CN104906933A - Smoke gas washing, purifying and treating device - Google Patents
Smoke gas washing, purifying and treating device Download PDFInfo
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- CN104906933A CN104906933A CN201510262235.2A CN201510262235A CN104906933A CN 104906933 A CN104906933 A CN 104906933A CN 201510262235 A CN201510262235 A CN 201510262235A CN 104906933 A CN104906933 A CN 104906933A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention discloses a smoke gas washing, purifying and treating device and a washing and purifying device, with the smoke gas washing, purifying and treating device, for exhausted smoke gas of a coal-fired boiler, an oil-fired boiler and a gas-fired boiler. The smoke gas washing, purifying and treating device comprises smoke gas washing, purifying and treating units, wherein each smoke gas washing, purifying and treating unit is jointly formed by two liquid seal type gas compressors with bell-shaped pistons, a traction machine and two liquid seal type gas exhausting boxes, and the traction machine is used for dragging the bell-shaped pistons of the two compressors. When the exhausted amount of the smoke gas is large, the smoke gas washing, purifying and treating units in parallel connection can be adopted to wash and purify the smoke gas; when the cleanliness of the treated smoke gas needs to be is high, the smoke gas washing, purifying and treating units in multistage series connection can be adopted to wash and purify the smoke gas, and gas exhausting pipes at the tail ends of the liquid seal type gas exhausting boxes are heightened to replace a chimney; when a gas inlet pipe of the treating units is connected with air, the device becomes an air compressor; when the treating units are connected with a gas exhausting pipe of a vacuum smelting furnace, the device becomes a vacuum pump; if sealing liquid of the treating units is changed into concentrated sulfuric acid, chlorine gas exhausted by a magnesium chloride electrolysis furnace can be washed and purified, so that the device becomes a chlorine gas compressor.
Description
Technical field
Relate to chimney Air Pollutant Emission field and the machine-building of various boiler chimney and the dry various object of burning, especially relate to the device that Air Pollutant Emission is administered.
Background technology
China is the country that coal resources reserves enrich very much, and coal is the main energy, is widely used in the industrial production such as metal smelt, coal-burning boiler generating.
Present air Contaminations of Coal Burning Boilers is one of main arch-criminal causing haze weather.The method that improvement air Contaminations of Coal Burning Boilers mainly adopts is based on cyclone dust removal, bag-type dust and electromagnetism dedusting, this type of dedusting is all adopt dry dust removal to move method, reduces Emission Concentration of Boiller Dust, SO2, NO2, CO2 gas discharging concentration and flue gas blackness.Data according to interrelated data show: burn one ton of coal, discharge the SO2 of 1.53kg; The NO2 of 3-9kg; The dust of CO and 9-11kg of about 2kg, the environmental protection equipment of burning one ton of coal will invest 156 yuan.2013, national coal consumption amount 3,600,000,000 tons, then needed the fund of input 5,616 hundred million yuan.A large amount of Environmental Inputs causes enterprise to be difficult to bear.Drop into not, regulation effect is not good, serious environment pollution, is one of main arch-criminal causing haze weather.Atmospheric environment is contaminated, and to the consequence of bringing on a disaster property of the mankind, the disease of respiratory system increases, and the incidence of disease of lung cancer significantly rises.Particle particularly in contaminated air is listed in one-level carcinogenic substance, and cancer has seized the life of countless people.
Summary of the invention
Cast off the method that traditional dry dust removal administers flue gas once and for all, adopt reverse thinking, with the discharge of wet scrubbing control atmosphere pollution thing.
In order to solve the problems of the technologies described above, the technical scheme that this device adopts is: research and develop bell gas piston compressor, the flue gas of the discharges such as process fire coal, fuel-oil or fuel-gas boiler, boiler exhaust gas passage or dedusting passage are connected with this compressor inlet, utilize water seal washing, purifying gas, the water seal washing, purifying gas again of recycling steam vent.Because the pressure of emission gases is lower, the housing of the compressor of this apparatus design can use non-pressure vessel, can design number rice diameter, the cylinder body of tens of meters of strokes and piston; When piston moves to upper and lower dead point, during piston all must soak in liquid; Piston rod adopts rigid rod and flexible link combination, and rigid rod carries out rectilinear motion, and flexible link carries out straight line and gyration; Secondly compressor must become even number to configure, and is used as power with the traction machine of vertical lift, is combined into a processing unit.Adopt rigid and flexible piston rod and traction machine to make actuator, the cylinder body of compressor and piston stroke can be made up to tens of rice.The piston of the compressor of paired configuration, a car being equivalent to elevator, another is equivalent to the counterweight of elevator, utilizes the operation principle of traction machine reciprocating rotation to move the piston of compressor, makes its relative energy-saving.Noise ratio piston compressor and the screw-compression of traction machine operation are confidential much smaller.Owing to adopting hydraulic seal, cylinder body and piston need not use piston ring and lubricating oil.For pollution sources capacity and the requirement of process gas sanitizes degree, processing unit can be utilized to carry out series and parallel connections process.The flue gas that process capacity is large, utilizes parallel units process; Process gas sanitizes degree requires higher gas, can adopt series unit process.
Because this device is up to tens of rice, have the function of pulling out cigarette, putting a chimney on the stove and make the fire draw that chimney possesses concurrently, the piston of adding in device moves back and forth in cylinder body, the gas pressure in the gas in piston and cylinder body and piston and water seal is caused alternately to increase and reduce, carry out emission gases, be discharged to again after the gas after compression is passed the water seal getting rid of flue gas in the air under nature.
The operation principle of bell gas piston compressor is: when the piston being equivalent to lift car moves upward in cylinder body, the closure of check ring of admission line, and in cylinder body, gas volume is more and more less, and gas pressure is increasing; Synchronous therewith, the volume of bell piston cavity is increasing, and increasing pressure is little, and the increasing gas of cylinder interior pressure just enters piston cavity through water seal.Bell piston and water seal form compressor again, and bell piston cavity becomes cylinder body, and water seal becomes piston, gas after compression, through venting check valve and pipeline, through exhaust sealing water tank, then enters chimney, be discharged in the air under natural environment, complete the process of washing, purifying.When the bell piston being meanwhile equivalent to Elevator weight sensor moves downward, the volume of bell piston cavity is more and more less, and the increasing pressure of intracavity gas is large, and gas will pass water seal, then enters chimney, is discharged in the air under natural environment; Gas volume between bell piston outer wall and cylinder body is then increasing, and gas pressure is more and more less, and breather check valve is opened, and gas enters cylinder body, completes the working cycles of air processing unit.Now, traction machine inhour rotates, and completes again next working cycles.Traction machine, under the control of travel switch, automatically completes forward and backward working cycles, accomplishes that flue gas continuous washing is discharged.
The pollutant project of emission standard of air pollutants for boilers is mainly: particle, oxysulfide, nitrogen oxide, oxycarbide, mercury and oxide thereof and flue gas blackness.The particle be blended in gas passes water seal, and after twice washing absorption moisture, its weight increases, and more easily sinks, is no longer discharged into air.After the particle be deposited in water solidifies after filtration, can recycle, prevent from causing secondary pollution.Oxysulfide is based on SO2 gas.Utilize the feature of the good water solubility of SO2, make its formation sulfurous acid soluble in water.Sulfurous acid is the main component of acid rain, will be partially soluble in SO2 in water and carry out collection process.Nitrogen oxide is NO2 mainly.NO2 is soluble in water and react with water and generate nitric acid.NO2 soluble in water is carried out collection process.CO2 is also soluble in water, reacts with water, generates H2CO3.Focus on acid solution, formation acid rain can be reduced.
The washing, purifying of flue gas completes in through the process having arranged water seal.For coal-burning boiler, the one ton of coal that burns will discharge the dust of 9-11kg, the NO2 of the SO2 of 1.53kg, 3-9kg, the CO of about 2kg.According to the water consumption of water seal and boiler fired coal consumption number determine that the water in water seal more renews water containing particle and acidity.Swap out the water available filter method eliminating particle thing come, then be cured process; In water alkali material after supernatant and after continue again to recycle, reduce the consumption of water.
Encounter when needing gas to be processed special, the compatibility of closed liquid can be used to determine hydraulic seal material according to this gas and institute.Such as, when needing the chlorine processing the generation of electrolytic chlorination magnesium, the concentrated sulfuric acid can be used as sealing fluid.
When encountering vacuum smelting furnace, stove inside exhaust pipe can be connected to the air inlet of compressor, make it use as vavuum pump.
Encounter need obtain compressed air time, the air inlet of compressor can be connected with air, just can obtain compressed air.
Compared with prior art, this device tool has the following advantages:
(1) this device uses field broad, both can washing, purifying flue gas and special gas, also can make air compressor and vavuum pump uses.
(2) the gas cleaning dust arrester as fire coal, fuel-oil or fuel-gas boiler and coal drying oven, ore deposit drying oven, slag drying oven uses, the characteristic that oxysulfide, nitrogen oxide and CO2 are soluble in water can be utilized, it is made fully to contact with water, soluble in water, react with water and generate the acidic aqueous solution such as sulfurous acid, nitric acid, carry out neutralisation treatment again, recycle; The particle be deposited in water can filter, and then be cured process, avoids secondary pollution, reduces the pressure of environmental protection.
(3) compared with traditional dust arrester, this device not only dedusting is clean, possesses the function of traditional dust arrester, but also when allowing flue gas pass water seal, use the characteristic that the material such as oxysulfide, nitrogen oxide is soluble in water, make it be partially soluble in water, then neutralisation treatment is carried out to water, recycle, its function is more much better than than traditional dust arrester.Pass through water seal flue gas of washing, purifying in water and enter chimney, be discharged into the air under nature.By the gas that water seal is washed, humidity is comparatively large, and seem environmental protection more.
(4) bell piston compressor is the core technology of this device.Owing to adopting the bell piston of hydraulic seal, the gap of cylinder body and piston is larger, cylinder body and piston all can roll with steel plate, compared with conventional piston compressor, the manufacturing cost of conventional piston compressor is larger, the cost of the bell piston compressor of hydraulic seal is lower, can greatly reduce making and installation cost.Adding this device is occur with processing unit, and is used as power with elevator traction machine, is combined into plant equipment, but also use rigid piston rod and flexible piston rod to combine, traction machine can be used to draw piston, and the piston stroke of this machine just can be allowed up to tens of rice, and the diameter of piston reaches several meters.Add bell piston weight substantially equal, traction machine is mobile two compressor pistons simultaneously, and the electrical power of consumption is less, reduction use cost that can be larger, reduce the Environmental Inputs of enterprise governance gaseous contamination.
(5) this device uses using processing unit as minimum plant equipment, can require parallel connection and the series connection use of carrying out processing unit according to environment for use.Use processing unit in parallel when exhaust gas volumn is larger; Series connection processing unit is used when requiring that gas sanitizes degree is higher.Because device adopts the design of blocking, the kind that the standby redundancy that can reduce plant equipment significantly stores and quantity.
(6) compressor used due to this device there is not friction between metallic piston and metal cylinder body and piston reciprocating frequency lower, the noise producing friction is less, does not also consume lubricating oil.
(7) flue gas is through washing, purifying, and its humidity is comparatively large, is discharged in the air under natural situation, is conducive to suppressing flying upward of dust in air.
(8) increase the alternative chimney of blast pipe of end, directly by the gas discharging after washing, purifying to air.
Accompanying drawing explanation
In order to be illustrated more clearly in this device embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below.Obviously, the accompanying drawing in the following describes is only some embodiments of this device, for those of ordinary skill in the art, under the prerequisite not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is flue gas washing purifying treating unit schematic diagram.
Fig. 2 is the process equipment floor plan of flue gas washing purifying treating unit parallel connection.
Fig. 3 is the process equipment floor plan of flue gas washing purifying treating unit series connection.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this device example, the technical scheme in embodiment is clearly and completely described.Obviously described embodiment is only a kind of embodiment of this device, instead of whole embodiments.Based on the embodiment in this device, those of ordinary skill in the art, not paying other embodiments obtained under creative work prerequisite, belong to the protection domain of this device.
Figure 1 shows that first specific embodiment of this device process fire coal boiler fume pollutant emission washing, purifying, its course of work is: the flue gas of discharged from coal-fired boiler enters gas storage cylinder body 4 by admission line 1 and breather check valve 2.When traction machine 10 operates clockwise, by steel wire rope 8 and fixed pulley 9 and piston rod 7, the bell piston 6 of compressor on the left of Fig. 1 is moved upward from water seal cylinder body 3, now the breather check valve 2 of this side is closed, gas in gas storage cylinder body 4 is compressed, gas volume is more and more less, and increasing pressure is large; Meanwhile the volume of bell piston 6 inner chamber is increasing, and gas pressure is more and more less, at this moment, is just passed water seal, enters the inner chamber of bell piston, complete first time washing, purifying in gas storage cylinder body by the gas compressed.Because when traction machine 10 operates, the compressor of Fig. 1 left and right sides works all simultaneously.Now on the right side of Fig. 1, the bell piston 6 of compressor moves downward, and the breather check valve 2 of this side is opened, and the volume in gas storage cylinder body 4 is more and more large, and increasing pressure is little, and boiler smoke enters gas storage cylinder body 4; And the gas volume being immersed in bell piston 6 inner chamber in water seal cylinder body 3 is more and more less, increasing pressure is large, in chamber by the gas that compresses by venting check valve 2 and blast pipe 15, and through the water seal in water seal fumer 14, complete the discharge of second time washing, purifying, enter chimney again, be discharged in the air under natural environment.Bell piston 6 on the left of Fig. 1 moves to top dead-centre, collides the travel switch pre-set, and is automatically converted to the inhour running of traction machine 10; Bell piston 6 on the right side of Fig. 1 moves to top dead-centre, collides the travel switch pre-set, is automatically converted to the clockwise running of traction machine 10, completes the working cycles of the automatic rotating of traction machine, also complete the continuous washing emission abatement of boiler fired coal flue gas.Steel pipe cylinder 5 in Fig. 1 supports traction machine 10, and water intaking valve 11 controls the water inlet of water seal, and water seal control valve 12 controls the liquid level of water seal, and blowoff valve 13 controls the discharge of sewage.
If when the exhaust gas volumn of discharged from coal-fired boiler is larger, the way of several flue gas washing purifying treating unit parallel connections can be adopted to process, its processing procedure is as follows: flue gas enters compressor 2 through the air inlet pipe 1 of Fig. 2, the piston being converted into compressor 2 in the gyration of the traction machine 4 be arranged on operating platform 3 is rectilinear motion, water seal fumer 6 is entered again again after washing, purifying by blast pipe 5 after flue gas is compressed washing, enter chimney, then be discharged in the air under natural environment.
When the smoke discharge amount of chimney is larger, the original way of flue gas washing purifying treating unit can be adopted to process.Its processing procedure is as follows: flue gas enters compressor 2 through the air inlet pipe 1 of Fig. 2, it is rectilinear motion that the traction machine 4 be arranged on operating platform 3 is converted into compressor piston gyration, enter water seal fumer again by blast pipe 5 after flue gas is compressed washing, then access smoke stack emission.
When requiring the cleannes improving flue gas discharged from coal-fired boiler, the way that flue gas washing purifying treating unit can be adopted to connect processes, its processing procedure is as follows: flue gas enters compressor 2 through the air inlet pipe 1 of Fig. 3, the piston being converted into compressor in the gyration of the traction machine 4 be arranged on operating platform 3 is rectilinear motion, flue gas is entered the blast pipe of water seal fumer 6 after compressing washing again by blast pipe 5, be connected in series to next fume treatment unit again, carry out process discharge.Until the flue gas cleannes after process reach requirement, then enter chimney, in the air under air draft to natural environment.
The foregoing is only the preferred embodiment of this device, be not limited to this device.Within all spirit at this device and principle, the amendment made, equivalent replacement, improvement etc., all should be included in the protection domain of this device.
Claims (4)
1. flue gas washing purifying processing device, at least comprises the compressor of two table clock shape pistons and the traction machine of a bell piston of movement and two liquid sealing fumers, the washing, purifying processing unit be formed by connecting with air inlet-outlet pipe.It is characterized in that: compressor is vertical installation, the piston of compressor is bell piston, and the sealing of piston and cylinder body adopts hydraulic seal, and when traction machine works, the bell piston moved upward utilizes piston outer wall Compressed Gas; The bell piston moved downward utilizes piston cavity as cylinder body, and piston is served as in water seal, Compressed Gas.Piston rod is combined by rigid rod and flexible link.Rigid rod moving linearly, flexible link does straight line and gyration.Liquid sealing fumer has the function of vent scrub Purge gas.When using water as sealing fluid, the treating apparatus of washing, purifying flue gas can be made; When using water as sealing, increase air accumulator, air compressor can be made and use; When the blast pipe of vacuum smelting furnace is connected with compressor inleting pipe, just can be used as vavuum pump and use; When making seal fluid with the concentrated sulfuric acid, increase air accumulator, can washing, purifying chlorine, use as chlorine gas compressor.
2. flue gas washing purifying processing device according to claim 1, is characterized in that: described vertical compressor is two, and liquid sealing fumer is two, is symmetricly set in traction machine both sides.
3. a boiler smoke washing, purifying treating apparatus, comprises connecting pipe, it is characterized in that: connect compressor described in claim 1 or 2 and liquid sealing fumer with pipeline, form complete flue gas washing purifying processing device.Flue gas after washing, purifying is connected with chimney through blast pipe, is discharged in air.
4. boiler smoke washing, purifying treating apparatus according to claim 3, is characterized in that: the seal fluid in casing is water, and water can wash the particle in flue gas, makes it be deposited in water; The gases such as SO2, NO2, CO2 in flue gas have character soluble in water, utilize its character to make gas water-soluble, form acid solution.Particle can filter Post RDBMS process, acid solution recoverable or with in alkali and rear recovery, uses as sealing water conservancy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510262235.2A CN104906933A (en) | 2015-05-21 | 2015-05-21 | Smoke gas washing, purifying and treating device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510262235.2A CN104906933A (en) | 2015-05-21 | 2015-05-21 | Smoke gas washing, purifying and treating device |
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| CN104906933A true CN104906933A (en) | 2015-09-16 |
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| CN201510262235.2A Withdrawn CN104906933A (en) | 2015-05-21 | 2015-05-21 | Smoke gas washing, purifying and treating device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4718922A (en) * | 1984-06-20 | 1988-01-12 | Spiro Research B.V. | Method of and apparatus for the deaeration of liquid flowing in a closed circulation system |
| CN2629811Y (en) * | 2003-07-03 | 2004-08-04 | 鲍满腔 | Dust-removing air-changing device |
| CN101190395A (en) * | 2006-11-28 | 2008-06-04 | 刘运武 | Fire smoke cooling-down dust removing purifier |
| CN101196374A (en) * | 2007-04-18 | 2008-06-11 | 韩贵胜 | Piston type energy-saving dedusting environment friendly system |
| CN102847395A (en) * | 2011-06-30 | 2013-01-02 | 刘运武 | Device for fume cooling and dedusting and air purification |
-
2015
- 2015-05-21 CN CN201510262235.2A patent/CN104906933A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4718922A (en) * | 1984-06-20 | 1988-01-12 | Spiro Research B.V. | Method of and apparatus for the deaeration of liquid flowing in a closed circulation system |
| CN2629811Y (en) * | 2003-07-03 | 2004-08-04 | 鲍满腔 | Dust-removing air-changing device |
| CN101190395A (en) * | 2006-11-28 | 2008-06-04 | 刘运武 | Fire smoke cooling-down dust removing purifier |
| CN101196374A (en) * | 2007-04-18 | 2008-06-11 | 韩贵胜 | Piston type energy-saving dedusting environment friendly system |
| CN102847395A (en) * | 2011-06-30 | 2013-01-02 | 刘运武 | Device for fume cooling and dedusting and air purification |
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Application publication date: 20150916 |
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