118results about How to "Reduce corrosion damage" patented technology

The invention provides a high-efficient non-corrosive hydrate inhibitor, relating to the technical field of oil-gas hydrate. The hydrate inhibitor is a mixture of an anti-agglomerant and a urea or a calcium nitrate and is used at the pressure of 1.5 to 25 MPa and at the temperature of minus 20 DEG C to 25 DEG C. The hydrate inhibitor overcomes the defects of the prior art, reduces the nucleary, the growth and the coalescence speed of hydrate after being filled in petroleum fluid in production or conveying by mixing at low concentration and has the characteristics of wide application, low cost and no corrosion to pipelines.

The invention discloses an oilfield sewage and boiler flue gas mixed-bath two-way purification device, belonging to oil production equipment. The oilfield sewage and boiler flue gas mixed-bath two-way purification device comprises a mixed-bath distillation tower and a heat-exchange separator, and is characterized in that the oilfield sewage and the boiler flue gas are in mixed-bath to achieve flue gas treatment and purification through sewage cleaning, purified water can be obtained by condensing after evaporating by flue gas residual heat, and the circulation of heat can be realized through heating power transfer of a water carrier. Compared with the prior art, the oilfield sewage and boiler flue gas mixed-bath two-way purification device has remarkable advantages of being mature in application technology, wide in use range, improved in usage facilities and equipment, simple and convenient as well as feasible in improvement, production and matched assembly, good in energy-saving effect, low in cost, high in comprehensive utilization capability, good in benefits and the like, thus having good popularization and application values.

The invention provides a casing of a loudspeaker. The casing comprises a first housing and a reinforcing steel part, wherein the first housing is provided with a first accommodation space, the reinforcing steel part comprises a body and a supporting connecting plate which extends from the body, the reinforcing steel part and the first housing are formed integrally, the first housing comprises an accommodation hole and a cavity which is communicated with the first accommodation space, the body is arranged corresponding to the accommodation hole, one end of the supporting connecting plate is embedded inside the first housing, and the other end of the supporting connecting plate extends to a position of the cavity. In the casing of the loudspeaker, the integral reinforcing steel part is formed by an injection moulding technology, and the supporting connecting plate of the reinforcing steel part is directly embedded inside the first housing, so that the integral appearance is flat and attractive, the probability of corrosion damage of the reinforcing steel part is greatly reduced, and the reliability of a product is improved. Simultaneously, the invention also provides the loudspeaker using the casing and a manufacturing method of the casing.

The invention provides a high-efficiency and environmentally-friendly hydrate inhibitor, and relates to the technical field of oil-gas hydrates. The hydrate inhibitor is a mixture of a dynamic inhibitor, nitrate and acetate. The suitable pressure of the hydrate inhibitor is 1 to 25MPa and the suitable temperature is between -25 and 25 DEG C. The inhibitor can overcome the defects of the prior art; the inhibitor at low concentration is mixed and injected into petroleum and natural gas fluid for production and transportation, so that the speed of nucleation and growth of the hydrate is reduced, the inhibiting effect and the application range of the hydrate inhibitor are greatly increased, and the hydrate inhibitor has the characteristics of wide applicability, economy, high efficiency and environmental protection.

The invention relates to the technical field of oil mist filtering equipment and in particular relates to an oil mist recycling machine. The oil mist recycling machine comprises a rack, wherein the rack is provided with a shell body; an inlet is formed in one side of the shell body; the shell body is internally provided with a first-grade filtering device for carrying out first-grade filtering on oil mist, a second-grade filtering device for carrying out second-grade filtering on the oil mist, a third-grade filtering device for carrying out third-grade filtering on the oil mist and a driving mechanism; the driving mechanism is in driving connection with the third-grade filtering device; a collection device is arranged at the lower end of the third-grade filtering device. According to the oil mist recycling machine provided by the invention, the effects of filtering the oil mist for a plurality of times, carrying out odor removal treatment and cooling, liquefying and recycling the oil mist can be realized through the first-grade filtering device, the second-grade filtering device and the third-grade filtering device. An external working environment is effectively purified and corrosion damages, caused by the oil mist, to the equipment are reduced; damages, caused by the oil mist, to human bodies are reduced; the atmospheric environment is protected.

The invention discloses a method for producing alcohol by molasses, which comprises the following steps: (1) diluting molasses for the first time; (2) preparing an enzyme preparation; (3) adding the enzyme preparation prepared in step (2) into the diluted molasses in step (1), mixing to prepare a molasses solution containing the enzyme preparation; (4) diluting the molasses solution in step (3) with water to obtain a brix of 38 BX-46 BX; (5) preparing distiller's yeast mash; (6) performing mixed fermentation of the diluted molasses solution prepared in step (4) and the distiller's yeast mash prepared in step (5) to obtain matured mash; (7) distilling the matured mash to obtain alcohol. By adding the enzyme preparation during the fermentation process, the method for producing alcohol by molasses of the invention saves production cost, increases the liquor content of the fermented matured mash, reduces the residual sugar content of the matured mash, reduces the difficulties for alcohol distillation and waste water treatment, is safer in operation when compared with traditional methods with sulfuric acid addition, and reaches the purposes of energy saving, emission reduction, and consumption reduction.

The invention discloses a novel rigidity landfill anti-permeation structure and a construction method. The anti-permeation structure comprises a first cavity and a second cavity. The first cavity is formed through closing of a flexible anti-permeation structure, and the flexible anti-permeation structure is located in a closed cavity of a first rigidity anti-permeation structure. The second cavityis located below the first cavity, the second cavity is formed through closing of a second rigidity anti-permeation structure, and the lower surface of the second cavity is coated with an anti-permeation coating. During anti-permeation structure construction, two layers of rigidity anti-permeation structures are formed from bottom to top, and the closed flexible anti-permeation structure is arranged in the upper-layer rigidity anti-permeation structure. Multiple anti-permeation systems are formed by the anti-permeation structure and can effectively prevent environment pollution accidents caused by local structure damage; and through the arrangement of an overhauling observation layer, the abnormal condition of a rigidity landfill can be observed in time, the repairing measure is taken intime for treatment, and abnormal condition enlarging is avoided.

The invention provides a method for preparing small-fraction filling composite masterbatch through a semi-open type superheated steam spray-drying method. The technological method is used for preparing rubber nanocomposites through wet mixing and is less in energy consumption, safe and simple in technology. Rubber latex is selected and used for being mixed with filler slurry, a certain quantity of rubber auxiliary is added and stirred to be uniform, an obtained mixture is dried through a semi-open type superheated steam spray tower at a certain feed rate, the nano composite rubber masterbatch is prepared and collected and passes through a sieve plate, and blocks are formed after rolling is conducted. The method is simple in technology, complete in reaction, safe, free of hidden dangers, less in energy consumption and capable of reducing cost; human factors are few, continuous production can be achieved, the product quality is stable, industrial research is easy, and green and environmental protection is achieved. By means of the rubber masterbatch produced through the method, inorganic filler can be uniformly dispersed in a rubber matrix in a nano-scaled mode, and the rubber masterbatch can be applied to the fields such as saloon car tread rubber and engineering tread rubber.

The invention discloses a construction method for repairing a ground deformation joint. The construction method comprises the steps that the surface layer of concrete is broken and removed; a water stopping wall is built; desilting is conducted, and leaking stoppage is conducted; the joint is filled with swelling water stopping strips, interface treatment is conducted, steel bars are embedded, anupturned beamn steel bar is arranged, a first grouting pipe is pre-buried, a first polyethylene foam plastic board is arranged, an upturned beam form board is arranged, and interface glue is smeared;a cement-based grouting material is grouted, maintenance is conducted, and the mold is removed; a first steel board water stopping belt is arranged, a beam steel bar, a second grouting pipe, box ironand angle iron are additionally installed, and a newly added beam form board is arranged; the cement-based grouting material is grouted, maintenance is conducted, and the mold is removed; an L-shapedsteel board is arranged, and grouting is arranged; a second polyethylene foam plastic board, a second steel board water stopping belt and a third steel board water stopping belt are arranged, non-solidified pitch is grouted, and a cover board is arranged; and a spray drain is arranged. The construction method protects the water stopping facility components so as to reduce corrosion damage to the deformation joint by arranging the multiple water stopping components, arranging the upturned beam and additionally installing the beam reinforcing deformation joint area, the water stopping and draining effects are good, and the quality of the deformation joint is improved.

The invention discloses a gel rust remover for aerugo of a gilding layer. The gel rust remover comprises the following components by weight percentage: 1.0-4.0% of carbomer 940, 1.0-4.0% of polyvinyl alcohol 1799, 0.01-0.05% of weak base, 0.005-0.015% of borax, 0.005-0.015% of weak acid, 0.005-0.015% of cysteine and the balance of water. The rust remover gel is colorless and transparent, is of acidity, and has the characteristics of water-retaining property and slow release property. A cultural relic contact type green cleaning procedure can be realized by controlling the release speed of cleaning components, Cu (I) and Cu (II) can be cleaned away at the same time, aerugo, such as ruby copper, malachite and azurite, covering the gilding layer can be effectively removed, the surface of a culture relic is free of pollution, and the gel rust remover is suitable for cleaning complex surfaces. The preparation process and use method of the gel rust remover are simple, corrosion damage caused by the fact that the rust remover is diffused on the gilding layer during wet cleaning can be reduced, and the principle requirements of minimum involvement and no appearance change of cultural relics are met.

The present invention concerns a process and a plant for treating ore concentrate particles containing valuable metal and having at least arsenic and sulfur containing components. The process comprises a two-stage roasting process comprising a first roasting step (1) made in a first roasting reactor (16) and a second roasting step (3) made in a second roasting reactor (17). A gas mixture is formed from the first process gas component (2) obtained from the first roasting step(1)and from the second process gas component (4) obtained from the second roasting step (3). Post combustion of the gas mixture is made in a post combustion chamber (6). The post combustion operates with said reducing and sulphide rich first process gas component (2) and the second process gas component (4) as oxidizer gas in order to decompose SO₃ in the gas mixture to reduce the SO₃ content. The risk of accretion formation and corrosion in the post combustion chamber and in subsequent steps is reduced. Finally the exit gas (7) is exposed to sub sequent gas cooling and dust removal steps (8 to 11).

The invention relates to an aquaculture net cage elevating adjusting device and a gravity aquaculture net cage in open sea areas. A water storage floating bin and a water storage sinking bin of the aquaculture net cage elevating adjusting device communicate with each other to form a communicating vessel through a communicating pipe; the water storage floating bin communicates with the water storage sinking bin through a first water pipe and a second water pipe; the first water pipe controls a switch through an electromagnetic valve; a submersible pump is arranged in the water storage sinking bin; and the submersible pump is connected to the second water pipe, and fresh water in the water storage sinking bin can be sent to the water storage floating bin through the submersible pump. Multiple anchor cables of the gravity aquaculture net cage in open sea areas are distributed along the circumferential direction of a net cage body; the gravity aquaculture net cage in open sea areas corresponding to each anchor cable is provided with the aquaculture net cage elevating adjusting device; and the water storage floating bin of each aquaculture net cage elevating adjusting device is arrangedon the corresponding anchor cable, and the water storage sinking bin corresponding to each anchor cable is arranged at the bottom of the net cage body. The gravity aquaculture net cage can ensure thelong-term reliability of elevating adjustment of the gravity aquaculture net cage, and is simple in structure.

The invention relates to an electrical method treatment apparatus for increasing the concentration multiple of circulation water. According to the electrical method treatment apparatus, electrode members contain alternating electrodes (5), a grounding electrode (6) and a grounding protection cover (7), wherein a group comprising at least the two alternating electrodes (5) is arranged inside the barrel-like grounding protection cover (7), and the grounding protection cover (7) is connected with the grounding electrode (6); and control members contain an oscillation circuit module (1), a power supply (2), a control circuit module (3) and an output module (4), wherein the power supply (2) and the control circuit module (3) are connected, and the control circuit module (3), the oscillation circuit module (1) and the output module (4) are connected. With the electrical method treatment apparatus, the concentration multiple of the circulation water in the prior art can be increased to more than 1 time; the pollution discharge of the circulation water is reduced by more than 1/2; the hardness, the conductivity and the turbidity of the circulation water are reduced by more than 30%; and the chloride ions are always less than the standard of 300 mg/L so as to substantially reduce the corrosion caused by increase of the chloride ions.

The invention discloses a spot welding ultrasonic B scanning automatic detection device and a method. The device comprises an industrial mechanical arm, wherein the industrial mechanical arm is arranged on the top part of a mechanical arm fixing seat; a detecting device for ultrasonic B scanning detection is arranged on the head part of the industrial mechanical arm, is located right above a detection platform, and is connected with an ultrasonic detector; the ultrasonic detector is connected with an industrial computer; the industrial mechanical arm is connected with a controller for controlling the mechanical arm to act; the detection device is connected with a coupling agent circulation supply system for feeding a coupling agent. The device is simple in structure, high in applicability,and capable of realizing ultrasonic automatic detection on spot welding quality of complex automobile parts; according to the method, through an ultrasonic B scanning local immersion method, dimension information of a welding spot and a welding core is acquired, and the welding spot quality is evaluated, so that the welding spot detection efficiency is improved, and the corrosion damage on the parts is effectively reduced.

The invention relates to a modified asphalt and provides the modified asphalt with high viscosity and high elasticity, in order to solve the problem of reduction of durability of pavement. According to the technical scheme, the modified asphalt with high viscosity and high elasticity contains the following components in parts by weight: 100 parts of asphalt, 10-15 parts of butadiene styrene rubber, 20-40 parts of volcano fiber, 0.5-1.5 parts of cross-linking agent and 5-10 parts of oil. 'Structural asphalt' is formed by adding the volcano fiber; the volcano fiber has excellent heat-insulatingeffect and physical properties, so that viscosity and heat insulation of the modified asphalt are promoted; the modified asphalt is reinforced, so that the asphalt layer is difficult to crack and deform and the service life of the modified asphalt is prolonged.

The invention relates to a chemical agitation reaction kettle, comprising a kettle body and a kettle cover, wherein the kettle body and the kettle cover are connected by a flange; a feeding hole is formed in the kettle cover, a discharge hole is formed in the bottom of the kettle body, an agitation device and a heating device are arranged in the kettle body, the agitation device is connected with a power output shaft of a motor on the kettle cover, agitation blades of the agitation device are spiral agitation blades, the heating device is an electric heating tube, the electric heating tube is spirally wound round the agitation blades of the agitation device, an agitation shaft of the agitation device is provided with a rectangular agitation frame in the structure of 'ri' ('ri' is a Chinese character, meaning sun), and the agitation frame is arranged along the inner wall of the kettle cover and the bottom of the kettle body. According to the chemical agitation reaction kettle, the mixing uniformity of materials is improved, the corrosion damage of the materials on the inner wall of the reaction kettle is reduced, the reaction kettle is more convenient to clean, and the service life of the reaction kettle is prolonged.

The present invention relates to the technical field of preparation of liquid for de-icing and anti-icing of outer surfaces of aircrafts and particularly relates to a preparation method of low-temperature anti-adhesive aircraft de-icing and anti-icing liquid. Potatoes are used as a raw material; the potatoes are treated to obtain delignified fibers; a nitric acid solution is added to activated carbon mixed liquid to obtain modified activated carbon mixed liquid; microcrystalline fiber powder, supernatant, propylene glycol, etc. are heated and mixed; at the same time, ammonia gas is introduced;and after a reaction is finished, the materials are discharged to obtain the low-temperature anti-adhesive aircraft de-icing and anti-icing liquid. The microcrystalline fiber powder extracted with the potatoes as the raw material is fibers liable to soften at normal temperature. During the process of freezing on the surfaces of the aircrafts due to low temperature, the low-temperature anti-adhesive aircraft de-icing and anti-icing liquid can prevent crystal particles from forming large ice crystals and avoid formation of ice blocks. In addition, the microcrystalline fibers present rigid molecular chains at low temperature, can avoid production of hydrated gel of the propylene glycol, ethylene glycol, etc. in the aircraft de-icing and anti-icing liquid at a low freezing point, and reducescorrosion of the aircraft surface metals by the aircraft de-icing and anti-icing liquid. The aircraft de-icing and anti-icing liquid has broad application prospects.

The invention discloses a foaming releasing system for manufacturing a gypsum board head and a use method of the foaming releasing system and belongs to the field of gypsum board production. The foaming releasing system comprises a foaming agent storage tank, a foaming agent conveying pump, an emulsification pump, a three-way joint, a mixing and stirring machine, an electromagnetic valve, a belt conveyor and a pipeline. The foaming agent storage tank is communicated with a feeding port of the foaming agent conveying pump through the pipeline. A discharging port of the foaming agent conveying pump is communicated with a feeding port of the emulsification pump. A discharging port of the emulsification pump is connected with one port of the three-way joint through a pipeline. The other two ports of the three-way joint are communicated with one end of the electromagnetic valve and a feeding port of the mixing and stirring machine respectively. The feeding end of the belt conveyor is arranged at a discharging port of the mixing and stirring machine. The other end of the electromagnetic valve is provided with a discharging port. The use method of the foaming releasing system includes the step that after the foaming agent conveying pump and the emulsification pump are started, the electromagnetic valve is started in a cyclic mode. According to the foaming releasing system for manufacturing the gypsum board head and the use method of the foaming releasing system, due to the fact that the electromagnetic valve is controlled, a material spraying process is omitted, and the board head is shortened.