15253results about "Dirt cleaning" patented technology

A low depth telescoping downdraft ventilator controlled by an electronic controller providing a precisely controlled and efficient way of removing gases and fumes is disclosed. The low depth telescoping downdraft ventilator has the ability to fit behind a built-in oven placed below a cook top unit. The telescoping downdraft ventilator has an almost infinitely selectable range of heights above a cook top with a built in oven. The ventilator collects and draws in exhaust fumes and smoke, filters it and re-circulates or expels it either outdoors or indoors. The inner member of the telescoping ventilator may house the exhaust fans and may move up or down without the use of mechanical switches for elevation detection and stopping. The ventilator may have sensors to detect temperatures, filter change need, fan speeds, telescoping stop points, energy consumption, resistance and voltage, enabling programmable set point operation.

The present invention relates to arc welding torch and a method of extracting fume gas from a welding site. The torch comprises a metal electrode and at least one shield gas port adapted to direct a shield gas curtain around the metal electrode and a welding site. At least one shroud gas port is spaced radially outward from the shield gas port and adapted to impart to an exiting shroud gas a radially outward component of velocity. Fume gas is preferably extracted from a position radially intermediate the shield gas curtain and the shroud gas curtain.

The invention provides a system for restoring organic contaminated soil through in-situ electrical heating. The system comprises an infrastructure technology, an electronic control system, a gas treatment system, a monitoring and data acquisition system and a repairing effect comprehensive assessment system. The infrastructure technology comprises heating well and extraction well construction, ground compaction and insulating layer construction technologies; heating wells are distributed on a contaminated site according to a triangle arrangement principle and a proximity principle, and the extraction well is arranged in the geometric center of the layout of the heating well; the gas treatment system is composed of a pre-cooling adsorption sledge, an extraction sledge and a treatment sledge, and is used for completing gas extraction and treatment and achieving the tail gas discharging requirement; and the repairing effect comprehensive assessment system evaluates the temperature risingeffect of the contaminated soil in the restoring process and the treatment effect of the contaminated soil. According to the system, the technological route is complete, the soil property applicability is wide, the heating temperature can reach 500 DEG C or above, and volatile and difficult-to-volatilize organic contaminant can be treated at the same time.

A wireless particle collection system includes a dust collector and at least one power tool coupled to the dust collector. The power tool is associated with a unique identifier contained in a wireless signal transmitted from the power tool upon an activation event of the tool. The unique identifier is recognized by the dust collector, and the dust collector activates or de-activates upon receipt of the wireless signal.

An auxiliary dust collection system can be interposed between a sander or other dust producing tool and a vacuum source, e.g., shop vacuum. This auxiliary system has a cyclonic separator connected by a flexible hose to the tool and by another hose to the vacuum source. The cone of the separator is mounted onto the lid of a drum into which the dust precipitates. For a tool that has its own blower, the vacuum source can be omitted, and the air leaving the outlet duct of the separator can be filtered and returned to the ambient. A drop in silencer formed of a sleeve or tube of acoustic foam can be positioned into the inlet side of a filter cartridge following a cyclonic separator. The silencer absorbs a significant fraction of the process noise.

An automatic powder recycling apparatus includes a housing, a plurality of isolation elements, an air-blowing device, a powder filtering member, a recycling member and an air-inhaling device. A sealed space is defined within the housing. The air-blowing device is disposed within the sealed space for removing the powder attached on the surface of the finished product. The air-inhaling device is in communication with the first receptacle for allowing the first receptacle to be in a negative pressure state. When the powder on the finished product is removed by the air-blowing device and directed to the powder filtering member by the air-inhaling device, the powder is filtered and blocked by the powder filtering member. When the air-inhaling device is disabled, the powder blocked by the powder filtering member naturally falls down to the recycling member.

An airflow control valve for a clean room having a duct section with a damper positioned within the duct. The damper being capable of an adjustment from an open position to a closed position. The opening and closing of the duct is accomplished through a magnetic coupling such that the duct can remain sealed during operation. The airflow control valve includes a sensor for measuring the airflow rate, so that the duct can be adjusted to maintain one or more predetermined flow rate set-points.

A system for controlling dust during hydraulic fracturing operations includes a manifold having a plurality of ports for capturing dust when negative air pressure is applied to the manifold. A support frame positions the manifold above a piece of hydraulic fracturing equipment receiving sand from a sand source.

A portable enclosure, easily erectable and collapsible, to provide environment control and prevent contaminants from being released from the enclosure. The enclosure provides a flexible envelope attached to the interior of the space defined by vertical and horizontal supports which can be erected and collapsed. When erected the enclosure functions as an anteroom and has removable panels in the sides and top. In use, the enclosure is sealed against a vertical or horizontal surface to be worked on and a panel from the side of the enclosure is opened and closed to provide access to the surface by the user. When collapsed the enclosure is a package approximately the size of an average golf club bag which is easily portable to another location. Ducting is provided to which negative pressure pumps are connected to maintain negative pressure within the enclosure and draw contaminants into the pump and then into a closed container. In one embodiment, a four-sided flange extends from the rear side of the enclosure to allow sealing of the flange around the doorway and thereby provide a mechanism for isolating the room located interiorly of the doorway.

A range hood with a smoke deflector, comprises a body, a smoke collecting cover and the smoke deflector, wherein an air inlet is arranged on the smoke collecting cover, the smoke deflector faces to the air inlet and be in the predetermined distance from the smoke collecting cover, thus a oil smoke channel through which the oil smoke can pass is formed between the smoke deflector and the smoke collecting cover, the range hood is characterized in that the distance between the smoke deflector corresponding to the oil smoke channel and the smoke collecting cover is gradually reduced from the periphery of the smoke deflector to the air inlet. Compared with the prior art, the invention has the advantages: the smoke deflector is used for forming the wall-attachment effect, the oil smoke flow uniformly without series flow, the distance between the smoke deflector and the smoke collecting cover is gradually reduced from the periphery of the smoke deflector to the air inlet, so that the Venturi effect is formed conveniently, thus accelerating the sucking of smoke by the blower fan.

A ventilation member having: a breathable film transmitting gas passing through an opening portion of a housing in a state in which the breathable film is fixed to the opening portion; and a support including a supporting portion for supporting the breathable film and an insertion portion to be inserted into the opening portion of the housing; wherein a lock structure for locking the support in the housing by rotating the support around a central axis of the support is formed in the insertion portion.

A method of reducing silicosis caused by inhalation of silica-containing proppant, such as silica sand and resin-coated silica sand, and apparatus therefor.

The invention discloses a bearing washer, which comprises a main body workbench, a washing chamber arranged on the main body workbench, a spraying pump and a drive motor, wherein the main body workbench is provided with an inlet-outlet path of the washing chamber; the inlet-outlet path is provided with a feed-discharge trolley; the inlet-outlet path is connected with an inlet-outlet cylinder; an upper spraying pipe is arranged at the top position in the washing chamber, and a lower spraying pipe is arranged at the bottom position in the washing chamber; the feed-discharge trolley is provided with an inner stationary fixture, an outer stationary fixture and an upper drive carriage, and the inner and outer stationary fixtures can adjust and clamp a large-size bearing; a rotary spindle, which can be jointed with the centre of the inner stationary fixture, is arranged at the top position in the washing chamber; and the rotary spindle is connected with the drive motor. The bearing washer has the advantages of reducing intermediate links, automatically completing the whole process of product washing, effectively washing dead corners in the products, greatly improving the cleanness of the product, along with high automation, high washing efficiency, low operation and labor intensity, quick, convenient and flexible clamping and fixing operation and complete washing.

A robotic drilling apparatus is described which has been adapted for drilling holes in ceilings and walls on a construction site. The apparatus (100) comprises a robotic arm (110) mounted to a substructure (112), the substructure comprising a lifting mechanism arranged to lift the robotic arm to a working position, wherein the robotic arm has a base end (110a) and a movable end (110b), the base end being mounted to an upper surface (114) of the lifting mechanism and the movable end being capable of movement with respect to the base end in a three dimensional space, wherein the robotic drilling apparatus further comprises a mount (120) provided on the movable end for holding a drilling device (122) and a control unit (134) for controlling the operation of the robotic arm. The lifting mechanism preferably comprises a scissor-jack lifting platform. The robotic arm (110) and any support structure (134) for the robotic arm weighs less than 43 kg, and preferably individually weigh less than 23 kg.

Embodiments of the present invention are directed to a customizable bio-manufacturing system which includes a manufacturing space having a first air handling system for providing supply air and a second air handling system for handling exhaust air, the supply air system being optionally provided with at least one of filtration, heating, cooling and or humidity control and a plurality of portable modules provided within the manufacturing space. At least one module having an interior capable of being interconnected with another module interior and each module's interior includes one or more components to perform at least one specific task of a biological, chemical, and/or pharmaceutical manufacturing process. At least one module includes an on-board environmental control system for controlling an environment within the module and a connection means for interconnecting the module interior with another module interior. The system also includes a central controller operating to at least perform one or more of operation and information collection for the operation of at least one of the system and one or more modules.

A device for processing medicinal materials for the production of decoction pieces of traditional Chinese medicine with the function of dust removal and drying, comprising a shell, a through hole is opened in the middle of the top of the shell, and a lifting plate passes through the through hole, and the upper left side wall of the lifting plate is fixedly connected There is a rack, and the top of the housing on the left side of the lifting plate is fixedly connected with two support frames, and the top of the support frame is rotatably connected with a first rotating shaft, and one end of the first rotating shaft is fixedly connected with the output shaft of the first motor, and the first rotating shaft The upper part is fixedly connected with a half gear, and half of the gear teeth are arranged on the half gear, and the half gear is meshed with the rack. The invention has the beneficial effects of ensuring the uniformity of slice thickness, making the processing quality of medicinal materials better, meeting the requirements of production specifications, reducing the quality instability during manual slicing, and having certain application value; at the same time, it can also be processed The adsorption of dust ensures the life safety of the operators; the drying device is used to fully dry the sliced ​​medicinal materials.

An auxiliary exhaust structure and method therefor are used to exhaust a pollution source of a workstation. The auxiliary exhaust structure includes an exhaust hood and an air feeder. The exhaust hood disposed corresponding to the workstation has a suction port for sucking the pollution source and a deflector extending along the periphery of the suction port for guiding the pollution source. The air feeder generates air flows flowing along the deflector towards the suction port for guiding the pollution source. Therefore, during the exhausting of the pollution source, the gathering effect of the pollution source flowing to the exhaust hood is enhanced and thereby the pollution source is easier to be trapped.

A suction system in a laser device for the bonding of prosthesis parts in dental technology formed of an annular suction nozzle that concentrically surrounds the laser focusing unit or an annular nozzle encircling the latter for the introduction of protective inert gas. The lower rim of the laser focusing unit or the annular nozzle for the supply of protective gas projects beyond the annular suction nozzle by 10 to 25 mm.