CN205699944U - A kind of device that slag processing rolling district dust-laden steam is carried out dust removal process - Google Patents
A kind of device that slag processing rolling district dust-laden steam is carried out dust removal process Download PDFInfo
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- CN205699944U CN205699944U CN201620237897.4U CN201620237897U CN205699944U CN 205699944 U CN205699944 U CN 205699944U CN 201620237897 U CN201620237897 U CN 201620237897U CN 205699944 U CN205699944 U CN 205699944U
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Abstract
This utility model relates to a kind of device that slag processing rolling district dust-laden steam carries out dust removal process, device includes spray column, eddy flow tower, connect spray column and the pipeline of eddy flow tower, the top of spray column arranges the first high-pressure spray gun, the top of spray column is provided with the first opening, first peristome is connected with space, rolling district by pipeline, dust-laden steam for being produced in rolling district introduces the top of spray column, the pipeline connecting spray column and eddy flow tower is arranged on spray column and the bottom of eddy flow tower, dust-laden steam after being processed by spray column is introduced tangentially into the relaying afterflow of eddy flow tower and moves, in the bottom of eddy flow tower, the second high-pressure spray gun is set, at the middle part of eddy flow tower, rotating flow cone is set, the top of eddy flow tower is provided with the second opening, steam after being processed by eddy flow tower is discharged.This device efficiency of dust collection and plant maintenance amount are greatly lowered.
Description
Technical field
This utility model is a kind of new technology that slag processing rolling district dust-laden steam carries out dust removal process, and this utility model uses spraying and dedusting and two kinds of methods of cyclonic separation that dust-laden steam is carried out continuous processing, it is achieved the dedusting of dust-laden steam.
Background technology
Slag produced from steel-smelting has in pressure heat stewing process technique, and the dust-laden steam produced in slag roll milling process, its dust concentration is high, and dust size is little, and dedusting difficulty is big.Flue gas is after dust removal process, and the dust of collection can reclaim return slag processing line, had both protected environment, and it also avoid energy waste simultaneously.At present, the domestic dedusting method for this region is fewer, and major part uses the dirty plate cleaner unit of folding.The principle of the dirty plate cleaner unit of folding is: increases the plate collision probability dirty with folding of dust-laden water droplet in flue gas by arranging the dirty plate of folding, thus reaches dedusting purpose.The feature of the dirty plate cleaner unit of folding is that equipment efficiency of dust collection is low, and equipment is particularly easy to blocking, and cleaning cycle is short, it is impossible to reach the environmental protection standard that country is new.
Utility model content
The purpose of this utility model is to provide a kind of new technology that slag processing rolling district dust-laden steam carries out dust removal process, and compared with this new technology plate cleaner unit dirty with prior art folding, equipment efficiency of dust collection and plant maintenance amount are greatly lowered.
This utility model provides a kind of device that slag processing rolling district dust-laden steam carries out dust removal process, it includes spray column, eddy flow tower, first pipeline, second pipe, first high-pressure spray gun and the second high-pressure spray gun, the top of spray column arranges the first high-pressure spray gun, the top of spray column is provided with the first opening, first opening is connected with space, rolling district by the first pipeline, dust-laden steam for being produced in rolling district introduces the top of spray column, the second pipe connecting spray column and eddy flow tower is arranged on spray column and the bottom of eddy flow tower, dust-laden steam after being processed by spray column is introduced tangentially into the relaying afterflow of eddy flow tower and moves, in the bottom of eddy flow tower, the second high-pressure spray gun is set, at the middle part of eddy flow tower, rotating flow cone is set, the top of eddy flow tower is provided with the second opening, steam after being processed by eddy flow tower is discharged by blower fan.
Wherein, the first high-pressure spray gun is provided with multilamellar, preferably 2-8 layer, is arranged in order downwards from the top of spray column；The pressure of supply water of the first high-pressure spray gun is 0.5-2MPa, preferably 1.0MPa, and the drop particle diameter of ejection controls within 200 microns, preferably 50-200 micron.
Wherein, the second high-pressure spray gun arranges at least one of which, preferably 1-3 layer；The pressure of supply water of the second high-pressure spray gun is 0.5-2MPa, preferably 1.0MPa, and the drop particle diameter of ejection controls within 200 microns, preferably 30-150 micron.
Wherein, the second high-pressure spray gun is arranged on the air intake of described rotating flow cone.
Wherein, rotating flow cone arranges at least one of which, preferably 1-3 layer, and each layer rotating flow cone centrifugal force is different, the grit of corresponding trapping different-grain diameter.
Also providing for a kind of method using described device that rolling district dust-laden steam is carried out dust removal process, it comprises the following steps:
(1) spraying and dedusting step: when the dust-laden steam of rolling district generation is through the top of the first pipeline introducing spray column, on spray column top, the first high-pressure spray gun is set, its water droplet ejected mutually collides with the grit of bigger granularity in dust-laden steam, formation dust-laden drop agglomerated together, under gravity, dust-containing liquid drips or sticks to be swept away by water on spray column inwall, after falling into bottom spray column, discharges through the first sewage draining exit；
(2) cyclonic separation process steps: the dust-laden steam after spray column processes tangentially enters into the relaying afterflow of eddy flow tower through second pipe and moves, eddy flow tower bottom is provided with the second high-pressure spray gun, its water droplet ejected mutually collides with the grit of smaller particle size in dust-laden steam, formation dust-laden drop agglomerated together, at the middle part of eddy flow tower, rotating flow cone is set, dust-containing liquid is made to drop under centrifugal force and action of gravity, dust-containing liquid drips or sticks to be swept away by water on eddy flow inner wall of tower, after falling into eddy flow tower bottom, discharge through the second sewage draining exit；Steam after eddy flow tower processes delivers to air-introduced machine discharge by the 3rd pipeline.
Wherein, spray column bottom arranges the first sewage draining exit, and the dust-laden drop after being processed by spray column is discharged；The bottom of eddy flow tower arranges the second sewage draining exit, and the dust-laden drop after being processed by eddy flow tower is discharged.
Accompanying drawing explanation
Fig. 1 shows the device that slag processing rolling district dust-laden steam carries out dust removal process of the present utility model.
Detailed description of the invention
nullAs shown in Figure 1，A kind of device that slag processing rolling district dust-laden steam is carried out dust removal process，It includes that spraying it includes spray column 1、Eddy flow tower 2、First pipeline 3、Second pipe 5、First high-pressure spray gun 4 and the second high-pressure spray gun 6，The top of spray column 1 arranges the first high-pressure spray gun 4，The top of spray column 1 is provided with the first opening，First opening is connected with rolling district 9 by the first pipeline 3，For the dust-laden steam 10 that rolling district produces being introduced the top of spray column 1，The second pipe 5 connecting spray column 1 and eddy flow tower 2 is arranged on spray column 1 and the bottom of eddy flow tower 2，Dust-laden steam after being processed by spray column 1 is introduced tangentially into eddy flow tower 2 and relays afterflow and move，Second high-pressure spray gun 6 is set in the bottom of eddy flow tower 2，At the middle part of eddy flow tower 2, rotating flow cone 7 is set，The top of eddy flow tower 2 is provided with the second opening，Steam after being processed by eddy flow tower 2 is discharged.Steam after eddy flow tower 2 processes delivers to air-introduced machine discharge by the 3rd pipeline 8.Rotating flow cone 7 arranges at least one of which.Spray column 1 bottom arranges the first sewage draining exit, and the dust-laden drop after being processed by spray column is discharged；The bottom of eddy flow tower 2 arranges the second sewage draining exit, and the dust-laden drop after being processed by eddy flow tower is discharged.
First high-pressure spray gun 4 is provided with multilamellar, preferably 2-8 layer, is arranged in order from the top down of spray column 1；The pressure of supply water of the first high-pressure spray gun is 0.5-2MPa, preferably 1.0MPa, and the drop particle diameter of ejection controls within 200 microns, preferably 50-200 micron.Second high-pressure spray gun 6 arranges at least one of which, preferably 1-3 layer；The pressure of supply water of the second high-pressure spray gun is 0.5-2MPa, preferably 1.0MPa, and the drop particle diameter of ejection controls within 200 microns, preferably 30-150 micron.Second high-pressure spray gun 6 is arranged on the top of described second pipe 5.And it is positioned at the bottom of rotating flow cone 7.
Using said apparatus rolling district dust-laden steam is carried out dust removal process method, it includes two steps: spraying and dedusting and cyclonic separation.
Spraying and dedusting step: the dust-laden steam produced when described rolling district introduces the top of spray column 1 through the first pipeline 3, on spray column 1 top, the first high-pressure spray gun 4 is set, its water droplet ejected mutually collides with the grit of bigger granularity in dust-laden steam, formation dust-laden drop agglomerated together, under gravity, dust-containing liquid drips or sticks to be swept away by water on spray column inwall, after falling into bottom spray column 1, discharges through the first sewage draining exit；
Cyclonic separation process steps: through spray column 1 process after dust-laden steam tangentially through second pipe 5 enter into eddy flow tower 2 relay afterflow move, the second high-pressure spray gun 6 it is provided with bottom eddy flow tower 2, its water droplet ejected mutually collides with the grit of smaller particle size in dust-laden steam, formation dust-laden drop agglomerated together, at the middle part of eddy flow tower 2, rotating flow cone 7 is set, dust-containing liquid is made to drop under centrifugal force and action of gravity, dust-containing liquid drips or sticks to be swept away by water on eddy flow tower 2 inwall, after falling into bottom eddy flow tower 2, discharge through the second sewage draining exit；Steam after eddy flow tower 2 processes delivers to air-introduced machine discharge by the 3rd pipeline 8.
The technological parameter of said apparatus is as follows:
Process exhaust gas volumn: 130000m3/h；Entrance flue gas temperature: 120 DEG C；Exit gas temperature: 72 DEG C；Water consumption: 190t/h；
System equipment resistance: about 3000Pa；Exiting flue gas dust content: < 100mg/Nm3。
During spraying and dedusting, the drop particle diameter that multi-layer high-voltage spray gun (pressure of supply water: 1.0MPa) sprays is little and uniform, controls within 200 microns.In order to ensure that water droplet and flue gas have sufficient incorporation time in a device, the flue gas flow rate of design is only 3～5 meter per seconds, it it is 4～5 times of the prior art folding dirty plate cleaner unit time of staying, thus efficiency of dust collection is greatly improved, coarse granule almost all in flue gas is removed by spraying and dedusting, spray dust collector path space is big simultaneously, is not easy to dust stratification, decreases the maintenance of equipment.
The drop particle diameter that the high-pressure spray gun (pressure of supply water: 1.0MPa) that cyclonic separation process is used sprays controls within 200 microns, further the fine grained in dust-laden steam is trapped, by the setting of rotating flow cone, rationally improve device interior centrifugal force, make the fine grained being atomized droplet trapping be removed.
The dust pelletizing system equipment resistance loss utilizing this utility model principle is only about 3000 handkerchiefs, and the problem substantially solving cleaner blocking improves efficiency of dust collection, reached national new standard.
Spray gun that the cleaner of this utility model principle used and nozzle quantity is utilized to determine according to handled exhaust gas volumn.Meanwhile, the concrete overall dimensions of rotating flow cone, rotating flow cone position is set, design of top cyclone space etc. is relevant according to rolling district dust quantity, character, particle diameter.
Claims (8)
- null1. the device that slag processing rolling district dust-laden steam is carried out dust removal process，It includes spray column (1)、Eddy flow tower (2)、First pipeline (3)、Second pipe (5)、First high-pressure spray gun (4) and the second high-pressure spray gun (6)，The top of spray column (1) arranges the first high-pressure spray gun (4)，The top of spray column (1) is provided with the first opening，First opening is connected with space, rolling district by the first pipeline (3)，Dust-laden steam for being produced in rolling district introduces the top of spray column (1)，The second pipe (5) connecting spray column (1) and eddy flow tower (2) is arranged on spray column (1) and the bottom of eddy flow tower (2)，Dust-laden steam after being processed by spray column (1) is introduced tangentially into eddy flow tower (2) relaying afterflow and moves，In the bottom of eddy flow tower (2), the second high-pressure spray gun (6) is set，At the middle part of eddy flow tower (2), rotating flow cone (7) is set，The top of eddy flow tower (2) is provided with the second opening，Steam after being processed by eddy flow tower (2) is discharged by blower fan.
- Device the most according to claim 1, it is characterised in that the first high-pressure spray gun (4) is provided with multilamellar, is arranged in order downwards from the top of spray column (1)；The pressure of supply water of the first high-pressure spray gun is 0.5-2MPa, and the drop particle diameter of ejection controls within 200 microns.
- Device the most according to claim 2, it is characterised in that the first high-pressure spray gun (6) arranges 2-8 layer, the pressure of supply water of the first high-pressure spray gun is 1.0Mpa, and the drop particle diameter of ejection controls at 50-200 micron.
- 4. according to the device one of claim 1-3 Suo Shu, it is characterised in that the second high-pressure spray gun (6) arranges at least one of which；The pressure of supply water of the second high-pressure spray gun is 0.5-2MPa, and the drop particle diameter of ejection controls within 200 microns.
- Device the most according to claim 4, it is characterised in that the second high-pressure spray gun (6) arranges 1-3 layer, the pressure of supply water of the second high-pressure spray gun is 1.0Mpa, and the drop particle diameter of ejection controls at 30-150 micron.
- 6. according to the device one of claim 1-3 Suo Shu, it is characterised in that the second high-pressure spray gun (6) is arranged on the top of described second pipe (5), and is positioned at the bottom of rotating flow cone (7).
- 7. according to the device one of claim 1-3 Suo Shu, it is characterised in that rotating flow cone (7) arranges at least one of which, and each layer rotating flow cone (7) centrifugal force is different, the grit of corresponding trapping different-grain diameter.
- Device the most according to claim 7, it is characterised in that rotating flow cone (7) arranges 1-3 layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620237897.4U CN205699944U (en) | 2016-03-25 | 2016-03-25 | A kind of device that slag processing rolling district dust-laden steam is carried out dust removal process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620237897.4U CN205699944U (en) | 2016-03-25 | 2016-03-25 | A kind of device that slag processing rolling district dust-laden steam is carried out dust removal process |
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| CN205699944U true CN205699944U (en) | 2016-11-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105642067A (en) * | 2016-03-25 | 2016-06-08 | 中冶节能环保有限责任公司 | Device and method for carrying out dust removing treatment on dust-containing steam in steel slag treating and rolling zone |
-
2016
- 2016-03-25 CN CN201620237897.4U patent/CN205699944U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105642067A (en) * | 2016-03-25 | 2016-06-08 | 中冶节能环保有限责任公司 | Device and method for carrying out dust removing treatment on dust-containing steam in steel slag treating and rolling zone |
| CN105642067B (en) * | 2016-03-25 | 2017-12-08 | 中冶节能环保有限责任公司 | A kind of apparatus and method that dust removal process is carried out to slag processing rolling area dust-laden steam |
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