291results about How to "Guaranteed porosity" patented technology

The invention provides an automatic and uniform material loading method and an automatic and uniform material loading device which is used in the process of producing white spirit, and aims to achieve effects that the process which is manually performed in the prior art is completely or partially replaced by the method, the uniformity and the looseness of loading fermented grains are simultaneously guaranteed, and the shortcomings of the prior art are overcome. The automatic and uniform material loading device comprises a steaming barrel, a loading device and a uniformizing device, wherein the steaming barrel comprises a steaming barrel body and a bottom pot which are separable; the bottom of the steaming barrel is supported by a rotary supporting piece and can rotate; the loading device consists of a material conveying device, a charging controller and a scattering device; the uniformizing device consists of an agravic levelling device which is provided with a stirring paddle and liftable. By matching the steaming barrel, the loading device and the uniformizing device, materials are automatically loaded, and the uniform and stable looseness of loading the materials is guaranteed.

The invention discloses a method for preparing silicon-aluminum aerogel by using fly ash as a raw material through normal pressure drying, which comprises the following steps of: mixing, grinding and calcining the fly ash and sodium carbonate to enable acidic oxides and amphoteric oxides in the fly ash to react with the sodium carbonate, then dissolving a sintered material with hydrochloric acid, and carrying out suction filtration to obtain a filtrate, i.e. silicon-aluminum sol; settling and aging the silicon-aluminum sol to form silicon-aluminum gel; soaking with circulating water to remove chloride ions; soaking with an ethanol solvent instead of water; soaking with an organosilicon compound as a surface hydrophobic agent for surface hydrophobic treatment; and preparing the silicon-aluminum aerogel through normal pressure drying. The invention uses the industrial waste fly ash as the raw material to replace an organosilicon source with high price and a certain toxicity, and uses normal pressure drying to replace supercritical drying, so the safety performance is greatly enhanced, the production cost is greatly lowered; and the method has simple process and convenient operation and is suitable for large-scale production. The prepared silicon-aluminum aerogel can be widely applied to the fields of heat insulating materials and the like.

The invention discloses a method for constructing a cable system of a spatial self-anchoring type suspension bridge. The method is characterized in that a cat path and a main cable are arranged on the vertical surface to form a hollow cable type; and the completed bridge linearity of the main cable is formed through traversing the main cable and stretching slings. Through the proposal, the method has obvious technical characteristics: 1. the main cable is arranged on the vertical surface and is favorable for braiding the cable; 2. the cable tightening operation is carried out on the vertical surface so as to be favorable for tightening the cable and ensuring the gap rate; and 3. firstly, a temporary inhaul cable is used to traverse the main cable in order that the main cable linearity is close to a completed bridge state; and secondly, the sling is stretched and is favorable for controlling the spatial angle of a cable clip and positioning the sling in a transverse oblique anchor tube. The method has the advantages that the construction method is simple, is favorable for the braiding and molding of the main cable and the spatial positioning of the angles of the cable clip and the slings and realizes the completed bridge linearity of the main cable.

The invention relates to a lead plaster for a low temperature resistant lead storage battery for an electric scooter and a preparation method of the lead plaster. The lead plaster comprises an anode lead plaster and a cathode lead plaster, wherein the anode lead plaster comprises the following components in parts by weight: 950-970 parts of lead powder, 80-86 parts of 1.3-1.4g/cm<3> sulfuric acid, 110-125 parts of pure water, 3.0-4.0 parts of colloidal graphite, 30-50 parts of red lead, 1.0-1.5 parts of tin sulfate, 0.5-1.0 part of sodium sulfate and 0.7-0.9 part of short fiber; the cathode lead plaster comprises the following components in parts by weight: 1000 parts of lead powder, 75-81 parts of 1.3-1.4g/cm<3> sulfuric acid, 105-120 parts of pure water, 0.6-0.8 part of short fiber, 6.0-7.0 parts of barium sulfate, 1.0-1.5 parts of Norway lignin, 4.0-5.0 parts of humic acid, 3.0-5.0 parts of acetylene black and 1.0-1.5 parts of semi-carbonized saw dust. According to the lead plaster and the preparation method thereof, the acceptance performance when the battery is charged at low temperature is improved and the discharge capacity is increased; the lead plaster disclosed by the invention is applicable to low-temperature environment and is especially suitable for northeast and northwest regions in China.

The invention mainly discloses a novel ventilated slow-resilience sponge, in particular relates to a ventilated slow-resilience sponge which ensures the aperture ratio of a product by adjusting raw materials and the proportioning of a product, so that the aperture ratio of the product is improved to over 95 percent without using a pore-forming agent or pore-forming silicone oil, and the ventilation property of the product is improved. When the ventilated slow-resilience sponge is used, a human body contacts the product and obviously feels that the product is floppy; and the product is more comfortable after being used for a long time, particularly in muggy summer.

The invention provides a semi-solid lithium flow battery reactor. The semi-solid lithium flow battery reactor comprises a battery frame and an electrode cavity. The battery frame is a cuboid with the hollow interior. The electrode cavity comprises an anode cavity and a cathode cavity. The electrode cavity is filled with continuously or intermittently flowed electrode suspension liquid. A straight-through insulation cavity is installed between the anode cavity and the cathode cavity. The height of the insulation cavity is 0.1-1 mm, and the interior is filled with intermittently flowed electrolyte. The invention further provides an electrolyte circulating system based on the battery reactor and a working method. Through the pressure of the electrolyte in the insulation cavity to a porous current collector is regulated by the electrolyte circulating system, the situation of the battery micro-short or polarization increase can be solved, the battery polarization can be effectively reduced, and the battery safety is improved.

The invention relates to a kind of decellularized blood vessel matrix gel, a preparation method therefor and applications thereof. The preparation method is as follows: first, after blood vessel outer membranes and anadesma are removed, the blood vessels are cut into blood vessel pieces, the blood vessel pieces are subjected to decellularized treatment in a TritonX-100 solution, then subjected to freeze drying, smashed into powder, and filtered with a 60-mesh screen, and decellularized blood vessel matrix powder is obtained; second, the decellularized blood vessel matrix powder is placed in a hydrochloric acid solution containing pepsin with a concentration of 0.09-0.11%, and subjected to digestion for 66-78h, a sodium hydroxide solution is added to neutralize hydrochloric acid, then PBS is added to balance ion concentration, finally, the gel solution is placed in an incubator with a temperature of 37 DEG C for gel forming. The decellularized blood vessel matrix gel has good molding capability and mechanical properties, the interior is loose, the gel has certain poriness, and the collagen fiber has appropriate diameters and good stability. The gel can meet requirements of preparation of medicines treating ischemic diseases, support materials of tissue engineering and/or cell culture.

The invention relates to the field of diaphragm materials and particularly relates to a preparation method and application of a polyolefin/nanocrystal cellulose composite diaphragm. The preparation method comprises the following steps: (1) preparing a nanocrystal cellulose sodium dispersion liquid; (2) performing surface pretreatment on a substrate membrane; and (3) performing coating treatment on a modified porous membrane. The polyolefin/nanocrystal cellulose composite diaphragm is applied to the field of lithium ion batteries. The length of nanocrystal cellulose is regulated by virtue of changing the formula of acid hydrolysis, so that the porosity and ionic conductivity of the composite diaphragm are improved. By virtue of applying an LBL technology, the thickness of the composite diaphragm can be changed by virtue of regulating the times of coating the surface of the modified porous membrane, and the nanocrystal cellulose has favorable mechanical strength, so that the puncture-resistant strength and tensile strength of the composite diaphragm and the heat resistance of the substrate membrane are greatly improved.

The invention discloses a technique to brew aromatic wine, based on traditional technique, which relates to reform and innovate to draw water, steam supplementary material, distill to obtain wine, and put dreg into cellar clear layered. Wherein, the said four steps are technical core; the cellar is constructed on bottom of pond near wall with inner wall fixed and cover on its head with center hole inserted hollow pipe; after putting dreg into cellar, sealing the pipe and cellar for fermentation; before putting out, stripping off the yellow mud to show pipe mouth, and taking out seal; inserting sucker to draw the yellow water in cellar by connected pump as possible as far; mixing, obtaining wine, storing in cellar; all processes with Zeng(traditional measuring tool) as unit. The method can decrease labor strength, save material, and increases wine quality.

The invention provides a nitrogen-containing tridentate ligand organic microporous polymer material as well as preparation and an application thereof and particularly provides an organic porous polymer which has a triptycene structural unit and a 2, 6-di(2-benzimidazolyl) structural unit. The triptycene structural unit and the 2, 6-di(2-benzimidazolyl) structural unit have the arrangement mode shown in a formula I. The organic porous polymer provided by the invention is a good adsorbing material and catalyst-loading material and has a good application prospect in metal catalyst loading, particularly noble metal loading.

The invention relates to a preparation method of a ceramic filtration supporter for the filtering dust removal of high temperature gas. The preparation method comprises the steps of mixing materials, formation and firing, the materials include aggregate, high temperature binding agent and pore forming agent, wherein the aggregate is spherical granule aggregate, the formation adopts isostatic compaction with the formation pressure being controlled in a range from 40 to 150 MPa and the firing temperature being controlled in a range from 1000 to 1300 DEG C, and the heat is preserved for 2 to 3 hours. The resultant ceramic filtration supporter has appropriate pore diameter and porosity, good gas permeability, high strength and good overall properties.

The method provides a post-finishing method for a bag type dedusting filter material for industrial gas cleaning, so as to solve the problem that the bag is easy to paste because the existing filter material can not adapt to the work conditions containing oil and water in the prior art. In the invention, long chain alkyl benzene SE2203 silicone oil and PTPE (polytetrafluoroethylene) emulsion are used to prepare maceration extract to carry out dipping post-finishing on woven cloth, punched felt and hydroentangled felt, thereby giving full playing of oleophobic and hydrophobic properties and chemical stability and combining with the better smoothness and flexibility of long-chain high silicon. In the invention, the rating of temperature of the selected materials is higher than that of the homometrical factors, thereby overcoming the problem that when the traditional post-finishing process is operated at high temperature, parts of the non-thermostability solid contents are coked to form a preservative film gap; and the material in the invention has extremely small grain size, which enables the fluorinion to have excellent dispersibility. By using the post-finishing process, the leveling property and surface degree of freedom of the fiber are improved, and ash removal of the filter material is easier, the corrosion resistance, water-repelling property, grease-proofing property and anti-aging property are improved, the filtering material is easy to clean, the filtering effect is improved and the service life of the filtering material is prolonged.

A device with a griddle and a process for generating power by efficiently recycling sinter waste heat relate to the technical field of waste heat power generation. The device comprises a sinter cooling system, a waste heat power generation system and a smoke system. The sinter cooling system and the waste heat circulation power generation system are connected through the smoke system to form a loop. The process includes 1) sinter cooling, 2) the smoke system and 3) waste heat power generation. The device and the technological process for waste heat power generation have the advantages of completely utilizing waste heat discharged in the sinter cooling process, obviously increasing power generation quantity, obviously reducing system self power utilization rate and being remarkable in energy-saving effect.

The invention discloses a production process of preparing high-purity silica by virtue of quartz sands. The production process comprises the following steps: 1) crushing; 2) calcining; 3) water quenching; 4) grinding; 5) magnetic separation; 6) electrostatic separation; 7) pickling; 8) cleaning by deionized water; and 9) drying, wherein scrubbing and desliming are carried out by adding an abrasive while crushing, and the abrasive includes boron carbide, silicon carbide and corundum; heat used by drying is from waste heat in a calciner, a heat collection cabin is arranged on the outer wall of the calciner, and the heat is introduced to the ninth procedure for drying with the arrangement of a plurality of blowers and a thermal insulation pipeline, and a layer of polyimide membrane is arranged on the inner wall of the thermal insulation pipeline. By improving the traditional process, the production process is capable of optimizing a technical formula and integrating procedure structures. In addition, by fully utilizing the waste heat of equipment, a novel green and environmental-friendly process is provided, so that while ensuring high purity of the silica, the production energy consumption is greatly lowered, the production cost is saved, and the production efficiency is improved.

The invention discloses an assembly type grass-planted concrete precast block and a construction method of an ecological bank adopting the same. The assembly type grass-planted concrete precast blockis composed of a convex block body and concave block bodies, wherein the convex block body and the concave block bodies are connected into a whole, the convex block body is located in the middle, theplurality of concave block bodies are arranged next to the convex block body, and the convex block body and the concave block bodies are made of ecological concrete with ecological holes; greening soil coverings suitable for the growth of herbaceous plants are laid on the upper surface of the convex block body and the upper surfaces of the concave block bodies respectively, the herbaceous plants take roots on the greening soil coverings and in the convex block body and the concave block bodies; and the concrete precast blocks can be spliced and clamped together. Meanwhile, the invention provides a construction method of the ecological bank adopting the assembly type grass-planted concrete precast block according to the characteristics of the assembly type grass-planted concrete precast block. The assembly type grass-planted concrete precast block has the advantages that the structure is reasonable, the coverage rate of the planted-grass is high and the construction is convenient and rapid; and the assembly type grass-planted concrete precast block can be used for ecological protection of medium and small rivers, and can also be used for ecological protection of channels, lakes, reservoirs and ponds.

The invention discloses a loose blasting type hot ore development system and a construction method thereof. The hot ore development system comprises a ground lifting system, a large-diameter verticalshaft, an underground high-temperature high-pressure heat exchange water tank, a heat exchange flow guide channel, a water-rock geothermal flow storage layer, a movable sealing device and the like, wherein the water-rock geothermal flow storage layer is formed by access blasting tunnels and a main tunnel. The hot ore development system is provided with an injection pipeline and a collecting pipeline along the inner wall of the large-diameter vertical shaft, the injection pipeline communicates with the collecting pipeline through the heat exchange flow guide channel of the underground high-temperature high-pressure heat exchange water tank in dry hot rock, the circulating main tunnel is arranged around the underground high-temperature high-pressure heat exchange water tank, and the plurality of rows of access blasting tunnels are horizontally arranged along the main tunnel, a hot ore blasting fracture flow storage layer is formed through caving mining method loose blasting, moreover, the movable sealing device is arranged above the vertical shaft of a blasting layer, through a U-shaped pipe principle, through the injection pipeline and the collecting pipeline, cold water and hot water in the high-temperature high-pressure water tank exchange heat energy, the water with the heat energy is conveyed to the ground to be converted into electric energy for people to use, and dual heat exchange is realized.

The invention discloses high-precision air filter paper which comprises body paper and an impregnant for impregnating the body paper, wherein the body paper comprises glass fiber, alkali treated cotton linter pulp, polylactic acid fiber, a defoaming agent, a dispersing agent, a wet strength agent, a waterproof agent and a brightener; the impregnant comprises phenolic resin, styrene-acrylic emulsion, normal hexane, methanol, N-hydroxymethyl acrylamide and a wetting agent. The invention further discloses a preparation method of the high-precision air filter paper. Through the preparation method, the obtained high-precision air filter paper has the characteristics of relatively high filter precision, relatively low filter resistance, relatively high pollutant carrying capacity, long service life and good quality stability.

The invention discloses a drilling device for underground gas holes and a drilling method thereof. Firstly, sleeve holes are drilled in a drainage area; hole sealing sleeves are fixedly sealed in orifices; then, the hole sealing sleeves are connected with drilling devices; during drilling, the internals of drilled holes are pressurized through hollow drill rods and filled with cooling liquid to achieve a hole wall supporting effect; after holes are drilled through rock layer sections, wall protecting mud is injected in rock layers in a pressurized mode, and a certain static water pressure is formed in the holes to achieve a rock wall stabilizing effect; clear water is used for drilling after entering coal seams; water and slag generated in the drilling process are separated by a water-slagseparation device to realize secondary utilization of resources; after final holes are drilled in, drainage pipelines are replaced in the holes in a pressurized state for flow pressure-reduced drainage; and through the flow pressure-reduced drainage method, the problem of blockage of hole wall gaps by the speed-sensitivity effect can be prevented, the gas quantity attenuation efficiency of the gas holes is reduced, and the gas extracting quantity is increased.

The invention discloses a method for preparing high-strength boron carbide porous ceramics. The method comprises the following steps: (1) proportioning raw materials: 80-95wt% of boron carbide powder,0-3.0wt% of suspending agent, 3-15wt% of binder, 5-12wt% of sintering assistant and 0-12wt% of lubricant; (2) adding distilled water into the raw materials, and carrying out mixing in a ball mill orstirring mill, so as to obtain boron carbide slurry, wherein boron carbide granules 1# and boron carbide granules 2# in the boron carbide slurry are uniformly distributed and suspended; (3) subjectingthe boron carbide slurry to spraying granulation, and carrying out drying, so as to obtain boron carbide powder with fluidity; (4) molding the boron carbide powder, so as to obtain boron carbide biscuits; and (5) placing the boron carbide biscuits into a vacuum or atmosphere no-pressure sintering furnace. According to the method, the weak points that the quantity of sealed pores is large, a ceramic matrix is complicated in ingredient, the strength is low, and the like can be overcome, and boron carbide can have more extensive application.

The invention provides a fireproof heat-insulating inorganic mineral coating for buildings and a preparation method thereof. The coating is formed by compounding and processing aerogel, hollow microspheres, high-fire-resistance resin, an inorganic cementing material and other auxiliaries. The nano silicon aerogel is the best thermal insulation material at present; the glass hollow micro-beads andthe ceramic vacuum micro-beads also have excellent heat insulation effects, so that by matching the components with aerogel, the thermal insulation performance is improved; meanwhile, the volume weight of the coating is reduced as a filler, the thermal insulation effect is more remarkable, the void ratio of a coating system is guaranteed by blending silica sol and silicone acrylic resin; furthermore, the strength and the fireproof performance of a coating film are also guaranteed. The invention also provides a composite coating using the coating, the thermal insulation putty adopts an inorganic gelling system taking expanded and vitrified micro bubbles as light aggregate, has excellent thermal insulation performance, has superstrong thermal insulation capability, A-grade fireproof capability and high temperature resistance, and well controls the cost.