CN203886666U - Chambered aerosol trapping device - Google Patents

Abstract

The utility model discloses a chambered aerosol trapping device which is a special device for removing hazes from industrial tail gas. The device is structurally characterized in that partition walls (2) continuously extend upwards from the bottom to a position above a second operator lifting platform (7) and are used for dividing the inside of the device into independent chamber bodies bottom of which are not communicated with one another; aerosol trapping cylinders are mounted at the upper parts of the chamber bodies; corona wires are mounted inside the aerosol trapping cylinders; ventilation doors with quantity corresponding to that of the chamber bodies are mounted at joints of gas inlets (1) and the chamber bodies; an independent dirt collecting hopper (4) is mounted at the bottom of each chamber body; high-pressure chambers (13) of which the quantity is four times the quantity of the chamber bodies are mounted in the long axis direction of a third operator lifting platform (9); grouped power off and grouped washing can be realized.

Description

Cavity-separating aerosol collection device

Technical field:

The utility model relates to a kind of equipment for after-treatment of industrial tail gas.

Background technology:

At present, the processing before the discharge of industrial tail gas generally: first use centrifugal dust-removing, then with static or bag-type dust, finally use wet type desulfurizing, denitration, in the white plume of discharge, comprise a large amount of aerosols and micronic dust, generally reach 70mg/m ³(dry weight, lower with), and aerosol and the micronic dust chief component of haze just.China's heavy chemical industry production capacity is very large, and as output of steel accounts for the world 51%, cement output accounts for the world 62%, and electric power is again to take thermoelectricity as main, and discharge is often not up to standard, and (discharge standard is: in the recent period for being not more than 30mg/m ³, administer haze this year, prepare to bring up to be not more than 20mg/m ³), these industry be all the Coal and coke that burns be the energy, so cause China's haze serious, air quality extreme difference, PM10, PM2.5 severe overweight.

Summary of the invention:

The utility model discloses a kind of cavity-separating aerosol collection device, and object is: remove aerosol and micronic dust in industrial tail gas, recover the clean sky of China's blue sky and white cloud.

The utility model has been applied for patent of invention on the same day application simultaneously.

The utility model structure comprises air inlet, partition wall, sewage door, dirt-collecting bucket, people's platform on first, people's platform on second, people's platform on the 3rd, exterior wall, hyperbaric chamber top cover, gas collection bucket, exhaust outlet, hyperbaric chamber, high pressure is introduced horizontal cover, aerosol collection cylinder, corona wire, weight, crossbeam, girder, cover plate, high-field electrode, warm-air pipe, quartz tube, crossbeam suspension rod, hot blast endless tube, air curtain groove, high pressure is introduced standpipe, high pressure is introduced horizontal cylinder, axle of the air door, pulley, air door, it is characterized in that, partition wall upwards extends to people's platform top on second by bottom always, device interior separation is become to the not connected individual cavity in bottom, this cavity top is provided with aerosol collection cylinder, in aerosol collection cylinder, corona wire is installed, cavity bottom is empty, partition wall bottom extends in air inlet, junction at air inlet and cavity, the quantity air door corresponding with number of cavities is installed.Each cavity bottom is provided with independently dirt-collecting bucket.The long axis direction of people's platform on the 3rd, it is the hyperbaric chamber of 4 times of number of cavities that quantity is installed.

Detailed structure is:

The utility model has consisted of the ectosome of this device four sides exterior wall, ectosome one side lower part has air inlet, ectosome inside is provided with the end of to the partition wall that approaches top, partition wall is fixedly connected in inner skeleton, the interior separation of partition wall handle assembly becomes bottom and 5～10 not connected independent cavitys of middle part, and the internal structure of each cavity is identical, and bottom is all cavity, dirt-collecting bucket is all equipped with in bottom, and dirt-collecting bucket bottom is provided with closable sewage door.

The junction of air inlet and ectosome, a plurality of air doors that number is identical with separated cavity numbers are installed, it is following that its axle of the air door horizontal direction is arranged on air inlet, two angles that are not connected with axle of air door, respectively be fixedly connected with steel cable, these two steel wire ropes merge together by pulley, are finally wound on electric capstan, and electric capstan is arranged on the top of air inlet.Air door closes to less than vertical 70.Can close tight, put in place, Motor Drive capstan winch reversion during unlatching, steel wire rope unclamps, and air door relies on gravity fall, until fit with the bottom surface of air inlet, accomplishes to set level completely and opens.

There is upper people's platform of three maintenance use the outside of ectosome, and on each, the surrounding of people's platform is provided with railing, on the exterior wall of ectosome, has manhole and the visor of maintenance use.

Internal main structure is: 5～10 independent cavitys that are separated into by partition wall, the top of the inside of each cavity, the aerosol collection cylinder of vertical direction is installed, aerosol collection cylinder is circle or the long cylinder of hexagon that plastics are made, the surrounding of bottom seals, the inside of every aerosol collection cylinder is all passed through graphite spraying and is processed, and the corona wire that a lead-antimony alloy is made is all suspended at center in midair.The both sides, nearly top of partition wall are all provided with spray header, in each chamber both sides spray header be one group, can control separately water spray for every group.

The structure of high-pressure section: on the 3rd above people's platform, a plurality of columniform hyperbaric chambers are installed, each cavity has four hyperbaric chambers, these hyperbaric chambers are arranged in the both sides of the long axis direction of people's platform on the 3rd equably, hyperbaric chamber is cylindrical barrel, uses bolt to be fixedly connected with hyperbaric chamber top cover above, and a side is welded with warm-air pipe, warm-air pipe is connected with other warm-air pipe by warm-air pipe flange, and other warm-air pipe is connected with the hot air chamber that produces hot blast.Warm-air pipe opposite on hyperbaric chamber is provided with visor, in order to observe inner case, warmer cover plate is also installed around below, and electrical heating elements has been fixed in warmer cover plate inside, and electric heating electrode accesses electrical heating elements by electric energy.An other side in hyperbaric chamber also leaves manhole.Center bottom in hyperbaric chamber, be fixedly connected with the quartz tube that is useful on insulation, below the big hole that on the 3rd, people's platform reserves being sealed of quartz tube, cover plate is stamped in the top of quartz tube, and cover plate is the plectane of being made by glass epoxy, and middle macropore is high-field electrode fixedly, the negative dc high voltage electricity of 100KV is introduced by high-field electrode, cover plate a plurality of gas holes around, the effect of gas hole is downward blowing hot-air, can prevent that moisture from entering the internal sabotage insulation of quartz tube; The lower end of high-field electrode is fixedly connected with crossbeam suspension rod, and crossbeam suspension rod is introduced the central authorities of standpipe through high pressure, enters high pressure and introduces in horizontal cylinder, is fixedly connected with the end of crossbeam.High pressure introduces standpipe and the horizontal cylinder of high pressure introducing is all the short cylinder that steel plate is rolled into, high pressure is introduced the vertical high pressure that is welded in standpipe lower end and is introduced the middle part of horizontal cylinder and mutually connect, high pressure is introduced standpipe upper end and is welded in people's platform bottom on the 3rd, high pressure is introduced a horizontal cylinder the inner and is welded on exterior wall and connects, and outer end is introduced horizontal cover by bolt and high pressure and is fixedly connected with and seals.For further reinforced insulation, the middle part of introducing standpipe at high pressure is also welded with hot blast endless tube, and hot blast endless tube is annular steel pipe, and a side is welded with warm-air pipe and mutually connects, warm-air pipe is connected with other warm-air pipe by warm-air pipe flange. other warm-air pipe is connected with the hot air chamber that produces hot blast.The junction of introducing standpipe and hot blast endless tube at high pressure, also has air curtain groove in pipe, air curtain groove forms air curtain under hot wind action, further stops moisture to enter quartz tube inside.

Crossbeam is that a section is rectangular hollow square steel pipe, distance between two exterior wall short-axis directions of crossbeam Length Ratio also will be grown, stretch out outside two exterior walls at two ends, be hung on crossbeam suspension rod, middle unsettled between two exterior walls, between two crossbeams of every group above, be welded with girder, girder is also that section is rectangular short hollow square steel pipe, and the distance between Length Ratio two partition walls of girder is short; On girder, be fixedly connected with the corona wire that number equates with aerosol collection cylinder number, the bottom of corona wire is fixedly connected with weight, and corona wire is hung in the centre of aerosol collection cylinder.

Above the exterior wall of four sides, it is the gas collection bucket of butt four directions taper that profile is installed, and the top of gas collection bucket is provided with the exhaust outlet of cubic short cylinder shaped, the inner all non-structures of gas collection bucket and exhaust outlet.

During use, air inlet is accessed to boiler combustion waste gas after treatment, on high-field electrode in hyperbaric chamber, introduce many group 100kv high direct voltage negative electricity, simultaneously high-voltage positive electrode reliable ground, under the effect of high pressure negative electricity, aerosol and water smoke, fine, stickiness, the dust of high specific resistance, small metallic particles moves and adheres on aerosol collection cylinder inwall to aerosol collection cylinder one after another, under Action of Gravity Field, the dirt adhering on aerosol collection cylinder inwall can continue to flow down, enter in dirt-collecting bucket, if the words that sewage door is opened, will discharge from sewage draining exit, complete the aerocolloidal task of removing.

Sometimes the dirt on aerosol collection cylinder inwall too much too thick stream not under, this just needs to rinse, this device is owing to being to be separated into independently 5～10 independent cavitys, power supply is also controlled respectively, so can stop completely one group, rinse in turn, although scrubbing efficiency temporarily decreases, but still can guarantee lower than national standard.

The beneficial effects of the utility model are:

1. the highest dirt clearance of the present utility model can reach 99.99%, and clean effect is all better than centrifugal dust-removing, static or bag-type dust, can trap the little micronic dust to 1 μ m.

2. owing to being cavity-separating, high-pressure electrostatic is also grouping power supply, can stop one group and rinse separately in turn, removes haze efficiency higher than common wet static dedusting demister.

Accompanying drawing explanation:

Below in conjunction with the accompanying drawings:

Fig. 1 is stereoscopic figure of the present utility model.

Fig. 2 is the elevation of cutting open along long axis direction of the present utility model, and for knowing expression structure, the upper right corner retains appearance and do not cut open.

Fig. 3 is the detail of construction of high pressure introducing portion of the present utility model, the enlarged drawing of the upper left corner part of the elevation of namely cutting open along short-axis direction.

Fig. 4 is the horizontal direction cutaway view of laterally cutting open along middle part of the present utility model, owing to being that section is the repetitive structure of full symmetric, so only draw wherein one jiao.

Fig. 5 is the structure longitudinal profile schematic diagram of air inlet air door of the present utility model, uses Steel rope drive, does not draw its capstan winch and motor portion (capstan winch and motor are commercially available finished product).

Fig. 6 is near longitudinal profile structural representation sewage door of the present utility model.

In figure: 1. air inlet, 2. partition wall, 3. sewage door, 4. dirt-collecting bucket, 5. people's platform on first, 6. exterior wall, 7. people's platform on second, 8. railing, 9. people's platform on the 3rd, 10. hyperbaric chamber top cover, 11. gas collection buckets, 12. exhaust outlets, 13. hyperbaric chambers, 14. high pressure are introduced horizontal cover, 15. manholes, 16. visors, 17. visors, 18. aerosol collection cylinders, 19. corona wires, 20. weights, 21. crossbeams, 22. girders, 23. warmer cover plates, 24. electrical heating elements, 25. electric heating electrodes, 26. cover plates, 27. high-field electrodes, 28. gas holes, 29. warm-air pipes, 30. warm-air pipe flanges, 31. quartz tube, 32. crossbeam suspension rods, 33. hot blast endless tubes, 34. air curtain grooves, 35. high pressure are introduced standpipe, 36. high pressure are introduced horizontal cylinder, 37. axle of the air door, 38. pulleys, 39. air doors, 40. turbines, 41. worm screws, 42. turbine cases, 43. motor, 44. blowdown door-hinges, P. spray header.

The specific embodiment

See Fig. 1, the utility model has consisted of the ectosome of this device four sides exterior wall 6, ectosome one side lower part has air inlet 1, and exterior wall 6 and air inlet 1 are all that metallic plate is welded and through preservative treatment, lining plastic flitch (material: add the PP of fire retardant, conductive agent, lower same), see Fig. 2, ectosome inside is provided with the end of to the partition wall 2 that approaches top (height that has surpassed people's platform 7 on second), partition wall 2 is made by plastic plate, be fixedly connected in inner skeleton, the interior separation of partition wall 2 handle assemblies becomes bottom and 5～10 not connected independent cavitys of middle part, the internal structure of each cavity is identical, bottom is all cavity, independently dirt-collecting bucket 4 is all equipped with in bottom, dirt-collecting bucket 4 is strip four sides pyramidal structures, by plastic plate, be fixedly connected on metallic framework and make, dirt-collecting bucket 4 bottoms are provided with closable sewage door 3, the electrically operated valve that sewage door 3 is closed by the under shed reserving and rotation forms (seeing Fig. 6), the valve of the lower left corner the first cavity of Fig. 2 is opened, close for all the other 7, electrically operated valve is by motor 43, the worm screw 41 coaxial with motor 43, turbine 40, turbine case 42 forms, be fixedly connected with turbine 40 turbine wheel shaft be exactly blowdown door-hinge 44.

See Fig. 5, the junction of air inlet 1 and ectosome, a plurality of air doors 39 identical with separated cavity numbers are installed, air door 39 is rectangular, each air door 39 is to be made by steel skeleton external application plastic plate, its axle of the air door 37 is below, horizontal direction is installed, axle of the air door 37 two ends are provided with sliding bearing, air door 39 is fixedly connected on middle part one side of axle of the air door 37, two angles that are not connected with axle of air door 39, respectively be fixedly connected with steel cable, these two steel wire ropes merge together by pulley 38, finally be wound on electric capstan, electric capstan is commercially available finished product, be arranged on the top (not shown on figure) of air inlet 1.Air door 39 operation principles are the spitting image of the suspension bridge before ancient times city gates, by steel wire rope, upwards pull and close, article two, steel wire rope pulls two jiaos of air door 39, close to less than vertical 70 ° and can close tight, put in place, Motor Drive capstan winch reversion during unlatching, steel wire rope unclamps, and air door 39 relies on gravity fall, until fit with the bottom surface of air inlet 1, just set level completely and open.

There is upper people's platform of three maintenance use the outside of ectosome, they are: people's platform 5 on first, people's platform 9 on people's platform 7 and the 3rd on second, on each, the surrounding of people's platform is provided with the railing 8 that 1.1m is high, railing 8 is welded by iron pipe, on each, the stair of people's platform are arranged on the back side of air inlet 1, and Gu Tushang can't see.On the exterior wall 6 of ectosome, have the manhole 15 of maintenance use and observe the visor 16,17 of inner use, manhole 15 and visor 16,17 are all circular, manhole 15 diameter 600mm, screw the lid of manhole 15 with bolt at ordinary times, make it air tight, during maintenance, unload, staff just can dig into maintenance.

Internal main structure is shown in Fig. 2, Fig. 4, 5～10 independent cavitys that the inside of ectosome is separated into by partition wall 2, the top of the inside of each cavity, the aerosol collection cylinder 18 of vertical direction is installed, aerosol collection cylinder 18 is circle or long cylinders of hexagon that plastics are made, long 4.5～6m, the surrounding of bottom seals, can prevent that short circuit wind from leaking from the surrounding of aerosol collection cylinder 18, to improve except haze efficiency, for making its conduction, the inside of every aerosol collection cylinder 18 is all passed through graphite spraying and process or mix conductive agent when injection moulding, at every aerosol collection Tong18 center, all suspend the corona wire 19 that a lead-antimony alloy is made in midair, for raising the efficiency, every corona wire 19 is all shaped with fishbone prickle.The both sides, nearly top of partition wall 2 are all provided with spray header P, in each chamber both sides spray header P be one group, can control separately water spray for every group.

The structure of high-pressure section is shown in Fig. 3, on the 3rd above people's platform 9, a plurality of columniform hyperbaric chambers 13 are installed, the number that its number equals cavity is multiplied by 4, be that each cavity has four hyperbaric chambers 13 (number of cavity is 5～10, the number that equals partition wall 2 adds 1), these hyperbaric chambers are arranged in the both sides of the long axis direction of people's platform 9 on the 3rd equably, hyperbaric chamber 13 is cylindrical barrel that steel plate is made, use bolt to be fixedly connected with hyperbaric chamber top cover 10 above, one side is welded with warm-air pipe 29, warm-air pipe 29 is connected with other warm-air pipe by warm-air pipe flange 30, other warm-air pipe is connected with the hot air chamber that produces hot blast, the hair-dryer that the structure of hot air chamber and principle are sent out with barber shop blow head is identical, nothing but a bit large, repeat no more herein.Warm-air pipe 29 opposites on hyperbaric chamber 13 are provided with visor 16 in order to observe inner case, warmer cover plate 23 is around also installed below, warmer cover plate 23 is that plastic plate is made, electrical heating elements 24 has been fixed in inside, electrical heating elements 24 is M shape electric heating tubes, and electric heating electrode 25 accesses electrical heating elements 24 by electric energy.An other side in hyperbaric chamber 13 also leaves manhole (not shown on figure) to enter people's maintenance.13 the center bottom in hyperbaric chamber, be fixedly connected with the quartz tube 31 that is useful on insulation, below the big hole reserving on people's platform 9 on the 3rd being sealed of quartz tube 31, cover plate 26 is stamped in the top of quartz tube 31, cover plate 26 is plectanes of being made by glass epoxy, middle macropore is high-field electrode 27 fixedly, the negative dc high voltage electricity of 100KV is introduced by high-field electrode 27, cover plate 26 a plurality of gas holes 28 around, gas hole 28 is small through hole of vertical direction, effect is downward blowing hot-air, can prevent that moisture from entering the inside of quartz tube 31; The lower end of high-field electrode 27 is fixedly connected with crossbeam suspension rod 32, and crossbeam suspension rod 32 is reinforcing bars, and the central authorities that introduce standpipe 35 through being welded on the high pressure of people's platform 9 bottoms on the 3rd enter high pressure and introduce in horizontal cylinder 36, are fixedly connected with the end of crossbeam 21.High pressure introduces standpipe 35 and the horizontal cylinder 36 of high pressure introducing is all the short cylinder that steel plate is rolled into, high pressure is introduced the vertical high pressure that is welded in standpipe 35 lower ends and is introduced the middle part of horizontal cylinder 36 and mutually connect, high pressure is introduced standpipe 35 upper ends and is welded in people's platform 9 bottoms on the 3rd, high pressure is introduced horizontal cylinder 36 the inners and is welded on exterior wall 6 and connects, and outer end is introduced horizontal cover 14 by bolt and high pressure and is fixedly connected with and seals.For further reinforced insulation, the middle part of introducing standpipe 35 at high pressure is also welded with hot blast endless tube 33, hot blast endless tube 33 is annular steel pipes, one side is welded with warm-air pipe 29 and mutually connects, warm-air pipe 29 is connected with other warm-air pipe by warm-air pipe flange 30, and other warm-air pipe is connected with the hot air chamber that produces hot blast.The junction of introducing standpipe 35 and hot blast endless tube 33 at high pressure, also has air curtain groove 34, and air curtain groove is the slit of one section of one section of perforation of a circle, under hot wind action, forms air curtain, further stops moisture to enter quartz tube 31 inside.

Crossbeam 21 is that a section is rectangular hollow square steel pipe, distance between two exterior wall 6 short-axis directions of crossbeam 21 Length Ratio also will be grown, stretch out outside two exterior walls 6 at two ends, be hung on crossbeam suspension rod 32, middle unsettled between two exterior walls 6, between two crossbeams of every group above, be welded with girder 22, girder 22 is also that section is rectangular short hollow square steel pipe, and the distance between Length Ratio two partition walls 2 of girder 22 is short; On girder 22, be fixedly connected with the corona wire 19 that number equates with aerosol collection cylinder 18 numbers, the bottom of corona wire 19 is fixedly connected with the weight 20 that quality is 8kg, and corona wire 19 is hung in the centre of aerosol collection cylinder 18.

Above the exterior wall 6 of four sides, the gas collection bucket 11 of butt four directions taper is installed, the top of gas collection bucket 11 is provided with the exhaust outlet 12 of cubic short cylinder shaped, and gas collection bucket 11 and exhaust outlet 12 inside are empty, all non-structure.

During use, by air inlet 1 access boiler combustion waste gas after treatment, on high-field electrode 27 in hyperbaric chamber 13, introduce many group 100kv high direct voltage negative electricity, simultaneously high-voltage positive electrode reliable ground, under the effect of high pressure negative electricity, aerosol and water smoke, fine, stickiness, the dust of high specific resistance, small metallic particles moves and adheres on aerosol collection cylinder 18 inwalls to aerosol collection cylinder 18 one after another, under Action of Gravity Field, the dirt adhering on aerosol collection cylinder 18 inwalls can continue to flow down, enter in dirt-collecting bucket, if the words that sewage door 3 is opened, will get rid of from sewage draining exit, complete the aerocolloidal task of removing.

Sometimes the dirt on aerosol collection cylinder 18 inwalls too much too thick stream not under, this just needs to rinse, this device is owing to being to be separated into independently 5～10 independent cavitys, power supply is also controlled respectively, so can stop completely one group, rinse, although scrubbing efficiency temporarily decreases, but still can guarantee lower than national standard.

The highest dirt clearance of this device can reach 99.99%, and this is relevant through the time of aerosol collection cylinder 18 with waste gas, and 7s just can remove 99.99%, 5s can only remove 99.9%, 4s removal, 96%, 2.5s can remove 90%, but clearance is higher, equipment is huger, and cost is also higher.2.5s, 90% clearance are selected in overall balance, and waste gas dirt content after preliminary treatment is 70mg/m at present ³, after this device is processed, can reach 7mg/m ³, plume disappears substantially, meets discharging standards completely.If stop in 5 groups one group, rinse, discharge still can be low to moderate 14mg/m ³, or lower than national 20mg/m ³emission request.

Claims (3)

1. cavity-separating aerosol collection device, comprise air inlet (1), partition wall (2), sewage door (3), dirt-collecting bucket (4), people's platform (5) on first, people's platform (7) on second, people's platform (9) on the 3rd, exterior wall (6), hyperbaric chamber top cover (10), gas collection bucket (11), exhaust outlet (12), hyperbaric chamber (13), high pressure is introduced horizontal cover (14), aerosol collection cylinder (18), corona wire (19), weight (20), crossbeam (21), girder (22), cover plate (26), high-field electrode (27), warm-air pipe (29), quartz tube (31), crossbeam suspension rod (32), hot blast endless tube (33), air curtain groove (34), high pressure is introduced standpipe (35), high pressure is introduced horizontal cylinder (36), axle of the air door (37), pulley (38), air door (39), it is characterized in that, partition wall (2) upwards extends to people's platform (7) top on second by bottom always, device interior separation is become to the not connected individual cavity in bottom, this cavity top is provided with aerosol collection cylinder (18), corona wire (19) is installed in aerosol collection cylinder (18), cavity bottom is empty, partition wall (2) bottom extends in air inlet (1), junction at air inlet (1) with cavity, the quantity air door corresponding with number of cavities (39) is installed.

2. cavity-separating aerosol collection device according to claim 1, is characterized in that, each cavity bottom is provided with independently dirt-collecting bucket (4).

3. cavity-separating aerosol collection device according to claim 1, is characterized in that, the long axis direction of people's platform (9) on the 3rd, and it is the hyperbaric chamber (13) of 4 times of number of cavities that quantity is installed.