Wet granulation drying line

Abstract

The utility model relates to the technical field of dryers, in particular to a wet granulation drying line, which comprises a heating unit, a drying unit and a vacuumizing unit which are sequentially connected through pipelines and are jointly mounted on the same base. The drying unit comprises a raw material bin, a wet granulator, a double-cone vacuum dryer, a finished product bin and a finished product feeder which are sequentially connected through a pipeline; wherein 2-3 vacuum covers are arranged in the double-cone vacuum drying machine. According to the utility model, heating, drying and vacuumizing are integrated together, so that the purchase cost of equipment is saved, and the energy consumption and the maintenance and use cost are reduced; due to the reasonable arrangement of circuits, the material loss is reduced, and the product yield is improved; the occupied space of equipment is reduced, a clean area is increased, and the space utilization rate is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of dryers, in particular to a wet granulation drying line. Background Art

[0002] Existing pharmaceutical production equipment has a single function. Processes such as granulation and drying need to be completed by multiple pieces of equipment such as wet granulators and dryers. Equipment maintenance, procurement costs are high, energy consumption is high, and there will be residues when materials are transferred between different equipment, resulting in high material losses.

[0003] Existing patent CN117282344A discloses an explosion-proof multi-functional granulation, drying and sizing integrated machine, which includes an upper box body, a lower box body, a cylinder head, a material cylinder, a stirring system, a granulation system and a lifting device, integrating the three processes of granulation, drying and sizing into one piece of equipment.

[0004] The above technology has the following defects: The layout of the production line is still relatively messy, making the environment crowded, and a vacuum pumping module needs to be installed separately. Content of the Utility Model

[0005] The purpose of the utility model is to provide a wet granulation drying line to solve the problems existing in the prior art.

[0006] To solve the above technical problems, the utility model provides the following technical solution: A wet granulation drying line includes a heating unit, a drying unit and a vacuum pumping unit connected in sequence through pipelines, and the heating unit, the drying unit and the vacuum pumping unit are jointly installed on the same base.

[0007] Further, the drying unit includes a raw material bin, a wet granulator, a double-cone vacuum dryer, a finished product bin and a finished product loading machine connected in sequence through pipelines.

[0008] Further, there are 2 to 3 vacuum covers inside the double-cone vacuum dryer.

[0009] Further, the heating unit includes a heating water tank and a hot water pump connected in sequence; an automatic water replenishment interface is provided on one side of the heating water tank, and several heating rods are provided inside the heating water tank; a water outlet and a water extraction pipeline are provided at the bottom of the heating water tank, the middle section of the water extraction pipeline is communicated with the hot water pump, and the end of the water extraction pipeline is communicated to the double-cone vacuum dryer; a sewage discharge pipe is also provided at the bottom of the heating water tank.

[0010] Further, a return pipe is also provided on one side of the heating water tank close to the double-cone vacuum dryer, and the return pipe is communicated with the water inlet pipeline of the double-cone vacuum dryer.

[0011] Further, the vacuum pumping unit includes a buffer tank, a vacuum pump and a cooling water tank connected in sequence through pipelines.

[0012] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows: By integrating heating, drying, and vacuum pumping into one device, the present utility model saves the equipment procurement cost, reduces energy consumption, maintenance, and usage costs; due to the reasonable circuit arrangement, material loss is reduced, and the product yield is improved; the equipment footprint is reduced, the clean area is increased, and the space utilization rate is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0014] Figure 1 is a schematic structural diagram of the drying line of Embodiment 1.

[0015] In the figure, 1 is a heating unit; 11 is a heating water tank; 111 is a heating rod; 112 is a water extraction pipeline; 113 is a return pipe; 12 is a hot water pump; 2 is a drying unit; 21 is a raw material bin; 22 is a wet granulator; 23 is a double-cone vacuum dryer; 231 is a vacuum hood; 24 is a finished product bin; 25 is a finished product loader; 3 is a vacuum pumping unit; 31 is a buffer tank; 32 is a vacuum pump; 33 is a cooling water tank. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0017] Embodiment 1

[0018] As Figure 1 shown, Embodiment 1 of the present disclosure discloses a wet granulation drying line, including a heating unit 1, a drying unit 2, and a vacuum pumping unit 3 connected in sequence through pipelines. In this embodiment, the heating unit 1, the drying unit 2, and the vacuum pumping unit 3 are jointly installed on the same base, standardizing the equipment installation area, reducing the equipment footprint, and improving the cleanliness; and saving the customer's equipment procurement cost, reducing energy consumption, maintenance, and usage costs.

[0019] Based on practical applications, the drying unit 2 includes a raw material bin 21, a wet granulator 22, a double-cone vacuum dryer 23, a finished product bin 24, and a finished product feeder 25 that are connected in sequence through pipelines. The discharge port of the raw material bin 21 is connected to the feed port of the wet granulator 22, enabling automatic feeding. The discharge port of the wet granulator 22 is connected to the feed port of the double-cone vacuum dryer 23, enabling automatic feeding. There are 2 to 3 vacuum covers 231 inside the double-cone vacuum dryer 23. The discharge port of the double-cone vacuum dryer 23 is connected to the feed port of the finished product bin. At the same time, another branch pipeline installed at the feed port of the finished product bin is connected to the feed port of the finished product feeder. This embodiment realizes the connection of each module with the shortest line, reduces the material loss during the intermediate turnover process, and improves the product yield.

[0020] Based on practical applications, the heating unit 1 includes a heating water tank 11 and a hot water pump 12 that are connected in sequence. One side of the heating water tank 11 is provided with an automatic water replenishment interface for automatic water replenishment. There are several heating rods 111 inside the heating water tank 11 to heat the added water. The bottom of the heating water tank 11 is provided with a water outlet, and a water extraction pipeline 112 is installed at the water outlet. The hot water pump 12 is connected to the middle section of the water extraction pipeline 112, and the end of the water extraction pipeline 112 is connected to the water inlet pipeline of the double-cone vacuum dryer 23. Thus, hot water is pumped from the heating water tank 11 into the double-cone vacuum dryer 23. To drain the water for cleaning, a sewage pipe (not shown in the figure) is also provided at the bottom of the heating water tank 11. One side of the heating water tank 11 close to the double-cone vacuum dryer 23 is also provided with a return pipe 113, and the return pipe 113 is communicated with the water inlet pipeline of the double-cone vacuum dryer 23.

[0021] Based on practical applications, the vacuum pumping unit 3 includes a buffer tank 31, a vacuum pump 32, and a cooling water tank 33 that are connected in sequence through pipelines. The pipeline at the water outlet of the double-cone vacuum dryer 23 is connected to the inlet of the buffer tank 31, and a temperature detector and a pressure gauge are also provided on this pipeline. The buffer tank 31 is used to store and balance the pressure of the hot liquid discharged from the double-cone vacuum dryer 23. The outlet of the buffer tank 31 is connected to the vacuum pump 32, and the extracted hot liquid is discharged into the cooling water tank 33.

[0022] The operating principle of this embodiment is as follows: During operation, the vacuum pump 32 is started to form a suction airflow inside the wet granulator 22 and the double-cone vacuum dryer 23, so that the material passing through the wet granulator 22 is automatically sucked into the double-cone vacuum dryer 23 under the carrying of the suction airflow. At the same time, hot water is pumped from the heating water tank 11 into the jacket of the double-cone vacuum dryer 23 by the hot water pump 12. The heat contacts the material through the inner wall of the double-cone vacuum dryer 23, and the water vapor evaporated by the material after absorbing heat is pumped away by the vacuum pumping unit 3. The dried material is collected by the finished product bin 24 and automatically fed to the next device through the finished product feeder 25.

[0023] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A wet granulation drying line, characterized in that: It comprises a heating unit (1), a drying unit (2) and a vacuum unit (3) which are connected in sequence through pipelines, and the heating unit (1), the drying unit (2) and the vacuum unit (3) are installed together on the same base.

2. The wet granulation drying line according to claim 1, characterized in that: The drying unit (2) comprises a raw material bin (21), a wet granulator (22), a double-cone vacuum dryer (23), a finished product bin (24), and a finished product loader (25) which are sequentially connected via pipelines.

3. The wet granulation drying line according to claim 2, characterized in that: The double-cone vacuum dryer (23) is provided with 2 to 3 vacuum covers (231) inside.

4. The wet granulation drying line according to claim 3, characterized in that: The heating unit (1) comprises a heating water tank (11) and a hot water pump (12) which are connected in sequence; an automatic water supply interface is provided on one side of the heating water tank (11); a plurality of heating rods (111) are provided inside the heating water tank (11); a water outlet and a water pumping pipeline (112) are provided at the bottom of the heating water tank (11); the hot water pump (12) is connected to the middle section of the water pumping pipeline (112); the end of the water pumping pipeline (112) is connected to a double-cone vacuum dryer (23); and a sewage discharge pipe is also provided at the bottom of the heating water tank (11).

5. The wet granulation drying line according to claim 4, characterized in that: A reflux pipe (113) is also provided on a side of the heating water tank (11) close to the double-cone vacuum dryer (23); the reflux pipe (113) is in communication with a water inlet pipeline of the double-cone vacuum dryer (23).

6. The wet granulation drying line according to claim 5, characterized in that: The vacuum unit (3) comprises a buffer tank (31), a vacuum pump (32) and a cooling water tank (33) which are connected in sequence via pipelines.

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