CN211436512U - Steel slag treatment production line - Google Patents
Steel slag treatment production line Download PDFInfo
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- CN211436512U CN211436512U CN201921648237.5U CN201921648237U CN211436512U CN 211436512 U CN211436512 U CN 211436512U CN 201921648237 U CN201921648237 U CN 201921648237U CN 211436512 U CN211436512 U CN 211436512U
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- steel slag
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- 239000002893 slag Substances 0.000 title claims abstract description 60
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 title claims description 51
- 239000010959 steel Substances 0.000 title claims description 51
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 96
- 229910052742 iron Inorganic materials 0.000 claims abstract description 48
- 238000011084 recovery Methods 0.000 claims abstract description 13
- 238000012216 screening Methods 0.000 claims abstract description 10
- 239000011449 brick Substances 0.000 claims description 15
- 238000004064 recycling Methods 0.000 claims description 2
- 238000007885 magnetic separation Methods 0.000 abstract description 11
- 239000000203 mixture Substances 0.000 abstract description 6
- 239000002245 particle Substances 0.000 description 23
- 238000007873 sieving Methods 0.000 description 21
- 235000019580 granularity Nutrition 0.000 description 12
- 230000000694 effects Effects 0.000 description 4
- 230000005389 magnetism Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
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Abstract
The utility model discloses a production line is handled to slag utilizes jaw breaker and vertical breaker to carry out the secondary crushing to slag, effectively separates out the iron grain or the iron plate of big granularity, utilizes double-deck screening machine to sieve, separates out slag medium granularity and is less than or equal to 5mm and >1 mm's lime-ash and iron grain mixture, reduces the load of magnetic drum selection iron machine, effectively improves the magnetic separation efficiency of magnetic drum selection iron machine to the effectual rate of recovery that improves metallics such as iron grain, iron plate.
Description
Technical Field
The utility model relates to a slag processing technology field particularly, relates to a slag processing production line.
Background
In the smelting process of steel, steel slag is often generated, the steel slag contains iron blocks or iron particles, the iron blocks or the iron particles can be recycled and then re-melted in a furnace, and the residual ash can be used as a brick making raw material for recycling; in the process of separating and treating iron particles and ash residues, magnetic separation is carried out by using a common magnetic separation device, and before the magnetic separation, the magnetic separation effect is influenced by the granularity of steel slag, so that the magnetic separation efficiency is low frequently in the magnetic separation process, the magnetic separation is incomplete, most iron particles cannot be separated, and the recovery effect is poor.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a steel slag processing method and a steel slag processing production line which can efficiently improve the recovery rate.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the steel slag treatment production line sequentially comprises a feeding machine, a first conveying belt, a jaw crusher, a second conveying belt, a vertical crusher, a third conveying belt, a double-layer screening machine, a fourth conveying belt and a magnetic roller iron separator along the conveying direction of steel slag, wherein the double-layer screening machine and the magnetic roller iron separator are connected with a recovery device.
As an improvement of the technical scheme, the double-layer sieving machine is a linear vibration double-layer sieving machine and comprises an upper-layer sieving net and a middle-layer sieving net which are distributed up and down, the aperture of the upper-layer sieving net is 5mm multiplied by 5mm, and the aperture of the middle-layer sieving net is 1mm multiplied by 1 mm.
As a further improvement of the technical scheme, a vibrating screen plate is arranged below the middle layer screen, and a plurality of vibrating balls are arranged between the vibrating screen plate and the middle layer screen; the aperture of the vibrating screen plate is larger than that of the middle layer screen mesh.
Furthermore, an air heater is arranged at the feed inlet of the vertical crusher, and an air port of the air heater faces towards the interior of the feed inlet.
The system further comprises a brick making bin, and a fifth conveying belt is arranged between the double-layer sieving machine and the brick making bin to convey steel slag; and a sixth conveying belt is arranged between the magnetic roller iron separator and the brick making bin to convey steel slag.
Further, the recovery device comprises a chute and a ton bag.
The utility model has the advantages that: a steel slag treatment production line utilizes a jaw crusher and a vertical crusher to carry out secondary crushing on steel slag, effectively separates out iron particles or iron blocks with large particle sizes, utilizes a double-layer sieving machine to carry out sieving, separates out ash slag and iron particle mixtures with particle sizes of less than or equal to 5mm and larger than 1mm in the steel slag, reduces the load of a magnetic roller iron separator, effectively improves the magnetic separation efficiency of the magnetic roller iron separator, and further effectively improves the recovery rate of metal substances such as the iron particles, the iron blocks and the like.
Drawings
The following is further described with reference to the accompanying drawings and examples.
FIG. 1 is a schematic view of the structure and arrangement of the steel slag treatment line of the present invention;
FIG. 2 is a schematic diagram of the distribution of the screens in each layer of the double-layer sieving machine of the present invention;
fig. 3 is a schematic structural diagram of the vertical crusher of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
Referring to fig. 1, a steel slag processing production line sequentially comprises a feeder 100, a first conveyer belt 910, a jaw crusher 200, a second conveyer belt 920, a vertical crusher 300, a third conveyer belt 930, a double-layer sieving machine 400, a fourth conveyer belt 940 and a magnetic drum iron separator 500 along a steel slag transportation direction, wherein the double-layer sieving machine 400 and the magnetic drum iron separator 500 are connected with a recovery device 700;
in this embodiment, the steel slag is mainly a mixture of ash and iron particles or iron blocks, the steel slag is fed into the feeding machine 100, the feeding machine 100 transports the steel slag to the jaw crusher 200 through the first conveyer belt 910 to perform primary crushing, the steel slag is crushed to a particle size of less than 3mm, the iron particles or iron blocks in the steel slag cannot be crushed, the iron particles with a particle size of greater than 5mm can be primarily separated from the ash after the primary crushing, the steel slag is transported to the vertical crusher 300 through the second conveyer belt 920 to perform secondary crushing after the primary crushing, and the vertical crusher 300 further crushes the steel slag to a particle size of less than 1 mm; the steel slag after the secondary crushing is conveyed to a double-layer sieving machine 400 through a third conveyer belt 930 for sieving, the steel slag after the secondary crushing is basically divided into three ranges of granularity, one is iron grains or iron blocks with the granularity larger than 5mm, the second is a mixture of small iron grains with the granularity smaller than or equal to 5mm and larger than 1mm and ash slag, the third is ash slag with the granularity smaller than or equal to 1mm, the double-layer sieving machine 400 separates the steel slag with the three granularities, the iron grains or the iron blocks with the granularity larger than 5mm after the sieving are directly conveyed to a recovery device 700, and the ash slag with the granularity smaller than or equal to 1mm is recovered as brick making materials for later use; after screening, conveying the mixture of small iron particles with the granularity of less than or equal to 5mm and more than 1mm and ash residues to a magnetic roller iron separator 500 through a fourth conveyor, separating and conveying the steel slag with magnetism to a recovery device 700 by the magnetic roller iron separator 500, and taking the steel slag without magnetism as a brick making material for later use; the steel slag in the recovery device 700 is returned to the furnace for re-melting and utilization; the steel slag is sufficiently crushed and magnetically separated by utilizing the matching of the jaw crusher 200, the vertical crusher 300, the double-layer sieving machine 400 and the magnetic roller iron separator 500, so that the recovery rate of metal in the steel slag is greatly improved.
Referring to fig. 1 and 2, specifically, the double-layer sieving machine 400 is a linear vibration double-layer sieving machine 400, and comprises an upper-layer sieve 410 and a middle-layer sieve 420 which are distributed up and down, wherein the pore diameter of the upper-layer sieve 410 is 5mm × 5mm, and the pore diameter of the middle-layer sieve 420 is 1mm × 1mm, so that iron particles or iron blocks with the particle size larger than 5mm, a mixture of small iron particles and ash with the particle size smaller than or equal to 5mm and larger than 1mm, and ash with the particle size smaller than or equal to 1mm are separated.
Referring to fig. 2, further, a vibrating screen plate 430 is arranged below the middle screen 420, and a plurality of vibrating balls 440 are arranged between the vibrating screen plate 430 and the middle screen 420; the aperture of the vibrating screen plate 430 is larger than that of the middle screen plate 420, when the middle screen plate 420 screens ash with the granularity less than or equal to 1mm, the screen holes of the middle screen plate 420 are easy to be blocked, the vibrating ball 440 is preferably an elastic ball, the elastic ball is vibrated by the vibrating screen plate 430, the vibrating ball 440 bounces between the middle screen plate 420 and the vibrating screen plate 430, the vibrating ball 440 directly collides with the middle screen plate 420, the vibration intensity of the middle screen plate 420 is increased, steel slag blocked in the screen holes on the middle screen plate 420 is strongly vibrated to be separated from the screen holes, and therefore the ash with the granularity less than or equal to 1mm is smoothly screened.
Referring to fig. 3, further, the air heater 310 is arranged at the feed inlet 320 of the vertical crusher 300, an air port of the air heater 310 faces the interior of the feed inlet 320, after primary crushing, ash residues in the steel slag become powder, and in a humid environment, the steel slag is easy to be wetted and then bonded into blocks, which can seriously affect the further crushing effect of the vertical crusher 300, and the air heater 310 is used for heating at the feed inlet 320 of the vertical crusher 300, so that the drying degree of the steel slag entering the vertical crusher 300 is improved, and the secondary crushing effect of the vertical crusher 300 is ensured.
Referring to fig. 1, the brick making system specifically comprises a brick making bin 600, a fifth conveying belt 950 is arranged between the double-layer sieving machine 400 and the brick making bin 600 to convey steel slag, and ash slag with the particle size of less than or equal to 1mm after being sieved is conveyed to the brick making bin 600 from the double-layer sieving machine 400 by the fifth conveying belt 950; a sixth conveying belt 960 is arranged between the magnetic roller iron separator 500 and the brick making bin 600 to convey the steel slag, and the steel slag without magnetism after magnetic separation is conveyed to the brick making bin 600 for later use by the sixth conveying belt 960.
Specifically, the recovery device 700 comprises a chute 710 and a ton bag 720, and the chute 710 is used for transporting iron particles or iron blocks with the granularity larger than 5mm after screening or magnetic steel slag with magnetism after magnetic separation to the ton bag 720 to be re-melted for reuse.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (6)
1. A steel slag treatment production line is characterized in that: the steel slag separator sequentially comprises a feeding machine (100), a first conveying belt (910), a jaw crusher (200), a second conveying belt (920), a vertical crusher (300), a third conveying belt (930), a double-layer screening machine (400), a fourth conveying belt (940) and a magnetic drum iron separator (500) along the conveying direction of steel slag, wherein the double-layer screening machine (400) and the magnetic drum iron separator (500) are connected with a recovery device (700).
2. The steel slag processing production line according to claim 1, characterized in that: the double-layer screening machine (400) is a linear vibration double-layer screening machine (400) and comprises an upper-layer screen (410) and a middle-layer screen (420) which are vertically distributed, the aperture of the upper-layer screen (410) is 5mm multiplied by 5mm, and the aperture of the middle-layer screen (420) is 1mm multiplied by 1 mm.
3. The steel slag processing production line according to claim 2, characterized in that: a vibrating screen plate (430) is arranged below the middle-layer screen (420), and a plurality of vibrating balls (440) are arranged between the vibrating screen plate (430) and the middle-layer screen (420); the aperture of the vibrating screen plate (430) is larger than that of the middle layer screen (420).
4. The steel slag processing production line according to claim 1, characterized in that: the air heater is characterized in that an air heater (310) is arranged at a feeding hole (320) of the vertical crusher (300), and an air opening of the air heater (310) faces to the inside of the feeding hole (320).
5. The steel slag processing production line according to claim 1, characterized in that: the system also comprises a brick making bin (600), and a fifth conveying belt (950) is arranged between the double-layer screening machine (400) and the brick making bin (600) to convey steel slag; a sixth conveying belt (960) is arranged between the magnetic roller iron separator (500) and the brick making bin (600) to convey steel slag.
6. The steel slag processing production line according to claim 5, characterized in that: the recycling apparatus (700) includes a chute (710) and a ton bag (720).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921648237.5U CN211436512U (en) | 2019-09-29 | 2019-09-29 | Steel slag treatment production line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921648237.5U CN211436512U (en) | 2019-09-29 | 2019-09-29 | Steel slag treatment production line |
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| CN211436512U true CN211436512U (en) | 2020-09-08 |
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| CN201921648237.5U Active CN211436512U (en) | 2019-09-29 | 2019-09-29 | Steel slag treatment production line |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110586297A (en) * | 2019-09-29 | 2019-12-20 | 广东华鳌合金新材料有限公司 | Steel slag treatment method and steel slag treatment production line |
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2019
- 2019-09-29 CN CN201921648237.5U patent/CN211436512U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110586297A (en) * | 2019-09-29 | 2019-12-20 | 广东华鳌合金新材料有限公司 | Steel slag treatment method and steel slag treatment production line |
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