WO1998055194A1 - Method and device for separating solid material from water - Google Patents
Method and device for separating solid material from water Download PDFInfo
- Publication number
- WO1998055194A1 WO1998055194A1 PCT/NL1998/000179 NL9800179W WO9855194A1 WO 1998055194 A1 WO1998055194 A1 WO 1998055194A1 NL 9800179 W NL9800179 W NL 9800179W WO 9855194 A1 WO9855194 A1 WO 9855194A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- air
- air flow
- solid material
- space
- water
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/10—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by fluid currents, e.g. issuing from a nozzle, e.g. pneumatic, flash, vortex or entrainment dryers
- F26B17/107—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by fluid currents, e.g. issuing from a nozzle, e.g. pneumatic, flash, vortex or entrainment dryers pneumatically inducing within the drying enclosure a curved flow path, e.g. circular, spiral, helical; Cyclone or Vortex dryers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/14—Evaporating with heated gases or vapours or liquids in contact with the liquid
Definitions
- the invention relates to a method and device for separating solid material from water, in particular waste water.
- waste water contaminated with solid material is released at very many locations, for instance in industry, including particularly the food processing industry and cattle farming industry, such methods and devices are generally known.
- methods of this type are also used for drying product flows such as coal slurries.
- Figure 1 shows in highly simplified manner a device of the prior art.
- Figure 2 shows an embodiment of the device according to the invention.
- Figure 3 shows a partial cross-section of a further embodiment variant.
- Figure 4 shows a further developed system in which the method according to the invention is applied.
- the known device as shown in figure 1 comprises a drying and separating device 1 comprising a frusto- conical chamber 2 to which air is fed via a conduit 3 which debouches tangentially on a large diameter of chamber 2.
- the air is supplied using an air pump or air compressor 6 driven by a combustion engine 7.
- Protruding into chamber 2 is a tube 4 the open end of which lies very close to the part of chamber 2 of small diameter.
- the air supplied via conduit 3 flows with an increasing vortex to the left in chamber 2 and enters the end of tube 4 where it will display a very strong vortex.
- the mixture comes from a storage reservoir 8 and is fed into conduit 5 in dosed manner via a dosing device 9.
- the supplied quantity of air is very much larger than the supplied quantity of mixture.
- an quantity of air is supplied of i5,ooo to 20,000 m 3 per hour.
- the device according to the invention relates primarily to the vortex device 1.
- the vortex device known from said international patent application is of complicated structure and at the location of the transition from the conical vortex chamber to tube 4 there occur flow losses which adversely affect the efficiency of the total device.
- a separating device is used in which no reversal of the flow direction of the air takes place.
- the device 15 comprises a vortex chamber 17 to which once again air with a great flow rate is supplied tangentially at a large diameter via a conduit 18.
- the vortex tube 16 connects onto the small diameter of the conical vortex chamber 17 so that the supplied air which is strongly vortical close to the small diameter arrives in this vortex tube 16 without flow direction reversal.
- the mixture feed conduit 19 debouches at the beginning of tube 16. Due to the known venturi action the mixture will be drawn out of conduit 19 into the air flow flowing through vortex tube 16.
- conduit 19 extending sideways through a wall of tube 16
- conduit 19 protrude into vortex tube 16 from the opposite end of the vortex chamber and coaxially therewith. This has the advantage that the radial part of conduit 19 cannot disturb the air flow.
- Figure 3 shows a partial cross-section of a further embodiment variant.
- a separate conical vortex chamber is not applied here, but the air from the pump or compressor is supplied on one side 21 of a tube 22 of constant diameter.
- helically extending plates 23 In the part connecting to supply side 21 are arranged helically extending plates 23 which ensure that the supply of the air is brought into a strong helical vortex.
- a constriction 24 which forms a venturi is formed in the part of tube 22 connecting onto the part in which helical plates 23 are arranged. Debouching just beyond the venturi is a mixture feed conduit 25 with which the aqueous mixture is carried into the strongly vortical air flow, wherein in the above described manner the water is taken up into the air and the solid material is released as relatively dry substance into a cyclone to be connected thereafter.
- Figure shows a further developed system in which the method according to the invention is applied.
- the central part is once again the vortex device 31, which is here shown schematically in the embodiment of figure 2 , but in which another embodiment can also be used.
- Fed to vortex device 31 in the above described manner is air which is provided at a high flow rate by means of an air pump 32.
- Pump 32 is driven with a combustion engine, in particular a diesel engine 33.
- the air from air pump 32 is guided via a heat exchanger 36, wherein this air, already raised in temperature by the compression, is further heated with cooling water from the cooling-water circuit 34 of engine 33.
- the hot exhaust gases from exhaust conduit 35 also relinquish their heat to the liquid in the circuit 34 in heat exchanger 46.
- an additional circuit can of course be constructed to which the heat from the cooling water of engine 33 and the exhaust gases is relinquished.
- the heated air arrives in vortex device 31 where it is mixed with the aqueous mixture. Due to the higher temperature thereof, the supplied air can contain more water, whereby the efficiency of device 30 increases.
- the solid material taken up into the air is carried via conduit 38 to cyclone 39, where the solid material is separated at 40 and the air containing the water is further transported via conduit 41.
- the air from cyclone 39 may still possess a considerable residual heat which is utilized in the preferred embodiment shown here to supply a biological purification device 42, shown here schematically, with heat and air by means of a bubble conduit 43.
- the operation of biological purification device 42 becomes more efficient and effective due to the supplied heat.
- the waste water fed via conduit 44 is pre-treated in biological cleaner 42 and leaves biological cleaner 42 through conduit 45 which carries the waste water with solid material taken up therein to the vortex device 31.
- conduit 45 is accommodated a further heat exchanger 37 in which the heat originating from engine 33 is likewise supplied to the mixture. Due to the obtained temperature increase of the mixture, the operation of vortex device 31 will improve further.
- the dry substance content of the (waste) water flow can be increased in the described single process run from 1% to 95%.
- the dry substance released at 40 can hereby be further processed in very suitable manner.
- the solid material is for instance an organic material, they can be usefully employed or for instance be further processed in an incinerator.
- the released heat can optionally be re- utilized to heat the air and mixture flows.
- the device shown in figure 4 is a preferred embodiment.
- the air can of course be discharged directly from conduit 41. Nevertheless, the device then still has a high efficiency due to the utilization of the heat generated by engine 33.
- the waste emission can also be minimized by using the air in a closed circuit. After leaving for instance the cyclones for separation of the solid material, the air is then first guided through gas driers which remove the water taken up into the air from this air.
- the gas driers may in per se known manner comprise a cooling device with which the air is cooled to such an extent that the water present therein condenses.
- the dried air is then fed back to the beginning of the closed circuit where it is compressed and optionally heated. Hazardous substances which may be present in the air will be largely removed therefrom with the condensate.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cyclones (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU65273/98A AU6527398A (en) | 1997-04-01 | 1998-04-01 | Method and device for separating solid material from water |
EP98911289A EP0975402A1 (en) | 1997-04-01 | 1998-04-01 | Method and device for separating solid material from water |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1005685A NL1005685C2 (en) | 1997-04-01 | 1997-04-01 | Method and device for separating solids from water. |
NL1005685 | 1997-04-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998055194A1 true WO1998055194A1 (en) | 1998-12-10 |
Family
ID=19764694
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NL1998/000179 WO1998055194A1 (en) | 1997-04-01 | 1998-04-01 | Method and device for separating solid material from water |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0975402A1 (en) |
AU (1) | AU6527398A (en) |
NL (1) | NL1005685C2 (en) |
PL (1) | PL335936A1 (en) |
WO (1) | WO1998055194A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999027316A1 (en) * | 1997-11-22 | 1999-06-03 | Twister Milieu B.V. | Device and method for separating liquid and solid constituents of a flow of material |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1048667A (en) * | 1972-05-18 | 1953-12-23 | Stamicarbon | Device and method for performing a chemical or physical reaction between a gas and a granular solid or a liquid material |
US3931683A (en) * | 1974-11-18 | 1976-01-13 | Crites Ray D | Dryer for particulate material |
WO1995031265A1 (en) * | 1994-05-11 | 1995-11-23 | Lawrence Paper Company | Method of recovery of printing ink wastes |
WO1996004054A1 (en) * | 1994-08-02 | 1996-02-15 | Precision Stainless, Inc. | Separation of components of mixtures |
-
1997
- 1997-04-01 NL NL1005685A patent/NL1005685C2/en not_active IP Right Cessation
-
1998
- 1998-04-01 WO PCT/NL1998/000179 patent/WO1998055194A1/en not_active Application Discontinuation
- 1998-04-01 PL PL33593698A patent/PL335936A1/en unknown
- 1998-04-01 AU AU65273/98A patent/AU6527398A/en not_active Abandoned
- 1998-04-01 EP EP98911289A patent/EP0975402A1/en not_active Ceased
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1048667A (en) * | 1972-05-18 | 1953-12-23 | Stamicarbon | Device and method for performing a chemical or physical reaction between a gas and a granular solid or a liquid material |
US3931683A (en) * | 1974-11-18 | 1976-01-13 | Crites Ray D | Dryer for particulate material |
WO1995031265A1 (en) * | 1994-05-11 | 1995-11-23 | Lawrence Paper Company | Method of recovery of printing ink wastes |
WO1996004054A1 (en) * | 1994-08-02 | 1996-02-15 | Precision Stainless, Inc. | Separation of components of mixtures |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999027316A1 (en) * | 1997-11-22 | 1999-06-03 | Twister Milieu B.V. | Device and method for separating liquid and solid constituents of a flow of material |
Also Published As
Publication number | Publication date |
---|---|
EP0975402A1 (en) | 2000-02-02 |
PL335936A1 (en) | 2000-05-22 |
NL1005685C2 (en) | 1998-10-14 |
AU6527398A (en) | 1998-12-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102690035B (en) | System and process for drying sludge using pulse combustion internal heating fluid bed | |
EP0088174B1 (en) | An improved drying method and apparatus | |
US8282772B2 (en) | Method and apparatus for processing wastewater | |
JPH02237700A (en) | Sludge drying method | |
CN205850536U (en) | A kind of tower tail gas treatment device | |
US4721457A (en) | Method and apparatus for cleaning and drying metal chips | |
CN106152768A (en) | Drying system and drying means for high-moisture material | |
KR100996951B1 (en) | Apparatus for drying sludge | |
CN1055990A (en) | Refuse treatment plant and method | |
WO1998055194A1 (en) | Method and device for separating solid material from water | |
JP4420737B2 (en) | Direct pressurization heat pump type processing equipment | |
CN1268198A (en) | Plant for producing and treating wood fibres | |
JP2005331210A5 (en) | ||
JP3709521B2 (en) | Organic waste treatment equipment | |
CN108264209A (en) | Sludge dry system and method | |
CN209383651U (en) | Sludge drying mechanism | |
KR101348789B1 (en) | Sludge drying apparatus | |
WO2004097317A1 (en) | A dryer directly contacting with heating device using vibration | |
TWM559319U (en) | Sludge drying system | |
TWI834420B (en) | A mechanical dry-cleaning method for a chemical furnace pipe | |
CN215892963U (en) | Drying equipment for garbage disposal system and garbage disposal system | |
KR102009190B1 (en) | Sludge recovery system of sludge fueling system | |
CN213950944U (en) | Sludge drying system | |
CN107356051B (en) | Drying device and multiple-effect drying system | |
TW201930205A (en) | Sludge drying system and method |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GE GH GM GW HU ID IL IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW SD SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1998911289 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1998911289 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
NENP | Non-entry into the national phase |
Ref country code: JP Ref document number: 1998542110 Format of ref document f/p: F |
|
WWE | Wipo information: entry into national phase |
Ref document number: 09402138 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: CA |
|
WWR | Wipo information: refused in national office |
Ref document number: 1998911289 Country of ref document: EP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 1998911289 Country of ref document: EP |