EP0280127A2 - Pneumodensitometric vibrating separator for sorting of heterogeneous bulk products - Google Patents
Pneumodensitometric vibrating separator for sorting of heterogeneous bulk products Download PDFInfo
- Publication number
- EP0280127A2 EP0280127A2 EP88102053A EP88102053A EP0280127A2 EP 0280127 A2 EP0280127 A2 EP 0280127A2 EP 88102053 A EP88102053 A EP 88102053A EP 88102053 A EP88102053 A EP 88102053A EP 0280127 A2 EP0280127 A2 EP 0280127A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- air
- separator
- side frames
- dust
- vibrating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
- B07B9/02—Combinations of similar or different apparatus for separating solids from solids using gas currents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B4/00—Separating by pneumatic tables or by pneumatic jigs
- B03B4/02—Separating by pneumatic tables or by pneumatic jigs using swinging or shaking tables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/14—Details or accessories
- B07B13/16—Feed or discharge arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
- B07B7/06—Selective separation of solid materials carried by, or dispersed in, gas currents by impingement against sieves
Definitions
- This invention covers a pneumodensitometric vibrating separator table for separation of heterogeneous bulk products, in particular compost, i.e. to separate fertilizers obtained through aerobic biotransformation of putrescible organic solid domestic wastefractions, from other foreign matter not yet kept back during previous sorting.
- Pneumodensitometric vibrating separators are known in which the vibrating or oscillating table, provided with a permeable bottom or bed through which air flows so as to form an air stream fluidizing the heterogeneous matter to be sorted out which is located above this air stream.
- this vibrating or oscillating motion is unidirectional according to pulses having a 20°-30° inclination with respect to the longitudinal sorting plane, this inclination being based upon the material to be treated; furthermore, the inclination angle of the separator table has the same direction as the vibration or oscillation pulse angle.
- the heterogeneous material on the table is thus separated by gravity due to the upwards penetrating air stream; the particulate matter having a higher specific gravity will tend to move downwards in touch with the table, while those with a lower specific gravity will tend to float.
- This means that the heavier components in touch with the table are exposed to the direct vibration or oscillation of the table and will move towards the top of the table where they are discharged, whereas lighter items will move downwards to be discharged there.
- Another disadvantage lies in the fact that it is impossible with existing pneomodensitometric separators to change the direction of vibration or oscillation so that the operating conditions cannot be adjusted to the nature of the material to be treated.
- This patent has the aim to eliminate all above listed drawbacks of the known pneumodensitometric separators and to optimize sorting of heterogeneous bulk material.
- the fluidizing bed is centered and is resting on intermediate supports.
- the table is well secured and the vibratory motion over its whole surface is perfectly uniform.
- the vibratory or oscillating motion is directly and evenly transmitted to the sorting plane by means of stiffening side frames.
- a rather high vibration frequency with low amplitude has been chosen so as to boost separation of even small sized high density matter.
- the unidirectional vibratory motion is indeed involving 1000 to 3000 vibrations per minute with a 0.5-4 mm amplitude.
- unidirectional vibration is achieved by two vibrators or rotary propelling devices having controlled eccentric masses generating centrifugal forces by their identical and coplanar opposed rotation.
- the propelling assembly is rigidly connected to the side frames by means of sturdy links so that the two equal and opposed centrifugal forces, when combined, will provide the unidirectional reciprocating force necessary to impress the required motion.
- the system connecting the propelling devices to the side frames permits to vary the angle ⁇ resulting from the direction of the vibration force and the longitudinal plane of the separator and this system is also equipped with longitudinal conveyance facilities, so that the unidirectional vibratory forces are always passing through the center of gravity of the machine. It follows that the movement of the pneumodensitometric table can be adjusted based upon the quality of the material to be classified, in order to ensure its operation in optimum conditions.
- the drawback regarding the non uniform fluidizing action of the air stream is obviated by using a special sandwich panel as a permeable bed, the top of which is consisting of a closely perforated metal sheet (with closely-spaced holes having a diameter ranging between 0.5 and 0.6 mm), while the bottom is consisting of a high strength but low permeability filter fabric (nylon, polyester or polyamide, etc.).
- This sandwich panel will require a high air generator pressure (about 450-550 mm w.c.) to obtain an adequate air flow for fluidizing of the material, while the down flow will be virtually independent from the height of the top layer of the material.
- the Patent also eliminates the trouble caused by the fact that dust raised during fluidizing of the material and now collected by dust collectors has to be conveyed to cyclones and separate dust catching filters.
- the dust collecting system is an integrating part of the separator and is consisting of a filter mounted on the pneumodensitomteric table so as to create a plenum chamber from which coarser dust particles will fall back onto the table, whereas the finer particles are held back by the filter, there to felt up or agglomerate, until they are periodically returned to the fluidizing bed. This greatly simplifies dust catching equipment since a separate delivery system with all related handling problems is no longer necessary.
- the system also includes facilities for processing of special materials containing shreds of plastics or other fibrous fabrics which tend to flutter during fluidizing.
- the pneumodynamometric Table may perform an oscillating movement, i.e. a low frequency reciprocating movement (150-450 cycles/minute and high amplitude raging between 10 and 40 mm).
- the porous sandwich panel 1 is consisting of a closely perforated metal top sheet 2 and in a bottom filtering cloth 3 in moisture resisting synthetic fabric.
- This porous panel 1 is placed transversally, in a centered position, properly shimmed 4, resting on the frame of the separator so as to ensure a stable configuration.
- the flanged panel edges are braced by stirrups 5 and turnbuckles 6 mounted on the side frames 7. This ensures a stable position of the perforated panel and its uniform vibratory motion.
- this sandwich panel has high strength and low permeability with respect to the fluidizing air flow.
- a closed chamber 8 is communicating at its lower end by means of an elastic coupling 9, with a high pressure fan 10 pressing the air through the porous panel.
- the vibrators 11 can rotate on the axis of the cross member 12 so that it will be possible to adjust the inclination angle ⁇ of the vibratory directions with respect to the longitudinal plane of the table 1 and the vibrators 11 can also be moved lengthwise forwards and backwards on the sections 14, so that the unidirectional vibrating force will pass through the center of gravity G of the vibrating part of the machine.
- This longitudinal traverse of the cross member 12 can be achieved, for example, by providing the section 14 with numerous holes in which the threaded ends of the U bolts 13 can be fitted.
- the pneumodensitometric table is supported by an appropriate mounting or frame 15 by means of flexible devices 16 such as cables, ropes, chains etc. secured to hooks 17 on the side frames 7.
- These flexible supporting means 16 are adjustable to ensure uniform distribution of the weight and position control of the table at its optimum longitidunal inclination angle ⁇ with respect to the horizontal plane.
- This angle ⁇ has the same direction as the angle ⁇ of the vibration forces with respect to the table plane.
- the unidirectional vibratory force has an ⁇ + ⁇ inclination with respect to the horizontal plane.
- An outlet 18 for the heavier particles B is provided in the upper section of the table while another outlet 19 in the lower table section discharges the finer and lighter particles C.
- the outlet 19 is fitted with an adjustable diaphragm 19 ⁇ determining the layer thickness of the material on the table.
- a feeder trough 10 delivers the product A on the pneumodensitometric table 1 for selection.
- the above explanations clearly illustrate the operation cycle.
- the product A to be sorted out is fed on the pneomodensitometric table 1 where it is fluidized by the air passing through the perforated plate. This will cause the broad or flat shaped light weight material having a low specific gravity, to be air entrained, without being effected by the vibratory impulses exerted on the table, while material having a high specific gravity will tend to settle on the vibrating surface and is thus moved forward under these pulse conditions.
- a dust filter chamber 21 is located above the mounting 15 and is secured to the side frames of the pneumodensitometric table by means of a bellows 22.
- This filter chamber 21 is housing cloth tube filters 21 ⁇ . Dust is sucked through these cloth tubes by means of a suction fan 23.
- This configuration permits to combine the vibrating separator and dust filter in one single structure, thus offering additional functional advantages, since a spacious plenum chamber is available between the pneumodensitometric table and the dust filter, which is very useful for collection of coarse dust particles. Furthermore, any dust settling externally on the cloth tube filter 21 ⁇ will tend to agglomerate or felt and can be periodically discharged once more on the vibrating table. This will make a separate dust selection unnecessary, since the dust is mixed with the lighter products C.
- this patent presents a handy facility for separation and recovery of such air entrained waste.
- This equipment is illustrated in Fig. n° 5 and n° 6 and is consisting of a loop shaped wire gauze or nylon belt 24 moving on two rolls or drums 25, 26, one of which 26 is motor-driven, acting as a tension roller and located at the back of the machine.
- This horizontal belt is intersecting the plenum chamber above the pneumodensitometric table and its lower leg moves towards the external roll 26.
- the lower outlet threshold 30 can be moved backward so that the air will prevailingly flow in direction of the arrow x with respect to y, to prevent the dust suction fan from generating excessive indraught in the machine which might detach the air entrained particles from the belt or prevent them from being externally discharged.
- the agglomerated dust when falling from the filter 21 will initially drop onto the upper belt section 24, to be conveyed to the roll 25 and from there dropped onto the pneumodensitometric table 1, to be subsequently discharged together with the lighter particles.
- the separator has therefore excellent operating features for sorting and classifying of heterogeneous material of any nature whatsoever; it has a built-in dust filter without separate dust recovery and also permits separation of air entrained matter which would be difficult to recover with existing separators.
Landscapes
- Combined Means For Separation Of Solids (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Characterised By The Charging Evacuation (AREA)
- Fats And Perfumes (AREA)
- Seasonings (AREA)
- Electrostatic Separation (AREA)
- Cleaning In General (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
Description
- This invention covers a pneumodensitometric vibrating separator table for separation of heterogeneous bulk products, in particular compost, i.e. to separate fertilizers obtained through aerobic biotransformation of putrescible organic solid domestic wastefractions, from other foreign matter not yet kept back during previous sorting.
- Pneumodensitometric vibrating separators are known in which the vibrating or oscillating table, provided with a permeable bottom or bed through which air flows so as to form an air stream fluidizing the heterogeneous matter to be sorted out which is located above this air stream. Usually, this vibrating or oscillating motion is unidirectional according to pulses having a 20°-30° inclination with respect to the longitudinal sorting plane, this inclination being based upon the material to be treated; furthermore, the inclination angle of the separator table has the same direction as the vibration or oscillation pulse angle.
- The heterogeneous material on the table is thus separated by gravity due to the upwards penetrating air stream; the particulate matter having a higher specific gravity will tend to move downwards in touch with the table, while those with a lower specific gravity will tend to float. This means that the heavier components in touch with the table are exposed to the direct vibration or oscillation of the table and will move towards the top of the table where they are discharged, whereas lighter items will move downwards to be discharged there.
- These known pneumodensitometric tables for separation of heterogeneous bulk products, operating according to the above mentioned principle, have however various drawbacks which make them little selective and inefficient. A first drawback is caused by the fact that existing pneumodensitometric tables have a rather uneven vibrating or oscillating motion because of their poorly secured, scantily stretched, flat perforated bottom. As a result, the perforated plate will be subject to deformation, particularly during use, losing its stiffness and uniform movement, negatively affecting the sorting operation. A second drawback is due to the vibration and oscillation characteristics as currently used, which do not allow for adequate separation of very dense, tine particle layers such as for instance glass splinters, sand, porcelane or earthenware chips, small pieces of rigid plastic material etc.
- Another disadvantage lies in the fact that it is impossible with existing pneomodensitometric separators to change the direction of vibration or oscillation so that the operating conditions cannot be adjusted to the nature of the material to be treated.
- The non uniform fluidizing action of the air stream passing through the perforated bed is another drawback. Existing tables are in porous material (felt, unwoven fabric, perforated plate, wire cloth etc.) all having the aim to minimize air flow resistance for obvious energy saving reasons. At the same time, the pressure has to be reduced also because of the above mentioned mechanical fastening defects of the table. The rate of discharge will therefore vary according to the density of the material, since the air tends to penetrate through the thinner part of the layer and this may even cause the material upwards to be hurled upwards while resulting of course in an irregular and uneven fluidizing process, which jeopardizes the efficiency of the equipment.
- This patent has the aim to eliminate all above listed drawbacks of the known pneumodensitometric separators and to optimize sorting of heterogeneous bulk material. According to this Patent, the fluidizing bed is centered and is resting on intermediate supports.
- It is kept stretched by appropriate devices located on the side frames. In this way, the table is well secured and the vibratory motion over its whole surface is perfectly uniform. According to the patent, the vibratory or oscillating motion is directly and evenly transmitted to the sorting plane by means of stiffening side frames.
- According to the Patent, a rather high vibration frequency with low amplitude has been chosen so as to boost separation of even small sized high density matter. The unidirectional vibratory motion is indeed involving 1000 to 3000 vibrations per minute with a 0.5-4 mm amplitude.
- Furthermore, according to the Patent, unidirectional vibration is achieved by two vibrators or rotary propelling devices having controlled eccentric masses generating centrifugal forces by their identical and coplanar opposed rotation. The propelling assembly is rigidly connected to the side frames by means of sturdy links so that the two equal and opposed centrifugal forces, when combined, will provide the unidirectional reciprocating force necessary to impress the required motion. The system connecting the propelling devices to the side frames permits to vary the angle α resulting from the direction of the vibration force and the longitudinal plane of the separator and this system is also equipped with longitudinal conveyance facilities, so that the unidirectional vibratory forces are always passing through the center of gravity of the machine. It follows that the movement of the pneumodensitometric table can be adjusted based upon the quality of the material to be classified, in order to ensure its operation in optimum conditions.
- According to the Patent, the drawback regarding the non uniform fluidizing action of the air stream is obviated by using a special sandwich panel as a permeable bed, the top of which is consisting of a closely perforated metal sheet (with closely-spaced holes having a diameter ranging between 0.5 and 0.6 mm), while the bottom is consisting of a high strength but low permeability filter fabric (nylon, polyester or polyamide, etc.). This sandwich panel will require a high air generator pressure (about 450-550 mm w.c.) to obtain an adequate air flow for fluidizing of the material, while the down flow will be virtually independent from the height of the top layer of the material.
- Furthermore, the Patent also eliminates the trouble caused by the fact that dust raised during fluidizing of the material and now collected by dust collectors has to be conveyed to cyclones and separate dust catching filters. Indeed, in this Patent, the dust collecting system is an integrating part of the separator and is consisting of a filter mounted on the pneumodensitomteric table so as to create a plenum chamber from which coarser dust particles will fall back onto the table, whereas the finer particles are held back by the filter, there to felt up or agglomerate, until they are periodically returned to the fluidizing bed. This greatly simplifies dust catching equipment since a separate delivery system with all related handling problems is no longer necessary.
- According to the Patent, the system also includes facilities for processing of special materials containing shreds of plastics or other fibrous fabrics which tend to flutter during fluidizing.
- As already explained before, this problem is particularly felt when separating compost. To eliminate this trouble, a closed loop nylon or wire gauze belt or strip is mounted on two rolls or drums, between the table and the dust catcher. This rotating belt will catch these fluttering particles adhering to its lower leg, discharging them at one end by gravity and with the aid of special devices.
- In subordinate, the pneumodynamometric Table may perform an oscillating movement, i.e. a low frequency reciprocating movement (150-450 cycles/minute and high amplitude raging between 10 and 40 mm).
- The invention in question is illustrated in its practical and exemplifying implementation in the enclosed drawings, in which:
- Fig. 1 shows a cross section of the pneumodensitometric table;
- Fig. 2 shows a side view of the pneumodensitometric table illustrated in Fig. 1;
- Fig. 3 shows in detail how the porous panel is connected to one side frame;
- Fig. 4 shows a side view of a separator, complete with dust catcher;
- Fig. 5 shows a side view of the separator illustrated in Fig. 4, fitted with a dust catcher for air entrained particles;
- Fig. 6 shows a side view of the discharging end of the dust collecting belt.
- With reference to these Figures: the
porous sandwich panel 1 is consisting of a closely perforated metal top sheet 2 and in a bottom filteringcloth 3 in moisture resisting synthetic fabric. - This
porous panel 1 is placed transversally, in a centered position, properly shimmed 4, resting on the frame of the separator so as to ensure a stable configuration. The flanged panel edges are braced by stirrups 5 and turnbuckles 6 mounted on theside frames 7. This ensures a stable position of the perforated panel and its uniform vibratory motion. Furthermore, this sandwich panel has high strength and low permeability with respect to the fluidizing air flow. - A closed
chamber 8, is communicating at its lower end by means of an elastic coupling 9, with ahigh pressure fan 10 pressing the air through the porous panel. - The unidirectional vibratory motion applied to the pneumodensitometric table by two electric
rotary vibrators 11 having eccentric masses, mounted at the opposite ends of atubular cross member 12 of great thickness, so that the two axes of rotation are parallel and coplanar while the two equal and combined counter-rotating centrifugal forces are resulting in an unidirectional reciprocating force necessary for the vibratory motion of the separator. Thetubular cross member 12, bearing thevibrators 11, is supported byU bolts 13 which can be moved along thesections 14, rigidly connected to theside frames 7. - The
vibrators 11 can rotate on the axis of thecross member 12 so that it will be possible to adjust the inclination angle α of the vibratory directions with respect to the longitudinal plane of the table 1 and thevibrators 11 can also be moved lengthwise forwards and backwards on thesections 14, so that the unidirectional vibrating force will pass through the center of gravity G of the vibrating part of the machine. This longitudinal traverse of thecross member 12 can be achieved, for example, by providing thesection 14 with numerous holes in which the threaded ends of theU bolts 13 can be fitted. - The pneumodensitometric table is supported by an appropriate mounting or
frame 15 by means offlexible devices 16 such as cables, ropes, chains etc. secured to hooks 17 on theside frames 7. - These
flexible supporting means 16 are adjustable to ensure uniform distribution of the weight and position control of the table at its optimum longitidunal inclination angle αʹ with respect to the horizontal plane. - This angle αʹ has the same direction as the angle α of the vibration forces with respect to the table plane. Hence, the unidirectional vibratory force has an α + αʹ inclination with respect to the horizontal plane. An
outlet 18 for the heavier particles B is provided in the upper section of the table while anotheroutlet 19 in the lower table section discharges the finer and lighter particles C. Theoutlet 19 is fitted with an adjustable diaphragm 19ʹ determining the layer thickness of the material on the table. Afeeder trough 10 delivers the product A on the pneumodensitometric table 1 for selection. - The above explanations clearly illustrate the operation cycle. The product A to be sorted out is fed on the pneomodensitometric table 1 where it is fluidized by the air passing through the perforated plate. This will cause the broad or flat shaped light weight material having a low specific gravity, to be air entrained, without being effected by the vibratory impulses exerted on the table, while material having a high specific gravity will tend to settle on the vibrating surface and is thus moved forward under these pulse conditions.
- Therefore, the lighter particles will flow downward (outlet 19) whereas the heavier products will move upwards towards the sorting table (outlet 18).
- According to this invention a
dust filter chamber 21 is located above themounting 15 and is secured to the side frames of the pneumodensitometric table by means of abellows 22. Thisfilter chamber 21 is housing cloth tube filters 21ʹ. Dust is sucked through these cloth tubes by means of asuction fan 23. - This configuration permits to combine the vibrating separator and dust filter in one single structure, thus offering additional functional advantages, since a spacious plenum chamber is available between the pneumodensitometric table and the dust filter, which is very useful for collection of coarse dust particles. Furthermore, any dust settling externally on the cloth tube filter 21ʹ will tend to agglomerate or felt and can be periodically discharged once more on the vibrating table. This will make a separate dust selection unnecessary, since the dust is mixed with the lighter products C.
- If the material to be sorted is not only containing hard and dense items (glass, stones, metals, pottery fragments etc.) but also shreds of air entrained plastic material, lint and the like, these would hinder efficient sorting and would rapidly clog the dust filters without adequate recovery. To obviate these drawbacks, this patent presents a handy facility for separation and recovery of such air entrained waste.
- This equipment is illustrated in Fig. n° 5 and n° 6 and is consisting of a loop shaped wire gauze or
nylon belt 24 moving on two rolls ordrums external roll 26. - The shreds, entrained by the air flowing towards the dust filters, will settle on the lower leg of the
belt 24 and are discharged outside the machine. Since the air is not flowing beyond the wall diaphragm 27, the discharged matter falls into a dust hopper D. - Falling is facilitated by the
air diffuser 28 detaching the air entrained particles from the belts, while arotary brush 29 will further clean thewire gauze 24. - The
lower outlet threshold 30 can be moved backward so that the air will prevailingly flow in direction of the arrow x with respect to y, to prevent the dust suction fan from generating excessive indraught in the machine which might detach the air entrained particles from the belt or prevent them from being externally discharged. - By this solution, the agglomerated dust when falling from the
filter 21, will initially drop onto theupper belt section 24, to be conveyed to theroll 25 and from there dropped onto the pneumodensitometric table 1, to be subsequently discharged together with the lighter particles. - Based upon this description, the separator has therefore excellent operating features for sorting and classifying of heterogeneous material of any nature whatsoever; it has a built-in dust filter without separate dust recovery and also permits separation of air entrained matter which would be difficult to recover with existing separators.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT88102053T ATE65719T1 (en) | 1987-02-27 | 1988-02-12 | VIBRATING WINDSIFTER FOR THE DENSITY-DEPENDENT SEPARATION OF HETEROGENOUS BULK GOODS. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8712428A IT1208249B (en) | 1987-02-27 | 1987-02-27 | VIBRATING TRICA PNEUMODENSIME TABLE SEPARATOR FOR THE SELECTION OF HETEROGENEOUS BULK PRODUCTS |
IT1242887 | 1987-02-27 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0280127A2 true EP0280127A2 (en) | 1988-08-31 |
EP0280127A3 EP0280127A3 (en) | 1989-06-07 |
EP0280127B1 EP0280127B1 (en) | 1991-07-31 |
Family
ID=11140041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88102053A Expired - Lifetime EP0280127B1 (en) | 1987-02-27 | 1988-02-12 | Pneumodensitometric vibrating separator for sorting of heterogeneous bulk products |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0280127B1 (en) |
AT (1) | ATE65719T1 (en) |
DE (1) | DE3863938D1 (en) |
ES (1) | ES2024561B3 (en) |
IT (1) | IT1208249B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0850691A1 (en) * | 1996-12-23 | 1998-07-01 | HERHOF UMWELTTECHNIK GmbH | Method and device for waste treatment |
CZ307269B6 (en) * | 2008-04-16 | 2018-05-09 | Psp Engineering A. S. | A sorting machine for loose materials |
CN112619896A (en) * | 2020-11-27 | 2021-04-09 | 江苏宇星工贸有限公司 | Iron removing system for screening ferric oxide slurry |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022112657A1 (en) | 2020-11-26 | 2022-06-02 | Magsort Oy | Separation of stainless steel slag |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0081072A2 (en) * | 1981-12-09 | 1983-06-15 | Carl Schenck Ag | Vibrating trough with fluidising means for separating bulk material with different densities into fractions with essentially the same density |
EP0159050A1 (en) * | 1981-02-23 | 1985-10-23 | Bühler AG | Separating apparatus for cereals |
EP0162014A1 (en) * | 1984-05-08 | 1985-11-21 | Bühler AG | Device and method for separating granular goods |
DE3606238A1 (en) * | 1985-03-11 | 1986-09-11 | General Kinematics Corp., Barrington, Ill. | VIBRATION CUTTER |
EP0247423A2 (en) * | 1986-05-20 | 1987-12-02 | Organ-Faser Technology Company N.V. | Method and device for separating a heterogenous mixture of solid materials into fractions |
-
1987
- 1987-02-27 IT IT8712428A patent/IT1208249B/en active
-
1988
- 1988-02-12 ES ES88102053T patent/ES2024561B3/en not_active Expired - Lifetime
- 1988-02-12 EP EP88102053A patent/EP0280127B1/en not_active Expired - Lifetime
- 1988-02-12 AT AT88102053T patent/ATE65719T1/en not_active IP Right Cessation
- 1988-02-12 DE DE8888102053T patent/DE3863938D1/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0159050A1 (en) * | 1981-02-23 | 1985-10-23 | Bühler AG | Separating apparatus for cereals |
EP0081072A2 (en) * | 1981-12-09 | 1983-06-15 | Carl Schenck Ag | Vibrating trough with fluidising means for separating bulk material with different densities into fractions with essentially the same density |
EP0162014A1 (en) * | 1984-05-08 | 1985-11-21 | Bühler AG | Device and method for separating granular goods |
DE3606238A1 (en) * | 1985-03-11 | 1986-09-11 | General Kinematics Corp., Barrington, Ill. | VIBRATION CUTTER |
EP0247423A2 (en) * | 1986-05-20 | 1987-12-02 | Organ-Faser Technology Company N.V. | Method and device for separating a heterogenous mixture of solid materials into fractions |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0850691A1 (en) * | 1996-12-23 | 1998-07-01 | HERHOF UMWELTTECHNIK GmbH | Method and device for waste treatment |
CZ307269B6 (en) * | 2008-04-16 | 2018-05-09 | Psp Engineering A. S. | A sorting machine for loose materials |
CN112619896A (en) * | 2020-11-27 | 2021-04-09 | 江苏宇星工贸有限公司 | Iron removing system for screening ferric oxide slurry |
Also Published As
Publication number | Publication date |
---|---|
ATE65719T1 (en) | 1991-08-15 |
EP0280127B1 (en) | 1991-07-31 |
ES2024561B3 (en) | 1992-03-01 |
IT8712428A0 (en) | 1987-02-27 |
DE3863938D1 (en) | 1991-09-05 |
EP0280127A3 (en) | 1989-06-07 |
IT1208249B (en) | 1989-06-12 |
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