Reaction kettle for producing EPS (Expandable Polystyrene) thermal insulation material

Abstract

The utility model discloses a reaction kettle for producing an EPS (Expandable Polystyrene) thermal insulation material, an arc-shaped inner sleeve is arranged in an arc-shaped structure at the lower part of a kettle body and is fastened through a bolt, the outer surface of the arc-shaped inner sleeve is attached to the arc-shaped structure of the kettle body, a through hole is formed in the center of the arc-shaped inner sleeve, and the through hole is communicated with a discharge hole; a plurality of layers of fixing rods are evenly arranged on the inner wall of the arc-shaped inner sleeve in the radial direction, the bottom of the stirring main shaft is supported in a shaft hole of the bracket through an extension shaft, a plurality of layers of stirring rods are arranged on the lower portion of the connecting sleeve through the connecting sleeve, and the stirring rods and the fixing rods are arranged in a staggered mode. The arc-shaped inner sleeve and the fixing rods are arranged in a staggered mode, shearing force to materials during stirring is improved, full stirring is achieved, the fixing rods are connected with the inner side surfaces of the arc-shaped inner sleeves, compared with a traditional mode that the fixing rods are directly welded to the inner wall of the kettle body, the process is simpler, the arc-shaped inner sleeves are connected with the kettle body through bolts, and subsequent replacement or cleaning is facilitated through the detachable structure.

Description

Technical Field

[0001] The utility model relates to the technical field of reactors, in particular to a reactor for producing EPS thermal insulation materials. Background Art

[0002] EPS stands for expandable polystyrene. It has the advantages of low relative density, low thermal conductivity, low water absorption, resistance to impact and vibration, heat insulation, sound insulation, moisture resistance, vibration reduction, and excellent dielectric properties. It is widely used in shockproof packaging materials for mechanical equipment, instruments and meters, household appliances, handicrafts and other fragile and valuable products, as well as in the packaging of fast food.

[0003] The main raw materials of EPS insulation material are polyethylene monomer, catalyst, and foaming agent. EPS is produced by polymerization reaction in a reactor. Most existing reactors used for EPS insulation material production use a single kettle body with a stirring rod inside for stirring. However, this stirring kettle does not have sufficient shear force, which affects efficiency and product quality. Currently, there is a reactor with fixed rods on the inner wall. The stirring rods and fixed rods are staggered to improve the stirring shear force. However, the fixed rods of existing reactors with fixed rods are directly welded to the inner wall of the kettle body, which makes processing more difficult. Therefore, an improved technology is urgently needed to solve this problem in the existing technology. Utility Model Content

[0004] The purpose of the utility model is to provide a reactor for the production of EPS thermal insulation materials. The fixing rod is connected to the inner surface of the arc-shaped inner sleeve. Compared with the traditional method of directly welding the fixing rod to the inner wall of the reactor body, the process is simpler. The arc-shaped inner sleeve is connected to the reactor body by bolts, and the detachable structure also facilitates subsequent replacement or cleaning, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a reaction kettle for producing EPS thermal insulation materials, comprising a kettle body, an arc-shaped inner sleeve and a stirring mechanism;

[0006] The upper surface of the kettle body is provided with a kettle cover, the center position of the upper surface of the kettle cover is provided with a motor seat, the upper surface of the kettle cover is also provided with a plurality of feeding ports, the outer periphery of the kettle body is wrapped with a jacket, the bottom of the kettle body is provided with a discharge port, and the lower part of the kettle body is an arc-shaped structure;

[0007] The arc-shaped inner sleeve is arranged in the arc-shaped structure at the lower part of the kettle body and is fastened by bolts. The outer surface of the arc-shaped inner sleeve is fitted with the arc-shaped structure of the kettle body. A through hole is opened at the center of the arc-shaped inner sleeve, and the through hole is communicated with the discharge port. A plurality of inclined rods are arranged on the inner side of the arc-shaped inner sleeve and located at the through hole. The top ends of the inclined rods are connected to the periphery of the bracket. An axial hole is opened on the upper surface of the bracket. The inner wall of the arc-shaped inner sleeve is evenly provided with a plurality of multi-layer fixing rods along the radial direction, and a gap is left between the upper and lower adjacent fixing rods.

[0008] The stirring mechanism includes a motor, a stirring spindle, a connecting sleeve and a stirring rod. The motor is arranged on the upper surface of the motor base. The output shaft of the motor is connected to the top of the stirring spindle through a coupling. An extension shaft is provided at the bottom of the stirring spindle. The extension shaft is supported in the shaft hole of the bracket. The connecting sleeve is sleeved on the bottom of the stirring spindle and fastened by bolts. Several layers of stirring rods are arranged on the periphery of the connecting sleeve. The stirring rods are staggered with the fixed rods. The stirring rods are movably arranged in the gap between the upper and lower layers of fixed rods.

[0009] Preferably, the utility model provides a reactor for producing EPS thermal insulation materials, wherein the upper surface of the reactor cover is further provided with a thermometer port and a pressure gauge port.

[0010] Preferably, the utility model provides a reactor for producing EPS thermal insulation materials, wherein a plurality of support seats are evenly arranged on the outer surface of the jacket.

[0011] Preferably, the utility model provides a reactor for producing EPS thermal insulation materials, wherein a steam inlet is provided at the lower portion of the jacket, and a steam outlet is provided at one side of the upper portion of the jacket.

[0012] Preferably, the utility model provides a reactor for producing EPS thermal insulation materials, wherein a plurality of lifting ears are evenly arranged on the upper surface of the arc-shaped inner sleeve.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] Stirring is achieved through a stirring rod, and it is staggered with the fixed rod to increase the shear force on the material during stirring, thereby achieving sufficient stirring, and the fixed rod is connected to the inner surface of the arc-shaped inner sleeve. Compared with the traditional method of directly welding the fixed rod to the inner wall of the kettle body, the process is simpler. The arc-shaped inner sleeve is connected to the kettle body by bolts, and the detachable structure is also convenient for subsequent replacement or cleaning. At the same time, the arc-shaped inner sleeve is located above the through hole and is provided with a bracket through an inclined rod for supporting the bottom of the stirring main shaft, which ensures the stability of the stirring main shaft, thereby improving the stability of the stirring rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the appearance structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the top view of the arc-shaped inner sleeve.

[0018] In the figure: kettle body 1, arc-shaped inner sleeve 2, kettle cover 3, motor base 4, feeding port 5, jacket 6, discharge port 7, through hole 8, inclined rod 9, bracket 10, fixed rod 11, motor 12, stirring main shaft 13, connecting sleeve 14, stirring rod 15, extension shaft 16, thermometer port 17, pressure gauge port 18, support base 19, steam inlet 20, steam outlet 21, lifting lug 22. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0020] It should be noted that, in the description of the present invention, the terms "inside", "outside", "up", "down", "both sides", "one end", "the other end", "left", "right", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.

[0021] See also Figure 1-3 , the utility model provides a technical solution: a reactor for producing EPS thermal insulation materials, comprising a reactor body 1, an arc-shaped inner sleeve 2 and a stirring mechanism;

[0022] A kettle cover 3 is provided on the upper surface of the kettle body 1, and a motor base 4 is provided at the center of the upper surface of the kettle cover 3. The upper surface of the kettle cover 3 is also provided with a plurality of feeding ports 5, at least three feeding ports 5, to respectively realize the input of polyethylene monomer, catalyst and foaming agent. The upper surface of the kettle cover 3 is also provided with a thermometer port 17 and a pressure gauge port 18 to realize the installation of the thermometer and the pressure gauge, thereby realizing the monitoring of the temperature and pressure inside the kettle body 1. The outer periphery of the kettle body 1 is wrapped with a jacket 6, and a plurality of support seats 19 are evenly provided on the outer surface of the jacket 6 to realize the overall support and fixation. A steam inlet 20 is provided at the lower part of the jacket 6, and a steam outlet 21 is provided on one side of the upper part of the jacket 6 to respectively realize the entry and discharge of high-temperature steam into and out of the jacket 6, thereby heating the inside of the kettle body 1. A discharge port 7 is provided at the bottom of the kettle body 1, and the lower part of the kettle body 1 is an arc-shaped structure;

[0023] The arc-shaped inner sleeve 2 is arranged in the arc-shaped structure at the lower part of the kettle body 1 and is fastened by bolts. The outer surface of the arc-shaped inner sleeve 2 is fitted with the arc-shaped structure of the kettle body 1. A through hole 8 is provided at the center of the arc-shaped inner sleeve 2. The through hole 8 is communicated with the discharge port 7. A plurality of inclined rods 9 are provided on the inner side of the arc-shaped inner sleeve 2 and at the through hole 8. The top ends of the inclined rods 9 are connected to the periphery of the bracket 10. An axial hole is provided on the upper surface of the bracket 10. The inner wall of the arc-shaped inner sleeve 2 is evenly provided with a plurality of multi-layer fixing rods 11 along the radial direction. There is a gap between the upper and lower adjacent fixing rods 11. A plurality of lifting ears 22 are evenly provided on the upper surface of the arc-shaped inner sleeve 2 to facilitate the lifting of the arc-shaped inner sleeve 2, thereby facilitating installation;

[0024] The stirring mechanism includes a motor 12, a stirring spindle 13, a connecting sleeve 14 and a stirring rod 15. The motor 12 is arranged on the upper surface of the motor base 4. The output shaft of the motor 12 is connected to the top of the stirring spindle 13 through a coupling. An extension shaft 16 is provided at the bottom of the stirring spindle 13. The extension shaft 16 is supported in the shaft hole of the bracket 10. The connecting sleeve 14 is sleeved on the bottom of the stirring spindle 13 and fastened by bolts. Several layers of stirring rods 15 are arranged on the periphery of the connecting sleeve 14. The stirring rods 15 and the fixed rods 11 are arranged alternately. The stirring rods 15 are movably arranged in the gap between the corresponding upper and lower layers of fixed rods 11.

[0025] Installation method and operating principle: Suspend the arc-shaped inner sleeve 2 to the interior of the kettle body 1 through a lifting device, press the arc-shaped inner sleeve 2 to the bottom end of the kettle body 1 by knocking, then after aligning the holes, fix the arc-shaped inner sleeve 2 to the arc-shaped structure inside the kettle body 1 with bolts. First, install the motor 12 on the upper surface of the motor base 4, then connect the top of the stirring main shaft 13 to the output shaft of the motor 12 through a coupling, then connect the connecting sleeve 14 to the bottom of the stirring main shaft 13, and finally install the kettle cover 3 on the upper surface of the kettle body 1, and support the extension shaft 16 at the bottom of the stirring main shaft 13 on the shaft hole of the bracket 10 to complete the installation. At this time, the stirring rod 15 and the fixed plate are intertwined. When in use, polyethylene monomer, catalyst, and foaming agent are respectively fed into the kettle body 1 from the corresponding feeding ports 5, and high-temperature steam enters the jacket 6 from the steam inlet 20, thereby heating the interior of the kettle body 1, and starting the motor 12. The motor 12 drives the stirring main shaft 13 to rotate, thereby driving the stirring rod 15 to rotate, achieving sufficient mixing and stirring, and polymerizing to obtain polystyrene. The utility model has a reasonable structure, and stirring is achieved by the stirring rod 15, and is staggered with the fixed rod 11 to increase the shear force on the material during stirring, thereby achieving sufficient stirring, and the fixed rod 11 is connected to the inner surface of the arc-shaped inner sleeve 2. Compared with the traditional method of directly welding the fixed rod 11 to the inner wall of the kettle body 1, the process is simpler. The arc-shaped inner sleeve 2 is connected to the kettle body 1 by bolts, and the detachable structure is also convenient for subsequent replacement or cleaning. At the same time, the arc-shaped inner sleeve 2 is located above the through hole 8 and is provided with a bracket 10 through the inclined rod 9 for supporting the bottom of the stirring main shaft 13, ensuring the stability of the stirring main shaft 13, thereby improving the stability of the stirring rod 15.

[0026] Anything not described in detail in the present invention is well known to those skilled in the art.

[0027] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified and replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A reactor for producing EPS thermal insulation materials, characterized by: It comprises a kettle body (1), an arc-shaped inner sleeve (2) and a stirring mechanism; The upper surface of the kettle body (1) is provided with a kettle cover (3), a motor seat (4) is provided at the center of the upper surface of the kettle cover (3), and a plurality of feeding ports (5) are also provided on the upper surface of the kettle cover (3). The outer periphery of the kettle body (1) is wrapped with a jacket (6), and a discharge port (7) is provided at the bottom of the kettle body (1). The lower part of the kettle body (1) is an arc-shaped structure. The arc-shaped inner sleeve (2) is arranged in the arc-shaped structure at the lower part of the kettle body (1) and is fastened by bolts. The outer surface of the arc-shaped inner sleeve (2) is fitted with the arc-shaped structure of the kettle body (1). A through hole (8) is provided at the center of the arc-shaped inner sleeve (2). The through hole (8) is communicated with the discharge port (7). A plurality of inclined rods (9) are provided on the inner side of the arc-shaped inner sleeve (2) and at the through hole (8). The top ends of the inclined rods (9) are connected to the outer periphery of the bracket (10). An axial hole is provided on the upper surface of the bracket (10). The inner wall of the arc-shaped inner sleeve (2) is evenly provided with a plurality of multi-layer fixed rods (11) along the radial direction, and a gap is left between the upper and lower adjacent fixed rods (11); The stirring mechanism comprises a motor (12), a stirring main shaft (13), a connecting sleeve (14) and a stirring rod (15), wherein the motor (12) is arranged on the upper surface of the motor seat (4), the output shaft of the motor (12) is connected to the top of the stirring main shaft (13) through a coupling, an extension shaft (16) is arranged at the bottom of the stirring main shaft (13), and the extension shaft (16) is supported in the shaft hole of the bracket (10), the connecting sleeve (14) is sleeved with the bottom of the stirring main shaft (13) and fastened by bolts, and a plurality of layers of stirring rods (15) are arranged on the periphery of the connecting sleeve (14), the stirring rods (15) and the fixed rods (11) are arranged in an alternating manner, and the stirring rods (15) are movably arranged in the gap between the upper and lower layers of the fixed rods (11).

2. The reactor for producing EPS thermal insulation material according to claim 1, characterized in that: The upper surface of the kettle cover (3) is also provided with a thermometer port (17) and a pressure gauge port (18).

3. The reactor for producing EPS thermal insulation material according to claim 1, characterized in that: A plurality of support seats (19) are evenly arranged on the outer surface of the jacket (6).

4. The reactor for producing EPS thermal insulation material according to claim 1, characterized in that: The lower portion of the jacket (6) is provided with a steam inlet (20), and one side of the upper portion of the jacket (6) is provided with a steam outlet (21).

5. The reactor for producing EPS thermal insulation material according to claim 1, characterized in that: A plurality of lifting ears (22) are evenly arranged on the upper surface of the arc-shaped inner sleeve (2).

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