An NC membrane drying apparatus for reagent kit production

Abstract

This utility model relates to the field of NC membrane drying technology, and more particularly to an NC membrane drying device for reagent kit production. The technical solution includes a device base, a drying chamber, and a replenishment tank. The drying chamber and the replenishment tank are staggered and fixedly connected end-to-end on the upper part of the device base. A storage tank is fixed to the upper part of the replenishment tank, and a connecting pipe is fixed between the storage tank and the replenishment tank. The bottom of the connecting pipe is fixed to the inner wall of the upper part of the replenishment tank and a spray pipe is fixed thereon. A nozzle is installed on the spray pipe. A temperature sensor and a heating rod are fixed inside the drying chamber. This utility model utilizes the staggered distribution of the replenishment tank and the drying chamber for drying, allowing for simultaneous replenishment of the formulation solution during drying. This avoids the evaporation of active ingredients that could affect the quality of the NC membrane. Furthermore, the total amount of formulation solution required for drying in a single multi-stage drying process is reduced, allowing for operation at lower temperatures and improving drying safety.

Description

Technical Field

[0001] This utility model relates to the field of NC membrane drying technology, specifically to an NC membrane drying device for reagent kit production. Background Technology

[0002] NC membrane, short for nitrocellulose membrane, is a consumable widely used in biological experiments. It is mainly made of nitrocellulose and has a porous structure that allows liquids and small molecules to pass through. As a carrier of C / T lines, it is used to detect specific biomarkers. Also as a carrier of C / T lines, it is the site where immune responses occur.

[0003] NC membranes are typically made by coating a base membrane with a liquid and then drying it. To prevent the evaporation of some active ingredients, some manufacturers will form the membrane in a sealed chamber while replenishing the formulation solution. In the whole process, if one-time drying and forming is used, the drying time will be longer due to the large thickness of the formulation slurry on the surface. The base membrane will be exposed to high temperature for a long time, which will increase the risk of damage. In addition, if the drying is not timely, the active ingredients will evaporate more seriously, which will have a certain impact on the quality of the NC membrane. Utility Model Content

[0004] The purpose of this invention is to provide an NC membrane drying device for reagent kit production, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: It includes a device base, a drying chamber, and a replenishment tank. The drying chamber and the replenishment tank are alternately installed on the upper part of the device base and are fixedly connected end-to-end. A storage tank is fixed to the upper part of the replenishment tank. A connecting pipe is fixed between the storage tank and the replenishment tank. The bottom of the connecting pipe is fixed to the inner wall of the upper part of the replenishment tank and a spray pipe is fixed thereon. A nozzle is provided on the spray pipe. A temperature sensor and a heating rod are fixed inside the drying chamber.

[0006] Preferably, an exhaust pipe is fixed to the upper end of the drying chamber, and a temperature control panel is fixed to the outer wall of the drying chamber. The exhaust pipe can be used to discharge the drying steam, and the temperature control panel and temperature sensor can be used to preset and monitor the temperature inside the drying chamber.

[0007] Preferably, a fan is provided on the end side wall of the drying chamber, a guide frame is fixed inside the drying chamber at a position corresponding to the fan, an electrostatic rod is fixed inside the guide frame, and a dustproof net is fixed on the outer side wall of the drying chamber at a position corresponding to the fan.

[0008] Preferably, the number of spray pipes located in the replenishment tank decreases sequentially from front to back.

[0009] Preferably, an observation window is provided in the middle of the side wall of both the drying box and the replenishment box, and support rollers are equidistantly rotatably connected inside both the drying box and the replenishment box, with the upper end of the support rollers aligned with the observation window.

[0010] Preferably, an injection pipe is fixed to the upper end of the liquid storage tank, and a solenoid valve is installed on both the injection pipe and the connecting pipe. A liquid level sensor is fixed to the upper end of the liquid storage tank, a control panel is fixed to the outer wall of the liquid storage tank, and an air inlet pipe is fixed to the upper end of the liquid storage tank. The upper end of the air inlet pipe has an arc structure and the opening faces downward.

[0011] Compared with the prior art, the beneficial effects of this utility model are: by using the alternating distribution of the replenishment tank and the drying tank for drying, the formula liquid can be replenished at the same time as drying, avoiding the impact of the volatilization of effective ingredients on the quality of the NC membrane. In addition, the total amount of formula liquid required for drying in a multi-stage drying is reduced, and the operation can be carried out at a lower temperature, which can improve the drying safety. Attached Figure Description

[0012] Figure 1 This is a side view diagram of the NC membrane drying device for reagent kit production according to the present invention.

[0013] Figure 2 This is a schematic diagram of the top inner wall structure of different replenishment tanks in an NC membrane drying device for reagent kit production according to this utility model;

[0014] Figure 3 This is a front cross-sectional view of the drying chamber of an NC membrane drying device for reagent kit production according to this utility model.

[0015] Figure 4 This invention relates to an NC membrane drying device for reagent kit production. Figure 1 Enlarged structural diagram at point A in the middle.

[0016] In the diagram: 1. Equipment base; 2. Drying oven; 21. Heating rod; 22. Temperature sensor; 23. Exhaust pipe; 24. Temperature control panel; 3. Liquid replenishment tank; 31. Spray pipe; 32. Spray nozzle; 4. Liquid storage tank; 41. Injection pipe; 42. Liquid level sensor; 43. Air inlet pipe; 44. Control panel; 45. Connecting pipe; 5. Observation window; 6. Fan; 61. Dustproof net; 62. Guide frame; 63. Static electricity bar; 7. Support roller. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1-4 This utility model provides a technical solution: it includes a base 1, a drying chamber 2, and a replenishment tank 3. The drying chamber 2 and the replenishment tank 3 are alternately installed on the upper end of the base 1 and are fixedly connected end to end. A storage tank 4 is fixed to the upper end of the replenishment tank 3. A connecting pipe 45 is fixed between the storage tank 4 and the replenishment tank 3. The bottom of the connecting pipe 45 is fixed to the inner wall of the upper end of the replenishment tank 3 and a spray pipe 31 is fixed thereon. A nozzle 32 is provided on the spray pipe 31. A temperature sensor 22 and a heating rod 21 are fixed inside the drying chamber 2. An exhaust pipe 23 is fixed to the upper end of the drying chamber 2. A temperature control panel 24 is fixed to the side wall. The number of spray pipes 31 in the replenishment tank 3 decreases sequentially from front to back. Since the number of spray pipes 31 in the replenishment tank 3 decreases sequentially, it can be ensured that the amount of formulation liquid sprayed onto the base film is gradually reduced. At the same time, after each spray pipe 31 finishes spraying, it enters the drying oven 2 for drying. Due to the reduction of formulation liquid, the temperature in the drying oven 2 can be gradually reduced when setting the temperature. Therefore, while ensuring that the formulation liquid is completely dried, the base film can be dried at a lower temperature.

[0019] A fan 6 is located on the end side wall of the drying chamber 2. A guide frame 62 is fixed inside the drying chamber 2 at a position corresponding to the fan 6. An electrostatic rod 63 is fixed inside the guide frame 62. A dustproof net 61 is fixed on the outer side wall of the drying chamber 2 at a position corresponding to the fan 6. During the drying process, the airflow speed on the surface of the base film can be increased by the guide of the fan 6 and the guide frame 62, thereby improving the drying efficiency. At the same time, placing the fan 6 at the end of the drying chamber 2 allows for the initial drying of the formulation liquid by heating, avoiding the risk of the formulation liquid being blown away by the airflow and resulting in uneven distribution of the formulation liquid on the base film. Furthermore, when the fan 6 is working, the dustproof net 61 can be used for initial dust prevention, reducing the entry of dust. At the same time, the dust that enters the guide frame 62 can be electrostatically adsorbed by the electrostatic rod 63, reducing the contamination of the NC film.

[0020] Both the drying oven 2 and the replenishment tank 3 have observation windows 5 in the middle of their side walls. Both the drying oven 2 and the replenishment tank 3 are equidistantly connected to support rollers 7, with the upper end of the support rollers 7 aligned with the observation windows 5.

[0021] An injection pipe 41 is fixed to the upper end of the liquid storage tank 4. Solenoid valves are installed on both the injection pipe 41 and the connecting pipe 45. A liquid level sensor 42 is fixed to the upper end of the liquid storage tank 4. A control panel 44 is fixed to the outer wall of the liquid storage tank 4. An air inlet pipe 43 is fixed to the upper end of the liquid storage tank 4. The upper end of the air inlet pipe 43 has an arc structure and the opening faces downward. The air inlet pipe 43 can ensure the stability of the air pressure inside the liquid storage tank, and its downward opening can reduce the entry of dust.

[0022] Working Principle: First, connect the entire device to an external power source. During NC membrane production, the base membrane can be sequentially passed through the replenishment tank 3 and the drying chamber 2. Upon entering the replenishment tank 3, the formulation solution from the storage tank 4 can be sprayed onto the base membrane using the connecting pipe 45 and the spray pipe 31. Upon entering the drying chamber 2, the formulation solution is dried using high temperature. Throughout the process, the formulation solution is injected into the storage tank 4 via the external injection pipe 41, and the liquid level is monitored using a level sensor. Simultaneously, the preset liquid level is set using the control panel 44. When the liquid level reaches the preset height, the solenoid valve on the injection pipe 41 is closed to stop the injection; conversely, the solenoid valve is opened when the liquid level falls below the preset height. Maintaining a consistent liquid level in the storage tank 4 ensures consistent discharge pressure in the connecting pipe 45. Since the number of spray pipes 31 in the replenishment tank 3 decreases sequentially, the amount of formulation liquid sprayed onto the base membrane decreases progressively. After each spray pipe 31 completes its application, it enters the drying chamber 2 for drying. Due to the reduction in formulation liquid, the temperature in the drying chamber 2 can be progressively lowered. Therefore, while ensuring complete drying of the formulation liquid, the base membrane can be dried at a lower temperature, improving its safety. Furthermore, continuous replenishment of the formulation liquid reduces the impact of active ingredient volatilization, providing better assurance for the quality of the NC membrane.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An NC film drying device for kit production, comprising a device base (1), a drying box (2) and a liquid supplementing box (3), characterized in that: The drying box (2) and the replenishment box (3) are installed alternately on the upper end of the equipment base (1) and are fixedly connected end to end. A storage tank (4) is fixed on the upper end of the replenishment box (3). A connecting pipe (45) is fixed between the storage tank (4) and the replenishment box (3). The bottom of the connecting pipe (45) is fixed to the inner wall of the upper end of the replenishment box (3) and a spray pipe (31) is fixed thereon. A nozzle (32) is provided on the spray pipe (31). A temperature sensor (22) and a heating rod (21) are fixed inside the drying box (2).

2. The NC film drying device for kit production according to claim 1, characterized by: An exhaust pipe (23) is fixed to the upper end of the drying box (2), and a temperature control panel (24) is fixed to the outer wall of the drying box (2).

3. The NC film drying device for kit production according to claim 1, characterized by: The drying box (2) has a fan (6) on the end side wall. A guide frame (62) is fixed inside the drying box (2) at a position corresponding to the fan (6). An electrostatic rod (63) is fixed inside the guide frame (62). A dustproof net (61) is fixed on the outer side wall of the drying box (2) at a position corresponding to the fan (6).

4. The NC film drying device for kit production according to claim 1, characterized by: The number of spray pipes (31) located in the replenishment tank (3) decreases sequentially from front to back.

5. The NC membrane drying apparatus for reagent kit production according to claim 1, characterized in that: The drying box (2) and the replenishment tank (3) are both provided with observation windows (5) in the middle of their side walls. The drying box (2) and the replenishment tank (3) are both equidistantly connected with support rollers (7), and the upper end of the support rollers (7) is aligned with the observation window (5).

6. The NC film drying apparatus for kit production according to claim 1, characterized by: An injection pipe (41) is fixed to the upper end of the liquid storage tank (4). Solenoid valves are installed on both the injection pipe (41) and the connecting pipe (45). A liquid level sensor (42) is fixed to the upper end of the liquid storage tank (4). A control panel (44) is fixed to the outer wall of the liquid storage tank (4). An air inlet pipe (43) is fixed to the upper end of the liquid storage tank (4). The upper end of the air inlet pipe (43) has an arc structure and the opening faces downward.

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