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

A sandwich porous roof matrix block and its preparation method

A matrix block and sandwich technology, applied in the field of value-added utilization of agricultural waste, can solve the problems of unfavorable mass transportation, hoisting, large changes in nutrient content, poor quality stability, etc., achieve good water absorption and water retention, and small production investment , the effect of strong molding ability

Active Publication Date: 2021-12-17
HUAZHONG AGRI UNIV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of matrix has poor forming ability, which is not conducive to mass transportation and hoisting
At the same time, the content of nutrients in different batches of products varies greatly, and the quality stability is poor

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 sandwich porous roof matrix block and its preparation method
  • A sandwich porous roof matrix block and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040]Firstly, after drying the whole plant of rice straw and dusting off the sand, it is pulverized and sieved with a pulverizer to obtain straw powder with a size of 50 mesh, and spread it evenly on the bottom of the graphite crucible 1 . In addition, straw powder, 100-mesh aluminum powder, ferrosilicon powder, potassium nitrate powder, sodium nitrate powder and sodium fluoride powder were uniformly mixed according to the mass ratio of 40:45:12:100:78:2, and the obtained mass was 20 times the first mixed powder 5 of the straw powder 7, and put it into the graphite crucible 1 on top of the straw powder 7. Take another straw powder, 100-mesh aluminum powder, ferrosilicon powder, potassium nitrate powder, sodium nitrate powder and sodium fluoride powder and mix them uniformly according to the mass ratio of 87:45:12:100:78:2 to obtain the mass Be the second mixed powder 6 of 20 times of the straw powder 7, and put it into the first mixed powder 5 in the graphite crucible 1. Con...

Embodiment 2

[0042] Firstly, after drying the whole plant of corn stalks and dusting off the sand, they were crushed and sieved with a pulverizer to obtain 100-mesh straw powder, which was evenly spread on the bottom of the graphite crucible 1 . In addition, straw powder, 200-mesh aluminum powder, ferrosilicon powder, potassium nitrate powder, sodium nitrate powder and sodium fluoride powder were uniformly mixed according to the mass ratio of 40:54:28:109:85:4, and the obtained mass was 20 times the first mixed powder 5 of the straw powder 7, and put it into the graphite crucible 1 on top of the straw powder 7. Take another straw powder, 200-mesh aluminum powder, ferrosilicon powder, potassium nitrate powder, sodium nitrate powder and sodium fluoride powder and mix them uniformly according to the mass ratio of 87:54:28:109:85:4 to obtain the mass Be the second mixed powder 6 of 20 times of the straw powder 7, and put it into the first mixed powder 5 in the graphite crucible 1. Configure t...

Embodiment 3

[0044] Firstly, after drying the whole plant of wheat straw and dusting off the sand, it is pulverized and sieved with a pulverizer to obtain straw powder with a size of 80 meshes, which is evenly spread on the bottom of the graphite crucible 1 . Another straw powder, 150-mesh aluminum powder, ferrosilicon powder, potassium nitrate powder, sodium nitrate powder and sodium fluoride powder were uniformly mixed according to the mass ratio of 40:50:20:105:82:3, and the obtained mass was 20 times the first mixed powder 5 of the straw powder 7, and put it into the graphite crucible 1 on top of the straw powder 7. Take another straw powder, 150-mesh aluminum powder, ferrosilicon powder, potassium nitrate powder, sodium nitrate powder and sodium fluoride powder and mix them uniformly according to the mass ratio of 87:50:20:105:82:3 to obtain the mass Be the second mixed powder 6 of 20 times of the straw powder 7, and put it into the first mixed powder 5 in the graphite crucible 1. Co...

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
densityaaaaaaaaaa
diameteraaaaaaaaaa
densityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a sandwich porous roof matrix block and a preparation method thereof. Crush and sieve the whole crop straw and evenly spread it on the bottom of the crucible. Take another straw powder, mix it uniformly with aluminum, ferrosilicon, potassium nitrate, sodium nitrate and sodium fluoride in different proportions, and place the different mixed powders layer by layer on the existing powder in the crucible according to the order. Then spread the magnesium powder evenly on the powder surface in the crucible so that it completely covers the powder in the crucible. Then put the crucible containing the powder in another larger crucible, fill fine river sand between the big and small crucibles, ignite the magnesium powder in the small crucible, and wait until all the powders in the crucible have been burned and completely cooled, and the sandwich is obtained. Core porous roof matrix blocks. The raw material of the invention is cheap, easy to obtain, and renewable; the production input is small, the energy consumption is low, and the efficiency is high; the operation is simple and the reproducibility is good; Excellent water absorption and water retention, great promotion value.

Description

technical field [0001] The invention belongs to the field of value-added utilization of agricultural waste, and relates to a preparation method of a planting substrate, in particular to a sandwich porous roof substrate block and a preparation method thereof. Background technique [0002] Roof matrix is ​​mainly used for vegetation planting on green roofs, and then realizes urban ecological functions such as improving air quality, regulating heat island effect, and purifying rainwater. It should have the advantages of small specific gravity, stable properties, high porosity, and good water absorption and retention. According to the different materials, the roof matrix is ​​divided into three categories: organic matrix, inorganic matrix and composite matrix. Among them, organic substrates, such as natural peat, straw, wood chips, branches and leaves, chaff, etc., are rich in humus, have good water retention and fertilizer retention, but poor molding ability, and usually contai...

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): A01G24/10A01G24/27A01G24/46A01G9/04
CPCA01G24/46A01G24/27A01G24/10A01G9/04
Inventor 刘念牛文娟黎静吴可袁巧霞
Owner HUAZHONG AGRI 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