CN207036232U - One kind digitlization dynamic electron Gravimetric Coal Feeders metering system - Google Patents
One kind digitlization dynamic electron Gravimetric Coal Feeders metering system Download PDFInfo
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- CN207036232U CN207036232U CN201720977319.9U CN201720977319U CN207036232U CN 207036232 U CN207036232 U CN 207036232U CN 201720977319 U CN201720977319 U CN 201720977319U CN 207036232 U CN207036232 U CN 207036232U
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Abstract
A kind of digitlization dynamic electron Gravimetric Coal Feeders metering system is the utility model is related to, belongs to belt and is fed delivery measurement system technical field to coal.Including metering carrying roller, digital weighing sensor, speed measuring drum, digital speed sensor, cable and digital weighing controller；The utility model uses digital weighing controller, it is ensured that the signal handling capacity and operational precision of weighing controller, system accuracy≤± 0.5%；Using digital transducer, signal transmission is accurate, strong antijamming capability, long transmission distance, directly data signal caused by digital weighing sensor and digital velocity sensor is accurately and quickly transferred on the CPU of digital weighing controller；Digital weighing controller on-line checking is weighed and the quality of velocity sensor and sends alarm signal, so as to remind operating personnel's more emat sensor in time, ensure weighing system can discovery sensor in time running status.
Description
Technical field
A kind of digitlization dynamic electron Gravimetric Coal Feeders metering system is the utility model is related to, it is defeated to coal feed to belong to belt
Send metering system technical field.
Background technology
The weighing sensor and velocity transducer output signal of the metering system of power plant stokehold electronic-weighing feeder at present
It is analog signal, analog signal itself poor anti jamming capability, transmission precision is poor, transmission range is near, analog weighing controller
The quality of sensor can not be detected, it is impossible to correctly reflect coal-supplying amount, it is impossible to the running status of timely discovery sensor, so as to make
Slow in reacting big with system accuracy error into sensor operation troubles, when quantitatively throwing coal, response speed is slow, has influence on turbine negative
The setting of lotus, make output electricity unstable, influence to a certain extent is caused to production.
The content of the invention
Part in order to overcome the above-mentioned deficiencies of the prior art, the utility model provide a kind of digitlization dynamic electron weigh to
The metering system of coal machine, solves weighing control system unstable, the data transfer that in running measuring accuracy occurs well
Poor anti jamming capability, the problem of error is larger, dynamic characteristic is undesirable, improve the control accuracy and reliability of system.
The utility model is achieved by the following technical solution：One kind digitlization dynamic electron Gravimetric Coal Feeders metering system
System, it is characterised in that：Including metering carrying roller, digital weighing sensor, speed measuring drum, digital speed sensor, cable and
Digital weighing controller；Weight of material on described metering carrying roller detection belt conveyor, by leverage in digital
Weighing sensor, produces a voltage signal for being proportional to belt load, and described voltage signal is converted into digital output and arrived
Digital weighing controller；The digital speed sensor is arranged on the axle of speed measuring drum, exports a series of pulses, each
Pulse represents a belt movement unit, and the frequency of pulse is proportional to belt speed, and pulse signal is converted into number amount and is output to
Digital weighing controller；Described digital weighing controller draws instantaneous delivery value and accumulating weight by integral operation
Value, and show respectively, digital weighing controller as needed is by digital data transmission to host computer and each data acquisition mouth.
Further, described metering carrying roller is arranged on digital weighing sensor, measures first of carrying roller than both sides
Group high 3mm to the 5mm of conveying carrier roller, the distance of metering carrying roller to first group of conveying carrier roller of both sides is equal, and metering carrying roller is close to
On belt conveyor lower surface, described belt conveyor is in tensioner state all the time in course of conveying.
Further, described digital weighing sensor is arranged in conveying frame；Described digital weighing and sensing
Device is dimerous by sensing element unit and digitlization modular converter；Described digitlization modular converter include amplifier,
A/D converters, microprocessor, memory, interface RS485 and digital temperature sensor.
Further, described speed measuring drum is arranged in conveying frame, and speed measuring drum is tight in the inner surface of transportation rubber belt
Contiguity is touched and forms cornerite.
Further, described digital speed sensor uses axle sleeve type structure, and its rotating part inner sleeve is directly set with
On the main shaft of speed measuring drum, non-rotating part is fixed on the protective cover of tachogenerator.
Further, described digital speed sensor including photoimpact formula test the speed unit and A/D numeral conversion electricity
Road.
Further, described cable uses RVVP shielded cables, is weighed for digital weighing sensor with digital
The connection between connection and digital velocity sensor and digital weighing controller between controller.
Further, described digital weighing controller is by amplifier, comparator, A/D converters, microprocessor, I/
OUT output units, global enumeration output unit, volume measurement output unit, alarm output unit, display unit, operation lamp group
Display unit, setting keyboard composition；Described microprocessor is single with comparator output terminal, A/D converters, I/OUT outputs respectively
Member, global enumeration output unit, volume measurement output unit, alarm output unit, display unit, operation lamp group display unit,
Setting keyboard is connected；Described amplifier out is connected with A/D converters；Described amplifier in and digital title
Retransmit sensor to be connected, described comparator input terminal is connected with digital speed sensor.
The beneficial effects of the utility model are：The utility model uses digital weighing controller, it is ensured that at signal
Reason ability and operational precision, A/D signal processing technologies ensure system accuracy≤± 0.5%；Using digital transducer, signal passes
It is defeated accurate, strong antijamming capability, long transmission distance, directly caused by digital weighing sensor and digital velocity sensor
Data signal is accurately and quickly transferred on the CPU of digital weighing controller；Digital weighing controller on-line checking is weighed
With the quality of velocity sensor and send alarm signal, so as to remind operating personnel's more emat sensor in time, ensure weighing system
The running status of the timely discovery sensor of energy；Digital weighing controller is transferred to volume measurement functional mode automatically, and then ensures
System normal operation simultaneously sends alarm maintenance signal, ensures weighing system not shadow in the case where weighing or velocity sensor damaging
The normal operation of acoustic system.
Brief description of the drawings
The utility model is further illustrated below according to drawings and examples.
Fig. 1 is theory diagram of the present utility model；
Fig. 2 is structural representation of the present utility model.
In figure：1st, carrying roller is measured, 2, digital weighing sensor, 3, speed measuring drum, 4, digital speed sensor, 5, electricity
Cable, 6, digital weighing controller, 7, belt conveyor, 8, conveying frame, 9, first groups of conveying carrier rollers, 10, motor, 11,
Feeder body.
Embodiment
A kind of digitlization dynamic electron Gravimetric Coal Feeders metering system as depicted in figs. 1 and 2, it is characterised in that：Including
Measure carrying roller 1, digital weighing sensor 2, speed measuring drum 3, digital speed sensor 4, cable 5 and digital Weighing control
Device 6；Described metering carrying roller 1 detects the weight of material on belt conveyor 7, by leverage in digital weighing sensor 2,
A voltage signal for being proportional to belt load is produced, described voltage signal is converted into digital output to digital control of weighing
Device 6 processed；The digital speed sensor 4 is arranged on the axle of speed measuring drum 3, exports a series of pulses, and each pulse represents
One belt movement unit, the frequency of pulse are proportional to belt speed, and pulse signal is converted into number amount and is output to digital title
Weight controller 6；Described digital weighing controller 6 draws instantaneous delivery value and accumulating weight value by integral operation, and divides
Do not show, digital weighing controller 6 as needed is by digital data transmission to host computer and each data acquisition mouth.
Described metering carrying roller 1 is arranged on digital weighing sensor 2, first group conveying of the metering carrying roller 1 than both sides
9 high 3mm to 5mm of carrying roller, the distance of first group of conveying carrier roller 9 of metering carrying roller 1 to both sides is equal, and metering carrying roller 1 is close to defeated
Send on the lower surface of belt 7, described belt conveyor 7 is in tensioner state all the time in course of conveying.
Described digital weighing sensor 2 is arranged in conveying frame 8；Described digital weighing sensor 2 is by quick
Sensing unit unit and digitlization modular converter are dimerous；Described digitlization modular converter includes amplifier, A/D turns
Parallel operation, microprocessor CPU, memory, interface RS485 and digital temperature sensor.
Described speed measuring drum 3 is arranged in conveying frame 8, and speed measuring drum 3 is in close contact in the inner surface of transportation rubber belt
Form cornerite.
Described digital speed sensor 4 uses axle sleeve type structure, and its rotating part inner sleeve is directly sleeved on rolling of testing the speed
On the main shaft of cylinder 3, non-rotating part is fixed on the protective cover of tachogenerator.
Described digital speed sensor 4 tests the speed unit and A/D digital conversion circuits including photoimpact formula.
Described cable 5 uses RVVP shielded cables, for digital weighing sensor 2 and digital weighing controller 6
Between connection and digital velocity sensor 4 and digital weighing controller 6 between connection.
Described digital weighing controller 6 is exported by amplifier, comparator, A/D converters, microprocessor, I/OUT
Unit, global enumeration output unit, volume measurement output unit, alarm output unit, display unit, the group display of operation lamp are single
Member, setting keyboard composition；Described microprocessor respectively with comparator output terminal, A/D converters, I/OUT output units, remote
Journey counts output unit, volume measurement output unit, alarm output unit, display unit, operation lamp group display unit, setting key
Disk is connected；Described amplifier out is connected with A/D converters；Described amplifier in and digital weighing and sensing
Device 2 is connected, and described comparator input terminal is connected with digital speed sensor 4.
Described digital weighing sensor 6 is arranged in the conveying frame 8 of feeder body 11, and metering carrying roller 1 assembles
On digital weighing sensor 2, metering carrying roller 1 is close to the underface of the belt conveyor 7 of tensioner, ensures that metering carrying roller 1 compares
First group of both sides conveying carrier roller 9 high 3 arrives 5mm；Speed measuring drum 3 is installed and the head of feeder body 11 or afterbody；Digital speed
The rotating part of sensor 4 is arranged on the main shaft of speed measuring drum 3, and its non-rotating part is fixed on the protective cover of velocity sensor
On；Digital weighing controller 6 is arranged in feeder field control cabinet, it is desirable to shockproof, dust-proof, moistureproof；Digital biography of weighing
Sensor 2 and digital velocity sensor 4 are connected with RVVP shielded cables 5 with digital weighing controller 6, RVVP shielded cables 5
Separately individually laid with power cable；Speed measuring drum 3 is arranged in conveying frame 8, positioned at the afterbody or head of feeder body 11
Portion, speed measuring drum 3 should be in close contact to form certain cornerite in the inner surface of transportation rubber belt 7, and born of the same parents Jiao Chu is wanted on the surface of speed measuring drum 3
Reason, is prevented from skidding with transportation rubber belt 7 in course of conveying, and fast phenomenon is lost in generation；Motor 11 makes drive roll rotate drive
Belt conveyor 7 conveys material with certain speed.
Described metering carrying roller 1 detects the weight of material on belt conveyor 7, by leverage in digital biography of weighing
On sensor 2, the sensing element of digital weighing sensor 2 produces deformation under the operation of gravity, and sensing element turns deflection
Change the electric signal for being proportional to material gravity into, send A/D converter to become digital quantity A after amplifier enhanced processing, through RVVP screens
Cover cable 5 and be sent to digital weighing controller 6；Speed measuring drum 3 keeps synchronous with belt conveyor 7, and digital speed senses
Device 4 is sleeved on the main shaft of speed measuring drum 3, and digital speed sensor 4 detects the speed of belt conveyor 7, velocity sensor
The interior lights electroosmotic pulse unit that tests the speed provides a series of pulses, and each pulse represents a moving cell of belt conveyor 7, pulse
Frequency is proportional to the speed of belt conveyor 7, and the change of pulse signal is input in the control circuit of velocity sensor, amplified, ratio
Compared with carrying out counting the pulse signal for producing respective frequencies after, shaping, pulse signal send A/D converter to become digital quantity B outputs, warp
RVVP shielded cables 5 are sent to digital weighing controller 6；Digital weighing controller 6 carries out computing to two kinds of signals of A, B
Afterwards, that is, the inventory of this measurement period is obtained, each measurement period is added up, you can obtain what is continued through on belt
Material total amount.
Claims (8)
1. one kind digitlization dynamic electron Gravimetric Coal Feeders metering system, it is characterised in that：Including measuring carrying roller（1）, it is digital
Weighing sensor（2）, speed measuring drum（3）, digital speed sensor（4）, cable（5）With digital weighing controller（6）；Institute
The metering carrying roller stated（1）Detect belt conveyor（7）On weight of material, by leverage in digital weighing sensor（2）,
A voltage signal for being proportional to belt load is produced, described voltage signal is converted into digital output to digital control of weighing
Device processed（6）；The digital speed sensor（4）Installed in speed measuring drum（3）Axle on, export a series of pulses, each arteries and veins
Punching represents a belt movement unit, and the frequency of pulse is proportional to belt speed, and pulse signal is converted into number amount and is output to number
Word formula weighing controller（6）；Described digital weighing controller（6）Instantaneous delivery value and accumulation weight are drawn by integral operation
Value, and show respectively, digital weighing controller as needed（6）By digital data transmission to host computer and each data acquisition
Mouthful.
A kind of 2. digitlization dynamic electron Gravimetric Coal Feeders metering system according to claim 1, it is characterised in that：It is described
Metering carrying roller（1）Installed in digital weighing sensor（2）On, measure carrying roller（1）Than first group of conveying carrier roller of both sides（9）
High 3mm to 5mm, measure carrying roller（1）To first group of conveying carrier roller of both sides（9）Distance it is equal, measure carrying roller（1）It is close to defeated
Send belt（7）On lower surface, described belt conveyor（7）It is in tensioner state all the time in course of conveying.
A kind of 3. digitlization dynamic electron Gravimetric Coal Feeders metering system according to claim 1, it is characterised in that：It is described
Digital weighing sensor（2）Installed in conveying frame（8）On；Described digital weighing sensor（2）By sensing element
Unit and digitlization modular converter are dimerous；Described digitlization modular converter includes amplifier, A/D converters, micro-
Processor（CPU）, memory, interface RS485 and digital temperature sensor.
A kind of 4. digitlization dynamic electron Gravimetric Coal Feeders metering system according to claim 1, it is characterised in that：It is described
Speed measuring drum（3）Installed in conveying frame（8）On, speed measuring drum（3）It is in close contact to form bag in the inner surface of transportation rubber belt
Angle.
A kind of 5. digitlization dynamic electron Gravimetric Coal Feeders metering system according to claim 1, it is characterised in that：It is described
Digital speed sensor（4）Using axle sleeve type structure, its rotating part inner sleeve is directly sleeved on speed measuring drum（3）Main shaft
On, non-rotating part is fixed on the protective cover of tachogenerator.
A kind of 6. digitlization dynamic electron Gravimetric Coal Feeders metering system according to claim 1, it is characterised in that：It is described
Digital speed sensor（4）Tested the speed unit and A/D digital conversion circuits including photoimpact formula.
A kind of 7. digitlization dynamic electron Gravimetric Coal Feeders metering system according to claim 1, it is characterised in that：It is described
Cable（5）Using RVVP shielded cables, for digital weighing sensor（2）With digital weighing controller（6）Between
Connection and digital velocity sensor（4）With digital weighing controller（6）Between connection.
A kind of 8. digitlization dynamic electron Gravimetric Coal Feeders metering system according to claim 1, it is characterised in that：It is described
Digital weighing controller（6）By amplifier, comparator, A/D converters, microprocessor, I/OUT output units, long-range meter
Number output unit, volume measurement output unit, alarm output unit, display unit, operation lamp group display unit, setting keyboard group
Into；Described microprocessor is single with comparator output terminal, A/D converters, I/OUT output units, global enumeration output respectively
Member, volume measurement output unit, alarm output unit, display unit, operation lamp group display unit, setting keyboard are connected；It is described
Amplifier out be connected with A/D converters；Described amplifier in and digital weighing sensor（2）It is connected, institute
The comparator input terminal stated and digital speed sensor（4）It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720977319.9U CN207036232U (en) | 2017-08-07 | 2017-08-07 | One kind digitlization dynamic electron Gravimetric Coal Feeders metering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720977319.9U CN207036232U (en) | 2017-08-07 | 2017-08-07 | One kind digitlization dynamic electron Gravimetric Coal Feeders metering system |
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| Publication Number | Publication Date |
|---|---|
| CN207036232U true CN207036232U (en) | 2018-02-23 |
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ID=61474535
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720977319.9U Active CN207036232U (en) | 2017-08-07 | 2017-08-07 | One kind digitlization dynamic electron Gravimetric Coal Feeders metering system |
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| CN (1) | CN207036232U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114560261A (en) * | 2022-02-21 | 2022-05-31 | 山东科技大学 | Transfer point chute blockage detection system based on dynamic material metering |
| CN114890051A (en) * | 2022-05-25 | 2022-08-12 | 广东韶钢松山股份有限公司 | Belt conveyor blocking detection system and method |
-
2017
- 2017-08-07 CN CN201720977319.9U patent/CN207036232U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114560261A (en) * | 2022-02-21 | 2022-05-31 | 山东科技大学 | Transfer point chute blockage detection system based on dynamic material metering |
| WO2023155598A1 (en) * | 2022-02-21 | 2023-08-24 | 山东科技大学 | Transfer point chute blockage detection system based on dynamic material measurement |
| CN114890051A (en) * | 2022-05-25 | 2022-08-12 | 广东韶钢松山股份有限公司 | Belt conveyor blocking detection system and method |
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