CN100447102C - Particle drier - Google Patents
Particle drier Download PDFInfo
- Publication number
- CN100447102C CN100447102C CNB2005100828253A CN200510082825A CN100447102C CN 100447102 C CN100447102 C CN 100447102C CN B2005100828253 A CNB2005100828253 A CN B2005100828253A CN 200510082825 A CN200510082825 A CN 200510082825A CN 100447102 C CN100447102 C CN 100447102C
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- China
- Prior art keywords
- cavity
- inlet
- heat
- particle
- dewatered sludge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000002245 particle Substances 0.000 title claims abstract description 23
- 239000010802 sludge Substances 0.000 claims abstract description 31
- 238000013022 venting Methods 0.000 claims description 10
- 238000005192 partition Methods 0.000 claims description 7
- 230000005587 bubbling Effects 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 abstract description 5
- 230000008020 evaporation Effects 0.000 abstract description 4
- 238000001035 drying Methods 0.000 abstract description 3
- 238000005243 fluidization Methods 0.000 abstract description 3
- 239000002956 ash Substances 0.000 description 20
- 238000000034 method Methods 0.000 description 5
- 239000010865 sewage Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 102000002322 Egg Proteins Human genes 0.000 description 1
- 108010000912 Egg Proteins Proteins 0.000 description 1
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 210000004681 ovum Anatomy 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
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- Drying Of Solid Materials (AREA)
- Treatment Of Sludge (AREA)
Abstract
This invention relates to a particle airer including: a cavity with a wet sludge feeding port, a vent and a dry sludge exit characterizing that an air tube or an air board with a cap is mounted horizontally under the inner cavity and an inlet for hot ash is set at the base plate or outside wall of the cavity, in which, a hot carrier and wet sludge join in the particle airer at the same time and wet sludge exchanges heat with the hot ash under the fluidization state to heat and dry the wet sludge by utilizing heat of the hot ash and evaporating moisture of the wet sludge, in which, the moisture from evaporation is discharged from the airer so as to dry wet sludge with large amount of moisture quickly, dried sludge and hot ash are discharged from the particle airer together and burnet in an inicinerator. This invented device can be used in drying of concentrated percolate of garbage burying fields.
Description
Technical field
The present invention relates to a kind of moisture eliminator, particularly a kind of particle drier that is used for the wet mud of mummification.
Technical background
Mud is the solid residue after the sewage disposal, and sludge quantity accounts for 3 ‰ of sewage load～5 ‰ (in water ratio 97%).Industry of China and sanitary sewage disposal amount increase sharply, and the continuous construction along with sewage work will produce more mud.The composition of mud is very complicated, except that containing a large amount of moisture, also contains organism, various trace elements, pathogenic micro-organism and the compositions such as parasitic ovum, heavy metal of common organic matter, difficult degradation.
The method for sludge treatment that with the burning is core can farthest satisfy minimizing, stabilization and innoxious requirement.Directly the wet mud that adds without mummification in incinerator burns, and the cell process such as harmless treatment of drying, burning even the flue gas of mud can be concentrated in the single device to carry out simultaneously, simplifies the sludge incineration treatment process, reduces processing cost; But moisture contained in the wet mud will be discharged burner hearth with burning the high-temperature flue gas that is produced, and take away a large amount of heats, therefore need to add a large amount of auxiliary fuels and just can reach energy balance.Except wet mud, also have the waste of some high-moisture percentages, as percolate from garbage filling field etc., the same problem that exists when burning also needs to carry out mummification earlier and burns.
Existing sludge drying equipment mainly by the wet mud of thermal barrier indirect heating, makes moisture evaporation wherein.For example the fluidized bed type moisture eliminator is mobile indirect heating, the wet mud of mummification in tube bank by thermal oil or steam.
Summary of the invention
The purpose of this invention is to provide a kind of particle drier, can add thermal barrier and wet mud simultaneously in this particle drier, wet mud carries out heat exchange with the direct blending of thermal barrier in this particle drier, wet mud is heated, it is dry that thereby moisture evaporation wherein comes out to realize, wet mud is in fluidized state in the exsiccant process, the moisture that is evaporated is discharged moisture eliminator with the water vapour form with fluidizing agent, and exsiccant mud is discharged particle drier with thermal barrier.
Technical scheme of the present invention is as follows:
Particle drier provided by the invention, its structure comprises: a cavity 1; Described cavity 1 is provided with wet mud and adds inlet 11, venting port 12 and dewatered sludge outlet 14; It is characterized in that described cavity 1 inner chamber lower horizontal is installed a wind-distributing pipe 3) or an air distribution plate 2 that is provided with blast cap 21 is installed; Also be provided with heat ash inlet 13 on the described cavity 1; Described heat ash inlet 13 is positioned on the base plate or outer side wall of cavity 1.
Described dewatered sludge outlet 14 is located on the cavity 1 and heat ash inlet 13 opposite external side walls middle part.Described cavity 1 inner chamber middle and lower part is provided with the longitudinal partition wall 4 that is fixed on 1 end of cavity chamber wall and chamber, the both sides wall, and described longitudinal partition wall 4 is divided into unloading house 6 with cavity 1 and has the kiln 5 of heat ash inlet 13; Described dewatered sludge outlet 14 is located at the bottom of unloading house 6.Described wet mud adds the side that inlet 11 is positioned at deflection heat ash inlet 13 on cavity 1 top cover.Described venting port 12 is positioned at a side of deflection dewatered sludge outlet 14 on cavity 1 top cover.Described cavity 1 is the bubbling fluidized bed of 0.3-0.8m/s for fluidizing velocity.
The principle of work of particle drier of the present invention is:
Particle drier of the present invention will add inlet 11 from the wet mud at cavity 1 top of moisture eliminator through the wet mud broken up and add, provide heat from the heat ash inlet 13 elevated temperature heat ashes that enter of its bottom for moisture eliminator, wet mud in dropping process with the directly blending of heat ash that is in fluidized state, wet mud is dried and granulation.Mummification mud discharge from dewatered sludge outlet 14 with chilled hot ash, from venting port 12 dischargings, carry out also can be used as the fluidizing agent recycle after dedusting, the dehumidifying by its exhaust with fluidizing agent for the moisture that is evaporated in the wet mud.
Device of the present invention can be used for the mummification of the waste of high-moisture percentages such as mud, as urban sewage mud, paper mill sludge, petrochemical industry mud etc., also can be used for the mummification of refuse landfill concentrated leachate.
Particle drier provided by the invention has following advantage:
Wet mud carries out direct heat exchange with hot ash under fluidized state in particle drier, make full use of the wet mud of heat heating of heat ash, thereby make the moisture evaporation of wet mud come out to realize dry, the moisture that is evaporated is discharged moisture eliminator with the water vapour form with fluidizing agent, the rapid mummification of wet mud that like this can water ratio is higher is to water ratio below 20%, exsiccant mud is discharged particle drier with hot ash, can send into incinerator and burn.
Description of drawings
Accompanying drawing 1 is the front view of the embodiment of the invention 1 device.
Accompanying drawing 2 is A-A sectional views of the embodiment of the invention 1 device.
Accompanying drawing 3 is front views of the embodiment of the invention 2 devices.
Accompanying drawing 4 is B-B sectional views of the embodiment of the invention 2 devices
Cavity 1 wet mud adds inlet 11 venting ports 12 heat ash inlets 13
Wind-distributing pipe 3 partition walls 4 kilns 5 unloading house 6
Embodiment
Embodiment 1
The particle drier of present embodiment, its structure is as follows, comprising:
One rectangular parallelepiped cavity 1, its inner chamber lower horizontal is installed wind-distributing pipe 3, and the cavity middle and lower part is provided with longitudinal partition wall 4 cavity is separated into kiln 5 and unloading house 6; Kiln 5 is provided with heat ash inlet 13 and wet mud adds inlet 11; Unloading house's 6 top covers are provided with venting port 12, and the bottom is provided with dewatered sludge outlet 14.Heat ash inlet 13 is positioned on kiln 5 base plates away from an end of partition wall 4, and quantity is 2.Wet mud adds the side that inlet 11 is positioned at deflection heat ash inlet 13 on kiln 5 top covers.Venting port 12 is positioned at a side of deflection dewatered sludge outlet 32 on unloading house's 6 top covers.The fluidizing velocity of kiln 5 is 0.5m/s, and the fluidizing velocity of unloading house 6 is 0.4m/s, and two Room are bubbling fluidized bed.Wet mud adds inlet 11 from wet mud and adds, and dewatered sludge exports 14 with discharging through overcooled heat ash from dewatered sludge.
Embodiment 2
The particle drier of present embodiment, its structure is as follows, comprising:
One cylindricality cavity 1, its inner chamber lower horizontal is installed an air distribution plate 2, and air distribution plate 2 is provided with blast cap 21; Chamber under the air distribution plate 2 is a fluidisation air compartment 22, and cavity 1 is a bubbling fluidized bed; Cavity 1 is provided with wet mud and adds inlet 11, venting port 12, heat ash inlet 13 and dewatered sludge outlet 14; Hot grey inlet 13 is positioned on cavity 1 sidewall, and dewatered sludge outlet 14 is positioned at and the grey 13 relative sidewall middle parts that enter the mouth of heat; Wet mud adds the side that inlet 11 is positioned at deflection heat ash inlet 11 on cavity 1 top cover.Venting port 12 is positioned at a side of deflection dewatered sludge outlet 14 on cavity 1 top cover.The fluidizing velocity of cavity 1 is 0.8m/s.Percolate from garbage filling field adds inlet 11 from wet mud and adds, and dried percolate residue exports 14 with discharging through overcooled heat ash from dewatered sludge.
Claims (5)
1, a kind of particle drier, its structure comprises: a cavity (1); Described cavity (1) is provided with wet mud and adds inlet (11), venting port (12) and dewatered sludge outlet (14); It is characterized in that described cavity (1) inner chamber lower horizontal is installed a wind-distributing pipe (3) or an air distribution plate (2) that is provided with blast cap (21) is installed; Also be provided with heat ash inlet (13) on the described cavity (1); Described heat ash inlet (13) is positioned on the base plate or outer side wall of cavity (1); Described cavity (1) is the bubbling fluidized bed of 0.3-0.8m/s for fluidizing velocity.
By the described particle drier of claim 1, it is characterized in that 2, described dewatered sludge outlet (14) is located at cavity (1) and goes up and heat ash inlet (13) opposite external side wall middle part.
3, by the described particle drier of claim 1, it is characterized in that, described cavity (1) inner chamber middle and lower part is provided with the longitudinal partition wall (4) that is fixed on cavity (1) chamber, end wall and the two side, and described longitudinal partition wall (4) is divided into unloading house (6) with cavity (1) and has the kiln (5) of heat ash inlet (13); Described dewatered sludge outlet (14) is located at the bottom of unloading house (6).
By the described particle drier of claim 1, it is characterized in that 4, described wet mud adds the side that inlet (11) is positioned at deflection heat ash inlet (13) on cavity (1) top cover.
By the described particle drier of claim 1, it is characterized in that 5, described venting port (12) is positioned at a side of deflection dewatered sludge outlet (14) on cavity (1) top cover.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100828253A CN100447102C (en) | 2005-07-08 | 2005-07-08 | Particle drier |
| PCT/CN2006/001610 WO2007006218A1 (en) | 2005-07-08 | 2006-07-07 | A dryer and a method and an equipment for drying and incinerating wet sludge using circulating fluidized bed with the dryer |
| JP2008519785A JP4839371B2 (en) | 2005-07-08 | 2006-07-07 | Particle dryer and wet sludge incineration method and apparatus using particle dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100828253A CN100447102C (en) | 2005-07-08 | 2005-07-08 | Particle drier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1891643A CN1891643A (en) | 2007-01-10 |
| CN100447102C true CN100447102C (en) | 2008-12-31 |
Family
ID=37596877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100828253A Expired - Fee Related CN100447102C (en) | 2005-07-08 | 2005-07-08 | Particle drier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100447102C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103058488B (en) * | 2013-01-04 | 2014-12-10 | 无锡亿恩科技股份有限公司 | Fluidized bed dryer for drying sludge by narrow screened high-temperature particle heat carrier |
| CN104949135A (en) * | 2015-06-30 | 2015-09-30 | 霍奇志 | Multi-temperature particle heat source drying device and method |
| CN107117790A (en) * | 2017-06-20 | 2017-09-01 | 温州正建设有限公司 | A kind of municipal sludge drying processing unit and its processing method |
| CN107473303B (en) * | 2017-08-16 | 2020-12-29 | 北京姚魏环保技术有限公司 | Leachate zero-discharge collaborative ultralow system and method based on waste incineration power generation |
| CN107449229A (en) * | 2017-08-18 | 2017-12-08 | 江俊华 | A kind of sludge treatment device of hydraulic engineering environmental protection |
| CN108249495B (en) * | 2018-01-16 | 2019-09-20 | 清华大学 | Two-period form submerged combustion evaporation integrated apparatus |
| CN108178214B (en) | 2018-01-16 | 2019-08-16 | 清华大学 | The two-period form submerged combustion evaporation integral treatment method of organic liquid waste |
| CN114105439A (en) * | 2021-11-27 | 2022-03-01 | 华能国际电力江苏能源开发有限公司南京电厂 | Device for drying sludge by using shunting ash return external bed |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3846302A (en) * | 1972-08-02 | 1974-11-05 | R Crocker | Apparatus for heat treating liquid or semi-liquid material |
| JPS59230697A (en) * | 1983-06-14 | 1984-12-25 | Ebara Infilco Co Ltd | Treatment of organic sludge |
| DE3731720A1 (en) * | 1987-09-21 | 1989-04-06 | Saarberg Interplan Gmbh | Method for drying solids |
| CN1088480A (en) * | 1992-11-10 | 1994-06-29 | 阿尔斯特罗姆公司 | Be used to handle the method and apparatus of the fluidized bed reaction system of circulation |
| CN2806427Y (en) * | 2005-07-12 | 2006-08-16 | 中国科学院工程热物理研究所 | Particle dryer |
-
2005
- 2005-07-08 CN CNB2005100828253A patent/CN100447102C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3846302A (en) * | 1972-08-02 | 1974-11-05 | R Crocker | Apparatus for heat treating liquid or semi-liquid material |
| JPS59230697A (en) * | 1983-06-14 | 1984-12-25 | Ebara Infilco Co Ltd | Treatment of organic sludge |
| DE3731720A1 (en) * | 1987-09-21 | 1989-04-06 | Saarberg Interplan Gmbh | Method for drying solids |
| CN1088480A (en) * | 1992-11-10 | 1994-06-29 | 阿尔斯特罗姆公司 | Be used to handle the method and apparatus of the fluidized bed reaction system of circulation |
| CN2806427Y (en) * | 2005-07-12 | 2006-08-16 | 中国科学院工程热物理研究所 | Particle dryer |
Non-Patent Citations (1)
| Title |
|---|
| 惰性粒子流化干燥机的研究. 江涛等.农业工程学报，第19卷第6期. 2003 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1891643A (en) | 2007-01-10 |
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Granted publication date: 20081231 |