A screening device for ammonium perchlorate crystal particles
By employing alternating operation of cross-shaped sieve plates and a vibration design in the ammonium perchlorate crystallization particle screening device, the problem of accumulation of qualified screening materials was solved, achieving efficient screening and improved production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANYUAN (YICHANG) NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-06-02
AI Technical Summary
In existing ammonium perchlorate crystallization particle screening equipment, qualified materials accumulate on the surface of the screen plate, hindering the passage of particles of normal size, resulting in frequent cleaning inconvenience, reduced screening efficiency, and impact on production rhythm.
The design employs two cross-shaped screens that work alternately. Large particles are transferred to the arc-shaped screen by a stepper motor, and are processed by vibration and crushing rollers to ensure uninterrupted screening and prevent material accumulation.
This achieves a highly efficient screening process, increases the screening volume per unit time, avoids the problem of low screening efficiency, and improves production efficiency.
Smart Images
Figure CN224308498U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sorting technology, and in particular to a screening device for ammonium perchlorate crystal particles. Background Technology
[0002] Ammonium perchlorate, as a strong oxidant, can be used in the manufacture of explosives and fireworks, and as an analytical reagent. In the production process of ammonium perchlorate, the ammonium perchlorate crystals obtained after centrifugal drying often need to be screened. Chinese utility model patent, authorized announcement number "CN221965962U", discloses an ammonium perchlorate crystal screening device. This utility model can realize multi-stage screening of materials through a grading screening mechanism, which solves the problem that existing ammonium perchlorate crystal screening equipment is prone to screen plate blockage during the screening process because it only performs screening once. At this time, it is necessary to frequently clean or replace the blocked screen plate. The operation is simpler and more convenient, and the screening efficiency is greatly improved.
[0003] While the above-mentioned technical solution can screen ammonium perchlorate crystal particles in stages during use, the qualified material still accumulates on the surface of the sieve plate. This accumulation hinders the normal-sized ammonium perchlorate crystal particles from passing smoothly through the filter screen, requiring operators to frequently clean the large particles accumulated on the filter screen surface, which is quite inconvenient. This not only reduces screening efficiency but also affects the subsequent processing of ammonium perchlorate and the production rhythm of related products, which is not conducive to improving overall production efficiency. Therefore, we propose an ammonium perchlorate crystal particle screening device. Utility Model Content
[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a screening device for ammonium perchlorate crystal particles. This device can solve the problem that although it can screen ammonium perchlorate crystal particles in stages, the qualified material still accumulates on the surface of the screen plate. This accumulation of material will prevent normal-sized ammonium perchlorate crystal particles from passing through the filter screen smoothly. Operators still need to frequently clean the large particles accumulated on the surface of the filter screen, which is quite inconvenient. This not only reduces the screening efficiency, but also affects the production rhythm of subsequent processing of ammonium perchlorate and related products, which is not conducive to improving the overall production efficiency.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a screening device for ammonium perchlorate crystal particles, comprising:
[0006] The discharge box has a sliding connection to a crystallization particle screening box inside.
[0007] The particle screening structure is located on the crystallized particle screening box;
[0008] The particle screening structure includes two stepper motors, two rotating shafts, and two cross sieve plates. The two rotating shafts are rotatably connected inside the crystallizing particle screening box. The two stepper motors are fixedly installed on one side of the crystallizing particle screening box. The output ends of the two stepper motors extend rotatably into the interior of the crystallizing particle screening box and are fixedly connected to the corresponding rotating shafts. The two cross sieve plates are fixedly sleeved on the outer surface of the corresponding rotating shafts. Four sealing triangular plates are fixedly connected to the outside of the two cross sieve plates.
[0009] Preferably, the particle screening structure further includes an arc-shaped sieve plate, a crushing roller, a rotating rod, and a drive motor. The drive motor is fixedly installed on one side of the crystallizing particle screening box near the two stepper motors. The output end of the drive motor extends rotatably into the interior of the crystallizing particle screening box and is fixedly connected to the rotating rod. The rotating rod is rotatably connected inside the crystallizing particle screening box. The crushing roller is fixedly sleeved on the outer surface of the rotating rod. The arc-shaped sieve plate is fixedly connected inside the crystallizing particle screening box, and the crushing roller is located inside the arc-shaped sieve plate.
[0010] Preferably, an annular plate is fixedly sleeved on the outside of the crystallization particle screening box, and multiple springs are fixedly connected to the bottom of the annular plate, with the bottom ends of the multiple springs fixedly connected to the top of the discharge box.
[0011] Preferably, a support base is fixedly connected to the top of the discharge box, a rotating motor is fixedly installed on the top of the support base, and a cam is fixedly connected to the output end of the rotating motor. The cam is located below the annular plate.
[0012] Preferably, a discharge port is provided on one side of the discharge box, the discharge port is inclined on the discharge box, and a control panel is fixedly installed on one side of the discharge box.
[0013] Preferably, the sealing triangular plate is made of rubber.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. This ammonium perchlorate crystallization particle screening device uses two cross-shaped screen plates working alternately. When large particles accumulate on one screen plate, a stepper motor drives it to rotate, transferring the large particles to the arc-shaped screen plate. The other screen plate immediately takes over the screening work, ensuring that the screening process is uninterrupted. Combined with the vibration of the crystallization particle screening box, qualified particles can pass through the screen plates quickly, effectively avoiding the problem of low screening efficiency caused by material accumulation, and further improving the screening volume per unit time. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a schematic diagram of the material discharge box structure of this utility model;
[0019] Figure 3 This is a schematic cross-sectional view of the crystallization particle screening box of this utility model;
[0020] Figure 4 This is a schematic diagram of the arc-shaped sieve plate structure of this utility model.
[0021] Reference numerals in the attached diagram: 1. Discharge box; 2. Crystallized particle screening box; 3. Stepper motor; 4. Annular plate; 5. Spring; 6. Drive motor; 7. Discharge port; 8. Rotary motor; 9. Cam; 10. Sealing triangular plate; 11. Cross screen plate; 12. Rotating shaft; 13. Arc screen plate; 14. Crushing roller; 15. Rotating rod; 16. Support base. Detailed Implementation
[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0023] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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 this utility model.
[0024] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.
[0025] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0026] Please see Figure 1-4 This utility model provides a technical solution: a screening device for ammonium perchlorate crystal particles, comprising:
[0027] Discharge box 1, with a crystalline particle screening box 2 slidably connected inside discharge box 1;
[0028] The particle screening structure is located on the crystallized particle screening box 2;
[0029] The particle screening structure includes two stepper motors 3, two rotating shafts 12, and two cross sieve plates 11. The two rotating shafts 12 are rotatably connected inside the crystallizing particle screening box 2. The two stepper motors 3 are fixedly installed on one side of the crystallizing particle screening box 2. The output ends of the two stepper motors 3 extend into the interior of the crystallizing particle screening box 2 and are fixedly connected to the corresponding rotating shafts 12. The two cross sieve plates 11 are fixedly sleeved on the outer surface of the corresponding rotating shafts 12. Four sealing triangular plates 10 are fixedly connected to the outside of the two cross sieve plates 11. The sealing triangular plates 10 are made of rubber.
[0030] The particle screening structure also includes an arc-shaped sieve plate 13, a crushing roller 14, a rotating rod 15, and a drive motor 6. The drive motor 6 is fixedly installed on the side of the crystallizing particle screening box 2 near the two stepper motors 3. The output end of the drive motor 6 extends into the interior of the crystallizing particle screening box 2 and is fixedly connected to the rotating rod 15. The rotating rod 15 is rotatably connected to the interior of the crystallizing particle screening box 2. The crushing roller 14 is fixedly sleeved on the outer surface of the rotating rod 15. The arc-shaped sieve plate 13 is fixedly connected to the interior of the crystallizing particle screening box 2, and the crushing roller 14 is located inside the arc-shaped sieve plate 13.
[0031] An annular plate 4 is fixedly fitted to the outside of the crystallization particle screening box 2. Multiple springs 5 are fixedly connected to the bottom of the annular plate 4. The bottom ends of the multiple springs 5 are fixedly connected to the top of the discharge box 1. A support base 16 is fixedly connected to the top of the discharge box 1. A rotating motor 8 is fixedly installed on the top of the support base 16. A cam 9 is fixedly connected to the output end of the rotating motor 8. The cam 9 is located below the annular plate 4. A discharge port 7 is opened on one side of the discharge box 1. A control panel is fixedly installed on one side of the discharge box 1.
[0032] Furthermore, when using the device, the ammonium perchlorate crystals to be screened are placed into the crystallization particle screening box 2, the motor 8 is started, and its output end drives the cam 9 to rotate. The rotation of the cam 9 will continuously push the annular plate 4, causing the crystallization particle screening box 2 to vibrate up and down in the discharge box 1 through the spring 5. This vibration helps the particles to be distributed more evenly in the screening box, and at the same time prevents the particles from clogging the screen plate.
[0033] When large particles accumulate on one side of the cross screen plate 11, the stepper motor 3, which is away from the discharge box 1, is started. Its output end drives the rotating shaft 12 to rotate, thereby enabling the cross screen plate 11, which is fixedly sleeved on the rotating shaft 12, to rotate clockwise. During the rotation, the cross screen plate 11 can rotate the larger ammonium perchlorate crystal particles to the top of the arc-shaped screen plate 13, so that the larger particles eventually fall into the interior of the arc-shaped screen plate 13. At this time, the cross screen plate 11 near the discharge box 1 will not rotate, so that the cross screen plate 11 near the discharge box 1 can take over the screening from the rotating cross screen plate 11 above, thus enabling continuous screening. Since the cross screen plate 11 is fixedly connected to the outside with a rubber sealing triangular plate 10, it can prevent particles from leaking out from the edge of the screen plate during rotation, ensuring the screening effect.
[0034] When larger particles fall inside the arc-shaped screen plate 13, the drive motor 6 starts, and its output end drives the rotating rod 15 to rotate, causing the crushing roller 14, which is fixedly sleeved on the rotating rod 15, to rotate inside the arc-shaped screen plate 13. The larger particles intercepted by the cross screen plate 11 are guided to the area of the arc-shaped screen plate 13, where the crushing roller 14 crushes these larger particles. The crushed particles are then screened again by the arc-shaped screen plate 13. Particles that meet the size requirements fall through the arc-shaped screen plate 13, while the larger particles that are not completely crushed remain inside the arc-shaped screen plate 13 for further crushing. The qualified ammonium perchlorate crystal particles finally fall into the discharge box 1 and are discharged through the discharge port 7 on one side of the discharge box 1.
[0035] With two cross-shaped screen plates 11 working alternately, when large particles accumulate on one screen plate, the stepper motor 3 drives it to rotate, transferring the large particles to the arc-shaped screen plate 13. The other screen plate immediately takes over the screening work, ensuring that the screening process is uninterrupted. Combined with the vibration of the crystallized particle screening box 2, qualified particles can pass through the screen plate quickly, effectively avoiding the problem of low screening efficiency caused by material accumulation, and further improving the screening volume per unit time.
[0036] Structural Description: Discharge Box 1: As the basic supporting component of the device, it is used to collect qualified ammonium perchlorate crystal particles and discharge the finished product through discharge port 7; its interior provides sliding space for the crystal particle screening box 2;
[0037] Crystallized Particle Screening Box 2: Used to contain ammonium perchlorate crystals to be screened, providing an installation carrier for the particle screening structure;
[0038] Stepper motor 3: provides rotational power to the rotating shaft 12, drives the cross sieve plate 11 to rotate, and realizes the alternation of large particle transfer and screening.
[0039] Annular plate 4: Fixed to the outside of the crystallization particle screening box 2, connected to spring 5, and working with cam 9 to transmit vibration force, causing the crystallization particle screening box 2 to vibrate;
[0040] Spring 5: Connects the annular plate 4 and the discharge box 1, and plays a role in buffering and transmitting vibration, so that the crystallization particle screening box 2 can vibrate up and down;
[0041] Drive motor 6: provides rotational power to the rotating rod 15, driving the crushing roller 14 to rotate and crush larger particles that are intercepted;
[0042] Rotary motor 8: Drives cam 9 to rotate through the output end, providing power for the vibration of crystallization particle screening box 2;
[0043] Cam 9: Driven by the rotating motor 8, it rotates and continuously pushes the annular plate 4, causing the crystal particle screening box 2 to vibrate up and down;
[0044] Sealing triangular plate 10: Fixed to the outside of cross screen plate 11, made of rubber material, to prevent particles from leaking out from the edge of the screen plate when the cross screen plate 11 rotates, thus ensuring screening accuracy;
[0045] Cross sieve plate 11: Screens ammonium perchlorate crystal particles, intercepts larger particles, and transfers the large particles to the arc sieve plate 13 under the drive of stepper motor 3;
[0046] Rotating shaft 12: connected to the output end of stepper motor 3, driving the cross screen plate 11 to rotate;
[0047] Arc-shaped sieve plate 13: receives larger particles transferred from cross sieve plate 11, provides working space for crushing roller 14, and performs secondary screening of crushed particles;
[0048] Crushing roller 14: Rotates under the drive of drive motor 6 to crush larger particles in arc-shaped screen plate 13 so that their size meets the requirements;
[0049] Rotating rod 15: connects the drive motor 6 and the crushing roller 14, and transmits rotational power;
[0050] Support base 16: Fixed to the top of the discharge box 1, used to install the rotating motor 8, and serves to support and fix it.
[0051] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A screening device for ammonium perchlorate crystal particles, characterized in that, include: Discharge box (1), with a crystalline particle screening box (2) slidably connected inside the discharge box (1); The particle screening structure is located on the crystallized particle screening box (2); The particle screening structure includes two stepper motors (3), two rotating shafts (12) and two cross sieve plates (11). The two rotating shafts (12) are rotatably connected inside the crystallized particle screening box (2), and the two stepper motors (3) are fixedly installed on one side of the crystallized particle screening box (2). The output ends of the two stepper motors (3) are both rotated and extended into the interior of the crystal particle screening box (2) and fixedly connected to the corresponding rotating shaft (12); Among them, the two cross sieve plates (11) are fixedly sleeved on the outer surface of the corresponding rotating shaft (12), and four sealing triangular plates (10) are fixedly connected to the outside of the two cross sieve plates (11).
2. The ammonium perchlorate crystal particle screening device according to claim 1, characterized in that: The particle screening structure also includes an arc-shaped sieve plate (13), a crushing roller (14), a rotating rod (15) and a drive motor (6). The drive motor (6) is fixedly installed on the side of the crystallization particle screening box (2) near the two stepper motors (3). The output end of the drive motor (6) rotates and extends into the interior of the crystallization particle screening box (2) and is fixedly connected to the rotating rod (15). The rotating rod (15) is rotatably connected inside the crystallization particle screening box (2), the crushing roller (14) is fixedly sleeved on the outer surface of the rotating rod (15), the arc-shaped screen plate (13) is fixedly connected inside the crystallization particle screening box (2), and the crushing roller (14) is located inside the arc-shaped screen plate (13).
3. The ammonium perchlorate crystal particle screening device according to claim 1, characterized in that: The crystallization particle screening box (2) is externally fitted with an annular plate (4), and the bottom of the annular plate (4) is fixedly connected with multiple springs (5), the bottom ends of the multiple springs (5) are fixedly connected to the top of the discharge box (1).
4. The ammonium perchlorate crystal particle screening device according to claim 3, characterized in that: The top of the discharge box (1) is fixedly connected to a support base (16), and a rotating motor (8) is fixedly installed on the top of the support base (16). The output end of the rotating motor (8) is fixedly connected to a cam (9), which is located below the annular plate (4).
5. The ammonium perchlorate crystal particle screening device according to claim 1, characterized in that: The discharge box (1) has a discharge port (7) on one side, which is inclined on the discharge box (1). A control panel is fixedly installed on one side of the discharge box (1).
6. The ammonium perchlorate crystal particle screening device according to claim 1, characterized in that: The sealing triangle (10) is made of rubber.