Medical intermediate screening device
By designing the mixing chamber and screening box of the pharmaceutical intermediate screening device, and combining the mixing and screening components, uniform drying and screening of pharmaceutical intermediates were achieved, solving the problems of complex structure and low efficiency of existing devices, and improving production efficiency and screening effect.
Patent Information
- Application Number
- CN202520142146.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-01-21
AI Technical Summary
Existing pharmaceutical intermediate screening devices are complex in structure, have low production efficiency, occupy a large area, and produce uneven particle sizes, which leads to problems in the synthesis of chemical raw materials and makes it impossible to achieve material recycling and screening.
A pharmaceutical intermediate screening device was designed, comprising a mixing chamber, a screening box, and a stirring element. The device uses an inlet pipe and an outlet pipe for uniform heating and drying, and utilizes the stirring element and screening element to achieve uniform particle size screening. The device employs a telescopic cylinder, a motor-driven opening and closing mechanism, and an eccentric wheel for convenient operation.
It enables uniform drying and screening of pharmaceutical intermediates, improves production efficiency, simplifies operation procedures, saves manpower and resources, and avoids the problem of uneven screening.
Smart Images
Figure CN223819098U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of pharmaceutical intermediates production, especially a pharmaceutical intermediate screening device. BACKGROUND
[0002] Pharmaceutical intermediates are actually some chemical raw materials or chemical products used in the synthesis process of medicines. Such chemical products do not require a production license for medicines and can be produced in ordinary chemical plants. As long as they reach a certain level, they can be used for the synthesis of medicines.
[0003] However, during the preliminary processing of pharmaceutical intermediates, the particles of the chemical raw materials need to be screened, and the chemical raw materials with particle sizes meeting the manufacturing requirements are retained for use. Pharmaceutical intermediates are a class of chemical substances used to synthesize pharmaceutical products. After purification, the pharmaceutical intermediates contain impurities and moisture, which need to be further dried and screened. However, the existing screening devices have complex structures, low production efficiency, and large floor area, and are difficult to clean after long-term use. During the screening process of the chemical raw material particles, the following problems exist: the particle size of the screened particles is not uniform, which leads to problems in the use of the synthesized chemical raw materials, and the material cannot be recycled and screened. SUMMARY
[0004] Therefore, the utility model aims to provide a pharmaceutical intermediate screening device that can realize drying and screening of pharmaceutical intermediates.
[0005] The utility model adopts the following method: a pharmaceutical intermediate screening device, including screening box, the upper surface of screening box is provided with stirring bin, stirring bin with screening box is connected with a discharge pipe arrangement, the lower end in stirring bin is provided with the opening and closing piece that is used for opening and closing discharge pipe, the upper surface of stirring bin is connected with feeding hopper, stirring bin is provided with stirring piece, the left side of stirring bin is connected with air inlet pipe, the right side of stirring bin is connected with air outlet pipe, screening box is provided with screening piece.
[0006] Further, the opening and closing piece includes a telescopic cylinder, the telescopic cylinder is embedded in the lower end of the right side of the stirring bin, and the telescopic rod of the telescopic cylinder is provided with a first openable and closable plate for opening and closing the discharge pipe.
[0007] Further, the stirring piece includes a rotating shaft, a first motor is embedded in the rear surface of the stirring bin, the output end of the first motor is connected with the rotating shaft, and a U-shaped stirring frame is arranged in the rotating shaft in a circular array with the center of the rotating shaft as the center, a plurality of stirring rods are arranged at equal distances in the horizontal plate of the U-shaped stirring frame, and silica gel scrapers are arranged at the ends of the plurality of stirring rods.
[0008] Further, the screening piece includes a collecting box body with an open upper surface, the collecting box body is arranged on the inner bottom surface of the screening box body, and moving wheels are arranged around the bottom surface of the collecting box body.
[0009] Further, the air inlet pipe and the air outlet pipe are both provided with filter screens.
[0010] The beneficial effects of the present application are that the stirring piece, air inlet pipe and screening piece are added in the device, the stirring and drying of the pharmaceutical intermediates can be realized, the uniform heating and drying of the pharmaceutical intermediates can be realized, the screening of the pharmaceutical intermediates can be realized through the screening piece, and the size of the screened particles is uniform. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is a structural schematic view of the present application.
[0012] Figure 2 It is a structural schematic view of the U-shaped stirring frame. DETAILED DESCRIPTION
[0013] The present application will be further described below with reference to the drawings.
[0014] Please refer to Figure 1 and Figure 2 , the present application provides an embodiment: a pharmaceutical intermediate screening device, including a screening box body 1, the upper surface of the screening box body 1 is provided with a stirring bin 2, the stirring bin 2 and the screening box body 1 are connected and arranged through a discharge pipe 11, the lower end of the stirring bin 2 is provided with an opening and closing piece 3 for opening and closing the discharge pipe 11, the upper surface of the stirring bin 2 is connected with a feeding hopper 21, the stirring bin 2 is provided with a stirring piece 4, the left side of the stirring bin 2 is connected with an air inlet pipe 22, the right side of the stirring bin 2 is connected with an air outlet pipe 23, and the screening box body 1 is provided with a screening piece 5. The pharmaceutical intermediates are conveyed into the stirring bin 2, then hot air is conveyed into the stirring bin 2 through the air inlet pipe 22, and stirring is carried out through the stirring piece 4, so that the uniform drying of the pharmaceutical intermediates can be realized, and the screening operation of the pharmaceutical intermediates can be realized after drying through the screening piece 5.
[0015] Please continue to refer to Figure 1As shown in one embodiment of this utility model, the opening and closing component 3 includes a telescopic cylinder 31. The telescopic cylinder 31 is embedded in the lower right side of the mixing chamber 2. The telescopic rod end of the telescopic cylinder 31 is provided with a first openable plate 32 for opening and closing the discharge pipe 11. This allows the first openable plate 32 to move through the action of the telescopic cylinder 31, thereby realizing the opening and closing of the discharge pipe 11.
[0016] Please continue reading. Figure 1 and Figure 2 As shown in one embodiment of this utility model, the stirring component 4 includes a rotating shaft 41. A first motor (not shown) is embedded in the rear surface of the stirring chamber 2. The output end of the first motor is connected to the rotating shaft 41. A U-shaped stirring rack 42 is arranged in a ring around the center of the rotating shaft 41. Multiple stirring rods 43 are evenly spaced inside the horizontal plate of the U-shaped stirring rack 42. The ends of the multiple stirring rods 43 are provided with silicone scrapers 44. This allows the first motor to drive the rotating shaft 41 to rotate, which in turn drives the U-shaped stirring rack 42 to rotate, thereby enabling the stirring rods 43 to rotate. This facilitates the uniform drying of the pharmaceutical intermediates. Furthermore, the rubber scrapers 44 prevent the pharmaceutical intermediates from adhering to the inner wall of the stirring chamber 2.
[0017] Please continue reading. Figure 1 As shown, in one embodiment of this utility model, the screening component 5 includes a collection box 51 with an open upper surface. The collection box 51 is disposed on the bottom surface of the screening box 1. Moving wheels 52 are disposed around the bottom surface of the collection box 51. A feeding hopper 52 is disposed on the upper surface of the screening box 1. A filter plate 53 is disposed at the outlet of the feeding hopper 52. A second motor (not shown) is embedded at the upper end of the rear surface of the screening box 1. An eccentric wheel 54 for driving the filter plate to vibrate is connected to the output shaft of the second motor. A discharge pipe 55 is connected to the left side of the feeding hopper 52. An outlet (not shown) is opened on the left side of the feeding hopper 52. A second openable plate 56 is hinged inside the outlet. This allows the second motor to drive the eccentric wheel 54 to rotate, thereby achieving the vibration of the filter plate 53, thus realizing the screening function of pharmaceutical intermediates and preventing the filter plate 53 from clogging.
[0018] Please continue reading. Figure 1 As shown in one embodiment of this utility model, both the air inlet pipe 22 and the air outlet pipe 23 are equipped with filter screens 6. This allows external dust to be prevented from entering through the filter screens 6.
[0019] In this utility model, the hinge is a hinge method that is already known to those skilled in the art, and will not be described in detail here.
[0020] The motor and telescopic cylinder in this utility model are both existing technologies, which are already clearly understood by those skilled in the art, and will not be described in detail here.
[0021] The above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall be covered by the present utility model.
Claims
1. A pharmaceutical intermediate screening device, characterized in that: The device includes a screening box, an agitation chamber on the upper surface of the screening box, the agitation chamber being connected to the screening box via a discharge pipe, an opening / closing device for opening and closing the discharge pipe at the lower end of the agitation chamber, a feeding hopper connected to the upper surface of the agitation chamber, an agitator inside the agitation chamber, an air inlet pipe connected to the left side of the agitation chamber, an air outlet pipe connected to the right side of the agitation chamber, and a screening device inside the screening box.
2. The pharmaceutical intermediate screening device according to claim 1, characterized in that: The opening and closing component includes a telescopic cylinder. The telescopic cylinder is embedded in the lower right side of the mixing chamber. The telescopic rod of the telescopic cylinder is provided with a first openable plate for opening and closing the discharge pipe.
3. The pharmaceutical intermediate screening device according to claim 1, characterized in that: The stirring component includes a rotating shaft. A first motor is embedded in the rear surface of the stirring chamber. The output end of the first motor is connected to the rotating shaft. A U-shaped stirring frame is arranged in a ring around the center of the rotating shaft. Multiple stirring rods are arranged at equal intervals in the horizontal plate of the U-shaped stirring frame. A silicone scraper is provided at the end of the multiple stirring rods.
4. The pharmaceutical intermediate screening device according to claim 1, characterized in that: The screening component includes a collection box with an open upper surface. The collection box is located on the bottom surface of the inner surface of the screening box. Casters are provided around the bottom surface of the collection box. A hopper is located on the upper surface of the inner surface of the screening box. A filter plate is provided at the outlet of the hopper. A second motor is embedded at the upper end of the rear surface of the inner surface of the screening box. An eccentric wheel for driving the filter plate to vibrate is connected to the output shaft of the second motor. A discharge pipe is connected to the left side of the hopper. An outlet is opened on the left side of the hopper. A second openable plate is hinged inside the outlet.
5. The pharmaceutical intermediate screening device according to claim 1, characterized in that: Both the air inlet pipe and the air outlet pipe are equipped with filters.