CN108373255A - Circulating sludge drying device and drying method for sludge in a kind of vapor - Google Patents
Circulating sludge drying device and drying method for sludge in a kind of vapor Download PDFInfo
- Publication number
- CN108373255A CN108373255A CN201810494077.7A CN201810494077A CN108373255A CN 108373255 A CN108373255 A CN 108373255A CN 201810494077 A CN201810494077 A CN 201810494077A CN 108373255 A CN108373255 A CN 108373255A
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- vapor
- sludge
- dry reactor
- circulating
- drying device
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- 239000010802 sludge Substances 0.000 title claims abstract description 78
- 238000001035 drying Methods 0.000 title claims abstract description 63
- 238000012546 transfer Methods 0.000 claims abstract description 26
- 238000003756 stirring Methods 0.000 claims abstract description 20
- 238000001704 evaporation Methods 0.000 claims description 11
- 230000008020 evaporation Effects 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 4
- 230000006698 induction Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000010865 sewage Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The present invention proposes circulating sludge drying device in a kind of vapor, belongs to technical field of sludge treatment.Circulating sludge drying device includes dry reactor in the vapor, and the blender for stirring sludge is equipped in dry reactor, and the top of dry reactor is equipped with the motor for driving blender work；The top of dry reactor is equipped with feed inlet and steam outlet pipe, and the bottom of dry reactor is equipped with discharge port and steam inlet pipe；Circulating fan, the vapor heater for conveying vapor are equipped on the outside of dry reactor, steam outlet pipe, circulating fan, vapor heater pass sequentially through transfer pipeline with steam inlet pipe and be connected.Described device is used for drying sludge.
Description
Technical field
The invention belongs to drying device and drying means correlative technology fields, dirty more particularly, to being recycled in a kind of vapor
Mud drying device and drying means.
Background technology
With the development of the social economy, to preserve the ecological environment, sustainable development is realized, country is to sewage disposal height weight
Depending on, all kinds of city domestic sewages, industrial wastewater have to pass through processing it is up to standard after could discharge.As the spin-off sludge of sewage,
Yield is also constantly rising in recent years, and 100% city, the only generation of municipal sewage sludge are reached to treatment rate of domestic sewage
Amount (moisture content 98%) is much higher than the house refuse amoun of city dweller's generation, even if being at moisture content through dehydration all
80% mud cake, amount still may be the 40%-60% of house refuse amoun, and therefore, municipal sludge is that modern city generates
Important waste.
Traditional drying method for sludge there is a problem of very much.Such as rotary drying processing method, equipment occupation space is big, soil
Of high cost, high energy consumption when Drying works is built, drying efficiency is relatively low；Paddle Drying technique, it is short etc. there are shaft service life
Problem；Fluid bed drying process is very sensitive to the composition transfer of sludge, often result in heat exchange in fluid bed cannot smoothly into
Row.Therefore, a kind of efficient sludge drying mechanism of design and drying means are necessary.
Invention content
Circulating sludge drying device and drying means in a kind of vapor of present invention proposition, to solve drying sludge efficiency not
Height, the technical problems such as drying device complexity.
The technical proposal of the invention is realized in this way：
Circulating sludge drying device in a kind of vapor, including dry reactor, vapor heater, steam for conveying water
The circulating fan of gas, the interior blender being equipped with for stirring sludge of the dry reactor, the top of the dry reactor is set
There are the motor for driving blender work, the top of the dry reactor to be equipped with feed inlet and steam outlet pipe, the dry reactor
Bottom be equipped with discharge port and steam inlet pipe；The steam outlet pipe, circulating fan, vapor heater and steam inlet pipe pass sequentially through conveying
Pipeline is connected.
Further, it is communicated on the transfer pipeline between the steam outlet pipe and circulating fan for discharging extra vapor
Auxiliary piping, the auxiliary piping be equipped with electromagnetic switch valve.
Further, it is equipped with pressure sensor in the dry reactor, controller is equipped on the outside of the dry reactor,
The pressure sensor, controller are electrically connected with electromagnetic switch valve.
Further, the outer sheath of the dry reactor is equipped with heating device.
Further, the heating device is hot oil heater.
Further, the blender includes agitating shaft and the stirring blade that is arranged on agitating shaft, and the agitating shaft is worn
The one end for going out dry reactor is connected with the output end of motor, and the agitating shaft and stirring blade are hollow and interconnected
Setting, the stirring blade are equipped with venthole；The steam inlet pipe is inserted in agitating shaft.
Further, the venthole is located at the bottom of stirring blade.
Further, the outer sheath of the transfer pipeline is equipped with insulating layer.
Further, the bottom end of the dry reactor is equipped with support column.
Further, the vapor of the transfer pipeline conveying is evaporated from sludge obtains.
The present invention also proposes a kind of method carrying out drying sludge using above-mentioned sludge drying mechanism, includes the following steps：
Step (1)：Sludge is continued into from feed inlet into dry reactor, and the moisture evaporation in sludge is at vapor；
Step (2)：The vapor evaporated is sent to circulating fan by transfer pipeline, exports and passes after circulating fan
It send to vapor heater；
Step (3)：Vapor heater will again be conveyed by transfer pipeline via steam inlet pipe after vapor heat temperature raising
It returns in dry reactor, the vapor of high temperature promotes more moisture evaporations at vapor, and ringing does sludge
It is dry；
Step (4)：Sludge after drying is persistently discharged by the discharge port of dry reactor bottom.
Further, in the step (2), the pressure in pressure sensor induction dry reactor in dry reactor
Power is controlled the work of electromagnetic switch valve by controller, extra vapor is discharged when pressure value reaches critical value.
Compared with the existing technology, circulating sludge drying device has the advantage that in vapor of the invention：
Circulating sludge drying device is simple in structure in vapor proposed by the present invention, and occupation area of equipment is small；Utilize sludge
In the vapor that is evaporated as a heat transfer medium, the problem of not introducing exotic mediums, " secondary pollution " is not present, meet resource
The requirement of change；Vapor is in direct contact with sludge, greatly improves drying efficiency；Drying device and drying process are simplified,
Economic benefit is greatly improved, the cost of Treatment of Sludge is reduced.
Description of the drawings
The attached drawing for constituting the part of the present invention is used to provide further understanding of the present invention, schematic reality of the invention
Example and its explanation are applied for explaining the present invention, is not constituted improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is circulating sludge drying device structural schematic diagram in vapor described in the embodiment of the present invention.
Reference sign：
1- dry reactors；2- support columns；3- motors；4- feed inlets；5- steam outlet pipes；6- discharge ports；7- steam inlet pipes；8- is followed
Ring wind turbine；9- vapor heaters；10- auxiliary pipings；11- electromagnetic switch valves；12- agitating shafts；13- stirring blades.
Specific implementation mode
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Circulating sludge drying device in a kind of vapor, including dry reactor 1, the bottom end of the dry reactor 1 are set
There is support column 2, the blender for stirring sludge is equipped in the dry reactor 1, the top of the dry reactor 1 is equipped with
Drive the motor 3 of blender work；The top of the dry reactor 1 is equipped with feed inlet 4 and steam outlet pipe 5, the dry reaction
The bottom end of device 1 is equipped with discharge port 6 and steam inlet pipe 7；
Be equipped with circulating fan 8, the vapor heater 9 for conveying vapor on the outside of the dry reactor, it is described go out
Steam pipe 5, circulating fan 8, vapor heater 9 pass sequentially through transfer pipeline with steam inlet pipe 7 and are connected.
Circulating sludge drying device in vapor proposed by the present invention, the floor space of equipment is small, simplifies drying device
And drying process, drying efficiency is improved, the cost of Treatment of Sludge is reduced.
It is steamed as shown, being communicated on transfer pipeline between the steam outlet pipe 5 and circulating fan 8 for discharging superfluous water
The auxiliary piping 10 of gas, the auxiliary piping 10 are equipped with electromagnetic switch valve 11.
1 is equipped with pressure sensor in the dry reactor, and 1 outside of the dry reactor is equipped with controller, the pressure
Force snesor, controller are electrically connected with electromagnetic switch valve 11.Pressure sensor in dry reactor 1 incudes dry reactor 1
Interior pressure controls the work of electromagnetic switch valve by controller when pressure value reaches critical value, and extra water is discharged and steams
Gas.In the embodiment of the present invention, controller can be the model SD45-M intelligent controllers that Shanghai electricity section genuine is produced, can also
The controller of this function can be realized for other.Controller inductive pressure transducer signal and to control electromagnetic switch threshold switch be existing
The routine techniques of technology is that those skilled in the art are easy to implement, and Gu Wenzhong is not unfolded specifically.
The outer sheath of the dry reactor 1 is equipped with heating device.For being heated to dry reactor 1, further
Improve drying efficiency.The heating device can be hot oil heater.
The blender includes agitating shaft 12 and the stirring blade 13 that is arranged on agitating shaft 12, and the agitating shaft 12 is pierced by
One end of dry reactor 1 is connected with the output end of motor 3, and the agitating shaft 12 and stirring blade 13 are hollow and mutual
Connection setting, the stirring blade 13 are equipped with venthole；The steam inlet pipe 7 is plugged in agitating shaft 12.
In embodiments of the present invention, agitating shaft 12 and stirring blade 13 are hollow setting, and the setting that is interconnected, the knot
Structure makes blender service life long.Vapor passes through the venthole on stirring blade 13 after steam inlet pipe 7 enters agitating shaft 12
Dry sludge is transmitted in dry reactor 1.Be conducive to contact of the vapor with sludge to be smoothed out, make full use of the water of high temperature
Steam promotes more moisture evaporations at vapor, reduces energy consumption.
The stirring blade 13 includes but not limited to hollow taper blade, U-shaped blade etc..
The venthole is located at the bottom of stirring blade 13.Vapor after heating travelled upwardly after being come out from venthole from
And realize the drying to sludge.
The quantity at least two of the support column 2 can be two, three or four etc..
The outer sheath of the transfer pipeline is equipped with insulating layer.Heat loss is further prevented, drying efficiency is improved.
The vapor of the transfer pipeline conveying is evaporated from sludge to be obtained.
As shown in Figure 1, when work, sludge to be dried is passed into from feed inlet 4 in dry reactor 1 first, simultaneously
Motor 3 is opened, sludge is stirred using blender, continues heat supply and blender 7 in 1 outside heating device of dry reactor
Collective effect under, moisture evaporation in sludge is at vapor, and the steam outlet pipe 5 for passing through 1 top of dry reactor is discharged, vapor
It is transported in circulating fan 8 by transfer pipeline, vapor is transported to vapor heater by circulating fan 8 by transfer pipeline
In 9, after 9 heat temperature raising of vapor heater, then it is transmitted to the steam inlet pipe 7 of 1 bottom of dry reactor, be passed into again dry
In dry reactor 1, one cycle is so far completed.During this, the vapor for the high temperature being again introduced into dry reactor 1 can make
More moisture evaporations so move in circles and sludge are dried at vapor, and the sludge after drying is continued from discharging
Mouth 8 is discharged.During continuous cycle, the pressure in device can be increasing with the increase of vapor, when pressure arrives
Up to a critical value P1When, controller senses the pressure in dry reactor 1 by pressure sensor and controls electromagnetic switch
Valve is opened, and extra vapor is discharged.
Sludge drying mechanism provided by the invention uses vapor inner loop mode, is steamed using the water being evaporated in sludge
The problem of gas as a heat transfer medium, does not introduce exotic mediums, and there is no " secondary pollutions ", meets the requirement of recycling；And water
Steam is in direct contact with sludge, greatly improves drying efficiency.Drying device and drying process are simplified, equipment is reduced
Floor space.
The present invention also proposes a kind of method carrying out drying sludge using above-mentioned sludge drying mechanism, includes the following steps：
Step (1)：Sludge is continued into from feed inlet into dry reactor, and the moisture evaporation in sludge is at vapor；
Step (2)：The vapor evaporated is sent to circulating fan by transfer pipeline, exports and passes after circulating fan
It send to vapor heater；
Step (3)：Vapor heater will again be conveyed by transfer pipeline via steam inlet pipe after vapor heat temperature raising
It returns in dry reactor, the vapor of high temperature promotes more moisture evaporations at vapor, and ringing does sludge
It is dry；
Step (4)：Sludge after drying is persistently discharged by the discharge port of dry reactor bottom end.
In the step (2), the pressure in pressure sensor induction dry reactor 1 in dry reactor 1 works as pressure
When value reaches critical value, the work of electromagnetic switch valve is controlled by controller, extra vapor is discharged.
Sludge drying mechanism proposed by the invention takes full advantage of in sludge and evaporates compared with other heat transfer techniques
Vapor out as a heat transfer medium, effectively reduces drying cost, has significant economic benefit and environmental benefit.
Embodiment
As shown in Figure 1, when work, moisture content is passed into 80% or so sludge to be dried from feed inlet 4 first
In dry reactor 1, while motor 3 is opened, sludge is stirred using blender, in 1 outside heating dress of dry reactor
Under the collective effect for setting lasting heat supply and blender 7, the moisture evaporation in sludge passes through 1 top of dry reactor at vapor
Steam outlet pipe 5 be discharged, vapor is transported to by transfer pipeline in circulating fan 8, and vapor is passed through delivery pipe by circulating fan 8
Road is transported in vapor heater 9, after 9 heat temperature raising of vapor heater, then is transmitted to 1 bottom of dry reactor
Steam inlet pipe 7 is passed into dry reactor 1, so far completes one cycle again.During this, it is again introduced into dry reactor 1
The vapor of interior high temperature can make more moisture evaporations at vapor, and so moving in circles is dried sludge, and will do
Sludge after dry continues to be discharged from discharge port 8, and the moisture content of sludge is about 10% or so at this time.During continuous cycle,
Pressure in device can be increasing with the increase of vapor, when pressure reaches a critical value P1When, controller passes through
Pressure sensor senses the pressure in dry reactor 1 and controls electromagnetic switch valve opening, discharges extra vapor.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (10)
1. circulating sludge drying device in a kind of vapor, it is characterised in that：Including dry reactor, vapor heater, use
In the circulating fan of conveying vapor, the interior blender being equipped with for stirring sludge of the dry reactor, the dry reaction
The top of device is equipped with the motor for driving blender work, and the top of the dry reactor is equipped with feed inlet and steam outlet pipe, described
The bottom of dry reactor is equipped with discharge port and steam inlet pipe；The steam outlet pipe, circulating fan, vapor heater and steam inlet pipe according to
It is secondary to be connected by transfer pipeline.
2. circulating sludge drying device in vapor according to claim 1, which is characterized in that the steam outlet pipe and cycle
The auxiliary piping for discharging extra vapor is communicated on transfer pipeline between wind turbine, the auxiliary piping is equipped with electromagnetism
Switch valve.
3. circulating sludge drying device in vapor according to claim 2, which is characterized in that in the dry reactor
Equipped with pressure sensor, controller, the pressure sensor, controller and electromagnetic switch valve are equipped on the outside of the dry reactor
Electrical connection.
4. circulating sludge drying device in vapor according to claim 1, which is characterized in that the dry reactor
Outer sheath is equipped with heating device.
5. circulating sludge drying device in vapor according to claim 4, which is characterized in that the heating device is to lead
Hot oil heating device.
6. circulating sludge drying device in vapor according to claim 1, which is characterized in that the blender includes stirring
The stirring blade mixed axis and be arranged on agitating shaft, the agitating shaft are pierced by one end of dry reactor and the output end phase of motor
Even, the agitating shaft and stirring blade are hollow and interconnected setting, and the stirring blade is equipped with venthole；It is described
Steam inlet pipe is inserted in agitating shaft.
7. circulating sludge drying device in vapor according to claim 1, which is characterized in that outside the transfer pipeline
Side is arranged with insulating layer.
8. circulating sludge drying device in vapor according to claim 1, which is characterized in that the transfer pipeline conveying
Vapor evaporate and obtain from sludge.
9. a kind of method carrying out drying sludge using claim 1-8 any one of them sludge drying mechanisms, feature exist
In including the following steps：
Step (1)：Sludge is continued into from feed inlet into dry reactor, and the moisture evaporation in sludge is at vapor；
Step (2)：The vapor evaporated is sent to circulating fan by transfer pipeline, exports and is sent to after circulating fan
Vapor heater；
Step (3)：Vapor heater will be again transmitted back to by transfer pipeline via steam inlet pipe dry after vapor heat temperature raising
In dry reactor, the vapor of high temperature promotes more moisture evaporations at vapor, and sludge is dried in ringing；
Step (4)：Sludge after drying is persistently discharged by the discharge port of dry reactor bottom.
10. the method for drying sludge according to claim 9, which is characterized in that in the step (2), dry reactor
Pressure in interior pressure sensor induction dry reactor controls electromagnetism when pressure value reaches critical value by controller
Extra vapor is discharged in the work of switch valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810494077.7A CN108373255A (en) | 2018-05-22 | 2018-05-22 | Circulating sludge drying device and drying method for sludge in a kind of vapor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810494077.7A CN108373255A (en) | 2018-05-22 | 2018-05-22 | Circulating sludge drying device and drying method for sludge in a kind of vapor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108373255A true CN108373255A (en) | 2018-08-07 |
Family
ID=63033562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810494077.7A Pending CN108373255A (en) | 2018-05-22 | 2018-05-22 | Circulating sludge drying device and drying method for sludge in a kind of vapor |
Country Status (1)
| Country | Link |
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| CN (1) | CN108373255A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112516945A (en) * | 2020-11-27 | 2021-03-19 | 江苏嘉逸医药有限公司 | Device and method for purifying parecoxib sodium |
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| JP2003287371A (en) * | 2002-03-25 | 2003-10-10 | Kidai Kim | Spiral axial flow type hot air dryer |
| CN101628779A (en) * | 2009-08-21 | 2010-01-20 | 北京大学 | Method and device for drying sludge by utilizing high-temperature steam |
| CN205443025U (en) * | 2016-01-07 | 2016-08-10 | 浙江蓝极膜技术有限公司 | Sludge drying treatment device |
| CN106365407A (en) * | 2016-10-03 | 2017-02-01 | 辛后安 | MVR (mechanical vapor recompression) drying system |
| CN107101480A (en) * | 2017-06-04 | 2017-08-29 | 芜湖市三山区绿色食品产业协会 | Cultivation general-purpose type feed drying device and its operating method |
| CN107484823A (en) * | 2017-09-01 | 2017-12-19 | 石岩 | A kind of stirring-type drying device of cereal |
| CN208414199U (en) * | 2018-05-22 | 2019-01-22 | 海若斯（北京）环境科技有限公司 | Circulating sludge drying device in a kind of vapor |
-
2018
- 2018-05-22 CN CN201810494077.7A patent/CN108373255A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003287371A (en) * | 2002-03-25 | 2003-10-10 | Kidai Kim | Spiral axial flow type hot air dryer |
| CN101628779A (en) * | 2009-08-21 | 2010-01-20 | 北京大学 | Method and device for drying sludge by utilizing high-temperature steam |
| CN205443025U (en) * | 2016-01-07 | 2016-08-10 | 浙江蓝极膜技术有限公司 | Sludge drying treatment device |
| CN106365407A (en) * | 2016-10-03 | 2017-02-01 | 辛后安 | MVR (mechanical vapor recompression) drying system |
| CN107101480A (en) * | 2017-06-04 | 2017-08-29 | 芜湖市三山区绿色食品产业协会 | Cultivation general-purpose type feed drying device and its operating method |
| CN107484823A (en) * | 2017-09-01 | 2017-12-19 | 石岩 | A kind of stirring-type drying device of cereal |
| CN208414199U (en) * | 2018-05-22 | 2019-01-22 | 海若斯（北京）环境科技有限公司 | Circulating sludge drying device in a kind of vapor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112516945A (en) * | 2020-11-27 | 2021-03-19 | 江苏嘉逸医药有限公司 | Device and method for purifying parecoxib sodium |
| CN112516945B (en) * | 2020-11-27 | 2022-05-20 | 江苏嘉逸医药有限公司 | Device and method for purifying parecoxib sodium |
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