CN110653153A - One-stop sand rain method sample preparation device and use method thereof - Google Patents
One-stop sand rain method sample preparation device and use method thereof Download PDFInfo
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- CN110653153A CN110653153A CN201910956342.3A CN201910956342A CN110653153A CN 110653153 A CN110653153 A CN 110653153A CN 201910956342 A CN201910956342 A CN 201910956342A CN 110653153 A CN110653153 A CN 110653153A
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- 239000004576 sand Substances 0.000 title claims abstract description 101
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000002474 experimental method Methods 0.000 claims abstract description 10
- 239000004744 fabric Substances 0.000 claims abstract 2
- 239000002689 soil Substances 0.000 claims description 29
- 238000012360 testing method Methods 0.000 claims description 10
- 230000009471 action Effects 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims 8
- 230000008859 change Effects 0.000 abstract description 4
- 239000006185 dispersion Substances 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 description 8
- 230000006872 improvement Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 3
- 239000003550 marker Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- 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
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/36—Embedding or analogous mounting of samples
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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 one-stop type sand rain method sample preparation device and a using method thereof. Compared with the prior art, the invention has the advantages that: realize sand collection box and screen cloth separation, solve the sand sample and block up accumulational problem at the sieve mesh, and more energy-conserving, keep spilling sand velocity of flow and flow relatively stable, the sand of dispersion whereabouts, prepare out the better sand sample of homogeneity and repeatability, the high control and the observation of changing of sand sample whereabouts possesses "stop promptly" characteristics promptly soon, the valve can be closed in the control of experiment midway, make the sand screen change midway like this, can convenient efficient realize the preparation of multilayer sand sample.
Description
Technical Field
The invention relates to the technical field of geotechnical engineering, in particular to a one-stop sand rain method sample preparation device and a using method thereof.
Background
The indoor scale sand model test can artificially control and change test conditions, can carry out repeated destructive tests, reveals various mechanical behaviors and mechanisms of soil bodies, verifies and perfects deformation and strength theories of the soil, supplements and verifies theoretical analysis and numerical calculation results, and is widely applied to research on mutual influence of underground structures and surrounding environments.
The preparation of the sample is an important technical link in the process of an indoor scale sand model test, the quality of the sample preparation directly influences the success or failure of the sand model test, the sand rain method is a common method for various soil tests, a natural sand layer formed by wind load or water flow deposition can be simulated, and a formed sand sample is closer to a natural sand foundation, so that the method is widely applied to various sand model tests.
However, the prior sand rain method sample preparation device is 'box-screen-integrated' and is wasted in energy (the device is heavy and vibrates the whole box of sand sample all the time), the process of controlling the density of the screen is very complicated, the falling height of the sand sample is not easy to adjust and observe, the flow and the flow rate of the sand body are changed along with the reduction of the sand sample in the sand collection box body, even the condition that sand blocks and accumulates at a screen opening occurs, and the uniformity and the effectiveness of the experimental sample preparation are not facilitated.
Disclosure of Invention
The invention aims to solve the technical problems that the existing sand sample preparation device is too complicated in design, large in size and inconvenient to use, the falling height of a sand sample is not easy to adjust and observe in the sand sample preparation, the flow rate and the flow velocity of sand bodies are changed along with the reduction of the sand sample in a sand collecting box body, even the situation that sand is blocked and accumulated at a screen opening occurs, and the uniformity and the effectiveness of experimental sample preparation are not facilitated.
In order to solve the technical problems, the technical scheme provided by the invention is as follows: the one-stop type sand rain method sample preparation device comprises a sand collection device, wherein the sand collection device is connected with a splash-proof net through a sand outlet hose, a screen is arranged below the splash-proof net, a marker post is arranged on one side of the sand collection device, a fixing bolt is arranged on the marker post, a movable bolt is arranged below the fixing bolt, and the movable bolt is connected with a vibration device through the fixing rod.
Compared with the prior art, the invention has the advantages that: (1) the separation of the sand collecting box and the screen is realized, and compared with the traditional sand rain method device, the device not only can solve the problem that sand samples are blocked and accumulated on the screen holes, but also is more energy-saving; (2) the sand flow velocity and flow can be kept relatively stable, falling sand can be dispersed, and a sand sample with better uniformity and repeatability can be prepared; (3) the falling height of the sand sample of the device is easier to control and observe; (4) possess the characteristics of "stop promptly immediately after using", the valve can be closed in the control of experiment midway, makes the sand screen change midway like this, can convenient efficient realize the preparation of multilayer sand sample.
As an improvement, the use method is as follows:
s1, pouring a certain amount of sandy soil into the sand collecting device, and adjusting the fixed rod to the position of the sandy soil falling height required by the experiment through the movable bolt when the soil sample is prepared;
s2, starting a vibration device, opening a control valve, controlling the falling flow and the flow rate of the sand body according to the difference of the opening sizes of the control valve, and keeping the flow and the flow rate constant in the time required by the experiment;
s3, allowing sandy soil to flow downwards, enabling the sandy soil to flow out of the sand outlet hose and fall into the screen at a certain flow speed and flow rate, and uniformly scattering the sandy soil into the model box by the screen under the vibration action of the vibration device to prepare a sandy soil sample required by the indoor geotechnical model test.
As an improvement, the fixing bolt is connected with the sand collecting device through a fixing rod.
As an improvement, a model box is arranged below the screen.
As an improvement, one side of the vibration device is connected with an external power supply through a lead.
As an improvement, the screen is connected with a vibrating device.
As an improvement, a control valve is arranged on the sand collecting device.
As an improvement, the number of the fixed rods is four.
As an improvement, the control valve main body is a rotary valve with a controllable opening size.
Drawings
FIG. 1 is a schematic structural diagram of a one-stop sand rain method sample preparation device and a use method thereof.
As shown in the figure: 1. the sand collecting device comprises a sand collecting device 2, a control valve 3, a sand discharging hose 4, a splash-proof net 5, a screen 6, a mark post 7, a fixing bolt 8, a movable bolt 9, a fixing rod 10, a vibrating device 11, a model box 12 and an external power supply.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The invention relates to a one-stop type sand rain method sample preparation device and a using method thereof in specific implementation, wherein the one-stop type sand rain method sample preparation device comprises a sand collecting device 1, the sand collecting device 1 is connected with a splash-proof net 4 through a sand discharging hose 3, a screen 5 is arranged below the splash-proof net 4, a mark post 6 is arranged on one side of the sand collecting device 1, a fixing bolt 7 is arranged on the mark post 6, a movable bolt 8 is arranged below the fixing bolt 7, and the movable bolt 8 is connected with a vibrating device 10 through a fixing rod 9.
The using method comprises the following steps:
s1, pouring a certain amount of sandy soil into the sand collecting device 1, and adjusting the fixed rod 9 to a sandy soil falling height position required by an experiment through the movable bolt 8 when a soil sample is prepared;
s2, starting the vibration device 10, opening the control valve 2, controlling the falling flow and the flow rate of the sand body according to the difference of the opening size of the control valve 2, and keeping the flow and the flow rate constant in the time required by the experiment;
s3, allowing sandy soil to flow downwards, enabling the sandy soil to flow out of the sand outlet hose 3 and fall into the screen 5 at a certain flow speed and flow rate, and uniformly scattering the sandy soil into the model box 11 by the screen 5 under the vibration action of the vibration device 10 to prepare a sandy soil sample required by the indoor geotechnical model test.
The fixing bolt 7 is connected with the sand collecting device 1 through the fixing rod 9.
A model box 11 is arranged below the screen 5.
One side of the vibration device is connected with an external power supply through a lead.
The screen 5 is connected with the vibrating device 10.
The sand collecting device 1 is provided with a control valve 2.
The number of the fixing rods 9 is four.
The main body of the control valve 2 is a rotary valve with a controllable opening size.
The working principle of the invention is as follows: the marking rod plays a role in measurement and support, is connected and fixed with a sand collecting device through two fixing bolts, two movable bolts and four fixing rods, the lower end of the sand collecting device is connected with a control valve, the control valve is a sand discharging part of the sand discharging device, the upper end of a sand discharging hose is connected with the bottom of the control valve, the other end of the sand discharging hose is connected with a splash guard, the bottom of the splash guard 4 is connected with a screen for screening sandy soil, the two ends of the screen are connected with a vibrating device, the two fixing rods are connected with the marking rod through the movable bolts, the vibrating device is connected with an external power supply, a main body of the control valve is a rotary valve with a controllable opening at the bottom, the size of meshes of the screen is selected according to the size of particles for preparing a sandy soil sample, and the vibrating.
In order to overcome the defects that a traditional sand rain method sample preparation device is heavy, high in energy consumption, difficult to replace a screen, difficult to control the falling height of a sand sample and large in flow and flow rate change of the sand sample along with the progress of an experiment, the selected control valve can control the sand discharging condition of a sand discharging port, and can achieve the effect of stopping the sand sample immediately after use, so that the replacement of the lower screen is more convenient, and the repeatability of the experiment is improved. The screen mesh further enables sandy soil to be scattered more evenly under the assistance of the vibrating device, a sandy soil sample with higher uniformity and repeatability is prepared, and the scale on the side face of the screen mesh has the supporting function and can control and observe the falling height of a sand body.
In the working process of the sand collecting device, sandy soil in the sand collecting device flows downwards, falls onto the screen at a certain flow rate under the control of the control valve, and uniformly falls into the model box through full vibration and dispersion of the screen.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature, and in the description of the invention, "plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.
In the description herein, reference to the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.
Claims (9)
1. The utility model provides a "one-stop" sand rain legal system appearance device and application method thereof, includes sand collection device (1), its characterized in that: sand collection device (1) connect splashproof net (4) through sand outlet hose (3), splashproof net (4) below install screen cloth (5), sand collection device (1) one side be equipped with sighting rod (6), sighting rod (6) on install fixing bolt (7), fixing bolt (7) below be equipped with movable bolt (8), movable bolt (8) connect vibrating device (10) through dead lever (9).
2. The one-stop sand rain sampling device and the use method thereof according to claim 1 are characterized in that: the using method comprises the following steps:
s1, pouring a certain amount of sandy soil into the sand collecting device (1), and adjusting the fixed rod (9) to a sandy soil falling height position required by an experiment through the movable bolt (8) when a soil sample is prepared;
s2, starting the vibration device (10), opening the control valve (2), controlling the falling flow and the flow rate of the sand body according to the difference of the opening size of the control valve (2), and keeping the flow and the flow rate constant in the time required by the experiment;
s3, allowing sandy soil to flow downwards, enabling the sandy soil to flow out of the sand outlet hose (3) and fall into the screen (5) at a certain flow speed and flow rate, and uniformly scattering the sandy soil into the model box (11) by the screen (5) under the vibration action of the vibration device (10) to prepare a sandy soil sample required by the indoor geotechnical model test.
3. The one-stop sand rain sampling device and the use method thereof according to claim 1 are characterized in that: the fixing bolt (7) is connected with the sand collecting device (1) through the fixing rod (9).
4. The one-stop sand rain sampling device and the use method thereof according to claim 1 are characterized in that: a model box (11) is arranged below the screen (5).
5. The one-stop sand rain sampling device and the use method thereof according to claim 1 are characterized in that: one side of the vibration device (10) is connected with an external power supply (12) through a lead.
6. The one-stop sand rain sampling device and the use method thereof according to claim 1 are characterized in that: the screen (5) is connected with the vibrating device (10).
7. The one-stop sand rain sampling device and the use method thereof according to claim 1 are characterized in that: the sand collecting device (1) is provided with a control valve (2).
8. The one-stop sand rain sampling device and the use method thereof according to claim 1 are characterized in that: the number of the fixing rods (9) is four.
9. The one-stop sand rain sampling device and the use method thereof according to claim 7 are characterized in that: the main body of the control valve (2) is a rotary valve with a controllable opening size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910956342.3A CN110653153A (en) | 2019-10-10 | 2019-10-10 | One-stop sand rain method sample preparation device and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910956342.3A CN110653153A (en) | 2019-10-10 | 2019-10-10 | One-stop sand rain method sample preparation device and use method thereof |
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| CN110653153A true CN110653153A (en) | 2020-01-07 |
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| CN201910956342.3A Pending CN110653153A (en) | 2019-10-10 | 2019-10-10 | One-stop sand rain method sample preparation device and use method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113447636A (en) * | 2021-06-16 | 2021-09-28 | 西安理工大学 | Sand rain device |
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| JP2003230847A (en) * | 2002-02-08 | 2003-08-19 | Kurimoto Ltd | Device for screening earth and sand |
| CN103278612A (en) * | 2013-04-26 | 2013-09-04 | 上海交通大学 | Sand rain-type filling device for geotechnical engineering model test |
| CN104764641A (en) * | 2015-03-29 | 2015-07-08 | 大连理工大学 | Sand rain process automatic sander |
| CN204479379U (en) * | 2015-03-29 | 2015-07-15 | 大连理工大学 | The automatic sander of sand rain method |
| CN204496292U (en) * | 2015-03-29 | 2015-07-22 | 大连理工大学 | Sand rain method current velocity controller |
| CN106802251A (en) * | 2015-11-26 | 2017-06-06 | 山东科技大学 | A kind of controllable sand rain method sand shake-out device of automatic stop-off flow |
| CN206763854U (en) * | 2017-03-29 | 2017-12-19 | 长沙昆拓铸造有限责任公司 | A kind of sand dividing device |
| CN107782593A (en) * | 2017-09-18 | 2018-03-09 | 东南大学 | Packaged type sand leakage device and prepare the method for making sample of sand using it |
| CN210847122U (en) * | 2019-10-10 | 2020-06-26 | 江苏科技大学 | One-stop sand rain method sample preparation device |
-
2019
- 2019-10-10 CN CN201910956342.3A patent/CN110653153A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003230847A (en) * | 2002-02-08 | 2003-08-19 | Kurimoto Ltd | Device for screening earth and sand |
| CN103278612A (en) * | 2013-04-26 | 2013-09-04 | 上海交通大学 | Sand rain-type filling device for geotechnical engineering model test |
| CN104764641A (en) * | 2015-03-29 | 2015-07-08 | 大连理工大学 | Sand rain process automatic sander |
| CN204479379U (en) * | 2015-03-29 | 2015-07-15 | 大连理工大学 | The automatic sander of sand rain method |
| CN204496292U (en) * | 2015-03-29 | 2015-07-22 | 大连理工大学 | Sand rain method current velocity controller |
| CN106802251A (en) * | 2015-11-26 | 2017-06-06 | 山东科技大学 | A kind of controllable sand rain method sand shake-out device of automatic stop-off flow |
| CN206763854U (en) * | 2017-03-29 | 2017-12-19 | 长沙昆拓铸造有限责任公司 | A kind of sand dividing device |
| CN107782593A (en) * | 2017-09-18 | 2018-03-09 | 东南大学 | Packaged type sand leakage device and prepare the method for making sample of sand using it |
| CN210847122U (en) * | 2019-10-10 | 2020-06-26 | 江苏科技大学 | One-stop sand rain method sample preparation device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113447636A (en) * | 2021-06-16 | 2021-09-28 | 西安理工大学 | Sand rain device |
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