Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Qualified medium barrel dilute medium water complementing system and method used for dense-medium coal preparation

A technology of heavy medium coal preparation and water replenishment system, applied in chemical instruments and methods, wet separation, solid separation, etc., can solve the problems of increasing coal ash content in products, adverse effects on production and product quality control, and difficulty in ensuring recovery rate, etc. Achieve the effect of reducing magnetic separation loss, ensuring liquid level and density, and reducing dielectric loss

Active Publication Date: 2015-01-21
CHINA SHENHUA ENERGY CO LTD +1
View PDF6 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the separation density of the dense medium suspension is the key to product quality control. If the separation density is too low, it is difficult to ensure the recovery rate, and if the separation density is too high, it will increase the ash content of the product coal. When it is high, water needs to be replenished to achieve a qualified sorting density
At present, most dense medium coal preparation processes use clean water to replenish water in the medium tank. However, if a large amount of clean water enters the medium tank, it may damage the stability of the dense medium suspension in the medium tank, which is unfavorable for production and product quality control. influences

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Qualified medium barrel dilute medium water complementing system and method used for dense-medium coal preparation
  • Qualified medium barrel dilute medium water complementing system and method used for dense-medium coal preparation
  • Qualified medium barrel dilute medium water complementing system and method used for dense-medium coal preparation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] figure 1 It shows a typical flow chart of dense medium coal preparation water replenishment process in the field. After the raw coal is sorted by dense medium, the product and dense medium suspension enter the medium separation sieve 6 through path A, and the medium separation sieve 6 separates the heavy medium After sorting, the medium carried by the product is removed, and the general separation and separation section and the thinning section are carried out in the figure 1 Among them, the left port of the de-mediation screen 6 corresponds to the combined media section, and the right port corresponds to the dilute media section.

[0024] When working, on the one hand, the qualified medium removed from the joint section enters the joint distribution box 5 through pipeline B. If the liquid level and density ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a qualified medium barrel dilute medium water complementing system used for dense-medium coal preparation. The system comprises a dilute medium flow guide device, a dilute medium barrel, a dilute medium pump, a detection module and a control module. The dilute medium flow guide device is connected with a qualified medium barrel and leads dilute media into the qualified medium barrel; the dilute medium barrel is connected with a medium drainage screen and holds the dilute media removed from the medium drainage screen; one end of the dilute medium pump is connected with the dilute medium barrel, and the other end of the dilute medium pump is connected with a dilute medium magnetic separator; the detection module is installed on the qualified medium barrel and is used for detecting the density and the liquid level of dense-medium suspension liquid in the qualified medium barrel and sending density and liquid level parameters to the control module; the control module is installed on the dilute medium flow guide device and is used for controlling the dilute medium flow guide device to start and / or stop introducing the dilute media into the qualified medium barrel according to the density and liquid level parameters of the dense-medium suspension liquid in the qualified medium barrel. The invention further discloses a qualified medium barrel dilute medium water complementing method. By means of the qualified medium barrel dilute medium water complementing system and method, stability of the liquid level and the density of the dense-medium suspension liquid in the qualified medium barrel is guaranteed in dense-medium coal preparation.

Description

technical field [0001] The invention relates to the technical field of coal preparation, in particular to a system and method for replenishing water in a combined-medium barrel and thin-medium medium for dense-medium coal preparation. Background technique [0002] Coal preparation refers to the process of sorting out products that meet the quality requirements from raw coal. Common coal preparation processes include jigging, heavy-medium separation, flotation, and dry separation. Its advantages in many aspects have attracted much attention, and it has been widely used in the field of coal washing and processing in recent years. Since dense medium coal preparation is suitable for the separation of various optional raw coals, especially in the separation of difficult and extremely difficult coals, more attention has been paid to it. Therefore, in recent years, dense medium coal preparation has surpassed jigging separation and has become the main sorting method. The so-called...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B03B5/30B03B13/00
Inventor 蒋涵元宋万军马涛张宁
Owner CHINA SHENHUA ENERGY CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com