109results about How to "Meet the actual needs of production" patented technology

The invention discloses a pile shoe structure for retractable drilling platforms. The structure comprises a top sealing plate, a bottom sealing plate, a retractable steel skeleton, a movable shoe side-wall shell and a hydraulic device, wherein the top sealing plate is an upper foxed plate arranged below a pile leg, and the bottom sealing plate is a lower fixed plate which is arranged at the lower part of a pile shoe and formed into a pile tip of the pile shoe; the steel skeleton is arranged below the top sealing plate, and in a retractable cage structure consisting of a plurality of steel members; the movable shoe side-wall shell can cooperate with the retractable formation of the steel skeleton of the pole shoe so as to increase the pressure bearing area of the pile shoe and prevent soil bodies around the pile shoe from entering the pile shoe; and a control system of the hydraulic device is arranged at a ballasting control center of a platform, and used for transmitting a shoe retraction instruction to the hydraulic device through hydraulic pipelines laid along the pile leg, then realizing the automatic retraction of the steel skeleton through cooperating with the ballasting control of the platform. By using the pile shoe structure disclosed by the invention, the problem of puncturing existing in the process of carrying out pile driving on a self-elevating drilling platform and the problem of difficult pile extracting existing in the process of withdrawing the self-elevating drilling platform are solved.

The invention discloses a preparation method of delta-type manganese dioxide and application of delta-type manganese dioxide to removal of trivalent arsenic from water through oxidation, and solves the problems of complex process, high running cost, and low treatment efficiency of trivalent arsenic in the conventional technology for treating water polluted by trivalent arsenic. The delta-type manganese dioxide is prepared from a potassium permanganate solution and a manganese sulfate solution, and water containing trivalent arsenic is subjected to conventional water treatment by using delta-type manganese dioxide. The delta-type manganese dioxide prepared from potassium permanganate and manganese sulfate has a large specific surface area, is high in electronegativity, and is easy to participate and separate; and trivalent arsenic can be effectively oxidized to be removed from water by using delta-type manganese dioxide. The application of delta-type manganese dioxide has the advantages of high oxidization and removal efficiency, simple process, flexibility and convenience in operation and low running cost.

A motor reversing driving reciprocating pump comprises a motor reversing belt transmission reciprocating pump body or a motor reversing chain transmission reciprocating pump body or a motor reversing gear transmission reciprocating pump body or a motor direct driving type pin roller screw transmission reciprocating pump body or a motor direct driving type ball screw transmission reciprocating pump body or a motor direct driving type rack transmission reciprocating pump body. A motor serves as a power machine and is controlled through a motor control cabinet, so that the operation states, namely the speed regulation and the steering of the motor, of the motor are accurately controlled; the reciprocating motion of the reciprocating pump or a reciprocating compressor is achieved through the forward and backward reversion of the motor, so that the automatic operation with long stroke, low jig frequency, large capacity, high pressure and high efficiency of the reciprocating pump or the reciprocating compressor is achieved, the reliability of the motor reversing driving reciprocating pump is greatly improved, and the service life of the motor reversing driving reciprocating pump is greatly prolonged.

The invention discloses a heuristic one-dimensional blanking method based on a stratified random search algorithm. The method includes: A, using a parameterized model to signify one-dimensional blanking problems; B, preprocessing billets for combination; C, obtaining various stock layout modes through the stratified random search algorithm combined by random search and deep search; D, picking out an optimal stock layout mode according to a heuristic rule; E, adding the optimal stock layout mode and a time which does not exceed the current needed maximum time of reusing the billets into a current stock layout scheme, and updating a billet set to be laid; F, repeating processes of C, D and E until the total length of the billets to be laid less than the length of raw materials, and outputting the current stock layout scheme; and G, repeating processes of B, C, D, E and F for many times, and then performing compared screening on all stock layout schemes so as to obtain an optimal stock layout scheme. The heuristic one-dimensional blanking method based on the stratified random search algorithm can avoid blindness of a traditional random search algorithm and is high in computation speed, and the obtained stock layout scheme adapts to practical production needs.

The invention relates to a full-automatic covered edge sewing machine which comprises a rack, a worktable and a machine head. The worktable is installed above the rack, the machine head is provided with a sewing needle for sewing a material with the edge to be covered, an X-axis mechanism, a Y-axis mechanism, a W-axis mechanism, a compression plate mounting seat, a compression plate, a binding tape feeding mechanism, a binding tape cutting mechanism and a unloading mechanism are installed above the worktable, the worktable is provided with a feeding station, a material sewing station and a material unloading station according to the working procedures, the X-axis mechanism, the Y-axis mechanism and the W-axis mechanism drives the compression plate to compress the material and move the material from the feeding station to the material sewing station, the binding tape feeding mechanism synchronously delivers binding tapes to the material sewing station, the binding tapes are sewn on the side of the material by using the sewing needle to achieve edge covering, the binding tape cutting mechanism cuts off too long binding tapes, the material with the edge covered is fed into the unloading station and is pushed and moved out of the worktable by the unloading mechanism.

The invention provides a preparation method of a modified sepiolite supported nano iron material, solving the problems of the conventional supported nano iron material, such as complicated preparation process, high raw material price and poor high-temperature resistance performance. The preparation method comprises the following steps of: 1, acidizing, activating and calcining sepiolite powder to obtain modified sepiolite; 2, preparing a FeSO4-sepiolite mixed solution; and 3, adding a KBH4 aqueous solution into the FeSO4-sepiolite mixed solution, stirring under the protection of nitrogen, filtering, washing and drying to finally obtain the modified sepiolite supported nano iron material. According to the invention, the preparation method is simple, the used raw materials are low in price and easy to get, the production is carried out at normal pressure and temperature and the practical production requirements are met; and the prepared modified sepiolite supported nano iron material can effectively remove nonbiodegradable organic pollutants out of water bodies, and the tannin removal rate is high up to 91.4% and direct fast black removal rate is high up to 98.9%.

The present invention is polyether type modified polyurethane sole and its making process. The materials for the polyether type polyurethane sole include polyether polyol, chain expander, water, surfactant and catalyst to form one mixture system. The polyether type polyurethane sole is made through adding stuffing into the mixture system to form the stuffing modified component, reacting the stuffing modified component and the pre-polymer to prepare stuffing modified polyurethane material, and other steps. The present invention has reduced dependence of product performance on the polyether material, and modifying with stuffing possessing physical cross-linking effect can raise the mechanical performance of the polyether type polyurethane sole.

The invention relates to a multifunctional comprehensive cutting device for a plasma plate tube. The multifunctional comprehensive cutting device comprises a frame, wherein an air compressor and a plasma arc cutting machine are arranged on one side of the frame; tracks are respectively fixed on left and right sides of the upper surface of the frame; a cutting trolley is in rolling connection with each track; a cutting sprayer is fixedly connected with the cutting trolley; a manual pressing leveling mechanism is arranged on the inner wall of the right side of the frame; at least two fastening bolts are in vertical threaded connection with an upper fixing plate; a steel plate supporting platform parallel to the tracks is arranged in the frame; a controller and a shifting device close to the track on the left side are fixedly connected with the front side of the frame; the shifting device comprises a worm and gear reduction box, a rotating control motor, a three-jaw chuck and two mounting plates; a clamping leveling mechanism is connected with the three-jaw chuck. The multifunctional comprehensive cutting device for the plasma plate tube has the advantages of wide application scope, convenience in operation, low production cost, capability of realizing the cutting at any bevel angle of the plate tube, high production efficiency and capability of realizing the pattern cutting of the plate tube.

The invention relates to a mixed scheduling system for a steam pipe network based on pipe network calculation and belongs to the technical field of mixed scheduling for the steam pipe network. The mixed scheduling system comprises a relation database server, a real-time database server, an application server and an engineer station, wherein the relation database server is connected with the engineer station and the application server; except being connected with the relation database server, the application server is also connected with a real-time database and the engineer station; the data exchange among the application server, the real-time database and the engineer station is kept; an application module comprises a relational database, a data acquisition module, a data result display module, a pipe network model calculating module and a pipe network scheduling module; the data result display module is arranged at the engineer station; the pipe network model calculating module and the pipe network scheduling module are arranged on the application server; the relational database is arranged on the relation database server; and the data acquisition module is arranged at the real-time database. The mixed scheduling system has the advantages that the system is more suitable for the actual requirement of enterprise production, and pipe network model calculation and scheduling scheme are utilized to mutually verify on the basis of a scheduling model, so as to realize the accuracy and instantaneity of scheduling strategy.

The invention provides a method for displaying and detecting void type defects in a Czochralski silicon wafer, and the void type defects are displayed by utilizing polyhedron copper precipitation. The method for displaying the void type defects in the Czochralski silicon wafer comprises the following steps of: immersing a polished silicon wafer into a copper nitrate solution for standing; rinsing the silicon wafer in deionized water, taking out and airing; performing heat treatment on the silicon wafer after copper precipitation and airing; quickly cooling the silicon wafer after heat treatment; and horizontally placing the silicon wafer after cooling in a preferential etching solution for etching. The invention further provides the method for detecting the void type defects in the Czochralski silicon wafer, and the method comprises the following steps of: preparing a silicon wafer sample according to the method; and directly observing the polished surface of the silicon wafer sample by an optical microscope or a scanning electron microscope. The polyhedron copper precipitation observed under the microscope corresponds to the void type defects. According to the method provided by the invention, the void type defects in the Czochralski silicon wafer can be clearly displayed within a shorter period of time, the observation can be conveniently performed by adopting the conventional optical microscope under common environments, and the method is suitable for detecting the void type defects in the Czochralski silicon wafer in industrial production.

The invention discloses an intelligent assembly process design method based on morpheme division and an artificial neural network. The method comprises two parts of assembly process knowledge expression and assembly process knowledge reasoning, and mainly comprises the following steps of: 1) dividing assembly process knowledge morphemes; 2) constructing, storing and expressing an assembly structure tree; 3) constructing an assembly process knowledge base; 4) calculating and comparing assembly structure tree structure similarity; 5) carrying out multi-constraint matching and retrieval on the assembly process knowledge; and 6) matching the intelligent weight adjustment with the auxiliary knowledge of the artificial neural network training model. According to the method, repeated manual laborof technicians can be reduced; the error-tolerant rate in the process design engineering is improved; the time cost in an assembly process design project is saved, the production efficiency is improved, and meanwhile, in order to establish an assembly process knowledge base, in combination with the reasoning ability of people and support an automatic assembly process design method, more comprehensive and effective guidance can be provided for assembly process design, and the assembly process design efficiency and accuracy are improved.

The invention discloses a three-dimensional model two-dimensional nested placement method based on three-dimensional printing. The method comprises the following operation steps: S100: the three-dimensional model has attributes in X, Y and Z directions, placing the three-dimensional model on a two-dimensional plane only having the attributes in X, Y and Z directions, projecting the three-dimensional model perpendicular to an XY plane to obtain a contour polygon of the model, and calculating according to the contour polygon to obtain an angle suitable for placing each model in the plurality ofmodels; S200, determining a model placement sequence after the contour polygon is solved; S300, according to the determined model placement sequence, sequentially placing the models according to a certain angle, and obtaining a placement result; and S400, repeating the previous step S300 for multiple times to obtain a plurality of instance results, and selecting the optimal instance result as thefinal result. According to the method, more models can be placed on the same platform, more parts can be printed at the same time, the production efficiency is greatly improved, and the actual production requirements can be met.

The invention discloses a product inspection data acquisition device. The device comprises a data acquisition terminal and a three-dimensional visual inspection module. The data acquisition terminal scans a bar code of a to-be-detected product through the bar code scanning module, obtains inspection information of the to-be-detected product, and transmits the obtained inspection information to thethree-dimensional visual inspection module, and the three-dimensional visual inspection module completes inspection of the to-be-detected product. The three-dimensional visual inspection module further comprises an inspection task management module, a user management module, an inspection execution module, a lightweight model display module and an inspection log module. According to the device, visualization of product inspection and informatization of quality data can be achieved, product quality detection, analysis and management are combined, and actual production requirements are met.

The invention provides a transformer oil chromatographic data comprehensive analysis and defect prediction system and method. Discrimination research on oil chromatography invalid data is carried outfrom two dimensions of single data and combined data, the disadvantage of the high misjudgment rate of a single method is avoided, and the credibility of online monitoring data is improved; multiple predictive models are comprehensively used to carry out trend prediction of oil chromatography online monitoring data, and the accuracy of prediction is improved; and a transformer fault combination diagnostic technology is proposed, and the low-energy latent fault can be found as early as possible. According to the transformer oil chromatographic data comprehensive analysis and defect prediction system and method, while the latest industry standard is complied, various data analysis methods are comprehensively used, systematic research on abnormality discrimination, trend prediction, fault diagnosis and transformer status comprehensive evaluation of the transformer oil chromatographic data is carried out, the labor intensity of a management department is effectively reduced, the latent faults for operating a transformer can be timely discovered, business data support is provided for transformer health state assessment and maintenance decision making, the occurrence of sudden accidentsis avoided, and safe operation of a power grid is ensured.

The invention relates to a preparation method of iron nanoparticles, in particular to a preparation method of ClO3- ionic liquid dispersed iron nanoparticles. According to the method, by adding certain dispersant, soluble ferrous or ferric iron salt is dissolved in distilled water (or mixture of distilled water and ethyl alcohol) to form iron salt solution by means of liquid-phase chemical reduction; reducing agent with strong reducibility, such as hydroboron, is directly used to reduce iron ions into zero-valent iron; a product is filtered and washed and vacuum-dried so as to obtain well-dispersible iron nano-powder material with the nano-micro structure. The iron nanoparticles prepared are spherical with small diameter and narrow particle size range and have certain oxidation resistance. The iron nanoparticles prepared by the method are well dispersible, and the problem that iron nanoparticles agglomerate easily is solved effectively. The products are high in purity and small and even in particle size, the process is simple and easy to control, the preparation method is performed under normal temperature and normal pressure, and actual production needs are met.

The invention relates to the field of irrigation and water conservancy, and an evaluation method of drip irrigation uniformity. The evaluation method comprises the following steps: randomly selecting a field part of land for drip irrigation, selecting a rectangular measurement center of irrigation uniformity; uniformly setting eight soil moisture measurement points around a sideline of the rectangular measurement center; irrigating the irrigation area; measuring the soil moisture of a position 0-80 cm below each moisture measurement point 2 respectively, performing the measurement once every 20 cm in depth; calculating a standard deviation s of the soil moisture at different depths of 0 cm, 20 cm, 40 cm, 60 cm and 80 cm respectively; evaluating the drip irrigation uniformity according to the standard deviation s of the soil moisture, wherein the evaluation grade comprises four grades of being excellent, good, common and poor. The evaluation method is simple and convenient in operation, economical and practical, the provided irrigation water utilization coefficient evaluation is relatively accurate, and the water-saving efficiency of drip irrigation is further improved.

The invention relates to a preparation method of a normal temperature crosslinking aluminum crosslinker for a shale gas fracturing fluid. The preparation method includes the steps: firstly, dissolvingaluminum ion auxiliaries in water to prepare first mixed solution; heating the first mixed solution to reach the temperature of 50-80 DEG C, stirring the first mixed solution and adding an organic matter serving as a complex ligand to obtain second mixed solution; secondly, performing thermostatic reaction on the second mixed solution for 2-4 hours and keeping the second mixed solution clear andtransparent; adding pH (potential of hydrogen) regulators into the second mixed solution and adjusting the pH value of the second mixed solution to be 6.0-8.0 to obtain faint yellow homogeneous transparent liquid. The pH of the crosslinker prepared by the preparation method is 6-8, and corrosion of oil pipe equipment and the like is reduced. Effective crosslinking components are released at normaltemperature and can be crosslinked with low-concentration hydrolytic polyacrylamide in fracturing construction to form a stable gel system, the crosslinker has performances such as strong viscous elasticity, high temperature resistance and high salinity resistance, a most permeable zone can be limitedly plugged, water injection effects are improved, and gas well recovery ratio is increased.