A dust protection device and system

Abstract

This utility model relates to the field of liquid preparation tank protection, specifically to a dust protection device and a dust protection liquid preparation tank system. The device includes a soft membrane (1) and a sleeve (6). The soft membrane (1) is detachably installed between the liquid preparation tank cover (9) and the liquid preparation tank opening (10). The soft membrane (1) is provided with a circular hole (3), which is connected to the sleeve (6). This utility model device has low cost, strong protective effect, small space occupation, and simple manufacturing.

Description

Technical Field

[0001] This utility model relates to the field of liquid preparation tank protection, specifically to a dust protection device and a dust protection liquid preparation tank system. Background Technology

[0002] Mixing tanks are commonly used production equipment in the pharmaceutical industry. Also known as preparation tanks or blending tanks, they are containers used for mixing, stirring, and reacting one or more materials according to process ratios. They are modern GMP standard equipment manufactured according to pharmaceutical industry and hygiene standards. They mainly include a tank lid, tank body, jacket, stirring device, tank lid lifting device, temperature and pressure sensors, and piping interfaces. They can be used for preparing pharmaceutical solutions, crystallizing pharmaceuticals, and drying pharmaceutical powders.

[0003] In existing solution preparation technologies, manual operation by opening the tank lid is usually required. Opening the tank exposes dust, which can contaminate the preparation environment and solution, affecting the quality of the prepared solution. Furthermore, some drugs are highly active, highly allergenic, or cytotoxic; any spillage of drug dust poses a significant threat to the health of production personnel. When building new production lines, this issue is usually considered in the initial design, using isolators for feeding. However, these devices are typically expensive, complex, and space-consuming. For most existing production lines, there is insufficient design space for modification, and there are no effective modification measures specifically for dust protection at the opening of the solution preparation tank, or the modification costs are prohibitively high.

[0004] Therefore, a low-cost, highly protective, space-saving, and easy-to-manufacture soft isolation device was developed for dust protection of liquid preparation tanks already in operation. Utility Model Content

[0005] To address the aforementioned technical limitations, this utility model provides a dust protection device. The device includes a flexible membrane and a sleeve, installed between the lid and opening of a dispensing tank to effectively prevent dust exposure when the tank is opened. The flexible membrane is detachably installed between the lid and opening of the dispensing tank. It has a circular hole connected to the sleeve, which is placed inside the tank. When the lid is opened, the upper edge of the membrane is secured to the lid with an elastic band, and the lower edge is secured to the opening with a stainless steel clamp, placing the membrane in an extended state.

[0006] In this utility model, as one embodiment, the soft membrane is attached to both sides, and the soft membrane forms a cylindrical structure around the liquid preparation tank body by the adhesion of the soft membrane. As another embodiment, the soft membrane is an integral structure.

[0007] In this invention, as one embodiment, the soft membrane is provided with, but is not limited to, 1 to 3 holes. For example, the number can be 1, 2, 3, 4, 5, 6, 7, 8, or any natural value within the required range. Preferably, 3 holes are evenly distributed throughout. Typically, 3 gloves are sufficient for production needs with the dispensing tank, with each hole connecting to one glove. For other similar dispensing tanks, the number of holes and gloves can be changed as needed.

[0008] In this invention, as one embodiment, the end of the sleeve is provided with a silicone ring to achieve a seal between the sleeve and the glove.

[0009] In this invention, as one embodiment, the upper edge of the flexible membrane is provided with an elastic band, which secures the upper edge of the flexible membrane to the lid of the mixing tank. The elastic band fixes the upper edge of the flexible membrane to the lid. The lower edge of the flexible membrane is provided with a stainless steel clamp, which seals the lower edge of the flexible membrane to the tank opening. As another embodiment, the side of the mixing tank lid has a lifting device, which lifts the lid using, but is not limited to, a hydraulic rod. When the mixing tank lid rises, it can cause the flexible membrane to extend. The upper edge of the flexible membrane is fixed to the lid with an elastic band, and the lower edge of the flexible membrane is fixed to the tank opening with a stainless steel clamp. When the lid is lifted and opened, the flexible membrane is naturally stretched.

[0010] In this invention, as one embodiment, the soft membrane and sleeve are made of thermoplastic polyurethane elastomer (TPU), and the gloves are made of nitrile material, which has good flexibility, sealing properties and resistance to organic solvents.

[0011] This utility model provides a dust protection liquid preparation tank system, which includes the dust protection device, liquid preparation tank cover and liquid preparation tank body described above.

[0012] In this utility model, as one embodiment, the tank cover is provided with a stirring rod and a feeding port, and the bottom of the liquid preparation tank is provided with a discharge port.

[0013] The structure of this utility model includes, but is not limited to, a soft membrane, Velcro, sleeves, gloves, stainless steel clamps, silicone rings, or elastic bands.

[0014] In this utility model, as one embodiment, the dust protection liquid preparation tank system includes a soft membrane, elastic band, round hole, Velcro, elastic band perforation, stainless steel clamp, sleeve, glove, silicone ring, liquid preparation tank cover, upper edge of the soft membrane, lower edge of the soft membrane, tank opening, stirring rod, feeding port, discharging port, liquid preparation tank body, and support rod.

[0015] This utility model has the characteristics of strong protection, small space occupation, simple manufacturing and convenient use.

[0016] Compared with existing technologies, the advantages of this invention are as follows: The soft isolation membrane of the mixing tank uses a soft material and is fixed to the tank lid with elastic bands, while a stainless steel clamp is fixed to the tank opening. This process greatly reduces the spillage of dusty materials from the mixing tank into the internal environment. The sleeve is welded and sealed to the soft membrane, and then tightly sealed to the gloves with a silicone ring, ensuring that production personnel do not come into contact with the materials inside the tank during operation, thus guaranteeing personnel health and safety. This technical solution has a simple structure, readily available materials, short manufacturing cycle, and low cost. It is convenient for production personnel to install, disassemble, and operate, and in particular, provides an optimal solution for the retrofitting of existing mixing tanks. Attached Figure Description

[0017] Figure 1 Example 1: A schematic diagram of the liquid preparation tank and the product structure after installing the dust protection device;

[0018] Figure 2 Example 1: Schematic diagram of the dust protection device structure;

[0019] Explanation of reference numerals in the attached diagram: 1. Soft membrane; 2. Elastic band; 3. Round hole; 4. Velcro; 41. Elastic band perforation; 5. Stainless steel clamp; 6. Sleeve; 7. Glove; 8. Silicone ring; 9. Liquid preparation tank lid; 91. Upper edge of the soft membrane; 92. Lower edge of the soft membrane; 10. Tank opening; 11. Stirring rod; 12. Feeding port; 13. Discharge port; 14. Liquid preparation tank body; 15. Support rod. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] like Figure 1 and 2 As shown, as one of the embodiments, the dust protection device of this utility model includes a soft membrane 1 and a sleeve 6. The soft membrane 1 is detachably installed between the liquid tank cover 9 and the liquid tank opening 10 of the liquid tank. The soft membrane 1 is provided with a round hole 3, and the round hole 3 is connected to the sleeve 6.

[0023] As one implementation scheme, the soft membrane 1 consists of two parts, each of which has Velcro 4 attached to both sides, such as... Figure 2 The two vertical parallel lines shown are a schematic diagram of the Velcro 4 on both sides of the soft membrane. The Velcro 4 is located at both ends of the soft membrane 1. The soft membrane 1 forms a cylindrical structure around the liquid preparation tank body through the adhesion of the Velcro.

[0024] As one of the implementation schemes, the soft membrane 1 is provided with three round holes 3, each 3 is connected to a sleeve 6, and the ends of the sleeve 6 are respectively connected to the glove 7.

[0025] As one implementation scheme, the end of the sleeve 6 is provided with a silicone ring 8 to achieve a seal between the sleeve 6 and the glove 7.

[0026] As one implementation scheme, the upper edge of the soft membrane 1 is provided with an elastic band 2. The function of the elastic band is to fix the upper edge of the soft membrane to the can lid. The elastic band 2 passes through the elastic band perforation 41, such as... Figure 2 As shown. The upper edge of the flexible membrane 1 is tightly connected to the liquid preparation tank cover 9 of the liquid preparation tank by an elastic band 2; the lower edge of the flexible membrane 1 is provided with a stainless steel clamp 5, and the lower edge of the flexible membrane 1 is tightly sealed to the tank opening 10 by the stainless steel clamp 5; a lifting device is provided on the liquid preparation tank cover 9 to lift it, and the lifting of the liquid preparation tank cover 9 will cause the flexible membrane 1 to extend; the lowering of the liquid preparation tank cover 9 can cause the flexible membrane 1 to contract.

[0027] As one implementation scheme, the soft film 1 and the sleeve 6 are thermoplastic polyurethane elastomers.

[0028] like Figure 1 As shown, this utility model provides a dust protection liquid preparation tank system, which includes the dust protection device, a liquid preparation tank cover 9, and a liquid preparation tank body 14. In one embodiment, the tank cover 9 is provided with a stirring rod 11 and a feeding port 12, and the bottom of the liquid preparation tank body 14 is provided with a discharge port 13. In another embodiment, the system includes: a soft membrane 1, an elastic band 2, a round hole 3, Velcro 4, an elastic band perforation 41, a stainless steel clamp 5, a sleeve 6, a glove 7, a silicone ring 8, a liquid preparation tank cover 9, an upper edge 91 of the soft membrane, a lower edge 92 of the soft membrane, a tank opening 10, a stirring rod 11, a feeding port 12, a discharge port 13, a liquid preparation tank body 14, and a support rod 15.

[0029] Before dispensing the solution, open the can lid 9 and wrap the flexible membrane 1 around the upper edge 91 of the can lid, securing it with Velcro. Secure the upper edge 91 to the can lid 9 using elastic band 2, and secure the lower edge 92 to the can opening using a stainless steel hoop. After securing, place the gloves 7 and sleeves 6 outside the can, and lower the can lid 9 to seal the can. Each time the can lid 9 needs to be opened, lift the can lid 9 to open the flexible membrane 1, and manually handle the material inside the can through the gloves 7 on the sleeves 6. After production is complete, lift the can lid and remove and discard the flexible membrane 1.

Claims

1. A dust guard device, characterized in that, The device includes a soft membrane (1) and a sleeve (6). The soft membrane (1) is detachably installed between the liquid preparation tank cover (9) and the liquid preparation tank opening (10) of the liquid preparation tank. The soft membrane (1) is provided with a round hole (3), which is connected to the sleeve (6).

2. The apparatus of claim 1, wherein, The soft membrane (1) has Velcro (4) attached to both sides, and the soft membrane (1) forms a cylindrical structure around the liquid preparation tank body by the Velcro (4) bonding.

3. The apparatus of claim 1, wherein, The soft membrane (1) is provided with 1 to 5 round holes (3), each round hole (3) is connected to a sleeve (6), and the ends of the sleeve (6) are connected to the gloves (7).

4. The apparatus of claim 3, wherein, The soft membrane (1) is provided with three round holes (3).

5. The apparatus of claim 1, wherein, The sleeve (6) is provided with a silicone ring (8) at the end to achieve a seal between the sleeve (6) and the glove (7).

6. The apparatus of claim 1, wherein, The upper edge of the soft membrane (1) is provided with an elastic band (2), and the upper edge of the soft membrane (1) is connected to the liquid tank cover (9) of the liquid mixing tank by the elastic band (2); the lower edge of the soft membrane (1) is provided with a stainless steel clamp (5), and the lower edge of the soft membrane (1) is sealed to the tank opening (10) by the stainless steel clamp (5).

7. The apparatus of claim 6, wherein, The lifting of the liquid preparation tank cover (9) causes the soft membrane (1) to extend.

8. The apparatus of claim 1, wherein, The soft film (1) and sleeve (6) are thermoplastic polyurethane elastomers.

9. A dust protection solution tank system, characterized by The system includes the dust protection device according to any one of claims 1 to 8, a liquid preparation tank cover (9), and a liquid preparation tank body (14).

10. The system of claim 9, wherein, The liquid preparation tank cover (9) is provided with a stirring rod (11) and a feeding port (12), and the liquid preparation tank body (14) is provided with a discharge port (13) at the bottom.

11. The system of claim 9, wherein, The system includes: a soft membrane (1), an elastic band (2), a round hole (3), a Velcro strap (4), an elastic band perforation (41), a stainless steel clamp (5), a sleeve (6), a glove (7), a silicone ring (8), a liquid preparation tank lid (9), an upper edge of the soft membrane (91), a lower edge of the soft membrane (92), a tank opening (10), a stirring rod (11), a feeding port (12), a discharge port (13), a liquid preparation tank body (14), and a support rod (15).

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