Fire retardant heating reaction device

Abstract

The utility model discloses a flame retardant heating reaction device. The flame retardant heating reaction device comprises a shell and a driving assembly, an inner cylinder is arranged in the shell, a spiral piece is arranged on the outer arc face of the inner cylinder and fixedly connected with the inner arc face of the shell, a supporting shaft is rotationally connected to the upper end of the interior of the inner cylinder, a supporting beam is arranged at the lower end of the supporting shaft, rotating shafts are rotationally connected to the left end and the right end of the supporting beam, and three vertically-staggered material stirring pieces are arranged on the outer arc face of each rotating shaft. Rectangular holes which are evenly distributed are formed in the side faces of the material stirring pieces. The driving assembly is used for driving the rotating shaft to rotate and revolve, a controller is arranged at the upper end of the inner barrel, and the input end of the controller is electrically connected with an external power source. According to the flame retardant heating reaction device, the heating uniformity of the inner barrel is good, and the flame retardant at the center of the inner barrel and the flame retardant at the barrel wall can be promoted to be exchanged; the heating uniformity is good, and a good heating reaction effect on the flame retardant is achieved.

Description

Technical Field

[0001] This utility model relates to the field of flame retardant production technology, specifically to a flame retardant heating reaction device. Background Technology

[0002] Flame retardants are mainly designed for flame retardancy of polymer materials. There are various types of flame retardants, which can be divided into additive flame retardants and reactive flame retardants according to their application methods. Additive flame retardants are added to polymers through mechanical mixing to give the polymers flame retardant properties. During the production of flame retardants, a heating reaction device is used to heat them. Existing heating reaction devices generally provide a heat source outside the heating chamber for heating, and the heat source is distributed in a point-like manner, resulting in poor heating uniformity of the heating chamber. At the same time, the stirring unit generally stirs in the middle of the heating chamber, which can stir the flame retardant, but the stirring effect on the flame retardant at the edge of the chamber wall is poor. The flame retardant at the edge will stay for a long time and is prone to overheating, resulting in poor heating uniformity. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a flame retardant heating reaction device with good heating uniformity of the inner cylinder, which can promote the exchange of flame retardant at the center of the inner cylinder with the flame retardant at the cylinder wall. Good heating uniformity has a good heating reaction effect on the flame retardant, 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 flame retardant heating reaction device, comprising a shell and a driving assembly;

[0005] Outer shell: It has an inner cylinder inside, and a spiral blade is provided on the outer arc surface of the inner cylinder. The spiral blade is fixedly connected to the inner arc surface of the outer shell. A support shaft is rotatably connected to the upper end of the inner cylinder. A support beam is provided at the lower end of the support shaft. Rotating shafts are rotatably connected to the left and right ends of the support beam. Three staggered material-pulling blades are provided on the outer arc surface of the rotating shaft. Rectangular holes are evenly distributed on the side of each material-pulling blade.

[0006] Drive assembly: Used to drive the rotation and revolution of the rotating shaft. Steam can flow along the jacketed spiral of the heating chamber wall, resulting in good heating uniformity of the inner cylinder. At the same time, the internal material-pushing plates can rotate and revolve, which can promote the exchange of flame retardant at the center of the inner cylinder with the flame retardant at the cylinder wall, resulting in good stirring and mixing effect on the flame retardant, and thus good heating reaction effect on the flame retardant.

[0007] Furthermore, a controller is provided at the upper end of the inner cylinder, and the input end of the controller is electrically connected to an external power source for convenient control of electrical appliances.

[0008] Furthermore, the drive assembly includes a motor, a large gear, and a small gear. The motor is located at the upper end of the inner cylinder, and the output shaft of the motor is fixedly connected to the upper end of the support shaft. The upper end of the rotating shaft is provided with a small gear, and the upper side wall of the inner cylinder is provided with a large gear. The small gears are meshed with the large gears. The input end of the motor is electrically connected to the output end of the controller to facilitate the rotation of the rotating shaft.

[0009] Furthermore, the lower surface of the support beam is provided with a protective shell, the upper end of which is rotatably connected to the upper side wall of the inner cylinder. Both the large gear and the small gear are located inside the protective shell to protect the internal components.

[0010] Furthermore, a support pipe is rotatably connected to the upper end of the discharge port at the lower end of the inner cylinder, and a connecting strip is provided at the upper end of the support pipe. The lower end of the rotating shaft is rotatably connected to the connecting strip, thereby improving the structural strength of the rotating shaft.

[0011] Furthermore, the lower surface of the connecting strip is provided with symmetrically distributed comb plates, which are slidably connected to the bottom wall of the inner cylinder for easy material discharge.

[0012] Furthermore, a temperature sensor is provided at the detection hole at the bottom of the housing, and the output of the temperature sensor is electrically connected to the input of the controller to facilitate the detection of the heating temperature.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This flame retardant heating reaction device has the following advantages:

[0014] Steam can flow spirally along the jacket of the heating chamber wall, resulting in good heating uniformity of the inner cylinder. At the same time, the internal material-pushing plates can rotate and revolve, which can promote the exchange of flame retardant in the center of the inner cylinder with the flame retardant on the cylinder wall, resulting in good stirring and mixing effect on the flame retardant, and thus good heating reaction effect on the flame retardant. 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 inner cylinder of this utility model;

[0017] Figure 3 This is an enlarged structural diagram of point A in this utility model;

[0018] Figure 4 This is an enlarged structural diagram of section B of the present invention.

[0019] In the diagram: 1 Outer shell, 2 Inner cylinder, 3 Spiral blade, 4 Support shaft, 5 Support beam, 6 Rotating shaft, 7 Material feeding plate, 8 Drive assembly, 81 Motor, 82 Large gear, 83 Small gear, 9 Controller, 10 Protective shell, 11 Rectangular hole, 12 Connecting strip, 13 Support tube, 14 Temperature sensor, 15 Comb 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 embodiment provides a technical solution: a flame retardant heating reaction device includes a shell 1 and a driving component 8;

[0022] Outer shell 1: It has an inner cylinder 2 inside, and flame retardant is added to the inside of the inner cylinder 2. The outer arc surface of the inner cylinder 2 is provided with spiral blades 3, which are fixedly connected to the inner arc surface of the outer shell 1. The upper air inlet pipe of the outer shell 1 is connected to the external heating steam, and the lower air outlet pipe of the outer shell 1 is connected to the steam recovery pipe. The steam spirals down along the spiral blades 3 inside the sandwich between the outer shell 1 and the inner cylinder 2 and then flows out through the air outlet pipe. The spiral flow of steam can uniformly heat the inner cylinder 2. The upper end of the inner cylinder 2 is rotatably connected to a support shaft 4, and the lower end of the support shaft 4 is provided with a support beam 5. The left side of the support beam 5... The right ends are rotatably connected to a rotating shaft 6. Three staggered material-pulling blades 7 are provided on the outer arc surface of each rotating shaft 6. The rotating shaft 6 drives the material-pulling blades 7 to rotate, thereby agitating the flame retardant inside the inner cylinder 2. This facilitates the exchange of flame retardant between the center and the cylinder wall. Simultaneously, the rotation of the support beam 5 stirs the flame retardant around the perimeter, ensuring uniform heating. The sides of each material-pulling blade 7 have evenly distributed rectangular holes 11. These holes reduce the rotational resistance of the blades and facilitate the dispersion of the flame retardant. The rectangular holes 11 on the rotating shaft 6 are staggered vertically, allowing for layered movement of the flame retardant and providing excellent mixing and heating effects. A controller 9 is located at the upper end of the inner cylinder 2, with its input electrically connected to an external power source. A support pipe 13 is rotatably connected to the upper end of the discharge port at the lower end of the inner cylinder 2. A connecting strip 12 is located at the upper end of the support pipe 13, and the lower end of the rotating shaft 6 is rotatably connected to the connecting strip 12. The support pipe 13 and connecting strip 12 provide rotational support to the lower end of the rotating shaft 6, enhancing its structural strength. The lower surface of the connecting strip 12 is provided with symmetrically distributed comb plates 15. The comb plates 15 are slidably connected to the bottom wall of the inner cylinder 2. The comb plates 15 rotate with the connecting strip 12 to scrape the flame retardant at the bottom, which facilitates the scraping out of the flame retardant. The heated flame retardant can be discharged from the discharge pipe at the lower end of the inner cylinder 2. A temperature sensor 14 is provided at the detection hole at the bottom of the outer shell 1. The output end of the temperature sensor 14 is electrically connected to the input end of the controller 9. The temperature sensor 14 detects the steam temperature and converts the temperature information into an electrical signal to be transmitted to the controller 9. The controller 9 controls the steam source.

[0023] Drive assembly 8: Used to drive the rotation and revolution of the rotating shaft 6. Drive assembly 8 includes a motor 81, a large gear 82, and a small gear 83. The motor 81 is located at the upper end of the inner cylinder 2. The output shaft of the motor 81 is fixedly connected to the upper end of the support shaft 4. The upper end of the rotating shaft 6 is provided with a small gear 83. The upper side wall of the inner cylinder 2 is provided with a large gear 82. The small gears 83 are all meshed with the large gear 82. The input end of the motor 81 is electrically connected to the output end of the controller 9. When the motor 81 runs, the output shaft of the motor 81 drives... The support shaft 4 rotates, and the support shaft 4 drives the rotating shaft 6 to rotate through the support beam 5. The rotating shaft 6 drives the small gear 83 to rotate around the axis of the support shaft 4. The small gear 83 meshes with the stationary large gear 82, and then the small gear 83 drives the rotating shaft 6 to rotate. The lower surface of the support beam 5 is provided with a protective shell 10. The upper end of the protective shell 10 is rotatably connected to the upper side wall of the inner cylinder 2. The large gear 82 and the small gear 83 are both located inside the protective shell 10, and the protective shell 10 protects the internal components.

[0024] The working principle of the flame retardant heating reaction device provided by this utility model is as follows: During use, the flame retardant is added to the interior of the inner cylinder 2. The upper air inlet pipe of the outer shell 1 is connected to the external heating steam, and the lower air outlet pipe of the outer shell 1 is connected to the steam recovery pipe. The steam spirals downwards along the spiral blades 3 inside the interlayer between the outer shell 1 and the inner cylinder 2, and then flows out through the air outlet pipe. This spiral flow of steam can uniformly heat the inner cylinder 2. Simultaneously, the controller 9 is adjusted, and the motor 81 operates. The output shaft of the motor 81 drives the support shaft 4 to rotate. The support shaft 4 drives the rotating shaft 6 to rotate via the support beam 5. The rotating shaft 6 drives the small gear 83 to rotate around the axis of the support shaft 4. The small gear 83 meshes with the stationary large gear 82, thereby driving the rotating shaft 6 to rotate. The rotating shaft 6 drives the material-pulling blade 7 to rotate, which in turn moves the flame retardant inside the inner cylinder 2, causing the flame retardant at the center of the inner cylinder 2 to exchange with the flame retardant on the cylinder wall. At the same time, as the support beam 5 rotates, the flame retardant around the cylinder can be stirred, ensuring uniform heating. The rectangular holes 11 reduce the rotational resistance of the material-pulling blade 7 and facilitate the dispersion of the flame retardant. Furthermore, the rectangular holes 11 on the same rotating shaft 6 are staggered vertically, which can move the flame retardant in layers, resulting in a good stirring and mixing effect, and thus a good heating reaction effect. The temperature sensor 14 detects the steam temperature and converts the temperature information into an electrical signal to be transmitted to the controller 9. The controller 9 controls the steam source.

[0025] It is worth noting that the motor 81, controller 9 and temperature sensor 14 disclosed in the above embodiments can be freely configured according to the actual application scenario. The motor 81 can be a geared motor of model TCV28-750, the core chip of controller 9 can be a single-chip microcomputer of model AT89S51, and the temperature sensor 14 can be a temperature sensor of model HZP / W-PT100. The controller 9 controls the operation of motor 81 and temperature sensor 14 using methods commonly used in the prior art.

[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A flame retardant heating reaction apparatus, characterized in that: Includes housing (1) and drive assembly (8); Outer shell (1): It is provided with an inner cylinder (2) inside. The outer arc surface of the inner cylinder (2) is provided with a spiral blade (3). The spiral blade (3) is fixedly connected to the inner arc surface of the outer shell (1). The upper end of the inner cylinder (2) is rotatably connected with a support shaft (4). The lower end of the support shaft (4) is provided with a support beam (5). The left and right ends of the support beam (5) are rotatably connected with a rotating shaft (6). The outer arc surface of the rotating shaft (6) is provided with three vertically staggered material-pulling blades (7). The side of the material-pulling blades (7) is provided with evenly distributed rectangular holes (11). Drive component (8): Used to drive the rotation and revolution of the rotating shaft (6).

2. The flame retardant heating reaction apparatus according to claim 1, characterized in that: The upper end of the inner cylinder (2) is provided with a controller (9), and the input end of the controller (9) is electrically connected to an external power source.

3. The flame retardant heating reaction apparatus according to claim 2, characterized in that: The drive assembly (8) includes a motor (81), a large gear (82) and a small gear (83). The motor (81) is located at the upper end of the inner cylinder (2). The output shaft of the motor (81) is fixedly connected to the upper end of the support shaft (4). The upper end of the rotating shaft (6) is provided with a small gear (83). The upper side wall of the inner cylinder (2) is provided with a large gear (82). The small gears (83) are meshed with the large gears (82). The input end of the motor (81) is electrically connected to the output end of the controller (9).

4. The flame retardant heating reaction apparatus according to claim 3, characterized in that: The lower surface of the support beam (5) is provided with a protective shell (10). The upper end of the protective shell (10) is rotatably connected to the upper side wall of the inner cylinder (2). The large gear (82) and the small gear (83) are both located inside the protective shell (10).

5. The flame retardant heating reaction apparatus according to claim 1, characterized in that: The upper end of the discharge port at the lower end of the inner cylinder (2) is rotatably connected to a support pipe (13), and the upper end of the support pipe (13) is provided with a connecting strip (12). The lower end of the rotating shaft (6) is rotatably connected to the connecting strip (12).

6. The flame retardant heating reaction apparatus according to claim 5, characterized in that: The lower surface of the connecting strip (12) is provided with symmetrically distributed comb plates (15), and the comb plates (15) are slidably connected to the bottom wall of the inner cylinder (2).

7. The flame retardant heating reaction apparatus according to claim 2, characterized in that: A temperature sensor (14) is provided at the detection hole at the bottom of the housing (1), and the output end of the temperature sensor (14) is electrically connected to the input end of the controller (9).

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