Continuous flow reactor for preparing epoxy resin

Abstract

The utility model provides a continuous flow reactor for epoxy resin preparation, which relates to the field of epoxy resin preparation and comprises a flow reactor frame, a feeding main pipe and a discharging pipe, the feeding main pipe and the discharging pipe are mounted on the front side wall of the flow reactor frame, the feeding main pipe is connected with a reaction elbow through a first straight mixing pipe, and the discharging pipe is connected with a second straight mixing pipe. The reaction bent pipe is connected with a discharging pipe through a second mixing straight pipe, turbine fan blades are mounted on the inner side walls of the first mixing straight pipe and the second mixing straight pipe through fixing frames, connecting rods are fixed to the side faces of the turbine fan blades, and double-helix mixing blades are welded to the surfaces of the connecting rods. According to the utility model, the problems of insufficient reaction and raw material blockage caused by continuous conveying of epoxy resin raw materials in a continuous flow reactor are solved.

Description

Technical Field

[0001] The utility model relates to the field of epoxy resin preparation, in particular to a continuous flow reactor used for epoxy resin preparation. Background Art

[0002] Epoxy resin is an important thermosetting resin, which is usually prepared by the reaction of epoxy compounds and acid anhydrides. During the preparation process, a continuous flow reactor is used to continuously prepare epoxy resin. However, the continuous delivery of epoxy resin raw materials in the continuous flow reactor can easily lead to insufficient reaction and raw material blockage. Utility Model Content

[0003] In order to overcome the defects of the prior art, a continuous flow reactor for preparing epoxy resin is provided to solve the problem that continuous transportation of epoxy resin raw materials in the continuous flow reactor easily causes insufficient reaction and raw material blockage.

[0004] To achieve the above object, a continuous flow reactor for preparing epoxy resin is provided, comprising: a flow reactor frame, a feed pipe and a discharge pipe, wherein the feed pipe and the discharge pipe are installed on the front side wall of the flow reactor frame.

[0005] The feed main pipe is connected to a reaction elbow via a first mixing straight pipe, the reaction elbow is connected to a discharge pipe via a second mixing straight pipe, turbine blades are mounted on the inner side walls of the first mixing straight pipe and the second mixing straight pipe via a fixing frame, a connecting rod is fixed to the side of the turbine blade, and double helical mixing blades are welded on the surface of the connecting rod.

[0006] Furthermore, a central control box is fixed on the surface of the flow reactor frame, a feed pipe opening is arranged at the left end of the feed main pipe, and a discharge pipe opening is arranged at the left end of the discharge pipe.

[0007] Furthermore, the feed pipes are welded to the upper tube surfaces of the feed main pipe, the discharge pipe and the reaction elbow pipe, and two groups of reaction elbow pipes and a first mixing straight pipe are connected between the feed main pipe and the discharge pipe.

[0008] Furthermore, an annular heater is installed on the surface of the first straight mixing tube, the second straight mixing tube and the discharge tube, and a temperature display screen is provided on the surface of the annular heater.

[0009] Furthermore, the inner side of the connecting rod is hollow; and two groups of turbine blades are screwed on the upper and lower ends of the connecting rod.

[0010] Furthermore, the feed main pipe, the reaction elbow pipe, the first mixing straight pipe, the second mixing straight pipe and the discharge pipe form a continuous reaction pipeline.

[0011] Furthermore, double helical mixing blades made of stainless steel are spirally distributed on the surface of the connecting rod.

[0012] The beneficial effect of the utility model is that the continuous flow reactor for epoxy resin preparation of the utility model is installed in the pipeline of the continuous flow reactor by using a mixing straight tube, and the turbine blades are driven to rotate by the epoxy resin raw material fluid in the pipeline, so that the rotation of the turbine blades drives the middle double helical mixing blades to rotate and mix the epoxy resin raw material fluid, effectively promoting the mixed reaction of multiple raw materials of epoxy resin, avoiding the phenomenon of raw material blockage in the pipeline of the continuous flow reactor, facilitating the acceleration of the continuous reaction rate of the epoxy resin, and improving the reaction efficiency of the continuous flow reactor. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front view structural schematic diagram of a continuous flow reactor for preparing epoxy resin according to an embodiment of the utility model.

[0014] Figure 2 It is a schematic diagram of the front cross-sectional structure of the first mixing straight tube according to an embodiment of the utility model.

[0015] Figure 3 It is a schematic diagram of the top structure of the first mixing straight tube of an embodiment of the utility model.

[0016] Figure 4 It is a schematic diagram of the three-dimensional structure of the double helical mixing blades according to an embodiment of the utility model.

[0017] In the figure: 1. flow reactor frame; 11. central control box; 2. feed main pipe; 21. feed pipe opening; 3. reaction elbow; 31. feeding pipe; 4. first mixing straight pipe; 41. second mixing straight pipe; 5. discharge pipe; 51. discharge pipe opening; 6. annular heater; 61. temperature display screen; 7. double helical mixing blades; 71. turbine blades; 72. connecting rod; 73. fixing frame. DETAILED DESCRIPTION

[0018] Reference Figures 1 to 4 As shown, the utility model provides a continuous flow reactor for preparing epoxy resin, comprising: a flow reactor frame 1, a feed pipe 2 and a discharge pipe 5, wherein the feed pipe 2 and the discharge pipe 5 are installed on the front side wall of the flow reactor frame 1.

[0019] The feed main pipe 2 is connected to the reaction elbow 3 through the first mixing straight pipe 4, and the reaction elbow 3 is connected to the discharge pipe 5 through the second mixing straight pipe 41. The inner walls of the first mixing straight pipe 4 and the second mixing straight pipe 41 are installed with turbine blades 71 through a fixing frame 73. A connecting rod 72 is fixed to the side of the turbine blade 71, and a double helical mixing blade 7 is welded on the surface of the connecting rod 72.

[0020] First, part of the epoxy resin raw materials are introduced into the feed main pipe 2 for reaction, and at the same time, the raw materials are added into the pipeline through the feeding pipe 31. When the epoxy resin raw materials in the pipeline flow to the first mixing straight pipe 4 or the second mixing straight pipe 41, the turbine blades 71 are driven to rotate, so that the rotation of the turbine blades 71 drives the middle double helical mixing blades 7 to rotate and mix the epoxy resin raw materials, effectively promoting the mixing reaction of multiple epoxy resin raw materials, avoiding the phenomenon of raw material blockage in the continuous flow reactor pipeline, facilitating the acceleration of the continuous reaction rate of the epoxy resin, and improving the reaction efficiency of the continuous flow reactor.

[0021] In this embodiment, a central control box 11 is fixed on the surface of the flow reactor frame 1, a feed pipe opening 21 is provided at the left end of the feed main pipe 2, and a discharge pipe opening 51 is provided at the left end of the discharge pipe 5. Feed pipes 31 are welded on the upper pipe surfaces of the feed main pipe 2, the discharge pipe 5 and the reaction elbow 3, and two groups of reaction elbows 3 and a first mixing straight pipe 4 are connected between the feed main pipe 2 and the discharge pipe 5.

[0022] As a preferred embodiment, the central control box 11 is used to control the temperature of the epoxy resin raw material during the reaction process and the conveying speed of the external pipeline pump. The feeding pipe 31 can add other ingredients, catalysts, etc. into the continuous reaction pipeline.

[0023] In this embodiment, an annular heater 6 is installed on the surface of the first straight mixing tube 4 , the second straight mixing tube 41 and the discharge tube 5 , and a temperature display screen 61 is provided on the surface of the annular heater 6 .

[0024] As a preferred embodiment, the annular heater 6 is used to improve the heating conditions in the reaction pipe, further accelerate the reaction speed of the raw materials in the pipe, thereby improving the overall epoxy resin raw material preparation efficiency, and the temperature display screen 61 can observe the heating temperature.

[0025] In this embodiment, the feed main pipe 2, the reaction elbow pipe 3, the first mixing straight pipe 4, the second mixing straight pipe 41 and the discharge pipe 5 form a continuous reaction pipeline.

[0026] As a preferred embodiment, the continuous reaction pipeline facilitates the step-by-step addition of various epoxy resin raw materials into the pipeline, so that the raw materials in the continuous reaction pipeline continuously enter, react, and are discharged, thereby accelerating the production efficiency of epoxy resin raw material preparation.

[0027] In this embodiment, the inner side of the connecting rod 72 is hollow, and two groups of turbine blades 71 are screwed to the upper and lower ends of the connecting rod 72. Double helical mixing blades 7 made of stainless steel are spirally distributed on the surface of the connecting rod 72.

[0028] As a preferred embodiment, the double helical mixing blades 7 are rotated by the fluid in the pipeline through two sets of turbine blades 71, thereby mixing the flowing epoxy resin raw material, so as to accelerate the continuous reaction rate of the epoxy resin.

[0029] The utility model discloses a continuous flow reactor for preparing epoxy resin, which can effectively solve the problem that continuous delivery of epoxy resin raw materials in the continuous flow reactor easily leads to insufficient reaction and raw material blockage, effectively promotes the mixed reaction of various raw materials of epoxy resin, avoids the phenomenon of raw material blockage in the pipeline of the continuous flow reactor, facilitates the acceleration of the continuous reaction rate of epoxy resin, improves the reaction efficiency of the continuous flow reactor, and is suitable for the continuous flow reactor for preparing epoxy resin.

Claims

1. A continuous flow reactor for preparing epoxy resin, comprising: A flow reactor frame (1), a feed pipe (2) and a discharge pipe (5), wherein the feed pipe (2) and the discharge pipe (5) are installed on the front side wall of the flow reactor frame (1), characterized in that: The feed main pipe (2) is connected to a reaction elbow (3) via a first mixing straight pipe (4), and the reaction elbow (3) is connected to a discharge pipe (5) via a second mixing straight pipe (41). The inner walls of the first mixing straight pipe (4) and the second mixing straight pipe (41) are provided with turbine blades (71) via a fixing frame (73), and a connecting rod (72) is fixed to the side of the turbine blade (71), and a double helical mixing blade (7) is welded to the surface of the connecting rod (72).

2. A continuous flow reactor for preparing epoxy resin according to claim 1, characterized in that: A central control box (11) is fixed on the surface of the flow reactor frame (1), a feed pipe opening (21) is provided at the left end of the feed main pipe (2), and a discharge pipe opening (51) is provided at the left end of the discharge pipe (5).

3. A continuous flow reactor for preparing epoxy resin according to claim 1, characterized in that: The feed pipe (31) is welded to the upper pipe surfaces of the feed main pipe (2), the discharge pipe (5) and the reaction elbow pipe (3), and two groups of reaction elbow pipes (3) and a first mixing straight pipe (4) are connected between the feed main pipe (2) and the discharge pipe (5).

4. A continuous flow reactor for preparing epoxy resin according to claim 1, characterized in that: An annular heater (6) is installed on the surface of the first straight mixing tube (4), the second straight mixing tube (41) and the discharge tube (5), and a temperature display screen (61) is provided on the surface of the annular heater (6).

5. A continuous flow reactor for preparing epoxy resin according to claim 1, characterized in that: The inner side of the connecting rod (72) is hollow; and two groups of turbine blades (71) are screwed on the upper and lower ends of the connecting rod (72).

6. A continuous flow reactor for preparing epoxy resin according to claim 1, characterized in that: The feed main pipe (2), the reaction elbow pipe (3), the first mixing straight pipe (4), the second mixing straight pipe (41) and the discharge pipe (5) form a continuous reaction pipeline.

7. A continuous flow reactor for preparing epoxy resin according to claim 1, characterized in that: The surface of the connecting rod (72) is spirally distributed with double helical mixing blades (7) made of stainless steel.

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