Class / Patent application number | Description | Number of patent applications / Date published |
209240000 | Feeding and discharging | 18 |
20090236267 | SCREEN AND METHOD FOR SCREENING PULP - A screen and a method for screening pulp. The screen comprises a body, a screen cylinder arranged inside the body for screening the pulp, and an accept chamber and an accept aggregate connected with it for removing the accepted pulp fraction from the screen. The accept chamber is arranged between the screening surface of the screen cylinder and the screen body and it is arranged to expand in the radial direction of the screen cylinder outwards from the screen cylinder continuously in the longitudinal direction of the screen cylinder towards the line which is parallel to the radius of the screen cylinder and corresponds to the cross-section of the body and on which the accept aggregate is arranged. | 09-24-2009 |
20100012556 | ROTATING SCREEN MATERIAL SEPARATION SYSTEM AND METHOD - A material separation system for separating material into different sizes of material. The material separation system includes a support structure, a rotating screen, and a feed plate, to feed the material to the exterior of the rotating screen. The system can be used to separate a desired material from an aggregate material which includes the desired material. | 01-21-2010 |
20100108574 | SIEVE DEVICE FOR CONTROLLED SIEVING - A screening device is disclosed for a pulverulent or granular material, such as a control screen for milled products including, but not limited to, flour, middlings or semolina. The device has an inlet for material to be screened, an outlet for rejections and an outlet for undersize Furthermore, the screening device can include a screen frame with a screen fastened thereto and a base framework. The screen frame can be mounted such that it can move relative to the base framework of the screening device and be coupled to a vibrating source by which the screen frame can be made to move with vibrating movements relative to the base framework of the screening device. During operation, the screen frame can be made to move with vibrating movements whose frequency is in the range from, for example, 15 Hz to 100 Hz and whose amplitude is in the range from, for example, 0.1 mm to 6 mm. | 05-06-2010 |
20100282648 | VIBRATORY SCREENING APPARATUS - The present invention relates to a vibratory screening apparatus which comprises a vibratable screen element ( | 11-11-2010 |
20100288681 | TWO STAGE PULP SCREENING DEVICE WITH TWO STATIONARY CYLINDRICAL SCREENS - A device including a hollow cylindrical body, first and second stationary coaxial annular screening screens disposed within the body, and a rotor within the body and positioned between the screens to conduct the slurry through the first screen and then through the second screen, the rotor being driven in rotation. The pulp slurry passes through a central entry pipe, radially outward and then upward along the inside of the rotor, further inward through a coarse screen cylinder, and then around the end of the rotor to pass between the outer surface of the rotor and the inner surface of a fine screen cylinder. The pulp slurry then finally passes outward through the fine screen cylinder. Coarse rejects, such as knots or other coarse material, are collected at the end of the coarse screening chamber and led away for further processing. Fine rejects are similarly collected at the end of the fine screening chamber, also to be led away separately for further processing. | 11-18-2010 |
20100326892 | DYNAMICALLY ADAPTIVE TROMMEL SCREEN SYSTEM - A dynamically real-time adaptive trommel screen system is revealed. The dynamically adaptive trommel screen system includes a fixture, a trommel screen disposed on the fixture for screening a mixture into regenerated filter granules and screened residues, a structured duct for transporting the regenerated filter granules and an enclosure for collecting the screened residues, a tilt control member arranged on the fixture for adjusting the tilt angle of the trommel screen, and a feedback controller that controls the tilt control member according to the mass flow rate of the screened residues when the trommel screen operates so as to adjust the tilt angle of the trommel screen instantly and dynamically. By the feedback controller and the tilt control member, the tilt angle of the trommel screen is adjusted in a real-time and dynamic way so as to increase the screening efficiency. Moreover, the state of fractured filter granules is acquired from the feedback controller so that a certain amount of fresh filter granules can be refilled into the filter system for improving the filtration efficiency. | 12-30-2010 |
20110005980 | SIFTER - A sifter comprising: a receiver having a supply chamber; a sieve assembly having a sieving chamber coupled to the supply chamber; a rotor having a rotating shaft laterally arranged to pass through the supply chamber and the sieving chamber; a drum having a circular cross-section and having a larger diameter than the diameter of the rotating shaft, the drum being extended in at least space of the sieving chamber and arranged coaxially with the sieve; a cylindrical sieve located inside the sieving chamber and arranged coaxially with the rotating shaft; a stirring rotor located in an inner area of the sieving chamber inside the sieve comprising a rotating blade attached to the rotating shaft; an extraction member; and an outlet for discharging powder passing through the sieve from the inner area to the outer area. | 01-13-2011 |
20110174698 | FRACTIONATING ARRANGEMENT - The invention relates to an arrangement for fractionating a suspension of fibrous material suitable for creating a web of paper, board, tissue or some other fibrous material into a short fiber fraction with a high proportion of short and/or stiff fibers and/or vessel cells and a long fiber fraction with a high proportion of long and/or flexible fibers, comprising a screen element with screen openings which is taken past at least one nozzle which directs a jet of the fibrous material suspension onto the screen element, wherein the long fiber fraction is collected on the side of the screen element that is facing the nozzle and the short fiber fraction is collected on the opposite side of the screen element. In this case it is intended to make the fractionating easier and/or more efficient by the screen element being cylindrically formed and mounted rotatably about the cylinder axis and/or by most of the screen openings, preferably all the screen openings, being formed as elongated slits which extend, at least over part of their length, in an inclined manner in relation to the direction of movement of the screen element, or by the screen element having a honeycomb structure. | 07-21-2011 |
20130062261 | SCREENING METHOD AND APPARATUS - An apparatus ( | 03-14-2013 |
20130105369 | APPARATUS AND METHOD FOR REMOVING SOLID DEBRIS FROM SLURRY PROCESSING SYSTEM | 05-02-2013 |
20130306527 | Material separator - A material Separator with a hopper, a rigid helically shaped tubular pipe structure, an inlet port, a large particle outlet port and a small particle outlet port. The helically shaped tubular pipe structure connected to the underside of the hopper. The helical pipe structure has an internal false bottom. The false bottom is perforated so that particles that are larger than the perforations flow down the upper portion of the helical tubular pipe structure and material particles that are smaller than the perforations drop through the perforations and flow down the lower portion of the helical tubular pipe structure. The larger material particles exit the large particle outlet and the smaller material particles exit the small particle outlet. A preferred embodiment includes the helical tubular pipe structure is constructed of a plurality of curved pipe members, each having flanges at each end so that one the flanged curved pipe member can be bolted to the adjoining flanged curved pipe member. | 11-21-2013 |
20130334108 | CENTRIFUGAL SIFTING APPARATUS - A stationary screen ( | 12-19-2013 |
20140262975 | BACKING SCREEN PANELS FOR VIBRATING SCREEN SEPARATOR - A vibrating screen separator machine including a frame bounding a first screening assembly, the first screening assembly forming a first sifting plane. The first screening assembly comprises a mesh screen and a planar backing panel proximate the mesh screen, the backing panel having a plurality of perforations. The screen separator also includes a material input slot on the frame and an un-sifted material output slot and a sifted material output slot on the frame where material travels from the material input slot into the screening assembly and where un-sifted material exits the frame through the un-sifted material output slot and sifted material exits the frame through the first sifted material output slot. The screen separator also includes a vibration mechanism supported by the frame and connected to the screening assembly, the vibration mechanism imparting vibrational energy to the screening assembly to sift material passing through the screening assembly. | 09-18-2014 |
20140299519 | Method and Device for Fractionating Bulk Material - The method for fractionating bulk material comprises the step of feeding the bulk material to at least one screen in a device ( | 10-09-2014 |
20160158804 | PRESSURE SCREEN - A pressure screen for cleaning a fibrous stock including a screen element which has a rotationally symmetrical configuration about a screen axis. The screen element divides the pressure screen into an inlet chamber and an accepted stock chamber. The inlet chamber is connected at a first axial end with a suspension inlet and at a second axial end with a reject outlet. The accepted stock chamber is connected with an accepted stock outlet. The pressure screen also includes a rotor situated in the inlet chamber and including a plurality of rotor blades. The rotor rotates about the rotational axis relative to the screen element. The plurality of rotor blades is arranged on a plurality of circumferential planes of the rotor. The width of an annular gap between the rotor and the screen element decreases from the suspension inlet to the reject outlet. | 06-09-2016 |
209241000 | Conveyors | 3 |
20080314803 | Asphalt recycling plant - An asphalt recycling plant is described that is oriented vertically with an elevator to convey ground-up road material to a top of the plant. The material moves does the plant by force of gravity through a sifter, sorter, crusher and return facility such that the dust and debris of the recycling process is substantially contained within the facility. | 12-25-2008 |
20100018908 | SCREENING APPARATUS - A screening apparatus for processing excavated material from a ditch into fines and roughs is disclosed. The screening apparatus includes an inclined lift conveyor for moving the excavated material upward and depositing the excavated material onto a convex vibrating screen surface. A transfer conveyor having an arcuate belt path as disposed below the separator for introducing the fines to the excavation. The separator includes a reversible motor for providing a first vibration and a second vibration to the separator. | 01-28-2010 |
20120168355 | Apparatus for the transport and sorting of loose materials - A rake conveyor comprises a horizontal movable part and a rotating-swinging part and/or an inclined part. A screen is located above part of the rake conveyor. The rotating-swinging part and/or the inclined part of the rake conveyor is followed by a first bucket conveyor or the a part of the dual bucket conveyor, which lifts the used loose material into equipment for sorting of loose material. At least one of the outputs of equipment for sorting of loose materials is followed by a second bucket conveyor or by a second part of the dual bucket conveyor. The outlet of the second bucket conveyor or the second outlet of the dual bucket conveyor leads to a silo, which is additionally equipped with an outlet mouth, leading into a container. Once used abrasive material has accumulated, the excess abrasive material is taken out of the container above the rack conveyor. | 07-05-2012 |