CN103836306A - Glass fiber ultra-low temperature thermal insulation material production technology - Google Patents
Glass fiber ultra-low temperature thermal insulation material production technology Download PDFInfo
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- CN103836306A CN103836306A CN201410106090.2A CN201410106090A CN103836306A CN 103836306 A CN103836306 A CN 103836306A CN 201410106090 A CN201410106090 A CN 201410106090A CN 103836306 A CN103836306 A CN 103836306A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
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Abstract
The invention aims at providing a glass fiber ultra-low temperature thermal insulation material production technology. Glass fiber cotton is used as a raw material, the self strength and a scientific ratio of the glass fiber cotton are used, a softening and reinforcing agent is added, the technological processes of disintegrating, pulping, defibering, cutting and the like are performed, strict metering is performed, sufficient stirring and scattering are performed, dehydration and forming are performed through wet processing, drying, reeling, rewinding, slitting and combining are performed, and a glass fiber ultra-low temperature thermal insulation material is obtained. The glass fiber ultra-low temperature thermal insulation material is low in product quantification, extremely good in thermal insulation effect and good in breathability and is a novel thermal insulation material of which the corresponding thickness and the corresponding strength can meet requirements.
Description
Technical field
The present invention relates to thermal-protective material field, specifically a kind of glass fibre ultralow temperature thermal-protective material production technology.
Background technique
Ultralow temperature thermal-protective material need in use and quantitatively lower aluminium foil or nonwovens after MULTILAYER COMPOSITE, by specification requirement.Do imaging by the same thermal insulation layer, be wrapped on the storage facilities of liquid gas, according to the principle of insulation, identical material is under identical thickness, and the layer of thermal insulating material is more, and the effect of insulation is better; But identical thickness, thermal insulating material quantitatively will be lower, the intensity of thermal insulating material also can decline along with quantitative decline.
Summary of the invention
The object of the invention is to provide one quantitatively very low, the splendid and good permeability of heat insulation effect, the new thermal insulating material that its corresponding thickness and intensity can meet the demands, glass fibre ultralow temperature thermal-protective material.
The production method of glass fibre ultralow temperature thermal-protective material of the present invention is take glass fibre cotton as raw material, utilize the intensity of himself and the proportioning of science, add softening intensifier, through size degradation, the process treating such as pull an oar, discongest, prescind after, through strict metering, stir fully, disperse, utilize wet processing dehydration, moulding, again drying, batch, rewinding, cut, compound after, just obtained glass fibre ultralow temperature thermal-protective material.
Concrete production technology and process are as follows:
The 1st step: add water, plain boiled water, glass fibre cotton, fiber softening strengthening agent and sulfuric acid in stainless steel high-concentration pulper, the pH value of solution is adjusted into 3.5, concentration in extraction chamber is 1%-3%, open extraction chamber, stir 2 minutes, extraction chamber is stopped, after 3 minutes, opening again extraction chamber, continue making beating 15 minutes.
The 2nd step: metering: by the fiber stuff of accomplishing fluently, with being pumped in the measuring tank of 10m3, add cloudy water, reach the liquid level of regulation.
The 3rd step: the dispersion of fiber: the above-mentioned slurries that measure are put into special stock tank, and open turbine formula stirrer, stirred after 3-20 minute, in the special machine chest of pumping people.
The 4th step: current stabilization: the slurry in machine chest is sent in special current stabilization case with pump, in stream case, 90% slurries flow to breast box by the outlet of current stabilization case, remainingly gets back in machine chest by flow-off.
The 5th step: online, dehydration, moulding: control flow from the slurries sent here in current stabilization case well by discharging valve, enter in diaphragm type flow box.Slurries in flow box spray from labial lamina, after former, drainage foil, more further dewater with suction felt box, complete once sizing at wet end, and the mass dryness fraction of page has just reached the requirement of twice sizing, and the moisture that page enters oven dry portion has dropped to below 80%.
The 6th step: the transmission of page and oven dry: oven dry portion has adopted link joint type transmission, the mode of liquefied gas tank Two stage dryer, separately, the heat of firing chamber is transported to drying room with blower fan for the firing chamber of baking oven and drying room.In the bottom of baking oven, exhausting, air interchanger are installed.
The 7th step: batch: adopted cylinder formula to lean against synchronously and batched, gone out the material (paper) of baking oven by spring blow roll, can complete with less tension force.
The 8th step: rewinding: adopt four roller rewinders of autonomous Design to carry out rewinding.
The 9th step: cut: adopt the straight knife type cutting machine of autonomous Design to cut.
The 10th step: compound: adopt ten roller complex machines of autonomous Design to carry out compound.
As preferably, above-mentioned the 1st step: the plain boiled water of saying is the water that wet end former filters down;
Glass fibre cotton and softening intensifier: refer to that intensity is higher, but length of staple and beating degree have the alkali-free glass fibre cotton of certain difference, and the proportioning of alkali-free glass fibre cotton fiber is adjusted: fiber diameter 0.38 is to 0.95UM the alkali-free glass fibre cotton 60% of length of staple 1.0 to 1.6MM scopes; Fiber diameter 0.8 is to 2UM, the alkali-free glass fibre cotton 40% of length of staple 1.5 to 2.6MM scopes; Fiber reinforcement flexibility agent, adding quantity is fiber 20%, take sulfuric acid as medium, pH value 3 to 3.5;
Size degradation, making beating adopt free shape high consistency beating mode, adopt the making beating mode of this science and the softening reinforcing aids of above-mentioned rational raw material proportioning and interpolation, adding forming part, dry end after improvement, is the key that improves ultralow temperature thermal-protective material intensity and air permeability index.
As preferably, the special stock tank that above-mentioned the 3rd step is said: be the octagon stock tank of autonomous Design.
As preferably, online, dehydration, moulding that above-mentioned the 5th step is said: from the slurries of sending here in current stabilization case by the very high valve controlling flow amount of precision, enter in improved diaphragm type flow box, in flow box, configure the high glass epoxy of precision, device after improvement has been brought into play key effect to the flowing of slurries, dispersion and interfibrous arrangement, before the repacking of online concentration ratio, is doubled.In the outlet of flow box, homemade former has been installed, the uniformity after wet sheet forming increases substantially.The drainage foil that layer of fibers is developed through oneself again further dewaters, use again suction felt box strengthen dewatering, l Water Paper page is after wet end is once shaped like this, the mass dryness fraction of page has just reached the requirement of twice sizing, the moisture that page enters dry end has dropped to below 80%, and therefore dry, the wet strength of paper are all enhanced.What become paper quantitatively can accomplish that every square metre below 12 grams, can reach 8 grams every square metre according to client's demand is minimum, has accomplished ultrathin type.
As preferably, transmission, the oven dry of the page that above-mentioned the 6th step is said: l Water Paper page enters before baking oven, in order to reduce page traction, pulling of causing in running, adopt open paper injection, and below page, the blow roll with guipure synchronous operation has been installed, page is held up, adopt less speed ratio simultaneously, the internal stress of page and combination force are increased, therefore retained to greatest extent original intensity after sheet forming.Owing to adopting open paper injection, l Water Paper page is not subject to the extruding of the equipment such as net, roller, and therefore the bulk of page improves, and porosity increases, and has guaranteed the high-air-permeability of paper.Oven dry portion has adopted link joint type transmission, the mode of liquefied gas tank Two stage dryer, and separately, the heat of firing chamber is transported to drying room with blower fan for the firing chamber of baking oven and drying room, and the temperature of drying room is controlled at 85 ℃ to 260 ℃.In the bottom of baking oven, exhausting, air interchanger are installed.In order to guarantee in use extraction gas speed faster of ultralow temperature thermal-protective material, on the carrier bar in baking oven, overlap a dry net of spiral, its objective is the bulk and the air permeability that increase paper, and avoided the fluctuation of page, the phenomenon such as wrinkling, damaged.
As preferably, rewinding that above-mentioned the 8th, 9,10 steps are said, cut, compound: be the special device of developing for glass fibre ultralow temperature thermal-protective material.
Its beneficial effect: technique of the present invention has realized the heat insulation new material of a kind of glass fibre ultralow temperature,
1. outward appearance is pure white, and quality softness, without impurity such as greasy dirt, dust, color dots;
2. fibrous structure is even, without defects such as shine, lumps, eyelets;
3. the quality of unit square area is little, lightweight, but bulk is higher;
4. thermal conductivity is low, good heat-insulation effect;
5. applied widely, can under the environment of-273 ~ 500 ℃, use, especially apply to the storage of the gases such as liquid nitrogen, liquid hydrogen, liquid helium and liquefied petroleum gas under cryogenic, the insulation of haulage device;
6. in use, vacuum pumping rate is fast, saves the operating time;
7. clean, the environmental protection of production process, without the discharge of the harmful matter such as sewage and dusty gas, noise is little.
specific implementation method:
The production method of glass fibre ultralow temperature thermal-protective material of the present invention is take glass fibre cotton as raw material, utilize the intensity of himself and the proportioning of science, add softening intensifier, through size degradation, the process treating such as pull an oar, discongest, prescind after, through strict metering, stir fully, disperse, utilize wet processing dehydration, moulding, again drying, batch, rewinding, cut, compound after, just obtained glass fibre ultralow temperature thermal-protective material.
Concrete production technology and process are as follows:
The 1st step: add water, plain boiled water, glass fibre cotton, fiber softening strengthening agent and sulfuric acid in stainless steel high-concentration pulper, the pH value of solution is adjusted into 3.5, concentration in extraction chamber is 1%-3%, open extraction chamber, stir 2 minutes, extraction chamber is stopped, after 3 minutes, opening again extraction chamber, continue making beating 15 minutes.
The 2nd step: metering: by the fiber stuff of accomplishing fluently, with being pumped in the measuring tank of 10m3, add cloudy water, reach the liquid level of regulation.
The 3rd step: the dispersion of fiber: the above-mentioned slurries that measure are put into special stock tank, and open turbine formula stirrer, stirred after 3-20 minute, in the special machine chest of pumping people.
The 4th step: current stabilization: the slurry in machine chest is sent in special current stabilization case with pump, in stream case, 90% slurries flow to breast box by the outlet of current stabilization case, remainingly gets back in machine chest by flow-off.
The 5th step: online, dehydration, moulding: control flow from the slurries sent here in current stabilization case well by discharging valve, enter in diaphragm type flow box.Slurries in flow box spray from labial lamina, after former, drainage foil, more further dewater with suction felt box, complete once sizing at wet end, and the mass dryness fraction of page has just reached the requirement of twice sizing, and the moisture that page enters oven dry portion has dropped to below 80%.
The 6th step: the transmission of page and oven dry: oven dry portion has adopted link joint type transmission, the mode of liquefied gas tank Two stage dryer, separately, the heat of firing chamber is transported to drying room with blower fan for the firing chamber of baking oven and drying room.In the bottom of baking oven, exhausting, air interchanger are installed.
The 7th step: batch: adopted cylinder formula to lean against synchronously and batched, gone out the material (paper) of baking oven by spring blow roll, can complete with less tension force.
The 8th step: rewinding: adopt four roller rewinders of autonomous Design to carry out rewinding.
The 9th step: cut: adopt the straight knife type cutting machine of autonomous Design to cut.
The 10th step: compound: adopt ten roller complex machines of autonomous Design to carry out compound.
As preferably, above-mentioned the 1st step: the plain boiled water of saying is the water that wet end former filters down;
Glass fibre cotton and softening intensifier: refer to that intensity is higher, but length of staple and beating degree have the alkali-free glass fibre cotton of certain difference, and the proportioning of alkali-free glass fibre cotton fiber is adjusted: fiber diameter 0.38 is to 0.95UM the alkali-free glass fibre cotton 60% of length of staple 1.0 to 1.6MM scopes; Fiber diameter 0.8 is to 2UM, the alkali-free glass fibre cotton 40% of length of staple 1.5 to 2.6MM scopes; Fiber reinforcement flexibility agent, adding quantity is fiber 20%, take sulfuric acid as medium, pH value 3 to 3.5;
Size degradation, making beating adopt free shape high consistency beating mode, adopt the making beating mode of this science and the softening reinforcing aids of above-mentioned rational raw material proportioning and interpolation, adding forming part, dry end after improvement, is the key that improves ultralow temperature thermal-protective material intensity and air permeability index.
As preferably, the special stock tank that above-mentioned the 3rd step is said: be the octagon stock tank of autonomous Design.
As preferably, online, dehydration, moulding that above-mentioned the 5th step is said: from the slurries of sending here in current stabilization case by the very high valve controlling flow amount of precision, enter in improved diaphragm type flow box, in flow box, configure the high glass epoxy of precision, device after improvement has been brought into play key effect to the flowing of slurries, dispersion and interfibrous arrangement, before the repacking of online concentration ratio, is doubled.In the outlet of flow box, homemade former has been installed, the uniformity after wet sheet forming increases substantially.The drainage foil that layer of fibers is developed through oneself again further dewaters, use again suction felt box strengthen dewatering, l Water Paper page is after wet end is once shaped like this, the mass dryness fraction of page has just reached the requirement of twice sizing, the moisture that page enters dry end has dropped to below 80%, and therefore dry, the wet strength of paper are all enhanced.What become paper quantitatively can accomplish that every square metre below 12 grams, can reach 8 grams every square metre according to client's demand is minimum, has accomplished ultrathin type.
As preferably, transmission, the oven dry of the page that above-mentioned the 6th step is said: l Water Paper page enters before baking oven, in order to reduce page traction, pulling of causing in running, adopt open paper injection, and below page, the blow roll with guipure synchronous operation has been installed, page is held up, adopt less speed ratio simultaneously, the internal stress of page and combination force are increased, therefore retained to greatest extent original intensity after sheet forming.Owing to adopting open paper injection, l Water Paper page is not subject to the extruding of the equipment such as net, roller, and therefore the bulk of page improves, and porosity increases, and has guaranteed the high-air-permeability of paper.Oven dry portion has adopted link joint type transmission, the mode of liquefied gas tank Two stage dryer, and separately, the heat of firing chamber is transported to drying room with blower fan for the firing chamber of baking oven and drying room, and the temperature of drying room is controlled at 85 ℃ to 260 ℃.In the bottom of baking oven, exhausting, air interchanger are installed.In order to guarantee in use extraction gas speed faster of ultralow temperature thermal-protective material, on the carrier bar in baking oven, overlap a dry net of spiral, its objective is the bulk and the air permeability that increase paper, and avoided the fluctuation of page, the phenomenon such as wrinkling, damaged.
As preferably, rewinding that above-mentioned the 8th, 9,10 steps are said, cut, compound: be the special device of developing for glass fibre ultralow temperature thermal-protective material.
The present invention can pass through existing techniques in realizing without the technical characteristics of describing, and does not repeat them here.Certainly, above-mentioned explanation is not limitation of the present invention, and the present invention is also not limited in above-mentioned giving an example.Variation, remodeling, interpolation or replacement that those skilled in the art make in essential scope of the present invention, also should belong to protection scope of the present invention.
Claims (5)
1. glass fibre ultralow temperature thermal-protective material production technology, is characterized in that: concrete production technology and process are as follows:
The 1st step: add water, plain boiled water, glass fibre cotton, fiber softening strengthening agent and sulfuric acid in stainless steel high-concentration pulper, the pH value of solution is adjusted into 3.5, concentration in extraction chamber is 1%-3%, open extraction chamber, stir 2 minutes, extraction chamber is stopped, after 3 minutes, opening again extraction chamber, continue making beating 15 minutes;
The 2nd step: metering: by the fiber stuff of accomplishing fluently, with being pumped in the measuring tank of 10m3, add cloudy water, reach the liquid level of regulation;
The 3rd step: the dispersion of fiber: the above-mentioned slurries that measure are put into special stock tank, and open turbine formula stirrer, stirred after 3-20 minute, in the special machine chest of pumping people;
The 4th step: current stabilization: the slurry in machine chest is sent in special current stabilization case with pump, in stream case, 90% slurries flow to breast box by the outlet of current stabilization case, remainingly gets back in machine chest by flow-off;
The 5th step: online, dehydration, moulding: control flow from the slurries sent here in current stabilization case well by discharging valve, enter in diaphragm type flow box; Slurries in flow box spray from labial lamina, after former, drainage foil, more further dewater with suction felt box, complete once sizing at wet end, and the mass dryness fraction of page has just reached the requirement of twice sizing, and the moisture that page enters oven dry portion has dropped to below 80%;
The 6th step: the transmission of page and oven dry: oven dry portion has adopted link joint type transmission, the mode of liquefied gas tank Two stage dryer, separately, the heat of firing chamber is transported to drying room with blower fan for the firing chamber of baking oven and drying room; In the bottom of baking oven, exhausting, air interchanger are installed;
The 7th step: batch: adopted cylinder formula to lean against synchronously and batched, gone out the material (paper) of baking oven by spring blow roll, can complete with less tension force;
The 8th step: rewinding: adopt four roller rewinders of autonomous Design to carry out rewinding;
The 9th step: cut: adopt the straight knife type cutting machine of autonomous Design to cut;
The 10th step: compound: adopt ten roller complex machines of autonomous Design to carry out compound.
2. glass fibre ultralow temperature thermal-protective material production technology according to claim 1, is characterized in that: as preferably, and above-mentioned the 1st step: the plain boiled water of saying is the water that wet end former filters down;
Glass fibre cotton and softening intensifier: refer to that intensity is higher, but length of staple and beating degree have the alkali-free glass fibre cotton of certain difference, and the proportioning of alkali-free glass fibre cotton fiber is adjusted: fiber diameter 0.38 is to 0.95UM the alkali-free glass fibre cotton 60% of length of staple 1.0 to 1.6MM scopes; Fiber diameter 0.8 is to 2UM, the alkali-free glass fibre cotton 40% of length of staple 1.5 to 2.6MM scopes; Fiber reinforcement flexibility agent, adding quantity is fiber 20%, take sulfuric acid as medium, pH value 3 to 3.5;
Size degradation, making beating adopt free shape high consistency beating mode, adopt the making beating mode of this science and the softening reinforcing aids of above-mentioned rational raw material proportioning and interpolation, adding forming part, dry end after improvement, is the key that improves ultralow temperature thermal-protective material intensity and air permeability index.
3. glass fibre ultralow temperature thermal-protective material production technology according to claim 1, is characterized in that: the special stock tank that above-mentioned the 3rd step is said: be the octagon stock tank of autonomous Design.
4. glass fibre ultralow temperature thermal-protective material production technology according to claim 1, it is characterized in that: online, dehydration, moulding that above-mentioned the 5th step is said: from the slurries of sending here in current stabilization case by the very high valve controlling flow amount of precision, enter in improved diaphragm type flow box, in flow box, configure the high glass epoxy of precision, device after improvement has been brought into play key effect to the flowing of slurries, dispersion and interfibrous arrangement, before the repacking of online concentration ratio, is doubled; In the outlet of flow box, homemade former has been installed, the uniformity after wet sheet forming increases substantially; The drainage foil that layer of fibers is developed through oneself again further dewaters, use again suction felt box strengthen dewatering, l Water Paper page is after wet end is once shaped like this, the mass dryness fraction of page has just reached the requirement of twice sizing, the moisture that page enters dry end has dropped to below 80%, and therefore dry, the wet strength of paper are all enhanced; What become paper quantitatively can accomplish that every square metre below 12 grams, can reach 8 grams every square metre according to client's demand is minimum, has accomplished ultrathin type.
5. glass fibre ultralow temperature thermal-protective material production technology according to claim 1, it is characterized in that: transmission, the oven dry of the page that above-mentioned the 6th step is said: l Water Paper page enters before baking oven, in order to reduce page traction, pulling of causing in running, adopt open paper injection, and below page, blow roll with guipure synchronous operation has been installed, page is held up, adopt less speed ratio simultaneously, the internal stress of page and combination force are increased, therefore retained to greatest extent original intensity after sheet forming; Owing to adopting open paper injection, l Water Paper page is not subject to the extruding of the equipment such as net, roller, and therefore the bulk of page improves, and porosity increases, and has guaranteed the high-air-permeability of paper; Oven dry portion has adopted link joint type transmission, the mode of liquefied gas tank Two stage dryer, and separately, the heat of firing chamber is transported to drying room with blower fan for the firing chamber of baking oven and drying room, and the temperature of drying room is controlled at 85 ℃ to 260 ℃; In the bottom of baking oven, exhausting, air interchanger are installed; In order to guarantee in use extraction gas speed faster of ultralow temperature thermal-protective material, on the carrier bar in baking oven, overlap a dry net of spiral, its objective is the bulk and the air permeability that increase paper, and avoided the fluctuation of page, the phenomenon such as wrinkling, damaged.
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| CN201410106090.2A CN103836306B (en) | 2014-03-21 | 2014-03-21 | Glass fibre ultralow temperature heat-barrier material production technology |
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| CN201410106090.2A CN103836306B (en) | 2014-03-21 | 2014-03-21 | Glass fibre ultralow temperature heat-barrier material production technology |
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| CN103836306B CN103836306B (en) | 2016-06-22 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111851117A (en) * | 2020-07-25 | 2020-10-30 | 启东金耀億华玻纤材料有限公司 | Production process of superfine glass fiber partition plate |
| CN113005638A (en) * | 2021-02-23 | 2021-06-22 | 重庆文理学院 | Heat-preservation sound-insulation glass microfiber cotton felt for aviation and preparation method thereof |
| CN113832763A (en) * | 2020-06-23 | 2021-12-24 | 南京玻璃纤维研究设计院有限公司 | Production equipment, production system and production process of glass fiber composite filter material |
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| WO2007041821A1 (en) * | 2005-10-07 | 2007-04-19 | Graham Clifford Garner | Vacuum heat insulator, and refrigerator, car, and building using vacuum heat insulator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113832763A (en) * | 2020-06-23 | 2021-12-24 | 南京玻璃纤维研究设计院有限公司 | Production equipment, production system and production process of glass fiber composite filter material |
| CN111851117A (en) * | 2020-07-25 | 2020-10-30 | 启东金耀億华玻纤材料有限公司 | Production process of superfine glass fiber partition plate |
| CN113005638A (en) * | 2021-02-23 | 2021-06-22 | 重庆文理学院 | Heat-preservation sound-insulation glass microfiber cotton felt for aviation and preparation method thereof |
| CN113005638B (en) * | 2021-02-23 | 2022-04-22 | 重庆文理学院 | Heat-preservation sound-insulation glass microfiber cotton felt for aviation and preparation method thereof |
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| CN103836306B (en) | 2016-06-22 |
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Effective date of registration: 20190528 Address after: 066500 Guangchashan Village, Qinglong Town, Qinglong Manchu Autonomous County, Qinhuangdao City, Hebei Province Patentee after: Qinhuangdao Qinglong Hengli Glass Fiber Co., Ltd. Address before: 252122 Fengtun Industrial Park, Maping County, Liaocheng City, Shandong Province Patentee before: Shandong Zhanteng Energy-saving New Material Science and Technology Co., Ltd. |
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