CN101884977B - Vibration screening mechanism and early warning device for vibrating screen mesh rupture - Google Patents
Vibration screening mechanism and early warning device for vibrating screen mesh rupture Download PDFInfo
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- CN101884977B CN101884977B CN2010102108135A CN201010210813A CN101884977B CN 101884977 B CN101884977 B CN 101884977B CN 2010102108135 A CN2010102108135 A CN 2010102108135A CN 201010210813 A CN201010210813 A CN 201010210813A CN 101884977 B CN101884977 B CN 101884977B
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Abstract
The invention provides an early warning device (2) for vibrating screen mesh rupture in a vibration screening mechanism (1). The early warning device comprises a supporting part (21), a rotating arm part (22) and a sensor (231), wherein the supporting part (21) is fixed on a discharging conduit (13) of the vibration screening mechanism (1); the rotating arm part (22) is provided with a pivoting part which is pivoted with the supporting part (21), and a first end which is arranged in a flow path of screened materials; and the sensor (231) is arranged on the supporting part (21) or the rotating arm part (22) and is used for sensing the pivoting position of the rotating arm part (22) and triggering an early warning signal. The early warning device realizes the early warning effect on the screen mesh rupture according to the flow rate of screened sand discharged from the discharging conduit, avoids inefficient work of a worker for checking the screen mesh every day, realizes real-time monitoring of the screening effect, can timely early warn when the screen mesh is failed, is convenient for the worker to timely repair and replace the screen mesh, and can more accurately control the proportioning of the mixed raw materials.
Description
Technical field
The present invention relates to vibration screening mechanism, more specifically, relate to the prior-warning device of vibrating screen mesh rupture in a kind of vibration screening mechanism and have the vibration screening mechanism of this prior-warning device.
Background technology
At present, in the use of dry powder mixing plant equipment, need reach the requirement of raw material precise proportioning, need to guarantee the sandstone precise proportioning of different-grain diameter size especially.Thereby in dry powder mixing plant equipment, be provided with vibration screening mechanism.
As shown in Figure 1, vibration screening mechanism 1 of the prior art comprises one or more vibratory sieve 11, elevator 12, one or more material outlet canal 13 and one or more feed bin feed bin 14.Wherein, vibratory sieve 11 is between elevator 12 and feed bin feed bin 14 tops, for being obliquely installed; Material outlet canal 13 is connected the exit of vibratory sieve 11, is obliquely installed; Feed bin is arranged on the below of material outlet canal 13, and its import department is connected to the lower end of material outlet canal 13; Elevator 12 is arranged near the vibratory sieve 11.In screening process; The sand material of being dried is promoted to the porch at vibratory sieve 11 tops through elevator 12, and gets into vibratory sieve 11 thus, through the screening of each layer screen cloth; The sand grains of different-grain diameter size is separated on request, and the material outlet canal 13 through each layer enters into feed bin feed bin 14 respectively.Screen cloth is formed by the metal tape braiding, and the effect that a plurality of screen clothes are set is the sand grains that separating and filtering goes out the different-grain diameter size.
In screening process, the friction between screen cloth and the sandstone is bigger, breaks through regular meeting, belongs to wearing detail.The shortcoming of above-mentioned vibration screening mechanism 1 is: in screening process, whether screen cloth breaks can't be judged from the outside.The workman must climb to feed bin feed bin top every day and open vibratory sieve and observe, if mesh rupture then change.This method of operating workload is big, has increased the danger of workman's operation, and can't learn that screen cloth broke in which period, and is also unknown to the influence of screening precision.
Summary of the invention
A technical problem to be solved by this invention provides a kind of can the monitoring in real time screening effect, according to the prior-warning device of the size of sieving sand flow amount in the material outlet canal of back to vibrating screen mesh rupture in the vibration screening mechanism of the breakage realization warning function of screen cloth.
Another technical problem to be solved by this invention provides a kind of can the monitoring in real time screening effect, the breakage of screen cloth is realized the vibration screening mechanism of warning function according to the size of sand flow amount in the material outlet canal of screening back.
According to an aspect of the present invention, the prior-warning device of vibrating screen mesh rupture in a kind of vibration screening mechanism is provided, has comprised: the support portion is fixed on the material outlet canal of vibration screening mechanism; Rotating arm part has the articulated section that articulates with the support portion, and first end through coming sensing screening mass flow to change in the stream that is arranged at the screening material; Sensor is installed on support portion or the rotating arm part, is used for the pivot position of sensing rotating arm part, and triggers early warning signal.
Further, sensor is arranged on the sensor fastening device on the support portion, and towards the pivot plane of rotating arm part.
Further, rotating arm part also comprises second end that extend along the direction that deviates from first end relative articulated section, and sensor fastening device is in the face of the rotational plane of second end of rotating arm part.
Further, sensor fastening device is provided with the arc groove corresponding to the rotation path of rotating arm part, and the sensor adjustable ground is arranged in the arc groove.
Further, sensor is a photoelectric sensor.
Further, first end of rotating arm part is provided with stressed plate.
Further, stressed plate is set to the motion path perpendicular to first end.
Further; The support portion comprises: first support and second support; Be separately positioned on the both sides of material outlet canal, and comprise the horizontal part that is fixedly connected with material outlet canal respectively and from the end of horizontal part upwardly extending vertical portion, be provided with horizontal arrangement on the vertical top of portion and perpendicular to the pipe box of material outlet canal; First tube connector and second tube connector are installed in respectively in the pipe box of vertical portion of first support and second support; Rotating arm part comprises: intermediate connection tube, its two ends are installed in rotation on respectively in first tube connector and second tube connector, and stem is fixedly connected on the intermediate connection tube, and is vertical with intermediate connection tube.
According to another aspect of the present invention, a kind of vibration screening mechanism is provided, has comprised: one or more vibratory sieves are obliquely installed; One or more material outlet canals are connected the exit of vibratory sieve, are obliquely installed; One or more feed bins, its import department is connected to the lower end of material outlet canal, and wherein, the material outlet canal of this vibration screening mechanism is provided with the prior-warning device of above-mentioned vibrating screen mesh rupture.
The present invention has following beneficial effect:
1. because this prior-warning device has the rotating arm part that can pivot, first end of rotating arm part is set in the stream of screening material, when the screening normal operation; When materials flow was stablized, first end of sand material bump rotating arm part pivoted rotating arm part and departs from an angle in the material outlet canal; When materials flow reduced, the first end power of being hit diminished, and the rotating arm part deviation angle is corresponding to be reduced; When deviation angle is little during to the tolerance angle set, can be set at the sensor sensing in precalculated position, trigger early warning signal; And then reaching the effect of early warning, alert inspection screen cloth this moment breaks.Thereby, reached screening effect monitored in real time.
This prior-warning device has avoided the workman to check the inefficiency work of screen cloth every day according to the effect of the size of sieving mass flow in the material outlet canal of back to the breakage realization early warning of screen cloth, makes that the workman only needs when prior-warning device sends early warning signal, check.Simultaneously, this device has been realized screening effect is monitored in real time, and early warning in time when screen cloth goes wrong is convenient to the workman and is in time overhauled replacing, can more accurately control the stirring proportion of raw materials, improves the quality of products.
2. because sensor fastening device is provided with the arc groove corresponding to the rotation path of rotating arm part, and the sensor adjustable ground is arranged in the arc groove, thereby make that early warning materials flow amount can easy adjustment, can adapt to different output and material source (sand source).Install easyly, be easy to install.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 shows the composition sketch map of vibration screening mechanism of the prior art;
Fig. 2 is the structural representation of vibration screening mechanism that has the prior-warning device of vibrating screen mesh rupture according to an embodiment of the invention;
Fig. 3 be according to an embodiment of the invention in the vibration screening mechanism master of the prior-warning device of vibrating screen mesh rupture look sketch map;
Fig. 4 be according to an embodiment of the invention in the vibration screening mechanism left side of the prior-warning device of vibrating screen mesh rupture look sketch map.
The specific embodiment
Below with reference to accompanying drawing and combine embodiment, specify the present invention.
As shown in Figure 2, be embodiment according to the vibration screening mechanism 1 of the prior-warning device with vibrating screen mesh rupture of the present invention.In the present embodiment, vibration screening mechanism 1 is used to sieve sandstone, can be the screening mechanism of any solid material in practice.Such as in the background technology record, vibration screening mechanism 1 comprises one or more vibratory sieve 11, elevator 12, one or more material outlet canal 13 and one or more feed bin 14.Wherein, vibratory sieve 11 is between elevator 12 and feed bin 14 tops, for being obliquely installed; Material outlet canal 13 is connected the exit of vibratory sieve 11, is obliquely installed; Feed bin 14 is arranged on the below of material outlet canal 13, and its import department is connected to the lower end of material outlet canal 13.
Can see from Fig. 2, be different from shown in Fig. 1 that in the vibration screening mechanism 1 according to present embodiment, material outlet canal 13 is provided with the prior-warning device 2 of vibrating screen mesh rupture.With reference to figure 3, can see that this prior-warning device 2 comprises support portion 21, rotating arm part 22 and sensor 231.
Wherein, support portion 21 is fixed on the material outlet canal 13 of vibration screening mechanism 1 (not shown among Fig. 3), is used for rotating arm part 22 is articulated above that, also can sensor 231 is fixed thereon.Preferably, specifically in the present embodiment, support portion 21 comprises: first support 216, second support 218 and first tube connector 211 and second tube connector 215.First support 216 and second support 218 comprise horizontal part and vertical portion respectively.Two horizontal parts are welded on the both sides of material outlet canal 13 respectively, and two vertical portions are connected to the end of two horizontal parts respectively and vertically extend upward.The top of two vertical portions is respectively arranged with horizontal arrangement and perpendicular to the pipe box of material outlet canal 13.One end cross-under of first tube connector 211 is gone in the pipe box of first support 216, and the end cover of second tube connector 215 inserts in the pipe box of second support 218, and first tube connector 211 and second tube connector 215 other end are separately aimed at each other.
In addition, preferably as shown in Figure 3, the lower end of stem 222 (being first end of rotating arm part 22) is provided with stressed plate, and preferably, this stressed plate inserts in the material outlet canal 13 and rotates to the direction perpendicular to the motion path of stem lower end.Like this, when the situation of material materials flow was identical, the lower end of stem 222 is stressed to be increased greatly, thereby stem 222 can be more delicately pivots with the impulsive force of material materials flow.
When vibration screening mechanism 1 work, the sand grains (material) of different-grain diameter size gets in the feed bin through material outlet canal 13 after the screen cloth screening.When screen cloth did not break, the materials flow of material was stable, the lower end of the material impacting stem 222 in the material outlet canal 13, and just the stressed plate of first end of rotating arm part 22 makes stem 222 pivot and departs from an angle.At this moment the upper end of stem 222, just second end of the rotating arm part 22 identical angle that correspondingly pivots.Sieve normal operation this moment, and above-mentioned deviation angle is bigger, and the angle that second end of rotating arm part 22 is pivoted does not reach to trigger and is installed in the degree of the sensor 231 on the sensor fastening device 232, but is positioned at the below of sensor 231.
After screen cloth broke, the material materials flow in the corresponding material outlet canal 13 reduced, and the suffered impulsive force of stressed plate reduces, thereby the deviation angle of first end of rotating arm part 22 and second end reduces simultaneously.When deviation angle is little during to the tolerance angle set, second end can trigger the sensor 231 on the sensor fastening device 232, and sensor 231 sends signal, reaches the effect of early warning, and alert checks whether corresponding screen cloth breaks.
When the replacing of sand source, when the sandstone ratio changed, the pivoting angle with the preceding rotating arm part of breaking behind the mesh rupture all can change.At this moment, the staff can regulate the position of arc fixed plate upper sensor, thereby changes monitoring point to suitable position, so that sensor can in time monitor breaking of screen cloth.
The present invention not only can be applicable to the concrete batch plant field, also can be applicable in other fields that need sieve material.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. the prior-warning device (2) of vibrating screen mesh rupture in the vibration screening mechanism (1) is characterized in that, comprising:
Support portion (21) is fixed on the material outlet canal (13) of said vibration screening mechanism (1);
Rotating arm part (22) has the articulated section that articulates with said support portion (21), and first end through coming sensing screening mass flow to change in the stream that is arranged at the screening material;
Sensor (231) is installed on said support portion (21) or the said rotating arm part (22), is used for the pivot position of the said rotating arm part of sensing (22), and triggers early warning signal.
2. prior-warning device according to claim 1 (2) is characterized in that, said sensor (231) is arranged on the sensor fastening device (232) on the said support portion (21), and towards the pivot plane of said rotating arm part (22).
3. prior-warning device according to claim 2 (2); It is characterized in that; Said rotating arm part (22) also comprises second end that extend along the direction that deviates from said first end said relatively articulated section, and said sensor fastening device (232) is in the face of the rotational plane of second end of said rotating arm part (22).
4. prior-warning device according to claim 2 (2); It is characterized in that; Said sensor fastening device (232) is provided with the arc groove corresponding to the rotation path of said rotating arm part (22), and said sensor (231) adjustable ground is arranged in the said arc groove.
5. prior-warning device according to claim 1 (2) is characterized in that, said sensor (231) is a photoelectric sensor.
6. prior-warning device according to claim 1 (2) is characterized in that, first end of said rotating arm part (22) is provided with stressed plate.
7. prior-warning device according to claim 6 (2) is characterized in that said stressed plate is set to the motion path perpendicular to said first end.
8. prior-warning device according to claim 4 (2) is characterized in that,
Said support portion (21) comprising:
First support (216) and second support (218); Be separately positioned on the both sides of said material outlet canal (13); And comprise the horizontal part that is fixedly connected with said material outlet canal (13) respectively and upwardly extending vertical portion from the end of said horizontal part; Be provided with horizontal arrangement on the vertical top of portion and perpendicular to the pipe box of said material outlet canal (13)
First tube connector (211) and second tube connector (215) are installed in respectively in the pipe box of vertical portion of said first support (216) and second support (218);
Said rotating arm part (22) comprising:
Intermediate connection tube (221), its two ends are installed in rotation on respectively in said first tube connector (211) and second tube connector (215),
Stem (222) is fixedly connected on the said intermediate connection tube (221), and is vertical with said intermediate connection tube (221).
9. a vibration screening mechanism (1) comprising:
One or more vibratory sieves (11) are obliquely installed;
One or more material outlet canals (13) are connected the exit of said vibratory sieve (11), are obliquely installed;
One or more feed bins (14), its import department is connected to the lower end of said material outlet canal (13),
It is characterized in that said material outlet canal (13) is provided with the prior-warning device (2) of each described vibrating screen mesh rupture in the claim 1 to 8.
Priority Applications (1)
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CN2010102108135A CN101884977B (en) | 2010-06-28 | 2010-06-28 | Vibration screening mechanism and early warning device for vibrating screen mesh rupture |
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CN2010102108135A CN101884977B (en) | 2010-06-28 | 2010-06-28 | Vibration screening mechanism and early warning device for vibrating screen mesh rupture |
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CN101884977B true CN101884977B (en) | 2012-10-31 |
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CN2010102108135A Expired - Fee Related CN101884977B (en) | 2010-06-28 | 2010-06-28 | Vibration screening mechanism and early warning device for vibrating screen mesh rupture |
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Cited By (1)
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CN111366173A (en) * | 2020-03-17 | 2020-07-03 | 熊朝柱 | Method for detecting damage of screen of vibrating screen |
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CN110586475A (en) * | 2019-09-20 | 2019-12-20 | 江苏仕能机械设备有限公司 | Device for automatically detecting large-particle materials in vibrating screen pipeline |
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CN101031368A (en) * | 2004-10-18 | 2007-09-05 | 知嘎萨工业株式会社 | Sieve, sifter, and sieve breakage detector |
CN201291193Y (en) * | 2008-06-27 | 2009-08-19 | 唐山中耐科技有限公司 | Full-automatic electromagnetic high-frequency vibration sieve |
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Patent Citations (5)
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CN1032861A (en) * | 1987-09-15 | 1989-05-10 | 罗斯蒙德公司 | Rocking beam vortex sensor |
CN2589829Y (en) * | 2002-12-29 | 2003-12-03 | 陈青山 | Screen mesh working condition monitoring device |
CN101031368A (en) * | 2004-10-18 | 2007-09-05 | 知嘎萨工业株式会社 | Sieve, sifter, and sieve breakage detector |
WO2006119208A1 (en) * | 2005-05-03 | 2006-11-09 | M-I L.L.C. | Rf shielding gasket for vibratory separator |
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Cited By (1)
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CN111366173A (en) * | 2020-03-17 | 2020-07-03 | 熊朝柱 | Method for detecting damage of screen of vibrating screen |
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