73results about How to "With high temperature and high pressure resistance" patented technology

The present invention discloses a preparation method and application of Bacillus coagulans and a spore preparation cultured in high density, and belongs to the microbe technical field. A Bacillus coagulans strain is classified and named Bacillus coagulans JSSW-LA-07 and is preserved as CGMCC No.2602 in China General Microbiological Culture Collection Center. The Bacillus coagulans strain JSSW-LA-07 can produce spore under an aerobic condition and produce a small amount of L-lactic acid in the metabolism during a course of fermentation. The Bacillus coagulans strain can produce L-lactic acid with a higher purity under an anaerobic condition. The strain does not produce substances which can be harmful to human and cultured animals, has the characteristics of innocuity, on residue, no side effect and the like, has a great significance for production of green and safe livestock, fowls and marine products and improvement of cultivation ecological environment, and can be widely applied in the cultivation production of high yield, high quality, high efficiency, synusiologic and safe livestock, fowls and marine products, and the regulation and control of the ecological environment of cultivation.

The invention discloses an internal-combustion engine variable geometry turbocharger nozzle ring component, comprising forks(1), a mounting plate(2) and a blade(3), wherein the side surface of the mounting plate(2) is provided with a plurality of groups of blades(3) which are evenly spaced and arranged on the same circumference and are in the same direction, each group of blades which consists of at least three blades(3) and can be mutually opened and folded simultaneously; the other side of the mounting plate is provided with forks(1) which are connected with corresponding blades; because the blades are the three dimensional curved surface, air inlet passages for blades are continuously changed, the air input of the turbocharger is also continuously changed according to the working condition of the engine, thereby the engine can get proper amount of pressurized air under all conditions, which makes that the engine always runs under a reasonable condition, thereby realizing that the turbocharger increases the output power of the engine by 30 to 100 percent, reducing the emission of harmful gas by more than 10 percent, realizing that the fume emission reaches the emission standard of the European IV, lowering oil consumption by 5 to 10 percent and improving the economical efficiency of the automobile.

Provided is a plant tissue culture bacteriostatic (antiseptic) agent containing botanical fungicide. The bacteriostatic (antiseptic) agent comprises isothiazolinone, nisin and aqueous extracts of the Chinese herbal medicines of terminalia, groundsel and aromatic madder. When the bacteriostatic (antiseptic) agent is applied in plant tissue culture, 0.35 to 0.5% of the bacteriostatic (antiseptic) agent is added into a medium, which enables fungal and bacterial contamination to a culture to be effectively reduced or prevented and poses little adverse influence on plant growth, thereby enhancing the success rate of plant tissue culture; the bacteriostatic (antiseptic) agent can also be applied in open type plant culture, e.g., in the rooting phase of sound seedlings during a late plant culture stage, the bacteriostatic (antiseptic) agent is directly added into a medium, and the medium can be inoculated in indoor environment with bacteria or a few bacteria without undergoing the step of autoclaving or operating on a superclean bench, thereby simplifying seedling culture in plant tissue culture, enhancing working efficiency, saving a great amount of energy and reducing production cost for plant tissue culture seedlings; therefore, the bacteriostatic (antiseptic) agent has a critical actual application value.

The invention discloses a sulfur deposition device based on a magnetic suspension balance. The sulfur deposition device comprises a displacement system, a stratum condition simulation system, a magnetic suspension balance measuring system and a data collecting and processing system. The sulfur deposition device based on the magnetic suspension balance has the beneficial effects that a high-temperature, high-pressure and high-sulfur-content stratum environment can be truly simulated, the measuring accuracy of the sulfur deposit amount is greatly improved, the viscosity, bulk coefficients and deviation factors of gas are calculated in real time, and the dynamic change of the rock core permeability due to sulfur deposition is measured online in real time. The sulfur deposition device based on the magnetic suspension balance has the advantages of good security, high measuring accuracy, high temperature resistance, high pressure resistance, strong corrosion resistance and the like and further has the important significance to the evaluation of the dynamic influence of the sulfur deposition of a high sulfur gas reservoir to the exploitation.

The invention discloses a plate-shell type middle fluid type gasifier which is small in size, light in weight and capable of effectively reducing equipment cost, improving the reliability of the equipment and prolonging the service life of the equipment. The gasifier consists of a full-liquid type evaporator, a plate-shell type heat exchanger A and a plate-shell type heat exchanger B, wherein a plate travel runner inlet of the plate-shell type heat exchanger is used for inputting a medium to be gasified; the plate travel runner inlet is connected with a shell travel runner inlet of the plate-shell type heat exchanger B; the gasified medium is output from the shell travel outlet of the plate-shell type heat exchanger B; the plate travel runner inlet of the plate-shell type heat exchanger B is communicated with seawater; the plate travel runner outlet of the plate-shell type heat exchanger B is connected with the plate travel runner inlet of the full-liquid type evaporator; the plate travel runner outlet of the full-liquid type evaporator is communicated with the seawater; the shell travel runner inlet is connected with the shell travel runner outlet of the plate-shell type heat exchanger A; the shell travel runner outlet is connected with the shell travel runner inlet of the plate-shell type heat exchanger A.

The present invention provides a senor device based on a fiber miniature Fabry-Perot cavity. The device comprises a broadband light source, a circulator, a sensing head and a spectrum analyzer, the sensing head is composed of corrosion multi-mode fiber, microballoon and coating glue, and the coating glue is ultraviolet glue or high-temperature glue. The a multi-mode fiber end face is subjected to corrosion to obtain a taper chamber, a microballoon is inserted into the taper chamber of the corrosion multi-mode fiber, the taper chamber is sealed by using the coating glue which has one part penetrating into the taper chamber, and the microballoon and the coating glue end face form a Fabry-Perot cavity. The circulator receives light from the broadband light source and transmits the light to the sensing head, the sensing head reflects the light to the circulator, and the light is transmitted to the spectrum analyzer through the circulator to form a similar Fabry-Perot interferometer for measuring the wavelength drift of the reflection spectral signature and calculate the values of the measured enviromental parameters. The structure is compact, the manufacturing is simple and the cost is low.

The invention provides an all-fiber weak magnetic field measuring device. According to the measuring device, an all-fiber FBG F-P cavity is formed in a magnetic sensitive module. When a surrounding magnetic field changes, cavity length of the all-fiber FBG F-P cavity is enabled to change by the scaling effect of magnetostrictive components and the spectral characteristics of interference signals reflected by the all-fiber FBG F-P cavity are enabled to change, and magnetic field intensity can be accurately calculated via spectral characteristic data analysis of the interference signals. With application of the mode, magnetic field intensity of a weak magnetic field can be accurately measured.

The invention relates to a high temperature and high pressure-resistant type graphene-modified phenolic heavy-duty anti-corrosive coating for an oil pipe. The high temperature and high pressure-resistant type graphene-modified phenolic heavy-duty anti-corrosive coating consists of a primer and a topcoat, wherein the primer consists of a component A and a component B; the topcoat consists of a component A and a component B; the component A of the topcoat is prepared from the following components in percentage by mass: 20 to 60% of epoxy resin, 10 to 20% of organic solvent, 0 to 1.5% of graphene, 2 to 10% of pigment, 10 to 30% of filler, and 0 to 2% of adjuvant, and the sum of mass percentages of the components of the component A of the topcoat is 100%; the component B of the topcoat is an epoxy curing agent; the mass of the component B of the topcoat accounts for 8 to12% of the total mass of the component A of the topcoat. The high temperature and high pressure-resistant type graphene-modified phenolic heavy-duty anti-corrosive coating has the excellent properties of strong adhesion force, strong abrasion-resistant property, chemical medium-resistant property, high temperature and high pressure-resistant property, and the like.

The invention provides a method for preparing a fluid loss agent. The method comprises the following steps of: a) mixing phenol, sulphuric acid, trimethylamine and a first solvent, and reacting to generate cation phenol; b) mixing an alkaline aqueous solution, lignite and a second solvent, and reacting to obtain sodium humate slurry; and c) mixing the sodium humate slurry with cation phenol, sodium sulfite and a third solvent, and carrying out polymerization to obtain the fluid loss agent. The fluid loss agent provided by the invention is obtained by firstly carrying out cationization on phenol, mixing with the sodium humate slurry and carrying out polymerization, both a humic acid group and a sulfonated phenol group are contained in the molecule of the fluid loss agent, a molecular chainis longer, and a sulfonic acid group has strong inhibition and tolerance effects to various metal ions in soil, thus mud viscosity can not be improved, a mud cake formed by a drilling fluid and soil is compact and is difficult to collapse. Besides, a benzene ring exists, thus the fluid loss agent prepared by the preparation method provided by the invention also has the characteristics of high-temperature resistance and high-pressure resistance.

The invention discloses an anticorrosive coating, a preparation method and applications of the anticorrosive coating, wherein the anticorrosive coating comprises an A component and a B component, wherein the mass ratio of the A component to the B component is 100:20-35, and the A component comprises the following components by weight: 35-50 parts of novolac epoxy resin F51; 12-14 parts of xylene; 10-12 parts of 1,4-butanediol diglycidyl ether; 6-8 parts of quartz powder; 7-9 parts of mica powder; 5-8 parts of talc powder; 8-10 parts of titanium dioxide; 1-2 parts of defoaming agent dimethyl silicone; and 1-2 parts of coupling agent KH570; and the B component is modified polyether amine-1784. The anticorrosive coating prepared by adopting the technical scheme has the advantages of resistance to wear, resistance to acid and alkali corrosion, and resistance to high temperature and high pressure, and can meet the requirements of corrosion protection of oil drill pipe for exploitation.

The invention discloses a ceramic membrane prepared by using 3d (three-dimensional) printing technology and a preparation method thereof. The ceramic membrane comprises the following raw materials: vermiculite, quartz, calcium silicate, active carbon, zeolite, attapulgite, carbon fiber, tetrabutyl titanate, methyl isobutyl ketone, glass fiber, graphene, an initiator, a catalyst, a tackifier, a flexibilizer, a flocculation agent and a stabilizer; and the ceramic membrane is prepared through the steps of decontamination, drying, mixing, laser scanning molding, cooling and the like. The ceramic membrane prepared by using the 3d printing technology contains mixing elements such as graphene and silicate, and has the characteristics of high temperature and high pressure resistance, corrosion resistance, good anti-seismic property and the like; and the ceramic membrane prepared by using the 3d printing technology is high in efficiency of absorbing poisonous gases such as VOCs, simple in process and low in preparation cost.

The invention discloses weak grating based single-component and three-component fiber grating vibration sensors and a three-component fiber grating vibration sensing array. The three-component fiber grating vibration sensor comprises three single-component fiber grating vibration sensors, as in Claims 1-3, in orthogonal combination, a sensing fiber comprises four weak gratings, and 3 blank fibers among the 4 adjacent weak gratings are wound around a connecting rack of the three single-component fiber grating vibration sensors. The structure of the single-component sensor is designed, the horizontal sensitivity is reduced greatly, the three-component vibration sensor is formed in a modularized packaging manner, and the disadvantages that the three-component fiber grating vibration sensor is sensitive in the intersection direction is overcome.

The invention discloses a ceramic membrane for sewage treatment prepared by 3D printing technology and a preparation method thereof. The ceramic membrane comprises the following raw materials: diatomite, montmorillonite, calcium silicate, activated carbon, zeolite, attapulgite, carbon fiber , polyhydroxyvalerate, polybutylene succinate, titanium dioxide particles, alumina powder, magnesium oxide powder, glass fiber, initiator, catalyst, tackifier, toughener, coagulant, stabilizer, The ceramic membrane is made through the steps of decontamination, drying, mixing, and laser scanning sintering under the established three-dimensional file model. The sewage treatment ceramic membrane prepared by 3D printing technology in the present invention is rich in activated carbon, attapulgite, zeolite, etc., which can effectively absorb heavy metal ions, isolate non-beneficial bacteria and a large number of pollutants, etc., and only some trace elements and water molecules can pass through. The formed water indicators all meet the national "Drinking Water Sanitation Standard" (GB5749‑2006).

The invention discloses a reaction unit for imitating a diagenetic process of sedimentary rock. The reaction unit comprises an alloy kettle set and a sample chamber. The sample chamber is inserted and placed in the middle of a containing cavity, and the outer wall of the sample chamber is tightly matched with the cavity wall of the containing cavity. An upper pressing rod is inserted from the upper end of the containing cavity and abutted against two ends of the sample chamber, and a lower push rod is inserted from the lower end of the containing cavity and abutted against the two ends of the sample chamber. A sealing assembly comprises an upper sealing assembly and a lower sealing assembly. The upper sealing assembly is composed of a graphite annulus, a middle metal ring and an upper red copper ring, wherein the graphite annulus, the middle metal ring and the upper red copper ring are sequentially placed inside a clearance between the upper pressing rod and the alloy kettle set in a sleeved mode. The lower sealing assembly is composed of a lower red copper ring and a lower pressing ring, wherein the lower red copper ring and the lower pressing ring are sequentially placed inside a clearance between the lower push rod and the alloy kettle set in a sleeved mode, and the lower red copper ring and the lower pressing ring are pushed tightly on a skirt portion of the lower push rod through a lower sleeve and a compression bolt which are arranged on the lower end portion of the alloy kettle set. The reaction unit has the advantages of being high-temperature-resisting, high-pressure-resisting, weak-acid-base-fluid-resisting, good in sealing property, long in experimental time and easy to dismount, and experimental design demands are completely met.

The invention relates to a microwave high pressure extraction container, which takes silicon nitride ceramic material as a tank body to realize microwave high pressure supercritical fluid synchronous coupling extraction of different organic compounds in samples inside the tank. The microwave high pressure extraction container mainly consists of a tank body, an upper cover, a connecting bolt and a sealing pad. The upper cover is provided with a high pressure fluid inlet, a high pressure fluid outlet, a pressure monitoring mouth and a safety valve connector. The tank body is connected into a whole with the upper cover by the connecting bolt, a connecting nut and the sealing pad. The high pressure fluid inlet and the high pressure fluid outlet are respectively communicated with the internal chamber of the tank body. The microwave high pressure extraction container of the invention has the function of realizing effectively extracting different organic compounds in microwave supercritical fluid synchronous coupling extraction samples, is beneficial for the high efficiency purification extraction and preparation of different organic compounds in the fields of environmental monitoring, chemicals, pharmacy, etc., and is especially suitable for the high efficiency extraction of different organic compounds in solid / half-solid samples.

The invention discloses a 3D printing membrane for absorbing ether organic compounds and a preparation method thereof. The 3D printing membrane comprises the following raw materials: sepiolite, hydrotalcite, calcium silicate, activated carbon, kaolin, zeolite, calcium oxide, anhydrous calcium chloride, anhydrous cupric sulfate, carbon fibers, isopropyl titanate, methyl isobutyl ketone, glass fibers, graphene, an initiator, a plasticizer, a coagulant and a stabilizer, and the 3D printing membrane is prepared by the steps of decontamination, drying, mixing, laser scanning forming and cooling. As the 3D printing membrane for absorbing ether organic compounds disclosed by the invention contains graphene, silicate and other mixed components, the 3D printing membrane has the characteristics of high temperature and high pressure resistance, corrosion resistance, good seismic performance and the like; and the 3D printing membrane provided by the invention can effectively absorb VOCs and other toxic gases, and the absorption rate is higher than 99%.

This invention disclose a kind of connoid stiff confinement ball valve. It includes the valve body, and there has the ball core in the valve body, the ball core connected with the upper valve handle and the lower valve handle separately, there has the elastic washer, the clamping bar between the valve base and the valve body, the sealing surface of the ball core and the paired sealing surface of the valve base is all the connoid structure, the axis of rotation is composed of the upper valve handle and the lower valve handle, there each has a eccentric center in the axial direction of the sealing surface of the ball core and is normal to the radial direction of the axis of rotation of the ball core. The invention is stiff confinement structure, it is high temperature resistant and heavy pressure resistant, and is antifriction, it can be used as the highheat and high-pressure pipe,the interceptor valve of the easy-abrade slurry media pipe or the pressure, flow control valve.

The invention relates to an anode foil and a preparation method thereof. The preparation method of the anode foil comprises the steps of (1) pretreatment; (2) primary formation; (3) secondary formation; (4) third-stage formation; (5) fourth-stage formation; (6) five-stage formation; (7) six-stage formation; (8) first heat treatment; (9) first intermediate treatment; (10) first repairing; (11) secondary heat treatment; (12) secondary intermediate treatment; (13) secondary repairing; (14) third heat treatment; (15) third repairing; and (16) post-treatment. According to the anode foil and the preparation method thereof, the production process is simple, the bath solution is easy to control, an anode foil oxide film prepared by the method can effectively reduce the loss of an aluminum electrolytic capacitor and prolong the service life of the aluminum electrolytic capacitor, and the special requirements of the market for industrial robots, solar energy, welding machines, flash lamps for airplanes and the like are met.

The invention discloses a phenolic foam thermal-insulation material and a preparation method thereof. The material is prepared from raw materials in parts by weight as follows: 80-90 parts of phenolicresin, 10-15 parts of glass fiber, 2-4 parts of expansible graphite, 7-12 parts of a silane coupling agent, 10-15 parts of a foaming agent and 8-12 parts of a curing agent. The phenolic foam thermal-insulation material is mainly applied to thermal insulation materials of flat-plate solar collectors and has good heat resistance, insulativity, corrosion resistance, wide work temperature range and lower production cost; the brittleness of phenolic foam is improved and the compressive strength and mechanical performance of the phenolic foam are improved to a certain extent by the aid of the addedglass fiber and expansible graphite, the service life of the flat-plate solar collectors can be prolonged, and the quality stability of the flat-plate solar collectors can be improved.

The invention relates to a middle-sized aluminum mill ball and a preparation method. Materials are expressed by weight percentage, wherein, sintered bauxite accounts for 85 to 90 percent, dolomite accounts for 2 to 5 percent, chinastone accounts for 2 to 5 percent, clay accounts for 2 to 5 percent, and sodium humate accounts for 0.5 to 2 percent. The preparation method comprises the steps as follows: the materials are weighed according to material ingredients, and are added in a ball mill after being crushed; water is added in the ball mill, dispersing agent sodium tripolyphosphate accounting for 3 to 5 thousandths of total weight of the materials and polyvinyl alcohol solution accounting for 3 to 5 thousandths of total weight of the materials are added in the ball mill additionally, and grinding and staleness are carried out; pelletization is carried out through high tower spray drying, and powders are formed through isostatic pressing so as to obtain blanks; and the blanks are put in a kiln so as to obtain finished products through high temperature burning. The middle-sized aluminum mill ball and the preparation method adopt a series of strict manufacturing processes such as pulping, milling, forming, burning and the like, so that the obtained products have the characteristics of high strength, abrasion resistance, high temperature resistance, high pressure resistance, acid and alkali erosion resistance, low water absorption, stable chemical property and the like. The content of Al2O3 in the products is more than 70 percent, the volume density ranges from 3.0 to 3.03 g / cm<3>, the abrasion value is less than or equal to 0.3 thousandths, the compressive strength is greater than 1800 MPa, the volume density is high, the abrasion value is small, and the performances of the middle-sized aluminum mill ball are better than those of like products.

The invention discloses an internal-combustion engine variable geometry turbocharger nozzle ring component, comprising forks(1), a mounting plate(2) and a blade(3), wherein the side surface of the mounting plate(2) is provided with a plurality of groups of blades(3) which are evenly spaced and arranged on the same circumference and are in the same direction, each group of blades which consists ofat least three blades(3) and can be mutually opened and folded simultaneously; the other side of the mounting plate is provided with forks(1) which are connected with corresponding blades; because the blades are the three dimensional curved surface, air inlet passages for blades are continuously changed, the air input of the turbocharger is also continuously changed according to the working condition of the engine, thereby the engine can get proper amount of pressurized air under all conditions, which makes that the engine always runs under a reasonable condition, thereby realizing that the turbocharger increases the output power of the engine by 30 to 100 percent, reducing the emission of harmful gas by more than 10 percent, realizing that the fume emission reaches the emission standard of the European IV, lowering oil consumption by 5 to 10 percent and improving the economical efficiency of the automobile.

The invention discloses a downhole laser Raman while-drilling oil-gas detection system. The downhole laser Raman while-drilling oil-gas detection system comprises a data processor and a Raman instrument which are installed in a compressive cabin, the compressive cabin is fixed into a drill pipe nipple, the data processor is used for analyzing data of the Raman detection instrument and transmittingthe data to the outside, a host of the Raman instrument connected with the data processor through a circuit is installed in the compressive cabin, and a probe of the Raman instrument is in contact with a detection sample pool arranged in the drill pipe nipple. According to the downhole laser Raman while-drilling oil-gas detection system, hydrocarbon materials in upward drilling liquid are detected, oil-gas resources in a stratum can be quickly analyzed by comparing an obtained Raman spectrum with a Raman spectrum of crude oil, and by using the characteristics of fastness, convenience and accuracy of a laser Raman technology, the problems existing in the field of while-drilling oil-gas detection that a device is complex, the detection time is long, conditions for samples are harsh, and thedependence on a gas-liquid separation film is excessive are solved.

The present invention discloses a preparation method and application of Bacillus coagulans and a spore preparation cultured in high density, and belongs to the microbe technical field. A Bacillus coagulans strain is classified and named Bacillus coagulans JSSW-LA-07 and is preserved as CGMCC No.2602 in China General Microbiological Culture Collection Center. The Bacillus coagulans strain JSSW-LA-07 can produce spore under an aerobic condition and produce a small amount of L-lactic acid in the metabolism during a course of fermentation. The Bacillus coagulans strain can produce L-lactic acid with a higher purity under an anaerobic condition. The strain does not produce substances which can be harmful to human and cultured animals, has the characteristics of innocuity, on residue, no side effect and the like, has a great significance for production of green and safe livestock, fowls and marine products and improvement of cultivation ecological environment, and can be widely applied in the cultivation production of high yield, high quality, high efficiency, synusiologic and safe livestock, fowls and marine products, and the regulation and control of the ecological environment of cultivation.

The invention relates to a grinding material, in particular to a high-strength aluminum grinding ball with glue, which has the raw materials of: 70-80 percent of mature bauxite, 10-15 percent of immature bauxite, 4-7 percent of clay, 2-5 percent of feldspar, 0.5-2 percent of talcum powder, 1-5 percent of calcium carbonate, 0.5-2 percent of barium carbonate, dispersing agent-sodium tripolyphosphate accounting for 3-5 thousandth of the total weight of the raw materials, and adhesive accounting for 3-5 thousandth of the total weight of the raw materials. A preparation method comprises the following steps of grinding, pelleting, molding, burning and the like, wherein the grinding time is 20-30h, slurry is subjected to spray drying granulation through a high tower when in pelleting, the molding pressure is 320 MPa, the burning temperature is 1255 DEG C, heat preservation is carried out for 1h, and the slurry is air cooled to be room temperature and is output from a kiln. The product provided by the invention has high strength, wear resistant, high temperature and pressure resistance, acid and alkali erosion resistance, low water absorption and stable chemical properties. The content of AL2O3 in the product is more than 68 percent, the volume density is 3.0-3.03g / cm<3>, the wear loss is less than or equal to 0.25 thousandth, the compression strength is larger than 1850 MPa, and various performances are superior to those of similar products.

The invention discloses an ion beam sputtering film high-temperature strain gauge and a preparation method thereof. The ion beam sputtering film high-temperature strain gauge comprises a nickel-based alloy substrate, an insulating film layer, a nickel-chromium wire grid film layer, a protective film layer and an electrode film, wherein the nickel-based alloy substrate, the insulating film layer and the nickel-chromium wire grid film layer are sequentially stacked from bottom to top; the electrode film and the protective film layer are deposited at the top of the nickel-chromium wire grid film layer through an ion beam sputter coating process, and are arranged on the same layer; the nickel-chromium wire grid film layer is formed by etching a nickel-chromium film layer deposited on the insulating film layer through an ion beam sputter coating process; the electrode film is used for connecting a high-temperature-resistant wire. The ion beam sputtering film high-temperature strain gauge can perform stable measurement work at a high temperature.

The invention provides a preparation method of a water treatment agent. The preparation method comprises the following steps: preparing the following raw materials: phosphonate, polyquaternary ammonium salt, polycarboxylate, organic phosphonate and a sulfonate copolymer; adding phosphonate, polyquaternary ammonium salt and water to a reaction kettle and fully stirring the raw materials; heating the raw materials at a certain temperature to dissolve phosphonate and polyquaternary ammonium salt to form a colloid; cooling a colloidal mixture obtained in the step III, adding polycarboxylate and organic phosphonate while stirring the colloidal mixture, raising the temperature at the same time and stirring the materials at the temperature; cooling a mixture obtained in the step IV, adding the sulfonate copolymer while stirring the mixture at the same time and continuously stirring the materials after completing adding the sulfonate copolymer; discharging, cooling, drying and grinding a mixture, thus obtaining the water treatment agent. The water treatment agent has the characteristics of high efficiency, low cost, wide application range, no corrosion and no toxicity, and not only can be used for removing heavy metals in sewage but also can play a good role in removing the pollutants except the heavy metals.

The invention discloses a filtering membrane for treating volatile organic compounds. The filtering membrane comprises the following raw materials by weight part: 40-80 parts of feldspar, 30-50 parts of quartz, 10-20 parts of sodium silicate, 16-24 parts of activated carbon, 10-15 parts of zeolite, 8-12 parts of kieselguhr, 6-10 parts of carbon fiber, 2-3 parts of glass fiber, 0.4-0.6 part of catalyst, 0.5-0.8 part of cross-linking agent, 0.3-0.5 part of tackifier, 0.8-1.5 parts of plasticizer, 0.9-1.6 parts of flexibilizer and 0.4-0.6 part of stabilizer. The filtering membrane for treating volatile organic compounds provided by the invention is rich in active carbon, kieselguhr and zeolite, can directly absorb toxic gas including VOCs and has the characteristics of permanent use, high temperature and high pressure resistance, corrosion resistance, high absorption efficiency, excellent anti-seismic property and low preparation cost.

The invention provides a friction material for a magnetically levitated train and a preparation method and application thereof. The friction material for the magnetically levitated train is prepared from the following raw materials in parts by weight: 55-65 parts of copper powder, 1-5 parts of molybdenum disulfide, 1-5 parts of tin powder, 11-25 parts of a frictional component and 6-15 parts of alubricating component. By adding the frictional component and the lubricating component into the raw materials, the raw materials are reasonably proportioned, so that the friction material has very high friction coefficient and wear resistance, the stability of the friction coefficient is good, and the thermal decay in a high-temperature condition is reduced; meanwhile, the hardness of the friction material is low, and wear between the friction material and a brake disc or a magnetically levitated track can be reduced, so that the service lives of the friction material, the brake disc and themagnetically levitated track are prolonged. Furthermore, the stability of the friction coefficient of the friction material is good and wear is small. The magnetically levitated train adopting the friction material is safer to operate, can be used under circumstances of extreme climates such as severe cold or rainy and snowy climates, and is extremely high in applicability.

The invention discloses a warp beam dyeing system and a warp beam dyeing method. The warp beam dyeing system comprises a dyeing vat, a pump, a creel, a plurality of beams and water drain barrels, wherein the water drain barrels are sealed, the creel is arranged in the dyeing vat, the plurality of beams are connected onto the creel, the beams are hollow shafts, chambers of the beams are formed inside the hollow shafts, a plurality of through holes for a dyeing liquid to pass are formed in side walls of the beams, and the water drain barrels are arranged in the chambers of the beams. By the aid of the warp beam dyeing system, water consumption, steam consumption and chemical material consumption can be reduced.