摘要:
A hydraulic plant (1) for presses, in particular for presses (2) for manufacturing ceramic products, the presses (2) being of the type comprising a presser unit (3) provided with at least one hydraulic cylinder (4) for pressing products; the plant (1) comprises a plurality of hydraulic power packs (5a,5b,5c,5d) for actuating the presser unit (3), connected together in parallel, adapted to send a flow of pressurised oil to the hydraulic cylinder (4) that can be varied relative to the different operating needs of the press (2).
摘要:
A method of forming a ceramic product, the method comprising producing a ceramic foaming mixture in the form of a slurry, causing the slurry to foam, extruding the foamed slurry to produce a plurality of lengths of extruding material each with a diameter of less than 10mm, firing the extruded material so as to partially sinter the extruded material, forming the partially sintered extruded material into a required shape for a product, and subsequently firing the shaped partially sintered extruded material to form the ceramic product.
摘要:
The present invention provides a wear resistant composition for manufacturing wear resistant component used for making grinding roll or table liner for vertical roller mill and method to manufacture the same. The composition includes 50.0-70.0% by volume of Aluminum Oxide (Al2O3); 25.0-39.0% by volume of Zirconium Oxide (ZrO2); 0.10-0.9% by volume of Titanium Oxide (TiO2); 0.10-0.9% by volume of Silica (SiO2); 0.10-0.5% by volume of Iron Oxide (Fe2O3); 0.03-0.09% by volume of Sodium Oxide (Na2O); 0.05-0.09% by volume of Calcium Oxide (CaO); 5.0-8.0% by volume of Magnesium Oxide (MgO); and 0.5-2.0% by volume of Yttrium Oxide (Y2O3). The present invention also discloses a cake, being used for manufacturing wear resistant component of vertical roller mill, comprising 85-98% by volume of the composition as defined above and 2-15% by volume of binder. Also a method of manufacturing the cake is disclosed. Further a wear resistant component for vertical roller mill comprising 2-10% by volume of the cake as defined above and 90-98% by volume of metal is disclosed.
摘要翻译:本发明提供一种用于制造用于制造用于立式辊磨机的研磨辊或台衬的耐磨组件的耐磨组合物及其制造方法。 该组合物包含50.0-70.0体积%的氧化铝(Al 2 O 3); 25.0-39.0体积%的氧化锆(ZrO 2); 0.10-0.9体积%的氧化钛(TiO 2); 0.10〜0.9体积%的二氧化硅(SiO 2); 0.10〜0.5体积%的氧化铁(Fe 2 O 3); 0.03-0.09体积%的氧化钠(Na2O); 0.05〜0.09体积%的氧化钙(CaO); 5.0-8.0体积%的氧化镁(MgO); 和0.5-2.0体积%的氧化钇(Y 2 O 3)。 本发明还公开了一种用于制造立式辊磨机的耐磨部件的蛋糕,其包含85-98体积%的如上所定义的组合物和2-15体积%的粘合剂。 还公开了一种制造蛋糕的方法。 此外,还公开了一种用于立式辊磨机的耐磨部件,其包含2-10体积%的如上所述的饼和90-98体积%的金属。
摘要:
A radiating heating module for a tunnel kiln for continuous-cycle firing of ceramic products such as tiles, slabs, bricks, sanitary appliances and the like, which advance on a roller plane located internally of the tunnel, in which tunnel the heating means are of a radiating type, characterised in that it comprises a pair of parallel radiant tubes, each comprising at an end thereof a free flame burner, combustion gases of which flow along the tube, and at an opposite end thereof a heat exchanger crossed by the combustion gases, the two radiant tubes being reciprocally orientated in an opposite direction so that the end of the tube of each pair comprising the burner is adjacent to the end of the other tube of the same pair comprising the heat exchanger, the comburent air conduit of the burner of a tube comprising the adjacent heat exchanger located at the end of the other tube.
摘要:
Es wird ein Verfahren zur elektrischen Vortrocknung eines feuchten Rohlings aus einer keramischen Rohmasse angegeben, wobei der Rohling in einen Stromkreis geschaltet und ein Wechselstrom durch den Rohling geleitet wird. Dabei wird der Wechselstrom mit einer gegenüber der Netzfrequenz erhöhten Frequenz durch den Rohling geleitet. Zum Erreichen eines gleichen Trocknungsresultats wird deutlich weniger elektrische Energie benötigt.
摘要:
A waste heat recovery and utilization apparatus for a rapid cooling zone of a ceramic production line furnace comprises a heat exhaust duct (3) arranged on an upper portion of the furnace in the rapid cooling zone and communicated with the chamber of the furnace, and a cushion barrier zone (7, 8) arranged between the upper portion of the furnace and the communicated heat exhaust duct, and including an upper barrier (7) and a lower barrier (8), both with heat gas throughholes (9) thereon. A waste heat recovery and utilization method comprises: arranging a cushion barrier zone on the top portion of the furnace chamber in the rapid cooling zone, extracting and transporting the heat within the cushion zone to an interior chamber of a spray drying tower in the ceramic production line, so that no additional heat resource is necessary for the drying tower.
摘要:
La présente invention se rapporte à des billes de broyage en céramique frittée comportant les composés suivants (en % massique): 18 à 50% de mullite (3Al 2 O 3 .2SiO 2 ) ; 9 à 25% de zircone (ZrO 2 + HfO 2 ) stabilisée par 0,5 à 3% d'oxyde de terres rares ; 25 à 72% d'alumine (Al 2 O 3 ).
摘要翻译:本发明涉及包含以下化合物(重量%)的烧结陶瓷研磨球:18至50重量%的莫来石(3Al2O3.2SiO2); 由0.5〜3重量%的稀土氧化物稳定的9〜25重量%的锆(ZrO 2 + HfO 2) 和25至72重量%的氧化铝(Al 2 O 3)。
摘要:
Die Erfindung betrifft ein verfahren zum Trennen eines flachen Werkstückes aus Keramik durch Provokation eines Trennrisses in Folge von Wärmespannungen, die durch einen zeitlichen und örtlichen Wärmeeintrag mittels Laser entlang einer gewünschten Trennlinie und einem diesem nachlaufenden zeitlich und örtlichen Wärmeentzug mittels eines Kühlmittels entstehen, wobei die Strahlflecklänge aus folgender Formel berechnet wird: 1=8xdx24/WLF mit 1: Länge des Strahfleckes; WLF: Wärmeleichtfähigkeit der zu trennenden Keramik; d: Dicke der zu trenneden Keramik, so dass die Länge des von dem Laser auf dem Werkstück erzeugten Strahlflecks in Abhängigkeit von der Wärmeleitfähigkeit der Keramik und der Dicke des Werkstückes gewählt wird und insbesondere bei Werkstücken mit hoher Eigenspannung Verfahrensparameter, wie die Laserleistung oder die Vorschubgeschwindigkeit über den Prozessverlauf verändert werden, um die Höhe der induzierten Wärmespannungen zu beeinflussen.
摘要:
A kiln (1), particularly for ceramic products, comprising a chamber made of refractory material, which is mounted on a supporting structure (2) that forms at least one longitudinal compartment (4) for the transit of at least one plurality of aligned carriages (5), each carriage comprising a supporting frame that passes through at least one longitudinal slot formed in the bottom (7) of the chamber and comprises means for supporting, on at least three points, at least one framework (I) for supporting the products to be subjected to thermal treatment.
摘要:
A dry pulverized clay powder (1) is fed to a calciner (20) to be calcined therein. The clay powder feed (1) is passed through the calciner (20) in direct heat exchange contact with a hot gas (5) passing therethrough to heat the clay powder sufficiently to calcine substantially all the clay powder while passing through the calciner (20). The calcined clay product (3) is removed from the calciner (20) and preferably passed in heat exchange relationship with a cooling medium (71) whereby the calcined clay product (3) is cooled and the cooling medium is heated. The hot off-gas (7) discharged from the calciner (20) is passed through an electrostatic precipitator (30) to remove at least a substantial portion of calcined clay product dust (11) entrained in the exhaust gas from the calciner. The clean gas (13) leaving the electrostatic precipitator (30) is passed in heat exchange relationship with a cooling fluid (51) to further cool the gas, and preferably to evaporate at least a portion of the cooling portion to produce a heating vapor (53). The hot calcined clay dust (11) separated from the hot gas in the electrostatic precipitator (30) is recovered. Preferably, the recovered hot calcined clay dust (11) is mixed with the clay feed material (1) being supplied to the calciner (20) without substantially cooling the hot calcined clay powder collected in the electrostatic precipitator (30).