CN211813893U - Desulfurization waste water multi-stage treatment system - Google Patents
Desulfurization waste water multi-stage treatment system Download PDFInfo
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- CN211813893U CN211813893U CN202020221013.2U CN202020221013U CN211813893U CN 211813893 U CN211813893 U CN 211813893U CN 202020221013 U CN202020221013 U CN 202020221013U CN 211813893 U CN211813893 U CN 211813893U
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Abstract
The utility model discloses a desulfurization waste water multistage processing system, including depositing reservoir and multistage adsorption equipment, be equipped with one row at least swash plate in the depositing reservoir, install the plate electrode on the swash plate, be located both ends swash plate upper electrode plate and meet with steady voltage direct current power supply positive negative pole respectively, depositing reservoir one side is equipped with the catch basin, and the catch basin intercommunication has an intake box, and the intake box other end is linked together with the fluidized bed adsorption column, the fluidized bed adsorption column is linked together with the fixed bed adsorption column, and fixed bed adsorption column bottom is equipped with the delivery port, fluidized bed adsorption column bottom is equipped with the micropore aeration head, and the micropore aeration head switches on with the air-blast aerator machine. The utility model discloses the clarification tank utilizes the ability of hastelling the shallow pond theory and floc entrapment fine particles thing to combine together, improves out water quality of water, reduces suspended solid concentration and fluoride ion concentration, and multistage adsorption equipment adopts the adsorption column to combine together with blast air aeration machine and micropore aeration head, gets rid of COD when getting rid of the heavy metal.
Description
Technical Field
The utility model belongs to the technical field of waste water treatment, concretely relates to desulfurization waste water multi-stage treatment system.
Background
The desulfurization wastewater mainly refers to wastewater discharged in the wet desulfurization process of boiler flue gas. The main components of the desulfurization wastewater are suspended matters, heavy metals, supersaturated sulfate and sulfite. The water quality characteristics of the wastewater are as follows: high suspended matter concentration, high heavy metal concentration, high COD (chemical oxygen demand, which refers to the amount of reducing substances that can be oxidized by an oxidizing agent) concentration, high fluoride ion concentration, and the like. Therefore, in the desulfurization wastewater treatment facility, the adsorption apparatus occupies an important position.
The conventional adsorption apparatus includes a fixed bed, a fluidized bed, etc., but these adsorption apparatuses are prone to clogging, require back flushing, and have problems such as unsatisfactory COD treatment effect.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned drawbacks and deficiencies of the prior art, it would be desirable to provide a desulfurization wastewater multi-stage treatment system to solve the above-mentioned problems of the background art.
The utility model adopts the technical scheme that the desulfurization wastewater multi-stage treatment system comprises a clarification tank and a multi-stage adsorption device, wherein a water inlet is arranged at the edge of the clarification tank, at least one row of inclined plates are arranged inside the clarification tank, electrode plates which are connected with a voltage-stabilizing direct-current power supply are fixed on the inclined plates, a mud valve is arranged at the bottom of the clarification tank, and the top of the clarification tank is communicated with a water collecting tank; the multistage adsorption device comprises at least one fluidized bed adsorption column and at least one fixed bed adsorption column, the fluidized bed adsorption column and the fixed bed adsorption column are communicated, the bottom of the fluidized bed adsorption column is communicated with the water collecting tank through a water inlet tank, a microporous aeration head is arranged at the bottom of the fluidized bed adsorption column, the microporous aeration head is communicated with an air outlet of a blast aerator, and a water outlet is arranged at the bottom of the fixed bed adsorption column.
Preferably, the inclined plate is a PVC plate, and a clamping groove for mounting the electrode plate is formed in the inclined plate.
Preferably, the inclined plate surface forms an angle of 60 ° with the horizontal plane.
Preferably, a water inlet pump communicated with the water inlet tank and the fluidized bed adsorption column is arranged between the water inlet tank and the fluidized bed adsorption column.
Preferably, a water inlet regulating valve and a water inlet flow meter are sequentially connected between the water inlet pump and the fluidized bed adsorption column.
Preferably, the top of fluidized bed adsorption column is equipped with the feed inlet and is used for controlling the feed inlet feed valve, the bottom of fluidized bed adsorption column is equipped with the discharge gate and is used for controlling the ejection of compact discharge valve.
Preferably, an air inlet flow meter and an air inlet adjusting valve are connected between the microporous aeration head and the blast aerator.
Preferably, the top of the fixed bed adsorption column is provided with a feed inlet and a feed valve for controlling feeding.
Preferably, a perforated plate is arranged in the fluidized bed adsorption column.
Preferably, the fluidized bed adsorption column and the fixed bed adsorption column are filled with an adsorbent.
The utility model discloses beneficial effect who has: the clarification tank combines the Harvest shallow tank theory with the capability of floc trapping fine particles, improves the effluent quality, and reduces the concentration of suspended matters and the concentration of fluorine ions. The multistage adsorption device utilizes the adsorption performance of the adsorbent and the oxidation performance of air blown by the blast aerator to enable the desulfurization wastewater, the air and the adsorbent to be in a fluidized state, and can effectively remove heavy metals, COD (chemical oxygen demand) and fluoride ions in the desulfurization wastewater.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
FIG. 1 is an overall structural view of a desulfurization wastewater multi-stage treatment system of the present invention;
FIG. 2 is a partial enlarged view of the fluidized bed adsorption column and fixed bed adsorption column of the present invention;
FIG. 3 is a schematic plan view of the position relationship between the inclined plate and the electrode plate of the present invention;
in the figure: 101. a clarification tank; 102. a multi-stage adsorption device; 2. a water inlet; 3. a sloping plate; 4. a mud valve; 5. an electrode plate; 6. a regulated DC power supply; 7. a water collection tank; 8. fluidized bed adsorption columns; 801. fluidized bed adsorption column A; 8011. feed inlet a1(ii) a 8012. Feed valve b1(ii) a 8013. Discharge hole c1(ii) a 8014. Discharge valve d1(ii) a 8015. Perforated plate e1(ii) a 802. Fluidized bed adsorption column B; 8021. feed inlet a2(ii) a 8022. Feed valve b2(ii) a 8023. Discharge hole c2(ii) a 8024. Discharge valve d2(ii) a 8025. Perforated plate e2(ii) a 9. A fixed bed adsorption column; 901. a water outlet; 902. a water outlet valve; 903. feed inlet a3(ii) a 904. Feed valve b3(ii) a 10. A water inlet tank; 11. a water inlet pump; 12. a microporous aeration head; 13. a blast aerator; 14. a water inlet regulating valve; 15. a water inlet flow meter; 16. an air inlet regulating valve; 17. air intake flowmeter
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
As shown in fig. 1, 2, 3, a desulfurization waste water multi-stage treatment system, including depositing reservoir 101 and multi-stage adsorption device 102, depositing reservoir 101 top is square, and the bottom longitudinal section is triangle-shaped, and the border of depositing reservoir 101 is equipped with a water inlet 2 for let in desulfurization waste water in depositing reservoir 101, be equipped with a plurality of swash plates 3 that are a row of distribution in depositing reservoir 101, on swash plate 3 was fixed in the backup pad of locating in depositing reservoir 101, depositing the mud in depositing reservoir 101 bottom was equipped with mud valve 4 to the bottom of depositing for discharge. The inclined plates 3 are provided with clamping grooves, electrode plates 5 are fixed in the clamping grooves, and the electrode plates 5 on the inclined plates 3 at the two ends of the clarification tank 101 are respectively connected with the positive and negative electrodes of the voltage-stabilizing direct-current power supply 6. A water collecting tank 7 is arranged on one side of the top of the clarification tank 101, and the desulfurization wastewater clarified by the clarification tank 101 overflows from the top and flows into the water collecting tank 7.
The multistage adsorption device 102 comprises two fluidized bed adsorption columns 8 and a fixed bed adsorption column 9, the top of the fluidized bed adsorption column a801 is communicated with the bottom of the fluidized bed adsorption column B802 through a pipeline, the top of the fluidized bed adsorption column B802 is communicated with the top of the fixed bed adsorption column 9, the bottom of the fluidized bed adsorption column a801 is communicated with the water collecting tank 7 through a water inlet tank 10, the desulfurization wastewater in the water collecting tank 7 enters the fluidized bed adsorption column a801 through the water inlet tank 10, the bottom of the water inlet tank 10 is communicated with a water inlet pump 11, a water outlet port of the water inlet pump 11 is communicated with the bottom of the fluidized bed adsorption column a81, the desulfurization wastewater treated by the clarification tank 101 enters each adsorption column through the water inlet tank 10 under the action of the water inlet pump 11, the desulfurization wastewater flows out from a water outlet 901 positioned at the bottom of the fixed bed adsorption column 902 after adsorption purification, and a water outlet valve for. The bottoms of the fluidized bed adsorption column A801 and the fluidized bed adsorption column B802 are respectively provided with a microporous aeration head 12, and the microporous aeration head 12 is communicated with an air outlet of the blast aerator 13 through a pipeline.
Specifically, the inclined plates 3 are made of PVC plates with good corrosion resistance and light weight, the surfaces of the inclined plates 3 are all installed at an angle of 60 degrees with the horizontal plane and are arranged in a row of arrays, the distance between each inclined plate 3 is 100mm, the electrode plates 5 are made of iron plates or aluminum plates, and the area of each electrode plate 5 is one third of that of each inclined plate 3.
Specifically, the blast aeration machine 13 adopts a low-noise three-blade fan, the microporous aeration head 12 is a disc type microporous aeration head, and is fixed at the bottom end of the fluidized bed adsorption column 8 to form an aeration system with the blast aeration machine 13, and the blast aeration machine 13 uses pressure and wind power to introduce air into the fluidized bed adsorption column 8 through the microporous aeration head 12 to form bubbles to move upwards to form a fluidized state with desulfurization wastewater and an adsorbent, so that the adsorption efficiency is improved.
Specifically, the top of the fluidized bed adsorption column A801 is provided with a feed inlet a18011 and feed valve b for controlling opening and closing thereof18012 the bottom of the adsorption column A801 of the fluidized bed is provided with a discharge hole c 18013 and discharge valve d for controlling opening and closing thereof 18014, a perforated plate e is vertically arranged in the fluidized bed adsorption column A801 18015, for directing the fluidization direction. The top of the fluidized bed adsorption column B802 is provided with a feed inlet a28021 and a feed valve b for controlling the opening and closing thereof28022 the bottom of the fluidized bed column B802 is provided with a discharge hole c 28023 and discharge valve d for controlling opening and closing thereof28024A vertically-arranged porous plate e is arranged in the fluidized bed adsorption column B802 28025 for directing the fluidization direction. The top of the fixed bed adsorption column 9 is provided with a feed inlet a3903 and control feed inlet a3903 open-close feeding valve b 3904。
The fluidized bed adsorption column 8 and the fixed bed adsorption column 9 are respectively filled with an adsorbent, the adsorbent can be selected from granular activated carbon or iron carbon filler and the like, and the adsorbent can be taken out through each discharge port and a discharge valve after being adsorbed and saturated, and new adsorbent is supplemented through each feed port and a feed valve, so that the adsorption efficiency is ensured.
In a more specific embodiment, a water inlet regulating valve 14 and a water inlet flow meter 15 are arranged between the water inlet pump 11 and the fluidized bed adsorption column a801, and are used for regulating the flow rate of the desulfurization wastewater flowing into the multistage adsorption device 102, so as to control the adsorption treatment process and rate of the desulfurization wastewater.
In a more specific embodiment, an air intake regulating valve 16 and an air intake flow meter 17 are arranged between the blast aerator 13 and the microporous aerator 12, and are used for regulating the air flow rate introduced into the fluidized bed adsorption column A801 and the fluidized bed adsorption column 802 by the blast aerator 13 through the microporous aerator 12 to ensure the treatment effect.
The utility model discloses a clarification tank 101 adopts swash plate 3 and plate electrode 5 to combine to form the mode of electric flocculation effect, utilizes the ability of hastening the shallow pond theory and flocculating constituent entrapment fine particles to combine together, reaches the effect that improves water quality of water and effectively reduce suspended solid concentration and fluorine ion concentration. The multistage adsorption device 102 combines the fluidized bed adsorption column 8 and the fixed bed adsorption column 9, and air is introduced into the fluidized bed adsorption column 8 through the blast aeration machine 13 and the microporous aeration head 12 to form upward-moving micro bubbles, so that the desulfurization wastewater, the adsorbent and the bubbles form a fluidized state, and COD is removed while heavy metals are removed.
The above embodiments are merely illustrative of the technical solutions of the present invention and not restrictive, and although the present invention is described in detail with reference to the embodiments, those skilled in the art should understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a desulfurization waste water multi-stage treatment system which characterized in that: the device comprises a clarification tank and a multi-stage adsorption device, wherein a water inlet is formed in the edge of the clarification tank, at least one row of inclined plates are arranged in the clarification tank, electrode plates communicated with a voltage-stabilizing direct-current power supply are fixed on the inclined plates, a mud valve is arranged at the bottom of the clarification tank, and the top of the clarification tank is communicated with a water collecting tank; the multistage adsorption device comprises at least one fluidized bed adsorption column and at least one fixed bed adsorption column, the fluidized bed adsorption column and the fixed bed adsorption column are communicated, the bottom of the fluidized bed adsorption column is communicated with the water collecting tank through a water inlet tank, a microporous aeration head is arranged at the bottom of the fluidized bed adsorption column, the microporous aeration head is communicated with an air outlet of a blast aerator, and a water outlet is arranged at the bottom of the fixed bed adsorption column.
2. The desulfurization wastewater multi-stage treatment system of claim 1, wherein: the inclined plate is a PVC plate, and a clamping groove for mounting the electrode plate is formed in the inclined plate.
3. The desulfurization wastewater multi-stage treatment system of claim 1, wherein: the inclined plate surface and the horizontal plane form an included angle of 60 degrees.
4. The desulfurization wastewater multi-stage treatment system of claim 1, wherein: and a water inlet pump communicated with the water inlet tank and the fluidized bed adsorption column is arranged between the water inlet tank and the fluidized bed adsorption column.
5. The desulfurization wastewater multi-stage treatment system of claim 4, wherein: and a water inlet regulating valve and a water inlet flow meter are sequentially connected between the water inlet pump and the fluidized bed adsorption column.
6. The desulfurization wastewater multi-stage treatment system of claim 1, wherein: the top of fluidized bed adsorption column is equipped with the feed inlet and is used for controlling the feed inlet feed valve, the bottom of fluidized bed adsorption column is equipped with the discharge gate and is used for controlling the ejection of compact discharge valve.
7. The desulfurization wastewater multi-stage treatment system of claim 1, wherein: and an air inlet flow meter and an air inlet adjusting valve are sequentially connected between the microporous aeration head and the blast aeration machine.
8. The desulfurization wastewater multi-stage treatment system of claim 1, wherein: and the top of the fixed bed adsorption column is provided with a feed inlet and a feed valve for controlling feeding.
9. The desulfurization wastewater multi-stage treatment system of claim 1, wherein: and a porous plate is arranged in the fluidized bed adsorption column.
10. The desulfurization wastewater multi-stage treatment system of claim 1, wherein: and the fluidized bed adsorption column and the fixed bed adsorption column are filled with adsorbents.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020221013.2U CN211813893U (en) | 2020-02-27 | 2020-02-27 | Desulfurization waste water multi-stage treatment system |
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| CN202020221013.2U CN211813893U (en) | 2020-02-27 | 2020-02-27 | Desulfurization waste water multi-stage treatment system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113666524A (en) * | 2021-09-03 | 2021-11-19 | 天津市政工程设计研究总院有限公司 | Two-phase adsorption tank for activated coke adsorption process |
| CN114225480A (en) * | 2021-11-09 | 2022-03-25 | 合肥中盛水务发展有限公司 | Self-cleaning decarbonization efficient sedimentation tank system |
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2020
- 2020-02-27 CN CN202020221013.2U patent/CN211813893U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113666524A (en) * | 2021-09-03 | 2021-11-19 | 天津市政工程设计研究总院有限公司 | Two-phase adsorption tank for activated coke adsorption process |
| CN113666524B (en) * | 2021-09-03 | 2022-12-09 | 天津市政工程设计研究总院有限公司 | Two-phase adsorption tank for activated coke adsorption process |
| CN114225480A (en) * | 2021-11-09 | 2022-03-25 | 合肥中盛水务发展有限公司 | Self-cleaning decarbonization efficient sedimentation tank system |
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