CN100417501C - Method and devcie for making heat-insulation fireproof calcium silicate board - Google Patents
Method and devcie for making heat-insulation fireproof calcium silicate board Download PDFInfo
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- CN100417501C CN100417501C CNB021310173A CN02131017A CN100417501C CN 100417501 C CN100417501 C CN 100417501C CN B021310173 A CNB021310173 A CN B021310173A CN 02131017 A CN02131017 A CN 02131017A CN 100417501 C CN100417501 C CN 100417501C
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- 238000000034 method Methods 0.000 title claims abstract description 52
- 238000009413 insulation Methods 0.000 title claims abstract description 24
- 239000000378 calcium silicate Substances 0.000 title claims abstract description 22
- 229910052918 calcium silicate Inorganic materials 0.000 title claims abstract description 22
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 43
- 238000001914 filtration Methods 0.000 claims abstract description 28
- 238000001125 extrusion Methods 0.000 claims abstract description 23
- 230000008569 process Effects 0.000 claims abstract description 10
- 238000005520 cutting process Methods 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 238000000227 grinding Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 26
- 238000000465 moulding Methods 0.000 claims description 21
- 239000004033 plastic Substances 0.000 claims description 17
- 239000000843 powder Substances 0.000 claims description 17
- 238000003756 stirring Methods 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 239000000920 calcium hydroxide Substances 0.000 claims description 11
- 235000011116 calcium hydroxide Nutrition 0.000 claims description 11
- 239000000835 fiber Substances 0.000 claims description 10
- 239000000292 calcium oxide Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- 239000011575 calcium Substances 0.000 claims description 8
- 235000013312 flour Nutrition 0.000 claims description 8
- 239000000377 silicon dioxide Substances 0.000 claims description 8
- 239000010456 wollastonite Substances 0.000 claims description 8
- 229910052882 wollastonite Inorganic materials 0.000 claims description 8
- 239000003595 mist Substances 0.000 claims description 7
- 229910021419 crystalline silicon Inorganic materials 0.000 claims description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 5
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000004571 lime Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 4
- 239000000047 product Substances 0.000 claims description 4
- 239000011324 bead Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000004945 emulsification Methods 0.000 claims description 3
- 239000002244 precipitate Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 230000018044 dehydration Effects 0.000 claims description 2
- 238000006297 dehydration reaction Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000011265 semifinished product Substances 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 2
- 230000001276 controlling effect Effects 0.000 claims 1
- 239000010720 hydraulic oil Substances 0.000 claims 1
- 238000003754 machining Methods 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 238000003825 pressing Methods 0.000 abstract description 3
- 239000002002 slurry Substances 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 238000001723 curing Methods 0.000 abstract description 2
- 238000009856 non-ferrous metallurgy Methods 0.000 abstract description 2
- 238000004321 preservation Methods 0.000 abstract description 2
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- 238000013019 agitation Methods 0.000 abstract 1
- 238000000605 extraction Methods 0.000 abstract 1
- 206010022000 influenza Diseases 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 abstract 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 17
- 235000012255 calcium oxide Nutrition 0.000 description 8
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 7
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 6
- 239000002956 ash Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 238000004079 fireproofing Methods 0.000 description 4
- 239000010453 quartz Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000706 filtrate Substances 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 235000015111 chews Nutrition 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 239000002557 mineral fiber Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 239000005997 Calcium carbide Substances 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 244000082204 Phyllostachys viridis Species 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- 239000004113 Sepiolite Substances 0.000 description 1
- 229910021417 amorphous silicon Inorganic materials 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 210000000085 cashmere Anatomy 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 229910052624 sepiolite Inorganic materials 0.000 description 1
- 235000019355 sepiolite Nutrition 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000007039 two-step reaction Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/18—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mixtures of the silica-lime type
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
The present invention relates to a method and a device for making heat-insulation fireproof calcium silicate boards. The method is characterized in that slurry is made in 80 DEGC to 140 DEGC of a gelling for 3 to 30 hours as required for gelling reaction without agitation; the slurry obtained in the reaction input in a machine making board is made into boards which are processed into finished products after steam curing, drying, cutting and grinding. Four different devices and methods are used in the process of making boards; the first method of using a pressure forming device for pressing, filtering and milling; the second method of using an extrusion forming device for pressing, filtering and milling; the third method of using a suction and filtration forming device with a net cage for extraction; the forth method of a filtration forming and suction conveyor device with a slab for rolling. The four devices for making boards and four method for making boards with the four devices are adopted according to different purposes of the heat-insulation fireproof calcium silicate boards. The heat-insulation fireproof calcium silicate boards made by the method and the present of the present invention can be used in buildings such as the covering materials of steel structures, fireproof wind pipes, fireproof flues and fireproof cable grooves, and the blast grooves, spouts, etc. of colored metallurgy industry, and used for the heat-insulation and the heat preservation of industrial furnaces.
Description
(1), technical field:
The present invention relates to a kind of manufacture method and device of calcium silicate thermal insulation PLASTIC LAMINATED.Belong to the extraordinary building materials technology field of heat-insulating, fire-preventing.
(2), background technology:
Existing calcium silicate thermal insulation PLASTIC LAMINATED is by cement, and three kinds or more kinds of raw material of doing in diatomite, quartz, pulverized limestone, coal ash, asbestos, the mica etc. according to a certain ratio, are used wet-process moulding, and static maintenance forms.This plate bulk density is big, the mechanical strength height, and heat resisting temperature is low, and general density is 1.0-1.3g/cm
3, rupture strength is 4～15MPa, and heat resisting temperature is no more than 650 ℃, and advantage is the intensity height, and breadth is big, and cost is low, but as fire proofing material, weak point has 2 points: one, heat resisting temperature is too low, does not claim the PLASTIC LAMINATED what is real; Two, density is big, and heat conduction is fast.The objective of the invention is to overcome the deficiency of above-mentioned prior art and heat-insulating fire-proofing material, make and satisfy heat resisting temperature, and a whole set of production equipment is provided at the calcium silicate thermal insulation PLASTIC LAMINATED more than 1000 ℃.
(3), summary of the invention:
For reaching above-mentioned purpose, it is on 98102760.7 the basis that the name that the present invention proposed on July 3rd, 1998 is called " a kind of manufacture method of calcium silicate thermal insulation fireproof material " patent No., moulding again and transformation through process modification and production equipment, produced heatproof more than 1000 ℃, rupture strength surpasses the calcium silicate thermal insulation PLASTIC LAMINATED of 2MPa.
Technical solution of the present invention is as follows: a kind of method for making of calcium silicate thermal insulation PLASTIC LAMINATED is characterized in that:
1) silica flour is added water mill to silica flour in grinding machine and all pass through 10000-hole sieve;
2) the non-crystalline silicon micro mist adds the water dispersed with stirring in disperseing the pond, and rotating speed 80-400 rev/min, time 10-120 minute;
3) calcareous material adds water and is digested to milk of lime in lime emulsification pond;
4) mixed slip is placed on CaO/SiO in the dosing chamber
2Mol ratio be that Ca/Si is 0.95-1.05;
5) adding accounts for the fiber that has disperseed of total amount 2-8% and the wollastonite in powder of 0-20% in kiln basin; Stir;
6) with the input of the slip in dosing chamber gelatinization tank, Gu add water to water/weight ratio is 2-10, with Steam Heating, in 80-140 ℃ of scope, kept 3-30 hour, carry out gelatinization reaction, in this process, stir all the time, control makes and does not material suspendedly precipitate, and is generally 40-400 rev/min, gel ends, and need be cooled to normal pressure;
7) the above slip that react is imported laminator, makes sheet material, and with the press filtration extrusion forming method of mixing, this method is: slip is extruded slab again after the vacuum muller mixes after the plate and frame filter press press filtration dewaters, be compressed to semi-finished product on press;
8) above-mentioned slab is contained in and advances steam-cured still on the dolly, adds to be pressed under the 1.5-2.8Mpa pressure to keep 10-30 hour, after the cooling, opens the still ejecting plate;
9) going out the still wet plate is below 5% 100 ℃-180 ℃ dry kiln drying to water content;
10) sheet material after the oven dry is finished product after bead cutter and sander processing.
Characteristics of the present invention:
1) raw materials used is the basis and the key factor of producing heat resisting temperature calcium silicate thermal insulation PLASTIC LAMINATED more than 1000 ℃.
2) used non-crystalline silicon micro mist purity height, active high, can reduce reaction temperature, shorten the reaction time, enhance productivity.
3) used wollastonite in powder is a natural mineral fiber, has stable high-temperature performance, and can increase the intensity of sheet material, improves high-temperature behavior.
4) gel operation is in order to improve the workability of material, reduces the critical process of sheet material bulk density, and the gelatinization reaction degree is dark more, mass expanded is big more, and with shallow the comparing of gel degree, the plate intensity of making equal densities is big more, in like manner, make the plate of same intensity, bulk density is more little.
5) four kinds of plate-making methods of the present invention, though stream slurry is copied to follow the example of when other sheet material making sheet and adopted, nobody adopts in the making sheet of calcium silicate thermal insulation PLASTIC LAMINATED, and the applicant again in addition many places improve.
6) steam curing process of used two step reaction methods is that sheet material obtains sufficient intensity and heat-resisting critical process more than 1000 ℃.
The obtained advantage of the present invention with heat-insulating fire-proofing plate:
1) be noninflammability A level material, long-term heat resisting temperature reaches more than 1000 ℃, is that heat resisting temperature is the highest in the calcium silicate thermal insulation PLASTIC LAMINATED.
2) as fire-proof board, density is little, at 400-1000kg/m
3Between, and the mechanical strength height, rupture strength is between 2-10MPa.
3) thermal conductivity factor is low, according to different bulk densities, and thermal conductivity factor 0.07-0.12W/mK, thereby be subjected to girder steel (post) the fire endurance time of its protection long, and according to different-thickness, fire endurance 1.5-4 hour.
4) nontoxic, do not produce pernicious gas during the high temperature heating, physicochemical property is stable, and appearance and size and various performance are constant after long-term the use, and easy construction can be cut, can saw, can be followed closely.
The main application of the prepared calcium silicate thermal insulation PLASTIC LAMINATED of the present invention:
1) is used as steel structure fireproofing coating sheet material in the building fireproof plate, fire prevention airduct, fire prevention flue and fireproof cable etc.
2) as the heat-insulation and heat-preservation of Industrial Stoves.
3) be used as the guiding gutter of nonferrous metallurgy industry, stream is chewed etc.
(4), description of drawings
Fig. 1 always schemes for process equipment of the present invention, comprises the 1st kind of device for board manufacture press filtration extrusion forming device construction figure that mixes.
Fig. 2 is the 2nd a kind of device for board manufacture, the press filtration extrusion molding apparatus structural map that mixes.
Fig. 3 is the 3rd a kind of device for board manufacture, and net cage is copied and got filtering molding device construction figure.
Fig. 4 is the 4th a kind of device for board manufacture, and slab roll extrusion filtering molding and slab are inhaled and sent device construction figure.
Fig. 5 is the 4th kind of slab roll extrusion filtering molding and the slab structural map of inhaling the thin A of portion send the slab filtering molding device in the device in the device for board manufacture.
(5) specific embodiment
Technology of the present invention is as follows: referring to Fig. 1
1, raw material
1.1 calcareous raw material generally is caustic lime block or powder, also can be slaked lime powder, calcium carbide mud.CaO content is not less than 85% in the quick lime, and CaO content is not less than 65% in the calcium hydroxide.
1.2 the non-crystalline silicon micro mist is as silicon ash, silica flour, white carbon, rice hull ash, SiO
2Content is not less than 88%, Al
2O
3Content is no more than 3%.
1.3 silica flour also is Cab-O-sil, is vein quartz, quartzy sandstone or quartz sand, is broken into powder, general granularity below 3mm, SiO
2Content is not less than 95%.
1.4 wollastonite in powder, the natural wollastonite of 60～325 order needle-likes.
1.5 fiber, natural organic fiber, as cotton, fiber crops, wood pulp, bamboo pulp, straw pulp, natural mineral fiber is as sepiolite cashmere.
2, method for making: referring to Fig. 1
2.1 being added water mill to silica flour in grinding machine, silica flour all passes through 10000-hole sieve.
2.2 the non-crystalline silicon micro mist adds the water dispersed with stirring, 80～400 rev/mins of rotating speeds, 10～120 minutes time.
2.3 adding water, calcareous material is digested to milk of lime, also can be directly with calcium lime powder or slaked lime powder batching.
2.4 quartzy fine powder and non-crystalline silicon micro mist use separately or mix with arbitrary proportion, add milk of lime or slaked lime powder or calcium lime powder, mixed slip CaO/SiO
2Mole ratio be that Ca/Si is 0.95～1.05.
Account for the fiber that has disperseed of total amount 2-8% and 0～20% wollastonite in powder 2.5 in above-mentioned slip, add, stir.
2.6 above-mentioned slip is added gelatinization tank, Gu add water to water/weight ratio is 2～10, with Steam Heating, in 80 ℃～140 ℃ scopes, kept 3～30 hours, carry out gelatinization reaction, in this process, stir all the time, control makes and does not material suspendedly precipitate, and is generally 40～400 rev/mins, gel ends, and need be cooled to normal pressure.
2.7 above slip input laminator or making sheet unit are made sheet material, laminator or making sheet unit have four kinds, corresponding to four kinds of equipment four kinds of plate-making methods are arranged, referring to Fig. 1-5:
1. the press filtration extrusion forming method of mixing: slip dewaters through filter press, extrudes slab again after the vacuum muller mixes, and is pressed into sheet material on press.
2. the press filtration extrusion moulding that mixes: slip dewaters through filter press, and after the vacuum muller mixed, extruding roll forming on extrusion shaping machine was sheet material again.
3. net cage is copied the filtering molding method of getting: slip is placed in the net cage, and liquid level is kept certain height, and a net tube is arranged in each net cage, with a kind of band of felt for no reason, make its running that goes round and begins again, felt band and net cage are tangent, and drive net tube running, the net tube is copied the slip of getting from net cage, evenly adhere on the felt band, and the bed of material on the felt band is wound on the round-formed type tube, when thickness reaches requirement, incision is set level, and the nip drum on conveyer is pressed into slab, and the upward pressure machine is pressed into sheet material again.
4. slab roll extrusion filtering molding method, slip is put into down through hopper on the workbench of wearing vacuum chamber, removes water in the slip by rigidity web plate suction strainer, uses the pressure roller roll extrusion above, makes the slab of required thickness, send device that slab is inhaled through suction again and delivers to next procedure.
2.8 above-mentioned slab is contained in dolly and sends steam-cured still heating pressurization to, keeps under 1.5～28MPa pressure 10～30 hours, during termination, being cooled in the still is normal pressure, opens the still ejecting plate.
2.9 go out the still wet plate in 100 ℃～180 ℃ hothouse, dry to water content be below 5%.
2.10 the sheet material after the oven dry through sander, is finished product after the bead cutter processing.
Production equipment corresponding to above-mentioned method for making is as follows:
Fig. 1 always schemes for process equipment of the present invention
By lime emulsification pond 1; The amorphous silicon micro mist disperses pond 2; Fiber dispersion device 3; Grinding machine 4; Dosing chamber 5; Gelatinization tank 6; Making sheet moulding section 7; Still kettle 11; Drying chamber 12; Cutting sander 13 constitutes; Wherein 1,2,3,4 have pumping line to be communicated with dosing chamber 5, more than be prior art, dosing chamber 5 has pumping line to be communicated with gelatinization tank 6, and agitator 6z is arranged in the gelatinization tank 6, there are steam pipe import 63 and safety valve 61 in the outside, has plunger displacement pump 64 and pipeline partly to be connected with making sheet.
Making sheet of the present invention partly has 4 kinds of different equipment, can satisfy different goods requirements, the 1st kind is the press filtration extrusion forming device (see figure 1) of mixing, and plate and frame filter press 71 is connected with vacuum-extruder 73 by its hopper 72, and vacuum-extruder 73 fronts are connected to motor and deceleration device.Vacuum chamber 74 is arranged between the two-stage screw rod, is extruded stock conveyer belt 75 below the vacuum-extruder outlet, after connect forcing press 76, conveyer 77 connects still kettle 11, drying machine 12 jointed sheet material cutting machines 13 send warehouse for finished product later on.
The 2nd kind is the press filtration extrusion molding apparatus 8 that mixes, see shown in Figure 2, be on the basis of the 1st kind of shaped device 7, to improve to form, plate and frame filter press 81 wherein, hopper 82, the vacuum chamber 84 in the middle of vacuum-extruder 83 and the two-stage vacuum extruder is all identical with first kind of making sheet shaped device 7, following roll forming part and the vacuum-extruder 83 extruded is connected with ring flange, extruder extrude chew 85 extrude that roll forming has partly that the deformation section moulding chews 86, a setting section moulding chews 87 and conveyer belt 88.Two kinds of moulding are chewed also and are connected with ring flange, and there is pressure roller 89 conveyer belt 88 tops, and there is carrying roller 810 below, and the cutting knife 811 of cutting plate base is arranged later on.
Copy for net cage for the 3rd kind and get filtering molding device 9, see shown in Figure 3, the band of felt for no reason 95 by motor and decelerator drive, at carrying roller 97, slewing rollers 98, the supporting of idler roller 916 and guiding are down, the cycle operation of going round and beginning again, felt band 95 under the pressing of net cage 93 top couch rolls 914 with net cage 93 in net tube 92 on lonely face closely contact, driving net tube 92 rotates synchronously, net tube 92 partly is dipped in the net cage 93 respectively, slip by the input of slip input pipe keeps certain liquid in net cage, there is negative pressure suction strainer case 96 felt band 95 belows for no reason, and format roll 99 is installed on the frame 94, format roll 99 and felt band for no reason 95 are tangent and rotate synchronously with felt band 95 for no reason, format roll 99 other sides are equipped with the cutting knife of cutting plate base 910, have pressure roller that carrying roller 915 and negative pressure suction strainer case 912 are arranged for 911 times on the foraminous conveyer 913, and jet cleaning water pipe and the vibrator that cleans the felt band still is equipped with in frame 94 bottoms, the idler roller 916 of tensioning felt band is established agitator in the net cage 93.Through the slab of transmission net 913, to press 917, be pressed into sheet material.
The 4th kind is that slab roll extrusion filtering molding and slab suction send device (seeing shown in Fig. 4-5) by suction strainer roller head machine 104, gas-liquid separator 113, slab vacuum suction and raise dish 110 3 parts constitute, the workbench 115 of suction strainer roller head machine 104 is a flattened rectangular case structure, its top box shell 101 is for being evenly distributed with the porous plate 106 of rigidity through hole, be fixed with filter screen 105 onboard, on filter screen 105, be covered with filter cloth 117, its nowel shell 101 is beneficial to the infundibulate of compiling filtrate for rigidity has the gradient to be slightly, can selection at its minimum position by threeway selection valve 112 and atmosphere or gas-liquid separator 113 connect, porous plate 106 is welded with the stud in length and breadth 107 that is used to support with infundibulate nowel shell 101 above in case, gives at stud 107 and 101 on following square chest shell and leaves the fluid hole 116 of avoiding the filtrate storage; On workbench 115, have can along director's direction back and forth operation and on platform the cloth truck 103 of cloth, be equipped with at the rear portion of car with car operation and scraper cutter 102 that charge level is wipeed off, on workbench 115, also be provided with can along director's direction back and forth operation make its level and smooth closely knit pressure roller 108 the bed of material is carried out roll extrusion; Normal for guaranteeing the operation of suction strainer operation and vacuum system, bottom at filtering molding platform 115 is connected with gas-liquid separator 113 by three-dimensional sluice valve 112, gas-liquid separator is a rigidity closed negative pressure housing, its top links to each other with vavuum pump to form negative pressure by blast pipe 114, on gas-liquid separator, also be provided with the discharging tube 111 that links to each other with draining pump, discharging tube 111 lower ending openings minimum position in gas-liquid separator is in order to discharge opeing; For transferring in type slab from workbench 115, this filtrate roll forming unit also is provided with a slab vacuum suction and raise dish 110, it is configured to a flat rectangular box-shaped rigid structure, the lower tank shell of casing is identical with the top box shell of workbench 115, by porous plate 106, the structure that filter screen 105 and filter cloth 117 form, send on the dish 110 in suction and also to be supported with stud 107 in length and breadth between the nowel shell, send dish 110 tops to link to each other with vavuum pump in suction by blast pipe 109, send required negative pressure to form to inhale, check and regulate the body and function suspension ring and inhale to send, drop hanger, wirerope is hung on light-weight electric crane below, can all around move up and down along guide rail, and molded slab is transferred next procedure.
Embodiment 1
Quartz is milled to all the sieve by 60 μ m, adds siliceous raw material and weigh the 10% silicon ash that has disperseed.The slaked lime powder that adds CaO content 72.2% again, stir evenly, the Ca/Si=0.98 of slip, add siccative afterwards and weigh 2% flaxen fiber that had disperseed and 5% wollastonite in powder, the gelatinization tank that the band that the slip input that mixes is sealed stirs adds water to water/material (weight ratio)=3.1, stirs and logical steam heated with 120 rev/mins, continue 8 hours under 120 ℃ of temperature, emptying afterwards is cooled to normal pressure.By the plunger displacement pump dnockout to the plate and frame filter press drainage to moisture 52%, extrude tabular base just through the vacuum muller, cut suitable first base and in the mould of press, be pressed into plate, plate is of a size of 1004 * 504 * 27 (mm), plate put send on the car in the steam-cured still, ventilation is heated to 2.0MPa, and continue 22 hours, emptying afterwards and water flowing are cooled to normal pressure, take out wet plate at 120～140 ℃ dry kiln drying to constant weight, do back size 1007 * 505 * 27 (mm), size 1000 * 500 * 25 (mm) after sanding is cut edge, relevant performance sees Table 1.
Embodiment 2
Quartz is milled to all the sieve by 30 μ m, adds the milk of lime of CaO content 69.4% (butt), stir evenly the Ca/Si=1.05 of slip.The adding siccative weighs 5% paper fiber, and adds water to water/material (weight ratio)=9.9, goes into gelatinization tank, leads to be steam heated to 90 ℃, and continues 30 hours at 90 ℃～96 ℃.Slip is injected in the mould of the logical vacuum in bottom, die bottom plate is evenly distributed with a large amount of apertures, and there is felt on its upper berth.Open vacuum dehydration, after being drawn to material and losing flowability, repave a felt on the material, round roller roll extrusion on felt with a heavily about 100kg, to 22mm thick and the material strong, take off round roller and felt, destroy the bottom vacuum, take out sheet material to dolly with sucker, plate be of a size of 1020 * 520 * 22 (mm) plate in steam-cured still in logical steam begin constant temperature to 1.5MPa, under 1.5-1.8MPa pressure, continue 30 hours, be cooled to normal pressure, to constant weight, cut edge by sanding at dry kiln drying for the taking-up wet plate, be of a size of 1000 * 500 * 20 (mm), relevant performance sees Table 1:
Reference examples 1
With Si0
2The diatomite of content 72% adds the water dispersed with stirring in stirring pool, and adds the silicon ash that had disperseed, and diatomite and silicon ash weight ratio are 4: 6.Prepare burden to Ca/Si=0.97 with the slaked lime powder of CaO content 72.2%, add siccative and weigh 5% paper pulp fiber and 15% wollastonite in powder, and add water to water/material=5.0, go into gelatinization tank, logical vapour is heated to 96～99 ℃, continues 30 hours.Dewater to material moisture 54% by filter press, the vacuum muller is directly extruded the flat board of 1010 * 510 * 27 (mm), with plate in the still of 2.3MPa steam-cured 24 hours, cooling, take out oven dry, do back size 1010 * 510 * 27 (mm), size 1000 * 500 * 25 (mm) after sanding is cut edge, relevant performance sees Table 1.
Reference examples 2
With the flat board of embodiment 1 moulding in the steam-cured still of 2.5MPa steam-cured 8 hours, drying was of a size of 1000 * 500 * 25 (mm) after the side cut, and relevant performance sees Table 1.
The prepared plate property contrast of table 1 embodiment and reference examples.
As can be seen from Table 1, two prepared sheet materials of embodiment have stable high-temperature performance, strength at normal temperature and to burn the remaining rupture strength in back all very high, and higher temperature line shrinkage factor＜2% meets the relevant requirements of GB/T10699-1998 " calcium silicate insulation ".And the made sheet material of reference examples after 1000 ℃ of 3h burn, or is broken into fritter, or running through and through-wall crack not of different directions arranged, and has all lost use value under the high temperature.
Claims (6)
1. the method for making of a calcium silicate thermal insulation PLASTIC LAMINATED is characterized in that:
1) silica flour is added water mill to silica flour in grinding machine and all pass through 10000-hole sieve;
2) the non-crystalline silicon micro mist adds the water dispersed with stirring in disperseing the pond, and rotating speed 80-400 rev/min, time 10-120 minute;
3) calcareous material adds water and is digested to milk of lime in lime emulsification pond;
4) mixed slip is placed on CaO/SiO in the dosing chamber
2Mol ratio be that Ca/Si is 0.95-1.05;
5) adding accounts for the fiber that has disperseed of total amount 2-8% and the wollastonite in powder of 0-20% in kiln basin; Stir;
6) with the input of the slip in dosing chamber gelatinization tank, Gu add water to water/weight ratio is 2-10, with Steam Heating, in 80-140 ℃ of scope, kept 3-30 hour, carry out gelatinization reaction, in this process, stir all the time, control makes and does not material suspendedly precipitate 40-400 rev/min, gel ends, and is cooled to normal pressure;
7) the above slip that react is imported laminator, makes sheet material, and with the press filtration extrusion forming method of mixing, this method is: slip is extruded slab again after the vacuum muller mixes after the plate and frame filter press press filtration dewaters, be compressed to semi-finished product on press;
8) above-mentioned slab is contained in and advances steam-cured still on the dolly, adds to be pressed under the 1.5-2.8Mpa pressure to keep 10-30 hour, after the cooling, opens the still ejecting plate;
9) going out the still wet plate is below 5% 100 ℃-180 ℃ dry kiln drying to water content;
10) sheet material after the oven dry is finished product after bead cutter and sander processing.
2. the method for making of calcium silicate thermal insulation PLASTIC LAMINATED according to claim 1, it is characterized in that described plate-making method is the press filtration extrusion moulding that mixes, this method is: slip is filter-press dehydration on plate and frame filter press, after the vacuum muller mixes, directly extrude the sheet material that meets the specification through extrusion molding portion.
3. the method for making of calcium silicate thermal insulation PLASTIC LAMINATED according to claim 1, it is characterized in that described plate-making method is that net cage is copied the filtering molding method of getting, this method is: slip is placed in the net cage, the liquid level of keeping certain height, the net tube is arranged in each net cage, the running that it is gone round and begun again with a kind of band of felt for no reason, felt band and net cage are tangent, and drive the net cage running, and the net tube is copied the slip of getting and is evenly adhered on the felt band from net cage, and the bed of material on the felt band is wound up on the forming tube, when thickness reaches requirement, incision is set level, and is rolled into slab through nip drum again, and last press is pressed into sheet material.
4. the method for making of calcium silicate thermal insulation PLASTIC LAMINATED according to claim 1, it is characterized in that described method for making is a slab roll extrusion filtering molding method, this method is that slip flows on the shaping platform that connects vacuum system through hopper, vacuum system and slip are separated by the rigidity web plate, vacuum system stream is removed water in the slip by rigidity web plate suction strainer, with roller roll extrusion repeatedly, make the slab of required thickness above, deliver to next procedure with the vacuum suction and raise dish again.
5. calcium silicate thermal insulation PLASTIC LAMINATED manufacturing installation, comprise the feedstock production part, dosing chamber, gelatinization tank, making sheet moulding section, press and steam still, dryer and machining part is characterized in that dosing chamber (5) has pumping line to be communicated with gelatinization tank (6), has agitator (62) in the gelatinization tank (6), there are steam pipe (63) and safety valve (61) in the outside, is connected with the making sheet moulding section through plunger displacement pump (64) and pipeline; Moulding section has the slip feed pipe with the press filtration extrusion forming device (7) that mixes in that plate and frame filter press (71) is preceding, there is the hydraulic oil pipe of self-hydraulic regulating and controlling cabinet the rear end, plate and frame filter press (71) is connected with screw rod vacuum-extruder (73) by the hopper (72) under it, the front of screw rod vacuum-extruder (73) is connected to motor and deceleration device, vacuum chamber (74) is arranged between two-stage screw rod vacuum-extruder, back one-level extruder mouth is following to be extruder conveyer belt (75), connect forcing press (76), below connect to press and steam still (11), dryer (12) and cutting machine (13).
6. calcium silicate thermal insulation PLASTIC LAMINATED manufacturing installation according to claim 5 is characterized in that the mix screw rod vacuum-extruder (73) of extrusion forming device (7) of described former press filtration is an one-level screw rod vacuum-extruder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021310173A CN100417501C (en) | 2002-09-24 | 2002-09-24 | Method and devcie for making heat-insulation fireproof calcium silicate board |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB021310173A CN100417501C (en) | 2002-09-24 | 2002-09-24 | Method and devcie for making heat-insulation fireproof calcium silicate board |
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| CN1420003A CN1420003A (en) | 2003-05-28 |
| CN100417501C true CN100417501C (en) | 2008-09-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| ES2553241T3 (en) | 2013-05-11 | 2015-12-07 | Heidelbergcement Ag | Procedure for the production of a magnesium silicate, belite and calcium aluminate cement |
| CN105952046A (en) * | 2016-04-27 | 2016-09-21 | 童张南 | Production method of cast-in-situ concrete hollow floor core mold and board material produced by method |
| CN106553266A (en) * | 2016-12-02 | 2017-04-05 | 青海稀宝玉石有限公司 | A kind of jade process board assembly line |
| CN108505402A (en) * | 2018-04-08 | 2018-09-07 | 胡建农 | Production technology, process units, the production technology of calcium silicate board with microporous and the calcium silicate board with microporous of calcium silicate board with microporous slab |
| CN109250449B (en) * | 2018-08-20 | 2024-01-12 | 镇江裕太防爆电加热器有限公司 | Ball screw overturning and conveying structure for triangular magnesium tube sintering equipment |
| CN114381966B (en) * | 2022-02-16 | 2024-10-11 | 湖南愿景住宅工业科技有限公司 | A vacuum mesh box for producing calcium silicate board by copying method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2073000U (en) * | 1990-07-28 | 1991-03-13 | 北京新型建筑材料总厂 | Compound plaster fire board for building |
| CN2196656Y (en) * | 1994-07-14 | 1995-05-10 | 刘永文 | Silicon-magnesium heat-insulation fire-retardent plate |
| CN1140784A (en) * | 1995-07-18 | 1997-01-22 | 朱紫麟 | Fireproof plate and its producing method |
-
2002
- 2002-09-24 CN CNB021310173A patent/CN100417501C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2073000U (en) * | 1990-07-28 | 1991-03-13 | 北京新型建筑材料总厂 | Compound plaster fire board for building |
| CN2196656Y (en) * | 1994-07-14 | 1995-05-10 | 刘永文 | Silicon-magnesium heat-insulation fire-retardent plate |
| CN1140784A (en) * | 1995-07-18 | 1997-01-22 | 朱紫麟 | Fireproof plate and its producing method |
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