一种磷石膏煅烧装置
    1.
    发明申请

    公开(公告)号:WO2019100200A1

    公开(公告)日:2019-05-31

    申请号:PCT/CN2017/112084

    申请日:2017-11-21

    Inventor: 赵嘉珩 赵建纲

    CPC classification number: C04B11/036

    Abstract: 一种磷石膏煅烧装置,属于磷石膏加工领域,包括预热滚筒,煅烧滚筒,还原滚筒;预热滚筒安装在煅烧滚筒的前端;煅烧滚筒安装在预热滚筒的后端;该煅烧滚筒有两个,其进料部分分别与两个预热滚筒的出料部分相衔接,其出料部分与还原滚筒的进料装置连接;还原滚筒安装在煅烧滚筒的后端,该还原滚筒有一个,其进料装置分别与两个煅烧滚筒的出料装置连接,具有节省投资,提高工作效率,方便维修和维护,节省能源的特点。

    PROCESS FOR CALCINING MOIST GYPSUM
    3.
    发明申请
    PROCESS FOR CALCINING MOIST GYPSUM 审中-公开
    计算保健食品的过程

    公开(公告)号:WO1992016468A1

    公开(公告)日:1992-10-01

    申请号:PCT/EP1992000607

    申请日:1992-03-19

    CPC classification number: B01J6/001 B01J8/26 C04B11/0283

    Abstract: Both drying and the extraction of water of crystallisation can be performed in a fluidised bed apparatus (A, B) without any danger of overheating. This is attained via complete, uniform fluidisation by indirectly heated hot gas. A substantial quantity of energy is transferred to the fluidised layer via heat exchanger systems (4 and 12). These are heated by heat-conveying media. The structural layout of the fluidised bed apparatuses (A, B), the base plan of which is rectangular, ensures a narrow dwell period spectrum and an excellent temperature/moisture curve without the assistance of various fluidised chambers. Owing to the relatively cold introduction area and gentle heating thus produced, the properties of the crystals are favourably affected. The product is distinguished by very uniform quality. No undesirable modifications to the gypsum occur when moist gypsum is calcined.

    一种无水石膏制备系统
    4.
    发明申请

    公开(公告)号:WO2021068499A1

    公开(公告)日:2021-04-15

    申请号:PCT/CN2020/088942

    申请日:2020-05-07

    Abstract: 一种无水石膏制备系统,包括第一热风炉(1)、烘干破碎机(2)、选粉机(3)、收尘器(4)、风机(5)、烟囱(6)、预热脱水模块(7)、第二热风炉(8)、冷却装置(9)、第一风阀(10)、第二风阀(11)、第一冷风阀(12)、烟气净化装置(13)、第三风阀(14)和第二冷风阀(15);第一热风炉(1)、烘干破碎机(2)、选粉机(3)、收尘器(4)、风机(5)和烟囱(6)在气路上依次相连;烘干破碎机(2)、选粉机(3)、收尘器(4)、预热脱水模块(7)和冷却装置(9)在料路上依次相连;采用悬浮煅烧装置来实现逐级换热,从而将磷石膏中的水分彻底除去,以制得高质量的Ⅱ型无水石膏,且具备温控功能,能在断料或其他异常工况时防止热风烧坏设备,消除了安全隐患。

    METHOD AND ARRANGEMENT FOR PRODUCING alpha -CALCIUM SULPHATE HEMIHYDRATE USING THE GYPSUM SUSPENSION PRODUCED DURING THE WET FLUE GAS DESULPHURIZATION OF A FOSSIL-FIRED THERMAL POWER STATION
    5.
    发明申请
    METHOD AND ARRANGEMENT FOR PRODUCING alpha -CALCIUM SULPHATE HEMIHYDRATE USING THE GYPSUM SUSPENSION PRODUCED DURING THE WET FLUE GAS DESULPHURIZATION OF A FOSSIL-FIRED THERMAL POWER STATION 审中-公开
    METHOD AND SYSTEM FOR PRODUCINGα硫酸钙半水合物使用湿烟道气脱硫(FGD)甲燃烧化石燃料的火力发电站GIPS悬架

    公开(公告)号:WO00048958A1

    公开(公告)日:2000-08-24

    申请号:PCT/EP2000/001308

    申请日:2000-02-18

    CPC classification number: C04B11/02 C04B11/032 C04B11/036 C04B11/26

    Abstract: The invention relates to a method and an arrangement for producing alpha -calcium sulphate hemihydrate using the gypsum suspension produced during the wet flue gas desulphurization process of a fossil-fired thermal power station. The aim of the invention is to carry out a continuous process of converting and further processing gypsum to produce highly pure end products which is directly linked to the flue gas desulphurization process of a coal-fired power station. To this end, a partial flow is removed from the gypsum suspension taken from the flue gas desulphurization process (1) before dehydration and the solid parts are separated into dihydrate and unwanted constituents by one or more hydrocyclones (5). The thus purified suspension is heated, then mixed with a dispersion of crystallizers and nucleators (11), guided via the outer pipe (13) of a longitudinal, upright double-pipe heat exchanger (14) and after being heated again, is released to an optionally coil-shaped reactor (19) which is located underneath which has mixing screws, using the hydrostatic pressure. The suspension is then delivered to the inner pipe (21) of the double-pipe heat exchanger (14). The resulting alpha -calcium sulphate hemihydrate suspension in this inner pipe (21) is caused to rise to the exit level (22) and then dehydrated, the resulting powder then being dried and screened or ground. The invention also relates to an arrangement for producing alpha -calcium sulphate-hemihydrate using the gypsum suspension produced in the wet flue gas desulphurization plant of a fossil-fired thermal power station.

    Abstract translation: 本发明是基于上述目的,与向FGD处理的煤电厂进行连续操作的石膏的转化率和进一步处理,以高纯度的终产物直接连接。 这在根据来自从之前其排水的一部分流截取的FGD(1)采取的石膏悬浮液中选择的本发明通过一个或多个水力旋流器(5)执行在二水合物和不希望的组分的固体的分离来实现,由此纯化悬浮液加热,然后用 结晶器(11)的分散体和成核剂混合,经过一个细长的外筒(13),立式双管热交换器(14)和另一加热下方可能蛇形后,混合通过利用流体静压力具有反应器(19)的螺钉 被施加并随后将双管式热交换器的内管(21)(14)进料,如今已得到的阿尔法半水合硫酸钙的悬浮液在该内管(21)提升到输出平面脱水(22),随后将得到的粉末 通用电器 干燥和过筛或研磨。 本发明还包括一种用于在燃烧化石燃料的热电厂产生的石膏悬浮液的湿法烟道气脱硫(FGD)使用生产α硫酸钙半水合物的布置。

    石膏処理装置及び石膏処理方法
    6.
    发明申请
    石膏処理装置及び石膏処理方法 审中-公开
    石膏加工装置和石膏加工方法

    公开(公告)号:WO2018030077A1

    公开(公告)日:2018-02-15

    申请号:PCT/JP2017/025828

    申请日:2017-07-14

    Abstract: 【課題】流動層方式の石膏処理装置及び石膏処理方法において、石膏粉体の流動性を活性化し又は向上し、石膏粉体の改質又は均質化等の石膏処理の作用を促進する。 【解決手段】石膏処理装置(1)は、反応器(2)と、調整空気供給口(6)と、調整空気流(Af)を反応域(α)に上向きに流入せしめる水平隔壁(5)と、反応域の周方向に角度間隔を隔てて配列された複数の固定羽根(10)とを有する。焼石膏(Gb)の流動層(M)が反応器内に形成される。固定羽根は、反応域に上向きに流入した調整空気流(Ag)を反応域の径方向外方且つ周方向に偏向する。焼石膏(Gb)は、調整空気流により反応器内で跳躍流動又は跳躍移動する。

    Abstract translation:

    流化床系统的石膏处理装置和石膏处理方法,激活或增加的石膏粉末的流动性,石膏处理这样的修改或均化的石膏粉 方便的操作。 一种石膏处理装置(1),所述反应器(2),调节空气供应开口(6),调节空气流反应区(AF)(阿尔法)允许流入水平隔板向上(5) 并且在反应区的圆周方向上以角度间隔布置多个静叶片(10)。 在反应器中形成煅烧石膏(Gb)的流化床(M)。 固定叶片偏转调节的空气流进入向上反应区(Ag)的径向向外和反应区的圆周方向上。 由于经调节的气流,煅烧石膏(Gb)在反应器中跳跃或跳跃。

    METHOD AND PLANT FOR PRODUCING PLASTER FROM GYPSUM BY CALCINING IN DIRECT CONTACT WITH HOT CARRIER GASES
    8.
    发明申请
    METHOD AND PLANT FOR PRODUCING PLASTER FROM GYPSUM BY CALCINING IN DIRECT CONTACT WITH HOT CARRIER GASES 审中-公开
    通过与热载体气体直接接触来计算从棉铃生产塑料的方法和设备

    公开(公告)号:WO1995017354A1

    公开(公告)日:1995-06-29

    申请号:PCT/FR1994001451

    申请日:1994-12-12

    Inventor: MACE HOLDING

    CPC classification number: C04B11/036

    Abstract: Method of producing hemihydrate plaster by calcining natural or synthetic gypsum in at least one cyclone zone, wherein the gypsum and the hot gases are fed into the top of the first cyclone zone and calcining is carried out in a parallel flow of hot gases and particles of the materials to be dehydrated by circulation in a downward direction along a cyclonic path in each cyclone zone, followed by circulation in an upward direction in the central area of each cyclone zone. A plant for carrying out the method is also disclosed.

    Abstract translation: 通过在至少一个旋风区中煅烧天然或合成石膏来生产半水灰石的方法,其中将石膏和热气体进料到第一旋风分离器区域的顶部并进行煅烧,以平行的热气体和 通过沿着每个旋风区域中的旋风路径沿向下的方向循环脱水的材料,随后在每个旋风区域的中心区域沿向上的方向循环。 还公开了一种用于实施该方法的设备。

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