12 results about "Direct production" patented technology

1. A method for producing direct reduced iron, in which iron ore is reduced in a DRI shaft by a reducing gas comprising hydrogen obtained by extraction from coke oven gas through a hydrogen separation unit, and a remaining portion of such coke oven gas is at least partially injected into a transition section of the DRI shaft to set the carbon content of the direct reduced iron to 0.5-3 wt. %, as well as a DRI production plant comprising a DRI shaft (1) and a hydrogen separation unit (5), the inlet of which is connected to a coke oven gas source (6), a first outlet connected to the DRI shaft for injecting hydrogen separated from the coke oven gas, and a second outlet connected to a transition section of the DRI shaft (1) for injecting at least a portion of the remaining portion of such coke oven gas.

The utility model relates to the technical field of chemical fiber production equipment, and provides a spinning circular blowing lifting device which comprises an air cylinder used for supporting a circular blowing air cylinder, an air inlet pipe fixedly arranged on the air cylinder in a penetrating mode and an air compressor connected with the air inlet pipe and used for supplying air to the air cylinder, and a stop valve is arranged on the air inlet pipe. The stop valve is arranged on the air inlet pipe for stopping, so that the air pressure conveyed by the air compressor previously is stored in the air cylinder, the annular blowing cylinder can be effectively kept within a certain time, the fault maintenance time is strived, direct production interruption can be avoided during the fault maintenance period of the air compressor, namely in a short time, and the production efficiency is improved. And the method is suitable for emergency scenes.

The invention provides an electricity consumption prediction method and device, and relates to the technical field of power load prediction. The method comprises the steps of collecting multiple pieces of feature data of a target prediction day; according to the multiple pieces of feature data, adopting a pre-trained production activity prediction model to predict production activity information of each prediction time point in the target prediction day; according to the multiple pieces of feature data, a pre-trained electricity consumption prediction model is adopted to predict electricity consumption information of each prediction time point on the target prediction day; and determining target electricity consumption information of each prediction time point on the target prediction day according to the production activity information of each prediction time point on the target prediction day and the electricity consumption information of each prediction time point. According to the method, under the condition of not depending on direct production activity information, the time point at which the production activity will be executed is predicted through the production activity prediction model, the influence of uncertainty of production activity time on electricity consumption prediction is reduced, and the accuracy of electricity consumption prediction is improved.

The application provides a large aircraft assembly damping test device and a test method, and belongs to the technical field of assembly damping test. Based on the test device, firstly, a parameterized model of a wallboard simulation piece with a damping device is established; and secondly, damping parameters considering deformation and stress distribution of key points are designed. The application provides a simulation piece for function test of a fuselage wallboard, which can adapt to the function test of fuselage wallboard equipment, such as a fuselage wallboard automatic docking and posture adjusting system. The parameterized model of the wallboard simulation piece with the damping device is established, and the damping parameters considering deformation and stress distribution of key points are designed, so that the simulation piece can adapt to the function test of the fuselage wallboard equipment. The simulation piece has a simple structure and is convenient to process, thereby reducing the cost and large equipment direct production risk for manufacturing units.

The utility model relates to multifunctional printing paper production equipment which is characterized by comprising a plurality of sets of uncoiling seats, a deviation rectifying device, a printing device, an easy-to-tear line cutting device, a marking device, a lock code pressing device, a paper pressing device, a punching device, a pressed paper conveying device, a cutting device, a separation conveying device, a superposition conveying device and a vibration paper collecting table which are sequentially arranged and mounted, the paper pulling and conveying device is mounted above the separating and conveying device, and the folding device is mounted above the stacking and conveying device. Various production processes can be formed and different types of printing paper can be produced by using and adjusting the devices in the equipment, and the production process and the equipment adopt roll-type paper as raw materials for continuous production and direct production of finished products, so that the technical problem that various types of printing paper can be directly produced on one piece of production equipment is solved.

The present application belongs to the technical field of continuous casting hollow steel and non-ferrous pipe blank, and particularly relates to a direct production of hollow pipe blank near-end type continuous casting system, method and application. The continuous casting system comprises a ladle, a long nozzle, a tundish, a separation ring, a crystallizer, a fan-shaped section, a fan-shaped section driving device, a secondary cooling water nozzle, a casting blank cutting device and a blank discharging equipment. The liquid steel in the tundish passes through a crystallizer with an angle θ with the horizontal plane and forms a certain thickness of primary solidification shell on the surface, and is then pulled out by the fan-shaped section clamping roller obliquely upward. Since the liquid steel of the tundish, the crystallizer and the fan-shaped section are in communication with each other, the liquid steel level does not rise with the rising of the pipe blank. When the height of the pipe blank pulled out obliquely upward is higher than the liquid steel level, only the hollow blank shell with a certain thickness, i.e. the hollow pipe blank, is left in the pipe blank. The hollow pipe blank produced by the present application can be directly applied to actual needs, and can also be used as a raw material for seamless steel pipe rolling production.

The invention discloses a method for producing woven bag ribbon-like filaments by directly drawing waste plastics without granulation and an extrusion device. The device comprises a forced feeding module, a plasticizing extrusion module group, a filtering module group and a ribbon-like filament forming module which are sequentially connected along the material flow direction. The low-density crushed materials are received and stably conveyed through a forced feeding device; the synergistic effect of the large-length-diameter-ratio screw and the integrated devolatilization unit is utilized, and full plasticizing of materials, impurity removal and efficient water removal are achieved in the melting process. A memory alloy filter plate with a temperature self-adaptive aperture is adopted, so that the back pressure of the system and the melt passing speed are dynamically adjusted while impurities are intercepted, and thermal degradation is actively prevented; the functional modules can be flexibly combined and configured according to the moisture content of raw materials. According to the method, a high-energy-consumption granulation link and matched working procedures in a traditional process are thoroughly omitted, a shorter and more intelligent direct production path is constructed, and the mechanical property and the production stability of the flat filaments are improved while the energy consumption and the cost are remarkably reduced.

The utility model relates to production equipment for single-copy multi-copy printing paper. The production equipment is characterized by comprising a plurality of sets of uncoiling seats, a deviation rectifying device, a marking device, an easy-to-tear line cutting device, a lock code pressing device, a pressed paper conveying device, a cutting device, a separation conveying device, a superposition conveying device, a vibration paper collecting table and a control system which are arranged in sequence, according to the production equipment, roll type carbonless copy paper is adopted as a raw material for continuous production, turnover of middle semi-finished products is reduced, and the production efficiency is improved; the paper cutting length is accurate, a finished product can be directly produced, secondary accurate cutting is not needed, working allowance does not need to be reserved, the processing loss of a traditional production mode is reduced, and the technical problems of high efficiency and low loss in production of single carbon-free copying printing paper are solved.

The utility model provides a kind of auxiliary tool of oil cylinder active column bending deformation correction. The auxiliary tool of oil cylinder active column bending deformation correction includes: press, the press includes installation platform and lower pressing column, and the lower pressing column is welded and installed with pressure block connecting plate;Lower V block, the lower V block is set on the top of installation platform, and the lower V block includes pressure block and two lower pads, two lower pads are symmetrical and are bolted on pressure block, two lower pads form V groove, and the pressure block is bolted on pressure block connecting plate;Old oil cylinder active column, the old oil cylinder active column is set on the top of installation platform. The auxiliary tool of oil cylinder active column bending deformation correction provided by the utility model can improve work efficiency, simplify operation process, reduce labor intensity and time of worker, save direct production cost, reduce operation time, have the advantages of good economic and social benefits.

The invention provides a stamping fixing positioning column which comprises a basic stand column, the basic stand column is located on a circuit board, a buckling cover is arranged on the basic stand column, and the buckling cover is of a geometric structure and is buckled on the surface of the circuit board through stamping. According to the stamping fixing positioning column, the basic stand column is machined on the fixing plate to obtain the buckling cover, then the circuit board and the fixing plate are subjected to integrated stamping forming through a punching machine, the process is simple, operation is convenient, flow assembly of the circuit board is facilitated, the production efficiency of an enterprise is improved, traditional screws and rivets are replaced with the basic stand column, and the cost is reduced. And products of different specifications are directly produced and formed, pairing according to requirements is not needed, the manufacturing cost is saved, and the economic benefits are effectively improved.

The invention discloses a machine and method for directly producing plate in granite mine. The machine is equipped with multiple saw blade main machines (0.8m, 1.2m, 1.5m, 1.7m) arranged in sequence according to size and different in diameter, each main machine has a hydraulic lifting device to adjust the cutting depth; a transverse walking and longitudinal guide rail structure is arranged to realize flexible movement of the main machine; the ore body platform has a depth over 1.3m back knife groove structure to process plate in two layers; a bottom cutting machine and an automatic polishing machine are also arranged. The use method is as follows: first, open the back knife groove on the ore body platform and divide the ore body into strips; after the machine is installed, adopt the "four-step method" to cut, i.e. different diameter saw blades are used to cut in sequence according to specific depth; after cutting is completed, the bottom cutting machine cuts the bottom horizontally; the rough plate is sent to the automatic polishing machine to polish according to material quality and thickness; finally, after detection, the plate is packed and loaded. The invention realizes direct production of plate in mine, improves production efficiency and product quality.

The utility model relates to the technical field of steel ball forging and rolling equipment, in particular to a double-helix steel ball temperature-waiting conveying device, which is characterized in that a first gear and a second gear are respectively mounted at the top end of a channel steel bracket and are positioned at the tops of a right-handed helix and a left-handed helix. According to the utility model, the two conveying shafts, namely the left-handed spiral conveying shaft and the right-handed spiral conveying shaft, with different rotating directions are arranged, and the gear motor is additionally arranged at the front ends of the two conveying shafts for driving, so that the two conveying shafts respectively rotate towards different directions, the right-handed conveying shaft rotates leftwards, and the left-handed conveying shaft rotates rightwards; and it is guaranteed that the acting force is used for moving forward the steel balls to be conveyed, clamping stagnation of the steel balls on the conveying temperature waiting device is avoided, and the direct production cost of an enterprise is reduced. Meanwhile, the front end of one conveying shaft is subjected to thin shaft machining and welding, steel balls can conveniently fall into a quenching ball channel from the thin shaft machining and welding position, punching is conducted on the lower portions of the two temperature-waiting conveying spiral lines, the pipe body is cooled, the service life of the spiral conveying shaft body is prolonged, and the replacement cost of enterprise spare parts is reduced.