EP0358632A2 - Dispositif de tamisage - Google Patents
Dispositif de tamisage Download PDFInfo
- Publication number
- EP0358632A2 EP0358632A2 EP89890229A EP89890229A EP0358632A2 EP 0358632 A2 EP0358632 A2 EP 0358632A2 EP 89890229 A EP89890229 A EP 89890229A EP 89890229 A EP89890229 A EP 89890229A EP 0358632 A2 EP0358632 A2 EP 0358632A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- systems
- eccentric shaft
- distance
- screening device
- another
- 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
Links
Images
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
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- 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
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/48—Stretching devices for screens
- B07B1/485—Devices for alternately stretching and sagging screening surfaces
Definitions
- the invention relates to a sieve device with at least two frame systems which can be moved relative to one another, with grate bars assigned to each system, which engage in pairs and are connected by flexible sieve elements which are attached to them and bridge the distance between the bars and which are connected by means of an exclusively to the two systems stored and caused by a drive in rotation eccentric shaft relative movement of the two systems can be tensioned and relaxed.
- a vibrating sieve has become known in which a box containing at least one sieve bottom and elastically supported at its ends in the area of one of its oscillation centers with a vibrator in the form of a shaft arranged in the longitudinal median plane of the box and provided with an unbalance connected is.
- the invention aims to provide a screening device which is simple in construction, inexpensive to operate and has a long service life. Above all, however, it should perform well. According to the invention this is achieved in a screening device of the type mentioned in that the eccentric shaft is arranged at one end of the two systems and this at the other end or at a distance therefrom by means of an element which ensures a substantially linear relative movement of the two systems to one another, such as handlebars , Pushing rubber blocks and the like, are connected to one another.
- the handlebar or handlebar-like connection ensures that the systems initially perform circular vibrations which gradually take the form of ellipses and in the area of the handlebars take the form of a flat circular arc or a straight line.
- the desired decrease in the vibration effect is achieved in the design according to the invention without further assistance. This also results in the avoidance of unnecessary drive energy, so that a high level of efficiency is achieved.
- the frame systems on the screen material discharge side again describe elliptical vibrations, which may be desirable for certain screen material.
- the links or the like are arranged in the region of the acceleration pole of the vibration system.
- the distance between the eccentric shaft and the handlebars or the like can be about 60-80% of the screen length.
- the screening device has a first frame system 1, which is supported by spring elements 2 on the foundation or machine frame, not shown.
- An eccentric shaft 3 is by means of the bearings 4 in the frame system 1 and their Eccentric 5 guided in bearings 6, which are connected to the second frame system 7.
- the frame system 7 is connected to grate bars 8 which pass through an opening 9 in the frame system 1 and are screwed to the web of the frame 7.
- the opening 9 is covered on the inside by means of a disk 10 which moves with the system 7.
- the frame 1 is also screwed to the grate bars 11, the grate bars 8 and 11 alternating.
- the two systems 1 and 7 are connected to one another by means of spring links 12. Due to the vibration of the two systems to one another caused by the eccentric shaft, the screen elements 13 are alternately tensioned and relaxed between the grate bars 8 and 11. The mutual relative movement in the longitudinal direction of the screen elements 13 is 2e if e is the measure of the eccentricity of the shaft 3.
- the extent of the oscillating movement of the system 1 in the region of the eccentric shaft can be influenced favorably. For example, can be achieved that the system vibrates almost exclusively parallel to the screen surface, the amplitude being sufficient for self-cleaning of the system 1.
- the invention can have yet another embodiment, the physical basis of which is explained with reference to FIG. 4.
- 4 shows a body K whose center of gravity is P o .
- the force F acts, whereby the body K is given a tangential acceleration a t and an angular acceleration ⁇ around the center of gravity P o .
- the normal acceleration of the mass points increases with the distance from the center of gravity P o and is perpendicular to the connecting line center of gravity P o - mass point.
- the mass points which lie in a plane E perpendicular to the force F and passing through the center of gravity P o , it is parallel to the tangential acceleration a t .
- the normal acceleration is rectified and to the right of it the tangential acceleration.
- the handlebars 12 or the like are arranged in the region of the acceleration pole, restoring forces acting damping on the drive are eliminated, as a result of which the required drive power is reduced.
- the system From the feed side of the screen to the acceleration pole, the system has an accelerating effect on the screened material. From the acceleration pole to the end of the sieve there is an increasing delay of the material to be sieved, so that there is a longer dwell time on the sieve for the sieving of the boundary grains and thus a better sieving in this grain size range.
- the mass of the material to be sieved on the sieve can also be taken into account in the determination of the acceleration pole by including the mass of the material to be sieved in the calculation of the moment of inertia around the common center of gravity.
Landscapes
- Combined Means For Separation Of Solids (AREA)
- Transmission Devices (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT2178/88 | 1988-09-05 | ||
AT0217888A AT390898B (de) | 1988-09-05 | 1988-09-05 | Siebvorrichtung |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0358632A2 true EP0358632A2 (fr) | 1990-03-14 |
EP0358632A3 EP0358632A3 (fr) | 1991-01-02 |
EP0358632B1 EP0358632B1 (fr) | 1993-04-21 |
Family
ID=3529383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89890229A Expired - Lifetime EP0358632B1 (fr) | 1988-09-05 | 1989-09-04 | Dispositif de tamisage |
Country Status (9)
Country | Link |
---|---|
US (1) | US5051170A (fr) |
EP (1) | EP0358632B1 (fr) |
AT (1) | AT390898B (fr) |
CA (1) | CA1327957C (fr) |
CS (1) | CS277461B6 (fr) |
DE (1) | DE58904135D1 (fr) |
ES (1) | ES2040504T3 (fr) |
FI (1) | FI91488C (fr) |
HU (1) | HU206465B (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT5816U3 (de) * | 2002-09-19 | 2003-05-26 | Binder Co Ag | Siebvorrichtung |
AT411336B (de) * | 2002-01-30 | 2003-12-29 | Peytec Aschauer & Peyfuss Oeg | Schwingvorrichtung |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT175U1 (de) * | 1994-05-20 | 1995-04-25 | Eduard Mannsberger Ges M B H I | Schwing- bzw. ruettelsiebanordnung |
US6000554A (en) * | 1996-05-13 | 1999-12-14 | Comcorp, Inc. | Reciprocating screening conveyor |
US7344032B2 (en) * | 2004-06-14 | 2008-03-18 | Action Equipment Company, Inc. | Flexible sieve mat screening apparatus |
US7654394B2 (en) * | 2004-06-14 | 2010-02-02 | Action Equipment Company, Inc. | Flexible mat screening or conveying apparatus |
US8757392B2 (en) | 2011-11-23 | 2014-06-24 | Action Vibratory Equipment, Inc. | Flexible mat screening apparatus with offset supports |
CN104624488B (zh) * | 2015-02-02 | 2016-01-20 | 江苏鹏飞集团股份有限公司 | 直线弛张筛 |
CN107537767B (zh) * | 2017-09-19 | 2023-09-15 | 安徽理工大学 | 两自由度摆动筛 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1206372B (de) | 1964-09-26 | 1965-12-09 | Albert Wehner | Siebrost |
DE3214943A1 (de) | 1982-04-22 | 1983-10-27 | Naučno-issledovatel'skij i proektnyj institut po obogaščeniju i aglomeracii rud černych metallov "Mechanobrčermet", Krivoj Rog | Vibrationssieb |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1204920B (de) * | 1963-01-05 | 1965-11-11 | Albert Wehner | Sieb- oder Foerdermaschine |
DE2158128C3 (de) * | 1971-11-24 | 1980-06-04 | Hein, Lehmann Ag, 4000 Duesseldorf | Siebvorrichtung |
DE2209721A1 (de) * | 1972-03-01 | 1973-09-13 | Albert Wehner | Vorrichtung zum sieben, sichten, filtern o.dgl |
DE2220070A1 (de) * | 1972-04-24 | 1973-11-08 | Albert Wehner | Sieb-, sicht-, filter- oder waschmaschine |
US4064051A (en) * | 1972-06-02 | 1977-12-20 | Hein, Lehmann Akt. | Elastic transporting, sieving or filtering base with swinging drive |
US4188288A (en) * | 1972-11-30 | 1980-02-12 | Hein, Lehmann Ag | Screen with tubular frame systems coupled for rectilinear motion |
DE3221344C1 (de) * | 1982-06-05 | 1983-10-27 | Hein, Lehmann AG, 4000 Düsseldorf | Siebmaschine |
DE3524895C1 (de) * | 1985-07-12 | 1986-12-18 | Hein, Lehmann AG, 4000 Düsseldorf | Siebmaschine |
DE8816250U1 (de) * | 1988-01-14 | 1989-03-02 | Hein, Lehmann AG, 4000 Düsseldorf | Spannwell-Siebmaschine |
-
1988
- 1988-09-05 AT AT0217888A patent/AT390898B/de not_active IP Right Cessation
-
1989
- 1989-08-31 FI FI894093A patent/FI91488C/fi active IP Right Grant
- 1989-09-04 DE DE8989890229T patent/DE58904135D1/de not_active Expired - Lifetime
- 1989-09-04 EP EP89890229A patent/EP0358632B1/fr not_active Expired - Lifetime
- 1989-09-04 CS CS895107A patent/CS277461B6/cs not_active IP Right Cessation
- 1989-09-04 ES ES198989890229T patent/ES2040504T3/es not_active Expired - Lifetime
- 1989-09-05 US US07/403,998 patent/US5051170A/en not_active Expired - Lifetime
- 1989-09-05 CA CA000610284A patent/CA1327957C/fr not_active Expired - Lifetime
- 1989-09-05 HU HU894568A patent/HU206465B/hu not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1206372B (de) | 1964-09-26 | 1965-12-09 | Albert Wehner | Siebrost |
DE3214943A1 (de) | 1982-04-22 | 1983-10-27 | Naučno-issledovatel'skij i proektnyj institut po obogaščeniju i aglomeracii rud černych metallov "Mechanobrčermet", Krivoj Rog | Vibrationssieb |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT411336B (de) * | 2002-01-30 | 2003-12-29 | Peytec Aschauer & Peyfuss Oeg | Schwingvorrichtung |
AT5816U3 (de) * | 2002-09-19 | 2003-05-26 | Binder Co Ag | Siebvorrichtung |
Also Published As
Publication number | Publication date |
---|---|
FI894093A0 (fi) | 1989-08-31 |
HU206465B (en) | 1992-11-30 |
HUT54928A (en) | 1991-04-29 |
US5051170A (en) | 1991-09-24 |
DE58904135D1 (de) | 1993-05-27 |
ES2040504T3 (es) | 1993-10-16 |
CS510789A3 (en) | 1992-10-14 |
FI91488B (fi) | 1994-03-31 |
EP0358632B1 (fr) | 1993-04-21 |
FI894093A (fi) | 1990-03-06 |
ATA217888A (de) | 1990-01-15 |
AT390898B (de) | 1990-07-10 |
EP0358632A3 (fr) | 1991-01-02 |
CS277461B6 (en) | 1993-03-17 |
CA1327957C (fr) | 1994-03-22 |
FI91488C (fi) | 1994-07-11 |
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