Sewage treatment equipment for laboratory

Abstract

Relates to the field of sewage treatment, and discloses sewage treatment equipment for a laboratory, which comprises a cooling tower, a filler arranged in the cooling tower, a conveying unit arranged on the cooling tower and used for conveying treated sewage, an exhaust unit arranged at the upper part of the cooling tower, and a filtering unit, the filter is detachably arranged at the position, located below the filler, of the cooling tower and used for filtering impurities in the air; the cleaning unit is arranged at the lower end of the exhaust unit, connected with the filtering unit and used for cleaning the filtering unit, impurities attached to the filtering unit are cleaned through the cleaning unit, the use efficiency of the equipment is greatly improved, the service life of the equipment is greatly prolonged, the filtering unit is detachably fixed to the lower end of the cooling tower, and the cooling tower is convenient to use. Impurities in air can be conveniently and efficiently filtered, and meanwhile cleaning and maintaining become more convenient and faster due to the detachable design of the filtering units.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a wastewater treatment device for laboratory use. Background Technology

[0002] Biological wastewater, especially wastewater discharged from biological laboratories, contains various harmful bacteria such as pathogens and infectious agents. If it directly enters natural water bodies, it will create conditions for the spread of pathogens. Currently, ozone treatment and ultraviolet sterilization are commonly used methods. Some also use incinerators to incinerate small amounts of biological laboratory wastewater. Because the wastewater needs to be treated at high temperatures, cooling towers are required to cool the hot wastewater before discharge.

[0003] The existing equipment has the following disadvantages: The existing equipment requires a filter screen to be installed at the air inlet at the bottom of the cooling tower to filter impurities in the air. Since the working environment of the cooling tower and the dust screen is mostly outdoors, it is affected by weather and impurities such as fallen leaves and dust. The dust screen needs to be disassembled and replaced regularly. However, the existing filter screen and the cooling tower are generally fixed, and the dust screen cannot be quickly disassembled, making it inconvenient to clean and affecting the filtration efficiency of the filter screen.

[0004] Therefore, this application proposes a wastewater treatment device for laboratories to solve the aforementioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a wastewater treatment device for laboratories to solve the problems mentioned above, such as the inability to quickly disassemble the dustproof net, the inconvenience of cleaning, and the impact on the filtration efficiency of the filter net for impurities.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a laboratory wastewater treatment device, comprising a cooling tower, packing material disposed inside the cooling tower, a conveying unit disposed on the cooling tower for conveying treated wastewater, and an exhaust unit disposed on the upper part of the cooling tower, and further comprising:

[0007] A detachable filter unit is installed in the cooling tower below the packing material to filter impurities in the air.

[0008] A cleaning unit is located at the lower end of the exhaust unit and connected to the filter unit, and is used to clean the filter unit.

[0009] The cooling tower has a base box fixed to its lower end, the filter unit is sleeved on the outside of the base box, a support plate is fixed to the outside of the base box, a reinforcing rib is fixed to the outside of the cooling tower, the lower end of the reinforcing rib is fixed to the support plate, a first fixing plate is fixed inside the base box, and a second fixing plate is fixed on the base box.

[0010] The filtering unit includes a first filter screen disposed on the second fixed plate and a second filter screen disposed on the first fixed plate;

[0011] One end of the first filter screen is fixed with a first connecting plate, and the other end of the first filter screen is fixed with a second connecting plate. The second fixed plate is provided with a second limiting post at the corresponding positions of the first connecting plate and the second connecting plate. The first connecting plate and the second connecting plate are sleeved on the second limiting post. The first connecting plate and the second connecting plate are fixedly connected to the second limiting post by a first fixing nut.

[0012] One end of the second filter screen is fixed with a first positioning plate, and the other end of the second filter screen is fixed with a second positioning plate. The first fixing plate is provided with a first limiting post at the corresponding position of the first positioning plate and the second positioning plate. The first positioning plate and the second positioning plate are sleeved on the first limiting post. The first positioning plate and the second positioning plate are fixedly connected to the first limiting post by a second fixing nut.

[0013] The exhaust unit includes a fixed frame fixed to the upper end of the cooling tower, a motor fixed to the fixed frame, and a rotating shaft fixed to the power output end of the motor and passing through the packing. Fan blades are fixed on the rotating shaft.

[0014] The cleaning unit includes a fixed shaft fixed to the lower end of the rotating shaft, a mounting plate fixed to the fixed shaft on the side away from the rotating shaft, a connecting shaft rotatably mounted on the mounting plate, and a brush fixed to the lower end of the connecting shaft. The connecting shaft is located between the first filter screen and the second filter screen.

[0015] The upper end of the connecting shaft is fixed with a gear, and the inner wall of the base box is fixed with a gear ring that meshes with the gear at the position corresponding to the gear.

[0016] The conveying unit includes a conveying pipe located on the upper part of the cooling tower and a water distribution pipe fixed inside the cooling tower and connected to the conveying pipe. Spray nozzles are provided at intervals at the lower end of the water distribution pipe.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] This invention discharges disinfected wastewater from the conveying unit into the cooling tower, where it is cooled by the packing material. The honeycomb packing material evenly distributes and dissipates heat from the water conveyed by the conveying unit. The exhaust unit draws air upwards, which is then drawn into the cooling tower through the filtration unit. The airflow then moves upwards within the cooling tower to cool the water (in the opposite direction to the water flow). The cooled water falls to the bottom of the cooling tower and flows out from the lower outlet. During the upward airflow of the exhaust unit, the cleaning unit rotates inside the cooling tower, cleaning the impurities attached to the filtration unit. The rotational power of the exhaust unit drives the cleaning unit, achieving automatic cleaning of the filtration unit and greatly improving the efficiency and lifespan of the equipment. The detachable filtration unit is fixed at the bottom of the cooling tower, facilitating efficient filtration of impurities in the air. The detachable design of the filtration unit also makes cleaning and maintenance more convenient. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure in one embodiment of the present invention;

[0020] Figure 2 This is a top view of the structure in one embodiment of the present invention;

[0021] Figure 3 This is a cross-sectional structural schematic diagram of one embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the internal structure of a cooling tower in one embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the connection between the packing and the bottom box in one embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the connection between the cleaning unit and the filtering unit in one embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the connection between the fixing unit and the base box in one embodiment of the present invention;

[0026] Figure 8 This is a schematic diagram of the connection between the gear and the gear ring in one embodiment of the present invention;

[0027] Figure 9 This is a schematic diagram of the structure of the first filter screen and the second filter screen in one embodiment of the present invention;

[0028] Figure 10 for Figure 4 Enlarged structural diagram of section A in the middle.

[0029] In the diagram: 1. Cooling tower; 11. Ladder; 12. Base box; 121. Support plate; 122. First fixing plate; 1221. First limiting post; 123. Second fixing plate; 1231. Second limiting post; 13. Reinforcing rib; 2. Exhaust unit; 21. Fixing frame; 22. Motor; 23. Rotating shaft; 24. Fan blade; 3. Conveying unit; 31. Conveying pipe; 32. Water distribution pipe; 33. Nozzle; 4. Filtering unit; 41. First filter screen; 411. First connecting plate; 412. Second connecting plate; 413. First fixing nut; 42. Second filter screen; 421. First positioning plate; 422. Second positioning plate; 423. Second fixing nut; 5. Packing material; 6. Cleaning unit; 61. Fixing shaft; 62. Mounting plate; 63. Connecting shaft; 64. Gear; 65. Gear ring; 66. Brush. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1-10 This utility model provides a technical solution: a laboratory wastewater treatment device, including a cooling tower 1, packing material 5 disposed inside the cooling tower 1, a conveying unit 3 disposed on the cooling tower 1 for conveying treated wastewater, and an exhaust unit 2 disposed on the upper part of the cooling tower 1, and further including:

[0032] The filter unit 4 is detachably installed in the cooling tower 1 below the packing 5, and is used to filter impurities in the air.

[0033] The cleaning unit 6 is located at the lower end of the exhaust unit 2 and is connected to the filter unit 4, and is used to clean the filter unit 4.

[0034] It should be noted that during operation, the disinfected wastewater is discharged from the conveying unit 3 into the interior of the cooling tower 1, and then cooled by the packing material 5 inside the cooling tower 1. The honeycomb packing material 5 evenly disperses and dissipates heat from the water conveyed by the conveying unit 3. The exhaust unit 2 draws air upward, and the air is drawn into the interior of the cooling tower 1 through the filter unit 4. The airflow then moves upward inside the cooling tower 1 to cool the water (in the opposite direction to the water flow). The cooled water falls to the lower end of the cooling tower 1 and flows out from the lower outlet. During the upward airflow of the exhaust unit 2, the cleaning unit 6 is driven to rotate inside the cooling tower 1, so that the cleaning unit 6 cleans the impurities attached to the filter unit 4. The rotational power of the exhaust unit 2 drives the cleaning unit 6, realizing the automatic cleaning of the filter unit 4, which greatly improves the efficiency and lifespan of the equipment. The filter unit 4 is detachably fixed at the lower end of the cooling tower 1, which can easily and efficiently filter impurities in the air. At the same time, the detachable design of the filter unit 4 also makes cleaning and maintenance more convenient.

[0035] In one embodiment, a base box 12 is fixed to the lower end of the cooling tower 1, a filter unit 4 is sleeved on the outside of the base box 12, a support plate 121 is fixed to the outside of the base box 12, a reinforcing rib 13 is fixed to the outside of the cooling tower 1, the lower end of the reinforcing rib 13 is fixed to the support plate 121, a first fixing plate 122 is fixed inside the base box 12, and a second fixing plate 123 is fixed on the base box 12.

[0036] With this design, a ladder 11 is fixedly installed on the outside of the cooling tower 1, which makes it convenient for staff to observe and repair the internal components of the cooling tower 1. The design of the bottom box 12, especially the support plate 121 fixed on the outside and the use of reinforcing ribs 13, greatly enhances the structural stability of the entire cooling tower 1. The lower end of the reinforcing rib 13 is fixed on the support plate 121, which makes the lower end of the cooling tower 1 hollow, providing installation space for the filter unit 4. The first fixing plate 122 and the second fixing plate 123 fixed inside the bottom box 12 can be used to install or fix the filter unit 4, making the installation, disassembly, maintenance and repair of the equipment more convenient.

[0037] In one embodiment, the filter unit 4 includes a first filter screen 41 disposed on the second fixed plate 123 and a second filter screen 42 disposed on the first fixed plate 122;

[0038] One end of the first filter screen 41 is fixed with a first connecting plate 411, and the other end of the first filter screen 41 is fixed with a second connecting plate 412. A second limiting post 1231 is provided at the corresponding position of the first connecting plate 411 and the second connecting plate 412. The first connecting plate 411 and the second connecting plate 412 are sleeved on the second limiting post 1231. The first connecting plate 411 and the second connecting plate 412 are fixedly connected to the second limiting post 1231 by a first fixing nut 413.

[0039] One end of the second filter screen 42 is fixed with a first positioning plate 421, and the other end of the second filter screen 42 is fixed with a second positioning plate 422. A first limiting post 1221 is provided at the corresponding position of the first positioning plate 421 and the second positioning plate 422. The first positioning plate 421 and the second positioning plate 422 are sleeved on the first limiting post 1221. The first positioning plate 421 and the second positioning plate 422 are fixedly connected to the first limiting post 1221 by a second fixing nut 423.

[0040] With this design, the two filter screens are fixed to the limiting post by the connecting plate and the positioning plate, and are tightened with fixing nuts. This design makes the installation and removal of the filter screens convenient and quick, which is conducive to daily maintenance and replacement. By setting two layers of filter screens, impurities can be filtered more effectively, and the filtration effect can be improved.

[0041] In one embodiment, the exhaust unit 2 includes a mounting frame 21 fixed to the upper end of the cooling tower 1, a motor 22 fixed to the mounting frame 21, and a rotating shaft 23 fixed to the power output end of the motor 22 and passing through the packing 5. Fan blades 24 are fixed on the rotating shaft 23.

[0042] With this design, the mounting bracket 21 securely fixes the motor 22 to the upper end of the cooling tower 1, ensuring the structural stability of the entire exhaust unit 2. This design can reduce vibration and noise during equipment operation and improve the service life of the equipment. The motor 22 drives the fan blades 24 to rotate through the rotating shaft 23, which can effectively exhaust the hot air in the cooling tower 1, maintain good ventilation inside the cooling tower 1, and improve the cooling efficiency of the water source.

[0043] In one embodiment, the cleaning unit 6 includes a fixed shaft 61 fixed to the lower end of the rotating shaft 23, a mounting plate 62 fixed to the side of the fixed shaft 61 away from the rotating shaft 23, a connecting shaft 63 rotatably disposed on the mounting plate 62, and a brush 66 fixed to the lower end of the connecting shaft 63. The connecting shaft 63 is located between the first filter screen 41 and the second filter screen 42.

[0044] With this design, the rotating shaft 23 drives the fixed shaft 61 to rotate, which causes the mounting plate 62 to drive the connecting shaft 63 to move between the two filter screens. Then, the brush 66 automatically cleans the debris on the first filter screen 41 and the second filter screen 42. This not only keeps the filter screens clean and ensures their filtration effect, but also reduces the frequency and difficulty of manual cleaning.

[0045] In one embodiment, a gear 64 is fixed to the upper end of the connecting shaft 63, and a toothed ring 65 that meshes with the gear 64 is fixed at the corresponding position of the gear 64 on the inner wall of the bottom box 12.

[0046] With this design, as the fixed shaft 61 drives the connecting shaft 63 to rotate, the gear 64 at the upper end of the connecting shaft 63 meshes with the gear ring 65, thereby causing the connecting shaft 63 to rotate on the mounting plate 62. This allows the brush 66 to rotate and brush the filter screen, keeping it clean and enabling the filter screen to better perform its filtering function, reducing clogging and resistance, and thus ensuring the smooth operation of the equipment.

[0047] In one embodiment, the conveying unit 3 includes a conveying pipe 31 disposed on the upper part of the cooling tower 1 and a water distribution pipe 32 fixed inside the cooling tower 1 and communicating with the conveying pipe 31. Spray nozzles 33 are provided at intervals at the lower end of the water distribution pipe 32.

[0048] With this design, the wastewater after high-temperature disinfection is discharged into the water distribution pipe 32 through the delivery pipe 31, and then sprayed into the interior of the cooling tower 1 through the nozzle 33. This ensures that the water is sprayed out in the form of a uniform and fine water mist, which increases the contact area between the water and the air and helps to reduce the temperature inside the cooling tower 1 more quickly. This design not only improves the working efficiency of the cooling tower 1, but also ensures that the equipment can operate stably in a high-temperature environment.

[0049] Furthermore, if the embodiments involve descriptions such as "first," "second," etc., these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relation to the specification. The significance or implied number of the indicated technical features is not specified. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

Claims

1. A wastewater treatment device for laboratory use, comprising a cooling tower (1), packing material (5) disposed inside the cooling tower (1), a conveying unit (3) disposed on the cooling tower (1) for conveying treated wastewater, and an exhaust unit (2) disposed on the upper part of the cooling tower (1), characterized in that, Also includes: The filter unit (4) is detachably installed in the cooling tower (1) at a position below the packing (5) for filtering impurities in the air; A cleaning unit (6) is located at the lower end of the exhaust unit (2) and connected to the filter unit (4) for cleaning the filter unit (4).

2. The laboratory wastewater treatment equipment according to claim 1, characterized in that: The cooling tower (1) has a bottom box (12) fixed at its lower end. The filter unit (4) is sleeved on the outside of the bottom box (12). A support plate (121) is fixed on the outside of the bottom box (12). A reinforcing rib (13) is fixed on the outside of the cooling tower (1). The lower end of the reinforcing rib (13) is fixed on the support plate (121). A first fixing plate (122) is fixed inside the bottom box (12). A second fixing plate (123) is fixed on the bottom box (12).

3. The laboratory wastewater treatment equipment according to claim 2, characterized in that: The filter unit (4) includes a first filter screen (41) disposed on the second fixed plate (123) and a second filter screen (42) disposed on the first fixed plate (122); One end of the first filter screen (41) is fixed with a first connecting plate (411), and the other end of the first filter screen (41) is fixed with a second connecting plate (412). The second fixing plate (123) is provided with a second limiting post (1231) at the corresponding positions of the first connecting plate (411) and the second connecting plate (412). The first connecting plate (411) and the second connecting plate (412) are sleeved on the second limiting post (1231). The first connecting plate (411) and the second connecting plate (412) are fixedly connected to the second limiting post (1231) by a first fixing nut (413). One end of the second filter screen (42) is fixed with a first positioning plate (421), and the other end of the second filter screen (42) is fixed with a second positioning plate (422). The first fixing plate (122) is provided with a first limiting post (1221) at the corresponding positions of the first positioning plate (421) and the second positioning plate (422). The first positioning plate (421) and the second positioning plate (422) are sleeved on the first limiting post (1221). The first positioning plate (421) and the second positioning plate (422) are fixedly connected to the first limiting post (1221) by a second fixing nut (423).

4. The laboratory wastewater treatment equipment according to claim 3, characterized in that: The exhaust unit (2) includes a fixed frame (21) fixed to the upper end of the cooling tower (1), a motor (22) fixed to the fixed frame (21), and a rotating shaft (23) fixed to the power output end of the motor (22) and passing through the packing (5). Fan blades (24) are fixed on the rotating shaft (23).

5. A laboratory wastewater treatment device according to claim 4, characterized in that: The cleaning unit (6) includes a fixed shaft (61) fixed at the lower end of the rotating shaft (23), a mounting plate (62) fixed on the side of the fixed shaft (61) away from the rotating shaft (23), a connecting shaft (63) rotatably mounted on the mounting plate (62), and a brush (66) fixed at the lower end of the connecting shaft (63). The connecting shaft (63) is located between the first filter screen (41) and the second filter screen (42).

6. A laboratory wastewater treatment device according to claim 5, characterized in that: A gear (64) is fixed at the upper end of the connecting shaft (63), and a toothed ring (65) that meshes with the gear (64) is fixed at the position corresponding to the gear (64) on the inner wall of the base box (12).

7. A laboratory wastewater treatment device according to claim 1, characterized in that: The conveying unit (3) includes a conveying pipe (31) disposed on the upper part of the cooling tower (1) and a water distribution pipe (32) fixed inside the cooling tower (1) and connected to the conveying pipe (31). Spray nozzles (33) are provided at intervals at the lower end of the water distribution pipe (32).

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