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

Structural design finalizing method based on material test and DEM-CFD (discrete element method and computational fluid dynamics) simulation coal transport system

A DEM-CFD and system structure technology, which is applied in the field of structural design and finalization of coal conveying and transfer systems based on material testing and DEM-CFD simulation, can solve the problems of dust overflow in the guide chute, chute wear, economic losses, etc., and improve the operation efficiency. , Improve the service life and reduce the effect of relative motion

Active Publication Date: 2018-07-06
XIAMEN LIQI ENVIRONMENTAL ENG
View PDF5 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The problems existing in the coal handling and transfer system are basically caused by structural design defects; in the traditional design, the equipment of the transfer system, such as "head funnel, chute and guide chute, etc. Selection Manual" for selection, the equipment selection of the dust collector is calculated and confirmed according to empirical formulas; the traditional transfer system design does not consider the characteristics of the conveying medium and the trajectory of material throwing, throwing out uncontrollable material flow at the unloading point of the belt conveyor and letting it go When the air passes through the material flow, it will disperse and entrain fine dust particles, forming a large amount of flying dust; the design of the chute is basically a corner design and vertical falling, which is easy to cause the material to move too fast in the chute. Large, the chute wears seriously and is easy to accumulate or even block materials; at the discharge point, the material has a strong impact on the receiving belt, which is likely to cause incorrect material discharge and eventually cause the belt to deviate; the dust spillover from the material guide chute is serious, and the dust concentration in the environment of the transfer system exceeds the standard , which seriously affects the physical and mental health of the operators; more than 80% of the downtime in the coal transportation system is caused by the maintenance of the transportation system, which seriously affects the operation efficiency of the transportation system and causes unnecessary economic losses

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
  • Structural design finalizing method based on material test and DEM-CFD (discrete element method and computational fluid dynamics) simulation coal transport system
  • Structural design finalizing method based on material test and DEM-CFD (discrete element method and computational fluid dynamics) simulation coal transport system
  • Structural design finalizing method based on material test and DEM-CFD (discrete element method and computational fluid dynamics) simulation coal transport system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0150] The specific working conditions are as follows:

[0151] Band width: B=1800mm, blanking point: 1, blanking height: 18m, belt speed: 3.5m / s,

[0152] Rated output: 3000t / h; Maximum output: 3600t / h

[0153] Coal: up to 250mm

[0154] Coal type: (1) Shenfu Dongsheng coal is used as the coal type, and Yitai No. 4 coal is used as the calibration coal type (2) Indonesian lignite

[0155] The shell of the chute is made of 8mm thick Q235B steel plate, the lining of the impact surface of the chute is made of high chromium bimetallic wear-resistant composite steel plate, the total thickness is not less than 24mm (12mm+12mm), the substrate is 12mm thick Q235B steel plate, and the thickness of surfacing welding is not less than 12mm; The hardness is HRC58-60, the carbon content (C) is not less than 4-5%, and the chromium (Cr) content is not less than 30%; the lining of the wear surface of the chute is not less than 25mm thick pure ceramics, AL 2 o 3 Content: more than 92%; Mohs...

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

A structural design finalizing method based on material test and DEM-CFD (discrete element method and computational fluid dynamics) simulation coal transport system is based on the material test; through DEM and coupled simulation of DEM and CFD, system performance analysis is performed on the structure of the coal transport system before processing and manufacture; verification on design scheme performances helps a designer find potential problems of the system so as to finally determine an optimal design scheme.

Description

technical field [0001] The invention belongs to the technical field of bulk material transportation, and in particular relates to a method for designing and finalizing the structure of a coal transportation and transportation system based on material testing and DEM-CFD simulation. Background technique [0002] The problems existing in the coal handling and transfer system are basically caused by structural design defects; in the traditional design, the equipment of the transfer system, such as "head funnel, chute and guide chute, etc. Selection Manual" for selection, the equipment selection of the dust collector is calculated and confirmed according to empirical formulas; the traditional transfer system design does not consider the characteristics of the conveying medium and the trajectory of material throwing, throwing out uncontrollable material flow at the unloading point of the belt conveyor and letting it go When the air passes through the material flow, it will disper...

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): G06F17/50
CPCG06F30/20
Inventor 王嘉智
Owner XIAMEN LIQI ENVIRONMENTAL ENG
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