CN220920379U - Fly ash and household garbage collaborative furnace returning heat treatment system - Google Patents
Fly ash and household garbage collaborative furnace returning heat treatment system Download PDFInfo
- Publication number
- CN220920379U CN220920379U CN202322680170.6U CN202322680170U CN220920379U CN 220920379 U CN220920379 U CN 220920379U CN 202322680170 U CN202322680170 U CN 202322680170U CN 220920379 U CN220920379 U CN 220920379U
- Authority
- CN
- China
- Prior art keywords
- fly ash
- household garbage
- heat treatment
- garbage
- treatment system
- 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
- 239000010881 fly ash Substances 0.000 title claims abstract description 106
- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 67
- 238000010438 heat treatment Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 230000002195 synergetic effect Effects 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 238000002156 mixing Methods 0.000 claims description 15
- 239000010791 domestic waste Substances 0.000 claims 1
- 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 25
- 238000005516 engineering process Methods 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 6
- 230000000711 cancerogenic effect Effects 0.000 abstract description 5
- 231100000315 carcinogenic Toxicity 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 10
- 239000002893 slag Substances 0.000 description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 9
- 239000003546 flue gas Substances 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 239000002245 particle Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 239000008187 granular material Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000004886 process control Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000003421 catalytic decomposition reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000006303 photolysis reaction Methods 0.000 description 1
- 230000015843 photosynthesis, light reaction Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The utility model relates to a heat treatment system for a synergistic return furnace of fly ash and household garbage, which comprises a fly ash storage, a mixed former and an incinerator, wherein the fly ash storage is connected with the mixed former through a pretreatment conveying system, the mixed former is also externally connected with a water pump, the output end of the mixed former is connected with a garbage pool, the household garbage is stored in the garbage pool, and the incinerator is used for obtaining and burning raw materials in the garbage pool through a grab bucket. The utility model discloses a heat treatment system for a synergistic return furnace of fly ash and household garbage, which adopts a fly ash heat synergistic treatment technology, and the fly ash from the incineration of the household garbage is subjected to pretreatment, is formed and then is returned to the incinerator for heat treatment so as to decompose a cancerogenic substance, namely dioxin, in the fly ash, so that the concentration of the cancerogenic substance is reduced to a harmless level, the secondary utilization of heat generated by the incineration of the household garbage can be realized, and the secondary utilization of heat generated by the incineration of the household garbage can be realized, namely the dioxin in the fly ash is effectively degraded.
Description
Technical Field
The utility model relates to the technical field of household garbage fly ash treatment, in particular to a heat treatment system for the cooperation of fly ash and household garbage in a furnace.
Background
The main modes of garbage disposal at present are as follows: landfill, incineration and composting. The garbage incineration power generation is an effective method for realizing garbage harmless, reduction and recycling, and has the advantages of large capacity reduction, high harmless degree, recoverable heat, small occupied area and the like. However, a great amount of flue gas is generated in the incineration process of the garbage, and the flue gas mainly comprises particulate matters, acid gases, dioxin, heavy metals and the like, so that the pollutants have great harm to human health, wherein the toxicity of the dioxin is the greatest, and the removal difficulty is the highest.
The control technology of dioxin in the waste incineration industry comprises two types of process control and end control. The generation mechanism of dioxin in the actual incineration process is complex, so that the process control and the terminal control technology are often combined in the actual engineering. For gaseous dioxin, the tail end control is mainly used for solidifying or reducing the emission of the dioxin through means of adsorption, catalytic decomposition, ultraviolet photolysis, plasma decomposition and the like. At present, activated carbon adsorption is generally adopted at home and abroad to control the emission of dioxin, but the activated carbon adsorption technology is utilized to only transfer the dioxin into the activated carbon from flue gas, the total amount of the dioxin is not reduced, and the activated carbon after adsorbing the dioxin is a part of fly ash and is also a main source of the dioxin in the fly ash.
At present, the mobility of heavy metals in the household garbage fly ash is reduced mainly by a stabilization technology, and the household garbage fly ash is directly sent to a landfill for landfill disposal after being stabilized, but dioxin in the household garbage fly ash cannot be properly disposed. Since the content of dioxin needs to be reduced to 50ng TEQ/kg before the fly ash is reused, a technology capable of rapidly and simply disposing dioxin in the fly ash is needed.
Disclosure of utility model
The utility model provides a heat treatment system for a synergistic return furnace of fly ash and household garbage, which aims to solve the problem that dioxin in the existing fly ash is not properly treated.
According to one aspect of the utility model, a heat treatment system for the cooperation of fly ash and household garbage is provided, and comprises a fly ash storage, a mixed shaper and an incinerator, wherein the fly ash storage is connected with the mixed shaper through a pretreatment conveying system, the mixed shaper is also externally connected with a water pump, the output end of the mixed shaper is connected with a garbage pool, the household garbage is stored in the garbage pool, and the incinerator is used for acquiring raw materials in the garbage pool through a grab bucket and burning the raw materials.
Preferably on the basis of the scheme, the fly ash storage is a fly ash bin.
On the basis of the scheme, the pretreatment conveying system is preferably a screw conveyor, a scraper conveying system or a pneumatic conveying system.
Preferably, the mixing former is a granulator.
Based on the scheme, preferably, a fly ash independent storage area can be arranged in the garbage pool.
The utility model discloses a heat treatment system for the cooperation of fly ash and household garbage, which adopts a fly ash heat cooperation treatment technology, and the household garbage incineration fly ash is subjected to pretreatment, molding and then is sent back to an incinerator for heat treatment so as to decompose a cancerogenic substance, namely dioxin, in the fly ash, so that the concentration of the cancerogenic substance is reduced to a harmless level, the heat generated by the household garbage incineration can be utilized for the second time, and the dioxin in the fly ash can be effectively degraded at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. In the drawings:
FIG. 1 is a schematic diagram of the heat treatment system of the present utility model for the cooperation of fly ash and household garbage;
FIG. 2 is a process flow diagram of the fly ash and household garbage collaborative furnace return heat treatment system of the utility model;
Reference numerals illustrate:
1a flue gas purifying system; 2 fly ash conveying system; 3 fly ash storage; 4, a fly ash pretreatment conveying system; 5a mixing former; 6, a fly ash conveying system after molding; 7, a garbage pool; 8 grab bucket; 9, an incinerator hopper; 10 an incinerator fire grate; 11 slag tapping machine; 12 incinerator.
Detailed Description
The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.
It should be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
For the sake of simplicity of the drawing, the parts relevant to the present utility model are shown only schematically in the figures, which do not represent the actual structure thereof as a product. Additionally, in order to simplify the drawing for ease of understanding, components having the same structure or function in some of the drawings are shown schematically with only one of them, or only one of them is labeled. Herein, "a" means not only "only this one" but also "more than one" case.
It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
In the embodiment shown in the drawings, indications of orientation (such as up, down, left, right, front and rear) are used to explain the structure and movement of the various components of the utility model are not absolute but relative. These descriptions are appropriate when the components are in the positions shown in the drawings. If the description of the location of these components changes, then the indication of these directions changes accordingly.
In addition, in the description of the present application, the terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will explain the specific embodiments of the present utility model with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the utility model, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.
Referring to fig. 1 in combination with fig. 2, a heat treatment system for a cooperation of fly ash and household garbage, according to the present utility model, includes a fly ash storage 3, a mixing former 5, and an incinerator 12.
The fly ash storage 3 is used for storing fly ash generated in the flue gas treatment process of the household garbage incineration plant, namely, after the flue gas generated in the household garbage incineration plant is purified by a semi-dry method, a dry method and bag dust removal in the flue gas purification system 1, the generated secondary pollutant fly ash is conveyed to the fly ash storage 3 by the fly ash conveying system 2 and is stored in the fly ash storage 3, the fly ash in the fly ash storage 3 contains a large amount of harmful substances such as dioxin, and the fly ash storage 3 can be a fly ash bin.
The mixing former 5 is used to uniformly mix fly ash with water or other binder-type additives and then granulate the mixture into particles of various shapes so that the particles do not leak from the gap of the incinerator grate 10. Here, the mixing former 5 may generally employ a granulator or the like for preparing fly ash into formed fly ash particles having a certain mechanical strength and a certain particle size, and the formed fly ash particles have various shapes including, but not limited to, spheres, ellipsoids, cylinders, irregular particles, and the like, and the particle size thereof ranges from about 5 to 10mm.
Specifically, the fly ash storage 3 is connected with the mixing former 5 under the action of the pretreatment conveying system 4, the mixing former 5 is also externally connected with a water pump, the output end of the mixing former 5 is connected with the garbage pool 7 through the formed fly ash conveying system 6, and household garbage is stored in the garbage pool 7.
The fly ash individual storage areas (sub-pools) may be provided in the waste pool 7. At this time, since the household garbage and the molded fly ash are stored separately, it is necessary to grasp the molded fly ash and the household garbage separately and put them into the incinerator 12 for incineration when the grab bucket grasps them.
If the waste tank 7 has a through structure, the molded fly ash is introduced into the waste tank 7 and mixed with the molded fly ash, and the incinerator 12 burns the mixed raw material in the waste tank 7 by means of a grab bucket.
It is to be noted that the fly ash generated by the flue gas cleaning system 1 is transported to the mixing former 5 through the fly ash storage 3 by the fly ash transport system 2 and the fly ash pretreatment transport system 4. Fly ash conveying system 2 and fly ash pretreatment conveying system 4 include various forms including, but not limited to, screw conveyors, scraper conveyors, pneumatic conveying systems, and the like. The incinerator 12 is a grate furnace and comprises an incinerator 12 hopper, an incinerator grate 10, a slag extractor 11 and the like.
In operation, the fly ash pretreatment conveying system 4 conveys the fly ash in the fly ash storage 3 into the mixing former 5, the fly ash is mixed with water and then granulated, and then the mixture is mixed with household garbage in the garbage pool 7 or is separately stored in the garbage pool 7 in a partition mode. It is put into the incinerator 12 through the grab bucket to be incinerated. In the incineration process, the formed fly ash is heated at a high temperature by the heat generated by the combustion of the household garbage, so that dioxin in the formed fly ash is decomposed in a fire grate high-temperature section, the formed fly ash after the dioxin is removed enters the slag extractor 11 along with slag, and is rapidly cooled in the slag extractor 11, so that the dioxin is prevented from being synthesized by the dioxin decomposition products which are partially adhered to the formed fly ash.
The utility model also provides a heat treatment method for the cooperation of fly ash and household garbage, which comprises the following steps:
Step 1, obtaining and storing fly ash generated by a household garbage incineration flue gas purification system 1 into a fly ash storage 3, and conveying the fly ash into a mixing former 5 through a fly ash pretreatment conveying system 4;
Step 2, in a mixing former 5, mixing and granulating fly ash and water to form granules;
Step 3, transferring the granules in the step 2 into a garbage pool 7, mixing with household garbage in the garbage pool 7, and transferring the mixed raw materials into an incinerator 12 through a grab bucket for combustion; or the granules and the household garbage in the step 2 are stored in the garbage pool 7, and are respectively conveyed to the hopper of the incinerator 12 through the large grab bucket and the small grab bucket, and then enter the incinerator 12.
In order to facilitate the fly ash formation, a binder may be added in step 2.
Furthermore, the utility model also comprises a step 4 of feeding the slag burnt in the step 3 into a slag extractor, adding cold water into the slag in the slag extractor, and rapidly cooling the slag.
Wherein in the step 2, the addition mass of water and binder is 5-30% of the mass of fly ash, 1-10% of the mass of fly ash, and the temperature on the fire grate in the incinerator 12 is above 400 ℃.
Preferably, the fly ash grab bucket of the utility model can be shared with household garbage or a small grab bucket which is specially used for grabbing the formed fly ash can be independently arranged. When the molded fly ash is managed separately in areas or in stacks, the molded fly ash is only about 3-4% of the amount of the living garbage, and a small grab bucket special for grabbing the molded fly ash is preferably arranged separately. If the molded fly ash is scattered on the surface of the household garbage, the molded fly ash grab bucket does not need to be independently configured and is shared with the household garbage grab bucket.
The utility model discloses a heat treatment system for a synergistic return furnace of fly ash and household garbage, which adopts a fly ash heat synergistic treatment technology, and the household garbage incineration fly ash is subjected to pretreatment, molding and then is returned to an incinerator 12 for heat treatment so as to decompose a cancerogenic substance, namely dioxin, in the fly ash, and reduce the concentration of the fly ash to a harmless level.
Finally, the method of the present utility model is only a preferred embodiment and is not intended to limit the scope of the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (5)
1. The utility model provides a fly ash and domestic waste are heat treatment system of furnace in coordination, its characterized in that includes fly ash memory, mixes former and burns the stove, fly ash memory through pretreatment conveying system with mix the former and link to each other, mix the former still external water pump, just the output of mixing the former is connected with the rubbish pond, the rubbish is stored in the rubbish pond, burn the stove and pass through the grab bucket in order to obtain raw materials in the rubbish pond and burn it.
2. The synergistic retorted heat treatment system for fly ash and household garbage as claimed in claim 1, wherein the fly ash storage is a fly ash bin.
3. A fly ash and household garbage collaborative furnace return heat treatment system according to claim 1, wherein the pretreatment conveying system is a screw conveyor, a scraper conveyor or a pneumatic conveying system.
4. A fly ash and household garbage collaborative retorted heat treatment system according to claim 1, wherein said hybrid former is a granulator.
5. A heat treatment system for the synergistic reaction of fly ash and household garbage as claimed in claim 1, wherein a separate storage area for fly ash is provided in the garbage pool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322680170.6U CN220920379U (en) | 2023-10-07 | 2023-10-07 | Fly ash and household garbage collaborative furnace returning heat treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322680170.6U CN220920379U (en) | 2023-10-07 | 2023-10-07 | Fly ash and household garbage collaborative furnace returning heat treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220920379U true CN220920379U (en) | 2024-05-10 |
Family
ID=90968120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322680170.6U Active CN220920379U (en) | 2023-10-07 | 2023-10-07 | Fly ash and household garbage collaborative furnace returning heat treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220920379U (en) |
-
2023
- 2023-10-07 CN CN202322680170.6U patent/CN220920379U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101395750B1 (en) | Dioxin treatability and treatability equipment structure | |
| CN203791331U (en) | System for synergistic treatment of municipal domestic waste in cement kiln | |
| CN105366896A (en) | Device and process for sludge gasification melting circular treatment | |
| CN106642152A (en) | Method for harmless disposal and comprehensive utilization by mixed incineration of sludge and garbage fly ash | |
| KR20210018176A (en) | Inflammables treatment method and treatment device | |
| CN220920379U (en) | Fly ash and household garbage collaborative furnace returning heat treatment system | |
| CN1133039C (en) | Method and system of controlling generation and diffusion of dioxin and heavy metal during garbage incineration | |
| CN211011385U (en) | Plasma gasification furnace and waste incineration power plant's innocent treatment system | |
| WO2012100618A1 (en) | A method of disposing waste gas using double-effect-reactor combined with cement production and a system thereof | |
| CN117324348A (en) | Fly ash and household garbage collaborative furnace returning heat treatment system and treatment method thereof | |
| JP4040035B2 (en) | Sewage sludge treatment method and apparatus | |
| CN203582743U (en) | Three-way kiln inlet treatment device for cement kiln household garbage | |
| CN110715297A (en) | Harmless treatment system and method for plasma gasification furnace and waste incineration power plant | |
| CN102641645B (en) | Removing system for sintering fuel gas dioxin and method thereof | |
| JP2006207909A (en) | Waste and contaminant recycling device and method | |
| CN210855851U (en) | Industrial waste is processing apparatus system in coordination based on cement kiln | |
| CN107473564B (en) | Harmless treatment method and system for domestic sludge | |
| TW202102317A (en) | Fuel-gasification treatment system and method for automobile shredder residue can produce waste-derived fuel by fuel-gasification treatment under an oxygen-deficient environment | |
| CN217109537U (en) | Solid waste circulation system suitable for high-ash-content fuel coal gasification power generation | |
| CN219965967U (en) | Equipment system for modifying garbage incineration fly ash as garbage cleaning incineration accelerator | |
| TWM585179U (en) | Gasification processing system for waste motor vehicle smashing residues | |
| CN2544191Y (en) | Incinerator treatment system for industrial dangerous waste | |
| JP3957232B2 (en) | Pretreatment equipment for reusing municipal waste incineration ash | |
| CN212430884U (en) | Fly ash plasma melting system | |
| CN113048480B (en) | Harmless treatment method for garbage in high-altitude low-oxygen area |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |