CN107225083A - A kind of detection method of aggregate grading and the device using this method - Google Patents
A kind of detection method of aggregate grading and the device using this method Download PDFInfo
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- CN107225083A CN107225083A CN201710574521.1A CN201710574521A CN107225083A CN 107225083 A CN107225083 A CN 107225083A CN 201710574521 A CN201710574521 A CN 201710574521A CN 107225083 A CN107225083 A CN 107225083A
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- weighing
- screen cloth
- storehouse
- aggregate grading
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B2201/00—Details applicable to machines for screening using sieves or gratings
- B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a kind of detection method of aggregate grading and using the device of this method, the multilayer screen cloth vibration of motor driving vertical spacing arrangement, the sieve diameter of these screen clothes is sequentially reduced from top to bottom, and the screen cloth that sample is placed in the superiors starts vibrosieve；Sample is scattered on each layer screen cloth after passing through vibrosieve, and motor stops vibration；The example weight drawn on each layer of screen cloth is weighed respectively, is recorded and is obtained P1、P2、…、Pn, each layer of example weight is added to obtain PAlways, PAlways=P1+P2+…+Pn；According to the data P of acquisition1、P2、…、PnAnd PAlways, calculate the percent of pass T of each layer of screen cloth1、T2、…、Tn, finally according to obtaining percent of pass T1、T2、…、TnDraw aggregate grading curve.Not only operating efficiency is high by the present invention, and one is also independently operable completes.
Description
Technical field
The present invention relates to a kind of detection method of aggregate grading and using the device of this method, belong to automatic sieving and weigh skill
Art field.
Background technology
Aggregate grading poor quality refers to the sand particles blend proportion imbalance of different-grain diameter or lacked.Good level is matched somebody with somebody
Refer to that coarse grained space is just particles filled in, the space of middle particle is filled by fine grained just, is consequently formed most fine and close
Stacking states.The quality that sand particles level is matched somebody with somebody can be intuitively analyzed from screening grading curve.Screening grading curve be with
Percent of pass is ordinate, and screen cloth mesh size is what abscissa was drawn.Drawing out screening grading curve can quickly look for
The particle for going out fracture is interval, so as to targetedly be supplemented, if any excessive situation, can also be adjusted in advance.
It is big that current field laboratory laboratory technician draws screening grading curve labor intensity.If belt conveyor presses width
1200mm, conveying capacity is calculated for 300t/h, lorry per car 50t, daily production duration 10h, and per car will be inspected by random samples, then daily
At least sampling observation sampling 60 times.Per sub-sampling by calculating in 2 minutes is shut down, fetch after sample, bushing screen screening sample is sieved 10 minutes, note
Record data 5 minutes, calculate percent of pass 2 minutes, draw grading curve 1 minute, single sampling plus screening are weighed and report generation
20 minutes altogether, 20h was then spent daily.Manual sampling screening weigh tabulation process there is also failing to record, misread, miscalculate etc. artificially
Slip up the absolute error that causes, after sample weight is more than 50 jin, then at least need two laboratory technicians to cooperate jointly completion.
The content of the invention
The invention provides a kind of detection method of aggregate grading and using the device of this method, background technology is which overcomed
Existing deficiency.The technical solution adopted for the present invention to solve the technical problems is：
A kind of detection method of aggregate grading, including：
Step one, the multilayer screen cloth vibration of motor driving vertical spacing arrangement, the sieve diameter of these screen clothes is from top to bottom
It is sequentially reduced, the screen cloth that sample is placed in the superiors starts vibrosieve；
Step 2, sample is scattered on each layer screen cloth after passing through vibrosieve, and motor stops vibration；
Step 3, weighs the example weight drawn on each layer of screen cloth, records and obtain P respectively1、P2、…、Pn, will be every
One layer of example weight is added to obtain PAlways, PAlways=P1+P2+…+Pn；
Step 4, according to the data P of acquisition1、P2、…、PnAnd PAlways, calculate the percent of pass T of each layer of screen cloth1、T2、…、
Tn, finally according to obtaining percent of pass T1、T2、…、TnDraw aggregate grading curve.
Among one preferred embodiment：The time that motor oscillating is sieved is 5-15 minutes；The gross weight of sample is in 30-
50kg。
Among one preferred embodiment：These screen clothes are opened weighed from the bottom up step by step, after each layer of screen cloth is opened,
The sample on screen cloth being unlocked, which is fallen directly into weighing device, is weighed, and weighing device is connected with PLC, will be surveyed
The data automatic storage measured finally calculates T automatically among PLC by PLC1、T2、…、Tn, and it is raw
Into aggregate grading curve.
A kind of detection means of aggregate grading, including screening plant, device for discharging and meausring apparatus；
The screening plant includes base, sieve nest, the elastic parts being connected between the base and the sieve nest and for driving
The motor of sieve nest vibration, the sieve nest is provided with multilayer screen cloth, the arrangement of these screen cloth vertical spacings, the sieve diameter of these screen clothes
It is sequentially reduced from top to bottom；
The device for discharging each layer of sieve nest of correspondence is respectively equipped with drive cylinder, and the drive cylinder drives the screen cloth to be unloaded
Material, the drive cylinder drives the screen cloth to carry out at least two kinds of the mode of discharging, and one kind is that the drive cylinder drives the screen cloth to turn over
Unloading material, another is that the drive cylinder drives the screening level to remove the sieve nest, and the device for discharging also includes being arranged on the sieve
Scraper part on body, when the screening level removes the sieve nest, the scraper part scrapes the sample of the screen cloth；
The meausring apparatus is arranged on below the screening plant, and the meausring apparatus includes weighing support, is arranged on the weighing branch
Weighing sensor and weighing storehouse on frame, the weighing sensor support the weighing storehouse, and the weighing position in storehouse, should immediately below the screen cloth
The bottom for weighing storehouse is provided with discharge port, and the meausring apparatus also includes the door-plate mechanism for being used to switch the discharge port.
Among one preferred embodiment：The door-plate mechanism includes door-plate, cylinder and two connectors, and two connectors are symmetricly set on
The left and right sides of the door-plate, the connector one end connects the door-plate, and the other end and the weighing storehouse rotate connection, and the cylinder is arranged on
On the weighing storehouse, the expansion link of the cylinder is connected with the door-plate；The door-plate mechanism also includes two lubricating cups, and two lubricating cups are separately positioned on
On the weighing storehouse, the lubricating cup can be lubricated to the tie point in the connector and this weighing storehouse.
Among one preferred embodiment：The quantity of the weighing sensor is multiple and is evenly distributed on the weighing storehouse periphery,
Beam is provided between the weighing sensor and the weighing storehouse；The weighing sensor is connected with ground wire.
Among one preferred embodiment：The weighing support to should weighing sensor be provided with fixed block, the weighing sensor peace
On the fixed block, anti-sway bolt is additionally provided between the fixed block and the weighing storehouse, the anti-sway bolt is vertically arranged, and this is anti-sway
Screw rod one end is fixedly connected with the weighing storehouse, and the anti-sway screw rod other end activity passes through the fixed block.
Among one preferred embodiment：The elastic parts includes spring and spring base, and the spring base is connected on the base, should
Spring is arranged on the spring base and provides the sieve nest support elastic force；The motor is arranged on the sieve nest.
Among one preferred embodiment：The weighing support of the base of the screening plant and the meausring apparatus is bolted on
Together.
Among one preferred embodiment：Totally 7 layers of these screen clothes, the sieve diameter of screen cloth is respectively from top to bottom：4.75mm,
2.36mm, 1.18mm, 0.6mm, 0.3mm, 0.15mm, 0.075mm, or, the sieve diameter of screen cloth is respectively from top to bottom：
37.5mm, 31.5mm, 26.5mm, 19mm, 13.2mm, 9.5mm, 4.75mm.
The technical program is compared with background technology, and it has the following advantages that：
1. using screening plant, automatically sample is sieved, and meausring apparatus can go out each layer of screen cloth loading with automatic weighing
The weight of product is, so as to easily calculate the percent of pass of each layer of screen cloth, and is finally depicted as aggregate grading curve.
Standard grading curve in the construction technique normalizing of cement concrete and bituminous concrete analyzes, and can optimize sandstone level
Match somebody with somebody, determine the mixing parametric of economical rationality, for pave with concrete, pour provided with the stability study of concrete quality weight
The basic data wanted.
2. single sampling plus screening are weighed and report generation amounts to 15 minutes, weighed and form system with manual sampling plus screening
Make process to compare for 20 minutes, save 5 minutes, 5h can be saved daily.Moreover, single sampling plus screening are weighed and report generation
Process, is less prone to mistake.In addition, sample size maximum can be more than 40kg, one is also independently operable to complete.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 depicts the schematic front view of the detection means of aggregate grading of the present invention.
Fig. 2 depicts the schematic side view of the detection means of aggregate grading of the present invention.
Embodiment
Referring to Fig.1 and 2, a kind of detection means of aggregate grading of the present invention, it is characterised in that：Including screening plant
10th, device for discharging 20 and meausring apparatus 30.The screening plant 10 can be sieved according to the diameter of sample to sample.This is unloaded
Material device 20 is used to unload sample from screen cloth.The meausring apparatus 30 is used to weigh to the sample that screening is obtained.
The screening plant 10 include base 11, sieve nest 12, the elastic parts 13 that is connected between the base and the sieve nest and
For the motor 14 for driving the sieve nest to vibrate.The sieve nest 12 is provided with multilayer screen cloth 15, and these vertical spacings of screen cloth 15 are arranged, this
The sieve diameter of a little screen clothes 15 is sequentially reduced from top to bottom.The elastic parts 13 includes spring 132 and spring base 134, the spring
Seat 134 is connected on the base 11, and the spring 132 is arranged on the spring base 134 and provides the sieve nest 12 support elastic force.Should
Motor 14 is two, is symmetrically mounted on the front and rear sides of sieve nest 12.
Totally 7 layers of these screen clothes 15, the sieve diameter of screen cloth 15 is respectively from top to bottom：4.75mm, 2.36mm, 1.18mm,
0.6mm, 0.3mm, 0.15mm, 0.075mm, or, the sieve diameter of screen cloth 15 is respectively from top to bottom：37.5mm, 31.5mm,
26.5mm, 19mm, 13.2mm, 9.5mm, 4.75mm.
The device for discharging 20 each layer of sieve nest 12 of correspondence is respectively equipped with drive cylinder 22, and the drive cylinder 22 drives the screen cloth
15 carry out discharging, specifically, and the drive cylinder 22 can drive the screen cloth 15 to overturn discharging.It is of course also possible to which it is the driving gas to be
Cylinder 22 drives the level of screen cloth 15 to remove the sieve nest 12, and the device for discharging 20 also includes the scraper portion being arranged on the sieve nest 12
Part, when the level of screen cloth 15 removes the sieve nest 12, the scraper part scrapes the sample of the screen cloth 15.
The meausring apparatus 30 is arranged on the lower section of screening plant 10, including weighs support 31, is arranged on the weighing support
Weighing sensor 32 and weigh storehouse 33, the weighing sensor 32 support the weighing storehouse 33, the weighing storehouse 33 be located at the screen cloth 15
Underface.The bottom in the weighing storehouse 33 is provided with discharge port, and the meausring apparatus also includes the door-plate machine for being used to switch the discharge port
Structure.The door-plate mechanism includes door-plate 34, the connector 36 of cylinder 35 and two.Two connectors 36 are symmetricly set on the left and right of the door-plate 34
Both sides, the one end of connector 36 connects the door-plate 34, and the other end and the weighing storehouse 33 rotate connection.The cylinder 35 claims installed in this
Measure on storehouse 33, the expansion link of the cylinder 35 is connected with the door-plate 34.The cylinder 35 is flexible just can to drive the door-plate 34 with the connection
Rotated centered on part 36 and the tie point in weighing storehouse 33.The door-plate mechanism also includes two lubricating cups, and two lubricating cups are separately positioned on this and claimed
Measure on storehouse 33, the lubricating cup 32 can be lubricated to the tie point in the connector and this weighing storehouse.
The quantity of the weighing sensor 32 is multiple and is evenly distributed on the periphery of weighing storehouse 33, the weighing sensor 32
Beam 37 is provided between the weighing storehouse 33.The weighing sensor 32 is connected with ground wire.
31 pairs of the weighing support should weighing sensor be provided with fixed block 312, the weighing sensor 32 fixes installed in this
On block 312, anti-sway bolt 38 is additionally provided between the fixed block 312 and the weighing storehouse 33, the anti-sway bolt 38 is vertically arranged, this is prevented
Pendulum screw rod 38 one end is fixedly connected with the weighing storehouse 33, and the anti-sway other end of screw rod 38 activity passes through the fixed block 312.
Together with the base 11 of the screening plant is bolted on the weighing support 31 of the meausring apparatus.
During work, it can be sieved by following step：
Step one, the multilayer screen cloth 15 of the driving of motor 14 vertical spacing arrangement vibrates, the sieve diameters of these screen clothes 15 from
On be down sequentially reduced, the screen cloth that sample is placed in the superiors starts vibrosieve；
Step 2, sample is scattered on each layer screen cloth 15 after passing through vibrosieve, and motor 14 stops vibration；
Step 3, weighs the example weight drawn on each layer of screen cloth 15, records and obtain P respectively1、P2、…、Pn, will
Each layer of example weight is added to obtain PAlways, PAlways=P1+P2+…+Pn；
Step 4, according to the data P of acquisition1、P2、…、PnAnd PAlways, calculate the percent of pass T of each layer of screen cloth1、T2、…、
Tn, finally according to obtaining percent of pass T1、T2、…、TnDraw aggregate grading curve.
Preferably, the time that the vibration of motor 14 is sieved is 5-15 minutes；The gross weight of sample is in 30-50kg.
Preferably, these screen clothes 15 are opened weighed from the bottom up step by step, after each layer of screen cloth is opened, are unlocked
Sample on screen cloth, which is fallen directly into weighing device, is weighed, and weighing device is connected with PLC, will measure what is obtained
Data automatic storage finally calculates T automatically among PLC by PLC1、T2、…、Tn, and generate sandstone level
With curve.
It is described above, only present pre-ferred embodiments, therefore the scope that the present invention is implemented can not be limited according to this, i.e., according to
The equivalent changes and modifications that the scope of the claims of the present invention and description are made, all should still belong in the range of the present invention covers.
Claims (10)
1. a kind of detection method of aggregate grading, it is characterised in that including：
Step one, the multilayer screen cloth vibration of motor driving vertical spacing arrangement, the sieve diameters of these screen clothes is from top to bottom successively
Reduce, the screen cloth that sample is placed in the superiors starts vibrosieve；
Step 2, sample is scattered on each layer screen cloth after passing through vibrosieve, and motor stops vibration；
Step 3, weighs the example weight drawn on each layer of screen cloth, records and obtain P respectively1、P2、…、Pn, by each layer
Example weight be added to obtain PAlways, PAlways=P1+P2+…+Pn；
Step 4, according to the data P of acquisition1、P2、…、PnAnd PAlways, calculate the percent of pass T of each layer of screen cloth1、T2、…、Tn, most
Basis obtains percent of pass T afterwards1、T2、…、TnDraw aggregate grading curve.
2. the detection method of aggregate grading according to claim 1, it is characterised in that：The time that motor oscillating is sieved
It is 5-15 minutes；The gross weight of sample is in 30-50kg.
3. the detection method of aggregate grading according to claim 1 or 2, it is characterised in that：These screen clothes from the bottom up by
Level is opened and weighed, and after each layer of screen cloth is opened, the sample on screen cloth being unlocked falls directly into weighing device
Row is weighed, and weighing device is connected with PLC, will the obtained data automatic storage of measurement among PLC, finally by
PLC calculates T automatically1、T2、…、Tn, and generate aggregate grading curve.
4. a kind of detection means of aggregate grading, it is characterised in that：Including screening plant, device for discharging and meausring apparatus；
The screening plant includes base, sieve nest, the elastic parts being connected between the base and the sieve nest and for driving the sieve
The motor of body vibration, the sieve nest is provided with multilayer screen cloth, the arrangement of these screen cloth vertical spacings, and the sieve diameters of these screen clothes is from upper
Down it is sequentially reduced；
The device for discharging each layer of sieve nest of correspondence is respectively equipped with drive cylinder, and the drive cylinder drives the screen cloth to carry out discharging, should
Drive cylinder drives the screen cloth to carry out at least two kinds of the mode of discharging, and one kind is that the drive cylinder drives the screen stencil turning to unload
Material, another is that the drive cylinder drives the screening level to remove the sieve nest, and the device for discharging also includes being arranged on the sieve nest
Scraper part, when the screening level removes the sieve nest, the scraper part scrapes the sample of the screen cloth；
The meausring apparatus is arranged on below the screening plant, and the meausring apparatus includes weighing support, is arranged on the weighing support
Weighing sensor and weigh storehouse, the weighing sensor supports the weighing storehouse, and the weighing position in storehouse is immediately below the screen cloth, the weighing
The bottom in storehouse is provided with discharge port, and the meausring apparatus also includes the door-plate mechanism for being used to switch the discharge port.
5. the detection means of aggregate grading according to claim 4, it is characterised in that：The door-plate mechanism includes door-plate, gas
Cylinder and two connectors, two connectors are symmetricly set on the left and right sides of the door-plate, and the connector one end connects the door-plate, the other end
Rotate and connect with the weighing storehouse, the cylinder is arranged on the weighing storehouse, and the expansion link of the cylinder is connected with the door-plate；The door-plate machine
Structure also includes two lubricating cups, and two lubricating cups are separately positioned on the weighing storehouse, and the lubricating cup can be to the connector and the company in the weighing storehouse
Contact is lubricated.
6. the detection means of aggregate grading according to claim 4, it is characterised in that：The quantity of the weighing sensor is many
It is individual and be evenly distributed on the weighing storehouse periphery, beam is provided between the weighing sensor and the weighing storehouse；The weighing is sensed
Device is connected with ground wire.
7. the detection means of aggregate grading according to claim 6, it is characterised in that：The weighing support is to the biography that should weigh
Sensor is provided with fixed block, and the weighing sensor is arranged on the fixed block, is additionally provided between the fixed block and the weighing storehouse anti-sway
Bolt, the anti-sway bolt is vertically arranged, and the anti-sway screw rod one end is fixedly connected with the weighing storehouse, and the anti-sway screw rod other end activity is worn
Cross the fixed block.
8. the detection means of aggregate grading according to claim 4, it is characterised in that：The elastic parts includes spring and bullet
Spring abutment, the spring base is connected on the base, and the spring is arranged on the spring base and provides the sieve nest support elastic force；The electricity
Machine is arranged on the sieve nest.
9. the detection means of aggregate grading according to claim 4, it is characterised in that：The base of the screening plant claims with this
The weighing support of amount device is bolted on together.
10. the detection means of aggregate grading according to claim 4, it is characterised in that：Totally 7 layers of these screen clothes, screen cloth
Sieve diameter is respectively from top to bottom：4.75mm, 2.36mm, 1.18mm, 0.6mm, 0.3mm, 0.15mm, 0.075mm, or,
The sieve diameter of screen cloth is respectively from top to bottom：37.5mm, 31.5mm, 26.5mm, 19mm, 13.2mm, 9.5mm, 4.75mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710574521.1A CN107225083B (en) | 2017-07-14 | 2017-07-14 | Sand grading detection method and device using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710574521.1A CN107225083B (en) | 2017-07-14 | 2017-07-14 | Sand grading detection method and device using same |
Publications (2)
| Publication Number | Publication Date |
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| CN107225083A true CN107225083A (en) | 2017-10-03 |
| CN107225083B CN107225083B (en) | 2023-06-20 |
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| CN201710574521.1A Active CN107225083B (en) | 2017-07-14 | 2017-07-14 | Sand grading detection method and device using same |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108732071A (en) * | 2018-08-02 | 2018-11-02 | 贵州成智重工科技有限公司 | A kind of detection control apparatus and method of fineness modulus |
| CN109482463A (en) * | 2018-10-25 | 2019-03-19 | 中国地质大学（武汉） | A kind of screening plant of the curvature gradation of control soil |
| CN109540725A (en) * | 2018-12-12 | 2019-03-29 | 江苏时代新能源科技有限公司 | Graphite powder detection method |
| CN109580434A (en) * | 2018-12-05 | 2019-04-05 | 长沙盛泓机械有限公司 | A kind of online fineness modulus measuring device of sand processed |
| CN109624029A (en) * | 2018-12-14 | 2019-04-16 | 河海大学 | A kind of screening compacting automatic demoulding integrated device and compacting release method |
| CN109650817A (en) * | 2019-01-21 | 2019-04-19 | 淳安泰源建材有限公司 | A kind of masonry mortar and its preparation process |
| CN109650816A (en) * | 2019-01-21 | 2019-04-19 | 淳安泰源建材有限公司 | A kind of plastering mortar and its preparation process |
| CN112756250A (en) * | 2020-12-21 | 2021-05-07 | 中国水利水电科学研究院 | Device for online identification and grading optimization of cemented sand gravel granules |
| CN113877814A (en) * | 2021-09-29 | 2022-01-04 | 同济大学 | Screening device for measuring machine-made sand grading and testing method |
| CN113945704A (en) * | 2021-10-20 | 2022-01-18 | 长沙理工大学 | Carbonaceous mudstone disintegration device and test method thereof |
| CN114164730A (en) * | 2021-12-10 | 2022-03-11 | 四川鑫恒森科技有限公司 | Intelligent detection station for asphalt concrete material |
| CN114210563A (en) * | 2021-12-10 | 2022-03-22 | 四川鑫恒森科技有限公司 | Automatic screening and metering system and screening and metering method |
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| CN114210563A (en) * | 2021-12-10 | 2022-03-22 | 四川鑫恒森科技有限公司 | Automatic screening and metering system and screening and metering method |
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