CN220942511U - Anaerobic hot melt fly ash treatment device - Google Patents
Anaerobic hot melt fly ash treatment device Download PDFInfo
- Publication number
- CN220942511U CN220942511U CN202322289733.9U CN202322289733U CN220942511U CN 220942511 U CN220942511 U CN 220942511U CN 202322289733 U CN202322289733 U CN 202322289733U CN 220942511 U CN220942511 U CN 220942511U
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- China
- Prior art keywords
- fly ash
- furnace body
- treatment device
- hot melt
- groove
- 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.)
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- 239000010881 fly ash Substances 0.000 title claims abstract description 54
- 239000012943 hotmelt Substances 0.000 title claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims abstract description 35
- 238000001816 cooling Methods 0.000 claims abstract description 17
- 239000000155 melt Substances 0.000 claims abstract description 14
- 230000006698 induction Effects 0.000 claims abstract description 10
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 239000011261 inert gas Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 5
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 19
- 230000008569 process Effects 0.000 abstract description 16
- 239000007787 solid Substances 0.000 abstract description 7
- 230000004888 barrier function Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000002920 hazardous waste Substances 0.000 abstract description 2
- 238000007711 solidification Methods 0.000 description 12
- 230000008023 solidification Effects 0.000 description 11
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 239000000126 substance Substances 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 3
- 239000011343 solid material Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 231100000481 chemical toxicant Toxicity 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The utility model discloses an anaerobic hot melt fly ash treatment device, which belongs to the technical field of hazardous waste treatment, and comprises a furnace body, wherein a heating mechanism is arranged in the furnace body; the heating mechanism includes: a cylinder; an induction heating coil sleeved outside the cylinder; the support body is arranged in the cylinder body, a groove is formed in the support body, the groove extends obliquely downwards, and a strip-shaped overflow table top is arranged at the bottom notch of the groove; and the heating rod is arranged in the groove. The oxygen-free hot melt fly ash treatment device provided by the utility model has the advantages that the fly ash becomes a molten state in the process of being continuously heated and flows downwards along the grooves. The bottom notch of the groove is provided with a strip-shaped overflow table top, the overflow table top forms a certain barrier to the flow of the melt, the flow time of the melt in the groove is prolonged, and fly ash is fully treated in an anaerobic atmosphere. The melt is discharged from the discharge port onto a water-cooled cooling plate to be cooled, and the temperature is further reduced in the continuous falling process to form vitrified solids, and the vitrified solids are discharged from the furnace body.
Description
Technical Field
The utility model relates to an anaerobic hot melt fly ash treatment device, and belongs to the technical field of hazardous waste treatment.
Background
The waste incineration power generation project plays a positive role in reducing waste, and the fly ash generated by incineration becomes a difficult problem in environmental protection work. Fly ash generated by a garbage incineration power plant contains dust particles, heavy metals, organic substances, soluble salts and the like, and needs to be reasonably treated, otherwise, the fly ash is harmful to the environment and human health. The traditional fly ash treatment methods include landfill, chemical treatment, solidification stabilization and the like, wherein the solidification stabilization method is to treat the fly ash to form hard solids, including cement solidification, asphalt solidification, melt solidification and the like. The melting and solidification process is to melt the fly ash at high temperature and then cool and solidify, and in the process, part of toxic chemical substances contained in the fly ash are decomposed at high temperature, and the rest components are solidified in the formed glass body to reach a stable state.
At present, when the fly ash is subjected to a melting and solidification treatment, the fly ash is introduced into a heating furnace, and then heated at a high temperature to melt the fly ash, and then the melt is cooled to form a vitrified solid. After each furnace of vitrified solid material is formed, the fly ash treatment of the next furnace can be performed after the vitrified solid material is discharged, so that the conventional fly ash treatment method cannot realize continuous operation. In addition, the vitrified solid material formed in the furnace body is large in caking, and is difficult to remove from the furnace body, and crushing treatment is required, so that the workload is increased. In addition, dioxin harmful gas is generated in the conventional melt-solidification treatment process, and environmental pollution is caused.
The foregoing is not necessarily a prior art, and falls within the technical scope of the inventors.
Disclosure of utility model
The utility model aims to solve the problems in the prior art, and provides the anaerobic hot melt fly ash treatment device, wherein the melting, solidification and discharge processes of the fly ash are continuously carried out, the operation of stopping a furnace is not needed, and the fly ash treatment efficiency is improved.
The utility model realizes the aim by adopting the following technical scheme:
An anaerobic hot melt fly ash treatment device comprises a furnace body, wherein a heating mechanism is arranged in the furnace body;
The upper part of the furnace body is connected with a feeding pipe, and the bottom of the furnace body is provided with a discharge port;
The heating mechanism includes:
A cylinder arranged in the furnace body;
The induction heating coil is sleeved outside the cylinder body and is connected with a high-frequency power supply;
The support body is arranged in the cylinder body, a groove is formed in the support body, the groove extends obliquely downwards, and a strip-shaped overflow table top is arranged at the bottom notch of the groove;
And the heating rod is arranged in the groove.
Optionally, still be provided with the water-cooling board in the furnace body, the water-cooling board sets up in the below of barrel and slope downwardly extending, and the melt that flows down through overflow mesa falls onto the water-cooling board.
Optionally, the furnace body is provided with an inert gas inlet pipe in a communicating manner.
Optionally, the feeding pipe is connected with the bin through a feeding auger.
Optionally, the cylinder and the support body are made of heat-insulating and temperature-resistant ceramics.
Optionally, the heating rod is made of tungsten or molybdenum or other high-temperature resistant materials.
Optionally, the anaerobic hot melt fly ash treatment device provided by the utility model further comprises a transfer trolley, wherein the transfer trolley is used for transferring materials discharged from a discharge port.
Optionally, the upper part of the furnace body is erected on a rack.
The beneficial effects of the application include, but are not limited to:
The anaerobic hot melt fly ash treatment device provided by the utility model has the advantages of simple integral structure, good operation stability, sufficient melting and solidification of the fly ash and high treatment efficiency, and is specifically characterized in that: the induction heating coil generates current in the heating rod under the action of the high-frequency power supply to heat the fly ash, and the fly ash becomes a molten state and flows downwards along the grooves in the process of being continuously heated. The bottom notch of the groove is provided with a strip-shaped overflow table top, the overflow table top forms a certain barrier to the flow of the melt, the flow time of the melt in the groove is prolonged, and harmful substances in the fly ash are fully heated to form the melt. The melt is discharged from the discharge hole and falls onto the water-cooling plate to be cooled, the temperature of the melt is further reduced in the continuous falling process after passing through the water-cooling plate to form vitrified solid, and the vitrified solid is discharged from the furnace body, so that the reduction treatment of the fly ash is realized, and the problem of fly ash landfill is solved.
In the process, the melting and solidification of the fly ash and the discharge process are continuously carried out, the operation of stopping the furnace is not needed, and the fly ash treatment efficiency is improved. In addition, inert gas is introduced into the furnace body in the fly ash treatment process, so that an oxygen-free environment is formed in the furnace body, dioxin is avoided in the fly ash high-temperature heat treatment process, and the harm to the environment is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a schematic view of an anaerobic hot melt fly ash treatment device according to one embodiment of the present utility model;
FIG. 2 is a schematic view of a support and a heating rod;
FIG. 3 is a schematic view of an anaerobic hot melt fly ash treatment device provided in another embodiment of the utility model;
in the figure, 100, furnace body; 110. a feed pipe; 111. a storage bin; 120. a discharge port; 210. a cylinder; 220. an induction heating coil; 230. a high frequency power supply; 240. a support body; 241. a groove; 242. an overflow table top; 250. a heating rod; 300. a cooling plate; 310. circulating cooling water; 400. an inert gas inlet pipe; 500. a transfer vehicle; 600. a rack.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present utility model will be described in detail below with reference to the following detailed description and the accompanying drawings.
It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but that the present utility model may be practiced otherwise than as described herein. Therefore, the scope of the utility model is not limited by the specific embodiments disclosed below.
As shown in fig. 1 to 3, the anaerobic hot melt fly ash treatment device provided by the utility model comprises a furnace body 100, and a heating mechanism is arranged in the furnace body 100. The upper part of the furnace body 100 is connected with a feed pipe 110, and the bottom of the furnace body 100 is provided with a discharge port 120.
The heating mechanism includes:
A cylinder 210 disposed in the furnace body 100;
An induction heating coil 220 sleeved outside the cylinder 210, the induction heating coil 220 being connected to a high-frequency power supply 230;
The support body 240 is arranged in the cylinder 210, the support body 240 is provided with a groove 241, the groove 241 extends downwards in an inclined way, and the bottom notch of the groove 241 is provided with a strip-shaped overflow table 242;
And a heating rod 250, the heating rod 250 being disposed in the groove 241. Typically, the bottom of the heating rod 250 is supported on the overflow table 242.
As shown in fig. 2, the shape of the support body is not limited, and one side surface thereof is generally disposed obliquely downward, and the groove is opened on the inclined surface.
In operation, the high frequency power supply 230 connected to the induction heating coil 220 is activated, a varying magnetic field is generated in the induction heating coil 220, and a current is generated in the heating rod 250 in the induction heating coil 220 to generate heat. Fly ash is introduced into the furnace body 100 from the feed pipe 110, falls into the recess 241, and is heated by the heating rod 250 at high temperature. The fly ash becomes molten in the process of being continuously heated and flows down along the grooves 241. The bottom notch of the groove 241 is provided with an overflow table 242, and the overflow table 242 forms a certain barrier to the flow of the melt, so that the flow time of the melt in the groove 241 is prolonged.
The oxygen-free hot melt fly ash treatment device provided by the utility model is characterized in that a water cooling plate 300 is further arranged in a furnace body 100, the water cooling plate 300 is arranged below a cylinder 210 and extends obliquely downwards, the upper plate surface of the water cooling plate 300 faces towards an overflow table surface, the lower end of the water cooling plate 300 faces towards a discharge hole, and circulating cooling water 310 is introduced into the water cooling plate.
The melt flowing down through the overflow table falls onto the water-cooled cooling plate 300 to be cooled, and the temperature is further lowered during the continuing falling to form vitrified solids to be discharged from the furnace body 100. Therefore, the melting and solidification of the fly ash and the discharge process are continuously carried out, the operation of stopping the furnace is not needed, and the fly ash treatment efficiency is improved.
According to the anaerobic hot melt fly ash treatment device provided by the utility model, the furnace body 100 is provided with the inert gas inlet pipe 400 in a communicating way, the inert gas inlet pipe 400 is connected with the gas storage tank, and the inert gas adopts argon. In the treatment process, inert gas is introduced into the furnace body 100, so that an oxygen-free environment is formed in the furnace body 100, and dioxin is avoided in the fly ash high-temperature heat treatment process.
The inlet pipe 110 is connected with a feed bin 111 through a feed auger, and a valve is arranged on the inlet pipe 110.
Specifically, the furnace body 100 can be made of stainless steel materials, and the outer side is coated with heat insulation materials; the cylinder 210 and the support 240 are made of ceramics, and can be made of heat-insulating and temperature-resistant ceramics, so that the heat-insulating and temperature-resistant ceramic has the advantages of high temperature resistance and good heat storage performance, and reduces heat loss.
The heating rod 250 is made of a high temperature resistant material such as tungsten or molybdenum.
As shown in fig. 3, the anaerobic hot melt fly ash treatment device provided by the utility model further comprises a transfer vehicle 500, wherein the transfer vehicle is used for transferring materials discharged from the discharge port 110. Further, the upper part of the furnace body 100 is generally erected on the rack 600, and the lower part is suspended, so that the material can be conveniently contained in the transfer trolley.
The furnace body is usually provided with an upper cylinder section and a lower cone section which are connected together, the cylinder body is arranged on the cylinder section, and the water-cooling plate is arranged on the cone section. A supporting plate for supporting the cylinder body is arranged in the furnace body, and a notch is formed in the supporting plate at a position corresponding to the notch at the bottom of the groove for the molten material to smoothly fall down.
In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements 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 utility model.
In the present utility model, 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; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
The above embodiments are not to be taken as limiting the scope of the utility model, and any alternatives or modifications to the embodiments of the utility model will be apparent to those skilled in the art and fall within the scope of the utility model.
The present utility model is not described in detail in the present application, and is well known to those skilled in the art.
Claims (8)
1. The anaerobic hot melt fly ash treatment device is characterized by comprising a furnace body, wherein a heating mechanism is arranged in the furnace body;
The upper part of the furnace body is connected with a feeding pipe, and the bottom of the furnace body is provided with a discharge port;
The heating mechanism includes:
A cylinder arranged in the furnace body;
The induction heating coil is sleeved outside the cylinder body and is connected with a high-frequency power supply;
The support body is arranged in the cylinder body, a groove is formed in the support body, the groove extends obliquely downwards, and a strip-shaped overflow table top is arranged at the bottom notch of the groove;
And the heating rod is arranged in the groove.
2. The oxygen-free hot melt fly ash treatment device according to claim 1, wherein a water cooling plate is further arranged in the furnace body, the water cooling plate is arranged below the cylinder body and extends obliquely downwards, and the melt flowing down through the overflow table surface falls onto the water cooling plate.
3. The oxygen-free hot melt fly ash treatment device according to claim 1, wherein the furnace body is provided with an inert gas inlet pipe in communication.
4. The oxygen-free hot melt fly ash treatment device of claim 1, wherein the feed pipe is connected to the silo through a feed auger.
5. The oxygen-free hot melt fly ash treatment device according to claim 1, wherein the cylinder and the support body are made of heat-insulating and temperature-resistant ceramics.
6. The oxygen-free hot melt fly ash treatment device of claim 1, wherein the heating rod is made of high temperature resistant material tungsten or molybdenum.
7. The oxygen-free hot melt fly ash treatment device of claim 1, further comprising a transfer vehicle for transferring the material discharged from the discharge port.
8. The oxygen-free hot melt fly ash treatment device according to claim 1, wherein the upper part of the furnace body is erected on a rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322289733.9U CN220942511U (en) | 2023-08-24 | 2023-08-24 | Anaerobic hot melt fly ash treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322289733.9U CN220942511U (en) | 2023-08-24 | 2023-08-24 | Anaerobic hot melt fly ash treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220942511U true CN220942511U (en) | 2024-05-14 |
Family
ID=91022107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322289733.9U Active CN220942511U (en) | 2023-08-24 | 2023-08-24 | Anaerobic hot melt fly ash treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220942511U (en) |
-
2023
- 2023-08-24 CN CN202322289733.9U patent/CN220942511U/en active Active
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| GR01 | Patent grant |