CN201221214Y - Grain bin structure with polyurethane rigid foam as inner pasting layer - Google Patents
Grain bin structure with polyurethane rigid foam as inner pasting layer Download PDFInfo
- Publication number
- CN201221214Y CN201221214Y CNU2008201028220U CN200820102822U CN201221214Y CN 201221214 Y CN201221214 Y CN 201221214Y CN U2008201028220 U CNU2008201028220 U CN U2008201028220U CN 200820102822 U CN200820102822 U CN 200820102822U CN 201221214 Y CN201221214 Y CN 201221214Y
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- China
- Prior art keywords
- layer
- polyurethane foam
- rigid polyurethane
- silo
- heat
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/51—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture specially adapted for storing agricultural or horticultural products
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Abstract
The utility model discloses a granary structure with rigid polyurethane foam as internally adhibited layers, which relates to a granary structure. The granary structure is characterized in that the adhibited surfaces of a ground surface, an inner wall surface and an inner top surface are seamless rigid polyurethane foam layers. The granary structure has the following advantages: after the rigid polyurethane foam is foamed, the closed porosity is high, the coefficient of heat conductivity is low, heat-insulating and temperature-preserving effects are good, and therefore the rigid polyurethane foam can meet the requirement on the high heat-insulating and damp-insulating standards of the granary.
Description
Technical field:
The utility model relates to the silo structure, is specially adapted to heat insulation, the high-level silo of damp proof insulation.
Background technology:
The paddy non-refractory.The traditional method of China is to improve the warehouse-in paddy quality at present, the standard of control safe moisture, and general paddy is below 13%, and round-grained rice paddy is below 14%.If warehouse-in paddy moisture is big, how impurity just grades, and fraction is stored up or the measure of airing oven dry warehouse-in stores.In storage process, take in good time ventilation, cooling, precipitation again or utilize the cold dry weather in winter to ventilate, make the grain temperature be reduced to 10 ℃, but carrying out cover seal when spring temperature rises try to achieve safe production in summer." China Oil and Food Import and Export Corporation " regulation: paddy changed the storehouse in 2～3 years one.The paddy that stores up has experienced the spring rain aqueous vapor, and summer, scorching temperature was invaded, and expires to swap out rice quality to descend, and the quantity handled of have to doing to demote is many, and Jiang Ji rice quality is less bright unexcellent yet.
Testa Tritici is thin, and the structure pine is dredged wettability power and is subject to insect pest more by force.Wheat is put the insect growth breeding stage in summer just in storage, temperature height when wheat is put in storage, if chance is overcast and rainy, insect is very suitable to be bred, keep wheat quality can run into great difficulty, have only and be strictly on guard against that it is to guarantee the long bright key of peace for a long time of wheat quality that damp and hot air-flow contacts with the wheat of storage.
The original moisture of corn is big, and strength maturity factor is inhomogeneous, and embryo contains 30% above protein and more soluble sugar, becomes sour easily, adds that embryo portion content of molds goes mouldy greatly easily.Maize portion is nutritious, and the microbial adhesion amount is more, and after the moisture absorption of embryo portion, under preference temperature, a large amount of breedings of mould begin to go mouldy.At present, it is drying before the corn warehouse-in and measure such as cooling overcomes that China stores one of measure of corn, however " China Oil and Food Import and Export Corporation " regulation: changed the storehouse in 1～2 year one.Because heat, moisture infiltrates from Cang Ding, pad, ground, causes corn quality to descend in the corn storage process, and the fast result of ageing is audible constantly.
The soybean warehouse-in descends season on the occasion of temperature.But the most water funk gas cut is gone in the soybean storage process, and generation is gone rancid, red stain.Store at present in the soybean process in China, each warehouse all emphasizes to store soybean and extraneous wet, the isolated quality that just can guarantee to store soybean of temperature, and heat insulation, the waterproofing course of present 80% silo are not accomplished this requirement, store soybean and decortication immersion oil phenomenon occurs, " China Oil and Food Import and Export Corporation " regulation: changed the storehouse in 1～2 year one.
Above-mentioned in order to guarantee that stored grain quality and safety all have common a requirement: heat insulation, waterproof gas cut is gone into.And existing 85% warehouse of China all is conventional concrete constructions at present, and promptly ground, inwall, end face are all concrete structure.The facility effect of heat insulation, waterproofing course does not also meet effectively insulating, is strictly on guard against the requirement that aqueous vapor is invaded.So that it is frequent that the storehouse is changed in grain storage, institute's grain storage food ageing is fast, and quality is difficult to fresh-keeping.From social safety, set out in the national Changxing for a long time demand of peace, transforms existing silo, guarantees that the height that the long bright peace for a long time of grain storage has been mentioned strategic importance has been familiar with.
Summary of the invention:
The purpose of this utility model is to overcome above-mentioned defective, and the silo structure of a kind of hard polyurethane foam as interior paste layer is provided.
Scheme of the present utility model is: the stickup surface layer of the ground surface of silo, internal face, inner top surface is seamless rigid polyurethane alveolar layer.
Advantage of the present utility model is: after hard polyurethane foam sprayed to silo ground, inwall, inner top surface, realizes seamless adhered layer, every performance reached high standard, is specially:
Heat-proof quality: after hard polyurethane foam sprayed to the silo basal plane, rate of closed hole height during its foaming was when density is 35～40kg/m
3The time, coefficient of thermal conductivity only is 0.018～0.024W/ (mk), is that the coefficient of thermal conductivity at present domestic and international all heat-insulation and heat-preservation materials is minimum, its thermal property is superior; And the coefficient of thermal conductivity of polyphenyl plate is about 0.036W/ (mk), that is to say the warehouse body of wall, effect of heat insulation with polyurethane rigid foam material 30mm thickness, will be with polyphenyl plate at the thick effect of heat insulation that could realize polyurethane rigid foam material of 50～60mm, at present domestic refrigerator, freezer etc. are all used the hard polyurethane foam heat-insulation and heat-preservation.
Water resistance: low, the anti-water vapour permeability of the water absorption rate of hard-foam polyurethane is good, and the foam rate of closed hole reaches more than 95%, has blocked the body of wall accumulation of salt in the surface soil approach that capillary tube causes, so water absorption rate≤1%, and can to increase the coefficient of thermal conductivity water resistance unreliable because of the moisture absorption; It is not deposit objection that polystyrene thermal-insulating system anticorrisive agent water-based is worse than the hard polyurethane foam system, and year in and year out, moisture is invaded and lowered the isolation layer effect, and the inside evaporation of the moisture of intrusion also can cause in the storehouse gets damp.
Adhesive property: can and play the effect of sealed airspace with storehouse body of wall basic unit's strong bond during polyurethane foam, its adhesion strength surpasses the tensile strength of foams own, and the layer that hard bubbles is become one with wall base face, is difficult for taking place delamination; And polystyrene material and plinth course ftracture when adhesive mortar produces mainly by adhesive mortar, and water can infiltrate polystyrene layer, produce isolation layer inefficacy and infiltration warehouse-in.
Overall performance: the polyurethane coating method makes full use of the foaming process of material own makes body of wall and rigid polyurethane foam be bonded to a whole sheet material, the construction continuity is good, whole isolation layer does not have seam, the gas-tight silo that makes the silo top layer have globality to the body of wall root, and polystyrene material is pasted or the rendering layer shortage is closed the envelope globality.
Endurance quality: after adopting hard polyurethane foam to do silo top wall waterproof, heat-insulation integrative sealing storehouse, the consequence because of water intrusion or isolation layer inefficacy just can not occur, resistant polyurethane is aging, and chemical analysis is stable, there is spraying polyurethane to use abroad and surpasses 26 years, so far the record of system's operational excellence; And isolation layer very easily takes place and lost efficacy in polystyrene material after suffering water intrusion, and easy shrinkage strain when suffering high temperature destroys isolation layer and loses effect of heat insulation.If the adhesive mortar adhesive strength of using weakens, polyphenyl sheet material then can take place to come off, durability is more weak comparatively speaking.
Security against fire: hard polyurethane foam is met fire meeting carbonization, and adhesion strength descends to some extent, and the Polyurethane Rigid Foam Flame Retardance performance of our company's research and development has broken through national B2 level regulation, realizes the fire-retardant silo security against fire needs that are particularly suitable for of B1 level; Polystyrene material is met fire and can be dissolved, and produces the trickling phenomenon, pounds under the decorations layer is broken away from thereupon, causes the intensity of a fire to stretch.
Comprehensive cost is relatively: the many usefulness of hard polyurethane foam one material, and functions such as waterproof, heat insulation, insulation, bonding have both, and to the surface evenness no requirement (NR) of building basic unit, old silo transformation only need be cleared up basal plane oil dustiness matter and can be constructed, and comprehensive cost is low; Polystyrene material can only be made insulating usefulness, has planeness strict to the building basal plane, otherwise can't paste, need set up defences in addition water layer, leveling layer, Steam by water bath gas-bearing formation, ballast layer, comprehensive cost height.
Description of drawings:
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model preferred structure schematic diagram.
The specific embodiment:
Structure of the present utility model is: comprises ground, body of wall, roof all around, with seamless ground, inwall, the inner top surface of spraying to of polyurethane rigid foam material, comprises three's junction with spray gun,
Specifically, at first ground surface, internal face, inner top surface dust are removed, then additives such as polyalcohol, isocyanates liquid charging stock and blowing agent are pressed the technological design proportioning, mix the continuous seamless crack spraying of then implementing full inner surface.The sprayed coating general thickness is at 10～50mm, should allow the abundant slaking of sprayed coating 48～72 hours after the spraying.
Spray liquid hard polyurethane foam and be to realize seamless connection than the superiority of laying the solid-state polyurethane sheet of bonding, adhesive property is good, the slit of original basal plane can be filled in the spraying simultaneously.
After preferred layer structure is rigid polyurethane alveolar layer (1) slaking, be bonded with arlt's strata (2) again on its surface, outside fibrage, be equipped with cement sand bed.The purpose of laying cement mortar layer (3) is to protect foaming layer simultaneously also as decorative layer, and the bonding of arlt's strata (2) is fixing for the ease of wiping one's face of mortar layer.
Claims (3)
1, hard polyurethane foam is as the silo structure of interior paste layer, comprises ground, body of wall, roof all around, rises and is characterised in that the stickup face of ground surface, body of wall internal face, inner top surface is a seamless rigid polyurethane alveolar layer (1).
2, hard polyurethane foam according to claim 1 is as the silo structure of interior paste layer, and the thickness that it is characterized in that the rigid polyurethane alveolar layer is 10～50mm.
3, hard polyurethane foam according to claim 1 is characterized in that as the silo structure of interior paste layer rigid polyurethane alveolar layer (1) surface is the arlt's strata of pasting (2), and arlt's strata (2) skin is cement mortar layer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201028220U CN201221214Y (en) | 2008-06-27 | 2008-06-27 | Grain bin structure with polyurethane rigid foam as inner pasting layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201028220U CN201221214Y (en) | 2008-06-27 | 2008-06-27 | Grain bin structure with polyurethane rigid foam as inner pasting layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201221214Y true CN201221214Y (en) | 2009-04-15 |
Family
ID=40574724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201028220U Expired - Lifetime CN201221214Y (en) | 2008-06-27 | 2008-06-27 | Grain bin structure with polyurethane rigid foam as inner pasting layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201221214Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102860186A (en) * | 2012-09-28 | 2013-01-09 | 天津塘沽国家粮食储备库 | Energy-saving tall bungalow granary |
-
2008
- 2008-06-27 CN CNU2008201028220U patent/CN201221214Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102860186A (en) * | 2012-09-28 | 2013-01-09 | 天津塘沽国家粮食储备库 | Energy-saving tall bungalow granary |
| CN102860186B (en) * | 2012-09-28 | 2015-02-04 | 天津塘沽国家粮食储备库 | Energy-saving tall bungalow granary |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Gao Xiaoliang Document name: Notification to Pay the Fees |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090415 |
|
| CX01 | Expiry of patent term |