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

Needle-shaped and flaky crushed pebble screening device and method

A screening device, needle-shaped technology

Active Publication Date: 2020-10-20
CHINA RAILWAY NO 9 GRP ENG TESTING CO LTD
View PDF15 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing detection technology is to use needle and flake gauges to detect gravel and pebbles. Specifically, the test personnel visually remove the samples that are not needle flakes and then compare them one by one. Subjective misjudgment by testers, inaccurate test results, and long test cycles

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
  • Needle-shaped and flaky crushed pebble screening device and method
  • Needle-shaped and flaky crushed pebble screening device and method
  • Needle-shaped and flaky crushed pebble screening device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] A needle-shaped crushed pebble screening device provided in this embodiment includes a sheet-shaped screen 1, a needle-shaped screen 2, a screen wall 3, and a screen support 4. The screen wall 3 and the screen support 4 are fixedly connected. The shape screen 1 and the needle screen 2 can be replaced on the screen support 4, the inner diameter of the upper opening of the screen wall 3 is slightly larger than the diameter of the sheet screen 1 and the needle screen 2, and the bottom of the screen support 4 Consistent with the inner diameter of the upper opening of the screen wall 3, it is convenient to combine with the bottom tray 9 of the screen. The sheet screen 1 is provided with a screen through hole 5, and the needle screen 2 is provided with a needle through hole 6.

[0032] The number of sieve through holes 5 of sheet screen 1 is made according to the nominal particle size of stones in Table 7.9.3-2 (JGJ 52-2006). The sieve through holes 5 adopt an inverted trapezo...

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 needle-shaped and flaky crushed pebble screening device and method, belongs to the technical field of engineering material test detection, and particularly relates to the needle-shaped and flaky crushed pebble screening device and method. The needle-shaped and flaky crushed pebble screening device can avoid inaccurate detection caused by manual visual screening, are convenient to operate and improve screening efficiency. The needle-shaped and flaky crushed pebble screening device comprises a flaky screen mesh, a needle-shaped screen mesh, a screen wall and a screen mesh support, and is characterized in that the screen wall is fixedly connected with the screen mesh support, the flaky screen mesh and the needle-shaped screen mesh are replaceably arranged on the screen mesh support, the flaky screen mesh is provided with screen piece through holes, and the needle-shaped screen mesh is provided with screen needle through holes. The invention also provides the needle-shaped and flaky crushed pebble screening method which utilizes the screening device.

Description

technical field [0001] The invention belongs to the technical field of engineering material testing and detection, and in particular relates to a screening device and method for needle-shaped broken pebbles. Background technique [0002] Crushed stones and pebbles are coarse aggregates used to prepare concrete. They are engineering materials that have a certain strength after being mixed with cement, fly ash and other cementitious materials, fine aggregates, admixtures, and water. Material performance status, etc. Among them, the higher the needle-like and flake content of gravel or pebble has a great impact on the later strength of concrete, so the needle-like and flake content is a must-test item. However, the existing detection technology is to use needle and flake gauges to detect gravel and pebbles. Specifically, the test personnel visually remove the samples that are not needle flakes and then compare them one by one. The testers made subjective misjudgments, the test...

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
IPC IPC(8): B07B1/02B07B1/46
CPCB07B1/02B07B1/4609Y02W30/91
Inventor 赵家满刘东洲高昆勇王振华纪文雨
Owner CHINA RAILWAY NO 9 GRP ENG TESTING 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