公开(公告)号：US5273556A

公开(公告)日：1993-12-28

申请号：US860470

申请日：1992-03-30

Applicant: Matthew A. McMahon ,  Ronald J. McKeon ,  Robert F. Heyl ,  Motasimur R. Khan ,  Kenneth W. McKenzie ,  Enrique F. Depaz

Inventor： Matthew A. McMahon ,  Ronald J. McKeon ,  Robert F. Heyl ,  Motasimur R. Khan ,  Kenneth W. McKenzie ,  Enrique F. Depaz

IPC: C02F11/10 ,  C10J3/46 ,  F23K1/02

CPC classification number: F23K1/02 ,  C02F11/10 ,  C10J3/00 ,  C10J2300/0906 ,  C10J2300/0923 ,  C10J2300/1846 ,  Y02W10/40 ,  Y10S48/07

Abstract: A process for disposing of sewage sludge by heating and shearing an aqueous mixture of sewage sludge in a tubular-shaped processing means containing a plurality of rotating agitators to produce a pumpable aqueous slurry of sewage sludge. The aqueous slurry of sewage sludge is mixed with solid carbonaceous fuel or an aqueous slurry of solid carbonaceous fuel to produce a pumpable aqueous slurry of sewage sludge and solid carbonaceous fuel. The aqueous slurry of sewage sludge and solid carbonaceous fuel is heated in a first steam jacketed rotary disc mixing-heating means. Alternately, first and second hoppers are filled with said heated aqueous slurry of sewage sludge and solid carbonaceous fuel and cycled between a second steam jacketed rotary disc mixing-heating means; wherein while one hopper is being filled the contents in the other hopper are being dewatered. The thickened pumpable slurry is burned in a partial oxidation gasifier, furnace, boiler, or incinerator to produce a hot effluent gas steam. By this process, noxious sewage sludge may be disposed of without contaminating the environment. By-product synthesis gas, reducing gas, or fuel gas may be produced.

Abstract translation: 一种处理污水污泥的方法，该装置通过加热和剪切含有多个旋转搅拌器的管状加工装置中的污水污泥的混合物来制造污水污泥的可泵送含水浆料。 污水污泥的含水浆料与固体碳质燃料或固体碳质燃料的含水浆料混合，生产污泥和固体碳质燃料的可泵送含水浆料。 污水污泥和固体碳质燃料的含水浆料在第一蒸汽夹套旋转盘混合加热装置中加热。 替代地，第一和第二料斗填充有所述加热的污水污泥和固体碳质燃料的水浆料，并在第二蒸汽夹套旋转盘混合加热装置之间循环; 其中当一个料斗被填充时，另一个料斗中的内容物被脱水。 增稠的可泵送浆料在部分氧化气化器，炉，锅炉或焚化炉中燃烧以产生热废气气体蒸汽。 通过这个过程，可以处理有害污水污泥而不污染环境。 可以生产副产物合成气，还原气体或燃料气体。

公开(公告)号：US5230211A

公开(公告)日：1993-07-27

申请号：US685338

申请日：1991-04-15

Applicant: Matthew A. McMahon ,  Michael C. Martin ,  Kenneth W. McKenzie

Inventor： Matthew A. McMahon ,  Michael C. Martin ,  Kenneth W. McKenzie

IPC: A62D3/00 ,  C02F11/10 ,  C10J3/46 ,  F02C3/28

CPC classification number: F02C3/28 ,  C02F11/10 ,  C10J3/46 ,  C10J3/466 ,  C10K1/101 ,  C10J2300/0906 ,  C10J2300/0909 ,  C10J2300/0923 ,  C10J2300/0996 ,  C10J2300/1223 ,  C10J2300/1606 ,  C10J2300/165 ,  C10J2300/169 ,  C10J2300/1846 ,  C10J2300/1884 ,  Y02E20/16 ,  Y02P20/129 ,  Y02W10/40 ,  Y10S48/07

Abstract: An improved process for the low-cost disposal of noxious municipal sewage sludge in a safe way without polluting the environment. In the process, a portion of a stream of dewatered sewage sludge having a solids content in the range of about 17 to 40 wt.% is dried to produce dried sewage sludge having a solids content in the range of about 75 to 99 wt.%. The dried sewage sludge is ground to a small particle size. A pumpable aqueous feed slurry having a solids content in the range of about 45 to 70 wt.% is produced comprising (a) solid carbonaceous fuel, (b) ground dried sewage sludge, and (c) sheared and/or unsheared dewatered sewage sludge. The parts by weight of (a):(b):(c) are respectively in the range of about 3 to 8:0.5 to 2:0.5 to 2, and preferably 6:1:1. The aqueous feed slurry is gasified in a free-flow partial oxidation gas generator. Synthesis gas, reducing gas or fuel gas is produced, Ash and slag are separated from the gas stream and safely disposed. Waste heat produced in the process may be used to dry the sewage sludge.

Abstract translation: 以安全的方式低成本处置有害城市污水污泥而不污染环境的改进措施。 在此过程中，将一部分固体含量在约17至40重量％范围内的脱水污水污泥流干燥，以产生固体含量在约75至99重量％范围内的干燥污水污泥， 。 将干燥的污水污泥研磨成小粒径。 产生固体含量在约45至70重量％范围内的可泵送含水进料浆料，其包含（a）固体碳质燃料，（b）研磨干燥的污水污泥和（c）剪切和/或未干燥的脱水污水污泥 。 （a）：（b）：（c）的重量份分别为约3〜8：0.5〜2：0.5〜2，优选为6：1：1。 含水原料浆料在自由流动部分氧化气体发生器中气化。 产生合成气，还原气体或燃料气体，灰分和炉渣与气流分离并安全排放。 在该过程中产生的废热可用于干燥污水污泥。

公开(公告)号：US5266085A

公开(公告)日：1993-11-30

申请号：US980024

申请日：1992-11-23

Applicant: Matthew A. McMahon ,  Motasimur R. Khan ,  Robert F. Heyl ,  Ronald J. McKeon ,  Kenneth W. McKenzie

Inventor： Matthew A. McMahon ,  Motasimur R. Khan ,  Robert F. Heyl ,  Ronald J. McKeon ,  Kenneth W. McKenzie

IPC: C02F1/04 ,  C02F1/50 ,  C02F11/10 ,  C02F11/18 ,  C10J3/46 ,  F23K1/02 ,  C02F11/06

CPC classification number: C02F1/048 ,  C02F1/50 ,  C02F11/10 ,  C02F11/18 ,  C10J3/00 ,  F23K1/02 ,  C10J2300/0903 ,  C10J2300/0906 ,  Y02W10/40 ,  Y10S48/07

Abstract: A process for disposing of sewage sludge comprising the steps of, (1) dewatering the sewage sludge to produce an aqueous slurry of sewage sludge having a solids content of about 10 to 30 wt. %; (2) simultaneously heating and shearing said dewatered sewage sludge at about 150.degree. F. to 210.degree. F. in the absence of air for 0.5 seconds to 60 minutes while being continuously passed through a tubular-shaped processing means containing a plurality of rotating agitators, thereby producing a pumpable slurry having a viscosity of less than about 2000 centipoise; (3) dewatering the sewage sludge if necessary; (4) mixing at a temperature in the range of about ambient to 180.degree. F. in a ribbon or in-line static mixer the slurry of sewage sludge from (2) and/or (3) with a supplemental solid carbonaceous fuel e.g. coal and/or petroleum-coke to produce a pumpable aqueous slurry of sewage sludge and supplemental fuel having a solids content in the range of about 50 to 60 wt. %; (5) mixing the slurry of sewage sludge and supplemental fuel from (4) in a steam jacketed continuous rotary disc mixer at about 180.degree. F. to 250.degree. F. while removing steam to produce a pumpable slurry of dewatered sewage sludge and solid fuel having a solids content of 50 to 65 wt. % and a HHV of 6,000 to 18,000 BTU/LB; and (6) burning said pumpable slurry from (5) in a partial oxidation gasifier, furnace, boiler, or incinerator to produce an effluent gas stream. In a preferred embodiment, the effluent gas stream is cleaned and purified and non-contaminating ash and slag are separated. By this process, noxious sewage sludge may be disposed of without contaminating the environment. By-product synthesis gas, reducing gas, or fuel gas may be produced.

Abstract translation: 一种处理污水污泥的方法，包括以下步骤：（1）对污水污泥进行脱水以产生固体含量为约10至30重量％的污水污泥的含水浆液。 ％; （2）在不存在空气的情况下，在不存在空气的情况下，在约150°F至210°F的同时加热和剪切所述脱水污泥0.5秒至60分钟，同时连续通过包含多个旋转搅拌器的管状加工装置 从而产生粘度小于约2000厘泊的可泵送浆料; （3）必要时对污泥进行脱水处理; （4）在带状或在线静态混合器中，在约环境温度至180°F的温度范围内混合来自（2）和/或（3）的污水污泥与补充的固体碳质燃料的淤浆。 煤和/或石油焦，以产生污水污泥的可泵送含水浆料和固体含量在约50至60重量％范围内的补充燃料。 ％; （5）将蒸汽夹套连续旋转圆盘混合器中的污水泥浆和补充燃料的浆料混合在约180°F至250°F，同时除去蒸汽以产生脱水污泥和固体燃料的可泵送浆料 固体含量为50至65wt。 ％和HHV为6,000至18,000BTU / LB; 和（6）在部分氧化气化器，炉，锅炉或焚烧炉中将来自（5）的可泵送浆料燃烧以产生流出气流。 在一个优选的实施方案中，将废气流清洁和净化，并且将非污染灰和渣分离。 通过这个过程，可以处理有害污水污泥而不污染环境。 可以生产副产物合成气，还原气体或燃料气体。