Roller heatable double-roller granulator for preparing halogen-free flame retardant

Abstract

The utility model relates to a roller heatable double-roller granulator for preparing a halogen-free flame retardant, which belongs to the technical field of granulators and comprises a processing box with a feed hopper, a discharge port is arranged at the bottom of the processing box, two compression rollers capable of moving oppositely are rotatably mounted in the discharge port, hollow structures are arranged in the compression rollers, and the discharge port is communicated with the processing box. One side of the processing box is provided with a synchronous assembly used for opposite movement of the pressing rollers, the other side of the processing box is provided with a driving motor used for rotation of the pressing rollers, the other side of the processing box is provided with a hot air assembly used for conveying hot air into the pressing rollers, and cleaning roller brushes used for cleaning the pressing rollers are symmetrically arranged in the processing box. According to the device, the granulation requirements of different materials can be met through heating of the compression roller, the heating function is beneficial to better compaction and forming of the materials, the granulation efficiency and quality are improved, and the device can clean and sweep materials attached to the surface of the compression roller through synchronous rotation of the cleaning roller brush and the compression roller, so that the working efficiency of the device is improved.

Description

Technical Field

[0001] This utility model relates to a roller granulator for preparing halogen-free flame retardants with a roller that can be heated, belonging to the field of granulator technology. Background Technology

[0002] The double-roll granulator adopts the principle of double-roll extrusion. The material is squeezed and sheared by two parallel rollers, causing the material to agglomerate into granules. Specifically, the material enters between the two rollers from the upper feed port. Under the action of strong extrusion and shearing force, the material agglomerates into dense and hard large cakes. This process is called the extrusion process. Subsequently, the extruded cakes are crushed and screened into granular materials. This process is called the granulation process.

[0003] Existing double-roll granulators typically use two pressure rollers to squeeze materials during operation. However, due to temperature issues, the material may not be squeezed sufficiently during the two pressure rollers, which requires improvement. Additionally, after prolonged use, material may adhere to the surface of the pressure rollers, making them difficult to clean. Therefore, the existing equipment still needs improvement.

[0004] In view of this, this utility model is hereby proposed. Utility Model Content

[0005] The purpose of this invention is to provide a roller-heatable halogen-free flame retardant preparation double-roller granulator to solve the above problems, which can comprehensively monitor the transmitter in the cabinet.

[0006] This utility model achieves the above-mentioned objective through the following technical solution: a roller-heatable halogen-free flame retardant preparation double-roller granulator, comprising a processing box with a feed hopper, a discharge port at the bottom of the processing box, two pressure rollers that can move in opposite directions being rotatably installed inside the discharge port, the pressure rollers having a hollow structure, a synchronization component for the opposite movement of the pressure rollers being provided on one side of the processing box, a drive motor for the rotation of the pressure rollers being provided on the other side of the processing box, a hot air component for transmitting hot air into the pressure rollers being provided on the other side of the processing box, and cleaning roller brushes for cleaning the pressure rollers being symmetrically arranged inside the processing box.

[0007] Preferably, in order to drive the pressure roller to rotate through the rotation of the synchronous gear, the synchronization component includes synchronous gears, and two synchronous gears are provided. The synchronous gears are rotatably mounted on one side of the processing box through a synchronous rod, and the synchronous gears mesh with each other for transmission.

[0008] Preferably, in order to transmit the driving force of the synchronizing gear to the pressure roller, the synchronizing rod passes through one side of the outer wall of the processing box and is fixedly connected to each other between the pressure rollers.

[0009] Preferably, in order to provide driving force to the pressure rollers through the drive motor, a motor plate is fixedly installed on one side surface of the processing box, the drive motor is fixedly installed on the surface of the motor plate, and an air supply pipe is fixedly installed at the output end of the drive motor. The air supply pipe passes through one side outer wall of the processing box and communicates with the pressure rollers.

[0010] Preferably, in order to provide a heat source for the inside of the pressure roller by means of the hot air fan, the hot air assembly includes a hot air fan, a fan plate is fixedly installed on one side surface of the processing box, the hot air fan is fixedly installed on the surface of the fan plate, and a first air outlet pipe and a second air outlet pipe are fixedly installed at the output end of the hot air fan, and one end of the first air outlet pipe is connected to the air supply pipe through a first rotary joint.

[0011] Preferably, in order to transmit gas into the pressure roller through the first air outlet and the second air outlet while the pressure roller is rotating, and to supply gas to the pressure roller and the air supply pipe while the pressure roller and the air supply pipe are rotating through the first rotary joint and the second rotary joint, a second rotary joint is provided at one end of the second air outlet, and one end of the second air outlet with the second rotary joint passes through one side of the outer wall of the processing box and is connected between the pressure rollers.

[0012] Preferably, in order to enable the cleaning roller brush to rotate with the pressure roller through the cooperation of the driven sprocket, the driving sprocket, and the synchronization chain, and thus clean the pressure roller through the cleaning roller brush, the cleaning roller brush has a hollow internal structure. An extension rod is fixedly installed at one end of the cleaning roller brush. One end of the extension rod penetrates one side of the inner wall of the processing box. A driven sprocket is sleeved on the surface of one end of the extension rod. A driving sprocket is sleeved on the surface of one end of the synchronization rod in the synchronization assembly. A synchronization chain is sleeved on the surfaces of the driven sprocket and the driving sprocket. Water outlet holes are evenly opened on the circumferential surface of the cleaning roller brush.

[0013] Preferably, in order to provide clean water to the water pump via an external water source, and then to provide clean water to the cleaning roller brush via the water pump, thereby enabling the cleaning and washing of the pressure roller surface, a fixing plate is fixedly installed on one side surface of the processing box, a water pump is fixedly installed on the upper surface of the fixing plate, a water outlet pipe is fixedly installed at the output end of the water pump, one end of the water outlet pipe is connected to the cleaning roller brush, and the one end of the water outlet pipe is rotatably connected to the cleaning roller brush.

[0014] Preferably, in order to collect the material adhering to the pressure roller, the bottom of the processing box is provided with discharge holes at both ends, and a storage box is provided below the discharge holes. The bottom of the processing box is provided with hanging rods on both ends of the outer wall, and hooks are rotatably installed on both ends of the storage box. The hanging rods and the hooks are interlocked with each other.

[0015] The beneficial effects of this utility model are: 1. This device can adapt to the granulation requirements of different materials by heating the pressure roller. The heating function helps the material to be better compacted and shaped, thereby improving granulation efficiency and quality.

[0016] 2. This device can clean and sweep the material adhering to the surface of the pressure roller by synchronously rotating the cleaning roller brush and the pressure roller, which greatly reduces the cleaning efficiency of the pressure roller by the workers and thus improves the working efficiency of the device. In addition, this device has a high degree of automation and strong practicality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram showing the location of the discharge port of this utility model.

[0018] Figure 2 This is a schematic diagram of one side of the processing box of this utility model.

[0019] Figure 3 This is a schematic diagram of the other side of the processing box of this utility model.

[0020] Figure 4 This is a schematic diagram of the internal structure of the processing box of this utility model.

[0021] Figure 5 This is a schematic diagram showing the location of the water outlet of this utility model.

[0022] Figure 6 This is a schematic diagram showing the position of the synchronization chain of this utility model.

[0023] Figure 7 for Figure 4 Enlarged view of the structure at point A in the middle.

[0024] In the diagram: 1. Feed hopper; 2. Processing box; 3. Discharge port; 4. Pressure roller; 5. Synchronization assembly; 501. Synchronization gear; 502. Synchronization rod; 6. Drive motor; 7. Hot air assembly; 701. First air outlet pipe; 702. Second air outlet pipe; 703. First rotary joint; 704. Second rotary joint; 705. Hot air blower; 8. Cleaning roller brush; 9. Motor board; 10. Air supply pipe; 11. Fan board; 12. Extending rod; 13. Driven sprocket; 14. Drive sprocket; 15. Synchronization chain; 16. Water outlet; 17. Fixing plate; 18. Water pump; 19. Water outlet pipe; 20. Miscellaneous storage box; 21. Hanging rod; 22. Hook. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1-7 As shown, a roller-heatable halogen-free flame retardant preparation granulator includes a processing box 2 with a feed hopper 1. A discharge port 3 is located at the bottom of the processing box 2. Two opposing pressure rollers 4 are rotatably mounted inside the discharge port 3. The pressure rollers 4 have a hollow structure. A synchronization component 5 for the opposing movement of the pressure rollers 4 is located on one side of the processing box 2, and a drive motor 6 for the rotation of the pressure rollers 4 is located on the other side. A hot air component 7 for transmitting hot air into the pressure rollers 4 is also located on the other side of the processing box 2. Cleaning roller brushes 8 for cleaning the pressure rollers 4 are symmetrically arranged inside the processing box 2. This device can heat the pressure rollers 4 through the cooperation of the hot air component 7 and the pressure rollers 4, thereby enabling the extrusion molding of raw materials during the preparation of halogen-free flame retardants. This results in good plasticity, which is beneficial for subsequent granulation. Furthermore, the cleaning roller brushes 8 clean the pressure rollers 4 while they rotate, improving their cleanliness and reducing worker workload.

[0027] like Figure 4 and Figure 7As shown, the synchronization component 5 includes two synchronization gears 501. The synchronization gears 501 are rotatably mounted on one side of the processing box 2 via a synchronization rod 502, and mesh with each other for transmission. The synchronization rod 502 passes through the outer wall of one side of the processing box 2 and is fixedly connected to the pressure rollers 4. A motor plate 9 is fixedly mounted on one side surface of the processing box 2, and a drive motor 6 is fixedly mounted on the surface of the motor plate 9. An air supply pipe 10 is fixedly mounted on the output end of the drive motor 6, passing through the outer wall of one side of the processing box 2 and communicating with the pressure rollers 4. The hot air component 7 includes a hot air blower 705. A fan plate 11 is fixedly mounted on one side surface of the processing box 2, and the hot air blower 705 is fixedly mounted on the surface of the fan plate 11. A first air outlet pipe 701 and a second air outlet pipe 702 are fixedly mounted on the output end of the hot air blower 705. One end of the first air outlet pipe 701 is connected to the air supply pipe 10 via a first rotary joint 703. One end of the second air outlet pipe 702 is provided with a second rotary joint 704. One end of the second air outlet pipe 702 with the second rotary joint 704 passes through one side of the outer wall of the processing box 2 and is connected between the pressure rollers 4, so that the pressure roller 4 on one side of the processing box 2 can be rotated under the drive of the drive motor 6. At this time, the rotation of the pressure roller 4 on one side can drive the rotation of the synchronous gear 501 on one side through the synchronous rod 502. At this time, through the rotation of the two meshing synchronous gears 501, the pressure roller 4 can squeeze the material into a sheet shape. And through the opening of the hot air blower 705 in the hot air assembly 7, the hot air in the hot air blower 705 can be transmitted into the pressure roller 4 through the first air outlet pipe 701 and the second air outlet pipe 702, thereby heating the pressure roller 4. The first rotary joint 703 and the second rotary joint 704 are existing structures, and their function is to connect the first air outlet pipe 701 to the air conveying pipe 10 while the air conveying pipe 10 is rotating.

[0028] like Figure 5 and Figure 6As shown, the cleaning roller brush 8 has a hollow internal structure. An extension rod 12 is fixedly installed at one end of the cleaning roller brush 8, penetrating one side of the inner wall of the processing box 2. A driven sprocket 13 is fitted onto the surface of one end of the extension rod 12. A driving sprocket 14 is fitted onto one end of the synchronizing rod 502 in the synchronizing assembly 5. A synchronizing chain 15 is fitted onto the surfaces of the driven sprocket 13 and the driving sprocket 14. Water outlet holes 16 are evenly distributed on the circumferential surface of the cleaning roller brush 8. A fixing plate 17 is fixedly installed on one side of the processing box 2. A water pump 18 is fixedly installed on the upper surface of the fixing plate 17. A water outlet pipe 19 is fixedly installed at the output end of the water pump 18. One end of the water outlet pipe 19 is connected to the cleaning roller brush 8, and the two ends of the water outlet pipe 19 are rotatably connected to each other. Impurity outlet holes are opened at both ends of the bottom of the processing box 2. A waste storage box 20 is located below the impurity outlet holes. Hanging rods 21 are installed on the outer walls of both ends of the bottom of the processing box 2. Hooks 22 are rotatably installed on both ends of the outer wall of the 20. The hooks 22 are interlocked with the hanging rod 21 so that after the pressure roller 4 rotates, the synchronous gear 501 can be engaged through the synchronous rod 502. Then, through the cooperation of the driving sprocket 14, the driven sprocket 13 and the synchronous chain 15, the cleaning roller brush 8 can rotate with the pressure roller 4. At this time, the cleaning roller brush 8 can clean the pressure roller 4, and the cleaned debris will fall into the debris box 20 from the debris outlet hole, thereby realizing the collection of debris. When the pressure roller 4 needs to be cleaned, the operator connects to the water pump 18 through an external water source. One end of the water outlet pipe 19 of the water pump 18 can be equipped with a rotary joint, which is then connected to the cleaning roller brush 8. The cleaning roller brush 8 is provided with a water outlet hole 16 inside. The design of the water outlet hole 16 allows the cleaning roller brush 8 to clean the pressure roller 4 at the same time.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0030] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A roller-heatable halogen-free flame retardant preparation double-roller granulator, comprising a processing box (2) with a feed hopper (1), wherein the bottom of the processing box (2) is provided with a discharge port (3), characterized in that: Two pressure rollers (4) that can move in opposite directions are rotatably installed inside the discharge port (3). The pressure rollers (4) are hollow. A synchronization component (5) for the opposite movement of the pressure rollers (4) is provided on one side of the processing box (2). A drive motor (6) for the rotation of the pressure rollers (4) is provided on the other side of the processing box (2). A hot air component (7) for transmitting hot air into the pressure rollers (4) is provided on the other side of the processing box (2). Cleaning roller brushes (8) for cleaning the pressure rollers (4) are symmetrically arranged inside the processing box (2).

2. The roller-heatable halogen-free flame retardant preparation double-roller granulator according to claim 1, characterized in that: The synchronization component (5) includes a synchronization gear (501), and there are two synchronization gears (501). The synchronization gears (501) are rotatably mounted on one side of the processing box (2) via a synchronization rod (502), and the synchronization gears (501) mesh with each other for transmission.

3. The roller-heatable halogen-free flame retardant preparation double-roller granulator according to claim 2, characterized in that: The synchronizing rod (502) passes through one side of the outer wall of the processing box (2) and is fixedly connected to each other between the pressure rollers (4).

4. The roller-heatable halogen-free flame retardant preparation double-roller granulator according to claim 1, characterized in that: A motor plate (9) is fixedly installed on one side surface of the processing box (2), and the drive motor (6) is fixedly installed on the surface of the motor plate (9). An air supply pipe (10) is fixedly installed at the output end of the drive motor (6). The air supply pipe (10) passes through one side outer wall of the processing box (2) and is interconnected between the pressure rollers (4).

5. The roller-heatable halogen-free flame retardant preparation double-roller granulator according to claim 4, characterized in that: The hot air assembly (7) includes a hot air blower (705). A fan plate (11) is fixedly installed on one side surface of the processing box (2). The hot air blower (705) is fixedly installed on the surface of the fan plate (11). A first air outlet pipe (701) and a second air outlet pipe (702) are fixedly installed at the output end of the hot air blower (705). One end of the first air outlet pipe (701) is connected to the air supply pipe (10) through a first rotary joint (703).

6. The roller-heatable halogen-free flame retardant preparation double-roller granulator according to claim 5, characterized in that: One end of the second air outlet pipe (702) is provided with a second rotary joint (704). One end of the second air outlet pipe (702) with the second rotary joint (704) passes through one side of the outer wall of the processing box (2) and is connected between the pressure rollers (4).

7. The roller-heatable halogen-free flame retardant preparation double-roller granulator according to claim 1, characterized in that: The cleaning roller brush (8) has a hollow internal structure. One end of the cleaning roller brush (8) is fixedly installed with an extension rod (12). One end of the extension rod (12) penetrates one side of the inner wall of the processing box (2). A driven sprocket (13) is sleeved on one end of the extension rod (12). A driving sprocket (14) is sleeved on one end of the synchronizing rod (502) in the synchronizing assembly (5). A synchronizing chain (15) is sleeved on the surfaces of the driven sprocket (13) and the driving sprocket (14). Water outlet holes (16) are evenly opened on the circumferential surface of the cleaning roller brush (8).

8. The roller-heatable halogen-free flame retardant preparation double-roller granulator according to claim 1, characterized in that: A fixing plate (17) is fixedly installed on one side surface of the processing box (2). A water pump (18) is fixedly installed on the upper surface of the fixing plate (17). A water outlet pipe (19) is fixedly installed at the output end of the water pump (18). One end of the water outlet pipe (19) is connected to the cleaning roller brush (8), and one end of the water outlet pipe (19) is rotatably connected to the cleaning roller brush (8).

9. The roller-heatable halogen-free flame retardant preparation double-roller granulator according to claim 1, characterized in that: The processing box (2) has discharge holes at both ends of the bottom. A storage box (20) is provided below the discharge holes. Hanging rods (21) are provided on the outer walls of both ends of the bottom of the processing box (2). Hooks (22) are rotatably installed on the outer walls of both ends of the storage box (20). The hanging rods (21) and the hooks (22) are interlocked.

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