CN103755122A - Sludge drying method and system based on vertical sludge distribution - Google Patents
Sludge drying method and system based on vertical sludge distribution Download PDFInfo
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- CN103755122A CN103755122A CN201410035747.0A CN201410035747A CN103755122A CN 103755122 A CN103755122 A CN 103755122A CN 201410035747 A CN201410035747 A CN 201410035747A CN 103755122 A CN103755122 A CN 103755122A
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- 238000001035 drying Methods 0.000 title claims abstract description 71
- 239000010802 sludge Substances 0.000 title claims abstract description 68
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 239000008187 granular material Substances 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 29
- 239000004744 fabric Substances 0.000 claims description 19
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 238000005469 granulation Methods 0.000 claims description 5
- 230000003179 granulation Effects 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 2
- 238000013022 venting Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 5
- 239000000446 fuel Substances 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 abstract description 2
- 239000000654 additive Substances 0.000 abstract 1
- 230000001877 deodorizing effect Effects 0.000 description 12
- 238000012545 processing Methods 0.000 description 8
- 238000001179 sorption measurement Methods 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000012546 transfer Methods 0.000 description 4
- 238000001994 activation Methods 0.000 description 3
- 238000007605 air drying Methods 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 238000004332 deodorization Methods 0.000 description 2
- 239000012065 filter cake Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
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- 239000010801 sewage sludge Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 241000609240 Ambelania acida Species 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 240000003183 Manihot esculenta Species 0.000 description 1
- 235000016735 Manihot esculenta subsp esculenta Nutrition 0.000 description 1
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- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000010905 bagasse Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- -1 burning Substances 0.000 description 1
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- 235000005822 corn Nutrition 0.000 description 1
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- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011499 joint compound Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- 238000000197 pyrolysis Methods 0.000 description 1
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- 238000012827 research and development Methods 0.000 description 1
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- 238000003860 storage Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Abstract
The invention discloses a sludge drying method and system based on vertical sludge distribution for preparing sludge with certain water content into sludge particles, and filling the sludge particles vertically into a sludge drying device in a drying chamber for drying. The sludge is subjected to mechanical press filtration, or is obtained by back-mixing treatment of dry sludge and wet sludge with the water content higher than 60%; in drying, the sludge particles which are placed at intervals in layering on the sludge drying device are subjected to drying treatment under swaying by flowing normal-temperature air, and dried air which absorbs moisture in sludge is exhausted, and is purified for environmental-friendly exhaust; the dried dry sludge is exhausted from the drying chamber so as to serve as fuels or is subjected to landfill treatment. According to the sludge drying method and system disclosed by the invention, sludge is dried at relatively low running cost without adding additives and using external heat sources so as to dry the sludge, and a convenient approach is provided for solving sludge pollution.
Description
Technical field
The present invention relates to a kind of method and system of sludge drying processing, particularly a kind of vertical cloth mud, sludge drying method and system take normal temperature air as mummification medium.
Background technology
The environmental problem in China and even the world becomes increasingly conspicuous, and as the sludge creation amount of bazardous waste, constantly increases, and adds existing huge storage, and sludge treatment becomes a hot issue of environment protection.
The common sludge treatment disposal technology route of China has landfill, compost, burning, mud is processed to dispose before links and is conventionally wanted dewatered sludge entering these, be convenient to the pressure that transportation also reduces the processing of Liao Hou road, also help thermochemistry disposal technologies such as adopting burning, pyrolysis.
Domestic and international many mechanisms and individual have carried out a large amount of research and development aspect sludge drying, and have made some progress.At present, sludge drying main technological route has heat drying (steam, hot blast, flue gas), mechanical mummification (press filtration, centrifugal), solar energy desiccation etc.These technology or consumption mass energy, or mummification effect is bad, or be subject to weather effect huge.
Air mummification (air-dry) energy consumption is low, effective, weather effect is little, correlation technique application Chinese patent, such as application number is 201010221730.6, name is called the sludge drying method and the system that in the Chinese patent application of sludge air drying method and system, disclose, application number is 201110414321.2, name is called the method for the residual active sludge drying and other treatment after adding milk of lime disclosing in the Chinese patent application of method of the Quick-air-drying of residual active sludge, and application number is 200910192763.X, name be called in the patent of a kind of sludge filter cake aerobic air drying method and device, disclose sludge filter cake fragmentation is dispersed into the drying and other treatment of carrying out after mud granule layer, so these patents are not yet fully excavated the potentiality of air mummification, it has larger room for improvement.
Summary of the invention
The object of this invention is to provide a kind of sludge drying method based on vertical cloth mud and system that can suitability for industrialized production, take normal temperature air as mummification medium, do not use outer thermal source, with less cost, better simply system, effectively realize sludge drying.
For achieving the above object, the present invention is using normal temperature air as mummification medium, adopt unique vertical cloth mud, increase the contact area of mud and air, by air, contact the variation of direction with mud, mud fully brushes at the indoor air that is subject to of air mummification, due to the effect of psychrometric difference and pressure difference again, moisture high-efficiency evaporating, the quick mummification of mud.
The method of sludge drying processing of the present invention comprises:
The wet mud with certain water ratio is made to mud granule;
Described mud granule is vertically hierarchically packed on the indoor mud drying device of mummification, to carry out the drying and other treatment under mobile normal temperature air;
By from the mummification Bas Discharged that absorbed moisture mud and carry out purifying treatment; And
Dry mud after mummification is discharged to mummification chamber.
More preferably, described wet mud obtains after mechanism filter-pressing obtains or processed higher than 60% wet mud and dewatered sludge back-mixing by water ratio.
Described drying method also comprises and will through the mud of mechanism filter-pressing, before granulation, carry out the step of break process.
Described normal temperature air blasts from mummification outdoor, reversibly along the long side direction of dry mud cage, flows.
Described purifying treatment comprises carries out carrying out environment protection emission after the processing of dedusting deodorizing to mummification air, and described method for dust removal is selected from one or both the combination in WATER-WASHING METHOD and cyclonic separation method; The method of described deodorizing is selected from one or more the combination in chemical deodorizing method, active carbon adsorption, activation process, adsorption by soil method.
Dry mud after drying and other treatment can be used as fuel or landfill disposal.
The present invention also provides a kind of sludge drying system based on vertical cloth mud; comprise nodulizer, mummification chamber; mud drying device; gas blower and mummification air purifying room; described nodulizer is for making mud granule by the mud with certain water ratio; it is indoor that described mud drying device is placed in described mummification; be used for vertically hierarchically accommodating mud granule; described gas blower is for providing the normal temperature mummification air mobile with certain speed to mummification is indoor, and described mummification air purifying room is for carrying out purifying treatment to the mummification air of discharging from mummification chamber.
More preferably, described sludge drying system also comprises blender, and described blender is for by water ratio, the wet mud more than 60% and the dewatered sludge of back-mixing stir.
Described sludge drying system also comprises crusher, and described crusher for carrying out break process by the mud through mechanism filter-pressing before granulation.
Described mud drying device comprises the dry mud cage that place several horizontal intervals, and the inherent vertical direction of each dry mud cage compartment of terrain is furnished with the dividing plate of several accommodating mud granules.
The surface of described dry mud cage and the surface of dividing plate are provided with mesh.
The indoor venting port that is also provided with mummification air of described mummification, and the relief outlet of dry mud.
Described mummification air purifying room comprises water mist dust-removing chamber, chemical deodorizing chamber and activated carbon adsorption bed, the indoor spray equipment that is respectively arranged with of described water mist dust-removing chamber and chemical deodorizing, described chemical deodorizing chamber further comprises acid solution deodorization chamber * winding paper and alkali lye deodorization chamber * winding paper, and described activated carbon adsorption bed further adsorbs airborne mummification peculiar smell.
In the present invention, described mummification chamber comprises the sealing mummification chamber that one or more levels are arranged in juxtaposition or vertical multi-layer is arranged.
For the processing of a large amount of wet mud, can build multiple anhydration systems, multiple anhydration systems can independently arrange blender, transfer roller, crusher, nodulizer, mummification air purifying room, also can share a set of.
Compared with prior art, the present invention has (1) without adding medicament, without external heat source, sludge drying is less than to 10% to water ratio; (2) energy containing of mud fully retains, and can further realize recycling; (3) can process wet mud, also can process other wet stocks, particularly drying rate be there is no the wet stock of particular requirement, as wet wood chip, corn cob slag, the dregs of a decoction, manioc waste, bagasse, mud coal, mineral aggregate etc.
Accompanying drawing explanation
Fig. 1 is the schema that the present invention is based on the sludge drying processing method of vertical cloth mud;
Fig. 2 is the structural representation that the present invention is based on the sludge drying treatment system of vertical cloth mud;
Fig. 3 is the side-view of mummification chamber and dry mud cage in Fig. 2.
Wherein in figure, element numbers is:
Blender 1; Transfer roller 2; Crusher 3; Granulation (sheet) machine 4; Gas blower 5; Mud drying device 6; Induced draft fan 7; Sludge drying chamber 8; Mummification air purifying room 9.
Embodiment
Below in conjunction with accompanying drawing of the present invention, the technical scheme of the embodiment of the present invention is carried out to clear, complete description.
Shown in Fig. 1, Fig. 2; the disclosed sludge drying processing method based on vertical cloth mud; it is by making the mud with certain water ratio after mud grain or mud sheet by nodulizer; be delivered on the indoor mud drying device of mummification to carry out the mummification of normal temperature air under brushing, specifically comprise the following steps:
First, the mud with certain water ratio is granulated, described water ratio take water ratio about 60% as good, for the wet mud of the water ratio approximately 80% producing from sewage work, can, by being about 20% dewatered sludge and stirring to strengthen by blender 1 intensity of wet mud with the water ratio of back-mixing, make wet moisture percentage in sewage sludge reach approximately 60%.Meanwhile, if the mud of required mummification is the mud through mechanism filter-pressing, without carrying out back-mixing processing, but send into again nodulizer after need to sludge crushing being processed through crusher, granulate.Next; by being delivered to nodulizer through the mud of back-mixing and break process, granulate; the shape of mud granule is not limit; can be spheroid, rectangular parallelepiped, cubes or other shapes; the size of rectangular-shaped mud granule is take thickness as 0.5-4cm, and length, width are that 0.5-4cm (size of other shapes is suitable therewith) is for good.
Second, pack mud granule into mummification indoor mud drying device and carry out drying and other treatment, described mud drying device comprises several parallel dry mud cages 6 of placing side by side, on each dry mud cage, be provided with the dividing plate that several vertical spacings are arranged, described mud granule falls into described dividing plate from the top of mud drying device.The surface of dry mud cage 6 is provided with mesh, and the diameter of mesh is less than mud granule, makes to be positioned over mud granule on dividing plate and can, from the spilling of dry mud cage, meanwhile, also not be provided with mesh on the dividing plate of accommodating mud granule, to be more conducive to the ventilation mummification of mud granule.The size of single dry mud cage, with long 0.5-5m, wide 1-5cm, high 0.5-5m is good.Dry mud cage selects the material of mesh to carry out layering, multiple dry mud cage parallel interval is arranged simultaneously, and the level interval of adjacent two dry mud cages 6, take 1-5cm as good, is beneficial to ventilation.
During mummification, open the gas blower 5 in mummification chamber 8, outside normal temperature air is blasted, air flow is along the long side direction (longitudinally) of dry mud cage, and the flow direction can commutate, and, after a direction air blast regular hour, after replacing direction, brushes again.Flowing air is fully contacted with mud, and the moisture in mud evaporate in air under the effect of psychrometric difference, pressure difference.
The 3rd, by induced draft fan 7, take the mummification air absorbing after moisture out of mummification chamber, and according to actual needs, be chosen in dedusting deodorizing in mummification air purifying room 9, outer row after purifying treatment.Method for dust removal is selected from one or both the combination in WATER-WASHING METHOD and cyclonic separation method; The method of described deodorizing is selected from one or more the combination in chemical deodorizing method, active carbon adsorption, activation process, adsorption by soil method.
After mummification finishes, the flashboard that mud drying device bottom arranges is opened, and extracts immediately dividing plate out, and dry mud particle is discharged, and it is outdoor from the relief outlet of mummification chamber, to be delivered to mummification, and the dry mud of discharge can be used as fuel or landfill.
As shown in Figure 2; the invention also discloses a kind of sludge drying treatment system based on vertical cloth mud; for the mud that will wet, carry out the air-dry processing of normal temperature, it comprises blender 1, transfer roller 2, crusher 3, nodulizer 4, gas blower 5, mud drying device 6, induced draft fan 7, mummification chamber 8, mummification air purifying room 9.Wherein, described blender 1 is for being stirred to the dewatered sludge of the water ratio of the wet mud of the water ratio producing from sewage work approximately 80% and back-mixing approximately 20% evenly, make wet moisture percentage in sewage sludge reach approximately 60%, thereby strengthen wet sludge intensity, to make the mud of granular or sheet.
Described transfer roller 2 for granulating the mud automatic transport after stirring with certain water ratio to nodulizer 4; if required mummification is the mud through mechanism filter-pressing; will be through crusher 3 by the processing of sludge crushing before sending into nodulizer 4 and granulating; nodulizer 4 is automatically made the mud of input to preset big or small particle (also can make mud sheet according to the different choice of mud), the mud granule in the present embodiment take thickness, length, width at 0.5-4cm as good.
In described mummification chamber 8, be placed with mud drying device, a side in mummification chamber 8 is equiped with gas blower 5, the air outlet of air after the top of mummification chamber 8 is also provided with mummification, induced draft fan 7 is equipped with at described air outlet place, for taking the mummification air absorbing after moisture out of mummification chamber to carry out follow-up purifying treatment.The bottom of mummification chamber is also provided with the relief outlet of dewatered sludge, for the mud after mummification is discharged.
After sending on the mud drying device in mummification chamber 8, the mud granule that nodulizer 4 is prepared can carry out drying and other treatment; described mud drying device 8 comprises several parallel dry mud cages of placing side by side; on each dry mud cage, be provided with the dividing plate that plural vertical spacing is arranged, described mud granule falls into described dividing plate from the top of mud drying device.The side surface of dry mud cage 6 is provided with mesh, the diameter of mesh is less than mud granule, and the mud granule that makes to be positioned on dividing plate can not spill from the side of dry mud cage, simultaneously, on the dividing plate of accommodating mud granule, be also provided with mesh, to be more conducive to the ventilation mummification of mud granule.
During mummification, the mud granule of being made by nodulizer is fallen into from mud drying device top, after accumulative total certain altitude; from the side of dry mud cage, insert the hollow clapboard with mesh; on dividing plate, continue to fall into wet mud granule, the like, on the dividing plate of all dry mud cage of as many as, all fill.Then open the indoor gas blower of mummification 5, outside normal temperature air is blasted, air flow is along the long side direction (longitudinally) of dry mud cage, and the flow direction can commutate.Air fully contacts with mud, and the moisture in mud evaporate in air under the effect of psychrometric difference, pressure difference.The mummification air absorbing after moisture is taken out of mummification chamber by induced draft fan 7, dedusting deodorizing in mummification air purifying room 9, outer row after purifying.Method for dust removal is selected from one or both the combination in WATER-WASHING METHOD and cyclonic separation method; The method of described deodorizing is selected from one or more the combination in chemical deodorizing method, active carbon adsorption, activation process, adsorption by soil method.It is outdoor that dry mud is delivered to mummification from the relief outlet of mummification chamber, and the dry mud of discharge can be used as fuel or landfill.
Technology contents of the present invention and technical characterictic have disclosed as above; but those of ordinary skill in the art still may be based on teaching of the present invention and announcements and are done all replacement and modifications that does not deviate from spirit of the present invention; therefore; protection domain of the present invention should be not limited to the content that embodiment discloses; and should comprise various do not deviate from replacement of the present invention and modifications, and contained by present patent application claim.
Claims (10)
1. the sludge drying method based on vertical cloth mud, is characterized in that comprising the following steps:
The wet mud with certain water ratio is made to mud granule;
Described mud granule is vertically hierarchically packed on the indoor mud drying device of mummification, to carry out the drying and other treatment under mobile normal temperature air;
By from the mummification Bas Discharged that absorbed moisture mud and carry out purifying treatment; And
Dry mud after mummification is discharged to mummification chamber.
2. the sludge drying method based on vertical cloth mud according to claim 1, is characterized in that: described wet mud obtains after mechanism filter-pressing obtains or processed higher than 60% wet mud and dewatered sludge back-mixing by water ratio.
3. the sludge drying method based on vertical cloth mud according to claim 2, is characterized in that: also comprise and will through the mud of mechanism filter-pressing, before granulation, carry out the step of break process.
4. the sludge drying method based on vertical cloth mud according to claim 1, is characterized in that: described normal temperature air blasts from mummification outdoor, reversibly along the long side direction of mud drying device, flows.
5. the sludge drying system based on vertical cloth mud; it is characterized in that: comprise nodulizer, mummification chamber; mud drying device; gas blower and mummification air purifying room; described nodulizer is for making mud granule by the mud with certain water ratio; it is indoor that described mud drying device is placed in described mummification; be used for vertically hierarchically accommodating mud granule; described gas blower is for providing the normal temperature mummification air mobile with certain speed to mummification is indoor, and described mummification air purifying room is for carrying out purifying treatment to the mummification air of discharging from mummification chamber.
6. the sludge drying system based on vertical cloth mud according to claim 5, is characterized in that: described sludge drying system also comprises blender, and described blender is for by water ratio, the wet mud more than 60% and the dewatered sludge of back-mixing stir.
7. the sludge drying system based on vertical cloth mud according to claim 5, is characterized in that: described sludge drying system also comprises crusher, and described crusher for carrying out break process by the mud through mechanism filter-pressing before granulation.
8. the sludge drying system based on vertical cloth mud according to claim 5, it is characterized in that: described mud drying device comprises the dry mud cage that place several horizontal intervals, the inherent vertical direction of each dry mud cage compartment of terrain is furnished with the dividing plate of several accommodating mud granules.
9. the sludge drying system based on vertical cloth mud according to claim 8, is characterized in that: the surface of described dry mud cage and the surface of dividing plate are provided with mesh.
10. the sludge drying system based on vertical cloth mud according to claim 5, is characterized in that: the indoor venting port that is also provided with mummification air of described mummification, and the relief outlet of dry mud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410035747.0A CN103755122B (en) | 2014-01-24 | 2014-01-24 | A kind of sludge drying method and system based on vertical cloth mud |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410035747.0A CN103755122B (en) | 2014-01-24 | 2014-01-24 | A kind of sludge drying method and system based on vertical cloth mud |
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| CN103755122A true CN103755122A (en) | 2014-04-30 |
| CN103755122B CN103755122B (en) | 2016-05-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109928595A (en) * | 2019-03-28 | 2019-06-25 | 北京科技大学 | Sludge deep drying method and system based on low-temperature heat source |
| CN113105087A (en) * | 2021-05-24 | 2021-07-13 | 安徽建筑大学 | Normal-temperature ventilation type sludge deep dehydration drying method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002052399A (en) * | 2000-08-10 | 2002-02-19 | Parker Engineering Kk | Chemical forming sludge dehydrating and drying apparatus |
| CN101671106A (en) * | 2009-09-28 | 2010-03-17 | 广州普得环保设备有限公司 | Method and device for sludge filter cake aerobic air drying |
| CN103130393A (en) * | 2013-03-20 | 2013-06-05 | 王兢 | Sludge drying processing method and system |
| CN203741199U (en) * | 2014-01-24 | 2014-07-30 | 王兢 | Vertical sludge distribution-based sludge drying system |
-
2014
- 2014-01-24 CN CN201410035747.0A patent/CN103755122B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002052399A (en) * | 2000-08-10 | 2002-02-19 | Parker Engineering Kk | Chemical forming sludge dehydrating and drying apparatus |
| CN101671106A (en) * | 2009-09-28 | 2010-03-17 | 广州普得环保设备有限公司 | Method and device for sludge filter cake aerobic air drying |
| CN103130393A (en) * | 2013-03-20 | 2013-06-05 | 王兢 | Sludge drying processing method and system |
| CN203741199U (en) * | 2014-01-24 | 2014-07-30 | 王兢 | Vertical sludge distribution-based sludge drying system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109928595A (en) * | 2019-03-28 | 2019-06-25 | 北京科技大学 | Sludge deep drying method and system based on low-temperature heat source |
| CN109928595B (en) * | 2019-03-28 | 2021-02-02 | 北京科技大学 | Sludge deep drying method and system based on low-temperature heat source |
| CN113105087A (en) * | 2021-05-24 | 2021-07-13 | 安徽建筑大学 | Normal-temperature ventilation type sludge deep dehydration drying method and device |
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| Publication number | Publication date |
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| CN103755122B (en) | 2016-05-25 |
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