Gypsum molded lump for fireworks and crackers building and preparation method of gypsum molded lump
Patent Information
- Application Number
- CN202411107643.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-13
- Publication Date
- 2024-12-27
AI Technical Summary
The existing fireworks and firecracker moldings rely on stone powder and cassava flour in the production process, resulting in high costs, environmental pollution and safety hazards, and requires high-temperature drying to increase electricity consumption.
Building gypsum, wood fiber and water are used as raw materials to prepare building gypsum molded lumps by calcining phosphogypsum. The natural molding and drying process is adopted to reduce the use of tapioca flour and wood fibers, and directly stir-forming with room temperature water to avoid high-temperature drying.
It reduces production costs, improves fire resistance, reduces environmental impact, improves production efficiency and safety, and realizes the resource utilization of phosphogypsum and solid waste absorption.
Smart Images
Figure BDA0004991271130000051
Abstract
Description
Technical Field
[0001] The present application belongs to the field of fireworks and firecracker materials, and in particular, relates to a fireworks and firecracker building gypsum molded lump and a preparation method thereof. Background Art
[0002] Early combination fireworks bases were mostly made of paper, and were almost all rolled into a cylindrical launch tube manually or semi-mechanized, and then glued together with glue. The quality of this type of fireworks base is heavily dependent on the quality of paper, the rolling machinery, the quality of glue, the quality of the base sealing material, and the level of manual operation. Too many uncertain factors will seriously affect the effect of fireworks and bring safety hazards. At present, combination fireworks bases are mostly made of stone powder as the main raw material and cassava flour as the adhesive, which has achieved a large replacement of paper fireworks bases. However, large-scale stone powder mining will cause serious ecological damage and environmental pollution.
[0003] At present, the main raw materials used for molded lumps of fireworks and firecrackers are stone powder and cassava flour, and the auxiliary materials are admixtures such as stearic acid and wood fiber. The production process is to add hot water (90-100℃) to the raw and auxiliary materials, stir them evenly, put them into the mold, extrude them, heat and dry them, pack them and stack them, and leave the factory after passing the inspection. Its main raw materials are stone powder (about 75%), cassava flour (about 10%), wood fiber (about 10%), stearic acid (about 5%), and hot water (90-100℃). At present, there are the following problems in the molded lumps of fireworks and firecrackers: 1. The cassava flour used in the molded lumps of fireworks and firecrackers is more than 10%, resulting in excessively high production costs. 2. At present, about 8% of wood fiber needs to be added in the production process, resulting in excessively high product costs. 3. A large amount of electric energy is required to heat and dry the finished product during the production process. This leads to an increase in electric energy costs. Hot water (90-100℃) is needed to melt the cassava flour during the production process to play a gelling role. Hot water at around 100°C poses a risk to the safety of production personnel.
[0004] Therefore, a more environmentally friendly and more excellent performance firecracker molded lump is needed to solve the above problems. Summary of the invention
[0005] In order to solve the above technical problems existing in the prior art, the present application provides a fireworks and firecrackers building gypsum molded lump and a preparation method thereof, which is specifically achieved through the following technical scheme:
[0006] A fireworks and firecrackers building gypsum molded lump is composed of the following raw materials: building gypsum, wood fiber and water.
[0007] Furthermore, the weight proportions of the raw materials are as follows: 900-1000 parts of building plaster, 20-40 parts of wood fiber, and 600-700 parts of water, preferably: 970 parts of building plaster, 30 parts of wood fiber, and 650 parts of water.
[0008] Furthermore, the building gypsum is obtained by calcining phosphogypsum at 150-200°C.
[0009] The method for preparing the fireworks and firecrackers building gypsum molded lump comprises the following steps:
[0010] (1) Material preparation: weigh 900-1000 parts of building gypsum, 20-40 parts of wood fiber, and 600-700 parts of water according to the weight ratio;
[0011] (2) Mixing: Mix the building gypsum and wood fiber evenly, add water and stir evenly;
[0012] (3) Pour into the equipment and wait for about 8 minutes for it to be formed. Take out the formed molded lump and dry it naturally.
[0013] Compared with the prior art, the technical effects created by this application are embodied in:
[0014] 1. Compared with conventional fireworks and firecrackers molded balls, the fireworks and firecrackers building gypsum molded balls of the present application do not need to add cassava flour, which reduces the cost by about 300 yuan / ton;
[0015] 2. This application uses building gypsum instead of stone powder, which improves the fire resistance of molded blocks, avoids the impact of stone powder mining on the environment, reduces the density of molded blocks, and reduces the use of wood fiber. Compared with stone powder, building gypsum is lighter (the bulk density of building gypsum is 800-900 kg / L 3 , the bulk density of stone powder is 1400-1500㎏ / L 3 ) Under the same volume, the amount of wood fiber added can be reduced by about 40%, and the fireworks and firecrackers building gypsum molded balls of this application reduce the cost by about 40 yuan / ton.
[0016] 3. The fireworks and firecrackers building gypsum molded lump of the present application does not need to heat the water temperature during production, and directly uses water at room temperature, stirs and pours into the mold for molding. The molded product is only naturally air-dried without high-temperature drying, which reduces production energy consumption and further reduces production costs.
[0017] 4. The fireworks and firecrackers building gypsum molded lumps of the present application have a short production cycle (it only takes about 8 minutes from adding water and stirring to molding), do not require heating and drying, and can be left to dry naturally for about 28 days, greatly reducing energy consumption.
[0018] 5. While the key performance indicators of the products produced using the formula and production process of this application are improved, the cost is significantly reduced. The raw material used for the building gypsum of this application is industrial solid waste phosphogypsum, which can also dispose of solid waste and assist in the implementation of the country's "dual carbon" strategy. The implementation of this patent can achieve significant economic, social and ecological benefits at the same time.
[0019] 6. This application uses building gypsum prepared from phosphogypsum as the main raw material instead of stone powder to produce environmentally friendly, degradable, and high-temperature resistant combined fireworks and firecrackers molded pieces, thereby avoiding the impact of stone powder mining on the environment, providing an environmentally friendly, economical, and safe fireworks base solution for fireworks and firecracker manufacturers, and promoting the green and high-quality development of fireworks companies. At the same time, it can also provide technical support for the resource utilization of phosphogypsum, improve the level of phosphogypsum consumption, and continuously expand the application scenarios of phosphogypsum. DETAILED DESCRIPTION
[0020] The technical solution of the present application is further limited below in conjunction with specific implementation methods, but the scope of protection required is not limited to the description.
[0021] Example 1
[0022] A method for preparing fireworks and firecrackers building gypsum molded lumps comprises the following steps:
[0023] (1) Material preparation: weigh 970 kg of building gypsum, 30 kg of wood fiber, and 700 kg of water;
[0024] (2) Mixing: Mix the building gypsum and wood fiber evenly, add water and stir evenly;
[0025] (3) Pour into the equipment, wait for natural shaping, take out the molded lump, and dry it naturally.
[0026] Example 2
[0027] A method for preparing fireworks and firecrackers building gypsum molded lumps comprises the following steps:
[0028] (1) Material preparation: weigh 960 kg of building gypsum, 40 kg of wood fiber, and 670 kg of water;
[0029] (2) Mixing: Mix the building gypsum and wood fiber evenly, add water and stir evenly;
[0030] (3) Pour into the equipment, wait for natural shaping, take out the molded lump, and dry it naturally.
[0031] Example 3
[0032] A method for preparing fireworks and firecrackers building gypsum molded lumps comprises the following steps:
[0033] (1) Material preparation: weigh 950 kg of building gypsum, 50 kg of wood fiber, and 650 kg of water;
[0034] (2) Mixing: Mix the building gypsum and wood fiber evenly, add water and stir evenly;
[0035] (3) Pour into the equipment, wait for natural shaping, take out the molded lump, and dry it naturally.
[0036] Comparative Example 1
[0037] The raw materials include stone powder (795kg), cassava flour (100kg), wood fiber (100kg), stearic acid (5kg) and hot water (90-100℃) (70-80%). The raw materials are mixed and stirred evenly, extruded, and heated and dried.
[0038] The performance test results of each embodiment and comparative example are as follows:
[0039]
[0040] Finally, it should be pointed out that the above embodiments are only representative examples of the present application. Obviously, the technical solution of the present application is not limited to the above embodiments, and there may be many variations. All variations that can be directly derived or associated with the contents disclosed in the present application by a person of ordinary skill in the art should be considered as the protection scope of the present application.
Claims
1. A fireworks and firecrackers building gypsum molded lump, characterized in that: It is composed of the following raw materials: building gypsum, wood fiber, water.
2. The fireworks and firecrackers building gypsum molded lump according to claim 1, characterized in that: The weight proportions of the raw materials are as follows: 900-1000 parts of building gypsum, 30-50 parts of wood fiber, and 600-700 parts of water.
3. The fireworks and firecrackers building gypsum molded lump according to claim 1, characterized in that: The weight proportions of the raw materials are as follows: 970 parts of building gypsum, 30 parts of wood fiber, and 650 parts of water.
4. The fireworks and firecrackers building gypsum molded lump according to claim 1, characterized in that: The building gypsum is obtained by calcining phosphogypsum at 150-200°C as a raw material.
5. The method for preparing fireworks and firecrackers architectural gypsum molded pieces according to claim 1, characterized in that: The steps include: (1) Material preparation: weigh 900-1000 parts of building gypsum, 20-40 parts of wood fiber, and 600-700 parts of water according to the weight ratio; (2) Mixing: Mix the building gypsum and wood fiber evenly, add water and stir evenly; (3) Pour into the equipment, wait for natural shaping, take out the molded lump, and dry it naturally.