Production equipment for continuously producing urea formaldehyde molding resin and production process thereof

Abstract

The invention relates to production equipment for continuously producing urea-formaldehyde mold resin and a production process thereof, and relates to the technical field of urea-formaldehyde mold resin production equipment.The production equipment comprises a reaction kettle and a base, the base is connected to the bottom end of the outer wall of the reaction kettle, and a conveying pump is installed at the top of the base. Raw materials enter the reaction kettle from multiple positions through the mixing mechanism, the raw materials are prevented from entering the reaction kettle in a concentrated mode, the raw materials in the reaction kettle are rapidly mixed through the multiple mixing vortexes, then uniform mixing of the raw materials is completed within a short time, the mixing period is shortened, and the production efficiency is improved; raw material residues are prevented from influencing the mixing quality through the scraping mechanism, and the mixing mechanism and the scraping mechanism can be simultaneously driven to work together only by starting the double-shaft motor; and a relative rotating mechanism is formed in the storage tank through the auxiliary mechanism, so that the raw materials in the storage tank flow, and the phenomenon that the production of the urea-formaldehyde molding resin is affected due to blockage when the raw materials are guided out is prevented.

Description

Technical Field

[0001] The present application relates to the technical field of urea-formaldehyde mold resin production equipment, and in particular to a production equipment and a production process for continuously producing urea-formaldehyde mold resin. Background Art

[0002] Urea-formaldehyde molding resin, also known as urea-formaldehyde resin, is a polymer obtained by the reaction of urea and formaldehyde. It is a thermosetting resin. Urea-formaldehyde molding plastic is a plastic product obtained by molding urea-formaldehyde molding powder by compression or injection. The production equipment of urea-formaldehyde molding resin mainly includes reactor, filtering equipment, dehydration equipment, crushing equipment, mixing equipment and molding equipment, and the reactor is the core equipment for the production of urea-formaldehyde resin, which is mainly used for the condensation reaction of urea and formaldehyde. It is usually equipped with a stirring device, a heating device and a temperature control system to ensure the accuracy of the reaction conditions.

[0003] According to announcement number CN1171921C, a method and equipment for producing urea-formaldehyde resin with low free formaldehyde content is disclosed. The patent comprises the following steps: producing urea-formaldehyde resin with high free formaldehyde content by conventional method, and then sequentially adding direct formaldehyde removal agent ammonia for direct formaldehyde removal, adding latent formaldehyde removal agent urea or melamine for latent formaldehyde removal, and adding pH adjusting agent to adjust pH value. The urea-formaldehyde resin produced by this method has free formaldehyde content reduced to below 0.1%, and has the advantages of high strength, storage stability and good water resistance. The equipment for realizing this production method can be in-kettle production equipment or out-kettle production equipment. The in-kettle production equipment comprises a reactor with a gas distributor installed at the bottom, and the out-kettle production equipment comprises a reactor unit and a special formaldehyde removal reaction tank with a gas distributor installed at the bottom. The structure is simple and easy to operate.

[0004] However, during the use of the above-mentioned patent, the solid raw materials are concentrated into the reactor through the feed pipe, and are not dispersed into the interior of the reactor, which causes the raw materials entering to be concentrated in a certain area in the reactor at the beginning, and are only mixed by the rotation of a single stirring rod, which leads to a longer mixing cycle between the solid raw materials and the liquid raw materials, and affects the mixing quality of the raw materials, thereby affecting the production of urea-formaldehyde molding resin. Summary of the invention

[0005] The purpose of the present application is to provide a production device and a production process for continuously producing urea-formaldehyde molding resin.

[0006] The present application provides a production equipment for continuously producing urea-formaldehyde molding resin, which adopts the following technical scheme: A production equipment for continuously producing urea-formaldehyde mold resin, comprising a reactor and a base, wherein the bottom end of the outer wall of the reactor is connected to the base, and a delivery pump is installed on the top of the base, and a condenser is connected to the output end of the delivery pump, the condenser is connected to a vacuum storage tank through a delivery pipeline, and the outer wall of the vacuum storage tank is connected to the vacuum pump through a support platform, the top of the reactor is connected to a material distribution box, and the top of the outer wall of the material distribution box is connected to the storage tank, a mixing mechanism is arranged inside the reactor, and the mixing mechanism comprises a double-axis motor, a rotating column, a stirring seat, a material distribution plate, a support Cylinder, ball, slide rail, support seat, push rod, limit ring, feed chamber, first bevel gear, second bevel gear, stirring rod and protective cylinder, a double-axis motor is installed in the middle of the top of the reactor, and the bottom output end of the double-axis motor is connected with a rotating column, and the middle of the outer wall of the rotating column is sleeved with a stirring seat, the top output end of the double-axis motor is connected with a distributing plate, a feed chamber is opened on the outside of the top of the reactor, a first bevel gear is welded on the bottom end of the rotating column, and the outer wall of the first bevel gear is meshed with the second bevel gear, and the inside of the second bevel gear is connected with a stirring rod.

[0007] Optionally, a protective cylinder is connected to one side of the outer wall of the stirring rod through a movable hole, and the other side of the outer wall of the stirring rod is connected to the inner wall of the reactor through a bearing seat, and the stirring rod is distributed in a triangular shape, the bottom end of the outer wall of the protective cylinder is connected to the inner wall of the reactor, and the bottom of the reactor is connected to a delivery pump through a discharge pipe.

[0008] Optionally, a support tube is welded to the outer side of the bottom of the material distribution plate, and balls are rollingly connected to the inside of the bottom of the support tube, and a slide rail is rollingly connected to the outer wall of the ball, the balls are distributed in a triangular shape, and the bottom end of the outer wall of the slide rail is welded to the top of the reactor.

[0009] By adopting the above technical solution, the dual-axis motor is first started to drive the rotating column and the distribution plate to rotate together, and then the rotation of the rotating column will drive the stirring seat and the first bevel gear to rotate together, and then the rotation of the stirring seat will form a vertical mixing vortex inside the reactor, and then the rotation of the first bevel gear will drive the second bevel gear to rotate, and the rotation of the second bevel gear will drive the stirring rod to rotate, and then three horizontal mixing vortices are formed at the bottom of the reactor. At this time, the raw materials in the reactor are quickly mixed through the mutual cooperation of the vertical mixing vortex and the horizontal mixing vortex, so that the raw materials are no longer mixed by a single mixing vortex, which shortens the mixing time, and can make the various components in the raw materials evenly mixed, reducing the particle size and density differences between the particles.

[0010] Optionally, a support seat is welded to one side of the middle of the support tube, and a push rod is welded to the bottom end of the outer wall of the support seat, and the bottom end of the outer wall of the push rod is in contact with the top surface of the reactor, and a limiting ring is welded to the bottom end of the inner wall of the distribution box.

[0011] Optionally, the slide rail cross-section is designed to be a "C"-shaped structure, the push rod is designed to be an "I"-shaped structure, the feed chamber is distributed at equal angles, the stirring seat is designed to be a "X"-shaped structure, the distribution plate is conical, and a feed hole is opened in the middle of the top of the distribution box.

[0012] By adopting the above technical scheme, when the raw materials in the storage tank enter the inside of the distribution box, they will come into contact with the rotating distribution plate, and then fly around under the action of centrifugal force when the distribution plate rotates, and then the raw materials will come into contact with the inner wall of the distribution box and enter the reactor through the feed cavity, and when the distribution plate rotates, it will drive the push rod to rotate together through the support tube and the support seat, and then push the raw materials remaining on the top of the reactor into the reactor through the feed cavity, and then the raw materials will enter the reactor from multiple places, preventing the raw materials from entering the reactor in a concentrated manner and causing too much or too little raw materials in some parts, thereby assisting the mixing of the raw materials in the reactor, so that it can complete the uniform mixing of the raw materials in a shorter time, thereby shortening the mixing cycle through the mixing mechanism and improving production efficiency.

[0013] Optionally, a scraper mechanism is provided on the outer wall of the rotating column, and the scraper mechanism includes a transmission frame, a guide rod, a guide plate, a scraper plate and a spring. A transmission frame is provided on the outer side of the stirring seat, and the inner wall of the transmission frame is connected to the rotating column. The transmission frame is slidably connected to the guide rod inside, and the transmission frame is designed in a "mouth" shape.

[0014] Optionally, a guide plate is welded to one side of the outer wall of the guide rod, and a scraper plate is connected to the other side of the outer wall of the guide rod, and a spring is sleeved in the middle of the outer wall of the guide rod. An elastic telescopic mechanism is formed between the guide rod, the guide plate, the scraper plate and the spring, and the outer wall of the scraper plate fits against the inner wall of the reactor.

[0015] By adopting the above technical solution, when the rotating column rotates to perform mixing work, it will drive the transmission frame to rotate together, and the rotation of the transmission frame will drive the guide rod to rotate together. At this time, the elastic force generated by the spring reset makes the outer wall of the scraper plate fit with the inner wall of the reactor. Then, when the rotating column rotates to perform mixing work, the scraper plate will rub against the inner wall of the reactor, and then scrape off the raw materials remaining on the inner wall of the reactor, so that it enters the mixing vortex to continue mixing, thereby preventing the residual raw materials from affecting the mixing quality through the scraping mechanism, and only needs to start the dual-axis motor to drive the mixing mechanism and the scraping mechanism to work together at the same time.

[0016] Optionally, an auxiliary mechanism is provided on the top of the storage tank, and the auxiliary mechanism includes a protective box, a drive motor, a first gear, a second gear, a first spiral dragon and a second spiral dragon. A protective box is docked at the top of the outer wall of the storage tank, and a drive motor is installed on one side of the top of the protective box.

[0017] Optionally, the outer wall of the first gear is meshed with the second gear, a first spiral dragon is welded inside the first gear, a second spiral dragon is welded inside the second gear, and the second spiral dragon is parallel to the first spiral dragon, a storage cavity is opened inside the protective box, and the first gear and the second gear extend therein, a discharge hole is opened in the middle of the bottom end of the storage tank, and a raw material pump is arranged in the discharge hole.

[0018] By adopting the above technical solution, by starting the driving motor on the top of the protective box, the driving motor will drive the first gear to rotate, and then the first gear will rotate forward to drive the second gear to rotate reversely. After that, the first gear will rotate forward to drive the first spiral dragon to rotate forward, and the second gear will rotate reversely to drive the second spiral dragon to rotate reversely, thereby forming a relative rotation mechanism in the storage tank. At this time, the raw materials in the storage tank can flow through the rotation of the first spiral dragon and the second spiral dragon, thereby preventing the raw materials in the storage tank from accumulating and being fixed, causing blockage when the raw materials are discharged, affecting the production of urea-formaldehyde molding resin, thereby preventing the raw materials in the storage tank from being blocked.

[0019] A production method for continuously producing urea-formaldehyde molding resin production equipment comprises the following steps: S1. Raw material preparation: prepare raw materials such as urea and formaldehyde; S2, raw material reaction: the raw materials in the storage tank are uniformly introduced into the reactor through the distribution box, and then the reactor is started to cooperate with the mixing mechanism. Under a certain temperature and pressure, urea and formaldehyde undergo a polycondensation reaction to generate urea-formaldehyde resin; S3, product cooling: start the delivery pump to introduce the urea-formaldehyde resin in the reactor into the condenser for cooling; S4. Product storage: When the urea-formaldehyde resin is cooled to the specified temperature, it is introduced into a vacuum storage tank for storage, and then it is discharged through a vacuum pump. Therefore, the connected production can be completed by simply lifting it up and adding raw materials.

[0020] In summary, the present application includes at least one of the following beneficial technical effects: 1. The mixing mechanism allows the raw materials to enter the reactor from multiple locations, preventing the raw materials from entering the reactor in a concentrated manner. The raw materials in the reactor are quickly mixed by multiple mixing vortices, thereby completing uniform mixing of the raw materials in a shorter time, thereby shortening the mixing cycle and improving production efficiency. 2. The scraping mechanism can prevent the residual raw materials from affecting the mixing quality, and the mixing mechanism and the scraping mechanism can be driven to work together by simply starting the dual-axis motor; 3. A relative rotation mechanism is formed in the storage tank through an auxiliary mechanism, so that the raw materials in the storage tank can flow, thereby preventing blockage during the discharge of the raw materials and affecting the production of urea-formaldehyde molding resin. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional cutaway structure of the reactor of the present invention; Figure 3 It is a schematic diagram of the three-dimensional cutaway structure of the material distribution box of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the stirring base of the present invention; Figure 5 It is a schematic diagram of the three-dimensional cutaway structure of the storage tank of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the reactor of the present invention from top view; Figure 7 It is a schematic diagram of the three-dimensional cutaway structure of the protective tube of the present invention; Figure 8 It is a schematic diagram of the three-dimensional cutaway structure of the slide rail of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional cutaway structure of the transmission frame of the present invention.

[0022] In the figure: 1, reactor; 2, base; 3, delivery pump; 4, condenser; 5, vacuum storage tank; 6, vacuum pump; 7, material distribution box; 8, storage tank; 9, mixing mechanism; 901, double-axis motor; 902, rotating column; 903, stirring seat; 904, material distribution plate; 905, support cylinder; 906, ball bearing; 907, slide rail; 908, support seat; 909, push rod; 910, limit ring; 911, feed chamber; 912, first cone Gear; 913, second bevel gear; 914, stirring rod; 915, protective tube; 10, scraper mechanism; 1001, transmission frame; 1002, guide rod; 1003, guide plate; 1004, scraper plate; 1005, spring; 11, auxiliary mechanism; 1101, protective box; 1102, driving motor; 1103, first gear; 1104, second gear; 1105, first spiral dragon; 1106, second spiral dragon. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1 - Attachment Fig. 9 , further details of this application are given.

[0024] Embodiment: A production equipment for continuously producing urea-formaldehyde molding resin, comprising a reactor 1 and a base 2, wherein the bottom end of the outer wall of the reactor 1 is connected to the base 2, and a delivery pump 3 is installed on the top of the base 2, and a condenser 4 is connected to the output end of the delivery pump 3, the condenser 4 is connected to a vacuum storage tank 5 through a delivery pipeline, and the outer wall of the vacuum storage tank 5 is connected to a vacuum pump 6 through a support platform, a material distribution box 7 is connected to the top of the reactor 1, and a storage tank 8 is docked at the top of the outer wall of the material distribution box 7, a mixing mechanism 9 is arranged inside the reactor 1, and the mixing mechanism 9 includes a dual-axis motor 901, a rotating column 902, a stirring seat 903, a material distribution plate 904, a support The reactor 1 is provided with a cylinder 905, a ball bearing 906, a slide rail 907, a support seat 908, a push rod 909, a limiting ring 910, a feed chamber 911, a first bevel gear 912, a second bevel gear 913, a stirring rod 914 and a protective cylinder 915. A double-axis motor 901 is installed in the middle of the top of the reactor 1, and a rotating column 902 is connected to the output end of the bottom of the double-axis motor 901, and a stirring seat 903 is sleeved in the middle of the outer wall of the rotating column 902, and a material distribution plate 904 is connected to the output end of the top of the double-axis motor 901. A feed chamber 911 is opened on the outside of the top of the reactor 1, and a first bevel gear 912 is welded to the bottom end of the rotating column 902, and the first bevel gear 913 is welded to the bottom end of the rotating column 902. The outer wall of the gear 912 is meshed with a second bevel gear 913, and a stirring rod 914 is connected to the inside of the second bevel gear 913; a protective cylinder 915 is connected to one side of the outer wall of the stirring rod 914 through a movable hole, and the other side of the outer wall of the stirring rod 914 is connected to the inner wall of the reactor 1 through a bearing seat, and the stirring rod 914 is distributed in a triangular shape, the bottom end of the outer wall of the protective cylinder 915 is connected to the inner wall of the reactor 1, and the bottom of the reactor 1 is connected to the delivery pump 3 through a discharge pipe; first start the dual-axis motor 901 to drive the rotating column 902 and the distributing plate 904 to rotate together, and then the rotation of the rotating column 902 will drive the stirring seat 903 and The first bevel gear 912 rotates together, and then the stirring seat 903 rotates to form a vertical mixing vortex inside the reactor 1. Thereafter, the rotation of the first bevel gear 912 drives the second bevel gear 913 to rotate, and the rotation of the second bevel gear 913 drives the stirring rod 914 to rotate, and then three horizontal mixing vortices are formed at the bottom of the reactor 1. At this time, the raw materials in the reactor 1 are quickly mixed through the cooperation of the vertical mixing vortex and the horizontal mixing vortex, so that the raw materials are no longer mixed by a single mixing vortex, which shortens the mixing time, and can make the various components in the raw materials evenly mixed, reducing the particle size and density differences between the particles.

[0025] A support cylinder 905 is welded to the outer side of the bottom end of the distribution plate 904, and a ball 906 is rollingly connected inside the bottom end of the support cylinder 905, and a slide rail 907 is rollingly connected to the outer wall of the ball 906, and the ball 906 is distributed in a triangular shape, and the bottom end of the outer wall of the slide rail 907 is welded to the top of the reactor 1; a support seat 908 is welded to one side of the middle part of the support cylinder 905, and a push rod 909 is welded to the bottom end of the outer wall of the support seat 908, and the bottom end of the outer wall of the push rod 909 is in contact with the top surface of the reactor 1, and a limiting ring 910 is welded to the bottom end of the inner wall of the distribution box 7; the cross-section of the slide rail 907 is designed in a "C"-shaped structure, the push rod 909 is designed in an "I"-shaped structure, the feed chamber 911 is distributed at equal angles, the stirring seat 903 is designed in a "X"-shaped structure, the distribution plate 904 is conical, and a feed hole is provided in the middle of the top of the distribution box 7; when After the raw materials in the storage tank 8 enter the inside of the distribution box 7, they will come into contact with the rotating distribution plate 904, and then fly around under the action of centrifugal force when the distribution plate 904 rotates. Then, the raw materials come into contact with the inner wall of the distribution box 7 and enter the reactor 1 through the feed cavity 911. When the distribution plate 904 rotates, it will drive the push rod 909 to rotate together through the support tube 905 and the support seat 908, and then push the raw materials remaining on the top of the reactor 1 into the reactor 1 through the feed cavity 911, and then the raw materials enter the reactor 1 from multiple places, preventing the raw materials from entering the reactor 1 in a concentrated manner and causing too much or too little raw materials in some parts, thereby assisting the mixing of the raw materials in the reactor 1, so that it can complete the uniform mixing of the raw materials in a shorter time, thereby shortening the mixing cycle through the mixing mechanism 9 and improving production efficiency.

[0026] The outer wall of the rotating column 902 is provided with a scraper mechanism 10, and the scraper mechanism 10 includes a transmission frame 1001, a guide rod 1002, a guide plate 1003, a scraper plate 1004 and a spring 1005. The transmission frame 1001 is provided on the outer side of the stirring seat 903, and the inner wall of the transmission frame 1001 is connected to the rotating column 902. The guide rod 1002 is slidably connected inside the transmission frame 1001, and the transmission frame 1001 is designed in a "mouth" shape; a guide plate 1003 is welded on one side of the outer wall of the guide rod 1002, and a scraper plate 1004 is connected to the other side of the outer wall of the guide rod 1002, and a spring 1005 is sleeved in the middle of the outer wall of the guide rod 1002, and an elastic extension is formed between the guide rod 1002, the guide plate 1003, the scraper plate 1004 and the spring 1005. The outer wall of the scraper plate 1004 fits with the inner wall of the reactor 1 through the contraction mechanism; when the rotating column 902 rotates to perform mixing work, it will drive the transmission frame 1001 to rotate together, and the rotation of the transmission frame 1001 will drive the guide rod 1002 to rotate together. At this time, the elastic force generated by the reset of the spring 1005 makes the outer wall of the scraper plate 1004 fit with the inner wall of the reactor 1. Then, when the rotating column 902 rotates to perform mixing work, the scraper plate 1004 will rub against the inner wall of the reactor 1, and then scrape off the residual raw materials on the inner wall of the reactor 1, so that it enters the mixing vortex to continue mixing, thereby preventing the residual raw materials from affecting the mixing quality through the scraper mechanism 10, and only needs to start the dual-axis motor 901 to drive the mixing mechanism 9 and the scraper mechanism 10 to work together at the same time.

[0027] An auxiliary mechanism 11 is provided on the top of the storage tank 8, and the auxiliary mechanism 11 includes a protective box 1101, a driving motor 1102, a first gear 1103, a second gear 1104, a first spiral dragon 1105 and a second spiral dragon 1106. The protective box 1101 is connected to the top of the outer wall of the storage tank 8, and the driving motor 1102 is installed on one side of the top of the protective box 1101, and the first gear 1103 is connected to the output end of the driving motor 1102; the outer wall of the first gear 1103 is meshed with the second gear 1104, the first spiral dragon 1105 is welded inside the first gear 1103, the second spiral dragon 1106 is welded inside the second gear 1104, and the second spiral dragon 1106 is parallel to the first spiral dragon 1105, and a storage cavity is provided inside the protective box 1101, and the first gear 1103 and the second gear 1104 are connected to each other. A discharge hole is provided in the middle of the bottom end of the storage tank 8, and a raw material pump is arranged in the discharge hole; the driving motor 1102 on the top of the protective box 1101 is started, and the starting of the driving motor 1102 will drive the first gear 1103 to rotate, and then the first gear 1103 rotates forward to drive the second gear 1104 to reverse, and then the first gear 1103 rotates forward to drive the first spiral dragon 1105 to rotate forward, and the second gear 1104 reverses to drive the second spiral dragon 1106 to reverse, thereby forming a relative rotation mechanism in the storage tank 8, and at this time, the raw materials in the storage tank 8 are allowed to flow through the rotation of the first spiral dragon 1105 and the second spiral dragon 1106, so as to prevent the raw materials in the storage tank 8 from being accumulated and fixed, resulting in blockage when the raw materials are discharged, affecting the production of urea-formaldehyde molding resin, thereby preventing the raw materials in the storage tank 8 from being blocked through the auxiliary mechanism 11.

[0028] A production method for continuously producing urea-formaldehyde molding resin production equipment comprises the following steps: S1. Raw material preparation: prepare raw materials such as urea and formaldehyde; measure formaldehyde and urea separately for standby use; in addition, an alkaline catalyst such as sodium hydroxide is required to adjust the pH value of the reaction system; S2, raw material reaction: the raw materials in the storage tank 8 are uniformly introduced into the reactor 1 through the distribution box 7, and then the reactor 1 is started to cooperate with the mixing mechanism 9. Under a certain temperature and pressure, urea and formaldehyde undergo a polycondensation reaction to generate urea-formaldehyde resin. When formaldehyde is added to the reactor 1, an appropriate amount of water needs to be added to dilute it, and then urea is gradually added as a reactant, and an appropriate amount of alkali solution is added as a catalyst. The temperature in the reactor 1 should be maintained between 50 and 60 degrees Celsius. This step requires strict control of temperature and reaction time to ensure product quality; S3, product cooling: start the delivery pump 3 to introduce the urea-formaldehyde resin in the reactor 1 into the condenser 4 for cooling; S4. Product storage: When the urea-formaldehyde resin is cooled to a specified temperature, it is introduced into a vacuum storage tank 5 for storage, and then discharged through a vacuum pump 6. Thus, the connection production can be completed by simply lifting up and adding raw materials, and a curing agent can be added for curing. The cured urea-formaldehyde resin product has excellent mechanical properties and chemical resistance. At the same time, wastewater and waste gas need to be treated to protect the environment.

[0029] The implementation principle of the embodiment of the present application is as follows: first start the dual-axis motor 901. Since the top output end of the dual-axis motor 901 is connected to the material distribution plate 904, and the bottom output end is connected to the rotating column 902, the dual-axis motor 901 starts to drive the rotating column 902 and the material distribution plate 904 to rotate together, and since the middle part of the rotating column 902 is connected to the stirring seat 903, and the bottom is connected to the first bevel gear 912, the rotation of the rotating column 902 will drive the stirring seat 903 and the first bevel gear 912 to rotate together, and then the rotation of the stirring seat 903 will form a vertical mixing vortex inside the reactor 1, and because the first bevel gear 912 The first bevel gear 912 is meshed with the second bevel gear 913. The rotation of the first bevel gear 912 will drive the second bevel gear 913 in the protective tube 915 to rotate. Then the rotation of the second bevel gear 913 drives the stirring rod 914 to rotate, and then three horizontal mixing vortices are formed at the bottom of the reactor 1. At this time, the raw materials in the reactor 1 are quickly mixed through the cooperation of the vertical mixing vortex and the horizontal mixing vortex, so that the raw materials are no longer mixed by a single mixing vortex, the mixing time is shortened, and the various components in the raw materials can be evenly mixed, reducing the particle size and density differences between the particles; because the distribution plate 904 is located below the storage tank 8 In the middle part, when the raw materials in the storage tank 8 enter the inside of the distribution box 7, they will come into contact with the rotating distribution plate 904, and then fly around under the action of centrifugal force when the distribution plate 904 rotates. Then, the raw materials come into contact with the inner wall of the distribution box 7 and enter the inside of the reactor 1 through the feeding chamber 911. Because the bottom end of the distribution plate 904 is connected to the support cylinder 905, the ball 906 at the bottom end of the support cylinder 905 rolls along the inner wall of the slide rail 907, thereby guiding the rotation of the distribution plate 904 to make it rotate smoothly. And because the support cylinder 905 is connected to the push rod 909 through the support seat 908, the support cylinder When 905 rotates, it drives the push rod 909 to rotate together, and then pushes the raw materials remaining on the top of the reactor 1 into the reactor 1 through the feeding chamber 911, and at this time, the rotation of the push rod 909 is limited by the limiting ring 910 to prevent the push rod 909 from tilting away from the side of the support tube 905, so that the raw materials enter the reactor 1 from multiple places, and the raw materials are prevented from entering the reactor 1 in a concentrated manner, resulting in too much or too little raw materials in some parts, thereby assisting the mixing of the raw materials in the reactor 1, so that the raw materials can be evenly mixed in a shorter time, and then the mixing cycle is shortened by the mixing mechanism 9 to improve the production efficiency;Because the rotating column 902 is connected to the transmission frame 1001, when the rotating column 902 rotates to perform mixing, the transmission frame 1001 will be driven to rotate together. Moreover, because the transmission frame 1001 is connected to the scraper plate 1004 through the guide rod 1002, when the transmission frame 1001 rotates, the scraper plate 1004 will be driven to rotate together. Moreover, because the middle part of the outer wall of the guide rod 1002 is sleeved with a spring 1005, at this time, the elastic force generated by the reset of the spring 1005 makes the outer wall of the scraper plate 1004 fit the inner wall of the reactor 1. , and because the guide rod 1002 is connected to the guide plate 1003, the three groups of guide rods 1002 will move together, so that the outer wall of the scraper plate 1004 is closely attached to the inner wall of the reactor 1. Then, when the rotating column 902 rotates to perform mixing, the scraper plate 1004 will rub against the inner wall of the reactor 1, thereby scraping off the residual raw materials on the inner wall of the reactor 1, so that it enters the mixing vortex to continue mixing, and then the scraper mechanism 10 is used to prevent the residual raw materials from affecting the mixing quality, and only the double shaft is started. The motor 901 can drive the mixing mechanism 9 and the scraping mechanism 10 to work together at the same time; start the driving motor 1102 on the top of the protection box 1101. Since the output end of the driving motor 1102 is connected to the first gear 1103, the driving motor 1102 starts to drive the first gear 1103 to rotate, and since the first gear 1103 and the second gear 1104 are meshed, the first gear 1103 rotates forward and drives the second gear 1104 to rotate reversely. Then, the first gear 1103 rotates forward and drives the first spiral dragon 1105 to rotate forward, and the second gear 1104 rotates reversely and drives the second spiral dragon 1106 to rotate reversely, thereby forming a relative rotation mechanism in the storage tank 8. At this time, the rotation of the first spiral dragon 1105 and the second spiral dragon 1106 allows the raw materials in the storage tank 8 to flow, preventing the raw materials in the storage tank 8 from being piled up and fixed, resulting in blockage when the raw materials are exported, affecting the production of urea-formaldehyde mold resin, thereby preventing the raw materials in the storage tank 8 from being blocked by the auxiliary mechanism 11. ;

[0030] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A production device for continuously producing urea-formaldehyde molding resin, comprising a reaction kettle (1) and a base (2), characterized in that: The bottom end of the outer wall of the reactor (1) is connected to a base (2), and a delivery pump (3) is installed on the top of the base (2), and the output end of the delivery pump (3) is connected to a condenser (4), the condenser (4) is connected to a vacuum storage tank (5) through a delivery pipeline, and the outer wall of the vacuum storage tank (5) is connected to a vacuum pump (6) through a support platform, the top end of the reactor (1) is connected to a material distribution box (7), and the top end of the outer wall of the material distribution box (7) is connected to a material storage tank (8), and a mixing mechanism (9) is arranged inside the reactor (1), and the mixing mechanism (9) comprises a double-axis motor (901), a rotating column (902), a stirring seat (903), a material distribution plate (904), a support cylinder (905), a ball (906), a slide rail (907), a support seat (908), a push rod (909), a limit ring ( 910), a feeding chamber (911), a first bevel gear (912), a second bevel gear (913), a stirring rod (914) and a protective cylinder (915); a double-shaft motor (901) is installed in the middle of the top of the reaction kettle (1); a rotating column (902) is connected to the bottom output end of the double-shaft motor (901); a stirring seat (903) is sleeved on the middle of the outer wall of the rotating column (902); a material distribution plate (904) is connected to the top output end of the double-shaft motor (901); a feeding chamber (911) is opened on the outside of the top of the reaction kettle (1); a first bevel gear (912) is welded to the bottom end of the rotating column (902); a second bevel gear (913) is meshedly connected to the outer wall of the first bevel gear (912); and a stirring rod (914) is connected to the inside of the second bevel gear (913).

2. The production equipment for continuously producing urea-formaldehyde molding resin according to claim 1, characterized in that: One side of the outer wall of the stirring rod (914) is connected to a protective cylinder (915) via a movable hole, and the other side of the outer wall of the stirring rod (914) is connected to the inner wall of the reaction kettle (1) via a bearing seat, and the stirring rod (914) is distributed in a triangular shape, the bottom end of the outer wall of the protective cylinder (915) is connected to the inner wall of the reaction kettle (1), and the bottom of the reaction kettle (1) is connected to a delivery pump (3) via a discharge pipe.

3. The production equipment for continuously producing urea-formaldehyde molding resin according to claim 2, characterized in that: A support tube (905) is welded to the outside of the bottom end of the material distribution plate (904), and a ball (906) is rollingly connected to the inside of the bottom end of the support tube (905), and a slide rail (907) is rollingly connected to the outer wall of the ball (906), the ball (906) is distributed in a triangular shape, and the bottom end of the outer wall of the slide rail (907) is welded to the top of the reaction kettle (1).

4. The production equipment for continuously producing urea-formaldehyde molding resin according to claim 3, characterized in that: A support seat (908) is welded to one side of the middle of the support cylinder (905), and a push rod (909) is welded to the bottom end of the outer wall of the support seat (908), and the bottom end of the outer wall of the push rod (909) is in contact with the top surface of the reaction kettle (1), and a limiting ring (910) is welded to the bottom end of the inner wall of the material distribution box (7).

5. The production equipment for continuously producing urea-formaldehyde molding resin according to claim 4, characterized in that: The cross section of the slide rail (907) is designed to be in a "C"-shaped structure, the push rod (909) is designed to be in an "I"-shaped structure, the feed chambers (911) are distributed at equal angles, the stirring seat (903) is designed to be in a "X"-shaped structure, the distribution plate (904) is conical, and a feed hole is provided in the middle of the top of the distribution box (7).

6. The production equipment for continuously producing urea-formaldehyde molding resin according to claim 1, characterized in that: The outer wall of the rotating column (902) is provided with a scraping mechanism (10), and the scraping mechanism (10) comprises a transmission frame (1001), a guide rod (1002), a guide plate (1003), a scraping plate (1004) and a spring (1005); the outer side of the stirring seat (903) is provided with a transmission frame (1001), and the inner wall of the transmission frame (1001) is connected to the rotating column (902); the inner part of the transmission frame (1001) is slidably connected to the guide rod (1002), and the transmission frame (1001) is designed in a "mouth"-shaped structure.

7. The production equipment for continuously producing urea-formaldehyde molding resin according to claim 6, characterized in that: A guide plate (1003) is welded to one side of the outer wall of the guide rod (1002), and a scraper plate (1004) is connected to the other side of the outer wall of the guide rod (1002), and a spring (1005) is sleeved in the middle of the outer wall of the guide rod (1002). An elastic telescopic mechanism is formed between the guide rod (1002), the guide plate (1003), the scraper plate (1004) and the spring (1005), and the outer wall of the scraper plate (1004) is in contact with the inner wall of the reaction kettle (1).

8. The production equipment for continuously producing urea-formaldehyde molding resin according to claim 1, characterized in that: An auxiliary mechanism (11) is arranged on the top of the storage tank (8), and the auxiliary mechanism (11) comprises a protection box (1101), a drive motor (1102), a first gear (1103), a second gear (1104), a first spiral dragon (1105) and a second spiral dragon (1106); the protection box (1101) is butted against the top of the outer wall of the storage tank (8), and the drive motor (1102) is installed on one side of the top of the protection box (1101), and the output end of the drive motor (1102) is butted against the first gear (1103).

9. The production equipment for continuously producing urea-formaldehyde molding resin according to claim 8, characterized in that: The outer wall of the first gear (1103) is meshedly connected with the second gear (1104), the first gear (1103) is internally welded with a first spiral dragon (1105), the second gear (1104) is internally welded with a second spiral dragon (1106), and the second spiral dragon (1106) and the first spiral dragon (1105) are parallel to each other, a storage cavity is provided inside the protective box (1101), and the first gear (1103) and the second gear (1104) extend therein, and a discharge hole is provided in the middle of the bottom end of the storage tank (8), and a raw material pump is arranged in the discharge hole.

10. A method for continuously producing urea-formaldehyde molding resin, using the production equipment for continuously producing urea-formaldehyde molding resin according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Raw material preparation: prepare raw materials such as urea and formaldehyde; S2, raw material reaction: the raw materials in the storage tank (8) are uniformly introduced into the interior of the reactor (1) through the distribution box (7), and then the reactor (1) is started to cooperate with the mixing mechanism (9), and at a certain temperature and pressure, urea and formaldehyde undergo a polycondensation reaction to generate urea-formaldehyde resin; S3, product cooling: starting the delivery pump (3) to introduce the urea-formaldehyde resin in the reaction kettle (1) into the condenser (4) for cooling; S4. Product storage: When the urea-formaldehyde resin is cooled to a specified temperature, it is introduced into a vacuum storage tank (5) for storage, and then discharged through a vacuum pump (6). Thus, the connected production can be completed by simply lifting and adding raw materials.

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