Stirring heat preservation type feeding device

Abstract

The utility model relates to a stirring heat preservation type feeding device which comprises a hopper and a stirring mechanism and further comprises a steam conveying pipe and an exhaust pipe, the hopper comprises a feeding port and a conical wall with an interlayer, the steam conveying pipe is used for supplying steam into the interlayer, and the exhaust pipe is communicated with the interlayer and used for exhausting cooled or condensed steam.

Description

Technical Field

[0001] This utility model relates to a feeding device, and more particularly to a stirring and heat-insulating feeding device. Background Technology

[0002] The concentrated medicinal liquid of classic donkey-hide gelatin formulas is highly viscous and needs to be heated to a certain temperature before being fed into the conveyor belt of a vacuum belt dryer for drying. Because the feeding device of existing laboratory-scale drying equipment lacks stirring, filtering, and heat preservation functions, it is necessary to first heat the liquid with an induction cooker and then intermittently pour it in through a handheld sieve. Heating the liquid to a certain temperature via the induction cooker easily leads to scorching, and the liquid's cooling during feeding causes it to become viscous and clog the feeding port. This results in poor compatibility with commercial-scale production drying equipment, making it impossible to accurately transfer and reproduce known knowledge and experience in the laboratory and production workshop. Summary of the Invention

[0003] To solve the above problems, this utility model provides a stirring and heat-insulating feeding device, including a hopper, a stirring mechanism, a steam conveying pipe, and an exhaust pipe. The hopper includes a feed inlet and a conical wall with a jacket. The steam conveying pipe is used to supply steam into the jacket. The exhaust pipe is connected to the jacket and is used to discharge the cooled or condensed steam.

[0004] Furthermore, the hopper also includes a sealing cover, which is located above the conical wall, and the feed inlet is disposed on the sealing cover.

[0005] Furthermore, the stirring mechanism includes a stirring motor, a stirring rod, and a temperature sensor. The stirring motor is connected to the stirring rod, which is located outside the sealing cover. The stirring rod is located inside the hopper, and stirring blades are provided around the stirring rod. The temperature sensor is located at the top of the stirring rod and is used to measure the temperature of the liquid medicine in the hopper.

[0006] Furthermore, the feeding device also includes a conveying device, which includes a conveying motor, a screw auger, and a conveying pipe. The conveying pipe is arranged below the hopper to receive the liquid medicine discharged from the hopper. The screw auger is located inside the conveying pipe, and the conveying motor drives the screw auger to rotate, thereby discharging the liquid medicine from the conveying pipe.

[0007] Furthermore, a filter screen is installed at the outlet of the conveying pipeline.

[0008] Furthermore, the feeding device also includes a control system, which includes a PLC controller and a steam pressure regulating valve. The steam pressure regulating valve is installed on the steam conveying pipe. The PLC controller controls the opening of the steam pressure regulating valve according to the temperature of the temperature sensor, thereby regulating the steam flow and controlling the temperature inside the hopper.

[0009] Furthermore, the control system also includes a pressure sensor located downstream of the delivery pipeline to monitor the discharge pressure of the liquid medicine.

[0010] This invention relates to a stirring and heat-insulating feeding device that heats the medicinal liquid using jacketed steam while maintaining a constant temperature to prevent it from becoming too viscous due to cooling during the feeding process. This heating method is more uniform than that of an induction cooker, avoiding scorching caused by localized overheating. The hopper is equipped with stirring devices that rotate continuously under the drive of a motor, constantly agitating the medicinal liquid. This not only prevents the liquid from settling or adhering to the bottom of the container during heating but also ensures the uniformity and flowability of the liquid. This solves the problems of scorching during the heating process affecting the composition of the medicinal liquid and blockage at the feeding port due to cooling during the feeding process. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of a stirring and heat-insulating feed hopper. Detailed Implementation

[0012] See Figure 1 The mixing and heat-insulating feeding device includes a hopper, a mixing mechanism, a steam conveying pipe 1, an exhaust pipe 7, a conveying device, and a control system. The hopper includes a feed inlet 3, a conical wall 15 with a jacket, and a sealing cover 13. The sealing cover 13 is located above the conical wall 15, and the feed inlet 3 is set on the sealing cover 13.

[0013] The stirring mechanism includes a stirring motor 2, a stirring rod 4, and a temperature sensor 6. The stirring motor 2 is connected to the stirring rod 4. The stirring motor 2 is located outside the sealing cover 13. The stirring rod 4 is located inside the hopper, and stirring blades are provided around the stirring rod 4. The temperature sensor 6 is located at the top of the stirring rod 4 and is used to measure the temperature of the liquid medicine in the hopper.

[0014] The steam delivery pipe 1 is used to supply steam into the interlayer of the conical wall 15. The interlayer of the conical wall 15 is also connected to an exhaust pipe 7, which is used to discharge the cooled or condensed steam.

[0015] The conveying device includes a conveying motor 10, a screw auger 12, and a conveying pipe 9. The conveying pipe is arranged below the hopper to receive the liquid medicine discharged from the hopper. The screw auger 12 is located inside the conveying pipe. The conveying motor drives the screw auger 12 to rotate, thereby discharging the liquid medicine from the conveying pipe 9 and sending it to the vacuum belt dryer. A filter screen 16 is also provided at the outlet of the conveying pipe.

[0016] The control system includes a PLC controller 11, a pneumatic actuator 5, a steam pressure regulating valve 14, a pressure sensor 8, and wiring 16. The steam pressure regulating valve 14 is installed on the steam delivery pipe 1 and is controlled by the pneumatic actuator 5. The PLC controller is connected to a temperature sensor 6 to monitor the temperature of the liquid medicine in real time. Based on the deviation between the set value and the actual temperature, the PLC controller calculates the required valve opening and sends a command to the pneumatic actuator 5 to adjust the steam pressure regulating valve 14, thereby changing the steam flow rate.

[0017] The pressure sensor 8 is located downstream of the conveying pipe 9 to monitor the discharge pressure of the liquid medicine. When the pressure exceeds the set value, the PLC controller stops the operation of the conveying motor 10 and replaces the filter screen 16.

[0018] In practical applications, the liquid medicine enters the hopper through the feed inlet 3, is stirred by the stirring mechanism, and the steam in the jacket heats the liquid medicine while maintaining a certain temperature. Finally, it is conveyed by the conveying device to the conveyor belt in the vacuum belt dryer cavity for drying.

[0019] This invention utilizes a stirred and insulated feeding hopper to heat the medicinal liquid using jacketed steam while maintaining a constant temperature, ensuring the liquid does not become excessively viscous due to cooling during the feeding process. This heating method is more uniform than that of an induction cooker, avoiding scorching caused by localized overheating. The hopper is equipped with a stirring device that rotates continuously under the drive of a motor, constantly agitating the medicinal liquid. This not only prevents the liquid from settling or adhering to the bottom of the container during heating but also ensures the uniformity and flowability of the liquid. It solves the problems of scorching during the heating process affecting the liquid composition and blockage at the feeding port due to cooling during the feeding process. It is more compatible with commercial-scale drying equipment, achieving accurate transfer of key process parameters between pilot-scale and commercial-scale production, minimizing costs for both the sender and receiver, and improving the existing technological level.

[0020] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A stirring and heat-insulating feeding device, comprising a hopper and a stirring mechanism, characterized in that, It also includes a steam conveying pipe (1) and an exhaust pipe (7). The hopper includes a feed inlet (3) and a conical wall (15) with a jacket. The steam conveying pipe (1) is used to supply steam into the jacket. The exhaust pipe (7) is connected to the jacket and is used to discharge the cooled or condensed steam.

2. The feeding device according to claim 1, characterized in that, The hopper also includes a sealing cover (13), which is located above the conical wall (15), and the feed inlet (3) is disposed on the sealing cover (13).

3. The feeding device according to claim 2, characterized in that, The stirring mechanism includes a stirring motor (2), a stirring rod (4), and a temperature sensor (6). The stirring motor (2) is connected to the stirring rod (4). The stirring motor (2) is located outside the sealing cover (13). The stirring rod (4) is located inside the hopper, and stirring blades are provided around the stirring rod (4). The temperature sensor (6) is located at the top of the stirring rod (4) and is used to measure the temperature of the liquid medicine in the hopper.

4. The feeding device according to claim 3, characterized in that, The feeding device also includes a conveying device, which includes a conveying motor (10), a screw auger (12), and a conveying pipe (9). The conveying pipe (9) is arranged below the hopper to receive the liquid medicine discharged from the hopper. The screw auger (12) is located inside the conveying pipe (9). The conveying motor (10) drives the screw auger (12) to rotate, thereby discharging the liquid medicine from the conveying pipe (9).

5. The feeding device according to claim 4, characterized in that, The outlet of the conveying pipe (9) is also equipped with a filter screen (16).

6. The feeding device according to claim 4, characterized in that, The feeding device also includes a control system, which includes a PLC controller (11) and a steam pressure regulating valve (14). The steam pressure regulating valve (14) is installed on the steam conveying pipe (1). The PLC controller controls the opening of the steam pressure regulating valve (14) according to the temperature of the temperature sensor (6), thereby regulating the steam flow and controlling the temperature inside the hopper.

7. The feeding device according to claim 6, characterized in that, The control system also includes a pressure sensor (8), which is located downstream of the delivery pipe (9) and is used to monitor the discharge pressure of the liquid medicine.

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