CN103910445A - Desulfurization wastewater treatment device adopting efficient clarifier - Google Patents
Desulfurization wastewater treatment device adopting efficient clarifier Download PDFInfo
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- CN103910445A CN103910445A CN201210592449.2A CN201210592449A CN103910445A CN 103910445 A CN103910445 A CN 103910445A CN 201210592449 A CN201210592449 A CN 201210592449A CN 103910445 A CN103910445 A CN 103910445A
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Abstract
The invention discloses a desulfurization wastewater treatment device adopting an efficient clarifier. The device comprises a wastewater cyclone, the efficient clarifier, an outlet water tank, a drug adding treatment box, a secondary clarifier and an outlet water pump. The wastewater cyclone is communicated with the efficient clarifier through a pipeline, the overflow port of the efficient clarifier is communicated with the outlet water tank through a pipeline, and a liquid level difference exists between the overflow port of the efficient clarifier and the outlet water tank. The outlet water tank is communicated with the drug adding treatment box through a pipeline, which is provided with the outlet water pump. The water outlet of the drug adding treatment box is communicated with the secondary clarifier. A liquid level difference exists between the water outlet of the drug adding treatment box and the secondary clarifier. And the outlet water tank is internally equipped with an outlet water tank liquid level measurement meter. According to the invention, the absorption tower slurry chloride ion concentration is ensured in a scope of design, and long-term, safe and stable operation of the desulfurization system is guaranteed.
Description
Technical field
The present invention relates to desulfurization wastewater processes and environmental protective chemical industry field, particularly reference and a kind of desulfurizing waste water processing device that adopts high-efficiency clarifier.
Background technology
Wet desulfurizing process is China's maximum sulfur removal technology of application at present, its absorption tower mainly adopts spray column, also have the types such as rotating stream tray scrubber and the packing tower of employing, its absorption process is mainly that the gypsum slurries by spraying certain pH value is fully washed pouring with flue gas and contacted, and removes SO in flue gas to reach
2object.At SO
2the material such as HCL, dust carrying in flue gas in absorption process is together absorbed, dissolve in gypsum slurries, can cause that absorption tower gypsum slurries chlorine ion concentration fast rise, fine particle gathering increase, under nominal situation, control chlorine ion concentration in the slurries of absorption tower as far as possible and, below 20000ppm, mainly consider following factors:
(1) chlorion can cause metallic corrosion and stress corrosion in desulphurization system, has a strong impact on the work-ing life of equipment;
(2) chemical reaction in chlorion decrease uptake tower, changes pH value, reduces (SO
4)
2-clearance, consume Wingdale, muriate has the dissolving of decrease uptake agent, reduce desulfuration efficiency;
(3) chlorion height can cause gypsum dehydration difficulty, and gypsum water content increases, and gypsum is difficult to moulding, affects gypsum qualitt, reduces benefit.
But in absorption tower, chlorion is difficult to control, unique control device is to strengthen the discharge of desulfurization wastewater at present, reduce cl concn content in absorption tower, but at present because the processing power of desulfurization wastewater system is limited, the problem such as the failure rate of wastewater sludge pressure filter equipment is higher, limited normal processing and the discharge of desulfurization wastewater, therefore absorption tower chlorine ion concentration exceed standard operation be common operation exception phenomenon, give desulfurizer safe and stable operation cause very large threat.
Summary of the invention
The object of the invention is to overcome existing desulfurization wastewater treatment system clarification scarce capacity and the higher problem of sludge press filtration equipment failure rate, adopt a kind for the treatment of unit with high-efficiency clarifier, can strengthen the processing power of waste water system, can reduce again the work load of pressure filter equipment, thereby improve the day output of desulfurization wastewater system, fundamentally solved the problems of desulfurizing waste water processing device.
For solving the problems of the technologies described above, the invention provides a kind of desulfurizing waste water processing device that adopts high-efficiency clarifier, this device comprises waste-water vortex device, high-efficiency clarifier, water tank, dosing processing tank, secondary settler and go out water pump, described waste-water vortex device is by pipeline communication high-efficiency clarifier, the overflow port of described high-efficiency clarifier is by pipeline communication water tank, between the overflow port of described high-efficiency clarifier and water tank, there is liquid level difference, described water tank is by pipeline communication dosing processing tank, on pipeline between described water tank and dosing processing tank, be provided with out water pump, the water port of described dosing processing tank is communicated with secondary settler, between the water port of described dosing processing tank and secondary settler, there is liquid level difference, in described water tank, be provided with water tank level gauging instrument.
Further, described high-efficiency clarifier bottom, by pipeline communication absorption tower, is provided with and is communicated with bed mud transferpump on the pipeline between described high-efficiency clarifier bottom and absorption tower.
Again further, in described high-efficiency clarifier, be provided with high-efficiency clarifier mud level meter.
Again further, in described secondary settler, be provided with secondary settler mud level meter.
Again further, on the pipeline between described secondary bottom of clarifier and sludge filter press, be provided with sludge delivery pump.
Again further, on the pipeline of described secondary settler relief outlet, be provided with waste water effluent stream amount meter.
Again further, on the pipeline between described high-efficiency clarifier bottom and absorption tower, be arranged in parallel bed mud transferpump for subsequent use with bed mud transferpump.
Again further, on the pipeline between described water tank and dosing processing tank with water outlet parallel connection of pumps be provided with for subsequent use go out water pump.
Again further, on the pipeline between described secondary bottom of clarifier and sludge filter press, be provided with sludge delivery pump for subsequent use with sludge delivery pump.
Again further, the height that has liquid level difference between the overflow port of described high-efficiency clarifier and water tank is 0.5 ~ 2m, and between the water port of described dosing processing tank and secondary settler, having liquid level difference is 0.5 ~ 1m.
Principle of work:
The gypsum slurries that desulfurization wastewater carries in waste-water vortex device overflow port enters in high-efficiency clarifier its slurries and thin material thing carry out efficient clarification filtration, fine particle is settled down to high-efficiency clarifier bottom, reduce the content of waste water suspension, the free overflow of overflow port that desulfurization wastewater after high-efficiency clarifier filters passes through high-efficiency clarifier with liquid level difference is to water tank, water tank bottom is provided with liquidometer, when liquid level reaches after set(ting)value, Controlling System adds waste water to be sent to dosing tank processing by going out water pump, the free overflow of waste water after treatment in secondary settling pond again clarification filtration after becoming qualified waste water, discharge.
High-efficiency clarifier bottom is provided with the dirty transferpump in the end, inside is provided with mud level meter and to efficient finer tube road, is provided with wastewater flow meter at waste-water vortex device, the wastewater treatment capacity that enters high-efficiency clarifier by the control of wastewater flow meter, monitor the dirty position of high-efficiency clarifier by mud level meter, at the bottom of in the time that dirty position meter reaches design load, dirty transferpump is by the mixed serum pressurization of high-efficiency clarifier bottom, go back to absorption tower by slurry pipe line foldback, can discharge in time the bottom slurries of high-efficiency clarifier, prevent the obstruction of high-efficiency clarifier bottom, be conducive to improve the clarifying effect of high-efficiency clarifier simultaneously, reduce the content of desulfurization wastewater suspended substance.
Secondary settling pond bottom is provided with sludge delivery pump, mud level meter, in the time that mud level meter reaches ceiling value, by sludge delivery pump, mud is delivered to sludge filter press system and carries out pressure-filteration drying, because high-efficiency clarifier clarifying effect is better, waste water solid content after high-efficiency clarifier clarification filtration can significantly reduce, therefore the sludge quantity producing when waste water process secondary settling pond is less, can make the frequency of native system sludge treatment decline to a great extent, overcome the difficult problem that sludge press filtration machine equipment reliability is low, treatment capacity is little, be conducive to the continuous processing and lasting discharge of waste water system.
Bed mud transferpump in native system, go out water pump, sludge delivery pump is provided with stand-by pump, in the time that wherein any pump breaks down, another pump can put into operation immediately.Secondary settling pond relief outlet is provided with under meter, for monitoring quantity discharged every day of waste water.
Advantage of the present invention
1, the present invention can strengthen the processing power of waste water system, can reduce again the work load of pressure filter equipment, thereby improves the day output of desulfurization wastewater system, has fundamentally solved the problems of desulfurizing waste water processing device.
2, in the present invention, high-efficiency clarifier is more more greatly than secondary settling pond on volume, structure is substantially equally unchanged with secondary settler, because of volume larger, therefore well more a lot of than secondary settler clarifying effect, its advantage is the position by reasonably arranging high-efficiency clarifier, in the time that clarifying through the first step, desulfurization wastewater can remove most of gypsum slurries and fine particle wherein, to be conducive to alleviate the processing pressure of upstream device sludge system.
3, the frequency of sludge treatment of the present invention declines to a great extent, and has overcome the difficult problem that sludge press filtration machine equipment reliability is low, treatment capacity is little, is conducive to the continuous processing and lasting discharge of waste water system.
4, the present invention not only wastewater treatment capacity significantly rise, and sludge press filtration system frequency of utilization and manual operation amount decline to a great extent, can realize the continuous operation of daily Waste Water Treatment, assurance absorption tower slurries chlorion, in scope of design, has been guaranteed the long-term safety steady running of desulphurization system.
Accompanying drawing explanation
Fig. 1 is the flowage structure schematic diagram of the desulfurizing waste water processing device of employing high-efficiency clarifier of the present invention.
In figure: 1. high-efficiency clarifier, 2. water tank, 3. dosing processing tank, 4. secondary settler, 5. waste-water vortex device, 6. goes out water pump, for subsequent use go out water pump, 8. sludge delivery pump, 9. sludge delivery pump for subsequent use, 10. bed mud transferpump, 11. bed mud transferpumps for subsequent use, 12. high-efficiency clarifier mud level meters, 13. secondary settler mud level meters, 14. water tank level gauging instrument, 15. waste water effluent stream amount meters, 16. wastewater treatment under meters, 16. absorption towers, 17. sludge filter press.
Embodiment
In order to explain better the present invention, further illustrate main contents of the present invention below in conjunction with specific embodiment, but content of the present invention is not only confined to following examples.
A kind of desulfurizing waste water processing device that adopts high-efficiency clarifier, this device comprises waste-water vortex device 5, high-efficiency clarifier 1, water tank 2, dosing processing tank 3 and secondary settler 4 and go out water pump 6, described waste-water vortex device 5 is by pipeline communication high-efficiency clarifier 1, the overflow port of described high-efficiency clarifier 1 is by pipeline communication water tank 2, between the overflow port of described high-efficiency clarifier 1 and water tank 2, there is liquid level difference, described water tank 2 is by pipeline communication dosing processing tank 3, on pipeline between described water tank 2 and dosing processing tank 3, be provided with out water pump 6, the water port of described dosing processing tank 3 is communicated with secondary settler 4, between the water port of described dosing processing tank 3 and secondary settler 4, there is liquid level difference, in described water tank 2, be provided with water tank level gauging instrument 14.
High-efficiency clarifier 1 bottom, by pipeline communication absorption tower 16, is provided with and is communicated with bed mud transferpump 1 on the pipeline between high-efficiency clarifier 1 bottom and absorption tower 16.In high-efficiency clarifier 1, be provided with high-efficiency clarifier mud level meter 12.In described secondary settler 4, be provided with secondary settler mud level meter 13.On pipeline between secondary settler 4 bottoms and sludge filter press 17, be provided with sludge delivery pump 8.On the pipeline of secondary settler 4 relief outlets, be provided with waste water effluent stream amount meter 15.
On pipeline between high-efficiency clarifier 1 bottom and absorption tower 16, be arranged in parallel bed mud transferpump 11 for subsequent use with bed mud transferpump 1.On pipeline between described water tank 2 and dosing processing tank 3 with go out water pump 6 be arranged in parallel for subsequent use go out water pump 7.
On pipeline between secondary settler 4 bottoms and sludge filter press 17, be provided with sludge delivery pump 9 for subsequent use with sludge delivery pump 8.The height that has liquid level difference between the overflow port of high-efficiency clarifier 1 and water tank 2 is 0.5 ~ 2m, and between the water port of described dosing processing tank 3 and secondary settler 4, having liquid level difference is 0.5 ~ 1m.
Working process:
Desulfurization wastewater carries out solid-liquid separation through waste-water vortex device 5, the lower slurries of solid content after separating are sent in high-efficiency clarifier 1, in way on pipeline through wastewater treatment under meter 16, for measuring wastewater treatment capacity; High-efficiency clarifier mud level meter 12 Real-Time Monitoring high-efficiency clarifier 1 mud position, bottom running conditions, when mud position reaches ceiling value, by bed mud transferpump 10, the slurries foldback that pressurizes is got back to absorption tower 16 and realized circulation, simultaneously waste water with the free overflow of liquid level difference to water tank 2, when liquid level reaches after set(ting)value, Controlling System adds waste water to be sent to dosing tank 3 and to process by going out water pump 6, the free overflow of waste water after treatment in secondary settler 4 again clarification filtration after becoming qualified waste water, discharge.
With in the time that the interior mud level meter of secondary settler 4 reaches ceiling value, by sludge delivery pump 8, mud is delivered to sludge filter press 17 systems and carries out pressure-filteration drying.
Claims (10)
1. one kind adopts the desulfurizing waste water processing device of high-efficiency clarifier, this device comprises waste-water vortex device (5), it is characterized in that: this device also comprises high-efficiency clarifier (1), water tank (2), dosing processing tank (3), secondary settler (4) and go out water pump (6), described waste-water vortex device (5) is by pipeline communication high-efficiency clarifier (1), the overflow port of described high-efficiency clarifier (1) is by pipeline communication water tank (2), between the overflow port of described high-efficiency clarifier (1) and water tank (2), there is liquid level difference, described water tank (2) is by pipeline communication dosing processing tank (3), on pipeline between described water tank (2) and dosing processing tank (3), be provided with out water pump (6), the water port of described dosing processing tank (3) is communicated with secondary settler (4), between the water port of described dosing processing tank (3) and secondary settler (4), there is liquid level difference, in described water tank (2), be provided with water tank level gauging instrument (14).
2. the desulfurizing waste water processing device of employing high-efficiency clarifier according to claim 1, it is characterized in that: described high-efficiency clarifier (1) bottom, by pipeline communication absorption tower (16), is provided with and is communicated with bed mud transferpump (1) on the pipeline between described high-efficiency clarifier (1) bottom and absorption tower (16).
3. the desulfurizing waste water processing device of employing high-efficiency clarifier according to claim 1 and 2, is characterized in that: in described high-efficiency clarifier (1), be provided with high-efficiency clarifier mud level meter (12).
4. the desulfurizing waste water processing device of employing high-efficiency clarifier according to claim 1, is characterized in that: in described secondary settler (4), be provided with secondary settler mud level meter (13).
5. according to the desulfurizing waste water processing device of the employing high-efficiency clarifier described in claim 1 or 4, it is characterized in that: on the pipeline between described secondary settler (4) bottom and sludge filter press (17), be provided with sludge delivery pump (8).
6. according to the desulfurizing waste water processing device of the employing high-efficiency clarifier described in claim 1 or 4, it is characterized in that: on the pipeline of described secondary settler (4) relief outlet, be provided with waste water effluent stream amount meter (15).
7. the desulfurizing waste water processing device of employing high-efficiency clarifier according to claim 1 and 2, is characterized in that: on the pipeline between described high-efficiency clarifier (1) bottom and absorption tower (16), be arranged in parallel bed mud transferpump for subsequent use (11) with bed mud transferpump (1).
8. the desulfurizing waste water processing device of employing high-efficiency clarifier according to claim 1, is characterized in that: on the pipeline between described water tank (2) and dosing processing tank (3) with go out water pump (6) be arranged in parallel for subsequent use go out water pump (7).
9. the desulfurizing waste water processing device of employing high-efficiency clarifier according to claim 5, is characterized in that: on the pipeline between described secondary settler (4) bottom and sludge filter press, be provided with sludge delivery pump for subsequent use (9) with sludge delivery pump (8).
10. the desulfurizing waste water processing device of employing high-efficiency clarifier according to claim 1, it is characterized in that: between the overflow port of described high-efficiency clarifier (1) and water tank (2), having the height of liquid level difference is 0.5 ~ 2m, between the water port of described dosing processing tank (3) and secondary settler (4), having liquid level difference is 0.5 ~ 1m.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210592449.2A CN103910445A (en) | 2012-12-31 | 2012-12-31 | Desulfurization wastewater treatment device adopting efficient clarifier |
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| CN201210592449.2A CN103910445A (en) | 2012-12-31 | 2012-12-31 | Desulfurization wastewater treatment device adopting efficient clarifier |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104984589A (en) * | 2015-07-02 | 2015-10-21 | 浙江天地环保工程有限公司 | Wastewater treatment device based on wet desulphurization system |
| CN110078340A (en) * | 2019-06-03 | 2019-08-02 | 广州珠江电力有限公司 | A kind of desulfurization wastewater sludge recycling system and method |
| CN112777705A (en) * | 2021-04-08 | 2021-05-11 | 国能龙源环保有限公司 | Wastewater pretreatment system and method with self-adjusting density of clarified liquid |
| CN113912170A (en) * | 2021-11-15 | 2022-01-11 | 西安热工研究院有限公司 | Water sample pretreatment system for high-turbidity wastewater online detection |
-
2012
- 2012-12-31 CN CN201210592449.2A patent/CN103910445A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104984589A (en) * | 2015-07-02 | 2015-10-21 | 浙江天地环保工程有限公司 | Wastewater treatment device based on wet desulphurization system |
| CN110078340A (en) * | 2019-06-03 | 2019-08-02 | 广州珠江电力有限公司 | A kind of desulfurization wastewater sludge recycling system and method |
| CN112777705A (en) * | 2021-04-08 | 2021-05-11 | 国能龙源环保有限公司 | Wastewater pretreatment system and method with self-adjusting density of clarified liquid |
| CN113912170A (en) * | 2021-11-15 | 2022-01-11 | 西安热工研究院有限公司 | Water sample pretreatment system for high-turbidity wastewater online detection |
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Application publication date: 20140709 |