208results about How to "Remove dust" patented technology

A waste gas treatment system having a burner part and a combustion chamber provided at a downstream side of the burner part. Combustion flames are formed from the burner part toward the combustion chamber, and a waste gas is introduced into the combustion flames, thereby oxidatively decomposing the waste gas. The combustion chamber is formed from an inner wall made of a fiber-reinforced ceramic material. Therefore, the wear of the inner wall due to heat and corrosion is minimized, and thermal stress cracking is also reduced. Consequently, the lifetime of the system increases, and the cost of equipment and the availability factor can be improved. In addition, because the inner wall exhibits no catalytic effect, the formation of thermal NOx is suppressed, and it is possible to achieve environmental preservation and to simplify the treatment equipment.

A cooling system for use in a work machine is provided, in which an increase in the load imposed on a fan driving circuit and occurrence of abnormal noise can be prevented without fail by means of an inexpensive arrangement at the time of switching the rotating direction of a cooling fan. To this end, the cooling system comprises: (1) a variable displacement hydraulic pump driven by the engine; (2) a forwardly and reversely rotatable hydraulic motor operated by hydraulic oil supplied from the hydraulic pump; (3) a cooling fan driven by the hydraulic motor; (4) an electromagnetic selector valve for switching the rotating direction of the hydraulic motor between a forward direction and a reverse direction; (5) controlling means for controlling switching of the electromagnetic selector valve and controlling the hydraulic pump so as to minimize the discharge oil rate of the hydraulic pump during switching of the electromagnetic selector valve.

A communication cabinet, that includes: at least one fan, adapted to rotate at a first direction during a first period and to rotate at a second opposing direction during a second period; a controller, adapted to control the at least one fan; and at least one filter positioned to prevent dust from entering the communication cabinet and to allow air to exit the communication cabinet such as to remove dust from the filter during the second period. A method for dust removal from a filter, the method includes: providing communication cabinet that comprises the filter, whereas the filter is positioned such as to prevent dust from entering the communication cabinet; rotating at least one fan at a first direction during a first period such as to cool at least one communication circuit installed within the communication cabinet; and rotating the at least one fan at a second opposing direction during a second period such as to remove dust from the at least one filter.

An apparatus for charging dry air or nitrogen gas into a container for storing semiconductor wafers can remove chemical gas and moisture from the container, and then prevent acid from being generated at the surfaces of the wafers.

The apparatus A for charging dry air or nitrogen gas into a container 1 for storing semiconductor wafers 9 is connected to an opening 8a, acting as an intake, and to an opening 8b, acting as an exhaust, wherein the container 1 comprises a plurality of openings 8 disposed at the bottom plate of the container 1, the apparatus comprising:

PTFE filters 7 disposed at the plurality of openings 8a, 8b,

a portion 11 for providing the dry air or nitrogen gas to the container 1, and

a portion 12 for exhausting the used dry air or nitrogen gas from the container 1 after removing chemical gas and moisture from the container, and then preventing acid from being generated at the surfaces of the wafers 9.

A polishing apparatus is configured to simultaneously polish both surfaces of a work, and includes a pair of stools rotating in opposite directions, a pair of detecting units configured to detect rotation rates of the stools, a pressurizing unit configured to compress the work between the pair of the stools, a slurry supply unit configured to supply a slurry to the stool, and a control unit configured to reduce, when determining that a frictional force between the polishing surface and the work exceeds a threshold, at least one of a load applied by the pressurizing unit, the rotation rate of the stool, and a supply amount of the slurry supplied by the slurry supply unit.

A flow path forming member is formed with a recessed portion for forming an ink flow path. A junction surface of the flow path forming member is in a protruded state from a non-junction surface. The flow path forming member is composed of a transparent resin exhibiting transmissivity of laser beam. A tank holder is composed of a non-transmissive resin having no transmissivity of the laser beam. In a state where the flow path forming member is press-connected to the tank holder, the junction surface is welded by irradiating a periphery of the ink flow path with the laser beam from the side of the flow path forming member, thereby forming an ink flow path. Provided is an ink jet recording head in which the tank holder and the flow path forming member that serve to form the ink flow path are surely connected by a small number of steps without producing foreign matters within the ink flow path.

An electronic device includes: a casing in which electronic components including a heat-emitting component which emits heat during operation are accommodated; a heat-dissipating component including a plurality of fins to which heat emitted in the heat-emitting component transfers; a fan operable to supply cooling air to the heat-dissipating component; and a cleaning component movable on an end surface of the fins along the side nearer the fan with the cleaning component abutting against the end surface of the fins. In these features, dust on the end surface of the fins can be automatically removed by moving the cleaning component in the case of the spatial orientation of the electronic device being changed. Therefore, an effect of removing heat emitted in the heat-emitting components, by using cooling air supplied from the fan, can be continuously obtained.

The invention discloses an electrostatic spraying streetlamp device capable of eliminating PM2.5 (Particulate Matter 2.5). The device comprises a streetlamp pole, a power supply, a lamp and a high-voltage electrostatic spraying system, wherein the power supply is electrically connected with a light-operated streetlamp controller of the lamp; the lamp is positioned on a lamp arm; the high-voltage electrostatic spraying system comprises a metal nozzle, a DC (Direct Current)-high-voltage DC inverter, a liquid storage tank, a water pump and a spraying controller for controlling the DC-high-voltage DC inverter and a water pump motor to work; the spraying controller is electrically connected with the power supply; the water pump is connected with the metal nozzle through a liquid delivery pipe; the metal nozzle is connected with the positive electrode of the voltage output end of the DC-high-voltage DC inverter; the negative electrode of the voltage output end of the DC-high-voltage DC inverter is grounded. According to the device, illumination is provided; in addition, air can be purified, and PM2.5 in the air can be effectively eliminated; the device can be implemented by modifying and upgrading the conventional streetlamp, and is high in practicability, easy to implement and suitable for wide popularization.

The invention relates to an urban road electrostatic dust removal street lamp system which comprises a transformer substation and automatic dust removal street lamps uniformly arranged along an urban road at intervals, wherein the automatic dust removal street lamps are connected with the transformer substation after being connected in parallel; each automatic dust removal street lamp comprises a lamp body, an upright column, a photoelectric conversion mechanism and a garbage collecting mechanism; the upright column is hollow and vertically through, the shape of the upright column adopts a cuboid structure, the bottom end of the upright column is fixed nearby the road, and an automatic air guide mechanism, a self-cleaning high-voltage electrostatic dust collecting mechanism, a water circulating type dust cleaning mechanism and a power distribution box are arranged in the upright column from top to bottom in sequence; the photoelectric conversion mechanism is arranged at the top end of the upright column; the garbage collecting mechanism is arranged on the outer side of an upper port of the upright column; the power distribution box is positioned at the bottom of the upright column. The urban road electrostatic dust removal street lamp system provided by the invention is simple in structure and reasonable in design and effectively eliminates raised dust and haze in cities through effective and reasonable distribution nearby the urban road or in a community, thereby achieving the purpose of purifying urban air.

A working rod with a tip end extending into a vacuum process chamber and moving in the axial direction, two static-pressure gas bearings supporting the rod in the non-contact manner, and an internal moving body of a magnet coupling type driving mechanism driving the rod are housed in a rod housing cylindrical portion leading to the vacuum process chamber, and an exhaust portion by suction is provided at a part of the rod housing cylindrical portion so that the pressure of the rod housing cylindrical portion is lowered than the pressure of the vacuum process chamber by the exhaust from the exhaust portion.

An optical compensatory sheet producing apparatus produces an optical compensatory sheet having a liquid crystal layer. In the apparatus, a rubbing unit is supplied with resin film having a first layer including resin, and subjects the first layer to a rubbing process, so as to form an orientation layer. A dust remover removes dust from the orientation layer by use of liquid such as perfluorocarbon, to which the orientation layer is insoluble. A liquid crystal layer coater is disposed downstream from the dust remover, for coating the orientation layer with coating liquid including liquid crystalline compound, so that the liquid crystal layer is formed.

The invention provides an abrasive block for rail vehicles and a preparation method thereof. The abrasive block includes the raw materials: phenolic resin, potassium feldspar, barium sulfate, graphite, wollastonite, copper fibers, iron powder, alumina and sepiolite; by adjusting the composition and content of the abrasive block, the abrasive block functions of repairing wheel tread defects and out-of-roundness (namely polygon) are realized, and the fatigue state and hairline cracks of a wheel surface can be eliminated in time, so a stripping phenomenon on the wheel surface is avoided and high-frequency vibration between wheels and rails is eliminated.

An aqueous composition comprising water and high purity iron oxide preferably including a preservative is described. The composition is useful as a coloration ingredient in pharmaceuticals, cosmetics, foods, pet foods, and tobacco products which can be incorporated as a liquid conveniently into system of customers that desire a liquid high purity iron oxide ingredient or have been convinced to change from a dry high purity iron oxide ingredient to obtain the benefits of a liquid system.

The invention relates to the technical field of lithium battery cell piece stacking machines, in particular to a pole piece feeding device of a lithium battery cell piece stacking machine. During feeding of an existing lithium battery cell piece stacking machine, due to the fact that pole pieces are very thin and have static, the pole pieces adhere to one another frequently, the situation that a mechanical arm picks up multiple pole pieces at a time occurs, if the multiple pole pieces are stacked in a cell structure, serious battery faults will occur. In order to solve the problem, the pole piece feeding device of the lithium battery cell piece stacking machine can prevent adhesion of the pole pieces and effectively prevent the static and remove the static. The pole piece feeding device comprises a piece fetching mechanism, a material box for containing the pole pieces, and a jacking mechanism, wherein the piece fetching mechanism, the material box and the jacking mechanism are sequentially arranged on a rack from top to bottom. The piece fetching mechanism is used for grasping the pole pieces in the material box. The jacking mechanism is used for driving the pole pieces in the material box to move upwards. The pole piece feeding device is characterized in that brushes and ion air knives are further arranged on the rack and located on the edge of a material box opening, and the ion air knives are located below the brushes.

The invention discloses a tower crane with water spray and dust prevention functions. The tower crane comprises a crane body. The crane body comprises a fixed supporting frame, a rotary control room, a cantilever lazy arm and a winch trolley mechanism. The bottom end of the rotary control room is fixed to the fixed supporting frame. One end of the cantilever lazy arm is connected with the rotary control room. The winch trolley mechanism is arranged on the cantilever lazy arm. The lower end of the winch trolley mechanism is connected with a hook assembly. A water storage tank is arranged at the upper end of the cantilever lazy arm. The bottom end face of the cantilever lazy arm is provided with a plurality of sprinkler heads. The outer frame wall of the fixed supporting frame is also provided with a plurality of sprinkler heads connected with the water storage tank. In this manner, water can be sprayed outwards in a scattered manner through the sprinkler heads on the fixed supporting frame, the sprinkler heads on the cantilever lazy arm can be used for carrying out 360-degree rotating water spray, and therefore the water spray range is widened, and raising dust on construction sites is eliminated.

The invention discloses a method for producing active carbon for gasoline vapor adsorption. The method comprises the steps of: taking other wood material containing carbon as raw materials, and taking zinc chloride, phosphoric acid and the like as activating agents, and mixing, kneading, extruding, drying, activating, soaking and conducting other steps to prepare a finished product. According to the method disclosed by the invention, bulk specific weight can be improved effectively, namely the weight adsorption amount of the carbon is improved, so that the gasoline adsorption amount of the active carbon for gasoline vapor adsorption can be improved to be 16g/100ml; the displacement volume is improved to be 9g/100ml; the working volume of an adsorption plant is reduced; the application range is expanded; the abrasive resistance of the active carbon for gasoline vapor adsorption is improved to be over 93%; mechanical wear of the active carbon in the using process is reduced; the operating life is prolonged; the floating dust on the surface of the active carbon is basically removed; airflow resistance is reduced, and the method is not only used for gasoline vapor adsorption, but also suitable for recovery of benzene and high-boiling point solvents.