Cooling device for veterinary drug production

Abstract

The invention relates to the field of veterinary drug production and preparation, in particular to a veterinary drug production cooling device which comprises a reaction cylinder and a cooling assembly, the reaction cylinder comprises an inner cylinder and an outer cylinder attached to the outer wall of the inner cylinder, rotatable fan blades are arranged in the inner cylinder, and first liquid holes are formed in the positions, close to the rotating center, of the concave sides of the fan blades; second liquid holes are formed in the positions, close to the inner wall of the inner barrel, of the protruding sides of the fan blades, the first liquid holes communicate with the second liquid holes, and the cooling assembly is used for cooling fluid in the outer barrel. Through the fan blades and the first liquid holes and the second liquid holes formed in the fan blades, an internal flow guide structure is formed, rotational flow is formed inside through rotation of the fan blades, fluid is guided to the second liquid holes from the first liquid holes in the inner side through guiding of the fan blades, and therefore a circulating state is formed in the position close to the inner wall of the inner barrel, and the flow guide effect is improved. And therefore, internal and external fluids can be in full contact with the cooling assembly for cooling.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of veterinary drug production and preparation, in particular to a cooling device for veterinary drug production. BACKGROUND

[0002] Veterinary drugs generally refer to drugs specially used for the treatment, prevention, diagnosis and other purposes of animals. In the production and preparation process of veterinary drugs, cooling is a key process control measure, which is usually applied in synthesis, crystallization, fermentation, mixing and other links. This is because many raw materials required in the production process will produce intense exothermic chemical reactions when mixed, and the reaction heat needs to be treated to avoid uncontrolled reactions or decomposition or isomerization of compounds at high temperatures.

[0003] In order to solve the above problems, the prior art proposes a cooling device, which is usually designed with double layers, i.e. the inner layer is used for mixing materials, and the outer layer is used for cooling. For the cooling of the outer layer, it is usually covered with circulating cooling water on the outer surface of the entire inner layer, so as to realize the purpose of temperature control in the form of heat transfer effect. Although this scheme can produce temperature control effect, since the internal space of the entire reaction layer is large, and the form of heat transfer is only at the position of the outer wall, the material in the middle position cannot directly form heat transfer, and needs to be slowly transferred to the middle position after the material at the outer wall completes cooling. This way will cause slow temperature control, and part of the material in the middle may have completed the uncontrolled reaction at high temperature before cooling. In order to solve this problem, a cooling device for veterinary drug production is provided. SUMMARY

[0004] The present application provides the following technical solutions in view of the deficiencies of the prior art.

[0005] The cooling device for veterinary drug production comprises a reaction cylinder and a cooling assembly.

[0006] Specifically, the reaction cylinder comprises an inner cylinder and an outer cylinder attached to the outer wall of the inner cylinder, the inner part of the inner cylinder is provided with a rotatable fan blade, the recessed side of the fan blade is provided with a liquid hole one near the rotation center, the convex side of the fan blade is provided with a liquid hole two near the inner wall of the inner cylinder, the liquid hole one and the liquid hole two are communicated, and the cooling assembly is used for cooling the fluid in the inner part of the outer cylinder.

[0007] As the improvement of the above technical scheme, the inside of the outer cylinder is provided with a cylindrical cooling cavity, the cooling assembly comprises a spiral pipe, one end of the spiral pipe is connected with a pump body, the other end of the pump body is connected with one end of a heat exchange pipe, the other end of the heat exchange pipe is communicated with the other end of the spiral pipe, fins are penetrated through the outside of the heat exchange pipe, one side of the fins is provided with a cooling fan, the cooling assembly comprises a mounting frame, the inside of the mounting frame is provided with a shell, the cooling fan is arranged in the inside of the shell, and the air outlet direction of the cooling fan is towards the gap between the adjacent two fins.

[0008] As the improvement of the above technical scheme, the pump body is fixed to one side of the mounting frame, the upper end surface of the mounting frame is detachably fixed with a horizontal plate, the heat exchange pipe is fixed to the inside of the horizontal plate, and the upper end surface of the shell is provided with a detachable ventilation opening.

[0009] As the improvement of the above technical scheme, the upper end surface of the outer cylinder is provided with a connecting piece, the lower end surface of the mounting frame is attached to the connecting piece, the attachment surface is fixed by penetrating bolts and nuts, and the lower end surface of the outer cylinder is integrally formed with a plurality of supporting legs.

[0010] As the improvement of the above technical scheme, the lower end of the shell is fixed with a double-head motor, one end of the double-head motor is connected to the rotation center of the cooling fan, the other end of the double-head motor penetrates into the inside of the inner cylinder and is fixed to the rotation center of the fan blade.

[0011] As the improvement of the above technical scheme, the number of the fan blades is at least three, the central positions of the three fan blades are integrally formed with shaft sleeves, the inside of the shaft sleeve is penetrated to be provided with a middle shaft, one end of the middle shaft is fixed to one end of the double-head motor, the upper end surface of the inner cylinder is provided with a sealing cover, and the central position of the sealing cover is provided with a gear box connected with the double-head motor.

[0012] As the improvement of the above technical scheme, the double-head motor comprises a shaft one and a shaft two, the shaft one penetrates into the rotation center of the cooling fan, the other end of the shaft two is inserted with a transmission member two, the surface of the transmission member two is provided with a penetrating hole, the inside of the penetrating hole is provided with a latch two, one end of the gear box is provided with an input shaft, and the surface of the input shaft is provided with an insertion slot of the transmission member two.

[0013] As the improvement of the above technical scheme, one end of the middle shaft integrally formed with a transmission member one, one end of the gear box located on the inside of the inner cylinder is provided with an output shaft, one end of the transmission member one is inserted into the inside of the output shaft, the transmission member one and the output shaft are fixed by penetrating a latch one from the side surface, the other end of the middle shaft is detachably connected with a fixing piece, the lower end surface of the shaft sleeve is attached to the fixing piece, and the upper end surface of the shaft sleeve is attached to the output shaft.

[0014] As the improvement of the above technical scheme, the sealing cover comprises two semicircular plate bodies, and a positioning ring is integrally formed on the lower end surface of the sealing cover.

[0015] As the improvement of the above technical scheme, the inside of the inner cylinder is provided with a reaction cavity in a cylindrical shape, the bottom of the reaction cavity is provided with a discharge port, the fan blade is a rectangular plate body in an arc shape, the inside of the fan blade is provided with an inner cavity, the upper end surface and the lower end surface of the inner cavity penetrate to the outside of the fan blade, and the liquid hole one and the liquid hole two are communicated with the inner cavity.

[0016] The beneficial effects of the present application are as follows:

[0017] The fan blade and the liquid hole one and the liquid hole two formed on the fan blade form an internal flow guide structure, the rotation of the fan blade forms a cyclone in the inside, the fluid is guided by the liquid hole one on the inside to the liquid hole two through the guidance of the fan blade, so that a circulating state is formed at the position close to the inner wall of the inner cylinder, thereby ensuring that the internal and external fluids can fully contact the cooling assembly for cooling, and in this process, the fan blade can also function as a stirring assembly to fully ensure the reaction effect of the internal material. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a perspective view of the present application;

[0019] Figure 2 It is an exploded view of the present application;

[0020] Figure 3 It is Figure 2 An enlarged structure view of A in the middle;

[0021] Figure 4 It is Figure 2 An enlarged structure view of B in the middle;

[0022] Figure 5 It is Figure 4 An enlarged structure view of C in the middle;

[0023] Figure 6 It is a front view of the present application;

[0024] Figure 7 It is Figure 6 An isometric side sectional view of a-a in the middle;

[0025] Figure 8 It is Figure 7 A state diagram of fluid flow in the inner cylinder in a planar perspective.

[0026] 10, reaction cylinder; 11, inner cylinder; 111, reaction cavity; 12, outer cylinder; 121, cooling cavity; 122, connecting piece; 123, leg; 13, sealing cover; 131, positioning ring; 132, gear box; 133, input shaft; 134, positioning shaft; 14, fan blade; 141, liquid hole one; 142, liquid hole two; 143, inner cavity; 144, shaft sleeve; 15, middle shaft; 151, transmission part one; 152, bolt one; 16, fixing piece; 17, discharge port;

[0027] 20, cooling assembly; 21, mounting frame; 211, cross plate; 212, pump body; 22, fin; 221, spiral pipe; 222, heat exchange pipe; 23, shell; 231, vent; 24, double-head motor; 241, shaft one; 242, shaft two; 243, transmission part two; 244, through hole; 245, bolt two; 25, cooling fan. DETAILED DESCRIPTION

[0028] The present application is described below by specific embodiments, and other advantages and effects of the present application can be easily understood by those skilled in the art from the disclosure of the present specification. The present application can also be implemented or applied by other different embodiments, and various modifications or changes can be made to the details in the present specification based on different views and applications without departing from the spirit of the present application.

[0029] In order to solve the high temperature generated in the reaction process, the prior art proposes a cooling device, which is usually designed as a double layer, that is, the inner layer is used for mixing the materials, and the outer layer is used for cooling. For the cooling of the outer layer, it is usually wrapped by circulating cooling water on the outer surface of the entire inner layer, so as to realize the purpose of temperature control in the form of heat transfer effect. Although this scheme can produce the temperature control effect, since the internal space of the entire reaction layer is large, and the form of heat transfer is only at the position of the outer wall, it leads to that the materials at the middle position cannot directly form heat transfer, and need to be slowly transferred to the middle position after the materials at the outer wall complete the cooling. This way will lead to slow temperature control, and the materials at the middle position may have completed the out-of-control reaction under high temperature before cooling.

[0030] In order to solve the above problems, please refer to Figures 1 to 8 , a cooling device for veterinary drug production is provided, which comprises a reaction cylinder 10 and a cooling assembly 20.

[0031] Specifically, the reaction cylinder 10 comprises an inner cylinder 11 and an outer cylinder 12 attached to the outer wall of the inner cylinder 11, the inner part of the inner cylinder 11 is provided with a rotatable fan blade 14, the concave side of the fan blade 14 is provided with a liquid hole one 141 near the rotation center, the convex side of the fan blade 14 is provided with a liquid hole two 142 near the inner wall of the inner cylinder 11, the liquid hole one 141 and the liquid hole two 142 are communicated, and the cooling assembly 20 is used for cooling the fluid in the inner part of the outer cylinder 12.

[0032] When the fan blade 14 rotates, if the inner part of the inner cylinder 11 is filled with material, the rotation of the fan blade 14 will disturb the material in the inner part, and the change state of the disturbance is as shown in Figure 8 The material will be divided into two parts due to the disturbance, one part flows out from the gap between the fan blade 14 and the inner cylinder 11, and the other part enters between the adjacent two fan blades 14, and since the inner side of the fan blade 14 is provided with the liquid hole one 141, the material flowing into the inner part will enter through the liquid hole one 141 and flow out from the liquid hole two 142, and since the liquid hole two 142 is located at the end position, the material flowing out will enter the edge position, in this way, the material in the inner part flows outwards continuously, so as to form a circulating mixing state, and the material in the outer part is always in contact with the cooling assembly 20 during mixing, so as to achieve the purpose of synchronous mixing and cooling, which not only speeds up the mixing state of the material, but also enhances the cooling effect of the material.

[0033] In order to further improve the structure design of the cooling assembly 20, please refer to Figures 1 to 5 The inner part of the outer cylinder 12 is provided with a cylindrical cooling cavity 121, the cooling assembly 20 comprises a spiral pipe 221, the spiral pipe 221 is arranged in the inner part of the cooling cavity 121, one end of the spiral pipe 221 is connected with a pump body 212, the other end of the pump body 212 is connected with one end of a heat exchange pipe 222, the other end of the heat exchange pipe 222 is communicated with the other end of the spiral pipe 221, the outer side of the heat exchange pipe 222 is penetrated and connected with a fin 22, one side of the fin 22 is provided with a cooling fan 25, the cooling assembly 20 comprises a mounting frame 21, the inner side of the mounting frame 21 is provided with a shell 23, the cooling fan 25 is arranged in the inner part of the shell 23, and the air outlet direction of the cooling fan 25 is towards the gap between the adjacent two fins 22.

[0034] The cooling is carried out through the spiral pipe 221, when placed in the inner part of the outer cylinder 12, the cooling liquid in the inner part of the outer cylinder 12 can enter the inner part of the spiral pipe 221, when the pump body 212 works, the cooling liquid circulates in the inner part of the outer cylinder 12, and the heat is transferred through the spiral pipe 221 and the heat exchange pipe 222, and finally the heat is dissipated through the fins 22, and the heat dissipation fan 25 is used to accelerate the heat dissipation speed, and the cooling liquid heat in the inner part of the outer cylinder 12 is taken away, so that the inner part of the inner cylinder 11 is kept at a relatively stable temperature, and the purpose of rapid cooling is achieved. The spiral pipe 221 placed in the inner part of the outer cylinder 12 is used to increase the contact area and uniformity with the cooling liquid, so that when the cooling liquid is replaced, the cooling liquid at high temperature can be replaced by relatively low temperature cooling liquid in a relatively uniform manner, and the cooling effect between the inner cylinder 11 and the outer cylinder 12 is relatively uniform.

[0035] Unlike the conventional structure, the surface of the spiral pipe 221 is provided with holes, so that when circulating, the cooling liquid in the inner part of the spiral pipe 221 can directly exchange with the cooling liquid in the inner part of the outer cylinder 12. This way can directly replace the high-temperature medium with a relatively low-temperature medium, so as to quickly control the temperature of the outer cylinder 12, and in the case of intense reaction, this form can be used for rapid cooling treatment.

[0036] In an embodiment, please refer to Figures 1 to 3 , specifically, the pump body 212 is fixed to one side of the mounting bracket 21, the upper end face of the mounting bracket 21 is detachably fixed with the horizontal plate 211, the heat exchange pipe 222 is fixed to the inner side of the horizontal plate 211, and the upper end face of the shell 23 is provided with a detachable air vent 231.

[0037] The mounting bracket 21 is used to fix the entire heat exchange pipe 222, so as to ensure the position stability of the fins 22 connected thereto, the air vent 231 can blow air, so as to accelerate the air flow between the fins 22, and further accelerate the heat dissipation effect.

[0038] In an embodiment, please refer to Figure 1 and Figure 2 , specifically, the upper end face of the outer cylinder 12 is provided with a connecting piece 122, the lower end face of the mounting bracket 21 is attached to the connecting piece 122, the attachment surface is fixed by penetrating bolts and nuts, and the lower end face of the outer cylinder 12 is integrally formed with a plurality of supporting legs 123.

[0039] The connecting piece 122 is used to connect and fix the entire mounting bracket 21, and during the later equipment maintenance, the entire structure thereon can be disassembled, so as to clean and operate the shell 23, the heat exchange pipe 222 and other structures. The supporting legs 123 are used to support the entire reaction cylinder 10 and provide the bottom supporting force.

[0040] In order to further improve the heat dissipation structure of the fins 22, please refer toFigures 1 to 5 Specifically, the lower end of the shell 23 is fixed with a double-head motor 24, one end of the double-head motor 24 is connected to the rotation center of the heat dissipation fan 25, and the other end of the double-head motor 24 penetrates into the inside of the inner cylinder 11 and is fixed with the rotation center of the fan blade 14.

[0041] The double-head motor 24 provides power to ensure that the heat dissipation fan 25 can rotate, and the rotating heat dissipation fan 25 can generate airflow, which flows through the gap between the fins 22 to carry away heat, thereby achieving the heat dissipation effect. In order to further improve the structure, the other end of the double-head motor 24 is used to drive the fan blade 14 to rotate under the condition of reducing the complexity of the structure, specifically as follows:

[0042] The number of fan blades 14 is at least three, the center position of the three fan blades 14 is integrally formed with a shaft sleeve 144, the inside of the shaft sleeve 144 is penetrated by a middle shaft 15, one end of the middle shaft 15 is fixed with one end of the double-head motor 24, and the upper end surface of the inner cylinder 11 is provided with a sealing cover 13. The center position of the sealing cover 13 is provided with a gear box 132 connected with the double-head motor 24.

[0043] The purpose of the three fan blades 14 is to reduce the space between the adjacent two fan blades 14, to ensure that the material flowing into the inside can form an impact towards the liquid hole one 141 when disturbed, so as to ensure that the fluid can enter the inside of the fan blade and flow out from the other end of the liquid hole two 142.

[0044] The gear box 132 generally refers to a kind of structural member with a plurality of gears of different sizes arranged inside and meshing with each other. The gear box 132 generally has an output shaft and an input shaft. The output torque is adjusted between the gears to form the functions of deceleration and acceleration. In this embodiment, the gear box 132 is of the deceleration type. The output torque of one end of the double-head motor 24 is reduced by the gear box 132 to ensure that the fan blade 14 rotates at a relatively slow speed. Only the power end of the middle shaft 15 and the double-head motor 24 need to be fixed. In order to further improve the detachability of the structural member, please refer to Figures 1 to 5 , specifically as follows:

[0045] The double-head motor 24 includes a shaft one 241 and a shaft two 242. The shaft one 241 penetrates into the rotation center of the heat dissipation fan 25. The shaft two 242 has a transmission member two 243 inserted into one end thereof. The transmission member two 243 and the surface of the shaft two 242 are provided with a through hole 244. The inside of the through hole 244 is provided with a latch two 245. One end of the gear box 132 is provided with an input shaft 133. The surface of the input shaft 133 is provided with an insertion slot of the transmission member two 243.

[0046] The gear box 132 is connected by the shaft two 242, the input shaft 133 of the gear box 132 is fixed by the pin two 245, when the control of the fan blade 14 is needed, the pin two 245 is loosened, at this time the transmission member two 243 will produce the downward sliding from the inside of the shaft two 242, until inserted into the inside of the input shaft 133, when inserted, the transmission member two 243 is connected with the input shaft 133 of the gear box 132 and the shaft two 242 at the same time, the end of the transmission member two 243 needs to use the column with at least one ridge, so as to ensure the stable insertion of the downward movement and at the same time can limit the independent rotation of the transmission member two 243, through this design, the connection between the double head motor 24 and the gear box 132 can be disconnected, in addition, the connection state between the gear box 132 and the middle shaft 15 needs to be designed, to ensure the detachability between the middle shaft 15 and the gear box 132, as follows:

[0047] The transmission member one 151 is integrally formed on the end of the middle shaft 15 away from the inner cylinder 11, the gear box 132 is provided with an output shaft (not shown in the figure) on the end of the inner side of the inner cylinder 11, one end of the transmission member one 151 is inserted into the inside of the output shaft, the transmission member one 151 is fixed with the output shaft through the side penetrating pin one 152, the other end of the middle shaft 15 is detachably connected with the fixing member 16, the lower end surface of the shaft sleeve 144 is attached to the fixing member 16, and the upper end surface of the shaft sleeve 144 is attached to the output shaft.

[0048] The output shaft is connected by the transmission member one 151, the connection form is similar to the structure of the input shaft 133, the difference is that there is no need to adjust, so only the through pin one 152 is needed to fix to ensure the stability of the connection between the structural members, the same as the transmission member two 243, the end of the connection side of the transmission member one 151 is also a column with at least one ridge.

[0049] In addition, in order to further ensure the detachability of the structural members, please refer to Figure 1 And Figure 2 The sealing cover 13 includes two semicircular plate bodies, the lower end surface of the sealing cover 13 is integrally formed with the positioning ring 131, and the outer end surface of the positioning ring 131 is attached to the inner wall of the inner cylinder 11.

[0050] The gear box 132 is fixed in an insertion manner, a plurality of positioning shafts 134 are arranged on the surface of the sealing cover 13, and the bottom of the gear box 132 is also provided with a matched slot, when it is necessary to be fixed, the positioning shafts 134 are only inserted into the slot in the bottom of the gear box 132, so that stability is ensured, and the sealing cover 13 of the two plate bodies is fixed through the positioning ring 131, the positioning ring 131 is attached to the inner wall of the inner cylinder 11, when the surface of the sealing cover 13 generates pressure, the pressure is transmitted to the connection between the positioning ring 131 and the inner cylinder 11, a supporting effect is provided, the stability of the sealing cover 13 is ensured, and in addition, the connection between each position of the sealing cover 13 usually also needs to consider a certain sealing performance, therefore, a sealing gasket or the like is arranged to assist sealing.

[0051] In one embodiment, please refer to Figures 1 to 4 Specifically, the inner cylinder 11 is internally provided with a cylindrical reaction cavity 111, the bottom of the reaction cavity 111 is provided with a discharge port 17, the fan blade 14 is an arc-shaped rectangular plate body, the inner cavity 143 of the fan blade 14 is internally provided with an upper end face and a lower end face which are penetrated to the outside of the fan blade 14, and the liquid hole one 141 and the liquid hole two 142 are communicated with the inner cavity 143.

[0052] The fan blade 14 in the form of a rectangular plate body with a larger area is adopted to provide internal rotational disturbance, which is different from the traditional fan blade in the form of a twisted shape, has a larger contact area, can disturb a wider range, ensures sufficient contact of materials in the reaction cavity 111, and strengthens the disturbance effect of internal fluid.

[0053] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit it. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical idea of the present application should be covered by the claims of the present application.

Claims

1. A cooling device for veterinary drug production, characterized in that, include: The reaction cylinder (10) includes an inner cylinder (11) and an outer cylinder (12) attached to the outer wall of the inner cylinder (11). The inner cylinder (11) is provided with a rotatable fan blade (14). A liquid hole one (141) is provided on the concave side of the fan blade (14) near the rotation center. A liquid hole two (142) is provided on the convex side of the fan blade (14) near the inner wall of the inner cylinder (11). The liquid hole one (141) and the liquid hole two (142) are connected. Cooling assembly (20) for cooling the fluid inside the outer cylinder (12).

2. The cooling device for veterinary drug production according to claim 1, characterized in that: The outer cylinder (12) has a cylindrical cooling chamber (121) inside. The cooling assembly (20) includes a spiral tube (221). The spiral tube (221) is located inside the cooling chamber (121). One end of the spiral tube (221) is connected to a pump body (212). The other end of the pump body (212) is connected to one end of a heat exchange tube (222). The other end of the heat exchange tube (222) is connected to the other end of the spiral tube (221). A fin (22) is connected through the outside of the heat exchange tube (222). A cooling fan (25) is provided on one side of the fin (22). The cooling assembly (20) includes a mounting bracket (21). A housing (23) is provided inside the mounting bracket (21). The cooling fan (25) is located inside the housing (23). The air outlet direction of the cooling fan (25) is towards the gap between two adjacent fins (22).

3. The cooling device for veterinary drug production according to claim 2, characterized in that: The pump body (212) is fixed to one side of the mounting bracket (21), and a horizontal plate (211) is detachably fixed to the upper end face of the mounting bracket (21). The heat exchange tube (222) is fixed to the inner side of the horizontal plate (211), and a detachable vent (231) is provided on the upper end face of the housing (23).

4. The cooling device for veterinary drug production according to claim 2, characterized in that: The upper end face of the outer cylinder (12) is provided with a connector (122), the lower end face of the mounting bracket (21) is in contact with the connector (122), and the contact surface is fixed by the inserted bolts and nuts. The lower end face of the outer cylinder (12) is integrally formed with several support legs (123).

5. The cooling device for veterinary drug production according to claim 2, characterized in that: A dual-head motor (24) is fixed at the lower end of the housing (23). One end of the dual-head motor (24) is connected to the rotation center of the cooling fan (25), and the other end of the dual-head motor (24) passes through the interior of the inner cylinder (11) and is fixed to the rotation center of the fan blade (14).

6. The cooling device for veterinary drug production according to claim 5, characterized in that: The number of fan blades (14) is at least three. A bushing (144) is integrally formed at the center of the three fan blades (14). A central shaft (15) is provided through the bushing (144). One end of the central shaft (15) is fixed to one end of the dual-head motor (24). A sealing cover (13) is provided on the upper end face of the inner cylinder (11). A gearbox (132) connected to the dual-head motor (24) is provided at the center of the sealing cover (13).

7. The cooling device for veterinary drug production according to claim 6, characterized in that: The dual-head motor (24) includes a shaft one (241) and a shaft two (242). The shaft one (241) passes through the rotation center of the cooling fan (25). A transmission component two (243) is inserted into the end of the shaft two (242) away from the dual-head motor (24). A through hole (244) is opened on the surface of the transmission component two (243) and the shaft two (242). A pin two (245) is provided inside the through hole (244). An input shaft (133) is provided at one end of the gearbox (132). A slot for inserting the transmission component two (243) is opened on the surface of the input shaft (133).

8. The cooling device for veterinary drug production according to claim 6, characterized in that: The central shaft (15) has a transmission component (151) integrally formed at one end away from the inner cylinder (11). The gearbox (132) has an output shaft at one end located inside the inner cylinder (11). One end of the transmission component (151) is inserted into the inside of the output shaft. The transmission component (151) and the output shaft are fixed by a pin (152) inserted from the side. The other end of the central shaft (15) is detachably connected to a fixing component (16). The lower end face of the bushing (144) is attached to the fixing component (16), and the upper end face of the bushing (144) is attached to the output shaft.

9. The cooling device for veterinary drug production according to claim 6, characterized in that: The sealing cap (13) includes two semi-circular plates. The lower end face of the sealing cap (13) is integrally formed with a positioning ring (131), and the outer end face of the positioning ring (131) is attached to the inner wall of the inner cylinder (11).

10. The cooling device for veterinary drug production according to any one of claims 1-9, characterized in that: The inner cylinder (11) has a cylindrical reaction chamber (111) inside, and a discharge port (17) is provided at the bottom of the reaction chamber (111). The fan blade (14) is an arc-shaped rectangular plate. The fan blade (14) has an inner cavity (143) inside. The upper and lower surfaces of the inner cavity (143) extend to the outside of the fan blade (14). The liquid hole one (141) and the liquid hole two (142) are connected to the inner cavity (143).

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