CN118049651A - Oxygen-enriched garbage incineration system - Google Patents
Oxygen-enriched garbage incineration system Download PDFInfo
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- CN118049651A CN118049651A CN202211443381.1A CN202211443381A CN118049651A CN 118049651 A CN118049651 A CN 118049651A CN 202211443381 A CN202211443381 A CN 202211443381A CN 118049651 A CN118049651 A CN 118049651A
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 239000001301 oxygen Substances 0.000 title claims abstract description 65
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 65
- 238000002156 mixing Methods 0.000 claims abstract description 13
- 239000000779 smoke Substances 0.000 claims abstract description 9
- 239000002893 slag Substances 0.000 claims abstract description 6
- 238000004891 communication Methods 0.000 claims description 29
- 239000000428 dust Substances 0.000 claims description 12
- 238000012983 electrochemical energy storage Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000002699 waste material Substances 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 4
- 238000004056 waste incineration Methods 0.000 claims 6
- 230000008676 import Effects 0.000 claims 5
- 238000002485 combustion reaction Methods 0.000 abstract description 19
- 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 description 15
- 239000003344 environmental pollutant Substances 0.000 abstract description 15
- 231100000719 pollutant Toxicity 0.000 abstract description 15
- 239000003245 coal Substances 0.000 abstract description 7
- -1 NO x Inorganic materials 0.000 abstract description 5
- 230000009467 reduction Effects 0.000 abstract description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 46
- 239000003546 flue gas Substances 0.000 description 46
- 239000007789 gas Substances 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000002245 particle Substances 0.000 description 5
- 239000002956 ash Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000005243 fluidization Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000009264 composting Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Abstract
The invention relates to a garbage oxygen-enriched incineration system, which comprises a hearth, a flue, a primary air blower, a secondary air blower and an oxygen generator, wherein a slag discharge port and a primary air chamber are arranged at the bottom end of the hearth; the flue is communicated with the smoke outlet; the outlet of the primary air fan is communicated with the primary air chamber, and the inlet of the primary air fan is communicated with the flue; the outlet of the secondary air blower is communicated with the secondary air inlet; an outlet of the oxygenerator is communicated with an inlet of each of the primary fan and the secondary fan. The garbage oxygen-enriched incineration system can fully burn garbage, does not need to burn coal in a mixing way, saves cost, reduces the generation rate of pollutants such as CO, NO x、SO2, dioxin and the like, and realizes the reduction of pollutant emission in the combustion process.
Description
Technical Field
The invention relates to the technical field of garbage incineration and environmental protection, in particular to a garbage oxygen-enriched incineration system.
Background
At present, four methods for treating garbage are available, such as sanitary landfill, incineration, composting and comprehensive utilization. Compared with composting and landfill methods, the incineration method has the advantages of resource utilization, harmlessness, reduction and the like, which cannot be exceeded by other methods.
The existing garbage incineration technology mainly comprises the following steps: a grate furnace garbage incineration technology, a circulating fluidized bed garbage incineration technology, a rotary kiln garbage incineration technology, a coal-fired boiler garbage blending combustion technology and the like. The existing garbage incineration technology has the problems of low combustion efficiency, higher CO concentration, complex gaseous pollutants such as NOx, SO 2, dioxin and the like, high carbon emission and the like, wherein a furnace starting and stopping operation is complex, the conventional fossil fuels such as coal and oil are required to be mixed for a circulating fluidized bed, and the problems of low garbage treatment capacity and the like exist in the mixing combustion of a rotary kiln and a coal-fired boiler. At present, a garbage incineration technology and a garbage incineration method with high combustion efficiency and low pollutant and carbon emission are not formed.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, the embodiment of the invention provides the garbage oxygen-enriched incineration system, which not only provides oxygen-enriched conditions for garbage incineration, but also can fully burn garbage without mixing coal, saves cost, reduces the pollutant generation rate of CO, NO x、SO2, dioxin and the like, and realizes the reduction of pollutant emission in the combustion process.
The garbage oxygen-enriched incineration system of the embodiment of the invention comprises:
The device comprises a furnace, wherein the bottom end of the furnace is provided with a slag discharge port and a primary air chamber, the furnace is provided with a feed port and a smoke discharge port, the feed port is positioned above the primary air chamber, the furnace is provided with a secondary air inlet, and the secondary air inlet is positioned above the feed port;
The flue is communicated with the smoke outlet;
the outlet of the primary air fan is communicated with the primary air chamber, and the inlet of the primary air fan is communicated with the flue;
The outlet of the secondary air blower is communicated with the secondary air inlet; and
And an outlet of the oxygenerator is communicated with an inlet of each of the primary fan and the secondary fan.
The garbage oxygen-enriched incineration system provided by the embodiment of the invention can fully burn garbage, does not need to burn coal, saves cost, reduces the generation rate of pollutants such as CO, NO x、SO2 and dioxin, and realizes the reduction of pollutant emission in the combustion process.
In some embodiments, the waste oxygen-enriched incineration system further comprises:
The induced draft fan is provided with a first inlet, a first outlet and a second outlet, the first inlet is communicated with the outlet of the flue, and the first outlet is communicated with the inlet of the primary fan; and
And the inlet of the condenser is communicated with the second outlet of the induced draft fan.
In some embodiments, the waste oxygen-enriched incineration system further comprises a compressor, an inlet of the compressor being in communication with the second outlet of the induced draft fan, an outlet of the compressor being in communication with an inlet of the condenser.
In some embodiments, the garbage oxygen-enriched incineration system further comprises an air preheater disposed in the flue, the air preheater having a first heat exchange channel and a second heat exchange channel, an inlet of the first heat exchange channel being in communication with a first outlet of the induced draft fan, an outlet of the first heat exchange channel being in communication with an inlet of the primary air fan, an inlet of the second heat exchange channel being in communication with an outlet of the oxygenerator, an outlet of the second heat exchange channel being in communication with an inlet of each of the primary air fan and the secondary air fan.
In some embodiments, the waste oxygen-enriched incineration system further comprises:
the air dividing chamber is provided with a second inlet, a third outlet and a fourth outlet, the second inlet is communicated with the outlet of the second heat exchange channel, and the fourth outlet is communicated with the inlet of the secondary air fan; and
The air mixing chamber is provided with a third inlet, a fourth inlet and a fifth outlet, the third inlet is communicated with the third outlet, the fourth inlet is communicated with the outlet of the first heat exchange channel, and the fifth outlet is communicated with the inlet of the primary fan.
In some embodiments, the waste oxygen-enriched incineration system further comprises:
The water cooling wall is arranged in the hearth;
the steam drum is arranged on the hearth and is communicated with the water cooling wall;
The superheater is arranged in the flue, and an inlet of the superheater is communicated with the steam drum;
The steam turbine is provided with a steam inlet, a steam outlet and a power output shaft, and the steam inlet of the steam turbine is communicated with the outlet of the superheater; and
The economizer is arranged in the flue, the inlet of the economizer is communicated with the steam outlet of the steam turbine, and the outlet of the economizer is communicated with the steam drum.
In some embodiments, the waste oxygen-enriched incineration system further comprises:
a generator connected to the power output shaft of the steam turbine; and
The electric generator is electrically connected with the electrochemical energy storage device, and the electrochemical energy storage device is electrically connected with each of the oxygenerator, the compressor, the condenser, the induced draft fan, the primary fan and the secondary fan.
In some embodiments, the waste oxygen-enriched incineration system further comprises:
The outlet of the garbage crusher is communicated with the feeding hole, and the garbage crusher is electrically connected with the electrochemical energy storage device; and
The bin is communicated with the inlet of the garbage crusher.
In some embodiments, the garbage oxygen-enriched incineration system further comprises a preheater disposed within the flue, an inlet of the preheater being in communication with an outlet of the bin, an outlet of the preheater being in communication with an inlet of the garbage crusher.
In some embodiments, the waste oxygen-enriched incineration system further comprises a dust remover having a fifth inlet in communication with the outlet of the flue, an ash discharge port, and an exhaust port in communication with the first inlet of the induced draft fan.
Drawings
FIG. 1 is a schematic diagram of a refuse oxygen-enriched incineration system according to an embodiment of the present invention;
fig. 2 is a partial enlarged view of fig. 1.
Reference numerals:
a garbage oxygen-enriched incineration system 100;
Hearth 1, slag discharge port 101, primary air chamber 102, feed port 103, smoke exhaust port 104, and secondary air inlet 105;
A flue 2; separator 3, flue gas inlet 301, feed back inlet 302, flue gas outlet 303;
primary fan 4, secondary fan 5, oxygenerator 6, induced draft fan 7, first inlet 701, first outlet 702, second outlet 703;
A compressor 8, a condenser 9, an air preheater 10, a gas separation chamber 11, a second inlet 1101, a third outlet 1102, and a fourth outlet 1103;
A plenum 12, a third inlet 1201, a fourth inlet 1202, a fifth outlet 1203;
drum 13, superheater 14, steam turbine 15, economizer 16, generator 17, electrochemical energy storage device 18, garbage crusher 19, silo 20, preheater 21, dust remover 22, fifth inlet 2201, ash discharge port 2202, exhaust port 2203.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
As shown in fig. 1-2, a garbage oxygen-enriched incineration system 100 according to an embodiment of the present invention includes a furnace 1, a flue 2, a primary fan 4, a secondary fan 5, and an oxygenerator 6. The bottom end of the hearth 1 is provided with a slag discharge port 101 and a primary air chamber 102, the hearth 1 is provided with a feed port 103 and a smoke discharge port 104, the feed port 103 is positioned above the primary air chamber 102, the hearth 1 is provided with a secondary air inlet 105, and the secondary air inlet 105 is positioned above the feed port 103. Flue 2 communicates with exhaust 104. The outlet of the primary air fan 4 is communicated with the primary air chamber 102, and the inlet of the primary air fan 4 is communicated with the flue 2. The outlet of the secondary air fan 5 communicates with a secondary air inlet 105. The outlet of the oxygenerator 6 communicates with the inlet of each of the primary fan 4 and the secondary fan 5.
When the garbage oxygen-enriched incineration system 100 of the embodiment of the invention is operated, garbage enters the hearth 1 from the feed inlet 103 to burn, and the smoke generated by burning is discharged to the flue 2. The primary fan 4 sends a part of flue gas discharged from the flue 2 into the primary air chamber 102 in combination with a part of oxygen generated by the oxygenerator 4, the primary air chamber 102 blows mixed gas into the hearth 1, the mixed gas flows upwards and blows to a dense-phase area of the hearth 1 to realize fluidization of garbage, and the secondary fan 5 sends another part of oxygen produced by the oxygenerator 4 into the hearth 1 through the secondary air inlet 105 to burn and support combustion for garbage in the dense-phase area.
According to the garbage oxygen-enriched incineration system 100 disclosed by the embodiment of the invention, a part of flue gas discharged from the flue 2 and a part of oxygen produced by the oxygenerator 6 are returned into the hearth 1 through the primary fan 4 and the primary air chamber 102, and a mixed air flow formed by the part of flue gas and the part of oxygen flows upwards in the hearth 1, so that the fluidization of garbage in a dense-phase area is realized, the garbage is in contact with the oxygen fully, and the part of oxygen can also ensure that the air flow drives the garbage to burn in the garbage fluidization process. Meanwhile, the garbage oxygen-enriched incineration system 100 sends the other part of oxygen produced by the oxygenerator 6 into the hearth 1 through the secondary air blower 5, so that the oxygen content in the hearth 1 is increased, and fluidized garbage can be fully combusted under the oxygen-enriched condition.
The garbage oxygen-enriched incineration system 100 of the embodiment of the invention burns garbage under the oxygen-enriched condition, and the oxygen-enriched combustion ensures that the garbage is fully combusted, and the temperature in the hearth 1 can be greatly increased, so that coal-adding mixed combustion is not needed, compared with the mixed combustion coal during the garbage incineration in the related art, the fuel cost is saved, the generation of pollutants such as NO x、SO2 and dioxin caused by coal combustion is avoided, meanwhile, the garbage combustion is fully performed, the concentration of the pollutants such as CO and dioxin generated by incomplete combustion is reduced, the emission of flue gas is reduced, and the part of the flue gas is recycled and is re-sent into the hearth 1 in combination with oxygen, and the condition that the nitrogen in the air is burnt by oxygen consumption at high temperature to generate NO x or the reaction occurs at high temperature in the related art is avoided, so that the generation rate of NO x is further reduced, and the emission of the flue gas is reduced.
Therefore, the garbage oxygen-enriched incineration system 100 provided by the embodiment of the invention can fully burn garbage, does not need to burn coal, saves cost, reduces the pollutant generation rate of CO, NO x、SO2, dioxin and the like, and realizes the reduction of pollutant emission in the combustion process.
In order to make the solution of the present application easier to understand, a detailed description will be given by taking fig. 1 to 2 as an example.
The garbage oxygen-enriched incineration system 100 of the embodiment of the invention comprises a hearth 1, a flue 2, a primary fan 4, a secondary fan 5, an oxygenerator 6, an induced draft fan 7, a condenser 9, a compressor 8, an air preheater 10, a gas separation chamber 11, a gas mixing chamber 12, a water cooled wall, a steam drum 13, a superheater 14, a steam turbine 15, an economizer 16, a generator 17, an electrochemical energy storage device 18, a garbage crusher 19, a stock bin 20, a preheater 21 and a dust remover 22.
The hearth 1 of the garbage oxygen-enriched incineration system 100 according to the embodiment of the present invention may be a hearth of a circulating fluidized bed.
The bottom end of the hearth 1 is provided with a slag discharge port 101 and a primary air chamber 102, the primary air chamber 102 is provided with an air distribution plate, and the gas discharged from the primary air chamber 102 is discharged into the hearth 1 through the air distribution plate. The furnace 1 is provided with a feed inlet 103 and a smoke outlet 104, the feed inlet 103 is positioned above the primary air chamber 102, the furnace 1 is provided with a secondary air inlet 105, and the secondary air inlet 105 is positioned above the feed inlet 103.
The bin 20 is in communication with an inlet of the garbage crusher 19, and an outlet of the garbage crusher 19 is in communication with the feed inlet 103. The garbage is put into the bin 20, the garbage is crushed by the garbage crusher 19, the particle size of the garbage is reduced, and the garbage incineration efficiency is improved.
Specifically, the particle size of the garbage after crushing by the garbage crusher 19 is smaller than 10mm.
The preheater 21 is arranged in the flue 2, the inlet of the preheater 21 is communicated with the outlet of the storage bin 20, and the outlet of the preheater 21 is communicated with the inlet of the garbage crusher 19. That is, the garbage in the bin 20 passes through the preheater 21 and then enters the garbage crusher 19 to be crushed. The preheater 21 preheats the garbage to be crushed by utilizing the heat of the high-temperature flue gas in the flue 2, reduces the humidity of the garbage, removes the moisture in the garbage, is convenient for crushing the garbage crusher 19, avoids adhesion to influence the crushing quality, and can also improve the temperature of the garbage, thereby further improving the garbage incineration efficiency.
The furnace 1 is provided with a separator 3, the separator 3 is provided with a flue gas inlet 301, a feed back opening 302 and a flue gas outlet 303, the flue gas outlet 104 of the furnace 1 is communicated with the flue gas inlet 301 of the separator 3, the feed back opening 302 is positioned at the bottom end of the separator 3, the feed back opening 302 is communicated with the furnace 1 through a pipeline, and a communication interface of the pipeline and the furnace 1 is positioned above the feed inlet 103 and below the secondary air inlet 105. The flue gas outlet 303 communicates with the inlet of the flue 2. The flue gas generated by the garbage incineration firstly enters the separator 3, the separator 3 separates out large particle objects in the flue gas, so that the large particle objects which are insufficiently combusted return to the hearth 1 through the pipeline to be continuously incinerated, and the flue gas from which the large particle objects are removed is discharged to the flue 2.
The dust remover 22 is provided with a fifth inlet 2201, an ash discharge port 2202 and an exhaust port 2203, wherein the fifth inlet 2201 is communicated with the outlet of the flue 2, and the exhaust port 2203 is communicated with the first inlet 701 of the induced draft fan 7. The dust remover 22 removes dust from the flue gas discharged from the flue 2, and solid matters such as fly ash and particulate matters in the flue gas are discharged from the ash discharge port 2202, so that the flue gas can be reused in the subsequent process. The flue gas after dust removal is discharged from the exhaust port 2203 and enters the induced draft fan 7 through the first inlet 701.
The induced draft fan 7 has a first inlet 701, a first outlet 702 and a second outlet 703, the first inlet 701 is communicated with the outlet of the flue 2, the first outlet 702 is communicated with the inlet of the primary air fan 4, and the outlet of the primary air fan 4 is communicated with the primary air chamber 102. The second outlet 703 of the induced draft fan 7 communicates with the inlet of the condenser 9. The induced draft fan 7 provides power for the flow of the flue gas, can guarantee that this part of flue gas enters into furnace 1 through primary fan 4, guarantees that another part of flue gas enters into condenser 9.
The induced draft fan 7 sends the part of the flue gas to the inlet of the primary fan 4, the primary fan 4 sends the part of the flue gas to the primary air chamber 102, and the part of the flue gas is upwards discharged to the dense-phase area of the hearth 1 through the air distribution plate, so that the garbage is fluidized.
The air preheater 10 is arranged in the flue 2, the air preheater 10 is provided with a first heat exchange channel and a second heat exchange channel, the inlet of the first heat exchange channel is communicated with the first outlet 702 of the induced draft fan 7, the outlet of the first heat exchange channel is communicated with the inlet of the primary air fan 4, the inlet of the second heat exchange channel is communicated with the outlet of the oxygen generator 6, the outlet of the second heat exchange channel is communicated with the inlet of each of the primary air fan 4 and the secondary air fan 5, and the outlet of the secondary air fan 5 is communicated with the secondary air inlet 105.
The air preheater 10 performs heat exchange with the high-temperature flue gas in the flue 2, so that the heating of the part of flue gas in the first heat exchange channel and the heating of the oxygen in the second heat exchange channel can be realized, the temperature of the part of flue gas and the oxygen fed into the hearth 1 are raised, the temperature in the hearth 1 is further raised, the garbage is further promoted to be fully combusted, and the amount of pollutants such as CO, dioxin and the like generated by incomplete combustion of the garbage is reduced.
The gas separation chamber 11 is provided with a second inlet 1101, a third outlet 1102 and a fourth outlet 1103, the second inlet 1101 is communicated with the outlet of the second heat exchange channel, and the fourth outlet 1103 is communicated with the inlet of the secondary fan 5. The air mixing chamber 12 is provided with a third inlet 1201, a fourth inlet 1202 and a fifth outlet 1203, wherein the third inlet 1201 is communicated with the third outlet 1102, the fourth inlet 1202 is communicated with the outlet of the first heat exchange channel, and the fifth outlet 1203 is communicated with the inlet of the primary fan 4. The gas-dividing chamber 11 divides the oxygen generated by the oxygenerator 6 into two parts, one part of the oxygen is mixed with the part of the flue gas by the gas-mixing chamber 12 and then is sent into the primary air chamber 102 by the primary air blower 4, then enters the hearth 1 by the air distribution plate, and the other part of the oxygen is sent to the secondary air inlet 105 by the secondary air blower 5 and enters the hearth 1. The other part of oxygen promotes the oxygen content of the dense-phase region and can promote the garbage to be fully combusted, so that the concentration of pollutants such as CO, dioxin and the like generated by incomplete combustion of the garbage is reduced.
The air mixing chamber 12 enables the part of oxygen and the part of flue gas to be fully mixed so as to ensure the uniformity of the distribution of the part of oxygen when the part of oxygen is discharged into the hearth 1 through the air distribution plate on the primary air chamber 102, and avoid the condition that the combustion is influenced due to low local oxygen content.
Specifically, the oxygen content in the gas mixing chamber 12 is 20% -30%, and the oxygen content in both the gas mixing chamber 12 and the gas separation chamber 12 is more than 30%.
The other part of flue gas enters the condenser 9, and the condenser 9 separates NO x、SO2、CO2 from dioxin according to the physical characteristics of NO x、SO2、CO2 and dioxin in the flue gas, so that NO x、SO2、CO2 and dioxin are respectively collected, and the aim of approaching zero emission can be fulfilled.
That is, the part of the flue gas generated by the garbage incineration (the flue gas after dust removal) is sent to the hearth 1 for recycling, and the other part of the flue gas generated by the garbage incineration (the flue gas after dust removal) is sent to the condenser 9 for condensation recovery, so that a chimney is not needed to be additionally arranged, and the purpose of near zero emission of gaseous pollutants is realized.
In order to improve the separation efficiency of NO x、SO2、CO2 and dioxin, a plurality of condensers 9 may be provided, and the condensers may be sequentially connected to each other, and the liquefaction and recovery may be sequentially performed from high to low by using the liquefaction temperatures of NO x、SO2、CO2 and dioxin.
In some possible implementations, 60% -80% of the flue gas exiting the exhaust ports 2203 of the dust separator 22 enters the furnace 1, 40% -20% enters the condenser 9, that is, the portion of the flue gas recycled is 60% -80% and the other portion of the flue gas recovered by condensation is 40-20%.
Preferably, the inlet of the compressor 8 is in communication with the second outlet 703 of the induced draft fan 7, and the outlet of the compressor 8 is in communication with the inlet of the condenser 9. The compressor 8 pressurizes the other part of flue gas, so that the other part of flue gas sent out by the induced draft fan 7 is changed into high-temperature and high-pressure gas from low-temperature and low-pressure gas, thereby improving the condensation efficiency of the condenser 9 on the other part of flue gas, and further improving the separation efficiency of NO x、SO2、CO2 and dioxin.
The water-cooled wall is arranged in the hearth 1, the steam drum 13 is communicated with the water-cooled wall, and the steam drum 13 is arranged above the hearth 1. The superheater 14 is arranged in the flue 2, and an inlet of the superheater 14 is communicated with the steam drum 13; the steam turbine 15 has a steam inlet, a steam outlet and a power take-off shaft, the steam inlet of the steam turbine 15 being in communication with the outlet of the superheater 14. The economizer 16 is arranged in the flue 2, an inlet of the economizer 16 is communicated with a steam outlet of the steam turbine 15, and an outlet of the economizer 16 is communicated with the steam drum 13.
The water in the water-cooled wall absorbs heat generated by the combustion of garbage in the hearth 1 to form high temperature and/or vaporization, the vaporized water vapor flows to the steam drum 13 and then enters the superheater 14, the water vapor exchanges heat with high-temperature flue gas in the flue 2 in the superheater 14 to further overheat and heat to form high-temperature water vapor, the high-temperature water vapor enters the steam turbine 15 from the steam inlet and drives the power output shaft of the steam turbine 15 to rotate, so that energy conversion and mechanical energy output are realized, and the water vapor after energy consumption is discharged from the steam outlet and enters the economizer 16, is heated by the high-temperature flue gas in the flue 2 again in the economizer 16 and then enters the steam drum 13.
The generator 17 is connected to the power take-off shaft of the steam turbine 15. The generator 17 is electrically connected with an electrochemical energy storage device 18, and the electrochemical energy storage device 18 is electrically connected with each of the oxygenerator 6, the compressor 8, the condenser 9, the induced draft fan 7, the primary fan 4, the secondary fan 5 and the garbage crusher 19. The power output shaft of the steam turbine 15 drives the rotor of the generator 17 to rotate, thereby realizing the conversion of mechanical energy into electric energy. The electrochemical energy storage device 18 can store the electric energy generated by the generator 17, the electrochemical energy storage device 18 can carry out peak shaving in real time, and the continuous power consumption requirements of the operation of the oxygenerator 6, the compressor 8, the condenser 9, the induced draft fan 7, the primary fan 4, the secondary fan 5 and the garbage crusher 19 in the garbage oxygen-enriched incineration system 100 can be ensured, so that the final purposes of high-efficiency treatment, waste treatment with waste and zero pollution emission are realized.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (10)
1. A refuse oxygen-enriched incineration system, characterized by comprising:
the furnace comprises a furnace chamber (1), wherein a slag discharge port (101) and a primary air chamber (102) are arranged at the bottom end of the furnace chamber (1), the furnace chamber (1) is provided with a feed port (103) and a smoke exhaust port (104), the feed port (103) is positioned above the primary air chamber (102), the furnace chamber (1) is provided with a secondary air inlet (105), and the secondary air inlet (105) is positioned above the feed port (103);
A flue (2), the flue (2) being in communication with the smoke outlet (104);
the outlet of the primary air fan (4) is communicated with the primary air chamber (102), and the inlet of the primary air fan (4) is communicated with the flue (2);
a secondary air fan (5), wherein an outlet of the secondary air fan (5) is communicated with the secondary air inlet (105); and
And an outlet of the oxygenerator (6) is communicated with an inlet of each of the primary fan (4) and the secondary fan (5).
2. The oxygen-enriched waste incineration system according to claim 1, further comprising:
An induced draft fan (7), wherein the induced draft fan (7) is provided with a first inlet (701), a first outlet (702) and a second outlet (703), the first inlet (701) is communicated with the outlet of the flue (2), and the first outlet (702) is communicated with the inlet of the primary fan (4); and
And the inlet of the condenser (9) is communicated with the second outlet (703) of the induced draft fan (7).
3. The system according to claim 2, further comprising a compressor (8), an inlet of the compressor (8) being in communication with the second outlet (703) of the induced draft fan (7), an outlet of the compressor (8) being in communication with an inlet of the condenser (9).
4. The garbage oxygen-enriched incineration system according to claim 2, further comprising an air preheater (10), the air preheater (10) being provided in the flue (2), the air preheater (10) having a first heat exchange channel and a second heat exchange channel, an inlet of the first heat exchange channel being in communication with a first outlet (702) of the induced draft fan (7), an outlet of the first heat exchange channel being in communication with an inlet of the primary fan (4), an inlet of the second heat exchange channel being in communication with an outlet of the oxygenerator (6), an outlet of the second heat exchange channel being in communication with an inlet of each of the primary fan (4) and the secondary fan (5).
5. The oxygen-enriched waste incineration system according to claim 4, further comprising:
The air separation chamber (11), the air separation chamber (11) is provided with a second inlet (1101), a third outlet (1102) and a fourth outlet (1103), the second inlet (1101) is communicated with the outlet of the second heat exchange channel, and the fourth outlet (1103) is communicated with the inlet of the secondary air fan (5); and
The air mixing chamber (12), air mixing chamber (12) is equipped with third import (1201), fourth import (1202) and fifth export (1203), third import (1201) with third export (1102) intercommunication, fourth import (1202) with the export intercommunication of first heat transfer passageway, fifth export (1203) with the import intercommunication of primary air fan (4).
6. A refuse-based oxygen-enriched incineration system according to claim 3, further comprising:
The water cooling wall is arranged in the hearth (1);
The steam drum (13) is arranged on the hearth (1), and the steam drum (13) is communicated with the water cooling wall;
A superheater (14), wherein the superheater (14) is arranged in the flue (2), and an inlet of the superheater (14) is communicated with the steam drum (13);
a steam turbine (15), the steam turbine (15) having a steam inlet, a steam outlet and a power take-off shaft, the steam inlet of the steam turbine (15) being in communication with the outlet of the superheater (14); and
The economizer (16) is arranged in the flue (2), an inlet of the economizer (16) is communicated with a steam outlet of the steam turbine (15), and an outlet of the economizer (16) is communicated with the steam drum (13).
7. The oxygen-enriched waste incineration system according to claim 6, further comprising:
-a generator (17), said generator (17) being connected to said power take-off shaft of said turbine (15); and
The electric generator (17) is electrically connected with the electrochemical energy storage device (18), and the electrochemical energy storage device (18) is electrically connected with each of the oxygenerator (6), the compressor (8), the condenser (9), the induced draft fan (7), the primary fan (4) and the secondary fan (5).
8. The oxygen-enriched waste incineration system according to claim 7, further comprising:
a garbage crusher (19), an outlet of the garbage crusher (19) is communicated with the feed inlet (103), and the garbage crusher (19) is electrically connected with the electrochemical energy storage device (18); and
-A silo (20), said silo (20) being in communication with the inlet of the garbage crusher (19).
9. The oxygen-enriched waste incineration system according to claim 8, further comprising a preheater (21), the preheater (21) being arranged in the flue (2), an inlet of the preheater (21) being in communication with an outlet of the silo (20), an outlet of the preheater (21) being in communication with an inlet of the waste crusher (19).
10. The oxygen-enriched waste incineration system according to claim 2, further comprising a dust remover (22), wherein the dust remover (22) has a fifth inlet (2201), an ash discharge port (2202) and an exhaust port (2203), the fifth inlet (2201) is communicated with the outlet of the flue (2), and the exhaust port (2203) is communicated with the first inlet (701) of the induced draft fan (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211443381.1A CN118049651A (en) | 2022-11-17 | 2022-11-17 | Oxygen-enriched garbage incineration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211443381.1A CN118049651A (en) | 2022-11-17 | 2022-11-17 | Oxygen-enriched garbage incineration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118049651A true CN118049651A (en) | 2024-05-17 |
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ID=91043533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211443381.1A Pending CN118049651A (en) | 2022-11-17 | 2022-11-17 | Oxygen-enriched garbage incineration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118049651A (en) |
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2022
- 2022-11-17 CN CN202211443381.1A patent/CN118049651A/en active Pending
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