CN102940983A - Defecator for desulfurization wastewater treatment - Google Patents
Defecator for desulfurization wastewater treatment Download PDFInfo
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- CN102940983A CN102940983A CN2012104916770A CN201210491677A CN102940983A CN 102940983 A CN102940983 A CN 102940983A CN 2012104916770 A CN2012104916770 A CN 2012104916770A CN 201210491677 A CN201210491677 A CN 201210491677A CN 102940983 A CN102940983 A CN 102940983A
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- pond body
- desulfurization wastewater
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- clarifier
- bucket device
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Abstract
The invention discloses a defecator for desulfurization wastewater treatment. The defecator comprises a tank, a rotational flow barrel, a water inlet pipe and a water outlet pipe, the rotational flow barrel is mounted at the top of the tank, the water inlet pipe is communicated with the rotational flow barrel, a water outlet overflow weir is arranged at the top of the tank, the water outlet pipe is communicated with the water outlet overflow weir, a bottom plate folded towards the center of the tank is arranged at the bottom end of the tank, a mud bucket device is arranged at the center of the bottom plate, and the outer wall of the mud bucket device is provided with a structure folded towards the center of the mud bucket device. The defecator is simple in structure, flocculation effects can be enhanced, settling time is shortened, sludge concentration effects are strengthened, and subsequent sludge dewatering is facilitated.
Description
Technical field
The present invention relates to a kind of clarifier for the desulfurization wastewater processing, belong to the desulfurization wastewater processing technology field.
Background technology
At present, smoke-gas wet desulfurization (the limestone/gypsum method is called for short FGD), desulfurization actual operating efficiency the highest and most widely used sulfur removal technology the most ripe as world today's technology is widely used for the coal desulfurization system.And the FGD system prevents soluble fraction in the flue gas in order to keep the balance of desulfurizer slurries circulatory system material, and namely cl concn surpasses setting and guarantees gypsum quality, must discharge a certain amount of waste water from desulphurization system, and this type of waste water is desulfurization wastewater.And such desulfurization wastewater, a large amount of impurity that contain are such as a large amount of suspensions, oversaturated sulphite, sulfate and heavy metal; And waste water has following characteristics: turbidity is high, suspension content is large, contain the plurality of heavy metal material, contain F-, be acid, Cl-content is high, large to equipment corrosion, and main process equipment---the desulfurization wastewater clarifier of processing as such desulfurization wastewater, with regard to such desulfurization wastewater clarifier, domestic many units develop, as the clarifier of swash plate is housed, the pressure type clarifier, even with the clarifier of filtrate form, and with regard to these equipment, exist device structure design imperfection always, the Operation and Maintenance amount is large, outlet effect is not good, mud concentrates and is unfavorable for follow-up sludge dewatering, the equipment corrosion resistance is not enough to adapt to shortcomings and the problems such as waste water quality.
Summary of the invention
Technical problem to be solved by this invention is the defective that overcomes prior art, provide a kind of simple in structure, can strengthen flocculating effect, accelerate the sedimentation time, the concentrated effect of reinforcement sludge is conducive to the clarifier that desulfurization wastewater is processed that is used for of follow-up sludge dewatering.
In order to solve the problems of the technologies described above, technical scheme of the present invention is: a kind of clarifier for the desulfurization wastewater processing, comprise pond body, whirl cylinder, water inlet pipe and outlet pipe, whirl cylinder is installed in the top of pond body, water inlet pipe is communicated with whirl cylinder, the top of pond body is provided with effluent overflow weir water, outlet pipe is communicated with this effluent overflow weir water, the bottom of pond body has and is the base plate that draws shape in to its center, the center of base plate is provided with the bucket device, and the outer wall of this bucket device is for to be the structure of drawing shape in to its center.
Further, the bottom of described pond body is provided with support post, and the top of described pond body is provided with the crane span structure platform.
The sampler of on vertical direction each functional areas of can manually taking a sample further, is installed on the top of the external wall in described pond.
Further, the axial direction of the axial direction of described water inlet pipe and whirl cylinder is perpendicular.
Further, the angle α of described base plate and pond body cross section is 8 ° ~ 15 °.
Further, the angle β of the outer wall of described bucket device and pond body cross section is 50 ° ~ 70 °.
Further, the cross section of described pond body is circular configuration.
Further, the surface of described effluent overflow weir water is a plurality of triangle crest of weir structures.
After having adopted technique scheme, the present invention has following beneficial effect:
1, the present invention has strengthened flocculating effect, desulfurization wastewater is that helical form descends in the whirl cylinder of the present invention, the time of staying in whirl cylinder can reach 8 ~ 15min, the diameter of the particle in the desulfurization wastewater and volume can increase gradually, strengthened its flocculating effect, thereby can effectively water have been separated from particle.
2, the present invention has accelerated the sedimentation time, because the sinking speed of particle is directly proportional with the quadratic power of the diameter of particle, so the mud granule of large volume has been accelerated sinking speed, has shortened the sedimentation time, is conducive to sludge settling.
3, the present invention has strengthened the concentrated effect of mud, because the outer wall of base plate and bucket device is the structure of drawing shape to its center in, under Action of Gravity Field, be conducive on the one hand the collection of mud, on the other hand, strengthen the inspissation of mud, be conducive to follow-up sludge dewatering.
4, the surface of effluent overflow weir water is a plurality of triangle crest of weir structures, and this kind structure can reduce the interference to current as far as possible, guarantees that water outlet of the present invention is clean.
Description of drawings
Fig. 1 is the structural representation of the clarifier of processing for desulfurization wastewater of the present invention.
Fig. 2 is that desulfurization wastewater flows to schematic diagram in whirl cylinder.
The specific embodiment
Content of the present invention is easier to be expressly understood in order to make, and the below is according to specific embodiment and by reference to the accompanying drawings, and the present invention is further detailed explanation,
Shown in Fig. 1 ~ 2, a kind of clarifier for the desulfurization wastewater processing, comprise pond body 3, whirl cylinder 4, water inlet pipe 10 and outlet pipe 11, whirl cylinder 4 is installed in the top of pond body 3, and water inlet pipe 10 is communicated with whirl cylinder 4, and the top of pond body 3 is provided with effluent overflow weir water 12, outlet pipe 11 is communicated with this effluent overflow weir water 12, the bottom of pond body 3 has to its center and is the base plate 6 that draws shape in, and the center of base plate 6 is provided with bucket device 7, and the outer wall of this bucket device 7 is for to be the structure of drawing shape in to its center.The bottom of pond body 3 is provided with support post 9, and the top of pond body 3 is provided with crane span structure platform 1.The present invention has strengthened flocculating effect, whirl cylinder 4 interior desulfurization wastewaters of the present invention are that helical form descends, the time of staying in whirl cylinder 4 can reach 8 ~ 15min, the diameter of the particle in the desulfurization wastewater and volume can increase gradually, strengthened its flocculating effect, thereby can effectively water have been separated from particle.The present invention has accelerated the sedimentation time, because the sinking speed of particle is directly proportional with the quadratic power of the diameter of particle, so the mud granule of large volume has been accelerated sinking speed, has shortened the sedimentation time, is conducive to sludge settling.The present invention has strengthened the concentrated effect of mud, because the outer wall of base plate 6 and bucket device 7 is the structure of drawing shape to its center in, under Action of Gravity Field, be conducive on the one hand the collection of mud, on the other hand, strengthen the inspissation of mud, be conducive to follow-up sludge dewatering.
In order to chemically examine the clean water after processing, as shown in Figure 1, the sampler 5 of on vertical direction each functional areas of can manually taking a sample is installed on the top of pond body 3 outer walls.
For desulfurization wastewater can be descended at whirl cylinder 4 inner-spiral types better, reach maximum flocculating effect, as shown in Figure 1, the axial direction of the axial direction of water inlet pipe 10 and whirl cylinder 4 is perpendicular.
In order further to strengthen its concentrated effect to mud, as shown in Figure 1, base plate 6 is 8 ° ~ 15 ° with the angle α of pond body 3 cross sections.The angle β of the outer wall of bucket device 7 and pond body 3 cross sections is 50 ° ~ 70 °.
In order to reduce the interference to current as far as possible, guarantee that water outlet of the present invention is clean, as shown in Figure 1, the surface of effluent overflow weir water 12 is a plurality of triangle crest of weir structures.
The cross section of pond body 3 is circular configuration.
The supporting mouth of pipe 8 is housed on the bucket device 7.
Operation principle of the present invention is as follows:
Desulfurization wastewater is by FEOL equipment, flocculation tanks such as typical process, enter the present invention, enter whirl cylinder 4 via water inlet pipe 10, desulfurization wastewater is tangential manner because enter whirl cylinder 4, so the waste water fluidised form form in the whirl cylinder 4 as shown in Figure 2, because coagulation, muddy water is separated owing to proportion is different, and clear water rises to effluent overflow weir water 12 and collected, the mud that density is larger then is deposited in base plate 6 places by precipitation, because base plate 6 inclination angles reach the collecting action of the mud scraper of establishing in addition, the mud landing is concentrated under Action of Gravity Field in bucket device 7, improve mud containing rate, thereby be beneficial to sludge dewatering.
By the Stockes formula, i.e. sinking speed formula in the gravitational field:
Wherein, the sinking speed of v-particle in gravitational field, r-particle radius, η-coefficient of viscosity, ρ-density, ρ
0-solution density, g-acceleration of gravity.
By following formula as can be known, 1. sinking speed has significant dependence to granular size, and particle diameter increases 1 times, and sinking speed increases to 4 times; 2. can be poor by regulating density, the control infall process; 3. reduce the medium viscosity, can improve sinking speed.
Based on the Stockes formula, according to waste water fluidised form and character, the present invention can divide two parts: flocculation sediment stage and crowded subsidence stage.
The flocculation sediment stage: flocculating setting refers to the precipitation state of waste water after processing through the dosing of flocculant, be that waste water enters whirl cylinder 4 with tangential form, and descend at the cylinder inward eddy with Fig. 2 form, strengthened flocculating effect, even the particle diameter in the waste water, volume increase, clear water rises along the pond body, 12 places are collected in effluent overflow weir water, and effluent overflow weir water 12 adopts the triangle crest of weir, can reduce the interference to current as far as possible, guarantees that the water outlet of clarifier is clean.
Crowded subsidence stage: because desulfurization wastewater belongs to the waste water that contains high concentration suspended solid, and in such high concentration suspended solid settling system, closely the velocity field between the particle is blocked, thereby liquid is upwards discharged crowded precipitation occurs.So, just require the settling velocity of mud granule greater than this part outer upflow velocity of clapping ascending water, and according to the Stockes formula, the sinking speed of particle is directly proportional with the quadratic power of the diameter of particle, so the large volume mud granule utmost point that the flocculation sediment stage forms is beneficial to the sludge settling of crowded subsidence stage.Thus, the waste water of the present invention bottom is also clarified, and mud is concentrated.
Simultaneously, base plate 6 and bucket device 7 adopt and horizontal direction arranged in form form with angle, and under Action of Gravity Field, be beneficial on the one hand mud and collect, on the other hand, but the inspissation of reinforcement sludge.And α adopts 8 ° ~ 15 °, and β adopts 50 ° ~ 70 °, mainly considers wastewater sludge main component---CaSO
4Physicochemical property, and the manufacture difficulty that makes simultaneously equipment is in controlled range.
The present invention adopts gravity streaming treatment process, to coming water without pressure requirement, non-power consumption.And after clarification, several pollution factors of desulfurization wastewater such as high suspended matter, heavy metal etc., all can be removed.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. one kind is used for the clarifier that desulfurization wastewater is processed, comprise pond body (3), whirl cylinder (4), water inlet pipe (10) and outlet pipe (11), whirl cylinder (4) is installed in the top of pond body (3), water inlet pipe (10) is communicated with whirl cylinder (4), the top of pond body (3) is provided with effluent overflow weir water (12), outlet pipe (11) is communicated with this effluent overflow weir water (12), the bottom of pond body (3) has and is the base plate (6) that draws shape in to its center, it is characterized in that: the center of base plate (6) is provided with bucket device (7), and the outer wall of this bucket device (7) is for to be the structure of drawing shape in to its center.
2. the clarifier of processing for desulfurization wastewater according to claim 1, it is characterized in that: the bottom of described pond body (3) is provided with support post (9), and the top of described pond body (3) is provided with crane span structure platform (1).
3. the clarifier of processing for desulfurization wastewater according to claim 1 is characterized in that: the sampler (5) that on vertical direction each functional areas of can manually taking a sample are installed on described pond body (3) outer wall.
4. the clarifier of processing for desulfurization wastewater according to claim 2 is characterized in that: the sampler (5) that on vertical direction each functional areas of can manually taking a sample are installed on described pond body (3) outer wall.
5. according to claim 1 to 4 each described clarifiers for the desulfurization wastewater processing, it is characterized in that: the axial direction of the axial direction of described water inlet pipe (10) and whirl cylinder (4) is perpendicular.
6. according to claim 1 to 4 each described clarifiers for the desulfurization wastewater processing, it is characterized in that: described base plate (6) is 8 ° ~ 15 ° with the angle α of pond body (3) cross section.
7. according to claim 1 to 4 each described clarifiers for the desulfurization wastewater processing, it is characterized in that: the angle β of the outer wall of described bucket device (7) and pond body (3) cross section is 50 ° ~ 70 °.
8. the clarifier of processing for desulfurization wastewater according to claim 6, it is characterized in that: the angle β of the outer wall of described bucket device (7) and pond body (3) cross section is 50 ° ~ 70 °.
9. according to claim 1 to 4 described clarifiers for the desulfurization wastewater processing, it is characterized in that: the cross section of described pond body (3) is circular configuration.
10. according to claim 1 to 4 described clarifiers for the desulfurization wastewater processing, it is characterized in that: the surface of described effluent overflow weir water (12) is a plurality of triangle crest of weir structures.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012104916770A CN102940983A (en) | 2012-11-28 | 2012-11-28 | Defecator for desulfurization wastewater treatment |
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| CN2012104916770A CN102940983A (en) | 2012-11-28 | 2012-11-28 | Defecator for desulfurization wastewater treatment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106110719A (en) * | 2016-08-16 | 2016-11-16 | 卓宇轩 | A kind of gravity concentration device |
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| CN101353189A (en) * | 2008-09-19 | 2009-01-28 | 新疆时代石油工程有限公司 | Single cyclone coagulation reactor and oil-contaminated water processing method |
| CN101767855A (en) * | 2010-01-22 | 2010-07-07 | 西安长庆科技工程有限责任公司 | Sludge cyclic coagulating sedimentation waste water treatment technology |
| CN101982425A (en) * | 2010-11-08 | 2011-03-02 | 新疆石油勘察研究设计院（有限公司） | In-tank filtering backwashing water recycle device |
| CN102755768A (en) * | 2012-07-30 | 2012-10-31 | 葛洲坝集团第一工程有限公司 | Sludge treatment device used at pressure type pumping and drainage outlet |
| CN202951293U (en) * | 2012-11-28 | 2013-05-29 | 常州江南电力环境工程有限公司 | Defecator for treating desulfurization waste water |
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- 2012-11-28 CN CN2012104916770A patent/CN102940983A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101353189A (en) * | 2008-09-19 | 2009-01-28 | 新疆时代石油工程有限公司 | Single cyclone coagulation reactor and oil-contaminated water processing method |
| CN101767855A (en) * | 2010-01-22 | 2010-07-07 | 西安长庆科技工程有限责任公司 | Sludge cyclic coagulating sedimentation waste water treatment technology |
| CN101982425A (en) * | 2010-11-08 | 2011-03-02 | 新疆石油勘察研究设计院（有限公司） | In-tank filtering backwashing water recycle device |
| CN102755768A (en) * | 2012-07-30 | 2012-10-31 | 葛洲坝集团第一工程有限公司 | Sludge treatment device used at pressure type pumping and drainage outlet |
| CN202951293U (en) * | 2012-11-28 | 2013-05-29 | 常州江南电力环境工程有限公司 | Defecator for treating desulfurization waste water |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106110719A (en) * | 2016-08-16 | 2016-11-16 | 卓宇轩 | A kind of gravity concentration device |
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Application publication date: 20130227 |