公开(公告)号：US20230243586A1

公开(公告)日：2023-08-03

申请号：US18102107

申请日：2023-01-27

Applicant: Institute of Process Engineering, Chinese Academy of Sciences

Inventor： Tingyu ZHU ,  Wenqing XU ,  Jun XIE ,  Chaoqun LI ,  Yixi WANG

IPC: F27B7/36 ,  F27D17/00 ,  F27D15/02

CPC classification number: F27B7/362 ,  F27D17/008 ,  F27D15/02 ,  F27D17/004 ,  F27B2007/365

Abstract: The present application discloses a pellet flue gas circulation and waste heat utilization process and a system thereof, which relates to the technical field of flue gas treatment. The system includes a grate, a rotary kiln, an annular cooler, and ducts connecting each part. On the basis of not changing the existing process a flue gas circulation unit and intelligent control equipment are arranged additionally in the present application. The process is simple, and not only can ensure the parameter stability of the production system such as temperature, gas flow or gas pressure, but also can make full use of the low and medium temperature flue gas components and the waste heat, so as to achieve net zero waste gas discharging, energy saving and emission reduction.

公开(公告)号：US20230152037A1

公开(公告)日：2023-05-18

申请号：US17922946

申请日：2021-04-30

Applicant: thyssenkrupp Industrial Solutions AG

Inventor： Anna Ivanova DINKOVA ,  Jost LEMKE ,  Karl LAMPE ,  Eike WILLMS

IPC: F27B7/42 ,  F27B7/36 ,  F27D19/00 ,  C04B7/43 ,  C04B7/44 ,  C04B7/47

CPC classification number: F27B7/42 ,  F27B7/36 ,  F27D19/00 ,  C04B7/432 ,  C04B7/434 ,  C04B7/4476 ,  C04B7/47 ,  F27M2003/03 ,  F27D2019/0003

Abstract: A cement production plant may include a preheater for preheating raw meal, a calciner for calcining the preheated raw meal, and a furnace with a furnace burner for firing the raw meal to form cement clinker. The furnace has a combustion gas inlet for admitting a combustion gas with an oxygen content of 30% to 75% into the furnace. The cement production plant may also include a cooler for cooling the cement clinker. The calciner and the furnace each have at least one respective fuel inlet for admitting at least one fuel into the calciner and the furnace. The calciner and the furnace each have at least one respective inert gas inlet for respectively admitting inert gas into the calciner and the furnace.

公开(公告)号：US10527280B2

公开(公告)日：2020-01-07

申请号：US15307708

申请日：2015-05-22

Applicant: NOVELIS INC.

Inventor： Edwin L. Rauch

IPC: F27B7/36 ,  F23G5/027 ,  F27D7/02 ,  F27D17/00 ,  B08B7/00 ,  F23G5/20

Abstract: A high organic concurrent decoating kiln includes a low-oxygen zone and a high-oxygen zone. The disclosed kiln allows a gas low in free oxygen to be used in the initial stages of decoating, while a gas higher in free oxygen can be used in the final stages. The total amount of free oxygen used throughout the kiln, in particular at the upstream portion of the kiln, is kept low. Exhaust gas can be recirculated for use in a burner-fired chamber that provides the initial low-oxygen gas to the kiln.

公开(公告)号：US10287523B2

公开(公告)日：2019-05-14

申请号：US15038600

申请日：2014-11-12

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Keiichi Nakagawa ,  Setsuo Omoto

IPC: C10L5/04 ,  C10L9/00 ,  C10L9/08 ,  F27B7/36 ,  F27B7/32 ,  C10L9/12 ,  F27D9/00 ,  F27B7/38 ,  F27B7/33

Abstract: A coal deactivation processing device includes: a rotary kiln body provided rotatably into which coal and a processing gas are supplied; and a feed pipe provided so as to be able to rotate along with the rotary kiln body, extending along a lengthwise direction of the rotary kiln body, and having a coolant flowing therein. A pair of blades is provided on an outer circumferential section of the feed pipe and protrudes in a radial direction. The feed pipe and the pair of blades are arranged so as to pass through an accumulated coal layer of the coal within the rotary kiln body upon rotation of the rotary kiln body, and such that an angle formed by a tangent of a path along which the central axis of the feed pipe passes and the bisector of the pair of blades is from 0 to 40 degrees.

公开(公告)号：US10280114B2

公开(公告)日：2019-05-07

申请号：US15539910

申请日：2015-12-24

Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

Inventor： Bernard Labegorre ,  Carlo Renna ,  Remi Tsiava ,  Sergio Fernandes

IPC: F27B7/12 ,  F27B7/00 ,  C04B7/44 ,  C04B7/36 ,  F23G5/20 ,  F27B7/34 ,  F27B7/36 ,  C04B2/10 ,  F27B7/14 ,  F27B7/33 ,  F27B7/38

Abstract: Method of operating a long direct-fired inclined counterflow rotary kiln for the thermal treatment of material and counterflow rotary kiln adapted for same, whereby material to be treated is introduced into the kiln at the inlet end and treated material is evacuated from the kiln at the outlet end, whereby a main combustion zone extends inside the kiln over a distance of ¼ to ⅓ of the internal length Lint of the kiln, whereby a supplementary combustion zone in which supplementary combustion takes place with an oxygen-rich oxidant extends inside the kiln over a distance from the inlet end of at most ¼ of the internal length Lint, and whereby no combustion takes place in a heat exchange zone located between the main combustion zone and the supplementary combustion zone.

公开(公告)号：US10260808B2

公开(公告)日：2019-04-16

申请号：US15370267

申请日：2016-12-06

Applicant: Clive R. Stamp

Inventor： Clive R. Stamp

IPC: F27B7/10 ,  G21D9/00 ,  C04B2/10 ,  F27B15/00 ,  C01B3/02 ,  C10G2/00 ,  F27B7/36 ,  F27B15/14 ,  G21C1/07 ,  C01B32/50

Abstract: Apparatus for the production of carbon dioxide from limestone includes a nuclear reactor (10) for generating heat and a rotary kiln (12). The rotary kiln (12) has an inlet (28) for the introduction of limestone and an outlet (30) for the release of carbon dioxide. A heat transfer arrangement is provided for transferring heat from the nuclear reactor (10) to the interior of the rotary kiln (12). The heat transfer arrangement includes feed and return primary conduits (17,18) for passing a heat transfer fluid (14) through the nuclear reactor (10) so that heat may be extracted from the nuclear reactor (10) for transfer to the interior of the rotary kiln (12). Limestone in the rotary kiln (12) is thereby heated to a temperature sufficient for the release of carbon dioxide.

公开(公告)号：US20190093017A1

公开(公告)日：2019-03-28

申请号：US16185424

申请日：2018-11-09

Applicant: Shuhong ZHU

Inventor： Shuhong ZHU

IPC: C10B5/10 ,  F27B7/14 ,  F27B7/20 ,  F27B7/34 ,  F27B7/36 ,  F27B7/42 ,  C10B27/06 ,  C10B41/00 ,  C10B47/30 ,  C10B57/14

Abstract: A material heating device comprises a rotary kiln, a plurality of heat exchange tubes, a hot air hood, a high-temperature gas input mechanism, an exhaust-gas collecting chamber, and an exhaust-gas output pipeline. The rotary kiln is provided with a material feed end and a material discharge end. The heat exchange tubes are in the rotary kiln. The hot air hood is outside the rotary kiln. The air inlet ends of the heat exchange tubes communicate with the hot air hood, and the air outlet ends of the heat exchange tubes communicate with the exhaust-gas collecting chamber. The exhaust-gas collecting chamber communicates with the exhaust-gas output pipeline. The hot air hood communicates with the high-temperature gas input mechanism, and the cavity between the heat exchange tubes and the heat insulation layer of the rotary kiln is a material channel. The heat exchange tubes are directly in contact with the material.

公开(公告)号：US20180017328A1

公开(公告)日：2018-01-18

申请号：US15207686

申请日：2016-07-12

Applicant: Air Liquide Industrial U.S. LP

Inventor： Stewart C. JEPSON

IPC: F27D3/16 ,  F27B7/10 ,  F27B7/34 ,  F27D7/02 ,  F27B7/06 ,  F27B7/36 ,  F27B7/20

CPC classification number: F27D3/16 ,  F27B7/06 ,  F27B7/10 ,  F27B7/2083 ,  F27B7/34 ,  F27B7/362 ,  F27B2007/367 ,  F27D7/02 ,  F27D2003/167 ,  F27D2007/023

Abstract: A gas inerting system and method is provided. This system includes a rotary melting furnace with a furnace barrel, a burner, and a charge of metal to be melted; and an injection manifold with a plurality of injection orifices. The burner is configured to produce a flame directed into the furnace barrel, and the plurality of injection orifices are configured to disperse inert gas streams into the furnace barrel, into an inerting region between the burner flame and the charge of aluminum. The metal to be melted may be aluminum. The method of inerting includes rotating the rotary furnace and introducing heat into the furnace barrel by generating the flame, thereby beginning a melt cycle, then introducing the inert gas streams into an inlet to the injection manifold, thereby directing the inert gas streams through the injection orifices and into the inerting region, after a predetermined condition has been met.

公开(公告)号：US08876525B2

公开(公告)日：2014-11-04

申请号：US13002808

申请日：2009-07-08

Applicant: Charles Euston

Inventor： Charles Euston

IPC: F27B7/36 ,  F27B1/00 ,  C04B2/12

CPC classification number: F27B1/005 ,  C04B2/12

Abstract: A method for removing sulfur containing dust particles from particulate material exiting a material preheater in which the particulate material is heated by kiln off gases may include a number of steps. Off gases from the kiln are directed through a gas conduit to the preheater to preheat particulate material traveling through the preheater in a direction countercurrent to the direction of off gas flow through the preheater. Material exiting the preheater is directed to a material bypass conduit that is separated from the gas conduit and is flow connected to a material inlet to the kiln. A stripping gas is directed through the conduit to entrain dust particles in the preheated material and to carry said dust particles away from the preheated material.

Abstract translation: 从颗粒材料离开材料预热器的颗粒材料中除去含硫灰尘颗粒的方法，其中颗粒材料通过窑尾气体加热可包括多个步骤。 来自窑的废气通过气体管道被引导到预热器，以预热通过预热器行进的颗粒物质沿与通过预热器的气流流动方向相反的方向。 离开预热器的材料被引导到与气体导管分离并且连接到窑的材料入口的材料旁路管道。 汽提气体被引导通过管道，以将灰尘颗粒夹带在预热的材料中并将所述灰尘颗粒从预热的材料上运送。

公开(公告)号：US08500444B2

公开(公告)日：2013-08-06

申请号：US12842582

申请日：2010-07-23

Applicant: Hiroki Kumagai ,  Fumihiko Kato ,  Sadahiko Kawasaki

Inventor： Hiroki Kumagai ,  Fumihiko Kato ,  Sadahiko Kawasaki

IPC: F27B7/36

CPC classification number: F27B7/3205 ,  F27B7/26 ,  F27B7/34 ,  F27B7/38 ,  F27D3/08 ,  F27D9/00 ,  H01M4/5825 ,  H01M4/587

Abstract: A rotary kiln includes a cylindrical shell that rotates about its own axis and that has a heat treatment chamber provided radially inward of the shell. In the rotary kiln, a heat treatment is performed on a process material in the heat treatment chamber to manufacture a battery material. The shell is made of a carbon material. Since the shell is made of a carbon material, the rotary kiln can suppress contamination of metal scale, which adversely affects the battery material, into the battery material.

Abstract translation: 旋转窑包括围绕其自身轴线旋转的圆柱形壳体，并且具有设置在壳体的径向内侧的热处理室。 在回转窑中，对热处理室中的处理材料进行热处理以制造电池材料。 壳由碳材料制成。 由于外壳由碳材料制成，所以回转窑可以抑制电池材料对电池材料的不良影响的金属垢的污染。