A multifunctional spray dryer

Abstract

The application relates to the technical field of mechanical engineering, in particular to a multifunctional spray drying machine which comprises an outer bin, the inside of the outer bin is provided with a drying bin, a discharge pipe is fixedly communicated with the bottom of the drying bin, a dust remover is arranged on one side of the drying bin, the upper surface of the dust remover is fixedly communicated with a three-way pipe, a positioning box is arranged above the three-way pipe, the upper surface of the positioning box is fixedly communicated with an exhaust pipe, a heat uniformizing pipe is fixedly connected to the outer surface of the drying bin, and an air induction fan is fixedly installed on the outer surface of the outer bin. The heat uniformizing pipe and the exhaust pipe are arranged, the heat uniformizing pipe and the exhaust pipe are matched with each other, waste gas can be discharged through two paths, the heat uniformizing pipe can assist in preheating or cooling the drying bin, and the energy consumption is reduced and the drying efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of mechanical engineering, and in particular to a multifunctional spray dryer. Background Technology

[0002] Spray dryers are direct, continuous hot air drying equipment suitable for solutions, suspensions, pastes, and colloidal materials. Atomization uses three types of atomizers to atomize the material into droplets, which are then sprayed directly into the tower. The dispersed droplets are suspended in the hot airflow, and the drying of the wet material is completed during the acceleration and transport process within the airflow. Its working principle involves using a high pressure of 2-20 MPa to send the filtered liquid material into a pressure atomizer, where it is atomized into small droplets. After atomization (with a significantly increased surface area), the droplets come into full contact with the hot air, rapidly completing the drying process within 10-30 seconds, yielding a powder or fine granular finished product.

[0003] Existing spray dryers require preheating of the drying chamber before drying materials, which increases energy consumption. Furthermore, the temperature needs to be kept relatively constant during the drying process. If the temperature is too low, the drying will be incomplete, resulting in high material moisture content and low drying efficiency. If the temperature is too high, the material is prone to scorching and deterioration, and may stick to the inside of the drying chamber, causing material loss.

[0004] Regarding the aforementioned technologies, the inventors have discovered the following deficiencies: the existing technologies lack an auxiliary air guiding mechanism, making it inconvenient to adjust the internal temperature of the spray dryer. In order to address the inconvenience of temperature adjustment in the existing technologies, this application proposes to install components such as a heat equalization pipe and an exhaust pipe, thereby enabling the exhaust gas generated during drying to be discharged through different paths, thus assisting in the temperature adjustment of the drying chamber, thereby achieving the effects of reducing energy consumption and improving drying efficiency. Utility Model Content

[0005] To facilitate energy reduction and improve drying efficiency, this application provides a multi-functional spray dryer.

[0006] This application provides a multi-functional spray dryer, which adopts the following technical solution: A multi-functional spray dryer includes an outer chamber, inside which a drying chamber is provided. A discharge pipe is fixedly connected to the bottom of the drying chamber. A dust collector is provided on one side of the drying chamber. A three-way pipe is fixedly connected to the upper surface of the dust collector. A positioning box is provided above the three-way pipe. An exhaust pipe is fixedly connected to the upper surface of the positioning box. A heat equalization pipe is fixedly connected to the outer surface of the drying chamber. One end of the heat equalization pipe is fixedly connected to the top end of the exhaust pipe. An induced draft fan is fixedly installed on the outer surface of the outer chamber. The input end of the induced draft fan is fixedly connected to the top end of the exhaust pipe. An air guide hood is fixedly connected to the outer surface of the positioning box.

[0007] Optionally, a discharge pipe is fixedly connected to the lower surface of the dust collector, and the bottom end of the discharge pipe is connected to a collection tank through a clamp assembly.

[0008] Optionally, a first valve ball is rotatably connected inside the positioning box, and a first gear is rotatably connected to the outer surface of the positioning box.

[0009] Optionally, a support shell is fixedly connected to the outer surface of the positioning box, and a rotating handle is rotatably connected to the outer surface of the support shell.

[0010] Optionally, a scraping assembly is rotatably installed inside the drying chamber, and a motor is fixedly installed on the upper surface of the drying chamber.

[0011] Optionally, a drive gear is rotatably connected inside the support shell, and the drive gear is fixedly connected to the handle.

[0012] Optionally, a second valve ball is rotatably connected inside the positioning box, and a second gear is rotatably connected to the outer surface of the positioning box.

[0013] Optionally, a base plate is fixedly connected to the bottom of the outer compartment, a support plate is fixedly connected to the upper surface of the base plate, and a controller is fixedly installed on the outer surface of the support plate.

[0014] In summary, this application includes the following beneficial technical effects: 1. This utility model, by setting up components such as a heat equalization pipe and an exhaust pipe, allows the exhaust gas to be discharged through two paths through the cooperation between the heat equalization pipe and the exhaust pipe. This enables the heat equalization pipe to provide auxiliary preheating or cooling to the drying chamber, thereby achieving the effect of reducing energy consumption and improving drying efficiency by setting up the heat equalization pipe and the exhaust pipe.

[0015] 2. This utility model, by providing components such as a drive gear and a rotating handle, and through the cooperation between the drive gear and the rotating handle, enables the rotating handle and the drive gear to simultaneously drive the first valve ball and the second valve ball to rotate via the first gear and the second gear, thereby achieving the effect of adjusting the exhaust gas direction by setting the drive gear and the rotating handle. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application; Figure 2 This is a schematic diagram of the internal structure of the outer warehouse in an embodiment of this application; Figure 3 This is a schematic diagram of the internal structure of the positioning box in an embodiment of this application; Figure 4 This is a schematic diagram of the drive gear structure in an embodiment of this application; Figure 5 This is a schematic diagram of the structure of the scraping component in the embodiments of this application.

[0017] Reference numerals in the attached diagram: 1. Outer chamber; 2. Drying chamber; 3. Discharge pipe; 4. Dust collector; 5. Three-way pipe; 6. Positioning box; 7. Exhaust pipe; 8. Heat equalization pipe; 9. Exhaust fan; 10. Air guide hood; 11. Discharge pipe; 12. Collection tank; 13. First valve ball; 14. First gear; 15. Support shell; 16. Rotary handle; 17. Scraper assembly; 18. Drive gear; 19. Second valve ball; 20. Second gear; 21. Support plate; 22. Controller. Detailed Implementation

[0018] The following is in conjunction with the appendix Figure 1-5 The figure provides a further detailed description of this application.

[0019] This application discloses a multifunctional spray dryer. For example... Figure 1 , 2As shown in Figure 3, a multi-functional spray dryer includes an outer chamber 1. A hot air blower is mounted on the outer surface of the outer chamber 1. The output end of the hot air blower is connected to the interior of a drying chamber 2 via a pipe. An atomizing nozzle is installed on the inner top wall of the drying chamber 2. A temperature sensor is installed inside the drying chamber 2. A peristaltic pump is fixedly installed on the top of the drying chamber 2. The output end of the peristaltic pump is connected to the atomizing nozzle via a hose. The input end of the peristaltic pump is connected to a container holding liquid material via a hose. A support ring is fixedly connected to the inner wall of the outer chamber 1. The unit contains a drying chamber 2, the outer surface of which is fixedly connected to the interior of the outer chamber 1 via a support ring. A discharge pipe 3 is fixedly connected to the bottom of the drying chamber 2 for discharging materials and exhaust gas. A dust collector 4 is installed on one side of the drying chamber 2; this dust collector 4 is a conventional bag filter. The other end of the discharge pipe 3 is connected to the interior of the dust collector 4. A three-way pipe 5 is fixedly connected to the upper surface of the dust collector 4. A positioning box 6 is installed above the three-way pipe 5, and the other two ends of the three-way pipe 5 are evenly connected to the interior of the positioning box 6. The upper surface of the positioning box 6 is fixedly connected to an exhaust pipe 7. The outer surface of the drying chamber 2 is fixedly connected to a heat equalizing pipe 8, which has a hollow spiral structure. One end of the heat equalizing pipe 8 is fixedly connected to the top end of the exhaust pipe 7. An induced draft fan 9 is fixedly installed on the outer surface of the outer chamber 1. The input end of the induced draft fan 9 is fixedly connected to the top end of the exhaust pipe 7. The induced draft fan 9 is used to extract the air from the exhaust pipe 7 and the heat equalizing pipe 8. An air guide hood 10 is fixedly connected to the outer surface of the positioning box 6. A filter screen is fixedly installed on the outer surface of the air guide hood 10. 2. During preheating, the hot air blower blows hot air into the drying chamber 2. The gas inside the drying chamber 2 enters the dust collector 4 through the discharge pipe 3, and then enters the positioning box 6 through the three-way pipe 5. When the exhaust gas enters the uniform heating pipe 8 through the positioning box 6, the exhaust gas can be used to assist in heating the drying chamber 2 through the uniform heating pipe 8, thereby increasing the heating speed and reducing energy consumption. When the exhaust gas enters the exhaust pipe 7 through the positioning box 6, the low-temperature air outside enters the uniform heating pipe 8 through the air guide hood 10 and the positioning box 6, thereby achieving auxiliary cooling of the drying chamber 2.

[0020] Please see Figure 1 The bottom of the outer compartment 1 is fixedly connected to a base plate, and the upper surface of the base plate is fixedly connected to a support plate 21. The support plate 21 is fixedly connected to the outer surface of the dust collector 4. A controller 22 is fixedly installed on the outer surface of the support plate 21. The controller 22 is used to control the start and stop of components such as the hot air blower, peristaltic pump, and induced draft fan 9, and to adjust the operating parameters.

[0021] Please see Figure 3 , 4 The positioning box 6 is rotatably connected to a first valve ball 13, the positioning box 6 is rotatably connected to a first gear 14, the positioning box 6 is rotatably connected to a second valve ball 19, and the positioning box 6 is rotatably connected to a second gear 20.

[0022] Please see Figure 3 , 4 The first gear 14 and the first valve ball 13 are fixedly connected, and the second gear 20 and the second valve ball 19 are fixedly connected. The first valve ball 13 can adjust the connection between components such as the heat equalization pipe 8, the air guide shroud 10 and the three-way pipe 5 by rotation. The second valve ball 19 can adjust the connection between the exhaust pipe 7, the positioning box 6 and the three-way pipe 5 by rotation.

[0023] Please refer to 2, 3, and 4. The outer surface of the positioning box 6 is fixedly connected to the support shell 15. The outer surface of the support shell 15 is rotatably connected to the handle 16. The inside of the support shell 15 is rotatably connected to the drive gear 18. The drive gear 18 is fixedly connected to the handle 16.

[0024] Please see Figure 2 , 3 4. The drive gear 18 is rotatably connected to the positioning box 6. The drive gear 18 meshes with the first gear 14 and the second gear 20. The handle 16 can drive the first gear 14 and the second gear 20 to rotate simultaneously through the drive gear 18.

[0025] Please see Figure 1 , 2 3. A discharge pipe 11 is fixedly connected to the lower surface of the dust collector 4. The bottom end of the discharge pipe 11 is connected to the collection tank 12 through a clamp assembly. When the dried material mixed with the exhaust gas enters the interior of the dust collector 4, the exhaust gas is discharged through the three-way pipe 5. After the material is obstructed, it is discharged from the discharge pipe 11 and falls into the interior of the collection tank 12 after being blown by pulse air.

[0026] Please see Figure 1 , 2 5. A scraping assembly 17 is rotatably installed inside the drying chamber 2. The scraping assembly 17 is in contact with the inner wall of the drying chamber 2. A motor is fixedly installed on the upper surface of the drying chamber 2. The output end of the motor is fixedly connected to the scraping assembly 17. The motor can drive the scraping assembly 17 to rotate and clean the inner wall of the drying chamber 2, thereby scraping off the material attached to the inner wall of the drying chamber 2.

[0027] The implementation principle of a multi-functional spray dryer according to an embodiment of this application is as follows: A hot air blower is started to preheat the interior of the drying chamber 2. An induced draft fan 9 is started, and the hot air inside the drying chamber 2 enters the dust collector 4 through the discharge pipe 3, then passes through the three-way pipe 5 and enters the positioning box 6. At this time, the exhaust pipe 7 and the three-way pipe 5 are blocked by a second valve ball 19, and the heat equalization pipe 8 and the three-way pipe 5 are connected by a first valve ball 13. The air guide hood 10 and the heat equalization pipe 8 are blocked by the first valve ball 13. After entering the heat equalization pipe 8, the hot air is discharged through the induced draft fan 9, thus achieving auxiliary heating of the drying chamber 2. A peristaltic pump and atomizing nozzle are started, and the atomized material is heated into powdery solid particles. The mixed exhaust gas exits from the discharge pipe. Pipe 3 enters the interior of dust collector 4, and then enters the interior of collection tank 12 through discharge pipe 11. When it is necessary to cool down drying chamber 2, drive gear 18 is rotated by handle 16. Drive gear 18 drives first gear 14 and second gear 20 to rotate. First gear 14 drives first valve ball 13 to rotate. The heat equalization pipe 8 and three-way pipe 5 are blocked by first valve ball 13. Heat equalization pipe 8 and air guide hood 10 are connected through first valve ball 13. Exhaust pipe 7 and three-way pipe 5 are connected through second valve ball 19. High temperature exhaust gas enters the interior of exhaust pipe 7. Low temperature air from outside enters the interior of heat equalization pipe 8 through air guide hood 10 and is finally discharged through induced draft fan 9 to achieve cooling of drying chamber 2.

[0028] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multifunctional spray dryer, comprising an outer chamber (1), wherein a drying chamber (2) is disposed inside the outer chamber (1), characterized in that: The bottom of the drying chamber (2) is fixedly connected to the discharge pipe (3). A dust collector (4) is provided on one side of the drying chamber (2). A three-way pipe (5) is fixedly connected to the upper surface of the dust collector (4). A positioning box (6) is provided above the three-way pipe (5). An exhaust pipe (7) is fixedly connected to the upper surface of the positioning box (6). A heat equalization pipe (8) is fixedly connected to the outer surface of the drying chamber (2). One end of the heat equalization pipe (8) is fixedly connected to the top end of the exhaust pipe (7). An induced draft fan (9) is fixedly installed on the outer surface of the outer chamber (1). The input end of the induced draft fan (9) is fixedly connected to the top end of the exhaust pipe (7). An air guide hood (10) is fixedly connected to the outer surface of the positioning box (6).

2. The multifunctional spray dryer according to claim 1, characterized in that: The lower surface of the dust collector (4) is fixedly connected to a discharge pipe (11), and the bottom end of the discharge pipe (11) is connected to a collection tank (12) through a clamp assembly.

3. The multifunctional spray dryer according to claim 1, characterized in that: The first valve ball (13) is rotatably connected inside the positioning box (6), and the first gear (14) is rotatably connected to the outer surface of the positioning box (6).

4. A multifunctional spray dryer according to claim 1, characterized in that: The outer surface of the positioning box (6) is fixedly connected to a support shell (15), and the outer surface of the support shell (15) is rotatably connected to a handle (16).

5. A multifunctional spray dryer according to claim 1, characterized in that: The drying chamber (2) is equipped with a scraping assembly (17) that rotates inside, and a motor is fixedly installed on the upper surface of the drying chamber (2).

6. A multifunctional spray dryer according to claim 4, characterized in that: The support shell (15) is rotatably connected to a drive gear (18), which is fixedly connected to a handle (16).

7. A multifunctional spray dryer according to claim 1, characterized in that: The positioning box (6) is rotatably connected to a second valve ball (19), and the positioning box (6) is rotatably connected to a second gear (20) on its outer surface.

8. A multifunctional spray dryer according to claim 1, characterized in that: The bottom of the outer compartment (1) is fixedly connected to a base plate, and a support plate (21) is fixedly connected to the upper surface of the base plate. A controller (22) is fixedly installed on the outer surface of the support plate (21).

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