CN101049714A - Method for fabricating well cover by using worn-out agricultural film - Google Patents
Method for fabricating well cover by using worn-out agricultural film Download PDFInfo
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- CN101049714A CN101049714A CN 200710011199 CN200710011199A CN101049714A CN 101049714 A CN101049714 A CN 101049714A CN 200710011199 CN200710011199 CN 200710011199 CN 200710011199 A CN200710011199 A CN 200710011199A CN 101049714 A CN101049714 A CN 101049714A
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Abstract
A technology for making the cover of manhole with used and rejected agricultural film includes such steps as proportionally mixing said used and rejected agricultural film with powdered coal ash, heating while stirring, banburying, and hot die pressing.
Description
Technical field
The invention belongs to a kind of processing and treating method of waste or used plastics, particularly a kind of method of making well lid of worn-out agricultural film.
Background technology
Many inspection shafts are arranged on the road in city,, all be coated with well lid on the well head of these inspection shafts as upper and lower water inspection shaft, combustion gas inspection shaft, heating power inspection shaft, fire-fighting inspection shaft, power check well, communication line inspection shaft or the like.At present, the manhole cover on the road in China city is all cylinder iron made.The advantage of castiron well cover is that bearing capacity is strong, the requirement of the heavy manhole cover carrying 240KN of the regulation that can be up to state standards fully, and shortcoming is the material cost height, consume a large amount of metal materials, also will expend a large amount of energy in process of production.Also get rusty easily in actual use, and stolen phenomenon of losing often take place, in case and well lid is lost, not only national wealth is suffered a loss, and some foreign material are entered in the well, results in blockage, the safety of also serious simultaneously danger side of body pedestrian and vehicle.
In order to solve castiron well cover production cost height and stolen problem of losing, people begin to adopt fiberglass or regenerating resin composite to produce manhole cover.Glass fibre reinforced plastic manhole covers generally is that to adopt medium-alkali glass fibre or alkali-free glass fibre and goods thereof be reinforcing material, is that matrix is processed into by the common die moulding process with the mold pressing resin.This glass fibre reinforced plastic manhole covers is compared with casting iron well lid, not only has advantages such as in light weight, corrosion-resistant, convenient formation, energy savings, and no family uses and industry regeneration is worth, and has fundamentally solved stolen this social concern of losing of well lid.But, because the material therefor price is higher, caused increasing of well lid production cost, to compare with casting iron well lid, this glass fibre reinforced plastic manhole covers is not cheap.And the impact resistance of glass fibre reinforced plastic manhole covers is relatively poor, and intensity is lower; the requirement of regulation is difficult to be up to state standards; rolling repeatedly down of motor vehicle, especially bogie, fracture usually can take place and damage phenomenon, can't substitute casting iron well lid in actual use.
The regenerating resin composite drain cover is that the reworked material with waste woven bag, food bag is a matrix, is reinforcing material with flyash, and is compound through stirring, fusing is extruded down at 250～260 ℃, processes such as compression molding make.The Main Ingredients and Appearance of waste woven bag, food bag reworked material is polyethylene and polypropylene, wherein, comprises polyethylene from high pressure process and low-pressure polyethylene in the polyethylene.That this regenerating resin composite drain cover has equally is in light weight, corrosion-resistant, convenient formation, no family uses and advantage such as industry regeneration value, and, solved the regeneration problem of waste woven bag, food bag.For this reason, nation-building portion has formulated CJ/T 121-2000 " regenerating resin manhole cover made of composite material " technical standard specially.But owing to the hardness and the fragility of polypropylene in woven bag, the food bag reworked material and low-pressure polyethylene are bigger, toughness is relatively poor, thereby, the strength ratio of regenerating resin composite drain cover is lower, fracture easily in the use, its bearing capacity only is 80～150KN, the load bearing requirements of light-duty and general type in can only being up to state standards.And, because the temperature during heat fused is higher, destroyed the regenerating resin performance of composites, thereby, the requirement of regulation that is difficult to be up to state standards of its bearing capacity, can the be up to state standards requirement of heavy manhole cover carrying 240KN of regulation of the regenerating resin composite drain cover that at present domestic none tame enterprise still produces, its product can only be used on the road that bicycles such as greenery patches, path, cycle track or pavement travel, and can not be used on urban road and the highway.
Summary of the invention
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art, solve the problem that nonmetal manhole cover impact resistance is poor, bearing capacity is low, a kind of method of making well lid with worn-out agricultural film is provided, satisfy the instructions for use of urban road and highway.
The present invention is a raw material with worn-out agricultural film and flyash, and its concrete method is:
1, the worn-out agricultural film of getting 28～50% weight ratios mixes with the flyash of 50～72% weight ratios, with worn-out agricultural film and flyash agitating heating, heating-up temperature is 100～200 ℃, and the time is 30～60 minutes, worn-out agricultural film and flyash are mixed, and make the worn-out agricultural film partial melting;
2, the mixture of worn-out agricultural film and flyash was joined in the internal mixer close white silk 10～20 minutes, in the time of close white silk it is heated, heating-up temperature is 200～240 ℃, and worn-out agricultural film is melted fully, and its close white silk is become the compound that combines together with flyash;
3, after being weighed, puts in the mould compound of close worn-out agricultural film of perfecting and flyash;
4, use the forcing press matched moulds, with compound compression moulding under the pressure of 1500～5000KN of worn-out agricultural film and flyash, pressurize 30～60 minutes, then, opening mold takes out well lid and gets final product.
Waste mulching film or the waste and old canopy film of described worn-out agricultural film for abandoning after using, its Main Ingredients and Appearance is a polyethylene from high pressure process.
Described waste mulching film or waste and old canopy film are crude fragment or graininess, strip-shaped materials through processing.
The invention has the advantages that:
1, adopting Main Ingredients and Appearance is that the worn-out agricultural film of polyethylene from high pressure process is as matrix, because the good toughness of polyethylene from high pressure process, thereby, the shock resistance of well lid is good, bulk strength increases substantially, adopt lower temperature that worn-out agricultural film is carried out heat fused simultaneously, avoided the polyethylene from high pressure process volatilization rotten, and in the process of fusing, carry out close white silk with flyash, flyash is combined together as reinforcing material and worn-out agricultural film, the density of well lid is increased, weight increases, bearing capacity further improves, the well lid bearing capacity of 600 mm dias has reached 360～440KN, the well lid bearing capacity of 700 mm dias has reached 280～400KN, has substantially exceeded the requirement of the heavy manhole cover carrying 240KN that stipulates in the national standard, can be used on the urban road and highway that load-carrying vehicle travels.
2, adopt worn-out agricultural film and flyash raw material as well lid, worn-out agricultural film and flyash contaminated environment, reluctant problem had both been solved, turn waste into wealth again, simultaneously, because the well lid that worn-out agricultural film and flyash are made does not have family to use and industry regeneration is worth, thereby, also solved the stolen problem of losing of well lid.
The specific embodiment
Embodiment 1:
1.1, get 28kg waste mulching film fragment and mix with 72kg flyash, the Main Ingredients and Appearance of waste mulching film fragment is a polyethylene from high pressure process, the granularity of flyash is more than 80 orders, meet the requirement of GB GB/T1596, with waste mulching film fragment and flyash agitating heating, heating-up temperature is 100 ℃, and the time is 30 minutes, waste mulching film fragment and flyash are mixed, and make waste mulching film fragment partial melting;
1.2, the mixture of waste mulching film fragment and flyash was joined in the internal mixer close white silk 15 minutes, in the time of close white silk it is heated, heating-up temperature is 200 ℃, and the waste mulching film fragment is melted fully, and its close white silk is become the compound that combines together with flyash;
1.3, put in the mould after the compound of close waste mulching film fragment of perfecting and flyash weighed;
1.4, use the forcing press matched moulds, with compound compression moulding under the pressure of 5000KN of waste mulching film fragment and flyash, pressurize 30 minutes, then, opening mold takes out well lid and gets final product.
Embodiment 2:
2.1, get the waste and old canopy membrane granule of 50kg shape material and mix with 50kg flyash, the Main Ingredients and Appearance of waste and old canopy membrane granule shape material is a polyethylene from high pressure process, the granularity of flyash is more than 80 orders, meet the requirement of GB GB/T1596, with waste and old canopy membrane granule shape material and flyash agitating heating, heating-up temperature is 200 ℃, and the time is 50 minutes, waste and old canopy membrane granule shape material and flyash are mixed, and make waste and old canopy membrane granule shape material partial melting;
2.2, the mixture of waste and old canopy membrane granule shape material and flyash was joined in the internal mixer close white silk 20 minutes, in the time of close white silk it is heated, heating-up temperature is 240 ℃, waste and old canopy membrane granule shape material is melted fully, and its close white silk is become the compound that combines together with flyash;
2.3, put in the mould after the compound of close waste and old canopy membrane granule shape material of perfecting and flyash weighed;
2.4, use the forcing press matched moulds, with compound compression moulding under the pressure of 1500KN of waste and old canopy membrane granule shape material and flyash, pressurize 50 minutes, then, opening mold takes out well lid and gets final product.
Embodiment 3:
3.1, get the waste and old canopy film of 40kg strip-shaped materials and mix with 60kg flyash, the Main Ingredients and Appearance of waste and old canopy film strip-shaped materials is a polyethylene from high pressure process, the granularity of flyash is more than 80 orders, meet the requirement of GB GB/T1596, with waste and old canopy film strip-shaped materials and flyash agitating heating, heating-up temperature is 150 ℃, and the time is 60 minutes, waste and old canopy film strip-shaped materials and flyash are mixed, and make waste and old canopy film strip-shaped materials partial melting;
3.2, the mixture of waste and old canopy film strip-shaped materials and flyash was joined in the internal mixer close white silk 10 minutes, in the time of close white silk it is heated, heating-up temperature is 220 ℃, waste and old canopy film strip-shaped materials is melted fully, and its close white silk is become the compound that combines together with flyash;
3.3, put in the mould after the compound of close waste and old canopy film strip-shaped materials of perfecting and flyash weighed;
3.4, use the forcing press matched moulds, with compound compression moulding under the pressure of 3500KN of waste and old canopy film strip-shaped materials and flyash, pressurize 60 minutes, then, opening mold takes out well lid and gets final product.
Embodiment 4:
4.1, get 35kg waste mulching film granular material and mix with 65kg flyash, the Main Ingredients and Appearance of waste mulching film granular material is a polyethylene from high pressure process, the granularity of flyash is more than 80 orders, meet the requirement of GB GB/T1596, with waste mulching film granular material and flyash agitating heating, heating-up temperature is 175 ℃, and the time is 40 minutes, waste mulching film granular material and flyash are mixed, and make waste mulching film granular material partial melting;
4.2, the mixture of waste mulching film granular material and flyash was joined in the internal mixer close white silk 15 minutes, in the time of close white silk it is heated, heating-up temperature is 230 ℃, and the waste mulching film granular material is melted fully, and its close white silk is become the compound that combines together with flyash;
4.3, put in the mould after the compound of close waste mulching film granular material of perfecting and flyash weighed;
4.4, use the forcing press matched moulds, with compound compression moulding under the pressure of 4000KN of waste mulching film granular material and flyash, pressurize 40 minutes, then, opening mold takes out well lid and gets final product.
Claims (3)
1, a kind of method of making well lid with worn-out agricultural film is a raw material with worn-out agricultural film and flyash, it is characterized in that, it is to make according to following method:
(1) worn-out agricultural film of getting 28～50% weight ratios mixes with the flyash of 50～72% weight ratios, with worn-out agricultural film and flyash agitating heating, heating-up temperature is 100～200 ℃, and the time is 30～60 minutes, worn-out agricultural film and flyash are mixed, and make the worn-out agricultural film partial melting;
(2) mixture of worn-out agricultural film and flyash was joined in the internal mixer close white silk 10～20 minutes, in the time of close white silk it is heated, heating-up temperature is 200～240 ℃, and worn-out agricultural film is melted fully, and its close white silk is become the compound that combines together with flyash;
(3) after being weighed, puts in the mould compound of close worn-out agricultural film of perfecting and flyash;
(4) use the forcing press matched moulds, with compound compression moulding under the pressure of 1500～5000KN of worn-out agricultural film and flyash, pressurize 30～60 minutes, then, opening mold takes out well lid and gets final product.
2, method of making well lid with worn-out agricultural film according to claim 1 is characterized in that, waste mulching film or the waste and old canopy film of described worn-out agricultural film for abandoning after using, and its Main Ingredients and Appearance is a polyethylene from high pressure process.
3, method of making well lid with worn-out agricultural film according to claim 2 is characterized in that, described waste mulching film or waste and old canopy film are crude fragment or graininess, strip-shaped materials through processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710011199 CN101049714A (en) | 2007-04-28 | 2007-04-28 | Method for fabricating well cover by using worn-out agricultural film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710011199 CN101049714A (en) | 2007-04-28 | 2007-04-28 | Method for fabricating well cover by using worn-out agricultural film |
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| CN101049714A true CN101049714A (en) | 2007-10-10 |
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| CN 200710011199 Pending CN101049714A (en) | 2007-04-28 | 2007-04-28 | Method for fabricating well cover by using worn-out agricultural film |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103524852A (en) * | 2013-10-14 | 2014-01-22 | 天津瑞和塑料制品有限公司 | Silicon-plastic well lid prepared from waste polyethylene and preparation process of silicon-plastic well lid |
| CN104031307A (en) * | 2014-06-03 | 2014-09-10 | 天津市德诚信建材有限公司 | Composite resin well lid |
| CN104710808A (en) * | 2015-04-10 | 2015-06-17 | 民勤县家兴节能服务有限公司 | Method for processing municipal manhole cover from waste mulching films |
| CN106188790A (en) * | 2016-08-30 | 2016-12-07 | 民勤县威瑞环保有限责任公司 | A kind of waste mulching film toughening modifying method |
| CN106243766A (en) * | 2016-08-25 | 2016-12-21 | 吕致平 | A kind of novel glass fiber combined manhole cover and preparation method thereof |
| CN109096536A (en) * | 2018-08-27 | 2018-12-28 | 安徽大来机械制造有限公司 | A kind of preparation method preparing combined manhole cover using waste mulching film and waste nickel sand |
| CN113696365A (en) * | 2021-05-15 | 2021-11-26 | 吴家谅 | Method for manufacturing well cover grate by using cutting piece waste and phenolic resin |
| CN115368749A (en) * | 2022-08-02 | 2022-11-22 | 再森木环保科技(武汉)有限公司 | Method for manufacturing mineral plastic composite section by using waste agricultural film |
-
2007
- 2007-04-28 CN CN 200710011199 patent/CN101049714A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103524852A (en) * | 2013-10-14 | 2014-01-22 | 天津瑞和塑料制品有限公司 | Silicon-plastic well lid prepared from waste polyethylene and preparation process of silicon-plastic well lid |
| CN103524852B (en) * | 2013-10-14 | 2016-08-10 | 天津瑞和塑料制品有限公司 | A kind of silicon plastic well lid utilizing waste polyethylene to prepare and preparation technology thereof |
| CN104031307A (en) * | 2014-06-03 | 2014-09-10 | 天津市德诚信建材有限公司 | Composite resin well lid |
| CN104710808A (en) * | 2015-04-10 | 2015-06-17 | 民勤县家兴节能服务有限公司 | Method for processing municipal manhole cover from waste mulching films |
| CN106243766A (en) * | 2016-08-25 | 2016-12-21 | 吕致平 | A kind of novel glass fiber combined manhole cover and preparation method thereof |
| CN106188790A (en) * | 2016-08-30 | 2016-12-07 | 民勤县威瑞环保有限责任公司 | A kind of waste mulching film toughening modifying method |
| CN109096536A (en) * | 2018-08-27 | 2018-12-28 | 安徽大来机械制造有限公司 | A kind of preparation method preparing combined manhole cover using waste mulching film and waste nickel sand |
| CN113696365A (en) * | 2021-05-15 | 2021-11-26 | 吴家谅 | Method for manufacturing well cover grate by using cutting piece waste and phenolic resin |
| CN115368749A (en) * | 2022-08-02 | 2022-11-22 | 再森木环保科技(武汉)有限公司 | Method for manufacturing mineral plastic composite section by using waste agricultural film |
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Open date: 20071010 |