CN101857383B - Beam limekiln - Google Patents

Beam limekiln Download PDF

Info

Publication number
CN101857383B
CN101857383B CN2010102104469A CN201010210446A CN101857383B CN 101857383 B CN101857383 B CN 101857383B CN 2010102104469 A CN2010102104469 A CN 2010102104469A CN 201010210446 A CN201010210446 A CN 201010210446A CN 101857383 B CN101857383 B CN 101857383B
Authority
CN
China
Prior art keywords
burning
thermal oil
cooling
air
burner
Prior art date
Application number
CN2010102104469A
Other languages
Chinese (zh)
Other versions
CN101857383A (en
Inventor
贾会平
Original Assignee
贾会平
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 贾会平 filed Critical 贾会平
Priority to CN2010102104469A priority Critical patent/CN101857383B/en
Publication of CN101857383A publication Critical patent/CN101857383A/en
Application granted granted Critical
Publication of CN101857383B publication Critical patent/CN101857383B/en

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 invention provides a beam limekiln, which mainly comprises a kiln body, a burning system, a discharging system, an air supply system and a control system, wherein a cooling belt of the kiln body is provided with an upper layer of burning beams and a lower layer of burning beams, and the burning beam is provided with a cooling system; and the cooling system comprises a cavity between a beam body and an outer wall, a connecting pipeline, a conducting oil circulating pump and a conducting oil cooler, and the conducting oil cooler comprises an oil way and an air pipeline. The conducting oil cooler is connected with a preheating air pipeline or a fuel gas pipeline or a cooling air pipeline of the cooling belt, and exchanges heat with hot combustion air or fuel gas or cooling air so as to recover heat discharged by cooling the conducting oil of the burning beam, thereby saving energy, reducing energy consumption and production cost and improving economic efficiency. The invention has reasonable flow and more optimized production operation.

Description

A kind of beam-type limekiln
Technical field
The invention belongs to building materials, chemical machinery technical field, relate to a kind of kiln of calcining materials, be specifically related to a kind of improvement of beam-type limekiln.
Background technology
With the beam-type limekiln calcined limestone is the new technology that lime is produced.Beam-type limekiln has advantages such as energy consumption is low, the lime product quality is good, throughput is strong, turndown ratio is big, is widely used in the lime production of purposes such as metallurgy, chemical industry.Burning beam is the nucleus equipment of beam-type limekiln, and the beam body of burning beam is provided with burner, fuel conduit and combustion air pipeline.Through fuel conduit and combustion-aid air pipe road direction burner transfer the fuel and combustion air, burner uniform distribution fuel also burns, and burning beam is worked under the high temperature of 1200~1500 ℃ of calcining zones, burns out the beam body easily, influences the LP safety in production.
The applicant's number of patent application is 200320111077.3, and the utility model patent that name is called " interior external heating type limestone kiln " provides the technical scheme and the burning beam refrigerative technical scheme of burning beam-type limekiln.Another part application number of the applicant is 200820078007.5; The utility model patent that name is called " a kind of kiln of lime calcining " has also disclosed burning beam refrigerative technical scheme; This scheme " burns out beam body and the intravital facility of beam for avoiding high temperature, is provided with the cavity of heat-eliminating medium circulation in the beam body of upper and lower layer burning beam and following suction bar ".Above-mentioned patented technology has solved burning beam cooling problem; Avoid burning out facility in beam body and the beam body; Circulation is cooled off but the beam body uses thermal oil, and the thermal oil that comes out from the beam body returns burning beam through heat-condutive oil heat exchanger after by air cooling, and the heat of cooling combustion beam can not be recycled; Cause energy dissipation, increased the lime production cost.
Summary of the invention
For overcoming the deficiency of above-mentioned prior art, the present invention provides a kind of beam-type limekiln, makes full use of the waste heat behind the thermal oil cooling combustion beam, makes Production Flow Chart more reasonable, saves the energy, reduces production costs, and increases economic efficiency.
Beam-type limekiln provided by the invention mainly comprises kiln body, feeder system, firing system, discharge system, air feed system and system.The kiln body comprises opening for feed, preheating zone, calcining zone, cooling zone and discharge port.Said calcining zone is equipped with upper and lower two-layer burning beam, is provided with fuel conduit and air passageways in the beam body, and fuel conduit is connected to burner.Burning beam is provided with the burning beam cooling system, and cooling system comprises cavity, connecting pipeline, thermal oil recycle pump and the thermal oil water cooler between beam body and the outer wall, and the thermal oil water cooler has oil circuit and airline.Combustion air is connected to burning beam combustion air inlet through the thermal oil water cooler; Or gas line is connected to the fuel gas inlet of burning beam through the thermal oil water cooler; Or cooling blower is connected to cooling air inlet on the cooling zone through the thermal oil water cooler, and said connecting pipeline and thermal oil water cooler outer wall are surrounded by thermal insulation layer.
The calcining zone upper strata is provided with 2~6 burning beams 5, and lower floor establishes 1~4 burning beam.The thermal oil outlet of each layer burning beam and thermal oil inlet connect together respectively and are communicated with the thermal oil recycle system.
The top of preheating zone is provided with suction bar, and last suction bar is 1~4.The middle part of cooling zone is provided with down suction bar, and following suction bar is 1~4.Last suction bar is connected with exhaust emission system through flue gas/combustion gas interchanger, or is connected with exhaust emission system with flue gas/combustion gas interchanger through flue gas/air heat exchanger respectively.Exhaust emission system comprises fly-ash separator, induced draft fan and chimney.As selection, combustion air can lead to burning beam combustion air inlet through thermal oil water cooler and flue gas/air heat exchanger successively.
Burning beam is rectangle burning beam or T-shape burning beam, and said burner is located at the both sides or the bottom of burning beam.The fuel conduit of burning beam is box-shaped body or tubular body arranged inside structure, and air passageways is the box-shaped body structure, and fuel conduit passes through from air passageways.
As selection, be provided with 2~40 tubular body arranged inside fuel conduits in the burning beam body, the corresponding burner of every road fuel tube.Burner is the combination of geseous fuel burner, liquid fuel burner, solid fuel burner or above-mentioned burner.
Compared with prior art; Thermal oil water cooler of the present invention and combustion air pipeline or gas line or cooling zone cooling air pipeline are connected; Through burning beam thermal oil cooling liberated heat being reclaimed with combustion air or combustion gas or cooling air heat exchange, saved the energy, make every production 1kg lime energy expenditure reduce to 4300kj by 4800kj; Reduce energy consumption and production cost, improved economic benefit.Flow process of the present invention is reasonable, and production operation is more optimized.
Description of drawings
Fig. 1 is the schematic flow sheet of beam-type limekiln of the present invention;
Fig. 2 is the schematic flow sheet of another program beam-type limekiln of the present invention;
Fig. 3 is the schematic flow sheet of third party's case beam-type limekiln of the present invention.
Wherein:
1-hopper, the last suction bar of 2-, 3-preheating zone, 4-calcining zone, 5-burning beam, 6-cooling zone, the last cooling air intake of 7-, 8-cooling air intake, 9-discharge port, 10-flue gas/combustion gas interchanger, 11-fly-ash separator, 12-induced draft fan, 13-chimney, the outlet of 14-thermal oil, 15-thermal oil inlet, 16-thermal oil recycle pump, 17-thermal oil water cooler, 18-valve, 19-cooling blower, 20-flue gas/air heat exchanger, 21-kiln body.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
Embodiment 1
Beam-type limekiln of the present invention is as shown in Figure 1, mainly comprises kiln body 21, feeder system, firing system, discharge system, air feed system and system.The kiln body comprises opening for feed, preheating zone 3, calcining zone 4, cooling zone 6 and discharge port.The top of preheating zone is provided with two suction bars 2.Calcining zone 4 is equipped with upper and lower two-layer burning beam 5, and the upper strata is provided with 3 burning beams 5, and lower floor establishes 2 burning beams, and burning beam is the T-shape burning beam.Be provided with fuel conduit and air passageways in the beam body, fuel conduit and air passageways are box-shaped body, and fuel conduit passes through in air passageways.Fuel conduit is connected to burner, and burner is the geseous fuel burner, and burner is located at the both sides of burning beam, 10 burners of every side.Be provided with the cavity of thermal oil circulation between beam body and the outer wall, the thermal oil outlet 14 of each layer burning beam connects together respectively with thermal oil inlet 15 and is communicated with the thermal oil recycle system.The thermal oil recycle system comprises connecting pipeline, thermal oil recycle pump 16 and thermal oil water cooler 17, and the thermal oil water cooler has oil circuit and airline.Gas blower leads to burning beam combustion air inlet through the air of thermal oil water cooler, and gas line is connected to the fuel gas inlet of burning beam through flue gas/combustion gas interchanger.Connecting pipeline and thermal oil water cooler outer wall are surrounded by thermal insulation layer.Cooling blower 19 is connected to cooling zone cooling air intake 8.Last suction bar is connected to exhaust emission system through flue gas/combustion gas interchanger 10 and connects, and exhaust emission system comprises fly-ash separator 11, induced draft fan 12 and chimney 13.
The process of beam-type limekiln calcining materials does, limestone material is delivered to hopper 2 by feed machinery, drops down onto preheating zone 3 by hopper through bell, by the high-temperature flue gas that rises from calcining zone Wingdale carried out preheating, and the material after the preheating goes downwards to calcining zone 4.Burn by the combustion gas and the combustion air mixing of the ejection of two row's burning beams, 5 burners at calcining zone, calcined limestone, the lime after the calcining goes downwards to cooling zone 6.At cooling zone, cooling air is by cooling blower 19 air blast, gets into cooling zones through cooling air intake 8 and from bottom to top lime cooled off, and cooled lime product is through discharge port 9 kiln discharges, through discharging equipment to the product storehouse.Thermal oil is emitted heat warm-up combustion-supporting air through thermal oil recycle pump 16 to thermal oil water cooler 17, thermal oil water cooler from burning beam thermal oil outlet 14; Thermal oil after the cooling circulates through the cavity that burning beam thermal oil inlet 15 gets in the burning beam in this way.Extract flue gas out from last suction bar 2 and pass to combustion gas to heat after discharge to exhaust emission system through flue gas/combustion gas interchanger.
Embodiment 2
Another embodiment of the present invention such as Fig. 2 are said, and the cooling zone of said beam-type limekiln is provided with two cooling air intakes, i.e. cooling air gas inlet 8 and last cooling air intake 7.Cooling blower 19 is divided into two-way, and one the road is connected to cooling air intake 8, and another path thermal oil water cooler is connected to cooling air intake 7.Connecting pipeline is provided with valve 18, is used to regulate the air quantity that gets into the thermal oil water cooler.2 outlets of last suction bar are divided into two-way, and one the tunnel is connected to exhaust emission system through flue gas/combustion gas interchanger 10, and one the tunnel is connected to exhaust emission system through flue gas/air heat exchanger.This embodiment is brought heat in the kiln body into through cooling air at the bottom of the kiln with thermal oil and the cooling air heat exchange that gets into cooling zone, and gas to preheating zone preheating limestone material, reclaims the heat that thermal oil is taken out of with this kind mode behind calcining zone.

Claims (10)

1. beam-type limekiln; Mainly comprise kiln body, feeder system, firing system, discharge system, air feed system and system; The kiln body comprises opening for feed, preheating zone, calcining zone, cooling zone and discharge port; Said calcining zone (4) is equipped with upper and lower two-layer burning beam (5), is provided with fuel conduit and air passageways in the beam body, and fuel conduit is connected to burner; Burning beam is provided with the burning beam cooling system; Cooling system comprises cavity, connecting pipeline, thermal oil recycle pump (16) and the thermal oil water cooler (17) between beam body and the outer wall; The thermal oil water cooler is made up of oil circuit and airline; It is characterized in that: airline is connected to burning beam combustion air inlet by gas blower through thermal oil water cooler and flue gas heat exchange device; Or gas line is connected to the fuel gas inlet of burning beam through thermal oil water cooler and flue gas heat exchange device, or cooling blower (19) pipeline is connected to cooling air intake on the cooling zone (7) through the thermal oil water cooler, and said connecting pipeline and thermal oil water cooler outer wall are surrounded by thermal insulation layer.
2. beam-type limekiln according to claim 1 is characterized in that: said calcining zone upper strata is provided with 2~6 burning beams (5), and lower floor establishes 1~4 burning beam; The thermal oil outlet (14) of each layer burning beam and thermal oil inlet (15) connect together respectively and are communicated with the thermal oil recycle system.
3. beam-type limekiln according to claim 1 is characterized in that: the top of said preheating zone is provided with suction bar (2), and said upward suction bar is 1~4.
4. beam-type limekiln according to claim 3 is characterized in that: suction bar can be set in the middle part of said cooling zone, and said suction bar down is 1~4.
5. beam-type limekiln according to claim 3; It is characterized in that: the said suction bar of going up is connected with exhaust emission system through flue gas/combustion gas interchanger (10); Or be connected with exhaust emission system with flue gas/combustion gas interchanger (10) through flue gas/air heat exchanger (20) respectively, said exhaust emission system comprises fly-ash separator (11), induced draft fan (12) and chimney (13).
6. beam-type limekiln according to claim 5; It is characterized in that: combustion air passes to burning beam combustion air inlet by gas blower through thermal oil water cooler (17), flue gas/air heat exchanger (20), or gas line passes to the burning beam fuel gas inlet through thermal oil water cooler (17), combustion gas/air heat exchanger (10).。
7. beam-type limekiln according to claim 1 is characterized in that: said burning beam is rectangle burning beam or T-shape burning beam, and said burner is located at the both sides and/or the bottom of burning beam.
8. beam-type limekiln according to claim 1 is characterized in that: the fuel conduit of said burning beam is box-shaped body or tubular body arranged inside structure, and air passageways is the box-shaped body structure, and fuel conduit passes through from air passageways.
9. beam-type limekiln according to claim 8 is characterized in that: be provided with 2~40 tubular body arranged inside fuel conduits in the said burning beam body, the corresponding burner of every road fuel tube.
10. beam-type limekiln according to claim 1 is characterized in that: said burner is the combination of geseous fuel burner, liquid fuel burner, solid fuel burner or above-mentioned burner.
CN2010102104469A 2010-06-28 2010-06-28 Beam limekiln CN101857383B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010102104469A CN101857383B (en) 2010-06-28 2010-06-28 Beam limekiln

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010102104469A CN101857383B (en) 2010-06-28 2010-06-28 Beam limekiln

Publications (2)

Publication Number Publication Date
CN101857383A CN101857383A (en) 2010-10-13
CN101857383B true CN101857383B (en) 2012-04-18

Family

ID=42943579

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010102104469A CN101857383B (en) 2010-06-28 2010-06-28 Beam limekiln

Country Status (1)

Country Link
CN (1) CN101857383B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102001837A (en) * 2010-10-14 2011-04-06 贾会平 Method and device for calcining materials by using low calorific value fuel
CN102155846B (en) * 2011-04-27 2012-08-08 许广春 Lime roasting shaft kiln
CN102351442B (en) * 2011-07-22 2013-06-19 石家庄新华能源环保科技股份有限公司 Method for material calcination and limekiln device
CN102353273B (en) * 2011-07-22 2013-10-09 石家庄新华能源环保科技股份有限公司 Method and device for using low temperature heat of lime kiln
CN102384680A (en) * 2011-10-25 2012-03-21 上海和衡能源科技发展有限公司 Device for recovering and utilizing waste heat generated by smoke discharging in split type heating medium circulating way
CN103043930B (en) * 2012-12-19 2014-12-24 西安科技大学 Method and equipment for producing cement and gathering CO2 by utilizing closed ring-shaped calcination furnace
CN103043925B (en) * 2012-12-21 2014-03-26 张克海 Lime kiln with heat energy recovery system
CN102992661B (en) * 2012-12-25 2014-05-21 石家庄新华能源环保科技股份有限公司 Beam type heat storage lime kiln
CN102992660B (en) * 2012-12-25 2014-05-21 石家庄新华能源环保科技股份有限公司 Low-heat value fuel lime kiln
CN104058604B (en) * 2013-03-20 2016-03-16 佘园园 A kind of multi fuel ring beam type limestone kiln
CN103708744B (en) * 2013-12-31 2016-04-06 石家庄新华能源环保科技股份有限公司 Low-heat value gas thermal storage type limestone kiln
CN103922616B (en) * 2014-03-14 2015-09-09 石家庄奋进科技有限公司 A kind of steel and refractory materials composite adiabatic formula burning beam
CN106186739B (en) * 2015-05-05 2018-05-22 武汉艾蒙窑炉技术有限公司 Bulk material roasting shaft kiln with arched girder
CN108751757A (en) * 2018-06-01 2018-11-06 潞城市泰山石膏建材有限公司 A kind of gypsum calcining energy-saving and emission-reduction method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2656405Y (en) * 2003-10-20 2004-11-17 贾会平 Internal-external heating lime furnace
CN101195520A (en) * 2007-12-19 2008-06-11 黄官禹 Vertical continuous calcination lime burner
CN201258298Y (en) * 2008-07-25 2009-06-17 贾会平 Kiln for burning lime

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2167058B (en) * 1984-11-21 1988-06-08 Smidth & Co As F L Method and apparatus for cooling white cement clinker

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2656405Y (en) * 2003-10-20 2004-11-17 贾会平 Internal-external heating lime furnace
CN101195520A (en) * 2007-12-19 2008-06-11 黄官禹 Vertical continuous calcination lime burner
CN201258298Y (en) * 2008-07-25 2009-06-17 贾会平 Kiln for burning lime

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP昭61-127650A 1986.06.14

Also Published As

Publication number Publication date
CN101857383A (en) 2010-10-13

Similar Documents

Publication Publication Date Title
CN102951640B (en) Calcium carbide producing device
CN100451524C (en) Method for converting to hot air from flue gas in baking furnace
CN101585524B (en) Fugitive constituent and preheated air passage structure of tank type carbon calciner
CN102875036B (en) Heat storage type lime rotary kiln
CN201258298Y (en) Kiln for burning lime
CN101173324A (en) Novel technique for comprehensive utilization of continuous strip annealing furnace flue gas exhaust heat and device thereof
CN201313819Y (en) Volatile matter and preheated air channel structure of calciner
CN200988857Y (en) Coal base environment protection type steel strip type reducing furnace
CN201748772U (en) Rotary type heat superconductive drying tube directly using energy for outer heating not using steam or heat conductive oil
CN201254529Y (en) Cement clinker calcination system
CN101921073B (en) Method and machine for producing lime
CN104121591B (en) A kind of efficient energy-saving incinerator
CN103424001A (en) High-temperature material vertical cooler and waste heat using system
CN201630195U (en) Energy-saving high-efficiency grain drier
CN103435276B (en) Production apparatus of active lime
CN105349160A (en) Continuous vertical porous dry distillation furnace for straw
CN202066385U (en) Novel waste heat recovery and use device
CN103436684A (en) Heat-accumulating billet heating furnace
CN203007148U (en) Low-heat-value fuel lime kiln
CN201284352Y (en) Roller hearth flue gas shielding gas atmosphere steel pipe heat processing furnace
CN101457305B (en) Double-burning and double thermal heat storing type energy-saving high efficiency furnace and tank integrated reducing furnace system
CN101608793B (en) Air and gas double heat accumulating type burner
CN102517042A (en) Method for heating coke oven capable of controlling multistage combustion
CN201122464Y (en) Energy-saving environment-friendly enamelling machine oven
CN201043745Y (en) vertical air-cooling low-dust liquid pulverized coal combustion device

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
TR01 Transfer of patent right

Effective date of registration: 20130114

Address after: 051431 Hebei city of Shijiazhuang province Luancheng douyu town equipment manufacturing base of Xinhua Road No. 6 (douyu West Middle School)

Patentee after: Shijiazhuang Xinhua Energy and Environmental Protection Technology Co., Ltd.

Address before: 050091 Hebei city of Shijiazhuang Province in the South Street Garden Xucheng No. 2461

Patentee before: Jia Huiping

ASS Succession or assignment of patent right

Owner name: SHIJIAZHUANG XINHUA ENERGY ENVIRONMENTAL TECHNOLOG

Free format text: FORMER OWNER: JIA HUIPING

Effective date: 20130114

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 050091 SHIJIAZHUANG, HEBEI PROVINCE TO: 051431 SHIJIAZHUANG, HEBEI PROVINCE