CN2806427Y - Particle dryer - Google Patents
Particle dryer Download PDFInfo
- Publication number
- CN2806427Y CN2806427Y CN 200520113719 CN200520113719U CN2806427Y CN 2806427 Y CN2806427 Y CN 2806427Y CN 200520113719 CN200520113719 CN 200520113719 CN 200520113719 U CN200520113719 U CN 200520113719U CN 2806427 Y CN2806427 Y CN 2806427Y
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- CN
- China
- Prior art keywords
- cavity
- particle dryer
- inlet
- wet sludge
- 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.)
- Expired - Lifetime
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- Drying Of Solid Materials (AREA)
- Treatment Of Sludge (AREA)
Abstract
The utility model relates to a particle dryer, which comprises a cavity provided with a wet sludge feeding port, an exhaust outlet and a dry sludge outlet. The utility model is characterized in that a wind distributing pipe or a wind distributing plate with a wind cap is horizontally arranged at the lower part of an inner cavity of the cavity; a hot ash inlet positioned on a bottom plate or an outside wall of the cavity is also arranged on the cavity. A heat carrier and the wet sludge are simultaneously fed in the particle dryer. In the particle dryer, the wet sludge under a fluidized state and hot ash do direct heat exchange. Thus, the heat of the hot ash is fully used for heating the wet sludge and water of the wet sludge is vaporized to realize drying. Water which is vaporized is exhausted out of the particle dryer following fluidizing gas in a water vapor form. Thus, the wet sludge with high water content can be quickly dried. Dried sludge and the hot ash are exhausted out of the particle dryer together, and can be entered into a destructor to incinerate. The particle dryer can also be used for drying concentrating and filtering liquid, etc. in garbage landfill sites.
Description
Technical field
The utility model 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 utility model provides a kind of particle drier, add thermal barrier and wet mud in this particle drier simultaneously, 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.
The technical solution of the utility model is as follows:
The particle drier that the utility model provides, 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 utility model is:
Particle drier of the present utility model 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 utility model 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.
The particle drier that the utility model provides 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 utility model embodiment 1 device.
Accompanying drawing 2 is A-A sectional views of the utility model embodiment 1 device.
Accompanying drawing 3 is front views of the utility model embodiment 2 devices.
Accompanying drawing 4 is B-B sectional views of the utility model embodiment 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 inlet 11 and is positioned on kiln 5 top covers hot ash of deflection and goes into a side of 13.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 (6)
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).
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 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).
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.
6, by the described particle drier of claim 1, it is characterized in that described cavity (1) is the bubbling fluidized bed of 0.3-0.8m/s for fluidizing velocity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520113719 CN2806427Y (en) | 2005-07-12 | 2005-07-12 | Particle dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520113719 CN2806427Y (en) | 2005-07-12 | 2005-07-12 | Particle dryer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2806427Y true CN2806427Y (en) | 2006-08-16 |
Family
ID=36920729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520113719 Expired - Lifetime CN2806427Y (en) | 2005-07-12 | 2005-07-12 | Particle dryer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2806427Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100447102C (en) * | 2005-07-08 | 2008-12-31 | 中国科学院工程热物理研究所 | Particle drier |
| CN104729234A (en) * | 2015-03-26 | 2015-06-24 | 东南大学 | Screw type fluidized bed dryer |
-
2005
- 2005-07-12 CN CN 200520113719 patent/CN2806427Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100447102C (en) * | 2005-07-08 | 2008-12-31 | 中国科学院工程热物理研究所 | Particle drier |
| CN104729234A (en) * | 2015-03-26 | 2015-06-24 | 东南大学 | Screw type fluidized bed dryer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20081231 |
|
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20081231 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |