CN110757933A

CN110757933A - Production facility of compound aerogel self preservation temperature template

Info

Publication number: CN110757933A
Application number: CN201910839591.4A
Authority: CN
Inventors: 高永坡; 李瑞红
Original assignee: Hebei Jushengfeng Thermal Insulation Engineering Co Ltd
Current assignee: Hebei Jushengfeng Thermal Insulation Engineering Co Ltd
Priority date: 2019-09-06
Filing date: 2019-09-06
Publication date: 2020-02-07
Anticipated expiration: 2039-09-06
Also published as: CN110757933B

Abstract

The invention relates to production equipment of a composite aerogel self-insulation template, which comprises a reaction kettle, a plate making platform and a conveyor belt, wherein the reaction kettle at least comprises a kettle body with a shape limited by a hollow cylinder, and an accommodating space is limited by the kettle body; set up the roll extrusion portion in the cauldron body, put into accommodation space and make the first surface of aerogel substrate and the inside of the cauldron body support under the condition of contact, roll extrusion portion and exert the extrusion force that periodic existence is followed radially to the second surface relative with the first surface of the internal portion of cauldron to the aerogel substrate, make the initial volume in the inside hole of aerogel substrate reduce based on the existence of extrusion force, and under the extrusion force changed into the condition that does not exist by existence, the volume in hole increased to initial volume based on the self elasticity of aerogel substrate.

Description

Production facility of compound aerogel self preservation temperature template

Technical Field

The invention relates to the technical field of heat insulation plate manufacturing, in particular to production equipment for a composite aerogel self-insulation template.

Background

Aerogels, also known as xerogels. When most of the solvent is removed from the gel, the liquid content in the gel is much less than the solid content, or the space network structure of the gel is filled with gas, and the appearance is solid, namely xerogel, also called aerogel. Such as gelatin, gum arabic, silica gel, hair, nails, and the like. Aerogels also have the properties of gels, i.e., swelling, thixotropic, de-sizing.

The preparation of the aerogel comprises three stages: one is the preparation of wet gel: the wet gel is prepared by a sol-gel process, and nanoparticles dispersed in a liquid are agglomerated together during the reaction to form a continuous three-dimensional network throughout the solution. Secondly, aging of the wet gel: when the sol reaches the gel point, the silica polymer fills the entire sol-containing vessel. However, there are still many reactive groups on the silicon backbone in the gel that have not yet been reacted. The hydrolysis and condensation reactions may continue and, for a sufficient time, strengthen the silica network. Thirdly, drying the wet gel: drying is the last and most critical step in the aerogel production process, and capillary tension is a critical factor in the overall drying process. The most common drying methods include normal pressure drying and supercritical drying, the normal pressure drying method is simple and convenient in process, but the liquid capillary tension in the pores of the framework in the wet gel drying process can cause the gel to shrink or even crack in the drying process. The supercritical drying method is to discharge the liquid in the skeleton pores under the condition of the critical temperature and the critical pressure of the liquid, and to eliminate the tension of solvent capillary in the drying process, so that the ultra-low density aerogel can be prepared, but the process and the equipment are complex and the cost is high.

The aerogel thermal insulation board, also called composite thermal insulation board, is a flexible and high-efficiency thermal insulation material, takes nano-silica aerogel as a main material, and is compounded in inorganic fiber through a special process. The fine nano-mesh structure of the heat insulation material effectively reduces the solid heat conduction of the material, the abundant nano-mesh structure effectively inhibits the convection conduction of gas molecules, and the functional material absorbs and reflects heat radiation, so that the material has extremely low heat conductivity coefficient, and compared with the conventional common heat insulation material, the heat insulation effect can be improved by 2-10 times.

Aerogel insulation board heat insulation principle: when the diameter of the pores in the material is less than 50nm, the air molecules in the pores lose the free flow capacity and are relatively attached to the pore walls, which means that the material is in a nearly vacuum state. Meanwhile, the air holes in the material are nano-scale air holes, and the material has extremely low volume density, so that the material contains a great number of reflecting interfaces and scattering particles, and the heat insulation plate is modified in the aspect of heat radiation absorption, so that the aerogel heat insulation plate has a heat conductivity coefficient lower than that of static air at high temperature and normal temperature.

Traditional wall and roof insulation materials are divided into inorganic materials and organic materials, the organic insulation material polyphenyl foam board occupying 80% of the insulation material market has poor fireproof and flame-retardant properties, and most of inorganic insulation materials such as rock wool and glass wool have large density and poor insulation effect. Aerogel panels have low thermal conductivity, low density, and high flame retardancy, and are ideal insulating materials for walls and roofs.

In conclusion, the aerogel serving as a new solid material with a nano-porous structure has the excellent characteristics of being ultra-light, heat-insulating, transparent, fireproof and the like. The aerogel has great application value in the field of building energy conservation, and can remarkably improve the heat preservation effect and save energy. Along with the research extension and the application expansion in recent years, the application of the aerogel in the building field can improve the energy-saving effect by orders of magnitude. Therefore, how to improve the production equipment of the composite aerogel self-insulation template is an urgent problem in the technical field of insulation board manufacturing.

Chinese patent (publication No. CN108673997A) discloses a method for preparing a large-size and high-thickness aerogel board, which comprises aerogel felt and glue, and comprises the following steps: flattening the aerogel felt, coating glue, press forming, hot press forming and surface treatment. This patent is through processing the aerogel felt that the cost is lower and obtain easily, through technologies such as multilayer adhesion and hot briquetting, becomes the aerogel board of jumbo size, high thickness with softer aerogel felt processing, if carry out the tectorial membrane to its surface simultaneously, has reduced its possibility of falling the powder more.

Chinese patent (publication No. CN104356568B) discloses a preparation method of recycled paper fiber-PVA-carboxymethyl chitosan composite antibacterial aerogel, which comprises a process of preparing pretreatment liquid A by using waste paper, a process of preparing pretreatment liquid B by using polyvinyl alcohol and carboxymethyl chitosan, a process of preparing gel by mixing the pretreatment liquid A and the pretreatment liquid B, and a process of preparing an aerogel plate by using the gel. The aerogel of this patent utilizes life waste paper preparation, can save material greatly, changing waste into valuables, and the material that adopts in the preparation process is degradable material, and the feature of environmental protection is strong, and simple, the with low costs of preparation process moreover, and the aerogel of preparation has good antibiotic effect.

Chinese patent (publication No. CN106478055B) discloses a method for preparing silica aerogel felt capable of being shaped by hot pressing, which comprises adding hot-melt fiber material into glass wool of aerogel felt substrate material, adopting organic silicon as precursor, low-carbon alcohol as solvent, inorganic or organic acid as catalyst to prepare silica acid sol, adding water/alcohol solution of ammonia water and the like into the prepared silica acid sol to adjust pH, then saturating and soaking on mixed glass wool carrier, after gelling, performing supercritical extraction, modifying after extraction, hot pressing the prepared aerogel felt at 60-300 ℃ and 0.01-5MPa, using different forming devices to prepare plate-shaped and irregular-shaped aerogel heat preservation products, not affecting the surface hydrophobicity of the products, and not dropping aerogel powder, can meet the heat preservation requirement of irregular surfaces.

Chinese patent (publication number CN109354480A) discloses a preparation method of aerogel felt, belonging to the technical field of aerogel. The method aims to solve the technical problems that the reaction temperature is too high and high-pressure conditions are often accompanied in the existing method. The method comprises the following steps: adding acid into a hydrophobic silicon source, water and alcohol, stirring and mixing, adding orthosilicic acid prepared from water glass into the mixed solution, hydrolyzing, adding alkali to adjust the pH value, carrying out polymerization reaction to obtain gel, spraying the gel into a glass fiber felt by adopting a spraying device, pressurizing a reaction kettle until the glass fiber felt is completely soaked, aging, replacing with an isometric solution, and drying. Compared with a supercritical drying method, a freeze drying method, an infrared drying method and a microwave drying method, the technology method improves the safety of the manufacturing method, reduces the investment of personnel and equipment, and has low reaction temperature and no high-pressure reaction condition.

However, above patent all can all produce a certain amount of organic solution and volatilize in the preparation process, causes the pollution of production environment to traditional preparation facilities need hoist and mount many times, snatch aerogel substrate and compound aerogel felt, operating procedure and loaded down with trivial details, greatly increased operating personnel's intensity of labour. Meanwhile, the distribution uniformity of the aerogel precursor liquid in the aerogel substrate cannot be effectively improved in the prior art. Therefore, the invention provides production equipment for the composite aerogel self-insulation template, which can complete the whole production process of the composite aerogel felt in a closed reaction kettle and overcomes the defects of the prior art.

Disclosure of Invention

In view of the deficiencies of the prior art, the independent claim of the present invention provides a production apparatus for a composite aerogel self-insulating formwork, comprising at least: the reaction kettle at least comprises a containing space which can present a first form communicated with the atmospheric environment or a second form not communicated with the atmospheric environment so as to contain the aerogel substrate and the aerogel precursor liquid, wherein the aerogel precursor liquid can be fused with the aerogel substrate under set reaction conditions so as to obtain the composite aerogel felt, and the set reaction conditions can be at least limited by temperature parameters and/or pressure parameters of the reaction kettle; the board making platform can realize the hot press forming of the composite aerogel felt by applying extrusion force to the covering layer under the condition that the covering layer is arranged on the surface of the composite aerogel felt, and thus the self-insulation template is obtained, wherein the hot press forming can at least increase the bonding strength of the covering layer and the composite aerogel felt; the conveying belt is arranged between the reaction kettle and the plate making platform so as to convey the composite aerogel felt from the reaction kettle to the plate making platform, under the condition that the accommodating space is in the first form, the composite aerogel felt in the reaction kettle can move to the conveying belt based on the self gravity action of the composite aerogel felt, the reaction kettle at least comprises a kettle body, the shape of the kettle body can be limited by a hollow cylindrical shape, and the accommodating space is limited by the hollow cylindrical shape, wherein the aerogel base material can be curled in an end-to-end abutting mode to be in a hollow cylindrical shape, so that the aerogel base material can be abutted and contacted with the inner wall of the kettle body under the condition of being placed in the accommodating space; the autoclave body is internally provided with a rolling portion, the rolling portion can apply periodically existing extrusion force to a second surface, opposite to a first surface, of the aerogel substrate along the radial direction of the autoclave body under the condition that the aerogel substrate is placed in the accommodating space and the first surface of the aerogel substrate is abutted to the inside of the autoclave body, so that the initial volume of the pores in the aerogel substrate can be reduced based on the existence of the extrusion force, and the volume of the pores can be increased to the initial volume based on the elasticity of the aerogel substrate under the condition that the extrusion force is changed from the existence to the nonexistence.

According to a preferred embodiment, a hollow cylindrical partition body is further arranged in the kettle body, and the accommodating space is divided into a third cavity and a fourth cavity along the radial direction of the kettle body, wherein: the aerogel substrate can be placed in the third cavity such that the first surface can be in abutting contact with the separator, the roller compaction can be disposed in the third cavity such that the roller compaction can be in abutting contact to the second surface; the partition body is provided with a plurality of communication holes, so that the third cavity can be communicated with the fourth cavity, wherein under the condition that the aerogel precursor liquid is filled in the third cavity and the fourth cavity, the pressure intensity of the third cavity can be smaller than that of the fourth cavity, and when the extrusion force does not exist, the first surface can be changed into a state of being separated from the partition body from a state of being in abutting contact with the partition body based on the pressure intensity difference between the third cavity and the fourth cavity.

According to a preferred embodiment, the crushing unit can rotate along the circumferential direction of the autoclave body with the central axis of the autoclave body as the rotation center, and thereby apply a periodically existing pressing force to the aerogel substrate in the radial direction of the autoclave body, wherein: under the condition that the extrusion force exists, the volume of the pore space can be reduced so that the aerogel precursor liquid in the pore space can be diffused at least along the radial direction of the kettle body and the circumferential direction of the kettle body, wherein the pressure difference can weaken the diffusion of the aerogel precursor liquid in the radial direction of the kettle body in a mode of increasing diffusion resistance, so that the diffusion speed of the aerogel precursor liquid in the radial direction of the kettle body can be reduced.

According to a preferred embodiment, in the case where the rolling part includes at least two rolling rolls each having an axial direction parallel to the axial direction of the autoclave body, the shape of the edge of the longitudinal section of the rolling roll parallel to the axial direction of the autoclave body can be defined by a corrugated shape, wherein: the first rolling roller and the second rolling roller which are adjacent to each other in the circumferential direction of the kettle body can present a dog-tooth staggered state in the axial direction of the kettle body, so that under the condition that the first rolling roller and the second rolling roller use the central axis of the kettle body as a rotation center and synchronously rotate in the circumferential direction of the kettle body, the same area of the aerogel substrate can present an alternate stressed state of compression and non-compression.

According to a preferred embodiment, in the axial direction along the kettle body, the rolling roller is provided with a plurality of protrusions, the shapes of which can be all defined by circular rings, wherein: the shape of the cross section of the protrusions parallel to the axial direction of the kettle body can be defined by a semicircle, and a set distance can be spaced between two protrusions adjacent to each other in the axial direction of the kettle body, thereby defining the edge in a corrugated shape; based on the plurality of bulges distributed at intervals, the section of the aerogel substrate abutting and contacting the bulges can be in a pressed state in the axial direction of the kettle body, and the section of the aerogel substrate between two adjacent bulges can be in an uncompressed state, so that a pressure difference parallel to the axial direction of the kettle body is formed in the aerogel substrate, wherein the diffusion speed of the aerogel precursor liquid in the aerogel substrate in the axial direction of the kettle body can be increased based on the pressure difference.

According to a preferred embodiment, in the case where the vertical distance between the section between two adjacent protrusions of a first lamination roller and the conveyor belt is a first height, at least one of the protrusions is provided on a section of a second lamination roller corresponding to the first height, so that the first and second lamination rollers can assume the dog-staggered state, wherein: at a first moment, the first rolling roller can roll the aerogel substrate, wherein at least one protrusion of the first rolling roller can be in abutting contact with a first set area of the aerogel substrate, so that the thickness of the first set area in the radial direction of the kettle body can be reduced, and a second set area of the aerogel substrate adjacent to the first set area in the axial direction of the kettle body can be in an uncompressed state; at a second moment, the second rolling roller can roll the aerogel substrate, wherein at least one protrusion of the second rolling roller can be in abutting contact with the second set area, so that the thickness of the second set area in the radial direction of the kettle body can be reduced, and the first set area can be in an uncompressed state; the first time and the second time can be set at intervals for a set time, so that the rolling part can apply extrusion force which exists periodically to the aerogel base material in the radial direction of the kettle body.

According to a preferred embodiment, the production facility further comprises a buffer container, wherein: a kettle cover is detachably arranged on a first end part of the kettle body in the axial direction, and a bottom groove is detachably arranged on a second end part of the kettle body opposite to the first end part, wherein an accommodating space in the second shape can be defined based on the sealing connection between the kettle cover and the kettle body and the sealing connection between the bottom groove and the kettle body; the bottom groove is provided with a liquid outlet for discharging the aerogel precursor liquid from the accommodating space, the kettle body is provided with a liquid inlet for injecting the aerogel precursor liquid into the accommodating space, the liquid inlet can be communicated with the liquid outlet through the buffer container, and therefore the aerogel precursor liquid in the accommodating space can be transmitted to the buffer container for temporary storage.

According to a preferred embodiment, a partition plate is arranged on the bottom tank, so that the accommodating space can be divided into a first cavity and a second cavity in the axial direction of the kettle body, wherein the partition body can be arranged in the first cavity to divide the first cavity into the third cavity and the fourth cavity in the radial direction of the kettle body; the baffle plate is provided with a hole so that the first cavity and the second cavity can be communicated with each other, the hole is provided with a sealing device so that the hole can be in an opening state or a closing state, wherein the hole can be in the opening state under the condition that the pressure of the second cavity is higher than that of the first cavity, and the hole can be in the closing state under the condition that the pressure of the second cavity is lower than that of the first cavity.

The invention also provides a production method of the composite aerogel self-insulation template, which at least comprises the following steps: configuring a reaction kettle at least having a containing space capable of presenting a first form communicated with an atmospheric environment or a second form not communicated with the atmospheric environment to realize the containing of an aerogel substrate and an aerogel precursor liquid, wherein the aerogel precursor liquid can be fused with the aerogel substrate under a set reaction condition to obtain a composite aerogel felt, and the set reaction condition can be at least limited by a temperature parameter and/or a pressure parameter of the reaction kettle; configuring a plate making platform, so that the plate making platform can realize the hot press molding of the composite aerogel felt by applying extrusion force to the covering layer under the condition that the covering layer is arranged on the surface of the composite aerogel felt, and obtaining a self-heat-preservation template, wherein the hot press molding can at least increase the bonding strength of the covering layer and the composite aerogel felt; a conveyor belt disposed between the reaction vessel and the plate making platform to convey the composite aerogel blanket from the reaction vessel to the plate making platform, wherein the composite aerogel blanket in the reaction vessel can move to the conveyor belt based on its own gravity when the accommodating space is in the first configuration; the reaction vessel is further configured to: the shape of the kettle body can be defined by a hollow cylinder, so that the accommodating space is defined, wherein the aerogel substrate can be curled in an end-to-end abutting mode to form the hollow cylinder, so that the aerogel substrate can be abutted and contacted with the inner wall of the kettle body under the condition of being placed into the accommodating space; the autoclave body is internally provided with a rolling part, under the condition that the aerogel substrate is placed in the accommodating space and the first surface of the aerogel substrate is abutted against the inside of the autoclave body, the rolling part can apply periodically existing extrusion force to the second surface, opposite to the first surface, of the aerogel substrate along the radial direction of the autoclave body, so that the initial volume of pores inside the aerogel substrate can be reduced based on the existence of the extrusion force, and under the condition that the extrusion force is changed from the existence to the nonexistence, the volume of the pores can be increased to the initial volume based on the self elasticity of the aerogel substrate.

According to a preferred embodiment, the method further comprises the steps of: set up in the cauldron body and be hollow circular cylinder's division volume to with accommodation space separates for third cavity and fourth cavity in the radial direction along the cauldron body, wherein: the aerogel substrate can be placed in the third cavity such that the first surface can be in abutting contact with the separator, the coin can be disposed in the third cavity such that the coin can be in abutting contact to the second surface; the partition body is provided with a plurality of communication holes, so that the third cavity can be communicated with the fourth cavity, wherein under the condition that the aerogel precursor liquid is filled in the third cavity and the fourth cavity, the pressure intensity of the third cavity can be smaller than that of the fourth cavity, and when the extrusion force does not exist, the first surface can be changed into a state separated from the partition body from a state of abutting contact with the partition body based on the pressure intensity difference between the third cavity and the fourth cavity.

Drawings

FIG. 1 is a schematic structural diagram of production equipment for a preferred composite aerogel self-insulation template of the invention;

FIG. 2 is a schematic top view of a preferred reactor of the present invention;

FIG. 3 is a schematic view of the construction of a preferred sealing device of the present invention; and

FIG. 4 is a schematic diagram of the structure of a preferred reactor of the present invention.

List of reference numerals

1: a reaction kettle 2: plate making platform 11: kettle body

12: and (3) a kettle cover 13: bottom groove 14: conveyor belt

15: first cavity 16: second cavity 17: hole(s)

18: the closing means 23: air inlet 24: air inlet and outlet

25: liquid inlet 41: fixing the shaft 100: composite aerogel felt

101: aerogel substrate 102: aerogel precursor liquid 200: self-heat-preservation template

44: separator 26: liquid discharge port 27: buffer container

30: communication hole 31: projection 1 a: partition body

1 b: rolling section 15 a: third cavity 15 b: the fourth cavity

18 a: a body 18 b: the clip body 18 c: guide body

10 b: the rotating shaft 11 b: the rolling roller 12 b: connecting rod

110 b: first rolling roller 111 b: second rolling roller

101 a: first surface 101 b: second surface

2 a: glue spraying device 2 b: hot press roll 2 c: base seat

Detailed Description

This is described in detail below with reference to fig. 1-4.

Example 1

Preferably, as shown in fig. 1, the invention provides production equipment for a composite aerogel self-insulation template, which at least comprises a reaction kettle 1 and a plate making platform 2. The reaction kettle 1 is used for preparing the composite aerogel felt 100, and the plate making platform 2 is used for preparing the composite aerogel felt 100 into the self-insulation template 200. Specifically, the production equipment is configured to perform the following steps to complete the preparation of the self-insulation formwork 200:

s1: composite aerogel blanket 100 is produced based on autoclave 1.

Specifically, the reaction kettle 1 has an accommodating space capable of presenting a first state communicated with the atmospheric environment or a second state not communicated with the atmospheric environment, so that the accommodating space in the second state can accommodate the aerogel precursor liquid and the aerogel substrate 101, and the aerogel precursor liquid can be uniformly distributed in the aerogel substrate 101 in a penetrating manner, for example, to be fused with the aerogel substrate 101, so as to form the composite aerogel blanket 100. Preferably, the fusion of the aerogel precursor liquid with the aerogel substrate 101 can be performed under set reaction conditions, wherein the set reaction conditions can be at least defined by temperature parameters and/or pressure parameters of the reaction vessel 1. For example, the set reaction conditions may be a reaction temperature of 50 ℃ and a reaction pressure of normal pressure.

Preferably, the aerogel substrate 101 can be formed by stacking a fiber mat and a flexible material, so that the aerogel substrate 101 has certain elasticity. The fiber felt and the flexible material are in a ring shape which is overlapped layer by layer, so that the fiber felt and the flexible material can be conveniently placed in the kettle body 11. Preferably, the fiber mat may be one or more of glass fibers, ceramic fibers and PET fibers. Preferably, the flexible material may be a surface liquid impermeable, interior porous, elastomeric material. More preferably, the flexible material may be one or more of polyurethane, fluorochloroethylene and fluoropolymer.

Preferably, the reaction kettle 1 at least comprises a kettle body 11, a kettle cover 12 and a bottom groove 13. The shape of the kettle 11 can be defined by a hollow cylinder with two open ends, so that the kettle has a containing space for containing aerogel precursor liquid and the aerogel substrate 101. The vessel cover 12 is provided on the first end of the vessel body 11 to seal the first end. The bottom groove 13 is rotatably disposed at the second end of the kettle 11, so that the second end can be opened or sealed according to actual needs. The accommodation space exhibiting the second form can be defined based on the sealing connection of the kettle cover 12 and the kettle body 11 and the sealing connection of the bottom groove 13 and the kettle body 11. Specifically, as shown in fig. 1, the bottom groove 13 is provided with a fixing shaft 41, and one end of the fixing shaft 41 is fixedly connected to the bottom groove 13. The other end of the fixed shaft 41 is rotatably connected to the kettle body 11. For example, a fixing groove or a T-shaped groove may be formed in the kettle 11, and the end of the fixing shaft is T-shaped, and then can be nested in the T-shaped groove, so that the fixing shaft 41 can rotate around the T-shaped groove. Thereby realizing the opening or closing of the kettle body 11 through the relative rotation of the bottom groove 13 and the kettle body 11. Preferably, referring to fig. 2, the aerogel substrate 101 can be curled in an end-to-end abutting manner to present a hollow cylindrical shape, so that the aerogel substrate 101 can be in abutting contact with the inner wall of the kettle 11 when being placed in the accommodating space.

Preferably, as shown in fig. 1 and 3, the bottom tank 13 is provided with a partition 44. In the case where the bottom tank 13 is rotated to the first position to seal the vessel body 11, the partition plate 44 can partition the vessel body 11 into the first cavity 15 and the second cavity 16. Both the aerogel precursor liquid and the aerogel substrate 101 can be placed into the first cavity 15 from the first end of the tank 11. The partition 44 is provided with at least one hole 17 and a sealing device 18 corresponding to the hole 17. The holes 17 can be closed or open by means of a closing device corresponding thereto. In case the pressure in the first chamber is higher than the pressure in the second chamber, the closing means 18 communicates the first chamber 15 and the second chamber 16 by opening the aperture 17. In case the pressure of the first chamber is lower than the pressure of the second chamber, the closing means 18 separates the first chamber 15 and the second chamber 16 in such a way that they close the aperture 17. Specifically, the bottom groove 13 can be provided with at least one air inlet and outlet 24, for example, an inflation device of an air pump can be communicated with the second cavity 16 through the air inlet and outlet 24, and then the second cavity 16 can be pressurized through the air pump, so that the air pressure of the second cavity 16 is greater than that of the first cavity 15, and at this time, the sealing device 18 is nested in the hole 17, so that the first cavity 15 and the second cavity 16 are not communicated. When the air pressure of the second cavity 16 is smaller than the air pressure of the first cavity 15, the sealing device 18 can form an exhaust passage by sliding along the hole 17, so that the first cavity 15 and the second cavity 16 are in a communication state. As shown in fig. 1, when the bottom tank 13 is aligned with the kettle body 11, it is in a first position. When the bottom groove 13 rotates 180 ° around the fixed shaft 41 with respect to the vessel body 11, the bottom groove is in the second position.

Preferably, the kettle body 11 is provided with at least one liquid inlet 25. At least one drain port 26 is provided in the bottom tank 13. The drain port 26 can communicate with the inlet port 25 via the buffer container 27. The aerogel precursor liquid in the kettle 11 can be transferred to a buffer container 27 through a liquid outlet 26 for temporary storage. When the kettle cover can be prevented from being opened by arranging the buffer container, the aerogel precursor liquid volatilizes. After all aerogel precursor liquid in the kettle body 11 is discharged, the bottom tank 13 can be opened, and then the prepared composite aerogel felt 100 can be discharged from the kettle body 11 based on the self gravity of the composite aerogel felt, so that the complex operation of hanging the composite aerogel felt 100 out of the kettle cover in a hoisting mode is avoided. After the composite aerogel blanket 100 is discharged and the autoclave body 11 is sealed again through the bottom groove 13, a new aerogel substrate 101 can be put into the autoclave body 11 by opening the autoclave cover 12, and simultaneously, the aerogel precursor liquid temporarily stored in the buffer container 27 can enter the autoclave body 11 again through the liquid inlet 25 for recycling. It will be appreciated that pumps may be provided between the liquid outlet and the buffer tank and between the buffer tank 27 and the liquid inlet 25, so as to provide the motive force for the circulation of the aerogel precursor liquid. Preferably, a conveyor 14 is also arranged between the reaction kettle 11 and the plate making platform 2. With the holding space in the first configuration, composite aerogel blanket 100 within reaction vessel 1 can move to conveyor 14 based on its own weight. Specifically, the first end of the conveyor belt 14 may be located at the lower side of the reaction vessel 11, so that the prepared composite aerogel blanket 100 can be transferred onto the conveyor belt 14 based on its own weight and further conveyed to the board making platform 2 through the conveyor belt 14. Through the mode, the following technical effects can be at least achieved: according to the invention, the reaction kettle 1 is matched with the bottom groove 13, so that the times of carrying operation of organic materials in the production process are effectively reduced, the labor intensity of constructors is greatly reduced, meanwhile, the generated composite aerogel felt 100 can be moved to the plate making platform 2 through the conveyor belt 14 by rotating the bottom groove, the accidents of organic solvent dripping, volatilization and the like in the carrying process of the composite aerogel felt 100 are avoided, and the production efficiency is greatly improved.

Preferably, the production of composite aerogel blanket 100 includes at least the following steps:

s10: the bottom tank 13 is rotated to the first position to seal the vessel 11, the vessel cover 12 is opened and the aerogel substrate 101 and the aerogel precursor liquid are placed in the vessel 11 to produce the wet gel mat 103.

Specifically, after the kettle cover 12 is opened, the aerogel substrate 101 can be lifted into the kettle 11 by a lifting device such as a crane. The second chamber 16 is pressurized through the air inlet/outlet 24 so that the air pressure of the second chamber 16 is greater than the air pressure of the first chamber 15, and thus the first chamber 15 and the second chamber 16 are not communicated with each other. The prepared aerogel precursor solution can be injected into the kettle 11 through the liquid inlet 25. After closing kettle cover 12 to seal first cavity 15, the aerogel precursor solution can sufficiently penetrate aerogel substrate 101 in, for example, a high temperature or high pressure environment, thereby completing the preparation of wet gel blanket 103. It is understood that corresponding auxiliary equipment may be provided in the autoclave body 11 according to the desired reaction conditions. For example, when a high temperature reaction condition is required, a heater may be provided in the tank 11.

S20: the second chamber 16 is depressurized based on the air inlet/outlet port 24 so that the first chamber 15 and the second chamber 16 communicate with each other.

Specifically, the air inlet and the air outlet 24 are opened, so that the second cavity 16 is communicated with the external environment, the air pressure of the second cavity 16 is reduced, and finally the first cavity 15 is communicated with the second cavity 16. At this time, the aerogel precursor liquid in the kettle 11 can enter the buffer container 27 through the liquid outlet 26 for temporary storage.

S30: the drying medium is injected into the first chamber 15 based on the air inlet 23 so that the drying medium can perform a displacement reaction with the solvent in the wet gel station 103.

Specifically, the air inlet 23 is provided on the kettle body 11. The drying medium may be carbon dioxide and/or nitrogen, etc., and the drying medium may be injected into the first chamber 15 by an injection means such as an air pump. When the aerogel precursor liquid in the kettle 11 is completely discharged into the buffer container 27, the liquid discharge port 26 is closed. The drying medium is injected into the kettle body 11 through the air inlet, and the pressure of the kettle body 11 is gradually increased to the pressure value required by the displacement reaction, so that the displacement of the solvent in the wet gel station 103 can be realized through the drying medium. Thereby completing the manufacture of composite aerogel blanket 100.

Preferably, the production of the wet gel mat 103 comprises at least the following steps:

s101: the second chamber 16 is pressurized through the inlet and outlet port 24 so that the pressure of the first chamber is less than the second chamber air pressure.

S102: the aerogel precursor liquid 102 is added through the liquid inlet 25 until the aerogel substrate 101 and the aerogel precursor liquid 102 form a wet gel blanket 103.

Specifically, the aerogel precursor solution may be an inorganic compound sol and/or an organic compound sol. The inorganic compound may be one or more of silica, alumina, titania, iron oxide, alumina, zirconia, zinc oxide, and copper oxide. The organic compound may be one or more of phenolic resin, melamine formaldehyde resin, urea formaldehyde resin, epoxy resin, polysiloxane, polyacrylate, polyurethane, polyimide.

S2: the self-insulating template 200 is generated based on the plate making platform 2 in a manner of pressing and forming the composite aerogel felt 100.

Preferably, the self-insulation formwork 200 may be prepared by attaching a cover layer to the front and/or the back of the composite aerogel blanket 100. The cover layer may be a high-strength plate such as a plastic plate, a foam plate, or a cement plate, and the cover layer may further enhance the structural strength of the self-insulation formwork 200 so that the self-insulation formwork is not bent when subjected to an external force. The board making platform 2 can realize the hot press forming of the composite aerogel felt 100 by applying an extrusion force to the covering layer under the condition that the covering layer is arranged on the surface of the composite aerogel felt 100, and thus the self-heat-insulation template 200 is obtained, wherein the hot press forming can increase the bonding strength of the covering layer and the composite aerogel felt 100. Specifically, as shown in fig. 1, the plate making platform 2 at least includes a glue spraying device 2a, a hot pressing roller 2b and a base 2 c. The glue spraying device 2a and the hot pressing roller 2b are both arranged on the base 2 c. The glue spraying device 2a is used for spraying a layer of adhesive such as glue on the surface of the composite aerogel blanket 100. The glue spraying device 2a may be composed of a glue spraying nozzle, a pressure pump, and a storage container, and may be sprayed from the glue spraying nozzle through the adhesive in the storage container by the pressure pump. After the cover layer is placed on the surface of the composite aerogel blanket 100, a certain pressure can be applied to the cover layer by rolling of the hot-pressing roller 2b, so that the cover layer and the composite aerogel blanket 100 can be bonded conveniently. Specifically, as shown in fig. 1, after the composite aerogel blanket 100 is transferred onto the base 2c, an adhesive may be sprayed on, for example, the upper surface by the glue spraying device 2a, then the blanket may be placed on the upper surface thereof by a manual or robot, then the hot press roller 2b moves downward to apply pressure to the blanket, and finally the hot press roller 2b may move left and right or back and forth to complete the back and forth rolling.

Example 2

This embodiment may be a further improvement and/or a supplement to embodiment 1, and repeated contents are not described again. The preferred embodiments of the present invention are described in whole and/or in part in the context of other embodiments, which can supplement the present embodiment, without resulting in conflict or inconsistency.

The invention also provides a production method of the composite aerogel self-insulation template, which at least comprises the following steps:

s1: rotate kerve 13 to the first position and airtight cauldron body 11 is inside, open kettle cover 12 and put into cauldron body 11 with aerogel substrate 101 in, pressurize second cavity 16 through business turn over gas port 24 for the pressure of first cavity is less than second cavity atmospheric pressure.

S2: adding the aerogel precursor solution 102 through the liquid inlet 25 until the aerogel substrate 101 and the aerogel precursor solution 102 form a wet gel blanket 103,

s3: the second chamber 16 is depressurized based on the inlet/outlet port 24 such that the first chamber 15 and the second chamber 16 communicate with each other, and the drying medium is injected into the first chamber 16 based on the inlet port 23.

S4: based on the replacement reaction between the drying medium and the solvent in the wet gel station 103, the drying medium after the replacement reaction is discharged from the air inlet 24 through the holes 17, and then the composite aerogel blanket 100 is generated.

S5: the composite aerogel blanket 100 is laid flat on the board making platform 2 and coated with inorganic high-temperature glue, and then is subjected to press forming.

Preferably, as shown in fig. 3, the closing means 18 comprises at least a body 18a, a snap-in body 18b and a guide body 18 c. The body 18a and the clip body 18c can each take the shape of a disk. The diameter of the clip body 18c is smaller than the body 18a so that the clip body 18c can be disposed on the body 18 a. At least two guiding bodies 18c can be provided on the body 18 a. The shape of the guide body 18c can be defined by a round bar shape. The guide body 18c can be inserted into the partition 44. For example, the partition 44 may be provided with a guide hole, and the guide body is slidably nested in the guide hole, so that the guide body can slide, and further the body is driven to slide along the extending direction of the hole 17. Specifically, as shown in fig. 3, when the body 18a moves vertically upward, the clamping body 18b can be nested in the hole 17, so as to seal the hole. When the body 18a moves vertically downward, the engaging body is separated from the hole, so that the first cavity is communicated with the second cavity.

Example 3

This embodiment may be a further improvement and/or a supplement to the foregoing embodiment, and repeated contents are not described again. All or a portion of the preferred versions of other embodiments may be supplemented by other embodiments, all without conflict or conflict.

Preferably, as shown in fig. 2 and 4, the reaction vessel 1 further includes a crushing section 1 b. In the case where the shape of the tank 11 is defined by a hollow cylindrical shape, the aerogel substrate 101 can be placed in the first cavity 15 after being rolled into a cylindrical shape, thereby enabling the first surface 101a of the aerogel substrate 101 to be in abutting contact with the inside of the tank 11. The rolling portion 1b can apply a periodically existing extrusion force to the second surface 101b of the aerogel substrate 101 opposite to the first surface 101a along the radial direction of the reaction kettle 1, so that the aerogel substrate 101 is tightly attached to the inner wall of the kettle body 11. Meanwhile, the initial volume of the pores inside the aerogel substrate 101 can be reduced based on the presence of the pressing force by applying the pressing force to the second surface, and the volume of the pores can be increased to the initial volume based on the self-elasticity of the aerogel substrate 101 in the case where the pressing force is changed from the presence to the absence. The initial volume of the pores refers to the volume of the pores that the aerogel substrate retains based on its own elasticity when not subjected to an external force. Specifically, the aerogel substrate 101 generally has pores, and when the crushing section 1b applies pressure thereto, the pores are compressed, thereby causing the thickness of the aerogel substrate 101 in the radial direction of the reaction tank 1 to be reduced. The rolling part 1b is configured as an operation mode in which pressure is cyclically applied to the aerogel substrate 101, so that the aerogel substrate 101 can restore the pores to the original state based on its own elasticity when the pressure applied by the rolling part 1b is removed, thereby increasing the thickness of the aerogel substrate 101 in the radial direction of the reaction vessel 1. Specifically, the rolling part 1b includes a rotation shaft 10b and at least one rolling roller 11 b. One end of the rotation shaft 10b is rotatably connected to the kettle cover 12 such that the rotation shaft 10b can rotate about its own central axis. At least one connecting rod 12b is disposed on the rotating shaft 10b, and the extending direction of the connecting rod 12b and the extending direction of the rotating shaft 10b are perpendicular to each other. The milling roller 11b is hinged to the connecting rod 12b so that the milling roller 11b can rotate about its own central axis. The extending direction of the rolling roller 11b and the extending direction of the rotating shaft 10b are parallel to each other. When pivot 10b rotation, it can drive rolling roller 11b and revolve the rotation of pivot 10b to because rolling roller 11b and aerogel substrate 101 laminating, make rolling roller 11b can be in step around its axis rotation of oneself. The rotation shaft 10b can coincide with the central axis of the kettle 11. The operation mode in which the rolling roller 11b applies a pressing force periodically existing to the aerogel substrate 101 is realized by the rotation of the rotating shaft 10 b. Through the mode, the following technical effects can be at least achieved: one, at the in-process that aerogel substrate 101 thickness increases, aerogel substrate 101 can initiatively adsorb the aerogel precursor liquid rather than the contact, and then can accelerate the fusion speed of aerogel precursor liquid and aerogel substrate 101. The two, when rolling roller 11b rolls the first position of aerogel substrate 101, the aerogel precursor liquid of aerogel substrate 101 in the hole of first position department can move along the circumferencial direction of cauldron body 11 based on the effect of extrusion force, and then get into the second position adjacent with the first position of aerogel substrate 101, namely, through the effect of rolling roller 11b, can make the diffusion of the aerogel precursor liquid in the hole at the circumferencial direction and the radial direction along cauldron body 11, and then increase the distribution uniformity of aerogel precursor liquid in aerogel substrate 101. The three, at the rotatory in-process of rolling roller 11b around rotation axis 10b, can stir aerogel precursor liquid, and then improve the distribution homogeneity of aerogel precursor liquid in aerogel substrate 101.

Preferably, as shown in fig. 4, the reaction tank 1 further includes a separator 1 a. In the case where the shape of the vessel 11 is defined by a hollow cylindrical shape, the shape of the partition body 1a may also be defined by a hollow cylindrical shape. The partition body 1a is provided in the kettle body 11 to partition the accommodation space into the third cavity 15a and the fourth cavity 15b in a radial direction along the kettle body 11. The third chamber 15a and the fourth chamber 15b may each be filled with an aerogel precursor solution. The aerogel substrate 101 is rolled into a cylindrical shape and placed into the third cavity 15a so that the first surface 101a of the aerogel substrate 101 can be bonded to the separator 1 a. The rolling portion 1b is disposed in the third cavity 15a, so that it can abut against the second surface 101b contacting the aerogel substrate 101, and further the extrusion to the aerogel substrate 101 is realized. Preferably, the partition body 1a is further provided with a plurality of communication holes 30 so that the third and fourth cavities 15a and 15b can communicate with each other.

Preferably, in the case where both the third cavity 15a and the fourth cavity 15b are filled with the aerogel precursor liquid 102, the pressure of the third cavity 15a can be smaller than the pressure of the fourth cavity 15b, so that the first surface 101a can be changed from the state of abutting contact with the separator 1a to the state of being separated from the separator 1a based on the pressure difference between the third cavity 15a and the fourth cavity 15b when the squeezing force is absent. Specifically, under the condition that the aerogel precursor liquid is filled in both the third cavity 15a and the fourth cavity 15b, a set pressure difference can be provided between the third cavity 15a and the fourth cavity 15b, so that the pressure of the third cavity 15a can be greater than the pressure of the fourth cavity 15 b. Through the above arrangement mode, at least the following technical effects can be achieved: one, at the in-process that rolling roller 11b rolled aerogel substrate 101, can make aerogel substrate 101 and baffle 1a closely laminate, be provided with a plurality of intercommunicating pore 30 on baffle 1a, the position that corresponds with intercommunicating pore 30 of aerogel substrate 101 can contact with the aerogel precursor liquid in fourth cavity 15b, but the position that aerogel substrate 101 and baffle 1a laminated then can't contact with the aerogel precursor liquid in fourth cavity 15b, and then lead to the inhomogeneous distribution of aerogel precursor liquid in aerogel substrate 101. According to the invention, by setting the pressure of the fourth cavity 15b to be greater than the pressure of the third cavity 15a, when the extrusion force applied by the rolling roller 11b disappears, the aerogel substrate 101 can be partially separated from the separator 1a through the pressure difference, so that all surfaces of the aerogel substrate 101 can be fully contacted with the aerogel precursor liquid, and the distribution uniformity of the aerogel precursor liquid in the aerogel substrate 101 is improved. The two makes aerogel substrate 101 can present the state of partial separation with the separator through pressure difference, and the cooperation rolls roller 11b simultaneously and exerts pressure to the circulation of aerogel substrate 101, can avoid long-time and the separator 1a of aerogel substrate 101 to be in the laminating state and the difficult problem of separating that leads to. The three, in the process of rolling aerogel substrate 101 by rolling roller 11b, the pores of aerogel substrate 101 can be compressed, and then the aerogel precursor liquid in the pores can be diffused in the radial direction and the circumferential direction of kettle 11, because of the pressure difference between third cavity 15a and fourth cavity 15b, the pressure difference can limit the diffusion of aerogel precursor liquid in the radial direction of kettle 11, and further relatively enhance the diffusion of aerogel precursor liquid in the circumferential direction of kettle 11, thereby achieving the purpose of enhancing the distribution uniformity of aerogel precursor liquid in aerogel substrate 101.

Preferably, in the case where the rolling part 1b includes at least two rolling rolls 11b, the shape of the edge of the longitudinal section of the rolling rolls 11b parallel to the axial direction of the kettle body 11 can be defined by a corrugated shape. The first and

second laminating rollers

110b and 111b adjacent in the circumferential direction along the kettle body 11 can assume a state of being dog-staggered with each other. Specifically, the rolling roller 11b has a plurality of protrusions 31 spaced apart from each other in the axial direction of the rolling roller 11b, and thereby defines a corrugated edge shape. The shape of the cross section of the protrusion 31 parallel to the axial direction of the vessel body 11 can be defined by a semicircular ring shape. When the vertical distance between the section between two adjacent protrusions 31 on the first rolling roller 110b and the conveyor belt 14 is a first height, the protrusions 31 are disposed at the position of the second rolling roller 111b corresponding to the first height, thereby defining the state of the first rolling roller 110b and the second rolling roller 111b with the staggered dog teeth. When the first rolling roller 110b and the second rolling roller 111b rotate in synchronization, they can apply a pressing force that periodically exists to a set region of the aerogel substrate 101. Specifically, at the first moment, the first rolling roller 110b can roll the aerogel substrate 101, wherein the at least one protrusion 31 of the first rolling roller 110b can be in abutting contact with the first set region of the aerogel substrate 101, so that the thickness of the first set region in the radial direction along the tank 11 can be reduced, and the second set region of the aerogel substrate 101 adjacent to the first set region in the axial direction along the tank 11 can assume an uncompressed state. At a second moment, the second rolling roller 111b can roll the aerogel substrate 101, wherein the at least one protrusion 31 of the second rolling roller 110b can be in abutting contact with the second set area, so that the thickness of the second set area in the radial direction of the tank 11 can be reduced, and the first set area can assume an uncompressed state; the first timing and the second timing can be separated by a set time length, so that the rolling section 1b can apply a pressing force to the aerogel base material 101, which exists periodically, in the radial direction along the tank 11.

Through the setting mode, the following technical effects can be at least achieved: in the first embodiment, when the first rolling roller 110b and the second rolling roller 111b rotate synchronously along the circumferential direction of the autoclave body 11 with the central axis of the autoclave body 11 as the rotation center, the same region of the aerogel substrate 101 can be alternately stressed with or without being stressed. Specifically, make rolling roller 11b present the wavy form of height fluctuation through setting up arch 31, and then rolling roller 11b is in the in-process of rolling aerogel substrate 101, can make aerogel substrate 101 be in the state of partly pressurized and partly not pressurized, aerogel substrate 101 with arch 31 contact promptly is in the pressurized state, and aerogel substrate 101 between two adjacent archs 31 is then in the state of not pressurized, and then can form the local pressure difference along the radial direction of rolling roller 11b, can impel through this pressure difference that the aerogel precursor liquid in the aerogel substrate 101 with arch 31 contact can be along the radial of rolling roller 11b, towards the diffusion of aerogel substrate 101 between two archs 31, finally improve the distribution uniformity of aerogel precursor liquid in aerogel substrate 101. The first rolling roller 110b and the second rolling roller 111b are in a dog-tooth staggered state, so that the same part of the aerogel substrate 101 can be in an alternate state of being pressed and not pressed, that is, when the first rolling roller 110b rolls the portion a of the aerogel substrate 101, the protrusion 31 of the first rolling roller 110b is in contact with the part a, so that the part a is in a pressed state, when the rotating shaft 10b rotates to drive the second rolling roller 111b to roll the part a, the gap between two adjacent protrusions 31 on the second rolling roller 111b corresponds to the part a, so that the part A is not pressed, and a pressure difference parallel to the axial direction of the kettle body 11 is formed in the aerogel substrate 101, based on this pressure difference, the diffusion speed of the aerogel precursor liquid 102 in the aerogel substrate 101 in the axial direction of the tank 11 can be increased. In addition, through the rotation of the rotating shaft 10b, the first rolling roller 110b and the second rolling roller 111b can be driven to roll the part a alternately, so that the part a is in an alternate state of being pressed and not pressed. When the portion a is in an uncompressed state, the aerogel substrate 101 at this position can assume a recovery state of volume increase based on its own elasticity, that is, the volume of the pores inside the position can be increased, and then the aerogel precursor liquid in the third cavity 15a and/or the fourth cavity 15b can be absorbed. Meanwhile, in the axial direction of the lamination roller 10B, the force state of the B site adjacent to the a site can be opposite to the a site. That is, when the part A is compressed, the part B is not compressed, or when the part A is not compressed, the part B is compressed. Make the stress state at A position and B position for rolling roller 10B and A position and B position contact simultaneously, the alternate pressurized at A position and B position can guarantee that one of them is in the state that volume expansion and active absorption aerogel precursor liquid, and then can effectively improve the fusion speed of aerogel precursor liquid and aerogel substrate 101.

Preferably, as shown in fig. 1, both the partition body 1a and the crushed portion 1b may be provided on the kettle cover 12, and when the kettle cover 12 is taken out upward, the partition body 1a and the crushed portion 1b may be taken out together. In order to realize the rotation of the pressing portion, a driving device, such as a driving motor, may be disposed on the kettle cover 12, and connected to the rotating shaft 10b, so as to drive the rotating shaft 10b to rotate.

It should be noted that the above-mentioned embodiments are exemplary, and that those skilled in the art, having benefit of the present disclosure, may devise various arrangements that are within the scope of the present disclosure and that fall within the scope of the invention. It should be understood by those skilled in the art that the present specification and figures are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents.

Claims

1. The utility model provides a production facility of compound aerogel self preservation temperature template, includes at least:

the device comprises a reaction kettle (1) and a gas-liquid separator, wherein the reaction kettle at least comprises a containing space which can be in a first state communicated with the atmospheric environment or in a second state not communicated with the atmospheric environment so as to contain an aerogel substrate (101) and an aerogel precursor liquid (102), and the aerogel precursor liquid (102) can be fused with the aerogel substrate (101) under set reaction conditions to obtain a composite aerogel felt (100), wherein the set reaction conditions can be at least defined by temperature parameters and/or pressure parameters of the reaction kettle (1);

the board making platform (2) can realize the hot-press forming of the composite aerogel felt (100) by applying extrusion force to the covering layer under the condition that the covering layer is arranged on the surface of the composite aerogel felt (100), and thus the self-heat-preservation template (200) is obtained, wherein the hot-press forming can at least increase the bonding strength of the covering layer and the composite aerogel felt (100);

a conveyor belt (14) arranged between the reaction vessel (1) and the plate making platform (2) to convey the composite aerogel blanket (100) from the reaction vessel (1) to the plate making platform (2), wherein the composite aerogel blanket (100) within the reaction vessel (1) is movable to the conveyor belt (14) based on its own weight with the containment space in the first configuration,

it is characterized in that the preparation method is characterized in that,

the reaction kettle (1) at least comprises a kettle body (11), wherein the shape of the kettle body (11) can be defined by a hollow cylinder shape, and the accommodating space is defined by the hollow cylinder shape, wherein the aerogel substrate (101) can be curled in an end-to-end abutting mode to form the hollow cylinder shape, so that the aerogel substrate (101) can be in abutting contact with the inner wall of the kettle body (11) under the condition of being placed into the accommodating space;

the autoclave body (11) can be provided with a pressing part (1b), under the condition that the aerogel substrate (101) is placed in the accommodating space and the first surface (101a) of the aerogel substrate (101) is in abutting contact with the inside of the autoclave body (11), the pressing part (1b) can apply periodically existing extrusion force to the second surface (101b) of the aerogel substrate (101) opposite to the first surface (101a) along the radial direction of the autoclave body (11), so that the initial volume of the pore inside the aerogel substrate (101) can be reduced based on the existence of the extrusion force, and under the condition that the extrusion force is changed from existence to nonexistence, the volume of the pore can be increased to the initial volume based on the self elasticity of the aerogel substrate (101).

2. The production apparatus according to claim 1, wherein a partition body (1a) having a hollow cylindrical shape is further provided in the vessel body (11) and thereby divides the accommodation space into a third cavity (15a) and a fourth cavity (15b) in a radial direction of the vessel body (11), wherein:

the aerogel substrate (101) can be placed in the third cavity (15a) such that the first surface (101a) can be in abutting contact with the separator (1a), the coin (1b) can be disposed in the third cavity (15a) such that the coin (1b) can be in abutting contact with the second surface (101 b);

the separating body (1a) is provided with a plurality of communicating holes (30) so that the third cavity (15a) can communicate with the fourth cavity (15b), wherein, in the case that the aerogel precursor liquid (102) is filled in both the third cavity (15a) and the fourth cavity (15b), the pressure of the third cavity (15a) can be lower than that of the fourth cavity (15b), so that the first surface (101a) can be changed from a state of abutting contact with the separating body (1a) to a state of separating from the separating body (1a) based on the pressure difference between the third cavity (15a) and the fourth cavity (15b) when the pressing force is not present.

3. The production plant according to claim 2, wherein the crushing section (1b) is capable of rotating in the circumferential direction of the vessel (11) with the central axis of the vessel (11) as the center of rotation, thereby applying a periodically existing pressing force to the aerogel substrate (101) in the radial direction of the vessel (11), wherein:

in the presence of the pressing force, the volume of the pores can be reduced to enable the aerogel precursor liquid (102) in the pores to diffuse at least along the radial direction of the kettle body (11) and the circumferential direction of the kettle body (11), wherein the pressure difference can weaken the diffusion of the aerogel precursor liquid (102) in the radial direction of the kettle body (11) in a manner of increasing diffusion resistance, so that the diffusion speed of the aerogel precursor liquid (102) in the radial direction of the kettle body (11) can be reduced.

4. A production plant according to claim 3, characterized in that in case the milling section (1b) comprises at least two milling rollers (11b) having axial directions both parallel to the axial direction of the still body (11), the shape of the edge of the longitudinal section of the milling rollers (11b) parallel to the axial direction of the still body (11) can be defined by a corrugation, wherein:

the first rolling roller (110b) and the second rolling roller (111b) which are adjacent to each other in the circumferential direction of the kettle body (11) can present a dog-tooth staggered state in the axial direction of the kettle body (11), so that under the condition that the first rolling roller (110b) and the second rolling roller (111b) synchronously rotate in the circumferential direction of the kettle body (11) by taking the central axis of the kettle body (11) as a rotation center, the same area of the aerogel base material (101) can present an alternately stressed state of compression and non-compression.

5. The production equipment according to claim 4, wherein a plurality of protrusions (31) each having a shape that can be defined by a circular ring shape are provided on the rolling roller (11b) in the axial direction of the kettle body (11), wherein:

the shape of the cross section of the protrusion (31) parallel to the axial direction of the kettle body (11) can be defined by a semicircle, and two protrusions (31) adjacent to each other in the axial direction of the kettle body (11) can be spaced by a set distance, thereby defining the edge in a corrugated shape;

based on the plurality of bulges (31) distributed at intervals, the section of the aerogel substrate (101) in contact with the bulges (31) in the abutting mode can be in a pressed state in the axial direction of the kettle body (11), and the section of the aerogel substrate (101) between two adjacent bulges (31) can be in an uncompressed state, so that a pressure difference parallel to the axial direction of the kettle body (11) is formed in the aerogel substrate (101), wherein the diffusion speed of the aerogel precursor liquid (102) in the aerogel substrate (101) in the axial direction of the kettle body (11) can be increased based on the pressure difference.

6. The production apparatus according to claim 5, wherein in a case where a vertical distance between a section between two adjacent protrusions (31) of a first lamination roller (110b) and the conveyor belt (14) is a first height, at least one protrusion (31) is provided on a section of a second lamination roller (111b) corresponding to the first height, so that the first lamination roller (110b) and the second lamination roller (111b) can assume the dog-staggered state, wherein:

at a first moment, the first rolling roller (110b) can roll the aerogel substrate (101), wherein at least one protrusion (31) of the first rolling roller (110b) can be in abutting contact with a first set area of the aerogel substrate (101) so that the thickness of the first set area in the radial direction of the kettle body (11) can be reduced, and a second set area of the aerogel substrate (101) adjacent to the first set area in the axial direction of the kettle body (11) can be in an uncompressed state;

at a second moment, the second rolling roller (111b) can roll the aerogel substrate (101), wherein at least one protrusion (31) of the second rolling roller (110b) can be in abutting contact with the second set area, so that the thickness of the second set area in the radial direction of the tank body (11) can be reduced, and the first set area can assume an uncompressed state;

the first time and the second time can be separated by a set time, so that the rolling part (1b) can apply a periodically existing extrusion force to the aerogel base material (101) in the radial direction of the kettle body (11).

7. The production apparatus according to one of claims 1 to 6, further comprising a buffer container (27), wherein:

a kettle cover (12) is detachably arranged on a first end part of the kettle body (11) along the axial direction of the kettle body, a bottom groove (13) is detachably arranged on a second end part of the kettle body (11) opposite to the first end part, wherein a containing space in the second shape can be defined based on the sealing connection of the kettle cover (12) and the kettle body (11) and the sealing connection of the bottom groove (13) and the kettle body (11);

the bottom groove (13) is provided with a liquid outlet (26) for discharging the aerogel precursor liquid (102) from the accommodating space, the kettle body (11) is provided with a liquid inlet (25) for injecting the aerogel precursor liquid (102) into the accommodating space, and the liquid inlet (25) can be communicated with the liquid outlet (26) through the buffer container (27), so that the aerogel precursor liquid (102) in the accommodating space can be transmitted to the buffer container (27) for temporary storage.

8. The production plant according to claim 7, characterized in that a partition (44) is provided on the bottom tank (13) so that the receiving space can be divided into a first cavity (15) and a second cavity (16) in the axial direction of the still body (11), wherein the partition body (1a) can be provided in the first cavity (15) to divide the first cavity (15) into the third cavity (15a) and the fourth cavity (15b) in the radial direction of the still body (11);

the baffle plate (44) is provided with a hole (17) so that the first cavity (15) and the second cavity (16) can be communicated with each other, the hole (17) is provided with a sealing device (18) so that the hole (17) can be in an opening state or a closing state, wherein the hole (17) can be in the opening state under the condition that the pressure of the second cavity (16) is higher than that of the first cavity (15), and the hole (17) can be in the closing state under the condition that the pressure of the second cavity (16) is lower than that of the first cavity (15).

9. The production method of the composite aerogel self-insulation template is characterized by at least comprising the following steps of:

configuring a reaction kettle (1) at least having a containing space capable of presenting a first form communicated with the atmospheric environment or a second form not communicated with the atmospheric environment to contain an aerogel substrate (101) and an aerogel precursor liquid (102), wherein the aerogel precursor liquid (102) can be fused with the aerogel substrate (101) under a set reaction condition to obtain a composite aerogel felt (100), wherein the set reaction condition can be at least defined by a temperature parameter and/or a pressure parameter of the reaction kettle (1);

configuring a plate making platform (2) to realize hot press molding of the composite aerogel felt (100) by applying extrusion force to a covering layer under the condition that the covering layer is arranged on the surface of the composite aerogel felt (100), and thus obtaining a self-heat-insulation template (200), wherein the hot press molding can at least increase the bonding strength of the covering layer and the composite aerogel felt (100);

arranging a conveyor belt (14) arranged between the reaction vessel (1) and the plate making platform (2) to convey the composite aerogel blanket (100) from the reaction vessel (1) to the plate making platform (2), wherein the composite aerogel blanket (100) within the reaction vessel (1) is movable to the conveyor belt (14) based on its own weight with the receiving space in the first configuration;

the reaction vessel (1) is further configured to:

the shape of the kettle body (11) can be defined by a hollow cylinder, and the containing space is defined by the shape of the kettle body (11), wherein the aerogel substrate (101) can be curled in an end-to-end abutting mode to form the hollow cylinder, so that the aerogel substrate (101) can be in abutting contact with the inner wall of the kettle body (11) under the condition that the aerogel substrate is placed into the containing space;

10. The production method according to claim 9, characterized in that the method further comprises the steps of:

a partition body (1a) in a hollow cylindrical shape is provided in the kettle body (11) to partition the accommodation space into a third cavity (15a) and a fourth cavity (15b) in a radial direction along the kettle body (11), wherein: