Raw material screening device for oseltamivir intermediate production

Abstract

The utility model discloses a raw material screening device for oseltamivir intermediate production, which belongs to the technical field of medicine processing, and comprises a screening shell, two support frames, a transmission component, a screening component, a motor and a cleaning component, a first discharge port and a third discharge port are formed in one side of the shell, and a second discharge port and a fourth discharge port are formed in the front surface of the shell; according to the utility model, raw materials are poured into the feed port, large raw material particles slide into the first discharge port along the rotating belt, raw materials filtered by the second sieve pores slide into the second discharge port, and smaller raw material particles pass through the third sieve pores, move to the rotating belt at the bottom and slide into the fourth discharge port; according to the device, various raw material particles with different sizes can be screened out only by pouring the raw materials into the feeding opening, operation is easy, and the applicability of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medicine processing, concretely relates to a raw material screening device for oseltamivir intermediate production. BACKGROUND

[0002] The raw material screening device for oseltamivir intermediate production is a device for screening raw materials for oseltamivir intermediate production. In the synthesis process of oseltamivir intermediate, the particle size and other physical properties of the raw materials can affect the efficiency of the reaction and the quality of the product. The screening device can classify and screen the raw materials according to particle size and other standards.

[0003] However, the current screening device has a single level of particle size when screening raw materials, and multiple screening devices or multiple screening screens may be required when multiple levels need to be screened, which is inconvenient to operate. The screening device with multiple screening screens is difficult to clean, so a raw material screening device for oseltamivir intermediate production is needed to solve the above problems. SUMMARY

[0004] The utility model aims at providing a raw material screening device for oseltamivir intermediate production to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a raw material screening device for oseltamivir intermediate production, including screening shell, two support frames, transmission assembly, screening assembly, motor and cleaning assembly, the screening shell includes a shell, the top of the shell is provided with a feeding port, one side of the shell is provided with a first discharge port and a third discharge port, the front of the shell is provided with a second discharge port and a fourth discharge port;

[0006] The transmission assembly includes a plurality of rotating rollers, which are rotatably connected in the two support frames. One of the rotating rollers is connected to the output shaft of the motor, and the motor is connected to the back of the shell.

[0007] The screening assembly includes a rotating belt, which is drivingly connected outside the plurality of rotating rollers. The rotating belt has a plurality of first screen holes, a plurality of second screen holes and a plurality of third screen holes from top to bottom.

[0008] The cleaning assembly includes two sliding rods, which are slidingly connected to the other side of the shell. The first section of the two sliding rods is connected to the connecting plate, and the other end of the two sliding rods is connected to the cleaning brush. The cleaning brush is overlapped with the rotating belt. The sliding rod is provided with a spring. The two ends of the spring are connected to the cleaning brush and the shell respectively.

[0009] As a preferred scheme, the other side of the shell is provided with an access panel, which is arranged below the cleaning assembly.

[0010] As a preferred embodiment, both the first discharge port and the third discharge port are inclined downwards, and the position of the first discharge port corresponds to the position of several first screen holes.

[0011] As a preferred embodiment, the position of the second discharge port corresponds to the position of several second screen holes.

[0012] As a preferred embodiment, the positions of the third and fourth discharge ports correspond to the positions of several third screen holes, and both the third and fourth discharge ports are inclined downwards.

[0013] As a preferred embodiment, the second discharge port is located between the first discharge port and the third discharge port, the third discharge port is located between the second discharge port and the fourth discharge port, the third discharge port is located directly below the first discharge port, and the fourth discharge port is located directly below the second discharge port.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention involves pouring raw materials into the feed inlet. Larger raw material particles slide down the rotating belt into the first discharge port, while the raw materials filtered through the second screen slide into the second discharge port. Smaller raw material particles pass through the third screen and move onto the rotating belt at the bottom, then slide into the fourth discharge port. The raw materials filtered through the third screen slide into the third discharge port. This device can screen out various sizes of raw material particles simply by pouring the raw materials into the feed inlet. It is easy to operate and improves the applicability of the device.

[0016] This invention, by incorporating a rotating belt, a cleaning brush, and a spring, allows the cleaning brush to engage with the rotating belt under the elastic force of the spring, thus cleaning the raw materials adhering to the surface of the rotating belt and the raw material particles clogging the first, second, and third sieve holes. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention from the front view;

[0018] Figure 2 This is a side-view perspective sectional structural diagram of the present invention;

[0019] Figure 3 This is a frontal three-dimensional cross-sectional structural diagram of the present invention;

[0020] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A;

[0021] Figure 5 This is a partial rear-view three-dimensional structural schematic diagram of the present invention.

[0022] In the diagram: 1. Screening shell; 11. Outer shell; 12. Feed inlet; 13. First discharge port; 14. Second discharge port; 15. Third discharge port; 16. Fourth discharge port; 2. Support frame; 3. Transmission assembly; 31. Rotating roller; 4. Screening assembly; 41. Rotating belt; 42. First screen hole; 43. Second screen hole; 44. Third screen hole; 5. Motor; 6. Inspection plate; 7. Cleaning assembly; 71. Slide bar; 72. Connecting plate; 73. Spring; 74. Cleaning brush. Detailed Implementation

[0023] The present invention will be further described below with reference to the embodiments.

[0024] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0025] Please see Figures 1-5 This utility model provides a raw material screening device for the production of oseltamivir intermediates, including a screening shell 1, two support frames 2, a transmission assembly 3, a screening assembly 4, a motor 5 and a cleaning assembly 7. The screening shell 1 includes an outer shell 11, with a feed inlet 12 at the top of the outer shell 11, a first discharge port 13 and a third discharge port 15 on one side of the outer shell 11, and a second discharge port 14 and a fourth discharge port 16 on the front of the outer shell 11.

[0026] The transmission assembly includes several rotating rollers 31, which are rotatably connected to two support frames 2. By setting the support frames 2, the two support frames 2 can limit and fix the several rotating rollers 31 inside the outer shell 11.

[0027] One of the rotating rollers 31 is connected to the output shaft of the motor 5, which is connected to the back of the housing 11. By setting the motor 5, the working motor 5 can drive one of the rotating rollers 31 to rotate.

[0028] The screening assembly 4 includes a rotating belt 41, which is connected to a plurality of rotating rollers 31. The rotating belt 41 has a plurality of first screen holes 42, a plurality of second screen holes 43 and a plurality of third screen holes 44 respectively from top to bottom.

[0029] The cleaning assembly 7 includes two slide rods 71, which are slidably connected to the other side of the housing 11. The first section of the two slide rods 71 ​​is connected to the connecting plate 72, and the other end of the two slide rods 71 ​​is connected to the cleaning brush 74. The cleaning brush 74 overlaps with the rotating belt 41. A spring 73 is sleeved on the slide rod 71. The two ends of the spring 73 are respectively connected to the cleaning brush 74 and the housing 11. By setting the slide rod 71 and the housing 11, since the slide rod 71 is slidably connected inside the housing 11, the housing 11 can limit the slide rod 71, so that the slide rod 71 will not shake when it moves. The cleaning brush 74 connected to the slide rod 71 can move smoothly along its axial direction.

[0030] On the other side of the outer casing 11, there is a maintenance plate 6, which is located below the cleaning component 7. The first discharge port 13 and the third discharge port 15 are both inclined downwards. The first discharge port 13 corresponds to the position of several first screen holes 42. The position of the second discharge port 14 corresponds to the position of several second screen holes 43. The positions of the third discharge port 15 and the fourth discharge port 16 correspond to the position of several third screen holes 44. The third discharge port 15 and the fourth discharge port 16 are both inclined downwards. The second discharge port 14 is located between the first discharge port 13 and the third discharge port 15. By setting the first discharge port 13, the raw material particles falling into the first discharge port 13 can roll off under their own gravity.

[0031] The third discharge port 15 is located between the second discharge port 14 and the fourth discharge port 16. By setting the second discharge port 14, the raw material particles falling into the second discharge port 14 can roll off under their own gravity.

[0032] The third discharge port 15 is located directly below the first discharge port 13. By setting the third discharge port 15, the raw material particles falling into the third discharge port 15 can roll off under their own gravity.

[0033] The fourth discharge port 16 is located directly below the second discharge port 14. By setting the fourth discharge port 16, the raw material particles falling into the fourth discharge port 16 can roll off under their own gravity.

[0034] The working principle and usage process of this utility model are as follows: When it is necessary to screen the material, the raw material is first poured into the feed inlet 12. The raw material moves to several first screen holes 42 on the rotating belt 41. Small raw materials pass through the first screen holes 42 and move to the second screen holes 43. Large raw material particles slide down the rotating belt 41 into the first discharge port 13.

[0035] When the raw material falls onto the second screen hole 43, the smaller raw material particles pass through the second screen hole 43 and move to the third screen hole 44. The raw material filtered by the second screen hole 43 slides into the second discharge port 14.

[0036] When the raw material falls onto the third screen hole 44, smaller raw material particles pass through the third screen hole 44 and move onto the rotating belt 41 at the bottom, and slide into the fourth discharge port 16. The raw material filtered by the third screen hole 44 slides into the third discharge port 15.

[0037] This device can screen out various sizes of raw material particles simply by pouring the raw material into the feed inlet 12, making it easy to operate;

[0038] When it is necessary to clean the rotating belt 41, the control motor 5 is activated. The activated motor 5 drives the rotating belt 41 to rotate clockwise outside several rotating rollers 31 through one of the rotating rollers 31. Because the cleaning brush 74 is engaged with the rotating belt 41 under the elastic force of the spring 73, the cleaning brush 74 can clean the raw materials attached to the surface of the rotating belt 41 and the raw material particles blocking the first screen hole 42, the second screen hole 43 and the third screen hole 44. The inspection door is opened, and then the raw material particles that fall around it are cleaned.

[0039] 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. A raw material screening device for the production of oseltamivir intermediates, comprising a screening shell (1), two support frames (2), a transmission assembly (3), a screening assembly (4), a motor (5), and a cleaning assembly (7), characterized in that: The screening shell (1) includes an outer shell (11), the top of the outer shell (11) is provided with a feed inlet (12), the side of the outer shell (11) is provided with a first discharge port (13) and a third discharge port (15), and the front of the outer shell (11) is provided with a second discharge port (14) and a fourth discharge port (16). The transmission assembly includes several rotating rollers (31), which are rotatably connected to two support frames (2). One of the rotating rollers (31) is connected to the output shaft of a motor (5), which is connected to the back of the housing (11). The screening assembly (4) includes a rotating belt (41), which is connected to a plurality of rotating rollers (31). The rotating belt (41) is provided with a plurality of first screen holes (42), a plurality of second screen holes (43) and a plurality of third screen holes (44) from top to bottom. The cleaning assembly (7) includes two slide rods (71), which are slidably connected to the other side of the housing (11). The first section of the two slide rods (71) is connected to the connecting plate (72), and the other end of the two slide rods (71) is connected to the cleaning brush (74). The cleaning brush (74) overlaps with the rotating belt (41). The slide rods (71) are fitted with springs (73), and the two ends of the springs (73) are respectively connected to the cleaning brush (74) and the housing (11).

2. The raw material screening device for the production of oseltamivir intermediates according to claim 1, characterized in that: The other side of the outer casing (11) is provided with a maintenance plate (6), which is located below the cleaning assembly (7).

3. The raw material screening device for the production of oseltamivir intermediates according to claim 1, characterized in that: The first discharge port (13) and the third discharge port (15) are both inclined downwards, and the first discharge port (13) corresponds to the position of several first screen holes (42).

4. The raw material screening device for the production of oseltamivir intermediates according to claim 1, characterized in that: The position of the second discharge port (14) corresponds to the position of several second screen holes (43).

5. The raw material screening device for the production of oseltamivir intermediates according to claim 1, characterized in that: The positions of the third discharge port (15) and the fourth discharge port (16) correspond to the positions of several third screen holes (44), and the third discharge port (15) and the fourth discharge port (16) are both set to be inclined downward.

6. The raw material screening device for the production of oseltamivir intermediates according to claim 1, characterized in that: The second discharge port (14) is located between the first discharge port (13) and the third discharge port (15). The third discharge port (15) is located between the second discharge port (14) and the fourth discharge port (16). The third discharge port (15) is located directly below the first discharge port (13), and the fourth discharge port (16) is located directly below the second discharge port (14).

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