CN102091522A - Method and equipment for removing alkaline waste water of zirconium silicate by smoke and dust - Google Patents
Method and equipment for removing alkaline waste water of zirconium silicate by smoke and dust Download PDFInfo
- Publication number
- CN102091522A CN102091522A CN 201010624370 CN201010624370A CN102091522A CN 102091522 A CN102091522 A CN 102091522A CN 201010624370 CN201010624370 CN 201010624370 CN 201010624370 A CN201010624370 A CN 201010624370A CN 102091522 A CN102091522 A CN 102091522A
- Authority
- CN
- China
- Prior art keywords
- screen cloth
- waste water
- equipment
- alkaline waste
- cavity
- 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.)
- Pending
Links
Images
Landscapes
- Treating Waste Gases (AREA)
Abstract
The invention relates to equipment for removing alkaline waste water of zirconium silicate by acidic smoke, adopting a wet desulfurizer, and comprising perforated cylinders and a spray thrower, wherein the perforated cylinders are concentrically arranged above the cavity body of a water film deduster; the spray thrower is installed above the perforated cylinders; the perforated cylinders are put on a bracket; the other end of the bracket is positioned at the bottom of the cavity body of the water film deduster; and both the perforated cylinders and the bracket are fixed to the inner wall of the cavity body by a stabilizing frame. Alkaline waste water is input into the spray thrower of the wet desulfurizer and sprayed by a nozzle to form smog in the cavity body; and acid waste water enters the cavity body through a smoke inlet along the tangential direction, and generates neutralization with the alkaline waste water. In the invention, waste is treated by waste water, thus saving large funds and manpower, effectively solving the pollution of environment caused by the two wastes of strong acidity and strong basicity, and especially solving the problem of waste water treatment of zirconium silicate pertinently.
Description
Technical field
The present invention relates to handle the method and apparatus of zirconium silicate alkaline waste water, particularly relate to a kind of method and apparatus that utilizes the flue gas flue dust to eliminate the zirconium silicate alkaline waste water.
Background technology
Zirconium and compound thereof are used more and more wider in national defence, civilian goods, particularly aspect structural ceramics and function ceramics, relate to fields such as machinery, electronics, the energy.
The production technology of zirconium oxychloride (zirconia), a sour alkaline process are the methods that generally adopts both at home and abroad, and the fluidizing chlorination method is comparatively advanced in the world zircon decomposition method.The application prospect of zirconium oxychloride (zirconia) product in Ni-MH power cell negative material (hydrogen storage material AB2), fuel cell (particularly high temperature solid oxide fuel cell), battery separator paper is very extensive.The development at home of zirconium and compound thereof is not very fast, and still, the zirconium silicate alkaline waste water of its generation but brings many difficult problems to environmental protection.
Produce in strong basicity (PH=12--13) waste water that produces behind the zirconium oxychloride and contain more zirconium silicate etc.Present treatment process is very simple behind regulating reservoir, enters the flocculation basin precipitation, enters tube settler again.But the more water body of handling in tentatively coming out from high silicate alkaline waste water of aqueous suspension that goes out still turns white, the alumen ustum that occurs at flocculation basin is little and be difficult to sedimentation, former water ph value is adjusted to 9 and has just formed similar jelly when following under the situation that does not add any other medicament (this jelly should be an orthosilicic acid when doing flocculation sediment, directly sedimentation does not add the basic sedimentation of PAC, PAM again and does not get off; Or dilution adds PAC again, the PAM effect still is very poor after stirring energetically earlier behind the formation jelly.) the present all kinds of experiment informations that spread out of of laboratory, also its alkalescence is difficult to accomplish both simple and easy to do, be fit to the processing scheme of industrially scalable operation again.
Meanwhile, along with the raising of industrialized level, the consumption of the energy is also sharply risen.Coal occupies important ratio in the energy resource structure of China.Can produce the material of contaminated environment such as a large amount of flue dust and sulfur dioxide during coal combustion.Sulfur dioxide is the arch-criminal who causes acid rain.Therefore, country is more and more stricter to the control of the emission level of flue dust and sulfur dioxide about rules, as the nearest National People's Congress Air Pollution Prevention Law of formulation in 1987 is revised, amended law is emphasized coal washing, is used clean fuel, cogeneration etc., press for simultaneously gas fume after burning is carried out post processing, make it to satisfy the discharge standard of relevant rules and regulations.Be rich in the acidic oxidation biology, as titanium dioxide two sulphur, the flue dust of nitrogen peroxide etc. is discharged to and runs into steam generation sulfuric acid in the atmosphere, sulfurous acid, and nitric acid forms acid rain, and is very harmful.
Acid-bearing wastewater and to contain alkali waste water be two kinds of typical industrial wastewaters, acid waste water has contains inorganic acid (as sulfuric acid, nitric acid, hydrochloric acid etc.), and what have contains organic acid (as acetic acid, formic acid, citric acid etc.).Contain alkaline matter in the alkaline waste water, as caustic soda, sodium carbonate, vulcanized sodium, Ammonia etc.
When the mass fraction of acid in the waste water during greater than 3%-5%, be called acid pickle, when the mass fraction of alkali in the waste water during, be called spent lye greater than 1%-3%.When the mass fraction of acid in the waste water is called acid waste water and alkaline waste water during less than 1%-3% less than the mass fraction of 3%-5% or alkali.Acidic and alkaline waste water can be divided into following a few class by pH value:
Strongly acid wastewater PH＜4.5, faintly acid waste water PH=4.5-6.5
Middle wastewater PH=6.5-8.5 alkalescent waste water PH=8.5-10.0, strong basicity waste water PH＞10.0.
In sum, two class waste water all need to drop into special fund in the processing scheme of present widespread usage, a large amount of technical forces, and this brings acid test to enterprise undoubtedly,
Summary of the invention
Two class trade wastes of above-mentioned generation highly basic waste water and acid waste gas are current environmental protection difficult problems that faces, in order to solve the problems of the technologies described above, the invention provides a kind of method and apparatus that utilizes acid flue gas flue dust to eliminate the zirconium silicate alkaline waste water, with the wastewater treatment refuse, substantial contribution and manpower have been saved, very efficiently solve the pollution of the strong acid of two class waste materials and strong basicity, particularly solved the waste water handling problem of zirconium silicate targetedly environment.
Dust-removal and desulfurizing equipment provided by the invention, it not only has very high dust-removal and desulfurizing rate, makes discharged flue gas after treatment can satisfy the requirement of relevant rules, has solved the strong basicity of zirconium silicate solution again targetedly.Make it be tending towards neutral, and have easy for installation, cheap and need not additionally to take the advantage in valuable space.
The invention provides a kind of spiral-flow type wet type desulfurizing device, this spiral-flow type wet type desulfurizing device is fixing with one heart by screen cloth tube cylindraceous and be installed in the eddy flow scrubbers that the spray thrower 3 above this screen cloth tube is formed jointly above the cavity of the water dust scrubber of routine.The design's principle is: flue gas is discharged in the gas approach 8 of wet type desulfurizing device, pipe special is input to high silicate alkaline waste water in the endless tube 4 and 6 of wet type desulfurizing device, implements N-process.The structure of spray thrower 3: be separately positioned on the spray equipment on described cavity middle part and top, each layer spray equipment is three rows, and each row is made of 1.5 millimeters of nozzle diameters two nozzles; Perhaps spray thrower 3 is the endless tubes that have same diameter and concentric installation with screen cloth tube 7, and four feed tubes 11 are evenly installed along circumference in the endless tube edge, and the endless tube downside has many nozzles.The mean concentration of sulfur dioxide in flue gas is 150mg/m
3Because the size of soot dust granule only is 0.8 μ m～5 μ m, these particles are suspended in and have formed smog in the devulcanizer, and be 3 μ m～5 μ m by the granular size of the zirconium silicate alkaline waste water of nozzle ejection, when soot dust granule is big or small less than high silicate alkaline waste water spraying granule, soot dust granule is enclosed in around the high silicate alkaline waste water spraying granule, when soot dust granule equals high silicate alkaline waste water granular size, spraying granule and high silicate alkaline waste water particle be adhesive bond one to one, when soot dust granule during greater than high silicate alkaline waste water granular size the high silicate alkaline waste water of soot dust granule spraying granule be enclosed in soot dust granule and be enclosed in, thereby one of high silicate alkaline waste water with soot dust granule is sunk in the circulating water pool to be gone, be stained with the particle generation chemical action of flue dust owing to the skin that only is each droplet in the high silicate alkaline waste water that sprays first, and chemistry and adhesion do not take place in soot dust granule inside, thereby two kinds of waste materials that drop in the circulating water pool still have the possibility that continues to take place adhesive attraction and chemical action.Be exactly to consider this phenomenon thereby carry out repeatedly cyclic spray in our design, and at smoke outlet liquid collecting be housed also and drip device and make moisture-free in the flue gas that is discharged to outside the devulcanizer.(as shown in Figure 1).
Be fixed on screen cloth tube in the water dust scrubber cavity and be with the screen cloth of certain pore size, certain width and length with one heart the multilayer spooling multilayer circular screen mesh that becomes cylindric and mix certain pore size in its bottom constitute.The length and the width that constitute the screen cloth of side are decided by the smoke discharge amount of boiler, generally its length should be able to make the side number of plies of final screen cloth tube be about the 5-30 layer, be preferably the 12-20 layer, the cylinder external diameter is about 0.7-0.8 of cavity internal diameter preferably, its width (being the height of screen cloth tube) accounts for the 1/4-1/2 of whole water dust scrubber height, is preferably about 1/3.Highly too big, will reduce following dedusting space, make the flue gas of rich dust enter the screen cloth tube, result in blockage, and also to have certain desulfurization be neutralizing effect in following dedusting space, reduce this space excessively and can reduce desulfurized effect equally; Highly too little meeting reduces the contact area with flue gas, thereby reduces sulfur limitation effect.
Constituting the screen cloth of screen cloth tube side and bottom surface can be respectively make with any high temperature resistant, corrosion-resistant material (as stainless steel).Their aperture can be identical or different, generally is respectively 3.6mm.If the aperture is too little, then the dust in the flue gas can stop up mesh, if the aperture is too big, then flue gas passes speeding up of this screen cloth tube, and sulfur limitation effect can descend.
The screen cloth that constitutes screen cloth tube side and bottom surface can be made with the twine of certain diameter respectively.Manufacturing cost and corrosion resistance factor are mainly considered in the selection of mesh wire diameter.Diameter is big more, and the price of screen cloth is high more, and the manufacturing cost of eddy flow scrubber is also just high more; Diameter is too little, can shorten the service life of eddy flow scrubber owing to corrode.The diameter of twine is generally 0.5-1.5mm.
Below the screen cloth tube, be placed with the support of making by high temperature resistant, resistant material (as stainless steel), the screen cloth tube be placed on this support above, and be fixed on the inwall of deduster cavity with the side of steady rest with the screen cloth tube.The other end of described support places the bottom of deduster cavity and is fixed in steady rest on the inwall of deduster cavity.The height of this support depends on the height of water dust scrubber itself.Support is too high, and the bottom position of eddy flow scrubber (being the setting height(from bottom) of screen cloth tube) will raise, and causes the height of screen cloth tube to descend, thereby reduces sulfur removal effectiveness, support too low meeting reducing dedusting space.
Eddy flow scrubber in dust-removal and desulfurizing equipment of the present invention also comprises the spray thrower 3 that is positioned at above the screen cloth tube.The spray thrower of patent of the present invention can spray to the zirconium silicate alkaline waste water in the screen cloth tube, also liquid collecting has been installed drips device 5 being positioned at smoke outlet in this dust-removal and desulfurizing equipment.This liquid collecting is dripped device 5 and can be made up of multilayer (normally 4-5 layer) screen cloth high temperature resistant, that resistant material (as stainless steel) is made.The aperture of described screen cloth is generally 0.5-6mm.Purpose is, further lowers the composition of water in the useless flue gas after the desulfurization, so as not to steam again with flue gas in the remaining acid particles formation acid rain that reacts, be discharged in the atmosphere.
During use, flue gas tangentially enters dust-removal and desulfurizing equipment of the present invention by water dust scrubber bottom gas approach 8, and flue gas rotates rising in cavity.Under action of centrifugal force, grit is thrown on the cavity wall and is adhered to concurrent biochemical effect by zirconium silicate alkaline waste water liquid film, to go out aqueous suspension more just because of reason is tentatively come out from the zirconium silicate alkaline waste water from original production factory and office, formed the alkaline waste liquor of similar jelly, its colloidal nature by the way:
Air μ=17.9 * 10
-6Pas, v=14.8 * 10
-6M/s
Water μ=1.01 * 10
-3Pas, v=1.01 * 10
-6M/s
Zirconium silicate alkaline waste water μ=1.33Pas, v=1.19 * 10
-4M/s
In sum, the zirconium silicate alkaline waste water is as the medium of smoke treatment, water wherein, and zirconium silicate solution has certain colloid adhesive attraction, the interaction energy of adhesion make acidic oxide in the flue dust and zirconium silicate prolong and chemical action takes place more completely and all play a positive role.It also is the reason place that design has screen cloth among the present invention.
Trickle grit and sulfur dioxide advance people's eddy flow scrubber with flue gas.Screen cloth from level to level is housed in the scrubber, and gas enters the screen cloth tube from the side of screen cloth tube, and screen cloth tube top is provided with spray thrower.Beyond the atomised part of the zirconium silicate alkaline waste water of spray thrower ejection and the reaction of Acidity of Aikalinity particle, some forms current, is sprinkled upon and forms uniform vacuole on the screen cloth.Under the effect of air-flow, the vacuole on the screen cloth is " boiling shape ", and has a large amount of bubbles to form, and breaks thereupon, forms drop with a spot of liquid.Because the capture process of screen cloth is the synergy of twine, liquid film, drop, so fine particle and gaseous contaminant are had higher trapping ability.In addition, because gas all passes liquid film, so the solution-air contact is quite abundant on the twine face.With alkaline waste liquor generation neutralization reaction, in sum, neutralization reaction has taken place in spray thrower zone and zirconium silicate fog in the grit in the gas and the overwhelming majority of sulfur dioxide, and another part with zirconium silicate solution neutralization reaction has taken place and discharged by wastewater outlet 9 at last on the twine face.Enter liquid collecting at the treated flue gas of eddy flow scrubber and drip eddy flow plate demister (a kind of corrosion resistant plate of angled placement in the device, not expression among the figure), gas-water divide to be separated, and the flue gas after moisture separates rises to liquid collecting and drips multilayer screen cloth in the device, further removes moisture.Flue gas after being purified enters chimney from top, row people atmosphere.
Description of drawings
Fig. 1 is the profile of spiral-flow type wet type desulfurizing device of the present invention;
Fig. 2 is the cross-sectional view of spiral-flow type wet type desulfurizing device of the present invention along the B-B line;
Fig. 3 is the cross-sectional view of spiral-flow type wet type desulfurizing device of the present invention along the A-A line.
The specific embodiment
Be further detailed below in conjunction with the better example of accompanying drawing patent of the present invention.
As shown in Figure 1, flue gas enters water dust scrubber by gas approach 8, and rotation is risen in cavity, and bigger grit is thrown on the internal chamber wall and zirconium silicate alkaline waste water generation chemical action.Discharge from wastewater outlet 9.Trickle grit and sulfur dioxide with flue gas enter by support 1 and steady rest 2 fixing with the concentric screen cloth letter 7 of cavity in.Screen cloth from level to level is housed in the screen cloth tube 7, and gas advances people's screen cloth tube from the side of screen cloth tube 7, and the top of screen cloth tube 7 is provided with the spray thrower 3 (seeing accompanying drawing 3) of band pipe 4 and 6.Described spray thrower 3 is the endless tubes that have same diameter and concentric installation with the screen cloth tube, and the bottom of endless tube has many mouth sprays.Provide the zirconium silicate alkaline waste water by four feed tube 11 (see figure 3)s to spray thrower 3, make the zirconium silicate alkaline waste water of each mouth spray ejection have uniform pressure.The zirconium silicate alkaline waste water stream of spray thrower 3 ejections forms uniform vacuole on screen cloth.Under the effect of air-flow, the vacuole on the screen cloth is " boiling shape ", and has a large amount of bubbles to form, and breaks thereupon, forms drop with a spot of zirconium silicate alkaline waste water.Grit in the gas and sulfur dioxide are discharged by the outlet of the high silicate alkaline waste water after the neutralization at the bottom of the chamber after by the liquid film absorption reaction.Liquid collecting is housed above the eddy flow scrubber drips device 5, liquid collecting is dripped device and is filtered contained moisture in the treated gas, and air-water is separated, and flue gas after being purified enters chimney from the exhanst gas outlet 10 on top, enters atmosphere.
Embodiment 1
The test of eddy flow scrubber on boiler
Under standard condition,, use US-built Thermo Model 40 flue gas analysers to measure sulfur dioxide concentration respectively at water dust scrubber smoke air inlet place with at the water dust scrubber smoke outlet that uses the eddy flow scrubber.Silicate alkaline waste water with two kinds of variable concentrations is tested, and the result is as shown in table 1:
Table 1
As seen from Table 1, install additional after the eddy flow scrubber, when the initial pH value of zirconium silicate alkaline waste water was 9, the clearance of sulfur dioxide was 72.6%, and initial pH value is 11 o'clock, and the clearance of sulfur dioxide is 94.7%.Simultaneously, the alkalescence of zirconium silicate alkaline waste water drops to 7.
Utilize existing boiler water film dust-remover to install the spiral-flow type wet type desulphurization device that the eddy flow scrubber forms patent of the present invention additional. It has very high dust-removal and desulfurizing rate, makes after treatment the flue gas of discharging can satisfy the requirement of regulations, and has easy for installation, cheap and need not additionally to take the advantage in valuable space.
Claims (11)
1. equipment that utilizes acidic flue gas to eliminate the zirconium silicate alkaline waste water, adopt the wet type desulfurizing device, it is characterized in that, described wet type desulfurizing device is an eddy flow scrubber, be included in the screen cloth tube (7) that the cavity top of water dust scrubber is provided with one heart and be installed in spray thrower (3) above this screen cloth tube, described screen cloth tube (7) is placed on the support (1), the other end of support (1) is positioned at the bottom of described water dust scrubber cavity, and described screen cloth tube (7) and support (1) are fixed on the inwall of cavity by steady rest (2).
2. equipment as claimed in claim 1 is characterized in that, described spray thrower (3) comprises the middle part that is separately positioned on described water dust scrubber cavity and the two-layer spray equipment on top, and every layer of spray equipment has three rows, and every row is made up of two nozzles.
3. equipment as claimed in claim 1 is characterized in that, described spray thrower (3) is the endless tube that has same diameter and concentric installation with screen cloth tube (7), and four feed tubes (11) are evenly installed along circumference in the endless tube edge, and the endless tube downside has many nozzles.
4. as the arbitrary described equipment of claim 1-3, it is characterized in that described screen cloth tube (7) is to become multilayer circular screen mesh cylindric and that mix certain pore size in its bottom to constitute the concentric multilayer spooling of the screen cloth of certain pore size, certain width and length.
5. equipment as claimed in claim 4 is characterized in that, the number of plies of described screen cloth tube (7) side is the 5-30 layer, and its external diameter is the 0.7-0.8 of described water dust scrubber cavity internal diameter, and it highly is the 1/4-1/2 of described water dust scrubber height.
6. equipment as claimed in claim 5 is characterized in that, the screen cloth that constitutes described screen cloth tube (7) side and bottom surface all adopts the corrosion-and high-temp-resistant material, and the aperture is 3.6 millimeters.
7. equipment as claimed in claim 6 is characterized in that, the screen cloth that constitutes described screen cloth tube (7) side and bottom surface all adopts the twine of diameter 0.5-1.5 millimeter to make.
8. as the arbitrary described equipment of claim 1-3, it is characterized in that the exhanst gas outlet (10) of described wet type desulfurizing device top is located to install a liquid collecting and dripped device (5).
9. as the arbitrary described equipment of claim 1-3, it is characterized in that acidic flue gas enters cavity by the gas approach (8) of described water dust scrubber bottom along tangential method.
10. as the described method that equipment adopted of utilizing acidic flue gas to eliminate the zirconium silicate alkaline waste water of claim 1-9, it is characterized in that, in the spray thrower (3) with described alkaline waste water input wet type desulfurizing device,, in cavity, form smog by the nozzle ejection; Acid waste water enters cavity by described gas approach (8) along tangential method, with alkaline waste water generation neutralization.
11. method as claimed in claim 10, it is characterized in that, acidic flue gas enters in the cavity of described water dust scrubber, acidic flue gas enters screen cloth tube (7) from the side of screen cloth tube (7), some forms current the alkaline waste water of spray thrower (3) ejection, be sprinkled upon and form uniform vacuole on the screen cloth, acidic flue gas and alkaline waste water neutralization reaction on screen cloth is discharged by wastewater outlet (9) at last.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010624370 CN102091522A (en) | 2010-12-31 | 2010-12-31 | Method and equipment for removing alkaline waste water of zirconium silicate by smoke and dust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010624370 CN102091522A (en) | 2010-12-31 | 2010-12-31 | Method and equipment for removing alkaline waste water of zirconium silicate by smoke and dust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102091522A true CN102091522A (en) | 2011-06-15 |
Family
ID=44124898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010624370 Pending CN102091522A (en) | 2010-12-31 | 2010-12-31 | Method and equipment for removing alkaline waste water of zirconium silicate by smoke and dust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102091522A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102343213A (en) * | 2011-10-13 | 2012-02-08 | 中冶赛迪工程技术股份有限公司 | Process and system for treating strong brine with flue gas desulfurizing device |
| CN105521674A (en) * | 2014-10-21 | 2016-04-27 | 富鼎电子科技(嘉善)有限公司 | Purification device |
| CN112774320A (en) * | 2021-02-07 | 2021-05-11 | 华南理工大学 | Device and method for preventing secondary carrying and dedusting and demisting of rotational flow plate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2048782U (en) * | 1989-06-16 | 1989-12-06 | 李戬房 | Dust filter with hemp and stone screen and water film |
| CN2294098Y (en) * | 1997-04-24 | 1998-10-14 | 上海市环境保护科学研究院 | Cross-flow, gas washing and water film type dust removing and desulfurizing equipment |
| CN101632894A (en) * | 2008-07-22 | 2010-01-27 | 董明新 | Semidry type smoke desulphurization method and device |
-
2010
- 2010-12-31 CN CN 201010624370 patent/CN102091522A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2048782U (en) * | 1989-06-16 | 1989-12-06 | 李戬房 | Dust filter with hemp and stone screen and water film |
| CN2294098Y (en) * | 1997-04-24 | 1998-10-14 | 上海市环境保护科学研究院 | Cross-flow, gas washing and water film type dust removing and desulfurizing equipment |
| CN101632894A (en) * | 2008-07-22 | 2010-01-27 | 董明新 | Semidry type smoke desulphurization method and device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102343213A (en) * | 2011-10-13 | 2012-02-08 | 中冶赛迪工程技术股份有限公司 | Process and system for treating strong brine with flue gas desulfurizing device |
| CN102343213B (en) * | 2011-10-13 | 2013-07-03 | 中冶赛迪工程技术股份有限公司 | Process and system for treating strong brine with flue gas desulfurizing device |
| CN105521674A (en) * | 2014-10-21 | 2016-04-27 | 富鼎电子科技(嘉善)有限公司 | Purification device |
| CN112774320A (en) * | 2021-02-07 | 2021-05-11 | 华南理工大学 | Device and method for preventing secondary carrying and dedusting and demisting of rotational flow plate |
| CN112774320B (en) * | 2021-02-07 | 2024-04-05 | 华南理工大学 | Secondary carrying prevention cyclone plate dust and mist removal device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2459655C2 (en) | Device and method of smoke fumes | |
| CN105727720A (en) | Spiral bubble flue gas cleaning device | |
| CN108671723B (en) | Ultrasonic synchronous desulfurization and dust removal integrated device | |
| CN103223279A (en) | Aeration-type air purifying device | |
| CN206198997U (en) | Flue gas desulfurization denitration dust-removing system | |
| CN105214465A (en) | The apparatus and method of integration wet process of FGD dedusting | |
| CN105056679A (en) | Method and device for removing PM2.5 (particulate matter) in WFGD (wet flue gas desulfurization) process | |
| CN204051377U (en) | Effective integrated soda acid and organic exhaust gas adsorption device | |
| CN102580509A (en) | Two-level absorption desulfuration denitration demercuration particulate matter 2.5 (PM2.5) removal washing tower | |
| CN101007238A (en) | Radial grading desulfurization dust-removing device | |
| CN105195004A (en) | Combined desulphurization and dedusting apparatus and method for wet flue gas | |
| CN209501361U (en) | Novel energy-conserving Complexing Iron desulphurization plant | |
| CN207871896U (en) | A kind of intermediate pollution equipment for treating industrial waste gas | |
| CN102091522A (en) | Method and equipment for removing alkaline waste water of zirconium silicate by smoke and dust | |
| CN101002996A (en) | Equipment and method for comprehensive treatment of sulfur-containing flue-gas | |
| CN103990374A (en) | Novel desulfurization, denitrification, decarburization and dust removal purification combined device for coal-fired flue gas | |
| CN108854499A (en) | A kind of furfural dregs boiler smoke magnesia FGD purification device | |
| CN205796820U (en) | A kind of desulfurating dust-removing equipment | |
| CN102485321A (en) | Industrial fire coal boiler smoke desulphurization dedusting device | |
| CN201880472U (en) | Flue gas desulfurizing and dedusting device for industrial coal-fired boiler | |
| CN2838732Y (en) | Enhanced water bathing desulfurization dust cleaner | |
| CN202700342U (en) | Two-stage adsorption washing tower for desulfuration, denitration, demercuration and removal of particulate matter (PM) 2.5 | |
| CN205055798U (en) | Modular wet -type flue gas desulfurization dust collector | |
| CN206483575U (en) | The Wet type electric dust-removing device of fine particle can be removed | |
| CN205055799U (en) | Device that integration wet flue gas desulfurization removed dust |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110615 |