CN212713044U - Boiler effluent treatment plant of thermal power plant - Google Patents
Boiler effluent treatment plant of thermal power plant Download PDFInfo
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- CN212713044U CN212713044U CN202021358285.3U CN202021358285U CN212713044U CN 212713044 U CN212713044 U CN 212713044U CN 202021358285 U CN202021358285 U CN 202021358285U CN 212713044 U CN212713044 U CN 212713044U
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Abstract
A boiler wastewater treatment device of a thermal power plant comprises a boiler, wherein an ash flushing wastewater outlet of the boiler is communicated with an inlet of a first water pump through a first conveying pipeline, an outlet of the first water pump is communicated with an inlet of a wastewater collection box through a second conveying pipeline, an outlet of the wastewater collection box is communicated with a sedimentation tank through a second water pump and a third conveying pipeline in sequence, a clear water tank is arranged on one side of the sedimentation tank, and an outlet of the clear water tank discharges treated ash flushing wastewater through a fourth conveying pipeline; a dosing pump is arranged on the wastewater collection box, the inlet end of the dosing pump is connected with the sodium hypochlorite medicine tank, and the outlet end of the dosing pump extends to the upper part of the wastewater collection box; install micropore ceramic filter and sewage elevator pump in the clear water pond, sewage elevator pump entry end and the fifth pipeline intercommunication, the exit end that extend to the sedimentation tank inside are located micropore ceramic filter top. The utility model discloses carry out the physical chemistry with the interior ash-washed waste water of boiler and handle and reach follow-up equipment requirement and accord with industrial wastewater discharge relevant standard.
Description
Technical Field
The utility model belongs to the technical field of thermal power plant's waste water treatment, in particular to boiler effluent treatment plant of thermal power plant.
Background
The ash flushing wastewater is one of main wastewater of a thermal power plant, occupies nearly half of the proportion of the whole wastewater, is mainly used for flushing slag and ash discharged by a dust remover, the type and the content of pollutants in the ash flushing wastewater are related to the type, the combustion mode and the ash conveying mode of boiler coal, and the main indexes of the pollutants in the ash flushing wastewater are suspended matters, pH values, salt contents and the like. At present, the ash flushing wastewater can be discharged through cooling and primary filtering, if the ash flushing wastewater is directly discharged, not only can the suspended matters of a receiving water body exceed the standard, but also the saline and alkaline of nearby soil can be caused, and the normal ecological environment can be destroyed.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a boiler wastewater treatment device of a thermal power plant, which enables the ash-washing wastewater discharged by a boiler to accord with the industrial wastewater discharge standard through treatment.
The purpose of the utility model and the technical problem thereof are realized by adopting the following technical scheme. According to the utility model, the boiler waste water treatment device of the thermal power plant comprises a boiler, an ash flushing waste water outlet of the boiler is communicated with an inlet of a first water pump through a first conveying pipeline, an outlet of the first water pump is communicated with an inlet of a waste water collecting box through a second conveying pipeline, an outlet of the waste water collecting box is communicated with a sedimentation tank through a second water pump and a third conveying pipeline in sequence, a clear water tank is arranged on one side of the sedimentation tank, and the treated ash flushing waste water is discharged from an outlet of the clear water tank through a fourth conveying pipeline; a dosing pump is arranged on the wastewater collection box, the inlet end of the dosing pump is connected with the sodium hypochlorite medicine tank, and the outlet end of the dosing pump extends to the upper part of the wastewater collection box; install the micropore ceramic filter that the level was placed and be located the sewage elevator pump of micropore ceramic filter top in the clear water pond, this sewage elevator pump entry end communicates with the fifth pipeline that extends to the sedimentation tank inside, exit end is located micropore ceramic filter top.
The purpose of the utility model is further realized by adopting the following technical measures.
According to the thermal power plant boiler wastewater treatment device, the mechanical grab bucket used for salvaging sediments accumulated at the bottom of the sedimentation tank is arranged above the sedimentation tank.
The boiler wastewater treatment device of the thermal power plant is characterized in that the inlet of the fifth output pipeline is provided with a filter screen.
According to the boiler wastewater treatment device for the thermal power plant, the industrial dust collector convenient for regularly cleaning ash and slag accumulated above the microporous ceramic filter plate is arranged at the top of the clean water tank.
Borrow by above-mentioned technical scheme, the utility model discloses take out the ash waste water that dashes in the boiler and carry out a series of preliminary treatment, make the ash waste water that dashes pass through the requirement that chemical treatment and physics filter reach subsequent handling equipment in proper order, the filtering has had big particle diameter impurity and has prolonged the life of subsequent handling equipment, in addition the utility model has the advantages of simple and reasonable, with low costs of structural design, convenient to popularize and apply.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
In the description of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
The present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 1, a boiler wastewater treatment device of a thermal power plant comprises a boiler 1, wherein an ash flushing wastewater outlet of the boiler 1 is communicated with an inlet of a first water pump 3 through a first conveying pipeline 2, an outlet of the first water pump 3 is communicated with an inlet of a wastewater collection box 5 through a second conveying pipeline 4, an outlet of the wastewater collection box 5 is communicated with a sedimentation tank 8 through a second water pump 6 and a third conveying pipeline 7 in sequence, a clear water tank 9 is arranged on one side of the sedimentation tank 8, and an outlet of the clear water tank 9 discharges treated ash flushing wastewater through a fourth conveying pipeline 10; a dosing pump 11 is arranged on the wastewater collection box 5, the inlet end of the dosing pump 11 is connected with a sodium hypochlorite medicine tank 12, and the outlet end of the dosing pump extends to the upper part of the wastewater collection box; install the micropore ceramic filter 13 that the level was placed and be located the sewage elevator pump 14 of micropore ceramic filter top in the clear water pond, this sewage elevator pump 14 entry end with extend to the inside fifth pipeline 15 intercommunication of sedimentation tank, the exit end is located micropore ceramic filter top, the entry of fifth output pipeline has the filter screen to prevent that big particle diameter lime-ash from getting into the clear water pond.
Preferably, a mechanical grab 16 for fishing out the sediment accumulated at the bottom of the sedimentation basin is arranged above the sedimentation basin.
Preferably, an industrial vacuum cleaner 17 for periodically cleaning the ash accumulated above the microporous ceramic filter plate is provided on the top of the clean water tank.
The utility model discloses the theory of operation as follows:
the ash flushing wastewater for cleaning the boiler enters a first water pump 3 through a first conveying pipeline 2, the alkaline cleaning waste liquid with high-concentration ash slag water is pumped into a waste water collecting tank 5 through a second conveying pipeline 4 by the first water pump, sodium hypochlorite liquid medicine in a sodium hypochlorite medicine tank 12 is thrown into the waste water collecting tank by a medicine adding pump 11 to realize acid-base neutralization, the alkaline cleaning waste liquid and the waste liquid in the waste water collecting tank are subjected to chemical reaction to be subjected to oxidative decomposition, so that metal ions are precipitated, the sewage after the oxidative decomposition is pumped into a sedimentation tank 8 through a third conveying pipeline 7 by a second water pump 6, the sedimentation is carried out in the sedimentation tank for 1-4 hours, most large-particle ash slag is settled in the sedimentation tank, the fly ash particles in the ash flushing wastewater after the sedimentation are small and generally below 100 mu m, a sewage lifting pump 14 is started and pumps the settled sewage into a clean water tank through a fifth conveying pipe 15, because install micropore ceramic filter 13 in the clear water pond, this micropore ceramic filter is by aggregate quartz, aluminium oxide, certain binder of blending such as carborundum, the pore-forming agent, rare earth resist forms through high-temperature sintering, form the bridge arch form opening micropore passageway that a lot of size distributions are even and communicate each other in the inboard, produce the physical effect when sewage passes through micropore passageway's surface and inside, the tiny particle sewage sludge can not pass through, the effect of purifying sewage once more has been played, sewage becomes the clear water after being purified once more and flows out through fourth pipeline 10. The surface of the microporous ceramic filter plate can be covered with ash after being used for a period of time, the work of the sewage lifting pump can be suspended at the moment, the microporous ceramic filter plate is quickly cleaned by the manual operation industrial dust collector, and the influence of small-particle ash on the water purification efficiency of the clean water tank due to the blockage of a microporous channel is prevented.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art can easily modify, change or modify the above embodiments according to the technical spirit of the present invention without departing from the scope of the present invention.
Claims (4)
1. The utility model provides a boiler effluent treatment plant of thermal power plant, includes the boiler, its characterized in that: an ash flushing wastewater outlet of the boiler is communicated with an inlet of a first water pump through a first conveying pipeline, an outlet of the first water pump is communicated with an inlet of a wastewater collecting box through a second conveying pipeline, an outlet of the wastewater collecting box is communicated with a sedimentation tank through a second water pump and a third conveying pipeline in sequence, a clear water tank is arranged on one side of the sedimentation tank, and an outlet of the clear water tank discharges the treated ash flushing wastewater through a fourth conveying pipeline;
a dosing pump is arranged on the wastewater collection box, the inlet end of the dosing pump is connected with the sodium hypochlorite medicine tank, and the outlet end of the dosing pump extends to the upper part of the wastewater collection box; install the micropore ceramic filter that the level was placed and be located the sewage elevator pump of micropore ceramic filter top in the clear water pond, this sewage elevator pump entry end communicates with the fifth pipeline that extends to the sedimentation tank inside, exit end is located micropore ceramic filter top.
2. The thermal power plant boiler wastewater treatment device according to claim 1, characterized in that: and a mechanical grab bucket for salvaging sediments accumulated at the bottom of the sedimentation tank is arranged above the sedimentation tank.
3. The thermal power plant boiler wastewater treatment device according to claim 1, characterized in that: the inlet of the fifth output duct has a sieve.
4. The thermal power plant boiler wastewater treatment device according to claim 1, characterized in that: an industrial dust collector which is convenient for regularly cleaning ash and slag accumulated above the microporous ceramic filter plate is arranged at the top of the clean water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021358285.3U CN212713044U (en) | 2020-07-10 | 2020-07-10 | Boiler effluent treatment plant of thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021358285.3U CN212713044U (en) | 2020-07-10 | 2020-07-10 | Boiler effluent treatment plant of thermal power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212713044U true CN212713044U (en) | 2021-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021358285.3U Active CN212713044U (en) | 2020-07-10 | 2020-07-10 | Boiler effluent treatment plant of thermal power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212713044U (en) |
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2020
- 2020-07-10 CN CN202021358285.3U patent/CN212713044U/en active Active
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