557 results about "Metal dust" patented technology

The invention provides a welding fixture platform, relating to the technical field of auxiliary welding devices, in particular to environment improvement of a welding site. In the invention, the technical problems of the existing welding site is severe, fixture cost is high and utilization rate is low are solved. The platform comprises a table board, the table board is a three-dimensional flexible fixture plate structure, table board through holes which can contain welding slag and is used for locating the fixture are arranged on the table board, and a hopper which collects welding slags dropped into the through holes on the table board is arranged below the table board. The welding slag drops into through holes of the table board and is collected by the hopper, thus optimizing the work environment; fixture units are modularized, the unit modules are assembled into a required fixture when fixing welding parts, and the fixture is fixed in the through holes of the table board, thus improving utilization factor of the fixture. An air extractor can suck harmful gas and metal dust produced by welding from the through holes of the table board, thus purifying the air of the welding site and preventing human body from sucking harmful and toxic gas.

The invention relates to a method for cleaning, dedusting and descaling secondary equipment, in particular to a method for realizing live cleaning of secondary equipment. During live operation of the secondary equipment, live cleaning agents are used for flushing or spray-washing the secondary equipment through a cleaning device, and a recovery device is used for recovering dirt. On the premise that the secondary equipment is not powered off and does not stop running, various dirt such as dust, greasy dirt, moisture, salt, metal dust, carbon stains and the like on the surface and in a deep layer of the equipment can be safely and efficiently cleaned, high safety of high insulation, non-toxicity, non-combustibility, corrosion resistance and the like is achieved, and the gap of safely cleaning the secondary equipment in live operation in the prior art is filled. The method makes a great breakthrough, and has fine application prospect in the field of secondary equipment maintenance.

The invention discloses a conductive plastic material which comprises (by weight ratio) the following materials (by weight percent): carbon black, conductive substance consisting of metal dust and conductive high polymers 10-50%, plastic resin 40-70%, filler 5-10% and auxiliary agent 5-10%. The invention also discloses the process for preparing the material.

The invention provides a special cleaning agent for insulators, which comprises the following components in percentage by mass: 1 to 20 percent of polyethyleneglycol octyl phenyl ether, 1 to 20 percent of nonylphenol polyoxyethylene ether, 1 to 3 percent of dichloromethane, 5 to 20 percent of C5H2F10, 10 to 30 percent of C3HCl2F5, and 5 to 15 percent of C2Cl3H3. The invention also provides a preparation method for the special cleaning agent for the insulators, which comprises the following steps: filling the components into a closed container according to the proportion, and reacting the mixture for 1 hour under normal pressure at the temperature of between 20 and 30 DEG C. The cleaning agent has the advantages of non environment pollution, low erosion, strong physical decomposition capacity and safe and reliable use, and can quickly and thoroughly clean various insulators, deep dust, oil stain, impregnated carbon, salinity, moisture and metal dust and various charged particles, effectively eliminate 'flexible fault', ensure the optimal working state of equipment and reduce the maintenance cost.

The invention discloses a metal dust pollution on-line monitoring device for an insulator. The metal dust pollution on-line monitoring device for an insulator comprises a state monitoring device, a wind speed and wind direction sensor, a rainfall sensor and a temperature and humidity sensor, wherein the wind speed and wind direction sensor, the rainfall sensor and the temperature and humidity sensor are connected with the state monitoring device; the state monitoring device includes a microcontroller, a data storage unit and a dust concentration sensor; the data storage unit and the dust concentration sensor are connected with the microcontroller; the state monitoring device is also connected with a system power supply and a GPRS/3G communication module; the GPRS/3G communication module is connected with a background monitoring center and the system power supply; and the wind speed and wind direction sensor, the rainfall sensor and the temperature and humidity sensor are connected with the microcontroller. The metal dust pollution on-line monitoring device for an insulator solves the problems that a leakage current method in the prior art is easily interfered by electromagnetism so that misdeclaration and declaration failure is easy to occur, or a fiber salt deposit density monitoring method cannot reflect the accumulated degree of metal dust for the special environment of steel works, and cannot accurately monitor the pollution degree of an insulator of the steel works. The invention discloses a monitoring method by using the metal dust pollution on-line monitoring device for an insulator.

The invention belongs to the filed of cleaning and leveling of strip steel, in particular to a non-contact roll cleaning method for a dry planishing mill. The non-contact roll cleaning method for the dry planishing mill is characterized in that: 1) a first dust suction hood and a second dust suction hood are arranged on a roll gap of an upper working roll and a lower working roll on the outlet side of the dry planishing mill in the flying direction of metallic dust, and suck away the metallic dust, wherein the first dust suction hood is positioned above a strip steel passing line, and the second dust suction hood is positioned below the strip steel passing line; and 2) a third dust suction hood is arranged on a roll gap of the upper working roll and an upper intermediate roll on the inlet side of the dry planishing mill in the flying direction of the metallic dust, and suck away the metallic dust; and a fourth dust suction hood is arranged on a roll gap of the lower working roll and a lower intermediate roll on the inlet side of the dry planishing mill in the flying direction of the metallic dust, and suck away the metallic dust. The method can improve the surface quality of strip steel and cleaning of the rolls and avoid surface damage to the rolls.

The invention relates to a coal natural gas methanation technology and a system thereof. The problems that in the existing methanation technology, system operation reliability awaits improvement, reaction temperature and reaction balance control is hard, catalyst service life is short, and a metal dust reaction is easy to happen are solved. The coal natural gas methanation technology comprises the steps that purified gas from an upstream purifying device sequentially passes four series-connection methane reactors, a number2 boiler water supply preheater and a number2 separator to obtain synthetic natural gas, the purified gas and boiler supplied water which is supplied at intervals are sprayed by an ejector in a mixed mode, then the temperature of the purified gas rises to 280-350 DEG C through a purified gas preheater, and the purified gas and steam after separation through a number1 separator are mixed and then sent to the four series-connection methane reactors. The technology is simple, device operation and investment cost is low, energy is saved, the environment is protected, and the system is high in operation stability, long in service life of catalysts, and good in heat energy recovery effect.

The invention discloses a dust removal device for spring production. The dust removal device comprises a dust removal chamber, a dust collection hopper and an air inlet, wherein an air inlet pipe is arranged at the bottom of the air inlet; an air blower is arranged on the air inlet pipe; the air inlet pipe penetrates through the air blower; one end of the air inlet pipe is connected with the dustremoval chamber; a control panel is arranged at the left middle of the dust removal chamber; a first filter screen and a second filter screen are arranged on the left and right sides of the top of thedust removal chamber respectively; a dust falling port is formed in the bottom of the dust removal chamber; a valve A is arranged on the dust falling port; an air outlet is formed in the middle of the right side of the dust removal chamber. According to the dust removal device disclosed by the invention, relatively large metal dust particles are subjected to primary filtration through the firstfilter screen and the second filter screen in the dust removal chamber; adsorption settlement is formed at the moment of sufficient contact between metal dust and water through a water storage tank atone end of the air guide pipe, thus, thorough removal of the metal dust is facilitated, the using effect of the dust removal effect is improved, and the dust removal device is relatively practical and suitable for wide popularization and application.

A process for depositing a substantially pure, conformal metal layer on one or more substrates through the decomposition of a metal-containing precursor. During this deposition process, the substrate(s) is maintained at a temperature greater than the decomposition temperature of the precursor while the surrounding atmosphere is maintained at a temperature lower than the decomposition temperature of the precursor. The precursor is dispersed within a transport medium, e.g., a vapor phase. The concentration of the metal-containing precursor(s) in the vapor phase, which also contains liquid therein, can be at a level to provide conditions at or near saturation for the metal precursor(s). In ensuring the aforementioned temperature control between the transport media and substrate, and in maintaining saturation conditions for the transport media, the quality of the deposited metal thin film is markedly improved and the production of by-product metal dust is greatly reduced or substantially eliminated.

The invention discloses a method for recovering valuable metal from high-impurity-content copper-contained materials through double-top-blowing smelting. The method comprises the steps of mixing high-impurity-content copper concentrate with quartz sand flux, coal, returned charge and/or returned dust in a matched mode, directly adding the mixture to a top-blowing smelting furnace, blowing oxygen into the smelting furnace for smelting, and feeding obtained mixed melt into a sedimentation electric furnace to obtain electric furnace slag and high-impurity-content copper matte through sedimentation and separation; conducting water quenching on the high-impurity-content copper matte to obtain copper matte particles; mixing the high-impurity-content copper matte, the quartz sand flux, the coal and refining slag in a matched mode, adding the mixture into a top-blowing converting furnace, and blowing oxygen into the converting furnace for converting to obtain blister copper and converting slag; mixing the electric furnace slag with the converting slag according to the weight ratio of 3:1-5:1, feeding the mixture into a slag mineral separation system to recover copper concentrate; placing the blister copper into an oxygen-rich combustion type anode furnace to be refined, and conducting casting to obtain a copper anode plate. By the adoption of the method, the adaptability of smelting equipment to the copper-contained materials such as the high-impurity-content copper concentrate can be improved, valuable metal in the high-impurity-content copper concentrate or/and the high-impurity-content copper matte can be effectively recovered, valuable metal dust contained in smoke generated during smelting can be effectively recovered, the technology is simple, and environment pollution is light.

The invention discloses a grinding device for hardware. The grinding device comprises a supporting plate and a grinding platform. The grinding platform is fixedly mounted above the supporting plate through supporting rods. A through opening located under the grinding platform is formed in the supporting plate. A drain tank located at the bottom of the through opening is further movably arranged at the bottom of the supporting plate. An air-drying device is fixedly mounted on the rear side of the grinding platform and comprises an air blower and an air collection hood. An air opening of the air blower is fixedly connected with an air inlet of the air collection hood through a ventilating duct. A cleaning device is mounted on the left side of the grinding platform, and a grinding mechanism is mounted on the right side of the grinding platform. The grinding device for the hardware is simple in structure and reasonable in design, the rotating speed of a grinding wheel can be adjusted according to the hardness degree of different hardware materials, metal dust on the surface of the ground hardware can be cleaned out, the cleaned hardware is air-dried, and the efficiency of the whole hardware machining process is improved.

The invention discloses a device for collecting aluminum and magnesium powder generated by polishing, grinding and wiredrawing. The device comprises an operating platform, fine grid filter screen baffles, a large particle collecting device, a small particle collecting device, a fan and a low voltage fine mist device, wherein the table board of the operating platform consists of a grid of large aperture; the large particle collecting device is arranged below a middle area of the working platform and is used for collecting large particles; the fine grid filter screen baffles are distributed at three sides of the operating platform, are connected with the small particle collecting device through a ventilating pipe and are used for collecting fine and easily-floating metal powder generated caused by grinding and blocking larger metal particles; one end of the low voltage fine mist device is connected with the small particle collecting device, and the other end of the small particle collecting device is connected with a tap water pipe; the low voltage fine mist device is used for preventing a condition that powder explosion is formed by the raising and suspending of the fine metal powder. According to the device provided by the invention, the aluminum and magnesium powder generated by polishing, grinding and wiredrawing can be effectively prevented from being diffused in the air, the possibility of the powder explosion can be reduced, and the environment of operating personnel in manufacturing shops can be improved.

The invention provides a coil-embedded dust magnetic core and its manufacturing method, wherein the strength of the compact dust body is enhanced, when a terminal electrode is processed by bending, no crack is generated on the compact dust body. The coil embedded in the compact dust magnetic core possesses the following: the compact dust body of strong magnetic metal dust, wherein a hollow coil is embedded; a terminal electrode, which possesses a connection terminal portion connected with the edge portion of the hollow coil in the compact dust body and a terminal portion protruding to the outside of the compact dust body for external connection, wherein the terminal portion of the terminal electrode is bended along the surface of the compact dust body, and is accommodated at the surface of the compact dust body to form a terminal accommodation concave portion, and the connection terminal portion of the terminal electrode is positioned in the thick wall portion of the compact dust body wherein no terminal accommodation concave portion form.

The invention discloses a cutting device with an automatic cleaning function, and relates to the technical field of mechanical equipment. The cutting device comprises a box. A first partition plate is fixedly connected between the two sides of the inner wall of the box. The top of the first partition plate is fixedly connected with a first motor. An output shaft of the first motor is fixedly connected with a first rotation shaft through a coupler. The end, away from the first motor, of the first rotation shaft is fixedly connected with a first belt wheel, and the surface of the first belt wheel is in transmission connection with a second belt wheel through a first belt. The axis of the second belt wheel is fixedly connected with a screw shaft, and the surface of the screw shaft is in threaded connection with a movable block. According to the cutting device with the automatic cleaning function, metal dust generated after cutting can be rapidly washed away, a sprayer has an adjusting function, dust at every place of a machine can be washed away, the surface of the machine can be rapidly blown dry after washing, and the machine has a very good automatic washing and dust removing function.

The invention is a method of separating metals such as zinc, lead and cadmium from iron in secondary feed stocks such as EAF Dust, BOF Sludge, mill scale, iron fines, tire dust and other iron and zinc containing residues and dusts. The method includes the steps of reduction roasting the feed stocks at a volatizing temperature sufficient to volatilize the zinc and other metals into metal fumes but insufficient to volatize iron and then collecting the metal fumes as a metal dust. The metal dust is then leached with a leaching liquid to form a leach liquor and a leach residue. The leach liquor is then purified by zinc dust cementation to form a purified liquor and a zinc dust cement residue. The purified liquor is then separated from the zinc dust cement residue, and a zinc recovery step is then performed on the purified liquor.

The invention discloses a flexible package battery lug welding method. To achieve the purpose, the technical scheme adopted by the invention is that the flexible package battery lug welding method is characterized by comprising the following steps: firstly, respectively fixing positive plate exposed aluminum lug foil and negative plate exposed copper lug foil by using an aluminum piece and a nickel piece, secondly, cutting the positive plate exposed aluminum lug foil and the negative plate exposed copper lug foil, and finally welding an aluminum strip adhesive lug and a nickel strip adhesive lug on the cut positive plate exposed aluminum lug foil and the negative plate exposed copper lug foil in an ultrasonic manner. By adopting the flexible package battery lug welding method, the manufacturing cost of a flexible package battery is reduced, the metal dust pollution caused by ultrasonic vibration is reduced, the pass percent of the battery is increased, the charge/discharge property of the battery is improved, and the welding effect of the battery lugs is improved.

The invention discloses an electromagnetic type metal dust collecting device including a tank body, the bottom portion of the tank body is provided with rollers, the tank body is connected with a dust-suction inlet through a metal hose, a V-shaped pipeline is arranged in the tank body, and the inflection point of the pipeline faces down; the pipeline is provided with a fan, one end of the pipelinecommunicates with the metal hose, the other end of the pipeline is connected with an air filter element, and the inflection point position of the pipeline communicates with a metal dust collecting tank; and the lower end of the metal dust collecting tank extends out of the bottom of the tank body, a dust-discharging valve is arranged below the metal dust collecting tank, the pipeline wall is composed of electromagnets and is connected with a power supply through a guiding line, and power-on and power-off of the pipeline is controlled by a switch. Compared with the prior art, the electromagnetic type metal dust collecting device has the beneficial effects that the collecting of the metal dust can be completed, the preliminary classification can also be performed, and the hygiene of the work environment can be ensured.

The invention discloses a high-low-voltage switch cabinet having a dust removing function. The high-low-voltage switch cabinet comprises a switch cabinet body which is horizontally arranged, wherein an installation empty cavity is formed inside the switch cabinet body, a bracket is arranged on a side wall of the switch cabinet body, a support is arranged inside the bracket, an axial flow fan is arranged on the support, the bracket is provided with a ventilation net on the outer side of the axial flow fan, the surface of the ventilation net is provided with a plurality of magnets, and a plurality of air outlets are formed in the switch cabinet body. the high-low-voltage switch cabinet is simple in structure and convenient in operation, can reduce temperature inside the switch cabinet, prolongs the service life of the switch cabinet, has a function of absorbing metal dust, greatly reduces the metal dust entering into the switch cabinet, ensures the normal operation of internal electrical components, avoids safety problems of causing short circuit and the like, is stable and reliable in operation, and reduces costs.

The invention discloses iron plate punching equipment which comprises a bracket. The middle of the bracket is provided with a motor base. The top of the motor base is connected with a motor. The bottom of the motor base is connected with a telescopic cylinder. The bottom of the telescopic cylinder is connected with a punching plunger chip. A fixing block is connected with each of the two sides of the bottom of the bracket. The bottoms of the fixing blocks are connected with supporting columns. The bottoms of the supporting columns are connected with suction discs. The two sides of the bracket are each provided with a telescopic stand column. The bottoms of the telescopic stand columns are provide with a worktable. The middle of the worktable is provided with a dust collection trough. An inner cavity of the dust collection trough is provided with an iron core. The surface of the iron core is connected with a coil in a winding mode. The bottom of the coil is connected with a power supply. The right side of the coil is provided with a switch. By adoption of the iron plate punching equipment, metal dust in the air is reduced and prevented from affecting physical health conditions, deviation cannot occur when the punching plunger chip punches an iron plate, and the punching quality of the iron plate is improved.

The invention discloses selective laser sintering and melting equipment which comprises a sealing forming bin, a laser galvanometer arranged outside the sealing forming bin, a lens arranged on the surface of the sealing forming bin and used for enabling the laser projected from the laser galvanometer to enter the sealing forming bin, a part machining platform arranged in the sealing forming bin, a powder paving scraper used for paving powder on the machining platform, an annular gas curtain device fixed to the inner wall of the sealing forming bin and corresponding to the lens, and a gas source used for providing gas for the annular gas curtain. According to the selective laser sintering and melting equipment, a cone high-speed gas curtain wall can be formed around the inner surface of the lens, a clean space is formed around the inner surface of the lens, and metal powder in the forming bin can be effectively prevented from adhering to the surface of the lens. Meanwhile, the lens is prevented against dust and cooled through inert gas in the forming bin during the machining process of the equipment, so that a large amount of inert gas is saved, and the production cost is lowered.