CN207418558U - Sludge drying dewatering system - Google Patents
Sludge drying dewatering system Download PDFInfo
- Publication number
- CN207418558U CN207418558U CN201720791443.6U CN201720791443U CN207418558U CN 207418558 U CN207418558 U CN 207418558U CN 201720791443 U CN201720791443 U CN 201720791443U CN 207418558 U CN207418558 U CN 207418558U
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- China
- Prior art keywords
- sludge
- dome
- housing
- agitating shaft
- anhydration
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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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- Drying Of Solid Materials (AREA)
- Treatment Of Sludge (AREA)
Abstract
The utility model is related to a kind of sludge drying dewatering systems, including disk anhydration system and press filtration anhydration system, the disk anhydration system includes housing, agitating shaft in housing is installed, is separated on agitating shaft and circular disc is installed, the top of housing is equipped with sludge import, steam (vapor) outlet, bottom is exported equipped with dewatered sludge, agitating shaft is driven by the motor of one end, and agitating shaft is hollow-core construction, and its one end is hot steam entrance and is plugged with condensed water delivery line；The press filtration anhydration system includes press filteration system, be connected with the press filteration system into mud system, pumped vacuum systems, hot water cyclesystem and sludge output system, it is described to be connected into the mud inlet end of mud system and press filteration system, the mud outlet end of sludge output system and press filteration system connects, it is negative pressure state when the pumped vacuum systems is for keeping press filteration system press filtration sludge, the hot water cyclesystem is connected with the steam (vapor) outlet of disk anhydration system.
Description
Technical field
The utility model is related to sludge treatment device fields, more particularly to sludge drying technique field, are specially that sludge is done
Change dewatering system.
Background technology
A large amount of sludge can be generated after town domestic sewage processing, if these sludge cannot be obtained timely, effective and stablized
Processing, will be the safety belt of urban area environment and people's lives come great hidden danger.In addition, papermaking, chemical industry, process hides, print
The industrial process such as dye and rivers and lakes dredging etc. can also generate substantial amounts of sludge.
The minimizing of sludge, the innoxious great environmental issue that has become Scientific city development and must solve in the process.
The sludge that sewage treatment plant generates moisture content after dehydration is still up to 80%, and volume, quality are larger, are unfavorable at subsequent processing
It puts.No matter which kind of final sludge handle disposal options using, the reduction of sludge water content is all particularly significant.Mechanical dehydration treatment technology
The Free water in sludge can only be removed, is then needed if you need to the moisture content for further reducing sludge by the way of heat drying.
Fluid state is presented in the higher sludge of moisture content, and with the reduction of its moisture content in drying process, plasticity is progressively
Show, and generate greatly viscosity.Existing sludge drying machine uses the mode of heating of indirect heat transfer, the heat of heat-transfer working medium more
Sludge is indirectly transferred to through hot wall.With the progress of desiccation, moisture percentage in sewage sludge reduces, and volume reduces, and is easily adhered to hot wall
Surface is unfavorable for the uniform mixing of sludge and the update of evaporating surface.It will crust after Sludge Surface moisture evaporation, due to sludge shell
Heat transfer coefficient it is low, if sludge shell cannot be broken, the efficiency that sludge outwards conducts heat in shell also decreases, and causes desiccation machine
Complex heat transfer coefficient reduce.Meanwhile moisture is significantly reduced by the rate of the outside mass transfer of sludge shell in sludge, causes sludge
Desiccation rate reduction constrains the treating capacity of sludge drying machine.
Currently used indirect heat transfer oar blade type sludge drying machine sets two or four stirring shafts according to treating capacity,
Adjacent stirring shaft backwards rotation.Several stirrer paddles (disk) are set on every stirring shaft, and blade design is wedge shape
Double leaf, and be installed vertically on stirring shaft.Blade on adjacent stirring shaft is spaced apart, and mutually ratcheting, is stirred with realizing
Mix the reinforcing of effect.
At present, the R＆D personnel in this field, focus of attention are how to improve the desiccation effect and efficiency of sludge,
The water content of sludge after desiccation how is reduced, reduces energy consumption etc..
Common disk desiccation machine uses thermaltransmission mode for (general 180 DEG C, 0.8Mp), by wet sludge anhydration using steam
Afterwards, 90 DEG C of hot water are condensed into.90 DEG C of hot water can not be recycled, and cause the energy utilization rate of entire sludge drying system
It is low.
Utility model content
For existing disc type sludge drying device, applicant has found its existing fatal defects by studying for a long time
It is to belong to high temperature (100-180 DEG C) in disk desiccation machine, (sludge drying simultaneously rotates the dust for promoting and generating, dewatered sludge powder to high dirt
Dirt is flammable) air environment, and in Frotteurism, the risk there are explosion is larger, and therefore, the utility model provides a kind of safety
The high sludge drying dewatering system of performance, and solve the problems, such as that traditional sludge anhydration system energy utilization rate is low.
To solve the above-mentioned problems, the utility model uses following scheme：
A kind of sludge drying dewatering system, including disk anhydration system and press filtration anhydration system, the disk anhydration system
Including housing, agitating shaft in housing is installed, is separated on agitating shaft and circular disc is installed, the top of housing be equipped with sludge import,
Steam (vapor) outlet, bottom are exported equipped with dewatered sludge, and agitating shaft is driven by the motor of one end, and agitating shaft is hollow-core construction, and its one end is
Hot steam entrance is simultaneously plugged with condensed water delivery line；The press filtration anhydration system includes press filteration system, connects with the press filteration system
Connect into mud system, pumped vacuum systems, hot water cyclesystem and sludge output system, it is described into mud system and press filteration system into
Mud end connects, and the mud outlet end of sludge output system and press filteration system connects, and the pumped vacuum systems is used to keep press filteration system pressure
It is connected when filtering sludge for negative pressure state, the hot water cyclesystem with the steam (vapor) outlet of disk anhydration system.
As being further improved for above-mentioned technical proposal：
The housing is including the installation agitating shaft and the semicircular cylinder coaxial with the agitating shaft and from the semicircular cylinder
The dome that side upwardly extends, the dome be equipped with high pressure water input and nitrogen inlet, the high-pressure water inlet with
High-pressure hydraulic pump on the water pipe that water tank is connected is installed, high pressure gas is installed on the tracheae that nitrogen inlet is connected with nitrogen pot
Pump；The cross section structure of the housing is：Spacing between from the top of the dome to the center of the semicircular cylinder is described half
1-2 times of circular cylinder radius.
The dome is internally provided with injection spray pipe, and the injection spray pipe is equipped with along the axially extending of semicircular cylinder, injection spray pipe
Multiple spray nozzles.
Temperature monitoring point and dust monitoring point are equipped in the housing, temperature sensing is installed at the temperature monitoring point
Device is equipped with dust sensor at dust monitoring point；The desiccation machine further includes controller, and the controller is passed with the temperature
Sensor, dust sensor, high-pressure hydraulic pump and high-pressure pump connection, the temperature signal that the controller is detected according to temperature sensor
It controls the high-pressure hydraulic pump, the high-pressure pump is controlled according to the Dust Capacity signal of dust sensor.
The section of the dome is semicircle, and radius is equal with the section radius of semicircular cylinder.
Sludge import is equipped at the top of the dome of one end of the housing, the semicircular cylinder bottom of the other end goes out equipped with dewatered sludge
Mouthful, dewatered sludge outlet connection tilts upward the auger conveyor of setting.
Spacing between from the top of the dome to the center of the semicircular cylinder is 1.5 times of semicircular cylinder radius.
The injection spray pipe is arranged in the top inner wall of dome in undaform fitting, and each of which bending point is arranged with the spray
Mist mouth.
The injection spray pipe is suspended to the inner top surface of dome in undaform, plays each bending point and is arranged with downward and front and rear spray
The spray nozzle penetrated.
The utility model has technical effect that：
The utility model uses disk anhydration system disk anhydration system and the ingenious combination of low temperature press filtration anhydration system
Vapor afterwards is recycled, and can greatly save sludge drying energy consumption, energy conservation and environmental protection.The disk anhydration system of the utility model
In, traditional cylinder shell structure is changed, adds dome structure, and by the way of high-pressure fog, spray nitrogen, it can be thorough
It avoids exploding, improves security；Also, the smart structural design of high-pressure fog pipe can save water, it can be achieved that fast cooling
Source.
Description of the drawings
Fig. 1 is the structure chart of the utility model.
Fig. 2 is the structure diagram of disk anhydration system in the utility model.
Fig. 3 is the end view drawing of this disk anhydration system middle casing.
Fig. 4 is the inside bottom view of dome in this disk anhydration system.
Fig. 5 is the inside front view of this disk anhydration system middle casing.
In figure：100th, disk anhydration system；200th, press filtration anhydration system；201st, press filteration system；202nd, into mud system；203、
Pumped vacuum systems；204th, hot water cyclesystem；205th, sludge output system；1st, housing；10th, semicircular cylinder；11st, dome；12nd, high pressure
Water input；13rd, nitrogen inlet；14th, water tank；15th, high-pressure hydraulic pump；16th, nitrogen pot；17th, high-pressure pump；18th, injection spray pipe；
19th, spray nozzle；2nd, agitating shaft；20th, temperature sensor；21st, dust sensor；22nd, controller；23rd, auger conveyor；3rd, disk
Piece；4th, sludge import；5th, steam (vapor) outlet；6th, dewatered sludge exports；7th, motor；8th, hot steam entrance；9th, condensed water delivery line.
Specific embodiment
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings.
As shown in Figure 1, the sludge drying dewatering system of the present embodiment, including disk anhydration system 100 and press filtration desiccation system
System 200, disk anhydration system 100 include housing 1, are equipped with agitating shaft 2 in housing 1, are separated on agitating shaft 2 and be equipped with circular disc
3, the top of housing 1 is equipped with sludge import 4, steam (vapor) outlet 5, and bottom is equipped with dewatered sludge and exports 6, agitating shaft 2 by one end motor 7
Driving, agitating shaft 2 are hollow-core construction, and its one end is hot steam entrance 8 and is plugged with condensed water delivery line 9；Press filtration anhydration system
200 include press filteration system 201, be connected with press filteration system 201 into mud system 202, pumped vacuum systems 203, hot water cyclesystem
204 and sludge output system 205, it is connected into mud system 202 with the mud inlet end of press filteration system 201, sludge output system 205 and pressure
The mud outlet end connection of filter system 201, is negative pressure state when pumped vacuum systems 203 is for keeping 201 press filtration sludge of press filteration system, heat
Water circulation system 204 is connected with the steam (vapor) outlet 5 of disk anhydration system.
In the utility model, press filtration desiccation is carried out to sludge since the use of press filtration anhydration system 200 vacuumizes press filtration mode,
After vacuumizing, the boiling point of the water in sludge reduces, therefore 90 DEG C or so of hot water is only needed to input to press filteration system 201；And
Disk anhydration system 100 to sludge carry out desiccation after, from steam (vapor) outlet 5 export steam temperature just at 90 DEG C or so, therefore
It can be directly used for press filtration anhydration system 200.The utility model carries out the vapor after 100 use of disk anhydration system again sharp
With sludge drying energy consumption, energy conservation and environmental protection can be greatlyd save.
As shown in Figure 2 and Figure 3, the sludge drying dewatering system of the present embodiment including housing 1, is equipped with stirring in housing 1
Axis 2 separates on agitating shaft 2 and is equipped with circular disc 3, and the top of housing 1 is equipped with sludge import 4, steam (vapor) outlet 5, and bottom is equipped with dry
Sludge outlet 6, agitating shaft 2 are driven by the motor 7 of one end, and agitating shaft 2 is hollow-core construction, and its one end is hot steam entrance 8 and inserts
Condensed water delivery line 9 is equipped with, housing 1 is including installation agitating shaft 2 and the semicircular cylinder 10 coaxial with agitating shaft 2 and from semicircular cylinder 10
The dome 11 that side upwardly extends, dome 11 are equipped with high pressure water input 12 and nitrogen inlet 13, high-pressure water inlet 12
High-pressure hydraulic pump 15 on the water pipe being connected with water tank 14 is installed, is installed on the tracheae that nitrogen inlet 13 is connected with nitrogen pot 16
There is high-pressure pump 17.
In the utility model, dome 11 is set and sets using at the top of original cylinder-shaped desiccation machine housing, increasing
It sprays high pressure water or sprays the mode of nitrogen, it is therefore intended that：Due to it has been found that when existing disk desiccation machine works, in cylinder
Easily there is the risk exploded in the environment of high-temperature high dust, once explosion consequence is hardly imaginable；The results showed when in reduction housing
Air pressure when, have no effect on the desiccation effect of sludge；Since dust usually concentrates on the top of housing, therefore generally, top
Friction level between portion's dust air is larger, causes pressure larger.The utility model increases dome 11, and on the one hand increase is known clearly
The space of case top so that the dusty space increase that top is concentrated is depressured by the way of dilatation；On the other hand, spray is passed through
The mode of high pressure water (spraying) is penetrated, headroom cooling processing is avoided exploding, since high-pressure fog is sprayed in dome 11, in height
Under temperature state, vapor can be quickly become and discharged from overhead vapor outlet 5, the desiccation effect of raw sewage can't be influenced；To keep away
Exempt to explode, can also be realized by the way of nitrogen is sprayed using the in vivo air of nitrogen dilution shell；Nitrogen is passed through, can also be increased
Pressure in big housing, ensures that original desiccation machine housing pressure is constant, so as to not influence original desiccation effect to the greatest extent.Separately
Outside, when logical nitrogen is more, moreover it is possible to pressure is increased to it is bigger than the pressure of original cylinder-shaped housing, can further improve desiccation effect
Fruit promotes desiccation speed.
As shown in Figure 2 and Figure 3, the cross section structure of housing 1 is：Between from the top of dome 11 to the center of semicircular cylinder 10
Spacing H is 1-2 times of 10 radius R of semicircular cylinder.The height of dome 11 is limited, if dome is too low, effect of easing stress is bad,
Spray atomization area is narrow, and cooling-down effect is bad, and spray water is easily attached on 3 surface of circular disc, and sewage sludge viscosity is big, influences desiccation
Effect；If dome is too high, equipment cost can be substantially improved, and the distance between sludge import 4 and circular disc 3 are too big, sludge
Big to the impact force of circular disc 3 during into housing 1, rounding disc 3 is deformed, worn greatly, so as to which the short cycle be needed to replace, dimension
It protects of high cost.Testing surface, the spacing H between from the top of dome 11 to the center of semicircular cylinder 10 are 10 radius R of semicircular cylinder
1.5 times when, prevent explosion while, cost is avoided to increase.
As shown in Fig. 2, to ensure the rapid cooling of dome 11, injection spray pipe 18, injection spray pipe 18 are internally provided in dome 11
Along the axially extending of semicircular cylinder 10, injection spray pipe 18 is equipped with multiple spray nozzles 19.Even spraying cooling is realized as far as possible.
As shown in Fig. 2, in the utility model, temperature monitoring point and dust monitoring point are equipped in housing 1, at temperature monitoring point
Temperature sensor 20 is installed, dust sensor 21 is installed at dust monitoring point；Desiccation machine further includes controller 22, controller
22 are connected with temperature sensor 20, dust sensor 21, high-pressure hydraulic pump 15 and high-pressure pump 17, and controller 22 is according to temperature sensing
The temperature signal that device 20 detects controls high-pressure hydraulic pump 15, controls high-pressure pump 17 according to the Dust Capacity signal of dust sensor 21.
By the setting of sensor, realize that high pressure-temperature is explosion-proof and automatically control, without manual intervention.
As shown in Fig. 2, the section of dome 11 is semicircle, radius is equal with the section radius of semicircular cylinder 10.Housing 1
Section is in kidney-shaped symmetrical structure, and service life is longer, and manufacture craft is simpler, and cost is lower.
In the utility model, as shown in Fig. 2, 11 top of dome of one end of housing 1 is equipped with sludge import 4, the other end
1 bottom of semicircular cylinder is equipped with dewatered sludge and exports 6, and 6 connection of dewatered sludge outlet tilts upward the auger conveyor 23 of setting.It tilts upward
The ingenious part of auger conveyor 23 be, be avoided that and directly raised from the sludge of 6 output of dewatered sludge outlet of 1 bottom of housing
Dirt, and the output flow of auger conveyor 23 can be utilized.
As shown in Figure 4, Figure 5, after long-time is studied, applicants have discovered that, when injection spray pipe 18 is in undaform adhesive fabric
It puts when the top inner wall and each bending point of dome 11 are arranged with spray nozzle 19, can more uniformly cool down to dome 11.
It can also be：Injection spray pipe 18 is suspended to the inner top surface of dome 11 in undaform, and each bending point be arranged with it is downward and front and rear
The spray nozzle 19 of injection, equally can maximum uniform cooling.Wherein, the wave crest and wavelength of undaform injection spray pipe 18, according to spraying
The spray area of mouth 19 determines.
Embodiment provided above is the better embodiment of the utility model, only is used for facilitating illustrating the utility model, and
The non-limitation made to the utility model in any form, any those of ordinary skill in the art, if not departing from
In the range of the utility model carries technical characteristic, locally change or repair using made by the utility model disclosed technology content
The equivalent embodiment of decorations, and without departing from the technical characteristics of the utility model content, still fall within the utility model technical characteristic
In the range of.
Claims (8)
1. a kind of sludge drying dewatering system, it is characterised in that：Including disk anhydration system（100）And press filtration anhydration system
（200）, the disk anhydration system（100）Including housing（1）, housing（1）In agitating shaft is installed（2）, agitating shaft（2）On every
It opens and circular disc is installed（3）, housing（1）Top be equipped with sludge import（4）, steam (vapor) outlet（5）, bottom is exported equipped with dewatered sludge
（6）, agitating shaft（2）By the motor of one end（7）Driving, agitating shaft（2）For hollow-core construction, its one end is hot steam entrance（8）And
It is plugged with condensed water delivery line（9）；The press filtration anhydration system（200）Including press filteration system（201）And the press filteration system
（201）Connection into mud system（202）, pumped vacuum systems（203）, hot water cyclesystem（204）And sludge output system
（205）, it is described into mud system（202）With press filteration system（201）Mud inlet end connection, sludge output system（205）With press filtration system
System（201）Mud outlet end connection, the pumped vacuum systems（203）For keeping press filteration system（201）It is negative pressure during press filtration sludge
State, the hot water cyclesystem（204）With the steam (vapor) outlet of disk anhydration system（5）Connection；
The housing（1）Including installing the agitating shaft（2）And with the agitating shaft（2）Coaxial semicircular cylinder（10）And from described
Semicircular cylinder（10）The dome that upside upwardly extends（11）, the dome（11）It is equipped with high pressure water input（12）And nitrogen
Input port（13）, the high pressure water input（12）With water tank（14）High-pressure hydraulic pump is installed on connected water pipe（15）, nitrogen
Gas input port（13）With nitrogen pot（16）High-pressure pump is installed on connected tracheae（17）；The housing（1）Cross section structure
For：From the dome（11）Top to the semicircular cylinder（10）Center between spacing be the semicircular cylinder（10）Radius
1-2 times.
2. sludge drying dewatering system according to claim 1, it is characterised in that：The dome（11）Be internally provided with spray
Mist pipe（18）, the injection spray pipe（18）Along semicircular cylinder（10）Axially extending, injection spray pipe（18）It is equipped with multiple spray nozzles
（19）.
3. sludge drying dewatering system according to claim 1, it is characterised in that：The housing（1）The interior temperature that is equipped with is supervised
Measuring point and dust monitoring point are equipped with temperature sensor at the temperature monitoring point（20）, dust is installed at dust monitoring point
Sensor（21）；The anhydration system further includes controller（22）, the controller（22）With the temperature sensor（20）, powder
Dust sensor（21）, high-pressure hydraulic pump（15）And high-pressure pump（17）Connection, the controller（22）According to temperature sensor（20）
The temperature signal of detection controls the high-pressure hydraulic pump（15）, according to dust sensor（21）Dust Capacity signal control the high pressure
Air pump（17）.
4. sludge drying dewatering system according to claim 1, it is characterised in that：The dome（11）Section be semicircle
Shape, radius and semicircular cylinder（10）Section radius it is equal.
5. sludge drying dewatering system according to claim 1, it is characterised in that：The housing（1）One end dome
（11）Top is equipped with sludge import（4）, the semicircular cylinder of the other end（10）Bottom is exported equipped with dewatered sludge（6）, the dewatered sludge goes out
Mouthful（6）Connection tilts upward the auger conveyor of setting（23）.
6. sludge drying dewatering system according to claim 1, it is characterised in that：From the dome（11）Top to institute
State semicircular cylinder（10）Center between spacing be semicircular cylinder（10）1.5 times of radius.
7. sludge drying dewatering system according to claim 2, it is characterised in that：The injection spray pipe（18）It is pasted in undaform
Conjunction is arranged in dome（11）Top inner wall, each of which bending point is arranged with the spray nozzle（19）.
8. sludge drying dewatering system according to claim 2, it is characterised in that：The injection spray pipe（18）It is hanged in undaform
It hangs in dome（11）Inner top surface, play each bending point and be arranged with the spray nozzle of downward and front and rear injection（19）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720791443.6U CN207418558U (en) | 2017-06-30 | 2017-06-30 | Sludge drying dewatering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720791443.6U CN207418558U (en) | 2017-06-30 | 2017-06-30 | Sludge drying dewatering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207418558U true CN207418558U (en) | 2018-05-29 |
Family
ID=62398061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720791443.6U Expired - Fee Related CN207418558U (en) | 2017-06-30 | 2017-06-30 | Sludge drying dewatering system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207418558U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107098568A (en) * | 2017-07-04 | 2017-08-29 | 无锡绿麦环保科技有限公司 | Disc type drier |
| WO2022135792A1 (en) * | 2020-12-22 | 2022-06-30 | Andritz Gouda B.V. | Method of operating a paddle dryer and paddle dryer |
-
2017
- 2017-06-30 CN CN201720791443.6U patent/CN207418558U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107098568A (en) * | 2017-07-04 | 2017-08-29 | 无锡绿麦环保科技有限公司 | Disc type drier |
| WO2022135792A1 (en) * | 2020-12-22 | 2022-06-30 | Andritz Gouda B.V. | Method of operating a paddle dryer and paddle dryer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180529 Termination date: 20190630 |