CN104197301B - Cement kiln exhaust heat recovery power generation bypass boiler - Google Patents
Cement kiln exhaust heat recovery power generation bypass boiler Download PDFInfo
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- CN104197301B CN104197301B CN201410437878.1A CN201410437878A CN104197301B CN 104197301 B CN104197301 B CN 104197301B CN 201410437878 A CN201410437878 A CN 201410437878A CN 104197301 B CN104197301 B CN 104197301B
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- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- 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
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
- Y02P40/121—Energy efficiency measures, e.g. improving or optimising the production methods
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- 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
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Abstract
The invention provides a kind of exhaust heat recovery power generation bypass boiler that is applied to cement kiln waste heat recovery utilizing equipment technical field, the boiler body (1) of the described boiler that leaks informaton is communicated with the rotary kiln afterbody (3) of the high-temperature flue gas that transmits cement kiln generation, evaporimeter (4) is set in boiler body (1), superheater (5), drum (2) one end is communicated with water source (6), drum (2) other end is communicated with the evaporimeter (4) in boiler body (1), evaporimeter (4) is communicated with the carbonated drink separating component (7) in drum (2), carbonated drink separating component (7) is communicated with superheater (5), superheater (5) is communicated with the steam turbine (8) of steam-electric power, the boiler that leaks informaton of the present invention, simple in structure, the waste heat that bypass can be produced effectively reclaims, high-temperature flue gas is carried out to effective temperature-reducing, the heat of high-temperature flue gas is made full use of simultaneously, improve effective utilization of the energy.
Description
Technical field
The invention belongs to cement kiln waste heat recovery utilizing equipment technical field, more particularly, relate to oneCement kiln exhaust heat recovery power generation bypass boiler.
Background technology
In cement clinker production line raw material composition, alkalinity exceeds standard, and needs part to be rich in high dense in technological operationChlorion dust bypass from quality coal in cement kiln systems of degree is emitted, and to reduce chlorine ion concentration, reduces system skinningPhenomenon. For fully recycling the waste heat in cement rotary kiln tail bypass, at kiln tail, bypass is set and putsWind boiler. The high warm air of approximately 970 DEG C of approximately 30% air quantity, temperature is emitted in bypass, because cigarette air temperature height easily causesGet air port and pipeline felt jam, need cooling to process, enter again bypass pot by after cigarette temperature drop to 750 DEG CStove carries out exhaust heat recovery power generation. But equipment of the prior art, the heat that cannot realize high-temperature flue gas is abundantEffectively utilize.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of simple in structure, bypass can be producedWaste heat effectively reclaim, high-temperature flue gas is carried out to effective temperature-reducing, the heat of high-temperature flue gas is made full use of simultaneously,Realize the cement kiln exhaust heat recovery power generation bypass boiler that water is converted into the steam of generating use.
Solve above-described technical problem, the technical scheme that the present invention takes is:
The present invention is a kind of cement kiln exhaust heat recovery power generation bypass boiler, comprises boiler body, drum,Boiler body is communicated with the rotary kiln afterbody of the high-temperature flue gas that transmits cement kiln generation, in described boiler bodyEvaporimeter is set, superheater, described drum one end is communicated with water source, in the drum other end and boiler bodyEvaporimeter be communicated with, evaporimeter is communicated with the carbonated drink separating component in drum, described carbonated drink separating component andSuperheater is communicated with, and superheater is communicated with the steam turbine of steam-electric power.
Described boiler body is set to hollow structure, and boiler body comprises body leading portion and body rear end, instituteThe body leading portion lateral location of stating arranges gas approach, and gas approach is communicated with rotary kiln afterbody, body back segmentUpper end position arranges exhanst gas outlet.
Between described drum and water source, be communicated with by feed pipe, supply-water pump be set on feed pipe, drum anotherBetween end and evaporimeter, be communicated with by inlet pipeline, on inlet pipeline, arrange can increased water flow the brute force of circulationWater circulating pump.
Described superheater is arranged on body back-end location, and evaporimeter and superheater are all set to vertically arrangedStructure, evaporimeter comprises multiple superheater assemblies that are connected in series.
On the inwall of described body leading portion, arrange and can absorb the high temperature cigarette that enters boiler body from gas approachThe full film water-cooled wall of gas heat, full film water-cooled wall comprises the pipe fitting distributing along body leading portion inwall, pipe fitting one endTermination is installed and can be connected from the cooling water pump of water source internal pump water, and the pipe fitting other end is also communicated with water source.
Adopt technical scheme of the present invention, can obtain following beneficial effect:
Cement kiln exhaust heat recovery power generation bypass boiler of the present invention, 1) by boiler bodyBody leading portion arranges full film water-cooled wall, thereby reduces flue-gas temperature, recovered flue gas dust and objectionable impurities alkali,Chlorine etc., and the body back segment body of wall of boiler body only need use insulation material, and without refractory material, make stoveWall thickness, weight all greatly reduce, and have simplified furnace wall structure, have alleviated boiler gross weight; Fin panel casingThere is air-tightness good, be difficult for dust stratification, leak out less, reduce heat loss due to exhaust gas, improve boiler thermal output; 2) streamThe flow direction of the high-temperature flue gas in boiler body is horizontal direction, the evaporimeter in body leading portion and bodySuperheater in back segment is all set to vertically arranged structure, can make like this high-temperature flue gas and heat transfer pipe (steamHair device and superheater) fully contact and carry out heat exchange, and heat-transfer pipe is difficult for knot ash, the heat of high-temperature flue gasCan be fully used; 3) cement kiln exhaust heat recovery power generation bypass boiler of the present invention, energyEnough heats that the high-temperature flue gas of cement kiln is produced are transferred in boiler body by rotary kiln afterbody, first rightHigh-temperature flue gas carries out effective temperature-reducing, then the heat of high-temperature flue gas is made full use of, in evaporator pipelineWater is vaporized, and forms gas-vapor mix, then carries out steam separation by superheater, forms overheated steam,Realize the heat producing with high-temperature flue gas and water is converted into the overheated steam of generating use, then be sent to steam turbineGenerate electricity.
Brief description of the drawings
Mark in the each accompanying drawing of this description expressed content and figure is made to brief description below:
Fig. 1 is the structural representation of cement kiln exhaust heat recovery power generation of the present invention bypass boiler;
Reference numeral: 1, boiler body; 2, drum; 3, rotary kiln afterbody; 4, evaporimeter; 5, overheatedDevice; 6, water source; 7, carbonated drink separating component; 8, steam turbine; 9, body leading portion; 10, body back segment;11, gas approach; 12, exhanst gas outlet; 13, feed pipe; 14, supply-water pump; 15, inlet pipeline; 16,Strong cyclic water pump; 17, superheater assembly; 18, full mould water-cooling wall; 19, pipe fitting; 20, cooling water pump.
Detailed description of the invention
Contrast accompanying drawing below, by the description to embodiment, to the specific embodiment of the present invention as relatedThe shape, structure, each several part of each member between mutual alignment and the effect of annexation, each several part andOperation principles etc. are described in further detail:
As shown in Figure 1, the present invention is a kind of cement kiln exhaust heat recovery power generation bypass boiler, comprisesBoiler body 1, drum 2, the rotary kiln afterbody 3 of the high-temperature flue gas that boiler body 1 and transmission cement kiln produceBe communicated with the interior evaporimeter 4 that arranges of described boiler body 1, superheater 5, described drum 2 one end and water source6 are communicated with, and drum 2 other ends are communicated with the evaporimeter 4 in boiler body 1, in evaporimeter 4 and drum 2Carbonated drink separating component 7 be communicated with, carbonated drink separating component 7 is communicated with superheater 5, superheater 5 is sent out with steamThe steam turbine 8 of electricity is communicated with. The heat that the high-temperature flue gas of cement kiln can be produced is set by said structureBe transferred in boiler body by rotary kiln afterbody, the heat of high-temperature flue gas made full use of, to evaporator tubeWater in road is vaporized, and forms gas-vapor mix, then by superheater, carries out steam separation, formsHot steam, realizes the heat producing with high-temperature flue gas water is converted into overheated steam, then be sent to steamerMachine generating. Thereby realize the recycling of the heat that the high-temperature flue gas of cement kiln is produced, saved resource.
Described boiler body 1 is set to hollow structure, and boiler body 1 comprises after body leading portion 9 and bodyEnd 10, described body leading portion 9 lateral location arrange gas approach 11, gas approach 11 and rotary kiln tailPortion 3 is communicated with, and body back segment 10 upper end positions arrange exhanst gas outlet 12. What gas approach entered is to transmit waterThe high-temperature flue gas that stall produces, what exhanst gas outlet was discharged is to have reclaimed heat, and harmful substance is removedFlue gas, effectively reduced thereby get rid of the infringement of outer bound pair natural environment, played environmental-protection function.
Between described drum 2 and water source 6, be communicated with by feed pipe 13, on feed pipe 13, supply-water pump be set14, between drum 2 other ends and evaporimeter 4, be communicated with by inlet pipeline 15, on inlet pipeline 15, arrangeCan increased water flow the strong cyclic water pump 16 of circulation. Strong cyclic water pump is for realizing following of pump water and waterRing.
Described superheater 5 is arranged on 10 positions, body rear end, and evaporimeter 4 and superheater 5 are all set to hang downStraight structure of arranging, evaporimeter 4 comprises multiple superheater assemblies that are connected in series 17. Because high-temperature flue gas isHorizontal direction flows, and evaporimeter 4 and superheater 5 are all set to be arranged vertically like this, guarantees that heat transfer effectGood.
On the inwall of described body leading portion 9, arrange can absorb from gas approach 11 and enter boiler body 1The full film water-cooled wall 18 of high-temperature flue gas heat, full film water-cooled wall 18 comprises along body leading portion 9 inwalls and distributingPipe fitting 19, pipe fitting 19 terminations, one end install can connect from the cooling water pump 20 of water source 6 internal pump waters, pipePart 19 other ends are also communicated with water source 6. Like this, by full film water-cooled wall 18, can be to entering boiler originallyThe high-temperature flue gas of the body front end of body is lowered the temperature, and by reducing flue-gas temperature, plays the powder in recovered flue gasThe object of dirt and objectionable impurities alkali, chlorine etc., guarantees that cooling high-temperature fume arrives optimum working temperature, plays simultaneouslyEnvironment protecting.
Cement kiln exhaust heat recovery power generation bypass boiler of the present invention, operation principle is as follows:
High-temperature flue gas is emitted by the rotary kiln of cement kiln, and high-temperature flue gas enters boiler originally by gas approachThe body leading portion of body, at this moment because high-temperature flue gas is too high, therefore arranges full mould water-cooling wall at body leading portion, completeIn the pipe fitting of mould water-cooling wall, storage realizes the cooling water circulating by cooling water pump, like this, and to from gas approachThe high-temperature flue gas that enters body leading portion is lowered the temperature, and is cooled to optimum working temperature. Then, after coolingFlue gas along continuous straight runs flow through boiler body inside, reach evaporimeter position, in evaporimeterRecirculated water is heated. Water in evaporimeter, from water source, by drum, enters in evaporimeter, drum withStrong cyclic water pump is set between evaporimeter, guarantees that the water between evaporimeter and drum is realized constantly circulation. ThisSample, carries out exchange heat through the water in flue gas and the evaporimeter of evaporimeter, and the water in evaporimeter now formsGas-vapor mix, then by superheater, carry out steam separation, forming overheated steam, superheated vapour entersEnter steam turbine power generation, so just realize the steam that with the heat of high-temperature flue gas generation, water is converted into generating use,The object of generating electricity again.
By structure of the present invention, the heat that high-temperature flue gas can be produced is converted into the superheated steam of generating use,Realize effective recovery of cement kiln waste heat, thereby improved effective utilization of the energy, simultaneously to high-temperature flue gasIn temperature-fall period, can recovered flue gas dust and objectionable impurities alkali, chlorine etc., reach and fallen oligosaprobic object.
Cement kiln exhaust heat recovery power generation bypass boiler of the present invention, 1) by boiler bodyBody leading portion arranges full film water-cooled wall, thereby reduces flue-gas temperature, recovered flue gas dust and objectionable impurities alkali,Chlorine etc., and the body back segment body of wall of boiler body only need use insulation material, and without refractory material, make stoveWall thickness, weight all greatly reduce, and have simplified furnace wall structure, have alleviated boiler gross weight; Fin panel casingThere is air-tightness good, be difficult for dust stratification, leak out less, reduce heat loss due to exhaust gas, improve boiler thermal output; 2) streamThe flow direction of the high-temperature flue gas in boiler body is horizontal direction, the evaporimeter in body leading portion and bodySuperheater in back segment is all set to vertically arranged structure, can make like this high-temperature flue gas and heat transfer pipe (steamHair device and superheater) fully contact and carry out heat exchange, and heat-transfer pipe is difficult for knot ash, the heat of high-temperature flue gasCan be fully used; 3) cement kiln exhaust heat recovery power generation bypass boiler of the present invention, energyEnough heats that the high-temperature flue gas of cement kiln is produced are transferred in boiler body by rotary kiln afterbody, first rightHigh-temperature flue gas carries out effective temperature-reducing, then the heat of high-temperature flue gas is made full use of, in evaporator pipelineWater is vaporized, and forms gas-vapor mix, then by superheater, carries out steam separation, forms superheated steam,Realize the heat producing with high-temperature flue gas and water is converted into the steam of generating use, then be sent to steam turbine and send outElectricity.
By reference to the accompanying drawings the present invention has been carried out to exemplary description above, obviously the concrete realization of the present invention is notBe subject to the restriction of aforesaid way, if the various improvement that adopted method design of the present invention and technical scheme to carry out,Or without improving, design of the present invention and technical scheme are directly applied to other occasions, all of the present inventionIn protection domain.
Claims (3)
1. a cement kiln exhaust heat recovery power generation bypass boiler, comprises boiler body (1), drum (2),Boiler body (1) is communicated with the rotary kiln afterbody (3) of the high-temperature flue gas that transmits cement kiln generation, described potEvaporimeter (4) is set, superheater (5), described drum (2) one end and water source (6) in furnace body (1)Be communicated with, the evaporimeter (4) in drum (2) other end and boiler body (1) is communicated with, evaporimeter (4) andCarbonated drink separating component (7) in drum (2) is communicated with, described carbonated drink separating component (7) and superheater (5)Be communicated with, superheater (5) is communicated with the steam turbine (8) of steam-electric power;
It is characterized in that: described boiler body (1) is set to hollow structure, boiler body (1) comprises thisBody leading portion (9) and body back segment (10), described body leading portion (9) lateral location arranges gas approach (11),Gas approach (11) is communicated with rotary kiln afterbody (3), and body back segment (10) upper end position arranges flue gas and goes outMouth (12);
Between described drum (2) and water source (6), be communicated with by feed pipe (13), on feed pipe (13)Supply-water pump (14) is set, between drum (2) other end and evaporimeter (4), connects by inlet pipeline (15)The strong cyclic water pump (16) logical, the upper setting of inlet pipeline (15) can increased water flow circulation.
2. cement kiln exhaust heat recovery power generation bypass boiler according to claim 1, its feature existsIn: described superheater (5) is arranged on body back segment (10) position, evaporimeter (4) and superheater (5)All be set to vertically arranged structure, evaporimeter (4) comprises multiple superheater assemblies that are connected in series (17).
3. cement kiln exhaust heat recovery power generation bypass boiler according to claim 2, is characterized in that:On the inwall of described body leading portion (9), arrange can absorb from gas approach (11) and enter boiler body (1)The full film water-cooled wall (18) of high-temperature flue gas heat, described full film water-cooled wall (18) comprises along body leading portion(9) pipe fitting (19) that inwall distributes, pipe fitting (19) termination, one end install can be from water source (6) internal pump waterCooling water pump (20) connect, pipe fitting (19) other end is also communicated with water source (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410437878.1A CN104197301B (en) | 2014-08-29 | 2014-08-29 | Cement kiln exhaust heat recovery power generation bypass boiler |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410437878.1A CN104197301B (en) | 2014-08-29 | 2014-08-29 | Cement kiln exhaust heat recovery power generation bypass boiler |
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| Publication Number | Publication Date |
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| CN104197301A CN104197301A (en) | 2014-12-10 |
| CN104197301B true CN104197301B (en) | 2016-05-11 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005315492A (en) * | 2004-04-28 | 2005-11-10 | Babcock Hitachi Kk | Waste heat recovery boiler with stabilizing burner and method of operating the same |
| CN102080582A (en) * | 2010-12-06 | 2011-06-01 | 南京凯盛开能环保能源有限公司 | Coal-fired power generation and waste heat power generation coupling system for private station of cement kiln |
| CN202012897U (en) * | 2011-01-24 | 2011-10-19 | 大连易世达新能源发展股份有限公司 | Cement kiln tail bypass wind discharging exhaust-heat boiler |
| CN102393148A (en) * | 2011-11-08 | 2012-03-28 | 大连易世达新能源发展股份有限公司 | Cement kiln tail by-pass waste heat power generation device |
| CN204100212U (en) * | 2014-08-29 | 2015-01-14 | 安徽海螺川崎节能设备制造有限公司 | A kind of cement kiln exhaust heat recovery power generation bypass boiler |
-
2014
- 2014-08-29 CN CN201410437878.1A patent/CN104197301B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005315492A (en) * | 2004-04-28 | 2005-11-10 | Babcock Hitachi Kk | Waste heat recovery boiler with stabilizing burner and method of operating the same |
| CN102080582A (en) * | 2010-12-06 | 2011-06-01 | 南京凯盛开能环保能源有限公司 | Coal-fired power generation and waste heat power generation coupling system for private station of cement kiln |
| CN202012897U (en) * | 2011-01-24 | 2011-10-19 | 大连易世达新能源发展股份有限公司 | Cement kiln tail bypass wind discharging exhaust-heat boiler |
| CN102393148A (en) * | 2011-11-08 | 2012-03-28 | 大连易世达新能源发展股份有限公司 | Cement kiln tail by-pass waste heat power generation device |
| CN204100212U (en) * | 2014-08-29 | 2015-01-14 | 安徽海螺川崎节能设备制造有限公司 | A kind of cement kiln exhaust heat recovery power generation bypass boiler |
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| CN104197301A (en) | 2014-12-10 |
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