摘要:
A vertical roller mill has grinding rollers which roll over a grinding path of a rotatable grinding table, and a surrounding nozzle ring separation area for conveying and separating gas. A coarse fraction of ground material is entrained in gas upwards in ducts from a location that is below, at, or above the nozzle ring separation area and is transported into an entry to a material separator located above the grinding table.
摘要:
Vertical separator mill for triturating with fine particle separation, which allows fine particles to be removed from the milling chamber (1) and also to carry out the drying of the material in the drier mill unit, having a rotor (5) with a vertical axis and a rigid wall (6) surrounding said rotor, a static or dynamic separator (2), and after said separator, a cyclone (3) and a sleeve filter (4). An ascending air current is made to pass through the milling chamber (1) which is then directed through the static separator (2). For the recovery, a cyclone (3) and sleeve filter (4) are provided wherein the fine particles dragged by the air current are deposited.
摘要:
The present invention relates to apparatus for simultaneous grinding and froth flotation of at least one crude mineral and/or pigment, a process carried out in the apparatus for manufacturing at least one ground mineral and/or pigment, use of the ground mineral and/or pigment bearing phase obtainable by the process in paper applications as well as in paper, plastics, paints, coatings, adhesives, sealants, food, feed, pharma, concrete, cement, cosmetic, water treatment and/or agriculture applications, preferably in a wet end process of paper machine, in cigarette paper, board, and/or coating applications, or as support for rotogravure and/or offset and/or inkjet printing and/or continuous ink jet printing and/or flexography and/or electrophotography and/or decoration surfaces and the ground mineral and/or pigment bearing phase or ground mineral and/or pigment obtainable by the process.
摘要:
The invention relates to a novel device (10) for separating composite materials, comprising a cylindrical rotor (17), which has a shaft driven by a motor and strip-shaped first impacting tools (30), which are evenly distributed over the circumference and which protrude from the rotor parallel to the shaft, and comprising a cylindrical stator (12) that surrounds the rotor, wherein an annular space (32) is formed between the rotor and the stator. An air supply channel (15) opens into the upper region of the annular space (32) and an air removal channel (38) leads away from the lower region of the annular space. Furthermore, the cylindrical wall of the stator (12) has strip-shaped second impacting tools (31), which are evenly distributed over the circumference and which protrude radially inward.
摘要:
The invention relates to a roller mill, in particular a coal mill, with a feed system, which comprises an integrated screw feeder. The screw feeder is arranged virtually horizontally in the region of a grit cone and comprises a screw shaft guided through the roller mill and the longitudinal axis thereof, which screw shaft is arranged on both sides respectively outside of the roller mill and at one end with a drive means and at the other end in a bearing outside of the roller mill. The feed material is fed with the screw conveyer outside of the roller mill and forcibly conveyed therein to a tray side rejection opening above a cone opening of the grit cone and drops together with the coarse grain rejected in the classifier centrally onto the grinding pan. An even distribution of the feed material and improved smooth running of the roller mill and energy saving are achieved and also soiling of the screw shaft is avoided.
摘要:
Um eine Kreislaufmahleinrichtung mit Walzenmühle bzw. Walzenpresse zur Gutbettzerkleinerung körnigen Gutmateriales und mit wenigstens einem integrierten Sichter, wobei Mühle und Sichter innerhalb zweier feststehender Seitenwände (12, 13) und einem dazwischen liegenden drehbar gelagerten in Drehung versetzbaren Materialförderring (18) für einen internen Gutmaterialkreislauf angeordnet sind, so weiter zu entwickeln, dass der drehbar gelagerte im Durchmesser sehr große und im Betrieb rotierende Materialförderring (18) möglichst leichtgewichtig und der Drehantrieb möglichst einfach gebaut sein können, wird erfindungsgemäß vorgeschlagen, um den unteren Umfangsbereich des Materialförderringes (18) mehr als zwei, z. B. vier den Ring (18) von unten abstützende Rollen (14 bis 17) anzuordnen, wobei zwei in Ring-Umfangsrichtung benachbarte Lagerrollen (14/15) bzw. (16/17) an den Enden wenigstens eines gemeinsamen Wippenhebels (33, 34) gelagert sind, der seinerseits über ein Kippgelenk (35, 36) am Maschinenrahmen abgestützt ist.
摘要:
Die Erfindung betrifft ein Verfahren zum Aufbereiten von Mehrphasen-Mineral-Rohstoff für die Verwendung als Bindemittel oder Bindemittelhalbprodukt, welches zumindest zwei unterschiedliche Phasen mit jeweils zueinander unterschiedlichen Mahlbarkeiten aufweist. Hierbei wird der Rohstoff mittels Mahlwalzen (17) in einer Mühle-Sichter-Kombination (10) zerkleinert, wobei mindestens einmal zerkleinerter Rohstoff einem Sichter (12) zugeführt und dort in Grob- und Feingut unterschieden wird. Erfindungsgemäß ist vorgesehen, dass ein mindestens 10 M.-%iger Anteil des Grobgutes aus dem Sicherkreislauf abgezogen wird und das Feingut einer Verwendung als hydraulisches Bindemittel oder Zusatzstoff für die Zementindustrie zugeführt wird.