ULTRA-LIGHT MINERAL FOAM HAVING WATER REPELLENT PROPERTIES

    公开(公告)号:US20210214278A1

    公开(公告)日:2021-07-15

    申请号:US17059691

    申请日:2019-05-29

    Abstract: A process for producing a mineral foam having water repellent properties includes a) separately preparing a slurry of cement and an aqueous foam, wherein the cement slurry includes water, at least one water repellent agent different from organosilicon compound, and Portland cement and the aqueous foam includes a co-stabiliser; b) contacting the slurry of cement with the aqueous foam to obtain a slurry of foamed cement; and c) casting the slurry of foamed cement and leave the slurry of foamed cement to set.

    ARRANGEMENT FOR SUPPORTING A ROTARY DRUM

    公开(公告)号:US20210199380A1

    公开(公告)日:2021-07-01

    申请号:US17204623

    申请日:2021-03-17

    Inventor: Thomas STUTZ

    Abstract: An arrangement for supporting a rotary drum, the rotary drum having at least three riding rings distributedly arranged along the axial direction of the rotary drum, the arrangement including a pair of relatively spaced rollers for supporting a riding ring, at least one bearing for each roller, a support for each bearing mounted for movement of the roller toward and away from the shell of the rotary drum and a spring system exerting a spring force acting on the support to counteract the weight of the rotary drum resting on the rollers, wherein the spring system includes a pressure vessel charged with a compressed gas that exerts the spring force and the rotary drum includes at least three riding rings and only at least one middle ring arranged between two outer rings is supported by a pair of relatively spaced rollers that are equipped with the spring system.

    FOUNDATION FOR A WIND MILL
    143.
    发明申请

    公开(公告)号:US20210180282A1

    公开(公告)日:2021-06-17

    申请号:US17191144

    申请日:2021-03-03

    Abstract: A foundation for a wind mill includes a circular or polygonal pedestal for supporting a wind mill tower and a plurality of ribs radiating radially outwardly from the pedestal, wherein the pedestal is divided into a plurality of circumferential sections, wherein a circumferential section and a rib are each integrally formed with one another as a precast concrete element, wherein the precast concrete elements are made from reinforced concrete including a first reinforcement structure, in particular reinforcement bars, embedded into the precast concrete elements, a second reinforcement structure is provided, which holds the precast concrete elements together and which is coupled to the first reinforcement structure.

    Method and apparatus for reducing the NOx emissions in a rotary kiln

    公开(公告)号:US10914522B2

    公开(公告)日:2021-02-09

    申请号:US15758191

    申请日:2016-08-30

    Inventor: Irwin Gafner

    Abstract: In a method for reducing the NOx emissions of a rotary kiln of a clinker production plant, fuel supplied through a burner of the rotary kiln is burned along with primary air fed through the burner, wherein the primary air has a lower oxygen content and the primary air has an oxygen content reduced relative to that of the ambient air and a temperature increased relative to that of the ambient air, and the primary air is obtained by mixing ambient air with exhaust gas from the rotary kiln or from a heat exchanger connected to the rotary kiln and used for preheating raw meal. The primary air is further obtained by mixing with hot air, in particular waste air from a clinker cooler.

    TREATMENT OF POLLUTED AQUEOUS LIQUIDS

    公开(公告)号:US20210009449A1

    公开(公告)日:2021-01-14

    申请号:US16506110

    申请日:2019-07-09

    Abstract: A method of treatment of aqueous liquid contaminated by pollutants, includes (i) mixing the contaminated aqueous liquid with a mineral binder in order to produce an homogeneous slurry, (ii) depositing the slurry, (iii) letting the slurry set and harden, wherein the mineral binder includes Portland cement, and wherein the contaminated aqueous liquid includes organic pollutants.

    Method for treating waste
    149.
    发明授权

    公开(公告)号:US10427193B2

    公开(公告)日:2019-10-01

    申请号:US15569872

    申请日:2016-04-08

    Inventor: Beat René Maier

    Abstract: In a method for treating waste, in particular domestic waste, comprising the providing of a closed building for receiving the waste, the roof of the building being designed as a semi-permeable membrane, the filling of the building with the waste, the waste being piled into a mound, the performing of a biological drying of the waste with the supply of air, the air exhaust taking place through the semi-permeable membrane, and the discharging of the dried waste from the building, the filling of the building and the performing of the biological drying, and optionally discharging, of the waste are carried out with an unchanged arrangement of the roof, and the filling of the building is carried out by dropping the waste from a continuous conveying device.

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