Underwater non-dispersible concrete suspension content testing device

Abstract

The utility model discloses an underwater non-dispersible concrete suspension content testing device which comprises a material storage tank, a quantitative tank, a beaker, a peristaltic pump and a vacuum suction filtration assembly, the top and the bottom of the quantitative tank are respectively provided with a first material pushing assembly and a first material outlet, the beaker is located below the quantitative tank, a first material inlet is formed in the side face of the quantitative tank, and a second material outlet is formed in the bottom of the quantitative tank. The top and the bottom of the material storage tank are respectively provided with a second material pushing assembly and a second material outlet, the second material outlet is communicated with the first material inlet through a material conveying groove, one end of a hose arranged on the peristaltic pump extends into the beaker, and the other end of the hose is connected with the vacuum suction filtration assembly. The method comprises the following steps: dividing a concrete sample into a plurality of equal parts, putting the parts into a beaker filled with water part by part within a specified time, pumping the water into a vacuum suction filtration assembly by using a peristaltic pump, performing vacuum suction filtration, and separating suspended matters from the water by using filter paper in a Buchner funnel so as to weigh the suspended matters and obtain the content of the suspended matters in the water.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete detection, in particular to an underwater non-dispersible concrete suspended matter content testing device. Background Art

[0002] The anti-dispersion property of underwater non-dispersible concrete is one of its core characteristics. This property enables the concrete to maintain its original structure and performance when poured underwater, and the aggregate and mud will not separate under the action of water. The suspended matter content test is used to determine whether the anti-dispersion property of underwater non-dispersible concrete meets the requirements.

[0003] According to the existing test procedures, when measuring the suspended matter content of concrete samples, it is necessary to take an appropriate amount of concrete samples, manually divide the concrete samples into several equal parts, and put them into water one by one within a specified time. Finally, the anti-dispersion property of underwater non-dispersible concrete is measured by measuring the suspended matter content in the water.

[0004] Since the entire testing process is cumbersome and needs to be completed manually, the accuracy of the test results depends on the experience of the tester. When a large number of concrete samples need to be processed, it will also affect the test efficiency, cause greater work pressure on the testers, and further affect the accuracy of the test results. Summary of the invention

[0005] The utility model aims to provide an underwater non-dispersible concrete suspended matter content testing device in view of the problems existing in the prior art.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A device for testing the suspended matter content of underwater non-dispersible concrete comprises a storage tank, a quantitative tank, a beaker, a peristaltic pump and a vacuum filtration component, wherein the top and bottom of the quantitative tank are respectively provided with a first pushing component and a first discharge port, the beaker is located below the quantitative tank, a first feed port is provided on the side of the quantitative tank, a second pushing component and a second discharge port are respectively provided on the top and bottom of the storage tank, the second discharge port is communicated with the first feed port through a feed trough, and one end of a hose arranged on the peristaltic pump extends into the beaker, and the other end is connected to the vacuum filtration component.

[0008] The utility model can automatically process concrete samples. The concrete samples are divided into several equal parts through the cooperation between the storage tank and the quantitative tank. The concrete samples are put into the beaker filled with water one by one within a specified time. The peristaltic pump then pumps the water into the vacuum filtration component for vacuum filtration. The filter paper in the Büchner funnel is used to separate the suspended matter and the water, so that the suspended matter can be weighed to obtain the content of the suspended matter in the water.

[0009] When the peristaltic pump is pumping liquid, the peristaltic pump will not come into direct contact with the liquid, thereby avoiding contamination of the liquid and affecting the content of suspended matter in the liquid.

[0010] Preferably, the vacuum filtration assembly includes a vacuum pump, a filtration bottle, a Buchner funnel and a funnel cover. A rubber stopper is provided at the inlet of the filtration bottle. The liquid outlet pipe of the Buchner funnel passes through the rubber stopper and extends into the filtration bottle. An air outlet is provided on the side of the filtration bottle, and the air outlet is connected to the vacuum pump. The funnel cover is arranged on the Buchner funnel. A plurality of air vents are provided on the top of the funnel cover. A liquid inlet is provided on the side of the funnel cover, and the hose is connected to the liquid inlet.

[0011] After the solution enters the Büchner funnel, the air in the suction flask will be extracted under the action of the vacuum pump, causing the pressure inside the flask to be lower than the external atmospheric pressure. The water to be separated will flow into the suction flask, and the suspended matter will precipitate on the filter paper in the Büchner funnel.

[0012] Preferably, the first pushing assembly includes a first electric push rod and a first piston, the first electric push rod is arranged at the top of the quantitative tank, the first piston is located in the quantitative tank, the first electric push rod is connected to the first piston, the first piston and the quantitative tank are clearance-matched, and a flip cover is provided at the first discharge port, and the flip cover is rotatably connected to the quantitative tank through a reset shaft.

[0013] The first electric push rod pushes the first piston to put the concrete sample in the quantitative tank into the beaker to prevent the concrete sample from remaining in the quantitative tank. During this process, the flip cover will be pushed open.

[0014] Preferably, the first pushing assembly further includes a partition, the partition is arranged on the back side where the first piston is connected to the first electric push rod, the partition is arranged close to the inner wall of the quantitative tank, and the partition is used to block the feed trough.

[0015] During the movement of the first piston, the partition can prevent the concrete sample from entering the quantitative tank, thereby preventing the first piston from being stuck by the concrete sample.

[0016] Preferably, the second pushing assembly includes a second electric push rod and a second piston, the second electric push rod is arranged on the top of the storage tank, the second piston is located in the storage tank, the second electric push rod is connected to the second piston, and the second piston is clearance-matched with the storage tank.

[0017] The second electric push rod pushes the second piston to send the concrete sample in the storage tank into the quantitative tank, and ensures that the quantitative tank and the feed trough can be filled. Since the volume of the quantitative tank is fixed, the volume of the concrete sample sent into the quantitative tank each time is also fixed. The second electric push rod cooperates with the first electric push rod multiple times to divide the concrete sample into several equal parts.

[0018] Preferably, a second feed port is provided on the side of the storage tank, and the volume of the storage tank is not less than ten times the volume of the quantitative tank.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The utility model can automatically process concrete samples. Through the cooperation between a storage tank and a quantitative tank, the concrete samples are divided into several equal parts, and the parts are put into a beaker filled with water one by one within a specified time. The water is then pumped into a vacuum filtration component by a peristaltic pump for vacuum filtration. The filter paper in a Büchner funnel is used to separate suspended matter and water, so that the suspended matter can be weighed to obtain the content of the suspended matter in the water. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0022] Figure 2 The structure of the storage tank and the quantitative tank in the embodiment of the utility model is shown in FIG. Figure 1 ;

[0023] Figure 3 The structure of the storage tank and the quantitative tank in the embodiment of the utility model is shown in FIG. Figure 2 ;

[0024] In the figure: 1. Storage tank; 2. Measuring tank; 3. First pushing assembly; 301. First piston; 302. Partition; 4. Second pushing assembly; 401. Second piston; 5. Beaker; 6. Peristaltic pump; 7. Hose; 8. Vacuum pump; 9. Filter bottle; 10. Buchner funnel; 11. Funnel cover; 12. Feed trough. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as "middle", "upper", "lower", "left", "right", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0027] like Figures 1 to 3 As shown, the specific scheme of the embodiment is as follows: an underwater non-dispersible concrete suspended matter content testing device comprises a storage tank 1, a quantitative tank 2, a beaker 5, a peristaltic pump 6 and a vacuum filtration assembly, the storage tank 1 and the quantitative tank 2 are respectively arranged on a bracket, the overall height of the storage tank 1 is higher than the quantitative tank 2, the beaker 5 is located below the quantitative tank 2, and one end of a hose 7 arranged on the peristaltic pump 6 extends into the beaker 5, and the other end is connected to the vacuum filtration assembly.

[0028] The vacuum filtration assembly includes a vacuum pump 8, a filtration bottle 9, a Buchner funnel 10 and a funnel cover 11. A rubber stopper is provided at the inlet of the filtration bottle 9. The liquid outlet pipe of the Buchner funnel 10 passes through the rubber stopper and extends into the filtration bottle 9. An air outlet is provided on the side of the filtration bottle 9, and the air outlet is connected to the vacuum pump 8. The funnel cover 11 is arranged on the Buchner funnel 10. A plurality of ventilation holes are provided on the top of the funnel cover 11. A liquid inlet is provided on the side of the funnel cover 11, and the hose 7 is connected to the liquid inlet.

[0029] The top and bottom of the quantitative tank 2 are respectively provided with a first pushing assembly 3 and a first discharge port, the side of the quantitative tank 2 is provided with a first feed port, the top and bottom of the storage tank 1 are respectively provided with a second pushing assembly 4 and a second discharge port, and the second discharge port is connected to the first feed port through a feed trough 12.

[0030] The first pushing assembly 3 includes a first electric push rod, a first piston 301 and a partition 302. The first electric push rod is arranged on the top of the quantitative tank 2. The rod of the first electric push rod and the first piston 301 are located in the quantitative tank 2. The rod of the first electric push rod is connected to the first piston 301. The first piston 301 and the quantitative tank 2 have a clearance fit. The initial height of the first piston 301 is higher than the height of the first feed port. When the first electric push rod reaches the maximum stroke, the first piston 301 moves to the first discharge port.

[0031] The partition 302 is arranged on the back side where the first piston 301 is connected to the first electric push rod. The partition 302 is arranged close to the inner wall of the quantitative tank 2. The partition 302 is used to block the feed trough 12. The partition 302 can prevent the concrete sample from entering the quantitative tank 2 and prevent the first piston 301 from being stuck by the concrete sample.

[0032] A flap is provided at the first discharge port, which is rotatably connected to the quantitative tank 2 via a reset shaft, a torsion spring structure is provided in the reset shaft, and after the flap is pushed open, when the first piston 301 returns to the initial height, the flap uses the reset shaft to re-block the first discharge port.

[0033] The second pushing assembly 4 includes a second electric push rod and a second piston 401. The second electric push rod is arranged on the top of the storage tank 1. The second piston 401 is located in the storage tank 1. The second electric push rod is connected to the second piston 401. The second piston 401 is clearance-matched with the storage tank 1. A second feed port is provided on the side of the storage tank 1. The volume of the storage tank 1 is not less than ten times the volume of the quantitative tank 2.

[0034] The initial height of the second piston 401 is higher than the height of the second feed port to prevent the concrete sample from getting stuck in the second piston 401 during feeding. According to the experimental procedures, the concrete sample needs to be divided into ten equal parts and put into the beaker 5. Therefore, the volume of the storage tank 1 is not less than ten times the volume of the quantitative tank 2.

[0035] The usage process of this embodiment is as follows:

[0036] In the preparation stage, the concrete sample is sent to the storage tank 1, sufficient distilled water is added to the beaker 5, filter paper of appropriate size is cut, moistened with water, and then attached to the filter plate of the Buchner funnel 10, ensuring that the filter paper is close to the bottom of the funnel to prevent the substance to be filtered from leaking out.

[0037] The second electric push rod is turned on and pushes the second piston 401 to deliver the concrete sample in the storage tank 1 into the metering tank 2. Since the volumes of the metering tank 2, the feed trough 12 and the storage tank 1 are fixed, the volume of the concrete sample delivered into the metering tank 2 and the feed trough 12 can be determined based on the inner diameter of the storage tank 1 and the movement stroke of the second electric push rod. Therefore, by setting the movement stroke of the second electric push rod each time, it can be ensured that the metering tank 2 and the feed trough 12 can be filled.

[0038] After the second electric push rod completes one movement, the first electric push rod is turned on, and the first electric push rod pushes the first piston 301 to put all the concrete samples in the quantitative tank 2 into the beaker 5 to prevent the concrete samples from remaining in the quantitative tank 2. During this process, the flip cover will be pushed open.

[0039] After the first electric push rod completes one movement, the second electric push rod will move again to fill the quantitative tank 2 and the feed trough 12. The second electric push rod cooperates with the first electric push rod multiple times to divide the concrete sample into ten equal parts and put them into the beaker 5 one by one.

[0040] Allow the concrete sample to stand for 1 minute, start the peristaltic pump 6 to draw the solution into the Büchner funnel 10, and turn on the vacuum pump 8 at the same time. At this time, the air in the suction bottle 9 will be extracted, causing the pressure in the bottle to decrease and be lower than the external atmospheric pressure. Since the Büchner funnel 10 has holes that can pass through the atmosphere, a pressure difference is formed. Under the action of this pressure difference, the liquid in the solid-liquid mixture to be separated will accelerate to drip into the suction bottle 9, while the precipitated suspended solids will remain on the filter paper.

[0041] By comparing the weight change of the filter paper before and after vacuum filtration, the content of suspended matter in the water can be obtained.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An underwater non-dispersible concrete suspended matter content testing device, characterized in that: It includes a storage tank, a quantitative tank, a beaker, a peristaltic pump and a vacuum filtration component. The top and bottom of the quantitative tank are respectively provided with a first pushing component and a first discharge port. The beaker is located below the quantitative tank. The side of the quantitative tank is provided with a first feed port. The top and bottom of the storage tank are respectively provided with a second pushing component and a second discharge port. The second discharge port is connected with the first feed port through a feed trough. One end of the hose arranged on the peristaltic pump extends into the beaker, and the other end is connected with the vacuum filtration component.

2. The underwater non-dispersible concrete suspended matter content testing device according to claim 1, characterized in that: The vacuum filtration assembly includes a vacuum pump, a filtration bottle, a Buchner funnel and a funnel cover. A rubber stopper is provided at the inlet of the filtration bottle. The liquid outlet pipe of the Buchner funnel passes through the rubber stopper and extends into the filtration bottle. An air outlet is provided on the side of the filtration bottle, and the air outlet is connected to the vacuum pump. The funnel cover is arranged on the Buchner funnel. A plurality of air vents are provided on the top of the funnel cover. A liquid inlet is provided on the side of the funnel cover, and the hose is connected to the liquid inlet.

3. The underwater non-dispersible concrete suspended matter content testing device according to claim 1, characterized in that: The first pushing assembly includes a first electric push rod and a first piston. The first electric push rod is arranged on the top of the quantitative tank. The first piston is located in the quantitative tank. The first electric push rod is connected to the first piston. The first piston and the quantitative tank are clearance-matched. A flip cover is provided at the first discharge port, and the flip cover is rotationally connected to the quantitative tank through a reset shaft.

4. The underwater non-dispersible concrete suspended matter content testing device according to claim 3, characterized in that: The first pushing assembly also includes a partition, which is arranged on the back side where the first piston is connected to the first electric push rod, and the partition is arranged close to the inner wall of the quantitative tank, and the partition is used to block the feed trough.

5. The underwater non-dispersible concrete suspended matter content testing device according to claim 1, characterized in that: The second pushing assembly includes a second electric push rod and a second piston. The second electric push rod is arranged on the top of the storage tank. The second piston is located in the storage tank. The second electric push rod is connected to the second piston. The second piston is clearance-matched with the storage tank.

6. The underwater non-dispersible concrete suspended matter content testing device according to claim 1, characterized in that: A second feed port is provided on the side of the storage tank, and the volume of the storage tank is not less than ten times the volume of the quantitative tank.

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