CN208308903U - Impervious combined cone disperse air brick - Google Patents

Abstract

Impervious combined cone disperse air brick, it is to be designed to air brick disperse block and the consistent taper of air brick appearance, it and is that two valves are composed, and one layer of castable is devised between disperse block and metal shell, the design of shape is to increase ventilative sectional area, to guarantee Air permenbility, so as to reduce disperse block internal flaw suitably to improve various performances, realize the long-life, the meaning being composed is to suppress respectively, guarantee uniformity, the meaning of the castable is that effectivelying prevent the insufficient disperse block bring of chamotte to negatively affect even seeps steel, the air brick of the structure has the characteristics that the long-life, it can be used for any large-scale refining ladle.

Description

Impervious combined cone disperse air brick

Technical field

The present invention relates to Ferrous Metallurgy external refining bottom blowing ar systems, the especially steel in structural ceramics in terms of refractory material Packet air brick, the structure, production method and its formula of dispersive air brick even more in air brick.

Background technique

In iron and steel metallurgical industry, the appearance of external refining is that process for making overturns sexual development, be will adjust molten steel composition, The task that temperature removal is mingled with is transferred to the secondary refining process smelted in ladle, therefore air brick of steel ladle is the core of high-quality steel Heart function element.

The development course of air brick of steel ladle is general are as follows: originally there is the dispersive air brick of high alumina, clay matter, it is fixed herein Justice is " first generation air brick " although its service life only several times, belongs to bottom blowing, top blast Stirring device more originally from mode Make progress meaning, and with the development of metallurgical material, slit occurs in air brick, and the service life greatly improves, and has been fully advanced steel The development of iron metallurgy, currently, air brick of steel ladle also selects slit class air brick mostly, the service life according to the difference of refinery issues and It is different, it time is differed from 7-8 times to about 100, in recent years, has also appeared a kind of disperse formula air brick in the market, be defined herein as " second generation dispersive air brick ", under certain refining conditions, the advantage or performance that can not have with slit class air brick are special Point, it is such as not easy to break, cleaned without oxygen rifle etc..

Air brick appearance is tapered, circular in cross-section, there is several parts such as refractory aggregate, metal shell, tail pipe, Function is that argon gas is conveyed into ladle, reaches the purpose of refining to stir molten steel.

Slit class air brick is the air brick that ar gas passage has specific physical form, and the generation of slit can be by ceramic wafer Splicing, band-like or linear burnings lost article are embedded in air brick castable, the generation after high temperature burns and loses.

Disperse class air brick includes the first generation, the second generation and novel disperse air brick of the present invention, be all by The mode that grade is matched achievees the purpose that argon gas passes through in the gap that refractory aggregate indwelling is largely mutually communicated or stomata, production Method is typically all repressed forms.

First generation dispersive air brick, disperse vent portion are entirely taper, that is to say, that refractory aggregate is whole It is disperse vent portion, production method is stood from air brick major part to manual ramming, develops to single-side machine pressure later, compression face is Air brick major part position, but because refractory aggregate is tapered, and air brick ratio of height to diameter is too big, therefore the method for this compacting There will necessarily be the defects of uneven inside green body, dispersive air brick of good performance can not be produced.

The structure of the second generation dispersive air brick occurred in recent years is then different with first generation disperse air brick, refractory material Ontology includes rectangular disperse block, and surrounding wraps up castable and pedestal (shown in attached drawing 1), and it is single convenient for side that disperse block makes squarely The compacting of face stress, disperse block uniformity is higher, and performance of being on active service is more satisfactory.

In second generation dispersive air brick, the structure type of rectangular disperse block necessarily causes ventilation sectional area to be restricted, The air brick top diameter as is 120mm, and rectangular disperse block maximum can only be fabricated to the inscribed circle for being 120mm with diameter, Area is about the 63.7% of the area of a circle.

Described previously, disperse class air brick gas passage is to produce void defects intentionally by the grain composition of disperse block Realize ventilation, because there is a large amount of defect in inside, the various mechanical properties for inevitably resulting in disperse block in this way decline to a great extent, such as Fruit reduces disperse block internal flaw to improve mechanical property, then Air permenbility will receive shadow under the premise of limited sectional area It rings, therefore, if there is a kind of method, it is possible to reduce the defect of disperse block internal gas passageways is to improve the mechanical property of disperse block Can, and can guarantee the production uniformity of Air permenbility and disperse block, the disperse air brick of high life a kind of can be provided.We know Road reduces disperse block internal ventilation void defects, can be realized by formula and technique；The production uniformity of disperse block can pass through work Skill means are realized；Guarantee that Air permenbility can only then increase the sectional area of disperse block, disperse block is fabricated to and the consistent cone of air brick Shape, that is to say, that for appearance, be fabricated to the consistent shape of first generation disperse air brick, and first generation disperse can be overcome saturating The deficiency of gas brick, i.e. subject of the present invention: combined cone disperse air brick, including its structure, production method and formula etc..

In addition, taper air brick i.e. appearance as characterized above is consistent with first generation dispersive air brick, from production It for technique, can be realized by the method for equal static pressure, but when the compacting of this method has the material of ventilation void defects, held very much Easy fracture, layer are split, and yield rate is too low, under production efficiency is very low.

It is existing in the related technology, the core of patent 201020104628.3 is " positioned at the slit permeable portion (4) of core The disperse permeable portion (5) external in the slit permeable portion (4) with setting ", meaning be " mixing effect is good, have compared with Good catharsis and work efficiency is high "；The effect of patent 201120352995.X is similar with 201020104628.3；Patent 201520819368.0 disperse portion centers be placed in a columnar core the beneficial effect is that: " be not only advantageous to form, use When can clear up the thermal stress that air brick is subject to, correspondinglyd increase the safety coefficient of air brick "；Patent 201520821852.7 is saturating It is entirely the disperse shape an of monoblock type inside gas brick, meaning is " big ventilatory capacity "；Patent 201610199792.9, 201610202807.2 being a kind of disperse brick made of the method through being poured；Patent 201610794506.3 is to be extruded from system For a kind of disperse formula air brick；Patent 201710013255.5 is the method with casting, passes through preset sponge production one Kind disperse air brick.

Summary of the invention

To realize the theory, to reach corresponding beneficial effect, the technical solution adopted by the present invention is that:

1, structure

It is the taper disperse block of circle, bottom that 1.1 air brick refractory portions, which include: by the cross section that two parts are composed, The characteristics of seat, seam castable, several parts of seam chamotte, taper disperse block is that symmetrical two are longitudinally classified as along axis Point, and directly physical combination forms, the disperse block being composed and pedestal are physically contacted, and have gas chamber between the two, and disperse block is logical It crosses chamotte to be adjacent to air brick metal shell, be filled between pedestal and air brick metal shell with seam castable, as shown in Figure 2 Structure, this is the foundation structure of combined cone disperse air brick.

The gas passage of pedestal is slit, and the height of pedestal is 80mm-250mm, has one or two anchoring on pedestal Slot, pedestal profiles can be tapered or cylindrical, chamotte with a thickness of 0.1mm-3mm.

The core of this programme is to be that disperse block is tapered and be divided into symmetrical two parts, the meaning of taper be exactly from For volume, Air permenbility can be big, and the meaning of segmentation is to press with single-side machine, guarantees compacting uniformity.

1.2, air brick refractory portion include: the taper disperse block that the cross section being composed of two parts is circle, The core-broken at disperse block center, pedestal, seam castable, several parts of seam chamotte, the symmetrical disperse block of two parts are composed When in disperse block be centrally formed a complete cylinder vacancy, wherein vibration perfusion high-performance refractory castable forms core-broken, cone The characteristics of shape disperse block is symmetrical two parts to be longitudinally classified as along axis, and directly physical combination forms, and is composed Disperse block and pedestal are physically contacted, and have gas chamber between the two, and disperse block is adjacent to by chamotte and air brick metal shell, pedestal and It is filled between air brick metal shell with seam castable, structure as shown in Figure 3, this is ventilative for anti-breaking type combined cone disperse Brick.

The gas passage of pedestal is slit, and the height of pedestal is 80mm-250mm, has one or two anchoring on pedestal Slot, pedestal profiles can be tapered or cylindrical, chamotte with a thickness of 0.1mm-3mm, the diameter of core-broken is 20mm-80mm, is prevented Disconnected core castable requires critical granularity to be no more than 6mm, and the cold conditions flexural strength at a temperature of 1620 DEG C is more than or equal to 36MPa, accordingly Linear change rate is between+0.08% to+0.25%, and refractoriness is more than or equal to 1810 DEG C.

This programme is to design one on the basis of scheme 1 at the center of taper disperse block and be made of high-performance castable Core-broken, meaning is to prevent the fracture of disperse block.

1.3, the structure of air brick includes: that the cross section being composed of two parts is the taper disperse block of circle, pedestal, connects Stitch several parts of castable, the characteristics of taper disperse block is that symmetrical two parts are longitudinally classified as along axis, and direct physical set Close, the disperse block being composed and pedestal are physically contacted, have gas chamber between the two, disperse block and air brick metal shell it Between, filled with seam castable between pedestal and air brick metal shell, structure as shown in Figure 4, this is bored for impervious combined type Shape disperse air brick.

Seam castable thinnest part with a thickness of 8mm-30mm, the gas passage of pedestal is slit, and the height of pedestal is 80mm-250mm has one or two anchor slot on pedestal, and pedestal profiles can be tapered or cylindrical.

This programme is to remove seam chamotte on the basis of scheme 1, is replaced with seam castable, it is known that chamotte phase It is weak spot forever, therefore the meaning of scheme 3 can be avoided air brick described in scheme 1 and use for castable refractory Later period may seep steel from chamotte part, while the cross section for the disperse block being composed of two valves theoretically can be rounded, it is desirable that Disperse block production precision is higher, has certain drawbacks with chamotte connection disperse block and metal shell, using castable refractory come generation It replaces, then can avoid above-mentioned drawback, but from another point of view by the shortcoming of this programme and scheme 1 is exactly because around disperse block Seam castable, therefore breathing area is slightly reduced, therefore the two respectively has advance.

1.4, the cross section being composed of two parts be the taper disperse block of circle, the core-broken at disperse block center, pedestal, Several parts of seam castable are centrally formed a complete cylinder sky in disperse block when the symmetrical disperse block of two parts is composed It lacks, wherein vibration perfusion high-performance refractory castable forms core-broken, the characteristics of taper disperse block is longitudinal by its point along axis For symmetrical two parts, and directly physical combination forms, and the disperse block being composed and pedestal are physically contacted, and has gas between the two Room is filled, such as Fig. 5 between disperse block and air brick metal shell, between pedestal and air brick metal shell with seam castable Shown structure, this is anti-breaking, impervious combined cone disperse air brick.

Seam castable thinnest part with a thickness of 8mm-30mm, the gas passage of pedestal is slit, and the height of pedestal is 80mm-250mm has one or two anchor slot on pedestal, and pedestal profiles can be tapered or cylindrical, the requirement of core-broken castable Critical granularity is no more than 6mm, and the cold conditions flexural strength at a temperature of 1620 DEG C is more than or equal to 36MPa, and corresponding Linear change rate is+ Between 0.08% to+0.25%, refractoriness is more than or equal to 1810 DEG C.

This programme is to remove seam chamotte on the basis of scheme 2, is replaced with seam castable, and equally, chamotte is compared to resistance to It is weak spot forever, therefore the meaning of scheme 4 can be avoided air brick described in scheme 2 and use the later period for fiery castable Steel may be seeped from chamotte part, while the cross section for the disperse block being composed of two valves theoretically can be rounded, it is desirable that disperse Block production precision is higher, has certain drawbacks with chamotte connection disperse block and metal shell, is replaced using castable refractory, then Above-mentioned drawback can be avoided, but from another point of view by the shortcoming of this programme and scheme 2 is exactly because of seam around disperse block Castable, therefore breathing area is slightly reduced, therefore the two respectively has advance.

2, the production method of taper disperse block:

2.1 disperse blocks do not have the case where core-broken, such as the form of Fig. 8:

It stocks up by formula, all particulate materials and fine powder material is uniformly mixed respectively, all particulate materials are added in blender, Remaining fine powder material is added in additional poly-vinyl alcohol solution again after mixing, after mixing 3min, by the spare molding of material；

Disperse block is designed to symmetrical two parts, molding mode is single side by molded, and compression face is disperse block edge The face that axis is cut makes mold according to brick, and seaming chuck compression face is plane (Figure 12,13 shown in), is then added mixed Material suppresses each section of disperse block, briquetting pressure 70MPa-150MPa, and disperse block made of compacting reserves 1mm-10mm Straight section；

Pressed two valves disperse block is fired by 150 DEG C of dryings of highest and through 1500 DEG C -1700 DEG C of highest；

The straight section of two valve disperse blocks is ground off, it is desirable that guarantee precision, by the two direct physical combinations of valve disperse block after polishing The production of the disperse core can be completed.

There is the case where core-broken at 2.2 disperse block centers, such as the form of Figure 11:

It stocks up by formula, all particulate materials and fine powder material is uniformly mixed respectively, all particulate materials are added in blender, Remaining fine powder material is added in additional poly-vinyl alcohol solution again after mixing, after mixing 3min, by the spare molding of material；

Disperse block is designed to symmetrical two parts, molding mode is single side by molded, and compression face is disperse block edge The face that axis is cut, according to brick production mold, design diameter is 20mm- along its length on the center line of seaming chuck compression face The semicolumn protrusion of 80mm, and include the straight section (Figure 15,16 shown in) of 1mm-10mm, mixed material compacting disperse is then added The each section of block, briquetting pressure 70MPa-150MPa, disperse block made of compacting reserve the straight section of 1mm-10mm；

Pressed two valves disperse block is fired by 150 DEG C of dryings of highest and through 1500 DEG C -1700 DEG C of highest；

The straight section of two valve disperse blocks is ground off, it is desirable that guarantee precision, by the two direct physical combinations of valve disperse block after polishing, The production of disperse core can be completed, self-assembling formation one diameter in center is the cylinder hollow of 20-80mm.

The production method of disperse block is one of core of the invention, i.e., two valves are separately suppressed, and stress height is lower, therefore can The uniformity for guaranteeing product, is then polished, is combined, the taper disperse block interior tissue uniformity coefficient suppressed in this way, is both ends Single side compression cannot achieve, and production and producing efficiency are also that equal static pressure one-pass molding cannot achieve.

3, make the structure and application method of disperse block mold

3.1 molds include that the steel substrate containing straight section, four pieces of detachable steel side plates and steel are framed, and in addition there are steel Matter pressure head, floor cavities are consistent with the curved appearance of suppressed disperse block, and bottom plate straight section height is 1mm-10mm, the thickness of side plate For 20mm-50mm, framed effective thickness is 50mm-100mm, is combined between adjacent side plate in oblique angle, when vertical view oblique angle be 40 °- It 50 °, is arranged in pairs or groups after four pieces of side plates, floor combinations with framed inner cavity, the framed contact surface of side plate with after combining has 1 ° -15 ° to take off Mould is slightly spent, and the side plate and bottom plate after combination can be framed by the ejection of the mandril in press below bottom plate, and indenter size ratio is taken therewith The small 0.2mm-10mm of the corresponding minimum dimension of the internal model matched.

The drawing method of refractory material, usually stent are exactly that during demoulding, lower plate ejects product, are pushing up During out, product and side plate have friction, damage product that will certainly be different degrees of, and this programme is the shape based on suppressed product Feature designs, and detachable side plate ejects simultaneously with product when de-, therefore ensure that product is injury-free, has certain elder generation Into property, the mode that is collocated with each other of all parts, draft angle etc. are additionally provided in scheme, in practice it has proved that, designed by this programme Mold can effectively ensure that the ideal molding of the disperse block.

The application method of 3.2 molds: design mold simultaneously be assembled on hydraulic press table top, as shown in Figure 12 and Figure 13, then plus Enter the material being pre-mixed.

Slowly pressurization, sets specific pressure, it is desirable that pressure head depressed position is Figure 12, and upper dotted line shown in Figure 13 can lead to The volume of charging is crossed to control, height shown in dotted line is straight section height, and pressure maintaining rose pressure head after 20 seconds.

With press machine mandril top die bottom plate, bottom plate, side plate, the sample block suppressed while being ejected at this time, such as Figure 17 institute Show.

After removing four pieces of side plates, sample block is moved on kiln car, enters in dry after filling and is toasted.

It is re-assemblied after bottom plate, side plate are cleaned out, the compacting of next piece of disperse block is then carried out according to same method.

The disperse block of cylindrical hole is had if necessary to suppress, it is only necessary to add along its length when making mold in pressure head One semicolumn core of work, it shall be noted that be this cylindrical core also include straight section, straight section height that height is reserved with disperse block, mould Have bottom plate straight section height it is identical, other drawing methods with it is described identical.

4, the formula of disperse block

Plate diamond spar, white fused alumina and the chromic oxide content that 4.1 granularities are 1mm-2mm are in the pink fused alumina of 1wt%-5wt% One or any of several combine in any proportion after total amount be 32wt%-40wt%, granularity be 0.2mm-0.8mm plate One of pink fused alumina that corundum, white fused alumina and chromic oxide content are 1wt%-5wt% any several combines in any proportion Total amount afterwards is 45wt%-57wt%, and plate diamond spar, white fused alumina and the chromic oxide content that granularity is less than or equal to 325 mesh are Total amount after one of pink fused alumina of 1wt%-5wt% or any several combinations in any proportion is 0.5wt%-11wt%, α Alumina powder is 1.5wt%-10wt%, and chromium oxide micro mist is 1wt%-8wt%, and it is small that purity is more than or equal to 99.9%, granularity It is 2wt%-5wt% in the silica flour for being equal to 325 mesh, 97 fine silica powders are 0.02wt%-2wt%, and when molding is additional cold Solidifying type polyvinyl alcohol saturated solution 2wt%-5wt%.

The chromium that plate diamond spar, white fused alumina and the chromic oxide content that 4.2 granularities are 0.6mm-1.4mm are 1wt%-5wt% is rigid Total amount after one of jade or any several combinations in any proportion is 76wt%-89wt%, and granularity is less than or equal to 325 purposes One of pink fused alumina that plate diamond spar, white fused alumina and chromic oxide content are 1wt%-5wt% or it is any it is several in any proportion Total amount after combination is 1wt%-13wt%, and alpha-aluminium oxide micro mist is 1wt%-12wt%, and chromium oxide micro mist is 1wt%-7wt%, It is 1wt%-6wt% that purity, which is more than or equal to 99.9%, granularity and is less than or equal to the silica flour of 325 mesh, and 97 fine silica powders are 0.1wt%-2wt%, when molding additional condensing type polyvinyl alcohol saturated solution 2wt%-5wt%.

4.3 particle size ranges be 1.2mm-1.8mm arbitrary dimension isometrical particle, can be plate diamond spar, white fused alumina and One of pink fused alumina that chromic oxide content is 1wt%-5wt% or it is any it is several combine in any proportion, total amount 37wt%- 42wt%, particle size range are any isometrical particle of 0.2mm-0.8mm, can be plate diamond spar, white fused alumina and chromic oxide content One of pink fused alumina for 1wt%-5wt% or it is any it is several combine in any proportion, total amount 36wt%-41wt%, grain Degree is less than or equal to plate diamond spar, white fused alumina and the chromic oxide content of 325 mesh and is one of pink fused alumina of 1wt%-5wt% or appoints Anticipate it is several combine in any proportion after total amount be 2wt%-14wt%, alpha-aluminium oxide micro mist is 2wt%-13wt%, and chromium oxide is micro- Powder is 2wt%-11wt%, and it is 1.5wt%- that purity, which is more than or equal to 99.9%, granularity and is less than or equal to the silica flour of 325 mesh, 2.5wt%, 97 fine silica powders are 0.3wt%-3.5wt%, when molding additional condensing type polyvinyl alcohol saturated solution 2wt%-5wt%.

The formula of 4.4 air brick disperse blocks are as follows: particle size range is the isometrical particle of the arbitrary dimension of 0.8mm-1.2mm, can To be plate diamond spar, white fused alumina and chromic oxide content for one of pink fused alumina of 1wt%-5wt% or any several by any Ratio combination, total amount 77wt%-88wt%, plate diamond spar, white fused alumina and the chromic oxide content that granularity is less than or equal to 325 mesh are Total amount after one of pink fused alumina of 1wt%-5wt% or any several combinations in any proportion is 2wt%-14wt%, α oxygen Change aluminium micro mist is 3.5wt%-8wt%, and chromium oxide micro mist is 1.5wt%-6wt%, and purity is more than or equal to 99.9%, granularity and is less than Silica flour equal to 325 mesh is 0.5wt%-4wt%, and 97 fine silica powders are 0.05wt%-1.8wt%, and when molding is additional Condensing type polyvinyl alcohol saturated solution 2wt%-5wt%.

5, the physical index of disperse block: the cold conditions flexural strength after 1685 DEG C of heat preservation 4h is 6MPa-10MPa, corresponding pressure resistance Intensity is 25MPa-90MPa, and the corresponding porosity is 23%-32%, and refractoriness is more than or equal to 1810 DEG C.

The beneficial effects of the present invention are: each technical solution has the characteristics that different and beneficial effect, and attached behind, In general, the purpose of the present invention is the refractory portion of air brick consumption section is all made into disperse block, because ventilation is horizontal Sectional area becomes larger, therefore can be by the smaller of the design of the venting channels inside disperse block, that is, gap or the defect of disperse block It is less, the mechanical performance of disperse block can be improved naturally, to extend service life and beneficial effects of the present invention.Specification is adopted The principle of the technical measures taken is to avoid disperse block size head uneven by molded adjoint inside, therefore disperse block is divided At two valves difference single side by molded, the uniformity of disperse block ensure that, and come in fact as polished by some necessary process means It now makes, then taking these measures such as a reserved cylindrical core, disperse block periphery design seam castable is entirely technical side The successive optimization of case；In scheme not using etc. make taper disperse block by the way of static pressure or moulding by casting, be because of these techniques Means have the defects that more serious or not mature enough, can not provide effective, reliable product.

The a series of disperse block production formula based on other technical solutions is additionally provided in technical solution, with tradition Disperse block formula have larger difference, as a whole, it is logical inside disperse block that the design concept of formula is that appropriateness reduces Gas gap guarantees the higher perforation degree in gap, and improves the performance indicator of disperse block as far as possible, to realize the long-life, such as There are biggish dead air spaces for fruit, do not contribute permeability, and may be decreased material self performance.

Therefore, it produces applied to large ladle furnace, such as 300 tons of refined steel ladles long-lives and the cone with good function Shape disperse air brick is final purpose and beneficial effect of the invention.

Detailed description of the invention:

Fig. 1: traditional gas permeable brick sectional view；

Fig. 2: disperse block is without core-broken, with chamotte seam air brick sectional view；

Fig. 3: disperse block has core-broken, with chamotte seam air brick sectional view；

Fig. 4: disperse block is without core-broken, with castable seam air brick sectional view；

Fig. 5: disperse block has core-broken, with castable seam air brick sectional view；

Fig. 6: without cylindrical hole disperse block sectional view after compacting；

Fig. 7: without cylindrical hole disperse block sectional view after polishing；

Fig. 8: without sectional view after the combination of cylindrical hole disperse block；

Fig. 9: band cylindrical hole disperse block builds sectional view after compacting；

Figure 10: band cylindrical hole disperse block sectional view after polishing；

Figure 11: sectional view after band cylindrical hole disperse block combination；

Figure 12: diagrammatic cross-section after mold assembling；

Figure 13: diagrammatic cross-section after mold assembling；

Figure 14: top view after mold assembling；

Figure 15: diagrammatic cross-section after band core-broken disperse block mould therefor assembling；

Figure 16: diagrammatic cross-section after band core-broken disperse block mould therefor assembling；

Figure 17: schematic diagram is demoulded after mould ejection.

In figure: 1.: disperse block, 2.: seam castable, 3.: pedestal, 4.: core-broken, 5.: slit, 6.: anchor slot, 7.: Gas chamber, 8.: cylinder groove, 9.: bottom plate, 10.: mold side plate,It is framed,Pressure head,Cylindrical core,Square is more Dissipate block, H: straight section height, D: core-broken, cylinder groove diameter, α: mold side board group close angle degree, β: mold releasability angle.

Specific embodiment

1,1. disperse block is formulated example

Example such as table 1- table 4 under the premise of based on technical solution:

1. table 1, disperse block are formulated example

1. table 2, disperse block are formulated example

1. table 3, disperse block are formulated example

1. table 4, disperse block are formulated example

In table 1-4 1. cited formula all can be made into disperse block described in this programme, wherein the 1# in each table is Optimization formula.

2, mold uses example

Compacting concentric reducer diameter is respectively φ 120, φ 170, highly 1. for the disperse block of 380mm.

2.1, design four pieces of side plates of mold with a thickness of 50mm 10., mold side plate 10. in the height H1 of two pieces of side boards 10. take 96mm, 10. height H2 takes 200mm to end face side plate where major part, and 10. height H3 takes 176mm to end face side plate where microcephaly, framed Effective thickness takes 80mm, and inner cavity top view is trapezoidal, and the size of lower part takes 215mm × 275mm × 480mm, and upper dimension takes 223mm × 283mm × 488mm, self-assembling formation draft angle, pressure headTop view is trapezoidal, size take 119mm × 169mm × 379mm。

2.2, it will be fixed on 600 tons of hydraulic press table top after the assembling of above-mentioned mold component, as shown in Figure 12 and Figure 13, so The material being pre-mixed is added afterwards.

2.3, it slowly pressurizes, pressure is set as 415 tons, it is desirable that pressure head depressed position is Figure 12, upper dotted line shown in Figure 13, can It is controlled by the weight of charging, height shown in dotted line is straight section height, this example takes 10mm, and pressure maintaining rose pressure head after 20 seconds

2.4,9. with press machine mandril top die bottom plate, at this time bottom plate 9., side plate 10., the sample block suppressed while being pushed up Out, as shown in figure 17.

2.5, after removing four pieces of side plates 10., sample block is moved on kiln car, enters in dry after filling and is toasted.

2.6 by bottom plate 9., side plate re-assemblied after 10. cleaning out, then carry out next piece of disperse block according to same method 1. compacting.

If necessary to suppress the disperse block with cylindrical hole 1., it is only necessary in pressure head when making moldAlong length Direction processes a semicolumn coreIt should be noted that this cylindrical core also includes straight section, 1. height is reserved with disperse block Straight section height it is identical, other drawing methods with it is described identical.

3, air brick production method example

The production method of 3.1 disperse blocks 1.

3.1.1 as shown in figure 8, production without cylindrical hole disperse block 1.:

It stocks up by formula, chooses any formula in example, all particulate materials and fine powder material are uniformly mixed respectively, are being stirred All particulate materials, then additional poly-vinyl alcohol solution are added in machine, remaining fine powder material is added after mixing, it, will after mixing 3min The spare molding of material；

1. disperse block is designed to symmetrical two parts, molding mode is single side by molded, and compression face is disperse block 1. making mold according to brick along the face that axis is cut, seaming chuck compression face is plane, and mixed material compacting is then added more The each section of scattered block 1., briquetting pressure 70MPa-150MPa, such as value 80MPa, 1. disperse block made of compacting is reserved The straight section of 1mm-10mm, such as value 10mm；

1. pressed two valves disperse block passes through 150 DEG C of dryings of highest and fires through 1500 DEG C -1700 DEG C of highest, such as It is burnt at 1700 DEG C；

The straight section of two valve disperse blocks 1. is ground off, it is desirable that guarantee precision, by the 1. direct physics of two valve disperse blocks after polishing The production of disperse block 1. can be completed in combination.

3.1.2 as shown in figure 11, the production with cylindrical hole disperse block 1.

It stocks up by formula, chooses any formula in example, all particulate materials and fine powder material are uniformly mixed respectively, are being stirred All particulate materials, then additional poly-vinyl alcohol solution are added in machine, remaining fine powder material is added after mixing, it, will after mixing 3min The spare molding of material；

1. disperse block is designed to symmetrical two parts, molding mode is single side by molded, and compression face is disperse block Along the face that axis is cut, according to brick production mold, design diameter is along its length on the center line of seaming chuck compression face The semicolumn protrusion of 20mm-80mm, is such as designed to the semicolumn of 50mm, and include the straight section of 1mm-10mm, as straight section value is high Spend 8mm, be then added each section of mixed material compacting disperse block 1., briquetting pressure 70MPa-150MPa, compacting and At disperse block 1. reserve 1mm-10mm straight section, 1. straight section that disperse block is reserved must be with the straight section of seaming chuck semicolumn protrusion Highly it is identical can just produce cross section be the circular core-broken of specification 4.；

1. pressed two valves disperse block passes through 150 DEG C of dryings of highest and fires through 1500 DEG C -1700 DEG C of highest, such as Firing temperature is 1520 DEG C；

The straight section of two valve disperse blocks 1. is ground off, it is desirable that guarantee precision, by the 1. direct physics of two valve disperse blocks after polishing Combination, can be completed the production of disperse block 1., and self-assembling formation one diameter in center is the cylindrical hole of 20-80mm.

The production method of 3.2 air bricks

3.2.1 make disperse block as shown in Figure 2 1. without core-broken 4., with chamotte seam air brick

3., 3. 7. pedestal stays gas chamber up and down to production pedestal, 5. gas passage selection slit formula, is poured, warp first 1500 DEG C -1700 DEG C are fired, and material selects traditional gas permeable brick castable；

Chamotte is smeared into the outer surface of the disperse block combined 1. and is pressed into air brick metal shell, it is desirable that chamotte thickness For 0.1mm-3mm, 150 DEG C of dryings of highest are then passed through；

3. pedestal is passed through fixture be fixed on above-mentioned air brick corresponding position and it is fixed on a vibration table after, it is 3. all in pedestal Enclose perfusion seam castable 2., 2. seam castable used is traditional gas permeable brick castable, seam castable is 2. raw materials used Critical granularity is no more than the half of seam castable 2. minimum thickness, and is no more than 6mm；

It is toasted after 50-70 DEG C of maintenance through 150 DEG C of highest；

Welding air brick rear cover and tail pipe complete the production.

3.2.2 make disperse block as shown in Figure 4 1. without core-broken 4., with castable seam air brick

3., 3. 7. pedestal stays gas chamber up and down to production pedestal, 5. gas passage selection slit formula, is poured, warp first 1500 DEG C -1700 DEG C are fired, and material selects traditional gas permeable brick castable；

By two valve disperse blocks 1. physical combination, and the high-strength nylon line tying with diameter less than 0.5mm, then by pedestal 3., the disperse block after combination be 1. fixed in air brick metal shell together, and it is fixed on a vibration table；

Pedestal 3. and disperse block 1. 2., 2. seam castable used is that traditional gas permeable brick pours to circumfusion seam castable Material feeding, 2. raw materials used critical granularity is no more than the half of seam castable 2. minimum thickness to seam castable, and not More than 6mm；

It is toasted after 50-70 DEG C of maintenance through 220 DEG C of highest；

Welding air brick rear cover and tail pipe complete the production.

3.2.3 it makes disperse block as shown in Figure 3 and 1. has core-broken 4., with chamotte seam air brick

3., 3. 7. pedestal stays gas chamber up and down to production pedestal, 5. gas passage selection slit formula, is poured, warp first 1500 DEG C -1700 DEG C are fired, and material selects traditional gas permeable brick castable；

The outer surface of the disperse block with cylindrical hole 1. will be combined to smear chamotte and be pressed into air brick metal shell, It asks chamotte with a thickness of 0.1mm-3mm, then passes through 150 DEG C of dryings of highest；

The above-mentioned semi-finished product through overbaking are fixed on a vibration table, and perfusion high-performance is poured in the cylindrical hole of disperse block 1. Material feeding, it is desirable that the critical granularity of castable is no more than 6mm, and the cold conditions flexural strength at a temperature of 1620 DEG C is more than or equal to 36MPa, phase Answering Linear change rate is between+0.08% to+0.25%, and refractoriness is more than or equal to 1810 DEG C, after being poured high-performance castable Then the natural coagulation under 20 DEG C of -35 DEG C of environment is toasted through 150 DEG C of highest；

By pedestal by fixture be fixed on above-mentioned air brick corresponding position and it is fixed on a vibration table after, pedestal 3. around Seam castable is perfused 2., 2. seam castable used is traditional gas permeable brick castable, seam castable is 2. raw materials used to face Boundary's granularity is no more than the half of seam castable 2. minimum thickness, and is no more than 6mm；

It is toasted after 50-70 DEG C of maintenance through 150 DEG C of highest；

Welding air brick rear cover and tail pipe complete the production.

3.2.4 disperse block as shown in Figure 5 1. band core-broken is made, with castable seam air brick

3., 3. 7. pedestal stays gas chamber up and down to production pedestal, 5. gas passage selection slit formula, is poured, warp first 1500 DEG C -1700 DEG C are fired, and material selects traditional gas permeable brick castable；

By two valve disperse blocks 1. physical combination, and the high-strength nylon line tying with diameter less than 0.5mm, after then combining Disperse block be 1. fixed in air brick metal shell together, and it is fixed on a vibration table；

In disperse block, 1. 2., 2. seam castable used is traditional gas permeable brick castable to circumfusion seam castable, is connect Stitching castable, 2. raw materials used critical granularity is no more than the half of seam castable 2. minimum thickness, and is no more than 6mm；

It is toasted after 50-70 DEG C of maintenance through 150 DEG C of highest after having poured the castable；

It is again that above-mentioned product of accomplishing are fixed on a vibration table, high-performance castable is perfused in the cylindrical hole of disperse block 1., The critical granularity of castable is asked to be no more than 6mm, the cold conditions flexural strength at a temperature of 1620 DEG C is more than or equal to 36MPa, and corresponding line becomes Rate is between+0.08% to+0.25%, and refractoriness is more than or equal to 1810 DEG C, be poured after high-performance castable 20 DEG C- Then natural coagulation under 35 DEG C of environment is toasted through 150 DEG C of highest；

By pedestal by fixture be fixed on above-mentioned semi-finished product corresponding position and it is fixed on a vibration table after, pedestal 3. around Seam castable is perfused 2., 2. seam castable used is traditional gas permeable brick castable, seam castable is 2. raw materials used to face Boundary's granularity is no more than the half of seam castable 2. minimum thickness, and is no more than 6mm；

It is toasted after 50-70 DEG C of maintenance through 150 DEG C of highest；

Welding air brick rear cover and tail pipe complete the production.

Claims (2)

1. impervious combined cone disperse air brick, it is characterized in that: the structure of air brick includes: to be composed of two parts The characteristics of taper disperse block, pedestal, several parts of seam castable of the cross section for circle, taper disperse block is longitudinal by it along axis It is divided into symmetrical two parts, and directly physical combination forms, the disperse block being composed and pedestal are physically contacted, and have between the two Gas chamber is filled between disperse block and air brick metal shell, between pedestal and air brick metal shell with seam castable.

2. impervious combined cone disperse air brick according to claim 1, it is characterized in that: seam castable thinnest part With a thickness of 8mm-30mm, the gas passage of pedestal is slit, and the height of pedestal is 80mm-250mm, have on pedestal together or Twice anchor slot, pedestal profiles can be tapered or cylindrical.