CN105693115A - Calcium oxide efficient calcining furnace - Google Patents

Calcium oxide efficient calcining furnace Download PDF

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Publication number
CN105693115A
CN105693115A CN201610088465.6A CN201610088465A CN105693115A CN 105693115 A CN105693115 A CN 105693115A CN 201610088465 A CN201610088465 A CN 201610088465A CN 105693115 A CN105693115 A CN 105693115A
Authority
CN
China
Prior art keywords
calcium oxide
heater
furnace
calcining furnace
furnace 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.)
Pending
Application number
CN201610088465.6A
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Chinese (zh)
Inventor
周建新
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.)
Hong Yu Calcified Material Co Ltd Of Changshu City
Original Assignee
Hong Yu Calcified Material Co Ltd Of Changshu City
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 Hong Yu Calcified Material Co Ltd Of Changshu City filed Critical Hong Yu Calcified Material Co Ltd Of Changshu City
Priority to CN201610088465.6A priority Critical patent/CN105693115A/en
Publication of CN105693115A publication Critical patent/CN105693115A/en
Pending legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2/00Lime, magnesia or dolomite
    • C04B2/10Preheating, burning calcining or cooling
    • 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 invention discloses a calcium oxide efficient calcining furnace, comprising a furnace body.The inner wall of the furnace body is an inverted cone frustum with both upper and lower surfaces being horizontal planes, the bottom of the cone frustum is provided with a filter mesh, and a calcium oxide powder outlet is provided below the filter mesh; a gas chamber is provided between the inner wall and outer wall of the furnace body, and the inner wall of the furnace body is evenly provided with a plurality of combustion heads in communication with the gas chamber; a stirring shaft is inserted from the top center of the furnace body into a hearth, the top left of the furnace body is in communication with a feed passage, and the top right of the furnace body is in communication with a tail gas outlet.The calcium oxide efficient calcining furnace is simple in structure and novel in design, the inner wall structure of the furnace body, the combustion chamber and the combustion heads are designed to effectively improve combustion insufficiency for material entering the furnace body, improve calcium oxide purity and lower energy consumption.

Description

A kind of efficient calcining furnace of calcium oxide
Technical field
The present invention relates to calcium oxide and produce apparatus field, particularly relate to a kind of efficient calcining furnace of calcium oxide。
Background technology
Calcium oxide is widely used in manufacturing carbide, soda, bleaching powder, refractory material, calcareous fertilisers, as desiccant and soil conditioner;As analytical reagent, the flux manufacturing fluorescent material;For process hides, purification of waste water;As construction material, metallurgical flux;It is hydrogen manufacturing calcium oxide and the primary raw material of various calcium compounds。
Traditional calcium oxide production method is mainly with limestone for raw material, and calcine technology adopts shaft furnace, limestone and solid fuel is mixed or is layered calcining in loading kiln, finally remaining is calcium oxide product。The equipment volume that this production method needs is big, is also easy to introduce secondary impurities, and the calcium oxide purity of production is relatively low, can not meet far away the demand of reality, and environmental pollution is also relatively larger。
People adopt Gypsum Fibrosum high-temperature calcination to produce calcium oxide in a large number in recent years。In order to make Gypsum Fibrosum fully burn, occur in that various calcining furnace on the market, the genus that wherein combustion efficiency is best adopts oxygen and acetylene mixed injection burning (CN103043697B), but this combustion furnace still suffers from following defect: 1. part Gypsum Fibrosum unburned is directly from discharge port discharging;2. part Gypsum Fibrosum is directly entered tail gas recycle pond by substance nozzle after being sprayed;3, oxygen undertakes fuel and the effect of Gypsum Fibrosum injection power, and consumption is big。
Summary of the invention
The technical problem that present invention mainly solves is to provide a kind of efficient calcining furnace of calcium oxide, structure adjusting can be carried out from combustion system, mixing of materials mode and three angles of calcining furnace structural change, to carry out Gypsum Fibrosum all burning thoroughly, solve existing Gypsum Fibrosum burning and prepare the not thorough incomplete defect of burning that calcium oxide exists。
For solving above-mentioned technical problem, the technical scheme that the present invention adopts is: provide a kind of efficient calcining furnace of calcium oxide, including body of heater, the internal face of described body of heater is the inverted conical body that upper and lower surface is horizontal plane, the bottom of described cone is provided with drainage screen, exports for calcium oxide powder body below described drainage screen;It is provided with combustion gas chamber between internal face and the outside wall surface of described body of heater, described inboard wall of furnace body face is uniformly arranged the combustion head that multiple and described combustion gas chamber connects;Described body of heater top center inserts shaft to furnace chamber, and the left side at described body of heater top connects with feeding-passage, connects with offgas outlet on the right side of it。
In a preferred embodiment of the present invention, the tapering of described cone is 0.4~0.7。
In a preferred embodiment of the present invention, the distance between described combustion gas chamber and top, inboard wall of furnace body face is the 1/5~1/3 of described furnace chamber height。
In a preferred embodiment of the present invention, the bottom side in described combustion gas chamber by burning line with body of heater outside gas cylinder connect, the burning line between described gas cylinder and described body of heater is also equipped with gas boosting pump。
In a preferred embodiment of the present invention, the top of described shaft is passed the part of described body of heater and is connected with stirring motor by shaft coupling。
In a preferred embodiment of the present invention, the end of described feeding-passage and body of heater opposite side is connected to aerator, and described feeding-passage is connected to hopper。
In a preferred embodiment of the present invention, described offgas outlet connects with heat exchanger and exhaust gas absorption cell successively。
The invention has the beneficial effects as follows: the efficient calcining furnace of one calcium oxide of the present invention, simple in construction, novel in design, it is by the design of inboard wall of furnace body face structure, combustion chamber and combustion head, it is effectively increased and enters the adequacy of material burning in body of heater, improve the purity of calcium oxide, and reduce energy consumption。Particularly advantage of the invention is as follows:
1, by the design causing conical structure internal face with equally distributed combustion head, the Gypsum Fibrosum in entrance body of heater is made from up to down to burn step by step, it is to avoid the phenomenon that leakage combustion is just discharged from discharging opening;
2, by the design of agitating device, Gypsum Fibrosum is made to be fully contacted burning with combustion flame in body of heater;
3, not introducing secondary pollution, sufficient combustion, completely, product purity is high。
Accompanying drawing explanation
Fig. 1 is the perspective view of the present invention efficient calcining furnace of a kind of calcium oxide;
In accompanying drawing, the labelling of each parts is as follows: 1. body of heater, 2. drainage screen, 3. the outlet of calcium oxide powder body, 4. combustion gas chamber, 5. combustion head, 6. gas cylinder, 7. gas boosting pump, 8. shaft, 9. shaft coupling, 10. stirring motor, 11. aerator, 12. hoppers, 13. heat exchangers, 14. exhaust gas absorption cells。
Detailed description of the invention
Below in conjunction with accompanying drawing, presently preferred embodiments of the present invention is described in detail, so that advantages and features of the invention can be easier to be readily appreciated by one skilled in the art, thus protection scope of the present invention being made apparent clear and definite defining。
Referring to Fig. 1, the embodiment of the present invention includes:
A kind of efficient calcining furnace of calcium oxide, including body of heater 1, the internal face of body of heater 1 is the inverted conical body that upper and lower surface is horizontal plane, and its tapering is 0.4~0.7, the bottom of described cone and the bottom in inboard wall of furnace body face are provided with drainage screen 2, export 3 for calcium oxide powder body below drainage screen。
It is provided with combustion gas chamber 4 between internal face and the outside wall surface of described body of heater 1, inboard wall of furnace body face is also uniformly arranged multiple combustion head 5 connected with combustion gas chamber 4;Between combustion gas chamber 4 and body of heater 1 internal face top distance is furnace chamber height 1/5~1/3, the bottom side in combustion gas chamber 4 by burning line with body of heater outside gas cylinder 6 connect, burning line between gas cylinder 6 and body of heater 1 is also equipped with gas boosting pump 7, for the compressed gas in gas cylinder is transported in combustion gas chamber 4 with the form of gases at high pressure, thus improving combustion gas mobility in combustion gas chamber, make each combustion head homogenous combustion, improve efficiency of combustion。
Described body of heater 1 top center is inserted into the shaft 8 with blade to furnace chamber, the top of this shaft 8 is passed the part of described body of heater 1 and is connected with stirring motor 10 by shaft coupling 9, shaft moves up and down and rotary motion in furnace chamber, drives the Gypsum Fibrosum entered in furnace chamber fully to burn by blade。
The left side at described body of heater 1 top connects with feeding-passage, and the end of this feeding-passage and body of heater opposite side is connected to aerator 11, and described feeding-passage is connected to hopper 12。By aerator, Gypsum Fibrosum is blown into combustion furnace, it is possible to make the fully dispersed burning of Gypsum Fibrosum。
The left side at described body of heater 1 top connects with offgas outlet, and this offgas outlet connects with heat exchanger 13 and exhaust gas absorption cell 14 successively。This vent gas treatment processes fully, free from environmental pollution, and residual heat of reaction is fully utilized, and has energy-saving and cost-reducing effect。
The present invention carries out structure adjusting by combustion system (equally distributed combustion head), mixing of materials mode (aerator winding-up pan feeding and stirring mixing) and three angles of calcining furnace structure (inverted conical internal face), make the material in entrance combustion furnace burn fully comprehensively, it is effectively increased combustion efficiency, thus improve the purity of product calcium oxide, and energy efficient。
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the present invention and accompanying drawing content to make or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all in like manner include in the scope of patent protection of the present invention。

Claims (7)

1. the efficient calcining furnace of calcium oxide, it is characterised in that include body of heater, the internal face of described body of heater is the inverted conical body that upper and lower surface is horizontal plane, and the bottom of described cone is provided with drainage screen, exports for calcium oxide powder body below described drainage screen;It is provided with combustion gas chamber between internal face and the outside wall surface of described body of heater, described inboard wall of furnace body face is uniformly arranged the combustion head that multiple and described combustion gas chamber connects;Described body of heater top center inserts shaft to furnace chamber, and the left side at described body of heater top connects with feeding-passage, connects with offgas outlet on the right side of it。
2. the efficient calcining furnace of calcium oxide according to claim 1, it is characterised in that the tapering of described cone is 0.4~0.7。
3. the efficient calcining furnace of calcium oxide according to claim 1, it is characterised in that the distance between described combustion gas chamber and top, inboard wall of furnace body face is the 1/5~1/3 of described furnace chamber height。
4. the efficient calcining furnace of calcium oxide according to claim 3, it is characterized in that, the bottom side in described combustion gas chamber by burning line with body of heater outside gas cylinder connect, the burning line between described gas cylinder and described body of heater is also equipped with gas boosting pump。
5. the efficient calcining furnace of calcium oxide according to claim 1, it is characterised in that the top of described shaft is passed the part of described body of heater and connected with stirring motor by shaft coupling。
6. the efficient calcining furnace of calcium oxide according to claim 1, it is characterised in that the end of described feeding-passage and body of heater opposite side is connected to aerator, and described feeding-passage is connected to hopper。
7. the efficient calcining furnace of calcium oxide according to claim 1, it is characterised in that described offgas outlet connects with heat exchanger and exhaust gas absorption cell successively。
CN201610088465.6A 2016-02-17 2016-02-17 Calcium oxide efficient calcining furnace Pending CN105693115A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610088465.6A CN105693115A (en) 2016-02-17 2016-02-17 Calcium oxide efficient calcining furnace

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Application Number Priority Date Filing Date Title
CN201610088465.6A CN105693115A (en) 2016-02-17 2016-02-17 Calcium oxide efficient calcining furnace

Publications (1)

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CN105693115A true CN105693115A (en) 2016-06-22

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108585554A (en) * 2018-06-21 2018-09-28 安徽雪城超细碳酸钙有限公司 A kind of efficient calcining furnace of oxidation calcium product processing
CN108840702A (en) * 2018-08-10 2018-11-20 新疆天物生态科技股份有限公司 A kind of haydite and preparation method thereof containing gasifier slag
CN110671705A (en) * 2019-09-10 2020-01-10 安徽华塑股份有限公司 Solid waste calcining device in chlor-alkali industry
CN112066722A (en) * 2020-08-31 2020-12-11 李霞 Environment-friendly mineral fiber who is heated evenly makes and uses combustor

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100249734B1 (en) * 1998-02-21 2000-03-15 천필지 Method of producing powdered calcium oxide
CN2599497Y (en) * 2003-01-23 2004-01-14 郭晓兰 Powder material heating device
KR20040026252A (en) * 2002-09-23 2004-03-31 주식회사 포스코 A duplex waste water purification apparatus for shaft kiln
CN201276488Y (en) * 2008-10-14 2009-07-22 杨志强 Vertical gas calcining limekiln
CN201411419Y (en) * 2009-06-04 2010-02-24 临沂市中亚节能环保窑炉技术研究所 Exhaust flue gas waste heat-recovering energy-saving environment-friendly lime kiln
CN102219403A (en) * 2011-04-02 2011-10-19 主父学标 Environmental-protection and energy-saving gas generation chamber carbon-burning shaft kiln
CN204388630U (en) * 2015-01-15 2015-06-10 广东梅雁吉祥水电股份有限公司 A kind of manufacture of cement preheater material-strewing device
CN205528457U (en) * 2016-02-17 2016-08-31 常熟市宏宇钙化物有限公司 Burning furnace is forged to calcium oxide high efficiency

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100249734B1 (en) * 1998-02-21 2000-03-15 천필지 Method of producing powdered calcium oxide
KR20040026252A (en) * 2002-09-23 2004-03-31 주식회사 포스코 A duplex waste water purification apparatus for shaft kiln
CN2599497Y (en) * 2003-01-23 2004-01-14 郭晓兰 Powder material heating device
CN201276488Y (en) * 2008-10-14 2009-07-22 杨志强 Vertical gas calcining limekiln
CN201411419Y (en) * 2009-06-04 2010-02-24 临沂市中亚节能环保窑炉技术研究所 Exhaust flue gas waste heat-recovering energy-saving environment-friendly lime kiln
CN102219403A (en) * 2011-04-02 2011-10-19 主父学标 Environmental-protection and energy-saving gas generation chamber carbon-burning shaft kiln
CN204388630U (en) * 2015-01-15 2015-06-10 广东梅雁吉祥水电股份有限公司 A kind of manufacture of cement preheater material-strewing device
CN205528457U (en) * 2016-02-17 2016-08-31 常熟市宏宇钙化物有限公司 Burning furnace is forged to calcium oxide high efficiency

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108585554A (en) * 2018-06-21 2018-09-28 安徽雪城超细碳酸钙有限公司 A kind of efficient calcining furnace of oxidation calcium product processing
CN108840702A (en) * 2018-08-10 2018-11-20 新疆天物生态科技股份有限公司 A kind of haydite and preparation method thereof containing gasifier slag
CN110671705A (en) * 2019-09-10 2020-01-10 安徽华塑股份有限公司 Solid waste calcining device in chlor-alkali industry
CN112066722A (en) * 2020-08-31 2020-12-11 李霞 Environment-friendly mineral fiber who is heated evenly makes and uses combustor

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Application publication date: 20160622