Quantitative feeding machine for medicinal solid ammonium nitrate for ammonium oil frying

Abstract

The invention relates to a quantitative feeding machine for medicinal solid ammonium nitrate for ammonium oil frying. Comprising a conveying mechanism used for conveying an ammonium nitrate raw material, a packaging mechanism arranged on the outer side of the conveying mechanism and used for packaging ammonium nitrate in a vacuum mode through a material bag, a screening mechanism arranged on the conveying mechanism and used for screening out ammonium nitrate powder, and a crushing mechanism arranged on the conveying mechanism and used for crushing ammonium nitrate blocks into powder. The first feeding mechanism and the second feeding mechanism are arranged between the conveying mechanism and the packaging mechanism, and the first feeding mechanism is matched with the second feeding mechanism to be used for quantitatively feeding ammonium nitrate powder in the screening mechanism and the crushing mechanism into a material bag; the ammonium nitrate powder crushed by the crushing mechanism is wrapped outside the ammonium nitrate powder screened by the screening mechanism; the problems that existing feeding equipment is unreasonable in structure and low in quantitative feeding precision, and ammonium nitrate is prone to caking and uneven in distribution are solved.

Description

Technical Field

[0001] This invention relates to the field of ammonium nitrate quantitative feeding technology, and in particular to a solid ammonium nitrate quantitative feeding machine for ammonium nitrate oil-fried pharmaceuticals. Background Technology

[0002] Ammonium nitrate (ANN) explosives are powdery or granular explosive mixtures, a type of non-ladder explosive. Their main raw materials include ammonium nitrate, diesel fuel, wood flour, and surfactants. They are characterized by good safety, simple processing, and wide application, offering advantages such as ease of machining and on-site mixing. In modern production processes, ammonium nitrate is primarily synthesized from neutralized nitric acid and anhydrous ammonia. Depending on the production process, ammonium nitrate can be prepared in powder, granular, and porous granular forms. Ammonium nitrate has three main characteristics: polycrystalline, hygroscopic, and agglomerating. The large specific surface area and porosity of ammonium nitrate increase its hygroscopicity and agglomeration probability. The moisture content of ammonium nitrate directly affects its storage, use, and transportation, and even its safety performance.

[0003] Patent document CN119349186B discloses an ammonium nitrate packaging device, belonging to the field of ammonium nitrate packaging technology. It includes a roller conveyor, a palletizing robot, and a palletizing platform for stacking bags. The roller conveyor has a baffle slidably connected to its end via a pneumatic strut. A first cylinder is installed at the end of the roller conveyor, with its extension / retraction direction perpendicular to the conveying direction of the roller conveyor. A fixed clamping plate, which is an L-shaped plate with a horizontally hollowed-out portion, is installed at the actuating end of the first cylinder. A movable clamping plate is hinged to the fixed clamping plate via a torsion spring. An arc-shaped plate is installed on the roller conveyor to abut against the movable clamping plate. A linkage is provided between the fixed clamping plate and the baffle to move the baffle away from the bag it is blocking when the first cylinder extends. This application can reduce the probability of ammonium nitrate inside the bag dispersing after being picked up.

[0004] However, in actual production, the inventors found that existing ammonium nitrate is usually fed into packaging using a screw-type quantitative feeding device or storage silo with valve opening and closing. However, due to the hygroscopic and agglomerating properties of solid ammonium nitrate, not only is the packaged ammonium nitrate highly humid and prone to agglomeration, but the feeding equipment is also unreasonable, resulting in low product quality. The ammonium nitrate is unevenly distributed in the packaging bag, which is not convenient for subsequent conveying and transportation. Moreover, it will increase the resistance of the screw conveyor, and the agglomerated material is prone to "pulse discharge", which makes it difficult to control the accuracy of quantitative feeding. In addition, the compression storage of ammonium nitrate in the storage silo will further aggravate agglomeration and easily form a "bridging" phenomenon, which will also cause insufficient quantitative feeding accuracy during feeding. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by incorporating a screening mechanism to directly separate ammonium nitrate powder from the conveying mechanism, reducing energy consumption in the crushing process, optimizing the overall flow, and using a crushing mechanism to pulverize lumpy ammonium nitrate material into powder, thus solving the problem of ammonium nitrate agglomeration, ensuring raw material utilization, and avoiding waste. Furthermore, a first feeding mechanism and a second feeding mechanism quantitatively feed the ammonium nitrate powder into a packaging mechanism for vacuum packaging. The invention features a reasonable structure, high production continuity, and facilitates uniform distribution of ammonium nitrate powder, resulting in high product quality. This solves the problems of unreasonable structure, low quantitative feeding accuracy, and easy agglomeration and uneven distribution of ammonium nitrate in existing feeding equipment.

[0006] To address the above technical problems, the following technical solution is adopted: A solid ammonium nitrate quantitative feeding machine for ammonium nitrate oil-fried pharmaceuticals, comprising: The system includes a conveying mechanism for transporting ammonium nitrate raw materials, a packaging mechanism disposed outside the conveying mechanism and vacuum-packing ammonium nitrate in a material bag, a screening mechanism disposed on the conveying mechanism for screening out ammonium nitrate powder, a crushing mechanism disposed on the conveying mechanism for crushing ammonium nitrate blocks into powder, a first feeding mechanism and a second feeding mechanism disposed between the conveying mechanism and the packaging mechanism, wherein the first feeding mechanism cooperates with the second feeding mechanism to quantitatively feed the ammonium nitrate powder in the screening mechanism and the crushing mechanism into the material bag, and to make the ammonium nitrate powder formed by the crushing mechanism wrap around the ammonium nitrate powder screened by the screening mechanism; The crushing mechanism includes a crushing barrel mounted on the conveying mechanism, a crushing component rotatably mounted inside the crushing barrel, a drying component mounted inside the crushing barrel, and a discharge port that opens and closes on the crushing barrel. When the crushing component, in conjunction with the drying component, crushes and dries the ammonium nitrate blocks inside the crushing barrel, the discharge port opens to discharge the dried ammonium nitrate powder into the second feeding mechanism.

[0007] Preferably, the first feeding mechanism includes a telescopic frame mounted on the conveying mechanism and extending and retracting in the vertical direction, a weighing device mounted on the telescopic frame, a first material hopper mounted on the weighing device, a first opening and closing plate mounted on the lower end of the first material hopper, an adjusting component mounted on the telescopic frame for adjusting the weight of ammonium nitrate powder in the first material hopper, and a vibration component mounted on the first material hopper.

[0008] Preferably, the second feeding mechanism includes a second material barrel sleeved on the outside of the first material barrel, a second opening and closing plate disposed at the lower end of the second material barrel, and a material transfer component disposed on the first material barrel for transferring ammonium nitrate powder in the discharge port to the first material barrel.

[0009] Preferably, the transfer assembly includes a transfer plate telescopically disposed on the first material barrel and having an arc-shaped cross-section, a rotating rod rotatably disposed inside the first material barrel, and a spiral plate spirally disposed on the rotating rod. When the transfer plate extends to below the discharge port and transfers ammonium nitrate powder into the first material barrel, the rotating rod drives the spiral plate to rotate and mix.

[0010] Preferably, the adjustment assembly includes multiple mounting rods that are movable up and down on the telescopic frame, two measuring hoppers that open and close on the mounting rods, and a scraper on the rotating rod. When the mounting rods move upward, causing the two closed measuring hoppers to scoop up the ammonium nitrate powder in the first material bucket, the rotating rod drives the scraper to scrape off the excess ammonium nitrate powder above the measuring hoppers.

[0011] Preferably, the vibration assembly includes a support rod rotatably disposed on the outside of the first material barrel, a striking hammer disposed at the lower end of the support rod, and an elastic element disposed on the first material barrel. The elastic element is used to force the upper end of the support rod to rotate in the direction of the scraper while simultaneously forcing the striking hammer to rotate in the direction of the inner wall of the second material barrel.

[0012] Preferably, the crushing assembly includes a screen disposed inside the crushing barrel, a shaft rotatably disposed inside the crushing barrel, a plurality of crushing rods disposed on the shaft above the screen for crushing ammonium nitrate blocks inside the crushing barrel into powder, and a pusher plate disposed on the shaft below the screen for pushing the ammonium nitrate powder to the discharge port.

[0013] Preferably, the drying assembly includes an air inlet channel formed in the shaft, a plurality of air outlet channels with one end connected to the air inlet channel and the other end extending to the outside of the lower side of each of the crushing rods, and an inlet assembly disposed on the outside of the crushing barrel for introducing hot air into the air inlet channel.

[0014] Preferably, the conveying mechanism includes a conveying pipe inclined in the vertical direction, a feed inlet formed on the upper side of the conveying pipe, a conveying assembly disposed on the outside of the conveying pipe and used to convey ammonium nitrate into the feed inlet, a conveying auger rotatably disposed in the conveying pipe and conveying ammonium nitrate from bottom to top, a first opening formed on the lower side of the conveying pipe and connected to the screening mechanism, and a second opening formed on the upper side of the conveying pipe and connected to the crushing barrel.

[0015] Preferably, the screening mechanism includes a screening barrel connected to the first opening, a sieve plate disposed at the first opening for screening ammonium nitrate powder into the screening barrel, a discharge port disposed on the screening barrel for opening and closing, and a pusher plate rotatably disposed in the screening barrel for pushing ammonium nitrate powder into the discharge port.

[0016] The beneficial effects of this invention are: (1) In this invention, the ammonium nitrate powder in the conveying mechanism is directly separated by setting a screening mechanism, which reduces the energy consumption of the crushing process, optimizes the overall process, and crushes the lumpy ammonium nitrate material into powder in conjunction with the crushing mechanism, which solves the problem of ammonium nitrate agglomeration, ensures the utilization rate of raw materials, avoids waste, and then the first feeding mechanism and the second feeding mechanism are used to quantitatively feed the above-mentioned ammonium nitrate powder into the packaging mechanism for vacuum packaging. The structure is reasonable, the production continuity is high, the ammonium nitrate powder is easy to achieve uniform distribution, and the product quality is high. (2) In this invention, the crushing barrel of the crushing mechanism is set up in conjunction with the crushing component and the drying component is used for synchronous drying during the crushing process to avoid subsequent easy moisture return and clumping, ensure the dryness and flowability of the powder, and ensure the feeding accuracy after the discharge port is opened. At the same time, the first feeding mechanism and the second feeding mechanism feed the material layer by layer, so that the material bag forms a layered packaging. The outer layer of dry ammonium nitrate powder can absorb the moisture of the inner layer of ammonium nitrate powder in time, avoiding the inner layer of ammonium nitrate powder being too moist and easy to clump, and the outer layer of ammonium nitrate powder being too dry and therefore highly sensitive. It can also increase the amount of moisture absorbed by the material bag and increase the storage time. (3) In this invention, a weighing device is set up in conjunction with an adjustment component to detect and adjust the weight of ammonium nitrate powder in the first and second material buckets. The material transfer component is used to transfer a large amount of ammonium nitrate powder in the crushing mechanism to the first material bucket, avoiding material accumulation, ensuring smooth production process, ensuring feeding accuracy, avoiding manual intervention, and at the same time, a telescopic frame is used to allow the first and second material buckets to be inserted into the material bag, preventing the first and second opening plates from opening so that the ammonium nitrate powder can be fed into the material bag to form an inner and outer layered structure, ensuring uniformity and completeness of the wrapping, avoiding powder spillage, and during the feeding process, the vibration component achieves complete feeding through vibration, improving the feeding efficiency and stability. In summary, this equipment has the advantages of reasonable structure, high quantitative feeding accuracy, and the ability to prevent ammonium nitrate from clumping and to distribute it evenly. It is especially suitable for the field of ammonium nitrate quantitative feeding technology. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A perspective view of a solid ammonium nitrate quantitative feeding machine for ammonium nitrate oil-fried pharmaceuticals provided by the present invention.

[0019] Figure 2 A three-dimensional sectional view of a solid ammonium nitrate quantitative feeding machine for ammonium nitrate oil-fried pharmaceuticals provided by the present invention.

[0020] Figure 3 Provided by the present invention Figure 2 A magnified view of a portion of point A in the middle.

[0021] Figure 4 This is a schematic diagram of the crushing mechanism provided by the present invention.

[0022] Figure 5 A cross-sectional view of the crushing mechanism provided by the present invention.

[0023] Figure 6 Provided by the present invention Figure 2 A magnified view of a section at point B.

[0024] Figure 7 The diagram shows the structure of the first feeding mechanism and the second feeding mechanism provided by the present invention.

[0025] Figure 8 A perspective sectional view of the first feeding mechanism and the second feeding mechanism provided for this invention.

[0026] Figure 9 A top view of the first feeding mechanism and the second feeding mechanism provided by the present invention.

[0027] Figure 10 Provided by the present invention Figure 8 Sectional view at point C along the middle.

[0028] Figures 11-12 Provided by the present invention Figure 10 Diagram showing the operation process of the first and second feeding mechanisms. Detailed Implementation

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0030] Example 1 like Figures 1-3As shown, a solid ammonium nitrate metering feeder for ammonium nitrate explosives includes: The system comprises a conveying mechanism 1 for conveying ammonium nitrate raw materials, a packaging mechanism for vacuum packaging ammonium nitrate in a material bag outside the conveying mechanism 1, a screening mechanism 2 for screening out ammonium nitrate powder on the conveying mechanism 1, a crushing mechanism 3 for crushing ammonium nitrate blocks into powder on the conveying mechanism 1, a first feeding mechanism 4 and a second feeding mechanism 5 between the conveying mechanism 1 and the packaging mechanism, wherein the first feeding mechanism 4 cooperates with the second feeding mechanism 5 to quantitatively feed the ammonium nitrate powder in the screening mechanism 2 and the crushing mechanism 3 into the material bag, and to wrap the ammonium nitrate powder formed by the crushing mechanism 3 around the ammonium nitrate powder screened by the screening mechanism 2. The crushing mechanism 3 includes a crushing barrel 31 mounted on the conveying mechanism 1, a crushing component 32 rotatably mounted inside the crushing barrel 31, a drying component 33 mounted inside the crushing barrel 31, and a discharge port 34 that opens and closes on the crushing barrel 31. When the crushing component 32 and the drying component 33 crush and dry the ammonium nitrate blocks inside the crushing barrel 31, the discharge port 34 opens to discharge the dried ammonium nitrate powder into the second feeding mechanism 5.

[0031] In this embodiment, the ammonium nitrate powder in the conveying mechanism 1 is directly separated by the screening mechanism 2, reducing energy consumption in the crushing process, optimizing the overall process, and cooperating with the crushing mechanism 3 to crush the lumpy ammonium nitrate material into powder, solving the problem of ammonium nitrate agglomeration, ensuring the utilization rate of raw materials, and avoiding waste. Furthermore, the first feeding mechanism 4 and the second feeding mechanism 5 are used to quantitatively feed the ammonium nitrate powder into the packaging mechanism for vacuum packaging. The structure is reasonable, the production continuity is high, the ammonium nitrate powder is easy to achieve uniform distribution, and the product quality is high. Moreover, the crushing barrel 31 of the crushing mechanism 3, in conjunction with the crushing component 32, effectively crushes the ammonium nitrate powder. During the process, a drying component 33 is used for simultaneous drying to prevent subsequent moisture absorption and clumping, ensuring the dryness and flowability of the powder, and ensuring the feeding accuracy after the discharge port 34 is opened. At the same time, the first feeding mechanism 4 and the second feeding mechanism 5 feed the powder in layers, forming a layered packaging inside the bag. The outer layer of dry ammonium nitrate powder can absorb the moisture of the inner layer of ammonium nitrate powder in time, preventing the inner layer of ammonium nitrate powder from being too moist and prone to clumping, and also preventing the outer layer of ammonium nitrate powder from being over-dried, which would result in high sensitivity and safety hazards. It can also increase the amount of moisture absorbed by the bag, ensuring the dryness of the internal ammonium nitrate and increasing the storage time.

[0032] In detail, firstly, the screening mechanism 2 screens the ammonium nitrate powder in the ammonium nitrate raw material in the conveying mechanism 1 into the first feeding mechanism 4, and conveys the ammonium nitrate blocks into the crushing barrel 31 of the crushing mechanism 3; then, the crushing barrel 31, together with the crushing component 32, simultaneously dries the ammonium nitrate blocks with the assistance of the drying component 33 during the crushing process, and then discharges the crushed and dried ammonium nitrate powder into the second feeding mechanism 5 through the discharge port 34, until the total weight of the ammonium nitrate powder in the first feeding mechanism 4 and the second feeding mechanism 5 reaches a predetermined value; finally, the first feeding mechanism 4 and the second feeding mechanism 5 simultaneously feed the material into the bag, until the dried ammonium nitrate powder formed in the crushing mechanism 3 is wrapped around the ammonium nitrate powder screened by the screening mechanism 2, and then the packaging mechanism vacuum-packs the ammonium nitrate into a paper bag.

[0033] It should be noted that the packaging mechanism itself and its installation method are existing technologies. It is located directly below the first feeding mechanism 4 and the second feeding mechanism 5. It is not shown in the attached drawings and will not be described in detail here.

[0034] Furthermore, such as Figures 1-2 as well as Figure 7-Figure 8 As shown, the first feeding mechanism 4 includes a telescopic frame 41 mounted on the conveying mechanism 1 and extending and retracting in the vertical direction, a weighing device 42 mounted on the telescopic frame 41, a first material bucket 43 mounted on the weighing device 42, a first opening and closing plate 44 mounted on the lower end of the first material bucket 43, an adjusting component 45 mounted on the telescopic frame 41 for adjusting the weight of ammonium nitrate powder in the first material bucket 43, and a vibration component 46 mounted on the first material bucket 43.

[0035] In this embodiment, by setting up a weighing device 42 in conjunction with an adjusting component 45, the weight of ammonium nitrate powder in the first material bucket 43 is detected and adjusted to ensure feeding accuracy and avoid manual intervention. At the same time, the telescopic frame 41 is used to allow the first material bucket 43 to extend into the material bag, preventing powder spillage when the first opening plate 44 is opened and the vibration component 46 is used to achieve complete feeding, thereby improving the feeding efficiency and stability.

[0036] It should be noted that the weighing device 42 itself and its installation method are existing technologies, and will not be described in detail here.

[0037] Furthermore, such as Figures 1-2 as well as Figures 7-12 As shown, the second feeding mechanism 5 includes a second material barrel 51 sleeved on the outside of the first material barrel 43, a second opening and closing plate 52 opened and closed at the lower end of the second material barrel 51, and a material transfer component 53 disposed on the first material barrel 43 for transferring ammonium nitrate powder in the discharge port 34 to the first material barrel 43.

[0038] In this embodiment, by setting a second material bucket 51 around the outside of the first material bucket 43 and cooperating with the second opening and closing plate 52 to realize material feeding, an inner and outer layered structure of ammonium nitrate powder is formed, ensuring uniformity and completeness of coating. At the same time, since ammonium nitrate is prone to moisture absorption and agglomeration, resulting in a high agglomeration rate, the transfer component 53 is used to transfer a large amount of ammonium nitrate powder in the crushing mechanism 3 to the first material bucket 43 to avoid material accumulation and ensure smooth production process.

[0039] In detail, during use, as ammonium nitrate powder is fed into the first material bucket 43 and the second material bucket 51, the transfer component transfers excess ammonium nitrate powder from the crushing bucket 31 to the first material bucket 43 through the discharge port 34, ensuring a uniform distribution of ammonium nitrate powder in the first material bucket 43 and the second material bucket 51. Then, if the weighing device 42 detects that the weight of the ammonium nitrate powder in the first material bucket 43 and the second material bucket 51 exceeds the limit, the feeding of ammonium nitrate powder stops, allowing the adjusting component 45 to adjust the weight of the ammonium nitrate powder until the weight detected by the weighing device 42 is within the error range. Then, the telescopic frame 41 extends until the first material bucket 43 and the second material bucket 51 are inserted into the material bag on the packaging mechanism, at which point the first opening plate 44 and the second opening plate 52 open. Finally, during the retraction of the telescopic frame 41, the vibration component 46 vibrates to achieve complete feeding of the first material bucket 43 and the second material bucket 51, and the ammonium nitrate powder in the first material bucket 43 and the second material bucket 51 automatically falls into the material bag, achieving layered feeding.

[0040] It should be noted that the specific opening and closing structure of the first opening and closing plate 44 and the second opening and closing plate 52 is not limited. The following is only one structure for reference. For example, the first opening and closing plate 44 and the second opening and closing plate 52 are rotatably mounted on the first material barrel 43 and the second material barrel 51, respectively. The first opening and closing plate 44 is connected to the second opening and closing plate 52 through the linkage rod 54. Thus, the opening and closing of the first opening and closing plate 44 and the second opening and closing plate 52 can be simultaneously driven by a single drive structure set outside the second material barrel 51.

[0041] Furthermore, such as Figures 7-12 As shown, the material transfer assembly 53 includes a material transfer plate 531 with an arc-shaped cross-section that is telescopically disposed on the first material barrel 43, a rotating rod 532 that is rotatably disposed inside the first material barrel 43, and a spiral plate 533 that is spirally disposed on the rotating rod 532. When the material transfer plate 531 extends to below the discharge port 34 and transfers the ammonium nitrate powder into the first material barrel 43, the rotating rod 532 drives the spiral plate 533 to rotate and mix.

[0042] In this embodiment, the material transfer plate 531 with an arc-shaped structure and expandable extension is set to prevent material from scattering and realize the material transfer work. At the same time, the rotating rod 532 drives the spiral plate 533 to rotate, thereby generating axial propulsion and radial tumbling of the ammonium nitrate powder in the first material bucket 43, and performing forced mixing. This uniformly mixes the ammonium nitrate powder with different humidity, avoids uneven local humidity, avoids clumping, and avoids "bridging" phenomenon during material discharge, making it easier to achieve complete material discharge.

[0043] It should be noted that there are multiple transfer plates 531, which are telescopically mounted on the first material hopper 43. Some of the transfer plates 531 are used to transfer the ammonium nitrate powder in the discharge port 34 to the first material hopper 43, while the other transfer plates 531 are used to transfer the ammonium nitrate powder in the discharge port 34 to various parts of the second material hopper 51, thereby improving the uniformity of material feeding and preventing the material from accumulating in one place in the second material hopper 51.

[0044] Furthermore, such as Figures 7-12 As shown, the adjusting assembly 45 includes multiple mounting rods 451 that are movably mounted on the telescopic frame 41, two measuring hoppers 452 that are open and closed on the mounting rods 451, and a scraper 453 mounted on the rotating rod 532. When the mounting rods 451 move upward, causing the two closed measuring hoppers 452 to scoop up the ammonium nitrate powder in the first material bucket 43, the rotating rod 532 drives the scraper 453 to scrape off the excess ammonium nitrate powder above the measuring hoppers 452.

[0045] In this embodiment, by setting up an up-and-down movable mounting rod 451 in conjunction with an opening and closing measuring hopper 452 and a rotating scraper 453, the ammonium nitrate powder in the first material bucket 43 is scooped up, leveled, and then fixedly measured and adjusted before being fed into the measuring hopper 452, thereby achieving the adjustment of the ammonium nitrate powder in the first material bucket 43.

[0046] In detail, during use, the mounting rod 451 moves downward to extend the closed measuring hopper 452 into the first material bucket 43 until the ammonium nitrate powder is fed into the first material bucket 43. Then, the mounting rod 451 moves upward to scoop up the ammonium nitrate powder. Then, the mounting rod 451 moves upward until the upper surface of the first material bucket 43 contacts the scraper 453. The scraper 453 rotates to scrape off the excess ammonium nitrate powder, so that the ammonium nitrate powder is measured quantitatively in the measuring hopper 452. Finally, the measuring hoppers 452 on each mounting rod 451 are gradually opened until the weighing device 42 detects that the weight is within the error range. After adjustment, the remaining measuring hoppers 452 are not opened. Before the next feeding, the ammonium nitrate powder in the measuring hopper 452 is put into the first material bucket 43 and mixed by the spiral plate 533.

[0047] It should be noted that the lower end of the two measuring hoppers 452 after closing is a conical structure, which facilitates material discharge after the two hoppers are opened. The volume of the two measuring hoppers 452 after closing is 30-50 cm³, to ensure that the quality adjustment of ammonium nitrate powder is within the error range.

[0048] Furthermore, such as Figure 7-Figure 8 As shown, the vibration assembly 46 includes a support rod 461 rotatably disposed on the outside of the first material barrel 43, a striking hammer 462 disposed at the lower end of the support rod 461, and an elastic member disposed on the first material barrel 43. The elastic member is used to force the upper end of the support rod 461 to rotate in the direction of the scraper 453, while forcing the striking hammer 462 to rotate in the direction of the inner wall of the second material barrel 51.

[0049] In this embodiment, by setting an elastic element in conjunction with the scraper 453, the automatic rotation of the control support rod 461 is achieved, which enables the hammer 462 to strike and vibrate the second material barrel 51. This avoids setting an additional drive source, reduces equipment costs, and achieves a vibration effect. This facilitates the feeding of materials into the first material barrel 43 and the second material barrel 51, and also vibrates the ammonium nitrate powder in the first material barrel 43 and the second material barrel 51 to improve the flatness of the powder and enhance the wrapping effect of the subsequent layered packaging.

[0050] It should be noted that the number of support rods 461 is preferably multiple, and correspondingly, multiple hammers 462 and elastic elements are provided; the number of scrapers 453 is multiple, and the end of the scraper 453 away from the rotating rod 532 is a curved structure. This not only enables the support rods 461 to rotate quickly, increasing the striking speed and vibration effect, but also improves the scraping efficiency of excess ammonium nitrate powder above the measuring hopper 452; in addition, the elastic element itself and the installation method are existing technologies and are not shown in the attached drawings, so they will not be described in detail here.

[0051] Furthermore, such as Figures 2-5 As shown, the crushing assembly 32 includes a screen 321 disposed inside the crushing barrel 31, a shaft 322 rotatably disposed inside the crushing barrel 31, a plurality of crushing rods 323 disposed on the shaft 322 above the screen 321 for crushing ammonium nitrate blocks inside the crushing barrel 31 into powder, and a pusher plate 324 disposed on the shaft 322 below the screen 321 for pushing the ammonium nitrate powder to the discharge port 34.

[0052] In this embodiment, by setting the screen 321 to separate qualified ammonium nitrate powder in real time during the crushing process driven by the shaft 322 to the crushing rod 323, the unqualified particles continue to remain above the screen 321 for crushing. At the same time, the pusher plate 324 can push the screened qualified ammonium nitrate powder into the discharge port 34 for discharge, and avoid material accumulation interfering with the screening of the screen 321.

[0053] Furthermore, such as Figures 3-5As shown, the drying assembly 33 includes an air inlet channel 331 formed in the shaft 322, a plurality of air outlet channels 332 with one end connected to the air inlet channel 331 and the other end extending to the outside of the lower side of each crushing rod 323, and an inlet assembly disposed on the outside of the crushing barrel 31 for introducing hot air into the air inlet channel 331.

[0054] In this embodiment, hot air is introduced into the air inlet channel 331 by setting an inlet component, so that the hot air is sprayed out from the air outlet channel 332 on the lower side of the crushing rod 323. This allows the hot air to act directly on the freshly crushed ammonium nitrate powder, resulting in high moisture evaporation efficiency. The centrifugal force of the rotating crushing rod 323 accelerates the diffusion of hot air, improving the uniformity of drying. It also prevents ammonium nitrate powder from entering the air outlet channel 332 and causing blockage. Furthermore, the downward sprayed hot air can clear the screen 321, preventing blockage and caking. At the same time, it continuously dries the ammonium nitrate powder below the screen 321, resulting in good drying effect.

[0055] It should be noted that the inlet assembly is connected to the air intake channel 331 via a rotary joint 333, and the inlet assembly itself and its installation method for introducing hot air are existing technologies, which are not shown in the attached drawings and will not be described in detail here.

[0056] Furthermore, such as Figures 1-2 As shown, the conveying mechanism 1 includes a conveying pipe 11 inclined in the vertical direction, a feed inlet 12 formed on the upper side of the conveying pipe 11, a conveying assembly 13 disposed on the outside of the conveying pipe 11 for conveying ammonium nitrate into the feed inlet 12, a conveying auger 14 rotatably disposed in the conveying pipe 11 for conveying ammonium nitrate from bottom to top, a first opening 15 formed on the lower end of the conveying pipe 11 and connected to the screening mechanism 2, and a second opening 16 formed on the upper end of the lower end of the conveying pipe 11 and connected to the crushing barrel 31.

[0057] In this embodiment, the ammonium nitrate raw material is directly conveyed to the inclined conveying pipe 11 through the feed inlet 12 by the conveying component 13. The ammonium nitrate raw material automatically moves down to the first opening 15 and is screened out as ammonium nitrate powder by the screening mechanism 2. The conveying auger 14 then conveys the ammonium nitrate blocks obliquely upward to the second opening 16 and into the crushing barrel 31 for crushing, thereby realizing the automatic classification of raw materials. The ammonium nitrate powder is directly screened by the screening mechanism 2, which has a good screening effect and avoids the energy waste caused by its conveying and crushing process. The ammonium nitrate blocks are processed by the crushing mechanism 3 to improve the crushing efficiency. When the crushing mechanism 3 is dried by the air through the drying component 33, the dust formed is located inside the upper end of the conveying pipe 11, which avoids dust leakage.

[0058] It should be noted that the conveying component 13 can be a conveyor belt. The conveying component 13 and the conveying auger 14 themselves and their installation methods are all existing technologies and will not be described in detail here.

[0059] Furthermore, such as Figures 1-2 as well as Figure 6 As shown, the screening mechanism 2 includes a screening barrel 21 connected to the first opening 15, a screen plate 22 disposed at the first opening 15 for screening ammonium nitrate powder into the screening barrel 21, a discharge port 23 disposed on the screening barrel 21 for opening and closing, and a pusher plate 24 rotatably disposed in the screening barrel 21 for pushing ammonium nitrate powder into the discharge port 23.

[0060] In this embodiment, by setting the sieve plate 22 to separate ammonium nitrate powder in real time during the conveying process of the conveying mechanism 1, the unqualified particles continue to be conveyed until they enter the crushing mechanism 3. At the same time, the push plate 24 can not only push the sieved ammonium nitrate powder to the discharge port 23 for discharge, but also has a stirring function to prevent the material from clumping and to prevent the material from accumulating and interfering with the sieving of the screen 321.

[0061] It should be noted that the number of pusher plates 324 and pusher plates 24 is preferably multiple, which improves the mixing effect and the discharge speed, thereby increasing production efficiency.

[0062] Work process: First, during the process of conveying ammonium nitrate raw material, the screening mechanism 2 screens the ammonium nitrate powder in the ammonium nitrate raw material into the first feeding mechanism 4, and then the conveying mechanism 1 conveys the ammonium nitrate block in the ammonium nitrate raw material into the crushing barrel 31 of the crushing mechanism 3; Next, the crushing barrel 31, together with the crushing component 32, is simultaneously dried by the drying component 33 during the crushing of the ammonium nitrate block. Then, the dried ammonium nitrate powder formed is discharged into the second feeding mechanism 5 through the discharge port 34 until the total weight of the ammonium nitrate powder in the first feeding mechanism 4 and the second feeding mechanism 5 reaches the predetermined value. Finally, the first feeding mechanism 4, together with the second feeding mechanism 5, simultaneously feeds material into the bag until the dry ammonium nitrate powder formed in the crushing mechanism 3 is wrapped around the outside of the ammonium nitrate powder screened by the screening mechanism 2. Then, the packaging mechanism vacuum-packs the ammonium nitrate into a paper bag.

[0063] In the description of this invention, it should be understood that the terms "front and back", "left and right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0064] Of course, those skilled in the art should understand that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be understood as a limitation on the quantity.

[0065] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art under the technical guidance of the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A quantitative feeding machine for solid ammonium nitrate used in ammonium nitrate frying pharmaceuticals, characterized in that, include: The system includes a conveying mechanism for transporting ammonium nitrate raw materials, a packaging mechanism disposed outside the conveying mechanism and vacuum-packing ammonium nitrate in a material bag, a screening mechanism disposed on the conveying mechanism for screening out ammonium nitrate powder, a crushing mechanism disposed on the conveying mechanism for crushing ammonium nitrate blocks into powder, a first feeding mechanism and a second feeding mechanism disposed between the conveying mechanism and the packaging mechanism, wherein the first feeding mechanism cooperates with the second feeding mechanism to quantitatively feed the ammonium nitrate powder in the screening mechanism and the crushing mechanism into the material bag, and to make the ammonium nitrate powder formed by the crushing mechanism wrap around the ammonium nitrate powder screened by the screening mechanism; The crushing mechanism includes a crushing barrel mounted on the conveying mechanism, a crushing component rotatably mounted inside the crushing barrel, a drying component mounted inside the crushing barrel, and a discharge port that opens and closes on the crushing barrel. When the crushing component, in conjunction with the drying component, crushes and dries the ammonium nitrate blocks inside the crushing barrel, the discharge port opens to discharge the dried ammonium nitrate powder into the second feeding mechanism.

2. The solid ammonium nitrate quantitative feeding machine for ammonium nitrate explosives according to claim 1, characterized in that, The first feeding mechanism includes a telescopic frame mounted on the conveying mechanism and extending and retracting in the vertical direction, a weighing device mounted on the telescopic frame, a first material hopper mounted on the weighing device, a first opening and closing plate mounted on the lower end of the first material hopper, an adjusting component mounted on the telescopic frame for adjusting the weight of ammonium nitrate powder in the first material hopper, and a vibration component mounted on the first material hopper.

3. The solid ammonium nitrate quantitative feeding machine for ammonium nitrate explosives according to claim 2, characterized in that, The second feeding mechanism includes a second material barrel sleeved on the outside of the first material barrel, a second opening and closing plate disposed at the lower end of the second material barrel, and a material transfer component disposed on the first material barrel for transferring ammonium nitrate powder in the discharge port to the first material barrel.

4. The solid ammonium nitrate quantitative feeding machine for ammonium nitrate explosives according to claim 3, characterized in that, The material transfer assembly includes a transfer plate telescopically mounted on the first material barrel with an arc-shaped cross-section, a rotating rod rotatably mounted inside the first material barrel, and a spiral plate spirally mounted on the rotating rod. When the transfer plate extends to below the discharge port and transfers ammonium nitrate powder into the first material barrel, the rotating rod drives the spiral plate to rotate and mix.

5. The solid ammonium nitrate quantitative feeding machine for ammonium nitrate explosives according to claim 4, characterized in that, The adjustment assembly includes multiple mounting rods that are movable up and down on the telescopic frame, two measuring hoppers that open and close on the mounting rods, and a scraper on the rotating rod. When the mounting rod moves upward, causing the two closed measuring hoppers to scoop up the ammonium nitrate powder in the first material bucket, the rotating rod drives the scraper to scrape off the excess ammonium nitrate powder above the measuring hoppers.

6. The solid ammonium nitrate quantitative feeding machine for ammonium nitrate explosives according to claim 5, characterized in that, The vibration assembly includes a support rod rotatably disposed on the outside of the first material barrel, a striking hammer disposed at the lower end of the support rod, and an elastic element disposed on the first material barrel. The elastic element is used to force the upper end of the support rod to rotate in the direction of the scraper while forcing the striking hammer to rotate in the direction of the inner wall of the second material barrel.

7. The solid ammonium nitrate quantitative feeding machine for ammonium nitrate explosives according to claim 1, characterized in that, The crushing assembly includes a screen disposed inside the crushing barrel, a shaft rotatably disposed inside the crushing barrel, a plurality of crushing rods disposed on the shaft above the screen for crushing ammonium nitrate blocks inside the crushing barrel into powder, and a pusher plate disposed on the shaft below the screen for pushing the ammonium nitrate powder to the discharge port.

8. A solid ammonium nitrate quantitative feeding machine for ammonium nitrate explosives according to claim 7, characterized in that, The drying assembly includes an air inlet channel formed in the shaft, a plurality of air outlet channels with one end connected to the air inlet channel and the other end extending to the outside of the lower side of each of the crushing rods, and an inlet assembly disposed on the outside of the crushing barrel for introducing hot air into the air inlet channel.

9. A quantitative feeding machine for solid ammonium nitrate used in ammonium nitrate frying pharmaceuticals according to claim 1, characterized in that, The conveying mechanism includes a conveying pipe inclined in the vertical direction, a feed inlet formed on the upper side of the conveying pipe, a conveying assembly disposed on the outside of the conveying pipe for conveying ammonium nitrate into the feed inlet, a conveying auger rotatably disposed in the conveying pipe for conveying ammonium nitrate from bottom to top, a first opening formed on the lower side of the conveying pipe and connected to the screening mechanism, and a second opening formed on the upper side of the conveying pipe and connected to the crushing barrel.

10. A solid ammonium nitrate quantitative feeding machine for ammonium nitrate explosives according to claim 9, characterized in that, The screening mechanism includes a screening barrel connected to the first opening, a sieve plate disposed at the first opening for screening ammonium nitrate powder into the screening barrel, a discharge port disposed on the screening barrel for opening and closing, and a pusher plate rotatably disposed in the screening barrel for pushing ammonium nitrate powder into the discharge port.

Images