CN104190219A - Desulphurization device combining wet-method desulphurization device and semi-dry-method desulphurization device in series - Google Patents
Desulphurization device combining wet-method desulphurization device and semi-dry-method desulphurization device in series Download PDFInfo
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- CN104190219A CN104190219A CN201410455024.6A CN201410455024A CN104190219A CN 104190219 A CN104190219 A CN 104190219A CN 201410455024 A CN201410455024 A CN 201410455024A CN 104190219 A CN104190219 A CN 104190219A
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Abstract
The invention discloses a desulphurization device combining a wet-method desulphurization device and a semi-dry-method desulphurization device in series. Partial smoke is pumped into a conical wind pipe inn a wet rotary kiln through an exhaust fan, and then the smoke is blown out from a horn-shaped air nozzle to scatter lime water sprayed out by a nozzle group to form mist. Or partial smoke is sent into a rotary atomizer in a desulphurization tower through the exhaust fan and is discharged from the horn-shaped air nozzle so as to scatter the lime water sprayed out from the nozzle group to form the mist. The smoke is adequately mixed with smoke entering from a lower opening of the wet rotary kiln or an upper opening of the desulphurization tower to be subjected to chemical reaction to generate calcium sulfite. Matters which are adhered onto the inner wall of the wet rotary kiln are brushed by a row of brushes when the wet rotary kiln rotates. The rotary atomizer rotates rapidly under acting force of the smoke blowing blades and counteracting force of the smoke blown out from the horn-shaped air nozzle and the lime water sprayed out by the nozzle group. Mist containing sulfuric dioxide enters a rotary semi-dry rotary kiln to be subjected to chemical reaction with lime dust to generate calcium sulfide. The lime dust absorbs the mist to play a role of a demister.
Description
Technical field:
The present invention relates to the devulcanizer of a kind of wet desulphurization device and semidry process desulfurizer tandem compound.
Background technology:
The flue gas that burns down boiler need to process through smoke processing system, both after desulphurization and denitration and dedusting, could go out from smoke stack emission.The method of desulfurization has: dry desulfurization, semi-dry desulphurization and wet desulphurization.Dry desulfurization: be after flue gas being pressurizeed with high pressure blower, from the bed bottom blowing of fluid bed, enter, desulfurizing agent on fluid bed (such as pulverized limestone, caustic soda powder) etc. is blowed floating, and the sulfur dioxide in flue gas reacts with lime or caustic soda and generates calcium sulfite or sodium sulfite.The efficiency of dry desulfurization is not high, still contains a large amount of sulfur dioxide in flue gas.Semi-dry desulphurization: be to spray water, increase the humidity of flue gas in flue gas, then after flue gas being pressurizeed with high pressure blower, from the bed bottom blowing of fluid bed, enter, desulfurizing agent on fluid bed (such as pulverized limestone, caustic soda powder) etc. is blowed floating, and the sulfur dioxide in flue gas reacts with lime or caustic soda and generates calcium sulfite or sodium sulfite.The efficiency of semi-dry desulphurization is slightly higher, still contains a large amount of sulfur dioxide in flue gas.Wet desulphurization: be from desulfurizing tower top, by rotary sprayer to spraying the water contain desulfurizing agent below, the flue gas of more than 100 degree Celsius enters desulfurizing tower and meets and produce a large amount of steam with the water that contains desulfurizing agent from spraying above above desulfurizing tower, and the sulfur dioxide in flue gas and desulfurizing agent generation chemical reaction (namely sulfur dioxide reacts with lime or caustic soda and generates calcium sulfite or sodium sulfite).The efficiency of wet desulphurization is very high, and desulfurization degree reaches 90%; But still contain a lot of sulfur dioxide, the thick weather that this sees just as us in the steam producing.Wet desulphurization also can produce and be difficult to remove calcium sulfate scale on desulfurizing tower wall, and the calcium sulfate scale on desulfurizing tower wall is too many, the desulfurizing tower that can crush and be made by nonmetallic materials.The steam that wet desulphurization produces need to be removed with demister, even still very large by the humidity of the clean flue gas discharging from chimney after demister removing steam again after such desulfurization; So, flue gas from chimney, out meet cold after, still have that white mist occurs, both out flue gas presented light white from chimney.In order to allow the water that the contains desulfurizing agent atomization of can scattering of ejection, contact fully the sulfur dioxide in flue gas; Normally with the compressed air that air compressor machine extrudes, enter in the water of water pump extrusion, in water, produce a large amount of bubbles; The water that contains a large amount of bubbles sprays from nozzle, will form spray water, scatter.
Summary of the invention:
The present invention is the devulcanizer of a kind of wet desulphurization device and semidry process desulfurizer tandem compound.From entering wet desulphurization device, the boiler flue gas with more than 100 degrees Celsius out enters again semidry process desulfurizer, the waste water that contains gypsum that wet desulphurization produces flows in sedimentation basin, and the limewash flowing out from the overfall of sedimentation basin flows to collecting-tank and is withdrawn in wet desulphurization device and recycles by water pump.Devulcanizer is cascaded and is formed by rotary kiln wet desulphurization device and rotary kiln semidry process desulfurizer.The wet rotary kiln of rotary kiln wet desulphurization device is tilted to and is arranged on two brace tables, the circular orbit of wet rotary kiln outside is pressed on two rollers on brace table, driving gear on motor drives the driven gear that wraps in wet rotary kiln outside to rotate, thereby drives wet rotary kiln to rotate.Taper water pipe enters from the lower port of wet rotary kiln, and in wet rotary kiln, upside is fixed on from wet rotary kiln upper port and puts in next band iron passing.On taper water pipe, every a segment distance, a nozzle group is just installed downwards, has a conical air pipe to be enclosed within taper water pipe outside.On each nozzle group, cover has a tubaeform tuyere, and there is spiral rifling bar tubaeform tuyere inner side.Tubaeform tuyere is communicated with conical air pipe, and air exhauster is sending into conical air pipe from the part of smoke burning down boiler from flue is extracted out.Row brush is equipped with in conical air pipe outside, and during wet rotary kiln rotation, row brush brushes down the material that sticks to wet rotary kiln inwall.The half-dried rotary kiln lower port of rotary kiln semidry process desulfurizer is docked with the upper port of wet rotary kiln by encapsulant, on half-dried rotary kiln inwall, flight is housed, and ring network is equipped with at half-dried rotary kiln lower port place.In half-dried rotary kiln, be placed with active carbon, white lime or caustic soda desulfurizing agent.The rotating mechanism of the half-dried rotary kiln of rotary kiln semidry process desulfurizer is identical with the rotating mechanism of the wet rotary kiln of rotary kiln wet desulphurization device.A shell is equipped with in the rotary kiln wet desulphurization device being cascaded and rotary kiln semidry process desulfurizer outside, and shell wraps in the inside whole parts of the rotary kiln wet desulphurization device except brace table and rotary kiln semidry process desulfurizer.Between half-dried rotary kiln, wet rotary kiln, shell, with glass fibre felt, seal.The water with gypsum flowing out from wet rotary kiln flows in sedimentation basin through after separation valve door.Wet rotary kiln and half-dried rotary kiln are to be made by fiberglass.
Adopt the technological process of the present invention of this structure as follows: the limewash flowing out from the overfall of sedimentation basin flows to collecting-tank, by water pump, be withdrawn in the taper water pipe of wet rotary kiln the inside of wet desulphurization device, then from nozzle group, spray.Air exhauster is sending into conical air pipe from the part of smoke burning down boiler from flue is extracted out, then from the tubaeform tuyere with spiral rifling, blow out, the limewash of nozzle group ejection is dispelled, forms spray water, fully mix with the flue gas entering from wet rotary kiln lower port, sulfur dioxide generation chemical reaction calcium sulfite in vaporific limewash and flue gas, calcium sulfite adheres on wet rotary kiln wall.During wet rotary kiln rotation, row brush brushes down the material that sticks to wet rotary kiln inwall.In the flue gas generation heat exchange of wet rotary kiln sodalime spray water and more than 100 degree Celsius, produce a large amount of sulfur dioxide water smoke that is dissolved with, there is the water smoke of the thick weather after contaminated as air.The linear pattern flight being equipped with on half-dried rotary kiln inwall, the eminence that falls into pulverized limestone in half-dried rotary kiln and take to half-dried rotary kiln, lime dust then scatters, kicks up.The water smoke that contains sulfur dioxide enters the half-dried rotary kiln of rotation, generates calcium sulfite with the lime dust generation chemical reaction in half-dried rotary kiln.Lime dust in half-dried rotary kiln has absorbed the water smoke entering in half half-dried rotary kiln, plays the effect of defogger.Ring network can avoid desulfurizing agent to flow in wet rotary kiln downwards.The limewash with calcium sulfite flowing out from the outlet of wet rotary kiln lower end, flows in sedimentation basin by after separation valve door.Separation valve door is closed, and can avoid flue gas to leak out from separation valve door.Calcium sulfite can absorb oxygen and generate under calcium sulfate precipitation in sedimentation basin.The limewash flowing out from the overfall of sedimentation basin, flows in collecting-tank and is withdrawn in rotary kiln wet desulphurization device and is recycled by water pump.
The present invention is the devulcanizer of a kind of wet desulphurization device and semidry process desulfurizer tandem compound.Tower wet desulphurization device is comprised of desulfurizing tower, rotary sprayer and water pump.Rotary sprayer is similar to the rotation spray arm configuration of dish-washing machine, only turn use around, and being flexibly connected between rotary sprayer and water inlet pipe is by frictional connection between two ceramic seal circles.Between ceramic seal circle and rotary sprayer, an organic silicon rubber sealing ring is respectively housed as elastomeric material between another ceramic seal circle and water inlet pipe.The vertical water-main that rotary sprayer is flexibly connected with water inlet pipe by one, vertically below water-main, level is branched into three distributive pipes, and several nozzle groups to lopsidedness are all housed on each distributive pipe.Water pump extracts limewash from collecting-tank, from water inlet pipe, enters, and then from the nozzle group of rotary sprayer, to next side spray, goes out, promotes rotary sprayer rotation.Flue gas is blown into from the upper port of desulfurizing tower, then from the downside mouth of desulfurizing tower, blows out.The waste water that contains gypsum that tower wet desulphurization device produces flows in sedimentation basin, and the limewash flowing out from the overfall of sedimentation basin flows to collecting-tank and is withdrawn in tower wet desulphurization device and recycles by water pump.Air exhauster is sending into from flue is extracted out in the blast pipe that is enclosed within the water inlet pipe outside being flexibly connected with rotary sprayer from the part of smoke burning down boiler.The outer surface cover of the vertical water-main of rotary sprayer has vertical blast main, vertically between blast main and blast pipe, is flexibly connected; Three minutes airducts that link together with vertical blast main lower end are enclosed within respectively three distributive pipe outsides, and each the nozzle group outside cover on three distributive pipes has a tubaeform tuyere being connected with minute airduct, and there is spiral rifling bar tubaeform tuyere inner side.Within three minutes, the airduct back side respectively fills after a slice fan blade, and rotary sprayer is just as a punkah.Most of flue gas is blown into from the upper port of desulfurizing tower, just as the fan blade that strong wind blows wind-driven generator, blow rotary sprayer and rotate.Rotary sprayer blows the lower quick rotation of making a concerted effort of the reaction force of the reaction force of flue gas that the active force of fan blade, tubaeform tuyere blow out and the limewash of nozzle group ejection at flue gas.Sulfur dioxide in flue gas and vaporific lime water droplet generation chemical reaction generate calcium sulfite, remove most of sulfur dioxide, then from the downside mouth of desulfurizing tower, blow out.Devulcanizer or be cascaded and formed by tower wet desulphurization device and rotary kiln semidry process desulfurizer, blows out from the downside mouth of desulfurizing tower through the wet flue gas of wet desulphurization, enters in rotary kiln semidry process desulfurizer.The half-dried rotary kiln of rotary kiln semidry process desulfurizer is tilted to and is arranged on two brace tables, the circular orbit of half-dried rotary kiln outside is pressed on two rollers on brace table, driving gear on motor drives the driven gear that wraps in half-dried rotary kiln outside to rotate, thereby drives half-dried rotary kiln to rotate.The half-dried rotary kiln lower port of rotary kiln semidry process desulfurizer is docked with the downside mouth of desulfurizing tower by encapsulant, on half-dried rotary kiln inwall, flight is housed, and ring network is equipped with at half-dried rotary kiln lower port place, and half-dried rotary kiln is to be made by fiberglass.In half-dried rotary kiln, be placed with active carbon, white lime or caustic soda desulfurizing agent.A shell is equipped with in rotary kiln semidry process desulfurizer outside, and shell wraps in the inside whole parts of the rotary kiln semidry process desulfurizer except brace table, between half-dried rotary kiln and shell, with glass fibre felt, seals.The water with gypsum flowing out from the desulfurizing tower of tower wet desulphurization device flows in sedimentation basin through after separation valve door.
Adopt the technological process of the present invention of this structure as follows: the limewash flowing out from the overfall of sedimentation basin flows to collecting-tank, by water pump, be withdrawn in the water inlet pipe of desulfurizing tower top of tower wet desulphurization device the nozzle group ejection of the vertical water-main that then enters rotary sprayer from distributive pipe.Air exhauster is sending into blast pipe from the part of smoke burning down boiler from flue is extracted out, then the vertical blast main tubaeform tuyere with spiral rifling from minute airduct that enters rotary sprayer blows out, dispelling, form spray water from the limewash of nozzle group ejection.Meanwhile, the reaction force of generation makes rotary sprayer fast rotational.Most of flue gas is blown into from the upper port of desulfurizing tower through flue, just as the fan blade that strong wind blows wind-driven generator, blow rotary sprayer and rotate.Rotary sprayer blows quick rotation under the force action of reaction force of the reaction force of flue gas that the active force of fan blade, tubaeform tuyere blow out and the limewash of nozzle group ejection at flue gas.Sulfur dioxide in flue gas and vaporific lime water droplet generation chemical reaction generate calcium sulfite, remove most of sulfur dioxide, then from the downside mouth of desulfurizing tower, blow out.In the flue gas generation heat exchange of desulfurizing tower sodalime spray water and more than 100 degree Celsius, produce a large amount of sulfur dioxide water smoke that is dissolved with, there is the water smoke of the thick weather after contaminated as air.The linear pattern flight being equipped with on half-dried rotary kiln inwall, the eminence that falls into pulverized limestone in half-dried rotary kiln and take to half-dried rotary kiln, lime dust then scatters, kicks up.The water smoke that contains sulfur dioxide enters the half-dried rotary kiln of rotation, generates calcium sulfite with the lime dust generation chemical reaction in half-dried rotary kiln.Lime dust in half-dried rotary kiln has absorbed the water smoke entering in half-dried rotary kiln, plays the effect of defogger.Ring network can avoid desulfurizing agent to flow in desulfurizing tower downwards.The limewash with calcium sulfite flowing out from desulfurizing tower outlet at bottom, flows in sedimentation basin by after separation valve door.Separation valve door is closed, and can avoid flue gas to leak out from separation valve door.Lime can be in being dissolved in the water of sedimentation basin, and calcium sulfite can absorb oxygen and generate calcium sulfate in sedimentation basin.The limewash flowing out from the overfall of sedimentation basin flows to collecting-tank, by water pump, is withdrawn in tower wet desulphurization device and is recycled.
Accompanying drawing explanation:
Below in conjunction with the drawings and specific embodiments, the present invention is done to further concrete detailed explanation.
Fig. 1 is the structural representation of the devulcanizer of a kind of rotary kiln wet desulphurization device of the present invention and rotary kiln semidry process desulfurizer tandem compound.
Fig. 2 is the structural representation of the devulcanizer of a kind of tower wet desulphurization device of this present invention and rotary kiln semidry process desulfurizer tandem compound.
The specific embodiment:
Shown in Fig. 1, the present invention is the devulcanizer of a kind of wet desulphurization device and semidry process desulfurizer tandem compound.From entering wet desulphurization device, the boiler flue gas with more than 100 degrees Celsius out enters again semidry process desulfurizer, the waste water that contains gypsum that wet desulphurization produces flows in sedimentation basin 4, and the limewash flowing out from the overfall of sedimentation basin 4 flows to collecting-tank 3 and is withdrawn in wet desulphurization device and recycles by water pump.Devulcanizer is cascaded and is formed by rotary kiln wet desulphurization device and rotary kiln semidry process desulfurizer.The wet rotary kiln 10 of rotary kiln wet desulphurization device is tilted to and is arranged on two brace tables 1, the circular orbit of wet rotary kiln 10 outsides is pressed on two rollers on brace table 1, driving gear on motor 2 drives the driven gear that wraps in wet rotary kiln 10 outsides to rotate, thereby drives wet rotary kiln 10 to rotate.Taper water pipe 11 enters from the lower port of wet rotary kiln 10, from the wet interior upside of rotary kiln 10 passes, is fixed on from wet rotary kiln 10 upper port and puts in next band iron.On taper water pipe 11, every a segment distance, a nozzle group 13 is just installed downwards, has a conical air pipe 12 to be enclosed within taper water pipe 11 outsides.On each nozzle group 13, cover has a tubaeform tuyere 14, and there is spiral rifling bar tubaeform tuyere 14 inner sides.Tubaeform tuyere 14 is communicated with conical air pipe 12, and air exhauster 7 is sending into conical air pipe 12 from the part of smoke burning down boiler from flue 6 is extracted out.Row brush is equipped with in conical air pipe 12 outsides, and during wet rotary kiln 10 rotation, row brush brushes down the material that sticks to wet rotary kiln 10 inwalls.Half-dried rotary kiln 8 lower port of rotary kiln semidry process desulfurizer are docked with the upper port of wet rotary kiln 10 by encapsulant, on half-dried rotary kiln 8 inwalls, flight are housed, and ring network is equipped with at half-dried rotary kiln 8 lower port places.In half-dried rotary kiln 8, be placed with active carbon, white lime or caustic soda desulfurizing agent.The rotating mechanism of the half-dried rotary kiln 8 of rotary kiln semidry process desulfurizer is identical with the rotating mechanism of the wet rotary kiln 10 of rotary kiln wet desulphurization device.A shell 9 is equipped with in the rotary kiln wet desulphurization device being cascaded and rotary kiln semidry process desulfurizer outside, and shell 9 wraps in the inside whole parts of the rotary kiln wet desulphurization device except brace table and rotary kiln semidry process desulfurizer.Between half-dried rotary kiln 8, wet rotary kiln 10, shell 9, with glass fibre felt, seal.The water with gypsum flowing out from wet rotary kiln flows in sedimentation basin 4 through after separation valve door 17.Wet rotary kiln 10 and half-dried rotary kiln 8 are to be made by fiberglass.
Shown in Fig. 1, adopt the technological process of the present invention of this structure as follows: the limewash flowing out from the overfall of sedimentation basin flows to collecting-tank, by water pump 5, be withdrawn in the taper water pipe 11 of wet rotary kiln the inside of wet desulphurization device, then from nozzle group 13 ejections.Air exhauster 7 is sending into conical air pipe 12 from the part of smoke burning down boiler from flue 6 is extracted out, then from the tubaeform tuyere 14 with spiral rifling, blow out, the limewash of nozzle group 13 ejections is dispelled, forms spray water, fully mix with the flue gas entering from wet rotary kiln 10 lower port, sulfur dioxide generation chemical reaction calcium sulfite in vaporific limewash and flue gas, calcium sulfite adheres on wet rotary kiln wall 10.During wet rotary kiln 10 rotation, row brush brushes down the material that sticks to wet rotary kiln 10 inwalls.In the flue gas generation heat exchange of wet rotary kiln 10 sodalime spray waters and more than 100 degree Celsius, produce a large amount of sulfur dioxide water smoke that is dissolved with, there is the water smoke of the thick weather after contaminated as air.The linear pattern flight being equipped with on half-dried rotary kiln 8 inwalls, the eminence that falls into pulverized limestone in half-dried rotary kiln 8 and take to half-dried rotary kiln 8, lime dust then scatters, kicks up.The water smoke that contains sulfur dioxide enters the half-dried rotary kiln 8 of rotation, generates calcium sulfite with the lime dust generation chemical reaction of 8 li, dry rotary kiln.Lime dust in half-dried rotary kiln 8 has absorbed the water smoke entering in half half-dried rotary kiln 8, plays the effect of defogger.Ring network can avoid desulfurizing agent to flow in wet rotary kiln 10 downwards.The limewash with calcium sulfite flowing out from the outlet of wet rotary kiln lower end, by flowing in sedimentation basin 4 after separation valve door 17.Separation valve door 17 is closed, and can avoid flue gas to leak out from separation valve door 17.Calcium sulfite can absorb oxygen and generate under calcium sulfate precipitation in sedimentation basin 4.The limewash flowing out from the overfall of sedimentation basin 4, flows in collecting-tank 3 and is withdrawn in rotary kiln wet desulphurization device and is recycled by water pump 5.
Shown in Fig. 2, the present invention is the devulcanizer of a kind of wet desulphurization device and semidry process desulfurizer tandem compound.Tower wet desulphurization device is comprised of desulfurizing tower 15, rotary sprayer 16 and water pump 5.Rotary sprayer 16 is similar to the rotation spray arm configuration of dish-washing machine, only turn use around, and being flexibly connected between rotary sprayer 16 and water inlet pipe is by frictional connection between two ceramic seal circles.Between ceramic seal circle and rotary sprayer 16, an organic silicon rubber sealing ring is respectively housed as elastomeric material between another ceramic seal circle and water inlet pipe.The vertical water-main that rotary sprayer 16 is flexibly connected with water inlet pipe by one, vertically below water-main, level is branched into three distributive pipes, and several nozzle groups 13 to lopsidedness are all housed on each distributive pipe.Water pump 5 extracts limewash from collecting-tank 3, from water inlet pipe, enters, and then from the nozzle group 13 of rotary sprayer 16, to next side spray, goes out, promotes rotary sprayer 16 rotations.Flue gas is blown into from the upper port of desulfurizing tower 15, then from the downside mouth of desulfurizing tower 15, blows out.The waste water that contains gypsum that tower wet desulphurization device produces flows in sedimentation basin 4, and the limewash flowing out from the overfall of sedimentation basin 4 flows to collecting-tank 3 and is withdrawn in tower wet desulphurization device and recycles by water pump 5.Air exhauster 7 is sending into from flue 6 is extracted out in the blast pipe that is enclosed within the water inlet pipe outside being flexibly connected with rotary sprayer 16 from the part of smoke burning down boiler.The outer surface cover of the vertical water-main of rotary sprayer 16 has vertical blast main, vertically between blast main and blast pipe, is flexibly connected; Three minutes airducts that link together with vertical blast main lower end are enclosed within respectively three distributive pipe outsides, article three, the tubaeform tuyere 14 that has to be connected with minute airduct is overlapped in each nozzle group 13 outside on distributive pipe, and there is spiral rifling bar tubaeform tuyere 14 inner sides.Within three minutes, the airduct back side respectively fills after a slice fan blade, and rotary sprayer 16 is just as a punkah.Most of flue gas is blown into from the upper port of desulfurizing tower 15, just as the fan blade that strong wind blows wind-driven generator, blow rotary sprayer 16 and rotate.Rotary sprayer 16 blows the active force of fan blade, the reaction force of flue gas and the lower quick rotation of making a concerted effort of the reaction force that nozzle group is sprayed 13 limewash that go out that tubaeform tuyere 14 blows out at flue gas.Sulfur dioxide in flue gas and vaporific lime water droplet generation chemical reaction generate calcium sulfite, remove most of sulfur dioxide, then from the downside mouth of desulfurizing tower 15, blow out.Devulcanizer or be cascaded and formed by tower wet desulphurization device and rotary kiln semidry process desulfurizer, blows out from the downside mouth of desulfurizing tower 15 through the wet flue gas of wet desulphurization, enters in rotary kiln semidry process desulfurizer.The half-dried rotary kiln 8 of rotary kiln semidry process desulfurizer is tilted to and is arranged on two brace tables 1, the circular orbit of half-dried rotary kiln 8 outsides is pressed on two rollers on brace table 1, driving gear on motor 2 drives the driven gear that wraps in half-dried rotary kiln 8 outsides to rotate, thereby drives half-dried rotary kiln 8 to rotate.Half-dried rotary kiln 8 lower port of rotary kiln semidry process desulfurizer are docked with the downside mouth of desulfurizing tower 15 by encapsulant, on half-dried rotary kiln 8 inwalls, flight are housed, and ring network is equipped with at half-dried rotary kiln 8 lower port places, and half-dried rotary kiln 8 is to be made by fiberglass.In half-dried rotary kiln 8, be placed with active carbon, white lime or caustic soda desulfurizing agent.A shell 9 is equipped with in rotary kiln semidry process desulfurizer outside, and shell 9 wraps in the inside whole parts of the rotary kiln semidry process desulfurizer except brace table 1, between half-dried rotary kiln 8 and shell 9, with glass fibre felt, seals.The water with gypsum flowing out from the desulfurizing tower of tower wet desulphurization device flows in sedimentation basin 4 through after separation valve door 17.
Shown in Fig. 2, adopt the technological process of the present invention of this structure as follows: the limewash flowing out from the overfall of sedimentation basin 4 flows to collecting-tank 3, by water pump 5, be withdrawn in the water inlet pipe of desulfurizing tower 15 tops of tower wet desulphurization device, the nozzle group of the vertical water-main that then enters rotary sprayer 16 from distributive pipe sprayed 13 and gone out.Air exhauster 7 is sending into blast pipe 7 from the part of smoke burning down boiler from flue 6 is extracted out, then the vertical blast main tubaeform tuyere 14 with spiral rifling from minute airduct that enters rotary sprayer 16 blows out, dispelling, form spray water from the limewash of nozzle group 13 ejections.Meanwhile, the reaction force of generation makes rotary sprayer 16 fast rotational.Most of flue gas is blown into from the upper port of desulfurizing tower 15 through flue 6, just as the fan blade that strong wind blows wind-driven generator, blow rotary sprayer 16 and rotate.Rotary sprayer 16 blows the active force of fan blade, quick rotation under the force action of the reaction force of the limewash of the reaction force of flue gas that tubaeform tuyere 14 blows out and nozzle group 13 ejections at flue gas.Sulfur dioxide in flue gas and vaporific lime water droplet generation chemical reaction generate calcium sulfite, remove most of sulfur dioxide, then from the downside mouth of desulfurizing tower 15, blow out.In the flue gas generation heat exchange of desulfurizing tower 15 sodalime spray waters and more than 100 degree Celsius, produce a large amount of sulfur dioxide water smoke that is dissolved with, there is the water smoke of the thick weather after contaminated as air.The linear pattern flight being equipped with on half-dried rotary kiln 8 inwalls, the eminence that falls into pulverized limestone in half-dried rotary kiln 8 and take to half-dried rotary kiln 8, lime dust then scatters, kicks up.The water smoke that contains sulfur dioxide enters the half-dried rotary kiln of rotation, generates calcium sulfite with the lime dust generation chemical reaction of 8 li, half-dried rotary kiln.Lime dust in half-dried rotary kiln 8 has absorbed the water smoke entering in half-dried rotary kiln 8, plays the effect of defogger.Ring network can avoid desulfurizing agent to flow in desulfurizing tower 15 downwards.The limewash with calcium sulfite flowing out from desulfurizing tower outlet at bottom, flows in sedimentation basin by after separation valve door.Separation valve door is closed, and can avoid flue gas to leak out from separation valve door 17.Lime can be in being dissolved in the water of sedimentation basin 4, and calcium sulfite can absorb oxygen and generate calcium sulfate in sedimentation basin 4.The limewash flowing out from the overfall of sedimentation basin flows to collecting-tank 3, by water pump 5, is withdrawn in tower wet desulphurization device and is recycled.
Claims (4)
1. the devulcanizer of a wet desulphurization device and semidry process desulfurizer tandem compound, from entering wet desulphurization device, the boiler flue gas with more than 100 degrees Celsius out enters again semidry process desulfurizer, the waste water that contains gypsum that wet desulphurization produces flows in sedimentation basin, and the limewash flowing out from the overfall of sedimentation basin flows to collecting-tank and is withdrawn in wet desulphurization device and is recycled by water pump, it is characterized in that: described devulcanizer is cascaded and is formed by rotary kiln wet desulphurization device and rotary kiln semidry process desulfurizer, the wet rotary kiln (10) of rotary kiln wet desulphurization device is tilted to and is arranged on two brace tables, the circular orbit of wet rotary kiln (10) outside is pressed on two rollers on brace table (1), driving gear on motor (2) drives the driven gear that wraps in wet rotary kiln outside to rotate, thereby drives wet rotary kiln (10) to rotate, taper water pipe (11) enters from the lower port of wet rotary kiln (10), from the wet interior upside of rotary kiln (10) passes, is fixed on from wet rotary kiln (10) upper port and puts in next band iron, the water that described water pump (5) is extracted out from described collecting-tank (3) enters taper water pipe (11), at taper water pipe (11), above every a segment distance, a nozzle group (13) is just installed downwards, there is a conical air pipe to be enclosed within taper water pipe (11) outside, on each nozzle group (13), cover has a tubaeform tuyere (14), there is spiral rifling bar tubaeform tuyere (14) inner side, tubaeform tuyere (14) is communicated with conical air pipe (12), air exhauster (7) is sending into conical air pipe (12) from the part of smoke burning down boiler from flue (6) is extracted out, outer (12) side of conical air pipe is equipped with row brush, during wet rotary kiln (10) rotation, row brush brushes down the material that sticks to wet rotary kiln (10) inwall, half-dried rotary kiln (8) lower port of rotary kiln semidry process desulfurizer is docked with the upper port of wet rotary kiln (10) by encapsulant, on half-dried rotary kiln (8) inwall, flight is housed, ring network is equipped with at half-dried rotary kiln (8) lower port place, in half-dried rotary kiln (8), be placed with active carbon, white lime or caustic soda desulfurizing agent, the rotating mechanism of the half-dried rotary kiln (8) of rotary kiln semidry process desulfurizer is identical with the rotating mechanism of the wet rotary kiln (10) of rotary kiln wet desulphurization device, a shell (9) is equipped with in the rotary kiln wet desulphurization device being cascaded and rotary kiln semidry process desulfurizer outside, shell (9) wraps in the inside whole parts of the rotary kiln wet desulphurization device except brace table (1) and rotary kiln semidry process desulfurizer, between half-dried rotary kiln (8), wet rotary kiln (10), shell (9), with glass fibre felt, seals, the water with gypsum flowing out from wet rotary kiln flows in described sedimentation basin (4) afterwards through separation valve door (17).
2. the devulcanizer of wet desulphurization device and semidry process desulfurizer tandem compound according to claim 1, is characterized in that: described wet rotary kiln (10) is to be made by fiberglass.
3. the devulcanizer of a wet desulphurization device and semidry process desulfurizer tandem compound, tower wet desulphurization device is comprised of desulfurizing tower, rotary sprayer and water pump, rotary sprayer is similar to the rotation spray arm configuration of dish-washing machine, only turn use around, and being flexibly connected between rotary sprayer and water inlet pipe is by frictional connection between two ceramic seal circles, between ceramic seal circle and rotary sprayer, an organic silicon rubber sealing ring is respectively housed as elastomeric material between another ceramic seal circle and water inlet pipe, the vertical water-main that rotary sprayer is flexibly connected with water inlet pipe by one, vertically below water-main, level is branched into three distributive pipes, and several nozzle groups to lopsidedness are all housed on each distributive pipe, water pump extracts limewash from collecting-tank, from water inlet pipe, enters, and then from the nozzle group of rotary sprayer, to next side spray, goes out, promotes rotary sprayer rotation, and flue gas is blown into from the upper port of desulfurizing tower, then from the downside mouth of desulfurizing tower, blows out, the waste water that contains gypsum that tower wet desulphurization device produces flows in sedimentation basin, and the limewash flowing out from the overfall of sedimentation basin flows to collecting-tank and is withdrawn in tower wet desulphurization device and is recycled by water pump, it is characterized in that: air exhauster (7) is sending into from flue (6) is extracted out in the blast pipe that is enclosed within the water inlet pipe outside being flexibly connected with described rotary sprayer (16) from the part of smoke burning down boiler, the outer surface cover of vertical water-main of described rotary sprayer (16) has vertical blast main, vertically between blast main and blast pipe, be flexibly connected, three minutes airducts that link together with vertical blast main lower end are enclosed within respectively described three distributive pipes outside, article three, each nozzle group (13) the outside cover on distributive pipe has a tubaeform tuyere (14) being connected with minute airduct, there is spiral rifling bar tubaeform tuyere (14) inner side, within three minutes, the airduct back side respectively fills after a slice fan blade, and described rotary sprayer (16) is just as a punkah, most of flue gas is blown into from the upper port of desulfurizing tower, just as the fan blade that strong wind blows wind-driven generator, blow described rotary sprayer (16) and rotate, described rotary sprayer (16) blows the lower quick rotation of making a concerted effort of the reaction force of the reaction force of flue gas that the active force of fan blade, tubaeform tuyere (14) blow out and the limewash of nozzle group (13) ejection at flue gas, sulfur dioxide in flue gas and vaporific lime water droplet generation chemical reaction generate calcium sulfite, remove most of sulfur dioxide, then from the downside mouth of described desulfurizing tower (15), blow out, described devulcanizer is cascaded and is formed by tower wet desulphurization device and rotary kiln semidry process desulfurizer, wet flue gas through wet desulphurization blows out from the downside mouth of described desulfurizing tower (15), enters in the half-dried rotary kiln (8) of rotary kiln semidry process desulfurizer, the half-dried rotary kiln (8) of rotary kiln semidry process desulfurizer is tilted to and is arranged on two brace tables (1), the circular orbit of half-dried rotary kiln (8) outside is pressed on two rollers on brace table (1), driving gear on motor (2) drives the driven gear that wraps in half-dried rotary kiln (8) outside to rotate, thereby drives half-dried rotary kiln (8) to rotate, half-dried rotary kiln (8) lower port of rotary kiln semidry process desulfurizer is docked with the downside mouth of described desulfurizing tower (15) by encapsulant, on half-dried rotary kiln (8) inwall, flight is housed, ring network is equipped with at half-dried rotary kiln (8) lower port place, is placed with active carbon, white lime or caustic soda desulfurizing agent in half-dried rotary kiln (8), a shell (9) is equipped with in rotary kiln semidry process desulfurizer outside, shell (9) wraps in the inside whole parts of the rotary kiln semidry process desulfurizer except brace table (1), between half-dried rotary kiln (8) and shell (9), with glass fibre felt, seals, the water with gypsum flowing out from the desulfurizing tower (15) of tower wet desulphurization device flows in described sedimentation basin afterwards through separation valve door (17).
4. according to the devulcanizer of wet desulphurization device described in claim 1 or 3 and semidry process desulfurizer tandem compound, it is characterized in that: described half-dried rotary kiln (8) is to be made by fiberglass.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108410722A (en) * | 2018-03-06 | 2018-08-17 | 张英华 | Biogas generating device and coal straw gasification device and control method |
| CN108525442A (en) * | 2018-04-26 | 2018-09-14 | 费先艳 | Air-borne dust wet deposition processing equipment for environmental improvement |
| CN112843968A (en) * | 2021-01-30 | 2021-05-28 | 郑州睿强实验设备有限公司 | Solid-state flue gas treatment device for chemical experiment |
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| CN203281170U (en) * | 2013-06-01 | 2013-11-13 | 福建鸿丰纳米科技有限公司 | Desulphurization system for lime kiln |
| JP2014108907A (en) * | 2012-12-03 | 2014-06-12 | Taiheiyo Cement Corp | Treatment device for cement kiln combustion exhaust gas and treatment method therefor |
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| CN201586463U (en) * | 2010-02-01 | 2010-09-22 | 煤炭工业济南设计研究院有限公司 | Combined type boiler dust-removal and desulfurization device |
| JP2014108907A (en) * | 2012-12-03 | 2014-06-12 | Taiheiyo Cement Corp | Treatment device for cement kiln combustion exhaust gas and treatment method therefor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108410722A (en) * | 2018-03-06 | 2018-08-17 | 张英华 | Biogas generating device and coal straw gasification device and control method |
| CN108410722B (en) * | 2018-03-06 | 2021-04-06 | 张英华 | Biogas generation device, coal straw gasification device and control method |
| CN108525442A (en) * | 2018-04-26 | 2018-09-14 | 费先艳 | Air-borne dust wet deposition processing equipment for environmental improvement |
| CN112843968A (en) * | 2021-01-30 | 2021-05-28 | 郑州睿强实验设备有限公司 | Solid-state flue gas treatment device for chemical experiment |
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| CN104190219B (en) | 2016-08-24 |
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