CN104028072B - Cyclonic multi-stage flue gas cleaning equipment of turning back is utilized to carry out the method for gas cleaning - Google Patents
Cyclonic multi-stage flue gas cleaning equipment of turning back is utilized to carry out the method for gas cleaning Download PDFInfo
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- CN104028072B CN104028072B CN201410282097.XA CN201410282097A CN104028072B CN 104028072 B CN104028072 B CN 104028072B CN 201410282097 A CN201410282097 A CN 201410282097A CN 104028072 B CN104028072 B CN 104028072B
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Abstract
The invention discloses the method utilizing Cyclonic multi-stage flue gas cleaning equipment of turning back to carry out gas cleaning, comprise flue gas coarse filtration process, liquid phase medium washing process, liquid phase medium purification, drying, adopt flue gas purifying method of the present invention, more domestic semidry method, dry method, wet method and the single liquid medium filter flue gases purification generally used is effective, and water consumption, power consumption, amount of consumption of drugs are low.
Description
Technical field
The present invention relates to filed of flue gas purification, particularly relate to a kind of utilization Cyclonic multi-stage flue gas cleaning equipment of turning back and carry out the method for gas cleaning.
Background technology
At present usually dry method and semidry method are adopted to the dusty gas purification that burning produces, spray in a container by needing purifying smoke, spray into dry alkaline matter simultaneously or spray into alkaline substance solution, dusty gas is in contact with it, reach combination reaction purifying contaminated gas object, but removal efficiency is lower.The liquid medium filter that another tradition is single better can not purify the dusty gas that dust-laden is many, grit footpath is large, through blocked purification efficiency and the filter screen of affecting gradually of filter mesh by premature wear, increase operating cost, effect of simultaneously drying is low, cause discharging flue gas Cheng Baiyan shape, landscape effect is poor.
Summary of the invention
The object of the invention is to solve deficiency of the prior art, the method utilizing Cyclonic multi-stage flue gas cleaning equipment of turning back to carry out gas cleaning is provided.
In order to achieve the above object, technical scheme provided by the present invention is: utilize Cyclonic multi-stage flue gas cleaning equipment of turning back to carry out the method for gas cleaning, comprise the steps:
(1) flue gas coarse filtration, needs the flue gas of purification by elementary deduster, and the grit material being more than 3mm particle diameter in flue gas is removed;
(2) liquid phase medium washing
(2.1) flue gas enters liquid phase medium washer A district by air inlet pipe, by Powerless spiral baffle, flue gas is spread to A district Quick uniform, form A district negative pressure thorax simultaneously, make Partial Liquid Phase medium with flue gas rotational agitation in A district, make liquid phase medium mixture constantly stir simultaneously, in flue gas, grit material is deposited to bottom casing shell, is discharged by slag outlet, reaches flue gas and liquid phase medium primary purification effect;
(2.2) flue gas liquid phase medium mixture is by the buncher of multilayer different cross-sectional, and again carry out purification process, the liquid phase medium after purification flows to casing shell wall with buncher inclined plane and then discharged by slag outlet;
(2.3) gas liquid mixture enters liquid phase medium washer B district, and in B district, flue gas carries out third time purification process with liquid phase medium;
(3) liquid phase medium purification, dehumidification, after third time purification, flue gas enters the dehumidification synthesizer be made up of deflector and expansion thorax, water vapour in flue gas is removed, flue gas carries out the 4th purification process with gaseous state shape liquid phase medium in removal process simultaneously, need purifying contaminated flue gas thoroughly to be purified, enter air by blast pipe through air-introduced machine.
Further, described elementary deduster is cyclone dust collectors, sack cleaner or electrostatic precipitator.
Adopt technique scheme, the technique effect that the present invention produces has:
The present invention causes running abnormal and dry method to the weak point that existing single device exists technology, semidry method operating cost is high, power consumption is large, the low situation of purification efficiency, there is provided a kind of utilization Cyclonic multi-stage flue gas cleaning equipment of turning back to carry out the method for gas cleaning, clean-up effect is high, reliable, cost is low.Elementary dedusting is that the equipment of the mature and reliable such as the cyclone dust collectors having run many decades carries out the first order and takes off dirt, grit material based on Large stone in flue gas is disposed, create conditions for liquid phase medium washer normally runs, improve its purification efficiency and extension device service time.After after elementary de-dirt, flue gas enters liquid phase medium washer, the de-dirt of second time and first time liquid phase medium purification is carried out in A district, then second stage flue gas liquid phase medium purification is carried out by buncher, continue upwards to enter B district, carry out expansion gas liquid interfacial area and extend catching and combination reaction time phase III purification process, then enter the synthesizer that dries and carry out fourth stage final purification process, thus substantially increase clean-up effect.Can remove more than 0.1 μm grit through the inventive method, flue gas purifying method of the present invention is than domestic semidry method, dry method, wet method and the single liquid medium filter flue gases purification generally used is effective at present, and water consumption, power consumption, consumption medicine are low.
Accompanying drawing explanation
Fig. 1 is flow chart of the present invention;
Fig. 2 be the present invention turn back Cyclonic multi-stage flue gas purification integrated equipment structural representation;
Fig. 3 is the structural representation of buncher;
Fig. 4 is that Fig. 2 B-B is to sectional view;
Wherein: 1, casing 2, air inlet pipe 3, air deflector 4, buncher 5, deflector 6, air-introduced machine 7, blast pipe 8, link 9, elementary deduster 11, expansion hall 12, slag outlet 13, cavity 31, rotating shaft 32, blade 41, bundling plate 411, bundle holes.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
As shown in Figure 1, flow chart of the present invention, a kind of utilization Cyclonic multi-stage flue gas cleaning equipment of turning back carries out the method for gas cleaning, comprises the steps:
(1) flue gas coarse filtration, needs the flue gas of purification by cyclone dust collectors, and the grit material being more than 3mm particle diameter in flue gas is removed;
(2) liquid phase medium washing,
(3) liquid phase medium purification, dehumidification, after third time purification, flue gas enters the dehumidification synthesizer be made up of deflector and expansion thorax, water vapour in flue gas is removed, flue gas carries out the 4th purification process with gaseous state shape liquid phase medium in removal process simultaneously, need purifying contaminated flue gas thoroughly to be purified, enter air by blast pipe through air-introduced machine.
As shown in figs 2-4, the Cyclonic multi-stage flue gas purification integrated equipment structural representation of turning back of the present invention's employing, comprises casing 1, air inlet pipe 2, air deflector 3, buncher 4, deflector 5, air-introduced machine 6, blast pipe 7, elementary deduster 9;
Casing 1 is rectangular cylinder shape structure, casing 1 top is provided with bottom expansion hall 11, casing 1 and is provided with slag outlet 12, it is the cavity 13 be communicated with expansion hall 11 and slag outlet 12 respectively in the middle part of casing 1, the diameter of expansion hall 11 is greater than cavity 13 diameter, and expansion hall and cavity transition position are recessed, air inlet and exhaust outlet is provided with at expansion hall 11 top, air inlet pipe 2 is rectangular tube, its one end is communicated with elementary deduster 9, and elementary deduster 9 can be cyclone dust collectors, sack cleaner or electrostatic precipitator etc.Air inlet pipe 2 other end is installed in casing 1 by air inlet, the gas outlet place of air inlet pipe 2 is fixed with criss-cross link 8, air deflector 3 is hinged on link 8, and air deflector 3 comprises rotating shaft 31 and is packed in the spiral helicine blade 32 in rotating shaft 31, and rotating shaft 31 strand is contained on link 8.Buncher 4 comprises some pieces of bundling plates 41, bundling plate 41 described in some pieces is packed on air inlet pipe 2 outer wall by screw mode, and be fixedly connected with by screw between each adjacent bundling plate 41, preferably, buncher 4 comprises two pieces of bundling plates 41 in concave shape, two pieces of bundling plates 41 are installed on the tube wall in casing 1 bottom air inlet pipe 2 by the spill mouth on it, and, two pieces of bundling plates 41 are packed in air inlet pipe 2 outer wall and form three-back-shaped structure, form between two three-back-shaped bundling plates 41 is adopt plug-in type screw to carry out docking to fix, bundling plate 41 with box body wall contact position and and air inlet pipe 2 wall contacts place also adopt and be screwed.Bundling plate 41 is from the downward-sloping setting in casing 1 center to tank wall direction.Bundling plate 41 is provided with some bundle holes 411, all not isometrical setting of the bundle holes 411 on some described bundling plates 41.The buncher 4 of some described structures is parallel and be packed on the tube wall bottom air inlet pipe 2 equally spacedly, described some deflectors 5 are parallel and be packed on air inlet pipe 2 tube wall in expansion hall 11 equally spacedly, deflector 5 offers some air vents, stagger setting in the equal hole of air vent axis on some upper and lower adjacent deflectors 5, on deflector, aperture is increased to upper strata step by step by lower floor, the long limit of deflector is bending, and deflector 5 is connected by screw with box body wall.Air-introduced machine 6 is communicated with the exhaust outlet at expansion hall 11 top by blast pipe 7.
More clear, convenient in order to describe, this device is divided into A district, B district and C district, wherein:
A district is the region between the gas outlet of air inlet pipe and slag outlet;
B district is the region formed with bundling plate top bottom deflector;
C district is the region between deflector top to exhaust outlet;
The following describes bonding apparatus and flue gas purifying method of the present invention is described: need the flue gas of purification through elementary deduster 9, the grit material that particle diameter in flue gas is more than 3mm to be removed, pass through air inlet, flow backwards, vortex accelerates, A district is entered through air inlet pipe, now, the smoke-shock helical blade run up, produce component, helical blade is rotated, flue gas is spread to A district Quick uniform, simultaneously, due to the High Rotation Speed of helical blade, A district is made to form negative pressure thorax, blade bottom negative pressure space also produces a certain amount of lifting force to blade, make superstructure stressed very little, due to suction function, flue gas flow rate increases, make Partial Liquid Phase medium with flue gas rotational agitation in A district, suddenly become large because flue gas enters A district volume, its flow velocity diminishes, pressure reduces, in flue gas, larger grit material falls into media fluid bottom casing shell because of weight own, and be deposited to casing shell bottommost, discharged by slag outlet.Reach flue gas and liquid phase medium primary purification effect, simultaneously with the flue gas of high flow velocities and certain pressure, impact A district liquid, make in flue gas, to need the part dirt particulate matter purified to be captured and chemical combination when contacting liquid phase liquid with sour gas, and become flue gas liquid medium mixture; Make liquid phase medium constantly be stirred simultaneously.Because flue gas will be arranged outward, in moving upward, flue gas becomes column to pass through buncher, because area diminishes suddenly step by step, the multistage quick raising of flue gas flow rate moves upward, drive liquid phase medium upwards to flow together with flue gas simultaneously, form certain altitude gas-liquid post, make in flue gas, to need the dirt particulate matter of purification and sour gas to be captured for a long time and combination reaction again.Flue gas liquid phase medium mixture, being passed by level in formula multilayer different cross-sectional buncher process, carries out second time purification process, purifies unnecessary liquid phase medium and flows to casing inflow bottom along bundling plate inclined plane.Namely buncher is assembled frame structure, and have the hole in the same aperture of some above every layer of bundling plate inserted, all hole area sums constitute the sectional area of gas liquid mixture by this layer of bundling plate.Every layer of bundling plate aperture is different, hole count is the same, sectional area is also different, aperture is maximum from orlop, often diminish gradually to last layer, its objective is and by different pore size, a grit for corresponding different-grain diameter in flue gas is removed, the reacted unnecessary liquid phase medium on the bundling plate tilted along with every layer flows to the lower end of buncher, and cylindrical shell is discharged in timing.Simultaneously, because any one time period passes through the identical theory of buncher every layer bundling plate flow, according to the forst law of motion, the gas-liquid mixed rate of flow of fluid passed through from most top layer bundling plate obtains design value, gas liquid mixture is made to reach optimum value height value in B district, increase flue gas and liquid phase medium contact area, extend chemical time, improve gas cleaning effect.
After gas liquid mixture enters B district, because flue gas is upwards fled, in B district, flue gas carries out third time purification process with liquid phase medium.After third time purification, flue gas enters C district, because gas enters expansion hall enlarged volume, its density diminishes, further, when gas liquid mixture move upward enter baffled area after diversed plate change the direction of motion, speed slows down, the little liquid globule in mixture is encountered above deflector just condenses in, become large gradually because gas liquid mixture constantly acts on the little liquid globule, flow to cylindrical shell tube wall along deflector, in gas liquid mixture, liquid component is separated by a certain amount of.In Engineering Projects, purifying smoke is more than 100 DEG C temperature, and encountering metal deflector, in flue gas, gaseous state liquid will condense in the above, reaches moisture function in separating flue.Expansion hall is entered by the gas liquid mixture of baffled area cutting out partial moisture, volume increases suddenly, in gas liquid mixture, gas density diminishes, and liquid phase medium is constant, because the deadweight of itself is just sunk, its liquid pearl is also superimposed as bulky grain gradually by little and dropped on the guide plate in baffled area, along with the liquid phase medium that deflector condenses flow into buncher reaction by cylindrical shell tube wall after timing discharge cylindrical shell.In flue gas, dirt particulate matter and sour gas are caught and combination reaction in this region again by liquid medium in gaseous state, not only the water vapour in flue gas is got rid of, and the 4th purification process is carried out with gaseous state shape liquid phase medium in removal process, need purifying contaminated flue gas thoroughly to be purified, after enter air through air-introduced machine.
Finally it should be noted that, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (2)
1. utilization Cyclonic multi-stage flue gas cleaning equipment of turning back carries out the method for gas cleaning, it is characterized in that comprising the steps:
(1) flue gas coarse filtration, needs the flue gas of purification by elementary deduster, and the grit material being more than 3mm particle diameter in flue gas is removed;
(2) liquid phase medium washing;
(2.1) flue gas after coarse filtration enters liquid phase medium washer A district by air inlet pipe, by Powerless spiral air deflector, flue gas is spread to A district Quick uniform, form A district negative pressure thorax simultaneously, make Partial Liquid Phase medium with flue gas rotational agitation in A district, make liquid phase medium constantly stir simultaneously, in flue gas, grit material is deposited to bottom casing shell, is discharged by slag outlet, reaches flue gas and liquid phase medium primary purification effect;
(2.2) flue gas liquid phase medium mixture is by the buncher of multilayer different cross-sectional, and again carry out purification process, the liquid phase medium after purification flows to casing shell wall with buncher inclined plane and then discharged by slag outlet;
(2.3) gas liquid mixture enters liquid phase medium washer B district, and in B district, flue gas carries out third time purification process with liquid phase medium;
(3) liquid phase medium purification, dehumidification, after third time purification, flue gas enters the dehumidification synthesizer be made up of deflector and expansion thorax, water vapour in flue gas is removed, simultaneously flue gas in removal water vapor process with gaseous state in liquid phase medium carry out the 4th purification process, need purifying contaminated flue gas thoroughly to be purified;
(4) flue gas after purification enters air by blast pipe through air-introduced machine.
2. utilization according to claim 1 Cyclonic multi-stage flue gas cleaning equipment of turning back carries out the method for gas cleaning, it is characterized in that: described elementary deduster is cyclone dust collectors, sack cleaner or electrostatic precipitator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410282097.XA CN104028072B (en) | 2014-06-23 | 2014-06-23 | Cyclonic multi-stage flue gas cleaning equipment of turning back is utilized to carry out the method for gas cleaning |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410282097.XA CN104028072B (en) | 2014-06-23 | 2014-06-23 | Cyclonic multi-stage flue gas cleaning equipment of turning back is utilized to carry out the method for gas cleaning |
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| Publication Number | Publication Date |
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| CN104028072A CN104028072A (en) | 2014-09-10 |
| CN104028072B true CN104028072B (en) | 2016-02-10 |
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| CN201410282097.XA Expired - Fee Related CN104028072B (en) | 2014-06-23 | 2014-06-23 | Cyclonic multi-stage flue gas cleaning equipment of turning back is utilized to carry out the method for gas cleaning |
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| CN113926273A (en) * | 2021-11-10 | 2022-01-14 | 扬州中康环保设备有限公司 | Turn back multistage gas cleaning equipment of cyclone formula |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB532863A (en) * | 1938-12-14 | 1941-02-03 | Hans Wittemeier | Improvement in or relating to apparatus for the washing or liquid treatment of air |
| CN2277815Y (en) * | 1996-01-29 | 1998-04-08 | 陈长庆 | Composite purifier for self-exciting water-bath fluidized bed |
| CN2416953Y (en) * | 2000-04-11 | 2001-01-31 | 江西省环保机械工程公司 | Full boiling type apparatus for removing sulphur and dust |
| CN2439896Y (en) * | 2000-08-09 | 2001-07-25 | 李俊清 | Smoke dust purifier |
| CN2600721Y (en) * | 2003-01-30 | 2004-01-21 | 邱吉康 | Improved desulfurization dust removing device |
| CN201513291U (en) * | 2009-10-14 | 2010-06-23 | 胡忠夫 | Blower wind-driven generator |
-
2014
- 2014-06-23 CN CN201410282097.XA patent/CN104028072B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB532863A (en) * | 1938-12-14 | 1941-02-03 | Hans Wittemeier | Improvement in or relating to apparatus for the washing or liquid treatment of air |
| CN2277815Y (en) * | 1996-01-29 | 1998-04-08 | 陈长庆 | Composite purifier for self-exciting water-bath fluidized bed |
| CN2416953Y (en) * | 2000-04-11 | 2001-01-31 | 江西省环保机械工程公司 | Full boiling type apparatus for removing sulphur and dust |
| CN2439896Y (en) * | 2000-08-09 | 2001-07-25 | 李俊清 | Smoke dust purifier |
| CN2600721Y (en) * | 2003-01-30 | 2004-01-21 | 邱吉康 | Improved desulfurization dust removing device |
| CN201513291U (en) * | 2009-10-14 | 2010-06-23 | 胡忠夫 | Blower wind-driven generator |
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