CN1117033A - Diamond spar series microporous ceramic filler - Google Patents
Diamond spar series microporous ceramic filler Download PDFInfo
- Publication number
- CN1117033A CN1117033A CN 95106390 CN95106390A CN1117033A CN 1117033 A CN1117033 A CN 1117033A CN 95106390 CN95106390 CN 95106390 CN 95106390 A CN95106390 A CN 95106390A CN 1117033 A CN1117033 A CN 1117033A
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- China
- Prior art keywords
- corundum
- weight fraction
- filler
- hours
- diamond spar
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/636—Polysaccharides or derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
Abstract
The microporous ceramic filler of diamond spar series not has only excellent corrosion resistance and great compressive strength, but also has excellent mass-transfering surface, ideal surface regeneration rate, and porosity up to 50%. Its material components include corundum (including chromium corundum, white corundum and brown corundum), cohesive, dextrin and humectant. The production is passed through mixing, extruding, moulding, desiccating and high-temp. sintering to produce the diamond spar series microporous ceramic filler.
Description
The invention belongs to packing tower filler in the Chemical Manufacture.
Packing tower is the tower equipment that adopts usually in the Chemical Manufacture, it has simple in structure, characteristics such as cheap, in packing tower except the spray equipment that will design tower with reasonably the column internals, choosing suitable tower packing under certain operation condition is one of key factor of packing tower operational quality, different in kind according to medium that packing tower is handled, granular filler or the structured packing that can select for use the corresponding material that is suitable for to make, ceramic packing, plastic filler and Stainless Steel Helices often are selected as corrosion-resistant filling, but because of ceramic packing, plastic filler, the surface tissue smoother of Stainless Steel Helices, make the formation of mass transfer surfaces and more new capital be subjected to being difficult to restrain the influence of newspaper, cause the processing power of tower, operation efficiency all obviously reduces, more expensive or other reason also is restricted and the efficient silk guiding principle corrugated regular filler of being made by the wire guiding principle of unlike material is because of price, the investigator of the tower packing that therefore, has is also at the surface tissue of improvement granular filler and the screening operation of new type high-efficient packing of going in for the study.
The objective of the invention is to filter out a kind of tower packing with microvoid structure, the existing diamond spar series microporous ceramic filler that oneself filters out, it not only has excellent corrosion resisting performance, also because the existence of micropore has more good mass transfer surfaces structure and ideal Surface Renewal speed, the microcellular filler of having no precedent structure is provided, its porosity can be up to 50%, and it is big to have ultimate compression strength in addition, is difficult for characteristics such as fragmentation.
The raw material of diamond spar series microporous ceramic filler consists of corundum (comprising chromium corundum, white fused alumina, brown corundum) binding agent, wetting agent and dextrin, through mixing successively, extrusion molding, operation such as drying, high temperature sintering makes said microporous ceramic filler again.
The proportioning raw materials of the diamond spar series microporous ceramic filler that the present invention proposes is described below:
The major ingredient of diamond spar series microporous ceramic filler is that corundum (comprises chromium corundum, white fused alumina, the palm fibre corundum), has the intensity height, corrosion-resistant, resistant to elevated temperatures characteristics, therefore also be the skeleton composition of microcellular filler, in batching, select chromium corundum for use, in white fused alumina or the brown corundum any all can, also can any ratio be mixed, account for 65~80% (weight fraction) of raw material gross weight, the particle diameter of corundum is 16 orders~120 orders, and the size of particle diameter and size distribution situation all can influence the numerical value of porosity, and porosity can be between 20~50% generally speaking.
Binding agent is one of basic material of diamond spar series microporous ceramic filler, it is by feldspar, clay and talcum powder are mixed and form, mixed ratio is feldspar 50~70% (weight fraction) clay 20~40% (weight fraction) talcum 2~15% (weight fraction), its andesine belongs to the flux raw material, and at high temperature the feldspar molten mass has bigger viscosity, can play effect of high temperature thermoplastic and high temperature cementation, prevent high temperature deformation, in sintering process, play fluxing action; Clay then has unique plasticity-and associativity, shapeable moulding after the water transfer, become fine and close hard behind the sintering, help the sintering of filler base substrate and the raising of physical strength, binding agent accounts for the raw material gross weight in batching 13~20% (weight fraction) in addition, in batching, also to add the dextrin of 3~8% (weight fraction) that account for the raw material gross weight, and the wetting agent that accounts for 3~9% (weight fraction) of raw material gross weight, in batching, use wetting agent as with water glass.
The process for making of the diamond spar series microporous ceramic filler that the present invention proposes is for (can be chromium corundum by the good corundum powder of proportioning raw materials weighing earlier, white fused alumina or brown corundum, also can be the corundum that is mixed), binding agent, dextrin and wetting agent, then with corundum with binding agent mixes and mix is even; Add dextrin and wetting agent again and continue uniform mixing,, make the base substrate of required filler, at last body drying is incorporated into kiln and made required filler, obtain finished product through cooling and kiln discharge again through high temperature sintering through corresponding mould extrusion molding.
Drying and the sintering process of making microporous porcelain filler are earlier base substrate to be gone ahead of the rest under 70 ℃ of conditions dry 24 hours, under 110 ℃ of conditions, continue to go into then in dry 10 hours kiln again, be warming up to 1320 ℃ ± 20 ℃ with 20 ℃/hour of Wen Suwei again, sintering begins the nature cooling after 72 hours, can obtain required filler by kiln discharge in the time of approximately below 50 hours kiln temperature drops to 50 ℃, the sintering whole process is about 132 hours.
Make the extrusion molding process of microporous porcelain filler, but can also single piece production of continuous production, the geometrical shape of mould and space structure have determined the type of filler, the type of the microporous porcelain filler that makes at present has:
Fig. 1 is a Raschig ring filler synoptic diagram; Its ring is high to be equated with the ring external diameter, and wall thickness then determines according to encircling external diameter,
Fig. 2 is a Great Wall ring filler synoptic diagram; Its ring is high to equate that with the ring external diameter wall thickness then according to the decision of ring external diameter, has 4~8 corresponding breach, and gap width is 1: 2 with the ratio of protuberance width, and notch depth is 1/4~1/3 of the ring external diameter,
Fig. 3 is a cascade ring filler synoptic diagram; It highly is 1/2~2/3 of ring external diameter, and the outstanding one expansion mouth of taking advantage of a situation and extending also can be considered convex in its lower end, its internal diameter is suitable with the ring external diameter, highly for ring is high by 1/5~1/4, is 4~6 to the uniform fin of the inboard importing of ring, wall thickness is then according to the decision of ring external diameter
Fig. 4 is a Pall ring filler synoptic diagram; Its ring is high to be equated with the ring external diameter, and wall thickness is then according to the decision of ring external diameter, uniform two rows of its periphery to 4~6 of the uniform fins of the inboard importing of ring, open height (fin height) be about encircle high by 1/5,
Fig. 5 is a porous hollow sphere filler synoptic diagram; It is that hollow ball system is synthetic by two hemisphere, sphere diameter is decision as required then, three-dimensional at spheroid respectively has a garden shape through hole by the centre of sphere, the symmetry centre (just spheroid being rotated 45 ° central position along x axle and y axle respectively) that has the spherome surface in hole, three gardens as benchmark between each quadrant also respectively has a garden shape through hole by the centre of sphere, spherome surface has 14 holes, (sphere diameter hour then has only 6 holes of three-dimensional)
Fig. 6 is a square saddle type filler synoptic diagram; Slightly like saddle, its section is approximately half garden shape to its profile, and the skeletal lines of lateral inner edge and outer rim is the half garden arc in concentric garden, forms whole omiting like saddle-shaped structure,
Fig. 7~Fig. 9 is the corrugated plate packing synoptic diagram; Fig. 7 is the monolithic waved plate, and Fig. 8 is the vertical view after assembling, and Fig. 9 is its sectional drawing, and the corrugated plate packing after the assembling can not have illustrated outer ring yet, can be fixed by sintering between plate and the plate.
The diamond spar series microporous ceramic filler that proposes by the present invention with original be that the filler of raw material production is compared with pottery, plastics, metal sheet, with the Raschig ring is example, at (table one) on the hydrodynamic performance on mass-transfer performance (table two) new breakthrough and raising has been arranged all.
Getting the powder granule degree is 16 orders~46 purposes palm fibre corundum, 1000 grams, binding agent 200 grams, dextrin 50 grams, wetting agent (water glass) 60 grams, earlier that brown corundum and the also abundant mix of binding agent mixing is even, then, add dextrin and wetting agent again and continue mix even, extrusion molding makes 20 * 20 * 3 Raschig ring filler base substrates in the Raschig ring mould, under 70 ℃ of conditions dry 24 hours earlier, under 110 ℃ of conditions dry 10 hours again, insert in the luxuriant good fortune stove and carry out sintering, be warming up to 1320 ℃ of beginning nature coolings behind 72 hours sintering with 20 ℃/hour of Wen Suwei, when furnace temperature was reduced to below 50 ℃ in 50 hours, take out again, make diamond spar series microporous ceramic raschig rings filler.Embodiment two:
Getting the powder granule degree is that 60 orders~120 purposes are mixed corundum 2000 grams (wherein from corundum 1000 grams, chromium corundum 500 grams, palm fibre corundum 500 grams), binding agent 460 grams, dextrin 160 grams, wetting agent (water glass) 190 grams, earlier corundum is mixed also abundant mix with binding agent even, then, add dextrin and wetting agent again and continue mix even, through extrusion molding in the semisphere mould, and with two bonding balling-up of hemisphere, it is that the wall thickness that has φ 6 through holes at three-dimensional of 30mm is the hollow ball filler base substrate of 6mm that punching makes diameter, through under 70 ℃ of conditions dry 24 hours and insert in the kiln and under 110 ℃ of conditions, continued dry 10 hours again, be warming up to 1300 ℃ with 20 ℃/hour of Wen Suwei, beginning nature cooling behind 72 hours sintering, kiln discharge in the time of again below 50 hours kiln temperature drops to 50 ℃ makes diamond spar series microporous ceramic porous hollow ball filler.
Claims (2)
1. diamond spar series microporous ceramic filler with micropore, its corundum that consists of 16 orders~120 purposes 65~80% (weight fraction) (refers to chromium corundum, any in white fused alumina and the brown corundum or by above-mentioned three kinds of corundum with the arbitrary proportion blended corundum that is mixed), 13~20% (weight fraction) by feldspar, the binding agent that clay and talcum powder are mixed and form, the wetting agent (water glass) of the dextrin of 3~8% (weight fraction) and 3~9% (weight fraction), elder generation is with corundum and binding agent mixes and mix is even, add dextrin successively again and the wetting agent mix is even, obtain the filler base substrate through the mould extrusion molding, drying is 24 hours under 70 ℃, after 110 ℃ are continued dry 10 hours down, insert in the kiln again, be warming up to 1320 ± 20 ℃ with 20 ℃/hour of Wen Suwei, sintering begins the nature cooling after 72 hours, when reducing to below 50 ℃ in 50 hours, kiln Wen Yuejing gets final product kiln discharge, the sintering whole process was about about 132 hours, prepared diamond spar series microporous ceramic filler has Raschig ring, the Great Wall ring, cascade ring, Pall ring, porous hollow sphere, square saddle and Mellapak packing
2. according to the said diamond spar series microporous ceramic filler of claim 1, wherein said by feldspar, clay and talcum its weight of binding agent that forms that is mixed consists of;
Feldspar, 50~70% (weight fraction)
Clay 20~40% (weight fraction)
Talcum 2~15% (weight fraction).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN95106390A CN1062246C (en) | 1994-10-14 | 1995-06-14 | Diamond spar series microporous ceramic filler |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN94223047.7 | 1994-10-14 | ||
CN94223047 | 1994-10-14 | ||
CN95106390A CN1062246C (en) | 1994-10-14 | 1995-06-14 | Diamond spar series microporous ceramic filler |
Publications (2)
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CN1117033A true CN1117033A (en) | 1996-02-21 |
CN1062246C CN1062246C (en) | 2001-02-21 |
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CN95106390A Expired - Fee Related CN1062246C (en) | 1994-10-14 | 1995-06-14 | Diamond spar series microporous ceramic filler |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100337975C (en) * | 2005-10-28 | 2007-09-19 | 浙江大学 | Preparation method of brown corundum bollow ball |
CN100443439C (en) * | 2006-12-28 | 2008-12-17 | 杨剑 | High-strength light ceramic filler |
CN102249715A (en) * | 2011-05-31 | 2011-11-23 | 浙江大学 | Hollow chrome corundum spheres and preparation method thereof |
CN102295463A (en) * | 2011-05-31 | 2011-12-28 | 浙江大学 | Zirconia corundum hollow sphere and preparation method thereof |
CN104647224A (en) * | 2015-01-30 | 2015-05-27 | 洛阳希微磨料磨具有限公司 | Preparation method for special binding agent for sand wheel manufacturing |
CN108908698A (en) * | 2018-06-29 | 2018-11-30 | 镇江宏运工具砂轮有限公司 | A kind of production method of bent-type permeable board with groove |
CN109928437A (en) * | 2019-03-12 | 2019-06-25 | 烟台大成塑业有限公司 | Treatment tank filler is without glue packaging technology |
CN115010470A (en) * | 2022-06-30 | 2022-09-06 | 江西全兴化工填料有限公司 | Method for producing chemical filler by using ceramic waste |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2032094U (en) * | 1988-05-26 | 1989-02-08 | 江西省萍乡市下埠乡耐酸工业瓷厂 | Safety clip for broken acble of a lifter |
GR1000390B (en) * | 1988-11-22 | 1992-06-30 | Comalco Alu | Ceramic microspheres |
CN1019359B (en) * | 1990-01-05 | 1992-12-09 | 李日政 | Porous packing made from light porcelain |
-
1995
- 1995-06-14 CN CN95106390A patent/CN1062246C/en not_active Expired - Fee Related
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100337975C (en) * | 2005-10-28 | 2007-09-19 | 浙江大学 | Preparation method of brown corundum bollow ball |
CN100443439C (en) * | 2006-12-28 | 2008-12-17 | 杨剑 | High-strength light ceramic filler |
CN102249715A (en) * | 2011-05-31 | 2011-11-23 | 浙江大学 | Hollow chrome corundum spheres and preparation method thereof |
CN102295463A (en) * | 2011-05-31 | 2011-12-28 | 浙江大学 | Zirconia corundum hollow sphere and preparation method thereof |
CN104647224A (en) * | 2015-01-30 | 2015-05-27 | 洛阳希微磨料磨具有限公司 | Preparation method for special binding agent for sand wheel manufacturing |
CN108908698A (en) * | 2018-06-29 | 2018-11-30 | 镇江宏运工具砂轮有限公司 | A kind of production method of bent-type permeable board with groove |
CN109928437A (en) * | 2019-03-12 | 2019-06-25 | 烟台大成塑业有限公司 | Treatment tank filler is without glue packaging technology |
CN115010470A (en) * | 2022-06-30 | 2022-09-06 | 江西全兴化工填料有限公司 | Method for producing chemical filler by using ceramic waste |
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Publication number | Publication date |
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CN1062246C (en) | 2001-02-21 |
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