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92results about How to "Reduce operating rate" patented technology

Protective Film Structure of Metal Member, Metal Component Employing Protective Film Structure, and Equipment for Producing Semiconductor or Flat-Plate Display Employing Protective Film Structure

Multifunction production equipment enabling a plurality of processes in which deposition of reaction products on the inner wall of the processing chamber of equipment for producing a semiconductor or a flat-plate display, metal contamination due to corrosion of the inner wall, or the like, and fluctuation of the process due to discharged gas are suppressed, and a protective film structure for use therein. On the surface of a metal material, a first coating layer having an oxide coating of 1μ thick or less formed as an underlying layer by direct oxidation of a parent material, and a second coating layer of about 200 μm thick are formed. With such an arrangement, corrosion resistance against irradiation with ions or radicals can be imparted to a second layer protective film, and the effect of a protective layer for preventing corrosion of the surface of parent metal caused by diffusing molecules or ions into the second layer protective film can be imparted to the first layer oxide film. Consequently, contamination of the substrate with metals generated from each metal member and the inner surface of the process chamber is reduced, and stripping of the second layer protective film due to lowering in adhesion of the second layer protective film due to corrosion of the interface between the parent material and the second layer protective film can be suppressed.
Owner:NGK SPARK PLUG CO LTD +2

Method for preparing cement clinker from high-proportion carbide slag through decomposition outside kiln of five-stage preheater

The invention relates to a method for preparing cement clinker from high-proportion carbide slag through decomposition outside a kiln of a five-stage preheater. The method is finished by the steps of drying carbide slag, grinding raw materials, and sintering clinker. The step of the drying carbide slag simultaneously comprises the substeps of drying and removing impurities; the step of grinding the raw materials comprises the substeps of grinding, and discharging waste gas; and the step of sintering the clinker comprises the substeps of preheating outside the kiln, decomposing outside the kiln, calcining, and storing the clinker. By implementing the method, the problems of waste residue treatment in the conventional domestic industry for preparing industrial chemicals by an acetylene method are solved, the waste residues such as carbide slag, crushed limestone, limemud and the like can be utilized to the maximum extent, and the problems of environmental pollution caused by waste residue treatment are solved. The carbide slag with water content of less than or equal to 10 percent is directly dried by waste gas of a kiln tail; an additional heat source is saved; waste heat is utilized reasonably; through air separation of the carbide slag in a dryer, ferrosilicon is removed from the carbide slag, the problem that ferrosilicon blocks a grid plate in a mill is solved, the operation of a raw material mill is separated from the operation of a rotary kiln, the operation rate of the raw material mill is reduced, the raw material mill can adapt to various raw materials of carbide slag, and the capacity of the raw material mill is utilized to the maximum extent.
Owner:新疆凯盛建材设计研究院(有限公司)

Improved production process for preparing sulfuric acid and cement from gypsum

The invention relates to an improved production process for preparing sulfuric acid and cement from gypsum. Raw materials comprise dihydrate gypsum, clay and a reducing agent. The process comprises the following steps of: drying the raw materials; independently grinding; mechanically stirring and homogenizing; preheating green stock; decomposing and calcining through a rotary kiln; acid-washing and purifying kiln gas; drying through SO2; performing a double-conversion double-absorption process; and grinding the cement to prepare sulfuric acid and cement products, wherein a dihydrate gypsum process is adopted; the raw materials are dried by absolute dry tail gas at the temperature of between 70 and 85 DEG C which is discharged out of a sulfuric acid absorption device to obtain the dihydrate gypsum with free water content of less than 5 weight percent; and the dihydrate gypsum is then directly homogenized with the clay and the reducing agent in the presence of CaCl2 or Na2SO4 to produce the green stock. In the process, the heat consumption is reduced by 30 percent, the power consumption is reduced by 20 percent, the investment is reduced by 25 to 40 percent, and the cost is reduced by 25 to 30 percent. The process overcomes the disadvantages of high power consumption and heat consumption, large investment, low operation ratio and the like in the conventional method, 0.4 to 0.5 tonnage of steam serving as a byproduct is produced by every tonnage of sulfuric acid, and the process has obvious economic benefit.
Owner:南京创能电力科技开发有限公司

Method for allowing hot rolled strip steel to pass through fault rolling mill without being rolled

The invention provides a method for allowing hot rolled strip steel to pass through a fault rolling mill without being rolled. The method comprises the following steps of: assembling two waste working rolls and a bearing base to form a fault machine frame, and arranging the fault machine frame in the fault rolling mill according to a normal roll replacing process, wherein transmission sides of the two waste working rolls are not provided with flat heads, and torsion holes are drilled on roll heads on working sides of the two waste working rolls; after an upper working roll is lifted by 60 to 70 millimeters, closing a water sealing plate is closed, starting to roll and adding cooling water of the rolling mill; and allowing the strip steel to pass through the fault rolling mill without being rolled for a period of time, and rotating a lower working roll by utilizing a special torsion rod to change a contact position with the strip steel. By the method, any rolling mill can produce the strip steel while performing fault processing under the condition of faults on a strip steel production line, so that the actual rolling stop time due to the faults of a main transmission system is shortened effectively, and the quality of products is ensured while the operating rate and yield of the rolling mill are improved substantially.
Owner:ANGANG STEEL CO LTD

Production line system and automated warehouse used in the system

A production line system (1) comprises a core apparatus (10) of a stacker crane form and various processing lines (20, ..., 110) for performing various processes on a glass substrate that is received in a substrate receiving cassette stored in the core apparatus (10) and connected at plural loading/unloading positions (C1, C2) of the core apparatus (10) through a substrate loading/unloading mechanism (16a, 16b). At this time, the processing lines (20, ..., 90) are production lines that are used to perform various process for producing color filters, wherein the processing lines (20, ..., 70) are main screen-making lines for performing the processing steps including photolithography process, while the processing line (90) is a reserve screen-making line for performing the same process. Further, processing line (100) is a substrate inspection line that inspects a processed glass substrate that has been processed in the processing lines (20, ..., 90), and the processing line (110) is a substrate regeneration line that regenerates a glass substrate in which a defect was detected. Further, in a conveying path (15) of the processing lines (30, ..., 70), common defect inspection machines (39-77) are arranged for inspecting a common defect occurring at the same position in a plurality of glass substrates of the processed object. Further, the cassette that is stored and conveyed by the core apparatus (10) is preferably a frame line type cassettes that uses a plurality of frame lines suspending between left and right frames to support the substrate in a horizontal status.
Owner:DAI NIPPON PRINTING CO LTD
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