioxide cooling device and carbon dioxide storage tank, and purifying carbon dioxide equipment, carbon dioxide cooling device are connected successively with carbon dioxide storage tank.
The present invention utilizes the running of fume afterheat calcining production lime device to be, high-quality calcining furnace 1 is muffle heating and calcining, produces fat lime and carbon dioxide, and limekiln 12 is that common lime is produced in flue gas calcining. Limestone material enters the burner hearth of high-quality calcining furnace through charging aperture, arrive burning 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 carbon dioxide. Lime is come out of the stove through discharging opening after salband is cooling, and carbon dioxide is processed to carbon dioxide treatment unit through decomposition gas outlet 17 after the preheating material of preheating zone, reclaims high-pureness carbon dioxide product. Pulverized Coal sprays into burner by fuel nozzle, the air that air blast bloats enters the combustion-supporting burning of burner through air intake, the flue gas producing enters the burning zone in limekiln 12 through flue gas pipeline 10 and smoke inlet 14, the limestone material of flue gas burning zone, the flue gas after calcining materials after the preheating material of preheating zone, limekiln through on 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 salband cool lime through cooling air inlet, and the high-temperature gas after cool lime is made secondary combustion-supporting wind through air-introduced machine 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 present invention, and limekiln is provided with 2 layers of smoke inlet 14, and each combustion chamber is connected with the smoke inlet in limekiln 12 by flue gas pipeline 10 respectively. Flue gas pipeline 10 is horn mouth 15 structures.
Embodiment 3
The present invention 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, limekiln is provided with multiple 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 limekiln 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 limekiln (12), high-quality is forgedBurn stove and limekiln and be respectively equipped with charging aperture, discharging opening; High-quality calcining furnace is provided with decomposition gas outlet (17), and establish in limekilnThere is toxic emission facility; The burner hearth (2) of high-quality calcining furnace and the kiln thorax (13) in limekiln are respectively equipped with preheating zone, calciningBand and salband, the salband in described high-quality calcining furnace and limekiln is provided with cooling air inlet (8) and lower suction bar (18),It is characterized in that: the burning zone of described high-quality calcining furnace is provided with combustion chamber (3), the locular wall (16) of described combustion chamber is by heat conduction brickMasonry is built by laying bricks or stones and is formed or make with metal material, and described metal material is cast steel, cast iron or heat resisting steel; The calcining in described limekilnBand 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 passed throughFlue gas pipeline (10) is connected to the smoke inlet of limekiln burning zone; Described burner is provided with fuel nozzle (5) and a windEntrance (4).
2. the device that utilizes flue gas calcining to produce lime according to claim 1, is characterized in that: described combustion chamber and fume pipeOne end that road (10) connects is provided with molten slag bath (9), and described molten slag bath is provided with slag notch (11).
3. the device that utilizes flue gas calcining to produce lime according to claim 1, is characterized in that: described high-quality calcining furnace(1) be provided with 1~10 combustion chamber (3), limekiln is provided with 1~10 smoke inlet (14), and each combustion chamber is passed through respectivelyFlue gas pipeline (10) is connected with the smoke inlet of limekiln (12).
4. the device that utilizes flue gas calcining to produce lime according to claim 3, is characterized in that: described device be provided with two highQuality calcining furnace (1), the combustion chamber (3) of two high-quality calcining furnaces is connected to respectively the flue gas in limekiln by flue gas pipelineEntrance (14).
5. the device that utilizes flue gas calcining to produce lime according to claim 1, is characterized in that: described flue gas pipeline (10)For horn mouth (15) structure.
6. the device that utilizes flue gas calcining to produce lime according to claim 1, is characterized in that: described fuel nozzle (5) isGas fuel nozzle, liquid fuel nozzle or solid fuel nozzle, or be the combination of above-mentioned fuel nozzle.
7. the device that utilizes flue gas calcining to produce lime according to claim 1, is characterized in that: described device is provided with titanium dioxideCarbon processing unit, described decomposition gas outlet is connected with carbon dioxide treatment unit.
8. the device that utilizes flue gas calcining to produce lime according to claim 7, is characterized in that: described carbon dioxide treatment listUnit is provided with purifying carbon dioxide equipment, carbon dioxide cooling device and carbon dioxide storage tank, purifying carbon dioxide equipment, titanium dioxideCarbon cooling device is 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 toxic emission facility isUpper suction bar (19) or Waste gas outlet, 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: described high-quality calcining furnace(1) and/or the lower suction bar (18) of limekiln (12) outlet be connected to Secondary Air entrance (7) by air-introduced machine (20).
CN201410324649.9A 2014-07-09 2014-07-09 Utilize flue gas calcining to produce the device of lime Active CN104119008B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410324649.9A CN104119008B (en) 2014-07-09 2014-07-09 Utilize flue gas calcining to produce the device of lime

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410324649.9A CN104119008B (en) 2014-07-09 2014-07-09 Utilize flue gas calcining to produce the device of lime

Publications (2)

Publication Number Publication Date
CN104119008A CN104119008A (en) 2014-10-29
CN104119008B true CN104119008B (en) 2016-05-04

Family

ID=51764678

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410324649.9A Active CN104119008B (en) 2014-07-09 2014-07-09 Utilize flue gas calcining to produce the device of lime

Country Status (1)

Country Link
CN (1) CN104119008B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104896944B (en) * 2015-04-23 2017-01-11 浙江海洋学院 Support mechanism of blower of shell calciner
CN105110659A (en) * 2015-08-28 2015-12-02 桂林昌鑫机械制造有限公司 Equipment and method for burning limestone

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6391266B1 (en) * 1997-07-24 2002-05-21 Black & Veatch Corporation Furnace adapted to produce lime for use in downstream flue gas desulfurization process
CN101597145A (en) * 2008-12-04 2009-12-09 贾会平 A kind of method and apparatus of lime calcining
CN102992660A (en) * 2012-12-25 2013-03-27 石家庄新华能源环保科技股份有限公司 Low-heat value fuel lime kiln
CN203007148U (en) * 2012-12-25 2013-06-19 石家庄新华能源环保科技股份有限公司 Low-heat-value fuel lime kiln
CN204022686U (en) * 2014-07-09 2014-12-17 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

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6391266B1 (en) * 1997-07-24 2002-05-21 Black & Veatch Corporation Furnace adapted to produce lime for use in downstream flue gas desulfurization process
CN101597145A (en) * 2008-12-04 2009-12-09 贾会平 A kind of method and apparatus of lime calcining
CN102992660A (en) * 2012-12-25 2013-03-27 石家庄新华能源环保科技股份有限公司 Low-heat value fuel lime kiln
CN203007148U (en) * 2012-12-25 2013-06-19 石家庄新华能源环保科技股份有限公司 Low-heat-value fuel lime kiln
CN204022686U (en) * 2014-07-09 2014-12-17 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

Also Published As

Publication number Publication date
CN104119008A (en) 2014-10-29

Similar Documents

Publication Publication Date Title
CN103058536B (en) Heat-accumulation dividing-wall heating rotary kiln device
WO2016155236A1 (en) Dividing-wall rotary kiln device
CN104058608B (en) A kind of shaft furnace of partition heated material
CN203144295U (en) Heat accumulating type dividing-wall heating rotary lime kiln
CN106892578B (en) A kind of full recycling CO2Lime kiln device
CN104129931B (en) A kind of indirect heating roasting assembly with generating set
CN108863114A (en) A kind of method that the light-burned process waste heat of magnesite recycles
CN104119008B (en) Utilize flue gas calcining to produce the device of lime
CN204224469U (en) A kind of dividing wall type roasting assembly
CN104119007B (en) A kind of telescopic shaft furnace with TRT
CN203007146U (en) Beam type heat accumulation lime kiln
CN204022689U (en) A kind of telescopic shaft furnace with power generation assembly
CN204022686U (en) Utilize flue gas calcining to produce the device of lime
CN104119003B (en) The industrial furnace of heat accumulating type partition heating
CN102992661B (en) Beam type heat storage lime kiln
CN204022685U (en) The industrial furnace of heat accumulating type partition heating
CN204125382U (en) A kind of partition shaft furnace with power generation assembly
CN204265644U (en) Heat storage type lime rotary kiln
CN204625480U (en) A kind of rotary kiln device of constant temperature indirect calcination Wingdale
CN104496207B (en) Heat storage type lime rotary kiln
CN204058259U (en) A kind of take coal dust as the roasting assembly of fuel
CN203857791U (en) Circular smelting furnace
CN201522188U (en) Flame-isolated rotary kiln for calcining dolomite
CN102001837A (en) Method and device for calcining materials by using low calorific value fuel
CN105314894A (en) Rotary kiln device and method for indirectly producing lime and recycling carbon dioxide

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
C14 Grant of patent or utility model