Experimental solid-liquid separation device

Abstract

The utility model discloses an experimental solid-liquid separation device which comprises a waste liquid barrel, a cover body is arranged at the opening end of the waste liquid barrel, the cover body is sealed and detachably mounted on the waste liquid barrel, a filter assembly is arranged on the cover body, a pressure reduction assembly matched with the waste liquid barrel for use is arranged in the cover body, a control panel is arranged at the upper end of the cover body, and the pressure reduction assembly is electrically connected to the control panel; a mounting groove is formed in the cover body, the lower end of the mounting groove communicates with the waste liquid barrel, the filtering assembly comprises a supporting barrel, a filtering layer and a pressing barrel, the supporting barrel is detachably mounted in the mounting groove, the upper end of the supporting barrel is in an open state, a plurality of liquid drainage holes are evenly formed in the lower end of the supporting barrel, the filtering layer is laid at the bottom of the supporting barrel, and the pressing barrel is mounted in the supporting barrel; the upper end and the lower end of the pressing cylinder are open, and the pressing cylinder is pressed on the filtering layer. In the using process, waste liquid poured into the supporting cylinder by students is filtered, follow-up professional treatment is facilitated, and safety and environmental protection of experiments are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching experimental equipment, in particular to an experimental solid-liquid separation device. Background Art

[0002] Solid-liquid separation is a fundamental operation in chemical laboratories, widely used in sample preparation, product purification, and waste disposal. Traditional solid-liquid separation methods, such as filtration, sedimentation, and centrifugation, are simple and effective, but they present significant challenges in practical application. These challenges are particularly acute in educational settings, such as student labs in public courses.

[0003] In teaching laboratories, to ensure experimental safety and environmental protection, it is often necessary to classify and treat various wastewaters generated by experiments. Proper separation of solid-liquid mixtures is crucial, as it not only affects the efficiency of subsequent wastewater treatment but also raises environmental safety concerns. However, in practice, due to students' lack of operational experience or negligence, improper wastewater handling often occurs, with unseparated solid-liquid mixtures directly poured into wastewater barrels, which greatly complicates subsequent professional processing. Utility Model Content

[0004] The purpose of the utility model is to provide an experimental solid-liquid separation device, which filters waste liquid through a filter component, so that the liquid flows into a waste liquid barrel, while the solid remains on the filter layer, making it convenient to filter the waste liquid.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] An experimental solid-liquid separation device comprises a waste liquid barrel, wherein an open end of the waste liquid barrel is provided with a cover, the cover is sealed and detachably mounted on the waste liquid barrel, a filter assembly is provided on the cover, a pressure reducing assembly for use with the waste liquid barrel is provided within the cover, a control panel is provided at the upper end of the cover, and the pressure reducing assembly is electrically connected to the control panel;

[0007] The cover body is provided with a mounting groove, the lower end of the mounting groove is connected to the waste liquid barrel, the filter assembly includes a support tube, a filter layer and a pressing tube, the support tube is detachably installed in the mounting groove, the upper end of the support tube is in an open state, and the lower end of the support tube is evenly provided with a plurality of drainage holes, the filter layer is laid on the bottom of the support tube, the pressing tube is installed in the support tube, the upper and lower ends of the pressing tube are both in an open state, and the pressing tube is pressed on the filter layer.

[0008] By adopting this technical solution, students pour waste liquid into the support cylinder. After filtering through the filter layer, the waste liquid flows into the waste liquid bucket, while the solids remain on the filter layer. Students can then clean the waste liquid and solids separately. During the filtration process, the pressure reduction component is used to reduce the pressure in the waste liquid bucket, allowing the liquid to pass through the filter layer faster, speeding up the filtration process.

[0009] The utility model is further configured as follows: a mounting ring groove is provided at the upper open end of the mounting groove, a retaining ring is provided at the upper end of the support tube, the retaining ring is arranged in the mounting ring groove, and a first sealing ring is provided at the lower end of the retaining ring.

[0010] By adopting the above technical solution, the retaining ring and the mounting ring groove facilitate the installation of the support tube, while the first sealing ring can ensure the sealing of the support tube and facilitate the operation of the decompression assembly.

[0011] The present invention is further configured as follows: a spacer ring is provided on the circumferential side of the lower end of the support tube and protrudes from the lower end of the installation groove.

[0012] By adopting the above technical solution, it is prevented that the waste liquid flows toward the peripheral side and flows to the lower end of the cover body, which is inconvenient to clean.

[0013] The present invention is further configured as follows: the filter layer is in a groove shape, and the pressing cylinder presses on the bottom of the filter layer.

[0014] By adopting the above technical solution, the filter layer can be easily fixed and prevented from moving during the filtration process.

[0015] The present utility model is further configured as follows: the decompression assembly includes an air pump, an air pressure sensor, a battery and a charging port; the air pump and the battery are both arranged in the cover body; the air inlet of the air pump is connected to the waste liquid barrel; the air outlet of the air pump is connected to the outside of the cover body; the cover body is provided with an air outlet hole for use with the air pump; the air pressure sensor is installed at the lower end of the cover body; the charging port is installed on the cover body; the air pump, air pressure sensor, battery and charging port are all electrically connected to the control panel.

[0016] By adopting the above technical solution, the pressure reducing component sucks away the air in the waste liquid barrel through the air pump, reduces the air pressure in the waste liquid barrel, makes the atmospheric pressure greater than the air pressure in the barrel, and the waste liquid is filtered faster. The air pressure sensor constantly detects the air pressure in the waste liquid barrel to avoid damage to the waste liquid barrel due to too low pressure in the waste liquid barrel, causing waste liquid leakage.

[0017] The utility model is further configured as follows: the pressure reducing assembly further includes a solenoid valve and a tilt sensor, the air pump is electrically connected to the waste liquid barrel through the solenoid valve, the tilt sensor is arranged in the cover body, and the solenoid valve and the tilt sensor are both electrically connected to the control panel.

[0018] By adopting the above technical solution, when the waste liquid barrel is tilted, it is detected by the tilt sensor, transmitted to the control panel to issue an alarm, and the solenoid valve is closed to prevent the waste liquid from entering the air pump.

[0019] The utility model is further configured as follows: a card slot is provided at the lower end of the cover body, a second sealing ring is provided in the card slot, card rings are installed on the left and right sides of the cover body, support bars are installed on the left and right sides of the waste liquid barrel, a spring buckle is installed at one end of the support bar away from the waste liquid barrel, and the spring buckle is used in conjunction with the card ring.

[0020] By adopting the above technical solution, the cover is clamped on the open end of the waste liquid barrel through the card slot and fixed by the clamping ring and spring buckle, so that the cover is sealed on the waste liquid barrel. Of course, it is also convenient to open.

[0021] In summary, the present invention has the following beneficial effects:

[0022] First, during use, the utility model filters the waste liquid poured into the support cylinder by students, which is convenient for subsequent professional processing and ensures the safety and environmental protection of the experiment.

[0023] Secondly, the decompression component in the utility model can reduce the air pressure in the waste liquid barrel, speed up the filtration speed of the waste liquid, avoid slow filtration, which causes students to wait too long. Students with poor patience will pour the waste liquid directly, which can easily cause the waste liquid to overflow and be difficult to clean.

[0024] Third, the tilt sensor in the present invention can detect whether the waste liquid barrel has fallen over and send out an alarm after it has fallen over, so that the management personnel can deal with it quickly and avoid taking too long to clean it up. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a cross-sectional view of the present utility model;

[0027] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0028] Figure 4 It is a cross-sectional view of the spring buckle in the utility model.

[0029] In the figure: 1. Waste liquid barrel; 11. Support bar; 12. Spring buckle; 2. Cover body; 21. Mounting groove; 22. Mounting ring groove; 23. Air outlet; 24. Clamping groove; 25. Second sealing ring; 26. Clamping ring; 3. Filter assembly; 31. Support cylinder; 32. Filter layer; 33. Press cylinder; 34. Drain hole; 35. Retaining ring; 36. First sealing ring; 37. Spacer ring; 4. Decompression assembly; 41. Air pump; 42. Air pressure sensor; 43. Battery; 44. Charging port; 45. Solenoid valve; 46. Tilt sensor; 5. Control panel. DETAILED DESCRIPTION

[0030] The present invention will be described in further detail below with reference to the accompanying drawings.

[0031] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", "front", "back", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They 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. Therefore, they cannot be understood as limitations on the present invention.

[0032] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0033] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0034] Example, an experimental solid-liquid separation device, such as Figures 1 to 4 As shown, the waste liquid barrel 1 includes a lid 2 at its open end. The lid 2 is sealed and removably mounted on the waste liquid barrel 1. A filter assembly 3 is mounted on the lid 2, and waste liquid is poured onto the filter assembly 3 for filtration. A pressure reducing assembly 4 is located within the lid 2, which works in conjunction with the waste liquid barrel 1. This pressure-sensing assembly reduces the air pressure within the waste liquid barrel 1, accelerating the filtration process. A control panel 5 is located at the top of the lid 2. The pressure reducing assembly 4 is electrically connected to the control panel 5, which controls the coordinated operation of the various electronic components.

[0035] A mounting groove 21 is provided on the cover body 2, and the lower end of the mounting groove 21 is connected to the waste liquid barrel 1. The filter assembly 3 includes a support tube 31, a filter layer 32 and a pressing tube 33. The support tube 31 is detachably installed in the mounting groove 21, and the upper end of the support tube 31 is in an open state. A plurality of drainage holes 34 are evenly provided at the lower end of the support tube 31. The filter layer 32 is laid on the bottom of the support tube 31, and the pressing tube 33 is installed in the support tube 31. The upper and lower ends of the pressing tube 33 are both in an open state. The pressing tube 33 is pressed on the filter layer 32. The support tube 31 is used to support the filter layer 32. After being filtered by the filter layer 32, the waste liquid flows into the waste liquid barrel 1 from the drainage hole 34. The pressing tube 33 is used to press the filter layer 32. The filter layer 32 is simply placed on the support tube 31, which will be displaced due to the impact of the waste liquid and will not achieve the filtering effect. In order to install the support tube 31, a mounting ring groove 22 is provided at the upper open end of the mounting groove 21. A retaining ring 35 is provided at the upper end of the support tube 31. The retaining ring 35 is arranged in the mounting ring groove 22. The lower end of the retaining ring 35 is provided with a first sealing ring 36. The first sealing ring 36 can ensure the sealing between the support tube 31 and the mounting groove 21, which is beneficial to the operation of the decompression assembly 4. The lower end of the support tube 31 is provided with a spacer ring 37 protruding from the lower end of the mounting groove 21. The spacer ring 37 extends downward to prevent the waste liquid from flowing to the lower end of the cover body 2, which is inconvenient for subsequent cleaning. The filter layer 32 is in the shape of a groove, and the pressing tube 33 is pressed on the bottom of the filter layer 32. When in use, the peripheral side of the filter layer 32 is clamped between the support tube 31 and the pressing tube 33, so that it can be used in conjunction with the pressing tube 33 better, without displacement, and can also ensure the filtering effect.

[0036] The decompression assembly 4 includes an air pump 41, an air pressure sensor 42, a battery 43, a charging port 44, a solenoid valve 45, and a tilt sensor 46. The air pump 41 and the battery 43 are both located within the cover 2. The air inlet of the air pump 41 is connected to the waste liquid bucket 1, and the air outlet of the air pump 41 is connected to the outside of the cover 2. The cover 2 is provided with an air outlet 23 for use with the air pump 41. The air pressure sensor 42 is mounted at the lower end of the cover 2, and the charging port 44 is mounted on the cover 2. The air pump 41, air pressure sensor 42, battery 43, and charging port 44 are all electrically connected to the control panel 5. The air pump 41 is electrically connected to the waste liquid bucket 1 via the solenoid valve 45. The tilt sensor 46 is located within the cover 2. The solenoid valve 45 and the tilt sensor 46 are both electrically connected to the control panel 5. The main working principle of the pressure reducing assembly 4 is that after the waste liquid is poured into the support cylinder 31, the waste liquid separates the waste liquid barrel 1 from the outside world, and the air in the waste liquid barrel 1 is extracted by the air pump 41, causing the air pressure in the waste liquid barrel 1 to decrease. The outside atmospheric pressure is greater than the air pressure in the waste liquid barrel 1, which will press the waste liquid to be filtered and speed up the filtration. The battery 43 and the charging port 44 enhance the portability of the device, reduce the clutter of wires, and reduce the chance of the device tipping over. Of course, when the device tips over, it will be detected by the tilt sensor 46, which will sound an alarm so that the management staff can come over and deal with it quickly. At the same time as the alarm is sounded, the solenoid valve 45 will be closed to prevent waste liquid from entering the air pump 41.

[0037] The main reason for speeding up the filtration speed is that the waste liquid is dumped by students. Some students are impatient and unwilling to wait for a long time. They will pour all the waste liquid into the support tube 31, which will easily overflow and be difficult to clean. Therefore, speeding up the filtration speed can reduce the waiting time of students.

[0038] A slot 24 is provided at the lower end of the cover 2, and a second sealing ring 25 is provided in the slot 24. Snap rings 26 are installed on the left and right sides of the cover 2. Support bars 11 are installed on the left and right sides of the waste liquid barrel 1. A spring buckle 12 is installed at the end of the support bar 11 away from the waste liquid barrel 1. The spring buckle 12 is used in conjunction with the snap ring 26. When sealing the cover 2 on the waste liquid barrel 1, the slot 24 is clamped at the open end of the waste liquid barrel 1, and the spring buckle 12 is aligned with the snap ring 26 and clamped on the snap ring 26 to form a sealed fixation. When opening, press the spring buckle 12 inward to remove the snap ring 26 and the cover can be opened. The snap ring 26 can also be used as a handle to facilitate moving the device and dumping waste liquid.

[0039] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An experimental solid-liquid separation device, comprising a waste liquid barrel (1), characterized in that: The open end of the waste liquid barrel (1) is provided with a cover (2), the cover (2) is sealed and detachably mounted on the waste liquid barrel (1), a filter assembly (3) is provided on the cover (2), a decompression assembly (4) for use with the waste liquid barrel (1) is provided inside the cover (2), a control panel (5) is provided at the upper end of the cover (2), and the decompression assembly (4) is electrically connected to the control panel (5); The cover body (2) is provided with a mounting groove (21), the lower end of the mounting groove (21) is connected to the waste liquid barrel (1), the filter assembly (3) comprises a support tube (31), a filter layer (32) and a pressing tube (33), the support tube (31) is detachably mounted in the mounting groove (21), the upper end of the support tube (31) is in an open state, the lower end of the support tube (31) is evenly provided with a plurality of drainage holes (34), the filter layer (32) is laid on the bottom of the support tube (31), the pressing tube (33) is installed in the support tube (31), the upper and lower ends of the pressing tube (33) are both in an open state, and the pressing tube (33) presses on the filter layer (32).

2. An experimental solid-liquid separation device according to claim 1, characterized in that: The upper open end of the mounting groove (21) is provided with a mounting ring groove (22), the upper end of the support cylinder (31) is provided with a retaining ring (35), the retaining ring (35) is arranged in the mounting ring groove (22), and the lower end of the retaining ring (35) is provided with a first sealing ring (36).

3. An experimental solid-liquid separation device according to claim 2, characterized in that: A spacer ring (37) is provided on the circumferential side of the lower end of the support cylinder (31) and protrudes from the lower end of the mounting groove (21).

4. An experimental solid-liquid separation device according to claim 3, characterized in that: The filter layer (32) is in a groove shape, and the pressing cylinder (33) presses on the bottom of the filter layer (32).

5. An experimental solid-liquid separation device according to claim 4, characterized in that: The decompression assembly (4) includes an air pump (41), an air pressure sensor (42), a battery (43) and a charging port (44). The air pump (41) and the battery (43) are both arranged in the cover body (2). The air inlet of the air pump (41) is connected to the waste liquid barrel (1), and the air outlet of the air pump (41) is connected to the outside of the cover body (2). The cover body (2) is provided with an air outlet (23) for use with the air pump (41). The air pressure sensor (42) is installed at the lower end of the cover body (2), and the charging port (44) is installed on the cover body (2). The air pump (41), the air pressure sensor (42), the battery (43) and the charging port (44) are all electrically connected to the control panel (5).

6. An experimental solid-liquid separation device according to claim 5, characterized in that: The decompression assembly (4) further includes a solenoid valve (45) and a tilt sensor (46); the air pump (41) is electrically connected to the waste liquid barrel (1) via the solenoid valve (45); the tilt sensor (46) is disposed in the cover (2); and both the solenoid valve (45) and the tilt sensor (46) are electrically connected to the control panel (5).

7. An experimental solid-liquid separation device according to claim 6, characterized in that: A slot (24) is provided at the lower end of the cover body (2), a second sealing ring (25) is provided in the slot (24), snap rings (26) are installed on the left and right sides of the cover body (2), support bars (11) are installed on the left and right sides of the waste liquid barrel (1), a spring buckle (12) is installed at one end of the support bar (11) away from the waste liquid barrel (1), and the spring buckle (12) is used in conjunction with the snap ring (26).

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