CN104745764A - Dedusting system and method for improving wet dedusting effect - Google Patents
Dedusting system and method for improving wet dedusting effect Download PDFInfo
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- CN104745764A CN104745764A CN201510180601.XA CN201510180601A CN104745764A CN 104745764 A CN104745764 A CN 104745764A CN 201510180601 A CN201510180601 A CN 201510180601A CN 104745764 A CN104745764 A CN 104745764A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention relates to the technical field of converter dedusting, and especially relates to a dedusting system and a dedusting method used for improving the effect of wet dedusting. According to the system, more than one dedusting dehydration tank body is connected in series behind a blower on the pipe of a wet dedusting system. A cylindrical structure with tapered diameter is arranged in the inlet pipe of the dedusting dehydration tank body. Mist spray guns are respectively arranged in front of the inlet of the cylindrical structure and behind the outlet of the cylindrical structure. The dedusting dehydration tank body is arranged vertically. A cyclone channel, a baffle channel and a filtering dedusting device are arranged in the dedusting dehydration tank body. Flue gas is discharged from a dedusting blower, processed through compression, spraying, speed reduction, cyclone, baffling and filtering, and is discharged to a chimney. According to the invention, the wet dedusting technology is utilized, and investment is low. With the system and the method, fume purification dust content can be reduced to below 30mg/Nm<3>, such that a national standard is met. The system and the method have instructive significance for enterprises having difficulties in changing wet dedusting into dry dedusting.
Description
Technical field
The present invention relates to converter dust-removing technical field, especially relate to a kind of dust-removal system and the method that improve wet dedusting effect.
Background technology
China Steel industry is in the period of structural adjustment and optimization and upgrading, is faced with increasingly serious resources and environment pressure.Along with going from bad to worse of air ambient, increasing of haze sky in all parts of the country, the emission standard of environmental administration to steel industry proposes stricter requirement.These all make steel industry must walk the Sustainable Development Road of resource-conserving, environmental type, therefore, reducing converter dust discharge for alleviating environmental pollution, improving Air quality significant.
At present, once dust collection of converter system mainly contains the dust-removal systems such as wet dedusting (dedusting of OG method), dry method dust, semidrying dedusting.The most converter of China adopts wet dedusting, and newborn enterprise then part adopts dry method dust.
With regard to dry method dust, good dedusting effect, can meet present national requirements (discharge clarifying smoke dustiness 50mg/Nm
3below) but one-time investment is too large, and have higher requirement in ordinary maintenance and maintenance.Dry-dedusting system maintenance of equipment amount is large especially, reduce converter operating rate, mainly electric precipitator fouling, corrosion; Evaporative cooler foulings etc., some factories are even forced to adopt the method for a whole set of dust removal installation for subsequent use to ensure that it can normally run.
Conventional wet dedusting major part is for continuing to use technology when Initial stages for reform and opening-up investment is founded the factory, and smoke discharge amount exceeds standard, and major part discharge clarifying smoke dustiness is at 140mg/Nm
3left and right.Later stage is also difficult to drop to 100mg/Nm through the quantity discharged optimized
3below, can not meet current environmental requirement with conventional wet dust collecting process.But due to the impact of the factors such as difference, the difference of mill construction, the transformation of auxiliary facility in design, existing wet method dedusting system is difficult especially to dry-dedusting system transformation.
For present situation, on wet method dedusting system basis, how to make good use of current equipment potential, improve dust collecting process, make fume emission up to standard, become the problem that equipment management personnel is new.
Some modification scheme sets up dust removal installation at fan inlet place at present.The advantage of this scheme to make fan life extend, and can improve the utilization ratio of blower fan simultaneously; But shortcoming is import sets up dust removal installation, certainly will increase inlet system resistance, cause import negative pressure to reduce, it is excessive that converter mouth has partial fume.
Summary of the invention
The object of the present invention is to provide a kind of dust-removal system and the method that improve wet dedusting effect, discharge clarifying smoke dustiness can not be reached at 50mg/Nm with flue gas after solving the wet dedusting that exists in prior art
3the technical problem of following discharging standards.
The dust-removal system of raising wet dedusting effect provided by the invention, its technical scheme adopted is:
The dedusting dehydration tank body of series connection more than 1 on the pipeline of wet method dedusting system;
Described dedusting dehydration tank body is connected to the blower fan rear of wet method dedusting system by pipeline;
Described dedusting dehydration tank body comprises the inlet duct that dedusting dehydration tank body entrance front connects and the outlet conduit exporting rear connection;
The dedusting be connected with described blower fan dewater tank body inlet duct in the tubular structure of a bore convergent is set; The heavy caliber side of described tubular structure is inlet side, and its shape is identical with the interior cross-sectional shape of inlet duct;
The entrance front of described tubular structure arranges 2-4 group steam fog spray gun, and the outlet rear of tubular structure arranges 0-2 group steam fog spray gun, and the spray direction of steam fog spray gun is identical with flow of flue gas direction or contrary;
Described dedusting dehydration tank body is vertically arrange, inside is provided with eddy flow passage, baffling passage and dust removal by filtration device.
Further, swirler, multiple traverse baffle, silk screen and filter cloth combination dewatering dust is set gradually from the bottom to top in described dedusting dehydration tank body.
Further, the inlet duct cross section of described dedusting dehydration tank body is circular, and internal diameter is 1100mm-1300mm.
Further, described tubular structure is taper cone barrel, and the opening diameter of its small-bore side is 700mm-900mm.
Further, the outlet conduit cross section of described dedusting dehydration tank body is circular, and its internal diameter is 1100mm-1300mm.
Further, the dedusting be connected with described blower fan is dewatered in the inlet duct of tank body, and the inlet side front of described tubular structure arranges 2 groups of steam fog spray guns, and the injection direction of steam fog spray gun is along pipeline axial towards tubular structure direction;
The position of the outlet side rear 1m-1.5m of described tubular structure arranges 1 group of steam fog spray gun, and the injection direction of steam fog spray gun is along pipeline axial towards tubular structure direction.
Further, the pipeline of described wet method dedusting system to be connected two or more dedusting dehydration tank body; A steam fog spray gun contrary with flow of flue gas direction is set in the pipeline between each dedusting dehydration tank body.
A kind of method for dust removal improving wet dedusting effect provided by the invention, comprises the steps:
(1) flue gas is by after wet dedusting, flows out from the exit end of blower fan;
(2) by reducing flue internal diameter, improving the positive pressure of fan outlet, and flue gas assembled and improves flow velocity;
(3) process of spraying for more than 2 times is carried out before gathering to the flue gas of step (2), and 0-2 spraying process is carried out after gathering to the flue gas of step (2), make the globule wrap up soot dust granule;
(4) flue gas processed through step (3) is sent into bigbore dedusting dehydration tank body, reduce flue gas flow rate;
(5) in dedusting dehydration tank body, first eddy flow process is carried out to flue gas, make to be obtained first time sedimentation by the soot dust granule that the globule wraps up; Then make the flue gas after eddy flow process by baffling pipeline, make to be obtained second time sedimentation by the soot dust granule that the globule wraps up; Finally to make by the flue gas of baffling pipeline, by dust removal by filtration device, again to filter soot dust granule; Dedusting dehydration tank body draught control is from the inlet to the outlet between 1500Pa-1800Pa;
(6) flue gas sends into chimney discharge by gas exhaust duct.
Further, the flue gas also comprised after step (5) being processed carries out the step of secondary spraying, eddy flow, baffling, filtration treatment, to improve dust removing effects.
Further, the spray direction of described step (3) is identical with flow of flue gas direction or contrary.
Beneficial effect of the present invention is:
(1) the present invention adopts wet dedusting technology, and for the converter installation of 80T, this drops into required fund less than 600,000, and clarifying smoke dustiness can be made by original 100-150mg/Nm
3be down to 30mg/Nm
3below, national standard is met; Compared to dry method dust, its amount of the fund saved is considerable with the environmental benefit brought.Particularly for founding the factory comparatively early, wet method changes the enterprise of dry method dust difficulty, has the meaning of directiveness.
(2) equipment is simple, energy consumption is low, operate steadily, routine maintenance is easy, workable, can extensively promote.For the converter installation of improved 80T, the periodical repair cycle is 3 months, and each repair time is no more than 3 hours, and does not need to change spare part, only cleans it.
(3) utilize the flue attenuated, flue gas speed-raising is assembled, is conducive to the seizure to soot dust granule; Flue gas enters bigbore dedusting dehydration tank body, reduces flue dust flow velocity, is conducive to the soot dust granule sedimentation of globule parcel.
(4) eddy flow passage makes sea land distribution accelerate, and dirt water mixture is by being blocked formation muddy water during swirl-flow devices, the flue dust after purification continues up to walk, and realizes the udst separation to flue dust air-flow.
(5) baffling passage can increase flue gas turbulence, and promotion flue dust mixes with steam.In air motion process, tiny condensing water droplet constantly collides baffle plate and gathers grows up, and produces centrifugal effect again due to the change repeatedly of direction of motion.The globule is wrapped in soot dust granule and is able to and air separation under the dual function of gravity and inertia.Reduce flue dust pressure and flow velocity, such fume gases will greatly reduce at the soot dust granule entered in air after silk screen and filter cloth combination dewatering dust.
(6) the dedusting dehydration silk screen at tank body top and the design of filter cloth combination dewatering dust similar to silk screen tower process, further stop particulate matter discharge.
(7) dedusting dehydration tank body resistance is from the inlet to the outlet 1500-1800Pa, and smoke catching probability can reach more than 99.5%.
Accompanying drawing explanation
In order to be illustrated more clearly in the specific embodiment of the invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The front view of the dust-removal system of the raising wet dedusting effect that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 be described dedusting dehydration tank body partly cut open figure;
Reference numeral:
1-converter; 2-gasification cooling flue;
3-one-level overflow Venturi meter; 4-secondary overflow Venturi meter;
5-silk screen dehydration washing tower; 6-chimney;
7-water knockout water seal arrangement; 8-dedusting dehydration tank body;
801-dedusting dehydration tank body entrance; 802-swirler;
803-traverse baffle; 804-silk screen and filter cloth;
805-dedusting dehydration tank outlet; 806-muddy water collects part;
807-muddy water discharge line; 9-dedusting fan;
10-gravity dewatering apparatus; 11-first steam fog spray gun;
12-second steam fog spray gun; 13-the 3rd steam fog spray gun;
14-taper cone barrel.
Embodiment
Be clearly and completely described technical scheme of the present invention below in conjunction with accompanying drawing, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In describing the invention, it should be noted that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "left", "right", " vertically ", " level ", " interior ", " outward " they be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.In addition, term " first ", " second ", " the 3rd " only for describing object, and can not be interpreted as instruction or hint relative importance.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, particular case above-mentioned term concrete meaning in the present invention can be understood.
The front view of the dust-removal system of the raising wet dedusting effect that Fig. 1 provides for the embodiment of the present invention; Fig. 2 be described dedusting dehydration tank body partly cut open figure.
Dust-removal system as shown in Figure 1, comprises converter 1, gasification cooling flue 2, one-level overflow Venturi meter 3, secondary overflow Venturi meter 4, silk screen dehydration washing tower 5, chimney 6, water knockout water seal arrangement 7, dedusting dehydration tank body 8, dedusting fan 9, gravity dewatering apparatus 10, first steam fog spray gun 11, second steam fog spray gun 12, the 3rd steam fog spray gun 13 and taper cone barrel 14.
Dedusting dehydration tank body as shown in Figure 2, comprises dedusting dehydration tank body entrance 801, swirler 802, traverse baffle 803, silk screen and filter cloth 804, dedusting dehydration tank outlet 805, muddy water collection part 806 and muddy water discharge line 807.
The present embodiment is for a wet method dedusting system of the 40T converter of certain factory.This system be 2006 according to 40T converter generic configuration, to discharge clarifying smoke dustiness for 150mg/Nm
3, temperature < 65 DEG C standard design.The total head of dedusting fan 9 is 29Kpa, and fan inlet negative pressure 22Kpa, dedusting fan 9 exports malleation 7KPa.
Dedusting fan 9, when not gas recovery, the top hole pressure of dedusting fan 9 only has 2-3KPa, also has about 3KPa pressure reduction to utilize.Therefore, the utilized pressure reduction that dedusting fan 9 exports can be played further, flue gas is processed further, thus reduce dustiness.
Existing wet method dedusting system comprises gasification cooling flue 2, one-level overflow Venturi meter 3, gravity dewatering apparatus 10, secondary overflow Venturi meter 4, the silk screen of connecting successively with converter 1 and to dewater washing tower 5, dedusting fan 9 and chimney 6.
Use the solution of the present invention to after its transformation, export rear at the dedusting fan 9 of above-mentioned wet method dedusting system and to connect 1 dedusting dehydration tank body 8.
Described dedusting dehydration tank body 8 comprises inlet duct that the tank body entrance 801 that to dewater with dedusting is connected and to dewater the outlet conduit that tank outlet 805 is connected with dedusting; The present embodiment adopts the pipeline of diameter 1200mm.
One taper cone barrel 14 is set in described inlet duct; Be inlet side at the bottom of the cylinder of described taper cone barrel 14, its diameter is identical with the internal diameter of inlet duct, is 1200mm; The cylinder top of taper cone barrel is as outlet side, and its diameter is 800mm.
In inlet duct, the entrance front of taper cone barrel 14 arranges the first steam fog spray gun 11 and the second steam fog spray gun 12 vertically, and the outlet rear of taper cone barrel 14 arranges the 3rd steam fog spray gun 13 vertically; The injection direction of described first steam fog spray gun 11 and the second steam fog spray gun 12 is identical with flow of flue gas direction, and the injection direction of the 3rd steam fog spray gun 13 is contrary with flow of flue gas direction.Wherein, the second steam fog spray gun 12 is positioned near at the bottom of the cylinder of taper cone barrel 14; There is the distance of 1m-1.5m on 3rd steam fog spray gun 13 and the cylinder top of taper cone barrel 14, for the present embodiment, be good, can give the speed-raising space of flue gas abundance with the distance of 1.2m, and make the spread of spray of the 3rd steam fog spray gun 14 cover whole flow of flue gas scope.The spacing of adjacent two steam fog spray guns is about 2m-3m, can guarantee the omnibearing spraying of flue gas.
Flue gas enters the inlet duct that internal diameter is 1200mm, carries out assembling and raising speed after discharging from the outlet of dedusting fan 9; After the once spraying of the first steam fog spray gun 11, enter the scope of taper cone barrel 14, assemble and raise speed further, by the second steam fog spray gun 12 and the 3rd steam fog spray gun 13, twice injection is carried out to it, make the globule wrap up soot dust granule.
Described dedusting dehydration tank body 8 be vertically arrange, inside is provided with swirler 802, traverse baffle 803 and as the silk screen of dust removal by filtration device and filter cloth 804 from the bottom to top.The lower end sidewall of dedusting dehydration tank body 8 arranges dedusting dehydration tank body entrance 801, entrance and the dedusting of the swirler 802 tank body entrance 801 that dewaters is connected, swirler 802 entirety is circular, become multiple eddy flow passage by multiple with concentric circles arrangement barrier partitions in it, the top of each eddy flow passage is uncovered setting; The internal diameter of dedusting dehydration tank body 8 is more than 4000mm, and (being set to 4300mm in the present embodiment), can reduce the flow velocity of flue gas fast.
The below of swirler 802 arranges the muddy water collection part 806 of back taper, and muddy water is collected part 806 and is linked in water knockout water seal arrangement 7 by muddy water discharge line 807.Traverse baffle 803 is multiple, and tilt to be staggered on the inwall of dedusting dehydration tank body 8 both sides, the lower surface two ends of traverse baffle 803 arrange a tongue respectively, to improve the effect of interception dirt water mixture; The traverse baffle 803 of both sides is some overlapping region in the horizontal direction in the central position of dedusting dehydration tank body 8, can increase the length of baffling passage, and improve the rate of utilization in each region of traverse baffle.Silk screen and filter cloth 804 can also hang several cloth bags, to improve the effect of dust removal by filtration.The top of dedusting dehydration tank body 8 arranges dedusting dehydration tank outlet 805, and dedusting dehydration tank outlet 805 is connected to chimney 6 by one section of 1200mm pipeline.
By the bore design to dedusting dehydration tank body entrance 801, dedusting dehydration tank outlet 805, and the spacing of swirler 802, traverse baffle 803, silk screen and filter cloth 804 and model are combined, controlling dedusting dehydration tank body 8 resistance is from the inlet to the outlet 1500-1800Pa, while guarantee dust removing effects, can effectively utilize the idle positive pressure that dedusting fan 9 exports.
Swirler 802 makes sea land distribution accelerate, and dirt water mixture is by being blocked formation muddy water during swirler 802, the flue dust after purification continues up to walk, and realizes the udst separation to flue dust air-flow.Muddy water is collected rear unification by muddy water collection part 806 and is sent in water knockout water seal arrangement 7 from muddy water discharge line 807, carries out aftertreatment.
Traverse baffle 803 can increase flue gas turbulence, and promotion flue dust mixes with steam.In air motion process, tiny condensing water droplet constantly collides baffle plate and gathers grows up, and produces centrifugal effect again due to the change repeatedly of direction of motion.The globule is wrapped in soot dust granule and is able to and air separation under the dual function of gravity and inertia.Reduce flue dust pressure and flow velocity, such fume gases will greatly reduce at the soot dust granule entered in air after silk screen and filter cloth dehydration dedusting.
The design of silk screen and filter cloth 804 is similar to silk screen tower process, further stops particulate matter to be discharged.
The fume indication sending into chimney 6 from dedusting dehydration tank body 8 is: flue gas flow rate is 9m/s-12m/s, and flue-gas temperature is 50 DEG C-60 DEG C, and flue gas flow is 4000m
3/ h, clarifying smoke dustiness is 29mg/Nm
3, meet the emission standard that country formulates.
For the converter that some output are larger, many cover dedusting dehydration tank bodies 8 (2 cover dedusting dehydration tank bodies 8 of such as connecting) of can connecting, to improve dedusting dehydration dust removing effects further, make its emission compliance.In the scheme of series connection many covers dedusting dehydration tank body 8, in the connecting tube between each dedusting dehydration tank body 8,1 group of steam fog spray gun can be set to improve dust removing effects.Can be identical with flow of flue gas direction or contrary with the spray direction of steam fog spray gun, and the better effects if when spray direction of steam fog spray gun is contrary with flow of flue gas direction.
The present invention adopts wet dedusting technology, and fund input is few, and clarifying smoke dustiness can be made by original 100-150mg/Nm
3be down to 30mg/Nm
3below, national standard is met; For founding the factory comparatively early, wet method changes the enterprise of dry method dust difficulty, has the meaning of directiveness.
This system device is simple, energy consumption is low, operate steadily, routine maintenance is easy, workable, can extensively promote.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (10)
1. improve a dust-removal system for wet dedusting effect, it is characterized in that, the dedusting dehydration tank body of series connection more than 1 on the pipeline of wet method dedusting system;
Described dedusting dehydration tank body is connected to the blower fan rear of wet method dedusting system by pipeline;
Described dedusting dehydration tank body comprises the inlet duct that dedusting dehydration tank body entrance front connects and the outlet conduit exporting rear connection;
The dedusting be connected with described blower fan dewater tank body inlet duct in the tubular structure of a bore convergent is set; The heavy caliber side of described tubular structure is inlet side, and its shape is identical with the interior cross-sectional shape of inlet duct;
The entrance front of described tubular structure arranges 2-4 group steam fog spray gun, and the outlet rear of tubular structure arranges 0-2 group steam fog spray gun, and the spray direction of steam fog spray gun is identical with flow of flue gas direction or contrary;
Described dedusting dehydration tank body is vertically arrange, inside is provided with eddy flow passage, baffling passage and dust removal by filtration device.
2. a kind of dust-removal system improving wet dedusting effect according to claim 1, is characterized in that, sets gradually swirler, multiple traverse baffle, silk screen and filter cloth combination dewatering dust from the bottom to top in described dedusting dehydration tank body.
3. a kind of dust-removal system improving wet dedusting effect according to claim 1, is characterized in that, the inlet duct cross section of described dedusting dehydration tank body is circular, and internal diameter is 1100mm-1300mm.
4. a kind of dust-removal system improving wet dedusting effect according to claim 3, is characterized in that, described tubular structure is taper cone barrel, and the opening diameter of its small-bore side is 700mm-900mm.
5. a kind of dust-removal system improving wet dedusting effect according to claim 1, is characterized in that, the outlet conduit cross section of described dedusting dehydration tank body is circular, and its internal diameter is 1100mm-1300mm.
6. a kind of dust-removal system improving wet dedusting effect according to claim 1, it is characterized in that, the dedusting be connected with described blower fan is dewatered in the inlet duct of tank body, the inlet side front of described tubular structure arranges 2 groups of steam fog spray guns, and the injection direction of steam fog spray gun is along pipeline axial towards tubular structure direction;
The 1m-1.5m place, outlet side rear of described tubular structure arranges 1 group of steam fog spray gun, and the injection direction of steam fog spray gun is along pipeline axial towards tubular structure direction.
7. a kind of dust-removal system improving wet dedusting effect according to claim 1, is characterized in that, two or more that the pipeline of described wet method dedusting system is connected dedusting dehydration tank body; 1 steam fog spray gun contrary with flow of flue gas direction is set in the pipeline between each dedusting dehydration tank body.
8. improve a method for dust removal for wet dedusting effect, it is characterized in that, comprise the steps:
(1) flue gas is by after wet dedusting, flows out from the exit end of blower fan;
(2) by reducing flue internal diameter, improving the positive pressure of fan outlet, and flue gas assembled and improves flow velocity;
(3) 2-4 spraying process is carried out before gathering to the flue gas of step (2), and 0-2 spraying process is carried out after gathering to the flue gas of step (2), make the globule wrap up soot dust granule;
(4) flue gas processed through step (3) is sent into bigbore dedusting dehydration tank body, reduce flue gas flow rate;
(5) in dedusting dehydration tank body, first eddy flow process is carried out to flue gas, make to be obtained first time sedimentation by the soot dust granule that the globule wraps up; Then make the flue gas after eddy flow process by baffling pipeline, make to be obtained second time sedimentation by the soot dust granule that the globule wraps up; Finally to make by the flue gas of baffling pipeline, by dust removal by filtration device, again to filter soot dust granule; Dedusting dehydration tank body draught control is from the inlet to the outlet between 1500Pa-1800Pa;
(6) flue gas sends into chimney discharge by gas exhaust duct.
9. a kind of method for dust removal improving wet dedusting effect according to claim 8, is characterized in that, the flue gas also comprised after step (5) being processed carries out the step of secondary spraying, eddy flow, baffling, filtration treatment, to improve dust removing effects.
10. a kind of method for dust removal improving wet dedusting effect according to claim 8, is characterized in that, the spray direction of described step (3) is identical with flow of flue gas direction or contrary.
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| CN106268180A (en) * | 2016-08-31 | 2017-01-04 | 贵州开磷集团股份有限公司 | A kind of Wet-process Phosphoric Acid Production washing tail gas absorption plant and method |
| CN112206619A (en) * | 2019-07-11 | 2021-01-12 | 山东两棵松环保科技有限公司 | Smoke dust treatment method |
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| CN106268180A (en) * | 2016-08-31 | 2017-01-04 | 贵州开磷集团股份有限公司 | A kind of Wet-process Phosphoric Acid Production washing tail gas absorption plant and method |
| CN112206619A (en) * | 2019-07-11 | 2021-01-12 | 山东两棵松环保科技有限公司 | Smoke dust treatment method |
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