CN104148282B - Vibrosieve and sieve breakage detection device thereof - Google Patents

Abstract

The present invention relates to vibrosieve technical field, disclose a kind of vibrosieve and sieve breakage detection device thereof.This sieve breakage detection device includes the first conveying passage, the second conveying passage, flash passage, filter screen and breakage signal generator, wherein: the feed end of described second conveying passage is communicated in the discharge end of described first conveying passage, the feed end of described flash passage is communicated in described second conveying passage, and described filter screen is arranged in described second conveying passage and is positioned at the downstream of described second conveying passage and the communicating position of described flash passage；Described breakage signal generator is arranged on described flash passage, for the action when described flash passage is in predetermined flash state.After implementing the present invention, when screen cloth occurs damaged, the control system of Field Force or vibrosieve can be learnt in time, and time control vibrosieve is shut down, and so frequently checks screen cloth without plant maintenance personnel, effectively saves time, man power and material's cost.

Description

Vibrosieve and sieve breakage detection device thereof

Technical field

The present invention relates to vibrosieve technical field, particularly to a kind of vibrosieve and sieve breakage detection device thereof.

Background technology

In a lot of occasions, commonly use vibrosieve, such as, when producing dry powder and mortar, usually require that sand material Particle diameter less than predetermined value (such as 5 millimeters), and when producing different types of mortar, for various particle diameters The requirement of sand material accounting the most different, thus, it usually needs by vibrosieve, raw sand is sieved, Again the raw materials such as the sand material of different-grain diameter and cement being carried out accurate proportioning, then mixture manufacturing goes out qualified mortar.

Shown in Figure 1, the most common vibrosieve 100' generally comprises screen box 2', screen cloth 3', takes up Put 5', vibrator (not shown), sieve bottom discharge pipe 8' and defective material discharge nozzle 9' etc., wherein: screen box 2' Being arranged in support means 5', screen cloth 3' is arranged in screen box 2', and screen cloth 3' and screen box 2' is all in tilting shape State, the number of screen cloth 3' can be one layer, it is also possible to is more than two-layer, and situation shown in Fig. 1 is one layer；Sieve The bottom of case 2' is formed with the lower conveying passage 6' of sieve, under the discharging opening 7'(also referred to as sieve of the lower conveying passage 6' of sieve Discharging opening) it is communicated in sieve bottom discharge pipe 8', defective material mouth (also referred to as defective material discharging opening) 10' on the sieve of screen cloth 3' It is communicated in defective material discharge nozzle 9'.

In the course of the work, screen box 2' vibrates under the effect of vibrator, drives screen cloth 3' vibration, sand simultaneously Material enters in screen box from the sand inlet 1' of screen box 2' high level, after the sieve aperture of screen cloth 3' sieves, and coarse sand (its particle diameter is more than screen size), defective material mouth 10' and defective material discharge nozzle 9' from sieve discharged, fine sand (its particle diameter Less than screen size) drop to sieve on lower conveying passage 6', afterwards from sieve lower discharge port 7' and sieve bottom discharge pipe 8' discharges, and the coarse sand of discharge and fine sand can respectively enter next procedure (as coarse sand can be back to breaking ring Joint, fine sand can enter washed-out sand or select powder link), dust collecting system 4' can be collected vibrosieve 100' and is being sieving through The dust produced in journey, prevents from emitting ash.

It is known that the screen cloth within vibrosieve belongs to consumable accessory, screen cloth will damage in use for some time Bad, plant maintenance personnel need often to check screen cloth, and finding to damage needs to change in time, Yi Mianying These those skilled in the art are accustomed to by the screening effect of musical sand material.But, present inventor exists Find during realizing the present invention: in the prior art, plant maintenance personnel are true generally according to subjective experience The fixed screen cloth that whether checks, or check screen cloth once at set intervals, when checking, need first will shake every time Dynamic sieve is shut down, and relends and helps related tool, opens or remove corresponding component and examine adjacent to screen cloth, if Do not find that screen cloth damages, need to reform into original state, to treat inspection next time.

It follows that frequently checking of screen cloth brings bigger workload to plant maintenance personnel, time-consuming take Power；And during checking, need to shut down vibrosieve, reduce the service efficiency of vibrosieve.How to overcome This deficiency, is the direction of present inventor's effort always.

Summary of the invention

In view of this, inventor achieves the present invention, it is desirable to provide a kind of sieve breakage for vibrosieve is examined Survey device, a kind of vibrosieve and another kind of vibrosieve, so as to when breakage does not occurs in screen cloth, meet Vibrosieve normally use needs, and when screen cloth occurs damaged, Field Force or the control of vibrosieve System can be learnt in time, and time control vibrosieve is shut down, and so frequently checks without plant maintenance personnel Screen cloth, effectively saves time, man power and material's cost, improves the service efficiency of vibrosieve.

Specifically, the described sieve breakage for vibrosieve detects device and includes the first conveying passage, second defeated Material passage, flash passage, filter screen and breakage signal generator, wherein: the charging of described second conveying passage End is communicated in the discharge end of described first conveying passage, and the feed end of described flash passage is communicated in described second Conveying passage, described filter screen be arranged in described second conveying passage and be positioned at described second conveying passage with The downstream of the communicating position of described flash passage；Described breakage signal generator is arranged on described flash passage, For the action when described flash passage is in predetermined flash state.

Further, in the first situation, described breakage signal generator is for being arranged at described flash passage The level-sensing device of discharge end；Or, in this case, described breakage signal generator includes baffle plate and breaks Damaging signal output component, described baffle plate is rotationally arranged at the discharge end of described flash passage, described breakage Signal output component is in the action when rotating predetermined angular of described baffle plate.

Further, under described second case, described breakage signal output block is proximity switch, limit Bit switch or baffle angle detection part, described proximity switch, described limit switch or described baffle plate angle Degree detection part is fixed on described flash passage the position of neighbouring described baffle plate.

Further, described baffle plate being further fixedly arranged on ennation, described ennation rotates at described baffle plate The detection range being in described proximity switch or described baffle angle detection part during predetermined angular is interior or tactile Touch described limit switch.

Further, the feed end of described flash passage is provided with in the position of neighbouring described first conveying passage Striker plate.

Further, described second conveying passage includes the first conveying pipeline, the first flexible link and the second conveying Pipe, the feed end of described first conveying pipeline is the feed end of described second conveying passage, described first conveying pipeline Discharge end be communicated in the feed end of described second conveying pipeline by described first flexible link, described flash leads to The feed end in road is communicated in described first conveying pipeline, and described filter screen is arranged in described first conveying pipeline；With/ Or, described flash passage includes the first overflow pipe, the second flexible link and the second overflow pipe, and described first overflows The feed end that feed end is described flash passage of material pipe, the discharge end of described first overflow pipe is by described the Two flexible links are communicated in the feed end of described second overflow pipe, and described breakage signal generator is arranged at described In second overflow pipe.

Specifically, this kind of vibrosieve includes screen box and at least one of which screen cloth being arranged in described screen box, also Device is detected, wherein: the of described sieve breakage detection device including the sieve breakage described in any of the above-described item The feed end of one conveying passage is communicated in the sieve lower discharge port of described screen box, and the filter pore size of described filter screen compares the end The big predetermined value of screen size of layer screen cloth；Or, the first conveying passage of described sieve breakage detection device The defective material discharging opening of wherein one layer of screen cloth that feed end is communicated in addition to top screen, the filter opening chi of described filter screen The big predetermined value of screen size of the very little last layer screen cloth than described wherein one layer of screen cloth

Further, described vibrosieve also includes control unit and/or alarm unit, wherein: described control is single Unit, for when described breakage signal generator action, controls described vibrosieve and shuts down；Described alarm unit is used When in described breakage signal generator action, send alarm signal.

Specifically, described another kind of vibrosieve includes screen box and at least one of which screen cloth being arranged in described screen box, It is characterized in that, also include the first conveying passage, the second conveying passage, flash passage, filter screen and damaged letter Number generator, wherein: the side of described filter screen is connected to the exit side of the sieve bottom discharge passage of described screen box, The opposite side of described filter screen connects filter screen defective material discharging opening, and the feed end of described first conveying passage is correspondingly arranged In the lower section of described filter screen, the discharge end of described first conveying passage is communicated in entering of described second conveying passage Material end, the feed end of described flash passage is communicated in described filter screen defective material discharging opening, and described breakage signal occurs Device is arranged on described flash passage, for the action when described flash passage is in predetermined flash state； The filter pore size predetermined value bigger than the screen size of bottom screen of described filter screen.

Further, state the second conveying passage and include the first conveying pipeline, the first flexible link and the second conveying pipeline, The feed end of described first conveying pipeline is the feed end of described second conveying passage, going out of described first conveying pipeline Material end is communicated in the feed end of described second conveying pipeline by described first flexible link；And/or, described flash Passage includes the first overflow pipe, the second flexible link and the second overflow pipe, the feed end of described first overflow pipe For the feed end of described flash passage, the discharge end of described first overflow pipe is by described second flexible link even Leading in the feed end of described second overflow pipe, described breakage signal generator is arranged in described second overflow pipe.

When a kind of sieve breakage for vibrosieve using the present invention detects device or a kind of vibrosieve, if There is not breakage in certain layer of screen cloth corresponding in vibrosieve, and after the sieve of this layer of screen cloth, sand material is (i.e. from vibrosieve Sieve lower discharge port or this layer of screen cloth lower screen defective material discharging opening output sand material) particle diameter less, Thus (its filter pore size is than the sieve aperture of this layer of screen cloth can be provided with filter screen by the first conveying passage and inside The big predetermined value of size) the second conveying passage discharge, normally use needs with meet vibrosieve, if this layer There is breakage in screen cloth, compared with the sand material of small particle and greater particle size (bigger than filter pore size) by from this damaged layer Screen cloth passes, when these sand streams filter screen in the second conveying passage, because of the filtration of filter screen, relatively The sand material of big particle diameter can build up, when reaching a certain amount of, in sand material general's entrance flash passage of accumulation also Overflow, now, breakage signal generator action, send out the signal characterizing sieve breakage, so on-the-spot The control system of personnel or vibrosieve can learn that breakage occurs in this layer of screen cloth in time, and controls vibration in time Sieve shutdown is overhauled.

When using the another kind of vibrosieve of the present invention, if there is not breakage in the bottom screen of vibrosieve, the end of through After the sieve of layer screen cloth, the particle diameter of sand material is less, thus can be through sieve bottom discharge passage and at its filter pore size of filter screen Predetermined value bigger than the screen size of this layer of screen cloth) filtration after, from the first conveying passage and the second conveying passage Discharge, normally use needs with meet vibrosieve, if there is breakage in bottom screen, relatively small particle and bigger The sand material of particle diameter (bigger than filter pore size) will pass, when these sand streams are through filter screen from damaged bottom screen Time, because of the filtration of filter screen, the sand material of greater particle size can build up formation defective material, is reaching a certain amount of Time, the sand material of accumulation is by entrance flash passage and overflow, now, and breakage signal generator action, outwards Sending the signal characterizing sieve breakage, the control system of such Field Force or vibrosieve can be learnt in time There is breakage in bottom screen, and the shutdown of control vibrosieve is overhauled in time.

From the foregoing, compared with prior art, a kind of sieve breakage for vibrosieve of the present invention detects Device, a kind of vibrosieve or another kind of vibrosieve, all can meet vibration when breakage does not occurs in screen cloth That sieves normally uses needs, and when screen cloth occurs damaged, it is possible to make the control of Field Force or vibrosieve System processed is learnt in time, and time control vibrosieve is shut down and overhauled, so without plant maintenance personnel frequency Numerous inspection screen cloth, effectively saves time, man power and material's cost, improves the service efficiency of vibrosieve.

Accompanying drawing explanation

The accompanying drawing of the part constituting the present invention is used for providing a further understanding of the present invention, and the present invention shows Meaning property embodiment and explanation thereof are used for explaining the present invention, are not intended that inappropriate limitation of the present invention.At accompanying drawing In:

Fig. 1 is the structural representation of existing a kind of vibrosieve；

A kind of vibrosieve and a kind of sieve breakage that Fig. 2 provides for the embodiment of the present invention detect device vibrosieve Structural representation；

Fig. 3 is the enlarged diagram of I part in the detection device of sieve breakage shown in Fig. 2；

Fig. 4 is that sieve breakage shown in Fig. 2 detects the device structural representation when flash state；

The structural representation of a kind of vibrosieve that Fig. 5 provides for another embodiment of the present invention.

Parts numbers explanation in figure:

100 vibrosieves

1 sand inlet

2 screen boxs

3 screen clothes

4 sieve bottom discharge passages

5 first conveying passages

6 screen cloth defective material tapping channels

7 second conveying passages

8 filter screens

9 flash passages

10 striker plates

11 baffle plates

12 rotating shafts

13 ennations

14 proximity switches

15 fix bar

17 fine sands

18 coarse sands

20 level-sensing devices

Detailed description of the invention

It should be pointed out that, in this part to the description of concrete structure and description order it is only saying specific embodiment Bright, it is not construed as that protection scope of the present invention is had any restriction effect.Additionally, when not conflicting, Embodiment in this part and the feature in embodiment can be mutually combined.

Refer to accompanying drawing, below in conjunction with accompanying drawing, various embodiments of the invention are elaborated.Arrow in figure Head direction represents material or the flow direction of sand material.

Fig. 2 shows a kind of vibrosieve of the embodiment of the present invention, also show the one of the embodiment of the present invention Sieve breakage detection device.The vibrosieve 100 of the embodiment of the present invention can include screen box 2, be arranged at screen box 2 In screen cloth 3 and the sieve breakage detection device of the embodiment of the present invention, break except screen cloth about vibrosieve 100 Damage the detailed construction outside detection device or description, may refer to the related content of prior art, at this no longer Launch.

Shown in Fig. 3 and Fig. 4, the sieve breakage detection device of the embodiment of the present invention can include that first is defeated Material passage the 5, second conveying passage 7, flash passage 9, filter screen 8 and breakage signal generator.

Wherein, the feed end of the second conveying passage 7 is communicated in the discharge end of the first conveying passage 5, and flash leads to The feed end in road 9 is communicated in the second conveying passage 7, and filter screen 8 is arranged in the second conveying passage and is positioned at The downstream of the communicating position of the second conveying passage 7 and flash passage 9.

Breakage signal generator can include baffle plate 11, ennation 13 and breakage signal output block, preferably Ground, in the present embodiment, breakage signal output block is proximity switch 14.Baffle plate 11 can by rotating shaft 12 It is rotatably provided in the discharge end of flash passage 9, the bearing of trend of rotating shaft 12 and flash passage 9 discharge end Discharging direction less perpendicular, ennation 13 is fixing with baffle plate 11, and ennation 13 may be located at baffle plate 11 In the both direction of rotating shaft 12 and become predetermined angular (depending on this angle is according to being embodied as situation), close Switch 14 is fixed on flash passage 9 position of neighbouring baffle plate 12 by fixing bar 15, when 11 turns of baffle plate During dynamic predetermined angular, ennation 13 also rotates in the detection range that predetermined angular and being located adjacent to switchs, this Time proximity switch 14 action send signal X.

When other parts of this sieve breakage detection device with this vibrosieve 100 assemble, can be defeated by first The feed end of material passage 5 is communicated in the sieve lower discharge port of vibrosieve 100, can make the first conveying passage 5 with Second conveying passage 7 is generally on same bearing of trend, and can be arranged as substantially by this bearing of trend Vertical direction, in order to sand material realizes nature discharging under gravity；Furthermore it is possible to make flash passage 9 Feedstock direction or bearing of trend and the second conveying passage 7 between become predetermined angle, such as this predetermined angle Can so also allow for flash passage and be capable of nature flash within 90 °；Furthermore it is possible to employing phase The filter screen 8 answered, the filter pore size of this filter screen 8 than the big predetermined value of screen size of the screen cloth 3 of vibrosieve 100, Such as, the former can be slightly larger than the latter, or the former can ratio the latter big 5% to 10%, in order to ensure filter screen 8 Filter capacity to coarse sand, the filter pore size of filter screen 8 can be adjusted according to actual needs.

Vibrosieve and the sieve of the embodiment of the present invention are described below in conjunction with Fig. 2 to Fig. 4 and concrete scene simultaneously The operation principle of net damage detection device, for convenience of description, also show the sieve of vibrosieve 100 in Fig. 2 The defective material discharging opening of net 3 connects screen cloth defective material tapping channel 6:

In the course of the work, if breakage does not occurs in the screen cloth 3 in screen box 2, screen box 2 is at vibrator (Fig. 2 Not shown) effect under vibrate, simultaneously drive screen cloth 3 vibrate, raw sand is formed after broken link Sand material enters in screen box 2 from the sand inlet 1 of screen box 2 high level, after the sieve aperture of screen cloth 3 sieves, Coarse sand (its particle diameter is more than the screen size of screen cloth 3) is through the defective material discharging opening of screen cloth and from screen cloth defective material discharging Passage 6 is discharged, and (i.e. sand material after the sieve of screen cloth 3, its particle diameter is less than or equal to the sieve aperture of screen cloth 3 for fine sand Size) fall on the sieve bottom discharge passage 4 tilted, and enter through sieve lower discharge port, the first conveying passage 5 In the second conveying passage 7, owing to the filter pore size of the filter screen 8 in the second conveying passage 7 is than screen cloth 3 The big predetermined value of screen size, these fine sands will be discharged, from sieve through drainage screen 8 and from the second conveying passage 7 The coarse sand that net defective material tapping channel 6 is discharged can be back to broken link, discharges from the second conveying passage 7 Fine sand can enter post processing link, such as, enter sand washer or powder concentrator processes；Now, flash Not having sand stream mistake in passage 9, baffle plate 11 is closed.

Shown in Fig. 4, if there is breakage in the screen cloth 3 of vibrosieve 3, relatively small particle and the sand of greater particle size The most at least part of fine sand of material 17 and coarse sand 18 will pass from damaged screen cloth 3, and these sand material are through sieve bottom discharge Passage 4, sieve lower discharge port, the first conveying passage 5 enter in the second conveying passage 7, at filter screen 8 Under filtration, fine sand 17 can be got over drainage screen 8 and discharge from the second conveying passage 7, but coarse sand 18 To be stopped by filter screen 8 and build up, when reaching a certain amount of, the coarse sand 18 of accumulation will enter flash passage Overflowing in 9 and from the discharge end of flash passage 9, the coarse sand 18 of spilling is washed baffle plate 11 open and is made baffle plate 11 and prolong Stretch body 13 to rotate around rotating shaft 12, when ennation 13 enters proximal to the detection region switching 12, close Switch 12 actions, send the signal X characterizing screen cloth 3 breakage, such Field Force or vibrosieve 100 Control system can learn that breakage occurs in screen cloth 3 in time, and the shutdown of control vibrosieve 100 is overhauled in time.

From the foregoing, compared with prior art, vibrosieve and the sieve breakage detection thereof of above-described embodiment fills Put, it is possible to when breakage does not occurs in screen cloth 3, meet the normal of vibrosieve 100 and use (normal discharging) to need Want, and when breakage occurs in screen cloth 3, it is possible to make the control system of Field Force or vibrosieve timely Know, and time control vibrosieve shut down and overhauled, and so frequently checks screen cloth without plant maintenance personnel, Effectively save time, man power and material's cost, improve the service efficiency of vibrosieve 100.

In specific implementation process, proximity switch 14 can connect or integrated corresponding alarm device (is reported to the police Unit), in order to when proximity switch 14 sends signal X, this alarm device sends alarm signal, this warning The type of alarm of device can be that instrument warning, audible alarm or light are reported to the police, and so connects as Field Force When receiving alarm signal, it is possible in time vibrosieve is shut down.Or, it is preferable that vibrosieve can include control Unit processed (can be integrated in the control system of vibrosieve 100), and proximity switch 14 is believed with this control unit Number connect, this control unit can when receiving signal X from proximity switch 14, control vibrosieve 100 stop Machine.Certainly, both schemes can also be used in combination, in order to realizes vibration while sending alarm signal The autostop of sieve 100.It should be noted that in specific implementation process, control unit can use and continue Electrical equipment, PLC (Programmable Logic Controller, programmable logic controller (PLC)) etc. build, Alarm device can use instrument alarm, buzzer or display lamp display etc..

Additionally, combine shown in Fig. 2 and Fig. 4, in specific implementation process, it is preferable that at flash passage 9 Feed end the position of neighbouring first conveying passage 5 is provided with striker plate 10, this striker plate 10 and first The conveying direction of conveying passage 5 or the second conveying passage 8 can form predetermined angular (such as acute angle), so In the environment of vibration, will not surprisingly fall into flash passage 9 from the sand material of the first conveying passage 5 output, It is thus possible to avoid the occurrence of the phenomenon of damaged wrong report, i.e. so it can be avoided that proximity switch 13 does not breaks at screen cloth 3 Signal X is sent during damage.

Shown in Fig. 5, the vibrosieve 100 that another embodiment of the present invention provides can include screen box 2, set Screen cloth the 3, first conveying passage the 5, second conveying passage 7 of being placed in screen box 2, flash passage 9, filter screen 8 and breakage signal generator.

Wherein, the side of filter screen 8 is connected to the exit side of the sieve bottom discharge passage 4 of screen box 2, filter screen 8 Opposite side connects filter screen defective material discharging opening 81；For another angle, in existing vibrosieve, under sieve The exit side of tapping channel extends to sieve lower discharge port, but in the present embodiment, sieves bottom discharge passage 4 Latter end substituted by filter screen 8, sieve lower discharge port also become filter screen defective material discharging opening 81.First conveying passage 5 Feed end be correspondingly arranged in the lower section of filter screen 8, i.e. the sand material through filter screen 8 and can enter into the first conveying In passage 5.The feed end of flash passage 9 is communicated in filter screen defective material discharging opening 81.In embodiments of the present invention, Breakage signal generator is preferably level-sensing device 20, and level-sensing device 20 is arranged on flash passage 9, level-sensing device 20 Action can send signal when flash passage 9 is in predetermined flash state, such as, send the warning of material position Information or alarm signal, or the signal characterizing screen cloth 8 breakage is sent to the control system of vibrosieve.Filter The filter pore size predetermined value bigger than the screen size of screen cloth 3 of net 8, such as, the former can be slightly larger than the latter, Or the former can ratio the latter big 5% to 10%, in order to ensure the filter screen 8 filter capacity to coarse sand, filter screen 8 Filter pore size can be adjusted according to actual needs.

The work of the vibrosieve of another embodiment of the present invention is described below in conjunction with Fig. 5 and concrete scene simultaneously Principle, for convenience of description, the defective material discharging opening of the screen cloth 3 that also show vibrosieve 100 in Fig. 5 connects There is a screen cloth defective material tapping channel 6:

In the course of the work, if breakage does not occurs in the screen cloth 3 in screen box 2, screen box 2 is at vibrator (Fig. 5 Not shown) effect under vibrate, simultaneously drive screen cloth 3 vibrate, raw sand is formed after broken link Sand material enters in screen box 2 from the sand inlet 1 of screen box 2 high level, after the sieve aperture of screen cloth 3 sieves, Coarse sand (its particle diameter is more than the screen size of screen cloth 3) through the defective material discharging opening of screen cloth 3 and goes out from screen cloth defective material Material passage 6 is discharged, and (i.e. sand material after the sieve of screen cloth 3, its particle diameter is less than or equal to the sieve of screen cloth 3 for fine sand Hole dimension) fall on the sieve bottom discharge passage 4 tilted and filter screen 8, owing to the filter pore size of filter screen 8 is than sieve The big predetermined value of screen size of net 3, these fine sands will by filter screen 8 and through the first conveying passage 5 and Discharging from the second conveying passage 7, the coarse sand discharged from screen cloth defective material tapping channel 6 can be back to breaking ring Joint, the fine sand discharged from the second conveying passage 7 can enter post processing link, such as enter sand washer or Powder concentrator processes；Now, filter screen defective material discharging opening 81 does not has sand stream to go out, and does not has in flash passage 9 Sand stream mistake, level-sensing device 20 is not detected by flash state or material position state, thus not operating.

If breakage occurs in the screen cloth 3 of vibrosieve 3, the sand material of relatively small particle and greater particle size is the thinnest Sand and coarse sand will pass from damaged screen cloth 3, these sand material in time sieving bottom discharge passage 4 and filter screen 8, Under the filtration of filter screen 8, fine sand can be got over drainage screen 8 and lead to from the second conveying through the first conveying passage 5 Road 7 is discharged, but coarse sand will export from filter screen defective material discharging opening 81 as filter screen 8 defective material, and lead to from flash The discharge end in road 9 overflows, and now level-sensing device 20 detects overflow situation or material position state, sends sign sieve The signal X of net 3 breakage, the control system of such Field Force or vibrosieve 100 can learn sieve in time There is breakage in net 3, and the shutdown of control vibrosieve 100 is overhauled in time.

From the foregoing, compared with prior art, the vibrosieve of another embodiment above-mentioned can at screen cloth 3 not When occurring damaged, meet the normal of vibrosieve 100 and use (normal discharging) needs, and go out at screen cloth 3 During existing breakage, it is possible to make the control system of Field Force or vibrosieve learn in time, and time control damping is moved Sieve shutdown is overhauled, and so frequently checks screen cloth without plant maintenance personnel, effectively saves time, people Power and material resources cost, improve the service efficiency of vibrosieve 100.

It should be noted that in above-mentioned various embodiments and various optimal way thereof or detailed description of the invention On the basis of, in order to reduce the vibration of vibrosieve to normal conveying or the impact of flash, it is to avoid shaker vibration Conduction effect, reduce uncertainty, shown in Fig. 2 and Fig. 5, it is preferable that the second conveying passage 7 The first conveying pipeline the 71, first flexible link 72 and the second conveying pipeline 73, the first conveying pipeline 71 can be included The feed end that feed end is the second conveying passage 7, the discharge end of the second conveying pipeline 73 is the second conveying passage The discharge end of 7, the discharge end of the first conveying pipeline 71 is communicated in the second conveying pipeline by the first flexible link 72 The feed end of 73；For the embodiment shown in Fig. 2, it is defeated that the feed end of flash passage 9 can be communicated in first Material pipe 71, filter screen 8 can be arranged in the first conveying pipeline 71.

Flash passage 9 can include the first overflow pipe the 91, second flexible link 92 and the second overflow pipe 93, The feed end that feed end is flash passage 9 of the first overflow pipe 91, the discharge end of the second overflow pipe 93 is excessive The discharge end of material passage 9, the discharge end of the first overflow pipe 9 is communicated in second by the second flexible link 92 and overflows The feed end of material pipe 93, breakage signal generator can be arranged in the second overflow pipe 93.

Additionally, screen cloth defective material tapping channel 6 can include the first discharge nozzle the 61, the 3rd flexible link 62 and Second discharge nozzle 63, the feed end of the first discharge nozzle 61 is the feed end of screen cloth defective material tapping channel 6, the The discharge end of one discharge nozzle 61 is communicated in the feed end of the second discharge nozzle 63 by the 3rd flexible link 62, the The discharge end of two discharge nozzles 63 is the discharge end of screen cloth defective material tapping channel 6.When being embodied as, aforementioned each soft Connector can use rubber connector etc., as long as being capable of the isolation of vibration.

It should be noted that in the embodiment that Fig. 2 is corresponding, breakage signal generator includes baffle plate 11 and breaks Damage signal output component, and breakage signal output block is proximity switch 14, in the embodiment that Fig. 5 is corresponding, Breakage signal generator is level-sensing device 20, but is not limited to this, in the embodiment that Fig. 2 is corresponding, damaged Signal generator can also use level-sensing device, and correspondingly, in the embodiment that Fig. 5 is corresponding, breakage signal is sent out Raw device can also use baffle plate 11 and the proximity switch 14 as breakage signal output block；Additionally, at it Under his situation, breakage signal output block can also use other forms, for example, it is also possible to use spacing opening Closing or baffle angle detection part, when baffle plate 11 rotates predetermined angular, this limit switch action is (such as Limit switch is touched by ennation 13) alarm signal can be sent or make vibrosieve shut down, this baffle angle Detection part sends the signal characterizing sieve breakage；Additionally, arranging of ennation 13 can facilitate breakage signal Timely responding to of output block, but in other circumstances, and not exclusively it is limited to this version.

It should be noted that in above-mentioned various embodiment, all there is one layer of screen cloth 3 with vibrosieve 100 and carry out Illustrate, but in other embodiments, if vibrosieve 100 has the screen cloth of more than two-layer, also can realize this Bright corresponding function；Additionally, have the situation of the screen cloth of more than two-layer for vibrosieve 100, above-mentioned enforcement The sieve breakage detection device of example can also be arranged at other positions of vibrosieve 100, i.e. can be broken by screen cloth Wherein one layer of screen cloth that the feed end of the first conveying passage 5 damaging detection device is communicated in addition to top screen Defective material discharging opening, makes the filter pore size screen size than the last layer screen cloth of described wherein one layer of screen cloth of filter screen Big predetermined value, so can detect the damaged situation of this last layer screen cloth, and disclosure satisfy that do not having Defective material conveying when occurring damaged is had to use requirement.

The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this Within bright spirit and principle, any modification, equivalent substitution and improvement etc. made, should be included in this Within bright protection domain.

Claims (10)

1. a sieve breakage detection device, for vibrosieve (100), it is characterised in that described screen cloth breaks Damage detection device and include the first conveying passage (5), the second conveying passage (7), flash passage (9), filter screen (8) and breakage signal generator, wherein:

The feed end of described second conveying passage (7) is communicated in the discharge end of described first conveying passage (5), The feed end of described flash passage (9) is communicated in described second conveying passage (7), and described filter screen (8) sets It is placed in described second conveying passage (7) and is positioned at described second conveying passage (7) and lead to described flash The downstream of the communicating position in road (9)；Described breakage signal generator is arranged on described flash passage (9), For the action when described flash passage (9) is in predetermined flash state.

2. sieve breakage detection device as claimed in claim 1, it is characterised in that in the first situation, Described breakage signal generator is the level-sensing device (20) being arranged at described flash passage (9) discharge end；Or, In this case, described breakage signal generator includes baffle plate (11) and breakage signal output block, Described baffle plate (11) is rotationally arranged at the discharge end of described flash passage (9), and described breakage signal is defeated Go out parts in described baffle plate (11) action when rotating predetermined angular.

3. sieve breakage detection device as claimed in claim 2, it is characterised in that in described the second feelings Under shape, described breakage signal output block is proximity switch (14), limit switch or baffle angle test section Part, described proximity switch (14), described limit switch or described baffle angle detection part are fixed on described The position of the upper neighbouring described baffle plate (11) of flash passage (9).

4. sieve breakage detection device as claimed in claim 3, it is characterised in that described baffle plate (11) On be further fixedly arranged on ennation (13), described ennation (13) described baffle plate (11) rotate predetermined angle The detection range being in described proximity switch (14) or described baffle angle detection part when spending is interior or tactile Touch described limit switch.

5. the sieve breakage detection device as described in any one of Claims 1-4, it is characterised in that described The feed end of flash passage (9) is provided with striker plate (10) in the position of neighbouring described first conveying passage (5).

6. the sieve breakage detection device as described in any one of Claims 1-4, it is characterised in that described Second conveying passage (7) includes the first conveying pipeline (71), the first flexible link (72) and the second conveying pipeline (73), the feed end of described first conveying pipeline (71) is the feed end of described second conveying passage (7), The discharge end of described first conveying pipeline (71) is communicated in described second by described first flexible link (72) The feed end of conveying pipeline (73), the feed end of described flash passage (9) is communicated in described first conveying pipeline (71), Described filter screen (8) is arranged in described first conveying pipeline (71)；And/or

Described flash passage (9) includes that the first overflow pipe (91), the second flexible link (92) and second are overflow Material pipe (93), the feed end of described first overflow pipe (91) is the feed end of described flash passage (9), The discharge end of described first overflow pipe (91) is communicated in described second by described second flexible link (92) The feed end of overflow pipe (93), described breakage signal generator is arranged on described second overflow pipe (93).

7. a vibrosieve (100), including screen box (2) and be arranged in described screen box (2) at least one Layer screen cloth (3), it is characterised in that also include the sieve breakage detection described in any one of claim 1 to 6 Device, wherein: the feed end of the first conveying passage (5) of described sieve breakage detection device is communicated in described The sieve lower discharge port of screen box (2), the filter pore size of described filter screen (8) is bigger than the screen size of bottom screen In predetermined value；Or, the feed end of the first conveying passage (5) of described sieve breakage detection device is communicated in The defective material discharging opening of the wherein one layer of screen cloth in addition to top screen, the filter pore size ratio of described filter screen (8) is described Wherein the screen size of the last layer screen cloth of one layer of screen cloth is more than predetermined value.

8. vibrosieve as claimed in claim 7, it is characterised in that described vibrosieve also includes control unit And/or alarm unit, wherein: described control unit, for when described breakage signal generator action, controls Described vibrosieve (100) is shut down；Described alarm unit, for when described breakage signal generator action, is sent out Go out alarm signal.

9. a vibrosieve, including screen box and at least one of which screen cloth being arranged in described screen box, its feature exists In, also include the first conveying passage (5), the second conveying passage (7), flash passage (9), filter screen (8) With breakage signal generator, wherein:

The side of described filter screen (8) is connected to the exit side of sieve bottom discharge passage (4) of described screen box (2), The opposite side of described filter screen (8) connects filter screen defective material discharging opening (81), described first conveying passage (5) Feed end is correspondingly arranged in the lower section of described filter screen (8), and the discharge end of described first conveying passage (5) is even Leading in the feed end of described second conveying passage (7), the feed end of described flash passage (9) is communicated in institute Stating filter screen defective material discharging opening (81), described breakage signal generator is arranged on described flash passage (9), For the action when described flash passage (9) is in predetermined flash state；The filter opening of described filter screen (8) Size is more than predetermined value than the screen size of bottom screen.

10. vibrosieve as claimed in claim 9, it is characterised in that described second conveying passage (7) bag Include the first conveying pipeline (71), the first flexible link (72) and the second conveying pipeline (73), described first conveying The feed end that feed end is described second conveying passage (7) of pipe (71), described first conveying pipeline (71) Discharge end be communicated in the feed end of described second conveying pipeline (73) by described first flexible link (72)； And/or

Described flash passage (9) includes that the first overflow pipe (91), the second flexible link (92) and second are overflow Material pipe (93), the feed end of described first overflow pipe (91) is the feed end of described flash passage (9), The discharge end of described first overflow pipe (91) is communicated in described second by described second flexible link (92) The feed end of overflow pipe (93), described breakage signal generator is arranged on described second overflow pipe (93).