公开(公告)号：WO2023041410A1

公开(公告)日：2023-03-23

申请号：PCT/EP2022/074951

申请日：2022-09-08

Applicant: FLSMIDTH A/S

Inventor： RYDENG, Peter Enemark

IPC: F27B7/20 ,  C04B7/43 ,  C04B7/44 ,  F27D17/00

Abstract: The invention relates to a system for extraction of hot combustion gas to supply heat for separate use, said hot combustion gas extracted from a preheater(1) of a clinker burning department in a plant for manufacture of cement clinker, said plant comprising a preheater(1), a rotary kiln(3), a clinker cooler(4), said preheater(1) comprising two or more cyclone stages,where the hot combustion gas is extracted from one or more locations between a rotary kiln gas outlet(32) and an exhaust gas outlet stage cyclone(1a) of the preheater(1), said plant being connected to a separate use application which is a heat consuming process or plant which can receive a heat input as hot combustion gas from said clinker burning department, wherein the extraction of hot combustion gas utilizes a heat transformation effect of the preheater(1).

公开(公告)号：WO2014048435A1

公开(公告)日：2014-04-03

申请号：PCT/DK2013/050282

申请日：2013-09-05

Applicant: FLSMIDTH A/S

Inventor： RYDENG, Peter Enemark

IPC: F27B7/20

CPC classification number: F27B7/2033 ,  C04B7/432

Abstract: Described is a plant for manufacturing cement clinker comprising a preheater (6) for preheating cement raw meal by contact with hot gases which preheater comprises a number of cyclone stages (1, 2, 3, 4) which are connected in series via gas ducts (7, 8, 9, 10), a heat treatment unit (11) which comprises at least one inlet opening (12) for introducing preheated raw meal from at least one preheater cyclone (4b) in a selected cyclone stage (4), where a gas outlet of said at least one preheater cyclone (4b) in the selected cyclone stage (4) in a vertical plane is located at a higher level than a gas/meal inlet of the preceding cyclone stage (3) as seen in the direction of movement of the cement raw meal. The plant is peculiar in that the selected cyclone stage comprises an additional cyclone which is placed in parallel to the other cyclone(s) in said cyclone stage and having in said vertical plane a gas outlet located at a lower level than said gas/material inlet of said preceding cyclone stage, and in that the gas ducts from the cyclones in the selected cyclone stage are merged into one single gas duct for conducting the mixed gases to said preceding cyclone stage. Hence, without affecting the installation height of the preheater, it will be possible to locate at least one of the cyclones of the selected cyclone stage at an arbitrary height relative to the other cyclone(s) in said cyclone stage, while simultaneously ensuring that raw meal from a preceding cyclone stage in an optimum way may be introduced into an upwardly flowing gas stream from said selected cyclone stage, i.e. in the gas duct from the additional cyclone. Preheated raw meal from the selected cyclone stage can therefore be introduced at any point into the heat treatment unit without any use of special lifting equipment. By proper mutually sizing of the cyclones of the selected cyclone stage, the amount of raw meal, which is lifted to a higher level, may be tailored the actual quantity needed for introduction at the higher located intake point.

Abstract translation: 描述了一种用于制造水泥熟料的设备，其包括用于通过与热气体接触预热水泥生料的预热器（6），预热器包括多个通过气体管道串联连接的旋风分级器（1,2,3,4） 7，8,9,10），热处理单元（11），其包括至少一个入口开口（12），用于将来自至少一个预热器旋风分离器（4b）的预热的生料从所述旋风分级器（4）中引入， 所选择的旋风分级器（4）中的垂直平面中的所述至少一个预热器旋风分离器（4b）的气体出口位于比前一旋风分级（3）的气/ 的水泥生料的运动。 该设备是特殊的，因为所选择的旋风分级包括附加旋风分离器，该旋风分离器与所述旋风分级器中的其它旋风分离器平行放置，并且在所述垂直平面中具有位于比所述气体/材料入口更低的气体出口 并且所选择的旋风分级器中的旋风分离器的气体管道被合并成一个单一的气体管道，用于将混合气体导入前述旋风分离器阶段。 因此，在不影响预热器的安装高度的情况下，可以将所选择的旋风分级器中的至少一个旋风分离器定位在相对于所述旋风分级器中的其它旋风分离器的任意高度，同时确保原料 可以以最佳方式从先前的旋风分级进料的粉末从所述选择的旋风分级引入到向上流动的气流中，即在来自附加旋风分离器的气体管道中。 因此，可以将任选的旋风分离器的预热生料进入热处理单元，而无需使用特殊的起重设备。 通过适当地相互调整所选择的旋风分离器的旋风分离器，将提升到较高水平的生料量可以调整为在较高位置的进气点引入所需的实际量。