Anti-coking mechanism of spray drying main tower

Abstract

The utility model discloses an anti-coking mechanism of a spray drying main tower, which relates to the technical field of spray drying towers and comprises a shell. A top cover is mounted at the top end of the shell; the top end of the top cover is fixedly connected with a conveying pipe; the bottom end of the conveying pipe is fixedly connected with a material spray head; the side end of the shell is fixedly connected with a discharge pipe; material liquid is conveyed to a material spray head through a conveying pipe, a vibration ball block repeatedly impacts a vibration soft cushion through a telescopic vibration machine to vibrate, so that a shell vibrates, the vibration of the shell enables materials attached to the inner side wall to fall off, and the situation that the materials are attached to the inner side wall of the shell is avoided; the rotating rod rotates to drive the rotating plate to rotate, the rotating plate rotates to enable the cleaning scraping plate to rotate to scrape materials on the inner side wall of the shell, the materials are prevented from being attached to the inner side wall of the shell, the coking problem caused by material adhesion is solved, and therefore the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spray drying towers, and particularly relates to an anti-coking mechanism for a main spray drying tower. Background Technique

[0002] In the industrial production of food, food such as instant tea powder, instant coffee powder, and seasoning powder has widely used spray drying process technology for production.

[0003] A spray drying tower is a commonly used drying device, which is used to atomize liquid or suspension materials into small droplets through a sprayer, thereby increasing the surface area of the materials. Then, these small droplets are brought into contact with hot air, and the wet droplets are instantaneously evaporated through hot air drying and the liquid material is dried into powder or granular form, and finally the required dried product is obtained.

[0004] The Chinese patent with the authorization announcement number CN206793062U discloses a spray drying tower, including a tower body. The tower body is composed of a cylindrical upper half body and a conical lower half body. A nozzle extending into it is provided above the tower body. It also includes a hot air pipe for supplying hot air into the tower body. The lower end of the lower half body is a discharge port. The tower body is of a sandwich structure. The hot air pipe is communicated with the sandwich layer. An exhaust pipe communicated with the sandwich layer is also provided on the outer wall of the tower body. The exhaust pipe and the hot air pipe are located on both sides of the tower body. An exhaust valve is provided on the exhaust pipe. A temperature sensor is arranged on the outer wall of the tower body. The exhaust valve is controlled by the temperature sensor. By setting the whole tower body as a sandwich structure and introducing hot air into the sandwich layer at the same time, the spray drying tower of the utility model can effectively slow down the heat loss in the tower body and ensure that the temperature in the tower body is in a relatively high temperature state. When the temperature sensor on the outer wall of the tower body detects that the temperature in the sandwich layer is relatively low, the exhaust valve is controlled to open, and the cold air in the sandwich layer is discharged by using the hot air pipe. At the same time, new hot air is supplemented to ensure the temperature in the sandwich layer, so that the whole drying tower has a relatively high drying efficiency.

[0005] The deficiencies of the above-mentioned prior art solutions are as follows: In the above solution, by setting the whole tower body as a sandwich structure, when the temperature sensor on the outer wall of the tower body detects that the temperature in the sandwich layer is relatively low, the exhaust valve is controlled to open, and the cold air in the sandwich layer is discharged by using the hot air pipe. At the same time, new hot air is supplemented to ensure the temperature in the sandwich layer, so that the whole drying tower has a relatively high drying efficiency.

[0006] However, during the working process of the main spray drying tower, materials will adhere to the inner side wall, resulting in that some adhered materials are not easy to fall off, causing the materials to coke due to high temperature, thereby reducing the product quality. Here, we provide an anti-coking mechanism for the main spray drying tower. Content of the Utility Model

[0007] The purpose of the present utility model is to provide an anti-coking mechanism for a spray drying main tower to solve the above technical problems.

[0008] The technical problems to be solved by the present utility model can be achieved through the following technical solutions:

[0009] An anti-coking mechanism for a spray drying main tower includes a housing; a top cover is installed at the top end of the housing; a conveying pipe is fixedly connected to the top end of the top cover; a material spray head is fixedly connected to the bottom end of the conveying pipe; a discharge pipe is fixedly connected to the side end of the housing; a positioning shell is fixedly connected to the outer side wall of the housing; a telescopic vibration machine is fixedly connected to the inner side wall of the positioning shell; a vibration soft pad is fixedly connected to the outer side wall of the housing; a motor is fixedly connected to the inside of the housing; a rotating rod is provided at the top end of the motor; a rotating plate is fixedly connected to the top end of the rotating rod; a cleaning scraper is connected to the side end of the rotating plate.

[0010] As a further scheme of the present utility model: a second hot air blower is fixedly connected to the top end of the rotating plate; an output pipe is fixedly connected to the bottom end of the second hot air blower; a hot air spray head is fixedly connected to the side end of the output pipe.

[0011] As a further scheme of the present utility model: the output end of the motor is fixedly connected to the first hot air blower; the top end of the first hot air blower is fixedly connected to the bottom end of the rotating rod; a hot air spray pipe is fixedly connected to the side end of the rotating rod.

[0012] As a further scheme of the present utility model: a first electric push rod is provided on one side of the hot air spray pipe; the rotating plate is fixedly connected to the top end of the first electric push rod; the first electric push rod is fixedly connected to the side end of the cleaning scraper.

[0013] As a further scheme of the present utility model: a second electric push rod is fixedly connected to the inner side wall of the housing; a vibration block is fixedly connected to the bottom end of the second electric push rod, and the cleaning scraper slides below the vibration block.

[0014] As a further scheme of the present utility model: a sealing ring is fixedly connected to the inside of the housing; a sealing plate is fixedly connected to the inner side wall of the housing, and the sealing plate corresponds to the sealing ring.

[0015] The beneficial effects of the present utility model: Liquid materials such as tea concentrate are conveyed to the material spray head through the conveying pipe, and then sprayed inside the housing through the material spray head for spray drying treatment. The positioning shell can limit the position of the telescopic vibration machine. A vibration ball block is fixedly connected to the side end of the telescopic vibration machine. The vibration ball block vibrates due to repeatedly hitting the vibration soft pad through the telescopic vibration machine, so that the housing vibrates. The vibration of the housing causes the materials adhering to the inner side wall to fall off. At the same time, the motor makes the rotating rod rotate, the rotation of the rotating rod drives the rotating plate to rotate, and the rotation of the rotating plate further makes the cleaning scraper rotate to scrape off the materials on the inner side wall of the housing, avoiding the adhesion of materials on the inner side wall of the housing and reducing the coking problem caused by material adhesion, thereby improving the product quality. Brief Description of the Drawings

[0016] The present utility model will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a schematic diagram of the internal structure of the housing in the present utility model;

[0019] Figure 3 is the present utility model Figure 2 enlarged view of part A;

[0020] In the figure: 1, housing; 2, top cover; 3, conveying pipe; 4, discharge pipe; 5, motor; 6, first hot air blower; 7, rotating rod; 8, cleaning scraper; 9, rotating plate; 10, second hot air blower; 11, output pipe; 12, hot air nozzle; 13, hot air spray pipe; 14, material nozzle; 15, first electric push rod; 16, second electric push rod; 17, vibration block; 18, sealing plate; 19, sealing ring; 20, positioning housing; 21, telescopic vibrator; 22, vibration cushion. Detailed Description of the Preferred Embodiment

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in 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 the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0022] As Figures 1 - 3 shown, a coking prevention mechanism for a spray drying main tower includes a housing 1; a top cover 2 is installed at the top end of the housing 1; a conveying pipe 3 is fixedly connected to the top end of the top cover 2; a material nozzle 14 is fixedly connected to the bottom end of the conveying pipe 3; a discharge pipe 4 is fixedly connected to the side end of the housing 1; a positioning housing 20 is fixedly connected to the outer side wall of the housing 1; a telescopic vibrator 21 is fixedly connected to the inner side wall of the positioning housing 20; a vibration cushion 22 is fixedly connected to the outer side wall of the housing 1; a motor 5 is fixedly connected to the inside of the housing 1; a rotating rod 7 is provided at the top end of the motor 5; a rotating plate 9 is fixedly connected to the top end of the rotating rod 7; a cleaning scraper 8 is connected to the side end of the rotating plate 9.

[0023] During operation, liquid materials such as tea concentrate are transported through the delivery pipe 3 to the material spray head 14, and then sprayed inside the housing 1 through the material spray head 14 for spray drying treatment. Then, it is transported to the next working area through the discharge pipe 4. During the spray drying process of the liquid material, some materials will adhere to the inner side wall of the housing 1. The positioning housing 20 can define the position of the telescopic vibrating machine 21. A vibrating ball block is fixedly connected to the side end of the telescopic vibrating machine 21. The vibrating ball block vibrates by repeatedly hitting the vibration soft pad 22 through the telescopic vibrating machine 21, thereby causing the housing 1 to vibrate. The vibration of the housing 1 causes the materials adhering to the inner side wall to fall off. At the same time, the rotating rod 7 is rotated by the motor 5. The rotation of the rotating rod 7 drives the rotating plate 9 to rotate, and the rotation of the rotating plate 9 further causes the cleaning scraper 8 to rotate to scrape off the materials on the inner side wall of the housing 1, preventing the materials from adhering to the inner side wall of the housing 1 and reducing the coking problem caused by material adhesion, thereby improving the product quality.

[0024] A second hot air blower 10 is fixedly connected to the top end of the rotating plate 9; an output pipe 11 is fixedly connected to the bottom end of the second hot air blower 10; a hot air spray head 12 is fixedly connected to the side end of the output pipe 11.

[0025] The hot air flow generated by the second hot air blower 10 is transported to the inside of the output pipe 11, and then these hot air flows are sprayed into the inside of the housing 1 through the hot air spray head 12. The hot air spray head 12 rotates with the rotation of the rotating rod 7, and the hot air flow sprayed by the hot air spray head 12 impacts the materials on the inner side wall of the housing 1, thereby reducing the situation of material adhesion.

[0026] The output end of the motor 5 is fixedly connected to the first hot air blower 6; the top end of the first hot air blower 6 is fixedly connected to the bottom end of the rotating rod 7; a hot air spray pipe 13 is fixedly connected to the side end of the rotating rod 7.

[0027] The first hot air blower 6 can generate hot air flow, and these hot air flows can be sprayed into the inside of the housing 1 through the hot air spray pipe 13. The rotation of the rotating rod 7 causes the hot air spray pipe 13 to rotate, and the rotation of the hot air spray pipe 13 can improve the drying uniformity of the materials, thereby improving the product quality.

[0028] A first electric push rod 15 is provided on one side of the hot air spray pipe 13; the rotating plate 9 is fixedly connected to the top end of the first electric push rod 15; the first electric push rod 15 is fixedly connected to the side end of the cleaning scraper 8.

[0029] The first electric push rod 15 can make the cleaning scraper 8 slide up and down. The sliding of the cleaning scraper 8 can change the scraping path, thereby increasing the scraping range of the inner side wall of the housing 1 and further improving the treatment of the materials adhering to the inner side wall of the housing 1.

[0030] A second electric push rod 16 is fixedly connected to the inner side wall of the housing 1; a vibration block 17 is fixedly connected to the bottom end of the second electric push rod 16, and a cleaning scraper 8 slides below the vibration block 17.

[0031] The cleaning scraper 8 scrapes off the materials adhered to the inner side wall of the housing 1, resulting in some materials adhering to the cleaning scraper 8. The second electric push rod 16 can move the vibration block 17 towards the cleaning scraper 8. The vibration block 17 collides with the cleaning scraper 8 to generate vibration. The vibration effect can make the materials adhered to the cleaning scraper 8 fall off, reducing the situation of materials adhering to the cleaning scraper 8.

[0032] A sealing ring 19 is fixedly connected to the inside of the housing 1; a sealing plate 18 is fixedly connected to the inner side wall of the housing 1, and the sealing plate 18 corresponds to the sealing ring 19.

[0033] The sealing ring 19 is made of rubber. The sealing performance between the housing 1 and the top cover 2 can be improved through the sealing ring 19. The inside of the housing 1 needs to be maintained regularly. After opening the top cover 2, maintenance can be carried out. By installing the sealing ring 19 into the inside of the sealing plate 18, the sealing performance between the housing 1 and the top cover 2 can be improved.

[0034] Working principle of the utility model: When working, liquid materials such as tea concentrate are transported to the material spray head 14 through the conveying pipe 3, and then sprayed inside the housing 1 through the material spray head 14 for spray drying treatment. Then, it is transported to the next working area through the discharge pipe 4. During the spray drying process of the liquid material, some materials will adhere to the inner side wall of the housing 1. After adhesion, the materials are prone to coking after a long time at high temperature, which affects the product quality. The rotating rod 7 is rotated by the motor 5. The rotation of the rotating rod 7 drives the rotation of the rotating plate 9. The rotation of the rotating plate 9 further causes the cleaning scraper 8 to rotate to scrape off the materials on the inner side wall of the housing 1, avoiding the adhesion of materials to the inner side wall of the housing 1 and reducing the coking problem caused by material adhesion, thereby improving the product quality; The cleaning scraper 8 can slide up and down through the first electric push rod 15. The sliding of the cleaning scraper 8 can change the scraping path, thereby increasing the scraping range of the inner side wall of the housing 1, and further improving the treatment of materials adhering to the inner side wall of the housing 1; The first hot air blower 6 can generate hot air flow. These hot air flows can be sprayed inside the housing 1 through the hot air nozzle 13. The rotation of the rotating rod 7 will cause the hot air nozzle 13 to rotate. The rotation of the hot air nozzle 13 can improve the drying uniformity of the materials, thereby improving the product quality; The hot air flow generated by the second hot air blower 10 is transported to the inside of the output pipe 11, and then these hot air flows will be sprayed into the housing 1 through the hot air nozzles 12. The hot air nozzles 12 will rotate along with the rotation of the rotating rod 7. The hot air flows sprayed by the hot air nozzles 12 will impact the materials on the inner side wall of the housing 1, thereby reducing the adhesion of materials; The materials adhering to the inner side wall of the housing 1 are scraped off by the cleaning scraper 8, resulting in some materials adhering to the cleaning scraper 8. The vibration block 17 can be moved towards the cleaning scraper 8 through the second electric push rod 16. Vibration is generated by the impact contact between the vibration block 17 and the cleaning scraper 8, so that the materials adhering to the cleaning scraper 8 fall off, reducing the adhesion of materials to the cleaning scraper 8; The sealing ring 19 is made of rubber material. The sealing performance between the housing 1 and the top cover 2 can be improved through the sealing ring 19. The inside of the housing 1 needs to be maintained regularly. Maintenance can be carried out after opening the top cover 2. By installing the sealing ring 19 into the sealing plate 18, the sealing performance between the housing 1 and the top cover 2 can be improved.

[0035] The above has described an embodiment of the present utility model in detail, but the content described is only the preferred embodiment of the present utility model and cannot be considered as limiting the scope of implementation of the present utility model. All equivalent changes and improvements made according to the scope of the application of the present utility model should still fall within the scope covered by the patent of the present utility model.

Claims

1. A spray drying main tower anti-coking mechanism, characterized in that: The invention comprises a shell (1); a top cover (2) is installed at the top end of the shell (1); a conveying pipe (3) is fixedly connected to the top end of the top cover (2); a material nozzle (14) is fixedly connected to the bottom end of the conveying pipe (3); a discharge pipe (4) is fixedly connected to the side end of the shell (1); a positioning shell (20) is fixedly connected to the outer wall of the shell (1); a telescopic vibrator (21) is fixedly connected to the inner wall of the positioning shell (20); a vibrating cushion (22) is fixedly connected to the outer wall of the shell (1); a motor (5) is fixedly connected to the inside of the shell (1); a rotating rod (7) is provided at the top end of the motor (5); a rotating plate (9) is fixedly connected to the top end of the rotating rod (7); a cleaning scraper (8) is connected to the side end of the rotating plate (9).

2. A spray drying main tower anti-coking mechanism according to claim 1, characterized in that: A second hot air blower (10) is fixedly connected to the top end of the rotating plate (9); an output pipe (11) is fixedly connected to the bottom end of the second hot air blower (10); and a hot air nozzle (12) is fixedly connected to the side end of the output pipe (11).

3. A spray drying main tower anti-coking mechanism according to claim 1, characterized in that: The output end of the motor (5) is fixedly connected to the first hot air blower (6); the top end of the first hot air blower (6) is fixedly connected to the bottom end of the rotating rod (7); and the side end of the rotating rod (7) is fixedly connected to a hot air nozzle (13).

4. A spray drying main tower anti-coking mechanism according to claim 3, characterized in that: A first electric push rod (15) is provided on one side of the hot air nozzle (13); the rotating plate (9) is fixedly connected to the top end of the first electric push rod (15); and the first electric push rod (15) is fixedly connected to the side end of the cleaning scraper (8).

5. The anti-coking mechanism of the spray drying main tower according to claim 1, characterized in that: A second electric push rod (16) is fixedly connected to the inner side wall of the housing (1); a vibration block (17) is fixedly connected to the bottom end of the second electric push rod (16), and a cleaning scraper (8) is slidably disposed below the vibration block (17).

6. A spray drying main tower anti-coking mechanism according to claim 1, characterized in that: A sealing ring (19) is fixedly connected inside the shell (1); a sealing plate (18) is fixedly connected to the inner side wall of the shell (1), and the sealing plate (18) corresponds to the sealing ring (19).

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