39results about How to "Effectively remove dust" patented technology

A treatment system to efficiently remove lead from dust contained in extracted cement kiln combustion gas while reducing facility and running costs. A treatment system 1 comprising: a probe 3 for extracting a part of combustion gas, while cooling it, from a kiln exhaust gas passage, which runs from an inlet end of a cement kiln to a bottom cyclone; a classifier 5 for separating coarse powder from dust contained in the combustion gas extracted by the probe 3; a wet dust collector 6 for collecting dust from the extracted gas containing fine powder discharged from the classifier 5; and devices 12, 13 for feeding sulfurizing agent for sulfurizing lead contained in the kiln exhaust gas to the wet dust collector 6, and others. From the sulfurizing-agent feeders 12, 13 are preferably added the sulfurizing agents to a circulation liquid tank 7 or a pump 9 for circulating slurry. The slurry obtained by the wet dust collector 6 is separated into froth including lead and tail side slurry including gypsum by a flotation facility 14, 17, 18.

A treatment system to efficiently remove lead from dust contained in extracted cement kiln combustion gas while reducing facility and running costs. A treatment system 1 comprising a probe 3 for extracting a part of combustion gas, while cooling it, from a kiln exhaust gas passage, which runs from an inlet end of a cement kiln to a bottom cyclone; a first classifier 5 for separating coarse powder from dust contained in the combustion gas extracted; a dust collector 7 for collecting dust from the extracted gas containing fine powder discharged from the first classifier 5; and a second classifier 8 for dividing dust discharged from the dust collector 7 into fine powder and coarse powder, and others. Since more lead is distributed on the fine powder side classified by the second classifier 8, lead can efficiently be removed without using chemicals and the like. The fine powder classified by the classifier 8 may be desalted by washing; high-lead-level cake obtained after the washing can be recycled; or salt water can be added to a cement mill. The coarse powder may be added to a cement grinding process or returned to cement material grinding process after the desaltation through washing.

The invention disclosed herein provides for high particle removal rate and / or heat transfer from surfaces. The device removes particulate matter from a surface using a bounded vortex generated over the surface, with suction in the vortex center and jets for blowing air along the periphery. The jets are tilted in the tangential direction to induce vortex motion within the suction region. The vortex is said to be bounded because streamlines originating in the downward jets are entrained back into the central vortex.

A dust collector includes a dust container; a centrifugal separator installed inside the dust container to separate dust from air; a filter unit installed at a discharge hole of the centrifugal separator and provided with a filter member; and a dust-removing device for dislodging dust from the filter unit. The dust-removing device includes a dust removal unit including a dust-removing member having dust-removing projections formed on an undersurface thereof, wherein the dust-removing projections move back and forth while contacting the filter unit to dislodge dust from the filter unit; and a drive unit for providing driving power to the dust removal unit.

A portable power working machine is disclosed, which is capable of effectively minimizing the clogging of the air cleaner, thereby dispensing with frequent maintenance. This portable power working machine comprises an air cleaner (30) having a base body case (32) provided with a clean air discharge port (33) for introducing the air cleaned into an intake port (25) of a carburetor (14), a filter (35) which is mounted on a filter mounting opening (32a) of base body case (32) so as to seal it, and a cleaner cover (37) which is attached onto the filter (35) so as to cover the filter (35) and to guide outside air toward the filter (35), while giving a predetermined directionality to the outside air. The air cleaner (30) is also configured to include a suction port (50) and a suction guiding member (55) both designed to discharge the dust out of the air cleaner (30) through a space formed between the filter (35) and the cleaner cover (37) as the dust adhered to the outside air side of the filter (35) is sucked out by taking advantage of a negative pressure to be generated by a fan (22).

In order to efficiently remove dust, an image pick up apparatus is provided with an image sensor for acquiring subject images via a photographing lens, a shift mechanism, holding the image sensor, capable of moving the image sensor in a first direction orthogonal to the optical axis of the photographing lens, and in a second direction that is different from the first direction, a sensor arranged in front of the image sensor, for detecting vibration applied to the optical element that is displaced by the shift mechanism together with the image sensor, and a controller for driving the shift mechanism according to output of the sensor for detecting vibration when operation is carried out to prevent image shake due to vibration applied to the image pickup apparatus, and moving the shift mechanism in accordance with a specified pattern regardless of sensor output when carrying out a dust removal operation for removing dust that has become attached to the surface of the optical element.

An apparatus having image forming units to form respective toner images of different colors on a toner-image receiving medium, each unit including an image carrier, a static-latent-image forming portion to form a static latent image on the image carrier, a developing portion to apply a toner of the corresponding color to the image carrier, for forming the toner image on the image carrier, and a toner transferring portion to transfer the toner image from the image carrier to the medium, wherein the image forming units are disposed so as to be opposed to the medium and operable to sequentially transfer the toner images from the image carriers to the medium, and the developing portion of each unit is operable to adsorb the toner remaining on the image carrier after the toner image is transferred to the medium, and wherein at least the image forming unit located at the most upstream position of the apparatus is provided with a dust removing portion to remove, from the image carrier, a dust which has been transferred to the image carrier during a transfer of the toner image from the image carrier to the medium.

A treatment system to efficiently remove lead from dust contained in extracted cement kiln combustion gas while reducing facility and running costs. A treatment system 1 comprising a probe 3 for extracting a part of combustion gas, while cooling it, from a kiln exhaust gas passage, which runs from an inlet end of a cement kiln to a bottom cyclone; a first classifier 5 for separating coarse powder from dust contained in the combustion gas extracted; a dust collector 7 for collecting dust from the extracted gas containing fine powder discharged from the first classifier 5; and a second classifier 8 for dividing dust discharged from the dust collector 7 into fine powder and coarse powder, and others. Since more lead is distributed on the fine powder side classified by the second classifier 8, lead can efficiently be removed without using chemicals and the like. The fine powder classified by the classifier 8 may be desalted by washing; high-lead-level cake obtained after the washing can be recycled; or salt water can be added to a cement mill. The coarse powder may be added to a cement grinding process or returned to cement material grinding process after the desaltation through washing.

A dust removing device generates vibrations at least at a wavelength λ in a vibrating member by applying alternating voltages to a first piezoelectric element and a second piezoelectric element, respectively. The first piezoelectric element is provided on a first surface of the vibrating member that is on a side having a target surface. The second piezoelectric element is provided on a second surface of the vibrating member that is opposite the first surface. When the first piezoelectric element and the second piezoelectric element are projected in a direction that is normal to the target surface, a distance dL1 between a vibration generating end of the first piezoelectric element and a vibration generating end of the second piezoelectric element is expressed in the form dL1>0, where dL1≠nλ / 2 and n is a positive integer.

There is disclosed an imaging apparatus having: (a) a drive mechanism for moving an imaging device subunit having an imaging device in mutually perpendicular first and second directions; (b) a first actuator for moving the imaging device subunit in the first direction; (c) a second actuator for moving the imaging device subunit in the second direction; (d) a sensing device for detecting the direction of gravity; and (e) a dust-removing device for shaking off dust adhering to the imaging device subunit by moving the subunit using at least one of the two actuators. The dust-removing device has: a setting unit for setting a direction of motion in which the imaging device subunit is moved, based on the direction of gravity detected by the sensing device; and a selecting unit for selecting an actuator used to drive the imaging device subunit in the direction of motion set by the setting unit from the first and second actuators.

An air filter (30) intermittently rotates by a predetermined rotation angle at each time, while being in contact with a bristle portion (51b) of a rotating brush (51). Accordingly, dust on the air filter (30) is scraped by the bristle portion (51b). The brush member (51) rotates about an axial center of a shaft (51a) at each stop of the intermittent rotation of the air filter (30), to come into contact with a cleaning brush member (52). According, dust on the brush member (51) is removed by the cleaning brush member (52).

A dust removal apparatus of a photographing apparatus comprises a movable unit and a controller. The movable unit has an imaging device and is movable. The controller strikes the movable unit against a boundary of a range of movement of the movable unit as a dust removal operation. The controller counts the number of times of the dust removal operation, measures an elapsed time from the point when counting the number of times of the dust removal operation commences. When the elapsed time is less than or equal to a time period and the number of times of the dust removal operation is equal to or greater than a predetermined number of times, the controller halts the dust removal operation until a predetermined time period has elapsed.

The invention discloses an ash removal method for regeneration pretreatment of a plate-type denitration catalyst. The ash removal method comprises the following steps: (1) dry-process ash removal via compressed-air purging: disassembling a catalyst module, removing accumulated ash on the surface of a catalyst unit body, putting the catalyst unit body into an automatic ash blowing equipment room, conducting blowing with compressed air in the windward side and the leeward side of the catalyst unit body separately, and placing the catalyst unit body having been subjected to ash removal in a module box again; (2) wet-process ash removal via automatic spraying: starting an automatic spraying and washing line to spray and wash the catalyst module; (3) ash removal via high-pressure water gun flushing: flushing the windward side of the catalyst module via a high-pressure water gun under the condition that the high-pressure water gun and the windward side of the catalyst module forms an angle of 90 degrees, then flushing a module box shell, hoisting the catalyst module, and conducting flushing from the leeward side of the catalyst module by using the high-pressure water gun. The method can be used for comprehensively and thoroughly removing accumulated ash on the outer surface of the catalyst and the pore channels of the catalyst, and follow-up catalyst regeneration difficulty is reduced.

A groove machining head has a dust collecting hood 40 having a suction port in the vicinity where tools 32 protrude from a bottom plate 33 of the groove machining head. When performing groove machining on a substrate W using the groove machining head 30, a blower 35 sucks air inside the dust collecting hood 40 through ducts 34. Doing so can suck dust produced by the groove machining through the suction port of the dust collecting hood 40 before attachment of the dust on the substrate W.

An image-capturing apparatus including an imaging device to convert light into an electrical signal; a vibration plate disposed in front of the imaging device to transmit the light to the imaging device; a vibration generating unit mounted on the vibration plate and to generate a vibration when a driving signal is input to the vibration generating unit; and a vibration partitioning unit mounted on at least one of the vibration plate or the vibration generating unit to asymmetrically deliver the generated vibration to the vibration plate.