CN202157084U - Gas deduster - Google Patents
Gas deduster Download PDFInfo
- Publication number
- CN202157084U CN202157084U CN2011201901257U CN201120190125U CN202157084U CN 202157084 U CN202157084 U CN 202157084U CN 2011201901257 U CN2011201901257 U CN 2011201901257U CN 201120190125 U CN201120190125 U CN 201120190125U CN 202157084 U CN202157084 U CN 202157084U
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- CN
- China
- Prior art keywords
- venturi
- gas
- housing
- cylindrical shell
- venturi meter
- Prior art date
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Abstract
The utility model discloses a gas deduster. A gas inlet and a water inlet pipe are arranged on a conical surface at the upper portion of a casing. The end portion of the water inlet pipe is connected with a nozzle and then inserted into the upper portion of a venturi. A spiral flow board is arranged at the lower portion of the venturi. An outlet end of the lower portion of the venturi is connected with a sludge trap. The upper portion of the sludge trap is provided with a clean coal gas discharging pipe. A slurry discharging pipe which inclines and extends out of the casing is arranged at the bottom of the sludge trap. A dust discharging opening is arranged at the bottom of the casing, and an airflow diverter is arranged in the casing. The airflow diverter comprises a barrel capable of rotating, and a spiral flow diverting body is arranged on the inner wall of the barrel. The upper portion of the venturi is located in the barrel, the height position of the upper end of the spiral flow diverting body is lower than that of an inlet of the venturi, and the top of the casing is provided with a driving motor which drives the barrel to rotate. The gas deduster can enable coal gas which is processed through gravitation dust collection to enter the venture at a high speed and perform high-efficiency water-gas mixture with water, thereby facilitating improvement on dedusting efficiency.
Description
Technical field
The utility model relates to a kind of dedusting device.
Background technology
The blast furnace ironmaking pig iron per ton produces 1800-2000Nm approximately
3Coal gas, wherein contain 20-24%CO and 2%H
2, calorific value is approximately 3500-3800kJ/m
3, be the main fuel of Iron And Steel Plant's blast funnace hot blast stove, coke oven, process furnace, electricity generation boiler etc.Dust content of gas 40-100g/m from the discharge of blast furnace furnace roof
3, the general industry burner requires dustiness less than 5-10mg/m
3, so blast furnace gas must dedusting could satisfy request for utilization.
Common dedusting of blast furnace gas system and device and being arranged with: 1. the FSU adopts more gravity dedusting device-washing tower-Venturi meter-electric precipitation; 2. gravity dedusting device-Venturi meter-electric precipitation of adopting of the strange Iron And Steel Plant in NKK Fushan Iron And Steel Plant and river; 3. one 2 grades of Venturi meters of gravity dedusting device-1 grade Venturi meter that Japanese Nippon Steel and Chinese Baosteel adopt; 4. adopt more gravity dedusting device one circumferential weld (than Xiao husband) in West Europe; 5. China's iron work gravity dedusting device-washing tower-Venturi meters that adopt more.
To sum up, existing dedusting of blast furnace gas device all is the dust-removal system that gravity dedusting device and wet type dedusting device (washing tower and Venturi meter) are used, and can satisfy the dedusting of blast furnace gas requirement.But; Facts have proved that still there are some problems in this system; Its main drawback is: gravity dedusting device and the split of wet type dedusting device are provided with; In the thick dust separating coal gas of gravity dedusting device must be from it, discharge, get into wet type coal gas dedusting device then and carry out smart dedusting, long flow path, floor space are big, complex equipments, investment are big.Disclose a kind of dry-wet integrated dedusting device though publication number is the Chinese patent document of CN1508269A, this dedusting device carries out the thick dedusting of gravity to coal gas earlier, through Venturi meter coal gas is carried out gas-vapor mix then; Further remove dust contained in the coal gas, still, before carrying out gas-vapor mix; Coal gas is through self diffuse in the Venturi meter, and therefore, this self velocity of diffusion is very low; For the big heavy discount of efficient meeting of gas-vapor mix, and, when the intravital pressure of shell does not reach balance; Then can be stranded in the housing by the coal gas of gas-vapor mix; Cause not to be processed directly and discharge, therefore, the processing efficiency of this dedusting device has much room for improvement.
Summary of the invention
To above-mentioned technical problem, the utility model provides a kind of dedusting device, and this dedusting device can make the coal gas through gravitational dust collection enter into Venturi meter with higher speed, carries out water gas-vapor mix efficiently with water, helps improving efficiency of dust collection.
The technical scheme that realizes the utility model purpose is following:
The dedusting device, the top and the bottom of housing are tapered, and the middle part of housing is a round shape; On the conical surface of housing top, be provided with gas inlet and water inlet pipe, be inserted into the top of a Venturi meter behind the end connection nozzle of water inlet pipe, the bottom of Venturi meter is provided with the eddy flow plate; The lower part outlet end of Venturi meter connects a sludge trap; Sludge trap top is provided with the clean gas vent pipe, and the bottom is provided with and stretches out the outer mud vent pipe of housing, is provided with ash discharging hole at housing bottom; Enclosure interior is provided with the air-flow flow diverter; This air-flow flow diverter comprises a rotatable cylindrical shell, on the inwall of cylindrical shell, is provided with spiral drainage body, and the top of said Venturi meter is arranged in cylindrical shell; The height location that said spiral draws fluidic upper end is lower than the height location of venturi inlet, is provided with the drive-motor that drives said cylindrical shell rotation at the top of housing.
Said Venturi meter is fixed on the inwall of cylindrical shell through a support.
Adopted such scheme, the gas that contains dust gets into from the gas inlet, carries out the thick dedusting of gravity earlier; The dust of removing is discharged by the ash discharging hole of dedusting device bottom; Start drive-motor and drive the rotation of air-flow flow diverter, the spiral drainage body of air-flow flow diverter produces eddy effect in rotary course, will pass through thick dust separating gas and guide to spiral with the form of vortex and draw the fluidic top; These gases get into through the upper end mouth of pipe that enters into after overstocking into Venturi meter; After carrying out gas-vapor mix with the water of nozzle ejection droplet form, get into sludge trap from venturi outlet and remove plaster, carry out smart dedusting.The mud that sludge trap traps extend to from trap bottom the dedusting device outside the mud vent pipe discharge the clean air vent pipe discharge of clean gas outside sludge trap top extends to the dedusting device.The utility model accelerates the flow velocity of gas through the guiding of air-flow flow diverter, has improved the mixture homogeneity of aqueous vapor, makes dust contained in the coal gas dyed the back by water logging substantially and captures through sludge trap, makes efficiency of dust collection be improved.
Further, Venturi meter is fixed on through a support on the inwall of cylindrical shell, when the air-flow flow diverter when rotated; Drive also rotation thereupon of Venturi meter simultaneously; Therefore, Venturi meter self also produces a vortex effect, and this even raising for gas-vapor mix has formed correspondingly effect further.
Description of drawings
Fig. 1 is the structural representation of the utility model;
In the accompanying drawing, 1 is housing, and 2 is the gas inlet, and 3 is water inlet pipe, and 4 is Venturi meter; 5 is the eddy flow plate, and 6 is sludge trap, and 7 is gas outlet pipe, and 8 is the mud vent pipe, and 9 is ash discharging hole; 10 is cylindrical shell, and 11 is spiral drainage body, and 12 is support, and 13 is drive-motor, and 14 is rotating disk.
Embodiment
With reference to Fig. 1, the dedusting device of the utility model, the top and the bottom of housing 1 are tapered; The middle part of housing 1 is a round shape; On the conical surface of housing top, be provided with gas inlet 2 and water inlet pipe 3, be inserted into the top of a Venturi meter 4 behind the end connection nozzle of water inlet pipe 3, the bottom of Venturi meter is provided with eddy flow plate 5; The lower part outlet end of Venturi meter 4 connects a sludge trap 6; Sludge trap top is provided with clean gas vent pipe 7, and the bottom is provided with and stretches out the outer mud vent pipe 8 of housing, is provided with ash discharging hole 9 at housing bottom.1 one is provided with the air-flow flow diverter in the housing; This air-flow flow diverter comprises a rotatable cylindrical shell 10, on the inwall of cylindrical shell, is provided with spiral drainage body 11, and the top of said Venturi meter 4 is arranged in cylindrical shell; Said Wen's 4 pipes are fixed on the inwall of cylindrical shell through a support 12; This support is made up of three poles, with 120 degree uniformly at intervals around Venturi meter 4, the two ends of each pole are connected with cylindrical shell 10 with Venturi meter 4 through welding process respectively.Air-flow is flowed to the top of cylindrical shell by spiral drainage body 11 stirrings formation eddy current, and the height location of the upper end of said spiral drainage body 11 is lower than the height location of venturi inlet, adopts such position setting can be convenient to air-flow and is directed back entering Venturi meter 4.Be provided with the drive-motor 13 that drives said cylindrical shell rotation at the top of housing, the output axle head of drive-motor 13 is provided with a rotating disk 14, and this rotating disk is connected with the upper end of cylindrical shell 10, rotates so that drive cylindrical shell.
Claims (2)
1. dedusting device, the top and the bottom of housing are tapered, and the middle part of housing is a round shape; On the conical surface of housing top, be provided with gas inlet and water inlet pipe, be inserted into the top of a Venturi meter behind the end connection nozzle of water inlet pipe, the bottom of Venturi meter is provided with the eddy flow plate; The lower part outlet end of Venturi meter connects a sludge trap; Sludge trap top is provided with the clean gas vent pipe, and the bottom is provided with and stretches out the outer mud vent pipe of housing, is provided with ash discharging hole at housing bottom; It is characterized in that: enclosure interior is provided with the air-flow flow diverter; This air-flow flow diverter comprises a rotatable cylindrical shell, on the inwall of cylindrical shell, is provided with spiral drainage body, and the top of said Venturi meter is arranged in cylindrical shell; The height location that said spiral draws fluidic upper end is lower than the height location of venturi inlet, is provided with the drive-motor that drives said cylindrical shell rotation at the top of housing.
2. dedusting device according to claim 1 is characterized in that: said Venturi meter is fixed on the inwall of cylindrical shell through a support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201901257U CN202157084U (en) | 2011-06-08 | 2011-06-08 | Gas deduster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201901257U CN202157084U (en) | 2011-06-08 | 2011-06-08 | Gas deduster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202157084U true CN202157084U (en) | 2012-03-07 |
Family
ID=45764726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201901257U Expired - Lifetime CN202157084U (en) | 2011-06-08 | 2011-06-08 | Gas deduster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202157084U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102212634A (en) * | 2011-06-08 | 2011-10-12 | 陈小英 | Gas dust collector |
-
2011
- 2011-06-08 CN CN2011201901257U patent/CN202157084U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102212634A (en) * | 2011-06-08 | 2011-10-12 | 陈小英 | Gas dust collector |
| CN102212634B (en) * | 2011-06-08 | 2012-11-21 | 陈小英 | Gas dust collector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120307 Effective date of abandoning: 20130306 |
|
| RGAV | Abandon patent right to avoid regrant |