摘要:
A sludge concentrating apparatus comprising a sludge tank for storing sludge and a filter cloth having a shape of endless belt which turns between upper and lower rollers, further comprising filtering means of which at least the lowermost of rollers is immersed in the sludge, washing means of the filter cloth, and a filtrate chamber having a filtrate introducing port in contact with the filter cloth and a weir, wherein a sludge distributing tank serving as sludge introducing means into the sludge tank is provided near the upper end of the filtrate introducing port, and a concetrated sludge discharge tank serving as concertrated sludge introducing means with the filter cloth in between; said sludge concentrating apparatus further comprising coagulant adding means for adding an acid, and a flow adjustment device serving as a sludge uniform feeding means which feeds sludge fed into the sludge tank uniformly in the width direction of the filter cloth. It is thus possible to efficiently concentrate sludge produced in a sewage disposal plant in a large quantity without depending upon properties of sludge.
摘要:
The present invention mainly aims to provide cutting method and cutting apparatus for manufacturing a guide rail of a rolling guide device by efficiently cut-working a long scale hardened steel. In order to achieve such object, there is provided a cutting method of linearly cutting a work surface (3) of the long scale hardened steel (2) along the longitudinal direction thereof. In this process, it is desired to arrange a plurality of CBN tools (7) along the longitudinal direction of the long scale hardened steel (2) to thereby sequentially cut the work surface (3). Furthermore, a cutting apparatus of the present invention comprises a fixing device (4) for fixing the long scale hardened steel (2), a tool rest (5) which is guided by a guide device (6) disposed along the longitudinal direction of the fixing device (4) and the CBN tool (7) cut-working the work surface (3) of the long scale hardened steel (2) held by the tool rest (5).
摘要:
An electrode used for electrical discharge machining of a workpiece, where the electrode comprises electrically-conductive diamond having a maximum specific resistivity of 1×10−3Ω·m. The electrically-conductive diamond further has a thermal diffusivity of at least 0.23×10−3 m2/s. In an alternative arrangement, the electrode comprises boron-doped, electrically-conductive diamond.
摘要:
A sludge concentrating device comprising a sludge tank storing sludge, a filtering means having an endless belt filter cloth revolving around upper and lower rollers with at least the lowermost roller immersed in the sludge, a filter cloth washing means, a filtrate chamber having a filtrate inlet close to the filter cloth and a weir, a sludge distributing tank serving as a means for introducing sludge into the sludge tank and disposed in the vicinity of the upper end of the filtrate inlet, and a concentrated sludge discharge tank serving as means for discharging concentrated sludge from the sludge tank and disposed in a position substantially opposed to the sludge introducing means with the filter cloth interposed therebetween, wherein the device further comprises a flocculant adding means for adding a flocculant to the sludge fed to the sludge tank, an acid adding means for adding an acid, and a rectifier serving as a uniform sludge feeding means for feeding sludge into the sludge tank uniformly widthwise of the filter cloth. Thus, the sludge produced in a sewage disposal plant can be concentrated in large quantities and efficiently without depending on its properties.
摘要:
A calendar-based user interface for electronically stored documents is provided by virtue of the present invention. Each document has an associated time. A calendar view is constructed including an icon representing a particular document. The icon is presented at a location corresponding to the time of the document. In one embodiment, the calendar view includes a month view with each date having a corresponding area for presentation of document icons for documents processed on that date.
摘要:
A carrier for double-side polishing, which has a polishing pad dressing function as well as a polishing function, so that it can do removal of matter stuck to polishing pads and wear correction thereof concurrently with polishing and ensure stable work polishing accuracy. A resin-coated metal or resin ring is provided around the outer periphery of a carrier portion having work retainer holes and abrasive feed holes, and projections are formed on the upper and lower surfaces of the ring. The projections are cylindrical, triangular pyramidal, quadrangular pyramidal or conical, or they may be irregular projections formed by blasting.
摘要:
An automatic capture device, situated between a telephone line and a fax machine, provides real-time monitoring, recording, and selective modification of fax transmissions, and forwarding of the fax data to a computer interface. The automatic capture device is dynamically reconfigurable, capable of adaptation to a variety of facsimile formats and computer interfaces.
摘要:
A method of manufacturing semiconductor mirror wafers includes a double side primary mirror polishing step and a single side final mirror polishing step. The method having the double side mirror polishing step is capable of higher flatness level wafer processing, suppression of fine dust or particles, thereby to increase the yield of semiconductor devices, higher productivity due to simplification of processes, higher quality processing with lower manufacturing cost than conventional methods.
摘要:
A polishing pad composed of a rigid polyurethane added with CaCO.sub.3 particles is able to provide polished wafers having a surface roughness which is comparable to that attained by the conventional final polishing process. Even when polishing is achieved under a high load condition to improve the productivity, the polished wafers are free from deformation, such as concaving, and have an excellent flatness.
摘要:
A muffler for internal combustion engines is formed of vertically separable body sections so that the sound absorbing and filter members may be accessed easily for replacement and/or cleaning.