Views: 165 Author: Site Editor Publish Time: 2025-05-12 Origin: Site
With the continuous improvement of the country's requirements for green development and comprehensive utilization of resources, exploring effective, environmentally friendly and economical coal gangue treatment technologies has become an urgent task. Suspension calcination for decarbonization, as a new treatment method, not only can effectively reduce the carbon content in coal gangue, reduce environmental pollution, but also enhance its resource utilization value, and at the same time save costs for enterprises and create economic benefits. It is an important path to achieve a win-win situation of ecological benefits, economic benefits and social benefits.
I. Effective environmental protection, purifying the ecological environment
The suspended calcination decarbonization treatment method can significantly reduce the carbon content in coal gangue. If the carbon element remains in the coal gangue, it will slowly oxidize in the natural environment, not only releasing greenhouse gas carbon dioxide, but also possibly generating harmful gases such as carbon monoxide due to incomplete oxidation. Through suspended calcination, most of the carbon element is concentrated and collected for treatment in the form of carbon dioxide, effectively reducing the emission of harmful gases into the atmosphere.
Meanwhile, the coal gangue after carbon removal has more stable chemical properties, reducing its risk of spontaneous combustion. This prevents air pollution and surrounding ecological damage caused by spontaneous combustion at the source. During the suspension calcination process, the coal gangue particles are in a suspended state, in close contact with the air, resulting in more complete combustion, reducing the residue of unburned substances and lowering the potential pollution to the soil and water bodies. This significantly improves the ecological quality of the surrounding environment.
II. Deeply explore and enhance the utilization value of resources
Coal gangue is not an useless waste. It contains various valuable minerals and trace elements. After suspension calcination for decarbonization, the structure of coal gangue changes, making it more conducive to the subsequent extraction and utilization of these minerals and trace elements. For example, calcined coal gangue can be used to prepare building materials, such as for the production of cement and bricks.
The internal components such as silicate and aluminosilicate in it become more active after calcination, significantly enhancing the strength and durability of building materials. This has achieved a magnificent transformation of coal gangue from waste to high-quality building raw material. Moreover, the carbon-depleted coal gangue can also be used as a chemical raw material for the production of ceramics, refractory materials, etc., broadening the utilization pathways of resources and improving the comprehensive utilization rate of resources. It turns waste into treasure, allowing coal gangue to achieve greater economic value.
III. Controllable costs, enhancing the economic benefits of the enterprise
From the perspective of enterprise operating costs, the suspended calcination decarbonization treatment method has significant advantages. On one hand, it reduces the land lease costs and maintenance management expenses required for the long-term storage of coal gangue. In the past, a large amount of coal gangue was piled up, occupying a large area of land. Now, through effective suspended calcination treatment, enterprises no longer need to invest a large amount of funds in searching for and maintaining the storage sites.
On the other hand, the treated coal gangue is transformed into valuable products or raw materials, creating new profit points for the enterprise. The enterprise can put the produced building materials, chemical raw materials, etc. on the market for sale, increasing its income sources. At the same time, the heat generated during the suspension calcination process can be recycled and utilized for internal production heating or power generation within the enterprise, reducing the enterprise's reliance on external energy sources and further saving energy costs, enhancing the enterprise's economic benefits and market competitiveness.
