Single-cone drying machine and drying method for pharmacy

Abstract

The single-cone drying machine comprises a top cover mechanism and a conical shell, the top cover mechanism comprises a top cover, a motor, a gear disc, a fixture, auger blades and a wall scraping assembly, the motor is installed at the upper end of the top cover, the gear disc is fixedly installed at the lower end of the top cover, the fixture is arranged below the gear disc, and the auger blades are fixedly installed on the fixture. The output end of the motor is fixedly connected with the middle of the fixture, a stirring shaft is rotatably mounted at one end of the fixture, a stirring gear is fixedly mounted at the upper end of the stirring shaft and meshed with the gear disc, the auger blade is fixedly mounted on the stirring shaft, and a wall scraping shaft is rotatably mounted at the other end of the fixture and meshed with the gear disc. A wall scraping gear is fixedly installed at the upper end of the wall scraping shaft, the wall scraping gear is meshed with the gear disc, and the wall scraping assembly is installed on the wall scraping shaft. Through the overall structure arrangement, the flowing speed of medicine is higher, the stirring effect is better, mixing is more sufficient, the driving structure is simple, and operation and control are convenient.

Description

Technical Field

[0001] The invention relates to the field of single cone dryers, in particular to a single cone dryer. Background Art

[0002] A dryer is a mechanical device that uses heat energy to reduce the moisture content of materials. It is used to dry objects. The dryer heats the material to vaporize the moisture (generally water or other volatile liquid components) in order to obtain solid materials with a specified moisture content. The purpose of drying is to meet the needs of material use or further processing.

[0003] The single cone dryer is a type of dryer. The existing single cone dryer has two stirring modes. One type is a single cone dryer disclosed in Chinese patent application CN112146358A. A single motor is used to drive the stirring shaft to rotate. A stirring blade is installed on the stirring shaft to stir the material. The material flow of this stirring mode is not sufficient, and the stirring effect is not ideal, which affects the drying efficiency. The other type is a single cone dryer disclosed in Chinese patent application CN116625079A. The self-rotating reducer drives the driving shaft to rotate, and the revolution reducer drives the main shaft to revolve. The two are matched. The stirring blades are driven together to stir the materials, which improves the material flow speed and stirring effect. However, since the patent requires the use of a self-rotating reducer and a revolving reducer, the driving structure is more complicated, inconvenient to operate and control, and in actual use, there may be problems such as the failure of the movements of the self-rotating reducer and the revolving reducer to be accurately transmitted to the stirring shaft, unstable transmission, and easy disengagement of the transmission connection, resulting in unstable operation of the dryer and reduced stirring effect. In addition, the above two stirring methods do not have a scraping mechanism, and the material sticks to the inner wall of the dryer, which also leads to reduced stirring effect. Summary of the invention

[0004] The purpose of the present application is to provide a single cone dryer, wherein a gear plate is installed at the lower end of a top cover, an output end of a motor is inserted through the top cover and the gear plate and connected to a mold frame, a stirring shaft is rotatably installed at one end of the mold frame, a stirring gear is fixedly installed at the upper end of the stirring shaft, the stirring gear is meshed with the gear plate, an auger blade is fixedly installed on the stirring shaft, a wall scraping shaft is rotatably installed at the other end of the mold frame, a wall scraping gear is fixedly installed at the upper end of the wall scraping shaft, the wall scraping gear is meshed with the gear plate, a wall scraping assembly is installed on the wall scraping shaft, the motor is started to drive the mold frame to rotate, and the mold frame drives the stirring shaft The scraper shaft rotates with the output end of the motor as the axis, thereby driving the auger blades and the scraper assembly to move along the inner wall of the conical shell, and the stirring gear and the scraper gear act on the gear plate to drive the stirring shaft and the scraper shaft to rotate, and the auger blades and the scraper assembly rotate accordingly. This stirring method can enable the auger blades to fully stir the medicine, the medicine flows faster and the stirring effect is better, the mixing is more sufficient, and the driving structure is simple, easy to operate and control. At the same time, the scraper assembly can prevent the medicine from sticking to the inner wall of the conical shell, ensuring that the medicine is fully dried.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a single cone dryer, comprising a top cover mechanism, a conical shell and a discharge valve, the top cover mechanism comprising a top cover, a motor, a gear plate, a frame, an auger blade and a scraper assembly, the top cover is arranged above the conical shell, the motor is fixedly mounted on the upper end of the top cover, the gear plate is fixedly mounted on the lower end of the top cover, the frame is arranged below the gear plate, the output end of the motor passes through the top cover and the gear plate, and the output end of the motor is fixedly mounted on the middle part of the frame. Fixed connection, a stirring shaft is rotatably installed on one end of the frame, a stirring gear is fixedly installed on the upper end of the stirring shaft, the stirring gear is meshed with the gear plate, the auger blade is fixedly installed on the stirring shaft, a scraping shaft is rotatably installed on the other end of the frame, a scraping gear is fixedly installed on the upper end of the scraping shaft, the scraping gear is meshed with the gear plate, the scraping assembly is installed on the scraping shaft, the auger blade and the scraping assembly are both arranged to fit the inner wall of the conical shell, and the discharge valve is installed at the lower end of the conical shell.

[0006] Preferably, the top cover mechanism also includes a connecting rod and an arc rod, the upper end of the connecting rod is fixedly connected to the middle part of the frame, the arc rod is fixedly installed on the lower end of the connecting rod, one end of the arc rod is rotatably connected to the stirring shaft, and the other end of the arc rod is rotatably connected to the scraping shaft.

[0007] Preferably, the wall scraper assembly includes two mounting rings and a plurality of scrapers, the two mounting rings are respectively fixedly mounted on the two ends of the wall scraper shaft, the plurality of scrapers are arranged in a circular array between the two mounting rings, a rotating shaft is fixedly mounted on one side of the scraper, the two ends of the rotating shaft are respectively rotatably connected to the two mounting rings, a plurality of fixed bosses are fixedly mounted on the mounting ring in a circular array, a rotating boss is fixedly mounted on the other side of the scraper, and an elastic rope is connected between each of the fixed bosses and the corresponding rotating boss.

[0008] Preferably, the fixed boss is arranged on a straight line where a line connecting the corresponding rotating shaft and the axis of the scraping shaft is located, and a distance between the fixed boss and the corresponding rotating boss is smaller than a distance between the corresponding rotating shaft and the corresponding rotating boss.

[0009] Preferably, the bracket also includes a support ring, a plurality of legs, two connecting plates and two hydraulic cylinders, the support ring is sleeved on the outside of the conical shell, the plurality of legs are equidistantly fixedly installed on the lower end of the support ring, the two connecting plates are symmetrically installed on the side walls of the top cover, the two hydraulic cylinders are symmetrically fixedly installed on the lower end of the support ring, the telescopic ends of the two hydraulic cylinders are both inserted through the support ring, and the telescopic ends of the two hydraulic cylinders are respectively fixedly connected to the lower ends of the two connecting plates.

[0010] Preferably, a plurality of limit blocks are fixedly installed at equal intervals on the outer wall of the conical shell, and a plurality of limit grooves are provided at equal intervals on the inner wall of the support ring, and the position and width of each limit groove matches the position and width of the corresponding limit block.

[0011] Preferably, the unloading valve includes a valve body, a fan and a three-way solenoid valve, the valve body is fixedly installed on the lower end of the conical shell, and arc-shaped cavities and multiple through holes are symmetrically provided on both sides of the top of the valve body, and the arc-shaped cavities are connected with the interior of the valve body through corresponding through holes. The fan and the three-way solenoid valve are fixedly installed on the outer wall of the valve body, and the air outlet end of the fan is connected with the lower port of the three-way solenoid valve through a pipeline. The ports on both sides of the three-way solenoid valve are fixedly installed with air inlet pipes, and one end of the two air inlet pipes is respectively connected with the two arc-shaped cavities.

[0012] Preferably, a dustproof net is fixedly mounted on the inner wall of the arc-shaped cavity.

[0013] Preferably, a dust shield is provided in the through hole, and the top of the dust shield is rotatably connected to the side wall of the through hole.

[0014] Preferably, the present invention also provides a drying method for pharmaceutical preparation, the method comprising the following steps:

[0015] Loosen the connecting bolts between the top cover and the conical shell, start the hydraulic cylinder, and its telescopic end pushes the connecting plate to drive the top cover mechanism to rise, put the medicine to be dried into the conical shell, lower the top cover mechanism, and reconnect the top cover and the conical shell with the connecting bolts;

[0016] The conical shell is heated and the air is inlet and outlet treated. At the same time, the motor is started to drive the frame to rotate. The frame drives the stirring shaft and the scraping shaft to rotate with the output end of the motor as the axis, thereby driving the auger blades and the scraping assembly to move along the inner wall of the conical shell. The stirring gear and the scraping gear act on the gear plate to drive the stirring shaft and the scraping shaft to rotate. The auger blades and the scraping assembly rotate accordingly. The auger blades stir and mix the medicine.

[0017] When the scraper rotates, it contacts the inner wall of the conical shell and deflects with the rotating shaft as the axis. The elastic rope is stretched, and the elastic force of the elastic rope can pull the scraper to make it close to the inner wall of the conical shell, so as to scrape off the medicine adhered to the inner wall of the conical shell.

[0018] After the medicine is fully dried, open the discharge valve to discharge the medicine.

[0019] In summary, the technical effects and advantages of the present invention are as follows:

[0020] 1. In the present invention, a gear plate is installed at the lower end of the top cover, the output end of the motor is inserted through the top cover and the gear plate and connected to the frame, a stirring shaft is rotatably installed at one end of the frame, a stirring gear is fixedly installed at the upper end of the stirring shaft, the stirring gear is meshed with the gear plate, the auger blade is fixedly installed on the stirring shaft, a wall scraping shaft is rotatably installed at the other end of the frame, a wall scraping gear is fixedly installed at the upper end of the wall scraping shaft, the wall scraping gear is meshed with the gear plate, the wall scraping assembly is installed on the wall scraping shaft, the motor is started to drive the frame to rotate, the frame drives the stirring shaft and the wall scraping shaft to rotate with the output end of the motor as the axis, thereby driving the auger blade and the wall scraping assembly Moving along the inner wall of the conical shell, the stirring gear and the scraping gear act on the gear plate, driving the stirring shaft and the scraping shaft to rotate, and the auger blades and the scraping assembly rotate accordingly. This stirring method can make the auger blades fully stir the medicine, the medicine flows faster and the stirring effect is better, the mixing is more sufficient, and the driving structure is simple, easy to operate and control, the action of the motor can be accurately transmitted to the stirring shaft and the scraping shaft, and it is not easy for the connection structure to be disengaged, and the dryer to run unstably. At the same time, the scraping assembly can prevent the medicine from sticking to the inner wall of the conical shell, ensuring that the medicine is thoroughly stirred and fully dried.

[0021] 2. In the present invention, the conical shell is fixed by using a support ring and a support leg, two hydraulic cylinders are installed on the support ring, and two connecting plates are symmetrically installed on the side walls of the top cover, the telescopic ends of the two hydraulic cylinders are inserted through the support ring, and the telescopic ends of the two hydraulic cylinders are respectively fixedly connected to the lower ends of the two connecting plates. By driving the hydraulic cylinders, the top cover can be driven to rise, which is convenient for adding the medicine to be dried into the conical shell and convenient for cleaning the conical shell.

[0022] 3. In the present invention, the unloading valve comprises a valve body, a fan and a three-way solenoid valve, the valve body is fixedly installed at the lower end of the conical shell body, and arc-shaped cavities and multiple through holes are symmetrically provided on both sides of the top of the valve body, the arc-shaped cavities are connected with the interior of the valve body through corresponding through holes, the fan and the three-way solenoid valve are fixedly installed on the outer wall of the valve body, the air outlet end of the fan is connected with the lower port of the three-way solenoid valve through a pipeline, and the ports on both sides of the three-way solenoid valve are fixedly installed with air inlet pipes, one end of the two air inlet pipes is respectively connected with the two arc-shaped cavities, and the air inlet of the fan is controlled by the three-way solenoid valve to alternately pass from the two air inlet pipes into the two arc-shaped cavities, the air pressure in the arc-shaped cavity increases, the gas pushes open the dust shield plate and enters the valve body, and blows the valve leaf of the valve body, driving the valve core to rotate unidirectionally, and the drug dust in the valve body is discharged from the valve body together with the gas, so as to facilitate the cleaning of the inside of the valve body and avoid the mixing of the material to be used next time and the residual material debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0025] Figure 2 It is a three-dimensional structural schematic diagram of another state of the present invention;

[0026] Figure 3 It is a cross-sectional schematic diagram of the top cover mechanism and the conical shell of the present invention;

[0027] Figure 4 It is a structural schematic diagram of the top cover mechanism of the present invention;

[0028] Figure 5 It is a structural schematic diagram of the wall scraping assembly of the present invention;

[0029] Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle;

[0030] Figure 7It is a schematic diagram of the structure of the support of the present invention;

[0031] Figure 8 It is a structural schematic diagram of the conical shell of the present invention;

[0032] Fig. 9 It is a structural schematic diagram of the discharge valve of the present invention;

[0033] Fig.10 It is a schematic diagram of the cross-section structure of the discharge valve of the present invention;

[0034] Fig.11 It is a schematic diagram of the cross-section structure of the discharge valve of the present invention from another angle;

[0035] Fig.12 For the present invention Fig.11 Enlarged view of point B in the middle.

[0036] In the figure: 1. bracket; 101. support ring; 102. support leg; 103. hydraulic cylinder; 104. connecting plate; 105. limit groove; 2. top cover mechanism; 201. top cover; 202. motor; 203. gear plate; 204. frame; 205. stirring shaft; 206. stirring gear; 207. auger blade; 208. scraper shaft; 209. scraper gear; 210. scraper assembly; 2101. mounting ring; 2102, scraper; 2103, rotating shaft; 2104, fixed boss; 2105, rotating boss; 2106, elastic rope; 211, connecting rod; 212, arc rod; 3, conical shell; 301, limit block; 4, discharge valve; 401, valve body; 403, arc cavity; 404, through hole; 405, fan; 406, three-way solenoid valve; 407, air inlet pipe; 408, dust net; 409, dust shield. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Example 1: Reference Figure 1-Figure 4The single cone dryer shown in the figure comprises a top cover mechanism 2, a conical shell 3 and a discharge valve 4, wherein the top cover mechanism 2 comprises a top cover 201, a motor 202, a gear plate 203, a frame 204, an auger blade 207 and a scraper assembly 210, wherein the top cover 201 is arranged above the conical shell 3, the motor 202 is fixedly mounted on the upper end of the top cover 201, the gear plate 203 is fixedly mounted on the lower end of the top cover 201, the frame 204 is arranged below the gear plate 203, the output end of the motor 202 passes through the top cover 201 and the gear plate 203, and the output end of the motor 202 The end is fixedly connected to the middle part of the frame 204, one end of the frame 204 is rotatably mounted with a stirring shaft 205, the upper end of the stirring shaft 205 is fixedly mounted with a stirring gear 206, the stirring gear 206 is meshed with the gear plate 203, the auger blade 207 is fixedly mounted on the stirring shaft 205, the other end of the frame 204 is rotatably mounted with a wall scraping shaft 208, the upper end of the wall scraping shaft 208 is fixedly mounted with a wall scraping gear 209, the wall scraping gear 209 is meshed with the gear plate 203, the wall scraping assembly 210 is mounted on the wall scraping shaft 208, the auger blade 207 and the wall scraping assembly The components 210 are all arranged in contact with the inner wall of the conical shell 3, and the discharge valve 4 is installed at the lower end of the conical shell 3. The motor 202 drives the frame 204 to rotate, and the frame 204 drives the stirring shaft 205 and the scraping shaft 208 to rotate with the output end of the motor 202 as the axis, thereby driving the auger blade 207 and the scraping assembly 210 to move along the inner wall of the conical shell 3, and the stirring gear 206 and the scraping gear 209 act on the gear plate 203 to drive the stirring shaft 205 and the scraping shaft 208 to rotate, and the auger blade 207 and the scraping assembly 210 rotate accordingly, and the auger blade 207 crushes, stirs, and mixes the medicine. This stirring method can make the medicine flow faster and have a better stirring effect, and mix more fully. Compared with a single-cone dryer disclosed in Chinese patent application CN116625079A, the driving structure of the present invention is simple, easy to operate and control, the action of the motor 202 can be accurately transmitted to the stirring shaft 205 and the scraping shaft 208, and it is not easy for the connection structure to be disengaged and the dryer to run unstably. At the same time, the scraping assembly 210 scrapes the medicine adhered to the inner wall of the conical shell 3, which can prevent the medicine from adhering to the inner wall of the conical shell 3, and ensure that the medicine is thoroughly stirred and fully dried.

[0039] The top cover mechanism 2 also includes a connecting rod 211 and an arc rod 212. The upper end of the connecting rod 211 is fixedly connected to the middle part of the frame 204, and the arc rod 212 is fixedly installed on the lower end of the connecting rod 211. One end of the arc rod 212 is rotatably connected to the stirring shaft 205, and the other end of the arc rod 212 is rotatably connected to the wall scraping shaft 208. The connection method needs to ensure that the stirring shaft 205 and the wall scraping shaft 208 can rotate around themselves. The arc rod 212 supports the lower ends of the stirring shaft 205 and the wall scraping shaft 208, and the frame 204 supports the upper ends of the stirring shaft 205 and the wall scraping shaft 208. The two cooperate to firmly install the stirring shaft 205 and the wall scraping shaft 208, ensuring that the stirring shaft 205 and the wall scraping shaft 208 are more stable during movement, preventing the two from shifting and causing the stirring gear 206 and the wall scraping gear 209 to disengage from the gear plate 203, thereby affecting the stirring and scraping actions.

[0040] Embodiment 2 is different from the above embodiment in that Figure 5 and Figure 6 As shown, the wall scraper assembly 210 includes two mounting rings 2101 and a plurality of scrapers 2102, the two mounting rings 2101 are respectively fixedly mounted on the two ends of the wall scraper shaft 208, and the plurality of scrapers 2102 are arranged in a ring array between the two mounting rings 2101, a rotating shaft 2103 is fixedly mounted on one side of the scraper 2102, and the two ends of the rotating shaft 2103 are rotatably connected to the two mounting rings 2101 respectively, and a plurality of fixed bosses 2104 are fixedly mounted in a ring array on the mounting ring 2101, and a rotating boss 2105 is fixedly mounted on the other side of the scraper 2102, and an elastic rope 2106 is connected between each of the fixed bosses 2104 and the corresponding rotating boss 2105, so that the scraper 2102 can be driven to rotate when the wall scraper shaft 208 rotates, so as to continuously scrape the inner wall of the conical shell 3. The fixed boss 2104 is arranged on the straight line where the axis line connecting the corresponding rotating shaft 2103 and the wall scraping shaft 208 is located, and the distance between the fixed boss 2104 and the corresponding rotating boss 2105 is smaller than the distance between the corresponding rotating shaft 2103 and the corresponding rotating boss 2105. The scraper 2102 contacts the inner wall of the conical shell 3 when rotating and deflects with the rotating shaft 2103 as the axis. According to the above structural arrangement, no matter in which direction the scraper 2102 deflects, the elastic rope 2106 will be stretched. The elastic force of the elastic rope 2106 can pull the scraper 2102 to make it close to the inner wall of the conical shell 3, improve the wall scraping effect, and reset the scraper 2102 after it detaches from the inner wall of the conical shell 3. If the rotation direction of the wall scraping shaft 208 changes, the above structure is also applicable, and the scraper 2102 can still close to the inner wall of the conical shell 3 for scraping the wall.

[0041] Embodiment 3 is different from the above embodiments in that Figure 7 and Figure 8As shown, the present invention also includes a bracket 1, which includes a support ring 101, a plurality of legs 102, two connecting plates 104 and two hydraulic cylinders 103. The support ring 101 is sleeved on the outside of the conical shell 3, and the plurality of legs 102 are equidistantly fixedly installed on the lower end of the support ring 101. The two connecting plates 104 are symmetrically installed on the side walls of the top cover 201. The two hydraulic cylinders 103 are symmetrically fixedly installed on the lower end of the support ring 101. The telescopic ends of the two hydraulic cylinders 103 are both inserted through the support ring 101, and the telescopic ends of the two hydraulic cylinders 103 are respectively fixedly connected to the lower ends of the two connecting plates 104. When the hydraulic cylinder 103 is started, its telescopic end pushes the connecting plate 104, driving the top cover mechanism 2 to rise, so as to facilitate the addition of medicine into the conical shell 3 or the cleaning of the conical shell 3, and also facilitate the cleaning of the auger blades 207 and the scraper assembly 210 to avoid mixing of the material used next time with the residual material debris.

[0042] The outer wall of the conical shell 3 is equidistantly fixed with a plurality of limit blocks 301, and the inner wall of the support ring 101 is equidistantly provided with a plurality of limit grooves 105, the position and width of each limit groove 105 matches the position and width of the corresponding limit block 301, to ensure that the conical shell 3 placed on the support ring 101 will not rotate, and at the same time ensure that the conical shell 3 and the top cover 201 do not rotate relative to each other, and the flange holes used to connect the two are not misaligned, so as to facilitate the sealed connection between the two.

[0043] Embodiment 4 is different from the above embodiments in that Figure 9-12 As shown, the discharge valve 4 includes a valve body 401, a fan 405 and a three-way solenoid valve 406. The valve body 401 is fixedly installed at the lower end of the conical shell 3. The two sides of the top of the valve body 401 are symmetrically provided with an arc cavity 403 and a plurality of through holes 404. The arc cavity 403 is connected with the interior of the valve body 401 through the corresponding through holes 404. The fan 405 and the three-way solenoid valve 406 are both fixedly installed on the outer wall of the valve body 401. The air outlet end of the fan 405 is connected with the lower port of the three-way solenoid valve 406 through a pipeline. The ports on both sides of the three-way solenoid valve 406 are fixed. An air inlet pipe 407 is fixedly installed, and one end of the two air inlet pipes 407 is connected to the two arc-shaped cavities 403 respectively. The air inlet of the fan 405 is controlled by the three-way solenoid valve 406 to alternately pass into the two arc-shaped cavities 403 from the two air inlet pipes 407. The air pressure in the arc-shaped cavity 403 increases, and the gas pushes open the dust baffle 409 to enter the valve body 401, and blows the valve leaf of the valve body 401, driving the valve core to rotate unidirectionally, and the drug dust in the valve body 401 is discharged from the valve body 401 together with the gas, so as to facilitate the cleaning of the inside of the valve body 401 and avoid the mixing of the material to be used next time and the residual material debris.

[0044] A dustproof net 408 is fixedly installed on the inner side wall of the arc cavity 403 to prevent drug dust from entering the arc cavity 403 through the through hole 404. A dust shield 409 is arranged in the through hole 404 to block the arc cavity 403 and the inside of the valve body 401 during the non-cleaning time of the discharge valve 4, further preventing drug dust from entering the arc cavity 403 through the through hole 404, and because the top of the dust shield 409 is rotatably connected to the side wall of the through hole 404, when the gas pushes the dust shield 409 away, the dust shield 409 rotates with its top as the axis, and the dust shield 409 forms an angle with the inner wall of the valve body 401, and the dust shield 409 is in an inclined state, and the gas flows downward, blowing the drug dust downward while blowing the valve leaf of the valve body 401, driving the valve core to rotate unidirectionally, so that the drug dust in the valve body 401 is conveniently discharged from the valve body 401 together with the gas.

[0045] Working principle:

[0046] The connecting bolts between the top cover 201 and the conical shell 3 are loosened, and the hydraulic cylinder 103 is started. The telescopic end of the hydraulic cylinder 103 pushes the connecting plate 104, driving the top cover mechanism 2 to rise, and the medicine to be dried is placed in the conical shell 3. The top cover mechanism 2 is lowered, and the top cover 201 is reconnected with the conical shell 3 through the connecting bolts;

[0047] The conical shell 3 is heated and the air is introduced into and out of the conical shell 3. At the same time, the motor 202 is started to drive the frame 204 to rotate. The frame 204 drives the stirring shaft 205 and the scraping shaft 208 to rotate with the output end of the motor 202 as the axis, thereby driving the auger blade 207 and the scraping assembly 210 to move along the inner wall of the conical shell 3. The stirring gear 206 and the scraping gear 209 act on the gear plate 203 to drive the stirring shaft 205 and the scraping shaft 208 to rotate. The auger blade 20 7 and the scraper assembly 210 rotate accordingly, the auger blade 207 stirs and mixes the medicine, the scraper 2102 contacts the inner wall of the conical shell 3 when rotating and deflects with the rotating shaft 2103 as the axis, the elastic rope 2106 is stretched, and the elastic force of the elastic rope 2106 can pull the scraper 2102 to make it close to the inner wall of the conical shell 3, and scrape off the medicine adhered to the inner wall of the conical shell 3. After the medicine is fully dried, the discharge valve 4 is opened to discharge the medicine;

[0048] To avoid mixing the material to be used next time with the residual material debris, the interior of the conical shell 3 and the discharge valve 4 needs to be cleaned after each drug drying. When cleaning the conical shell 3, the top cover mechanism 2 can be lifted by the hydraulic cylinder 103 to facilitate cleaning. When cleaning the discharge valve 4, the fan 405 and the three-way solenoid valve 406 are started. The three-way solenoid valve 406 controls the air intake of the fan 405 to alternately pass from the two air inlet pipes 407 into the two arc-shaped cavities 403. The air pressure in the arc-shaped cavity 403 increases, and the gas pushes open the dust baffle 409 to enter the valve body 401, and blows the valve leaf of the valve body 401, driving the valve core to rotate unidirectionally, and the drug dust in the valve body 401 is discharged from the valve body 401 together with the gas, completing the cleaning.

[0049] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A single cone dryer, comprising a top cover mechanism, a conical housing and a discharge valve, characterized in that: The top cover mechanism comprises a top cover, a motor, a gear plate, a frame, an auger blade and a scraper assembly, the top cover is arranged above the conical shell, the motor is fixedly mounted on the upper end of the top cover, the gear plate is fixedly mounted on the lower end of the top cover, the frame is arranged below the gear plate, the output end of the motor passes through the top cover and the gear plate, and the output end of the motor is fixedly connected to the middle part of the frame, a stirring shaft is rotatably mounted on one end of the frame, a stirring gear is fixedly mounted on the upper end of the stirring shaft, the stirring gear is meshed with the gear plate, the auger blade is fixedly mounted on the stirring shaft, a scraper shaft is rotatably mounted on the other end of the frame, a scraper gear is fixedly mounted on the upper end of the scraper shaft, the scraper gear is meshed with the gear plate, the scraper assembly is mounted on the scraper shaft, the auger blade and the scraper assembly are both arranged in contact with the inner wall of the conical shell, and the discharge valve is mounted on the lower end of the conical shell.

2. A single cone dryer according to claim 1, characterized in that: The top cover mechanism also includes a connecting rod and an arc rod, the upper end of the connecting rod is fixedly connected to the middle part of the frame, the arc rod is fixedly installed on the lower end of the connecting rod, one end of the arc rod is rotatably connected to the stirring shaft, and the other end of the arc rod is rotatably connected to the scraping shaft.

3. A single cone dryer according to claim 1, characterized in that: The wall scraper assembly includes two mounting rings and a plurality of scrapers, the two mounting rings are respectively fixedly mounted on the two ends of the wall scraper shaft, the plurality of scrapers are arranged in a circular array between the two mounting rings, a rotating shaft is fixedly mounted on one side of the scraper, the two ends of the rotating shaft are respectively rotatably connected to the two mounting rings, a plurality of fixed bosses are fixedly mounted on the mounting ring in a circular array, a rotating boss is fixedly mounted on the other side of the scraper, and an elastic rope is connected between each of the fixed bosses and the corresponding rotating boss.

4. A single cone dryer according to claim 3, characterized in that: The fixed boss is arranged on a straight line where the axis connecting the corresponding rotating shaft and the wall scraping shaft is located, and the distance between the fixed boss and the corresponding rotating boss is smaller than the distance between the corresponding rotating shaft and the corresponding rotating boss.

5. The single cone dryer according to claim 1, characterized in that: It also includes a bracket, which includes a support ring, a plurality of legs, two connecting plates and two hydraulic cylinders. The support ring is sleeved on the outside of the conical shell, and the plurality of legs are equidistantly fixedly installed on the lower end of the support ring. The two connecting plates are symmetrically installed on the side walls of the top cover. The two hydraulic cylinders are symmetrically fixedly installed on the lower end of the support ring. The telescopic ends of the two hydraulic cylinders are both inserted through the support ring, and the telescopic ends of the two hydraulic cylinders are respectively fixedly connected to the lower ends of the two connecting plates.

6. A single cone dryer according to claim 5, characterized in that: The outer wall of the conical shell is fixedly provided with a plurality of limit blocks at equal intervals, and the inner wall of the support ring is provided with a plurality of limit grooves at equal intervals, and the position and width of each limit groove matches the position and width of the corresponding limit block.

7. The single cone dryer according to claim 1, characterized in that: The discharge valve includes a valve body, a fan and a three-way solenoid valve. The valve body is fixedly installed at the lower end of the conical shell. Arc cavities and multiple through holes are symmetrically provided on both sides of the top of the valve body. The arc cavities are connected with the interior of the valve body through corresponding through holes. The fan and the three-way solenoid valve are fixedly installed on the outer wall of the valve body. The air outlet end of the fan is connected with the lower port of the three-way solenoid valve through a pipeline. Air inlet pipes are fixedly installed on the ports on both sides of the three-way solenoid valve, and one end of the two air inlet pipes is respectively connected with two arc cavities.

8. A single cone dryer according to claim 7, characterized in that: A dustproof net is fixedly installed on the inner side wall of the arc-shaped cavity.

9. The single cone dryer according to claim 7, characterized in that: A dust shield is arranged in the through hole, and the top of the dust shield is rotatably connected to the side wall of the through hole.

10. A method for drying medicine using a single cone dryer as claimed in any one of claims 1 to 9, characterized in that: The method comprises the following steps: Loosen the connecting bolts between the top cover and the conical shell, start the hydraulic cylinder, and its telescopic end pushes the connecting plate to drive the top cover mechanism to rise, put the medicine to be dried into the conical shell, lower the top cover mechanism, and reconnect the top cover and the conical shell with the connecting bolts; The conical shell is heated and the air is inlet and outlet treated. At the same time, the motor is started to drive the frame to rotate. The frame drives the stirring shaft and the scraping shaft to rotate with the output end of the motor as the axis, thereby driving the auger blades and the scraping assembly to move along the inner wall of the conical shell. The stirring gear and the scraping gear act on the gear plate to drive the stirring shaft and the scraping shaft to rotate. The auger blades and the scraping assembly rotate accordingly. The auger blades stir and mix the medicine. When the scraper rotates, it contacts the inner wall of the conical shell and deflects with the rotating shaft as the axis, the elastic rope is stretched, and the elastic force of the elastic rope can pull the scraper to make it close to the inner wall of the conical shell, so as to scrape off the medicine adhered to the inner wall of the conical shell; After the medicine is fully dried, open the discharge valve to discharge the medicine.

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