NL2030947B1 - Production method for ultrafine ceramic fiber cotton thermal insulation sleeve for heat transfer pipeline - Google Patents
Production method for ultrafine ceramic fiber cotton thermal insulation sleeve for heat transfer pipeline Download PDFInfo
- Publication number
- NL2030947B1 NL2030947B1 NL2030947A NL2030947A NL2030947B1 NL 2030947 B1 NL2030947 B1 NL 2030947B1 NL 2030947 A NL2030947 A NL 2030947A NL 2030947 A NL2030947 A NL 2030947A NL 2030947 B1 NL2030947 B1 NL 2030947B1
- Authority
- NL
- Netherlands
- Prior art keywords
- water
- thermal insulation
- ceramic fiber
- fiber cotton
- industrial starch
- Prior art date
Links
- 229920000742 Cotton Polymers 0.000 title claims abstract description 35
- 239000000835 fiber Substances 0.000 title claims abstract description 35
- 239000000919 ceramic Substances 0.000 title claims abstract description 33
- 238000009413 insulation Methods 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000012546 transfer Methods 0.000 title claims abstract description 15
- 229920002472 Starch Polymers 0.000 claims abstract description 46
- 235000019698 starch Nutrition 0.000 claims abstract description 46
- 239000008107 starch Substances 0.000 claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 238000001035 drying Methods 0.000 claims abstract description 20
- 238000010009 beating Methods 0.000 claims abstract description 15
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims abstract description 14
- XYRAEZLPSATLHH-UHFFFAOYSA-N trisodium methoxy(trioxido)silane Chemical compound [Na+].[Na+].[Na+].CO[Si]([O-])([O-])[O-] XYRAEZLPSATLHH-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 13
- 239000002893 slag Substances 0.000 claims description 5
- 238000007514 turning Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 230000001502 supplementing effect Effects 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims 6
- 238000005119 centrifugation Methods 0.000 claims 2
- 239000012467 final product Substances 0.000 claims 1
- 239000002002 slurry Substances 0.000 abstract description 15
- 239000002994 raw material Substances 0.000 abstract description 9
- 238000000465 moulding Methods 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract description 5
- 239000010425 asbestos Substances 0.000 abstract description 2
- 239000011490 mineral wool Substances 0.000 abstract description 2
- 229910052895 riebeckite Inorganic materials 0.000 abstract description 2
- 239000011230 binding agent Substances 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 230000002940 repellent Effects 0.000 abstract 1
- 239000005871 repellent Substances 0.000 abstract 1
- 241000219146 Gossypium Species 0.000 description 28
- 239000011268 mixed slurry Substances 0.000 description 14
- 239000012774 insulation material Substances 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 230000004224 protection Effects 0.000 description 5
- 244000137852 Petrea volubilis Species 0.000 description 4
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 239000000306 component Substances 0.000 description 4
- 230000000332 continued effect Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 208000028659 discharge Diseases 0.000 description 4
- 238000000967 suction filtration Methods 0.000 description 3
- 238000010924 continuous production Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000002844 continuous effect Effects 0.000 description 1
- 239000007799 cork Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- LFQCEHFDDXELDD-UHFFFAOYSA-N tetramethyl orthosilicate Chemical compound CO[Si](OC)(OC)OC LFQCEHFDDXELDD-UHFFFAOYSA-N 0.000 description 1
- 239000010455 vermiculite Substances 0.000 description 1
- 229910052902 vermiculite Inorganic materials 0.000 description 1
- 235000019354 vermiculite Nutrition 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/56—Compositions suited for fabrication of pipes, e.g. by centrifugal casting, or for coating concrete pipes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Thermal Insulation (AREA)
- Paper (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
Abstract
The invention discloses a production method for an ultrafine ceramic fiber cotton thermal insulation sleeve for a heat transfer pipeline. The production method for the ultrafine ceramic fiber cotton thermal insulation sleeve for the heat transfer pipeline includes: slurry curing, beating and deslagging, centrifuging for pipe molding, and microwave drying. By such a method, ultrafine ceramic fiber cotton, silica sol, industrial starch, and sodium methyl silicate which are used as raw materials do not contain asbestos, mineral wool and other substances that are harmful to human body, which ensures the safety during production and construction. The silica sol is used as a binder; the sodium methyl silicate is used as a water repellent, which ensures good moisture resistance and durability. According to the obtained ultrafine ceramic fiber cotton thermal insulation sleeve, an implementation process for thermal insulation of an outer layer of the heat transfer pipeline is simplified.
Description
P1154 /NLpd
PRCDUCTION METHOD FOR ULTRAFINE CERAMIC FIBER COTTON THERMAL
INSULATION SLEEVE FOR HEAT TRANSFER PIPELINE
The present invention relates to the technical field of heat transfer, more specifically to a production method for an ul- trafine ceramic fiber cotton thermal insulation sleeve for a heat transfer pipeline.
Most of thermal insulation materials of early heat transfer pipelines are natural minerals and natural resource raw materials, such as asbestos, diatomite, cork, straw ropes, and sawdust, etc.
In addition, glass wool, slag wool, perlite, vermiculite, etc. are used as thermal insulation materials. Most of thermal insulation structures of these thermal insulation materials are smeared, filled, bundled, and masonry. Procedures are complicated, and it is not easy to achieve automatic continuous production. At the same time, these thermal insulation materials used at the present have poor durability, especially poor hydrophobicity and high wa- ter absorption rate, easily causing corrosion of thermal insula- tion pipelines.
Therefore, how to solve the deficiencies in the performance and production of the thermal insulation material of the existing heat transfer pipeline has become an important key technical prob- lem to be solved by those skilled in the art.
The present invention aims to provide a production method for an ultrafine ceramic fiber cotton thermal insulation sleeve for a heat transfer pipeline, which solves the deficiencies in perfor- mance of a thermal insulation material of an existing heat trans- fer pipeline and the problems of high production cost and failure of continuous production.
The objective of the present invention is achieved through the following technical solutions:
In a production method for an ultrafine ceramic fiber cotton thermal insulation sleeve for a heat transfer pipeline, ultrafine ceramic fiber cotton, industrial starch, silica sol, and sodium methyl silicate are used as main raw materials, and production steps include slurry curing, beating and deslagging, centrifuging for pipe molding, and microwave drying.
Preferably, the ultrafine ceramic fiber cotton raw material is a fiber with aluminum silicate serving as a main chemical com- ponent; the fiber has a diameter of 1.5-3 um and a length of 2-5 mm; the industrial starch is ordinary commonly used industrial starch with a starch content more than or equal to 90%; the purity of the silica sol is more than or equal to 90%; and the purity of the sodium methyl silicate is more than or equal to 95%.
Preferably, the slurry curing includes: mixing and stirring the industrial starch and water with a water temperature of 5-25°C according to a mass ratio of the industrial starch to the water of 1:2-1:3 at a stirring rate of 80-120 r/min for 5-10 min; after the industrial starch is uniformly dispersed, adding water with a tem- perature of 100°C according to a mass ratio of the industrial starch to the water of 1:10-1:12; and continuing to stir the mix- ture for 5-10 min to cure the industrial starch, thus obtaining cured slurry.
Preferably, the beating and deslagging includes: transferring the obtained cured slurry into a beating tank; supplementing water with a water temperature of 5-25°C according to a mass ratio of the industrial starch to water of 1:200-1:230; continuing to stir the mixture for 5-10 min; adding 75-85 parts of the ultrafine ceramic fiber cotton, 12-16 parts of the silica sol, and 1-2 parts of the sodium methyl silicate in sequence; after continuing to stir the mixture for 5 to 10 min, turning on a deslagging device to dis- charge slag balls, thus obtaining mixed slurry.
Preferably, the centrifuging for pipe melding includes: in- jJecting the obtained mixed slurry into a centrifuging drum, turn- ing on a transmission motor of the centrifuging drum to make a ro- tating speed of the centrifuging drum at 600-1000 r/min, perform-
ing centrifuging for 120-240 s, and then extruding a wet billet from the centrifuging drum.
Preferably, the drying for billet correction includes: trans- ferring the obtained wet billet into a microwave dryer for drying at a drying temperature of 105-110°C for 8-10 h to obtain a dried blank, and then grinding rough parts at the edge of the dried bil- let with sand paper to obtain an ultrafine ceramic fiber cotton thermal insulation sleeve finished product.
In the technical solution provided by the present invention, in the production method for the ultrafine ceramic fiber cotton thermal insulation sleeve for the heat transfer pipeline, ul- trafine ceramic fiber cotton, industrial starch, silica sol, and sodium methyl silicate are used as main raw materials, and produc- tion steps include slurry curing, beating and deslagging, centri- fuging for pipe molding, and microwave drying. In this way, con- tinuous full-automatic production is achieved. Referring to the detection standard Acid Cotton for Thermal Insulation and Product thereof GB/T16400-2015, the prepared ultrafine ceramic fiber cot- ton thermal insulation sleeve has a density of 165-186 kg/m’, a hydrophobicity of 99.2%-99.4%, a water absorption per volume of 2.1-2.3%, and a heat conduction coefficient (an average tempera- ture is 70°C or below) of 0.38-0.05 W/(m-K).
In order to make the purposes, technical solutions and ad- vantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is apparent that the described embodiments are a part of the embodi- ments of the present invention, not all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present in- vention.
This specific implementation mode aims to provide a produc- tion method for an ultrafine ceramic fiber cotton thermal insula- tion sleeve for a heat transfer pipeline, ultrafine ceramic fiber cotton, industrial starch, silica sol, and sodium methyl silicate are used as main raw materials, and production steps include slur- ry curing, beating and deslagging, centrifuging for pipe molding, and microwave drying. In this way, continuous full-automatic pro- duction is achieved. In this way, continuous full-automatic pro- duction is achieved. The embodiments are illustrated below. In ad- dition, the embodiments shown below do not limit the content of the invention described in the claims in any way. In addition, all the contents of the configuration shown in the following embodi- ments are not limited to necessarily serving as a solution to the invention described in the claims.
Embodiment 1
As an optional implementation mode, in a specific embodiment of the present invention, the ultrafine ceramic fiber cotton raw material is a fiber with aluminum silicate serving as a main chem- ical component; the fiber has a diameter of 1.5 um and a length of 2 mm; the industrial starch is ordinary commonly used industrial starch with a starch content of 90%; the purity of the silica sol is 90%; and the purity of the sodium methyl silicate is 95%.
As an optional implementation mode, in a specific embodiment of the present invention, the slurry curing includes: the indus- trial starch and water with a water temperature of 5°C are mixed and stirred according to a mass ratio of the industrial starch to water of 1:2 at a stirring rate of 120 r/min for 10 min; after the industrial starch is uniformly dispersed, water with a temperature of 100°C is added according to a mass ratio of the industrial starch to the water of 1:10; and the mixture is continued to be stirred for 10 min to cure the industrial starch, thus obtaining cured slurry.
As an optional implementation mode, in a specific embodiment of the present invention, the beating and deslagging includes: the obtained cured slurry is transferred into a beating tank; water with a water temperature of 5°C is added according to a mass ratio of the industrial starch to water of 1:200; the mixture is contin- ued to be stirred for 10 min; 75 parts of the ultrafine ceramic fiber cotton, 12 parts of the silica sol, and 1 part of the sodium methyl silicate are added in sequence; after the mixture is con-
tinued to be stirred for 10 min, a deslagging device is turned on to discharge slag balls, thus obtaining mixed slurry.
As an optional implementation mode, in a specific embodiment of the present invention, the centrifuging for pipe molding in- 5 cludes: the obtained mixed slurry is injected into a centrifuging drum; a forming mold is immersed into the mixed slurry; a vacuum valve is switched on for vacuum suction filtration at a vacuum de- gree of 0.2 MPa for 90 s; the forming mold is lifted out of the mixed slurry; the vacuum valve is then switched off; and a wet billet is taken out of the forming mold.
As an optional implementation mode, in a specific embodiment of the present invention, the drying for billet correction in- cludes: the obtained wet billet is firstly transferred into a mi- cro dryer for drying at a drying temperature of 105°C for 10 h to obtain a dried billet; rough parts at the edge of the dried billet are polished with sand paper to obtain an ultrafine ceramic fiber cotton thermal insulation sleeve finished product. Referring to the detection standard Acid Cotten for Thermal Insulation and
Product thereof GB/T16400-2015, the prepared ultrafine ceramic fi- ber cotton thermal insulation sleeve has a density of 165 kg/m’, a hydrophobicity of 99.4%, a water absorption per volume of 2.1%, and a heat conduction coefficient (an average temperature is 70°C or below) of 0.38 W/ (mK).
Embodiment 2
As an optional implementation mode, in a specific embodiment of the present invention, the ultrafine ceramic fiber cotton raw material is a fiber with aluminum silicate serving as a main chem- ical component; the fiber has a diameter of 2.0 um and a length of 3 mm; the industrial starch is commonly used industrial starch with a starch content of 95%; the purity of the silica sol is 95%; and the purity of the sodium methyl silicate is 95%.
As an optional implementation mode, in a specific embodiment of the present invention, the slurry curing includes: the indus- trial starch and water with a water temperature of 15°C are mixed and stirred according to a mass ratio of the industrial starch to water of 1:2.5 at a stirring rate of 100 r/min for 8 min; after the industrial starch is uniformly dispersed, water with a temper- ature of 100°C is added according to a mass ratio of the industrial starch to the water of 1:15; and the mixture is continued to be stirred for 8 min to cure the industrial starch, thus obtaining cured slurry.
As an optional implementation mode, in a specific embodiment of the present invention, the beating and deslagging includes: the obtained cured slurry is transferred into a beating tank; water with a water temperature of 15°C is added according to a mass ratio of the industrial starch to water of 1:220; the mixture is contin- ued to be stirred for 8 min; 80 parts of the ultrafine ceramic fi- ber cotton, 14 parts of the silica sol, and 1.5 parts of the sodi- um methyl silicate are added in sequence; after the mixture is continued to be stirred for 8 min, a deslagging device is turned on to discharge slag balls, thus obtaining mixed slurry.
As an optional implementation mode, in a specific embodiment of the present invention, the centrifuging for pipe molding in- cludes: the obtained mixed slurry is injected into a centrifuging drum; a forming mold is immersed into the mixed slurry; a vacuum valve is switched on for vacuum suction filtration at a vacuum de- gree of 0.1 MPa for 60 s; the forming mold is lifted out of the mixed slurry; the vacuum valve is then switched off; and a wet billet is taken out of the forming mold.
As an optional implementation mode, in a specific embodiment of the present invention, the drying for billet correction in- cludes: the obtained wet billet is firstly transferred into a mi- cro dryer for drying at a drying temperature of 110°C for 9 h to obtain a dried billet; rough parts at the edge of the dried billet are polished with sand paper to obtain an ultrafine ceramic fiber cotton thermal insulation sleeve finished product. Referring to the detection standard Acid Cotton for Thermal Insulation and
Product thereof GB/T16400-2015, the prepared ultrafine ceramic fi- ber cotton thermal insulation sleeve has a density of 175 kg/m’, a hydrophobicity of 99.3%, a water absorption per volume of 2.2%, and a heat conduction coefficient (an average temperature is 70°C or below) of 0.43 W/ (mK).
Embodiment 3
As an optional implementation mode, in a specific embodiment of the present invention, the ultrafine ceramic fiber cotton raw material is a fiber with aluminum silicate serving as a main chem- ical component; the fiber has a diameter of 3.0 um and a length of 5 mm; the industrial starch is ordinary industrial commonly used starch with a starch content of 98%; the purity of the silica sol is 98%; and the purity of the sodium methyl silicate is 98%.
As an optional implementation mode, in a specific embodiment of the present invention, the slurry curing includes: the indus- trial starch and water with a water temperature of 25°C are mixed and stirred according to a mass ratio of the industrial starch to water of 1:3 at a stirring rate of 80 r/min for 5 min; after the industrial starch is uniformly dispersed, water with a temperature of 100°C is added according to a mass ratio of the industrial starch to the water of 1:12; and the mixture is continued to be stirred for 5 min to cure the industrial starch, thus obtaining cured slurry.
As an optional implementation mode, in a specific embodiment of the present invention, the beating and deslagging includes: the obtained cured slurry is transferred into a beating tank; water with a water temperature of 25°C is added according to a mass ratio of the industrial starch to water of 1:230; the mixture is contin- ued to be stirred for 5 min; 85 parts of the ultrafine ceramic fi- ber cotton, 16 parts of the silica sol, and 2 parts of the sodium methyl silicate are added in sequence; after the mixture is con- tinued to be stirred for 5 min, a deslagging device is turned on to discharge slag balls, thus obtaining mixed slurry.
As an optional implementation mode, in a specific embodiment of the present invention, the centrifuging for pipe molding in- cludes: the obtained mixed slurry is injected into a centrifuging drum; a forming mold is immersed into the mixed slurry; a vacuum valve is switched on for vacuum suction filtration at a vacuum de- gree of 0 MPa for 30 s; the forming mold is lifted out of the mixed slurry; the vacuum valve is then switched off; and a wet billet is taken out of the forming mold.
As an optional implementation mode, in a specific embodiment of the present invention, the drying for billet correction in- cludes: the obtained wet billet is firstly transferred into a mi- cro dryer for drying at a drying temperature of 110°C for 8 h to obtain a dried billet; rough parts at the edge of the dried billet are polished with sand paper to obtain an ultrafine ceramic fiber cotton thermal insulation sleeve finished product. Referring to the detection standard Acid Cotton for Thermal Insulation and
Product thereof GB/T16400-2015, the prepared ultrafine ceramic fi- ber cotton thermal insulation sleeve has a density of 186 kg/m’, a hydrophobicity of 99.2%, a water absorption per volume of 2.3%, and a heat conduction coefficient (an average temperature is 70°C or below) of 0.05 W/ (mK).
The above descriptions are only specific implementation modes of the present invention, but the protection scope of the present invention is not limited to this. Any changes or replacements that can be easily conceived by those skilled in the art within the technical scope of the present invention shall all fall within the protection scope of the present invention. Therefore, the protec- tion scope of the present invention should be subject to the pro- tection scope of the claims.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL2030947A NL2030947B1 (en) | 2022-02-15 | 2022-02-15 | Production method for ultrafine ceramic fiber cotton thermal insulation sleeve for heat transfer pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL2030947A NL2030947B1 (en) | 2022-02-15 | 2022-02-15 | Production method for ultrafine ceramic fiber cotton thermal insulation sleeve for heat transfer pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL2030947B1 true NL2030947B1 (en) | 2023-08-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL2030947A NL2030947B1 (en) | 2022-02-15 | 2022-02-15 | Production method for ultrafine ceramic fiber cotton thermal insulation sleeve for heat transfer pipeline |
Country Status (1)
| Country | Link |
|---|---|
| NL (1) | NL2030947B1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111533582A (en) * | 2020-04-26 | 2020-08-14 | 上海伊索热能技术股份有限公司 | Preparation method for removing slag of ceramic fiber |
| CN111578043A (en) * | 2020-05-14 | 2020-08-25 | 唐山顺浩环保科技有限公司 | Open-close type heat insulation pipeline and preparation method thereof |
| CN111704397A (en) * | 2020-05-18 | 2020-09-25 | 唐山顺浩环保科技有限公司 | Fireproof material, fireproof door, preparation method and application |
| CN111546485B (en) * | 2020-05-14 | 2021-08-24 | 唐山顺浩环保科技有限公司 | Conical heat-insulating pipeline and preparation method thereof |
| CN113800801A (en) * | 2020-06-15 | 2021-12-17 | 唐山顺浩环保科技有限公司 | Ceramic fiber particle and preparation method and application thereof |
-
2022
- 2022-02-15 NL NL2030947A patent/NL2030947B1/en active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111533582A (en) * | 2020-04-26 | 2020-08-14 | 上海伊索热能技术股份有限公司 | Preparation method for removing slag of ceramic fiber |
| CN111578043A (en) * | 2020-05-14 | 2020-08-25 | 唐山顺浩环保科技有限公司 | Open-close type heat insulation pipeline and preparation method thereof |
| CN111546485B (en) * | 2020-05-14 | 2021-08-24 | 唐山顺浩环保科技有限公司 | Conical heat-insulating pipeline and preparation method thereof |
| CN111704397A (en) * | 2020-05-18 | 2020-09-25 | 唐山顺浩环保科技有限公司 | Fireproof material, fireproof door, preparation method and application |
| CN113800801A (en) * | 2020-06-15 | 2021-12-17 | 唐山顺浩环保科技有限公司 | Ceramic fiber particle and preparation method and application thereof |
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