A reaction vessel for the production of urea-formaldehyde resin

Abstract

This utility model relates to the field of urea-formaldehyde resin production technology and discloses a reactor for urea-formaldehyde resin production, including a reactor body, a cooling chamber at the bottom of the outer surface of the reactor body, an inlet pipe at the left end face of the cooling chamber, and a drain pipe at the bottom right side of the cooling chamber. This reactor for urea-formaldehyde resin production heats the material by setting the temperature range of the temperature controller to the desired reaction temperature range. After the urea-formaldehyde resin mixture in the reactor body has reacted completely, the control valve and the first drive motor are opened. When the first drive motor is opened, it drives the auger conveyor installed on its output end to rotate, thereby allowing the material in the reactor body to enter the discharge pipe and finally be discharged from the outlet pipe under the drive of the auger conveyor. Simultaneously, the auger conveyor can effectively prevent the reacted material from clogging in the discharge pipe, thus preventing blockage.

Description

Technical Field

[0001] This utility model relates to the field of urea-formaldehyde resin production technology, specifically a reaction vessel for urea-formaldehyde resin production. Background Technology

[0002] Urea-formaldehyde adhesive is formed by the condensation of urea and formaldehyde into an initial urea-formaldehyde resin under the action of a catalyst (alkaline or acidic catalyst), and then into an infusible and insoluble final resin adhesive under the action of a curing agent or additives.

[0003] Because urea-formaldehyde resin cures relatively quickly at room temperature, and traditional urea-formaldehyde resin production equipment does not have any anti-clogging structure after the urea-formaldehyde resin production is completed, some urea-formaldehyde resin may remain in the discharge pipe when it is discharged. Therefore, after multiple discharges, the residual urea-formaldehyde resin in the discharge pipe may accumulate and cause blockage at the discharge port, thus affecting the production of urea-formaldehyde resin. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a reactor for urea-formaldehyde resin production. This solves the problem mentioned in the background section: because urea-formaldehyde resin cures quickly at room temperature, and traditional urea-formaldehyde resin production equipment lacks any anti-clogging structure after production, some resin may remain in the discharge pipe after discharge. Repeated discharges can lead to resin buildup in the discharge pipe, causing blockage at the discharge port and affecting urea-formaldehyde resin production.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a reaction vessel for urea-formaldehyde resin production, comprising a reaction vessel body, a cooling chamber disposed at the bottom of the outer surface of the reaction vessel body, an inlet pipe disposed on the left end face of the cooling chamber, a drain pipe disposed at the bottom right end face of the cooling chamber, a discharge pipe disposed at the bottom of the cooling chamber, the discharge pipe being connected to the bottom of the reaction vessel body, a control valve disposed on the discharge pipe, a first drive motor fixedly mounted at the bottom of the discharge pipe, the output end of the first drive motor extending into the discharge pipe, a auger conveyor fixedly mounted at the output end of the first drive motor, and a discharge pipe disposed on the right end face of the discharge pipe.

[0006] By adopting the above technical solution, the control valve and the first drive motor are opened. When the first drive motor is opened, it will drive the auger conveyor installed on its output end to rotate, so that the material in the main body of the reactor enters the discharge pipe and is finally discharged from the discharge pipe under the drive of the auger conveyor. At the same time, the auger conveyor can effectively prevent the reacted material from clogging in the discharge pipe, thereby preventing blockage.

[0007] Preferably, a controller is provided on the outer surface of the reactor body, and a temperature controller is provided on the outer surface of the reactor body. The detection end of the temperature controller is located inside the reactor body, and the temperature controller and the controller are electrically connected.

[0008] By adopting the above technical solution, the temperature range of the REX-C100 temperature controller is set within the required reaction temperature range, thereby enabling the temperature controller to drive the heater installed in the heating chamber to heat the reactor. Since the detection end of the temperature controller is located inside the reactor body, when the temperature inside the reactor body is lower than the temperature set by the temperature controller, the temperature controller will control the heater to increase the temperature inside the reactor body.

[0009] Preferably, a heating chamber is formed inside the main body of the reactor, and a heater is installed inside the heating chamber. The heater and the temperature controller are electrically connected.

[0010] Using the above technical solution, when the temperature inside the reactor body is lower than the temperature set by the temperature controller, the temperature controller will control the heater to increase the temperature inside the reactor body.

[0011] Preferably, a feed pipe is provided on the left side of the reactor body near the top, a second drive motor is fixedly installed at the top of the reactor body, a connecting rod is fixedly installed at the output end of the second drive motor, the connecting rod extends through the reactor body, and a plurality of first stirring rods arranged in a linear array are fixedly installed on the outer end surface of the connecting rod.

[0012] Using the above technical solution, the raw materials for urea-formaldehyde resin are fed into the reactor body through the feed pipe installed on the reactor body. Then, the operator controls the second drive motor through the controller, which drives the connecting rod installed on the output end to rotate. When the connecting rod rotates, it drives the first stirring rod to stir the materials in the reactor body, thereby mixing them.

[0013] Preferably, the first stirring rod has a plurality of mounting slots arranged in a linear array, and a collar is rotatably mounted in the mounting slot. Four second stirring rods are fixedly mounted on the outer end surface of the collar, and the four second stirring rods are arranged in a circumferential array on the outer end surface of the collar.

[0014] By adopting the above technical solution, multiple mounting slots are opened on the first stirring rod, and a collar is rotatably mounted on the mounting slot. Therefore, when the first stirring rod rotates, the collar will drive the second stirring rod mounted on it to rotate as well, thereby enabling the second stirring rod to stir the material in the reactor body in different directions, thereby improving the reaction efficiency of the material in the reactor body.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The urea-formaldehyde resin production reactor uses a heater to heat the reactor by setting the temperature range of the temperature controller within the desired reaction temperature range. After the urea-formaldehyde resin mixture in the reactor body has reacted completely, the control valve and the first drive motor are opened. When the first drive motor is opened, it drives the auger conveyor installed on its output end to rotate, so that the material in the reactor body enters the discharge pipe and is finally discharged from the discharge pipe under the drive of the auger conveyor. At the same time, the auger conveyor can effectively prevent the reacted material from clogging in the discharge pipe, thus preventing blockage.

[0017] 2. The urea-formaldehyde resin production reactor uses a controller to control the second drive motor, which in turn drives the connecting rod installed on the output end to rotate. When the connecting rod rotates, it drives the first stirring rod to stir the material in the reactor body, thus mixing it. Since the first stirring rod has multiple mounting slots, and there are rotating collars on the mounting slots, when the first stirring rod rotates, the collars will drive the second stirring rod installed on it to rotate as well. This allows the second stirring rod to stir the material in the reactor body in different directions, thereby improving the reaction efficiency of the material in the reactor body. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the reaction vessel used for the production of urea-formaldehyde resin according to this utility model;

[0019] Figure 2 This is a side view of the reaction vessel used in the production of urea-formaldehyde resin according to this utility model.

[0020] Figure 3 This is a schematic diagram of the internal structure of the reaction vessel used in the production of urea-formaldehyde resin according to this utility model;

[0021] Figure 4This is a schematic diagram of the connecting rod and related structures of this utility model.

[0022] In the diagram: 1. Reactor body; 2. Cooling chamber; 3. Inlet pipe; 4. Drain pipe; 5. Discharge pipe; 6. Control valve; 7. First drive motor; 8. Conveyor; 9. Discharge pipe; 10. Controller; 11. Temperature controller; 12. Heating chamber; 13. Heater; 14. Inlet pipe; 15. Second drive motor; 16. Connecting rod; 17. First stirring rod; 18. Mounting groove; 19. Collar; 20. Second stirring rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1:

[0025] Referring to Figures 1-4, a reaction vessel for producing urea-formaldehyde resin is described. The reaction vessel body 1 has a cooling chamber 2 located at the bottom of its outer surface. An inlet pipe 3 is located on the left end face of the cooling chamber 2, and a drain pipe 4 is located at the bottom right side. A discharge pipe 5 is located at the bottom of the cooling chamber 2 and is connected to the bottom of the reaction vessel body 1. A control valve 6 is installed on the discharge pipe 5, and a first drive motor 7 is fixedly mounted at the bottom of the discharge pipe 5. The output end of the first drive motor 7 extends into the discharge pipe 5. A auger conveyor 8 is fixedly installed at the output end of the first drive motor 7. A discharge pipe 9 is provided on the right end face of the discharge pipe 5. A controller 10 is provided on the outer surface of the reactor body 1. A temperature controller 11 is provided on the outer surface of the reactor body 1. The detection end of the temperature controller 11 is located inside the reactor body 1. The temperature controller 11 and the controller 10 are electrically connected. A heating chamber 12 is opened inside the reactor body 1. A heater 13 is provided inside the heating chamber 12. The heater 13 and the temperature controller 11 are electrically connected.

[0026] Working principle: Operators can inject condensate into the cooling chamber 2 through the inlet pipe 3, thereby cooling the material inside the reactor body 1. A drain pipe 4 at the bottom of the cooling chamber 2 allows the condensate to drain out. When the operator needs to stir the material inside the reactor body 1 to initiate the reaction, they set the temperature range of the REX-C100 temperature controller 11 to the desired reaction temperature range. This causes the temperature controller 11 to activate the heater 13 inside the heating chamber 12. Since the detection end of the temperature controller 11 is located inside the reactor body 1... Therefore, when the temperature inside the reactor body 1 is lower than the temperature set by the temperature controller 11, the temperature controller 11 will control the heater 13 to increase the temperature inside the reactor body 1. After the urea-formaldehyde resin reaction is completed inside the reactor body 1, the operator opens the control valve 6 and the first drive motor 7. When the first drive motor 7 is opened, it will drive the auger conveyor 8 installed on its output end to rotate, so that the material inside the reactor body 1 enters the discharge pipe 5 and is finally discharged from the discharge pipe 9 under the drive of the auger conveyor 8. At the same time, the auger conveyor 8 can effectively prevent the reacted material from clogging inside the discharge pipe 5, thus preventing blockage.

[0027] Example 2:

[0028] Referring to Figures 1-4, a reaction vessel for producing urea-formaldehyde resin is provided. A feed pipe 14 is located on the left side of the reaction vessel body 1 near the top. A second drive motor 15 is fixedly installed at the top of the reaction vessel body 1. A connecting rod 16 is fixedly installed at the output end of the second drive motor 15, extending through the reaction vessel body 1. Multiple first stirring rods 17 arranged in a linear array are fixedly installed on the outer surface of the connecting rod 16. Multiple mounting grooves 18 arranged in a linear array are formed on the first stirring rods 17. A collar 19 is rotatably mounted within each mounting groove 18. Four second stirring rods 20 are fixedly installed on the outer surface of the collar 19, and the four second stirring rods 20 are arranged in a circumferential array on the outer surface of the collar 19.

[0029] Working principle: The raw materials for urea-formaldehyde resin are fed into the reactor body 1 through the feed pipe 14. Then, the operator controls the second drive motor 15 through the controller 10, which drives the connecting rod 16 installed on the output end to rotate. When the connecting rod 16 rotates, it drives the first stirring rod 17 to stir the material in the reactor body 1, thus mixing it. Since the first stirring rod 17 has multiple mounting slots 18, and the mounting slots 18 are rotatably mounted with collars 19, when the first stirring rod rotates, the collars 19 drive the second stirring rod 20 installed on it to rotate as well. This allows the second stirring rod 20 to stir the material in the reactor body 1 in different directions, thereby improving the reaction efficiency of the material in the reactor body 1.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reaction vessel for producing urea-formaldehyde resin, comprising a reaction vessel body (1), characterized in that: A cooling chamber (2) is provided at the bottom of the outer surface of the reactor body (1). An inlet pipe (3) is provided on the left end face of the cooling chamber (2). A drain pipe (4) is provided at the bottom right side of the cooling chamber (2). A discharge pipe (5) is provided at the bottom of the cooling chamber (2). The discharge pipe (5) is connected to the bottom of the reactor body (1). A control valve (6) is provided on the discharge pipe (5). A first drive motor (7) is fixedly installed at the bottom of the discharge pipe (5). The output end of the first drive motor (7) extends into the discharge pipe (5). A auger conveyor (8) is fixedly installed at the output end of the first drive motor (7). A discharge pipe (9) is provided on the right end face of the discharge pipe (5).

2. The reaction vessel for producing urea-formaldehyde resin according to claim 1, characterized in that: A controller (10) is provided on the outer surface of the reactor body (1), and a temperature controller (11) is provided on the outer surface of the reactor body (1). The detection end of the temperature controller (11) is located inside the reactor body (1), and the temperature controller (11) and the controller (10) are electrically connected.

3. The reaction vessel for producing urea-formaldehyde resin according to claim 1, characterized in that: A heating chamber (12) is provided inside the main body (1) of the reactor, and a heater (13) is provided inside the heating chamber (12). The heater (13) and the temperature controller (11) are electrically connected.

4. The reaction vessel for producing urea-formaldehyde resin according to claim 1, characterized in that: A feed pipe (14) is provided on the left side of the reactor body (1) near the top. A second drive motor (15) is fixedly installed at the top of the reactor body (1). A connecting rod (16) is fixedly installed at the output end of the second drive motor (15). The connecting rod (16) extends through the reactor body (1). A plurality of first stirring rods (17) arranged in a linear array are fixedly installed on the outer end surface of the connecting rod (16).

5. The reaction vessel for producing urea-formaldehyde resin according to claim 4, characterized in that: The first stirring rod (17) has multiple mounting slots (18) arranged in a linear array. A collar (19) is rotatably mounted in the mounting slot (18). Four second stirring rods (20) are fixedly mounted on the outer end surface of the collar (19). The four second stirring rods (20) are arranged in a circular array on the outer end surface of the collar (19).

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