gangue mechanical device

Multitechnique investigation of concrete with coal gangue

 · 1. Introduction. China is a main coal producer in the world, its annual consumption of coal accounts for 50% of the world's total coal consumption, .Coal gangue is the companion organism of coal, which is one of the largest solid wastes in China .The huge amount of coal gangue not only occupies land, but also pollutes the environment by producing toxic gases …


N91-71218

 · separation mechanical metal/gangue separation heat treatment I auto-s intering_ J magnetic sep. metal from gangue hot compacting Icompacting Table I Mechanical Properties of Lunar Alloys (annealed) [9] Property theoretical density tensile strength elongation hardness Not e : Pure Fe Fe-5.Ni-0.5 C > 95% > 95% 90 x 106 Pa 420 x l0s Pa (13,000 ...


Research on a Coal Gangue Identification Device

Zheng et al. [25] designed a coal-gangue-identification device based on a grayscale sensor to recognize coal and gangue, and the automatic separation was …


Evaluation of an Underground Separation Device of Coal …

A novel underground device for separation of coal and gangue was introduced. Mixed materials of coal and gangue from five coal mines were crushed and tested using five rotor speeds.


From gangue to the fuel-cells application | Scientific Reports

 · The mechanical treatment of Mg/MgH 2 leads to grain size ... (FC). The generated electric power was utilized to charge the battery of a cell …


Mechanical and Acoustic Emission Behavior of Gangue …

 · A hydraulic servo loading device (TAWZ-2000/50, Chaoyang Test Instrument Co., Ltd, Changchun City, China) was used in this test. The maximum axial compressive force can reach 2000 kN, and the maximum piston stroke is 150 mm. ... The mechanical properties of coal gangue are lower than gravel. This is due to the lithology, higher porosity, and ...


Research on Mechanical Properties of U-Shaped …

 · In practice, deformation control of the gangue rib is a key factor for the success of RAFRCPR mining technology. The impact dynamic load formed in the process of roof collapse in the goaf and the squeezing effect between the collapsed gangue often have an adverse impact on the maintenance of the gangue rib [16–18].Especially under the condition of deep high …


Faculty-

 · 2013-2015,Shaanxi Automotive Group Co., Ltd. Mechanical Engineering PostdoctoralWorkstation,Postdoctoral 2009-2012, Mechanical Engineering Postdoctoral Research Station, School of Automobile,Chang'an University,Postdoctor 2003-2009,Teaching


 · 1 :Experimental Research and Computer Simulation of Face Grind-hardening Technology,:Journal of Mechanical Engineering,:SCI(WOS:0003) 2 :Evaluation of an Underground Separation Device of Coal and Gangue,:International Journal of Coal Preparation and Utilization, …


COAL AND GANGUE IDENTIFICATION DEVICE AND COAL …

 · A coal and gangue identification device is disclosed. The device includes a rotary supporting frame, a water injection unit, a weighing unit, a liquid level detection device and a processing module. The rotary supporting frame is provided with a loading unit used to load a mineral aggregate. The rotary supporting frame is used to drive the loading unit to rotate on a …


influence of gangue particle size and gangue feeding rate …

When the gangue particle sizes were 20, 40, 60, 80 and 100 mm, the corresponding peak velocity was 33.0, 47.6, 58.7, 68.1 and 76.4 m s-1 (Zhang et al. 2012). To sum up, two feeding schemes are determined. Scheme I, at a gangue feeding rate of 500 t h-1, the diameter of gangue particles was increased in steps of 20 mm from 20 mm to 100 mm. The ...


Compression characteristics of local filling gangue in …

 · The gangue compaction device is a self-made steel cylinder, mainly composed of the piston, cylinder, foundation. To move the steel cylinder during the experiment, and there is a handle on the cylinder. ... Li, SG, et al. (2021) Mechanical properties and energy dissipation characteristics of coal–rock-like composite materials subjected to ...


Improved extraction of alumina from coal gangue by …

 · 2.2. Methods and processes2.2.1. Mechanical and thermal activation. Coal gangue samples were initially crushed using Jaw crusher (PE60X100), then ground using a planetary mill (QM-3SP2) and sieved to 60–100 mesh (0.25–0.15 mm) to obtain As-received samples.As-received samples then ground using a planetary mill (QM-3SP2) continually for 2 to 20 h at a …


-20211031011826.doc- ...

 · Mine hoist mechanical system is composed of spindle, roller, reducer, motor, brakes and other components. In its design, virtual design software PRO / E is applied to establish hoist prototype, application of simulation software ADAMS is used to simulate and optimize the design. Specific process shown in Figure 1: Figure 1.


The working principle of the gangue to roll crusher in …

 · Working Principle of Gangue to Roll Crusher. 1, The series of gangue to roll crusher mainly consists of roller, roller bearing, compression and regulating device and drive device and other components. 2, the adjustment of the material size: between the two rollers with wedge or gasket adjustment device, the top of the wedge-shaped device with ...


Research on a Coal Gangue Identification …

The paper designed a coal gangue identification device. It firstly proposed to use the guide groove to guide, grayscale sensor to recognize and the corresponding mechanical actuators to realize automatic separation of coal and waste rocks. …


1 Froth Flotation – Fundamental Principles

 · 1 1 Froth Flotation – Fundamental Principles Froth flotation is a highly versatile method for physically separating particles based on differences in the ability of air bubbles to selectively adhere to specific mineral surfaces in a


China Coal Gangue Industry Market Research and ...

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(PDF) Handbook of Mechanical Engineering - Academia.edu

Handbook of Mechanical Engineering. Cardo Dalisay. Download Download PDF. Full PDF Package Download Full PDF Package. This Paper. A short summary of this paper. 18 Full PDFs related to this paper. Read Paper. Download Download PDF.


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Research on a Coal Gangue Identification Device | Applied …

The paper designed a coal gangue identification device. It firstly proposed to use the guide groove to guide, grayscale sensor to recognize and the corresponding mechanical actuators to realize automatic separation of coal and waste rocks. Compared with other separation device, it firstly put forward solutions to realize the linear arrangement of materials, and solve the problem of …


US Patent Application for COAL AND GANGUE …

 · The present invention proposes a coal and gangue separation device, including a first supporting seat, a guide part and multiple material bins. The guide part is hinged with the first supporting seat; the guide part rotates in a vertical direction; and inlets of the plurality of material bins are sequentially distributed on a rotation track of a movable end of the guide part.


Entrainment of Gangue Minerals in Froth Flotation: …

 · Mechanical transportation is a consequence of one or more contributing recovery forms via composite particles, slime coatings, entrapment as well as entrainment . Composite particles of gangue and value minerals are not a serious problem with coarse-grained ores because a high degree of liberation can be achieved by grinding. However, composite ...


Mechanical properties and meso-structure response of …

 · CGFB is made up of coal gangue, FA, cement, additive and water according to a certain ratio. Coal gangue was taken from the gangue mountain of Daizhuang Coal Mine for secondary crushing, with the particle size between 1.0 and 16.0 mm. Among them, 1.0–5.0 mm accounts for 40%, 5.0–9.5 mm accounts for 40%, and 9.5–16.0 mm accounts for 20%.


(PDF) An Experimental Investigation on the Mechanical …

 · An Experimental Investigation on the Mechanical Properties of Gangue Concrete as a Roadside Support Body Material for Backfilling Gob-Side …


Nonlinear Creep Model of Deep Gangue Backfilling …

 · tages for describing the material's rheological mechanical properties than the integer-order calculus [29]. This paper uses a large-scale confined compression test device to study the creep characteristics of gangue and estab-lishes a high-precision fractional viscoelastic creep model of gangue. The fractional viscoelastic creep model is used as


Nondestructive Identification of Coal and Gangue via Near …

Coal-gangue separation is an essential step in the coal preparation process. However, existing manual selection and mechanical separation methods require a large amount of labor, consume too much water, and involve health hazards. In this article, we solve this problem based on the near-infrared spectroscopy (NIRS) technique in tandem with improved broad learning. First, to …


Investigation of the kinetic energy transformation pattern …

 · The buffer device includes a conical cover, a buffer base, and buffer springs, while the limiting stoppers include the upper and lower limiting nuts as well as guide rails. ... Zhang et al. studied the hydraulic-mechanical properties of gangue backfill materials. The aforementioned studies have focused on particle feeding technology, energy ...


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Coal 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 DCN-YOLOv3 algorithm. Firstly, the method collects real-time video images of a conveyor belt operation through an industrial camera erected perpendicular to the conveyor belt.