137results about How to "Little impact on production" patented technology

The invention provides a three-dimensional entity secret mark anti-counterfeiting system and method. The anti-counterfeiting system comprises an object to be detected, an entity secret mark label fixed to any position of the object to be provided with an anti-counterfeiting mark, a two-dimensional code fixed to any position of the object to be provided with the anti-counterfeiting mark, a remote server and a mobile terminal, wherein the mobile terminal scans the two-dimensional code, is connected to the remote server and compares the entity secret mark label with a reference photo on the server so that counterfeiting prevention and identification can be achieved, and a random number of unique random three-dimensional hollow-out arrangement structures which are formed by a plurality of three-dimensional structure entity secret marks are arranged on the entity secrete mark label. The anti-counterfeiting system and method are easy to operate, good in interactivity and strong in anti-counterfeiting practicability, the effects of enabling an anti-counterfeiting structure to be hard to counterfeit, copy and crack are well guaranteed through the unique hollow-out three-dimensional anti-counterfeiting marks, and the extremely good counterfeiting prevention effect is achieved.

The invention discloses a method and a system for positioning coal rock dynamic disaster through infrasonic wave monitoring. The system comprises a monitoring main station and a plurality of monitoring substations, and the monitoring substations are connected with the monitoring main station through a fiber optic network; each monitoring substation is composed of three infrasonic wave sensors arranged in a triangular form, and the infrasonic wave sensors are connected with an infrasonic wave monitor; and the monitoring main station is provided with a computing server. The positioning method isthat the main station computing server filters collected data, the time-frequency analysis is performed on the data by the short-time Fourier transform (STFT), the frequency energy density is compared, signals of the main frequency band are extracted, and the calculation result is positioned through statistical analysis and time delay estimation theory. The system monitors the infrasonic wave signal generated by the fracture of the loaded coal rock. Through this method, the non-contact and regional tests are carried out on the stress distribution state of the surrounding rock of the tunnel ormines to determine the area of coal rock fracture and stress anomaly. The method is simple in installation and operation, has little impact on production, and has a large detection range and a long detection distance.

The present invention discloses electromagnetic radiation method for monitoring the stress status of mine. Electromagnetic radiation signal of rock stratum in mine is monitored with one electromagnetic radiation monitoring system and applied in analyzing the stress status of rock stratum in mine based on the corresponding relation between the electromagnetic radiation signal and the stress status of the rock stratum. The electromagnetic radiation monitoring system includes sensors, and one monitoring instrument. The sensor has one push-pull rod connected to detect the stress status in different area in the mine. The method is practical, accurate and suitable for various kinds of mine, especially coal mine.

The invention discloses a system for synergistically treating domestic garbage through a cement kiln and a method thereof. The system comprises a feeding system, a gasification incineration system, adeslagging system, a smell treating system and a leachate treating system. According to the system, a grate furnace and a cement production process technology are combined, and waste gas produced by garbage incineration is lead into a decomposing furnace of a novel dry cement kiln system, and harmful gas such as dioxin produced by garbage can be further absorbed and treated under about 880 DEG C high temperature and alkaline conditions in the decomposing furnace, thus the garbage treatment meets the requirements of harmlessness, quantity reduction and recycling requirements. The system is simple and convenient to operate, stable to run, small in investment, and low in cements on cement lines and environment, and is an ideal domestic garbage treatment scheme.

The invention relates to a reversing lifting conveyor and a conveying system. The reversing lifting conveyor comprises a rack, a lifting mechanism which is arranged on the rack, a transverse conveyingmechanism which can transversely convey, is arranged on the lifting mechanism, and is driven by the lifting mechanism to perform lifting motion, a longitudinal conveying mechanism which is arranged on the rack and can perform longitudinal conveying, and blocking mechanisms which are separately arranged at the transverse side and the longitudinal side of the rack correspondingly and can be used for blocking transverse conveying and longitudinal conveying of material frames or material trays. The reversing lifting conveyor solves the technical problem that an existing conveying mode does not have functions of reversing, transporting and buffering the material frames or the material trays.

The invention discloses a method for treating iron-containing dusts in a steel plant by using a melting gasification furnace, which comprises the following steps of: preparing uniformly mixed raw materials, namely mixing various iron-containing dusts in the steel plant, iron ore concentrate powder, adhesive and flux in a certain proportion to form the uniformly mixed raw materials; preparing lumps, namely preparing the uniformly mixed raw materials into the lumps by a cold bond agglomeration method or a hot-state agglomeration method; and smelting in a blast furnace, namely adding the prepared lumps and a certain amount of coke into the high-wind-temperature melting gasification furnace to perform melting, and finally obtaining molten iron by melting. The method for treating the iron-containing dusts in the steel plant can effectively solve the pollution problem of the iron-containing dusts, can obtain qualified molten iron, and makes full use of valuable elements such as carbon, iron and the like in wastes.

The invention provides a coke oven riser tube replacement apparatus and a coke oven riser tube replacement method, and especially relates to a coke oven riser tube replacement apparatus and a coke oven riser tube replacement method applied in the field of coke oven production. The coke oven riser tube replacement apparatus provided by the invention has the advantages of simple structure, shortening of the unkeeping time, and maintenance of the coke oven production continuity, and comprises a coal car, a fixed stand column, a rotating stand column, a crane and a transverse arm. The coke oven riser tube replacement method can reduce the danger of replacement working, and comprises the following steps: 1, rotating the transverse arm to a position above a riser tube to be replaced; 2, hoisting the riser tube to be replaced; 3, moving out the riser tube to be replaced; 4, moving a new riser tube to a position to be installed, and installing; 5, rotating the transverse arm to the initial position, and fixing. A rotatable cantilever crane in the invention has the advantages of simple structure, low cost, realization of no influences on the use performances of the coal car, coal car walking or normal production of a coke oven after installation, and flexible usage.

The invention discloses a method for precise prevention and control of rock burst in a remote area under a coal mine. The method comprises the following steps: analyzing and evaluating impact risks ofmining engineering and each adjacent area according to geological and mining conditions; determining impact vibration sources, stress wave spreading paths and rock burst risky areas; formulating keytechnological parameters of directional drilling and segmented controllable fracturing; conducting directional long drilling and branch drilling at the impact vibration sources or in areas of the impact stress wave spreading paths with a directional drilling machine; adopting retreating-type, step-by-step and segmented controllable fracturing; and conducting quantitative evaluation of accurate prevention and control effects in the remote area through monitoring and inverse analysis of effective influential areas of directional drilling and segmented fracturing. The method has the beneficial effects that bending energy, fracture energy, impact energy and structural activation energy of a high-altitude roof can be effectively reduced, or the impact stress wave spreading paths can be cut off,or stress wave spreading strength can be reduced; finally, accurate and efficient prevention and control of rock burst in a remote area can be realized; and the method is especially applicable to prevention and control of large rock burst of a roof-fracture type and a structural-activation type.

The invention discloses a method for constructing cross-over chambers with a full-coal outsize cross section under a host lane ceaseless transportation condition. The method comprises the steps of: construction for lap joint between a panel adhesive tape machine head and a camber, construction for lap joint between a working face belt lane and a chamber and maintenance for the working face belt lane, and specifically comprises the steps of: (1) performing the lap joint construction on the panel adhesive tape machine head and the arc part of the chamber, (2) maintaining the working face belt lane and protecting auxiliary facilities and cables, (3) performing lap joint construction between the working face belt lane and the arc part of the chamber, (4) penetrating through the chamber in lap joint with the panel adhesive tape machine head and the chamber in lap joint with the working face belt lane, (5) performing wall part construction on the chamber in lap joint with the panel adhesive tape machine head and performing large brushing construction on the chamber in lap joint with the working face belt lane, (6) performing arch building on the chamber in lap joint with the panel adhesive tape machine head and the chamber in lap joint with the working face belt lane, and (7) performing arch building on a cross-over point between the chamber in lap joint with the panel adhesive tape machine head and the chamber in lap joint with the working face belt lane. According to the invention, the transportation of the working face belt lane is not influenced during construction, and the difficult in performing chamber construction under a full-coal-seal geological condition is eliminated.

The invention relates to a QDF (quiescent direct furnace) direct reduction technology which comprises the following steps: uniformly mixing a metal-containing raw material and reducing agent powder, and putting into each reducing chamber, wherein in a reducing process, the reducing chambers and the reduced material are all kept in a stationary state; uniformly heating the materials in the reducing chambers by use of the heat generated by the combustion of the fuel in a combustion chamber and a combustion-supporting gas so as to perform a reduction reaction between the metal-containing raw material and the reducing agent, wherein each reducing chamber is a narrow long one-section reactor. According to the technology provided by the invention, the reducing chambers and the reduced material are all in a stationary state, the requirement on the strength of the granular raw material is reduced, and the production efficiency of a granulation process is improved; and the reducing time can be prolonged, and the metallization ratio of the reduction product is improved. The reducing chamber is not provided with a preheating area or a cooling area, the temperature is uniform, the atmosphere is uniform and consistent, and the overall quality of the reduction product is improved. The direct reduction technology has remarkable advantages of wide application range of raw materials, uniform temperature field, easy control on reduction process, high product metallization ratio, high yield and the like.

The invention discloses an intelligent diagnosis method and device for an abnormal working state of a spindle system of a machining center. The method includes the following steps: collecting a current vibration signal of a spindle; processing the collected current vibration signal of the spindle, extracting characteristic parameters, and obtaining a characteristic vector reflecting the current state of the spindle; comparing the characteristic vector of the current state of the spindle with the characteristic vector of the normal state of the spindle to judge whether the spindle is abnormal or not; and analyzing stored characteristic quantities reflecting the state of the spindle, and predicting the state change trend of the spindle. The device includes a data collection unit, a processing unit and an abnormality judgment unit connected in turn. The intelligent diagnosis method and device for an abnormal working state of a spindle system of a machining center are accurate in diagnosis, and can reduce the maintenance cost of the spindle of the numerical control machining center, shorten the maintenance time and improve the production efficiency.

The invention relates to a device for jointly testing an internal force and an external force of a shield tunnel duct piece. The device comprises a steel bar strain gauge, a soil pressure sensor, a water stop steel plate and a cable protection box and a connecting screw, wherein one end of the steel bar strain gauge is connected with a steel bar strain gauge cable and is connected with a duct piece steel bar cage through a galvanized wire binding method, the steel bar strain gauge cable penetrates through the cable protection box, the cable protection box is connected with the water stop steelplate through the connecting screw, an adjusting nut and a washer are arranged between the connecting screw and the cable protection box, a corresponding number of wiring holes are distributed in thebottom surface of the cable protection box, the top face of the cable protection box is provided with a cable protection box cover, the bottom of the cable protection box is provided with protectivesponge. The device has the advantages that the steel bar strain gauge of the device is connected with the duct piece steel bar cage through the galvanized wire binding method, accordingly the processes of steel bar cage cutting and welding of the steel bar strain gauge to a connecting rod are omitted, the embedding time of a duct piece prefabrication factory is greatly shortened, and the influenceon the production of the duct piece prefabrication factory is smaller.

The invention discloses a quick replacement method of counterbalances of a four-high mill, which is as follows: when the counterbalance of the large four-high mill is overhauled, the counterbalance fixed in a housing frame of the mill is replaced by the following steps of: firstly, confirming the safety of three parties, and stopping a medium; secondly, paving steel plates of delta 20mm on a working roller replacing rail; thirdly, disassembling a counterbalance connection bolt; fourthly, utilizing a manufactured cross traveling trolley to reversely carry the counterbalance from the inner part of the mill; and fifthly, hoisting the disassembled counterbalance by a crane. The method disclosed by the invention is simple in steps, convenient in operation, short in construction period, small in influence to the production and high in production efficiency.

The invention discloses a wellhead oil-gas-water three-phase flow static moisture content measuring system and a control method thereof, and relates to the technical field of oil production logging. The measuring system mainly comprises a wellhead oil-gas-water three-phase flow static moisture content measuring device and a signal processing sub-system; fluid in the wellhead oil-gas-water three-phase flow static moisture content measuring device flows or keeps motionless by a on-off control valve group; gas-liquid separation is carried out through a gas-liquid separation tank; moisture contentof the fluid is calculated through a capacitance level gauge; pressure monitoring and early warning for decompression are carried out through an electronic valve and a pressure gauge; and the signalprocessing sub-system comprises a wellhead signal processing circuit, a base station and a computer and is used for collecting, transmitting and analyzing moisture content signals and remote control.The system has advantage of simple structure, high measuring precision, low manufacturing and maintaining costs, being installed in a large scale and the like.

The invention provides a method for eliminating organic matters in an aluminium oxide production process. The method comprises the following steps that a crystallization auxiliary is added into undecomposed aluminium hydroxide refined liquor; the undecomposed aluminium hydroxide refined liquor containing the crystallization auxiliary and decomposed mother liquor are subjected to heat exchange; theundecomposed aluminium hydroxide refined liquor subjected to heat exchange and aluminum hydroxide crystal seeds subjected to decomposed seed filtering are mixed and stirred in a mixing tank to obtainmixed liquid, wherein the stirring speed is 70-90 r/min; the stirred mixed liquid enters a decomposition tank for decomposition; washing and causticizing treatment is conducted on scabs attached to the decomposition tank. According to the method, an organic matter crystal precipitation process is adjusted to be conducted in a seed decomposition working section, a better reaction environment is provided for organic matter precipitation, then the mixing tank is added between a heat exchanger and the decomposition tank, through the crystallization auxiliary and action of stirring, crystal seed particles which are evener and uniform in size are generated, increase of the particle size of aluminium hydroxide particles is promoted, organic matter form and critical concentration change is caused, large organic matter druses are induced, and the purpose of improving the organic matter precipitation amount is achieved.

The invention discloses a method for constructing an internal dam body of an internally-discharged strip mine dump. The method comprises the following steps that an upper surface connecting line of an original water-resisting layer is taken as an artificial water-resisting layer to fill a reference datum upper boundary; a dam body foundation pit is arranged, and a trapezoidal base platform is arranged on the center line of the dam body foundation pit; a halfpace-shaped water retaining dam core wall is built on the artificial water-resisting layer, and a reinforcing mesh and a grouting pipeline are arranged in the water retaining dam core wall; a foundation anti-seepage layer, waterproof geotechnical cloth and a clay anti-seepage layer are sequentially laid on the side, close to an original aquifer, of the water retaining dam core wall; advancing of a dumping working face is enhanced on the side, away from the original aquifer, of the water retaining dam core wall, and strip mine stripping objects are discharged to form a supporting body; a space between the clay anti-seepage layer and the original aquifer is filled to form a plugging body; and the construction is carried out according to the steps, the dump continues dumping, the facility formed in the steps is buried inside the dump, and a continuous water retaining dam is formed. The dam body is coordinated with strip mine stripping, mining and discharging operation, the water blocking effect is good, the dam body reliability is high, the influence on production is small, and the cost is low.

The invention discloses a method for glue amount on-line detecting of glue. The method comprises the following steps that a glue drum of a compound machine is placed on an electronic scale, and the glue is injected into the glue drum of the compound machine, and according to the manufacturer information of the glue, the effective solid content of the glue is recorded; the breadth of film materials to be glued and compounded is measured, and the breadth Wm is recorded, the compound machine is started, the vehicle speed of the compound machine is adjusted, the vehicle speed Vm/min of the compound machine during normal working is recorded, and the current weighing numerical value M1g of the electronic scale is recorded; and timekeeping is conducted by using a second chronograph, timekeeping time t minute is recorded, the current weighing numerical value M2g of the electronic scale is recorded, the above obtained data are correspondingly put into equations of M2-M1, L=V*t, S=L*W and (the glue using amount M/the gluing total area S)*the effective solid content of the glue, and the glue amount of the film materials at a unit area is calculated and obtained. By means of the method of glue amount on-line detecting of the glue, the glue amount can be more precisely detected, the glue using amount can be reduced, and the problem that the glue is too much or too less is prevented.

The invention relates to a reverse osmosis system with a compressed air blowing function, belonging to the technical field of reverse osmosis water treatment systems. The reverse osmosis system with the compressed air blowing function comprises a reverse osmosis membrane pressure container, a water inlet pipe and a concentrated water discharging pipe, wherein the water inlet pipe is connected with the water inlet end of the reverse osmosis membrane pressure container; the concentrated water discharging pipe is connected with the water outlet end of the reverse osmosis membrane pressure container; and the reverse osmosis system is also provided with a gas inlet valve which is matched with the water inlet end of the reverse osmosis membrane pressure container. The reverse osmosis system has the advantages that the structural design is reasonable, effective and fast online cleaning can be realized, the cleaning effect is good, and normal use is not influenced.

The invention provides a molecular sieve drying and dehydration method by using a synthetic ammonia process. According to the molecular sieve drying and dehydration method, when a first molecular sieve dryer is required to enter a regeneration state, a second molecular sieve dryer enters a pressure-rising state; when the pressure of the second molecular sieve dryer is greater than 5.95 MPa, the second molecular sieve dryer enters a wait state; when the first molecular sieve dryer stops adsorption, the second molecular sieve dryer starts to adsorb; the first molecular sieve dryer enters the regeneration state and enters a wait state after the regeneration is finished; when the second molecular sieve dryer is required to enter the regeneration state, the second molecular sieve dryer and the first molecular sieve dryer are exchanged to repeat the steps at the position in the step. According to the molecular sieve drying and dehydration method, vapor and residual carbon oxide capable of causing poisoning of a synthesis catalyst can be effectively removed. The energy conservation and environmental protection requirements are met, and the production efficiency of enterprises can be effectively improved.