CN106268142A - A kind of compound efficient wet scrubber and dust collecting process thereof - Google Patents

A kind of compound efficient wet scrubber and dust collecting process thereof Download PDF

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Publication number
CN106268142A
CN106268142A CN201610808348.2A CN201610808348A CN106268142A CN 106268142 A CN106268142 A CN 106268142A CN 201610808348 A CN201610808348 A CN 201610808348A CN 106268142 A CN106268142 A CN 106268142A
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wet scrubber
dust
dedusting
flue gas
venturi
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CN201610808348.2A
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CN106268142B (en
Inventor
何欢欢
周翔
吴培
刘伟
顾朝晖
宋仁委
段东林
曹重阳
崔增涛
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Henan Black Ecological Technology Co ltd
Xinjiang Xinlianxin Energy Chemical Co ltd
Henan Xinlianxin Chemicals Group Co Ltd
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Henan Xinlianxin Fertilizer Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D50/00Combinations of methods or devices for separating particles from gases or vapours
    • B01D50/40Combinations of devices covered by groups B01D45/00 and B01D47/00

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treating Waste Gases (AREA)
  • Separation Of Particles Using Liquids (AREA)

Abstract

The invention belongs to a kind of compound efficient wet scrubber and dust collecting process thereof;Including the air-introduced machine being connected with boiler smoke discharge tube, air-introduced machine is connected with the lower gas import of wet scrubber by the first import of venturi, described wet scrubber includes wet scrubber cylinder, the top of wet scrubber cylinder is provided with chimney, if the interior middle part of wet scrubber cylinder is provided with dried layer shower, if the bottom of dried layer shower is sequentially provided with gas distributor and covering plate, it is provided with fume pipe between described gas distributor and covering plate, two eddy current type dedusting plates are installed on the position that the bottom of described covering plate is corresponding with the lower gas import of wet scrubber;Having investment cost low, reasonable in design, simple in construction, the suitability is strong, dedusting and desulphurization integrated advantage.

Description

A kind of compound efficient wet scrubber and dust collecting process thereof
Technical field
The invention belongs to flue gas ash removal technical field, be specifically related to a kind of compound efficient wet scrubber and dedusting work thereof Skill.
Background technology
Along with developing rapidly of industry, the discharge of volume of smoke, environment is caused serious pollution, and affects the mankind Existence healthy.Existing wet scrubber utilizes the inertial collision effect of water droplet and flue dust and immixture to make soot dust granule by water Stream is taken away.Thus reach the purpose of dedusting.Due to existing wet scrubber, to there is gas-to-liquid contact undercompounding, time of contact short Etc. problem so that cleaner unit efficiency of dust collection is low, it is the most notable to improve environmental effect.
Summary of the invention
It is an object of the invention to overcome deficiency of the prior art to provide a kind of simple in construction, reasonable in design, increase Gas-liquid contact time, enhance dust removing effects, there is a kind of compound efficient wet type that the suitability is strong and efficiency of dust collection is high remove Dirt device and dust collecting process thereof.
The object of the present invention is achieved like this: includes the air-introduced machine being connected with boiler smoke discharge tube, and air-introduced machine leads to The lower gas import of the first import and wet scrubber of crossing venturi is connected, and described wet scrubber includes wet scrubber Cylinder, the top of wet scrubber cylinder is provided with chimney, if the interior middle part of wet scrubber cylinder is provided with dried layer shower, some The bottom of layer shower is sequentially provided with gas distributor and covering plate, is provided with flue gas between described gas distributor and covering plate Pipe, the position that the bottom of described covering plate is corresponding with the lower gas import of wet scrubber is provided with two eddy current types and removes Dirt plate, after assembling, forms gas channel, described gas channel one end and wet scrubber between two eddy current type dedusting plates Lower gas import is connected, and the other end is connected with fume pipe;If the second of the inlet of dried layer shower and venturi enters Mouth is connected with the bottom liquid outlet of sedimentation tank by water circulating pump respectively, and the bottom liquid inlet mouth of sedimentation tank is removed with wet type by pipeline First liquid outlet of dirt device is connected with the second liquid outlet of wet scrubber, and the first liquid outlet of described wet scrubber is arranged on The bottom of wet scrubber cylinder, the second liquid outlet of described wet scrubber is arranged on the top of covering plate.
Preferably, described fume pipe inwall is provided with several dust boards.
Preferably, if described dried layer shower is three layers.
Preferably, the material of said two eddy current type dedusting plate is rustless steel.
The dust collecting process of a kind of compound efficient wet scrubber, comprises the steps:
Step one: containing dust concentration in boiler smoke discharge tube is 700~1000mg/m3Flue gas pass through air-introduced machine The first import with venturi enters in venturi;The flow of the flue gas of described entrance venturi is 200000m3/ h, temperature is 130~160 DEG C;Being mainly composed of of dust in flue gas: Al2O3, Fe2O3, SiO2, CaO;Wherein, in dust, particle diameter is less than or equal to The dust of 10 μm accounts for the ratio of total dust: 75~80%, and the ratio that particle diameter accounts for total dust more than the dust of 10 μm is: 20%~25%;
Step 2: if the alkali liquor in sedimentation tank is respectively enterd in dried layer shower and venturi by water circulating pump;
Step 3: in described step one, flow is 200000m3/ h, temperature is 130 DEG C~the flue gas of 160 DEG C and step 2 Described in alkali liquor be sufficiently mixed in venturi after under centrifugal action, the most tangential entrance wet scrubber cylinder In;Described is tangentially along the circumferential direction, i.e. vertical with wet scrubber cylinder radius direction;
Step 4: flue gas and alkali liquor after being sufficiently mixed described in step 3 enter in wet scrubber cylinder, due to whirlpool Streaming dedusting plate is arc-shaped structure, and flue gas and alkali liquor after being sufficiently mixed produce vortex, air-flow and air-flow, air-flow and eddy current type After dedusting plate mutually clashes into, the particle diameter of removing 90%~95% is less than more than 10 μm dust, the particle diameter of removing 35%~40% In 10 μm dust, the flue gas after removing dust is entered in fume pipe by gas channel;
Step 5: enter the dust board in fume pipe of the flue gas after the removing dust of fume pipe described in step 4 and stop Formula physics dedusting, can remove the dust of 5%~10% in the flue gas after dedusting by blocking type physics dedusting;
Step 6: on being continued after gas distributor by the flue gas after blocking type physics dedusting described in step 5 If rising the flow with the ejection of dried layer shower is 30~50m3The alkali liquor of/h is fully contacted, thus removes in flue gas 45~50% Dust, the flue gas after dedusting is discharged by chimney;Drop to the absorbing liquid after dedusting and wet scrubber cylinder on covering plate Through the precipitation of sedimentation tank after bottom body, absorbing liquid after dedusting is converged, upper strata clear water is continuing with entering literary composition mound after water circulating pump In the second import in and if dried layer shower.
Preferably, the alkali liquor in sedimentation tank described in described step 2 is one of sodium hydroxide solution or ammonia spirit.
If the present invention combines by arranging eddy current type dedusting plate dried layer shower, it is possible to realize the purpose of classification dedusting, In mid portion fume pipe, dust board enhances dust removing effects, finally can make the overall dust removal efficiency of the present invention be 90%~ 95%, after dedusting, absorbing liquid upper strata alkali liquor reusable edible after sedimentation tank precipitates, has investment cost low, reasonable in design, Simple in construction, the suitability is strong, dedusting and desulphurization integrated advantage.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
In order to be more clearly understood from the technical characteristic of the present invention, purpose and effect, now comparison accompanying drawing illustrates this Bright detailed description of the invention, the most identical label represents identical parts.For making simplified form, in each figure the most schematically Indicate and invent relevant part, they do not represent its practical structures as product.
As it is shown in figure 1, the present invention includes the air-introduced machine 3 being connected with boiler smoke discharge tube, air-introduced machine 3 passes through venturi First import of 2 is connected with the lower gas import of wet scrubber, and described wet scrubber includes wet scrubber cylinder 1, The top of wet scrubber cylinder 1 is provided with chimney 12, if the interior middle part of wet scrubber cylinder 1 is provided with dried layer shower 6, some The bottom of layer shower 6 is sequentially provided with gas distributor 10 and covering plate 8, sets between described gas distributor 10 and covering plate 8 There is fume pipe 9, the position that the bottom of described covering plate 8 is corresponding with the lower gas import of wet scrubber is provided with two Eddy current type dedusting plate 7, after assembling, forms gas channel between two eddy current type dedusting plates 7, described gas channel one end is with wet The lower gas import of formula cleaner unit is connected, and the other end is connected with fume pipe 9;If the inlet of dried layer shower 6 and literary composition In mound, second import of 2 is connected with the bottom liquid outlet of sedimentation tank 4 by water circulating pump 5 respectively, the bottom liquid inlet mouth of sedimentation tank 4 It is connected with the first liquid outlet of wet scrubber and the second liquid outlet of wet scrubber by pipeline, described wet scrubber First liquid outlet is arranged on the bottom of wet scrubber cylinder 1, and the second liquid outlet of described wet scrubber is arranged on covering plate 8 Top.Described fume pipe 9 inwall is provided with several dust boards 11.If described dried layer shower 6 is three layers.Said two whirlpool The material of streaming dedusting plate 7 is rustless steel.
The dust collecting process of a kind of compound efficient wet scrubber, this dust collecting process comprises the steps:
Step one: containing dust concentration in boiler smoke discharge tube is 700~1000mg/m3Flue gas pass through air-introduced machine 3 and the first import of venturi 2 enter in venturi 2;The flow of the flue gas of described entrance venturi 2 is 200000m3/ h, temperature Degree is 130~160 DEG C;Being mainly composed of of dust in flue gas: Al2O3, Fe2O3, SiO2, CaO;Wherein, in dust, particle diameter is less than The ratio accounting for total dust equal to the dust of 10 μm is: 75~80%, and particle diameter accounts for the ratio of total dust more than the dust of 10 μm For: 20%~25%;
Step 2: if the alkali liquor in sedimentation tank 4 is respectively enterd in dried layer shower 6 and venturi 2 by water circulating pump 5;
Step 3: in described step one, flow is 200000m3/ h, temperature is 130 DEG C~the flue gas of 160 DEG C and step 2 Described in alkali liquor be sufficiently mixed in venturi 2 after under centrifugal action, the most tangential entrance wet scrubber cylinder 1 In;Described is tangentially along the circumferential direction, i.e. vertical with wet scrubber cylinder 1 radius direction;
Step 4: flue gas and alkali liquor after being sufficiently mixed described in step 3 enter in wet scrubber cylinder 1, due to whirlpool Streaming dedusting plate 7 is arc-shaped structure, and flue gas and alkali liquor after being sufficiently mixed produce vortex, air-flow and air-flow, air-flow and eddy current After formula dedusting plate 7 mutually clashes into, the particle diameter of removing 90%~95% is less than more than 10 μm dust, the particle diameter of removing 35%~40% Equal to 10 μm dust, the flue gas after removing dust is entered in fume pipe 9 by gas channel;
Step 5: enter the flue gas dust board 11 in fume pipe 9 after the removing dust of fume pipe 9 described in step 4 and carry out Blocking type physics dedusting, can remove the dust of 5%~10% in the flue gas after dedusting by blocking type physics dedusting;
Step 6: being continued after gas distributor 10 by the flue gas after blocking type physics dedusting described in step 5 If rising the flow with dried layer shower 6 ejection is 30~50m3The alkali liquor of/h is fully contacted, thus remove in flue gas 45~ The dust of 50%, the flue gas after dedusting is discharged by chimney 12;Drop to the absorbing liquid after dedusting and wet type on covering plate 8 Through the precipitation of sedimentation tank 4 after bottom cleaner unit cylinder 1, absorbing liquid after dedusting is converged, upper strata clear water continues after water circulating pump 5 If in using the second import and the dried layer shower 6 that enter venturi 2.Described in described step 2, the alkali liquor in sedimentation tank 4 is One of sodium hydroxide solution or ammonia spirit.
The entrance that flue gas in the present invention and alkali liquor are the most tangential under centrifugal action after being sufficiently mixed in venturi 2 In wet scrubber cylinder 1, and producing vortex, air-flow and air-flow, air-flow mutually clash into eddy current type dedusting plate 7 and carry out dedusting, Above-mentioned dedusting method adds gas-liquid contact time, enhances dust removing effects;Enter the flue gas of fume pipe 9 in fume pipe 9 Dust board 11 carries out blocking type physics dedusting, if abundant with the alkali liquor of dried layer shower 6 ejection after blocking type physics dedusting Contact carries out further dedusting, overall dust removal efficiency finally can be made to reach 90%~95%, enable the flue gas of discharge to meet state The relevant regulations of family.Technical scheme has dedusting and desulphurization integrated feature, and overall technical scheme has structure Simply, reasonable in design, the suitability is strong and efficiency of dust collection is high advantage.
For the more detailed explanation present invention, in conjunction with embodiment, the present invention is further elaborated.Specific embodiment As follows:
Embodiment one
The dust collecting process of a kind of compound efficient wet scrubber, this dust collecting process comprises the steps:
Step one: containing dust concentration in boiler smoke discharge tube is 700mg/m3Flue gas by air-introduced machine 3 and literary composition In mound, first import of 2 enters in venturi 2;The flow of the flue gas of described entrance venturi 2 is 200000m3/ h, temperature is 130℃;Being mainly composed of of dust in flue gas: Al2O3, Fe2O3, SiO2, CaO;Wherein, in dust, particle diameter is less than or equal to 10 μm Dust accounts for the ratio of total dust: 75%, and the ratio that particle diameter accounts for total dust more than the dust of 10 μm is: 25%;
Step 2: if the alkali liquor in sedimentation tank 4 is respectively enterd in dried layer shower 6 and venturi 2 by water circulating pump 5;
Step 3: in described step one, flow is 200000m3/ h, temperature is described in flue gas and the step 2 of 130 DEG C Alkali liquor be sufficiently mixed in venturi 2 after under centrifugal action, in the most tangential entrance wet scrubber cylinder 1;Described Tangential is along the circumferential direction, i.e. vertical with wet scrubber cylinder 1 radius direction;
Step 4: flue gas and alkali liquor after being sufficiently mixed described in step 3 enter in wet scrubber cylinder 1, due to whirlpool Streaming dedusting plate 7 is arc-shaped structure, and flue gas and alkali liquor after being sufficiently mixed produce vortex, air-flow and air-flow, air-flow and eddy current After formula dedusting plate 7 mutually clashes into, the particle diameter of removing 90%~95% is less than more than 10 μm dust, the particle diameter of removing 35%~40% Equal to 10 μm dust, the flue gas after removing dust is entered in fume pipe 9 by gas channel;
Step 5: enter the flue gas dust board 11 in fume pipe 9 after the removing dust of fume pipe 9 described in step 4 and carry out Blocking type physics dedusting, can remove the dust of 5%~10% in the flue gas after dedusting by blocking type physics dedusting;
Step 6: being continued after gas distributor 10 by the flue gas after blocking type physics dedusting described in step 5 If rising the flow with dried layer shower 6 ejection is 30~50m3The alkali liquor of/h is fully contacted, thus remove in flue gas 45~ The dust of 50%, the flue gas after dedusting is discharged by chimney 12;Drop to the absorbing liquid after dedusting and wet type on covering plate 8 Through the precipitation of sedimentation tank 4 after bottom cleaner unit cylinder 1, absorbing liquid after dedusting is converged, upper strata clear water continues after water circulating pump 5 If in using the second import and the dried layer shower 6 that enter venturi 2.Described in described step 2, the alkali liquor in sedimentation tank 4 is Sodium hydroxide solution.
Embodiment two
The dust collecting process of a kind of compound efficient wet scrubber, this dust collecting process comprises the steps:
Step one: containing dust concentration in boiler smoke discharge tube is 1000mg/m3Flue gas by air-introduced machine 3 and literary composition In mound, first import of 2 enters in venturi 2;The flow of the flue gas of described entrance venturi 2 is 200000m3/ h, temperature is 160℃;Being mainly composed of of dust in flue gas: Al2O3, Fe2O3, SiO2, CaO;Wherein, in dust, particle diameter is less than or equal to 10 μm Dust accounts for the ratio of total dust: 80%, and the ratio that particle diameter accounts for total dust more than the dust of 10 μm is: 20%;
Step 2: if the alkali liquor in sedimentation tank 4 is respectively enterd in dried layer shower 6 and venturi 2 by water circulating pump 5;
Step 3: in described step one, flow is 200000m3/ h, temperature is described in flue gas and the step 2 of 160 DEG C Alkali liquor be sufficiently mixed in venturi 2 after under centrifugal action, in the most tangential entrance wet scrubber cylinder 1;Described Tangential is along the circumferential direction, i.e. vertical with wet scrubber cylinder 1 radius direction;
Step 4: flue gas and alkali liquor after being sufficiently mixed described in step 3 enter in wet scrubber cylinder 1, due to whirlpool Streaming dedusting plate 7 is arc-shaped structure, and flue gas and alkali liquor after being sufficiently mixed produce vortex, air-flow and air-flow, air-flow and eddy current After formula dedusting plate 7 mutually clashes into, the particle diameter of removing 90%~95% is less than more than 10 μm dust, the particle diameter of removing 35%~40% Equal to 10 μm dust, the flue gas after removing dust is entered in fume pipe 9 by gas channel;
Step 5: enter the flue gas dust board 11 in fume pipe 9 after the removing dust of fume pipe 9 described in step 4 and carry out Blocking type physics dedusting, can remove the dust of 5%~10% in the flue gas after dedusting by blocking type physics dedusting;
Step 6: being continued after gas distributor 10 by the flue gas after blocking type physics dedusting described in step 5 If rising the flow with dried layer shower 6 ejection is 30~50m3The alkali liquor of/h is fully contacted, thus remove in flue gas 45~ The dust of 50%, the flue gas after dedusting is discharged by chimney 12;Drop to the absorbing liquid after dedusting and wet type on covering plate 8 Through the precipitation of sedimentation tank 4 after bottom cleaner unit cylinder 1, absorbing liquid after dedusting is converged, upper strata clear water continues after water circulating pump 5 If in using the second import and the dried layer shower 6 that enter venturi 2.Described in described step 2, the alkali liquor in sedimentation tank 4 is Ammonia spirit.
Embodiment three
The dust collecting process of a kind of compound efficient wet scrubber, this dust collecting process comprises the steps:
Step one: containing dust concentration in boiler smoke discharge tube is 850mg/m3Flue gas by air-introduced machine 3 and literary composition In mound, first import of 2 enters in venturi 2;The flow of the flue gas of described entrance venturi 2 is 200000m3/ h, temperature is 145℃;Being mainly composed of of dust in flue gas: Al2O3, Fe2O3, SiO2, CaO;Wherein, in dust, particle diameter is less than or equal to 10 μm Dust accounts for the ratio of total dust: 77.5%, and the ratio that particle diameter accounts for total dust more than the dust of 10 μm is: 22.5%;
Step 2: if the alkali liquor in sedimentation tank 4 is respectively enterd in dried layer shower 6 and venturi 2 by water circulating pump 5;
Step 3: in described step one, flow is 200000m3/ h, temperature is described in flue gas and the step 2 of 145 DEG C Alkali liquor be sufficiently mixed in venturi 2 after under centrifugal action, in the most tangential entrance wet scrubber cylinder 1;Described Tangential is along the circumferential direction, i.e. vertical with wet scrubber cylinder 1 radius direction;
Step 4: flue gas and alkali liquor after being sufficiently mixed described in step 3 enter in wet scrubber cylinder 1, due to whirlpool Streaming dedusting plate 7 is arc-shaped structure, and flue gas and alkali liquor after being sufficiently mixed produce vortex, air-flow and air-flow, air-flow and eddy current After formula dedusting plate 7 mutually clashes into, the particle diameter of removing 90%~95% is less than more than 10 μm dust, the particle diameter of removing 35%~40% Equal to 10 μm dust, the flue gas after removing dust is entered in fume pipe 9 by gas channel;
Step 5: enter the flue gas dust board 11 in fume pipe 9 after the removing dust of fume pipe 9 described in step 4 and carry out Blocking type physics dedusting, can remove the dust of 5%~10% in the flue gas after dedusting by blocking type physics dedusting;
Step 6: being continued after gas distributor 10 by the flue gas after blocking type physics dedusting described in step 5 If rising the flow with dried layer shower 6 ejection is 30~50m3The alkali liquor of/h is fully contacted, thus remove in flue gas 45~ The dust of 50%, the flue gas after dedusting is discharged by chimney 12;Drop to the absorbing liquid after dedusting and wet type on covering plate 8 Through the precipitation of sedimentation tank 4 after bottom cleaner unit cylinder 1, absorbing liquid after dedusting is converged, upper strata clear water continues after water circulating pump 5 If in using the second import and the dried layer shower 6 that enter venturi 2.Described in described step 2, the alkali liquor in sedimentation tank 4 is Ammonia spirit.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " arranges ", " pacifies Dress " etc. should be interpreted broadly, connect for example, it may be fixing, be integrally connected, it is also possible to be to removably connect;Can also be The connection of two element internals;Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, common for this area For technical staff, above-mentioned term concrete meaning in the present invention can be understood as the case may be.Foregoing detailed description Being only for the illustrating of feasibility embodiment of the present invention, they also are not used to limit the scope of the invention, All made without departing from skill of the present invention spirit equivalent implementations, change and transformation should be included in protection scope of the present invention Within.

Claims (6)

1. a compound efficient wet scrubber, including the air-introduced machine (3) being connected with boiler smoke discharge tube, its feature exists In: air-introduced machine (3) is connected with the lower gas import of wet scrubber by the first import of venturi (2), and described wet type is removed Dirt device includes that wet scrubber cylinder (1), the top of wet scrubber cylinder (1) are provided with chimney (12), wet scrubber cylinder (1) if interior middle part be provided with dried layer shower (6), if the bottom of dried layer shower (6) be sequentially provided with gas distributor (10) and Covering plate (8), is provided with fume pipe (9), the bottom of described covering plate (8) between described gas distributor (10) and covering plate (8) Two eddy current type dedusting plates (7), after assembling, two are installed on the position corresponding with the lower gas import of wet scrubber The lower gas import of gas channel, described gas channel one end and wet scrubber is formed between eddy current type dedusting plate (7) Being connected, the other end is connected with fume pipe (9);If the second import of the inlet of dried layer shower (6) and venturi (2) divides Tong Guo not be connected with the bottom liquid outlet of sedimentation tank (4) by water circulating pump (5), the bottom liquid inlet mouth of sedimentation tank (4) by pipeline with First liquid outlet of wet scrubber is connected with the second liquid outlet of wet scrubber, the first liquid outlet of described wet scrubber Being arranged on the bottom of wet scrubber cylinder (1), the second liquid outlet of described wet scrubber is arranged on the upper of covering plate (8) Portion.
A kind of compound efficient wet scrubber, it is characterised in that: described fume pipe (9) inwall It is provided with several dust boards (11).
A kind of compound efficient wet scrubber, it is characterised in that: if described dried layer shower (6) it is three layers.
A kind of compound efficient wet scrubber, it is characterised in that: said two eddy current type dedusting The material of plate (7) is rustless steel.
5. the dust collecting process of a compound efficient wet scrubber as claimed in claim 1, it is characterised in that: this dust collecting process Comprise the steps:
Step one: containing dust concentration in boiler smoke discharge tube is 700~1000mg/m3Flue gas by air-introduced machine (3) and First import of venturi (2) enters in venturi (2);The flow of the flue gas of described entrance venturi (2) is 200000m3/ h, Temperature is 130~160 DEG C;Being mainly composed of of dust in flue gas: Al2O3, Fe2O3, SiO2, CaO;Wherein, in dust, particle diameter is little It is: 75~80% that particle diameter accounts for the ratio of total dust more than the dust of 10 μm in the ratio accounting for total dust equal to the dust of 10 μm Example is: 20%~25%;
Step 2: the alkali liquor in sedimentation tank (4) passes through water circulating pump (5) if respectively enteing dried layer shower (6) and venturi (2) In;
Step 3: in described step one, flow is 200000m3/ h, temperature is described in flue gas and the step 2 of 130 DEG C~160 DEG C Alkali liquor be sufficiently mixed in venturi (2) after at centrifugal action under, the most tangential entrance wet scrubber cylinder (1) In;Described is tangentially along the circumferential direction, i.e. vertical with wet scrubber cylinder (1) radius direction;
Step 4: flue gas and alkali liquor after being sufficiently mixed described in step 3 enter in wet scrubber cylinder (1), due to eddy current Formula dedusting plate (7) is arc-shaped structure, and flue gas and alkali liquor after being sufficiently mixed produce vortex, air-flow and air-flow, air-flow and eddy current After formula dedusting plate (7) mutually clashes into, the particle diameter of removing 90%~95% is more than 10 μm dust, and the particle diameter of removing 35%~40% is little In equal to 10 μm dust, the flue gas after removing dust is entered in fume pipe (9) by gas channel;
Step 5: enter the flue gas dust board (11) in fume pipe (9) after the removing dust of fume pipe (9) described in step 4 and enter Row blocking type physics dedusting, can remove the dust of 5%~10% in the flue gas after dedusting by blocking type physics dedusting;
Step 6: on being continued after gas distributor (10) by the flue gas after blocking type physics dedusting described in step 5 If rising the flow sprayed with dried layer shower (6) is 30~50m3The alkali liquor of/h is fully contacted, thus remove in flue gas 45~ The dust of 50%, the flue gas after dedusting is discharged by chimney (12);Drop to the absorbing liquid after the upper dedusting of covering plate (8) with Absorbing liquid after wet scrubber cylinder (1) bottom dedusting converge after through the precipitation of sedimentation tank (4), upper strata clear water is through water circulating pump (5) be continuing with after enter venturi (2) if the second import and dried layer shower (6) in.
A kind of dust collecting process of compound efficient wet scrubber, it is characterised in that: described step Alkali liquor in sedimentation tank described in two (4) is one of sodium hydroxide solution or ammonia spirit.
CN201610808348.2A 2016-08-29 2016-08-29 A kind of compound efficient wet scrubber and its dust collecting process Active CN106268142B (en)

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN110281409A (en) * 2019-06-13 2019-09-27 菏泽城建工程发展集团有限公司 A kind of cutting CF wallboard automatic dustfall device
CN115350548A (en) * 2022-08-25 2022-11-18 广东兴荣环保科技有限公司 Dust removal and odor removal device for dust-containing waste gas and treatment method

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