CN208699921U - The disconnected coal prior-warning device of coal chute of coal feeder and system - Google Patents
The disconnected coal prior-warning device of coal chute of coal feeder and system Download PDFInfo
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- CN208699921U CN208699921U CN201821285964.5U CN201821285964U CN208699921U CN 208699921 U CN208699921 U CN 208699921U CN 201821285964 U CN201821285964 U CN 201821285964U CN 208699921 U CN208699921 U CN 208699921U
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- coal
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- chute
- breaks
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Abstract
The utility model discloses a kind of disconnected coal prior-warning device of coal chute of coal feeder and systems；Coal chute of coal feeder breaks coal prior-warning device, it include: radio-transmitting apparatus, wireless radio wave receiver, radio wave shield device, radio wave transmission hole and detection hole are set on the coal spout, radio-transmitting apparatus connection radio wave transmission hole is used for coal breakage pipe pre-support radio wave, wireless radio wave receiver connection radio wave detection hole is used to detect the electric field strength of the radio wave in coal spout, and the outside of radio-transmitting apparatus, wireless radio wave receiver and coal spout is arranged in the radio wave shield device.The invention also discloses a kind of disconnected coal early warning systems of coal chute of coal feeder；The characteristic that signal strength will decay when being propagated in raw coal using radio wave realizes the non-contact detection of the disconnected coal of coal spout.
Description
Technical field
The utility model relates to a kind of detection device, the coal early warning dress in particular to a kind of coal chute of coal feeder breaks
It sets and system.
Background technique
The raw coal of coal-fired station is sent into run coal bin by coal conveyer belt first, and the coal spout through run coal bin lower part is fallen in
Coal pulverizer is sent on the belt of feeder.Sometimes raw coal is blocked and is no longer fallen in run coal bin and coal spout joint portion, then coal breakage
Coal in pipe gradually decreases, until there is no coal, i.e. feeder disconnected coal occurs, is mounted on feeder at this time on the belt of feeder
Internal disconnected coal detection device issues coal cutting off alarm, and operations staff is reminded to handle.
The disconnected coal detection device of existing feeder can not detect the disconnected coal in coal spout, therefore it is not prompt enough to alarm.Due to
Hot wind in coal pulverizer can enter feeder because breaking coal in feeder, and be advanced into run coal bin along feeder, coal spout,
The damages such as the excessively high belt easily caused in feeder of wind-warm syndrome, detection instrument, influence equipment safety operation.Also the feeder having is disconnected
Coal detection device installs sound wave type detection device at coal spout, and the sound wave generated when being fallen by raw coal with sensor friction is sentenced
It is disconnected whether disconnected coal, there are equipment attritions it is serious, the service life is short, detection is unreliable the problems such as, accurate detection and Realtime Alerts are not achieved.
It also can detecte the coal amount in coal spout using high-energy radiation, but since radiation detection devices are easy to cause to hurt to human body
Evil, pollution environment, therefore should not apply in production scene.
Therefore, how to realize the safe and reliable detection to the coal that breaks at coal spout, be that those skilled in the art are urgently to be resolved
Technical problem.
Utility model content
The utility model to solve the above-mentioned problems, proposes a kind of dress using the disconnected coal of radio wave detection coal spout
It sets, the characteristic that signal strength will decay when being propagated in raw coal using radio wave, realizes the contactless of the disconnected coal of coal spout
Detection.
To achieve the goals above, the utility model adopts the following technical solution:
Coal chute of coal feeder breaks coal prior-warning device, comprising: radio-transmitting apparatus, wireless radio wave receiver, wireless
Electric-wave shielding device for use, is arranged radio wave transmission hole and detection hole on the coal spout, and the radio-transmitting apparatus connects
Radio wave transmission hole is connect for coal breakage pipe pre-support radio wave, wireless radio wave receiver to connect radio wave detection hole
For detecting the electric field strength of the radio wave in coal spout, the radio wave shield device setting is filled in radio wave transmission
It sets, the outside of wireless radio wave receiver and coal spout.
Further, the disconnected coal prior-warning device of coal chute of coal feeder, further includes: controller, display and alarm.The control
Device connection wireless radio wave receiver, display and alarm processed.
Further, the disconnected coal prior-warning device of coal chute of coal feeder, further includes sealing device, sealing device is non-metallic material
Material, the sealing device is for sealing radio wave transmission hole or/and radio wave detection hole.For preventing coal chute of coal feeder
Radio-transmitting apparatus or/and wireless radio wave receiver are damaged in interior coal breakage dropping process.
Further, the sealing device is sealing-plug, is arranged in radio wave transmission hole or/and radio wave detection hole
Hole in.
Further, the sealing device is diaphragm seal, is arranged in radio wave transmission hole or/and radio wave detection hole
Hole outside.
Further, the diaphragm seal is fixed on the tube wall on the outside of coal chute of coal feeder by nonmetallic protection gasket.
Further, the radio-transmitting apparatus is wireless router or is wireless aps.
Further, the wireless radio wave receiver is RSSI detector.
Further, the disconnected coal prior-warning device of coal chute of coal feeder, further includes the air bubble that the run coal bin of feeder is arranged in
And/or mechanical shaking device, the controller are connect with air bubble and/or mechanical shaking device.
Further, the setting of the radio-transmitting apparatus and wireless radio wave receiver is more than or equal to two groups.Institute
State a radio-transmitting apparatus and a wireless radio wave receiver to be correspondingly arranged be one group, it is corresponding that multiple groups can be set
Radio-transmitting apparatus and wireless radio wave receiver.Preferably, three groups of the present embodiment setting installation, when wantonly two groups of judgements are disconnected
When coal, that is, issue coal cutting off alarm.
Further, every group of radio-transmitting apparatus and wireless radio wave receiver are oppositely arranged on the straight of coal spout
On diameter.
Coal chute of coal feeder breaks coal early warning system, breaks coal prior-warning device including a kind of above-mentioned coal chute of coal feeder.
Compared with prior art, the utility model has the following beneficial effects:
(1) using the coal that whether breaks in radio wave detection coal chute of coal feeder road, detection device is not contacted with raw coal, device
Structure is simple, high reliablity, long service life, maintenance cost are low.The intensity of radio wave signal is transferred to control by the present apparatus
Device is shown and is alarmed, so that monitoring personnel finds the disconnected coal failure of buster in time, is handled disconnected coal to operations staff and is provided
Time enough, the equipment damage for preventing disconnected coal from may cause and the adverse effect to production process, have important society
Benefit and economic benefit.
(2) it will not be caused harm to the human body, the device of the utility model can answer extensively using radio wave as signal
With.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation do not constitute the restriction to the application for explaining the application.
Fig. 1 is the structural schematic diagram of the utility model；
Wherein: 1, coal spout；2, launch hole；3, radio-transmitting apparatus；4, diaphragm seal；5, nonmetallic protection gasket；
6, metal shielding box；7, fixing bolt；8, wireless radio wave receiver；9, run coal bin；10, feeder belt.
Specific embodiment:
The utility model is described in further detail with embodiment with reference to the accompanying drawing.
It is noted that described further below be all exemplary, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Following embodiments are a kind of typical embodiment of the application, the coal early warning as shown in Figure 1, coal chute of coal feeder breaks
Device, comprising: radio-transmitting apparatus 3, wireless radio wave receiver 8, radio wave shield device, on the coal spout
Radio wave transmission hole 2 and detection hole 2-1 be set, the radio-transmitting apparatus 3 connect radio wave transmission hole 2 be used for
Emit radio wave in coal spout 1, wireless radio wave receiver 8 connects radio wave detection hole 2-1 for detecting in coal spout 1
Radio wave electric field strength, the radio wave shield device is arranged in radio-transmitting apparatus 3, radio wave reception
The outside of device 8 and coal spout 1.
Raw coal is stored in the run coal bin 9 of feeder, raw coal falls on feeder belt 10 by coal spout 1 when feeder works
On by raw coal transportation to raw coal use equipment.Pass through radio wave hair of the setting radio-transmitting apparatus 3 on coal breakage pipeline
The radio wave of transmitting certain frequency and intensity in perforation 2, wireless radio wave receiver 8 is from the radio wave on coal breakage pipeline
Radio wave is received at detection hole 2-1, radio wave encounters raw coal signal intensity attenuation in the pipeline of coal spout, by connecing
The radio wave signal intensity received judges the coal that whether breaks in coal spout 1.
Coal chute of coal feeder breaks coal prior-warning device, further includes controller, display and alarm.The controller connects nothing
Line radio wave receiver, display and alarm.Wireless radio wave receiver detects the strength signal of radio wave signal, will
Strength signal is sent to controller, and whether controller occurs disconnected coal according to the threshold decision of the intensity of setting, when lower than setting
Threshold value illustrates that the coal cinder passed through in coal spout is intensive, illustrates few coal in pipeline when being higher than the threshold value set, is then determined as disconnected coal.When
It is determined as controller control alarm equipment alarm when disconnected coal.Controller can also show the intensity of radio wave signal received
It is shown on device.Preferably, the wireless radio wave receiver of the present embodiment selects RSSI detector.The alarm is preferably acousto-optic
Alarm.The radio-transmitting apparatus, which can according to need, selects any wireless transmitter in the prior art, excellent
Choosing can be wireless router or be wireless aps.
Preferably, run coal bin air bubble is set in run coal bin and/or run coal bin mechanical shaking device, the feeder is fallen
The controller of the disconnected coal prior-warning device of coal pipe is also connected with run coal bin air bubble and/or run coal bin mechanical shaking device, when to coal
When disconnected coal occurring in machine coal spout, controller starts air bubble and/or mechanical shaking device, makes the coal in run coal bin by external force
Effect restores to fall.
Radio wave transmission hole 2 and radio wave detection hole 2-1, the detection hole 2-1 on the pipeline of coal spout 1 and
Launch hole 2 is through-hole, and the propagating characteristic of radio wave is critical dimensions, and the setting of launch hole 2 and detection hole 2-1 can be arbitrarily
Apart from upper, it is preferred that launch hole 2 and detection hole 2-1 where radio-transmitting apparatus 3 and wireless radio wave receiver 8
It is arranged symmetrically in the two sides of coal spout 1, and the both ends of the same diameter in 1 pipeline section of coal spout circle.
One radio-transmitting apparatus 3 and a wireless radio wave receiver 8 are correspondingly arranged, and described be correspondingly arranged refers to
One radio wave receiving device 8 is used to receive the radio wave that corresponding radio-transmitting apparatus 3 issues.Preferably, institute
It states the radio-transmitting apparatus 3 being correspondingly arranged and the two sides of coal spout 1 is symmetrically arranged in wireless radio wave receiver 8, and
And the both ends of the same diameter in 1 pipeline section of coal spout circle.By be correspondingly arranged radio-transmitting apparatus 3 and one
Wireless radio wave receiver 8 is known as one group, and the corresponding radio-transmitting apparatus 3 of multiple groups and radio wave reception dress can be set
Set 8.Preferably, the setting of the radio-transmitting apparatus 3 and wireless radio wave receiver 8 is more than or equal to two groups.
Preferably, the present embodiment setting three groups of radio-transmitting apparatus of installation and wireless radio wave receiver, when wantonly two
When group judges disconnected coal, that is, issue coal cutting off alarm.
The coal spout 1 of the present embodiment is metal material, so radio wave shield device can be set to radio wave screen
Box 6 is covered, radio-transmitting apparatus 3 and wireless radio wave receiver 8 are separately fixed in radio wave shield box, nothing is passed through
Line wave shield box is directly anchored on 2 launch holes and 2-1 detection hole of the pipeline outer wall of buster.When coal spout 1 is not gold
When belonging to material, metal screen layer will be set around coal spout 1, so that radio-transmitting apparatus 3, coal spout 1 and radio
Wave receiving device 8 is in shielding space.The outside of radio-transmitting apparatus 3 and radio receiver 8 adds metal shielding box 6
It is electromagnetically shielded, radio wave is mainly propagated from aperture 2 and 2-1, and the decaying of radio wave signal is mainly and in coal spout 1
Raw coal amount it is related.
Preferably, in order to protect radio-transmitting apparatus and wireless radio wave receiver, in the radio of coal breakage pipeline
Sealing device is set at wave launch hole and radio wave detection hole, prevents from damaging in the coal breakage dropping process in coal chute of coal feeder
Radio-transmitting apparatus or/and wireless radio wave receiver, and in order to not influence the transmission of radio wave, by sealing device
For nonmetallic materials.
Preferably, the sealing device is sealing-plug, and radio wave transmission hole or/and radio wave detection hole is arranged in
In hole.
Preferably, the sealing device is diaphragm seal 4, is arranged in radio wave transmission hole or/and radio wave detection hole
Hole outside, for sealing radio wave transmission hole 2 or radio wave detection hole 2-1.The diaphragm seal passes through nonmetallic protection
Gasket 7 is fixed on the tube wall on the outside of coal chute of coal feeder.The fixed form can there are many, be such as screwed, buckle it is solid
It is fixed, non-metal protection sheet 5 is fixed on pipeline outer wall by fixing bolt 7 as shown in Figure 1, it will by non-metal protection sheet 5
Diaphragm seal 4 is pressed in radio wave transmission hole 2 or radio wave detection hole.
The present embodiment selects wireless router as radio-transmitting apparatus and using mobile phone as radio wave reception
Device has carried out the detection of the disconnected coal of coal spout, specific as follows for illustrating the use of the present apparatus:
Using current widely applied wireless internet router as radio-transmitting apparatus, select 2.4GHz without route
By device signal, wireless router is mounted in Fig. 1 in metal shielding box 6；Using the mobile phone with WLAN function as radio
Mobile phone is placed on the metal shielding box at metal shielding box, not installing right side on the right side of Fig. 1 temporarily by wave receiving device；By mobile phone with
Wireless internet router establishes communication, observes the intensity of the WLAN signal on mobile phone, because coal breakage pipe diameter only has about 0.5 meter,
Wireless router and mobile phone are very close, when in coal spout without coal, the WLAN signal on mobile phone show it is most strong, i.e., four
Lattice；When being full of coal in coal spout, the WLAN signal on mobile phone shows only one lattice, shows no signal sometimes；It will be in Fig. 1
Coal spout is horizontal positioned, and the location of wireless router is gone to the bottom of coal spout, and half is put into coal spout
Coal, so that it is covered the launch hole at wireless router, about 0.25 meter of the coal seam thickness of launch hole to coal spout centerline is seen
The WLAN signal on mobile phone is examined, there are three lattice for display；Therefore, four lattice of WLAN signal can represent in coal spout without coal or close to nothing
Coal, a lattice or no signal can represent full coal, and three lattice can represent the coal of semicanal or so.Under normal circumstances, since coal is by weight
The influence of power falls under automatic as long as coal is arranged at top and piles with coal spout in coal spout, is to be full of coal always in coal spout,
Once underfill coal then illustrates the coal that will break, WLAN signal can be greater than to two lattice as the threshold value of coal cutting off alarm, as long as that is, not
Full of coal, then alarm is issued, prompting personnel pay attention to and take measures.In detection process, the metal outside wireless router is opened
No matter whether shielding box expire coal in coal spout, and the WLAN signal on mobile phone shows four lattice, illustrates that WLAN signal passes through coal breakage
On the air borne to mobile phone of tube outside, therefore, metal shielding box is to realize that detection function of the present invention is essential
Device.The threshold value of radio wave reception strength signal can be determined by test of many times.In the wireless of radio-transmitting apparatus
When wave transmission intensity value does not show or do not set the intensity detecting device of transmitted wave, it can also be fallen by test of many times determination
Coal break coal when radio wave reception numerical value be set as radio wave break coal threshold value.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
It is above-mentioned although specific embodiments of the present invention are described with reference to the accompanying drawings, but it is not practical new to this
The limitation of type protection scope, those skilled in the art should understand that, based on the technical solution of the present invention, ability
Field technique personnel do not need to make the creative labor the various modifications or changes that can be made still in the protection model of the utility model
Within enclosing.
Claims (10)
- The coal prior-warning device 1. coal chute of coal feeder breaks characterized by comprising radio-transmitting apparatus, radio wave reception Radio wave transmission hole and detection hole, the radio wave hair is arranged in device, radio wave shield device on the coal spout Injection device connects radio wave transmission hole and is used for coal breakage pipe pre-support radio wave, and wireless radio wave receiver connects radio Wave detection hole is used to detect the electric field strength of the radio wave in coal spout, and the radio wave shield device is arranged in radio The outside of wave transmitting device, wireless radio wave receiver and coal spout.
- The coal prior-warning device 2. coal chute of coal feeder as described in claim 1 breaks, which is characterized in that further include: controller, display Device and alarm, the controller connection wireless radio wave receiver, display and alarm.
- The coal prior-warning device 3. coal chute of coal feeder as described in claim 1 breaks, it is characterised in that: it further include sealing device, it is close Encapsulation is set to nonmetallic materials, and the sealing device is for sealing radio wave transmission hole or/and radio wave detection hole.
- The coal prior-warning device 4. coal chute of coal feeder as claimed in claim 3 breaks, it is characterised in that: the sealing device is sealing Plug, is arranged in radio wave transmission hole or/and the hole of radio wave detection hole.
- The coal prior-warning device 5. coal chute of coal feeder as claimed in claim 3 breaks, it is characterised in that: the sealing device is sealing Piece is arranged in outside radio wave transmission hole or/and the hole of radio wave detection hole.
- The coal prior-warning device 6. coal chute of coal feeder as claimed in claim 5 breaks, it is characterised in that: the diaphragm seal passes through non-gold Belong to protection gasket to be fixed on the tube wall on the outside of coal chute of coal feeder.
- The coal prior-warning device 7. coal chute of coal feeder as described in claim 1 breaks, it is characterised in that: the radio wave transmission dress It is set to wireless router or for wireless aps, the wireless radio wave receiver is RSSI detector.
- The coal prior-warning device 8. coal chute of coal feeder as claimed in claim 2 breaks, it is characterised in that: further include setting it is described to The air bubble and/or mechanical shaking device of the run coal bin of coal machine, the controller and air bubble and/or mechanical shaking device connect It connects.
- The coal prior-warning device 9. coal chute of coal feeder as described in claim 1 breaks, it is characterised in that: the radio wave transmission dress It sets setting with wireless radio wave receiver and is more than or equal to two groups, every group of radio-transmitting apparatus and wireless radio wave receiver The section for being oppositely arranged on coal spout it is same diametrically.
- The coal early warning system 10. coal chute of coal feeder breaks, it is characterised in that: including the described in any item feeders of claim 1-9 Coal spout breaks coal prior-warning device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821285964.5U CN208699921U (en) | 2018-08-09 | 2018-08-09 | The disconnected coal prior-warning device of coal chute of coal feeder and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821285964.5U CN208699921U (en) | 2018-08-09 | 2018-08-09 | The disconnected coal prior-warning device of coal chute of coal feeder and system |
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| Publication Number | Publication Date |
|---|---|
| CN208699921U true CN208699921U (en) | 2019-04-05 |
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ID=65941996
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821285964.5U Active CN208699921U (en) | 2018-08-09 | 2018-08-09 | The disconnected coal prior-warning device of coal chute of coal feeder and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110420744A (en) * | 2019-08-30 | 2019-11-08 | 国家能源(山东)工程技术有限公司 | A kind of double inlet and outlet coal mill coal feeding pipe coal-blocking-proof device of coal and coal-grinding apparatus |
-
2018
- 2018-08-09 CN CN201821285964.5U patent/CN208699921U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110420744A (en) * | 2019-08-30 | 2019-11-08 | 国家能源(山东)工程技术有限公司 | A kind of double inlet and outlet coal mill coal feeding pipe coal-blocking-proof device of coal and coal-grinding apparatus |
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