CN107814472A - A kind of sludge drying processing method and device - Google Patents
A kind of sludge drying processing method and device Download PDFInfo
- Publication number
- CN107814472A CN107814472A CN201711196183.9A CN201711196183A CN107814472A CN 107814472 A CN107814472 A CN 107814472A CN 201711196183 A CN201711196183 A CN 201711196183A CN 107814472 A CN107814472 A CN 107814472A
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- sludge
- serrated knife
- roll squeezer
- machine
- moisture
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- 239000010802 sludge Substances 0.000 title claims abstract description 98
- 238000001035 drying Methods 0.000 title claims abstract description 45
- 238000003672 processing method Methods 0.000 title claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- 238000012545 processing Methods 0.000 claims abstract description 22
- 238000003756 stirring Methods 0.000 claims abstract description 19
- 238000007599 discharging Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000008187 granular material Substances 0.000 claims abstract description 8
- 230000008569 process Effects 0.000 claims abstract description 8
- 238000001556 precipitation Methods 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 12
- 238000011068 loading method Methods 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 7
- 238000001704 evaporation Methods 0.000 claims description 5
- 230000008020 evaporation Effects 0.000 claims description 5
- 230000009467 reduction Effects 0.000 claims description 5
- 238000007790 scraping Methods 0.000 claims description 5
- 230000032258 transport Effects 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 230000008859 change Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 238000005096 rolling process Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000003795 chemical substances by application Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000012546 transfer Methods 0.000 description 6
- 239000000428 dust Substances 0.000 description 5
- 239000010865 sewage Substances 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000007791 dehumidification Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 101100408384 Danio rerio piwil2 gene Proteins 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012549 training Methods 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
-
- 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
-
- 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
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
Abstract
Patent of the present invention discloses a kind of sludge drying processing method and device, belongs to fixed-end forces field, including thermal source and sludge drying processor, and the sludge drying processor from top to bottom includes roll squeezer, serrated knife forming machine and stirring type dryer successively；It will be transported by feeder by simple air-dried and precipitation process sludge to roll squeezer and be rolled into thin mud cake, serrated knife forming machine cuts into inch strips thin mud cake, mud granule enters stirring type dryer by heating for multiple times and stirred, the moisture of mud granule is reduced to specified range, specified location is transported to by discharging machine, completes sludge drying processing.The present invention is using using rolling granulating and step by step by the way of drying and other treatment so that energy utilization rate and desiccation effect of the invention is more preferable.
Description
Technical field
The invention belongs to fixed-end forces field, and in particular to a kind of sludge drying processing method and device.
Background technology
With Chinese society economy and the development of urbanization, the generation of municipal sewage and quantity are constantly increasing.According to having
Prediction is closed, China's municipal sewage amount can also increase by a fairly big margin for 20 years in future.At present, China produces the nearly 3 × 106t of dewatered sludge per year, with
The development of domestic sewage disposal cause, the total process water yield of sewage treatment plant and the continuous expansion and raising of degree for the treatment of, institute
Caused sludge quantity also will increasingly increase.Substantial amounts of sludge fails to obtain timely, rational processing and sink as sewage treatment plant
The burden of weight.Also contain substantial amounts of N, P, K, Ca and organic matter in sludge, and N, P can slowly be discharged based on organic, tool
There is long-term effect.Sludge is useful living resources, if rationally utilizing can not only then turn waste into wealth, moreover it is possible to increase economic benefit,
So effectively processing is disposed and had important practical significance using the technology of sludge.
Treatment of Sludge method is desiccation and then filled again at this stage, but with the development of modern city, is gone special
It is unrealistic to be filled to take out a piece of vacant lot, and directly landfill can not also realize the recycling to resource in addition.Also
A kind of method is exactly to carry out desiccation, pyrolysis, gasification to sludge, realizes the recycling of resource.Drying sludge technology is a kind of
Common can effectively reduce moisture percentage in sewage sludge in order to which it continues the technology of subsequent treatment, and specific is specially to design
Sludge is heated in equipment, the process of evaporation wherein moisture, it can be not only effectively realized for " free in sludge
The removal effect of water ", while also " Interstitial Water " therein, " surface-bonded water " or even " internal junction Heshui " can all be played quickly
Evaporate purpose；Because the technology can be according to the requirement of subsequent treatment process, by sludge drying to specified moisture content, therefore its quilt
It is widely used in existing sludge drying processing.
Drying sludge usually using special sludge drier, with steam, high-temperature flue gas or just like heat conduction oil or even
Solar energy, using direct or indirect mode of heating, is aided with mixing and stirring, and then its drying purpose as thermal source.Its
In, direct heat transfer formula sludge drier, this is applying artificial Suzhou Zili Chemical Equipment Co., Ltd. on June 22nd, 2010
The patent of invention of application《Sludge drying process and equipment》Deng being described in text, it is mostly with high temperature flue-gas from boiler etc.
As thermal source, make it into after drying machine and directly contacted with wet mud, by thermal convection directly to take out of in wet mud
Moisture；This kind of mode dehumidification rate is high, but due to the direct contact and precipitation of a large amount of flue gases and wet mud, causes in flying dust used heat
Dust content is huge, and because without appropriate follow-up dust separation measure, being prone to produce the potential safety hazards such as dust explosion.Indirectly
In heat transfer type sludge drier, sludge and thermal source are not directly contacted with, but heat transfer, such as Shen are carried out by way of heat transfer
Ask someone the patent of invention filed in 19 days April in 2012 of Zhejiang University《Sludge anhydration burning integrated processing system and its technique》
A kind of indirect heat transmission type drying sludge mode is just given, because sludge and thermal source are separated by artificial, it heats flue gas
Cleannes are good, without related dust hidden danger, therefore using more；However, due to current indirect heat transmission type drying machine or using class
The mode dried like the static training of pot and stove, causes to produce sludge settling under gravity inside it and single-side heating phenomenon occur,
Heating is not uniform enough, and so as to cause pending mud not parch uniformly, dehumidification rate is poor, even if as in aforementioned patent text
Fixed and moving tooth staggeredly and moving teeth in a manner of hollow Flue duct design, its mode also not only causes its complicated lengthy and tedious, safeguards pole
Its inconvenience, while can also cause its interior sludge largely to be deposited in fixed tooth lower chamber and occur drying and direct sintering
Phenomenon, set further, since its moving teeth flank of tooth is its vertical rotor shaft direction, how to ensure the discharging purpose of sludge after the drying,
Being clearly for its mechanism can not conclusive realization；In addition, current sludge drier, because its sludge accommodating chamber needs all the time
Frequently to contact or do or wet sludge, the accommodating chamber wear rate after its severe friction is high, and service life also tends to have influence on
The efficiency of actual of complete machine.How a kind of rational in infrastructure sludge drier is developed, so that it certain is played just
Prompt and efficient drying sludge purpose, for domestic and international technical barrier to be solved compeled nearly ten years.
Chinese patent publication No. CN103693829A discloses a kind of sludge treatment device and technique, and equipment includes sludge
Conveyer, sludge crushing forming machine and sludge drying machine, be provided with from top to bottom in the sludge hopper of sludge crushing forming machine by
A pair of the broken mud rollers and a pair of compressing rollers of mud bar of variable-frequency motor driving；The desiccation storehouse inner chamber of sludge drying machine is divided into desiccation
Room and circulated air heating chamber, if being provided with dried layer stainless (steel) wire belt transfer station, the sludge of sludge crushing forming machine in desiccation room
The discharging opening of hopper is located at the surface at the transmission top of the stainless (steel) wire belt transfer station of top in desiccation storehouse.At the sludge
Equipment and technique are managed during being handled for municipal sludge, there is strong processivity, cycle short efficiency high, place
The remarkable advantages such as reason effect is good, non-secondary pollution, environmental protection, stable equipment operation safety, energy consumption is low, automaticity is high.
However, the equipment is during processing sludge compacting mud bar, because water content and the big sludge of stickiness are easily bonded,
Therefore it is small significantly smaller with the little sludge of stickiness, use range the present apparatus is only capable of processing water content；On the other hand, due to sludge
Stickiness be insufficient to allow its keep strip, be easily broken off accumulating in switching process so that the drying efficiency step-down of the device, no
Beneficial to save the energy, the device use use additive by the way of, holding sludge bar grain molding effect, and add desiccation into
This, is also unfavorable for green processing.
The content of the invention
For the problems of the prior art, the invention aims to provide a kind of sludge drying processing method and device,
Using rolling granulating and step by step by the way of drying and other treatment so that energy utilization rate and desiccation effect of the invention is more preferable.
In order to achieve the above object, the technical scheme is that：
A kind of sludge drying processing method, including：First by feeder by by the simple dirt air-dried with precipitation process
Mud is transported to feeding of roll squeezer funnel；Then, loading hopper will be rolled into thin mud cake after material collection into roll squeezer, while dirty
Mud is reduced its moisture by roll squeezer heating evaporation；Again, serrated knife forming machine cuts into inch strips thin mud cake, while is heated into one
Step reduces its moisture, and strip sludge is broken into the particle of not regular length by Action of Gravity Field；Simultaneously can according to granulating needs,
The sludge that will have partly granulated can also be taken to be added in high moisture sluge, reduction enters forming part moisture；Finally, sludge
Particle enters stirring type dryer by heating for multiple times and stirred, and the moisture of mud granule is reduced into specified range, by going out
Material machine transports specified location to, completes sludge drying processing.
A kind of sludge desiccation processing equipment, including thermal source and sludge drying processor, the sludge drying processor is by upper
Include roll squeezer, serrated knife forming machine and stirring type dryer successively under；The feeding of roll squeezer mouth sets loading hopper, described
Roll squeezer is included to rotating drum, described to set the material scraping plate being adjacent to rotating drum surface to rotating drum discharging opening；The serrated knife into
Type machine inlet docks the discharging opening of the roll squeezer, and the serrated knife forming machine is included to rotary roll serrated knife, described to rotary roll serrated knife
Surface sets groove along direction of rotation, and the serrated knife forming machine discharging opening sets the clear frid being close to rotary roll serrated knife surface；Institute
The main shaft for stating roll squeezer and serrated knife forming machine is hollow shaft, and the hollow shaft sets air inlet section and exhaust section, the air inlet section and
Exhaust section is separated by cut-off or real core, and the cut-off or real core both ends are set into hole and portalled respectively；The roll squeezer and tooth
The inside of knife forming machine sets cavity, and the cavity is connected with entering hole and portalling respectively；The thermal source enters hole by air inlet section
Into the roll squeezer and the internal cavities of serrated knife forming machine, the sludge on firing equipment and equipment, by portalling and exhaust section
Device for transferring；
If the stirring type dryer is divided into dried layer by multiple dividing plates, the dividing plate be divided into cylindrical opening large baffle and
The small baffle of inner circle opening, the diaphragm internal set heating chamber, and the dividing plate top sets scraper plate, and the scraper plate passes through default
Different angles transports the material of dividing plate to different positions in same direction of rotation.
Further, the series of the roll squeezer is natural number no more than 10, the multistage roll squeezer to rotating drum
Spacing be sequentially reduced.
Further, the spacing to rotating drum can adjust.
Further, the series of the serrated knife forming machine is the natural number no more than 10, the multistage serrated knife forming machine
The spacing of rotary roll serrated knife is sequentially reduced.
Further, the spacing to rotary roll serrated knife can adjust.
Further, the quantity of the dividing plate is the positive integer no more than 20.
Further, the thermal source is provides the device of high-temperature, high pressure fluid, including boiler and/or compressor.
The beneficial effects of the invention are as follows：
The present invention is passed through thermal source in the operation of rolling in roller is rolled, and during sludge is rolled into mud cake, reduces
The water content of mud cake, makes mud cake more easy-formation, is easy to the processing of next step；
During sludge cake cuts granulating, adding thermal source further reduces the water content of mud cake, and ensure that
Granulating effect；
After the sludge of basic granulating enters stirring type dryer, the dividing plate heating that scraper plate transports the sludge of particle to multistage is dry
It is dry and stir so that desiccation is more thorough.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the main structure diagram of the present invention.
Fig. 2 is the present invention looks up structural representation of roll squeezer of the present invention.
Fig. 3 is the A-A cross-sectional views of roll squeezer of the present invention.
Fig. 4 is the present invention looks up structural representation of serrated knife forming machine of the present invention.
Fig. 5 is the B-B cross-sectional views of serrated knife forming machine of the present invention.
Fig. 6 is the main structure diagram of stirring type dryer of the present invention.
Fig. 7 is the C-C cross-sectional views of stirring type dryer of the present invention.
Fig. 8 is the D-D cross-sectional views of stirring type dryer of the present invention.
In figure：1- feeders, 2- roll squeezers, the outlet of 21- roll squeezers heating agent, 22- loading hoppers, 23- exhaust outlets, 24- rollers
Press heating agent entrance, 25- is to rotating drum, and 26- material scraping plates, 27- is to rotating drum main shaft；3- serrated knife forming machines, 31- serrated knife forming machines
Heating medium, the outlet of 32- serrated knife forming machines heating agent, 33- air inlets, 34- is to rotary roll serrated knife, and the clear frids of 35-, 36- is to rotary roll tooth
Knife main shaft；4- stirring type dryers, 41- hot wind inlets, 42- drying machine Heating mediums, 43- power set, 44- reductors, 45-
Drying machine discharge gate, 46- drying machine inlets, 47- moisture exhausting ports, 48a- forward direction scraper plates, 48b- back scrapers, 49a- small baffles,
49b- large baffles；5- thermals source, 6- discharging machines.
Embodiment
The present invention is further described with reference to the accompanying drawings and examples.
As shown in figure 1, a kind of sludge desiccation processing equipment, including thermal source 5 and sludge drying processor, the sludge drying
Processor from top to bottom includes roll squeezer 2, serrated knife granulating machine 3 and stirring type dryer 4 successively；The thermal source 5 is offer high temperature
The device of high-pressure fluid, including boiler and/or compressor.
As shown in Figures 2 and 3, the charging aperture of roll squeezer 2 sets loading hopper 22, and the roll squeezer 2 is included to rotating drum
25, the spacing to rotating drum 25 can adjust, and the device of the spacing adjustment includes the silk for being separately positioned on roller both ends
Thick stick, cylinder or/and oil cylinder；Pass through the adjustment of spacing so that the thickness of sludge cake is in appropriate scope, in order to next step
Slitting.Described to set the material scraping plate 26 being adjacent to the surface of rotating drum 25 to the discharging opening of rotating drum 25, material scraping plate 26 can prevent dirt
Mud cake is bonded in cylinder surface due to stickiness so that the ratio of briquetting and speed of production of sludge cake reduce.
As shown in Figures 4 and 5, the charging aperture of serrated knife granulating machine 3 docks the discharging opening of the roll squeezer 2, the serrated knife into
Grain machine 3 is included to revolving serrated knife 34, and the described pair of surface of rotation serrated knife 34 sets groove, the spacing of described pair of rotation serrated knife 34 along direction of rotation
It can adjust, the device of the spacing adjustment includes the leading screw, cylinder or/and oil cylinder for being separately positioned on roller both ends；By
Away from adjustment so that the shape of sludge bar is in suitable scope so that is more easy to fragment into smaller particle.The serrated knife granulating
The discharging opening of machine 3 sets the clear frid 35 being close to rotation serrated knife 34 surface, the notch geometry of clear frid 35 and the groove to revolving serrated knife 34
The shape of bottom and groove face is coincide, and clear frid 35 removes the mud granule being bonded in the rotation bottom land of serrated knife 34 and groove face, increase in time
The operational efficiency of equipment.
The roll squeezer 2 is hollow to rotation serrated knife main shaft 36 to rotating drum main shaft 27 and the serrated knife granulating machine 3
Axle, the hollow shaft set air inlet section and exhaust section, roll squeezer are connected respectively to the air inlet section and exhaust section of rotating drum main shaft 27
Heating agent outlet 21 and roll squeezer heating agent entrance 24, the air inlet section of described pair of rotation serrated knife main shaft 36 connected respectively with exhaust section serrated knife into
Grain machine Heating medium 31 and serrated knife granulating machine heating agent outlet 32.
The air inlet section and exhaust section are separated by cut-off or real core, the cut-off or real core both ends be set into respectively hole and
Portal；The inside of the roll squeezer 2 and serrated knife granulating machine 3 sets cavity, and the cavity is connected with entering hole and portalling respectively；It is described
Thermal source 5 enters hole into the internal cavities of the roll squeezer 2 and serrated knife granulating machine 3 by air inlet section, on firing equipment and equipment
Sludge, by portalling and exhaust section device for transferring；The roll squeezer 2 and serrated knife granulating machine 3 lead to during sludge is handled
The moisture crossed in heating constantly reduction sludge so that the better protrusion of final granulating.
Together with the serrated knife granulating machine 3 and the external connection of roll squeezer 2, in the drying process by being arranged on serrated knife
The air inlet 33 of the bottom of granulating machine 3 rises the negative pressure inlet occurred by high-temperature gas, and is pushed up eventually through roll squeezer 2 is arranged on
The exhaust outlet 23 in portion is vented.
As shown in Fig. 6,7 and 8, if the stirring type dryer 4 is divided into dried layer by multiple dividing plates, the dividing plate is divided into outer
The large baffle 49b of circle opening and the small baffle 49a of inner circle opening, the diaphragm internal set heating chamber, and the stirring-type is dried
Machine 4 heats air and dividing plate respectively by the hot wind inlet 41 and drying machine heating agent inlet and outlet 42 for being arranged on bottom so that sludge
Particle is more dried；The dividing plate top sets scraper plate, and the scraper plate presets different angles, drying machine is fixed on by skeleton
On main shaft, the drying machine main shaft passes through the positive scraper plate 48a or reversed arrangement of forward direction arrangement at same direction of rotation
Back scraper 48b transports the material of dividing plate to different positions, falls large baffle 49b or inner circle opening in lower floor cylindrical opening
Small baffle 49a, until dropping out drying machine discharge gate 45；The main shaft bottom sets power set 43 and reductor 44, is main shaft
Powered rotation, the power set 43 include motor and fuel oil or gas engine, and the reductor 44 includes cone tooth
Take turns reductor, parallel gears reductor and planet-gear speed reducer.
The discharging opening of the drying machine sets discharging machine 6, the discharging machine 6 can according to the granulating needs of serrated knife granulating machine 3,
Dry mud is transported to and formulates position, takes the dry mud back-mixing in part, reduction enters forming part moisture.
The roll squeezer 2 and serrated knife granulating machine 3 evaporate caused water vapour discharges from exhaust outlet 23, stirring type dryer 4
Water vapour caused by evaporation is discharged from the moisture exhausting port 47 being located on top cover, if any peculiar smell, what exhaust outlet 23 and moisture exhausting port 47 were discharged
Gas empties after can be collected into spray column processing deodorization.
A kind of sludge drying processing method, including, first by feeder 1 by by the simple dirt air-dried with precipitation process
Mud is transported to the loading hopper 22 of roll squeezer 2；Then, loading hopper 22 will be rolled into thin mud cake after material collection into roll squeezer 2,
Sludge is reduced its moisture by the heating evaporation of roll squeezer 2 simultaneously；Again, serrated knife granulating machine 3 cuts into inch strips thin mud cake, simultaneously
Heated further to reduce its moisture, strip sludge is broken into the particle of not regular length by Action of Gravity Field；Simultaneously can basis
Granulating is needed, and the sludge that will have partly granulated can also be taken to be added in high moisture sluge, and reduction enters forming part moisture；
Finally, mud granule enters stirring type dryer 4 by heating for multiple times and stirred, and the moisture of mud granule is reduced into specified model
Enclose, specified location is transported to by discharging machine 6, complete sludge drying processing.
Embodiment 2
The present embodiment and the primary structure of embodiment one are substantially the same, and its difference is：The series of roll squeezer 2 is little
In 10 natural number, preferably 3 grades, the spacing to rotating drum 25 of the roll squeezer 2 is sequentially reduced；3 grades of the serrated knife granulating machine
Number is the natural number no more than 10, and preferably 2 grades, the spacing to rotation serrated knife 34 of the serrated knife granulating machine 3 is sequentially reduced.So set
The purpose of meter is that the utilization of the energy is more efficient in the case where ensureing ratio of briquetting and aridity.
It is understood that above with respect to the specific descriptions of the present invention, it is merely to illustrate the present invention and is not limited to this
Technical scheme described by inventive embodiments, it will be understood by those within the art that, still the present invention can be carried out
Modification or equivalent substitution, to reach identical technique effect；As long as meet use needs, all protection scope of the present invention it
It is interior.
Claims (8)
- A kind of 1. sludge drying processing method, it is characterised in that：Including, first by feeder (1) will pass through it is simple air-dry and The sludge of precipitation process is transported to roll squeezer (2) loading hopper (22)；Then, loading hopper (22) will be rolled into thin mud cake after material collection into roll squeezer (2), while sludge is by roll squeezer (2) heating evaporation reduces its moisture；Again, serrated knife granulating machine (3) cuts into inch strips thin mud cake, at the same it is heated further reduce its moisture, strip sludge by Action of Gravity Field is broken into the particle of not regular length；Simultaneously can be according to granulating needs, can also take partly to have granulated Sludge is added in high moisture sluge, and reduction enters forming part moisture；Finally, mud granule enters stirring type dryer (4) by heating for multiple times and stirred, and the moisture of mud granule is reduced to Specified range, specified location is transported to by discharging machine (6), complete sludge drying processing.
- 2. a kind of sludge desiccation processing equipment, including thermal source (5) and sludge drying processor, it is characterised in that：The sludge is done Change processor from top to bottom includes roll squeezer (2), serrated knife granulating machine (3) and stirring type dryer (4) successively；Roll squeezer (2) charging aperture sets loading hopper (22), and the roll squeezer (2) is included to rotating drum (25), described right Rotating drum (25) discharging opening sets the material scraping plate (26) being adjacent to rotating drum (25) surface；Serrated knife granulating machine (3) charging aperture docks the discharging opening of the roll squeezer (2), and the serrated knife granulating machine (3) includes pair Serrated knife (34) is revolved, described pair of rotation serrated knife (34) surface sets groove along direction of rotation, and serrated knife granulating machine (3) discharging opening is set It is close to the clear frid (35) to revolving serrated knife (34) surface；The main shaft of the roll squeezer (2) and serrated knife granulating machine (3) is hollow shaft, and the hollow shaft sets air inlet section and exhaust section, The air inlet section and exhaust section are separated by cut-off or real core, and the cut-off or real core both ends are set into hole and portalled respectively；Institute The inside for stating roll squeezer (2) and serrated knife granulating machine (3) sets cavity, and the cavity is connected with entering hole and portalling respectively；For the stirring type dryer (4) if being divided into dried layer by multiple dividing plates, the dividing plate is divided into the large baffle of cylindrical opening (49b) and the small baffle of inner circle opening (49a), the diaphragm internal set cavity, and the dividing plate top sets scraper plate, described to scrape Plate transports the material of dividing plate to different positions by presetting different angles in same direction of rotation.
- A kind of 3. sludge desiccation processing equipment as claimed in claim 2, it is characterised in that：The roll squeezer (2) be single-stage or Multistage, the series of the roll squeezer (2) are the natural number no more than 10, the multistage roll squeezer (2) to rotating drum (25) Spacing is sequentially reduced.
- A kind of 4. sludge desiccation processing equipment as claimed in claim 2 or claim 3, it is characterised in that：It is described to rotating drum (25) Spacing can adjust.
- A kind of 5. sludge desiccation processing equipment as claimed in claim 2, it is characterised in that：The serrated knife granulating machine (3) is single Level is multistage, and the series of the serrated knife forming machine (3) is the natural number no more than 10, pair of the multistage serrated knife granulating machine (3) The spacing of rotation serrated knife (34) is sequentially reduced.
- A kind of 6. sludge desiccation processing equipment as described in claim 2 or 5, it is characterised in that：Described pair of rotation serrated knife (34) Spacing can adjust.
- A kind of 7. sludge desiccation processing equipment as claimed in claim 2, it is characterised in that：The quantity of the dividing plate be no more than 20 positive integer.
- A kind of 8. sludge desiccation processing equipment as claimed in claim 2, it is characterised in that：The thermal source (5) is offer high temperature The device of high-pressure fluid, including boiler and/or compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711196183.9A CN107814472B (en) | 2017-11-25 | 2017-11-25 | Sludge drying treatment method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111302588A (en) * | 2020-03-24 | 2020-06-19 | 爱泽尔环保科技(江苏)有限公司 | Special drying equipment for paste materials |
| CN112694232A (en) * | 2020-12-29 | 2021-04-23 | 南京中盛宏信环保工程有限公司 | Two-stage treatment method for sludge reduction |
| CN113461290A (en) * | 2021-05-28 | 2021-10-01 | 李昌军 | Water and sludge separation equipment for sludge treatment and use method |
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| CN111302588A (en) * | 2020-03-24 | 2020-06-19 | 爱泽尔环保科技(江苏)有限公司 | Special drying equipment for paste materials |
| CN112694232A (en) * | 2020-12-29 | 2021-04-23 | 南京中盛宏信环保工程有限公司 | Two-stage treatment method for sludge reduction |
| CN113461290A (en) * | 2021-05-28 | 2021-10-01 | 李昌军 | Water and sludge separation equipment for sludge treatment and use method |
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| CN107814472B (en) | 2023-12-29 |
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Denomination of invention: A method and device for sludge drying treatment Granted publication date: 20231229 Pledgee: Tangyin Xingfu Village Bank Co.,Ltd. Pledgor: Torch Technology (Henan) Co.,Ltd. Registration number: Y2024980002209 |