Tailing recycling zero discharge system and process

A zero-emission and tailings technology, applied in filtration circuits, water/sludge/sewage treatment, filtration and separation, etc., can solve problems such as difficult operation and maintenance, large impact on the surrounding environment, inconvenient installation and commissioning, etc.

Inactive Publication Date: 2018-12-28
LUOYANG LONGZHONG HEAVY IND MACHINERY CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The above-mentioned treatment has high production costs, difficult operation and maintenance, inconvenient installation and debugging, and has a great impact on the surrounding environment. It cannot reasonably solve the problems of dry stacking of mine tailings, purification of mining and dressing tail water, and dry discharge of solid waste. In addition, non-metallic tailings ( Tailings)...

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
  • Tailing recycling zero discharge system and process
  • Tailing recycling zero discharge system and process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] like Figure 1-2 The shown tailings (tailings) recovery zero-emission system includes a tailings dry discharge machine 6, a trihydrogen purification body 7, a box filter press 8, and an under-screen water tank 9 is arranged on the lower side of the tailings dry discharge machine 6, The upper side of the under-screen water tank 9 is provided with a vibrating screen 1, and the upper side of the vibrating screen 1 is provided with a separator 2, the top of the under-screen water tank 9 is provided with an overflow port, and the top of the overflow port is connected with the sewage transfer tank 4, and the under-screen water tank 9 The bottom is connected to the separator 2 through the slurry pump 10, the separator 2 is connected to the sewage transfer tank 4 through the cyclone return pipe 5, the sewage transfer tank 4 is connected to the trihydrogen purification body 7 through the vertical pump 3, and the trihydrogen purification The upper part of the body 7 tank is conne...

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 belongs to the technical field of tailing recycling and discharge, and particularly relates to a tailing recycling zero discharge system and process. The system comprises a tailing dry discharge machine, a tri-hydrogen purifying body and a chamber type filter press. Tailings are subjected to mud and sand separation through the tailing dry discharge machine, mud-water separation through the tri-hydrogen purifying body and solid waste dry discharge through the chamber type filter press to achieve dehydration and recycling of the tailings and fine sand. The purified tail water suspended solid (SS) is less than 300mg/L (excluding special materials), higher than the third-level emission standard of tail water discharge in the mining industry in GB8978 Integrated Wastewater Discharge Standard, and the fresh water reuse rate is greater than 80%, in line with national standards for reuse of water resources for industrial mining, mineral processing and the like. The dry stacking and dry discharging of the solid waste are achieved. The moisture content of a pressure-filtered mud cake is less than 60-75%, reaching the national standard for dry stacking and dry discharging or blended landfill.

Description

technical field [0001] The invention belongs to the technical field of tailings (tailings) recovery and discharge, and in particular relates to a tailings (tailings) recovery zero-emission system and process. Background technique [0002] Tailings (tailing sand) are materials discarded after extraction of useful minerals through crushing, grinding, sorting and other processes in the concentrator, usually in the form of ore slurry and sand washing tail water. At present, the treatment of tailings in mineral processing plants is to build a thickener inside or near the mineral processing plant. The overflow of the thickener is returned to the mineral processing plant as backwater for reuse. The bottom flow of the thickener is pumped or piped to the tailings pond or Stockpiled in the mine dam, the clarified water from the tailings pond or tailings dam is returned to the beneficiation plant for reuse, or is discharged out after being treated up to standard. Another process is th...

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): B01D36/04C02F11/12
CPCB01D36/04C02F11/121C02F11/122
Inventor 白利明马娟孙磊
Owner LUOYANG LONGZHONG HEAVY IND MACHINERY CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap