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process control system for coal gangue industry

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Design of coal gangue online identification and separation

Oct 06, 2020 On line identification and automatic separation system of coal gangue. The principle block diagram of coal block and gangue online identification and automatic separation system is shown in Fig. 1. According to the requirements of coal preparation process, the system is mainly composed of the following three parts:

Implementation of Paste Backfill Mining Technology in

Aug 31, 2014 The paste backfilling system for the Daizhuang Coal Mine comprises five sections; all of them are with automatic centralized control systems in place. The system composition and major technical functions are as follows. (1) Gangue breaking and processing system: loading machines are used to put the gangues into the feeding hopper of original ...

Synergistic analysis of co combustion of sunflower straw

The coal gangue from Xilinguole, Inner Mongolia, China and sunflower straw in Jining, Inner Mongolia, China were studied. Although the mixing of biomass and coal gangue is a physical mixing process, the mixed combustion characteristics of biomass and coal gangue are not a simple superposition of the two combustion characteristics.

Coal Gangue and its Application Research in Building

The current statistics show coal gangue discharge is 100 million tons per year, and the accumulated discharge has been as high as 4.5 billion tons. It comprises the largest portion of solid waste in our country. Its storage not only requires valuable land resources, but also pollutes the air, water and soil of the storage sites, resulting in waste of resources.

Reclaiming Subsidized Land An Evaluation of Coal Gangue

Jan 20, 2020 Rehabilitation of areas impacted by subsidence following coal mining is a pressing need in eastern China, especially where availability of suitable soil material is limited. A field experiment was established to evaluate performance of varying layered combinations of soil and coal gangue materials as measured by maize ( i Zea mays /i L.) growth and yield. Two control treatments and eight ...

China Coal Gangue Rotary Kiln Manufacturers Suppliers

Coal gangue rotary kiln is a special equipment for calcining coal gangue. The coal gangue calcined by the rotary kiln has its high purity and high calcination whiteness. It is widely used in paper making and coating, especially coated paper and coating The added value of the product is relatively high.

Environmental cost control of coal industry based on cloud

Jun 03, 2021 The meaning of environmental cost control in the coal industry. ... If the proportion of data in the coal system is very large, the calculation process of the support vector machine described above requires a lot of calculations. ... that is, coal gangue produced in the production process. Company J adopts the method of direct sales of coal ...

Metallurgical Sampling in Slurry Minerals Mining and

In-stream analysis (ISA) systems provide continuous on-line analysis of metals and density in slurry streams around the flotation process. This information allows plant operators or a process control system to fine-tune and optimize the process much quicker after normal disturbances caused by variations in feed-rates, pulp density, grinding, head-grade, and mineralogy.

Energies Free Full Text Automatic Coal and Gangue

Sorting gangue from raw coal is an essential concern in coal mining engineering. Prior to separation, the location and shape of the gangue should be extracted from the raw coal image. Several approaches regarding automatic detection of gangue have been proposed to date; however, none of them is satisfying. Therefore, this paper aims to conduct gangue segmentation using a U-shape fully ...

Processes Free Full Text Experimental Study and

From the perspective of resource recovery and environmental protection, coal gangue-fly ash cemented backfill coal mining has become an important direction for the green development of coal mines in recent years. Analysis of the rheological parameters of backfill slurry is the basic principle to design a backfill pipeline system. Coal gangue-fly ash backfill slurry has a mass concentration of ...

Coal and Gangue Underground Pneumatic Separation Effect

The pneumatic separation test system mainly consists of conveyor belt, queuing system, machine vision system, control system, and high-pressure air injection system. When coal and gangue materials fell down from the conveyor belt, gangue will be identified by machine vision system, and the information is transported to control system through ...

Reutilisation of coal gangue and fly ash as underground

May 01, 2020 The coal gangue and fly ash used in the experiments were collected from a gangue dump and a power plant in the Coal Mine, respectively. In practical applications, due to the limitations of the backfill process and equipment, only gangue with a particle size of 50 mm or less is generally used for backfill (Li et al., 2017, Li et al., 2017). ...

Precision weighing control of coal mine paste backfilling

1. Introduction. The technology of coal mine paste backfilling (CMPB) technology is a new green technology to deliver paste filling-materials through pipeline to underground with help of the industrial filling pump or dead weight [1, 2, 3, 4].Paste filling materials are a mixture of fly ash, poor soil, coal gangue, slag, sand and other solid wastes around the coal mine with a certain ...

What is the professional manufacturer of coal gangue

Apr 28, 2021 Vertical roller mill equipment is dedicated to coal mine, solid waste, non-metallic minerals, metallurgical building materials and many other grinding market dedicated dry mill. It has the characteristics of crushing, grinding, grading and collect...

Frontiers Green Mining Efficiency and Improvement

Meanwhile, the output indicators of the mining subsystem include total coal production, coal output value, and pollutants or associated resources during the mining process. The coal gangue is identified as representing solid waste (Ma et al., 2015). The liquid waste generated during the mining process is mainly mining water and industrial sewage..mining of coal gangue process in india

Is coal gangue fully utilized in a power plant Quora

Coal gangue is solid waste in the Coal production and processing. To reduce the pollution degree of coal gangue,Guikuang is committed to develop the equipment for processing coal gangue. In power plant, Coal gangue crushing has become one of the i...

Sustainability Free Full Text Experimental Study on

The crushed gangue materials which are filled into the goaf in solid-backfilling coal mining become the main body of bearing the overburden after the tamping process. Its resistance to deformation is the key to control overburden movement and surface subsidence. Particle breakage affects the resistance to deformation of filling materials. In this paper, a confined compression test of crushed ...

1. Introduction Hindawi

The load control system uses a microcomputer-controlled electrohydraulic servo universal testing machine. The maximum pressure is 1000 kN. The experimental process can be accurately controlled, and the required data can be recorded using a computer program.

Coal Gangue Comprehensive Utilization Grinding Mill

May 07, 2021 Low investment, less system equipment, small land occupation and low cost. The finished product is of good quality, good particle type and full grain. Introduction of process flow of coal gangue vertical roller mill. The process of coal gangue grinding mill generally includes crushing, grinding, grading and gathering. The raw ore is crushed by ...

Assessment of Environmental and Occupational Safety in

Jun 14, 2020 Ensuring the ever-increasing demands of society for energy resources is a key problem for the development of the economy of all countries of the world. At this stage, to improve the living and working conditions of a person, the development of industry and transport, the growth of production based on scientific and technological progress, a continuous increase in energy use is required.

Extraction of Coal and Gangue Geometric Features with

coal–gangue separation system with computer vision, in which industry cameras and computers are used to identify whether the object is coal or gangue through the pattern recognition technology. Ma et al. proposed the coal gangue on-line recognition and automation selection system with digital image processing technology [4].

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