CN203653399U - System for drying sludge by using waste heat of gas turbine - Google Patents
System for drying sludge by using waste heat of gas turbine Download PDFInfo
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- CN203653399U CN203653399U CN201320670343.XU CN201320670343U CN203653399U CN 203653399 U CN203653399 U CN 203653399U CN 201320670343 U CN201320670343 U CN 201320670343U CN 203653399 U CN203653399 U CN 203653399U
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Abstract
The utility model provides a system for drying sludge by using waste heat of a gas turbine. The gas turbine is connected with a generator; a flue gas outlet of the gas turbine is communicated with a waste heat boiler; a steam outlet of the waste heat boiler is communicated with a steam turbine; the steam turbine is connected with the generator; a steam extracting pipe of the steam turbine is communicated with the inlet of a heating surface pipe of an internally-heated fluidized bed dryer; the air outlet of an air heater is communicated with the air inlet of the internally-heated fluidized bed dryer; wet sludge enters in the internally-heated fluidized bed dryer through a wet sludge pipe, flows outside the heating surface pipe, and then is discharged into a dry sludge pipe through a discharge port after being dried; steam is produced by using the fuel gas waste heat of the gas turbine to drive a steam turbine generator unit to generate power, the waste heat of the steam turbine is used as a heat source for drying the sludge, so that the cascade utilization of energy sources is realized, the heat efficiency is high, and the smelly gas is not discharged; fluidized air of the fluidized bed dryer is preheated by hot water, so that the utilization rate of energy sources is further improved, and the environmental problems of underground water pollution and the like due to sludge landfill and land utilization are effectively avoided.
Description
Technical field
The utility model relates to waste heat recovery and drying sludge field, particularly a kind of system of utilizing internal combustion turbine waste heat sludge-drying.
Background technology
(1) output of sewage sludge and harm thereof
Along with the quick propelling of Development of China's Urbanization, the sewage disposal industry of China is developed rapidly, sewage treatment capacity and processing rate rapid development, and the output of sewage sludge increases sharply.By the end of the end of the year 2009,1992 of the urban wastewater treatment firms that China puts into operation, the amount of disposing of sewage 28,000,000,000 m
3, approximately 2,005 ten thousand tons, the mud of generation water ratio 80%.Along with the increase of the level of urbanization and sewage load, sludge quantity will be broken through 3,000 ten thousand tons very soon.The composition of mud and chemical property complexity, both comprised organism, plant nutrient ingredient etc., also comprises the objectionable impuritiess such as heavy metal.The Hygienic Index of mud mainly comprises total plate count, excrement colibacillus group number, parasitic ovum content etc.Mud contains the hazardous and noxious substances such as pathogenic agent, heavy metal and persistent organism, without effectively processing and dispose, very easily underground water, soil etc. is caused to secondary pollution.
Through the development of decades, the sludge treatment disposal technology of the developed regions such as American-European, Japanese and country has been mature on the whole, and relevant laws and regulations and technological standard are substantially perfect.Main technological route comprises: burning disposal, sanitary landfill, soil utilization etc., can realize the minimizing of mud, the object of innoxious, stabilization.
According to incompletely statistics, current national urban wastewater treatment firm mud only has small portion to carry out sanitary landfill, soil utilization, burning and building materials utilization etc., and major part is not carried out normalized processing disposal, the environmental safety and the public health that directly threaten China, reduce the environmental benefit of sewage treatment facility greatly.
(2) basic demand of sludge treatment
Sludge treatment should meet safety and environmental protection, recycle, the principle such as energy-saving and cost-reducing.In the treating processes of mud, mud contains the hazardous and noxious substances such as pathogenic agent, heavy metal and persistent organism must reach pollution control criterion; Make full use of organic matter contained in mud, various nutritive element and energy, the organic matter in mud and nutritive element are added in soil, or reclaim the energy in mud by the technology such as anaerobic digestion or burning; Should avoid adopting the processing disposal technology that consumes a large amount of high-quality clean energy, material and land resources, process disposal to realize mud low-carbon (LC).
The thermal source that country encourages to utilize biogas heat energy, rubbish and the sludge incineration waste heat, power station waste heat or other waste heats that produce in anaerobic sludge digestion process to dispose as sludge treatment.
(3) sludge disposal technology
Sludge disposal comprises the modes such as soil utilization, burning, landfill.
The soil utilization of mud comprises for land reclamation, for afforestation, for agricultural etc.But the soil utilization of mud has very strict requirement to the shale of mud, otherwise may produce secondary pollution to underground water and surrounding environment.
The landfill disposal of mud not only needs to take a large amount of soils, and landfill yard also discharges a large amount of foul gass, methane isothermal chamber gas, if mishandling, also can cause groundwater pollution.
The most frequently used scheme of sludge incineration treatment technology is: the wet mud that is first 80% left and right to water ratio is dried, and dried mud enters incinerator and completes burning disposal.The burning disposal of mud can farthest realize minimizing and stabilization, almost kills in mud 100% germ, and innoxious degree is high, but also can carry out thermal utilization to the combustiblematerials in mud, realizes the resource utilization of sludge heat energy.But, in the drying process of sludge incineration processing, needing to consume coal-fired grade for high-grade energy, cost is higher; In addition, wet drying sludge process need consumption fire coal provides the energy, the atmospheric polluting materials such as fired coal combustion discharge sulfurous gas, oxynitride, dust.
(4) UTILIZATION OF VESIDUAL HEAT IN of internal combustion turbine
Utilize internal combustion turbine to carry out combustion and steam combined cycle, can make the generating efficiency of combustion gas bring up to 45% to 55% left and right, if adopt extraction condensing type steam turbine, the energy utilization rate of combustion gas can be up to more than 70%.Although combustion and steam combined cycle is in conjunction with sucking condensing turbine, the utilization ratio of the energy can be up to more than 70%, but with the supporting waste heat boiler funnel temperature of internal combustion turbine generally up to more than 120 DEG C, so the residual heat resources of low temperature are difficult to utilize, generally can only be discharged in atmosphere, not only cause energy dissipation, also produce environmental thermal pollution problem.
Utility model content
The purpose of this utility model is to overcome prior art defect, provides a kind of energy utilization rate high, and outer row has that gas with foreign flavor, funnel temperature are low, the system of utilizing internal combustion turbine waste heat sludge-drying of safety and environmental protection.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of system of utilizing internal combustion turbine waste heat sludge-drying, comprise internal combustion turbine, internal combustion turbine is connected with generator, internal combustion turbine exhanst gas outlet waste heat boiler is connected, in waste heat boiler, be provided with vapour generator and water-heater, waste heat boiler vapour outlet is connected with steam turbine, steam turbine is connected with generator, the extraction steam pipe of steam turbine is connected with the heating surface tube entrance of internal heat type fluidized bed dryer, turbine discharge mouth is connected with condenser, the heating surface tube outlet of internal heat type fluidized bed dryer is connected with vapour generator water-in through service pump after converging with condenser outlet, the water heater hot-water outlet of described waste heat boiler is connected with airheater, and airheater cooling water outlet is connected with the water-in of water-heater by recycle pump, airheater air outlet is connected with internal heat type fluidized bed dryer blast inlet by heating duct, internal heat type fluidized bed dryer air outlet is connected with fly-ash separator in turn, induced draft fan and steam condensing works, the pneumatic outlet of steam condensing works is communicated with airheater inlet mouth by gas blower, blower export is also connected with waste discharge tracheae, internal heat type fluidized bed dryer opening for feed connects wet sludge pipe, discharge port connects dewatered sludge pipe, wet mud enters into internal heat type fluidized bed dryer through wet sludge pipe, flow outward at heating surface tube, after dry, enter dewatered sludge pipe from discharge port.
Described steam condensing works is spray column, and induced draft fan is connected with the inlet mouth of spray column, and the air outlet of spray column is connected with gas blower; In spray column, be disposed with from top to bottom mist eliminator, spray header and water collecting basin, be provided with interchanger in water collecting basin, water collecting basin is connected with spray header by recycle pump, and water collecting basin is also provided with water shoot.
Described steam condensing works pneumatic outlet is connected with mixing wind tube, and mixing wind tube is communicated with gas blower, and airheater air outlet is divided into two-way, and a road is connected with internal heat type fluidized bed dryer blast inlet, and another road is communicated with mixing wind tube.
Described waste discharge tracheae outlet is connected with gas sweetening or odor removal.
The utility model compared with prior art, has the following advantages:
(1) utilize the fume afterheat of internal combustion turbine to produce the generating of Steam Actuation turbine driven set, the thermal source of waste heat as mud internal heat type fluidized bed dryer that draw gas of steam turbine, realize energy cascade utilization, thermo-efficiency is high, can save the fuel cost of drying sludge, also avoid the emission problem of the atmospheric polluting materials such as sulfurous gas, oxynitride and dust that burning coal sludge-drying produces.
(2) utilize fluidized bed dryer and sealing and circulating fluidized wind system, the drying treatment amount of mud is large, failure rate is low, can realize continuous and steady operation, and not outer row has the gas of peculiar smell in a large number.
(3) low-temperature flue gas (the 120 DEG C following) waste heat that makes full use of discharge of gas turbine is produced hot water, utilizes hot water to preheat the fluidized wind of fluidized bed dryer, and energy utilization rate further improves.
(4) after dry, the water ratio of mud is lower than 10%, and innoxious, minimizing, the stabilization treatment of mud are guaranteed, the storage of dewatered sludge, convenient transportation, and the range of application of dewatered sludge increases considerably.The environmental problem such as occupation of land problem and groundwater pollution of effectively avoiding Sludge landfill and soil utilization to cause.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
In figure: 1-internal combustion turbine, 2-flue, 3-vapour generator, 4-waste heat boiler, 5-water-heater, 6-smoke exhaust pipe, 7-recycle pump, 8-airheater, 9-gas blower, 10-mixing wind tube, 12-water shoot, 13-water collecting basin, 14-interchanger, 15-spray column, 16-recirculating air arm, 17-dewatered sludge pipe, 18-circulating pipe, 19-heating duct, 20-drain pipe, 21-condensate pipe, 22-deoxygenator, 23-service pump, 24-spray header, 25-mist eliminator, 26-exhaust duct, 27-induced draft fan, 28-fly-ash separator, 29-circulation airduct, the 30-sludge pipe that wets, 31-heating surface tube, 32-internal heat type fluidized bed dryer, 33-extraction steam pipe, 34-condenser, 35-generator, 36-steam turbine, 37-vapour pipe, 38-gas line, 39-waste discharge tracheae, 40-blast main.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Referring to Fig. 1, the utility model mainly comprises internal combustion turbine 1, waste heat boiler 4, steam turbine 36, internal heat type fluidized bed dryer 32, spray column 15, airheater 8 etc.
Internal combustion turbine 1 is connected with generator 35, internal combustion turbine 1 exhanst gas outlet is connected with waste heat boiler 4 by flue 2, in waste heat boiler 4, be provided with vapour generator 3 and water-heater 5, and be connected with smoke exhaust pipe 6, waste heat boiler 4 vapour outlets are connected with steam turbine 36, steam turbine 36 is connected with generator 35, the extraction steam pipe 33 of steam turbine 36 is connected with heating surface tube 31 entrances of internal heat type fluidized bed dryer 32, steam turbine 36 steam drains are connected with condenser 34, and be connected with deoxygenator 22 by condensate pipe 21, the heating surface tube 31 of internal heat type fluidized bed dryer 32 exports through drain pipe 20 and is connected with deoxygenator 22, deoxygenator 22 is connected with vapour generator 3 water-ins through service pump 23, water-heater 5 hot water outlets of described waste heat boiler 4 are connected with airheater 8, and airheater 8 cooling water outlets are connected with the water-in of water-heater 5 by recycle pump 7, airheater 8 air outlets are connected with internal heat type fluidized bed dryer 32 blast inlets, internal heat type fluidized bed dryer 32 air outlets are connected with fly-ash separator 28 in turn, induced draft fan 27 and steam condensing works, the pneumatic outlet of steam condensing works is communicated with airheater 8 inlet mouths by gas blower 9, gas blower 9 exports and is also connected with waste discharge tracheae 39, described waste discharge tracheae 39 outlets are connected with gas sweetening or odor removal, the waste gas of waste air tube drainage can be introduced sludge incinerating boiler and burn, or introduce internal combustion turbine 1 and burn, or through the deodorizing of deodorizing sterilizing device, after sterilization, be directly discharged in atmosphere, internal heat type fluidized bed dryer 32 opening for feeds connect wet sludge pipe 30, discharge port row connects dewatered sludge pipe 17, wet mud enters into internal heat type fluidized bed dryer 32 through wet sludge pipe 30, outer mobile at heating surface tube 31, after dry, enter dewatered sludge pipe 17 from discharge port.
Further, described steam condensing works is spray column 15, and induced draft fan 27 is connected with the inlet mouth of spray column 15, and the air outlet of spray column 15 is connected with gas blower 9; In spray column 15, be disposed with from top to bottom mist eliminator 25, spray header 24 and water collecting basin 13, be provided with interchanger 14 in water collecting basin 13, water collecting basin 13 is connected with spray header 24 by recycle pump 7, and water collecting basin 13 is also provided with water shoot 12.
Described steam condensing works pneumatic outlet is connected with mixing wind tube 10, and mixing wind tube 10 is communicated with gas blower 9, and airheater 8 air outlets are divided into two-way, and a road is connected with internal heat type fluidized bed dryer 32 blast inlets, and another road is communicated with mixing wind tube 10.
The fume afterheat of discharge of gas turbine is produced steam and hot water, drawing gas as the thermal source of fluidized bed dryer of the generating of Steam Actuation turbine driven set, steam turbine, hot water preheats the fluidized wind of fluidized bed dryer, fluidized wind sealing and circulating is used, and the steam that wet drying sludge produces is outer row after the interior condensation of spray column 15; High-grade energy generating, low-grade energy dry wet mud, high efficiency of energy, cascade utilization; Low-temperature flue gas waste heat is made full use of, and energy utilization rate further improves; Wet drying sludge does not consume high-grade energy, and drying cost is low; Wet drying sludge does not use separately fuel, does not discharge pollutants; Fluidized wind recycles, and not outer row has gas with foreign flavor; System stability, production continuously, dry tenacity is large, and the dry amount of mud is large.Therefore, the utility model can be realized drying sludge, the object that reaches energy-saving and emission-reduction and develop a circular economy under the prerequisite of safety, environmental protection and economy.
Disclose a kind of method of utilizing internal combustion turbine waste heat sludge-drying simultaneously, comprised the following steps:
(1), the gas line 38 of described internal combustion turbine 1 and blast main 40 provide combustion gas and air burning to internal combustion turbine 1 respectively, flue gas propelling gas turbine engine 1 high speed rotating of High Temperature High Pressure also drives generator 35 to generate electricity, internal combustion turbine 1 discharges the flue gas of 450 DEG C to 600 DEG C and enters waste heat boiler 4 by flue 2, flue gas is reduced to below 200 DEG C and produces medium temperature and medium pressure to temperature after vapour generator 3 heat releases, and pressure is greater than the steam that 2.5MPa, temperature are greater than 400 DEG C; Flue gas after cooling is further to water-heater 5 heat releases, and funnel temperature is discharged from smoke exhaust pipe 6 below being further reduced to 100 DEG C, and flue gas low-temperature waste heat is made full use of;
(2), the medium temperature and medium pressure steam that produces of vapour generator 3 enters steam turbine 36 by vapour pipe 37 and pushing turbine 36 drives generator 35 to generate electricity, steam turbine 36 is extracted part steam out and is entered internal heat type fluidized bed dryer 32 through extraction steam pipe 33; The exhaust steam that steam turbine 36 discharges enters condenser 34 and condenses into water, enters deoxygenator 22 through condensate pipe 21; Enter into drawing gas of internal heat type fluidized bed dryer 32 interior mobile at heating surface tube 31, the wet mud that enters into internal heat type fluidized bed dryer 32 through wet sludge pipe 30 is outer mobile at heating surface tube 31, interior mobile the drawing gas of heating surface tube 31 condenses into water after the outer mobile wet mud heat release of heating surface tube 31, and enters into deoxygenator 22 through drain pipe 20 and complete deoxygenation processing; Deaerated water in deoxygenator 22 enters into vapour generator 3 through service pump 23, is transformed into medium temperature and medium pressure steam and enters into again steam turbine 36 through vapour pipe 37 from flue gas after heat absorption, completes circulation; Internal heat type fluidized bed dryer 32 arranges wet sludge pipe 30, dewatered sludge pipe 17, heating surface tube 31, and internal heat type fluidized bed dryer 32 arranges respectively heating duct 19, circulation airduct 29 is set on top in bottom.The wet mud that enters into internal heat type fluidized bed dryer 32 from wet sludge pipe 30 is full of the gap between heating surface tube 31; The hot blast that enters into internal heat type fluidized bed dryer 32 from heating duct 19 upwards flows, and drive mud between different heating surface tubes 31 to flow and in fluidization, strengthen the heat exchange between mud and heating surface tube 31, after mud heat absorption, water vapor evaporation enters in the middle of fluidized wind; Sludge-drying is discharged from dewatered sludge pipe 17; Fluidized wind carries water vapor and part mud granule leaves internal heat type fluidized bed dryer 32, enters into circulation airduct 29.
(3), the recirculating air that carries mud granule that enters in circulation airduct 29 carries out dedusting in fly-ash separator 28, the recirculating air after dedusting enters into spray column 15 through induced draft fan 27; Recycle pump 7 is transported to water collecting basin 13 inner cold waters spray header 24 and is atomized into water droplet, enter into that recirculating air in spray column 15 upwards flows, water droplet after atomization flows downward, the two countercurrent flow heat exchange, water vapor in recirculating air is cooling and condense into water and enter into water collecting basin 13; The recirculating air that contains water droplet further upwards flows and passes through mist eliminator 25, and the water droplet in recirculating air is captured down, enters into water collecting basin 13, and the recirculating air after demist leaves spray column 15 and enters into exhaust duct 26; The interior layout interchanger 14 of water collecting basin 13, continuously takes away the heat in water collecting basin 13, make the water temperature of water collecting basin 13 to maintain certain low temperature, maintain the cooling power to recirculating air; The condensed water that spray column 15 produces is discharged through water shoot 12;
The recirculating air that enters exhaust duct 26 through gas blower 9 enter into airheater 8, with carry out heat exchange from the hot water of circulating pipe 18, gas blower 9 exports and is also connected with waste discharge tracheae 39, unnecessary recirculating air is discharged through waste discharge tracheae 39, the waste gas of waste air tube drainage can be introduced sludge incinerating boiler and burn, or introduce internal combustion turbine 1 and burn, or be directly discharged in atmosphere after the deodorizing of deodorizing sterilizing device, sterilization; Recirculating air temperature is left airheater 8 after raising and is entered into heating duct 19, enters into internal heat type fluidized bed dryer 32 as fluidized wind, completes circulation; Enter into airheater 8 from the hot water of circulating pipe 18, reduce and be transformed into cold water to temperature after recirculating air heat release, cold water leaves airheater 8, enters the cooling water inlet of water-heater 5 through recycle pump 7, cold water in water-heater 5 from flue gas endothermic transition become hot water to enter into again circulating pipe 18, complete circulation.
Further, although the process demist processing before leaving spray column 15 of the recirculating air in spray column 15, because the water vapor in recirculating air is substantially in state of saturation, has certain corrodibility.Corrode for fear of exhaust duct 26, gas blower 9, airheater 8; on heating duct 19, introduce recirculating air arm 16 and be connected with exhaust duct 26; exhaust duct 26 is communicated with mixing wind tube 10; mixing wind tube 10 is communicated with gas blower 9, from heating duct 19 extension hot blasts mix, guarantee that recirculating air temperature in mixing wind tube 10 maintains the temperature of saturation of mixing water vapor wind with recirculating air to exhaust duct 26 more than.
Claims (4)
1. one kind is utilized the system of internal combustion turbine waste heat sludge-drying, it is characterized in that: comprise internal combustion turbine (1), internal combustion turbine (1) is connected with generator (35), internal combustion turbine (1) exhanst gas outlet is connected with waste heat boiler (4), in waste heat boiler (4), be provided with vapour generator (3) and water-heater (5), waste heat boiler (4) vapour outlet is connected with steam turbine (36), steam turbine (36) is connected with generator (35), the extraction steam pipe (33) of steam turbine (36) is connected with heating surface tube (31) entrance of internal heat type fluidized bed dryer (32), steam turbine (36) steam drain is connected with condenser (34), heating surface tube (31) outlet of internal heat type fluidized bed dryer (32) is connected with vapour generator (3) water-in through service pump (23) after converging with condenser (34) outlet, water-heater (5) hot water outlet of described waste heat boiler (4) is connected with airheater (8), and airheater (8) cooling water outlet is connected with the water-in of water-heater (5) by recycle pump (7),
Airheater (8) air outlet is connected with internal heat type fluidized bed dryer (32) blast inlet, internal heat type fluidized bed dryer (32) air outlet is connected with fly-ash separator (28), induced draft fan (27) and steam condensing works in turn, the pneumatic outlet of steam condensing works is communicated with airheater (8) inlet mouth by gas blower (9), and gas blower (9) outlet is also connected with waste discharge tracheae (39);
Internal heat type fluidized bed dryer (32) opening for feed connects wet sludge pipe (30), discharge port connects dewatered sludge pipe (17), wet mud enters into internal heat type fluidized bed dryer (32) through wet sludge pipe (30), after flowing, being dried, enters dewatered sludge pipe (17) from discharge port outside heating surface tube (31).
2. the system of utilizing internal combustion turbine waste heat sludge-drying according to claim 1, it is characterized in that: described steam condensing works is spray column (15), induced draft fan (27) is connected with the inlet mouth of spray column (15), and the air outlet of spray column (15) is connected with gas blower (9); In spray column (15), be disposed with from top to bottom mist eliminator (25), spray header (24) and water collecting basin (13), in water collecting basin (13), be provided with interchanger (14), water collecting basin (13) is connected with spray header (24) by recycle pump (7), and water collecting basin (13) is also provided with water shoot (12).
3. the system of utilizing internal combustion turbine waste heat sludge-drying according to claim 1 and 2, it is characterized in that: described steam condensing works pneumatic outlet is connected with mixing wind tube (10), mixing wind tube (10) is communicated with gas blower (9), airheater (8) air outlet is divided into two-way, one tunnel is connected with internal heat type fluidized bed dryer (32) blast inlet, and another road is communicated with mixing wind tube (10).
4. the system of utilizing internal combustion turbine waste heat sludge-drying according to claim 1 and 2, is characterized in that: described waste discharge tracheae (39) outlet is connected with gas sweetening or odor removal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320670343.XU CN203653399U (en) | 2013-10-28 | 2013-10-28 | System for drying sludge by using waste heat of gas turbine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320670343.XU CN203653399U (en) | 2013-10-28 | 2013-10-28 | System for drying sludge by using waste heat of gas turbine |
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| CN203653399U true CN203653399U (en) | 2014-06-18 |
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| CN201320670343.XU Expired - Fee Related CN203653399U (en) | 2013-10-28 | 2013-10-28 | System for drying sludge by using waste heat of gas turbine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104176897A (en) * | 2014-08-27 | 2014-12-03 | 无锡市杰家化工装备有限公司 | Environment-friendly and energy-saving sludge high-temperature carbonization system |
| CN104176898A (en) * | 2014-08-29 | 2014-12-03 | 凤阳海泰科能源环境管理服务有限公司 | Sludge drying system and method |
| CN104405461A (en) * | 2014-10-13 | 2015-03-11 | 中信重工机械股份有限公司 | Organic working medium Rankine cycle waste heat power generation system |
-
2013
- 2013-10-28 CN CN201320670343.XU patent/CN203653399U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104176897A (en) * | 2014-08-27 | 2014-12-03 | 无锡市杰家化工装备有限公司 | Environment-friendly and energy-saving sludge high-temperature carbonization system |
| CN104176898A (en) * | 2014-08-29 | 2014-12-03 | 凤阳海泰科能源环境管理服务有限公司 | Sludge drying system and method |
| CN104176898B (en) * | 2014-08-29 | 2015-10-28 | 凤阳海泰科能源环境管理服务有限公司 | A kind of sludge drying system and method |
| CN104405461A (en) * | 2014-10-13 | 2015-03-11 | 中信重工机械股份有限公司 | Organic working medium Rankine cycle waste heat power generation system |
| CN104405461B (en) * | 2014-10-13 | 2016-02-03 | 中信重工机械股份有限公司 | A kind of organic rankie cycle afterheat generating system |
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Granted publication date: 20140618 Termination date: 20151028 |
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