A hydrogeological and environmental sample separation device

Abstract

This invention discloses a hydrogeological and environmental sample separation device, comprising a separation tank 1, a sampling chamber 2 extending downward from the bottom of the separation tank 1, a material chamber 3 located on one side of the sampling chamber 2, and a pump chamber 4 above the material chamber 3 for installing a vacuum pump 5. An air chamber 6 is located above the pump chamber 4, one side of which communicates with the interior of the separation tank 1. A control frame is located at the top between the separation tank 1 and the air chamber 6. This invention has a simple structure and is easy to operate. It effectively improves the overall filtration efficiency through pressurized filtration, and also effectively solves the problem of sand and gravel particles clogging the filter pores of the piston filter plate during pneumatic filtration by using backflushing.

Description

Technical Field

[0001] This invention relates to the technical field of experimental equipment, specifically to a hydrogeological and environmental sample separation device. Background Technology

[0002] Hydrogeological investigation, also known as hydrogeological survey, refers to the hydrogeological investigation and research work conducted to ascertain the hydrogeological conditions of a region. Its aim is to understand the formation, distribution, and movement patterns of groundwater and surface water. This provides a basis for the rational exploitation and utilization of water resources and the correct design and construction of foundation and piling projects. It includes both underground and above-ground hydrogeological investigation. Groundwater hydrogeological investigation mainly investigates the changes in groundwater level, flow direction, and chemical composition at different times of the year, ascertains the burial conditions and corrosiveness of groundwater, determines the potential changes and impacts of groundwater during the construction and use of buildings, and proposes prevention and control recommendations. In actual hydrogeological investigation operations, it is often necessary to collect groundwater samples and then conduct water quality testing and analysis. Before groundwater sampling and analysis, solid-liquid separation and filtration of the samples are required. Since groundwater samples mainly include groundwater, soil, and sand and gravel, filtration is necessary. However, existing groundwater sampling and separation devices have poor separation effects. To solve this problem, a separation device with pressurized filtration effect has emerged on the market. Although this method can improve the overall separation effect, in actual application, it has been found that under high pressure, sand and gravel particles can easily clog the filter pores of the filter plate, resulting in a decrease in the subsequent filtration effect. Summary of the Invention

[0003] The purpose of this invention is to provide a hydrogeological and environmental sample separation device that can effectively solve the problems existing in the background art.

[0004] To address the problems existing in the background art, it includes a separation tank 1, with a sampling chamber 2 extending downward from the bottom of the separation tank 1. A material chamber 3 is provided on one side of the sampling chamber 2, and a pump chamber 4 for installing a vacuum pump 5 is separated above the material chamber 3. An air chamber 6 is provided above the pump chamber 4, and one side of the air chamber 6 communicates with the interior of the separation tank 1. A control frame 7 is provided at the top between the separation tank 1 and the air chamber 6. A winding mechanism 8 is installed on one side of the control frame 7. A cable 9 is conventionally wound on the winding roller of the winding mechanism 8. The end of the cable 9 extends into the separation tank 1 and is fixedly connected to the center of the top surface of the piston filter plate 10. The piston filter plate 10 can fit tightly against the inner wall of the separation tank 1 in piston-like engagement.

[0005] A base plate 12 is fixedly installed at the bottom of the separation tank 1, and an upper cover 13 that can be fastened to the top of the separation tank 1. A connecting rod 11 is fixed in the middle of the bottom surface of the piston filter plate 10. The lower end of the connecting rod 11 passes through the piston tube 20 and is connected to the piston head 14. The piston head 14 can cooperate with the piston tube 20. The piston tube 20 is fixedly installed in the middle of the base plate 12.

[0006] A lifting pipe 15 is fixedly installed on the top surface of the piston filter plate 10.

[0007] The control frame 7 is equipped with a guide pulley 16 for guiding the cable 9.

[0008] Several buckles 17 for securing the top cover 13 are installed at the top edge of the separation tank 1.

[0009] A pressure gauge 18, which communicates with the interior of the separation tank 1, is installed on one side of the tank.

[0010] A rubber tube 19 that is interference-fitted with the cable 9 is fixedly installed on the upper cover 13.

[0011] A counterweight ring is provided at the bottom edge of the piston filter plate 10.

[0012] The separator 1 has an air passage 21 on one side that communicates with the interior of the air chamber 6; when the piston filter plate 10 moves above the air passage 21, the length of the connecting rod 11 is just enough to pull the piston head 14 into the piston tube 20.

[0013] Due to the adoption of the above technical solutions, the present invention has the following beneficial effects: simple structure, convenient operation, and can effectively improve the overall filtration efficiency through pressure filtration. At the same time, it can also effectively solve the problem of sand and gravel particles clogging the filter holes of the piston filter plate during air pressure filtration by using backflushing. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of the present invention. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of the present invention easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0017] See Figure 1 This specific embodiment is implemented using the following technical solution: It includes a separation tank 1, with a sampling chamber 2 extending downward from the bottom of the separation tank 1. A material chamber 3 is provided on one side of the sampling chamber 2. A pump chamber 4 for installing a vacuum pump 5 is separated above the material chamber 3. An air chamber 6 is provided above the pump chamber 4. One side of the air chamber 6 communicates with the interior of the separation tank 1. A control frame 7 is provided at the top between the separation tank 1 and the air chamber 6. A winding mechanism 8 is installed on one side of the control frame 7. A cable 9 is conventionally wound on the winding roller of the winding mechanism 8. The end of the cable 9 extends into the separation tank 1 and is fixedly connected to the center of the top surface of the piston filter plate 10. The piston filter plate 10 can fit tightly against the inner wall of the separation tank 1 in piston-like engagement.

[0018] A base plate 12 is fixedly installed at the bottom of the separation tank 1, and an upper cover 13 that can be fastened to the top of the separation tank 1. A connecting rod 11 is fixed in the middle of the bottom surface of the piston filter plate 10. The lower end of the connecting rod 11 passes through the piston tube 20 and is connected to the piston head 14. The piston head 14 can cooperate with the piston tube 20. The piston tube 20 is fixedly installed in the middle of the base plate 12.

[0019] A lifting pipe 15 is fixedly installed on the top surface of the piston filter plate 10.

[0020] The control frame 7 is equipped with a guide pulley 16 for guiding the cable 9.

[0021] Several buckles 17 for securing the top cover 13 are installed at the top edge of the separation tank 1.

[0022] A pressure gauge 18, which communicates with the interior of the separation tank 1, is installed on one side of the tank.

[0023] A rubber tube 19 that is interference-fitted with the cable 9 is fixedly installed on the upper cover 13.

[0024] A counterweight ring is provided at the bottom edge of the piston filter plate 10.

[0025] The separator 1 has an air passage 21 on one side that communicates with the interior of the air chamber 6; when the piston filter plate 10 moves above the air passage 21, the length of the connecting rod 11 is just enough to pull the piston head 14 into the piston tube 20.

[0026] The following, in conjunction with the accompanying drawings, further elaborates on the usage method and principle of the technical solution in this specific embodiment:

[0027] First, open the latches 17 one by one, then open the top cover 13 and put the groundwater sample containing sand and gravel into the piston filter plate 10. Then, start the winding mechanism 8 to unwind. At this time, the piston filter plate 10 will gradually slide towards the bottom piston of the separation tank 1 under the action of gravity. During this process, the water in the groundwater sample containing sand and gravel will flow through the piston filter plate 10 to the bottom plate 12 and finally be discharged through the piston tube 20. Therefore, at this time, the sampling dish needs to be placed directly below the piston head 14 in advance. Then, close the top cover 13 and lock the latches 17 again to make the top cover 13 and the separation tank 1 in a sealed state again. Then, start the vacuum pump 5 to pressurize the air chamber 6 and the separation tank 1. Since the piston tube 20 is in an open state at this time, the water in the groundwater sample containing sand and gravel will be filtered out completely through the filter holes on the piston filter plate 10 at an accelerated speed. During this process, the sand and gravel will gradually block the filter holes under the pressure inside.

[0028] Next, open the latches 17 one by one and start the winding mechanism 8 to wind up. At this time, the piston filter plate 10 will carry sand and other impurities to rise together in the separation tank 1. During the rising process, the lifting pipe 15 will first contact the upper cover 13 and lift the upper cover 13. At this time, the piston head 14 will be fully inserted into the piston tube 20, and the piston filter plate 10 will be located above the air passage 21. Then, start the vacuum pump 5 to pressurize the air chamber 6 and the separation tank 1 to backflush the piston filter plate 10. This can remove sand and other impurities on the piston filter plate 10 and effectively solve the problem of sand and gravel clogging the filter holes during the air pressure filtration process.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hydrogeological and environmental sample separation device, characterized in that... It includes a separation tank 1, from which a sampling chamber 2 extends downward. A material chamber 3 is located on one side of the sampling chamber 2. Above the material chamber 3, a pump chamber 4 for installing a vacuum pump 5 is separated. Above the pump chamber 4, a gas chamber 6 is located. One side of the gas chamber 6 communicates with the interior of the separation tank 1. A control frame 7 is located at the top between the separation tank 1 and the gas chamber 6. A winding mechanism 8 is installed on one side of the control frame 7. A cable 9 is conventionally wound on the winding roller of the winding mechanism 8. The end of the cable 9 extends into the separation tank 1 and is fixedly connected to the center of the top surface of the piston filter plate 10. The piston filter plate 10 can fit tightly against the inner wall of the separation tank 1 in piston-like engagement.

2. The hydrogeological and environmental sample separation device according to claim 1, characterized in that... A base plate 12 is fixedly installed at the bottom of the separation tank 1, and an upper cover 13 that can be fastened to the top of the separation tank 1. A connecting rod 11 is fixed in the middle of the bottom surface of the piston filter plate 10. The lower end of the connecting rod 11 passes through the piston tube 20 and is connected to the piston head 14. The piston head 14 can cooperate with the piston tube 20. The piston tube 20 is fixedly installed in the middle of the base plate 12.

3. The hydrogeological and environmental sample separation device according to claim 2, characterized in that... A lifting pipe 15 is fixedly installed on the top surface of the piston filter plate 10.

4. The hydrogeological and environmental sample separation device according to claim 1, characterized in that... The control frame 7 is equipped with a guide pulley 16 for guiding the cable 9.

5. The hydrogeological and environmental sample separation device according to claim 1, characterized in that... Several buckles 17 for securing the top cover 13 are installed at the top edge of the separation tank 1.

6. The hydrogeological and environmental sample separation device according to claim 1, characterized in that... A pressure gauge 18, which communicates with the interior of the separation tank 1, is installed on one side of the tank.

7. The hydrogeological and environmental sample separation device according to claim 1, characterized in that... A rubber tube 19 that is interference-fitted with the cable 9 is fixedly installed on the upper cover 13.

8. The hydrogeological and environmental sample separation device according to claim 1, characterized in that... A counterweight ring is provided at the bottom edge of the piston filter plate 10.

9. A hydrogeological and environmental sample separation device according to claim 3, characterized in that... The separator 1 has an air passage 21 on one side that communicates with the interior of the air chamber 6; when the piston filter plate 10 moves above the air passage 21, the length of the connecting rod 11 is just enough to pull the piston head 14 into the piston tube 20.

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