CN105352272A - Vacuum stirring drying machine - Google Patents
Vacuum stirring drying machine Download PDFInfo
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- CN105352272A CN105352272A CN201510839306.0A CN201510839306A CN105352272A CN 105352272 A CN105352272 A CN 105352272A CN 201510839306 A CN201510839306 A CN 201510839306A CN 105352272 A CN105352272 A CN 105352272A
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Abstract
The invention discloses a vacuum stirring drying machine which comprises a barrel cover arranged at the upper end of a barrel cylinder, a feeding inlet formed in one side of the upper part of the barrel cover, an air extractor arranged on the other side of the upper part of the barrel cover, and a stirring device arranged in the upper middle part of the barrel cover, wherein a barrel is arranged at the external part of the barrel cylinder; a plurality of U-shaped grooves are formed in the outer wall of the barrel cylinder; a discharging outlet is formed in the lower end of the barrel cylinder; a heating layer is further arranged between the barrel and the barrel cylinder; the discharging outlet is formed in the lower end of the barrel cylinder and is close to the side wall; a thermal insulating layer is arranged on the surface of the inner wall of the barrel; a heat source outlet is formed in one side of the upper part of the barrel; a plurality of heat source inlets are formed in the other side of the barrel. The vacuum stirring drying machine mainly solves the problem that the vacuum stirring drying machine is low in heat exchanging rate and enables the barrel cylinder in the vacuum stirring drying machine to be heated more uniformly, small in heat-crack tendency and longer in service life; in addition, the invention further provides a thermal insulating material with excellent overall performance to solve the problems that the existing thermal insulating material is poor in heat insulation property and stability and short in service life.
Description
Technical field
The present invention relates to drying device field, particularly a kind of vacuum stirring-up drying machine.
Background technology
Vacuum drier aims at dry heat sensitivity, easily decomposition and readily oxidizable substance and designs, and internally can be filled with inert gas, particularly the article of some complicated components also can carry out rapid draing.Vacuum drier is by after pumping packing container inner air and reaching predetermined vacuum level, remove the equipment of member inside container moisture, aim at dry heat sensitivity, easily decomposition and readily oxidizable substance and design, internally can be filled with inert gas, the article of some complicated components also can carry out rapid draing especially.
As a kind of green drying equipment, the wide market of vacuum drier.While society brings more benefit and value, also for oneself achieving the drying machine market share of larger specific gravity.Although Drying Equipments produces a certain distance also existed at present compared with developed countries.When exploring the New developing way of dry technology, must consider the quality of efficiency, environmental protection and product, in the hope of comprehensively, coordinate and develop sustainably.Implement development strategy that is efficient and green drying, first will walk resource-conserving road for development, becoming single extensive drying is combination, intelligent drying.Not only to transform from drying process at all, also will carry out comprehensive, multi-level energy saving technical reconstruction, greatly develop the dry technology of using renewable energy sources and industrial exhaust heat.
In existing vacuum stirring-up drying machine, defect is there is in heating heat exchange, when namely passing into thermal source in drying machine, the heat of thermal source is not fully used, with in cylinder cylinder during heat exchange, heat-exchange time is short, and heat exchange is uneven, a large amount of thermal source is also underused and is just discharged outside machine, and heat exchange efficiency is low.Simultaneously because thermal source import is general just to the cylinder cylinder of the inside, this can cause a cylinder and the just right position temperature drift of thermal source import, and subject strong impulsive force, be easy to cause a cylinder being subject under local assault power, inequality of being heated and produce hot tearing, cause shorten the service life of a cylinder, add use cost.In addition, the heat insulation layer of the cylinder inboard wall of existing vacuum drier, most employing be asbestos or potter's clay class heat insulation layer, because the thermal conductivity factor of this kind of heat insulation layer is low not enough, less stable, service life is relatively short, needs carrying out frequently to study for a second time courses one has flunked, therefore, be badly in need of a kind of better heat-insulating material to replace.
Summary of the invention
Goal of the invention of the present invention is: for above-mentioned Problems existing, a kind of vacuum stirring-up drying machine is provided, mainly solve the low problem of heat transfer rate, cylinder cylinder in vacuum stirring-up drying machine is heated evenly, hot cracking tendency is little, longer service life, simultaneously, there is provided a kind of heat-insulating material of excellent combination property, the heat-insulating material thermal insulation solving existing use is poor, poor stability and service life short problem.
The technical solution used in the present invention is as follows: a kind of vacuum stirring-up drying machine, comprise and be located at a cover for cylinder upper end, be located at the charging aperture at the upper side of cover, be located at the air extractor of opposite side above cover, be located at the agitating device in the middle of above cover, described cylinder cylinder outside is provided with cylindrical shell, cylinder cylinder outer wall is dug some U-lags, cylinder cylinder lower end is provided with a discharging opening, also zone of heating is provided with between described cylindrical shell and described cylinder cylinder, described discharging opening is positioned at a cylinder lower end near side-walls, the inner wall surface of described cylindrical shell is provided with one deck heat insulation layer, the side on the top of cylindrical shell is provided with a thermal source outlet, the opposite side of cylindrical shell is provided with several thermal source imports.
Further, the thickness of described cylinder cylinder is 3-10mm, and the degree of depth of the U-lag of cylinder cylinder outer wall is 2-5mm, and width is 3-10mm, and every bar U-lag equi-spaced apart is wrapped on a cylinder.
Due to the setting of said structure, on the one hand, by increasing multiple thermal source import, solve a cylinder to be heated uneven problem, make each position of the side of a cylinder can obtain identical heat, eliminate Tong Gang local heating uneven and cause the problem of thermal stress deformation, simultaneously, multiple thermal source imports of setting up, also can make a cylinder obtain larger thermal source further, increase the efficiency of heating surface.Arranging U-lag can allow thermal source flow along U-lag, for heat exchange provides heat transfer boundary condition and time, improves heat exchange efficiency.
Further, the lower end of described cylinder cylinder is provided with a circle flange, and the thickness of described flange is 3-10mm, and width is 10-30mm, with described cylinder cylinder from being integrated, the side of the lower end of described cylindrical shell is also provided with a steam inlet, and opposite side is provided with a steam (vapor) outlet, and the inwall corner of cylindrical shell lower surface is provided with a circle boss, the height of described boss is 10-30mm, width is 10-30mm, and with described cylindrical shell from being integrated, described flange is positioned on described boss.
Further, the lower surface of described cylinder cylinder is equidistantly interval with some deflection plates, the inwall of described cylindrical shell lower surface is equidistantly interval with some deflection plates, described steam inlet place is provided with a steam diverter, described steam diverter is fixedly mounted on the lower surface of described cylinder cylinder, position and described steam inlet just right.
Due to the deadweight of cylinder cylinder and the reason of weight of material, most of drying machine is directly placed on cylindrical shell, this heat just causing a cylinder bottom portion to obtain is few, and then cause the bottom of material in a cylinder much longer compared to the time of cylinder cylinder side drying, adopt the setting of said structure, solve the problem of load-bearing on the one hand, on the other hand, by passing into high-temperature steam in cylinder cylinder bottom portion, bottom is heated, make a cylinder bottom portion also can obtain enough heats and drying is carried out to material, because bottom space is little, for improving heat exchange efficiency, deflection plate is provided with in bottom, make steam longer in the bottom space time of staying, and then reach the object improving heat exchange efficiency, simultaneously for solving steam to the thermal shock in cylinder cylinder bottom portion, a steam diverter is provided with at steam inlet place, by the cushioning effect of steam diverter, resist thermal shock on the one hand, on the other hand steam-energy is distributed in bottom space better to go, cause the turbulent flow of gas simultaneously, extend the time of staying of steam at bottom space, further increase heat exchange efficiency.
Further, described heat insulation layer is ceramic fibre coating, and thickness is 3-8mm, and even application is on the inwall of described cylindrical shell.
Further, described ceramic fibre coating is made up of ceramic fibre, described ceramic fibre its be made up of the raw material of following parts by weight: nano titanium oxide 3-5 part, alumina in Nano level 4-9 part, vanadic anhydride 2-8 part, nanometer silicon carbide 5-7 part, micron order carborundum 35-45 part, dispersant 1-5 part, zirconium latex 3-4 part, dolomite dust 4-8 part, micron order aluminium oxide 30-40 part.
Further, the particle diameter of described alumina in Nano level is 55-70nm, and the particle diameter of described micron order aluminium oxide is 12-17 μm, and the particle diameter of described Nano titanium dioxide is 20-40nm, the particle diameter of described nanometer silicon carbide is 30-40nm, and the particle diameter of described micron order carborundum is 4-8 μm.
Further, described dispersant is the mixture of sodium metasilicate and calcium carbonate, described sodium metasilicate and calcium carbonate in mass ratio 3:1 mix, described zirconium latex is the mixture of zirconium dioxide, yttria and hydrogen peroxide, the mass ratio of described zirconium dioxide and yttria is 95:5, and the mass ratio of described zirconium dioxide and hydrogen peroxide is 1:5.
Further, the preparation technology of described ceramic fibre is: nano titanium oxide good for proportioning, alumina in Nano level, vanadic anhydride, nanometer silicon carbide, micron order carborundum, dispersant, zirconium latex, dolomite dust and micron order aluminium oxide are stirred in stirrer for mixing, adopt wet method vacuum forming, after shaping at 120 DEG C dry 20h, finally be processed into product, inspection warehouse-in.
In ceramic fibre material of the present invention, zirconium dioxide is a kind of high temperature resistant material reaching more than 2000 DEG C, join in ceramic beaverboard uniformly in the mode of glue and go, through high temperature, it can become thread, a netted silk group is formed as cobweb, fiber is not disperseed, zirconium latex adopts zirconium dioxide, yttria and hydrogen peroxide three mixing, zirconium dioxide itself can be made to carry out emulsification, form liquid condition, be blended in ceramic beaverboard, when running into high temperature, it can transform voluntarily, forms Zirconium oxide fibre; Dispersant adopts sodium metasilicate and calcium carbonate mixing, these two kinds of materials are all inorganic bonding agents, when low temperature, their actings in conjunction have good combination and dispersive property, play a part in the manufacture craft process of whole product fiber dispersion evenly, base state is shaping etc. important; The ceramic fibre being base-material with aluminium oxide and carborundum has high strength and excellent resistance to elevated temperatures, satisfactory mechanical property, in order to solve the interface cohesion problem of aluminium oxide and composite material of silicon carbide in preparation process, adopt aluminium oxide and the carborundum of nanoscale and micron level, achieve ceramic material and be issued to solid density in the condition of pressureless sintering, reduce sintering temperature simultaneously, make ceramic fibre stability of the present invention better, better shaping; Add Nano titanium dioxide in ceramic fibre to adjust ceramic fibre structure to a certain extent, improve serviceability temperature, titanium dioxide can make ceramic fibre separate out anatase titanium dioxide crystalline phase and a small amount of rutile titanium dioxide in ceramic fibre, and suppress other phases to be separated out, as calcium-silicate crystalline phase, the crystalline phase separated out is larger near infrared reflectivity, improve ceramic fibre to thermal-radiating reflectivity, ensure that ceramic fibre has good heat-proof quality.
By special a kind of ceramic fibre material, the heat insulation layer of cylinder inboard wall is made to have lower thermal conductivity factor, its good stability, do not need often to study for a second time courses one has flunked, longer service life, decreases the loss of heat, reduces use cost, simultaneously special ceramic fibre material manufacturing cost is relatively not high, and feasibility is high.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
1, heat exchange efficiency is high, cylinder cylinder be heated evenly, eliminate Tong Gang local heating uneven and cause the problem of thermal stress deformation, meanwhile, vacuum stirring-up drying machine can obtain larger thermal source, increases the efficiency of heating surface.
2, by passing into high-temperature steam in cylinder cylinder bottom portion, bottom being heated, making a cylinder bottom portion also can obtain enough heats to material and carrying out drying, solving the thermal shock of steam to cylinder cylinder bottom portion simultaneously, improve the heat exchange efficiency of bottom.
3, by special a kind of ceramic material, improve the heat-proof quality of cylindrical shell, strengthen the stability of thermal insulation layer, decrease the loss of heat, reduce use cost.
Accompanying drawing explanation
Fig. 1 is a kind of vacuum stirring-up drying machine structural representation of the present invention.
Mark in figure: 1 is cylinder cylinder, and 2 is cover, and 3 is charging aperture, 4 is air extractor, and 5 is agitating device, and 6 is cylindrical shell, 7 is U-lag, and 8 is discharging opening, and 9 is zone of heating, 10 is heat insulation layer, and 11 is thermal source outlet, and 12 is thermal source import, 13 is flange, and 14 is steam inlet, and 15 is steam (vapor) outlet, 16 is boss, and 17 is deflection plate, and 18 is steam diverter.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail.
In order to make the object of invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
embodiment one
As shown in Figure 1, a kind of vacuum stirring-up drying machine, comprise the cover 2 being located at a cylinder 1 upper end, be located at the charging aperture 3 at the upper side of cover 2, be located at the air extractor 4 of opposite side above cover 2, be located at the agitating device 5 in the middle of above cover 2, described cylinder cylinder 1 outside is provided with cylindrical shell 6, cylinder cylinder 1 outer wall is dug some U-lags 7, cylinder cylinder 1 lower end is provided with a discharging opening 8, zone of heating 9 is also provided with between described cylindrical shell 6 and described cylinder cylinder 1, described discharging opening 8 is positioned at a cylinder 1 lower end near side-walls, the inner wall surface of described cylindrical shell 6 is provided with one deck heat insulation layer 10, the side on the top of cylindrical shell 6 is provided with a thermal source outlet 11, the opposite side of cylindrical shell 6 is provided with several thermal source imports 12, the thickness of described cylinder cylinder 1 is 3-10mm(optimum thickness is 5mm, according to the difference of use occasion, also 3mm or 10mm can be selected), the degree of depth of the U-lag 7 of cylinder cylinder 1 outer wall is 2-5mm(optimum depth is 3.5mm, according to the difference of cylinder cylinder 1 wall thickness, also 2mm or 5mm can be selected), width is 3-10mm(optimum width is 4mm, according to the difference of cylinder cylinder 1 wall thickness, also 3mm or 10mm can be selected), and every bar U-lag 7 equi-spaced apart is wrapped on a cylinder 1.
The lower end of described cylinder cylinder 1 is provided with a circle flange 13, the thickness of described flange 13 is 3-10mm(optimum thickness is 5mm, according to the difference of cylinder cylinder 1 wall thickness, also 3mm or 10mm can be selected), width is 10-30mm(optimum width is 20mm, according to the weight of cylinder cylinder 1, also 10mm or 30mm can be selected), with described cylinder cylinder 1 from being integrated, the side of the lower end of described cylindrical shell 6 is also provided with a steam inlet 14, opposite side is provided with a steam (vapor) outlet 15, the inwall corner of cylindrical shell 6 lower surface is provided with a circle boss 16, the height of described boss 16 is 10-30mm(optimum height is 20mm, according to the width of flange 13, also 10mm or 30mm can be selected), width is 10-30mm(optimum width is 20mm, according to the width of flange 13, also 10mm or 30mm can be selected), with described cylindrical shell 6 from being integrated, described flange 13 is positioned on described boss 16.
The lower surface of described cylinder cylinder 1 is equidistantly interval with some deflection plates 17, the inwall of described cylindrical shell 6 lower surface is equidistantly interval with some deflection plates 17, described steam inlet 14 place is provided with a steam diverter 18, described steam diverter 18 is fixedly mounted on the lower surface of described cylinder cylinder 1, position and described steam inlet 14 just right.
When thermal source enters from thermal source import 14, thermal source can flow along the U-lag 7 of cylinder cylinder outer wall around cylinder cylinder 1 outer wall, thermal source lengthened in the internal stops time, heat exchange efficiency improves, thermal source is more evenly distributed in dryer inner simultaneously, cylinder cylinder 1 can be cooled uniformly, and the thermal source after heat exchange occurs, and this discharges outside machine by the thermal source outlet 11 of side, cylindrical shell 6 top; When passing into high-temperature steam to bottom, by the obstruct of steam diverter 18 and the effect of shunting, make be subject to bottom a cylinder 1 evenly heating, the deflection plate 17 arranged extends steam residence time, improve the heat exchange efficiency bottom a cylinder 1, the steam occurred after heat exchange is discharged outside machine by steam (vapor) outlet 15.
In the present embodiment, described heat insulation layer 10 is ceramic fibre coating, thickness is 3-8mm(optimum thickness is 4mm, according to the difference of heat source medium, also 3mm or 8mm can be selected), even application is on the inwall of described cylindrical shell, and described ceramic fibre coating is made up of ceramic fibre, described ceramic fibre its be made up of the raw material of following parts by weight: nano titanium oxide 3 parts, alumina in Nano level 4 parts, vanadic anhydride 2 parts, nanometer silicon carbide 5 parts, 35 parts, micron order carborundum, dispersant 1 part, zirconium latex 3 parts, dolomite dust 4 parts, 30 parts, micron order aluminium oxide.
In the present embodiment, the particle diameter of described alumina in Nano level is 55nm, and the particle diameter of described micron order aluminium oxide is 12 μm, and the particle diameter of described Nano titanium dioxide is 40nm, the particle diameter of described nanometer silicon carbide is 40nm, and the particle diameter of described micron order carborundum is 8 μm.
In the present embodiment, described dispersant is the mixture of sodium metasilicate and calcium carbonate, described sodium metasilicate and calcium carbonate in mass ratio 3:1 mix, described zirconium latex is the mixture of zirconium dioxide, yttria and hydrogen peroxide, the mass ratio of described zirconium dioxide and yttria is 95:5, and the mass ratio of described zirconium dioxide and hydrogen peroxide is 1:5.
In the present embodiment, the preparation technology of described ceramic fibre is: nano titanium oxide good for proportioning, alumina in Nano level, vanadic anhydride, nanometer silicon carbide, micron order carborundum, dispersant, zirconium latex, dolomite dust and micron order aluminium oxide are stirred in stirrer for mixing, adopt wet method vacuum forming, after shaping at 120 DEG C dry 20h, finally be processed into product, inspection warehouse-in.
embodiment two
This embodiment is identical with embodiment one, difference is, described ceramic fibre coating is made up of ceramic fibre, described ceramic fibre its be made up of the raw material of following parts by weight: nano titanium oxide 5 parts, alumina in Nano level 9 parts, vanadic anhydride 8 parts, nanometer silicon carbide 7 parts, 45 parts, micron order carborundum, dispersant 5 parts, zirconium latex 4 parts, dolomite dust 8 parts, 40 parts, micron order aluminium oxide.
In the present embodiment, the particle diameter of described alumina in Nano level is 70nm, and the particle diameter of described micron order aluminium oxide is 17 μm, and the particle diameter of described Nano titanium dioxide is 20nm, the particle diameter of described nanometer silicon carbide is 30nm, and the particle diameter of described micron order carborundum is 4 μm.
In the present embodiment, described dispersant is the mixture of sodium metasilicate and calcium carbonate, described sodium metasilicate and calcium carbonate in mass ratio 3:1 mix, described zirconium latex is the mixture of zirconium dioxide, yttria and hydrogen peroxide, the mass ratio of described zirconium dioxide and yttria is 95:5, and the mass ratio of described zirconium dioxide and hydrogen peroxide is 1:5.
In the present embodiment, the preparation technology of described ceramic fibre is: nano titanium oxide good for proportioning, alumina in Nano level, vanadic anhydride, nanometer silicon carbide, micron order carborundum, dispersant, zirconium latex, dolomite dust and micron order aluminium oxide are stirred in stirrer for mixing, adopt wet method vacuum forming, after shaping at 120 DEG C dry 20h, finally be processed into product, inspection warehouse-in.
embodiment three
This embodiment is identical with embodiment two with embodiment one, difference is, described ceramic fibre coating is made up of ceramic fibre, described ceramic fibre its be made up of the raw material of following parts by weight: nano titanium oxide 4 parts, alumina in Nano level 6 parts, vanadic anhydride 4 parts, nanometer silicon carbide 6 parts, 40 parts, micron order carborundum, dispersant 3 parts, zirconium latex 3.5 parts, dolomite dust 6 parts, 35 parts, micron order aluminium oxide.
In the present embodiment, the particle diameter of described alumina in Nano level is 60nm, and the particle diameter of described micron order aluminium oxide is 15 μm, and the particle diameter of described Nano titanium dioxide is 30nm, the particle diameter of described nanometer silicon carbide is 35nm, and the particle diameter of described micron order carborundum is 7 μm.
In the present embodiment, described dispersant is the mixture of sodium metasilicate and calcium carbonate, described sodium metasilicate and calcium carbonate in mass ratio 3:1 mix, described zirconium latex is the mixture of zirconium dioxide, yttria and hydrogen peroxide, the mass ratio of described zirconium dioxide and yttria is 95:5, and the mass ratio of described zirconium dioxide and hydrogen peroxide is 1:5.
In the present embodiment, the preparation technology of described ceramic fibre is: nano titanium oxide good for proportioning, alumina in Nano level, vanadic anhydride, nanometer silicon carbide, micron order carborundum, dispersant, zirconium latex, dolomite dust and micron order aluminium oxide are stirred in stirrer for mixing, adopt wet method vacuum forming, after shaping at 120 DEG C dry 20h, finally be processed into product, inspection warehouse-in.
embodiment four
This embodiment and embodiment one, embodiment two are identical with embodiment three, difference is, described ceramic fibre coating is made up of ceramic fibre, described ceramic fibre its be made up of the raw material of following parts by weight: nano titanium oxide 4 parts, alumina in Nano level 8 parts, vanadic anhydride 4 parts, nanometer silicon carbide 7 parts, 42 parts, micron order carborundum, dispersant 4 parts, zirconium latex 4 parts, dolomite dust 4-8 part, 48 parts, micron order aluminium oxide.
In the present embodiment, the particle diameter of described alumina in Nano level is 65nm, and the particle diameter of described micron order aluminium oxide is 17 μm, and the particle diameter of described Nano titanium dioxide is 40nm, the particle diameter of described nanometer silicon carbide is 35nm, and the particle diameter of described micron order carborundum is 8 μm.
In the present embodiment, described dispersant is the mixture of sodium metasilicate and calcium carbonate, described sodium metasilicate and calcium carbonate in mass ratio 3:1 mix, described zirconium latex is the mixture of zirconium dioxide, yttria and hydrogen peroxide, the mass ratio of described zirconium dioxide and yttria is 95:5, and the mass ratio of described zirconium dioxide and hydrogen peroxide is 1:5.
In the present embodiment, the preparation technology of described ceramic fibre is: nano titanium oxide good for proportioning, alumina in Nano level, vanadic anhydride, nanometer silicon carbide, micron order carborundum, dispersant, zirconium latex, dolomite dust and micron order aluminium oxide are stirred in stirrer for mixing, adopt wet method vacuum forming, after shaping at 120 DEG C dry 20h, finally be processed into product, inspection warehouse-in.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a vacuum stirring-up drying machine, comprise the cover (2) being located at a cylinder (1) upper end, be located at the charging aperture (3) of cover (2) upper side, be located at the air extractor (4) of cover (2) top opposite side, be located at the agitating device (5) in the middle of cover (2) top, it is characterized in that, described cylinder cylinder (1) outside is provided with cylindrical shell (6), cylinder cylinder (1) outer wall is dug some U-lags (7), cylinder cylinder (1) lower end is provided with a discharging opening (8), zone of heating (9) is also provided with between described cylindrical shell (6) and described cylinder cylinder (1), described discharging opening (8) is positioned at a cylinder (1) lower end near side-walls, the inner wall surface of described cylindrical shell (6) is provided with one deck heat insulation layer (10), the side on the top of cylindrical shell (6) is provided with a thermal source outlet (11), the opposite side of cylindrical shell (6) is provided with several thermal source imports (12).
2. vacuum stirring-up drying machine as claimed in claim 1, it is characterized in that, the thickness of described cylinder cylinder (1) is 3-10mm, and the degree of depth of the U-lag (7) of cylinder cylinder (1) outer wall is 2-5mm, width is 3-10mm, and every bar U-lag (7) equi-spaced apart is wrapped on a cylinder (1).
3. vacuum stirring-up drying machine as claimed in claim 2, it is characterized in that, the lower end of described cylinder cylinder (1) is provided with a circle flange (13), the thickness of described flange (13) is 3-10mm, width is 10-30mm, certainly be integrated with described cylinder cylinder (1), the side of the lower end of described cylindrical shell (6) is also provided with a steam inlet (14), opposite side is provided with a steam (vapor) outlet (15), the inwall corner of cylindrical shell (6) lower surface is provided with a circle boss (16), the height of described boss (16) is 10-30mm, width is 10-30mm, certainly be integrated with described cylindrical shell (6), described flange (13) is positioned on described boss (16).
4. vacuum stirring-up drying machine as claimed in claim 3, it is characterized in that, the lower surface of described cylinder cylinder (1) is equidistantly interval with some deflection plates (17), the inwall of described cylindrical shell (6) lower surface is equidistantly interval with some deflection plates (17), described steam inlet (14) place is provided with a steam diverter (18), described steam diverter (18) is fixedly mounted on the lower surface of described cylinder cylinder (1), position and described steam inlet (14) just right.
5. the vacuum stirring-up drying machine as described in one of claim 1-4, is characterized in that, described heat insulation layer (10) is ceramic fibre coating, and thickness is 3-8mm, and even application is on the inwall of described cylindrical shell (6).
6. vacuum stirring-up drying machine as claimed in claim 5, it is characterized in that, described ceramic fibre coating is made up of ceramic fibre, described ceramic fibre its be made up of the raw material of following parts by weight: nano titanium oxide 3-5 part, alumina in Nano level 4-9 part, vanadic anhydride 2-8 part, nanometer silicon carbide 5-7 part, micron order carborundum 35-45 part, dispersant 1-5 part, zirconium latex 3-4 part, dolomite dust 4-8 part, micron order aluminium oxide 30-40 part.
7. vacuum stirring-up drying machine as claimed in claim 6, it is characterized in that, the particle diameter of described alumina in Nano level is 55-70nm, the particle diameter of described micron order aluminium oxide is 12-17 μm, the particle diameter of described Nano titanium dioxide is 20-40nm, the particle diameter of described nanometer silicon carbide is 30-40nm, and the particle diameter of described micron order carborundum is 4-8 μm.
8. vacuum stirring-up drying machine as claimed in claim 7, it is characterized in that, described dispersant is the mixture of sodium metasilicate and calcium carbonate, described sodium metasilicate and calcium carbonate in mass ratio 3:1 mix, described zirconium latex is the mixture of zirconium dioxide, yttria and hydrogen peroxide, the mass ratio of described zirconium dioxide and yttria is 95:5, and the mass ratio of described zirconium dioxide and hydrogen peroxide is 1:5.
9. vacuum stirring-up drying machine as claimed in claim 7, it is characterized in that, the preparation technology of described ceramic fibre is: nano titanium oxide good for proportioning, alumina in Nano level, vanadic anhydride, nanometer silicon carbide, micron order carborundum, dispersant, zirconium latex, dolomite dust and micron order aluminium oxide are stirred in stirrer for mixing, adopt wet method vacuum forming, after shaping at 120 DEG C dry 20h, finally be processed into product, inspection warehouse-in.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105352272B (en) | 2017-10-20 |
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