93results about How to "Angular" patented technology

The invention provides a preparation method of a titanium alloy surface sol-gel conversion film layer. In the sol-gel preparation method, the mixture of lower alcohol and water is taken as a solvent, organic siloxane and organic metal alkoxide which comprise organic functional groups are taken as precursors, organic acid is taken as a catalyst, dip coating is taken as a coating mode, and a prepared film layer can enhance the bonding force between a titanium alloy and an organic primer or a bonding agent. The mixture of the lower alcohol and water is taken as the solvent, so that problems of inflammability, safety, volatility and the like of a pure alcohol solvent and problems such as poor sol stability and short working life of a pure water solvent are solved. In the method, the mixture of the lower alcohol and water is taken as the solvent, so that the prepared sol can be kept clarified and transparent for a long time, and the film layer which is obtained by coating within at least one month is uniform and flat and has high bonding force.

The invention relates to a punch forming device of a square paper box component. The punch forming device comprises an outer mold and an inner mold. The inner mold and the outer mold can relatively and vertically move, the inner mold is in a cuboid shape, and a cavity where the inner mold is downwards embedded is formed in the outer mold. The inner mold and the outer mold are both made of metal. The punch forming device is characterized in that the bottom of the cavity of the outer mold is hollowed; the cavity of the outer mold is divided into an upper section and a lower section; the portion, corresponding to the periphery of the upper section of the cavity of the outer mold, on a mold body is an upper section of the mold body of the outer mold, and the portion, corresponding to the periphery of the lower section of the cavity of the outer mold, on the mold body is a lower section of the mold body of the outer mold; the upper section of the mold body of the outer mold is provided with a heating component, and the lower section of the mold body of the outer mold is provided with a cooling flowing way; the depth of the upper section of the cavity of the outer mold is more than two times larger than the maximum embedding depth of the inner mold; the depth of the lower section of the cavity of the outer mold is also more than two times larger than the maximum embedding depth of the inner mold. The square paper box component manufactured by the punch forming device is square, clear and sharp in parison corner angle, each paper board top is smooth, upright and straight, and the production speed is high. The invention further provides a punch forming process of the square paper box component.

The invention relates to a cabinet body of a high-voltage switch cabinet, which is characterized in comprising a sectional material framework, a cabinet body top plate, a busbar chamber side plate, a cable chamber side plate, an instrument box side plate, an instrument box relay board, a breaker side plate, a cabinet body base plate, a left framework, a beam and a right framework. The cabinet body provided by the invention has the advantages that a sectional material is adopted as the framework of the cabinet body, and the cross section of the sectional material is in a thin-wall shape as a whole, so that the material waste cause by that a circular or rectangular cavity of the existing sectional material adopts a same all thickness is avoided; the design of a T-shaped groove is convenient for realizing convenient and fast assembly, and the T-shaped groove has the characteristics of clear edges, smooth lines and the like; the sectional material with specially-designed cross section has the characteristics of saving raw materials and having high bending strength; lap joint between the sectional materials and between the sectional material and other parts is simple, so that the productive efficiency is improved and the productive period is reduced; and other metal plate parts play the role of partition, have low requirements in strength and are only required to be bent simply, so that the manufacturing cost is reduced.

The invention discloses a high-precision real estate measurement method based on a multi-rotor unmanned aerial vehicle. The method comprises the following steps: 1, a multi-rotor unmanned aerial vehicle high-precision real estate measurement device is constructed; 2, photo control points are arranged and the geographic coordinates of the photo control points are obtained; 3, route planning is carried out; 4, data acquisition is carried out; 5, data processing is carried out; 6, a live three-dimensional model for a to-be-measured real estate measurement area is established; 7, mapping is carried out; and 8, precision check is carried out. The multi-rotor unmanned aerial vehicle is used to carry an oblique camera and a vertical camera to acquire high-definition three-dimensional image data,the live three-dimensional model is generated, naked-eye three-dimensional mapping is carried out in the live three-dimensional model, the real estate geographic information is rapidly obtained, the labor intensity and the workload of operators are greatly reduced, and the efficiency is high.

The invention discloses a hand-push type hedge shearing machine which comprises a cart, a liftable bearing frame, a gasoline engine, a reduction gearbox and fixed bearing frames. The liftable bearing frame comprises two vertical steel pipes and a cross beam connected to the tops of the vertical steel pipes, the vertical steel pipes are respectively inserted in two steel pipes of the fixed bearing frames, one end of the cross beam is connected with an angle adjusting device through an overhanging beam and connected with a power switching box through the angle adjusting device, a hedge cutter is assembled on one side of the power switching box, the other side of the power switching box is communicated with the reduction gearbox through a flexible wire shaft, and the reduction gearbox is connected to a gasoline engine; in addition, a height adjusting mechanism is mounted on one fixed bearing frame spaced away from the overhanging beam. The hand-push type hedge shearing machine is simple and compact in structure, flexible and convenient to adjust and labor saving and quick in operation; hedges are good in smoothness after shearing and clearly contoured.

The invention applies to the field of bridge construction, and provides a method for constructing camber-type concrete arch ribs, as well as a hydraulic self-ascending mold device. The method is to utilize the hydraulic self-ascending mold device for construction by adopting a self-ascending mold segmented cantilever casting mode. A rail and a template of the self-ascending mold device are both in the shape of a straight line or straight surface, or are both in the shape of a curve or a curved surface. The method constructs the camber-type concrete arch ribs by adopting the self-ascending mold segmented cantilever casting mode, wherein the guide rail and the template of the self-ascending mold device can be in the shape of a curve or a curved surface; as the template and a bracket of the device can be repeatedly used during the construction of the arch ribs, steel used for the template and the bracket can not be wasted; in addition, the method can greatly improve construction efficiency, shortens construction period, and realizes that a cast concrete arch rib is small in the deviation value of structural three-dimensional coordinate, accurate in structure size, smooth in line shape and clear in edge angle, and achieves the high-precision requirements on line shape deviation.

The invention discloses a bee pollen granular preparation capable of direct compression and a preparation method of the bee pollen granular preparation. The bee pollen granular preparation comprises the following main ingredients: bee pollen, magnesium stearate, vitamin B2, butter essence, and silicon dioxide or a non-viscous other material. The bee pollen granular preparation which can be directly compression-molded, is good in quality and less than 97% in bee pollen content, can be simply and conveniently produced by the method disclosed by the invention, a compressed tablet is complete, smooth and clean in appearance, angular, high in hardness, and low in friability, wherein the quality of the compressed tablet is superior to that of a bee pollen compressed tablet commonly seen in the market, especially, the hardness of the tablet is more than 3 times that of the common tablet, and the industrialized mass production of the bee pollen tablet can be well achieved.

Provided is a method for culturing dendrobium officinale. A shading greenhouse is adopted, and a culture matrix is prepared through the raw materials, by weight, 3-5 parts of fragmentary bark, 3-5 parts of fragmentary red bricks, and 1-3 parts of fragmentary tree leaves. When the culture matrix is used, the raw materials are evenly mixed, and 1000-times potassium permanganate solutions or 1000-times thiophanate methyl solutions are used for even spraying sanitization. The water retention rate and the drought resisting rate of the culture matrix are high, the fertilizer efficiency is mild and lasting, the fragmentary red bricks have strong hardening resisting performance, growth of the root system of dendrobium officinale is facilitated, the unexpected technical effect is achieved, and culturing quality of dendrobium officinale is greatly improved.

The invention discloses a manufacturing method of a biological soil fixation test beam used for constructional engineering.The manufacturing method includes the following steps that materials are prepared, wherein the materials comprise longitudinal side plates, a bottom plate and end plates; 2, the longitudinal side plates, the bottom plate and the end plates are assembled; 3, a lightweight mold needed for cutting of geotechnical cloth is manufactured, and the geotechnical cloth is cut according to the size; 4, two transverse screws are detached; 5, the cut geotechnical cloth is placed in a rectangular model cavity, and sandy soil is added to a cavity defined by the geotechnical cloth; 6, the distance between the two longitudinal side plates is fixed through the two transverse screws; 7, bacteria are poured into a test piece, and the whole mold is placed in a chemical solution; 8, the rectangular biological soil fixation beam is formed after the reaction is completed.A large number of mechanical performance tests such as the anti-bending performance test need to be conducted on the beam which is produced through the method and needed for building a house before practical engineering application, basic data and scientific reference are provided for practical application of the technology, and safety and reliability of an infrastructure and the house are guaranteed.

The invention belongs to the field of wall material production, and particularly relates to a coal slime tailings, a sintered brick prepared from coal slime tailings and a preparation method thereof.The raw material of the sintered brick is the tailings separated by a separation column; the tailings comprises the following, by mass 40%-55% of SiO2, 16%-30% of Al2O3, 1%-5% of Fe2O3, 1%-5% of CaO,and the balance other elements; and the calorific value of the coal slime tailings is less than or equal to 2.5 MJ / kg. The sintered brick has high compressive strength and light weight, and has the characteristics of frost resistance, sound absorption, corrosion resistance, water permeability and air permeability; the brick has uniform size and no deviation; the brick surface is clean and smooth,and edges and corners are distinct; the color is uniform; and the preparation method has simple process, so that the energy waste is reduced.

The invention provides a double-layer coupling beam hole opening formwork system and a construction method of the double-layer coupling beam hole opening formwork system applied to a double-layer coupling beam. The double-layer coupling beam hole opening formwork system comprises a hole opening formwork and a formwork support; the hole opening formwork comprises a frame body and a frame body back edge; the frame body is arranged in a double-layer coupling beam hole opening and is matched with the double-layer coupling beam hole opening in size; the frame body at least comprises an upper side plate, a lower side plate, a left side plate and a right side plate; and the hole opening formwork further comprises at least one lower ash vibrating drum which connects the upper side plate with the lower side plate in a vertical through mode and is arranged in the frame body. The construction method comprises the steps of reinforcing steel bar bundling, hole opening formwork mounting, concrete pouring, drum column removing, curing and the like. The double-layer coupling beam hole opening formwork system and the construction method of the double-layer coupling beam hole opening formwork system applied to the double-layer coupling beam greatly reduce the quality defects of concrete, avoid forming of air holes in beam side forms, reduce construction procedures of hole forming and plugging, and shorten construction periods; and meanwhile according to the construction method, the flatness of the reinforcing steel bar protective layer of a concrete component around the hole opening and the flatness of a structure concrete face are controlled, and the poured concrete is good in appearance and quality.

The invention discloses a three-dimensional non-woven fabric bag stamping and welding machine which comprises a worktable and a stamping and welding workgroup, wherein the stamping and welding workgroup comprises a bag supporting mechanism, a sliding table and a stamping and welding mould, a left supporting arm and a right supporting arm of the bag supporting mechanism are arranged in the transverse direction of the worktable in a relatively sliding manner and are pushed by a transverse air cylinder, two pairs of bottom dies of the stamping and welding mould are respectively arranged at the tops of the left supporting arm and the right supporting arm, the left supporting arm and the right supporting arm are arranged on the sliding table, the sliding table is arranged in the longitudinal direction of the worktable in a sliding manner and is pushed by a longitudinal air cylinder, two pairs of stamping heads and the two pairs of bottom dies of the stamping and welding mould are opposite to each other at a terminal bag conveying position of the sliding table, and the stamping heads and the bottom dies are pressed by each other when being pushed by a left stamping and welding air cylinder and a right stamping and welding air cylinder. When the three-dimensional non-woven fabric bag stamping and welding machine is adopted, the three-dimensional molding of non-woven fabric bags provided with M-shaped inserting edges can be completed, and the three-dimensional non-woven fabric bag stamping and welding machine has high production efficiency; produced three-dimensional non-woven fabric bags have the advantages of clear edges and corners, strong stereoscopic impression and attractive appearances; and bag bottoms of the non-woven fabric bags have high strength and can be placed stably and vertically; and the traditional three-dimensional non-woven fabric bags are incomparable with three-dimensional non-woven fabric bags.

The invention discloses a method for batched formation of square beams for biological soil reinforcement. The method for batched formation of the square beams for biological soil reinforcement comprises the following steps that (1) materials required by a mold are prepared; (2) cut organic glass plates provided with holes are assembled; (3) a light mold required for tailoring of geotechnical cloth is manufactured, and the geotechnical cloth is tailored according to the sizes of light materials; (4) the geotechnical cloth is placed in square beam mold cavity units, and sandy soil is added into cavities defined by the geotechnical cloth; (5) prepared bacteria are poured into test piece molds; (6) the two or four wetted test piece molds are placed in a container side by side, and a plurality of layers of mold sets are arranged according to the actual condition; (7) the multiple layers of mold sets are soaked in a chemical solution; and (8) the square beams for biological soil reinforcement are formed after a reaction. According to the method for batched formation of the square beams for biological soil reinforcement, by means of the flatness of the surface of organic glass and the good water permeability of the holes, cuboid test pieces formed after the chemical reaction are angular, high in surface flatness, uniform in texture and stable in mechanical property, and a scientific research test for testing the bending performance can be conducted in the later stage conveniently.

The invention relates to a solid waste asphalt mixture for a concrete pavement and a preparation method of the solid waste asphalt mixture. The solid waste asphalt mixture comprises the following rawmaterials in parts by weight: 4-9 parts of natural sand, 4-9 parts of machine-made sand, 12-27 parts of iron tailings, 38.5-52.5 parts of asbestos tailings, 16.5-22.5 parts of basalt aggregate, 4-6 parts of asphalt, 0.2-0.4 part of asphalt modifier, 3-5 parts of modified desulfurized ash and 2-3 parts of iron tailing sand. According to the invention, the industrial solid waste iron tailings, asbestos tailings and steel slag are used as raw materials, the prepared asphalt mixture has good rut deformation resistance and good temperature stability, and the addition of the modified desulfurized fly ash can improve the adhesion between the asphalt and the aggregate, so the asphalt mixture has good enterprise benefits. Not only is the pavement performance of the asphalt mixture ensured to meet various index requirements, but also the solid waste is fully utilized, and the influence of tailing stacking on the environment is reduced.

The invention provides a preparation method of scandium nitride cubic crystals, belonging to the technical field of preparation of a rare earth nitride nanometer material. The prepared scandium nitride cubic crystal comprises a regular cube or cuboid which has a flat and smooth surface and is uniform in appearance and dimension. With the adoption of the preparation method, the high-purity rare earth metal is directly reacted with nitrogen through a direct current arc plasma discharging device under the assistance of a high-temperature low-air pressure system condition and plasma, so as to prepare into powder with metallic luster and showing bluish green. According to the preparation method provided by the invention, the direct current arc plasma discharging device is utilized at the first time to synthesize scandium nitride cubic crystal which has high impurity and is uniform in appearance and dimension; the preparation method is simple, reliable, high in repeatability, short in reaction time, low in energy consumption, needs no the harsh vacuum condition, is environment-friendly, and has high output of products; and the scandium nitride cubic crystal has outstanding physical properties such as electricity, mechanics and the like, thus the scandium nitride cubic crystal can be widely applied in the fields of semiconductor devices and durable protecting coating and the like.

The invention relates to a mirror polishing method of a mobile phone USB slot panel and a mobile phone USB slot component. The polishing method comprises the following steps: (1), punching to form the mobile phone USB slot component, (2), grinding the mobile phone USB slot panel to form a surface with mirror effect, (2.1), laying the ground mobile phone USB slot panel on a smooth grinding disc or a jig, ensuring that the grinding disc rotates anticlockwise and the jig drives a grinding work piece to rotate clockwise, adding rough grinding composition during rotation, performing relative operation friction through the rough grinding composition permeating the part between the grinding work piece and the grinding disc, and cutting the surface of the mobile phone USB slot panel through sand grains of the rough grinding composition, and (2.2), adding finish grinding composition, and repairing the surface of the mobile phone USB slot panel through sand grains of the finish grinding composition. The mobile phone USB slot component comprises the closed and annular slot panel matched with the shape of a USB plug, a slot wall vertically extending along the inner side of the slot panel, and a plurality of arm braces respectively, symmetrically and convexly arranged on the edge of the slot wall.

An ocean reef automatic mine laying launching vehicle special for a teenager defense-related science and technology study comprises a base, an atoll circular rail, rail wheel systems, a communication system, a hydraulic transmission system, a driving cab, an artillery automatic ammunition filling device, a radar driving system, an accumulator set, a power transmission device, a machine gun, an artillery, a projection-type underwater sonar detecting device, a fire-control radar, a command room, a mine launching distance controller, a mine laying system launching unit, a mine storage device, an electric generator, a tail cover protective plate and an artillery launching controlling system. The ocean reef automatic mine laying launching vehicle serves as a new-type mine laying means for arranging a mine obstacle in a modern war, blockade mine laying can be conducted on the periphery of an important military target of a troop stationed on reefs, the mine laying speed is high and mine laying is uniform. In addition, as a model special for the teenager defense-related science and technology study, the ocean reef automatic mine laying launching vehicle has realistic and profound strategic significance for improving defense-related accomplishment knowledge of teenagers and guiding the teenagers to bravely take part in the defense-related science and technology study career in China.

The invention relates to a fair-faced concrete formwork construction technology. The structure surface of fair-faced concrete is not decorated. In the construction process, split bolt holes are handled, panel joints are handled, and finally visible joints are handled. The fair-faced concrete produced with the fair-faced concrete formwork construction technology can be formed at a time and is not decorated externally at all, the natural color of concrete is directly adopted as the decorating color, and it is required that beam columns and plates are flat and smooth in surface, regular and clear in line and consistent in appearance and color, the shape and the size in the axial direction are accurate, cross sections are large, variable-cross-section structures are adopted, lines are regular, corners and edges are clear, beam column joints are smooth, obvious connection marks do not exist, the concrete is solid inside and smooth outside, voids, pits and bubbles are eliminated, embedded parts and embedded bolt sleeves are smooth in surface and accurate in size, split bolts are arranged in order in position, formwork edge joints are regular, and the surface of the concrete should not be damaged or polluted.

The invention discloses a manufacturing process of a terrazzo-imitating porcelain plate and a product obtained by applying the process, and relates to the field of building ceramic tiles. According tothe scheme, a plurality of sets of ceramic powder pressed sheet particle modules are designed to be combined with a front discharging hopper and a bearing belt to form an integrated distribution system for installation and use, and a method that a predetermined mesh-shaped plane slide carriage is creatively adopted to replace a conventional column cage-shaped filter sieve or a plane screen to filter screen residues is adopted, so that the problem that sheet particles with clear edges and corners cannot be manufactured is solved, and sheet particle elements which are in the same shape, are orderly in density and are clear in edges and corners and are formed like natural growth are formed in a blank body of the manufactured product; and compared with a conventional terrazzo, the effect is the same natural, but the physical and chemical properties are more excellent, batch standardized production can be achieved, and materials required by wider design creativity are provided for designers.

The invention discloses a carbazole 1, 3-site Friedel-Crafts ring-closing cyclic compound and a preparation method thereof. The compound is a chirality-free I-type di-tert-alcohol synthon composed offluorenyl and phenyl or derivatives of fluorenyl and phenyl, a closed lattice structure which is clear and lasting in shape is formed by connecting the ninth position of fluorenyl with the first siteand the third site of carbazole, the compound has clear side length and vertex on the nanoscale, and due to the obvious length, width and height attributes, the molecular rigidity is higher. The general molecular formula is as shown in the specification. The reaction breaks through the 3, 6-site ring-closing mode of carbazole in the previous Friedel-Crafts reaction, realizes a new method for 1, 3-site ring-closing of carbazole by a simple method, has a deep research value, and has the advantages of no metal catalysis, greenness, environmental protection and atom economy. Meanwhile, the molecule has the advantages of regular structure, adjustable cavity size and easiness in expansion, so that the molecule is worthy of deep research in the fields of organic molecular materials and photoelectric high and new technologies.

The invention discloses a method for efficiently forming hollow bricks through high-pressure microorganism solid soil. The method comprises the following steps that 1, a material needed by a die is prepared; 2, organic glass plate with holes is assembled; 3, a light die is manufactured, and geotechnical cloth is tailored according to the size; 4, two transverse screw rods are disassembled; 5, a PVC pipeline is installed in a rectangular die cavity; 6, sandy soil is added to a cavity defined by the geotechnical cloth, and a geotechnical cloth top cover is sewn; 7, by means of the two transversescrew rods, the distance between two longitudinal side plates is fixed; 8, prepared bacteria are poured into a test piece, and then the whole die is placed in a chemical solution, and located under the pressure of two standard atmospheric pressures; and 9, after reacting is carried out for 3 days, biology solid soil hollow bricks are formed. Compared with traditional hollow bricks, the hollow bricks formed efficiently through the high-pressure microorganism solid soil does not need to be inserted and formed at a high temperature, air pollution is reduced, the environment is protected, and themethod is an ecological environment-friendly method.

The invention discloses a lifting device of a bubble brick cutting machine. The lifting device comprises an outer frame and an inner frame. A motor and a worm gear screw rod lifter are arranged on the outer frame. The motor is connected with the worm gear screw rod lifter through a belt wheel and a belt. A guide rod is arranged on the outer frame. The edge of the inner frame is connected to the guide rod. A flange head is connected to the bottom end of a screw rod of the worm gear screw rod lifter and is connected with the inner frame. According to the lifting device of the bubble brick cutting machine, the structure that the worm gear screw rod lifter is driven by the motor to drive the inner frame to lift upward and downward is adopted, and a cutting mode from top to bottom can not cause notches on surfaces of bricks, so that the surfaces of cut bricks are neat and clear in corner angle. Compared with cutting through lifting a die, the lifting device greatly reduces influence of uncontrollable factors in the cutting process, and effectively ensures the appearance and the quality of bricks.

The invention relates to a method for industrially producing traditional sugar cake. The traditional sugar cake with traditional flavor is obtained according to the steps of selection of raw materials, low-speed mixing, steaming in a wooden steamer, cooling, cutting, vacuum packaging and temperature-controlled sterilizing. The method has the beneficial effects of reducing air bubbles in the traditional sugar cake through low-speed mixing during production so as to guarantee uniform quality and smooth taste of the sugar cake, keeping the flavor of the traditional sugar cake by virtue of steaming with the wooden steamer, prolonging the shelf life of the traditional sugar cake and achieving a ripening effect to shorten the steaming time of the traditional sugar cake by virtue of the temperature-controlled sterilizing, thereby implementing the industrial production of the traditional sugar cake, and guaranteeing stable quality of the produced sugar cake and special flavor of the traditional sugar cake. The production efficiency of the method is improved by more than ten times compared with that of traditional production methods, the shelf life of the traditional sugar cake produced by the method reaches more than ten months and the method has a good application effect and is easy to popularize.

The invention provides an integrated hat and a knitting technology thereof. The technology comprises the steps of 1 preparing for knitting, wherein one weft knitting computerized flat knitting machineis prepared; 2, knitting an outer layer hat top part, wherein the set-up knitting width is N, and a tandem-needle bed is adopted for alternate knitting; 3, knitting an outer layer hat flap part, wherein the set-up knitting width of the outer layer hat flap is N3, and the inverted trapezoidal structure external expansion needle mode is adopted for knitting; 4, knitting a hat brim part, wherein thetandem-needle bed is adopted for simultaneous knitting; 5, knitting an inner layer hat body part, wherein the inner layer hat body (S5) is integrated with the hat brim parts S2 and S4, and the tandem-needle bed is still adopted for alternate knitting; 6, knitting an inner layer hat top part, the step-up knitting width is N', and the inverted trapezoidal structure external expansion needle mode isadopted for knitting; 7, after knitting is performed in S6, a tubular fore shaft method special for the computerized flat knitting machine is adopted, the N1' part is locked, and complete hat knitting is completed.

The invention discloses a dual-purpose stacked folding box based on the combination of detachable put-down stand columns and a hinge. The dual-purpose stacked folding box comprises a base plate and four doors vertically connected to four sides of the base plate respectively, wherein the front door and the rear door are detachably and foldably embedded into fixing grooves formed in four corners ofthe base plate through the stand columns and embedding bodies; the left door and the right door are connected to the left side and the right side of the base plate through the hinge; a stacking positioning block is further fixed to the position, below each fixing groove, of the base plate; a first stacking groove is formed in the top of each stand column, a second stacking groove is formed in thebottom surface of each stacking positioning block, and a stacking protruding block is arranged in each second stacking groove; and the top of each fixing groove is further provided with a fixing groove stacking protrusion aligned with the corresponding second stacking groove in the vertical direction. The dual-purpose stacked folding box is convenient to fold, the logistics box can be tightly stacked up and down no matter in an upright state or a folded state, and the dual-purpose stacked folding box is fitter and stabler compared with the prior art.

The invention belongs to the field of wall material production, and particularly relates to a sintered brick and a preparation method thereof, wherein the sintered brick raw material is composed of tailings and a preset substance, the preset substance is any one selected from clay, shale powder and fly ash, the mass percent of the tailings is 70-90%, the mass percent of the preset substance is 10-30%, the tailings are directly obtained after coal slime is sorted again through sorting equipment, and the tailings comprise, by mass, 45-65% of SiO2, 18-25% of Al2O3, 3-5% of Fe2O3, 3-5% of CaO, 1-3% of MgO and the balance of other elements, and have the plasticity index of 11-15 and the calorific value of 1.8-2.5 MJ / kg. According to the total internal heat sintered standard brick, energy is saved, the performance of the total internal heat sintered standard brick meets or even exceeds the national standard, and reutilization of coal slime tailings and shale is achieved. The preparation method of the sintered brick is simple in process, and the time cost is greatly saved.

The invention discloses a low-cost and high-definition human body three-dimensional scanning imaging system based on feature point supplementation. The system comprises a frame assembly including cameras, the frame assembly comprises a shell in a sphere structure, the inner surface of the shell is provided with the cameras, the shell is also provided with an LED light-supplementing lamp and feature point supplementing lamps, each feature point supplementing lamp comprises a high-light LED lamp, an optical lens and an imaging lens, the imaging lens is provided with a random two-dimensional barcode, the projection lamp projects a pattern corresponding to the random two-dimensional barcode, the random two-dimensional barcode is formed by square spots with a certain density, the random two-dimensional barcodes projected by all the feature point supplementing lamps cover a target human body located in the shell, a union of the shooting ranges of all the cameras covers the whole target human body, the random two-dimensional barcode projected by the same feature point supplementing lamp is completely shot by at least two cameras, the shooting angles of all the cameras can be adjusted, and the project directions of the feature point supplementing lamps can be adjusted.

The invention relates to a terracotta brick and a preparation method thereof. The terracotta brick is composed of 70 to 90 wt.% of tailing and 10 to 30 wt.% of clay. The tailing is directly obtained by resorting coal slurry by a sorting facility. The tailing comprises following components in percentage by weight: 62 to 76% of SiO2, 15 to 17% of Al2O3, 2 to 5% of Fe2O3, 0.5 to 2% of CaO, 0.5 to 2%of MgO, and the balance being other elements; the plasticity index of tailing is 12 to 18; the calorific value is 1.8 to 2.5 MJ / kg, and the loss on ignition is 3 to 10%. The provided terracotta brickmeets or even exceeds the national standards. The coal slurry tailing is reutilized, and the clay resource is saved. The preparation method is simple and the time is greatly saved.

The invention discloses a feature point supplementing and extracting method used for object scanning. High-quality object three-dimensional data and object color data can be obtained from scanning and reduction of a scanning system formed by low-pixel cameras. The method comprises the following steps that (1) feature point supplementing scanning units are assembled; and one feature point supplementing lamp and at least two cameras form one feature point supplementing scanning unit; (2) a feature point supplementing scanning system is assembled; (3) all the feature point supplementing lamps are turned on to project patterns to an object to be scanned; (3) all the cameras are turned on to photograph the object to be scanned so that image information used for synthesis of the three-dimensional data and the color data of the object to be scanned is acquired; (5) the image information acquired in the step (4) is preprocessed by a data processing unit integrated on a camera control circuit board; and (6) the preprocessed image information in the step (5) is transmitted to a computer to perform reduction of the image information of the object to be scanned.