CN110749472A - A sampling device for sediment sedimentation experiment - Google Patents

Abstract

The invention discloses a sampling device for sediment sedimentation experiment, comprising a cylinder body, a through hole for sampling is arranged on the cylinder body along the height direction of the cylinder body, a bracket is arranged on the outside of the cylinder body, and the bracket is movably arranged along the height direction of the cylinder body There is a sampling box corresponding to the position of the through hole; the sampling box is provided with a first opening which can communicate with the through hole correspondingly, and the sampling box is provided with a control device for controlling the communication between the first opening and the through hole. The control device includes a first chute arranged on the sampling box, a second baffle in the first chute that can move along the first chute, and the second baffle moves along the first chute to control the communication between the first opening and the through hole . Through the arrangement of the sampling box and the control device, the invention makes the sampling method more convenient, effectively controls the sampling amount, reduces the disturbance of the sediment suspension, and improves the experimental measurement accuracy.

Description

A sampling device for sediment sedimentation experiment

technical field

The invention relates to a sampling device, in particular to a sampling device for sediment sedimentation experiments.

Background technique

Sediment settling experiment generally refers to an experiment in which a certain concentration of sediment solution is prepared in the artificial environment of the laboratory, and after stirring evenly, the phenomenon of sediment settling is observed and the law and properties of sediment settling are studied. In order to study the law of sediment settlement, it is necessary to study the law of the change of sediment content at different heights with time, and the liquid at different heights needs to be sampled and analyzed during the experiment. At present, there are still some limitations in the sedimentation device for sediment settlement and consolidation experiments in the laboratory, such as excessive disturbance of the sediment suspension by the sampling device, easy leakage during the sampling process, and easy damage to the experimental device.

The existing sampling system also uses x-ray and gamma-ray methods, such as using plutonium low-energy x-ray source and liquid-phase sedimentation method for particle analysis, but the use of x-ray and gamma-rays is harmful and is not recommended. Recently, methods such as ultrasonic waves can also be used for the study of sediment sedimentation experiments, such as the method of using ultrasonic vibration instruments to disperse fine-grained sediments in the analysis of viscous sediment particle sizes. However, ultrasonic waves cannot completely penetrate the sediment cylinder. And the correlation between ultrasonic reflection signal and sediment concentration is poor.

SUMMARY OF THE INVENTION

Purpose of the invention: The purpose of the present invention is to provide a sampling device for sediment sedimentation experiments, which makes the sampling method more convenient, effectively controls the sampling amount, reduces the disturbance of the sediment suspension, and improves the accuracy of the experimental measurement.

Technical scheme: The sampling device for sediment sedimentation experiment of the present invention includes a cylinder body, a through hole for sampling is arranged on the cylinder body along the height direction of the cylinder body, and a bracket is arranged on the outside of the cylinder body, and the bracket is arranged along the height of the cylinder body. A sampling box corresponding to the position of the through hole is movably arranged in the direction; the sampling box is provided with a first opening that can communicate with the through hole correspondingly, and the sampling box is provided with a control first opening to communicate with the through hole control device.

Preferably, a first baffle plate is provided on the bracket between the sampling box and the through hole, the first baffle plate is provided with a second opening that can communicate with the first opening and the through hole, and the through hole is connected to the through hole. The second opening is connected.

Preferably, the control device includes a first chute set on the sampling box, a second baffle in the first chute that can move along the first chute, and the second baffle moves along the first chute to control the first The opening communicates with the through hole.

Preferably, a push-pull rod for pushing the second baffle to move is connected to the second baffle.

Preferably, the second baffle plate is provided with a third opening that can communicate with the first opening and the through hole.

Preferably, the bracket is provided with a second chute at the contact with the sampling box, and the sampling box moves out or into the bracket along the second chute.

Preferably, the second chute is laterally arranged on the bracket, and the sampling box is fixed on the bracket through the chute.

Preferably, the through hole is connected with the bracket through a hose.

Preferably, the hose is provided with a water stop clip for communicating the control through hole with the bracket.

Beneficial effects: Compared with the prior art, the present invention can achieve the following beneficial effects: 1. The present invention makes the sampling method more convenient, effectively controls the sampling amount, and reduces the sediment suspension through the setting of the sampling box and the control device. disturbance to improve the accuracy of experimental measurements. 2. The device of the present invention is simple, easy to operate, and strong in practicability.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present invention;

Fig. 2 is the side schematic diagram of the present invention;

Fig. 3 is the top view of the present invention;

FIG. 4 is a schematic structural diagram of the first baffle plate of the present invention.

Detailed ways

The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

As shown in Figure 1-4, among them, 1-cylinder; 2-hose; 3-bracket; 4-through hole; 5-sampling box; 6-first baffle; 7-first opening; 8-th A chute; 9-second baffle plate; 10-push-pull rod; 11-second opening; 12-second chute. This embodiment provides a sampling device for sediment settling experiments, which includes a cylinder body 1, which is the main part of the sediment settling experiment device and is used for containing sediment suspension, which can be a cylinder structure; The cylinder body 1 is provided with through holes 4 for sampling in the height direction, and the through holes 4 can be arranged at equal intervals on the cylinder body 1 from top to bottom. A bracket 3 is provided on the outer side of the cylinder body 1, and a sampling box 5 corresponding to the position of the through hole 4 is movably provided on the bracket 3 along the height direction of the cylinder body 1. 4. The corresponding position is provided with a fixed support plate to form a shelf-layer structure, and the sampling box 5 is placed on each layer of the support plate, and the sampling box 5 can be moved out or moved in from the support plate; 3, a second chute 12 is provided on the contact surface between the sampling box 5 and the bottom of the bracket 3. The second chute 12 can be located on the upper part, the lower part or the side of the sampling box 5. When the second chute 12 is horizontal on the bracket 3 In the case where no support plate is provided, the second chute 12 can be used as a support for the sampling box 5 on the one hand, and the sampling box 5 can be moved out or in conveniently on the other hand. The surface corresponding to the sampling box 5 and the through hole 4 is provided with a first opening 7 that can be communicated with the through hole 4 correspondingly, and the sampling box 5 is provided with a control device that controls the communication between the first opening 7 and the outside world, that is, the control device is connected to the through hole 4. Pass. The sampling boxes 5 are independent of each other and do not affect each other.

On the bracket 3, a first baffle 6 is fixedly arranged between the sampling box 5 and the through hole 4, the first baffle 6 is provided with a second opening 11, the through hole 4 is connected with the second opening 11 through the hose 2, and the soft The pipe 2 is provided with a water stop clip, which controls the opening and closing of the water stop clip to control the outflow of the suspension in the cylinder to the sampling box 5 . When the first baffle 6 is not provided, the through hole 4 is movably connected to the sampling box 5 through the hose 2. When the sampling box 5 needs to be removed from the bracket 3, clamp the water stop clip to disconnect the hose 2 and the sampling box 5. When the through hole 4 needs to be connected with the sampling box 5, it can be connected with the hose 2 again.

The control device includes a first chute 8 located on one side of the first opening 7 of the sampling box 5, a second baffle 9 in the first chute 8 that can move along the first chute 8, and the second baffle 9 along the first chute 8. A chute 8 moves to control the first opening 7 to communicate with the through hole 4 . In order to facilitate pushing and pulling the second baffle 9 , a push-pull rod 10 is connected to the second baffle 9 . During operation, the push-pull rod 10 pushes the second baffle 9 to move and control the first opening 7 to communicate with the through hole 4 . The second baffle 9 is provided with a third opening (not shown in the figure). Moving the second baffle 9 makes the third opening stagger or overlap with the first opening 7 to control the communication between the first opening 7 and the through hole 4 .

The working process of the present invention is as follows:

After the installation of the device is completed, the sediment sedimentation test is carried out, wherein the cylinder 1 is connected to the second opening 11 on the first baffle 6 through the hose 2 , and the suspension flows into and fills the sampling box 5 . When sampling, first determine to select a sampling box at a certain height for sampling, and then clamp the corresponding hose 2 with a water stop clip to prevent the sediment suspension in the cylinder 1 from continuing to flow into the sampling box 5 at this position. The push-pull rod 10 moves the second baffle 9 so that the third opening is staggered from the first opening 7 on the sampling box 5 to block the first opening 7 and completely close the sampling box 5, and then pull out the sampling box 5 along the second chute 12. The closed sampling box 5 completes the sampling at this height at this moment. Move the push-pull rod 10 again to make the third opening on the second baffle 9 coincide with the first opening 7 on the sampling box 5, pour the obtained sediment suspension into the culture dish, and finally return the sampling box 5 to its original position , that is, it is installed on the bracket 3 along the second chute 12 . Use the sample in the petri dish for subsequent drying and weighing, that is, to complete the measurement of the sediment concentration at the height at this moment. When the first baffle 6 is not provided on the bracket 3, the through hole 4 is movably connected with the sampling box 5 through the hose 2, and the through hole 4 and the first opening 7 on the sampling box 5 are also maintained by the control device on the sampling box 5. Connected, the suspension in the cylinder 1 flows into and fills the sampling box 5 . When sampling, first clamp the hose 2 with a water stop clip to prevent the sediment suspension in the cylinder 1 from continuing to flow into the sampling box 5, and then disconnect the hose 2 from the sampling box 5; when the through hole 4 needs to be connected to the sampling box 5 When the cartridge 5 is connected, the hose 2 may be used to connect it again. The rest of the steps are the same as installing the first baffle 6 .

Claims (9)

1. A sedimentation experiment sampling device, characterized in that it comprises a cylinder (1), and the cylinder (1) is provided with a through hole (4) for sampling along the height direction of the cylinder (1), and the cylinder (1) is provided with a through hole (4) for sampling. A bracket (3) is provided on the outside of the body (1), and a sampling box (5) corresponding to the position of the through hole (4) is movably arranged on the bracket (3) along the height direction of the cylinder (1); the The sampling box (5) is provided with a first opening (7) that can communicate with the through hole (4) correspondingly, and the sampling box (5) is provided with a control first opening (7) to communicate with the through hole (4) control device. 2. Sediment settling test sampling device according to claim 1, is characterized in that, is provided with first baffle plate (6) between sampling box (5) and through hole (4) on described support (3) , the first baffle plate (6) is provided with a second opening (11) that can communicate with the first opening (7) and the through hole (4), the through hole (4) and the second opening (11) connect. 3. The sedimentation test sampling device according to claim 1, characterized in that, the control device comprises a first chute (8) arranged on the sampling box (5), and in the first chute (8) The second baffle plate (9) can move along the first chute (8), and the second baffle plate (9) moves along the first chute (8) to control the communication between the first opening (7) and the through hole (4). 4 . The sampling device for sediment settlement test according to claim 3 , wherein the second baffle plate ( 9 ) is connected with a push-pull rod ( 10 ) for pushing the second baffle plate ( 9 ) to move. 5 . 5. The sedimentation test sampling device according to claim 3, characterized in that, the second baffle plate (9) is provided with a third baffle plate (9) that can communicate with the first opening (7) and the through hole (4). Open your mouth. 6. Sediment settling test sampling device according to claim 1, is characterized in that, described support (3) is provided with the second chute (12) at the contact place with sampling box (5), and described sampling box ( 5) Move out or into the bracket (3) along the second chute (12). 7. The sedimentation test sampling device according to claim 6, wherein the second chute (12) is laterally arranged on the bracket (3), and the sampling box (5) passes through the chute (12) ) is fixed on the bracket (3). 8 . The sampling device for sediment settlement test according to claim 1 , wherein the through hole ( 4 ) is connected to the bracket ( 3 ) through a hose ( 2 ). 9 . 9 . The sampling device for sediment settling test according to claim 1 , wherein the hose ( 2 ) is provided with a water stop clip for controlling the communication between the through hole ( 4 ) and the bracket ( 3 ). 10 .

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