CN207862107U - A kind of system of boiler acid washing wastewater efficient stable treatment for reuse - Google Patents
A kind of system of boiler acid washing wastewater efficient stable treatment for reuse Download PDFInfo
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- CN207862107U CN207862107U CN201820071311.0U CN201820071311U CN207862107U CN 207862107 U CN207862107 U CN 207862107U CN 201820071311 U CN201820071311 U CN 201820071311U CN 207862107 U CN207862107 U CN 207862107U
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Abstract
The utility model discloses a kind of systems of boiler acid washing wastewater efficient stable treatment for reuse, including wastewater collection pond, intermediate pool, aerator, the first chemicals dosing plant, magnetic kind throwing device, flocculation reactor, band magnetic field clarifier, oxidant throwing device, filter, the second chemicals dosing plant, clear water reserviors, DTRO devices and Boiler water Feeding System system, sinking speed is very fast in the system clarifying basin, clarifying basin is small, floor space is small, and it is relatively low to the processing cost of Boiler Chemical waste water, while treated water meets discharge and reuse standard.
Description
Technical field
The utility model belongs to technical field of waste water processing, is related to a kind of boiler acid washing wastewater efficient stable treatment for reuse
System.
Background technology
Boiler Chemical waste water sense organ is poor, difficult, and the traditional processing method of thermal power plant is that Boiler Chemical gives up
Water is discharged into Hui Chang with buck blending by a certain percentage, but that there are dilution ratios is big, processing time is long, easily causes underground water pollution etc.
Disadvantage, and most of power plant is all made of Dry-ash System at present, without ash field, this method is not applicable.It therefore, at present need to be to boiler chemical
Qualified discharge or reuse after cleaning wastewater treatment.Boiler Chemical waste water overstandard factor mainly has COD, coloration, turbidity.
Boiler Chemical chroma in waste water is mainly due to containing a large amount of Fe in waste water3+And Fe2+, can be used plus alkali is given birth to
It is removed at precipitation.Except the common technique of turbidity is coagulation clarification, and traditional coagulation clarification pond sinking speed is slow, when hydraulic retention
Between it is long, clarifying basin volume is big, takes up a large area, and cost is high.The dense height of Boiler Chemical waste water COD is very high, using advanced oxygen
Chemical industry skill there are of high cost, after oxidation water outlet be difficult to meet discharge or reuse standard, also need that other techniques is combined to be discharged oxidation
It is further processed.
Utility model content
It is efficient to provide a kind of boiler acid washing wastewater for the shortcomings that the purpose of the utility model is to overcome the above-mentioned prior arts
The system for stablizing treatment for reuse, sinking speed is very fast in clarifying basin in the system, and clarifying basin is small, and floor space is small, and
It is relatively low to the processing cost of Boiler Chemical waste water, while treated water meets discharge and reuse standard.
In order to achieve the above objectives, the system of boiler acid washing wastewater efficient stable treatment for reuse described in the utility model includes
Wastewater collection pond, intermediate pool, aerator, the first chemicals dosing plant, magnetic kind throwing device, flocculation reactor, band magnetic field are clarified
Device, oxidant throwing device, filter, the second chemicals dosing plant, clear water reserviors, DTRO devices and Boiler water Feeding System system；
The outlet of wastewater collection pond, the outlet of aerator, the outlet of the first chemicals dosing plant and magnetic kind throwing device go out
Mouth is connected with the entrance of flocculation reactor, and the outlet of flocculation reactor is connected through intermediate pool with the entrance with magnetic field clarifier
It is logical, the outlet of the top exit with magnetic field clarifier and oxidant throwing device and being connected for filter, the filtrate of filter
Outlet and the outlet of the second chemicals dosing plant and the entrance of clear water reserviors are connected, and the outlet of clear water reserviors is connected with the entrance of DTRO devices
Logical, the outlet of DTRO devices is connected with the entrance of Boiler water Feeding System system.
First chemicals dosing plant and the second chemicals dosing plant are respectively sodium hydroxide chemicals dosing plant and sulfuric acid chemicals dosing plant.
The first elevator pump of outlet of wastewater collection pond is connected with the entrance of flocculation reactor；
The second elevator pump of outlet of flocculation reactor is connected with the entrance with magnetic field clarifier；
The outlet of intermediate pool is connected through third elevator pump with the entrance of filter.
The outlet of clear water reserviors is connected through high-pressure pump with the entrance of DTRO devices.
Further include magnetic kind separator, wherein the outlet at bottom with magnetic field clarifier is connected with the entrance of magnetic kind separator,
The magnetic kind outlet of magnetic kind separator is connected with the entrance of magnetic kind throwing device.
It is connected by sludge sludge pump between outlet at bottom with magnetic field clarifier and the entrance of magnetic kind separator.
Further include back washing device, wherein the entrance of back washing device is connected with the outlet of clear water reserviors, the outlet of back washing device
It is connected with the backwash water inlet of filter, the backwash water out of filter is connected with the entrance of flocculation reactor.
Further include reducing agent throwing device and scale inhibitor feeding device, the outlet of reducing agent throwing device and scale inhibitor dosing
The outlet of device is connected with the entrance of DTRO devices.
The utility model has the advantages that：
The system of boiler acid washing wastewater efficient stable treatment for reuse described in the utility model passes through magnetic when specific operation
Kind is to Fe (OH)3Reddish-brown precipitation is magnetized, then in the clarifier of band magnetic field, makes Fe (OH) under the influence of a magnetic field3Bronzing
It is deposited on the bottom with magnetic field clarifier, the sinking speed to comparatively fast precipitate, clarifying basin is small, and floor space is small,
Processing cost is relatively low.In addition, the only surplus COD pollutions in boiler acid washing wastewater after the clarifier processing of band magnetic field in the utility model
Then object is handled through DTRO devices again, so that the water that makes that treated meets discharge and reuse standard, effective solution fire
The problem of boiler of power plant chemical rinsing waste water processing, can reuse 90% Boiler Chemical waste water, and system operation is flexible,
Start soon, operating cost is low, high degree of automation, easy to operate, is suitable for any area and uses.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Wherein, 1 be wastewater collection pond, 2 be the first elevator pump, 3 be flocculation reactor, 4 be aerator, 5 be first plus
Medicine device, 6 be magnetic kind throwing device, 7 be the second elevator pump, 8 be band magnetic field clarifier, 9 be sludge sludge pump, 10 be magnetic kind point
It is intermediate pool from device, 11,12 be third elevator pump, 13 be oxidant throwing device, 14 be filter, 15 is clear water reserviors, 16
For back washing device, 17 be the second chemicals dosing plant, 18 be high-pressure pump, 19 be reducing agent throwing device, 20 be scale inhibitor feeding device,
21 it is DTRO devices, 22 is Boiler water Feeding System system.
Specific implementation mode
The utility model is described in further detail below in conjunction with the accompanying drawings：
With reference to figure 1, the system of boiler acid washing wastewater efficient stable treatment for reuse described in the utility model includes that waste water is received
Collect pond 1, intermediate pool 11, aerator 4, the first chemicals dosing plant 5, magnetic kind throwing device 6, flocculation reactor 3, the clarification of band magnetic field
Device 8, oxidant throwing device 13, filter 14, the second chemicals dosing plant 17, clear water reserviors 15, DTRO devices 21 and boiler feedwater
Processing system 22；The outlet of wastewater collection pond 1, the outlet of aerator 4, the outlet of the first chemicals dosing plant 5 and magnetic kind add dress
It sets 6 outlet with the entrance of flocculation reactor 3 to be connected, the outlet of flocculation reactor 3 is clarified through intermediate pool 11 with magnetic field
The entrance of device 8 is connected, the phase of the outlet and filter 14 of the top exit with magnetic field clarifier 8 and oxidant throwing device 13
Connection, the outlet of the filtrate (liquid of filter 14 and the second chemicals dosing plant 17 are connected with the entrance of clear water reserviors 15, clear water reserviors 15
Outlet be connected with the entrance of DTRO devices 21, the outlet of DTRO devices 21 and the entrance phase of Boiler water Feeding System system 22
Connection；First chemicals dosing plant 5 and the second chemicals dosing plant 17 are respectively sodium hydroxide chemicals dosing plant and sulfuric acid chemicals dosing plant.
The first elevator pump of outlet 2 of wastewater collection pond 1 is connected with the entrance of flocculation reactor 3；Flocculation reactor 3
Outlet is connected through the second elevator pump 7 with the entrance with magnetic field clarifier 8；The outlet of intermediate pool 11 through third elevator pump 12 with
The entrance of filter 14 is connected；The outlet of clear water reserviors 15 is connected through high-pressure pump 18 with the entrance of DTRO devices 21.
The utility model further includes magnetic kind separator 10, wherein the outlet at bottom with magnetic field clarifier 8 and magnetic kind separator
10 entrance is connected, and the magnetic kind outlet of magnetic kind separator 10 is connected with the entrance of magnetic kind throwing device 6；Band magnetic field clarifier
It is connected by sludge sludge pump 9 between 8 outlet at bottom and the entrance of magnetic kind separator 10.
The utility model further includes back washing device 16, and the wherein entrance of back washing device 16 is connected with the outlet of clear water reserviors 15
Logical, the outlet of back washing device 16 is connected with the backwash water inlet of filter 14, and the backwash water out of filter 14 and flocculation are anti-
The entrance of device 3 is answered to be connected；The utility model further includes reducing agent throwing device 19 and scale inhibitor feeding device 20, and reducing agent is thrown
The outlet of feeder apparatus 19 and the outlet of scale inhibitor feeding device 20 are connected with the entrance of DTRO devices 21.
The specific work process of the utility model is：
The boiler acid washing wastewater that wastewater collection pond 1 exports enters in flocculation reactor 3, the aeration that aerator 4 exports
It enters in flocculation reactor 3, the magnetic kind that magnetic kind throwing device 6 exports enters in flocculation reactor 3, the first chemicals dosing plant 5
The sodium hydroxide of output enters in flocculation reactor 3, by being aerated the Fe in boiler acid washing wastewater2+It is oxidized to Fe3+, then
With sodium hydroxide react and generates Fe (OH)3Reddish-brown precipitation, wherein by sodium hydroxide by the pH value of boiler acid washing wastewater
12.0 or more are adjusted to, then by magnetic kind to Fe (OH)3Reddish-brown precipitation is magnetized, the boiler that flocculation reactor 3 exports
Pickling waste waters enters in band magnetic field clarifier 8, and makes Fe (OH) under the action of magnetic field in band magnetic field clarifier 83Bronzing
It is deposited on the bottom with magnetic field clarifier 8, wherein the only surplus COD in boiler acid washing wastewater after band magnetic field clarifier 8 is handled
Pollutant, the boiler acid washing wastewater exported with 8 top of magnetic field clarifier enter in intermediate pool 11, the pot that intermediate pool 11 exports
Stove pickling waste waters is filtered after being mixed with the oxidant that oxidant throwing device 13 exports by filter 14, is then entered back into
Into clear water reserviors 15, sulfuric acid is added into clear water reserviors 15 by the second chemicals dosing plant 17, makes boiler acid washing wastewater in clear water reserviors 15
PH value be adjusted to 7.0, the boiler acid washing wastewater that clear water reserviors 15 export enters in DTRO devices 21, reducing agent throwing device 19
Output end reducing agent enters in DTRO devices 21, and the antisludging agent that scale inhibitor feeding device 20 exports enters DTRO devices 21
In, the production water that DTRO devices 21 export enters reuse in Boiler water Feeding System system 22；The concentrated water that DTRO devices 21 export
The mainly organic matter of high concentration burns after being then sent to coal yard spray；
Reducing agent is added to prevent film from being aoxidized to the water inlet of DTRO devices 21, adds antisludging agent to inhibit fouling membrane.
Sludge with the discharge of 8 bottom of magnetic field clarifier is sent through sludge sludge pump 9 to magnetic kind separator 10, completes Fe (OH)3
With the separation of magnetic kind, the magnetic kind after separation is recycled in magnetic kind throwing device 6 and reuses, Fe (OH)3It is comprehensive as the raw material of industry
It closes and utilizes.
Backwash periodically is carried out to filter 14 by back washing device 16, the backwash water that filter 14 exports is back to flocculation reaction
In device 3, the auxiliary water ratio of whole system is reduced.
The above is only the citing of the implementation steps of the utility model, it is noted that for the common of the art
For technical staff, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these
Improvement and modification also should be regarded as the scope of protection of the utility model.
Claims (8)
1. a kind of system of boiler acid washing wastewater efficient stable treatment for reuse, which is characterized in that including wastewater collection pond (1), in
Between pond (11), aerator (4), the first chemicals dosing plant (5), magnetic kind throwing device (6), flocculation reactor (3), band magnetic field it is clear
Clear device (8), oxidant throwing device (13), filter (14), the second chemicals dosing plant (17), clear water reserviors (15), DTRO devices
(21) and Boiler water Feeding System system (22)；
The outlet of wastewater collection pond (1), the outlet of aerator (4), the outlet of the first chemicals dosing plant (5) and magnetic kind throwing device
(6) outlet is connected with the entrance of flocculation reactor (3), and the outlet of flocculation reactor (3) is through intermediate pool (11) and with magnetic
The entrance of clarifier (8) is connected, the outlet of top exit with magnetic field clarifier (8) and oxidant throwing device (13) and
Filter (14) are connected, outlet and the clear water reserviors (15) of the filtrate (liquid and the second chemicals dosing plant (17) of filter (14)
Entrance is connected, and the outlet of clear water reserviors (15) is connected with the entrance of DTRO devices (21), the outlet of DTRO devices (21) and pot
The entrance of stove make up water treatment system (22) is connected.
2. the system of boiler acid washing wastewater efficient stable treatment for reuse according to claim 1, which is characterized in that first adds
Medicine device (5) and the second chemicals dosing plant (17) are respectively sodium hydroxide chemicals dosing plant and sulfuric acid chemicals dosing plant.
3. the system of boiler acid washing wastewater efficient stable treatment for reuse according to claim 1, which is characterized in that
The first elevator pump of outlet (2) of wastewater collection pond (1) is connected with the entrance of flocculation reactor (3)；
The second elevator pump of outlet (7) of flocculation reactor (3) is connected with the entrance with magnetic field clarifier (8)；
The outlet of intermediate pool (11) is connected through third elevator pump (12) with the entrance of filter (14).
4. the system of boiler acid washing wastewater efficient stable treatment for reuse according to claim 1, which is characterized in that clear water reserviors
(15) outlet is connected through high-pressure pump (18) with the entrance of DTRO devices (21).
5. the system of boiler acid washing wastewater efficient stable treatment for reuse according to claim 1, which is characterized in that further include
Magnetic kind separator (10), wherein the outlet at bottom with magnetic field clarifier (8) is connected with the entrance of magnetic kind separator (10), magnetic
The magnetic kind outlet of kind separator (10) is connected with the entrance of magnetic kind throwing device (6).
6. the system of boiler acid washing wastewater efficient stable treatment for reuse according to claim 5, which is characterized in that band magnetic field
It is connected by sludge sludge pump (9) between the outlet at bottom of clarifier (8) and the entrance of magnetic kind separator (10).
7. the system of boiler acid washing wastewater efficient stable treatment for reuse according to claim 1, which is characterized in that further include
Back washing device (16), the wherein entrance of back washing device (16) are connected with the outlet of clear water reserviors (15), and back washing device (16) go out
Mouth is connected with the backwash water inlet of filter (14), the entrance of the backwash water out and flocculation reactor (3) of filter (14)
It is connected.
8. the system of boiler acid washing wastewater efficient stable treatment for reuse according to claim 1, which is characterized in that further include
Reducing agent throwing device (19) and scale inhibitor feeding device (20), the outlet of reducing agent throwing device (19) and scale inhibitor dosing dress
The outlet for setting (20) is connected with the entrance of DTRO devices (21).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820071311.0U CN207862107U (en) | 2018-01-16 | 2018-01-16 | A kind of system of boiler acid washing wastewater efficient stable treatment for reuse |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820071311.0U CN207862107U (en) | 2018-01-16 | 2018-01-16 | A kind of system of boiler acid washing wastewater efficient stable treatment for reuse |
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| Publication Number | Publication Date |
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| CN207862107U true CN207862107U (en) | 2018-09-14 |
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| CN201820071311.0U Active CN207862107U (en) | 2018-01-16 | 2018-01-16 | A kind of system of boiler acid washing wastewater efficient stable treatment for reuse |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107963768A (en) * | 2018-01-16 | 2018-04-27 | 西安西热水务环保有限公司 | A kind of system and method for boiler acid washing wastewater efficient stable treatment for reuse |
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2018
- 2018-01-16 CN CN201820071311.0U patent/CN207862107U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107963768A (en) * | 2018-01-16 | 2018-04-27 | 西安西热水务环保有限公司 | A kind of system and method for boiler acid washing wastewater efficient stable treatment for reuse |
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