A new reactor for phenolic resin reaction

Abstract

The present invention belongs to the technical field of phenolic resin reaction, and discloses a novel reactor for phenolic resin reaction, wherein a gyrator is fixedly arranged at the center of a special-shaped coil; the special-shaped coil is fixedly arranged on the stirring shaft in parallel with the gyrator, and the upper and lower special-shaped coils are fixedly connected by an inclined stirring paddle; the temperature control medium inlet is fixedly arranged at the upper left position of the reactor body, and the temperature control medium outlet is fixedly arranged at the lower right position of the reactor body; the anchor-type stirring paddle is fixedly arranged at the bottom position of the stirring shaft. The invention greatly improves the uniformity of the stirring of the liquid phase of the phenolic resin reaction, improves the consistency and uniformity of the center temperature and the edge temperature of the phenolic resin reaction phase, and improves the product performance of the phenolic resin.

Description

Technical Field

[0001] The invention belongs to the technical field of phenolic resin reaction, and particularly relates to a novel reaction kettle for phenolic resin reaction. Background Art

[0002] In the production process of phenolic resin, the reaction of phenolic resin needs to be completed in a dedicated reactor. In addition to providing reaction space, the reactor will also heat up or cool down the phenolic resin according to the needs of different stages of the production process. If the temperature is not raised or lowered in time during the reaction of the phenolic resin, it is easy to cause the phenolic resin to denature, solidify, or even react violently, causing safety accidents; on the other hand, if the temperature of each point in the reaction phase is inconsistent during the production of the phenolic resin, it will cause the molecular weight distribution range of the phenolic resin to be too wide, thereby reducing the performance of the resin.

[0003] Since the resin reaction process requires stirring, in order not to affect the normal operation of the stirring component, the current phenolic resin dedicated reactor uses a reactor jacket or a built-in circular coil to adjust the reaction temperature, and the built-in coil is close to the inner wall of the reactor. The main technical problems of using the above scheme are: 1. Since the phenolic resin dedicated reactor is provided with a reactor jacket or a built-in circular coil to form a space separated up and down, the phenolic resin liquid phase is blocked from being evenly mixed up and down, causing the phenolic resin liquid to be stirred unevenly; 2. Under the stirring action of the stirring paddle, a turbulent phenolic resin liquid phase is formed, so that during the reaction, the center temperature and the edge temperature of the reaction phase are inconsistent, which can easily reduce the resin performance or cause a safety accident. Based on the above defects in the prior art, the inventor has developed a new reactor for phenolic resin reaction, which can solve the above problems in the prior art. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a novel reactor for phenolic resin reaction, which has a simple design structure, is scientific and reasonable, and can stir evenly. The present invention can increase or decrease the reaction temperature of the phenolic resin liquid phase by arranging multiple layers of special-shaped coils in the reactor and adding a control medium into the special-shaped coils to circulate them. At the same time, the bottom stirring paddle can be used in the stirring process to cooperate with the blocking effect of the special-shaped coils to make the evenly stirred phenolic resin liquid form a turbulent state, thereby improving the uniformity of stirring the phenolic resin and solving the problem that the central temperature and the edge temperature of the phenolic resin reaction phase are inconsistent, which easily reduces the resin performance or causes safety accidents.

[0005] The technical solution adopted by the present invention is: a new type of reactor for phenolic resin reaction, including a reactor body, a motor mounting frame, a stirring motor, and a stirring shaft; the reactor body is cylindrical in the middle and closed in circles at the top and bottom; the motor mounting frame is fixedly arranged in the middle position of the upper part of the reactor body, and is used to install and fix the stirring motor; the stirring shaft is arranged at the bottom position of the stirring motor, the upper part of the stirring shaft is fixedly connected to the power output shaft of the stirring motor, and the bottom of the stirring shaft extends from the upper part of the reactor body to the position near the bottom of the reactor body; the rotating body is fixedly arranged at the center position of the special-shaped coil, and the rotating body includes a protective shell, and the bearing is fixedly arranged on the protective shell. The center position is fixedly connected to the inner circumferential inner wall of the protective shell; the special-shaped coil is fixedly arranged on the stirring shaft in parallel with the upper and lower parts through the rotating body, and the upper and lower special-shaped coils are fixedly connected by the inclined stirring paddles arranged obliquely; the temperature control medium inlet is fixedly arranged at the upper left position of the reactor body, and the temperature control medium outlet is fixedly arranged at the lower right position of the reactor body, the temperature control medium inlet is fixedly connected to the left side of the upper special-shaped coil, and the temperature control medium outlet is fixedly connected to the right side of the lower special-shaped coil; the anchor-type stirring paddle is fixedly arranged at the bottom position of the stirring shaft, and the anchor-type stirring paddle is rotated by the rotation of the stirring shaft to stir the phenolic resin liquid.

[0006] The stirring shaft passes through the inner ring of the bearing and is fixedly connected thereto, and the stirring shaft also passes through the upper and lower center positions of the protective shell for sealing connection.

[0007] The outer circumference of the protection shell is fixedly connected to the center of the special-shaped coil, and the protection shell is a closed circular cavity.

[0008] The special-shaped coil includes a special-shaped coil body, which is circular in shape. The circumferential side wall of the special-shaped coil body is fixedly connected to the inner wall of the reactor body; the arc-shaped bending notch is symmetrically arranged at the front and rear sides of the special-shaped coil body; the diameter of the special-shaped coil body is smaller than the inner diameter of the reactor body.

[0009] The special-shaped coil body is formed by bending the tube and is circular with arc-shaped bending notches symmetrically arranged in front and back.

[0010] The special-shaped coil body is hollow in the middle, and arc-shaped bending notches are arranged at front and rear symmetrical positions of the special-shaped coil body.

[0011] Two to eight special-shaped coil bodies are arranged on the stirring shaft, and the front and rear arc-shaped bending notches of the upper and lower special-shaped coil bodies are arranged vertically or staggeredly.

[0012] The temperature control medium inlet is fixedly connected to the outlet of the circulation pump, and the temperature control medium outlet is fixedly connected to the outlet of the circulation pump.

[0013] The use process of this new reactor for phenolic resin reaction is as follows: first, the temperature control medium inlet is fixedly connected to the outlet of the circulation pump, and the temperature control medium outlet is fixedly connected to the outlet of the circulation pump. At this time, the circulation pump introduces circulating heating medium or cooling medium into the special-shaped coil. The temperature control medium in the special-shaped coil is circulated from the upper special-shaped coil to the lower special-shaped coil through the inclined stirring paddle; at the same time, the stirring motor is turned on to drive the stirring shaft to rotate through the rotation of its power output shaft. During the rotation of the stirring shaft, the anchor-type stirring paddle is driven to rotate through the bearing. At this time, the special-shaped coil and the inclined stirring paddle are not Rotation, during the rotation of the anchor-type stirring paddle, the phenolic resin liquid is uniformly stirred to form a rotating turbulent state. At the same time, the structural characteristics of the upper and lower special-shaped coils and the inclined stirring paddles arranged obliquely between them are used to block the turbulent phenolic resin liquid to form a uniformly stirred turbulent state. At the same time, the turbulent phenolic resin liquid is convected up and down through the arc-shaped bending notch of the vertically or dislocated special-shaped coils, thereby improving the uniformity of the stirring of the phenolic resin liquid in the reactor body, thereby ultimately improving the consistency and uniformity of the center temperature and edge temperature of the phenolic resin reaction phase. According to the temperature requirements at different stages in the phenolic resin reaction process, different temperature control media for cooling or heating can be input into the special-shaped coils through a circulating pump to meet the temperature requirements at different stages in the phenolic resin reaction process.

[0014] The rotating body is fixedly arranged at the center position of the special-shaped coil, and the rotating body includes a protective shell, a bearing is fixedly arranged at the center position of the protective shell, and the outer ring of the bearing is fixedly connected to the inner circumferential inner wall of the protective shell; the main purpose of such arrangement is to protect the bearing from being corroded by phenolic resin through the arrangement of the protective shell, thereby reducing the service life of the bearing; at the same time, by utilizing the arrangement of the bearing, the stirring shaft drives the anchor-type stirring paddle to rotate during the rotation process, while the special-shaped coil and the inclined stirring paddle remain stationary, which plays a role in preventing the rotation of the stirring shaft and the special-shaped coil from interfering with each other.

[0015] The special-shaped coil is fixedly arranged on the stirring shaft in parallel with the rotating body, and the upper and lower special-shaped coils are fixedly connected by the inclined stirring paddles arranged obliquely; the main purpose of such arrangement is: a multi-layer special-shaped coil is arranged inside the reactor body, on the one hand, the temperature control medium introduced into the multi-layer special-shaped coil can be used to heat or cool the phenolic resin liquid according to the demand for reaction temperature at different reaction stages of the phenolic resin, and on the other hand, the multi-layer special-shaped coil can improve the uniformity of the heating temperature or cooling temperature of the phenolic resin liquid phase, as well as the improvement of the heating efficiency or cooling efficiency. The inclined stirring paddle is arranged, on the one hand, the temperature control medium can be circulated to the next layer of special-shaped coil by the inclined stirring paddle, and on the other hand, when the stirring shaft drives the anchor-type stirring paddle to stir the phenolic resin, the phenolic resin liquid is formed into a turbulent state, and the blocking effect of the inclined stirring paddle is used to form a turbulent state of the turbulent phenolic resin liquid, thereby playing a role in mixing the center temperature and edge temperature of the phenolic resin liquid.

[0016] The special-shaped coil body is circular, and the circumferential side wall of the special-shaped coil body is fixedly connected to the inner wall of the reactor body; the main purpose of this arrangement is to fix the special-shaped coil body inside the reactor body, and use the inclined stirring paddles fixedly connected between the special-shaped coil and the upper and lower special-shaped coils to block the turbulent phenolic resin liquid, so as to form a turbulent phenolic resin stirring state, thereby improving the mixing effect of the center temperature and edge temperature of the phenolic resin liquid.

[0017] The arc-shaped bending notch is symmetrically arranged at the front and rear sides of the special-shaped coil body; the diameter of the special-shaped coil body is smaller than the inner diameter of the reactor body. The main purpose of this arrangement is: on the one hand, it plays a role in reducing its own weight, and on the other hand, the arc-shaped bending notch can make the phenolic resin stir and convect up and down in the reactor body, thereby improving the uniform stirring and the convection exchange efficiency of the phenolic resin in the reactor body.

[0018] The temperature control medium inlet is fixedly arranged at the upper left side of the reactor body, and the temperature control medium outlet is fixedly arranged at the lower right side of the reactor body. The temperature control medium inlet is fixedly connected to the left side of the upper special-shaped coil, and the temperature control medium outlet is fixedly connected to the right side of the lower special-shaped coil. The main purpose of such arrangement is to use a circulating pump to introduce a circulating heating medium or a cooling medium into the special-shaped coil, and the temperature control medium in the special-shaped coil is circulated from the upper special-shaped coil to the lower special-shaped coil through an inclined stirring paddle, so as to form a heat exchange structure for heating or cooling the phenolic resin liquid phase, thereby playing a role in circulating the temperature control medium on the phenolic resin liquid phase and controlling the temperature of the phenolic resin liquid phase at different reaction stages.

[0019] The anchor-type stirring paddle is fixedly arranged at the bottom of the stirring shaft, and the anchor-type stirring paddle rotates by the rotation of the stirring shaft to stir the phenolic resin liquid. The main purpose of such arrangement is to uniformly stir the phenolic resin liquid to form a rotating turbulent state during the rotation of the anchor-type stirring paddle.

[0020] The special-shaped coil body is provided with two to eight on the stirring shaft, and the front and rear arc-shaped bending notches of the upper and lower special-shaped coil bodies are vertically arranged or staggered. The main purpose of such arrangement is: when the front and rear arc-shaped bending notches are vertically arranged, a vertical channel for the phenolic resin liquid to convect upward and downward can be formed, thereby improving the efficiency of the phenolic resin liquid's vertical convection temperature exchange; when the rear arc-shaped bending notch is staggered upward and downward, the staggered upward and downward channel is utilized to extend the residence time of the phenolic resin liquid between the upper and lower special-shaped coils, thereby increasing the time of the upper and lower phenolic resin liquid's vertical convection temperature exchange, thereby improving the sufficiency of the phenolic resin liquid's vertical convection temperature exchange, thereby improving the uniformity of the upper and lower phenolic resin liquid's vertical temperature exchange.

[0021] The beneficial effects of the present invention are as follows: the present invention provides a novel reactor for phenolic resin reaction, which has a simple design structure, is scientific and reasonable, and has uniform stirring; it greatly improves the uniformity of stirring of the phenolic resin reaction liquid phase, improves the consistency and uniformity of the center temperature and edge temperature of the phenolic resin reaction phase, and improves the product performance of the phenolic resin. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Markings in the figure: 1. Reactor body, 2. Motor mounting frame, 3. Stirring motor, 4. Stirring shaft, 5. Rotating body, 51. Protective shell, 52. Bearing, 6. Special-shaped coil, 61. Special-shaped coil body, 62. Arc-shaped bending notch, 7. Inclined stirring paddle, 8. Temperature control medium inlet, 9. Temperature control medium outlet, 10. Anchor-type stirring paddle. DETAILED DESCRIPTION

[0024] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings.

[0025] As shown in the figure, a new reactor for phenolic resin reaction includes a reactor body 1, a motor mounting frame 2, a stirring motor 3, and a stirring shaft 4; the reactor body 1 is cylindrical in the middle and closed in circles at the top and bottom; the motor mounting frame 2 is fixedly arranged in the middle position of the upper part of the reactor body 1, and is used to install and fix the stirring motor 3; the stirring shaft 4 is arranged at the bottom position of the stirring motor 3, the upper part of the stirring shaft 4 is fixedly connected to the power output shaft of the stirring motor 3, and the bottom of the stirring shaft 4 extends from the upper part of the reactor body 1 to the position near the bottom of the reactor body 1; the rotating body 5 is fixedly arranged at the center position of the special-shaped coil 6, and the rotating body 5 includes a protective shell 51, and the bearing 52 is fixedly arranged at the center position of the protective shell 51 The outer ring of the bearing 52 is fixedly connected to the inner circumferential inner wall of the protective shell 51; the special-shaped coil 6 is fixedly arranged on the stirring shaft 4 in parallel with the rotating body 5, and the upper and lower special-shaped coils 6 are fixedly connected by the inclined stirring paddle 7 arranged obliquely; the temperature control medium inlet 8 is fixedly arranged at the upper left position of the reactor body 1, and the temperature control medium outlet 9 is fixedly arranged at the lower right position of the reactor body 1, the temperature control medium inlet 8 is fixedly connected to the left side of the upper special-shaped coil 6, and the temperature control medium outlet 9 is fixedly connected to the right side of the lower special-shaped coil 6; the anchor-type stirring paddle 10 is fixedly arranged at the bottom position of the stirring shaft 4, and the anchor-type stirring paddle 10 rotates by the rotation of the stirring shaft 4 to stir the phenolic resin liquid.

[0026] The stirring shaft 4 passes through the inner ring of the bearing 52 and is fixedly connected thereto. The stirring shaft 4 also passes through the upper and lower center positions of the protective shell 51 and is sealed therewith.

[0027] The outer circumference of the protection shell 51 is fixedly connected to the center of the special-shaped coil 6, and the protection shell 51 is a closed circular cavity.

[0028] The special-shaped coil 6 includes a special-shaped coil body 61, which is circular in shape. The circumferential side wall of the special-shaped coil body 61 is fixedly connected to the inner wall of the reactor body 1; the arc-shaped bending notch 62 is symmetrically arranged at the front and rear sides of the special-shaped coil body 61; the diameter of the special-shaped coil body 61 is smaller than the inner diameter of the reactor body 1.

[0029] The special-shaped coil body 61 is formed by bending the tube and is circular with arc-shaped bending notches 61 symmetrically arranged in the front and rear.

[0030] The special-shaped coil body 61 is hollow in the middle, and arc-shaped bending notches 61 are provided at front and rear symmetrical positions of the special-shaped coil body 61 .

[0031] Two to eight special-shaped coil bodies 61 are arranged on the stirring shaft 4 , and the front and rear arc-shaped bending notches 61 of the upper and lower special-shaped coil bodies 61 are arranged vertically or staggeredly.

[0032] The temperature control medium inlet 8 is fixedly connected to the outlet of the circulation pump, and the temperature control medium outlet 9 is fixedly connected to the outlet of the circulation pump.

[0033] The use process of this novel reactor for phenolic resin reaction is as follows: first, the temperature control medium inlet 8 is fixedly connected to the outlet of the circulation pump, and the temperature control medium outlet 9 is fixedly connected to the outlet of the circulation pump. At this time, the circulation pump introduces circulating heating medium or cooling medium into the special-shaped coil 6, and the temperature control medium in the special-shaped coil 6 is circulated from the upper special-shaped coil 6 to the lower special-shaped coil 6 through the inclined stirring paddle 7; at the same time, the stirring motor 3 is turned on and the stirring shaft 4 is driven to rotate through the rotation of its power output shaft. During the rotation of the stirring shaft 4, the anchor-type stirring paddle 10 is driven to rotate through the bearing 52. At this time, the special-shaped coil 6 and the inclined stirring paddle 7 are connected. The stirring paddle 7 does not rotate. During the rotation of the anchor-type stirring paddle 10, the phenolic resin liquid is uniformly stirred to form a rotating turbulent state. At the same time, the structural characteristics of the upper and lower special-shaped coils 6 and the inclined stirring paddle 7 arranged obliquely between them are used to block the turbulent phenolic resin liquid to form a uniformly stirred turbulent state. At the same time, the turbulent phenolic resin liquid is convected up and down through the arc-shaped bending notch 62 of the vertically or dislocated special-shaped coils 6, thereby improving the uniformity of the stirring of the phenolic resin liquid in the reactor body 1, thereby ultimately improving the consistency and uniformity of the center temperature and edge temperature of the phenolic resin reaction phase. According to the temperature requirements at different stages in the phenolic resin reaction process, different temperature control media for cooling or heating can be input into the special-shaped coils 6 through a circulating pump to meet the temperature requirements at different stages in the phenolic resin reaction process.

[0034] Embodiment 1

[0035] The special-shaped coil 6 is fixedly arranged on the stirring shaft 4 in parallel up and down through the rotating body 5, and the upper and lower special-shaped coils 6 are fixedly connected by the inclined stirring paddle 7 arranged obliquely; two to eight special-shaped coil bodies 61 are arranged on the stirring shaft 4, and the front and rear arc-shaped bending notches 61 of the upper and lower special-shaped coil bodies 61 are arranged in an upper and lower staggered manner; the special-shaped coil 6 includes a special-shaped coil body 61, the special-shaped coil body 61 is circular, and the circumferential side wall of the special-shaped coil body 61 is fixedly connected to the inner wall of the reactor body 1; the arc-shaped bending notches 62 are symmetrically arranged at the front and rear sides of the special-shaped coil body 61; the diameter of the special-shaped coil body 61 is smaller than the inner diameter of the reactor body 1;.

[0036] Embodiment 2

[0037] The special-shaped coil 6 is fixedly arranged on the stirring shaft 4 in parallel with the rotating body 5, and the upper and lower special-shaped coils 6 are fixedly connected by the inclined stirring paddle 7 arranged obliquely; two to six special-shaped coil bodies 61 are arranged on the stirring shaft 4, and the front and rear arc-shaped bending notches 61 of the upper and lower special-shaped coil bodies 61 are arranged vertically up and down; the special-shaped coil 6 includes a special-shaped coil body 61, the special-shaped coil body 61 is circular, and the circumferential side wall of the special-shaped coil body 61 is fixedly connected to the inner wall of the reactor body 1; the arc-shaped bending notches 62 are symmetrically arranged at the front and rear sides of the special-shaped coil body 61; the diameter of the special-shaped coil body 61 is smaller than the inner diameter of the reactor body 1; the special-shaped coil body 61 is formed by bending the tube, and has a circular shape with arc-shaped bending notches 61 symmetrically at the front and rear sides.

[0038] Various modifications to the above embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A reactor for phenolic resin reaction, comprising a reactor body, a motor mounting frame, a stirring motor, and a stirring shaft; the reactor body is cylindrical in the middle and closed in circles at the top and bottom; the motor mounting frame is fixedly arranged at the middle position of the upper part of the reactor body, and is used to install and fix the stirring motor; the stirring shaft is arranged at the bottom position of the stirring motor, the upper part of the stirring shaft is fixedly connected to the power output shaft of the stirring motor, and the bottom of the stirring shaft extends from the upper part of the reactor body to the position near the bottom of the reactor body; characterized in that: The rotating body is fixedly arranged at the center of the special-shaped coil, the rotating body includes a protective shell, a bearing is fixedly arranged at the center of the protective shell, the outer ring of the bearing is fixedly connected to the inner circumferential inner wall of the protective shell, the outer circumferential side of the protective shell is fixedly connected to the center of the special-shaped coil, and the protective shell is a closed circular cavity; the special-shaped coil is fixedly arranged on the stirring shaft in parallel up and down through the rotating body, and the upper and lower special-shaped coils are fixedly connected by inclined stirring paddles arranged obliquely; the special-shaped coil includes a special-shaped coil body, the special-shaped coil body is circular, and the circumferential side wall of the special-shaped coil body is fixedly connected to the inner wall of the reactor body; the arc-shaped bending notch is symmetrically arranged at the front and rear sides of the special-shaped coil body; the diameter of the special-shaped coil body is smaller than the inner diameter of the reactor body; The temperature control medium inlet is fixedly arranged at the upper left position of the reactor body, and the temperature control medium outlet is fixedly arranged at the lower right position of the reactor body. The temperature control medium inlet is fixedly connected to the left side of the upper special-shaped coil, and the temperature control medium outlet is fixedly connected to the right side of the lower special-shaped coil; the anchor-type stirring paddle is fixedly arranged at the bottom position of the stirring shaft, and the anchor-type stirring paddle rotates by the rotation of the stirring shaft to stir the phenolic resin liquid.

2. A reactor for phenolic resin reaction according to claim 1, characterized in that: The stirring shaft passes through the inner ring of the bearing and is fixedly connected thereto, and the stirring shaft also passes through the upper and lower center positions of the protective shell and is sealed and connected thereto.

3. The reactor for phenolic resin reaction according to claim 1, characterized in that: The body of the special-shaped coil is formed by bending the tube, and is symmetrically circular with arc-shaped bending notches at the front and back.

4. The reactor for phenolic resin reaction according to claim 1, characterized in that: The special-shaped coil body is hollow in the middle, and arc-shaped bending notches are arranged at front and rear symmetrical positions of the special-shaped coil body.

5. The reaction kettle for phenolic resin reaction according to claim 1, characterized in that: Two to eight special-shaped coil bodies are arranged on the stirring shaft, and the front and rear arc-shaped bending notches of the upper and lower special-shaped coil bodies are arranged vertically or staggeredly.

6. The reaction kettle for phenolic resin reaction according to claim 1, characterized in that: The inlet of the temperature control medium is fixedly connected to the outlet of the circulation pump, and the outlet of the temperature control medium is fixedly connected to the outlet of the circulation pump.

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