Pyrotechnic composition shearing type granulator

Abstract

The invention relates to the technical field of pyrotechnic composition production, in particular to a pyrotechnic composition shearing type granulator which comprises a supporting frame, a mounting plate is arranged on the supporting frame, a first material guide cover and two second material guide covers are arranged on the mounting plate, a smashing assembly is arranged in the first material guide cover and comprises a material guide plate and a rotary cutter, and the rotary cutter is arranged in the first material guide cover. A granulation assembly is arranged in each second material guide cover, each granulation assembly comprises a rotary granulation mechanism, a water cooling mechanism and a jarring mechanism, the water cooling mechanism comprises a water inlet pipe fitting and a water outlet pipe fitting, and the water inlet pipe fitting and the water outlet pipe fitting are the same in structure and each comprise a fixed water bin, a rotary water bin and a plurality of water passing pipes. The water cooling mechanism can continuously inject flowing cooling water into each hollow pressing roller in the rotating process of the rotating frame, so that the hollow pressing rollers are cooled through the flowing cooling water, the temperature of the hollow pressing rollers is reduced, and spontaneous combustion or explosion of gunpowder caused by high temperature generated by friction between the hollow pressing rollers and the gunpowder is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of pyrotechnic powder production, in particular to a pyrotechnic powder shearing granulator. Background Art

[0002] Pyrotechnic powder is a weak explosive substance that mainly uses its combustion reaction to produce effects such as visible light, infrared radiation, high heat, high-pressure gas, aerosol smoke and sound. It is a low-speed explosive.

[0003] Pyrotechnic powder is used in industry, agriculture, transportation and transport, such as artificial rainfall and silent close-range blasting. It is also widely used in filmmaking, entertainment celebrations and other aspects to create various special effects.

[0004] The production process of pyrotechnic powder is divided into raw material mixing, powder pressing, powder granulation and granule tableting. The existing Chinese patent with publication number CN105254457B discloses a pyrotechnic powder granulator, but the above patent also has the following defects: First, when the block gunpowder is granulated by the granulator, the temperature of the roller and the gunpowder will rise due to the continuous friction between the roller and the block gunpowder. If the temperature rise of the gunpowder exceeds a certain limit, the sensitivity of the gunpowder will increase, and it may even cause the gunpowder to spontaneously ignite or explode. Secondly, during the granulation process of block gunpowder, the crushed particles will be screened out through the screen. The traditional granulator cannot clean the screen during the granulation process. Over time, large particles of gunpowder will be stuck in the screen, which will prevent small particles of gunpowder from being discharged downward, and then the gunpowder between the roller and the screen will accumulate more and more. The roller will continue to rub the gunpowder, eventually causing the gunpowder to spontaneously ignite or even explode. Third, the screens in traditional granulators are mostly U-shaped. Since the rollers rotate continuously in the same direction, the gunpowder in the screen will be carried out of the screen due to the centrifugal force generated by the rotation of the rollers, ultimately resulting in a waste of gunpowder.

[0005] Therefore, it is necessary to provide a pyrotechnic powder shearing granulator to solve the above problems. Summary of the invention

[0006] Based on this, it is necessary to provide a pyrotechnic powder shearing granulator to address the existing technical problems.

[0007] In order to solve the problems of the prior art, the technical solution adopted by the present invention is as follows: a pyrotechnic powder shearing granulator comprises a support frame, a vertical mounting plate is fixedly arranged on the support frame, a No. 1 material guide cover and two No. 2 material guide covers are arranged in sequence from top to bottom in the vertical direction on the mounting plate, a crushing assembly is arranged in the No. 1 material guide cover, the crushing assembly comprises a material guide plate and a rotating cutter, the material guide plate is connected to the mounting plate in an inclined state, the rotating cutter is rotatably connected to the mounting plate, each No. 2 material guide cover is provided with a whole particle assembly, each group of whole particle assembly comprises a rotary granulation mechanism, a water cooling mechanism and a shock mechanism, the rotary granulation mechanism comprises a rotating frame, an arc screen and a plurality of A hollow pressure roller, an arc screen is connected to a mounting plate, a rotating frame rotates on the mounting plate, and the rotating frame is located above the arc screen, a plurality of hollow pressure rollers are evenly arranged on the rotating frame along the circumferential direction, a water cooling mechanism comprises a water inlet pipe fitting and a water outlet pipe fitting respectively arranged on both sides of the rotating frame, the water inlet pipe fitting and the water outlet pipe fitting have the same structure and both comprise a fixed water tank, a rotating water tank and a plurality of water pipes, the rotating water tank is fixedly connected to the rotating frame, the rotating water tank is rotatably connected to the fixed water tank, each water pipe connects the hollow pressure roller with the rotating water tank, a water inlet and a water outlet are respectively provided on the two fixed water tanks, and the shock mechanism comprises a plurality of telescopic shock plates connected to the rotating frame.

[0008] Furthermore, the two fixed water bins in each whole grain component are respectively fixedly connected to the mounting plate and the corresponding No. 2 material guide cover, each fixed water bin is columnar and horizontally arranged, and each fixed water bin has an open structure on the side facing the rotating frame, and an annular boss is coaxially formed in the open end of each fixed water bin, each rotating water bin is columnar and horizontally arranged, and each rotating water bin has an open structure on the side facing the fixed water bin, and each rotating water bin is coaxially inserted into the open end of the fixed water bin, and a guide slip ring is provided between each rotating water bin and the annular boss, and rubber sealing rings are formed on both sides of the guide slip ring.

[0009] Furthermore, each rotating frame includes a No. 1 turntable and a No. 2 turntable, the axes of the No. 1 turntable and the No. 2 turntable are both horizontal, the No. 1 turntable is close to the mounting plate, and the No. 2 turntable is close to the No. 2 material guide cover, and the No. 1 turntable and the No. 2 turntable have coaxially formed rotating shafts on their opposite sides, and the two rotating shafts are respectively close to the mounting plate and the No. 2 material guide cover, and a sealed bearing is embedded in one end of each fixed water tank away from the rotating water tank, and the two rotating shafts respectively pass through the mounting plate and the No. 2 material guide cover and then pass through the corresponding rotating water tank and the fixed water tank in turn, and each rotating water tank is fixedly connected to the corresponding rotating shaft, and each rotating water tank is connected to the corresponding sealed bearing, and a No. 1 connecting shaft and a No. 2 connecting shaft are respectively formed on the opposite sides of the No. 1 turntable and the No. 2 turntable, a square plug is formed on the end of the No. 2 connecting shaft, and a square slot for inserting the square plug is formed on the end of the No. 1 connecting shaft, and each hollow pressure roller is horizontally arranged between the No. 1 turntable and the No. 2 turntable.

[0010] Furthermore, a plurality of strip-shaped embedded grooves evenly distributed along the circumferential direction are provided on the outer walls of the No. 1 turntable and the No. 2 turntable near the rotating water bin, and the length direction of each strip-shaped embedded groove is parallel to the radial direction of the No. 1 turntable, and each water pipe is fixed in the corresponding strip-shaped embedded groove. A plurality of water pipes corresponding to the water pipes are formed on the side of each rotating water bin away from the fixed water bin, and each water pipe is connected to one end of the water pipe near the rotating shaft.

[0011] Furthermore, the cross-section of each hollow pressure roller is fan-shaped, and both ends of each hollow pressure roller are open structures. Several arc-shaped supporting blocks corresponding to the hollow pressure roller are formed on the facing sides of the No. 1 turntable and the No. 2 turntable. The two ends of each hollow pressure roller are respectively placed on the corresponding two arc-shaped supporting blocks. A fan-shaped nozzle is formed at one end of each water pipe close to the hollow pressure roller. Each fan-shaped nozzle is inserted into the corresponding open end of the hollow pressure roller, and a rubber ring is provided between each fan-shaped nozzle and the hollow pressure roller.

[0012] Furthermore, two U-shaped expansion frames are fixedly provided on the mounting plate, the openings of the U-shaped expansion frames face upward and expand outwards to both sides, the arc-shaped portion of the U-shaped expansion frame is a hollow structure, and arc-shaped slots are formed on both sides of the U-shaped expansion frame. Each arc-shaped screen is inserted into the U-shaped expansion frame along the two arc-shaped slots, and a vertical upward baffle is fixedly provided on the top of each U-shaped expansion frame.

[0013] Furthermore, a plurality of telescopic striking plates are evenly distributed along the circumferential direction, and each telescopic striking plate is located between two adjacent hollow pressure rollers, and each telescopic striking plate includes a strip frame plate, two telescopic driving members and a plurality of striking pins, and the strip frame plate is horizontally arranged between the No. 1 turntable and the No. 2 turntable, and the No. 1 turntable and the No. 2 turntable are provided with a plurality of strip through grooves evenly distributed along the circumferential direction, and the two ends of the strip frame plate are respectively inserted into the two strip through grooves, and the two ends of the strip frame plate are formed with strip cover plates covering the corresponding strip through grooves, and a plurality of striking pins are equidistantly fixed on the strip frame plate in the horizontal direction, and the two telescopic driving members are respectively arranged at the two ends of the strip frame plate.

[0014] Furthermore, each telescopic driving member includes a sliding pin, a limit sleeve and a spring, the two limit sleeves are respectively fixedly connected to the No. 1 turntable and the No. 2 turntable, and the axial directions of the two limit sleeves are respectively parallel to the radial directions of the No. 1 turntable and the No. 2 turntable, one end of the sliding pin is coaxially inserted into the corresponding limit sleeve, and the other end of the sliding pin is fixedly connected to the end of the strip frame plate passing through the strip through groove, a limit convex ring is coaxially formed on the sliding pin, the spring sleeve is arranged on the sliding pin, and the two ends of the spring respectively conflict with the limit convex ring and the limit sleeve, fixing rings are provided on the sides of the No. 1 turntable and the No. 2 turntable, the two fixing rings are respectively fixedly connected to the mounting plate and the No. 2 material guide cover, an annular slide is formed on the inner ring of each fixing ring, a step notch is opened on the annular slide, an arc-shaped slope is formed on the annular slide and is located next to the step notch, and a round head is formed on one end of the sliding pin for sliding on the annular slide.

[0015] Furthermore, the rotary cutter includes a drive shaft and a plurality of strip blades. The drive shaft is horizontally connected to the mounting plate for rotation. The plurality of strip blades are evenly arranged along the circumferential direction, and the plurality of strip blades are equidistantly distributed along the axial direction of the drive shaft. One end of each strip blade is fixedly connected to the drive shaft. A plurality of strip avoidance grooves equidistantly distributed along the horizontal direction are provided on the downwardly inclined end of the guide plate, and each strip avoidance groove corresponds to the strip blade.

[0016] Compared with the prior art, the present invention has the following beneficial effects: First, the device is provided with a water cooling mechanism, which continuously injects flowing cooling water into each hollow pressure roller during the rotation of the rotating frame, so as to cool the hollow pressure roller by the flowing cooling water, thereby reducing the temperature of the hollow pressure roller and preventing the high temperature generated by the friction between the hollow pressure roller and the gunpowder from causing the gunpowder to spontaneously ignite or explode; Secondly, the device is provided with a shock mechanism. When the rotating frame rotates, the shock mechanism will strike the arc screen, thereby knocking down the large particles of gunpowder stuck on the arc screen, preventing the arc screen from being blocked and causing more and more gunpowder to accumulate on the arc screen; Third, when the arc screen is installed on the U-shaped expansion frame, the two ends of the arc screen expand outwards, so that when the hollow pressure roller revolves, the gunpowder driven by the hollow pressure roller will fall down by itself when passing through the two ends of the arc screen, ultimately preventing the gunpowder from being carried out of the arc screen by the continuously rotating hollow pressure roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a top view of the present invention; Figure 3 yes Figure 2 Section view along line AA; Figure 4 yes Figure 3A1 is a partial enlarged schematic diagram; Figure 5 yes Figure 2 Sectional view along line BB; Figure 6 yes Figure 5 A2 is a partial enlarged schematic diagram; Figure 7 yes Figure 5 A3 is a partial enlarged schematic diagram; Figure 8 yes Figure 7 A4 is a partial enlarged schematic diagram; Fig. 9 yes Figure 7 A partial enlarged schematic diagram indicated by A5; Fig.10 This is a three-dimensional structural exploded view of the No. 1 material guide cover and the mounting plate; Fig.11 It is a schematic diagram of the three-dimensional structure of the whole particle component; Fig.12 yes Fig.11 A partial enlarged schematic diagram indicated by A6; Fig.13 It is a three-dimensional structural schematic diagram of the arc screen and the U-shaped expansion frame; Fig.14 It is a three-dimensional structural schematic diagram of the rotating frame; Fig.15 It is a top view of the whole particle assembly; Fig.16 yes Fig.15 Sectional view along line CC; Fig.17 yes Fig.16 A partial enlarged schematic diagram indicated by A7; Fig.18 This is the three-dimensional structure of the water pipe and the second turntable. Figure 1 ; Fig.19 This is the three-dimensional structure of the water pipe and the second turntable. Figure 2 ; Fig. 20 It is a three-dimensional structural exploded diagram of the fixed water tank and the rotating water tank.

[0018] The numbers in the figure are: 1, support frame; 2, mounting plate; 3, guide cover No. 1; 4, guide cover No. 2; 5, guide plate; 6, rotary cutter; 7, rotating frame; 8, arc screen; 9, hollow pressure roller; 10, water inlet pipe; 11, water outlet pipe; 12, fixed water tank; 13, rotating water tank; 14, water pipe; 15, water inlet; 16, water outlet; 17, annular boss; 18, guide ring; 19, rubber sealing ring; 20, turntable No. 1; 21, turntable No. 2; 22, rotating shaft; 23, sealed bearing; 24, connecting shaft No. 1; 25, connecting shaft No. 2; 26 , square plug; 27, square slot; 28, strip groove; 29, water pipe; 30, arc-shaped support block; 31, fan-shaped plug nozzle; 32, rubber ring; 33, U-shaped expansion frame; 34, arc-shaped slot; 35, shield; 36, strip frame plate; 37, strike pin; 38, strip through groove; 39, strip cover plate; 40, slide pin; 41, limit sleeve; 42, spring; 43, limit convex ring; 44, fixed ring; 45, annular slide; 46, step notch; 47, arc-shaped landslide; 48, round head; 49, drive shaft; 50, strip blade; 51, strip avoidance groove. DETAILED DESCRIPTION

[0019] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] refer to Figures 1 to 20 The pyrotechnic powder shearing granulator shown in the figure comprises a support frame 1, a vertical mounting plate 2 is fixedly arranged on the support frame 1, a No. 1 material guide cover 3 and two No. 2 material guide covers 4 are arranged on the mounting plate 2 in the vertical direction from top to bottom, a crushing assembly is arranged in the No. 1 material guide cover 3, the crushing assembly comprises a material guide plate 5 and a rotary cutter 6, the material guide plate 5 is connected to the mounting plate 2 in an inclined state, the rotary cutter 6 is rotatably connected to the mounting plate 2, each No. 2 material guide cover 4 is provided with a whole grain assembly, each group of whole grain assemblies comprises a rotary granulating mechanism, a water cooling mechanism and a shock mechanism, the rotary granulating mechanism comprises a rotating frame 7, an arc screen 8 and a plurality of hollow pressure rollers 9, the arc screen 8 is connected to the mounting plate 2, the rotating frame 7 It rotates on the mounting plate 2, and the rotating frame 7 is located above the arc-shaped screen 8, and a plurality of hollow pressure rollers 9 are evenly arranged on the rotating frame 7 along the circumferential direction. The water cooling mechanism includes a water inlet pipe 10 and a water outlet pipe 11 respectively arranged on both sides of the rotating frame 7. The water inlet pipe 10 and the water outlet pipe 11 have the same structure and both include a fixed water tank 12, a rotating water tank 13 and a plurality of water pipes 14. The rotating water tank 13 is fixedly connected to the rotating frame 7, and the rotating water tank 13 is rotatably connected to the fixed water tank 12. Each water pipe 14 connects the hollow pressure roller 9 with the rotating water tank 13. The two fixed water tanks 12 are respectively provided with a water inlet 15 and a water outlet 16. The shock mechanism includes a plurality of telescopic shock plates connected to the rotating frame 7.

[0021] The device is used to cut and granulate block gunpowder. The specific process is as follows: the block gunpowder conveyed by the previous pressing process enters the No. 1 material guide cover 3. When the block gunpowder enters the No. 1 material guide cover 3, the rotating cutter 6 will cut the block gunpowder into pieces. Thereafter, the broken gunpowder will fall downward from the No. 1 material guide cover 3 into the No. 2 material guide cover 4. When the broken gunpowder falls into the No. 2 material guide cover 4, the broken gunpowder will fall into the arc-shaped screen 8 above. In this process, a plurality of hollow pressing rollers 9 driven by the rotating frame 7 to rotate will cut the broken gunpowder into pieces. The broken gunpowder is pressed against the arc screen 8, so that the broken gunpowder will be cut into particles when passing through the arc screen 8. When the rotating frame 7 rotates, the external water source (not shown in the figure) will inject cooling water into the corresponding fixed water tank 12 through the water inlet 15. Thereafter, the cooling water enters into a plurality of water pipes 14 through the rotating water tank 13 in the water inlet pipe 10. Since each water pipe 14 is connected to the corresponding hollow pressure roller 9, the cooling water will flow into the hollow pressure roller 9, so the cooling water will take away the friction between the hollow pressure roller 9 and the gunpowder. The heat generated thereby prevents the hollow pressure roller 9 from overheating and causing the gunpowder to spontaneously combust or explode. After the cooling water flows through the hollow pressure roller 9, the cooling water will sequentially pass through the water pipe 14 in the water outlet pipe 11, the rotating water tank 13 and the fixed water tank 12, and finally the cooling water after heat exchange will be discharged from the drain port 16. During the rotation of the rotating frame 7, each telescopic striking plate will strike the arc screen 8 downward, thereby preventing large particles of gunpowder from being stuck in the arc screen 8 and causing subsequent broken gunpowder to accumulate in the arc screen 8. In order to prevent the hollow pressure roller 9 from continuously rubbing the accumulated gunpowder and causing the gunpowder to spontaneously combust or explode, the device is provided with two groups of whole grain components. The apertures of the arc-shaped screen 8 in the upper and lower whole grain components are different. The aperture of the upper arc-shaped screen 8 is larger, and the aperture of the lower arc-shaped screen 8 is smaller. In this way, through the cooperation of the two groups of whole grain components, it is prevented that the gunpowder stays in the arc-shaped screen 8 for too long during the whole grain process and causes the gunpowder to spontaneously combust or explode. Finally, the finished granular gunpowder will leak out from the arc-shaped screen 8 below.

[0022] In order to show how the rotating water tank 13 is connected to the fixed water tank 12, the following features are set: The two fixed water tanks 12 in each granulation assembly are respectively fixedly connected to the mounting plate 2 and the corresponding No. 2 material guide cover 4. Each fixed water tank 12 is columnar and horizontally arranged. Each fixed water tank 12 has an open structure on one side facing the rotating frame 7. An annular boss 17 (such as Fig. 20 As shown in the figure, each rotating water bin 13 is columnar and horizontally arranged, and each rotating water bin 13 has an open structure on one side facing the fixed water bin 12, and each rotating water bin 13 is coaxially inserted into the open end of the fixed water bin 12, and a guide ring 18 is provided between each rotating water bin 13 and the annular boss 17, and rubber sealing rings 19 are formed on both sides of the guide ring 18.

[0023] When processing the fixed water tank 12, the water inlet 15 and the water outlet 16 are formed on the peripheral wall of the fixed water tank 12. When installing the rotating water tank 13 into the fixed water tank 12, the guide slip ring 18 is first installed in the open end of the fixed water tank 12, and then the open end of the rotating water tank 13 is inserted into the open end of the fixed water tank 12. When the rotating water tank 13 is inserted into the fixed water tank 12, the outer wall of the rotating water tank 13 corresponds to the annular boss 17. At this time, the guide slip ring 18 is used to reduce the friction between the rotating water tank 13 and the annular boss 17. At the same time, the two rubber sealing rings 19 will respectively block the gaps on both sides of the rotating water tank 13 and the annular boss 17, so as to prevent the cooling water entering the fixed water tank 12 from leaking out from the gap between the annular boss 17 and the rotating water tank 13.

[0024] In order to show the specific structure of the rotating frame 7, the following features are set: Each rotating rack 7 includes a first rotating disc 20 and a second rotating disc 21 (such as Fig.14 As shown in the figure, the axes of the No. 1 turntable 20 and the No. 2 turntable 21 are both horizontal, the No. 1 turntable 20 is close to the mounting plate 2, the No. 2 turntable 21 is close to the No. 2 material guide cover 4, the No. 1 turntable 20 and the No. 2 turntable 21 are coaxially formed with a rotating shaft 22 on the opposite sides, the two rotating shafts 22 are respectively close to the mounting plate 2 and the No. 2 material guide cover 4, and a sealed bearing 23 is embedded in one end of each fixed water tank 12 away from the rotating water tank 13, and the two rotating shafts 22 pass through the mounting plate 2 and the No. 2 material guide cover 4 respectively, and then pass through the corresponding rotating water tank 13 in sequence. 3 and a fixed water tank 12, and each rotating water tank 13 is fixedly connected to the corresponding rotating shaft 22, each rotating shaft 22 is connected to the corresponding sealed bearing 23, and the facing sides of the No. 1 turntable 20 and the No. 2 turntable 21 are respectively formed with a No. 1 connecting shaft 24 and a No. 2 connecting shaft 25, a square plug block 26 is formed on the end of the No. 2 connecting shaft 25, and a square slot 27 for inserting the square plug block 26 is formed on the end of the No. 1 connecting shaft 24, and each hollow pressure roller 9 is horizontally arranged between the No. 1 turntable 20 and the No. 2 turntable 21.

[0025] In actual use, a motor (not shown in the figure) connected to the corresponding rotating shaft 22 is provided on one side of the mounting plate 2, and the No. 1 turntable 20 is driven to rotate by the motor. When the square plug 26 is inserted into the square slot 27, the No. 1 connecting shaft 24 and the No. 2 connecting shaft 25 are connected end to end. At this time, the No. 1 turntable 20 and the No. 2 turntable 21 are connected as a whole, so that the No. 2 turntable 21 will rotate with the No. 1 turntable 20, and then the hollow pressure roller 9 arranged between the No. 1 turntable 20 and the No. 2 turntable 21 will be driven to revolve. The sealed bearing 23 is not only used to reduce the friction between the rotating shaft 22 and the fixed water tank 12, but also used to prevent the cooling water in the fixed water tank 12 from leaking from the gap between the rotating shaft 22 and the fixed water tank 12.

[0026] In order to show how the water pipe 14 is installed, the following features are set: A plurality of strip-shaped embedded grooves 28 evenly distributed along the circumferential direction are provided on the outer walls of the No. 1 turntable 20 and the No. 2 turntable 21 near the rotating water tank 13. The length direction of each strip-shaped embedded groove 28 is parallel to the radial direction of the No. 1 turntable 20. Each water pipe 14 is fixed in the corresponding strip-shaped embedded groove 28. A plurality of water pipes 29 corresponding to the water pipe 14 are formed on the side of each rotating water tank 13 away from the fixed water tank 12. Each water pipe 29 is connected to one end of the water pipe 14 near the rotating shaft 22.

[0027] When the cooling water in the fixed water tank 12 enters the rotating water tank 13, the cooling water will flow to the corresponding water pipe 14 through several water pipes 29. The cooling water entering the water pipe 14 will flow to the corresponding hollow pressure roller 9, and finally the temperature of the hollow pressure roller 9 will be reduced by the circulating cooling water.

[0028] In order to show the specific structure of the hollow pressure roller 9, the following features are set: The cross section of each hollow pressure roller 9 is fan-shaped, and both ends of each hollow pressure roller 9 are open structures. A plurality of arc-shaped support blocks 30 corresponding to the hollow pressure roller 9 are formed on the opposite sides of the No. 1 turntable 20 and the No. 2 turntable 21. The two ends of each hollow pressure roller 9 are respectively placed on the corresponding two arc-shaped support blocks 30. A fan-shaped plug 31 is formed at one end of each water pipe 14 close to the hollow pressure roller 9. Each fan-shaped plug 31 is inserted into the opening corresponding to the hollow pressure roller 9, and a rubber ring 32 (such as Fig. 9 as shown).

[0029] Before installing the hollow pressure roller 9, first fix the water pipe 14 in the corresponding strip-shaped embedded groove 28, and then dock the No. 1 turntable 20 and the No. 2 turntable 21. During this process, the fan-shaped plugs 31 located on the No. 1 turntable 20 and the No. 2 turntable 21 will be inserted into the two ends of the hollow pressure roller 9 respectively, so as to fix the hollow pressure roller 9 by inserting the fan-shaped plugs 31 into the hollow pressure roller 9. When the hollow pressure roller 9 is fixed, the two ends of the hollow pressure roller 9 will be respectively placed on the corresponding two arc-shaped support blocks 30, and the arc-shaped support blocks 30 will be used to fix the hollow pressure roller 9. Block 30 is used to increase the pressure on the hollow pressure roller 9. When the rotating frame 7 rotates, each hollow pressure roller 9 will rotate. During this process, since the cross-section of the hollow pressure roller 9 is fan-shaped, the inclined surface on each hollow pressure roller 9 will press the crushed gunpowder toward the arc-shaped screen 8. After the crushed gunpowder passes through the arc-shaped screen 8, the crushed gunpowder will be cut into particles and discharged downward. When the gunpowder above falls downward into the arc-shaped screen 8, the arc-shaped surface on the hollow pressure roller 9 will guide the gunpowder to prevent it from accumulating on the hollow pressure roller 9.

[0030] In order to show how the curved screen 8 is installed, the following features are set: Two U-shaped expanding frames 33 are fixedly provided on the mounting plate 2, the openings of the U-shaped expanding frames 33 face upward and expand outwards to both sides, the arc-shaped portion of the U-shaped expanding frames 33 is a hollow structure, and arc-shaped slots 34 are formed on both sides of the U-shaped expanding frames 33. Each arc-shaped screen 8 is inserted into the U-shaped expanding frames 33 along the two arc-shaped slots 34, and a vertical upward blocking cover 35 is fixedly provided above each U-shaped expanding frame 33.

[0031] During the process of powder crushing and granulation, the powder will fall from the No. 1 guide cover 3 to the two No. 2 guide covers 4 in sequence. In this process, the shield 35 is used to prevent the powder from flying into the production environment. When the arc screen 8 is installed, the arc screen 8 is fixed in the U-shaped expansion frame 33 through two arc slots 34. When the arc screen 8 is installed on the U-shaped expansion frame 33, the two ends of the arc screen 8 expand outward toward both sides (such as Figure 4 As shown), when the hollow pressure roller 9 revolves, the gunpowder driven by the hollow pressure roller 9 will fall down by itself when passing through the two ends of the arc screen 8, ultimately preventing the gunpowder from being brought out of the arc screen 8 by the continuously rotating hollow pressure roller 9.

[0032] In order to show the specific structure of the telescopic strike plate, the following features are set: A plurality of telescopic striking plates are evenly distributed along the circumferential direction, and each telescopic striking plate is located between two adjacent hollow pressure rollers 9. Each telescopic striking plate includes a strip frame plate 36, two telescopic driving members and a plurality of striking pins 37 (such as Fig.11 As shown in the figure, the strip frame plate 36 is horizontally arranged between the first turntable 20 and the second turntable 21. The first turntable 20 and the second turntable 21 are both provided with a plurality of strip through grooves 38 evenly distributed along the circumferential direction. The two ends of the strip frame plate 36 are respectively inserted into the two strip through grooves 38. Both ends of the strip frame plate 36 are formed with strip cover plates 39 covering the corresponding strip through grooves 38. A plurality of strike pins 37 are fixed on the strip frame plate 36 at equal intervals along the horizontal direction. Two telescopic driving members are respectively arranged at the two ends of the strip frame plate 36.

[0033] The two telescopic driving parts are used to synchronously drive the strip frame plate 36 to extend and retract along the radial direction of the No. 1 turntable 20. When the rotating frame 7 drives the strip frame plate 36 to rotate to the arc screen 8, the strip frame plate 36 extends. At this time, the strip frame plate 36 will drive a number of knocking pins 37 to hit the arc screen 8 downward, so as to knock down the gunpowder stuck on the arc screen 8 by shocking the arc screen 8. When the rotating frame 7 drives the strip frame plate 36 away from the arc screen 8, the strip frame plate 36 retracts. During this process, the strip cover plate 39 provided on the strip frame plate 36 will always cover the strip through groove 38 to prevent the gunpowder from leaking through the strip through groove 38.

[0034] In order to show the specific structure of the telescopic drive, the following features are set: Each telescopic driving member includes a sliding pin 40, a limiting sleeve 41 and a spring 42. The two limiting sleeves 41 are respectively fixedly connected to the first turntable 20 and the second turntable 21, and the axial directions of the two limiting sleeves 41 are respectively parallel to the radial directions of the first turntable 20 and the second turntable 21. One end of the sliding pin 40 is coaxially inserted into the corresponding limiting sleeve 41, and the other end of the sliding pin 40 is fixedly connected to the end of the strip frame plate 36 passing through the strip through groove 38. A limiting convex ring 43 is coaxially formed on the sliding pin 40, and the spring 42 is sleeved on the sliding pin 40. The two ends of the spring 42 respectively conflict with the limiting convex ring 43 and the limiting sleeve 41. A fixing ring 44 is provided on the side of the No. 1 turntable 20 and the No. 2 turntable 21. The two fixing rings 44 are respectively fixedly connected to the mounting plate 2 and the No. 2 material guide cover 4. An annular slide 45 is formed on the inner ring of each fixing ring 44. A step notch 46 is opened on the annular slide 45. An arc-shaped slide 47 is formed on the annular slide 45 and is located next to the step notch 46. A round head 48 is formed at one end of the sliding pin 40 and slides on the annular slide 45.

[0035] When the first turntable 20 and the second turntable 21 rotate synchronously, a plurality of sliding pins 40 begin to revolve. During this process, the round head 48 provided on the sliding pin 40 slides on the annular slide 45. When the round head 48 of the sliding pin 40 conflicts with the annular slide 45, the sliding pin 40 is in a retracted state. At the same time, the limiting convex ring 43 compresses the spring 42. The stepped notch 46 provided on the annular slide 45 corresponds to the lowest point of the arc-shaped screen 8. When the sliding pin 40 revolves to the stepped notch 46, the spring 42 is vertically compressed by elastic force. That is, the sliding pin 40 is driven to extend downward, so that the two sliding pins 40 will synchronously drive the strip frame plate 36 to extend toward the arc-shaped screen 8, and finally the arc-shaped screen 8 is shocked by the impact pin 37 provided on the strip frame plate 36. When the sliding pin 40 slides out of the stepped notch 46, the round head 48 on the sliding pin 40 will gradually slide along the arc-shaped slide 47 onto the annular slide 45. During this process, the limiting convex ring 43 on the sliding pin 40 will compress the spring 42. Finally, when the round head 48 of the sliding pin 40 conflicts with the annular slide 45 again, the spring 42 is compressed to the limit.

[0036] In order to show the specific structure of the rotary cutter 6, the following features are set: The rotary cutter 6 includes a drive shaft 49 and a plurality of strip blades 50. The drive shaft 49 is horizontally connected to the mounting plate 2 for rotation. The plurality of strip blades 50 are evenly arranged along the circumferential direction, and the plurality of strip blades 50 are equidistantly distributed along the axial direction of the drive shaft 49. One end of each strip blade 50 is fixedly connected to the drive shaft 49. A plurality of strip avoidance grooves 51 equidistantly distributed along the horizontal direction are provided on the downwardly inclined end of the guide plate 5, and each strip avoidance groove 51 corresponds to the strip blade 50.

[0037] The driving shaft 49 is used to drive a plurality of strip blades 50 to rotate. When the block gunpowder falls into the No. 1 material guide cover 3, the block gunpowder will slide along the material guide plate 5 toward the rotating cutter 6. During this process, the plurality of strip blades 50 will cut the block gunpowder into pieces. The cut gunpowder will fall downward from the No. 1 material guide cover 3 to the No. 2 material guide cover 4 above. Among them, the strip avoidance groove 51 is used for the rotating strip blade 50 to pass through the material guide plate 5, so as to ensure that the strip blade 50 can smoothly cut the block gunpowder on the material guide plate 5 into pieces.

[0038] Working principle: The device is used to cut and granulate block gunpowder. The specific process is as follows: the block gunpowder conveyed by the previous pressing process enters the No. 1 material guide cover 3. When the block gunpowder enters the No. 1 material guide cover 3, the rotating cutter 6 will cut the block gunpowder into pieces. Thereafter, the broken gunpowder will fall downward from the No. 1 material guide cover 3 into the No. 2 material guide cover 4. When the broken gunpowder falls into the No. 2 material guide cover 4, the broken gunpowder will fall into the arc-shaped screen 8 above. In this process, a plurality of hollow pressing rollers 9 driven by the rotating frame 7 to rotate will cut the broken gunpowder into pieces. The broken gunpowder is pressed against the arc screen 8, so that the broken gunpowder will be cut into particles when passing through the arc screen 8. When the rotating frame 7 rotates, the external water source (not shown in the figure) will inject cooling water into the corresponding fixed water tank 12 through the water inlet 15. Thereafter, the cooling water enters into a plurality of water pipes 14 through the rotating water tank 13 in the water inlet pipe 10. Since each water pipe 14 is connected to the corresponding hollow pressure roller 9, the cooling water will flow into the hollow pressure roller 9, so the cooling water will take away the friction between the hollow pressure roller 9 and the gunpowder. The heat generated thereby prevents the hollow pressure roller 9 from overheating and causing the gunpowder to spontaneously combust or explode. After the cooling water flows through the hollow pressure roller 9, the cooling water will sequentially pass through the water pipe 14 in the water outlet pipe 11, the rotating water tank 13 and the fixed water tank 12, and finally the cooling water after heat exchange will be discharged from the drain port 16. During the rotation of the rotating frame 7, each telescopic striking plate will strike the arc screen 8 downward, thereby preventing large particles of gunpowder from being stuck in the arc screen 8 and causing subsequent broken gunpowder to accumulate in the arc screen 8. In order to prevent the hollow pressure roller 9 from continuously rubbing the accumulated gunpowder and causing the gunpowder to spontaneously combust or explode, the device is provided with two groups of whole grain components. The apertures of the arc-shaped screen 8 in the upper and lower whole grain components are different. The aperture of the upper arc-shaped screen 8 is larger, and the aperture of the lower arc-shaped screen 8 is smaller. In this way, through the cooperation of the two groups of whole grain components, it is prevented that the gunpowder stays in the arc-shaped screen 8 for too long during the whole grain process and causes the gunpowder to spontaneously combust or explode. Finally, the finished granular gunpowder will leak out from the arc-shaped screen 8 below.

[0039] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A pyrotechnic powder shearing granulator, characterized in that: It includes a support frame, a vertical mounting plate is fixed on the support frame, a No. 1 material guide cover and two No. 2 material guide covers are arranged on the mounting plate in the vertical direction from top to bottom, a crushing assembly is arranged in the No. 1 material guide cover, the crushing assembly includes a material guide plate and a rotary cutter, the material guide plate is connected to the mounting plate in an inclined state, the rotary cutter is rotatably connected to the mounting plate, each No. 2 material guide cover is provided with a whole particle assembly, each group of whole particle assembly includes a rotary granulation mechanism, a water cooling mechanism and a shock mechanism, the rotary granulation mechanism includes a rotating frame, an arc screen and a plurality of hollow pressure rollers, the arc screen is connected to the mounting plate, The rotating frame rotates on the mounting plate, and the rotating frame is located above the arc-shaped screen. A number of hollow pressure rollers are evenly arranged on the rotating frame along the circumferential direction. The water cooling mechanism includes a water inlet pipe fitting and a water outlet pipe fitting respectively arranged on both sides of the rotating frame. The water inlet pipe fitting and the water outlet pipe fitting have the same structure and both include a fixed water tank, a rotating water tank and a number of water pipes. The rotating water tank is fixedly connected to the rotating frame, and the rotating water tank is rotatably connected to the fixed water tank. Each water pipe connects the hollow pressure roller with the rotating water tank. The two fixed water tanks are respectively provided with a water inlet and a water outlet. The shock mechanism includes a number of telescopic shock plates connected to the rotating frame.

2. A pyrotechnic powder shearing granulator according to claim 1, characterized in that: The two fixed water bins in each whole grain component are respectively fixedly connected to the mounting plate and the corresponding No. 2 material guide cover, each fixed water bin is columnar and horizontally arranged, each fixed water bin has an open structure on the side facing the rotating frame, and an annular boss is coaxially formed in the open end of each fixed water bin, each rotating water bin is columnar and horizontally arranged, each rotating water bin has an open structure on the side facing the fixed water bin, and each rotating water bin is coaxially inserted into the open end of the fixed water bin, a guide slip ring is provided between each rotating water bin and the annular boss, and rubber sealing rings are formed on both sides of the guide slip ring.

3. A pyrotechnic powder shearing granulator according to claim 2, characterized in that: Each rotating frame includes a No. 1 turntable and a No. 2 turntable, the axes of the No. 1 turntable and the No. 2 turntable are both horizontal, the No. 1 turntable is close to the mounting plate, and the No. 2 turntable is close to the No. 2 material guide cover, and the No. 1 turntable and the No. 2 turntable have coaxially formed rotating shafts on their opposite sides, and the two rotating shafts are respectively close to the mounting plate and the No. 2 material guide cover, and a sealed bearing is embedded in one end of each fixed water tank away from the rotating water tank, and the two rotating shafts pass through the mounting plate and the No. 2 material guide cover respectively, and then pass through the corresponding rotating water tank and the fixed water tank in turn, and each rotating water tank is fixedly connected to the corresponding rotating shaft, and each rotating water tank is connected to the corresponding sealed bearing, and a No. 1 connecting shaft and a No. 2 connecting shaft are respectively formed on the opposite sides of the No. 1 turntable and the No. 2 turntable, a square plug is formed on the end of the No. 2 connecting shaft, and a square slot for inserting the square plug is formed on the end of the No. 1 connecting shaft, and each hollow pressure roller is horizontally arranged between the No. 1 turntable and the No. 2 turntable.

4. A pyrotechnic powder shearing granulator according to claim 2, characterized in that: A number of strip grooves evenly distributed along the circumferential direction are provided on the outer walls of the No. 1 turntable and the No. 2 turntable near the rotating water tank. The length direction of each strip groove is parallel to the radial direction of the No. 1 turntable. Each water pipe is fixed in the corresponding strip groove. A number of water pipes corresponding to the water pipes are formed on the side of each rotating water tank away from the fixed water tank. Each water pipe is connected to the end of the water pipe near the rotating shaft.

5. A pyrotechnic powder shearing granulator according to claim 3, characterized in that: The cross-section of each hollow pressure roller is fan-shaped, and both ends of each hollow pressure roller are open structures. Several arc-shaped supporting blocks corresponding to the hollow pressure roller are formed on the opposite sides of the No. 1 turntable and the No. 2 turntable. The two ends of each hollow pressure roller are respectively placed on the corresponding two arc-shaped supporting blocks. A fan-shaped plug is formed at one end of each water pipe close to the hollow pressure roller. Each fan-shaped plug is inserted into the corresponding open end of the hollow pressure roller, and a rubber ring is provided between each fan-shaped plug and the hollow pressure roller.

6. A pyrotechnic powder shearing granulator according to claim 1, characterized in that: Two U-shaped expansion frames are fixedly provided on the mounting plate, the openings of the U-shaped expansion frames face upward and expand outwards to both sides, the arc-shaped portion of the U-shaped expansion frame is a hollow structure, arc-shaped slots are formed on both sides of the U-shaped expansion frame, each arc-shaped screen is inserted into the U-shaped expansion frame along the two arc-shaped slots, and a vertical upward baffle is fixedly provided on the top of each U-shaped expansion frame.

7. A pyrotechnic powder shearing granulator according to claim 3, characterized in that: A number of telescopic striking plates are evenly distributed along the circumferential direction, and each telescopic striking plate is located between two adjacent hollow pressure rollers. Each telescopic striking plate includes a strip frame plate, two telescopic driving members and a number of striking pins. The strip frame plate is horizontally arranged between the No. 1 turntable and the No. 2 turntable. The No. 1 turntable and the No. 2 turntable are both provided with a number of strip through grooves evenly distributed along the circumferential direction. The two ends of the strip frame plate are respectively inserted into the two strip through grooves. Both ends of the strip frame plate are formed with strip cover plates covering the corresponding strip through grooves. A number of striking pins are equidistantly fixed on the strip frame plate in the horizontal direction. The two telescopic driving members are respectively arranged at the two ends of the strip frame plate.

8. A pyrotechnic powder shearing granulator according to claim 7, characterized in that: The cam is secured to the chassis and has two camshafts that are connected to the chassis to allow the two wheels to move freely.

9. A pyrotechnic powder shearing granulator according to claim 1, characterized in that: The rotary cutter includes a driving shaft and a plurality of strip blades. The driving shaft is horizontally connected to the mounting plate for rotation. The plurality of strip blades are evenly arranged along the circumferential direction and are evenly distributed along the axial direction of the driving shaft. One end of each strip blade is fixedly connected to the driving shaft. A plurality of strip avoidance grooves evenly distributed along the horizontal direction are provided on the downwardly inclined end of the guide plate, and each strip avoidance groove corresponds to the strip blade.

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