A material distributing and mixing device with explosion-proof function

By designing an explosion-proof material mixing device, and utilizing negative pressure suction and vibrating screening technology, the problem of dust accumulation was solved, enabling immediate dust discharge and uniform mixing of gunpowder particles, thereby improving the safety and efficiency of fireworks production.

CN224293163UActive Publication Date: 2026-05-29JIANGXI LONGEN INTELLIGENT EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI LONGEN INTELLIGENT EQUIP CO LTD
Filing Date
2025-09-03
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing equipment has difficulty in removing dust in a timely manner during the mixing process, which leads to dust accumulation and poses a safety hazard.

Method used

A material mixing device with explosion-proof function was designed, including a hopper, explosion-proof cover, filter disc, air pump and interception net. Through negative pressure suction and vibrating screening, the device can achieve immediate discharge of dust and uniform mixing of gunpowder particles.

Benefits of technology

It effectively avoids dust accumulation, reduces safety hazards, and improves mixing efficiency and safety.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224293163U_ABST
    Figure CN224293163U_ABST
Patent Text Reader

Abstract

The utility model relates to fireworks production technical field especially relates to a material distribution and mixing device with explosion -proof function, the utility model provides a material distribution and mixing device with explosion -proof function can discharge dust in time in the mixing process, effectively avoid the dust accumulation produces the security risk, a material distribution and mixing device with explosion -proof function, including the placing table, telescopic column, first spring and material collecting hopper etc. The utility model under the negative pressure suction effect of the air pump makes the dust in the explosion -proof cover and material collecting hopper discharge in turn through the connecting cover and connecting pipe, and the gunpowder particles in the explosion -proof cover and material collecting hopper in the intercepting net are intercepted and filtered, which can discharge dust in time in the mixing process, effectively avoid the dust accumulation produces the security risk.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of fireworks production technology, and in particular to a material mixing and dispensing device with explosion-proof function. Background Technology

[0002] The spectacular effect of fireworks depends primarily on their gunpowder formulation, which typically contains oxidizers, combustibles, binders, and functional additives (flame colorants, combustion promoters, and propellants, etc.). Gunpowder particles are packaged within the fireworks, and these capsules ultimately cause the fireworks to explode. These particles also contain colorants and binders. Colorant chemicals help determine the different colors we see, while binders (usually dextrin) hold the fuel, oxidizer, and colorant together within the particles. When the package explodes, the chemical elements emit light, and the colorant produces very specific wavelengths visible to the naked eye. During fireworks production, the gunpowder particles need to be mixed to blend the different components and remove larger particles, ensuring a uniform distribution of the various components in the gunpowder. This prevents uneven or incomplete combustion, thus guaranteeing the uniformity and effectiveness of the fireworks' combustion.

[0003] Currently, when mixing gunpowder particles, different sizes of gunpowder particles are usually separated by a vibrating screen during the feeding process, and larger gunpowder particles are retained. The various gunpowder particles are mixed evenly during the vibrating screening process. However, dust is easily generated when screening gunpowder particles, and existing equipment cannot remove the generated dust in time. Gunpowder dust is flammable, and accumulated dust may cause fire or explosion.

[0004] Therefore, in response to the above problems, a material mixing device with explosion-proof function has been developed that can discharge dust in real time during the mixing process, effectively avoiding the safety hazards caused by dust accumulation. Utility Model Content

[0005] In order to overcome the shortcomings of existing devices that are difficult to discharge generated dust in a timely manner, this utility model provides a material mixing device with explosion-proof function that can discharge dust in a timely manner during the mixing process, effectively avoiding the safety hazards caused by dust accumulation.

[0006] The technical solution is as follows: A material mixing and dispensing device with explosion-proof function includes a placement platform, telescopic columns, a first spring, a hopper, a material control module, a material dispensing module, an explosion-proof cover, a filter disc, a top cover, a feed pipe, and explosion-proof components. Multiple telescopic columns are connected to the upper side of the placement platform. A hopper is connected between the telescopic ends of the telescopic columns. A first spring is connected between each telescopic column and the hopper. A material control module is connected to the lower part of the hopper. A material dispensing module is connected to the bottom of the hopper. An explosion-proof cover is connected to the top of the hopper. A filter disc is connected to the upper side of the hopper. A top cover is snapped onto the top of the explosion-proof cover. A feed pipe is connected to the middle of the top cover. Explosion-proof components are connected to the explosion-proof cover.

[0007] As a further preferred option, the hopper has a conical structure.

[0008] As a further preferred option, the material control module includes a first material control valve and a second material control valve, with the first material control valve connected to the middle of the hopper and the second material control valve connected to the lower part of the hopper.

[0009] As a further preferred option, the explosion-proof assembly includes a support frame, an air pump, a connecting pipe, a connecting cover, and an intercepting net. The support frame is connected to the placement platform, the air pump is connected to the support frame, the connecting cover is connected to the explosion-proof cover, the connecting pipe is connected between the connecting cover and the air pump, and the intercepting net is connected between the connecting cover and the explosion-proof cover.

[0010] As a further preferred embodiment, the explosion-proof assembly also includes a fixed post, a brush plate, and a second spring. The fixed post is connected to the explosion-proof cover, the brush plate is slidably connected to the fixed post, the brush plate is connected to the fixed post, and the brush plate is slidably connected to the explosion-proof cover.

[0011] As a further preferred option, it also includes hanging ropes and filter bags, with multiple hanging ropes connected to the underside of the top cover, and filter bags connected between the ends of the hanging ropes.

[0012] The beneficial effects of this utility model are: 1. Under the negative pressure suction of the air pump, the dust in the explosion-proof cover and the collection hopper is discharged in sequence through the connecting cover and the connecting pipe, and is intercepted and filtered by the explosion-proof cover and the gunpowder particles in the collection hopper in the interception net, which can achieve the effect of timely discharge of dust during the mixing process and effectively avoid the accumulation of dust and the generation of safety hazards.

[0013] 2. This utility model reduces the vibration amplitude of larger gunpowder particles by allowing them to enter the filter mesh bag. Under the action of the suspension rope and the filter mesh bag, the larger gunpowder particles are reduced, preventing them from falling back onto the filter disc. This reduces the possibility of larger gunpowder particles clogging the filter disc and ensures the efficiency of screening and mixing. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the material collection hopper, material control module, and material distribution module of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the explosion-proof cover, filter disc, and top cover of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the support frame, air pump, and connecting pipes of this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of the components of this utility model, including the fixing column, brush plate, and second spring.

[0019] Figure 6 This is a three-dimensional structural diagram of the hanging rope and filter net bag of this utility model.

[0020] The labels in the diagram are as follows: 1-Placement platform, 2-Telescopic column, 3-First spring, 4-Collection hopper, 5-Material control module, 6-Material distribution module, 7-Explosion-proof cover, 8-Filter disc, 9-Top cover, 10-Feed pipe, 11-Support frame, 12-Air pump, 13-Connecting pipe, 14-Connecting cover, 15-Interception net, 16-Fixing column, 17-Brush plate, 18-Second spring, 19-Hanging rope, 20-Filter net bag. Detailed Implementation

[0021] The technical solution will be further described below with reference to specific embodiments. It should be noted that the terms "up," "down," "left," and "right" used in this document refer only to the position of the structure shown in the corresponding drawings. The serial numbers assigned to components in this document, such as "first," "second," etc., are only used to distinguish the described objects and have no sequential or technical meaning. Unless otherwise specified, terms such as "connection" and "linkage" in this application include both direct and indirect connections (linkages).

[0022] A material mixing and dispensing device with explosion-proof function, such as Figures 1-6 As shown, the assembly includes a placement platform 1, telescopic columns 2, a first spring 3, a hopper 4, a material control module 5, a material distribution module 6, an explosion-proof cover 7, a filter disc 8, a top cover 9, a feed pipe 10, and explosion-proof components. Four telescopic columns 2 are connected to the upper side of the placement platform 1. The hopper 4 is connected between the telescopic ends of the telescopic columns 2. A first spring 3 connects each telescopic column 2 to the hopper 4. The material control module 5 is connected to the lower part of the hopper 4. The material distribution module 6 is connected to the bottom of the hopper 4. The explosion-proof cover 7 is connected to the top of the hopper 4. The filter disc 8 is connected to the upper side of the hopper 4. The top of the explosion-proof cover 7 is secured. The top cover 9 is connected to the middle of the top cover 9, and the explosion-proof cover 7 is connected to the explosion-proof component. Different gunpowder particles are conveyed to the collection hopper 4 and the explosion-proof cover 7 through the feeding pipe 10. Under the action of the telescopic column 2 and the first spring 3, the collection hopper 4 is controlled to vibrate up and down, thereby driving the filter plate 8 to vibrate up and down to screen the gunpowder particles. Larger gunpowder particles are trapped above the filter plate 8, while gunpowder particles that meet the requirements pass through the filter plate 8 and enter the collection hopper 4. Then, the material control module 5 and the material distribution module 6 control the quantitative discharge of the gunpowder particles that meet the requirements.

[0023] The collecting hopper 4 has a conical structure, which facilitates the gathering and guiding of the mixed gunpowder particles;

[0024] The material control module 5 includes a first material control valve and a second material control valve. The first material control valve is connected to the middle part of the collecting hopper 4, and the second material control valve is connected to the lower part of the collecting hopper 4. The first material control valve controls the opening of the middle channel of the collecting hopper 4, allowing the gunpowder particles in the upper part of the collecting hopper 4 to enter between the first material control valve and the second material control valve. Then, the first material control valve controls the closing of the middle channel of the collecting hopper 4, and the second material control valve controls the opening of the lower channel of the collecting hopper 4, allowing the gunpowder particles between the first material control valve and the second material control valve to be discharged through the material distribution module 6. Finally, the second material control valve controls the closing of the lower channel of the collecting hopper 4, thereby quantitatively discharging the uniformly mixed gunpowder particles.

[0025] The explosion-proof assembly includes a support frame 11, an air pump 12, a connecting pipe 13, a connecting cover 14, and an intercepting net 15. The support frame 11 is connected to the placement platform 1, the air pump 12 is connected to the support frame 11, the connecting cover 14 is connected to the explosion-proof cover 7, the connecting pipe 13 is connected between the connecting cover 14 and the air pump 12, and the intercepting net 15 is connected between the connecting cover 14 and the explosion-proof cover 7. Under the negative pressure suction of the air pump 12, the dust in the explosion-proof cover 7 and the collection hopper 4 is discharged sequentially through the connecting cover 14 and the connecting pipe 13, and is intercepted and filtered by the gunpowder particles in the explosion-proof cover 7 and the collection hopper 4 through the intercepting net 15.

[0026] The explosion-proof assembly also includes a fixed column 16, a brush plate 17, and a second spring 18. The fixed column 16 is connected to the explosion-proof cover 7, and the brush plate 17 is slidably connected to the fixed column 16. The second spring 18 is connected between the brush plate 17 and the fixed column 16, and the brush plate 17 is slidably connected to the explosion-proof cover 7. When the hopper 4 vibrates up and down, the brush plate 17 slides up and down on the fixed column 16 under the action of inertia and the second spring 18. The brush plate 17 cleans the dust attached to the interception net 15 and prevents the interception net 15 from being blocked.

[0027] It also includes suspension ropes 19 and filter bags 20. Four suspension ropes 19 are connected to the lower side of the top cover 9, and filter bags 20 are connected to the ends of the suspension ropes 19. Under the periodic vibration of the filter disc 8, since the gunpowder particles are in direct contact with the filter disc 8 and the filter disc 8 is rigidly connected to the collection hopper 4, the larger gunpowder particles that are trapped can be repeatedly vibrated. During the vibration, the larger gunpowder particles enter the filter bags 20, thereby reducing the vibration amplitude of the larger gunpowder particles under the action of the suspension ropes 19 and the filter bags 20, preventing them from falling back onto the filter disc 8. At the same time, it allows the gunpowder particles that meet the requirements to pass through the filter bags 20.

[0028] In use, this invention first needs to be installed in the operating area. Then, different gunpowder particles are conveyed to the collecting hopper 4 and explosion-proof cover 7 through the feed pipe 10. Under the action of the telescopic column 2 and the first spring 3, the collecting hopper 4 vibrates up and down, thereby causing the filter disc 8 to vibrate up and down to screen the gunpowder particles. Larger gunpowder particles are retained above the filter disc 8, while the gunpowder particles that meet the requirements pass through the filter disc 8 and enter the collecting hopper 4. During the mixing process, under the negative pressure suction of the air pump 12... This allows the dust in the explosion-proof enclosure 7 and the collecting hopper 4 to be discharged sequentially through the connecting cover 14 and the connecting pipe 13, and to be intercepted and filtered by the explosive particles in the explosion-proof enclosure 7 and the collecting hopper 4 within the intercepting net 15. When the collecting hopper 4 vibrates up and down, the brush plate 17 slides up and down on the fixed column 16 under the action of inertia and the second spring 18, cleaning the dust attached to the intercepting net 15 by the brush plate 17 to prevent the intercepting net 15 from clogging. Then, the middle channel of the collecting hopper 4 is opened by the first material control valve, allowing the dust in the collecting hopper 4 to flow freely. The gunpowder particles enter between the first and second control valves. The first control valve closes the middle channel of the collecting hopper 4, while the second control valve opens the lower channel of the collecting hopper 4, allowing the gunpowder particles between the first and second control valves to be discharged through the distribution module 6. The second control valve then closes the lower channel of the collecting hopper 4, thus quantitatively discharging the uniformly mixed gunpowder particles. Under the periodic vibration of the filter disc 8, since the gunpowder particles are in direct contact with the filter disc 8 and the filter disc 8 is rigidly connected to the collecting hopper 4, the larger gunpowder particles that are trapped can be repeatedly vibrated. During the vibration, the larger gunpowder particles enter the filter net 20, thereby reducing the vibration amplitude of the larger gunpowder particles under the action of the suspension rope 19 and the filter net 20, preventing them from falling back onto the filter disc 8. At the same time, it allows the gunpowder particles that accidentally enter and meet the requirements to pass through the filter net 20. The filter net 20 intercepts the larger gunpowder particles, effectively reducing the possibility of larger gunpowder particles clogging the filter disc 8.

[0029] It should be understood that the above description is for illustrative purposes only and is not intended to limit the present invention. Those skilled in the art will understand that variations of the present invention will be included within the scope of the claims herein.

Claims

1. A material mixing and dispensing device with explosion-proof function, characterized in that: It includes a placement platform (1), telescopic columns (2), a first spring (3), a collection hopper (4), a material control module (5), a material distribution module (6), an explosion-proof cover (7), a filter plate (8), a top cover (9), a feed pipe (10), and explosion-proof components. Multiple telescopic columns (2) are connected to the upper side of the placement platform (1). The telescopic ends of the telescopic columns (2) are connected to the collection hopper (4). The first spring (3) is connected between each telescopic column (2) and the collection hopper (4). The material control module (5) is connected to the lower part of the collection hopper (4). The material distribution module (6) is connected to the bottom of the collection hopper (4). The explosion-proof cover (7) is connected to the upper part of the collection hopper (4). The filter plate (8) is connected to the upper side of the collection hopper (4). The top cover (9) is snapped onto the top of the explosion-proof cover (7). The feed pipe (10) is connected to the middle of the top cover (9). The explosion-proof components are connected to the explosion-proof cover (7).

2. A material mixing and dispensing device with explosion-proof function according to claim 1, characterized in that: The hopper (4) has a conical structure.

3. A material mixing and dispensing device with explosion-proof function according to claim 1, characterized in that: The material control module (5) includes a first material control valve and a second material control valve. The first material control valve is connected to the middle of the material collection hopper (4), and the second material control valve is connected to the lower part of the material collection hopper (4).

4. A material mixing and dispensing device with explosion-proof function according to claim 1, characterized in that: The explosion-proof assembly includes a support frame (11), an air pump (12), a connecting pipe (13), a connecting cover (14), and an intercepting net (15). The support frame (11) is connected to the placement platform (1), the air pump (12) is connected to the support frame (11), the connecting cover (14) is connected to the explosion-proof cover (7), the connecting pipe (13) is connected between the connecting cover (14) and the air pump (12), and the intercepting net (15) is connected between the connecting cover (14) and the explosion-proof cover (7).

5. A material mixing and dispensing device with explosion-proof function according to claim 4, characterized in that: The explosion-proof assembly also includes a fixed post (16), a brush plate (17), and a second spring (18). The fixed post (16) is connected to the explosion-proof cover (7), and the brush plate (17) is slidably connected to the fixed post (16). The second spring (18) is connected between the brush plate (17) and the fixed post (16), and the brush plate (17) is slidably connected to the explosion-proof cover (7).

6. A material mixing and dispensing device with explosion-proof function according to claim 5, characterized in that: It also includes a hanging rope (19) and a filter bag (20). Multiple hanging ropes (19) are connected to the underside of the top cover (9), and filter bags (20) are connected between the ends of the hanging ropes (19).