Polyurethane film production reaction kettle capable of increasing reaction rate

Abstract

The utility model belongs to the technical field of reaction kettles, and particularly relates to a polyurethane film production reaction kettle capable of increasing reaction rate, which comprises a reaction kettle, a feed port is arranged at the top of the reaction kettle, and an external pipe is arranged at the top of the feed port; according to the utility model, the silicone rubber heating belt is arranged on the outer wall of the external connection pipe, the sleeve is arranged outside the silicone rubber heating belt, and then the bottom of the external connection pipe and the charging port are arranged, so that the polyurethane film production raw material enters the charging port through the external connection pipe; due to the fact that the temperature in the external connection pipe can be increased under the action of the silicone rubber heating belt, the flowing time of the polyurethane film production raw materials in the external connection pipe can be prolonged under the action of the spiral pieces, and the temperature in the external connection pipe can increase the temperature of the polyurethane film production raw materials; the polyurethane film production raw materials entering the reaction kettle have a certain temperature, so that the reaction rate of the polyurethane film production raw materials in the reaction kettle can be increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of reaction kettles, and in particular relates to a reaction kettle for producing polyurethane films which can improve the reaction rate. Background Art

[0002] Polyurethane film is a film made of a polymer material called polyurethane. Polyurethane is an elastic material with a unique block molecular structure synthesized from raw materials such as polyols and diisocyanates. Its products have excellent adhesion, wettability, flexibility, wear resistance, glossiness and other characteristics. Polyurethane film has many excellent physical and chemical properties. For example, it has excellent wear resistance, high tear resistance, good elasticity and low-temperature flexibility, which enables it to maintain excellent performance in various application environments. In addition, it also has good oil resistance, low temperature resistance, heat aging resistance, ozone resistance, radiation resistance, electrical insulation and biocompatibility. These characteristics make polyurethane film widely used in many fields.

[0003] In the manufacturing process of polyurethane film, reactors are used to process its raw materials. However, most of the current operating processes directly put the polyurethane film raw materials at room temperature into the reactor. This practice results in low reaction efficiency of the raw materials in the reactor, which in turn prolongs the manufacturing time of the polyurethane film. In order to improve production efficiency, we need to improve the existing reactors for polyurethane film production. Specifically, it should be ensured that the polyurethane film raw materials maintain a certain temperature when entering the reactor. In this way, the reaction rate of the raw materials in the reactor can be effectively increased, thereby shortening the manufacturing cycle. Utility Model Content

[0004] The purpose of the utility model is to provide a reactor for the production of polyurethane films that can improve the reaction rate, aiming to solve the problem that in the manufacturing process of the polyurethane film, the reactor is used to process its raw materials. However, most of the current operating processes directly put the polyurethane film raw materials at room temperature into the reactor. This practice results in low reaction efficiency of the raw materials in the reactor, thereby prolonging the manufacturing time of the polyurethane film. In order to improve production efficiency, we need to improve the existing reactor for the production of polyurethane films. Specifically, it should be ensured that the polyurethane film raw materials maintain a certain temperature when entering the reactor. In this way, the reaction rate of the raw materials in the reactor can be effectively improved, thereby shortening the manufacturing cycle.

[0005] To achieve the above object, the utility model provides the following technical solution: a reaction kettle for polyurethane film production capable of improving reaction rate, comprising a reaction kettle, a feeding port is installed on the top of the reaction kettle, and an external pipe is installed on the top of the feeding port;

[0006] The external tube is sleeved with a sleeve, a heat-insulating layer is installed inside the sleeve, a circle of silicone rubber heating belt is arranged on one side of the heat-insulating layer, and the external wire on the silicone rubber heating belt passes through the heat-insulating layer and extends to the outside of the sleeve.

[0007] In order to enable the sleeve to protect the silicone rubber heating belt, as a preferred reactor for polyurethane film production that can increase the reaction rate of the utility model, an inner cavity is opened inside the sleeve, and the insulation layer and the silicone rubber heating belt are both located in the inner cavity.

[0008] In order to allow the heat generated by the silicone rubber heating belt to be conducted to the inside of the external tube, as a preferred embodiment of the utility model for producing a polyurethane film that can improve the reaction rate, the external tube is made of stainless steel, and the generating side of the silicone rubber heating belt is wrapped around the outer wall of the external tube.

[0009] In order to increase the time required for the polyurethane film to pass through the external tube, a preferred reactor for producing polyurethane film that can improve the reaction rate is provided in the utility model. A circular ring is connected to the inner wall of the external tube, a connecting rod is fixedly connected to the inner wall of the circular ring, the other end of the connecting rod is fixedly connected to a center column, and a spiral sheet is installed on the outer wall of the center column.

[0010] In order to enable the circular ring to maintain a movable structure inside the external tube, as a preferred reactor for producing polyurethane film that can improve the reaction rate of the utility model, a circle of annular grooves are respectively provided on the inner walls of the upper and lower ends of the external tube, and the interior of the annular grooves is movably connected to the outer wall of the corresponding circular ring.

[0011] In order to enable the spiral blade to rotate normally in the external tube, as a preferred reactor for polyurethane film production that can improve the reaction rate of the utility model, the outer wall of the spiral blade is in active contact with the inner wall of the external tube, and the center of the center column is located on the longitudinal midline of the external tube.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] Install the silicone rubber heating belt on the outer wall of the external tube, and then install the sleeve on the outside of the silicone rubber heating belt. After completion, install the bottom of the external tube and the feeding port. When the polyurethane film production raw materials enter the feeding port through the external tube during use, the temperature inside the external tube will increase due to the action of the silicone rubber heating belt. At this time, the spiral blades will increase the time that the polyurethane film production raw materials flow in the external tube. In this way, the temperature inside the external tube will increase the temperature of the polyurethane film production raw materials, and finally the polyurethane film production raw materials entering the reactor will have a certain temperature, thereby increasing the reaction rate of the polyurethane film production raw materials in the reactor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the side cross-sectional structure of the casing of the utility model;

[0017] Figure 3 It is a schematic diagram of the installation structure of the internal parts of the external pipe of the utility model in a side view section;

[0018] Figure 4 It is a cross-sectional schematic diagram of the external pipe of the utility model.

[0019] In the figure: 1, reactor; 2, feeding port; 3, external pipe; 301, annular groove; 4, sleeve; 401, inner cavity; 5, insulation layer; 6, silicone rubber heating belt; 7, external wire; 8, ring; 9, connecting rod; 10, center column; 11, spiral blade. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 The utility model provides the following technical solutions: A reaction kettle for polyurethane film production capable of improving reaction rate, comprising a reaction kettle 1, a feeding port 2 is installed on the top of the reaction kettle 1, and an external pipe 3 is installed on the top of the feeding port 2;

[0022] The external tube 3 is sleeved with a sleeve 4, and a thermal insulation layer 5 is installed inside the sleeve 4. A circle of silicone rubber heating belt 6 is arranged on one side of the thermal insulation layer 5. The external wire 7 on the silicone rubber heating belt 6 penetrates the thermal insulation layer 5 and extends to the outside of the sleeve 4.

[0023] Preferably, an inner cavity 401 is opened inside the sleeve 4 , and the thermal insulation layer 5 and the silicone rubber heating belt 6 are both located in the inner cavity 401 .

[0024] During specific use, the two ends of the sleeve 4 are stuck on the outer wall of the external tube 3 in an interference structure. In order to ensure the firmness of the sleeve 4 after installation, it can also be tied with wire. When in use, the insulation layer 5 can make the heat of the silicone rubber heating belt 6 be transferred to the inside of the external tube 3 as much as possible to reduce the dissipation to the outside.

[0025] Preferably, the external tube 3 is made of stainless steel, and the generating side of the silicone rubber heating belt 6 is wrapped around the outer wall of the external tube 3 .

[0026] During specific use, the heat generated by the silicone rubber heating belt 6 during operation can be effectively transferred into the interior of the external tube 3 , so that the interior of the external tube 3 can maintain an effective heating temperature.

[0027] Preferably: a circular ring 8 is connected to the inner wall of the external tube 3, a connecting rod 9 is fixedly connected to the inner wall of the circular ring 8, the other end of the connecting rod 9 is fixedly connected to a central column 10, a spiral sheet 11 is installed on the outer wall of the central column 10, and a circle of annular grooves 301 are respectively provided on the inner walls of the upper and lower ends of the external tube 3, the interior of the annular grooves 301 is movably connected to the outer wall of the corresponding circular ring 8, the outer wall of the spiral sheet 11 is movably contacted with the inner wall of the external tube 3, and the center of the central column 10 is located on the longitudinal midline of the external tube 3.

[0028] During specific use, the external tube 3 maintains a vertical installation structure, and the raw materials for producing the polyurethane film will flow downward along the trajectory of the spiral sheet 11 after being added into the external tube 3, and when encountering obstacles, the ring 8 can also pass through the annular groove 301 to flow.

[0029] Working principle: When in use, first wrap the silicone rubber heating belt 6 on the outer wall of the external tube 3, and then install the sleeve 4 on the outer wall of the silicone rubber heating belt 6;

[0030] When the reaction kettle 1 is used to produce the polyurethane film, the polyurethane film raw material is added to the feed port 2 through the external pipe 3. At the same time, when adding the polyurethane film production raw material, the external wire 7 needs to be connected to the external switch power supply, and the switch on the silicone rubber heating belt 6 is started, so that the silicone rubber heating belt 6 will generate heat. As the heat continues to increase, the temperature in the external pipe 3 will also increase;

[0031] When the polyurethane film production raw materials pass through the external tube 3, the spiral blade 11 in the external tube 3 will cause the polyurethane film production raw materials to rotate and descend inside the external tube 3. During this process, the heat in the external tube 3 will be transferred into the polyurethane film production raw materials. Finally, the polyurethane film production raw materials entering the reactor 1 will have a certain temperature, thereby increasing the reaction rate of the polyurethane film production raw materials in the reactor 1.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A reaction kettle for producing polyurethane film capable of improving reaction rate, comprising a reaction kettle (1), wherein a feed port (2) is installed on the top of the reaction kettle (1), and characterized in that: An external pipe (3) is installed on the top of the feeding port (2); The external tube (3) is sleeved with a sleeve (4), the sleeve (4) is provided with a thermal insulation layer (5) inside, a circle of silicone rubber heating belt (6) is provided on one side of the thermal insulation layer (5), and the external wire (7) on the silicone rubber heating belt (6) penetrates the thermal insulation layer (5) and extends to the outside of the sleeve (4).

2. A reaction kettle for producing polyurethane film capable of improving reaction rate according to claim 1, characterized in that: An inner cavity (401) is provided inside the sleeve (4), and the thermal insulation layer (5) and the silicone rubber heating belt (6) are both located in the inner cavity (401).

3. The reaction kettle for producing polyurethane film capable of improving reaction rate according to claim 1, characterized in that: The external tube (3) is made of stainless steel, and the generating side of the silicone rubber heating belt (6) is wrapped around the outer wall of the external tube (3).

4. The reaction kettle for producing polyurethane film capable of improving reaction rate according to claim 1, characterized in that: A circular ring (8) is connected to the inner wall of the external tube (3), a connecting rod (9) is fixedly connected to the inner wall of the circular ring (8), the other end of the connecting rod (9) is fixedly connected to a central column (10), and a spiral sheet (11) is installed on the outer wall of the central column (10).

5. The reaction kettle for producing polyurethane film capable of improving reaction rate according to claim 1, characterized in that: A circle of annular grooves (301) are respectively formed on the inner walls of the upper and lower ends of the external pipe (3), and the interior of the annular grooves (301) is movably connected to the outer wall of the corresponding circular ring (8).

6. A reaction kettle for producing polyurethane film capable of improving reaction rate according to claim 4, characterized in that: The outer wall of the spiral sheet (11) is in active contact with the inner wall of the external tube (3), and the center of the central column (10) is located on the longitudinal midline of the external tube (3).

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