A cell culture waste liquid treatment device

Abstract

The application discloses a cell culture waste liquid treatment device which comprises a main container, a solid-liquid separation assembly and a cover body. The solid-liquid separation assembly is arranged in the main container and used for separating solid from liquid in waste liquid. The cover body is rotationally connected with an opening of the main container through a rotating shaft, and the rotating shaft is arranged eccentrically to the center of the cover body. The cover body is provided with a splash-proof flow guide structure for waste liquid. The eccentric design can increase the opening width and the space for throwing bulk waste.

Description

Technical Field

[0001] This utility model relates to the field of waste liquid treatment, specifically to a cell culture waste liquid treatment device. Background Technology

[0002] Cell culture waste liquid is a complex waste generated during cell culture. Its components are diverse, including residual glucose, amino acids, serum and other nutrients from the culture medium, products such as lactic acid and urea produced by cell metabolism, microorganisms such as bacteria, fungi and viruses that may be present, chemical reagents such as antibiotics, buffer solutions and trypsin, and cell fragments formed after the rupture of dead cells. These components together constitute a potentially hazardous waste liquid system. If not handled properly, it will pose a significant threat to the environment and human health. Currently, cell culture waste liquid treatment methods include: (1) physical treatment methods, which remove microorganisms and larger cell fragments by filtration and remove organic matter and pigments by using adsorbents such as activated carbon; (2) chemical treatment methods, which add disinfectants such as sodium hypochlorite to waste liquid containing pathogenic microorganisms for disinfection and sterilization, and neutralize acidic and alkaline waste liquids to adjust the pH to 6-9, etc.

[0003] Referring to the cell culture waste liquid cylinder disclosed in CN217351314U, it achieves solid-liquid separation through a threaded connection between the upper and lower cylinders and a filter screen, and uses a structure where the cylinder cover rotates radially through a first rotating shaft to reduce splashing. This design improves upon the shortcomings of traditional devices to some extent, but still has significant deficiencies in practical applications: (1) The cylinder head opening angle is limited, resulting in poor operational adaptability. In the prior art, the cylinder head is connected to the opening of the upper cylinder body through a "first rotating shaft set along its own radial direction". The rotating shaft is located at the center of the cylinder head, which causes the maximum opening angle when the cylinder head rotates to be limited by the diameter of the upper cylinder body (the opening width is approximately the radius of the cylinder body). This structure results in a small maximum opening, which is not compatible with the high-frequency and multi-type cell culture waste liquid treatment needs. (2) The prior art relies on the guiding effect of the inverted frustum-shaped inclined cylinder and the cylinder head to reduce splashing, but lacks a targeted buffer design: when liquid or liquid-containing waste comes into contact with the inner wall of the cylinder head or inclined cylinder, it may still rebound due to the impact force and splash out from the gap between the cylinder head and the upper cylinder body.

[0004] In summary, it is necessary to improve upon existing technologies to provide a treatment device with a larger opening and better splash prevention. Utility Model Content

[0005] The present invention aims to provide a cell culture waste liquid treatment device to solve the problem of limited cylinder head opening angle in the prior art.

[0006] A cell culture waste liquid treatment device includes a main container, a solid-liquid separation component, and a cover. The solid-liquid separation component is disposed inside the main container and is used to separate solids and liquids in the waste liquid. The cover is rotatably connected to the opening of the main container via a rotating shaft. The rotating shaft is offset from the center of the cover. The cover is provided with a structure for preventing splashing and guiding the waste liquid.

[0007] The working principle and beneficial effects of this utility model: By offsetting the rotation axis from the center of the lid (eccentric setting), an asymmetrical opening is created when the lid rotates. The maximum width of the opening is close to the diameter of the main container. In traditional central axis designs, the opening width is only the radius, while the eccentric design increases the opening width, thereby increasing the volume of waste disposal space. The flow guiding structure changes the impact direction of the waste liquid, preventing direct impact on the container edge and splashing.

[0008] Ideally, the eccentricity of the rotation axis is 1 / 3 to 1 / 2 of the lid radius. When the eccentricity is 1 / 3 to 1 / 2 of the lid radius, the position of the rotation axis forms the optimal mechanical fulcrum, ensuring both maximum opening and maintaining the rotational stability of the lid.

[0009] The optimized anti-splash guiding structure includes raised ribs evenly spaced along the circumference of the cover, with guiding grooves formed between adjacent ribs. The raised ribs divide the surface of the cover into multiple guiding grooves. When the waste liquid flows along the grooves, the raised ribs form a physical barrier to the liquid, dispersing the impact force.

[0010] The optimized design features an arc-shaped vertical cross-section for the ribs, with the height gradually increasing towards the main container. The arc-shaped cross-section reduces the contact area between the liquid and the ribs, thus lowering adhesion; the progressively increasing height design allows the liquid's potential energy to be released gradually, slowing down the flow rate.

[0011] The optimized design increases the height of the raised rib from 2 mm to 1 cm.

[0012] The optimized main container includes an upper container and a lower container, which are detachably connected. The solid-liquid separation component is a filter screen located at the bottom of the upper container, and the upper part of the upper container is an inverted frustum-shaped inclined section.

[0013] The optimized upper container is equipped with an annular liquid-retaining flange. The annular liquid-retaining flange prevents waste liquid from splashing upwards due to inertia, forcing the liquid to drip onto the filter screen. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a cell culture waste liquid treatment device in the prior art; Figure 2 This is a schematic diagram of the structure of a cell culture waste liquid treatment device according to this application; Figure 3 for Figure 2 Top view of the middle cover; Figure 4 for Figure 3 Vertical cross-sectional view of the central convex rib.

[0015] The reference numerals in the accompanying drawings include: lower container 1, receiving section 2, inclined section 3, cover 4, rotating shaft 5, filter screen 6, annular liquid-blocking flange 7, raised rib 8, and flow-guiding groove 9. Detailed Implementation

[0016] The following detailed description illustrates the specific implementation method: Example: Refer to Figures 2-4 As shown, the cell culture waste liquid treatment device disclosed in this embodiment includes a main container, a solid-liquid separation component, a cover 4, and a splash-proof and flow-guiding structure, the specific structure of which is as follows: The main container includes an upper container and a lower container 1, which are detachably connected by threads. The upper container is divided into two parts: the upper part is an inverted frustum-shaped inclined section 3, and the lower part is a cylindrical receiving section 2. The inner wall of the inclined section 3 forms a 60-degree angle with the horizontal plane. The lower container 1 is equipped with a solid-liquid separation component, which is a stainless steel filter screen 6. The filter screen 6 is horizontally fixed to the bottom of the lower container 1 and has a pore size of 50μm, used to separate solids and liquids in waste liquid.

[0017] The lid 4 is a circular stainless steel plate with a diameter that matches the opening diameter of the upper container. The lid 4 is rotatably connected to the edge of the upper container's opening via a rotating shaft 5, which is offset from the center of the lid 4 by one-third of the lid 4's radius. The anti-splash guiding structure includes 12 radially distributed ribs 8 on the side of the lid 4 facing the lower container 1, with adjacent ribs forming guide grooves 9. The vertical cross-section of the ribs 8 is arc-shaped, and their height gradually increases from 2mm to 1cm along the direction towards the outer edge of the lid 4. An annular liquid-blocking flange 7 is fixed at the junction of the inclined section 3 and the receiving section 2 of the upper container, protruding inward by 5mm.

[0018] When disposing of waste liquid, rotate the cover 4 counterclockwise by 30-60° to expose the inner side of the cover 4 (the side of the cover 4 facing the lower container 1 when it is not opened), and use the large opening formed by the eccentric rotating shaft 5 to allow the waste to enter the upper container smoothly. When liquid or liquid-containing waste comes into contact with the inside of the cover 4, it slides along the guide groove 9 between the ribs 8. The arc-shaped cross section and height gradient of the ribs 8 buffer the impact force of the liquid and prevent splashing. The liquid flows into the upper container through the guide groove 9, and the cover 4 extends downward into the upper container for a longer length, which can better prevent the liquid from splashing outward.

[0019] After processing, unscrew the lower container 1 to pour out the liquid waste; disassemble the upper and lower containers 1, open the cover 4, remove the filter screen 6 to clean the solid waste; rinse the upper container, lower container 1 and cover 4 with a high-pressure water gun.

[0020] In addition, to facilitate opening the cover 4, a handle of a certain length is fixedly welded to the top of the cover 4 on the side away from the rotating shaft 5. The cover 4 can be rotated by pulling the handle. At the same time, a damping bearing is installed on the rotating shaft 5 so that the cover 4 can remain stationary after rotating a certain angle. The damping bearing is a commonly used component in this field.

[0021] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A cell culture waste liquid treatment device, comprising a main container, a solid-liquid separation component, and a cover; The solid-liquid separation component is installed inside the main container and is used to separate solids and liquids in the waste liquid; The cover is rotatably connected to the opening of the main container via a rotating shaft, characterized in that: The rotating shaft is offset from the center of the cover; the cover is provided with a structure for preventing splashing of waste liquid; the anti-splashing and flow guiding structure includes raised ribs that are evenly spaced along the circumference of the cover, and flow guiding grooves are formed between adjacent raised ribs.

2. The cell culture waste liquid treatment device according to claim 1, characterized in that: The eccentricity of the rotation axis is 1 / 3 to 1 / 2 of the radius of the cover.

3. The cell culture waste liquid treatment device according to claim 2, characterized in that: The vertical cross-sectional shape of the rib is arc-shaped, and its height gradually increases towards the main container.

4. The cell culture waste liquid treatment device according to claim 3, characterized in that: The height of the raised ribs increases from 2mm to 1cm.

5. The cell culture waste liquid treatment device according to claim 4, characterized in that: The main container includes an upper container and a lower container, which are detachably connected. The solid-liquid separation component is a filter screen located at the bottom of the upper container, and the upper part of the upper container is an inverted frustum-shaped inclined section.

6. The cell culture waste liquid treatment device according to claim 5, characterized in that: The upper container is provided with an annular liquid-retaining flange.

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