CN214612045U

CN214612045U - Waste water treatment device of thermal power plant

Info

Publication number: CN214612045U
Application number: CN202023325568.0U
Authority: CN
Inventors: 陈雷; 裴胜; 毕天盛; 彭旭阳; 陆俊俊
Original assignee: Huaneng Jiangyin Gas Turbine Thermal Power Co ltd
Current assignee: Huaneng Jiangyin Gas Turbine Thermal Power Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-11-05
Anticipated expiration: 2030-12-31

Abstract

The utility model provides a waste water treatment device of steam power plant, includes a inlet tube, a treatment tank and a outlet pipe, its characterized in that: a first baffle, a second baffle and a third baffle are sequentially arranged in the treatment tank; the heat exchange pipelines are arranged in the treatment tank at one side of the first baffle, which is far away from the second baffle, in a staggered manner; an aeration mechanism is arranged in the treatment tank between the first baffle and the second baffle; a filtering mechanism is arranged in the treatment tank between the second baffle and the third baffle; an ozone net pipe is arranged in the treatment tank at one side of the third baffle, which is far away from the second baffle; the aeration mechanism at least comprises three groups of stirring blades, an air pump, a sealing seat, a driving motor and a rotating shaft. By adopting the above processing pool, the utility model, can effectively carry out the heat exchange to high temperature waste water through the cold water that flows in the heat exchange pipeline, reduce the waste water temperature, avoid the overheated water thermal pollution that causes of discharged waste water, effectively carry out recycle to the heat energy in the waste water, it is extravagant to reduce heat energy.

Description

Waste water treatment device of thermal power plant

Technical Field

The utility model relates to a water treatment technical field, in particular to waste water treatment device of steam power plant.

Background

The thermal power plant is a thermal power plant which utilizes the extraction steam or the exhaust steam of a steam turbine to supply heat for users while generating electricity. The main working principle is that hot water generated after power generation of a thermal power plant is utilized and is heated again for heating. Thermal power plant can produce a large amount of waste water at the in-process that puts into operation, and these waste water have certain temperature, if direct discharge, not only can cause the heat energy extravagant, still can cause thermal pollution, influence ecological balance.

When the existing thermal power plant is used for treating wastewater, most of the impurities in the wastewater are only filtered and treated, so that the heat energy in the water body can not be recycled, certain energy waste is caused, and the hidden danger of thermal pollution is also brought to the environment. Simultaneously, current effluent treatment plant, when carrying out aeration treatment to waste water, unable hoisting device's aeration effect exists the not good phenomenon of aeration rate.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a waste water treatment device of steam power plant can effectively solve the extravagant problem of heat energy in the waste water, reduces the thermal pollution of waste water, can effectively promote the aeration effect, improves waste water treatment rate.

In order to achieve the above object, the solution of the present invention is: a thermal power plant wastewater treatment device comprises a water inlet pipe, a treatment pool and a water outlet pipe, wherein the water inlet pipe and the water outlet pipe are respectively positioned at two ends of the treatment pool and communicated with an inner cavity of the treatment pool; the first baffle is positioned on one side of the water inlet pipe, the third baffle is positioned on one side of the water outlet pipe, and heat exchange pipelines are arranged inside the treatment tank on one side of the first baffle, which is far away from the second baffle, in a staggered manner; an aeration mechanism is arranged in the treatment tank between the first baffle and the second baffle; a filtering mechanism is arranged in the treatment tank between the second baffle and the third baffle; an ozone net pipe is arranged in the treatment tank at one side of the third baffle, which is far away from the second baffle; a first water guide pipe is arranged at an overflow port of the second baffle close to one side of the water outlet pipe, and the bottom end of the first water guide pipe penetrates through the filter mechanism and extends to the lower part of the filter mechanism; a second water guide pipe is arranged at an overflow port of the third baffle plate, which is close to one side of the water outlet pipe, and the bottom end of the second water guide pipe extends to the lower part of the ozone net pipe;

the aeration mechanism at least comprises three groups of stirring blades, an air pump, a sealing seat, a driving motor and a rotating shaft; the air pump and the air pump are both positioned on the outer side wall of the treatment pool between the first baffle and the second baffle, and the output end of the air pump is communicated with the sealing seat; the driving motor is positioned at one end of the sealing seat far away from the treatment pool, and the output end of the driving motor extends into the sealing seat; the rotating shaft is rotatably connected between the inner walls of the treatment tank, the setting direction of the rotating shaft is consistent with the directions of the first baffle and the second baffle, one end of the rotating shaft extends to the center of an external sealing seat of the treatment tank, through holes are uniformly formed in the rotating shaft in the sealing seat, and one end of the rotating shaft in the sealing seat is fixedly connected with the output end of the driving motor; the stirring blades are arranged on the outer surface of the rotating shaft at equal intervals, and aeration heads are uniformly arranged on the stirring blades.

Furthermore, the top end of the treatment tank right above the aeration mechanism is provided with an opening, and activated sludge is paved in the treatment tank right below the aeration mechanism.

Further, the number of the stirring blades in each group is at least 2.

Furthermore, sealing rings are arranged on the contact surfaces of the sealing seat, the output shaft of the driving motor and the rotating shaft.

Furthermore, the aeration head adopts a one-way water-blocking aeration head.

Furthermore, the filtering mechanism is composed of four layers of filtering plates, and fillers in the four layers of filtering plates are crushed quartz stone, coal dust, magnetite filter material and activated carbon particles from bottom to top respectively.

Furthermore, one end of the heat exchange pipeline is connected with a cold water inlet pipe, and the other end of the heat exchange pipeline is connected with a dust removal flushing water pipe of the thermal power plant.

Furthermore, the section of the heat exchange pipeline is of a triangular structure, and the tip end of the heat exchange pipeline faces upwards; and a bin door is arranged at the top end of the treatment tank above the heat exchange pipeline.

Compared with the prior art, the utility model has the advantages that: by adopting the treatment tank, the high-temperature wastewater can be effectively subjected to heat exchange through cold water flowing in the heat exchange pipeline, the temperature of the wastewater is reduced, and the thermal pollution of a water body caused by overheating of the discharged wastewater is avoided; the aeration work of the aeration mechanism can be effectively utilized, so that impurities in the wastewater are fully contacted with the activated sludge, reacted and absorbed, and organic matters and inorganic matters in the wastewater are decomposed; the wastewater can be effectively filtered layer by layer through the four filter plates of the filtering mechanism, so that large-particle impurities, sludge, iron, carbon, copper, germanium, manganese, fluorine, scandium and other substances, other inorganic substances and fine impurities in the wastewater are removed, and the cleanliness of the filtered water body is ensured; can effectively sterilize the wastewater through the ozone net pipe and ensure the sterility of the discharged water body. The device can effectively recycle the heat energy in the waste water, reduce the waste of the heat energy, and enhance the aeration effect of the waste water, thereby improving the waste water treatment efficiency.

Drawings

Figure 1 is the side-cut structure schematic diagram of the treatment tank of the wire coil of the utility model.

Fig. 2 is a schematic view of the local overlooking structure of the treatment tank of the present invention.

Fig. 3 is an enlarged cross-sectional view of the cross-section a of fig. 2 according to the present invention.

Reference numerals:

the device comprises a water inlet pipe 1, a bin gate 2, a treatment tank 3, a first baffle plate 4, an aeration mechanism 5, a stirring blade 501, an air pump 502, a sealing seat 503, a driving motor 504, a rotating shaft 505, an aeration head 506, a through hole 507, a first water guide pipe 6, a filter mechanism 7, a second water guide pipe 8, a water outlet pipe 9, a heat exchange pipeline 10, a second baffle plate 11, a third baffle plate 12 and an ozone net pipe 13.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

The first embodiment is as follows:

as shown in fig. 1-3, a thermal power plant wastewater treatment device comprises a water inlet pipe 1, a treatment tank 3 and a water outlet pipe 9, wherein the water inlet pipe 1 and the water outlet pipe 9 are respectively positioned at two ends of the treatment tank 3 and communicated with an inner cavity of the treatment tank 3, a first baffle 4, a second baffle 11 and a third baffle 12 are sequentially arranged in the treatment tank 3, and overflow ports are formed at the top ends of the first baffle 4, the second baffle 11 and the third baffle 12; the first baffle 4 is positioned on one side of the water inlet pipe 1, the third baffle 12 is positioned on one side of the water outlet pipe 9, and heat exchange pipelines 10 are arranged inside the treatment tank 3 on one side of the first baffle 4, which is far away from the second baffle 11, in a staggered manner; the utility model discloses in, one end of heat exchange pipeline 10 connects the cold water inlet tube, another end connects the dust removal wash pipe of heat power plant, be convenient for carry out the heat exchange cooling to waste water through the cold water that flows in the heat exchange pipeline 10, avoid the overheated water thermal pollution that causes of exhaust waste water, and make the water injection thermal power plant dust removal wash pipe of intensification after the heat exchange in the heat exchange pipeline 10, heat supply power plant removes dust and uses, the phenomenon that the smoke and dust is difficult to peel off when avoiding the super-cooled water to remove dust, not only the heat energy of waste water is extravagant, the scrubbing ability when the wash water uses has still been promoted. In the utility model, the cross section of the heat exchange pipeline 10 is a triangular structure, and the tip end of the heat exchange pipeline 10 is upward, so that floccules or precipitates in the wastewater can slide into the bottom layer of the treatment tank 3 along the inclined plane of the heat exchange pipeline 10, thereby reducing the accumulation of the floccules and the precipitates on the surface of the heat exchange pipeline 10 and ensuring the heat exchange efficiency of the heat exchange pipeline 10; door 2 has been seted up on the 3 tops in the treatment tank of heat exchange pipeline 10 top, and the operating personnel of being convenient for opens door 2, drops into scrubbing medicament and cooperates the filtration use, improves the waste water treatment efficiency of device.

An aeration mechanism 5 is arranged in the treatment tank 3 between the first baffle 4 and the second baffle 11; a filtering mechanism 7 is arranged inside the treatment tank 3 between the second baffle 11 and the third baffle 12; the utility model discloses in, filtering mechanism 7 comprises four layers of filter plates, filler in four layers of filter plates is by supreme quartz crushed aggregates that is down respectively, the coal dust, magnetite filter material and active carbon particle, be convenient for get rid of large granule impurity and mud in the waste water through the quartz crushed aggregates layer of filtering mechanism 7, iron in getting rid of waste water through the coal dust ash of filtering mechanism 7, carbon, copper, material such as germanium and scandium and other inorganic matters, iron in the waste water is detached to the magnetite filter material through filtering mechanism 7, manganese, material such as fluorine, get rid of the tiny impurity of dissolving in the waste water through the active carbon particle of filtering mechanism 7, guarantee the cleanliness factor of straining the back water.

An ozone net pipe 13 is arranged in the treatment tank 3 on one side of the third baffle plate 12, which is far away from the second baffle plate 11, so that the water body is sterilized, and the safety of the discharged water body is ensured; a first water guide pipe 6 is arranged at an overflow port of the second baffle 11, which is close to one side of the water outlet pipe 9, and the bottom end of the first water guide pipe 6 penetrates through the filter mechanism 7 and extends to the lower part of the filter mechanism 7; a second water guide pipe 8 is arranged at an overflow port of the third baffle plate 12, which is close to one side of the water outlet pipe 9, the bottom end of the second water guide pipe 8 extends to the lower part of the ozone net pipe 13, so that the filtered water body is filtered and sterilized by the filtering mechanism 7 and the ozone net pipe 13 from bottom to top, and the cleanliness of the overflow water body on the upper layer is ensured, thereby ensuring the cleanliness of the discharged water body;

the aeration mechanism 5 comprises six groups of stirring blades 501, an air pump 502, a sealing seat 503, a driving motor 504 and a rotating shaft 505; the air pump 502 and the air pump 502 are both positioned on the outer side wall of the treatment pool 3 between the first baffle 4 and the second baffle 11, and the output end of the air pump 502 is communicated with the sealing seat 503; the driving motor 504 is positioned at one end of the sealing seat 503 far away from the processing pool 3, and the output end of the driving motor 504 extends to the inside of the sealing seat 503; the rotating shaft 505 is rotatably connected between the inner walls of the treatment pool 3, the setting direction of the rotating shaft 505 is consistent with the directions of the first baffle 4 and the second baffle 11, one end of the rotating shaft 505 extends to the center of the outer sealing seat 503 of the treatment pool 3, through holes 507 are uniformly arranged on the rotating shaft 505 in the sealing seat 503, and one end of the rotating shaft 505 in the sealing seat 503 is fixedly connected with the output end of the driving motor 504; the stirring blades 501 are arranged on the outer surface of the rotating shaft 505 at equal intervals, the stirring blades 501 are uniformly provided with aeration heads 506, the rotating shaft 505 and the stirring blades 501 are driven to rotate by the driving motor 504, wastewater is stirred and aerated, meanwhile, the air pump 502 works to inject ambient air into the sealing seat 503, so that air enters the rotating shaft 505 from through holes 507 in the rotating shaft 505 in the sealing seat 503, and is guided into the stirring blades 501 by the rotating shaft 505, and finally discharged by the aeration heads 506 on the stirring blades 501, the aeration effect of the stirring blades 501 is improved, and the treatment effect of the wastewater is further improved.

The utility model discloses in, establish to the opening on 3 tops in the treatment tank directly over

aeration mechanism

5, 3 middle berths in the treatment tank under aeration mechanism 5 are equipped with activated sludge, and the oxygen in the external environment of being convenient for gets into the waste water of aeration mechanism 5 department through the opening, increases aeration mechanism 5's aeration effect, increases waste water and activated sludge's contact surface for impurity in the waste water can fully be absorbed by activated sludge, decomposes organic matter and inorganic matter in the waste water, promotes the processing rate of waste water. The utility model discloses in, every group stirring leaf 501's number is 5, effectively increases stirring leaf 501's aeration area, promotes aeration mechanism 5's aeration effect.

The utility model discloses in, seal receptacle 503 all is equipped with the sealing washer with the output shaft of driving motor 504 and the contact surface of pivot 505, promotes seal receptacle 503's leakproofness, guarantees that the gas that air pump 502 produced can fully send into pivot 505 inside, finally discharges by the aeration head 506 on the stirring leaf 501, carries out aeration treatment to waste water.

The utility model discloses in, aeration head 506 adopts the one-way aeration head that blocks water, avoids impurity, particulate matter in the waste water to get into aeration head 506, avoids aeration head 506 to block up, guarantees aeration mechanism 5's aeration effect.

In actual production, the number of the stirring blades 501 can be increased or decreased as required to meet different use requirements of the aeration mechanism 5.

The working principle is as follows: when the device is used, wastewater with a certain temperature enters the treatment tank 3 through the water inlet pipe 1, at the moment, the falling wastewater is flushed on the surface of the heat exchange pipeline 10 and is subjected to heat exchange by cold water flowing in the heat exchange pipeline 10, the temperature of the wastewater is reduced, and the phenomenon that the discharged wastewater is overheated to cause water body thermal pollution is avoided; the heated water body after heat exchange in the heat exchange pipeline 10 is injected into the dust removal flushing water pipe of the thermal power plant, so that dust removal can be performed on the thermal power plant, the phenomenon that smoke dust is difficult to peel off when super-cooled water body removes dust is avoided, waste of heat energy of waste water is reduced, and the dirt removal capacity of flushing water for dust removal is improved; impurities and floccules in the waste water after heat exchange sink to the bottom of the treatment tank 3 under the action of gravity, supernatant enters the treatment tank 3 below the aeration mechanism 5 through an overflow port on the first baffle 4, at the moment, the aeration mechanism 5 works, the driving motor 504 drives the rotating shaft 505 and the stirring blades 501 to rotate to stir and aerate the waste water, the air pump 502 works simultaneously to inject ambient air into the sealing seat 503, so that air enters the rotating shaft 505 from a through hole 507 on the rotating shaft 505 in the sealing seat 503, then is guided into the stirring blades 501 through the rotating shaft 505, is discharged from an aeration head 506 on the stirring blades 501, so that the aeration effect of the stirring blades 501 is improved, the impurities in the waste water are fully contacted with activated sludge and react and absorb, organic matters and inorganic matters in the waste water are decomposed, the waste water after aeration enters the lower part of the filter mechanism 7 through the first water guide pipe 6, and the injected water body pushes the water level to rise, and then make waste water filter through the four filter plate layer layers of filter mechanism 7, effectively get rid of the material such as large granule impurity, mud, iron, carbon, copper, germanium, manganese, fluorine and scandium, other inorganic matters and tiny impurity in the waste water, guarantee the cleanliness factor of the water body after straining, finally, the waste water that filters the completion is leading-in ozone network pipe 13 below through second aqueduct 8, along with the rising of water level, the water through ozone network pipe 13 sterilization is finally discharged by outlet pipe 9, accomplish the processing of waste water complete set.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description of the present invention and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. The utility model provides a waste water treatment device of steam power plant, includes an inlet tube (1), one handles pond (3) and an outlet pipe (9), inlet tube (1) and outlet pipe (9) are located the both ends of handling pond (3) respectively and are linked together its characterized in that with the inner chamber of handling pond (3): a first baffle (4), a second baffle (11) and a third baffle (12) are sequentially arranged in the treatment tank (3), and overflow ports are formed in the top ends of the first baffle (4), the second baffle (11) and the third baffle (12); the first baffle (4) is positioned on one side of the water inlet pipe (1), the third baffle (12) is positioned on one side of the water outlet pipe (9), and heat exchange pipelines (10) are arranged inside the treatment tank (3) on one side, far away from the second baffle (11), of the first baffle (4) in a staggered mode; an aeration mechanism (5) is arranged in the treatment tank (3) between the first baffle (4) and the second baffle (11); a filtering mechanism (7) is arranged in the treatment tank (3) between the second baffle (11) and the third baffle (12); an ozone net pipe (13) is arranged in the treatment pool (3) on one side of the third baffle plate (12) far away from the second baffle plate (11); a first water guide pipe (6) is arranged at an overflow port of one side, close to the water outlet pipe (9), of the second baffle plate (11), and the bottom end of the first water guide pipe (6) penetrates through the filtering mechanism (7) and extends to the lower part of the filtering mechanism (7); a second water guide pipe (8) is arranged at an overflow port of one side of the third baffle plate (12) close to the water outlet pipe (9), and the bottom end of the second water guide pipe (8) extends to the lower part of the ozone net pipe (13);

the aeration mechanism (5) at least comprises three groups of stirring blades (501), an air pump (502), a sealing seat (503), a driving motor (504) and a rotating shaft (505); the air pump (502) and the air pump (502) are both positioned on the outer side wall of the treatment pool (3) between the first baffle (4) and the second baffle (11), and the output end of the air pump (502) is communicated with the sealing seat (503); the driving motor (504) is positioned at one end of the sealing seat (503) far away from the treatment pool (3), and the output end of the driving motor (504) extends into the sealing seat (503); the rotating shaft (505) is rotatably connected between the inner walls of the treatment pool (3), the setting direction of the rotating shaft (505) is consistent with the directions of the first baffle (4) and the second baffle (11), one end of the rotating shaft (505) extends to the center of an external sealing seat (503) of the treatment pool (3), through holes (507) are uniformly formed in the rotating shaft (505) in the sealing seat (503), and one end of the rotating shaft (505) in the sealing seat (503) is fixedly connected with the output end of the driving motor (504); the stirring blades (501) are arranged on the outer surface of the rotating shaft (505) at equal intervals, and the stirring blades (501) are uniformly provided with aeration heads (506).

2. The thermal power plant wastewater treatment apparatus according to claim 1, characterized in that: the top end of the treatment tank (3) right above the aeration mechanism (5) is provided with an opening, and activated sludge is paved in the treatment tank (3) right below the aeration mechanism (5).

3. The thermal power plant wastewater treatment apparatus according to claim 1, characterized in that: the number of the stirring blades (501) in each group is at least 2.

4. The thermal power plant wastewater treatment apparatus as set forth in any one of claims 1 to 3, wherein: and sealing rings are arranged on the contact surfaces of the sealing seat (503), the output shaft of the driving motor (504) and the rotating shaft (505).

5. The thermal power plant wastewater treatment apparatus as set forth in any one of claims 1 to 3, wherein: the aeration head (506) adopts a one-way water-blocking aeration head.

6. The thermal power plant wastewater treatment apparatus according to claim 1, characterized in that: the filtering mechanism (7) is composed of four layers of filtering plates, and fillers in the four layers of filtering plates are crushed quartz stone, coal dust, magnetite filter material and activated carbon particles from bottom to top respectively.

7. The thermal power plant wastewater treatment apparatus according to claim 1, characterized in that: one end of the heat exchange pipeline (10) is connected with a cold water inlet pipe, and the other end of the heat exchange pipeline is connected with a dust removal flushing water pipe of a thermal power plant.

8. The thermal power plant wastewater treatment apparatus according to claim 7, characterized in that: the section of the heat exchange pipeline (10) is of a triangular structure, and the tip end of the heat exchange pipeline (10) faces upwards; the top end of the treatment pool (3) above the heat exchange pipeline (10) is provided with a bin gate (2).