CN217221914U - Waste incineration ash screening system - Google Patents
Waste incineration ash screening system Download PDFInfo
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- CN217221914U CN217221914U CN202220914463.9U CN202220914463U CN217221914U CN 217221914 U CN217221914 U CN 217221914U CN 202220914463 U CN202220914463 U CN 202220914463U CN 217221914 U CN217221914 U CN 217221914U
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- screening
- spiral
- incineration ash
- waste incineration
- deironing
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Abstract
The utility model discloses a msw incineration lime-ash screening system in the refuse treatment field, including material feeding unit, first deironing device, screening plant, breaker and second deironing device from the top down are arranged in the screening room vertically, material feeding unit is including setting up the hopper and the pay-off spiral of connection between hopper and screening plant feed inlet of waste incinerator slag notch below, the pay-off spiral is including lieing in the outdoor anterior segment spiral of screening and lieing in the indoor back end spiral of screening, first deironing device hangs and establishes in back end spiral top, screening plant screen underflow thing export is relative with the breaker feed inlet, the overflow thing export is connected with first discharging device, the breaker discharge gate is relative with second deironing device feed inlet, second deironing device discharge gate is connected with second discharging device. The utility model has the advantages of structural configuration is compact, screening process environmental protection, screening efficiency is high, screening effect is good.
Description
Technical Field
The utility model belongs to the technical field of the refuse treatment technique and specifically relates to a msw incineration lime-ash screening system is related to.
Background
Along with the development of national economy and the improvement of the living standard of people, the garbage output of China reaches hundreds of millions of tons, and the aims of solving the garbage problem are garbage volume reduction, garbage reduction, resource recycling and harmless treatment. The current method is incineration. The incineration ash accounts for about 20-30% of the weight of the garbage before incineration, and the part of the ash can be subjected to landfill treatment, or the incineration ash can be recycled, or can be used as a cement raw material, or can be used for manufacturing building materials. The municipal solid waste incineration ash generally comprises harmful substances such as heavy metals, and if the ash is directly buried or reused, secondary pollution can be caused, and the environment and human health are harmed, so that the ash of the municipal solid waste needs to be further screened. The garbage ash screening system in the prior art mostly has the problems of unreasonable structural layout, large occupied area, secondary pollution caused by fly ash dissipation in the treatment process and the like, and needs to be further improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a structural configuration is compact, screening process environmental protection, screening efficiency is high, screening effectual msw incineration lime-ash screening system.
The purpose of the utility model is realized like this: the utility model provides a msw incineration ash screening system, including material feeding unit, first deironing device, screening plant, breaker and second deironing device from the top down are arranged perpendicularly in the screening room, material feeding unit is including setting up the hopper and the feeding screw of connection between hopper and screening plant feed inlet in the waste incinerator slag notch below, feeding screw is including being located the outdoor anterior segment spiral of screening and being located the indoor back section spiral of screening, first deironing device hangs and establishes in back section spiral top, screening plant undersize export is relative with the breaker feed inlet, oversize thing export is connected with first discharging device, the breaker discharge gate is relative with second deironing device feed inlet, second deironing device discharge gate is connected with second discharging device. The utility model discloses a msw incineration lime-ash screening system, structural configuration is compact reasonable, and can high-efficiently sieve all kinds of lime-ash and retrieve the metal composition in the lime-ash, effectively avoids the dust secondary pollution in the working process simultaneously, and the feature of environmental protection is good.
As the utility model discloses a further improvement, first deironing device includes 2, and the magnetic field intensity of two first deironing devices is different, arranges in proper order at pay-off spiral direction of advance according to magnetic field intensity by weak order to strong to form the multistage letter sorting to heavy metallics, the recycle of being convenient for.
As a further improvement, the magnetic field intensity of the second iron removing device is larger than the magnetic field intensity of the first iron removing device, so that weak magnetic substances in ash slag are further sorted out and recycled.
As the utility model discloses a further improvement, the screening room is equipped with the dust removal pipeline, and the dust removal pipeline is connected with sack dust collector, collects the flying dust of dissipating in pay-off, screening and the crushing process, improves screening room operational environment.
As the utility model discloses a further improvement, screening plant adopts the shale shaker, and shale shaker screen cloth aperture is 120mm, forms the letter sorting to some bigger stones in the lime-ash, fragment of brick, ceramic chip and glass piece etc. can directly be used as road bed etc..
As a further improvement of the utility model, the front section spiral adopts a closed structure, thereby preventing fly ash dissipation in the feeding process from causing environmental pollution.
Drawings
Figure 1 is the schematic view of the waste incineration ash screening system of the utility model.
The device comprises a feeding device 1, a first iron removal device 2, a screening device 3, a crushing device 4, a second iron removal device 5, a screening chamber 6, a first discharging device 7, a second discharging device 8 and a dust removal pipeline 9.
Detailed Description
The screening system for the waste incineration ash slag shown in figure 1 comprises a feeding device 1, a first iron removing device 2, a screening device 3, a crushing device 4 and a second iron removing device 5. Wherein the screening device 3, the crushing device 4 and the second iron removing device 5 are vertically arranged in the screening chamber 6 from top to bottom.
The feeding device 1 comprises a hopper arranged below the slag outlet of the garbage incinerator and a feeding screw connected between the hopper and the feeding hole of the screening device 3. The feed screw comprises a front section screw located outside the classifying chamber 6 and a rear section screw located inside the classifying chamber 6. The front section of the spiral adopts a closed structure, so that the flying ash is prevented from dissipating to cause environmental pollution in the feeding process.
The first iron removing device 2 is suspended above the rear section spiral. First deironing device 2 includes 2, and the magnetic field intensity of two first deironing devices 2 is different, arranges in proper order at pay-off spiral direction of advance according to magnetic field intensity from weak to strong to form the multistage letter sorting to heavy metal material, be convenient for recycle.
The undersize outlet of the screening device 3 is opposite to the feeding hole of the crushing device 4, and the oversize outlet is connected with a first discharging device 7. The screening device 3 adopts a vibrating screen, the aperture of a screen mesh of the vibrating screen is 120mm, the sorting of some large stones, bricks, ceramic fragments, glass fragments and the like in ash slag is formed, and the ash slag is sent out through the first discharging device 7 to be directly used as a roadbed and the like.
The breaking device 4 is used for breaking some large molten blocks to form small-granularity slag. The discharge hole of the crushing device 4 is opposite to the feed hole of the second iron removing device 5. The discharge hole of the second iron removing device 5 is connected with a second discharging device 8. The magnetic field intensity of the second iron removing device 5 is larger than that of the first iron removing device 2, weak magnetic substances in small-particle-size slag are further sorted out and recycled. The rest of the small-particle-size slag is discharged through the second discharging device 8 and directly used as building materials and the like.
The screening chamber 6 is provided with a dust removal pipeline 9, the dust removal pipeline 9 is connected with a cloth bag dust removal device, fly ash dissipated in the feeding, screening and crushing processes is collected, and the working environment of the screening chamber 6 is improved.
To sum up, the msw incineration lime-ash screening system of this embodiment has advantages such as structural layout is compact, screening process environmental protection, screening efficiency is high, screening effect is good.
The present invention is not limited to the above embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some substitutions and modifications to some technical features without creative labor, and these substitutions and modifications are all within the protection scope of the present invention.
Claims (6)
1. The utility model provides a waste incineration ash screening system which characterized in that: including material feeding unit, first deironing device, screening plant, breaker and second deironing device from the top down are arranged in the screening room perpendicularly, material feeding unit is including setting up the hopper and the pay-off spiral of connection between hopper and the screening plant feed inlet in waste incinerator slag notch below, the pay-off spiral is including being located the outdoor anterior segment spiral of screening and being located the indoor back end spiral of screening, first deironing device hangs and establishes in back end spiral top, screening plant screen underflow export is relative with the breaker feed inlet, the screen overflow export is connected with first discharging device, the breaker discharge gate is relative with second deironing device feed inlet, second deironing device discharge gate is connected with second discharging device.
2. The waste incineration ash screening system of claim 1, wherein: the first iron removing device comprises 2 iron removing devices, wherein the magnetic field intensity of the first iron removing devices is different, and the first iron removing devices are sequentially arranged in the feeding spiral advancing direction from weak to strong according to the magnetic field intensity.
3. The waste incineration ash screening system according to claim 2, wherein: the magnetic field intensity of the second iron removing device is greater than that of the first iron removing device.
4. The waste incineration ash screening system according to claim 1, wherein: the screening chamber is provided with a dust removal pipeline, and the dust removal pipeline is connected with a cloth bag dust removal device.
5. A waste incineration ash screening system according to any one of claims 1 to 4, characterized in that: the screening device adopts a vibrating screen, and the aperture of the screen mesh of the vibrating screen is 120 mm.
6. The waste incineration ash screening system according to any one of claims 1 to 4, wherein: the front section of the spiral adopts a closed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220914463.9U CN217221914U (en) | 2022-04-20 | 2022-04-20 | Waste incineration ash screening system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220914463.9U CN217221914U (en) | 2022-04-20 | 2022-04-20 | Waste incineration ash screening system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217221914U true CN217221914U (en) | 2022-08-19 |
Family
ID=82819223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220914463.9U Active CN217221914U (en) | 2022-04-20 | 2022-04-20 | Waste incineration ash screening system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217221914U (en) |
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2022
- 2022-04-20 CN CN202220914463.9U patent/CN217221914U/en active Active
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