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

Method for preparing fracturing sand from garbage incineration fly ash

A technology for waste incineration fly ash and fracturing sand, which is applied in the field of waste recycling, can solve problems such as slow sales and affect the normal operation of waste incineration treatment, achieve great social benefits, realize waste reduction, and facilitate industrialized production.

Inactive Publication Date: 2019-12-20
WUHAN UNIV OF TECH
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the common method is to make bricks from fly ash, but it may be affected by seasonal sales in the market, and there is a problem of slow sales, which will seriously affect the normal operation of waste incineration.

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Waste incineration fly ash, bauxite, manganese ore powder and other raw materials are dried in an electric heating constant temperature blast drying box, then are ground separately with a planetary ball mill, placed on a vibrating sieve machine to pass through a 325-mesh standard screen, and the part on the screen continues to be ground pink;

[0027] The mass ratio of the under-sieve sample is bauxite: fly ash: manganese ore powder = 140g: 60g: 12g, mix evenly, spray into balls in a disc granulator, and stop spraying when the target particle size is observed. Prevent the length of the material ball from being too large, keep the disc to continue to rotate, make the material ball further roll, and sieve to obtain the semi-finished fracturing proppant with a particle size of 20-40 mesh;

[0028] Slowly put the semi-finished product into the porcelain ark and dry it in an oven at 105°C;

[0029] The dried samples were sintered in a muffle furnace at 1200°C for 1.5 hours,...

Embodiment 2

[0032] Waste incineration fly ash, bauxite, manganese ore powder and other raw materials are dried in an electric heating constant temperature blast drying box, then are ground separately with a planetary ball mill, placed on a vibrating sieve machine to pass through a 325-mesh standard screen, and the part on the screen continues to be ground pink;

[0033] The mass ratio of the under-sieve sample is bauxite: fly ash: manganese ore powder = 160g: 40g: 8g, mix evenly, spray into balls in a disc granulator, and stop spraying when the target particle size is observed. Prevent the length of the material ball from being too large, keep the disc to continue to rotate, make the material ball further roll, and sieve to obtain the semi-finished fracturing proppant with a particle size of 20-40 mesh;

[0034] Slowly put the semi-finished product into the porcelain ark and dry it in an oven at 105°C;

[0035] Place the dried sample in a muffle furnace for sintering at 1250°C for 2 hour...

Embodiment 3

[0038] Waste incineration fly ash, bauxite, manganese ore powder and other raw materials are dried in an electric heating constant temperature blast drying box, then are ground separately with a planetary ball mill, placed on a vibrating sieve machine to pass through a 325-mesh standard screen, and the part on the screen continues to be ground pink;

[0039] The mass ratio of the under-sieve sample is bauxite: fly ash: manganese ore powder = 180g: 20g: 4g, mix evenly, spray into balls in a disc granulator, and stop spraying when the target particle size is observed. Prevent the length of the material ball from being too large, keep the disc to continue to rotate, make the material ball further roll, and sieve to obtain the semi-finished fracturing proppant with a particle size of 20-40 mesh;

[0040] Slowly put the semi-finished product into the porcelain ark and dry it in an oven at 105°C;

[0041] Put the dried sample in a muffle furnace for sintering at 1300°C for 2.5 hour...

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

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
particle size (mesh)aaaaaaaaaa
densityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for preparing fracturing sand from garbage incineration fly ash. The method comprises: drying garbage incineration fly ash, bauxite and manganese ore powder, respectively grinding into powder by a planetary ball mill, screening by a 325-mesh standard sieve, fully and uniformly mixing the obtained raw materials according to a certain ratio, carrying out spray balling in a disc granulator, and screening to obtain a fracturing propping agent semi-finished product with a particle size of 20-40 meshes; placing the semi-finished product into a porcelain ark, and drying in a drying oven; and sintering the dried semi-finished product in a muffle furnace for 1-3 h at a temperature of 1200-1400 DEG C, cooling to a room temperature along with the furnace, and screening to obtain a fracturing propping agent product with a particle size of 20-40 meshes. According to the present invention, the fracturing sand is prepared from the mixture of garbage incineration fly ash, bauxite and manganese mineral powder through a series of methods so as to obtain the nearly spherical high-strength low-density particles; the preparation method is simple, and is suitable for industrial production, and the obtained product can meet the performance requirements of fracturing propping agents.

Description

technical field [0001] The invention belongs to the technical field of waste resource utilization, and in particular relates to a method for preparing fracturing sand by utilizing waste incineration fly ash. Background technique [0002] 35.8% of my country's terrestrial oil resources are distributed in relatively harsh environments such as mountains, Gobi, plateaus, and swamps, and most of them are stored at a depth of 3000m, making it difficult to exploit. The oil fields with shallow wells are almost exhausted in various countries, and the oil and gas wells drilled are gradually deepening, and the permeability is getting weaker and weaker, so they must be exploited through fracturing. As a new type of natural gas and oil extraction technology, oil and gas fracturing technology can prolong the gas production life of oil and gas wells and increase the oil and gas production rate, especially for low permeability deposits. [0003] Fracturing sand is an essential raw material...

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): C04B35/10C04B35/622C09K8/80
CPCC04B35/10C04B35/62204C04B2235/3208C04B2235/3267C04B2235/3272C04B2235/3418C04B2235/77C04B2235/96C09K8/80
Inventor 夏世斌李盼冯真
Owner WUHAN UNIV OF 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