CN108298795A - A kind of sludge drying mechanism - Google Patents
A kind of sludge drying mechanism Download PDFInfo
- Publication number
- CN108298795A CN108298795A CN201810363630.3A CN201810363630A CN108298795A CN 108298795 A CN108298795 A CN 108298795A CN 201810363630 A CN201810363630 A CN 201810363630A CN 108298795 A CN108298795 A CN 108298795A
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- Prior art keywords
- sludge
- drying
- agitating device
- drying mechanism
- pump
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/40—Acidic components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/44—Organic components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Drying Of Solid Materials (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of sludge drying mechanisms, belong to technical field of sludge treatment.1 right side connecting pipe 3 of stock chest of the present invention；Setting pump 2 in the pipeline 3；3 right side connection drying sludge case 4 of the pipeline；Sieve 5, dry agitating device 6, baffle 7, discharge bucket 8, discharge port 9 and material collecting tank 10 are disposed in the drying sludge case 4 from top to bottom；The dry agitating device 6 stirs shell 16, electric heater unit 17 by machine 14, shaft 15, and stirring sheet 18 is constituted；4 left side of the drying sludge case connects ventilation duct 12；Wind turbine 11 and dehydrating breather 13 are provided in the ventilation duct 12.Sludge drying mechanism provided by the invention has excellent drying efficiency and is avoided that generation secondary pollution.
Description
Technical field
The invention discloses a kind of sludge drying mechanisms, belong to technical field of sludge treatment.
Background technology
Sludge is the solid product after municipal sewage treatment, is the main carriers of dirty pollutant in water, is had stronger
Pollution.The sludge of secondary sewage treatment plant contains 50% organic matter in municipal sewage, 70~90% heavy metals, also displaced a variety of
Noxious material and harmful microorganism.If without appropriately handling and disposing, the pollutant in sewage sludge can constantly enter periphery
Air, soil and water body, cause secondary pollution to environment in a long time.And with the quick hair of social economy and urbanization
Exhibition, municipal sewage treatment ability constantly enhance, and the sludge quantity of generation sharply increases.How science, properly processing sludge have become
The critical issue that must be solved for urban development.
Currently, the processing method of sludge mainly has agricultural, landfill, row sea, drying and incinerating, as construction material etc..Sludge
Moisture content excessively high transport caused by burning is difficult, volume is excessive is caused not to be that several in sludge handling process mainly ask
Topic.Moisture percentage in sewage sludge after mechanical dehydration is between 70%~80%, if directly burned, needs that auxiliary fuel ability is added
Maintain burning；And when the moisture content of sludge is reduced to 5%, the calorific value of sludge can reach 8.4~19MJ/kg, therefore burn drying
Sludge afterwards, without additional addition fuel.In addition, the sludge after dry（Below moisture content 30%）In stable state, Bu Huiyin
It is mouldy for microbial action, smelly.Therefore, it is in sludge handling process to be dried to sludge, reduce moisture percentage in sewage sludge
Committed step.
Drying sludge is the more universal method for sludge treatment used.It is generally first used in the processing disposal process of sludge
Mechanical dehydration takes off moisture content to 80% or so, then by sludge carry out desiccation to moisture content be 30~50% between, be finally sent into
It burns and completes Treatment of Sludge.
The ordinary hot dry technology of sludge, it includes convection drying（Convection current）Or contact drying（Conduction）.The heat of sludge is dry
Dry technology is most commonly used conventional drying techniques.The direct heated drying method of sludge refers to passing through thermal medium（Hot-air, combustion
Gas, steam etc.）It is in direct contact and mixes with wet mud, it is only 5~15% to promote in sludge that moisture is finally obtained moisture content by thermal evaporation
Dewatered sludge product.Thermal medium low speed provides latent heat needed for moisture evaporation in sludge and takes away what evaporation generated by sludge blanket
Gas, this process can take away partial heat, reduce the thermal efficiency of system, and generate harmful tail gas.Sludge need to be with after processing
Thermal medium detaches, troublesome in poeration.The contact drying method of sludge refers to that thermal medium transfers heat to wet mud by heat exchanger,
Promote in sludge moisture by thermal evaporation.Due to thermal medium（Steam, oil etc.）It is not in direct contact with sludge, eliminates thermal medium and dirt
The later separation step of mud, but indirect heat transfer also makes efficiency of thermal transfer relatively relatively low.Sludge drying mechanism traditional at present is also deposited
It is bad in drying efficiency and the problem of will produce secondary pollution in the drying process, therefore also need to study this.
Invention content
The present invention solves the technical problem of：It is bad for traditional sludge drying device drying efficiency and dried
The problem of will produce secondary pollution in journey provides a kind of sludge drying mechanism.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
A kind of sludge drying mechanism, including stock chest 1, pump 2, pipeline 3, drying sludge case 4, sieve 5, dry agitating device 6, gear
Plate 7, discharge bucket 8, discharge port 9, material collecting tank 10, wind turbine 11, ventilation duct 12, dehydrating breather 13, motor 14, shaft 15 stir shell 16,
Electric heater unit 17, stirring sheet 18；
1 right side connecting pipe 3 of the stock chest；Setting pump 2 in the pipeline 3；3 right side connection drying sludge case 4 of the pipeline；
Sieve 5, dry agitating device 6, baffle 7, discharge bucket 8, discharge port 9 are disposed in the drying sludge case 4 from top to bottom
With material collecting tank 10；The dry agitating device 6 stirs shell 16, electric heater unit 17 by machine 14, shaft 15, and stirring sheet 18 is constituted；
4 left side of the drying sludge case connects ventilation duct 12；Wind turbine 11 and dehydrating breather 13 are provided in the ventilation duct 12.
The pump 2 is centrifugal sludge pump, any one in sludge screw pump or sludge impeller pump.
The sieve 5 is vibration screen；The sieve hole is 3~5mm.
There are two the dry agitating device 6 is correspondingly arranged；6 spacing of dry agitating device is 3~5cm.
The baffle 7 is removable baffle plate.
Drier is filled in the dehumidifier 13；The drier is by soda lime and calcium chloride mass ratio 1：3~1：5 is mixed
Conjunction configures.
The stirring shell 16 is set as rough surface.
The stirring sheet 18 is auger piece；Angle is 40~50 ° between the stirring sheet 18 and stirring shell 16；It is described to stir
It mixes piece 18 and is set as smooth surface.
The beneficial effects of the invention are as follows：
Raw sludge slurry is placed in stock chest, then turns on pump, conveyed to drying sludge case dirty by technical solution of the present invention first
Mud, sludge pass through sieve, and since sieve is set as vibration screen, sludge passes through the vibration sub-sieve of sieve so that sludge is uniform
Ground is distributed in dry agitating device surface, and sludge obtains thermally equivalent, and the drying efficiency of device is improved, to improve dress
Secondly the working efficiency set opens motor, the dry agitating device of motor control is started dry stirring operation, stirred due to dry
There are two device settings, during the work time, is rotated simultaneously by two dry agitating devices, on the one hand, make the water in sludge
Divide evaporation, realize the evenly drying of sludge, on the other hand, avoids sludge and consolidated on dry agitating device surface, so that
The working efficiency of device gets a promotion, and again, opens wind turbine, a large amount of sour gas is will produce during drying sludge and is had
Machine gas, by the way that soda lime is arranged in dehumidifier, while playing exsiccation, soda lime can be with the sour gas in system
Body and organic gas reaction, to effectively remove sour gas and organic gas, effectively prevent the secondary of drying sludge process
Pollution.
Description of the drawings
Fig. 1 is sludge drying mechanism structural schematic diagram of the present invention；
Fig. 2 is sludge drying mechanism sieve detail view of the present invention；
Fig. 3 is that sludge drying mechanism of the present invention dries agitating device detail view.
Wherein, 1, stock chest；2, it pumps；3, pipeline；4, drying sludge case；5, sieve；6, dry agitating device；7, baffle；
8, discharge bucket；9, discharge port；10, material collecting tank；11, wind turbine；12, ventilation duct；13, dehydrating breather；14, motor；15, shaft；16, it stirs
Mix shell；17, electric heater unit；18, stirring sheet.
Specific implementation mode
A kind of sludge drying mechanism, including stock chest 1, pump 2, pipeline 3, drying sludge case 4, sieve 5, dry agitating device
6, baffle 7, discharge bucket 8, discharge port 9, material collecting tank 10, wind turbine 11, ventilation duct 12, dehydrating breather 13, motor 14, shaft 15, stirring
Shell 16, electric heater unit 17, stirring sheet 18；1 right side connecting pipe 3 of the stock chest；Setting pump 2 in the pipeline 3；The pipe
3 right side connection drying sludge case 4 of road；Sieve 5, dry agitating device are disposed in the drying sludge case 4 from top to bottom
6, baffle 7, discharge bucket 8, discharge port 9 and material collecting tank 10；The dry agitating device 6 stirs shell 16, electricity by machine 14, shaft 15
Heating device 17, stirring sheet 18 are constituted；4 left side of the drying sludge case connects ventilation duct 12；It is provided in the ventilation duct 12
Wind turbine 11 and dehydrating breather 13；When the present invention works, first, raw sludge slurry is placed in stock chest 1, pump 2 is then turned on, to sludge
Drying box 4 conveys sludge slurry, then opens motor 14, motor control drying agitating device 6 starts dry Beater operator and makees, then opens
Wind turbine 11 after the completion of operation to be dried, opens baffle 7, and the sludge after drying enters discharge port 9 by discharge bucket 8, subsequently enters
Material collecting tank 10 is collected, that is, completes drying operation.It is described to pump 2 for centrifugal sludge pump, in sludge screw pump or sludge impeller pump
Any one.The sieve 5 is vibration screen.The sieve hole is 3~5mm.The dry agitating device 6 is correspondingly arranged on
Two.6 spacing of dry agitating device is 3~5cm.The baffle 7 is removable baffle plate.It is filled in the dehumidifier 13
Drier.The drier is by soda lime and calcium chloride mass ratio 1：3~1：5 mixed configurations form.The stirring shell 16 is arranged
For rough surface.The stirring sheet 18 is auger piece.Angle is 40~50 ° between the stirring sheet 18 and stirring shell 16.Institute
It states stirring sheet 18 and is set as smooth surface.
Claims (8)
1. a kind of sludge drying mechanism, it is characterised in that：Including stock chest（1）, pump（2）, pipeline（3）, drying sludge case（4）,
Sieve（5）, dry agitating device（6）, baffle（7）, discharge bucket（8）, discharge port（9）, material collecting tank（10）, wind turbine（11）, ventilation
Pipe（12）, dehydrating breather（13）, motor（14）, shaft（15）, stir shell（16）, electric heater unit（17）, stirring sheet（18）；
The stock chest（1）Right side connecting pipe（3）；The pipeline（3）Middle setting pump（2）；The pipeline（3）Right side connection is dirty
Mud drying box（4）；The drying sludge case（4）In be disposed with sieve from top to bottom（5）, dry agitating device（6）, baffle
（7）, discharge bucket（8）, discharge port（9）And material collecting tank（10）；The dry agitating device（6）By machine（14）, shaft（15）, stirring
Shell（16）, electric heater unit（17）, stirring sheet（18）It constitutes；The drying sludge case（4）Left side connects ventilation duct（12）；It is described
Ventilation duct（12）In be provided with wind turbine（11）And dehydrating breather（13）.
2. a kind of sludge drying mechanism according to claim 1, it is characterised in that：The pump（2）It is dirty for centrifugal sludge pump
Any one in mud screw pump or sludge impeller pump.
3. a kind of sludge drying mechanism according to claim 1, it is characterised in that：The sieve（5）For vibration screen；It is described
Sieve hole is 3~5mm.
4. a kind of sludge drying mechanism according to claim 1, it is characterised in that：The dry agitating device（6）Correspondence is set
There are two setting；The dry agitating device（6）Spacing is 3~5cm.
5. a kind of sludge drying mechanism according to claim 1, it is characterised in that：The baffle（7）For removable baffle plate.
6. a kind of sludge drying mechanism according to claim 1, it is characterised in that：The dehumidifier（13）In be filled with drying
Agent；The drier is by soda lime and calcium chloride mass ratio 1：3~1：5 mixed configurations form.
7. a kind of sludge drying mechanism according to claim 1, it is characterised in that：The stirring shell（16）It is set as coarse table
Face.
8. a kind of sludge drying mechanism according to claim 1, it is characterised in that：The stirring sheet（18）For auger
Piece；The stirring sheet（18）With stirring shell（16）Between angle be 40~50 °；The stirring sheet（18）It is set as smooth surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810363630.3A CN108298795A (en) | 2018-04-22 | 2018-04-22 | A kind of sludge drying mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810363630.3A CN108298795A (en) | 2018-04-22 | 2018-04-22 | A kind of sludge drying mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108298795A true CN108298795A (en) | 2018-07-20 |
Family
ID=62847484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810363630.3A Withdrawn CN108298795A (en) | 2018-04-22 | 2018-04-22 | A kind of sludge drying mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108298795A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109928598A (en) * | 2019-03-28 | 2019-06-25 | 北京科技大学 | Sludge deep drying method and system based on air dielectric circulation |
-
2018
- 2018-04-22 CN CN201810363630.3A patent/CN108298795A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109928598A (en) * | 2019-03-28 | 2019-06-25 | 北京科技大学 | Sludge deep drying method and system based on air dielectric circulation |
| CN109928598B (en) * | 2019-03-28 | 2020-12-18 | 北京科技大学 | Sludge deep drying method and system based on air medium circulation |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180720 |
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| WW01 | Invention patent application withdrawn after publication |