A new type of screening device for pharmaceutical powder
Patent Information
- Application Number
- CN202522227693.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-22
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-10-22
AI Technical Summary
[0002]在药品的生产过程中,粉末状态的药粉根据生产需求会有过筛的工艺,或者经过混合后从大料斗向小料斗转移,也要进行过筛,在现有的工艺下是通过人工直接进行过筛,但是在实际操作过程中存在以下问题,1)人工过筛效率较低;2)人工过筛时物料是暴露在空气中的,有被污染及吸附空气中水汽结块的风险
1.本实用新型采用全新的结构设计,能够实现自动化的过筛加工,在使用时可以作为一个单独的筛选模块进行安装使用,在安装时的灵活性更强,主体筛选结构采用双层过滤网,配合物料输送筒,能够确保在进行筛选时处于密封的空间内,不会受到周围环境的影响。
Smart Images

Figure CN224807803U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pharmaceutical production and processing technology, and in particular to a novel sieving device for pharmaceutical powder. Background Technology
[0002] In the pharmaceutical production process, powdered pharmaceutical materials often require sieving depending on production needs, or sieving is necessary when transferring them from a large hopper to a small hopper after mixing. Currently, sieving is done manually, but this process presents several problems: 1) Manual sieving is inefficient; 2) During manual sieving, the material is exposed to air, increasing the risk of contamination and agglomeration due to the absorption of airborne moisture. Furthermore, existing screening equipment is not only bulky and costly to use, but also lacks flexibility in installation and operation. Utility Model Content
[0003] The purpose of this invention is to provide a novel sieving device for pharmaceutical powders. It adopts a completely new structural design and can be installed and used as a separate screening module, offering greater flexibility during installation. The main screening structure uses a double-layer filter screen, which, together with the material conveying cylinder, ensures that the screening process is conducted in a sealed space, unaffected by the surrounding environment. During installation, it can be placed directly on the ground or suspended in the air with the help of sliding rails, offering greater flexibility, occupying less space, and reducing operating costs.
[0004] The technical solution of this utility model is as follows: A novel sieving device for pharmaceutical powder is characterized by comprising a main sieve body structure, wherein a filter screen is provided inside the main sieve body structure, a set of material conveying cylinders are respectively provided on the upper and lower sides of the main sieve body structure, a material conveying pipe combination sealing groove is provided on the outer position of the material conveying cylinders in the vertical direction, a transition connection support frame is provided on the side of the main sieve body structure, a main screening oscillator is provided on the outer side of the transition connection support frame, the transition connection support frame is capable of telescopic movement, a connecting support rod is provided at the lower end of the main screening oscillator, an integral mounting base is provided at the lower end of the connecting support rod, a support foot is provided at the lower end of the integral mounting base, and two sets of second mounting mating seats are provided at the upper end of the integral mounting base, the width of the upper end being greater than the width of the lower end.
[0005] Furthermore, the filter screen consists of two layers of filter screens, which are connected to the main screen structure by snap-fit.
[0006] Furthermore, the upper and lower material conveying cylinders are symmetrical in structure, and the material conveying cylinders are conical in shape.
[0007] Furthermore, the over-connection support frame can be extended and retracted via hydraulic control.
[0008] Furthermore, the length of the overall mounting base in the front-to-back direction is the same as the length of the second mounting mating seat in the front-to-back direction, and the second mounting mating seat and the overall mounting base are connected together by welding.
[0009] Furthermore, a buffer and shock-absorbing structure is provided between the connecting support rod and the overall mounting base.
[0010] The beneficial effects of this utility model are: 1. This utility model adopts a brand-new structural design, which can realize automated screening processing. It can be installed and used as a separate screening module, which is more flexible in installation. The main screening structure adopts a double-layer filter screen, which, together with the material conveying cylinder, can ensure that the screening is carried out in a sealed space and is not affected by the surrounding environment.
[0011] 2. It offers greater flexibility in installation and placement. During installation, it can be placed directly on the ground or suspended in the air with the help of sliding rails. This makes installation more convenient, occupies less space, and has lower operating costs. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a front view of the present invention; Figure 3 This is a schematic diagram of the left side of this utility model; Figure 4 This is a schematic diagram on the right side of the present invention; Figure 5 This is a top view of the present invention; Figure 6 This is a bottom view of the present invention; Figure 7 This is a three-dimensional structural diagram of the present invention in the second direction; In the diagram: 1. Main screen body structure, 2. Filter screen, 3. Material conveying cylinder, 4. Material conveying pipeline combination sealing groove, 5. Transition connection support frame, 6. Main screening vibrator, 7. Connecting support rod, 8. Overall mounting base, 9. Placement support feet, 10. Second mounting mating seat. Detailed Implementation
[0013] like Figures 1 to 7As shown, a novel sieving device for medicinal powder includes a main sieve structure 1, with a filter screen 2 inside for screening medicinal powder. A set of material conveying cylinders 3 are respectively provided on the upper and lower sides of the main sieve structure 1 for material conveying. A material conveying pipe combination sealing groove 4 is provided on the outer position of the material conveying cylinders 3 in the upper and lower directions, enabling material transfer between processing equipment during material processing. A transitional connection support frame 5 is provided on the side of the main sieve structure 1, and a main screening oscillator 6 is provided on the outer side of the transitional connection support frame 5. The transitional connection support frame 5 is telescopic and can be flexibly adjusted as needed to meet installation requirements in different spaces. A connecting support rod 7 is provided at the lower end of the main screening oscillator 6, and an integral mounting base 8 is provided at the lower end of the integral mounting base 8. Support legs 9 are provided at the lower end of the integral mounting base 8, allowing it to be placed directly on the ground. The upper end of the overall mounting base 8 is provided with two sets of second mounting mating seats 10. The width of the upper position is greater than the width of the lower position. This structure, combined with the slide rail, allows for installation and assembly, enabling safe and stable movement and assembly as needed during later use. It also allows for the rapid installation of multiple devices while minimizing overall space occupation. It adopts a completely new structural design and can be used as a standalone screening module, offering greater installation flexibility. The main screening structure uses a double-layer filter screen, combined with a material conveying cylinder, ensuring that screening is conducted in a sealed space, unaffected by the surrounding environment. During installation, it can be placed directly on the ground or suspended in the air using the slide rail, offering greater installation flexibility, smaller overall space occupation, and lower operating costs.
[0014] Preferably, the filter screen 2 consists of two layers of filter screens, which are connected to the main screen structure 1 by snap-fit. This makes the filtration and screening process more efficient, enables step-by-step screening, ensures better smoothness during filtration, and allows for quick replacement and maintenance, making maintenance more convenient.
[0015] Preferably, the upper and lower material conveying cylinders 3 are symmetrical in structure, and the material conveying cylinder 3 is conical in shape. This can effectively reduce the space for material scattering during the screening process and make the internal material conveying smoother.
[0016] Preferably, the transition connection support frame 5 can be extended and retracted through hydraulic control, which enhances safety during the extension and retraction adjustment.
[0017] Preferably, the length of the integral mounting base 8 in the front-to-back direction is the same as the length of the second mounting mating seat 10 in the front-to-back direction. The second mounting mating seat 10 and the integral mounting base 8 are connected together by welding to ensure stronger load-bearing capacity and more reliable overall installation stability during installation.
[0018] As a priority, a buffer and shock-absorbing structure, such as a spring, is provided between the connecting support rod 7 and the overall mounting base 8, which can reduce the impact of the vibration of the oscillator on the installation position and improve the safety of the installation position.
[0019] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements or substitutions can be made without departing from the principle of this utility model, and these improvements or substitutions should also be considered within the protection scope of this utility model.
Claims
1. A novel sieving device for medicinal powder, characterized in that: The system includes a main screen structure (1), with a filter screen (2) inside. A set of material conveying cylinders (3) are provided on the upper and lower sides of the main screen structure (1). A material conveying pipe combination sealing groove (4) is provided on the outer position of the material conveying cylinders (3) in the upper and lower directions. A transition connection support frame (5) is provided on the side of the main screen structure (1). A main screening oscillator (6) is provided on the outer side of the transition connection support frame (5). The transition connection support frame (5) can be extended and retracted. A connecting support rod (7) is provided at the lower end of the main screening oscillator (6). An integral mounting base (8) is provided at the lower end of the integral mounting base (8). A support foot (9) is provided at the lower end of the integral mounting base (8). Two sets of second mounting mating seats (10) are provided at the upper end. The width of the upper end is greater than the width of the lower end.
2. The novel sieving device for medicinal powder according to claim 1, characterized in that: The filter screen (2) consists of two layers of filter screens, which are connected to the main screen structure (1) by means of snap-fit.
3. The novel sieving device for pharmaceutical powder according to claim 1, characterized in that: The upper and lower material conveying cylinders (3) are symmetrical in structure, and the material conveying cylinders (3) are conical in shape.
4. The novel sieving device for pharmaceutical powder according to claim 1, characterized in that: The over-connection support frame (5) can be extended and retracted by hydraulic control.
5. A novel sieving device for medicinal powder according to claim 1, characterized in that: The length of the overall mounting base (8) in the front-to-back direction is the same as the length of the second mounting mating seat (10) in the front-to-back direction. The second mounting mating seat (10) and the overall mounting base (8) are connected together by welding.
6. The novel sieving device for medicinal powder according to claim 1, characterized in that: A buffer and shock absorption structure is provided between the connecting support rod (7) and the overall mounting base (8).