CN103539332B - A kind of sludge anhydration burning generating integrated system and method - Google Patents
A kind of sludge anhydration burning generating integrated system and method Download PDFInfo
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Abstract
The invention provides a kind of sludge anhydration burning generating integrated system and method, internal combustion turbine is connected with generator, internal combustion turbine smoke outlet is communicated with mud drying device, mud drying device outlet is connected with gas-solid separating device, the dewatered sludge outlet of gas-solid separating device is connected with hopper, hopper is connected with the feed-pipe of fluidized-bed combustion boiler, and fluidized-bed combustion boiler exhanst gas outlet is connected with separator, and separator solid outlet is connected with the opening for feed of fluidized-bed combustion boiler through material returning device; Utilize the thermal source of fume afterheat as sludge drying of internal combustion turbine, realize energy cascade utilization, thermo-efficiency is high, avoid the emission problems such as the sulfurous gas of burning coal dewatered sludge generation, oxynitride and dust, the polluted underground water effectively avoiding Sludge landfill and Land_use change to cause and environmental problem, the moisture percentage in sewage sludge after mummification significantly reduces, and can realize stable burning in fluidized-bed combustion boiler, do not need to add auxiliary fuel, avoid the generation of hypertoxic pollutent dioxin.
Description
Technical field
The present invention relates to sewage sludge process field, particularly a kind of sludge anhydration burning generating integrated system and method.
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, and sewage treatment capacity and processing rate rapid development, the output of sewage sludge increases sharply.By the end of the end of the year 2009, the urban wastewater treatment firm 1992 that China puts into operation, the amount of disposing of sewage 28,000,000,000 m
3, produce about 2,005 ten thousand tons, the mud of water ratio 80%.Along with the increase of the level of urbanization and sewage load, sludge quantity will break through 3,000 ten thousand tons very soon.The composition of mud and chemical property complexity, both comprised organism, plant nutrient ingredient etc., also comprised 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 disposal, very easily causes secondary pollution to underground water, soil etc.
Through the development of decades, the specific resistance to filtration 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, Land_use change etc., can realize the object of the minimizing of mud, innoxious, stabilization.
According to incompletely statistics, current national urban wastewater treatment firm mud only has small portion to carry out sanitary landfill, Land_use change, burning and building materials utilization etc., and major part does not carry out normalized process disposal, directly threaten environmental safety and the public health of China, the environmental benefit of sewage treatment facility is reduced 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 Environmental capacity standard that the hazardous and noxious substances such as pathogenic agent, heavy metal and persistent organism must reach; Make full use of organic matter, various nutritive element and energy contained in mud, 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 process disposal technology consuming a large amount of high-quality clean energy, material and land resources, dispose to realize the process of mud low-carbon (LC).
Country encourage to utilize produce in anaerobic sludge digestion process biogas heat energy, rubbish and sludge incineration waste heat, waste heat of power plant or other waste heats be as the thermal source of specific resistance to filtration.
(3) sludge disposal technology
Sludge disposal comprises the modes such as Land_use change, burning, landfill.
The Land_use change of mud comprises for land reclamation, for afforestation, for agricultural etc.But the shale of Land_use change to mud of mud has very strict requirement, otherwise secondary pollution may be produced 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 gas, methane isothermal chamber gas, if mishandling, also can cause groundwater pollution.
Sludge incineration treatment technology scheme is: first carry out mummification to the wet mud that water ratio is 80%, the mud after mummification enters incinerator and completes burning disposal.The burning disposal of mud can farthest realize minimizing and stabilization, and almost kill the germ of in mud 100%, 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 need in the drying process of sludge incineration process to consume coal-fired grade for high-grade energy, cost is higher; In addition, wet sludge anhydration process need consumption fire coal provides the energy, the atmospheric polluting materials such as coal burning discharge sulfurous gas, oxynitride, dust.
Summary of the invention
The object of the present invention is to provide a kind of utilize gas turbine power generation after the fume afterheat that discharges low cost mummification is carried out to wet mud, and the sludge anhydration burning generating integrated system utilizing the heat resource of dewatered sludge to carry out generating electricity and method.
For achieving the above object, the technical solution used in the present invention is:
A kind of sludge anhydration burning generating integrated system, comprise internal combustion turbine, internal combustion turbine is connected with generator, internal combustion turbine smoke outlet is connected with mud drying device inlet mouth, the mud import of mud drying device is communicated with mud feeding mechanism, mud drying device outlet is connected with gas-solid separating device, the dewatered sludge outlet of gas-solid separating device is connected with hopper, hopper is connected with the opening for feed of fluidized-bed combustion boiler, fluidized-bed combustion boiler is provided with the combustion air inlet and Wingdale tube cell that are communicated with burner hearth, fluidized-bed combustion boiler exhanst gas outlet is connected with separator, separator gas outlet is connected with smoke eliminator, smoke eliminator outlet is connected with induced draft fan, separator solid outlet is connected with the opening for feed of fluidized-bed combustion boiler through material returning device.
The vapour line outlet of described fluidized-bed combustion boiler is connected with steam turbine, steam turbine is connected with generator, be connected with smoke eliminator after described separator gas outlet connects interchanger, the exhaust steam outlet of steam turbine is connected with condenser, condenser is connected with interchanger cold water inlet through service pump, and interchanger vapour outlet is communicated with the vapour line entrance of fluidized-bed combustion boiler.
Described mud drying device is spray-drying tower, and spray-drying tower inlet mouth is provided with air-distributing device, and mud import is provided with spraying gun; Described mud feeding mechanism comprises slurry tank, and slurry tank connects strainer successively and is communicated with spraying gun with after sludge pump, and internal combustion turbine smoke outlet is connected with air-distributing device.
Described smoke eliminator adopts gac waste gas purification apparatus to be that gac waste gas purification apparatus is in conjunction with electric precipitator or sack cleaner in conjunction with electric precipitator or sack cleaner.
Described gas-solid separating device is deep bed filter, and deep bed filter waste gas outlet is connected with odor removal through induced draft fan, and the outlet of deep bed filter dewatered sludge is connected with hopper.
Described odor removal is UV photodissociation treating plant.
A kind of generating integrated method of sludge anhydration burning, comprises the following steps:
(1), high-pressure gas and the high-pressure air through overdraft promote turbine high speed rotating in internal combustion turbine combustion, and pushing generator generating, the flue gas finishing merit enters into direct contact heat transfer in mud drying device with the wet mud from mud feeding mechanism, most of moisture evaporation in mud enters into flue gas, mud after mummification and flue gas together leave mud drying device and enter gas-solid separating device, mud after mummification is separated in gas-solid separating device with flue gas, flue gas is discharged, and dewatered sludge is sent in hopper;
(2) dewatered sludge, in hopper enters into fluidized-bed combustion boiler, and burn with combustion air, the limestone powder of desulfuration in furnace enters into burner hearth through Wingdale tube cell, reacts with sludge incineration the SO generated
2combine generation vitriol, flue gas carries particle and leaves burner hearth and enter into separator and complete gas solid separation, the separated device of major part particle traps and returns fluid bed boiler furnace through material returning device, high-temperature flue gas leave separator enter into smoke eliminator purification up to standard after, be discharged in air through induced draft fan.
In described step (2), dewatered sludge burns at fluidized-bed combustion boiler, the high temperature and high pressure steam that fluidized-bed combustion boiler vapour line produces enters steam turbine and pushing generator generating, the exhaust steam of steam turbine discharge enters condenser and is transformed into condensed water, condensed water enters in interchanger after service pump pressurization, become superheated vapour to enter steam turbine by the further heated evolves of fluidized-bed combustion boiler, complete circulation; The high-temperature flue gas leaving separator enters into interchanger and discharges after entering into smoke eliminator purification after the heating surface heat release be arranged in wherein.
In described step (1), mud drying device is spray-drying tower, mud feeding mechanism comprises slurry tank, sludge cake through mechanical mummification stirs the mud slurries being adjusted to and can realizing being atomized in serum pot through adding water, be delivered to the spraying gun be arranged on spray-drying tower after mud slurries are filtered by sludge pump, mud slurries enter into spray-drying tower after being atomized into the sludge slurry drop with certain grain size distribution; Spray-drying tower and sludge slurry drop direct contact heat transfer is entered into after the flue gas that internal combustion turbine is discharged enters into the air-distributing device rectification be arranged on spray-drying tower, most of moisture evaporation in slurry drops enters into flue gas, and the mud granule after mummification and flue gas together leave spray-drying tower and enter gas-solid separating device.
Described gas-solid separating device is deep bed filter, the fabric of a large amount of vesicular structure is arranged in deep bed filter, during the fabric of the flue gas entering deep bed filter by this vesicular structure, the mud granule that flue gas carries is separated to be got off to be delivered to hopper, and the flue that waste gas sends into deodorization in odor removal through induced draft fan, sterilization obtains is discharged in air.
The present invention compared with prior art, has the following advantages:
(1) thermal source of fume afterheat as sludge drying of internal combustion turbine is utilized, realize energy cascade utilization, thermo-efficiency is high, the fuel cost of sludge drying can be saved, it also avoid the emission problem of the atmospheric polluting materials such as the sulfurous gas of burning coal dewatered sludge generation, oxynitride and dust.
(2) through anhydration and incineration process, the minimizing of mud, stabilization effect are remarkable, and due to sludge drying, burning disposal required time short, the present invention, under the condition of less land used, can process a large amount of mud.The polluted underground water effectively avoiding Sludge landfill and Land_use change to cause and environmental problem.
(3) moisture percentage in sewage sludge after mummification significantly reduces, the net calorific value of mud can up to more than 8000kJ/kg, can stable burning in fluidized-bed combustion boiler, under not needing the condition of interpolation auxiliary fuel, bed temperature can stable maintenance more than 850 DEG C, meet the temperature condition of sludge incineration, avoid the generation of hypertoxic pollutent dioxin.
Further, the Steam Actuation steam-electric power unit generating utilizing sludge incineration to produce, achieves the utilization of sludge energy resource, meets the energy-saving and emission-reduction requirement of sludge treatment, improve energy utilization rate further.
Further, the present invention utilizes spraying type drying tower to carry out dewatered sludge, heat smoke directly contacts in drying tower with mud granule, and thermo-efficiency is high, solves the wear problem of the low and heating surface of thermo-efficiency that conventional art adopts the sludge drying mode of indirect heating to exist.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
In figure: 1-condensate pipe, 2-Wingdale tube cell, 3-gas blower, 4-service pump, 5-feed-pipe, 6-material returning device, 7-interchanger, 8-smoke eliminator, 9-induced draft fan, 10-deep bed filter, 11-separator, 12-hopper, 13-supply pipe, 14-fluidized-bed combustion boiler, 15-expects gas hybrid channel, 16-spray-drying tower, 17-vapour pipe, 18-vapor pipe, 19-odor removal, 20-slurry tank, 21-slurry pipe, 22-strainer, 23-sludge pump, 24-spraying gun, 25-air-distributing device, 26-smoke exhaust pipe, 27-gas line, 28-internal combustion turbine, 29-generator, 30-blast main, 31-steam turbine, 33-condenser.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
See Fig. 1, the present invention mainly comprises internal combustion turbine 28, spray-drying tower 16, deep bed filter 10, odor removal 19, fluidized-bed combustion boiler 14, interchanger 7, smoke eliminator 8 etc.
The air intlet of described internal combustion turbine 28 is connected with blast main 30, fuel gas inlet is connected with gas line 27, internal combustion turbine 28 is connected with generator 29, described internal combustion turbine 28 is connected by the inlet mouth of smoke exhaust pipe 26 with spray-drying tower 16, slurry tank 20 is connected with the mud import of spray-drying tower 16 by slurry pipe 21, the outlet of spray-drying tower 16 is connected with the import of deep bed filter 10, the waste gas outlet of deep bed filter 10 is connected with odor removal 19, the inlet flue duct of odor removal 19 is arranged induced draft fan 9, the outlet of odor removal 19 is connected with vapor pipe 18, the dewatered sludge outlet of deep bed filter 10 is connected with hopper 12 by supply pipe 13, hopper 12 is connected with the feed-pipe 5 of fluidized-bed combustion boiler 14, fluidized-bed combustion boiler 14 is connected with steam turbine 31 by vapour pipe 17, steam turbine 31 is connected with generator 29, the outlet of fluidized-bed combustion boiler 14 vapour line is connected with condenser 33, service pump 4 in turn, service pump 4 is connected with interchanger 7 cold water inlet, and interchanger 7 vapour outlet is communicated with the vapour line entrance of fluidized-bed combustion boiler 14, fluidized-bed combustion boiler 14 exhanst gas outlet is connected with separator 11, and separator 11 is connected with interchanger 7, and the exhanst gas outlet of interchanger 7 is connected with smoke eliminator 8.
Described spray-drying tower 16 is arranged air-distributing device 25 and spraying gun 24; High-temperature flue gas from smoke exhaust pipe 26 enters spray-drying tower 16 through air-distributing device 25, the slurries coming from slurry tank 20 are entered after spraying gun 24 is atomized into slurry drops by slurry pipe 21 and enter spray-drying tower 16, slurry pipe 21 are also arranged strainer 22 and sludge pump 23; Slurry drops and high-temperature flue gas direct contact heat transfer in spray-drying tower 16, most moisture in slurry drops enter into flue gas after heating evaporation, the mud granule of mummification and flue gas together leave spray-drying tower 16, enter deep bed filter 10 through material gas hybrid channel 15;
The bottom of described fluidized-bed combustion boiler 14 arranges gas blower 3, Wingdale tube cell 2, feed-pipe 5; Dewatered sludge from deep bed filter 10 enters hopper 12 through supply pipe 13, enters fluidized-bed combustion boiler 14 further across feed-pipe 5; The exhanst gas outlet on fluidized-bed combustion boiler 14 top is connected with separator 11, the particle that separator 11 traps returns fluidized-bed combustion boiler 14 through material returning device 6 and feed-pipe 5, flue gas after gas solid separation enters interchanger 7, flue-gas temperature leaves interchanger 7 after reducing, enter smoke eliminator 8, the flue gas after purification is drained in air through induced draft fan 9;
The high temperature and high pressure steam that fluidized-bed combustion boiler 14 produces enters steam turbine 31 and pushing generator 29 generates electricity through vapour pipe 17, the exhaust steam that steam turbine 31 discharges enters condenser 33 and is transformed into condensed water, condenser 33 is connected with service pump 4 by condensate pipe 1, and condensed water enters interchanger 7 and absorbs heat after service pump 4 pressurizes.
The fume afterheat of discharge of gas turbine is as the thermal source of mud spraying mummification, and sludge drying tail gas discharge after odor removal purification, the mud after mummification enters fluidized-bed combustion boiler and directly burns generation steam, promotes turbine driven set generating.Sweet natural gas high-grade energy generating of the present invention, low-grade flue gas waste heat are used for dewatered sludge, and realize energy step efficiency utilization, energy utilization rate is high; Utilize the sludge incineration after mummification and generate electricity, achieving innoxious, the resource utilization of mud, minimizing process; The burning disposal of mud does not need to add coal-fired grade for auxiliary fuel, and the processing cost of mud is low, the quantity discharged of atmospheric polluting material is low.Therefore, the process that the present invention can realize mud under the prerequisite of safety, environmental protection and economy is disposed and comprehensive utilization, the object reaching energy-saving and emission-reduction and develop a circular economy.
Also disclose a kind of generating integrated method of sludge anhydration burning, comprise the following steps:
(1), high-pressure gas and the high-pressure air through overdraft promote turbine high speed rotating in internal combustion turbine 28 combustion, and pushing generator 29 generates electricity, and the flue gas finishing merit is discharged through the smoke outlet of internal combustion turbine 28, and temperature is between 350 DEG C to 550 DEG C.High-temperature flue gas enters into the air-distributing device 25 be arranged on spray-drying tower 16 through smoke exhaust pipe 26, after air-distributing device 25 carries out rectification, enter into spray-drying tower 16;
Through the water ratio of the sludge cake of mechanical mummification about 80%, sludge cake through the mud slurries stirring and be adjusted to certain water ratio that add water, and can realize being atomized in slurry tank 20.Mud slurries enter into slurry pipe 21, filter through filter 22, are delivered to the spraying gun 24 be arranged on spray-drying tower 16 through sludge pump 23, and mud slurries enter into spray-drying tower 16 after being atomized into the sludge slurry drop with certain grain size distribution.
Heat smoke after rectification and sludge slurry drop enter into direct contact heat transfer in spray-drying tower 16, most of moisture evaporation in slurry drops enters into flue gas, after flue gas heat release, temperature is reduced to less than 100 DEG C, mud granule after mummification and flue gas together leave spray-drying tower 16, enter into deep bed filter 10 through material gas hybrid channel 15.Arrange the fabric of a large amount of vesicular structure in deep bed filter 10, when flue gas passes through the fabric of this vesicular structure, the mud granule that flue gas carries is separated to get off, and delivers to hopper 12 through supply pipe 13.Flue gas after dedusting enters into odor removal 19 through induced draft fan 9, this odor removal preferentially adopts high energy UV light beam cracking deodorizing principle, make the molecular linkage cracking of bacterium in foul gas, destroy the nucleic acid (DNA) of bacterium, carry out oxidizing reaction by ozone again, thoroughly reach the object of deodorization and kill bacteria.Flue gas after purification is discharged in air through vapor pipe 18;
(2) dewatered sludge, in hopper 12 enters into fluidized-bed combustion boiler 14 through feed-pipe 5, the combustion air provided with gas blower 3 burns, make fire box temperature be stabilized in about 850 DEG C, effectively kill a large amount of germs in mud, make the organic composition combustion decomposition in mud.The limestone powder of desulfuration in furnace enters into burner hearth through Wingdale tube cell 2, reacts with sludge incineration the SO generated
2combine generation vitriol, realizes SO
2effective elimination.Flue gas carries particle and leaves burner hearth and enter into separator 11, complete gas solid separation, the separated device 11 of major part particle traps and returns burner hearth through material returning device 6, high-temperature flue gas leaves separator 11 and enters into interchanger 7 and to the heating surface heat release be arranged in wherein, and the flue gas that temperature is reduced to less than 100 DEG C leaves interchanger 7 and enters into smoke eliminator 8.The preferred gac waste gas purification apparatus of this smoke eliminator, the heavy metal, dioxin pollutent in absorption flue gas, and in conjunction with electric precipitator or sack cleaner.Purify up to standard after flue gas be discharged in air through induced draft fan 9;
As the further prioritization scheme of the inventive method, the high temperature and high pressure steam that fluidized-bed combustion boiler 14 vapour line produces enters steam turbine 31 pushing generator 29 through vapour pipe 17 and generates electricity, the exhaust steam that steam turbine 31 discharges enters condenser 33, water is condensed into after heating, enter into service pump 4 by condensate pipe 1, after service pump 4 pressurizes, enter into interchanger 7 absorb heat, and become high temperature and high pressure steam through the further heated evolves of fluidized-bed combustion boiler 14, enter into vapour line again, complete circulation.
Technique effect of the present invention has:
1, the fume afterheat discharged after utilizing gas turbine power generation is to the mummification of wet mud drop direct heating in spray-drying tower, and mummification intensity is large, and the output of sludge drying is large.
2, by odor removal, deodorizing purifying treatment is carried out to the tail gas produced in dewatered sludge process, little to the disadvantageous effect of atmospheric environment.
3, utilize fluidized-bed combustion boiler to carry out burning disposal to dewatered sludge, flameholding, effectively realize the minimizing of sludge treatment, innoxious, stabilization, and generated electricity by sludge incineration, realize effective utilization of sludge hot resource, achieve the resource utilization of sludge treatment.
4, the mud after mummification adopts the treatment capacity of burning mode process large, is applicable to the process that extensive water treatment plant produces a large amount of mud.Solve groundwater pollution and problem of environmental pollution that sludge landfill characteristics and landfill disposal cause.
Claims (8)
1. a sludge anhydration burning generating integrated system, it is characterized in that: comprise internal combustion turbine (28), internal combustion turbine (28) is connected with generator (29), internal combustion turbine (28) smoke outlet is connected with mud drying device inlet mouth, the mud import of mud drying device is communicated with mud feeding mechanism, mud drying device outlet is connected with gas-solid separating device, the dewatered sludge outlet of gas-solid separating device is connected with hopper (12), hopper (12) is connected with the opening for feed of fluidized-bed combustion boiler (14), fluidized-bed combustion boiler (14) is provided with the combustion air inlet and Wingdale tube cell (2) that are communicated with burner hearth, fluidized-bed combustion boiler (14) exhanst gas outlet is connected with separator (11), separator (11) pneumatic outlet is connected with smoke eliminator (8), smoke eliminator (8) outlet is connected with induced draft fan (9), separator (11) solid outlet is connected through the opening for feed of material returning device (6) with fluidized-bed combustion boiler (14),
The vapour line outlet of described fluidized-bed combustion boiler (14) is connected with steam turbine (31), steam turbine (31) is connected with generator (29), described separator (11) pneumatic outlet connects interchanger (7) and is connected with smoke eliminator (8) afterwards, the exhaust steam outlet of steam turbine (31) is connected with condenser (33), condenser (33) is connected with interchanger (7) cold water inlet through service pump (4), and interchanger (7) vapour outlet is communicated with the vapour line entrance of fluidized-bed combustion boiler (14);
Described mud drying device is spray-drying tower (16), spray-drying tower (16) inlet mouth is provided with air-distributing device (25), mud import is provided with spraying gun (24); Described mud feeding mechanism comprises slurry tank (20), slurry tank (20) connects strainer (22) successively and is communicated with spraying gun (24) afterwards with sludge pump (23), and internal combustion turbine (28) smoke outlet is connected with air-distributing device (25).
2. sludge anhydration burning generating integrated system according to claim 1, is characterized in that: described smoke eliminator (8) adopts gac waste gas purification apparatus in conjunction with electric precipitator or sack cleaner.
3. sludge anhydration burning generating integrated system according to claim 1, it is characterized in that: described gas-solid separating device is deep bed filter (10), deep bed filter (10) waste gas outlet is connected with odor removal (19) through induced draft fan (9), and the outlet of deep bed filter (10) dewatered sludge is connected with hopper (12).
4. sludge anhydration burning generating integrated system according to claim 3, is characterized in that: described odor removal (19) is UV photodissociation treating plant.
5., based on the generating integrated method of sludge anhydration burning of claim 1 integral system, it is characterized in that comprising the following steps:
(1), high-pressure gas and the high-pressure air through overdraft promote turbine high speed rotating in internal combustion turbine (28) combustion, and pushing generator (29) generating, the flue gas finishing merit enters into direct contact heat transfer in mud drying device with the wet mud from mud feeding mechanism, most of moisture evaporation in mud enters into flue gas, mud after mummification and flue gas together leave mud drying device and enter gas-solid separating device, mud after mummification is separated in gas-solid separating device with flue gas, flue gas is discharged, and dewatered sludge is sent in hopper (12);
(2) dewatered sludge, in hopper (12) enters into fluidized-bed combustion boiler (14), burn with combustion air, the limestone powder of desulfuration in furnace enters into burner hearth through Wingdale tube cell (2), reacts with sludge incineration the SO generated
2combine generation vitriol, flue gas carries particle and leaves burner hearth and enter into separator (11) and complete gas solid separation, the major part separated device of particle (11) traps and returns fluidized-bed combustion boiler (14) burner hearth through material returning device (6), high-temperature flue gas leave separator (11) enter into smoke eliminator (8) purify up to standard after, be discharged in air through induced draft fan (9).
6. the generating integrated method of sludge anhydration burning according to claim 5, it is characterized in that: in described step (2), dewatered sludge burns at fluidized-bed combustion boiler (14), the high temperature and high pressure steam that fluidized-bed combustion boiler (14) vapour line produces enters steam turbine (31), and pushing generator (29) generating, the exhaust steam that steam turbine (31) discharges enters condenser (33) and is transformed into condensed water, condensed water enters in interchanger (7) after service pump (4) pressurization, superheated vapour is become to enter steam turbine (31) by the further heated evolves of fluidized-bed combustion boiler (14), complete circulation, the high-temperature flue gas leaving separator (11) enters into interchanger (7) and discharges after entering into smoke eliminator (8) purification after the heating surface heat release be arranged in wherein.
7. the generating integrated method of sludge anhydration burning according to claim 5, it is characterized in that: in described step (1), mud drying device is spray-drying tower (16), mud feeding mechanism comprises slurry tank (20), sludge cake through mechanical mummification stirs the mud slurries being adjusted to and can realizing being atomized in slurry tank (20) through adding water, mud slurries after filtration device (22) are delivered to by sludge pump (23) spraying gun (24) be arranged on spray-drying tower (16) after filtering, mud slurries enter into spray-drying tower (16) after being atomized into the sludge slurry drop with certain grain size distribution, the flue gas that internal combustion turbine (28) is discharged enters into spray-drying tower (16) and sludge slurry drop direct contact heat transfer after entering into air-distributing device (25) rectification be arranged on spray-drying tower (16), most of moisture evaporation in slurry drops enters into flue gas, and the mud granule after mummification and flue gas together leave spray-drying tower (16) and enter gas-solid separating device.
8. the generating integrated method of sludge anhydration burning according to claim 5, it is characterized in that: described gas-solid separating device is deep bed filter (10), the fabric of a large amount of vesicular structure is arranged in deep bed filter (10), during the fabric of the flue gas entering deep bed filter (10) by this vesicular structure, the mud granule that flue gas carries is separated gets off to be delivered to hopper (12), and the flue that waste gas sends into deodorization in odor removal (19) through induced draft fan (9), sterilization obtains is discharged in air.
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| CN110526543A (en) * | 2019-09-20 | 2019-12-03 | 南京中电环保固废资源有限公司 | A kind of system and method coupling coal-fired incineration disposal suitable for sludge |
| CN110790473A (en) * | 2019-10-29 | 2020-02-14 | 德蓝水技术股份有限公司 | Drying method for textile sludge and recycling method for textile sludge in thermal power plant |
| CN112082163A (en) * | 2020-09-09 | 2020-12-15 | 杭州国泰环保科技股份有限公司 | Sludge incineration method and sludge incineration system thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817629A (en) * | 2010-03-30 | 2010-09-01 | 浙江大学 | Integrated method and device for sludge drying incineration and power generation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101817629A (en) * | 2010-03-30 | 2010-09-01 | 浙江大学 | Integrated method and device for sludge drying incineration and power generation |
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