Fireworks and crackers liquid mixing safety production process
The liquid mixing process replaces traditional dry mixing in the production of fireworks and firecrackers, and combines the use of modified bentonite and other chemical substances, the explosion and pollution problems in traditional processes are solved, and the effects of safety, environmental protection and product quality improvement are achieved.
Patent Information
- Application Number
- CN202510007999.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2025-03-14
AI Technical Summary
In the traditional fireworks and firecracker production process, drugs are highly sensitive after mixing, mixing and filling, which can easily cause explosion accidents, and dust is generated during dry screening and dry mixing, which seriously pollutes the environment and easily causes explosions.
The liquid mixing method is used to replace the traditional dry mixing. By adding modified bentonite, metal powder, potassium perchlorate and sulfur to the starch slurry, it forms a mixed slurry, and vibration treatment is performed in the sealed barrel and dry and dehydration at low temperature.
It eliminates the explosion hazard of traditional production processes, avoids dust pollution, improves the long-term water resistance and antibacterial properties of the product, and extends the storage time of the product.
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Figure CN119617982A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of fireworks and firecrackers production, in particular to a fireworks and firecrackers liquid mixing safety production process. Background Art
[0002] In the production process of traditional fireworks and firecrackers, the drugs need to go through dry screening, dry mixing, dry filling and other procedures. Dry screening refers to the screening of a single type of dry drugs before dry mixing; dry mixing refers to mixing the dry screened dry drugs; dry filling refers to filling the dry mixed drugs into the tube.
[0003] The drugs involved are highly sensitive during mixing, after mixing and in the filling process, and improper operation may cause explosion accidents; and dust will be generated during dry screening and dry mixing, which not only seriously pollutes the environment, but also easily causes explosions when the dust reaches a certain concentration. The use of this traditional fireworks and firecrackers production process has great safety hazards. Based on this, a fireworks and firecrackers liquid mixing safety production process is proposed. Summary of the invention
[0004] In order to address the deficiencies in the prior art, the present invention provides a safe production process for liquid mixing of fireworks and firecrackers, which adopts liquid mixing to replace traditional dry mixing. During the process, no explosion will occur due to friction and the process will not be affected by changes in ambient temperature, thus eliminating the dangers of traditional production processes.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fireworks and firecrackers liquid mixing safety production process, comprising the following steps:
[0006] (1) adding modified bentonite to starch slurry and stirring evenly to obtain slurry;
[0007] (2) Pour metal powder, potassium perchlorate and sulfur into the slurry in batches and stir evenly to form a mixed slurry;
[0008] (3) Filling the mixed slurry into a tube with a sealed bottom, vibrating the tube to compact the mixed slurry inside, and then inserting a paper sheet into the top of the tube and sealing it with glue;
[0009] (4) The sealed bobbin is sent to a drying room for drying to obtain a finished product.
[0010] Preferably, in step (1), starch slurry is prepared as follows: starch and water are placed in a stirrer in a mass ratio of 1:3 and heated and stirred until bubbles appear, and the heating and stirring are continued for 5 minutes. After cooling to room temperature, starch slurry is obtained.
[0011] Preferably, in step (1), the modified bentonite is prepared as follows: S1, pouring potassium sorbate and water into a reactor, heating and stirring until the potassium sorbate is completely dissolved to obtain a solution; S2, immersing the bentonite in the solution, then filtering it out and performing a steam explosion treatment; S3, immersing and steam-exploding the bentonite for multiple times, and then drying it to obtain the modified bentonite.
[0012] Preferably, in step S1, the material-liquid ratio of potassium sorbate to water is 1:(1-2) g / ml; and the heating and stirring temperature is 65-70°C.
[0013] Preferably, in steps S2-S3, the immersion time is controlled to be 20-30 minutes; and the steam explosion temperature is controlled to be 120-150°C.
[0014] Preferably, in step (2), the metal powder is aluminum powder, magnesium powder, aluminum-magnesium alloy powder or aluminum-silver alloy powder.
[0015] Preferably, in step (2), the contents of the raw materials in the mixed slurry are as follows, by mass percentage: 2-5% modified bentonite, 15-20% potassium perchlorate, 20-25% metal powder, 10-15% sulfur, and the remainder is starch slurry.
[0016] Preferably, in step (3), the vibration treatment is to place the tube into the bearing channel of the mold, expand the airbag to wrap the tube tightly, and then vibrate the tube through a vibration table to compact the mixed slurry in the tube.
[0017] Preferably, the airbags in each group of bearing channels are connected in sequence, and the expansion or contraction of the airbags is controlled by an external air pump; the vibration treatment time is 10-20s.
[0018] Preferably, in step (4), the ambient temperature in the drying room is controlled to be 35-45° C., and the ambient humidity in the drying room is below 15%.
[0019] The present invention provides a safe production process for liquid mixing of fireworks and firecrackers, which has the following beneficial effects compared with the prior art:
[0020] The invention adopts starch and water to prepare fluid liquid slurry, then mixes metal powder, potassium perchlorate and sulfur with the liquid slurry, and performs low-temperature drying and dehydration after filling. During the process, no explosion will occur due to friction, and no influence will be caused by changes in ambient temperature, thereby eliminating the danger of traditional production processes; at the same time, no smoke and dust will be generated, thus solving the environmental pollution problem that has been difficult to completely solve in the production industry for a long time.
[0021] The invention loads potassium sorbate in bentonite to form modified bentonite, and adds the modified bentonite into starch slurry, thereby finally improving the long-term water resistance and antibacterial property of the colloid, effectively solving the problem that the starch colloid is easy to absorb water, deliquescence and breed bacteria, and prolonging the storage time of the product; specifically, bentonite is rich in cations, and the cations form complexes with hydroxyl and carboxyl groups in the colloid, thereby reducing the water absorption of the colloid.
[0022] The invention performs multiple impregnation and steam explosion treatments on bentonite. Steam explosion is beneficial to opening the gaps of bentonite and increasing the loading amount of potassium sorbate in the bentonite, thereby improving the antibacterial performance of the colloid. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:
[0024] Figure 1 It is a schematic diagram of the vibration table, bearing channel, airbag and mold structure in the present invention. DETAILED DESCRIPTION
[0025] The following examples are used to explain the implementation methods of the present application in detail, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.
[0026] Example 1
[0027] The starch slurry was prepared as follows: starch and water were placed in a blender at a mass ratio of 1:3 and heated and stirred until bubbles appeared, and the heating and stirring were continued for 5 minutes. After cooling to room temperature, the starch slurry was obtained.
[0028] Example 2
[0029] Modified bentonite was prepared as follows:
[0030] S1. Pour potassium sorbate and water into a reactor at a material-liquid ratio of 1:1 g / ml, and stir at 70° C. until the potassium sorbate is completely dissolved to obtain a solution;
[0031] S2, immersing bentonite in the dissolving solution for 20 minutes, then filtering out and performing steam explosion treatment; controlling the steam explosion temperature to be 120°C;
[0032] S3. Perform multiple (2 times) impregnation and steam explosion treatments on the bentonite, followed by drying to obtain modified bentonite.
[0033] Example 3
[0034] Modified bentonite was prepared as follows:
[0035] S1. Pour potassium sorbate and water into a reactor at a material-liquid ratio of 1:2 g / ml, and stir at 65° C. until the potassium sorbate is completely dissolved to obtain a solution;
[0036] S2, immersing bentonite in the dissolving solution for 30 minutes, then filtering out and performing steam explosion treatment; controlling the steam explosion temperature to be 150°C;
[0037] S3. The bentonite is subjected to multiple (3 times) impregnation and steam explosion treatments, followed by drying to obtain modified bentonite.
[0038] Example 4
[0039] A fireworks and firecrackers liquid mixing safety production process comprises the following steps:
[0040] (1) adding modified bentonite (prepared in Example 2) to starch slurry (prepared in Example 1) and stirring evenly to obtain slurry;
[0041] (2) pouring aluminum-magnesium alloy powder, potassium perchlorate and sulfur into the slurry in batches, stirring evenly to form a mixed slurry;
[0042] In terms of mass percentage, the contents of the raw materials in the mixed slurry are as follows: 5% of modified bentonite, 15% of potassium perchlorate, 25% of aluminum-magnesium alloy powder, 10% of sulfur, and the remainder is starch slurry;
[0043] (3) Filling the mixed slurry into a tube with a sealed bottom, vibrating the tube to compact the mixed slurry inside, and then inserting a paper sheet into the top of the tube and sealing it with glue;
[0044] The above-mentioned vibration treatment is to put the tube into the bearing channel of the mold, expand the airbag to wrap the tube tightly, and then vibrate the tube through the vibration table to compact the mixed slurry in the tube; the airbags in each group of bearing channels are connected in sequence, and the expansion or contraction of the airbags is controlled by an external air pump; the vibration treatment time is 20s;
[0045] (4) The sealed bobbin is sent to a drying room for drying, during which the ambient temperature in the drying room is controlled at 45° C. and the ambient humidity in the drying room is controlled below 15%, thereby obtaining a finished product.
[0046] Example 5
[0047] A fireworks and firecrackers liquid mixing safety production process comprises the following steps:
[0048] (1) adding modified bentonite (prepared in Example 3) to the starch slurry (prepared in Example 1) and stirring evenly to obtain a slurry;
[0049] (2) pouring aluminum-silver alloy powder, potassium perchlorate and sulfur into the slurry in batches and stirring evenly to form a mixed slurry;
[0050] In terms of mass percentage, the contents of the raw materials in the mixed slurry are as follows: 2% of modified bentonite, 20% of potassium perchlorate, 20% of aluminum-silver alloy powder, 15% of sulfur, and the remainder is starch slurry;
[0051] (3) Filling the mixed slurry into a tube with a sealed bottom, vibrating the tube to compact the mixed slurry inside, and then inserting a paper sheet into the top of the tube and sealing it with glue;
[0052] The above-mentioned vibration treatment is to put the tube into the bearing channel of the mold, expand the airbag to wrap the tube tightly, and then vibrate the tube through the vibration table to compact the mixed slurry in the tube; the airbags in each group of bearing channels are connected in sequence, and the expansion or contraction of the airbags is controlled by an external air pump; the vibration treatment time is 10s;
[0053] (4) The sealed bobbin is sent to a drying room for drying, during which the ambient temperature in the drying room is controlled at 35° C. and the ambient humidity in the drying room is controlled below 15%, thereby obtaining a finished product.
[0054] Example 6
[0055] A fireworks and firecrackers liquid mixing safety production process comprises the following steps:
[0056] (1) adding modified bentonite (prepared in Example 3) to the starch slurry (prepared in Example 1) and stirring evenly to obtain a slurry;
[0057] (2) Pour aluminum powder, potassium perchlorate and sulfur into the slurry in batches and stir evenly to form a mixed slurry;
[0058] In terms of mass percentage, the contents of the raw materials in the mixed slurry are as follows: 3% of modified bentonite, 18% of potassium perchlorate, 22% of aluminum powder, 12% of sulfur, and the remainder is starch mortar;
[0059] (3) Filling the mixed slurry into a tube with a sealed bottom, vibrating the tube to compact the mixed slurry inside, and then inserting a paper sheet into the top of the tube and sealing it with glue;
[0060] The above-mentioned vibration treatment is to put the tube into the bearing channel of the mold, expand the airbag to wrap the tube tightly, and then vibrate the tube through the vibration table to compact the mixed slurry in the tube; the airbags in each group of bearing channels are connected in sequence, and the expansion or contraction of the airbags is controlled by an external air pump; the vibration treatment time is 15s;
[0061] (4) The sealed bobbin is sent to a drying room for drying, during which the ambient temperature in the drying room is controlled at 40° C. and the ambient humidity in the drying room is controlled below 15%, thereby obtaining a finished product.
[0062] Comparative Example 1
[0063] The preparation of the slurry is as follows: bentonite is added to the starch slurry (prepared in Example 1), the amount of bentonite added is the same as that in Example 6, and stirred evenly to obtain the slurry.
[0064] Comparative Example 2
[0065] The preparation of the slurry is as follows: potassium sorbate is added to the starch slurry (prepared in Example 1), the amount of potassium sorbate added being 0.2% of the slurry, and the mixture is stirred evenly to obtain the slurry.
[0066] Comparative Example 3
[0067] The preparation of the mortar is as follows: add modified bentonite to the starch mortar (prepared in Example 1), the addition amount of the modified bentonite is the same as that in Example 6, and stir evenly to obtain the mortar.
[0068] The above modified bentonite is prepared as follows:
[0069] S1. Pour potassium sorbate and water into a reactor at a material-liquid ratio of 1:2 g / ml, and stir at 65° C. until the potassium sorbate is completely dissolved to obtain a solution;
[0070] S2. Soak the bentonite in the dissolving solution for 30 minutes, then filter out and dry it to obtain modified bentonite.
[0071] Quality Inspection
[0072] The mortar materials prepared in Examples 4-6 and Comparative Examples 1-3 were used as samples for testing. The test results are shown in Table 1.
[0073] 1. Water resistance test
[0074] The above sample was coated between two sets of plates with a coating amount of 200g / m 2 , press, dry and solidify, then immerse in warm water at 30℃, and record the automatic debonding time as the water resistance time.
[0075] 2. Antibacterial test
[0076] The sample was dried and fixed to form a film; referring to ASTM E1428-15a standard, the mildew resistance of Penicillium mold on the film sample was tested, a sample with a radius of 1 cm was placed in a culture dish containing Penicillium mold, cultured at room temperature, and the erosion of the mold on the film surface was observed.
[0077] Table 1 Water resistance and antibacterial properties
[0078]
[0079] From the above table, we can see that:
[0080] (1) The performance of the mortar obtained in Comparative Example 1 in terms of water resistance and antibacterial properties is not as good as that in Example 6, indicating that the addition of modified bentonite can indeed improve the quality of the mortar;
[0081] (2) The water resistance of the mortar in Comparative Example 2 is far inferior to that of Example 6 and Comparative Example 1, indicating that the use of modified bentonite or bentonite can indeed improve the water resistance of the mortar; however, the antibacterial failure of the mortar in Comparative Example 2 is fast, indicating that bentonite can achieve the slow release of potassium sorbate, thereby prolonging the antibacterial time.
[0082] (3) The mortar in Comparative Example 3 is slightly inferior to that in Example 6, indicating that steam explosion treatment can increase the loading amount of bentonite on potassium sorbate to improve the quality of the mortar.
[0083] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A fireworks and firecrackers liquid mixing safety production process, characterized in that: The following steps are involved: (1) adding modified bentonite to starch slurry and stirring evenly to obtain slurry; (2) Pour metal powder, potassium perchlorate and sulfur into the slurry in batches and stir evenly to form a mixed slurry; (3) Filling the mixed slurry into a tube with a sealed bottom, vibrating the tube to compact the mixed slurry inside, and then inserting a paper sheet into the top of the tube and sealing it with glue; (4) The sealed bobbin is sent to a drying room for drying to obtain a finished product.
2. The fireworks and firecrackers liquid mixing safety production process according to claim 1 is characterized in that: In step (1), starch slurry is prepared as follows: starch and water are placed in a stirrer in a mass ratio of 1:3, heated and stirred until bubbles appear, and the heating and stirring are continued for 5 minutes. After cooling to room temperature, starch slurry is obtained.
3. The fireworks and firecrackers liquid mixing safety production process according to claim 1 is characterized in that: In step (1), the modified bentonite is prepared as follows: S1, pouring potassium sorbate and water into a reactor, heating and stirring until the potassium sorbate is completely dissolved to obtain a solution; S2, immersing bentonite in a dissolving solution, then filtering out and performing steam explosion treatment; S3. Performing multiple impregnation and steam explosion treatments on the bentonite, followed by drying to obtain modified bentonite.
4. The fireworks and firecrackers liquid mixing safety production process according to claim 3 is characterized in that: In step S1, the material-liquid ratio of potassium sorbate to water is 1:(1-2) g / ml; and the heating and stirring temperature is 65-70°C.
5. The fireworks and firecrackers liquid mixing safety production process according to claim 3 is characterized in that: In steps S2-S3, the immersion time is controlled to be 20-30 minutes; and the steam explosion temperature is controlled to be 120-150°C.
6. The fireworks and firecrackers liquid mixing safety production process according to claim 1 is characterized in that: In step (2), the metal powder is aluminum powder, magnesium powder, aluminum-magnesium alloy powder or aluminum-silver alloy powder.
7. The fireworks and firecrackers liquid mixing safety production process according to claim 1 is characterized in that: In step (2), the contents of the raw materials in the mixed slurry are as follows, by mass percentage: 2-5% of modified bentonite, 15-20% of potassium perchlorate, 20-25% of metal powder, 10-15% of sulfur, and the remainder is starch slurry.
8. The fireworks and firecrackers liquid mixing safety production process according to claim 1 is characterized in that: In step (3), the vibration treatment is to place the tube into the bearing channel of the mold, expand the air bag to wrap the tube tightly, and then vibrate the tube through a vibration table to compact the mixed slurry in the tube.
9. The fireworks and firecrackers liquid mixing safety production process according to claim 8, characterized in that: The airbags in each group of bearing channels are connected in sequence, and the expansion or contraction of the airbags is controlled by an external air pump; the vibration treatment time is 10-20s.
10. The fireworks and firecrackers liquid mixing safety production process according to claim 1, characterized in that: In step (4), the ambient temperature in the drying room is controlled to be 35-45° C., and the ambient humidity in the drying room is controlled to be below 15%.