CN112387012B - Waste emulsion system of power station pulverized coal boiler and steam-water separation method thereof - Google Patents
Waste emulsion system of power station pulverized coal boiler and steam-water separation method thereof Download PDFInfo
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- CN112387012B CN112387012B CN201910743169.9A CN201910743169A CN112387012B CN 112387012 B CN112387012 B CN 112387012B CN 201910743169 A CN201910743169 A CN 201910743169A CN 112387012 B CN112387012 B CN 112387012B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/06—Flash evaporation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C7/00—Combustion apparatus characterised by arrangements for air supply
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a waste emulsion system of a pulverized coal boiler of a power station and a steam-water separation method thereof, wherein the waste emulsion system comprises a waste emulsion storage tank, a waste emulsion sewage pool and a steam-water separator; the waste emulsion storage tank top even has the exhaust pipe way, and waste emulsion effluent water sump top even has exhaust vent pipe way, and the exhaust pipe way is linked together the back with exhaust vent pipe way, inserts catch water, and the steam drain at catch water top leads to the unit forced draught blower through the exhaust pipe way, and the outlet of catch water bottom passes through drainage pipe and waste emulsion effluent water sump intercommunication. The invention carries out steam-water separation on flash steam generated in the operation of the waste emulsion combustion system, carries out environment-friendly treatment on the liquid part through recovery, discharges the gas part to a boiler air supply system, enters a hearth, and carries out high-temperature combustion decomposition, thereby having great environmental benefit.
Description
Technical Field
The invention relates to a waste emulsion system of a pulverized coal boiler of a power station, in particular to a waste emulsion system of a pulverized coal boiler of a power station and a steam-water separation method thereof.
Background
In the existing combustion system of waste emulsion (the main components of the waste emulsion are water, mechanical impurities, base oil (mineral oil, vegetable oil and synthetic oil), fatty acid, surfactant, anticorrosive agent, various additives and the like) suitable for a pulverized coal boiler of a power station, the untreated waste emulsion is stored in a waste emulsion tank, the waste emulsion is heated by a heater at the bottom of the waste emulsion tank, the temperature required by the obtained waste emulsion entering the boiler for combustion is generally between 60 and 70 ℃, partial flash steam is generated after the waste emulsion is heated, and the partial steam carries the components of the partial waste emulsion, mainly volatile substances in the contained base oil, and is dispersed into the atmosphere through a breathing hole at the top of the waste emulsion tank to cause local regional peculiar smell.
Meanwhile, in the operation of the waste emulsion combustion system, the waste emulsion pump inlet filter screen needs to be swept discontinuously, in the sweeping process, the sweeping steam is in direct contact with the waste emulsion on the surface of the filter screen, and the waste emulsion is discharged into the waste emulsion pollution discharge pool after sweeping.
The existing waste emulsion combustion system has no special treatment technology for the generated flash steam with peculiar smell in the two conditions during operation, and the steam after escaping into the atmosphere is condensed and adhered to peripheral equipment or soil to cause secondary pollution to the environment, so that a set of device and process capable of treating the flash steam generated during the operation of the waste emulsion combustion system is designed, and the process is not slow.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a waste emulsion system of a pulverized coal boiler of a power station and a steam-water separation method thereof, wherein the steam-water separation is carried out on flash steam generated in the operation of a waste emulsion combustion system, the liquid part is subjected to environment-friendly treatment through recovery, and the gas part is discharged to a boiler air supply system and enters a hearth for high-temperature combustion decomposition, so that the waste emulsion system has great environmental benefit.
In order to achieve the purpose, the invention adopts the following technical scheme:
on the one hand, the waste emulsion system of the pulverized coal fired boiler of the power station comprises a waste emulsion storage tank, a waste emulsion sewage tank and a steam-water separator;
the waste emulsion storage tank top even has the exhaust pipe way, and waste emulsion effluent water sump top even has exhaust hole pipeline, and the exhaust pipe way is linked together the back with exhaust hole pipeline, inserts catch water, and the steam drain at catch water top leads to the unit forced draught blower through the exhaust pipe way, and drainage pipe and waste emulsion effluent water sump intercommunication are passed through to the outlet of catch water bottom.
And a steam heating coil is arranged in the waste emulsion storage tank.
And a drain valve is arranged on the drainage pipeline.
And a filter screen is arranged on a waste emulsion inlet of the waste emulsion storage tank.
On the other hand, the steam-water separation method of the waste emulsion of the pulverized coal boiler of the power station comprises the following steps:
after the waste emulsion in the waste emulsion storage tank is subjected to preheating treatment by a steam heating coil, generated flash steam is converged with flash steam generated in a waste emulsion sewage tank through a steam exhaust pipeline and an exhaust hole pipeline and then enters a steam-water separator;
after the flash steam is centrifugally separated from the steam by the interior of the steam-water separator, the separated liquid flows into the lower part of the steam-water separator and is discharged to a waste emulsion sewage tank through a drain valve, and the steam is led to a unit blower from a steam discharge pipeline at the top of the steam-water separator.
The waste emulsion system of the pulverized coal boiler of the power station and the steam-water separation method thereof provided by the invention also have the following beneficial effects:
1) the waste emulsion system carries out steam-water separation on the flash steam, so that the current situation that regional peculiar smell is generated due to the emission of the original flash steam is eliminated;
2) the waste emulsion system 2 of the invention reflows the liquid separated by the steam-water separation device to the waste emulsion tank again, thus being convenient for centralized environmental protection disposal.
Drawings
FIG. 1 is a block diagram of the waste emulsion system of the present invention.
Detailed Description
The technical scheme of the invention is further explained by combining the drawings and the embodiment.
Referring to fig. 1, the waste emulsion system of a pulverized coal fired boiler in a power plant according to the present invention includes a waste emulsion storage tank 1, a waste emulsion sewage tank 2, and a steam-water separator 3.
Preferably, the top of the waste emulsion storage tank 1 is connected with an exhaust pipeline 4, the top of the waste emulsion sewage tank 2 is connected with an exhaust pipeline 5, the exhaust pipeline is communicated with the exhaust pipeline and converged, then the steam separator 3 is connected, a steam exhaust hole in the top of the steam separator 3 leads to a unit blower through an exhaust pipeline 6, and a water outlet in the bottom of the steam separator 3 is communicated with the waste emulsion sewage tank 2 through a water outlet pipe 7.
The preferred, 1 inside steam heating coil 8 that is equipped with of waste emulsion storage tank, steam heating coil 8 gets high-temperature steam from the unit steam assisted header, and high-temperature steam flows through to be arranged in 1 inside steam heating coil 8 of waste emulsion storage tank and heats abandonment emulsion, and the period is because abandonment emulsion temperature is improved, and the steam vent 4 that the flash distillation steam of production passes through 1 top of waste emulsion storage tank gets into catch water 3.
Preferably, the useless emulsion blowdown pond 2 mainly used storage useless emulsion system filter screen in service sweeps the in-process, and produced blowdown that sweeps is the mixture that contains all kinds of impurity and steam in the useless emulsion, because by steam heating at the in-process that sweeps, forms flash steam in useless emulsion blowdown pond 2, through the exhaust vent pipe way 5 at 2 tops of useless emulsion blowdown pond, gets into catch water 3.
Preferably, the flash steam generated in the waste emulsion storage tank 1 and the waste emulsion pollution discharge tank 2 enters the steam-water separator 3 through respective discharge pipelines, and moves in a centrifugal downward inclined manner in the steam-water separator 3, the entrained moisture is separated due to the reduction of speed, the separated liquid flows into the lower part, and is discharged to the waste emulsion pollution discharge tank 2 through the drain valve 9, and the dry and clean steam is discharged to the unit fan from the steam discharge pipeline 6 at the top of the steam-water separator 3 through unified recovery processing.
Preferably, a filter screen 10 is arranged on a waste emulsion inlet of the waste emulsion storage tank 1.
The invention also provides a steam-water separation method of the waste emulsion of the pulverized coal boiler of the power station, which comprises the following steps:
after preheating treatment is carried out on the waste emulsion in the waste emulsion storage tank 1 through the steam heating coil 4, generated flash steam and flash steam generated in the waste emulsion sewage pool 2 are converged through the steam exhaust pipeline 4 and the steam exhaust pipeline 5 and then enter the steam-water separator 3;
After the flash steam is centrifugally separated from the steam by the interior of the steam-water separator 3, the separated liquid flows into the lower part of the steam-water separator 3 and is discharged to the waste emulsion sewage tank 2 through the drain valve 9, and the steam is led to a unit blower from a steam discharge pipeline 6 at the top of the steam-water separator 3.
The baffling type structure of the principle of the steam-water separator 3 has the advantages that the number of the baffles is large, the fluid flows in a multi-directional conversion manner, the number of the separated small molecular droplets is large, the internal space is large, and the flow speed is reduced, so that the small molecular droplets have enough time to be condensed into larger droplets, and the droplets are not taken away again by the steam to form secondary steam. Due to the different specific gravity, the large liquid drops fall to the bottom and are discharged by a drain valve.
In conclusion, the waste emulsion system of the pulverized coal boiler of the power station and the steam-water separation method thereof enable flash steam generated in the storage and heating process of the waste emulsion and the washing process of the emulsion filter screen to be properly treated, and prevent the flash steam from being directly discharged to the atmosphere to generate regional peculiar smell.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (3)
1. A steam-water separation method for a waste emulsion device of a power station pulverized coal boiler is characterized by comprising the following steps: comprises a waste emulsion storage tank, a waste emulsion sewage tank and a steam-water separator;
the top of the waste emulsion storage tank is connected with an exhaust pipeline, the top of the waste emulsion sewage pool is connected with an exhaust hole pipeline, the exhaust pipeline is connected with the exhaust hole pipeline and then connected with a steam-water separator, a steam exhaust hole at the top of the steam-water separator is led to a unit blower through the exhaust pipeline, a water outlet at the bottom of the steam-water separator is communicated with the waste emulsion sewage pool through a water exhaust pipeline,
a steam heating coil is arranged in the waste emulsion storage tank,
after the waste emulsion in the waste emulsion storage tank is subjected to preheating treatment by a steam heating coil, generated flash steam is converged with flash steam generated in a waste emulsion sewage tank through a steam exhaust pipeline and an exhaust hole pipeline and then enters a steam-water separator;
after the flash steam is centrifugally separated from the steam by the interior of the steam-water separator, the separated liquid flows into the lower part of the steam-water separator and is discharged to a waste emulsion sewage pool through a drain valve, and the steam is led to a unit blower from a steam discharge pipeline at the top of the steam-water separator,
steam-water separation is carried out on the flash steam, and the gas is partially discharged to a boiler air supply system and enters a hearth for high-temperature combustion and decomposition, so that the current situation that the original flash steam is discharged to cause the generation of regional peculiar smell is eliminated.
2. The steam-water separation method of the waste emulsion device of the pulverized coal boiler of the power station as claimed in claim 1, characterized in that: and a drain valve is arranged on the drainage pipeline.
3. The steam-water separation method of the waste emulsion device of the pulverized coal boiler of the power station as claimed in claim 1, characterized in that: and a filter screen is arranged on a waste emulsion inlet of the waste emulsion storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910743169.9A CN112387012B (en) | 2019-08-13 | 2019-08-13 | Waste emulsion system of power station pulverized coal boiler and steam-water separation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910743169.9A CN112387012B (en) | 2019-08-13 | 2019-08-13 | Waste emulsion system of power station pulverized coal boiler and steam-water separation method thereof |
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| CN112387012A CN112387012A (en) | 2021-02-23 |
| CN112387012B true CN112387012B (en) | 2022-06-28 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060054307A (en) * | 2003-07-12 | 2006-05-22 | 어드밴스드 페이즈 세퍼레이션, 엘엘씨 | Multi-phase separation system |
| CN102874967A (en) * | 2011-06-22 | 2013-01-16 | 通用电气公司 | Monitoring and control of unit operations for generating steam from produced water |
| CN106237941A (en) * | 2015-07-16 | 2016-12-21 | 中国石油天然气股份有限公司 | Gas-liquid separation device and separation liquid recovery method |
| CN106268122A (en) * | 2015-06-25 | 2017-01-04 | 宝山钢铁股份有限公司 | A kind of cold-rolling emulsion device for purifying gas with peculiar smell and method |
| WO2017078146A1 (en) * | 2015-11-05 | 2017-05-11 | 株式会社 東芝 | System for recovering water vapor in electrical power generation exhaust gas, thermal power generation system, and method for recovering water vapor in electrical power generation exhaust gas |
| CN109458621A (en) * | 2017-09-06 | 2019-03-12 | 宝山钢铁股份有限公司 | A kind of waste emulsion liquid processing system based on pulverized coal power boiler |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8721771B2 (en) * | 2011-01-21 | 2014-05-13 | Heartland Technology Partners Llc | Condensation plume mitigation system for exhaust stacks |
| CA2789820C (en) * | 2012-09-13 | 2019-11-26 | General Electric Company | Treatment of produced water concentrate |
| CN203474564U (en) * | 2013-09-13 | 2014-03-12 | 江苏法尔胜技术开发中心有限公司 | Separation device for treating waste emulsion |
| CN203904135U (en) * | 2014-06-25 | 2014-10-29 | 苏州帝瀚环保科技有限公司 | Low-temperature separation system for waste emulsified oil |
| CN109453558A (en) * | 2017-09-06 | 2019-03-12 | 宝山钢铁股份有限公司 | A kind of filtering sweeping control equipment of waste emulsion liquid processing system |
| CN109455860A (en) * | 2017-09-06 | 2019-03-12 | 宝山钢铁股份有限公司 | A kind of waste emulsion liquid processing system with foul smell collector |
| CN109111009A (en) * | 2018-09-30 | 2019-01-01 | 杭州天蓝净环保科技有限公司 | A kind of desulfurization wastewater technique of zero discharge and device |
| CN209098416U (en) * | 2018-10-10 | 2019-07-12 | 张家港市骏马钢帘线有限公司 | Waste emulsified mixture processing unit |
| CN110028186B (en) * | 2019-02-28 | 2022-03-11 | 苏州希图环保科技有限公司 | High-efficiency treatment process for high-concentration emulsion |
-
2019
- 2019-08-13 CN CN201910743169.9A patent/CN112387012B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060054307A (en) * | 2003-07-12 | 2006-05-22 | 어드밴스드 페이즈 세퍼레이션, 엘엘씨 | Multi-phase separation system |
| CN102874967A (en) * | 2011-06-22 | 2013-01-16 | 通用电气公司 | Monitoring and control of unit operations for generating steam from produced water |
| CN106268122A (en) * | 2015-06-25 | 2017-01-04 | 宝山钢铁股份有限公司 | A kind of cold-rolling emulsion device for purifying gas with peculiar smell and method |
| CN106237941A (en) * | 2015-07-16 | 2016-12-21 | 中国石油天然气股份有限公司 | Gas-liquid separation device and separation liquid recovery method |
| WO2017078146A1 (en) * | 2015-11-05 | 2017-05-11 | 株式会社 東芝 | System for recovering water vapor in electrical power generation exhaust gas, thermal power generation system, and method for recovering water vapor in electrical power generation exhaust gas |
| CN109458621A (en) * | 2017-09-06 | 2019-03-12 | 宝山钢铁股份有限公司 | A kind of waste emulsion liquid processing system based on pulverized coal power boiler |
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| CN112387012A (en) | 2021-02-23 |
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