Solid-liquid separation waste liquid cylinder for super clean bench

Abstract

The utility model discloses a solid-liquid separation waste liquid cylinder used for a super clean bench in the technical field of laboratory equipment, and the solid-liquid separation waste liquid cylinder comprises a waste liquid cylinder and a filter cartridge, the top end and the bottom end of the filter cartridge are open, the bottom end of the filter cartridge is fixedly connected with a filter screen, the filter screen is used for waste liquid to flow through, and the filter cartridge is detachably connected to the top of the waste liquid cylinder; the top of the filter cartridge is detachably connected with a cartridge cover, and a through hole is formed in the cartridge cover. According to the scheme, the problems that during biological experiments, solid-liquid separation cannot be achieved during waste liquid collection, and meanwhile waste liquid may splash are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of laboratory equipment, in particular to a solid-liquid separation waste liquid cylinder used in a clean bench. Background Art

[0002] A clean bench (also known as a biological safety cabinet, purification bench or sterile operating bench) is a device used to provide a sterile or dust-free operating environment and is widely used in biological laboratories, pharmaceutical industry, food industry and other fields.

[0003] Wastewater in biological laboratories refers to liquid waste containing various biological and chemical substances generated during biological experiments. These wastewaters may pose potential biohazards, so they need to be collected and then processed in strict accordance with regulations. Current wastewater tanks used in biological experiments essentially use ordinary beakers for initial collection during the experiment. However, when wastewater is pipetted into ordinary beakers, it easily leaks out, contaminating the culture materials, clean benches, and other laboratory equipment surrounding the beakers. This method also fails to achieve solid-liquid separation of the wastewater. After pipette tips, bamboo sticks, tissue blocks, or filter paper containing wastewater are placed in the beakers used to hold the wastewater, they need to be separated later to avoid clogging or damage to subsequent processing equipment, which increases the workload. Utility Model Content

[0004] The utility model aims to provide a solid-liquid separation waste liquid cylinder used in a clean bench, so as to solve the problem that solid-liquid separation cannot be achieved during waste liquid collection in biological experiments and waste liquid may splash.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a solid-liquid separation waste liquid cylinder used in a clean bench, comprising a waste liquid cylinder and a filter cartridge, the top and bottom ends of the filter cartridge are both open, the bottom end of the filter cartridge is fixedly connected to a filter screen, the filter screen is used for waste liquid to flow through, and the filter cartridge is detachably connected to the top of the waste liquid cylinder, the top of the filter cartridge is detachably connected to a cartridge cover, and the cartridge cover is provided with a through hole.

[0006] The working principle of this utility model is as follows: Before use, the filter cartridge is connected to the top of the waste liquid tank and the cartridge cover is placed on the top of the filter cartridge. When the experiment requires the waste liquid to be discharged, the pipette tip is inserted into the through hole, and the waste liquid is then discharged into the filter cartridge. After the waste liquid is ejected from the tip, even if it hits the cylinder wall of the filter cartridge or the filter screen and splashes, it will directly splash onto the inner wall of the cartridge cover. Because the through hole is blocked by the pipette tip, the waste liquid cannot splash out of the through hole. The waste liquid then flows through the filter screen under the action of gravity and falls into the waste liquid tank below the filter screen. When waste materials such as gun tips, bamboo sticks, tissue blocks, etc. stained with waste liquid are placed into the filter cartridge through the through hole, the filter screen blocks the gun tips, bamboo sticks, tissue blocks, etc., preventing them from falling into the waste liquid tank. The waste liquid attached to the gun tips, bamboo sticks, tissue blocks, etc. passes through the filter screen under the action of gravity and drips into the waste liquid tank below the filter screen. After the solid-liquid separation is completed, the filter cartridge is removed, and the waste liquid in the waste liquid tank is poured into the designated place.

[0007] Beneficial effects of the utility model:

[0008] 1. This solution is used to collect experimental waste liquid, so that the waste liquid will not splash out and cause contamination of surrounding experimental equipment, and it can also ensure that the environment of the clean bench is clean and tidy.

[0009] 2. Use the filter net at the bottom of the filter cartridge to filter the gun tips, bamboo sticks, tissue blocks and other waste placed in the filter cartridge to achieve solid-liquid separation. After solid-liquid separation, remove the filter cartridge from the waste liquid tank and pour the waste liquid in the waste liquid tank into the specified place. Remove the cartridge cover on the filter cartridge and pour the solid waste in the filter cartridge into the specified place. This convenient and quick way to achieve solid-liquid separation greatly reduces the workload during solid-liquid separation.

[0010] Furthermore, the waste liquid tank is made of glass material. The purpose is that the waste liquid tank made of glass material is also easy to clean, and the second is that it can be sterilized with high-pressure steam.

[0011] Furthermore, the filter cartridge is a cylindrical filter cartridge, which is designed to facilitate the discharge of solid waste in the filter cartridge and reduce residue.

[0012] Furthermore, the top of the waste liquid tank is threadedly connected to the bottom of the filter cartridge. Its purpose is to make the connection between the filter cartridge and the waste liquid tank tight and not easy to fall off, and also to facilitate assembly and disassembly.

[0013] Furthermore, a drain pipe is provided outside the waste liquid tank, one end of which is connected to the bottom of the waste liquid tank, and the drain pipe is rotatably connected to the waste liquid tank, and the other end of the drain pipe extends vertically upward to the tank mouth of the waste liquid tank. The purpose is that, before the waste liquid tank is filled with waste liquid, the drain pipe is rotated so that the end of the drain pipe away from the waste liquid lever is in a vertically upward state. When the waste liquid tank is filled with waste liquid, the liquid level in the drain pipe can be known by the liquid level in the drain pipe according to the principle of the communicating vessel. When the waste liquid needs to be discharged, the drain pipe is rotated, and then the mouth of the drain pipe is facing downward. At this time, the waste liquid in the waste liquid tank can be quickly discharged through the drain pipe. In this way, the waste liquid can be discharged without removing the filter cartridge, thereby improving the use efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a cross-sectional view of the front view of a solid-liquid separation waste liquid tank used in a clean bench of the utility model;

[0015] Figure 2 This is a structural schematic diagram of a solid-liquid separation waste liquid tank used in a clean bench of the utility model. DETAILED DESCRIPTION

[0016] The following is further described in detail through specific implementation methods:

[0017] The reference numerals in the drawings of the specification include: through hole 1, cylinder cover 2, filter cylinder 3, filter screen 4, drain pipe 5, and waste liquid tank 6.

[0018] The embodiment is basically as shown in the attached Figure 1 and attached Figure 2 As shown:

[0019] A solid-liquid separation waste liquid cylinder used in a clean bench includes a waste liquid cylinder 6 and a filter cartridge 3 made of glass material. The waste liquid cylinder 6 and the filter cartridge 3 are both cylindrical and have the same diameter. The top and bottom ends of the filter cartridge 3 are both open. The bottom end of the filter cartridge 3 is fixedly connected to a filter screen 4, which is used for waste liquid to flow through. The filter cartridge 3 is threadedly connected to the top of the waste liquid cylinder 6. The top of the filter cartridge 3 is detachably connected to a cylinder cover 2, which is provided with a through hole 1. A drain pipe 5 is provided on the outside of the waste liquid cylinder 6. One end of the drain pipe 5 is connected to the bottom of the waste liquid cylinder 6, and the drain pipe 5 is rotatably connected to the waste liquid cylinder 6. A sealing ring is provided at the rotatable connection between the drain pipe 5 and the waste liquid cylinder 6 to prevent waste liquid leakage. The other end of the drain pipe 5 extends vertically upward to the cylinder mouth of the waste liquid cylinder 6.

[0020] The specific implementation process is as follows:

[0021] Before use, the filter cartridge 3 is connected to the top of the waste liquid cylinder 6, and the cylinder cover 2 is placed on the top of the filter cartridge 3, while the end of the drain pipe 5 away from the waste liquid lever is in a vertical upward state. When it is necessary to discharge waste liquid during the experiment, the tip of the pipette is inserted into the through hole 1, and then the waste liquid is pumped into the filter cartridge 3. After the waste liquid is ejected from the tip of the pipette, even if the waste liquid hits the cylinder wall of the filter cartridge 3 or the filter screen 4 and splashes, it will directly splash onto the inner wall of the cylinder cover 2. Since the through hole 1 is blocked by the tip of the pipette, the waste liquid cannot splash out from the through hole 1. Then, the waste liquid flows through the filter screen 4 under the action of gravity and falls into the waste liquid cylinder 6 below the filter screen 4. When the waste materials such as the gun tip, bamboo stick, tissue block stained with waste liquid are placed in the filter cartridge 3 through the through hole 1, the filter screen 4 blocks the gun tip, bamboo stick, tissue block and other waste materials so that they cannot fall into the waste liquid cylinder 6. The waste liquid attached to the gun tip, bamboo stick, tissue block and other waste materials passes through the filter screen 4 under the action of gravity and drips into the waste liquid cylinder 6 below the filter screen 4. After the solid-liquid separation is completed, the filter cartridge 3 is removed and the waste liquid in the waste liquid cylinder 6 is poured into the specified place. When the waste liquid is contained, the waste liquid cylinder 6 utilizes the principle of the communicating vessel to know the liquid level in the waste liquid cylinder 6 through the liquid level in the drain pipe 5. When it is necessary to discharge the waste liquid, the drain pipe 5 is rotated, and then the pipe mouth of the drain pipe 5 is downward. At this time, the waste liquid in the waste liquid cylinder 6 can be quickly discharged through the drain pipe 5. So, the waste liquid can be discharged without removing the filter cartridge 3, thereby improving the efficiency of use.

Claims

1. A solid-liquid separation waste liquid tank used in a clean bench, characterized by: It includes a waste liquid tank and a filter cartridge. The top and bottom ends of the filter cartridge are both open. The bottom end of the filter cartridge is fixedly connected to a filter screen, which is used for waste liquid to flow through. The filter cartridge is detachably connected to the top of the waste liquid tank. The top of the filter cartridge is detachably connected to a cartridge cover, which is provided with a through hole.

2. The solid-liquid separation waste liquid tank used in a clean bench according to claim 1, characterized in that: The waste liquid tank is made of glass.

3. The solid-liquid separation waste liquid tank used in a clean bench according to claim 2, characterized in that: The filter cartridge is a cylindrical filter cartridge.

4. The solid-liquid separation waste liquid tank used in a clean bench according to claim 3, characterized in that: The top of the waste liquid tank is threadedly connected to the bottom of the filter cartridge.

5. The solid-liquid separation waste liquid tank used in a clean bench according to claim 4, characterized in that: A drain pipe is provided outside the waste liquid tank, one end of the drain pipe is communicated with the bottom of the waste liquid tank, and the drain pipe is rotatably connected to the waste liquid tank, and the other end of the drain pipe extends vertically upward to the tank mouth of the waste liquid tank.

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