CN105503036A

CN105503036A - Waste sand/furnace slag composite material

Info

Publication number: CN105503036A
Application number: CN201510852673.4A
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-11-26
Filing date: 2015-11-26
Publication date: 2016-04-20

Abstract

A waste sand/furnace slag composite material is disclosed. According to the invention, foundry waste sand, furnace slag, dust and sludge, which are used as main raw materials, and waste plastic films and waste plastic products, which are used as a binder, are compounded through a certain technology to obtain a non-metallic material. The product has processability of saw, nail, drill, plane and the like, has higher physical and mechanical properties such as fracture resistance, tensile strength, compression resistance, impact resistance and the like than cement products, and also has multiple properties such as waterproofness, corrosion resistance, easy forming performance and the like. The composite material of the invention can be used in a wide range of fields to replace timber, cement, plastic, steel, etc., and can be used in manufacturing packing boxes, waterproof boards, anti-corrosive plates, protecting plates, acoustic panels, pantile, sleepers, furniture, drainpipes and the like.

Description

A kind of waste sand-slag composite

A large amount of antiquated sands, slag, dust, mud will be got rid of every day by molding floor, transport severe contamination workshop condition if can not clear up in time, hinder production operation, even if the pollution that also can cause another ground can be transported, and not only cost but also take up an area.Setting up one only has raw material to transport, and product transports and the case type molding floor of effluent discharge is not the effective way of condensation improvement, changing waste into valuable.

Along with the universalness day by day of plastics, the waste of various industrial or agricultural and Plastic Packaging Materials, mulch film, goods etc. in living has become the main constituent of city and country rubbish.These wastes regenerate merely and are subject to plastics variety, color and the condition such as not comtaminated restriction.If using it as binding agent, the refuse that is used for solidifying other industries will be at one stroke two environmental practices.

Silicon dioxide microparticle in antiquated sand, slag, dust, mud has very high physical and mechanical property, plastic waste then has good toughness, water-fast, the performance such as corrosion resistant, easy-formation, is combined by these two kinds of waste materials, has synthesized a kind of type material with multiple material performance.It has the multiple performances such as timber, concrete, plastics, steel.By international online retrieval, consult ESALL document with DIAL350 with 351 documents, all do not find the patent identical with content of the present invention.

Various antiquated sand, slag is the object of the invention is to mix the plastic waste matched with it, through certain processes, be combined into a kind of novel metalloid material, so both digest the plastic waste in the refuse of molding floor and city, rural garbage, produce again a kind of matrix material with timber, concrete, plastics, steel multiple material performance.

This composite-material formula and manufacture craft are: by categorised collections such as antiquated sand, slag, dust, mud, make it be dried to water content less than 3% by nature and artificial method, then crushed and screened the raw material obtaining diameter and be less than 0.5 millimeter, classification storage is for subsequent use.Collecting the various waste polyethylenes of coming, the goods of waste polypropylene or waste polyvinyl chloride, sorting is sorted out, and cleans to surface attachments and is less than 1%, then shred granulating group be less than 5 millimeters material, preserve for subsequent use.

Get antiquated sand, slag and plastics according to antiquated sand: plastics=1 ~ 5: 1 coordinates, mix in input kneading machine, temperature control 100 ~ 200 DEG C, mixing time be with till evenly kneading into granule, the mixture kneaded adds in the forcing machine that temperature controls within the scope of 150 ~ 300 DEG C and extrudes with sticky pasty state, and its form is can be full of die cavity under stress.If extrudate is shaping with pressing machine, pressure range 50 ~ 250 kilograms per centimeter 2, pressurize 1 ~ 5 minute, namely uses water cooling after depanning.If extrudate is shaping with rolling press, can depress to 0.12 ~ 2.4 m/min of pulling speed the sheet material being less than 6 millimeters.

Fig. 1 is the schema of this manufacturing process.

The method that a kind of existing social benefit of advantage of the present invention and positively effect Shi Shi molding floor changing waste into resources has an economic benefit again, it makes casting refuse in the past become today and manufactures a kind of cheap price and excellent quality raw material of nonmetallic composite in the future; Which eliminate public hazards, expand production area, improve labour productivity; It has saved the spending of effluent discharge, adds and pays industry income, solve surplus labor; It promote the lateral ties between each industrial sector, for development boundary science technology plays pivotal role.

This matrix material had both had the processing characteristics such as saw, nail, brill, plane of timber, had again higher than the anti-folding of cement products, tension, resistance to compression, the physical and mechanical property such as shock-resistant, also had the multiple performances such as the waterproof of plastics, anticorrosion, easy-formation.Its raw material sources are extensive, cheap, manufacturing process simple, the production duration is short, can replace the materials such as timber, cement, plastics, iron and steel.Can in order to manufacture packaging boxboard, water board, corrosion protection plate, protective board, insulating board, pantile, sleeper, furniture, water shoot etc.

Embodiment: with the water glass antiquated sand 45% of certain molding floor, water content less than 1%, granularity 50 order; Arc furnace slag 30%, water content less than 1%, granularity 100 order; Waste plastics film 25%, knead at 200 DEG C of temperature after clamp-on model, make the plate of 100 × 50 × 50 millimeters at 200 kilograms per centimeter 2 pressure, pressurize, after 5 minutes, namely obtains this kind of matrix material with cold water chilling.Its proportion 1.56, ultimate compression strength 320 kilograms per centimeter 2, bending strength 250 kilograms per centimeter 2, water-intake rate 0.05%, in 0.1 gram equivalent of hydrochloric acid and 0.1 gram equivalent of sodium hydroxide solution, each immersion is after 48 hours, do not find that there is corrosion condition, can cut easily with saw, and firmly can hammer into nail, be screwed into wood screw, wrinkle resistant after brushing paint, the gloss painted can be kept.

In place with good conditionsi, adopt fresh sand to make raw material, processing condition are constant, and obtained sheet material properties all meets or exceeds antiquated sand goods, and has desirable color and luster, provide better condition to design decorative pattern, color.

Claims

1. a waste sand-slag composite, it is characterized in that: (1) composition of raw materials waste sand-slag: plastic waste=1 ~ 5: 1, (2) technological process of production and processing condition are collected by waste sand-slag to be dried to moisture content less than 3%, crushing and screening to grain diameter is less than 0.5 millimeter and stocks stand-by, plastic waste is classified, removing surface adhesion thing makes it be less than 1%, chopping is less than 5 millimeters to grain group and stocks, prepare two kinds of materials are proportioned, add in kneading machine and mix at 100 ~ 200 DEG C of temperature, knead, mixing time is with till evenly kneading into granule, then mixture is added in the forcing machine that temperature controls within the scope of 150 ~ 300 DEG C and extrude with sticky pasty state, at 50 ~ 250 kilograms per centimeter 2 forming under the pressure, pressurize 1 ~ 5 minute, enter water cooling after depanning to get product.

2. matrix material as claimed in claim 1, is characterized in that making raw material with fresh sand and new polyethylene, polypropylene, polyvinyl chloride.