CN111112299B - Melting furnace for melting garbage fly ash - Google Patents
Melting furnace for melting garbage fly ash Download PDFInfo
- Publication number
- CN111112299B CN111112299B CN202010013227.5A CN202010013227A CN111112299B CN 111112299 B CN111112299 B CN 111112299B CN 202010013227 A CN202010013227 A CN 202010013227A CN 111112299 B CN111112299 B CN 111112299B
- Authority
- CN
- China
- Prior art keywords
- fly ash
- melting furnace
- melting
- air channel
- burner
- 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
- 238000002844 melting Methods 0.000 title claims abstract description 56
- 230000008018 melting Effects 0.000 title claims abstract description 56
- 239000010881 fly ash Substances 0.000 title claims abstract description 46
- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 12
- 239000002893 slag Substances 0.000 claims abstract description 20
- 239000000446 fuel Substances 0.000 claims abstract description 18
- 239000002699 waste material Substances 0.000 claims abstract description 9
- 239000002956 ash Substances 0.000 claims description 19
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 13
- 239000003546 flue gas Substances 0.000 claims description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
- 239000001301 oxygen Substances 0.000 claims description 10
- 229910052760 oxygen Inorganic materials 0.000 claims description 10
- 239000007921 spray Substances 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 abstract description 4
- 239000002910 solid waste Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 2
- 239000002920 hazardous waste Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 description 6
- 239000000843 powder Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 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 description 2
- 238000001723 curing Methods 0.000 description 2
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910018557 Si O Inorganic materials 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/20—Agglomeration, binding or encapsulation of solid waste
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B2101/00—Type of solid waste
- B09B2101/30—Incineration ashes
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention discloses a melting furnace for melting treatment of garbage fly ash and a matched burner thereof. The waste fly ash is converted into a glassy state by heating, melting and chilling. Fly ash is changed from hazardous waste into general solid waste. The device is characterized in that the fly ash melting furnace is provided with a specially designed burner, which can burn the tissue fuel on one hand and heat the fly ash to melt the fly ash; on the other hand, the fly ash can rotate, so that the molten fly ash is thrown towards the cylinder wall under the action of centrifugal force and flows on the cylinder wall, enters a slag pool through a slag discharging port to be chilled and is converted into glassy substances.
Description
Technical Field
The invention relates to a melting furnace for melting garbage fly ash and a matched burner, which are used for converting the garbage fly ash into a glassy state and converting dangerous waste into common solid waste, and belongs to the technical field of garbage treatment.
Background
The waste incineration can realize the treatment targets of volume reduction, reclamation and harmlessness of the waste, and is a preferred method for waste treatment. After the household garbage is burnt, incineration fly ash which is 2 to 5 percent of the mass of the original garbage can be generated and captured by a dust remover. The fly ash contains more volatile heavy metals such as mercury, lead, chromium and the like and highly toxic organic components such as dioxin and the like than the bottom slag. Relevant regulations in China prescribe that: the waste fly ash belongs to dangerous waste and must be specially treated. The methods commonly used at present are a cement curing method, a medicament treatment method and a fusion curing method. The melting solidification method uses combustion heat and electric heat of fuel, and under the condition of high temperature (1300 ℃), organic matters in fly ash are thermally decomposed, combusted and gasified, and inorganic matters are melted into vitreous slag. SiO in ash 2 In the melting process, a Si-O network structure is formed, the metal moved into the slag is solidified in the network to form extremely stable glass slag,the possibility of heavy metal dissolution is greatly reduced. After the fly ash is melted, the density is greatly increased, the volume reduction of the fly ash can be achieved by more than 2/3, and the possibility of releasing dioxin from the garbage fly ash is eliminated. And the slag can be used as roadbed material, thereby achieving the purpose of effective utilization.
Disclosure of Invention
The invention aims to provide equipment which can be used for melting and converting garbage fly ash into a glassy state so as to convert dangerous waste into common solid waste.
In order to achieve the above purpose, the technical scheme of the invention provides a melting furnace for melting garbage fly ash and a matched burner thereof, which comprises a burner, a melting furnace body, a slag pool and a smoke outlet, wherein the slag pool is arranged at the bottom of the melting furnace body.
Preferably, the burner is of a sleeve type structure at the joint with the melting furnace body, and comprises a fuel spray gun, a central wind channel, a rotary wind channel and an ash carrying wind channel from the center to the outside in sequence.
Preferably, the rotary air channel is provided with swirl blades for rotating the airflow at the position of entering the melting furnace body.
Preferably, the ash carrying wind channel is a single-side inlet spiral wind channel structure, and the spiral direction of the ash carrying wind channel is the same as the rotation direction of the swirl blades.
Preferably, the central wind channel and the rotary wind channel are respectively provided with a baffle plate for adjusting the flow.
Preferably, the flue gas outlet is provided with a temperature measuring point and an oxygen concentration measuring point.
The baffle plate can adjust the flow and the proportion of the central wind and the rotary wind; the cyclone blades can enable the airflow in the cyclone furnace to rotate; the air carrying fly ash tangentially enters an ash carrying wind channel and then enters a melting furnace in a rotating way; the burner can not only burn the tissue fuel, but also heat the fly ash to melt the fly ash; on the other hand, the fly ash can rotate, so that the molten fly ash is thrown towards the cylinder wall under the action of centrifugal force and flows on the cylinder wall, enters a slag pool through a slag discharging port to be chilled and is converted into glassy substances.
Drawings
FIG. 1 is a schematic view of the overall structure of a melting furnace system provided in an embodiment;
fig. 2 is a schematic structural view of a mating burner provided in an embodiment.
Fig. 3 is a top view of the structure shown in fig. 2.
Detailed Description
In order to make the invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Examples
The invention relates to a fly ash incineration melting furnace and a matched burner thereof, which concretely adopts the following scheme: as shown in figure 1, the fly ash melting furnace consists of a burner 1, a melting furnace body 2, a slag pool 3, a temperature measuring point 4 and an oxygen concentration measuring point 5. Wherein the burner is installed at the top of the fly ash melting furnace and has a structure as shown in fig. 2. The burner consists of a centrally located fuel lance 11 and three passages, a central wind passage 12, a rotary wind passage 13, and an ash carrying wind passage 14. The central wind channel provides air required for initial combustion of the injected fuel; the swirl blades 15 are arranged in the rotary air channel, so that air flow in the cyclone furnace can rotate, high-temperature smoke is sucked, and the combustion of fuel is stable; the fly ash laden air enters the ash laden air duct tangentially as shown in fig. 3 and then swirls into the melting furnace. The rotation direction of the ash carrying wind is the same as the rotation direction of the rotation wind. The baffle plates are arranged in the central wind channel and the rotary wind channel, so that the flow of the central wind and the rotary wind can be regulated.
The fly ash melting furnace body is a heat-insulating cylindrical container, the bottom of the fly ash melting furnace body is provided with a slag discharging port, and the side of the fly ash melting furnace body is provided with a flue gas outlet. The flue gas outlet is provided with a temperature measuring point 4 and an oxygen concentration measuring point 5.
When the system is in operation, the burner spray gun sprays fuel, which can be oil or gas, and the hearth is heated to a temperature (1300 ℃ below zero) higher than the ash melting point; the central wind provides the air needed for the initial combustion of the fuel; the rotary wind rotates the airflow in the furnace; the powder carrying wind carries fly ash powder into a hearth; the fly ash powder enters the hearth, is driven by the rotating airflow in the hearth to rotate, is thrown to the wall of the melting hearth under the action of centrifugal force, is melted, flows on the wall of the hearth and enters the slag pool. The high temperature flue gas exits through an outlet in the side of the melting furnace. The temperature measurement point of the flue gas outlet and the oxygen concentration measurement point can measure the temperature and the oxygen concentration of the exiting flue gas, so as to adjust the quantity of fuel injected by the burner and the quantity of air entering the melting furnace.
The fly ash melting furnace consists of a burner 1, a melting furnace body 2, a slag pool 3, a temperature measuring point 4 and an oxygen concentration measuring point 5. Wherein the burner is installed at the top of the fly ash melting furnace and has a structure as shown in fig. 2. The burner consists of a centrally located fuel lance 11 and three passages, a central wind passage 12, a rotary wind passage 13, and an ash carrying wind passage 14. The central wind channel provides air required for initial combustion of the injected fuel; the swirl blades 15 are arranged in the rotary air channel, so that the air flow entering the rotary air channel can rotate, and the air flow in the cyclone furnace can rotate; the ash carrying wind carrying fly ash enters the ash carrying wind channel tangentially as shown in fig. 3 and then enters the melting furnace in a rotating manner. The rotation direction of the ash carrying wind is the same as the rotation direction of the rotation wind. The baffle plates are arranged in the central wind channel and the rotary wind channel, so that the flow of the central wind and the rotary wind can be regulated.
The fly ash melting furnace body is a heat-insulating cylindrical container, the bottom of the fly ash melting furnace body is provided with a slag discharging port, and the side of the fly ash melting furnace body is provided with a flue gas outlet. The flue gas outlet is provided with a temperature measuring point 4 and an oxygen concentration measuring point 5.
When the system is in operation, the burner spray gun sprays fuel, which can be oil or gas, and the hearth is heated to a temperature (1300 ℃ below zero) higher than the ash melting point; the central wind provides the air needed for the initial combustion of the fuel; the rotary wind rotates the airflow in the furnace; the powder carrying wind carries fly ash powder into a hearth; the fly ash powder enters the hearth and is driven by the rotating airflow to rotate, and is thrown to the wall of the melting furnace under the action of centrifugal force to melt and flow on the wall of the melting furnace, and enters a slag pool through a slag discharge port to be chilled and converted into a glass state. The high temperature flue gas exits through an outlet in the side of the melting furnace. The temperature measuring point of the flue gas outlet, the oxygen concentration measuring point can measure the temperature and the oxygen concentration of the exiting flue gas, and the quantity of fuel injected by the burner and the quantity of air entering the melting furnace can be adjusted according to the measuring point data.
Claims (3)
1. The melting furnace for melting the garbage fly ash comprises a burner (1), a melting furnace body (2), a slag pool (3) and a flue gas outlet, wherein the slag pool (3) is arranged at the bottom of the melting furnace body (2), and is characterized in that the burner (1) is arranged at the top of the melting furnace body (2), the burner (1) comprises a fuel spray gun (11), a central air channel (12), a rotary air channel (13) and an ash carrying air channel (14), and the fuel spray gun (11), the central air channel (12), the rotary air channel (13) and the ash carrying air channel (14) are all communicated with the melting furnace body (2);
the burner (1) is of a sleeve type structure at the joint with the melting furnace body (2), and comprises a fuel spray gun (11), a central air channel (12), a rotary air channel (13) and an ash carrying air channel (14) from the center to the outside in sequence; the rotary air channel (13) enters the melting furnace body (2) and is provided with a cyclone blade (15) for enabling the air flow to rotate;
the ash carrying wind channel (14) is of a single-side inlet spiral wind channel structure, and the spiral direction of the ash carrying wind channel is the same as the rotation direction of the cyclone blades (15).
2. A melting furnace for melting waste fly ash according to claim 1, characterized in that the central air channel (12) and the rotary air channel (13) are provided with baffles for regulating the flow.
3. A melting furnace for melting waste fly ash according to claim 1, characterized in that the flue gas outlet is provided with a temperature measuring point (4) and an oxygen concentration measuring point (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010013227.5A CN111112299B (en) | 2020-01-07 | 2020-01-07 | Melting furnace for melting garbage fly ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010013227.5A CN111112299B (en) | 2020-01-07 | 2020-01-07 | Melting furnace for melting garbage fly ash |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111112299A CN111112299A (en) | 2020-05-08 |
| CN111112299B true CN111112299B (en) | 2023-10-31 |
Family
ID=70487069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010013227.5A Active CN111112299B (en) | 2020-01-07 | 2020-01-07 | Melting furnace for melting garbage fly ash |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111112299B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555843A (en) * | 2020-12-29 | 2021-03-26 | 上海电气集团股份有限公司 | Vortex combustion melting furnace |
| CN113399437B (en) * | 2021-07-05 | 2023-12-29 | 武汉武锅能源工程有限公司 | System and method for high-temperature melting vitrification utilization of distributed fly ash |
| CN113714246B (en) * | 2021-08-03 | 2022-12-23 | 武汉武锅能源工程有限公司 | Waste incineration fly ash treatment system and method |
| CN117415142B (en) * | 2023-11-06 | 2024-04-02 | 北京中科润宇环保科技股份有限公司 | Waste incineration fly ash melting furnace |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09210337A (en) * | 1996-02-08 | 1997-08-12 | Mitsui Eng & Shipbuild Co Ltd | Waste melting furnace |
| US5871343A (en) * | 1998-05-21 | 1999-02-16 | Air Products And Chemicals, Inc. | Method and apparatus for reducing NOx production during air-oxygen-fuel combustion |
| CN101564731A (en) * | 2009-05-20 | 2009-10-28 | 河南科技大学 | Innocent treatment device for waste incineration flying ash |
| CN102353046A (en) * | 2011-08-10 | 2012-02-15 | 大连经济技术开发区水国燃烧器有限公司 | Burner nozzle |
| CN202328277U (en) * | 2011-11-08 | 2012-07-11 | 东南大学 | Composite cyclone furnace combustion device for melting flying ash |
| CN203083355U (en) * | 2013-01-23 | 2013-07-24 | 上海开能新技术工程有限公司 | Flying ash fusion furnace |
| CN203116018U (en) * | 2012-12-12 | 2013-08-07 | 中国航天科技集团公司第六研究院第十一研究所 | Positive pressure baking oven burner nozzle applicable to multi-fuel wide-range variable working condition |
| CN203893178U (en) * | 2014-03-18 | 2014-10-22 | 徐州能达燃烧控制工程有限公司 | High and low calorific value double-fuel combined burner |
| CN105090960A (en) * | 2015-06-25 | 2015-11-25 | 上海齐耀热能工程有限公司 | Burner |
| CN106705057A (en) * | 2016-12-05 | 2017-05-24 | 北京神雾环境能源科技集团股份有限公司 | Heat-accumulating-type fly ash gasification smelting furnace |
| CN109945212A (en) * | 2017-12-20 | 2019-06-28 | 襄阳中和机电技术有限公司 | A kind of low-heating-value gas burner and combustion method |
| CN212597842U (en) * | 2020-01-07 | 2021-02-26 | 上海锅炉厂有限公司 | Melting furnace for melting garbage fly ash |
-
2020
- 2020-01-07 CN CN202010013227.5A patent/CN111112299B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09210337A (en) * | 1996-02-08 | 1997-08-12 | Mitsui Eng & Shipbuild Co Ltd | Waste melting furnace |
| US5871343A (en) * | 1998-05-21 | 1999-02-16 | Air Products And Chemicals, Inc. | Method and apparatus for reducing NOx production during air-oxygen-fuel combustion |
| CN101564731A (en) * | 2009-05-20 | 2009-10-28 | 河南科技大学 | Innocent treatment device for waste incineration flying ash |
| CN102353046A (en) * | 2011-08-10 | 2012-02-15 | 大连经济技术开发区水国燃烧器有限公司 | Burner nozzle |
| CN202328277U (en) * | 2011-11-08 | 2012-07-11 | 东南大学 | Composite cyclone furnace combustion device for melting flying ash |
| CN203116018U (en) * | 2012-12-12 | 2013-08-07 | 中国航天科技集团公司第六研究院第十一研究所 | Positive pressure baking oven burner nozzle applicable to multi-fuel wide-range variable working condition |
| CN203083355U (en) * | 2013-01-23 | 2013-07-24 | 上海开能新技术工程有限公司 | Flying ash fusion furnace |
| CN203893178U (en) * | 2014-03-18 | 2014-10-22 | 徐州能达燃烧控制工程有限公司 | High and low calorific value double-fuel combined burner |
| CN105090960A (en) * | 2015-06-25 | 2015-11-25 | 上海齐耀热能工程有限公司 | Burner |
| CN106705057A (en) * | 2016-12-05 | 2017-05-24 | 北京神雾环境能源科技集团股份有限公司 | Heat-accumulating-type fly ash gasification smelting furnace |
| CN109945212A (en) * | 2017-12-20 | 2019-06-28 | 襄阳中和机电技术有限公司 | A kind of low-heating-value gas burner and combustion method |
| CN212597842U (en) * | 2020-01-07 | 2021-02-26 | 上海锅炉厂有限公司 | Melting furnace for melting garbage fly ash |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111112299A (en) | 2020-05-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111112299B (en) | Melting furnace for melting garbage fly ash | |
| CN1759941B (en) | New type heating and fusing method and equipment for dealing with flying ash generated by burning garbage | |
| CN110345484B (en) | System for be used for rubbish flying ash and leachate to handle in coordination | |
| WO2022082889A1 (en) | Novel integrated system for online coupling of hazardous waste combustion and plasma melting | |
| CN102620299A (en) | Cyclone melting device and method for fly ash preheating | |
| CN101285577A (en) | Pneumatic medical waste burning process for rotary kiln and device therefor | |
| CN201059564Y (en) | Device used for gas controlled type medical waste-material burning of rotary kiln | |
| CN102221211A (en) | Melting solidification integrated method and system for incineration of hazardous wastes and incinerated fly ash | |
| CN2814161Y (en) | Fly ash melting furnace | |
| CN206094103U (en) | Compound plasma melting furnace of waste incineration fly ash | |
| WO2022105355A1 (en) | Waste incineration ash treatment system and method based on large coal-fired power station solid-state slag removal boiler | |
| CN1430016A (en) | Slag incinerator for treating hazardous wastes and medical garbage and process method | |
| CN112209616A (en) | High-temperature melting process and system of thermal plasma torch | |
| CN212597842U (en) | Melting furnace for melting garbage fly ash | |
| CN209263040U (en) | A kind of active carbon discharge rate automatic control system of waste incineration | |
| JPH10246416A (en) | Method and apparatus and thermally treating fly dust originating in grate-firing equipment | |
| CN106524178A (en) | Solid waste incineration cyclone furnace and incineration process for liquid slag of solid waste incineration cyclone furnace | |
| CN112146099A (en) | High-temperature melting and solidifying treatment system and method for coupling waste gasification fly ash with coal burning | |
| CN210485735U (en) | System for be used for rubbish flying dust and filtration liquid to deal with in coordination | |
| CN102506433A (en) | L-shaped combined high-temperature electronic garbage incinerator | |
| JP2515039B2 (en) | Coal fired boiler equipment | |
| JP3460605B2 (en) | Waste incineration and heat treatment furnace | |
| CN212253668U (en) | Roasting furnace for treating industrial waste salt | |
| CN100465513C (en) | Dangerous waste staff whirl wind gasified melting system | |
| JP3764634B2 (en) | Oxygen burner type melting furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |