CN203474554U - Wet flue gas desulfurized waste water treatment device - Google Patents
Wet flue gas desulfurized waste water treatment device Download PDFInfo
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- CN203474554U CN203474554U CN201320448604.3U CN201320448604U CN203474554U CN 203474554 U CN203474554 U CN 203474554U CN 201320448604 U CN201320448604 U CN 201320448604U CN 203474554 U CN203474554 U CN 203474554U
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Abstract
The utility model discloses a wet flue gas desulfurized waste water treatment device which comprises a primary treatment mechanism for neutralizing, settling and clarifying discharged waste water, and a deep treatment mechanism for deeply treating the waste water treated by the primary treatment mechanism, wherein an inlet of the primary treatment mechanism is connected with a waste water outlet of a desulfurization device; a water outlet of the primary treatment mechanism is connected with a water inlet of the deep treatment mechanism; a sludge discharging hole of the primary treatment mechanism is communicated with a sludge collection mechanism and also is communicated with the water inlet of the primary treatment mechanism through a first backflow pipeline; a water outlet of the deep treatment mechanism is communicated with an external environment and also is communicated with the water inlet of the primary treatment mechanism through a second backflow pipeline. The wet flue gas desulfurization waste water treatment device is simple in structure, can be used for fully treating the waste water in a desulfurization process to ensure the standard discharge of the waste water, and is suitable for treating various wet flue gas desulfurized waste water.
Description
Technical field
The utility model belongs to field of waste water treatment, specifically a kind of wet flue gas desulfurization waste water treatment unit.
Background technology
Wet process of FGD is widely used because its desulfuration efficiency is high, for example, a flue gas desulfurization (FGD) unit of the prior art, adopts advanced and mature Wet Limestone-gypsum method flue gas desulfurization technique, under BMCR operating mode, carry out flue gas desulfurization, desulfuration efficiency can reach 95%.Yet in sweetening process, can produce a large amount of waste water, in these waste water, be rich in a large amount of heavy metal elements and chlorion, one side meeting accelerated corrosion sweetener, can affect the quality of gypsum on the other hand, reduce the effect of desulfurization, therefore need to discharge a certain amount of waste water.And owing to containing above-mentioned heavy metal ion and chlorion in waste water, if therefore directly discharge is very large to environmental hazard, therefore after need to processing waste water, could discharge, and the processing that departs from the waste water of technique for wet flue gas in existing technology is not very ripe, some is directly discharged in environment, the existing environment of severe contamination.
Utility model content
In order to solve the above problems, the utility model provides a kind of wet flue gas desulfurization waste water treatment unit, and the waste water that can fully produce desulfurization is processed, and reduces various ion contents in waste water, the pH value that regulates waste water, makes the discharge of waste water meet state specified standards.
For achieving the above object, the technical scheme that the utility model adopts is as follows:
A wet flue gas desulfurization waste water treatment unit, it comprises:
For the waste water giving off is neutralized, sedimentation, the primary treatment mechanism of clarification, and the advanced treatment mechanism that carries out advanced treatment for the waste water after primary treatment mechanism is processed, the entrance of described primary treatment mechanism is for connecting the wastewater effluent mouth of desulfurizer, the water outlet of primary treatment mechanism connects the water inlet of advanced treatment mechanism, the mud discharging mouth of described primary treatment mechanism is communicated with mud collecting mechanism, also by the first return line, be communicated with the water inlet of self simultaneously, the water outlet of described advanced treatment mechanism is used for being communicated with external environment, also by the second return line, be communicated with the water inlet of primary treatment mechanism simultaneously.
As to restriction of the present utility model: described primary treatment mechanism comprise for regulate waste water ph and setter, in described, be communicated with for the metal ion of waste water being converted to the reactor of water insoluble material with the water outlet of setter, the water outlet of described reactor is communicated with for the flocculator that is free settling material by the various water insoluble Substance Transformations of waste water, and the water outlet of described flocculator is communicated with for the solid of waste water is carried out to separated settler with liquid.
As another kind of the present utility model is limited:
Described mud collecting mechanism is plate-and-frame filter press, and the entrance of described plate-and-frame filter press is communicated with the mud discharging mouth of settler, and outlet is communicated with external environment, and the mud discharging mouth of settler passes through in the first reflux line connection and the water inlet of setter.
Described advanced treatment mechanism comprises for regulating the intermediate regulations device of waste water ph, the water inlet of described intermediate regulations device connects the water outlet of settler, the water outlet of intermediate regulations device is communicated with the water inlet of the more medium filter for waste water is filtered, the water outlet of described more medium filter is used for and external environment connect by water outlet device, and the water outlet of water outlet device also passes through in the second reflux line connection and the water inlet of setter simultaneously.
The utility model also comprises for by wastewater collection waste water collector together, described waste water collector be located at sweetener water outlet and in and between the water inlet of setter.
As the third limits again, the utility model also comprises the Controlling System for wastewater treatment is controlled, and described Controlling System comprises:
Main control unit as control center;
For detection of the information acquisition unit of waste water information in each step, the signal output part of described information acquisition unit connects the signal input part of main control unit;
By self moving for waste water being carried out to the actuator unit of respective handling, the signal input part of described actuator unit connects the control signal output terminal of main control unit.
The utility model also has a kind of restriction, and described information acquisition unit comprises:
For gathering the ultrasonic level gage of waste water liquid level in waste water collector, the signal output part of described ultrasonic level gage connects the liquid level acquired signal input terminus of main control unit;
For a pH value on-line detector of waste water ph in Real-Time Monitoring and setter, the signal output part of a described pH value on-line detector connects a pH acquired signal input terminus of main control unit;
For the 2nd pH value on-line detector of waste water ph in Real-Time Monitoring intermediate regulations device, the signal output part of described the 2nd pH value on-line detector connects the 2nd pH value acquired signal input terminus of main control unit;
For detecting in real time the dirty degree on-line detector of waste water dirt content in hydrophone, the signal output part of described dirty degree on-line detector connects the dirty degree acquired signal input terminus of main control unit.
As the restriction to above-mentioned actuator unit, described actuator unit comprises:
For waste water pump is got to the desulfurization wastewater lift pump in waste water collector, the waste water lifting control signal output terminal of described main control unit connects desulfurization wastewater lift pump;
Be located at the electronic switch of water outlet device water outlet and the second reflux line interface, the control signal output terminal connecting electronic switch of described main control unit.
Owing to having adopted above technical scheme, the utility model can reach following technique effect:
(1) the utility model is provided with primary treatment mechanism and advanced treatment mechanism, can carry out successively primary treatment and advanced treatment to the waste water producing in sweetening process, wastewater treatment becomes to meet the waste water of emission standard the most at last, make waste water can safety dumping in external environment, avoid the corrosion of waste water to sweetener simultaneously;
(2) the utility model is also provided with Controlling System, can control the amount that waste water adds materials in treating processes, when guaranteeing waste water to be carried out to fully processing, the amount that guarantees the material of interpolation is best, when guaranteeing the material in waste water to process, save the material adding, guarantee not introduce unnecessary ion simultaneously.
In sum, the utility model is simple in structure, can fully process the waste water in sweetening process, guarantees the discharge of waste water.
The utility model is applicable to the wastewater treatment of various wet process of FGD.
Accompanying drawing explanation
Fig. 1 is the functional block diagram of the utility model embodiment;
Fig. 2 is the functional block diagram of Controlling System in the utility model embodiment.
In figure: 1-waste water collector, 2-in and setter, 3-reactor, 4-flocculator, 5-settler, 6-plate-and-frame filter press, 7-intermediate regulations device, 8-multimedium is crossed strainer, 9-water outlet device, the 10-the first reflux line, the 11-the second reflux line.
Embodiment
a kind of wet flue gas desulfurization waste water treatment unit of embodiment
The present embodiment provides a kind of wet flue gas desulfurization waste water treatment unit, and with reference to figure 1, it comprises:
(1) waste water collector 1, for collecting waste water from sweetener.
(2) primary treatment mechanism, for neutralizing the waste water giving off, the processing such as sedimentation, clarification.
Primary treatment mechanism in the present embodiment comprise for regulate waste water ph and setter 2, in described, be communicated with the water outlet of waste water collector 1 with the water inlet of setter 2, in and the water outlet of setter 2 be communicated with for the metal ion of waste water being converted to the reactor 3 of water insoluble material, the water outlet of described reactor 3 is communicated with for the flocculator 4 that is free settling material by the various water insoluble Substance Transformations of waste water, the water outlet of described flocculator 4 is communicated with for the solid of waste water is carried out to separated settler 5 with liquid, the mud discharging mouth of described settler 5 is communicated with for assembling the plate-and-frame filter press 6 of mud, and for providing precipitation required nucleus to wastewater treatment next time, the mud discharging mouth of settler 5 also passes through in the first reflux line 10 connections and setter 2.
(3) advanced treatment mechanism, carries out advanced treatment for the waste water after primary treatment mechanism is processed.
Advanced treatment mechanism in the present embodiment comprises for regulating the intermediate regulations device 7 of waste water ph, the water inlet of described intermediate regulations device 7 connects the water outlet of settler 5, the water outlet of intermediate regulations device 7 is communicated with the water inlet of the more medium filter 8 for waste water is filtered, the water outlet of described more medium filter 8 is by water outlet device 9 and external environment connect, and the water outlet of water outlet device 9 also passes through in the second reflux line 11 connections and the water inlet of setter 2 simultaneously.
(4) Controlling System, for controlling wastewater treatment.
Described Controlling System as shown in Figure 2, comprising:
1. main control unit, as control center.The present embodiment adopts PLC Controlling System as main control unit, and it can be controlled above-mentioned each equipment.
2. information acquisition unit, for detection of waste water information in each step, comprising:
Ultrasonic level gage, it is located in waste water collector 1, for the interior waste water liquid level of Real-time Collection waste water collector 1, and the liquid level information detecting is real-time transmitted to the PLC Controlling System being connected with its signal output part;
The one pH value on-line detector, in being located at and in setter 2, for Real-Time Monitoring and the interior waste water ph of setter 2, and is real-time transmitted to the information detecting the PLC Controlling System being connected with its signal output part;
The 2nd pH value on-line detector, is located in intermediate regulations device 7, for Real-Time Monitoring intermediate regulations device 7 interior waste water ph, and the information detecting is real-time transmitted to the PLC Controlling System being connected with its signal output part;
Dirt degree on-line detector, is located in water outlet device 9, for detecting in real time the interior waste water dirt of hydrophone 9 content, and the information detecting is real-time transmitted to the PLC control unit being connected with its signal output part.
3. actuator unit, moves for waste water is processed accordingly by self.
In the present embodiment, actuator unit comprises:
Desulfurization wastewater lift pump, is located in waste water collector 1, and for getting waste water to waste water collector 1 from sweetener pump, the liquid level that PLC Controlling System detects according to ultrasonic level gage, automatically controls the running of desulfurization wastewater lift pump or shut down;
Electronic switch, is located at water outlet device 9 water outlets and the second reflux line 11 interfaces, and the information automatic control electronic switch that PLC Controlling System detects according to dirty degree on-line detector is opened or closed, and then controls the flow direction of waste water.
The specific works principle of the present embodiment: the desulfurization wastewater lift pump in waste water collector 1 under the control of main control unit PLC from sweetener pump get waste water, the liquid level of Ultrasonic Level Measurement Device Real-Time Monitoring waste water collector 1 interior waste water, and send the information detecting to PLC Controlling System, waste water height in waste water collector 1 reaches the benchmark value of setting in PLC Controlling System, PLC Controlling System is controlled desulfurization wastewater lift pump and is shut down, and in order to prevent that waste water is in the interior precipitation of waste water collector 1, the present embodiment is also provided with agitator in waste water collector 1, waste water after waste water collector 1 flows out, enter into and setter 2 in, and in and setter 2 in be provided with a pH value on-line detector, in can real time on-line monitoring and the pH value of setter 2 interior waste water, staff adds milk of lime according to the pH value detecting to waste water, first the pH value of waste water is adjusted between 8.8～9.2, can make like this part acid ion and the neutralization of halogen family ion is corresponding inorganic salt, most metal ions reaction is generated to the precipitation of hydroxide that is insoluble in water simultaneously, then waste water by and in setter 2 inflow reactors 3, staff is by being added with machine sulfide TMT15 in reactor 3, further heavy-metal ion removal especially strengthens removing the effect of cadmium ion and mercury ion, waste water is flowed in flocculator 4 by reactor 3 afterwards, the oxyhydroxide and the metal sulfide grain that due to the waste water flowing out in reactor 3, form are very tiny, be difficult to settle down, so staff adds FeClSO4 in flocculator 4 and PAM makes tiny particle form flocs unit, waste water is flowed in settler 5 and is carried out solid-liquid separation by flocculator 4 afterwards, solid matter after separation forms thickened sludge under settler 5 bottom weight inspissateds, thickened sludge is discharged by plate-and-frame filter press 6, liquid flows in middle tone and device 7, during small portion mud is back to by the first reflux line 10 simultaneously and in setter 2.And enter the liquid in intermediate regulations device 7, can detect in real time its pH value by the 2nd pH value on-line detector, staff adds hydrochloric acid according to the pH value detecting to waste water, again regulate between pH value to 6～9 of waste water, the waste water of adjusting after pH value flows in more medium filter 8, by the fine particle in waste water, suspended substance, the impurity filterings such as colloid, within last waste water flows into water outlet device 9, and in water outlet device 9, be provided with dirty degree on-line detector, can detect in real time the dirty degree of hydrophone 9 interior waste water, and the numerical value detecting is real-time transmitted to PLC Controlling System, if the dirty degree of waste water lower than in PLC Controlling System, store discharge benchmark value time, PLC Controlling System is controlled water outlet device 9 and is discharged, if and the dirty degree of waste water higher than in PLC Controlling System, store discharge benchmark value time, PLC Controlling System is controlled electronic switch and is opened, make return of waste water in and setter 2 in again process.
Claims (8)
1. a wet flue gas desulfurization waste water treatment unit, it is characterized in that: it comprises for the waste water giving off is neutralized, the primary treatment mechanism of sedimentation, clarification, and the advanced treatment mechanism that carries out advanced treatment for the waste water after primary treatment mechanism is processed;
The entrance of described primary treatment mechanism is for connecting the wastewater effluent mouth of desulfurizer, the water outlet of primary treatment mechanism connects the water inlet of advanced treatment mechanism, the mud discharging mouth of described primary treatment mechanism is communicated with mud collecting mechanism, also by the first return line, be communicated with the water inlet of self simultaneously, the water outlet of described advanced treatment mechanism is used for being communicated with external environment, also by the second return line, is communicated with the water inlet of primary treatment mechanism simultaneously.
2. wet flue gas desulfurization waste water treatment unit according to claim 1, it is characterized in that: described primary treatment mechanism comprise for regulate waste water ph and setter, in described, be communicated with for the metal ion of waste water being converted to the reactor of water insoluble material with the water outlet of setter, the water outlet of described reactor is communicated with for the flocculator that is free settling material by the various water insoluble Substance Transformations of waste water, and the water outlet of described flocculator is communicated with for the solid of waste water is carried out to separated settler with liquid.
3. wet flue gas desulfurization waste water treatment unit according to claim 1, it is characterized in that: described mud collecting mechanism is plate-and-frame filter press, the entrance of described plate-and-frame filter press is communicated with the mud discharging mouth of settler, outlet is communicated with external environment, and the mud discharging mouth of settler passes through in the first reflux line connection and the water inlet of setter.
4. wet flue gas desulfurization waste water treatment unit according to claim 1, it is characterized in that: described advanced treatment mechanism comprises for regulating the intermediate regulations device of waste water ph, the water inlet of described intermediate regulations device connects the water outlet of settler, the water outlet of intermediate regulations device is communicated with the water inlet of the more medium filter for waste water is filtered, the water outlet of described more medium filter is used for and external environment connect by water outlet device, and the water outlet of water outlet device also passes through in the second reflux line connection and the water inlet of setter simultaneously.
5. according to the wet flue gas desulfurization waste water treatment unit described in any one in claim 1-4, it is characterized in that: it also comprises for by wastewater collection waste water collector together, described waste water collector be located at sweetener water outlet and in and between the water inlet of setter.
6. wet flue gas desulfurization waste water treatment unit according to claim 5, is characterized in that: it also comprises the Controlling System for wastewater treatment is controlled, and described Controlling System comprises:
Main control unit as control center;
For detection of the information acquisition unit of waste water information in each step, the signal output part of described information acquisition unit connects the signal input part of main control unit;
By self moving for waste water being carried out to the actuator unit of respective handling, the signal input part of described actuator unit connects the control signal output terminal of main control unit.
7. wet flue gas desulfurization waste water treatment unit according to claim 6, is characterized in that described information acquisition unit comprises:
For gathering the ultrasonic level gage of waste water liquid level in waste water collector, the signal output part of described ultrasonic level gage connects the liquid level acquired signal input terminus of main control unit;
For a pH value on-line detector of waste water ph in Real-Time Monitoring and setter, the signal output part of a described pH value on-line detector connects a pH acquired signal input terminus of main control unit;
For the 2nd pH value on-line detector of waste water ph in Real-Time Monitoring intermediate regulations device, the signal output part of described the 2nd pH value on-line detector connects the 2nd pH value acquired signal input terminus of main control unit;
For detecting in real time the dirty degree on-line detector of waste water dirt content in hydrophone, the signal output part of described dirty degree on-line detector connects the dirty degree acquired signal input terminus of main control unit.
8. according to the wet flue gas desulfurization waste water treatment unit described in claim 6 or 7, it is characterized in that: described actuator unit comprises:
For waste water pump is got to the desulfurization wastewater lift pump in waste water collector, the waste water lifting control signal output terminal of described main control unit connects desulfurization wastewater lift pump;
Be located at the electronic switch of water outlet device water outlet and the second reflux line interface, the control signal output terminal connecting electronic switch of described main control unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320448604.3U CN203474554U (en) | 2013-07-26 | 2013-07-26 | Wet flue gas desulfurized waste water treatment device |
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| CN201320448604.3U CN203474554U (en) | 2013-07-26 | 2013-07-26 | Wet flue gas desulfurized waste water treatment device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104028097A (en) * | 2014-06-20 | 2014-09-10 | 北京中冶隆生环保科技发展有限公司 | Process technology for turbulent wet-process flue gas desulfurization and desulfurization wastewater treatment |
| CN109809590A (en) * | 2017-11-22 | 2019-05-28 | 中国石油天然气集团公司 | A kind of flue gas desulfurization wastewater treatment system |
| CN111099769A (en) * | 2019-12-27 | 2020-05-05 | 淮阴师范学院 | Sewage purification cyclic utilization system of steam power plant |
| CN114275925A (en) * | 2021-11-29 | 2022-04-05 | 武汉天空蓝环保科技有限公司 | Desulfurization wastewater treatment system |
-
2013
- 2013-07-26 CN CN201320448604.3U patent/CN203474554U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104028097A (en) * | 2014-06-20 | 2014-09-10 | 北京中冶隆生环保科技发展有限公司 | Process technology for turbulent wet-process flue gas desulfurization and desulfurization wastewater treatment |
| CN109809590A (en) * | 2017-11-22 | 2019-05-28 | 中国石油天然气集团公司 | A kind of flue gas desulfurization wastewater treatment system |
| CN109809590B (en) * | 2017-11-22 | 2022-11-04 | 中国石油天然气集团公司 | Flue gas desulfurization effluent disposal system |
| CN111099769A (en) * | 2019-12-27 | 2020-05-05 | 淮阴师范学院 | Sewage purification cyclic utilization system of steam power plant |
| CN114275925A (en) * | 2021-11-29 | 2022-04-05 | 武汉天空蓝环保科技有限公司 | Desulfurization wastewater treatment system |
| CN114275925B (en) * | 2021-11-29 | 2023-11-07 | 武汉天空蓝环保科技有限公司 | Desulfurization wastewater treatment system |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: HEBEI OME ENVIRONMENT ENGINEERING CO.,LTD. Assignor: Yuan Feng Contract record no.: 2014130000047 Denomination of utility model: Wet flue gas desulfurized waste water treatment device Granted publication date: 20140312 License type: Exclusive License Record date: 20140404 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20160525 Address after: 050000, pay 1, Da Jie street, Qiaoxi District, Hebei, Shijiazhuang Patentee after: HEBEI OME ENVIRONMENT ENGINEERING CO.,LTD. Address before: 051000 Diamond Plaza, 466 East Zhongshan Road, Hebei, Shijiazhuang, B-911 Patentee before: Yuan Feng |
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| CX01 | Expiry of patent term |
Granted publication date: 20140312 |
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| CX01 | Expiry of patent term |