CN209068514U - Refuse gasification dual firing chamber flue gas Boiler Steam screw expansion electricity generation system - Google Patents

Refuse gasification dual firing chamber flue gas Boiler Steam screw expansion electricity generation system Download PDF

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Publication number
CN209068514U
CN209068514U CN201821565374.8U CN201821565374U CN209068514U CN 209068514 U CN209068514 U CN 209068514U CN 201821565374 U CN201821565374 U CN 201821565374U CN 209068514 U CN209068514 U CN 209068514U
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China
Prior art keywords
flue gas
air
gas boiler
air blower
gasification
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Expired - Fee Related
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CN201821565374.8U
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Chinese (zh)
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钱永祥
钱晓烽
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WUXI TENENG POWER MACHINERY Co Ltd
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WUXI TENENG POWER MACHINERY Co Ltd
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  • Processing Of Solid Wastes (AREA)
  • Treating Waste Gases (AREA)

Abstract

The utility model discloses refuse gasification dual firing chamber flue gas Boiler Steam screw expansion electricity generation systems, are related to technical field of waste treatment.The utility model includes belt conveyor, screw conveyor, gasification furnace, air blower, second-time burning air blower, secondary combustion chamber, flue gas boiler, main steam header, screw expansion generating set, extracting tower, activated charcoal adding apparatus, bag filter, air-introduced machine and chimney;Granulated garbage fuel is transported in the feed hopper of screw conveyor by belt conveyor.The utility model realizes that gasification decomposition generates the fuel gas of certain temperature by the gasification furnace and air blower of design, fuel gas is adequately burnt while improving the temperature of fuel gas by second-time burning air blower and secondary combustion chamber, improve efficiency of combustion, the pollutant in multistage removal flue gas is carried out by extracting tower, activated charcoal adding apparatus and bag filter, solves the problems, such as that existing combustion product gases temperature is low and fume treatment is incomplete.

Description

Refuse gasification dual firing chamber flue gas Boiler Steam screw expansion electricity generation system
Technical field
The utility model belongs to technical field of waste treatment, more particularly to refuse gasification dual firing chamber flue gas Boiler Steam spiral shell Bar expansion power generation system.
Background technique
The gasification of house refuse is a kind of novel technology of garbage disposal, compared with burning, landfill and composting treatment method, Gasification Technique is increasingly valued by people because having many advantages, such as clean and environmental protection, resource recycling.People make every effort to House refuse is handled with gasification technology, to reach more preferably innoxious, minimizing, recycling effect.In refuse gasification reactor In, organic matter heats under anaerobic or anoxia condition, and the chemical combination key of organic compound is broken, and is converted to by macromolecule small The combustion gas of molecular weight, oil or grease liquid material and coke etc..
Existing rubbish vaporescence mostly uses the closed environment of no gas supply, the temperature of decomposition of gasifying 500 DEG C- 700 DEG C, the initial temperature of fuel gas is lower in entering secondary combustion chamber, and oxygen content is lower, second-time burning process reaction Not exclusively, flue-gas temperature is lower after burning, and efficiency of combustion is low, and the flue gas of generation is carried out solid gas point mostly by existing incineration firing It is then discharged from after by washing, a variety of hazardous materials effectively can not be subjected to classification processing, caused in the gas of release still So there are a large amount of small pollution particles.
Summary of the invention
The purpose of this utility model is to provide refuse gasification dual firing chamber flue gas Boiler Steam screw expansion electricity generation systems, lead to The gasification furnace and air blower for crossing design realize that the fuel gas for generating certain temperature, second-time burning air blower and secondary are decomposed in gasification Fuel gas is adequately burnt while improving the temperature of fuel gas by combustion chamber, is improved efficiency of combustion, is passed through extracting tower, activity Charcoal throwing device and bag filter carry out the pollutant in multistage removal flue gas, solve that existing combustion product gases temperature is low and cigarette The incomplete problem of gas disposal.
In order to solve the above technical problems, the utility model is achieved through the following technical solutions:
The utility model is refuse gasification dual firing chamber flue gas Boiler Steam screw expansion electricity generation system, including Belt Conveying Machine, screw conveyor, gasification furnace, air blower, second-time burning air blower, secondary combustion chamber, flue gas boiler, main steam header, screw rod Expansion power generation unit, extracting tower, activated charcoal adding apparatus, bag filter, air-introduced machine and chimney;The belt conveyor is by rubbish Rubbish granular fuel is transported in the feed hopper of screw conveyor;The screw conveyor is quantitative to be transported to gas for granulated garbage fuel Change the feed inlet of furnace;The fuel gas outlet of the gasification furnace passes through gas pipeline and secondary combustion chamber fuel gas entrance phase Even;The blower outlet is connected by the first air inducing pipeline with gasification furnace air inlet;The second-time burning air blower passes through Second air inducing pipeline is connected with secondary combustion chamber air inlet;Secondary combustion chamber hot fume outlet and flue gas boiler hot flue gas into Mouth is connected;The flue gas boiler high temperature higher pressure steam outlet passes through main steam header and screw expansion generating set steam inlet phase Even;The flue gas boiler afterheat flue gas is connected by the first smoke tube with extracting tower smoke air inlet;The depickling tower flue gas Gas outlet is connected by the second smoke tube with bag filter air inlet;The bag filter gas outlet passes through third flue gas Conduit is connected with fan inlet;The fan out draft passes through the air inlet phase of the 4th smoke tube and chimney bottom Even;The air that granulated garbage fuel and air blower blast in the gasification furnace generates flammable in closed space high temperature burning Gas;The imflammable gas includes carbon monoxide, hydrogen and methane;It is roused in the secondary combustion chamber with second-time burning air blower The air entered is mixed, and second-time burning further increases that flue-gas temperature is higher, and flue-gas temperature reaches under original gasification temperature To 1100 DEG C or more;The flue gas boiler, main steam header and screw expansion generating set are connected, and flue gas boiler is by 1100 DEG C Flue gas heat exchange after generate high temperature and pressure steam, conveyed by main steam header, screw expansion generating set is in high temperature height It generates electricity under the action of pressure steam;The extracting tower is by way of the wet type deacidification of solid waste flue gas to the flue gas after energy exchange The filtering of carry out solid waste and dissolution harmful smoke;The bag filter carries out again the minute dusts not filtered in flue gas Secondary filtering, flue gas after filtering can reach discharge standard;The air-introduced machine increases the gas that can be discharged after filtering Pass through smoke stack emission to eminence after pressure;The activated charcoal adding apparatus is arranged on the second smoke tube, to taking out of in extracting tower The nuisances such as acid mist carry out absorption and reduce pollutant concentration, reduce acid mist etc. in bag filter filter process to equipment corruption Erosion.
Further, electricity-generating method the following steps are included:
SS001 gasification is decomposed, and the granulated garbage fuel and air blower for the addition being transported in gasification furnace are always supplied to gasification furnace Under conditions of gas, gasification temperature reaches 710 DEG C -840 DEG C, and granulated garbage fuel carries out pyrolytic gasification reaction, and big point in rubbish Sub- steady state mass resolves into the inflammable fuel gas of small molecule;
The fuel gas generated in SS001 is input to by gas pipeline defeated in secondary combustion chamber by SS002 second-time burning The fuel gas entered and the air that second-time burning air blower blasts mix full combustion, flue-gas temperature reach 1100 DEG C with On;
The high-temperature flue gas generated in SS002 is passed through and carries out returning for thermal energy in flue gas boiler by the recycling of SS003 flue gas heat It receives, heats the water vapour that the water in flue gas boiler generates high temperature and pressure;
The water vapour of the high temperature and pressure generated in SS003 is conveyed to screw expansion hair by main steam header by SS004 power generation Motor group generates electricity, and screw expansion generating set is grid-connected with power grid;
The low energy flue gas after the recovery of thermal energy in SS003 is transported in extracting tower and carries out at depickling by SS005 deacidifying flue gas Reason, further decreases flue-gas temperature;
Flue gas in SS005 by cooling depickling is passed through bag-type dust by the second smoke tube by SS006 flue gas ash removal Bag-type dust is carried out in device, the activated charcoal adding apparatus on the second smoke tube is interrupted continuous addition into the second smoke tube and lives Property charcoal the harmful substance in flue gas is adsorbed, reduce gas pollutant content, reach discharge standard;
SS007 flue gas emission is pressurized the gas after dust removal and filtration in SS006 by air-introduced machine, is transported to chimney Middle carry out high altitude discharge.
Further, active carbon includes powdered activated carbon or block absorbent charcoal in the activated charcoal adding apparatus.
The utility model has the following beneficial effects:
1, the utility model improves the temperature that gasification is decomposed by the gasification furnace and air blower of design and improves combustible gas simultaneously The initial temperature of body, second-time burning air blower and secondary combustion chamber adequately burn fuel gas, and flue-gas temperature reaches 1100 DEG C or more improve efficiency of combustion, improve the economic benefit of garbage power.
2, the utility model is carried out in classification removal flue gas not by extracting tower, activated charcoal adding apparatus and bag filter Congener pollutant reduces microminiature pollution by adding the small harmful suspension of activated carbon adsorption and pernicious gas molecule The content of object achievees the effect that environmental protection.
Certainly, any product for implementing the utility model does not necessarily require achieving all the advantages described above at the same time.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, make required for being described below to embodiment Attached drawing is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention, For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings Other attached drawings.
Fig. 1 is that the process of the utility model refuse gasification dual firing chamber flue gas Boiler Steam screw expansion electricity generation system is illustrated Figure;
In attached drawing, parts list represented by the reference numerals are as follows:
1- belt conveyor, 2- screw conveyor, 3- gasification furnace, 4- air blower, 5- second-time burning air blower, 6- bis- times combustions Burn room, 7- flue gas boiler, 8- main steam header, 9- screw expansion generating set, 10- extracting tower, 11- activated charcoal adding apparatus, 12- Bag filter, 13- air-introduced machine, 14- chimney.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts All other embodiment obtained, fall within the protection scope of the utility model.
Refering to Figure 1, the utility model is refuse gasification dual firing chamber flue gas Boiler Steam screw expansion electricity generation system, Including belt conveyor 1, screw conveyor 2, gasification furnace 3, air blower 4, second-time burning air blower 5, secondary combustion chamber 6, flue gas Boiler 7, main steam header 8, screw expansion generating set 9, extracting tower 10, activated charcoal adding apparatus 11, bag filter 12, air inducing Machine 13 and chimney 14;
Granulated garbage fuel is transported in the feed hopper of screw conveyor 2 by belt conveyor 1;Screw conveyor 2 is quantitative Granulated garbage fuel is transported to the feed inlet of gasification furnace 3;The fuel gas outlet of gasification furnace 3 passes through gas pipeline and secondary combustion 6 fuel gas entrance of room is burnt to be connected;
4 air outlet of air blower is connected by the first air inducing pipeline with 3 air inlet of gasification furnace;Second-time burning air blower 5 passes through Second air inducing pipeline is connected with 6 air inlet of secondary combustion chamber;6 hot fume of secondary combustion chamber outlet with 7 hot fume of flue gas boiler into Mouth is connected;The outlet of 7 high temperature and high pressure steam of flue gas boiler is connected by main steam header 8 with 9 steam inlet of screw expansion generating set;
7 waste heat flue gas of flue gas boiler is connected by the first smoke tube with 10 smoke air inlet of extracting tower;10 cigarette of extracting tower Gas gas outlet is connected by the second smoke tube with 12 air inlet of bag filter;12 gas outlet of bag filter passes through third cigarette Airway is connected with 13 air inlet of air-introduced machine;13 air outlet of air-introduced machine passes through the air inlet of the 4th smoke tube and 14 bottom of chimney It is connected;
The air that granulated garbage fuel and air blower 4 blast in gasification furnace 3 is generated in closed space high temperature burning can Combustion property gas;Imflammable gas includes carbon monoxide, hydrogen and methane;
The air blasted in secondary combustion chamber 6 with second-time burning air blower 5 is mixed, and second-time burning is in original gasification At a temperature of further increase that flue-gas temperature is higher, and flue-gas temperature reaches 1100 DEG C or more;
Flue gas boiler 7, main steam header 8 and screw expansion generating set 9 are connected, and flue gas boiler 7 is by 1100 DEG C of cigarette The steam that high temperature and pressure is generated after gas heat exchange, is conveyed, screw expansion generating set 9 is in high temperature and pressure by main steam header 8 It generates electricity under the action of steam;
Extracting tower 10 solid waste flue gas by way of wet type deacidification to the flue gas after energy exchange carry out solid waste filtering with And dissolution harmful smoke;
Bag filter 12 is for re-filtering to the minute dusts not filtered in flue gas, flue gas after filtering Reach discharge standard;
Air-introduced machine 13 passes through chimney 14 after being pressurized the gas that can be discharged after filtering and is discharged into eminence;Active carbon is thrown Feeder apparatus 11 is arranged on the second smoke tube, and carrying out absorption to nuisances such as the acid mists taken out of in extracting tower 10 reduces pollutant Concentration reduces acid mist etc. and corrodes in 12 filter process of bag filter to equipment.
Wherein, electricity-generating method the following steps are included:
SS001 gasification is decomposed, and granulated garbage fuel and the air blower 4 for being transported to the addition in gasification furnace 3 are total to gasification furnace 3 Under conditions of gas supply, gasification temperature reaches 710 DEG C -840 DEG C, and granulated garbage fuel carries out pyrolytic gasification reaction, big in rubbish Molecule steady state mass resolves into the inflammable fuel gas of small molecule;
The fuel gas generated in SS001 is input in secondary combustion chamber 6 by SS002 second-time burning by gas pipeline The fuel gas of input carries out mixing full combustion with the air that second-time burning air blower 5 blasts, and flue-gas temperature reaches 1100 DEG C More than;
The high-temperature flue gas generated in SS002 is passed through and carries out returning for thermal energy in flue gas boiler 7 by the recycling of SS003 flue gas heat It receives, heats the water vapour that the water in flue gas boiler 7 generates high temperature and pressure;
The water vapour of the high temperature and pressure generated in SS003 is conveyed to screw expansion by main steam header 8 by SS004 power generation Generating set 9 generates electricity, and screw expansion generating set 9 and power grid are grid-connected;
The low energy flue gas after the recovery of thermal energy in SS003 is transported in extracting tower 10 and carries out at depickling by SS005 deacidifying flue gas Reason, further decreases flue-gas temperature;
Flue gas in SS005 by cooling depickling is passed through bag-type dust by the second smoke tube by SS006 flue gas ash removal Bag-type dust is carried out in device 12, the activated charcoal adding apparatus 11 on the second smoke tube is interrupted into the second smoke tube continuously to be added Add active carbon to adsorb the harmful substance in flue gas, reduces gas pollutant content, reach discharge standard;
SS007 flue gas emission is pressurized the gas after dust removal and filtration in SS006 by air-introduced machine 13, is transported to cigarette High altitude discharge is carried out in chimney 14.
Wherein, active carbon includes powdered activated carbon or block absorbent charcoal in activated charcoal adding apparatus 11.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one of the utility model In embodiment or example.In the present specification, schematic expression of the above terms be not necessarily referring to identical embodiment or Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiment or examples In can be combined in any suitable manner.
The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously There is no the details that detailed descriptionthe is all, also not limiting the utility model is only the specific embodiment.Obviously, according to this theory The content of bright book can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably The principles of the present invention and practical application are explained, so that skilled artisan be enable to better understand and utilize this Utility model.The utility model is limited only by the claims and their full scope and equivalents.

Claims (2)

1. refuse gasification dual firing chamber flue gas Boiler Steam screw expansion electricity generation system, including belt conveyor (1), screw conveyor (2), gasification furnace (3), air blower (4), second-time burning air blower (5), secondary combustion chamber (6), flue gas boiler (7), main steam header (8), screw expansion generating set (9), extracting tower (10), activated charcoal adding apparatus (11), bag filter (12), air-introduced machine (13) and chimney (14), it is characterised in that:
Granulated garbage fuel is transported in the feed hopper of screw conveyor (2) by the belt conveyor (1);The helical feed The quantitative feed inlet that granulated garbage fuel is transported to gasification furnace (3) of machine (2);The fuel gas outlet of the gasification furnace (3) is logical Gas pipeline is crossed to be connected with secondary combustion chamber (6) fuel gas entrance;
Air blower (4) air outlet is connected by the first air inducing pipeline with gasification furnace (3) air inlet;The second-time burning air blast Machine (5) is connected by the second air inducing pipeline with secondary combustion chamber (6) air inlet;Secondary combustion chamber (6) hot fume outlet with Flue gas boiler (7) hot fume import is connected;Main steam header (8) and spiral shell are passed through in flue gas boiler (7) the high temperature and high pressure steam outlet Bar expansion power generation unit (9) steam inlet is connected;
Flue gas boiler (7) the waste heat flue gas is connected by the first smoke tube with extracting tower (10) smoke air inlet;It is described de- Acid tower (10) flue gas gas outlet is connected by the second smoke tube with bag filter (12) air inlet;The bag filter (12) gas outlet is connected by third smoke tube with air-introduced machine (13) air inlet;Air-introduced machine (13) air outlet passes through the 4th Smoke tube is connected with the air inlet of chimney (14) bottom;The activated charcoal adding apparatus (11) is arranged in the second smoke tube On.
2. refuse gasification dual firing chamber flue gas Boiler Steam screw expansion electricity generation system according to claim 1, feature exist In active carbon includes powdered activated carbon or block absorbent charcoal in the activated charcoal adding apparatus (11).
CN201821565374.8U 2018-09-25 2018-09-25 Refuse gasification dual firing chamber flue gas Boiler Steam screw expansion electricity generation system Expired - Fee Related CN209068514U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109268836A (en) * 2018-09-25 2019-01-25 无锡市特能机电有限公司 Refuse gasification dual firing chamber flue gas Boiler Steam screw expansion electricity generation system
CN111288452A (en) * 2020-02-12 2020-06-16 王丽枝 Conveying system for pyrolysis and gasification of garbage
CN111288461A (en) * 2020-04-10 2020-06-16 上海东石塘再生能源有限公司 Control system and method for controlling charging amount of sludge
CN113685823A (en) * 2021-08-20 2021-11-23 乾健天勤环保设备(江苏)有限公司 Vertical incinerator system and process flow

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109268836A (en) * 2018-09-25 2019-01-25 无锡市特能机电有限公司 Refuse gasification dual firing chamber flue gas Boiler Steam screw expansion electricity generation system
CN111288452A (en) * 2020-02-12 2020-06-16 王丽枝 Conveying system for pyrolysis and gasification of garbage
CN111288461A (en) * 2020-04-10 2020-06-16 上海东石塘再生能源有限公司 Control system and method for controlling charging amount of sludge
CN113685823A (en) * 2021-08-20 2021-11-23 乾健天勤环保设备(江苏)有限公司 Vertical incinerator system and process flow

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Granted publication date: 20190705