• 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:
    Solutions or suspensions of biomass and albumin are dried to produce granules for food or fodder in a fluidised bed dryer of specifid shape which is preceded by a metering pump and followed by a wet dust extractor. Hot air is introduced in the fluidised bed in a primary and a secondary stream. This produces cool and free-running granules, free from dust, without detrimental effects due to heat. The capital costs for equipment and the expenses for power consumption are low.
    公开号:SU1262229A1
    申请号:SU797770900
    申请日:1979-10-31
    公开日:1986-10-07
    发明作者:Хорст Бергман；Йюрген Грюнцель；Лотар МЕРЛЬ；Йоахим Заксе；Ханс-Йоахим Кюнне；Манфред Миттельштрас；Рольф Эльспас
    申请人:Феб Швермашиненбаукомбинат "Эрнст Тэлман" (Инопредприятие)；
    IPC主号:
    专利说明:

    2. Installation according to claim 1, characterized in that the dryer sections have different diameters, the ratio of the gas distribution section to the diameter of the middle section being 1.75, and the ratio of the diameter of the middle section and the diameter of the branch pipe of the granulate outlet is 2: 15, the end of the pipeline with the injection nozzle for supplying the suspension is located above the lower edge of the gas distribution grid, and the height between the upper edge of the gas distribution grid and the cylindrical end of the middle section is 800 mm, with the output end of the middle section
    the section has the shape of a truncated cone, the transition goes to the upper section, and the ratio of the diameter of the upper section to the diameter of the middle section is more than 1.5, the angle of inclination between the gas distribution grid and the horizontal plane is 1/10 Hi, and the diameter of the pipeline of the injection nozzle for supplying the suspension is selected from dependences 6, mm, where Hi, mm is the distance between the lower edge of the gas distribution grid and the end of the pipeline with an injection nozzle for feeding the suspension; DI is the diameter of the nozzle of the granulate tapping unit.
    The invention relates to a plant for the simultaneous drying and granulation of biomass obtained by yeast and proteins intended for further use in the feed and food industry. To characterize known installations, it is necessary to proceed from the problems associated with the simultaneous drying and granulation of heat-sensitive solutions and suspensions. Installations are known in which drying of highly sensitive solutions or suppositories is carried out, however, without granulation, or with granulation in a subsequent unit, or with granulation and drying, associated with high costs and degradation of the product. A known apparatus for drying and granulating biomass obtained by yeast and proteins, including a receiver, a fluidized bed dryer with a gas distribution, middle and upper sections, with a conical gas distribution grid installed in it, with holes increasing to the periphery, an injection nozzle for feeding the suspension , with a centrally located granulate withdrawal unit and a sluice valve, a fluidized bed apparatus with pressure connection for supplying the granulate and elements for throttling the air flow, revatel air, heat exchanger, fan n nasos (V. Schnell "Troknungstehnik, VDJ -Z109, 1967, № 29 - Oct. Nov. / 11). Fluid bed torus pellets for spraying the product, intended for drying and granulating powder and instant products, can be used for simultaneous drying and granulation; however, they cannot be used for treating solutions and suspensions, since it is impossible to exclude local overheating, drive undesirable deterioration in product quality. Due to the need for short drying, a large amount of air and heat is required. In particular, the heat consumption is high, as a result of which both the cost of the complete unit and operating costs increase. The purpose of the invention is to realize the drying and granulation of biomass and proteins, eliminating the deterioration of the quality of the product, the effect of heat treatment at low specific energy consumption and small hardware and technical costs while ensuring high storage resistance. FIG. 1 shows a block diagram of a plant for drying and gr. Ch. Number of material; in fig. 2 - fluid bed dryer. The plant for drying and granulation of biomass consists of receiver 1, pump pump 2, dryer 3 with a -1PN layer (with gas distribution, a separate middle and upper sections), a fluidized bed apparatus 4, two fans 5 and 6, air preheater 7 connected by a fan 6 to a heat exchanger 8, a wet dust collector 9, throttling elements 10 and 11, a pump 12, a fan 13, a granule outlet unit 14, a pipe 15 for secondary air flow of a gate valve 6, a regulator 17, conical gas distribution system 18, devices 19 for supplying granulate to dryer 3, injection nozzle 20, fluid valve 21 and conduit 22 for feeding suspension to nozzles 20. From the receiver, designed as an agitator tank, homogeneous protein suspensions are sprayed by a concentration of solid weight by weight the expiration of the dwell time of the dosing pump
    2, working as a pressure vessel, through the injection nozzle 20, located in the fluidized bed dryer 3, onto the surface of fluidized state granules of solid matter, fed through a device for feeding the granulate 19 into the fluidized bed 3 . After reaching a diameter of 12 mm, the granules of solid matter are fed to the node 14 of the removal of granules with a sorting effect. Towards the granules of solid matter, the air is supplied in counterflow to the node 14 of the removal of granules with a sorting effect. The granules from the solid are then passed through a sluice gate 16 into a fluidized-bed apparatus 4, where they are cooled on two bottoms for cooling and sunduring from 80 to 35 ° C and, as a final product, leave the plant and granulation.
    The cross flow, directed towards the granulate, sucks air through the apparatus and with the fluidized bed, which through the regulator 17 and the fan 5 is supplied to the main air flow before the heat exchanger 8, heated by steam. Through the air preheater 7, air is drawn in from the environment, warmed and compensated by the fan 6, also operating as a pressure vessel. The air from the fan 6 and the fluidized bed apparatus 4 is directed to a heat exchanger 8 heated by steam and heated to a temperature of about 150 ° C. After the heat exchanger 8, the main air flow is divided into partial flows by regulating the throttling elements 10 and 11, the secondary air flow through the pipe 15 enters the central granule outlet 14, and the main air flow passes through the gas distribution section, the conical gas distribution grid 18 with variable side of the periphery with the size of the holes in the fluidized bed. The main air flow at the head of the apparatus exits through the air nozzle from the fluidized bed dryer 3 and through the air wire
    directed to the fan 13, compressed and fed to the wet dust collector 9. In the latter, the entrained dust particles are separated from the air, for which water directed in the cross flow is used. The outgoing water through the pump 12 is directed to the air preheater 7 and is cooled. Before re-entering the cooled circulating water into the wet dust collector 9, part of the stream is discharged as waste water. A further part of the stream is supplied from the wet dust collector 9 to the receiver 1, while the remainder in the form of waste water leaves the plant. The fluidized bed dryer 3 (Fig. 2) is made with regard to the functionality in accordance with the system for drying granules, the dryer itself consists of the lower gas distribution section with a diameter of D4, the conical part connected to the middle section with a diameter of D2, and the ratio of the diameters of D4 to D2 is preferably 1.75. In the middle section with a diameter Da, there is a known conical gas distribution grid 18. With holes increasing towards the periphery, having in the center a central node 14 for withdrawal of granules with diameter Da, and the ratio of the diameter Da to the diameter of the branch pipe of the branch of the drain DI is 2:15 6. In the central unit 14 for discharging the granules there is a pipeline 22 for supplying the suspension, the outer diameter of which is chosen so that (mm) and the pipeline 22 for supplying the suspension at least Hz 500 mm high enters the node 14 for discharging gran ul and at the height Hi ends with the injection nozzle 20 over the gas distribution grid 18, and the angle a on the gas distribution grid 18 is always D 1 / 10H | (mm), while the height On between the upper end of the conical gas distribution grid 18 and the beginning of the upper middle section, having the shape of a truncated cone, is always 800 mm. A cylindrical section with a diameter Oz, with a ratio Da to D 1.5, adjoins the middle section, having the shape of a truncated cone.
    FIG. 2
    权利要求:
    Claims (2)
    [1]
    1. INSTALLATION FOR DRYING AND GRANULATION OF BIOMASS RECEIVED BY YEAST AND PROTEINS, including a receiver, a fluidized bed dryer with a gas distribution, middle and upper sections, with a conical gas distribution grid installed in it with openings increasing for the periphery, a central injection nozzle for located granulate discharge unit and airlock, apparatus with a fluidized bed with a device for supplying granulate and elements for throttling the air flow, heater air, heat exchanger, fan and pumps, characterized in that a receiver and a metering pump are installed in front of the dryer, the gas distribution section of the dryer being connected to the heat exchanger, fan and air heater through a throttling element, with a fluidized bed apparatus through a lock gate, and the upper section has a pipe connecting it via a pipeline to a fan and a wet dust collector, which is connected by piping to an air heater, a pump and a receiver.
    SU, "1262229
    [2]
    2. Installation according to π. 1, characterized in that the sections of the dryer have different diameters, while the ratio of the diameter of the gas distribution section to the diameter of the middle section is 1.75, and the ratio of the diameter of the middle section and the diameter of the nozzle of the granulate outlet assembly is 2:15, the end of the pipeline with an injection nozzle for feeding the suspension is located above the lower edge of the gas distribution grill, and the height between the upper edge of the gas distribution grill and the cylindrical end of the middle section is 800 mm, and the outlet end of the middle section has the form a sectional cone passing into the upper section, and the ratio of the diameter of the upper section to the diameter of the middle section is more than 1.5, the angle of inclination between the gas distribution grill and the horizontal plane 1/10 Hi, and the diameter of the pipe of the injection nozzle for feeding the suspension is selected from the dependence D ^ D | - 6, mm, where Hi, mm is the distance between the lower edge of the gas distribution grill and the end of the pipeline with an injection nozzle for supplying a suspension; D | - the diameter of the nozzle of the outlet granulate.
    类似技术:
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    同族专利:
    公开号 | 公开日
    DD140005A1|1980-02-06|
    AT370766B|1983-05-10|
    ATA680279A|1982-09-15|
    DE2941637C2|1989-06-01|
    DE2941637A1|1980-06-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EA027528B1|2014-07-30|2017-08-31|Открытое Акционерное Общество "Дрожжевой Комбинат"|Dried yeast production method|US2986475A|1958-11-05|1961-05-30|Smith Kline French Lab|Apparatus and method for coating discrete solids|
    FR1258497A|1959-04-30|1961-04-14|Wisconsin Alumni Res Found|Granulation process|
    FR1495427A|1966-03-02|1967-09-22|Progil|Method and apparatus for granulating fluid products|CH652940A5|1982-01-09|1985-12-13|Sandoz Ag|METHOD FOR PRODUCING NON-DUSTING GRANULES AND DEVICE THEREFOR.|
    DD215379A1|1983-05-30|1984-11-07|Thaelmann Schwermaschbau Veb|PROCESS AND DEVICE FOR PREPARING GERMES FOR SWIVEL LAYERED GRANULAR DRYING|
    DD226196A1|1984-07-25|1985-08-21|Thaelmann Schwermaschbau Veb|SWIVEL LAYER GRANULATED DRYER WITH MULTI-CHAMBER SYSTEM|
    US4698190A|1985-09-02|1987-10-06|Kabushiki Kaisha Okawaraseisakusho|Method and apparatus of controlling granulation of moisture-absorbing powder material|
    DE19734431A1|1997-08-08|1999-02-11|Glatt Process Technology Gmbh|Method and device for working up a solution or solid suspension containing thermally labile components|
    US6004576A|1997-08-11|1999-12-21|Ampc, Inc.|Granular plasma protein supplement with increased bio-efficacy|
    US6528594B1|1998-07-21|2003-03-04|Vantico Inc.|Flowable glanulates|
    DE102007039518A1|2007-08-21|2009-02-26|PERGANDE Gesellschaft für industrielle Entstaubungstechnik mbH|Sifting granulating discharge for a fluidized bed granulating device comprises a fine sifting pipe which opens into a finished product container and a coarse sifting pipe arranged above the fine sifting pipe in the granulating region|
    WO2010139331A2|2009-06-03|2010-12-09|Asj Holding Aps|A system and a method for the withdrawal of particulate solid matter from a pressurized container containing a gas, and use thereof|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DD20940978A|DD140005A1|1978-11-30|1978-11-30|ANNEX FOR THE GRANULAR DRYING OF BIOMASSES AND ELEMENTS|
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