CN-224221295-U - Liquid nitrogen granulation discharging device

Abstract

The utility model discloses a liquid nitrogen granulation discharging device which comprises a material conveying assembly and a refrigerating assembly, wherein the material conveying assembly comprises a discharging mechanism with an adjustable opening degree and a receiving platform arranged below the discharging mechanism, and the refrigerating assembly is in heat conduction contact with the receiving platform and is communicated with a liquid nitrogen source to cool the receiving platform. Simultaneously, the refrigerating component and the receiving platform form heat conduction contact and are communicated with a liquid nitrogen source, and the receiving platform can be continuously cooled, so that the problem of melting of materials in the conveying process is avoided.

Inventors

• YANG HAO
• WANG CHUNFENG
• LIU CHAO

Assignees

• 东富龙科技集团股份有限公司

Dates

Publication Date

20260512

Application Date

20241231

Claims (10)

1. 1. A liquid nitrogen granulation discharging device, characterized by comprising: The material conveying assembly comprises a discharging mechanism with an adjustable opening degree and a receiving platform arranged below the discharging mechanism; The refrigerating assembly is in heat conduction contact with the receiving platform and is communicated with a liquid nitrogen source to cool the receiving platform; the refrigerating assembly comprises a cooling coil assembly and a liquid nitrogen assembly; The cooling coil assembly comprises a coil and a throttling device, the coil is arranged at the bottom of the bearing platform, and the throttling device is arranged at the head end of the coil; the liquid nitrogen component is used for connecting the liquid nitrogen source and the cooling coil component.
2. 2. The liquid nitrogen granulation discharging device as claimed in claim 1, wherein said discharging mechanism comprises: The blanking hopper is provided with a double-layer hollow shell, and the double-layer hollow shell is internally filled with polyurethane foaming agent; The bushing plate is arranged at the bottom of the blanking hopper, and a plurality of leakage holes are formed in the bushing plate.
3. 3. The liquid nitrogen granulation discharging device as claimed in claim 2, wherein said discharging mechanism further comprises a handle and a scraper; The handle is fixedly arranged on two sides of the blanking hopper, and the scraping plate is arranged at the bottom of the blanking hopper.
4. 4. The liquid nitrogen granulation discharging device as claimed in claim 2, wherein the discharging mechanism is connected with the receiving platform through a fixing plate, a groove is arranged at the connecting position of the fixing plate, and the groove is clamped with the receiving platform.
5. 5. The liquid nitrogen prilling discharge device of claim 2, wherein the receiving platform comprises: A bracket comprising a strut; the platform body comprises two flat plates arranged on the supporting rod; the two ends of the sliding rail are fixed on the supporting rod between two of the sliding rails; The sliding mechanism comprises a connecting plate, one end of the connecting plate is fixedly connected with the blanking hopper, the other end of the connecting plate is provided with a roller, and the roller is in sliding connection with the sliding rail.
6. 6. The liquid nitrogen prilling discharge device of claim 5, wherein each of said flat plates has an upwardly folded edge, a tray groove is formed between two of said flat plates for placing a tray, and an upper surface of said tray groove is flush with an upper surface of said flat plates.
7. 7. The liquid nitrogen granulation discharging device according to claim 5, wherein a universal wheel is arranged at the bottom of said bracket; The bearing platform further comprises a water collecting tank, the water collecting tank is arranged at the bottom of the support, the width of the water collecting tank is larger than that of the flat plate, and a drain valve is arranged at the bottom of the water collecting tank.
8. 8. A liquid nitrogen granulation discharging device as claimed in claim 1, wherein, The throttling device is provided with a shell, and a cavity and a throttling hole are arranged in the shell; the liquid nitrogen assembly includes: the input pipeline is sequentially provided with a first cut-off valve, a safety valve, a pressure regulating valve and a second cut-off valve; the output pipeline is provided with a third cut-off valve; A first metal hose for connecting the second shut-off valve to the inlet end of the coil; And the second metal hose is used for connecting the outlet end of the coil pipe with the third cut-off valve.
9. 9. The liquid nitrogen granulation and discharge device as claimed in claim 8, wherein said liquid nitrogen assembly further comprises a pressure detection device disposed between said pressure regulating valve and said second shut-off valve, and a temperature detection device disposed on said receiving platform.
10. 10. The liquid nitrogen granulation discharging device as claimed in claim 8, wherein said throttling device comprises a liquid inlet pipe, an orifice and a liquid outlet pipe, the pipe diameter of said liquid inlet pipe is larger than the aperture of said orifice, and said chamber is used for providing a buffer zone for liquid nitrogen.

Description

Liquid nitrogen granulation discharging device Technical Field The utility model relates to the field of food and medicine packaging machinery equipment, in particular to a liquid nitrogen granulating and discharging device. Background The liquid nitrogen granulator is used as a high-efficiency and environment-friendly drug granule cryogenic treatment device and is widely applied to the pharmaceutical industry in China. The device can rapidly solidify and shape feed liquid particles by utilizing the low-temperature characteristic of liquid nitrogen, and provides convenience for the subsequent freeze-drying process. However, during the operation of a liquid nitrogen granulator, the link of collecting solid particles presents certain technical difficulties. At present, a conventional collecting mode is to use a tray to connect materials at a blanking port, but the frozen particles are fragile, have certain elasticity and good fluidity, so that deformation, bouncing and rolling easily occur in the collecting process, thereby causing material loss and difficult operation. In addition, frozen particles are easy to melt when falling on a normal temperature plane, so that the material loss and the cleaning difficulty are further increased. Therefore, how to improve the particle collection technology of the liquid nitrogen granulator, improve the collection efficiency and reduce the material loss becomes a problem to be solved urgently in the pharmaceutical industry. Disclosure of utility model The utility model aims to reduce the discharging loss of particles after liquid nitrogen granulation, prevent frozen particles from melting after falling into a platform and improve the loading rate of the particles. The utility model provides a liquid nitrogen granulation discharging device, which comprises: The material conveying assembly comprises a discharging mechanism with an adjustable opening degree and a receiving platform arranged below the discharging mechanism; The refrigerating assembly is in heat conduction contact with the bearing platform and is communicated with a liquid nitrogen source to cool the bearing platform. Further, the unloading mechanism includes: The blanking hopper is provided with a double-layer hollow shell, and the double-layer hollow shell is internally filled with polyurethane foaming agent; The bushing plate is arranged at the bottom of the blanking hopper, and a plurality of leakage holes are formed in the bushing plate. Further, the blanking mechanism further comprises a handle and a scraping plate; The handle is fixedly arranged on two sides of the blanking hopper, and the scraping plate is arranged at the bottom of the blanking hopper. Further, the blanking mechanism is connected with the receiving platform through a fixing plate, a groove is formed in the connecting position of the fixing plate, and the groove is clamped with the receiving platform. Further, the receiving platform comprises: A bracket comprising a strut; the platform body comprises two flat plates arranged on the supporting rod; the two ends of the sliding rail are fixed on the supporting rod between two of the sliding rails; The sliding mechanism comprises a connecting plate, one end of the connecting plate is fixedly connected with the blanking hopper, the other end of the connecting plate is provided with a roller, and the roller is in sliding connection with the sliding rail. Further, each flat plate is provided with an edge folded upwards, a tray groove for placing a tray is formed between the two flat plates, and the upper surface of the tray groove is flush with the upper surface of the flat plates. Furthermore, universal wheels are arranged at the bottom of the bracket; The bearing platform further comprises a water collecting tank, the water collecting tank is arranged at the bottom of the support, the width of the water collecting tank is larger than that of the flat plate, and a drain valve is arranged at the bottom of the water collecting tank. Further, the refrigeration assembly comprises a cooling coil assembly and a liquid nitrogen assembly; The cooling coil assembly comprises a coil and a throttling device, the coil is arranged at the bottom of the bearing platform, the throttling device is arranged at the head end of the coil, the throttling device is provided with a shell, and a cavity and a throttling hole are arranged in the shell; the liquid nitrogen subassembly is used for connecting the liquid nitrogen source with cooling coil subassembly includes: the input pipeline is sequentially provided with a first cut-off valve, a safety valve, a pressure regulating valve and a second cut-off valve; the output pipeline is provided with a third cut-off valve; A first metal hose for connecting the second shut-off valve to the inlet end of the coil; And the second metal hose is used for connecting the outlet end of the coil pipe with the third cut-off valve. Further, the liquid nitrogen assembly further comp