• 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:
    THE DEVICE FOR OBTAINING SALT OF STAINED METAL MINERAL ACID W OF THE APPLICATION METAL AND THE MINERAL ACID; located at the other end of the furnace, devices for the removal of an impermeable gas - and mixing devices, - consisting of a pair installed in the furnace in the longitudinal direction, lie with opposite sides of shafts fitted with mixing elements arranged on them, each of which, mounted on one shaft, is placed between two adjacent mixing elements of another shaft, characterized in that, in order to increase its reliability by improving the acid resistance, heat resistance and wear resistance of mixing devices The mixing element is made in the form of a metal lever mounted coaxially in it with a cylindrical ceramic casing, the upper end of which is You remove the upper end of the lever, and an inset between them of acid-resistant thermosetting cast mass, while the mixing elements are arranged in a spiral along the axes of the shafts, which are hollow and have a coating containing two layers, the first of which is made of acid-resistant thermoreactive cast mass and the second is from the hardened reaction | Noah mass. eo 2 The device according to claim 1, about tl and so on - the fact that the metal hooks are attached to the shafts by means of metal holders. Prioritize in para. and m: 09/30/80 to p.1; 03.07.81 on item 2.
    公开号:SU1178314A3
    申请号:SU813365882
    申请日:1981-09-29
    公开日:1985-09-07
    发明作者:Ивасита Хидемаро；Миено Фумиаки；Киура Есинори；Хаяси Кенити
    申请人:Асахи Касеи Когио Кабусики Кайся (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to apparatus for carrying out various chemical reactions and can be used to obtain an alkali metal salt and a mineral acid. Closest to the invention to the technical essence and the achieved effect is a device containing a horizontal muffle furnace with an upper muffle and a heating tool placed on it located at one end of the furnace of the device for feeding the source material, devices for unloading reaction products located at the other end furnaces, devices dp of exhaust gas ejection and permixing devices, consisting of a pair of rotating in opposite directions installed in the furnace in the longitudinal direction s, is endowed conjugated placed on them pereme1iivayuschimi elements kazhdyyiz are mounted on the same shaft, is arranged between two adjacent re shayuschimi mesh elements of the other shaft tlj. However, in a known device, satisfactory agitation of stirring cannot be achieved if the reaction system is in a too liquid state. Thus, the prior art device tends to cause only incomplete mixing, if the reaction system is in a glistening liquid state, and it can only be used when the reaction system is in a substantially anhydrous state. The known device can be used for the continuous production of an alkali metal salt and an inorganic acid, for example potassium sulfate and hydrogen chloride, only when the following two working conditions are satisfied, it is necessary that the mixture in the muffle furnace can always support the soup; Naturally dry during the reaction. Sulfuric acid must be used in an amount less than stoichiometrically equivalent to the amount of Kalmo chloride, and the potassium sulphate formed, which is substantially dry, must be kept in large quantities in a muffle furnace and then the potassium chloride and sulfuric acid after the homogeneous stirring should be added. little by little, in potassium sulfate, then immediately react with each other. However, the reaction of potassium chloride with sulfuric acid to produce potassium sulfate and hydrogen chloride under these operating conditions has the disadvantage that, when the reaction proceeds to some extent, when only small amounts of potassium chloride and sulfuric acid remain, physical contact is difficult between the remaining potassium chloride and sulfuric acid due to the large amount of potassium sulphate surrounding them, obtained during the reaction, i.e. the reaction is interrupted and, in addition to a decrease in intensity, the quality of the product obtained is impaired, the productivity of the furnace decreases with a high energy consumption. In addition, the known device is so poorly resistant to acids, heat and wear that it cannot continuously and permanently operate at very high levels of acidity and under conditions of high temperatures that are necessary in the process of potassium sulfate and hydrogen chloride by the reaction of chloride; potassium and sulfuric acid. For this reason, it cannot be used in practice for long periods of time. The purpose of the invention is to increase the reliability of the device by increasing the acid resistance, heat resistance and wear resistance of mixing devices. The goal is achieved by the fact that in a device for producing an alkali metal salt of a mineral acid from an alkali metal chloride and a mineral acid, containing a horizontal muffle furnace with a top muffle and heating means placed on it, devices for feeding the source material, located at one end of the furnace, for discharging the reaction products located at the other end of the furnace, devices for withdrawing YOU of the shared gas oven and mixing devices consisting of a pair of furnaces installed in the furnace the longitudinal direction of the rotating in opposite sides of the shafts, equipped with mixing elements placed on them, each of which, mounted on one shaft, is placed between two adjacent elements of another shaft, the mixing element is designed as a metal lever, in it there is a cylindrical ceramic casing, the upper end of which is located above the upper end of the lever and an insert of acid-resistant thermoactive cast mass placed between them, while The bolting elements are located along the axes of the shafts, which are hollowed out and have a coating containing two layers, the first of which is made of acid-resistant thermosetting cast mass, and the second is of the hardened reaction mass. Metal levers can be attached to the shafts by means of metal clamps or directly, for example, by welding. Fig. 1 shows a device for producing an alkali metal salt and an inorganic acid; the section in Fig. 2 is a section A-A in Fig. 1; in fig. 3 - mixing tools used in the device, top view with a partial cut and with a partial section; 4 g. - part of the shaft with a partial cut-out showing the method of fastening the mixing of the elements to the shaft. The device contains a horizontal muffle furnace 1, mixing devices 2 installed in the longitudinal direction of the muffle furnace 1 parallel to each other. Muffle furnace 1 is equipped at one bond end with a device 3 for feeding the source material: and at the other end of it are devices 4 for unloading products reaction, a device in 5 for removal of evolved gas, intercepting devices 2 hundred hold a pair of rotating in the opposite direction of the shafts 6 and a lot of intersecting elements fixedly attached to each These shafts ;, the upper muffle 8, which forms, respectively, the upper wall of the muffle furnace 1, is made of a material consisting mainly of silicon carbide, and has heating means 9 on it, for example, a combustion chamber 10, including a dpt nozzle diesel and exhaust hole 11 for flue gases. The device stands on the base 12. The cross-sectional shape of the muffle furnace 1 is not limited to any particular form, here it is necessary to use such a form that during the operation of the device will not cause the formation of a dead heating zone, in which the effect of heat on the reaction mixture is insufficient and in which unreacted pieces of the reaction materials can be harmful, the inner part of the muffle furnace 1 is lined with a material having a low porosity such as acid and refractory bricks In order for the muffle furnace 1 to withstand high acidity and high temperature, which are encountered in the reaction for the preparation of an alkali metal salt and an inorganic acid such as potassium sulphate. Shafts 6 are made hollow, which makes it possible to pass a cooler through them to cool and solidify the reaction mixture contained in a muffle furnace 1, which upon contact with shafts 6 forms an additional acidic and heat-resistant lining layer for the rolls. The shape of the perimeter elements 7 is not limited to a specific form. A stalked form can be used (any of the cross-sectional shapes can be taken: round, square, triangular and polygonal), the shape of a flat plate, a shape that is twisted, etc. However, stalk-shaped mixing elements are most preferable from the point of view of mechanical strength, resistance to acids and heat, ease of replacement in the event of wear of displacement elements, etc. Moving the elements 7 mounted on the shafts 6 so that each of them, mounted on one shaft, is placed between two adjacent mixing elements of the other shaft while the mixing elements of each shaft are arranged spirally with the axes of the shafts. Each stirring element 7 includes a metal lever 13, a cylindrical ceramic casing 14 mounted outside, the upper end of which is located above the upper end of the lever and an insert of acid-resistant thermosetting molten mass placed between them 15. The metal lever can be attached to the shaft 6 directly (for example, by welding or connected to it (or hollow cylindrical metal short holder 16, which is complete with it as a whole, worn when assembled on the shaft 6. The shafts 6 are provided with 17, containing two layers, the first layer 18 is made of acid-resistant thermosetting molten mass, and the second layer 19 is made of; hardened reaction mass.
    Both the first and second layers of the coating are separately sufficient to protect the rolls, however, the joint presence of two layers is necessary because in the case of cracks and / or delaminated parts in the first layer 18, the second layer 19 (still in the form of a liquid reaction mixture) serves to restore the first layer of 1.8 by sticking and hardening in mortars and (Kli) in delaminated areas, whereby it is possible to extend: the service life of the shaft 6. In this connection, it should be noted that immediately after the formation the second layer 19 has such high heat insulator The properties that heat loss caused by the passage of a cooler through the shaft channel 6 are insignificant.
    The device works as follows.
    The heated materials are fed to the muffle furnace 1, where they are vigorously stirred by mixing
    elements 7, located on the rotating shafts 6. At the same time, the mixing elements push the resulting suspension to the devices for the unloading of the reaction products 4. The gases released during the reaction are removed through the device 5.
    The proposed device provides high acid resistance, heat resistance and wear resistance of the muffle furnace and mixing means, providing the possibility of a significant reduction in operating
    expenses; 3 times increase in furnace productivity, which allows to significantly reduce fuel consumption. Due to the large mixing capacity
    means in the part of the furnace corresponding to the reaction zone, and because of the displacement capacity of the mixing means, which prevent the retention of the starting materials in the reaction zone where they are fed, the starting materials can be directly fed into the muffle furnace without first mixing, which leads to the
    the gas discharged from the combustion chamber can be used to preheat the raw materials before they are fed into the muffle furnace, as a result of which more
    high heat utilization efficiency. As a result of the large ability of the stirring agents to cause the reaction mixture to mix in the muffle furnace, the amount of the reaction mixture held in the muffle furnace is reduced, therefore, the device can continuously obtain an alkali metal salt and inorganic acid such as sulfate
    potassium, with less power consumption.
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    权利要求:
    Claims (2)
    [1]
    DEVICE FOR PRODUCING ALKALINE METAL ALKALINE METAL SALT FROM ALKALI METAL CHLORIDE AND MINERAL ACID, containing a horizontal muffle furnace with an upper muffle and heating means placed on it, devices for supplying starting material located at one end of the furnace, devices for unloading products from the other end of the furnace, devices for evacuating the evolving gas and mixing devices, consisting of a pair of longitudinally mounted rotary ovens installed in the furnace opposite sides of shafts provided with mixing elements placed thereon, each of which is fixed on one shaft and is placed between two adjacent mixing elements of the other shaft, characterized in that, in order to increase its reliability by increasing the acid resistance, heat resistance and wear resistance of the mixing devices , the mixing element is made in the form of a metal lever mounted coaxially in it of a cylindrical ceramic casing, the upper end of which is located above the upper the end face of the lever and the insert between them made of an acid-resistant thermoset cast mass, while the mixing elements are arranged in a spiral along the axes of the shafts, which are hollow and have a coating containing two layers, the first of which is made of an acid-resistant thermoset cast mass, and the second - from the hardened reaction mass.
    [2]
    2 "Device" according to claim 1, with t l and the fact that the metal levers are attached to the shafts by means of metal holders.
    Priority on points: 30.09.80 according to claim 1; 07/03/81 according to claim 2.
    this / 11 “w
    类似技术:
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    同族专利:
    公开号 | 公开日
    US4427637A|1984-01-24|
    DE3138923C2|1985-09-26|
    NO813312L|1982-03-31|
    DE3138923A1|1982-04-01|
    FR2491057B1|1984-12-14|
    CA1177222A|1984-11-06|
    FR2491057A1|1982-04-02|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2572981C2|2010-05-18|2016-01-20|Энвайролли Инк.|Reactor for heat treatment of mixes, fabrication of reactor, its application and application of produced products|US1486358A|1910-02-19|1924-03-11|Skinner Lewis Bailey|Method of and apparatus for conducting furnacing operations|
    US1165815A|1914-06-01|1915-12-28|Karl Thelen|Mechanical sulfate-furnace.|
    US1145898A|1914-06-26|1915-07-13|Henry Howard|Process of making hydrochloric acid.|
    FR517816A|1918-01-24|1921-05-12|Salzwerk Heilbronn|Glauber salt manufacturing process|
    US1375643A|1920-02-19|1921-04-19|Skinner Lewis Bailey|Feeding apparatus|
    US1498286A|1921-03-29|1924-06-17|Warren J Marsh|Feed-mixing machine|
    US1697390A|1926-05-14|1929-01-01|Herman B Kipper|Process of speeding chemical reactions|
    DE551929C|1928-03-28|1932-06-07|Zahn & Co G M B H|Introduction of sulfuric acid into mechanical sulfatoefs|
    US1871416A|1931-01-27|1932-08-09|Broadfield Mack Dean|Method of producing superphosphate|
    US2082809A|1936-06-18|1937-06-08|Robert E Pennell|Production of potassium sulphate fertilizer material|
    GB478217A|1936-07-21|1938-01-14|Ig Farbenindustrie Ag|Process for the manufacture of hydrochloric acid and sodium sulphate|
    US2706144A|1950-02-02|1955-04-12|Curtis W Cannon|Improved hargreaves method for making sulphate salts and hci|
    DE1255098B|1962-04-17|1967-11-30|Inst Chemii Ogolnej|Device for the thermal isomerization or disproportionation of alkali salts of benzene carboxylic acids|
    JPS5021992B1|1968-02-17|1975-07-26|
    US3684458A|1970-01-08|1972-08-15|Firestone Tire & Rubber Co|Propulsion and processing apparatus for flowable materials|
    US4191736A|1975-11-19|1980-03-04|E. I. Du Pont De Nemours And Company|Process for reacting liquids with solids|
    DE2950404C2|1978-12-25|1984-05-30|Asahi Kasei Kogyo K.K., Osaka|Process for the production of potassium sulfate|
    JPS6256085B2|1979-07-19|1987-11-24|Chisso Corp|
    JPS6256086B2|1979-07-19|1987-11-24|Chisso Corp|US5401833A|1993-02-01|1995-03-28|United States Leather Holdings, Inc.|Method and apparatus for treating chrome leather waste|
    US6337058B1|1996-09-16|2002-01-08|E&C Williams Inc.|Process for producing calcium sulfide|
    CA2783608A1|2012-07-23|2014-01-23|Lucie Wheeler|Environmental process to transform contaminated or uncontaminated feed materials into useful products, uses of the process, products thereby obtained and uses thereof, manufacturing of the corresponding plant|
    CA2899362C|2013-02-06|2017-10-17|Envirollea Inc.|Thermal process to transform contaminated or uncontaminated feed materials into useful oily products|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP55135305A|JPS5767022A|1980-09-30|1980-09-30|Manufacturing apparatus for alkali metallic salt of minearl acid|
    JP10317381A|JPS589814A|1981-07-03|1981-07-03|Production of potassium sulfate|
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