CN208716004U - A kind of chute blockage detection device and coal charge transmission device - Google Patents
A kind of chute blockage detection device and coal charge transmission device Download PDFInfo
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- CN208716004U CN208716004U CN201820799978.2U CN201820799978U CN208716004U CN 208716004 U CN208716004 U CN 208716004U CN 201820799978 U CN201820799978 U CN 201820799978U CN 208716004 U CN208716004 U CN 208716004U
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- chute blockage
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Abstract
The utility model discloses a kind of chute blockage detection device and coal charge transmission devices, including detection plectrum, driving assembly and detection control unit, the detection plectrum to be mounted in the connecting rod of the driving component, in the driving component horizontal movement under drive；Can the detection control unit normally complete driving trip according to the driving component and judge whether that chute blockage occurs for controlling the driving component operation.The utility model has the advantages that accuracy is high, and high reliablity can effectively prevent coal sample to affect the normal operation of the equipment, and breakage detection device improves the service life of equipment, can effectively prevent coal sample cross contamination.
Description
Technical field
The utility model relates to coal sample detection line control field more particularly to a kind of chute blockage detection device and coal charge transmission dresses
It sets.
Background technique
In sampling system and automatic sample-making system, because the sticky excessive or moisture of coal is excessively high, it can block up often
Coal situation will lead to that the amount of keeping sample is less than normal so that the batch coal sample loses representativeness in this way, if more seriously continuous sample preparation when
Chute blockage accident occurs, will result in the different other coal charge sample mixings of mine, big batch of coal material can not valuate, and cause serious economic risk
And legal risk.
In sampling and preparing system, chute blockage link concentrates on belt filling position, wherein including hopper splicing or elephant trunk splicing
The case where, when the excessive higher coal sample of perhaps moisture of coal charge viscosity will overstock bridging, rotating belt and coal in hopper or elephant trunk
Material contact position skids and causes coal charge that can not transport, and control method is generally in such a way that delay terminates to stop belt in industry, such as
For fruit not to whether chute blockage is effectively detected, coal sample can not transport belt with regard to out of service within a certain period of time, it will hair
Raw chute blockage accident, at this time if alarmed without chute blockage, next batch coal sample continues that sample mixing accident will be will cause.
Chute blockage is detected in industry, a material-level measure switch, generally capacitive approach switch are usually installed, or
Person's Anti-rotation type material level switch, as shown in fig. 1.Capacitive approach switch principle of induction are as follows: coal be it is nonmetallic, capacitive proximity is opened
Pass can incude non-metallic object；Anti-rotation type material level switch principle are as follows: when coal charge accumulation is to rotary is switched into resistance, triggering is expected
Bit switch issues chute blockage signal.Such method and device cannot effectively detect chute blockage situation in sampling and preparing system, because
There is following drawback for them:
1, sensor itself is directly contacted with coal charge, and the severe running environment such as moist for a long time, extruding makes sensor sheet
Body is easily damaged failure；
2, such sensor cannot accurately differentiate following two situation: sensor itself glues in coal or entire space
Chute blockage has occurred, because both the above situation sensor can all have signal output, can not distinguish and be possible to cause system false sense
Answer false alarm.
3, for from volume, for sensor sheet as three dimensional designs, occupied space is excessive, easily causes coal charge accumulation and glues
It is attached to sensor proximity, be easy to cause coal sample cross contamination；
4, sensor can only be installed in designated position, which can only detect the chute blockage situation of designated position point, and coal
Characteristic it is complicated, accumulation form can not be predicted, and guarantee the accuracy of testing result in this way, it is necessary to install in multiple positions such
Switch, cost greatly improve.
Utility model content
The technical problems to be solved in the utility model is that for technical problem of the existing technology, this is practical new
Type provides a kind of accuracy height, and high reliablity can effectively prevent coal sample to affect the normal operation of the equipment, and breakage detection device improves
The service life of equipment can effectively prevent the chute blockage detection device and coal charge transmission device of coal sample cross contamination.
In order to solve the above technical problems, the utility model proposes technical solution are as follows: a kind of chute blockage detection device, including inspection
It surveys plectrum, driving assembly and detection control unit, the detection plectrum to be mounted in the connecting rod of the driving component, be used for
The driving component horizontal movement under drive；The detection control unit is run for controlling the driving component, and according to
Can the driving component normally complete driving trip and judge whether that chute blockage occurs.
Further, the detection plectrum makees piston motion under the drive of the driving component；Alternatively, the detection is dialled
Piece makees fan shape moving under the drive of the driving component.
Further, further include relay box, feed inlet is provided at the top of the relay box, discharge port is arranged in bottom；It is described
The first opening of setting on the side wall of relay box, the connecting rod of the driving component pass through first opening, drive the detection
Plectrum is in the relay box internal motion.
Further, first opening is provided with closure member, for closing first opening and the connecting rod
Between space.
Further, the driving component is motor drive component or cylinder driving assembly；The driving component passes through position
Set initial position and the end position of switch label driving trip.
Further, the feeding zone that the position for detecting plectrum is located at coal charge in the initial state is overseas.
Further, the thrust range that the driving component drives the detection plectrum to generate is 2N to 3N.
It further, further include alarm module, the alarm module is connect with the detection control unit, for occurring
Alarm signal is issued when chute blockage.
Further, the detection control unit is also used to when chute blockage occurs, and is issued for controlling vibrator vibration
Vibration drive signal.
Further, the thickness of the detection plectrum is less than 2mm, is highly greater than 1cm, and width is greater than 1cm.
Further, the top of the cross section of the connecting rod is wedge shape.
A kind of coal charge transmission device, including hopper and conveyer belt further include described in any item chute blockage detection devices as above,
The chute blockage detection device is arranged between the hopper and the conveyer belt, and the detection plectrum of the chute blockage detection device will be
Horizontal movement in spatial dimension between the discharge port of the hopper and the conveyer belt.
Further, belt covering is additionally provided on the conveyer belt；Rewinding mouth is provided on the belt covering；
The chute blockage detection device is mounted on the belt covering.
It further, further include vibrator, the vibrator is mounted on the hopper.
Compared with the prior art, the advantages of the utility model are:
1, the utility model drives detection plectrum to make piston motion or fan shape moving by driving assembly, and inswept coal sample goes out
Material tube diameter, according to the situation of being obstructed of detection plectrum to determine whether chute blockage occurs, Detection accuracy is high；Meanwhile only detection is dialled
Piece, and connecting rod for installing detection plectrum are in contact with coal sample, and driving assembly and detection control unit will not
It is in contact with coal sample, it may therefore be assured that driving assembly and detection control unit operate under a good environment, thus
The service life that equipment can be improved, prevent from influencing on driving assembly and detection control unit because of the viscous product of coal sample detection accuracy and
Accuracy.
Although 2, in the utility model detect plectrum and connecting rod itself be in contact with coal sample, by detection plectrum and
The design of the shape of connecting rod can make product coal amount thereon seldom, moreover, detection plectrum and the product coal of connecting rod will not shadows
Ring the precision and accuracy of chute blockage detection.
3, the detection plectrum of the utility model in the initial state will not be overseas in the feeding zone of hopper, and normal in hopper
It not will do it detection when discharging, meanwhile, detection plectrum is flake, and the top of the cross section of connecting rod is wedge shape, therefore, coal charge
It will not be accumulated on detection plectrum and connecting rod, can effectively avoid coal sample cross contamination.
4, the utility model detects whether that chute blockage occurs by detection plectrum, detects the big of plectrum by reasonable equipment
It is small, the entire tapping channel for detecting plectrum inswept hopper during the motion can be made, so as to the whole of effectively perceive hopper
Body discharging situation, makes accurate judgement, needs to increase sensor in different positions relative to traditional detection device, significantly
Cost has been saved, has improved efficiency, reliability, stability is all higher.
5, closure member is arranged by setting relay box, and in the first opening of relay box in the utility model, can be effective
The coal charge for preventing from falling from hopper overflowed from the first opening, coal charge can be effectively prevent to leak.
Detailed description of the invention
Fig. 1 is prior art chute blockage detection mode schematic diagram.
Fig. 2 is the specific workflow diagram of the utility model specific embodiment chute blockage detection device.
Fig. 3 is the overall structure diagram of the utility model specific embodiment.
Fig. 4 is that the utility model specific embodiment detects plectrum, relay box structural schematic diagram.
Fig. 5 is the utility model specific embodiment connecting rod cross-sectional view.
Marginal data: 1, plectrum is detected；2, driving assembly；3, connecting rod；4, position switch；5, hopper；6, vibrator；7,
Relay box；8, belt covering.
Specific embodiment
The utility model is further described below in conjunction with Figure of description and specific preferred embodiment, but not because
This and limit the protection scope of the utility model.
The transport process of coal charge are as follows: coal charge is placed in hopper 5, and the coal charge in hopper 5 is fallen to from the discharge port of hopper 5
On belt, then transported by belt.
As shown in figure 3, the chute blockage detection device of the present embodiment, including detection plectrum 1, driving assembly 2 and detection control are single
Member, detection plectrum 1 is mounted in the connecting rod 3 of driving assembly 2, in the horizontal movement under drive of driving assembly 2；Detection control
Can unit processed normally complete driving trip according to driving assembly 2 and judge whether to occur to block up for controlling the operation of driving assembly 2
Coal.The chute blockage detection device of the present embodiment is mounted below the discharge port of hopper 5, so that detection plectrum 1 can be swept during exercise
Cross the tapping channel of hopper 5.
In the present embodiment, detection plectrum 1 makees piston motion under the drive of driving assembly 2；Alternatively, detection plectrum 1 exists
Make fan shape moving under the drive of driving assembly 2.Driving assembly 2 is motor drive component or cylinder driving assembly；Driving assembly 2 is logical
Cross initial position and end position that position switch 4 marks driving trip.The position for detecting plectrum 1 in the initial state is located at coal
The feeding zone of material is overseas.As shown in A in Fig. 4, by left and right two position switch 4 come determine connecting rod 3 position whether be
Initial position or end position, detect plectrum 1 at initial position and are located at right side, and plectrum 1 is detected in end position and is located at a left side
Tapping channel (the discharging of hopper 5 of the completely inswept hopper 5 of 1 side-to-side movement of plectrum is detected in side (position shown in left-hand broken line in figure)
Shown in the box as dashed lines of channel).Alternatively, inswept hopper 5 goes out detection plectrum 1 in the horizontal plane by the way of fan shape moving
Below material mouth, as shown in B in Fig. 4.Whether the position that connecting rod 3 is determined by upper and lower two position switch 4 is initial position
Or end position, plectrum 1 is detected at initial position and is located above, and plectrum 1 is detected in end position and is located below (under in figure
Position shown in dotted line), detection plectrum 1 is completely inswept by rotating an inswept fan-shaped region in the horizontal plane around its center of circle
The tapping channel of hopper 5 (shown in the tapping channel of hopper 5 box as dashed lines).
In the present embodiment, further include relay box 7, feed inlet is provided at the top of relay box 7, discharge port is arranged in bottom；In
Turn the first opening of setting on the side wall of box 7, the connecting rod 3 of driving assembly 2 passes through the first opening, drives detection plectrum 1 in transfer
7 internal motion of box.The feed inlet of relay box 7 is docked with the discharge port of hopper 5, on the discharge port and belt covering 8 of relay box 7
Feed inlet docking, coal charge in hopper 5 can be made to complete material in the environment of relatively closing for one.Certainly, if belt
When upper no belt covering 8, then coal charge is directly fallen from the discharge port of relay box 7, fall on belt.
In the present embodiment, the first opening is provided with closure member, for closing the sky between the first opening and connecting rod 3
Between.Closure member is seal weatherstrip or baffle etc..By closure member, it can prevent coal charge in dropping process from the first opening
It overflows, pollutes external equipment, environment, be also prevented from and reduce the quantity of coal charge because the spilling of coal charge is scattered and disappeared, influence subsequent detection
Precision.
In the present embodiment, the thrust range that the driving of driving assembly 2 detection plectrum 1 generates is 2N to 3N.It is closed by setting
The thrust range of reason, be on the one hand able to drive detection plectrum 1 move, on the other hand, but can guarantee accurately judge be
No generation chute blockage, and the case where be unlikely to that thrust is excessive directly to dissipate dump, can not judge chute blockage.
It in the present embodiment, further include alarm module, alarm module is connect with detection control unit, for chute blockage to occur
When issue alarm signal.Staff can be reminded to handle in time when chute blockage occurs by alarm module.Detection control
Unit is also used to when chute blockage occurs, and issues the vibration drive signal for controlling the vibration of vibrator 6.So as in certain journey
Automatic elimination chute blockage situation is realized on degree.
In the present embodiment, the thickness for detecting plectrum 1 is less than 2mm, is highly greater than 1cm, and width is greater than 1cm.Preferably, it examines
The width for surveying plectrum 1 is more than or equal to the width of tapping channel.The top of the cross section of connecting rod is wedge shape.Preferably, as in Fig. 5
A, three kinds of shapes shown in B, C.Due to top be wedge shape therefore, even if there is coal charge to fall in connecting rod 3, heap will not be generated
Product.
As shown in figure 3, the coal charge transmission device of the present embodiment, including hopper 5 and conveyer belt, it further include any one of as above
Chute blockage detection device, chute blockage detection device are arranged between hopper 5 and conveyer belt, and the detection plectrum 1 of chute blockage detection device is being expected
Horizontal movement in spatial dimension between the discharge port and conveyer belt of bucket 5.Belt covering 8 is additionally provided on conveyer belt；Belt
Rewinding mouth is provided on covering 8；Chute blockage detection device is mounted on belt covering 8.It further include vibrator 6, vibrator 6 is pacified
On hopper 5.Vibrator 6 works under the control of the detection control unit of chute blockage detection device.
In the present embodiment, further illustrated further combined with the specific work process of chute blockage detection device, as shown in Fig. 2,
Detection plectrum 1 below 5 discharge port of hopper is set, and the lower section under the drive of driving assembly 2 from discharge port is inswept, passes through inspection
Can survey driving assembly 2 normally complete driving trip and judge whether that chute blockage occurs.Plectrum 1 is detected under the drive of driving assembly 2
The lower section of horizontal rectilinear motion is inswept discharge port；Alternatively, the horizontal fan-shaped movement under the drive of driving assembly 2 of detection plectrum 1
The lower section of inswept discharge port.Detection plectrum 1 moves in the relay box 7 for being provided with discharge outlet, the lower section of inswept discharge port.It drives
Dynamic component 2 is motor drive component or cylinder driving assembly；Driving assembly 2 marks the starting of driving trip by position switch 4
Position and end position.
In the present embodiment, after coal charge conveying starting operation reaches preset duration, the driving detection progress chute blockage of plectrum 1
Detection.It is a length of by estimating that the coal charge in identified hopper 5 completes duration required for normal discharge when preset.
In the present embodiment, it is illustrated by taking the detection of a specific chute blockage as an example.After coal charge is put into hopper 5, open
Coal charge travelling belt.According to the quantity for the coal charge being put into hopper 5 and the normal discharging speed of hopper 5, it is estimated that just
Time T1 required for often discharging is completed.Then after opening coal charge travelling belt T1 duration, if there is no chute blockage phenomenon,
Coal charge in theoretical elevating hopper 5 has all been walked by belt transport.Material is then deposited in case of chute blockage phenomenon, the coal charge of blocking
It struggles against on the belt of 5 directly below the discharge openings, at this point, although belt is operating, belt is not since coal charge has certain viscosity
Normally coal charge can be transported.
In the present embodiment, after opening coal charge travelling belt T1 duration, start driving assembly 2, driven by driving assembly 2
It is inswept below the discharge port of hopper 5 to detect plectrum 1.If detecting plectrum 1 in the process of movement there is no coal charge blocking
In will not in encounter coal charge, that is to say, that detection plectrum 1 will not encounter blocking during the motion, can normally complete to drive
Stroke；Otherwise, in case of coal charge blocking, then the coal charge of blocking can be encountered by detecting plectrum 1 in the process of movement, that is,
It says that detection plectrum 1 can encounter blocking in the process of movement, cannot normally complete driving trip.By to detection 1 energy of plectrum
It is no normally without being judged at driving trip, so that it may determine whether that chute blockage has occurred.In the present embodiment, it cannot normally complete
Driving trip include: in driving detection 1 motion process of plectrum of driving assembly 2 required power change, and the variation of power
When value is greater than preset threshold value, then judgement cannot normally complete driving trip；Alternatively, the driving detection plectrum 1 of driving assembly 2 moves
When the resistance being subject in the process is greater than preset resistance threshold value, then judgement cannot normally complete driving trip；Alternatively, driving assembly
2 driving detection plectrums 1 move, and in preset time span, when cannot move to end position from initial position, judgement cannot
Normally complete driving trip.
In the present embodiment, when the judging result of the continuous detection of (such as 3 times) chute blockage several times of detection plectrum 1 is all not send out
Raw chute blockage, it is determined that no chute blockage happens.
In the present embodiment, detection plectrum 1 can be the inswept discharging of hopper 5 in the horizontal plane by the way of piston motion
It whether is initial position by controlling two position switch 4 come the position for determining connecting rod 3 as shown in A in Fig. 4 below mouthful
Or end position, plectrum 1 is detected at initial position and is located at right side, and in end position, it is (left in figure to be located at left side for detection plectrum 1
Position shown in the dotted line of side), detect tapping channel (tapping channel of hopper 5 such as figure of the completely inswept hopper 5 of 1 side-to-side movement of plectrum
Shown in middle dashed rectangle).Alternatively, detection plectrum 1 is by the way of fan shape moving in the horizontal plane under inswept 5 discharge port of hopper
Side, as shown in B in Fig. 4.Whether the position that connecting rod 3 is determined by upper and lower two position switch 4 is initial position or end
Position is detected plectrum 1 at initial position and is located above, and in end position, detection plectrum 1, which is located below, (descends dotted line institute in figure
Show position), detection plectrum 1 by around its center of circle rotation inswept fan-shaped region in the horizontal plane, complete inswept hopper 5
Tapping channel (shown in the tapping channel of hopper 5 box as dashed lines).
In the present embodiment, position switch 4 uses magnetic switch, good reliability, it is not easy to the interference by coal charge.Driving
Component 2 use motor drive component 2, have many advantages, such as it is easy for installation, it is small in size.Certainly, driving assembly 2 can also use cylinder
Driving assembly 2 has high reliablity.
In the present embodiment, the thrust range that the driving of driving assembly 2 detection plectrum 1 generates is 2N to 3N.It is closed by setting
The thrust range of reason, be on the one hand able to drive detection plectrum 1 move, on the other hand, but can guarantee accurately judge be
No generation chute blockage, and the case where be unlikely to that thrust is excessive directly to dissipate dump, can not judge chute blockage.
In the present embodiment, when passing through the tapping channel below detection inswept 5 discharge port of hopper of plectrum 1, occur in judgement
After chute blockage, it is at least repeated once execution following steps: the vibrator 6 on starting hopper 5, and after preset interval duration again
By detecting plectrum 1 detect whether that chute blockage occurs.The time span of preset interval duration is successively successively decreased.By starting vibrator
6, under the coal charge in hopper 5 being shaken, vibration can also be conducted to the dump of blocking, allow the belt to transport coal charge.
The each vibration time of vibrator 6 and preset interval duration can according to need setting.It such as vibrates 10 seconds, preset interval duration
It is 30 seconds, i.e., that is, after chute blockage occurs for judgement, opens vibrator 6 and vibrate 10 seconds, 20 seconds after the stopping of vibrator 6, again
Driving detection plectrum 1 carries out chute blockage judgement and executes the above process again if still there is chute blockage, until duplicate number
Reach preset number, illustrates that chute blockage cannot solve automatically, then issue alarm signal, stop the operation of belt；Or pass through inspection
It surveys there is no chute blockage, illustrates that the coal charge in hopper 5 has discharged completions, stops the operation of belt, end.
The preferred embodiment of above-mentioned only the utility model, does not impose any limitation on the present invention.Though
So the utility model has been disclosed with preferred embodiment as above, however is not intended to limit the utility model.Therefore, it is all without departing from
The content of technical solutions of the utility model any is simply repaired according to the utility model technical spirit is made to the above embodiment
Change, equivalent variations and modification, should all fall in the range of technical solutions of the utility model protection.
Claims (14)
1. a kind of chute blockage detection device, it is characterised in that: including detecting plectrum (1), driving assembly (2) and detection control unit,
Detection plectrum (1) is mounted in the connecting rod (3) of the driving component (2), for driving in the driving component (2)
Lower horizontal movement；The detection control unit is run for controlling the driving component (2), and according to the driving component (2)
Driving trip can be normally completed to judge whether that chute blockage occurs.
2. chute blockage detection device according to claim 1, it is characterised in that: the detection plectrum (1) is in the driving group
Make piston motion under the drive of part (2)；Alternatively, the detection plectrum (1) makees fan-shaped fortune under the drive of the driving component (2)
It is dynamic.
3. chute blockage detection device according to claim 1, it is characterised in that: further include relay box (7), the relay box
(7) top is provided with feed inlet, and discharge port is arranged in bottom；The first opening of setting, the driving on the side wall of the relay box (7)
The connecting rod (3) of component (2) passes through first opening, and the detection plectrum (1) is driven to transport inside the relay box (7)
It is dynamic.
4. chute blockage detection device according to claim 3, it is characterised in that: first opening is provided with closure member,
For closing the space between first opening and the connecting rod (3).
5. chute blockage detection device according to claim 3, it is characterised in that: the driving component (2) is motor driven group
Part or cylinder driving assembly；The driving component (2) marks initial position and the stop bits of driving trip by position switch (4)
It sets.
6. chute blockage detection device according to claim 5, it is characterised in that: the detection plectrum (1) in the initial state
Position be located at coal charge feeding zone it is overseas.
7. chute blockage detection device according to claim 5, it is characterised in that: the driving component (2) drives the detection
The thrust range that plectrum (1) generates is 2N to 3N.
8. chute blockage detection device according to claim 7, it is characterised in that: it further include alarm module, the alarm module
It is connect with the detection control unit, for issuing alarm signal when chute blockage occurs.
9. chute blockage detection device according to claim 1, it is characterised in that: the detection control unit is also used to occurring
When chute blockage, the vibration drive signal for controlling vibrator (6) vibration is issued.
10. chute blockage detection device according to any one of claims 1 to 9, it is characterised in that: detection plectrum (1)
Thickness is less than 2mm, is highly greater than 1cm, and width is greater than 1cm.
11. chute blockage detection device according to any one of claims 1 to 9, it is characterised in that: the cross section of the connecting rod
Top be wedge shape.
12. a kind of coal charge transmission device, including hopper (5) and conveyer belt, it is characterised in that: further include such as claim 1 to 11
Described in any item chute blockage detection devices, the chute blockage detection device are arranged between the hopper (5) and the conveyer belt, institute
The detection plectrum (1) of chute blockage detection device is stated in the spatial dimension between the discharge port and the conveyer belt of the hopper (5)
Horizontal movement.
13. coal charge transmission device according to claim 12, it is characterised in that: be additionally provided with belt on the conveyer belt and cover
Cover piece (8)；Rewinding mouth is provided on the belt covering (8)；The chute blockage detection device is mounted on the belt covering
(8) on.
14. coal charge transmission device according to claim 13, it is characterised in that: further include vibrator (6), the vibrator
(6) it is mounted on the hopper (5).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820799978.2U CN208716004U (en) | 2018-05-28 | 2018-05-28 | A kind of chute blockage detection device and coal charge transmission device |
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| CN201820799978.2U CN208716004U (en) | 2018-05-28 | 2018-05-28 | A kind of chute blockage detection device and coal charge transmission device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108584199A (en) * | 2018-05-28 | 2018-09-28 | 湖南三德科技股份有限公司 | A kind of chute blockage detection method, device and coal charge transmission device |
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2018
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108584199A (en) * | 2018-05-28 | 2018-09-28 | 湖南三德科技股份有限公司 | A kind of chute blockage detection method, device and coal charge transmission device |
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