CN106116094A - Change spacing screw extruding mud drying system based on solar groove type heat collector - Google Patents

Change spacing screw extruding mud drying system based on solar groove type heat collector Download PDF

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Publication number
CN106116094A
CN106116094A CN201610595954.0A CN201610595954A CN106116094A CN 106116094 A CN106116094 A CN 106116094A CN 201610595954 A CN201610595954 A CN 201610595954A CN 106116094 A CN106116094 A CN 106116094A
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CN
China
Prior art keywords
mud
spacing screw
oil
sludge
oil return
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Pending
Application number
CN201610595954.0A
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Chinese (zh)
Inventor
柳国栋
庞智虹
苏焕雨
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Tongji University
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Tongji University
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Publication date
Application filed by Tongji University filed Critical Tongji University
Priority to CN201610595954.0A priority Critical patent/CN106116094A/en
Publication of CN106116094A publication Critical patent/CN106116094A/en
Pending legal-status Critical Current

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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
    • 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
    • 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
    • C02F11/16—Treatment of sludge; Devices therefor by de-watering, drying or thickening using drying or composting beds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00—Solar heat collectors using working fluids
    • F24S10/70—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/44—Heat exchange systems
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Physics & Mathematics (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
  • Treatment Of Sludge (AREA)

Abstract

The present invention relates to a kind of change spacing screw extruding mud drying system based on solar groove type heat collector, including: sludge dryer: include oil return shell, be arranged on the drying chamber of oil return enclosure and lay respectively at sludge inlet and the sludge outlet at drying chamber two ends, it is filled with conduction oil in oil return shell, is used for providing mud baking needed heat；It is provided with change spacing screw rod inside drying chamber, becomes spacing screw flight spacing and the most uniformly reduce to sludge outlet end from mud entrance point；Solar energy integrator: include condenser lens and thermal-collecting tube, the two ends of thermal-collecting tube are connected with oil return shell and change spacing screw rod with pipeline by pump respectively.Compared with prior art, the present invention uses solar energy heating conduction oil to be directly used in and dries the compound drying mode combined with mechanical presses, improves efficiency of energy utilization, reduces and manufactures and O&M cost.

Description

Change spacing screw extruding mud drying system based on solar groove type heat collector
Technical field
The present invention relates to sludge drying field, be specifically related to a kind of change spacing screw rod based on solar groove type heat collector and squeeze Pressure mud drying system.
Background technology
Water is the primary condition of human survival, is impact and the key factor of restriction social development.The biggest The water resource of some areas all critical shortages, on the other hand, the sharp increase of population, the development of industry, the mankind are again in system Make substantial amounts of pollutant.Shortage of water resources and water resource pollution are two hang-ups that the mankind currently face.
Eighties of last century, along with humans-nature relationship constantly intensifies, people gradually recognize only sewage disposal and sewage Reuse is only and solves the override way that shortage of water resources pollutes with water.And currently process to water pollution problems mainly uses Pollutant are separated from the water by various physics, chemistry and biological way, then focus on the separation solid " dirt concentrating pollution Mud ".Obviously, if to the most thoroughly solving the process problem of mud, the pollutant in mud will return to greatly by all means Natural, the treatment effect that water body is the best is the most all made a futile effort.
At present in numerous methods of the process of mud, it is to be used further to industry after solid particle or agricultural is used by drying sludge Way is to be most widely used, and is also one of the most ripe method of technological accumulation.
Dry technology is a kind of ancient and general unit operating technology, to 20 world six the seventies, drying sludge skill Art progressively improves.Enter phase late 1980s, owing to mud is filling out sea, throw sea, agricultural various restrictive conditions and Highlighting of unfavorable factor, also due to this technology is in the successful Application of some Sewage Plant of country such as Sweden, makes sludge drying technique Popularization quickly is obtained in western industrial developed country.
Sludge drying technique update the development having pushed directly on sludge treatment means, be allowed in safety, reliably The obtaining of property and sustainability ensures the most reliably.Nowadays drying sludge technology is also paid attention to by developing country, opens Begin to be developed and promote.But due to drying equipment investment height, equipment energy consumption is high, and most equipment also needs to for China Import, maintenance cost is the most at a relatively high.Further, the energy consumption reducing drying equipment remains a problem the biggest.
In recent years, solar energy, as available novel energy, progressively becomes the emphasis of domestic and international utilization of energy.Solar energy It it is a kind of extraordinary clean energy resource.China's solar energy year amount of radiation 3520～6520MJ/m2Between, if taking average 5020MJ/m2 Calculating, it is equivalent to produce per year on every square meter soil the heat of 1,200,000 kilocalories, namely 170 kilograms of mark coals.If build one 2500 flat The solar energy plastic sheeting of rice, heat utilization efficiency is 70%, is equivalent to save 300 tons of mark coals every year.Therefore, how should by solar energy For sludge drying field, become a general orientation of current research.
Summary of the invention
Defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and provide a kind of and add through solar energy Conduction oil after heat and change spacing screw rod carry out the change spacing screw rod based on solar groove type heat collector of baking and curing to mud Extruding mud drying system.Use solar energy heating conduction oil to be directly used in and dry the compound drying side combined with mechanical presses Formula, improves efficiency of energy utilization, reduces and manufactures and O&M cost.
The purpose of the present invention can be achieved through the following technical solutions: between a kind of change based on solar groove type heat collector Away from screw extruding mud drying system, including:
Sludge dryer: include oil return shell, be arranged on the drying chamber of oil return enclosure and lay respectively at drying chamber The sludge inlet at two ends and sludge outlet, be provided with change spacing screw rod, between described change spacing screw flight inside described drying chamber The most uniformly reducing to sludge outlet end away from from mud entrance point, the inside of described oil return shell and change spacing screw rod is filled with leads Deep fat, is used for providing mud baking needed heat；
Solar energy integrator: include condenser lens and thermal-collecting tube, the two ends of described thermal-collecting tube are respectively by pump and pipeline and institute State oil return shell and become the connection of spacing screw rod.
Described oil return shell includes inner and outer wall, is hollow housing between described inner and outer wall, described inwall shape Becoming drying chamber, the sludge outlet end of described outer wall is provided with observation upper cover and waste gas outlet, described waste gas outlet connection drying chamber, institute The mud entrance point stating outer wall is provided with oil-out, and described oil-out is connected with described thermal-collecting tube.
Described change spacing screw rod includes the conduction oil axle of hollow and is arranged on the screw thread blade on conduction oil axle surface, institute The flight pitch stating screw thread blade the most uniformly reduces to sludge outlet end from mud entrance point, and the mud of described conduction oil axle enters Mouth end connects thermal-collecting tube, and the other end of conduction oil axle connects with the hollow housing of oil return shell.
The a length of 8-14m of described change spacing screw rod, the flight pitch of described screw thread blade mud entrance point is 20- 40cm, the flight pitch of screw thread blade sludge outlet end is 10-30cm.Flight pitch on screw thread blade is sequentially reduced, mud Can be extruded by screw thread blade during advancing along with screw thread blade, thus the moisture in mud is squeezed out, be entered One step promotes the dehydrating effect of mud.
Described solar energy integrator also includes the frame for supporting condenser lens, and described condenser lens is concave mirror, described Thermal-collecting tube is positioned at the focal point of described condenser lens, and such design can make solar energy obtain higher utilization ratio.
The work process of the present invention is divided into conduction oil circuit and mud circuit, and two lines road is as follows:
Conduction oil circuit: owing to thermal-collecting tube is positioned in the focus of condenser lens, therefore sunlight is concentrated on thermal-arrest by condenser lens Guan Shang, utilizes the conduction oil in solar energy heating thermal-collecting tube；Conduction oil after heating is pumped to become the conduction oil of spacing screw rod In axle, mud is conducted heat；Then during conduction oil enters the hollow housing of oil return shell by conduction oil axle, and reverse flow Returning to the mud entrance point of oil return shell, continue as mud in the process and provide heat, last conduction oil flows out from oil-out, It flow to thermal-collecting tube by blowback, complete circulation.
Mud circuit: mud enters drying chamber from charging aperture, and along with the rotation of screw thread blade moves forward, in the mistake advanced Conduction oil in Cheng Zhong, with conduction oil axle and hollow housing carries out heat exchange dries；On the other hand, between due to screw thread blade Away from being gradually reduced, so mud is constantly extruded, moisture is extruded from mud.Dried mud granule is arranged from discharging opening Go out, discharge from waste gas outlet after waste water evaporation, and carry out follow-up focusing on.
Compared with prior art, beneficial effects of the present invention is embodied in following several respects:
(1) this product heats by conduction oil is used for mud as heat transfer medium, can improve efficiency of energy utilization, save Cost；
(2) mechanical presses dehydration is combined with high temperature dehydration, improve production efficiency and mud handling capacity；
(3) present configuration is simple, and production cost and operation expense are relatively low, and the arrangement area for the treatment of capacity and needs is more It is suitable for the Treatment of Sludge factory of China Small Urban.
Accompanying drawing explanation
Fig. 1 is the connection diagram of the present invention；
Fig. 2 is the structural representation of solar energy integrator of the present invention；
Fig. 3 is the structural representation of sludge dryer of the present invention；
Fig. 4 is the schematic flow sheet of conduction oil circuit of the present invention；
Fig. 5 is the schematic flow sheet of mud circuit of the present invention.
Wherein, 1 is condenser lens, and 2 is frame, and 3 is thermal-collecting tube, and 4 is charging aperture, and 5 is discharging opening, and 6 is waste gas outlet, and 7 are Observing upper cover, 8 is conduction oil axle, and 9 is screw thread blade, and 10 is drying chamber, and 11 is oil return shell, and 12 is oil-out, and 13 is No. one Oil pump, 14 is No. two oil pumps, and 15 is sludge pump, and 16 is solar energy integrator, and 17 is sludge dryer, and 18 is oil sump tank.
Detailed description of the invention
Elaborating embodiments of the invention below, the present embodiment is carried out under premised on technical solution of the present invention Implement, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following enforcement Example.
Embodiment
A kind of change spacing screw extruding mud drying system based on solar groove type heat collector, its connect as it is shown in figure 1, This mud drying system includes solar energy integrator 16 and sludge dryer 17, and an oil is passed through in one end of solar energy integrator 16 Pump 13 is connected with the change spacing screw rod of sludge dryer 17, and the other end of solar energy integrator 16 passes sequentially through No. two oil pump 14 Hes Oil sump tank 18 is connected with the oil-out of sludge dryer 17, and the charging aperture of sludge dryer 17 is connected with sludge pump 15, through dirt The mud that mud dehydrator 17 processes ultimately becomes mud granule and waste gas, goes out from discharging opening and the waste gas of sludge dryer 17 respectively Mouth is discharged.
Wherein, solar energy integrator structure as in figure 2 it is shown, this solar energy integrator include condenser lens 1, frame 2 and Thermal-collecting tube 3, condenser lens 1 is fixed in frame 2, and condenser lens 1 is concave mirror, and thermal-collecting tube 3 is positioned in the focus of condenser lens 2.
The structure of sludge dryer is as it is shown on figure 3, this sludge dryer includes oil return shell 11, is arranged on oil return shell 11 Internal drying chamber 10 and lay respectively at sludge inlet 4 and the sludge outlet 5 at drying chamber two ends.Oil return shell 11 includes inwall And outer wall, it is hollow housing between inner and outer wall, inwall forms drying chamber 10, and the sludge outlet end of outer wall is provided with observation upper cover 7 and waste gas outlet 6, waste gas outlet 6 connects drying chamber 10, and the mud entrance point of outer wall is provided with oil-out 12, oil-out 12 and collection Heat pipe connects；Drying chamber 10 is internal is provided with change spacing screw rod, and this change spacing screw rod includes the conduction oil axle 8 of hollow and is arranged on The screw thread blade 9 on conduction oil axle 8 surface, the flight pitch of screw thread blade 9 is the most uniform to sludge outlet end from mud entrance point Reducing, the mud entrance point of conduction oil axle 8 connects the hollow housing of thermal-collecting tube 3, the other end of conduction oil axle 8 and oil return shell 11 Connection.Wherein, becoming a length of the 8～14m of spacing screw rod, the flight pitch of mud entrance point is 20～40cm, sludge outlet end Flight pitch be 10～30cm.In the present embodiment, a length of 10m of the change spacing screw rod of employing, the spiral shell of mud entrance point Stricture of vagina spacing is 30cm, and the flight pitch of sludge outlet end is 15cm.
The present embodiment uses L-QC 320 conduction oil.As shown in Figure 4, low temperature conduction oil is logical for the flow circuits of conduction oil The sunlight reflected by condenser lens when crossing thermal-collecting tube heats, and reaches the operating temperature of about 280 DEG C.At the work of an oil pump after heating With lower entrance conduction oil axle, rear entrance oil return shell also flows out through oil-out, and during this, high temperature heat conductive oil occurs with mud Heat exchange, temperature is reduced to about 120 DEG C.Low temperature conduction oil enters oil sump tank, and enters thermal-collecting tube under the effect of No. two oil pumps, And carry out next step heat exchange, complete circulation.
The method of operation of sludge dryer as it is shown in figure 5, after pretreatment water content be about the mud of 75% by mud It is pumped into the charging aperture of sludge dryer, then in drying chamber, is become spacing screw rod and transport to exit, and during the course Portion of water is lost by becoming the squeezing action of spacing screw rod.Simultaneously in drying chamber and high temperature heat conductive oil generation heat exchange, Moisture vaporization is made to escape.Moisture and the harmful gas of effusion are collected in exhaust ports and focus on.Dried mud Grain is discharged from discharging opening.
Solar thermal collector is heated technique and the technique collection of mud baker extruding heating mud of conduction oil by the present invention Become.Innovatively conduction oil is used in the middle of mud stoving process as heating medium.Simultaneously with mechanical presses dehydration as auxiliary Means improve mud drying efficiency.Needed for whole set process, place is little, and motility is high, good to the adaptability of weather.Baking needed energy Measure essentially from solar energy, while ensureing mud handling capacity, improve energy utilization efficiency, and reduce fossil energy Dependence Deng other non-renewable energy resources.It addition, for environmental conservation, this technological process has been simultaneously introduced what exhaust collection processed Link.Meet theory and the requirement of energy-saving and emission-reduction.
Furthermore, it is necessary to explanation be all features according to described in inventional idea of the present invention and equivalence change that principle is done or Person's simple change, is all included in the protection domain of patent of the present invention.Those skilled in the art can be right Described specific embodiment makes various amendment or supplements or use similar mode to substitute, without departing from the present invention Principle and structure or surmount scope defined in the claims, protection scope of the present invention all should be belonged to.

Claims (5)

1. a change spacing screw extruding mud drying system based on solar groove type heat collector, it is characterised in that described dirt Mud drying system includes:
Sludge dryer: include oil return shell (11), be arranged on the internal drying chamber (10) of oil return shell (11) and difference position In sludge inlet (4) and the sludge outlet (5) at drying chamber two ends, the internal change spacing screw rod that is provided with of described drying chamber (10), described Become spacing screw flight spacing the most uniformly to reduce to sludge outlet end from mud entrance point, described oil return shell (11) and change The inside of spacing screw rod is filled with conduction oil, is used for providing mud baking needed heat；
Solar energy integrator: include condenser lens (1) and thermal-collecting tube (3), the two ends of described thermal-collecting tube (3) are respectively by pump and pipeline It is connected with described oil return shell (11) and change spacing screw rod.
A kind of change spacing screw extruding mud based on solar groove type heat collector the most according to claim 1 dries system System, it is characterised in that described oil return shell includes inner and outer wall, is hollow housing between described inner and outer wall, described Inwall forms drying chamber (10), and the sludge outlet end of described outer wall is provided with observation upper cover (7) and waste gas outlet (6), described waste gas Outlet (6) connection drying chamber (10), the mud entrance point of described outer wall is provided with oil-out (12), and described oil-out (12) is with described Thermal-collecting tube (3) connects.
A kind of change spacing screw extruding mud based on solar groove type heat collector the most according to claim 2 dries system System, it is characterised in that described change spacing screw rod includes the conduction oil axle (8) of hollow and is arranged on conduction oil axle (8) surface Screw thread blade (9), the flight pitch of described screw thread blade (9) the most uniformly reduces to sludge outlet end from mud entrance point, The mud entrance point of described conduction oil axle (8) connects thermal-collecting tube (3), the other end of conduction oil axle (8) and oil return shell (11) Hollow housing connects.
A kind of change spacing screw extruding mud based on solar groove type heat collector the most according to claim 3 dries system System, it is characterised in that a length of the 8～14m of described change spacing screw rod, between the screw thread of described screw thread blade (9) mud entrance point Away from for 20～40cm, the flight pitch of screw thread blade (9) sludge outlet end is 10～30cm.
A kind of change spacing screw extruding mud based on solar groove type heat collector the most according to claim 1 dries system System, it is characterised in that described solar energy integrator also includes the frame (2) for supporting condenser lens (1), described condenser lens (1) being concave mirror, described thermal-collecting tube (3) is positioned at the focal point of described condenser lens (1).
CN201610595954.0A 2016-07-27 2016-07-27 Change spacing screw extruding mud drying system based on solar groove type heat collector Pending CN106116094A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610595954.0A CN106116094A (en) 2016-07-27 2016-07-27 Change spacing screw extruding mud drying system based on solar groove type heat collector

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Application Number Priority Date Filing Date Title
CN201610595954.0A CN106116094A (en) 2016-07-27 2016-07-27 Change spacing screw extruding mud drying system based on solar groove type heat collector

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120134563A (en) * 2011-06-02 2012-12-12 에코렉스(주) Equipment for drying organic sludge and system for manufacturing solid fual by using the equipment
CN203360250U (en) * 2013-07-22 2013-12-25 江苏康泰环保设备有限公司 Novel solar sludge drying device
CN104341086A (en) * 2014-10-16 2015-02-11 景津环保股份有限公司 Tank-type solar collector sludge drying technique and assembly
CN204529637U (en) * 2015-02-06 2015-08-05 江苏广域化学有限公司 A kind of continuous discharge sludge drying device
CN105481219A (en) * 2015-12-25 2016-04-13 江苏国松环境科技开发有限公司 Solar heat supply hollow blade slurry drying device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120134563A (en) * 2011-06-02 2012-12-12 에코렉스(주) Equipment for drying organic sludge and system for manufacturing solid fual by using the equipment
CN203360250U (en) * 2013-07-22 2013-12-25 江苏康泰环保设备有限公司 Novel solar sludge drying device
CN104341086A (en) * 2014-10-16 2015-02-11 景津环保股份有限公司 Tank-type solar collector sludge drying technique and assembly
CN204529637U (en) * 2015-02-06 2015-08-05 江苏广域化学有限公司 A kind of continuous discharge sludge drying device
CN105481219A (en) * 2015-12-25 2016-04-13 江苏国松环境科技开发有限公司 Solar heat supply hollow blade slurry drying device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
孙体昌: "《固液分离》", 31 August 2011, 中南大学出版社 *

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