Cementitious bricks have a disadvantage of low production efficiency for their essential curing process ... Based on the source and distribution of coal gangue (CG) in China, this study introduces the current situation of CG storage in China and the problems existing in the process of CG utilization. ... The performance meets the …
Abstract. Among coal mining-related wastes, coal gangue (CG) is the heterogeneous waste generated during the mineral processing or coal washing phase …
This study proposed to produce high-strength thermal insulation bricks using coal gangue as the primary material and three other mineral powders as auxiliary …
[1] Pengtao Wang 2019 Study on the current situation and existing problems of coal gangue comprehensive utilization [J] Science and technology innovation 16 182-183 Google Scholar [2] Honggang Sun 2014 Analysis of the impact of coal gangue raw materials on the quality of sintered brick [J] Coal 10 79-80 Google Scholar [3] Shukun …
Semantic Scholar extracted view of "Preparation and Properties of Sintered Brick Based on Coal Gangue and Fly Ash" by Xinlan Liu et al. ... Polyaluminum chloride slag produced in the production of water treatment agents pollutes the environment and wastes land resources in the process of landfill and waste.
The presence of silica and alumina along with the traces of clay minerals and residual coal fractions has led to the utilization of coal gangue in various applications such as power generation, fertilizer production, brick production, cement and concrete production, as a backfill material and a landfill liner material [15,16,17,18,19,20 ...
Coal gangue powder is the raw material for making solid gangue bricks, porous load-bearing gangue bricks, hollow gangue bricks and other brick-laying materials. 2. Coal gangue powder replaces clay to produce cement The price of cement has skyrocketed. Coal gangue powder replaces clay to produce cement for the …
The use of coal gangue to prepare building materials, mainly including bricks, cement raw materials, ceramic materials, etc. 1. Brick making. Coal gangue bricks usually use the calorific value of coal gangue to provide the required drying and baking energy. The calorific value of coal gangue in my country is 3300~6300 kJ/kg[5].
1. Introduction. Coal gangue is an industrial waste from coal mining [].In China, coal gangue is one of the largest industrial solid waste types in terms of annual emissions and accumulation [].At present, the annual output of coal gangue in China is about 300~350 million tonnes, and the accumulated coal gangue is about 6~7 billion tonnes [2,3].The …
This study proposed to produce high-strength thermal insulation bricks using coal gangue as the primary material and three other mineral powders as auxiliary …
For example, coal gangue containing high calorific value can be used for power generation; low calorific value coal gangue can be used to make brick and cement; coal gangue with spontaneous combustion phenomenon can be as a fill material of …
Coal mining and washing is accompanied by the production of large amounts of coal gangue, which exerts a notable influence on the natural environment. However, …
Coal gangue grinding powder can be used in coal gangue making bricks, cement making, light aggregate production, coal gangue blocks and so on. (4) Brick making with coal gangue powder ... Detailed Requirements: Send Now. Recommended products. HGM superfine powder mill. Fineness: 150-2500mesh. Yield: 0.2-45t/h ...
So, coal gangue brick is a high-quality green building material (Tianqi 2019). At present, the production technology of coal gangue sintered brick and hollow brick is becoming more and more mature, continuous development of new technology and new equipment, development of multi-purpose, a variety of coal gangue brick is gradually …
Coal gangue, an industrial solid waste discarded from coal mining and processing, was used as the sole raw material to prepare brick. The coal gangue was crushed, homogenized, milled and then ...
1.2. Source and distribution of CG in China. CG is a kind of black gray shale rock produced in the process of coal production. China is the world's largest coal producer (Munir et al., 2020) and also the largest coal consumer.Coal provides about 62% of China's energy demand (Mita et al., 2015).In the process of sorting and processing, the production of …
1. Introduction. Coal gangue is one of the largest industrial residues in China that is discharged during the processing and utilization of coal (Gu, 1997, Liu and Liu, 2010).With continuous growth of coal mining and coal cleaning, a large amount of coal gangue are produced, which contain sulfide minerals, alumino-silicates minerals, other …
Production technology of coal gangue fired brick [J]. New building materials, 2007,34 (7): 32-33 Experimental study on Preparation of non burning pavement brick with coal gangue
Coal gangue brick making. The gangue brick-making process is the same as the clay brick-making process, which mainly includes preparing, shaping, drying, and …
Coal gangue is one of the industrial solid wastes that may harm the human body through the ecosystem for a long time. Using coal gangue in geopolymer preparation can effectively reduce cement output and meet the sustainability requirements. In …
Key takeaway: 'Coal gangue can be effectively used to produce high-quality bricks, meeting Chinese Standard GB 5101-2003 with optimal properties achieved at 1200°C.' ... Utilization of coal gangue for the production of brick. Hongliang Xu, Wenjuan Song, Wenbo Cao + 5 more authors. Jul 1, 2017. Cite. Share. Citations. 1. Influential Citations ...
Coal gangue (CG) is an associated product in the process of coal mining and washing, accounting for approximately 10-15% of the raw coal production, and in some small and medium-sized coal mines ...
•. Brick-making using coal gangue is one of the important coal gangue recycling utilization. •. The enrichment behaviors and health impacts of natural …
Coal gangue is a kind of industrial solid waste with serious ecological and environmental implications. Producing concrete with coal gangue aggregate is one of the green sustainable development requirements. This paper reviews the properties and preparation methods of Chinese gangue aggregate, studies the influence of gangue …
Coal gangue power generation Coal gangue grinding adopts fluidized bed technology. When the carbon content is greater than 20%, it can be used as energy and can be used to generate electricity. Recycling of coal and pyrite Coal gangue adopts composite dry coal preparation, cyclone, and heavy medium separation. When the coal …
The calorific value of coal gangue refers to the amount of energy that can be released from complete combustion of coal gangue per unit mass under certain conditions, and it usually increases with increasing carbon mass fraction and volatile fraction and decreases with increasing ash fraction [24].The meltability of coal gangue refers to the …
Coal gangue, which is mainly generated during coal excavation, mining, and coal washing, is an industrial solid waste that is recognized as an environmental pollutant. The ever –
DOI: 10.1016/j.powtec.2020.08.088 Corpus ID: 225031397; Cascade network for detection of coal and gangue in the production context @article{Lv2021CascadeNF, title={Cascade network for detection of coal and gangue in the production context}, author={Ziqi Lv and Weidong Wang and Zhiqiang Xu and Kanghui Zhang and Haimei Lv}, journal={Powder …
Abstract Among coal mining-related wastes, coal gangue (CG) is the heterogeneous waste generated during the mineral processing or coal washing phase of coal mining. A thorough understanding of environmental concerns associated with the current model of ...
Coal gangue, a by-product produced during the coal processing, has a serious impact on the environment. Using coal gangue as a fertilizer has been proven helpful in potentially reducing its environmental impact and improving its value. In this study, the formation mechanism and influencing factors of coal-gangue-based silicon fertilizer was studied …