CN112973350A - Wet electric dust removal method and device for secondary lead fire refining flue gas - Google Patents
Wet electric dust removal method and device for secondary lead fire refining flue gas Download PDFInfo
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- CN112973350A CN112973350A CN202110143915.8A CN202110143915A CN112973350A CN 112973350 A CN112973350 A CN 112973350A CN 202110143915 A CN202110143915 A CN 202110143915A CN 112973350 A CN112973350 A CN 112973350A
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- 239000000428 dust Substances 0.000 title claims abstract description 84
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 239000003546 flue gas Substances 0.000 title claims abstract description 27
- 238000007670 refining Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 135
- 238000001816 cooling Methods 0.000 claims abstract description 54
- 239000000779 smoke Substances 0.000 claims abstract description 38
- 239000002245 particle Substances 0.000 claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 238000004062 sedimentation Methods 0.000 claims abstract description 10
- 239000002893 slag Substances 0.000 claims abstract description 9
- 238000003723 Smelting Methods 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- 239000007921 spray Substances 0.000 claims description 16
- 239000003595 mist Substances 0.000 claims description 15
- 239000000919 ceramic Substances 0.000 claims description 9
- 150000002500 ions Chemical class 0.000 claims description 9
- 239000010797 grey water Substances 0.000 claims description 8
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 6
- 230000007935 neutral effect Effects 0.000 claims description 6
- 229910001385 heavy metal Inorganic materials 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 3
- 230000005684 electric field Effects 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 3
- 239000002923 metal particle Substances 0.000 claims description 3
- 238000010410 dusting Methods 0.000 claims 1
- 238000007689 inspection Methods 0.000 abstract description 4
- 239000010802 sludge Substances 0.000 abstract description 4
- 125000004122 cyclic group Chemical group 0.000 abstract description 2
- 238000007664 blowing Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 230000006978 adaptation Effects 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 240000007643 Phytolacca americana Species 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000001698 pyrogenic effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/16—Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrostatic Separation (AREA)
Abstract
The invention discloses a wet-electric dust removal method and a wet-electric dust removal device for flue gas generated in fire refining of secondary lead, which comprise the following steps: the method comprises the following steps: lead liquid produced by a smelting furnace flows to a refined lead pan, smoke overflows and scatters upwards to lift in the production process, the lead liquid is conveyed into a cooling barrel of a dust removal device through a dust collection cover and an air inlet pipe on the upper part of the lead pan, the lead liquid is precipitated through an advanced inclined plate sedimentation tank after ash water is collected, the lead liquid is output to an ash water treatment filter through a pump to be treated and then is filtered, slag and dust particles are removed, treated clean water enters a clean water tank and is reused in an annular water pipe and a desulfurizer, the removed sludge is conveyed into a side-blowing furnace to be smelted again, the operation inspection is carried out, the water consumption requirement of the device can be met by the treated clean water, suspended particulate matters in the water are obviously reduced, in addition, the cyclic use of an ash water treatment system is realized, the water is saved, the.
Description
Technical Field
The invention relates to the technical field of dust removal, in particular to a wet electric dust removal method and device for secondary lead fire refining flue gas.
Background
With the continuous development of the lead industry, the consumption of lead raw materials is larger and larger, the quantity of the raw materials which can be collected is smaller, so that the recycling of lead naturally becomes the focus of the lead industry, various auxiliary materials such as a slag remover, a copper remover, sodium hydroxide, red phosphorus, sodium nitrate, rosin and other reagents need to be added into a high-temperature lead pan in the secondary lead refining process so as to achieve the effects of removing slag and copper, nickel, arsenic, tin, antimony and the like, a large amount of lead smoke dust can be generated in the process, the smoke temperature is high, the smoke dust amount is large and the smoke dust composition is complex, the smoke gas not only contains heavy metal smoke dust, but also contains components such as aerosol, mineral oil and the like, and particularly, the smoke dust of a few tiny particles is difficult to remove.
The wet electric dust remover dust removal effect of present adoption is better, but will maintain and change inside anode tube after using for a long time, and the installation and the dismantlement of present anode tube are all comparatively troublesome, consequently need waste a large amount of time when maintaining or changing anode tube, need handle the flue gas before removing dust in addition for the smoke and dust reaches wet saturation state, but not only efficiency is poor through the mode that sprays many times on the market, and the cost is higher moreover.
Disclosure of Invention
In order to overcome the technical problems, the invention aims to provide a wet electric dust removal method and device for flue gas generated in fire refining of secondary lead.
The purpose of the invention can be realized by the following technical scheme:
a wet electric dust removal method for secondary lead fire refining flue gas comprises the following steps:
the method comprises the following steps: lead liquid produced in a smelting furnace flows to a refined lead pan, smoke overflows and scatters upwards to lift in the production process, the lead liquid is sent into a cooling barrel of a dust removal device through a dust collection cover and an air inlet pipe on the upper portion of the lead pan, a water suction pump is started at the moment, meanwhile, the smoke passes through an air vent on a filter box and passes through microporous ceramics, so that large-particle magazines in the smoke are adsorbed, clean water in a clean water tank is pumped out through a communicating pipe by the water suction pump, the clean water is sent into an annular water pipe through an inlet pipe, water is sprayed out through a mist spray gun, and the smoke is contacted with the smoke generated by the air inlet pipe;
step two: at the moment, the wet and saturated flue gas rises in the anode tube, a cathode line on a cathode beam is started, smoke dust and mist in the flue gas are charged through a high-voltage electric field to form charged ions, the charged ions move to an electrode with opposite charges, the charged ions discharge after reaching the electrode to form neutral dust mist particles, and the neutral dust mist particles are deposited on the electrode to agglomerate and fall;
step three: the dedusted flue gas enters the desulfurizer, passes through the flow equalizing layer, the spraying filler layer and the defogging layer, is sprayed with alkali liquor to continuously remove sulfur dioxide and heavy metal particles in the flue gas, and is discharged through a chimney;
step four: at the moment, water with the magazines falls into a sedimentation tank through an opening at the bottom of a dedusting barrel for sedimentation, the water is output to a grey water treatment filter through a pump and then is filtered to remove slag and dust particles, and the treated clean water is sent to the interior of a clean water tank and is reused in a desulfurizer and a cooling barrel;
step five: when the anode tube needs to be cleaned or replaced, the first limiting plate is pushed to move upwards firstly, so that the limiting groove in the first limiting plate is not contacted with the outer surface of the anode tube any more, meanwhile, the baffle plate swings under the action of the cambered surface on one side of the supporting block and the short shaft, then the threaded rod is pushed upwards through the adjusting handle, the adjusting handle is rotated, the jacking block is abutted against the baffle plate to be contacted, and the baffle plate is in a horizontal state;
the device is characterized in that the ash water is collected and then is precipitated in an advanced inclined plate sedimentation tank, the ash water is output to an ash water treatment filter through a pump and then is treated, slag and dust particles are filtered, treated clean water enters a clean water tank and is reused in an annular water pipe and a desulfurizer, the removed sludge is conveyed to a side-blown furnace for smelting again, the treated clean water can meet the water using requirement of the device through operation inspection, suspended particles in water are obviously reduced, in addition, the ash water treatment system is recycled, water is saved, the treatment pressure and the medicine consumption of a wastewater station are also reduced, and the saving effect is obvious.
The invention also discloses a wet electric dust removal device for the flue gas generated in the pyrogenic refining of the secondary lead, which comprises the following steps: the device comprises a cooling barrel, a dedusting barrel and a desulfurizer, wherein the dedusting barrel is positioned above the cooling barrel, a plurality of anode tubes are arranged in the dedusting barrel, the bottom ends of the anode tubes penetrate through the cooling barrel and extend into the cooling barrel, a cathode beam is arranged between two sides of the inner wall of the dedusting barrel, a cathode line is arranged at the bottom of the cathode beam and is positioned in the anode tubes, supporting plates are fixedly connected to two sides of the inner wall of the dedusting barrel, a first limiting plate is arranged between two opposite sides of the supporting plates, a supporting groove is formed in one side of the supporting plate, a supporting block is fixedly connected to one side of the inner wall of the supporting groove, sliding plates are fixedly connected to the front side and the rear side of two ends of the supporting plate, a short shaft is rotatably connected to one opposite side of the two sliding plates, and a baffle is fixedly connected between two opposite ends of the short, threaded sleeve has been run through at the top of backup pad, threaded sleeve's internal surface threaded connection has the threaded rod, the top fixedly connected with kicking block of threaded rod, the bottom fixedly connected with adjusting handle of threaded rod, the both sides of dust removal bucket inner wall and the equal fixedly connected with second limiting plate in rear that is located the backup pad, the external surface fixedly connected with fixed plate of positive pole pipe.
As a further scheme of the invention: the top of kicking block contacts with one side of baffle, the spacing groove has all been seted up to one side that first limiting plate is relative with the second limiting plate, the internal surface of spacing groove and the surface looks adaptation of positive pole pipe, the bottom of fixed plate contacts with the top of cooling bucket.
As a further scheme of the invention: the equal fixedly connected with stopper in both sides of dust removal bucket inner wall, the equal fixedly connected with fixture block in both ends of fixed plate, the draw-in groove has been seted up at the top of stopper, the thing groove has been seted up to one side of draw-in groove inner wall, put the spacing spring of one side fixedly connected with of thing inslot wall, the one end fixedly connected with dog of spacing spring, the top fixedly connected with poking rod of dog, the top of poking rod runs through the stopper and extends to the outside of stopper, the cooperation groove has been seted up to one side of fixture block.
As a further scheme of the invention: the inner surface of draw-in groove and the surface looks adaptation of stopper, the surface of dog and the interior surface looks adaptation of cooperation groove, the surface of dog and the interior surface looks adaptation of putting the thing groove.
As a further scheme of the invention: the interior of the cooling barrel is provided with an annular water pipe, the outer surface of the annular water pipe is fixedly connected with a plurality of fixed sleeves, one side of each fixed sleeve is fixedly connected with one side of the inner wall of the cooling barrel, the inner surface and the outer surface of each annular water pipe are fixedly connected with a mist spray gun, the outer surface of the cooling barrel is fixedly connected with a mounting plate, the top of the mounting plate is fixedly connected with a clean water tank, one side of the clean water tank is penetrated with a communicating pipe, the top of the mounting plate is fixedly connected with a water suction pump positioned at one side of the clean water tank, one end of the water suction pump is communicated with one end of the communicating pipe, the water outlet end of the water suction pump is communicated with a water inlet pipe, one end of the water inlet pipe sequentially penetrates through the cooling barrel and the annular water pipe and extends to the interior, the inside of filter cartridge is provided with micropore pottery, a plurality of air vent has been seted up to filter cartridge's surface.
As a further scheme of the invention: an air inlet pipe is installed on one side of the dedusting barrel, one end of the air inlet pipe penetrates through the cooling barrel and extends to the inside of the cooling barrel, and supporting legs are fixedly connected to the periphery of the bottom of the mounting plate.
The invention has the beneficial effects that:
(1) according to the invention, after grey water is collected, the grey water is firstly precipitated in the inclined plate sedimentation tank, the grey water is output to the grey water treatment filter through the pump and then is treated, slag and dust particles are filtered, the treated clean water enters the clean water tank and is reused in the annular water pipe and the desulfurizer, the removed sludge is sent to the side-blown furnace for smelting again, after operation inspection, the treated clean water can meet the water requirement of the device, suspended particulate matters in water are obviously reduced, in addition, the cyclic use of the grey water treatment system saves water, the treatment pressure of a waste water station and the consumption of medicines are also reduced, and the saving effect is obvious.
(2) In the invention, a plurality of anode tubes are arranged in a dust removing barrel, the bottom ends of the anode tubes penetrate through the cooling barrel and extend to the interior of the cooling barrel, a cathode beam is arranged between two sides of the inner wall of the dust removing barrel, a cathode line is arranged at the bottom of the cathode beam and is positioned in the anode tube, supporting plates are fixedly connected with two sides of the inner wall of the dust removing barrel, a first limiting plate is arranged between two opposite sides of the two supporting plates, a supporting groove is arranged at one side of each supporting plate, a supporting block is fixedly connected with one side of the inner wall of the supporting groove, sliding plates are fixedly connected with the front side and the rear side of two ends of each supporting plate, short shafts are rotatably connected with one opposite sides of the two sliding plates, a baffle plate is fixedly connected between one opposite ends of the two short shafts, a threaded sleeve penetrates through the top, the bottom end of the threaded rod is fixedly connected with an adjusting handle, both sides of the inner wall of the dust removing barrel and the rear part of the supporting plate are fixedly connected with a second limiting plate, the outer surface of the anode tube is fixedly connected with a fixed plate, the top of the top block is contacted with one side of the baffle plate, one side of the first limiting plate, which is opposite to the second limiting plate, is provided with a limiting groove, the inner surface of the limiting groove is matched with the outer surface of the anode tube, the bottom of the fixed plate is contacted with the top of the cooling barrel, both sides of the inner wall of the dust removing barrel are fixedly connected with limiting blocks, both ends of the fixed plate are fixedly connected with clamping blocks, the tops of the limiting blocks are provided with clamping grooves, one side of the inner wall of the clamping grooves is provided with a storage groove, one side of the inner wall of the storage groove is, the cooperation groove has been seted up to one side of fixture block, be used for carrying on spacingly to the anode tube through set up the spacing groove on first limiting plate and the second limiting plate in anode tube both sides, utilize the cooperation relation of fixture block and draw-in groove, simultaneously through putting dog and the cooperation groove of thing inslot, can carry on spacingly with the anode tube, and the sliding plate of supporting groove and first limiting plate both sides in the cooperation backup pad, upwards promote first limiting plate and make the height of first limiting plate be higher than the anode tube, rotate the threaded rod again and make the kicking block withstand the baffle, thereby contact baffle and supporting shoe, the rethread promotes the poker rod, can carry out quick dismantlement and installation with the anode tube, when maintaining and maintaining the anode tube through this structure, can be quick take off it, improve its work efficiency.
(3) In the invention, an annular water pipe is arranged in a cooling barrel, a plurality of fixing sleeves are fixedly connected to the outer surface of the annular water pipe, one side of each fixing sleeve is fixedly connected with one side of the inner wall of the cooling barrel, the inner surface and the outer surface of each annular water pipe are fixedly connected with a mist spray gun, the outer surface of the cooling barrel is fixedly connected with a mounting plate, the top of the mounting plate is fixedly connected with a clean water tank, a communicating pipe penetrates through one side of the clean water tank, a water suction pump is fixedly connected to the top of the mounting plate and one side of the clean water tank, one end of the water suction pump is communicated with one end of the communicating pipe, the water outlet end of the water suction pump is communicated with a water inlet pipe, one end of the water inlet pipe sequentially penetrates through the cooling barrel and the annular water pipe and extends to the inside of, a plurality of air vent has been seted up to the surface of filter cartridge, through set up the support frame between the both sides at cooling bucket inner wall, and set up the filter cartridge who places microporous ceramic on the support frame, utilize the suction pump to deliver to in the annular water pipe with the water in the clear water tank, a plurality of vaporific spray gun blowout moisture on the cooperation annular water pipe, when the flue gas gets into the inside of cooling bucket, pass the air vent on the filter cartridge earlier, adsorb the smoke and dust of macroparticle through microporous ceramic, can reduce the speed that the smoke and dust rises simultaneously, and vaporific spray gun spun drop of water this moment, can be abundant contact with the smoke and dust, make the smoke and dust can reach wet saturation state, compared with prior art, need not to set up too much pipeline and spray, can improve its efficiency in reduce cost, easily promote.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the dust removing barrel according to the present invention;
FIG. 3 is a partial sectional view of the support plate of the present invention;
FIG. 4 is a plan view showing the internal structure of an anode tube according to the present invention;
FIG. 5 is a top view of the internal structure of the stop block of the present invention;
fig. 6 is a schematic view of the internal structure of the cooling barrel according to the present invention.
In the figure: 1. a cooling barrel; 2. a dust removal barrel; 3. a desulfurizer; 4. an anode tube; 5. a cathode beam; 6. a cathode line; 7. a support plate; 8. a first limit plate; 9. a support groove; 10. a support block; 11. a sliding plate; 12. a minor axis; 13. a baffle plate; 14. a threaded sleeve; 15. a threaded rod; 16. a top block; 17. adjusting the handle; 18. a second limiting plate; 19. a fixing plate; 20. a limiting block; 21. a clamping block; 22. a card slot; 23. a storage groove; 24. a limiting spring; 25. a stopper; 26. a poke rod; 27. a mating groove; 28. an annular water pipe; 29. fixing a sleeve; 30. a mist spray gun; 31. a clear water tank; 32. a communicating pipe; 33. a water pump; 34. a water inlet pipe; 35. supporting legs; 36. a support frame; 37. a filter cartridge; 38. a vent hole; 39. an air inlet pipe; 40. and (7) mounting the plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, a wet electric dust removing method and device for flue gas from fire refining of secondary lead includes the following steps:
the method comprises the following steps: lead liquid produced in a smelting furnace flows to a refined lead pan, smoke overflows and scatters upwards to lift in the production process, the lead liquid is sent into a cooling barrel 1 of a dust removal device through a dust collection cover on the upper portion of the lead pan and an air inlet pipe 39, a water suction pump 33 is started at the moment, meanwhile, the smoke passes through an air vent 38 on a filter box 37 and passes through microporous ceramics, so that large-particle magazines in the smoke are adsorbed, clean water in a clean water tank 31 is pumped out by the water suction pump 33 through a communicating pipe 32, the clean water is sent into an annular water pipe 28 through an inlet pipe 34, water is sprayed out through a mist spray gun 30, and the smoke is contacted with the smoke generated by the air inlet pipe 39;
step two: at the moment, the wet and saturated flue gas rises in the anode tube 4, the cathode wire 6 on the cathode beam 5 is started, the smoke dust and the fog in the flue gas are charged through a high-voltage electric field to form charged ions, the charged ions move to the electrode with opposite charges, the charged ions discharge after reaching the electrode to form neutral dust fog particles, and the neutral dust fog particles are deposited on the electrode to be agglutinated and fall;
step three: the dedusted flue gas enters the desulfurizer 3, passes through the flow equalizing layer, the spraying filler layer and the defogging layer, is sprayed with alkali liquor to continuously remove sulfur dioxide and heavy metal particles in the flue gas, and is discharged through a chimney;
step four: at the moment, water with impurities falls into a sedimentation tank through an opening at the bottom of the dedusting barrel 2 for sedimentation, the water is output to a grey water treatment filter through a pump and then is filtered to remove slag and dust particles, and the treated clean water is sent to the interior of a clean water tank 31 and is reused in a desulfurizer 3 and a cooling barrel 1;
step five: when the anode tube 4 needs to be cleaned or replaced, the first limiting plate 8 is firstly pushed to move upwards, so that the limiting groove on the first limiting plate 8 is not contacted with the outer surface of the anode tube 4 any more, while the flap 13 is caused to swing by the action of the cambered surface on one side of the support block 10 and the stub shaft 12, then the threaded rod 15 is pushed upwards by the adjusting handle 17, and then the adjusting handle 17 is rotated, so that the top block 16 is abutted against the baffle 13 to be in contact with the baffle 13 and is in a horizontal state, the first limit plate 8 can be limited by the matching of the thread on the threaded rod 15 and the threaded sleeve 14, at this time, by pushing the poke rod 26, the stopper 25 moves towards the inside of the storage groove 23, so that the limit spring 24 is compressed, the fixture block 21 can be lifted from the inside of the matching groove 27 at the moment, the anode tube 4 is pulled out from the inside of the dust removing barrel 2 together with the anode tube 4, and the anode tube 4 can be cleaned at the moment;
the ash water is collected and then precipitated in an advanced inclined plate sedimentation tank, the ash water is output to an ash water treatment filter through a pump and then is treated to be filtered, slag and dust particles are removed, the treated clean water enters a clean water tank and is reused in the annular water pipe 28 and the desulfurizer 3, the removed sludge is sent to a side-blown furnace to be smelted again, through operation inspection, the treated clean water can meet the water consumption requirement of the device, suspended particulate matters in the water are obviously reduced, in addition, the ash water treatment system is recycled, water is saved, the treatment pressure and the medicine consumption of a wastewater station are also reduced, and the saving effect is obvious.
The invention also discloses a wet electric dust removal device for the flue gas generated in the pyrogenic refining of the secondary lead, which comprises the following steps: including cooling bucket 1, be located the dust removal bucket 2 of cooling bucket 1 top and be located the desulfurizer 3 of dust removal bucket 2 top, desulfurizer 3 is prior art, and inside is provided with the homoflow layer, sprays packing layer and defogging layer, the inside of dust removal bucket 2 is provided with a plurality of anode tube 4, the bottom of anode tube 4 runs through cooling bucket 1 and extends to the inside of cooling bucket 1, be provided with cathode beam 5 between the both sides of dust removal bucket 2 inner wall, the bottom of cathode beam 5 is provided with cathode ray 6, cathode ray 6 is located the inside of anode tube 4, the equal fixedly connected with backup pad 7 in both sides of dust removal bucket 2 inner wall, two be provided with first limiting plate 8 between the relative one side of backup pad 7, support groove 9 has been seted up to one side of backup pad 7, support shoe 10 is fixedly connected with to one side of support groove 9 inner wall, preceding a plurality of both ends of backup pad 7, The dust removing device comprises sliding plates 11, short shafts 12 are connected to one opposite sides of the sliding plates 11 in a rotating mode, baffle plates 13 are fixedly connected between the opposite ends of the short shafts 12, threaded sleeves 14 penetrate through the tops of the supporting plates 7, threaded rods 15 are connected to the inner surfaces of the threaded sleeves 14 in a threaded mode, top blocks 16 are fixedly connected to the top ends of the threaded rods 15, adjusting handles 17 are fixedly connected to the bottom ends of the threaded rods 15, second limiting plates 18 are fixedly connected to the two sides of the inner wall of the dust removing barrel 2 and located behind the supporting plates 7, and fixing plates 19 are fixedly connected to the outer surfaces of the anode tubes 4.
In the invention, the top of the top block 16 is contacted with one side of the baffle 13, the opposite sides of the first limiting plate 8 and the second limiting plate 18 are respectively provided with a limiting groove, the inner surface of the limiting groove is matched with the outer surface of the anode tube 4, and the bottom of the fixing plate 19 is contacted with the top of the cooling barrel 1.
In the invention, both sides of the inner wall of the dedusting barrel 2 are fixedly connected with limit blocks 20, both ends of the fixed plate 19 are fixedly connected with clamp blocks 21, the top of the limit block 20 is provided with a clamp groove 22, one side of the inner wall of the clamp groove 22 is provided with a storage groove 23, one side of the inner wall of the storage groove 23 is fixedly connected with a limit spring 24, one end of the limit spring 24 is fixedly connected with a stop block 25, the top of the stop block 25 is fixedly connected with a poking rod 26, the top end of the poking rod 26 penetrates through the limit block 20 and extends to the outside of the limit block 20, one side of the clamp block 21 is provided with a matching groove 27, the first limit plate 8 and the second limit plate 18 at both sides of the anode tube 4 are provided with limit grooves for limiting the anode tube 4, and the matching relation between the clamp block 21 and the clamp groove 22 is utilized, can carry on spacingly with anode tube 4, and the sliding plate 11 of supporting groove 9 and the 8 both sides of first limiting plate in the cooperation backup pad 7, upwards promote first limiting plate 8 and make first limiting plate 8 highly be higher than anode tube 4, rotate threaded rod 15 again and make kicking block 16 withstand baffle 13, thereby contact baffle 13 and supporting shoe 10, rethread promotes poker rod 26, can be with carrying out quick dismantlement and installation with anode tube 4, when maintaining and maintaining anode tube 4 through this structure, can be quick take off it, improve its work efficiency.
In the invention, the inner surface of the clamping groove 22 is matched with the outer surface of the limiting block 20, the outer surface of the stop block 25 is matched with the inner surface of the matching groove 27, and the outer surface of the stop block 25 is matched with the inner surface of the article holding groove 23.
In the invention, an annular water pipe 28 is arranged inside a cooling barrel 1, a plurality of fixing sleeves 29 are fixedly connected to the outer surface of the annular water pipe 28, one side of each fixing sleeve 29 is fixedly connected with one side of the inner wall of the cooling barrel 1, the inner surface and the outer surface of the annular water pipe 28 are both fixedly connected with a mist spray gun 30, the outer surface of the cooling barrel 1 is fixedly connected with a mounting plate 40, the top of the mounting plate 40 is fixedly connected with a clean water tank 31, a communicating pipe 32 penetrates through one side of the clean water tank 31, the top of the mounting plate 40 is fixedly connected with a water suction pump 33 positioned at one side of the clean water tank 31, one end of the water suction pump 33 is communicated with one end of the communicating pipe 32, the water outlet end of the water suction pump 33 is communicated with a water inlet pipe 34, one end of the water inlet pipe 34 sequentially penetrates through the cooling barrel 1 and the annular water pipe 28 and, the top of the supporting frame 36 is fixedly connected with a filter box 37, microporous ceramics are arranged inside the filter box 37, a plurality of vent holes 38 are formed in the outer surface of the filter box 37, the supporting frame 36 is arranged between the two sides of the inner wall of the cooling barrel 1, the filter box 37 for placing the microporous ceramics is arranged on the supporting frame 36, water in the clean water tank 31 is conveyed into the annular water pipe 28 by using the water suction pump 33, and is matched with the plurality of mist spray guns 30 on the annular water pipe 28 to spray water, when the smoke enters the cooling barrel 1, the smoke firstly passes through the vent holes 38 on the filter box 37, large-particle smoke dust is adsorbed by the microporous ceramics, meanwhile, the rising speed of the smoke dust can be reduced, and water drops sprayed by the mist spray guns 30 can be fully contacted with the smoke dust, so that the smoke dust can reach a wet saturation state, compared with the prior art, excessive pipelines are not required, the efficiency can be improved while the cost is reduced, and the popularization is easy.
In the invention, one side of the dedusting barrel 2 is provided with an air inlet pipe 39, one end of the air inlet pipe 39 penetrates through the cooling barrel 1 and extends into the cooling barrel 1, and the periphery of the bottom of the mounting plate 40 is fixedly connected with the supporting legs 35.
Meanwhile, the content which is not described in detail in the specification belongs to the prior art which is well known to those skilled in the art, on the other hand, each electric part in the device is electrically connected with the control switch, and the working logic and the working sequence among each electric part can be controlled by programming and manpower.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.
Claims (7)
1. A wet electric dust removal method for secondary lead fire refining flue gas is characterized by comprising the following steps:
the method comprises the following steps: lead liquid produced in a smelting furnace flows to a refined lead pan, smoke overflows and scatters upwards to lift in the production process, the lead liquid is sent into a cooling barrel (1) of a dust removal device through a dust collection cover on the upper part of the lead pan and an air inlet pipe (39), a water suction pump (33) is started at the moment, meanwhile, the smoke passes through an air vent (38) on a filter box (37) and passes through microporous ceramics, so that large-particle magazines in the smoke are adsorbed, clean water in a clean water tank (31) is pumped out by the water suction pump (33) through a communicating pipe (32), the smoke is sent into an annular water pipe (28) through an inlet pipe (34), and water is sprayed out through a mist spray gun (30), so that the smoke is in contact with the smoke generated by the air inlet pipe (39), and heat can be;
step two: at the moment, the wet and saturated flue gas rises in the anode tube (4), a cathode line (6) on a cathode beam (5) is started, smoke dust and mist in the flue gas are charged through a high-voltage electric field to form charged ions, the charged ions move to an electrode with opposite charges, the charged ions discharge after reaching the electrode to form neutral dust mist particles, and the neutral dust mist particles are deposited on the electrode to agglomerate and fall;
step three: the dedusted flue gas enters the desulfurizer (3), passes through the flow equalizing layer, the spraying filler layer and the demisting layer, is continuously subjected to removal of sulfur dioxide and heavy metal particles in the flue gas in a mode of spraying alkali liquor, and is discharged through a chimney;
step four: at the moment, water with magazines falls into a sedimentation tank through an opening at the bottom of the dedusting barrel (2) for sedimentation, the water is output to a grey water treatment filter through a pump and then is filtered to remove slag and dust particles, and the treated clean water is sent to the interior of a clean water tank (31) and is reused in a desulfurizer (3) and a cooling barrel (1);
step five: when the anode tube (4) needs to be cleaned or replaced, the first limiting plate (8) is firstly pushed to move upwards, so that a limiting groove in the first limiting plate (8) is not contacted with the outer surface of the anode tube (4) any more, meanwhile, the baffle (13) swings under the action of the cambered surface on one side of the supporting block (10) and the short shaft (12), then the threaded rod (15) is pushed upwards through the adjusting handle (17), the adjusting handle (17) is rotated, the jacking block (16) jacks the baffle (13) to be contacted and is in a horizontal state, the first limiting plate (8) can be limited through the matching of the threads on the threaded rod (15) and the threaded sleeve (14), at the moment, the poking rod (26) is pushed, the stop block (25) moves towards the inside of the object placing groove (23), so that the limiting spring (24) is compressed, and at the moment, the clamping block (21) can be lifted from the inside of the matching groove (27, the anode tube (4) is pulled out of the dust removing barrel (2) together with the anode tube (4), and the anode tube (4) can be cleaned at the moment.
2. The wet electric dust removal device for the secondary lead fire refining flue gas is characterized by comprising a cooling barrel (1), a dust removal barrel (2) positioned above the cooling barrel (1) and a desulfurizer (3) positioned above the dust removal barrel (2), wherein a plurality of anode tubes (4) are arranged inside the dust removal barrel (2), the bottom ends of the anode tubes (4) penetrate through the cooling barrel (1) and extend into the cooling barrel (1), a cathode beam (5) is arranged between two sides of the inner wall of the dust removal barrel (2), a cathode wire (6) is arranged at the bottom of the cathode beam (5), the cathode wire (6) is positioned inside the anode tubes (4), supporting plates (7) are fixedly connected to two sides of the inner wall of the dust removal barrel (2), a first limiting plate (8) is arranged between two opposite sides of the supporting plates (7), a supporting groove (9) is formed in one side of the supporting plates (7), one side of the inner wall of the supporting groove (9) is fixedly connected with a supporting block (10), the front and rear sides of the two ends of the supporting plate (7) are fixedly connected with sliding plates (11), the opposite sides of the two sliding plates (11) are rotatably connected with short shafts (12), a baffle plate (13) is fixedly connected between the opposite ends of the two short shafts (12), a threaded sleeve (14) penetrates through the top of the supporting plate (7), a threaded rod (15) is connected with the inner surface of the threaded sleeve (14) in a threaded manner, the top end of the threaded rod (15) is fixedly connected with a top block (16), the bottom end of the threaded rod (15) is fixedly connected with an adjusting handle (17), the two sides of the inner wall of the dust removing barrel (2) and the rear part of the supporting plate (7) are fixedly connected with second limiting plates (18), the outer surface of the anode tube (4) is fixedly connected with a fixing plate (19).
3. The wet electric dust removal device for flue gas generated in fire refining of secondary lead according to claim 2, wherein the top of the top block (16) is in contact with one side of the baffle (13), one side of the first limiting plate (8) opposite to the second limiting plate (18) is provided with a limiting groove, the inner surface of the limiting groove is matched with the outer surface of the anode tube (4), and the bottom of the fixing plate (19) is in contact with the top of the cooling barrel (1).
4. The wet electric dust collector of secondary lead pyrometallurgical refining flue gas of claim 2, characterized in that, the equal fixedly connected with stopper (20) in both sides of dust removal bucket (2) inner wall, the equal fixedly connected with fixture block (21) in both ends of fixed plate (19), draw-in groove (22) have been seted up at the top of stopper (20), one side of draw-in groove (22) inner wall has been seted up and has been put thing groove (23), one side fixedly connected with spacing spring (24) of putting thing groove (23) inner wall, the one end fixedly connected with dog (25) of spacing spring (24), the top fixedly connected with poker rod (26) of dog (25), stopper (20) are run through to the top of poker rod (26) and extend to the outside of stopper (20), cooperation groove (27) have been seted up to one side of fixture block (21).
5. The wet electro-dusting device for flue gas generated in fire refining of secondary lead according to claim 4, wherein the inner surface of the clamping groove (22) is matched with the outer surface of the limiting block (20), the outer surface of the stopper (25) is matched with the inner surface of the matching groove (27), and the outer surface of the stopper (25) is matched with the inner surface of the storage groove (23).
6. The wet electric dust collector of flue gas of secondary lead fire refining of claim 2, characterized in that, the inside of cooling bucket (1) is provided with annular water pipe (28), the outer fixed surface of annular water pipe (28) is connected with a plurality of fixed covers (29), one side of fixed cover (29) and one side fixed connection of cooling bucket (1) inner wall, the internal surface and the surface of annular water pipe (28) all fixedly connected with vaporific spray gun (30), the outer fixed surface of cooling bucket (1) is connected with mounting panel (40), the top fixedly connected with clear water tank (31) of mounting panel (40), clear water tank (31) one side has run through communicating pipe (32), the top of mounting panel (40) just is located one side fixedly connected with suction pump (33) of clear water tank (31), the one end and the one end of communicating pipe (32) of suction pump (33) communicate, the play water end intercommunication of suction pump (33) has inlet tube (34), the one end of inlet tube (34) runs through cooling bucket (1) and annular water pipe (28) in proper order and extends to the inside of annular water pipe (28), fixedly connected with support frame (36) between the both sides of cooling bucket (1) inner wall, the top fixedly connected with filter box (37) of support frame (36), the inside of filter box (37) is provided with microporous ceramic, a plurality of air vent (38) have been seted up to the surface of filter box (37).
7. The wet electric dust removal device for flue gas generated in fire refining of secondary lead according to claim 6, wherein an air inlet pipe (39) is installed at one side of the dust removal barrel (2), one end of the air inlet pipe (39) penetrates through the cooling barrel (1) and extends into the cooling barrel (1), and supporting legs (35) are fixedly connected to the periphery of the bottom of the mounting plate (40).
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