Apparatus for powder coating of particles

    公开(公告)号:US10588822B2

    公开(公告)日:2020-03-17

    申请号:US15722523

    申请日:2017-10-02

    摘要: An apparatus for coating pharmaceutical particles such as drug dosage forms or pellets is provided which includes a drum assembly mounted for rotation about a cylindrical axis of the drum and which includes an outer drum section and an inner perforated drum section mounted concentrically on an interior of the outer drum section such that an annular chamber is formed between the perforated inner drum section and the outer drum section. Two or more baffle plates are attached between an outer surface of the inner perforated drum and an inner surface of the outer drum which are configured to act as baffles to restrain or regulate the flow of air which define two or more compartments depending on the number of baffle plates. One end of the drum assembly includes an end plate with a central aperture for use in loading pellets into the drum and provide access to coating constituents that are pumped into the drum interior during the coating process. An air distribution plate is attached at the other end of the drum and has air flow passageways and is interfaced with an air introduction plate having air inlet and outlet passageways. As the drum rotates the air flow passageways in the distribution plate alternately come into flow communication with the air inlet and outlet passageways in the air introduction plate thereby providing a flow path of air into the perforate inner drum and out of the drum assembly.

    DEVICE FOR PRODUCING A GRANULATE
    5.
    发明申请

    公开(公告)号:US20180243748A1

    公开(公告)日:2018-08-30

    申请号:US15556923

    申请日:2016-03-03

    发明人: Alexander SCHMIDT

    摘要: The present disclosure concerns a device for granulating coarse material. Examples of course material include pulverulent solids such as powder, grain, or mixtures thereof. The device disclosed includes a rotor, a screen, and an automatic distance adjusting unit. The rotor is configured to rotate/oscillate and press the coarse material through the screen in order to produce a granulate with a smaller granulate unit size compared to the coarse material. The automatic distance adjusting unit is configured to adjust a distance between the rotor and the screen.

    Method and a system for producing a lightweight ceramic aggregate, particularly from coal ash

    公开(公告)号:US09938196B2

    公开(公告)日:2018-04-10

    申请号:US15031634

    申请日:2014-10-23

    申请人: LSA SP. Z O.O.

    摘要: A method for producing a lightweight ceramic aggregate, particularly from coal ash, according to the invention is characterized in that the raw material mixture of the total moisture content preferably below 20% by weight consisting of power station ashes originating from combusting coal, or ashes from combusting coal in a mixture with biomass ash, or ashes from co-combusting biomass with coal and phosphogypsum in an amount of up to 50% by weight, taken from dumps and/or from direct dump from a power station or a heat and power station, the raw materials from the dumps preferably being heated up in winter by a mixture of atmospheric air and exhaust gases from the step of burning and sintering, with a content of non-burnt coal above 6% by weight, agglomeration promoting agents like silty non-organic materials, preferably bentonite, preferably in an amount of up to 4% by weight, clay preferably up to 6% by weight, organic waste materials like used paints and lacquers, after-fermentation sludge in an amount preferably of up to 10% by weight, and after-coal mining waste materials in an amount preferably of up to 50% by weight, the mixture being completed with dust separated from exhaust gases produced during the step of burning and sintering, is fed to preferably at least one of two or more granulating disks, or in a cascade-type manner to at least two granulating disks, where it is sprayed with water, preferably in a form of a mist, to the total moisture content preferably below 30% by weight. Next, the screened fraction of grains of the granularity of preferably 6-30 mm, is subjected to counterflow drying in the heat of a mixture of the atmospheric air and cooled exhaust gases from the step of burning and sintering, the cooled exhaust gases having the temperature below the ignition temperature of the granulated material. The dried granulated material is subjected to burning and sintering in a co-flow rotary oven with radial air supply, with filling the oven with the granulated material preferably above 50% of its volume without adding any external fuel. Next, the burnt granulated material is subjected to a non-membrane atmospheric air cooling process in a crossed arrangement in a cooling bed, preferably of a transporter or grate type, the cold air being fed to the cooling bed into its specific cooling zone in such an amount that its mixture with the exhaust gases led out from the oven is suitable for drying the granulated material in the drier, for heating up, particularly in the winter, the raw materials taken from the dumps, and for feeding the nozzles radially delivering hot gases into the rotary oven. Finally, the granulated material cooled down preferably to a temperature below 100° C. is transported to the storage yard for the final product, where the aggregate is sorted into trade fractions, round aggregate, and the overgrains, which, after crushing and re-sorting is a crushed aggregate.A system for producing a lightweight ceramic aggregate, particularly from coal ash according to the invention is characterized in that it is composed of a transporting-sorting device (1) acquiring coal ashes or ashes from combusting coal mixed with biomass ashes, or ashes from co-combusting biomass, coal and phosphogypsum preferably in an amount of up to 50% by weight, from dumps, the device (1) cooperating with an excavator (2), preferably a multibucket excavator, which, by means of a weighting conveyor (3), transfers the batch material to a transporting device, preferably a paddle-type device with a heating functionality, also playing a role of a stirrer and an initial shredder (4), from where the mixture is transported to an intermediate container (5) with a weighting functionality by means of a vertical conveyor, preferably a screw conveyor with a transporting belt without the central shaft, where also the stream of the separated granulated material is directed from granulators (6) as well as the dusts from the dust collector (7), preferably a cyclone, removed from the stream of the gases heating up the batch in the transporting conveyor (4), preferably a paddle conveyor. Further, the mixture of the raw materials is fed, through a magnetic separator (8) of metallic contaminants, two-stage crushing assembly (9), preferably composed of two drum crushers, correspondingly (9.1) and (9.2), and an inter-operation one board relieving screen (9.3), to a stirrer (10), preferably a screw stirrer, preferably a two shaft stirrer, and completed with agglomeration promoting agents taken from storage silos (11) and weighted in the weighting conveyor (12) and then moistened by water supply (13). Further, through a moisture content meter (14), by means of a dosing conveyor (15), preferably a screw conveyor, the mixture enters a system of granulators (6), preferably disk granulators, on the surface of which it is moistened by mist from water nozzles (16), and then, after overflowing over the side walls of the disks of the granulators (6), it is directed to a screen (17), from which overgrains and undergrains are returned to the intermediate container (5), whereas the grains of appropriate size are transported by a distributing conveyor (18) to the highest shelf of the drier (19), preferably a known counterflow drier with movable shelves according to P393175, wherein the drying agent are exhaust gases from the burning and sintering process in the sintering device (21), cooled down by atmospheric air in the cooling bed (20). Further from the drier (19) the grains are led to the chute of the sintering device (21), preferably a known rotary oven according to patent 196842, from where they pour over a pile-up baffle (21A) of the sintering device (21) to the cooling bed (20) and further through the final conveyor (25) to the storage yard (26).

    Method of agglomerating silicon/silicon carbide from wiresawing waste
    7.
    发明授权
    Method of agglomerating silicon/silicon carbide from wiresawing waste 有权
    将硅/碳化硅从线锯废料中聚集的方法

    公开(公告)号:US09228246B2

    公开(公告)日:2016-01-05

    申请号:US14347963

    申请日:2014-01-10

    摘要: The process of the present invention begins with a source of silicon and silicon carbide from wafer production. The silicon/silicon carbide waste material is dewatered as need be and passed to a mixer where the waste material is agglomerated. A binder is applied to the waste material either during agglomeration or during pelletizing. A variety of organic binders may be used such as polyvinyl alcohol, molasses, sodium silicate and polyethylene glycol; however, the preferred binder is a lignosulsulfonate. The amount of binder used will depend upon the particular binder and the feed material used. The silicon/silicon carbide-containing waste material is pelletized. The invention also provided silicon/silicon carbide-containing pellets that may be used as reduction material in smelting furnaces for the production of metals and alloys.

    摘要翻译: 本发明的方法从晶片生产的硅和碳化硅源开始。 硅/碳化硅废料根据需要脱水并通过混合器,其中废料被聚集。 在结块或造粒期间,将粘合剂施加到废料上。 可以使用各种有机粘合剂,例如聚乙烯醇,糖蜜,硅酸钠和聚乙二醇; 然而,优选的粘合剂是木质素磺酸盐。 使用的粘合剂的量将取决于特定的粘合剂和所用的进料。 将含硅/碳化硅的废料造粒。 本发明还提供了可用作熔炼炉中的还原材料用于生产金属和合金的含硅/碳化硅的颗粒。

    Rotor processor for dry powders
    8.
    发明授权
    Rotor processor for dry powders 有权
    用于干粉的转子处理器

    公开(公告)号:US08807070B2

    公开(公告)日:2014-08-19

    申请号:US12509513

    申请日:2009-07-27

    申请人: Brian K. Jensen

    发明人: Brian K. Jensen

    摘要: The improved rotor processor of the present invention includes a stator with a rotatable rotor defining a rotor chamber in which particles are circulated for coating or layering. A spray gun mounted to the stator adjacent the rotor directs liquid into the rotor chamber, while a powder feed system mounted in the stator adjacent the rotor directs dry powder into the rotor chamber. The spray gun and powder feed system are spaced apart circumferentially so as to define a spray zone and a separate powder zone through which the circulating particles repeatedly and sequentially pass. The powder feed system includes a feed screw conveyor, an eductor, and a flexible conduit for delivering micronized powders, such as polymers or glidants, to the rotor chamber.

    摘要翻译: 本发明的改进的转子处理器包括具有可旋转转子的定子,该转子限定了转子室,其中颗粒循环用于涂覆或分层。 安装在靠近转子的定子上的喷枪将液体引导到转子室中,而安装在定子中的与转子相邻的粉末供给系统将干粉引导到转子室中。 喷枪和粉末进料系统周向间隔开,以便限定喷射区和分开的粉末区域,循环颗粒通过该区域重复并依次通过。 粉末进料系统包括进料螺旋输送机,喷射器和用于将诸如聚合物或助流剂的微粉化粉末输送到转子室的柔性导管。

    Disc coater
    9.
    发明申请
    Disc coater 有权
    圆盘涂布机

    公开(公告)号:US20050155547A1

    公开(公告)日:2005-07-21

    申请号:US10762032

    申请日:2004-01-21

    申请人: Steven Lenius

    发明人: Steven Lenius

    CPC分类号: B01J2/14 B01J2/006 Y10S118/02

    摘要: A coater for separating primary particles that are coated with a sticky or tacky resin, and covering the surface of the primary particles with a secondary particle of smaller size is disclosed. The coater includes a disc having a periphery, a motor engaging the disc so as to be able to spin the disc, and a restrictor mounted adjacent to the disc so as to provide a gap for the egress of coated particles near the periphery of the disc. Other embodiments of the invention will also have a first dispenser for particles disposed above the disc. Also conveniently, the coater will also have a second dispenser for particles disposed above the disc. In one application for which the coater can be employed, the first dispenser will be adapted to dispense a mixture of sand particles and polymeric resin, and the second dispenser will be adapted to dispense retroreflective glass beads.

    摘要翻译: 公开了一种涂布机,用于分离涂有粘性或粘性树脂的一次颗粒,并用较小尺寸的二次颗粒覆盖一次颗粒的表面。 涂布机包括具有周边的圆盘,与圆盘接合以便能够旋转圆盘的马达以及邻近圆盘安装的限流器,从而为在圆盘周边附近的涂覆颗粒的出口提供间隙 。 本发明的其它实施例还将具有设置在盘上方的颗粒的第一分配器。 也方便地,涂布机还将具有用于设置在盘上方的颗粒的第二分配器。 在可以使用涂布机的一个应用中,第一分配器将适于分配砂粒和聚合树脂的混合物,并且第二分配器将适于分配回射玻璃珠。

    Bead for removing dissolved metal contaminants
    10.
    发明授权
    Bead for removing dissolved metal contaminants 失效
    珠去除溶解的金属污染物

    公开(公告)号:US5578547A

    公开(公告)日:1996-11-26

    申请号:US249733

    申请日:1994-05-26

    摘要: A bead is provided which consists essentially of peat moss or other nonliving biomass immobilized by sodium silicate or polysulfone binder. The bead is effective to remove metal contaminants from dilute aqueous solutions. A method of making metal-ion-sorbing beads is provided, comprising combining peat moss or other nonliving biomass and liquid binder (preferably in a pin mixer where it is whipped), forming wet beads, and drying the beads. The liquid binder is preferably sodium silicate dissolved in water or polysulfone dissolved in methylene chloride.

    摘要翻译: 提供了一种珠粒,其主要由泥炭苔或其它由硅酸钠或聚砜粘合剂固定的非生物生物质组成。 珠子有效地从稀释的​​水溶液中除去金属污染物。 提供了一种制备金属离子吸附珠粒的方法,其包括将泥炭苔或其它非生物生物质和液体粘合剂(优选在其中被搅打的针式混合器中)组合,形成湿珠粒并干燥珠粒。 液体粘合剂优选溶解在溶解在二氯甲烷中的水或聚砜中的硅酸钠。