Sulfamic acid reaction kettle with quantitative feeding structure

Abstract

The invention discloses a sulfamic acid reaction kettle with a quantitative feeding structure, and belongs to the technical field of sulfamic acid production equipment.The sulfamic acid reaction kettle comprises a kettle body assembly and a storage assembly, the kettle body assembly comprises a reaction kettle body, a feeding assembly is installed at the upper end of the reaction kettle body, and a quantitative assembly is installed in the feeding assembly; a stirring assembly is mounted in the reaction kettle body, the feeding assembly in a spherical state is matched with a rotating ball, and a first containing mechanism and a second containing mechanism are alternately used, so that raw materials are supplemented into the kettle body assembly, the external environment is prevented from communicating with the interior of the reaction kettle body, and through a weighing disc, the feeding accuracy is improved; by adopting the steel balls and the elastic rods, dust falling off from urea particles is reduced, urea particle raw materials are uniformly scattered into the reaction kettle body by adopting the material scattering disc, the reaction uniformity is improved, and the height of the storage hopper is reduced through the spiral conveyor which is obliquely mounted, so that the raw materials are convenient to supplement, and the operation is convenient.

Description

Technical Field

[0001] The present invention relates to a reactor, in particular to an aminosulfonic acid reactor provided with a quantitative feeding structure, belonging to the technical field of aminosulfonic acid production equipment. Background Art

[0002] Aminosulfonic acid is an inorganic solid acid formed by replacing the hydroxyl group of sulfuric acid with an amino group. Aminosulfonic acid can be used to synthesize herbicides, fire retardants, sweeteners, preservatives, metal cleaning agents, etc. It is a common chemical raw material. When preparing it, a reactor is used for preparation. The fuming sulfuric acid method is a commonly used preparation method. During the preparation, the raw materials are urea and fuming sulfuric acid. Under the condition of 40 - 70 °C, the sulfonation reaction occurs between urea and fuming sulfuric acid to generate crude aminosulfonic acid. After the reaction ends, the refined product is obtained through steps such as filtration and water treatment crystallization. When carrying out the reaction, a reactor is needed for the reaction. During the reaction, the accuracy of the urea particle feeding amount and the sufficiency of the contact between urea and fuming sulfuric acid are important measures to improve the quality and yield of the produced aminosulfonic acid. Moreover, since aminosulfonic acid needs to strictly control the sealed environment during production to avoid leakage, some current quantitative feeding structures are prone to connecting the internal environment of the reactor with the external environment during the quantitative feeding process, resulting in the destruction of the sealed environment. And when feeding, since what is contained is urea particles, which have certain corrosiveness, after long-term use, the feeding structure is prone to wear and tear, inconvenient for maintenance. And when feeding, the urea particles or the fallen powder are prone to adhere to the quantitative feeding structure, resulting in inaccurate quantification. Summary of the Invention

[0003] The purpose of the present invention is to provide an aminosulfonic acid reactor provided with a quantitative feeding structure in order to solve the above problems, which can effectively carry out quantitative addition of urea, and when adding, improve the uniformity of urea bulk material and avoid the connection between the inside and outside of the reactor body, improve the sealing performance, and is convenient for maintenance and replacement of parts and convenient for operation after long-term use.

[0004] The present invention achieves the above object through the following technical solutions. A sulfamic acid reaction kettle with a quantitative feeding structure includes a kettle body assembly and a storage assembly. The storage assembly is located on one side of the kettle body assembly. The kettle body assembly consists of a reaction kettle body and a placement rack. The placement rack supports the reaction kettle body. One side of the upper end of the reaction kettle body is fixedly installed with a feeding assembly, and a quantitative assembly for quantitative feeding is installed inside the feeding assembly. The storage assembly is connected to the reaction kettle body through the quantitative assembly and the feeding assembly. A stirring assembly for mixing during the reaction is installed inside the reaction kettle body. The lower end of the feeding assembly extends to one side of the upper end of the stirring assembly. The feeding assembly includes an upper shell and a lower shell. The upper shell and the lower shell are connected by a flange to form a spherical structure. The quantitative assembly includes a rotating ball, and a first containing mechanism and a second containing mechanism are respectively clamped at the upper end and the lower end of the rotating ball. During use, urea raw materials are added to the storage assembly and stored in a sealed manner. Fuming sulfuric acid is injected into the inside of the reaction kettle body, and the temperature inside the reaction kettle body is adjusted. When it is necessary to quantitatively put urea granule raw materials into the inside of the reaction kettle body, the raw materials in the storage assembly enter into the quantitative assembly, and the rotating ball in the quantitative assembly rotates inside the spherical structure formed by the upper shell and the lower shell. The urea raw materials alternately enter into the first containing mechanism and the second containing mechanism. The urea raw materials are weighed through the first containing mechanism or the second containing mechanism. After weighing, the rotating ball rotates, and by using gravity, the urea granules are discharged into the inside of the reaction kettle body, which not only ensures the effect of quantitative feeding but also ensures that the inside of the reaction kettle body is in a sealed state with the outside during feeding, avoiding pressure leakage inside the reaction kettle body. When the urea raw materials are discharged into the inside of the reaction kettle body through the feeding assembly, they fall onto the stirring assembly. Due to the high-speed rotation of the stirring assembly, the effect of spreading the materials is achieved, improving the contact effect between the urea granules and the fuming sulfuric acid.

[0005] Preferably, the placement rack is fixedly installed outside the reaction kettle body, and the placement rack supports the reaction kettle body. A discharge port with a valve is fixedly installed at the lower end of the reaction kettle body, and a retaining frame is fixedly installed at the upper end of the reaction kettle body. The driving end of the stirring assembly is fixedly installed on the retaining frame. Through the placement rack, it is convenient to place and fix the reaction kettle body. Through the discharge port, it is convenient to discharge after the reaction is completed. Through the retaining frame, it is convenient to install the stirring assembly.

[0006] Preferably, the material storage assembly includes a material storage hopper. The lower end of the material storage hopper is of a funnel-shaped structure. A sealing cover is buckled on the upper end of the material storage hopper. A fixing frame is fixedly installed at the lower end and one side of the material storage hopper. The horizontal fixing frame is fixedly connected to one side of the reaction kettle body. The lower end of the vertical fixing frame is fixed on the ground. A screw conveyor is fixedly installed at an inclined angle at the lower end of the material storage hopper. The discharge end of the screw conveyor is connected to the upper end of the feeding assembly. Through the fixing frame, it is convenient to install the material storage hopper. The material storage hopper holds the urea particle raw materials. And through the sealing cover, the sealing performance during storage is improved. And through the inclined screw conveyor, the material storage hopper is placed at a low position, which is convenient to put the external urea particle raw materials into the material storage hopper.

[0007] Preferably, a feed pipe is fixedly installed at the upper end of the upper shell, and the upper end of the feed pipe is connected to the discharge end of the material storage assembly. An installation seat is fixedly installed on one side of the lower shell. The driving end of the metering assembly is fixedly installed on the installation seat, which is convenient to fix the driving end of the metering assembly. A feed hopper is fixedly installed at the lower end of the lower shell. A connecting pipe is fixedly installed at the lower end of the feed hopper. An electric ball valve is fixedly installed at the middle position of the connecting pipe. And a diversion pipe is fixedly installed at the lower end of the connecting pipe. The lower end of the diversion pipe is in an inclined state. The diversion pipe extends into the interior of the reaction kettle body, and the end of the diversion pipe extends to one side of the upper end of the stirring assembly. Through the feed pipe, it is convenient for the screw conveyor to convey the urea particles into the spherical structure formed by the upper shell and the lower shell and enter the metering assembly. Through the feed hopper, it is convenient for the metered urea particles in the metering assembly to be discharged into the connecting pipe and enter the reaction kettle body through the diversion pipe. When feeding, the electric ball valve is opened. Through the rotating ball, the reaction kettle body is in a sealed state with the outside, avoiding the reaction kettle body from being connected to the outside through the feeding assembly and the metering assembly.

[0008] Preferably, shaft rods are fixedly installed at both ends of the rotating ball, and the rotating ball is rotatably installed on the sphere formed by the upper shell and the lower shell through the shaft rods. The ends of the shaft rods extend to the outside of the formed sphere. A driving motor is fixedly installed on one end of the shaft rod, and a conductive slip ring is fixedly installed on the other end of the shaft rod. The first storage mechanism and the second storage mechanism are electrically connected to an external control terminal through the conductive slip ring. During quantitative feeding, the driving motor drives the rotating ball to rotate in the sphere formed by the upper shell and the lower shell through the shaft rod. The screw conveyor alternately discharges urea particles into the first storage mechanism and the second storage mechanism. The first storage mechanism and the second storage mechanism weigh and quantify the urea particles, and the weighing data is transmitted to an external control device through the conductive slip ring, facilitating quantitative feeding.

[0009] Preferably, a first placement groove and a second placement groove are respectively formed at the upper end and the lower end of the rotating ball. The first storage mechanism is snap-fitted inside the first placement groove, and the second storage mechanism is snap-fitted inside the second placement groove. Coupler female seats are fixedly installed at the middle positions between the first placement groove and the second placement groove. The coupler female seats are electrically connected to the conductive slip ring. T-shaped snap grooves are formed in a circumferential array on the insides of the first placement groove and the second placement groove outside the coupler female seats. One side of the first storage mechanism and the second storage mechanism is snap-fitted with the snap grooves. After placement, one end of the first storage mechanism and the second storage mechanism is inserted into the coupler female seat, and the first storage mechanism and the second storage mechanism are electrically connected to the conductive slip ring, facilitating power supply and weighing signal transmission.

[0010] Preferably, both the first storage mechanism and the second storage mechanism include a storage box that fits with the first placement groove and the second placement groove. A coupler male seat that fits with the coupler female seat is fixedly installed at the middle position of the lower end of the storage box. Claws that fit with the snap grooves are fixedly installed in a circumferential array on the outside of the lower end of the storage box at the coupler male seat. Through the claws, it is convenient to fixedly install the first storage mechanism and the second storage mechanism inside the first placement groove and the second placement groove respectively. The coupler female seat and the coupler male seat adopt a coupler similar to a teapot, which is convenient for installing the first storage mechanism and the second storage mechanism and is also convenient for separation, facilitating the replacement and maintenance of the first storage mechanism and the second storage mechanism.

[0011] Preferably, a weighing pan is fixedly installed inside the storage box, and the weighing pan is electrically connected to the coupler female seat through the coupler male seat. Elastic rods are fixedly installed in an array on one side of the weighing pan, and the ends of the elastic rods extend to the outside of the rotating ball. During quantification, urea particles enter the inside of the storage box, and the weighing pan weighs and quantifies the urea particles. When the rotating ball drives the first storage mechanism and the second storage mechanism to rotate, the ends of the elastic rods come into contact with and are squeezed against the inner surface of the sphere formed by the upper shell and the lower shell, deforming. When the elastic rods rotate to the position of the feed hopper, the restriction is released, and the elastic rods recover from deformation. When recovering, vibrations are generated, thereby assisting the discharge of urea particles inside the storage box and reducing the dust adhesion on the urea particles.

[0012] Preferably, cylindrical cavities are vertically formed in a circular array on the outside of the first placement groove and the second placement groove inside the rotating ball. Steel balls are placed inside the cavities, and an elastic diaphragm with a serrated opening in the middle is fixedly installed at the middle position of the cavities. Through the elastic diaphragm, when the rotating ball rotates, the steel balls slide at both ends inside the cavities, and when passing through the elastic diaphragm, resistance is formed. When passing through the elastic diaphragm, the steel balls impact the ends of the cavities, causing the entire rotating ball to vibrate, assisting in discharging the urea particles inside the storage box.

[0013] Preferably, the stirring assembly includes a stirring shaft, the stirring shaft is rotatably installed on the reaction kettle body, a stirring motor is fixedly installed at the upper end of the cage, the output end of the stirring motor is fixedly connected to the stirring shaft, stirring rods are fixedly installed in an array on the stirring shaft, and counterweight cones are fixedly installed in an array at the lower ends of the stirring rods. A material dispersing plate is fixedly installed at the upper end inside the reaction kettle body on the stirring shaft. The material dispersing plate is of a funnel-shaped structure, and material dispersing notches are formed on the outside of the material dispersing plate. The lower end of the feeding assembly is located above one side of the material dispersing plate. During the reaction, the stirring motor drives the material dispersing plate and the stirring rods to rotate at high speed through the stirring shaft. The stirring rods drive the counterweight cones to rotate through the ropes, improving the stirring effect. When the feeding assembly discharges urea particles onto the material dispersing plate, due to the action of centrifugal force, the urea particles are thrown out and evenly scattered inside the reaction kettle body through the material dispersing notches, improving the uniformity of material dispersion.

[0014] The beneficial effects of the present invention are as follows: By adopting a spherical feeding component in cooperation with a rotating ball, when the rotating ball rotates, the first holding mechanism and the second holding mechanism are alternately used, which not only replenishes the raw materials inside the kettle body component, but also reduces the effect of the external environment being connected to the inside of the reaction kettle body. And through the weighing plate, the accuracy during feeding is improved, achieving the effect of quantitatively adding urea. Moreover, during feeding, by adopting steel balls and elastic rods, vibration is generated during material discharging, reducing the adhesion of dust falling off the urea particles to the first holding mechanism and the second holding mechanism. This not only improves the feeding accuracy, but also reduces adhesion and corrosion. And through the split upper shell and lower shell, it is convenient to replace the first holding mechanism and the second holding mechanism after long-term use, facilitating maintenance. And by adopting a material scattering plate, while high-speed stirring, the urea particle raw materials are evenly scattered into the inside of the reaction kettle body, improving the uniformity during the reaction. And through the inclined spiral conveyor, the height of the storage hopper is reduced, facilitating the replenishment of raw materials and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure after partial dissection of the present invention; Figure 3 It is a schematic diagram of the structure of the kettle body component in the present invention; Figure 4 It is a schematic diagram of the partial explosion of the storage component in the present invention; Figure 5 It is a schematic diagram of the structure when the feeding component and the metering component are combined in the present invention; Figure 6 It is a schematic diagram of the explosion of the feeding component in the present invention; Figure 7 It is a schematic diagram of the structure of the metering component in the present invention; Figure 8 It is a schematic diagram of the explosion of the metering component in the present invention; Figure 9 It is a schematic diagram of the partial vertical dissection at the position of the rotating ball in the present invention; Figure 10 It is a schematic diagram of the horizontal dissection at the position of the rotating ball in the present invention; Figure 11 It is a schematic diagram of the structure of the first holding mechanism in the present invention; Figure 12 It is a schematic diagram of the structure of the stirring component in the present invention.

[0016] In the figure: 1. Kettle body assembly; 101. Reaction kettle body; 102. Placing rack; 103. Discharge port; 104. Cage; 2. Storage material assembly; 201. Storage hopper; 202. Sealing cover; 203. Fixed rack; 204. Screw conveyor; 3. Feeding assembly; 301. Upper shell; 302. Lower shell; 303. Feeding pipe; 304. Mounting seat; 305. Feeding hopper; 306. Connecting pipe; 307. Electric ball valve; 308. Diversion pipe; 4. Quantitative assembly; 401. Rotating ball; 402. First containing mechanism; 403. Second containing mechanism; 404. Shaft rod; 405. Driving motor; 406. Conductive slip ring; 407. First placing groove; 408. Second placing groove; 409. Coupler female seat; 4010. Clamping groove; 4011. Containing box; 4012. Coupler male seat; 4013. Claw; 4014. Weighing pan; 4015. Elastic rod; 4016. Cavity; 4017. Steel ball; 4018. Elastic diaphragm; 5. Stirring assembly; 501. Stirring shaft; 502. Stirring motor; 503. Stirring rod; 504. Pulling rope; 505. Counterweight cone; 506. Scattering plate; 507. Scattering notch. Detailed implementation manner

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] Please refer to Figures 1-12As shown in the figure, a sulfamic acid reactor with a quantitative feeding structure includes a reactor body assembly 1 and a storage assembly 2. The storage assembly 2 is located on one side of the reactor body assembly 1. The reactor body assembly 1 is composed of a reactor body 101 and a placement rack 102. One side of the upper end of the reactor body 101 is fixedly installed with a feeding assembly 3, and a quantitative assembly 4 for quantitative feeding is installed inside the feeding assembly 3. The storage assembly 2 is connected to the reactor body 101 through the quantitative assembly 4 and the feeding assembly 3. A stirring assembly 5 for mixing during the reaction is installed inside the reactor body 101. The lower end of the feeding assembly 3 extends to one side of the upper end of the stirring assembly 5. The feeding assembly 3 includes an upper housing 301 and a lower housing 302. The upper housing 301 and the lower housing 302 are connected by a flange to form a spherical structure. The quantitative assembly 4 includes a rotating ball 401, and a first holding mechanism 402 and a second holding mechanism 403 are respectively clamped at the upper end and the lower end of the rotating ball 401. During use, urea raw materials are added to the storage assembly 2 and stored in a sealed manner. Fuming sulfuric acid is injected into the reactor body 101. When it is necessary to quantitatively feed urea particle raw materials into the reactor body 101, the raw materials in the storage assembly 2 enter the quantitative assembly 4, and the rotating ball 401 in the quantitative assembly 4 rotates inside the spherical structure formed by the upper housing 301 and the lower housing 302. The urea raw materials alternately enter the first holding mechanism 402 and the second holding mechanism 403. The urea raw materials are weighed by the first holding mechanism 402 or the second holding mechanism 403. After weighing, the rotating ball 401 rotates, and by using gravity, the urea particles are discharged into the reactor body 101. Alternately using the first holding mechanism 402 and the second holding mechanism 403 not only ensures quantitative feeding but also ensures that the inside and outside of the reactor body 101 are in a sealed state during feeding, avoiding pressure leakage inside the reactor body 101. Moreover, the upper housing 301 and the lower housing 302 at the upper end of the feeding assembly 3 are assembled by a flange, and the first holding mechanism 402 and the second holding mechanism 403 are clamped on the rotating ball 401. When the first holding mechanism 402 and the second holding mechanism 403 are corroded after long-term use, it is convenient to replace the first holding mechanism 402 and the second holding mechanism 403, which is convenient for maintenance. And when the urea raw materials are discharged into the reactor body 101 through the feeding assembly 3, they fall onto the stirring assembly 5. Due to the high-speed rotation of the stirring assembly 5, a material scattering effect is achieved, improving the contact effect between the urea particles and the fuming sulfuric acid and enhancing the sufficiency of the reaction.

[0019] The placement rack 102 is fixedly installed outside the reactor body 101, and the placement rack 102 supports the reactor body 101. A discharge port 103 with a valve is fixedly installed at the lower end of the reactor body 101, and a retaining frame 104 is fixedly installed at the upper end of the reactor body 101. The driving end of the stirring assembly 5 is fixedly installed on the retaining frame 104. Through the placement rack 102, it is convenient to place and fix the reactor body 101. Through the discharge port 103, it is convenient to discharge after the reaction is completed, and then post-treatment is carried out. Through the retaining frame 104, it is convenient to install the stirring assembly 5, so that the stirring assembly 5 stably stirs and mixes the inside of the reactor body 101.

[0020] The material storage assembly 2 includes a storage hopper 201. The lower end of the storage hopper 201 is of a funnel-shaped structure. A sealing cover 202 is buckled on the upper end of the storage hopper 201. A fixing frame 203 is fixedly installed at the lower end and one side of the storage hopper 201. The horizontal fixing frame 203 is fixedly connected to one side of the reactor body 101, and the lower end of the vertical fixing frame 203 is fixed on the ground. A screw conveyor 204 is fixedly installed at the lower end of the storage hopper 201 in an inclined manner. The discharge end of the screw conveyor 204 is connected to the upper end of the feeding assembly 3. Through the fixing frame 203, it is convenient to install the storage hopper 201. The storage hopper 201 stores the urea granule raw materials. And through the sealing cover 202, the sealing performance during storage is improved, reducing the absorption of moisture in the air by the urea granules and preventing the phenomenon of moisture absorption. And through the inclined screw conveyor 204, the storage hopper 201 is placed at a low position, which is convenient to put the external urea granule raw materials into the storage hopper 201, reducing the operation difficulty. During feeding, the screw conveyor 204 conveys the urea granules at a low position to the inside of the feeding assembly 3, and then weighs and quantifies through the metering assembly 4.

[0021] The upper end of the upper housing 301 is fixedly installed with a feed pipe 303, and the upper end of the feed pipe 303 is connected to the discharge end of the storage component 2. One side of the lower housing 302 is fixedly installed with a mounting seat 304, and the driving end of the metering component 4 is fixedly installed on the mounting seat 304, which is convenient for fixing the driving end of the metering component 4. The lower end of the lower housing 302 is fixedly installed with a feed hopper 305, the lower end of the feed hopper 305 is fixedly installed with a connecting pipe 306, an electric ball valve 307 is fixedly installed at the middle position of the connecting pipe 306, and the lower end of the connecting pipe 306 is fixedly installed with a diversion pipe 308. The lower end of the diversion pipe 308 is in an inclined state, the diversion pipe 308 extends into the interior of the reaction kettle body 101, and the end of the diversion pipe 308 extends to one side of the upper end of the stirring component 5. Through the feed pipe 303, it is convenient for the screw conveyor 204 to transport the urea particles into the spherical structure formed by the upper housing 301 and the lower housing 302 and enter the metering component 4. And through the feed hopper 305, it is convenient for the metered urea particles in the metering component 4 to be discharged into the connecting pipe 306 and enter the reaction kettle body 101 through the electric ball valve 307 and the diversion pipe 308. When not feeding, the electric ball valve 307 is closed to improve the sealing performance of the reaction kettle body 101. When feeding, the electric ball valve 307 is opened, and through the rotation of the rotating ball 401, the reaction kettle body 101 is in a sealed state with the outside, avoiding the reaction kettle body 101 communicating with the outside through the feed component 3 and the metering component 4.

[0022] Shaft rods 404 are fixedly installed at both ends of the rotating ball 401, and the rotating ball 401 is rotatably installed on the sphere formed by the upper housing 301 and the lower housing 302 through the shaft rods 404. The ends of the shaft rods 404 extend to the outside of the formed sphere. A driving motor 405 is fixedly installed on one end of the shaft rod 404, and a conductive slip ring 406 is fixedly installed on the other end of the shaft rod 404. The first storage mechanism 402 and the second storage mechanism 403 are electrically connected to an external control terminal through the conductive slip ring 406. During quantitative feeding, the driving motor 405 drives the rotating ball 401 to rotate in the sphere formed by the upper housing 301 and the lower housing 302 through the shaft rod 404. The screw conveyor 204 alternately discharges urea particles into the interiors of the first storage mechanism 402 and the second storage mechanism 403. The first storage mechanism 402 and the second storage mechanism 403 weigh and quantify the urea particles, and the weighing data is transmitted to an external control device through the conductive slip ring 406, facilitating quantitative feeding. First placement grooves 407 and second placement grooves 408 are respectively formed at the upper and lower ends of the rotating ball 401. The first storage mechanism 402 is snap-fitted inside the first placement groove 407, and the second storage mechanism 403 is snap-fitted inside the second placement groove 408. Coupler female seats 409 are fixedly installed at the middle positions between the first placement groove 407 and the second placement groove 408. The coupler female seats 409 are electrically connected to the conductive slip ring 406. T-shaped snap grooves 4010 are circumferentially arranged inside the first placement groove 407 and the second placement groove 408 on the outer sides of the coupler female seats 409. One side of the first storage mechanism 402 and the second storage mechanism 403 is snap-fitted with the snap grooves 4010. When installing the first storage mechanism 402 and the second storage mechanism 403, through the snap grooves 4010, the first storage mechanism 402 is installed inside the first placement groove 407, and the second storage mechanism 403 is installed inside the second placement groove 408. After placement, one end of the first storage mechanism 402 and the second storage mechanism 403 is inserted into the coupler female seat 409, being electrically connected to the conductive slip ring 406, facilitating power supply and weighing signal transmission. Both the first storage mechanism 402 and the second storage mechanism 403 include a storage box 4011. The storage box 4011 fits with the first placement groove 407 and the second placement groove 408. A coupler male seat 4012 that fits with the coupler female seat 409 is fixedly installed at the middle position of the lower end of the storage box 4011. Claws 4013 that fit with the snap grooves 4010 are circumferentially arranged on the lower end of the storage box 4011 on the outer side of the coupler male seat 4012. Through the claws 4013, it is convenient to respectively and fixedly install the first storage mechanism 402 and the second storage mechanism 403 inside the first placement groove 407 and the second placement groove 408. The coupler female seat 409 and the coupler male seat 4012 adopt a coupler similar to a teapot, facilitating electrical connection, convenient for installing the first storage mechanism 402 and the second storage mechanism 403, and facilitating separation.It is convenient to replace and maintain the first storage mechanism 402 and the second storage mechanism 403. During feeding, the screw conveyor 204 discharges urea particles into the interior of the storage box 4011 for quantification. A weighing pan 4014 is fixedly installed inside the storage box 4011, and the weighing pan 4014 is electrically connected to the coupler female seat 409 through the coupler male seat 4012. Elastic rods 4015 are fixedly installed in an array on one side of the weighing pan 4014, and the ends of the elastic rods 4015 extend outside the rotating ball 401. During quantification, urea particles enter the interior of the storage box 4011, and the weighing pan 4014 weighs and quantifies the urea particles. When the rotating ball 401 drives the first storage mechanism 402 and the second storage mechanism 403 to rotate, since the ends of the elastic rods 4015 extend outside the rotating ball 401, when the elastic rods 4015 contact the inner surface of the sphere formed by the upper housing 301 and the lower housing 302, they deform. When the elastic rods 4015 rotate to the position of the feed hopper 305, the restriction is released, and the elastic rods 4015 recover their deformation. When recovering, vibrations are generated, which helps to discharge the urea particles inside the storage box 4011, reduce the dust adhesion on the urea particles, increase the feeding speed, and reduce the caking of urea particles on the storage box 4011. Inside the rotating ball 401, cylindrical cavities 4016 are vertically arranged in a circular array on the outer sides of the first placement groove 407 and the second placement groove 408. Steel balls 4017 are placed inside the cavities 4016, and an elastic diaphragm 4018 with a serrated opening in the middle is fixedly installed at the middle position of the cavities 4016. Through the elastic diaphragm 4018, when the rotating ball 401 rotates, the steel balls 4017 slide at both ends inside the cavities 4016, and when passing through the elastic diaphragm 4018, resistance is formed. When passing through the elastic diaphragm 4018, the steel balls 4017 impact the ends of the cavities 4016, causing the entire rotating ball 401 to vibrate, which helps to discharge the urea particles inside the storage box 4011 and improve the feeding effect.

[0023] The stirring assembly 5 includes a stirring shaft 501 which is rotatably installed on the reaction kettle body 101. The upper end of the cage 104 is fixedly installed with a stirring motor 502. The output end of the stirring motor 502 is fixedly connected to the stirring shaft 501. Stirring rods 503 are fixedly installed on the stirring shaft 501 in an array, and pulling ropes 504 are fixedly installed at the lower ends of the stirring rods 503 in an array. A counterweight cone 505 is fixedly installed at the lower end of the pulling rope 504. A material scattering plate 506 is fixedly installed on the stirring shaft 501 at the upper inner position of the reaction kettle body 101. The material scattering plate 506 is of a funnel-shaped structure, and a material scattering notch 507 is formed on the outer side of the material scattering plate 506. The lower end of the feeding assembly 3 is located above one side of the material scattering plate 506. During the reaction, the stirring motor 502 drives the stirring shaft 501 to rotate at a high speed, so that the material scattering plate 506 and the stirring rods 503 rotate. The stirring rods 503 drive the counterweight cone 505 to rotate through the pulling ropes 504, improving the stirring effect. When the feeding assembly 3 discharges urea particles onto the material scattering plate 506, due to the action of centrifugal force, the urea particles are thrown out and evenly scattered inside the reaction kettle body 101 through the material scattering notch 507, improving the contact effect between the urea particles and fuming sulfuric acid and the uniformity of material scattering.

[0024] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0025] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A sulfamic acid reaction kettle provided with a quantitative feeding structure, characterized in that: It includes a kettle body assembly (1) and a material storage assembly (2). The material storage assembly (2) is located on one side of the kettle body assembly (1). The kettle body assembly (1) is composed of a reaction kettle body (101) and a placement rack (102). One side of the upper end of the reaction kettle body (101) is fixedly installed with a feeding assembly (3), and a quantitative assembly (4) for quantitative feeding is installed inside the feeding assembly (3). The material storage assembly (2) is communicated with the reaction kettle body (101) through the quantitative assembly (4) and the feeding assembly (3). A stirring assembly (5) for mixing during the reaction is installed inside the reaction kettle body (101). The lower end of the feeding assembly (3) extends to one side of the upper end of the stirring assembly (5). The feeding assembly (3) includes an upper shell (301) and a lower shell (302). The upper shell (301) and the lower shell (302) are connected by a flange to form a spherical structure. The quantitative assembly (4) includes a rotating ball (401), and a first holding mechanism (402) and a second holding mechanism (403) are respectively clamped at the upper end and the lower end of the rotating ball (401).

2. The sulfamic acid reactor provided with a quantitative feeding structure according to claim 1, characterized in that: The placement rack (102) is fixedly installed outside the reaction kettle body (101), and the placement rack (102) supports the reaction kettle body (101). A discharge port (103) with a valve is fixedly installed at the lower end of the reaction kettle body (101), and a retaining frame (104) is fixedly installed at the upper end of the reaction kettle body (101). The driving end of the stirring assembly (5) is fixedly installed on the retaining frame (104).

3. The amidosulfonic acid reactor provided with a quantitative feeding structure according to claim 1 is characterized in that: The material storage assembly (2) includes a storage hopper (201). The lower end of the storage hopper (201) is of a funnel-shaped structure. A sealing cover (202) is buckled at the upper end of the storage hopper (201). A fixing frame (203) is fixedly installed at the lower end and one side of the storage hopper (201). The horizontal fixing frame (203) is fixedly connected to one side of the reaction kettle body (101), and the lower end of the vertical fixing frame (203) is fixed on the ground. A screw conveyor (204) is obliquely and fixedly installed at the lower end of the storage hopper (201). The discharge end of the screw conveyor (204) is connected to the upper end of the feeding assembly (3).

4. The sulfamic acid reactor provided with a quantitative feeding structure according to claim 1, characterized in that: The upper end of the upper housing (301) is fixedly installed with a feed pipe (303), and the upper end of the feed pipe (303) is connected to the discharge end of the storage component (2). One side of the lower housing (302) is fixedly installed with a mounting seat (304), and the driving end of the metering component (4) is fixedly installed on the mounting seat (304). The lower end of the lower housing (302) is fixedly installed with a feed hopper (305), the lower end of the feed hopper (305) is fixedly installed with a connecting pipe (306), an electric ball valve (307) is fixedly installed at the middle position of the connecting pipe (306), and the lower end of the connecting pipe (306) is fixedly installed with a diversion pipe (308). The lower end of the diversion pipe (308) is in an inclined state. The diversion pipe (308) extends into the interior of the reaction kettle body (101), and the end of the diversion pipe (308) extends to one side of the upper end of the stirring component (5).

5. The sulfamic acid reaction kettle provided with a quantitative feeding structure according to claim 1, wherein: Both ends of the rotating ball (401) are fixedly installed with shaft rods (404), and the rotating ball (401) is rotatably installed on the sphere formed by the upper housing (301) and the lower housing (302) through the shaft rods (404). The ends of the shaft rods (404) extend outside the formed sphere. A driving motor (405) is fixedly installed on one of the shaft rods (404), and a conductive slip ring (406) is fixedly installed on the other shaft rod (404). The first containing mechanism (402) and the second containing mechanism (403) are electrically connected to an external control end through the conductive slip ring (406).

6. The sulfamic acid reaction kettle provided with a quantitative feeding structure according to claim 5, characterized in that: A first placement groove (407) and a second placement groove (408) are respectively formed at the upper and lower ends of the rotating ball (401). The first containing mechanism (402) is clamped inside the first placement groove (407), and the second containing mechanism (403) is clamped inside the second placement groove (408). Coupler female seats (409) are fixedly installed at the middle positions of the first placement groove (407) and the second placement groove (408). The coupler female seats (409) are electrically connected to the conductive slip ring (406) by wires. T-shaped clamping grooves (4010) are formed in a circular array inside the first placement groove (407) and the second placement groove (408) on the outer side of the coupler female seat (409). One side of the first containing mechanism (402) and the second containing mechanism (403) is clamped with the clamping groove (4010).

7. The sulfamic acid reaction kettle provided with a quantitative feeding structure according to claim 6, characterized in that: Both the first storage mechanism (402) and the second storage mechanism (403) include a storage box (4011). The storage box (4011) is adapted to the first placement groove (407) and the second placement groove (408). At the middle position of the lower end of the storage box (4011), a coupler sub - seat (4012) adapted to the coupler female seat (409) is fixedly installed. At the outer side of the coupler sub - seat (4012) at the lower end of the storage box (4011), a plurality of claws (4013) adapted to the clamping grooves (4010) are fixedly installed in a circumferential array.

8. The sulfamic acid reaction kettle provided with a quantitative feeding structure according to claim 7, characterized in that: A weighing plate (4014) is fixedly installed inside the storage box (4011), and the weighing plate (4014) is electrically connected to the coupler female seat (409) through the coupler sub - seat (4012). A plurality of elastic rods (4015) are fixedly installed in an array on one side of the weighing plate (4014), and the ends of the elastic rods (4015) extend to the outside of the rotating ball (401).

9. The sulfamic acid reactor provided with a quantitative feeding structure according to claim 6, wherein: Inside the rotating ball (401), a plurality of cylindrical cavities (4016) are vertically formed in a circumferential array outside the first placement groove (407) and the second placement groove (408). Steel balls (4017) are placed inside the cavities (4016), and an elastic diaphragm (4018) with a serrated opening in the middle is fixedly installed at the middle position of the cavities (4016).

10. The sulfamic acid reactor provided with a quantitative feeding structure according to claim 2, characterized in that: The stirring assembly (5) includes a stirring shaft (501). The stirring shaft (501) is rotatably installed on the reaction kettle body (101). A stirring motor (502) is fixedly installed at the upper end of the cage (104). The output end of the stirring motor (502) is fixedly connected to the stirring shaft (501). A plurality of stirring rods (503) are fixedly installed in an array on the stirring shaft (501), and a plurality of pull ropes (504) are fixedly installed at the lower ends of the stirring rods (503) in an array. A counterweight cone (505) is fixedly installed at the lower end of the pull ropes (504). A material - spreading plate (506) is fixedly installed at the upper - inner position of the reaction kettle body (101) on the stirring shaft (501). The material - spreading plate (506) is of a funnel - shaped structure, and a material - spreading notch (507) is formed on the outer side of the material - spreading plate (506). The lower end of the feeding assembly (3) is located above one side of the material - spreading plate (506).

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