CN112525775A - Anti-adhesion hydrophobicity quantitative detection method and device based on anti-adhesion conveying belt - Google Patents
Anti-adhesion hydrophobicity quantitative detection method and device based on anti-adhesion conveying belt Download PDFInfo
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- CN112525775A CN112525775A CN202011428233.3A CN202011428233A CN112525775A CN 112525775 A CN112525775 A CN 112525775A CN 202011428233 A CN202011428233 A CN 202011428233A CN 112525775 A CN112525775 A CN 112525775A
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- 238000001514 detection method Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 85
- 238000012360 testing method Methods 0.000 claims abstract description 38
- 238000010521 absorption reaction Methods 0.000 claims abstract description 37
- 239000012153 distilled water Substances 0.000 claims abstract description 23
- 238000003860 storage Methods 0.000 claims abstract description 8
- 239000002352 surface water Substances 0.000 claims abstract description 8
- 238000005303 weighing Methods 0.000 claims abstract description 7
- 238000004140 cleaning Methods 0.000 claims abstract description 6
- 238000005498 polishing Methods 0.000 claims abstract description 6
- 239000000725 suspension Substances 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 12
- 230000002209 hydrophobic effect Effects 0.000 claims 1
- 238000001179 sorption measurement Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000004566 building material Substances 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- -1 metallurgy Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N13/00—Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; Analysing materials by determining surface, boundary, or diffusion effects
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Abstract
The invention discloses an anti-adhesion hydrophobicity quantitative detection method based on an anti-adhesion conveyer belt, which comprises the steps of polishing the surface of the anti-adhesion conveyer belt, cleaning, and standing for at least 30 minutes to obtain a sample to be detected; placing the sample to be tested in an inclined manner, and uniformly hanging drops on the sample to be tested through distilled water at the upper end of the sample to be tested; after the distilled water suspension drop is finished, covering the surface of the sample to be detected with water absorption test paper, weighing the water absorption test paper after the water absorption test paper absorbs water to obtain the surface water storage mass of the sample to be detected, and quantitatively reflecting the anti-adhesion hydrophobicity of the anti-adhesion conveyer belt through the surface water storage mass and the surface area of the sample to be detected; an anti-adhesion hydrophobicity quantitative detection device based on an anti-adhesion conveying belt comprises a trickling pipe, a trickling pipe bracket, a sample bracket and a tray; the scheme of the invention is simple and feasible, and provides a technical basis for detecting the anti-adhesion hydrophobicity of the anti-adhesion conveyer belt.
Description
Technical Field
The invention belongs to the field of conveyor belt detection, and particularly relates to an anti-adhesion conveyor belt-based anti-adhesion hydrophobicity quantitative detection method and device.
Background
Conveyors are the most cost-effective method of industrial bulk material handling, and conveyor belts are the most important components. The rubber conveyer belt is the second most important rubber product next to tires and is mainly applied to national key industries supporting national economy and social development, such as coal, metallurgy, building materials, coke, power generation and the like.
Under general conditions, materials can be conveyed through the conveying belt in the form of blocks, particles, powder and the like with different shapes and sizes, the rubber conveying belt used in outdoor operation is easy to damp if wet or rainy and snowy weather occurs, the wet materials are easy to adhere to the surface of the conveying belt in the transportation process, the belt body is seriously abraded, and the wet materials enter a return section along with the conveying belt, so that the materials of a transportation line are accumulated, the problems of reduction of transportation efficiency, slippage of the belt body, structural deformation, breakage and the like are caused, once the problems occur, the rapid treatment on site is difficult, and great loss is brought to production.
At present, no uniform method and uniform standard exist for detecting the anti-adhesion hydrophobicity of the anti-adhesion conveyer belt, and currently, detection methods for related industries, such as plastic films, exist, and the detection methods can be partially suitable for placing the anti-adhesion conveyer belt, but the detection effect cannot achieve the expected effect, so that a method for quantitatively detecting the anti-adhesion hydrophobicity of the anti-adhesion conveyer belt is urgently needed.
Disclosure of Invention
In order to solve the problems, the invention provides an anti-adhesion hydrophobicity quantitative detection method based on an anti-adhesion conveying belt, which comprises the following steps:
s1, polishing the surface of an anti-adhesion conveying belt, cleaning, and then placing for at least 30 minutes to obtain a sample to be tested;
s2, obliquely placing the sample to be detected, and uniformly hanging drops on the sample to be detected through distilled water at the upper end of the sample to be detected;
and S3, after the distilled water suspension drop is finished, covering the surface of the sample to be detected with water absorption test paper, weighing the water absorption test paper after the water absorption test paper absorbs water to obtain the surface water storage mass of the sample to be detected, and quantitatively reflecting the anti-adhesion hydrophobicity of the anti-adhesion conveyer belt through the surface water storage mass and the surface area of the sample to be detected.
Preferably, the S1 includes grinding the anti-adhesion conveyer belt by a grinding wheel of 60 meshes.
Preferably, the S1, further comprises preparing the anti-adhesion conveyer belt into a rectangle of 150mm × 250 mm.
Preferably, the S2 includes placing the sample to be tested at an angle of 24-30 °; and (3) arranging 50mm of distilled water at the upper end of the sample to be detected, and carrying out uniform hanging drop.
Preferably, the vertical distance between the distilled water and the sample to be tested is 25 mm;
the horizontal distance between the distilled water and the sample to be detected is 50 mm.
Preferably, the water absorption time of the water absorption test paper is 15 s.
An anti-adhesion hydrophobicity quantitative detection device based on an anti-adhesion conveying belt comprises a trickling pipe, a trickling pipe bracket, a sample bracket and a tray; the drip pipe bracket is vertically connected with the tray; the trickle tube is arranged on the trickle tube support, the sample to be tested is arranged on the sample support, the sample support is arranged in the tray, and the included angle between the sample support and the tray is 24-30 degrees.
Preferably, the dropping pipe is a 100-200ml burette, and the dropping pipe is provided with a valve through which the flow rate of the distilled water is controlled.
Preferably, the anti-adhesion hydrophobicity quantitative detection device further comprises a water absorption test paper and a water absorption test paper clamping device;
the water absorption test paper is used for absorbing residual water on the sample to be detected;
the water absorption test paper clamping device is used for clamping the water absorption test paper after water absorption.
The positive progress effects of the invention are as follows:
the method is simple and rapid, can quantitatively detect the anti-adhesion hydrophobicity of the anti-adhesion conveying belt, and provides a unified standard for the industry.
Drawings
Fig. 1 is a schematic view of the device of the present invention, wherein 1 is a dropping pipe, 2 is a dropping pipe support, 3 is a valve, 4 is a sample support, 5 is a tray, and 6 is a sample to be measured.
Detailed Description
The following description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings to describe the technical solutions of the present invention in detail, but not to limit the present invention to the scope of the embodiments described.
As shown in fig. 1, the present embodiment provides an anti-adhesion hydrophobicity quantitative determination method based on an anti-adhesion conveyer belt, including the following steps:
s1, polishing the surface of an anti-adhesion conveying belt, cleaning, and then placing for at least 30 minutes to obtain a to-be-detected sample 6;
s2, obliquely placing the sample to be detected, and uniformly hanging drops on the sample to be detected through distilled water at the upper end of the sample to be detected 6;
and S3, after the distilled water suspension drop is finished, covering the surface of the sample 6 to be detected with water absorption test paper, weighing the water absorption test paper after the water absorption test paper absorbs water to obtain the surface water storage mass of the sample 6 to be detected, and quantitatively reflecting the anti-adhesion hydrophobicity of the anti-adhesion conveyer belt through the surface water storage mass and the surface area of the sample to be detected.
The S1 includes sanding the anti-adhesion conveyor belt with a 60-mesh sanding wheel.
The S1, further comprising preparing the anti-adhesion conveyer belt into a rectangle of 150mm × 250 mm.
The step S2 includes that the sample to be tested is obliquely placed at 24-30 degrees; and (3) arranging 50mm of distilled water at the upper end of the sample 6 to be detected, and carrying out uniform hanging drop.
The vertical distance between the distilled water and the sample 6 to be tested is 25 mm;
the horizontal distance between the distilled water and the sample 6 to be tested is 50 mm.
The water absorption time of the water absorption test paper is 15 s.
An anti-adhesion hydrophobicity quantitative detection device based on an anti-adhesion conveying belt comprises a dropping pipe 1, a dropping pipe support 2, a sample support 4 and a tray 5; wherein, the drip pipe bracket 2 is vertically connected with the tray 5; the trickle tube 1 is arranged on the trickle tube support 2, the sample 6 to be tested is arranged on the sample support 4, the sample support 4 is arranged in the tray 5, and the included angle between the sample support 4 and the tray 5 is 24-30 degrees.
The dropping pipe 1 is a 100-200ml burette, the dropping pipe 1 is provided with a valve 3, and the dropping pipe 1 controls the flow rate of the distilled water through the valve 3.
The anti-adhesion hydrophobicity quantitative detection equipment further comprises water absorption test paper and a water absorption test paper clamping device;
the water absorption test paper is used for absorbing residual water on the sample to be detected;
the water absorption test paper clamping device is used for clamping the water absorption test paper after water absorption.
Pre-grind, adsorption contrast (to determine hydrophobicity, to simulate resistance to sticking after natural wear):
the technical solutions described in the present application are explained below by specific examples:
1. sample preparation: cutting a sample into a cuboid of 150mm multiplied by 250mm, polishing according to requirements, cleaning surface rubber powder by using a brush after polishing, and standing for more than 30 minutes for testing;
note: the mesh number of the grinding wheel is 60 meshes, and the condition is equal to that of abrasive paper for a roller of a wear tester;
the purpose of cleaning the polished rubber powder is to prevent the damping in water passing and inaccurate quality in weighing the adsorption paper.
2. Taking a stainless steel tray with the thickness of 500mm multiplied by 700mm, flatly placing a sample on a 24-degree inclination angle die, adding 50ml of distilled water into a burette, wherein the vertical position of a water outlet of the burette is 25mm away from the sample, and the vertical position of the water outlet is 50mm away from the upper inclination angle of the sample;
note: the inclination angle of the flat conveyer belt is generally not more than 24-30 degrees, and a 24-degree inclination angle die is self-made to facilitate the direct placing of a sample;
the water outlet is vertical to the sample and is 25mm away from the sample, so that a certain fall is formed to increase the water passing area;
the vertical position of the water outlet is 50mm away from the upper inclination angle of the sample so as not to splash water outside;
the stainless steel tray prevents the outflow of experimental water and keeps the site clean.
3. During the experiment, all valves are opened, 50mm distilled water naturally flows out under the self-pressure, and passes through the sample along the inclination angle;
note: the purpose of using a burette is that the falling water flow quality, pressure, flow rate are all equivalent;
the liquid water is distilled water, so that the consistency of test results is ensured.
4. Observing the free state of water flowing through the covering layer, immediately covering the water flow for 15 seconds by test paper (napkin) with the same area as the sample after the water flow stops, and then folding the test paper by using tweezers and putting the test paper into a balance tray for weighing;
note: recording the free state process of water flowing through the covering layer;
the water flow stops adsorbing for 15 seconds, so that the adsorption can be basically completely realized, and the defect of drying (timing by a stopwatch) exists after the adsorption is continued for a long time;
the moisture on the test paper is prevented from being adhered by hands, and the operation is more accurate by using tweezers;
5. calculating the residual water adsorption value in grams/cm2To characterize the hydrophobicity, i.e., anti-stick properties, of the conveyor belt; (test paper quality gram after water adsorption-test paper original quality gram)
(sample area 150 mm. times.250 mm. 375 cm)2) Is given as grams/cm2
Note: the value can be used for the enterprises to compare and discuss a suitable value together; the lower the residual moisture, the lower the square centimeter content proves that the surface of the rubber covering layer has stronger hydrophobicity and better anti-sticking effect;
6. and (4) supplementary notes: if the conveyor belt is used for detecting a large amount of anti-viscous grease, the liquid can be changed into low-grade engine oil, and the anti-viscosity of the conveyor belt can be determined by weighing the residual oil after the absorption in the same way. (in grams/cm 2).
7. And (4) supplementary notes: the 100-200ml burette is recommended to be customized, the water outlet is enlarged, and the water passing area can reach 30 percent and less than 50 percent of the total area of the sample during the experiment, so that the method is more intuitive and safer. (visual, can clearly see the free state of the liquid; safe, does not splash to the outside and ensures the accuracy of the quality data.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the scope of the present invention is defined by the claims.
Claims (9)
1. An anti-adhesion hydrophobicity quantitative detection method based on an anti-adhesion conveying belt is characterized by comprising the following steps:
s1, polishing the surface of an anti-adhesion conveying belt, cleaning, and then placing for at least 30 minutes to obtain a sample to be tested;
s2, obliquely placing the sample to be detected, and uniformly hanging drops on the sample to be detected through distilled water at the upper end of the sample to be detected;
and S3, after the distilled water suspension drop is finished, covering the surface of the sample to be detected with water absorption test paper, weighing the water absorption test paper after the water absorption test paper absorbs water to obtain the surface water storage mass of the sample to be detected, and quantitatively reflecting the anti-adhesion hydrophobicity of the anti-adhesion conveyer belt through the surface water storage mass and the surface area of the sample to be detected.
2. The method for quantitatively detecting the anti-adhesion hydrophobicity based on the anti-adhesion conveyer belt as claimed in claim 1,
the S1 includes sanding the anti-adhesion conveyor belt with a 60-mesh sanding wheel.
3. The method for quantitatively detecting the anti-adhesion hydrophobicity based on the anti-adhesion conveyer belt as claimed in claim 1,
the S1, further comprising preparing the anti-adhesion conveyer belt into a rectangle of 150mm × 250 mm.
4. The method for quantitatively detecting the anti-adhesion hydrophobicity based on the anti-adhesion conveyer belt as claimed in claim 1,
the step S2 includes that the sample to be tested is obliquely placed at 24-30 degrees; and (3) arranging 50mm of distilled water at the upper end of the sample to be detected, and carrying out uniform hanging drop.
5. The method for quantitatively detecting the anti-adhesion hydrophobicity based on the anti-adhesion conveyer belt as claimed in claim 4,
the vertical distance between the distilled water and the sample to be tested is 25 mm;
the horizontal distance between the distilled water and the sample to be detected is 50 mm.
6. The method for quantitatively detecting the anti-adhesion hydrophobicity based on the anti-adhesion conveyer belt as claimed in claim 1,
the water absorption time of the water absorption test paper is 15 s.
7. The anti-adhesion and hydrophobic quantitative detection device based on the anti-adhesion conveying belt as claimed in any one of claims 1 to 6, which comprises a dropping pipe, a dropping pipe bracket, a sample bracket and a tray; the drip pipe bracket is vertically connected with the tray; the trickle tube is arranged on the trickle tube support, the sample to be tested is arranged on the sample support, the sample support is arranged in the tray, and the included angle between the sample support and the tray is 24-30 degrees.
8. The anti-adhesion and hydrophobicity quantitative detection device based on the anti-adhesion conveying belt as claimed in claim 7,
the dropping pipe is a 100-200ml burette, the dropping pipe is provided with a valve, and the dropping pipe controls the flow rate of the distilled water through the valve.
9. The anti-adhesion and hydrophobicity quantitative detection device based on the anti-adhesion conveying belt as claimed in claim 7,
the anti-adhesion hydrophobicity quantitative detection equipment further comprises water absorption test paper and a water absorption test paper clamping device;
the water absorption test paper is used for absorbing residual water on the sample to be detected;
the water absorption test paper clamping device is used for clamping the water absorption test paper after water absorption.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011428233.3A CN112525775A (en) | 2020-12-07 | 2020-12-07 | Anti-adhesion hydrophobicity quantitative detection method and device based on anti-adhesion conveying belt |
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| CN202011428233.3A CN112525775A (en) | 2020-12-07 | 2020-12-07 | Anti-adhesion hydrophobicity quantitative detection method and device based on anti-adhesion conveying belt |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107789665A (en) * | 2017-10-31 | 2018-03-13 | 重庆理工大学 | A kind of preparation method of the super-hydrophobic hydroxyapatite film layer of Mg alloy surface |
| CN111337389A (en) * | 2020-04-01 | 2020-06-26 | 环晟光伏(江苏)有限公司 | Silicon wafer hydrophilicity detection device and detection method |
| CN111487165A (en) * | 2020-06-03 | 2020-08-04 | 中国计量大学 | Fabric oil repellency testing device and method |
| CN211505103U (en) * | 2020-01-16 | 2020-09-15 | 贵州省建材产品质量监督检验院 | Plate water absorption rate detection device |
| CN111982753A (en) * | 2020-07-28 | 2020-11-24 | 青岛海尔空调器有限总公司 | Method and system for detecting water drainage capacity of heat exchanger fin |
-
2020
- 2020-12-07 CN CN202011428233.3A patent/CN112525775A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107789665A (en) * | 2017-10-31 | 2018-03-13 | 重庆理工大学 | A kind of preparation method of the super-hydrophobic hydroxyapatite film layer of Mg alloy surface |
| CN211505103U (en) * | 2020-01-16 | 2020-09-15 | 贵州省建材产品质量监督检验院 | Plate water absorption rate detection device |
| CN111337389A (en) * | 2020-04-01 | 2020-06-26 | 环晟光伏(江苏)有限公司 | Silicon wafer hydrophilicity detection device and detection method |
| CN111487165A (en) * | 2020-06-03 | 2020-08-04 | 中国计量大学 | Fabric oil repellency testing device and method |
| CN111982753A (en) * | 2020-07-28 | 2020-11-24 | 青岛海尔空调器有限总公司 | Method and system for detecting water drainage capacity of heat exchanger fin |
Non-Patent Citations (1)
| Title |
|---|
| 王剑楠: "仿生多功能超疏水表面的制备研究", 《中国优秀硕士学位论文全文数据库 (工程科技Ⅰ辑)》 * |
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