43results about How to "Promote technological progress in the industry" patented technology

The invention relates to a system of digital copyright control applied to multi-media file transmission. The system comprises a content management module, an audio/video transcoding and watermark adding module and a content searching module, wherein the content management module is used for obtaining uploaded multi-media files and carrying out automatic classification and storage according to formats of the multi-media files; the audio/video transcoding and watermark adding module is used for processing the stored multi-media files in a unified format and adding or extracting watermarks in video type files; the content searching module is used for searching content information of related multi-media files in a database according to inquire information of a user. The invention further relates to a method of digital copyright control applied to multi-media file transmission. According to the system and method of digital copyright control applied to multi-media file transmission, automatic classification and storage of the multi-media files can be achieved, and efficient and practical management is carried out; audio/video transcoding and watermark adding are achieved, transmission file formats are unified, digital copyright control is effectively achieved, and the system and method have a wider application range.

The invention provides a wear-resisting anti-flaming poplar solid flooring which is mainly composed of a modified solid flooring billet layer, and a preparation method of the wear-resisting anti-flaming poplar solid flooring; the wear-resisting anti-flaming poplar solid flooring sequentially comprises a balance moisture-proof layer, the modified solid flooring billet layer, a color blending layer, an ultrathin natural veneer decoration layer and a wear-resisting layer from bottom to top. The method comprises the steps of preparing a composite modified impregnation liquid and performing technologies of vacuum pressurization dipping treatment, drying, assembling and pressing and the like on woods. A composite modification processing technique of the invention enables the strength of poplar to be increased, the stability of the poplar to be enhanced, and enables the poplar to have properties of wear resistance, flame retardant, mildew prevention and anticorrosion and the like, so that the utilization value of artificial poplar is improved greatly. The method is simple and easy; and the wear-resisting anti-flaming poplar solid flooring processed by the method has the advantages of scratch resistance, wear resistance, flame retardant, mildew prevention, anticorrosion, easiness in maintenance, natural textures, comfort, environmental protection and high cost performance.

The invention discloses a ball-grinding-mill particle track analysis and energy consumption modeling method based on a DEM. The two technical schemes of theoretical modeling and DEM simulation are combined, on the basis of adopting some existing technical schemes, influences of changes in multiple factors such as the ball-grinding-mill rotating speed, the particle size, the ball-grinding-mill inner diameter and the particle filling rate on the energy consumption of a ball grinding mill are compared and analyzed, the technical results of the ball grinding mill for the potential influence factors are finally obtained, and the specific degrees of the influences of the potential energy consumption influence factors on the energy consumption of the ball grinding machine are given; on the basis, the technical scheme for optimizing the energy efficiency of the ball grinding mill is provided. By means of the ball-grinding-mill particle track analysis and energy consumption modeling method, the factors influencing the energy consumption of the ball grinding mill in the machining process of the ball grinding mill and the degrees of the influences of the factors on the energy consumption of the ball grinding mill can be effectively analyzed and obtained, and the ball-grinding-mill particle track analysis and energy consumption modeling method is of remarkable significance in solving the industrial problems and promoting the industrial technical advancing.

The invention provides an efficient beneficiation method of pyrite in lead-zinc flotation tailings which can significantly reduce the amount of separating pyrite agents and improve the main grade of sulfur concentrate and the operation recovery rate of sulfur. The efficient beneficiation method is that the zinc tailings with the concentration of 20-25% and pH>=12 which is through the process of dressing lead and zinc floatation successively is dehydrated and concentrated to concentrated underflow with the concentration of 50-52%, and the pH of the concentrated underflow is adjusted to 6-7 by the addition of sulfuric acid, then the separating pyrite collecting agent is added, the majority of sulfur is selected into sulfur concentrate with sulfur main grade greater than 49% which directly gets into the product with a flotation column by a quick election, and the remaining sulfur is selected into sulfur concentrate with the sulfur main grade greater than 43% with a flotation machine by a roughwrought and a concentrated scavenging, the total operation recovery rate of the sulfur is above 96%, the main grade of sulfur concentrate reaches 47%.

The invention relates to a straight teeth billet feeding mechanism of a square billet turn over cooling bed, pertaining to the technical field of machine. Eccentric drive and straight teeth are the keys of the technology; A V teeth and a straight teeth A are integrated as a whole; the lower end face of the V teeth and the upper end of the a V teeth beam are tightly fastened; A U teeth and a straight teeth B are integrated as a whole and the U teeth and a U teeth beam are tightly fastened; the V teeth beam and the U teeth beam are adjustably connected with two rolling wheels which are adjustably connected with two upper angles of a cradle; a cradle base angle and a cradle pull rod, the cradle pull rod and a cradle eccentric bushing, the lower end of the V teeth beam and a V teeth pull rod, the V teeth pull rod and a V teeth eccentric bushing, the lower end of the U teeth beam and a U teeth pull rod and the U teeth pull rod and a U teeth eccentric bushing are all adjustably connected respectively. The cradle eccentric bushing, the V teeth eccentric bushing and the U teeth eccentric bushing are all connected with a driving shaft by a key and the driving shaft is tightly fastened with an axle of a driving device. The straight teeth billet feeding mechanism has more than two sets and the eccentric phase difference of the V teeth eccentric bushing and the U teeth eccentric bushing is 180 degrees while the eccentric phase difference of V/U teeth eccentric bushing and the cradle eccentric bushing is 90 degrees. The straight teeth billet feeding mechanism of the invention is used for billet supplying of the turn over cooling bed and has the advantages of simple structure, energy saving, manpower saving and good effect.

The invention relates to a method for preparing a preserved beancurd product, which belongs to the production field of the preserved beancurds. Primary fermentation and after fermentation are the key steps. The production process of the preserved beancurd comprises the following steps: soybean soaking, jordaning, filtering, warming, refiltration, defoaming, adding coagulant and blank forming, dicing, inoculating, primary fermentation, pickling, bottling, adding soup, covering and after fermentation. The raw materials of GMO free and green food are that protein contained in the soy bean is more than or equal to 38%, slag contained in the soy milk is less than or equal to 15%, crude protein contained in the bean dregs is less than or equal to 28%, and the final temperature of the soy milk in the final siruping tank of overflow tanks is more than or equal to 90 DEG C. When the jellied bean curd is 50%, turning over is carried out slowly and the flow rate of the coagulant is reduced, and when the jellied bean curd is 80%, turning over and the flow of the coagulant are stopped for standing statically; the squeezing is carried out at 8-10Mpa, the moisture content of white blank is 66-73%, the inoculation is carried out at the temperature of 40 DEG C, the primary fermentation is carried out for 36-48 hours and cages are exchanged for three times, and the first exchange, the second exchange and the third exchange are carried out respectively at the temperature of 23-28 DEG C, 22-26 DEG C and 18-22 DEG C. wherein, the relative humidity in the three exchanges are all 60%; pickling is carried out for 3-5 days, then after fermentation is carried out at the temperature of 15-30 DEG C for 45-60 days, and the finished product contains 3.5-18% of salt. The method of the invention can be used for preparing the preserved beancurd.

The invention discloses a method for manufacturing a cooking wine product, belonging to the field of seasonings. The invention is characterized in that: spice is added; different dishes correspond to different alcoholic degree; key control points are optimized. The invention comprised the production course of mixing of raw material, filtering, sterilizing, bulking, cap screwing, lamp testing, labeling and code spraying followed by thermal shrinkage of plastic caps, incasing, and random inspection of the prepared cooking wines. In the invention, non-GM and green food is adopted as raw materials; 2Kg of diatomite is added to the filter recycling barrel with a pressure of 0.3Mpa and the sterilization temperature of 115-120 DEG C; the device is firstly rinsed with 2% alkali lye at 80 DEG C for 20 minutes, secondly rinsed with 2% acid liquor at 80 DEG C for 20 minutes and thirdly rinsed for 30 minutes, and then filled with water for later use; the finished product contains amino-acid nitrogen which is equal to or more than 0.2g/L, total acid which is 3-30g/L, salt which is equal to or more than 10.0g/L, and total sugar which is 0-80g/L, with alcoholic degree being 5-23V/V and color number being 40-50. The invention is characterized in that a spice is added to the raw material for manufacturing the cooking wine, the method is scientific and the obtained product is of top quality.

The invention discloses a rapid diagnosis method for groundwater pollution, wherein the method comprises the following steps: collecting environmental hydrogeology condition information of shallow soil layers in a soft soil area, and dividing according to the stratum combination type; determining a belonging stratum combination type of a pollution site; determining internal and external river distribution conditions of the pollution site; according to the belonging stratum combination type of the pollution site and the internal and external river distribution conditions, preliminarily evaluating the migration diffusion direction and the pollution depth of a pollution source in the pollution site; according to the preliminary assessment conclusion, setting a plurality of in-situ test pointsin the corresponding area and depth in the pollution site, to rapid measure a space distribution condition of pollutants; and according to the on-site measured pollutant space distribution conditions, sampling and monitoring on site in a key pollution area. The method has the advantages: the establishment of the rapid diagnosis method provides a perfect theoretical basis, technical method and tool device for improving the efficiency and effect of groundwater pollution investigation and reducing the cost of investigation.

The invention discloses a mineral processing and deep purification method for quartz sand. The method comprises the following steps of (a) during the scrubbing of the quartz sand in an acid-digestion scrubbing machine, adding a sulfuric acid solution with the weight concentration of 15-60% for acid digestion, wherein the weight ratio of the quartz sand to the sulfuric acid solution is 25-65%, the temperature for acid digestion is 50-135 DEG C, the time for acid digestion is 20-90 minutes, and sulfuric acid can quickly react with iron-bearing minerals in the quartz sand through the organic combination of the mechanical scrubbing and acid digestion of the quartz sand; and (b) after acid digestion, separating the quartz sand from filtrate through filtrating, wherein the filtrate can be recycled, and products with Fe2O3 content meeting requirements are obtained after the quartz sand is cleaned. The method has the beneficial effects that aims which can not be achieved by the conventional mineral processing methods are realized, the dependence on high-quality siliceous resources is lowered, and the utility value of the quartz sand products is increased; and the method can also be applied to the field of the mineral processing and purification of non-metallic minerals, such as quartz fine (tail) sand, feldspar and the like.

The invention discloses a foundation pit with a first support zone having the dynamic stress regulation function and a construction method of the foundation pipe. The foundation pit comprises support,and a stress regulation device is arranged at the position close to the middle of the first support in a disconnected manner; the stress regulation device comprises a top support plate, a sliding bearing and a jack; the top support plate comprises a connecting portion fixedly connected with the upper end of a steel column and a tubular support plate body; the upside of the support plate body is provided with the sliding bearing corresponding to the disconnected first support, and the sliding bearing is used for supporting the first support; the jack is arranged at the position where the firstsupport is disconnected. During construction, the steel column is arranged firstly, the top support plate and the sliding bearing are arranged at the top of the steel column, the first support is broken into two sections when cast, an embedded steel plate is arranged on fracture surface of the first support, and the jack is arranged at the position where the first support is disconnected after first support is completed; the shortcoming of the first concrete support on environmental protection control is overcome, and meanwhile, adverse effect produced from contraction of the concrete supportin the super-large foundation pit can be compensated.

The invention discloses a process method beneficial to improving the recovery rate of lead and silver in lead concentrate. The process method comprises the following steps that raw ore graded overflow products are concentrated and dehydrated, the pH value of ore pulp is adjusted after dehydration, and an inhibitor, a collecting agent and a foaming agent are added into the ore pulp; the ore pulp is subjected to lead roughing, foam products obtained after lead roughing are subjected to three-time concentration, silver-containing lead concentrate is obtained, tailings obtained after lead roughing are subjected to four-time scavenging, and lead tailings are obtained; adn a tailing product of lead concentration 1 and a foam product of lead scavenging 2 are combined into a whole to form a lead concentration middling product, the lead concentration middling product is subjected to regrinding, grading and overflowing, and the regrinding, grading and overflowing product and a raw ore grading and overflowing product are concentrated together. According to the method, raw ore concentration and intermediate product regrinding, grading, overflowing and concentration are adopted in the overall flotation environment, the flotation time is prolonged by continuously maintaining the condition of high-concentration ore pulp in the flotation process, the problem of floating of lead and silver minerals with the low flotation speed is solved, and therefore the overall recovery rate of lead and silver is increased.

The invention discloses a subway station damping beam column joint with high durability and a construction method thereof. The damping beam column joint is arranged between the column end of a middle column of a subway station and a corresponding top longitudinal beam and between corresponding middle longitudinal beams; and each damping beam-column joint comprises an elastic support connecting system, an elastic support and a protection structure, wherein the elastic support connecting system and the elastic support are matched. During construction, firstly, reserving and pre-burying of corresponding damping beam column joints on the middle longitudinal beam are completed; after a bottom plate, the middle columns of the lower two layers, side walls, a middle plate and the middle longitudinal beams are built back, pre-connection of the elastic supports and damping beam column joints between the middle longitudinal beams and the corresponding middle columns are completed; then, reserving and pre-burying of the corresponding damping beam column joints on the top longitudinal beams are completed; and after the middle columns, the side walls, a top plate and the top longitudinal beams of the next layer are built back, pre-connection of the elastic supports and damping beam column joints between the top longitudinal beams and the corresponding middle columns are completed. According to the subway station damping beam column joint, effective transmission of loads and stability of beam-column joints can be guaranteed, and the durability problem of a flexible support or a damping support can be solved.

The invention discloses a method for connecting intermittent discrete steel structure pipe joints jacked in batches and a tunnel portal. The method comprises the following steps that 1, anchor bars and a tunnel portal ring are pre-embedded on the side wall of a lining of the tunnel portal, and the anchor bars and the tunnel portal ring are fixed; 2, a grouting pipe is pre-buried in the side wall of the lining; and 3, the steel pipe joints are jacked, and after jacking of the steel pipe joints is completed, a gap between the side wall of the lining and the steel pipe joints is blocked by grouting in the grouting pipe. The tunnel portal ring and the steel pipe joints are connected and sealed through end sealing plates, a waterproof barrier is formed, water flowing out of a gap between a pipe piece and the working well tunnel portal is effectively blocked, and the safety of the tunnel portal in a pipe jacking construction period is fundamentally guaranteed; construction is convenient and fast, operation is easy, the connection forming effect is good, and the welding quality is guaranteed; compared with a traditional connecting port, a post-pouring ring beam does not need to be constructed, economic benefits are high, and operability is high.