CN102445408A - Automatic detector for size grading of filler - Google Patents
Automatic detector for size grading of filler Download PDFInfo
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- CN102445408A CN102445408A CN2011102940361A CN201110294036A CN102445408A CN 102445408 A CN102445408 A CN 102445408A CN 2011102940361 A CN2011102940361 A CN 2011102940361A CN 201110294036 A CN201110294036 A CN 201110294036A CN 102445408 A CN102445408 A CN 102445408A
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- sieve
- force transducer
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Abstract
The invention discloses an automatic detector for size grading of a filler. The automatic detector comprises a measuring and controlling device and a screening device, wherein the measuring and controlling device comprises a chip microprocessor and a force sensor; the force sensor is electrically connected with the chip microprocessor through a signal amplifier and an A/D (Analog to Digital) converter; the screening device comprises an analyzing screen and a vibrating device; and the analyzing screen is arranged on the vibrating device through an analyzing screen fixing frame. Size grading of fillers of different types can be detected automatically and accurately; the automatic detector has the advantages of light device, convenience for using, easiness for operating, high detection speed, accurate and objective data, automatic printing and storing of detection results and reduction in the dust pollution; and the labor intensity of test personnel is lowered, and the test accuracy is increased.
Description
Technical field
The present invention relates to a kind of equipment that roadbed filling and concrete aggregate quality are used that detects, relate in particular to a kind of packing material size grating automatic tester.
Background technology
At present, screen analysis test is all adopted in the detection of packing material size grating.The purpose that detects the packing material size grating is to measure the shared percentage that should the soil gross mass of various grain groups in the filler, understanding the distribution situation of grain size, for type, the engineering properties of judging filler of confirming filler and select filler that foundation is provided.So screen analysis test is a soil test commonly used, its test method is included the correlation test rules already in.The major equipment of screen analysis test is to analyze sieve and testing sifter.
In the prior art, the detection method of packing material size grating is: the air-dried sample of some is crossed the 2mm sieve, and sample is poured in the scalping the superiors sieve of folding successively on the sieve, and the sample under the sieve is poured in the dusting cover the superiors sieve of folding successively, carries out riddler; Riddler takes off each sieve by order from top to bottom after accomplishing, and places on the porcelain dish and rocks with the hand slapping percussion, and till well sifted, the receivable next stage of putting into of the sample under the sieve sieves, and claims to reach on the sieves at different levels the quality of sample in the chassis at last with balance or platform balance; Weigh accomplish after, the percentage that accounts for the sample gross mass with the sample mass less than certain particle diameter is ordinate, grain diameter is a horizontal ordinate, on semilogarithmic paper, draws the particle size distribution point, and sectional curve connect plots a smooth curve; Calculate corresponding grating index through particle size distribution curve, need draw the particle diameter d that sample accounts for bulk sample quality 60%, 30%, 10% like railway engineering earthwork test rule regulation sieve formula screen analysis test
60, d
30, d
10, calculate nonuniformity coefficient C
u(C
u=d
60/ d
10) and and coefficient of curvature C
c
There is following shortcoming at least in above-mentioned prior art:
Need that manual work is weighed, write down, calculating, curve plotting; Complex operation, time-consuming, and test findings is influenced greatly by human factor.In the case, just proposed to research and develop a kind of needs of new instrument and equipment, automatic accurate detection is carried out in the size grading of dissimilar fillers, this also is the aim that the applicant researches and develops this project.
Summary of the invention
The purpose of this invention is to provide a kind of packing material size grating automatic tester that can carry out automatic accurate detection to the size grading of dissimilar fillers.
The objective of the invention is to realize through following technical scheme:
Packing material size grating automatic tester of the present invention comprises measure and control device, screening plant, and said measure and control device comprises chip microprocessor, force transducer, and said force transducer is electrically connected with chip microprocessor through signal amplifier and A/D converter successively;
Said screening plant comprises analyzes sieve, shaking device, and said analysis sieve is arranged on the shaking device through analyzing the sieve fixed mount.
Technical scheme by the invention described above provides can be found out; Packing material size grating automatic tester provided by the invention; Owing to comprise measure and control device, screening plant; Said measure and control device comprises chip microprocessor, force transducer, and said force transducer is electrically connected with chip microprocessor through signal amplifier and A/D converter successively; Screening plant comprises analyzes sieve, shaking device, and said analysis sieve is arranged on the shaking device through analyzing the sieve fixed mount.Can carry out automatic accurate detection to the size grading of dissimilar fillers.
Description of drawings
The structural representation of the packing material size grating automatic tester that Fig. 1 provides for the embodiment of the invention one;
Fig. 2 is the circuit theory diagrams of measure and control device in the embodiment of the invention one;
The structural representation of the packing material size grating automatic tester that Fig. 3 provides for the embodiment of the invention two;
The structural representation of the packing material size grating automatic tester that Fig. 4 provides for the embodiment of the invention three;
Fig. 5 is the circuit theory diagrams of the measure and control device in the embodiment of the invention three.
Among Fig. 1,11-analyzes the sieve fixed mount; 12-analyzes sieve; The 13-force transducer; The 14-shaking device; The 15-motor; The 16-time controller; 17-Electric Machine Control and force transducer interface; The 18-display; The 19-printer interface; The 110-computer interface; The 111-button; The 112-power switch; The 113-measure and control device; The 114-screening plant;
Among Fig. 3,21-analyzes the sieve fixed mount; 22-analyzes sieve; The 23-fastener; The 24-shaking device; The 25-motor; The 26-force transducer; The 27-wire rope; The 28-fixing rack for sensor; The 29-button; 210-Electric Machine Control and force transducer interface; The 211-display; The 212-printer interface; The 213-computer interface; The 214-power switch; The 215-measure and control device; The 216-screening plant;
Among Fig. 4,31-analyzes the sieve fixed mount; 32-analyzes sieve; The 33-shaking device; The 34-motor; The 35-weighing platform; The 36-force transducer; The 37-button; 38-force transducer interface; The 39-display; The 310-printer interface; The 311-computer interface; The 312-power switch.
Embodiment
To combine accompanying drawing that the embodiment of the invention is done to describe in detail further below.
Packing material size grating automatic tester of the present invention, its preferable embodiment is:
Comprise measure and control device, screening plant, said measure and control device comprises chip microprocessor, force transducer, and said force transducer is electrically connected with chip microprocessor through signal amplifier and A/D converter successively;
Said screening plant comprises analyzes sieve, shaking device, and said analysis sieve is arranged on the shaking device through analyzing the sieve fixed mount.Shaking device can be provided with motor or other vibroseis.
Said force transducer can be arranged on shaking device and analyze between the sieve fixed mount; Perhaps, said shaking device is provided with fixing rack for sensor, and said force transducer can be arranged on the back timber of said fixing rack for sensor and analyze between the top of sieve fixed mount.Measure and control device can comprise time controller, Electric Machine Control and force transducer interface, display, printer interface, computer interface, button, power switch etc.
Said force transducer also can be provided with separately, and said force transducer is provided with weighing platform.Said measure and control device can comprise time controller, force transducer interface, display, printer interface, computer interface, button, power switch etc.
Said measure and control device can be realized with the next item down or multinomial function:
Automatically detect the packing material size grating, record calculates the percentage that accounts for gross mass less than the sample mass of certain particle diameter particle automatically less than the sample mass of certain particle diameter particle;
Automatically write down and print particle size distribution curve;
Automatically calculate and demonstration grain composition index, comprise: restriction particle diameter d with the next item down or multinomial particle compositions indicator
60, effective size of grain d
10, nonuniformity coefficient C
u, coefficient of curvature C
c, on the grading curve corresponding to the particle diameter d of 15% content
15, corresponding to the particle diameter d of 85% content
85
Packing material size grating automatic tester of the present invention; Can carry out automatic accurate detection to the size grading of dissimilar fillers, have that instrument is light and handy, easy to use, simple to operate, detection speed is fast, data are accurately objective, print and store testing result automatically, reduce the advantage of dust pollution; Reduce the labour intensity of testing crew and improved the accuracy of test.
Through specific embodiment the present invention is carried out detailed explanation below:
Specific embodiment one:
As shown in Figure 1, comprise screening plant and measure and control device, force transducer is positioned over shaking device and analyzes between the sieve fixed mount.
Screening plant comprises analyzes sieve fixed mount, analysis sieve, shaking device, motor etc.
Measure and control device comprises force transducer, time controller, display, button, power switch, printer interface, computer interface, Electric Machine Control and force transducer interface etc.Each is analyzed the size of mesh and the quality of sieve and analyzes sieve fixed mount quality and before operation, import in the measure and control device program.
Concrete operations are following: the air-dried sample of some is poured in the analysis sieve the superiors sieve of folding successively, fixed the analysis sieve with analyzing the sieve fixed mount.Time controller with measure and control device configures the vibrations time, then the shaking-sieving sample.After screening is accomplished force transducer raised and fix, take by weighing and analyze the sieve fixed mount, analyze sieve and sample gross mass, click this gross mass of button storage of measure and control device.Take off first then from the top and analyze sieve, and in measure and control device, store this quality numerical value, operation is one by one successively to the last analyzed sieve for one.The quality of sieve of the analysis in each aperture at this moment and corresponding sieve samples at different levels has deposited measure and control device in, and measure and control device is handled through data operation, generates corresponding particle size distribution curve, and calculates d automatically
60, d
30, d
10, d
85And C
u, C
cEtc. the grating index.Through being connected with printer, computing machine, just data and curve printing come out or are transferred in the computing machine.
As shown in Figure 2, the measure and control device circuit mainly is made up of several sections such as motor control module, signal acquisition module, data processing module, memory module, display module, printing transport module, buttons.Its principle of work is: through button operation, and chip microprocessor I/O mouth output control signal, through photoelectric coupler isolation and driving, pilot relay work, thereby control motor rotation.Force sensor signals is amplified the entering A/D converter through signal amplifier; After A/D converter becomes digital signal with analog signal conversion; Send chip microprocessor to and carry out data acquisition, calculation process and storage; Show by display at last, and output to the printer prints test result, or connect the computing machine transmitting test data through communication interface.
Specific embodiment two:
As shown in Figure 3, force transducer is positioned over screening plant top.
Screening plant comprises analyzes sieve fixed mount, analysis sieve, fastener, shaking device, motor, wire rope and fixing rack for sensor etc.
Measure and control device comprises force transducer, display, button, power switch, printer interface, computer interface, Electric Machine Control and force transducer interface etc.Each is analyzed the size of mesh and the quality of sieve and analyzes sieve fixed mount quality and before operation, import in the measure and control device program.
Concrete operations are following: the air-dried sample of some is poured in the analysis sieve the superiors sieve of folding successively, fixed the analysis sieve with analyzing the sieve fixed mount, fastener fixes analyzes sieve fixed mount bottom.In measure and control device, configure the vibrations time, click keys is confirmed back shaking-sieving sample.Screening after accomplishing is unclamped fastener, is suspended to rope on the hook of force transducer bottom, will analyze the sieve fixed mount and analyze sieve to promote, and takes by weighing and analyzes the sieve fixed mount, analyzes sieve and sample gross mass, clicks this gross mass of button storage of measure and control device.Take off first then from the top and analyze sieve, and in measure and control device, store this quality numerical value, operation is one by one successively to the last analyzed sieve for one.The quality of sieve of the analysis in each aperture at this moment and corresponding sieve samples at different levels has deposited measure and control device in, and measure and control device is handled through data operation, generates corresponding particle size distribution curve, and calculates d automatically
60, d
30, d
10, d
85And C
u, C
cEtc. the grating index.Through being connected with printer, computing machine, just data and curve printing come out or are transferred in the computing machine.
Specific embodiment three:
As shown in Figure 4, screening plant and measure and control device work alone.
Screening plant comprises analyzes sieve fixed mount, analysis sieve, shaking device, motor etc.
Measure and control device comprises force transducer, weighing platform, display, button, power switch, printer interface, computer interface, Electric Machine Control and force transducer interface etc.Each is analyzed the size of mesh and the quality of sieve and before operation, imports in the measure and control device program.
Concrete operations are following: the air-dried sample of some is poured in the analysis sieve the superiors sieve of folding successively, fixed analysis sieve, shaking-sieving sample then with analyzing the sieve fixed mount.To analyze sieve integral body after screening is accomplished and move on the weighing platform, and take by weighing and analyze sieve and sample gross mass, click this gross mass of button storage of measure and control device.Take off first then from the top and analyze sieve, and in measure and control device, store this quality numerical value, operation is one by one successively to the last analyzed sieve for one.The quality of sieve of the analysis in each aperture at this moment and corresponding sieve samples at different levels has deposited measure and control device in, and measure and control device is handled through data operation, generates corresponding particle size distribution curve, and calculates d automatically
60, d
30, d
10, d
85And C
u, C
cEtc. the grating index.Through being connected with printer, computing machine, just data and curve printing come out or are transferred in the computing machine.
As shown in Figure 5, be the schematic diagram of measure and control device circuit in the specific embodiment three.
The above; Be merely the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technician who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (8)
1. packing material size grating automatic tester; It is characterized in that; Comprise measure and control device, screening plant, said measure and control device comprises chip microprocessor, force transducer, and said force transducer is electrically connected with chip microprocessor through signal amplifier and A/D converter successively;
Said screening plant comprises analyzes sieve, shaking device, and said analysis sieve is arranged on the shaking device through analyzing the sieve fixed mount.
2. packing material size grating automatic tester according to claim 1 is characterized in that, said force transducer is arranged on shaking device and analyzes between the sieve fixed mount.
3. packing material size grating automatic tester according to claim 1 is characterized in that said shaking device is provided with fixing rack for sensor, and said force transducer is arranged on the back timber of said fixing rack for sensor and analyzes between the top of sieve fixed mount.
4. according to claim 2 or 3 described packing material size grating automatic testers, it is characterized in that said measure and control device comprises time controller, Electric Machine Control and force transducer interface, display, printer interface, computer interface, button, power switch.
5. packing material size grating automatic tester according to claim 1 is characterized in that said force transducer is provided with separately, and said force transducer is provided with weighing platform.
6. packing material size grating automatic tester according to claim 5 is characterized in that said measure and control device comprises time controller, force transducer interface, display, printer interface, computer interface, button, power switch.
7. according to claim 1,2,3 or 5 described packing material size grating automatic testers, it is characterized in that said measure and control device can be realized with the next item down or multinomial function:
Automatically detect the packing material size grating, record calculates the percentage that accounts for gross mass less than the sample mass of certain particle diameter particle automatically less than the sample mass of certain particle diameter particle;
Automatically write down and print particle size distribution curve;
Automatically calculate and demonstration grain composition index, comprise: restriction particle diameter d60, effective size of grain d with the next item down or multinomial particle compositions indicator
10, nonuniformity coefficient C
u, coefficient of curvature C
c, on the grading curve corresponding to the particle diameter d of 15% content
15, corresponding to the particle diameter d of 85% content
85
8. according to claim 1,2,3 or 5 described packing material size grating automatic testers, it is characterized in that said shaking device is provided with motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102940361A CN102445408A (en) | 2011-09-29 | 2011-09-29 | Automatic detector for size grading of filler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102940361A CN102445408A (en) | 2011-09-29 | 2011-09-29 | Automatic detector for size grading of filler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102445408A true CN102445408A (en) | 2012-05-09 |
Family
ID=46008116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102940361A Pending CN102445408A (en) | 2011-09-29 | 2011-09-29 | Automatic detector for size grading of filler |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980640A (en) * | 2012-11-14 | 2013-03-20 | 中铁十九局集团第七工程有限公司 | Quality quickly determination method for particles below 0.02mm of graded broken stone |
| CN103076252A (en) * | 2013-01-05 | 2013-05-01 | 周永乾 | Integrated detector for slurry viscosity and rock debris granularity |
| CN105738258A (en) * | 2016-03-07 | 2016-07-06 | 华北水利水电大学 | Detection method for anti-filtration capability of vegetation concrete |
| CN105801038A (en) * | 2016-03-07 | 2016-07-27 | 华北水利水电大学 | Method for testing performance of vegetation form eco-concrete |
| CN105944955A (en) * | 2015-12-21 | 2016-09-21 | 河海大学 | Particle material grading measurement instrument and measurement method thereof |
| CN106000862A (en) * | 2016-05-26 | 2016-10-12 | 河海大学 | Automatic screening instrument applicable to fine particle cluster and use method of instrument |
| CN106290054A (en) * | 2016-08-29 | 2017-01-04 | 内蒙古包钢钢联股份有限公司 | The moisture of carbide slag and the detection method of granularity |
| CN107014712A (en) * | 2017-05-24 | 2017-08-04 | 中国铁路总公司 | A kind of rubble flat-elongated particles detection method of content and device |
| CN107063948A (en) * | 2017-07-01 | 2017-08-18 | 孙大欣 | A kind of full automatic pulverized coal sampling analysis instrument |
| CN108303353A (en) * | 2018-02-05 | 2018-07-20 | 中原工学院 | A kind of soil body particle automatic measurement experimental provision |
| CN108709833A (en) * | 2018-05-17 | 2018-10-26 | 北京城建勘测设计研究院有限责任公司 | A kind of grading analysis device and method for in-situ test |
| CN109759316A (en) * | 2019-01-31 | 2019-05-17 | 中南大学 | A kind of pulp classifier and method for sieving detecting granular materials gradation characteristic reliability |
| CN109883903A (en) * | 2019-03-05 | 2019-06-14 | 山东科技大学 | A kind of goaf is caving rock partial size evolution migration rule analogy method and device |
| CN113058847A (en) * | 2021-04-23 | 2021-07-02 | 哈尔滨工业大学 | Automatic screening and mixing system and method for anti-frost heaving filler of high-speed railway foundation |
| CN114527007A (en) * | 2022-04-24 | 2022-05-24 | 徐州三和鑫诚新型建材有限公司 | High-precision strength detection device for concrete formula test |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010061569A (en) * | 1999-12-28 | 2001-07-07 | 이구택 | An apparatus for mearsuring a cokes |
| US6581780B1 (en) * | 2001-01-16 | 2003-06-24 | Ai Enterprises, Inc. | Automatic gradation unit |
| CN1623682A (en) * | 2004-12-08 | 2005-06-08 | 西南石油学院 | Intelligent multilayer barrel type net vibrating screen |
| CN101419239A (en) * | 2008-10-31 | 2009-04-29 | 赵焕普 | Full automatic on-line sampling inspection system |
| CN202256107U (en) * | 2011-09-29 | 2012-05-30 | 中铁第五勘察设计院集团有限公司 | Automatic detector for filler size grading |
-
2011
- 2011-09-29 CN CN2011102940361A patent/CN102445408A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010061569A (en) * | 1999-12-28 | 2001-07-07 | 이구택 | An apparatus for mearsuring a cokes |
| US6581780B1 (en) * | 2001-01-16 | 2003-06-24 | Ai Enterprises, Inc. | Automatic gradation unit |
| CN1623682A (en) * | 2004-12-08 | 2005-06-08 | 西南石油学院 | Intelligent multilayer barrel type net vibrating screen |
| CN101419239A (en) * | 2008-10-31 | 2009-04-29 | 赵焕普 | Full automatic on-line sampling inspection system |
| CN202256107U (en) * | 2011-09-29 | 2012-05-30 | 中铁第五勘察设计院集团有限公司 | Automatic detector for filler size grading |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980640A (en) * | 2012-11-14 | 2013-03-20 | 中铁十九局集团第七工程有限公司 | Quality quickly determination method for particles below 0.02mm of graded broken stone |
| CN102980640B (en) * | 2012-11-14 | 2014-12-17 | 中铁十九局集团第七工程有限公司 | Quality quickly determination method for particles below 0.02mm of graded broken stone |
| CN103076252A (en) * | 2013-01-05 | 2013-05-01 | 周永乾 | Integrated detector for slurry viscosity and rock debris granularity |
| CN105944955A (en) * | 2015-12-21 | 2016-09-21 | 河海大学 | Particle material grading measurement instrument and measurement method thereof |
| CN105738258A (en) * | 2016-03-07 | 2016-07-06 | 华北水利水电大学 | Detection method for anti-filtration capability of vegetation concrete |
| CN105801038A (en) * | 2016-03-07 | 2016-07-27 | 华北水利水电大学 | Method for testing performance of vegetation form eco-concrete |
| CN106000862A (en) * | 2016-05-26 | 2016-10-12 | 河海大学 | Automatic screening instrument applicable to fine particle cluster and use method of instrument |
| CN106290054A (en) * | 2016-08-29 | 2017-01-04 | 内蒙古包钢钢联股份有限公司 | The moisture of carbide slag and the detection method of granularity |
| CN107014712A (en) * | 2017-05-24 | 2017-08-04 | 中国铁路总公司 | A kind of rubble flat-elongated particles detection method of content and device |
| CN107014712B (en) * | 2017-05-24 | 2023-12-26 | 中国铁路总公司 | Method and device for detecting content of flaky particles of lithotripter |
| CN107063948A (en) * | 2017-07-01 | 2017-08-18 | 孙大欣 | A kind of full automatic pulverized coal sampling analysis instrument |
| CN108303353A (en) * | 2018-02-05 | 2018-07-20 | 中原工学院 | A kind of soil body particle automatic measurement experimental provision |
| CN108709833A (en) * | 2018-05-17 | 2018-10-26 | 北京城建勘测设计研究院有限责任公司 | A kind of grading analysis device and method for in-situ test |
| CN109759316A (en) * | 2019-01-31 | 2019-05-17 | 中南大学 | A kind of pulp classifier and method for sieving detecting granular materials gradation characteristic reliability |
| CN109759316B (en) * | 2019-01-31 | 2022-03-18 | 中南大学 | Screening instrument and screening method for detecting grading characteristic reliability of granular material |
| CN109883903A (en) * | 2019-03-05 | 2019-06-14 | 山东科技大学 | A kind of goaf is caving rock partial size evolution migration rule analogy method and device |
| CN113058847A (en) * | 2021-04-23 | 2021-07-02 | 哈尔滨工业大学 | Automatic screening and mixing system and method for anti-frost heaving filler of high-speed railway foundation |
| CN114527007A (en) * | 2022-04-24 | 2022-05-24 | 徐州三和鑫诚新型建材有限公司 | High-precision strength detection device for concrete formula test |
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Application publication date: 20120509 |