CN212050618U - Concentrated decrement energy-concerving and environment-protective device of high chlorine waste water - Google Patents
Concentrated decrement energy-concerving and environment-protective device of high chlorine waste water Download PDFInfo
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- CN212050618U CN212050618U CN202020768549.6U CN202020768549U CN212050618U CN 212050618 U CN212050618 U CN 212050618U CN 202020768549 U CN202020768549 U CN 202020768549U CN 212050618 U CN212050618 U CN 212050618U
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Abstract
The utility model discloses an energy-concerving and environment-protective device of concentrated decrement of high chlorine waste water, including a concentration tower, concentration tower bottom is provided with the circulation thick liquid jar that is used for storing high chlorine waste water, and concentration tower circulation thick liquid jar top is the air inlet of concentration tower, and concentration tower air inlet top is provided with the spray set that at least one deck sprayed high chlorine waste water, and concentration tower high chlorine waste water spray set top is provided with at least one deck defogging device, the anti-thin out film of defrosterThe flushing device is provided with a multi-layer demister backwashing device, the utility model has the functions of evaporating water in the high-chlorine wastewater by using low-temperature flue gas waste heat and concentrating and reducing the high-chlorine wastewater; has the advantages of reducing the temperature of the flue gas at the inlet of the desulfurization absorption tower and being beneficial to SO2The absorption of (2) and the function of improving the desulfurization efficiency.
Description
Technical Field
The utility model relates to an environmental protection technology field specifically is a concentrated decrement energy-concerving and environment-protective device of high chlorine waste water.
Background
With the increasingly strict requirements of the country on environmental protection, the power plant is required to realize zero discharge of wastewater, the existing water-saving measures and wastewater treatment measures of the thermal power plant gradually show limitations, and some problems are exposed, for example, the concentration ratio of the cooling tower is too low to meet the water-saving requirement, part of high-quality water sources cannot be effectively recycled, the treatment effect of the wastewater treatment system is unstable, the wastewater production amount is large, and the difficulty in realizing zero discharge of wastewater is high. The thermal power plant realizes zero discharge of wastewater, and a water balance system for zero discharge of wastewater of the whole plant is urgently needed to be established, so that the water flow of the whole plant is optimized, the recovery and utilization rate of wastewater is improved, the wastewater quantity is greatly reduced, and favorable conditions are created for realizing zero discharge of wastewater. The utility model relates to an utilize low temperature flue gas waste heat to the concentrated energy-concerving and environment-protective device of decrement of high chlorine waste water of thermal power plant is the important equipment that thermal power plant realized waste water "zero release", has great meaning.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a concentrated decrement energy-concerving and environment-protective device of high chlorine waste water to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a high-chlorine wastewater concentration and reduction energy-saving environment-friendly device comprises a concentration tower, wherein a circulating slurry tank for storing high-chlorine wastewater is arranged at the bottom of the concentration tower, an air inlet of the concentration tower is arranged above the circulating slurry tank of the concentration tower, at least one layer of spray device for spraying the high-chlorine wastewater is arranged above the air inlet of the concentration tower, at least one layer of demisting device is arranged above the high-chlorine wastewater spray device of the concentration tower, the demisting device is provided with a multi-layer demister backwashing device, an exhaust port of the concentration tower is arranged above the demister backwashing device, a side-entry stirrer is arranged on the side wall of the circulating slurry tank of the concentration tower, the circulating slurry tank of the concentration tower is connected with a concentrated solution outward-discharging pump through a pipeline, the concentrated solution outward-discharging pump is connected with a subsequent concentrated solution treatment system through a pipeline, the demister backwashing device is connected with a high-chlorine wastewater feed pump through a pipeline, and the high-chlorine wastewater feed pump is connected with a high-chlorine wastewater storage tank through a pipeline.
As a further technical solution of the present invention: and a demister backwashing device, a spraying device and a concentration tower air inlet are sequentially arranged between the circulating slurry tank and the concentration tower air outlet from top to bottom.
As a further technical solution of the present invention: the demister backwashing water is from high chlorine wastewater.
As a further technical solution of the present invention: the spray pipe of the spray device is made of glass fiber reinforced plastic, and the nozzle is made of silicon carbide.
As a further technical solution of the present invention: the defogging device is made of glass fiber reinforced plastic or polypropylene.
As a further technical solution of the present invention: the concentrating tower shell is integrally made of glass fiber reinforced plastic materials or a carbon steel shell and an inner lining anti-corrosion layer, the carbon steel shell plays a role in guaranteeing structural strength, the inner lining anti-corrosion layer can avoid corrosion damage of media in the concentrating tower to the carbon steel shell, different anti-corrosion materials are adopted at different parts of the inner lining anti-corrosion layer of the carbon steel shell, a dry interface and a wet interface are anti-corrosion by adopting a hastelloy C steel plate with the thickness of-mm, and other parts are anti-corrosion by adopting lining magnets or glass flakes with the thickness of-mm.
As a further technical solution of the present invention: blades, shafts and other parts of the concentration tower side-feeding stirrer contacting with the alkali liquor are subjected to magnetic lining corrosion prevention by carbon steel, or hydraulic stirring is adopted to replace side-feeding stirring.
As a further technical solution of the present invention: the connecting pipeline for conveying slurry among all the components of the concentration tower adopts a glass reinforced plastic pipe, a carbon steel plastic-lined pipe or a carbon steel rubber-lined pipe.
Compared with the prior art, the utility model is beneficialThe effect is as follows: the utility model has the function of evaporating the water in the high-chlorine wastewater by utilizing the low-temperature flue gas waste heat, and concentrating and reducing the high-chlorine wastewater; has the advantages of reducing the temperature of the flue gas at the inlet of the desulfurization absorption tower and being beneficial to SO2The absorption of (2) and the function of improving the desulfurization efficiency.
Drawings
FIG. 1 is a block diagram of the present invention;
in the figure: the system comprises a concentration tower-1, a concentration tower circulating slurry tank-2, a concentration tower air inlet-3, a spray device-4, a demisting device-5, a demister backwashing device-6, a concentration tower exhaust port-7, a side-feeding stirrer-8, a concentrated liquid discharge pump-9, a concentrated liquid circulating pump-10, a high-chlorine wastewater feed pump-11 and a high-chlorine wastewater storage tank-12.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, embodiment 1: a high chlorine waste water concentration and decrement energy-saving environment-friendly device comprises a concentration tower 1, wherein a circulating slurry tank 2 used for storing high chlorine waste water is arranged at the bottom of the concentration tower 1, a gas inlet 3 of the concentration tower is arranged above the circulating slurry tank 2 of the concentration tower, at least one layer of spray device 4 for spraying high chlorine waste water is arranged above the gas inlet 3 of the concentration tower, at least one layer of demisting device 5 is arranged above the high chlorine waste water spray device of the concentration tower, the demisting device 5 is provided with a multilayer demister backwashing device 6, a gas outlet 7 of the concentration tower is arranged above the demister backwashing device 6, a side-entering stirrer 8 is arranged on the side wall of the circulating slurry tank 2 of the concentration tower, the circulating slurry tank 2 of the concentration tower is connected with a concentrated solution outward-discharging pump 9 through a pipeline, the concentrated solution outward-discharging pump 9 is connected with a subsequent concentrated solution treatment system through a pipeline, the circulating slurry tank 2, the concentrated solution circulating pump 10 is connected with the spraying device 4 through a pipeline, the demister backwashing device 6 is connected with a high-chlorine wastewater feed pump 11 through a pipeline, and the high-chlorine wastewater feed pump 11 is connected with a high-chlorine wastewater storage tank 12 through a pipeline.
The high-chlorine wastewater circulating slurry flows through the concentrating tower circulating slurry tank 2, the pipeline, the concentrated solution circulating pump 10, the pipeline and the spraying device 4 to circularly and repeatedly spray and cool the flue gas entering from the gas inlet 3 in the concentrating tower 1, after the flue gas contacts with the high-chlorine wastewater circulating slurry sprayed from the spraying device 4, the high-chlorine wastewater circulating slurry absorbs the heat of the flue gas to evaporate part of water in the flue gas into water vapor and mix the water vapor with the flue gas, the temperature and the humidity of the flue gas are reduced and increased, continuously rises in the concentration tower 1, and after the fog drops of the high-chlorine wastewater circulating slurry carried in the flue gas are removed by the demisting device 5 of the concentration tower, the exhaust gas is discharged from the exhaust port 7 of the concentration tower, and the discharged flue gas is low-temperature high-humidity flue gas, so that the desulfurization efficiency of a subsequent desulfurization absorption tower is favorably improved, and the moisture content of the flue gas at the outlet of the absorption tower is favorably reduced.
And the functional partition of the concentration tower 1 from bottom to top is the storage of the high chlorine wastewater circulating slurry at the lower part, the low-temperature flue gas intake at the middle part, the evaporation concentration of the high chlorine wastewater circulating slurry at the middle upper part, the demisting at the upper part and the exhaust at the top part, and the whole process is completed in the concentration tower 1 through the functional partition from bottom to top.
In example 2, demister backwash water is derived from high-chlorine wastewater in addition to example 1, and the high-chlorine wastewater washes the demister and then falls down in the concentration tower, and is stored in the concentration tower slurry circulation tank as a raw material water with a reduced amount of concentration. The spray pipe of the high-chlorine wastewater spray device is made of glass fiber reinforced plastic, and the nozzle is made of silicon carbide. The demister adopts Fiberglass Reinforced Plastic (FRP) or polypropylene (PP) material demister back flush device's shower adopts polypropylene (PP) material, and the nozzle adopts polypropylene (PP) material. The shell of the concentration tower is integrally made of glass Fiber Reinforced Plastic (FRP) materials or a carbon steel shell and an inner lining anticorrosive coating, the carbon steel shell plays a role in ensuring the structural strength, the inner lining anticorrosive coating can avoid the medium in the concentration tower from corroding and damaging the carbon steel shell, different anticorrosive materials are adopted at different parts of the inner lining anticorrosive coating in the carbon steel shell, a dry interface and a wet interface are anticorrosive by adopting a Hastelloy C276 steel plate with the inner lining thickness of 1-4mm, and other parts are anticorrosive by adopting the lining magnet or glass flakes with the thickness of 2-6 mm. The blades and shafts of the side-feeding stirrer of the concentration tower are contacted with alkali liquor by adopting carbon steel for magnetic lining corrosion prevention or adopting hydraulic stirring to replace side-feeding stirring. The connecting pipeline for conveying slurry among all the components of the concentration tower adopts a glass steel pipe or a carbon steel plastic-lined pipe or a carbon steel rubber-lined pipe.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. A high chlorine waste water concentration and decrement energy-saving environment-friendly device comprises a concentration tower (1), and is characterized in that a circulating slurry tank (2) for storing high chlorine waste water is arranged at the bottom of the concentration tower (1), a gas inlet (3) of the concentration tower is arranged above the circulating slurry tank (2) of the concentration tower, at least one layer of spray device (4) for spraying high chlorine waste water is arranged above the gas inlet (3) of the concentration tower, at least one layer of demisting device (5) is arranged above the high chlorine waste water spray device of the concentration tower, the demisting device (5) is provided with a multilayer demister backwashing device (6), a gas outlet (7) of the concentration tower is arranged above the demister backwashing device (6), a side-in type stirrer (8) is arranged on the side wall of the circulating slurry tank (2) of the concentration tower, the circulating slurry tank (2) of the concentration tower is connected with a concentrated liquid outward-discharging pump (9) through a pipeline, the concentrated tower circulating slurry tank (2) is connected with a concentrated solution circulating pump (10) through a pipeline, the concentrated solution circulating pump (10) is connected with a spraying device (4) through a pipeline, a demister backwashing device (6) is connected with a high-chlorine wastewater feed pump (11) through a pipeline, and the high-chlorine wastewater feed pump (11) is connected with a high-chlorine wastewater storage tank (12) through a pipeline.
2. The energy-saving and environment-friendly device for concentrating and reducing high-chlorine wastewater as claimed in claim 1, wherein a demister backwashing device (6), a spraying device (4) and a concentrating tower air inlet (3) are sequentially arranged between the circulating slurry tank (2) and the concentrating tower air outlet (7) from top to bottom.
3. The energy-saving and environment-friendly device for concentration and reduction of high-chlorine wastewater as claimed in claim 1, wherein demister backwashing water is derived from the high-chlorine wastewater.
4. The energy-saving and environment-friendly device for concentrating and reducing high-chlorine wastewater as claimed in claim 1, wherein a spray pipe of the spray device (4) is made of glass fiber reinforced plastic, and a nozzle is made of silicon carbide.
5. The energy-saving and environment-friendly device for concentrating and reducing high-chlorine wastewater as claimed in any one of claims 1 to 4, wherein the demisting device (5) is made of glass fiber reinforced plastic or polypropylene.
6. The energy-saving and environment-friendly device for concentration and decrement of high-chlorine wastewater as claimed in claim 1, wherein the shell of the concentration tower (1) is made of glass fiber reinforced plastic or a carbon steel shell and a lining corrosion-resistant layer, the carbon steel shell plays a role in ensuring structural strength, the lining corrosion-resistant layer can prevent the carbon steel shell from being corroded and damaged by media in the concentration tower, different corrosion-resistant materials are adopted at different parts of the lining corrosion-resistant layer in the carbon steel shell, a hastelloy C276 steel plate with the thickness of 1-4mm is adopted at a dry-wet interface for corrosion prevention, and the magnetic lining or glass corrosion-resistant scale with the thickness of 2-6mm is adopted at other parts.
7. The energy-saving and environment-friendly device for concentration and reduction of high-chlorine wastewater as claimed in claim 1, wherein the blades and the shaft of the side-feeding agitator of the concentration tower are magnetically lined with carbon steel to prevent corrosion, or hydraulic agitation is used to replace side-feeding agitation.
8. The energy-saving and environment-friendly device for concentrating and reducing high-chlorine wastewater as claimed in claim 1, wherein the connecting pipeline for conveying slurry among the components of the concentrating tower (1) adopts a glass reinforced plastic pipe, a carbon steel plastic lined pipe or a carbon steel rubber lined pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020768549.6U CN212050618U (en) | 2020-05-11 | 2020-05-11 | Concentrated decrement energy-concerving and environment-protective device of high chlorine waste water |
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| CN202020768549.6U CN212050618U (en) | 2020-05-11 | 2020-05-11 | Concentrated decrement energy-concerving and environment-protective device of high chlorine waste water |
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| CN212050618U true CN212050618U (en) | 2020-12-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113582281A (en) * | 2021-08-11 | 2021-11-02 | 成都市蜀科科技有限责任公司 | Energy-saving low-temperature flue gas concentration process and device for desulfurization wastewater |
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2020
- 2020-05-11 CN CN202020768549.6U patent/CN212050618U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113582281A (en) * | 2021-08-11 | 2021-11-02 | 成都市蜀科科技有限责任公司 | Energy-saving low-temperature flue gas concentration process and device for desulfurization wastewater |
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