CN107840115A - A kind of coal charge charging gear and delivery rate control method - Google Patents
A kind of coal charge charging gear and delivery rate control method Download PDFInfo
- Publication number
- CN107840115A CN107840115A CN201711147745.0A CN201711147745A CN107840115A CN 107840115 A CN107840115 A CN 107840115A CN 201711147745 A CN201711147745 A CN 201711147745A CN 107840115 A CN107840115 A CN 107840115A
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- Prior art keywords
- delivery rate
- coal charge
- charging gear
- gross mass
- weighing sensor
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- 239000003245 coal Substances 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000005303 weighing Methods 0.000 claims abstract description 29
- 238000005070 sampling Methods 0.000 claims description 22
- 230000002159 abnormal effect Effects 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 230000033228 biological regulation Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000003672 processing method Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
- B65G43/08—Control devices operated by article or material being fed, conveyed or discharged
Landscapes
- Weight Measurement For Supplying Or Discharging Of Specified Amounts Of Material (AREA)
Abstract
The invention discloses a kind of coal charge charging gear and delivery rate control method, device includes charging gear body, and the charging gear body is used to load coal charge, and coal charge is delivered into target location by feeding device, it is characterised in that：Also include weighing sensor and control module；The charging gear is arranged on support member by the weighing sensor；The weighing sensor is used to monitor the gross mass for obtaining the charging gear and coal charge；The control module is used to determine actual delivery rate according to the change of the gross mass, and is directed to default target delivery rate, using the actual delivery rate as closed loop feedback, adjusts the delivery rate of the feeding device.With simple in construction, good reliability, the advantages that accurately controlling delivery rate.
Description
Technical field
The present invention relates to coal charge processing technology field, more particularly to a kind of coal charge charging gear and method.
Background technology
During coal charge analyzing and processing, coal charge is sampled by belt sampling prototype, during sample is gathered and processed, led to
Cross feeding device（Belt conveyor）Coal charge in hopper is transported to next processing links, crushed, the processing such as division.And show
Have in technology, typically just by controlling belt conveyor to realize more uniform feed with constant speed movement, but actually give
The speed of material is that the speed of discharge area and belt based on belt conveyor determines, is limited to granularity, density of coal charge etc.
Influence factor, discharging speed be present and do not accurately control, the problem of can not being at the uniform velocity fed.Because delivery rate is not accurate, easily
Cause chute blockage be present in the processing links to coal charge next step.And in the prior art by belt conveyor uniform motion carry out to
Material, can not automatic decision belt conveyor the exception of chute blockage whether occurs, be unfavorable for gathering and processing the fully automatic operation of link.
The content of the invention
The technical problem to be solved in the present invention is that：For technical problem existing for prior art, the present invention provides one
Simple in construction, the good reliability of kind, accurately control the coal charge charging gear and method of delivery rate.
In order to solve the above technical problems, technical scheme proposed by the present invention is：A kind of coal charge charging gear, including feed dress
Body is put, the charging gear body is used to load coal charge, and coal charge is delivered into target location by feeding device, in addition to
Weighing sensor and control module；
The charging gear is arranged on support member by the weighing sensor；
The weighing sensor is used to monitor the gross mass for obtaining the charging gear and coal charge；
The control module is used to determine actual delivery rate according to the change of the gross mass, and is fed for default target
Speed, using the actual delivery rate as closed loop feedback, adjust the delivery rate of the feeding device.
Further, the control module include actual delivery rate calculating sub module, feed deviation calculating sub module and
Speed adjusts submodule；
The actual delivery rate calculating sub module is used to calculate reality according to the gross mass of the weighing sensor double sampling
Delivery rate；
The feed deviation calculating sub module is used to calculate feed partially according to default target delivery rate and actual delivery rate
Difference；
The speed regulation submodule is used for according to the deviation that is fed to the feeding device transmission speed Regulate signal.
Further, in addition to filtration module, the filtration module are used to enter the sampled signal of the weighing sensor
Row filtering process.
Further, the feeding device is according to the speed Regulate signal, by adjust the output frequency of frequency converter come
Adjust the rotating speed of variable-frequency motor.
Further, in addition to abnormal judge module, the judge module are used for whether judging the actual delivery rate
Less than default threshold value, it is then to judge that feed is abnormal, otherwise judges that feed is normal.
Further, the weighing sensor is multiple.
A kind of coal charge delivery rate control method, including：S1. by the default sampling period sampling obtain charging gear and
The gross mass of coal charge, and the actual delivery rate of the mathematic interpolation coal charge according to gross mass；
S2. default target delivery rate is directed to, using the actual delivery rate as closed loop feedback, adjusts the feed dress
Put the speed of middle conveying equipment.
Further, the gross mass of acquisition is sampled in step S1, is filtered processing, to eliminate interference；At the filtering
The preferred first-order low-pass ripple of reason method.
Further, in addition to according to the difference of gross mass judge charging gear whether failure, when the difference of the gross mass
When value is less than default threshold value, judge that feed is abnormal.
Further, the default sampling period is the variable sampling cycle related to the conveying device rate, defeated
Expect that device rate is bigger, the sampling period is shorter.
Compared with prior art, the advantage of the invention is that：1st, the present invention is become by monitoring the weight of charging gear in real time
Change to determine the delivery rate of reality, and adjust the speed of feeding device in real time using actual delivery rate as feedback, can be accurate
The accurate feeding for realizing coal charge, meanwhile, according to the situation of change of weight, can accurately judge whether blocked up in feeding device
Coal is abnormal, and feed precision is high, and controllability is good, and stability is high, and security is good, and automaticity is high, can effectively improve the whole of system
Body performance.
2nd, charging gear structure of the invention, principle are simple, and cost is low, easy to implement.
Brief description of the drawings
Fig. 1 is specific embodiment of the invention structural representation.
Fig. 2 is specific embodiment of the invention modular structure schematic diagram.
Fig. 3 is specific embodiment of the invention work-based logic schematic diagram.
Fig. 4 is specific embodiment of the invention schematic flow sheet.
Marginal data：1st, material bin；2nd, discharging opening；3rd, feeding device；4th, weighing sensor；5th, support member.
Embodiment
Below in conjunction with Figure of description and specific preferred embodiment, the invention will be further described, but not therefore and
Limit the scope of the invention.
The coal charge charging gear of the present embodiment, including charging gear body, the charging gear body are used to load coal charge,
And coal charge is delivered to by target location, in addition to weighing sensor and control module by feeding device；The charging gear leads to
The weighing sensor is crossed on support member；The weighing sensor, which is used to monitor, obtains the charging gear and coal charge
Gross mass；The control module is used to determine actual delivery rate according to the change of the gross mass, and is directed to default target
Delivery rate, using the actual delivery rate as closed loop feedback, adjust the delivery rate of the feeding device.As shown in figure 1,
Charging gear body includes material bin 1, for storing coal charge.Coal charge in material bin 1 falls on feeding device 3 by discharging opening 2
Belt on, rotated by motor driven belt, the coal charge on belt be transported to next processing position.Charging gear body
Entirely through weighing sensor 4 be arranged on support member 5 on, pass through weighing sensor 4, you can measure charging gear body and its
The gross mass of middle stored coal charge.
In the present embodiment, weighing sensor is excellent according to the actual size of charging gear body, weighing sensor to be multiple
Elect 4 as, be separately mounted to the position of four pin of charging gear body, it is, of course, also possible to need increase to weigh according to implementation
The quantity of sensor, preferably it is uniformly arranged the lower section of charging gear body.One direction ensures the stabilization of structure, on the other hand protects
It is accurate to demonstrate,prove weighing results.
In the present embodiment, as shown in Fig. 2 the control module includes actual delivery rate calculating sub module, feed partially
Poor calculating sub module and speed adjust submodule；The actual delivery rate calculating sub module is used for according to the weighing sensor
The gross mass of double sampling calculates actual delivery rate；The feed deviation calculating sub module is used to be fed according to default target
Speed and actual delivery rate calculate feed deviation；Speed regulation submodule is used for according to the feed deviation to described defeated
Expect device transmission speed Regulate signal.Also include filtration module, the filtration module is used for the sampling to the weighing sensor
Signal is filtered processing.In the present embodiment, because weighing sensor is arranged on the lower section of charging gear body, and conveying
Device is in running status, and therefore, the detection data of weighing sensor are easily interfered, therefore, symmetrical by filtration module
The detection data for retransmitting sensor are filtered.Specifically, can be filtered by way of hardware or software, hardware mode is as filtered
Wave circuit.
In the present embodiment, by being summed to obtain gross mass, actual feed speed to the result of multiple weighing sensors
Degree calculating sub module determines actual delivery rate by calculating the difference of the gross mass of double sampling.It is fed deviation calculating sub module
The difference for calculating default target delivery rate and actual delivery rate obtains being fed deviation, and it is inclined to being fed that speed adjusts submodule
Difference is judged, when being fed deviation more than zero, illustrates actual delivery rate less than target delivery rate, it is necessary to improve conveying dress
The speed of service put, sent to feeding device and accelerate Regulate signal, when being fed deviation less than zero, illustrate that actual delivery rate is high
In target delivery rate, it is necessary to reduce the speed of service of feeding device, deceleration Regulate signal is sent to feeding device.In this implementation
In example, further, in order that must be unlikely to the adjustment of feeding device too frequently, and prevent during adjusting in zero point
Position produces to be vibrated back and forth, by step-up error allowed band, only when feed deviation exceeds error allowed band, is filled to conveying
Put transmission speed Regulate signal.In the present embodiment, actual delivery rate calculating sub module, feed deviation calculating sub module and speed
Degree regulation submodule can be realized by control program, can also pass through simple adder and substracter circuit, filter circuit, comparison circuit
To realize.
In the present embodiment, feeding device is adjusted using variable-frequency motor as driving power source, frequency-variable controller according to speed
Regulate signal transmitted by knot module, adjusts the output frequency of frequency converter, and control variable-frequency motor is correspondingly improved or reduced fortune
Scanning frequency degree, so as to realize the adjustment to delivery rate.
The logic control flow of the present embodiment is as shown in figure 3, pre-set target delivery rate（Target determines weight change
Speed）, with actual delivery rate（Actual weight rate of change）For feedback, both deviations are calculated, by deviation come really
Determine the VFC of variable-frequency motor, adjust the rotating speed of variable-frequency motor, i.e. feeding belt（Feeding device）Speed, realize feed speed
The regulation of degree.By using actual delivery rate as closed loop feedback, it is possible to achieve to the accurate adjustment of delivery rate.
In the present embodiment, in addition to abnormal judge module, the judge module are used to judge the actual delivery rate
Whether it is less than default threshold value, is then to judge that feed is abnormal, otherwise judges that feed is normal.It is pre- when being less than for actual delivery rate
If threshold value when, illustrate that the blanking of discharging opening 2 is abnormal, there occurs the blocking of coal charge.It is abnormal to judge when occurring to be fed abnormal
Module control alarm module sends abnormality alarm.Alarm module is alarm lamp and/or voice guard.
As shown in figure 4, the coal charge delivery rate control method of the present embodiment, including：S1. adopted by the default sampling period
Sample obtains the gross mass of charging gear and coal charge, and the actual delivery rate of the mathematic interpolation coal charge according to gross mass；S2. pin
To default target delivery rate, using the actual delivery rate as closed loop feedback, adjust conveying in the charging gear and set
Standby speed.
In the present embodiment, the gross mass of acquisition is sampled in step S1, is filtered processing, to eliminate interference；The filter
The preferred first-order low-pass ripple of ripple processing method.Also include according to the difference of gross mass judge charging gear whether failure, when described
When the difference of gross mass is less than default threshold value, judge that feed is abnormal.The default sampling period be and the conveying equipment
In the variable sampling cycle of velocity correlation, conveying device rate is bigger, and the sampling period is shorter.Conveying device rate is bigger, illustrates
The unit interval coal charge of conveying is also more, in order to ensure the precision for monitoring, controlling, the present embodiment by the variable sampling period,
Shorten the cycle of sampling, improve sample frequency, so as to the situation of change of more accurate monitoring coal charge, with timely, accurate progress
The control of delivery rate.
Above-mentioned simply presently preferred embodiments of the present invention, not makees any formal limitation to the present invention.It is although of the invention
It is disclosed above with preferred embodiment, but it is not limited to the present invention.Therefore, it is every without departing from technical solution of the present invention
Content, according to the technology of the present invention essence to any simple modifications, equivalents, and modifications made for any of the above embodiments, it all should fall
In the range of technical solution of the present invention protection.
Claims (10)
1. a kind of coal charge charging gear, including charging gear body, the charging gear body is used to load coal charge, and by defeated
Coal charge is delivered to target location by material device, it is characterised in that：Also include weighing sensor and control module；
The charging gear is arranged on support member by the weighing sensor；
The weighing sensor is used to monitor the gross mass for obtaining the charging gear and coal charge；
The control module is used to determine actual delivery rate according to the change of the gross mass, and is fed for default target
Speed, using the actual delivery rate as closed loop feedback, adjust the delivery rate of the feeding device.
2. coal charge charging gear according to claim 1, it is characterised in that：The control module includes actual delivery rate
Calculating sub module, feed deviation calculating sub module and speed regulation submodule；
The actual delivery rate calculating sub module is used to calculate reality according to the gross mass of the weighing sensor double sampling
Delivery rate；
The feed deviation calculating sub module is used to calculate feed partially according to default target delivery rate and actual delivery rate
Difference；
The speed regulation submodule is used for according to the deviation that is fed to the feeding device transmission speed Regulate signal.
3. coal charge charging gear according to claim 2, it is characterised in that：Also include filtration module, the filtration module
For being filtered processing to the sampled signal of the weighing sensor.
4. coal charge charging gear according to claim 3, it is characterised in that：The feeding device is adjusted according to the speed
Signal, the rotating speed of variable-frequency motor is adjusted by adjusting the output frequency of frequency converter.
5. coal charge charging gear according to claim 4, it is characterised in that：Also include abnormal judge module, the judgement
Module be used for judge whether the actual delivery rate is less than default threshold value, be then judge feed extremely, otherwise judge to
Material is normal.
6. the coal charge charging gear according to claim 1 to 5, it is characterised in that：The weighing sensor is multiple.
A kind of 7. coal charge delivery rate control method, it is characterised in that：
S1. the gross mass of charging gear and coal charge is obtained by the sampling of default sampling period, and according to the mathematic interpolation of gross mass
The actual delivery rate of coal charge；
S2. default target delivery rate is directed to, using the actual delivery rate as closed loop feedback, adjusts the feed dress
Put the speed of middle conveying equipment.
8. coal charge delivery rate control method according to claim 7, it is characterised in that：The total of acquisition is sampled in step S1
Quality, processing is filtered, to eliminate interference；The preferred first-order low-pass ripple of filter processing method.
9. coal charge delivery rate control method according to claim 8, it is characterised in that：Also include the difference according to gross mass
Value judge charging gear whether failure, when the difference of the gross mass is less than default threshold value, judge be fed extremely.
10. the coal charge delivery rate control method according to any one of claim 7 to 9, it is characterised in that：It is described default
Sampling period is the variable sampling cycle related to the conveying device rate, and conveying device rate is bigger, and the sampling period is shorter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711147745.0A CN107840115A (en) | 2017-11-17 | 2017-11-17 | A kind of coal charge charging gear and delivery rate control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711147745.0A CN107840115A (en) | 2017-11-17 | 2017-11-17 | A kind of coal charge charging gear and delivery rate control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107840115A true CN107840115A (en) | 2018-03-27 |
Family
ID=61678867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711147745.0A Pending CN107840115A (en) | 2017-11-17 | 2017-11-17 | A kind of coal charge charging gear and delivery rate control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107840115A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112009998A (en) * | 2019-05-29 | 2020-12-01 | 天津中新智冠信息技术有限公司 | Coal blending device and system applied to industrial production |
| CN112076024A (en) * | 2020-09-22 | 2020-12-15 | 福建恒安集团有限公司 | Online weighing and wood pulp feeding closed-loop control method for disposable hygienic product production line |
| CN112808351A (en) * | 2020-12-30 | 2021-05-18 | 衡阳市金雁粮食购销有限公司 | Deep processing method of rice |
| CN114538124A (en) * | 2022-03-22 | 2022-05-27 | 乌海市榕鑫能源实业有限责任公司 | Intelligent coal blending process based on multifunctional weighing display controller |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112009998A (en) * | 2019-05-29 | 2020-12-01 | 天津中新智冠信息技术有限公司 | Coal blending device and system applied to industrial production |
| CN112009998B (en) * | 2019-05-29 | 2022-05-17 | 天津中新智冠信息技术有限公司 | Coal blending device and system applied to industrial production |
| CN112076024A (en) * | 2020-09-22 | 2020-12-15 | 福建恒安集团有限公司 | Online weighing and wood pulp feeding closed-loop control method for disposable hygienic product production line |
| CN112076024B (en) * | 2020-09-22 | 2022-03-25 | 福建恒安集团有限公司 | Online weighing and wood pulp feeding closed-loop control method for disposable hygienic product production line |
| CN112808351A (en) * | 2020-12-30 | 2021-05-18 | 衡阳市金雁粮食购销有限公司 | Deep processing method of rice |
| CN114538124A (en) * | 2022-03-22 | 2022-05-27 | 乌海市榕鑫能源实业有限责任公司 | Intelligent coal blending process based on multifunctional weighing display controller |
| CN114538124B (en) * | 2022-03-22 | 2023-01-03 | 乌海市榕鑫能源实业有限责任公司 | Intelligent coal blending process based on multifunctional weighing display controller |
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Application publication date: 20180327 |