CN108613198A - A kind of sludge incineration flue gas treating process - Google Patents
A kind of sludge incineration flue gas treating process Download PDFInfo
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- CN108613198A CN108613198A CN201810131946.XA CN201810131946A CN108613198A CN 108613198 A CN108613198 A CN 108613198A CN 201810131946 A CN201810131946 A CN 201810131946A CN 108613198 A CN108613198 A CN 108613198A
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- China
- Prior art keywords
- flue gas
- sludge
- dust
- biochemical reaction
- reaction tank
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/001—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals for sludges or waste products from water treatment installations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/006—Layout of treatment plant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/12—Sludge, slurries or mixtures of liquids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
- F23J2215/10—Nitrogen; Compounds thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
- F23J2215/20—Sulfur; Compounds thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2217/00—Intercepting solids
- F23J2217/10—Intercepting solids by filters
- F23J2217/102—Intercepting solids by filters electrostatic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2217/00—Intercepting solids
- F23J2217/50—Intercepting solids by cleaning fluids (washers or scrubbers)
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Treating Waste Gases (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of sludge incineration flue gas treating process, are related to sludge and industrial waste water treatment.It is comprised the following steps：Wet mud is promoted to vertical compression deep sludge dewatering process equipment through screw pump and is dehydrated；It is then lifted out sludge drying machine；Then sludge, which enters in incinerator, is preheated, is dried, being burned；Flue gas from incinerator out will enter water dust scrubber and remove the dust of bulky grain and continue to cool down through heat exchanger after heat absorption；Flue gas sequentially enters condenser, level-one electrostatic precipitator and two-stage electrostatic precipitator after water dust scrubber, and the dust of flue gas is down to 10 milligrams every cubic metre or less；Flue gas is pressed into biochemical reaction tank through high pressure positive blower, the gas of biochemical reaction tank is pressed into biological soil filter tank by collection wind turbine, and flue gas is through geobiont filter tank uncontrollable discharge.Specific resistance to filtration is accomplished minimizing, stabilisation, the requirement of innoxious and recycling by the present invention in sewage treatment plant.
Description
Technical field
The present invention relates to municipal sludge and part industrial sludge processing disposal technology fields, and in particular to a kind of sludge incineration
Flue gas treating process.
Background technology
The Industry Waste mud generated after the excess sludge and Industrial Wastewater Treatment of municipal sewage plant, is burned through deep dehydration
Afterwards, a large amount of flue gas is generated.It is how further that fume treatment is good, it is the key that deeply dehydrating sludge burning disposal.
Sludge enters sludge incineration stokehold, and there is also about 50-60% for the moisture content of sludge, can be produced when burning main a large amount of high
Warm flue gas.Contain the substances such as steam, dust, tar, nitrogen oxides, sulfide, HCL, dioxin in these flue gases.In order to effective
Dust is handled, selects bag filter mostly, but must be dry gas with bag filter, thus consumes a large amount of energy,
And tar easily blocks.In order to eliminate nitrogen oxides, sulfide, HCL and its peculiar smell, common process selects highly basic, strong acid, Strong oxdiative
The methods of agent scrubbing tower and activated carbon adsorption are handled.There are of high cost, safety is low, asking for bottom is not built in processing for this method
Topic.
Invention content
The object of the present invention is to provide a kind of by specific resistance to filtration accomplish in sewage treatment plant minimizing, stabilisation,
The sludge incineration flue gas treating process that innoxious and recycling requires.
In order to solve the problems existing in background technology, the present invention adopts the following technical solutions：A kind of sludge incineration cigarette
Gas disposal technique, it is comprised the following steps：
(a) wet mud in wet pug bucket is promoted to vertical compression deep sludge dewatering process equipment through screw pump and is dehydrated；
(b) sludge after deep dehydration is further promoted and arrives sludge drying machine, is further gone using the waste heat continuation of flue gas
Except the moisture in sludge；Then sludge, which enters in incinerator, is preheated, is dried, being burned；
(c) flue gas from incinerator out, through heat exchanger, by heat absorption, a thermal energy part for absorption is for dirt
The further desiccation of mud, a part is for preheating the air into incinerator；
(d) flue gas removes the dust of bulky grain into water dust scrubber and continues to cool down after over-heat-exchanger；Flue gas passes through
After crossing water dust scrubber, condenser, level-one electrostatic precipitator and two-stage electrostatic precipitator are sequentially entered, the dust of flue gas is down to
10 milligrams every cubic metre or less；
(e) flue gas is pressed into biochemical reaction tank through high pressure positive blower, completing microorganism in biochemical reaction tank will be in flue gas
Various substances are adsorbed, are aoxidized, are decomposed；
(f) gas of biochemical reaction tank is pressed into biological soil filter tank by collection wind turbine, and flue gas is aoxidized, decomposes generation
Some simple materials (such as hydrogen sulfide, ammonia nitrogen) and in geobiont filter tank by specific microbiological oxidation decompose absorb；
(g) flue gas is through geobiont filter tank uncontrollable discharge.
As a further improvement on the present invention；The water dust scrubber is equipped with two-stage packing layer, to ensure flue gas and water
It is come into full contact with, water reaches design requirement with hydraulic pressure, to ensure dedusting and cooling-down effect.
As a further improvement on the present invention；The vertical compression deep sludge dewatering process equipment includes sequentially connected straight
Pressure dewaterer, dry pug bucket and elevator.
As a further improvement on the present invention；The biochemical reaction tank has certain volume and depth, by flue gas with micro-
The mode of hole aeration allows flue gas to be dissolved in water and be come into full contact with microorganism, and microorganism carries out the various substances in flue gas
Absorption, is decomposed, biochemical reaction tank gas gathering mask installed above at oxidation, convenient for collecting gas.
As a further improvement on the present invention；The level-one electrostatic precipitator and two-stage electrostatic precipitator are all made of wet type
High-voltage electrostatic dust separator.
After adopting the above technical scheme, the invention has the advantages that：
1, with the flue gas of special microbiological treatment sludge incinerator, tail gas is using uncontrollable discharge；
2, flue gas is allowed to be dissolved in water and be come into full contact with microorganism the mode of flue gas micro-pore aeration, microorganism will
Various substances in flue gas are adsorbed, are aoxidized, are decomposed；
3, it aoxidizes, decompose some simple materials such as hydrogen sulfide, ammonia nitrogen generated and is specific in geobiont filter tank
Microbiological oxidation decompose absorb；
4, the dust in flue gas is handled, using the method for water film dedusting+two level wet-type high-voltage electrostatic precipitation；
5, the processing of flue gas is a complete technique packet；
6, biochemistry pool has certain volume and depth, meets the microbial biochemical reaction required time；
7, flue gas reaches relevant national standard after a series of processing.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the device structure schematic diagram of embodiment provided by the present invention；
Fig. 2 is the process flow chart of embodiment provided by the present invention；
Reference numeral：
The wet pug buckets of 1-；2- screw pumps；3- direct press type dewaterers；The dry pug buckets of 4-；5- elevators；6- sludge drying machines；
7- incinerators；8- heat exchangers；9- water dust scrubbers；10- condensers；11- level-one electrostatic precipitator；12- secondary electrostatic dedustings
Device；13- high pressure positive blowers；14- biological reaction pools；15- collection wind turbines；16- geobionts filter tank.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with attached drawing and specific implementation
Mode, the present invention will be described in further detail.It should be appreciated that the specific embodiments described herein are only explaining this
Invention, is not intended to limit the present invention.
- Fig. 2 is please referred to Fig.1, present embodiment uses following technical scheme：A kind of sludge incineration fume treatment work
Skill, it is comprised the following steps：
(a) wet mud in wet pug bucket 1 is promoted through screw pump 2 to by direct press type dewaterer 3, dry pug bucket 4 and promotion
The vertical compression deep sludge dewatering process equipment that machine 5 forms is dehydrated；
(b) sludge after deep dehydration is further promoted and arrives sludge drying machine 6, is further gone using the waste heat continuation of flue gas
Except the moisture in sludge；Then sludge, which enters in incinerator 7, is preheated, is dried, being burned；
(c) a thermal energy part for heat absorption, absorption is used for by the flue gas from incinerator 7 out through heat exchanger 8
The further desiccation of sludge, a part is for preheating the air into incinerator 7；
(d) flue gas removes the dust of bulky grain into water dust scrubber 9 and continues to cool down after over-heat-exchanger 8；Flue gas
After water dust scrubber 9, condenser 10, level-one electrostatic precipitator 11 and two-stage electrostatic precipitator 12 are sequentially entered, by flue gas
Dust be down to 10 milligrams every cubic metre or less；
(e) flue gas is pressed into biochemical reaction tank 14 through high pressure positive blower 13, microorganism is completed in biochemical reaction tank 14 by cigarette
Various substances in gas are adsorbed, are aoxidized, are decomposed；
(f) gas of biochemical reaction tank 14 is pressed into biological soil filter tank 16 by collection wind turbine 15, and flue gas is aoxidized, divided
Solve some simple materials (such as hydrogen sulfide, ammonia nitrogen) generated and in geobiont filter tank 16 by specific microbiological oxidation
It decomposes and absorbs；
(g) flue gas is through geobiont filter tank uncontrollable discharge.
The principle of the present invention is：
Sludge enters sludge incineration stokehold, and there is also about 50-60% for the moisture content of sludge, can be produced when burning main a large amount of high
Warm flue gas.Contain the substances such as steam, dust, tar, nitrogen oxides, sulfide, HCL, dioxin in these flue gases.Using water
Dust is effectively treated in the method for film dust-remover+wet type high voltage electrostatic device dedusting, and nitrogen oxides, vulcanization are handled using microorganism
Object, HCL, dioxin and its peculiar smell.Microorganism is not placed in scrubbing tower, and the biology for being placed on certain volume certain depth is anti-
It answers in pond 14.Flue gas is pressed into through high pressure positive blower 13 in the micro-hole aerator in biological reaction pool 14.By aerator by flue gas shape
It is come into full contact at tiny bubble and microbial solution, by the absorption, oxidation and decomposition of microorganism, by the nitrogen oxygen in flue gas
Compound, sulfide, HCL, dioxin and its peculiar smell are removed completely.It is numerous that microorganism itself carries out self under aerobic condition
It grows, nutriment substantially meets requirement.The gas emerged from biological reaction pool 14 is pressed into after collection with collection wind turbine 15
The uncontrollable discharge after absorption processing is decomposed in specific microbiological oxidation of geobiont filter tank 16.
The present invention has no effect environment, meets《House refuse burns contamination control standard》 GB18485-2014
Standard.Meet National Standard of the People's Republic of China《Discharge standard of air pollutants》(GB16297-1996).It will be dirty
Minimizing, stabilisation, the requirement of innoxious and recycling are accomplished in mud processing disposition in sewage treatment plant.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent requirements of the claims
Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (5)
1. a kind of flue gas treating process of sludge incineration, which is characterized in that it is comprised the following steps：
(a) wet mud in wet pug bucket is promoted to vertical compression deep sludge dewatering process equipment through screw pump and is dehydrated；
(b) sludge after deep dehydration is further promoted and arrives sludge drying machine, further goes to decontaminate using the waste heat continuation of flue gas
Moisture in mud；Then sludge, which enters in incinerator, is preheated, is dried, being burned；
(c) flue gas from incinerator out, through heat exchanger, by heat absorption, the thermal energy part of absorption for sludge into
One step desiccation, a part is for preheating the air into incinerator；
(d) flue gas removes the dust of bulky grain into water dust scrubber and continues to cool down after over-heat-exchanger；Flue gas passes through water
After film dust-remover, condenser, level-one electrostatic precipitator and two-stage electrostatic precipitator are sequentially entered, the dust of flue gas is down to and is often stood
10 milligrams of square rice or less；
(e) flue gas is pressed into biochemical reaction tank through high pressure positive blower, completing microorganism in biochemical reaction tank will be various in flue gas
Substance is adsorbed, is aoxidized, is decomposed；
(f) gas of biochemical reaction tank is pressed into biological soil filter tank by collection wind turbine, and flue gas is aoxidized, decomposes one generated
A little simple materials are decomposed in geobiont filter tank by specific microbiological oxidation again to be absorbed；
(g) flue gas is through geobiont filter tank uncontrollable discharge.
2. a kind of sludge incineration flue gas treating process according to claim 1, which is characterized in that the water dust scrubber
Equipped with two-stage packing layer.
3. a kind of sludge incineration flue gas treating process according to claim 1, which is characterized in that the vertical compression sludge is deep
It includes sequentially connected direct press type dewaterer, dry pug bucket and elevator to spend dewatering process equipment.
4. a kind of sludge incineration flue gas treating process according to claim 1, which is characterized in that the biochemical reaction tank
There are certain volume and depth, allows flue gas to be dissolved in water and fully be connect with microorganism the mode of flue gas micro-pore aeration
It touches, the various substances in flue gas are adsorbed, aoxidized, decomposed by microorganism, biochemical reaction tank gas gathering mask installed above, convenient for receiving
Collect gas.
5. a kind of sludge incineration flue gas treating process according to claim 1, which is characterized in that the level-one electrostatic removes
Dirt device and two-stage electrostatic precipitator are all made of wet-type high-voltage electrostatic precipitation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810131946.XA CN108613198A (en) | 2018-02-09 | 2018-02-09 | A kind of sludge incineration flue gas treating process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810131946.XA CN108613198A (en) | 2018-02-09 | 2018-02-09 | A kind of sludge incineration flue gas treating process |
Publications (1)
| Publication Number | Publication Date |
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| CN108613198A true CN108613198A (en) | 2018-10-02 |
Family
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| CN201810131946.XA Withdrawn CN108613198A (en) | 2018-02-09 | 2018-02-09 | A kind of sludge incineration flue gas treating process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111006223A (en) * | 2019-10-30 | 2020-04-14 | 上海市政工程设计研究总院（集团）有限公司 | Chimney-free sludge incineration method |
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| CN102531318A (en) * | 2011-12-06 | 2012-07-04 | 华北电力大学（保定） | Sludge drying and incinerating integrated zero-discharge treatment system and treatment process |
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| CN104998506A (en) * | 2015-08-02 | 2015-10-28 | 冯培永 | Waste gas purification treatment device of environment-friendly printing and dyeing setting machine |
| CN205463585U (en) * | 2016-04-07 | 2016-08-17 | 深圳华云环保科技发展有限公司 | Domestic rubbish disposal device |
| CN106090935A (en) * | 2016-06-23 | 2016-11-09 | 凯天环保科技股份有限公司 | A kind of waste incineration processing system |
| CN205974207U (en) * | 2016-07-21 | 2017-02-22 | 北京航天石化技术装备工程有限公司 | Energy recuperation type sludge drying system of burning |
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2018
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1899990A (en) * | 2006-07-27 | 2007-01-24 | 浙江大学 | Control method for released gas in mud drying process |
| CN201240987Y (en) * | 2008-05-09 | 2009-05-20 | 杭州新源环境工程有限公司 | Sludge anhydration system of tail gas waste heat recovery recycle |
| CN101963358A (en) * | 2010-09-30 | 2011-02-02 | 昆明理工大学 | Combined treatment method for oilfield solid waste |
| CN102531318A (en) * | 2011-12-06 | 2012-07-04 | 华北电力大学（保定） | Sludge drying and incinerating integrated zero-discharge treatment system and treatment process |
| CN104033911A (en) * | 2014-06-30 | 2014-09-10 | 南京德邦金属装备工程股份有限公司 | Sludge drying and incinerating system |
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| CN205463585U (en) * | 2016-04-07 | 2016-08-17 | 深圳华云环保科技发展有限公司 | Domestic rubbish disposal device |
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| CN111006223A (en) * | 2019-10-30 | 2020-04-14 | 上海市政工程设计研究总院（集团）有限公司 | Chimney-free sludge incineration method |
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Application publication date: 20181002 |
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