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    Methods for processing wastes using potential heat of waste gas prior to incineration
    41.
    发明授权
    Methods for processing wastes using potential heat of waste gas prior to incineration 失效
    在焚烧之前利用废气潜热处理废物的方法

    公开(公告)号：US5347938A

    公开(公告)日：1994-09-20

    申请号：US964710

    申请日：1992-10-22

    Applicant: Hidenao Takazawa

    Inventor： Hidenao Takazawa

    IPC: C02F11/12 ,  C02F11/20 ,  F23G5/00 ,  F23G5/12

    CPC classification number: C02F11/20 ,  C02F11/12 ,  F23G5/006 ,  C02F2103/06 ,  C02F2103/18 ,  F23G2201/10 ,  F23G2201/90 ,  F23G2209/22 ,  F23G2209/261 ,  F23G2209/28 ,  F23J2217/102 ,  F23J2219/40

    Abstract: The present invention provides a method for processing wastes containing a large amount of water and a method for processing leachate from industrial wastes. Specifically, the present invention provides a method which comprises maintaining reduced pressure in the dryer equipped with a stirring means, feeding wastes containing a large amount of water to the dryer, stirring the wastes while blowing refrigerated air at -20.degree. C..+-.5.degree. C. to the dryer, and drying the frozen moisture portion of the wastes by sublimation. Air heated at 80.degree. C.+10.degree. C. can be used instead of refrigerated air to dry water of the wastes by evaporation. The present invention also provides a method for processing leachate which comprises pooling leachate industrial wastes and burned ashes, and utilizing the leachate to absorb wet-type toxic gas, thereby confining the leachate within the waste treatment plant. The present invention therefore make it possible to process wastes containing a large amount of water, which have been a problem in the incineration by the conventional methods, by using the potential heat of the waste gas from the incinerator. The present invention also provides an effective means to prevent environmental contamination because leachate is confined in the waste treatment plant.

    Abstract translation: 本发明提供一种处理含有大量水的废物的处理方法以及从工业废物处理渗滤液的方法。 具体地说，本发明提供了一种方法，该方法包括：在装有搅拌装置的干燥机中保持减压，将含有大量水的废物送入干燥器中，同时在-20℃冷却空气的同时搅拌废物。 5℃，并通过升华干燥废物的冷冻水分部分。 在80℃+ 10℃下加热的空气可以通过蒸发而代替冷冻空气对废物的干燥水。 本发明还提供了一种处理渗滤液的方法，其中包括将渗滤液工业废物和烧灰混合，利用渗滤液吸收湿式有毒气体，从而将渗滤液限制在废物处理厂内。 因此，通过使用来自焚烧炉的废气的潜热，本发明使得可以通过常规方法处理含有大量水的废物，这些废水是焚化问题。 本发明还提供了防止环境污染的有效手段，因为渗滤液被限制在废物处理设备中。

    Method for reducing comminution energy of a biomass fuel
    44.
    发明授权
    Method for reducing comminution energy of a biomass fuel 失效
    减少生物质燃料粉碎能量的方法

    公开(公告)号：US4589357A

    公开(公告)日：1986-05-20

    申请号：US768306

    申请日：1985-08-22

    Applicant: James F. L. Lincoln ,  Manfred K. Buder ,  Craig A. Brown ,  Gregory P. Golike ,  Robert M. Spurrell

    Inventor： James F. L. Lincoln ,  Manfred K. Buder ,  Craig A. Brown ,  Gregory P. Golike ,  Robert M. Spurrell

    IPC: C10L5/44 ,  F23G5/02 ,  F23K1/00 ,  F23D1/00

    CPC classification number: F23G5/02 ,  C10L5/44 ,  F23K1/00 ,  F23G2201/10 ,  F23G2201/602 ,  F23G2201/80 ,  F23G2209/261 ,  Y02E50/10 ,  Y02E50/30

    Abstract: The present invention relates to the preparation and burning of biomass-derived fuels such as wood waste or peat. Wood waste or "hog fuel" from the forest industries is of particular interest. Normally the entire stream of this material must be finely ground if it is to be successfully burned in an air suspension burner without any fossil fuel support. It has now been discovered that a bimodally sized fuel can be used. Only about 10-20% of the total heat energy is provided from a portion ground to a size less than about 100 .mu.m. This serves as an ignition component for a principal fuel which may be of much larger size. The usual hog fuel pile contains both bark and wood. Of these two materials, bark is much more friable and easily ground to fine particle size than wood. A major reduction in grinding energy is achieved by selecting the more friable material to be ground to fine size as the ignition fuel. The more resistant material is used as the principal fuel. When using a bimodal system, best results are obtained when the amount of ignition fuel sent to the burner is maintained constant. Load swings are accommodated by varying only the principal fuel component.

    Abstract translation: 本发明涉及生物质衍生的燃料如木材废料或泥炭的制备和燃烧。 森林工业的木材废料或“猪肉燃料”特别令人感兴趣。 通常，如果要在没有任何化石燃料支持的空气悬架燃烧器中成功燃烧，则该材料的整个流必须精细磨碎。 现在已经发现可以使用双峰尺寸的燃料。 总热能的大约10-20％从地面到小于约100μm的尺寸提供。 这用作可能具有更大尺寸的主要燃料的点火部件。 通常的猪肉燃料堆包含树皮和木材。 在这两种材料中，树皮比木材更易碎，容易磨碎成细粒度。 通过选择要被研磨的较脆碎的材料作为点燃燃料，可以大大降低磨削能量。 较为耐用的材料用作主要燃料。 当使用双峰系统时，当燃烧器发出的点火燃料的量保持恒定时，可获得最佳效果。 仅通过改变主要燃料组分来容纳负载摆动。

    Pulp mill recovery
    45.
    发明授权
    Pulp mill recovery 失效
    纸浆回收

    公开(公告)号：US4377439A

    公开(公告)日：1983-03-22

    申请号：US208666

    申请日：1980-11-20

    Applicant: Albert J. Liem

    Inventor： Albert J. Liem

    IPC: D21C11/12 ,  F23G5/30 ,  F23G7/04

    CPC classification number: D21C11/12 ,  F23G5/30 ,  F23G7/04 ,  F23G2201/10 ,  F23G2900/50211 ,  Y02P70/24 ,  Y10S423/03

    Abstract: A recovery system for residual liquor from a pulp mill, utilizing a fluidized bed to burn the organic material in the residual liquor and generate heat which may be recovered. Heat preferably from the flue gases is used to dry residual liquor sprayed to pellets extracted from the bed, thereby to provide pellets coated with dried residual liquor. The so coated and dried pellets are then reinjected into the bed and the organic material in the dried residual liquor is burned to generate the heat recovered from the bed.If the residual liquor is from a kraft mill sulfur compounds are in the form of sulfate and must be reduced to sulfide and a reducing stage will also be provided either in the reducing zone in existing conventional kraft system (if capacity is available) or in a separate reducing zone and some of the pellets from the bed may be directed to the reducing zone together with some of the pellets coated with dried residual liquor. Heat may be supplied to the reducing zone via an auxiliary fuel and reducing gases may also be supplied but preferably the ratio of carbon to pellets or the required temperature in the reducing zone will be obtained by the ratioing of caated and uncaated pellet fed to the reducing zone and the reduced material is withdrawn therefrom while the gases from the reducing zone are directed to the bed to complete their oxidation and generated heat.

    Abstract translation: 来自纸浆厂的残余液的回收系统，利用流化床将残余液中的有机物质燃烧并产生可以回收的热量。 使用优选来自烟道气的热量来干燥喷洒到从床上提取的颗粒上的残留液体，从而提供用干燥的残余液体涂覆的颗粒。 然后将如此涂覆和干燥的颗粒重新注入床中，并将干燥的残余液体中的有机材料燃烧以产生从床中回收的热量。 如果残留的液体来自硫酸盐纸浆，则硫化合物为硫酸盐形式，必须还原为硫化物，还可以在现有的常规硫酸盐系统的还原区（如果容量可用）或在 单独的还原区和一些来自床的颗粒可以与涂有干燥的残留液的一些颗粒一起导向还原区。 可以通过辅助燃料将热量供应到还原区，还可以提供还原气体，但优选地，碳与颗粒的比例或还原区中所需的温度将通过加入到还原剂 区域，并且还原材料被从其中取出，而来自还原区的气体被引导到床上以完成它们的氧化并产生热量。

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