Drying equipment for preparing medical intermediates

Abstract

The utility model provides drying equipment for preparing medical intermediates, which relates to the technical field of medical intermediate processing and comprises a drying box and a fixing frame fixedly connected to the middle of the outer side wall of the drying box. A crushing cavity, a stirring cavity and a collecting cavity are sequentially formed in the drying box from top to bottom, a discharging pipe is arranged at the bottom of the outer side wall of one face of the drying box, and a treatment mechanism capable of treating medical intermediates in the crushing cavity, the stirring cavity and the collecting cavity is arranged at the outer bottom of the drying box and located on the inner side of the fixing frame. Hot air is conveyed into the hollow rotating rod along the first pipeline and sequentially shunted into the hollow scraping plate, the hollow rotating plate, the hollow crushing strip and the hollow interlayer to heat the hollow scraping plate, the hollow rotating plate, the hollow crushing strip and the hollow interlayer, so that the uniform contact area of the hot air and the hot air is increased, and the medical intermediate is effectively ensured to be always in a dry processing environment; and therefore, the drying uniformity of the medical intermediates is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of pharmaceutical intermediate processing, in particular to a drying device for preparing pharmaceutical intermediates. Background Art

[0002] Pharmaceutical intermediates are actually some chemical raw materials or chemical products used in the process of drug synthesis. In the preparation process of pharmaceutical intermediates, usually some herbal extracts are first made, and then diluted, distilled, crystallized, ground and other processes are carried out to make solid pharmaceutical intermediates. After crystallization, the crystal solid is relatively moist. In order to ensure that the pharmaceutical intermediate is relatively dry, it is usually necessary to dry it.

[0003] At present, most general drying equipment adopts a method of drying with long-axis blades in combination with hot air. For example, Chinese patent publication number CN219531476U discloses a standby drying equipment for pharmaceutical intermediates, including a drying cylinder. In the above-mentioned public document, the water in the dispersed pharmaceutical intermediate raw materials is dried for the first time by hot air, and then enters the interior of the drying box through the discharge pipe, and the six air outlets are connected to the heater, and the outflowing pharmaceutical intermediate raw materials are dried for the second time, thereby improving the drying effect. However, when the patent is used, due to the small contact area between the hot air and the pharmaceutical intermediate, the pharmaceutical intermediate cannot be completely dried, which easily causes the situation of insufficient drying, thereby making the drying efficiency slow, affecting the working efficiency of the processing. To this end, those skilled in the art provide a drying equipment for preparing pharmaceutical intermediates to solve the problems raised in the above-mentioned background technology. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a drying device for preparing pharmaceutical intermediates, which can effectively solve the problem in the background technology that the pharmaceutical intermediates cannot be completely dried due to the small contact area between hot air and the pharmaceutical intermediates, which easily leads to insufficient drying, resulting in slow drying efficiency and affecting the processing efficiency.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a drying device for preparing pharmaceutical intermediates, comprising a drying box and a fixed frame fixedly connected to the middle position of the outer wall of the drying box, a feeding pipe is connected through one end of the outer top of the drying box, a crushing chamber, a stirring chamber, and a collecting chamber are arranged in sequence from top to bottom inside the drying box, a feeding pipe is opened at the bottom of one side of the outer wall of the drying box, and one end of the feeding pipe extends to the inside of the collecting chamber, and a processing mechanism capable of processing the pharmaceutical intermediates in the crushing chamber, the stirring chamber, and the collecting chamber is arranged at the outer bottom of the drying box and located on the inner side of the fixed frame;

[0006] A hot air blower is installed on the inner bottom surface of the fixing frame, and the air outlet end of the hot air blower is connected to the rotating end of the processing mechanism and the interior of the drying box through the first pipe and the second pipe respectively.

[0007] As a further technical solution of the utility model, the processing mechanism includes a hollow rotating rod rotatably connected to the center position of the outer bottom of the drying box, one end of the hollow rotating rod extends to the interior of the drying box, and passes through the collecting chamber, the stirring chamber and the inner top of the crushing chamber in sequence to be rotatably connected, and a first gear and a rotating joint are respectively installed on the outer surface of the other end of the hollow rotating rod, and one end of the rotating joint is interconnected with the first pipe.

[0008] As a further technical solution of the utility model, the outer bottom of the drying box is connected to a driving motor via a connecting rod, and a second gear is installed on the outer surface of the connecting rod, and the second gear is meshingly connected with the first gear.

[0009] As a further technical solution of the utility model, the outer surface of the hollow rotating rod and the interior of the crushing chamber are evenly spaced and cross-connected with through-type hollow crushing bars, and the inner bottom surface of the crushing chamber is provided with through-type arc grooves evenly spaced around its center.

[0010] As a further technical solution of the utility model, the outer surface of the hollow rotating rod and the inner surface of the stirring chamber are arranged with through hollow rotating plates at equal intervals, and the inner bottom surface of the stirring chamber is provided with air holes that communicate with the collecting chamber;

[0011] A through-type hollow scraper is symmetrically installed on the outer surface of the hollow rotating rod and on the inner bottom surface of the collecting chamber.

[0012] As a further technical solution of the utility model, a hollow interlayer is provided between the outer wall and the inner wall of the drying box, and an air outlet slot is provided at the bottom of one of the outer walls of the drying box.

[0013] The utility model provides a drying device for preparing pharmaceutical intermediates, which has the following beneficial effects compared with the prior art:

[0014] 1. A drying device for preparing pharmaceutical intermediates. When in use, the hot air is transported to the inside of the hollow rotating rod along the first pipeline by a hot air blower, and is sequentially diverted to the inside of the hollow scraper, the hollow rotating plate, the hollow crushing bar and the hollow interlayer and heated. Then, a driving motor is used as a power source to make the hollow rotating rod drive the hollow scraper, the hollow rotating plate and the hollow crushing bar to rotate in turn, thereby performing layered flipping and stirring on the pharmaceutical intermediates, which not only increases the uniform contact area with the hot air, but also effectively ensures that the pharmaceutical intermediates are always in a dry processing environment, thereby ensuring the uniformity of drying the pharmaceutical intermediates and improving the drying effect.

[0015] 2. A drying device for preparing pharmaceutical intermediates, which adopts a hollow sandwich design to prevent hot air from contacting the diameter of the pharmaceutical intermediates, thereby avoiding splashing of the pharmaceutical intermediates during drying, affecting the drying effect and causing waste. At the same time, after the material is unloaded, the valve on the second pipeline can be opened to allow hot air to pass through the second pipeline to blow away and remove the remaining and adhered pharmaceutical intermediates in the crushing chamber, the stirring chamber, and the collecting chamber in turn, thereby avoiding waste and the trouble of cleaning in the later stage, and further improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of a drying equipment for preparing pharmaceutical intermediates;

[0017] Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of a drying device for preparing pharmaceutical intermediates;

[0018] Figure 3 The present invention is a schematic diagram of the structure of a drying equipment processing mechanism for preparing pharmaceutical intermediates.

[0019] In the figure: 1. drying box; 2. fixing frame; 3. feeding pipe; 4. discharging pipe; 5. crushing chamber; 6. stirring chamber; 7. collecting chamber; 8. first pipeline; 9. driving motor; 10. hollow rotating rod; 11. second pipeline; 12. first gear; 13. second gear; 14. connecting rod; 15. rotating joint; 16. hollow crushing bar; 17. hollow rotating plate; 18. hollow scraper; 19. arc notch; 20. air vent; 21. hollow interlayer; 22. air outlet slot. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3As shown, a drying device for preparing pharmaceutical intermediates comprises a drying box 1 and a fixed frame 2 fixedly connected to the middle position of the outer wall of the drying box 1, one end of the outer top of the drying box 1 is connected with a feeding pipe 3, and the interior of the drying box 1 is provided with a crushing chamber 5, a stirring chamber 6, and a collecting chamber 7 from top to bottom, a feeding pipe 4 is provided at the bottom of one side of the outer wall of the drying box 1, and one end of the feeding pipe 4 extends to the inside of the collecting chamber 7, and a processing mechanism capable of processing the pharmaceutical intermediates in the crushing chamber 5, the stirring chamber 6, and the collecting chamber 7 is provided at the outer bottom of the drying box 1 and located on the inner side of the fixed frame 2, and the processing mechanism comprises a hollow rotating rod 10 rotatably connected to the center position of the outer bottom of the drying box 1, one end of the hollow rotating rod 10 extends to the interior of the drying box 1, and passes through the collecting chamber 7 and the stirring chamber 6 in sequence and is rotatably connected to the inner top of the crushing chamber 5, and the hollow rotating rod 10 A first gear 12 and a rotary joint 15 are respectively installed on the outer surface of the other end, one end of the rotary joint 15 is interconnected with the first pipe 8, the outer bottom of the drying box 1 is connected to the driving motor 9 through a connecting rod 14, and a second gear 13 is installed on the outer surface of the connecting rod 14, and the second gear 13 is meshingly connected with the first gear 12. The outer surface of the hollow rotating rod 10 and the interior of the crushing chamber 5 are evenly spaced and cross-connected with through-type hollow crushing bars 16, and the inner bottom surface of the crushing chamber 5 is provided with through-type arc notches 19 at equal intervals around the center of the circle, the outer surface of the hollow rotating rod 10 and the interior of the stirring chamber 6 are evenly spaced and arranged with through-type hollow rotating plates 17, and the inner bottom surface of the stirring chamber 6 is provided with air holes 20 that communicate with the collecting chamber 7, and the outer surface of the hollow rotating rod 10 and the inner bottom surface of the collecting chamber 7 are symmetrically installed with through-type hollow scrapers 18. When in use, the pharmaceutical intermediates to be dried are transported to the crushing chamber 5 along the feed pipe 3, and then the driving motor 9 is used as a driving source to drive the connecting rod 14 to drive the second gear 13 to rotate, and under the meshing characteristics of the gears, the first gear 12 is driven to rotate, so that the hollow crushing bars 16 on the hollow rotating rod 10 break up the pharmaceutical intermediates, and flow into the stirring chamber 6 through the arc notch 19, and then the pharmaceutical intermediates are continuously turned and stirred by the hollow rotating plate 17 so that they can be evenly dried, which is beneficial to improve their drying effect, and flow into the collecting chamber 7 along the air vents 20, and with the assistance of the hollow scraper 18, the dried pharmaceutical intermediates are pushed out of the collecting chamber 7 along the feed pipe 4 for subsequent installation, and at the same time, with the assistance of the fixed frame 2, the drying box 1 is fixedly supported.

[0022] A hot air blower is installed on the inner bottom surface of the fixed frame 2, and the air outlet of the hot air blower is connected to the rotating end of the processing mechanism and the inside of the drying box 1 through the first pipe 8 and the second pipe 11 respectively. A hollow interlayer 21 is provided between the outer wall and the inner wall of the drying box 1, and an air outlet slot 22 is provided at the bottom of one of the outer walls of the drying box 1. The inhaled air is heated by the hot air blower to form hot air, and then transported to the interlayer of the drying box 1 along the first pipe 8, and discharged through the air outlet slot 22, and then the drying box 1 is heated, so that the pharmaceutical intermediate can always be in a dry environment, ensuring its drying uniformity.

[0023] The working principle of the utility model is as follows: when performing a drying process, the hot air blower is first started, and the hot air formed by it is transported to the hollow rotating rod 10 through the air outlet end along the first pipe 8 and the rotating joint 15, and is diverted to the hollow scraper 18, the hollow rotating plate 17, the hollow crushing bar 16 and the hollow interlayer 21, and is discharged through the air outlet slot 22, thereby heating it to form a dry processing environment.

[0024] At the same time, the pharmaceutical intermediates that need to be dried are transported to the crushing chamber 5 along the feed pipe 3, and the drive motor 9 is started to drive the second gear 13 to drive the first gear 12 to rotate, and then the hollow crushing bars 16 on the hollow rotating rod 10 are rotated and dispersed through the rotating joint 15, while ensuring that the first pipeline can stably and continuously transport hot air, and perform the initial drying during the dispersion process, and then flow into the stirring chamber 6 along the arc groove 19, and continuously stir it through the hollow rotating plate 17, and then perform a secondary drying treatment, thereby further improving its drying efficiency.

[0025] At the same time, the secondary dried pharmaceutical intermediate can be drained into the collection chamber 7 through the air holes 20, and finally dried and stirred along the inner bottom surface by the hollow scraper 18, and pushed out of the collection chamber 7 along the discharge pipe 4 for collection for subsequent processing and production. The layered flip stirring treatment method not only increases the uniform contact area with the hot air, but also effectively ensures that the pharmaceutical intermediate is always in a dry processing environment. At the same time, the hollow interlayer 21 design can prevent the hot air from directly contacting the pharmaceutical intermediate, avoiding the pharmaceutical intermediate from being blown around during drying, affecting the drying effect and causing waste.

[0026] After the unloading is completed, the valve on the second pipe 11 can be opened, and hot air can be blown through the second pipe 11 to blow away and remove the remaining and adhered pharmaceutical intermediates in the crushing chamber 5, the stirring chamber 6, and the collecting chamber 7 in turn, avoiding waste and the trouble of cleaning in the later stage, and further improving the applicability of the device.

[0027] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A drying device for preparing pharmaceutical intermediates, characterized in that: The invention comprises a drying box (1) and a fixing frame (2) fixedly connected to the middle position of the outer wall of the drying box (1); a feeding pipe (3) is connected through one end of the outer top of the drying box (1); a crushing chamber (5), a stirring chamber (6) and a collecting chamber (7) are arranged in sequence from top to bottom inside the drying box (1); a feeding pipe (4) is provided at the bottom of one outer wall of the drying box (1), and one end of the feeding pipe (4) extends to the inside of the collecting chamber (7); a processing mechanism capable of processing the pharmaceutical intermediates inside the crushing chamber (5), the stirring chamber (6) and the collecting chamber (7) is provided at the outer bottom of the drying box (1) and located on the inner side of the fixing frame (2); A hot air blower is installed on the inner bottom surface of the fixed frame (2), and the air outlet end of the hot air blower is connected to the rotating end of the processing mechanism and the interior of the drying box (1) through a first pipe (8) and a second pipe (11) respectively.

2. A drying device for preparing pharmaceutical intermediates according to claim 1, characterized in that: The processing mechanism comprises a hollow rotating rod (10) rotatably connected to the center position of the outer bottom of the drying box (1), one end of the hollow rotating rod (10) extends to the interior of the drying box (1), and passes through the collecting chamber (7), the stirring chamber (6) and the inner top of the crushing chamber (5) in sequence, and is rotatably connected, and a first gear (12) and a rotating joint (15) are respectively installed on the outer surface of the other end of the hollow rotating rod (10), and one end of the rotating joint (15) is mutually connected with the first pipe (8).

3. A drying device for preparing a pharmaceutical intermediate according to claim 2, characterized in that: The outer bottom of the drying box (1) is connected to a driving motor (9) via a connecting rod (14); a second gear (13) is mounted on the outer surface of the connecting rod (14); and the second gear (13) is meshingly connected to the first gear (12).

4. A drying device for preparing a pharmaceutical intermediate according to claim 2, characterized in that: The outer surface of the hollow rotating rod (10) and the interior of the crushing chamber (5) are provided with through-type hollow crushing bars (16) at equal intervals, and the inner bottom surface of the crushing chamber (5) is provided with through-type arc notches (19) at equal intervals around the center of the circle.

5. A drying device for preparing a pharmaceutical intermediate according to claim 2, characterized in that: Hollow rotating plates (17) are arranged at equal intervals on the outer surface of the hollow rotating rod (10) and inside the stirring chamber (6); and air holes (20) for communicating with the collecting chamber (7) are provided on the inner bottom surface of the stirring chamber (6); A through-type hollow scraper (18) is symmetrically installed on the outer surface of the hollow rotating rod (10) and on the inner bottom surface of the collecting chamber (7).

6. A drying device for preparing a pharmaceutical intermediate according to claim 1, characterized in that: A hollow interlayer (21) is provided between the outer wall and the inner wall of the drying box (1), and an air outlet slot (22) is provided at the bottom of one of the outer walls of the drying box (1).

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