WO2005092522A1 - Schwingsiebmaschine und verfahren zum betrieb einer schwingsiebmaschine - Google Patents
Schwingsiebmaschine und verfahren zum betrieb einer schwingsiebmaschine Download PDFInfo
- Publication number
- WO2005092522A1 WO2005092522A1 PCT/CH2004/000186 CH2004000186W WO2005092522A1 WO 2005092522 A1 WO2005092522 A1 WO 2005092522A1 CH 2004000186 W CH2004000186 W CH 2004000186W WO 2005092522 A1 WO2005092522 A1 WO 2005092522A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- imbalance
- unbalance
- excitation
- machine
- exciters
- Prior art date
Links
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
Definitions
- the invention relates to a vibrating screening machine, a system with the vibrating screening machine, a use of the vibrating screening machine or the system and a method for operating a vibrating screening machine according to the preambles of the independent claims.
- Vibration screening machines are used in the construction industry to classify grit or gravel according to the principle of "throwing screening".
- the vibration screening machine is designed with respect to the screening surface and screening excitation in such a way that it provides optimal results with regard to the screening performance for a particular feed material that is primarily used If the composition (recipe) of the feed material changes, the plant capacity can decrease significantly and the sieving results will be less than optimal. This is a problem especially with hot vibrating sieves in asphalt plants, because different grit depends on the desired asphalt quality -Recipes are to be processed and short-term conversion work on the screening machine due to their arrangement directly above the hot mineral silo are excluded.
- a first aspect of the invention relates to a vibrating screening machine with a single or with several unbalance exciters (exciter shafts), preferably with two self-synchronizing imbalance exciters.
- the excitation force, the excitation frequency and / or the excitation angle can be set during operation of the machine, preferably independently of one another.
- the excitation angle is understood to mean the angle of inclination between the direction of excitation force and the separating surface (screen covering).
- This parameter does not exist in purely circular excitation vibrating screening machines.
- Such a vibrating screening machine can also be designed as an "intelligent", self-optimizing vibrating screening machine by the machine automatically varying one or more of the aforementioned parameters during operation, determining their influence on the screening result and thus determining an optimal parameter constellation for the respective feed material. It is preferred that the excitation force, the excitation frequency and / or the excitation direction are infinitely adjustable so that a particularly sensitive control intervention is possible. In a preferred embodiment of the
- Vibrating screening machine has at least one unbalance exciter with two unbalance weights with a common axis of rotation, the angle of rotation of which relative to one another can be changed during operation of the machine.
- the unbalance of the unbalance exciter and thus also the excitation force can preferably be set between zero (both unbalanced weights lie exactly opposite one another) and a maximum value (both unbalanced weights are arranged at the same initial position).
- the rotational moment of inertia remains unchanged when the unbalance is changed.
- this has at least one unbalance exciter with an unbalance weight, the center of gravity of which can be changed during operation of the machine to adjust the unbalance and thus the excitation force, and preferably between zero (the center of gravity of the unbalance weight also falls the axis of rotation together) and a maximum value (maximum possible distance between the axis of rotation and the center of gravity of the unbalance weight).
- the vibrating screening machine has at least two imbalance exciter arrangements or units, each with at least two imbalance exciters, the excitation angle at least one, preferably all imbalance exciter arrangements being changeable to enable adjustment of the resulting total excitation force generated jointly by them.
- the excitation angle of the at least one imbalance exciter arrangement can be changed by changing the phase positions of the imbalance exciters of this imbalance exciter arrangement relative to one another and / or by changing the position of at least one of the imbalance exciters relative to the machine body. It is also preferred if the
- Vibrating sieve machine has several, preferably exactly two, unbalance exciter arrangements, each with exactly two unbalance exciter, the two unbalance exciters of a first imbalance exciter arrangement being synchronized or synchronizable for synchronous rotation in a common first direction of rotation and the two unbalance exciters of a second imbalance exciter arrangement for synchronous rotation second direction of rotation opposite to the first direction of rotation can be synchronized or synchronized.
- the imbalance exciters of the first imbalance exciter arrangement and the second imbalance exciter arrangement are synchronized or can be synchronized with one another.
- phase position of the two imbalance exciters of the first imbalance exciter arrangement can be changed relative to one another and the phase position of the two imbalance exciters of the second imbalance excitation arrangement can be changed relative to one another, in order to change the respective excitation angle of the first and the second imbalance excitation arrangement and thus to enable adjustment of the two imbalance excitation arrangements together generated resulting total excitement.
- Vibrating screening machines of this type in which the change in excitation force is achieved by shifting the phase position of several unbalance exciters relative to one another, have the advantage that simple and inexpensive unbalance exciters can be used and that there is no change in the rotational moments of inertia when the excitation force is set, which is preferred is.
- the vibrating screening machine has at least one unbalance exciter with an unbalance weight, the weight of which can be changed during operation of the machine to adjust the unbalance and thus the excitation force, it being preferred if the unbalance weight is a container, to which a liquid during operation can be supplied and / or removed from this.
- a bladder storage container for example, which is connected to a liquid supply and is more or less filled with liquid as a function of its pressure is suitable as such a container. In this way, the unbalance can be easily adjusted via the liquid pressure.
- the vibrating screening machine has at least two unbalance exciters, the phase relationship of which can be changed with respect to one another during operation of the machine in order to set the excitation angle. How the synchronization and the phase shifting of the unbalance exciters can be realized is known to the person skilled in the field of drive technology and is therefore not described in detail here. However, it should be mentioned that both mechanical and electrical positive couplings of the unbalance exciters are provided.
- the vibrating sieve machine has at least two unbalance exciters
- the position of at least one of the unbalance exciters, and in particular all unbalance exciters can be changed in relation to the machine body during operation, in order to adjust the excitation angle of the entire exciter arrangement and thus the throwing distance of the screen deck in combination with the excitation force or the vibration amplitude. This is particularly advantageous for two self-synchronizing unbalance exciters.
- the vibrating screening machine is preferably equipped with a machine control, in which the excitation frequency, the excitation force or imbalance, the excitation angle and / or the application quantity per unit of time are stored for different input materials and can be called up again at a later time for the operation of the vibrating screening machine with such a feed material and with which the vibrating screening machine can preferably be automatically set for operation with the stored values.
- a machine control in which the excitation frequency, the excitation force or imbalance, the excitation angle and / or the application quantity per unit of time are stored for different input materials and can be called up again at a later time for the operation of the vibrating screening machine with such a feed material and with which the vibrating screening machine can preferably be automatically set for operation with the stored values.
- the vibrating screening machine has measurement technology for automatically measuring and evaluating the vibrations of at least one screening deck, preferably all screening decks, and / or the machine body of the vibrating screening machine, and its control system is also designed such that an automatic one depending on the evaluation results Control intervention can take place with respect to the excitation frequency, the excitation force, the excitation angle and / or the application quantity.
- suitable evaluation algorithms can be used to identify an overload of the screen deck with "carpet formation" and suitable control interventions can be carried out automatically, for example the vibration amplitude can be increased by increasing the excitation force or the feed quantity can be reduced.
- the invention relates to a system with a vibrating sieve machine according to the first aspect of the invention.
- the system of the vibratory sieve machine has sieve material silos connected downstream and measurement technology with which fill levels in at least two of the sieve material silos, preferably in all silos, or the mass or volume flows of those in the.”
- Incoming silo flows can be automatically measured and evaluated.
- the machine control system is designed in such a way that, depending on the evaluation results, an automatic control intervention Regarding the excitation frequency, the excitation force, the excitation angle and / or the amount of feed per unit time.
- a third aspect of the invention relates to
- a fourth aspect of the invention relates to a method for operating a vibrating screening machine with one or more unbalance exciters, and preferably for operating a vibrating screening machine according to the first aspect of the invention or a system according to the second aspect of the invention.
- the excitation force, the excitation frequency and / or the excitation angle is set during the operation of the machine, which is preferably done independently of one another. This results in the advantageous effects already set out in the first aspect.
- the excitation force is preferably set by changing the unbalance of at least one unbalance exciter, which is done by changing the angular position of two unbalance weights with a common axis of rotation, by changing the center of gravity of an unbalance weight from its axis of rotation and / or by feeding or discharging from rivers liquid to a container rotating about an axis of rotation or away from it. It is also preferred to set the excitation force in vibrating screening machines with at least two imbalance exciter arrangements, each with at least two imbalance exciters (exciter shafts), by changing the excitation angle of one or more imbalance exciter arrangements and thereby changing the resulting total excitation force generated jointly by these imbalance exciter arrangements. This happens with advantage that the
- the phase position of the unbalance exciter relative to at least one unbalance exciter arrangement is changed and / or by changing the position of at least one of the unbalance exciters relative to the machine body.
- Vibration screening machines with two imbalance exciter arrangements, each with two imbalance exciters (ie with four excitation shafts) are preferably operated in such a way that the two imbalance exciters of the first imbalance exciter arrangement are rotated synchronously with one another in a common first direction of rotation and the two imbalance exciters of the second imbalance exciter arrangement are synchronized with one another in a common second , the first direction of rotation are rotated in the opposite direction of rotation, the imbalance exciters of the first imbalance exciter arrangement being rotated synchronously with the imbalance exciters of the second imbalance exciter arrangement and the phase position of the two imbalance exciters of the first imbalance excitation arrangement relative to one another and the phase position of the two imbalance exciter arrangements of the second imbalance excitation arrangement relative to one another Change the excitation angle of the two
- vibrating screening machines of this type have the advantage that the unbalance exciters have a simple and inexpensive construction without can have mechanical weight adjustment and the rotational moments of inertia remain constant when adjusting the excitation force.
- the position of at least one of the imbalance exciters, preferably of all imbalance exciters, relative to the machine body and thus relative to the screen decks is changed in a vibrating screening machine with at least two preferably self-synchronizing imbalance exciters for setting the excitation angle during operation. In this way, the “throwing distance” of the screening decks of the vibrating screening machine can be set in a targeted manner.
- suitable sizes for the excitation frequency, the excitation force, the excitation angle and / or the application quantity per unit of time are stored in a machine control at a later point in time called up for the operation of the vibrating screening machine with such a material and the vibrating screening machine is preferably set automatically via the machine control for operation with these sizes. In this way, a quick and optimal setting of the vibrating screening machine is possible for each feed material.
- the vibrations of at least one screen deck, the vibrations of the machine body of the vibrating screening machine, the change in the fill levels of at least two of the vibrating screening machine are connected downstream n and various sieve decks and / or the respective sieve material flows into the silos are determined and evaluated and, depending on the evaluation results, the excitation force, the excitation frequency, the excitation angle and / or the feed quantity per unit of time are set.
- the vibrating screening machine can be used using suitable evaluation algorithms. rithms in a control loop are operated fully automatically and self-optimizing, which is preferred.
- a vibrating sieve machine with at least one unbalance exciter with adjustable unbalance is started up in such a way that the unbalance exciter is first brought to a certain rotational frequency without unbalance or with a less than the unbalance intended for operation, and then the unbalance is increased , the rotational frequency preferably being increased further to the desired operating rotational frequency.
- the unbalance exciter is first brought to a certain rotational frequency without unbalance or with a less than the unbalance intended for operation, and then the unbalance is increased , the rotational frequency preferably being increased further to the desired operating rotational frequency.
- the total excitation force of which is adjustable, for example by changing the excitation angle of the individual imbalance excitation arrangements, it is preferred to effect the above-described start-up and shutdown processes by appropriate adjustment of the total excitation force.
- FIG. 1 shows a schematic representation of a system according to the invention with a first vibrating screening machine according to the invention
- Fig. 2 shows a vertical section in the longitudinal direction through a second vibrating screening machine according to the invention.
- FIG. 1 shows a preferred embodiment of a system 1 according to the invention for classifying hot grit material for asphalt production, comprising a computer-aided machine control 2, a vibrating screening machine 3 according to the invention, two screenings silos 6a, 6b and a feed station 7 for feeding with the Vibrating sieve machine 3 for sieving feed material.
- the vibrating screening machine 3 has three screening decks 4a, 4b, 4c made of wire mesh of different mesh sizes and is excited by a single imbalance exciter 5.
- the unbalance exciter 5 (exciter shaft) has two imbalance weights 8a, 8b with a common axis of rotation, the angular position of which, via a hydraulically actuated adjusting mechanism arranged in the exciter shaft, is infinitely variable between a neutral position (weights lie opposite one another) and a maximum unbalance position ( Weights are arranged in an identical circumferential position) can be changed to adjust the unbalance.
- the drive motor of the unbalance exciter 5a is infinitely variable in speed, so that in conjunction with the adjustability of the unbalance, the excitation frequency and the excitation force and, as a result, the oscillation frequency and the oscillation amplitude of the screen decks 4a, 4b, 4c can be set continuously and independently of one another.
- the screenings silos 6a, 6b are equipped in the area of their inlets with cameras 9a, 9b, which are connected to the controller 2 (see dashed lines) and together with this serve to determine the screenings flows entering the silos 6a, ⁇ b.
- the silos are equipped with load cells 13, which are also connected to the control 2 (dashed lines) and together with this serve to determine the silo fill levels.
- each sieve deck 4a, 4b, 4c of the same vibration sensors 10 are also connected to the control 2 (dashed lines) and together with this the determination and evaluation of the vibrations of the individual sieve decks 4a, 4b, 4c and serve the machine body.
- the control system can identify any system malfunction or suboptimal operation and, if necessary, automatically make suitable corrections to the feed quantity, the excitation frequency and / or the excitation force within a control loop (see dashed lines to feed station 7 and unbalance exciter 8).
- FIG. 2 shows a vertical section in the longitudinal direction through the machine body of a second vibrating screening machine 3 according to the invention with a large number of screen decks 4.
- an imbalance exciter arrangement 11 Arranged on the machine body is an imbalance exciter arrangement 11 with two self-synchronizing imbalance exciters 5a, 5b which, like the imbalance exciter 1, are each equipped with speed-controlled drives and unbalance weights 8a, 8b which are adjustable relative to one another with respect to their angle of rotation position.
- the entire exciter arrangement 11 can be pivoted about a pivot point D with the aid of two double-acting hydraulic cylinders 12 with respect to the machine body which supports the screen decks 4, so that the excitation angle of the exciter unit 11 with respect to the screen decks 4 can be adjusted continuously. Together with the stepless adjustability of the unbalance exciter speed and the unbalance, this results in a vibrating screening machine 3 in which the excitation force, the excitation frequency and the excitation angle and thus also the oscillation frequency, oscillation amplitude and throwing distance can be set continuously and independently in a wide range.
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- Combined Means For Separation Of Solids (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2004800425788A CN100534635C (zh) | 2004-03-26 | 2004-03-26 | 振动筛选机及振动筛选机的操作方法 |
DE502004006001T DE502004006001D1 (de) | 2004-03-26 | 2004-03-26 | Schwingsiebmaschine und verfahren zum betrieb einer schwingsiebmaschine |
PCT/CH2004/000186 WO2005092522A1 (de) | 2004-03-26 | 2004-03-26 | Schwingsiebmaschine und verfahren zum betrieb einer schwingsiebmaschine |
EP04723490A EP1740319B1 (de) | 2004-03-26 | 2004-03-26 | Schwingsiebmaschine und verfahren zum betrieb einer schwingsiebmaschine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CH2004/000186 WO2005092522A1 (de) | 2004-03-26 | 2004-03-26 | Schwingsiebmaschine und verfahren zum betrieb einer schwingsiebmaschine |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005092522A1 true WO2005092522A1 (de) | 2005-10-06 |
Family
ID=34957108
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH2004/000186 WO2005092522A1 (de) | 2004-03-26 | 2004-03-26 | Schwingsiebmaschine und verfahren zum betrieb einer schwingsiebmaschine |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1740319B1 (de) |
CN (1) | CN100534635C (de) |
DE (1) | DE502004006001D1 (de) |
WO (1) | WO2005092522A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112326167A (zh) * | 2020-10-22 | 2021-02-05 | 中国地质科学院水文地质环境地质研究所 | 一种筛分机筛分力度实时检测分析*** |
WO2021058387A1 (de) * | 2019-09-27 | 2021-04-01 | Thyssenkrupp Industrial Solutions Ag | Verfahren und vorrichtung zum ansteuern und regeln einer siebvorrichtung sowie verwendung |
EP3875173A1 (de) * | 2020-03-04 | 2021-09-08 | Bühler AG | Futter- oder nahrungsmittelmühle |
CN114573164A (zh) * | 2022-03-02 | 2022-06-03 | 纪国柱 | 一种用于处理有机小分子的废水催化反应装置 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103128050A (zh) * | 2013-03-15 | 2013-06-05 | 东兴市怡诚食品开发有限公司 | 多级直线筛选机 |
LU100478B1 (de) * | 2017-10-13 | 2019-05-22 | Thyssenkrupp Ag | Siebsystem mit schwingungsknotenangeordneten Schwingungssystemen |
CN109513610A (zh) * | 2018-11-10 | 2019-03-26 | 江苏华升面粉有限公司 | 一种适用于面粉厂的筛糠*** |
CN111017493A (zh) * | 2019-12-06 | 2020-04-17 | 天津伍嘉联创科技发展股份有限公司 | 一种震动式***不良修正机构 |
CN111001565A (zh) * | 2019-12-09 | 2020-04-14 | 苏州嘉诺环境工程有限公司 | 弹跳筛及其筛分控制方法 |
BE1029525B1 (de) * | 2021-06-24 | 2023-01-30 | Thyssenkrupp Ag | Hoch- und Runterfahren einer Siebvorrichtung mit gruppiert angeordneten Unwuchterregereinheit |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3358815A (en) * | 1967-01-09 | 1967-12-19 | Gen Kinematics Corp | Vibratory apparatus |
DE1783063A1 (de) * | 1968-09-26 | 1971-01-28 | Haver & Boecker | Siebmaschine |
US4196637A (en) * | 1975-06-16 | 1980-04-08 | Babbitless | Vibratory device with controlled actuation |
US4409096A (en) * | 1980-07-15 | 1983-10-11 | Coal Industry (Patents) Ltd. | Control systems for material treatment plant |
FR2550471A1 (fr) * | 1983-08-08 | 1985-02-15 | Strasbourg Ste Indle Forges | Vibrateur pour le reglage du dephasage dans un appareil vibrant |
DE19539150A1 (de) * | 1995-10-20 | 1996-03-14 | Willy Laukemann | Vibrationsantrieb für Schwingmaschinen |
DE20008762U1 (de) * | 2000-05-16 | 2000-07-13 | Rheinische Werkzeug & Maschf | Siebmaschine mit Unwuchtmotoren |
US6186333B1 (en) * | 1997-05-06 | 2001-02-13 | Valment Corporation | Method and arrangement for controlling a multi-phase screening apparatus |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2122170U (zh) * | 1990-11-07 | 1992-11-18 | 徐州工程机械制造厂 | 振动振荡压路机 |
CN2163010Y (zh) * | 1993-08-18 | 1994-04-27 | 郝进军 | 一种多层振动筛分筛选机 |
-
2004
- 2004-03-26 EP EP04723490A patent/EP1740319B1/de not_active Expired - Lifetime
- 2004-03-26 WO PCT/CH2004/000186 patent/WO2005092522A1/de active IP Right Grant
- 2004-03-26 CN CNB2004800425788A patent/CN100534635C/zh not_active Expired - Fee Related
- 2004-03-26 DE DE502004006001T patent/DE502004006001D1/de not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3358815A (en) * | 1967-01-09 | 1967-12-19 | Gen Kinematics Corp | Vibratory apparatus |
DE1783063A1 (de) * | 1968-09-26 | 1971-01-28 | Haver & Boecker | Siebmaschine |
US4196637A (en) * | 1975-06-16 | 1980-04-08 | Babbitless | Vibratory device with controlled actuation |
US4409096A (en) * | 1980-07-15 | 1983-10-11 | Coal Industry (Patents) Ltd. | Control systems for material treatment plant |
FR2550471A1 (fr) * | 1983-08-08 | 1985-02-15 | Strasbourg Ste Indle Forges | Vibrateur pour le reglage du dephasage dans un appareil vibrant |
DE19539150A1 (de) * | 1995-10-20 | 1996-03-14 | Willy Laukemann | Vibrationsantrieb für Schwingmaschinen |
US6186333B1 (en) * | 1997-05-06 | 2001-02-13 | Valment Corporation | Method and arrangement for controlling a multi-phase screening apparatus |
DE20008762U1 (de) * | 2000-05-16 | 2000-07-13 | Rheinische Werkzeug & Maschf | Siebmaschine mit Unwuchtmotoren |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021058387A1 (de) * | 2019-09-27 | 2021-04-01 | Thyssenkrupp Industrial Solutions Ag | Verfahren und vorrichtung zum ansteuern und regeln einer siebvorrichtung sowie verwendung |
EP3875173A1 (de) * | 2020-03-04 | 2021-09-08 | Bühler AG | Futter- oder nahrungsmittelmühle |
CN112326167A (zh) * | 2020-10-22 | 2021-02-05 | 中国地质科学院水文地质环境地质研究所 | 一种筛分机筛分力度实时检测分析*** |
CN114573164A (zh) * | 2022-03-02 | 2022-06-03 | 纪国柱 | 一种用于处理有机小分子的废水催化反应装置 |
Also Published As
Publication number | Publication date |
---|---|
CN1925929A (zh) | 2007-03-07 |
EP1740319A1 (de) | 2007-01-10 |
EP1740319B1 (de) | 2008-01-16 |
CN100534635C (zh) | 2009-09-02 |
DE502004006001D1 (de) | 2008-03-06 |
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