121 |
Vessel for stripping oil from fluidized ash and char particles |
US719274 |
1976-08-31 |
US4116823A |
1978-09-26 |
Charles K. Choi |
A vessel is provided for stripping oil from char particles of different density recovered from a pyrolysis of organic solid waste. The lower end of the vessel is of reduced diameter with a plurality of gas jets which direct gas inwardly and upwardly to direct stripping gas through the particles. A standpipe extends upwardly from the bottom of the vessel and terminates above the gas inlet jets. A gas outlet is provided at the top of the vessel. The particles are introduced at an intermediate level in the vessel. The top of the standpipe is covered with a screen mesh for limiting the size of particles which can enter the standpipe. The gas fluidizes the particles of different density which tend to concentrate at different levels in the fluidized bed because of their density differences. The standpipe terminates at a selected level within the fluidized particle bed which results in a desired mixture of the particles of different density being withdrawn from the fluidized bed through the standpipe. |
122 |
Air classifier |
US621926 |
1975-10-14 |
US4089422A |
1978-05-16 |
Charles Raymond Harmke; Daniel Edward O'Neill |
An air classifier for separating a heterogeneous mixture of particles into heavier and lighter fractions includes an air passageway through which a horizontal primary air stream is flowing, a pair of air deck sections extending along the bottom of the passageway through which deck air is flowing upwardly within and downstream of the passageway, air nozzles located between the air deck sections through which a primary vertical air stream is flowing, the latter also preferably flowing with a horizontal component moving downstream of the passageway, a heavy particle deflector and remover downstream of the second air deck section, and a light particle trapping and removal arrangement downstream of the heavy particle deflector. The particle mixture is introduced into the passageway over the first air deck section just upstream of the primary vertical air nozzle, whereupon the particles are immediately stratified in horizontal layers of heavy and light fractions by the upward air currents and transported to the end of the passageway by the horizontal air currents, where the fractions are separated from the air flows and removed from the passageway. |
123 |
Fluidized bed processing of carbon black |
US25921272 |
1972-06-02 |
US3831747A |
1974-08-27 |
SCOTT O; SETLIFF B |
An improved manufacturing technique for simultaneously cooling and separating ''''fines'''' and/or contaminants from granular materials or powders such as carbon black is disclosed. The process includes the use of a fluidized bed to effect the removal of fines and foreign matter, the quenching of exothermic reactions and extinguishing of fires as they may exist and the continuous cooling of hot granular materials such as pelletized carbon black. Due to the high rate of heat transfer in the fluidized bed, very rapid cooling of the material is accomplished and in a manner such that, for example, cooled carbon black shows no tendency to spontaneously generate heat or to burn or begin or continue rapid oxidation while in bulk storage and/or transporting facilities. Through proper instrumentation of the fluidized bed, the presence of exothermic reactions, such as fires in the dryer as well as the presence of indothermic reactions, such as the presence of ''''wet'''' black can be simply and easily detected.
|
124 |
Apparatus for separating dry granular material |
US3777887D |
1971-05-27 |
US3777887A |
1973-12-11 |
JOHNSTON N; LATKER M |
Separator apparatus embodying an inclined porous deck having parallel transverse upper grooves at right angles to its direction of inclination. Granular material deposited onto the upper end of the inclined deck is assisted by low pressure air forced upwardly through the deck in moving toward the lower end of the deck, the air effecting separation between granules or particles of greater specific gravity and granules or particles of lighter specific gravity, the former dropping to the bottom of the grooves while the latter float upwardly and flow progressively from groove to groove toward the lower end of the porous deck. The downstream sides of the grooves make an acute angle with the upper face of the inclined porous deck to entrain greater specific gravity particles in the grooves.
|
125 |
Separation of particulate solids of varying densities in a fluidized bed |
US3774759D |
1970-12-16 |
US3774759A |
1973-11-27 |
WEINTRAUB M; DEURBROUCK A |
A particulate feedstock is separated into a light fraction and a heavy fraction by feeding it into a fluidized bed of particulate material whose particle size and specific gravity, relative to the particle sizes and specific gravities of said light and heavy fractions, are such that one of these fractions readily stratifies into an easily removable layer in the bed while the other fraction tends to remain intermixed with the bed material rather than stratifying. Said other fraction is removed as product from the bed while it is in said intermixed condition.
|
126 |
Gravity separation of particulate material |
US3439805D |
1965-05-03 |
US3439805A |
1969-04-22 |
WALSH TERENCE |
|
127 |
Fluidized bed separator |
US39929464 |
1964-10-12 |
US3349912A |
1967-10-31 |
FRANK EVESON GEOFFREY; THOMAS RICHARDS GEORGE |
|
128 |
Apparatus for the separation of particulate materials containing components of differnt specific gravities |
US32441163 |
1963-11-18 |
US3341015A |
1967-09-12 |
FRANK EVESON GEOFFREY; THOMAS RICHARDS GEORGE |
|
129 |
Progressive classifying or treating solids in a fluidized bed thereof |
US76984247 |
1947-08-21 |
US2586818A |
1952-02-26 |
VIGGO HARMS |
|
130 |
Gravity separator |
US40486441 |
1941-07-31 |
US2374865A |
1945-05-01 |
HAWORTH MACK E |
|
131 |
Separating process and apparatus |
US26786239 |
1939-04-14 |
US2210818A |
1940-08-06 |
REED JOSEPH W |
|
132 |
Cleaning device |
US23341927 |
1927-11-15 |
US1837299A |
1931-12-22 |
TAGGART EUGENE B |
|
133 |
Mineral separator |
US59657622 |
1922-10-24 |
US1634898A |
1927-07-05 |
DELAMATER GEORGE R |
|
134 |
INTELLIGENT CONTROL METHOD FOR DRY DENSE MEDIUM FLUIDIZED BED SEPARATOR |
US17432486 |
2020-06-22 |
US20220258176A1 |
2022-08-18 |
Liang DONG; Yuemin ZHAO; Yongxin REN; Guanghui WANG; Wei DAI; Enhui ZHOU; Chenlong DUAN; Yanjiao LI |
An intelligent control method for a dry dense medium fluidized bed separator includes supplying air to fluidize a bed; estimating an initial bed density according to a washability curve of a raw coal; detecting a magnetic material content in the bed to obtain a real-time bed density, and adjusting the real-time bed density according to a result from an analysis on a deviation from the initial bed density; during separation, adjusting a medium addition amount and a scraper discharge speed to maintain a stability of a bed height; separating the raw coal in the dry dense medium fluidized bed separator to obtain a clean coal product; and detecting a product ash content of the clean coal product, comparing the product ash content with a target ash content, and if a difference between the product ash content and the target ash content exceeds an expectation, adjusting the initial bed density. |
135 |
Methods and systems for sorting cottonseed |
US16667280 |
2019-10-29 |
US11298723B2 |
2022-04-12 |
Sebastian Ulrich Schmidt; Jeff Ratliff; Benno Franz Ulfik; Fatma Alexia Van Winssen; Tonya Crossland; Hartmut Huebner |
Methods and devices for sorting cottonseeds. Methods include the use of an optical sorter to sort cottonseed by color. Additionally, methods include sorting cottonseed using a gravity table to collect high-density seed (“accepts”) and mid-density seed (“middlings”), followed by sorting the mid-density, and optionally, the high-density seed using an optical sorter to collect dark cottonseed, thereby providing high-quality cottonseed for packaging. Devices and systems comprising one or more gravity tables and one or more optical sorters are provided. |
136 |
Screening device and method of screening |
US13807763 |
2011-06-28 |
US09033155B2 |
2015-05-19 |
Anders Kenneth Sorhuus |
A screening device (1) comprises a first compartment (3) for receiving solid particulate material, a second compartment (5) for receiving screened particulates from said first compartment (3), a perforated wall (7) separating the first (3) and second (5) compartments from each other for screening the solid particulate material into at least two particulate size-dependent fractions, and a gas permeable layer (21) for fluidization of particulates in said first compartment (3). The first compartment (3) is provided with a solid particulate material inlet (9) located at a first end (22) of screening device (1), and a particulate material outlet (11) located at a second end (24) of screening device (1), with perforated wall (7) extending from first end (22) to second end (24) of screening device (1), enabling simultaneous transport and screening of at least a portion of said solid particulate material. |
137 |
Fly ash processing using inclined fluidized bed and sound wave agitation |
US834540 |
1997-03-04 |
US5996808A |
1999-12-07 |
Edward Kenneth Levy; James Walter Parkinson; Barbara Jean Arnold; John Sigmund Salmento |
A process and device for separating different types of particulates from a mixture, which is especially suited for separating unburned carbon from raw fly ash. The process entails separating raw fly ash by size into a fine component and a coarse component (the coarse component having typically higher levels of unburned carbon). The coarse, high carbon, fly ash component (or optionally both components) are processed through an inclined fluidized bed to produce an upgraded coarse component with reduced unburned carbon. An acoustic field is imposed on the inclined fluidized bed(s) in order to enhance the bed's ability to fluidize and segregate the unburned carbon. The upgraded coarse and fine components are then mixed to yield a final product. |
138 |
Method and apparatus for the classification of solid particles |
US750540 |
1997-02-11 |
US5908115A |
1999-06-01 |
Gabriele Govoni; Arrigo Arletti |
A method and apparatus for the classification of solid particles, in particular powdery catalytic components for the polymerization of olefins, which comprises sending solid particles suspended in a transporting gas flow through a screening device. Immediately upstream to the screening device there is an auxiliary fluidized bed classifier, in which the top of the bed is at the level of the lower part of the screening device. |
139 |
Apparatus and process for separating a material in fluidized bed form
and the detection of clogging |
US78065 |
1993-06-18 |
US5299694A |
1994-04-05 |
Rene C. Rambaud |
Apparatus and method for handling pulverulant material in fluidized bed form. The material is fed into the upper part of a two-part container, whose lower part consists of two independent volumes separated from the upper part by a porous wall comprising two horizontal parts at different levels. A pressure gap is created between the two separate volumes, and the evolution of this gap enables clogging to be detected. When the pressure differential exceeds a predetermined value, the porous wall is cleaned. |
140 |
Wind tunnel for cleaning and classifying solid particle form material |
US872603 |
1992-04-23 |
US5281278A |
1994-01-25 |
Peter Stein |
A chamber has upwardly diverging walls so that an upward airstream has different air speeds at different heights in the chamber. When particles such as seeds are put into the chamber, they reach equilibrium at different heights depending on their weights. A horizontal conveyor airstream, much less in magnitude than the upward airstream, directs the classified-by-height particles to a side wall of the chamber, where they are removed. |