Rotary drum type rotary drum granulator

Abstract

The utility model relates to the technical field of pelletizers, and discloses a rotary drum type drum pelletizer which comprises a rack, a rotary drum and a rotary drum, the discharging structure comprises a guide pipe, guide plates and a sieve plate, the guide pipe and the rack are fixedly installed, the guide pipe is provided with a cavity, the multiple guide plates are fixedly arranged in the cavity of the guide pipe, the guide plates divide a cavity of the rotary drum to form a turn-back channel, and the sieve plate is arranged below the guide pipe. The method comprises the steps that firstly, falling formed particles are guided through a guide plate in a guide pipe, so that the particles continuously flow back and forth in the falling process in the guide pipe, hot air is fed into the guide pipe in cooperation with a hot air box to preliminarily dry the flowing particles, the dried particles fall on a sieve plate to be screened, and it is guaranteed that the sizes of the formed particles tend to be consistent; and the particles are screened after being dried, so that the probability of damage caused by screening of the particles which are not completely hardened can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of granulators, in particular to a rotary drum granulator. Background Art

[0002] The rotary drum granulator is a key equipment used to shape materials into a specific shape.

[0003] The prior art discloses a rotary drum organic fertilizer granulator (publication number: CN221310552U), which includes a rotary drum, a driver and two support seats. The discharge end of the rotary drum is provided with a discharge box, and a screening mechanism is provided inside the discharge box. The screening mechanism includes a screen fixedly mounted on the inner wall of the discharge end of the discharge box.

[0004] In the existing technology, the granules after granulation are received by a sieve to achieve screening of the granules. However, the granules after granulation have high humidity and low hardness. Vibration on the sieve will cause damage and breakage of the granules, affecting the integrity of the granules. There is room for optimization in the granule screening method and steps.

[0005] For this purpose, we propose a rotary drum granulator. Utility Model Content

[0006] The utility model mainly solves the technical problem that the above-mentioned undried particles may be damaged when directly screened, and provides a rotary drum granulator.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solution, a rotary drum granulator, comprising:

[0008] A frame is provided with a rotating drum, a support frame for limiting the position of the rotating drum is fixedly installed on the frame, a feed port is fixedly installed on one side of the rotating drum, and a discharge port is provided on the other end of the rotating drum;

[0009] The discharge structure is arranged below the discharge port and is used for drying and screening the material. The discharge structure includes a guide tube, a guide plate and a screen plate. The guide tube is fixedly installed on the frame. The guide tube has a cavity. Several guide plates are fixedly arranged in the guide tube cavity. The guide plates separate the drum chamber to form a return channel. The screen plate is arranged below the guide tube, and a vibration motor is fixedly installed at the bottom of the screen plate.

[0010] As a preferred embodiment of the present invention, the discharge structure also includes an exhaust pipe, an air supply pipe and a heating chamber. The guide pipe has a double-layer wall, and a heating chamber is formed between the double-layer walls of the guide pipe. The exhaust pipe and the air supply pipe are fixedly connected to the guide pipe and communicate with the heating chamber. The air supply pipe is connected to a hot air box.

[0011] As a preferred embodiment of the present invention, the guide tube forms a rectangular flat tube structure, the air supply tube is a straight tube, the exhaust tube is a U-shaped bent tube, and the exhaust tube completely extends from the heating chamber to the cavity of the guide tube.

[0012] As a preferred embodiment of the present invention, the guide plate is a rectangular plate, and the length of the guide plate is smaller than the length inside the guide lumen.

[0013] As a preferred embodiment of the present invention, several guide plates are fixedly installed on the inner walls on both sides of the guide tube, one side wall of the guide plate is fixedly connected to the inner wall of the guide tube, and the other side wall of the guide plate forms a free end, and a gap is formed between the free end of the guide plate and the inner wall of the guide tube.

[0014] As a preferred embodiment of the present invention, the guide plate extends obliquely toward the lower end port of the guide tube, and two adjacent guide plates extend obliquely toward opposite directions.

[0015] As a preferred embodiment of the present invention, an elastic telescopic rod is fixedly mounted on the side wall of the frame, and the screen plate is fixedly mounted on the output shaft of the elastic telescopic rod.

[0016] The utility model provides a rotary drum granulator with the following beneficial effects:

[0017] 1. This rotary drum granulator sets a guide tube at the discharge port of the drum, guides the falling formed particles through the guide plate in the guide tube, so that the particles continuously turn back and forth during the falling process in the guide tube, and cooperates with the hot air box to send hot air into the guide tube to preliminarily dry the flowing particles. The dried particles fall on the screen plate and are screened, ensuring that the size of the formed particles tends to be consistent. Secondly, screening the particles after drying can reduce the probability of damage caused by screening due to incomplete hardening of the particles.

[0018] 2. This rotary drum granulator is connected to the hot air box through an air supply pipe. The hot air box is equipped with a fan and a thermocouple. The fan draws air into the hot air box, heats it through the thermocouple, and then sends it into the air supply pipe. The air supply pipe sends the hot air into the heating chamber and then discharges it from the exhaust pipe. The curved exhaust pipe sends the hot air into the cavity of the guide pipe for contact with the particles flowing on the guide plate to achieve drying. The hot air can fully heat the guide tube and the guide plate, and the utilization rate is higher.

[0019] 3. This rotary drum granulator supports the screen plate through a vibration motor and an elastic telescopic rod, so that the screen plate can maintain a certain amplitude of vibration, thereby promoting the screening of particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is one of the overall three-dimensional diagrams of the utility model;

[0021] Figure 2 This is the second overall stereogram of the utility model;

[0022] Figure 3 This is a three-dimensional diagram of the arrangement structure of the utility model;

[0023] Figure 4 This is a partial cutaway view of the guide tube of the utility model;

[0024] Figure 5 This is a three-dimensional diagram of the guide tube of the utility model.

[0025] Legend: 10, rotating drum; 11, supporting frame; 20, guide tube; 21, guide plate; 22, sieve plate; 23, exhaust pipe; 24, air supply pipe; 25, heating chamber. DETAILED DESCRIPTION

[0026] A rotary drum granulator, such as Figure 1 and Figure 2 Shown, including:

[0027] The frame is provided with a rotating drum 10, and a support frame 11 for limiting the rotating drum 10 is fixedly installed on the frame. A feed port is fixedly installed on one side of the rotating drum 10, and a discharge port is provided at the other end of the rotating drum 10. The top of the support frame 11 is rotatably connected to a limiting wheel, and the limiting wheel contacts the outer wall of the rotating drum 10 to limit the rotating drum 10 to ensure the stable rotation of the rotating drum 10. A gear ring should also be fixedly installed on the outer wall of the rotating drum 10, and a motor is fixedly installed on one side of the frame. A gear is fixedly installed on the output shaft of the motor, and the gear is meshed with the gear ring to drive the rotating drum 10 to rotate. A granulating rod is fixedly installed on the inner wall of the rotating drum 10, and the material entering the rotating drum 10 is formed into spherical particles through the rotation of the rotating drum 10. This is an existing well-known technology and will not be described here.

[0028] like Figure 2 、 Figure 3 and Figure 4As shown, the discharge structure is arranged below the discharge port for drying and screening the material, and the discharge structure includes a guide tube 20, a guide plate 21 and a sieve plate 22. The guide tube 20 is fixedly installed with the frame, and the guide tube 20 has a cavity. A plurality of guide plates 21 are fixedly arranged in the guide tube 20 cavity. The guide plates 21 separate the chamber of the drum 10 to form a return channel. The sieve plate 22 is arranged below the guide tube 20, and a vibration motor is fixedly installed at the bottom of the sieve plate 22. The guide plate 21 is a rectangular plate. The length of the guide plate 21 is less than the length in the guide tube 20 cavity. A plurality of guide plates 21 are fixedly installed on the inner walls on both sides of the opposite sides of the guide tube 20, and one side wall of the guide plate 21 is fixedly connected to the inner wall of the guide tube 20. The other side wall of the guide plate 21 forms a free end. A gap is formed between the free end of the guide plate 21 and the inner wall of the guide tube 20. The guide plate 21 extends obliquely toward the lower end of the guide tube 20, and the two adjacent guide plates 21 extend obliquely in opposite directions.

[0029] In this solution, a guide tube 20 is provided at the discharge port of the drum 10, and the falling formed particles are guided by a guide plate 21 in the guide tube 20, so that the particles continuously turn back and forth during the falling process in the guide tube 20, and hot air is sent into the guide tube 20 by a hot air box to preliminarily dry the flowing particles. The dried particles fall on the sieve plate 22 and are screened, thereby ensuring that the size of the formed particles tends to be consistent. Secondly, screening the particles after drying can reduce the probability of damage caused by screening due to incomplete hardening of the particles.

[0030] like Figure 3 、 Figure 4 and Figure 5 As shown, the discharge structure also includes an exhaust pipe 23, an air supply pipe 24 and a heating chamber 25. The guide pipe 20 has a double-layer wall surface, and a heating chamber 25 is formed between the double-layer walls of the guide pipe 20. The exhaust pipe 23 and the air supply pipe 24 are fixedly connected to the guide pipe 20 and communicate with the heating chamber 25. The air supply pipe 24 is connected to a hot air box. The guide pipe 20 forms a rectangular flat tube structure. The air supply pipe 24 is a straight pipe, and the exhaust pipe 23 is a U-shaped bent pipe. The exhaust pipe 23 extends completely from the heating chamber 25 to the cavity of the guide pipe 20. In this solution, in order to realize the supply of hot air into the cavity of the guide pipe 20, the air supply pipe 24 is connected to the heating chamber 25. The tube 24 is connected to the hot air box, which is equipped with a fan and a thermocouple. The air is sucked into the hot air box by the fan, heated by the thermocouple, and then sent to the air supply pipe 24. The air supply pipe 24 sends the hot air into the heating chamber 25 and then discharges it from the exhaust pipe 23. The curved exhaust pipe 23 sends the hot air into the cavity of the guide tube 20 for contact with the particles flowing on the guide plate 21 to achieve drying. The hot air can fully heat the guide tube 20 and the guide plate 21, and the utilization rate is higher. The upper end of the guide tube 20 is sealed. In order to show the heating chamber 25, the upper end face of the guide tube 20 is not shown in the figure.

[0031] The elastic telescopic rod is not shown in the figure. The elastic telescopic rod is fixedly installed on the side wall of the frame. The sieve plate 22 is fixedly installed on the output shaft of the elastic telescopic rod. The sieve plate 22 is supported by the vibration motor and the elastic telescopic rod, so that the sieve plate 22 can maintain a certain amplitude of vibration, thereby promoting the screening of particles.

[0032] The working principle of the present invention is as follows: a guide tube 20 is provided at the discharge port of the rotating drum 10, and the falling formed particles are guided by the guide plate 21 in the guide tube 20, so that the particles continuously return and flow during the falling process in the guide tube 20, and hot air is sent into the guide tube 20 in conjunction with the hot air box to perform preliminary drying of the flowing particles. In order to realize the feeding of hot air into the cavity of the guide tube 20, the hot air box is connected to the hot air box through the air supply pipe 24, and a fan and a thermocouple are provided in the hot air box. The air is sucked into the hot air box by the fan and then heated by the thermocouple and then sent to the air supply pipe 24. The air supply pipe 24 sends the hot air into the heating cavity 25 and then discharged from the exhaust pipe 23. The curved exhaust pipe 23 sends the hot air into the cavity of the guide tube 20 for contact with the particles flowing on the guide plate 21 to achieve drying. The sieve plate 22 is supported by the vibration motor in conjunction with the elastic telescopic rod, so that the sieve plate 22 can maintain a certain amplitude of shaking, thereby promoting the screening of particles.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A rotary drum granulator, characterized in that: include: A frame is provided with a rotating drum (10), a support frame (11) for limiting the position of the rotating drum (10) is fixedly installed on the frame, a feed port is fixedly installed on one side of the rotating drum (10), and a discharge port is provided at the other end of the rotating drum (10); A discharge structure is provided below the discharge port for drying and screening materials, and comprises a guide tube (20), a guide plate (21) and a screen plate (22). The guide tube (20) is fixedly mounted on the frame, the guide tube (20) has a cavity, a plurality of guide plates (21) are fixedly arranged in the cavity of the guide tube (20), the guide plates (21) separate the chamber of the drum (10) to form a return channel, the screen plate (22) is provided below the guide tube (20), and a vibration motor is fixedly mounted on the bottom of the screen plate (22).

2. The rotary drum granulator according to claim 1, characterized in that: The discharge structure further comprises an exhaust pipe (23), an air supply pipe (24) and a heating chamber (25); the guide pipe (20) has a double-layer wall surface; a heating chamber (25) is formed between the double-layer wall surfaces of the guide pipe (20); the exhaust pipe (23) and the air supply pipe (24) are both fixedly connected to the guide pipe (20) and communicate with the heating chamber (25); the air supply pipe (24) is connected to a hot air box.

3. The rotary drum granulator according to claim 2, characterized in that: The guide tube (20) forms a rectangular flat tube structure, the air supply tube (24) is a straight tube, the exhaust tube (23) is a U-shaped bent tube, and the exhaust tube (23) completely extends from the heating chamber (25) to the cavity of the guide tube (20).

4. The rotary drum granulator according to claim 1, characterized in that: The guide plate (21) is a rectangular plate, and the length of the guide plate (21) is smaller than the length inside the guide tube (20).

5. The rotary drum granulator according to claim 1, characterized in that: A plurality of guide plates (21) are fixedly mounted on opposite inner walls of the guide tube (20), one side wall of the guide plate (21) is fixedly connected to the inner wall of the guide tube (20), and the other side wall of the guide plate (21) forms a free end, forming a gap between the free end of the guide plate (21) and the inner wall of the guide tube (20).

6. The rotary drum granulator according to claim 1, characterized in that: The guide plate (21) extends obliquely toward the lower end of the guide tube (20), and two adjacent guide plates (21) extend obliquely toward opposite directions.

7. The rotary drum granulator according to claim 1, characterized in that: An elastic telescopic rod is fixedly mounted on the side wall of the frame, and the screen plate (22) is fixedly mounted on the output shaft of the elastic telescopic rod.

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