Water dropper device for low-temperature granulation

Abstract

The utility model relates to the technical field of biological granulation, in particular to a water dropper device for low-temperature granulation. Comprising a material receiving pipe, one end of the material receiving pipe is connected with a feeding assembly, the other end of the material receiving pipe is connected with a liquid dropping disc assembly, the liquid dropping disc assembly comprises a dropping disc upper cover, a dropping disc and a dropper, the inner side of the dropping disc upper cover is connected with a distribution disc through a connecting piece, the distribution disc is communicated with the material receiving pipe, and the center of the distribution disc is aligned with the center of the material receiving pipe. The lower end of the outer edge of the drip tray upper cover is connected with the drip tray through a bolt assembly, an arc-shaped face is arranged in the center of the drip tray, a plurality of circumferentially-arranged discharging holes are formed in the arc-shaped face, and the interiors of the discharging holes are connected with drippers through thread structures. Compared with the prior art, the feeding device is simple in structure, easy to machine, good in sealing performance and convenient to clean, the feeding speed is controlled through a peristaltic pump of the feeding assembly, the feeding accuracy is guaranteed, and therefore the product quality is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of biogranulation technology, specifically a dripping device for low-temperature granulation. Background Technology

[0002] To further enrich product offerings and improve the quality of specific products, some probiotic products have adopted cryogenic granulation in recent years. The core components used for granulation, such as the dropper and its connecting parts, are mostly made of food-grade or higher stainless steel.

[0003] Chinese patent CN 212370110U discloses a dropper device for liquid nitrogen granulation, which forms droplets by diverting the flow to slow down the flow rate, and can efficiently and conveniently produce cryogenic granulated particles according to a specified particle diameter. However, in actual use, it was found that: 1. The hollowed-out distribution disc structure is difficult to manufacture and relatively difficult to clean. 2. The flow rate of the liquid is controlled by a manual valve, resulting in relatively coarse control precision and difficulty in precise operation. 3. The stainless steel dropper is easily frozen by the refrigerant, leading to operation failure. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, this utility model provides a dripping device for low-temperature granulation.

[0005] To achieve the above objectives, a dripping device for low-temperature granulation is designed, comprising a receiving pipe, one end of which is connected to a feeding assembly, and the other end of which is connected to a dripping tray assembly. The dripping tray assembly includes a dripping tray cover, a dripping tray, and dripping heads. The inner side of the dripping tray cover is connected to a distributing disc via a connector. The distributing disc communicates with the receiving pipe, and the center of the distributing disc is aligned with the center of the receiving pipe. The lower outer edge of the dripping tray cover is connected to the dripping tray via a bolt assembly. The center of the dripping tray has an arc-shaped surface with several circumferentially arranged discharge holes. The discharge holes are connected to the dripping heads via threaded structures.

[0006] The inner surface of the distribution disk has a smooth transition structure that is thicker at the center and thinner around the edges.

[0007] The outer edge of the drip tray cover is provided with a through hole, and the outer edge of the drip tray is provided with a countersunk hole that matches the position of the through hole. Bolts pass through the through hole and the countersunk hole respectively to connect the drip tray cover and the drip tray, and are tightened by nuts.

[0008] The lower end face of the countersunk hole is higher than the lower edge of the drip tray, forming a countersunk hole protrusion. The height of the countersunk hole protrusion above the lower edge of the drip tray is greater than the height of the dripper head above the lower edge of the drip tray after installation.

[0009] The bolt assembly is made of stainless steel, and the bolts are preferably countersunk hexagonal socket head cap screws; the depth of the large diameter portion of the countersunk hole is higher than the height of the total thread of the bolt head or nut in the bolt assembly.

[0010] The feed hole is provided with an internal thread, and the outer side of the upper end of the dripper is provided with an external thread that matches the internal thread. The sum of the lengths of the external thread and the external relief groove is greater than the sum of the lengths of the internal thread and the internal relief groove.

[0011] The drip tray and drip head are made of polytetrafluoroethylene.

[0012] The surface of the drip tray cover is provided with several mounting holes.

[0013] The feeding assembly includes a first feeding pipe, a second feeding pipe, a peristaltic pump hose, and a peristaltic pump. The upper end of the receiving pipe is connected to the outlet of the second feeding pipe. The inlet of the second feeding pipe is connected to the outlet of the peristaltic pump hose through a second pagoda-shaped connector. The peristaltic pump hose is equipped with a peristaltic pump. The inlet of the peristaltic pump hose is connected to the first feeding pipe through a first pagoda-shaped connector.

[0014] The feed pipe 1 is equipped with a material main valve 1 and a bypass valve 1, and the feed pipe 2 is equipped with a material main valve 2 and a bypass valve 2.

[0015] Compared with the prior art, this utility model has a simple structure, is easy to process, has good sealing performance, and is easy to clean. The feeding speed is controlled by the peristaltic pump of the feeding component to ensure the accuracy of feeding, thereby ensuring product quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the structure of the drip tray assembly of this utility model.

[0018] Figure 3 This is a schematic diagram of the structure of the dripper of this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the external thread of the dripper and the internal thread of the feed hole of this utility model.

[0020] Figure 5 This is a top view of the drip tray cover of this utility model. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] like Figures 1 to 3As shown, one end of the receiving pipe 7-1 is connected to the feeding assembly, and the other end is connected to the drip tray assembly 7. The drip tray assembly 7 includes a drip tray cover 7-4, a drip tray 7-6, and drippers 7-10. The inner side of the drip tray cover 7-4 is connected to a distribution disc 7-3 via a connector 7-2. The distribution disc 7-3 communicates with the receiving pipe 7-1, and the center of the distribution disc 7-3 is aligned with the center of the receiving pipe 7-1. The lower outer edge of the drip tray cover 7-4 is connected to the drip tray 7-6 via a bolt assembly. The center of the drip tray 7-6 has an arc-shaped surface 7-11, on which several circumferentially arranged discharge holes 7-8 are provided. The discharge holes 7-8 are connected to the drippers 7-10 via a threaded structure. The center of the arc-shaped surface 7-11 is the lowest, which is beneficial to the final flow of the material, allowing the item to enter the next process as much as possible.

[0023] The inner surface of the distribution disk 7-3 has a smooth transition structure that is thicker in the center and thinner around the edges, which allows the liquid flowing out of the nozzle 7-1 to quickly disperse in all directions.

[0024] The outer edge of the drip tray cover 7-4 is provided with a through hole 7-5, and the outer edge of the drip tray 7-6 is provided with a countersunk hole 7-7 that matches the position of the through hole 7-5. Bolts pass through the through hole 7-5 and the countersunk hole 7-7 respectively to connect the drip tray cover 7-4 and the drip tray 7-6, and are tightened with nuts.

[0025] The lower end face of the countersunk hole 7-7 is higher than the lower edge base surface of the drip tray 7-6, forming a countersunk hole protrusion 7-12. The height of the countersunk hole protrusion 7-12 above the lower edge base surface of the drip tray 7-6 should be greater than the height of the dripper head 7-10 above the lower edge base surface of the drip tray 7-6 after installation, so that the countersunk hole protrusion 7-12 can effectively protect the dripper head 7-10.

[0026] The bolt assembly is made of stainless steel, with countersunk head socket head cap screws being the preferred choice. The depth of the large diameter portion of the countersunk hole 7-7 is greater than the height of the total thread of the bolt head or nut in the bolt assembly, reducing the contact area between the bolt assembly and the connected parts, reducing heat transfer, and preventing the parts from freezing due to low temperatures.

[0027] like Figure 4 As shown, the feed hole 7-8 is provided with an internal thread 7-13, and the upper outer side of the dripper 7-10 is provided with an external thread 7-14 that mates with the internal thread 7-13.

[0028] During the machining of internal and external threads, internal relief grooves 7-16 and external relief grooves 7-15 are respectively left. In this invention, the sum of the lengths of the external thread 7-14 and the external relief groove 7-15 is greater than the sum of the lengths of the internal thread 7-13 and the internal relief groove 7-16. This ensures that when the dripper 7-9 is tightened, the external thread end face of the dripper 7-10 has good contact and sealing with the internal thread end face of the feed hole 7-8, thus improving the sealing performance.

[0029] Currently, stainless steel is commonly used in pelletizing dripping devices due to its excellent thermal conductivity. However, the cryogenic pelleting process involves a large amount of refrigerant, and improper operation can easily cause stainless steel components such as dripping heads to freeze, leading to operational failure. In this invention, the dripping tray 7-6 and dripping heads 7-10 are made of polytetrafluoroethylene (PTFE). Utilizing PTFE's poor thermal conductivity, parts that would otherwise easily come into contact with the refrigerant or refrigerant container are replaced with PTFE, reducing the risk of material freezing due to excessive heat transfer during production. Furthermore, PTFE has a low coefficient of friction and excellent self-lubricating properties, reducing the need for sealing materials and simplifying processing. Additionally, PTFE's hydrophobic properties reduce the likelihood of material residue on the components, thus minimizing residue and increasing finished product yield.

[0030] like Figure 5 As shown, the surface of the drip tray cover 7-4 is provided with several mounting holes 7-9. In actual use, the mounting holes 7-9 facilitate the connection of the drip tray assembly 7 to external production equipment via fasteners. Typically, the drip tray cover 7-4 is placed horizontally on the flange of the corresponding equipment and then connected with fasteners.

[0031] The feeding assembly includes a feed pipe 1, a feed pipe 2, a peristaltic pump hose 3, and a peristaltic pump 4. The upper end of the receiving pipe 7-1 is connected to the outlet of the feed pipe 2. The inlet of the feed pipe 2 is connected to the outlet of the peristaltic pump hose 3 via a pagoda-head connector 2 5. The peristaltic pump 4 is mounted on the peristaltic pump hose 3, and the inlet of the peristaltic pump hose 3 is connected to the feed pipe 1 via a pagoda-head connector 1 6. The feed pipe 1 is equipped with a material main valve 8 and a bypass valve 9, and the feed pipe 2 is equipped with a material main valve 2 10 and a bypass valve 2 11.

[0032] In practical use, the peristaltic pump 4 is selected with digital display speed adjustment function, which makes flow control more convenient and accurate.

[0033] When this utility model is in use, material main valve 8 and material main valve 10 are opened, and bypass valve 9 and bypass valve 11 are closed. The material speed is controlled by peristaltic pump 4. The material enters the dripping plate assembly 7 and drips out from dripper 7-10 to obtain granulation.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes made based on the key design features of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A dripping device for low-temperature granulation, comprising a receiving pipe, characterized in that: One end of the receiving pipe (7-1) is connected to the feeding assembly, and the other end of the receiving pipe (7-1) is connected to the dripping plate assembly (7). The dripping plate assembly (7) includes a dripping plate cover (7-4), a dripping plate (7-6), and a dripper (7-10). The inner side of the dripping plate cover (7-4) is connected to the distribution disc (7-3) through a connector (7-2). The distribution disc (7-3) is connected to the receiving pipe (7-1), and the center of the distribution disc (7-3) is aligned with the center of the receiving pipe (7-1). The lower end of the outer edge of the dripping plate cover (7-4) is connected to the dripping plate (7-6) through a bolt assembly. The center of the dripping plate (7-6) is provided with an arc-shaped surface (7-11). The arc-shaped surface (7-11) is provided with several discharge holes (7-8) arranged in a circular shape. The discharge holes (7-8) are connected to the dripper (7-10) through a threaded structure.

2. The dripping device for low-temperature granulation according to claim 1, characterized in that: The inner surface of the distribution disk (7-3) has a smooth transition structure that is thicker in the center and thinner around the edges.

3. The dripping device for low-temperature granulation according to claim 1, characterized in that: The outer edge of the drip tray cover (7-4) is provided with a through hole (7-5), and the outer edge of the drip tray (7-6) is provided with a countersunk hole (7-7) that matches the position of the through hole (7-5). Bolts pass through the through hole (7-5) and the countersunk hole (7-7) respectively to connect the drip tray cover (7-4) and the drip tray (7-6), and are tightened by nuts.

4. The dripping device for low-temperature granulation according to claim 3, characterized in that: The lower end face of the countersunk hole (7-7) is higher than the lower edge base surface of the drip tray (7-6), forming a countersunk hole protrusion (7-12), and the height of the countersunk hole protrusion (7-12) above the lower edge base surface of the drip tray (7-6) is greater than the height of the dripper head (7-10) above the lower edge base surface of the drip tray (7-6) after installation.

5. The dripping device for low-temperature granulation according to claim 1, characterized in that: The bolt assembly is made of stainless steel, and the bolts are countersunk hexagonal socket head cap screws; the depth of the large diameter portion of the countersunk hole (7-7) is higher than the height of the total thread of the bolt head or nut in the bolt assembly.

6. The dripping device for low-temperature granulation according to claim 1, characterized in that: The feed hole (7-8) is provided with an internal thread (7-13), and the upper outer side of the drip head (7-10) is provided with an external thread (7-14) that matches the internal thread (7-13). The sum of the lengths of the external thread (7-14) and the external relief groove (7-15) is greater than the sum of the lengths of the internal thread (7-13) and the internal relief groove (7-16).

7. The dripping device for low-temperature granulation according to claim 1, characterized in that: The drip tray (7-6) and drip head (7-10) are made of polytetrafluoroethylene.

8. The dripping device for low-temperature granulation according to claim 1, characterized in that: The surface of the drip tray cover (7-4) is provided with several mounting holes (7-9).

9. A dripping device for low-temperature granulation according to claim 1, characterized in that: The feeding assembly includes a first feeding pipe (1), a second feeding pipe (2), a peristaltic pump hose (3), and a peristaltic pump (4). The upper end of the receiving pipe (7-1) is connected to the outlet of the second feeding pipe (2). The inlet of the second feeding pipe (2) is connected to the outlet of the peristaltic pump hose (3) through a second pagoda-head connector (5). The peristaltic pump hose (3) is equipped with a peristaltic pump (4). The inlet of the peristaltic pump hose (3) is connected to the first feeding pipe (1) through a first pagoda-head connector (6).

10. A dripping device for low-temperature granulation according to claim 9, characterized in that: The feed pipe 1 (1) is equipped with a material main valve 1 (8) and a bypass valve 1 (9), and the feed pipe 2 (2) is equipped with a material main valve 2 (10) and a bypass valve 2 (11).

Images