• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Process for recovering heat from hot particulate streams for the production of steam. The method is characterized by arranging a rotating steam boiler (1) with opposite first and second ends (A, B), the rotating steam boiler being internally provided with a double-sheathed rotor (4), the inside of which tubes (5) are arranged at a distance from the inside of the rotor (6) in such a way that the hot particulate material stream can flow partly between the rotor wall and the tubes and partly between the tubes, feeding the hot particulate material stream via a first inlet (2) of the rotating steam boiler (1), feeding liquid water in at least the tubes (5) at a second inlet (2) of the rotating steam boiler (1), heating the water in the tubes obtaining steam, and discharging the particulate stream at the other end (B) of the rotating steam boiler. (Fig. 1)
    公开号:SE1551417A1
    申请号:SE1551417
    申请日:2015-11-03
    公开日:2017-05-04
    发明作者:Bojner Ulf
    申请人:Torkapparater - Termisk Processutrustning Ab；
    IPC主号:
    专利说明:

    BACKGROUND OF THE INVENTION Field of the Invention The invention relates to a process according to the preamble of claim l. Background of the Invention In the context of many industrial processes, cooling processes must be treated. high energy costs, which were associated with the creation of the hot material streams and the increasing environmental awareness, it would be desirable to recover at least a part of the generated heat in the material streams.
    A special problem with recovering heat from hot material streams arises as these consist of particulate materials.
    The invention relates to separate recovery of heat from hot particulate material streams. Examples of when hot particle-shaped material streams occur in lime and cement production, heat treatment of minerals and chemicals, recycling materials and waste as well as other incineration processes that generate hot by-products, ashes, etc. Summary of the invention The object of the invention is to provide a process of steam. This object is achieved by the method according to the marking part of claim 1.
    Various preferred embodiments are set out in the dependent claims.
    BRIEF DESCRIPTION OF THE DRAWINGS The invention is described in more detail below with reference to the accompanying drawing, in which - Fig. 1 is a schematic perspective view from the side of an enzymatically shown rotary steam boiler seen from the inlet part, - Fig. 2 is a schematic view corresponding to that of Fig. 1 seen from the outlet part, and Fig. 3 is a schematic side view of the rotating steam boiler with the tubes shown in the center of the steam boiler removed.
    Description of Preferred Embodiments Figs. 1 and 2 illustrate a rotating steam boiler 1 opposite first and second spirits A, B and having a first inlet 2, at the spirit A, for a hot particulate material stream (not shown) to be cooled, and an opposite second inlet 3 for feed of liquid in liquid form in tubes and mantle. At the other end B, the so-cooled material stream is arranged to be discharged and also the steam thus produced is represented.
    The rotating steam boiler is inclined from the spirit A to the spirit B, so that the particulate material during rotation of the steam boiler is moved by gravity and the rotation of the apparatus from the former spirit to the latter spirit.
    It can be seen from Fig. 3 that, in a preferred embodiment, the rotating steam boiler 1 is provided with a double rotor jacket with cylindrical surfaces, hereinafter referred to as rotor jacket 4. On the inside of the 10 rotor jacket 4 a plurality of tubes 5 are arranged. There is a gap between the inside 6 of the intermediate rotor jacket 4 and the tubes which lie near the inside of the mast, which enables the particulate material to flow in this space under the rotation of the sub-steam boiler. As can be seen, there is also a space between adjacent tubes which in the same way allows flow of the particulate material between the tubes.
    As shown in Fig. 2, in recovering the heat underinert or reducing atmosphere, an air lock 7 may be provided at the second end B of the rotating steam boiler in connection with the outlet of the cooled particulate material stream to reduce the oxygen content inside the rotor jacket 4, i.e. to prevent ambient air from leaking into the boiler.
    The hot material streams can consist of minerals, chemicals, recycling products etc., and in a typical example for steam generation the incoming material stream has a temperature of about 100 ° C and the outgoing material stream a temperature of about 80 ° C.
    By conveniently controlling either the amount of feed particulate matter or the water flow in the tubes or both, the type of steam produced can be regulated. That is, either steam can be produced for utilization at least one steam engine not shown or superheated steam pre-utilization in at least one steam turbine (not shown). The steam produced in this way can be used for power production and / or heat production. The steam can also be used for e.g. district heating production or as process steam.
    The method according to the invention for recovering heat from hot particulate streams of material for producing steam, is characterized by the steps of arranging a rotating steam boiler 1 with opposite first and second breaths A, B, wherein the rotating steam boiler is provided with a rotor jacket 4, the inside of which tubes 5 years arranged partly at a distance from the inside 6 of the rotor jacket 4 and partly at a distance from each other in both circumferential direction and in radial direction so that the hot particle-shaped material stream can flow partly inside the intermediate rotor jacket 4 and the tubes and partly between the tubes, feeding the hot particulate material stream via a first inlet 2 a first breath A of the rotary steam boiler 1, feeding water in liquid form into the tubes 5 and / or the rotor jacket via a second inlet 3 at a second breath B of the rotary steam boiler 1, heating the water in the rotor jacket and / or in the tubes to obtain steam, and discharging the cooled particulate stream at d the second breath B. of a rotating boiler.
    In a preferred embodiment, the surface of the inside 6 of the rotor jacket 4 relates to the surface of the tubes 5 as about 1: 4.
    权利要求:
    Claims (1)
    [1]
    A method of recovering heat from a stream of hot particulate material for the production of steam, characterized by - arranging a rotating steam boiler (1) with opposite first and second breaths (A, B), the rotary steam boiler being provided with a double rotor jacket ( 4), the inside (6) of tubes (5) are arranged spaced apart so that the hot particulate material stream can flow partly between the inside of the rotor and the tubes and partly between the tubes, - feeding the hot particulate stream of material via a first inlet (2) the first end (A) of the rotating steam boiler (1), - feeding water in liquid form into at least the end tubes (5) or the rotor jacket (4) via a second inlet (3) at the second end (B) of the rotating steam boiler ( Heating the water in at least either the tubes (5) or the rotor jacket (4) to obtain steam, and discharging the cooled particulate stream at the second end (B) of the rotating steam boiler. Method according to Claim 1, characterized in that the feed water in liquid form takes place in both the tubes (5) and in the rotor jacket (4). Method according to claim 1 or 2, characterized by further arranging an air lock (7) at the second end (B) of the rotary steam boiler in connection with an outlet for the cooled particulate material stream to reduce the oxygen content inside the rotor jacket (4). Process according to one of Claims 1 to 3, characterized in that the hot particulate material stream comprises material flow arising from the production of lime and cement, heat treatment of minerals and chemicals, recycled materials or waste and other incineration processes which generate hot by-products, ash, etc. claims 1-4, characterized in that the steam obtained is used for power and / or heat production. Process according to one of Claims 1 to 4, characterized in that the steam obtained is saturated steam or superheated steam. Method according to claim 6, characterized in that in the case of moderated steam it is used in a steam engine, and in the case of superheated steam it is used in a steam turbine. Method according to one of Claims 1 to 7, characterized in that the rotating steam boiler (1) is arranged inclined from the first end (A) of the steam boiler towards its second end (B).
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    同族专利:
    公开号 | 公开日
    SE542158C2|2020-03-03|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1551417A|SE542158C2|2015-11-03|2015-11-03|Process for recovering heat from hot particulate streams by means of a rotating steam boiler|SE1551417A| SE542158C2|2015-11-03|2015-11-03|Process for recovering heat from hot particulate streams by means of a rotating steam boiler|
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