An anti-static and non-residue feeding device for fireworks raw material proportioning

By designing an anti-static and residual feeding device in the firework production equipment, the combined structure of the mixing rack and the mixing box is used to improve the mixing efficiency, and eliminate static electricity through electrostatic detection and ion fan, the problems of low mixing efficiency and potential static in existing equipment are solved, and more efficient and safe firework production is achieved.

CN119733414AInactive Publication Date: 2025-04-01CHANGSHA YUHONG ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Application Number
CN202510260823.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2025-04-01
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The mixing structure of existing firework production equipment can only be stirred at a fixed position, resulting in low mixing efficiency and agitation blind spots.

Method used

An anti-static residual feeding device is designed, including a mixing mechanism and a feeding mechanism. The mixing mechanism adopts a combination of a mixing rack and a mixing box. The mixing rack rotates periodically forward and reversely and rotates with the semicircular rack to drive the mixing box to improve mixing efficiency. At the same time, the device is equipped with an electrostatic detection module and an ion fan to monitor and eliminate static electricity in real time.

Benefits of technology

It improves the mixing efficiency of firework raw materials, realizes automatic intermittent discharge, ensures the safety of the production process, and effectively eliminates static potential.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention belongs to the technical field of fireworks production, and in particular, is an anti-static and non-residue feeding device for fireworks raw material proportioning, comprising a mixing mechanism and a feeding mechanism installed on a table, the mixing mechanism comprising a mixing box located above the table, brackets fixed on the table are respectively arranged on both sides of the mixing box, a semicircular frame is rotatably connected to the top of the bracket through a first rotating shaft, a stirring frame is rotatably connected between the two semicircular frames, a first connecting rod is respectively fixed to the two ends of the stirring frame, a second connecting rod is rotatably connected to the top of the first connecting rod, the other end of the second connecting rod is rotatably connected to the bracket, a sliding column is slidably connected to the semicircular frame, and one end of the two semicircular frames away from the first rotating shaft is fixedly connected by a connecting column. In the present invention, the stirring frame can mix the fireworks raw materials in the mixing box and drive the mixing box to move together, thereby further improving the mixing efficiency of the internal fireworks raw materials.
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Description

Technical Field

[0001] The invention relates to the technical field of fireworks production, and in particular to an anti-static and non-residue feeding device for proportioning fireworks raw materials. Background Art

[0002] Fireworks are also called fireworks, fireworks, firecrackers, and cannons. According to the "China Fireworks and Firecrackers Standards - Safety and Quality", fireworks and firecrackers are defined as entertainment products that use pyrotechnic powder as raw materials to produce sound, light and color. In fact, the structure of fireworks is similar to that of firecrackers, and both contain black powder and medicine. In order to achieve a good performance effect, fireworks and display shells are filled with a large amount of gunpowder for launching and exploding. For example, a display shell with a diameter of 20 cm will rise to a height of about 200 meters after being launched before it explodes, and the radius covered by these stars can be about 80 meters.

[0003] In order to solve the problems of complex structure and inconvenient operation of existing equipment, a Chinese patent with publication number CN218872013U discloses a raw material stirring device for fireworks production, including: a stirring barrel; a mounting plate, the mounting plate is fixedly connected to the circumferential surface of the stirring barrel, and the upper end of the mounting plate is fixedly connected to a frame; a stirring mechanism, the stirring mechanism includes a rectangular plate, a rotating rod, a stirring blade and a connecting assembly, the rectangular plate is threadedly connected to the upper end of the frame by bolts, the rotating rod is rotatably connected to the side end of the rectangular plate, the stirring blade is fixedly connected to the circumferential surface of the rotating rod, and the connecting assembly is arranged on the upper side of the rectangular plate to realize the rotation of the rotating rod. Although the existing technical problems have been solved, the following problems still exist: The stirring structure adopted in this technical solution can only stir at a fixed position, and there are certain stirring dead angles, which leads to low mixing efficiency. Therefore, corresponding improvements are made to address this problem. Summary of the invention

[0004] Based on the technical problems existing in the prior art, the present invention proposes an anti-static and residue-free feeding device for fireworks raw material proportioning.

[0005] The present invention proposes an anti-static and residue-free feeding device for proportioning fireworks raw materials, comprising a mixing mechanism and a feeding mechanism installed on a table, wherein the mixing mechanism comprises a mixing box located above the table, and brackets fixed to the table are respectively arranged on both sides of the mixing box, and the top of the bracket is rotatably connected to a semicircular frame through a first rotating shaft, and a same stirring frame located inside the mixing box is rotatably connected between the two semicircular frames, and first connecting rods are respectively fixed to the two ends of the stirring frame, and the top of the first connecting rod is rotatably connected to the second connecting rod through a sliding column, and the other end of the second connecting rod is rotatably connected to the bracket, and the sliding column is slidably connected to the semicircular frame, and the ends of the two semicircular frames away from the first rotating shaft are fixedly connected through a connecting column, and a sleeve frame is sleeved on the connecting column, and the sleeve frame A driving component is connected, and a mixing box is connected to a positioning component; when mixing fireworks raw materials, the driving component periodically pulls the connecting column up and down through the sleeve, and the connecting column will synchronously drive the two semicircular frames to rotate up and down around the first rotating shaft. When the semicircular frames rotate, the sliding column moves along the arc-shaped sliding groove on the semicircular frames, and the first connecting rod and the second connecting rod also rotate accordingly. Then the first connecting rod will synchronously drive the stirring frame to periodically rotate forward and reverse, so as to mix the fireworks raw materials in the mixing box, and because the inner cavity structure of the mixing box just covers the stirring frame, with the cooperation of the positioning component, the stirring frame will synchronously drive the mixing box to move when it rotates with the semicircular frame, thereby further improving the mixing efficiency of the internal fireworks raw materials.

[0006] Preferably, the driving assembly includes an electric push rod, which is fixed on the top of the table, and the output shaft of the electric push rod is fixedly connected to the bottom end of the sleeve; the output shaft of the electric push rod performs periodic telescopic movement, which can drive the sleeve to reciprocate in the up and down directions.

[0007] Preferably, the driving assembly includes a motor, which is fixed to the top of the table through a motor frame, and the motor output shaft is fixedly connected to a disc, and the edge of the disc close to the sleeve frame is rotatably connected to a support rod, the other end of the support rod is rotatably connected to the sleeve frame, and the bottom end of the sleeve frame is slidably connected to a positioning sleeve, and the positioning sleeve is fixed to the top of the table; the motor output shaft drives the disc to rotate, and when the disc rotates, it drives the sleeve frame to move back and forth periodically along the direction of the positioning sleeve through the support rod.

[0008] Preferably, the positioning assembly includes a pair of frames fixed on the top of the table plate, a pair of cross bars are passed between the two frames, and each cross bar is passed through a pair of vertical bars, and the top of the vertical bar is fixedly connected to the bottom of the mixing box; through the cooperation of the vertical bar and the cross bar, the mixing box is limited in the vertical direction, and through the cooperation of the cross bar and the frame, the mixing box is limited in the horizontal direction, so that the mixing box can follow the stirring frame to move accordingly.

[0009] Preferably, a feed port is provided at the top of the mixing box, a cover plate is provided on the feed port, a discharge pipe is provided at the bottom of the mixing box, and a gate valve assembly is provided on the discharge pipe; in this way, well-proportioned fireworks raw materials can be added into the mixing box from the feed port, and then the mixed fireworks raw materials can be discharged from the discharge pipe under the control of the gate valve assembly.

[0010] Preferably, the gate valve assembly includes a gate plate, a socket for inserting the gate plate is provided on the discharge pipe, a blanking hole is provided at one end of the gate plate, an elastic connection is formed between the gate plate and the discharge pipe, and a baffle that can contact the end of the gate plate is fixed on the top of the table plate near the blanking hole; when the mixing box moves to the lowest position, the end of the gate plate on the discharge pipe will be blocked by the baffle plate and move to one side along the socket, and then the blanking hole will enter the interior of the discharge pipe, at this time, the fireworks raw materials will be discharged through the blanking hole, and when the mixing box moves upward, the gate plate will be reset under the action of elastic force, and the discharge pipe will be closed, thereby realizing automatic intermittent discharge, a guide column is inserted at the bottom of the gate plate, the end of the guide column is fixedly connected to the discharge pipe, a spring is sleeved on the guide column, and the two ends of the spring are respectively fixedly connected to the discharge pipe and the gate plate; in this way, the elastic force of the spring can act on the gate plate to reset the gate plate.

[0011] Preferably, the cover plate is fixed in the feed port, and a plurality of batching hoppers are arranged above the mixing box. The bottom outlet of the batching hopper is connected to a first antistatic conveying hose, and the bottom end of the first antistatic conveying hose is connected to the cover plate. The outer wall of the batching hopper is installed with no less than two explosion-proof vibrators distributed up and down, and an explosion-proof driving ball valve is also installed on the pipeline of the batching hopper, so that a single type of fireworks raw material can be placed in the corresponding batching hopper respectively, and then by opening the explosion-proof driving ball valve, the raw material will automatically enter the mixing box, and the explosion-proof vibrator can generate vibration on the batching hopper, so that the raw material is in an activated state, avoiding feed blockage and preventing raw material agglomeration, and an explosion-proof weighing sensor is also installed on the batching hopper, which adopts subtraction metering to accurately control the raw material ratio.

[0012] Preferably, the feeding mechanism is an auger loader, which is located below a tabletop with an opening on it, and a feed pipe of the auger loader is fixed in the opening; after the fireworks raw materials fall from the discharge pipe, they enter the feed pipe of the auger loader, and then the auger loader transports the mixed fireworks raw materials to a designated location for feeding.

[0013] Preferably, an electrostatic detection module is fixed on the inner wall of one side of the mixing box, an ion blower is embedded on the top of the mixing box, and a data processing module and a control module are fixed on the outer wall of one side of the mixing box. The electrostatic detection module is used to detect the electrostatic field strength in the mixing box in real time, and the data processing module is used to receive the signal from the electrostatic detection module, analyze and process the data, and analyze the electrostatic data through a built-in algorithm to determine whether the electrostatic field strength exceeds the set safety threshold. The control module is used to control the operation of the ion blower according to the analysis results of the data processing module. When the electrostatic field strength exceeds the safety threshold, the control module starts the ion blower. When the electrostatic field strength is lower than the safety threshold, the control module appropriately adjusts the working intensity of the ion blower or suspends it.

[0014] Preferably, the electrostatic field strength calculation formula is: ; in: is the electrostatic field strength, is the electrostatic force constant, is the charge of the point charge, is the distance from the point charge; The calculation formula for static electricity removal time is: ; in: is the time required to neutralize static electricity, is the initial electrostatic charge, is the ion current density, is the effective area.

[0015] Compared with the prior art, the present invention provides an anti-static and residue-free feeding device for fireworks raw material proportioning, which has the following beneficial effects: 1. An anti-static and non-residue feeding device for proportioning fireworks raw materials. By setting a stirring frame and a mixing box, when mixing the fireworks raw materials, the stirring frame performs periodic forward and reverse rotations to mix the fireworks raw materials in the mixing box, and when the stirring frame rotates with the semicircular frame, it will also synchronously drive the mixing box to move together, thereby further improving the mixing efficiency of the internal fireworks raw materials.

[0016] 2. An anti-static and residue-free feeding device for proportioning fireworks raw materials. By setting a gate valve assembly, when the mixing box moves to the lowest position, the gate on the discharge pipe will move to one side, and the fireworks raw materials will be discharged through the drop hole. When the mixing box moves upward, the gate will reset under the action of elastic force and close the discharge pipe, thereby realizing automatic intermittent discharge.

[0017] 3. An anti-static and residue-free feeding device for fireworks raw material mixing can monitor the electrostatic field strength in the fireworks raw material mixing box in real time and accurately by setting up an electrostatic detection module, timely discover static electricity hazards, and eliminate static electricity through an intelligent control algorithm. It can quickly and effectively eliminate static electricity in the mixing box, greatly improving the safety of the fireworks production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of an anti-static and non-residue feeding device for fireworks raw material proportioning proposed by the present invention; Figure 2 This is a schematic diagram of the installation structure between the stirring frame and the bracket of an anti-static and non-residue feeding device for fireworks raw material proportioning proposed by the present invention; Figure 3 This is a schematic diagram of the installation structure between a stirring frame and a mixing box of an anti-static and non-residue feeding device for fireworks raw material proportioning proposed by the present invention; Figure 4 For the present invention Figure 1 A schematic diagram of the enlarged structure at point A; Figure 5 This is a schematic diagram of the installation structure between the drive assembly and the table of an anti-static and non-residue feeding device for fireworks raw material proportioning proposed by the present invention; Figure 6 This is a schematic diagram of the structure of a driving component of an anti-static and non-residue feeding device for fireworks raw material proportioning proposed by the present invention; Figure 7 This is a schematic diagram of the structure of the positioning components of an anti-static and non-residue feeding device for fireworks raw material proportioning proposed by the present invention; Figure 8 This is a schematic diagram of the side structure of a mixing box of an anti-static and non-residue feeding device for fireworks raw material proportioning proposed by the present invention; Fig. 9 For the present invention Figure 7 A schematic diagram of the enlarged structure at B; Fig.10 This is a schematic diagram of the structure of a feeding mechanism of an anti-static and non-residue feeding device for fireworks raw material proportioning proposed by the present invention; Fig.11 This is a schematic diagram of the installation structure of the second anti-static conveying hose of an anti-static and residue-free feeding device for fireworks raw material proportioning proposed by the present invention; Fig.12 This is a schematic diagram of the installation structure of a batching hopper of an anti-static and non-residue feeding device for fireworks raw material proportioning proposed by the present invention; Fig.13This is a schematic diagram of the structure of a batching hopper of an anti-static and non-residue feeding device for mixing fireworks raw materials proposed by the present invention; Fig.14 This is a schematic diagram of an anti-static and residue-free feeding device for fireworks raw material proportioning proposed by the present invention.

[0019] In the figure: 1, table; 2, bracket; 3, first rotating shaft; 4, semicircular frame; 5, connecting column; 6, stirring frame; 7, first connecting rod; 8, sliding column; 9, second connecting rod; 10, mixing box; 11, sleeve frame; 12, electric push rod; 13, motor frame; 14, motor; 15, disc; 16, support rod; 17, positioning sleeve; 18, vertical rod; 19, horizontal rod; 20, frame; 21, feeding port; 22, cover plate; 23, Discharge pipe; 24, socket; 25, gate; 26, drop hole; 27, guide column; 28, spring; 29, baffle; 30, auger loader; 31, opening; 32, electrostatic detection module; 33, ion fan; 34, data processing module; 35, control module; 36, batching hopper; 37, explosion-proof vibrator; 38, explosion-proof drive ball valve; 39, first anti-static conveying hose; 40, second anti-static conveying hose. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] Reference Figure 1-Figure 14, an anti-static and non-residue feeding device for proportioning fireworks raw materials, comprising a mixing mechanism and a feeding mechanism installed on a table 1, the mixing mechanism comprising a mixing box 10 located above the table 1, and brackets 2 fixed on the table 1 are respectively arranged on both sides of the mixing box 10, and the top of the bracket 2 is rotatably connected with a semicircular frame 4 through a first rotating shaft 3, and a stirring frame 6 located inside the mixing box 10 is rotatably connected between the two semicircular frames 4, and first connecting rods 7 are respectively fixed at both ends of the stirring frame 6, and the top of the first connecting rod 7 is rotatably connected with a second connecting rod 9 through a sliding column 8, and the other end of the second connecting rod 9 is rotatably connected to the bracket 2, and the sliding column 8 is slidably connected to the semicircular frame 4, and the ends of the two semicircular frames 4 away from the first rotating shaft 3 are fixedly connected through a connecting column 5, and a sleeve frame 11 is sleeved on the connecting column 5, and the sleeve frame 11 is connected with a driving component, and the mixing box 10 is connected with a positioning component; It should be noted that when mixing the fireworks raw materials, the driving component periodically pulls the connecting column 5 up and down through the sleeve 11, and the connecting column 5 will synchronously drive the two semicircular frames 4 to rotate up and down around the first rotating shaft 3. When the semicircular frames 4 rotate, the sliding column 8 moves along the arc-shaped slide groove on the semicircular frames 4, and the first connecting rod 7 and the second connecting rod 9 also rotate accordingly. Then the first connecting rod 7 will synchronously drive the stirring frame 6 to perform periodic forward and reverse rotations, thereby mixing the fireworks raw materials in the mixing box 10, and because the inner cavity structure of the mixing box 10 just covers the stirring frame 6, with the cooperation of the positioning component, the stirring frame 6 will synchronously drive the mixing box 10 to move when it rotates with the semicircular frames 4, thereby further improving the mixing efficiency of the internal fireworks raw materials.

[0023] In embodiment 1, the driving assembly includes an electric push rod 12, which is fixed to the top of the table 1, and the output shaft of the electric push rod 12 is fixedly connected to the bottom end of the sleeve 11; It should be noted that the output shaft of the electric push rod 12 can drive the sleeve frame 11 to reciprocate in the up and down directions by periodically extending and retracting the output shaft.

[0024] In Example 2, the driving assembly includes a motor 14, which is fixed to the top of the table 1 through a motor frame 13, and the output shaft of the motor 14 is fixedly connected to a disc 15, and the edge of the disc 15 close to the sleeve 11 is rotatably connected to a support rod 16, and the other end of the support rod 16 is rotatably connected to the sleeve 11, and the bottom end of the sleeve 11 is slidably connected to a positioning sleeve 17, and the positioning sleeve 17 is fixed to the top of the table 1; It should be noted that the output shaft of the motor 14 drives the disc 15 to rotate, and when the disc 15 rotates, it drives the sleeve frame 11 to move back and forth periodically along the direction of the positioning sleeve 17 through the support rod 16.

[0025] The positioning assembly includes a pair of frames 20 fixed on the top of the table 1, a pair of cross bars 19 are inserted between the two frames 20, and a pair of vertical bars 18 are inserted on each cross bar 19, and the top of the vertical bar 18 is fixedly connected to the bottom of the mixing box 10; It should be noted that, through the cooperation of the vertical rod 18 and the horizontal rod 19, the mixing box 10 is limited in the vertical direction, and through the cooperation of the horizontal rod 19 and the frame 20, the mixing box 10 is limited in the horizontal direction, so that the mixing box 10 can move accordingly with the stirring frame 6.

[0026] Furthermore, a feed port 21 is provided at the top of the mixing box 10, a cover plate 22 is provided on the feed port 21, a discharge pipe 23 is provided at the bottom of the mixing box 10, and a gate valve assembly is provided on the discharge pipe 23; It should be noted that, in this way, the well-proportioned fireworks raw materials can be added into the mixing box 10 from the feed port 21 , and then the mixed fireworks raw materials can be discharged from the discharge pipe 23 through the gate valve assembly.

[0027] The gate valve assembly includes a gate plate 25, a socket 24 for inserting the gate plate 25 is provided on the discharge pipe 23, a blanking hole 26 is provided at one end of the gate plate 25, an elastic connection is formed between the gate plate 25 and the discharge pipe 23, and a blocking plate 29 capable of contacting the end of the gate plate 25 is fixed on the top of the platform 1 near the blanking hole 26; It should be noted that when the mixing box 10 moves to the lowest position, the end of the gate 25 on the discharge pipe 23 will be blocked by the baffle 29 and move to one side along the socket 24, and then the discharge hole 26 will enter the interior of the discharge pipe 23. At this time, the fireworks raw materials will be discharged through the discharge hole 26. When the mixing box 10 moves upward, the gate 25 will be reset under the action of elastic force, closing the discharge pipe 23, thereby realizing automatic intermittent discharge.

[0028] A guide post 27 is inserted at the bottom of the gate 25, and the end of the guide post 27 is fixedly connected to the discharge pipe 23. A spring 28 is sleeved on the guide post 27, and the two ends of the spring 28 are fixedly connected to the discharge pipe 23 and the gate 25 respectively. It should be noted that, in this way, the elastic force of the spring 28 can act on the gate plate 25, so that the gate plate 25 is reset.

[0029] Further, the cover plate 22 is fixed in the feed port 21, and a plurality of batching hoppers 36 are arranged above the mixing box 10, and the bottom outlet of the batching hopper 36 is connected to a first anti-static conveying hose 39, and the bottom end of the first anti-static conveying hose 39 is connected to the cover plate 22. The outer wall of the batching hopper 36 is installed with no less than two explosion-proof vibrators 37 distributed up and down, and an explosion-proof driving ball valve 38 is also installed on the pipeline of the batching hopper 36; It should be noted that in this way, a single type of fireworks raw material can be placed in the corresponding batching hopper 36 respectively, and then by opening the explosion-proof driving ball valve 38, the raw material will automatically enter the mixing box 10, and the explosion-proof vibrator 37 can generate vibration on the batching hopper 36, so that the raw material is in an activated state, avoiding feed blockage and preventing the raw material from agglomerating. In addition, an explosion-proof weighing sensor is installed on the batching hopper 36, and subtraction metering is adopted to accurately control the raw material ratio.

[0030] The feeding mechanism is an auger loader 30, which is located below the table 1. An opening 31 is provided on the table 1, and a feed pipe of the auger loader 30 is fixed in the opening 31. It should be noted that after the fireworks raw materials fall from the discharge pipe 23, they will enter the feed pipe of the auger feeder 30, and then the auger feeder 30 will transport the mixed fireworks raw materials to the designated location for feeding; Furthermore, considering that a lot of fireworks dust will enter the air when the fireworks raw materials enter the auger feeder 30 from the discharge pipe 23, the discharge pipe 23 and the feed pipe of the auger feeder 30 are connected by 40 (such as Fig.11 ), which can prevent fireworks raw materials from entering the external environment, thereby effectively reducing the amount of dust in the production process and reducing the risk of fire and explosion.

[0031] In Example 3, an electrostatic detection module 32 is fixed to the inner wall of one side of the mixing box 10, an ion fan 33 is embedded on the top of the mixing box 10, and a data processing module 34 and a control module 35 are fixed to the outer wall of one side of the mixing box 10. The electrostatic detection module 32 is used to detect the electrostatic field strength in the mixing box 10 in real time. The data processing module 34 is used to receive the signal transmitted by the electrostatic detection module 32, analyze and process the data, and analyze the electrostatic data through a built-in algorithm to determine whether the electrostatic field strength exceeds the set safety threshold. The control module 35 is used to control the operation of the ion fan 33 according to the analysis result of the data processing module 34. When the electrostatic field strength exceeds the safety threshold, the control module 35 starts the ion fan 33. When the electrostatic field strength is lower than the safety threshold, the control module 35 appropriately adjusts the working intensity of the ion fan 33 or suspends the operation. It should be noted that the electrostatic detection module 32 can be a capacitive electrostatic sensor or other device that can detect the electrostatic field strength in the mixing box 10 in real time, and its output signal is proportional to the electrostatic field strength; the data processing module 34 can use a microprocessor, such as the common ARM series microprocessor; the ion fan 33 neutralizes the electrostatic charge in the mixing box 10 by generating positive and negative ions, thereby achieving the purpose of removing static electricity.

[0032] Furthermore, according to Coulomb's law, the electrostatic field strength generated by a point charge is The calculation formula is: ; in: is the electrostatic field strength, is the electrostatic force constant, is the charge of the point charge, It is the distance from the point charge. In practical applications, the electrostatic field in the mixing box 10 is the combined field strength generated by multiple charges. The value of the combined field strength is measured by the electrostatic detection module 32.

[0033] Calculation of static electricity removal time: Assume that the initial static electricity charge in the mixing box 10 is , the ion flow density generated by the ion fan 33 is , the effective area required to neutralize static electricity in the mixing box 10 is , then the time required to neutralize static electricity It can be estimated by the formula: ; in: is the time required to neutralize static electricity, is the initial electrostatic charge, is the ion current density, is the effective area.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An anti-static and non-residue feeding device for mixing fireworks raw materials, comprising a mixing mechanism and a feeding mechanism mounted on a table (1), characterized in that: The mixing mechanism comprises a mixing box (10) located above a table (1), and brackets (2) fixed to the table (1) are respectively arranged on both sides of the mixing box (10), and the top of the bracket (2) is rotatably connected to a semicircular frame (4) via a first rotating shaft (3), and a stirring frame (6) located inside the mixing box (10) is rotatably connected between the two semicircular frames (4), and first connecting rods (7) are respectively fixed to both ends of the stirring frame (6), and the top of the first connecting rod (7) is rotatably connected to a second connecting rod (9) via a sliding column (8), and the other end of the second connecting rod (9) is rotatably connected to the bracket (2), and the sliding column (8) is slidably connected to the semicircular frame (4), and the ends of the two semicircular frames (4) away from the first rotating shaft (3) are fixedly connected via a connecting column (5), and a sleeve frame (11) is sleeved on the connecting column (5), and the sleeve frame (11) is connected to a driving component, and the mixing box (10) is connected to a positioning component.

2. The anti-static and non-residue feeding device for fireworks raw material proportioning according to claim 1 is characterized in that: The driving assembly comprises an electric push rod (12), the electric push rod (12) is fixed on the top of the table (1), and the output shaft of the electric push rod (12) is fixedly connected to the bottom end of the sleeve frame (11).

3. The anti-static and non-residue feeding device for fireworks raw material proportioning according to claim 1, characterized in that: The driving assembly comprises a motor (14), the motor (14) being fixed to the top of the table (1) via a motor frame (13), the output shaft of the motor (14) being fixedly connected to a disc (15), the edge of a side of the disc (15) close to the sleeve frame (11) being rotatably connected to a support rod (16), the other end of the support rod (16) being rotatably connected to the sleeve frame (11), the bottom end of the sleeve frame (11) being slidably connected to a positioning sleeve (17), the positioning sleeve (17) being fixed to the top of the table (1).

4. The anti-static and non-residue feeding device for fireworks raw material proportioning according to claim 1, characterized in that: The positioning assembly comprises a pair of frames (20) fixed on the top of the table (1), a pair of cross bars (19) passing through the two frames (20), a pair of vertical bars (18) passing through each cross bar (19), and the top ends of the vertical bars (18) are fixedly connected to the bottom of the mixing box (10).

5. The anti-static and non-residue feeding device for fireworks raw material proportioning according to claim 1, characterized in that: The top of the mixing box (10) is provided with a feed port (21), a cover plate (22) is provided on the feed port (21), and the bottom of the mixing box (10) is provided with a discharge pipe (23), a gate valve assembly is provided on the discharge pipe (23).

6. The anti-static and non-residue feeding device for fireworks raw material proportioning according to claim 5, characterized in that: The gate valve assembly comprises a gate plate (25), a socket (24) for inserting the gate plate (25) is provided on the discharge pipe (23), a blanking hole (26) is provided at one end of the gate plate (25), an elastic connection is formed between the gate plate (25) and the discharge pipe (23), a blocking plate (29) capable of contacting the end of the gate plate (25) is fixed on the top of the table (1) near the blanking hole (26), a guide column (27) is inserted at the bottom of the gate plate (25), the end of the guide column (27) is fixedly connected to the discharge pipe (23), a spring (28) is sleeved on the guide column (27), and the two ends of the spring (28) are respectively fixedly connected to the discharge pipe (23) and the gate plate (25).

7. The anti-static and non-residue feeding device for fireworks raw material proportioning according to claim 5, characterized in that: The cover plate (22) is fixed in the feed port (21), and a plurality of batching hoppers (36) are arranged above the mixing box (10). The bottom outlet of the batching hopper (36) is connected to a first antistatic conveying hose (39), and the bottom end of the first antistatic conveying hose (39) is connected to the cover plate (22). The outer wall of the batching hopper (36) is installed with no less than two explosion-proof vibrators (37) distributed up and down, and an explosion-proof driving ball valve (38) is also installed on the pipeline of the batching hopper (36).

8. The anti-static and non-residue feeding device for fireworks raw material proportioning according to claim 5, characterized in that: The feeding mechanism is an auger loader (30), the auger loader (30) is located below the table plate (1), an opening (31) is provided on the table plate (1), and a feed pipe of the auger loader (30) is fixed in the opening (31).

9. The anti-static and non-residue feeding device for fireworks raw material proportioning according to claim 1, characterized in that: An electrostatic detection module (32) is fixed to an inner wall of one side of the mixing box (10); an ion blower (33) is embedded on the top of the mixing box (10); and a data processing module (34) and a control module (35) are fixed to an outer wall of one side of the mixing box (10); the electrostatic detection module (32) is used to detect the electrostatic field strength in the mixing box (10) in real time; the data processing module (34) is used to receive a signal transmitted by the electrostatic detection module (32), analyze and process the data, and analyze the electrostatic data using a built-in algorithm to determine whether the electrostatic field strength exceeds a set safety threshold; the control module (35) is used to control the operation of the ion blower (33) according to the analysis result of the data processing module (34); when the electrostatic field strength exceeds the safety threshold, the control module (35) starts the ion blower (33); when the electrostatic field strength is lower than the safety threshold, the control module (35) appropriately adjusts the working intensity of the ion blower (33) or suspends the operation.

10. The anti-static and non-residue feeding device for fireworks raw material proportioning according to claim 9, characterized in that: The calculation formula for the electrostatic field strength is: ; in: is the electrostatic field strength, is the electrostatic force constant, is the charge of the point charge, is the distance from the point charge; The calculation formula for static electricity removal time is: ; in: is the time required to neutralize static electricity, is the initial electrostatic charge, is the ion current density, is the effective area.

Citation Information

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