CN105731835A - Multi-group heat accumulating type lime kiln device - Google Patents
Multi-group heat accumulating type lime kiln device Download PDFInfo
- Publication number
- CN105731835A CN105731835A CN201610056040.7A CN201610056040A CN105731835A CN 105731835 A CN105731835 A CN 105731835A CN 201610056040 A CN201610056040 A CN 201610056040A CN 105731835 A CN105731835 A CN 105731835A
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- China
- Prior art keywords
- kiln
- heat accumulating
- accumulating type
- flue gas
- reversing
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2/00—Lime, magnesia or dolomite
- C04B2/10—Preheating, burning calcining or cooling
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Furnace Details (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention relates to a multi-group heat accumulating type lime kiln device which comprises a lime kiln, a main fume tube, a main air tube, a feeding system and a waste gas discharge system, wherein the lime kiln consists of two kiln bodies; the two kiln bodies are respectively internally provided with charging bells, preheating zones, burning zones, cooling zones and discharge holes; fume-air reversing three-way valves are arranged at the upper parts of the kiln bodies; burners are arranged in the burning zones; fume channels are formed in the lower parts of the burning zones; cooling air channels are formed in the cooling zones. The multi-group heat accumulating type lime kiln device consists of 2-20 groups of lime kilns, wherein the fume channels of the 2-20 groups of the lime kilns are integrally connected; the kiln bodies are connected with the main fume tube and the main air tube through the fume-air reversing three-way valves in a communicated manner. Due to adoption of the multi-group heat accumulating type lime kiln device, the energy consumption of lime production is further reduced, the production property of the multi-group heat accumulating type lime kiln device is improved, and the space for per unit output is reduced.
Description
Technical field
The invention belongs to chemical materials and produce equipment technical field, relate to a kind of limekiln, be specifically related to group heat accumulating type lime kiln device more than one.
Background technology
Mialz lime kiln also known as and flow heat accumulating type limekiln, the shaft furnace that two the kiln cylinders being connected by passage form, and flow heat accumulating type limekiln and be provided with two kiln thoraxes, two kiln thorax alternately calcinings and preheating Ore, it is provided with exhaust gases passes between bottom the burning zone of two kiln thoraxes to communicate with each other, about every commutation in 15 minutes once to convert the duty of kiln thorax.When operation, two kiln thoraxes alternately load Ore, and fuel is sent into by the top of two kiln thoraxes respectively, makes fuel be evenly distributed on the section of whole kiln thorax by the branched spray gun being located at bottom preheating zone, makes raw ore be calcined uniformly.Due to and to flow calcination process long, lime quality is good.Two kiln thorax blocked operations, waste gas directly preheats Ore, and heat is fully utilized, and specific heat consumption is minimum in various kiln types.But, existing pair of thorax also flows limekiln thorax and cannot accomplish very big, and equipment yield is limited, be limited mainly by kiln thorax do big after the uniformity variation influence of air-flow and material.Also have and reduce energy expenditure further, improve yield and the space of compression floor space.
Summary of the invention
The present invention provides group heat accumulating type lime kiln device more than one, by organizing limekiln combination, reduces the energy consumption of lime production further more, improves the production capacity of device, reduces floor space.
The technical scheme is that many group heat accumulating type lime kiln devices, including limekiln, charging system, discharge system and exhaust emission system.Limekiln is made up of two kiln body, is respectively equipped with charging bell, preheating zone, burning zone, cooling band and discharging opening in two kiln body.The top of kiln body is provided with cigarette sky reversing three-way valve, and burning zone is provided with burner, and the bottom of burning zone is provided with exhaust gases passes, and cooling band is provided with cooling air channel.Device is made up of 2～20 groups of limekilns, and the exhaust gases passes in 2～20 groups of limekilns is interconnected, and device is provided with flue gas house steward and air header, and kiln body is led to flue gas house steward and air header by cigarette sky reversing three-way valve and connect.
It is respectively equipped with slide valve between cigarette sky reversing three-way valve and flue gas house steward and between air header.Air header is connected with aerator, and flue gas house steward is connected with exhaust emission system and flue gas blowdown piping by flue gas three-way valve, and exhaust emission system includes cleaner unit, air-introduced machine and chimney.The connected mode of cigarette sky reversing three-way valve and air header and flue gas house steward is that each group of limekiln arranges one group of cigarette sky reversing three-way valve, and decentralised control commutates；Or every 2～20 groups of limekilns arrange one group of cigarette sky reversing three-way valve, centralized Control commutates.Often group limekiln is separately provided charging system and discharge system, or 2～20 groups of limekiln concentrated setting charging systems and discharge system.Often it is separately provided cooling system or 2～20 groups of limekiln concentrated setting cooling systems bottom group limekiln.
Develop according to heat accumulating type principle and form two groups or more many groups heat accumulating type lime kiln device, adopt common flue gas house steward and air header between kiln body, be connected with air header and flue gas house steward by cigarette sky reversing three-way valve, it is achieved heat accumulating type handoff functionality.Exhaust gases passes every one group or two groups or three groups limekiln arranges one dividing plate, intercepts the flue gas between corresponding kiln group, i.e. independent exhaust gases passes or many flue gases channel connection, reaches not stop, by yield packet control or entirety, the purpose that certain single group kiln body is overhauled by kiln.Often organize and the fume pipe in limekiln is respectively equipped with effusion meter, flow control valve.
The present invention many groups heat accumulating type lime kiln device, by many group limekiln combinations, reduce further the energy consumption of lime production, improves the production capacity of device, decrease the floor space of specific yield.The invention have the characteristics that and 1. decrease occupation area of equipment, facility compact under the premise promoting overall kiln group yield as much as possible, production capacity is high.2. the energy consumption of specific yield is reduced.3. can control often to organize the flue gas flow of kiln body.4. can intercept the flue gas switching of corresponding kiln group by arranging slide valve, reach not stop kiln maintenance by yield packet control and entirety.5. one or more groups changement, a set of control system controls overall kiln group, reduces the auxiliary facility investment of supporting public affairs and operating cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention many groups heat accumulating type lime kiln device；
Fig. 2 is the side view of Fig. 1；
Fig. 3 is the top view of Fig. 1；
Wherein:
1 charging system, 2 limekilns, 3 flue gas three-way valve, 4 charging bells, 5 exhaust gases passes, 6 discharging openings, 7 cigarette sky reversing three-way valves, 8 cooling air channels, 9 burners, 10 feeders, 11 air headers, 12 flue gas house stewards, 13 dividing plates.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the present invention is described in detail.Scope is not limited to embodiment, and those skilled in the art make any change in the scope that claim limits and fall within the scope of protection of the invention.
Embodiment 1
The present invention many groups heat accumulating type lime kiln device as shown in Figures 1 to 3, including 9 groups of limekilns 2, charging system 1, discharge system, flue gas house steward 12, air header 11 and exhaust emission system.Often group limekiln is made up of two kiln body, is respectively equipped with charging bell 4, preheating zone, burning zone, cooling band and discharging opening 6 in two kiln body.The exhaust gases passes in 9 groups of limekilns is connected as a single entity, and exhaust gases passes is provided with dividing plate 13, every one dividing plate in three groups of limekilns.The top of kiln body is provided with cigarette sky reversing three-way valve 7, and the bottom of burning zone is provided with exhaust gases passes 5, and burning zone is provided with burner 9, and cooling band is provided with cooling air channel 8.Kiln body is led to flue gas house steward and air header by cigarette sky reversing three-way valve and is connect, it is achieved online heat accumulating type handoff functionality.Be respectively equipped with slide valve between cigarette sky reversing three-way valve and flue gas house steward and between air header, the connected mode of cigarette sky reversing three-way valve and air header and flue gas house steward 12 be each group of limekiln one group of cigarette sky reversing three-way valve is set, it is achieved decentralised control commutates.Air header is connected with aerator, and flue gas house steward is connected with exhaust emission system and flue gas blowdown piping respectively by waste gas three-way valve 3.Exhaust emission system includes cleaner unit, air-introduced machine and chimney.Often group limekiln is separately provided charging system 1 and discharge system.Often it is separately provided cooling system bottom group limekiln, often organizes and the fume pipe in limekiln is respectively equipped with effusion meter, flow control valve.
The running of the present invention many groups heat accumulating type lime kiln device is, 9 groups of limekilns share a set of charging system 1, air header 11 and flue gas house steward 12.The corresponding feeder 10 of each kiln body in limekiln, feeder is corresponding with the charging bell 4 in kiln body to feed in raw material.Two kiln thoraxes hocket and calcine and preheating lime stone, during calcining, aerator sprays combustion air by air header 11, cigarette sky reversing three-way valve in kiln body, burner 9 sprays gas-fired combustion-supporting burning, the limestone material of burning zone is calcined, flue gas after calcining is by the exhaust gases passes 5 of burning zone bottom to another kiln body preheating material, and the useless flue gas after preheating material discharges to exhaust emission system through cigarette sky reversing three-way valve and the flue gas house steward 12 of opposite side kiln body.Commutated every 15 minutes, realize switch operation by the action of cigarette sky reversing three-way valve.Being advanced into cooling band under the Calx calcined, pass into cooling air by cooling air channel 8 to cooling band and Calx is cooled down, the Calx after cooling goes out device through discharging opening 6.
Can according to producing load and technological requirement selection part group limekiln production, part is organized limekiln and is stopped production, and the slide valve between this kiln cigarette sky reversing three-way valve and flue gas house steward is closed in the limekiln of stopping production, with isolation of system.With each group of limekiln can carry out in sampling device packet maintenance or troubleshooting, it is necessary to the limekiln of maintenance of stopping, by closing slide valve, cut-out contacts with system.
Embodiment 2
Another embodiment of the invention is, 6 groups of limekilns 2, charging system 1, discharge system, flue gas house steward 12, air header 11 and exhaust emission system, the exhaust gases passes in 6 groups of limekilns is connected as a single entity.The connected mode of cigarette sky reversing three-way valve 7 and air header 11 and flue gas house steward 12 is that 6 groups of limekilns arrange one group of cigarette sky reversing three-way valve, and centralized Control commutates.6 groups of limekiln concentrated setting cooling systems, 6 groups of limekiln concentrated setting charging systems and discharge system.Other is structurally and operationally identical with embodiment 1.
Claims (5)
1. one kind, organize heat accumulating type lime kiln device more, including limekiln (2), charging system (1), discharge system and exhaust emission system, described limekiln is made up of two kiln body, is respectively equipped with charging bell (4), preheating zone, burning zone, cooling band and discharging opening (6) in two kiln body；The top of described kiln body is provided with cigarette sky reversing three-way valve (7), described burning zone is provided with burner (9), the bottom of burning zone is provided with exhaust gases passes (5), described cooling band is provided with cooling air channel (8), it is characterized in that: described device is made up of 2～20 groups of limekilns, the exhaust gases passes in described 2～20 groups of limekilns is interconnected；Described device is provided with flue gas house steward (12) and air header (11), and described kiln body is led to flue gas house steward and air header by cigarette sky reversing three-way valve and connect.
2. many group heat accumulating type lime kiln devices according to claim 1, is characterized in that: be respectively equipped with slide valve between described cigarette sky reversing three-way valve (7) and flue gas house steward (12) and between air header (11).
3. many group heat accumulating type lime kiln devices according to claim 1, it is characterized in that: described air header (11) is connected with aerator, described flue gas house steward is connected with exhaust emission system and flue gas blowdown piping by flue gas three-way valve (3), and described exhaust emission system includes cleaner unit, air-introduced machine and chimney.
4. many group heat accumulating type lime kiln devices according to claim 1, it is characterized in that: the connected mode of described cigarette sky reversing three-way valve (7) and air header (11) and flue gas house steward (12) is that each group of limekiln arranges one group of cigarette sky reversing three-way valve (7), or every 2～20 groups of limekilns arrange one group of cigarette sky reversing three-way valve.
5. many group heat accumulating type lime kiln devices according to claim 1, is characterized in that: often group limekiln is separately provided charging system (1) and discharge system or 2～20 groups of limekiln concentrated setting charging systems.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610056040.7A CN105731835B (en) | 2016-01-28 | 2016-01-28 | A kind of multiple groups heat accumulating type lime kiln device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610056040.7A CN105731835B (en) | 2016-01-28 | 2016-01-28 | A kind of multiple groups heat accumulating type lime kiln device |
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| CN105731835A true CN105731835A (en) | 2016-07-06 |
| CN105731835B CN105731835B (en) | 2019-03-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114014563A (en) * | 2021-11-11 | 2022-02-08 | 广西盛隆冶金有限公司 | Automatic time-sharing reversing system and reversing method for double-hearth lime kiln |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101597145A (en) * | 2008-12-04 | 2009-12-09 | 贾会平 | A kind of method and apparatus of lime calcining |
| CN102701610A (en) * | 2012-06-30 | 2012-10-03 | 石家庄市新华工业炉有限公司 | Concurrent flow type double-hearth limekiln |
| CN103332873A (en) * | 2013-06-05 | 2013-10-02 | 石家庄新华能源环保科技股份有限公司 | Parallel-flow heat accumulating type lime rotary kiln |
| CN103482889A (en) * | 2013-09-16 | 2014-01-01 | 石家庄新华能源环保科技股份有限公司 | Heat accumulating type material calcinating device |
-
2016
- 2016-01-28 CN CN201610056040.7A patent/CN105731835B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101597145A (en) * | 2008-12-04 | 2009-12-09 | 贾会平 | A kind of method and apparatus of lime calcining |
| CN102701610A (en) * | 2012-06-30 | 2012-10-03 | 石家庄市新华工业炉有限公司 | Concurrent flow type double-hearth limekiln |
| CN103332873A (en) * | 2013-06-05 | 2013-10-02 | 石家庄新华能源环保科技股份有限公司 | Parallel-flow heat accumulating type lime rotary kiln |
| CN103482889A (en) * | 2013-09-16 | 2014-01-01 | 石家庄新华能源环保科技股份有限公司 | Heat accumulating type material calcinating device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114014563A (en) * | 2021-11-11 | 2022-02-08 | 广西盛隆冶金有限公司 | Automatic time-sharing reversing system and reversing method for double-hearth lime kiln |
| CN114014563B (en) * | 2021-11-11 | 2023-09-15 | 广西盛隆冶金有限公司 | Automatic time-sharing reversing system and reversing method for double-chamber lime kiln |
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| Publication number | Publication date |
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| CN105731835B (en) | 2019-03-29 |
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