Background technology
Aeroge is a kind of novel nano-porous materials, because of have ultralow thermal conductivity factor, low-density, low-k,The peculiar performances such as low-refraction and high-specific surface area, high-insulativity, high light transmittance, at calorifics, optics, electricity, chemistry, acoustics etc.Field demonstrates the characteristic of many mysteries, is called as the magical material that changes the world.
The production technology of current aeroge mainly comprises supercritical drying production technology and constant pressure and dry production technology, althoughThrough the development of more than 10 years, production technology was updated and is perfect, and production efficiency improves constantly, no matter but domestic or foreign enterprise of stateIndustry is still step semi-automatic production substantially all, does not also have enterprise can accomplish the fully-automatic production of continous way in industry.Trace it to its cause, the one, supercritical drying needs supercritical, high pressure extraction kettle in producing, and also needs to adopt in constant pressure and dry production technologyWith drying kettle, the products such as aerogel blanket and aerogel plate cannot be carried by pipeline, kettle cover must be opened, and lift by drivingMaterial; The 2nd, workshop section's time of traditional aeroge production technology is longer, and particularly aging workshop section and modification workshop section, often reach 10Several hours and even a couple of days, this brings very large obstruction to the linking of each workshop section. Therefore, current each aeroge manufacturing enterprise is mainly logicalCross the linking of adjusting each production workshop section's number of devices combination and optimizing each workshop section and promote the efficiency that whole aeroge is produced, and thenReduce costs.
The intermittent semi-automatic mode of production, not only hinders the lifting of production efficiency, because workshop section's linking link is many, and on-the-spot behaviourDo workman many, be also unfavorable for the control of product quality, the control of cost of labor, in production process easily because of personnel's maloperation or secondThe security incident that the organic matters such as alcohol are revealed or equipment fault causes constitutes a threat to the guarantee of Field Force's life security.
For overcoming the above problems, the present invention proposes the substitution equipment that a kind of brand-new aeroge is produced fast.
Summary of the invention
Radio-frequency radiation is prepared a substitution equipment for aeroge fast, comprises the outer case 11 of equipment, in equipmentCourage 12, the automaton 13 of equipment, inert gas access arrangement inner bag blast passage 14, the radio-frequency signal generator of equipment15, in equipment inner bag, gas enters the extraction passage 16 of recovery system and three wastes treatment system, the monitoring device 17 of equipment, equipmentTrack conveying device 19 in inner bag, displacer and modifier are from the passage 20 of supplementary material system access arrangement inner bag, and displacement changesProperty waste liquid enters the passage 21 of recovery system and three wastes treatment system; Described automaton 13 and the radio frequency of equipment occurDevice 15 is between the inner bag 12 of equipment outer case 11 and equipment; Metal monitoring device in monitoring device 17 and organic gas prisonSurvey device between the inner bag 12 of equipment outer case 11 and equipment, device for detecting temperature, oxygen concentration monitor and video prisonView apparatus is positioned at equipment inner bag 12; On equipment, work drive motor is fire-proof motor; On inner bag 12, have passage, can with equipment outsideSupplementary material system 2, inert gas system 3, heating system 4, recovery system 5, the three wastes treatment system 6 of enclosing connect or close.
Described supplementary material system, for supplying with raw materials for production and auxiliary material, raw material comprises Jiao Yuan, the fiber reinforcement of aerogeOne or more in material, infrared barrier material, auxiliary material comprises water, diluent, NMF, displacer, modifier, bronsted lowry acids and bases bronsted lowryIn one or more.
Described inert gas system, supplies with inert gas to substitution equipment, guarantees the oxygen in substitution equipmentConcentration is lower than gas fuel burning in substitution equipment or the minimum oxygen content needing of exploding, and inert gas comprises nitrogen, twoOne or more in carbonoxide, helium, argon gas, neon.
Described heating system, is made up of heat exchanger and thermal medium, and wherein thermal medium comprises hot water, steam, conduction oil, skyIn gas, inert gas and heating wire one or more.
Described recovery system, for reclaiming the supplementary material can be recycled and the indifferent gas system of substitution equipmentSystem injects the inert gas of substitution equipment, and way of recycling comprises condensation, evaporation, rectifying, concentrated, absorption, filters, in screeningOne or more modes.
Described three wastes treatment system is for the treatment of the waste liquid not can be recycled producing in production process, waste gas and uselessGu.
Described radio-frequency radiation is prepared the substitution equipment of aeroge fast, need to heat time, can only adopt radio frequencyRadiation heating, also can only heat by heating system, can also adopt radio-frequency radiation heating and heating system heating combination to addHeat.
Described radio-frequency radiation is prepared the substitution equipment of aeroge fast, has radio-frequency signal generator, radio-frequency signal generatorThe operating frequency of sending radio frequency is 300KHz ~ 300GHz, and radio frequency power output is 250W ~ 1000kW.
Described radio-frequency radiation is prepared the substitution equipment of aeroge fast, has monitoring device and automatically controls dressPut; Monitoring device comprises metal monitoring device, device for detecting temperature, oxygen concentration monitor, organic gas monitoring device and looksFrequently one or more in monitoring arrangement, the metal particle size range of metal monitoring device monitoring is for being greater than 0.1mm, and temperature monitoring fillsThe temperature range of putting monitoring is-50 ~ 300 DEG C, and the oxygen concentration scope of oxygen concentration monitor monitoring is 0.01% ~ 25%; Automatically controlDevice processed comprises PLC control system device or DCS control system device or safety interlocking, control circle of automatonFace can be away from working site; Radio-frequency signal generator, equipment work drive motor can be realized by monitoring device and automatonLong-range or on-the-spot automatic control, safety interlocking or stop in emergency.
Described radio-frequency radiation is prepared the substitution equipment of aeroge fast, and the inner bag connecting before and after having, can hinderOther workpieces of substitution equipment in production process outside moisture or acid constituents or alkaline constituents or organic component and inner bagDirectly contact, inner bag material is polymer or pottery or glass, inner bag can be that an entirety can be also multistage splicing.
Described radio-frequency radiation is prepared the substitution equipment of aeroge fast, has track conveying device in inner bag, shouldThe material of conveying device is polymer or pottery or glass, and conveying device can be that a whole piece is also passable in substitution equipmentBe multistage splicing, crawler belt speed is that 0.1m/min ~ 25m/min is adjustable, and track conveying device can be solid, can be also netHole.
Described radio-frequency radiation is prepared the substitution equipment of aeroge fast, has passage on inner bag, can with supplementary materialSystem, inert gas system, heating system, recovery system, three wastes treatment system connect or close.
Described inertia system, the entrance and exit place of preparing fast the substitution equipment of aeroge in radio-frequency radiation establishesBe equipped with inert gas sealing air curtain, all have inert gas to blast passage and extract passage out, drum in each workshop section of substitution equipmentThe air quantity that enters passage and extract passage out substantially quite and maintain device interior in pressure-fired.
Described displacer and modifier are positioned at track conveying device from the passage 20 of supplementary material system access arrangement inner bag19 top, the liquid outlet of passage 20 can, at the lower avris of inner bag, also can be suspended in inner bag, and substitution waste liquid entersThe passage of recovery system and three wastes treatment system is connected with the bottom of equipment inner bag.
Described recovery system, it is former auxiliary that it equals from the gas flow reclaiming in equipment inner bag that supplementary material system injects substantiallyThe summation of the gas flow that the gas flow of material evaporation and inert gas system are injected.
Described supplementary material system, inert gas system, heating system, recovery system and three wastes treatment system except with penetrateRadio-frequency radiation is prepared fast aeroge equipment and is interconnected outside perforation, and said system also has passage to be connected with pump each other, canCarry out the related exchange of material or heat. If heating system can be supplementary material system, inert gas system, recovery system and threeUseless treatment system provides heat, and the supplementary material of processing through recovery system and inert gas revert to supplementary material system and inertia againGas system.
Described radio-frequency radiation is prepared the substitution equipment of aeroge fast, has monitoring device and automatically controls dressPut, significantly promoted the gentle security level control of Automated water of producing.
Described radio-frequency radiation is prepared the inner bag of the substitution equipment of aeroge fast, material be polymer or pottery orGlass, had both played outside the access arrangement inner bag such as organic gas and acid, alkaline constituents in effective isolation inner bag, eliminated safety hiddenSuffer from, improve the working environment of the parts such as radio-frequency signal generator, can also allow radio-frequency signal generator send radio frequency and effectively penetrate and act on gasCorrelative prepared by gel, promotes radio-frequency radiation utilization rate.
Described substitution equipment entrance and exit of preparing fast aeroge in radio-frequency radiation arranges inert gasSealing air curtain, contributes to guarantee present device continous way automated safe production, gets rid of extraneous air and material and passes in and out establishingThe impact of atmosphere in standby inner bag.
Radio-frequency radiation is prepared the effect of playing two aspects, the one, heat effect, the 2nd, chemical action fast to aeroge. CauseIn supplementary material prepared by aeroge, often contain moisture, ethanol diluent isopolarity molecule, at fast-changing radiofrequency fieldUnder (300KHz ~ 300GHz) effect, its polarity orientation changes the variation along with external radio frequency field, causes polar molecule oneselfRevolve exercise effect, now the field energy of radiofrequency field is converted into the heat energy in medium, temperature of charge is raise, and reach radio frequency heatingObject.
The chemical action of radio-frequency radiation is very complicated, also exists a kind ofly not caused by temperature except having fuel factorNon-thermal effect, it can change the kinetic property of reaction, reduces the activation energy of reaction, accelerates the matter and energy of storeroom and hands overChange, and then accelerate course of reaction, significantly shorten the technological reaction time. In the present invention, radio-frequency radiation is being accelerated aeroge preparation displacementThe technical process of modification has played significant effect.
Beneficial effect
Compared with prior art, the substitution equipment that radio-frequency radiation of the present invention is prepared aeroge fast has following significantly excellentGesture.
1) production efficiency significantly promotes. Tradition supercritical drying drying process or constant pressure and dry explained hereafter aeroge often needThe tens of hours time to a couple of days, adopt the present invention can in 1 ~ 5h, complete whole substitution flow processs.
2) can realize continuous full-automatic produces. The present invention overcome traditional substitution equipment can only batch (-type) half fromThe difficult problem that movingization produced, can realize continuous full-automatic and produce, and even realize produce unmanned, will greatly promote aerogeThe automation of industry production level and intellectuality, realize the high-end manufacture of high-end new material.
3) be conducive to control and the production safety guarantee of product quality. Of the present invention increasingly automated, be easy to guarantee productThe uniformity of each batch of quality, greatly reduces workshop site operation personnel, avoids the danger such as personnel's maloperation, minimizing personnel and ethanolThe contact probability of danger chemicals, has greatly promoted site operation personnel's life security guarantee.
4) go for the production of variform aeroge product. Tradition substitution equipment generally only can be used in listThe production of one form product, the present invention goes for aerogel powder, aerogel particle, aerogel blanket, aerogel plate, airsettingThe production of the product of the variform such as adhesive plaster and aerogel, the degree of flexibility of the production of greatly widening and applicability, very sharpIn enterprise's extended products application, saving equipment investment.
Detailed description of the invention
Below in conjunction with accompanying drawing and the displacement of by specific embodiment radio-frequency radiation of the present invention being prepared to aeroge fast changeProperty equipment is further described in more detail.
As shown in Figure 1, radio-frequency radiation is prepared the substitution equipment 9 of aeroge fast, comprises the outer case 11 of equipment, equipmentInner bag 12, the automaton 13 of equipment, inert gas access arrangement inner bag blast passage 14, the radio-frequency signal generator of equipment15, in equipment inner bag, gas enters the extraction passage 16 of recovery system and three wastes treatment system, the monitoring device 17 of equipment, equipmentTrack conveying device 19 in inner bag, displacer and modifier are from the passage 20 of supplementary material system access arrangement inner bag, and displacement changesProperty waste liquid enters the passage 21 of recovery system and three wastes treatment system.
The track conveying device of above-mentioned Fig. 1 can be solid crawler belt or mesh crawler belt, according to product situation difference, crawler belt shapeState preferably has difference. As produce the preferred solid crawler belt of all workshop sections crawler belt of aerogel particle and powder; As produce aerogeFelt or aerogel plate, preferably mesh crawler belt.
As shown in Figure 2, radio-frequency radiation of the present invention is prepared substitution equipment and the peripheral system composition of aeroge fast,Comprise that radio-frequency radiation prepares aeroge equipment 9, supplementary material system 2, inert gas system 3, heating system 4, recovery system fast5, three wastes treatment system 6.
Below in conjunction with a production instance of aerosil felt insulation, further illustrate the present invention:
First carry out the inert gas replacement in equipment inner bag 12. Should be first before feeding intake by inert gas access arrangement inner bagPassage 14, by the carbon dioxide injection device inner bag 12 in inert gas system 3, at the entrance and exit place of equipment 9Inner bag 12 arranges carbon dioxide sealing air curtain blocking-up extraneous air and enters inner bag, and then in opening device inner bag, gas entersThe passage 16 of recovery system and three wastes treatment system, reclaims or three wastes processing the interior gas of equipment inner bag 12, and control blastsThe air output of the intake of passage 14 and passage 16, keeping in equipment inner bag 12 is pressure-fired, when the monitoring device in inner bag 1217 oxygen concentration monitors feedbacks oxygen concentrations lower than 2% time, start supplementary material system 2, start automaton 13 and monitoring dressPut 17, prepare production and feed intake.
First the passage 20 by equipment inner bag will be preheating to the displacement of 60 DEG C through heating system 4 from supplementary material system 2Modifier (mixture of sulfuric acid, ethanol and HMDS composition) imports substitution equipment 9, completes aging gelWhen entering substitution equipment 9, slightly opens material the passage 21 of substitution equipment 9 inner bag 12 bottoms, by putting in inner bag 12Change modifier importing recovery system 5 and recycle, supplement new substitution agent simultaneously from passage 20, substitution agent is at inner bagMore than height in 12 should not have glass mat silica plural gel upper surface 5mm, start penetrating of substitution equipment 9Frequently generator 15 starts the temperature-detecting device of monitoring device 17 simultaneously, and the operating frequency of radio-frequency signal generator 15 is 915MHz, meritRate is between 60 ~ 100kw, guarantees that the temperature of the temperature-detecting device feedback of monitoring device 17 is 45 ~ 70 DEG C, and monitoring device 17 is lookedFrequently the replaced modifier in glass mat silica plural gel surface that monitoring device is seen covers, and after approximately 30 minutes, putsChange modification and complete, gel masses enters drying section.
In production process, the omnidistance work of monitoring device 17, once monitor the organic gas ease in the inner bag 12 of equipment 9Go out, or the interior gas temperature of inner bag exceeds standard or oxygen concentration exceeds standard or monitors metallic particles, automaton 13 will start safetyChain or stop in emergency.
Thus, by the present invention can realize continous way increasingly automated level complete fast aeroge produce putChange modifying process.
Above-described embodiment is only for the inventive concept of the present invention of explaining, but not restriction to rights protection of the present invention,Any simple modification, equivalent variations and modification that every foundation technology of the present invention and method essence are done above embodiment,All still belong in the scope of technology of the present invention and method scheme.