CN206570192U - Sludge dewatering and drying device - Google Patents
Sludge dewatering and drying device Download PDFInfo
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- CN206570192U CN206570192U CN201720267651.6U CN201720267651U CN206570192U CN 206570192 U CN206570192 U CN 206570192U CN 201720267651 U CN201720267651 U CN 201720267651U CN 206570192 U CN206570192 U CN 206570192U
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- outlet
- drying
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- 239000010802 sludge Substances 0.000 title claims abstract description 215
- 238000001035 drying Methods 0.000 title claims abstract description 74
- 230000018044 dehydration Effects 0.000 claims abstract description 10
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- 230000006641 stabilisation Effects 0.000 claims description 24
- 238000011105 stabilization Methods 0.000 claims description 24
- 230000003068 static effect Effects 0.000 claims description 21
- 230000001877 deodorizing effect Effects 0.000 claims description 20
- 239000007921 spray Substances 0.000 claims description 20
- 230000007246 mechanism Effects 0.000 claims description 18
- 239000000428 dust Substances 0.000 claims description 16
- 238000007599 discharging Methods 0.000 claims description 12
- 238000006073 displacement reaction Methods 0.000 claims description 11
- 238000009833 condensation Methods 0.000 claims description 10
- 230000005494 condensation Effects 0.000 claims description 10
- 238000012545 processing Methods 0.000 claims description 9
- 238000012856 packing Methods 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 238000013459 approach Methods 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 239000012716 precipitator Substances 0.000 claims 1
- 238000005189 flocculation Methods 0.000 abstract description 7
- 230000016615 flocculation Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 24
- 239000010865 sewage Substances 0.000 description 22
- 239000007788 liquid Substances 0.000 description 14
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- 239000003814 drug Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 239000010801 sewage sludge Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 208000023445 Congenital pulmonary airway malformation Diseases 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Landscapes
- Treatment Of Sludge (AREA)
Abstract
The utility model relates to a sludge dewatering and drying device. The sludge dewatering and drying device comprises a sludge squeezing and dewatering unit, a conveying unit, a sludge crushing and drying unit and a collecting unit, wherein the conveying unit is arranged between the sludge squeezing and dewatering unit and the sludge crushing and drying unit, and conveys sludge treated by the sludge squeezing and dewatering unit into the sludge crushing and drying unit; and the feed inlet of the collecting unit is communicated with the discharge outlet of the sludge crushing and drying unit. The utility model discloses a sludge dewatering, drying device adaptability are wide, can realize continuous flocculation concentration, screw press dehydration and broken drying, and sludge treatment process flow is short, and equipment is few, and the engineering investment is economized, and the running cost is low, can reduce sludge moisture content from 98~99wt.% to 20~30wt.%, and the mud massiveness reduces, has great popularization and application to worth in the sludge treatment field.
Description
Technical field
The utility model belongs to sludge treatment field, and in particular to a kind of sludge dewatering, drying device.
Background technology
As China's economic development and urbanization process are accelerated, water pollution problems becomes increasingly conspicuous, and quantity of wastewater effluent presents fast
Fast increasing trend.According to incompletely statistics, from during nineteen ninety to 14 years in 2003, China's urban wastewater discharge increase
10000000000 m3, it is within 2003 46000000000 m3；11 year from 2004 to 2014, China's urban wastewater discharge increases to
125000000000 m3, add 79,000,000,000 m3.By the end of the year 2014, China's town domestic sewage facility disposal ability reaches 1.5 hundred million m3/ d,
Wastewater treatment rate reaches 80wt.%.With the propulsion of " 12 " target for energy-saving and emission-reduction, China is to effluent of municipal sewage plant water
The standard of matter is improved constantly,《Urban wastewater treatment firm pollutant emission standard》Regulation, urban wastewater treatment firm water outlet is discharged into state
When closing, the semiclosed waters such as the major river valley and lake, reservoir of family and province's determination, one-level A standards are performed.The city that early stage builds
Although preferably, the removal effect to nitrogen, phosphorus is not obvious, for the effect of sewage treatment plant of city organics removal, suspension
Do not reach discharge standard of the current China for municipal sewage, thrown based on traditional activated sludge process for the early stage of main process
The municipal sewage plant built to sewage treatment plant carry marking and transforms imperative under the pressure of policy and environmental pressure.Therefore, I
State's sewage disposal cause is also faced with many problems and challenge while developing rapidly, is mainly reflected in following 3 aspects：（1）
Construction fund lacks, and building sewage treatment plant needs very big fund input, and shortage of funding is just into the one of limitation waste water control
Big obstacle；（2）Sewage treatment plant's operating cost is high, causes many equipment of sewage treatment plant and turns into ornaments；（3）Settled sludge is not
But concentration is low, only 1 ~ 2wt.%, and be difficult to be dehydrated, therefore, dehydration needs a large amount of dehydration equipments, not only equipment investment
Greatly, soil is also taken up, in addition, the moisture percentage in sewage sludge after dewater treatment is high, 75 ~ 80wt.% is reached, the sludge scale of construction is big, and year produces dirty
Mud amount reaches that more than 30,000,000 tons contain harmful bacteria, it is necessary to take in a large amount of landfills, sludge, can produce secondary dirt after landfill
Dye, the underground pollution that this landfill is produced is difficult to repair, it is necessary to sludge is further dried processing, and at existing sludge
Equipment is managed, normally only with dehydration or functions/drying, it is impossible to realize continuous or deep dehydration, the drying of sludge in set of device
Processing, big to human and material resources requirement, Treatment of Sludge cost is high.
Utility model content
The purpose of this utility model be in view of the shortcomings of the prior art there is provided one kind can continuously to sludge carry out dehydration and
Dry sludge treatment equipment, is invested and reduced with depth, reduction dehydration equipment is dehydrated with the efficiency that dehydrates for improving sludge
Occupation area of equipment, improves the treatment effeciency of sludge.
The technical solution of the utility model is：A kind of sludge dewatering, drying device, including it is sludge pressing dewatering unit, defeated
Unit, sludge crushing drying unit and collector unit are sent, the supply unit is arranged at sludge pressing dewatering unit and broken with sludge
Between broken drying unit, the sludge after the processing of sludge pressing dewatering unit is transported to sludge crushing drying unit by supply unit
It is interior；The charging aperture of the collector unit is connected with the discharging opening of sludge crushing drying unit.
Using such structure design, sludge first passes through the dehydration of sludge pressing dewatering unit, obtains the higher dirt of solid content
Mud, then sends into sludge crushing drying unit through supply unit, in the presence of sludge crushing drying unit, further crush,
Dry, be changed into dust-like, and collect in collector unit, pass through the association of sludge pressing dewatering unit and sludge crushing drying unit
Same-action, dual drying is carried out continuously to sludge, final to obtain the low sludge of water content.
Further, the sludge pressing dewatering unit includes sludge pump and spiral pressing dehydrator, the screw press
Dewaterer, which is provided with charging aperture, discharge outlet and discharging opening, the spiral pressing dehydrator, is provided with variable-pitch propeller pressing mechanism, institute
State and screen pack be cased with variable-pitch propeller pressing mechanism, the port of export of the sludge pump is connected with charging aperture, the discharging opening with it is defeated
Unit is sent to connect.
Further, the supply unit is conveying worm.
Further, the sludge crushing drying unit includes sludge crushing drying chamber, the sludge crushing drying chamber
Inner bottom part is provided with crushing mechanism, and the bottom of the sludge crushing drying chamber is provided with gas approach, the sludge crushing drying chamber
Side wall is provided with dog-house, and the outlet of the dog-house and conveying worm is connected；Set at the top of the sludge crushing drying chamber
There is dust outlet, the dust outlet is connected with collector unit.
Further, the collector unit is mainly made up of bagroom, and the bottom of the bagroom is provided with dry
Mud is exported, and the sidepiece of bagroom is provided with dust inlet, and the dust inlet is connected with dust outlet；The bagroom
Top be provided with exhaust outlet.
Configured using such structure, sludge pump pumps pending sludge to sludge spiral pressing dehydrator, sludge
Spiral pressing dehydrator obtains argillaceous sludge to sludge dewatering, and the water that spiral pressing dehydrator takes off can be delivered at sewage
Reason system processing, argillaceous sludge is sent to broken drying machine by conveying worm, and the argillaceous sludge mechanism that is broken is broken, together
In the presence of the high-temperature flue gas that Shi Cong gas approach is passed through, dry, become powdering sludge, powdery sludge is with high-temperature flue gas
Rise, and enter bagroom；In bagroom, powdery sludge settling gets off, and collects in bagroom bottom, obtains
Finished product dries sludge, and flue tail gas is discharged by exhaust outlet.
Further, sludge dewatering of the present utility model, drying device also include tail gas treating unit, the vent gas treatment
Unit includes air-introduced machine and spray deodorizing tower, and the air inlet of the air-introduced machine is connected with exhaust outlet, the gas outlet of air-introduced machine and spray
Drench deodorizing tower connection.
Further, the side wall of the spray deodorizing tower is provided with gas feed, and the gas feed and air-introduced machine go out
Gas port is connected；Spray in deodorizing tower, top, the lower section of the gas feed are equipped with packing layer, and the top of packing layer is provided with back
Flow spraying mechanism；The bottom of the spray deodorizing tower, which has, is connected with backflow water pump, the recirculation water at discharge outlet, the discharge outlet
The delivery port of pump is connected with backflow spraying mechanism；The top of the spray deodorizing tower is provided with exhaust outlet, the exhaust ports connection
There is exhaust chimney.
Tail gas enters spray deodorizing tower by air-introduced machine, enters further dedusting and deodorization, it is up to standard after, pass through smoke stack emission
Tail gas, prevents the pollution of the environment.
Preferably, sludge dewatering of the present utility model, drying device also include sludge condensation unit, the sludge condensation list
The discharging opening of member is connected with the charging aperture of sludge pressing dewatering unit.
Further, the sludge condensation unit includes sludge-tank, and the side bottom of the sludge-tank is connected with sludge pump, institute
The port of export for stating sludge pump has been sequentially connected in series the first static mixer and the second static mixer, and second static mixer goes out
Mouth is communicated with current stabilization dehydrating tower, and the top of the current stabilization dehydrating tower is provided with overfall, the current stabilization dehydrating tower provided with taper
Cylinder, the cross section of taper inner cylinder gradually increases from top to bottom, and straight tube is connected with the top of the taper inner cylinder；Described second is static
The port of export of blender is connected with straight tube, and the height of the junction is on overfall；The bottom of the current stabilization dehydrating tower is provided with
Sludge outlet, the sludge outlet is connected with the entrance point of sludge pump.
Further, water leg is connected with the outside of the current stabilization dehydrating tower, the water leg is provided with delivery port.
In the sludge condensation unit, sludge pump is used to extract sludge out from sludge-tank and send into current stabilization dehydrating tower, should
During sludge sequentially pass through the first static mixer and the second static mixer, in static mixer, sludge and coagulation medicine
Agent is mixed, and is flocculated；Taper inner cylinder is provided with current stabilization dehydrating tower, current stabilization dehydrating tower is separated into two sludge decelerations by taper inner cylinder
Flocculation sludge, is dehydrated by solid-liquid displacement zone in two times, improves sludge concentration, is easy to follow-up sludge pressing dewatering unit to sludge
Dewater treatment；Meanwhile, water leg is connected with the outside of the current stabilization dehydrating tower, the water leg is provided with delivery port, rising
The water that sewage is flowed in water leg, water leg from overfall is flowed out by delivery port, available for other approach.
Compared with prior art, the utility model has the advantages that：
1）Wide adaptability, is applicable to the sludge dewatering drying process that various sewage are produced；
2）Continuity is strong, and degree of dehydration is high, and drying process dirt is dehydrated and crushes by continuous flocculation concentration, screw press
Mud, sludge treatment technique flow is short, and equipment is few, and construction investment is saved, and operating cost is low, can be by moisture percentage in sewage sludge from 98 ~ 99wt.%
20 ~ 30wt.% is reduced to, the sludge scale of construction is reduced at double, dried sludge is also used as fuel and used, reduces coal-fired consumption,
Further mitigate the pollution to environment；
3）Compact equipment, floor space is small, and cost is less than traditional sludge processing equipment 30%~60%；
4）Automaticity is high, can it is disposable to Treatment of Sludge human and material resources consumption is low in place, the sludge of the present apparatus takes off
Water, which dries overall process, can use DCS（Automatically）Control；
5）The present apparatus can be made into all size, there is great application value in sludge treatment field.
Brief description of the drawings
Fig. 1 is the sludge dewatering of the first embodiment of the utility model, the structure diagram of drying device.
Fig. 2 is the sludge pressing dewatering unit, drying sludge dewatering system and receipts of the first embodiment of the utility model
Collect the enlarged drawing of cell mesh.
Embodiment
Describe the utility model in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that not conflicting
In the case of, the feature in embodiment and embodiment in the utility model can be mutually combined.For sake of convenience, hereinafter such as
There are " on ", " under ", "left", "right" printed words, only represent that the upper and lower, left and right direction with accompanying drawing in itself is consistent, not to structure
Play restriction effect.
Fig. 1 is the sludge dewatering of the first embodiment of the utility model, the structure diagram of drying device, specifically, is somebody's turn to do
Sludge dewatering, drying device, including sludge pressing dewatering unit, supply unit, sludge crushing drying unit and collector unit, institute
State supply unit to be arranged between sludge pressing dewatering unit and sludge crushing drying unit, sludge pressing is dehydrated by supply unit
Sludge after cell processing is transported in sludge crushing drying unit；The charging aperture of the collector unit is dried single with sludge crushing
The discharging opening connection of member.
Wherein, the sludge pressing dewatering unit includes sludge pump 6 and spiral pressing dehydrator 7, and the screw press takes off
Water dispenser 7 is provided with charging aperture 701, discharge outlet 702 and discharging opening 703, the spiral pressing dehydrator 7 squeezes provided with variable-pitch propeller
Screen pack 704, the port of export and charging aperture of the sludge pump 6 are cased with press mechanism 705, the variable-pitch propeller pressing mechanism 705
701 connections, the discharging opening 703 is connected with supply unit, and the supply unit is conveying worm 8.
The sludge crushing drying unit includes sludge crushing drying chamber 9, and the inner bottom part of the sludge crushing drying chamber 9 is set
There is crushing mechanism 901, the bottom of the sludge crushing drying chamber 9 is provided with gas approach 902, the sludge crushing drying chamber 9
Side wall is provided with dog-house 903, and the dog-house 903 is connected with the outlet of conveying worm 8；The sludge crushing drying chamber 9
Top be provided with dust outlet 904, the dust outlet 904 connects with collector unit（See Fig. 1 and Fig. 2）.
The collector unit is mainly made up of bagroom 10, and the bottom of the bagroom 10 is exported provided with dry mud
1001, the sidepiece of bagroom 10 is provided with dust inlet 1002, and the dust inlet 1002 is connected with dust outlet 904；Institute
The top for stating bagroom 10 is provided with exhaust outlet 1003.
The sludge dewatering of present embodiment, drying device also include tail gas treating unit, and the tail gas treating unit includes
Air-introduced machine 11 and spray deodorizing tower 12, the air inlet of the air-introduced machine 11 are connected with exhaust outlet 1003, the gas outlet of air-introduced machine 11
Connected with spray deodorizing tower 12.
The side wall of the spray deodorizing tower 12 is provided with gas feed 122, and the gas feed 122 goes out with air-introduced machine 11
Gas port is connected；Spray in deodorizing tower 12, top, the lower section of the gas feed 122 are equipped with packing layer 125, packing layer 125
Top is provided with backflow spraying mechanism 123；The bottom of the spray deodorizing tower 12 has to be connected at discharge outlet 121, the discharge outlet 121
There is backflow water pump 13, the delivery port of the backflow water pump 13 is connected with backflow spraying mechanism 123；The top of the spray deodorizing tower 12
Portion is provided with exhaust outlet 124, the exhaust outlet 124 and is connected with exhaust chimney 14.
The sludge dewatering of present embodiment, drying device also include sludge condensation unit, and the sludge condensation unit goes out
Material mouth is connected with the charging aperture of sludge pressing dewatering unit, and sludge condensation unit plays Effect of Pretreatment to sludge, convenient follow-up
Processing.
Wherein, the sludge condensation unit includes sludge-tank 1, and the side bottom of the sludge-tank 1 is connected with sludge pump 2, institute
The port of export for stating sludge pump 2 has been sequentially connected in series the first static mixer 3 and the second static mixer 4, second static mixing
The outlet of device 4 has current stabilization dehydrating tower 5, and the top of the current stabilization dehydrating tower 5 is provided with overfall 506, the current stabilization dehydrating tower 5
Provided with taper inner cylinder 505, the cross section of taper inner cylinder 505 gradually increases from top to bottom, the top connection of the taper inner cylinder 505
There is straight tube 503；The port of export of second static mixer 4 is connected with straight tube 503, and the height of the junction is in overfall 506
On；The bottom of the current stabilization dehydrating tower 5 is provided with sludge outlet 510, and the entrance point of the sludge outlet 510 and sludge pump 6 connects
It is logical；The outside of current stabilization dehydrating tower 5 is connected with water leg 507, and the water leg 507 is provided with delivery port 508.
Rabbling mechanism is provided with the sludge-tank 1, to keep sludge concentration to stablize relatively, the side bottom of the sludge-tank 1
Sludge pump 2 is connected with, the port of export of the sludge pump 2 has been sequentially connected in series the first static mixer 3 and the second static mixer 4,
For ensureing that sludge is continuously mixed and flocculated with flocculation medicament；Top is provided with overfall 506, taper in the current stabilization dehydrating tower 5
The mouth of pipe 511 is offered on inner cylinder 505, water leg 507, delivery port 508, straight tube 503, second static mixer 4 passes through pipe
Mouth 511 is connected with straight tube 503, and sludge deflector 504 is provided with straight tube 503, and the height of sludge deflector 504 is less than the mouth of pipe 511
Height；The bottom of current stabilization dehydrating tower 5 is pyramidal structure 509, and the bore of the pyramidal structure 509 is gradually reduced from top to bottom, institute
The bottom for stating pyramidal structure 509 is provided with sludge outlet 510；Current stabilization dehydrating tower 5 is separated into two sludge decelerations by taper inner cylinder 505
Solid-liquid displacement zone, i.e. the first sludge deceleration solid-liquid displacement zone 501 and the second sludge deceleration solid-liquid displacement zone 502, sewage pass through
Baffling is upward behind one sludge deceleration solid-liquid displacement zone 501, then by being overflow behind the second sludge deceleration solid-liquid displacement zone 502 from tower top
Head piece 506, which is flowed to, catchments 507, then from the delivery port 508 of water leg 507 from spilling out.
Illustrate below by taking processing of the concentration for 1 ~ 2wt.% sludge as an example.First, sludge pump 2 is pumped dense from sludge-tank 1
The sludge for 1 ~ 2wt.% is spent, by sludge pipe successively by the first static mixer 3 and the second static mixer 4, the
The liquid polyaluminium chloride PAC that alumina content is 5 ~ 6wt.% is added at one side port 31（Addition is 1 ~ 2wt.% of sludge quantity）,
The liquid polyacrylamides CPAM that solid content is 0.1 ~ 0.2wt.% is added at the second side port 41, flocculation sludge is dehydrated from current stabilization
The straight tube 503 at the top of tower 5 enters in tower, and the first sludge deceleration solid-liquid displacement zone 51 is distributed to by sludge deflector 504, the
In one sludge deceleration solid-liquid displacement zone 51, flocculation sludge flow velocity is reduced suddenly, and because sludge proportion is more than sewage, flow velocity is faster than dirt
Water, sludge and sewage are different de- steady due to flow velocity, realize separation of solid and liquid, to the lower end of taper inner cylinder 505 at when, sewage is with a small amount of
Sludge baffling accelerates to flow up suddenly, into the second sludge deceleration solid-liquid displacement zone 502, in the second sludge deceleration separation of solid and liquid
In area 502, a small amount of sludge flowing velocity of sewage and its institute's band constantly reduces, and sewage is continued up, and sludge is then in Action of Gravity Field
Lower baffling flows downward, and realizes further separation, as flocculation sludge is constantly entered in current stabilization dehydrating tower, the second sludge subtracts
A certain amount of sludge can be accumulated in fast solid-liquid displacement zone 502 and filter layer is formed, and the sewage flowed through is played a role in filtering, caused
Sewage band mud amount is constantly reduced, and when sewage rises to overfall 506, water has become clear, and enters water leg from overfall 506
507, then spilt out certainly from delivery port 508.Meanwhile, thickened sludge constantly sinks under gravity, reaches bottom of towe pyramidal structure
At 509, sludge continues to flow downward and is dehydrated in the double action of gravity and static pressure, until reaching tower bottom, now sludge is dense
Degree reaches 4 ~ 6wt.%, then, and concentration is extracted into spiral by sludge pump 6 for 4 ~ 6wt.% thickened sludge from bottom of towe sludge outlet 510
In the cartridge filter of squeezing dewatering machine 7, the thickened sludge is constantly dehydrated under the rotary squeezing of variable-pitch propeller pressing mechanism 705, when
Sludge concentration enters conveying worm 8 when reaching 40 ~ 50wt.% from discharging opening 703；Hereafter, conveying worm 8 is by sludge content
Reach that 40 ~ 50wt.% sludge is sent to the bottom of sludge crushing drying chamber 9, the sludge is in the bottom of sludge crushing drying chamber 9 by a high speed
The crushing mechanism 901 of rotation crushes powdering, and the high temperature flue gas drying entered from the bottom side of sludge crushing drying chamber 9 is dehydrated,
And enter bagroom 10 as flue gas leaves drying tower from top of tower outlet 903, dry sludge is retained down by cloth bag,
1001 are exported in dry mud and collects the drying sludge that water content is less than 30wt.%, and tail gas then passes through cloth bag from top exhaust outlet
1002 leave sack cleaner 10, and the dust and stink that tail gas is entered in spray deodorizing tower 12, tail gas by air-introduced machine 11 are being filled out
Contact and be removed with the recirculated water containing medicament at the bed of material 125, tail gas up to standard enters smoke stack emission from top vent 124.
The content that above-described embodiment is illustrated should be understood to that these embodiments are only used for being illustrated more clearly that the utility model,
Rather than scope of the present utility model is limited, after the utility model has been read, those skilled in the art are new to this practicality
The modification of the various equivalent form of values of type each falls within the application appended claims limited range.
Claims (10)
1. a kind of sludge dewatering, drying device, it is characterised in that including sludge pressing dewatering unit, supply unit, sludge crushing
Drying unit and collector unit, the supply unit are arranged between sludge pressing dewatering unit and sludge crushing drying unit,
Sludge after the processing of sludge pressing dewatering unit is transported in sludge crushing drying unit by supply unit；The collector unit
Charging aperture is connected with the discharging opening of sludge crushing drying unit.
2. sludge dewatering according to claim 1, drying device, it is characterised in that the sludge pressing dewatering unit bag
Include sludge pump（6）And spiral pressing dehydrator（7）, the spiral pressing dehydrator（7）It is provided with charging aperture（701）, discharge outlet
（702）And discharging opening（703）, the spiral pressing dehydrator（7）It is interior to be provided with variable-pitch propeller pressing mechanism（705）, the displacement
Screw extrusion machinery（705）On be cased with screen pack（704）, the sludge pump（6）The port of export and charging aperture（701）Connection, institute
State discharging opening（703）Connected with supply unit.
3. sludge dewatering according to claim 1 or 2, drying device, it is characterised in that the supply unit is spiral transferring
Send machine（8）.
4. sludge dewatering according to claim 3, drying device, it is characterised in that the sludge crushing drying unit bag
Include sludge crushing drying chamber（9）, the sludge crushing drying chamber（9）Inner bottom part be provided with crushing mechanism（901）, the sludge break
Broken drying chamber（9）Bottom be provided with gas approach（902）, the sludge crushing drying chamber（9）Side wall be provided with dog-house
（903）, the dog-house（903）With conveying worm（8）Outlet connection；The sludge crushing drying chamber（9）Top set
There is dust outlet（904）, the dust outlet（904）Connected with collector unit.
5. sludge dewatering according to claim 4, drying device, it is characterised in that the collector unit is main by cloth bag
Dust-precipitator（10）Composition, the bagroom（10）Bottom provided with dry mud export（1001）, bagroom（10）Side
Portion is provided with dust inlet（1002）, the dust inlet（1002）With dust outlet（904）Connection；The bagroom（10）
Top be provided with exhaust outlet（1003）.
6. sludge dewatering according to claim 5, drying device, it is characterised in that also including tail gas treating unit, described
Tail gas treating unit includes air-introduced machine（11）With spray deodorizing tower（12）, the air-introduced machine（11）Air inlet and exhaust outlet
（1003）Connection, air-introduced machine（11）Gas outlet with spray deodorizing tower（12）Connection.
7. sludge dewatering according to claim 6, drying device, it is characterised in that the spray deodorizing tower（12）Side
Wall is provided with gas feed（122）, the gas feed（122）With air-introduced machine（11）Gas outlet connection；Spray deodorizing tower
（12）It is interior, the gas feed（122）Top, lower section be equipped with packing layer（125）, packing layer（125）Top be provided with back
Flow spraying mechanism（123）；The spray deodorizing tower（12）Bottom have discharge outlet（121）, the discharge outlet（121）Place is connected with
Flow back water pump（13）, the backflow water pump（13）Delivery port with backflow spraying mechanism（123）Connection；The spray deodorizing tower
（12）Top be provided with exhaust outlet（124）, the exhaust outlet（124）Place is connected with exhaust chimney（14）.
8. sludge dewatering, drying device according to any one of claim 1,4,5,6,7, it is characterised in that also including dirt
Mud upgrading unit, the discharging opening of the sludge condensation unit is connected with the charging aperture of sludge pressing dewatering unit.
9. sludge dewatering according to claim 8, drying device, it is characterised in that the sludge condensation unit includes dirt
Mud sump（1）, the sludge-tank（1）Side bottom be connected with sludge pump（2）, the sludge pump（2）The port of export be sequentially connected in series
First static mixer（3）With the second static mixer（4）, second static mixer（4）Outlet has current stabilization dehydration
Tower（5）, the current stabilization dehydrating tower（5）Top be provided with overfall（506）, the current stabilization dehydrating tower（5）It is interior to be provided with taper inner cylinder
（505）, taper inner cylinder（505）Cross section gradually increase from top to bottom, the taper inner cylinder（505）Top be connected with straight tube
（503）；Second static mixer（4）The port of export and straight tube（503）Connection, the height of the junction is in overfall
（506）On；The current stabilization dehydrating tower（5）Bottom be provided with sludge outlet（510）, the sludge outlet（510）With sludge pump
（6）Entrance point connection.
10. sludge dewatering according to claim 9, drying device, it is characterised in that the current stabilization dehydrating tower（5）It is outer
Side is connected with water leg（507）, the water leg（507）It is provided with delivery port（508）.
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| CN201720267651.6U CN206570192U (en) | 2017-03-20 | 2017-03-20 | Sludge dewatering and drying device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720267651.6U CN206570192U (en) | 2017-03-20 | 2017-03-20 | Sludge dewatering and drying device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108999233A (en) * | 2018-07-31 | 2018-12-14 | 华北水利水电大学 | A kind of dredging device for water conservancy projects |
| CN109231776A (en) * | 2018-11-16 | 2019-01-18 | 江苏科技大学 | A kind of mud centrifugal dehumidifier worked continuously |
-
2017
- 2017-03-20 CN CN201720267651.6U patent/CN206570192U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108999233A (en) * | 2018-07-31 | 2018-12-14 | 华北水利水电大学 | A kind of dredging device for water conservancy projects |
| CN108999233B (en) * | 2018-07-31 | 2021-03-12 | 华北水利水电大学 | Hydraulic engineering desilting device |
| CN109231776A (en) * | 2018-11-16 | 2019-01-18 | 江苏科技大学 | A kind of mud centrifugal dehumidifier worked continuously |
| CN109231776B (en) * | 2018-11-16 | 2021-10-19 | 江苏科技大学 | Continuous operation's silt centrifugal dehydration device |
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