Method for producing walling material by using papermaking white mud

A technology for paper-making lime mud and wall materials, applied in solid waste management, sustainable waste treatment, climate sustainability, etc., can solve the problems of clogging equipment, high production costs, threatening food production, etc., and reduce production energy consumption. and cost, low cost of industrialized operation, and the effect of promoting sustainable development

Inactive Publication Date: 2012-05-02
绵阳西南科大瑞方科技有限公司
View PDF4 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] (1) Since the residual alkali in the white mud will produce efflorescence when the product (whether it is a block or cement) encounters moisture, the strength of the damage will be affected and the surface of the wall will be affected. It is difficult for the produced blocks and other products to meet the national product quality standards requirements;
[0009] (2) Adding too much white mud will affect the strength of building materials, because its original activity is small, which has a significant impact on the strength indicators of the product, that is, compression resistance and flexural resistance; and the addition of cement production often results in residual alkali at hig

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
  • Method for producing walling material by using papermaking white mud
  • Method for producing walling material by using papermaking white mud
  • Method for producing walling material by using papermaking white mud

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A method for producing wall materials using papermaking white mud, comprising the following steps:

[0037] 1) By weight percentage, take 43.5% of white mud, 45% of lithium slag, 10% of PO42.5 cement, and 1.5% of active stimulating agent (RDDM). Add to the mixer and mix for 3 minutes, then pour into the mold, and vibrate 120 times on the vibrating table to form;

[0038] 2) Put the mold in a curing box with a temperature of 20±1°C and a humidity of 91% for 20 hours, then remove the mold, and then put it in a curing box with a temperature of 65°C for 20 hours to obtain the wall material.

Embodiment 2

[0040] A method for producing wall materials using papermaking white mud, comprising the following steps:

[0041] 1) In terms of percentage by weight, take 48.9% of white mud, 30% of lithium slag, 20% of PO42.5 cement, and 1.1% of active activator (RDDM), mix it in a mixer for 5 minutes, then pour it into the mold, and 80 vibrations on the vibrating table for forming;

[0042] 2) Put the mold in a curing box with a temperature of 20±1°C and a humidity of 92% for 24 hours, then remove the mold, and then put it in a curing box with a temperature of 65°C for 30 hours to obtain the wall material.

Embodiment 3

[0044] A kind of method utilizing white mud to produce wall body material is characterized in that: it comprises:

[0045] 1) By weight percentage, take 58.2% of white mud, 20% of lithium slag, 20% of PO42.5 cement, 1.8% of active stimulating agent (RDDM), mix in a mixer for 10 minutes, then pour into the mold, and 60 vibrations on the vibrating table for forming;

[0046] 2) Put the mold in a curing box with a temperature of 20±1°C and a humidity of 95% for 30 hours, then remove the mold, and then put it in a curing box with a temperature of 65°C for 24 hours to obtain the wall material.

[0047] The wall body brick that the wall body material that this example is made is made by autoclave method, through measuring, the mechanical property of excellent product is as follows:

[0048]

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 method for producing a walling material by using papermaking white mud. The method is characterized by comprising steps of: taking 40-60 percentage (by weight) of papermaking white mud, 20-45 percentage (by weight) of lithium slag, 10-20 percentage (by weight) of cement and 1-6 percentage (by weight) of active excitant, and adding into a mixer for mixing, wherein the active excitant is made of a mixture of polyacrylic acid, polycarboxylic acid water-reducing agent and aluminum potassium sulfate; dispensing the mixture into a group of molds, and placing on a vibratingtable of a block molding machine for molding by vibration; placing the molds filled with the mixed materials into a curing case with temperature of 15-25 DEG C and humidity more than 90% to cure for 20-30 hours and then demolding; and further putting into a curing case with temperature of 60-80 DEG C to cure for 20-30 hours by steaming, thereby obtaining the walling material. The method for producing the walling material by using the papermaking white mud has the advantages of good product performance, reducing pollution to environment caused by industrial refuse, reducing manufacturing cost of the walling material, saving a large number of building materials, reducing energy consumption, and being both economical and environmental-friendly.

Description

technical field [0001] The invention belongs to a method for preparing block-like or other-shaped building components in building components, and relates to a method for mainly using waste to prepare building wall materials—blocks, and in particular to a method for producing wall materials using papermaking white mud method. It is suitable for mainly using waste papermaking white mud, lithium slag, etc. to produce building wall materials - blocks. Background technique [0002] Papermaking white mud (hereinafter referred to as white mud) comes from the white mud recovery stage of the alkali recovery workshop in the papermaking process; in the papermaking process, the pulping black liquor is extracted, evaporated and concentrated, and roasted in the alkali recovery furnace to obtain the melt. Dissolve in water to form a green liquid, then add lime to the green liquid for causticization reaction to obtain a white precipitate, which is white mud. [0003] In papermaking lime m...

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): C04B28/00C04B18/30
CPCY02W30/91
Inventor 刘来宝王钧唐凯靖张凯义
Owner 绵阳西南科大瑞方科技有限公司
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