CN1248980C - Method for fabricating alkali proof glassbeads and siln for production - Google Patents
Method for fabricating alkali proof glassbeads and siln for production Download PDFInfo
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- CN1248980C CN1248980C CNB2004100221621A CN200410022162A CN1248980C CN 1248980 C CN1248980 C CN 1248980C CN B2004100221621 A CNB2004100221621 A CN B2004100221621A CN 200410022162 A CN200410022162 A CN 200410022162A CN 1248980 C CN1248980 C CN 1248980C
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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Abstract
The present invention belongs to a method for producing glass balls for alkali-resistant glass fibers and a kiln thereof. The method of the present invention comprises: quartz sand, zircon sand, rutile, calcite, fluorite, potassium nitrate, sodium carbonate and clinkers used selectively are used as raw materials and auxiliary materials, and are crushed to prepare the mixture; the mixture is melted, cooled, clarified and made into balls; finally, the balls are annealed to make the alkali-resistant glass balls with a high content of zirconium oxide. The kiln for melting the molten glass is a double-arch kiln composed of a heat exchange chamber, an inner large arch, an outer large arch, a small kiln, a gas nozzle, a smoke channel, a breast wall, a front face wall, a back face wall, a molten glass hole, a clarifying tank and a material feeding nozzle; the kiln adopts fused zirconium corundum bricks without shrinkage holes, and good-quality silica bricks as the inner liners or masonry of the melting tank, the inner large arch, the outer large arch, etc.; thus, the kiln has the advantages of stable melting temperature, small fluctuation, high quality of glass balls, low raw material consumption, low energy consumption and little environmental pollution, and can reduce the production cost by about 10%; the wire drawing rate of the kiln can reach higher than 86%. The present invention overcomes the defects of great fluctuation in the kiln, great temperature difference, poor quality of glass balls, high production cost, etc. existing in the background art.
Description
Technical field
The invention belongs to the production method and the production kiln of the alkali-resistant glass marble in the building materials industry.Particularly a kind of with fuelled with natural gas, adopt the double arched kiln stove to do smelting furnace production to contain high zirconia (ZrO
2) the production method of alkali-resistant glass marble.Its glass sphere especially is suitable as raw material and is used to produce alkali resistant glass fibre.
Background technology
Alkali resistant glass fibre is to make the glass fiber reinforced cement goods enhancing base material of (being called for short GRC), because this kind goods have light weight, intensity height, do not fire, designability is strong, easy-formation, long service life, cost is better than advantages such as magnesium cement far below glass reinforced plastic, magnesium cement and long-term behaviour.At home, be widely used in outer building and the civil engineering work, not only be used for cold district, and extend to the more existing product scope of making by glass reinforced plastic formula magnesium cement usually as materials for wall.But because zirconic content and contains titanium oxide (TiO about 6% generally up to more than 14% in its Chemical Composition
2), therefore, temperature of fusion is up to more than 1600 ℃ when producing it as the glass sphere of raw material, and it is bigger to found difficulty.At present, the method that is used to produce this kind glass ball is to adopt the production of all-electric melting kiln, though this mode of production scaling loss and fly upward the loss less, but exist industrial scale little, every kiln only can be established 1～2 group of apparatus for making pearl ball (2～4T/ daily output), and the glass metal surface temperature is low in the power consumption height, stove, the temperature field is inhomogeneous, and poor product quality, bubble is more and disadvantage such as production cost height.At these disadvantages, the applicant was 02134063.3 at application number once, denomination of invention replaces electric melting furnace to produce alkali-resistant glass marble as melting furnaces for after disclosing a kind of horse shoe flame kiln that tradition is used to found alkali-free or c-glass marble in the patent documentation of " a kind of production method of alkali-resistant glass marble " and transforming.Though this method adopts electric melting furnace to reduce energy consumption to a great extent; Improved quality product, productivity and scale and benefit, made production cost descend about 50%.But because the flame of horse shoe flame kiln is horseshoe-shape in the kiln internal combustion, promptly arriving kiln intracoelomic cavity length 2/3rds places at side burning, flame turns, from the opposite side combustion gas, commutation once every about 30 minutes, therefore, the kiln temperature fluctuation is big, tangible temperature head appears in width in the kiln pond, and furnace pressure is big, admixtion flies upward greatly, and energy consumption is still higher, and (the Sweet natural gas consumption reaches 640m
3/ ton glass ball) long-width ratio of kiln body is less in addition, generally only be 1.5～1.7, cause glass metal melting time in kiln shorter, the glass sphere quality of being produced is still undesirable, this production method also exists material burst temperature lower in addition, both easily produced the crystallization devitrification, and influenced the balling ratio of glass ball again, and have a strong impact on quality product; This method is produced the glass ball and is used for wire drawing, its wire drawing rate only about 83.0%.
Summary of the invention
The objective of the invention is at the existing disadvantage of background technology, improve the production method and the production kiln of a kind of alkali-resistant glass marble of design, reduce energy consumption and production costs to reach further, stablize the glass melting temperature in the kiln, improve the quality of glass metal and glass ball, and then reach the purpose that improves the wire drawing rate; Purpose is to reduce the furnace pressure when founding and the degree of flying upward of raw material in addition, with relative minimizing raw material consumption and to the pollution of environment.
Solution of the present invention is: with conventional glass furnace---double arched kiln stove as the production glassware, transform the back to be used to found alkali-proof glass liquid, promptly keep former kiln agent structure, remove output material road and vessel shaper part and change and be made as that feeding is chewed and corresponding apparatus for making pearl ball; Improve simultaneously wall liner material etc. in the kiln pond high thermal resistance and masonry quality, puzzle joint is controlled in the 1mm.Thereby the reversal burning changed into cover stable burning in the kiln, reduce the temperature difference in the stove, simultaneously the glass melting temperature of kiln is brought up to 1580～1640 ℃; Strengthen long-width ratio, prolong the melting time of glass metal in kiln, to improve its melting quality and to reduce the degree of flying upward of admixtion; And overcome that former kiln body high thermal resistance is poor, the life-span is short, is not suitable for being used to found disadvantages such as alkali-proof glass liquid.Thereby realize its purpose.Because of production method of the present invention comprises:
A, get the raw materials ready:, will contain SiO by total batch weight per-cent
2〉=99% quartz sand 40.0～65.0% contains ZrO
263～68% zircon sand 18.0～32.0% contains TiO
285～90% rutile 5.5～8.0%, CaO content are 55～60% calcite 5.0～9.0%, contain CaF
290～96% fluorite 0.8～2.0% and purity are not less than 99.0% soda ash 18.0～27.0% and purity and are not less than 90.0% saltpetre 5.0～7.2%, cross 20～40 mesh sieves behind the separated pulverizing, and weighing is stand-by;
B, just mixed: a. saltpetre, fluorite, the rutile that above-mentioned weighing is stand-by mixes in proportion, and be stand-by; B. simultaneously that all the other are former, auxiliary material also mixes in proportion, and is stand-by;
C, preparation compound: start stirrer, the compound that will just mix through above-mentioned " a ", " b " alternately or successively add in the stirrer waits to mix the back water spray, and the water ratio of compound is formulated in 3～5% scopes discharging after mixing again;
D, fusion cast glass liquid: will through the C prepared mixture is sent into double arched kiln stove with fuelled with natural gas by feeder in, in 1580 °～1640 ℃ temperature ranges, found into glass metal;
E, cooling, clarification, discharging: the high temp glass liquid of founding flows into settling pond through the dog-hole of melting pool bottom, flow into after cooling, clarification, the homogenizing feeding chew, again through discharge port with the form discharging of material strand and send into ball-making device; The temperature of material thigh is controlled in 1195 ° ± 10 ℃ scopes;
F, system ball: the material stock-traders' know-how cutting machine of sending into ball-making device is cut into blank, sends into the shaper moulding again, the glass ball warp anneal after the moulding, and promptly making by weight percentage, its Chemical Composition is: SiO
2: 57.0～62.0, ZrO
2: 13.8～17.5, TiO
2: 5.0～6.5, CaO:3.8～5.2, K
2O:2.0～3.0, Na
2O:11.5～13.5, Al
2O
3＜1.0, Fe
2O
3＜0.5 glass sphere.
The density of above-mentioned glass ball is 2.7～2.85g/cm
3, sphere diameter is φ 19.5～22.5mm.For further save energy, recycling alkali-proof glass waste residue, fiber, auxiliary material former, when the preparation compound, can add the grog of intending producing glass ball weight 10～35% to save.
And above-mentioned alkali-resistant glass marble production kiln, comprise Heat Room, port and be located at the burner nozzle of its underpart, the inside and outside big arch of arch, between inside and outside big arch, reach the flue on port top, sidepiece breastwork and opening for feed, forward and backward face wall, melting pool and Chi Kan thereof, settling pond and thermal insulation layer, resting support; Key is that also being provided with one group on the liquid level top of settling pond provides the feeding of system ball material thigh to chew, and the material thigh outlet bottom that feeding is chewed outside settling pond respectively is provided with a ball-making device; And melting pool, settling pond inwall and Chi Kan, dog-hole all adopt unit weight is 3.65～3.75g/cm
3High-quality do not have the shrinkage cavity Corhart Zac-block and make liner and masonry, its puzzle joint is all less than 1.0mm; The sidepiece breastwork, the inside and outside big arch of arch, forward and backward face wall all adopts and contains SiO
2The brick system of high quality silicon more than 96%.Described burner nozzle is taked left and right being symmetrical arranged, and each nozzle exit is long-pending to be (wide * height) 800～1200 * 230mm, and each spout is established 2～3 gas guns respectively.And the pond length of described melting pool is 4.0～7.0m, and it is long: wide=2～3: 1, and the dark 600～850mm in pond; The dog-hole sectional area then is 900～1600mm
2, Chi Kan is trapezoidal Chi Kan, high 300～420mm; Settling pond radius R 800～1300mm, the feeding that to establish 2～5 sectional areas be 200 * 170mm is chewed, and it is neat with high liquid level (HLL) that feeding is chewed inner top, and a material gang exit diameter φ 80mm.And its bottom of described dog-hole can exceed the 150～250mm setting of melting pool bottom, when being provided with bottom exceeding molten pool, Chi Kan can be set.
The present invention establishes Chi Kan or with the high-order setting of dog-hole, will expect that simultaneously the temperature of thigh is brought up to 1195 ° ± 10 ℃ owing to adopt not two arch stove fusion cast glass liquid of reversing combustion of the bigger and flame of length and width in the kiln pond.Thereby have that glass melting temperature is stable in the kiln, fluctuation is little, and glass ball quality height, its wire drawing rate can reach 86.2%, and material consumption quantity reduces about 4%, and a ton product air consumption descends more than 20%, and production cost descends about 10%, and characteristics such as environmental pollution is little.
Accompanying drawing and description of drawings
Fig. 1 produces with furnace construction synoptic diagram (B-B view) for the present invention;
Fig. 2 is vertical view (an A-A view).
Among the figure: 1, Heat Room, 2, port, 3, flue, 4, the combustion gas spout, 5, interior big arch, 6, outer big arch, 6-1, oblique arch, 7, dilatation joint, 8, thermal insulation layer, 9, feeding chews 9-1: material burst outlet, 10, settling pond, 11, dog-hole, 12, Chi Kan, 13, melting pool, 14, resting support, 15, breastwork, 16, gable wall, 17, ball-making device, 18, opening for feed, 19, rear face wall.
Present embodiment is with the example that is formulated as of the required compound of every production 100kg alkali-resistant glass marble: each is former, the auxiliary material consumption is respectively: quartz sand 57.0kg, wherein: SiO
2〉=99.0%, Fe
2O
3＜0.06%, Al
2O
3＜0.2%, zircon sand 26.5kg, wherein: contain ZrO
265%, TiO
2＜2.0%, Al
2O
3＜0.8%, rutile 7.3kg, wherein: contain TiO
287%, ZrO
2＞1.5%, Al
2O
3＜1.0%, calcite 8.5kg, wherein; CaO contains 5.6%, SiO
2＜15%, Fe
2O
3＜0.6%, contain CaF
294% fluorite 1.8kg, purity is 99.6% soda ash 23.5kg, purity is 94.0% saltpetre 6.5kg.Each composition is pulverizes the powder that 40 mesh sieves are crossed in the back.
Mix material at the beginning of saltpetre, fluorite and rutile and all the other is former, auxiliary material is mixed into two kinds respectively, it is alternately sent in the stirrer mix again; Add the 3kg clear water at last, continue to stir discharging after 3 minutes;
To prepared mixture successively, send in the double arched kiln stove melting pool 13 by opening for feed 18 through feeder, under 1620 ° ± 10 ℃ temperature, found into glass metal, glass metal is through dog-hole 11, flow into settling pond 10, after cooling, clarification, top glass liquid is chewed 9 material thigh outlet 9-1 through feeding and is sent in the ball-making device 17 with the form of material strand, and making diameter is the glass ball of φ 20 ± 1.0mm; The temperature of material thigh is controlled in 1195 ° ± 5 ℃ scopes.Glass ball warp cooling annealing.
Present embodiment production double arched kiln stove: Heat Room 1 is 2 (length * wide * height) 1940 * 1980 * 10175mm Heat Rooms; 3 sections each areas of flue (wide * height), 800 * 450mm, two ports (secondary air duct), 2 inlet end sectional areas, 800 * 570mm, the axially long 1800mm that is; Combustion gas spout 4 left and right two sectional areas are (wide * height) 800 * 230mm; Outer big arch 6 main parts (long * wide) 7600 * 3590mm, the oblique arch 6-1 of afterbody (long * wide) 1000 * 3690mm, arch radius is R3500mm, interior big arch 5 (long * wide) 7000 * 3690mm, arch radius R3250mm; Both sides breastwork 15 (long * wide * thick) is 7600 * 710 * 300mm; Gable wall 16 (high * wide) 1580 * 3690mm, rear face wall 19 is an aliform, left and right two bodies of wall are (high * wide) 1580 * 1395mm, melting pool 13 (long * wide * dark) 6360 * 2750 * 800mm, pond bank 12 horizontal long 2750mm, high 400mm, the thick 300mm in top, the thick 400mm in bottom; Dog-hole 11 (length * wide * height) 900 * 300 * 300mm, settling pond 10 radius R 1200mm, dark (glass metal) 600mm in pond establishes three inner chambers and chews 9 for the feeding of (length * wide * height) 890 * 200 * 170mm, material gang outlet 9-1 diameter phi 80mm; The corresponding apparatus for making pearl ball 17 of establishing the long 800mm of three D types, three roller spirals.Present embodiment can be produced 9～12 tons daily, contains ZrO
214.5% alkali-resistant glass marble.
Each Chemical Composition former, auxiliary material is constant in embodiment 1, produce every 100kg glass ball, take by weighing 53.7kg quartz sand, 32.5kg zircon sand, 7.1kg rutile, 7.45kg calcite, 1.9kg fluorite, 28kg soda ash and 6.5kg saltpetre are mixed with mixed powder, under the processing condition of embodiment 1, can produce and contain ZrO
2The alkali-resistant glass marble of 17.O%.
Raw material composition in pressing embodiment 1, take by weighing respectively by producing 100kg glass ball: quartz sand 45.3kg, zircon sand 22.4kg, rutile 5.3kg, calcite 4.7kg, fluorite 1.5kg, soda ash 19.5kg, saltpetre 4.6kg, after being mixed with mixed powder, adding 30kg produces the close grog of glass ball composition with plan, founds under 1610 ° ± 10 ℃ temperature, can make to contain ZrO
2Alkali-resistant glass marble about 14.2%.
Claims (7)
1, a kind of production method of alkali-resistant glass marble; It is characterized in that this method comprises:
A, get the raw materials ready:, will contain SiO by total batch weight per-cent
2〉=99% quartz sand 40.0～65.0% contains ZrO
263～68% zircon sand 18.0～32.0% contains TiO
285～90% rutile 5.5～8.0%, CaO content are 55～60% calcite 5.0～9.0%, contain CaF
290～96% fluorite 0.8～2.0% and purity are not less than 99.0% soda ash 18.0～27.0% and purity and are not less than 90.0% saltpetre 5.0～7.2%, cross 20～40 mesh sieves behind the separated pulverizing, and weighing is stand-by;
B, just mixed: a. saltpetre, fluorite, the rutile that above-mentioned weighing is stand-by mixes in proportion, and be stand-by; B. simultaneously that all the other are former, auxiliary material also mixes in proportion, and is stand-by;
C, preparation compound: start stirrer, the compound that will just mix through above-mentioned " a ", " b " alternately or successively add in the stirrer waits to mix the back water spray, and the water ratio of compound is formulated in 3～5% scopes discharging after mixing again;
D, fusion cast glass liquid: will through the C prepared mixture is sent into double arched kiln stove with fuelled with natural gas by feeder in, in 1580 °～1640 ℃ temperature ranges, found into glass metal;
E, cooling, clarification, discharging: the high temp glass liquid of founding flows into work pool through the dog-hole of melting pool bottom, flow into again after cooling, clarification, the homogenizing feeding chew, again through discharge port with the form discharging of material strand and send into ball-making device; The temperature of material thigh is controlled in 1195 ° ± 10 ℃ scopes;
F, system ball: the material stock-traders' know-how cutting machine of sending into ball-making device is cut into blank, sends into the shaper moulding again, the glass ball warp anneal after the moulding, and promptly making by weight percentage, its Chemical Composition is: SiO
2: 57.0～62.0, ZrO
2: 13.8～17.5, TiO
2: 5.0～6.5, CaO:3.8～5.2, K
2O:2.0～3.0, Na
2O:11.5～13.5, Al
2O
3＜1.0, Fe
2O
3＜0.5 glass sphere.
2, press the production method of the described alkali-resistant glass marble of claim 1; The density that it is characterized in that described glass ball is 2.7～2.85g/cm
3, sphere diameter is φ 19.5～22.5mm.
3, press the production method of the described alkali-resistant glass marble of claim 1; It is characterized in that when the preparation compound, can adding the grog of intending producing glass ball weight 10～35%.
4, by the described alkali-resistant glass marble production of claim 1 kiln, comprise Heat Room, port and be located at the burner nozzle of its underpart, the inside and outside big arch of arch, between inside and outside big arch, reach the flue on port top, sidepiece breastwork and opening for feed, forward and backward face wall, melting pool and Chi Kan thereof, settling pond and thermal insulation layer, resting support; It is characterized in that also being provided with one group on the liquid level top of settling pond provides the feeding of system ball material thigh to chew, the material thigh outlet bottom that feeding is chewed outside settling pond respectively is provided with a ball-making device; And melting pool, settling pond inwall and Chi Kan, dog-hole all adopt the unit weight amount is 3.65～3.75g/cm
3High-quality do not have the shrinkage cavity Corhart Zac-block and make liner and masonry, its puzzle joint is all less than 1.0mm; The sidepiece breastwork, the inside and outside big arch of arch, forward and backward face wall all adopts and contains SiO
2The brick system of high quality silicon more than 96%.
5, by the described alkali-resistant glass marble production of claim 4 kiln; It is characterized in that described burner nozzle takes left and right being symmetrical arranged, each nozzle exit is long-pending to be 800～1200 * 230mm, and each spout is established 2～3 gas guns respectively.
6, by the described alkali-resistant glass marble production of claim 4 kiln; The pond length that it is characterized in that described melting pool is 4.0～7.0m, and it is long: wide=2～3: 1, and the dark 600～850mm in pond; The dog-hole sectional area then is 900～1600mm
2, Chi Kan is trapezoidal Chi Kan, high 300～420mm; Settling pond radius R 800～1300mm, the feeding that to establish 2～5 sectional areas be 200 * 170mm is chewed, and it is neat with high liquid level (HLL) that feeding is chewed inner top, and a material gang exit diameter φ 80mm.
7, by the described alkali-resistant glass marble production of claim 4 kiln; It is characterized in that its bottom of described dog-hole can exceed melting pool bottom 150～250mm and be provided with, when being provided with bottom exceeding molten pool, Chi Kan can be set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100221621A CN1248980C (en) | 2004-03-30 | 2004-03-30 | Method for fabricating alkali proof glassbeads and siln for production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100221621A CN1248980C (en) | 2004-03-30 | 2004-03-30 | Method for fabricating alkali proof glassbeads and siln for production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1562835A CN1562835A (en) | 2005-01-12 |
| CN1248980C true CN1248980C (en) | 2006-04-05 |
Family
ID=34479935
Family Applications (1)
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|---|---|---|---|
| CNB2004100221621A Expired - Fee Related CN1248980C (en) | 2004-03-30 | 2004-03-30 | Method for fabricating alkali proof glassbeads and siln for production |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5195753B2 (en) * | 2007-07-02 | 2013-05-15 | 旭硝子株式会社 | Glass melting kiln and glass product manufacturing method |
| CN101531457B (en) * | 2009-04-17 | 2011-05-11 | 自贡市邓关玻璃纤维有限公司 | Production formula for alkali-resistant glass marble, production method and production kiln thereof |
| CN101870554B (en) * | 2010-06-11 | 2012-09-26 | 自贡市鼎盛新材料有限公司 | Preparation device for alkali-resistant glass balls and glass fibers |
| CN102140005B (en) * | 2010-11-25 | 2013-01-16 | 华尔润玻璃产业股份有限公司 | Horizontal flame melting furnace |
| CN104743767B (en) * | 2013-12-30 | 2017-06-06 | 肖自江 | Energy-saving environment-friendly glass melting method and glass melter |
| CN106746500A (en) * | 2016-12-27 | 2017-05-31 | 东旭科技集团有限公司 | A kind of flame space of all-oxygen combustion kiln, all-oxygen combustion kiln and the method for preparing glass metal |
| CN109404924A (en) * | 2018-11-23 | 2019-03-01 | 浙江物华天宝能源环保有限公司 | A kind of abraum salt high-temperature fusion oxygen blast kiln |
| CN109264965A (en) * | 2018-12-01 | 2019-01-25 | 卢爱民 | Environment-friendly high-efficiency energy-saving stores heat exchange type glass-melting furnace |
| CN109721222B (en) * | 2019-02-19 | 2022-03-04 | 东旭光电科技股份有限公司 | Glass kiln and control method thereof |
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2004
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