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

Method for improving flowability of milltailings and application of method

A fluidity and tailings technology, which can be used in earth-moving drilling, filling, safety devices, etc., can solve problems such as the cumbersome preparation method of enhanced tailings mortar, improve enterprise and social economic benefits, improve strength, and improve slurry concentration. Effect

Inactive Publication Date: 2018-02-23
TONGLING NON FERROUS METAL GROUP CORP
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the preparation method of the existing method for enhancing the fluidity of tailing mortar is cumbersome

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
  • Method for improving flowability of milltailings and application of method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1: A method for enhancing the fluidity of tailings, which includes the following steps: (1), configuring a sodium carboxymethyl cellulose solution with a mass fraction of 0.1%; (2), preparing a carboxymethyl cellulose solution with a mass fraction of 0.1% The sodium methyl cellulose solution is added to the sand silo and fully mixed with the sand liquid. The addition amount of the sodium carboxymethyl cellulose solution is 30kg / m 3 .

Embodiment 2

[0013] Embodiment 2: A method for enhancing the fluidity of tailings, which includes the following steps: (1), configuring a sodium carboxymethyl cellulose solution with a mass fraction of 0.1%; (2), preparing a carboxymethyl cellulose solution with a mass fraction of 0.1% The sodium methyl cellulose solution is added to the sand silo and fully mixed with the sand liquid. The addition amount of the sodium carboxymethyl cellulose solution is 40kg / m 3 .

Embodiment 3

[0014] Embodiment 3: A method for enhancing the fluidity of tailings, which includes the following steps: (1), preparing a sodium carboxymethyl cellulose solution with a mass fraction of 0.1%; (2), preparing a carboxymethyl cellulose solution with a mass fraction of 0.1% The sodium methyl cellulose solution is added into the sand silo and fully mixed with the sand liquid. The addition amount of the sodium carboxymethyl cellulose solution is 60kg / m 3 .

[0015] Sodium carboxymethyl cellulose is generally used as a suspending agent in mud retaining wall drilling, but the drilling slag will be suspended. The applicant took advantage of this characteristic of sodium carboxymethyl cellulose and applied it as an additive for tailings mortar. After many tests on site, it was believed that a dispersant solution of 0.1% mass concentration was ideal, mainly because it was easy to distribute evenly, Thereby, the dispersant solution is fully mixed with the sand liquid in the sand bin.

...

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 method for improving flowability of milltailings and application of the method. The method comprises the following steps: (1) preparing a 0.1% sodium carboxy methyl cellulosesolution in mass fraction; and (2) putting the 0.1% sodium carboxy methyl cellulose solution into a sand cabin, and sufficiently mixing with a sand liquid, wherein the addition amount of the sodium carboxy methyl cellulose solution is 30-60kg / m<3>. The method has the beneficial effects that due to mixing of the 0.1% sodium carboxy methyl cellulose solution with the sand liquid, the flowability ofmaterial slurry is improved, then the concentration of the material slurry is increased, the water drainage expense is reduced, the filling strength is improved, and the method has great significances for both the company and social and economic benefits.

Description

technical field [0001] The invention relates to the field of mining, in particular to a method for tailings fluidity and its application. Background technique [0002] With the increasing requirements of environmental protection, tailings are generally used to fill goafs in underground mining. This not only reduces tailings emissions, but also facilitates ground pressure control. Among them, the fluidity of the slurry is a very key indicator. The improvement of the fluidity is conducive to improving the slurry concentration, reducing the pipe blockage accident, improving the strength of the backfill body, and reducing the drainage cost. Therefore, high-concentration filling has become the trend of underground filling in mines. Chinese Invention Patent Publication No. CN1039735 discloses a high-concentration full-tail mortar additive, using a flow agent and a foaming agent as a composite additive for preparing a high-concentration full-tail mortar with a solid content of not...

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): E21F15/00
CPCE21F15/005
Inventor 郑攻关桂旺华方志甫袁世伦陈金平徐刚姚志伟韦章能谢经鹏覃星朗
Owner TONGLING NON FERROUS METAL GROUP CORP
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