CN207913504U - A kind of minimum discharge desulphurization and dust removal integrated device - Google Patents
A kind of minimum discharge desulphurization and dust removal integrated device Download PDFInfo
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- CN207913504U CN207913504U CN201721888033.XU CN201721888033U CN207913504U CN 207913504 U CN207913504 U CN 207913504U CN 201721888033 U CN201721888033 U CN 201721888033U CN 207913504 U CN207913504 U CN 207913504U
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Abstract
The utility model discloses a kind of minimum discharge desulphurization and dust removal integrated devices, including：Limestone slurry liquid preparing system, desulfurization Tower System, level-one FGD by spraying mist system, gypsum dehydration system, centrifugation bundled tube high-effective dust-removing demister, the limestone slurry liquid preparing system includes agstone warehouse, lime stone slurrying case, limestone slurry liquid case, the desulfurization Tower System includes tower body, smoke inlet, centrifugation bundled tube dedusting demister, bottom of tower blender, and the level-one FGD by spraying mist system includes primary cycle pump, level-one bidirectional spraying head；The gypsum dehydration system includes bottom of tower slurry discharge pump, calcium plaster liquid case, gypsum slurries dewaterer, and two level spray desulfurization unit is provided on the desulfurization Tower System；The centrifugation bundled tube high-effective dust-removing demister is mounted on the top of two level spray desulfurization unit.The utility model has the characteristics that investment is small, efficient, non-scaling, reliable and stable, equipment life is long, operating cost is low.
Description
Technical field
The utility model is related to flue gas desulfurization and dedusting technical field, specially a kind of minimum discharge desulphurizing and dust-removing integral dress
It sets.
Background technology
Coal is still the main energy sources in China at present, and coal fire discharged pollutant accounts for the major part of atmosphere pollution, is
The major reason of haze, increasingly severe haze is caused to cause serious influence to the production and living of people, present each row is each
The coal-fired flue-gas of industry has all gone up environmental protection facility substantially, but pollution problem is not relieved, and main cause is coal-fired total
Amount constantly increases, and pollutant emission is more and more.So in order to control atmosphere pollution, haze is administered, environmental protection administration requires enterprise
Carry out minimum discharge transformation.Common desulfurization, dedusting minimum discharge technology path are traditional " single cycle wet desulphurization "+" wet
Formula electrostatic precipitator ".Traditional " single cycle wet desulphurization " increases the number of spraying layer on the basis of pervious hollow-spraying-tower
Amount, the problem that generally existing desulfuration efficiency is unstable, system easily blocks, equipment attrition is serious, " wet static dedusting technology " though
It can so realize the minimum discharge of dust, but its high energy consumption, cost of investment is big, easy fouling, internal overhaul trouble, and when flushing need to break
Electricity is stopped transport.Therefore in the implementation process of minimum discharge, a kind of desulfurization efficient, stable, low energy consumption of urgent need, dust collecting process.
Invention content
The purpose of this utility model is to provide a kind of minimum discharge desulphurization and dust removal integrated devices, to solve above-mentioned background
The problem of being proposed in technology.
To achieve the above object, the utility model provides the following technical solutions：A kind of minimum discharge desulphurizing and dust-removing integral
Device, including：Limestone slurry liquid preparing system, desulfurization Tower System, level-one FGD by spraying mist system, gypsum dehydration system；
The limestone slurry liquid preparing system includes agstone warehouse, lime stone slurrying case, limestone slurry liquid case, institute
The agstone warehouse stated, lime stone slurrying case, limestone slurry liquid case are sequentially connected；
The desulfurization Tower System includes tower body, smoke inlet, dedusting demister, bottom of tower blender, tower body middle part
It is provided with smoke inlet, the dedusting demister is arranged in tower body inside upper part, and the bottom of tower blender is arranged at the bottom of tower body
Portion；
The level-one FGD by spraying mist system includes primary cycle pump, level-one bidirectional spraying head, primary cycle pump
Import connect with limestone slurry liquid case, primary cycle pump outlet connect with level-one bidirectional spraying head, the level-one is two-way
Fog-spray nozzle is arranged at the smoke inlet of tower body；
The gypsum dehydration system includes bottom of tower slurry discharge pump, calcium plaster liquid case, gypsum slurries dewaterer, described
The import of bottom of tower slurry discharge pump is connected to tower body bottom, and the outlet of bottom of tower slurry discharge pump is connected to calcium plaster liquid case, described
The supernatant of calcium plaster liquid case limestone slurry liquid case is introduced by pipeline, the lower turbid of calcium plaster liquid case is drawn by discharge pump
Enter to gypsum slurries dewaterer.
Further, two level spray desulfurization unit is provided on the desulfurization Tower System, the two level sprays desulfurization
Unit includes No. two circulating pumps, spray head, and on tower body top, the import of secondary cycle pump is logical for spray head setting
Piping is connected to tower body bottom, and the outlet of secondary cycle pump is connect by pipeline with woods nozzle.
Further, the spray head is provided with two layers, three layers or four layers.
Further, the dedusting demister is centrifugation bundled tube high-effective dust-removing demister.
Further, the bottom of the desulfurization Tower System is provided with oxidation air intake apparatus.
Compared with prior art, the utility model has the beneficial effects that：The utility model is by single column double circulation desulphurization technique
It combines with centrifugation bundled tube high-effective dust-removing demister and can be only achieved minimum discharge effect, because dust is ultralow
Discharge not only relies on demister, also has prodigious relationship, slurry pH value, slurry with the pH value of loop slurry, loop slurry concentration
Liquid concentration is excessive, and the dust of band will be exceeded in drop.Double-cycle process can suitably reduce interior loop slurry pH value, inside follow
The concentration of ring slurries is reduced to 10% or so from traditional handicraft 20%, and after concentration of slurry reduces, equipment, pipeline, the abrasion of nozzle are big
Amplitude reduction, equipment life is longer, and the dust that droplet is taken away is less, to be easier to realize minimum discharge.
The utility model, which has, invests small, efficient, non-scaling, the spy that reliable and stable, equipment life is long, operating cost is low
Point.
Description of the drawings
Fig. 1 is the utility model overall structure diagram.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Referring to Fig. 1, the utility model provides a kind of minimum discharge desulphurization and dust removal integrated device, including：Lime stone
Serum producing system, desulfurization Tower System, level-one FGD by spraying mist system, gypsum dehydration system；
The limestone slurry liquid preparing system includes agstone warehouse, lime stone slurrying case, limestone slurry liquid case, institute
The agstone warehouse stated, lime stone slurrying case, limestone slurry liquid case are sequentially connected；
The desulfurization Tower System includes tower body, smoke inlet, dedusting demister, bottom of tower blender, tower body middle part
It is provided with smoke inlet, the dedusting demister is arranged in tower body inside upper part, and the bottom of tower blender is arranged at the bottom of tower body
Portion；
The level-one FGD by spraying mist system includes primary cycle pump, level-one bidirectional spraying head, primary cycle pump
Import connect with limestone slurry liquid case, primary cycle pump outlet connect with level-one bidirectional spraying head, the level-one is two-way
Fog-spray nozzle is arranged at the smoke inlet of tower body；
The gypsum dehydration system includes bottom of tower slurry discharge pump, calcium plaster liquid case, gypsum slurries dewaterer, described
The import of bottom of tower slurry discharge pump is connected to tower body bottom, and the outlet of bottom of tower slurry discharge pump is connected to calcium plaster liquid case, described
The supernatant of calcium plaster liquid case limestone slurry liquid case is introduced by pipeline, the lower turbid of calcium plaster liquid case is drawn by discharge pump
Enter to gypsum slurries dewaterer.
Further, two level spray desulfurization unit is provided on the desulfurization Tower System, the two level sprays desulfurization
Unit includes No. two circulating pumps, spray head, and on tower body top, the import of secondary cycle pump is logical for spray head setting
Piping is connected to tower body bottom, and the outlet of secondary cycle pump is connect by pipeline with woods nozzle.
Further, the spray head is provided with two layers, three layers or four layers.
Further, the dedusting demister is centrifugation bundled tube high-effective dust-removing demister.
Further, the bottom of the desulfurization Tower System is provided with oxidation air intake apparatus.
Operation principle：First order cycle is that continuously spray is added to lime/stone at desulfurizing tower entrance level-one spray equipment
The loop slurry of limestone flour, while also from the almost the same slurries of desulfurization tower bottom delivery flow to outer circulation case（Pond）, outside
Circulating box（Pond）Interior further oxidation is simultaneously added and gives desulfurizing tower first grade desulfurizing device spray after lime/lime stone powder again, real
It now recycles all the way, also referred to as outer circulation；Flue gas after first grade desulfurizing enters desulfurizing tower two level spray desulfurization unit and carries out two
Grade desulfurization, two level spray desulfurization unit are designed with two layers or three layers or four layers；Flue gas after desulfurization enters desulfurizing tower top
Centrifugation bundled tube high-effective dust-removing demister carry out depth dedusting and demisting, realize flue dust and sulfur dioxide minimum discharge.It is double to follow
Ring technique can be designed and be aoxidized twice, i.e. tower internal oxidition and tower external oxidation is carried out at the same time, and make desulfurization intermediate product calcium sulfite
Oxidation is more abundant, thorough, to keep gypsum dehydration effect more preferable, gypsum CaSO4•2H2The purity higher of O, is more advantageous to gypsum
Comprehensive utilization.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of minimum discharge desulphurization and dust removal integrated device, it is characterised in that：Including：Limestone slurry liquid preparing system, desulfurization
Tower System, level-one FGD by spraying mist system, gypsum dehydration system；
The limestone slurry liquid preparing system includes agstone warehouse, lime stone slurrying case, limestone slurry liquid case, described
Agstone warehouse, lime stone slurrying case, limestone slurry liquid case are sequentially connected；
The desulfurization Tower System includes tower body, smoke inlet, dedusting demister, bottom of tower blender, and the tower body middle and lower part is opened
There are smoke inlet, the dedusting demister to be arranged in tower body inside upper part, the bottom of tower blender is arranged in the bottom of tower body；
The level-one FGD by spraying mist system include primary cycle pump, level-one bidirectional spraying head, the primary cycle pump into
Mouth is connect with limestone slurry liquid case, and the outlet of primary cycle pump is connect with level-one bidirectional spraying head, the level-one bidirectional spraying
Head is arranged at the smoke inlet of tower body；
The gypsum dehydration system includes bottom of tower slurry discharge pump, calcium plaster liquid case, gypsum slurries dewaterer, the bottom of tower
The import of slurry discharge pump is connected to tower body bottom, and the outlet of bottom of tower slurry discharge pump is connected to calcium plaster liquid case, the stone
The supernatant of cream slurry tank is introduced into limestone slurry liquid case by pipeline, and the lower turbid of calcium plaster liquid case is drawn by gypsum discharge pump
Enter to gypsum slurries dewaterer.
2. a kind of minimum discharge desulphurization and dust removal integrated device according to claim 1, it is characterised in that：The desulfurization
Two level spray desulfurization unit is provided on Tower System, two level spray desulfurization unit includes secondary cycle pump, spray head, institute
The spray head setting stated is connected to tower body bottom in tower body top, the import of secondary cycle pump by pipeline, and two level is followed
The outlet of ring pump is connect by pipeline with spray head.
3. a kind of minimum discharge desulphurization and dust removal integrated device according to claim 2, it is characterised in that：The spray
Head is provided with two layers, three layers or four layers.
4. a kind of minimum discharge desulphurization and dust removal integrated device according to claim 1, it is characterised in that：Further,
The dedusting demister is centrifugation bundled tube high-effective dust-removing demister.
5. a kind of minimum discharge desulphurization and dust removal integrated device according to claim 1, it is characterised in that：The desulfurization
The bottom of Tower System is provided with oxidation air intake apparatus.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721888033.XU CN207913504U (en) | 2017-12-29 | 2017-12-29 | A kind of minimum discharge desulphurization and dust removal integrated device |
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| CN201721888033.XU CN207913504U (en) | 2017-12-29 | 2017-12-29 | A kind of minimum discharge desulphurization and dust removal integrated device |
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| CN207913504U true CN207913504U (en) | 2018-09-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111054176A (en) * | 2019-12-16 | 2020-04-24 | 湖南正明环保股份有限公司 | Integrated system and method for dust and white removal of industrial kiln flue gas |
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2017
- 2017-12-29 CN CN201721888033.XU patent/CN207913504U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111054176A (en) * | 2019-12-16 | 2020-04-24 | 湖南正明环保股份有限公司 | Integrated system and method for dust and white removal of industrial kiln flue gas |
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