CN101941600B - Material type determination method for automatic feeding system - Google Patents
Material type determination method for automatic feeding system Download PDFInfo
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- CN101941600B CN101941600B CN 201010249062 CN201010249062A CN101941600B CN 101941600 B CN101941600 B CN 101941600B CN 201010249062 CN201010249062 CN 201010249062 CN 201010249062 A CN201010249062 A CN 201010249062A CN 101941600 B CN101941600 B CN 101941600B
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- 239000000463 material Substances 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000003321 amplification Effects 0.000 claims description 27
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 27
- 230000005484 gravity Effects 0.000 claims description 5
- 239000003245 coal Substances 0.000 description 4
- 238000007405 data analysis Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention provides a material type determination method for an automatic feeding system. In the method, a material type is determined according to a magnification coefficient function. Different treatment can be performed on different materials by the material type determination method for the automatic feeding system provided by the invention, so that a shipping (or stacking) process which uses the automatic feeding system is more correct.
Description
Technical field
The present invention relates to a kind of material type determination method for automatic feeding system.
Background technology
At present domestic main coastal Coal Ports (such as PORT OF HUANGHUA, PORT OF QINHUANGDAO etc.), tippler is a kind of large-scale special-purpose coal commonly used shipping tool of unloading.When work, tippler will be mounted with the railway car clamping of material (such as coal) and overturn, in a plurality of funnels of material impouring in the compartment, material pours on the belt conveyer through funnel and oscillating feeder, step of going forward side by side carries, so that the shipment transportation (or pile to stockyard coal).
Usually, can call the tippler feeding system to the combination of funnel and oscillating feeder.Difference according to the scale of loading, the model of tippler is also different, can be divided into the tippler that once turns over a joint compartment, once turn over the tippler etc. in two joint compartments, the compartment number that tippler overturns each time is more, and needed funnel number also will increase accordingly in the tippler feeding system.A kind of feeding system and belt conveyer of existing tippler for once turning over two joint compartments have been shown among Fig. 1.As shown in Figure 1, this tippler feeding system comprises 5 each funnels of feed (1-5), there is an oscillating feeder each funnel below (referring to the oscillating feeder 5 ' among Fig. 1, wherein every oscillating feeder 5 ' is driven by two platform convex turbin generator (not shown)), by the vibration of oscillating feeder 5 ' material vibrating in the funnel is carried to belt conveyer 6.By 5 funnels while feeds, form material stream at belt conveyer 6,7 pairs of material of belt conveyer scale of belt conveyer 6 outlets flow to Mobile state and weigh, and are used for feeding back the actual weight flow of expecting stream.
Utilize the tippler feeding system, can be by at the funnel end vibration frequency (being the vibration frequency of funnel) of cam motor being adjusted to realize needed shipment speed (weight flow), thus make whole shipment process safety, stable and controlled.But when using existing tippler feeding system, actual adjustment process is also accurate not, often need the artificially to come the discharge rate of funnel is adjusted in real time according to the shipment flow (or windrow flow) of reality, so both delayed the shipment progress, wasted again human resources.
Why accurate not existing tippler feeding system is, can be caused by many reasons.A kind of reason wherein is that the kind of material is a lot, and the water cut of material (owing to weather or artificial reason cause) etc. are not identical yet, and the difference of specific gravity between the material of different batches may be very large, and this just causes above-mentioned adjustment process not accurate enough.If can identify accurately the kind of the material that loads, will improve the accuracy of whole shipment (or windrow) process.
Summary of the invention
According to existing defects in the prior art, the present invention proposes a kind of material type determination method for automatic feeding system.
The invention provides a kind of material variety for gravity system and determine method, the method comprises one group of vibration frequency data of collection and the one group mass flow data corresponding with these group vibration frequency data; According to described one group of mass flow data and corresponding described one group of vibration frequency data, obtain the one group amplification coefficient data corresponding with described one group of vibration frequency data; Described one group of amplification coefficient data and described one group of vibration frequency data are carried out match, obtain the amplification coefficient function; Determine material variety according to resulting amplification coefficient function.
By material type determination method for automatic feeding system provided by the present invention, the amplification coefficient function is carried out match and comparison, can realize accurately determining material variety, and make it possible to according to the material variety that records different materials be carried out different processing, make the process of utilizing gravity system to load onto ship more accurate.
Description of drawings
A kind of feeding system and belt conveyer of existing tippler for once turning over two joint compartments have been shown among Fig. 1;
Fig. 2 is the process flow diagram according to the method that is used for the identification material variety of one embodiment of the present invention.
Embodiment
Fig. 2 is the method that is used for the identification material variety according to one embodiment of the present invention.
In step 210, gather one group of funnel vibration frequency data and the one group mass flow data corresponding with these group vibration frequency data.
The mass flow data here refer to the corresponding mass flow data of single funnel, but in sampling process particularly, can carry out above-mentioned work with a funnel or a plurality of funnel.Because the Error Absolute Value of employed belt conveyer scale is certain in step subsequently, therefore the funnel that uses is more, the error that each funnel is shared is just less, measuring process is also just more accurate, thereby, the a plurality of funnels of preferred employing carry out data collection task (to the pressure of belt conveyer, the funnel quantity that this process is used is also too much unsuitable when considering the feed increase).In system shown in Figure 1, can select three funnels (such as funnel 2-4) to carry out data acquisition, the original frequency of three funnels is set as identical lower value, then every excessively cycle regular hour (such as 1 second) increases a predetermined value (such as 2 hertz) with frequency, until through after several time cycles, the frequency of three funnels is increased to predetermined maximum frequency (such as 50 hertz), has so just obtained one group of funnel vibration frequency data corresponding with the time.On belt conveyer scale 7, can gather the corresponding mass flow of different frequency, consider the time delay of belt conveyer 6, should exist a regular time poor between corresponding frequency data and the mass flow data, this mistiming is determined by system architecture.It should be noted that the mass flow that gathers in this case is the mass flow corresponding to three funnels, therefore also need with described mass flow divided by three, obtain the mass flow of single funnel.
In step 220, according to described one group of mass flow data and corresponding described one group of vibration frequency data corresponding to single funnel, obtain one group of amplification coefficient data corresponding with these group vibration frequency data.This step can utilize formula g (f)=K (f) f to realize, wherein f is the vibration frequency of funnel, g (f) is that vibration frequency is the mass flow of supplying with in the single funnel of f, for different vibration frequency f, the mass flow of supplying with from funnel also can be different, relation between amplification coefficient function K (f) expression mass flow and the vibration frequency, and because this relation is nonlinear, so that K (f) is the function of frequency f.
In step 230, these group amplification coefficient data and these group vibration frequency data are carried out match, obtain the amplification coefficient function.
The process of match can adopt the various suitable means in data analysis field to carry out, such as linear fit, curve etc.In one embodiment of the invention, amplification coefficient data and vibration frequency data sequentially are divided into a plurality of sections, the amplification coefficient data in each section and vibration frequency data are carried out linear fit.More preferred, can in each section, think that amplification coefficient function K (f) is normal function, all be the corresponding amplification coefficient of midpoint frequency of section such as the amplification coefficient that can make each frequency in this section.
In step 240, determine material variety according to resulting amplification coefficient function.
In one embodiment of the invention, can measure the amplification coefficient function of all kinds of materials in advance, set up look-up table.Behind the amplification coefficient function that records unknown material, can be by comparing to determine the kind of unknown material with look-up table.Preferably, because proportion is to affect frequency and material from the come down in torrents principal element of speed of funnel, material variety can be determined by proportion.Thereby can determine by the look-up table of setting up amplification coefficient function and proportion the kind of material.
By material type determination method for automatic feeding system provided by the present invention, the amplification coefficient function is carried out match and comparison, can realize accurately determining material variety, and make it possible to according to the material variety that records different materials be carried out different processing, make the process of utilizing gravity system to load onto ship more accurate.
Claims (7)
1. a material variety that is used for gravity system is determined method, and the method comprises:
Gather one group of vibration frequency data and the one group mass flow data corresponding with these group vibration frequency data;
Respectively divided by vibration frequency data corresponding with these mass flow data in described one group of vibration frequency data, obtain the one group amplification coefficient data corresponding with described one group of vibration frequency data by each the mass flow data in described one group of mass flow data;
Described one group of amplification coefficient data and described one group of vibration frequency data are carried out match, obtain the amplification coefficient function;
By resulting amplification coefficient function and a plurality of amplification coefficient functions of measuring are in advance compared to determine material variety.
2. method according to claim 1, wherein said mass flow data are the mass flow data corresponding to single funnel.
3. method according to claim 2 wherein gathers described mass flow data with a plurality of funnels, wherein uses the mass flow sum of described a plurality of funnels to obtain the mass flow data of single funnel divided by the number of employed a plurality of funnels.
4. method according to claim 1, life period postpones between described one group of vibration frequency data and one group of mass flow data corresponding with it.
5. method according to claim 1 wherein sequentially is divided into a plurality of sections with described one group of amplification coefficient data, and the amplification coefficient data in each section are carried out linear fit with corresponding vibration frequency data.
6. method according to claim 3, wherein for each section, the amplification coefficient function that linear fit obtains is normal function.
7. the described method of each claim according to claim 1-6, wherein said material variety is distinguished according to material proportion.
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| CN 201010249062 CN101941600B (en) | 2010-08-09 | 2010-08-09 | Material type determination method for automatic feeding system |
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| CN 201010249062 CN101941600B (en) | 2010-08-09 | 2010-08-09 | Material type determination method for automatic feeding system |
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| CN101941600A CN101941600A (en) | 2011-01-12 |
| CN101941600B true CN101941600B (en) | 2013-01-30 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101937238B (en) * | 2010-08-09 | 2012-04-25 | 中国神华能源股份有限公司 | Automatic feeding control method |
| CN103625895A (en) * | 2013-12-05 | 2014-03-12 | 镇江市顶智微电子科技有限公司 | Conveying and propelling method of encapsulation liquid bottles |
| CN103625894A (en) * | 2013-12-05 | 2014-03-12 | 镇江市顶智微电子科技有限公司 | Identifying and conveying device of encapsulation liquid bottles |
| CN103612894A (en) * | 2013-12-05 | 2014-03-05 | 镇江市顶智微电子科技有限公司 | Liquid filling bottle induction, recognizing and conveying device |
| CN108016899A (en) * | 2017-11-30 | 2018-05-11 | 上海岫峤机电工程有限公司 | A kind of overturning stability of flow control method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0256842A2 (en) * | 1986-08-12 | 1988-02-24 | Kabushiki Kaisha Toshiba | Adaptive process control system |
| US4767279A (en) * | 1987-06-02 | 1988-08-30 | Millipore Corporation | Fluid composition and volumetric delivery control |
| CN1263291A (en) * | 1999-02-12 | 2000-08-16 | 周敬训 | Continuous quantitative feeding control method and its equipment |
| CN1995929A (en) * | 2006-12-26 | 2007-07-11 | 上海师范大学 | Individual metering algorithm for belt conveyer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3560745B2 (en) * | 1996-10-11 | 2004-09-02 | 愛三工業株式会社 | Control device for powder feeder and powder feeder |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0256842A2 (en) * | 1986-08-12 | 1988-02-24 | Kabushiki Kaisha Toshiba | Adaptive process control system |
| US4767279A (en) * | 1987-06-02 | 1988-08-30 | Millipore Corporation | Fluid composition and volumetric delivery control |
| CN1263291A (en) * | 1999-02-12 | 2000-08-16 | 周敬训 | Continuous quantitative feeding control method and its equipment |
| CN1995929A (en) * | 2006-12-26 | 2007-07-11 | 上海师范大学 | Individual metering algorithm for belt conveyer |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平10-116122A 1998.05.06 |
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