Low temperature spray drying former

Abstract

This utility model relates to the field of spray drying, particularly low-temperature spray drying forming machines. Addressing the problem that scraper cleaning of the inner wall of existing spray drying forming machines easily damages the inner wall of the tank, the following solution is proposed: It includes a tank and a sprayer installed on the top of the tank. The tank is characterized by a cleaning mechanism installed inside for cleaning its inner wall. The cleaning mechanism includes a mounting ring located inside the tank, a ring tube rotatably connected to the bottom surface of the mounting ring, multiple cleaning pipes fixed to the bottom surface of the ring tube, and a telescopic component installed on the top of the tank for driving the mounting ring to rise and fall. An air supply pipe connected to the ring tube is installed on the top of the tank. This utility model not only avoids damage to the inner wall of the tank during cleaning but also facilitates the upward lifting of agglomerated material while cleaning it down, thereby increasing the drying time of the agglomerated material inside the tank and improving the drying effect.

Description

Technical Field

[0001] This utility model relates to the field of spray drying, and in particular to a low-temperature spray drying molding machine. Background Technology

[0002] Spray drying forming machines are key pieces of equipment widely used in chemical, food, and pharmaceutical industries to atomize and dry liquid or slurry materials into powder or granular products. However, during low-temperature spray drying, due to the influence of material characteristics (such as viscosity and heat sensitivity) or process parameters (such as temperature and airflow distribution), the dried powder is prone to adhere and accumulate on the inner wall of the equipment. Long-term accumulation may lead to clumping, contamination, or even affect product quality.

[0003] Currently, traditional spray drying molding machines typically use scrapers or mechanical brushes to clean the inner wall of the tank to reduce material residue. However, scrapers or brushes cannot completely conform to the curved surface of the inner wall of the tank, resulting in some areas where residual material cannot be removed. Long-term accumulation may form hard lumps, affecting the normal operation of the equipment. Moreover, scrapers are prone to friction with the metal inner wall during cleaning, especially at high speeds, which may scratch the inner wall surface, reducing the equipment's lifespan and potentially contaminating the product with metal shavings mixed in with the material. Therefore, this solution proposes a low-temperature spray drying molding machine. Utility Model Content

[0004] The low-temperature spray drying molding machine proposed in this utility model solves the problem that the inner wall of the tank is easily damaged when cleaning the inner wall of the spray drying molding machine with a scraper in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A low-temperature spray drying molding machine includes a tank and a sprayer installed on the top of the tank, characterized in that a cleaning mechanism for cleaning its inner wall is installed inside the tank.

[0007] The cleaning mechanism includes an installation ring disposed inside the tank, a ring tube rotatably connected to the bottom surface of the installation ring, multiple cleaning pipes fixed to the bottom surface of the ring tube, and a telescopic component installed on the top of the tank for driving the installation ring to rise and fall. An air supply pipe communicating with the ring tube is installed on the top of the tank, and multiple air jet holes facing the inner wall of the tank are opened on the cleaning pipe.

[0008] The inner wall of the tank is provided with a guide groove that is coaxial with and inclined to it. A guide post is fixed to the outer periphery of the ring tube. One end of the guide post extends into the guide groove to drive the ring tube to rotate during the lifting and lowering of the installation ring.

[0009] The above technical solution not only avoids damage to the inner wall of the tank during the cleaning process, but also facilitates the upward lifting of the clumped material while cleaning it down, thereby increasing the drying time of the clumped material in the tank and improving the drying effect.

[0010] As a further improvement to the above solution, the number of telescopic components is set to 2-3 sets. The telescopic components include a telescopic rod installed on the top of the tank, a connecting rod fixed to the output end of the telescopic rod, and a sealing cover fixed to the top of the tank and covering the outer periphery of the telescopic rod. The output end of the telescopic rod extends into the inside of the tank, and the other end of the connecting rod is fixedly connected to the top surface of the mounting ring.

[0011] As a further improvement to the above solution, the gas transmission pipe includes a movable pipe fixed to the top of the mounting ring, a fixed pipe movably sleeved on the outer periphery of the top of the movable pipe, and a flexible hose installed at the bottom of the outer periphery of the movable pipe. The other end of the flexible hose is fixed to the outer wall of the ring pipe and communicates with the inside of the ring pipe. The fixed pipe is fixed to the top of the tank body, and the top of the fixed pipe extends to the outside of the tank body.

[0012] As a further improvement to the above solution, one end of the guide post located in the guide groove has a hemispherical structure.

[0013] As a further improvement to the above solution, both the ring pipe and the mounting ring are coaxially arranged with the tank body, the cleaning pipe is arranged along the axial direction of the tank body, and a distance of 0.5 to 1 cm is provided between the outer periphery of the cleaning pipe and the inner wall of the tank body.

[0014] As a further improvement to the above solution, the opening of the jet hole is set obliquely upward, and the angle between the axis of the jet hole and the inner wall of the tank is 30-45°.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. By setting up the cleaning mechanism, the airflow sprayed from the cleaning pipe can be used to clean the material adhering to the inner wall of the tank, avoiding the damage to the inner wall of the tank caused by scraping. Moreover, through the cooperation between the guide groove, guide column and telescopic component, the ring pipe can be driven to rotate along the rotation direction of the guide groove during the process of cleaning different heights of the inner wall of the tank by driving the ring pipe to rise and fall, thereby driving the cleaning pipe to rotate, and thus cleaning different positions of the inner wall of the tank in the horizontal direction.

[0017] 2. By setting the jet nozzles at an upward angle, the material is blown off the inner wall of the tank and then lifted upward, thus increasing the time the material stays inside the tank, thereby increasing the drying time and improving the drying effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the tank;

[0020] Figure 3 A schematic diagram of the ring pipe, cleaning pipe, and guide column;

[0021] Figure 4 This is a schematic diagram of the guide groove structure;

[0022] Figure 5 A schematic diagram of the cleaning pipe and air jet.

[0023] Explanation of key symbols:

[0024] 1. Tank body; 2. Sprayer; 3. Fixed pipe; 4. Sealing cover; 5. Telescopic rod; 6. Guide groove; 7. Mounting ring; 8. Ring pipe; 9. Cleaning pipe; 10. Movable pipe; 11. Hose; 12. Guide column; 13. Air jet hole. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] Example 1:

[0027] Please combine Figure 1 - Figure 5 The low-temperature spray drying molding machine of this embodiment includes a tank 1 and a sprayer 2 installed on the top of the tank 1. A cleaning mechanism for cleaning its inner wall is installed inside the tank 1. The cleaning mechanism is used to clean the material adhering to the inner wall of the tank in a timely manner to prevent the material from clumping on the inner wall of the tank and affecting the drying effect.

[0028] The cleaning mechanism includes a mounting ring 7 inside the tank body 1, a ring pipe 8 rotatably connected to the bottom surface of the mounting ring 7, multiple cleaning pipes 9 fixed to the bottom surface of the ring pipe 8, and a telescopic component installed on the top of the tank body 1 for driving the mounting ring 7 to rise and fall. An air supply pipe communicating with the ring pipe 8 is installed on the top of the tank body 1. Multiple air jet holes 13 facing the inner wall of the tank body 1 are opened on the cleaning pipes 9. The telescopic component is set to 2-3 sets. The telescopic component includes a telescopic rod 5 installed on the top of the tank body 1, a connecting rod fixed to the output end of the telescopic rod 5, and a sealing cover 4 fixed to the top of the tank body 1 and covering the outer periphery of the telescopic rod 5. The output end of the telescopic rod 5 extends into the interior of the tank body 1. The other end of the connecting rod is fixed to the top surface of the mounting ring 7. The air supply pipe delivers hot air from the outside to the tank 1, and then sprays it out from the jet holes 13 on the multiple cleaning pipes 9. Finally, the airflow blows onto the inner wall of the tank 1, thereby blowing off the material attached to the inner wall of the tank 1, achieving the purpose of cleaning the inner wall of the tank 1. The telescopic component can be used to drive the mounting ring 7 to rise and fall by activating the telescopic rod 5 during the cleaning process, thereby driving the cleaning pipes 9 to rise and fall, thus cleaning different heights on the inner wall of the tank 1. The sealing cover 4 can play a good sealing role, preventing the hot air inside the tank 1 from escaping to the outside.

[0029] Both the ring pipe 8 and the mounting ring 7 are coaxially arranged with the tank body 1. The cleaning pipe 9 is arranged along the axial direction of the tank body 1, and there is a gap of 0.5 to 1 cm between the outer circumference of the cleaning pipe 9 and the inner wall of the tank body 1. The gap between the cleaning pipe 9 and the inner wall of the tank body 1 can prevent friction between the cleaning pipe 9 and the inner wall of the tank body 1 when the ring pipe 8 rotates.

[0030] The inner wall of the tank body 1 is provided with a guide groove 6 that is coaxial with and inclined. A guide post 12 is fixed on the outer periphery of the ring tube 8. One end of the guide post 12 extends into the guide groove 6 to drive the ring tube 8 to rotate during the lifting and lowering of the mounting ring 7. Since the guide groove 6 is inclined, the mounting ring 7 drives the ring tube 8 to lift and lower synchronously during the lifting and lowering process. While the guide post 12 follows the lifting and lowering of the ring tube 8, it will rotate upward or downward along the inclined direction of the guide groove 6 under the restriction of the guide groove 6, thereby driving the ring tube 8 to rotate. This achieves the purpose of driving the ring tube 8 to rotate during the lifting and lowering process, which makes it convenient to clean the inner wall of the tank body 1 at the horizontal position.

[0031] In this embodiment, the gas supply pipe includes a movable pipe 10 fixed to the top of the mounting ring 7, a fixed pipe 3 movably sleeved on the outer periphery of the top of the movable pipe 10, and a flexible hose 11 installed at the bottom of the outer periphery of the movable pipe 10. The other end of the flexible hose 11 is fixedly connected to the outer wall of the ring pipe 8 and communicates with the inside of the ring pipe 8. The fixed pipe 3 is fixedly connected to the top of the tank 1, and the top of the fixed pipe 3 extends to the outside of the tank 1. The movable pipe 10 ensures that the lifting and lowering of the mounting ring 7 is not affected by the gas supply pipe, while the flexible hose 11 ensures that the rotation of the ring pipe 8 is not restricted. When supplying gas, the fixed pipe 3 is connected to the external hot air supply pipe, so that hot air can be supplied to the ring pipe 8.

[0032] In this embodiment, the end of the guide post 12 located in the guide groove 6 is a hemispherical structure, which makes the resistance less when sliding in the guide groove 6.

[0033] Example 2:

[0034] Combination Figure 2 , Figure 3 and Figure 5 Based on Embodiment 1, this embodiment is further improved in that: the opening of the jet hole 13 is set at an upward angle, and the angle between the axis of the jet hole 13 and the inner wall of the tank 1 is 30-45°. Setting the jet hole 13 at an upward angle allows the material blown by the airflow from the jet hole 13 to be lifted upward under the action of the airflow, thereby increasing its drying time inside the tank 1. The angle of inclination of 30-45° is so that when the airflow blows on the inner wall of the tank 1, its vertical component can better blow the material adhering to the inner wall of the tank 1 upward.

[0035] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A low temperature spray drying forming machine comprising a tank (1) and a sprayer (2) mounted on top of the tank (1), characterized in that, The tank (1) is equipped with a cleaning mechanism for cleaning its inner wall; The cleaning mechanism includes an installation ring (7) located inside the tank (1), a ring pipe (8) rotatably connected to the bottom surface of the installation ring (7), a plurality of cleaning pipes (9) fixed to the bottom surface of the ring pipe (8), and a telescopic component installed on the top of the tank (1) for driving the installation ring (7) to rise and fall. The top of the tank (1) is equipped with an air supply pipe communicating with the ring pipe (8), and the cleaning pipe (9) is provided with a plurality of air jet holes (13) facing the inner wall of the tank (1). The inner wall of the tank (1) is provided with a guide groove (6) that is coaxial with and inclined to it. A guide post (12) is fixed on the outer periphery of the ring tube (8). One end of the guide post (12) extends into the guide groove (6) to drive the ring tube (8) to rotate during the lifting and lowering of the installation ring (7).

2. The low temperature spray-drying forming machine of claim 1, wherein, The number of telescopic components is set to 2-3 sets. The telescopic components include a telescopic rod (5) installed on the top of the tank (1), a connecting rod fixed to the output end of the telescopic rod (5), and a sealing cover (4) fixed on the top of the tank (1) and covering the outer periphery of the telescopic rod (5). The output end of the telescopic rod (5) extends into the inside of the tank (1), and the other end of the connecting rod is fixed to the top surface of the mounting ring (7).

3. The low temperature spray-drying forming machine of claim 1, wherein, The gas transmission pipe includes a movable pipe (10) fixed to the top of the mounting ring (7), a fixed pipe (3) movably sleeved on the outer periphery of the top of the movable pipe (10), and a flexible hose (11) installed at the bottom of the outer periphery of the movable pipe (10). The other end of the flexible hose (11) is fixed to the outer wall of the ring pipe (8) and communicates with the inside of the ring pipe (8). The fixed pipe (3) is fixed to the top of the tank body (1), and the top of the fixed pipe (3) extends to the outside of the tank body (1).

4. The low temperature spray-drying forming machine of claim 1, wherein, The guide post (12) has a hemispherical structure at one end located in the guide groove (6).

5. The low temperature spray-drying forming machine of claim 1, wherein, The ring pipe (8) and the mounting ring (7) are both coaxially arranged with the tank body (1). The cleaning pipe (9) is arranged along the axial direction of the tank body (1), and there is a gap of 0.5 to 1 cm between the outer periphery of the cleaning pipe (9) and the inner wall of the tank body (1).

6. The low temperature spray-drying forming machine of claim 1, wherein, The opening of the jet hole (13) is obliquely upward, and the angle between the axis of the jet hole (13) and the inner wall of the tank (1) is 30-45°.

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