لمحة عن الشركة

شركة SKD لماكية المحدودة إحدي مؤسساة الصناعية الرايدة التي تخصّصها تصنيع و بيع كسارة الشكل الكبير وآلات الطاحونةالصناعة.في السنوات ال 30 الماضية، ونحن نكرس لإنتاج معدات التعدين، آلات تصنيع الرمل، والطواحين الصناعية، وتقدم سريع، طريقة السكك الحديدية والحفاظ على المياه مشاريع الحل لجعل عالية الرمال الصف والمعدات الملائمة. الاعتماد على هذه المنتجات الممتازة، يمكننا تلبية كل ما تبذلونه من المطالب، بما في ذلك المنتجات حسب الطلب والمتخصصة، والمنتجات التي يمكن تركيبها ووضعها موضع الاستخدام بسرعة.

حتى الآن، وتباع منتجاتنا الى 130 دولة، ويجري المعدات شعبية في سحق وطحن العالمي الصناعة. مع تطور SKD لدينا، نود أن مساعدة المزيد والمزيد من الزبائن تبدأ أعمالها في صناعات التعدين والبناء، وتوفر لهم أفضل الحلول، والآلات أكثر تقدما بكثير وخدمة أفضل.

سحق وغربلة النبات

The best way to calcinate coal gangue

Study on Calcination Catalysis and the Desilication

Coal gangue is a solid waste discharged during coal mining, which not only occupies large land resources but also brings about certain risks to the environment. The alumina and Review of Coal Gangue Characteristics and Ecological ,Coal gangue has become one of the industrial wastes with the largest annual discharge and accumulated stock in China. The disorderly accumulation of coal gangue not only

Improving strength of calcinated coal gangue geopolymer

In this study, the calcinated coal gangue was mixed with granulated blast furnace slag (GBFS) and slaked lime in making geopolymer based on increasing calcium content to Study on Al2O3 extraction from activated coal gangue ,Coal gangue was calcinated under air, nitrogen, carbon dioxide, air–hydrogen, and hydrogen atmospheres. The effects of different calcination temperatures and atmospheres on the

Field study on the improvement of coal gangue filling

The coal gangue filling bearing capacity reached at least 350 kPa after being improved by dynamic compaction with a tamping energy greater than 3000kN.m. Therefore, the Trace Elements in Coal Gangue: A Review IntechOpen,Coal gangue is one of the largest industrial residues. It has high ash content, low carbonaceous content, and heating value. Meanwhile, it has some trace elements. Large

Improved holding and releasing capacities of coal gangue

Activation is an effective method to improve adsorption capacity of coal gangue, however, most activated gangues reported have limited adsorption capacity for phosphate (PDF) Trace Elements in Coal Gangue: A Review,Due to much higher mineral contents, the mobility of trace elements in coal waste is expected to differ significantly from that in coal (Li et al. 2011;Zhou et al. 2014;Pierwoła

(PDF) Application of Coal Gangue as a Coarse Aggregate

Using coal gangue as coarse aggregate partly or completely replacing natural aggregate to produce coal gangue concrete (CGC) will effectively reduce the mining amount of natural Study on Calcination Catalysis and the Desilication ,Coal gangue is a solid waste discharged during coal mining, which not only occupies large land resources but also brings about certain risks to the environment. The alumina and silica minerals in coal gangue are the major resources and difficult to separate from each other, which hinders the resource utilization of coal gangue. The catalytic

The thermal activation process of coal gangue selected

The optimum activation temperature range of coal gangue was from 600 to 700 °C. The dissolution contents of SiO 2 and Al 2 O 3 were 92.31 and 64.44 %, respectively, when the calcination temperature at 700 °C. Coal gangue is a solid waste of coal produced in excavation and washing processes. Currently, coal gangue has been Coal/Gangue Recognition Using Convolutional Neural ,The CGRCNN model has been developed, augmentation principle has been applied in order to increase the dataset and the best experimental results have been achieved (99.36%) learning accuracy and (95.09%) validation accuracy, in the prediction phase (160) new images of coal and gangue (80 for both) have been tested to measure

Extraction of alumina from alumina rich coal gangue by a

The coal gangue generated from this area is thereby rich in alumina (Al 2 O 3, 40–50 wt%), which is almost the same as some middle and lowgrade bauxite . Alumina mainly extracted from bauxite is widely used in catalysts, adsorbents, ceramics, refractory, metallurgy and many other areas . As the largest producer and consumer of aluminium inCoal gangue detection and recognition algorithm based ,4.1 Design and implementation of coal gangue detection and recognition device. This study proposes an method for coal gangue detection and recognition on the basis of the DCNYOLOv3 algorithm. Firstly, the method collects realtime video images of a conveyor belt operation through an industrial camera erected perpendicular to the

Influence of coal gangue mulching with various

Water availability seriously affects vegetation restoration in arid mining areas, and mulching is an effective way to improve soil water conditions. Coal gangue occupies large swathes of landMicrostructure of Coal Gangue and Precipitation of Heavy ,Table 2 shows that in the material composition of coal gangue, SiO 2 is the main component with high content, accounting for 59.9% and 53.7% of the fresh and weathered coal gangue, respectively. The secondary element is Al 2 O 3, accounting for 20.7% and 17.6% of fresh and weathered coal gangue, respectively.The contents of SiO 2, Al 2 O 3, and S in the

Improved holding and releasing capacities of coal gangue

Activation is an effective method to improve adsorption capacity of coal gangue, however, most activated gangues reported have limited adsorption capacity for phosphate because of the electronegativity, affecting their use in agricultural production and environmental protection. The best adsorption performance of ASFCG were associated withExtraction of alumina from alumina rich coal gangue by a ,Vast quantities of gangue from coal mining and processing have accumulated over the years and caused significant economic and environmental problems in China. For high addedvalue utilization of alumina rich coal gangue (ARCG), a mild hydrochemical process was investigated to extract alumina. The i

Using Chinese Coal Gangue as an Ecological Aggregate

Affiliations. 1 School of Civil Engineering and Communication, North China University of Water Resources and Electric Power, Zhengzhou 450045, China. 2 State Key Laboratory of EcoHydraulics in Northwest Arid Region, Xi'an University of Technology, Xi'an 710048, China. PMID: 35806620. PMCID: PMC9267344. DOI: 10.3390/ma15134495.Coal gangue recognition based on spectral imaging ,The identification of coal gangue is of great significance for its intelligent separation. To overcome the interference of visible light, we propose coal gangue recognition based on multispectral imaging and Extreme Gradient Boosting (XGBoost). The data acquisition system is built in the laboratory, and 280 groups of spectral data of coal

Coal gangue detection and recognition algorithm based

Coal gangue detection and recognition algorithm based on deformable convolution YOLOv3 Deyong Li1,3,4 Guofa Wang3,4 Yong Zhang1,2 Shuang Wang1,2 1 State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology,Coal/Gangue Recognition Using Convolutional Neural ,The CGRCNN model has been developed, augmentation principle has been applied in order to increase the dataset and the best experimental results have been achieved (99.36%) learning accuracy and (95.09%) validation accuracy, in the prediction phase (160) new images of coal and gangue (80 for both) have been tested to measure

Frontiers Factors Affecting Brittleness Behavior of Coal

CoalGangue Ceramsite Lightweight Aggregate Concrete Specimen Preparation Process. Since the experiments were performed on CGCLWAC of which the mixing and forming processes were so different from that of common aggregate concrete, the only references were the “Lightweight aggregate concrete technical regulations” Radiation characteristics of natural gammaray from coal ,Recognition of coal and gangue (roof rock) is a key technology to realize fully mechanized top coal caving automated mining. This paper proposes to detect the instantaneous refuse content of drawn

Materials Free FullText Application of Coal

Among the techniques for converting stacked coal gangue to reusable material, one of the most effective ways is to use coal gangue as a coarse aggregate in green concrete productions. The Influence of coal gangue mulching with various ,Water availability seriously affects vegetation restoration in arid mining areas, and mulching is an effective way to improve soil water conditions. Coal gangue occupies large swathes of land

Microstructure of Coal Gangue and Precipitation of Heavy

Table 2 shows that in the material composition of coal gangue, SiO 2 is the main component with high content, accounting for 59.9% and 53.7% of the fresh and weathered coal gangue, respectively. The secondary element is Al 2 O 3, accounting for 20.7% and 17.6% of fresh and weathered coal gangue, respectively.The contents of SiO 2, Al 2 O 3, and S in the Recognition Methods for Coal and Coal Gangue Based on ,Recognizing coal and coal gangue is an important part of the coal industry and is mainly conducted via human sorting at present. Consequently, considerable manpower is needed, which adds a burden to enterprises and results in low efficiency. As an important branch of artificial intelligence, deep learning has been widely applied in many

Influence of Coal Gangue Volume Mixing Ratio on the

In order to clearly grasp the influence rules of the coal gangue volume mixture ratio on the system contact response, and finally realize the coal gangue mixing ratio recognition according to the contact response differences, on the basis of the Hertz contact theory and Flores nonlinear springdamping contact theory, this paper proposed and ,