32329results about How to "Improve cleanliness" patented technology

A powered toothbrush to provide oral hygiene having a brush section with a first bristle carrier that is powered and driven to rotate in an oscillating manner through a prescribed angle. A second bristle carrier is pivotally connected to the first bristle carrier and also pivotally connected to the brush section. The second bristle carrier oscillates in accordance with the oscillation of the first bristle carrier in a sectorial manner. The bristle carriers may include a variety of elastomeric and non-elastomeric bristles or combinations thereof to provide cleaning, polishing, whitening and stimulating to the teeth and gums.

A heat-insulating container comprises a paper cup body having an inner surface, an upper open end, a shell member and a bottom, the inner surface being coated with polyolefine resin, the upper open end having an outward curled portion and the shell member having a side wall on which at least one rib is formed; and a tubular member being formed of paper and having an inverse truncated conical shape, the tubular member having at a lower end thereof an inward curled portion. The tubular member is combined with an outer periphery of the paper cup body so as to come into contact with the paper cup body in contact portions provided on the at least one rib of the paper cup body and on an outer periphery of an lower end of the side wall of the shell member. According to such a structure, it is possible to provide the heat-insulating container, which has a stable heat-insulating property, a high grade design, a high degree of freedom in indication by printing on the outer surface of the container, and a lower production cost.

A powder recycling system includes a powder feeder, a remaining powder collector, a bridge breaker, a block powder filter, a cyclone separator, a particulate filter cleaner, an air pressure generation device and an electrostatic precipitator. The powder feeder provides a construction powder to a construction platform. The remaining powder collector for collects the remaining powder. The cyclone separator is used to separate the large-size powdery particles and the small-size powdery particles of the remaining powder from each other through a rotating gaseous stream. The large-size powdery particles fall down to the powder feeder due to gravity, and the small-size powdery particles of the remaining powder is removed from the rotating gaseous stream and transmitted to the particulate filter cleaner. After the small-size powdery particles of the remaining powder are filtered by the particulate filter cleaner, the suspended small-size powdery particles are transmitted to the electrostatic precipitator.

The invention relates to a method for sterilization of an air conditioner and the air conditioner. The method comprises the steps that the air conditioner is started, an indoor unit is in a heating operation mode, and the surface temperature T0 of a heat exchanger of the indoor unit is increased to be larger than a sterilization temperature threshold T, and is kept for the time t. According to the invention, after the air conditioner is started, the indoor unit conducts heating operation, and the surface temperature of the heat exchanger of the indoor unit is increased to be larger than the sterilization temperature threshold, and is kept for a certain time, so that bacteria in the air conditioner can be killed, and the cleanliness of the indoor unit of the air conditioner can be improved. In addition, in order to improve the sterilization effect of the air conditioner, before the indoor unit conducts heating operation, water can be added to the surface of the heat exchanger of the indoor unit, and/or the indoor unit can be in a dehumidification mode so as to generate condensation water on the surface of the heat exchanger of the indoor unit; and then the added water or the generated condensation water is converted into high-temperature steam in the indoor unit when the indoor unit conducts heating operation, and rapid sterilization is achieved.

The invention discloses a handheld dust collector with a bracket. The dust collector comprises a handheld dust collection device and the bracket, wherein the handheld dust collection device comprises a shell provided with a handle, a suction fan and a dust collection box which are arranged inside the shell, and a dust suction head which is connected to the shell in a separated mode; a cover, which can be opened and closed, is connected to the shell, and the dust collection box can be taken out of the shell when the cover is opened; a convex connecting block is arranged on the outer wall of the shell; the cover is rotatably connected to the connecting block; the bracket comprises a base, a brace rod with lower end connected to the base and a supporting frame connected to the upper end of the brace rod; the shell and the supporting frame are connected in a separated mode; a locating groove, which is matched with the connecting block, is formed in the supporting frame; and the connecting block is located in the locating groove when the shell and the supporting frame are connected.

The invention relates to the ventilation system field, in particular to an efficient automatic dust-removing and intelligent ventilation system and an automatic dust-removing method. The system comprises an intelligent energy-saving ventilation system housing component and a fan, wherein the intelligent energy-saving ventilation system housing component comprises a dual duct, a dust-discharging duct, a throttle actuating mechanism, a dust screen, a temperature and humidity sensor and a distributed pressure sensor, wherein the temperature and humidity sensor and the distributed pressure sensor are connected with a control system, and the control system drives the throttle actuating mechanism to realize time-sharing and smooth transition of the dual duct and the dust-discharging duct. The beneficial effects of the invention are as follows: the fans of the air feeder unit can be used for several purposes such as air supply and dust removing, thus reducing the equipment cost; the self-cleaning of the filtering screen can be realized, thus prolonging the service life of the filtering screen, reducing replacement frequency and lowering maintenance cost; and by turning on/off the automatic dust-removing and intelligent ventilation system, the normal operation of the devices in an equipment room can be ensured.

A semiconductor device production system using a laser crystallization method is provided which can avoid forming grain boundaries in a channel formation region of a TFT, thereby preventing grain boundaries from lowering the mobility of the TFT greatly, from lowering ON current, and from increasing OFF current. Rectangular or stripe pattern depression and projection portions are formed on an insulating film. A semiconductor film is formed on the insulating film. The semiconductor film is irradiated with continuous wave laser light by running the laser light along the stripe pattern depression and projection portions of the insulating film or along the major or minor axis direction of the rectangle. Although continuous wave laser light is most preferred among laser light, it is also possible to use pulse oscillation laser light in irradiating the semiconductor film.

The invention provides an automatic cleaning device of a brush roller of a combing machine and a method for cleaning the same. The method comprises the following steps that: the upper side of the brush roller of the combing machine is provided with a dust hood which is connected with a draft fan through an air duct; the front part of the brush roller of the combing machine is provided with a brush roller cleaning mechanism; sundries which are attached on the brush roller of the combing machine are cleaned by contacting the brush roller cleaning mechanism with the surface of the brush roller of the combing machine. The automatic cleaning device of the brush roller of the combing machine and the method for cleaning the same are designed based on the principles of automation, cleaning and actual effect, which improve greatly work efficiency of an equipment maintainer so that the work must be done originally by two persons, but now the work can be done by one person after the brush automatic cleaner is used. Compared with the brush which is cleaned by persons, the brush which is cleaned by the brush automatic cleaner is cleaner, and the brush hair is straighter; and after the brush is operating, the state of cleaning the circular comb by the brush is improved greatly.

After a polishing process of polishing a glass substrate with an abrasive containing lanthanoid oxides, the glass substrate is subjected to the first and second washing processes. In the first washing process, the polished substrate is washed with a washing solution containing acid and a reducing agent, wherein the acid includes at least nitric acid. In the second washing process, the washed substrate is treated with an aqueous solution of an alkaline detergent. The substrate is suitable for a recording medium.

The invention discloses a producing method of clean steel, which can further enhance the cleanliness and comprise the following steps of: pretreating with molten iron for desulfurizing until [S] is not more than 0.010%; then delivering to a converter for smelting; dephosphorizing and controlling sulfur; controlling finished molten iron in the converter to be with [P] of not more than 0.0080% and [S] not more than 0.010%; adding a ladle slag modifying agent to ladles in a steel tapping process for regulating and modifying the ladle slag, wherein after treating, in the molten iron, [P] is not more than 0.0060% to 0.0080%, [S] is not more than 0.0080% and roughing slag quantity is not more than 0.5%; controlling refined finished slag components in LF (Low Frequency) refining, wherein soft argon blowing time of the molten iron is not less than 5 minutes after LF refining, and the composition is qualified when [S] is not more than 0.0020%; carrying out VD (Vacuum Degassing) refining to ensure that [H] is not more than 1.5ppm; and continuously casting, wherein a double-layer high-alkalinity covering agent is adopted as a middle ladle, a seal ring and a long water gap are additionally arranged for argon-blowing protective casting, which is carried out at constant speed, and overheat delta T of the molten iron ranged from 15 DEG C to 30 DEG C. Under the condition that the producing cost is not increased basically, the cleanliness of the clean steel is further enhanced by the control of each procedure junction point, and the clean steel comprises the following components by weight percent: S not more than 20ppm, P not more than 100ppm, TO not more than18ppm, H smaller than 2.0ppm, N not more than 35ppm, and A, B, C and D types of impurities not more than 0.5 grade.

The invention is concerned with simulation diamond end face polishing-grinding machining method and the expert polishing-grinding machining. Set stuff and put molding plastics-absorption tray on fixture tray and make the concave face of plastics-absorption tray upside, and the simulation diamond adsorbs on the convexity of the bottom to plastics-absorption tray. Set plastics-absorption tray on the polishing-grinding machining and mill the tine end of simulation diamond on calm millstone. The polishing-grinding machining relates rack with a level millstone at its middle, and there are two level trays. They are centrosymmetric to the axis of millstone on top of millstone and have plastics-absorption tray on them. There is up and down equipment for tray on top of level tray which connecting with two turning axes on two sides of millstone with level rack, and the other end of turning axis has running equipment of turning axis. It has large machining amount of each time, high produce efficiency, good ratio to excellent stuff, long work time, easy operation without waste of material.

The invention provides a method for preparing high base number (TBN400) synthetic calcium alkyl-benzene sulfonate. The method comprises the following steps of: adopting a mixed acid of long-chain linear alkyl-benzene sulfonic acid and high-boiling heavy alkyl-benzene sulfonic acid, calcium oxide and/or calcium hydroxide, low-carbon alcohol, alkaline-earth metal halide or nitrate, and a mixture of alkaline-earth metal alkylphenol or alkaline-earth metal alkylphenate and polyisobutylene succinic anhydride for a neutralization reaction in the presence of a solvent and cutback oil at a temperature of between 40 and 80 DEG C; then, passing through carbon dioxide to a product of the neutralization reaction at a temperature of between 40 and 60 DEG C for a carbonation reaction; and producing high base synthetic alkyl-benzene sulfonate with a total base number (TBN) of 400mgKOH/g by adopting a process of a one-step method. The product is divided into high-base number (TBN400) synthetic alkyl-benzene sulfonate containing chlorine and high-base number (TBN400) synthetic alkyl-benzene sulfonate without the chlorine. The product produced by adopting the method with low viscosity, small turbidity, easy filtration, light color and no skin formation has the advantages of excellent high-temperature detergency, excellent anti-foaming property and excellent heat storage stability.

The invention discloses an ultrasonic cleaner and belongs to the field of mechanical equipment cleaning. The ultrasonic cleaner solves the problems that cleaning fluid in an existing ultrasonic cleaner cannot remove impurities in time, and the cleaning fluid is wasted. The ultrasonic cleaner comprises a rack (1), an ultrasonic generator (2), a cleaning tank (3) and ultrasonic vibrators (4). A water circulation device is arranged on the outer side of the cleaning tank (3) and comprises an overflow tank (5) arranged on one side of the cleaning tank (3). The water circulation device further comprises the overflow tank, an oil contamination tank (7), a water storage tank (8), a water pump (9), a filter (10) and a water injection tank (11). The bottom of the water injection tank (11) is communicated with the cleaning tank (3). The bottom of the cleaning tank (3) is an inclined plane. The ultrasonic cleaner integrates the functions of heating, ultrasonic waves, circulating filtration, oil-water separation and article movement, the cleaning speed is high, and the cleaning effect is good; besides, the ultrasonic cleaner is multifunctional, low in energy consumption and capable of prolonging the replacement cycle of the cleaning fluid and reducing environmental pollution, thereby being wide in application range.

The invention provides a supported polyphenylene sulfide (PPS) filter material which belongs to the field of filter materials. The supported PPS filter material is prepared by the following method: making a PPS fiber into a PPS filter material; performing water bath acidification in nitric acid, and washing with deionized water to neutrality; drying to obtain acidified polyphenylene sulfide nitride (PPSN); preparing a catalyst into a solution and stirring; soaking PPSN in the solution; performing water bath baking, and drying in air; and calcining in a nitrogen atmosphere to obtain the supported PPS filter material with denitration function. The denitration-catalyst-supported PPS filter material provided by the invention can be used as a dedusting agent and a denitration agent at the sametime, is prepared by simple steps, realizes dedusting and denitration functions as well, and has the advantages of high denitration rate, high temperature resistance, acid-base resistance, good waterresistance, long service life and the like; and a new application field of the filter-bag catalytic denitration is created.

The invention relates to a plasma rotary electrode powder milling set and a process thereof, relating to the technical field of powder metallurgy. The milling set comprises a rotating feeding mechanism, a vacuum furnace, a vacuum unit, a plasma gun device and an electrical source. The rotating feeding mechanism is arranged at the exterior of one side of the vacuum furnace; the plasma gun device is arranged at the interior of the other side of the vacuum furnace; the vacuum unit is communicated with the vacuum furnace through a ventilation pipe, wherein, the vacuum furnace body has a double-decker sandwich structure, and cooling circulating water is injected into the sandwich structure; a receiving mechanism is arranged at the bottom part of the vacuum furnace, wherein, the receiving mechanism comprises two cut-off valves connected in series. The process includes the following steps: metal is processed into electrode bars; low-voltage heavy current is applied to the electrode bars to melt the electrode bars in a highly vacuumized melting chamber through the high temperature produced by the cathode arc of the plasma gun, and to eject the molten metal instantly by the strong centrifugal force produced through the high-speed rotation of the electrode bars to produce fine metal powders. The invention is characterized in that the yield of perfect spherical metal powders is up to 97 percent, and the powders are free from the contamination of any microelement.

The invention relates to a chemical oxidation remediation method for organism-contaminated soil and a remediation device. The device comprises an oxidant pot, a catalyst pot, a chelating agent pot, aflexible pipe, an electric valve, a control apparatus, a valve switch, a pump, a flow valve, a reactor, a stirrer, a stirrer switch, a sealing cover, a liquid inlet pipe, an exhaust pipe, a gas-liquidseparating apparatus and a tail gas treating apparatus. The method comprises the following steps: placing contaminated soil into the reactor; firstly injecting 0.03-0.4mol/ (kg soil) of citric acid into the reactor through the chelating agent pot; then adding 0-0.4mol/ (kg soil) of catalyst ferrous sulfate in the catalyst pot, and adding water to be dissolved to prepare 0.5mol/l of catalyst; injecting the catalyst into the reactor by the pump; pumping 1-2mol/(kg soil) of oxidant hydrogen peroxide into the reactor; and fully stirring the three preparations and the contaminated soil by the stirrer in the reactor to oxidize and degrade polycyclic aromatic hydrocarbon in the soil, and the removal rate of pollutants in the soil exceeds 80 percent. The invention has high efficiency on organics-contaminated soil remediation and can not cause secondary pollution to the soil.