CN103480222B - Combined type electric oil-mist removing system of waste gas of printing, dyeing and finishing machine and filtering method - Google Patents
Combined type electric oil-mist removing system of waste gas of printing, dyeing and finishing machine and filtering method Download PDFInfo
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- CN103480222B CN103480222B CN201310382560.3A CN201310382560A CN103480222B CN 103480222 B CN103480222 B CN 103480222B CN 201310382560 A CN201310382560 A CN 201310382560A CN 103480222 B CN103480222 B CN 103480222B
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- 239000002912 waste gas Substances 0.000 title claims abstract description 83
- 238000004043 dyeing Methods 0.000 title claims abstract description 54
- 238000007639 printing Methods 0.000 title claims abstract description 43
- 239000003595 mist Substances 0.000 title claims abstract description 34
- 238000001914 filtration Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000000428 dust Substances 0.000 claims abstract description 38
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000003546 flue gas Substances 0.000 claims abstract description 18
- 239000002245 particle Substances 0.000 claims abstract description 15
- 230000000694 effects Effects 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 claims description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 239000004519 grease Substances 0.000 claims description 18
- 230000005684 electric field Effects 0.000 claims description 13
- 238000009413 insulation Methods 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000002826 coolant Substances 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000010865 sewage Substances 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000011324 bead Substances 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- 238000004826 seaming Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 206010059013 Nocturnal emission Diseases 0.000 claims description 2
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- 229940079593 drug Drugs 0.000 claims description 2
- 239000000835 fiber Substances 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 2
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- 239000007787 solid Substances 0.000 description 5
- 239000004753 textile Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 150000002632 lipids Chemical class 0.000 description 3
- 150000002894 organic compounds Chemical class 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
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- 241000258957 Asteroidea Species 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 208000028571 Occupational disease Diseases 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
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- 238000007664 blowing Methods 0.000 description 1
- 239000002415 cerumenolytic agent Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
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- RSMUVYRMZCOLBH-UHFFFAOYSA-N metsulfuron methyl Chemical compound COC(=O)C1=CC=CC=C1S(=O)(=O)NC(=O)NC1=NC(C)=NC(OC)=N1 RSMUVYRMZCOLBH-UHFFFAOYSA-N 0.000 description 1
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- 229910001220 stainless steel Inorganic materials 0.000 description 1
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- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention relates to a combined type electric oil-mist removing system of waste gas of a printing, dyeing and shaping machine and a filtering method. The combined type electric oil-mist removing system is characterized by comprising filter-screen type waste-gas coarse filters, a fin-tube type heat exchanger and an electric oil-mist remover, wherein the filtering-screen type waste-gas coarse filters are communicated with the waste gas in sequence; the fin-tube type heat exchanger is connected with the filtering-screen type waste-gas coarse filters; and the electric oil-mist remover is connected with the fin-tube type heat exchanger through an air inlet tube. The combined type electric oil-mist removing system has the advantages that due to adoption of the combined electric oil-mist removing system, not only big plant fiber dust in flue gas can be effectively removed, but also secondary fine dust particles and greasy liquid droplets which can not be collected by the conventional electric dust remover can be removed, no reentrainment is caused, the dust and oil removing rate is high, the maintenance amount is less, the suitability for centralized treatment of the waste gas of a plurality of finishing machines is realized, the cost is reasonable, the energy-saving and consumption-reducing effects are achieved, centralized management and control are convenient and the service life is long.
Description
Technical field
The invention belongs to electric cleaner technical field, especially relate to a kind of printing and dyeing reshaper waste gas combined electrical oil mist removing system and filter method.
Background technology
Dyeing textile is after weaving and dyeing, and product quality is not good, for improving the outward appearance of product, surface characteristic and dyeing quality, needs to add multiple textile auxiliary and solvents such as comprising silicone oil, wax and organic solvent aborning.Textile spin make and dye in produce internal stress, easily occur distortion and fold, therefore must carry out dyeing and finishing thermal finalization to it after dyeing, the dyeing and finishing method extensively adopted now is blowing hot-air mode drying and shaping.The organic compounds such as a large amount of organic moisture, grease class, wax class and solvent based that the textile because dye and after rinsing carries, so produce volatilization phenomenon after being heated during high-temperature heat treatment in forming machine, together discharge with waste hot gas, be formed as the flue gas ins and outs of type machine.
The bake out temperature of printing and dyeing reshaper is generally: 120 DEG C ~ 210 DEG C, outlet temperature is generally within the scope of 100 ~ 190 DEG C.Chemical fibre kind fabric dries general temperature: about ~ 200 DEG C, and cotton fabric is dried general temperature and is: about ~ 130 DEG C.The speed of service of fabric in forming machine is generally: 30 ~ 60m/min.Separate unit forming machine combustion gas amount is about: 50 ~ 210m
3/ min.
When printing and dyeing, the waste gas of reshaper enters air, temperature is down to below dew point, water vapour condensation wherein becomes white water vapour, organic compound is condensed into the toughness particle be made up of a large amount of nominal particle size because of cooling, make flue gas be light blue smog, and with unpleasant irritating smell.In flue gas together with the solid particle such as volatile organic steam and toughness oil mist particles and fabric fibre and dust, form the major pollutants of gas, liquid, solid three kinds of states of the peculiar flue gas of forming machine.The compounding substances of gas-liquid-solid three-state pollutant is contained in printing and dyeing reshaper waste gas, have the complicated components such as temperature is high, high humidity, oil-containing lipid, wax class, auxiliary agent class, fabric fibre and organic compound, feature that particle diameter is little, its harm is very serious especially.
Particulate pollutant in printing and dyeing reshaper waste gas, because particle diameter is minimum, can exist with aerocolloidal form after being discharged into air, even if mass concentration is very low, also can reduce the light transmittance of flue gas, therefore adopt in line mode not realize qualified discharge.Because of the organic steam in tenter frame exhaust and mist of oil flue gas, be the important sources of material and the PM2.5 damaged the ozone layer in air, the source of its contaminated air and destruction ball ecological environment.
The lipid phase of printing and dyeing reshaper waste gas mostly is organic matter, there is certain volatility, therefore unpleasant irritating stink can just be produced, this type organic is very easily absorbed by human lung, in the fat entering human body and nervous centralis, and cause the various diseases of human body, especially the benzene type organic in flue gas, aldehydes, ester class, ethers etc., it is the main cause that the dyeing area of concentration occupational disease incidence of disease is high, so be very necessary when administering the pressure of forming machine waste gas in the area that dyeing is concentrated, necessary especially.
The major parameter of printing and dyeing reshaper waste gas is: flue gas is moisture: 8 ~ 12%, oil smoke concentration: 100 ~ 150mg/Nm
3, fabric fibre and dust concentration: 120 ~ 180mg/Nm
3, the discharge capacity of flue gas: 50 ~ 210 m
3/ min.Printing and dyeing reshaper toxic emission governing problem gets the brush-off for many years always, up to the present China should not formulate its clear and definite discharge standard, and the dyeing and finishing setter Special electric oil demister of metallurgical Trade Co., Ltd. of Anshan beacon metallurgical engineering Co., Ltd and port, starfish Tianjin joint invention is set up for China's current dyeing and finishing industry toxic emission problem exactly.Its function is separated from gas the various organic oil lipid mist in printing and dyeing reshaper waste gas and fabric fibre and a small amount of granule dust, removes the pungent smell of waste gas simultaneously.Conventional electric cleaner, generally comprises anode system, cathod system, anode rocking arm hammer rapping apparatus, negative electrode rocking arm rapping apparatus, ash bucket.When flue gas enters in electric cleaner, can be charged by the granule dust in flue gas, charged dust, by under the effect of electric field force, makes electronegative adsorbing powder dust on anode system, makes the adsorbing powder dust of positively charged on cathod system.When dust runs up to certain thickness, by cathode and anode rocking arm hammer rapping apparatus, respectively to cathode and anode System Implementation vibration dust-cleaning, make that there is certain thickness dust, fall in the ash bucket below electric cleaner in the double action of deadweight and vibration, thus reach the object of dust in separating flue.But, this electric cleaner is for high specific resistance, the dust separation effect that viscosity that is ultra-fine, light specific gravity is large is poor, easily there is the problems such as inverse corona, corona wire are loose, depend merely on rapping apparatus ash-removal effect undesirable, easily produce back corona phenomenon, cause secondary dust, efficiency of dust collection is lower, cannot reach discharge standard requirement.
Summary of the invention
The object of this invention is to provide a kind of printing and dyeing reshaper waste gas combined electrical oil mist removing system and filter method, the mist of oil of submicron order particle diameters a large amount of in dyeing and finishing industry waste gas, fabric fibre and dust, proportion is extremely light, viscosity greatly, not easily charged, be difficult to be separated from gas, easily produce and catch fire or explode and have the waste gas medium of unpleasant sharp aroma to carry out environmental protection treatment, and oil removing, taste removal are effective, cost is low, long service life.
the object of the invention is to be realized by following technical proposals:
Printing and dyeing reshaper waste gas combined electrical oil mist removing system of the present invention, it is characterized in that comprising the filter net type waste gas coarse filter that is connected with waste gas successively, filter net type waste gas coarse filter connecting fin Flat-tube type heat-exchanger therewith, by air inlet pipe therewith fin-tube heat exchanger connect electric oil demister;
Described filter net type waste gas coarse filter comprises filter housings, access door, be arranged on the screen pack in filter housings, filter chute group is provided with at described filter housings inner bottom part, described screen pack rolls with filter chute group and is connected, and is provided with filter stopper slot at described filter housings inner top;
Described fin-tube heat exchanger comprises gas tank, be arranged on one group in the gas tank helical fin formula heat-exchange tube group with roller, be arranged on the cooling medium that gas tank is connected with the helical fin formula heat-exchange tube group with roller to go out to manage and cooling medium enters to manage, top in described gas tank is provided with heat-exchange tube class upper limit position baffle plate, bottom in gas tank is provided with deep bead, bottom in described gas tank is provided with heat-exchange tube group guide rail, to roll with heat-exchange tube group guide rail with the helical fin formula heat-exchange tube group of roller and be connected, sidepiece directive wheel is provided with on the top of the helical fin formula heat-exchange tube group with roller, described directive wheel rolls with upper limit baffle plate and is connected,
Described electric oil demister comprises cylindrical shell, be arranged on pure qi (oxygen) discharge closure and the blower fan chimney on cylindrical shell top, be arranged on bottom oil-collecting cone bucket and the sewage draining exit of cylindrical shell bottom, corona discharge electrode top locating rack and oil-collecting tube bank top locating rack is provided with at described cylindrical shell internal upper part, in cylindrical shell, bottom is provided with corona discharge electrode bottom locating rack and oil-collecting tube bank bottom locating rack, be fixed on one group of oil-collecting tube bank between oil-collecting tube bank top locating rack and oil-collecting tube bank bottom locating rack, the top of described oil-collecting tube bank is provided with and hangs outer, it hangs outer and is articulated on the locating rack of oil-collecting tube bank top, and it is fixing to adopt airtight and watertight padding to seal, high voltage source and high-tension electricity interface is provided with in the outside of cylindrical shell, the sidepiece of cylindrical shell is connected with air inlet pipe,
The upper end of cathode line mounts mutually with the cathode line suspension hook be arranged on described corona discharge electrode top locating rack, the lower end of cathode line is connected with the stretching counterweight of the cathode line of bottom by the cathode line spacing ring be arranged on described corona discharge electrode bottom locating rack, and described cathode line is electrically connected with high-tension electricity interface;
Be provided with top auxiliary electrode choke device at the middle part of described pure qi (oxygen) discharge closure, outside cylindrical shell, be provided with insulation protection device.
Insulation protection device of the present invention establishes four in cylindrical shell outer upper; bottom establishes two; and described insulation protection device comprises two the insulating protection casees be arranged on outside cylindrical shell; be arranged on the insulating supporting seat in insulating protection case; through the built-in beam that cylindrical shell two ends are fixedly connected with insulating supporting seat; be provided with insulating supporting dirt proof sleeve at the two ends of the inwall built-in beam of housing, described built-in beam is fixedly connected with corona discharge electrode bottom locating rack with corona discharge electrode top locating rack respectively by connecting rod.
Described oil-collecting tube bank bottom locating rack is the oil-collecting tube bank bottom locating rack having inverted draft distribution hole, and described oil-collecting tube bank adopts oil-collecting tube bank position-limited rack to restrain bottom locating rack with oil-collecting through inverted draft distribution hole and is fixedly connected with.
The gap that described inverted draft distribution hole and oil-collecting are restrained is 10 ㎜-35 ㎜.
Described oil-collecting tube bank is spiral gathering oil pipe bundle, and spiral gathering oil pipe bundle is seaming connection.
Described top auxiliary electrode choke device is by framework, and the angle steel shape electrode be arranged on framework formed.
The described screen pack with roller is double medium filtration web plate.
A filter method for printing and dyeing reshaper waste gas combined electrical oil mist removing system, is characterized in that the filter method adopting coarse filtration, lower the temperature filtration and mist of oil fine filtering three ranks,
1) coarse filtration described in:
After printing and dyeing reshaper waste gas is filtered by the screen pack that the exhaust gas entrance of filter net type waste gas coarse filter enters filter net type waste gas coarse filter, diameter is greater than big dust particle in the printing and dyeing reshaper waste gas of 1 μm and amount of grease will stick on screen pack;
2) cooling described in is filtered:
The waste gas that diameter after coarse filtration is less than the printing and dyeing reshaper of 1 μm enters the fin-tube heat exchanger be connected with filter net type waste gas coarse filter by the mesh in sieve plate, after the filtration of the cooling circulating water of fin-tube heat exchanger, flue gas is made to be down to 45 DEG C ~ 55 DEG C from 100 DEG C ~ 120 DEG C
3) the mist of oil fine filtering described in:
After vaporous water in the following waste gas of dew-point temperature and grease are condensed into drop, enter electric oil demister by air inlet pipe and carry out final gas, liquid, solid separating treatment,
When entering electric oil demister lower than the printing and dyeing reshaper waste gas below dew-point temperature, printing and dyeing reshaper waste gas is first after air flow method is carried out in oil-collecting tube bank, again through inverted draft distribution hole that oil-collecting tube bank bottom locating rack has, enter in each oil-collecting tube bank uniformly, vaporous water in waste gas below dew point and grease are condensed into drop and micro-ultrafine dust and enter electric field under the effect of high voltage electric field power, adsorbed oil-collecting and restrain the outer surface of inner surface and cathode line respectively after charged, and grease drop and micro-ultrafine dust companion's moisture film (condensed water) flow in the oil-collecting cone bucket bottom electric oil demister, discharge through sewage draining exit, purified gas is again after the purification of top auxiliary electrode choke device last all wind, air is entered by blower fan chimney.
Advantage of the present invention:
Owing to present invention employs combinations thereof formula electricity oil mist removing system, not only effectively can remove large string dust in flue gas, also secondary micro-dust particles and grease drop that conventional electric cleaner cannot trap can be removed, the moisture film of the outer surface of its oil-collecting tube bank inner surface and cathode line is formed, be by the air-water heat exchanger of logical recirculated water by flue gas cool-down to the following self-assembling formation of dew point, atomized water spray is carried out or the formation moisture film that adds water without the need to additionally consuming a large amount of water, and without reentrainment of dust, dedusting oil rate is high, maintenance is few, be suitable for multiple stage forming machine waste gas to focus on, cost is reasonable, energy-saving and cost-reducing, be convenient to centralized management, long service life.
accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention.
Fig. 2 is the A-A sectional view of Fig. 1 of the present invention.
Fig. 3 is the structural representation of filter net type waste gas coarse filter of the present invention.
Fig. 4 is fin-tube heat exchanger structural representation of the present invention.
Fig. 5 is upper and lower part of the present invention cathode line syndeton schematic diagram.
Fig. 6 is the enlarged drawing of IV of Fig. 1 in the present invention.
Fig. 7 is the enlarged drawing of II of Fig. 1 in the present invention.
Fig. 8 is the enlarged drawing of III of Fig. 1 of the present invention.
Fig. 9 is the B-B sectional view of Fig. 8 of the present invention.
Figure 10 is the schematic diagram of spiral gathering oil pipe bundle of the present invention.
Figure 11 is the A-A cut-away view of Figure 10.
Figure 12 is the enlarged drawing of I of Fig. 1 of the present invention.
detailed description of the invention:
The specific embodiment of the present invention is further illustrated below in conjunction with accompanying drawing.
As shown in figures 1 to 6, printing and dyeing reshaper waste gas combined electrical oil mist removing system of the present invention and filter method, it is characterized in that comprising the filter net type waste gas coarse filter 1 that is connected with waste gas successively, filter net type waste gas coarse filter 1 connecting fin Flat-tube type heat-exchanger 2 therewith, by air inlet pipe 3 therewith fin-tube heat exchanger 2 connect electric oil demister
Described filter net type waste gas coarse filter 1 comprises filter housings 1-1, access door, be arranged on the screen pack 1-3 in filter housings 1-1, filter chute group 1-4 is provided with at described filter housings 1-1 inner bottom part, described screen pack 1-3 rolls with filter chute group 1-4 and is connected, screen pack stopper slot 1-2 is provided with at described filter housings 1-1 inner top, first order coarse filtration A district is formed to printing and dyeing reshaper waste gas, after filtering, diameter is greater than big dust particle in the printing and dyeing reshaper waste gas of 1 μm and amount of grease will stick on screen pack 1-3, be connected because screen pack 1-3 of the present invention rolls with filter chute group 1-4, big dust particle and amount of grease and from gas, be separated to screen pack appearance and inside, when screen pack 1-3 sticking dust and grease, can pull it after cleaning up and reusing.
Described screen pack 1-3 can be designed to individual layer by the present invention as required, also can be designed to bilayer.
As shown in Figure 4, fin-tube heat exchanger 2 of the present invention comprises gas tank 2-1, be arranged on one group in the gas tank 2-1 helical fin formula heat-exchange tube group 2-3 with roller 2-5, be arranged on cooling medium that on gas tank, 2-1 is connected with the helical fin formula heat-exchange tube group 2-3 with roller 2-5 to go out to manage and cooling medium enters to manage, top in described gas tank 2-1 is provided with heat-exchange tube class upper limit position baffle plate 2-2, bottom in gas tank 2-1 is provided with deep bead 2-4, bottom in described gas tank 2-1 is provided with heat-exchange tube group guide rail 2-6, to roll with heat-exchange tube group guide rail 2-6 with the helical fin formula heat-exchange tube group 2-3 of roller 2-5 and be connected, directive wheel 2-7 is provided with on the top of the helical fin formula heat-exchange tube group 2-3 with roller 2-5, described directive wheel 2-7 rolls with upper limit baffle plate 2-2 and is connected, fin-tube heat exchanger 2 of the present invention forms second level cooling and filters B district, the printing and dyeing reshaper waste gas that diameter after coarse filtration is less than 1 μm enters the fin-tube heat exchanger 2 be connected with filter net type waste gas coarse filter 1 by the mesh on the screen pack 1-3 in first order coarse filtration A district, after the filtration of the cooling circulating water of fin-tube heat exchanger 2, flue gas is made to be down to 45 DEG C ~ 55 DEG C from 100 DEG C ~ 120 DEG C, because helical fin formula heat-exchange tube group 2-3 is also washable structure, can periodic cleaning, also reusable.
As Fig. 1, Fig. 2, shown in Fig. 7, electric oil demister of the present invention comprises cylindrical shell 9, be arranged on pure qi (oxygen) discharge closure 5 and the blower fan chimney 4 on cylindrical shell 9 top, be arranged on bottom oil-collecting cone bucket 14 and the sewage draining exit 15 of cylindrical shell 9 bottom, corona discharge electrode top locating rack 7 and oil-collecting tube bank top locating rack 8 is provided with at described cylindrical shell 9 internal upper part, in cylindrical shell, bottom is provided with corona discharge electrode bottom locating rack 12 and oil-collecting tube bank bottom locating rack 11, be fixed on one group of oil-collecting tube bank 10 between oil-collecting tube bank top locating rack 8 and oil-collecting tube bank bottom locating rack 11, the top of described oil-collecting tube bank 10 is provided with and hangs outer, it hangs outer and is articulated on oil-collecting tube bank top locating rack 8, and it is fixing to adopt airtight and watertight padding 23 to seal, high voltage source 17 and high-tension electricity interface 16 is provided with in the outside of cylindrical shell 9, the sidepiece of cylindrical shell 9 is connected with air inlet pipe 3, the waste gas being cooled to below dew-point temperature through fin-tube heat exchanger 2 enters electric oil demister to carry out third level essence and filters C district, carries out final gas, liquid, solid separating treatment.As shown in Figure 5, Figure 6, the upper end of cathode line 21 of the present invention mounts with cathode line suspension hook 18 phase be arranged on described corona discharge electrode top locating rack 7, the lower end of cathode line 21 is connected with the stretching counterweight 20 of the cathode line of bottom by the cathode line spacing hole 19 be arranged on described corona discharge electrode bottom locating rack 12, described cathode line 21 is electrically connected with high-tension electricity interface 16
The present invention is provided with top auxiliary electrode choke device 6 at the middle part of described pure qi (oxygen) discharge closure 5, is provided with insulation protection device 13 outside cylindrical shell 9.
As Fig. 5, shown in Fig. 6, insulation protection device 13 of the present invention establishes four in cylindrical shell outer upper, bottom establishes two, and described insulation protection device 13 comprises two the insulating protection case 13-1 be arranged on outside cylindrical shell 9, be arranged on the insulating supporting seat 13-2 in insulating protection case 13-1, through the built-in beam 13-3 that cylindrical shell two ends are fixedly connected with insulating supporting seat 13-2, insulating supporting dirt proof sleeve 13-4 is provided with at the two ends of the built-in beam 13-3 of inner walls, its insulating supporting dirt proof sleeve 13-4 can be lengthened insulative and supports dirt proof sleeve, described built-in beam 13-3 is fixedly connected with corona discharge electrode top locating rack 7 or corona discharge electrode bottom locating rack 12 respectively by connecting rod 22, its insulation protection device 13 is with on corona discharge electrode, bottom locating rack electrode constitutes Double-layer hanging.
Owing to adopting Double-layer hanging structure, cathode line suspension hook can be positioned on corona discharge electrode top locating rack 7, or on the corona discharge electrode bottom locating rack 12 on built-in beam top, and directly do not hang on built-in beam 13-3, fundamentally ensure that the insulation distance between the end of insulating supporting dirt proof sleeve and cathode line, guarantee electric field stable operation.
Insulation protection device 13: one of the present invention is the pollution level that significantly can reduce insulating supporting seating face, thus can safeguard cumulative time and workload by power generating ratio, makes the long-term Effec-tive Function of electric oil demister energy.
Two be can realize built-in beam bottom oil-collecting tube bank top locating rack 8 whole area on fully arrange oil-collecting tube bank 10, thus significantly can improve oil-collecting tube bank top locating rack 8 usable floor area about 20%, make the structure of enclosure interior more rationally reduce equipment total amount about 15% with compact.
As shown in Figure 8, Figure 9, oil-collecting tube bank bottom of the present invention locating rack 11 is for having the oil-collecting tube bank bottom locating rack 11 of inverted draft distribution hole 11-1, and described oil-collecting tube bank 10 adopts oil-collecting tube bank position-limited rack 11-2 to restrain bottom locating rack 11 with oil-collecting through inverted draft distribution hole 11-1 and is fixedly connected with.
The gap that described inverted draft distribution hole 11-1 and oil-collecting are restrained is 10 ㎜-35 ㎜.Its oil-collecting tube bank position-limited rack 11-2 avoids oil-collecting tube bank bottom, bottom locating rack 11 rocking because of air-flow shake generation, improves the operation pole span precision of electric field.
As shown in Figure 10, Figure 11, described oil-collecting tube bank 10 of the present invention is the oil-collecting tube bank 10 with flight 10-1, and the flight 10-1 of spiral gathering oil pipe bundle is seaming connection.Because the thickness of its flight of the present invention 10-1 is only 0.5 ㎜, can load be reduced than employing common stainless steel welded tube, weight of equipment about 30% can be lowered.
As shown in figure 12, top of the present invention auxiliary electrode choke device is by framework 6-1, and the angle steel shape electrode 6-2 be arranged on framework 6-1 formed.Top auxiliary electrode choke device can improve oil removal efficiency 5% ~ 8%.
The filter method of a kind of printing and dyeing reshaper exhaust-gas efficient combined electrical oil mist removing system of the present invention, is characterized in that the filter method adopting coarse filtration, lower the temperature filtration and mist of oil fine filtering three ranks,
1) coarse filtration described in:
After printing and dyeing reshaper waste gas is filtered by the screen pack 1-3 that the exhaust gas entrance of filter net type waste gas coarse filter 1 enters filter net type waste gas coarse filter 1, diameter is greater than big dust particle in the printing and dyeing reshaper waste gas of 1 μm and amount of grease will stick on screen pack 1-3;
2) cooling described in is filtered:
The waste gas that diameter after coarse filtration is less than the printing and dyeing reshaper of 1 μm enters the fin-tube heat exchanger 2 be connected with filter net type waste gas coarse filter 1 by the mesh on sieve plate 1-3, after the filtration of the cooling circulating water of fin-tube heat exchanger 2, flue gas is made to be down to 45 DEG C ~ 55 DEG C from 100 DEG C ~ 120 DEG C
3) the mist of oil fine filtering described in:
After vaporous water in the following waste gas of dew-point temperature and grease are condensed into drop, enter electric oil demister by air inlet pipe 3 and carry out the thin isolated by filtration process of gas, liquid and controlling nocturnal emission with astringent drugs,
When entering electric oil demister lower than the printing and dyeing reshaper waste gas below dew-point temperature, the waste gas of printing and dyeing reshaper is first after air flow method is carried out in oil-collecting tube bank 10, again through inverted draft distribution hole 11-1 that oil-collecting tube bank bottom locating rack 11 has, enter in each oil-collecting tube bank 10 uniformly, vaporous water in waste gas below dew point and grease are condensed into drop and micro-ultrafine dust enters electric field, under the effect of high voltage electric field power, restrained the outer surface of 10 inner surfaces and cathode line 21 respectively by absorption oil-collecting after charged, and grease drop and micro-ultrafine dust companion water flow in the oil-collecting cone bucket 14 bottom electric oil demister, discharge through sewage draining exit 15, purified gas is again after the purification of top auxiliary electrode choke device 6 last all wind, air is entered by blower fan chimney 4.
Haircut indication in figure of the present invention is airflow direction.
Owing to present invention employs three grades of combination dedustings, the fine filtering of especially electric oil demister, when cathode line 21 and high-tension electricity interface 16, namely between two poles, form electric field.Along with voltage raises, electric-field intensity increases, and starts ionization by the gas of electric field, and form corona near high-pressure stage, produce a large amount of charged ion, micro-ultrafine dust, mist of oil etc. in waste gas are charged by ion, namely charged.Charged particle to dust collector pole motion, is adsorbed on dust collector pole in the electric field, and reach and remove micro-ultrafine dust and grease in waste gas, the object of purifying exhaust gas, improves efficiency of dust collection effectively.The present invention is also applicable to vapour, the liquid, admittedly separation of other chemical industry waste gas.
Claims (8)
1. a printing and dyeing reshaper waste gas combined electrical oil mist removing system, it is characterized in that comprising the filter net type waste gas coarse filter that is connected with waste gas successively, filter net type waste gas coarse filter connecting fin Flat-tube type heat-exchanger therewith, by air inlet pipe therewith fin-tube heat exchanger connect electric oil demister
Described filter net type waste gas coarse filter comprises filter housings, access door, be arranged on the screen pack in filter housings, filter chute group is provided with at described filter housings inner bottom part, described screen pack rolls with filter chute group and is connected, screen pack stopper slot is provided with at described filter housings inner top
Described fin-tube heat exchanger comprises gas tank, be arranged on one group in the gas tank helical fin formula heat-exchange tube group with roller, be arranged on the cooling medium that gas tank is connected with the helical fin formula heat-exchange tube group with roller to go out to manage and cooling medium enters to manage, top in described gas tank is provided with heat-exchange tube class upper limit position baffle plate, bottom in gas tank is provided with deep bead, bottom in described gas tank is provided with heat-exchange tube group guide rail, to roll with heat-exchange tube group guide rail with the helical fin formula heat-exchange tube group of roller and be connected, sidepiece directive wheel is provided with on the top of the helical fin formula heat-exchange tube group with roller, described directive wheel rolls with upper limit baffle plate and is connected,
Described electric oil demister comprises cylindrical shell, be arranged on pure qi (oxygen) discharge closure and the blower fan chimney on cylindrical shell top, be arranged on bottom oil-collecting cone bucket and the sewage draining exit of cylindrical shell bottom, corona discharge electrode top locating rack and oil-collecting tube bank top locating rack is provided with at described cylindrical shell internal upper part, in cylindrical shell, bottom is provided with corona discharge electrode bottom locating rack and oil-collecting tube bank bottom locating rack, be fixed on one group of oil-collecting tube bank between oil-collecting tube bank top locating rack and oil-collecting tube bank bottom locating rack, the top of described oil-collecting tube bank is provided with and hangs outer, it hangs outer and is articulated on the locating rack of oil-collecting tube bank top, and it is fixing to adopt airtight and watertight padding to seal, high voltage source and high-tension electricity interface is provided with in the outside of cylindrical shell, the sidepiece of cylindrical shell is connected with air inlet pipe,
The upper end of cathode line mounts mutually with the cathode line suspension hook be arranged on described corona discharge electrode top locating rack, the lower end of cathode line is connected with the stretching counterweight of the cathode line of bottom by the cathode line spacing ring be arranged on described corona discharge electrode bottom locating rack, described cathode line is electrically connected with high-tension electricity interface
Be provided with top auxiliary electrode choke device at the middle part of described pure qi (oxygen) discharge closure, outside cylindrical shell, be provided with insulation protection device.
2. printing and dyeing reshaper waste gas combined electrical oil mist removing system according to claim 1, it is characterized in that described insulation protection device establishes four in cylindrical shell outer upper, bottom establishes two, and described insulation protection device comprises two the insulating protection casees be arranged on outside cylindrical shell, be arranged on the insulating supporting seat in insulating protection case, through the built-in beam that cylindrical shell two ends are fixedly connected with insulating supporting seat, insulating supporting dirt proof sleeve is provided with at the two ends of the inwall built-in beam of housing, described built-in beam is fixedly connected with corona discharge electrode bottom locating rack with corona discharge electrode top locating rack respectively by connecting rod.
3. printing and dyeing reshaper waste gas combined electrical oil mist removing system according to claim 1, it is characterized in that described oil-collecting tube bank bottom locating rack is the oil-collecting tube bank bottom locating rack having inverted draft distribution hole, described oil-collecting tube bank adopts oil-collecting tube bank position-limited rack to restrain bottom locating rack with oil-collecting through inverted draft distribution hole and is fixedly connected with.
4. printing and dyeing reshaper waste gas combined electrical oil mist removing system according to claim 3, is characterized in that the gap that described inverted draft distribution hole and oil-collecting are restrained is 10 ㎜-35 ㎜.
5. printing and dyeing reshaper waste gas combined electrical oil mist removing system according to claim 1, it is characterized in that described oil-collecting tube bank is spiral gathering oil pipe bundle, and spiral gathering oil pipe bundle is seaming connection.
6. printing and dyeing reshaper waste gas combined electrical oil mist removing system according to claim 1, it is characterized in that described top auxiliary electrode choke device is by framework, the angle steel shape electrode be arranged on framework formed.
7. printing and dyeing reshaper waste gas combined electrical oil mist removing system according to claim 1, is characterized in that described screen pack is double medium filtration web plate.
8., with a filter method for printing and dyeing reshaper waste gas combined electrical oil mist removing system, it is characterized in that the filter method adopting coarse filtration, lower the temperature filtration and mist of oil fine filtering three ranks,
1) coarse filtration described in:
After printing and dyeing reshaper waste gas is filtered by the screen pack that the exhaust gas entrance of filter net type waste gas coarse filter enters filter net type waste gas coarse filter, diameter is greater than big dust particle in the printing and dyeing reshaper waste gas of 1 μm and amount of grease will stick on screen pack;
2) cooling described in is filtered:
The waste gas that diameter after coarse filtration is less than the printing and dyeing reshaper of 1 μm enters the fin-tube heat exchanger be connected with filter net type waste gas coarse filter by the mesh in sieve plate, after the filtration of the cooling circulating water of fin-tube heat exchanger, flue gas is made to be down to 45 DEG C ~ 55 DEG C from 100 DEG C ~ 120 DEG C
3) the mist of oil fine filtering described in:
After vaporous water in the following waste gas of dew-point temperature and grease are condensed into drop, enter electric oil demister by air inlet pipe and carry out the thin isolated by filtration process of gas, liquid and controlling nocturnal emission with astringent drugs,
When entering electric oil demister lower than the printing and dyeing reshaper waste gas below dew-point temperature, printing and dyeing reshaper waste gas is first after air flow method is carried out in oil-collecting tube bank, again through inverted draft distribution hole that oil-collecting tube bank bottom locating rack has, enter in each oil-collecting tube bank uniformly, vaporous water in waste gas below dew point and grease are condensed into drop and micro-ultrafine dust and enter electric field under the effect of high voltage electric field power, adsorbed oil-collecting and restrain the outer surface of inner surface and cathode line respectively after charged, and grease drop and micro-ultrafine dust companion water flow in the oil-collecting cone bucket bottom electric oil demister, discharge through sewage draining exit, purified gas is again after the purification of top auxiliary electrode choke device last all wind, air is entered by blower fan chimney.
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| CN201310382560.3A CN103480222B (en) | 2013-08-29 | 2013-08-29 | Combined type electric oil-mist removing system of waste gas of printing, dyeing and finishing machine and filtering method |
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| CN201310382560.3A CN103480222B (en) | 2013-08-29 | 2013-08-29 | Combined type electric oil-mist removing system of waste gas of printing, dyeing and finishing machine and filtering method |
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| CN105688574A (en) * | 2016-03-21 | 2016-06-22 | 安徽未名生物环保有限公司 | Treatment device for tail gas |
| CN105771517A (en) * | 2016-04-29 | 2016-07-20 | 石河子市天成油脂有限公司 | Gaseous grease solvent filter |
| CN107715606A (en) * | 2016-08-13 | 2018-02-23 | 安徽恒创竹木科技有限公司 | A kind of waste gas purification apparatus |
| CN113230808B (en) * | 2021-06-03 | 2022-02-01 | 濮阳职业技术学院 | Road dust absorbing device for civil engineering |
| CN119819060A (en) * | 2025-01-21 | 2025-04-15 | 江苏联亚纺织科技有限公司 | Dust collector is used in chemical fiber weaving |
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