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公开(公告)号：US4235858A
公开(公告)日：1980-11-25
申请号：US27694
申请日：1979-04-06
CPC分类号： C01B21/40
摘要： In a process for producing nitric acid, a mixture of oxygen, nitrogen, nitric oxide, nitrogen dioxide, and dinitrogen tetroxide is introduced into an absorption column into which cold oxygen (below 0.degree. C.) is introduced. H.sub.2 O is introduced into the upper reaches of the column and reacts with the nitrogen dioxide and dinitrogen tetroxide to form nitric acid. The low oxygen temperature helps to shift the equilibrium between nitric oxide and oxygen to dinitrogen tetroxide and in favor of reacting the latter with water to form nitric acid.
摘要翻译： 在生产硝酸的方法中，将氧，氮，一氧化氮，二氧化氮和四氧化二氮的混合物引入到其中引入冷氧（低于0℃）的吸收塔中。 将H 2 O引入塔的上游并与二氧化氮和四氧化二氮反应形成硝酸。 低氧温度有助于将一氧化氮和氧气之间的平衡转移到四氧化二氮，有利于使后者与水反应形成硝酸。
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公开(公告)号：US4183906A
公开(公告)日：1980-01-15
申请号：US915861
申请日：1978-06-15
CPC分类号： C01B21/26
摘要： An improved process for the manufacture of nitric acid involving catalytic oxidation of ammonia and passage of the resulting nitric oxide through columnar absorption zones, the improvement particularly comprising oxygen-enrichment of that gas passing through the absorption zones at one or more regions of the zones wherein the absorption reaction is from 50 to 90% complete. Further, the invention contemplates the oxygen-enrichment of bleaching air and a reduction in the rate at which bleaching air or other air is taken to form secondary air. The invention results in improved production rates of nitric acid and reductions in the concentration of nitrogen oxides in vent gas.
摘要翻译： 一种用于制造涉及氨的催化氧化和通过柱状吸收区使所产生的一氧化氮通过的硝酸的改进方法，其特征在于，包括通过在一个或多个区域的区域中通过吸收区的气体的富氧 吸收反应完全为50〜90％。 此外，本发明考虑了漂白空气的富氧和降低漂白空气或其它空气以形成二次空气的速率。 本发明导致硝酸的生产率提高，排气中的氮氧化物浓度降低。
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公开(公告)号：US4256721A
公开(公告)日：1981-03-17
申请号：US14674
申请日：1979-02-23
CPC分类号： C01B17/503
摘要： In a process for thermally cracking waste sulphuric acid, a combustible material is mixed with such acid and the mixture is supplied to a burner to which a flow of atomizing air is also supplied. A flow of secondary air which is enriched to about 23-40% by volume of oxygen is injected into a flame generated by burning said waste sulphuric acid-combustible material mixture to thereby thermally crack such acid while reducing the production of by-product sulphur trioxide.
摘要翻译： 在废硫酸热裂解的方法中，将可燃材料与这种酸混合，并将混合物供给到也供应雾化空气流的燃烧器。 将浓缩至约23-40体积％的氧气的二次空气流注入通过燃烧所述废硫酸可燃材料混合物而产生的火焰中，从而热裂裂该酸，同时减少副产物三氧化硫的产生 。
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公开(公告)号：US5352433A
公开(公告)日：1994-10-04
申请号：US20624
申请日：1987-03-02
申请人： Richard W. Watson
发明人： Richard W. Watson
CPC分类号： B01D53/52 , C01B17/0421
摘要： A hydrogen sulphide containing feed gas stream (typically including at least 70% by volume of hydrogen sulphide) is divided into a minor stream and a major stream. The minor stream is burnt in a first combustion region to form sulphur dioxide and water vapor. The resulting gas mixture is cooled in a heat exchanger and is employed in a second combustion region in which a portion of the hydrogen sulphide content of the major stream is burnt to form sulphur dioxide and water vapor. Reaction between the sulphur dioxide and remaining hydrogen sulphide takes place in a thermal reaction region to form sulphur vapor and water vapor. The proportions of sulphur burnt in the respective combustion regions and are chosen such that about one-third of the total hydrogen sulphide content of the feed gas stream is burnt to sulphur dioxide in these regions. Subsequent reaction between hydrogen sulpide and sulphur dioxide typically takes place in one or more catalytic reaction regions resulting with sulphur vapor being extracted in sulphur condensers. By using substantially pure oxygen to support combustion in the second combustion region, a relatively large flow rate of feed gas mixture may be handled in a plant of given size.
摘要翻译： 含有硫化氢的原料气流（通常包含至少70体积％的硫化氢）被分成小流和主流。 小流在第一燃烧区域燃烧以形成二氧化硫和水蒸气。 所得气体混合物在热交换器中冷却，并用于第二燃烧区域，其中主要流的一部分硫化氢含量被燃烧以形成二氧化硫和水蒸汽。 二氧化硫和剩余硫化氢之间的反应发生在热反应区域以形成硫蒸气和水蒸气。 在相应燃烧区域中燃烧的硫的比例被选择为使得进料气流中约三分之一的总硫化氢含量被燃烧到这些区域中的二氧化硫。 硫化氢和二氧化硫之间的后续反应通常发生在一个或多个催化反应区域中，由硫磺蒸气在硫磺冷凝器中提取。 通过使用基本上纯的氧来支持第二燃烧区域中的燃烧，可以在给定尺寸的设备中处理较大的进料气体混合物流量。
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公开(公告)号：US20140262522A1
公开(公告)日：2014-09-18
申请号：US13845556
申请日：2013-03-18
申请人： Richard W. Watson
发明人： Richard W. Watson
IPC分类号： E21B27/04
CPC分类号： E21B27/00 , E21B7/003 , E21B10/325
摘要： The current application provides an Axially Separating Drill Bucket for drilling large holes in the earth by which a drilling operator can perform the drilling operation with the Axially Separating Drill Bucket and remove the excavated material in one operation. The unit can be raised to the surface where the bucket portion is separated from the drill head to empty the excavated material.
摘要翻译： 目前的应用提供了一种用于在地球上钻出大孔的轴向分离钻杆，钻孔操作者可以通过轴向分离钻杆进行钻孔操作，并在一次操作中移除挖掘的材料。 该单元可以升高到铲斗部分与钻头分离的表面，以排空挖掘的材料。
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公开(公告)号：US07337574B2
公开(公告)日：2008-03-04
申请号：US10938683
申请日：2004-09-09
摘要： A firearm frame which is adapted to be disposed in operative relationship as a component part of a firearm, the firearm having disposed in operative relationships each with one or more of the others, a barrel, a receiver, and at least one firing mechanism; wherein the barrel and receiver form operative parts of a movable assembly and the at least one firing mechanism is disposed in a substantially stationary operative relationship therewith; the firearm frame including at least one elongated support structure discrete from the barrel and receiver, the elongated support structure being adapted to directly support the movable assembly in an operative movable relationship therewith; whereby at least one of the barrel and receiver is in direct contact with and movable on the elongated support structure; and, a firing mechanism support structure connected to the at least one elongated support structure, the firing mechanism support structure being adapted to have the firing mechanism connected thereto; the firearm frame also directly supporting the movable assembly and the firing mechanism in corresponding movable and stationary operative relationships each with the other.
摘要翻译： 一种适于以操作关系设置为枪械的组成部分的枪支框架，所述枪械具有各自具有一个或多个操作关系的操作关系，枪管，接收器和至少一个击发机构; 其中所述枪管和接收器形成可移动组件的操作部分，并且所述至少一个击发机构设置成与其基本上静止的操作关系; 所述枪支框架包括从所述枪管和接收器离散的至少一个细长支撑结构，所述细长支撑结构适于以可操作的可移动关系直接支撑所述可移动组件; 由此筒和接收器中的至少一个与细长支撑结构直接接触并可移动; 以及与所述至少一个细长支撑结构连接的击发机构支撑结构，所述击发机构支撑结构适于具有与其连接的所述击发机构; 枪支架还可以相应地可移动和固定的操作关系直接支撑可移动组件和击发机构。
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公开(公告)号：US5468458A
公开(公告)日：1995-11-21
申请号：US41800
申请日：1993-04-01
申请人： Richard W. Watson
发明人： Richard W. Watson
IPC分类号： B01D53/50 , B01D53/34 , B01D53/52 , B01D53/75 , B01D53/77 , C01B17/04 , C10L3/10 , B01D53/86 , C01B17/16 , C01B17/48
CPC分类号： B01D53/52 , B01D53/75 , C01B17/0404
摘要： A part of the hydrogen sulphide content of a feed gas stream comprising hydrogen sulphide is burned by a burner that fires into a furnace. The combustion is supported by a stream of oxygen or oxygen-enriched air. Resulting sulphur dioxide reacts with residual hydrogen sulphide in the furnace to form sulphur vapor. Sulphur is condensed out of the resulting gas mixture in a sulphur condenser. At least part of the sulphur-free gas mixture flows through a reactor in which its sulphur dioxide content is reduced to hydrogen sulphide. Water vapor is removed from the resulting gas stream in a water condenser. At least part of the gas stream now essentially free of water vapor is recycled to the furnace. A purge stream is taken either from immediately downstream of the sulphur condenser or from intermediate the water condenser and the furnace, or from the furnace and, if desired, subjected to further treatment to remove sulphur-containing gases therefrom.
摘要翻译： 包含硫化氢的进料气流的一部分硫化氢含量通过燃烧器进入炉中燃烧。 燃烧由氧气或富氧空气流支撑。 所产生的二氧化硫与炉中的残留硫化氢反应形成硫蒸汽。 硫在硫冷凝器中从所得气体混合物中冷凝出来。 至少部分无硫气体混合物流过其二氧化硫含量被还原成硫化氢的反应器。 在水冷凝器中从所得气流中除去水蒸汽。 现在基本上没有水蒸气的气流的至少一部分被再循环到炉中。 吹扫流从硫冷凝器的下游或从水冷凝器和炉的中间或从炉中取出，并且如果需要进行进一步处理以从其中除去含硫气体。
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公开(公告)号：USD824436S1
公开(公告)日：2018-07-31
申请号：US29577362
申请日：2016-09-12
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公开(公告)号：US20160251899A1
公开(公告)日：2016-09-01
申请号：US15095085
申请日：2016-04-10
CPC分类号： E21B27/00 , E21B7/003 , E21B10/325
摘要： There is provided an Axially separating drill bucket for drilling large holes in the earth by which a drilling operator can perform the drilling operation with the Axially Separating Drill Bucket, incorporating a spring loaded latching mechanism and a hydraulic cylinder within a drill head casing, and remove the excavated material in one operation. The unit can be raised to the surface where the bucket portion is moved up or down from the drill head to empty the excavated material. A spring loaded latching mechanism is disclosed having a pushrod which activates the latch by making contact with an external force. A centrally located hydraulic cylinder power assists the drill head to be raised and lowered to remove the material collected within the drill bucket.
摘要翻译： 提供了一种用于在地球上钻出大孔的轴向分离钻头，钻孔操作者可以使用轴向分离钻杆进行钻孔操作，其中包括弹簧加载的闩锁机构和在钻头壳体内的液压缸，并且移除 挖掘的材料在一个操作。 该单元可以升高到铲斗部分从钻头上下移动的表面，以排空挖掘的材料。 公开了一种弹簧加载的闭锁机构，其具有推杆，其通过与外力接触来启动闩锁。 中心位置的液压缸功率有助于钻头升高和降低以移除在钻桶中收集的材料。
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公开(公告)号：US09309736B2
公开(公告)日：2016-04-12
申请号：US13845556
申请日：2013-03-18
申请人： Richard W. Watson
发明人： Richard W. Watson
CPC分类号： E21B27/00 , E21B7/003 , E21B10/325
摘要： The current application provides an Axially Separating Drill Bucket for drilling large holes in the earth by which a drilling operator can perform the drilling operation with the Axially Separating Drill Bucket and remove the excavated material in one operation. The unit can be raised to the surface where the bucket portion is separated from the drill head to empty the excavated material.
摘要翻译： 目前的应用提供了一种用于在地球上钻出大孔的轴向分离钻杆，钻孔操作者可以通过轴向分离钻杆进行钻孔操作，并在一次操作中移除挖掘的材料。 该单元可以升高到铲斗部分与钻头分离的表面，以排空挖掘的材料。
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