CN202118869U - Convection waste heat boiler - Google Patents
Convection waste heat boiler Download PDFInfo
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- CN202118869U CN202118869U CN2011202318627U CN201120231862U CN202118869U CN 202118869 U CN202118869 U CN 202118869U CN 2011202318627 U CN2011202318627 U CN 2011202318627U CN 201120231862 U CN201120231862 U CN 201120231862U CN 202118869 U CN202118869 U CN 202118869U
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- superheater
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Abstract
The utility model discloses a convection waste heat boiler, which relates to a boiler. The convection waste heat boiler solves problems that the prior art is high in investment and large in occupied space and a tube bundle on a heated surface can be easily blocked by ashes when an existing radiation waste heat boiler and an existing convection waste heat boiler are jointly adopted to absorb sensible heat of synthesis gas. The boiler comprises a boiler body, a superheater, a superheater upper header, a superheater lower header, a film type wall evaporator component, a water cooling wall lower header, a coarse synthesis gas connecting pipe, two evaporators, two evaporator upper headers, two evaporator lower headers, two coal economizers, two coal economizer upper headers, two coal economizer lower headers and two water cooling wall upper headers, the film type wall evaporator component and the two evaporators are disposed in the boiler body, the superheater is arranged between the upper evaporator and the lower evaporator, the two coal economizers are disposed below the film type wall evaporator component side by side, the inner lateral wall of the coarse synthesis gas connecting pipe is connected with outer lateral wall surfaces of a plurality of connecting pipes, and an access opening is arranged on the outer wall of the boiler body. The convection waste heat boiler is used for an IGCC (integrated gasification combined cycle) system.
Description
Technical field
The utility model relates to a kind of boiler.
Background technology
Waste heat boiler is the key equipment that sensible heat is recycled in the IGCC system.The crude synthesis gas of coal gasifier outlet has higher temperature and pressure in the IGCC system, and generally about 1000~1500 ℃, pressure can reach 4MPa, thereby a large amount of sensible heats are arranged, and under present condition, the coal gasification purification method is still the low temperature wet cleaning reliably.For this reason, the crude synthesis gas in coal gasifier exit must cooling before purification.This part physics sensible heat of effective recycling can improve the thermal efficiency or the generating efficiency of system greatly.From the ruuning situation and the development trend of present IGCC system, most important heat reclamation device is radiation waste heat boiler and the convection current waste heat boiler behind the coal gasification apparatus.Here, waste heat boiler is passed to working-medium water with most of sensible heat of synthesis gas, produces high pressure or middle pressure steam.For the lower outlet synthesis gas of temperature, if use radiation waste heat boiler and two equipment of convection current waste heat boiler to absorb the arrangement of synthesis gas sensible heat jointly, equipment investment is big, and it is big to take up room, and the crude synthesis gas dust burdening is at 10g/Nm
3, heated surface bundle is prone to stopped up by ash.
The utility model content
The purpose of the utility model provides a kind of convection current waste heat boiler, with solve existing when using radiation waste heat boiler and two equipment of convection current waste heat boiler to absorb the synthesis gas sensible heat jointly investment big, take up room big, heated surface bundle is easy in grey blocking problem.
The utility model is to solve the problems of the technologies described above the technical scheme of taking to be: a kind of convection current waste heat boiler of the utility model comprises boiler body, and the outer wall of boiler body is provided with a plurality of manholes, and this boiler also comprises superheater, superheater upper collecting chamber, superheater next part case, membrane wall evaporator assemblies, water-cooling wall next part case, crude synthesis gas tube connector, two evaporimeters, two evaporimeter upper collecting chambers, two evaporimeter next part casees, two economizers, two economizer upper collecting chambers, two economizer next part casees and two water-cooling wall upper collecting chambers; The membrane wall evaporator assemblies comprises a plurality of standpipes, a plurality of connecting plate and a plurality of adapter; A plurality of standpipes laterally arrange, and a plurality of standpipes surround the cavity of four prisms cylinder shape, and each rib of the cavity of four prisms cylinder shape is a slant edge; Connect through connecting plate between two adjacent standpipes; The membrane wall evaporator assemblies is arranged in the boiler body, and two water-cooling wall upper collecting chambers are arranged side by side the top at a plurality of standpipes, and water-cooling wall next part case is arranged on the bottom of a plurality of standpipes; The upper end of each standpipe is communicated with corresponding water-cooling wall upper collecting chamber; The lower end of each standpipe is communicated with water-cooling wall next part case, and the two ends of each adapter are communicated with two water-cooling wall upper collecting chambers, and said two evaporimeters are respectively to go up evaporimeter and following evaporimeter; Last evaporimeter is arranged on the interior top of cavity of four prisms cylinder shape; Following evaporimeter is arranged on the interior bottom of cavity of four prisms cylinder shape, and superheater is arranged between evaporimeter and the following evaporimeter, and the superheater upper collecting chamber is arranged on the upper end of superheater and is communicated with this superheater; Superheater next part case is arranged on the lower end of superheater and is communicated with this superheater; Said two evaporimeter upper collecting chambers are respectively the first evaporimeter upper collecting chamber and the second evaporimeter upper collecting chamber, and the first evaporimeter upper collecting chamber is arranged on upper end of evaporator and is communicated with last evaporimeter, and the second evaporimeter upper collecting chamber is arranged on down upper end of evaporator and is communicated with following evaporimeter; Said two evaporimeter next part casees are respectively the first evaporimeter next part case and the second evaporimeter next part case; The first evaporimeter next part case is arranged on the lower end of evaporimeter and is communicated with last evaporimeter, and the second evaporimeter next part case is arranged on down the lower end of evaporimeter and is communicated with following evaporimeter, and two economizers are arranged side by side below the membrane wall evaporator assemblies; Said two economizers are respectively to go up economizer and following economizer; Said two economizer upper collecting chambers are respectively the first economizer upper collecting chamber and the second economizer upper collecting chamber, and the first economizer upper collecting chamber is arranged on the upper end of economizer and is communicated with last economizer, and the second economizer upper collecting chamber is arranged on down the upper end of economizer and is communicated with following economizer; Said two economizer next part casees are respectively the first economizer next part case and the second economizer next part case; The first economizer next part case is arranged on the lower end of economizer and is communicated with last economizer, and the second economizer next part case is arranged on down the lower end of economizer and is communicated with following economizer, and the madial wall of crude synthesis gas tube connector is connected with the outer side surface of a plurality of tube connectors; Be filled with superheated steam in the superheater, all be filled with the mixture of water or water and steam in a plurality of standpipes and a plurality of adapter.
The utlity model has following beneficial effect: one, can to produce vapor (steam) temperature be 300 ℃ superheated steam to the utility model, can improve the cycle efficieny of IGCC system.Two, the utility model can be controlled flow velocity, prevent stifled ash, has improved the heat exchange efficiency of boiler.Three, the utility model is provided with the membrane wall evaporimeter at evaporimeter and superheater periphery, can guarantee that wall temperature is constant in the stove.Four, the membrane wall evaporimeter is not arranged in the economizer periphery in the utility model; Simple in structure, compact, soldered is few, flow velocity is fast, the time of staying is short; Compare with other forms of waste heat boiler, the metal wastage of its unit heat exchange area is less, can satisfy explained hereafter and safe operation.Five, the utility model is convenient in time overhaul the removal system fault.
Description of drawings
Fig. 1 is the overall structure front view of the utility model, and Fig. 2 is the A-A cutaway view of Fig. 1, and Fig. 3 is the B-B cutaway view of Fig. 1, and Fig. 4 is the C-C cutaway view of Fig. 1, and Fig. 5 is the D-D cutaway view of Fig. 1, and Fig. 6 is the E-E cutaway view of Fig. 1.
The specific embodiment
The specific embodiment one: combine Fig. 1~Fig. 6 that this embodiment is described, a kind of convection current used heat of this embodiment comprises boiler body 1, and the outer wall of boiler body 1 is provided with a plurality of manholes 15; It is characterized in that: this boiler also comprises superheater 5, superheater upper collecting chamber 6, superheater next part case 7, membrane wall evaporator assemblies 11, water-cooling wall next part case 13, crude synthesis gas tube connector 14, two evaporimeters 2, two evaporimeter upper collecting chambers 3, two evaporimeter next part casees 4, two economizers 8, two economizer upper collecting chambers 9, two economizer next part casees 10 and two water-cooling wall upper collecting chambers 12, and membrane wall evaporator assemblies 11 comprises a plurality of standpipe 11-1, a plurality of connecting plate 11-2 and a plurality of adapter 11-3, and a plurality of standpipe 11-1 laterally arrange; A plurality of standpipe 11-1 surround the cavity of four prisms cylinder shape; Each rib of the cavity of four prisms cylinder shape is a slant edge, connects through connecting plate 11-2 between two adjacent standpipes, and membrane wall evaporator assemblies 11 is arranged in the boiler body 1; Two water-cooling wall upper collecting chambers 12 are arranged side by side the top at a plurality of standpipe 11-1; Water-cooling wall next part case 13 is arranged on the bottom of a plurality of standpipe 11-1, and the upper end of each standpipe 11-1 is communicated with corresponding water-cooling wall upper collecting chamber 12, and the lower end of each standpipe 11-1 is communicated with water-cooling wall next part case 13; Each two ends of taking over 11-3 is communicated with two water-cooling wall upper collecting chambers 12; Said two evaporimeters 2 are respectively to go up evaporimeter 2-1 and following evaporimeter 2-2, and last evaporimeter 2-1 is arranged on the interior top of cavity of four prisms cylinder shape, and following evaporimeter 2-2 is arranged on the interior bottom of cavity of four prisms cylinder shape; Superheater 5 is arranged between evaporimeter 2-1 and the following evaporimeter 2-2; Superheater upper collecting chamber 6 is arranged on the upper end of superheater 5 and is communicated with this superheater 5, and superheater next part case 7 is arranged on the lower end of superheater 5 and is communicated with this superheater 5, and said two evaporimeter upper collecting chambers 3 are respectively the first evaporimeter upper collecting chamber 3-1 and the second evaporimeter upper collecting chamber 3-2; The first evaporimeter upper collecting chamber 3-1 is arranged on the upper end of evaporimeter 2-1 and is communicated with last evaporimeter 2-1; The second evaporimeter upper collecting chamber 3-2 is arranged on down the upper end of evaporimeter 2-2 and is communicated with following evaporimeter 2-2, and said two evaporimeter next part casees 4 are respectively the first evaporimeter next part case 4-1 and the second evaporimeter next part case 4-2, and the first evaporimeter next part case 4-1 is arranged on the lower end of evaporimeter 2-1 and is communicated with last evaporimeter 2-1; The second evaporimeter next part case 4-2 is arranged on down the lower end of evaporimeter 2-2 and is communicated with following evaporimeter 2-2; Two economizers 8 are arranged side by side below membrane wall evaporator assemblies 11, and said two economizers 8 are respectively to go up economizer 8-1 and following economizer 8-2, and said two economizer upper collecting chambers 9 are respectively the first economizer upper collecting chamber 9-1 and the second economizer upper collecting chamber 9-2; The first economizer upper collecting chamber 9-1 is arranged on the upper end of economizer 8-1 and is communicated with last economizer 8-1; The second economizer upper collecting chamber 9-2 is arranged on down the upper end of economizer 8-2 and is communicated with following economizer 8-2, and said two economizer next part casees 10 are respectively the first economizer next part case 10-1 and the second economizer next part case 10-2, and the first economizer next part case 10-1 is arranged on the lower end of economizer 8-1 and is communicated with last economizer 8-1; The second economizer next part case 10 is arranged on down the lower end of economizer 8-2 and is communicated with following economizer 8-2; The madial wall of crude synthesis gas tube connector 14 is connected with the outer side surface of a plurality of tube connector 11-3, is filled with superheated steam in the superheater 5, all is filled with the mixture of water or water and steam in a plurality of standpipe 11-1 and a plurality of adapter 11-3.
The specific embodiment two: combine Fig. 1 and Fig. 4 that this embodiment is described, the said superheater 5 of this embodiment is a multiloop superheater.So be provided with, heat exchange efficiency is high, meets design requirement.Other is identical with the specific embodiment one.
The specific embodiment three: combine Fig. 1, Fig. 3 and Fig. 5 that this embodiment is described, the said evaporimeter 2 of this embodiment is the coiled pipe evaporimeter.So be provided with, heat exchange efficiency is high, meets design requirement.Other is identical with the specific embodiment one.
The specific embodiment four: combine Fig. 1 and Fig. 6 that this embodiment is described, the said economizer 8 of this embodiment is a loop economizer.So be provided with, heat exchange efficiency is high, meets design requirement.Other is identical with the specific embodiment one, two or three.
The specific embodiment five: combine Fig. 1 that this embodiment is described; The quantity of this embodiment manhole 15 is four; Four manholes 15 that the position is set is following: go up between evaporimeter 2-1 and the superheater 5 manhole 15 be set; Between superheater 5 and the following evaporimeter 2-2 manhole 15 is set, between following evaporimeter 2-2 and the last economizer 8-1 manhole 15 is set, between last economizer 8-1 and the following economizer 8-2 manhole 15 is set.So be provided with, maintenance is convenient, meets design requirement.Other is identical with the specific embodiment one.
The course of work: system's feedwater at first gets in the second economizer next part case 10-2 through feedwater piping, gets into economizer 8-2 down again, again through getting into the second economizer upper collecting chamber 9-2; Get into the first economizer next part case 10-1 through pipeline, then, economizer 8-1 in the entering; Then, be pooled to the first economizer upper collecting chamber 9-1, draw and send into drum through fairlead; Saturation water in the drum is sent into two evaporimeters 2 and membrane wall evaporator assemblies 11 respectively through common downcomer; Form two closed circuits, the saturated vapor of generation sends back in the drum through fairlead, and the saturated vapor after separating through carbonated drink is through the bottom-up entering superheater 5 of steam inlet pipe; Crude synthesis gas gets into a plurality of standpipe 11-1 through crude synthesis gas tube connector 14 and surrounds in the cavity of four prisms cylinder shape; The crude synthesis gas temperature of synthesis gas tube connector 14 inlets is 900 ℃, and crude synthesis gas is along flowing downward in the cavity of four prisms cylinder shape afterwards, and the water vapour in the water in the economizer 8, the evaporimeter 2 in saturation water, the superheater, standpipe 11-1 and bottom-up the flowing of water of taking in the 11-3 are carried out heat exchange with crude synthesis gas formation adverse current respectively; Last crude synthesis gas is discharged from boiler body 1 lower end; Temperature is reduced to about 200 ℃, flows to the crude synthesis gas cleaning system, and the qualified superheated steam of quality that superheater produces is drawn through jet chimney; Be provided with direct-contact desuperheater in the superheater outlet, regulate superheat steam temperature.
Claims (5)
1. convection current waste heat boiler, said boiler comprises boiler body (1), the outer wall of boiler body (1) is provided with a plurality of manholes (15); It is characterized in that: this boiler also comprises superheater (5), superheater upper collecting chamber (6), superheater next part case (7), membrane wall evaporator assemblies (11), water-cooling wall next part case (13), crude synthesis gas tube connector (14), two evaporimeters (2), two evaporimeter upper collecting chambers (3), two evaporimeter next part casees (4), two economizers (8), two economizer upper collecting chambers (9), two economizer next part casees (10) and two water-cooling wall upper collecting chambers (12), and membrane wall evaporator assemblies (11) comprises a plurality of standpipes (11-1), a plurality of connecting plate (11-2) and a plurality of adapter (11-3), and a plurality of standpipes (11-1) laterally arrange; A plurality of standpipes (11-1) surround the cavity of four prisms cylinder shape; Each rib of the cavity of four prisms cylinder shape is a slant edge, connects through connecting plate (11-2) between two adjacent standpipes, and membrane wall evaporator assemblies (11) is arranged in the boiler body (1); Two water-cooling wall upper collecting chambers (12) are arranged side by side the top at a plurality of standpipes (11-1); Water-cooling wall next part case (13) is arranged on the bottom of a plurality of standpipes (11-1), and the upper end of each standpipe (11-1) is communicated with corresponding water-cooling wall upper collecting chamber (12), and the lower end of each standpipe (11-1) is communicated with water-cooling wall next part case (13); The two ends of each adapter (11-3) are communicated with two water-cooling wall upper collecting chambers (12); Said two evaporimeters (2) are respectively to go up evaporimeter (2-1) and following evaporimeter (2-2), and last evaporimeter (2-1) is arranged on the interior top of cavity of four prisms cylinder shape, and following evaporimeter (2-2) is arranged on the interior bottom of cavity of four prisms cylinder shape; Superheater (5) is arranged between evaporimeter (2-1) and the following evaporimeter (2-2); Superheater upper collecting chamber (6) is arranged on the upper end of superheater (5) and is communicated with this superheater (5), and superheater next part case (7) is arranged on the lower end of superheater (5) and is communicated with this superheater (5), and said two evaporimeter upper collecting chambers (3) are respectively the first evaporimeter upper collecting chamber (3-1) and the second evaporimeter upper collecting chamber (3-2); The first evaporimeter upper collecting chamber (3-1) is arranged on the upper end of evaporimeter (2-1) and is communicated with last evaporimeter (2-1); The second evaporimeter upper collecting chamber (3-2) is arranged on down the upper end of evaporimeter (2-2) and is communicated with following evaporimeter (2-2), and said two evaporimeter next part casees (4) are respectively the first evaporimeter next part case (4-1) and the second evaporimeter next part case (4-2), and the first evaporimeter next part case (4-1) is arranged on the lower end of evaporimeter (2-1) and is communicated with last evaporimeter (2-1); The second evaporimeter next part case (4-2) is arranged on down the lower end of evaporimeter (2-2) and is communicated with following evaporimeter (2-2); Two economizers (8) are arranged side by side in the below of membrane wall evaporator assemblies (11), and said two economizers (8) are respectively to go up economizer (8-1) and following economizer (8-2), and said two economizer upper collecting chambers (9) are respectively the first economizer upper collecting chamber (9-1) and the second economizer upper collecting chamber (9-2); The first economizer upper collecting chamber (9-1) is arranged on the upper end of economizer (8-1) and is communicated with last economizer (8-1); The second economizer upper collecting chamber (9-2) is arranged on down the upper end of economizer (8-2) and is communicated with following economizer (8-2), and said two economizer next part casees (10) are respectively the first economizer next part case (10-1) and the second economizer next part case (10-2), and the first economizer next part case (10-1) is arranged on the lower end of economizer (8-1) and is communicated with last economizer (8-1); The second economizer next part case (10) is arranged on down the lower end of economizer (8-2) and is communicated with following economizer (8-2); The madial wall of crude synthesis gas tube connector (14) is connected with the outer side surface of a plurality of tube connectors (11-3), and superheater is filled with superheated steam in (5), all is filled with the mixture of water or water and steam in a plurality of standpipes (11-1) and a plurality of adapter (11-3).
2. a kind of convection current waste heat boiler according to claim 1 is characterized in that: said superheater (5) is a multiloop superheater.
3. a kind of convection current waste heat boiler according to claim 1 is characterized in that: said evaporimeter (2) is the coiled pipe evaporimeter.
4. according to claim 1,2 or 3 described a kind of convection current waste heat boilers, it is characterized in that: said economizer (8) is a loop economizer.
5. a kind of convection current waste heat boiler according to claim 1; It is characterized in that: the quantity of manhole (15) is four; Four manholes (15) that the position is set is following: go up between evaporimeter (2-1) and the superheater (5) manhole (15) be set; Between superheater (5) and the following evaporimeter (2-2) manhole (15) is set; Between following evaporimeter (2-2) and the last economizer (8-1) manhole (15) is set, between last economizer (8-1) and the following economizer (8-2) manhole (15) is set.
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CN2011202318627U CN202118869U (en) | 2011-07-04 | 2011-07-04 | Convection waste heat boiler |
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CN2011202318627U CN202118869U (en) | 2011-07-04 | 2011-07-04 | Convection waste heat boiler |
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CN2011202318627U Expired - Fee Related CN202118869U (en) | 2011-07-04 | 2011-07-04 | Convection waste heat boiler |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102865567A (en) * | 2012-10-09 | 2013-01-09 | 大连科林能源工程技术开发有限公司 | Integrated gasification combined cycle (IGCC) process gas waste heat boiler |
CN103013577A (en) * | 2012-12-11 | 2013-04-03 | 中国东方电气集团有限公司 | Integral rotational radiation preheating mixing energy utilization device with flue gas chilling |
CN103013582A (en) * | 2012-12-11 | 2013-04-03 | 中国东方电气集团有限公司 | Integral bunchy radiation preheating mixing-type energy utilization device with flue gas chilling |
CN103013579A (en) * | 2012-12-11 | 2013-04-03 | 中国东方电气集团有限公司 | Integrated sarciniform radiation preheating hybrid heat recovery device with flue gas chilling function |
CN103013578A (en) * | 2012-12-11 | 2013-04-03 | 中国东方电气集团有限公司 | Integrated bunch type radiant boiler and preheating boiler mixed energy utilization device |
CN103013580A (en) * | 2012-12-11 | 2013-04-03 | 中国东方电气集团有限公司 | Integrated bunch type radiant boiler and preheating boiler mixed heat recovery device |
CN110878937A (en) * | 2019-12-12 | 2020-03-13 | 北京航天迈未科技有限公司 | Steam superheater and use method thereof |
CN112629270A (en) * | 2020-08-28 | 2021-04-09 | 广西鱼峰水泥股份有限公司 | Low-temperature waste heat power generation AQC boiler |
CN115317938A (en) * | 2022-08-24 | 2022-11-11 | 佳木斯大学 | Scraper evaporator |
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2011
- 2011-07-04 CN CN2011202318627U patent/CN202118869U/en not_active Expired - Fee Related
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102865567A (en) * | 2012-10-09 | 2013-01-09 | 大连科林能源工程技术开发有限公司 | Integrated gasification combined cycle (IGCC) process gas waste heat boiler |
CN102865567B (en) * | 2012-10-09 | 2014-07-16 | 大连科林能源工程技术开发有限公司 | Integrated gasification combined cycle (IGCC) process gas waste heat boiler |
CN103013577B (en) * | 2012-12-11 | 2014-07-02 | 中国东方电气集团有限公司 | Integral rotational radiation preheating mixing energy utilization device with flue gas chilling |
CN103013579A (en) * | 2012-12-11 | 2013-04-03 | 中国东方电气集团有限公司 | Integrated sarciniform radiation preheating hybrid heat recovery device with flue gas chilling function |
CN103013578A (en) * | 2012-12-11 | 2013-04-03 | 中国东方电气集团有限公司 | Integrated bunch type radiant boiler and preheating boiler mixed energy utilization device |
CN103013580A (en) * | 2012-12-11 | 2013-04-03 | 中国东方电气集团有限公司 | Integrated bunch type radiant boiler and preheating boiler mixed heat recovery device |
CN103013582A (en) * | 2012-12-11 | 2013-04-03 | 中国东方电气集团有限公司 | Integral bunchy radiation preheating mixing-type energy utilization device with flue gas chilling |
CN103013577A (en) * | 2012-12-11 | 2013-04-03 | 中国东方电气集团有限公司 | Integral rotational radiation preheating mixing energy utilization device with flue gas chilling |
CN103013582B (en) * | 2012-12-11 | 2014-08-27 | 中国东方电气集团有限公司 | Integral bunchy radiation preheating mixing-type energy utilization device with flue gas chilling |
CN103013579B (en) * | 2012-12-11 | 2014-08-27 | 中国东方电气集团有限公司 | Integrated sarciniform radiation preheating hybrid heat recovery device with flue gas chilling function |
CN110878937A (en) * | 2019-12-12 | 2020-03-13 | 北京航天迈未科技有限公司 | Steam superheater and use method thereof |
CN112629270A (en) * | 2020-08-28 | 2021-04-09 | 广西鱼峰水泥股份有限公司 | Low-temperature waste heat power generation AQC boiler |
CN115317938A (en) * | 2022-08-24 | 2022-11-11 | 佳木斯大学 | Scraper evaporator |
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Granted publication date: 20120118 Termination date: 20130704 |