312results about How to "Reduce air" patented technology

An apparatus and method are disclosed in which ultrasonic vibration is used to assist the degassing of molten metals or metal alloys thereby reducing gas content in the molten metals or alloys. High-intensity ultrasonic vibration is applied to a radiator that creates cavitation bubbles, induces acoustic streaming in the melt, and breaks up purge gas (e.g., argon or nitrogen) which is intentionally introduced in a small amount into the melt in order to collect the cavitation bubbles and to make the cavitation bubbles survive in the melt. The molten metal or alloy in one version of the invention is an aluminum alloy. The ultrasonic vibrations create cavitation bubbles and break up the large purge gas bubbles into small bubbles and disperse the bubbles in the molten metal or alloy more uniformly, resulting in a fast and clean degassing.

Use of a viscosity increasing component (ii) in provided in a composition (i) of a diesel fuel for the purpose of: improving the vehicle tractive effort (VTE) and/or acceleration performance of a compression ignition engine or a vehicle powered by such an engine, into which engine the composition (i) is introduced, or mitigating decrease in the vehicle tractive effort (VTE) and/or acceleration performance, in the case of a diesel fuel composition (i) to which an additional component (iii) is introduced for the purpose of improving the emissions performance, of a compression ignition engine or a vehicle powered by such an engine, into which engine the composition (i) is introduced.

A sucker includes a sucker body having a rough suction layer which includes a plurality of protrusions which are juxtaposed to each other closely, and a plurality of grooves defined between the protrusions. When the rough suction layer presses an attached face and is disposed at a negative pressure state, the sucker body is pressed toward the attached face by a normal force from the ambient air, so that the rough suction layer is compressed, and the grooves form multiple independent negative pressure or vacuum zones, to increase a negative pressure of the rough suction layer, to decrease air existing in the rough suction layer, and to reduce a vacuum leak in the rough suction layer, so as to increase an air-tightness between the rough suction layer and the attached face.

Disclosed herein is a disposable cap for an eye imaging apparatus with an optical window and related methods. The disposable cap can comprise an optically transparent window cover, a ridge, a side wall and a locking element. The window cover can comprise a convex back surface to match a concave shape of the optical window. The ridge of the disposable cap can extend distally and radially outward from the window cover and the side wall can extend proximally and radially outwardly from the ridge. The locking element can comprise one or more radially inward projections and one or more radially outward releasing tabs. A disposable packaging shell of the disposable cap also disclosed. Disclosed herein is also a plug-in disposable system comprising the disposable cap and the disposable packaging shell, configured to enable the disposable cap to be attached to and detached from the eye imaging apparatus.

A connector for connecting a terminal end of a heating duct to a heating duct board, the connector including an annular cylindrical portion with an outer surface and a maximum outer diameter and a flange extending radially outwardly from the outer surface of the annular cylindrical portion. The flange has a dimension greater than the maximum diameter forming an abutment against which a lower edge of the heating duct board abuts. The flange also has at least one sleeve for receiving a zip tie. The connector includes retention means for securing the connector to the heating duct board with the heating duct board encircling the annular cylindrical portion and being in abutting engagement with the flange. The retention includes at least one zip tie mounted through the at least one sleeve of the flange and engageable in a mouth of the heating duct board to which the connector is secured.

The invention belongs to the technical field of wastewater treatment, and particularly relates to a method for treating coking wastewater. The invention provides the method for treating the coking wastewater, which has the advantages of simple operation, low cost and good treatment effect and can directly discharge effluent. The invention adopts the following technical scheme that (1) various wastewaters in a factory are discharged into a horizontal oil isolating tank through sewage pipelines, the oil isolating tank is provided with an oil scraper which periodically removes floating oil on thesurface, and the effluent of the oil isolating tank enters an air floating system for oil removal; (2) the effluent of the air floating system automatically flows into a wastewater mixing regulationtank to balance the water quality and water quantity; (3) the effluent of the mixing regulation tank enters a VTBR biological oxidation tower through a lift pump to be treated, most of COD is removed,phenol, cyanogen and other harmful substances are removed, and nitrogen is removed through nitration and denitrification; (4) the effluent enters a secondary sedimentation tank; and (5) the effluententers a sand filter and an active carbon adsorption device, then enters an ultra-filtration and reverse osmosis apparatus, and is discharged after reaching the standard.

The invention provides an automatic tying technology for edible fungus bags comprising following steps: 1. loading a fungus bag and placing the fungus bag in an automatic tying machine, wherein the fungus bag is made stand vertically and fungus sticks are clamped by the automatic tying machine; 2. the fungus bag mouth is clamped by a manipulator through moving downwards for some distance and then the manipulator moves downwards further to press the fungus in the fungus bag; 3. the manipulator moves upwards and clamps the fungus sticks and then slides to the right to place the fungus sticks in the tying machine; after a tying plate is tightly clamped, the manipulator moves upwards for some distance and then ties the fungus bag; 4. the tying plate in the typing machine is released and the manipulator is released and then the fungus sticks are popped up. According to the technology, when the fungus sticks are clamped, the manipulator presses the fungus sticks to compact the fungus in the fungus bag and expel air in the fungus bag; then the fungus sticks are lifted up and placed in the tying machine and the tying plates in the tying machine are folded, and then the manipulator lifts the fungus sticks; in this way, air in the fungus bag is expelled which guarantees that the fungus sticks are compacted after tying and air inside the fungus sticks is expelled.

The invention provides a film blowing machine with an improved winding mechanism. Th film blowing machine comprises an extrusion mechanism, a film blowing mechanism, a traction mechanism and the winding mechanism. The film blowing mechanism comprises a die head, an air ring and a rack. The air ring is arranged on the die head. The die head and the air ring are fixedly arranged at the lower end of the rack. The traction mechanism is arranged at the upper end of the rack. The extrusion mechanism is provided with a discharge outlet connected with the die head. The winding mechanism comprises a winding shaft, a belt and a motor, wherein the winding shaft is used for winding thin films. The motor is in transmission connection with the winding shaft through the belt. The thin films blown out from the die head are conveyed to the winding shaft through the traction mechanism. A press shaft capable of pressing the thin films is arranged above the winding shaft. The winding mechanism further comprises a support frame and elastic suspended arms. The press shaft is connected to the support frame through the elastic suspended arms. According to the film blowing machine with the improved winding mechanism, deviation of the thin films in the winding process can be avoided, and dislocation of an upper layer and a lower layer of a thin film is prevented.

The invention belongs to the field of polytetrafluoroethylene functional material manufacturing, and particularly relates to a process for manufacturing high-strength low-elongation polytetrafluoroethylene filaments. The process comprises the steps that disperse polytetrafluoroethylene granules are processed in a low-temperature oil supply mode, cured and subjected to vacuum compression molding, material strips are extruded in a pushing and pressing mode, a thin film is obtained through compression, longitudinal heating stretching is conducted twice, the thin film is slit into flat filaments, the flat filaments are twisted into round filaments, heating stretching and forming are conducted on the round filaments, and the PTFE filaments of different specifications are manufactured. The filaments manufactured through the process meet the ideal indexes of high strength and low elongation, thereby being an improvement and breakthrough in the quality of polytetrafluoroethylene filaments.

The invention discloses a thermoforming method of a co-woven continuous fiber reinforced thermoplastic structural plate. The method comprises: first co-weaving prepreg into sheet or band prepreg on a braiding machine; spreading the prepreg on a die and conducting sealing with a vacuum bag or a polyester film; then raising the temperature, carrying out vacuum pumping to maintain a vacuum negative pressure, when the temperature reaches the melting point of thermoplastic resin, preserving the heat for a period of time, then performing cooling for molding; finally dismounting the vacuum bag or the polyester film so as to obtain a structural plate. The structural plate produced by the co-weaving method can expel air among the internal layers of the prepreg. Pressure is transmitted uniformly through fibers, so that shift in fiber direction can be avoided, and the structural plate also can be reinforced based on original enhanced fibers, thus substantially saving cost.

The invention relates to a speed oil filling device for a pulse generator of a wireless inclinometer and a using method thereof, wherein the oil-filled device comprises a vacuum pump, an oil tank, an oil inlet pipeline and an oil outlet pipeline; the oil tank is internally provided with a suction pipe, an oil filling pipe and an oil charging pipe, wherein the suction pipe is connected with the vacuum pipe, and the communication is controlled by a third valve; the oil filling pipe is connected with the oil inlet pipeline, and the communication is controlled by a first valve; and the oil charging pipe is connected with the oil outlet pipeline, and the communication is controlled by a second valve; the lower end of the suction pipe is provided with a fourth valve for controlling the communication between the oil tank and the atmosphere; the ports of the oil inlet pipeline and the oil outlet pipeline are respectively provided with fast insertion type oil filling plugs; and each valve is in seal connection with the corresponding pipeline via a quick screwing type fast plug. The speed oil filling device provided by the invention has excellent sealing performance; a single-hole oil filling method or a double-hole oil filling method is provided; the air remained in an oil bag of the pulse generator is reduced as possible; and the oil is fast and conveniently filled in the pulse generator.

The invention discloses a waterless and environment-friendly manure collection toilet storing urine and shit separately. A bottom box is arranged; containers for storing urine and shit are arranged in the box; a box door is arranged on one side of the box, defecating and urinating openings and covers are arranged on an upper plate of the bottom box; a urine collection funnel is arranged below the urinating opening; an exhaust pipe and an exhaust fan are arranged at the upper part of a side plate of the bottom box; an upper surrounding plate and a switch door are arranged above the bottom box; steps are arranged beside the bottom box below the switch door; a ventilation fan is arranged at the upper part of the upper surrounding plate; peripheries of box plates and the door of the bottom box are sealed, and peripheries of the covers of the defecating and urinating openings are also sealed; sealing covers controlled by switches are arranged at upper ports of the containers for storing urine and shit, and the covers of the defecating and urinating openings are sealing covers controlled by switches; a front pedal indicating platform, a rear pedal indicating platform and a pedal switch are arranged on the upper plate of the bottom box; and plastic bags are arranged in the containers for storing urine and shit, and a seat support and a disinfecting deodorant sprayer are also arranged on the upper plate of the bottom box. The waterless and environment-friendly manure collection toilet is suitable for construction sites, country areas, water-deficient areas and even water-deficient cities, the structure is simple and complete, the use is convenient, the cost is low, and functions of saving water, protecting environment and collecting manure are particularly prominent.

The invention belongs to the field of preparation of polytetrafluoroethylene functional materials and provides a manufacturing technology of high-strength low-elongation polytetrafluoroethylene filaments to solve the problems that the PTFE (polytetrafluoroethylene) filaments produced in the prior art generally are of low strength and excessively high elongation. The manufacturing technology includes: low-temperature oil treatment, curing treatment, compression molding, strip extruding, thermal elongating, slitting, filament manufacturing, and drawing and setting. The high-strength low-elongation polytetrafluoroethylene filaments are of strength up to 48-52 CN/tex and elongation at break, only 6% to 10%, the ideal indexes, high strength and low elongation, are achieved, and improvement and breakthrough on the quality of the polytetrafluoroethylene filaments are made; by the use of vacuum compression molding, the air in formed plastic is greatly reduced, the semi-finished products are higher in density and uniformity, and the manufacturing technology plays a key role in improving the quality of products made by the following pushing and rolling process.

The invention discloses a feeding assembly and a coating device. The feeding assembly comprises a storing container (100), an air bag (200), a first connecting pipe (300) and an air pressure pump (400). The storing container (100) is provided with a container cavity (101) used for storing coating, and the container wall of the storing container (100) is provided with a discharging opening (102) and an air guiding hole (103) which both communicate with the container cavity (101). The air bag (200) is made of a flexible material, arranged in the container cavity (101), used for blocking communicating of the container cavity (101) and the air guiding hole (103), and provided with a bag cavity (201) used for storing air. The air guiding hole (103) communicates with the bag cavity (201), and the first connecting pipe (300) is arranged in the container cavity (101) and is in butt joint with the discharging opening (102). The air pressure pump (400) is used for conducting inflation/air exhaust on the bag cavity (201) through the air guiding hole (103). When the feeding assembly needs to stop feeding, the situation of continuous overflowing of the coating cannot occur.

The invention discloses a swirling flow premixing type burner. The swirling flow premixing type burner comprises a first burner brick, a second burner brick, a burning-supporting air chamber, an air swirler and a fuel gas nozzle, wherein a central hole is formed in the first burner brick; an upper section of the central hole is matched with the shape of the exterior outline and the dimension of the second burner brick; a lower section of the central hole is a cone-shaped hole with a large upper end aperture and small lower end aperture; a premixing chamber is arranged in a central part of the second burner brick; the fuel gas nozzle is a swirling flow nozzle and consists of a nozzle body and a gas inlet pipe which is connected with the nozzle body; the first burner brick is arranged on a furnace body; the second burner brick is arranged in the first burner brick; the air swirler is positioned at the inlet of the premixing chamber arranged in the second burner brick; the fuel gas nozzle is combined with the air swirler; the nozzle body of the fuel gas nozzle is positioned below the air swirler; and the burning-supporting air chamber is arranged on the furnace body.