Traditional production method of lime brick
As one type of traditional building material, the production method of lime brick has always been simple, it mainly relies on a large amount of natural resources, especially clay. This production method not only consumes a lot of land resources, but also produces a lot of carbon dioxide during calcining, leading to air pollution. When application fly ash being introduced into production of lime brick, the situation changes a lot.
Innovative application of fly ash in lime brick production
Fly ash, as the main solid waste of coal-fired power plants, is particularly important in innovative application of lime brick production. By mixing fly ash with lime and other material according to a certain proportion, then through stirring, molding and heating, strong and durable lime brick is finished. This new type of brick not only reduces dependence on natural resources, but also effectively utilizes industrial waste and reduces environmental pollution.
Technological innovation involved during production of fly ash lime brick
1. Technology of autoclaving fly ash brick
With the development of technology, autoclaved fly ash brick is favored for its high strength and stability. Technology of autoclaving improves the performance of lime brick.
2. Automated production equipment
In order to improve production efficiency and reduce costs, new brick making machine has been developed. It can automatically produce high-quality fly ash brick.
3. Resource technology
A variety of technologies, such as: sulfuric acid leaching, limestone sintering and soda lime sintering, are used to extract alumina from fly ash, and then the fly ash is used to produce fly ash brick.
4. Geo-polymer technology
Geo-polymer is three-dimensional network polymer with silicon-oxygen tetrahedron and aluminum-oxygen tetrahedron as basic units. It has properties of good corrosion resistance, durability, impermeability, flame retardancy and low shrinkage. The energy consumption of fly ash lime brick is only 30% of that of cement, and it is widely used in the field of building materials.
5. Zeolite molecular sieve technolog
The aluminosilicate in fly ash or the residue after aluminum extraction from fly ash can replace traditional chemical raw material to synthesize molecular sieves with different silicon to aluminum ratio. It can significantly reduce production cost of molecular sieves and promote industrial promotion and application of molecular sieves.
6. Foam glass technology
Elements of fly ash, such as: SiO2, Al2O3, unburned carbon, mullite and quartz, can form glass formation after high-temperature calcinating. The glass formation. By adding foaming agent and with secondary calcination, the glass formation can form foam glass. These technological innovations not only improve production efficiency and product quality of fly ash lime brick, but also promote the recycling of resources and environmental protection.
Environmental and economic benefits of fly ash lime brick
Environmental benefits
Resource recycling: the production of fly ash lime brick utilizes a large amount of industrial by-products, this reduces exploitation and consumption of natural resources.
Less environmental pollution: as industrial waste, fly ash will cause serious environmental pollution if not properly handled. The production of fly ash lime brick effectively reduces waste residue and pollution of fly ash.
Energy saving and emission reduction
Compared with traditional clay brick, fly ash lime brick causes lower energy consumption in production, this reduces emission of harmful gas and has a positive effect on environmental protection.
Economic benefits
Cost reduction: the production cost of fly ash lime brick is relatively low, since fly ash, as its main material, is free industrial waste, this greatly reduces the cost of raw material.
Market potential: with the improvement of environmental awareness and policy support, the market demand for fly ash lime brick is gradually increasing, and it would have boarder market prospect in future.
Conclusion
As a new type of environmentally friendly building material, fly ash lime brick has a broad market prospect. It can not only meet the demand for environmental protection and economy benefit of construction industry, but also promote the recycling of resources and environmental protection. It would become more and more important in the field of building material in future.
In actual application of fly ash, it is necessary to select suitable grinding and classifying equipment to obtain particles with required fineness. Ball mill and air classifier can be well used for grinding and classifying fly ash.
Qingdao Epic Powder Machinery Co., Ltd. is a manufacturer specializing in the production of powder processing equipment.
Its products include:
– Mill: kilang bola, kilang penggelek, jet mill, air classifier mill, vibration mill and impact mill etc.
– Classifier: four series of air classifiers: HTS, ITC, MBS and CTC.
– Modifier: pin-mill modifier, turbo-mill modifier dan three-roller modifier etc.
– Auxiliary equipment: control cabinet, dust collector and bucket elevator etc.
– Customers can also customize according to their needs, one customer one design.
If you are interested in ball mill or air classifier or other equipment from Epik Qingdao, please contact staff directly, they are always at your service.
Below are photos from Qingdao Epic for your reference.
