CN102886906B - A kind of ageing method of phenolic foam material and curing equipment thereof - Google Patents
A kind of ageing method of phenolic foam material and curing equipment thereof Download PDFInfo
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Abstract
The ageing method of phenolic foam material and a curing equipment thereof, described ageing method is the phenolic foam material treating slaking with microwave, and then cools phenolic foam material.Equipment of the present invention adopt advantage of the present invention be the moisture of phenolic foam material inside, residual blowing agent, formaldehyde rapid evaporation out, also greatly accelerate the chemical reaction of phenolic foam material inside simultaneously, therefore shorten the time of slaking.Because microwave has penetrability, surface and inside are subject to microwave action, the energy of polar molecule electromagnetic wave absorption, the even heat of generation simultaneously, are conducive to ensureing product quality, not easily shrink situation that is inconsistent, that ftracture or be out of shape.
Description
Technical field
The invention belongs to phenolic resins field, particularly relate to a kind of ageing method and equipment thereof of phenolic foam material.
Background technology
The laudatory title that phenolic foam material have " king of insulation material " is insulated fire acoustic material of new generation.Phenolic foam material belongs to the organic rigid foam product of macromolecule, is to be foamed by thermosetting phenolic resin to form.It has lightweight, fire prevention, chance naked light do not burn, smokeless, nontoxic, without drippage, serviceability temperature is enclosed extensively (-196 DEG C to 200 DEG C), does not shrink, not brittle feature under low temperature environment.Because phenol formaldehyde foam rate of closed hole is high, then thermal conductivity factor low (can lower than 0.030w/mk), heat-proof quality is good, and has certain water-resistance and water vapour permeability, is good heat insulating energy saving material.It can be molded, also can machining, can be made into sheet material, shell and various special-shaped product.Which overcome the shortcoming that original foamed plastics type insulation material is inflammable, thickness, heat are out of shape, remain the features such as original foamed plastics type insulation material light weight, easy construction.
At present, in developed country's phenolic foam material development rapidly, the fields such as building, national defence, foreign trade, storage, the energy have been widely used in.In the sound-insulating foamed plastics that U.S.'s construction industry is used, phenolic materials accounts for 40%; Japan had already set up phenol formaldehyde foam and had popularized association to promote this new material.
After phenolic foam material solidification, generally need to carry out slaking and just can use.Phenolic foam material internal-response on the one hand due to new production is also incomplete, and unstable properties, needs to complete further internal-response by slaking; On the other hand after phenolic foam material solidification, need to remove the materials such as moisture, residual blowing agent and the formaldehyde contained phenolic foam material inside by slaking.
Conventional ageing method has nature slaking and drying room slaking.Nature slaking is large by weather effect, slaking weak effect, and need just to complete internal-response for a long time, such as, phenolic foam heat insulation plate for building needs nature slaking 21 talent to use, therefore take the storage area that manufacturer is a large amount of, also extend delivery date simultaneously, reduce production efficiency.Drying room slaking is that heat is passed to the product treating slaking from outside, and its inside is heated, and promotes course of reaction, and simultaneously inner moisture, residual blowing agent, formaldehyde evaporate by heat out.But drying room slaking also exists a lot of weak point: after drying room slaking, still need to carry out nature slaking 3-5 days; And needing the drying room building huge space, output investment ratio is larger; Due to the thermal conductivity factor of phenolic foam material very low [thermal conductivity factor < 0.032W/ (mK)], when heat from outward appearance to inner essence transmits, there is very large thermograde in phenolic foam material, inside and outside is heated up uneven, easy generation shrinks inconsistent problem, even causes deformation of products or cracking time serious.
Summary of the invention
For this reason, first technical problem to be solved by this invention is that the phenolic foam material of prior art still needs the technical problem of slaking for a long time after hardening, thus proposes ageing method and the equipment of fast phenolic foam material of a kind of curing time.
Second technical problem to be solved by this invention is that prior art easily produces in slaking phenolic foam material process and shrinks technical problem that is inconsistent, that be out of shape or ftracture, thus proposes a kind of the phenolic foam board ageing method and the equipment that are not easy to produce distortion or cracking.
For solving the problems of the technologies described above, the invention provides a kind of ageing method of phenolic foam material, this ageing method comprises: the phenolic foam material treating slaking with microwave, and then cools phenolic foam material.
When carrying out described microwave, described in treat the phenolic foam material of slaking by N number of be successively connected microwave enclosure.
Described N is 2-30.
When carrying out described microwave, in each described microwave enclosure, the temperature of described phenolic materials is kept to be 40-90 DEG C.
When carrying out described microwave, the temperature in the described microwave enclosure of mid portion is higher than the temperature in the described microwave enclosure of front-end and back-end part.
When carrying out described microwave, described in treat that the phenolic foam material of slaking is 1-30min by the time of each described microwave enclosure.
Before carrying out described microwave, infrared hot wind is adopted to heat phenolic foam material.
In the process of microwave slaking or after the microwave completing phenolic foam material, infrared hot wind is adopted to heat phenolic foam material.
A kind of curing equipment of phenolic foam material, comprise a conveyer, the input of described conveyer is for inputting the phenolic foam material treating slaking, the output of described conveyer is for exporting the phenolic foam material after slaking, between the input and the output of conveyer of described conveyer, be disposed with the first microwave suppressor having, microwave radiation device, the second microwave suppressor having and cooling device, described microwave radiation device is connected with microwave control device.
Before first described microwave enclosure, in the end after a described microwave enclosure or be provided with infrared hot wind device between two adjacent described microwave enclosure.
Infrared hot wind device is provided with between the input and described first microwave suppressor having of described conveyer.
Infrared hot wind device is provided with between described cooling device and described second microwave suppressor having or between two described microwave enclosure.
Described microwave radiation device 3 comprises 1-30 microwave enclosure.
Described infrared hot wind device 1 comprises 1-5 infra-red heat bellows.
The buffering area not carrying out described microwave is provided with between described microwave enclosure.
The microwave of described microwave radiation device sends from top.
The top of described microwave enclosure is provided with hydrofuge pipeline, and described hydrofuge pipeline is communicated with described microwave enclosure inside by hydrofuge pipeline control valve.
The top of described microwave enclosure is provided with air draft pipeline.
Described microwave enclosure is provided with observation door.
The inside of described microwave enclosure is provided with temperature measuring equipment.
Described temperature measuring equipment is infrared radiation thermometer.
Conveyer belt is provided with between described feed end to discharge end.
Technique scheme of the present invention has the following advantages compared to existing technology:
(1) the present invention adopts the mode of microwave to carry out maturation process to described phenolic foam material, molecule is in microwave midfield, the energy of the rapid electromagnetic wave absorption of energy, high molecular movement rate is carried by the ultrahigh speed vibration of molecular dipole effect, temperature also raises rapidly, the moisture of phenolic foam material inside, residual blowing agent, formaldehyde rapid evaporation out, also greatly accelerate the chemical reaction of phenolic foam material inside simultaneously, therefore shorten the time of slaking.Carry out slaking by the mode of microwave to described phenolic foam material, microwave is constantly changed direction in space by high-frequency electric field, makes the polar molecule in material do dither along with electric field.Because water and formaldehyde etc. are the materials with polar molecule, polar molecule absorbs the ability of microwave far above other compositions, so first water and formaldehyde equimolecular are heated.The content of the water that product contains and formaldehyde is higher, the ability absorbing microwave is stronger, moisture lower with content of formaldehyde, to the absorption also corresponding minimizing of microwave, when product water and and formaldehyde etc. is variant time, the part that content is higher can absorb more microwave, temperature is high, evaporation is fast, therefore undertaken by microwave in the process of slaking, interiors of products serves a self balancing process of energy, ensure that product slaking is even; Moreover microwave has penetrability, surface and inside are subject to microwave action, the energy of polar molecule electromagnetic wave absorption, the even heat of generation simultaneously, are conducive to ensureing product quality, not easily shrink situation that is inconsistent, that ftracture or be out of shape.
(2) the present invention treats that the phenolic foam material of slaking is by carrying out slaking by N number of microwave enclosure be connected successively, the advantage of its method is, according to the concrete condition of phenolic foam material treating slaking, regulate and control temperature and the power of each microwave enclosure, make the curing time of described phenolic foam material short and prevent to shrink situation that is inconsistent, that ftracture or be out of shape.
(3) the present invention adopts the temperature in the described microwave enclosure of mid portion higher than the advantage of the temperature in the described microwave enclosure of front-end and back-end part to be: enter the phenolic foam material inside of first microwave enclosure containing large quantity of moisture, adopt relatively low temperature, be conducive to the moisture of the inside of phenolic foam material and formaldehyde etc. and form good micro channel in the process of evaporation, progressively transpiring moisture and formaldehyde etc., can avoid the phenolic foam material buckling deformation that the too fast evaporation of moisture causes; The microwave enclosure of mid portion adopts higher temperature, can accelerate the chemical reaction of phenolic foam material inside, removes the moisture of phenolic foam material, residual blowing agent and formaldehyde etc. as soon as possible simultaneously; In the end in a described microwave enclosure, phenolic foam material substantially complete slaking, can lower temperature be adopted.
(4) in the present invention, the advantage of infrared heating device was provided with: by infrared heating device to also treating that the phenolic foam material of slaking preheats before first described microwave enclosure, when carrying out microwave, surface and inner thermograde can be reduced, prevent inside and outside moisture evaporation rate inconsistent cause cause buckling deformation, also shorten the curing time simultaneously, improve slaking efficiency.
(5) phenolic foam material curing equipment of the present invention, comprise input and output, between the input and the output of conveyer of described conveyer, be disposed with the first microwave suppressor having, microwave radiation device, the second microwave suppressor having and cooling device, described microwave radiation device is connected with microwave control device; Adopt the said equipment to carry out microwave ripening to described phenolic foam material, the temperature of phenolic foam material raises rapidly, thus greatly accelerates inner chemical reaction, also accelerates the evaporation of the material such as water and formaldehyde, shortens the time of slaking; Moreover undertaken in the process of slaking by microwave, the number of interiors of products moisture and content of formaldehyde can serve a self balancing process of energy, ensure that product slaking is even; And microwave has penetrability, surface and inside are subject to microwave action, the energy of polar molecule electromagnetic wave absorption, the even heat of generation simultaneously, are conducive to ensureing product quality, not easily shrink situation that is inconsistent, that ftracture or be out of shape.In addition, the front-end and back-end of described microwave radiation device are provided with microwave suppressor having, play the effect preventing microwave from overflowing, reduce the microwave pollution to outside.Further, described in treat that the input of slaking phenolic foam material is communicated with to output by conveyer, simplify maturing process by the streamline slaking mode of tunnel type, improve slaking efficiency.
(6) phenolic foam material curing equipment of the present invention, infrared hot wind device is provided with between the input and described first microwave suppressor having of described conveyer, infrared hot wind device is adopted to preheat phenolic foam material, can ensure like this when carrying out microwave, surface and inner thermograde can be reduced, prevent inside and outside moisture evaporation rate inconsistent cause cause buckling deformation, simultaneously also shorten the curing time, improve slaking efficiency.
(7) the present invention adopts between microwave enclosure, is provided with the buffering area not carrying out described microwave, buffering area can be empty van body or the microwave enclosure for being turned off by microwave, when phenolic foam material enters above-mentioned casing, no longer it is heated, therefore hot overshoot can be prevented, in the scope that the temperature of phenolic foam material is remained on required for slaking.
(8) microwave of microwave radiation device of the present invention sends from top, the microwave uniformity of feed-in microwave enclosure is good, power attenuation is little, the efficiency of slaking is high, but traditional microwave device launched microwave from the side, the intensive uniformity of its microwave is relatively poor, easily produces local hot spot, cause foam burst or occur ' heartburn " and phenomenon.
(9) phenolic foam material curing equipment of the present invention, the top of described microwave enclosure is provided with hydrofuge pipeline, described hydrofuge pipeline is communicated with described microwave enclosure inside by hydrofuge pipeline control valve, regulate the humidity of described microwave enclosure inside by controlling described control valve, prevent phenolic foam material be same as humidity excessive and produce distortion.
(10) the present invention adopts and be provided with air draft pipeline above described microwave enclosure, the air circulation of described microwave enclosure inside can be made like this, further accelerating maturing, shorten the time needed for slaking, and air draft pipeline efficiently solves the shortcoming that water easily leaks in the water-cooling pattern of traditional microwave device.
(11) the present invention adopts in microwave casing and is provided with temperature measuring equipment, the temperature of the inside of described microwave enclosure can be measured so in real time, according to temperature signal and the preset temperature of actual measurement, microwave control device can regulate the size of the power of microwave enclosure voluntarily, and then controls the temperature in microwave enclosure.
(12) phenolic foam material curing equipment of the present invention, described microwave enclosure is provided with observation door, is convenient to the change observing product, controls in time.
(13) phenolic foam material curing equipment of the present invention, conveyer belt is provided with between described feed end to discharge end, can will treat that the phenolic foam material of slaking is placed in feed end like this, by conveyer belt by corresponding equipment, until complete slaking and exported by discharge end, by the slaking mode of streamline, simplify the process of slaking, improve slaking efficiency, and package unit can realize seamless link with cystosepiment tinuous production, effectively shortens the curing time.
Accompanying drawing explanation
In order to make content of the present invention be more likely to be clearly understood, below according to a particular embodiment of the invention and by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is the schematic diagram of phenolic foam material curing equipment of the present invention.
In figure, Reference numeral is expressed as: 1-infrared hot wind device, 2-first microwave suppressor having, 22-second microwave suppressor having, 3-microwave radiation device, 4-hydrofuge pipeline, 5-hydrofuge pipeline control valve, 6-air draft pipeline, 7-observes door, 8-cooling device, 9-microwave control device, the input of 10-conveyer, the output of 100-conveyer, 11-conveyer.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described, but it should be noted that these embodiments only for illustration of method and apparatus of the present invention, and can not by limit of the present invention in a bit.
Below will the invention will be further described by specific embodiment.
Embodiment 1
(1) curing equipment
As shown in Figure 1, curing equipment comprises a conveyer 11, it is conveyer belt herein, the input 10 of described conveyer is for inputting the phenolic foam material treating slaking, the output 100 of described conveyer is for exporting the phenolic foam material after slaking, the first microwave suppressor having 2 is disposed with between the input 10 and the output 100 of conveyer of described conveyer, microwave radiation device 3, second microwave suppressor having 22 and cooling device 8, described microwave radiation device 3 is connected with microwave control device 9, the top of described microwave enclosure is provided with hydrofuge pipeline 4, described hydrofuge pipeline 4 is communicated with described microwave enclosure inside by hydrofuge pipeline control valve 5, the aperture of described hydrofuge pipeline control valve 5 is 1/4, the top of described microwave enclosure is provided with air draft pipeline 6, described microwave control device 9 is microwave switch board.
Described microwave radiation device 3 is six microwave enclosure, when carrying out radiation, microwave is sent by the top of described microwave enclosure, in described microwave enclosure, infrared radiation thermometer is installed, temperature signal is passed to microwave switch board by infrared radiation thermometer, and described microwave switch board regulates the watt level of each microwave enclosure automatically according to the temperature signal of actual measurement and preset temperature; Described cooling device 8 can adopt air-cooled mode.The first microwave suppressor having 2 and the second microwave suppressor having 22 that are arranged on the front-end and back-end of microwave radiation device 3 pollute to prevent microwave from overflowing.This equipment de-sign is the streamline form of tunnel type, by transmitting the product bringing transmission to treat slaking, output 100 from conveyer after completing product slaking by pipeline exports the phenolic foam material after slaking, this, simplifies the operating process of slaking, improves slaking efficiency.In order to improve the slaking efficiency of product further, infrared hot wind device 1 is provided with between the input 10 and described first microwave suppressor having 2 of described conveyer, infrared hot wind device 1 described herein is two infra-red heat bellows, and infrared hot wind herein can be produced by infrared heating pipe and blower fan; In addition, for the ease of observing the situation of described microwave enclosure inside, described microwave enclosure being provided with and observing door 7.
(2) curing process of phenolic foam material
The curing equipment in the present embodiment (1) is used to carry out slaking to phenolic foam heat insulation plate, concrete steps are: phenolic foam heat insulation plate at the uniform velocity advances on described conveyer belt, enter in infra-red heat bellows by the input 10 of described transmitting device, after preheating, then microwave enclosure is entered through the first microwave suppressor having 2, microwave ripening is carried out in described microwave enclosure, after microwave completes, product enters cooling device 8 and carries out cooling processing after the second microwave suppressor having 22, cooled product completes slaking, exported by the output 100 of transmitting device, enter packing stage and carry out packaging process.Wherein, the temperature in infra-red heat bellows is 90 DEG C; Along the direction of input 10 to output 100, the preset temperature of each microwave enclosure is 80 DEG C; The microwave frequency of the microwave of each microwave enclosure is 2450MHz; Phenolic foam heat insulation plate is 2min by the time of infrared hot wind device, and the time that phenolic foam heat insulation plate is needed by each microwave enclosure is 2min, and the total time that completing whole maturing process needs is 20min.
Detect the indices of the phenolic foam heat insulation plate after the present embodiment slaking, concrete indices is in table 1.
Embodiment 2
(1) curing equipment
Adopt the curing equipment identical with (1) in embodiment 1, difference is: microwave radiation device 3 is a microwave enclosure, between the input 10 and the first microwave suppressor having 2 of described conveyer, do not have infrared hot wind device.
(2) curing process of phenolic foam material
The curing equipment in the present embodiment (1) is used to carry out slaking to phenolic foam heat insulation plate, concrete steps are: phenolic foam heat insulation plate enters the first microwave suppressor having 2 by the input 10 of described transmitting device, and then enter microwave enclosure, microwave ripening is carried out in microwave enclosure, after microwave completes, product enters cooling device 8 and carries out cooling processing after the second microwave suppressor having 22, cooled product completes slaking, exported by the output 100 of transmitting device, enter packing stage and carry out packaging process.Wherein, the preset temperature of microwave enclosure is 70 DEG C, and phenolic foam heat insulation plate is 20min by the time needed for microwave enclosure, and the total time that completing whole maturing process needs is 23min.
Embodiment 3
(1) curing equipment
Adopt the curing equipment identical with (1) in embodiment 1, difference is: microwave radiation device 3 is two microwave enclosure.
(2) curing process of phenolic foam material
Use the curing equipment in the present embodiment (1) to carry out slaking to phenolic foam heat insulation plate, concrete steps adopt identical with the method for (2) in embodiment 1, and difference exists: wherein, and the temperature in infra-red heat bellows is 80 DEG C; Along the direction of input 10 to output 100, the preset temperature setting each microwave enclosure is successively 60 DEG C and 70 DEG C; Be 30min by the time of infra-red heat bellows, phenolic foam heat insulation plate is 30min by the time that each microwave enclosure needs; The total time that completing whole maturing process needs is 93min.
Detect the indices of the phenolic foam heat insulation plate after the present embodiment slaking, concrete indices is in table 1.
Embodiment 4
(1) curing equipment
Adopt the curing equipment identical with (1) in embodiment 1, difference is: microwave radiation device 3 is 16 microwave enclosure.
(2) slaking of phenolic foam material
Use the curing equipment in the present embodiment (1) to carry out slaking to phenolic foam heat insulation plate, concrete steps adopt identical with the method for (2) in embodiment 1, and difference exists: wherein, and the temperature in infra-red heat bellows is 55 DEG C; Along the direction of input 10 to output 100, set the 1st preset temperature to the 3rd microwave enclosure successively and be respectively 40 DEG C, 55 DEG C, 70 DEG C, 4th to 7 and the 11st preset temperature to the 14th microwave enclosure are 80 DEG C, 8th preset temperature to the 10th microwave enclosure is 90 DEG C, and the 15th preset temperature to the 16th microwave enclosure is respectively 70 DEG C, 65 DEG C; Phenolic foam heat insulation plate is 1min by the time of infrared hot wind device, and the time that phenolic foam heat insulation plate is needed by each microwave enclosure is 1min, and the total time that completing whole maturing process needs is 20min.
Detect the indices of the phenolic foam heat insulation plate after the present embodiment slaking, concrete indices is in table 1.
Embodiment 5
(1) curing equipment
Adopt the curing equipment identical with (1) in embodiment 1, difference is: microwave radiation device 3 is 10 microwave enclosure.
(2) slaking of phenolic foam material
Use the curing equipment in the present embodiment (1) to carry out slaking to phenolic foam heat insulation plate, concrete steps adopt identical with the method for (2) in embodiment 1, and difference exists: wherein, and the temperature in infra-red heat bellows is 85 DEG C; Along the direction of input 10 to output 100, set the 1st preset temperature to the 3rd microwave enclosure successively and be respectively 60 DEG C, 65 DEG C, 70 DEG C, 4th preset temperature to the 7th microwave enclosure respectively is 70 DEG C, 70 DEG C, 70 DEG C, 70 DEG C, and the 8th preset temperature to the 10th microwave enclosure respectively is 65 DEG C, 65 DEG C, 60 DEG C; Phenolic foam heat insulation plate is 1min by the time of infrared hot wind device, and the time that phenolic foam heat insulation plate is needed by each microwave enclosure is 1min, and the total time that completing whole maturing process needs is 12min.
Detect the indices of the phenolic foam heat insulation plate after the present embodiment slaking, concrete indices is in table 1.
Embodiment 6
(1) curing equipment
Adopt the curing equipment identical with (1) in embodiment 1, difference is: microwave radiation device 3 is 30 microwave enclosure.
(2) slaking of phenolic foam material
The curing equipment in the present embodiment (1) is used to carry out slaking to phenolic foam material, concrete steps adopt identical with the method for (2) in embodiment 1, difference exists: wherein, treat that the material of slaking is Phenolic thermoset shell, Phenolic thermoset shell, phenolic resins is made through foaming, is widely used in pipe insulation, thickness 50mm, density is 53kg/m
3; Temperature in infra-red heat bellows is 60 DEG C; Along the direction of input 10 to output 100, set the 1st preset temperature to the 3rd microwave enclosure successively and be respectively 60 DEG C, 65 DEG C, 70 DEG C, 4th preset temperature to the 27th microwave enclosure is 80 DEG C, 29th preset temperature to the 30th microwave enclosure is respectively 75 DEG C, 70 DEG C, 28th microwave enclosure is buffering area, not preset temperature, does not also carry out microwave; Phenolic foam heat insulation plate is 1min by the time of infrared hot wind device, and the time that phenolic foam heat insulation plate is needed by each microwave enclosure is 1min, and the total time that completing whole maturing process needs is 32min.
Detect the indices of the phenolic foam heat insulation plate after the present embodiment slaking, concrete indices is in table 1.
Comparative example 1
Treat in embodiment 1 that the phenolic foam heat insulation plate of slaking places 21 days at ambient temperature.
Detect the indices of the phenolic foam heat insulation plate after the slaking of this comparative example, concrete indices is in table 1.
Comparative example 2
Treat in embodiment 1 that the phenolic foam heat insulation plate of slaking is placed in drying room on shelf, keep constant temperature 60 DEG C, humidity 50%, places 72 hours.Then take out, be positioned in room temperature natural environment, carry out nature slaking.
Detect the indices of the phenolic foam heat insulation plate after the slaking of this comparative example, concrete indices is in table 1.
Comparative example 3
Material in embodiment 6 after slaking places 21 days at ambient temperature.
Comparative example 4
Treat in embodiment 6 that the phenolic foam heat insulation plate of slaking adopts the method for drying room slaking, and then at room temperature slaking 3 days.
Test case 1
Phenolic foam material in Example 1-6 and comparative example 1-4 before and after slaking carries out tensile strength and compressive strength test, and method of testing is as follows:
Tensile strength is tested, and carries out according to the method for " JG 149-2003 expansion joints bellows external thermal insulation system ".
Compressive strength is tested, and carries out according to the method for " GB/T 8813-2008 rigid foam compression performance mensuration ".
Table 1
As can be seen from the above experimental data, after microwave ripening, tensile strength and the compression of material are all greatly improved; Compared with natural slaking, the phenol formaldehyde foam of microwave ripening can reach equal or close tensile strength and compressive strength, but the time needed for microwave ripening shortens greatly, just can complete within the very short time, improves slaking efficiency; Compared with drying room slaking, the phenol formaldehyde foam of microwave ripening can not shrink situation that is inconsistent, that be out of shape or ftracture, and shortens the curing time.
The number of microwave enclosure, can according to the performance of physics and chemistry treating slaking phenolic foam material, and the factor such as the size of material pace, casing on streamline carries out suitable selection, therefore, the number of microwave enclosure of the present invention is not limited to number cited in embodiment, can select as the case may be.
When the microwave that phenolic foam material carries out, according to the temperature difference of material inside and outside, infrared hot wind device can be set between any two described microwave enclosure, infrared hot wind heating be carried out to phenolic foam material, thus reduces the temperature difference of inside and outside; After the microwave carried out at phenolic foam material completes, also can according to the temperature difference of the situation of microwave ripening and inside and outside, infrared hot wind device can be set between described cooling device and described second microwave suppressor having, infrared hot wind heating is carried out to phenolic foam material, therefore, in the present invention, the setting of infra-red heat bellows is not limited to arrange infra-red heat bellows in embodiment between described input 10 and described first microwave suppressor having 2, can arrange as the case may be.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among the protection domain of the invention.
Claims (13)
1. an ageing method for phenolic foam material, is characterized in that this ageing method comprises: the phenolic foam material treating slaking with microwave, and then cools phenolic foam material; When carrying out described microwave, described in treat the microwave enclosure that the phenolic foam material of slaking is connected successively by N; Temperature in the described microwave enclosure of mid portion is higher than the temperature in the described microwave enclosure of front-end and back-end part.
2. method according to claim 1, is characterized in that: described N is 2-30.
3. method according to claim 1 and 2, is characterized in that: when carrying out described microwave, and the temperature in each described microwave enclosure is 40-90 DEG C.
4. method according to claim 3, is characterized in that: when carrying out described microwave, described in treat that the phenolic foam material of slaking is 1-30 min by the time of each described microwave enclosure.
5. method according to claim 4, is characterized in that: before carrying out described microwave, adopts infrared hot wind to heat phenolic foam material.
6. the curing equipment of a phenolic foam material, comprise a conveyer (11), the input (10) of described conveyer is for inputting the phenolic foam material treating slaking, the output (100) of described conveyer is for exporting the phenolic foam material after slaking, it is characterized in that: between the input (10) and the output (100) of conveyer of described conveyer, be disposed with the first microwave suppressor having (2), microwave radiation device (3), second microwave suppressor having (22) and cooling device (8), described microwave radiation device (3) is connected with microwave control device (9), described microwave radiation device (3) comprises 1-30 microwave enclosure, the buffering area not carrying out described microwave is provided with between described microwave enclosure, when carrying out microwave ripening, the temperature in the described microwave enclosure of mid portion is higher than the temperature in the described microwave enclosure of front-end and back-end part.
7. according to the equipment described in claim 6, it is characterized in that: between the input (10) and described first microwave suppressor having (2) of described conveyer, be provided with infrared hot wind device (1).
8. the equipment according to claim 6 or 7, is characterized in that: the microwave of described microwave radiation device sends from top.
9. equipment according to claim 8, is characterized in that: the top of described microwave enclosure is provided with hydrofuge pipeline (4), and described hydrofuge pipeline (4) is communicated with described microwave enclosure inside by hydrofuge pipeline control valve (5).
10. equipment according to claim 9, is characterized in that: the top of described microwave enclosure is provided with air draft pipeline (6).
11. equipment according to claim 9 or 10, is characterized in that: described microwave enclosure is provided with and observes door (7).
12. equipment according to claim 11, is characterized in that: the inside of described microwave enclosure is provided with temperature measuring equipment.
13., according to the equipment described in claim 12, is characterized in that: described temperature measuring equipment is infrared radiation thermometer.
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| CN110405933A (en) * | 2019-08-31 | 2019-11-05 | 乌鲁木齐益好天成新型节能材料有限公司 | Microwave, Near-infrared Double radiate SG fireproof heat insulation plate of outer wall production line |
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| KR100349893B1 (en) * | 2000-08-22 | 2002-08-24 | 안선태 | Method of high-density compressing for pressed forming product using powder material |
| US20090078370A1 (en) * | 2004-08-31 | 2009-03-26 | Vladislav Sklyarevich | Method of separating non-metallic material using microwave radiation |
| CN2932256Y (en) * | 2006-07-28 | 2007-08-08 | 佛山市德科机电设备有限公司 | Microwave continuously drying production line |
| CN201138123Y (en) * | 2007-11-28 | 2008-10-22 | 天水华圆制药设备科技有限责任公司 | Tunnel type multi-layered microwave energy feedback maturing drying apparatus |
| CN101717514B (en) * | 2009-12-10 | 2011-12-28 | 江苏丰彩新型建材有限公司 | Modified phenolic resin, foamed material thereof and method for preparing same |
| CN202195656U (en) * | 2011-07-19 | 2012-04-18 | 济南圣泉集团股份有限公司 | Drying apparatus for thermal insulating phenolic aldehyde foam boards |
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Denomination of invention: Method and equipment for curing phenolic aldehyde foam material Effective date of registration: 20160302 Granted publication date: 20150805 Pledgee: Industrial Commercial Bank of China Ltd Zhangqiu branch Pledgor: Shengquan Group Co., Ltd., Ji'nan City Registration number: 2016990000130 |
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Date of cancellation: 20190709 Granted publication date: 20150805 Pledgee: Industrial Commercial Bank of China Ltd Zhangqiu branch Pledgor: Shengquan Group Co., Ltd., Ji'nan City Registration number: 2016990000130 |