CN106111667A - Biomass are prepared RDF 4 smokeless and are burned steam-electric power technique - Google Patents

Biomass are prepared RDF 4 smokeless and are burned steam-electric power technique Download PDF

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Publication number
CN106111667A
CN106111667A CN201610488760.0A CN201610488760A CN106111667A CN 106111667 A CN106111667 A CN 106111667A CN 201610488760 A CN201610488760 A CN 201610488760A CN 106111667 A CN106111667 A CN 106111667A
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China
Prior art keywords
rdf
mechanical
gas
drying
steam
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Pending
Application number
CN201610488760.0A
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Chinese (zh)
Inventor
张光杰
林春堆
姚迪
郭盛果
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FUJIAN ZHENGREN ENVIRONMENTAL PROTECTION Co Ltd
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FUJIAN ZHENGREN ENVIRONMENTAL PROTECTION Co Ltd
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Priority to CN201610488760.0A priority Critical patent/CN106111667A/en
Publication of CN106111667A publication Critical patent/CN106111667A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09BDISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00Destroying solid waste or transforming solid waste into something useful or harmless
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09BDISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00Destroying solid waste or transforming solid waste into something useful or harmless
    • B09B3/40Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09BDISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B5/00Operations not covered by a single other subclass or by a single other group in this subclass
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D15/00Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01D15/10Adaptations for driving, or combinations with, electric generators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K11/00Plants characterised by the engines being structurally combined with boilers or condensers
    • F01K11/02Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09BDISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B2101/00Type of solid waste
    • B09B2101/02Gases or liquids enclosed in discarded articles, e.g. aerosol cans or cooling systems of refrigerators

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The invention discloses biomass and prepare RDF 4 smokeless burning steam-electric power technique, it is that biomass through a series of process and are rolled and make powder-shaped rubbish derivatived fuel (RDF 4), burning RDF 4 bulk fuel also collects the produced high-temperature flue gas of burning, utilize high-temperature flue gas to pass through heat exchange and absorb generation vapours, vapours is passed into steam turbine generator and carries out steam-electric power.The waste heat gas produced during heat exchange absorbs is respectively used to drying garbage and RDF 4 burns in oxygen supply.Present invention achieves the comprehensive utilization of waste resource, play maximum economic benefit;The waste heat gas produced during residual heat boiler for exchanging heat is used for dried material rubbish, it is achieved recycling of heat energy;Flue dust in waste heat gas is played adsorption by material rubbish, and a part is dried produced gas and is passed in combustor, and burning for RDF 4 removes foul smell while oxygen supply.

Description

Biomass are prepared RDF-4 smokeless and are burned steam-electric power technique
Technical field
The present invention relates to the processing technology field of biomass, particularly relate to a kind of biomass and prepare RDF-4 smokeless Burn steam-electric power technique.
Background technology
Along with the fast development of China's economy, the domestic waste yield of China increases day by day, the process of rubbish and place Put and have become as the problem that China big and medium-sized cities must solve;China's municipal refuse annual production is about to 1. 5 hundred million tons at present, and The most also increasing;How to realize that domestic waste is innoxious, " three change " of minimizing and resource processes and has become research Focus.House refuse is sorted, selects combustible constituent and roll and make powder-shaped rubbish derivatived fuel (RDF-4), burn and dissipate Shape garbage derivatived fuel (RDF-4) is also collected by burning produced high-temperature flue gas, then high-temperature flue gas is passed into waste heat boiler Producing vapours, the technical scheme those skilled in the art then utilizing vapours to carry out steam-electric power have been carried out research, And achieve praiseworthy technological achievement.
Above house refuse is made bulk fuel powder-shaped rubbish derivatived fuel (RDF-4) and burns generation high-temperature flue gas through changing Produce vapours after heat and carry out the garbage treating process of steam-electric power after actual motion after a while, find still to deposit In some problems having been resolved possibly through technological improvement, such as: distributing rationally of crude waste resource cannot be accomplished; Burn powder-shaped rubbish derivatived fuel (RDF-4) if the waste heat gas that the high-temperature flue gas produced produces after carrying out heat exchange absorption is directly arranged Putting and can cause secondary pollution, if individual processing needs higher processing cost, heat energy cannot be fully used.
Summary of the invention
Waste resources is distributed rationally, heat energy makes full use of, extremely low two English discharges to it is an object of the invention to provide one Biomass prepare RDF-4 smokeless burn steam-electric power technique.
The above-mentioned purpose of the present invention is realized by following technical proposal:
Biomass are prepared RDF-4 smokeless and are burned steam-electric power technique, including following step:
1) biomass are carried out broken bag process;
2) biomass after broken bag are carried out artificial screening;Select recyclable plastics, regeneration and granulation after cleaning;Select stone, brick Blocks etc. crush, as environment-friendly building materials raw material after crushing;Select glass, clean laggard oozy glass wire drawing;
3) by step 2) residual refuse after artificial screening crosses tramp iron separator except ferrum;
4) will cross, except the rubbish after ferrum, No. 1 mechanical picker that aperture is 6cm;
5) siftage of in step 4) No. 1 mechanical picker is crossed No. 2 mechanical pickers that aperture is 2cm;
6) siftage of in step 5) No. 2 mechanical pickers is done compost treatment, form fertile soil;
7) oversize of in step 4) No. 1 mechanical picker is carried out coarse crushing, make the particle diameter of the material particles after crushing (except not having on a small quantity Outside being crushed to) at below 6cm;
8) material after step 7) coarse crushing is crossed No. 3 mechanical pickers that aperture is 4cm;
9) oversize of in step 8) No. 3 mechanical pickers is carried out fine crushing, make the particle diameter of the material particles after crushing (except not having on a small quantity Outside being crushed to) at below 4cm;
10) by No. 2 mechanical pickers in step 8) No. 3 siftage of mechanical picker, step 9) fine crushing gained material and step 5) Hydraulic pressure dehydration is carried out after oversize mixing;
11) material completing hydraulic pressure dehydration is sent into biological drying room and carry out biological drying sterilization;
12) material after completing biological drying sterilization is sent in mechanical drying cylinder and is dried, and makes the material after drying contain Water rate is less than 40%;
13) roll squeezer sent into by the material after drying, and makes powder-shaped rubbish derivatived fuel (RDF-4);
14) powder-shaped rubbish derivatived fuel (RDF-4) feeding combustor is burned and collects the produced high-temperature flue gas of burning;
15) high-temperature flue gas is passed into waste heat boiler, after residual heat boiler for exchanging heat, produces vapours and discharge waste hot air body;
16) vapours is passed into steam turbine generator and carries out steam-electric power;
17) water produced by steam turbine generator during steam-electric power is passed into waste heat boiler as the water generating vapours Source;
18) it is passed into step 15) is discharged waste heat gas in the mechanical drying cylinder of step 12) as drying heat source gas;
19) moisture that mechanical drying cylinder produces in drying course is condensed;
20) after being condensed by moisture, gained gas is passed in the combustor of step 14) in right amount, for the burning oxygen supply of its inside, with Time also burn deodorization;
21) if moisture condensation after gained gas for step 20) after still have residue, enter this step: led to by remaining gas Enter to the biological drying of step 11) indoor, increase heat energy for biological dry disinfection.
The invention has the beneficial effects as follows:
1, biomass are carried out classification and reclaim the raw material being respectively prepared plastic, glass and construction material, remain organic Rubbish rolls makes powder-shaped rubbish derivatived fuel (RDF-4), it is achieved the comprehensive utilization of waste resource, plays maximum economic benefit;
2, burn powder-shaped rubbish derivatived fuel (RDF-4) and collect by burning produced high-temperature flue gas, utilizing heat-exchanger rig (remaining Heat boiler) absorb the heat energy in high-temperature flue gas and produce vapours, utilize vapours to carry out steam-electric power, by residual heat boiler for exchanging heat During the waste heat gas that produces for dried material rubbish, it is achieved recycling of heat energy, increase economic efficiency;
3, utilizing waste heat gas drying material rubbish, the flue dust in waste heat gas is played adsorption by material rubbish;A part It is dried produced gas to be passed in biological drying room, increases the temperature that biological drying is indoor, improve biological drying sterilization Efficiency;A part is dried produced gas and is passed in combustor, for powder-shaped rubbish derivatived fuel (RDF-4) burning oxygen supply Remove foul smell simultaneously;Realize extremely low two English discharges, be substantially reduced the secondary pollution caused in garbage processing procedure.
Accompanying drawing explanation
Fig. 1 is present invention process flow chart.
Detailed description of the invention
Carry out technical scheme detailed further below by embodiment, but protection domain is not limited to this.
Embodiment: biomass are prepared RDF-4 smokeless and burned steam-electric power technique, as it is shown in figure 1, by collection Biomass are through a series of process and roll and make powder-shaped rubbish derivatived fuel (RDF-4), and burn powder-shaped rubbish derivatived fuel (RDF-4) and collect the produced high-temperature flue gas of burning, utilize high-temperature flue gas to pass through heat exchange to absorb and generate vapours, by vapours It is passed into steam turbine generator and carries out steam-electric power.The waste heat gas produced during heat exchange absorbs is respectively used to drying garbage Burn in oxygen supply with powder-shaped rubbish derivatived fuel (RDF-4), thus reach thermal source comprehensive utilization, extremely low two English discharges and increase The purpose of economic benefit.Specifically include following step:
1) biomass (house refuse, garden waste, human and animal excreta and spoil etc. are referred to as biomass) collected are entered Row broken bag processes, and abolishes refuse bag therein, makes rubbish shed and be convenient for next step process work;
2) biomass after broken bag are carried out artificial screening;Selecting recyclable plastics, regeneration and granulation after cleaning, as plastic shaping Raw material;Select stone, fragment of brick etc. to crush, broken rear as the raw material making environment-friendly building materials;Select glass, clean laggard Oozy glass wire drawing becomes the raw material of glass;
3) by step 2) residual refuse after artificial screening crosses tramp iron separator except ferrum;
4) will cross, except the rubbish after ferrum, No. 1 mechanical picker that aperture is 6cm;
5) siftage of in step 4) No. 1 mechanical picker is crossed No. 2 mechanical pickers that aperture is 2cm;
6) siftage of in step 5) No. 2 mechanical pickers is done compost treatment, form fertile soil;
7) oversize of in step 4) No. 1 mechanical picker is carried out coarse crushing, make the particle diameter of the material particles after crushing (except not having on a small quantity Outside being crushed to) at below 6cm;
8) material after step 7) coarse crushing is crossed No. 3 mechanical pickers that aperture is 4cm;
9) oversize of in step 8) No. 3 mechanical pickers is carried out fine crushing, make the particle diameter of the material particles after crushing (except not having on a small quantity Outside being crushed to) at below 4cm;
10) by No. 2 mechanical pickers in step 8) No. 3 siftage of mechanical picker, step 9) fine crushing gained material and step 5) Hydraulic pressure dehydration is carried out after oversize mixing;
11) material completing hydraulic pressure dehydration is sent into biological drying room and (refer to another entitled " a kind of biological drying sterilization chamber " Patent application) carry out biological drying sterilization;
12) material after completing biological drying sterilization is sent in mechanical drying cylinder and is dried, and makes the material after drying contain Water rate is less than 40%;
Wherein, in step 10), it is every 40 ~ 60cm that hydraulic pressure is dehydrated its pressure size2Bear 400 ~ 600T pressure, make material aqueous Rate (percentage by weight that moisture is overall with material) is less than 50%;In step 11), the material water ratio after biological drying sterilization is little In 45%;This has concrete introduction in the patent application of another entitled " a kind of bioanalysis drying garbage sterilization process ";
13) roll squeezer sent into by the material after drying, and makes powder-shaped rubbish derivatived fuel (RDF-4);
14) powder-shaped rubbish derivatived fuel (RDF-4) feeding combustor is burned and collects the produced high-temperature flue gas of burning;
15) high-temperature flue gas is passed into waste heat boiler, after residual heat boiler for exchanging heat, produces vapours and discharge waste hot air body;
16) vapours is passed into steam turbine generator and carries out steam-electric power;
17) water produced by steam turbine generator during steam-electric power is passed into waste heat boiler as the water generating vapours Source;
18) it is passed into step 15) is discharged waste heat gas in the mechanical drying cylinder of step 12) as drying heat source gas;
19) carry out the moisture that mechanical drying cylinder produces in drying course condensing (condensed temperature is generally less than 50 °, The moisture content making gas is down to 20% ~ 30%), to make water vapor condensation be aqueous water thus reduces gas gross, removes steam Steam can also be avoided during next step oxygen supply to produce cooling effect;
20) after being condensed by moisture, gained gas is passed in the combustor of step 14) in right amount, for the burning oxygen supply of its inside, with Time also burn deodorization;
21) if moisture condensation after gained gas for step 20) after still have residue, enter this step: led to by remaining gas Enter to the biological drying of step 11) indoor, increase heat energy for biological dry disinfection, accelerate fermentation reaction, reduce fermentation dried Time.
During June 2015 February in 2015, Fujian Zheng Ren environmental protection company limited utilizes the technical scheme in the present embodiment Contrast experiment has been carried out with former technical scheme, found that: the biomass of isodose, utilize the technical scheme ratio in the present embodiment Utilizing former technical scheme generated energy to improve more than 30%, dioxin emission is substantially reduced, and overall economic benefit improves more than 35%.
The foregoing is only the preferred embodiments of the present invention, be not limited to invention, although with reference to aforementioned enforcement The present invention has been described in detail by example, and for a person skilled in the art, it still can be to foregoing embodiments Described technical scheme is modified, or wherein portion of techniques feature is carried out equivalent.All invention spirit and Within principle, any modification, equivalent substitution and improvement etc. made, within should be included in the protection domain of invention.

Claims (1)

1. biomass are prepared RDF-4 smokeless and are burned steam-electric power technique, it is characterised in that include following step:
1) biomass are carried out broken bag process;
2) biomass after broken bag are carried out artificial screening;Select recyclable plastics, regeneration and granulation after cleaning;Select stone, brick Blocks etc. crush, as environment-friendly building materials raw material after crushing;Select glass, clean laggard oozy glass wire drawing;
3) by step 2) residual refuse after artificial screening crosses tramp iron separator except ferrum;
4) will cross, except the rubbish after ferrum, No. 1 mechanical picker that aperture is 6cm;
5) siftage of in step 4) No. 1 mechanical picker is crossed No. 2 mechanical pickers that aperture is 2cm;
6) siftage of in step 5) No. 2 mechanical pickers is done compost treatment, form fertile soil;
7) oversize of in step 4) No. 1 mechanical picker is carried out coarse crushing, make the particle diameter of the material particles after crushing (except not having on a small quantity Outside being crushed to) at below 6cm;
8) material after step 7) coarse crushing is crossed No. 3 mechanical pickers that aperture is 4cm;
9) oversize of in step 8) No. 3 mechanical pickers is carried out fine crushing, make the particle diameter of the material particles after crushing (except not having on a small quantity Outside being crushed to) at below 4cm;
10) by No. 2 mechanical pickers in step 8) No. 3 siftage of mechanical picker, step 9) fine crushing gained material and step 5) Hydraulic pressure dehydration is carried out after oversize mixing;
11) material completing hydraulic pressure dehydration is sent into biological drying room and carry out biological drying sterilization;
12) material after completing biological drying sterilization is sent in mechanical drying cylinder and is dried, and makes the material after drying contain Water rate is less than 40%;
13) roll squeezer sent into by the material after drying, and makes powder-shaped rubbish derivatived fuel (RDF-4);
14) powder-shaped rubbish derivatived fuel (RDF-4) feeding combustor is burned and collects the produced high-temperature flue gas of burning;
15) high-temperature flue gas is passed into waste heat boiler, after residual heat boiler for exchanging heat, produces vapours and discharge waste hot air body;
16) vapours is passed into steam turbine generator and carries out steam-electric power;
17) water produced by steam turbine generator during steam-electric power is passed into waste heat boiler as the water generating vapours Source;
18) it is passed into step 15) is discharged waste heat gas in the mechanical drying cylinder of step 12) as drying heat source gas;
19) moisture that mechanical drying cylinder produces in drying course is condensed;
20) after being condensed by moisture, gained gas is passed in the combustor of step 14), in right amount for the burning oxygen supply of its inside;
21) if moisture condensation after gained gas for step 20) after still have residue, enter this step: led to by remaining gas Enter to the biological drying of step 11) indoor, increase heat energy for biological dry disinfection.
CN201610488760.0A 2016-06-29 2016-06-29 Biomass are prepared RDF 4 smokeless and are burned steam-electric power technique Pending CN106111667A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106734061A (en) * 2016-11-28 2017-05-31 中国环境科学研究院 Rubbish combined treatment process and system
CN110805914A (en) * 2019-11-11 2020-02-18 江苏华旭环保股份有限公司 Rotary kiln drying incineration process for PTA activated sludge with additional pre-dryer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010202689A (en) * 2009-02-27 2010-09-16 Bio Coke Lab Co Ltd Gasification method, power generation method, gasification device, power generation device, and organic material
CN201836894U (en) * 2010-10-22 2011-05-18 河南省澳斯迪环保机械有限责任公司 Garbage incinerator
CN103934251A (en) * 2014-01-21 2014-07-23 上海程胜环保科技有限公司 Human household garbage disposition and recycling method
CN105443171A (en) * 2014-08-20 2016-03-30 福建正仁环保有限公司 Incineration power generation process adopting refuse derived fuel (RDF) prepared from refuse

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010202689A (en) * 2009-02-27 2010-09-16 Bio Coke Lab Co Ltd Gasification method, power generation method, gasification device, power generation device, and organic material
CN201836894U (en) * 2010-10-22 2011-05-18 河南省澳斯迪环保机械有限责任公司 Garbage incinerator
CN103934251A (en) * 2014-01-21 2014-07-23 上海程胜环保科技有限公司 Human household garbage disposition and recycling method
CN105443171A (en) * 2014-08-20 2016-03-30 福建正仁环保有限公司 Incineration power generation process adopting refuse derived fuel (RDF) prepared from refuse

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106734061A (en) * 2016-11-28 2017-05-31 中国环境科学研究院 Rubbish combined treatment process and system
CN110805914A (en) * 2019-11-11 2020-02-18 江苏华旭环保股份有限公司 Rotary kiln drying incineration process for PTA activated sludge with additional pre-dryer

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