CN101525209A - Mechanical dehydration half-drying system for sludge - Google Patents
Mechanical dehydration half-drying system for sludge Download PDFInfo
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- CN101525209A CN101525209A CN200810065482A CN200810065482A CN101525209A CN 101525209 A CN101525209 A CN 101525209A CN 200810065482 A CN200810065482 A CN 200810065482A CN 200810065482 A CN200810065482 A CN 200810065482A CN 101525209 A CN101525209 A CN 101525209A
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- dewatering
- drying system
- mechanical dehydration
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Abstract
The invention provides a sludge dewatering system, which belongs to the field of solid waste treatment and is suitable for dewatering requirements of sludge with various components. The system consists of two parts of a modification processing system for the sludge and an extrusion dewatering system for the sludge, makes water content of the sludge decreased from around 85 percent to below 40 percent in a half-dried state, makes the sludge extruded into regular sludge blocks or sludge granules while dewatering. The sludge dewatering system fills a blank that mechanical dehydration for the sludge is difficult to realize the dehydration effect, simultaneously fills a blank that the sludge dehydration needs to be performed in a steam mode, and greatly reduces the energy consumption for the sludge dewatering; and the sludge dewatering system has advantages of small volume, low running cost, high production efficiency, high degree of mechanization, and wide range of application, and is a novel sludge dewatering process which is most energy-saving and has clean production.
Description
Technical field
The invention belongs to the mechanical sludge dewatering anhydration system, be applicable to the needs of the sludge dewatering of heterogeneity.
Background technology
Mud is to carry out in the process of purifying treatment at sanitary sewage and trade effluent, moves, transforms, precipitates the settling that forms by the material in the water, or because the bed mud that the sedimentation of suspension in the water body forms.So mud is to be accompanied by all kinds of water purifications and the solid waste that forms, perhaps is semi-solid waste exactly.
The characteristic of mud is water ratio height (water ratio about 85%), and volume is big, and the organic content height contains multiple metallic element, and particle is thinner, and ventilation property is poor, contains a large amount of living microorganisms.Because the quantity of mud is big, and contains the pollutent of high density, therefore,, can cause serious secondary pollution to environment if can not deal carefully with.
Because the water ratio of mud cake is still higher, has fluid properties, causes its follow-up disposal difficulty and cost higher.At present, the direct landfill of many employings, because mud is too loose, can't carry out work such as compacting, covering in Sludge Surface, mud is along with percolate flows into gathering system together, cause leachate collection system to stop up, make the percolate of landfill yard be in unordered flow state, surrounding environment is caused serious pollution hazard.
The mud cake of high-moisture percentage is not suitable for direct burning equally, must make moisture evaporation to reduce its moisture content by natural air drying or input external heat source.At present, mummification to mud is divided into absolutely dryization (solid content reaches more than 85%) and half-driedization (solid content is about 55%) usually, no matter take any mummification mode, all must import external heat source, moisture in the mud is overcome and mud in bonding force between the colloidalmaterial become the water of free state, again by elevated temperature, when reaching the evaporating point of water, moisture evaporation is taken away with flue gas.The mummification equipment that adopts is generally selected drying tumbler for use at present, but floor space is bigger, and facility investment and working cost are all higher.
Present technique proposes various mechanical sludge dewatering anhydration systems, and the moisture in the mud is to deviate from the situation of liquid state, and once finish the process of granulation, the particle that mud is made has that characteristics moisturely are evenly distributed, granulating evenly, water ratio is stable at 30%-35%, calorific value, keep the original calorific value of mud more than 99%, this will be a technological innovation in the sludge treatment key link, and the reduction of sludge dewatering energy consumption, processing cost are reduced.Thereby broken through traditional mechanical sludge dewatering dehydration rate that is beyond one's reach, the present invention puts into operation in Guangdong Province.
Summary of the invention
The present invention provides the mechanical sludge dewatering anhydration system.It has compositions such as sludge feeder, sludge modification handler, dehydration extrusion machine.Be to be mud below 85% through the mechanical dehydration water ratio, mud is in mechanical sludge dewatering anhydration system of the present invention under the synergy such as physical-chemical principle, mechanical kinetics principle, moisture is deviate from liquid form, reduced to 35%-40% through the moisture percentage in sewage sludge of dehydration.
Advantage of the present invention is:
1. the moisture of mud is to deviate from the situation of liquid state, greatly reduces the energy consumption of dehydration, has saved a large amount of energy.
2. in the sludge dewatering process, do not lose the original calorific value of mud, the mud organic matter does not decompose.
3. the mud granule moisture distribution is even, wet nuclear phenomenon can not occur.
4. the device for dehydrating sladge waste volume is little, and running cost is low, lower noise, and the mechanization degree height, treatment capacity is big, and well heater can adopt the various energy, non-secondary pollution.
5. this equipment dewaters applicable to various composition mud, can be used for the mud of domestic sewage factory, the mud in paper mill, the mud of printing and dyeing mill, the bed mud in river etc.
6. because the mud granule particle diameter is even, calorific value is stable, and the material combustion that can be used for burning also can be used for burning for present technique provides the energy, or is used to fire light ceramic etc.
Description of drawings
As scheme a kind of mechanical dehydration half-drying system for sludge structural representation, it has dirty fresh feed pump (1), first material-storage jar (2), hydraulic pressure sludge feeder (3), the tapered screw rod of first freight container (4), well heater (5), first discharge port (6), second material-storage jar (7), mud feeding pump (8), second freight container (9) sludge dewatering equipment (10), outfall (11), the rotary conveyor (12) that is connected.
Embodiment
The moisture percentage in sewage sludge of sewage work after dehydration is about 85% mud, enter first material-storage jar (2) through extraordinary high pressure sewage sludge feed pump (1), after (2) mixing stirring makes mud and catalyzer thorough mixing, enter tapered screw rod (5) by hydraulic pressure sludge feeder (3) and carry out modified-reaction, under certain temperature controlling of well heater (5), make mud finish reaction, the modified-reaction of mud is finished in the successive process, mud through modification is discharged continuously by first discharge port (6), enter second material-storage jar (7), mud is transported in the sludge dewatering equipment (10) mud after modification by mud feeding pump (8), mud is through the high-pressure extrusion dehydration of (10), the sewage that mud is deviate from is discharged continuously by outfall (11), mud entered in (10) after 15 minutes, automatic control system by (10) activates to open (10) discharging, and dumper starts simultaneously, mud is unloaded from the plate of (10), and forming bulk, mud (water ratio 40%) sludge bulking after dehydration that unloads is transported to by mud rotary conveyor (12) and carries out the utilization of resources in the mud bin.
The demonstration project of this technology has been gone into operation in Shenzhen sewage work and has been moved sludge treatment scale 100 ton per day to 1000 ton per days.
Claims (6)
1. mechanical dehydration half-drying system for sludge, it is characterized in that: mainly be made up of two portions, a part is the sludge modification treatment system, and another part is a mud extrusion dehydration system.Total system is removable container-type structure, and the workshop does not need civil engineering, and equipment is installed in movably in the freight container.It has sewage sludge feed pump (1), first material-storage jar (2), hydraulic pressure sludge feeder (3), the tapered screw rod of first freight container (4), well heater (5), first discharge port (6), second material-storage jar (7), mud feeding pump (8), second freight container (9) sludge dewatering equipment (10), outfall (11), the rotary conveyor (12) that is connected.
2. a kind of mechanical dehydration half-drying system for sludge according to claim 1 is characterized in that: the interior discharge port of first material-storage jar (2) top is provided with the screw rod agitator, and is connected with the hydraulic pressure sludge feeder (3) of below.
3. according to the described a kind of mechanical dehydration half-drying system for sludge of claim 1, it is characterized in that: the tapered screw rod of tapered screw rod (5) is provided with the screw thread of several forms, deepens, the combined structure of displacement, and is furnished with alternating current machine and step-down gear.
4. according to the described a kind of mechanical dehydration half-drying system for sludge of claim 1, it is characterized in that: well heater (5) can adopt electrically heated, heat-conducting oil heating, high-temperature flue gas heating, saturation steam heating.
5. according to the described a kind of mechanical dehydration half-drying system for sludge of claim 1, it is characterized in that: mud feeding pump (8) is the screw rod feeding pump.
6. according to the described a kind of mechanical dehydration half-drying system for sludge of claim 1, it is characterized in that: sludge dewatering equipment (10) is steel plate pressure filtration dewatering machine, filtered driving force is the hydraulic pressure form, the water ratio of the mud after dehydration is below 40%, and each spin cycle is 15 fens kinds, and forms sludge bulking, thickness is 5mm-10mm, be vesicular, the surface is hard, is difficult for broken, be difficult for adhesion with filter cloth, have dumper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810065482A CN101525209A (en) | 2008-03-05 | 2008-03-05 | Mechanical dehydration half-drying system for sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810065482A CN101525209A (en) | 2008-03-05 | 2008-03-05 | Mechanical dehydration half-drying system for sludge |
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| Publication Number | Publication Date |
|---|---|
| CN101525209A true CN101525209A (en) | 2009-09-09 |
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| CN200810065482A Pending CN101525209A (en) | 2008-03-05 | 2008-03-05 | Mechanical dehydration half-drying system for sludge |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844859A (en) * | 2010-04-21 | 2010-09-29 | 北京机电院高技术股份有限公司 | Complete steam low-temperature thermally hardening, tempering and drying device and method for sludge |
| CN101979349A (en) * | 2010-08-06 | 2011-02-23 | 安徽合协生态环境科技有限公司 | Tubular pyrohydrolysis treatment method and device for sludge |
| CN102267795A (en) * | 2011-06-17 | 2011-12-07 | 中国科学院武汉岩土力学研究所 | Dewatered sludge drying method of wastewater treatment plant |
| CN103159390A (en) * | 2011-12-13 | 2013-06-19 | 财团法人工业技术研究院 | Filtering, concentrating and dewatering device |
| CN105254163A (en) * | 2015-11-05 | 2016-01-20 | 茆正伟 | Automatic sludge dewatering machine |
| CN105254162A (en) * | 2015-11-05 | 2016-01-20 | 茆正伟 | Automatic sludge dewatering system |
| US9242191B2 (en) | 2011-12-13 | 2016-01-26 | Industrial Technology Research Institute | Filtration dehydration apparatus |
| CN105366912A (en) * | 2015-11-20 | 2016-03-02 | 贵州绿纯环境开发有限公司 | Environment-friendly sludge dehydration device and dehydration method thereof |
| CN106219919A (en) * | 2016-08-31 | 2016-12-14 | 唐勇 | Movable type sludge processing system and method for sludge treatment |
| CN106242224A (en) * | 2016-08-12 | 2016-12-21 | 太仓市友联干燥粉碎设备有限公司 | A kind of pond river sludge drying system |
| CN109707030A (en) * | 2017-10-25 | 2019-05-03 | 汉斯琥珀欧洲公司 | For the structures and methods that object is separated and is discharged from waste water will be screened |
| CN110451764A (en) * | 2019-07-29 | 2019-11-15 | 浙江广勤环保科技有限公司 | A kind of sludge drying method using steel plate bed hot-flow flue |
| CN111116007A (en) * | 2019-12-31 | 2020-05-08 | 常州市深水城北污水处理有限公司 | Method for optimizing operation of concentration tank and improving efficiency |
-
2008
- 2008-03-05 CN CN200810065482A patent/CN101525209A/en active Pending
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101844859A (en) * | 2010-04-21 | 2010-09-29 | 北京机电院高技术股份有限公司 | Complete steam low-temperature thermally hardening, tempering and drying device and method for sludge |
| CN101844859B (en) * | 2010-04-21 | 2012-01-25 | 北京机电院高技术股份有限公司 | Complete steam low-temperature thermally tempering and drying device and method for sludge |
| CN101979349A (en) * | 2010-08-06 | 2011-02-23 | 安徽合协生态环境科技有限公司 | Tubular pyrohydrolysis treatment method and device for sludge |
| CN101979349B (en) * | 2010-08-06 | 2012-05-30 | 安徽合协生态环境科技有限公司 | Tubular pyrohydrolysis treatment method and device for sludge |
| CN102267795A (en) * | 2011-06-17 | 2011-12-07 | 中国科学院武汉岩土力学研究所 | Dewatered sludge drying method of wastewater treatment plant |
| US9242191B2 (en) | 2011-12-13 | 2016-01-26 | Industrial Technology Research Institute | Filtration dehydration apparatus |
| CN103159390A (en) * | 2011-12-13 | 2013-06-19 | 财团法人工业技术研究院 | Filtering, concentrating and dewatering device |
| CN105254163B (en) * | 2015-11-05 | 2017-10-27 | 盐城市远大环保设备有限公司 | Automate sludge dewatering equipment |
| CN105254162A (en) * | 2015-11-05 | 2016-01-20 | 茆正伟 | Automatic sludge dewatering system |
| CN105254163A (en) * | 2015-11-05 | 2016-01-20 | 茆正伟 | Automatic sludge dewatering machine |
| CN105254162B (en) * | 2015-11-05 | 2017-12-08 | 盐城市远大环保设备有限公司 | Automate sludge dewatering system |
| CN105366912A (en) * | 2015-11-20 | 2016-03-02 | 贵州绿纯环境开发有限公司 | Environment-friendly sludge dehydration device and dehydration method thereof |
| CN106242224A (en) * | 2016-08-12 | 2016-12-21 | 太仓市友联干燥粉碎设备有限公司 | A kind of pond river sludge drying system |
| CN106219919A (en) * | 2016-08-31 | 2016-12-14 | 唐勇 | Movable type sludge processing system and method for sludge treatment |
| CN106219919B (en) * | 2016-08-31 | 2019-04-12 | 唐勇 | Movable type sludge processing system and method for sludge treatment |
| CN109707030A (en) * | 2017-10-25 | 2019-05-03 | 汉斯琥珀欧洲公司 | For the structures and methods that object is separated and is discharged from waste water will be screened |
| US10994230B2 (en) | 2017-10-25 | 2021-05-04 | Huber Se | Arrangement and method for separating out and removing screenings from wastewater |
| CN110451764A (en) * | 2019-07-29 | 2019-11-15 | 浙江广勤环保科技有限公司 | A kind of sludge drying method using steel plate bed hot-flow flue |
| CN111116007A (en) * | 2019-12-31 | 2020-05-08 | 常州市深水城北污水处理有限公司 | Method for optimizing operation of concentration tank and improving efficiency |
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Open date: 20090909 |