CN104456571B - The method and device of house refuse generating - Google Patents
The method and device of house refuse generating Download PDFInfo
- Publication number
- CN104456571B CN104456571B CN201410606561.6A CN201410606561A CN104456571B CN 104456571 B CN104456571 B CN 104456571B CN 201410606561 A CN201410606561 A CN 201410606561A CN 104456571 B CN104456571 B CN 104456571B
- Authority
- CN
- China
- Prior art keywords
- temperature
- combustion gas
- house refuse
- air
- heavy duty
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000567 combustion gas Substances 0.000 claims abstract description 87
- 238000000034 method Methods 0.000 claims abstract description 71
- 239000007789 gas Substances 0.000 claims abstract description 53
- 238000002309 gasification Methods 0.000 claims abstract description 48
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 36
- 230000005611 electricity Effects 0.000 claims abstract description 22
- 235000019738 Limestone Nutrition 0.000 claims abstract description 13
- 239000006028 limestone Substances 0.000 claims abstract description 13
- 229920002456 HOTAIR Polymers 0.000 claims description 19
- 239000000428 dust Substances 0.000 claims description 18
- 239000001301 oxygen Substances 0.000 claims description 17
- 229910052760 oxygen Inorganic materials 0.000 claims description 17
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 17
- 239000002912 waste gas Substances 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 5
- 238000004064 recycling Methods 0.000 abstract description 3
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 abstract 1
- KVGZZAHHUNAVKZ-UHFFFAOYSA-N p-dioxin Chemical compound O1C=COC=C1 KVGZZAHHUNAVKZ-UHFFFAOYSA-N 0.000 description 55
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 13
- 238000002485 combustion reaction Methods 0.000 description 10
- 238000007792 addition Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 229910052799 carbon Inorganic materials 0.000 description 8
- 239000000460 chlorine Substances 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- 238000010248 power generation Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000002893 slag Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 230000002427 irreversible Effects 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 239000002918 waste heat Substances 0.000 description 4
- 238000004056 waste incineration Methods 0.000 description 4
- 239000002956 ash Substances 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000010884 boiler slag Substances 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000001110 calcium chloride Substances 0.000 description 2
- 229910001628 calcium chloride Inorganic materials 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium monoxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000004059 degradation Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000001737 promoting Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 231100000419 toxicity Toxicity 0.000 description 2
- 230000001988 toxicity Effects 0.000 description 2
- 206010002660 Anoxia Diseases 0.000 description 1
- 241000976983 Anoxia Species 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- 230000003213 activating Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking Effects 0.000 description 1
- 238000011030 bottleneck Methods 0.000 description 1
- 230000000711 cancerogenic Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 231100000078 corrosive Toxicity 0.000 description 1
- 231100001010 corrosive Toxicity 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000001473 noxious Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002194 synthesizing Effects 0.000 description 1
- -1 therefore Chemical compound 0.000 description 1
- 230000001131 transforming Effects 0.000 description 1
Abstract
The present invention relates to garbage recycling field, in particular to the method and device of one way of life garbage power.The method of this house refuse generating, comprises the following steps: 1), in house refuse, add pulverized limestone laggard row gasification process, and the combustion gas obtained is detained at least 2 seconds at a temperature of higher than 850 DEG C；Obtain single treatment combustion gas；2), described single treatment combustion gas is carried out after dedusting at a temperature of higher than 500 DEG C heat exchange process so that it is temperature is down to less than 500 DEG C, more than saturated-steam temperature, is obtained after-treatment combustion gas；3), described after-treatment combustion gas input is generated electricity to heavy duty gas turbine；Wherein, the chamber temperature of described heavy duty gas turbine is not less than 1350 DEG C；The method of this house refuse generating can realize the zero-emission of dioxin.
Description
Technical field
The present invention relates to garbage recycling field, in particular to one way of life rubbish
The method and device of generating.
Background technology
Currently for the recycling field of house refuse, more concentrating on is translated into
Applied research in terms of liquid or gaseous fuel.Attainable path for transformation mainly includes transconversion into heat
Method and bioanalysis two kinds；Wherein, owing to bioanalysis industrialized scale is restricted, therefore,
House refuse is processed in the related frequently with thermochemical method.
Concrete, thermochemical method includes liquefaction and two kinds of processing modes of gasification；The process of liquefaction
Middle meeting contains unstable and corrosive component, and the liquid fuel grade for being obtained carries
The technical bottleneck risen also does not breaks through, and its operating technology is immature.Therefore, house refuse is entered
Row gasification process, and will the combustion gas that obtain carries out generating after gasification is common in correlation technique
Trash processing way.
But, owing to, during by domestic garbage gasification, a certain amount of two evils can be produced
(the phenyl ring material produced in combustion process and chlorine can promote the generation of dioxin to English, and two dislike
English is the noxious substance that a kind of toxicity is the most serious, is that toxicity known to the mankind is the most up to now
Strong pollutant, IARC has been classified as mankind's one-level carcinogen), and
Within the scope of suitable temperature, such as 270-500 DEG C, dioxin can persistently synthesize and be mixed in and obtained
In the combustion gas obtained.During combustion gas being generated electricity, dioxin will be discharged into ring
In border, and then environmental pollution can be caused.
For the technology of waste incineration and generating electricity, the patent Shen of Application No. 201210174821.8
Please, disclose rotary kiln waste incineration and generating electricity equipment, although it achieves by burning away the refuse
And carry out the effect generated electricity, but, the dioxin produced in burning process is not given by it
Any process means, so, while it realizes garbage power, will necessarily band cause two dislike
The problem of environmental pollution that English causes.
The patent application of Application No. 201210499370.5 discloses a kind of waste incineration and generating electricity
Factory's electron beam irradiation degraded dioxin device and method；Although it passes through electron accelerator irradiation
Sample containing dioxin molecule so that the electron beam that electron accelerator produces divides with dioxin
Son interacts and achieves the degradation effect of dioxin；But still without realizing degradable two
Disliking the effect of English, accessible degradation rate is about 90%, it is impossible to reach the zero-emission of dioxin
Put, however it remains problem of environmental pollution.
To sum up, it is provided that one way of life garbage power and realize the method for dioxin zero discharge and be
A technical problem urgently to be resolved hurrily in this area.
Summary of the invention
The method that it is an object of the invention to one way of life garbage power, to solve above-mentioned skill
Art problem.Another object of the present invention is to provide one to realize house refuse generating side
The equipment of method.
The method providing one way of life garbage power in an embodiment of the present invention, including with
Lower step:
1), in house refuse, pulverized limestone laggard row gasification process, and the combustion that will obtain are added
Gas is detained at least 2 seconds at a temperature of higher than 850 DEG C；Obtain single treatment combustion gas；
2), described single treatment combustion gas is changed after dedusting at a temperature of higher than 500 DEG C
Heat treatment so that it is temperature is down to less than 500 DEG C, more than saturated-steam temperature, is obtained secondary
Process combustion gas；
3), described after-treatment combustion gas input is generated electricity to heavy duty gas turbine；Described
The chamber temperature of heavy duty gas turbine is not less than 1350 DEG C.
The method of this house refuse generating that the present invention provides, by house refuse advanced person's circulation of qi promoting
Change processes, and obtains single treatment combustion gas.During gasification process, dioxin can be produced.
The boiling point of dioxin is 75 DEG C, often generates at a temperature of 270-500 DEG C, reaches 705 DEG C
Time, it starts to decompose, and when 850 DEG C, within the several seconds, decomposable asymmetric choice net is complete.Therefore,
After the combustion gas obtained is detained at least 2 seconds at a temperature of higher than 850 DEG C, in gasification
The dioxin generated substantially completely decomposes.Simultaneously as be mixed with Calx in house refuse
Powder, pulverized limestone can be with the Cl of generation in gasification2React, and generate CaCl2, enter
And consume Cl2, it is effectively prevented recombining of dioxin.
Subsequently, single treatment combustion gas is carried out high-temperature dust removal process, in this process, will remove
The temperature that dirt processes is disposed greater than 500 DEG C (preferably more than 705 DEG C), owing to this temperature is high
In the synthesis temperature of dioxin, produce so not having dioxin, and then ensure that and removed
Dust impurities do not carry dioxin.After dedusting, it is carried out heat exchange process, and will once
The temperature processing combustion gas is down to less than 500 DEG C, more than saturated vapor temperature, due to this temperature
In the production temperature range of dioxin, therefore, dioxin can recombine；And in heat exchange
During, (may can carry dioxin along with the generation of aqueous water after discharge, enter
And do not meet zero emission requirement).To this end, processed by heat exchange, by the temperature of single treatment combustion gas
Degree is down to less than 500 DEG C, (combustion gas is corresponding satisfying under both constant-pressures for saturated vapor temperature
And vapor (steam) temperature) more than, do not have aqueous water and produce, and then the most there is not dioxin with water
Situation about discharging.
After obtaining after-treatment combustion gas, it is entered into heavy duty gas turbine and generates electricity,
Owing to the chamber temperature of heavy duty gas turbine is not less than 1350 DEG C；And Organic substance is at 1350 DEG C
All can be converted into inorganic matter, and irreversible.Therefore, dioxin is through more than 1350 DEG C
After temperature, get final product 100% and be converted into inorganic matter, and then achieve whole garbage power process
The zero-emission of middle dioxin.
Optionally, in step 1) in: during described gasification process, to gasification process
Equipment is passed through purity and is not less than the oxygen of 70%.
In order to improve the calorific value of obtained combustion gas, during gasification process, preferably to
Gasification process equipment adds purity and is not less than the oxygen of 70%；It is furthermore preferred that oxygen is pure
Degree is higher than 90% (such as 92%-93%).By this operation, the calorific value of obtained combustion gas can reach
To 5500kcal/m3。
Optionally, in step 1) in: the temperature during described gasification is arranged on
850-1100℃。
Optionally, in step 1) in: the time of described delay is the 2-20 second；
It is said that in general, at a temperature of higher than 850 DEG C, dioxin can decompose in 2 seconds,
But, to be on the safe side, preferably it is detained at a temperature of higher than 850 DEG C 2-20
Second, this time be enough to realize whole decomposition of dioxin.
Optionally, in step 2) in: the temperature of described dedusting is 705-800 DEG C.
During dust removal process, in theory, its temperature is positioned above the life of dioxin
Become temperature (500 DEG C)；It is furthermore preferred that on the premise of equipment can bear temperature,
Its temperature is arranged on 705-800 DEG C.
Optionally, in step 3) in: the chamber temperature of described heavy duty gas turbine is
1350-1800℃。
Heavy duty gas turbine can be done work by burning after-treatment combustion gas, it is achieved heat energy is to machinery
Conversion of energy；Again by mechanical energy be electric energy realize generating.It addition, at 1350-1800 DEG C
At a temperature of, all Organic substances contained in after-treatment combustion gas all can be changed into inorganic matter,
And it is irreversible；Dioxin changes the most therewith, there is not dioxin in the waste gas therefore discharged,
And then achieve the zero-emission of dioxin.
Optionally, in step 3) in, specifically include:
Described after-treatment combustion gas input is generated electricity to heavy duty gas turbine, and will produce
Waste gas be used for adding hot-air；
Air after heating returned to step 2) in heat exchange process, be used for making described
Single treatment combustion gas is lowered the temperature.
In order to improve the utilization rate of the waste gas produced in power generation process, can be by power generation process
The waste gas produced is used for adding hot-air, and the temperature of the air after this preliminary heating is about 100 DEG C,
During heat exchange process can be returned it to so that the temperature of single treatment combustion gas reduces,
And the temperature of self raises, and then achieves making full use of of waste heat.
Optionally, will heating after air returning to step 2) in heat exchange process in,
After making the step that described single treatment combustion gas is lowered the temperature, also include；
Air after heat exchange is used for baking step 1) in house refuse.
Air after heat exchange, its temperature can raise, and further uses at the beginning of operation
In rubbish baking operation during the beginning；Further achieve making full use of of waste heat.
A kind of device of the method realizing the generating of above-mentioned house refuse, including:
Gasification furnace: for the domestic garbage gasification of pulverized limestone will be mixed with；
High-temperature dust removal equipment: for single treatment combustion gas is carried out dedusting；
Heat exchanger: for the combustion gas after dedusting is carried out heat exchange；
Heavy duty gas turbine: for after-treatment combustion gas is generated electricity；
Described gasification furnace, high-temperature dust removal equipment, heat exchanger, heavy duty gas turbine are sequentially connected with.
Optionally, this device also includes:
Hot-air stove: for utilizing the waste gas discharging described heavy duty gas turbine to add hot-air；
Pressure fan: for described hot-air stove input air；
Rubbish drying oven: for the air through heat exchanger is dried house refuse.
Accompanying drawing explanation
In order to be illustrated more clearly that the specific embodiment of the invention or technical side of the prior art
Case, will make the accompanying drawing used required in detailed description of the invention or description of the prior art below
Introduce simply, it should be apparent that, the accompanying drawing in describing below is some enforcements of the present invention
Mode, for those of ordinary skill in the art, in the premise not paying creative work
Under, it is also possible to other accompanying drawing is obtained according to these accompanying drawings.
The flow chart of the method for the house refuse generating that Fig. 1 provides for the embodiment of the present invention one；
The operating process of the method for the house refuse generating that Fig. 2 provides for the embodiment of the present invention two
Schematic diagram.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below will be to this
Bright technical scheme carries out clear, complete description, based on the specific embodiment party in the present invention
Formula, those of ordinary skill in the art on the premise of not making creative work obtained by
Other embodiments all, broadly fall into the scope that the present invention is protected.
In the present invention, it is provided that the method for one way of life garbage power, purport overcomes existing skill
The defect of dioxin zero discharge can not be realized during garbage power present in art；Concrete,
The present invention is to be achieved through the following technical solutions dioxin zero discharge technique during garbage power
:
House refuse generating method, comprise the following steps: 1), in house refuse add
Pulverized limestone laggard row gasification process, and by the combustion gas that obtains at a temperature of higher than 850 DEG C stagnant
It is left to few 2 seconds；Obtain single treatment combustion gas；2), by single treatment combustion gas higher than 500 DEG C
At a temperature of carry out heat exchange process after dedusting so that it is temperature is down to less than 500 DEG C, saturated steaming
More than stripping temperature (according to the different requirements to gaseous-pressure of the gas turbine of different size, no
Temperature with its saturated vapor of combustion gas of pressure is different, in this operation, meets the temperature after cooling
Degree is higher than the saturated-steam temperature under the pressure residing for single treatment combustion gas), obtain secondary
Process combustion gas；3), after-treatment combustion gas input is generated electricity to heavy duty gas turbine；Its
In, the chamber temperature of heavy duty gas turbine is not less than 1350 DEG C.
It addition, gasification produce the calorific value of combustion gas in order to improve, guarantee the zero of dioxin
Discharge, realize making full use of of waste heat in power generation process；Base in above-mentioned technical scheme
On plinth, it is also possible to combine with the next item down or whole restrictions, to obtain further skill
Art scheme: in step 1) in: during gasification process, logical in gasification process equipment
Enter purity and be not less than the oxygen (it is furthermore preferred that the purity of oxygen is not less than 90%) of 70%；
Or the temperature during gasification is arranged on 850-1100 DEG C；Or the time being detained is the 2-20 second；
Or the temperature of dedusting is 705-800 DEG C；Or in step 3) in: the burning of heavy duty gas turbine
Room temperature is 1350-1800 DEG C；Or in step 3) in, specifically include: after-treatment is fired
Gas input generates electricity to heavy duty gas turbine, and is used for adding hot-air by the waste gas of generation；
Will heating after air return to step 2) in heat exchange process in, be used for making single treatment
Combustion gas is lowered the temperature.More specifically, will heating after air returning to step 2) in heat exchange
In process, after making the step that single treatment combustion gas is lowered the temperature, also include；Will be through changing
Air after heat be used for baking step 1) in house refuse.
The method of this house refuse generating that the present invention provides, by house refuse advanced person's circulation of qi promoting
Change processes, and obtains single treatment combustion gas.During gasification process, dioxin can be produced.
The boiling point of dioxin is 75 DEG C, often generates at a temperature of 270-500 DEG C, reaches 705 DEG C
Time, it starts to decompose, and when 850 DEG C, within the several seconds, decomposable asymmetric choice net is complete.Therefore,
After the combustion gas obtained is detained at least 2 seconds at a temperature of higher than 850 DEG C, in gasification
The dioxin generated substantially completely decomposes.Simultaneously as be mixed with Calx in house refuse
Powder, pulverized limestone can be with the Cl of generation in gasification2React, and generate CaCl2, enter
And consume Cl2, it is effectively prevented recombining of dioxin.
The single treatment combustion gas obtained is carried out high-temperature dust removal process, in this process, incites somebody to action
The temperature of dust removal process is disposed greater than 500 DEG C, owing to this temperature is more than the generation of dioxin
Temperature, so dioxin cannot generate, and then ensure that removed dust impurities does not carries
Dioxin.After dedusting, it is carried out heat exchange process, and the temperature of single treatment combustion gas is dropped
To less than 500 DEG C, more than saturated-steam temperature, owing to this temperature is in the generation temperature of dioxin
In the range of degree, therefore, dioxin can recombine；And during heat exchange, may
Generation along with aqueous water (can be carried dioxin, and then not meet zero-emission and want after discharge
Ask).To this end, processed by heat exchange, the temperature of single treatment combustion gas is down to less than 500 DEG C,
More than saturated-steam temperature so that the temperature after heat exchange is corresponding more than under the pressure residing for combustion gas
Saturated vapor temperature (concrete temperature is depending on the pressure residing for single treatment combustion gas), no
Have aqueous water to produce, and then the most there is not the situation that dioxin is discharged with water.
After obtaining after-treatment combustion gas, it is entered into heavy duty gas turbine and generates electricity,
Owing to the chamber temperature of heavy duty gas turbine is not less than 1350 DEG C；And Organic substance is at 1350 DEG C
All can be converted into inorganic matter, and irreversible.Therefore, dioxin is through more than 1350 DEG C
After temperature, get final product 100% and be converted into inorganic matter, and then achieve whole garbage power process
The zero-emission of middle dioxin.
It follows that the present invention combines above-mentioned content, enumerate the specific embodiment of the present invention,
Refer to herein below:
Embodiment one
Refer to Fig. 1, the method for this house refuse generating that the present invention provides, including with
Lower step:
Step 101: addition pulverized limestone laggard row gasification process in house refuse, and will
To combustion gas at a temperature of higher than 850 DEG C, be detained at least 2 seconds；Obtain single treatment combustion gas；
In a step 101, concrete, mixing house refuse when, pulverized limestone is added it
In, then another and send in gasification process equipment so that the pulverized limestone of addition with gasified
The chlorine produced in journey reacts, and then is effectively prevented chlorine and the generation of phenyl ring material
The probability of dioxin.Can carry out it addition, combustion gas will be obtained 850 DEG C of delay 3-5 seconds
The operation of high-temperature dust removal.
Step 102: single treatment combustion gas is carried out after dedusting at a temperature of higher than 500 DEG C
Heat exchange processes so that it is temperature is down to less than 500 DEG C, more than saturated-steam temperature, is obtained two
Secondary process combustion gas；
In a step 102, by can effectively single treatment be fired during high-temperature dust removal
Some solid dust impurity contained in gas removes, it is even more important that due to the mistake of dedusting
In journey, temperature is higher than 500 DEG C, more preferably higher than 705 DEG C, and this temperature is higher than the decomposition of dioxin
Temperature, therefore, does not have dioxin during dedusting and generates, therefore, removed
Solid dust impurity also will not there is dioxin by adhesive tape.Concrete, in the present embodiment, remove
The temperature of dirt is set in 710 DEG C.
And during heat exchange, specifically used heat exchanger, fires the single treatment after dedusting
Gas is down to 224-400 DEG C by the original temperature higher than 500 DEG C；224 DEG C be gas booster extremely
Saturated vapor temperature during 2.5MPa, more than 224 DEG C, below gaseous-pressure 2.5MPa,
Combustion gas does not have aqueous water and generates, and then the most there are not two regenerated in this heat transfer process
Dislike the probability that English is discharged with aqueous water.
Step 103: after-treatment combustion gas input is generated electricity to heavy duty gas turbine, its
In, the chamber temperature of heavy duty gas turbine is not less than 1350 DEG C.
In step 103, the chamber temperature of heavy duty gas turbine is not less than 1350 DEG C of (tools
Body is 1350-1800 DEG C of selection), this temperature is so that after-treatment combustion gas is at combustion power generation
During, all of organic substance is all converted into inorganic matter, and, this conversion is irreversible
Turn.Therefore, all in previous step process after, may remaining trace dioxin also
Can be converted into inorganic matter, and then during achieving garbage power, the zero-emission of dioxin.
So that the method for the house refuse generating of the above embodiment of the present invention obtains preferably
Application, more efficiently obtain practical application, the present invention also on the basis of above-described embodiment it
On provide embodiment two, embodiment two be i.e. above-described embodiment house refuse generating side
Limiting further and increasing of method, is now described in detail and explains:
Embodiment two
In the present embodiment, the preparation method of the method for house refuse generating comprises the following steps,
Operating process substantially refers to Fig. 2:
S1: carry out gasification process after being mixed with pulverized limestone in house refuse in the lump, and will obtain
Combustion gas 900 DEG C be detained 3 seconds；Obtain single treatment combustion gas；
Optionally, during above-mentioned gasification process, it is passed through in gasification process equipment
Purity is not less than the oxygen of 70% (being specially 92% in the present embodiment)；Reason is as follows:
Owing to air contains the nitrogen of about 80%, and nitrogen is not involved in biomass gasification process
Any reaction, after nitrogen enters gasification furnace, fuel gases calorific value will be diluted, desired
5500kcal/m3Will be diluted as less than 1600kcal/m3, and this low-calorie combustion gas does not has
Use value, it is impossible to generating more can not can not be processed as CNG for resident and enterprise.
To this end, for the calorific value improving combustion gas, oxygen that purity high is preferably used in the present embodiment
Gas, controls nitrogen and enters gasification system.In industrialization process, for processing rubbish ＞
The project of 300t/d, separately joins a deep cooling station, divides air into oxygen and nitrogen,
Taking its oxygen, purity is up to 99.6%.Rubbish is processed for the project that scale is less, such as day
The project of ＜ 300t/d, can use molecular sieve oxygen generation station, divides air into oxygen and nitrogen,
Take its oxygen, oxygen purity 70-93%.
S2: single treatment combustion gas is carried out after dedusting at a temperature of 800 DEG C heat exchange process,
Make its temperature be down to 230 DEG C (gas booster to 2.8MPa send into heavy duty gas turbine time,
During 2.8MPa, saturated-steam temperature is 230 DEG C, more than 230 DEG C, below 2.8MPa pressure
Time, combustion gas is without aqueous water), obtain after-treatment combustion gas；
The detailed process of this operation and principle thereof with in embodiment one step 102 is consistent,
This does not repeats.
S3: after-treatment combustion gas input is generated electricity to heavy duty gas turbine, and will produce
Waste gas be used for adding hot-air；
Wherein, the chamber temperature at heavy duty gas turbine is 1600 DEG C.
Concrete, after-treatment combustion gas was inputted high temperature resistant gas holder, then through high temperature resistant pressure
Contracting machine generates electricity pumping into heavy duty gas turbine after gas booster.
Due to heavy combustion engine chamber temperature ＞ 1350 DEG C, do work (heat energy is converted into mechanical energy)
After driving engine power generation, the temperature of the waste gas discharging heavy combustion engine is generally greater than 500 DEG C,
In order to realize making full use of of heat energy, in the present embodiment, waste gas is sent into hot-air stove,
And be used for adding hot-air.
It addition, in order to extend heavy combustion engine high-temperature duration, use and increase heavy combustion engine combustion
Burn room burner inner liner height or high-temperature flue gas mode of rotational flow in combustion chamber flame drum is made
Dioxin thoroughly decomposes.
S4: return to the air after heating, in the heat exchange process in S2, be used for making once
Process combustion gas is lowered the temperature；
By the preliminarily heated air of hot-air stove, send into air heat exchanger (i.e. heat exchange cooling),
And single treatment combustion gas temperature when gasification furnace is discharged is about 730 DEG C, after high-temperature dust removal,
Temperature is reduced to less than about 705 DEG C, enters in the convection bank of air heat exchanger.By hot blast
The preliminarily heated air of producer (its temperature is about less than 100 DEG C) sends into air heat exchanger
Convection bank outside, through isolation heat exchange after, from hot-air stove less than 100 DEG C
Air be heated to about 260 DEG C；Single treatment combustion gas is then lowered about 330 DEG C, and
Heavy combustion engine is sent to go generating.
S5: the air after heat exchange is used for the house refuse drying in S1.
By the air after heat exchange, rubbish drying oven is sent to go to dry rubbish；Should be noted that
It is that owing to plastics are 270 DEG C of dissolvings, therefore, the hot blast sending into rubbish drying oven must be low
In 270 DEG C, otherwise dissolving plastic rubbish changes into agglomerate blocking dehydrator.
In experimental verification, the method for the embodiment of the present invention one and two, its slag discharged,
The dust removed and tail gas are all not detected by dioxin.Therefore, provided by the present invention
This house refuse generating method, what it was real achieves the zero-emission of dioxin, separately
Outward, this technology, gas heat utilization efficiency ＞ 60% processed, 1t rubbish gas 100m are utilized3, can make
China 60% straw and house refuse preparing natural gas 200,000,000,000 m3/ a, its alternative oil 2
Hundred million t/a, are conducive to alleviating national energy strategy and threaten.Meanwhile, process rubbish chimney-free, two
Evil English discharges, and waste incineration resident can be avoided to block up the Mass disturbances such as road.At the rubbish of town and country
Reason provides the new outlet of non-secondary pollution.
It addition, the method for garbage power based on above-described embodiment, present invention also offers reality
The now equipment of this electricity-generating method, refer to embodiment three.
Embodiment three
The device of the method realizing the generating of above-mentioned house refuse of embodiment of the present invention offer is concrete
Including:
Gasification furnace: for the domestic garbage gasification of pulverized limestone will be mixed with；High-temperature dust removal equipment:
For single treatment combustion gas is carried out dedusting；Heat exchanger: for the combustion gas after dedusting is carried out
Heat exchange；Heavy duty gas turbine: for after-treatment combustion gas is generated electricity；Gasification furnace, height
Temperature cleaner, heat exchanger, heavy duty gas turbine are sequentially connected with；Hot-air stove: be used for
The waste gas discharging heavy duty gas turbine is utilized to add hot-air；Pressure fan: for occurring to hot blast
Stove input air；Rubbish drying oven: for the air through heat exchanger is dried house refuse.
It addition, for the combustion gas of after-treatment, first input high temperature resistant gas holder, after regulating gas amount again
High temperature resistant compressor is utilized to pump into heavy duty gas turbine by after gas booster.
Above-mentioned device, according to actual project implementation operating mode, sets rational position and connects
Relation, realizes the gasification of house refuse, the high-temperature dust removal of single treatment combustion gas, heat exchange successively
Process, the generating of after-treatment combustion gas, produce hot blast and return to heat exchange process in, heat exchange
Rear air dries house refuse etc..On the one hand the zero-emission of dioxin in power generation process is achieved,
On the other hand the most adequately and reasonably make use of the waste heat that whole process produces.
It addition, for the slag discharged from gasification furnace, its phosphorus content is about 24%.It is with bright
The phosphorus content of the slag of fire burning is different；Naked light burning belongs to oxygen-enriched abundant burning, belongs to oxygen
, in stove, there is C+O in activating QI atmosphere2=CO2.Therefore, the phosphorus content of its slag is the least, about
For 3-5%.But, in the present invention, gasification furnace wants output combustion gas, and C+CO occurs2=2CO；
Belong to reduction reaction, need to carry out under reducing atmosphere, namely under the atmosphere of anoxia
Carry out.Therefore there is no oxygen (O2) react with carbon (C), carbon can only be anti-with carbon dioxide
Should.There is saturation problem in this reaction, namely contains in boiler slag carbon content 24%, combustion gas
CO2Also it is when 24%, to reach balance (no longer reaction), the boiler slag carbon content discharged from gasification furnace
It is 24%.Sending hot-air stove to burn in this slag, the heat of generation is converted to hot blast
And be used for drying rubbish, the ash content carbon about 1% after hot-air stove naked light burns；
Owing to carrying out sorting in operating process before rubbish, host inorganic thing has been broken off,
The ash in remaining Organic substance afterburnt is exactly plant ash, and main component is nitrogen, phosphorus, potassium etc.,
Making full use of of material can be further achieved as Fertilizer application.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention,
For a person skilled in the art, the present invention can have various modifications and variations.All
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made,
Should be included within the scope of the present invention.
Claims (10)
1. the method for one way of life garbage power, comprises the following steps:
1), in house refuse, pulverized limestone laggard row gasification process is added, and by the combustion gas that obtains at height
It is detained at least 2 seconds at a temperature of 850 DEG C；Obtain single treatment combustion gas；
It is characterized in that, further comprising the steps of:
2) at a temperature of higher than 500 DEG C, by described single treatment combustion gas after dedusting, carry out heat exchange process,
Make its temperature be down to less than 500 DEG C, more than saturated-steam temperature, obtain after-treatment combustion gas；
3), described after-treatment combustion gas input is generated electricity to heavy duty gas turbine；
Wherein, the chamber temperature of described heavy duty gas turbine is not less than 1350 DEG C.
The method of house refuse the most according to claim 1 generating, it is characterised in that in step
1) in:
During described gasification process, in gasification process equipment, it is passed through purity is not less than the oxygen of 70%
Gas.
The method of house refuse the most according to claim 1 generating, it is characterised in that in step
1) in:
Temperature during described gasification is arranged on 850-1100 DEG C.
The method of house refuse the most according to claim 1 generating, it is characterised in that in step
1) in:
The time of described delay is the 2-20 second.
The method of house refuse the most according to claim 1 generating, it is characterised in that in step
2) in:
The temperature of described dedusting is 705-800 DEG C.
Method the most according to claim 1, it is characterised in that in step 3) in:
The chamber temperature of described heavy duty gas turbine is 1350-1800 DEG C.
7. the method generated electricity according to the house refuse described in any one of claim 1-6, it is characterised in that
In step 3) in, specifically include:
Described after-treatment combustion gas input is generated electricity to heavy duty gas turbine, and the waste gas that will produce
For adding hot-air；
Will heating after air return to step 2) in heat exchange process in, be used for making described single treatment
Combustion gas is lowered the temperature.
The method of house refuse the most according to claim 7 generating, it is characterised in that will add
Air after heat returns to step 2) in heat exchange process in, be used for making described single treatment combustion gas lower the temperature
Step after, also include:
Air after heat exchange is used for baking step 1) in house refuse.
9. realizing a device for the method that the house refuse described in claim 1 generates electricity, its feature exists
In, including:
Gasification furnace: for the domestic garbage gasification of pulverized limestone will be mixed with；
High-temperature dust removal equipment: for single treatment combustion gas is carried out dedusting；
Heat exchanger: for the combustion gas after dedusting is carried out heat exchange；
Heavy duty gas turbine: for after-treatment combustion gas is generated electricity；
Described gasification furnace, high-temperature dust removal equipment, heat exchanger, heavy duty gas turbine are sequentially connected with.
Device the most according to claim 9, it is characterised in that also include:
Hot-air stove: for utilizing the waste gas discharging described heavy duty gas turbine to add hot-air；
Pressure fan: for described hot-air stove input air；
Rubbish drying oven: for the air through heat exchanger is dried house refuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410606561.6A CN104456571B (en) | 2014-11-02 | The method and device of house refuse generating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410606561.6A CN104456571B (en) | 2014-11-02 | The method and device of house refuse generating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104456571A CN104456571A (en) | 2015-03-25 |
| CN104456571B true CN104456571B (en) | 2017-01-04 |
Family
ID=
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102746903B (en) | Large-scale domestic garbage dry distillation and gasification furnace without exhaust gas or dioxin emission | |
| CN101191059B (en) | Dynamics gasification furnace and exhaust heat boiler composed by the same | |
| CN204388069U (en) | A kind of solid waste pyrolysis formula fusion and gasification treating apparatus | |
| CN102633419A (en) | Sludge pyrolysis treatment process by taking waste plastic as supplementary energy | |
| CN102031150B (en) | Double-fixed bed gasifier and processing method for organic solid wastes | |
| CN106367117A (en) | Household garbage pyrolytic electricity generation method | |
| CN101993733A (en) | Novel municipal solid waste pyrolysis gasification furnace | |
| CN201072128Y (en) | Biomass gasification electric generating apparatus of gas control type thermal decomposition system | |
| CN206768039U (en) | A kind of biomass gasifying furnace of cogeneration of heat and power | |
| CN107177380A (en) | Solid life refuse pyrolytic gasification TRT | |
| CN105351019A (en) | Power generation technique based on pyrolyzation and gasification of refuse derived fuel (RDF) prepared from household refuse and incineration of fuel gas | |
| CN201852110U (en) | Sludge low-temperature themolysis incineration system | |
| CN203669943U (en) | Energy-saving power generation device by using solid wastes | |
| CN108587691A (en) | A kind of system and method for municipal sludge pressurized gasification gas turbine power generation | |
| CN112410049A (en) | Biomass charcoal, heat and electricity cogeneration system and process thereof | |
| CN101974351B (en) | Scale fixed bed biomass gasification power generation production technology and suite of equipment | |
| CN207756595U (en) | A kind of electricity generation system of debirs clean utilization | |
| CN204097297U (en) | Sludge reduction processing equipment for recycling | |
| US9574493B2 (en) | Electricity-generating system | |
| CN104456571B (en) | The method and device of house refuse generating | |
| CN203098053U (en) | Chemical hydrogen-rich gas collecting and utilizing system | |
| CN104860310B (en) | Biomass fuel expansion furnace for preparing expanded graphite | |
| CN108423682A (en) | A kind of calcium carbide factory's ash resource comprehensive circulation utilization method and system | |
| CN105443171A (en) | Incineration power generation process adopting refuse derived fuel (RDF) prepared from refuse | |
| CN106402887A (en) | System and method for drying garbage by means of waste heat from flue gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171215 Address after: 213300 Xingcheng West Road, No. 290, Liyang City, Liyang City, Changzhou, Jiangsu Patentee after: Liyang City Yuanjun Biomass Gas Co. Ltd. Address before: 213300 Changzhou City, Liyang Province, Kunlun Garden District, building 13, unit 201, room two, room Patentee before: Shi Huiyuan |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20190919 Address after: 213300 No. 12 Huaxu Road, Zhuzhuang Town, Liyang City, Changzhou City, Jiangsu Province Patentee after: Liyang City Li Tai Biological Technology Co., Ltd. Address before: 213300 Room 8301, 290 Xingcheng West Road, Bieqiao Town, Liyang City, Changzhou City, Jiangsu Province Patentee before: Liyang City Yuanjun Biomass Gas Co. Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20200220 Address after: 200000 floor 5, building 9, No. 165, Xiangyin Road, Yangpu District, Shanghai Patentee after: Shanghai Yuanshen Environmental Protection Technology Co.,Ltd. Address before: 213300 No. 12 Huaxu Road, Zhuzhuang Town, Liyang City, Changzhou City, Jiangsu Province Patentee before: Liyang City Li Tai Biological Technology Co., Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20201014 Address after: 2 / F, Jiangsu bachelor Garden Hotel, 91 Caochangmen street, Gulou District, Nanjing, Jiangsu Province 210036 Patentee after: Nanjing Jinlu New Energy Technology Co., Ltd Patentee after: Shi Huiyuan Address before: 200000 floor 5, building 9, No. 165, Xiangyin Road, Yangpu District, Shanghai Patentee before: Shanghai Yuanshen Environmental Protection Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20210219 Address after: No. 51, Dongfang East Road, Wujin District, Changzhou City, Jiangsu Province Patentee after: Jiangsu Ruiyi quantum Research Institute Co.,Ltd. Address before: 210036 2nd floor, Jiangsu bachelor's Garden Hotel, 91 Caochangmen street, Gulou District, Nanjing City, Jiangsu Province Patentee before: Nanjing Jinlu New Energy Technology Co., Ltd Patentee before: Shi Huiyuan |