Drying chamber for powder pyrotechnic composition

Abstract

The utility model discloses a drying chamber for powder pyrotechnic composition, and relates to the technical field of pyrotechnic composition production, the drying chamber comprises a drying room, a drying mechanism and a dehumidification mechanism, the side wall of the drying room is provided with a room door, the upper end of the drying room is provided with a hot water tank, the drying mechanism is arranged in the drying room, and the dehumidification mechanism is arranged in the drying room. The hot water circulates on the heat dissipation water pipe, the heat dissipation water pipe heats the heat conduction frame, the heat conduction frame heats and dries the firework powder in the charging tray, the drying room is provided with a dehumidification mechanism, and the dehumidification mechanism is used for slowly discharging moist air in the drying room, so that the hot water circulates on the heat dissipation water pipe, the heat dissipation water pipe heats the heat conduction frame, and the firework powder in the charging tray is heated and dried by the heat conduction frame. According to the utility model, the air hole plate and the three layers of dust screens are utilized to slow the air speed, so that only low-speed air flow formed by moisture removal and fresh air supplement in the drying room does not disturb the powder pyrotechnic composition, and the safety of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pyrotechnic powder production, in particular to a drying chamber for powdered pyrotechnic powder. Background Art

[0002] When producing fireworks and firecrackers, it is necessary to dry the pyrotechnic powder. Currently, most pyrotechnic powders are dried with hot air. During drying, the dynamically flowing hot air blows the pyrotechnic powder, which easily causes the pyrotechnic powder to form gunpowder dust free in the air. The pyrotechnic dust formed by the pyrotechnic powder particles moves with the dry hot air and will settle and accumulate in the air duct of the drying room, resulting in a waste of pyrotechnic powder. At the same time, in long-term work, a lot of gunpowder dust will accumulate in the air duct, causing serious safety hazards.

[0003] In view of the above problems, an improved drying chamber for powdered pyrotechnics is now designed. Utility Model Content

[0004] The purpose of the utility model is to provide a drying chamber for powdered pyrotechnics to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A drying room for powdered pyrotechnics comprises a drying room, a drying mechanism and a dehumidifying mechanism. A door is arranged on the side wall of the drying room. A hot water tank is installed at the upper end of the drying room. A heater for heating water is installed inside the hot water tank.

[0007] The drying mechanism is arranged inside the drying room and is used for placing the pyrotechnic powder material tray and heating and drying the pyrotechnic powder material tray.

[0008] The drying room is provided with a dehumidification mechanism for slowly discharging the moist air inside the drying room to prevent the pyrotechnic powder in the drying room from being blown up.

[0009] As a further solution of the utility model: the drying mechanism includes a plurality of material racks, which are placed at the bottom of the drying room, and a single material rack includes a plurality of horizontally arranged heat-conducting frames, which are parallel to each other, and support rods for supporting the heat-conducting frames are vertically installed on the side walls of the heat-conducting frames, and the lower ends of the support rods are supported on the bottom of the drying room, and a plurality of heat-dissipating water pipes for heating the heat-conducting frames are installed inside the heat-conducting frames, and the heat-dissipating water pipes are arranged in an S shape on all the heat-conducting frames of a single material rack, and hot water circulation and conveying components are arranged at both ends of the heat-dissipating water pipes.

[0010] As a further solution of the utility model: the hot water circulation and transportation component includes a third main pipe, which is installed at one end of the heat dissipation water pipe close to the bottom of the drying room, and a water outlet pipe is installed on the side wall of the third main pipe away from the heat dissipation water pipe, and the end of the water outlet pipe away from the third main pipe passes through the top of the drying room and is installed with a first main pipe, the first main pipe is arranged at the upper end of the drying room, and a first water supply pipe is installed on the side wall of the first main pipe close to the hot water tank, and the end of the first water supply pipe away from the first main pipe passes through the lower end of the side wall of the hot water tank and is arranged at the bottom of the hot water tank, and a second water pump for outputting the hot water inside the hot water tank through the first water supply pipe is installed on the first water supply pipe.

[0011] A fourth main pipe is installed at one end of the heat dissipation water pipe close to the top of the drying room, a water inlet pipe is installed at one end of the fourth main pipe away from the heat dissipation water pipe, a second main pipe is installed at one end of the water inlet pipe away from the fourth main pipe through the top of the drying room, the second main pipe is arranged at the upper end of the drying room, a second water supply pipe is installed on the side wall of the second main pipe close to the hot water tank, the second water supply pipe passes through the upper end of the side wall of the hot water tank and is arranged on the top of the hot water tank.

[0012] As a further solution of the utility model: the dehumidification mechanism includes a dehumidification fan, and air hole plates and three-layer dust-proof nets are vertically installed inside the drying room on both sides of the door, respectively. The air hole plates and the three-layer dust-proof nets play a certain wind-blocking role, so that the wind inside the drying room moves slowly, and a number of material racks are arranged between the air hole plates and the three-layer dust-proof nets. The lower end of the three-layer dust-proof nets is equipped with a water guide trough for collecting and discharging sewage when the three-layer dust-proof nets are cleaned, and the lower end of the water guide trough is installed at the bottom of the drying room, and the dehumidification fan is installed on the side wall of the drying room on the side of the three-layer dust-proof net away from the air hole plate, and a preheating component for preheating the input fresh air is arranged inside the drying room on the side of the air hole plate away from the three-layer dust-proof net.

[0013] As a further solution of the utility model: the preheating component includes a heat exchanger, which is installed on the upper end of the inner wall of the drying room on the side of the air hole plate away from the three-layer dust-proof net. The refrigerant input end of the heat exchanger is equipped with a fresh air input pipe, and the end of the fresh air input pipe away from the heat exchanger passes through the side wall of the drying room and is arranged outside the drying room. The refrigerant output end of the heat exchanger is equipped with a fresh air output pipe, and the end of the fresh air output pipe away from the heat exchanger is arranged inside the drying room on the side of the air hole plate away from the three-layer dust-proof net. The heat medium input end of the heat exchanger is equipped with a hot water input pipe, and the end of the hot water input pipe away from the heat exchanger passes through the top of the drying room and the lower end of the side wall of the hot water tank and is arranged at the bottom of the hot water tank. A first water pump for transporting the hot water inside the hot water tank to the inside of the heat exchanger through the hot water input pipe is arranged on the side wall of the hot water input pipe. The heat medium output end of the heat exchanger is equipped with a hot water output pipe, and the end of the hot water output pipe away from the heat exchanger passes through the top of the drying room and the upper end of the side wall of the hot water tank and is arranged on the top of the hot water tank.

[0014] As a further solution of the utility model: the hot water tank is arranged on the ground beside the drying room, the hot water tank keeps a safe distance from the drying room, and the second water pump and the first water pump are both installed on the side close to the hot water tank.

[0015] As a further solution of the utility model: the output end of the dehumidification fan is installed with a dust cover for preventing dust from entering the interior of the drying room through the dehumidification fan.

[0016] As a further solution of the utility model: a plurality of material racks are arranged in a rectangular array inside the drying room, and the long sides of the material racks are parallel to the wind direction.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model circulates hot water on the heat dissipation water pipe, the heat dissipation water pipe heats the heat conduction frame, and the heat conduction frame heats and dries the pyrotechnic powder in the material tray, thereby avoiding the pyrotechnic powder from being blown up due to hot air drying, reducing the loss of the pyrotechnic powder, and improving the safety of drying. At the same time, the hot water has a larger heat capacity, and the heating is more persistent and constant, which can effectively heat the pyrotechnic powder and improve the efficiency of drying the pyrotechnic powder.

[0019] The utility model utilizes air hole plates to ensure the replenishment and uniform distribution of fresh air and slows down the wind speed. The three-layer dust-proof net ensures that there is no dust pollution to the external environment and slows down the wind speed, so that there is only low-speed airflow formed by dehumidification and fresh air replenishment in the drying room, which effectively reduces the air humidity inside the drying room and does not disturb the powdered pyrotechnic powder, thereby ensuring the drying efficiency while avoiding the problem of dust and improving the safety of the equipment.

[0020] The utility model reduces the temperature difference between the fresh air and the interior of the drying room by preheating the fresh air, avoids condensation of water vapor when encountering cold, and improves the efficiency of dehumidification and moisture removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the utility model.

[0022] Figure 2 It is a cross-sectional view of the utility model.

[0023] Figure 3 It is a structural schematic diagram of the drying mechanism in the utility model.

[0024] Figure 4 It is a structural schematic diagram of the preheating component in the utility model.

[0025] Figure 5 This is a schematic diagram of the structure of Example 2 of the present utility model.

[0026] Figure 6 This is a schematic diagram of the structure of Example 3 of the present utility model.

[0027] Among them: 1. Drying room; 2. Air hole plate; 3. Fresh air input pipe; 4. Heat exchanger; 5. Hot water input pipe; 6. Hot water output pipe; 7. First water pump; 8. First main pipe; 9. Second water pump; 10. Hot water tank; 11. Three-layer dustproof net; 12. Dehumidification fan; 13. Water guide groove; 14. Water outlet pipe; 15. Heat transfer frame; 16. Support rod; 17. Door; 18. Fresh air output pipe; 19. First water pipe; 20. Heater; 21. Second main pipe; 22. Second water pipe; 23. Water inlet pipe; 24. Third main pipe; 25. Fourth main pipe; 26. Heat dissipation water pipe; 27. Material rack. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Example 1

[0030] See also Figure 1-Figure 4 In an embodiment of the utility model, a drying room for powdered pyrotechnic powder includes a drying room 1, a drying mechanism and a dehumidification mechanism. A door 17 is provided on the side wall of the drying room 1. A hot water tank 10 is installed at the upper end of the drying room 1. A heater 20 for heating water is installed inside the hot water tank 10.

[0031] The drying mechanism is arranged inside the drying room 1 and is used to place the pyrotechnic powder material tray and heat and dry the pyrotechnic powder material tray.

[0032] The dehumidification mechanism is arranged inside the drying room 1 and is used to slowly discharge the moist air inside the drying room 1 to prevent the pyrotechnic powder in the drying room 1 from being blown up.

[0033] The drying mechanism includes a plurality of material racks 27, which are placed at the bottom of the drying room 1. A single material rack 27 includes a plurality of horizontally arranged heat-conducting frames 15, which are parallel to each other. Support rods 16 for supporting the heat-conducting frames 15 are vertically installed on the side walls of the heat-conducting frames 15, and the lower ends of the support rods 16 are supported at the bottom of the drying room 1. A plurality of heat-dissipating water pipes 26 for heating the heat-conducting frames 15 are installed inside the heat-conducting frames 15. The heat-dissipating water pipes 26 are arranged in an S shape on all the heat-conducting frames 15 of a single material rack 27, and hot water circulation and conveying components are arranged at both ends of the heat-dissipating water pipes 26.

[0034] The hot water circulation and transportation component includes a third main pipe 24, which is installed at one end of the heat dissipation water pipe 26 close to the bottom of the drying room 1. A water outlet pipe 14 is installed on the side wall of the third main pipe 24 away from the heat dissipation water pipe 26. The end of the water outlet pipe 14 away from the third main pipe 24 passes through the top of the drying room 1 and is installed with a first main pipe 8. The first main pipe 8 is arranged at the upper end of the drying room 1. A first water pipe 19 is installed on the side wall of the first main pipe 8 close to the hot water tank 10. The end of the first water pipe 19 away from the first main pipe 8 passes through the lower end of the side wall of the hot water tank 10 and is arranged at the bottom of the hot water tank 10. A second water pump 9 for outputting the hot water inside the hot water tank 10 through the first water pipe 19 is installed on the first water pipe 19.

[0035] A fourth main pipe 25 is installed at one end of the heat dissipation water pipe 26 close to the top of the drying room 1, and a water inlet pipe 23 is installed at one end of the fourth main pipe 25 away from the heat dissipation water pipe 26. A second main pipe 21 is installed at one end of the water inlet pipe 23 away from the fourth main pipe 25 through the top of the drying room 1. The second main pipe 21 is arranged at the upper end of the drying room 1. A second water pipe 22 is installed on the side wall of the second main pipe 21 close to the hot water tank 10. The second water pipe 22 passes through the upper end of the side wall of the hot water tank 10 and is arranged on the top of the hot water tank 10.

[0036] When in use, start the heater 20 to heat the water inside the hot water tank 10 and heat the water to a specified temperature, then start the second water pump 9, the second water pump 9 transports the hot water inside the hot water tank 10 to the first main pipe 8 through the first water pipe 19, the first main pipe 8 transports the hot water to the inside of the water outlet pipe 14, the water outlet pipe 14 transports the hot water to the inside of the third main pipe 24, the third main pipe 24 transports the hot water to the inside of the heat dissipation water pipe 26, the heat dissipation water pipe 26 transports the water to the inside of the fourth main pipe 25, the fourth main pipe 25 transports the water to the inside of the water inlet pipe 23, the water inlet pipe 23 transports the water to the inside of the second main pipe 21, the second main pipe 21 transports the water to the inside of the second water pipe 22, and the second water pipe 22 transports the water back to the inside of the hot water tank 10.

[0037] When hot water is transported inside the heat dissipation water pipe 26 , the heat dissipation water pipe 26 heats the heat conduction frame 15 , and the heat conduction frame 15 heats and dries the pyrotechnic powder in the material tray.

[0038] The dehumidification mechanism includes a dehumidification fan 12, and air hole plates 2 and three-layer dust-proof nets 11 are vertically installed inside the drying room 1 on both sides of the door 17. The air hole plates 2 and the three-layer dust-proof nets 11 play a certain wind-blocking role, so that the wind inside the drying room 1 moves slowly. A number of material racks 27 are arranged between the air hole plates 2 and the three-layer dust-proof nets 11. The lower end of the three-layer dust-proof net 11 is equipped with a water guide trough 13 for collecting and discharging sewage when the three-layer dust-proof net 11 is cleaned. The lower end of the water guide trough 13 is installed at the bottom of the drying room 1. The dehumidification fan 12 is installed on the side wall of the drying room 1 on the side of the three-layer dust-proof net 11 away from the air hole plates 2. The inside of the drying room 1 on the side of the air hole plates 2 away from the three-layer dust-proof net 11 is provided with a preheating component for preheating the input fresh air.

[0039] The preheating component includes a heat exchanger 4, which is installed on the upper end of the inner wall of the drying room 1 on the side of the air hole plate 2 away from the three-layer dustproof net 11. The refrigerant input end of the heat exchanger 4 is installed with a fresh air input pipe 3, and the end of the fresh air input pipe 3 away from the heat exchanger 4 passes through the side wall of the drying room 1 and is arranged outside the drying room 1. The refrigerant output end of the heat exchanger 4 is installed with a fresh air output pipe 18, and the end of the fresh air output pipe 18 away from the heat exchanger 4 is arranged inside the drying room 1 on the side of the air hole plate 2 away from the three-layer dustproof net 11. The heat medium of the heat exchanger 4 A hot water input pipe 5 is installed at the input end, and one end of the hot water input pipe 5 away from the heat exchanger 4 passes through the top of the drying room 1 and the lower end of the side wall of the hot water tank 10 and is arranged at the bottom of the hot water tank 10. A first water pump 7 for transporting the hot water inside the hot water tank 10 to the inside of the heat exchanger 4 through the hot water input pipe 5 is arranged on the side wall of the hot water input pipe 5. A hot water output pipe 6 is installed at the heat medium output end of the heat exchanger 4, and one end of the hot water output pipe 6 away from the heat exchanger 4 passes through the top of the drying room 1 and the upper end of the side wall of the hot water tank 10 and is arranged on the top of the hot water tank 10.

[0040] When in use, start the first water pump 7, which transports the hot water in the hot water tank 10 to the inside of the heat exchanger 4 through the hot water input pipe 5, start the dehumidification fan 12, and under the action of pressure, the fresh air input pipe 3 transports the fresh air to the inside of the heat exchanger 4, and the hot water and the fresh air exchange heat inside the heat exchanger 4, so as to heat the fresh air, and then the hot water output pipe 6 transports the hot water after heat exchange back to the inside of the hot water tank 10, and the fresh air output pipe 18 transports the hot air after heat exchange to the inside of the drying room 1.

[0041] The fresh air passes through the air hole plate 2 and the three-layer dust-proof net 11 in sequence to carry the moisture inside the drying room 1 out of the drying room 1, and then is discharged through the moisture exhaust fan 12.

[0042] Example 2

[0043] See also Figure 5The present embodiment is different from the embodiment 1 in that the hot water tank 10 is arranged on the ground beside the drying room 1, and the hot water tank 10 maintains a safe distance from the drying room 1. The second water pump 9 and the first water pump 7 are both installed on the side close to the hot water tank 10 to avoid the influence of electrical sparks on the drying room 1 and improve the safety of the use of the drying room 1.

[0044] Example 3

[0045] See also Figure 6 The difference between this embodiment and embodiment 1 is that a plurality of material racks 27 are arranged in a rectangular array inside the drying room 1, and the long sides of the material racks 27 are parallel to the wind direction, so as to facilitate the smooth flow of air and improve the exhaust efficiency of humid air.

[0046] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention.

Claims

1. A drying room for powdered pyrotechnic powder, comprising a drying room (1), a drying mechanism and a dehumidifying mechanism, wherein a door (17) is arranged on the side wall of the drying room (1), characterized in that: A hot water tank (10) is installed at the upper end of the drying room (1), and a heater (20) for heating water is installed inside the hot water tank (10). The drying mechanism is arranged inside the drying room (1) and is used to place pyrotechnic powder trays and heat and dry the pyrotechnic powder trays. The drying room (1) is provided with a dehumidification mechanism, which is used to slowly discharge the humid air inside the drying room (1) to prevent the pyrotechnic powder in the drying room (1) from being blown up.

2. A drying chamber for powdered pyrotechnic powder according to claim 1, characterized in that: The drying mechanism comprises a plurality of material racks (27), the material racks (27) being placed at the bottom of the drying room (1), a single material rack (27) comprising a plurality of horizontally arranged heat-conducting frames (15), the heat-conducting frames (15) being parallel to each other, a support rod (16) for supporting the heat-conducting frames (15) being vertically mounted on the side walls of the heat-conducting frames (15), the lower ends of the support rods (16) being supported at the bottom of the drying room (1), a plurality of heat-dissipating water pipes (26) for heating the heat-conducting frames (15) being mounted inside the heat-conducting frames (15), the heat-dissipating water pipes (26) being arranged in an S shape on all the heat-conducting frames (15) of the single material rack (27), and hot water circulation and conveying components being arranged at both ends of the heat-dissipating water pipes (26).

3. A drying chamber for powdered pyrotechnic powder according to claim 2, characterized in that: The hot water circulation and transportation assembly comprises a third main pipe (24), the third main pipe (24) being installed at one end of the heat dissipation water pipe (26) close to the bottom of the drying room (1), a water outlet pipe (14) being installed on the side wall of the third main pipe (24) away from the heat dissipation water pipe (26), the end of the water outlet pipe (14) away from the third main pipe (24) passing through the top of the drying room (1) and being installed with a first main pipe (8), the first main pipe (8) being arranged at the upper end of the drying room (1), a first water delivery pipe (19) being installed on the side wall of the first main pipe (8) close to the hot water tank (10), the end of the first water delivery pipe (19) away from the first main pipe (8) passing through the lower end of the side wall of the hot water tank (10) and being arranged at the bottom of the hot water tank (10), the first water delivery pipe (19) being installed with a second water pump (9) for outputting the hot water in the hot water tank (10) through the first water delivery pipe (19); A fourth main pipe (25) is installed at one end of the heat dissipation water pipe (26) close to the top of the drying room (1); a water inlet pipe (23) is installed at one end of the fourth main pipe (25) away from the heat dissipation water pipe (26); a second main pipe (21) is installed at one end of the water inlet pipe (23) away from the fourth main pipe (25) passing through the top of the drying room (1); the second main pipe (21) is arranged at the upper end of the drying room (1); a second water delivery pipe (22) is installed on the side wall of the second main pipe (21) close to the hot water tank (10); the second water delivery pipe (22) passes through the upper end of the side wall of the hot water tank (10) and is arranged at the top of the hot water tank (10).

4. A drying chamber for powdered pyrotechnic powder according to claim 3, characterized in that: The dehumidification mechanism comprises a dehumidification fan (12). Wind hole plates (2) and three-layer dust-proof nets (11) are respectively vertically installed inside the drying room (1) on both sides of the door (17). The wind hole plates (2) and the three-layer dust-proof nets (11) play a certain wind-blocking role, so that the wind inside the drying room (1) moves slowly. A plurality of material racks (27) are arranged between the wind hole plates (2) and the three-layer dust-proof nets (11). The lower end of the three-layer dust-proof net (11) is provided with There is a water guide trough (13) for collecting and discharging sewage when the three-layer dustproof net (11) is cleaned, the lower end of the water guide trough (13) is installed at the bottom of the drying room (1), the dehumidification fan (12) is installed on the side wall of the drying room (1) away from the air hole plate (2) of the three-layer dustproof net (11), and a preheating component for preheating the input fresh air is arranged inside the drying room (1) on the side of the air hole plate (2) away from the three-layer dustproof net (11).

5. A drying chamber for powdered pyrotechnic powder according to claim 4, characterized in that: The preheating component comprises a heat exchanger (4), which is mounted on the upper end of the inner wall of the drying room (1) on the side of the air hole plate (2) away from the three-layer dustproof net (11), and a fresh air inlet pipe (3) is mounted on the refrigerant input end of the heat exchanger (4), and the end of the fresh air inlet pipe (3) away from the heat exchanger (4) passes through the side wall of the drying room (1) and is arranged outside the drying room (1), and a fresh air outlet pipe (18) is mounted on the refrigerant output end of the heat exchanger (4), and the end of the fresh air outlet pipe (18) away from the heat exchanger (4) is arranged inside the drying room (1) on the side of the air hole plate (2) away from the three-layer dustproof net (11), and the heat of the heat exchanger (4) A hot water input pipe (5) is installed at the heat medium input end, and the end of the hot water input pipe (5) away from the heat exchanger (4) passes through the top of the drying room (1) and the lower end of the side wall of the hot water tank (10) and is arranged at the bottom of the hot water tank (10). A first water pump (7) is arranged on the side wall of the hot water input pipe (5) for transporting the hot water inside the hot water tank (10) to the inside of the heat exchanger (4) through the hot water input pipe (5). A hot water output pipe (6) is installed at the heat medium output end of the heat exchanger (4), and the end of the hot water output pipe (6) away from the heat exchanger (4) passes through the top of the drying room (1) and the upper end of the side wall of the hot water tank (10) and is arranged at the top of the hot water tank (10).

6. A drying chamber for powdered pyrotechnic powder according to claim 5, characterized in that: The hot water tank (10) is arranged on the ground beside the drying room (1), and a safe distance is maintained between the hot water tank (10) and the drying room (1). The second water pump (9) and the first water pump (7) are both installed on a side close to the hot water tank (10).

7. A drying chamber for powdered pyrotechnics according to claim 4, characterized in that: The output end of the dehumidification fan (12) is provided with a dust cover for preventing dust from entering the interior of the drying room (1) through the dehumidification fan (12).

8. A drying chamber for powdered pyrotechnics according to claim 2, characterized in that: A plurality of material racks (27) are arranged in a rectangular array inside the drying room (1), and the long sides of the material racks (27) are parallel to the wind direction.

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