子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Hybrid cement clinker and cement made from that clinker | US14180619 | 2014-02-14 | US08986444B2 | 2015-03-24 | Thomas Robl; Tristana Duvallet; Robert Rathbone; Yongmin Zhou |
| A hybrid cement clinker incorporates specific ranges of clinker phases and falls within specific modulus values as set forth and described in this document. | ||||||
| 182 | CEMENT CLINKER MANUFACTURING PLANT | US13882284 | 2011-10-27 | US20140065028A1 | 2014-03-06 | Francois Hue; Michel Pasquier; Philippe Lac |
| A cement clinker manufacturing plant that includes a plant for producing purified syngas, obtained from solid waste, and process for transferring ash recovered from the ash pan of the gasifier to at least one inlet of the feedstock conversion device, which the plant includes, and/or of the furnace for the purpose of incorporating said ash into the feedstock; and a process for conveying the purified syngas to the main tuyere of the furnace and/or to at least one inlet of the feedstock conversion device. | ||||||
| 183 | METHOD FOR TREATING PARTICULATE MATERIAL | US12992520 | 2009-05-08 | US20110065854A1 | 2011-03-17 | Abdel-Mohsen Onsy Mohamed; Maisa Mabrouk El Gamal |
| This invention describes the use of a fluidized bed reactor in the carbonation of a solid, inorganic and alkaline particulate material which contains alkaline metal salts. It also describes a method for treating cement kiln dust (CKD) containing alkaline metal salts. The treatment method comprises two steps: (a) a hydration step; and (b) a carbonation step, wherein the carbonation step is carried out in a fluidized bed reactor. In a preferred aspect of the present invention, the treated CKD is used as an aggregate in sulfur polymer concrete (SPC). Accordingly, the present invention also provides a method for producing SPC, which method comprises heating and mixing treated CKD of the present invention, elemental sulfur and modified sulfur to produce a mixture. The SPC can be used as a barrier to restrict permeation of matter, e.g. in a containment construction for storing matter such as hazardous waste. | ||||||
| 184 | High belite-containing sulfoaluminous clinker, method for the production and the use thereof for preparing hydraulic binders | US12493547 | 2009-06-29 | US07850776B2 | 2010-12-14 | Ellis Gartner; Guanshu Li |
| A sulphoaluminate clinker includes as a phasic formulation, compared with the total weight of clinker: 5 to 25% of a calcium aluminoferrite phase with a formulation corresponding to the general formula C2AXF(1−X), with X comprised between 0.2 and 0.8; 15 to 35% of a calcium sulphoaluminate phase yee' limit (C4A3$); 40 to 75% belite (C2S); from 0.01 to 10% of one or several minor phases selected from the group consisting of calcium sulphates, alkali sulphates, perovskite, calcium aluminates, gehlenite, free lime and periclase, and/or a vitreous phase, and additives including at least sodium and boron present in the following quantities, by weight as compared to the total weight of the clinker: from 0.1 to 5% of sodium expressed as sodium oxide and from 0.2 to 3% of boron, expressed as boron oxide, the total content of said additives being less than or equal to 15%. | ||||||
| 185 | Method and apparatus for removing contaminants from industrial processing plants | US12012770 | 2008-02-05 | US07794524B2 | 2010-09-14 | Ove Lars Jepsen; Peter T. Paone, III; John S. Salmento |
| A method and apparatus for removing purifying vaporizable contaminants such as mercury from a particulate material. Particulate material is first contacted with heated gases to vaporize the contaminants and entrain the material in the gases. The gases are directed to a first dust collector to remove the entrained particulates, after which a sorbent or chemical reagent is injected in the gases to interact with the contaminants and form a contaminant containing product that is entrained in the gases. The product is then separated from the gases in a second collector. | ||||||
| 186 | EXHAUST GAS TREATMENT METHOD AND SYSTEM FOR CEMENT BURNING FACILITY | US12564643 | 2009-09-22 | US20100083878A1 | 2010-04-08 | Yoshiaki KOMATSU; Michio Ishizaki; Hirokazu Shima; Hiroyuki Matsuda |
| An object of this invention is to provide an exhaust gas treatment method and system for a cement burning facility which allows the handling property of collected powder dust to be improved and which enables smooth removal of hydrogen chloride that may result from burning of organic sludge. When part of exhaust gas in a lowermost part of a preheater 3 or a kiln inlet part 2 of a cement kiln 1 is extracted to obtain extracted gas, a cement material is dispersed, and the disperse amount of the cement material is adjusted so as to maintain the temperature of the extracted gas between 950° C. and 1,150° C. The extracted gas is cooled to at most the melting point of a chlorine compound. Then, solid-gas separation device 12 adjusts a classification particle size to between 15 μm and 30 μm. Dust trap 13 collects and removes fine powder dust with a particle size equal to or smaller than the classification particle size. Thus, the amount of fine powder dust collected by the dust trap is maintained between 50 g/m3N and 150 g/m3N, with the concentration of chlorine in the collected fine powder dust set to between 5% and 20%. | ||||||
| 187 | METHOD FOR TREATING CEMENT KILN DUST | US12119525 | 2008-05-13 | US20090283016A1 | 2009-11-19 | Abdel-Mohsen Onsy Mohamed; Maisa Mabrouk El-Gamal |
| A method for treating cement kiln dust containing alkaline metal salts includes the steps of hydration (formation of calcium hydroxide), dehydration i.e. drying, fractionation by sieving and carbonation (reaction of the fractionated moistened cement kiln dust) with CO2 gas in a fluidized bed reactor. | ||||||
| 188 | Method and apparatus for removing contaminants from industrial processing plants | US12012770 | 2008-02-05 | US20090193968A1 | 2009-08-06 | Ove Lars Jepsen; Peter T. Paone, III; John S. Salmento |
| A method and apparatus for removing purifying vaporizable contaminants such as mercury from a particulate material. Particulate material is first contacted with heated gases to vaporize the contaminants and entrain the material in the gases. The gases are directed to a first dust collector to remove the entrained particulates, after which a sorbent or chemical reagent is injected in the gases to interact with the contaminants and form a contaminant containing product that is entrained in the gases. The product is then separated from the gases in a second collector. | ||||||
| 189 | Precipitated Calcium Carbonate (PCC) from Sugar Processing Byproducts for use in Cementitious Applications and Methods Thereof | US12038545 | 2008-02-27 | US20080210134A1 | 2008-09-04 | Dallas A. Hanks; Douglas Shaw |
| A process to make, in part, a refined material for use as crystallization accelerant in cementitious products. Evidence shows that calcium carbonate Fines (Ca+ ions) accelerate the crystallization process of CSH (Calcium-Silicate-Hydrate) phases which lends many advantages in cementitious products. The (PCC) fines materials from the sugar beet processing byproducts consist of these materials with various elements mixed or attached. This process selects for advantageous particles and discards others. This process includes, but is not limited to removing part of the undesirable material by either by screening or biodigestion of the lime to utilize energy contained in said unwanted material to dry in part said particles of PCC to specific moisture content and then screening the material to the remove more unwanted material and size PCC to spec necessary for cementitious materials. | ||||||
| 190 | Mid-kiln injection of waste-derived materials | US10834429 | 2004-04-29 | US20050241536A1 | 2005-11-03 | Lawrence Hoffis |
| A method for the production of cement clinker comprises the introduction of non-traditional materials into the kiln, preferably at a mid-kiln locations. The non-traditional materials are materials that are difficult, expensive or environmentally challenging for disposal. In one embodiment, weathered clinker is introduced into the kiln to admix with the raw material mix to augment clinker production. In another embodiment, bird, animal or human manure is added to the kiln so that gaseous reducing agents can be released by the manure and combine with certain noxious gases generated during the clinker production, to thereby reduce the noxious gas output. In other embodiments, other non-traditional waste-derived fuels are added to the kiln during clinker production, including railroad ties coated with creosote, industrial, commercial and consumer rubber components, such as rubber hoses, unshredded plastics, and organic materials, such as bird and animal meal. | ||||||
| 191 | System for manufacturing cement clinker | US10348829 | 2003-01-22 | US06626662B2 | 2003-09-30 | Hubert Ramesohl; Carsten Eckert |
| In order to provide a cement clinker production line with a calcinator connected to the rotary kiln and including a separate rotary drum-type reactor with the objective to safely burn even coarse secondary fuels in the drum-type reactor and also to evenly and effectively transfer the released heat energy to the cement raw meal, it is proposed in accordance with the invention to introduce into the rotary drum-type reactor on the inlet side for the solids a partial stream line of the tertiary air guided from the clinker cooler to the calcinator, a highly ignitable fuel, the low ignitable or low flammable secondary fuel and a partial stream line for the cement raw meal and to connect the exit side for the material on the rotary drum-type reactor via a line for carrying out the solid residues to the tertiary air channel and/or the rotary kiln exit gas channel of the calcinator and/or to the inlet chamber of the rotary kiln. | ||||||
| 192 | Recovery of cement kiln dust through precipitation of calcium sulfate using sulfuric acid solution | US10207316 | 2002-09-26 | US20030061972A1 | 2003-04-03 | Jerry F. Key JR. |
| A method and apparatus for recovering gypsum from spent cement kiln dust for reuse within a cement making process as a filler for use in the production of Portland cement. The invention advantageously provides for a method of producing a fertilizer as a byproduct of the gypsum production process. The invention also provides a method of producing Portland cement using the gypsum derived from the cement kiln dust. | ||||||
| 193 | Method for the utilization of residual materials in the production of cement | US08600165 | 1996-02-12 | US06391107B1 | 2002-05-21 | Hanno Reimann; Götz Reimann; Siegfried Meininger |
| Within the known Müller-Kühne process and a corresponding installation, a utilization of a great variety of residual materials can be achieved with optimum process control, both in regard to the production of a raw powder and the fuel, whereby this is made possible in particular in that the raw powder components and the fuel components also are, with respect to the residual materials being used, stored separately, conditioned, and then mixed according to the formulation under strict monitoring. The flue gas is used for preheating the raw powder by adding the cold raw powder to it. This simultaneously removes sticky components from the flue gas. The raw powder preheated in this manner, and also the raw powder or dust recovered in subsequent dedusters are returned to the rotary drum kiln, whereby the solid and other fuels are used and burned with a mutually supportive flame at the opposite end of the rotary drum kiln. | ||||||
| 194 | Process aid for preparing a flowable slurry | US09909163 | 2001-07-19 | US20020033121A1 | 2002-03-21 | Ollie William Marko |
| A process for preparing a flowable slurry comprising mixing 25-70 wt. % water; an alkaline material selected from the group consisting of chlorosilicon manufacturing byproducts, direct process residue gels, cement kiln dust, and mixtures thereof; and a process aid selected from the group consisting of sucrose, raffinose, lignin, methylglucopyranoside, lactose, fructose, sodium polyphosphate, trehalose and mixtures thereof to form a flowable slurry. This slurry is especially useful in the manufacture of cement. | ||||||
| 195 | Telescopic tube, in particular for sprinkler systems | US09230729 | 1999-02-02 | US06305722B1 | 2001-10-23 | Uwe Vieregge |
| The invention concerns a telescopic tube (10), in particular for sprinkler systems, comprising an outer tube (12) and an inner tube (14) which is movable relative to the latter and has an inner end piece (36) which extends inside the outer tube and has an outer diameter which is larger than the inner tube in their adjoining regions. The telescopic tube (10) further comprises a securing element (26) which surrounds the inner tube and is provided for the outer tube, the outer end (22) of the latter extending in said securing element (26). According to the invention, in order to provide a precise connection between the inner and outer tubes using precision screw machine parts in particular, the outer end (22) of the outer tube is widened and extends inside an annular mounting (24) of the securing element which in turn comprises an outer edge (34) which extends externally along the outer tube and is deformed in the direction of the outer end of the outer tube when the latter has been fitted in the mounting. | ||||||
| 196 | Method of treating spent potliner material from aluminum reduction cells | US277804 | 1999-03-27 | US6123908A | 2000-09-26 | Robert J. Barnett; Michael B. Mezner |
| A process of treating spent potliner material from aluminum reduction cells and recovering useful products. In the process of the present invention, spent potliner material is introduced into an acid digester containing, for example, sulfuric acid. As a result of this step, a gas component is produced which includes hydrogen fluoride, silicon tetrafluoride and hydrogen cyanide. Also, a slurry component is produced which includes carbon, a refractory material including silica, alumina, sodium compounds such as sodium sulfate, aluminum compounds such as aluminum sulfate, iron compounds such as iron sulfate, magnesium and calcium compounds such as magnesium and calcium sulfate. The slurry component remains in the digester after the gas component is removed. The gas component is recovered and heated an effective amount to convert or decompose the silicon tetrafluoride to fumed silica, hydrogen cyanide to a remaining gas component including CO.sub.2, H.sub.2 O, and nitrogen oxides, as well as HF gas. The remaining gas component is directed through a water scrubber in which the HF gas is converted to liquid hydrofluoric acid. The hydrofluoric acid is then admixed with alumina trihydrate to form aluminum fluoride (a commercially useful end product) and water. | ||||||
| 197 | Method for recycling particulate waste material and product obtained thereby | US75292 | 1998-05-08 | US6090197A | 2000-07-18 | Thomas A. Vivian; Colleen O'Connor |
| Calcium carbonate sludge from sugar beet refining is recycled for use as a blast cleaning medium; and contaminate blast cleaning media is employed in the manufacture of cement. Also disclosed herein is the use of pumice as an additive to enhance the efficiency of blast cleaning media. | ||||||
| 198 | Method for producing cement using manganese slag as raw material | US974877 | 1997-11-20 | US5916362A | 1999-06-29 | Toshiya Takahara; Shinji Tokitaka |
| A method for producing cement is disclosed. The method has the advantages that a setting time can be shortened as compared with conventional cement, and a manganese slag can be treated at low cost without giving load to environment, by using the manganese slag which has conventionally been subjected to waste disposal, as a cement raw material. The method comprises using, as a part of cement materials, a manganese slag which is an insoluble component formed in extraction step and refining step in a production of electrolytic manganese dioxide comprising extracting a manganese component from manganese-containing ore, refining a manganese-containing aqueous solution obtained, and conducting electrolytic treatment, to produce manganese dioxide. | ||||||
| 199 | Method for producing mineral products having a great heat content from waste materials and slurries and resulting products | US751616 | 1996-11-18 | US5843223A | 1998-12-01 | Guy Beauvent |
| The method for producing mineral products having a great heat content from waste materials and slurries and resulting products comprises the steps of: submitting the waste materials and slurries to a homogenizing mixing; making a stoichiometric mixture at least of CaCO.sub.3, clay and SiO.sub.2 ; circulating the stoichiometric mixture in at least one heating and calcinating furnace whereby a lime product is produced at a temperature for decarbonating CaCO.sub.3 ; separating at least in part the lime product; and raising the temperature at least until obtainment of (CaO).sub.2 (SiO.sub.2).beta. having hydraulic properties and a crystallised form wherein .beta. is belite. | ||||||
| 200 | Process for producing cement from a flue gas desulfurization process waste product | US852798 | 1997-05-07 | US5766339A | 1998-06-16 | Manyam Babu; John W. College; Russell C. Forsythe |
| Cement is produced by forming a moist mixture of a flue gas desulfurization process waste product containing 80-95 percent by weight calcium sulfite hemihydrate and 5-20 percent by weight calcium sulfate hemihydrate, aluminum, iron, silica and carbon, agglomerating the moist mixture while drying the same to form a feedstock, and calcining the dry agglomerated feedstock in a rotary kiln. Sulfur dioxide released from the calcium sulfite hemihydrate and calcium sulfate hemihydrate during calcination may be used to produce sulfuric acid, while heat recovered in the process is used to dry the agglomerating feedstock. | ||||||
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