CN108954277A - One kind is with ball mill pulverized coal preparation system and utilizes flue gas dewatered sludge coupled electricity-generation system - Google Patents
One kind is with ball mill pulverized coal preparation system and utilizes flue gas dewatered sludge coupled electricity-generation system Download PDFInfo
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- CN108954277A CN108954277A CN201810886528.1A CN201810886528A CN108954277A CN 108954277 A CN108954277 A CN 108954277A CN 201810886528 A CN201810886528 A CN 201810886528A CN 108954277 A CN108954277 A CN 108954277A
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- sludge
- flue gas
- dewatered sludge
- boiler
- drying machine
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/10—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with one or a few disintegrating members arranged in the container
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- 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
- F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
- F23C9/06—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for completing combustion
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Food Science & Technology (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses one kind with ball mill pulverized coal preparation system and to utilize flue gas dewatered sludge coupled electricity-generation system, including drying machine, dewatered sludge warehouse and boiler etc.；Wherein, drying machine for the dewatered high moisture sluge of sewage treatment plant is dehydrated, desiccation, the outlet of drying machine is connected to the entrance of dewatered sludge warehouse, the outlet of dewatered sludge warehouse and the outlet of coal bunker are connected to the position of addition steel ball at the top of low speed coal mill, the outlet of low speed coal mill is connected to boiler furnace, desiccation heat source needed for the high-temperature flue gas at position is used to provide to drying machine between boiler economizer and air preheater.The present invention enters sludge drier by extracting high temperature flue-gas from boiler, dewatered sludge, reduction moisture percentage in sewage sludge in drying machine, sludge after drying be sent directly into powder processed in low speed coal mill, it is dry after flue gas be sent directly into boiler furnace burning, solve the problems, such as the pollutant process discharged in mud drying process while realizing sludge drying coupled electricity-generation.
Description
Technical field
The invention belongs to high moisture sluge desiccation coupled electricity-generation technical fields, and in particular to one kind matches ball mill pulverized coal preparation system
And utilize flue gas dewatered sludge coupled electricity-generation system.
Background technique
With the quickening of China's industrial expansion and urbanization process, the raising for the treatment of rate of domestic sewage is produced a large amount of
Sludge.Sludge is that a kind of property is complicated, pollutant load is high, the huge pollutant of Potential environmental risk, is the liquid of high-moisture percentage
Gu substance contains a large amount of pathogen, parasitic ovum, the heavy metals poisonous and harmful substance such as Yi Jige, mercury.Sludge serious shadow
The production and living for having rung people cause serious pollution to environment, and municipal sludge processing problem has become today's society urgently
The big the difficult problem of environmental protection solved.
The odor pollution air that sludge distributes, pathogen generate potential threat, heavy metal and poisonous and harmful to human health
Organic pollution earth's surface and ground water regime.Due to starting late for domestic specific resistance to filtration, many cities are not by sludge
Overall city planning is included in disposal site, and many treatment plants is caused to be difficult to find that suitable sludge disposal method and sludge throw aside field
Institute；The weak foundation that China's sludge utilizes, there are wretched insufficiencies to the understanding that sludge utilizes by people, ask the final disposal of sludge
Topic lacks concern, leaves hidden danger to the final disposal of some harmful sludge；The utilization rate of sludge be not it is very high, still some
Sewage plant sludge only through storage i.e. by environmental sanitation department outward transport suburbs directly stack, especially domestic some Shelter in South China Cities are much adopted
In this way.
Mud-type fuel coal coupled electricity-generation is the approach for effectively solving municipal sludge processing problem, National Energy Board and environment
Protection portion proposes in " about the notice for carrying out coal-fired coupled biological matter power generation technological transformation pilot work ": with emphasis on municipality directly under the Central Government, saving
36 key cities such as meeting city, cities specifically designated in the state plan and rubbish, sludge yield are big, and land use is more difficult or space is limited,
Area based on landfill stabilization, it is preferential to choose cogeneration of heat and power coal motor group, it is laid out coal-fired coupling rubbish and sludge power generation technological transformation
Project.
Summary of the invention
The present invention is directed to the fired power generating unit with ball mill pulverized coal preparation system, provides one kind with ball mill pulverized coal preparation system and utilizes
Flue gas dewatered sludge coupled electricity-generation system enters sludge drier by extracting high temperature flue-gas from boiler, the desiccation in drying machine
Sludge reduces moisture percentage in sewage sludge, it is dry after sludge be sent directly into powder processed in low speed coal mill, it is dry after flue gas be sent directly into
Boiler furnace burning, solves the pollutant process discharged in mud drying process while realizing sludge drying coupled electricity-generation
Problem.The system is simple and efficient, and easily carries out the system integration with fired power generating unit.
The present invention adopts the following technical scheme that realize:
One kind is with ball mill pulverized coal preparation system and utilizes flue gas dewatered sludge coupled electricity-generation system, including drying machine, desiccation dirt
Mud warehouse, low speed coal mill, coal bunker, boiler and air preheater；Wherein,
Drying machine for being dehydrated to the dewatered high moisture sluge of sewage treatment plant, desiccation, the outlet of drying machine connects
It is connected to the entrance of dewatered sludge warehouse, the outlet of dewatered sludge warehouse and the outlet of coal bunker, which are connected at the top of low speed coal mill, to be added
Add the position of steel ball, the outlet of low speed coal mill is connected to boiler furnace, position between boiler economizer and air preheater
Desiccation heat source needed for high-temperature flue gas is used to provide to drying machine.
A further improvement of the present invention lies in that further include sewage sludge feed spiral, it is dry for high moisture sluge to be quantified feeding
Dry machine.
A further improvement of the present invention lies in that further include cyclone separator, for for the sludge after desiccation with dry cigarette
Gas separation, the particle separated are stored in dewatered sludge warehouse.
A further improvement of the present invention lies in that the dewatered high moisture sluge of sewage treatment plant is quantitatively sent into dry when work
Dry machine, high moisture sluge is dehydrated in drying machine, desiccation, and the sludge after desiccation enters cyclone separator with dry flue gas, separates
The particle to get off is stored in dewatered sludge warehouse, by the position of addition steel ball at the top of totally-enclosed Belt Conveying to low speed coal mill
It sets, at the position, dewatered sludge is directly entered low speed coal mill and Power Plant Bunker comes after coal mix grinding to enter boiler furnace and burns；It is dry
Desiccation heat source needed for dry machine is derived from the high-temperature flue gas at position between boiler economizer and air preheater, and flue gas is through revolving after desiccation
After wind separator dedusting, serves as the position that tertiary air is sent between boiler furnace Secondary Air and burnout degree and directly burn, by pot
It send after the original pollutant removing equipment of furnace to chimney qualified discharge.
The present invention has following beneficial technical effect:
Compared with former boiler system, extracting high-temperature flue gas dewatered sludge is used, the flue gas after drying is fed again into boiler
Burner hearth, for whole system, which belongs to interior circulation, has the function of that certain reduction boiler NOx generates concentration,
It is smaller on boiler combustion and the heat absorption influence of each heating surface, on unit safety, stable operation substantially without influence.In mud drying process
The micro organic component gases such as exhaust gas such as H2S, NH3, mercaptan, organic sulfur compound, Ammonia are generated directly to send together with smoked gas
Enter boiler furnace second-time burning, prevents the discarded secondary pollution of desiccation.Sludge after desiccation is directly transported by totally-enclosed belt
The position of addition steel ball, is sent into coal pulverizer, it is possible to prevente effectively from what dewatered sludge distributed in the position at the top of to low speed coal mill
The release of foul smell gas, is effectively improved work on the spot environment.
One kind provided by the invention is with ball mill pulverized coal preparation system and utilizes flue gas dewatered sludge coupled electricity-generation system, Ke Yiyou
Effect utilizes high temperature flue-gas from boiler heat desiccation high moisture sluge, and dry sludge is sent directly into powder processed in low speed coal mill, realizes dirty
The harmless treatment of mud, it is good with machine set system adaptability, original system safe and stable operation will not be had an impact, and will do
Flue gas after change is sent directly into boiler furnace second-time burning as tertiary air, prevents the secondary pollution of sludge drying.The present invention
A kind of new approach can be provided for the processing of high moisture sluge innoxious burning, there is significant ground social benefit and environmental benefit.
Detailed description of the invention
Fig. 1 is a kind of principle with ball mill pulverized coal preparation system and utilization flue gas dewatered sludge coupled electricity-generation system of the present invention
Figure.
In figure: 1- drying machine, 2- dewatered sludge warehouse, 3- low speed coal mill, 4- coal bunker, 5- boiler, 6- air preheater.
Specific embodiment
The present invention is made further instructions below in conjunction with attached drawing.
As shown in Figure 1, one kind provided by the invention is with ball mill pulverized coal preparation system and utilizes flue gas dewatered sludge coupled electricity-generation
System, including drying machine 1, dewatered sludge warehouse 2, low speed coal mill 3, coal bunker 4, boiler 5 and air preheater 6；Wherein, dry
Machine 1 for being dehydrated to the dewatered high moisture sluge of sewage treatment plant that sewage sludge feed spiral quantitative is sent, desiccation, it is dry
The outlet of machine 1 is connected to the entrance of dewatered sludge warehouse 2, and the outlet of dewatered sludge warehouse 2 and the outlet of coal bunker 4 are connected to steel
The position of steel ball is added at the top of ball coal pulverizer 3, the outlet of low speed coal mill 3 is connected to 5 burner hearth of boiler, boiler economizer and air
The high-temperature flue gas at position is used to provide required desiccation heat source to drying machine 1 between preheater 6.
The principle of the present invention figure is as shown in Figure 1, key technology is as follows:
The dewatered high moisture sluge of sewage treatment plant is sent into drying machine 1, high moisture sluge through sewage sludge feed spiral quantitative
Dehydration, desiccation, the sludge after desiccation enter cyclone separator with dry flue gas in drying machine 1, the particle storage separated
It is dry at the position by the position for adding steel ball at the top of totally-enclosed Belt Conveying to low speed coal mill 3 in dewatered sludge warehouse 2
Change sludge, which is directly entered after low speed coal mill 3 carrys out coal mix grinding with Power Plant Bunker 4, enters 5 hearth combustion of boiler；It is done needed for drying machine 1
Change the high-temperature flue gas that heat source is derived from position between boiler economizer and air preheater 6, flue gas is through cyclone separator after desiccation
After dedusting, serves as the position that tertiary air is sent between 5 burner hearth Secondary Air of boiler and burnout degree and directly burn, it is original by boiler 5
Pollutant removing equipment after send to chimney qualified discharge.
The technical essential that the present invention protects is as follows:
1, the present invention is directed matching the fired power generating unit of ball mill pulverized coal preparation system；
2, the present invention is using the high-temperature flue gas at position between boiler economizer and air preheater as desiccation heat source；
3, by the position of addition steel ball at the top of totally-enclosed Belt Conveying to low speed coal mill after sludge drying, at the position
Dewatered sludge is directly entered low speed coal mill and Power Plant Bunker carrys out coal and blended and powder processed；
4, the flue gas after sludge drying is sent into boiler furnace Secondary Air and combustion through piping after cyclone separator dedusting
It directly burns as tertiary air at position to the greatest extent between wind.
Claims (4)
1. one kind is with ball mill pulverized coal preparation system and utilizes flue gas dewatered sludge coupled electricity-generation system, which is characterized in that including drying
Machine (1), dewatered sludge warehouse (2), low speed coal mill (3), coal bunker (4), boiler (5) and air preheater (6)；Wherein,
Drying machine (1) for the dewatered high moisture sluge of sewage treatment plant is dehydrated, desiccation, the outlet of drying machine (1)
It is connected to the entrance of dewatered sludge warehouse (2), the outlet of dewatered sludge warehouse (2) and the outlet of coal bunker (4) are connected to steel ball
The position of addition steel ball at the top of coal pulverizer (3), the outlet of low speed coal mill (3) are connected to boiler (5) burner hearth, boiler economizer and
Desiccation heat source needed for the high-temperature flue gas at position is used to provide to drying machine (1) between air preheater (6).
2. one kind according to claim 1 is with ball mill pulverized coal preparation system and utilizes flue gas dewatered sludge coupled electricity-generation system,
It is characterized in that, further including sewage sludge feed spiral, drying machine (1) is sent into for quantifying high moisture sluge.
3. one kind according to claim 1 is with ball mill pulverized coal preparation system and utilizes flue gas dewatered sludge coupled electricity-generation system,
It is characterized in that, further include cyclone separator, for being separated for the sludge after desiccation with dry flue gas, the particle separated
It is stored in dewatered sludge warehouse (2).
4. one kind according to claim 3 is with ball mill pulverized coal preparation system and utilizes flue gas dewatered sludge coupled electricity-generation system,
It is characterized in that, the dewatered high moisture sluge of sewage treatment plant is quantitatively sent into drying machine (1), and high moisture sluge exists when work
Dehydration, desiccation, the sludge after desiccation enter cyclone separator with dry flue gas in drying machine (1), the particle storage separated
In dewatered sludge warehouse (2), by the position of addition steel ball at the top of totally-enclosed Belt Conveying to low speed coal mill (3), in the portion
Position dewatered sludge, which is directly entered after low speed coal mill (3) and Power Plant Bunker (4) carry out coal mix grinding, enters boiler (5) hearth combustion；It is dry
Desiccation heat source needed for dry machine (1) is derived from the high-temperature flue gas at position between boiler economizer and air preheater (6), and give up cigarette after desiccation
Gas serves as the position that tertiary air is sent between boiler (5) burner hearth Secondary Air and burnout degree and directly fires after cyclone separator dedusting
It burns, send after the original pollutant removing equipment of boiler (5) to chimney qualified discharge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810886528.1A CN108954277A (en) | 2018-08-06 | 2018-08-06 | One kind is with ball mill pulverized coal preparation system and utilizes flue gas dewatered sludge coupled electricity-generation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810886528.1A CN108954277A (en) | 2018-08-06 | 2018-08-06 | One kind is with ball mill pulverized coal preparation system and utilizes flue gas dewatered sludge coupled electricity-generation system |
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| CN108954277A true CN108954277A (en) | 2018-12-07 |
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| CN201810886528.1A Pending CN108954277A (en) | 2018-08-06 | 2018-08-06 | One kind is with ball mill pulverized coal preparation system and utilizes flue gas dewatered sludge coupled electricity-generation system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109631044A (en) * | 2018-12-19 | 2019-04-16 | 曲靖云能投新能源发电有限公司 | A kind of refuse incinerator of circulating fluid bed and its incinerating method |
| CN111320352A (en) * | 2020-03-19 | 2020-06-23 | 中国能源建设集团广东省电力设计研究院有限公司 | Sludge treatment equipment |
| CN112174483A (en) * | 2020-10-14 | 2021-01-05 | 华能国际电力股份有限公司 | Thermal power generating unit sludge coupling power generation system utilizing flue gas drying |
| CN112178671A (en) * | 2020-09-30 | 2021-01-05 | 西安热工研究院有限公司 | Method and system suitable for increasing direct blending combustion proportion of wet coal slime for pulverized coal fired boiler |
| CN112197278A (en) * | 2020-10-28 | 2021-01-08 | 西安热工研究院有限公司 | System for coupling sludge drying incineration of secondary reheating power station boiler |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104692603A (en) * | 2015-02-27 | 2015-06-10 | 南通万达锅炉有限公司 | Integral treatment system for sludge |
| CN106439892A (en) * | 2016-09-30 | 2017-02-22 | 上海垒锦环境科技中心 | Mixed powder preparation system with coal and sludge coupling combustion power generation |
| CN207659297U (en) * | 2017-11-08 | 2018-07-27 | 上海锅炉厂有限公司 | Sludge drying couples coal generating system |
| CN208687698U (en) * | 2018-08-06 | 2019-04-02 | 西安热工研究院有限公司 | One kind is with ball mill pulverized coal preparation system and utilizes flue gas dewatered sludge coupled electricity-generation system |
-
2018
- 2018-08-06 CN CN201810886528.1A patent/CN108954277A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104692603A (en) * | 2015-02-27 | 2015-06-10 | 南通万达锅炉有限公司 | Integral treatment system for sludge |
| CN106439892A (en) * | 2016-09-30 | 2017-02-22 | 上海垒锦环境科技中心 | Mixed powder preparation system with coal and sludge coupling combustion power generation |
| CN207659297U (en) * | 2017-11-08 | 2018-07-27 | 上海锅炉厂有限公司 | Sludge drying couples coal generating system |
| CN208687698U (en) * | 2018-08-06 | 2019-04-02 | 西安热工研究院有限公司 | One kind is with ball mill pulverized coal preparation system and utilizes flue gas dewatered sludge coupled electricity-generation system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109631044A (en) * | 2018-12-19 | 2019-04-16 | 曲靖云能投新能源发电有限公司 | A kind of refuse incinerator of circulating fluid bed and its incinerating method |
| CN111320352A (en) * | 2020-03-19 | 2020-06-23 | 中国能源建设集团广东省电力设计研究院有限公司 | Sludge treatment equipment |
| CN111320352B (en) * | 2020-03-19 | 2022-05-17 | 中国能源建设集团广东省电力设计研究院有限公司 | Sludge treatment equipment |
| CN112178671A (en) * | 2020-09-30 | 2021-01-05 | 西安热工研究院有限公司 | Method and system suitable for increasing direct blending combustion proportion of wet coal slime for pulverized coal fired boiler |
| CN112174483A (en) * | 2020-10-14 | 2021-01-05 | 华能国际电力股份有限公司 | Thermal power generating unit sludge coupling power generation system utilizing flue gas drying |
| CN112197278A (en) * | 2020-10-28 | 2021-01-08 | 西安热工研究院有限公司 | System for coupling sludge drying incineration of secondary reheating power station boiler |
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Application publication date: 20181207 |
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