CN103900676A - Method for monitoring durability of electronic belt scale - Google Patents
Method for monitoring durability of electronic belt scale Download PDFInfo
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- CN103900676A CN103900676A CN201410139707.0A CN201410139707A CN103900676A CN 103900676 A CN103900676 A CN 103900676A CN 201410139707 A CN201410139707 A CN 201410139707A CN 103900676 A CN103900676 A CN 103900676A
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Abstract
The invention discloses a method for monitoring durability of an electronic belt scale. The characteristic that the tension of a belt on the tail of a belt conveyor is small, and the tension of a belt along the position close to the head direction of the belt conveyor is larger is utilized, two sets of independent weighing loaders are arranged, due to the fact that the arranged weighing loaders are arranged at the different positions of the belt conveyor, when the same materials pass through the weighing loaders, the influences of the tension of the belt on the detected material weight are different, and therefore the weight difference value of weighing materials of the two sets of weighing loaders can be obtained. The weight difference value is compared with the weight difference value obtained in the correcting process in real time, if the value exceeds a certain error, the external environment, such as hardness and tension, of the belt is changed, the range calibration number of a belt scale instrument is corrected in time, and the accurate metering is ensured.
Description
Technical field
The present invention relates to a kind of belted electronic balance permanance monitoring method, belong to Dynamic Weighting technical field.
Background technology
Belted electronic balance measuring accuracy poor durability is to affect for many years the main cause that belt conveyer scale weighing precision is not high, the weighing principle of work of belt conveyer scale is claimed material to weigh through the belt on band conveyor again, the level of tightness of belt, the pliability of belt directly affect weighing result, because the soft durometer of the belt tension on each band conveyor, belt self is all different, especially belt soft durometer is changed by the impact of ambient temperature, and these factors cause belt scale metering accuracy lasting poor.What at present present technology addressed this problem employing is regularly to carry out material calibration or analog calibration, owing to being that periodic calibration can not be adjusted measurement deviation in time, causes measuring accuracy poor, and the material carrying out calibrates or analog calibration is consuming time, inconvenient, cost is high.
Summary of the invention
The problem existing for above-mentioned prior art, the invention provides a kind of belted electronic balance permanance monitoring method, take into full account the situation of the soft durometer of belt tension and belt self, in the time that belt tension or belt soft durometer change, can adjust in time calibration, ensure measuring accuracy.
To achieve these goals, concrete steps of the present invention are:
A, two groups of independent front weighing load carrier 4 and rear weighing load carriers 1 that weigh are installed on band conveyor, belt conveyer scale instrument 8 detects respectively by the gravimetric value of two groups of identical materials of weighing load carrier, the range calibration number that the front weighing load carrier 4 while calculating and record calibration under corresponding mass flow obtains when weighing the weight difference of identical material and calibrate with rear weighing load carrier 1;
B, in the time of the normal convey materials of band conveyor, belt conveyer scale instrument 8 detects front weighing load carrier 4 and rear weighing load carrier 1 under corresponding mass flow and detects the weight difference of identical material in real time, and this weight difference and the weight difference in when calibration are compared, judge whether weight difference goes beyond the scope; As exceed error note belt soft durometer, belt tension changes;
If the weight difference of C material is overproof, belt conveyer scale instrument 8 is calculated overproof ratio, the range calibration number obtaining while calibration with overproof ratio correction, and revised range calibration number is for the normal metering of belt conveyer scale.
The mounting arrangements of weighing load carrier is that front weighing load carrier is connected with rear weighing load carrier, or between front weighing load carrier and rear weighing load carrier every rear A or front A weighing load carrier, or between front weighing load carrier and rear weighing load carrier every support idler roller 5.
Reduce variation of ambient temperature and should select the LOAD CELLS to temperature compensation or temperature detection sensor is housed the impact of LOAD CELLS in order to improve measuring accuracy, detected temperatures changes in time to LOAD CELLS self-compensation situation in real time.Belt conveyer scale instrument can be replaced with personal computer.
Compared with prior art, the belt conveyer scale of the weighing load carrier structure that the present invention's employing at least two groups can independently be measured separately, utilize belt conveyor tail position belt tension little, more along the larger characteristic of position belt tension that approaches belt conveyer head direction, because the weighing load carrier of installing is in band conveyor position difference, identical material be subject to during by weighing load carrier belt tension to affect its weight of material detecting also just different, present the weight of material value that tail position detects large, more less along approaching the weight of material value that belt conveyer head direction position probing arrives, obtain thus the weight difference that two groups of weighing load carriers weigh material, the reacting condition of weight of material difference belt soft durometer, belt tension changes the impact on weighing, in the time that belt soft durometer or belt tension change, can adjust in time calibration, ensure measuring accuracy.
Brief description of the drawings
Fig. 1 is the connected Weighing system schematic diagram of weighing load carrier in the present invention;
Fig. 2 is the weighing load carrier Weighing system schematic diagram of being separated by the present invention.
In figure: 1, rear weighing load carrier, 2, rear A weighing load carrier, 3, front A weighing load carrier, 4, front weighing load carrier, 5, support idler roller, 6, conveyor head, 7, LOAD CELLS, 8, belt conveyer scale instrument, 9, tachogenerator, 10, conveyor afterbody, 11, temperature sensor.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As depicted in figs. 1 and 2, a kind of belted electronic balance accuracy lasting monitoring device, comprise rear weighing load carrier 1, rear A weighing load carrier 2, front A weighing load carrier 3, front weighing load carrier 4, LOAD CELLS 7, belt conveyer scale instrument 8, tachogenerator 9 and temperature sensor 11, front weighing load carrier 4 is contained in support idler roller 5 bottoms near conveyor head 6, rear weighing load carrier 1 is contained in support idler roller 5 bottoms near conveyor afterbody 10, front A weighing load carrier 3 and rear A weighing load carrier 2 are contained between front weighing load carrier 4 and rear weighing load carrier 1, rear weighing load carrier 1, rear A weighing load carrier 2, front A weighing load carrier 3 is connected with belt conveyer scale instrument 8 by LOAD CELLS 7 with front weighing load carrier 4, belt conveyer scale instrument 8 is connected 11 with tachogenerator 9 and temperature sensor respectively.
Concrete steps of the present invention are:
A1, the weighing load carrier that installation at least two groups independently weigh on band conveyor, be respectively front weighing load carrier 4 and rear weighing load carrier 1, and belt conveyer scale instrument 8 detects respectively by the gravimetric value of two groups of identical materials of weighing load carrier;
A2, belt conveyer scale instrument 8 is calibrated:
A. belt conveyer scale instrument 8 is obtained the gravimetric value that gravimetric value that the front weighing load carrier 4 under corresponding mass flow weighs and rear weighing load carrier 1 weigh, and deduct the gravimetric value that front weighing load carrier 4 weighs with the gravimetric value that rear weighing load carrier 1 weighs, obtain weight difference;
B. the gravimetric value weighing divided by rear weighing load carrier 1 by above-mentioned weight difference, obtains difference rate, determines range calibration number;
B, in the time of the normal convey materials of band conveyor, belt conveyer scale instrument 8 detects front weighing load carrier 4 and rear weighing load carrier 1 under corresponding mass flow and detects the weight difference of identical material in real time, and this weight difference and the weight difference in when calibration are compared, judge whether weight difference exceeds certain scope;
If the weight difference of C, material is overproof, belt conveyer scale instrument 8 is calculated overproof ratio, the range calibration number obtaining while calibration with overproof ratio correction.
Further, between front weighing load carrier 4 and rear weighing load carrier 1, be equipped with before A weighing load carrier and rear A weighing load carrier; Increase by two weighing load carriers, can improve the precision of measurement.
Further, in the time judging that weight of material difference is overproof, the temperature value that belt conveyer scale instrument 8 detects by temperature sensor 11 carries out temperature compensation to result of calculation; Thereby improve measuring accuracy and reduce the impact of variation of ambient temperature on LOAD CELLS.
Belt conveyer scale instrument 8 use computing machines are replaced.
Embodiment: test condition: belt width: 1800mm; Belt speed: 3.5 m/s; Flow: 3800t/h
Under mass flow 3800t/h operation conditions, 4 groups independently weighing load carrier measure gravimetric value:
Rear weighing load carrier 1: weight of material value 710.1kg
Rear A weighing load carrier 2: weight of material value 708.5kg
Front A weighing load carrier 3: weight of material value 706.9.1kg
Front weighing load carrier 4: weight of material value 705.3kg
Weighing load carrier 4=710.1-705.3=4.8kg before difference=rear weighing load carrier 1-
Difference rate=4.8/710.1=0.67%, now range calibration number is A.
In the time that external environment condition changes, belt conveyer scale instrument 8 detects that difference rate exceedes the B% of the difference rate having obtained, and belt conveyer scale instrument 8 use B% revise range calibration and count A, obtains revised range calibration and counts C, and the normal metering of C for belt conveyer scale counted in range calibration.
Claims (4)
1. a belted electronic balance permanance monitoring method, is characterized in that, comprises the following steps:
A, two groups of independent front weighing load carrier (4) and rear weighing load carriers (1) that weigh are installed on band conveyor, belt conveyer scale instrument (8) detects respectively by the gravimetric value of two groups of identical materials of weighing load carrier, the range calibration number that the front weighing load carrier (4) while calculating and record calibration under corresponding mass flow obtains when weighing the weight difference of identical material and calibrate with rear weighing load carrier (1);
B, in the time of the normal convey materials of band conveyor, belt conveyer scale instrument (8) detects front weighing load carrier (4) and rear weighing load carrier (1) under corresponding mass flow and detects the weight difference of identical material in real time, and this weight difference and the weight difference in when calibration are compared, judge whether weight difference goes beyond the scope;
If the weight difference of C material is overproof, belt conveyer scale instrument (8) is calculated overproof ratio, the range calibration number obtaining while calibration with overproof ratio correction, and revised range calibration number is for the normal metering of belt conveyer scale.
2. a kind of belted electronic balance permanance monitoring method according to claim 1, is characterized in that, front weighing load carrier (4) be connected with rear weighing load carrier (1) or interval after A weighing load carrier (2) or interval support idler roller (5).
3. a kind of belted electronic balance permanance monitoring method according to claim 1 and 2, is characterized in that, in the time judging that weight of material difference is overproof, belt conveyer scale instrument (8) is rejected the error that temperature variation causes that LOAD CELLS (7) self produces.
4. a kind of belted electronic balance permanance monitoring method according to claim 1 and 2, is characterized in that, belt conveyer scale instrument (8) is replaced with computing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410139707.0A CN103900676A (en) | 2014-04-04 | 2014-04-04 | Method for monitoring durability of electronic belt scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410139707.0A CN103900676A (en) | 2014-04-04 | 2014-04-04 | Method for monitoring durability of electronic belt scale |
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| Publication Number | Publication Date |
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| CN103900676A true CN103900676A (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410139707.0A Withdrawn CN103900676A (en) | 2014-04-04 | 2014-04-04 | Method for monitoring durability of electronic belt scale |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154974A (en) * | 2014-07-23 | 2014-11-19 | 赛摩电气股份有限公司 | High-stability electronic belt scale and stability compensating method thereof |
| CN104296855A (en) * | 2014-10-17 | 2015-01-21 | 铜陵市三爱思电子有限公司 | Device and method for judging and adjusting long-time stability of electronic belt scale in real time |
| CN105668185A (en) * | 2016-04-14 | 2016-06-15 | 南京通晟自控***有限公司 | Operating state detecting device and method for belt conveyor |
| CN110844137A (en) * | 2019-10-09 | 2020-02-28 | 兖矿新疆煤化工有限公司 | Online rechecking joint control weighing and filling system and method for correcting weighing error thereof |
| CN111174891A (en) * | 2020-01-14 | 2020-05-19 | 铜陵市三爱思电子有限公司 | Method for judging durability of 0.2-level electronic belt scale |
| CN112129387A (en) * | 2020-07-28 | 2020-12-25 | 华设设计集团股份有限公司 | Dynamic weighing system temperature self-adaption method based on big data |
| CN112816039A (en) * | 2020-12-31 | 2021-05-18 | 徐州依科电气有限公司 | Dynamic experiment and training method and system for high-precision belt scale |
| CN114383699A (en) * | 2022-01-14 | 2022-04-22 | 赛摩电气有限公司 | Belt scale weighing device and metering method |
| CN114396995A (en) * | 2022-01-14 | 2022-04-26 | 赛摩电气有限公司 | Weighing device and metering method of belt feeder |
| CN117902263A (en) * | 2024-03-19 | 2024-04-19 | 山西戴德测控技术股份有限公司 | Roller type online belt hardness detection device |
-
2014
- 2014-04-04 CN CN201410139707.0A patent/CN103900676A/en not_active Withdrawn
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154974A (en) * | 2014-07-23 | 2014-11-19 | 赛摩电气股份有限公司 | High-stability electronic belt scale and stability compensating method thereof |
| CN104296855A (en) * | 2014-10-17 | 2015-01-21 | 铜陵市三爱思电子有限公司 | Device and method for judging and adjusting long-time stability of electronic belt scale in real time |
| CN104296855B (en) * | 2014-10-17 | 2017-01-25 | 铜陵市三爱思电子有限公司 | Device and method for judging and adjusting long-time stability of electronic belt scale in real time |
| CN105668185A (en) * | 2016-04-14 | 2016-06-15 | 南京通晟自控***有限公司 | Operating state detecting device and method for belt conveyor |
| CN105668185B (en) * | 2016-04-14 | 2017-10-13 | 南京通晟自控***有限公司 | The running state detecting device and detection method of a kind of belt conveyor apparatus |
| CN110844137B (en) * | 2019-10-09 | 2022-06-17 | 兖矿集团有限公司 | Online rechecking joint control weighing and filling system and method for correcting weighing error thereof |
| CN110844137A (en) * | 2019-10-09 | 2020-02-28 | 兖矿新疆煤化工有限公司 | Online rechecking joint control weighing and filling system and method for correcting weighing error thereof |
| CN111174891A (en) * | 2020-01-14 | 2020-05-19 | 铜陵市三爱思电子有限公司 | Method for judging durability of 0.2-level electronic belt scale |
| CN111174891B (en) * | 2020-01-14 | 2022-04-19 | 铜陵市三爱思电子有限公司 | Method for judging durability of 0.2-level electronic belt scale |
| CN112129387A (en) * | 2020-07-28 | 2020-12-25 | 华设设计集团股份有限公司 | Dynamic weighing system temperature self-adaption method based on big data |
| CN112129387B (en) * | 2020-07-28 | 2022-03-29 | 华设设计集团股份有限公司 | Dynamic weighing system temperature self-adaption method based on big data |
| CN112816039A (en) * | 2020-12-31 | 2021-05-18 | 徐州依科电气有限公司 | Dynamic experiment and training method and system for high-precision belt scale |
| CN114396995A (en) * | 2022-01-14 | 2022-04-26 | 赛摩电气有限公司 | Weighing device and metering method of belt feeder |
| CN114383699A (en) * | 2022-01-14 | 2022-04-22 | 赛摩电气有限公司 | Belt scale weighing device and metering method |
| CN114396995B (en) * | 2022-01-14 | 2024-05-07 | 赛摩电气有限公司 | Weighing device and metering method for belt feeder |
| CN114383699B (en) * | 2022-01-14 | 2024-05-14 | 赛摩电气有限公司 | Belt scale weighing device and metering method |
| CN117902263A (en) * | 2024-03-19 | 2024-04-19 | 山西戴德测控技术股份有限公司 | Roller type online belt hardness detection device |
| CN117902263B (en) * | 2024-03-19 | 2024-05-28 | 山西戴德测控技术股份有限公司 | Roller type online belt hardness detection device |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20140702 |