CN102432938A

CN102432938A - Regenerated composite material applicable to manufacturing well rings and well covers

Info

Publication number: CN102432938A
Application number: CN2011102597583A
Authority: CN
Inventors: 许开强
Original assignee: MINQIN COUNTY WEIRUI ENVIRONMENTAL PROTECTION CO Ltd
Current assignee: MINQIN COUNTY WEIRUI ENVIRONMENTAL PROTECTION CO Ltd
Priority date: 2011-08-30
Filing date: 2011-08-30
Publication date: 2012-05-02
Anticipated expiration: 2031-08-30
Also published as: CN102432938B

Abstract

The invention relates to a building engineering material, in particular to a regenerated composite material, which is convenient in matching ratio, simple in operation and low in cost, meets various performance indexes and is applicable to manufacturing well rings and well covers. The regenerated composite material comprises the following components in percent by weight: 60-65% of waste polyethylene, 30-35% of waste nickel sand, 1-3% of anti-ageing agent, 1-3% of rosin and 1-2% of waste engine oil, wherein the coumarone with the same percent can be used for replacing the rosin. Compared with the prior art, the regenerated composite material has the beneficial effects that the waste polyethylene and the waste nickel sand are adopted as main raw materials of the material; under the premise of ensuring the performance indexes, the used amount of the waste nickel sand is reduced, and simultaneously a simpler and effective aid is adopted, so that the resource is saved, the cost is reduced, the environment is protected and large economic benfit and environmental benefit are created; and the compression strength is good, the bearing capability is high, the matching is convenient, the operation is simple, and the use is convenient, so that the regenerated composite material is very beneficial to production and application.

Description

A kind of regenerated composite material of making walling crib, well lid that is applicable to

Technical field

The present invention relates to a kind of architecture engineering material, be specially a kind of regenerated composite material of making walling crib, well lid that is applicable to.

Background technology

On the street in city, the inspection chamber of the various uses that is seen everywhere, the inspection chamber that for example supplies water, fire-fighting inspection chamber, combustion gas inspection chamber, power check well, communication inspection chamber or the like; What mostly all adopts is well lid and the walling crib that traditional cast iron is processed inspection chamber, though the supporting capacity of casting iron well lid is strong, and its material cost and to expend the energy big; Perishable its various aspects of performance index that influences; Need make regular check on, and because it has higher recovery value, so often stolen; Be corrosion or stolenly all may cause various accidents that the little normal operation that then influences various systems greatly then may cause casualties and financial loss.

In order to solve the problem that above-mentioned technological medium cast iron well lid and walling crib exist; The well lid and the walling crib of matrix material have just occurred, what existing combined manhole cover all adopted is that the waste or used plastics that reclaims is done matrix, does toughener with abandoned mine slag or flyash; Add various auxiliary agents then; Compound through stirring again, extrude the compression moulding of pressurizeing at last after the fusing of heating.Wherein to be mainly Vilaterm, Vestolen PP 7052 and SE be main to waste or used plastics, and Vilaterm comprises new LDPE (film grade) and high-pressure polyethylene again, and the hardness of high density polyethylene(HDPE) is better relatively; But still can not meet the demands, and the doping of various waste or used plastics, material hardness also further reduced; Do toughener so add abandoned mine slag or flyash, the general toughener that adds is many more, and the intensity of processing material at last is big more; The consequent is that fragility also can be big more, so waste or used plastics and as the abandoned mine slag of toughener or the ratio of flyash all is controlled at about 1: 1 in the prior art, and needs to add miscellaneous auxiliary agent and adjust properties of materials; Just can make it satisfy the various performance index of well lid and walling crib; Troublesome poeration, proportioning is loaded down with trivial details, is unfavorable for improving producing and the simplification processing sequence.

Summary of the invention

The object of the present invention is to provide a kind of proportioning convenient, simple to operate, with low cost and satisfy the regenerated composite material of making walling crib, well lid that is applicable to of each item performance index.

A kind of regenerated composite material of making walling crib, well lid that is applicable to is characterized in that each component and the weight percent of said material are: waste polyethylene 60%-65%, useless nickel sand 30%-35%, anti-aging agent 1%-3%, rosin 1%-3%, used oil 1%-2%.

Further, describedly a kind ofly be applicable to that each component and weight percent are in the regenerated composite material of making walling crib, well lid: waste polyethylene 62%, useless nickel sand 33%, anti-aging agent 2%, rosin 2%, used oil 1%.

Further, describedly a kind ofly be applicable to that the coumarone of available same composition replaces described rosin in the regenerated composite material of making walling crib, well lid.

The present invention compares prior art, has the following advantages:

1) main two kinds of component waste polyethylenes and useless nickel sand in the said material; And the used oil in other three kinds of components of adding is the waste and scrap of recovery, economizes on resources, and solved the problem that well lid is lost; Especially saved a large amount of metallic substance; Also reduce cost simultaneously, reduce and sell and maintenance cost, practiced thrift municipal funds greatly.

2) owing to the main raw material that has adopted waste polyethylene and useless nickel sand as material; Waste and old mulch film, handbag and daily plastic articles problem of environment pollution caused hard to manage have been solved; Solved useless nickel sand wash land occupation problem of environment pollution caused again; Turn waste into wealth, created huge economic benefit and environmental benefit.

3) simple adopt the matrix of waste polyethylene as material; Waste polyethylene can form toughness high density polyethylene(HDPE) preferably in the operation of following process; Thereby the ultimate compression strength of well lid of processing and walling crib is good; Supporting capacity significantly improves, and combines together with useless nickel sand and auxiliary agent simultaneously, and physical strength further promotes.

4) in the material component; The ratio of waste polyethylene and useless nickel sand is about 2: 1; Increase by 37% than plastic waste consumption of the prior art, and the consumption of abandoned mine sand and flyash has reduced 27%, under the prerequisite that guarantees that material property is constant or even improve; The cost of abandoned mine slag and the flyash still cost than waste or used plastics is high; Add that the waste or used plastics that is referred to as white pollution will be far longer than abandoned mine slag and the flyash that is called as grey rubbish to environment damage, so the content of waste polyethylene rises in the material, the content decline of useless nickel sand can make material lighten, cost reduces; And can help the protection of environment, the further expansion of the economic benefit that can get and social benefit more.

5) auxiliary agent in the middle of the material component only adopts three kinds of anti-aging agent, used oil and rosin or coumarones; The various performance index of material have been guaranteed with the simple common composition that is easy to get; Proportioning is convenient, and the simplification that meanwhile will inevitably bring technology and program simplifies the operation; The convenient use is beneficial to and produces and use very much.

Embodiment

Instance 1

A kind of regenerated composite material of making walling crib, well lid that is applicable to, its each component and weight percent are: waste polyethylene 62%, useless nickel sand 33%, anti-aging agent 2%, rosin 2%, used oil 1%.

Use the technical process of its preparation walling crib, well lid to be: under whipped state, to add in the stir mixing machine successively said components by weight percentage; After mixing under the high speed that PM 1170 changes; Compound is together joined in the screw rod degassing extruder; Under 230 ℃ high temperature, carry out mixed smelting, make compound form thick matrix material after, under refrigerative situation not, from the screw rod degassing extruder, be sent in the middle of the mould that designs; Use the high pressure compacted under of pressing machine matched moulds then, at last with obtaining required walling crib and well lid after the water cycle cooling at 315t.

Instance 2

A kind of regenerated composite material of making walling crib, well lid that is applicable to, its each component and weight percent are: waste polyethylene 61%, useless nickel sand 31%, anti-aging agent 3%, rosin 3%, used oil 2%.

The technical process of its preparation walling crib, well lid is said with instance 1.

Instance 3

A kind of regenerated composite material of making walling crib, well lid that is applicable to, its each component and weight percent are: waste polyethylene 62%, useless nickel sand 33%, anti-aging agent 2%, coumarone 2%, used oil 1%.

Instance 4

A kind of regenerated composite material of making walling crib, well lid that is applicable to, its each component and weight percent are: waste polyethylene 61%, useless nickel sand 31%, coumarone 3%, rosin 3%, used oil 2%.

Instance 5

Like instance 1 to instance 4 walling crib and the well lid processed of any one said proportioning wherein; All meet the CJ/T121-2000 standard of country about the regenerating resin manhole cover made of composite material; And supporting capacity all reached the standard of heavy carrying grade, and the test item and the numerical value of its main performance index are as shown in the table:

Project	Performance index	Assay	Assay
				Ultimate compression strength, MPa	?≥30	35	Qualified
Folding strength, MPa	?≥14	18	Qualified
				Toughness, kJ/m ²	?≥95	96	Qualified
Freeze-thaw resistance ultimate compression strength rate of loss, %	?≤13	6	Qualified
				Thermal ageing folding strength rate of loss, %	?≤0.4	0.3	Qualified
Temper(ing) folding strength relative change rate, %	?≤3	2	Qualified
				Supporting capacity (allowing in the residual deformation scope), kN	>;=240 (heavy types)	260	Qualified

Claims

1. one kind is applicable to the regenerated composite material of making walling crib, well lid, it is characterized in that each component and the weight percent of said material are: waste polyethylene 60%-65%; Useless nickel sand 30%-35%; Anti-aging agent 1%-3%, rosin 1%-3%, used oil 1%-2%.

2. a kind of regenerated composite material of making walling crib, well lid that is applicable to as claimed in claim 1 is characterized in that each component and the weight percent of said material are: waste polyethylene particle 62%; Useless nickel sand 33%; Anti-aging agent 2%, rosin 2%, used oil 1%.

3. according to claim 1 or claim 2 a kind of is applicable to the regenerated composite material of making walling crib, well lid, it is characterized in that, replaces described rosin with the coumarone of same composition.