A screening basket

Abstract

A kind of screening basket, including ring, discharge pipe is welded on ring, discharge port is communicated with discharge pipe, and discharge port is set on the outer periphery of ring, the lower end of ring is welded with mounting ring, fixed ring is installed on mounting ring by bolt, the inner periphery of fixed ring is welded with multiple support ribs, the upper wall of support rib is arc structure, the upper wall of support rib is equipped with multiple support rings, filter cover of convex arc structure is covered on support ring, and multiple screening holes are set on filter cover.The filter cover of the present application is designed as convex arc structure for filtering first, and the particles to be screened are moved to the edge of the filter cover by this design, so that the discharge of these filtered particles is facilitated.The filter cover is shaped by support rib and support ring in the present application, so that the structure of the filter cover is ensured to be convex arc, and the filter cover made of flexible material can also be selected by this design.

Description

Technical Field

[0001] This utility model relates to the field of drug sieving technology, and in particular to a sieving basket. Background Technology

[0002] In the preparation of powdered drugs, the powder is sieved through multiple stages using a sieve separator. Currently, the sieving baskets on these separators have structures such as... Figure 6 As shown, it includes a ring 10, on which a discharge pipe 11 is welded. A discharge port 12 is opened on the outer circumference of the ring 10, communicating with the discharge pipe 11. A screen 1, circular in structure and horizontal in its lower end, is also provided. During sieving, this type of screen 1 cannot allow larger powder particles to move towards the discharge port 12, causing them to accumulate there. As the sieving volume increases, the load on the sieve increases, and the screen openings of the screen 1 are easily clogged, thus affecting the powder sieving operation. Utility Model Content

[0003] This utility model provides a screening basket to overcome the shortcomings of the prior art and solves the problem that particles that cannot pass through the screening basket tend to accumulate and affect screening, thus having strong practicality.

[0004] In order to achieve the purpose of this utility model, the following technology is proposed to be adopted:

[0005] A screening basket includes a ring with a discharge pipe welded to it. A discharge port is provided on the outer periphery of the ring and is connected to the discharge pipe. A mounting ring is welded to the lower end of the ring, and a fixing ring is installed on the mounting ring by bolts. Multiple support ribs are welded to the inner periphery of the fixing ring. The upper wall of the support ribs has an arc-shaped structure, and multiple support rings are provided on the upper wall of the support ribs. A filter cover with a raised arc-shaped structure is provided on the support rings, and multiple screening holes are provided on the filter cover.

[0006] Furthermore, multiple slots are provided on the upper wall of the support rib, and the support ring is located in the slots so that the lower wall of the filter cover is tightly attached to the upper wall of the support rib.

[0007] Furthermore, multiple holes are provided on the support ribs.

[0008] Furthermore, a pressure ring is installed on the fixing ring by screws, and the lower wall of the pressure ring abuts against the upper wall of the filter cover.

[0009] Furthermore, a horizontal plate spans the upper end of the ring, and a pair of connecting shafts are rotatably mounted at both ends of the horizontal plate. Rollers are mounted at the lower ends of the connecting shafts, and the outer circumferences of the rollers are tangent to the inner and outer circumferences of the ring, respectively. A limit nut is threadedly connected to the upper end of the connecting shaft. The limit nut is located on the upper side of the horizontal plate. A scraper is welded to the lower wall of the horizontal plate, and a concave arc groove is opened at the lower end of the scraper. The lower wall of the concave arc groove is tangent to the upper wall of the filter cover.

[0010] Furthermore, a gripping recess is welded onto the horizontal plate.

[0011] Furthermore, each end of the scraper is bent into an end scraper, which is arranged symmetrically on an axis and there is an included angle between the end scrapers and the scraper.

[0012] The advantages of the above technical solution are:

[0013] The present invention firstly uses a filter cover with a raised arc-shaped structure design. This design facilitates the movement of the filtered particles towards the edge of the filter cover, thereby facilitating the discharge of these filtered particles.

[0014] Secondly, the present invention uses support ribs and support rings to shape the filter cover, thereby ensuring that the filter cover has a convex arc-shaped structure. Furthermore, this design allows the use of filter covers made of flexible materials.

[0015] This invention facilitates the removal of particles from the filter cover using a scraper and an end scraper, and its easy-to-disassemble connection structure design makes it convenient for quickly cleaning the filter cover. Attached Figure Description

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will provide a further detailed description of this utility model in conjunction with the accompanying drawings.

[0017] Figure 1 A three-dimensional structure of one embodiment is shown. Figure 1 .

[0018] Figure 2 A three-dimensional structure of one embodiment is shown. Figure 2 .

[0019] Figure 3 A three-dimensional structural diagram of the scraper is shown.

[0020] Figure 4 The three-dimensional structure of the filter cover is shown. Figure 1 .

[0021] Figure 5 The three-dimensional structure of the filter cover is shown. Figure 2 .

[0022] Figure 6 A structural diagram of an existing screening basket is shown. Detailed Implementation

[0023] like Figures 1-5As shown, a screening basket includes a ring 10, a discharge pipe 11 welded to the ring 10, a discharge port 12 on the outer periphery of the ring 10, the discharge port 12 being connected to the discharge pipe 11, a mounting ring welded to the lower end of the ring 10, a fixing ring 3 being mounted on the mounting ring by bolts 30, a plurality of support ribs 31 welded to the inner periphery of the fixing ring 3, a plurality of holes 37 being opened on the support ribs 31, the upper wall of the support ribs 31 having an arc-shaped structure, a plurality of support rings 34 being provided on the upper wall of the support ribs 31, a filter cover 35 having a convex arc-shaped structure being covered on the support rings 34, a plurality of screening holes being opened on the filter cover 35, in some embodiments, a plurality of slots 33 being opened on the upper wall of the support ribs 31, the support rings 34 being located in the slots 33 so that the lower wall of the filter cover 35 is tightly attached to the upper wall of the support ribs 31, a pressure ring 36 being mounted on the fixing ring 3 by screws, the lower wall of the pressure ring 36 abutting against the upper wall of the filter cover 35.

[0024] In this embodiment, the filter cover 35 is made of flexible material. When fixed, it is laid on the support rib 31 and the support ring 34, and its edge is fixed to the fixing ring 3 by the pressure ring 36.

[0025] In this embodiment, the support ribs 31 and the support rings 34 can be made of high-strength polymer materials to reduce the weight of the screening basket.

[0026] In this embodiment, the screened particles will roll downwards along the arc of the filter cover 35, thus facilitating the movement of these filtered particles into the discharge pipe 11 during the screening process.

[0027] In some embodiments, a horizontal plate 4 spans the upper end of the ring 10, and a holding recess 40 is welded onto the horizontal plate 4. A pair of connecting shafts 42 are rotatably provided at both ends of the horizontal plate 4. A roller 41 is provided at the lower end of the connecting shaft 42. The outer circumference of the roller 41 is tangent to the inner and outer circumferences of the ring 10, respectively. A limit nut 43 is threadedly connected to the upper end of the connecting shaft 42. The limit nut 43 is located on the upper side of the horizontal plate 4. A scraper 44 is welded to the lower wall of the horizontal plate 4. A concave arc groove 46 is formed at the lower end of the scraper 44. The lower wall of the concave arc groove 46 is tangent to the upper wall of the filter cover 35. End scrapers 45 are bent at both ends of the scraper 44. The end scrapers 45 are arranged axially symmetrically, and there is an included angle between the end scrapers 45 and the scraper 44.

[0028] In this embodiment, when scraping particles, each pair of rollers 41 is inserted into the ring 10 so that the outer circumference of the rollers 41 is tangent to the inner and outer circumferences of the ring 10, respectively. Then, the scraper 44 is rotated by holding the concave part 40 so that the particles on the filter cover 35 are scraped off by the scraper 44. The end scraper 45 plays the role of guiding the flow and scraping the inner wall of the ring 10. In this way, the scraping operation can be completed quickly.

[0029] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A screening basket, comprising a ring (10), a discharge pipe (11) welded onto the ring (10), and a discharge port (12) formed on the outer periphery of the ring (10), the discharge port (12) being connected to the discharge pipe (11), characterized in that, A mounting ring is welded to the lower end of the ring (10), and a fixing ring (3) is installed on the mounting ring by bolts (30). Multiple support ribs (31) are welded to the inner circumference of the fixing ring (3). The upper wall of the support rib (31) has an arc-shaped structure. Multiple support rings (34) are provided on the upper wall of the support rib (31). A filter cover (35) with a raised arc-shaped structure is provided on the support ring (34). Multiple screening holes are opened on the filter cover (35).

2. The screening basket according to claim 1, characterized in that, Multiple slots (33) are provided on the upper wall of the support rib (31), and the support ring (34) is located in the slots (33) so that the lower wall of the filter cover (35) is in close contact with the upper wall of the support rib (31).

3. The screening basket according to claim 1, characterized in that, Multiple holes (37) are provided on the support rib (31).

4. The screening basket according to claim 1, characterized in that, A pressure ring (36) is installed on the fixing ring (3) by screws, and the lower wall of the pressure ring (36) abuts against the upper wall of the filter cover (35).

5. The screening basket according to claim 1, characterized in that, A horizontal plate (4) is provided across the upper end of the ring (10). A pair of connecting shafts (42) are rotatably provided at both ends of the horizontal plate (4). A roller (41) is provided at the lower end of the connecting shaft (42). The outer circumference of the roller (41) is tangent to the inner and outer circumferences of the ring (10). A limit nut (43) is connected to the upper end of the connecting shaft (42) by a thread. The limit nut (43) is located on the upper side of the horizontal plate (4). A scraper (44) is welded to the lower wall of the horizontal plate (4). A concave arc groove (46) is provided at the lower end of the scraper (44). The lower wall of the concave arc groove (46) is tangent to the upper wall of the filter cover (35).

6. The screening basket according to claim 5, characterized in that, A holding recess (40) is welded onto the horizontal plate (4).

7. The screening basket according to claim 5, characterized in that, The scraper (44) has end scrapers (45) bent at both ends. The end scrapers (45) are arranged symmetrically on the axis and there is an angle between the end scrapers (45) and the scraper (44).

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