Material preparation system to prevent hot gas backflow

Abstract

This invention discloses a material preparation system for preventing hot gas backflow, comprising a first material preparation tank with an internal stirring device, a feeding mechanism connected to the first material preparation tank, and a first heating mechanism. A heat-insulating connection mechanism is provided between the feeding mechanism and the first material preparation tank. The heat-insulating connection mechanism includes a feed valve, a heat insulation pipe, and an air blowing device that prevents hot gas from entering the feeding mechanism, connected in sequence. The feed valve is located at the feed inlet of the first material preparation tank, and the feeding mechanism is connected to the air blowing device. This material preparation system has advantages such as the ability to feed materials while operating, improved production efficiency, and reduced production costs.

Description

Technical Field

[0001] This invention relates to the field of food and pharmaceutical packaging machinery and equipment, and in particular to a chemical preparation system for preventing hot air backflow. Background Technology

[0002] The chemical preparation system is an indispensable part of the production of drop pills. Drop pills are generally traditional Chinese medicine preparations, and the finished product is a solid particle of uniform size. In the preparation process, the solid material is first melted by the chemical preparation system and the various materials are mixed to form a droplet. Then, the drop pill is dripped and cooled by the drop pill machine to finally obtain the finished product.

[0003] Currently, commonly used chemical mixing systems add solid materials to tank equipment through methods such as direct feeding, liquid mixing, and vacuum suction. The specific structure includes a chemical mixing tank and a feeding mechanism that supplies materials to the chemical mixing tank. The feeding mechanism is directly connected to the chemical mixing tank. During the feeding process, hot air from the chemical mixing tank can easily rise into the feeding mechanism, causing the material in the feeding mechanism to melt prematurely. The molten material sticks to the feeding mechanism, which can easily cause blockages. Furthermore, after condensation, it can clump together in the feeding mechanism, thus affecting production efficiency and increasing production costs.

[0004] Furthermore, in the process of preparing pellets, due to the different melting points of each material, multiple steps are usually required to complete the preparation. Existing preparation systems all use a single preparation tank for multi-stage processes, that is, material A and material B are mixed in a preparation tank at a certain temperature, and then material C is added at another temperature. During the process of adding material C, the machine needs to be stopped, the preparation tank opened, and the temperature inside the preparation tank adjusted before adding material C. The whole process has low production efficiency, poor production quality, and cannot be sustained. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a material preparation system that can prevent hot gas backflow, which can feed materials while running, improve production efficiency, and reduce production costs.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A material preparation system for preventing hot gas backflow includes a first material tank with an internal stirring device, a feeding mechanism connected to the first material tank, and a first heating mechanism. A heat-insulating connection mechanism is provided between the feeding mechanism and the first material tank. The heat-insulating connection mechanism includes a feed valve, a heat insulation pipe, and an air blowing device that prevents hot gas from entering the feeding mechanism, which are connected in sequence. The feed valve is located at the feed inlet of the first material tank, and the feeding mechanism is connected to the air blowing device.

[0008] As a further improvement to the above technical solution:

[0009] The air blowing device includes an air blowing pipe and an air blower. The air blowing pipe is connected between the feeding mechanism and the heat insulation pipe. The peripheral wall of the air blowing pipe is provided with multiple air blowing ports connected to the air blower.

[0010] The heat insulation pipe is a flexible tube.

[0011] The first heating mechanism includes a first oil bath heater, a first oil supply pipe, a first oil return pipe, and a first heating jacket. The first heating jacket is fitted onto the outer wall of the first chemical tank. The first heating jacket is provided with a first heating oil passage and a first oil inlet and a first oil outlet communicating with the first heating oil passage. The first oil bath heater is connected to the first oil inlet through the first oil supply pipe and to the first oil outlet through the first oil return pipe.

[0012] The first oil inlet is located at the bottom of the first heating jacket, and the first oil outlet is located at the top of the first heating jacket.

[0013] The first material tank has a first discharge port at the bottom and a compressed air inlet at the top.

[0014] The material preparation system for preventing hot gas backflow also includes a second material tank, which is connected to a second heating mechanism. The top of the second material tank is provided with a first feeding port, and a connecting pipe is provided between the first discharge port and the first feeding port of the first material tank.

[0015] The second heating mechanism includes a second oil bath heater, a second oil supply pipe, a second oil return pipe, and a second heating jacket. The second heating jacket is fitted onto the outer wall of the second chemical tank. The second heating jacket is provided with a second heating oil passage and a second oil inlet and a second oil outlet connected to the second heating oil passage. The second oil bath heater is connected to the second oil inlet through the second oil supply pipe and to the second oil outlet through the second oil return pipe.

[0016] The second oil inlet is located at the bottom of the second heating jacket, and the second oil outlet is located at the top of the second heating jacket.

[0017] The bottom of the second chemical tank is provided with a second discharge port, which is connected to the drop shot machine. A filter is provided between the second discharge port and the drop shot machine.

[0018] Compared with the prior art, the advantages of the present invention are as follows:

[0019] The material preparation system for preventing hot gas backflow of the present invention includes a first material preparation tank with an internal stirring device, a feeding mechanism connected to the first material preparation tank, and a first heating mechanism. A heat-resistant connection mechanism is provided between the feeding mechanism and the first material preparation tank. The heat-resistant connection mechanism includes a feed valve, a heat insulation pipe, and an air blowing device that prevents hot gas from entering the feeding mechanism, connected in sequence. The feed valve is located at the feed inlet of the first material preparation tank, and the feeding mechanism is connected to the air blowing device. Because of the heat-resistant connection mechanism between the feeding mechanism and the first material preparation tank, the air blowing device of the heat-resistant connection mechanism can prevent hot gas from entering the feeding mechanism, thereby preventing hot gas from the first material preparation tank from rising into the feeding mechanism. This avoids premature melting of the material in the feeding mechanism, thus preventing molten material from sticking to the feeding mechanism and causing blockage. Furthermore, due to the heat-resistant effect of the heat-resistant connection mechanism, the first material preparation tank can be fed while running, eliminating the need to feed when the first material preparation tank is stopped, thus improving work efficiency and reducing production costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the chemical preparation system for preventing hot gas backflow according to the present invention.

[0021] Figure 2 This is a schematic diagram of the heat-insulating connection mechanism of the chemical preparation system for preventing hot gas backflow according to the present invention.

[0022] Figure 3 This is a cross-sectional view of the first material tank in the material preparation system for preventing hot gas backflow according to the present invention.

[0023] Figure 4 This is a schematic diagram of the structure of the second material tank in the material preparation system for preventing hot gas backflow according to the present invention.

[0024] Figure 5 This is a cross-sectional view of the second material tank in the material preparation system for preventing hot gas backflow according to the present invention.

[0025] The labels in the diagram represent:

[0026] 1. First material tank; 11. First discharge port; 12. Stirring device; 13. Compressed air inlet; 2. Feeding mechanism; 21. Feed pipe; 3. Thermal insulation connection mechanism; 31. Feed valve; 32. Heat insulation pipe; 33. Air blowing device; 331. Air blowing pipe; 332. Air blower; 333. Air outlet; 4. First heating mechanism; 41. First oil bath heater; 42. First oil supply pipe; 43. First oil return pipe; 44. 1. Heating jacket; 441. First heating oil passage; 442. First oil inlet; 443. First oil outlet; 5. Second chemical tank; 51. First feeding port; 52. Second discharge port; 6. Second heating mechanism; 61. Second oil bath heater; 62. Second oil supply pipe; 63. Second oil return pipe; 64. Second heating jacket; 641. Second heating oil passage; 642. Second oil inlet; 643. Second oil outlet; 7. Connecting pipe. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Figures 1 to 5 An embodiment of the material preparation system for preventing hot gas backflow of the present invention is shown. The material preparation system for preventing hot gas backflow includes a first material tank 1 with a stirring device 12 inside, a feeding mechanism 2 connected to the first material tank 1, and a first heating mechanism 4. A heat-insulating connection mechanism 3 is provided between the feeding mechanism 2 and the first material tank 1. The heat-insulating connection mechanism 3 includes a feed valve 31, a heat insulation pipe 32, and an air blowing device 33 that prevents hot gas from entering the feeding mechanism 2, which are connected in sequence. The feed valve 31 is located at the feed inlet of the first material tank 1, and the feeding mechanism 2 is connected to the air blowing device 33. Because a heat-insulating connection mechanism 3 is provided between the feeding mechanism 2 and the first chemical tank 1, the air blowing device 33 of the heat-insulating connection mechanism 3 can prevent hot air from entering the feeding mechanism 2, thereby preventing hot air in the first chemical tank 1 from rising into the feeding mechanism 2, so as to avoid the material in the feeding mechanism 2 from melting prematurely, thereby preventing the molten material from sticking to the feeding mechanism 2 and causing blockage of the feeding mechanism 2; and, due to the heat-insulating effect of the heat-insulating connection mechanism 3, the first chemical tank 1 can be fed while running, without having to feed when the first chemical tank 1 is stopped, which improves work efficiency and reduces production costs.

[0029] In this embodiment, as Figure 2As shown, the air blowing device 33 includes an air blowing pipe 331 and an air blower 332. The air blowing pipe 331 is connected between the feeding mechanism 2 and the heat insulation pipe 32. Multiple air blowing ports 333 connected to the air blower 332 are provided on the peripheral wall of the air blowing pipe 331. The air blowing ports 333 are evenly spaced around the central axis of the air blowing pipe 331. Each air blowing port 333 is a through hole penetrating the wall of the air blowing pipe 331. The through hole is inclined towards the heat insulation pipe 32, so that the air blown in by the air blower 332 is directed into the first chemical tank 1, preventing hot air in the first chemical tank 1 from rising into the feeding mechanism 2. The feeding mechanism 2 is a vacuum feeder; the feed valve 31 is a pneumatic butterfly valve.

[0030] In this embodiment, the heat insulation pipe 32 is a flexible hose. A heat insulation pipe 32 is provided between the feeding mechanism 2 and the first chemical tank 1 as a flexible connection. The heat insulation pipe 32 is made of heat insulation material to prevent heat loss.

[0031] In this embodiment, as Figure 1 and Figure 3 As shown, the first heating mechanism 4 includes a first oil bath heater 41, a first oil supply pipe 42, a first oil return pipe 43, and a first heating sleeve 44. The first heating sleeve 44 is sleeved on the outer wall of the first chemical tank 1. The first heating sleeve 44 is provided with a first heating oil passage 441 and a first oil inlet 442 and a first oil outlet 443 connected to the first heating oil passage 441. The first oil bath heater 41 is connected to the first oil inlet 442 through the first oil supply pipe 42, and the first oil bath heater 41 is connected to the first oil outlet 443 through the first oil return pipe 43. Hot oil in the first oil bath heater 41 enters the first heating oil channel 441 through the first oil supply pipe 42 and the first oil inlet 442 to heat the first chemical tank 1 and provide the required temperature for chemical processing. The oil that has been cooled by absorbing heat from the first chemical tank 1 returns to the first oil bath heater 41 through the first oil outlet 443 and the first oil return pipe 43, and is reheated to become hot oil. The oil continuously heats the first chemical tank 1 through the circuit composed of the first oil bath heater 41, the first oil supply pipe 42, the first heating oil channel 441 and the first oil return pipe 43, resulting in high heat exchange efficiency and high temperature control accuracy.

[0032] In this embodiment, as Figure 1 and Figure 3 As shown, the first oil inlet 442 is located at the bottom of the first heating jacket 44, and the first oil outlet 443 is located at the top of the first heating jacket 44, so as to extend the flow length of the oil passage between the first oil inlet 442 and the first oil outlet 443 and improve the heat exchange efficiency.

[0033] In this embodiment, as Figure 3As shown, the first material tank 1 has a first discharge port 11 at the bottom and a compressed air inlet 13 at the top. The material in the first material tank 1 can be discharged through the first discharge port 11, and compressed air can be injected into the first material tank 1 through the compressed air inlet 13.

[0034] In this embodiment, as Figure 4 As shown, the material preparation system to prevent hot gas backflow also includes a second material preparation tank 5. The second material preparation tank 5 is connected to a second heating mechanism 6. The top of the second material preparation tank 5 is provided with a first feeding port 51. A connecting pipe 7 is provided between the first discharge port 11 of the first material preparation tank 1 and the first feeding port 51. Due to the addition of the second material preparation tank 5, solid melting and mixing can be carried out first in the first material preparation tank 1. The melted mixture then enters the second material preparation tank 5 through the connecting pipe 7, where solid-liquid mixing is carried out again. Compared to the first method, which involves both solid melting and mixing and solid-liquid mixing in the first material preparation tank 1, this method results in better production quality, higher production efficiency, and sustainable production.

[0035] In this embodiment, as Figure 4 and Figure 5 As shown, the second heating mechanism 6 includes a second oil bath heater 61, a second oil supply pipe 62, a second oil return pipe 63, and a second heating jacket 64. The second heating jacket 64 is sleeved on the outer wall of the second chemical tank 5. The second heating jacket 64 is provided with a second heating oil passage 641 and a second oil inlet 642 and a second oil outlet 643 connected to the second heating oil passage 641. The second oil bath heater 61 is connected to the second oil inlet 642 through the second oil supply pipe 62, and the second oil bath heater 61 is connected to the second oil outlet 643 through the second oil return pipe 63. Hot oil in the second oil bath heater 61 enters the second heating oil passage 641 through the second oil supply pipe 62 and the second oil inlet 642 to heat the second chemical tank 5 and provide the required temperature for chemical processing. The oil that has been cooled by absorbing heat from the second chemical tank 5 returns to the second oil bath heater 61 through the second oil outlet 643 and the second oil return pipe 63, and is reheated to become hot oil. The oil continuously heats the second chemical tank 5 through the loop composed of the second oil bath heater 61, the second oil supply pipe 62, the second heating oil passage 641, and the second oil return pipe 63, resulting in high heat exchange efficiency and high temperature control accuracy.

[0036] In this embodiment, as Figure 5 As shown, the second oil inlet 642 is located at the bottom of the second heating jacket 64, and the second oil outlet 643 is located at the top of the second heating jacket 64, so as to extend the flow length of the oil passage between the second oil inlet 642 and the second oil outlet 643 and improve the heat exchange efficiency.

[0037] In this embodiment, as Figure 5As shown, the bottom of the second chemical tank 5 is provided with a second discharge port 52, which is connected to the pelletizing machine. A filter is provided between the second discharge port 52 and the pelletizing machine. The material in the second chemical tank 5 can be discharged through the second discharge port 52, which is connected to the pelletizing machine through the filter to provide the pelletizing machine with the chemical solution.

[0038] In this embodiment, as Figure 1 and Figure 4 As shown, the feeding mechanism 2 is connected to the feed pipe 21, and the material is drawn into the first chemical tank 1 through the feed pipe 21 by the suction action of the feeding mechanism 2 (such as a pump).

[0039] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the invention. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the scope of the present invention, should fall within the protection scope of the present invention.

Claims

1. A chemical preparation system for preventing hot gas backflow, characterized in that: The device includes a first chemical tank (1) with a stirring device (12) inside, a feeding mechanism (2) connected to the first chemical tank (1), and a first heating mechanism (4). A heat-insulating connection mechanism (3) is provided between the feeding mechanism (2) and the first chemical tank (1) to prevent hot air in the first chemical tank (1) from rising into the feeding mechanism (2). The heat-insulating connection mechanism (3) includes a feed valve (31), a heat insulation pipe (32), and an air blowing device (33) that prevents hot air from entering the feeding mechanism (2) in sequence. The feed valve (31) is located at the feed inlet of the first chemical tank (1). The feeding mechanism (2) is connected to the air blowing device (33). The air blowing device (33) is used to blow air towards the first chemical tank (1). The heat insulation pipe (32) is used to prevent heat dissipation.

2. The chemical preparation system for preventing hot gas backflow according to claim 1, characterized in that: The air blowing device (33) includes an air blowing pipe (331) and a blower (332). The air blowing pipe (331) is connected between the feeding mechanism (2) and the heat insulation pipe (32). The peripheral wall of the air blowing pipe (331) is provided with a plurality of air blowing ports (333) connected to the blower (332).

3. The chemical preparation system for preventing hot gas backflow according to claim 1, characterized in that: The heat insulation pipe (32) is a flexible tube.

4. The chemical preparation system for preventing hot gas backflow according to claim 1, characterized in that: The first heating mechanism (4) includes a first oil bath heater (41), a first oil supply pipe (42), a first oil return pipe (43) and a first heating sleeve (44). The first heating sleeve (44) is fitted on the outer wall of the first chemical tank (1). The first heating sleeve (44) is provided with a first heating oil passage (441) and a first oil inlet (442) and a first oil outlet (443) connected to the first heating oil passage (441). The first oil bath heater (41) is connected to the first oil inlet (442) through the first oil supply pipe (42) and the first oil bath heater (41) is connected to the first oil outlet (443) through the first oil return pipe (43).

5. The chemical preparation system for preventing hot gas backflow according to claim 4, characterized in that: The first oil inlet (442) is located at the bottom of the first heating sleeve (44), and the first oil outlet (443) is located at the top of the first heating sleeve (44).

6. The chemical preparation system for preventing hot gas backflow according to any one of claims 1 to 5, characterized in that: The first material tank (1) has a first discharge port (11) at the bottom and a compressed air inlet (13) at the top.

7. The chemical preparation system for preventing hot gas backflow according to claim 6, characterized in that: The material preparation system for preventing hot gas backflow also includes a second material tank (5), which is connected to a second heating mechanism (6). The top of the second material tank (5) is provided with a first feeding port (51), and a connecting pipe (7) is provided between the first discharge port (11) of the first material tank (1) and the first feeding port (51).

8. The chemical preparation system for preventing hot gas backflow according to claim 7, characterized in that: The second heating mechanism (6) includes a second oil bath heater (61), a second oil supply pipe (62), a second oil return pipe (63), and a second heating jacket (64). The second heating jacket (64) is fitted on the outer wall of the second chemical tank (5). The second heating jacket (64) is provided with a second heating oil passage (641) and a second oil inlet (642) and a second oil outlet (643) connected to the second heating oil passage (641). The second oil bath heater (61) is connected to the second oil inlet (642) through the second oil supply pipe (62), and the second oil bath heater (61) is connected to the second oil outlet (643) through the second oil return pipe (63).

9. The chemical preparation system for preventing hot gas backflow according to claim 8, characterized in that: The second oil inlet (642) is located at the bottom of the second heating jacket (64), and the second oil outlet (643) is located at the top of the second heating jacket (64).

10. The chemical preparation system for preventing hot gas backflow according to claim 7, characterized in that: The second material tank (5) is provided with a second discharge port (52) at the bottom. The second discharge port (52) is connected to the drop shot machine. A filter is provided between the second discharge port (52) and the drop shot machine.

Images