Novel reaction kettle for urea resin production

Abstract

The utility model relates to the technical field of urea resin, in particular to a novel urea resin production reaction kettle which comprises a reaction kettle main body, and the top end of the reaction kettle main body is communicated with a feeding pipe; the stirring mechanism capable of uniformly stirring urea, formaldehyde and other raw materials is arranged on the inner wall of the reaction kettle main body; by arranging the stirring mechanism, when urea resin is processed, a motor can drive two rotating rods to rotate in opposite directions through cooperation of a second bevel gear and two first bevel gears; two rotating rods respectively drive a stirring turbine, a first stirring rod and a second stirring rod to rotate in opposite directions to stir and mix urea resin raw materials, so that the urea resin raw materials can be uniformly mixed together, a heating rod can heat the temperature in the reaction kettle, and a heat conducting plate can uniformly conduct heat and uniformly heat urea resin, so that the urea resin raw materials are uniformly heated. Urea resin can be uniformly stirred and mixed, and the quality of the urea resin is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of urea resin, in particular to a novel reaction kettle for producing urea resin. Background Art

[0002] Urea resin, also known as urea formaldehyde resin, is formed by the condensation of urea and formaldehyde under the action of a catalyst (alkaline or acidic catalyst) to form an initial urea-formaldehyde resin, and then forms an insoluble and infusible final thermosetting resin under the action of a curing agent or auxiliary agent. During the production of urea resin, it is necessary to stir and mix urea, formaldehyde and other raw materials in a reactor to improve the quality of urea resin.

[0003] After searching the Chinese patent "A mixing and stirring device for the production and processing of urea resin", the publication number is "CN216654170U". This patent drives the installation shaft to rotate through the output shaft of the forward and reverse motor, and the installation shaft drives two semi-ring stirring blades to rotate. The two semi-ring stirring blades respectively drive two cross-shaped stirring blades. The two cross-shaped stirring blades and the two semi-ring stirring blades mix and stir the materials, which is convenient for better stirring and improves the working efficiency of the mixing and stirring device for the production and processing of urea resin. However, when the device is used to produce urea resin, the mixing effect of urea and raw materials such as formaldehyde is not ideal, and it is not convenient to evenly stir and mix urea and raw materials such as formaldehyde, which reduces the quality of urea resin.

[0004] Therefore, a new type of reactor for producing urea resin is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a new type of reaction kettle for producing urea resin in order to solve the above problems, thereby improving the problem of inconvenience in uniformly stirring and mixing raw materials such as urea and formaldehyde.

[0006] The utility model achieves the above-mentioned purpose through the following technical scheme: a new type of reactor for producing urea resin, comprising a reactor body, the top of which is connected to a feed pipe; a stirring mechanism, which can evenly stir raw materials such as urea and formaldehyde, and is arranged on the inner wall of the reactor body; wherein the stirring mechanism comprises two rotating rods rotatably connected to the inner wall of the reactor body, wherein both ends of one of the rotating rods penetrate both ends of the other rotating rod and extend to the outside of the other rotating rod, and a filter assembly is arranged on one side of the reactor body.

[0007] Preferably, the stirring mechanism also includes two stirring turbines fixedly connected to the outer wall of the other rotating rod, wherein one end of one of the rotating rods is fixedly connected to a first stirring rod, a fixing ring is fixedly connected between the two first stirring rods, the fixing ring is rotatably connected to the other rotating rod, and a second stirring rod is fixedly connected to the bottom end of the first stirring rod, so that urea, formaldehyde and other raw materials can be evenly stirred and mixed to improve the quality of urea resin.

[0008] Preferably, one end of the two rotating rods is fixedly connected to the first bevel gear, one side of the two first bevel gears is meshingly connected to the second bevel gear, and one end of the second bevel gear is fixedly connected to the motor, which is a servo motor and can drive the two rotating rods to rotate in opposite directions. The two rotating rods respectively drive the stirring turbine and the first stirring rod and the second stirring rod to rotate in opposite directions to stir raw materials such as urea and formaldehyde.

[0009] Preferably, the other end of one of the rotating rods is fixedly connected to a spiral rod, which can drive the urea resin to be quickly transported when it is discharged and prevent it from being blocked in the discharge port.

[0010] Preferably, the inner wall of the reactor body is provided with several evenly distributed heating rods, the inner wall of the reactor body is provided with a heat conducting plate, the heating rods are provided on the outer wall of the heat conducting plate, and the urea and formaldehyde and other raw materials are heated when they are stirred to improve the mixing effect of the urea resin, and the inner top wall of the reactor body is provided with a temperature sensor to detect the temperature inside the reactor.

[0011] Preferably, the filter assembly includes two exhaust pipes connected to one side of the reactor body, and the inner wall of one of the exhaust pipes is provided with two filter plates, and the two filter plates are provided with activated carbon adsorbents, which can filter the gases generated during the processing of raw materials such as urea and formaldehyde, thereby reducing the generation of harmful gases.

[0012] Preferably, the inner wall of the other exhaust pipe is rotatably connected to an exhaust fan, which can transport and discharge the gas in the reactor.

[0013] Preferably, one end of the other exhaust pipe is rotatably connected to a threaded barrel, the threaded barrel is threadedly connected to one of the exhaust pipes, and a sealing ring is provided between the two exhaust pipes to facilitate installation and replacement of the activated carbon adsorbent.

[0014] The beneficial effects of the utility model are:

[0015] 1. By setting a stirring mechanism, when processing urea resin, the motor can drive the two rotating rods to rotate in opposite directions through the second bevel gear and the two first bevel gears. The two rotating rods respectively drive the stirring turbine and the first stirring rod and the second stirring rod to rotate in opposite directions to stir and mix the urea resin raw materials so that they can be evenly mixed together. The stirring turbine has a strong cutting force and extrusion force, which is good for dispersing and mixing the raw materials. One end of the first stirring rod and the second stirring rod fits with the inner wall of the reactor to clean the raw materials stuck to the inner wall of the reactor. The spiral rod can transport the urea resin when it is discharged. The heating rod can heat the temperature in the reactor. The heat conducting plate can evenly conduct heat to evenly heat the urea resin. The urea resin can be evenly stirred and mixed, thereby improving the quality of the urea resin.

[0016] 2. By setting up a filtering component, harmful gases generated during the processing of urea resin can be discharged outward through an exhaust pipe. The filter plate in one exhaust pipe cooperates with the activated carbon adsorbent to filter and purify the harmful gases and reduce the harm of the gases. The exhaust fan in the other exhaust pipe can adsorb and exhaust the gases in the reactor to improve the working efficiency of the device. The threaded barrel cooperates with one of the exhaust pipes to replace the activated carbon adsorbent. The sealing ring can prevent gas leakage, filter the harmful gases generated during the processing of urea resin, and improve the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the appearance structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the stirring mechanism structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the local structure of the stirring mechanism of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the filter assembly of the utility model.

[0021] In the figure: 1. Reactor body; 2. Feed pipe; 3. Stirring mechanism; 301. Rotating rod; 302. Stirring turbine; 303. First stirring rod; 304. Fixed ring; 305. Second stirring rod; 306. First bevel gear; 307. Second bevel gear; 308. Motor; 309. Screw rod; 310. Heating rod; 311. Heat conducting plate; 312. Filter assembly; 3121. Exhaust pipe; 3122. Filter plate; 3123. Activated carbon adsorbent; 3124. Exhaust fan; 3125. Threaded barrel; 3126. Sealing ring. DETAILED DESCRIPTION

[0022] 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.

[0023] When implementing: Figure 1-4 As shown, a new reactor for producing urea resin comprises a reactor body 1, the top of which is connected to a feed pipe 2; a stirring mechanism 3, which can evenly stir raw materials such as urea and formaldehyde, is arranged on the inner wall of the reactor body 1; wherein the stirring mechanism 3 comprises two rotating rods 301 rotatably connected to the inner wall of the reactor body 1, wherein both ends of one rotating rod 301 penetrate both ends of the other rotating rod 301 and extend to the outside of the other rotating rod 301, and a filter assembly 312 is arranged on one side of the reactor body 1.

[0024] like Figure 2 and Figure 3 As shown, the stirring mechanism 3 also includes two stirring turbines 302 fixedly connected to the outer wall of another rotating rod 301, one end of one rotating rod 301 is fixedly connected to a first stirring rod 303, a fixing ring 304 is fixedly connected between the two first stirring rods 303, the fixing ring 304 is rotatably connected to the other rotating rod 301, the bottom end of the first stirring rod 303 is fixedly connected to a second stirring rod 305, one end of the two rotating rods 301 are fixedly connected to a first bevel gear 306, one side of the two first bevel gears 306 are meshedly connected to a second bevel gear 307, one end of the second bevel gear 307 is fixedly connected to a motor 308, the other end of one rotating rod 301 is fixedly connected to a spiral rod 309, and the inner wall of the reactor body 1 is provided with a plurality of evenly distributed A heating rod 310 and a heat conducting plate 311 are arranged on the inner wall of the reactor body 1. The heating rod 310 is arranged on the outer wall of the heat conducting plate 311. The motor 308 drives the second bevel gear 307 to mesh with the two first bevel gears 306 to drive the two rotating rods 301 to rotate in opposite directions. One of the rotating rods 301 drives the first stirring rod 303 and the second stirring rod 305 to rotate, and the other rotating rod 301 drives the stirring turbine 302 to rotate in opposite directions to stir the urea resin. When one of the rotating rods 301 rotates, the spiral rod 309 is driven to rotate. The heating rod 310 is started by the controller to operate and heat, and then cooperates with the heat conducting plate 311 to evenly heat the urea resin, so that the urea resin can be evenly stirred and mixed, thereby improving the quality of the urea resin.

[0025] like Figure 4As shown, the filter assembly 312 includes two exhaust pipes 3121 connected to one side of the reactor body 1, the inner wall of one exhaust pipe 3121 is provided with two filter plates 3122, and an activated carbon adsorbent 3123 is provided between the two filter plates 3122. The inner wall of the other exhaust pipe 3121 is rotatably connected with an exhaust fan 3124, and one end of the other exhaust pipe 3121 is rotatably connected with a threaded barrel 3125, which is threadedly connected to one of the exhaust pipes 3121. A sealing ring 3126 is provided between the two exhaust pipes 3121. The exhaust fan 3124 is operated to adsorb and transport harmful gases in the reactor body 1, and the filter plates 3122 cooperate with the activated carbon adsorbent 3123 to filter and purify the harmful gases. The activated carbon adsorbent 3123 can be replaced by rotating the threaded barrel 3125 to be threadedly connected to one of the exhaust pipes 3121, so that harmful gases generated during the processing of urea resin can be filtered, thereby improving the use effect of the device.

[0026] When the utility model is in use, the motor 308 is manually started, and the operation of the motor 308 drives the second bevel gear 307 to mesh with the two first bevel gears 306 so that the two rotating rods 301 respectively drive the stirring turbine 302 and the first stirring rod 303 and the second stirring rod 305 to rotate in opposite directions to stir the urea resin. When one of the rotating rods 301 rotates, the spiral rod 309 is driven to rotate. The heating rod 310 is started by the controller to operate and heat, and then cooperates with the heat conducting plate 311 to uniformly heat the urea resin. The exhaust fan 3124 is started by the controller. The exhaust fan 3124 operates to adsorb harmful gases in the reactor body 1 and transports the gases to one of the exhaust pipes 3121. The filter plate 3122 cooperates with the activated carbon adsorbent 3123 to filter the harmful gases. The threaded barrel 3125 is threadedly connected to one of the exhaust pipes 3121 and opened downward to replace the activated carbon adsorbent 3123. The heating rod 310 converts electrical energy into thermal energy to heat the reactor by utilizing the resistance thermal effect generated when current passes through the heating rod.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A novel reactor for producing urea resin, characterized in that: include: A reactor body (1), wherein the top of the reactor body (1) is connected to a feed pipe (2); A stirring mechanism (3) capable of uniformly stirring urea and formaldehyde, the stirring mechanism (3) being arranged on the inner wall of the reactor body (1); The stirring mechanism (3) comprises two rotating rods (301) rotatably connected to the inner wall of the reactor body (1), wherein both ends of one of the rotating rods (301) penetrate through both ends of the other rotating rod (301) and extend to the outside of the other rotating rod (301), and a filtering assembly (312) is provided on one side of the reactor body (1).

2. A novel reaction kettle for producing urea resin according to claim 1, characterized in that: The stirring mechanism (3) further comprises two stirring turbines (302) fixedly connected to the outer wall of the other rotating rod (301), wherein one end of one of the rotating rods (301) is fixedly connected to a first stirring rod (303), a fixing ring (304) is fixedly connected between the two first stirring rods (303), the fixing ring (304) is rotatably connected to the other rotating rod (301), and the bottom end of the first stirring rod (303) is fixedly connected to a second stirring rod (305).

3. The novel reaction kettle for producing urea resin according to claim 1, characterized in that: One end of the two rotating rods (301) is fixedly connected to a first bevel gear (306), one side of the two first bevel gears (306) is meshingly connected to a second bevel gear (307), and one end of the second bevel gear (307) is fixedly connected to a motor (308).

4. The novel reaction kettle for producing urea resin according to claim 1, characterized in that: The other end of one of the rotating rods (301) is fixedly connected to a spiral rod (309).

5. The novel reaction kettle for producing urea resin according to claim 1, characterized in that: The inner wall of the reactor body (1) is provided with a plurality of evenly distributed heating rods (310), the inner wall of the reactor body (1) is provided with a heat conducting plate (311), and the heating rods (310) are arranged on the outer wall of the heat conducting plate (311).

6. The novel reaction kettle for producing urea resin according to claim 1, characterized in that: The filter assembly (312) comprises two exhaust pipes (3121) connected to one side of the reactor body (1), wherein the inner wall of one of the exhaust pipes (3121) is provided with two filter plates (3122), and an activated carbon adsorbent (3123) is provided between the two filter plates (3122).

7. A novel reaction kettle for producing urea resin according to claim 6, characterized in that: The inner wall of the other exhaust pipe (3121) is rotatably connected to an exhaust fan (3124).

8. The novel reaction kettle for producing urea resin according to claim 6, characterized in that: One end of the other exhaust pipe (3121) is rotatably connected to a threaded barrel (3125), the threaded barrel (3125) is threadedly connected to one of the exhaust pipes (3121), and a sealing ring (3126) is provided between the two exhaust pipes (3121).

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