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

Coal gangue porous soil conditioner and preparation method thereof

A soil conditioner, coal gangue technology, applied in soil conditioning materials, chemical instruments and methods, organic fertilizers, etc., to prevent soil erosion, facilitate plant growth, and increase water retention.

Inactive Publication Date: 2020-05-08
SHANXI UNIV
View PDF18 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for preparing soil conditioner by using coal gangue to solve the problem of resource utilization of coal gangue and the improvement of air permeability and water retention of compacted soil

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
  • Coal gangue porous soil conditioner and preparation method thereof
  • Coal gangue porous soil conditioner and preparation method thereof
  • Coal gangue porous soil conditioner and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The raw materials and formula of this embodiment are: 96% of coal gangue powder under a 100-mesh sieve, 4% of ordinary silicon 42.5 cement, 0.1% of aluminum powder, and a water-cement ratio of 0.62. The preparation process is as follows: first grind the coal gangue raw materials to a 100-mesh sieve, then quantitatively weigh 960g of coal gangue powder, 40g of ordinary silicon 42.5 cement, 1g of aluminum powder, and 620g of tap water; Add it into the mixing tank and stir for 5 minutes at a speed of 800 rpm; then add a foaming agent and continue stirring for 30 seconds at a stirring speed of 1200 rpm; then quickly pour the slurry into a 100×100×200 mm In the steel mold, stop foaming for 30 minutes; put the foam and the mold together in the curing box for curing, the curing temperature is 50 ° C, and the curing time is 20 hours; take out the foam and the mold from the oven, and Remove the foam block from the mold, and place it in an oven at 105°C for 20 hours; then put the...

Embodiment 2

[0028] The raw materials and formula of this embodiment are: 93% of coal gangue powder under a 100-mesh sieve, 7% of ordinary silicon 42.5 cement, 0.3% of aluminum powder, and a water-cement ratio of 0.7. The preparation process is as follows: first grind the coal gangue raw materials to 100-mesh sieve, then quantitatively weigh 930g of coal gangue powder, 70g of ordinary silicon 42.5 cement, 3g of aluminum powder, and 700g of tap water; Add it into the mixing tank and stir for 5 minutes at a speed of 800 rpm; then add a foaming agent and continue stirring for 30 seconds at a stirring speed of 1200 rpm; then quickly pour the slurry into a 100×100×200 mm In the steel mold, stop foaming for 30 minutes; put the foam and the mold together in the curing box for curing, the curing temperature is 40 ° C, and the curing time is 25 hours; take out the foam and the mold from the oven, and Remove the foam block from the mold, and place it in an oven at 105°C for 30 hours; then put the dr...

Embodiment 3

[0030] The raw materials and formula of this embodiment are: 90% coal gangue powder under a 100-mesh sieve, 10% ordinary silicon 42.5 cement, 0.3% aluminum powder, and a water-cement ratio of 0.7. The preparation process is as follows: first grind the coal gangue raw materials to 100-mesh sieve, then quantitatively weigh 900g of coal gangue powder, 100g of ordinary silicon 42.5 cement, 3g of aluminum powder, and 700g of tap water; Add it into the mixing tank and stir for 5 minutes at a speed of 800 rpm; then add a foaming agent and continue stirring for 30 seconds at a stirring speed of 1200 rpm; then quickly pour the slurry into a 100×100×200 mm In the steel mold, stop foaming for 30 minutes; put the foam and the mold together into the curing box for curing, the curing temperature is 50 ° C, and the curing time is 15 hours; take out the foam and the mold from the oven, and Remove the foam block from the mold, and place it in an oven at 105°C for 20 hours; then put the dried f...

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 sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a coal gangue porous soil conditioner and a preparation method thereof, belongs to the technical field of coal gangue utilization and soil conditioner preparation, and aims toprovide a preparation method for preparing a soil conditioner from coal gangue so as to solve the problems of resource utilization of the coal gangue and improvement of air permeability and water retention of hardened soil. The preparation method comprises the following steps: grinding the coal gangue into powder, adding a cementing material and water to prepare slurry, adding a foaming agent intothe slurry, carrying out injection molding foaming, carrying out maintenance molding on the foaming body, and crushing the molded block into particles to obtain the coal gangue porous soil conditioner. The porous soil conditioner prepared by taking the coal gangue as the main raw material not only can efficiently utilize the coal gangue on a large scale, but also can improve the soil performance,improve the water retention property, the loss resistance, the air permeability and the heat preservation property of soil, and is beneficial to plant growth and water and soil loss prevention.

Description

technical field [0001] The invention belongs to the technical field of coal gangue utilization and preparation of soil conditioner, and in particular relates to a coal gangue porous soil conditioner and a preparation method thereof. Background technique [0002] Coal gangue is solid waste generated during coal mining and processing. The output is about 15% to 20% of coal output. About 7 billion tons have been accumulated. It occupies a large amount of land and the accumulation will damage the local ecological environment. One of the industrial solid wastes with the largest discharge volume at present, urgently needs resource utilization and efficient utilization. Coal gangue mainly contains silicon, aluminum, carbon, iron, sulfur, calcium and other elements, and also contains a small amount of potassium, organic matter and trace elements beneficial to crops, which can be used as soil for plant growth. [0003] On the other hand, due to the long-term use of chemical fertiliz...

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): C09K17/08C09K17/10C09K101/00
CPCC09K17/08C09K17/10C09K2101/00
Inventor 廖洪强苏迪高宏宇程芳琴
Owner SHANXI UNIV
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