CN205188014U - Wet flue gas desulfurization effluent treatment plant of thermal power plant - Google Patents
Wet flue gas desulfurization effluent treatment plant of thermal power plant Download PDFInfo
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- CN205188014U CN205188014U CN201520871221.6U CN201520871221U CN205188014U CN 205188014 U CN205188014 U CN 205188014U CN 201520871221 U CN201520871221 U CN 201520871221U CN 205188014 U CN205188014 U CN 205188014U
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Abstract
The utility model provides a wet flue gas desulfurization effluent treatment plant of thermal power plant, belongs to the waste water treatment equipment technical field of thermal power plant for to the useless treatment of water of wet flue gas desulfurization. Its technical scheme is: set up caisson just at desulfurization wastewater treatment device front end, the waste water thick liquid carries out the homogenization of quality of water, the water yield through tentatively precipitating laggard income regulating box in first caisson here. Then adding the medicine with case, settling chamber, flocculation case in the process and handling, reentrant depositing reservoir, supernatant enter clean water basin discharge to reach standard, and the concentrated mud in bottom gets into the sludge impoundment, carries filter press to squeeze processing, formation solid waste by the mud collecting pump. The utility model discloses the structure sets up scientific and reasonable, and the heavy metal in the exhausted water can effectively be got rid of, and the clear water of after -separating can discharge to reach standard, and mud gets into filter press compressing. The utility model discloses the operation is stable, is showing to have improved the efficiency of handling desulfurization waste water, has avoided the pollution of environment.
Description
Technical field
The utility model relates to a kind of device processed the wet desulphurization waste water of thermal power plant, belongs to waste water of heat-engine plant treatment facility technical field.
Background technology
In heat-engine plant wet desulfurization, because technology maturation, desulfuration efficiency be high, stable etc., advantage is widely used thermal power plant's wet desulfurization of flue gas by limestone-gypsum method, but the salinity in serous fluid processed by wet flue gas desulfurization and suspended impurity concentration can be more and more higher with the increase of working time, be washed down after entering desulfuration absorbing tower containing the fluorion brought from raw coal on a small quantity and chlorion in flue gas in addition and enter slurries.Aluminium combined action in fluorion and slurries produces screening effect to the dissolving of desulfurization absorbent Wingdale, causes that Wingdale solvability weakens, desulfuration efficiency reduces; And increasing of chlorine ion concentration also can cause desulfurization degree to decline, accelerate the corrosive wear of the flow passage components such as slush pump impeller, rubber lined pipe, and affect gypsum qualitt.Therefore, Limestone/Gypsum-based Wet Process Flue Gas Desulfuration needs to discharge a part of absorption tower slurries usually, and to reach the object controlling chlorion, fluorinion concentration, this part slurries of discharge are referred to as desulfurization wastewater.From the current situation that puts into operation, the desulfurization wastewater treatment facility of many power plant is because of design consideration deficiency, and after putting into operation, failure rate is higher, and maintenance workload is large, and even part power plant desulfurization sewage treatment equipment cannot normally put into operation.The main Problems existing of current power plant desulfurization Waste Water Treatment is:
(1) in waste water, solid matter content exceeds standard, and causes the deposition of each case tank serious;
(2) settling pond process capacity is little, and cause depositing time not enough, water outlet is muddy.
In order to improve the efficiency of process desulfurization wastewater, avoiding the pollution of environment, being necessary to be improved existing power plant desulfurization sewage treatment equipment.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of Wet desulphurization wastewater treatment device of thermal power plant, the steady running of this appliance ensure desulfurization wastewater equipment, the fouling simultaneously avoiding the long-time running of equipment to bring and blocking.
The technical scheme solved the problems of the technologies described above is:
A kind of Wet desulphurization wastewater treatment device of thermal power plant, it comprises just caisson, surge tank, in and case, sludge box, flocculation tanks, clarification case, filtered water tank, sludge sump, mud collecting pump, plate-and-frame filter press, drug stock control tank, first caisson is connected by pipeline with surge tank, during surge tank has lift pump to be connected to and case, in and case and sludge box, flocculation tanks is connected successively, flocculation tanks has lift pump to be connected to clarification case, the top of clarification case is connected with filtered water tank by filter vat, the bottom of clarification case has pipeline to be connected with sludge sump, mud collecting pump is had to be connected with plate-and-frame filter press in sludge sump, the administration device of drug stock control tank respectively with in and case, sludge box, flocculation tanks, clarification case is connected.
The Wet desulphurization wastewater treatment device of above-mentioned thermal power plant, described drug stock control tank comprises NaOH hold-up vessel, PFS hold-up vessel, organosulfur hold-up vessel, PAM hold-up vessel, the administration device of NaOH hold-up vessel and PFS hold-up vessel with in be connected with case, the administration device of organosulfur hold-up vessel is connected with flocculation tanks, and the administration device of PAM hold-up vessel is connected in the input channel of clarification case.
The beneficial effects of the utility model are:
Just caisson, surge tank of the present utility model carry out preliminary sedimentation separation to desulfurization wastewater, with case, sludge box, flocculation tanks during waste water after initial gross separation enters successively, and enter clarification case after carrying out agent-feeding treatment, further precipitate and separate in clarification case, clear water flows into filtered water tank from clarification upper box part, precipitation mud be discharged to sludge sump from bottom, in sludge sump mud via mud collecting pump be delivered to plate-and-frame filter press carry out squeezing process, formation solid waste.
The utility model vibrational power flow is scientific and reasonable, and in first caisson, Direct precipitation can remove a large amount of suspended substance, then through in and case, sludge box, after flocculation tanks agent-feeding treatment, the heavy metal in exhausted water can be efficiently removed.Clear water after separation can qualified discharge, and mud enters plate-and-frame filter press processed compressed.The utility model is stable, significantly improves the efficiency of process desulfurization wastewater, avoids the pollution of environment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure mark as follows: first caisson 1, surge tank 2, in and case 3, sludge box 4, flocculation tanks 5, clarify case 6, filtered water tank 7, sludge sump 8, mud collecting pump 9, plate-and-frame filter press 10, NaOH hold-up vessel 11, PFS hold-up vessel 12, organosulfur hold-up vessel 13, PAM hold-up vessel 14.
Embodiment
The utility model by first caisson 1, surge tank 2, in and case 3, sludge box 4, flocculation tanks 5, clarification case 6, filtered water tank 7, sludge sump 8, mud collecting pump 9, plate-and-frame filter press 10, NaOH hold-up vessel 11, PFS hold-up vessel 12, organosulfur hold-up vessel 13, PAM hold-up vessel 14 form.
Show in figure, the utility model arranges just caisson 1 and surge tank 2 in desulfurizing waste water processing device front end, first caisson 1 is connected by pipeline with surge tank 2.What first caisson 1 was preliminary carries out solid-liquid separation to the macrobead suspended substance in waste water, concentrated mud is delivered to sludge sump 8 by the sludge carrier pipe road arranged bottom first caisson 1 and carries out filter pressing cake, waste water slurries enter surge tank 2 in first caisson 1 after preliminary sedimentation, carry out the homogenizing of water quality, the water yield.First caisson 1 significantly can reduce the load of desulfurization wastewater subsequent handling.
Show in figure, in be connected successively with sludge box 4, flocculation tanks 5 with case 3, flocculation tanks 5 have lift pump be connected to clarification case 6, the waste water in surge tank 2 by lift pump promote enter in and case 3.In sludge box 4, flocculation tanks 5, clarification case 6, there is drug stock control tank to carry out dispensing process.
Show in figure, the top of clarification case 6 is connected with filtered water tank 7 by filter vat, and the bottom of clarification case 6 has pipeline to be connected with sludge sump 8, has mud collecting pump 9 to be connected with plate-and-frame filter press 10 in sludge sump 8.Waste water after agent-feeding treatment enters settling pond 6 and carries out precipitate and separate, and supernatant liquor enters filter vat and carries out filtration treatment, and water outlet enters clean water basin 7, is discharged to outdoor plant area blow-off line by pump delivery.Mud after concentrated in settling pond 6 enters sludge sump 8, is transported to plate-and-frame filter press 10 and carries out squeezing process, form solid waste by mud collecting pump 9.
Show in figure, drug stock control tank comprises NaOH hold-up vessel 11, PFS hold-up vessel 12, organosulfur hold-up vessel 13, PAM hold-up vessel 14.NaOH hold-up vessel 11 in and add NaOH and stir in case 3, regulate waste water PH between 8.0 ~ 9.0, PFS hold-up vessel to in and in case 3 dosing coagulant PFS carry out precipitate and separate.Organosulfur hold-up vessel 13 adds organosulfur to flocculation tanks, and PAM hold-up vessel 14 carries out precipitate and separate to clarification case 6 dosing coagulant PAM.Through in and case 3, sludge box 4, after flocculation tanks 5 agent-feeding treatment, the heavy metal in exhausted water can be efficiently removed.
The part-structure of an embodiment of the present utility model is as follows:
The physical dimension of first caisson 1 is Ф 6000 × 4500mm;
The physical dimension of surge tank 2 is 4000 × 7500 × 4000mm;
In and the physical dimension of case 3 be 2500 × 3000 × 6500mm;
The physical dimension of sludge box 4 is 2500 × 2500 × 6200mm;
The physical dimension of flocculation tanks 5 is 2500 × 2500 × 6200mm;
The physical dimension of clarification case 6 is Ф 10000 × 6500mm;
The physical dimension of filtered water tank 7 is 4000 × 4000 × 3500mm;
The physical dimension of sludge sump 8 is 4000 × 4000 × 2500mm;
The physical dimension of NaOH hold-up vessel 11 is Ф 2000 × 3500mm;
The physical dimension of PFS hold-up vessel 12 is Ф 1000 × 1500mm;
The physical dimension of organosulfur hold-up vessel 13 is Ф 1000 × 1500mm;
The physical dimension of PAM hold-up vessel 14 is Ф 1000 × 1500mm.
Claims (2)
1. a Wet desulphurization wastewater treatment device for thermal power plant, is characterized in that: it comprises just caisson (1), surge tank (2), in and case (3), sludge box (4), flocculation tanks (5), clarification case (6), filtered water tank (7), sludge sump (8), mud collecting pump (9), plate-and-frame filter press (10), drug stock control tank, first caisson (1) is connected by pipeline with surge tank (2), during surge tank (2) has lift pump to be connected to and case (3), in and case (3) and sludge box (4), flocculation tanks (5) is connected successively, flocculation tanks (5) has lift pump to be connected to clarification case (6), the top of clarification case (6) is connected with filtered water tank (7) by filter vat, the bottom of clarification case (6) has pipeline to be connected with sludge sump (8), have mud collecting pump (9) to be connected with plate-and-frame filter press (10) in sludge sump (8), the administration device of drug stock control tank respectively with in and case (3), sludge box (4), flocculation tanks (5), clarification case (6) is connected.
2. the Wet desulphurization wastewater treatment device of thermal power plant according to claim 1, it is characterized in that: described drug stock control tank comprises NaOH hold-up vessel (11), PFS hold-up vessel (12), organosulfur hold-up vessel (13), PAM hold-up vessel (14), the administration device of NaOH hold-up vessel (11) and PFS hold-up vessel (12) with in be connected with case (3), the administration device of organosulfur hold-up vessel (13) is connected with flocculation tanks (5), and the administration device of PAM hold-up vessel (14) is connected in the input channel of clarification case (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520871221.6U CN205188014U (en) | 2015-11-04 | 2015-11-04 | Wet flue gas desulfurization effluent treatment plant of thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520871221.6U CN205188014U (en) | 2015-11-04 | 2015-11-04 | Wet flue gas desulfurization effluent treatment plant of thermal power plant |
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| Publication Number | Publication Date |
|---|---|
| CN205188014U true CN205188014U (en) | 2016-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520871221.6U Expired - Fee Related CN205188014U (en) | 2015-11-04 | 2015-11-04 | Wet flue gas desulfurization effluent treatment plant of thermal power plant |
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| Country | Link |
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| CN (1) | CN205188014U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110040880A (en) * | 2019-05-28 | 2019-07-23 | 无锡西江悦环境科技工程有限公司 | The processing method of desulfurization wastewater |
| CN110237667A (en) * | 2019-07-19 | 2019-09-17 | 中冶焦耐(大连)工程技术有限公司 | Gravity separation processing coking sulphur foam produces the technique and system of sulphur slurry |
-
2015
- 2015-11-04 CN CN201520871221.6U patent/CN205188014U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110040880A (en) * | 2019-05-28 | 2019-07-23 | 无锡西江悦环境科技工程有限公司 | The processing method of desulfurization wastewater |
| CN110237667A (en) * | 2019-07-19 | 2019-09-17 | 中冶焦耐(大连)工程技术有限公司 | Gravity separation processing coking sulphur foam produces the technique and system of sulphur slurry |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160427 Termination date: 20191104 |
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| CF01 | Termination of patent right due to non-payment of annual fee |