A raw material drying and crushing device for firecracker processing

By introducing components such as heaters, stirring racks, and exhaust fans into the firecracker processing equipment, the problems of uneven heating and dust accumulation during the raw material drying and crushing process have been solved, achieving uniform heating and efficient cleaning, and improving production quality.

CN224443126UActive Publication Date: 2026-07-03SHANGLI COUNTY JINYU FIREWORKS & FIRECRACKERS MANUFACTURING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGLI COUNTY JINYU FIREWORKS & FIRECRACKERS MANUFACTURING CO LTD
Filing Date
2025-06-13
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing firecracker processing equipment suffers from uneven heating of raw materials and accumulation of dust and gas during the drying and crushing process, which affects production quality and makes cleaning difficult.

Method used

The drying chamber uses a heater and a stirring rack for uniform heating, and a temperature sensor controls the temperature between 40°C and 60°C. A vacuum pump and a filter are used to treat the dust gas, and the mixture is pulverized using a pulverizing wheel and gear system.

Benefits of technology

It achieves uniform heating and crushing of raw materials, reduces dust and gas accumulation, and improves production quality and cleaning efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a raw material drying and crushing device for firecracker processing, including the crushing box, the fixedly connected with drying box body on the crushing box, the fixedly connected with the feed pipe on drying box body, the fixedly connected with first support frame on drying box body, the fixed mounting of first support frame has first drive motor, the first driving motor output shaft is connected with first pivot, and the first pivot is installed with the stirring frame, and a plurality of heaters are installed on drying box body, and temperature sensor is installed on drying box body. The utility model discloses through the heat of heater to the raw material drying work, and first drive motor drives first pivot and stirring frame rotation, and stirring frame agitates raw material, makes raw material can even heat, and temperature sensor detects the temperature in drying box body, makes temperature control between 40 DEG C to 60 DEG C, avoids high temperature and leads to decomposition or combustion.
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Description

Technical Field

[0001] This utility model belongs to the field of firecracker processing technology, and in particular relates to a raw material drying and pulverizing device for firecracker processing. Background Technology

[0002] Firecrackers need to be processed and proportioned before they are made into finished products. The raw materials need to be crushed, dried, and then mixed in a certain proportion.

[0003] Utility model patent CN212040772U discloses a raw material drying and pulverizing device for fireworks processing. The device includes a base, a support rod fixedly mounted on the upper surface of the base, a support bracket fixedly mounted on the other end of the support rod, a drying chamber fixedly mounted on the upper surface of the support bracket, and a control panel fixedly mounted on the front surface of the support bracket. The drying chamber is equipped with a dehumidifying and drying device, and a side cover is installed on the left side of the drying chamber. A viewing window is fixedly mounted on the front surface of the drying chamber, and a pulverizing chamber is fixedly mounted on the upper surface of the drying chamber. A second discharge port is fixedly mounted on the lower surface of the drying chamber, and a valve is installed on the side of the second discharge port. A pulverizing protection device is provided on the upper surface of the pulverizing chamber. However, this device does not agitate the raw materials during drying, which can lead to uneven heating and reduced processing quality. Furthermore, dust and gas are generated internally during pulverizing, and prolonged accumulation increases cleaning difficulty. Therefore, this invention proposes a raw material drying and pulverizing device for fireworks processing. Utility Model Content

[0004] The purpose of this invention is to provide a raw material drying and pulverizing device for firecracker processing, so as to solve the problems mentioned in the background art.

[0005] A raw material drying and pulverizing device for firecracker processing includes a pulverizing chamber, a drying chamber fixedly connected to the pulverizing chamber, a feed pipe fixedly connected to the drying chamber, a first support frame fixedly connected to the drying chamber, a first drive motor fixedly mounted on the first support frame, a first rotating shaft connected to the output shaft of the first drive motor, a stirring rack mounted on the first rotating shaft, multiple heaters mounted on the drying chamber, a temperature sensor mounted on the drying chamber, a discharge pipe connecting the pulverizing chamber and the drying chamber, a second support frame fixedly connected to the pulverizing chamber, a second drive motor fixedly mounted on the second support frame, two second rotating shafts rotatably connected to the pulverizing chamber, a second rotating shaft near the second support frame connected to the output shaft of the second drive motor, gears mounted on the second rotating shafts, two meshing gears, a pulverizing wheel mounted on the second rotating shafts, a dust sensor installed inside the pulverizing chamber, a second mounting frame fixedly connected to the pulverizing chamber, a second exhaust fan fixedly mounted on the second mounting frame, a third air pipe connected to the second exhaust fan and a fourth air pipe connected to the second exhaust fan.

[0006] Furthermore, a first electric valve is installed on the feed pipe.

[0007] Furthermore, a fixed frame is fixedly connected to the drying chamber, an electric push rod is fixedly installed on the fixed frame, a connecting rod is connected to the telescopic rod of the electric push rod, the connecting rod is slidably connected to the drying chamber, and a pusher block is connected to the connecting rod.

[0008] Furthermore, a second electric valve is installed on the discharge pipe.

[0009] Furthermore, a first mounting bracket is fixedly connected to the drying chamber, a first exhaust fan is fixedly installed on the first mounting bracket, a first air pipe is connected between the first exhaust fan and the drying chamber, and a second air pipe is connected to the first exhaust fan.

[0010] Furthermore, the inside of the crushing chamber is equipped with inclined plates.

[0011] The beneficial effects of this utility model are:

[0012] 1. This utility model uses the heat generated by the heater to dry the raw materials. The first drive motor drives the first rotating shaft and the stirring rack to rotate. The stirring rack stirs the raw materials so that they can be heated evenly. The temperature sensor detects the temperature inside the drying chamber and controls the temperature between 40°C and 60°C to avoid decomposition or combustion caused by high temperature.

[0013] 2. This utility model uses a crushing wheel to crush raw materials. During the crushing process, dust gas is inevitably generated. The second air extractor will extract the dust gas and allow it to flow into a designated external filter through the third and fourth air pipes. The dust sensor will detect the dust gas concentration inside the crushing chamber and adjust the working efficiency of the second air extractor accordingly. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the raw material drying and pulverizing device for firecracker processing according to this utility model;

[0015] Figure 2 This is a first cross-sectional three-dimensional structural diagram of the crushing chamber;

[0016] Figure 3 This is a second cross-sectional perspective view of the three-dimensional structure of the crushing chamber.

[0017] Figure 4 This is a first cross-sectional three-dimensional structural diagram of the crushing chamber;

[0018] Figure 5 This is a second cross-sectional three-dimensional structural diagram of the crushing chamber.

[0019] In the diagram, 1-grinding chamber, 2-drying chamber, 3-feed pipe, 4-first electric valve, 5-first support frame, 6-first drive motor, 7-first rotating shaft, 8-stirring rack, 9-heater, 10-temperature sensor, 11-fixed frame, 12-electric push rod, 13-connecting rod, 14-push block, 15-discharge pipe, 16-second electric valve, 17-first mounting frame, 18-first vacuum pump, 19-first air pipe, 20-second air pipe, 21-second support frame, 22-second drive motor, 23-second rotating shaft, 24-gear, 25-grinding wheel, 26-dust sensor, 27-second mounting frame, 28-second vacuum pump, 29-third air pipe, 30-fourth air pipe. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] like Figures 1 to 5 The firecracker processing raw material drying and pulverizing device of this utility model includes a pulverizing chamber 1, a drying chamber 2 fixedly connected to the pulverizing chamber 1, a feed pipe 3 fixedly connected to the drying chamber 2, a first support frame 5 fixedly connected to the drying chamber 2, a first drive motor 6 fixedly mounted on the first support frame 5, a first rotating shaft 7 connected to the output shaft of the first drive motor 6, a stirring frame 8 mounted on the first rotating shaft 7 for stirring the raw materials, multiple heaters 9 mounted on the drying chamber 2 for heating the raw materials, a temperature sensor 10 mounted on the drying chamber 2 for detecting and limiting the internal temperature of the drying chamber 2, and a discharge pipe 15 connecting the pulverizing chamber 1 and the drying chamber 2. A second support frame 21 is fixedly connected to the crushing chamber 1. A second drive motor 22 is fixedly installed on the second support frame 21. Two second rotating shafts 23 are rotatably connected to the crushing chamber 1. The second rotating shaft 23 near the second support frame 21 is connected to the output shaft of the second drive motor 22. Gears 24 are installed on the second rotating shafts 23. The two gears 24 mesh. A crushing wheel 25 is installed on the second rotating shafts 23. The crushing wheel 25 is used to crush raw materials. A dust sensor 26 is installed inside the crushing chamber 1. A second mounting frame 27 is fixedly connected to the crushing chamber 1. A second vacuum pump 28 is fixedly installed on the second mounting frame 27. A third air pipe 29 is connected between the second vacuum pump 28 and the crushing chamber 1. A fourth air pipe 30 is connected to the second vacuum pump 28.

[0022] The first electric valve 4 is installed on the feed pipe 3.

[0023] A fixed frame 11 is fixedly connected to the drying chamber 2. An electric push rod 12 is fixedly installed on the fixed frame 11. A connecting rod 13 is connected to the telescopic rod of the electric push rod 12. The connecting rod 13 is slidably connected to the drying chamber 2. A pusher block 14 is connected to the connecting rod 13. The pusher block 14 is used to push the raw material.

[0024] A second electric valve 16 is installed on the discharge pipe 15.

[0025] A first mounting bracket 17 is fixedly connected to the drying chamber 2. A first exhaust fan 18 is fixedly installed on the first mounting bracket 17. The first exhaust fan 18 is used to extract hot air. A first air pipe 19 is connected between the first exhaust fan 18 and the drying chamber 2. A second air pipe 20 is connected to the first exhaust fan 18.

[0026] An inclined plate is installed inside the crushing chamber 1.

[0027] The working principle of this utility model is as follows: After the raw material is injected into the drying chamber through the feed pipe, the first electric valve is controlled to close the feed pipe. Then, the first drive motor, the first vacuum pump, and the heater start to work. The heat generated by the heater dries the raw material. The first drive motor drives the first rotating shaft and the stirring rack to rotate. The stirring rack agitates the raw material so that it can be heated evenly. The temperature sensor detects the temperature inside the drying chamber and controls the temperature between 40°C and 60°C to avoid decomposition or combustion caused by high temperature. During the drying process, water vapor will be discharged from the raw material. The first vacuum pump will extract the water vapor and hot air, so that the water vapor is discharged through the first air pipe and the second air pipe to prevent water vapor from re-entering the raw material.

[0028] After the raw materials are dried, the second electric valve opens the discharge pipe, and the dried raw materials flow into the crushing chamber through the discharge pipe. To prevent any raw materials from remaining in the drying chamber, the electric push rod drives the connecting rod and the pusher block to move, so that the pusher block pushes the remaining raw materials to the discharge pipe. The second drive motor drives the second rotating shaft, gears, and crushing wheel to rotate. The raw materials flowing into the crushing chamber fall into the crushing wheel, which crushes the raw materials. During the crushing process, dust and gas are inevitably generated. The second exhaust fan extracts the dust and gas, allowing it to flow into a designated external filter through the third and fourth air pipes. The dust sensor detects the dust and gas concentration inside the crushing chamber, thereby adjusting the working efficiency of the second exhaust fan.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A raw material drying and pulverizing device for firecracker processing, characterized in that: A raw material drying and pulverizing device for firecracker processing includes a pulverizing chamber, a drying chamber fixedly connected to the pulverizing chamber, a feed pipe fixedly connected to the drying chamber, a first support frame fixedly connected to the drying chamber, a first drive motor fixedly mounted on the first support frame, a first rotating shaft connected to the output shaft of the first drive motor, a stirring rack mounted on the first rotating shaft, multiple heaters mounted on the drying chamber, a temperature sensor mounted on the drying chamber, a discharge pipe connected between the pulverizing chamber and the drying chamber, a second support frame fixedly connected to the pulverizing chamber, a second drive motor fixedly mounted on the second support frame, two second rotating shafts rotatably connected to the pulverizing chamber, the second rotating shaft near the second support frame connected to the output shaft of the second drive motor, gears mounted on the second rotating shafts, two meshing gears, a pulverizing wheel mounted on the second rotating shafts, a dust sensor installed inside the pulverizing chamber, a second mounting frame fixedly connected to the pulverizing chamber, a second exhaust fan fixedly mounted on the second mounting frame, a third air pipe connected between the second exhaust fan and the pulverizing chamber, and a fourth air pipe connected to the second exhaust fan.

2. The raw material drying and pulverizing device for firecracker processing according to claim 1, characterized in that: The first electric valve is installed on the feed pipe.

3. The raw material drying and pulverizing device for firecracker processing according to claim 1, characterized in that: A fixed frame is fixedly connected to the drying chamber, and an electric push rod is fixedly installed on the fixed frame. A connecting rod is connected to the telescopic rod of the electric push rod. The connecting rod is slidably connected to the drying chamber, and a pusher block is connected to the connecting rod.

4. The raw material drying and pulverizing device for firecracker processing according to claim 1, characterized in that: A second electric valve is installed on the discharge pipe.

5. The raw material drying and pulverizing device for firecracker processing according to claim 1, characterized in that: A first mounting bracket is fixedly connected to the drying chamber, a first exhaust fan is fixedly installed on the first mounting bracket, a first air pipe is connected between the first exhaust fan and the drying chamber, and a second air pipe is connected to the first exhaust fan.

6. The raw material drying and pulverizing device for firecracker processing according to claim 1, characterized in that: The inside of the crushing chamber is equipped with an inclined plate.