30results about How to "Does not increase processing difficulty" patented technology

The invention relates to a method for treating low-concentration ammonia-nitrogen wastewater or feed liquid. The steps include: firstly, pretreating low-concentration ammonia-nitrogen wastewater or feed liquid to remove impurities in the waste water or feed liquid; The pH is adjusted to between 6 and 7.5, and the surface tension is increased to 40mN / m or even above 65mN / m; then, zeolite is used to selectively adsorb the pretreated low-concentration ammonia nitrogen wastewater or feed liquid, so that the adsorbed wastewater or feed The average concentration of ammonia nitrogen in the liquid is less than the predetermined value. When the average concentration of ammonia nitrogen in the waste water or feed liquid after adsorption treatment reaches the predetermined value, the regeneration liquid is used to regenerate the zeolite to obtain a regeneration liquid rich in ammonia nitrogen; The regeneration solution of ammonia nitrogen enters the gaseous membrane separation device for deamination treatment; finally, the regeneration solution from which ammonia nitrogen is removed is concentrated to obtain a recyclable regeneration solution. The method not only has simple operation, low energy consumption and low operation cost, but also has no secondary pollution, and is economical and environment-friendly.

The invention relates to an insert-type injection pipe joint. The insert-type injection pipe joint comprises an insert and a pipe main body part, wherein the pipe main body part comprises a combination part and a connecting part; the combination part is fixedly connected with the connecting part in an airtight manner; the insert is connected with the connecting part in a sleeving manner; the insert-type injection pipe is characterized in that an annular bulge is arranged on the outside wall of the insert; the annular bulge surrounds the periphery of the outer surface of the insert; a groove which corresponds to the annular bulge is formed in the inside wall of the connecting part; the groove surrounds the periphery of the inside wall of the connecting part; the annular bulge is embedded into the groove; the contact area between the insert and the connecting part can be increased by embedding the annular bulge into the groove, so that the combination strength of the pipe joint can be improved; the insert is combined with the pipe main body part in an injection mode, and the machining difficulty cannot be increased because of the thickness of the wall of the insert.

The invention discloses a fresh air device and an air conditioner with the same. The fresh air device includes: a volute assembly, the volute assembly has an installation cavity, and the volute assembly is provided with a volute air inlet communicating with the installation cavity; a sealing cover, the sealing cover is arranged on one side of the volute assembly , and the sealing cover cooperates with the volute assembly to form an air inlet cavity, and the air inlet cavity communicates with the installation cavity through the volute air inlet; the filter screen assembly, the filter screen assembly is arranged in the air intake cavity and is located at the At the air inlet of the volute, the filter assembly includes: a filter screen and a fixing frame for fixing the filter screen; wherein: the fixing frame is provided with a sound-absorbing side wall, and the sound-absorbing side wall is provided with a first microporous structure , the sound-absorbing side wall cooperates with the volute assembly and the sealing cover to form a sound-absorbing chamber. In the present invention, the noise reduction structure is arranged on the fixing frame of the fresh air filter net, and injection molding is integrally formed, without adding additional parts and installation procedures, and reducing production costs.

The invention discloses a pretreatment process for processing regenerated polyester staple fibers by using waste polyester bottle flakes, relates to the technical field of regenerated polyester staple fibers, and comprises the following steps: (1) two-stage crushing, (2) cleaning, (3) Drying, (4) micronization. The waste polyester particles obtained after the pretreatment process of the present invention can be directly used in the processing of regenerated polyester staple fibers, so as to avoid affecting the subsequent processing technology due to incomplete cleaning of dust and oil stains; and the obtained waste polyester particles belong to the micropowder level , which is conducive to the subsequent blending or reaction processing with other materials to make polyester staple fibers.

The invention relates to a method for repairing a plunger of a ship steering engine, in particular to a method for repairing the plunger of the ship steering engine, which is particularly suitable to the repair of the plunger of the ship steering engine for a sea ship. The method sequentially comprises the following steps: preprocessing, spraying, brush plating, bath plating, simulating and examining, and accepting. The invention not only can fully repair the plunger of the ship steering engine to meet total repair requirements, but also can not damage original metallographic structures and base materials of the plunger of the ship steering engine without causing welding distortion, can not increase the processing difficulty of the plunger of the ship steering machine and can not influence the subsequent bath chromium plating process of the plunger of the ship steering engine after the repair, and is convenient for field maintenance.

The invention provides a corner-turning emitter. The corner-turning emitter comprises an emitter body and an emitting head, wherein primary power media are arranged in an inner cavity of the emitter body, the emitting head is arranged at the front end of the emitter body, and a thermal insulation layer is arranged between the emitting head and the emitter body; secondary power media and a triggering structure used for receiving a triggering control command to trigger the secondary power media are arranged in the inner cavity of the emitter body; at least one ejection channel is arranged on the emitting head in the circumferential direction; one end of the ejection channel communicates with the secondary power media, and the other end of the ejection channel penetrates to an ejection channel outside the side face of the emitting head. The problem of striking precision lowering caused by the fact that an emitter is easily obscured by a shelter in the prior art is solved.

This invention discloses a method for identifying on-line SFP electric modules, which connects the first and second test pins of a SFP module in short-circuit, when a control unit of a monoboard the SFP module places tests that the module has been plugged in the monoboard, said method includes the following steps: A, the control unit transmits a preset test signal to the first test pin of the SFPmodule by the pin of its own transmitting test signals, B, the control unit receives the fed back signals from the second test pin of the module by its pin receiving test signals and judges if said fed back signal is the preset signal, if so, it judges that the SFP module plugged in the monoboard current is an electric module, otherwise, it's not.

The invention discloses a method for removing salt and pepper noise. The method comprises the following steps: carrying median filtering on an input noise image; differentiating a median filtering result and the input noise image and determining noise candidate points based on the differentiating result; carrying out edge detection on the median filtering result to obtain edge minutiae; eliminating the edge minutiae with differential absolute values less than a first threshold value in the noise candidate points, thus obtaining a real noise point; and carrying out local median filtering on the real noise point, thus forming a de-noised image subjected to salt and pepper noise removal. Correspondingly, the invention also provides a device for removing the salt and pepper noise. The device comprises a noise candidate point acquiring module, an edge minutia acquiring module, a real noise point acquiring module and a local median filtering module.

The invention discloses a filtering aid for vibrating, slagging and filtering oil materials in edible oil processing and relates to the technical field of edible oil processing. The filtering aid is prepared from the following raw materials in parts by weight: 10-15 parts of microcrystalline cellulose, 5-10 parts of modified polyvinylpolypyrrolidone, 3-5 parts of cinerite, 2-3 parts of polyethylene oxide, 2-3 parts of lotus leaf powder, 2-3 parts of allyl glycidyl ether, 1-2 parts of polyvinyl alcohol resin, 1-2 parts of sepiolite fiber, 1-2 parts of diallyl dimethyl ammonium chloride, 0.5-1 part of tributyl citrate, 0.5-1 part of sodium gluconate and 0.5-1 part of nanometer titanium dioxide. The filtering aid disclosed by the invention can be used for obviously increasing the filtering efficiency of a vibrating slagging filter and prolonging the service life of a filter screen; the difficulty in treating the discharged wastewater is not increased; the filtering aid is mixed with the filtering residue and is removed by filtration.