Discharge pressure actuated pump
    151.
    发明授权
    Discharge pressure actuated pump 有权
    排气压力驱动泵

    公开(公告)号:US08011901B2

    公开(公告)日:2011-09-06

    申请号:US11530848

    申请日:2006-09-11

    Applicant: Grant Duncan

    Inventor: Grant Duncan

    CPC classification number: F04B5/00 F04B9/10

    Abstract: A pump has a pump barrel formed from a larger diameter section and a smaller diameter section. Each section has a biased piston moveable within the section and the pistons are connected together to form a variable volume chamber between the pistons. As the connected pistons move toward the larger diameter section, a volume of fluid is moved through an inlet valve into the variable volume chamber of increasing volume. When the pistons are moved toward the smaller diameter section, a differential volume of fluid is discharged from the variable volume chamber of decreasing volume through a discharge valve into a discharge conduit. The pistons are actuated to move within the pump barrel by application and release of pressure at a remote end of the discharge conduit.

    Abstract translation: 泵具有由较大直径部分和较小直径部分形成的泵筒。 每个部分具有在该部分内可移动的偏置活塞,并且活塞连接在一起以在活塞之间形成可变容积室。 随着连接的活塞朝向较大直径部分移动,一定体积的流体通过入口阀移动到增加体积的可变容积室中。 当活塞向较小直径部分移动时,不同体积的流体通过排放阀从减小体积的可变容积室排出到排放管道中。 通过在排出管道的远端施加和释放压力来致动活塞以在泵筒内移动。

    SCREENING DISK, ROLLER, AND ROLLER SCREEN FOR SCREENING AN ORE FEED
    152.
    发明申请
    SCREENING DISK, ROLLER, AND ROLLER SCREEN FOR SCREENING AN ORE FEED 有权
    筛选盘,滚筒和滚轮筛网

    公开(公告)号:US20110094944A1

    公开(公告)日:2011-04-28

    申请号:US12842973

    申请日:2010-07-23

    CPC classification number: B07B1/15 B07B1/4618 B07B1/4627

    Abstract: A screening disk for use on a roller of a roller screen for screening an ore feed is disclosed, which includes first and second opposing side working surfaces, and provisions for mounting the screening disk on a shaft of the roller. At least one of the first and second side working surfaces has a plurality of protrusions operable to extend outwardly into an interstice between the applicable side working surface and a side working surface of an adjacent mounted screening disk. A spacer may be disposed in the one interstice for confining an extent of the one interstice to a region disposed generally between the third working surface and the shaft. A screening disk may have a keyway configured to receive a key for coupling the body of the screening disk to the shaft for rotation therewith.

    Abstract translation: 公开了一种用于筛网矿石进料的辊筛辊的筛盘,其包括第一和第二相对的侧面工作表面,以及用于将筛盘安装在辊的轴上的装置。 第一和第二侧面工作表面中的至少一个具有多个突起,其可操作以向外延伸到可应用的侧面工作表面和相邻安装的掩模盘的侧面工作表面之间的空隙中。 间隔件可以设置在一个空隙中,用于将一个空隙的范围限制在通常设置在第三工作表面和轴之间的区域。 筛盘可以具有键槽,其被配置为接收用于将筛盘的主体联接到轴上以与其一起旋转的钥匙。

    NON-AQUEOUS EXTRACTION OF BITUMEN FROM OIL SANDS

    公开(公告)号:US20230159833A1

    公开(公告)日:2023-05-25

    申请号:US17991813

    申请日:2022-11-21

    CPC classification number: C10G1/045 C10G2300/44

    Abstract: A non-aqueous process for producing bitumen from oil sands is provided, and includes contacting oil sands and solvent to produce solvent diluted bitumen and solvent diluted tailings. The solvent diluted bitumen is subjected to a first fines separation stage that produces an overflow solvent diluted bitumen stream with residual fines that is subjected to a second fines separation stage to remove residual fines and produce a solvent diluted bitumen stream, which is subjected to solvent recovery. The fines streams are subjected to washing to produce washed tailings and solvent wash liquor comprising solvent and bitumen. Another non-aqueous process for producing bitumen from oil sands is provided, and includes subjecting oil sands to solvent extraction, including displacing the oil sands material and a solbit counter-currently and horizontally, and recovering a bitumen enriched solbit stream which is subjected to fines separation and subjecting the solvent diluted bitumen stream to solvent recovery.

    Ablation process for oil sands subjected to non-aqueous extraction

    公开(公告)号:US11649404B2

    公开(公告)日:2023-05-16

    申请号:US17683715

    申请日:2022-03-01

    CPC classification number: C10G1/045 C10G2300/44

    Abstract: A non-aqueous extraction process for producing a bitumen product from an oil sands material that includes an ablation stage is provided. The ablation stage can include adding an ablation solvent to an oil sands material to achieve a solvent-to-ore ratio of less than about 10, mixing the ablation solvent and the oil sands material to reduce the size of the oil sands material and produce ablated ore that includes ablated ore fragments having a diameter of less than about 2 inches, and retrieving the ablated ore as a single stream. The ablated ore can be subjected to a reject separation stage to separate reject material therefrom. The reject material can also be subjected to a wash reject stage. The ablated ore can then be subjected to an extraction stage. Examples of ablators are also described, which can include for instance a conveyor, or can be a rotary screen ablator.

    Non-aqueous extraction and separation of bitumen from oil sands ore using paraffinic solvent and deasphalted bitumen

    公开(公告)号:US11643603B2

    公开(公告)日:2023-05-09

    申请号:US16994211

    申请日:2020-08-14

    CPC classification number: C10G1/045 C10G2300/206 C10G2300/4081 C10G2300/44

    Abstract: A non-aqueous extraction (NAE) process for producing bitumen from oil sands ore can include a multistage bitumen extraction step where paraffinic solvent and deasphalted oil are added at a downstream stage of extraction at solvent-to-bitumen ratios below asphaltene precipitation onset threshold to remove bitumen from the solid mineral material, while the ore is added to a first stage to mix with the solvent-bitumen mixture and produce solvent diluted bitumen. The process includes recovering the solvent diluted bitumen and the solvent diluted tailings from the extraction step. The solvent diluted bitumen is subjected to deasphalting to produce solvent diluted deasphalted bitumen that is used as a source of the paraffinic solvent and deasphalted oil supplied to extraction. The tailings and asphaltene fraction from deasphalting can be subjected to washing and the washed material can then be subjected to sand solvent recovery. The NAE process can be operated within an operating envelop for effective and efficient performance.

    PRODUCTION OF CARBON FIBER FROM ASPHALTENES

    公开(公告)号:US20230020290A1

    公开(公告)日:2023-01-19

    申请号:US17375873

    申请日:2021-07-14

    Inventor: Darius REMESAT

    Abstract: There is provided a process and system for producing carbon fiber products. The process can involve deasphalting a heavy hydrocarbon feedstock, which can contain native asphaltenes, to produce a solid asphaltene particulate material, which can be further treated to produce the carbon fiber products. In some implementations, the solid asphaltene particulate material can be extruded in the presence of a polymer. In some implementations, the solid asphaltene particulate material can be chemically treated with a chemical agent including a Lewis acid, an oxidizing agent and/or a reducing agent before extrusion. In some implementations, the process can further produce activated carbon fibers.

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