CN2391104Y - Wet dust removal devulcanizer - Google Patents
Wet dust removal devulcanizer Download PDFInfo
- Publication number
- CN2391104Y CN2391104Y CN 99251003 CN99251003U CN2391104Y CN 2391104 Y CN2391104 Y CN 2391104Y CN 99251003 CN99251003 CN 99251003 CN 99251003 U CN99251003 U CN 99251003U CN 2391104 Y CN2391104 Y CN 2391104Y
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- CN
- China
- Prior art keywords
- dust
- sieve tray
- annular
- linde sieve
- plate
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a wet dust removal devulcanizer. A tangential smoke inlet 8 is arranged on a tower body 1 which is communicated with a liquid ingress pipe 2. A defogging foam plate 5, a guiding sieve plate 6 and a vortex plate 7 are arranged in the tower body from top to bottom. An annular overflow dam is arranged at the periphery of the guiding sieve plate, and an annular bubbling table is arranged at the central part of the guiding sieve plate. An annular pipe liquid divider 4 which is communicated with the liquid ingress pipe 2 is arranged above the annular bubbling table. Guiding holes are arranged on the guiding sieve plate radially. Outlets of the guiding holes face to the periphery of the guiding sieve plate. A liquid divider 3 which is communicated with the liquid ingress pipe 2 is arranged above the vortex plate 7. The utility model has the advantages that the dust removal efficiency is bigger than or equal to 98%, and the desulfurization efficiency can reach 75-85%.
Description
This practicality newly belongs to the treating apparatus of combustion products, particularly handles the device of cigarette.
China has hundreds of thousands platform coal-fired industrial furnace now, comprises a large amount of middle-size and small-size Industrial Stoves, and its combustion fumes discharging becomes the main source of atmospheric pollution.Aspect the atmosphere pollution of improvement coal-fired furnace, there is many dust-removal and desulfurizing equipment to come out, as multiple dedusters such as cyclone type, water film type, fountain, spiral-flow type, foam types.The advantage of cyclone dust collectors is simple in structure, cost is low, can capture dry ash, being convenient to powder recycles, but it is not high to capturing fine dust (less than 10 μ m) efficient, be not suitable for big air quantity flue gas, and the dry type cyclone dust collectors there is not desulfurized effect, the existing pre-dedusting that is used for miniature boiler and Multilevel Dust Control System more.Its efficiency of dust collection of water dust scrubber is higher than cyclone dust collectors, but its efficient that captures fine dust neither be very high, and desulfuration efficiency is also very low, only is about 10～20%.The characteristics of spray deduster are that the tower resistance is little, and power consumption is few, but dust-removal and desulfurizing efficient is not very high, and generally for the dust of 〉=10 μ m, efficiency of dust collection only is 70%, and for the dust of≤5 μ m, efficient is lower, and smoke desulfurization efficiency only is about 30%; Spray deduster is mainly used in and reduces flue-gas temperature and pre-dedusting.Rotating stream tray scrubber deduster load is higher, disposal ability is bigger, operating flexibility is bigger, efficiency of dust collection height (〉=90%), but because of its veneer mass transfer (desulfurization) efficient relatively poor, desire the full tower desulfuration efficiency that reaches higher, 5～6 blocks of eddy flow plates need be set, so both increase full tower resistance, can only flow to perisporium from the center because of liquid flow again, in fact and be not suitable for the too much process of column plate progression the structure of downspout is also complicated, and rotating stream tray scrubber.The dust-removal and desulfurizing efficient of bubble dust collector is higher, but because air communication need be passed the liquid layer of certain altitude when crossing sieve plate, so equipment resistance is very high, its hole diameter of sieve (perforated) plate of regular-type foam deduster is 4～8mm, when dust concentration was high, sieve plate stopped up easily.
The purpose of this utility model is comprehensively to have now the advantage of various dust-removing desulfurizing devices, and correspondingly overcomes its shortcoming, and dust-removal and desulfurizing efficient height is provided, and equipment resistance is low, and operating cost is few, can guarantee a kind of dust-removing desulfurizing device of operation steady in a long-term.
The technical solution of the utility model dust-remover device is to be provided with gas approach and to lead to feed tube is arranged on tower body, and its special character is to be provided with one in the tower body from top to bottom to remove mist plate, a linde sieve tray and an eddy flow plate; The linde sieve tray periphery is provided with an annular downflow weir, the linde sieve tray centre is provided with an annular bubbling platform, annular bubbling platform top is provided with liquid distributor leads in feed tube, and pilot hole set on the linde sieve tray becomes radial arrangement, and the outlet of pilot hole is towards the linde sieve tray periphery; Eddy flow plate top is provided with liquid distributor and leads in feed tube.
Form the rotation ascending air and grit is got rid of Xiang Tabi caught by moisture film for making flue gas enter tower body, its axially parallel of described gas approach is in the tangential direction of tower body ring wall.
For improving swirling eddy speed, will import liquid and fully send into a large amount of fine droplets forth, increase the gas-liquid contact-making surface and improve dust-removal and desulfurizing efficient, its air-flow perforation kinetic energy factor of described eddy flow plate F
0Be designed to 18～20Kg
0.5/ m
0.5S; The blade elevation angle of eddy flow plate is 35～45 °.
For preventing to stop up, the aperture d of described linde sieve tray sieve aperture on it
0Be 12.5～15mm.
Liquid is radial flows in order to help promoting, and overcomes gradient of liquid level, and its hole shape of the pilot hole on the linde sieve tray is trapezoidal, on one side be trapezoidal minor face near the linde sieve tray center, on one side be trapezoidal long limit away from the linde sieve tray center.
Liquid is radial to flow in order to help, and the liquid distributor of being located at the annular bubbling platform top of linde sieve tray is annular tube shaped liquid distributor, has the apopore of circumferentially dividing equally on its below tube wall.
The utility model dust-remover device, owing to be provided with an eddy flow plate and a linde sieve tray, so the characteristics of cyclone dust and bubble dust collector can be organically combined, being provided with of sieve plate guaranteed higher desulfuration efficiency on the one hand, avoided to realizing that certain desulfuration efficiency is provided with 5～6 blocks of eddy flow plates, utilize the higher efficiency of dust collection of eddy flow plate simultaneously, avoid being provided with 2 even 3 sieve plates and equipment resistance is sharply increased.These two kinds of plates are respectively got one combine, have complementary advantages, eliminated both sides' weak point to a certain extent, reached the purpose of high efficiency, lower resistance.This dust-removing desulfurizing device is because set linde sieve tray periphery is provided with annular downflow weir, the liquid that makes the top come from feed tube drops along the tower wall by 360 ° of annular moisture films of annular space formation that this downflow weir overflows between tower wall and downflow weir, thereby can obtain the effect that water dust scrubber effectively captures grit in the flue gas, the unidirectional water film dedusting better effects if of overflowing than regular-type foam deduster sieve plate.The linde sieve tray of the utility model is established annular bubbling platform in the centre, feed tube is arranged at annular bubbling platform top, making liquid one advance plate promptly is activated, then the mind-set periphery is radial in sieve plate flows, play and reduce the sieve plate pressure drop, make the froth bed of generation more even, guarantee higher dust-removal and desulfurizing efficient.The axially parallel of gas approach is in the utility model of the tangential direction of tower body ring wall, can make flue gas form the rotation ascending air, under the swirling eddy centrifugal action, the powder of particle diameter in the flue gas 〉=10 μ m is thrown toward wall, caught and remove by the described annular moisture film that drops along the tower wall, thereby improved efficiency of dust collection.Eddy flow plate air-flow perforation kinetic energy factor F
0Be 18～20Kg
0.5/ m
0.5The utility model of s can make swirling eddy speed greatly improve, and will import liquid and fully send into a large amount of fine droplets forth, increases the gas-liquid contact-making surface, thereby improves dust-removal and desulfurizing efficient (veneer efficient improves 20～30%); Because F
0Raising, make the eddy flow plate be in full injection workspace, liquid is all sent forth, upwards impelling forms pendular ring and along wall and dirty, does not drop by eddy flow plate blade to the tower wall, blade does not have the hydrops layer, thereby has eliminated the liquid layer pressure drop, has reduced the column plate resistance.The eddy flow plate blade elevation angle is brought up to 35～45 ° get well and is in: a, increases flue gas stream axial velocity, the time period that makes flue gas stream effectively send liquid forth prolongs, it is the corresponding gas-liquid effective time of contact of having prolonged, and increased the axial useful effect of column plate space, thereby under the situation that does not increase column plate quantity, improve dust-removal and desulfurizing efficient, and make plate pressure drop remain on proper level; B, because eddy flow plate F
0High to 18～20Kg
0.5/ m
0.5S increases the flue gas radial velocity, and axial resistance also increases thereupon, is unfavorable for reducing full tower resistance, and the blade elevation angle is increased to 35～45 °, then can reduce the air-flow radial velocity relatively, has avoided increasing of column plate resistance.Linde sieve tray screen-aperture d
0Be the utility model of 12.5～15mm, can prevent that sieve plate from stopping up, and reduce the sieve plate pressure drop.What its liquid flow path direction of the linde sieve tray of the utility model was the center to periphery is radial, the pilot hole radial arrangement is provided with, make air-flow consistent with the liquid flow path direction, help overcoming gradient of liquid level, reduce back-mixing, impel the froth bed of formation evenly to distribute, and reduce plate pressure drop, to improve dust-removal and desulfurizing efficient.The pilot hole perforate is the utility model of shape in echelon, and liquid is radial to flow to promoting, and it is more favourable to overcome gradient of liquid level.The utility model is established one and is removed the mist plate and be positioned at tower body top, can effectively remove the entrainment in the purified gas, can avoid when negative pressure is moved, because of flue gas with water causes corrosion of piping behind the dust-removing desulfurizing device.
Below in conjunction with description of drawings embodiment of the present utility model.
Fig. 1 is this dust-removing desulfurizing device structural representation;
Fig. 2 is the side schematic view that the linde sieve tray position indicates the Liquid Flow direction;
Fig. 3 is the vertical view that linde sieve tray indicates the liquid flow path direction;
Fig. 4 is a linde sieve tray pilot hole distribution schematic diagram;
Fig. 5 is annular bubbling platform schematic diagram, and a is side-looking, and b is for overlooking;
Fig. 6 is that pilot hole is overlooked enlarged drawing;
Fig. 7 is Fig. 6 B-B cutaway view;
Fig. 8 is Fig. 6 C-C cutaway view.
The utility model dust-remover device, tower body 1 are provided with gas approach 8 and lead to feed tube 2, and the axially parallel of gas approach 8 is in the tangential direction of tower body 1 ring wall.Be provided with one in the tower body from top to bottom and remove mist plate 5, a linde sieve tray 6 and an eddy flow plate 7; The linde sieve tray periphery is provided with an annular downflow weir 6-1, the linde sieve tray centre is provided with an annular bubbling platform 6-2, annular bubbling platform 6-2 top is provided with liquid distributor 4 and leads in feed tube 2, pilot hole 6-4 set on the linde sieve tray 6 becomes radial arrangement, and the outlet of pilot hole 6-4 is towards linde sieve tray 6 peripheries.Eddy flow plate 7 tops are provided with liquid distributor 3 and lead in feed tube 2.Eddy flow plate 7 makes its kinetic energy factor F through the radial dimension design
0Be 18～20Kg
0.5/ m
0.5S; The blade elevation angle of eddy flow plate 7 is 35～45 °.Its aperture of sieve aperture on the linde sieve tray 6 d
0Be designed to 12.5～15mm.Its hole shape of pilot hole 6-4 on the linde sieve tray 6 is trapezoidal, on one side be trapezoidal minor face near linde sieve tray 6 centers, on one side be trapezoidal long limit away from the linde sieve tray center.Angle between the pilot hole 6-4 hole row of described radial arrangement is 30 °.The liquid distributor 4 that is positioned at annular bubbling platform top is 15～20mm for having its aperture of apopore of circumferentially dividing equally on its below tube wall of annular tube shaped liquid distributor.The liquid distributor 3 that is positioned at spinning liquid plate top is provided with a conical baffle for its outlet below of bent-tube boiler spray distributor.
Flue gas enters in the tower from the tower lower tangential, and earlier after eddy flow plate, linde sieve tray carry out dust-removal and desulfurizing, purified gas is discharged by cat head after top eddy flow plate removes mist.Alkali lye is delivered to eddy flow plate, linde sieve tray top by circulating pump, be dispersed on the column plate through liquid distributor, contact with the rising flue gas adverse current, most of liquid is after finishing mass transfer, catching grit, along flowing in the tower bottom bucket under 360 ° of tower walls, flow into circulating sedimentation tank by the water seal blow-off pipe, after the precipitation purification, adding alkali lye or alkaline waste water, be delivered to the dust-removing desulfurizing device circulating and recovering by circulating pump.The circulating sedimentation tank lime-ash is regularly cleared.Try out and show that this dust-removing desulfurizing device is at import flue gas concentration height to 3～5g/Ndm
3The time, can reach 〉=98% efficiency of dust collection, make outlet dust concentration≤100mg/Ndm
3This dust-removing desulfurizing device desulfuration efficiency is up to 75～85%.
Claims (9)
1, dust-remover device, tower body (1) are provided with gas approach (8) and lead to has feed tube (2), it is characterized in that being provided with in the tower body (1) one from top to bottom and removes mist plate (5), a linde sieve tray (6) and an eddy flow plate (7); The linde sieve tray periphery is provided with an annular downflow weir (6-1), the linde sieve tray centre is provided with an annular bubbling platform (6-2), annular bubbling platform (6-2) top is provided with liquid distributor (4) and leads in feed tube (2), linde sieve tray (6) is gone up set pilot hole (6-4) and is become radial arrangement, and the outlet of pilot hole (6-4) is towards linde sieve tray (6) periphery; Eddy flow plate (7) top is provided with liquid distributor (3) and leads in feed tube (2).
2, dust-removing desulfurizing device as claimed in claim 1, the axially parallel that it is characterized in that gas approach (8) is in the tangential direction of tower body (1) ring wall.
3, dust-removing desulfurizing device as claimed in claim 1 is characterized in that its air-flow perforation kinetic energy factor of described eddy flow plate (7) F
0Be 18～20Kg
0.5/ m
0.5S, the blade elevation angle of eddy flow plate (7) is 35～45 °.
4, dust-removing desulfurizing device as claimed in claim 1 is characterized in that sieve aperture (6-3) its aperture d on the linde sieve tray (6)
0Be 12.5～15mm.
5, dust-removing desulfurizing device as claimed in claim 1 is characterized in that its hole shape of pilot hole (6-4) on the linde sieve tray (6) is trapezoidal, near linde sieve tray (6) on one side the center is trapezoidal minor face, on one side be trapezoidal long limit away from the linde sieve tray center.
6, dust-removing desulfurizing device as claimed in claim 1 is characterized in that the angle of pilot hole (6-4) hole row is 30 °.
7, as the described dust-removing desulfurizing device of any claim of claim 1～6, the liquid distributor (4) that it is characterized in that being located at annular bubbling platform (6-2) top of linde sieve tray be annular tube shaped liquid distributor, has the apopore of circumferentially dividing equally on tube wall below it.
8,, it is characterized in that the liquid distributor (3) of being located at eddy flow plate (7) top is provided with a conical baffle for its outlet below of bent-tube boiler spray distributor as the described dust-removing desulfurizing device of any claim of claim 1～6.
9, dust-removing desulfurizing device as claimed in claim 7 is characterized in that its aperture of described apopore is 15～20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99251003 CN2391104Y (en) | 1999-09-28 | 1999-09-28 | Wet dust removal devulcanizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99251003 CN2391104Y (en) | 1999-09-28 | 1999-09-28 | Wet dust removal devulcanizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2391104Y true CN2391104Y (en) | 2000-08-09 |
Family
ID=34035604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99251003 Expired - Fee Related CN2391104Y (en) | 1999-09-28 | 1999-09-28 | Wet dust removal devulcanizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2391104Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102091495A (en) * | 2010-12-29 | 2011-06-15 | 上海大学 | Dynamic jet flow energy-saving demister |
| CN106512662A (en) * | 2016-11-15 | 2017-03-22 | 中石化南京工程有限公司 | Dust removing method and device for catalytic-cracking fume |
| CN108096958A (en) * | 2018-01-10 | 2018-06-01 | 宁波清智环保科技有限公司 | A kind of dust-extraction unit without dismantling and cleaning |
-
1999
- 1999-09-28 CN CN 99251003 patent/CN2391104Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102091495A (en) * | 2010-12-29 | 2011-06-15 | 上海大学 | Dynamic jet flow energy-saving demister |
| CN106512662A (en) * | 2016-11-15 | 2017-03-22 | 中石化南京工程有限公司 | Dust removing method and device for catalytic-cracking fume |
| CN108096958A (en) * | 2018-01-10 | 2018-06-01 | 宁波清智环保科技有限公司 | A kind of dust-extraction unit without dismantling and cleaning |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |