A spiral feeding device for fireworks raw materials

Abstract

This utility model relates to the field of fireworks production, and more particularly to a spiral feeding device for fireworks raw materials. This utility model provides a spiral feeding device for fireworks raw materials that can cool the material cylinder, reduce the heat generated by friction during powder conveying, and prevent spontaneous combustion of the powder. A spiral feeding device for fireworks raw materials includes a support frame, a hanger, a material cylinder, a feed inlet, a discharge outlet, a geared motor, and a conveying frame. The support frame is connected to the upper part of the hanger, and the material cylinder is connected to the hanger. The material cylinder has a feed inlet on the upper right and a discharge outlet on the lower left. A geared motor is connected to the right side of the material cylinder, and a conveying frame is rotatably connected inside the material cylinder. The conveying frame is connected to the output shaft of the geared motor. During material conveying via the conveying frame, a pump tank injects coolant into the cooling plate through a connecting plate. The coolant circulates within the cooling plate, cooling the material cylinder and reducing the heat generated by friction during powder conveying, thus preventing spontaneous combustion of the powder.

Description

Technical Field

[0001] This utility model relates to the field of fireworks production, and in particular to a spiral feeding device for fireworks raw materials. Background Technology

[0002] Firework raw materials refer to the various powdered chemical substances used in the production of fireworks and firecrackers. These raw material powders play a crucial role in the manufacturing process, determining the color, brightness, sound effects, and combustion characteristics of the fireworks. Firework raw material powders are typically conveyed using a screw conveyor system. Screw conveying refers to the process of using a screw conveyor to transport various raw materials from a lower position to a higher position during fireworks and firecracker production. Screw conveyors are commonly used material handling equipment, especially suitable for the vertical or inclined conveying of powdery or granular materials.

[0003] Current devices for spiral feeding of fireworks raw materials typically use spiral blades inside a cylinder, driven by a motor to rotate the blades and transport the raw materials to the production area. However, fireworks raw materials are flammable, and the rotation of the spiral blades generates heat. Furthermore, the friction and heat generated by the stirring of the raw materials can easily lead to spontaneous combustion and explosion once a certain amount is reached, affecting the safety of fireworks production.

[0004] Therefore, a spiral feeding device for fireworks raw materials has been developed that can cool the material cylinder, reduce the heat generated by friction during powder conveying, and prevent the powder from spontaneously combusting. Utility Model Content

[0005] In order to overcome the shortcomings of the above-mentioned background technology, the present invention provides a spiral feeding device for fireworks raw materials that can cool down the material cylinder, reduce the heat generated by friction during the conveying of powder, and avoid the problem of spontaneous combustion of powder.

[0006] The technical solution of this utility model is: a spiral feeding device for fireworks raw materials, including a support frame, a hanger, a material cylinder, a feed inlet, a discharge outlet, a geared motor, a conveying frame, a control valve, and a swing rod. The upper part of the support frame is connected to the hanger, and the material cylinder is connected to the hanger. The upper right part of the material cylinder is provided with a feed inlet, and the lower left part of the material cylinder is provided with a discharge outlet. The right side of the material cylinder is connected to the geared motor. The conveying frame is rotatably connected inside the material cylinder and is connected to the output shaft of the geared motor. The control valve is rotatably connected inside the feed inlet of the material cylinder, and the bottom of the control valve is connected to a swing rod. The swing rod is in a pressing fit with the conveying frame.

[0007] In one embodiment, the barrel is tilted, with the left side of the barrel being higher than the right side.

[0008] In one embodiment, the system further includes a fixed frame, a water tank with a pump, a connecting pipe, and a cooling plate. The fixed frame is connected to the lower part of the support frame, the water tank with a pump is connected to the fixed frame, the cooling plate is connected to the outside of the material cylinder, and a connecting pipe connects the cooling plate and the water tank with a pump.

[0009] In one embodiment, the cooling plate has an arc-shaped structure.

[0010] In one embodiment, the system also includes a pneumatic pump and an air supply pipe. The pneumatic pump is connected to the upper left side of the support frame, and an air supply pipe is connected between the pneumatic pump and the feed inlet of the material cylinder.

[0011] In one embodiment, a connector is provided on the left side of the air pump.

[0012] Compared with the prior art, the present invention has the following advantages: 1. When the present invention conveys materials through the conveying frame, the pump water tank injects coolant into the cooling plate through the connecting plate. The coolant circulates in the cooling plate, which can cool the material cylinder, reduce the heat generated by friction when conveying powder, and avoid the problem of spontaneous combustion of powder.

[0013] 2. This utility model controls the rotation of the conveying frame through the output shaft of the geared motor, which conveys the powder falling into the material cylinder to the discharge port for discharge. When the conveying frame rotates, it will repeatedly squeeze the swing rod. The swing rod swings and drives the control valve to rotate, which enables the control valve to automatically open and close repeatedly for intermittent feeding.

[0014] 3. In this invention, a pneumatic pump injects nitrogen into the feed inlet through a gas delivery pipe during feeding. The nitrogen mixes with the powder and is conveyed together by a screw conveyor. Nitrogen is a non-flammable inert gas. By introducing nitrogen into the feed inlet, the oxygen content in the air can be diluted, reducing the chance of oxygen coming into contact with the combustible powder, thereby reducing the risk of combustion. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the material conveying frame, material control valve, and swing rod of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the present invention, including components such as a pump tank, connecting pipe, and cooling plate.

[0018] Figure 4 This is a three-dimensional structural diagram of the components of this utility model, including the feed inlet, air pump, and air delivery pipe.

[0019] The labels in the diagram are as follows: 1. Support frame, 2. Hanger, 3. Material cylinder, 301. Inlet, 302. Outlet, 4. Gear motor, 5. Conveying frame, 6. Control valve, 7. Swing rod, 8. Fixing frame, 9. Water tank with pump, 10. Connecting pipe, 11. Cooling plate, 12. Air pump, 13. Air supply pipe. Detailed Implementation

[0020] The above-described solution will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of this application. The implementation conditions used in the embodiments may be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are generally those in routine experiments.

[0021] A spiral feeding device for fireworks raw materials, such as Figures 1-4 As shown, it includes a support frame 1, a hanger 2, a material cylinder 3, a feed inlet 301, a discharge outlet 302, a geared motor 4, a conveying frame 5, a control valve 6, and a swing rod 7. The support frame 1 is connected to the upper part of the hanger 2, and the material cylinder 3 is connected to the hanger 2. The upper right part of the material cylinder 3 has a feed inlet 301, and the lower left part of the material cylinder 3 has a discharge outlet 302. The geared motor 4 is connected to the right side of the material cylinder 3. The conveying frame 5 is rotatably connected inside the material cylinder 3, and the conveying frame 5 is connected to the output shaft of the geared motor 4. A control valve 6 is rotatably connected inside the feed inlet 301 of the cylinder 3. A swing rod 7 is connected to the bottom of the control valve 6. The swing rod 7 is squeezed and cooperated with the conveyor frame 5. The powder enters the cylinder 3 through the feed inlet 301, and the output shaft of the geared motor 4 controls the rotation of the conveyor frame 5 to transport the powder falling into the cylinder 3 to the discharge outlet 302 for discharge. When the conveyor frame 5 rotates, it will repeatedly squeeze the swing rod 7. The swing rod 7 swings and drives the control valve 6 to rotate, so that the control valve 6 opens and closes repeatedly for intermittent feeding. The material cylinder 3 has an overall inclined structure, with the left side of the material cylinder 3 being higher than the right side, which is conducive to using gravity to help the powder move more smoothly during the conveying process; It also includes a fixed frame 8, a water tank with a pump 9, a connecting pipe 10, and a cooling plate 11. The fixed frame 8 is connected to the lower part of the support frame 1, and the water tank with a pump 9 is connected to the fixed frame 8. The cooling plate 11 is connected to the outside of the material cylinder 3. The connecting pipe 10 is connected between the cooling plate 11 and the water tank with a pump 9. When the material conveying frame 5 conveys material, the water tank with a pump 9 injects coolant into the cooling plate 11 through the connecting plate. The coolant circulates in the cooling plate 11 to cool the material cylinder 3, reduce the heat generated by friction when conveying powder, and prevent the powder from spontaneously combusting. The cooling plate 11 has an arc-shaped structure, which can fit the shape of the barrel 3 and improve the cooling effect; It also includes a pneumatic pump 12 and a gas delivery pipe 13. The pneumatic pump 12 is connected to the upper left side of the support frame 1. The gas delivery pipe 13 is connected between the pneumatic pump 12 and the feed inlet 301 of the material cylinder 3. Before feeding, the pneumatic pump 12 is connected to a nitrogen conveyor. During feeding, the pneumatic pump 12 injects nitrogen into the feed inlet 301 through the gas delivery pipe 13. The nitrogen is mixed with the powder and conveyed together by a screw conveyor. Nitrogen is a non-flammable inert gas. By introducing nitrogen into the feed inlet 301, the oxygen content in the air can be diluted, reducing the chance of oxygen coming into contact with the combustible powder, thereby reducing the risk of combustion. The air pump 12 has a connector on its left side for easy connection to air delivery equipment; In use, the powder enters the material cylinder 3 through the feed inlet 301, while the output shaft of the geared motor 4 controls the rotation of the conveyor frame 5, which transports the powder falling into the material cylinder 3 to the discharge outlet 302 for discharge. When the conveyor frame 5 rotates, it repeatedly squeezes the swing rod 7, and the swing rod 7 swings, driving the control valve 6 to rotate, causing the control valve 6 to open and close repeatedly for intermittent feeding. When the conveyor frame 5 is feeding, the pump water tank 9 injects coolant into the cooling plate 11 through the connecting plate, and the coolant circulates within the cooling plate 11. The material cylinder 3 is cooled to reduce the heat generated by friction during powder conveying and prevent spontaneous combustion of the powder. Before feeding, the pneumatic pump 12 is connected to a nitrogen conveyor. During feeding, the pneumatic pump 12 injects nitrogen into the feed inlet 301 through the gas delivery pipe 13. The nitrogen is mixed with the powder and conveyed together by the screw conveyor. Nitrogen is a non-flammable inert gas. By introducing nitrogen into the feed inlet 301, the oxygen content in the air can be diluted, reducing the chance of oxygen coming into contact with the combustible powder, thereby reducing the risk of combustion.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A spiral feeding device for fireworks raw materials, characterized in that it includes: It has a support frame (1), a hanger (2), a material cylinder (3), a feed port (301), a discharge port (302), a geared motor (4), a conveyor frame (5), a control valve (6), and a swing rod (7). The upper part of the support frame (1) is connected to the hanger (2), and the material cylinder (3) is connected to the hanger (2). The upper right part of the material cylinder (3) is provided with a feed port (301), and the lower left part of the material cylinder (3) is provided with a discharge port (302). The right side of the material cylinder (3) is connected to the geared motor (4). The material conveyor frame (5) is rotatably connected inside the material cylinder (3). The material conveyor frame (5) is connected to the output shaft of the geared motor (4). The material control valve (6) is rotatably connected inside the feed port (301) of the material cylinder (3). The bottom of the control valve (6) is connected to the swing rod (7). The swing rod (7) is squeezed and cooperated with the material conveyor frame (5).

2. The spiral feeding device for fireworks raw materials as described in claim 1, characterized in that, The material cylinder (3) has an overall inclined structure, with the left side of the material cylinder (3) being higher than the right side.

3. The spiral feeding device for fireworks raw materials as described in claim 2, characterized in that, It also includes a fixed frame (8), a water tank with a pump (9), a connecting pipe (10) and a cooling plate (11). The fixed frame (8) is connected to the lower part of the support frame (1), the water tank with a pump (9) is connected to the fixed frame (8), the cooling plate (11) is connected to the outside of the material cylinder (3), and the connecting pipe (10) is connected between the cooling plate (11) and the water tank with a pump (9).

4. The spiral feeding device for fireworks raw materials as described in claim 3, characterized in that, The cooling plate (11) has an arc-shaped structure.

5. The spiral feeding device for fireworks raw materials as described in claim 4, characterized in that, It also includes a pneumatic pump (12) and an air supply pipe (13). The pneumatic pump (12) is connected to the upper left side of the support frame (1), and the air supply pipe (13) is connected between the pneumatic pump (12) and the feed inlet (301) of the material cylinder (3).

6. The spiral feeding device for fireworks raw materials as described in claim 5, characterized in that, The air pump (12) has a connector on the left side.

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