Method and device for producing industrial ammonium nitrate and porous ammonium nitrate

Abstract

The invention discloses a method and device for producing industrial ammonium nitrate and porous ammonium nitrate, belongs to the field of chemical treatment, solves the problem that an existing chemical production device cannot process different materials, and comprises a pretreatment assembly, a granulation part, a screening mechanism and an evaporation assembly, the pretreatment assembly is used for collecting and conveying an industrial ammonium nitrate solution and a porous ammonium nitrate solution, the industrial ammonium nitrate and the porous sodium nitrate can be efficiently and stably processed by arranging the pretreatment assembly, the granulation piece, the screening mechanism and the evaporation assembly, processing of the two solutions can be stably switched and changed, and the processing efficiency is improved. When two solutions are processed, all parts in the device need to be cleaned in advance, the situation that the two solutions pollute each other during processing is prevented, and therefore the stability of the whole device during operation is guaranteed, the processing cost during processing of the two solutions is reduced, and the working quality of the device is improved.

Description

Technical Field

[0001] The invention belongs to the field of chemical processing, and in particular relates to a method and a device for producing industrial ammonium nitrate and porous ammonium nitrate. Background Art

[0002] Chemical production refers to a general term for various types of equipment used to process and treat various chemical materials. Now, with the continuous development of technology, existing production equipment is able to process and treat various chemical materials, including industrial ammonium nitrate and porous ammonium nitrate, which are common chemical materials in the chemical industry.

[0003] Among the existing chemical production devices, the existing porous ammonium nitrate devices can only operate porous ammonium nitrate alone. If an enterprise wants to produce industrial ammonium nitrate, it needs to build an industrial ammonium nitrate device in another area. The construction cost of the entire device is high, and the investment is hundreds of millions, which brings a heavy burden on the enterprise's investment. If the original porous ammonium nitrate device can be technically transformed to realize the production of industrial ammonium nitrate, thereby avoiding repeated investment in equipment, the site and most of the important equipment can be shared, reducing the burden on the enterprise. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In order to solve the problems raised in the above background technology, the present invention adopts the following technical solutions.

[0006] A method and device for producing industrial ammonium nitrate and porous ammonium nitrate, comprising a pretreatment component, a granulation component, a screening mechanism and an evaporation component. The pretreatment component collects and transports industrial ammonium nitrate solution and porous ammonium nitrate solution. The granulation component receives the solution transported by the pretreatment component and then processes it into fixed particles. A screening mechanism for screening and wrapping solid particles is arranged on the side of the granulation component. The pretreatment component is connected to an evaporation component for processing and exchanging heat for industrial ammonium nitrate through a pipeline.

[0007] As a preferred technical solution of the present invention, the pretreatment component includes a first processing chamber, an additive storage chamber, a conveying pump body and a second processing chamber. The bottom outlet of the first processing chamber is connected to the conveying pump body through a pipeline, and the output end of the conveying pump body is connected to the second processing chamber through a pipeline. An additive storage chamber for replenishing the additive solution inside the second processing chamber is arranged on the side of the second processing chamber.

[0008] As a preferred technical solution of the present invention, the pretreatment component also includes a solution input pipe and an agitator. The solution input pipe is connected to one side of the surface of the first processing chamber. The first processing chamber and the second processing chamber are both equipped with agitators for stirring the internal solution.

[0009] As a preferred technical solution of the present invention, the granulation component includes a granulation component, a first conveyor belt, a second conveyor belt, a drying drum, a third conveyor belt and a bucket elevator. The granulation component processes the solution mixed inside the pretreatment component, a special granulation nozzle is installed inside the granulation component, a first conveyor belt is arranged at the bottom outlet of the granulation component, a second conveyor belt is arranged on the side of the first conveyor belt, a drying drum for drying the material is arranged on the side of the second conveyor belt, a third conveyor belt for conveying the material is arranged on the side of the drying drum, and a bucket elevator for stably conveying the material is arranged on the side of the third conveyor belt.

[0010] As a preferred technical solution of the present invention, the granulation component also includes a fourth conveyor belt, which is arranged below the drying drum. When the granulation component processes industrial ammonium nitrate, the material is stably transported by the fourth conveyor belt.

[0011] As a preferred technical solution of the present invention, the screening mechanism includes a screener, a plate cooler, a fifth conveyor belt, a wrapping roller, a sixth conveyor belt and a finished product silo. The screener is installed on the side of the granulation member to screen the material conveyed by the granulation member. The plate cooler is arranged at the discharge end of the screener, the fifth conveyor belt is arranged at the bottom end of the plate cooler, the wrapping roller is arranged on the side of the fifth conveyor belt, the wrapping roller sprays wrapping oil on the material to wrap it, and a finished product silo for storing processed materials is arranged on the side of the sixth conveyor belt.

[0012] As a preferred technical solution of the present invention, the screening mechanism further includes a conveying pipeline for unqualified materials after screening, and the conveying pipeline is connected to the pretreatment component.

[0013] As a preferred technical solution of the present invention, the evaporation component includes a two-stage evaporator and a steam condensate tank. The top of the pretreatment component is provided with a two-stage evaporator for increasing the concentration of the ammonium nitrate solution, and the side of the two-stage evaporator is provided with a steam condensate tank for collecting steam condensate.

[0014] As a preferred technical solution of the present invention, the evaporation component also includes an air heater, a pressurized fan and an air filter. The air filter is arranged on the side of the second-stage evaporator, and the air filter filters the external air. The pressurized fan is installed on the side of the air filter to pressurize the filtered air inside the air filter. The air heater is connected to the side of the pressurized fan through a pipeline, and the air heater heats the pressurized gas and then inputs the rest into the second-stage evaporator.

[0015] A method for producing industrial ammonium nitrate and porous ammonium nitrate comprises the following steps: For porous ammonium nitrate processing S1, material pretreatment, by sending 96-98% ammonium nitrate solution from the outside to the first processing chamber, and then using the delivery pump body to deliver the solution to the second processing chamber, and after mixing with the additive solution from the additive storage chamber, it is evenly stirred by the agitator in the delivery pump body and then delivered to the granulation part; S2, granulation processing, the solution input in the above steps enters the granulation component, is sprayed out through the granulation nozzle in the granulation component, and after the temperature is reduced to 50-60°C by heat and mass transfer with the countercurrent rising air, solid ammonium nitrate is gradually formed from the molten liquid, falls into the first conveyor belt, and is then transported to the second conveyor belt through the first conveyor belt, and the second conveyor belt is then transported to the drying drum, and the solid ammonium nitrate is blown and dried by hot air through the drying drum, and after drying, it comes out of the drying drum, is first sent to the third conveyor belt, and then transported to the bucket elevator, and after the bucket elevator is lifted, it is input into the screening mechanism; S3, screening treatment, first screen out the finished product of standard particle size through the screener, the qualified particle size falls into the plate cooler for cooling, the unqualified particle size returns to the first processing warehouse through the conveying pipeline, after being stirred and dissolved by the stirrer, this kind of solution is sent to granulation with the ammonium nitrate solution, and the temperature of the finished ammonium nitrate after passing through the plate cooler is reduced to below 31 ° C, and then falls into the fifth conveyor belt, and is transported to the wrapping drum through the fifth conveyor belt, and after being wrapped with the sprayed wrapping oil in the wrapping drum, it is transported to the sixth conveyor belt, and finally falls into the finished product silo, enters the packaging process, and completes the processing of porous ammonium nitrate; For industrial ammonium nitrate processing S4, cleaning, firstly, clean the residual ammonium nitrate in the first processing chamber and the second processing chamber, the wrapping roller, the first conveyor belt, the second conveyor belt and other conveyor belts and various equipment for producing porous ammonium nitrate; S5, pretreatment, inputting the 96~98% ammonium nitrate liquid sent from the outside into the first processing chamber, and then transporting it to the second-stage evaporator through the delivery pump body, processing the original solution by the operation of the second-stage evaporator, evaporating and concentrating it to about 99.5%, and then inputting the solution into the second processing chamber; S6, processing, then inputting the material into the granulating component, granulating the material through the use of the granulating component, conveying the material through the first conveyor belt and the second conveyor belt after granulation, and then transferring it to the inside of the fourth conveyor belt, and then sending it to the bucket elevator, and then processing the material according to the screening process proposed in S3 to complete the processing of industrial ammonium nitrate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, by arranging a pretreatment component, a granulation component, a screening mechanism and an evaporation component, industrial ammonium nitrate and porous sodium nitrate can be processed efficiently and stably, and the processing of the two solutions can be stably switched and changed. It only needs to clean the components in the device in advance to prevent the two solutions from being contaminated with each other during processing, thereby ensuring the stability of the overall operation of the equipment, reducing the processing cost of the two solutions during processing, and improving the working quality of the equipment itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a plan view of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the structure of the pretreatment component of the present invention.

[0019] Figure 3 It is a schematic diagram of the structure of the granulation member of the present invention.

[0020] Figure 4 It is a structural schematic diagram of the screening mechanism in the present invention.

[0021] Figure 5 It is a schematic diagram of the structure of the evaporation component in the present invention.

[0022] The corresponding relationship between the illustrations and component names in the figure is as follows: 1. Pretreatment component; 11. First processing chamber; 12. Additive storage chamber; 13. Conveying pump body; 14. Second processing chamber; 15. Solution input pipe; 16. Agitator; 2. Granulation component; 21. Granulation component; 22. First conveyor belt; 23. Second conveyor belt; 24. Drying drum; 25. Third conveyor belt; 26. Bucket elevator; 27. Fourth conveyor belt; 3. Screening mechanism; 31. Screener; 32. Conveying pipeline; 33. Plate cooler; 34. Fifth conveyor belt; 35. Wrapping drum; 36. Sixth conveyor belt; 37. Finished product silo; 4. Evaporation component; 41. Second stage evaporator; 42. Steam condensate tank; 43. Air heater; 44. Pressure fan; 45. Air filter. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0026] Depend on Figure 1 As shown, it is a structural schematic diagram of the device for producing industrial ammonium nitrate and porous ammonium nitrate in this embodiment, including a pretreatment component 1, a granulation component 2, a screening mechanism 3 and an evaporation component 4. The pretreatment component 1 collects and transports industrial ammonium nitrate solution and porous ammonium nitrate solution, the granulation component 2 receives the solution transported by the pretreatment component 1 and then processes it into fixed particles, and a screening mechanism 3 for screening and wrapping solid particles is arranged on the side of the granulation component 2. The pretreatment component 1 is connected to the evaporation component 4 for processing and heat exchange of industrial ammonium nitrate through a pipeline.

[0027] During use, the corresponding processing flow is selected according to the different materials to be processed. The materials to be processed are collected and mixed by using the pre-processing component 1, and then the materials are input into the granulating component 2. The materials are granulated and dried by the operation of the various components of the granulating component 2. After that, the granular materials are screened by using the screening mechanism 3. The substandard materials are re-input into the pre-processing component 1 for processing, and the qualified materials are processed by the operation of multiple groups of components. The complete material processing ensures the working quality of the equipment during operation.

[0028] By the attached Figure 2 As shown, it is a structural schematic diagram of the pretreatment component 1 in this embodiment, the pretreatment component 1 includes a first processing chamber 11, an additive storage chamber 12, a delivery pump body 13 and a second processing chamber 14, the bottom outlet of the first processing chamber 11 is connected to the delivery pump body 13 through a pipeline, the output end of the delivery pump body 13 is connected to the second processing chamber 14 through a pipeline, and the side of the second processing chamber 14 is provided with an additive storage chamber 12 for replenishing the additive solution inside the second processing chamber 14.

[0029] During use, the first processing chamber 11 is used to collect and store the externally input industrial ammonium nitrate solution and porous ammonium nitrate solution, and then, with the cooperation of the conveying pump body 13, the solution is input into the second processing chamber 14 and fully mixed with the additive solution stored in the additive storage chamber 12 to complete the pretreatment of the material.

[0030] By the attached Figure 2As shown, it is a schematic diagram of the structure of the pretreatment component 1 in this embodiment. The pretreatment component 1 also includes a solution input pipe 15 and an agitator 16. The solution input pipe 15 is connected to one side of the surface of the first processing chamber 11. The first processing chamber 11 and the second processing chamber 14 are both equipped with an agitator 16 for stirring the internal solution.

[0031] During use, the external solution is input into the first processing chamber 11 through the solution input pipe 15, and the operation of the agitator 16 fully mixes the solution in the second processing chamber 14 with the additive solution. The agitator 16 is also installed on the surface of the first processing chamber 11, which can re-mix the unqualified materials after screening in the screening mechanism 3 to ensure the stability of the equipment's own operation.

[0032] By the attached Figure 3 As shown, it is a schematic diagram of the structure of the granulation part 2 in this embodiment, the granulation part 2 includes a granulation component 21, a first conveyor belt 22, a second conveyor belt 23, a drying drum 24, a third conveyor belt 25 and a bucket elevator 26. The granulation component 21 processes the mixed solution inside the pretreatment component 1, and a special granulation nozzle is installed inside the granulation component 21. The first conveyor belt 22 is arranged at the bottom outlet of the granulation component 21, and the second conveyor belt 23 is arranged on the side of the first conveyor belt 22. A drying drum 24 for drying the material is arranged on the side of the second conveyor belt 23, and a third conveyor belt 25 for conveying the material is arranged on the side of the drying drum 24. A bucket elevator 26 for stably conveying the material is arranged on the side of the third conveyor belt 25.

[0033] During use, the solution output by the pretreatment component 1 is granulated by using the granulating component 21 and the granulating nozzle installed inside the granulating component 21, and then the granulated material is conveyed by using the first conveyor belt 22 and the second conveyor belt 23. At this time, there are certain differences in the subsequent paths according to the different initial solutions. When the solution is porous ammonium nitrate, the material enters the drying drum 24 for drying, and then the material is conveyed to the loose screening mechanism 3 through the cooperation of the third conveyor belt 25 and the bucket elevator 26.

[0034] By the attached Figure 3 As shown, it is a schematic diagram of the structure of the granulation member 2 in this embodiment. The granulation member 2 also includes a fourth conveyor belt 27, and the fourth conveyor belt 27 is arranged below the drying drum 24. When the granulation member 21 processes industrial ammonium nitrate, the material is stably conveyed by the fourth conveyor belt 27. When the initial solution is an industrial ammonium nitrate solution, the material passes through the second conveyor belt 23 and is directly input into the fourth conveyor belt 27. Thereafter, the material is directly input into the screening mechanism 3 through the cooperation of the fourth conveyor belt 27 and the bucket elevator 26. By the attached Figure 4As shown, it is a structural schematic diagram of the screening mechanism 3 in this embodiment, the screening mechanism 3 includes a screener 31, a plate cooler 33, a fifth conveyor belt 34, a wrapping roller 35, a sixth conveyor belt 36 and a finished product bin 37, the screener 31 is installed on the side of the granulation member 2, and the material conveyed by the granulation member 2 is screened, the plate cooler 33 is arranged at the discharge end of the screener 31, the fifth conveyor belt 34 is arranged at the bottom of the plate cooler 33, the wrapping roller 35 is arranged on the side of the fifth conveyor belt 34, the wrapping roller 35 is sprayed with wrapping oil on the material for wrapping, and a finished product bin 37 for storing processed materials is arranged on the side of the sixth conveyor belt 36.

[0035] The finished products with standard particle size are screened out by the screener 31, and the qualified particle size falls into the plate cooler 33 for cooling. After passing through the plate cooler 33, the temperature of the finished ammonium nitrate is reduced to below 31°C, and then falls into the fifth conveyor belt 34, and is transported to the wrapping drum 35 through the fifth conveyor belt 34. After being wrapped with the sprayed wrapping oil in the wrapping drum 35, it is transported to the sixth conveyor belt 36, and finally falls into the finished product silo 37 to enter the packaging process, completing the processing of porous ammonium nitrate.

[0036] By the attached Figure 4 As shown, it is a schematic diagram of the structure of the screening mechanism 3 in this embodiment. The screening mechanism 3 also includes a conveying pipeline 32 for unqualified materials after screening. The conveying pipeline 32 is connected to the pretreatment component 1. The unqualified particle size is returned to the first processing bin 11 through the conveying pipeline 32. After being stirred and dissolved by the agitator 16, this type of solution is sent to granulation with the ammonium nitrate solution.

[0037] By the attached Figure 5 As shown, it is a schematic diagram of the structure of the evaporation component 4 in this embodiment, the evaporation component 4 includes a two-stage evaporator 41 and a steam condensate tank 42. The top of the pretreatment component 1 is provided with a two-stage evaporator 41 for increasing the concentration of the ammonium nitrate solution, and the side of the two-stage evaporator 41 is provided with a steam condensate tank 42 for collecting the steam condensate. Through the operation of the two-stage evaporator 41, the solution input into the two-stage evaporator 41 is processed to increase the concentration of the solution itself.

[0038] By the attached Figure 5As shown, it is a structural schematic diagram of the evaporation component 4 in this embodiment, and the evaporation component 4 also includes an air heater 43, a pressurizing fan 44 and an air filter 45. The air filter 45 is arranged on the side of the second-stage evaporator 41, and the air filter 45 filters the external air. The pressurizing fan 44 is installed on the side of the air filter 45 to pressurize the air filtered inside the air filter 45. The air heater 43 is connected to the side of the pressurizing fan 44 through a pipeline. The air heater 43 heats the pressurized gas and then inputs the rest into the second-stage evaporator 41. During use, the air filter 45 is used to filter the external air, and then the pressurizing fan 44 cooperates to pressurize the air and input it into the air heater 43. Then, the internal air is heated by the operation of the air heater 43, and finally the heated gas is input into the second-stage evaporator 41, which provides convenience for the operation of the second-stage evaporator 41.

[0039] By the attached Figures 1 to 5 As shown, a method for producing industrial ammonium nitrate and porous ammonium nitrate comprises the following steps: For porous ammonium nitrate processing S1, material pretreatment, by sending 96-98% ammonium nitrate solution from the outside to the inside of the first processing chamber 11, and then using the delivery pump body 13 to deliver the solution to the second processing chamber 14, and after mixing with the additive solution from the additive storage chamber 12, the solution is evenly stirred by the stirrer 16 in the delivery pump body 13 and then delivered to the inside of the granulation part 2; S2, granulation processing, the solution input in the above steps enters the granulation component 21, is sprayed out through the granulation nozzle in the granulation component 21, and after heat and mass transfer with the countercurrent rising air to reduce the temperature to 50-60°C, solid ammonium nitrate is gradually formed from the molten liquid, falls into the first conveyor belt 22, and is then transported to the second conveyor belt 23 through the first conveyor belt 22, and the second conveyor belt 23 is then transported to the drying drum 24, and the solid ammonium nitrate is blown and dried by hot air through the drying drum 24, and after drying, it comes out of the drying drum 24, is first sent to the third conveyor belt 25, and then is transported to the bucket elevator 26, and the bucket elevator 26 is lifted and input into the screening mechanism 3; S3, screening treatment, first screen out the finished product of standard particle size through the screener 31, the qualified particle size falls into the plate cooler 33 for cooling, the unqualified particle size returns to the first processing warehouse 11 through the conveying pipe 32, after being stirred and dissolved by the stirrer 16, this kind of solution is sent to granulation with the ammonium nitrate solution, and the temperature of the finished ammonium nitrate after passing through the plate cooler 33 is reduced to below 31°C, and then falls into the fifth conveyor belt 34, and is transported to the wrapping drum 35 through the fifth conveyor belt 34, and after being wrapped with the sprayed wrapping oil in the wrapping drum 35, it is transported to the sixth conveyor belt 36, and finally falls into the finished product silo 37, enters the packaging process, and completes the processing of porous ammonium nitrate; For industrial ammonium nitrate processing S4, cleaning, firstly, the first processing chamber 11 and the second processing chamber 14, the wrapping drum 35, the first conveyor belt 22, the second conveyor belt 23 and other conveyor belts and various equipment for producing porous ammonium nitrate are cleaned; S5, pretreatment, the 96-98% ammonium nitrate liquid sent from the outside is input into the first processing chamber 11, and then transported to the second-stage evaporator 41 through the delivery pump body 13, and the original solution is processed by the operation of the second-stage evaporator 41, evaporated and concentrated to about 99.5%, and then the solution is input into the second processing chamber 14; S6, processing, then the material is input into the granulating component 21, and granulated by the granulating component 21. After granulation, it is conveyed by the first conveyor belt 22 and the second conveyor belt 23, and then transferred to the fourth conveyor belt 27, and then sent to the bucket elevator 26. Then, the material is processed according to the screening process proposed in S3 to complete the processing of industrial ammonium nitrate.

[0040] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as belonging to the scope of protection determined by the claims submitted for the present invention.

Claims

1. A device for producing industrial ammonium nitrate and porous ammonium nitrate, characterized in that: The invention comprises a pretreatment component (1), a granulation component (2), a screening mechanism (3) and an evaporation component (4); the pretreatment component (1) collects and transports industrial ammonium nitrate solution and porous ammonium nitrate solution; the granulation component (2) receives the solution transported by the pretreatment component (1) and processes it into fixed particles; a screening mechanism (3) for screening and wrapping solid particles is arranged on the side of the granulation component (2); the pretreatment component (1) is connected to an evaporation component (4) for processing and exchanging heat for industrial ammonium nitrate through a pipeline.

2. The device for producing industrial ammonium nitrate and porous ammonium nitrate according to claim 1, characterized in that: The pretreatment component (1) comprises a first processing chamber (11), an additive storage chamber (12), a delivery pump body (13) and a second processing chamber (14); the bottom outlet of the first processing chamber (11) is connected to the delivery pump body (13) via a pipeline; the output end of the delivery pump body (13) is connected to the second processing chamber (14) via a pipeline; and the side of the second processing chamber (14) is provided with an additive storage chamber (12) for replenishing the additive solution in the second processing chamber (14).

3. The device for producing industrial ammonium nitrate and porous ammonium nitrate according to claim 1, characterized in that: The pretreatment component (1) further comprises a solution input pipe (15) and a stirrer (16); the solution input pipe (15) is connected to one side of the surface of the first processing chamber (11); and the first processing chamber (11) and the second processing chamber (14) are both equipped with stirrers (16) for stirring the internal solution.

4. The device for producing industrial ammonium nitrate and porous ammonium nitrate according to claim 1, characterized in that: The granulating element (2) comprises a granulating component (21), a first conveyor belt (22), a second conveyor belt (23), a drying drum (24), a third conveyor belt (25) and a bucket elevator (26). The granulating component (21) processes the solution mixed inside the pretreatment component (1). A dedicated granulating nozzle is installed inside the granulating component (21). A first conveyor belt (22) is arranged at the bottom outlet of the granulating component (21). A second conveyor belt (23) is arranged on the side of the first conveyor belt (22). A drying drum (24) for drying the material is arranged on the side of the second conveyor belt (23). A third conveyor belt (25) for conveying the material is arranged on the side of the drying drum (24). A bucket elevator (26) for stably conveying the material is arranged on the side of the third conveyor belt (25).

5. The device for producing industrial ammonium nitrate and porous ammonium nitrate according to claim 4, characterized in that: The granulation component (2) further comprises a fourth conveyor belt (27), wherein the fourth conveyor belt (27) is arranged below the drying drum (24), and when the granulation component (21) processes industrial ammonium nitrate, the fourth conveyor belt (27) is used to stably convey the material.

6. The device for producing industrial ammonium nitrate and porous ammonium nitrate according to claim 1, characterized in that: The screening mechanism (3) comprises a screener (31), a plate-type cooler (33), a fifth conveyor belt (34), a wrapping roller (35), a sixth conveyor belt (36) and a finished product silo (37). The screener (31) is installed on the side of the granulating member (2) to screen the material conveyed by the granulating member (2). The plate-type cooler (33) is arranged at the discharge end of the screener (31). The fifth conveyor belt (34) is arranged at the bottom end of the plate-type cooler (33). The wrapping roller (35) is arranged on the side of the fifth conveyor belt (34). The wrapping roller (35) sprays wrapping oil on the material to wrap it. A finished product silo (37) for storing the processed material is arranged on the side of the sixth conveyor belt (36).

7. The device for producing industrial ammonium nitrate and porous ammonium nitrate according to claim 6, characterized in that: The screening mechanism (3) further comprises a conveying pipeline (32) for unqualified materials after screening, and the conveying pipeline (32) is connected to the pretreatment component (1).

8. The device for producing industrial ammonium nitrate and porous ammonium nitrate according to claim 1, characterized in that: The evaporation component (4) comprises a two-stage evaporator (41) and a steam condensate tank (42); the top of the pretreatment component (1) is provided with a two-stage evaporator (41) for increasing the concentration of the ammonium nitrate solution; and the side of the two-stage evaporator (41) is provided with a steam condensate tank (42) for collecting steam condensate.

9. The device for producing industrial ammonium nitrate and porous ammonium nitrate according to claim 6, characterized in that: The evaporation component (4) further comprises an air heater (43), a pressurizing fan (44) and an air filter (45). The air filter (45) is arranged on the side of the second-stage evaporator (41). The air filter (45) filters external air. The pressurizing fan (44) is installed on the side of the air filter (45) to pressurize the air filtered inside the air filter (45). The air heater (43) is connected to the side of the pressurizing fan (44) through a pipeline. The air heater (43) heats the pressurized gas and then inputs the rest into the second-stage evaporator (41).

10. A method for producing industrial ammonium nitrate and porous ammonium nitrate, using the device for producing industrial ammonium nitrate and porous ammonium nitrate according to any one of claims 1 to 9, characterized in that: The steps include: For porous ammonium nitrate processing S1, material pretreatment, by sending 96-98% ammonium nitrate solution sent from the outside to the inside of the first processing chamber (11), and then using a delivery pump body (13) to transport the solution to the second processing chamber (14), and after mixing with the additive solution from the additive storage chamber (12), the solution is uniformly stirred by a stirrer (16) in the delivery pump body (13) and then transported to the inside of the granulation part (2); S2, granulation processing, the solution input in the above step enters the granulation component (21), is sprayed out through the granulation nozzle in the granulation component (21), and after heat and mass transfer with the countercurrent rising air to reduce the temperature to 50-60°C, solid ammonium nitrate is gradually formed from the molten liquid, falls into the first conveyor belt (22), and is then transported to the second conveyor belt (23) through the first conveyor belt (22), and the second conveyor belt (23) is then transported to the drying drum (24), and the solid ammonium nitrate is blown and dried by hot air through the drying drum (24), and after drying, it exits the drying drum (24), is first sent to the third conveyor belt (25), and then is transported to the bucket elevator (26), and is lifted by the bucket elevator (26) and input into the screening mechanism (3); S3, screening process, firstly, the finished product with standard particle size is screened out by the screener (31), and the particle size with qualified particle size falls into the plate-type cooler (33) for cooling, and the particle size with unqualified particle size returns to the first processing bin (11) through the conveying pipe (32), and after being stirred and dissolved by the stirrer (16), this solution is sent to granulation with the ammonium nitrate solution, and the temperature of the finished ammonium nitrate is reduced to below 31° C. after passing through the plate-type cooler (33), and then falls into the fifth conveyor belt (34), and is transported to the wrapping drum (35) through the fifth conveyor belt (34), and is wrapped with the sprayed wrapping oil in the wrapping drum (35), and then is transported to the sixth conveyor belt (36), and finally falls into the interior of the finished product silo (37), enters the packaging process, and completes the processing of the porous ammonium nitrate; For industrial ammonium nitrate processing S4, cleaning, firstly, cleaning the residual ammonium nitrate in the first processing chamber (11) and the second processing chamber (14), the wrapping roller (35), the first conveyor belt (22), the second conveyor belt (23) and other conveyor belts and various equipment for producing porous ammonium nitrate; S5, pretreatment, inputting the 96-98% ammonium nitrate liquid sent from the outside into the first processing chamber (11), and then transporting it to the second-stage evaporator (41) through the delivery pump body (13), processing the original solution by the operation of the second-stage evaporator (41), evaporating and concentrating it to about 99.5%, and then inputting the solution into the second processing chamber (14); S6, processing, after which the material is input into the granulating component (21), and granulated by the granulating component (21). After granulation, the material is conveyed by the first conveyor belt (22) and the second conveyor belt (23), and then transferred to the inside of the fourth conveyor belt (27), and then sent to the bucket elevator (26). The material is then processed according to the screening process proposed in S3, thereby completing the processing of industrial ammonium nitrate.

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