CN108117241A - A kind of mud drying device - Google Patents
A kind of mud drying device Download PDFInfo
- Publication number
- CN108117241A CN108117241A CN201810107180.1A CN201810107180A CN108117241A CN 108117241 A CN108117241 A CN 108117241A CN 201810107180 A CN201810107180 A CN 201810107180A CN 108117241 A CN108117241 A CN 108117241A
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- China
- Prior art keywords
- steam
- babinet
- sludge
- drying device
- condensation
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- 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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Classifications
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- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
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- 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)
- Treatment Of Sludge (AREA)
- Drying Of Solid Materials (AREA)
Abstract
A kind of mud drying device, including feed hopper, feed screw group, babinet and discharge port etc..Wherein, feed hopper and discharge port are fixed on babinet, and feed screw group is located at feeding funnel bottom part to aid in feeding；Babinet periphery is equipped with steam jacket, steam inlet and condensation-water drain, and steam jacket forms a steam channel；Desiccation chamber is set in babinet, desiccation chamber is connected with feed hopper and discharge port, and inside leaves enough spaces and the moisture diffusion of sludge drying generation is made to go out；Push screw rod group is located at desiccation intracavitary and forms another steam channel for hollow structure.Apparatus of the present invention also use the partial sludge after desiccation to return to feed inlet and with pending wet mud are pre-mixed that the total moisture content of feed sludge is controlled to avoid the problem that sludge is viscous below 40% when feeding.The moisture percentage in sewage sludge discharged after apparatus of the present invention are handled can generally drop to 5% or so, so that the volume of sludge is substantially reduced, achieve the purpose that diminishing, volume reduction and innoxious, convenient for storing and transporting.
Description
Technical field
The present invention relates to sludge drying fields, particularly a kind of mud drying device.
Background technology
In recent years, with China's rapid development of economy and the quickening of urbanization process, the municipal drainage and dirt in China
Water process infrastructure construction has been made significant headway, and the quantity of sewage treatment plant is substantially improved, corresponding sewage disposal energy
Power is also substantially improved, and at the same time, the yield of excess sludge also drastically increases therewith.
Excess sludge refers to the discarded object of generated solid-state, semisolid and liquid in sewage disposal process, is at sewage
The inevitable outcome of factory is managed, contains nutrients, heavy metal and pathogenic bacteria and the pathogens such as substantial amounts of organic matter, abundant nitrogen phosphorus
Deng being frequently accompanied by foul odour, and enormous amount, rapid development is urban waste urgently to be resolved hurrily.
The processing of municipal sludge can be divided into factory to be handled outside processing and factory.Processing refers to concentrate, be dehydrated in the factory of sludge, wraps
It includes Anaerobic Digestion and obtains the pre- place that general moisture content is 75%~80% (belt type dehydration 80%, centrifugal dehydration 75%) mud cake
Reason process.Processing refers to carry out appropriate disposal, common skill again after the mud cake handled in factory is transported outward outside the factory of sludge
Art includes landfill, burning, compost, digestion, desiccation etc..Specific resistance to filtration method is varied, but exists in various degree
Defect, for long-range, while the harmless disposal of realization sludge, it is also contemplated that whether being conducive to keep ecological balance, reducing
Processing cost promotes the problems such as development of circular economy.
The sludge that domestic urban wastewater treatment firm generates, is generally set by belt machine, centrifuge or plate and frame filter press etc.
After standby dehydration, handled using landfill, compost, the natural disposal options such as desiccation or anhydration and incineration, but under normal circumstances, dehydration
Moisture content of the cake afterwards is high, mud amount is big, and disposal is more difficult and cost of disposal is too high.At present, it is more since moisture percentage in sewage sludge is high
Number sludge is not disposed properly, and thus caused secondary pollution problem can not be ignored.
Chinese utility model patent (CN203319838U) discloses a kind of sludge solidification processing agitator, and principle is logical
Cross that stirring makes sludge and additive is mixed curing so as to fulfill sludge.The device is to be consolidated sludge using additive
Change, but the device is difficult to remove the moisture in sludge, and also the sludge after curing can not be further utilized.
Due to moisture percentage in sewage sludge at 40% or so there are a stagnant zone, there is resistances for this further desiccation to sludge
Hinder effect, so as to be difficult to be effectively reduced the moisture content of sludge；In addition, the cost of sludge drying is also higher.
The content of the invention
It is a primary object of the present invention to overcome drawbacks described above of the prior art, propose that a kind of desiccation effect is good, consumes energy
Low, energy-saving and environment-friendly mud drying device.
The present invention adopts the following technical scheme that：
A kind of mud drying device, including feed hopper, feed screw group, babinet and discharge port；Wherein, feed hopper and discharging
Mouth is fixed on babinet, and feed screw group is located at feeding funnel bottom part to aid in feeding, it is characterised in that：Babinet periphery, which is equipped with, steams
Vapour chuck, steam inlet and condensation-water drain；The steam jacket forms a steam channel, and superheated steam is from steam inlet during operation
Into from condensation-water drain discharge after exchange heat；Desiccation chamber is set in the babinet, which connects with feed hopper and discharge port
It is logical, and surrounded by steam jacket；Push screw rod group is further included, before which is located at desiccation intracavitary to push sludge
Row, the push screw rod group are hollow structure to form another steam channel.
Including there are two steam inlet and two condensation-water drains, one of steam inlet and condensation-water drain with it is described
Steam jacket is connected, another steam inlet and condensation-water drain are connected with the push screw rod group.
The steam inlet is located at the babinet close to the feed hopper one side, and the condensation-water drain is located at the babinet
Close to the discharge port one side.
The push screw rod group is made of two push screw rods；Shaft and several spiral shell of the every push screw rod for hollow structure
Blade, several flights are fixed in corresponding shaft, two shafts be arranged in parallel and make two push screw rod spirals
Piece intermeshes.The direction of rotation of two shafts moves ahead on the contrary, pushing material in a manner of to squeezing.
The shaft is set there are two rotary joint, is connected respectively with the steam inlet and condensation-water drain one-to-one corresponding.
The shaft is equipped with mating high-temperature bearing.
Control valve is equipped on the steam inlet and the condensation-water drain.
If having further included dry temperature sensor, if being somebody's turn to do dry temperature sensor is installed on the feed hopper, the discharge port, institute
It states in the middle part of desiccation chamber, the steam inlet and the condensation-water drain sentence monitoring temperature.
Insulating layer is equipped on the outside of the babinet.
The insulating layer is ceramic alumina fiber layer or other thermal insulation materials.
From the above-mentioned description of this invention, compared with prior art, the present invention has the advantages that：
1st, the moisture content of the sludge of the device of the invention discharge can be reduced to 5% or so, so that the volume of sludge is significantly
It reduces, achievees the purpose that diminishing, volume reduction and innoxious, convenient for storing and transporting.
2nd, the device of the invention, steam jacket are steam channel all the way, and push screw rod group is another way steam channel, spiral
Piece intermeshes, and considerably increases the contact area of shaft and sludge, improves heat transfer and desiccation effect.
3rd, the device of the invention, in drying process, by the temperature of specific position on temperature sensor monitors babinet, and
Display instrument centralized displaying, record are fed back to, facilitates monitoring desiccation process.
4th, the device of the invention, babinet outside are additionally provided with insulating layer, which is ceramic alumina fiber layer or other
Material is kept the temperature, to prevent that heat is excessive, so as to reach energy-saving effect.
5th, the device of the invention, the dewatered sludge part that can discharge discharge port return to feed hopper and pending wet dirt
Mud is mixed, and to control total moisture content of feed sludge below 40%, is avoided generating sludge retention area, is ensured drying process
Be smoothed out, and remaining sludge then send to landfill or be further processed.
Description of the drawings
Fig. 1 is front section view of the present invention；
Fig. 2 is the side sectional view of the present invention；
Wherein：1st, feed hopper, 2, feed screw group, 3, steam inlet, 4, temperature sensor, 5, condensation-water drain, 6, case
Body, 7, discharge port, 8, shaft, 9, flight, 10, desiccation chamber, 11, steam channel, 13, push screw rod group, 14, steam jacket.
Specific embodiment
Below by way of specific embodiment, the invention will be further described.
With reference to Fig. 1, Fig. 2, a kind of mud drying device, including babinet 6, feed hopper 1, feed screw group 2,7 and of discharge port
Push screw rod group 13 etc..The feed hopper 1 is fixed on babinet 6, and positioned at 6 one side roof part of babinet, it is another that discharge port 7 is located at babinet
Side bottom.
The feed screw group 2 is installed on 1 bottom of feed hopper to aid in feeding, including two feed screws, feed screw
Quantity is not unique or one.Every feed screw is equipped with shaft 8 and several flights 9, and several flights 9 are solid
Due in shaft 8.Two feed screws are arranged in parallel in the bottom of feed hopper 1, by the way that the rotation of shaft 8 is controlled to drive flight 9
Rotation send sludge to babinet 6.
6 periphery of babinet is equipped with steam jacket 14, steam inlet 3, condensation-water drain 5 and gas outlet, the steam jacket 14
In babinet 6, a desiccation chamber 10 is surrounded, which connects with feed hopper 1, discharge port 7 and gas outlet.Due to sludge
The moisture of drying process can evaporate, then 10 size of desiccation chamber, which can rationally design and retain certain space in desiccation top of chamber, supplies sludge
The moisture evaporation that desiccation generates, the moisture of evaporation are discharged from gas outlet, for example, the size of cavity for 3000mm × 250mm ×
400mm.Steam jacket 14 forms steam channel 11, and steam inlet 3, condensation-water drain 5 are connected with steam channel 11, steam inlet
3 are located at babinet 6 close to 1 one side roof part of feed hopper, and condensation-water drain 5 is located at babinet 6 close to 7 one side roof part of discharge port.Steam into
Control valve is equipped with to control and to repair on mouth 3 and condensation-water drain 5.
Pushing screw rod group 13 includes two push screw rods.Every push screw rod is equipped with shaft 8 and several flights 9, if should
Dry flight 9 is fixed in corresponding shaft 8, and for increasing the contact area with sludge, shaft is equipped with mating high temperature axis
Hold to prevent the influence of high temperature air inlet.In desiccation chamber 10, the shaft 8 of two push screw rods is arranged in parallel, and between flight 9
It intermeshes, is moved ahead by the way that shaft 8 is controlled to rotate flight 9 to squeezing with pushing sludge.The shaft 8 of the push screw rod group 13
It is hollow structure with flight 9, forms another steam channel 11, two steam channels, which can interconnect, is not also connected.
The present invention can be set there are two steam inlet 3 and two condensation-water drains 5, a steam inlet 3 and condensation-water drain 5
It is connected with steam jacket 14, another steam inlet 3 and condensation-water drain 5 are connected with pushing the shaft 8 of screw rod group 13.Shaft 8
If there are two rotary joint, which connects with steam inlet 3 and the one-to-one corresponding of condensation-water drain 5.
Further, if having further included dry temperature sensor 4, it is installed on babinet 6 to monitor if being somebody's turn to do dry temperature sensor 4
Temperature, and can concentrate to feed back in connected instrument and show, record.Installation site includes at charging on babinet 6, discharging
In the middle part of place, desiccation chamber 10, at steam inlet 3, at condensation-water drain 5 etc..The temperature sensor 4 is occasionally other using K-type thermoelectricity
Applicable temperature probe.
The babinet 6 of the present invention except at charging, at discharging, gas outlet, at steam inlet 3, in addition to condensation-water drain 5, be
Sealed set.The outside of babinet 6 is additionally provided with insulating layer, which is ceramic alumina fiber layer or other heat preservation materials, to prevent
Only heat is excessive, energy saving so as to reach.Feed screw group 2, push screw rod group 13 and several temperature sensing in apparatus of the present invention
Device 4 is controlled by control system, which is equipped with instrument, control button or operation interface etc., also controllable steam hair
The steam conveying of raw device, switch of control valve etc..
The operation principle of the present invention is as follows：
Sludge is put into feed hopper 1, under the action of feed screw group 2, sludge falls to the push screw rod in babinet 6
In group 13, push screw rod group 13 promotes sludge slowly to be moved in desiccation chamber 10.Superheated steam passes through steam entry 3 simultaneously,
The inside of push screw rod group 13 is sent into all the way, and another way is inputted in the steam channel 11 of steam jacket 14, to slowly on the move
Sludge is heated.During this, the water vapour for having exchanged heat is discharged from condensation-water drain 5, discharges the liquefaction water of generation
After collection, it is sent into steam generator and carries out cycling and reutilization.Moisture evaporation in sludge is discharged after coming out from gas outlet, discharging
The moisture content of the sludge of 7 discharge of mouth is reduced to 5% or so.During operation, the dewatered sludge part discharged from discharge port 7 returns to charging
Bucket 1 is mixed with pending wet mud, to control total moisture content of feed sludge below 40%, avoids generation sludge stagnant
Area is stayed, ensures being smoothed out for drying process, and remaining sludge is then sent to landfill or is further processed.
The desiccation degree of sludge depends on residence time of the sludge in desiccation chamber 10, and the residence time can be by adjusting dress
The rotating speed of the angle of inclination put and push screw rod group 13 is controlled.In drying process, pass through 4 monitoring case of temperature sensor
The temperature of specific position on body 6, and feed back to display instrument centralized displaying, record.
In the present invention, heating steam enters push screw rod and steam using superheated steam by steam entry 3
During 14 inside of chuck, in addition to discharging part sensible heat, when reaching saturation temperature, superheated steam can be in push screw rod and steam folder
Liquefaction condenses out in set 14, releases substantial amounts of latent heat, provides heat for the desiccation of sludge, the water condensed out then passes through condensation
Water out 5 is expelled to outside babinet 6.
The specific embodiment of the present invention is above are only, but the design concept of the present invention is not limited thereto, it is all to utilize this
Conceive the change that unsubstantiality is carried out to the present invention, the behavior for invading the scope of the present invention should all be belonged to.
Claims (10)
1. a kind of mud drying device, including feed hopper, feed screw group, babinet and discharge port；Wherein, feed hopper and discharge port
It is fixed on babinet, feed screw group is located at feeding funnel bottom part to aid in feeding, it is characterised in that：Babinet periphery is equipped with steam
Chuck, steam inlet and condensation-water drain；The steam jacket forms a steam channel, during operation superheated steam from steam inlet into
Enter, discharged after exchanging heat from condensation-water drain；Desiccation chamber is set in the babinet, which connects with feed hopper and discharge port,
And it is surrounded by steam jacket；Push screw rod group is further included, which is located at desiccation intracavitary and moves ahead to push sludge, should
Push screw rod group is hollow structure to form another steam channel.
2. a kind of mud drying device as described in claim 1, it is characterised in that：Including there are two steam inlet and two are cold
Condensate exports, and one of steam inlet and condensation-water drain are connected with the steam jacket, another steam inlet and condensation
Water out is connected with the push screw rod group.
3. a kind of mud drying device as described in claim 1, it is characterised in that：The steam inlet is located at the babinet and leans on
The nearly feed hopper one side, the condensation-water drain are located at the babinet close to the discharge port one side.
4. a kind of mud drying device as described in claim 1, it is characterised in that：The push screw rod group includes two push
Screw rod；Every push screw rod is fixed on for the shaft and several flights, several flights of hollow structure in corresponding shaft,
Two shafts are to be arranged in parallel and the flights of two push screw rods is made to intermesh, the direction of rotation of two shafts on the contrary, with
Material is pushed to crowded mode to move ahead.
5. a kind of mud drying device as claimed in claim 4, it is characterised in that:The shaft is set there are two rotary joint,
Two rotary joint connects respectively with the steam inlet and condensation-water drain one-to-one corresponding.
6. a kind of mud drying device as claimed in claim 4, it is characterised in that:The shaft is equipped with mating high temperature axis
It holds.
7. a kind of mud drying device as described in claim 1, it is characterised in that：The steam inlet and the condensed water go out
Control valve is equipped on mouthful.
8. a kind of mud drying device as described in claim 1, it is characterised in that：It, should if having further included dry temperature sensor
If dry temperature sensor be installed on the feed hopper, the discharge port, in the middle part of the desiccation chamber, the steam inlet and described cold
Condensate exit is with monitoring temperature.
9. a kind of mud drying device as described in claim 1, it is characterised in that：Insulating layer is equipped on the outside of the babinet.
10. a kind of mud drying device as claimed in claim 9, it is characterised in that：The insulating layer is fine for aluminium oxide ceramics
Tie up layer or other thermal insulation materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810107180.1A CN108117241A (en) | 2018-02-02 | 2018-02-02 | A kind of mud drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810107180.1A CN108117241A (en) | 2018-02-02 | 2018-02-02 | A kind of mud drying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108117241A true CN108117241A (en) | 2018-06-05 |
Family
ID=62233314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810107180.1A Pending CN108117241A (en) | 2018-02-02 | 2018-02-02 | A kind of mud drying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108117241A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109081542A (en) * | 2018-09-06 | 2018-12-25 | 江苏康乾环境科技有限公司 | Method for reducing influence of sludge viscous zone on sludge dewatering by using total mixed flow reactor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203095826U (en) * | 2013-02-17 | 2013-07-31 | 成都源创环保工程有限公司 | Sludge drying machine utilizing waste heat |
| CN104986937A (en) * | 2015-07-13 | 2015-10-21 | 江苏德立环保工程有限公司 | Chemical-sludge evaporating and drying machine |
| CN105417923A (en) * | 2015-12-16 | 2016-03-23 | 普利资环境科技（苏州）有限公司 | Sludge drying system |
| CN105417926A (en) * | 2015-12-31 | 2016-03-23 | 杭州隽琛环保有限公司 | Indirect sludge drying device adopting tubular rotary furnace |
| KR20170112326A (en) * | 2016-03-31 | 2017-10-12 | 이종권 | Apparatus for drying sludge |
| CN107540184A (en) * | 2016-06-29 | 2018-01-05 | 天华化工机械及自动化研究设计院有限公司 | A kind of sludge wedge shape blade dryer and its drying means |
-
2018
- 2018-02-02 CN CN201810107180.1A patent/CN108117241A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203095826U (en) * | 2013-02-17 | 2013-07-31 | 成都源创环保工程有限公司 | Sludge drying machine utilizing waste heat |
| CN104986937A (en) * | 2015-07-13 | 2015-10-21 | 江苏德立环保工程有限公司 | Chemical-sludge evaporating and drying machine |
| CN105417923A (en) * | 2015-12-16 | 2016-03-23 | 普利资环境科技（苏州）有限公司 | Sludge drying system |
| CN105417926A (en) * | 2015-12-31 | 2016-03-23 | 杭州隽琛环保有限公司 | Indirect sludge drying device adopting tubular rotary furnace |
| KR20170112326A (en) * | 2016-03-31 | 2017-10-12 | 이종권 | Apparatus for drying sludge |
| CN107540184A (en) * | 2016-06-29 | 2018-01-05 | 天华化工机械及自动化研究设计院有限公司 | A kind of sludge wedge shape blade dryer and its drying means |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109081542A (en) * | 2018-09-06 | 2018-12-25 | 江苏康乾环境科技有限公司 | Method for reducing influence of sludge viscous zone on sludge dewatering by using total mixed flow reactor |
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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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20180605 |