Heating reaction kettle for phenolic resin production

Abstract

The utility model relates to the field of phenolic resin production, in particular to a heating reaction kettle for phenolic resin production. The utility model provides a phenolic resin production heating reaction kettle capable of scraping and heating cresol and phenol. A phenolic resin production heating reaction kettle comprises an outer tank body, a tank cover, a discharging pipe, an inner tank body, a stirrer and a heating pipe, the outer tank body is fixedly connected with the tank cover, the tank cover is connected and communicated with the discharging pipe, the inner tank body is fixedly connected into the outer tank body, the top of the tank cover is fixedly connected with a motor, and an output shaft of the motor extends into the outer tank body and the inner tank body. And an output shaft of the motor is fixedly connected with a heating pipe. By starting the motor, the heating pipe, the scraping frame, the ejector rod and the wedge block are matched, then cresol and phenol on the inner wall of the inner tank body are scraped by the scraping frame, waste is avoided, meanwhile, the cresol and the phenol are heated by heating of the scraping frame, and the reaction speed of the cresol and the phenol is increased.

Description

Technical Field

[0001] The utility model relates to the field of phenolic resin production, in particular to a heating reaction kettle for phenolic resin production. Background Art

[0002] Phenolic resin is a colorless or yellowish brown transparent substance, insoluble in water, soluble in organic solvents such as acetone and alcohol. Phenolic resin has the characteristics of high temperature resistance and is used in some high temperature fields, such as refractory materials, friction materials and foundry industry. Moreover, phenolic resin is compatible with various organic and inorganic fillers and can be used as a binder. Phenolic resin is mainly condensed from phenols and aldehydes, among which phenols are generally phenol, which is powdered, and aldehydes are cresol, which is liquid. When producing phenolic resin, cresol and phenol need to be poured into the reactor for mixing reaction to obtain phenolic resin.

[0003] The patent with the patent authorization announcement number CN213467580U discloses a phenolic resin reactor, including a reactor body and a feeding mechanism for conveying powdered phenol to the bottom of the inner cavity of the reactor body, and the reactor body is provided with a stirring mechanism. Although the above patent can reduce the siltation of phenol by setting a stirring mechanism, when stirring cresol and phenol, cresol and phenol will stick to the inner wall of the reactor body, and cresol and phenol cannot be scraped off, which is easy to cause waste, and the reactor body does not have a heating function, and the reaction speed of cresol and phenol cannot be accelerated.

[0004] Therefore, a phenolic resin production heating reaction kettle capable of scraping off and heating cresol and phenol is particularly needed to solve the problems existing in the prior art. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art that cresol and phenol will stick to the inner wall of the reactor body when stirring them, and the cresol and phenol cannot be scraped off, which easily causes waste, and the reactor body has no heating function and cannot accelerate the reaction speed of cresol and phenol, the utility model provides a phenolic resin production heating reactor capable of scraping off and heating cresol and phenol.

[0006] The utility model is realized by the following technical means: a phenolic resin production heating reaction kettle, comprising an outer tank body, a tank cover, a feeding pipe, an inner tank body, a stirrer, a heating pipe, a guide pipe and a motor, the outer tank body is fixedly connected with the tank cover, the tank cover is connected and communicated with the feeding pipe, the inner tank body is fixedly connected inside the outer tank body, the top of the tank cover is fixedly connected with the motor, the output shaft of the motor extends into the outer tank body and the inner tank body, and the output shaft of the motor is fixedly connected with the heating pipe, the interior of the heating pipe is filled with heat transfer oil, and both sides of the heating pipe A guide tube is slidably connected, the guide tube is connected to the inside of the heating tube, and a stirrer is fixedly connected to the middle of the heating tube. The characteristic is that it also includes a scraper rack, a push rod, a wedge block and a one-way valve. The two guide tubes are fixedly connected to the scraper rack, the upper transverse parts of the two guide tubes are fixedly connected to the push rod, at least two wedge blocks are fixedly connected to the upper end of the inner wall of the inner tank body, and the upper part of the guide tube is located inside the heating tube. The position fixedly connected to the one-way valve is used to prevent the heat transfer oil inside the heating tube from flowing back into the heating tube from the upper part.

[0007] Optionally, the heating tube is sealed and connected to the flow guide tube, and the flow guide tube is slidably installed in a C-shape on both sides of the heating tube.

[0008] Optionally, a cooling pipe is further included. The inner part of the outer tank body is connected to the cooling pipe. The cooling pipe is distributed around the outer wall of the inner tank body in a spring-like shape. The cooling pipe is used to cool the inner tank body.

[0009] Optionally, the agitator is spiral-shaped.

[0010] Optionally, the scraper frame is made of aluminum alloy.

[0011] Optionally, a rubber protrusion is embedded and connected to one end of the push rod away from the heating tube, and the rubber protrusion at the end of the push rod away from the heating tube can contact the wedge block.

[0012] Optionally, an elastic member is further included. The elastic member is sleeved on the upper part of the guide tube near the heating tube, and the two ends of the elastic member are respectively connected to the top rod and the heating tube.

[0013] Optionally, an exhaust hood and a lifting frame are further included. The lifting frame is slidably mounted on the tank cover, and an exhaust hood for over-pressure exhaust is provided at the lower part of the lifting frame.

[0014] Optionally, a return spring is also included, and the return spring is connected between the lifting frame and the tank cover.

[0015] Optionally, a discharge pipe is further included, the inner tank body is connected and communicated with the discharge pipe, and the discharge pipe passes through the outer tank body.

[0016] The above description of the structure of the utility model shows that the design starting point, concept and advantages of the utility model are:

[0017] 1. By turning on the motor, the heating tube, scraper frame, push rod and wedge block are coordinated, so that the scraper frame can scrape off the cresol and phenol on the inner wall of the inner tank to avoid waste. At the same time, the scraper frame heats up the cresol and phenol to accelerate the reaction speed of cresol and phenol.

[0018] 2. By setting up a cooling pipe, the outer wall of the inner tank body is cooled to prevent the inner tank body from being too high and causing the outer tank body to become hot.

[0019] 3. By setting up a lifting frame and an exhaust hood, the effect of automatic pressure relief can be achieved to prevent the inner tank from bursting due to excessive air pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0021] Figure 2 This is a schematic diagram of the first partial cross-sectional structure of the utility model.

[0022] Figure 3 This is a schematic diagram of a first partial three-dimensional structure of the utility model.

[0023] Figure 4 This is a schematic diagram of a second partial cross-sectional structure of the utility model.

[0024] Figure 5 This is a third partial cross-sectional structural schematic diagram of the utility model.

[0025] Figure 6 This is a schematic diagram of a second partial three-dimensional structure of the utility model.

[0026] In the above drawings: 1. outer tank body, 2. tank cover, 3. cooling pipe, 4. discharge pipe, 5. inner tank body, 6. agitator, 7. heating pipe, 701, guide pipe, 8. motor, 9. scraper rack, 10. push rod, 11. elastic part, 12. wedge block, 13. exhaust hood, 14. lifting frame, 15. one-way valve, 16. discharge pipe, 17. reset spring. DETAILED DESCRIPTION

[0027] Reference to an embodiment herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0028] Example 1: A heating reactor for producing phenolic resin, see Figure 1-Figure 5As shown, it includes an outer tank body 1, a tank cover 2, a cooling pipe 3, a feeding pipe 4, an inner tank body 5, a stirrer 6, a heating pipe 7, a guide pipe 701 and a motor 8. The outer tank body 1 is connected to the tank cover 2 by bolts, and the tank cover 2 is connected and communicated with the feeding pipe 4. The inner tank body 5 is connected to the outer tank body 1 by bolts. The outer tank body 1 is connected to the cooling pipe 3. The cooling pipe 3 is distributed around the outer wall of the inner tank body 5 in a spring-like manner. The cooling pipe 3 is used to cool the inner tank body 5. The top of the tank cover 2 is connected to the motor 8 by bolts. The output of the motor 8 The shaft extends into the outer tank body 1 and the inner tank body 5, and a heating tube 7 is fixedly connected to the output shaft of the motor 8. The heating tube 7 is filled with heat transfer oil. The two sides of the heating tube 7 are slidably connected with guide tubes 701. The guide tube 701 is connected to the inside of the heating tube 7. The heating tube 7 is sealed and connected to the guide tube 701. The guide tube 701 is C-shaped and slidably installed on both sides of the heating tube 7. The guide tube 701 is used for the flow of heat transfer oil. The middle part of the heating tube 7 is fixedly connected with a stirrer 6 by bolts. The stirrer 6 is spiral-shaped and is used to stir cresol and phenol. The inner tank body 5 includes a scraper frame 9, a push rod 10, an elastic member 11, a wedge block 12, a one-way valve 15 and a discharge pipe 16. The two guide pipes 701 are fixedly connected with the scraper frame 9, and the scraper frame 9 is made of aluminum alloy. The upper lateral part of the two guide pipes 701 is fixedly connected with the push rod 10, and the end of the push rod 10 away from the heating pipe 7 is embedded with a rubber convex block. The upper end of the inner wall of the inner tank body 5 is connected with at least two wedge blocks 12 by welding. The rubber convex block on the end of the push rod 10 away from the heating pipe 7 can contact with the wedge block 12, and the upper part of the guide pipe 701 is close to the inner wall of the inner tank body 5. An elastic member 11 is sleeved on the position of the heating tube 7, and both ends of the elastic member 11 are respectively connected to the top rod 10 and the heating tube 7. The elastic member 11 is used to assist the guide tube 701 and the scraper frame 9 to move and reset, and to buffer the collision force between the scraper frame 9 and the inner tank body 5. The upper part of the guide tube 701 located inside the heating tube 7 is connected to a one-way valve 15 by bolts. The one-way valve 15 is used to prevent the heat transfer oil inside the heating tube 7 from flowing back into the guide tube 701 from the upper part. The bottom of the inner tank body 5 is connected and communicated with a discharge pipe 16, and the discharge pipe 16 passes through the outer tank body 1.

[0029] When it is necessary to make phenolic resin, the staff connects the feed pipe with the discharge pipe 16, and sequentially lowers cresol and phenol into the inner tank body 5 through the discharge pipe 4, and then turns on the motor 8. The output shaft of the motor 8 rotates to drive the heating tube 7 and the stirrer 6 to rotate, so that the cresol and phenol are mixed and reacted under the stirring of the stirrer 6. When the heating tube 7 rotates, it drives the guide tube 701 and the scraper rack 9 to rotate, so that the scraper rack 9 scrapes the cresol and phenol on the inner wall of the inner tank body 5, and then turns on the heating tube 7 to run and heat the heat transfer oil inside it. When the guide tube 701 rotates to a suitable angle, the push rod 10 is squeezed by the wedge block 12 to move toward the heating tube 7, and the elastic member 11 is compressed accordingly, thereby driving the guide tube 701 to move toward the heating tube 7, and the one-way valve 15 on the upper part of the guide tube 701 pushes the heating oil. The heat transfer oil inside the tube 7 flows, so that the heat transfer oil inside the heating tube 7 flows into the guide tube 701 from the lower part of the guide tube 701, and flows back to the heating tube 7 from the one-way valve 15 on the upper part of the guide tube 701. The one-way valve 15 can prevent the heat transfer oil inside the heating tube 7 from flowing back into the guide tube 701 from the upper part, so as to realize the circulation of the heat transfer oil, so that the scraper frame 9 on the guide tube 701 generates heat to heat the cresol and phenol, thereby accelerating the reaction speed of the cresol and phenol, so that the heat transfer oil in the heating tube 7 can be evenly distributed, and a better heating effect is achieved. The reacted cresol and phenol enter the feed pipe through the discharge pipe 16, and then the staff turns on the cooling pipe 3 to make it run to cool the outer wall of the inner tank body 5 to prevent the inner tank body 5 from being too high and causing the outer tank body 1 to become hot.

[0030] Example 2: Based on Example 1, refer to Figure 1 , Figure 3 and Figure 6 As shown, it also includes an exhaust hood 13, a lifting frame 14 and a reset spring 17. The lifting frame 14 is slidably mounted on the tank cover 2, and a reset spring 17 is connected between the lifting frame 14 and the tank cover 2. The lower part of the lifting frame 14 is provided with an exhaust hood 13 for over-pressure exhaust.

[0031] When the internal air pressure of the inner tank body 5 is too high, the lifting frame 14 is squeezed by the air pressure and moves upward. At this time, the return spring 17 is compressed, and the exhaust hood 13 moves upward and extends out of the tank cover 2, so that the internal gas of the inner tank body 5 is discharged through the exhaust hood 13, thereby achieving the effect of automatic pressure relief, avoiding the internal air pressure of the inner tank body 5 from bursting. When the internal air pressure of the inner tank body 5 is normal, the lifting frame 14 moves down to its original position under the reset action of the return spring 17.

[0032] Although the utility model is described in detail with reference to the above embodiments, it is obvious to those skilled in the art through this disclosure that various changes or modifications can be made to the utility model without departing from the principle and spirit of the utility model defined by the claims. Therefore, the detailed description of the embodiments of the present disclosure is only used to explain, not to limit the utility model, but the scope of protection is limited by the content of the claims.

Claims

1. A heating reaction kettle for producing phenolic resin, comprising an outer tank body (1), a tank cover (2), a feed pipe (4), an inner tank body (5), an agitator (6), a heating tube (7), a guide tube (701) and a motor (8), wherein the outer tank body (1) is fixedly connected with the tank cover (2), the feed pipe (4) is connected and communicated with the tank cover (2), the inner tank body (5) is fixedly connected inside the outer tank body (1), the top of the tank cover (2) is fixedly connected with the motor (8), the output shaft of the motor (8) extends into the outer tank body (1) and the inner tank body (5), and the output shaft of the motor (8) is fixedly connected with the heating tube (7), the heating tube (7) is filled with heat transfer oil, the two sides of the heating tube (7) are slidably connected with the guide tube (701), the guide tube (701) is communicated with the inside of the heating tube (7), the middle of the heating tube (7) is fixedly connected with the agitator (6), and the characteristic is that The invention also comprises a scraper frame (9), a push rod (10), a wedge block (12) and a one-way valve (15); the two guide tubes (701) are fixedly connected to the scraper frame (9); the upper transverse parts of the two guide tubes (701) are fixedly connected to the push rod (10); the upper end of the inner wall of the inner tank body (5) is fixedly connected to at least two wedge blocks (12); the upper part of the guide tube (701) is located inside the heating tube (7) and is fixedly connected to the one-way valve (15); the one-way valve (15) is used to prevent the heat transfer oil inside the heating tube (7) from flowing back from the upper part into the heating tube (7).

2. A phenolic resin production heating reaction kettle according to claim 1, characterized in that: The heating tube (7) is sealedly connected to the flow guide tube (701), and the flow guide tube (701) is slidably mounted on both sides of the heating tube (7) in a C-shape.

3. A phenolic resin production heating reaction kettle according to claim 2, characterized in that: It also includes a cooling pipe (3), the interior of the outer tank body (1) is connected to the cooling pipe (3), the cooling pipe (3) is distributed around the outer wall of the inner tank body (5) in a spring-like manner, and the cooling pipe (3) is used to cool the inner tank body (5).

4. A phenolic resin production heating reactor according to claim 3, characterized in that: The stirrer (6) is in a spiral shape.

5. A phenolic resin production heating reaction kettle according to claim 4, characterized in that: The scraper frame (9) is made of aluminum alloy.

6. A heating reaction kettle for producing phenolic resin according to claim 5, characterized in that: A rubber bulge is embedded and connected to the end of the push rod (10) away from the heating tube (7), and the rubber bulge at the end of the push rod (10) away from the heating tube (7) can contact the wedge block (12).

7. A heating reaction kettle for producing phenolic resin according to claim 6, characterized in that: It also includes an elastic member (11), which is sleeved on the upper part of the flow guide tube (701) near the heating tube (7), and the two ends of the elastic member (11) are respectively connected to the top rod (10) and the heating tube (7).

8. A heating reaction kettle for producing phenolic resin according to claim 7, characterized in that: It also comprises an exhaust hood (13) and a lifting frame (14). The lifting frame (14) is slidably mounted on the tank cover (2), and the exhaust hood (13) for overpressure exhaust is arranged at the lower part of the lifting frame (14).

9. A heating reaction kettle for producing phenolic resin according to claim 8, characterized in that: It also includes a return spring (17), and the return spring (17) is connected between the lifting frame (14) and the tank cover (2).

10. A heating reaction kettle for producing phenolic resin according to claim 9, characterized in that: It also includes a discharge pipe (16), the inner tank body (5) is connected to and communicates with the discharge pipe (16), and the discharge pipe (16) passes through the outer tank body (1).

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