CN220779710U - Solid dry desulfurization and dust removal integrated device - Google Patents
Solid dry desulfurization and dust removal integrated device Download PDFInfo
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- CN220779710U CN220779710U CN202322654913.2U CN202322654913U CN220779710U CN 220779710 U CN220779710 U CN 220779710U CN 202322654913 U CN202322654913 U CN 202322654913U CN 220779710 U CN220779710 U CN 220779710U
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- dust removal
- desulfurization
- air
- flue gas
- air inlet
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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 101
- 230000023556 desulfurization Effects 0.000 title claims abstract description 101
- 239000000428 dust Substances 0.000 title claims abstract description 79
- 239000007787 solid Substances 0.000 title claims abstract description 30
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 90
- 239000003546 flue gas Substances 0.000 claims abstract description 90
- 238000009826 distribution Methods 0.000 claims abstract description 30
- 241000736911 Turritella communis Species 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 3
- 230000003009 desulfurizing effect Effects 0.000 description 27
- 239000003795 chemical substances by application Substances 0.000 description 21
- 238000000034 method Methods 0.000 description 13
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 6
- 238000007599 discharging Methods 0.000 description 6
- 229910052602 gypsum Inorganic materials 0.000 description 5
- 239000010440 gypsum Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 229910052791 calcium Inorganic materials 0.000 description 4
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000003795 desorption Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000004571 lime Substances 0.000 description 4
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 4
- 239000000347 magnesium hydroxide Substances 0.000 description 4
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 239000010963 304 stainless steel Substances 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 3
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 3
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 235000011941 Tilia x europaea Nutrition 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000011152 fibreglass Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 description 1
- 235000010261 calcium sulphite Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 229910052815 sulfur oxide Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a solid dry desulfurization and dust removal integrated device, which comprises a tower body shell for treating flue gas, wherein an air inlet channel horizontally arranged and an air outlet channel horizontally arranged at two sides of the air inlet channel are arranged in the tower body shell, two desulfurization and dust removal layers are arranged between the air inlet channel and the air outlet channel, and a herringbone down-draught plate is fixedly arranged at the tail end of the air inlet channel, so that the flue gas entering the air inlet channel vertically passes through the desulfurization and dust removal layers to the air outlet channel in left and right directions. The solid dry desulfurization and dust removal integrated device provided by the utility model vertically passes through the desulfurization and dust removal layer in the left and right directions under the action of the herringbone down-draft plate after flue gas to be treated enters the air inlet duct in the tower, and compared with a device passing through the desulfurization and dust removal layer in a single direction, the solid dry desulfurization and dust removal integrated device has the advantages that the air distribution area is doubled, the occupied area is reduced, the flue gas resistance is reduced, and the production cost is reduced under the condition that the flue gas treatment amount is the same.
Description
Technical Field
The utility model relates to the technical field of flue gas desulfurization and dust removal equipment, in particular to a solid dry desulfurization and dust removal integrated device.
Background
The common wet desulfurization methods such as limestone-gypsum method, sodium hydroxide-lime slurry or magnesium hydroxide method for thermal power plant desulfurization are complex, have high manufacturing cost and high running cost, produce wastewater to be treated, and cause other secondary pollution and are troublesome. The method for removing sulfur by spraying calcium carbonate into the circulating fluidized bed boiler is also available, but the treatment effect of the method is poor, and the burden of a bag-type dust remover is increased;
The traditional wet method adopts a double-alkali method of sodium hydroxide and lime, and magnesium hydroxide reacts with SO2 in flue gas to generate calcium sulfite; the traditional dry desulfurization is that calcium carbonate is sprayed into a boiler combustion chamber along with pulverized coal in a circulating fluidized bed boiler for pulverized coal, the calcium carbonate is decomposed to generate calcium oxide, and the calcium oxide and a part of sulfur oxides are generated into calcium sulfate; while the rogowski dry desulfurization simply uses lime or magnesium hydroxide and an oxidation catalyst, wherein the catalyst oxidizes SO2 to SO3, which reacts with lime to calcium sulfate or magnesium hydroxide to magnesium sulfate/magnesium bisulfate, etc.;
the following patent documents related to the present application have been found, and specific disclosures thereof are as follows:
1. Patent document CN204093274U discloses a flue gas desulfurization system, the flue gas desulfurization system includes an absorption tower, a rich liquid preheater, a lean and rich liquid heat exchanger, a desorption tower, a reboiler, a condenser and a steam coupling regeneration device, the absorption tower is connected with the rich liquid inlet of the preheater, the rich liquid outlet of the preheater is connected with the rich liquid inlet of the heat exchanger, the rich liquid outlet of the heat exchanger is connected with the rich liquid inlet of the desorption tower, the steam outlet of the desorption tower is respectively connected with a first steam inlet on the steam coupling regeneration device and a second steam inlet on the condenser, the steam coupling regeneration device is also provided with a fresh primary steam inlet and a regenerated primary steam outlet, the regenerated primary steam outlet is connected with the reboiler, and the reboiler is connected with the desorption tower.
2. Patent document CN203379781U is a flue gas desulfurization tower, comprising a tower body and a tower body inner cavity surrounded by the tower body. The flue gas desulfurization tower is divided into a washing section, an absorption section and a recovery section along the flue gas flow direction, wherein the washing section comprises the following components which are sequentially arranged along the flue gas flow direction: the gas distributor comprises a plurality of guide plates arranged in the gas inlet pipe, a flue gas channel which is independent of each other and extends towards different directions is formed between the guide plates, the flue gas channel is provided with a gas outlet communicated with the inner cavity of the tower, and flue gas enters the inner cavity of the tower from different directions through the flue gas channel. The flue gas desulfurization tower can improve the desulfurization rate of flue gas by adopting the flue gas desulfurization tower in the desulfurization process.
3. Patent document CN203737103U discloses a flue gas desulfurization device, which can reduce material adhesion and can improve desulfurization efficiency. The flue gas desulfurization device mainly changes concentrated water supply into scattered water supply, a flue gas inlet flue of a desulfurization reaction tower is provided with a first nozzle for conveying water to the flue gas inlet flue, the first nozzle is connected with a first water inlet pipe, the first water inlet pipe is provided with an electromagnetic valve, a fan air supply pipeline is provided with a second nozzle which faces the inside of the fan air supply pipeline, and the second nozzle is connected with a second water inlet pipe which is provided with an electromagnetic valve. The water is added from one place to a plurality of places, so that the water content of the material is more uniform, and the water content of the material is uniform under the condition of ensuring the total water amount required by the desulfurization reaction. The materials are not easy to adhere, and the desulfurization effect is better.
4. The patent document CN112870961B relates to the field of flue gas treatment, in particular to a fixed bed desulfurization reaction device and a use method thereof. The fixed bed desulfurization reaction device comprises a desulfurization bin, wherein the interior of the desulfurization bin is divided into a plurality of desulfurization chambers which are connected in series in the horizontal direction by inter-chamber grid guide partition walls; the top of the desulfurization bin is provided with a desulfurizing agent feeding section, the desulfurizing agent feeding section is provided with a plurality of desulfurizing agent feeding sites, each desulfurizing chamber at least corresponds to one desulfurizing agent feeding site, and each desulfurizing agent feeding site corresponds to one butterfly-shaped buffer guide device and one blanking stabilizer; the two ends of the horizontal direction of the desulfurization bin are respectively provided with a flue gas inlet and a flue gas outlet, the flue gas inlet and the flue gas outlet are of a neck expansion structure, and the joint of the neck expansion structure and the desulfurization bin is provided with an inlet and outlet grid guide partition wall. The method mainly aims at overcoming the defects of low smoothness of the adding and discharging materials, low utilization efficiency of the desulfurizing agent, high resistance consumption of the device, poor dust removal performance and the like in the prior art.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art and provides the solid dry flue gas desulfurization and dust removal integrated device which has a simple structure and can remove dust deeply during desulfurization.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
The utility model provides a integrative device of solid dry desulfurization dust removal, includes the tower body shell that is used for handling the flue gas, have the inlet channel of horizontal arrangement and the air outlet channel of horizontal arrangement in the inlet channel both sides in the tower body shell set up the twice desulfurization dust removal layer between the inlet channel with the air outlet channel the fixed herringbone down wind board that sets up in the inlet channel end for get into flue gas in the inlet channel divides left and right sides two directions perpendicular to pass desulfurization dust removal layer extremely in the air outlet channel.
Preferably, the integrated device further comprises a stand placed on the ground, the tower housing being mounted on the stand.
Preferably, the front end of the tower body shell is provided with an air inlet, the air inlet is communicated with the air inlet channel, the rear end of the tower body shell is provided with an air outlet, and the air outlet is communicated with the air outlet channel.
Preferably, an air inlet buffer bin is arranged in the area between the air inlet and the air inlet channel on the tower body shell, the air inlet buffer bin is provided with a smoke buffer area, and an air outlet buffer bin is arranged in the area between the air outlet and the air outlet channel on the tower body shell.
Preferably, an air distribution plate is arranged in the tower body shell, the desulfurization and dust removal layer is positioned in the air distribution plate, the air distribution plate comprises an air inlet air distribution plate and an air outlet air distribution plate, the air inlet air distribution plate is positioned at one side close to the air inlet channel, and the air outlet air distribution plate is positioned at one side close to the air outlet channel.
Preferably, a plurality of feed inlets are formed in the top of the tower body shell and located right above the two desulfurization and dust removal layers at equal intervals, the length of each feed inlet is consistent with the thickness of each desulfurization and dust removal layer, and the width of each feed inlet is generally not less than 600mm.
Preferably, a discharge hopper is arranged under each desulfurization and dust removal layer at equal distance, four sides of the discharge hopper are trapezoid, the discharge hopper is provided with a discharge opening, and the discharge opening is controlled by a screw gate valve.
Preferably, manual holes are formed in the lower ends of the air inlet and the air outlet of the tower body shell.
Compared with the prior art, the utility model has the beneficial effects that:
1. The solid dry desulfurization and dust removal integrated device provided by the utility model vertically passes through the desulfurization and dust removal layer in the left and right directions under the action of the herringbone down-draft plate after flue gas to be treated enters the air inlet duct in the tower, and compared with a device passing through the desulfurization and dust removal layer in a single direction, the solid dry desulfurization and dust removal integrated device has the advantages that the air distribution area is doubled, the occupied area is reduced, the flue gas resistance is reduced, and the production cost is reduced under the condition that the flue gas treatment amount is the same.
2. The solid dry flue gas desulfurization and dust removal integrated device provided by the utility model does not generate waste water and waste gas, waste residues are saturated desulfurizing agents, are solid dry gypsum, belong to general waste, and can be used as building materials for secondary use.
Drawings
FIG. 1 is a schematic structural view of an integrated device for desulfurizing and dedusting by a solid dry method;
Fig. 2 is a schematic top view of the internal structure of the solid dry desulfurization and dust removal integrated device;
fig. 3 is a schematic side view structure of a solid dry desulfurization and dust removal integrated device according to the present utility model.
In the figure: 1. a bracket; 2. a tower body shell; 3. an air inlet; 4. an air inlet buffer bin; 5. an air inlet duct; 6. a herringbone air reversing plate; 7. a desulfurization and dust removal layer; 8. air inlet air distribution plates; 9. an air outlet air distribution plate; 10. an air outlet duct; 11. an air outlet buffer bin; 12. an air outlet; 13. a feed inlet; 14. a discharge hopper; 15. a discharge port; 16. and (5) manually drilling.
Detailed Description
The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are included in the protection scope of the present utility model.
Referring to fig. 1-3, a solid dry desulfurization and dust removal integrated device comprises a bracket 1, a tower body shell 2, an air inlet 3, an air inlet buffer bin 4, an air inlet duct 5 horizontally arranged, a herringbone down-draught plate 6, desulfurization and dust removal layers 7 positioned on two sides of the air inlet duct 5, air distribution plates, air outlet ducts 10 positioned on two sides of the air inlet duct 5, an air outlet buffer bin 11, an air outlet 12, a feed inlet 13, a discharge hopper 14 and a discharge opening 15.
The support 1 is arranged on the ground, the tower body shell 2 is fixedly arranged on the support 1, the front end of the tower body shell 2 is provided with an air inlet 3, the rear end of the tower body shell is provided with an air outlet 12, the upper end of the tower body shell is provided with a plurality of feed inlets 13, the lower end of the tower body shell is provided with a corresponding discharge hopper 14, and the lower end of the discharge hopper 14 is provided with a discharge opening 15.
The air distribution plate is divided into an air inlet air distribution plate 8 and an air outlet air distribution plate 9, wherein the air inlet air distribution plate 8 is positioned at one side close to the air inlet duct 5, and the air outlet air distribution plate 9 is positioned at one side close to the air outlet duct 10.
The air inlet 3 is connected with a flue gas pipeline (not shown in the drawing), and flue gas to be treated enters the air inlet 3 of the integrated device from the flue gas pipeline.
The flue gas to be treated enters an air inlet buffer bin 4 between the air inlet 3 and an air inlet duct 5 from the air inlet 3, and the air inlet buffer bin 4 is provided with a flue gas buffer area for buffering and homogenizing the flue gas entering the air inlet 3.
The buffered flue gas to be treated enters the horizontally arranged air inlet duct 5.
The tail end of the horizontally arranged air inlet duct 5 is provided with a herringbone down-draft plate 6.
The flue gas to be treated is blocked by the herringbone down-draft plate 6 at the tail end of the air inlet duct 5, and flows into the desulfurization and dust removal layers 7 which are arranged in parallel on the two sides of the horizontal flue gas duct along the vertical direction respectively, wherein the thickness of the desulfurization and dust removal layers 7 is not less than 2.5 seconds when the flue gas passes through the desulfurization and dust removal layers 7. The flue gas chemically reacts with a calcium-based alkaline desulfurizing agent in the desulfurizing and dedusting layer 7 to generate gypsum (calcium sulfate) and intercept particles in the flue gas to be treated.
An air inlet test and an air outlet test of the desulfurization and dust removal layer 7 are respectively provided with an air distribution plate with round holes, so that flue gas can flow in and out conveniently.
The treated flue gas enters a flue gas outlet duct 10 which is arranged in parallel on the outer side.
The treated flue gas enters a flue gas outlet buffer zone from the two outmost outlet air channels 10 in the desulfurization dust removal tower.
The integrated device air outlet 12 is connected with a flue gas pipeline (not shown in the drawing), and the treated and buffered flue gas enters the flue gas pipeline from the air outlet 12 and is brought into the atmosphere by an induced draft fan.
Further explaining:
Bracket 1: the welding is made of H steel.
Tower shell 2: the shape of the cuboid is made of Q235, 304 stainless steel or glass fiber reinforced plastic with the thickness of 6-10 mm.
And an air inlet 3: the shape of the front smoke receiving air duct is round or rectangular.
Flue gas buffer area: a cavity between the air inlet 3 and the air inlet duct 5.
Air inlet duct 5: the height and the length of the cuboid flue gas air channel horizontally arranged along the flue gas flowing direction in the tower body shell 2 are equal to those of the desulfurization and dust removal layer 7, and the width is not less than the thickness of the desulfurization and dust removal layer 7.
Herringbone down-draft plate 6: the tail part of the air inlet duct 5 is fixedly connected with a herringbone air reversing plate which is arranged to guide untreated flue gas entering the tower body shell 2 in the horizontal direction to two sides of the desulfurization and dust removal layer 7.
Desulfurization and dust removal layer 7: the desulfurization and dust removal layer 7 is filled with a calcium-based alkaline desulfurizing agent, and sulfur dioxide in untreated flue gas reacts with calcium hydroxide to generate calcium sulfate (gypsum), so that the purpose of removing sulfur dioxide is achieved; the desulfurizing agent can intercept the particulates in the untreated flue gas at the same time, so as to achieve the purpose of deeply treating the particulates in the flue gas.
Air inlet air distribution plate 8: is made of Q235, 304 stainless steel or glass reinforced plastic pore plate materials so that untreated flue gas flows into the desulfurization and dust removal layer 7.
Air-out air distribution plate 9: is made of Q235, 304 stainless steel or glass reinforced plastic pore plate materials so that untreated flue gas flows out of the desulfurization and dust removal layer 7. Holes are not punched in 300mm of the upper edge of the air outlet air distribution plate 9, so that short circuit caused by direct discharge of untreated flue gas to the air outlet duct 10 without passing through the desulfurization and dust removal layer 7 due to sinking of the desulfurizing agent is avoided.
Air outlet duct 10: the treated flue gas bidirectionally and vertically flows out of the sulfur removal and dust removal layer 7 and then enters a cavity between the air outlet air distribution plate 9 and the tower body shell 2.
And an air outlet buffer area: and a cavity between the air outlet ports on the left side and the right side of the integrated device and the air outlet 12 of the integrated device.
Air outlet 12: the shape of the rear flue gas pipeline is determined by adopting a round shape or a rectangle shape.
Feed inlet 13: a plurality of feed inlets 13 are formed at equal distance right above the two desulfurization and dust removal layers 7 at the top of the tower body shell 2. The length of the feed inlet 13 is consistent with the thickness of the desulfurization and dust removal layer 7, and the width is generally not less than 600mm.
Discharge hopper 14: the discharging hoppers 14 are arranged under each desulfurization and dust removal layer 7 at equal distance, and four sides of each discharging hopper 14 are trapezoidal.
Discharge port 15: i.e. the outlet of the discharging hopper 14 of the integrated device, the length of the discharging opening 15 is consistent with the thickness of the desulfurization and dust removal layer 7, and the width is generally not less than 600mm. The discharge opening 15 is controlled by a screw gate valve.
Manual hole 16: at the lower ends of the air inlet 3 and the air outlet 12 of the tower body shell 2, artificial holes 16 are arranged. The manual hole 16 has the functions of carrying out internal overhaul and cleaning particles in the air inlet duct 5 of the tower body shell 2 by utilizing the negative pressure feeding machine when the boiler is shut down for overhaul.
And (3) material replacement: the desulfurizing agent in the tower body shell 2 does not have a desulfurizing effect when the desulfurizing agent reaches saturation, and the desulfurizing agent needs to be replaced at the moment. The desulfurizing agent is generally replaced every 6 months. The replacement method is very simple: and (3) opening a screw gate valve of the discharge hopper 14, and automatically discharging the desulfurizing agent out of the desulfurizing tower and loading the desulfurizing agent out of the desulfurizing tower.
Feeding: and a small lifting device is used for lifting the ton bags filled with the desulfurizing agent to the position above the feed inlet 13, and the ton bags can be fed by unlocking the ton bag discharge opening 15. Because the device has low feeding frequency, a special feeding device is not needed to be additionally arranged.
The application has the advantages that:
1. The solid dry flue gas desulfurization and dust removal integrated device provided by the utility model vertically passes through the desulfurization and dust removal layer in the left and right directions under the action of the herringbone down-draft plate after flue gas to be treated enters the air inlet duct in the tower, and compared with a device passing through the desulfurization and dust removal layer in a single direction, the solid dry flue gas desulfurization and dust removal integrated device has the advantages that the air distribution area is doubled, the occupied area is reduced by about 50%, the flue gas resistance is reduced by 50% and the production cost is reduced by 40% under the condition that the flue gas treatment amount is the same.
2. The time for the flue gas to pass through the desulfurization and dust removal layer in the desulfurization and dust removal tower is not less than 2.5 seconds, so that sulfur dioxide in the flue gas is fully reflected by the calcium-based alkaline desulfurizing agent in the desulfurization layer, and the desulfurization efficiency is more than 90%.
3. The flow velocity of the flue gas passing through the desulfurization and dust removal layer in the solid dry flue gas desulfurization and dust removal tower is not more than 0.4 m/s, and the flow velocity is low, so that particles in the flue gas are fully intercepted by the calcium-based alkaline desulfurizing agent in the desulfurization layer, and the effect of deep dust removal is achieved.
4. For the initial emission concentration of the particles in the flue gas to be treated of 40-50 mg/standard cubic meter of flue gas, the device can reach the limit emission of 20-mg/standard cubic meter without installing a dust remover; for the flue gas with the initial emission concentration of 20-30 mg/standard cubic meter of particles in the flue gas to be treated, the ultra-low emission of 10 mg/standard cubic meter can be achieved without installing a dust remover by using the device; for the flue gas with the initial emission concentration of the particulate matters in the flue gas to be treated of 10-20 mg/standard cubic meter, the ultra-clean emission of 5 mg/standard cubic meter can be achieved without installing a dust remover.
5. The device is suitable for the temperature range of the flue gas of 0-400 ℃.
6. The solid dry flue gas desulfurization and dust removal integrated device provided by the utility model is very convenient to mount, dismount and reload, provides great convenience for users, is extremely simple in process and has no moving parts, so that the device is not easy to fail, and the desulfurization and dust removal effects are stable and easy to adjust.
7. The solid dry flue gas desulfurization and dust removal integrated device provided by the utility model does not generate waste water and waste gas, waste residues are saturated desulfurizing agents, are solid dry gypsum, belong to general waste, and can be used as building materials for secondary use.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (8)
1. The utility model provides a integrative device of solid dry desulfurization dust removal, its characterized in that, including tower body shell (2) that are used for handling the flue gas, have in tower body shell (2) inlet channel (5) and the air outlet channel (10) of level arrangement in inlet channel (5) both sides set up twice desulfurization dust removal layer (7) between inlet channel (5) with air outlet channel (10) inlet channel (5) end is fixed to be set up herringbone down wind board (6), makes the flue gas that gets into in inlet channel (5) divide left and right sides two directions perpendicular pass desulfurization dust removal layer (7) to in outlet channel (10).
2. The solid dry desulfurization and dust removal integrated device according to claim 1, further comprising a support (1) placed on the ground, wherein the tower shell (2) is mounted on the support (1).
3. The solid dry desulfurization and dust removal integrated device according to claim 2, wherein the front end of the tower body shell (2) is provided with an air inlet (3), the air inlet (3) is communicated with the air inlet duct (5), the rear end of the tower body shell (2) is provided with an air outlet (12), and the air outlet (12) is communicated with the air outlet duct (10).
4. A solid dry desulfurization and dust removal integrated device according to claim 3, characterized in that the area between the air inlet (3) and the air inlet duct (5) on the tower body shell (2) is an air inlet buffer bin (4), the air inlet buffer bin (4) is provided with a flue gas buffer area, and the area between the air outlet (12) and the air outlet duct (10) on the tower body shell (2) is an air outlet buffer bin (11).
5. The solid dry desulfurization and dust removal integrated device according to claim 4, wherein an air distribution plate is arranged in the tower body shell (2), the desulfurization and dust removal layer (7) is positioned in the air distribution plate, the air distribution plate comprises an air inlet air distribution plate (8) and an air outlet air distribution plate (9), the air inlet air distribution plate (8) is positioned at one side close to the air inlet duct (5), and the air outlet air distribution plate (9) is positioned at one side close to the air outlet duct (10).
6. The solid dry desulfurization and dust removal integrated device according to claim 5, wherein a plurality of feed inlets (13) are formed in the top of the tower body shell (2) and are positioned right above two desulfurization and dust removal layers (7) at equal intervals, and the length of each feed inlet (13) is consistent with the thickness of each desulfurization and dust removal layer (7), and the width is generally not less than 600mm.
7. The solid dry desulfurization and dust removal integrated device according to claim 6, wherein a discharge hopper (14) is arranged under each desulfurization and dust removal layer (7) at equal distance, four sides of the discharge hopper (14) are trapezoid, the discharge hopper (14) is provided with a discharge opening (15), and the discharge opening (15) is controlled by a screw gate valve.
8. The solid dry desulfurization and dust removal integrated device according to claim 7, wherein artificial holes (16) are arranged at the lower ends of the air inlet (3) and the air outlet (12) of the tower shell (2).
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| CN202322654913.2U CN220779710U (en) | 2023-09-28 | 2023-09-28 | Solid dry desulfurization and dust removal integrated device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202322654913.2U CN220779710U (en) | 2023-09-28 | 2023-09-28 | Solid dry desulfurization and dust removal integrated device |
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