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公开(公告)号：EP2300562A1
公开(公告)日：2011-03-30
申请号：EP09757534.4
申请日：2009-06-02
申请人： Paul Wurth S.A.
发明人： SCHMIT, Louis , STAMATAKIS, Georges , JUNK, Guy
摘要： Method for producing pulverized coal, the method comprising the steps of heating a drying gas, preferably an inert gas, in a hot gas generator (26) to a predefined temperature; feeding the heated drying gas into a pulverizer (20); introducing raw coal into the pulverizer (20), the pulverizer (20) grinding the raw coal into pulverized coal; collecting a mixture of drying gas and pulverized coal from the pulverizer (20) and feeding the mixture to a filter (34), the filter (34) separating the dried pulverized coal from the drying gas; collecting the dried pulverized coalfor further use and feeding the drying gas from the filter (34) to a recirculation line (38) for returning at least part of the drying gas to the hot gas generator (26); and determining an oxygen level in the drying gas, preferably in the recirculation line (38), and comparing the determined oxygen level to a predetermined oxygen level threshold. According to a preferred embodiment of the invention, if the determined oxygen level is higher than a predetermined oxygen threshold, water is injected into the heated drying gas before it is fed into the pulverizer (20), the volume of water injected being calculated so as to reduce the oxygen level below the predetermined oxygen level threshold.
摘要翻译： 用于生产煤粉的方法，该方法包括以下步骤：在热气发生器（26）中将干燥气体，优选惰性气体加热至预定温度; 将加热的干燥气体送入粉碎机（20）; 将原煤引入粉碎机（20）中，粉碎机（20）将原煤磨碎成粉煤; 从粉碎机（20）收集干燥气体和粉煤的混合物并将混合物供给过滤器（34），过滤器（34）将干燥的粉煤与干燥气体分离; 收集干燥的煤粉以供进一步使用，并将来自过滤器（34）的干燥气体送入再循环管线（38），以便将至少部分干燥气体返回到热气发生器（26）; 以及确定干燥气体中的氧气水平，优选在再循环管线（38）中，并且将确定的氧气水平与预定的氧气水平阈值进行比较。 根据本发明的优选实施例，如果所确定的氧气水平高于预定的氧气阈值，则在加热到干燥气体中之前将水注入到粉碎机（20）中，注入的水量被计算为 以将氧气水平降低到预定氧气水平阈值以下。
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2.发明公开VORRICHTUNG ZUM KONTINUIERLICHEN EINSPEISEN EINES PULVERF RM IGEN FESTSTOFFS IN EINE PNEUMATISCHE F RDERLEITUNG 有权DEVICE FOR连续进料的粉状RM IGEN固体物质为气动˚FRDERLEITUNG
公开(公告)号：EP1628897A1
公开(公告)日：2006-03-01
申请号：EP04731021.4
申请日：2004-05-04
申请人： PAUL WURTH S.A.
发明人： GOEDERT, Paul , JUNK, Guy , KROEMMER, Yvan , SCHMIT, Louis
摘要： A device for continuously feeding a powdery solid out of a storage bin (10) and into a pneumatic conveying line (12, 12') comprises a first and a second intermediate vessel (14 and 16) that are placed adjacent to one another. The first intermediate vessel (14) is provided in the form of a sluice vessel having an upper sluice gate (18) and a lower sluice gate (20). The second intermediate vessel (16) is provided in the form of an injection vessel. A pneumatic intermediate conveyance (50) is placed between the lower sluice gate (20) of the first intermediate vessel (14) and an upper inlet (30) of the second intermediate vessel (16). This intermediate conveyance enables the powdery solid to be conveyed out of the first intermediate vessel (14) and into the second intermediate vessel (16).
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公开(公告)号：EP2300561A1
公开(公告)日：2011-03-30
申请号：EP09757532.8
申请日：2009-06-02
申请人： Paul Wurth S.A.
发明人： SCHMIT, Louis , STAMATAKIS, Georges , JUNK, Guy
CPC分类号： C10B57/10 , C21B5/003 , F26B17/103 , F26B21/06
摘要： Method for producing pulverized coal, the method comprising the steps of heating a drying gas, preferably an inert gas, in a hot gas generator (26) to a predefined temperature; feeding the heated drying gas into a pulverizer (20); introducing raw coal into the pulverizer (20), the pulverizer (20) grinding the raw coal to pulverized coal; collecting a mixture of drying gas and pulverized coal from the pulverizer (20) and feeding the mixture to a filter (34), the filter (34) separating the dried pulverized coal from the drying gas; and collecting the dried pulverized coal for further use and feeding part of the drying gas from the filter to a recirculation line (38) for returning at least part of the drying gas to the hot gas generator (26). According to an important aspect of the present invention, the method comprises the further step of controlling an exit temperature of the mixture of drying gas and pulverized coal exiting the pulverizer (20) by controlling a volume of water injected into the heated drying gas before feeding it into the pulverizer (20).
摘要翻译： 用于生产煤粉的方法，该方法包括以下步骤：在热气发生器（26）中将干燥气体，优选惰性气体加热至预定温度; 将加热的干燥气体送入粉碎机（20）; 将原煤引入粉碎机（20）中，粉碎机（20）将原煤磨碎成粉煤; 从粉碎机（20）收集干燥气体和粉煤的混合物并将混合物供给过滤器（34），过滤器（34）将干燥的粉煤与干燥气体分离; 并收集干燥的煤粉以供进一步使用，并将部分干燥气体从过滤器供应到用于使至少部分干燥气体返回到热气体发生器（26）的再循环管线（38）。 根据本发明的一个重要方面，该方法还包括以下步骤：通过控制在喂入之前注入加热的干燥气体中的水的体积来控制离开粉碎机（20）的干燥气体和粉煤的混合物的出口温度 它进入粉碎机（20）。
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公开(公告)号：EP2208001B1
公开(公告)日：2018-05-30
申请号：EP08849070.1
申请日：2008-11-14
申请人： PAUL WURTH S.A.
IPC分类号： F23K3/02
CPC分类号： F23K3/02 , F23K2203/006 , F23K2203/201
摘要： An injection system for solid particles comprises a conveying hopper (11) located at an upstream location (1), a fluidizing device (21) for fluidizing the solid particles at the outlet of the conveying hopper (11) and forming a solid-gas flow, a pneumatic conveying line (15) for conveying the solid-gas flow from the fluidizing device (21) to a downstream location (2) and a static distribution device (17) with a plurality of injection lines (19), connected thereto. An upstream flow control system controls the mass flow rate in the pneumatic conveying line (15) at the upstream location (1) by controlling the opening of an upstream flow control valve (35) responsive to the solid material mass flow measured in the pneumatic conveying line (15) at the upstream location (1). A downstream flow control system controls the mass flow rate in the pneumatic conveying line (15) at the downstream location (2) by controlling the opening of a downstream flow control valve (51, 79i) responsive to the instantaneous mass flow rate sensed by a main downstream mass flow rate sensor (53).
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公开(公告)号：EP2300562B1
公开(公告)日：2015-02-25
申请号：EP09757534.4
申请日：2009-06-02
申请人： Paul Wurth S.A.
发明人： SCHMIT, Louis , STAMATAKIS, Georges , JUNK, Guy
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公开(公告)号：EP2208001A1
公开(公告)日：2010-07-21
申请号：EP08849070.1
申请日：2008-11-14
申请人： PAUL WURTH S.A.
IPC分类号： F23K3/02
CPC分类号： F23K3/02 , F23K2203/006 , F23K2203/201
摘要： An injection system for solid particles comprises a conveying hopper (11) located at an upstream location (1), a fluidizing device (21) for fluidizing the solid particles at the outlet of the conveying hopper (11) and forming a solid-gas flow, a pneumatic conveying line (15) for conveying the solid-gas flow from the fluidizing device (21) to a downstream location (2) and a static distribution device (17) with a plurality of injection lines (19), connected thereto. An upstream flow control system controls the mass flow rate in the pneumatic conveying line (15) at the upstream location (1) by controlling the opening of an upstream flow control valve (35) responsive to the solid material mass flow measured in the pneumatic conveying line (15) at the upstream location (1). A downstream flow control system controls the mass flow rate in the pneumatic conveying line (15) at the downstream location (2) by controlling the opening of a downstream flow control valve (51, 79i) responsive to the instantaneous mass flow rate sensed by a main downstream mass flow rate sensor (53).
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7.发明授权VORRICHTUNG ZUM KONTINUIERLICHEN EINSPEISEN EINES PULVERF RM IGEN FESTSTOFFS IN EINE PNEUMATISCHE F RDERLEITUNG 有权DEVICE FOR连续进料的粉状RM IGEN固体物质为气动˚FRDERLEITUNG
公开(公告)号：EP1628897B1
公开(公告)日：2007-10-17
申请号：EP04731021.4
申请日：2004-05-04
申请人： PAUL WURTH S.A.
发明人： GOEDERT, Paul , JUNK, Guy , KROEMMER, Yvan , SCHMIT, Louis
摘要： A device for continuously feeding a powdery solid out of a storage bin (10) and into a pneumatic conveying line (12, 12') comprises a first and a second intermediate vessel (14 and 16) that are placed adjacent to one another. The first intermediate vessel (14) is provided in the form of a sluice vessel having an upper sluice gate (18) and a lower sluice gate (20). The second intermediate vessel (16) is provided in the form of an injection vessel. A pneumatic intermediate conveyance (50) is placed between the lower sluice gate (20) of the first intermediate vessel (14) and an upper inlet (30) of the second intermediate vessel (16). This intermediate conveyance enables the powdery solid to be conveyed out of the first intermediate vessel (14) and into the second intermediate vessel (16).
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