CN201148417Y - Spray evaporation cooling dust removing apparatus of converter gas purification system - Google Patents
Spray evaporation cooling dust removing apparatus of converter gas purification system Download PDFInfo
- Publication number
- CN201148417Y CN201148417Y CNU2007203095085U CN200720309508U CN201148417Y CN 201148417 Y CN201148417 Y CN 201148417Y CN U2007203095085 U CNU2007203095085 U CN U2007203095085U CN 200720309508 U CN200720309508 U CN 200720309508U CN 201148417 Y CN201148417 Y CN 201148417Y
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- cooling
- cooling tower
- tower
- expansion joint
- spray
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Abstract
The utility model belongs to the field of heat exchange and in particular relates to a spraying, evaporating, cooling and dedusting device that is used in the gas purification system of a one-time dedusting metallurgic converter. The device comprises a cooling tower 1 and a scrubbing tower 5; an upper nozzle 2 used for spraying upwards is arranged in the cooling tower 1; at least two upper nozzles 2 and a layer of spray gun 3 are arranged in the cooling tower 1; a non-metal high-temperature expansion joint 4 is arranged between the cooling tower 1 and the scrubbing tower 5; the inside of the scrubbing tower 5 is provided with a plurality of layers of lower nozzles 6. In the device, the structure is simple and reasonable; the spraying and cooling device has low resistance; the vaporization cooling is adopted; the amount of water spray is small; the expansion joint is arranged in the middle part and can not be easily burnt; simultaneously, the water can contact the smoke gas early; the temperature of the smoke gas entering the cooling tower is reduced; and the cooling tower is connected through a flange, which facilitates the replacement.
Description
Technical field
The utility model belongs to the heat exchange field, particularly a kind of spray evaporation cooling and dedusting device that is used for the converter coal gas purification system of metallurgical converter one-time dedusting.
Background technology
Produce during converter steelmaking and contain a large amount of carbon monoxide (CO) flue gas, dust content is up to 80-120g/Nm3, can not directly be used as other purposes, must be through after the dedusting, dust is dropped to below the GB and could use, flue gas through behind the gasification cooling flue greatly about about 1000 ℃, through about about 70 ℃ of thick dedusting cooling back, efficiency of dust collection will reach more than 95%, and most of steel mills adopt one-level Venturi meter (being called for short " literary composition "), add a bowl type nozzle on Venturi meter top, the water that gushes out is through a civilian aditus laryngis, impacted by high velocity air, be atomized into tiny water droplet, play cooling and thick dust separating effect.But because the aditus laryngis of a literary composition is little, resistance is just big, and the resistance of a literary composition is added the resistance of elbow separator greatly about 3-5kpa, has increased the required power of blower fan, and the resistance that has increased total system is decreased, thereby makes efficiency of dust collection low.There is part steel mill to adopt the spray evaporation cooling tower at present, be added with nonmetal high temperature expansion joint on cooling tower top, water-cooling jacket, overflow water seal and elbow separator have been cancelled, resistance is reduced to about 500pa, efficiency of dust collection reaches more than 95% simultaneously, but a nozzle only is set at the cooling tower top, in case stifled, temperature can sharply increase; Nonmetal high temperature expansion joint actual high temperature resistant about 600-700 ℃, if hydraulic pressure reduces suddenly, the perhaps unexpected phenomenon of blocking of spray gun, expansion joint will be burnt out, non-metal expansion joint is worth expensive, and fabrication cycle is long, is not easy to change, to be forced to blowing out, and can bring very big loss to steel mill.
Summary of the invention
The purpose of this utility model is to propose a kind of spray evaporation cooling and dedusting device that can effectively improve the converter coal gas purification system of efficiency of dust collection.
To achieve these goals, the utility model provides following technical scheme:
The spray evaporation cooling and dedusting device of a kind of converter coal gas purification system, comprise cooling tower 1 and washing tower 5, the upwards upper nozzle 2 of spray is arranged in the cooling tower 1, wherein, at least two upper nozzles 2 and one deck spray gun 3 are arranged in the described cooling tower 1, nonmetal high temperature expansion joint 4 is arranged between cooling tower 1 and the washing tower 5, several layers lower nozzle 6 is arranged in the washing tower 5.
The beneficial effects of the utility model are:
The utility model is simple and reasonable for structure, and the spray cooling device resistance is little, adopts the vaporization cooling, and injection flow rate is few; Three nozzles are adopted on top, and temperature can sharply not increase; The high temperature non-metal expansion joint is put into the middle part, is difficult for to be made water touch flue gas ahead of time simultaneously, the flue-gas temperature that enters cooling tower is reduced by scaling loss; The spray evaporation cooling tower adopts flange to connect, and it is convenient to change.
Brief Description Of Drawings
Fig. 1 is the structural representation of the spray evaporation cooling and dedusting device in the utility model converter coal gas purification system.
Embodiment
Introduce an embodiment of the present utility model below in conjunction with accompanying drawing.
Present embodiment provides a kind of spray evaporation cooling and dedusting device, and this device divides two parts up and down, and top is cooling tower, and the bottom is a washing tower, and expansion joint is between cooling tower and washing tower.At cooling tower top layout upwards three nozzles and the downward spray gun of one deck of spray, evenly temperature is cooled to about 100 ℃, flue gas through behind the expansion joint by nozzle washing flue gas, its temperature is reached about 70 degree, efficiency of dust collection reaches more than 95%.
Referring to accompanying drawing, this device mainly is made up of the cooling tower 1 that is used for spray evaporation, upper nozzle 2, spray gun 3, high temperature non-metal expansion joint 4, washing tower 5, lower nozzle 6 etc.
Flue gas enters cooling tower 1 from the gasification cooling flue outlet, three upper nozzles 2 and one deck spray gun 3 that upwards spray being arranged in the cooling tower 1, the bottom has nonmetal high temperature expansion joint 4 to be connected with cooling tower 1 usefulness flange, expansion joint 4 lower flange are connected with washing tower 5 usefulness flanges, and several layers lower nozzle 6 is arranged in the washing tower 5.
Three spray guns that make progress 2 are arranged in the cooling tower 1,, also be unlikely to make temperature in too high and cooling tower 1 is burnt out even there is one latch up phenomenon is arranged.
Nonmetal high temperature expansion joint 4 is placed on the middle part of cooling tower 1 and washing tower 5, temperature is about 100 ℃, be difficult to be burnt out, even three nozzles 2 are stifled simultaneously, also have spray gun 3 coolings, also expansion joint can not burnt out, the top cooling tower may be burnt out at most, but the cooling tower cylindrical shell is made simple, and cost is low.Connect with flange, easy for installation, can not have a significant impact producing.
Claims (3)
1. the spray evaporation cooling and dedusting device of a converter coal gas purification system, comprise cooling tower (1) and washing tower (5), the upwards upper nozzle (2) of spray is arranged in the cooling tower (1), it is characterized in that: at least two upper nozzles (2) and one deck spray gun (3) are arranged in the described cooling tower (1), between cooling tower (1) and the washing tower (5) nonmetal high temperature expansion joint (4) is arranged, several layers lower nozzle (6) is arranged in the washing tower (5).
2. device according to claim 1 is characterized in that: nonmetal high temperature expansion joint (4) is connected with flange with cooling tower (1) and/or washing tower (5).
3. device according to claim 1 is characterized in that: upper nozzle (2) is positioned at the upper end of nonmetal high temperature expansion joint (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203095085U CN201148417Y (en) | 2007-12-26 | 2007-12-26 | Spray evaporation cooling dust removing apparatus of converter gas purification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203095085U CN201148417Y (en) | 2007-12-26 | 2007-12-26 | Spray evaporation cooling dust removing apparatus of converter gas purification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201148417Y true CN201148417Y (en) | 2008-11-12 |
Family
ID=40116184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203095085U Expired - Lifetime CN201148417Y (en) | 2007-12-26 | 2007-12-26 | Spray evaporation cooling dust removing apparatus of converter gas purification system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201148417Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102382932A (en) * | 2011-10-31 | 2012-03-21 | 中冶南方工程技术有限公司 | Gas cooling technology used for dry dedusting for converter gas |
-
2007
- 2007-12-26 CN CNU2007203095085U patent/CN201148417Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102382932A (en) * | 2011-10-31 | 2012-03-21 | 中冶南方工程技术有限公司 | Gas cooling technology used for dry dedusting for converter gas |
| CN102382932B (en) * | 2011-10-31 | 2013-05-01 | 中冶南方工程技术有限公司 | Gas cooling technology used for dry dedusting for converter gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100083 Beijing City, Haidian District Xueyuan Road District No. 30 Fangxing building room 702 Patentee after: Beijing bpbk energy-saving environmental protection Limited by Share Ltd Address before: 100083 Beijing City, Haidian District Xueyuan Road District No. 30 Fangxing building room 702 Patentee before: Beijing Bopeng Beike Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081112 |