CN111751244A - Repeated automatic-circulation disintegration-resistant test box and test method - Google Patents

Repeated automatic-circulation disintegration-resistant test box and test method Download PDF

Info

Publication number
CN111751244A
CN111751244A CN202010604380.5A CN202010604380A CN111751244A CN 111751244 A CN111751244 A CN 111751244A CN 202010604380 A CN202010604380 A CN 202010604380A CN 111751244 A CN111751244 A CN 111751244A
Authority
CN
China
Prior art keywords
disintegration
sample
water tank
water
box
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010604380.5A
Other languages
Chinese (zh)
Inventor
苏雪雪
唐辉明
方堃
安鹏举
夏丁
张勃成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China University of Geosciences
Original Assignee
China University of Geosciences
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China University of Geosciences filed Critical China University of Geosciences
Priority to CN202010604380.5A priority Critical patent/CN111751244A/en
Publication of CN111751244A publication Critical patent/CN111751244A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The invention provides a disintegration-resistant test box capable of being set for multiple cycles and a test method, and the disintegration-resistant test box comprises a box body, a screen cylinder and a water tank, wherein the screen cylinder and the water tank are both arranged in the box body, a weighing device and a drainage pipe are arranged below the water tank, the screen cylinder is a hollow cylindrical cylinder, screen holes are fully distributed on the screen cylinder, a rotating shaft is arranged on the axis of the screen cylinder, one end part of the rotating shaft is connected with a driving motor, the driving motor is fixed on the inner wall of the box body, and an electric heating wire is wound on the rotating shaft. The invention has the beneficial effects that: the disintegration-resistant test box can realize full-automatic operation of a disintegration-resistant test, consumes less labor for the disintegration-resistant test, reduces test cost, saves time and labor, and is simple to operate; and the disintegration-resistant test box does not need to transfer the sample in the test process, so that the error caused by the crushing of the sample in the disintegration test is solved, and the test result is more accurate and reliable.

Description

Repeated automatic-circulation disintegration-resistant test box and test method
Technical Field
The invention relates to the technical field of geotechnical engineering, in particular to a disintegration-resistant test box capable of automatically circulating for multiple times and a test method.
Background
Various rocks in the nature, such as claystone, shale, mudstone and the like, are easily disintegrated under dry and wet circulation conditions of circulating rainfall and water level fluctuation, and the properties are degraded. The disintegration resistance of the rock is the capability of resisting softening and disintegration of the rock, is important for evaluating the physical and mechanical properties and engineering characteristics of the rock, and is generally measured by a special disintegration resistance test and expressed by a disintegration resistance index.
The disintegration resistance test developed in the laboratory is carried out according to the standard of the test method of engineering rock mass (GB/T50266-2013) of the standard of the people's republic of China, and the main steps of the test comprise: and (2) placing the cooled sample after being baked for 24 hours at the temperature of 105-110 ℃ into a cylindrical sieve drum of a disintegration tester, then placing the sieve drum into a water tank, injecting distilled water, rotating for 10 minutes at the rotating speed of 20r/min, baking the sieve drum with the sample in an oven at the temperature of 105-110 ℃ for 24 hours, weighing the mass, repeating the steps, and calculating to obtain the disintegration resistance index of multiple rock disintegration cycles.
The conventional method needs to carry out transferring and weighing operations on the disintegrating sample during multiple disintegrating cycles, the operation process is time-consuming and labor-consuming, and the sample is easy to be broken by human factors in the transferring process, so that test errors are caused.
Disclosure of Invention
In order to solve the above problems, the invention provides a disintegration-resistant test box capable of being provided with multiple cycles and a test method, the disintegration-resistant test box comprises a box body, a screen cylinder and a water tank, the screen cylinder and the water tank are both arranged in the box body, a weighing device and a water discharge pipe are arranged below the water tank, a water discharge port is arranged at the bottom of the water tank, one end of the water discharge pipe is opposite to the water discharge port at the bottom of the water tank, the other end of the water discharge pipe penetrates through the side wall of the box body and extends out of the box body, the screen cylinder is a hollow cylindrical cylinder body, screen holes are fully distributed on the screen cylinder, a rotating shaft is arranged on the axis of the screen cylinder, two ends of the rotating shaft penetrate through the screen cylinder, one end part of the rotating shaft is connected with a driving motor, the driving motor is fixed on the inner wall of the box body, an electric heating, the heating wire is used for heating and drying the disintegration sample, and the weighing device is used for measuring the mass of the sample fragments disintegrated on the disintegration sample in the water tank.
Further, still be equipped with a raceway in the box, raceway one end is passed outside the box lateral wall extends to the box, a telescoping device is connected to the other end downwards, the telescoping device below is connected with a delivery port and a rubber buffer, be equipped with the water pump on the raceway, the water pump is used for passing through delivery port water delivery in toward the basin, thereby the telescoping device is used for going up and down thereby the shutoff of rubber buffer or opening the outlet of basin bottom.
Further, a water level sensor and a position sensor are further arranged below the telescopic device, the water level sensor is used for sensing the liquid level of water in the water tank, and the position sensor is used for sensing the telescopic length of the telescopic device so as to sense the position of the rubber plug.
Furthermore, a box door is arranged on the box body, a handle is arranged on the box door, and the box door and the water tank are both made of transparent materials, so that a tester can conveniently observe the conditions in the box.
Furthermore, a filter screen is arranged in the water outlet and is used for preventing sample fragments disintegrated on the disintegration sample in the water tank from being discharged from the water outlet along with the water in the water tank.
Furthermore, two exhaust ports are further arranged at the top of the box body and used for exhausting steam in the box body when the heating wire is used for baking and drying the disintegrated sample and the sample fragments.
Further, a temperature sensor is arranged in the box body and used for sensing the temperature in the box body.
Furthermore, a screen drum cover is arranged on the screen drum and is connected to the screen drum in an openable mode through a connecting piece, and therefore a tester can conveniently place a sample to be disintegrated into the screen drum.
Further, the sieve holes on the sieve cylinder are round holes with the diameter smaller than 2 mm.
The invention provides a test method based on the disintegration-resistant test box, which comprises the following steps:
(1) firstly, weighing a dried sample to be disintegrated to obtain the initial mass M0 of the sample to be disintegrated, and putting the sample to be disintegrated into a screen cylinder;
(2) injecting water into the water tank until the water surface reaches 2/3 of the water tank, so that the sample to be disintegrated in the screen cylinder is soaked in the water tank;
(3) the driving motor drives the screen drum to rotate at a constant speed of 20r/min for 10min, part of rock blocks of the disintegrated sample are crushed into sample fragments, and the sample fragments fall into the water tank through the plug holes;
(4) draining water in the water tank;
(5) heating the electric heating wire to 105 ℃ in the box body 1, keeping for 24 hours, baking and drying the disintegrated sample and the sample fragments in the water tank;
(6) after baking and drying are finished, stopping heating, recovering the temperature of the box body to normal temperature, and acquiring the mass M1 of the sample fragments falling into the water tank from the disintegration sample subjected to the primary disintegration-resistant test by the weighing device to finish the primary disintegration-resistant test;
(7) repeating the steps 2-6, obtaining the mass Mn of the disintegration sample of the n disintegration resistant test, and calculating the disintegration resistant coefficient Id nThe disintegration resistance coefficient is calculated by the formula
Id n＝(M0-Mn)/M0*100％
Id nThe disintegration resistance coefficient of the nth disintegration resistance test is shown; m0 is the initial mass of the disintegrated sample; and Mn is the mass of the sample fragments in the water tank of the n times of disintegration resistance tests.
The disintegration-resistant test box capable of being set for multiple cycles has the beneficial effects that: the disintegration-resistant test box can realize full-automatic operation of a disintegration-resistant test, consumes less labor for the disintegration-resistant test, reduces test cost, saves time and labor, and is simple to operate; and the disintegration-resistant test box does not need to transfer the sample in the test process, so that the error caused by the crushing of the sample in the disintegration test is solved, and the test result is more accurate and reliable.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a multiple automatic cycle disintegration resistant test chamber of the present invention.
Fig. 2 is a schematic structural view of the internal components of the case 1 of fig. 1.
Fig. 3 is a schematic structural view of the screen cylinder 14 and the rotating shaft in fig. 1.
Fig. 4 is a schematic structural view of the expansion device 15 and the water pipe 17 in fig. 1.
In the figure: 1-box body, 2-exhaust hole, 3-temperature sensor, 4-handle, 5-box door, 6-controller, 61-display panel, 62-control button, 7-drain pipe, 8-weighing sensor, 9-weighing platform, 10-water tank, 11-driving motor, 12-rotating shaft, 13-heating wire, 14-screen cylinder, 141-screen cylinder cover, 142-connecting piece, 15-telescoping device, 151-water inlet, 152-rubber plug, 153-position sensor, 154-water level sensor, 16-water conveying pump and 17-water conveying pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 to 4, a disintegration-resistant test chamber capable of being set for multiple cycles includes a chamber body 1, a screen cylinder 14, a water tank 10 and a water pipe 17; the box body 1 is provided with a box door 5, the box door 5 is provided with a handle 4, the sieve cylinder 14 and the water tank 10 are both arranged in the box body 1, a weighing device and a drain pipe 7 are arranged below the water tank 10, preferably, the box door 1 and the water tank 10 are both made of transparent materials, so that a tester can conveniently observe the condition of the box body 1, the weighing device comprises a weighing sensor 8 and a weighing platform 9, the weighing sensor 8 is fixed at the bottom of the box body 1, the weighing platform 9 is arranged between the weighing sensor 8 and the water tank 10, the weighing platform 9 is used for supporting the water tank 10, the weighing sensor 8 is used for measuring the mass of sample fragments disintegrated on a disintegration sample contained in the water tank 10, the bottom of the water tank 10 is provided with a drain port, one end of the drain pipe 7 is provided with a water receiving port, and the water receiving port is positioned right below a, the water receiving port is opposite to the water outlet, the other end of the drain pipe 7 penetrates through the side wall of the box body 1 and extends out of the box body 1, the water receiving port is used for containing water flowing out of the water outlet and guiding the water in the water tank 10 out of the box body 1 through the drain pipe 7, preferably, a filter screen is arranged in the water outlet and is used for preventing sample fragments in the water tank 10 from being discharged from the water outlet.
The screen cylinder 14 is a hollow cylindrical cylinder, and the screen cylinder 14 is covered with screen holes, preferably, the sieve holes are round holes with the diameter less than 2mm, the sieve drum 14 is provided with a sieve drum cover 141, the screen cylinder cover 141 is openably connected to the screen cylinder 14 through a connecting piece 142, a rotating shaft 12 is provided on the axis of the screen cylinder 14, the two ends of the rotating shaft 12 penetrate through the screen drum 14, one end part of the rotating shaft 12 is connected with a driving motor 11, the driving motor 11 is fixed on the inner wall of the box body 1, the rotating shaft 12 is also wound with an electric heating wire 13, the screen drum 14 is positioned above the water tank 10, and does not contact with the water tank 10, the sieve cylinder 14 is filled with samples to be disintegrated, the samples are mainly rock blocks, the driving motor 11 is used for driving the screen drum 14 to rotate, and the heating wire 13 is used for heating and drying the sample to be disintegrated contained in the screen drum 14 and the sample fragments in the water tank 10.
One end of the water delivery pipe 17 is connected with a water source (such as a water tank), the other end of the water delivery pipe 17 penetrates through the side wall of the box body 1 and extends into the box body 1, and the end part is connected with a telescopic device 15 downwards, a water delivery pump 16 is arranged on the water delivery pipe 17, the telescopic device 15 is located above the water tank 10, a water outlet 151, a rubber plug 152, a position sensor 153 and a water level sensor 154 are connected below the telescopic device 15, the water outlet 151 is communicated with the water delivery pipe 17, the water delivery pump 16 is used for delivering water in a water source into the water tank 10 through the water outlet 151, the telescopic device 15 is used for driving the rubber plug 152 to lift and lower so as to close or open the water outlet at the bottom of the water tank 10, the position sensor 153 is used for sensing the telescopic length of the telescopic device 15, thereby sensing the position of the rubber stopper 152, and the water level sensor 154 is used to sense the water level in the water tank 10.
Further, a temperature sensor 3 is arranged in the box body 1, two exhaust holes 2 are arranged at the top of the box body 1, a controller 6 is arranged above a box door 5 of the box body 1, the exhaust holes 2 are used for discharging water vapor in the box body 1, the temperature sensor 3 is used for sensing the temperature in the box body 1, a display panel 61 and a control button 62 are arranged on the controller 6, the controller 6 is used for acquiring data sensed by a position sensor 153, a water level sensor 154, the temperature sensor 3 and a weighing sensor 8, controlling a driving motor 11, a water delivery pump 16, a heating wire 13 and a telescopic device 15 at the same time, calculating the disintegration resistant coefficient of the sample to be disintegrated according to the sensed data, and the display panel is used for displaying the data sensed by each sensor, the working data of the disintegration resistant test box and the test result of the disintegration resistant coefficient of the rock sample to be disintegrated, the control button is used for the tester to input test data and control the disintegration-resistant test box.
A test method based on the disintegration-resistant test box capable of being set for multiple cycles comprises the following steps:
(1) firstly, weighing a dried sample to be disintegrated to obtain the initial mass M0 of the sample to be disintegrated, opening the box door 5, putting the dried sample to be disintegrated into the screen cylinder 14 from the screen cylinder cover 141, and then closing the screen cylinder cover 141;
(2) the expansion device 15 drives the rubber plug 152 to descend to block the water outlet of the water tank 10, the water delivery pump 16 delivers water into the water tank 10 until the water surface reaches the height 2/3 of the water tank 10, and the sample to be disintegrated in the screen cylinder 14 is soaked in the water tank 10;
(3) the driving motor 11 drives the screen drum 14 to rotate at a constant speed of 20r/min for 10min, part of rock blocks of the disintegrated sample are crushed into sample fragments, and the sample fragments fall into the water tank 10 through the plug holes;
(4) the expansion device 15 retracts to drive the rubber plug 152 to ascend, a water outlet is opened, and water in the water tank 10 is discharged through the water discharge pipe 7;
(5) heating the electric heating wire 13 to 105 ℃ in the box body 1, keeping for 24 hours, baking and drying the disintegrated sample and the sample fragments in the water tank;
(6) after baking and drying are finished, stopping heating, recovering the temperature of the box body 1 to normal temperature, and acquiring the mass M1 of sample fragments falling from the disintegration sample subjected to the primary disintegration-resistant test by the weighing device to finish the primary disintegration-resistant test;
(7) repeating the steps 2-6, obtaining the mass Mn of the disintegration sample of the n disintegration resistant test, and calculating the disintegration resistant coefficient Id nThe disintegration resistance coefficient is calculated by the formula
Id n＝(M0-Mn)/M0*100％
Id nThe disintegration resistance coefficient of the nth disintegration resistance test is shown; m0 is the initial mass of the disintegrated sample; and Mn is the mass of the sample fragments in the water tank of the n times of disintegration resistance tests.
The disintegration-resistant test box capable of being set for multiple cycles has the beneficial effects that: the disintegration-resistant test box can realize full-automatic operation of a disintegration-resistant test, consumes less labor for the disintegration-resistant test, reduces test cost, saves time and labor, and is simple to operate; and the disintegration-resistant test box does not need to transfer the sample in the test process, so that the error caused by the crushing of the sample in the disintegration test is solved, and the test result is more accurate and reliable.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The features of the embodiments and embodiments described herein above may be combined with each other without conflict.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. The utility model provides a can set up resistant proof box that disintegrates of manifold cycles which characterized in that: comprises a box body, a screen drum and a water tank, wherein the screen drum and the water tank are both arranged in the box body, a weighing device and a water discharge pipe are arranged below the water tank, a water outlet is arranged at the bottom of the water tank, one end of the water outlet is over against the water outlet at the bottom of the water tank, the other end of the water outlet penetrates through the side wall of the box body and extends out of the box body, the screen drum is a hollow cylindrical drum body, screen holes are fully distributed on the screen drum, a rotating shaft is arranged on the axis of the screen drum, two ends of the rotating shaft penetrate through the screen drum, one end part of the rotating shaft is connected with a driving motor, the driving motor is fixed on the inner wall of the box body, the rotating shaft is wound with an electric heating wire, the screen cylinder is used for containing a sample to be disintegrated, the driving motor is used for driving the screen drum to rotate through the rotating shaft, the electric heating wire is used for heating and drying the disintegrated sample, the weighing device is used for measuring the mass of the sample fragments disintegrated from the disintegrated sample in the water tank.
2. A disintegration-resistant test chamber set forth in claim 1, wherein: still be equipped with a raceway in the box, raceway one end is passed the box lateral wall extends to outside the box, a telescoping device of other end downwardly connected, the telescoping device below is connected with a delivery port and a rubber buffer, be equipped with water pump on the raceway, water pump is used for passing through delivery port toward water injection in the basin, thereby the telescoping device is used for going up and down thereby the shutoff of rubber buffer or opening the outlet of bottom of the water tank.
3. A disintegration-resistant test chamber capable of being set for multiple cycles according to claim 2, wherein: the telescopic device is characterized in that a water level sensor and a position sensor are further arranged below the telescopic device, the water level sensor is used for sensing the liquid level of water in the water tank, and the position sensor is used for sensing the telescopic length of the telescopic device so as to sense the position of the rubber plug.
4. A disintegration-resistant test chamber set forth in claim 1, wherein: the box body is provided with a box door, the box door is provided with a handle, and the box door and the water tank are both made of transparent materials, so that a tester can observe the conditions in the box conveniently.
5. A disintegration-resistant test chamber set forth in claim 1, wherein: and a filter screen is arranged in the water outlet and is used for preventing sample fragments disintegrated on the disintegration sample in the water tank from being discharged from the water outlet along with the water in the water tank.
6. A disintegration-resistant test chamber set forth in claim 1, wherein: the top of the box body is also provided with two air vents, and the air vents are used for discharging water vapor in the box body when the electric heating wire is used for baking and drying the disintegrating sample and sample fragments.
7. A disintegration-resistant test chamber set forth in claim 1, wherein: still be equipped with a temperature sensor in the box, temperature sensor is used for the temperature in the sensing box.
8. A disintegration-resistant test chamber set forth in claim 1, wherein: the screen drum is provided with a screen drum cover, and the screen drum cover is connected to the screen drum in an openable manner through a connecting piece, so that a tester can conveniently place a sample to be disintegrated into the screen drum.
9. The disintegration-resistant test chamber of claim 1, wherein: and the sieve holes on the sieve drum are round holes with the diameter smaller than 2 mm.
10. A test method based on a disintegration resistant test chamber which can be set for multiple cycles according to any one of claims 1 to 9, characterized by comprising the steps of:
(1) firstly, weighing a dried sample to be disintegrated to obtain the initial mass M0 of the sample to be disintegrated, and putting the sample to be disintegrated into a screen cylinder;
(2) injecting water into the water tank until the water surface reaches 2/3 of the water tank, so that the sample to be disintegrated in the screen cylinder is soaked in the water tank;
(3) the driving motor drives the screen drum to rotate at a constant speed of 20r/min for 10min, part of rock blocks of the disintegrated sample are crushed into sample fragments, and the sample fragments fall into the water tank through the plug holes;
(4) draining water in the water tank;
(5) heating the electric heating wire to 105 ℃ in the box body 1, keeping for 24 hours, baking and drying the disintegrated sample and the sample fragments in the water tank;
(6) after baking and drying are finished, stopping heating, recovering the temperature of the box body to normal temperature, and acquiring the mass M1 of the sample fragments falling into the water tank from the disintegration sample subjected to the primary disintegration-resistant test by the weighing device to finish the primary disintegration-resistant test;
(7) repeating the steps 2-6, obtaining the mass Mn of the disintegration sample of the n disintegration resistant test, and calculating the disintegration resistant coefficient Id nThe disintegration resistance coefficient is calculated by the formula
Id n＝(M0-Mn)/M0*100％
Id nThe disintegration resistance coefficient of the nth disintegration resistance test is shown; m0 is the initial mass of the disintegrated sample; and Mn is the mass of the sample fragments in the water tank of the n times of disintegration resistance tests.
CN202010604380.5A 2020-06-29 2020-06-29 Repeated automatic-circulation disintegration-resistant test box and test method Pending CN111751244A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010604380.5A CN111751244A (en) 2020-06-29 2020-06-29 Repeated automatic-circulation disintegration-resistant test box and test method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010604380.5A CN111751244A (en) 2020-06-29 2020-06-29 Repeated automatic-circulation disintegration-resistant test box and test method

Publications (1)

Publication Number Publication Date
CN111751244A true CN111751244A (en) 2020-10-09

Family

ID=72676793

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010604380.5A Pending CN111751244A (en) 2020-06-29 2020-06-29 Repeated automatic-circulation disintegration-resistant test box and test method

Country Status (1)

Country Link
CN (1) CN111751244A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114609363A (en) * 2022-01-24 2022-06-10 中国地质调查局成都地质调查中心（西南地质科技创新中心） Multifunctional soft rock disintegration measuring device and testing method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114609363A (en) * 2022-01-24 2022-06-10 中国地质调查局成都地质调查中心（西南地质科技创新中心） Multifunctional soft rock disintegration measuring device and testing method
CN114609363B (en) * 2022-01-24 2023-11-24 中国地质调查局成都地质调查中心（西南地质科技创新中心） Multifunctional soft rock disintegration measuring device and testing method

Similar Documents

Publication Publication Date Title
CN104101563B (en) Portable spontaneous imbibition measuring device
CN108760611B (en) A kind of concrete formation-full-automatic experimental rig of erosion-detection and its application method
CN212301198U (en) Disintegration-resistant test box capable of being provided with multiple cycles
CN103063818B (en) Wetting-drying cycle tester for water rock
CN110702466B (en) Hydrology monitoring devices
CN112229760B (en) Automatic sand filling instrument for measuring compactness of roadbed
CN111751244A (en) Repeated automatic-circulation disintegration-resistant test box and test method
CN208205805U (en) A kind of Muffle furnace
CN108333069A (en) A kind of soil anti-scouribility measurement device
CN208420463U (en) A kind of automatic sampling device during chemical industry synthesis
CN205607727U (en) Device of different moisture content ground samples of accurate preparation
CN105806676A (en) Device for accurately preparing rock-soil samples with different moisture contents
CN111610306B (en) Simulation experiment device for reforming effect of hydrocarbon-generating fluid on rock reservoir
CN209469428U (en) Well cementation flushing liquor flush efficiency detection device
CN111521755A (en) Testing device and testing method for research on single-side water-soaking disintegration characteristics of mudstone
CN116124821A (en) Automatic test device for testing durability of concrete
CN204101463U (en) Pork freshness pick-up unit
CN216484468U (en) Automatic testing arrangement of sand saturation surface dry water absorption rate based on wet mark method
CN109959763A (en) A kind of air environment monitoring equipment
CN213364508U (en) Gypsum board surface water absorption rate tester
CN105181520A (en) Rock sample stability experiment apparatus and rock sample stability experiment method
CN205352802U (en) Be used for rock to force water -saturated device
CN208012991U (en) A kind of soil anti-scouribility measurement device
CN116202928A (en) Visual temperature control phase change plugging tester and testing method
CN110220814B (en) Parameter determination device and method for multi-metal nodule

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination