A water-cooled pyrotechnic powder granulator with an upper transmission structure

Abstract

The present invention discloses a water-cooled pyrotechnic powder granulator with an upper transmission structure. The machine comprises a frame, a power box assembly, and a granulating device. The machine is special in that it also comprises a supporting box structure connected to the frame, a steam heating device arranged on the outer side wall of the granulating device, a screen mold fixing device connected to a fixed screen mold, and a circulating water cooling assembly connected to the bottom of the bottom plate of the granulating device. An upper transmission structure is arranged above the granulating device, and the granulating device and the power box assembly are connected as a whole through the upper transmission structure and the supporting box structure. The present invention has the advantages of reasonable design of the upper transmission structure, safe and reliable circulating water cooling granulation, and high degree of automation.

Description

Technical Field

[0001] The invention belongs to the technical field of fireworks and firecrackers medicine production and processing equipment, and in particular relates to a water-cooled pyrotechnic medicine granulator with an upper transmission structure. Background Art

[0002] The propellant in the pyrotechnics needs to go through the granulation process, but due to the particularity of gunpowder, it is flammable and explosive, afraid of friction, and afraid of temperature rise. At present, there are different forms of pyrotechnics granulators on the market, but they are not suitable for granulation of pyrotechnics, and there are great safety hazards. Its main defects are: the main shaft power of the extrusion method is driven from bottom to top, and the corrosive liquid can easily corrode the seals and bearings during the cleaning process; secondly, the friction between the extrusion knife and the bottom plate makes the granulation temperature rise quickly, which creates safety hazards. For this reason, it is necessary to develop and innovate a new type of pyrotechnics granulator. Summary of the invention

[0003] In view of the above technical problems, the object of the present invention is to provide a water-cooled pyrotechnic powder granulator with an upper transmission structure, which has a high degree of automation, a reasonable structural design and good safety performance.

[0004] The technical solution adopted to achieve the purpose of the present invention is as follows:

[0005] The present invention provides a water-cooled pyrotechnic powder granulator with an upper transmission structure, which includes a frame, a power box assembly, and a granulating device. The special feature of the machine is that it also includes a supporting box structure connected to the frame, a steam heating device arranged on the outer side wall of the granulating device, a screen mold fixing device connected to a fixed screen mold, and a circulating water cooling assembly connected to the bottom of the bottom plate of the granulating device. An upper transmission structure is arranged above the granulating device, and the granulating device and the power box assembly are connected as a whole through the upper transmission structure and the supporting box structure.

[0006] Furthermore, in the above technical solution, the upper transmission structure includes an outer sleeve cavity, in which an active bevel gear connected to the transmission output shaft end of the power box assembly is arranged, a central shaft connected to the granulation extrusion workpiece unit at the center bottom of the granulation device, an outer shaft sleeved on the central shaft and whose lower end is connected to the central arc of the granulation material-dispensing workpiece unit, a central shaft bevel gear connected to the upper end of the central shaft and meshing with the active bevel gear, and an outer shaft bevel gear sleeved on the upper end of the outer shaft and meshing and matching with the lower part of the central shaft bevel gear and the active bevel gear, wherein the main force is the same, the specifications and sizes of the central shaft bevel gear and the outer shaft bevel gear are equal, and the upper and lower symmetrical installation structures are constructed. The granulation device of the upper transmission structure constructed by the above structure, through the granulation extrusion workpiece unit and the granulation material-dispensing workpiece unit driven by each bevel gear workpiece, has the same rotation speed during operation, and the upper and lower rotation directions are opposite. The shafts driven by the central shaft bevel gear and the outer shaft bevel gear are combined together through bearings (known, not marked) to form an inner and outer shaft structure, and do not affect each other during operation.

[0007] Furthermore, in the above technical scheme, the center axis bevel gear drives the granulation extrusion workpiece unit through the center axis, the outer axis bevel gear drives the granulation material shifting workpiece unit through the outer axis, the active bevel gear, the center axis bevel gear, and the outer axis bevel gear are sequentially installed in the outer sleeve cavity through the shaft and the bearing to form a bevel gear transmission assembly, the granulation extrusion workpiece unit is a flower-shaped structure blade, which rotates in the granulation extrusion direction, and the granulation material shifting workpiece unit rotates in the opposite direction to the granulation extrusion workpiece unit at the same speed; the circulating water cooling assembly, the screen mold, the belt ring assembly, and the granulation barrel feed hopper form a container space, wherein the granulation barrel feed hopper is directly inserted into the center hole of the belt ring assembly for connection.

[0008] Furthermore, in the above technical solution, the screen mold fixing device is an open-and-close structure, which further includes an adjusting bolt, an adjusting screw support, an adjusting shaft rod, a screen mold fixing device support plate, and a screen mold fixing base.

[0009] Furthermore, in the above technical solution, the screen mold fixing base is an open-and-closed annular arc structure composed of two semi-arc-shaped units, and an inner arc-shaped recess of the screen mold fixing base is constructed on the inner side of the upper part of the two semi-arc-shaped units. The inner arc-shaped recess can enable the screen mold to be clamped and fixed in the two inner arc-shaped recesses.

[0010] Furthermore, in the above technical solution, the circulating water cooling component includes a water cooling circulation chamber, a thermocouple port, and an inlet and outlet water pipe. The above component structure can enable the granulation device to maintain low-temperature granulation.

[0011] Furthermore, in the above technical solution, the driving power in the power box assembly is configured with at least one power unit.

[0012] Furthermore, in the above technical solution, the steam heating device is used to replace and connect with the circulating water cooling component when processing and granulating traditional pyrotechnic powder. It is a steam preheating device structure composed of steam inlet and outlet pipe holes, steam inlet and outlet pipes and N steam spray holes, so that the traditional pyrotechnic powder can be granulated in a preheated and moist state.

[0013] Furthermore, in the above technical solution, a speed-changing steering box is also provided in the supporting box structure, and the speed-changing steering box is a transmission belt ring assembly structure connected to the upper transmission structure, and the belt ring assembly further includes: an outer ring, a scraper pulley bearing, an inner ring, and a scraper blade. The above-mentioned composition structure can make the particle size of the extruded screen mold the same.

[0014] Furthermore, in the above technical solution, an explosion-proof wall for explosion-proof isolation is arranged between the power box assembly, the supporting box structure and the granulating device.

[0015] Furthermore, in the implementation of the present technical solution, the power of the scraper blade can also be used to adjust the size of the produced drug particles by changing the speed.

[0016] Beneficial Effects

[0017] The advantages and beneficial effects of the present invention are:

[0018] 1. The technical solution of the present invention changes the main shaft power of the existing extrusion-structured pyrotechnic powder granulation from a lower transmission structure to an upper transmission structure, fundamentally changing the structure and transmission mode of the traditional lower transmission granulator, overcoming the defect that the corrosive liquid medicine is easy to corrode and damage the main shaft seal during the cleaning process of the bottom of the granulation barrel, effectively extending the service life and replacement cycle of the main shaft components, and ensuring the normal operation and safety performance of the granulation main shaft transmission.

[0019] 2. In the technical solution of the present invention, since a circulating water cooling component is added under the bottom plate of the granulating device (or granulating barrel), the problem of safety hazards caused by the rapid heating of the granulating extrusion knife / granulating extrusion workpiece unit in the inner cavity of the granulating device / granulator due to friction with the bottom of the inner cavity of the granulating device during the production process is effectively solved.

[0020] 3. Due to the adoption of the technical solution of the present invention, an explosion-proof wall separation layout structure is provided between the granulation device and the supporting box structure and the power box assembly, which optimizes the safety facilities of the pyrotechnic powder granulation, effectively prevents the risk of dust explosion between gunpowder dust and electrical, and further improves the safety of gunpowder production.

[0021] 4. By adopting the technical solution of the present invention, when preparing traditional gunpowder granulation, the circulating water cooling component arranged under the bottom plate of the granulation device can be replaced with a steam spray preheating device, that is, a plurality of steam spray holes are processed on the plate surface in contact with the bottom plate of the granulation device. After the conversion, the processing and granulation of different pyrotechnic drugs, such as black powder, can be realized.

[0022] 5. In the implementation of the technical solution of the present invention, the opening and closing type screen mold fixing device is adopted, so that the machine can be assembled and disassembled conveniently and quickly, and the design is original.

[0023] The technical solution of the present invention is further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a front view of an embodiment of the present invention.

[0025] Figure 2 It is a schematic cross-sectional view of the main structure of the upload power structure and the granulation device structure of an embodiment of the present invention.

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the screen mold fixing device unit according to an embodiment of the present invention.

[0027] Figure 4 It is a schematic diagram of the assembled open state of the screen mold fixing base in the screen mold fixing device according to an embodiment of the present invention.

[0028] Figure 5 This is a view of a circulating water cooling assembly unit according to an embodiment of the present invention.

[0029] Figure 6 It is a structural view of an embodiment of the present invention in which the circulating water cooling component unit is replaced with a steam heating device.

[0030] Notes on the accompanying drawings: In the figure, 1-frame, 2-power box assembly, 3-driving power, 4-explosion-proof wall, 5-support box structure, 6-upper transmission structure, 6001-active bevel gear, 6002 center shaft, 6003-center shaft bevel gear, 6004-outer shaft bevel gear, 6005-outer shaft, 6007-jacket cavity, 7-drug hopper, 8-granulation device, 9-drug granule vibration screen, 10-belt ring assembly, 10001-outer ring, 10002-scraper pulley bearing, 10003-inner ring, 10005-scraper blade, 11-sieve mold, 11001-mold hole, 12-sieve mold fixing device, 12001-adjustment Screw, 12002-adjusting screw support, 12003-adjusting shaft, 12004-screen mold fixing device support plate, 12005-screen mold fixing base, 12006-inner arc concave platform of screen mold fixing base, 13-circulating water cooling component, 13001-water cooling circulation cavity, 13002-thermocouple port, 13003-inlet and outlet water pipes, 13004-steam spray hole, 14-granulation extrusion workpiece unit, 15-granulation material shifting workpiece unit, 16-steam heating device, 16001-steam inlet and outlet pipe holes, 16002-steam inlet and outlet pipes, 17-granulation barrel feed hopper, 18-pellet vibrating screen bracket, 19-speed steering box. DETAILED DESCRIPTION

[0031] In order to thoroughly understand the present invention, a large number of specific details are shown in the following description. However, it is obvious to those skilled in the art that the present invention can be implemented without some or all of these specific details. In other embodiments, those known structures are not described in detail without making the present invention difficult to understand.

[0032] The structural features of the present invention are:

[0033] like Figure 1 , Figure 2 , Figure 3 As shown, in this embodiment, a water-cooled pyrotechnic powder granulator with an upper transmission structure includes a frame 1, a power box assembly 2, and a granulating device 8, and is characterized in that it also includes a supporting box structure 5 connected to the frame 1, a steam heating device 16 arranged on the outer side wall of the granulating device 8, a sieve mold fixing device 12 connected to a fixed sieve mold 11, and a circulating water cooling assembly 13 connected to the bottom of the bottom plate of the granulating device 8. An upper transmission structure 6 is arranged above the center of the granulating device 8, and the granulating device 8 and the power box assembly 2 are connected as a whole through the upper transmission structure 6 and the supporting box structure 5.

[0034] like Figure 2As shown, more preferably, in this embodiment, the upper transmission structure 6 includes a jacket cavity 6007, in which an active bevel gear 6001 connected to the transmission output shaft end of the power box assembly 2 is arranged, a central shaft 6002 connected to the granulation extrusion workpiece unit 14 at the central bottom of the granulation device 8, an outer shaft 6005 which is sleeved on the central shaft and whose lower end is connected to the central arc of the granulation material-dispensing workpiece unit 15, a central shaft bevel gear 6003 which is connected to the upper end of the central shaft and meshed with the active bevel gear, and an outer shaft bevel gear 6004 which is sleeved on the upper end of the outer shaft and meshed and matched with the corresponding central shaft bevel gear and the active bevel gear, wherein the central shaft bevel gear and the outer shaft bevel gear are of equal size and structure, the same main force, and the two bevel gears are symmetrically installed and meshed in the upper and lower parts. When the granulation device with the upper transmission structure constructed as above is in operation, the speed is equal, and the granulation extrusion workpiece unit 14 and the granulation material-dispensing workpiece unit 15 are driven in opposite directions to work through the cooperation of each bevel gear workpiece.

[0035] See Figure 2 As shown, more preferably, in this embodiment, the central axis bevel gear drives the granulation extrusion workpiece unit through the central axis, the outer axis bevel gear drives the granulation material shifting workpiece unit through the outer axis, the active bevel gear, the central axis bevel gear, and the outer axis bevel gear are sequentially installed in the outer sleeve cavity through shafts and bearings to form a bevel gear transmission assembly, the granulation extrusion workpiece unit is a flower-shaped structure blade, which rotates in the granulation extrusion direction, and the granulation material shifting workpiece unit rotates in the opposite direction to the granulation extrusion workpiece unit at the same speed; the circulating water cooling assembly, the screen mold, the belt ring assembly, and the granulation barrel feed hopper form a container space, wherein the granulation barrel feed hopper is directly inserted into the center hole of the belt ring assembly for connection.

[0036] See Figure 3 , Figure 4 As shown, more preferably, in this embodiment, the screen mold fixing device 12 is an open and close structure, which further includes an adjusting bolt 12001, an adjusting screw support 12002, an adjusting shaft 12003, a screen mold fixing device support plate 12004, and a screen mold fixing base 12005.

[0037] See Figure 3 , Figure 4 As shown, more preferably, in this embodiment, the screen mold fixing base 12005 is an open-and-closed annular arc structure composed of two semi-arc-shaped units, and an inner arc-shaped recess 12006 of the screen mold fixing base is constructed on the inner side of the upper part of the two semi-arc-shaped units. The inner arc-shaped recess can enable the screen mold to be clamped and fixed in the two inner arc-shaped recesses.

[0038] See Figure 2 , Figure 5As shown, more preferably, in this embodiment, the circulating water cooling component 13 includes a water cooling circulation chamber 13001, a thermocouple port 13002, and an inlet and outlet water pipe 13003. The above component structure can enable the granulation device to maintain low temperature granulation.

[0039] See Figure 1 As shown, more preferably, in this embodiment, the driving power in the power box assembly 2 is configured with at least one power unit.

[0040] See Figure 1 , Figure 6 As shown, more preferably, in this embodiment, the steam heating device 16 is used for replacement connection with the circulating water cooling component 13 during the processing and granulation of traditional pyrotechnic powder, and the steam preheating device structure composed of the steam inlet and outlet pipe holes 16001, the steam inlet and outlet pipes 16002 and N steam spray holes 13004 allows the traditional pyrotechnic powder to be granulated in a preheated and moist state.

[0041] See Figure 1 As shown, more preferably, in this embodiment, a speed change steering box 19 is also provided in the support box structure 5, and the speed change steering box is used to connect the upper transmission structure to the transmission belt ring assembly 10 structure, and the belt ring assembly further includes: an outer ring, a scraper pulley bearing, an inner ring, and a scraper blade. The above-mentioned composition structure can make the particle size of the extruded screen mold the same.

[0042] Furthermore, in this embodiment, the power of the scraper blade can also be used to adjust the size of the produced drug particles by changing the speed.

[0043] See Figure 1 As shown, more preferably, in this embodiment, an explosion-proof wall 4 for explosion-proof isolation is arranged between the power box assembly 2 and the supporting box structure 5 and the granulating device 8.

[0044] The implementation working principle of the present invention is:

[0045] When the machine is started for granulation, the pyrotechnics are manually poured into the medicine lower hopper 7, and then transferred to the granulation barrel feed hopper 17. The pyrotechnics fall into the gap between the granulation material shifting workpiece unit 15 and the granulation extrusion workpiece unit 14. The equipment is started, and the granulation extrusion workpiece unit 14 rotates to squeeze the prepared pyrotechnics into the die hole 11001 on the screen die 11 and flow out. The upper layer of pyrotechnics passes through the material shifting workpiece unit 15, allowing the pyrotechnics to evenly enter the gap of the granulation extrusion workpiece unit 14. The material in the extruded screen die 11 is cut into small pieces of shaped granules by the action of the scraper blade 10005. In this process, the driving power transmits the rotational force to the granulation extrusion workpiece unit 14 and the granulation material shifting workpiece unit 15 through the speed change steering box 19 of the bevel gear assembly. In this process, the driving power is transmitted to the outer ring 10001 of the belt ring assembly 10 through the belt, driving the scraper blade 10005 to rotate around the center of the screen mold, and cutting the material extruded from the screen mold into granules. The granules fall into the drug particle vibration screen 9, and are screened to obtain unqualified products and qualified finished granules. In this process, the circulating water cooling assembly, the screen mold, the inner ring of the belt ring assembly, the drug lower hopper, the granulation barrel feed hopper, etc. stop working, which is convenient for reducing power and friction.

[0046] When disassembling the screen mold, you only need to open the screen mold fixing device with an open and close structure to take out the screen mold. The screen mold and the bottom plate are fixed in a quick way, and the whole is easy to disassemble and assemble.

[0047] A steam heating device is installed outside the lower part of the pyrotechnic powder feed hopper. Matching steam spray holes are drilled on the supporting plates of the granulation barrel feed hopper and the steam heating device to spray steam for the drug material entering the granulation barrel feed hopper. The steam heating device is set to suit different pyrotechnic powder materials, such as black powder.

[0048] At the same time, the granulating device is also equipped with an infrared temperature probe (not shown) in the prior art to facilitate real-time measurement of the screen mold temperature.

[0049] Although the present invention is described in conjunction with different preferred embodiments, it should be understood that different modifications and changes can be made to its device structure without departing from the scope of the present invention set forth in the claims, that is, the above-mentioned embodiments described in the present invention are only used to illustrate the technical solution of the present invention and cannot be understood as any limitation to the present invention. It should be understood by those skilled in the art that the present invention has a variety of well-known functional components and workpiece materials or / and substitutions / replacements, and without departing from the essential meaning of the present invention, they should all be included in the protection scope of the present invention.

Claims

1. A water-cooled pyrotechnic powder granulator with an upper transmission structure, comprising a frame (1), a power box assembly (2), and a granulator (8), wherein: The machine also comprises a supporting box structure (5) connected to the frame (1), a steam heating device (16) arranged on the outer wall of the granulating device (8), a screen mold fixing device (12) connected to the fixed screen mold (11), and a circulating water cooling component (13) connected to the bottom of the bottom plate of the granulating device (8); an upper transmission structure (6) is arranged above the granulating device (8); the granulating device (8) and the power box assembly (2) are connected as a whole via the upper transmission structure (6) and the supporting box structure (5); the upper transmission structure (6) comprises an outer sleeve cavity (6007), and an active bevel gear (6001) connected to the transmission output shaft end of the power box assembly (2) is arranged in the outer sleeve cavity, and a gear (6002) connected to the granulating device (8) is connected to the granulating device (8); The invention relates to a granulating device (8) having a central shaft (6002) on a granulating extrusion workpiece unit (14) at the central bottom, an outer shaft (6005) which is sleeved on the central shaft and whose lower end is connected to the central arc of a granulating material dispensing workpiece unit (15), a central shaft bevel gear (6003) which is connected to the upper end of the central shaft and meshes with the active bevel gear, and an outer shaft bevel gear (6004) which is sleeved on the upper end of the outer shaft and meshes and matches with the central shaft bevel gear and the active bevel gear, wherein the central shaft bevel gear and the outer shaft bevel gear are of equal size and structure and are symmetrically installed up and down, the granulating extrusion workpiece unit is of a flower-shaped blade structure, and the driving power in the power box assembly (2) is configured with at least one power unit.

2. The water-cooled pyrotechnic powder granulator with an upper transmission structure according to claim 1, characterized in that: The screen mold fixing device (12) is of an open-and-close structure, and further comprises an adjusting bolt (12001), an adjusting screw support (12002), an adjusting shaft (12003), a screen mold fixing device support plate (12004), and a screen mold fixing base (12005).

3. The water-cooled pyrotechnic powder granulator with an upper transmission structure according to claim 2, characterized in that: The screen mold fixing base (12005) is an open-closed annular arc structure composed of two semi-arc-shaped units, and an inner arc-shaped recess (12006) of the screen mold fixing base is constructed on the inner side of the upper part of the two semi-arc-shaped units. The inner arc-shaped recess can clamp and fix the screen mold in the two inner arc-shaped recesses.

4. The water-cooled pyrotechnic powder granulator with an upper transmission structure according to claim 1, characterized in that: The circulating water cooling component (13) comprises a water cooling circulation chamber (13001), a thermocouple port (13002), and an inlet and outlet water pipe (13003). The above component structure enables the granulation device to maintain low-temperature granulation.

5. The water-cooled pyrotechnic powder granulator with an upper transmission structure according to claim 1, characterized in that: The steam heating device (16) is used for replacement connection with the circulating water cooling component (13) during the processing and granulation of conventional pyrotechnic powder. It is composed of a steam inlet and outlet pipe hole (16001), a steam inlet and outlet pipe (16002) and a plurality of steam ejection holes (13004) to form a steam ejection preheating device structure, so that conventional pyrotechnic powder can be granulated in a preheated and moist state.

6. The water-cooled pyrotechnic powder granulator with an upper transmission structure according to claim 1, characterized in that: The supporting box structure (5) is also provided with a speed change steering box (19), which is connected to the upper transmission structure (6) through a transmission belt ring assembly (10), and is further connected to drive a scraper blade (10005) through the belt ring assembly, so that the particle sizes of the medicinal materials extruded from the screen die (11) can be made uniform.

7. The water-cooled pyrotechnic powder granulator with an upper transmission structure according to claim 1, characterized in that: An explosion-proof wall (4) for explosion-proof isolation is arranged between the power box assembly (2), the supporting box structure (5) and the granulating device (8).

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