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

A device and method for treating mining waste by in-situ carbonization of biomass

A carbonization treatment and treatment method technology, which is applied in the field of biomass in-situ carbonization treatment of mining wastes, can solve the problems of pollutant leakage endangering the environment and human health, prone to invisible hazards, damage to building materials, etc., and achieves accelerated physical The effects of weathering, improving fertility, and regulating flexibility

Active Publication Date: 2021-03-12
KUNMING UNIV OF SCI & TECH
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the direction of more research is the preparation of building materials, such as a green building material-biocement preparation method (CN106587681B), a production method and application of biocement based on low-priced calcium ions (CN107176798A), a development Foam cement composite self-insulating brick and its processing technology (CN104446193B), etc. These methods are a better resource utilization direction, but there will be some potential hazards, such as whether the oxidation of tailings will lead to damage to building materials, Whether polluted soil will cause pollutants to leak out and endanger the environment or human health, etc., cannot solve its potential safety problems, and is prone to invisible hazards

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
  • A device and method for treating mining waste by in-situ carbonization of biomass
  • A device and method for treating mining waste by in-situ carbonization of biomass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A treatment method for a device for in-situ carbonization of biomass to treat mining waste, comprising the following steps:

[0045] S1. Mixed material preparation: crush the biomass and mining waste according to the mass ratio of 3:7 and mix them evenly;

[0046] S2. Feeding: Add the mixed material prepared in step S1 into the reactor 1, the feeding rate is 50~150kg / min, and the feeding amount is 2 / 3 of the volume of the reactor 1;

[0047] S3. Carbonization reaction of the mixed material: ignite from the discharge ventilation grid structure, ignite the mixture material, start the fan 2, and the combustion air enters the reactor 1 from the discharge ventilation grid structure and goes upward, and the smoke generated by combustion is blown The fan 2 is introduced into the dust collector 3 for dust removal. During the reaction period, the flow rate of the combustion-supporting air entering the reactor 1 is controlled by the flow valve 6 to be 15L / min. When the temperatur...

Embodiment 2

[0050] A treatment method for a device for in-situ carbonization of biomass to treat mining waste, comprising the following steps:

[0051]S1. Preparation of mixed materials: crush biomass and mining waste in a mass ratio of 3:7, wherein the mining waste is polluted soil and waste earth and stone in a mass ratio of 5:1, crush and mix evenly;

[0052] S2. Feeding: Add the mixed material prepared in step S1 into the reactor 1, the feeding rate is 50~150kg / min, and the feeding amount is 2 / 3 of the volume of the reactor 1;

[0053] S3. Carbonization reaction of the mixed material: ignite the mixed material from the discharge ventilation grid structure, start the fan 2, and the combustion-supporting air enters the reactor 1 from the discharge ventilation grid structure and goes upward, and the smoke generated by combustion is blown The fan 2 is introduced into the dust collector 3 for dust removal. During the reaction period, the flow rate of the combustion-supporting air entering ...

Embodiment 3

[0056] A treatment method for a device for in-situ carbonization of biomass to treat mining waste, comprising the following steps:

[0057] S1. Preparation of mixed materials: crush biomass and mining waste in a mass ratio of 3:7, wherein the mining waste is polluted soil and tailings in a mass ratio of 5:2, pulverize and mix evenly;

[0058] S2. Feeding: Add the mixed material prepared in step S1 into the reactor 1, the feeding rate is 50~150kg / min, and the feeding amount is 2 / 3 of the volume of the reactor 1;

[0059] S3. Carbonization reaction of the mixed material: ignite the mixed material from the discharge ventilation grid structure, start the fan 2, and the combustion-supporting air enters the reactor 1 from the discharge ventilation grid structure and goes upward, and the smoke generated by combustion is blown The fan 2 is introduced into the dust collector 3 for dust removal. During the reaction period, the flow rate of the combustion-supporting air entering the reac...

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 device and a treatment method for in-situ carbonization of biomass to treat mining waste. The device includes a reactor, a fan, a dust remover, a pressure measuring device, a temperature measuring device, and a flow valve; the device of the invention can conveniently adjust the flow rate of the combustion-supporting air, thereby regulating the carbonization degree of biomass in the reactor, and has the advantage of flexible regulation. The method comprises the steps of: preparation of mixed material, feeding, carbonization reaction of mixed material, and discharging. The present invention mixes and carbonizes mining waste and biomass, can effectively improve the fertility and pH of mining waste after treatment, and accelerates the physical weathering and chemical weathering of mining waste, and thermally decomposes the metal sulfide content in mining waste. Reduce and improve the quality of mining waste.

Description

technical field [0001] The invention belongs to the technical field of mining waste treatment, and in particular relates to a device and a treatment method for in-situ carbonization of biomass to treat mining waste. Background technique [0002] Mining waste refers to the waste generated in the mining production process and polluted soil, such as tailings, waste earth and rocks, polluted soil, etc. A large amount of mining waste is piled up, and some of the debris formed by weathering will be washed into the water area by water, or even dissolve and seep into the groundwater, and some will be blown into the atmosphere by the wind, seriously polluting the environment. Moreover, some of these wastes contain harmful elements, which pose a threat to human health. Moreover, during the accumulation of mining waste, serious disasters such as landslides and mudslides will be caused. [0003] Stacking is a traditional disposal method for mining waste. Waste rocks are transported to...

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 Patents(China)
IPC IPC(8): B09B3/00B09B5/00
CPCB09B3/00B09B5/00B09B3/40
Inventor 田森林黄建洪赵群胡学伟李英杰李波陈杰宁平
Owner KUNMING UNIV OF SCI & TECH
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