47results about How to "Play a coordinating role" patented technology

The invention relates to a low-tension polymer microsphere profile control and flooding agent, and a preparation method and an application thereof and mainly solves the problems that polymer microspheres and oil displacement surfactants are poor in compatibility with an oil displacement surfactant and slug injection is necessary in the prior art. The low-tension polymer microsphere profile controland flooding agent includes, by weight, 0.05-0.5 parts of a polymer microsphere emulsion, 0.1-1 parts of the oil displacement surfactant, and 0-99.85 parts of water. The profile control and floodingagent has high effective solid content, good stability, and ultralow oil-water interface tension. The polymer microspheres have effect of deep profile control while the surfactant has the effect of oil displacement, so that the product has both profile control and flooding functions. The profile control and flooding agent has convenience in site operation and can be used for site application, suchas deep profile control, water plugging and oil displacement, of tertiary oil recovery of high-temperature and high-salt oil fields for increasing recovery efficiency.

The invention is a thick coal bed hydraulic shield support, able to implement synthetic mechanized mining of thick coal beds, comprising top beam, shield beam, seat, column, balancing jack, front link rod, rear link rod, displacive jack and operating valve set, where the top beam and shield beam are equipped with side push jacks, and long and short guide rods inside and equipped with side backplates and hinged mutually; the top and bottom ends of the balancing jack are equipped on the top beam and shield beam, respectively; the top and bottom ends of the column are arranged on the lower part of the top beam and the seat, respectively; the upper ends of the front and rear link rods are hinged at the rear end of the shield beam and the lower ends of them are hinged on the seat; the displacive jack is equipped on the seat; the operating valve set is equipped on the bottom surface of the top beam. And it has large height regulating range and high moving speed, and improves force bearing conditions of the support and prolongs the service life of the support. And the support is made of high-intensity low-alloy steel sheet, small- bulk and lightweight.

The invention relates to a shield hydraulic support of thin coal seam, comprising roof beam, shield beam, substructure, upright post, balance jack, front connecting bar, back connecting bar, advancing jack and control valve group. Side push jack and long-and-short guide bars are set in roof and shield beams. Side shield plates are set on roof and shield beams. The roof beam is joined with the shield beam and up-and-down ends of balance jack are set on roof and shield beams respectively. Up-and-down ends of upright post are set on the bottom of roof beam and substructure. Upper ends of front and back connecting bars are joined with the back end of shield beam respectively and lower ends of them are joined with the substructure respectively. Advancing jack is set on the substructure. Control valve group is set at the bottom of roof beam and two card holders with eight holes is set at the bottom of roof beam. The component of invention is made of Q460 high intensity steel plate, which is provided with light weight and small cubage. The lifting height of roof beam is among 0.9m-2.0m so that mechanical mining for thin coal seam is realized.

The invention discloses a sealing device for a sliding watertight door. The sealing device comprises a sealing assembly and pressing mechanisms arranged on the door frame, wherein the sealing assembly comprises O-shaped sealing rings arranged on the surface of a door plank or the door frame and lip-shaped sealing rings arranged on the inner sides of the O-shaped sealing rings, the lip-shaped sealing rings are in a single opening lip shape, and lip openings face the center of the door plank. The pressing mechanisms comprise wedge-shaped blocks and pressing drive units. After the door plank is driven by a sliding drive unit in place in the sliding direction, the pressing drive units drive the wedge-shaped blocks to move so as to press the door plank to the door frame in the door plank pressing direction, and thus good double-face sealing of the watertight door is achieved through the independent separation operation of sliding and pressing, relative to the door frame, of the door plank, the requirement for evenly sealing the double faces of the watertight door can be met, meanwhile the problem that sealing performance is lowered due to wear to and the shape and mounting state change of the sealing piece caused by opening and closing of a watertight door is solved, and the requirements for the power of a power device and rigidity and strength of a drive device are lowered.

The invention discloses a zirconium alloy pipe inner surface cleaning method. A cleaning device adopted by the method comprises a rack, a clamping mechanism installed at the top of the rack and used for positioning a zirconium alloy pipe, a purging mechanism arranged at the head end of the zirconium alloy pipe, a feeding mechanism and a discharging mechanism, wherein the feeding mechanism and the discharging mechanism are arranged on the two sides of the clamping mechanism correspondingly. The cleaning method comprises the following steps: 1, feeding the zirconium alloy pipe; 2, linearly moving and clamping the zirconium alloy pipe; 3, cleaning the inner surface of the zirconium alloy pipe; and 4, discharging the zirconium alloy pipe. The cleaning method is simple and easy to operate, an operator does not need to manually move the zirconium alloy pipe, the processes of automatic feeding, automatic clamping, automatic purging and automatic discharging can be achieved, the automation degree is high, the zirconium alloy pipe cleaning efficiency is improved, the quality of the inner surface and the outer surface of the pipe can be guaranteed, and application and popularization are facilitated.

The invention discloses a macromolecular amphiphilic polymer modified copper acetylene hydrochloride-based catalyst and preparation thereof. According to the catalyst, nitrogen and phosphorus doped and modified activated carbon is used as a carrier; different types of copper salts are used as main active components, one or more non-noble metal chlorides of groups IA, IIA, VIII, IB and IIB are usedas assistants, and polyethylene glycol, polyvinyl alcohol, polypropylene glycol, polyvinylpyrrolidone and other polymers of different molecular weights are used as the binder. The mercury-free multi-element non-noble metal catalyst provided by the invention shows good catalytic activity and vinyl chloride selectivity in acetylene hydrochlorination reaction, and has high stability. The catalyst has the advantages of simple preparation process, environmental protection, no pollution, high cost performance and the like. Requirements of industrial production are met.

The invention discloses a lubricant for forming a stainless steel inner liner. The lubricant is prepared from, by mass, 3-7 parts of sulfurized olefin, 10-15 parts of sulfurized fatty acid ester, 3-7 parts of overbased calcium sulphonate, 11-14 parts of emulsifier and the balance chlorinated paraffin, wherein the emulsifier is prepared from, by mass, 6-8 parts of fatty alcohol-polyoxyethylene ether and 5-7 parts of petroleum sodium sulfonate, wherein the sulfurized fatty acid ester is used as an anti-wear agent at an extreme pressure, the chlorinated paraffin has excellent lubricating and extreme pressure resistance efficacies for stainless steel machining in a low-temperature area, the overbased calcium sulphonate plays a coordinating role in a system, and the fatty alcohol-polyoxyethylene ether and the petroleum sodium sulfonate contribute to emulsification in the system.

The invention provides a vehicle anti-collision beam and a manufacturing method thereof, and particularly provides a high-strength anti-collision beam with multi-section buffering and the manufacturing method thereof. The vehicle anti-collision beam comprises a plastic bumper shell, an energy absorbing buffer layer, a reinforcing cross beam, energy absorbing boxes and bolts, and the plastic bumpershell, the energy absorbing buffer layer and the reinforcing cross beam are sequentially connected from outside to inside; and the energy absorbing boxes are separately arranged at the two ends on one inward side surface of the reinforcing cross beam, and the energy absorbing boxes are connected with the reinforcing cross beam and a vehicle body main body. The manufacturing method of the vehicleanti-collision beam comprises the steps that (1) the plastic bumper shell is prepared from a compression molding process; (2) the reinforcing cross beam is prepared by adopting a high-strength steel hot stamping method; (3) the energy absorbing buffer layer with the same size as the reinforcing cross beam is prepared by adopting carbon fiber composite rubber materials, and the plastic bumper shell, the energy absorbing buffer layer and the reinforcing cross beam are connected through the bolts; and (4) the two energy absorbing boxes are connected to the two ends of the inner side of the reinforcing cross beam, and the reinforcing cross beam is connected to an installation plate through the energy absorbing boxes.

The invention discloses chocolate with the effect of improving immunity. The chocolate is characterized by being added with tea polyphenol accounting for 0.01%-1% of the total weight of the chocolate, aloe extract accounting for 0.01%-1% of the total weight of the chocolate, salidroside accounting for 0.01%-1% of the total weight of the chocolate, biological active peptides accounting for 0.01%-1% of the total weight of the chocolate, active calcium accounting for 0.01%-1% of the total weight of the chocolate, radix acanthopanacis semticosi extract accounting for 0.01%-1% of the total weight of the chocolate, fructus psoraleae extract accounting for 0.01%-1% of the total weight of the chocolate, coix seed extract accounting for 0.01%-1% of the total weight of the chocolate, orange peel extract accounting for 0.01%-1% of the total weight of the chocolate, tuber fleeceflower stem extract accounting for 0.01%-1% of the total weight of the chocolate, wild rice shoot extract accounting for 0.01%-1% of the total weight of the chocolate, cornua cervi pantotrichum extract accounting for 0.01%-1% of the total weight of the chocolate, cod liver oil accounting for 0.01%-1% of the total weight of the chocolate, flos chrysanthemi extract accounting for 0.01%-1% of the total weight of the chocolate, propolis accounting for 0.01%-1% of the total weight of the chocolate, pteridium aquilinum extract accounting for 0.01%-1% of the total weight of the chocolate, common yam rhizome extract accounting for 0.01%-1% of the total weight of the chocolate, zinc-enriched yeast accounting for 0.01%-1% of the total weight of the chocolate and okra extract accounting for 0.01%-1% of the total weight of the chocolate. According to the chocolate, the durability of functional active factors is achieved while easy chewing is achieved, and the nutritional healthcare effects of refreshing people, resisting fatigue, improving the organism immunity and the like are achieved; meanwhile, an original gum base is not destroyed, and the production cost is reduced.

The invention relates to submicron polyacrylamide microsphere emulsion with high solid content and high stability as well as a preparation method thereof. The problems in the prior art that the use amount of an emulsifier in preparation of the polyacrylamide microsphere emulsion by a reversed-phase microemulsion method as well as the solid content is slightly low and the stability is low in preparation of a product by the common reversed-phase emulsion method are mainly solved. According to the technical scheme which adopts a composite emulsifier system and a composite initiator, the polyacrylamide microsphere emulsion is prepared by polymerizing: a) 10 to 40 parts by weight of an oil phase, b) 1 to 8 parts by weight of a composite emulsifier system, c) 50 to 80 parts by weight of an aqueous phase containing a polymerization monomer, wherein the content of the polymerization monomer in the aqueous phase is 40 to 70 percent, and d) 0.01 to 1.0 part of reversed-phase emulsion system suchas a crosslinking agent, so that the problems are solved well, and the polyacrylamide microsphere emulsion can be applied to field application capable of increasing recovery ratio, such as profile modification in depth, water plugging and oil displacement for tertiary oil recovery of medium-low permeability oil fields.

Chocolate having an anti-fatigue effect is prepared by adding the components to chocolate, on the basis of the total weight of the chocolate, the following components are added and include: 0.01-1% of tea polyphenol, 0.01-1% of an aloe extract, 0.01-1% of rhodioloside, 0.01-1% of bioactive peptide, 0.01-1% of active calcium, 0.01-1% of a black fungus extract, 0.01-1% of a codonopsis pilosula extract, 0.01-1% of a chili leaf extract, 0.01-1% of a tomato extract, 0.01-1% of a wolfberry extract and 0.01-1% of an atractylodes macrocephala extract. In the application, functional factors, such as the tea polyphenol, aloe, active calcium, bio-active peptide and the like, are added to the product according to modern food biologic technology, and bio-activity or stability of the added substances and durable release of fragrance are ensured by means of bio-technologies and nano-technologies, so that the chocolate can durably release the active functional factors when people chew the gum, thus refreshing spirit, resisting fatigue, improving body immunity, and the like. The chocolate is free of damage on original gum base and is reduced in production cost.

The invention relates to a shield hydraulic support of thin coal seam, comprising roof beam, shield beam, substructure, upright post, balance jack, front connecting bar, back connecting bar, advancing jack and control valve group. Side push jack and long-and-short guide bars are set in roof and shield beams. Side shield plates are set on roof and shield beams. The roof beam is joined with the shield beam and up-and-down ends of balance jack are set on roof and shield beams respectively. Up-and-down ends of upright post are set on the bottom of roof beam and substructure. Upper ends of front and back connecting bars are joined with the back end of shield beam respectively and lower ends of them are joined with the substructure respectively. Advancing jack is set on the substructure. Control valve group is set at the bottom of roof beam and two card holders with eight holes is set at the bottom of roof beam. The component of invention is made of Q460 high intensity steel plate, which is provided with light weight and small cubage. The lifting height of roof beam is among 0.9m-2.0m so that mechanical mining for thin coal seam is realized.

The invention discloses automatic inspection equipment for a power cable, and relates to the technical field of cable inspection equipment. During inspection, a microcontroller controls a driving module and enables a driving motor to act, the driving motor drives a driving wheel to rotate through a driving shaft, the whole equipment walks on a steel cable, an inspection camera shoots the cable, and transmits information back to the ground through a communication module or stores the information in a storage module, so that later information reading is facilitated; when the equipment walks to a connector, an electric push rod jacks up a movable arm, the driving wheel is separated from a steel cable, at the moment, shifting teeth on a shifting wheel make contact with the connector under blocking of a cross connector, the shifting wheel rotates, the shifting wheel drives a rotating shaft to rotate, and under cooperation of a bevel gear set, a transmission shaft drives a rotating disc to rotate, the rotating disc drives a left side walking assembly and a right side walking assembly to move towards the two sides along a through groove through the driving rod, so that the left side walking assembly and the right side walking assembly avoid the connector, and jamming with the connector is avoided.

The invention discloses a supported heteropolyacid catalyst and a preparation method thereof. The catalyst comprises an active component, an auxiliary agent and a carrier, wherein the active componentis heteropolyacid, the auxiliary agent is selected from one or more of rare earth elements, and the carrier is petroleum coke-based activated carbon. The preparation method comprises the following steps: mixing petroleum coke, auxiliary-containing metal soluble salt and an activating agent, uniformly mixing, activating, washing and drying; and finally, introducing heteropolyacid, drying and roasting to obtain the supported heteropolyacid catalyst. The catalyst prepared by the method has high low-temperature activity, selectivity and carbon deposition resistance.

The invention relates to improvement of aluminum profiles, in particular to a preparation method of a bright corrosion-resistant aluminum profile. The preparation method sequentially comprises the steps that a bright corrosion-resistant solution is prepared, specifically, the bright corrosion-resistant solution is prepared from, by weight, 20-40 parts of sodium fluoride, 30-60 parts of ammonium bifluoride, 10-20 parts of potassium permanganate, 40-50 parts of potassium chromate, 15-25 parts of zinc phosphate, 8-18 parts of sodium nitrate, 5-12 parts of praseodymium chloride, 10-16 parts of ethylenediaminetetraacetic acid, 7-14 parts of malic acid, 8-12 parts of sodium dodecyl benzene sulfate, 6-13 parts of nickel sulfate, 15-25 parts of triethanolamine and 500-900 parts of water, the pH value is controlled to be 3-4, and the bright corrosion-resistant solution is obtained; the bright corrosion-resistant solution is heated to 30-40 DEG C, and then the aluminum profile is dipped in the bright corrosion-resistant solution for 2-4 min; then under the temperature of 80-95 DEG C, hot air circular drying is conducted for 40-50 min; second-time dipping is conducted under the microwave vacuum condition, and then the aluminum profile is subjected to microwave treatment in a bright corrosion-resistant agent after first-time dipping treatment for 3-7s; and washing is conducted through flowing water till the pH value of eluate is neutral, and then drying is conducted under 40-48 DEG C. The aluminum profile prepared by the preparation method is bright, soft, superior in corrosion resistance, safe and environmentally friendly.

The invention discloses an ultra-light intelligent wheelchair, which comprises auxiliary wheels, a connecting rod, a cardan shaft, main wheels, a driving box, a pedaling pedal, a bearing rod, a seat,handlebars, a control box and a control handle and a massage device. The ultra-light intelligent wheelchair is provided with a massage device on the structure; the device is energized through the electric control line by manipulating the control handle on the control box. After the device is energized, all parts of the massage device are activated. When someone lies down on the massage device, thesensor will sense it immediately, and then the data will be transmitted to the controller through the data transmission line. The controller controls the rotation speed of the motor according to theinformation transmitted. The motor drives the threaded rod to rotate, and then the threaded rod will drive the transmission gear to rotate the transmission rod. When someone sits on the seat for a long time, the massage device will massage his back, so that it can timely coordinate the body parts and reduce the need to leave the seat for back massage.

An antibacterial chewing gum capable of eliminating bad breath, comprising gum base, sugar and auxiliary materials, characterized in that it also includes 0.01-1% of tea polyphenols, 0.01-1% of honeysuckle extract, 0.01% of the total weight of the chewing gum ‑1% Panax notoginseng extract, 0.01‑1% bioactive peptide, 0.01‑1% active calcium, 0.05‑0.5% chrysanthemum, 0.05‑0.5% zinc sulfate, 0.01‑1% psoralen extract, 0.01‑1% of safflower extract and 0.01‑1% of japonicus root extract. This application introduces functional factors such as tea polyphenols, panax notoginseng, honeysuckle, active calcium, and bioactive peptides into modern food biotechnology, and focuses on solving the problems of ensuring the biological activity or stability and fragrance of added substances by means of biotechnology and nanotechnology. Long-lasting release can make the functional active factors persist while chewing easily, so as to eliminate bad breath, adjust the balance of yin and yang inside the body and other health care effects, while not destroying the original gum base and reducing production costs.

The invention discloses an automobile part producing and washing machine. The automobile part producing and washing machine structurally comprises a bottom rod, a washing box, a maintenance window, akey lock, a handle, a control panel, a display screen, a control button, an indicator light, a washing tank, a marking plate, a cooling window, and a delivery device. According to the automobile partproducing and washing machine, a medicine feeding device is arranged on the structure, the control button is pressed, a controller connected to an electronic control line can be started to work, a motor also enters into the working state under the control of the controller, the motor drives a bevel gear, a transmission gear drives a transmission shaft and a fan-shaped gear under the transmission of the bevel gear, and the fan-shaped gear uses the transmitted power to drive a rack ring to move up and down; and when the washing liquid is needed to wash, dosing treatment can be conducted by the medicine feeding device, so that a timely coordination function can be achieved when the washing liquid is needed to wash, and the phenomenon that the washing efficiency is affected due to the manual dosing of the washing fluid is reduced.

The invention discloses an animal pesticide poisoning detoxifying preparation, which is characterized by being prepared from the following components by weight: 30g of edible oil, 2g of a radix ophiopogonis extract, 2g of an extract of cortex lycii radicis, 2g of an extract of honeysuckle flowers, 0.2g of santonin, 2g of a zanthoxylum schinifolium extract, 0.5g of tea polyphenol, 2g of a psoralea corylifolia extract, 1g of bioactive peptide, 2g of active calcium, 0.2g of zinc sulfate and 2g of a stemona root extract. The detoxifying preparation disclosed by the invention is simple in components, good in effect and safe to use; the edible oil serves as a carrier and traditional Chinese medicinal detoxifying ingredients are added; and in a stomach, the edible oil can stop toxin absorption of gastric mucosa, and grease and medicines can also decompose toxins of a pesticide, so that an effective detoxifying effect is achieved; therefore, the detoxifying preparation can bring about infinite benefits to animals and human.

The invention relates to the technical field of metallurgical equipment, in particular to a copper blank cross rolling device based on duplex roller hot rolling. The copper blank cross rolling devicesolves the technical problem that a hot rolling device cannot conduct polishing treatment on a copper product surface in time. In order to solve the above technical problem, the copper blank cross rolling device based on duplex roller hot rolling is provided and comprises a base, a first seat plate and a second seat plate are fixedly connected to the two sides of the upper surface of the base, a driven rotating rod and a driving rotating rod are inserted into the upper and lower ends of one side of the first seat plate, the driven rotating rod and the driving rotating rod are sleeved with gears, the two gears are meshed, and a first motor and a second motor are connected to the two sides of the interior of the base in a sleeving manner. When a dull polish girdle in the device rotates, thecopper blank surface can be polished and ground while copper blank molding is carried out, burrs and protrusions on the molded copper element surface can be reduced, a certain action force can be applied to the dull polish girdle, and the copper blank molding efficiency can be improved.

The invention provides an anti-fatigue chocolate capable of refreshing. The anti-fatigue chocolate is characterized by being added with 0.01-1wt% of tea polyphenol, 0.01-1wt% of aloe extracts, 0.01-1wt% of rhodioloside, 0.01-1wt% of biological active peptide, 0.01-1wt% of active calcium, 0.01-1wt% of mint extracts, 0.01-1wt% of purple sweet potato anthocyanin, 0.01-1wt% of white flower patrinia extracts, 0.01-1wt% of fineleaf schizonepeta herb extracts, 0.01-1wt% of cordyceps mycelia extracts and 0.01-1wt% of lily bulb extracts. According to the application, functional factors such as tea polyphenol, aloe, rhodiola rosea, active calcium and biological active peptide are introduced into modern food biotechnologies; a biotechnology means and a nano technology are mainly utilized to ensure the biological activity or stability and durable fragrance release of added substances; easiness in chewing and functional active factor durability are simultaneously realized, and nutritional health functions of refreshing, resisting fatigue, improving the body immunity and the like are achieved.

The invention discloses a traditional Chinese medicine for treating lumbar disc herniation. The traditional Chinese medicine is prepared from the following raw materials in parts by weight: 10-20 parts of scutellaria baicalensis, 10-20 parts of dandelion, 10-30 parts of raw radix astragalis, 10-20 parts of radix salviae miltiorrhizae, 10-20 parts of radix cyathulae, 6 parts of ligusticum wallichii, 10 parts of sargent gloryvine, 10 parts of radix ophiopogonis, 10-20 parts of eucommia ulmoides, 10-20 parts of radix polygonum multiflorum preparata, 10 parts of radix rehmanniae praeparata, 10 parts of herba cistanche, 10 parts of rhizoma corydalis, 10 parts of roasted radix aucklandiae, 3 parts of raw licorice roots, 10 parts of rhizoma smilacis glabrae and 3 parts of gastrodia elata, as well as 10 parts of rhizoma fagopyri dibotryis which are taken after being steamed. The traditional Chinese medicine takes kidney-yin nourishing as breakthrough, pays attention to the importance of auxiliary medicinal materials, has the effects of tonifying liver and kidneys, repairing annulus fibrosus in the lumbar intervertebral disc, wherein dandelion has the effects of protecting liver, spleen and stomach, and has an important effect on absorption, digestion and discharge of the whole medicine; the rhizoma fagopyri dibotryis serving as trailbreaker has a critical effect for the medicine reaching a key position; roasted radix aucklandiae is used for coordinating the new formula to reach the target position of a patient safely in one step.

The embodiment of the invention provides an education monitoring system. The system comprises data processing equipment, scanning equipment, network equipment, safety protecting equipment, a server and storage equipment; the network equipment is connected with the data processing equipment, the scanning equipment and the safety protecting equipment separately; the data processing equipment is connected with the server and the safety protecting equipment separately; the server is connected with the storage equipment through an exchanger; the network equipment is also connected with educationaladministration terminal equipment, student management terminal equipment and student self-assessment terminal equipment separately. By means of the education monitoring system, in-time effective monitoring, diagnosis and feedback of the education quality can be achieved, so that the pertinence and effectiveness of teaching are further improved, the purposes of in-time regulation and rational allocation of educational resources are achieved, an effective basis is provided for scientific evaluation of teaching situations of various schools, and the education quality management level of an area is improved.

The invention provides a cable arrangement device, and belongs to the technical field of marine mechanical equipment. In the cable arrangement device, a rack plays a role in supporting a rotationally connected threaded rod and a fixedly connected guide rod, a sliding frame is provided with a threaded hole matching with the threaded rod, the threaded rod is provided with a first thread and a second thread which are opposite in rotation direction and identical in lead, and the starting point and the end point of the first thread are identical to the starting point and the end point of the second thread correspondingly. The sliding frame is provided with a threaded hole arranged on the threaded rod in a sleeve mode, the inner wall of the threaded hole is provided with a plurality of first threaded protrusions corresponding to the first thread and the second threads correspondingly, the width of the middle of each first threaded protrusion is greater than that of the two ends, the side wall of each first threaded protrusion is in an arc shape, on the plane where the end face of the threaded rod, the central angle corresponding to the orthographic projection of the first threaded protrusions is 180 degrees, the sliding frame drives a cable to move back and forth on the threaded rod, the cable arranged in order on a roller is quickly and effectively obtained, and the cable winding and unwinding efficiency of the roller is improved.

The invention provides a preparation method of an electrode foil for an aluminum electrolytic capacitor. The preparation method comprises the following steps: soaking an aluminum foil in a pretreatment solution, plating nano titanium, soaking in a first mixed treatment solution, soaking in a second mixed treatment solution and soaking in a third mixed treatment solution. The preparation method of the electrode foil for the aluminum electrolytic capacitor is simple, hydrochloric acid, sulfuric acid and nitric acid can be effectively recycled, and in the pretreatment waste liquid and the first mixed treatment waste liquid, the recovery rate of hydrochloric acid and sulfuric acid reaches 85%, and the retention rate of Al<3+> reaches 95%; in the second mixed treatment waste liquid and the third mixed treatment waste liquid, the recovery rate of nitric acid reaches 80%, and the retention rate of Al<3+> reaches 95%; and besides, current does not need to be applied during soaking in the second mixed treatment liquid and soaking in the third mixed treatment liquid, the advantages of energy conservation and emission reduction are achieved, and the prepared electrode foil has better hole forming uniformity and bending performance.

The invention discloses a supported heteropolyacid catalyst and a preparation method thereof. The catalyst comprises an active component, an auxiliary agent and a carrier; the active component is a heteropolyacid, and the auxiliary agent is selected from one of rare earth elements Or several, the carrier is petroleum coke-based activated carbon. The preparation method is as follows: mixing petroleum coke, a metal soluble salt containing an auxiliary agent and an activator, mixing uniformly and then activating, and then performing washing and drying treatments; finally, introducing a heteropolyacid, and then drying and roasting to obtain a supported heteropolyacid catalyst. The catalyst prepared by the method of the invention has high low-temperature activity, selectivity and anti-coking performance.

The invention discloses a piglet feed complex enzyme preparation and a production method and application thereof. The complex enzyme preparation comprises the following enzyme activity components: 80-100U / g of glucose oxidase, 20-25U / g of alpha-galactosidase, 3000-4000U / g of xylanase, 500-600U / g of beta-dextranase, 500-600U / g of beta-mannase, 2000-3000U / g of acid proteinase, 800-1000U / g of neutral protease, 800-1000U / g of medium-temperature alpha-amylase, 400-500U / g of fungus alpha-amylase and 3000-4000U / g of glucamylase. According to the complex enzyme preparation, a mixture of corn starch, monopotassium phosphate, dipotassium phosphate and calcium sulfate serves as a diluent. The using method of the complex enzyme preparation comprises the step of adding 500-750g of complex enzyme preparation into every ton of piglet complete formula feed.

The invention relates to a low-tension polymer microsphere profile control and flooding agent, and a preparation method and an application thereof and mainly solves the problems that polymer microspheres and oil displacement surfactants are poor in compatibility with an oil displacement surfactant and slug injection is necessary in the prior art. The low-tension polymer microsphere profile controland flooding agent includes, by weight, 0.05-0.5 parts of a polymer microsphere emulsion, 0.1-1 parts of the oil displacement surfactant, and 0-99.85 parts of water. The profile control and floodingagent has high effective solid content, good stability, and ultralow oil-water interface tension. The polymer microspheres have effect of deep profile control while the surfactant has the effect of oil displacement, so that the product has both profile control and flooding functions. The profile control and flooding agent has convenience in site operation and can be used for site application, suchas deep profile control, water plugging and oil displacement, of tertiary oil recovery of high-temperature and high-salt oil fields for increasing recovery efficiency.