A spray drying device for natamycin production

Abstract

This utility model discloses a spray drying device for natamycin production, comprising a double-layered tank. The double-layered tank includes a drying tank and an insulated tank covering the drying tank. An electric heating component is disposed between the drying tank and the insulated tank. An opening communicating with the inner cavity of the drying tank is fitted at the top of the double-layered tank, and an atomizing component is sealed at the opening. An exhaust pipe is installed on the side of the double-layered tank, with one end of the exhaust pipe communicating with the inner cavity of the drying tank. A discharge box is installed at the bottom of the double-layered tank. This spray drying device for natamycin production uses indirect contact heating to reduce the impact of the external environment on natamycin, and ensures the airtightness of the environment during the drying process, thus ensuring the quality of natamycin preparation. Furthermore, the drying device includes a cleaning component, which can be used not only for cleaning the inner wall of the drying tank but also to assist in the discharge of the dried natamycin.

Description

Technical Field

[0001] This utility model relates to the technical field of preservative preparation equipment, specifically a spray drying device for natamycin production. Background Technology

[0002] Natamycin, a natural preservative, is typically produced by Streptomyces fermentation. It inhibits the growth of yeasts and molds by disrupting cell membranes and has wide applications in food preservation and medical anti-infection treatment. The processing of natamycin requires drying the concentrated solution into a powder (or crystal) form for easier extraction, storage, and use. Spray drying, a common method for solution drying, involves atomizing the solution and spraying it into a container. High-temperature gas is then introduced into the container, causing water molecules in the spray to rapidly vaporize and separate, achieving a drying effect. However, when external gas is drawn and heated at high temperatures, it may contain foreign matter. When this heated gas comes into contact with natamycin in the container, it can negatively impact the quality of the prepared natamycin, necessitating additional filtration systems and increasing costs. This results in insufficient natamycin production. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a spray drying device for natamycin production. The device adopts an indirect contact heating method to reduce the impact of the external environment on natamycin, and can ensure the sealing of the environment during the drying process to ensure the quality of natamycin preparation. At the same time, the drying device is equipped with a cleaning component, which can not only be used to clean the inner wall of the drying tank, but also to assist in the discharge of dried natamycin, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a spray drying device for natamycin production, comprising a double-layer tank, the double-layer tank including a drying tank and an insulation tank covering the outside of the drying tank, an electric heating component being provided between the drying tank and the insulation tank, an opening communicating with the inner cavity of the drying tank being fitted at the top of the double-layer tank, and an atomizing component being sealed at the opening, an exhaust pipe being installed on the side of the double-layer tank, one end of the exhaust pipe communicating with the inner cavity of the drying tank, a discharge box being installed at the bottom of the double-layer tank, and the discharge box communicating with the inner cavity of the drying tank, a motor unit being installed at the bottom of the discharge box, and a cleaning component located inside the drying tank being installed on the drive shaft of the motor unit.

[0005] As a preferred embodiment of this utility model, the electric heating assembly includes a plurality of heating plates arranged sequentially from top to bottom between the drying tank and the heat preservation tank, and the heating end of the heating plate is in contact with the side of the drying tank.

[0006] As a preferred technical solution of this utility model, the atomizing component includes a liquid inlet pump, the liquid inlet end of the liquid inlet pump is provided with a liquid inlet pipe, the liquid outlet end of the liquid inlet pump is equipped with an atomizing nozzle, and the atomizing nozzle is located inside the drying tank. The liquid inlet pump is installed at the opening on the top of the double-layer tank through a mounting plate, and a sealing gasket is provided between the mounting plate and the double-layer tank.

[0007] As a preferred embodiment of this utility model, the output shaft of the motor unit is equipped with an installation shaft located inside the discharge box, and the installation shaft extends upward into the drying tank. The cleaning component includes a spiral blade installed on the installation shaft, and the spiral blade is located in the lower part of the inner cavity of the drying tank.

[0008] As a preferred embodiment of this utility model, a mounting bracket is fixed to the top of the mounting shaft, and two cleaning plates are symmetrically mounted on the mounting bracket. The cleaning plates are arranged in a spiral shape and are in contact with the inside of the drying tank.

[0009] As a preferred technical solution of this utility model, the discharge box is cylindrical, and a discharge port communicating with its inner cavity is opened on the side of the discharge box. A movable sealing plate is provided at the discharge port on the side of the discharge box. Several arc-shaped push plates are fixed on the side of the mounting shaft, and the several arc-shaped push plates are all located inside the discharge box.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. The spray drying device for natamycin production of this utility model uses a heating plate to heat the drying tank, causing the water in the natamycin solution in the drying tank to evaporate, which facilitates the production and processing of natamycin. This drying device uses indirect heating to dry the solution, reducing the impact of the external environment on natamycin.

[0012] 2. The spray drying device for natamycin production according to this utility model has a liquid inlet pump that draws concentrated natamycin solution through a liquid inlet pipe and sprays the solution through an atomizing nozzle. The water molecules after atomization are rapidly vaporized and separated under heating, which facilitates the drying process of natamycin.

[0013] 3. In the spray drying device for natamycin production of this utility model, the motor unit drives the spiral blades to rotate through the mounting shaft, and the rotating spiral blades assist in the discharge of the dried natamycin.

[0014] 4. In the spray drying device for natamycin production of this utility model, when the motor unit drives the mounting shaft to rotate, the mounting shaft drives the cleaning plate to rotate through the mounting frame. The cleaning plate cleans the inner wall of the drying tank to prevent natamycin from adhering to the inner wall of the drying tank and being unable to be discharged. At the same time, cleaning the inner wall of the drying tank facilitates the use of the electric heating component. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0018] Figure 4 This is a cross-sectional view of the discharge box in this utility model.

[0019] In the diagram: 1 Double-layer tank, 2 Drying tank, 3 Insulation tank, 4 Heating plate, 5 Mounting plate, 6 Liquid inlet pump, 7 Liquid inlet pipe, 8 Atomizing nozzle, 9 Sealing gasket, 10 Exhaust pipe, 11 Discharge box, 12 Motor unit, 13 Mounting shaft, 14 Spiral blade, 15 Cleaning plate, 16 Arc-shaped pusher plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This utility model provides a technical solution: a spray drying device for natamycin production, including a double-layer tank 1. The double-layer tank 1 is used to improve the sealing and heat preservation effect during natamycin drying. The double-layer tank 1 includes a drying tank 2 and a heat preservation tank 3 covering the outside of the drying tank 2. The drying tank 2 is used for drying natamycin, and the heat preservation tank 3 is used to reduce heat loss and save energy. An electric heating component is provided between the drying tank 2 and the heat preservation tank 3. The electric heating component includes several heating plates 4 arranged sequentially from top to bottom between the drying tank 2 and the heat preservation tank 3, and the heating end of the heating plate 4 is in contact with the side of the drying tank 2. The operation of the heating plate 4 is controlled so that the water in the natamycin solution in the drying tank 2 evaporates, which is convenient for the production and processing of natamycin. This drying device uses indirect heating to dry the solution, reducing the impact of the external environment on natamycin and avoiding the contamination of natamycin by foreign matter in the high-temperature gas transported in the traditional spray drying method.

[0022] The top of the double-walled tank 1 has an opening that communicates with the inner cavity of the drying tank 2, and an atomizing component is sealed at the opening. The atomizing component includes a liquid inlet pump 6, an inlet pipe 7 at the inlet end of the liquid inlet pump 6, and an atomizing nozzle 8 installed at the outlet end of the liquid inlet pump 6. The atomizing nozzle 8 is located inside the drying tank 2. The liquid inlet pump 6 is installed at the opening at the top of the double-walled tank 1 via a mounting plate 5, and a sealing gasket 9 is provided between the mounting plate 5 and the double-walled tank 1. The sealing gasket 9 is used for sealing and protection of the opening after the atomizing component is installed. The mounting plate 5 is installed on the double-walled tank 1 with bolts. After removing the bolts, the atomizing component can be removed from the double-walled tank 1 for easy cleaning and maintenance. In use, the liquid inlet pump 6 is controlled to work. The liquid inlet pump 6 draws the concentrated natamycin solution through the inlet pipe 7 and atomizes the solution through the atomizing nozzle 8. The water molecules after atomization are rapidly vaporized and separated under heating, which facilitates the drying process of natamycin.

[0023] The double-walled tank 1 is equipped with an exhaust pipe 10 on its side, and one end of the exhaust pipe 10 is connected to the inner cavity of the drying tank 2. The vaporization of water molecules increases the pressure inside the drying tank 2. The exhaust pipe 10 facilitates the discharge of vaporized water molecules from the drying tank 2. It should be noted that the end of the exhaust pipe 10 away from the double-walled tank 1 is connected to an external filter device. The filter device filters the natamycin in the exhaust gas, reducing the waste caused by natamycin being discharged with the gas.

[0024] A discharge box 11 is installed at the bottom of the double-walled tank 1, and the discharge box 11 is connected to the inner cavity of the drying tank 2. The discharge box 11 is used for collecting and storing natamycin after drying. A motor unit 12 is installed at the bottom of the discharge box 11, and a cleaning component located inside the drying tank 2 is installed on the drive shaft of the motor unit 12.

[0025] The output shaft of the motor unit 12 is equipped with a mounting shaft 13 located inside the discharge box 11, and the mounting shaft 13 extends upward into the drying tank 2. The cleaning component includes a spiral blade 14 mounted on the mounting shaft 13, and the spiral blade 14 is located in the lower part of the inner cavity of the drying tank 2. The motor unit 12 is controlled to work, and the motor unit 12 drives the spiral blade 14 to rotate through the mounting shaft 13. The rotating spiral blade 14 assists in the discharge of dried natamycin.

[0026] A mounting bracket is fixed to the top of the mounting shaft 13. Two cleaning plates 15 are symmetrically mounted on the mounting bracket. The cleaning plates 15 are arranged in a spiral shape and contact the inside of the drying tank 2. When the motor unit 12 drives the mounting shaft 13 to rotate, the mounting shaft 13 drives the cleaning plates 15 to rotate through the mounting bracket. The cleaning plates 15 clean the inner wall of the drying tank 2 to prevent natamycin from adhering to the inner wall of the drying tank 2 and being unable to be discharged. At the same time, cleaning the inner wall of the drying tank 2 facilitates the use of the electric heating component.

[0027] The discharge box 11 is cylindrical, and a discharge port communicating with its inner cavity is opened on the side of the discharge box 11. A movable sealing plate is provided at the discharge port on the side of the discharge box 11. Several arc-shaped pusher plates 16 are fixed on the side of the mounting shaft 13, and the arc-shaped pusher plates 16 are all located inside the discharge box 11. When natamycin needs to be removed after drying, the sealing plate is moved to open the discharge port on the side of the discharge box 11 to discharge the natamycin collected in the discharge box 11. During this process, the motor unit 12 can be controlled to work. The motor unit 12 drives the arc-shaped pusher plates 16 to rotate through the mounting shaft 13. The arc-shaped pusher plates 16 assist in the discharge of natamycin in the discharge box 11, which facilitates the use of this drying device.

[0028] The heating plate 4, the liquid inlet pump 6, and the motor assembly 12 used in this utility model are all commonly used electronic components in the prior art. Their working methods and circuit structures are all known technologies. The operation of electronic components such as the heating plate 4, the liquid inlet pump 6, and the motor assembly 12 is controlled by setting a switch group or PLC controller outside the double-layer tank 1. This method is a common technical means used by technicians and will not be described in detail here.

[0029] The spray drying device for natamycin production uses indirect contact heating to reduce the impact of the external environment on natamycin. It also ensures the airtightness of the environment during the drying process, thus guaranteeing the quality of natamycin preparation. In addition, the drying device is equipped with a cleaning component, which can be used not only to clean the inner wall of the drying tank, but also to assist in the discharge of dried natamycin.

[0030] The parts not disclosed in this utility model are all prior art, and their specific structures, materials, and working principles will not be described in detail. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spray drying apparatus for natamycin production, comprising a double-walled tank (1), characterized in that: The double-layer tank (1) includes a drying tank (2) and an insulation tank (3) covering the outside of the drying tank (2). An electric heating component is provided between the drying tank (2) and the insulation tank (3). The top of the double-layer tank (1) is fitted with an opening that communicates with the inner cavity of the drying tank (2), and an atomizing component is sealed at the opening. An exhaust pipe (10) is installed on the side of the double-layer tank (1), and one end of the exhaust pipe (10) communicates with the inner cavity of the drying tank (2). A discharge box (11) is installed at the bottom of the double-layer tank (1), and the discharge box (11) communicates with the inner cavity of the drying tank (2). A motor unit (12) is installed at the bottom of the discharge box (11), and a cleaning component located inside the drying tank (2) is installed on the drive shaft of the motor unit (12).

2. The spray drying apparatus for natamycin production according to claim 1, characterized in that: The electric heating assembly includes several heating plates (4) arranged sequentially from top to bottom between the drying tank (2) and the heat preservation tank (3), and the heating end of the heating plate (4) is in contact with the side of the drying tank (2).

3. The spray drying apparatus for natamycin production according to claim 1, characterized in that: The atomizing assembly includes a liquid inlet pump (6), the liquid inlet end of which is provided with a liquid inlet pipe (7), the liquid outlet end of which is provided with an atomizing nozzle (8), and the atomizing nozzle (8) is located inside the drying tank (2). The liquid inlet pump (6) is installed at the opening at the top of the double-layer tank (1) via a mounting plate (5), and a sealing gasket (9) is provided between the mounting plate (5) and the double-layer tank (1).

4. The spray drying apparatus for natamycin production according to claim 1, characterized in that: The motor unit (12) has an installation shaft (13) installed on its output shaft inside the discharge box (11), and the installation shaft (13) extends upward into the drying tank (2). The cleaning assembly includes a spiral blade (14) installed on the installation shaft (13), and the spiral blade (14) is located in the lower part of the inner cavity of the drying tank (2).

5. The spray drying apparatus for natamycin production according to claim 4, characterized in that: The top of the mounting shaft (13) is fixed with a mounting bracket, and two cleaning plates (15) are symmetrically installed on the mounting bracket. The cleaning plates (15) are arranged in a spiral shape and are in contact with the inside of the drying tank (2).

6. The spray drying apparatus for natamycin production according to claim 4, characterized in that: The discharge box (11) is cylindrical, and the side of the discharge box (11) is provided with a discharge port that communicates with its inner cavity. A movable sealing plate is provided at the discharge port on the side of the discharge box (11). Several arc-shaped push plates (16) are fixed on the side of the mounting shaft (13), and the several arc-shaped push plates (16) are all located inside the discharge box (11).

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