A method for granulating fireworks pellets and a disk granulator

Abstract

The present invention discloses a method for granulating fireworks bright beads and a disk granulator. The method for granulating fireworks bright beads is realized by the disk granulator. The disk granulator includes a first disk for material granulation and a second disk for polishing the formed particles. The second disk is coaxially arranged with the first disk, and the diameter of the second disk is smaller than that of the first disk. A storage cylinder is arranged outside the first disk, and the storage cylinder communicates the second disk with the first disk. The disk granulator in the present invention is improved on the basis of the existing disk granulator. A second disk with a small diameter is added to the first disk, and the second disk can rotate synchronously with the first disk. At the same rotation speed, the formed particles are more gently stressed in the second disk, and the polishing work of the bright bead formed particles can be realized. The granulation work and the polishing work of the bright bead particles can be carried out simultaneously, realizing the continuous granulation work and polishing work of the bright beads, and the processing efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of fireworks production equipment, and in particular to a fireworks bright bead granulation method and a disc granulator. Background Art

[0002] As the core component of fireworks products, the quality of fireworks beads directly affects the effect of fireworks. Traditionally, disc granulators are used to produce bright beads. The disc granulator rotates to make the materials inside the disc roll and collide, gradually forming particles.

[0003] The roundness of bright beads is one of the key indicators. Insufficient roundness will lead to unstable trajectory and unsatisfactory effect during firing. Therefore, the bright beads need to be polished after granulation to improve the roundness. When the disc bright beads are granulated, high-speed rotation (normal speed is 15-25rpm) is required to achieve rapid granulation of the material. When polishing the bright beads, the speed of the disc needs to be reduced (normal speed is 5-10rpm). The particles inside the disc are mainly "rolling" to reduce falling and violent collisions, so as to achieve round particles. Therefore, a disc granulator can only perform granulation or polishing work alone. The granulation and polishing of the bright beads cannot be carried out at the same time, and the production efficiency is low; if granulation and polishing are carried out at the same time, two disc granulation equipment need to be configured, which increases the investment cost of the production equipment. Summary of the invention

[0004] The present invention proposes a disc granulator to balance the granulation work and polishing work of the disc granulator in the prior art. Two discs are arranged on the existing disc granulator. The two discs can perform granulation and polishing work respectively, thereby improving the granulation efficiency of bright beads.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A disc granulator comprises a first disc for granulating materials, a first motor for driving the first disc to tilt, and a second motor for driving the first disc to rotate, wherein the output end of the first motor is connected to a connection seat, and the first disc and the second motor are both mounted on the connection seat. The forming granulation device also comprises a second disc for polishing the formed particles, the second disc is coaxially arranged with the first disc, the diameter of the second disc is smaller than the diameter of the first disc, and the second end of the second disc is rotatably connected to the sealing end surface of the first disc.

[0007] A storage cylinder is arranged on the outside of the first disc, and the storage cylinder is arranged coaxially with the first disc. The first end face of the storage cylinder is rotatably sleeved on the outside of the second disc and forms a seal with the second disc. The second end face of the storage cylinder is arranged on the first end face of the storage cylinder, and a material channel is formed between the inner edge of the first baffle ring and the outer edge of the first disc, and the formed particles inside the first disc enter the interior of the storage cylinder from the material channel.

[0008] A feed channel and a feed baffle for opening and closing the feed channel are provided on the side surface of the second disc. The feed channel communicates with the internal space of the storage cylinder and the internal space of the second disc. The feed baffle is connected to the second disc through an elastic connection assembly. The elastic connection assembly is used to form a normally closed state of the feed channel. A third functional cylinder is provided on the fixed sleeve. The third functional cylinder is used to push the feed baffle to form an open state of the feed channel.

[0009] The above-mentioned storage cylinder includes a movable sleeve and a fixed sleeve arranged coaxially. A push plate is arranged inside the storage cylinder. The push plate is fixedly connected to the movable sleeve. The push plate is used to rotate with the movable sleeve to push the formed particles inside the storage cylinder, so as to realize that the formed particles inside the storage cylinder enter the inside of the second disc through the feed channel.

[0010] Preferably, a second retaining ring is further provided between the first retaining ring and the first disc. The second retaining ring is used to partially seal the material channel. The formed particles enter the second disc at the sealing position of the second retaining ring.

[0011] Preferably, the first end face of the storage cylinder is connected to the axial middle part of the second disc. The first part of the second disc is located inside the storage cylinder, and the second part of the second disc is located outside the storage cylinder. An outlet channel is further provided on the second disc. The outlet channel is located in the second part of the second disc, and the feed channel is located in the first part of the second disc.

[0012] Preferably, the sealing end face of the first disc is rotatably connected to the third bracket on the connecting seat through a second shaft body. The second shaft body is connected to the output shaft of the second motor. The first end of the second disc is provided with a mating surface. A first mating plate is sleeved on the second shaft body. The first mating plate is axially slidably connected to the second shaft body. The first mating plate is arranged opposite to the mating surface. The end face of the first mating plate is provided with a first rotating plate rotatably connected to the first mating plate. The first rotating plate is connected to the third bracket on the connecting seat through a first functional cylinder. The first functional cylinder is used to drive the first mating plate to move axially to realize the combination or separation between the first mating plate and the mating surface. The first mating plate realizes the synchronous rotation of the second disc following the second shaft body by combining with the mating surface.

[0013] Preferably, the movable sleeve is rotatably connected to the fixed sleeve coaxially. The fixed sleeve is fixedly connected to the third bracket. A gear ring is fixedly sleeved outside the movable sleeve. A third wheel body meshing with the gear ring is provided on the third bracket.

[0014] Preferably, a third shaft body is provided on the third support. The third shaft body and the second shaft body are connected by a synchronous belt to achieve synchronous rotation. A second bonding plate is sleeved on the third shaft body. The second bonding plate is axially slidably connected to the third shaft body. A second rotating plate rotatably connected to the second bonding plate is provided on the end face of the second bonding plate. The second rotating plate is connected to the third support by a second functional cylinder. The second bonding plate and the third wheel body are coaxially arranged. The third wheel body is fixedly connected to a third bonding plate through a fourth shaft body. The third bonding plate and the second bonding plate are oppositely arranged. The second functional cylinder is used to drive the second bonding plate to move axially to achieve the bonding or separation between the second bonding plate and the third bonding plate. The second bonding plate rotates with the third shaft body by bonding to the third bonding plate.

[0015] Preferably, the elastic connection assembly includes a cylinder body. The cylinder body is fixedly connected to the guide sleeve. The guide sleeve is coaxially and fixedly sleeved outside the second disc. A piston, an elastic member, and one end of a piston rod are arranged inside the cylinder body. The elastic member is located between the piston and the cylinder body to keep the first end of the piston in contact with the cylinder body. One end of the piston rod is fixedly connected to the second end of the piston. The other end of the piston rod penetrates through the cylinder body and the second disc and is fixedly connected to the feed baffle.

[0016] Preferably, the disc granulator further includes a second support. The second support is fixedly connected to the first shaft body. The first shaft body is fixedly connected to the output end of the first motor. The second retaining ring is fixedly connected to the second support. The movable sleeve is rotatably connected to the second support.

[0017] Preferably, the disc granulator further includes a first support. The first motor is fixedly connected to the first support. A counterweight is arranged on the first support.

[0018] Preferably, the disc granulator is provided with a fourth support and a raw material feeding device. One end of the fourth support extends above the first disc. The part of the fourth support extending above the first disc is used to install a spraying member. The spraying member is used to spray water mist in the water and powder on the first disc. The raw material feeding device is used for feeding raw material powder onto the first disc.

[0019] The present invention also proposes a method for granulating fireworks bright beads, which is applied to the above disc granulator. The method for granulating fireworks bright beads includes the following steps:

[0020] S1: Put the raw material powder of fireworks bright bead particles and auxiliary particles into the first disc of the disc granulator, and spray water mist into the first disc. The first disc rotates in an inclined state to achieve the granulation of the raw material powder. The auxiliary particles are core particles, and the particle size of the auxiliary particles is smaller than the target particle size of the fireworks bright beads.

[0021] S2: After the fireworks bright beads reach the target particle size, they overflow from the first disc. The control factors for the target particle size of the fireworks bright beads include but are not limited to the inclination angle of the first disc, the rotation speed of the disc, and the water-powder ratio.

[0022] S3: Polish the overflowing fireworks pellets inside the second disk.

[0023] Preferably, the core particles include small particle pellets.

[0024] The beneficial effects of the present invention are as follows:

[0025] This disk granulator is improved on the basis of the existing disk granulator. The first disk is used for granulation, and a second disk with a small diameter is added on the first disk. The second disk can rotate synchronously with the first disk. At the same rotation speed, the formed particles are more gently stressed inside the second disk, and the polishing of the pellet formed particles can be realized. The second disk of this disk granulator can utilize the granulation rotation power to realize the polishing of the pellet formed particles, saving power. The granulation work and polishing work of the pellet particles can be carried out simultaneously, realizing the continuous granulation work and polishing work of the pellets, and the processing efficiency is high.

[0026] This disk granulator is provided with a storage cylinder outside the first disk. The storage cylinder can store the formed particles obtained by the first disk and can feed the formed particles at the same time, so that the formed particles enter the second disk for polishing. The storage cylinder can simultaneously carry out the storage work and feeding work of the pellet formed particles, with a simple structure and practical functions.

[0027] This method for granulating fireworks pellets is realized by a disk granulator. By adjusting parameters such as the tilt angle, rotation speed, and water-powder ratio of the first disk, pellets that meet the target particle size and have uniform particles can be obtained. The manufacturing process is simple; after the pellet particles reach the target particle size, they can automatically overflow from the first disk, and the raw material powder of the fireworks pellet particles is continuously fed to maintain continuous granulation work, which is suitable for large-scale and high-efficiency production.

[0028] Core particles are incorporated into the first disk in this method for granulating fireworks pellets. During the granulation process, the raw material powder of the fireworks pellet particles can wrap around the surface of the core particles to form particles, improving the formation efficiency of the pellet particles. Description of the Drawings

[0029] Figure 1 is the step diagram of this method for granulating fireworks pellets;

[0030] Figure 2 is the structural schematic diagram of this disk granulator;

[0031] Figure 3 is the structural schematic diagram of the front of this disk granulator (removing the spraying part);

[0032] Figure 4 is the structural schematic diagram of the disk part of this disk granulator;

[0033] Figure 5It is a schematic structural view of the partial section of the disk of this disk granulator;

[0034] Figure 6 It is a schematic structural view of the disk part (removing the storage cylinder) of this disk granulator;

[0035] Figure 7 It is a schematic structural view of the storage cylinder part of this disk granulator;

[0036] Figure 8 It is a schematic structural view of the cross-section at A-A of the disk part of this disk granulator;

[0037] Figure 9 It is a schematic structural view of the cross-section at B-B on the A-A cross-section of the disk part of this disk granulator;

[0038] Figure 10 It is a schematic structural view of the position C on the A-A cross-section of the disk part of this disk granulator;

[0039] Figure 11 It is a schematic structural view when the bright bead forming particles enter the second disk of this disk granulator;

[0040] Figure 12 It is a schematic structural view when the bright bead forming particles finish entering the second disk of this disk granulator.

[0041] In the figure: 1. First support; 2. First disk; 3. Second disk; 4. Storage cylinder; 5. First retaining ring; 6. Second retaining ring; 7. Stock storage space; 8. Guide sleeve; 9. Gear ring; 10. First motor; 11. First shaft body; 12. Second shaft body; 13. Second motor; 14. Second support; 15. Connecting seat; 16. First bonding plate; 17. First functional cylinder; 18. First wheel body; 19. Second wheel body; 20. Synchronous belt; 21. Third shaft body; 22. Third wheel body; 23. Second bonding plate; 24. Second functional cylinder; 25. Third support; 26. Forming particles; 27. Fourth support; 28. Spraying part;

[0042] 101. Fixed seat; 102. Counterweight; 31. Feed baffle; 32. Elastic connection component; 33. Gap; 34. Feed channel; 35. Discharge channel; 36. Joint surface; 321. Cylinder body; 322. Piston; 323. Piston rod; 324. Elastic member; 41. Movable sleeve; 42. Fixed sleeve; 43. Pushing plate; 44. Third functional cylinder; 441. Contact plate; 141. Support sleeve; 161. First rotating plate; 221. Fourth shaft body; 231. Second rotating plate. Detailed implementation manners

[0043] 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 of the embodiments.

[0044] Referring to Figure 2-3 , the disk granulator in this embodiment includes a first bracket 1. A first motor 10 is fixedly arranged on the first bracket 1. The output shaft of the first motor 10 is fixedly connected to a first shaft body 11. A fixing seat 101 is arranged on the upper part of the first bracket 1. The first shaft body 11 penetrates through the fixing seat 101 and is rotatably connected to the fixing seat 101. The fixing seat 101 is used to support the first shaft body 11. A connecting seat 15 is fixedly connected to the end of the first shaft body 11. A first disk 2 for granulation and a second motor 13 are installed on the connecting seat 15. The second motor 13 is used to drive the first disk 2 to rotate. A counterweight 102 is also arranged on the first bracket 1. The counterweight 102 can increase the weight of the first bracket 1 and improve the stability of the equipment.

[0045] The disk granulator is also equipped with a raw material feeding device (not shown), an auxiliary material feeding device (not shown), and a fourth bracket 27. One end of the fourth bracket 27 extends above the first disk 2. The part of the fourth bracket 27 extending above the first disk 2 is used to install a spraying member 28. The spraying member 28 is used to spray liquid on the materials inside the first disk 2. In this embodiment, the spraying member 28 is a nozzle, and the nozzle is connected to a box filled with water, and the nozzle can spray water mist. The raw material feeding device is an activated hopper. The discharge port of the activated hopper is located above the first disk 2 and is used for feeding the bright bead particle raw material powder onto the first disk 2. The auxiliary material feeding device is a screw feeding device. The discharge port of the screw feeding device extends above the first disk 2 and is used to assist in feeding the particles onto the first disk 2. The auxiliary material feeding device is generally used for feeding small particles such as cement cores. If the small bright beads are auxiliary particles, then the small bright beads are generally the bright bead particles that did not reach the target particle size during the previous granulation and remained inside the first disk 2.

[0046] The first disk 2 is filled with bright bead particle raw material powder. The bright bead particle raw material powder is a raw material mixture for forming bright beads in the prior art. After the bright bead particle raw material powder enters the first disk 2, it contacts the water mist to form a wet material. The first disk 2 is inclined and rotates. The wet material can wrap around the surface of the auxiliary particles. The auxiliary particles roll under the action of centrifugal force and gravity. The wet material on the surface of the auxiliary particles is wrapped and thickened layer by layer. When the particles reach the target size, formed particles 26 are obtained. Due to the action of gravity and centrifugal force, the formed particles 26 will gradually move towards the edge of the first disk 2 and automatically discharge from the edge of the first disk 2.

[0047] The above-mentioned first motor 10 drives the first shaft body 11 to rotate, causing the first disc 2 to tilt. The second motor 13 drives the first disc 2 to rotate, realizing the tilting and rotating movement of the first disc 2. The tilting angle and rotating speed of the first disc 2 can be adjusted according to production requirements. Different tilting angles and rotating speeds of the first disc 2 can produce bright bead particles with different particle sizes.

[0048] Reference Figure 4 and Figure 5 As shown in the figure, a second disc 3 is further provided on the above-mentioned connecting seat 15. The first disc 2, the second disc 3 and the output shaft of the second motor 13 are coaxially arranged. The second disc 3 is located between the first disc 2 and the second motor 13. The second end of the first disc 2 is open, and the raw material powder of the bright bead particles enters the first disc 2 from this opening. The first end of the first disc 2 is rotatably connected to the second end of the second disc 3. The first end of the first disc 2 is a sealed end face, and the sealed end face can seal the second end of the second disc 3. The first end of the second disc 3 and the connecting seat 15 are rotatably connected through a slewing bearing.

[0049] Furthermore, a third bracket 25 is provided on one side of the connecting seat 15. The second motor 13 is fixedly connected to the third bracket 25. One end of the output shaft of the second motor 13 is fixedly connected to one end of the second shaft body 12. The other end of the second shaft body 12 penetrates through the connecting seat 15 and the second disc 3 and is fixedly connected to the first disc 2. The second motor 13 can realize the rotating movement of the first disc 2 by driving the second shaft body 12 to rotate.

[0050] A joint surface 36 is provided at the first end of the above-mentioned second disc 3. A first joint plate 16 is movably sleeved on the second shaft body 12. The first joint plate 16 and the second shaft body 12 are connected by splines, and the first joint plate 16 can slide axially on the second shaft body 12. The first joint plate 16 is arranged opposite to the joint surface 36. A first rotating plate 161 is provided on the end face of the first joint plate 16. The first rotating plate 161 is rotatably connected to the first joint plate 16. The first rotating plate 161 is connected to the third bracket 25 through a first functional cylinder 17. The axis of the first functional cylinder 17 is parallel to the axis of the second shaft body 12. The first functional cylinder 17 is used to drive the first joint plate 16 to move axially, realizing the combination or separation between the first joint plate 16 and the joint surface 36.

[0051] When the first joint plate 16 is separated from the joint surface 36, the second motor 13 only drives the first disc 2 to rotate through the second shaft body 12, and the second disc 3 does not rotate; when the first joint plate 16 is combined with the joint surface 36, the second disc 3 can rotate following the second shaft body 12, realizing the synchronous rotation of the first disc 2 and the second disc 3.

[0052] The above-mentioned first disk 2 is used for granulating the raw powder of bright bead particles, and the raw powder of bright bead particles can form formed particles 26 inside the first disk 2. The formed particles 26 can enter the second disk 3, and the second disk 3 is used for polishing the formed particles 26. The diameter of the second disk 3 is smaller than that of the first disk 2. At the same rotational speed, the formed particles 26 inside the second disk 3 are subjected to less force and roll more gently, which helps to improve the roundness of the formed particles 26 and the quality of the bright beads.

[0053] Further, referring to Figure 5 and Figure 7 , a storage cylinder 4 is arranged outside the first disk 2, and the storage cylinder 4 is coaxially arranged with the first disk 2. The first end face of the storage cylinder 4 is rotatably sleeved outside the second disk 3, and a rotary seal connection is formed between the first end face of the storage cylinder 4 and the second disk 3. The second end face of the storage cylinder 4 is provided with an opening, and a first retaining ring 5 is fixedly connected to the second end face of the storage cylinder 4. The first retaining ring 5 is coaxially arranged with the storage cylinder 4. A material channel is formed between the outer edge of the first disk 2 and the inner edge of the first retaining ring 5. The formed particles 26 inside the first disk 2 can enter the inside of the storage cylinder 4 from the material channel. The inside of the storage cylinder 4 is a storage space 7, and the storage space 7 is used for storing the formed particles 26 formed by the first disk 2.

[0054] The above-mentioned storage cylinder 4 includes a movable sleeve 41 and a fixed sleeve 42 arranged coaxially. The movable sleeve 41 and the fixed sleeve 42 are rotatably connected. A second bracket 14 is fixedly arranged on the first shaft body 11, and a support sleeve 141 is arranged on the second bracket 14. The support sleeve 141 is sleeved outside the movable sleeve 41 and is rotatably connected to the movable sleeve 41. The fixed sleeve 42 is fixedly connected to the third bracket 25, and the fixed sleeve 42 forms a rotary connection with the second disk 3.

[0055] A gear ring 9 is fixedly sleeved outside the above-mentioned movable sleeve 41. A fourth shaft body 221 is arranged on the third bracket 25. The fourth shaft body 221 is rotatably connected to the third bracket 25. One end of the fourth shaft body 221 is fixedly sleeved with a third wheel body 22. The third wheel body 22 meshes with the gear ring 9. The other end of the fourth shaft body 221 is fixedly sleeved with a third coupling plate 222.

[0056] Referring to Figure 4 , a third shaft body 21 is arranged on the third bracket 25. The third shaft body 21 is rotatably connected to the third bracket 25. The third shaft body 21 is coaxially arranged with the fourth shaft body 221. The third shaft body 21 is arranged parallel to the second shaft body 12. A second wheel body 19 is fixedly sleeved on the third shaft body 21. A first wheel body 18 is fixedly sleeved on the second shaft body 12. The first wheel body 18 and the second wheel body 19 are connected by a synchronous belt 20 to realize synchronous rotation between the third shaft body 21 and the second shaft body 12. In this embodiment, both the first wheel body 18 and the second wheel body 19 are gears, and the synchronous belt 20 is a toothed belt.

[0057] A second coupling plate 23 is movably sleeved on the third shaft body 21. The second coupling plate 23 is connected to the third shaft body 21 by a spline, and the second coupling plate 23 can slide axially on the third shaft body 21. A second rotating plate 231 is provided on the end face of the second coupling plate 23. The second rotating plate 231 is rotatably connected to the second coupling plate 23. The second rotating plate 231 is connected to the third bracket 25 by a second functional cylinder 24. The axis of the second functional cylinder 24 is arranged parallel to the third shaft body 21. The third coupling plate 222 is arranged opposite to the second coupling plate 23. The second functional cylinder 24 is used to drive the second coupling plate 23 to move axially, so as to realize the combination or separation between the second coupling plate 23 and the third coupling plate 222.

[0058] When the second coupling plate 23 is separated from the third coupling plate 222, the second motor 13 does not drive the movable sleeve 41 to rotate; when the second coupling plate 23 is combined with the third coupling plate 222, the fourth shaft body 221 can rotate following the third shaft body 21, so as to realize the rotation of the third wheel body 22. The third wheel body 22 can drive the gear ring 9 to rotate, so as to realize the rotation of the movable sleeve 41.

[0059] Reference Figure 8 and Figure 9 As shown in [relevant figure numbers] and [relevant figure numbers], a feeding channel 34 and a discharging channel 35 are provided on the side surface of the second disc 3. The feeding channel 34 and the discharging channel 35 are arranged opposite to each other. The first end face of the storage cylinder 4 is connected to the axial middle part of the second disc 3. The first part of the second disc 3 is located inside the storage cylinder 4, and the second part of the second disc 3 is located outside the storage cylinder 4. The feeding channel 34 is located in the first part of the second disc 3, that is, the feeding channel 34 is located inside the storage cylinder 4. The feeding channel 34 communicates the storage cylinder 4 with the inner space of the second disc 3. The feeding channel 34 is used for the formed particles 26 to enter the second disc 3 from the storage cylinder 4. The discharging channel 35 is located in the second part of the second disc 3, that is, the discharging channel 35 is located outside the storage cylinder 4. The discharging channel 35 communicates the outside and the inner space of the second disc 3. After the formed particles 26 are polished, they can leave the second disc 3 from the discharging channel 35. A discharging pipeline (not shown) is provided on the second bracket 25. The position of the discharging pipeline corresponds to the discharging port of the discharging channel 35 and is used for the discharging of the formed particles 26.

[0060] A feed baffle 31 is provided at the above-mentioned feed channel 34, and the feed baffle 31 is used to open or close the feed channel 34. The feed baffle 31 is connected to the second disc 3 through an elastic connection assembly 32, and the elastic connection assembly 32 is used to form a normally closed state of the feed channel 34. A third functional cylinder 44 is provided on the fixed sleeve 42. The third functional cylinder 44 is fixedly connected to the fixed sleeve 42. The position of the third functional cylinder 44 corresponds to that of the feed baffle 31. The working end of the third functional cylinder 44 is connected with a contact plate 441. The third functional cylinder 44 is used to drive the contact plate 441 to move, so that the contact plate 441 pushes the feed baffle 31 to form an open state of the feed channel 34.

[0061] In this embodiment, a guide sleeve 8 is fixedly sleeved outside the second disc 3. The guide sleeve 8 is coaxially arranged with the second disc 3, and a gap 33 is provided between the guide sleeve 8 and the second disc 3. Refer to Figure 10 , the elastic connection assembly 32 includes a cylinder body 321. The cylinder body 321 is fixedly connected to the guide sleeve 8. A piston 322, an elastic member 324 and one end of a piston rod 323 are arranged inside the cylinder body 321. The elastic member 324 is located between the piston 322 and the cylinder body 321. The elastic member 324 is a spring. The extended state of the elastic member 324 makes the first end of the piston 322 in contact with the cylinder body 321. The elastic member 324 is sleeved outside the piston rod 323. One end of the piston rod 323 is fixedly connected to the second end of the piston 322. The other end of the piston rod 323 penetrates through the cylinder body 321 and the second disc 3 and is fixedly connected to the feed baffle 31. Refer to Figure 8 , because the elastic member 324 is in an extended state, the piston rod 323 pulls the feed baffle 31 to make the feed channel 34 in a normally closed state. Refer to Figure 11 , when the contact plate 441 of the third functional cylinder 44 pushes the feed baffle 31, the feed baffle 31 leaves the feed channel 34, and a channel for the formed particles 26 to pass through is formed between the feed baffle 31 and the feed channel 34, and the feed channel 34 is in an open state.

[0062] When the second disc 3 is not polished, the second disc 3 is in a stationary state and does not rotate with the second shaft body 12. It should be noted that the second disc 3 is configured with a position sensor and a braking member (not shown). When the first disc 2 is inclined and the second disc 3 does not rotate, the feed channel 34 is kept at the top of the second disc 3 and the discharge channel 35 is at the bottom of the second disc 3. At this time, the position of the feed channel 34 corresponds to the position of the third functional cylinder 44, and the discharge channel 35 corresponds to the position of the discharge pipe.

[0063] Inside the storage cylinder 4, there is a pusher plate 43 which is fixedly connected to the movable sleeve 41. When the movable sleeve 41 rotates, the pusher plate 43 can rotate following the movable sleeve 41, and the pusher plate 43 can push the formed particles 26 inside the storage cylinder 4, pushing the formed particles 26 at the bottom of the storage cylinder 4 to the top of the storage cylinder 4. Reference Figure 11 , the formed particles 26 reach the top of the second disc 3, and the third functional cylinder 44 pushes the feed baffle 31 away from the feed channel 34, and the formed particles 26 inside the storage cylinder 4 can enter the inside of the second disc 3 from the feed channel 34.

[0064] To prevent the moving formed particles 26 from flowing out of the material channel between the first retaining ring 5 and the first disc 2, a second retaining ring 6 is also provided between the first retaining ring 5 and the first disc 2, and the second retaining ring 6 is rotatably and sealingly connected between the first retaining ring 5 and the first disc 2 respectively. The second retaining ring 6 is an incomplete ring body, that is, the second retaining ring 6 is an arc-shaped ring body, and the second retaining ring 6 is used to partially seal the material channel. This second retaining ring 6 is fixedly connected to the second bracket 14, and when the first disc 2 is tilted, the second retaining ring 6 seals the top of the material channel. The bottom of the material channel is not sealed by the second retaining ring 6, and the formed particles 26 can enter the storage cylinder 4 from the bottom of the material channel. Reference Figure 11 , when the second disc 3 is stationary, the feed inlet of the feed channel 34 is located at the top of the material channel, the feed inlet of the feed channel 34 is blocked by the second retaining ring 6, and the pusher plate 43 pushes the formed particles 26 to the top of the second disc 3 (which is also the top of the material channel), and the formed particles 26 can enter the second disc 3 from the feed channel 34.

[0065] The working process of this disc granulator is as follows:

[0066] Step 1: The first motor 10 drives the first shaft body 11 to rotate and position, so that the first disc 2 generates a target tilt angle, the second motor 13 drives the second shaft body 12 to rotate, and the first disc 2 rotates following the second shaft body 12, maintaining the first disc 2 at the target rotational speed, and the first disc 2 is in a tilted rotation state;

[0067] At this time, the first bonding plate 16 is separated from the bonding surface 36, the second bonding plate 23 is separated from the third bonding plate 222, the second disc 3 and the movable sleeve 41 do not rotate, the feed channel 34 is located at the top of the second disc 3, the discharge channel 35 is located at the bottom of the second disc 3, and the pusher plate 43 is in the initial position;

[0068] Step 2: The spraying part 28 sprays out water mist to assist the granule and the raw material powder of the bright bead granule to enter the first disc 2. The raw material powder of the bright bead granule contacts with the water mist to form a wet material. The first disc 2 rotates obliquely. Under the action of centrifugal force and gravity, the auxiliary granule rolls, and the wet material gradually thickens on the surface of the auxiliary granule to obtain the formed granule 26. The formed granule 26 can be automatically discharged from the opening edge of the first disc 2 and enter the interior of the storage cylinder 4 through the material channel;

[0069] Step 3: When the formed granules 26 inside the storage cylinder 4 accumulate to a certain amount, the third functional cylinder 44 drives the contact plate 441 to move, so that the contact plate 441 pushes the feeding baffle 31, and the feeding baffle 31 leaves the feeding channel 34, and the feeding channel 34 is in an open state;

[0070] Step 4: The second functional cylinder 24 drives the second coupling plate 23 to move axially, so that the second coupling plate 23 is coupled with the third coupling plate 222. The fourth shaft body 221 can rotate following the third shaft body 21 to realize the rotation of the third wheel body 22. The third wheel body 22 drives the toothed ring 9 to rotate, the movable sleeve 41 generates rotation, and the pushing plate 43 rotates following the movable sleeve 41. Refer to Figure 11 , the pushing plate 43 pushes the formed granules 26 at the bottom of the storage cylinder 4 to the top of the storage cylinder 4. When the formed granules 26 pass through the feeding channel 34, they enter the interior of the second disc 3;

[0071] At this time, the first disc 2 continues the granulation work to form new formed granules 26, and the new formed granules 26 can continue to enter the bottom of the storage cylinder 4;

[0072] Step 5: Refer to Figure 12 , when the pushing plate 43 contacts the edge of the feeding channel 34, it can be considered that all the formed granules 26 at the top of the storage cylinder 4 have entered the second disc 3. At this time, the third functional cylinder 44 drives the contact plate 441 to return to its original position, and the feeding baffle 31 returns to its original position under the action of the elastic member 324. The feeding baffle 31 closes the feeding channel 34, and the feeding channel 34 is in a closed state;

[0073] Step 6: The pushing plate 43 and the movable sleeve 41 continue to rotate, and the pushing plate 43 returns to its initial position. The second functional cylinder 24 drives the second coupling plate 23 to move axially, so that the second coupling plate 23 is separated from the third coupling plate 222, and the movable sleeve 41 and the pushing plate 43 do not rotate;

[0074] Meanwhile, the first functional cylinder 17 drives the first coupling plate 16 to move axially, so that the first coupling plate 16 is coupled with the joint surface 36. The second disc 3 rotates synchronously with the first disc 2. At the same rotation speed, the formed granules 26 are less stressed and roll more gently inside the second disc 3 with a smaller diameter, and the polishing work of the formed granules 26 can be realized, which helps to improve the roundness of the formed granules 26;

[0075] Step 7: After the formed particles 26 are polished inside the second disc 3, the first functional cylinder 17 drives the first bonding plate 16 to move axially, so that the first bonding plate 16 separates from the bonding surface 36, the second disc 3 stops rotating, the feed channel 34 is located at the top of the second disc 3, the discharge channel 35 is located at the bottom of the second disc 3, the discharge channel 35 is opened, and the formed particles 26 leave the second disc 3 from the discharge channel 35;

[0076] By repeating Steps 3 - 7, continuous granulation of the bright beads and continuous polishing of the formed particles 26 can be achieved.

[0077] This disc granulator utilizes the granulation rotation power to achieve the polishing of the bright bead formed particles, saving power, and the granulation work and the polishing work can be carried out simultaneously to achieve continuous granulation and polishing of the bright beads, with high processing efficiency.

[0078] The present invention also proposes a method for granulating fireworks bright beads. This method for granulating fireworks bright beads is realized by the above-mentioned disc granulator. Refer to Figure 1 , and this method for granulating fireworks bright beads includes the following steps:

[0079] A1: Put the raw material powder of the fireworks bright bead particles and the auxiliary particles into the first disc 2 of the disc granulator, and spray water mist into the first disc 2. The first disc 2 is used to rotate in an inclined state to achieve the granulation work of the raw material powder.

[0080] Among them, the raw material powder of the fireworks bright bead particles is fed through a supporting raw material feeding device, such as an activated hopper. The activated hopper activates the material through vibration, which can effectively eliminate the arching, blocking, and sticking phenomena of the material, and avoid the problem of poor feeding of the raw material powder of the fireworks bright bead particles. The auxiliary particles can also be fed through a supporting auxiliary material feeding device, such as a screw feeding device, to maintain the continuous feeding of the auxiliary particles. A water spraying member can be arranged above the first disc 2 of the disc granulator, and the water spraying member is used to spray water mist into the first disc 2 to assist in the granulation of the raw material powder of the fireworks bright bead particles.

[0081] The above-mentioned auxiliary particles are core particles, and the particle size of the auxiliary particles is smaller than the target particle size of the fireworks bright beads. The core particles are particles or substances that act as the core during the granulation process. These core particles can be pre-prepared small particles, such as cement cores, or cores that are naturally formed during the granulation process, such as small bright beads. During the granulation process, the core particles are wrapped and thickened layer by layer with the powder material on the disc granulator to finally form the required particle size and shape, that is, bright bead particles with the target particle size. In this embodiment, the diameter of the auxiliary particles is generally 1 - 2 mm.

[0082] The control factors for the target particle size of the above-mentioned fireworks pellets include, but are not limited to, the tilt angle of the first disc 2, the rotation speed of the disc, and the water-powder ratio. The tilt angle of the first disc 2 refers to the angle between the first disc 2 and the horizontal plane. The rotation speed of the disc refers to the rotational speed of the disc during granulation. The water-powder ratio refers to the mass ratio of the water sprayed into the first disc 2 to the mass of the raw powder of the fireworks pellet particles. By controlling the tilt angle of the first disc 2, the rotation speed of the disc, and the water-powder ratio, the control of the target particle size of the pellet particles can be achieved.

[0083] A2: After the fireworks pellets reach the target particle size, they overflow from the first disc 2 and leave the first disc 2. The formed pellet particles continuously leave the first disc 2, and the raw powder of the fireworks pellet particles continuously enters the first disc 2, realizing the continuous processing of the pellet particles.

[0084] A3: The overflowing fireworks pellets are polished inside the second disc 3, and the polishing treatment can improve the roundness of the fireworks pellets.

[0085] The granulation method of the fireworks pellets in this embodiment realizes the granulation of the fireworks pellets through a disc granulator. By adjusting parameters such as the tilt angle, rotation speed, and water-powder ratio of the first disc 2, pellet particles that meet the target particle size and have uniform particles are obtained. The manufacturing process is simple. After the pellet particles reach the target particle size, they can automatically overflow from the first disc 2, and the raw powder of the fireworks pellet particles is continuously fed, maintaining continuous granulation of the granulation work, which is suitable for large-scale and high-efficiency production. Moreover, in this granulation method of the fireworks pellets, core particles are incorporated into the first disc 2. During the granulation process, the raw powder of the fireworks pellet particles can wrap around the surface of the core particles to form particles, improving the formation efficiency of the pellet particles.

[0086] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A disk granulator, characterized in that, It includes a first disc for material granulation, a first motor for driving the first disc to tilt, and a second motor for driving the first disc to rotate. The output end of the first motor is connected with a connecting seat, and the first disc and the second motor are both installed on the connecting seat. It further includes a second disc for forming and polishing the particles. The second disc is coaxially arranged with the first disc, and the diameter of the second disc is smaller than that of the first disc. The second end of the second disc is rotatably connected to the sealed end face of the first disc; A storage cylinder is arranged outside the first disc. The storage cylinder is coaxially arranged with the first disc. The first end face of the storage cylinder is rotatably sleeved outside the second disc and forms a seal with the second disc. A first retaining ring is arranged on the second end face of the storage cylinder. A material channel is formed between the inner edge of the first retaining ring and the outer edge of the first disc. The formed particles inside the first disc enter the inside of the storage cylinder through the material channel; A feed channel and a feed baffle for opening and closing the feed channel are arranged on the side of the second disc. The feed channel communicates the inner space of the storage cylinder and the inner space of the second disc. The feed baffle is connected to the second disc through an elastic connection assembly. The elastic connection assembly is used to form a normally closed state of the feed channel. The storage cylinder includes a movable sleeve and a fixed sleeve arranged coaxially. A third functional cylinder is arranged on the fixed sleeve. The third functional cylinder is used to push the feed baffle to form an open state of the feed channel; A push plate is arranged inside the storage cylinder. The push plate is fixedly connected to the movable sleeve. The push plate is used to rotate with the movable sleeve to push the formed particles inside the storage cylinder, so as to realize that the formed particles inside the storage cylinder enter the inside of the second disc through the feed channel.

2. The disk granulator according to claim 1, wherein, A second retaining ring is further arranged between the first retaining ring and the first disc. The second retaining ring is used to partially seal the material channel.

3. The disk granulator according to claim 2, wherein The first end face of the storage cylinder is connected to the axial middle part of the second disc. The first part of the second disc is located inside the storage cylinder, and the second part of the second disc is located outside the storage cylinder. A discharge channel is further arranged on the second disc. The discharge channel is located in the second part of the second disc, and the feed channel is located in the first part of the second disc.

4. The disk granulator according to claim 3, characterized in that, The sealed end face of the first disc is rotatably connected to the third support on the connecting seat through a second shaft body. The second shaft body is connected to the output shaft of the second motor; A joint surface is arranged at the first end of the second disc. A first joint plate is sleeved on the second shaft body. The first joint plate is axially slidably connected to the second shaft body. The first joint plate is arranged opposite to the joint surface. A first rotating plate rotatably connected to the first joint plate is arranged on the end face of the first joint plate. The first rotating plate is connected to the third support through a first functional cylinder. The first functional cylinder is used to drive the first joint plate to move axially to realize the combination or separation between the first joint plate and the joint surface. The second disc follows the second shaft body to rotate synchronously by combining the joint surface through the first joint plate.

5. The disk granulator according to claim 3, characterized in that, The movable sleeve is rotatably connected coaxially with the fixed sleeve. The fixed sleeve is fixedly connected to the third support. A gear ring is fixedly sleeved outside the movable sleeve. A third wheel body meshing with the gear ring is arranged on the third support.

6. The disk granulator according to claim 5, characterized in that, A third shaft body is arranged on the third support. The third shaft body and the second shaft body are connected by a synchronous belt to achieve synchronous rotation. A second coupling plate is sleeved on the third shaft body. The second coupling plate is axially slidably connected to the third shaft body. A second rotating plate rotatably connected to the second coupling plate is arranged on the end face of the second coupling plate. The second rotating plate is connected to the third support by a second functional cylinder. The second coupling plate and the third wheel body are coaxially arranged. The third wheel body is fixedly connected with a third coupling plate through a fourth shaft body. The third coupling plate and the second coupling plate are arranged oppositely. The second functional cylinder is used to drive the second coupling plate to move axially to achieve the combination or separation between the second coupling plate and the third coupling plate. The movable sleeve follows the third shaft body to rotate by combining with the third coupling plate through the second coupling plate.

7. The disk granulator according to any one of claims 1-6, characterized in that, The elastic connection assembly includes a cylinder body. The cylinder body is fixedly connected to the guide sleeve. The guide sleeve is coaxially and fixedly sleeved outside the second disc. A piston, an elastic member and one end of a piston rod are arranged inside the cylinder body. The elastic member is located between the piston and the cylinder body to keep the first end of the piston in contact with the cylinder body. One end of the piston rod is fixedly connected to the second end of the piston. The other end of the piston rod penetrates through the cylinder body and the second disc and is fixedly connected to the feed baffle.

8. The disk granulator according to claim 7, wherein, A fourth support and a raw material feeding device are provided in a supporting manner. One end of the fourth support extends above the first disc. The part of the fourth support extending above the first disc is used to install a spraying member. The spraying member is used to form a water mist above the first disc. The raw material feeding device is used for feeding raw material powder onto the first disc.

9. A method for granulating fireworks pellets, which is applied to the disk granulator described in claim 7, and is characterized in that, It includes the following steps: S1: Put the raw material powder of the fireworks bright bead particles and the auxiliary particles into the first disc of the disc granulator, and spray water mist onto the first disc. The first disc is used to rotate in an inclined state to achieve the granulation work of the raw material powder. The auxiliary particles are core particles, and the particle size of the auxiliary particles is smaller than the target particle size of the fireworks bright beads. S2: After the fireworks bright beads reach the target particle size, they overflow from the first disc. The control factors of the target particle size of the fireworks bright beads include but are not limited to the inclination angle of the first disc, the rotation speed of the disc and the water-powder ratio. S3: Polish the overflowed fireworks bright beads inside the second disc.

10. The method for granulating fireworks pellets according to claim 9, wherein, The core particles include small particle bright beads.

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