1229results about How to "Impact resistant" patented technology

The invention relates to a spray polyurea high-performance waterproof paint which is characterized by comprising component A and component B, wherein the component A comprises semi-prepolymer formed by the reaction between 70-35 parts of polyisocyanate and 30-50 parts of polyether glycol, and 0-15 parts of diluent based on parts by weight; the component B comprises 50-70 parts of amine-terminated polyether, 20-40 parts of amine chain extender and 5-10 parts of filler; and the volume ratio between the component A and the component B is 1:1. Compared with the common spray polyurea high-performance waterproof paint, the spray polyurea high-performance waterproof paint has higher tensile strength, elongation at break, tearing strength and other physical properties, and not only is applicable to waterproof projects of common building projects, basic facilities and the like, but also is especially suitable for high-difficulty waterproof projects of large basic facility construction such as a high speed railway, a subway, a tunnel, water conservancy project and the like.

The invention discloses a built-in latticed steel frame exterior protected structural slab as well as a building and a production and construction method thereof. The built-in latticed steel frame exterior protected structural slab is of a solid core sandwich structure; the intermediate layer of the structural slab is a foamed cement filled layer; the two sides of the intermediate layer are combined with surface layers; the inner part of the foamed cement filled layer is provided with a built-in latticed steel frame; one side or two sides of the built-in latticed steel frame is or are covered with a steel wire mesh sheet or steel wire mesh sheets; the surface layer is a high-strength and anti-crack mortar strengthening surface layer internally doped with fiber silks and laid with fiber meshes; and a latticed steel frame net is formed by welding square steel tubes which are arranged vertically and horizontally at crossing intervals. The structural slab of the invention solves the problems that the existing building cover panel has low strength, is not convenient to be connected with a keel, is easy to fragment and has poor heat insulation property and the like, has the performances of energy conservation, environment protection, earthquake resistance, heat protection, heat preservation, heat insulation and sound insulation and the like, and can be widely applied in house buildings with lightweight-steel-construction wall bodies, floors and roofs.

The invention relates to borosiloxane and a preparation method thereof. According to the method, a hydrolysis solvent and a boron compound are mixed proportionally and added to a reactor, the temperature keeps from 10 DEG C to 35 DEG C, and a mixed monomer is slowly dropwise added under the stirring condition for a hydrolysis reaction; the dropwise-adding time is controlled in 3-6 hours, the reactor is slowly heated to the temperature ranging from 55 DEG C to 65 DEG C after the dropwise-adding is finished, a stirring reaction is performed for 1 hour, and still standing is performed; acid water on the lower layer is separated and neutralized to be neutral, a saturated NaCl solution is used for washing, and an oil phase material is obtained; reduced pressure distillation is performed to remove the solvent, a catalyst I is added, the mixture is heated to 110-130 DEG C, and the rearrangement reaction is performed for 3-5 hours; the mixture is heated to 150-160 DEG C, the splitting cyclization reaction is performed for 2-5 hours, the reaction is finished, the mixture is cooled, and a polyborosiloxane prepolymer is obtained; an end-capping reagent and a catalyst II are added to a system and heated to 110-130 DEG C, and react for 2-4 hours; and pressure is reduced to remove a low-boiling-point substance, and a polyborosiloxane resin is obtained. The borosiloxane and the preparation method have the advantages of good temperature resistance, ageing resistance, impact resistance, toughness and low-temperature flexibility, high adhesion and the like.

The invention discloses a magnesium-aluminum composite board and a method for manufacturing the same. The magnesium-aluminum composite board comprises at least one layer of magnesium or magnesium alloy plate and at least one layer of aluminum or aluminum alloy plate which are cast together by vacuum die-casting, and at least one two-layer joint surface which is provided with a mutually occlusive zigzag structure, namely the magnesium-aluminum composite board consists of a magnesium plate and an aluminum plate, or the magnesium alloy plate and the aluminum plate, or the magnesium plate and the aluminum alloy plate, or the magnesium alloy plate and the aluminum alloy plate by vacuum die-casting, and can be a structure with two layers, three layers or more than three layers. The method for manufacturing the composite board comprises the following steps: preheating a manufactured aluminum or aluminum alloy plate finished product as an insert of a die to certain temperature, and then putting the insert into a magnesium or magnesium alloy vacuumized die; matching the die in a vacuum pressure casting machine; pouring the molten magnesium or magnesium alloy molten; performing vacuumizing injection; and finally forming the magnesium-aluminum composite board. The joint surface of the composite board is provided with the mutually occlusive zigzag structure so that the layers are closely connected with each other sequentially and the combined strength is higher.

The present invention provides a new type anti-corrosion wear-resisting coating material for metal. Said coating material is made of petroleum fermentation nylon-1212 as base material and adding epoxy resin, solidifying agent, wear-resisting agent, lubricating agent, leveling agent, chemical inhibitor, optical stabilizing agent and pigment. Said coating material has excellent elasticity and flexibility, and has the good water-proofing property, impact resistance and can raise service life of machines, so that it has extensive application.

The invention discloses a formula of a high-strength polyester composite well cover, which comprises the following raw materials in parts by weight: 21-22 parts of unsaturated polyester resin, 8-9 parts of low shrink additive, 40-50 parts of heavy calcium carbonate, 1-1.5 parts of zinc stearate, 0.2-0.8 part of active magnesia, 0.12-0.28 part of curing agent, 0.2-0.8 part of carbon black, 10-20 parts of alkali-free glass fiber roving and 10-20 parts of glass fiber woven roving. A production method of the well cover of the invention comprises the following steps of: firstly preparing resin paste, preparing sheets by utilizing the resin paste, and then, forming the sheets by die pressing. The well cover of the invention has the characteristics of strong carrying capacity, shock resistance, ageing resistance, wear resistance, corrosion resistance, novel and attractive appearance, simple structure, environmental protection and the like, and basically solves the problem of well cover pilfering.

The invention provides a novel composite insulating thin-wall external wall board. The novel composite insulating thin-wall external wall board mainly comprises the components of fiber-woven-mesh reinforced concrete and an insulating-wall-body material, wherein the fiber-woven-mesh reinforced concrete consists of the components of high-performance fine concrete and a fiber woven mesh; the fiber woven mesh is used as a reinforced material; the insulating-wall-body material comprises one or all of a cement-based material insulating board and insulating material powder. The invention also provides a preparation method of the novel composite insulating thin-wall external wall board. The external wall board provided by the invention integrates the advantages of being long in service life, having a light-weight thin wall, capacity of heat insulation, sound insulation, vibration resistance, impact resistance, fire resistance, and water resistance, being simple in installation and surface decoration processes and the like, is applicable to outer-wall insulation of buildings and is a novel composite insulating building outer-wall structure with a wide application prospect.

Systems and methods are disclosed herein to provide zoom and / or autofocus lenses. The lens comprises: a first lens comprising of a nematic liquid crystal which is adapted to provide a variable index of refraction; and a second and a third lens, wherein the first lens, the second lens, and the third lens are situated in the fixed positions to provide a focal length for the lens, with a variable focus based on the index of refraction of the first lens. In accordance with an embodiment of the present invention, the lens is provided with at least one tunable lens. The focal length and / or focus of the lens may be varied without mechanically moving or changing the separation between one or more lens components. The method of the invention comprises: providing a first lens with a variable index of refraction; providing at least one second lens situated in fixed positions; and changing the index of refraction of the first lens to adjust the focus of the fixed lens.

The invention discloses an aramid rubber canvas fabric structure for high-strength conveyor belts and a production process of the aramid rubber canvas fabric structure. The aramid rubber canvas fabric structure comprises warps and wefts, aramid materials are adopted in the warps, at least four warps are paved in the belt length direction, nylon industrial yarns are adopted in the wefts which are crisscrossly paved on upper end faces and lower end faces of the warps, the wefts on upper and lower layers are tightly crisscrossly bonded to the warps by adopting bundling yarns, and a canvas fabric structure is obtained after secondary bath gum dipping; the production process includes single-layer canvas knitting, secondary bath gum dipping and reeling. Single-layer structures of the warps adopting the aramid materials and the weft adopting the nylon materials are knitted through bundling yarns, the high-strength conveyor belts with the strength higher than 2500N / mm are produced after secondary bath gum dipping, mechanical physical properties of the conveyor belts are improved, layer reduction and weight reduction of the conveyor belts are realized during the production process, the conveyor belts are adaptively high strengthened, less layered and lightweight, energy consumption is reduced, the production process is further simplified, and production efficiency is higher.

Provided are a gradient wear-resistant coating and a method for preparing the same. Co50+0.15% CeO2 powder, Co50+0.25% CeO2+6% Ni / Wc powder and Co50+0.4% CeO2+12% Ni / WC powder are used for preparing the gradient wear-resistant coating with the structure of a bottom layer, a transition layer and a wear-resistant layer on the surface of a workpiece in a coaxial powder supply manner and a laser cladding manner, and the wear resisting performance of the work surface of a part is improved. An ultrasonic vibration device and a contour tracing electromagnetic induction heating device are adopted in the cladding process. Ultrasonic oscillation of a certain degree is applied to the area close to a cladded area of the workpiece, the grain size of a cladding layer can be remarkably refined, residual stress can be remarkably eliminated, and therefore generated cracks are reduced, and a cladding layer structure with good performance is obtained. The contour tracing electromagnetic induction heating device can be utilized for effectively reducing thermal stress brought by the temperature gradient of the cladding layer and relieving the cracking tendency. According to the technological parameters of the ultrasonic vibration device, the work frequency ranges from 10 kHz to 20 kHz, the maximum output power is 1,000 W, and the pneumatic pressure ranges from 0.3 MPa to 0.6 MPa. According to the technological parameters of the contour tracing electromagnetic induction heating device, the voltage is 380 V, the frequency is 60 Hz, and the heating temperature ranges from 150 DEG C to 1,000 DEG C.

The invention discloses a dipped canvas fabric structure in a three-dimensional structure for a heavy-duty conveyor belt and a production process thereof. The dipped fabric structure is characterized in that an upper layer and a bottom layer adopt ground-facing warps (1) in the plain weave structure and weft (2) interwoven with the ground-facing warp, a straight warp (3) in the straight warp structure is utilized as an intermediate layer, a bundling warp (4) is connected with the weft (2), and the upper layer, the intermediate layer, the bottom layer and the bundling warp form the three-dimensional structure. The production process comprises the following processes: the process of weaving a fabric on a machine: adopting double warp shafts to send a warp woven cloth; and the process of stipulating a dipping formula and preparing, wherein a dipping solution is a mixture of an RF (resorcinol-formaldehyde) resin water solution generated by virtue of condensation polymerization of hydroxyphenol and formaldehyde and VP (vinyl pyridine) latex (L), the total content of solids is 18-22%, the pH value is 9-11, and the ratio of the RF to the L is (1:5)-(1:7). Polyester dipped canvas in the three-dimensional structure is especially applicable to production of the heavy-duty rubber conveyor belts and has the characteristics of tear resistance, puncture resistance and impact resistance.

The invention discloses a composite board made from waste plastics and fly ashes and a method for producing the same. The composite board is prepared from the waste plastics and the fly ashes according to certain weight ratio. The main raw materials for producing the composite board comprise the waste plastics and the fly ashes, wherein the waste plastics are discarded in industrial production and in human life and comprise waste polypropylene plastic, waste polyethylene plastic, waste polystyrene plastic and waste polyvinyl chloride plastic and the like, and the fly ashes are discharged by coal-fired power plants and the chemical industry; the main raw materials are manufactured into the composite board through crushing and hot pressing; the manufactured composite board meets the national standards for construction templates, not only reduces the environmental pollution caused by industrial fly ashes and plastic wastes, but also can be applied to replacing wooden construction templates or steel construction templates widely used in the prior building operations, and not only has the advantages of low production cost, light weight, high strength, impact resistance, and easy demoulding, but also 'turns harmful into beneficial and changes waste into valuable', and significantly speeds up the process of recycling wastes in China.

The invention discloses a hyper-high strong abrasion-proof casting material, which comprises the following parts: corundum, carborundum, pulverized corundum, bauxite powder, silicon oxide powder, pure calcium aluminate cement and additive, wherein the adding quantity of each component is forced to homogenize, which couples metal and non-metal material in the constructing course.

This invention relates to a thermoplastic polymer thrust gasket and its preparation method including: weighing thermoplastic polymer and a solid lubricant and mixing them with a high speed mixer, then putting and sizing them in a double-screw extruder and adding reinforced fiber and whisker in it to prepare a material of high temperature resistance, high strength, anti-strike, large elasticity, low friction coefficient and low abrasion and thrust gaskets of complicated structure and different sizes can be made by injection forming at one run with the special material.

The invention discloses an adaptive micro-perforated plate sound absorber and a real-time micropore adjusting method thereof. The sound absorber comprises a micro-perforated plate, wherein micropores are uniformly distributed on the micro-perforated plate; the micro-perforated plate is a piezoelectric film micro-perforated plate, is made from a piezoelectric film, and is provided with a circuit lead end connected with a piezoelectric film electrode; the circuit lead end is connected with an active control circuit; the active control circuit comprises a piezoelectric film driving circuit, an adaptive controller and a noise detector which are connected with the circuit lead end in turn; and a cavity formed by the piezoelectric film micro-perforated plate and side walls and a rear wall at the periphery of the plate is a piezoelectric film micro-perforated plate resonant sound absorption structure. The size of the micropores on the piezoelectric film micro-perforated plate is adjusted in real time through the piezoelectric effect of the piezoelectric film, so that the aims of optimizing the sound absorption coefficient of the micro-perforated plate resonant sound absorption structure in real time according to the sound wave characteristic of incident noise and greatly expanding the effective sound absorption frequency band of the micro-perforated plate resonant sound absorption structure can be fulfilled.

The present invention is weaving process of three-dimensional conic-casing fabric and its product. The weaving process includes the following steps: 1. pre-setting warp yarns based on the fabric structure and in tubular fabric weaving process; 2. introducing weft yarns in planar helical wefting method and interweaving with preset warp yarns; 3. setting warp cutting points on two sides based on the planar shape of the fabric and performing copying warp cutting operation; and 4. repeating the steps 2 and 3 until finishing the weaving of the three-dimensional conic-casing fabric. The present invention has short weaving period, low cost, simple operation, high efficiency, high adaptability and other features, and the fabric has high integrality, high damage tolerance, high impact resistance and other advantages.

The invention provides an autothermal reforming hydrogenation catalyst and a preparation method thereof. The catalyst takes one or more than one of platinum precious metal Pt, Pd, Ru, Rh and Ir as a main catalytic active component, and takes one or more than one of alkali metal and / or alkaline earth metal oxide Na2O, K2O, MgO, CaO, SrO and BaO, as well as a CeO2-based binary or ternary rare earth compound as a catalytic promoter. The catalyst can be applied in the form of a granular catalyst, and the entire catalytic active components and the catalytic promoter can also be borne on monolithic carriers such as honeycomb ceramics, metallic honeycomb, metal foam and so on, to produce a monolithic catalyst. The catalyst provided by certain embodiments has the advantages of high activity, low CO content in product gas, impact resistance, and long service life; and the quality of the catalyst can be further improved through the preparation method and a use method after the improvement, for example, a CeO2-based compound oxide is produced into a single-phase sosoloid, the catalyst is reduced before the use, etc.

The invention belongs to the fields of metallurgy and inorganic nonmetal materials, and provides a continuous casting and rolling method and device for producing glass ceramics by utilizing blast-furnace molten slag. The method comprises the following steps of (1) transferring a temperature interval when the blast-furnace molten slag is maintained in a blast-furnace tapping hole to a component tempering mixing pool, adding and uniformly stirring corresponding modifiers, coloring agents and nucleating agents, and ensuring that the molten slag stays in a high-temperature interval; (2) driving the molten slag to enter a rolling forming area through a slag port and then enter a primary cooling area, and ensuring that the molten slag enters a nucleating area before the temperature of the surface of a shell is not lower than 500DEG C; (3) continuously heating to a crystallization area; (4) entering a cooling area, and cooling the molten slag to obtain a formed product; (5) cutting the formed product in a fixed size and polishing the surface of the formed product to obtain finished product glass ceramics. By adopting the continuous casting and rolling method and the device, the blast-furnace slag and solid waste resource are utilized, the produced glass ceramics have the advantages of high strength and acid and alkali corrosion resistance, and the economic benefit and the environment-friendly benefit are obvious.

A manufacturing method of a carbon fiber metal composite laminated plate relates to a manufacturing method of a fiber metal composite laminated plate. The method aims at solving the problems that no manufacturing methods for manufacturing aircraft structural material with high specific stiffness, high specific strength, tenacity and workability exist in China. The method comprises the following steps of: carrying out surface treatment to three pieces of metal plates; winding a carbon fiber composite material layer which is soaked in liquid cement on one of the metal plates, wherein, the liquid cement is prepared by epoxy resin, a metaphenylene diamine curing agent and an anhydrous alcohol solvent according to the mass ratio of 1:0.1 to 0.18:0.15 to 0.2; fixedly arranging another two metal plates on the upper surface and the lower surface of the carbon fiber composite material layer so as to be integrally put into a mould, and then treated with mould assembling, drying, solidification by adopting the method of gradient temperature increasing, and demoulding. The manufacturing method of the invention is simple and is easy for operation. The carbon fiber metal composite laminated plate manufactured by the method of the invention has the advantages of high specific stiffness, high specific strength, also high tenacity and workability of metal material, good fatigue property, and good damage tolerance capability.

A composite building plate able to bear load is composed of the external frame, foamed cement layer filled into the frame, and surfacial layers, and features that several steel columns or beams are unidirectionally arranged in the frame, which have through holes for allowing the foamed cement to penetrate through them. Its advantages are light weight, high weatherability, insulation to heat and sound, and resistance to water, acid and alkali, and low cost.

The invention discloses a benzoic acid modified waterborne alkyd resin and a preparation method thereof and also discloses an application of the benzoic acid modified waterborne alkyd resin in preparing benzoic acid modified waterborne alkyd amino resin baking varnish and an application method thereof. The benzoic acid modified waterborne alkyd amino resin baking varnish as waterborne baking varnish for ferrous products has the advantages of good stability and convenient, safe construction, no toxic solvents releasing, and the like, also has good gloss, weather resistance, water resistance, acid-base resistance, scrubbing resistance, high adhesive force and impact resistance after forming a film and is superior to the traditional solvent-based baking varnish in combination property; and in addition, the invention overcomes the defects of low hardness and poor gloss of the traditional waterborne alkyd resin and has simple and easy manufacturing process, is environmental-friendly and saves the energy by using water as a solvent.

The invention relates to a flame-retardant fiber board and a manufacturing method thereof. The flame-retardant fiber board is prepared from the following raw materials in portion by weight: 80 to 120 portions of fiber, 80 to 120 portions of magnesia, 80 to 200 portions of water solution of magnesium sulfate, 5 to 30 portions of active silica, 0.5 to 2 portions of organosilicon waterproof agent, and 0.5 to 1.5 portions of plasticizer. The manufacturing method comprises the steps: 1) preparing the fiber, namely cleaning and drying crop straws, wood branches or wood processing residual materials, and then obtaining the fiber through the crushing by a crushing machine; 2) preparing an inorganic adhesive, namely mixing the magnesia, the water solution of the magnesium sulfate, the active silica, the organosilicon waterproof agent and the plasticizer, and stirring the mixture to obtain the inorganic adhesive; 3) mixing the fiber and the inorganic adhesive prepared through the step 1 and the step 2, stirring the mixture, and paving the mixture after the screening by a screening machine; 4) paving a reinforcing network on the upper and lower surfaces of a paved slab; and 5) finally performing hot pressing on the board paved with the reinforcing network for 10 to 25 minutes at a temperature of between 100 and 110 DEG C at a pressure of between 12 and 30MPa to obtain the flame-retardant fiber board. The flame-retardant fiber board has broad application field.

The invention discloses an aramid fiber composite material solid tyre, a tread rubber layer composite material for preparing the solid tyre, a tread base rubber composite material and manufacturing methods of the tyre-surface rubber-layer composite material and the tread base rubber composite material. The solid tyre comprises a tread layer, a buffer layer, a tread base layer and a tyre internal steel ring; the tread layer is attached to the buffer layer, the buffer layer is attached to the tread base layer, and the tyre internal steel ring is embedded in the tread base layer; and the tread layer employs the tread rubber layer composite material, and the tread base layer employs the tread base rubber composite material. Aramid fiber possesses characteristics of high strength, good wear resistance, good temperature resistance and impact resistance, basalt fiber possesses high-temperature resistance characteristic, rubber possesses extremely good buffering performances, the above three materials are combined and the characteristics of the three materials are provided, and the solid tyre prepared from the composite material can be used on a high-temperature pavement or tropical region for a long time, is guaranteed to be uneasy to age, and is prolonged in service life.

The invention discloses a heat-resisting creep-resisting ultra-high molecular weight polyethylene constant-strength fiber. The fiber comprises ultra-high molecular weight polyethylene powder, graphene, a cross-linking agent, a curing agent, an initiator and an anti-oxidant. The preparation method comprises the following steps: swelling the ultra-high molecular weight polyethylene powder by a solvent so as to form pores; then adding a composite modifying agent wetted by the cross-linking agent, the curing agent, the initiator, the anti-oxidant, the graphene and the solvent together; penetrating the composite modifying agent evenly into the ultra-high molecular weight polyethylene powder pores, and mixing evenly; and finally, carrying out irradiation crosslinking to obtain the heat-resisting creep-resisting ultra-high molecular weight polyethylene constant-strength fiber. The heat-resisting creep-resisting ultra-high molecular weight polyethylene constant-strength fiber has the comprehensive performances of heat resistance, creep resistance, abrasion resistance, impact resistance, self lubrication, corrosion resistance, low temperature resistance, hygiene, no toxicity, difficulty in adhesion and water absorption and relatively low density, is wide in applicability, and is long in service life.

The invention discloses a composite material of an imitated glass reinforced plastic, which comprises a basic layer, the basic layer comprises the following ingredients by weight: 120-160 parts of active light calcium carbonate powder, 60-130 parts of recovered plastic, 30-60 parts of glass fiber and / or basalt fiber, 10-30 parts of coupling agent, 1-30 parts of foaming agent, 30-60 parts of processing auxiliary agent and 1-5 parts of stabilizing agent. The composite material also comprises a superficial layer and a filling layer. The composite material can replace a plurality of glass reinforced plastic products, steel products, stone products, ceramic products, wood products and plastic products. The composite material possesses the characteristics of wood, such as nailing, sawing, pasting and shaving, and enables secondary processing; and has the characteristics of B-1 grade fire protection, insect protection, no fumigation, water resistance, corrosion resistance, rust resistance, sound insulation, heat insulation, light weight, high intensity, impact resistance, strong plasticity, good physical properties, long service life, no formaldehyde containing, no radiation, acid and alkali resistance, hot and cold resistance, ultraviolet resistance, no paint requirement, easy construction, recoverable property, regeneration and utilization and the like.

The invention discloses a glass-ceramic decoration face light ceramic composite brick and a preparation method thereof. The glass-ceramic decoration face light ceramic composite brick comprises a heat-preserving base layer and a decorating wear-resisting layer arranged on the heat-preserving base layer. The heat-preserving base layer is a blind hole foaming ceramic layer, the thickness ranges from 4 mm to 60 mm, and the volume density ranges from 230 Kg / m<3> to 980 Kg / m <3>; the decorating wear-resisting layer is a glass-ceramic layer, the thickness ranges from 2 mm to 4 mm, and the volume density ranges from 2000 Kg / m<3> to 3000 Kg / m <3>; a bottom material of the heat-preserving base layer and a face material of the decorating wear-resisting layer are formed by secondary material distribution and one-time formation through a pressing machine and one-time firing through a roller kiln. The base layer of the composite brick has the heat-preserving, heat-insulating and sound-insulating performance, the decorating glass-ceramic layer has the wear-resisting property, the anti-skid property, shock resistance and the like, is excellent in decoration performance, and can be widely applied to heat-preserving decoration of external wall lower layers, indoor wall faces and indoor grounds, while existing heat-preserving materials and decoration materials do not have the properties and the application; solid waste generated by exploiting and processing perlite is adopted, the production process saves energy and is environmentally friendly, and sustainable development of perlite industries can be promoted.

The invention discloses a porous ceramic-loaded catalyst used for biomass catalytic liquefaction, and belongs to the technical field of porous functional ceramic. A natural inorganic catalyst is taken as an active ingredient of the porous ceramic-loaded catalyst, is subjected to smashing, grinding, and screening, and is mixed with a ceramic aggregate, a pore forming agent, and a binder at a mass ratio of 30-40:40-50:5-10:10-15; an obtained mixture is processed so as to obtain a porous ceramic body material; the porous ceramic body material is subjected to drying, sintering, and activation so as to obtain the porous ceramic-loaded catalyst; wherein the active ingredient is one or a combination of a plurality of ingredients selected from dolomite, limestone, diatomite, kaoline, olivine, cordierite, montmorillonite, hydrotalcite, carnallite, beryl, celestite, and gypsum at random, and dolomite and montmorillonite preferably. The porous ceramic prepared via above steps can be taken as a catalyst of biomass pyrolysis liquidation processes and a reactor internal heat carrier at the same time, possesses activity on biomass pyrolysis processes, is capable of increasing bio oil yield, improving bio oil quality, and reducing biomass pyrolysis reaction conditions.

The invention discloses a production method used for a plastic ship; the ship material of the plastic ship is polypropylene (PP) or flame retardant PP, modified PP, polycarbonate (PC), flame retardant PC, anti-aging ABS, PC / ABS alloy, PVC, PET, PBT, PPS, PA, glass fiber reinforced nylon and the like; the seat lining material on the plastic ship can be expandable polystyrene foam and the covering material thereof is PP; the quant head material is PP; the quant rod material is PP; the production method of the plastic ship has three types: mold forming method, cutting and welding forming method and injection molding method; the plastic ship has the advantages of light weight, anti-collision, anti-corrosion, anti-aging, convenient carrying and low production cost, and can be widely applied to the fields such as military affairs, succor, on-water motion, on-water game, and the like.

The invention discloses a multi-component stink exhaust gas biological purifying method which adopts two-stage biological purifying treatment. The method comprises the steps of: treating exhaust gas firstly through a biological bubble column and then through a biological filter column; and discharging tail gas after two-stage biological treatment. The biological bubble column utilizes microbe fungicide containing microbe thallus. Exhaust gas is diffused through a nozzle of the bubble column, and then stink components in the exhaust gas are purified and treated with the microbe fungicide in a bubble reaction district. The nozzle of the bubble column is in a bubble pulse valve structure. Absorption liquid containing thallus is used in the bubble absorption column, which not only can purify hydrogen sulfide and organic sulfide, but also can chemically absorb ammonia-class alkaline exhaust gas components in the exhaust gas; and thus, the purifying effect is improved. The invention has theadvantages of large operation flexibility and impact resistance, and the formal stable operation of the succession biological filter columns is ensured. The invention can be used for efficiently purifying the exhaust gas containing mixed stink components, such as sulfide, ammonia, VOCs (volatile organic chemcials), and the like, and is suitable for effusing stink exhaust gas in various sewage treatment plants and effusing exhaust gas in pump stations, and the like.

The invention relates to an LED dimming device which is applicable to a controllable silicon dimmer. The LED dimming device comprises a rectifier, a fictitious load circuit, a zero-crossing detection circuit, a high frequency transformer, a main power supply drive integrated circuit, a secondary rectification and filter circuit, a secondary power supply drive integrated circuit and an average voltage detection circuit. The invention has the beneficial effect that the LED dimming device is capable of realizing the brightness adjustment of an LED lamp by the controllable silicon dimmer and has the advantages of good dimming effect, long service life, simple structure and environmental protection and energy saving.