CN118079853A - Gas adsorption material for vacuum insulation panel and preparation process thereof - Google Patents
Gas adsorption material for vacuum insulation panel and preparation process thereof Download PDFInfo
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- CN118079853A CN118079853A CN202410488574.1A CN202410488574A CN118079853A CN 118079853 A CN118079853 A CN 118079853A CN 202410488574 A CN202410488574 A CN 202410488574A CN 118079853 A CN118079853 A CN 118079853A
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- 239000000463 material Substances 0.000 title claims abstract description 33
- 238000009413 insulation Methods 0.000 title claims abstract description 29
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000000843 powder Substances 0.000 claims abstract description 148
- 238000003860 storage Methods 0.000 claims abstract description 54
- 238000003756 stirring Methods 0.000 claims abstract description 48
- 239000007789 gas Substances 0.000 claims abstract description 45
- 239000011261 inert gas Substances 0.000 claims abstract description 27
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 20
- 239000000956 alloy Substances 0.000 claims abstract description 20
- 239000002274 desiccant Substances 0.000 claims abstract description 20
- 238000002347 injection Methods 0.000 claims abstract description 17
- 239000007924 injection Substances 0.000 claims abstract description 17
- 238000005096 rolling process Methods 0.000 claims abstract description 7
- 230000009467 reduction Effects 0.000 claims description 17
- 229910000733 Li alloy Inorganic materials 0.000 claims description 12
- 239000001989 lithium alloy Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 229910000861 Mg alloy Inorganic materials 0.000 claims description 6
- WCULPSIYAQDUJW-UHFFFAOYSA-N [Li].[Sr] Chemical compound [Li].[Sr] WCULPSIYAQDUJW-UHFFFAOYSA-N 0.000 claims description 6
- YSZKOFNTXPLTCU-UHFFFAOYSA-N barium lithium Chemical compound [Li].[Ba] YSZKOFNTXPLTCU-UHFFFAOYSA-N 0.000 claims description 6
- IJBYNGRZBZDSDK-UHFFFAOYSA-N barium magnesium Chemical compound [Mg].[Ba] IJBYNGRZBZDSDK-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 238000004321 preservation Methods 0.000 claims description 6
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 claims description 6
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 claims description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- HUAUNKAZQWMVFY-UHFFFAOYSA-M sodium;oxocalcium;hydroxide Chemical compound [OH-].[Na+].[Ca]=O HUAUNKAZQWMVFY-UHFFFAOYSA-M 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 230000009471 action Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 239000012774 insulation material Substances 0.000 description 4
- 238000011049 filling Methods 0.000 description 3
- 239000011358 absorbing material Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/40—Mixers with shaking, oscillating, or vibrating mechanisms with an axially oscillating rotary stirrer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/10—Maintenance of mixers
- B01F35/12—Maintenance of mixers using mechanical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/75—Discharge mechanisms
- B01F35/754—Discharge mechanisms characterised by the means for discharging the components from the mixer
- B01F35/75455—Discharge mechanisms characterised by the means for discharging the components from the mixer using a rotary discharge means, e.g. a screw beneath the receptacle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
- B01J20/041—Oxides or hydroxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Separation Of Gases By Adsorption (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a gas adsorption material for a vacuum heat insulation plate and a preparation process thereof, and relates to the technical field of vacuum heat insulation plates, wherein the gas adsorption material for the vacuum heat insulation plate comprises a bag-shaped film, drying agent powder and alloy powder, the drying agent powder is 100-300 parts by weight, and the alloy powder is 50-150 parts by weight. According to the gas adsorption material for the vacuum insulation panel and the preparation process thereof, the air pump pumps air in the storage tank and simultaneously makes the disc perform circular rolling motion along the rugged lower surface of the wavy disc through the roller by utilizing the elastic action, so that the stirring shaft can perform up-and-down reciprocating motion while stirring and loosening on powder, the powder can be lifted up, sufficient space is generated between the powder, the air pump pumps air remained in the powder, and meanwhile, the powder at each part is fully contacted with the inert gas due to the fact that the powder is lifted up during inert gas injection, so that the protection effect is improved.
Description
Technical Field
The invention relates to the technical field of vacuum insulation panels, in particular to a gas adsorption material for a vacuum insulation panel and a preparation process thereof.
Background
The vacuum heat insulation plate is one of vacuum heat insulation materials, is formed by compounding a filling core material and a vacuum protection layer, and mainly comprises three components: the core heat insulation material, the gas barrier film and the gas absorption material can effectively avoid heat transfer caused by air convection, so that the heat conductivity coefficient can be greatly reduced, the heat insulation material has the characteristics of environmental protection and high efficiency and energy conservation, and is one of the most advanced high-efficiency heat insulation materials in the world at present.
The gas absorbing material in the existing vacuum insulated panel is an indispensable part of the vacuum insulated panel, and is used for absorbing redundant gas generated by permeation or material deflation, so that the inside of the vacuum insulated panel maintains a certain excellent vacuum degree, and as disclosed in patent application number 201110137835.8, the composite getter for maintaining medium and low vacuum environment and the preparation method thereof are disclosed, the composite getter mainly comprises various metal powders, and the powders are preserved by inert gas after reduction treatment so as to be used later;
The gas absorbing material similar to the above application and the method for preparing the same have the following drawbacks: the stack of powders layer upon layer when the powders are stored inside the canister causes easy air residues between the powders, and inert gases cannot reach the inside of the powders when injected, thus causing the inside powders not to be protected.
Accordingly, in view of the above, research and improvement on the existing structure and defects have been made, and a gas adsorbing material for a vacuum insulation panel and a process for preparing the same have been proposed.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a gas adsorption material for a vacuum insulation panel and a preparation process thereof, and solves the problems in the prior art.
In order to achieve the above purpose, the invention is realized by the following technical scheme: the preparation process of the gas adsorption material for the vacuum insulation panel comprises the following operation steps:
step one: respectively carrying out reduction treatment on at least one of iron powder, nickel powder and copper powder in a hydrogen furnace, wherein the reduction treatment condition of the iron powder is heating to 500-700 ℃, the heat preservation is carried out for 45-120 minutes, the reduction treatment condition of the nickel powder and the copper powder is heating to 450-700 ℃, and the heat preservation is carried out for 60-120 minutes;
step two: putting the powder subjected to reduction treatment into an inner tank of an air sieve through a feed pipe, continuously pumping out the gas in a storage tank by an air pump in the material injection process, closing the feed pipe and starting a rotating motor after the powder injection amount reaches the standard, and driving a disc and a stirring shaft to rotate by the rotating motor through a first elastic telescopic rod, so that the powder in the inner tank of the air sieve is stirred and loosened by the stirring shaft, and the gas among the powder can be pumped out by the air pump;
Step three: the rollers on two sides of the surface of the circular disc do circular motion along the lower surface of the wavy circular plate while the circular disc rotates, and the rollers roll on the lower surface of the wavy circular plate all the time through the elasticity of the first elastic telescopic rod while moving, and the first elastic telescopic rod continuously stretches and contracts in the rolling process so that the stirring shaft reciprocates up and down while rotating in the air screen inner tank, and powder accumulated at the bottom is further loosened;
Step four: the gas is dispersed and pumped out by the air pump in the powder loosening process, the air pressure in the storage tank is observed through the air pressure meter, the air pump stops working after reaching the preset air pressure value, the inert gas injection pipe is started to inject the inert gas into the storage tank, so that the powder is stored, the inert gas is continuously stirred up and down by the stirring shaft in the input process, the inert gas is enabled to be in full contact with the powder, and the drier powder, the strontium lithium alloy powder, the barium lithium alloy powder and the barium magnesium alloy powder are stored in the same way;
Step five: opening an electronic valve at the bottom of the air screen inner tank to enable powder to be discharged from the bottom of the storage tank, quantitatively weighing desiccant powder and alloy powder, dividing the desiccant powder and the alloy powder into three layers, adding the three layers into a die, wherein the desiccant powder is positioned on an upper layer and a lower layer, the alloy powder is positioned on a middle layer, pressing the three layers of powder into a sheet-shaped body by the die, and sealing the sheet-shaped body into a bag-shaped film under the protection of inert gas, thereby obtaining the gas adsorption material for the vacuum heat insulation plate;
Step six: when the powder is discharged, the stirring shaft rotates and reciprocates up and down to loosen the powder and enable the powder to be discharged smoothly, the stirring shaft rotates and simultaneously the second elastic telescopic rod carries the side plate to rotate along with the stirring shaft, the upper part of the side surface of the side plate rotates along the outer side surface of the wavy ring, the side plate stretches continuously in rotation due to elasticity of the second elastic telescopic rod, and the rubber end is attached to the outer surface of the inner tank of the air sieve to continuously collide when rotating, so that the powder remained on the inner wall of the inner tank of the air sieve is shaken off.
The gas adsorption material for the vacuum insulation panel comprises a bag-shaped film, drying agent powder and alloy powder, wherein the drying agent powder is 100-300 parts by weight, and the alloy powder is 50-150 parts by weight;
Wherein the desiccant powder is at least one of alkaline earth metal oxide, soda lime, phosphorus pentoxide, chloride and bromide;
The alloy powder is at least one of iron powder, nickel powder and copper powder which are subjected to reduction treatment and have the particle size of 10-200 microns, and also comprises at least one of strontium lithium alloy powder, barium lithium alloy powder and barium magnesium alloy powder with the particle size of 50-500 microns.
Further, the storage equipment comprises a storage tank, wherein an air sieve inner tank is arranged in the storage tank, an air pressure gauge is arranged on one side of the top of the storage tank in a penetrating mode, a feeding pipe is arranged on the other side of the top of the storage tank in a penetrating mode, an air extracting pump is connected to the lower portion of the left side of the storage tank, and an inert gas injection pipe is connected to the upper portion of the right side of the storage tank.
Further, the bottom of the air screen inner tank is communicated with a discharge hole at the bottom of the storage tank through an electronic valve, and the surface of the air screen inner tank is of a microporous structure.
Further, the inner wall top of holding vessel is fixed with loose subassembly, loose subassembly includes wave plectane, first elastic expansion link and rotation motor, the inside of wave plectane is worn to be equipped with first elastic expansion link, and the top of first elastic expansion link is connected with rotation motor.
Further, the loosening component further comprises a disc and rollers, the disc is fixed at the bottom of the first elastic telescopic rod, and the rollers are arranged on two sides of the upper surface of the disc.
Further, the loosening assembly further comprises a stirring shaft, and the bottom of the disc is fixedly provided with the stirring shaft.
Further, the top of gyro wheel contacts with the bottom of wave plectane, and gyro wheel, disc, (mixing) shaft constitute elastic structure through first elasticity telescopic link and wave plectane.
Further, the bottom both sides of disc are fixed with the air sieve mediation subassembly, the air sieve mediation subassembly includes second elasticity telescopic link, side board and rubber end, the tip of second elasticity telescopic link is fixed with the side board, and the medial surface equidistance of side board distributes there is the rubber end, the tip of rubber end is laminated with the outer wall of air sieve inner tank mutually.
Further, the top of the outer wall of the air screen inner tank is fixed with a wave ring, and the upper part of the inner side surface of the side panel is attached to the outer wall of the wave ring.
The invention provides a gas adsorption material for a vacuum insulation panel and a preparation process thereof, and the gas adsorption material has the following beneficial effects:
1. According to the gas adsorption material for the vacuum insulation panel and the preparation process thereof, the air pump continuously pumps out the gas in the storage tank and simultaneously utilizes the elastic action of the first elastic telescopic rod, so that the disc performs circular rolling motion along the rugged lower surface of the wavy disc through the roller, the stirring shaft can stir and loosen the powder and simultaneously reciprocate up and down, the powder can be lifted, sufficient space is generated between the powder, the air pump pumps out the gas remained in the powder, and meanwhile, the powder at each part is fully contacted with the inert gas due to the fact that the powder is lifted during inert gas injection, so that the protection effect is improved.
2. According to the gas adsorption material for the vacuum insulation panel and the preparation process thereof, when powder is discharged, the electronic valve at the bottom of the inner tank of the air screen enables the powder to be discharged from the bottom of the storage tank, and meanwhile, the stirring shaft rotates and reciprocates up and down to loosen the powder so as to enable the powder to be discharged smoothly, so that the situation that the bottom of the powder is accumulated and agglomerated to block a discharge hole is avoided.
3. According to the gas adsorption material for the vacuum insulation panel and the preparation process of the gas adsorption material, when powder is discharged, the stirring shaft rotates, the second elastic telescopic rod carries the side plate to rotate along with the stirring shaft, the upper part of the side surface of the side plate rotates along the outer side surface of the wavy ring, the side plate stretches continuously in rotation due to elasticity of the second elastic telescopic rod, the rubber end is attached to the outer surface of the inner tank of the air sieve, and the rubber end is impacted continuously while rotating, so that residual powder on the inner wall of the inner tank of the air sieve is shaken off, and the powder is prevented from remaining in the inner tank of the air sieve.
Drawings
FIG. 1 is a schematic view of the external perspective structure of a storage tank according to the present invention;
FIG. 2 is a schematic perspective view of the inner tank of the air screen of the present invention;
FIG. 3 is a schematic top perspective view of the wavy circular plate of the invention;
FIG. 4 is a schematic view of the bottom perspective of the wavy circular plate of the invention;
Fig. 5 is a schematic view of the top structure of the inner wall of the storage tank according to the present invention.
In the figure: 1. a storage tank; 2. an air screen inner tank; 3. an air pressure gauge; 4. a feed pipe; 5. an air extracting pump; 6. an inert gas injection tube; 7. a loosening assembly; 701. a wavy circular plate; 702. a first elastic telescopic rod; 703. a rotating motor; 704. a disc; 705. a roller; 706. a stirring shaft; 8. an air screen dredging assembly; 801. a second elastic telescopic rod; 802. a side panel; 803. a rubber end; 9. a wave ring.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the invention but are not intended to limit the scope of the invention.
As shown in fig. 1 to 5, the present invention provides the following technical solutions: the preparation process of the gas adsorption material for the vacuum insulation panel comprises the following operation steps:
step one: respectively carrying out reduction treatment on at least one of iron powder, nickel powder and copper powder in a hydrogen furnace, wherein the reduction treatment condition of the iron powder is heating to 500-700 ℃, the heat preservation is carried out for 45-120 minutes, the reduction treatment condition of the nickel powder and the copper powder is heating to 450-700 ℃, and the heat preservation is carried out for 60-120 minutes;
Step two: the powder subjected to reduction treatment is put into the air screen inner tank 2 through the feed pipe 4, the air pump 5 continuously pumps out the air in the storage tank 1 in the process of material injection, after the powder injection amount reaches the standard, the feed pipe 4 is closed, the rotating motor 703 is started, the rotating motor 703 drives the disc 704 and the stirring shaft 706 to rotate through the first elastic telescopic rod 702, and therefore the stirring shaft 706 stirs and loosens the powder in the air screen inner tank 2, and the air between the powder can be pumped out by the air pump 5;
step three: the rollers 705 on two sides of the surface of the circular disc 704 do circular motion along the lower surface of the wavy circular disc 701 while rotating, and the rollers 705 roll on the lower surface of the wavy circular disc 701 all the time through the elasticity of the first elastic telescopic rod 702 while moving, and the first elastic telescopic rod 702 continuously stretches and contracts in the rolling process so that the stirring shaft 706 moves up and down in a reciprocating manner while rotating the air screen inner tank 2, so that the powder accumulated at the bottom is further loosened;
Step four: the gas is dispersed and pumped out by the air pump 5 in the powder loosening process, the air pressure in the storage tank 1 is observed through the air pressure gauge 3, the air pump 5 stops working after reaching the preset air pressure value, the inert gas injection pipe 6 is started to inject the inert gas into the storage tank 1, so that the powder is stored, the stirring shaft 706 continuously stirs up and down in the inert gas input process, so that the inert gas is fully contacted with the powder, and the drier powder, the strontium lithium alloy powder, the barium lithium alloy powder and the barium magnesium alloy powder are stored in the same way;
step five: opening an electronic valve at the bottom of the air-sieve inner tank 2 so that powder is discharged from the bottom of the storage tank 1, thereby quantitatively weighing the desiccant powder and the alloy powder and dividing the desiccant powder and the alloy powder into three layers, adding the three layers into a mold, wherein the desiccant powder is positioned on an upper layer and a lower layer, the alloy powder is positioned on a middle layer, pressing the three layers into a sheet-shaped body by the mold, and sealing the sheet-shaped body into a bag-shaped film under the protection of inert gas, thereby obtaining the gas adsorption material for the vacuum insulation panel;
Step six: when the powder is discharged, the stirring shaft 706 rotates and reciprocates up and down to loosen the powder and discharge the powder smoothly, while the stirring shaft 706 rotates, the second elastic telescopic rod 801 carries the side plate 802 to rotate along with the rotation of the stirring shaft, the upper part of the side surface of the side plate 802 rotates along the outer side surface of the wavy ring 9, and the side plate 802 continuously stretches and contracts in the rotation due to the elasticity of the second elastic telescopic rod 801, so that the rubber end 803 continuously impacts when being attached to the outer surface of the air sieve inner tank 2, and the powder remained on the inner wall of the air sieve inner tank 2 is shaken off.
The gas adsorption material for the vacuum insulation panel comprises a bag-shaped film, drying agent powder and alloy powder, wherein the drying agent powder is 100-300 parts by weight, and the alloy powder is 50-150 parts by weight;
Wherein the desiccant powder is at least one of alkaline earth metal oxide, soda lime, phosphorus pentoxide, chloride and bromide;
The alloy powder is at least one of iron powder, nickel powder and copper powder which are subjected to reduction treatment and have the particle size of 10-200 microns, and also comprises at least one of strontium lithium alloy powder, barium lithium alloy powder and barium magnesium alloy powder with the particle size of 50-500 microns.
As shown in fig. 1 to 5, a storage device, which employs a process for preparing a gas adsorption material for a vacuum insulation panel, comprises a storage tank 1, wherein an air sieve inner tank 2 is arranged in the storage tank 1, an air gauge 3 is arranged on one side of the top of the storage tank 1 in a penetrating manner, a feeding pipe 4 is arranged on the other side of the top of the storage tank 1 in a penetrating manner, an air pump 5 is connected to the lower left side of the storage tank 1, an inert gas injection pipe 6 is connected to the upper right side of the storage tank 1, the bottom of the air sieve inner tank 2 is communicated with a discharge hole at the bottom of the storage tank 1 through an electronic valve, the surface of the air sieve inner tank 2 is in a microporous structure, a loosening component 7 is fixed on the top of the inner wall of the storage tank 1, the loosening assembly 7 comprises a wavy circular plate 701, a first elastic telescopic rod 702 and a rotating motor 703, the first elastic telescopic rod 702 is arranged in the wavy circular plate 701 in a penetrating manner, the top of the first elastic telescopic rod 702 is connected with the rotating motor 703, the loosening assembly 7 further comprises a circular plate 704 and a roller 705, the bottom of the first elastic telescopic rod 702 is fixedly provided with the circular plate 704, rollers 705 are arranged on two sides of the upper surface of the circular plate 704, the loosening assembly 7 further comprises a stirring shaft 706, a stirring shaft 706 is fixedly arranged at the bottom of the circular plate 704, the top of the roller 705 is in contact with the bottom of the wavy circular plate 701, and the roller 705, the circular plate 704 and the stirring shaft 706 form an elastic structure with the wavy circular plate 701 through the first elastic telescopic rod 702;
The method comprises the specific operations that the surface of an air screen inner tank 2 is of a microporous structure, the aperture size is smaller than the diameter of powder, so that gas can pass through the aperture, the powder can only be stored in the air screen inner tank 2, the powder subjected to reduction treatment is thrown into the air screen inner tank 2 through a feed pipe 4, the gas in a storage tank 1 is continuously pumped out by an air pump 5 in the process of filling, after the powder filling amount reaches the standard, the feed pipe 4 is closed and a rotating motor 703 is started, the rotating motor 703 drives a disc 704 and a stirring shaft 706 to rotate through a first elastic telescopic rod 702, the stirring shaft 706 stirs and loosens the powder in the air screen inner tank 2, rollers 705 on two sides of the surface of the disc 704 do circular motion along the lower surface of a wavy disc 701 while the disc 704 rotates, the rollers 705 roll along the lower surface of the wavy disc 701 all the time through elasticity of the first elastic telescopic rod 702, and the stirring shaft 706 is continuously telescopic in the rolling process, so that the stirring shaft 706 is lifted up and down in a reciprocating manner while rotating in the air screen inner tank 2, and the powder accumulated at the bottom is further loosened;
Based on the above description, the powder is stored in the air-sieve inner tank 2 after the quantitative injection, and the air pump 5 continuously pumps the air in the storage tank 1 and simultaneously utilizes the elastic action of the first elastic telescopic rod 702, so that the disc 704 performs circular rolling motion along the rugged lower surface of the wavy circular plate 701 through the roller 705, so that the stirring shaft 706 stirs and loosens the powder and can reciprocate up and down, the powder is lifted, sufficient space is generated between the powder, the air pump 5 pumps the air remained in the powder, and meanwhile, the powder at each part is fully contacted with the inert gas due to the lifting of the powder during the inert gas injection, so that the protection effect is improved.
As shown in fig. 1-5, air screen dredging assemblies 8 are fixed on two sides of the bottom of a disc 704, each air screen dredging assembly 8 comprises a second elastic telescopic rod 801, a side plate 802 and a rubber end 803, the end of each second elastic telescopic rod 801 is fixed with the corresponding side plate 802, the rubber ends 803 are distributed on the inner side surface of each side plate 802 at equal intervals, the end of each rubber end 803 is attached to the outer wall of an air screen inner tank 2, a wavy ring 9 is fixed on the top of the outer wall of the air screen inner tank 2, and the upper part of the inner side surface of each side plate 802 is attached to the outer wall of the wavy ring 9;
the operation is as follows, when powder is discharged, the electronic valve at the bottom of the air-sieve inner tank 2 is used for discharging powder from the bottom of the storage tank 1, meanwhile, the stirring shaft 706 is rotated and is lifted up and down in a reciprocating manner to loosen the powder so as to ensure that the powder is discharged smoothly, so that the situation that the powder bottom is accumulated and agglomerated to block a discharge hole is avoided, the stirring shaft 706 rotates, the second elastic telescopic rod 801 carries the side plate 802 to rotate along with the side plate 802, the upper part of the side plate 802 rotates along the outer side surface of the wave ring 9, the side plate 802 stretches continuously in the rotation through the elasticity of the second elastic telescopic rod 801, the rubber end 803 is impacted continuously while being attached to the outer surface of the air-sieve inner tank 2, and therefore the powder remained on the inner wall of the air-sieve inner tank 2 is shaken off, and the powder is prevented from remaining inside the air-sieve inner tank 2.
The embodiments of the invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (10)
1. The preparation process of the gas adsorption material for the vacuum insulation panel is characterized by comprising the following steps of: the preparation process of the gas adsorption material for the vacuum insulation panel comprises the following operation steps:
step one: respectively carrying out reduction treatment on at least one of iron powder, nickel powder and copper powder in a hydrogen furnace, wherein the reduction treatment condition of the iron powder is heating to 500-700 ℃, the heat preservation is carried out for 45-120 minutes, the reduction treatment condition of the nickel powder and the copper powder is heating to 450-700 ℃, and the heat preservation is carried out for 60-120 minutes;
step two: the powder subjected to reduction treatment is put into an air screen inner tank (2) through a feed pipe (4), an air pump (5) continuously pumps out air in a storage tank (1) in the process of material injection, after the powder injection amount reaches the standard, the feed pipe (4) is closed and a rotating motor (703) is started, the rotating motor (703) drives a disc (704) and a stirring shaft (706) to rotate through a first elastic telescopic rod (702), and therefore the stirring shaft (706) stirs and loosens the powder in the air screen inner tank (2), so that air among the powder can be pumped out by the air pump (5);
Step three: the rollers (705) on two sides of the surface of the circular disc (704) do circular motion along the lower surface of the wavy circular disc (701) while rotating, the rollers (705) roll on the lower surface of the wavy circular disc (701) all the time through elasticity of the first elastic telescopic rod (702) while moving, and the first elastic telescopic rod (702) continuously stretches and contracts in the rolling process so that the stirring shaft (706) moves up and down in a reciprocating manner while rotating the air screen inner tank (2), and powder accumulated at the bottom is further loosened;
Step four: the gas is dispersed and pumped out by the air pump (5) in the powder loosening process, the air pressure in the storage tank (1) is observed through the air pressure gauge (3), the air pump (5) stops working after reaching a preset air pressure value, the inert gas injection pipe (6) is started to inject inert gas into the storage tank (1), so that the powder is stored, and the stirring shaft (706) continuously stirs up and down in the input process of the inert gas, so that the inert gas is fully contacted with the powder, and the drier powder, the strontium lithium alloy powder, the barium lithium alloy powder and the barium magnesium alloy powder are stored in the same way;
Step five: opening an electronic valve at the bottom of an air screen inner tank (2) so that powder is discharged from the bottom of a storage tank (1), quantitatively weighing desiccant powder and alloy powder and dividing the desiccant powder and the alloy powder into three layers, adding the three layers into a die, wherein the desiccant powder is positioned on an upper layer and a lower layer, the alloy powder is positioned on a middle layer, pressing the three layers into a sheet-shaped body by the die, and sealing the sheet-shaped body into a bag-shaped film under the protection of inert gas, thereby obtaining the gas adsorption material for the vacuum insulation panel;
Step six: when the powder is discharged, the stirring shaft (706) rotates and reciprocates up and down to loosen the powder and enable the powder to be discharged smoothly, the second elastic telescopic rod (801) carries the side plate (802) to rotate along with the rotation of the stirring shaft (706), the upper part of the side surface of the side plate (802) rotates along the outer side surface of the wavy ring (9), the side plate (802) stretches continuously in the rotation through the elasticity of the second elastic telescopic rod (801), and the rubber end (803) is attached to the outer surface of the inner air sieve tank (2) to be impacted continuously while rotating, so that the powder remained on the inner wall of the inner air sieve tank (2) is shaken off.
2. A gas adsorption material for a vacuum insulation panel, prepared by using the preparation process of the gas adsorption material for the vacuum insulation panel according to claim 1, wherein: the gas adsorption material for the vacuum insulation panel comprises a bag-shaped film, drying agent powder and alloy powder, wherein the drying agent powder is 100-300 parts by weight, and the alloy powder is 50-150 parts by weight;
Wherein the desiccant powder is at least one of alkaline earth metal oxide, soda lime, phosphorus pentoxide, chloride and bromide;
The alloy powder is at least one of iron powder, nickel powder and copper powder which are subjected to reduction treatment and have the particle size of 10-200 microns, and also comprises at least one of strontium lithium alloy powder, barium lithium alloy powder and barium magnesium alloy powder with the particle size of 50-500 microns.
3. A storage apparatus, to which the process for preparing a gas adsorbing material for a vacuum insulation panel according to claim 1 is applied, characterized in that: the storage device comprises a storage tank (1), wherein an air sieve inner tank (2) is arranged in the storage tank (1), an air pressure gauge (3) is arranged on one side of the top of the storage tank (1) in a penetrating mode, a feeding pipe (4) is arranged on the other side of the top of the storage tank (1) in a penetrating mode, an air suction pump (5) is connected to the lower portion of the left side of the storage tank (1), and an inert gas injection pipe (6) is connected to the upper portion of the right side of the storage tank (1).
4. A storage device according to claim 3, wherein: the bottom of the air screen inner tank (2) is communicated with a discharge hole at the bottom of the storage tank (1) through an electronic valve, and the surface of the air screen inner tank (2) is of a microporous structure.
5. A storage device according to claim 3, wherein: the utility model discloses a loose subassembly (7) is fixed with at inner wall top of holding vessel (1), loose subassembly (7) are including wave plectane (701), first elastic expansion pole (702) and rotation motor (703), first elastic expansion pole (702) are worn to be equipped with in the inside of wave plectane (701), and the top of first elastic expansion pole (702) is connected with rotation motor (703).
6. A storage device according to claim 5, wherein: the loosening assembly (7) further comprises a disc (704) and rollers (705), the disc (704) is fixed at the bottom of the first elastic telescopic rod (702), and the rollers (705) are arranged on two sides of the upper surface of the disc (704).
7. A storage device according to claim 6, wherein: the loosening assembly (7) further comprises a stirring shaft (706), and the stirring shaft (706) is fixed to the bottom of the disc (704).
8. A storage device according to claim 7, wherein: the top of gyro wheel (705) is contacted with the bottom of wave plectane (701), and gyro wheel (705), disc (704), (706) constitute elastic structure through first elasticity telescopic link (702) and wave plectane (701).
9. A storage device according to claim 6, wherein: the utility model discloses a gas sieve dredging device, including disc (704), bottom both sides of disc (704) are fixed with gas sieve dredging device (8), gas sieve dredging device (8) are including second elasticity telescopic link (801), side board (802) and rubber end (803), the tip of second elasticity telescopic link (801) is fixed with side board (802), and the medial surface equidistance of side board (802) distributes has rubber end (803), the tip of rubber end (803) is laminated with the outer wall of gas sieve inner tank (2) mutually.
10. A storage device according to claim 9, wherein: the top of the outer wall of the air screen inner tank (2) is fixed with a wave ring (9), and the upper part of the inner side surface of the side panel (802) is attached to the outer wall of the wave ring (9).
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