68results about How to "Guarantee exclusion" patented technology

The invention discloses a servo double-surface heating vacuum packaging machine and belongs to liquid extraction seal secondary forming and packaging equipment of flexible packaged lithium batteries. The servo double-surface heating vacuum packaging machine comprises a double-station turntable feeding device driven by a cam partitioning device, a packaging mechanism with an up-and-down packaging device, and an electric control system, wherein the up-and-down packaging device comprises an upper cavity main body and a lower cavity main body; the opening directions of the upper cavity main body and the lower cavity main body are opposite to each other; the upper cavity main body and the lower cavity main body can clamp the turntable to form a sealed cavity body; a pressing board, an upper sealing head and a bayonet are arranged in the upper cavity main body; a lower sealing head and an aspirating hole are arranged in the lower cavity main body; the aspirating hole is communicated with an external vacuum source; the upper sealing head corresponds to the lower sealing head; and a heating body is arranged inside the servo double-surface heating vacuum packaging machine. The servo double-surface heating vacuum packaging machine has a compact structure and high efficiency; the electric core packaging quality is stable and the cost is low; vacuum liquid extraction can be realized; and pollution of the electrolyte to the equipment can be reduced to minimum.

The invention discloses a method for reinforcing aeolian sandy soil by polypropylene fibers. The method comprises the following steps: selecting materials for preparing fiber aeolian sandy soil, wherein the length of the polypropylene fiber is 18mm, the mix ratio of the fiber is 0.3 percent, and the aeolian sandy soil materials are air-dried aeolian sand or aeolian sandy soil (the moisture content accounts for 11.2wt%); according to the proportioning scheme, closely and completely mixing fine TEXSOL with aeolian sandy soil particles by way of spraying, so that a composite three-dimensional spatial structure is formed by the TEXSOL and the aeolian sandy soil; and carrying out mechanical compaction on the composite fiber aeolian sandy soil subjected to spraying, wherein the compaction method and standard of the composite fiber aeolian sandy soil are same as those of common soil, so that the compaction density of the aeolian sandy soil reaches 100 percent of the standard compaction density, and the fiber aeolian sandy soil is compacted closely. By utilizing the method in earth-filled dams, retaining walls and the drainage works of the earth-filled dams, the water stability of the interior of the soil body can be effectively improved, the shearing strength and tensile strength of the soil body can be obviously improved, and the construction process is simple; and because the fiber content of the fiber aeolian sandy soil is very low, the method has the advantages of cheapness and environmental protection.

The invention discloses a positioning method and a device of a multimode GNSS system, a storage medium and a receiver. The positioning method comprises the following steps: measuring a pseudo-range observation quantity based on the received satellite signal, and calculating a receiver clock difference of each positioning system in the multimode GNSS system; using the receiver clock difference of each positioning system to calculate the inter-system time delay between each positioning system during the measurement when the receiver clock difference of each positioning system is reliable; usingthe inter-system time delay as an observation quantity and combining the pseudo-range observation quantity to detect and exclude the abnormal satellite when the inter-system time delay is stable; andusing the pseudo-range observation quantity of the remaining satellites after excluding the abnormal satellite to obtain the position information of the receiver . According to the positioning methodof the multimode GNSS system, the positioning accuracy of the receiver can be improved in a severe environment.

The invention relates to a crystal growth tank used for freezing and concentration. The crystal growth tank comprises a barrel-shaped crystal tank body and a growth tank body, wherein a feeding hole is formed in the bottom of the crystal tank body; a cold medium water inlet located at the bottom end of the crystal tank body and a cold medium water outlet located at the top end of the crystal tank body are formed in the two symmetrical side edges of the crystal tank body; the crystal tank body is located on the lower side of the growth tank body, and the crystal tank body and the growth tank body are connected to form a communicated whole body, and a rotary shaft penetrates through the centers of the crystal tank body and the growth tank body; and the rotary shaft is rotationally and fixedly sealed between the top of the growth tank body and the bottom of the crystal tank body through sealing bearings at the two ends. A rotary shaft section in a material barrel of the crystal tank body, namely a scraping knife shaft, is movably connected with mutually-staggered scraping knives; a rotary shaft section in the growth tank body, namely a stirring shaft, is fixedly provided with hollow annular stirrers which are uniformly distributed; and the part, which is close to the center of the top, of the growth tank body is further provided with an ice discharging hole in a manner of extending out of the tank. The crystal growth tank is simple in structure, low in energy consumption and stable to operate, and can effectively guarantee the concentration effect.

The application discloses a performance testing method and device. The method comprises the following steps: conducting parameter estimation of statistics of performance testing parameters, and obtaining an estimated value; and determining whether the obtained estimated value accords with a preset condition, and determining whether the next test is conducted on the basis of a determination result, wherein the preset condition is set on the basis of the preset fluctuation range of the performance testing parameters. The testing efficiency is increased.

The invention discloses an automatic metering structure comprising a shell and a rotor; a rotor drum, and a feed opening and a discharge opening communicated with the rotor drum are formed on the shell; the rotor is inserted in the rotor drum, the rotor and the rotor drum are in sealed fit, a metering groove corresponding to the feed opening and the discharge opening is formed on the outer wall of the rotor, and the rotor is connected with a motor and is driven by the motor to rotate in the rotor drum to realize automatic and precise metering. The invention further discloses an automatic feeding device comprising an upper connecting seat, a lower connecting seat and the automatic metering structure; the upper connecting seat is installed above the shell, and a feed opening formed on the upper connecting seat is communicated with the feed opening of the shell; the lower connecting seat is installed between the lower side of the shell and a cabinet, a blanking opening formed on the lower connecting seat is communicated with the discharge opening of the shell and the cabinet, an extract opening further formed on the lower connecting seat is communicated with the cabinet, and a baffle is arranged between the blanking opening and the extract opening to realize automatic feeding, guarantee the blanking speed and improve the quality and the yield of the product.

A horizontal and vertical deformation combined testing method for deep-layer rock bodies or soil bodies is disclosed. The method includes drilling a testing hole, mounting a horizontal and vertical displacement combined testing device for the deep-layer rock bodies or soil bodies, backfilling and protecting the testing hole, and performing measurement with instruments. The combined testing hole is utilized in the method, and therefore half of the testing cost is saved, and a horizontal and vertical three-dimensional deformation at a point of a rock body or a soil body can be obtained. In addition, a novel vertical settlement magnetic ring device and a backfilling method can greatly increase the testing precision. The method can meet safety monitoring projects requiring high precision, such as deformation monitoring of tunnels, high slopes, deep foundation pits and dam bodies.

The invention discloses a vacuum non-stick pot, which comprises a spherical pot liner. The spherical pot liner is divided into a bottom, a body, a neck and a pot edge from bottom to top, and is characterized in that: There is edging, the outside of the neck is provided with an insulating layer, the lower end of the insulating layer is welded to the upper end of the tank body, the upper end of the insulating layer is connected to the edge of the pot through the edging, and the spherical pot is coated with an enamel layer or Teflon layer.

The invention discloses a positioning segmentation method and device for a graphic table. The method comprises the steps of performing binarization processing on the graphic table to obtain a first graph; performing morphological corrosion expansion on the first graph, and determining table composition lines in the first graph to obtain a first table; performing Gaussian blur and binarization processing on the first table to obtain a second graph; and performing morphological corrosion expansion on the second graph, and determining a table composition line segmentation graph table based on thesecond graph. According to the invention, two times of binarization processing and two times of morphological corrosion expansion are adopted, and composition lines of the graphic table are effectively processed; the first binarization is that the picture becomes black and white, a target area and a background area can be separated, interference is reduced, and subsequent processing is facilitated; the second binarization is that a table line can be thickened and dotted lines, fine lines and broken lines can be complemented after the second binarization and expansion; and the table area blockpositioning accuracy is improved.

The invention discloses a preparation method of an EVA elastomer. In a single polymerization kettle, ethylene and vinyl acetate carry out free radical copolymerization in a solvent in the presence of an initiator; the free radical copolymerization comprises a pre-polymerization phase, a chain propagation phase, and a chain termination phase; and the controlled pre-polymerization phase, the chain propagation phase, and the chain termination phase are performed at different temperatures to prepare the EVA elastomer. According to the method, the controlled pre-polymerization phase, the chain propagation phase, and the chain termination phase are performed at different temperatures, thus the chance of implosion is largely reduced; the temperature runaway of polymerization and initiator loss caused by once heating are relieved, the reactions of polymerization monomers carry out completely, higher monomer conversion rate and copolymerization yield can be obtained; the copolymerization speed is guaranteed, at the same time, the solid content of products is increased, and the VAc content of polymerization products is adjusted to produce EVA elastomer products for satisfying different needs.

The invention discloses a method for integrally forming C sandwich panel antenna housing. The method comprises the following steps: (1), preparing prepregs; (2), carrying out die pretreatment; (3), laying and pasting an outer skin; (4), laying and pasting honeycombs and a middle skin; (5), laying and pasting honeycombs and an inner skin; (6), curing; (7), demolding; and (8), machining and formingholes. According to the method for integrally forming the C sandwich panel antenna housing is simple; mixed materials with glass fibers or quartz fibers and epoxy resin or cyanic acid resin or bismaleimide resin are used as prepregs; aramid paper honeycombs and same-system adhesive films are used as main raw materials; a pre-compaction step is added after the skins are laid and pasted; bubbles among the prepregs are completely eliminated; meanwhile, resin fusion is more sufficient; curing is carried out after three layers of skins and two layers of honeycombs are laid and pasted; the thermal expansion coefficients of the prepregs are consistent; the stress in the curing process is small; the planeness of the panel antenna housing can be guaranteed; the method has few operation steps; the usage of autoclaves can be reduced; the energy consumption is reduced; and the production cost is reduced.

The invention provides a device for treating and reusing household sewage and belongs to the field of household environment protection tools. The device comprises a water inlet structure, a box body,a coarse impurity filtering box, graded filtering boxes, a liquid level sensor, a small water pump and graded filtering screens, wherein the water inlet structure is located at the upper side of a coarse impurity filtering box groove of the box body; the coarse impurity filtering box is mounted in the coarse impurity filtering box groove of the box body; the graded filtering boxes are mounted in graded filtering box grooves; graded filtering screens are mounted in graded filtering screen grooves; the liquid level sensor is mounted at the upper middle part of a water storage box of the box body; the small water pump is connected with the bottom of the water storage box at a 3/4 position of the height of water storage volume; the other end of the small water pump is connected with a flush toilet. The device is capable of achieving secondary utilization of the household sewage on the basis that the convenience and the environmental friendliness are ensured.

The invention discloses a method for enhancing shale gas exploitation through a large-temperature-difference freeze-thaw cycle. The method comprises the following steps of firstly, injecting magnetized water into a shale gas exploitation pipe of a shale gas well through pulsation; secondly, driving the magnetized water to move into shale as much as possible through high-pressure nitrogen, and thenconducting liquid-nitrogen freezing and high-temperature nitrogen melting on the magnetized water several times to fully utilize the permeability of the magnetized water, the driving property of thehigh-pressure nitrogen, the expansion force of the frozen magnetized water and an ultra-large-temperature-difference freeze-thaw cycle formed by the liquid nitrogen and the high-temperature nitrogen in order to cause complete cracking of the shale. Moreover, the high-temperature nitrogen can also provide energy for the shale gas to be separated from the shale, correspondingly the cracking effect of the shale can be effectively improved, the crack expansion range of the shale can be effectively expanded, and the shale permeability is increased, so that large-flow, high-concentration and long-time exploitation of the shale gas is improved.

The invention belongs to the technical field of highway bridge deck pavement construction, particularly relates to a bridge deck pavement surface crack control method, and solves problems that bridgeconstruction quality is seriously influenced, construction cost is increased and construction efficiency is reduced due to pavement layer surface cracking caused by defects of a traditional bridge deck pavement construction process. The invention comprises a claim 1 and the like. The method comprises the following steps that S1, bridge deck scum is removed, and residual concrete is chiseled away;S2, a reinforcing mesh protective layer is controlled; S3, concrete pouring control is performed; S4, surface finishing control is performed; S5, concrete covering and curing are performed; S6, linesare carved; and S7, false seam cutting is performed. Cracks generated on the pavement surface are effectively controlled, rework is not needed, the bridge construction quality is improved, the construction cost is greatly reduced, and the construction efficiency is improved; and flatness and overall appearance quality of bridge deck pavement are also ensured.

The invention discloses a vibration type dust removal shoe cabinet which comprises a shoe cabinet body, a vibration device is arranged in the shoe cabinet body, a dust removal bin door is arranged on the shoe cabinet body, the dust removal bin door is arranged at the position, where the vibration device is arranged, in the shoe cabinet body, and the dust removal bin door is connected with the shoe cabinet body in an opening and closing mode. Shoes needing dust removal are placed on the vibration device. The device is simple in structure and has the functions of vibration dust removal, disinfection and dust brushing; dust on the shoe sole is removed in an irregular vibration mode, compared with traditional ultrasonic pen dust removal and brush dust removal, the cost of the vibration dust removal mode is lower than that of ultrasonic dust removal, damage to the shoe body is small, and compared with brush dust removal, secondary mud feeding caused by brush strain is eliminated, so that the shoe sole dust removal efficiency is improved. And coarse dust at the bottom is fully shaken off, and fine dust on the shoe body is loosened, so that a satisfactory dust removal effect is achieved.

The invention discloses a method for rapidly manufacturing high-strength bolt holes. The method comprises the steps that 1, according to the dimensions of a bolt hole set, the length of a diagonal line of a rectangle formed by two rows of bolt hole sets is determined, a thin zinc-plated steel plate is selected, and the rectangle diagonal line is drawn; 2, a standard rectangular line frame is determined; 3, according to the positions of all the bolt holes, mark points are drilled; 4, after center points of the bolt holes are determined, blanking is carried out on the zinc-plated steel plate according to the dimension in a bolt hole template legend, one steel plate with the equal size and the thickness delta being 12-20 mm is taken and completely covered with a zinc-plated template, small holes are led out, then the bolt holes are drilled, and a bolt hole template is manufactured; and 5, auxiliary bolt hole machining is carried out through the bolt hole template manufactured in the step 4. Bolt hole distance control precision is high, the repeated service life is prolonged, it is ensured that machining scrap iron is effectively removed, and fixing is convenient.

The invention discloses a secondary fine grinding process for processing of sweet dumpling powder in the field of sweet dumpling powder processing, wherein the secondary fine grinding process comprises the steps of screening, cleaning, demildewing, soaking, pulp grinding, homogenizing, press filtration, crushing and drying. The pulp grinding includes primary pulp grinding and secondary pulp grinding, and glutinous rice pulp obtained from primary pulp grinding directly flows into a secondary pulp grinding machine by a stainless steel guide groove and is subjected to secondary pulp grinding; thesweet dumpling powder produced by the process is boiled into sweet dumpling with no turbidity of soup, no sticking to a basin, no sticking of teeth, good swelling, fineness, smoothness, softness, opalescent and bright color, obvious glutinous rice clear and fragrant taste, comfortable taste, high gelatinization degree, and good rehydration, and effectively solves the problems that the granularityof sweet dumpling powder is not fine enough and not conducive to eating.

The invention discloses a large-temperature-difference freeze-thaw cycle method for production increase of a surface borehole. Firstly, magnetized water is injected into a gas extraction pipe of the surface borehole in a pulsating manner; high-pressure nitrogen drives the magnetized water to enter the coal body; liquid nitrogen freezing is carried out on the magnetized water for many times and themagnetized water and high-temperature nitrogen are melted; the freezing expansion force of the magnetized water and the direct large-temperature-difference effect of the liquid nitrogen and the high-temperature nitrogen are utilized to jointly crack the coal body; by means of interaction of high-temperature and high-pressure nitrogen, liquid nitrogen and magnetized water, an ultra-large temperature difference effect is formed, the coal cracking effect is achieved, finally, the coal cracking effect and the crack expansion range can be effectively improved, the coal permeability is increased, and therefore large-flow, high-concentration and long-time gas extraction through ground drilling is achieved.

The invention discloses a pressing block trigger device and an epoxy resin vacuum low pressure packaging process method. The device comprises a pressing block, a movable pin and a cylinder. The upperpart of the pressing block has a slide rod, and a front end of the movable pin can be embedded into a dovetail groove in a side of the slide rod. An end of the movable pin is connected to a piston inthe cylinder through a connecting rod, and the moving pin is driven by the movement of the piston to be embedded into the slide rod or withdrawn from the sliding rod. A pre-cured epoxy resin is used as a bonding material, the operation is more convenient than that of a traditional epoxy resin, the cost is lower than that of a soldering mode, and the operating temperature is low and has small damage to the device. A vacuum oven is used to cure epoxy resin, a vacuum/low pressure state in a sealed cavity is ensured, and the formation of sealed interface pores due to internal expansion during curing is avoided. An epoxy resin curing process is designed, vacuumizing is carried out in a preheating stage, the pressing block trigger device is used to control the pressing block to press a cover plate in falling, the discharge of gas inside the cavity is ensured, and the pre-cured epoxy resin can effectively bond.