CN101130153A - Double -circulation dust settling and desulfurating tower with vertical screen deck - Google Patents
Double -circulation dust settling and desulfurating tower with vertical screen deck Download PDFInfo
- Publication number
- CN101130153A CN101130153A CNA2007100355564A CN200710035556A CN101130153A CN 101130153 A CN101130153 A CN 101130153A CN A2007100355564 A CNA2007100355564 A CN A2007100355564A CN 200710035556 A CN200710035556 A CN 200710035556A CN 101130153 A CN101130153 A CN 101130153A
- Authority
- CN
- China
- Prior art keywords
- urceolus
- sieve
- hole
- inner core
- outer cylinder
- Prior art date
- 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.)
- Granted
Links
Images
Landscapes
- Treating Waste Gases (AREA)
Abstract
The invention discloses a desulfurizing gas wash tower of dual-circulating vertical sieve plate, which comprises the following parts: outer cylinder with bottom, inner cylinder with two open-shaped ends at lower segment of outer cylinder distributed with the same shaft of the outer cylinder, loop-shaped gas path between the inner and outer cylinders, suspension distance between the bottom end of inner cylinder and the outer cylinder, a coil of grid jet hole at bottom, sealing board to connect inner wall of the outer cylinder and top of the outer cylinder, flue gas purifying outlet on the top of outer cylinder, vertical sieve board with outer circulating overflow dam between the second spiral sprayer group and inner cylinder top, sieve board hole on the vertical sieve board, sieve lid on the sieve board hole, sieve lid hole at the bottom of sieve lid, grid-shaped bar hole on the sieve lid, wherein the sieve lid hole and grid-shaped bar hole interconnect upper layer of the outer cylinder. The invention has high desulfurizing efficiency without blocking, which is fit for recycling metal tail ore of alkaline desulfurizer with low cost especially.
Description
Technical field
The present invention relates to the wet flue gas desulfurization and dust removal device, relate in particular to a kind of double.
Background technology
At present, a kind of fume desulphurization method that domestic and international application is the widest is a wet type limestone/gypsum method, and this method is made absorbent with calcium, absorbs the oxysulfide of removing in the flue gas, but its product gypsum is owing to usually can not get well disposing to abandon to cause secondary pollution.China is the big country that produces phosphorus ore, can be used for desulfurization owing to contain a spot of alkaline matter in the phosphorus ore, and impurity is removed and makes phosphorus ore be able to enrichment in the phosphorus ore after the desulfurization, and the slag after the desulfurization can directly add the concentrated sulfuric acid and make general calcium (phosphate fertilizer) direct marketing on the spot.But because it is low (as shimen Hunan ore deposit CO to can be used to the active ingredient carbonate content of desulfurization in the ore deposit
2Content about 17%), a little less than the alkalescence, single tower desulfuration efficiency is low, studies show that the desulfuration efficiency that will reach certain, needs three tower cascade connected use, this pressure drop that just causes system is up to 13000Pa～15000Pa.Adopt the stronger Na of alkalescence
2CO
3Arrange in pairs or groups as desulfurizing agent with phosphorus ore, both can guarantee desulfuration efficiency, can avoid secondary pollution again, and Na
2CO
3With SO
2Can add alkali regeneration after the reaction.
In the wet type desulfurizing system, the most key equipment is gas absorbing device.Several frequently seen absorption plant is: spray tower, Venturi absorber, packed tower, JBR tower and multiaperture-type tower, each tool pluses and minuses of several towers, be applicable to different occasions, wherein the JBR absorption tower is different from the sharpest edges on other absorption towers and is: distribution of gas is even, the come-up bubble has produced eddy current effect, the liquid jet effect of circulation in having.But following drawback is arranged: 1, because pending gas enters large diameter annular cloth air chamber from the air inlet pipe of little caliber, the gas speed bust that big reducing causes makes annular cloth air chamber become a desirable dust chamber; 2, the pipe that has a finedraw have a power failure, die, when the pH value of absorption liquid is low, the tubule mouth of pipe very easily fouling stops up; 3, it is longer the agitator bar of reactor head to be housed, during operation because the free degree is excessive fragile.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, provide a kind of simple in structure, be difficult for to stop up, operating cost is low, desulfuration efficiency is high, be specially adapted to the double of atm number.
For solving the problems of the technologies described above, the present invention by the following technical solutions.
A kind of double, comprise that a urceolus and two ends at the bottom of being provided with tin are ringent inner core, described inner core be located at the urceolus hypomere and with the urceolus coaxial arrangement, looping gas passage between inner tank theca and the outer tube inner wall, inner core bottom and urceolus have unsettled spacing, and the lower end edge circumferencial direction has a circle lattice-shaped fumarole, the inner core top is provided with inner core and the affixed sealing plate of outer tube inner wall, the first spiral nozzle group is equipped with in described sealing plate lower end, described urceolus has the tangent line air inlet in the sealing plate below, the urceolus epimere is provided with the second spiral nozzle group, the urceolus top is provided with clean exhanst gas outlet, be provided with the vertical sieve tray of band outer circulation downflow weir between described second spiral nozzle group and the inner core top, offer the sieve plate hole on the described vertical sieve tray, top, sieve plate hole is provided with the sieve cover of bottom opening top seal, and sieve cover bottom is provided with sieve cover hole, sieve cover top is provided with the lattice-shaped bar hole, and sieve cover hole is communicated with the urceolus upper strata respectively with the lattice-shaped bar hole.
Described urceolus inside is positioned at second spiral nozzle group top and is provided with the flap demister.
Described urceolus inside is positioned at flap demister top and is provided with demister cleaning shower nozzle.
Described outer circulation downflow weir bottom is provided with the downflow weir drainpipe that is in communication with the outside.
Described outer tube bottom is provided with discharge outlet at the bottom of the tower.
Compared with prior art, advantage of the present invention just is: vertical sieve tray is provided with the sieve cover, the liquid of going into the sieve plate hole from the sieve cover orifice flow of sieve cover bottom is blowed to the lattice-shaped bar hole that sieve covers top by the gas from urceolus lower floor, the grid ejection because the dissection gas of grid is cut into minute bubbles, the bubble of ejection and the liquid on vertical sieve tray upper strata form new bubble level, in the bubbling process, flue gas has obtained sufficient dispersion on the one hand, the contact of gas-liquid and the time of staying increase, sulphur-containing substance in the flue gas can fully be reacted with absorption liquid, improve desulfuration efficiency, liquid is after the bar hole outflow on sieve cover top on the other hand, go into from the sieve cover orifice flow of sieve cover bottom again, make liquid inside and outside the sieve cover, form circulation, obtain well-beaten absorption liquid and can further improve desulfuration efficiency; Above the flap demister, be provided with demister and clean shower nozzle, be convenient to cleaning the flap demister; Urceolus inside is divided into two-layer up and down by vertical sieve tray, can utilize two kinds of desulfurizing agents, independently go out the method for two circulations, in independent desulfurization and dedusting tower, finish whole desulfurization dust-removing technique, two circulations were both independent separately, connect each other again, complement each other, make every kind of desulfurizing agent can both obtain best utilization; By contact, absorption and the reaction of two circulations, the phosphorus ore after the both recyclable enrichment reduces running cost, can guarantee desulfurization dust-removing efficiency again; Advantage such as that double of the present invention has is simple in structure, be difficult for obstruction, reduced investment, operating cost is low, efficient is high and washability is big.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is an A-A cross section view among Fig. 1;
Fig. 3 is a B-B cross section view among Fig. 1.
Each label is represented among the figure:
1, clean exhanst gas outlet 2, demister clean shower nozzle
3, the second spiral nozzle group 4, sieve cover
5, discharge outlet 6, the first spiral nozzle group at the bottom of the tower
7, annular gas passage 8, lattice-shaped fumarole
9, flap demister 10, outer circulation downflow weir
11, lattice-shaped bar hole 12, sieve plate hole
13, sieve cover hole 14, vertical sieve tray
15, downflow weir drainpipe 16, inner core
17, sealing plate 18, air inlet
19, urceolus 20, circular passage
21, circular passage inlet
The specific embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, double of the present invention, comprise that a urceolus 19 and two ends at the bottom of being provided with tin are ringent inner core 16, inner core 16 be located at urceolus 19 hypomeres and with urceolus 19 coaxial arrangement, looping gas passage 7 between inner core 16 outer walls and urceolus 19 inwalls, inner core 16 bottoms and urceolus 19 have unsettled spacing, and the lower end edge circumferencial direction has a circle lattice-shaped fumarole 8, inner core 16 tops are provided with inner core 16 and the affixed sealing plate 17 of urceolus 19 inwalls, the first spiral nozzle group 6 is equipped with in sealing plate 17 lower ends, urceolus 19 has tangent line air inlet 18 in sealing plate 17 belows, urceolus 19 epimeres are provided with the second spiral nozzle group 3, urceolus 19 tops are provided with clean exhanst gas outlet 1, urceolus 19 bottoms are provided with discharge outlet 5 at the bottom of the tower, be provided with the vertical sieve tray 14 of band outer circulation downflow weir 10 between the second spiral nozzle group 3 and inner core 16 tops, outer circulation downflow weir 10 bottoms are provided with the downflow weir drainpipe 15 that is in communication with the outside, vertical sieve tray 14 is divided into urceolus 19 inside two-layer up and down, offer sieve plate hole 12 on the vertical sieve tray 14, sieve plate hole 12 offers 4 in the present embodiment, evenly arrange, each 12 top, sieve plate hole is provided with the sieve cover 4 of a bottom opening top seal, each sieve cover 4 bottom is provided with sieve cover hole 13, sieve cover 4 tops are provided with lattice-shaped bar hole 11, and sieve cover hole 13 is communicated with urceolus 19 upper stratas respectively with lattice-shaped bar hole 11.Urceolus 19 inside are positioned at the second spiral nozzle group, 3 tops and are provided with flap demister 9, and flap demister 9 tops are provided with demister and clean shower nozzle 2, are convenient to flap demister 9 is cleaned.
Operation principle: double of the present invention lower floor is first order circulation, and liquid phase is for connecting continuous phase herein, and gas phase is a decentralized photo, the employing phosphorus ore is a desulfurizing agent, and is opposite with first order circulation, in the circulation of the second level, upper strata, gas phase is a continuous phase, and liquid phase is a decentralized photo, adopts Na
2CO
3Be desulfurizing agent, the whole system pressure drop is controlled at 3000Pa～4000Pa.
When the present invention uses, the phosphorus ore slurry is housed as desulfurizing agent in the urceolus 19, hot flue gas is from the air inlet 18 tangential annular gas passage 7 that import, in this passage, air-flow is around inner core 16 rotations, behind deceleration, current stabilization, contact with absorption liquid and stream under 6 sprays of the first spiral nozzle group, finish absorption for the first time.In this process, when strengthening the spray flux of the first spiral nozzle group 6, annular gas passage 7 can replace the cooling tower in the traditional wet lime technology, flue gas is reduced to below 100 ℃ by about 150 ℃, wash the grit in the flue gas off (dedusting aspect, air-flow in the annular gas passage 7 just is equivalent to be equipped with the wet wall gas wash tower of whirlwind of current stabilization post around the process of inner core 16 rotations), and remove a part of oxysulfide.Gas behind cooling and dedusting, carry drop secretly and continuing operation downwards, during to lattice-shaped fumarole 8 tops, rotation gas acts on the interior liquid level of ring between urceolus 19 and the inner core 16, make liquid level generation waveform pulsation in the ring, and liquid in rotation in the drive tower, absorb maelstrom motion of liquid generation at the bottom of making tower, air-flow is pressed to inner core 16 to liquid in the ring simultaneously, make the liquid level difference of the inner core 16 inside and outside 100～400mm of formation, the air-flow of pulsation passes lattice-shaped fumarole 8 with the speed of 5～20m/s, spray to the absorption liquid in the inner core 16, form bubble on the one hand near lattice-shaped fumarole 8, bubble is upwards tortuous under the buoyancy of water effect, has produced many little eddy motions, under the drive of absorption liquid maelstrom at the bottom of the tower, bubble near liquid level sharply disperses, and breaks rapidly, makes that the interior circulating fluid sedimentation exhalation of JBR layer is more obvious violent; On the other hand, the pulsation of gas, liquid causes the fluid in the inner core 16 to be in turbulence state, and the gas-liquid contact-making surface is increased, and assimilation effect strengthens for the second time.Finish the reacted absorption liquid of Gas-Liquid Absorption by tower at the bottom of discharge outlet 5 be discharged to the phosphorus ore sedimentation basin, in the pond clear liquid on upper strata be pumped in the tower again after fresh phosphorus ore mixes, circular passage inlet 21 through being located at urceolus 19 middle parts enters 20 places, circular passage, contact with flue gas after the first spiral nozzle group 6 sprays into desulfurization and dedusting tower lower floor, so form first order circulation.This cyclic process not only enrichment phosphorus ore but also removed the SO in the flue gas
2, having reduced desulphurization cost, reacted phosphorus ore slurry discharge tower adds the concentrated sulfuric acid and makes the phosphate fertilizer market goods locally.
Through twice reacted gas of Gas-Liquid Absorption in the first order circulation, go upward to vertical sieve tray 14, enter second level cyclic process.Na by 3 ejections of the second spiral nozzle group
2CO
3Fall within on the vertical sieve tray 14, gas enters sieve cover 4 and the absorption liquid haptoreaction that flows out from sieve cover hole, sieve cover 4 lower ends 13 through the sieve plate hole 12 on the vertical sieve tray 14, finish for the third time and absorb, then continue up from the bar hole 11 ejection backs on sieve cover 4 tops, then come in contact reaction with absorption liquid under the spray of the second spiral nozzle group 3, finish the 4th absorption, gas is after discharged outside the tower by clean exhanst gas outlet 1 behind the flap demister 9.The liquid that is higher than outer circulation downflow weir 10 is discharged outside the tower by the downflow weir drainpipe 15 at vertical sieve tray 14 middle parts, is pumped to the second spiral nozzle group 3 after regenerating again and sprays once more, so forms second level circulation.Na is adopted in this circulation
2CO
3Make desulfurizing agent, effect is to guarantee whole technology desulfuration efficiency, and after the desulfurization through first order circulation, dust content and sulfur-bearing rate reduce greatly, thereby the consumption of saving CaO also can improve the colourity of end-product gypsum, also can reduce desulphurization cost.In the bubbling process, flue gas has obtained sufficient dispersion on the one hand, the contact of gas-liquid and the time of staying increase, sulphur-containing substance in the flue gas can fully be reacted with absorption liquid, improve desulfuration efficiency, liquid is after bar hole 11 outflows on sieve cover 4 tops on the other hand, and the sieve cover hole 12 from sieve cover 4 bottoms flows into again, liquid is circulated sieve cover 4 inside and outside formation, obtain well-beaten absorption liquid and can further improve desulfuration efficiency.
The present invention is divided into urceolus 19 inside two-layer up and down by vertical sieve tray 14, can utilize two kinds of desulfurizing agents, independently go out the method for two circulations, in independent desulfurization and dedusting tower, finish whole desulfurization dust-removing technique, two circulations were both independent separately, connect each other again, complement each other, make every kind of desulfurizing agent can both obtain best utilization; By contact, absorption and the reaction of two circulations, both recyclable rich phosphorus ore reduces running cost, can guarantee desulfurization dust-removing efficiency again; Advantage such as that double of the present invention has is simple in structure, be difficult for obstruction, reduced investment, operating cost is low, efficient is high and washability is big.
Claims (6)
1. double, comprise that a urceolus (19) and two ends at the bottom of being provided with tin are ringent inner core (16), described inner core (16) be located at urceolus (19) hypomere and with urceolus (19) coaxial arrangement, looping gas passage (7) between inner core (16) outer wall and urceolus (19) inwall, inner core (16) bottom and urceolus (19) have unsettled spacing, and the lower end edge circumferencial direction has a circle lattice-shaped fumarole (8), inner core (16) top is provided with inner core (16) and the affixed sealing plate (17) of urceolus (19) inwall, the first spiral nozzle group (6) is equipped with in described sealing plate (17) lower end, described urceolus (19) has tangent line air inlet (18) in sealing plate (17) below, urceolus (19) epimere is provided with the second spiral nozzle group (3), urceolus (19) top is provided with clean exhanst gas outlet (1), it is characterized in that being provided with between described second spiral nozzle group (3) and inner core (16) top vertical sieve tray (14) of band outer circulation downflow weir (10), offer sieve plate hole (12) on the described vertical sieve tray (14), top, sieve plate hole (12) is provided with the sieve cover (4) of bottom opening top seal, sieve cover (4) bottom is provided with sieve cover hole (13), sieve cover (4) top is provided with lattice-shaped bar hole (11), and sieve cover hole (13) is communicated with urceolus (19) upper strata respectively with lattice-shaped bar hole (11).
2. according to the described double of claim 1, it is characterized in that described urceolus (19) inside is positioned at the second spiral nozzle group (3) top and is provided with flap demister (9).
3. according to the described double of claim 2, it is characterized in that described urceolus (19) inside is positioned at flap demister (9) top and is provided with demister cleaning shower nozzle (2).
4. according to claim 1 or 2 or 3 described double, it is characterized in that described outer circulation downflow weir (10) bottom is provided with the downflow weir drainpipe (15) that is in communication with the outside.
5. according to claim 1 or 2 or 3 described double, it is characterized in that described urceolus (19) bottom is provided with discharge outlet (5) at the bottom of the tower.
6. according to the described double of claim 4, it is characterized in that described urceolus (19) bottom is provided with discharge outlet (5) at the bottom of the tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100355564A CN100518899C (en) | 2007-08-14 | 2007-08-14 | Double -circulation dust settling and desulfurating tower with vertical screen deck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100355564A CN100518899C (en) | 2007-08-14 | 2007-08-14 | Double -circulation dust settling and desulfurating tower with vertical screen deck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101130153A true CN101130153A (en) | 2008-02-27 |
| CN100518899C CN100518899C (en) | 2009-07-29 |
Family
ID=39127652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100355564A Expired - Fee Related CN100518899C (en) | 2007-08-14 | 2007-08-14 | Double -circulation dust settling and desulfurating tower with vertical screen deck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100518899C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105536492A (en) * | 2015-12-25 | 2016-05-04 | 昆明尔康科技有限公司 | Method for preparing phosphoric ore slurry desulfurizer by ammonium fluoride wastewater |
| CN106118758A (en) * | 2016-08-19 | 2016-11-16 | 四川凯尔丰农业科技有限公司 | A kind of novel gas dust arrester |
| CN107551718A (en) * | 2017-09-27 | 2018-01-09 | 湖州南丰机械制造有限公司 | A kind of concentration casting workshop for being provided with centralized dust-removing system |
| CN111151106A (en) * | 2018-11-07 | 2020-05-15 | 洛阳德明石化设备有限公司 | System for improving gas-liquid separation effect of WGS (WGS) desulfurizing tower and application of system |
| CN111298614A (en) * | 2019-11-28 | 2020-06-19 | 江苏峰业科技环保集团股份有限公司 | Dust-removing and demisting device |
-
2007
- 2007-08-14 CN CNB2007100355564A patent/CN100518899C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105536492A (en) * | 2015-12-25 | 2016-05-04 | 昆明尔康科技有限公司 | Method for preparing phosphoric ore slurry desulfurizer by ammonium fluoride wastewater |
| CN105536492B (en) * | 2015-12-25 | 2019-03-08 | 昆明尔康科技有限公司 | A kind of method that ammonium fluoride waste water prepares phosphate ore pulp desulfurizing agent |
| CN106118758A (en) * | 2016-08-19 | 2016-11-16 | 四川凯尔丰农业科技有限公司 | A kind of novel gas dust arrester |
| CN107551718A (en) * | 2017-09-27 | 2018-01-09 | 湖州南丰机械制造有限公司 | A kind of concentration casting workshop for being provided with centralized dust-removing system |
| CN111151106A (en) * | 2018-11-07 | 2020-05-15 | 洛阳德明石化设备有限公司 | System for improving gas-liquid separation effect of WGS (WGS) desulfurizing tower and application of system |
| CN111298614A (en) * | 2019-11-28 | 2020-06-19 | 江苏峰业科技环保集团股份有限公司 | Dust-removing and demisting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100518899C (en) | 2009-07-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100518898C (en) | Injecting, bubbling ,dust settling, desulfurating and absorbing tower with vertical screen deck | |
| CN100518900C (en) | Pneumatic stirring, injecting, bubbling, desulfurizing and dust removing absorption tower | |
| CN100548447C (en) | A kind of spray column and operation method thereof that is used for flue gas desulfurization | |
| CN101898082B (en) | Device and method for depriving sulfur dioxide in flue gas by using ammonia water | |
| CN100518899C (en) | Double -circulation dust settling and desulfurating tower with vertical screen deck | |
| CN106925090A (en) | Flue gas multiple pollutant minimum discharge ammonia process DDC techniques and device | |
| CN204816213U (en) | High -efficient wet flue gas desulfurization dust removal integrated device | |
| CN100408149C (en) | Phosphorous ore, lime double circulation desulphurization and dust-removing process, and equipment therefor | |
| CN201070572Y (en) | Injecting, bubbling, desulfurating, dust settling and absorbing tower with vertical screen plate | |
| CN202638258U (en) | Desulfurizing tower | |
| CN201070573Y (en) | Double -circulation dust settling and desulfurating tower with vertical screen plate | |
| CN202555164U (en) | Desulfurizing tower with wet-type rotational flow tower plates | |
| CN206621986U (en) | A kind of desulfurization absorption plant | |
| CN102580504A (en) | Novel ammonia desulphurization absorption device | |
| CN106492614A (en) | A kind of wet purification method of acidic flue gas and device | |
| CN202506306U (en) | Novel ammonia process desulfurization absorption device | |
| CN206587581U (en) | A kind of efficient desulfurizing tower | |
| CN201664576U (en) | Apparatus for removing sulfur dioxide in flue gas by ammonia water | |
| CN202322761U (en) | Gas distributor, secondary coal gas scrubber and coal gas purifying device for efficient washing and purifying process of coal gas | |
| CN205868002U (en) | Flue gas desulfurization reaction tower | |
| CN214764526U (en) | Efficient spraying and emulsifying double-effect tower | |
| CN114832587A (en) | Slag flushing water desulfurization system | |
| CN201175637Y (en) | Water curtain spray eliminator | |
| CN210993716U (en) | Flue gas desulfurization device | |
| CN211514059U (en) | Wet-type denitration tower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090729 Termination date: 20120814 |