A drying device for raw medicine

Abstract

The utility model provides a raw material medicine's drying device, including the drying jar of the lower end is the cone cylinder, the top of drying jar is detachably provided with the top cover, is provided with the feeding cylinder on the top cover, is provided with the discharge pipe on the bottom of drying jar, is provided with the control valve on the discharge pipe, the mounting panel, the stirring shaft, the stirring blade, the scraper, still vertical sliding is provided with a plurality of vertical poles on the top cover, is provided with the scraper ring for the material that sticks on the inner wall of drying jar vertical department carries out the scraping cleaning on a plurality of vertical poles. According to the raw material medicine's drying device of the utility model, not only can satisfy the basic demand of the drying treatment of raw material medicine, but also can avoid the inner wall rotation scraping treatment of drying structure to the scraping structure all the time, make it only effective work when needing to work, to avoid the invalid wear and tear of scraping structure.

Description

Technical Field

[0001] This utility model belongs to the technical field of ozagrel sodium raw material processing equipment, and specifically relates to a drying device for raw materials. Background Technology

[0002] Ozagrel sodium is a thromboxane synthase inhibitor that can inhibit TXA2 production, thus having anti-platelet aggregation and vasodilatory effects. Animal experiments show that intravenous administration can reduce plasma TXB2 levels and decrease the Keto-PGF12 / TXB2 ratio. It also has an inhibitory effect on platelet aggregation induced by different inducers and has a preventive effect on cerebral infarction caused by the midbrain artery in rats.

[0003] During the production of ozagrel sodium active pharmaceutical ingredient (API), drying is required. While existing API drying equipment can meet the basic requirements for drying the API and can achieve more efficient drying by shaking the equipment, it often relies on a scraper structure on the stirring mechanism to prevent material from adhering to the inner wall of the drying unit and being damaged by continuous heating. However, in reality, only intermittent rotation of the scraper structure is needed. Continuous rotation of the scraper structure would render it ineffective for extended periods, leading to severe wear and shortening its lifespan, thus failing to fully meet user needs. Utility Model Content

[0004] In view of this, this utility model addresses the shortcomings of the prior art by providing a drying device for raw pharmaceutical materials. This device not only meets the basic requirements for drying raw pharmaceutical materials, but also avoids the scraping structure from constantly rotating and scraping the inner wall of the drying structure, allowing it to work effectively only when needed, thereby preventing ineffective wear of the scraping structure.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a drying device for raw pharmaceutical materials, including a drying tank with a conical shape at the lower end, a top cover detachably provided on the top of the drying tank, a feeding cylinder provided on the top cover, a discharge pipe provided at the bottom of the drying tank, a control valve provided on the discharge pipe, a mounting plate that can be vertically raised and lowered provided on the top cover, a stirring shaft that drives the top cover is rotatably provided on the mounting plate, stirring blades are provided on the stirring shaft, and scraper blades are provided on the stirring blades for scraping and cleaning the material adhering to the inner wall of the conical part of the drying tank, and multiple vertical rods are also vertically slidably provided on the top cover, and scraper rings are provided on the multiple vertical rods for scraping and cleaning the material adhering to the inner wall of the vertical part of the drying tank.

[0006] As a further improvement of this utility model, a mounting bracket is provided on the top cover, and a first telescopic push rod is vertically arranged on the mounting bracket. The output shaft of the first telescopic push rod is connected to the mounting plate.

[0007] As a further improvement of this utility model, the mounting bracket is also provided with a connecting sleeve that is vertically slidably connected to the side end of the mounting bracket.

[0008] As a further improvement of this utility model, a second telescopic push rod is also vertically arranged on the top cover, and a fixing ring is provided on the output shaft of the second telescopic push rod, which is connected to the top of the vertical rod.

[0009] As a further improvement of this invention, the bottom of the drying tank is provided with support legs. The support legs provide stable support for the device.

[0010] As a further improvement of this invention, an exhaust pipe is also provided on the top cover. The exhaust pipe can effectively discharge hot and humid gases and maintain the pressure balance inside the tank.

[0011] As a further improvement of this utility model, an electric heating device is provided inside the side wall of the drying tank, a temperature sensor is provided on the inner wall of the top cover, and a temperature controller electrically connected to the electric heating device and the temperature sensor is provided on the outer wall of the drying tank.

[0012] As a further improvement of this utility model, a drive motor is also provided on the mounting plate, and a gear transmission assembly is provided between the output shaft of the drive motor and the stirring shaft.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] Firstly, the scraper is used to remove material residue from the inner wall of the conical section of the drying tank; the scraper ring is used to remove material adhering to the inner wall of the vertical section of the drying tank. The dual scraping mechanism effectively prevents material from clumping and accumulating, improving heat exchange efficiency and drying uniformity. Furthermore, the scraper, with its liftable mounting plate and the scraper ring, which slides through the vertical rod mechanism, can operate only when needed, avoiding the ineffective wear caused by the continuous operation of the scraping structure in traditional drying equipment.

[0015] Secondly, the mounting frame, the first telescopic push rod, and the mounting plate not only allow for adjustment of the vertical position of the scraper, enabling it to move downwards to a position tangent to the inner wall of the conical section of the tank when only scraping is required, but also allow for flexible and convenient adjustment of the vertical position of the stirring shaft and stirring blades while preventing the scraper from becoming inoperable. This changes and expands the stirring range of the stirring shaft and stirring blades, thereby more thoroughly drying the raw materials.

[0016] Thirdly, the drying tank is equipped with a temperature sensor embedded in its side wall, which works with an external temperature controller to monitor and adjust the temperature in real time; it also has a built-in electric heating device to ensure a constant drying temperature environment. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the stirring shaft, stirring blades, scraper, vertical rod and scraper ring of this utility model;

[0020] Figure 3 This is a schematic diagram of the top cover and connecting sliding hole of this utility model;

[0021] Figure 4 This is a schematic diagram of the drive motor and gear transmission assembly of this utility model.

[0022] In the diagram: 101, Drying tank; 102, Top cover; 103, Feed cylinder; 104, Discharge pipe; 105, Control valve; 106, Mounting plate; 107, Stirring shaft; 108, Stirring blade; 109, Scraper; 110, Vertical rod; 111, Scraper ring; 112, Support leg; 113, Exhaust pipe; 114, Feed valve; 115, Bearing; 116, Connecting sliding hole; 117, Fastening bolt; 201, Mounting bracket; 202, First telescopic push rod; 203, Connecting sliding sleeve; 204, Drive motor; 205, Gear transmission assembly; 301, Second telescopic push rod; 302, Fixing ring; 401, Temperature sensor; 402, Temperature controller. Detailed Implementation

[0023] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.

[0024] like Figure 1 , 2As shown in Figure 3, a drying apparatus for a raw material includes a drying tank 101 with a conical lower end. A top cover 102 is detachably mounted on the top of the drying tank 101. A feed cylinder 103 is mounted on the top cover 102. A discharge pipe 104 is mounted on the bottom of the drying tank 101, and a control valve 105 is mounted on the discharge pipe 104. A vertically movable mounting plate 106 is mounted on the top cover 102. A stirring shaft 1, which drives the top cover 102, is rotatably mounted on the mounting plate 106 via a bearing 115. 07. The stirring shaft 107 is equipped with stirring blades 108. The stirring blades 108 are equipped with scraper plates 109 for scraping and cleaning material adhering to the inner wall of the conical section of the drying tank 101. Multiple vertical rods 110 are also vertically slidably mounted on the top cover 102. The top cover 102 is equipped with connecting sliding holes 116 that slidably connect with the vertical rods 110. The multiple vertical rods 110 are equipped with scraper rings 111 for scraping and cleaning material adhering to the inner wall of the vertical section of the drying tank 101. A feed valve 114 is also provided on the feed cylinder 103. The top cover 102 is snapped into the drying tank 101. The top cover 102 is also equipped with fastening bolts 117 for screwing and fixing the drying tank 101. The drying tank 101 is equipped with threaded fastening holes for screwing into the fastening bolts 117. The top cover 102 is equipped with a through hole for fitting the stirring shaft 107.

[0025] like Figure 1 As shown, a mounting bracket 201 is provided on the top cover 102, and a first telescopic push rod 202 is vertically provided on the mounting bracket 201. The output shaft of the first telescopic push rod 202 is connected to the mounting plate 106.

[0026] like Figure 1 , 2 As shown, a second telescopic push rod 301 is also vertically arranged on the top cover 102. A fixing ring 302 is provided on the output shaft of the second telescopic push rod 301, and the fixing ring 302 is connected to the top of the vertical rod 110.

[0027] like Figure 1 As shown, an exhaust pipe 113 is also provided on the top cover 102.

[0028] like Figure 1 As shown, an electric heating device is installed inside the side wall of the drying tank 101, a temperature sensor 401 is installed on the inner wall of the top cover 102, and a temperature controller 402, which is electrically connected to the electric heating device and the temperature sensor 401, is installed on the outer wall of the drying tank 101. The temperature sensor 401 is an infrared non-contact temperature sensor, which is fixed through the top cover 102.

[0029] Workers can open the feed valve 114 to add the raw material to be dried from the feed cylinder 103 into the drying tank 101, and then close the feed valve 114 to prevent steam generated during the drying process from entering the feed cylinder 103 and affecting the feeding device. Then, the electric heating device is turned on, and the target temperature is set by the temperature controller 402. The temperature sensor 401 monitors the internal temperature of the drying tank 101 in real time and feeds the data back to the temperature controller 402. The temperature controller 402 automatically adjusts the power of the electric heating device according to the set value to maintain a constant drying temperature.

[0030] Then, the stirring shaft 107 is driven to rotate; the stirring blades 108 stir the raw material, so that it is heated evenly and the drying speed is accelerated; at this time, the scraper 109 and the scraper ring 111 are in a non-working state (i.e., in the upper position) to avoid unnecessary wear. The scraper 109 is in the initial position near the upper side of the top cover 102 and remains stationary in a non-working state to avoid interference with the scraper 109 that moves vertically with the stirring shaft 107 and the stirring blades 108.

[0031] After a period of time, in order to avoid the raw material adhering to the inner wall for a long time during the drying process, the output shaft of the first telescopic push rod 202 can be driven to extend downward by a certain length, which will drive the stirring shaft 107 and the scraper 109 to descend synchronously. The scraper 109 adheres to the inner wall of the cone part of the drying tank 101 and removes the adhering material as the stirring shaft 107 rotates. Simultaneously, the output axis of the second telescopic push rod 301 can be driven to shorten downward by a certain length, driving the fixing ring 302 downward. The fixing ring 302 drives the vertical rod 110 to slide down as a whole, so that the scraping ring 111 is close to the inner wall of the vertical section of the drying tank 101. The scraping ring 111 rises and falls with the vertical rod 110 and scrapes off the material adhering to the inner wall of the vertical section. After cleaning, the second telescopic push rod 301 is reset, and the scraping ring 111 rises back to its original position and remains stationary, thereby avoiding ineffective wear of the scraping ring 111. Afterward, the scraping plate 109 can be disengaged from the state of being tangent to the inner wall of the conical part of the drying tank 101 by the first telescopic push rod 202, thereby avoiding ineffective wear of the scraping plate 109.

[0032] During the drying process, the generated water vapor is discharged through the exhaust pipe 113 on the top cover 102; this ensures stable air pressure inside the drying tank 101 and prevents pressure changes from affecting the drying effect.

[0033] After drying is complete, open the control valve 105 of the discharge pipe 104 to discharge the dried raw material from the bottom discharge pipe 104; if there is any residual material, the scraping structure can be activated again to assist in the discharge.

[0034] According to another embodiment of the present invention, such as Figure 1As shown, the mounting bracket 201 is also provided with a connecting sleeve 203 that is vertically slidably connected to the side end of the mounting bracket 201. Through the cooperation of the connecting sleeve 203 and the side end of the mounting bracket 201, the mounting plate 106 and the stirring shaft 107 can move stably vertically, preventing the mounting plate 106 from shaking during the rotation of the stirring shaft 107, thereby preventing the first telescopic push rod 202 from easily deforming and being damaged. Because the second telescopic push rod 301 can be guided and supported through the insertion and cooperation of the vertical rod 110 and the connecting sliding hole 116, the second telescopic push rod 301 can also be prevented from easily deforming and being damaged.

[0035] According to another embodiment of the present invention, such as Figure 1 As shown, a support leg 112 is fixedly connected to the bottom of the drying tank 101.

[0036] According to another embodiment of the present invention, such as Figure 1 , 4 As shown, a drive motor 204 is also provided on the mounting plate 106, and a gear transmission assembly 205 is provided between the output shaft of the drive motor 204 and the stirring shaft 107. Simply start the drive motor 204, and the stirring shaft 107 will be driven to rotate through the gear transmission assembly 205.

[0037] The above are preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A drying apparatus for a raw material, comprising a drying tank (101) with a conical lower end, a top cover (102) detachably disposed on the top of the drying tank (101), a feed cylinder (103) disposed on the top cover (102), a discharge pipe (104) disposed at the bottom of the drying tank (101), and a control valve (105) disposed on the discharge pipe (104), characterized in that: The top cover (102) is provided with a vertically lifting mounting plate (106). The mounting plate (106) is rotatably provided with a stirring shaft (107) that drives the top cover (102). The stirring shaft (107) is provided with stirring blades (108). The stirring blades (108) are provided with scraper plates (109) for scraping and cleaning the material adhering to the inner wall of the cone part of the drying tank (101). The top cover (102) is also provided with a plurality of vertical rods (110). The plurality of vertical rods (110) are provided with scraper rings (111) for scraping and cleaning the material adhering to the inner wall of the vertical part of the drying tank (101).

2. The drying apparatus for the active pharmaceutical ingredient as described in claim 1, characterized in that: The top cover (102) is provided with a mounting bracket (201), and a first telescopic push rod (202) is vertically provided on the mounting bracket (201). The output shaft of the first telescopic push rod (202) is connected to the mounting plate (106).

3. The drying apparatus for the active pharmaceutical ingredient as described in claim 2, characterized in that: The mounting bracket (201) is also provided with a connecting sleeve (203) that is vertically slidably connected to the side end of the mounting bracket (201).

4. The drying apparatus for the active pharmaceutical ingredient as described in claim 3, characterized in that: The top cover (102) is also vertically provided with a second telescopic push rod (301), and a fixing ring (302) is provided on the output shaft of the second telescopic push rod (301), which is connected to the top of the vertical rod (110).

5. The drying apparatus for the active pharmaceutical ingredient as described in claim 4, characterized in that: The bottom of the drying tank (101) is provided with support legs (112).

6. The drying apparatus for the active pharmaceutical ingredient as described in claim 5, characterized in that: An exhaust pipe (113) is also provided on the top cover (102).

7. The drying apparatus for the active pharmaceutical ingredient as described in claim 6, characterized in that: An electric heating device is provided inside the side wall of the drying tank (101), a temperature sensor (401) is provided on the inner wall of the top cover (102), and a temperature controller (402) electrically connected to the electric heating device and the temperature sensor (401) is provided on the outer wall of the drying tank (101).

8. The drying apparatus for the active pharmaceutical ingredient as described in claim 7, characterized in that: The mounting plate (106) is also provided with a drive motor (204), and a gear transmission assembly (205) is provided between the output shaft of the drive motor (204) and the stirring shaft (107).

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