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55results about How to "Improve recovery speed" patented technology
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Functional porous film, sensor, method of manufacturing functional porous film, method of manufacturing porous metal film, and method of manufacturing sensor
InactiveUS20050109617A1Improve accuracyImprove precision controlCell electrodesMaterial electrochemical variablesMetallurgyPorous film
Provided are a functional porous film having a plurality of functions, a method of manufacturing the same, and a sensor using the same. In the functional porous film, a functional portion having a different function from a porous body is disposed on the inner wall of a pore of the porous body. The functional porous film is formed through forming a precursor film including a pore-forming powder such as an organic powder on which a material powder of the functional portion is deposited and a material powder of the porous body, and then heating the precursor film to remove the pore-forming powder and sinter the material powder of the porous body.
Owner:TDK CORPARATION
Fuzzy image integrated processing method and system
InactiveCN108305230AGuaranteed accuracyAccurate estimateImage enhancementImage analysisPattern recognitionFrequency spectrum
The invention discloses a fuzzy image integrated processing method and system. The fuzzy image integrated processing method includes the steps: S10, according to the extension degree of a fuzzy imagespectrogram, identifying the fuzzy type of a fuzzy image, wherein the fuzzy type includes defocus fuzzy and motion fuzzy; S20, if the fuzzy image is defocus fuzzy, estimating the fuzzy kernel througha knife-edge method, and if the fuzzy image is motion fuzzy, adaptively presetting an algorithm to estimate the fuzzy kernel; and S30, based on the fuzzy kernel, by means of a hyper-Laplace prior deconvolution algorithm to obtain a clear image. The fuzzy image integrated processing method and system can distinguish according to difference of the fuzzy type of the fuzzy image, according to the degradation mechanism of different fuzzy type, can set a corresponding fuzzy kernel estimation algorithm so as to estimate a fuzzy kernel which is more realistic, and can perform accurate fuzzy kernel estimation based on a Gaussian model, specifically in allusion to the defocus fuzzy image. The fuzzy image integrated processing method and system have the advantages of being suitable for restoration ofmore real fuzzy images, being simple in the restoration method, being high in pertinency, being accurate and quick in restoration, and being high in quality of restoration.
Owner:SHANGHAI KANGFEI INFORMATION TECH CO LTD
Joint treatment method for gas and coal spontaneous combustion in night distance seam mining
InactiveCN107859530APrevent overrunningLow costDust removalFire preventionCoal spontaneous combustionControl system
The invention discloses a joint treatment method for gas and coal spontaneous combustion in night distance seam mining. Gas gushing out of a stope working face is treated through a 'two intakes and one return' working face ventilation system, long drill holes in the trend of a fissure zone are utilized to replace a high pumping lane to extract gas gushing out of residual coal of night distance seams and a coal seam, thus corner gas overflow on the stope working face is avoided, and the gas extraction project cost is reduced. Gas injecting pipelines are arranged on a belt gate roadway of the stope working face to continuously inject liquid carbon dioxide into a goaf to restrain spontaneous combustion of the residual coal of the coal seam, low-position drill holes are formed in a track gateroadway of the stope working face to inject nitrogen to prevent spontaneous combustion of the coal of the night distance seams after extraction collapse, thus a coal spontaneous combustion three-dimensional preventing and control system of the goaf is formed, float coal spontaneous combustion in the goaf is accurately prevented and treated, finally, the purpose of joint treatment for gas and coalspontaneous combustion in night distance seam mining is achieved, the coal recovery rate of coal and the working face stoping continuous speed are increased, and safe production of the tope working face is guaranteed.
Owner:CHINA UNIV OF MINING & TECH (BEIJING)
Combined spontaneous gas and coal combustion control method during roof cutting lane forming non-pillar mining
InactiveCN107725097ALess gushImprove recovery speedDust removalFire preventionCombustionLiquid carbon
The invention discloses a combined spontaneous gas and coal combustion control method during roof cutting lane forming non-pillar mining. A middle laneway left in a roof cutting lane forming non-pillar technology is fully used; in the combined spontaneous gas and coal combustion control method, an E-shaped working face ventilating system and a goaf stepping-type pipelaying and liquid carbon dioxide injection technology are used; the E-shaped working face ventilating system consists of two side laneways, a middle laneway, mining area downhill (uphill) lanes and contact lanes; the E-shaped working face ventilating system is used for controlling gas gushing from a current stoping working face; the goaf stepping-type pipelaying and liquid carbon dioxide injection technology is used for controlling spontaneous coal combustion in a goaf. By the combined spontaneous gas and coal combustion control method used in the stoping working face, the gushing amount of the gas during stoping of the working face is effectively reduced, dangers of gas over-limitation in the stoping working face and spontaneous coal combustion in the goaf are avoided, the stoping speed of the working face is increased, the coal recycling rate and the working face stoping connection speed are increased, and the safe production of the working face is guaranteed.
Owner:CHINA UNIV OF MINING & TECH (BEIJING)
Gas control method for large-mining-height working face of high gas coal seam
The invention provides a gas control method for a large-mining-height working face of a high gas coal seam, and belongs to the technical field of safety of mines. The gas control method comprises the steps of arranging a first bed extraction tunnel during excavating at the working face; upwards arranging a crossing hole through the first bed extraction tunnel to pre-extract gas; arranging and cutting holes in the bed extraction tunnel to pre-extract gas; arranging an inclined connection roadway to form a ventilation circuit; arranging a second bed extraction tunnel and a connection roadway; pre-extracting gas through the crossing hole which is upwards arranged through the first bed extraction tunnel; arranging a high extraction tunnel to reach a gob caving slit band; arranging the crossing hole in the high extraction tunnel; pumping gas at the high extraction tunnel. According to the gas control method for the large-mining-height working face of the high gas coal seam, gas pumping drilling holes are arranged in each tunnel, a gas treatment scheme under the combination of the bed extraction tunnel, the high extraction tunnel and the current coal seam extraction is created, and therefore, the gas emission rate in the excavating and recovery periods at the working face can be effectively reduced, the continuing speed of recovery at the working face is raised, the gas accumulated at the working face and upper corners and ultralimit of gas can be effectively avoided, and as a result, the safety in production at the working face can be ensured.
Owner:LIAONING TECHNICAL UNIVERSITY
Gas control method of outburst coal seam
InactiveCN105927269AOutbreak prevention measures are reasonableReliable and economical protection against outburstsGas removalProcess engineeringCoal
The invention discloses a gas control method of an outburst coal seam. Three low-level gas suction tunnels, three coal roads and one mining face upper corner high suction tunnel are distributed on an outburst dangerous working surface to form a one-face and multi-tunnel region gas comprehensive control layout. Rapid tunneling of the coal roads is shielded by the pre-pumped coal road strip coal body gas of the crossing holes of the low-level gas suction tunnels and the coal seam gas of a backstoping region is pre-pumped back by drilled boreholes down the seam of the current coal seams of the three coal roads; coal seam stress is released and the gas of an upper corner and a goaf is pumped by the mining face upper corner high suction tunnel, so that the safe and efficient production of a mine shaft is realized. With the adoption of a management method, a partial outburst prevention measure is cancelled and a tensioned takeover layout is alleviated; the tunneling speed of the coal roads and the backstoping speed of a working surface are improved and the safe foundations of coal and gas outburst mine shafts are enhanced; powerful technical guarantees are provided for the safe and efficient production of the mine shafts.
Owner:杨国和
Orthopaedics rehabilitation treatment equipment with magnet therapy and blood circulating functions
InactiveCN106726326ASmooth transmissionGood transmission effectElectrotherapyOperating chairsHydraulic cylinderTherapeutic Devices
The invention relates to orthopaedics rehabilitation treatment equipment with magnet therapy and blood circulating functions. The orthopaedics rehabilitation treatment equipment comprises a mounting plate, two symmetrically-arranged lifting adjusting mechanisms and two symmetrically-arranged linear guide rails are installed above the front side of the mounting plate, the two linear guide rails are located between the two lifting adjusting mechanisms, adjusting plates are installed on the two linear guide rails, and the two ends of each adjusting plate are symmetrical installed on the two lifting adjusting mechanisms; the lower end of each adjusting plate is symmetrically provided with two height adjusting hydraulic cylinders, the top ends of the two height adjusting hydraulic cylinders are provided with supporting plates through flanges, and the lower end of each supporting plate is symmetrically provided with two shoulder massaging devices through rib plates; a physical therapy chair is installed below the front side of the mounting plate, and magnet therapy mechanisms are arranged inside the upper side of the front end face of the physical therapy chair and the inside of the middle end of the physical therapy chair. According to the rthopaedics rehabilitation treatment equipment with the magnet therapy and blood circulating functions, a rehabilitation treatment function of dual-shoulder omnibearing flexible circulating massage and magnet therapy blood circulating can be achieved, and the orthopaedics rehabilitation treatment equipment has the advantages of being uniform in massage strength, good in massage effect, high in therapy comfort level, and high in rehabilitation treatment speed and the like.
Owner:王倩
Ratchet wheel of wheel hub of bicycle
The invention mainly provides a ratchet wheel of a wheel hub of a bicycle. The ratchet wheel is arranged between a first wheel hub base and a sleeve base and comprises a blocking ring which is arranged inside the wheel bub base fixedly, a driven base, a conical surface, a blocking portion and a magnetic group; wherein an inclined cone inner hole and a blocking edge are arranged on the blocking ring, a driving base is arranged between the wheel hub base and the sleeve base, and a plurality of first ratchet teeth are arranged on a one side end face of the driving base, which faces towards an axial ring inside the wheel hub base; the driven base is arranged inside the inclined cone inner hole and corresponds to a driving group, the external diameter of the conical surface can be matched with the inclined cone inner hole, the blocking portion can be blocked by the blocking edge in one direction, a driven base ring is provided with a plurality of second ratchet teeth which can be meshed with the first ratchet teeth, and the magnetic group is arranged between the driven base and the wheel hub base and provided with a first magnetic part and a second magnetic part, which are respectively arranged inside the wheel hub base and on the driven base and are in a mutual exclusion state. Thus, the inclined cone inner hole which is in an inclined cone shape and the conical surface design are adopted, the friction force is reduced, the restoring speed of the driven base is increased, and the sensitivity of a ratchet wheel group is improved further.
Owner:KUNSHAN HENRY METAL TECH
Service plate turnover device
InactiveCN109399067AImprove recovery speedFully automatedConveyorsConveyor partsEngineeringMechanical engineering
The invention discloses a service plate turnover device. The service plate turnover device comprises a service plate conveyor A, a meal collecting groove, collecting barrels, a plate service conveyorB and a service plate collecting trolley, wherein the meal collecting groove is installed below the service plate conveyor A, and the meal collecting groove is divided into four single grids; and theservice plate conveyor B is installed above the third single grid and the fourth single grid, the collecting barrels are installed in the single grids of the meal collecting groove, an inclined sliding plate is arranged on one side of the service plate conveying machine B, and the service plate collecting trolley is arranged at the lower part of the inclined sliding plate. According to the device,a magnet is arranged on the service plate conveyor A, the service plate is attracted by the magnetic force, the service plate is enabled to be turned over in a moving process, residual food in the service plate is poured into the collecting barrels, the automation can be realized in a whole process, so that the working efficiency is improved, the labor intensity is reduced, and the device is particularly suitable for all enterprises, unit and a canteen of school, and the recovery and clearing speed of the service plate can be greatly improved.
Owner:NANNING UNIV
Annular arrangement route mining method
ActiveCN110939443AReduce exposed areaImprove safety production factorUnderground miningClimate change adaptationMining engineeringMechanical engineering
The embodiment of the invention discloses an annular arrangement route mining method which is suitable for medium-thick ore bodies and above. The construction steps are as follows: three stope main connecting roadways are constructed in a delineated ore body, a first-step route is constructed to a left stope connecting roadway and a right stope connecting roadway along the position of the stope main connecting roadways parallel to the trend of the ore body, and a second-step route is constructed to the stope main connecting roadways along the boundaries of a left stope and a right stope; the first-step route is provided with a special cemented filling drainage well, the second-step route is provided with a reserved special ventilation well, and a graded tailings filling process is adopted;the route mining sequence, filling, ventilation and other processes of an upper section and a lower section are exchanged, the workload of stope preparation is reduced until stope coal extraction isfinished, alternate roof-contact filling upward mining of the first-step route and the second-step route of the stope is carried out, and the undercutting work quantity is reduced; and graded tailingsfilling and cemented filling are constructed alternately, and the advantages that the filling cost is reduced, the labor efficiency is high, the stope preparation work amount is relatively small, thestrength of a filling body is high, and the ventilation effect is good are achieved.
Owner:甘肃省合作早子沟金矿有限责任公司
Interface display method and device for integrated multi-dimensional information monitoring
The invention discloses an interface display method and an interface display device for integrated multi-dimensional information monitoring. The device comprises an item information display unit, a telemetering curve display unit and an interval histogram display unit, wherein the item information display unit is used for displaying an item information display box in a monitoring interface, wherein the item information display box mainly comprises signals occurring in an affiliated interval area thereof within a preset time; the telemetering curve display unit is used for displaying a telemetering curve display box in the monitoring interface, wherein the telemetering curve display box mainly comprises the telemetering point information, a telemetering real-time curve, a telemetering average value and telemetering limit information of the interval area; and the interval histogram display unit is used for displaying an interval histogram display box in the monitoring interface, wherein the interval histogram display box mainly comprises an interval switch, real-time disconnector status, and remote-signaling light indicator and telemetering information of the interval area and the intraday action frequency information of each protection signal in the interval area. By using the method and device disclosed by the invention, the most useful information can be screened out timely, and the telemetering curve and the interval histogram can be checked simultaneously, thereby improving the speed of cable reply of a power grid.
Owner:FOSHAN POWER SUPPLY BUREAU GUANGDONG POWER GRID
High-sensitivity alcohol-sensitive gas sensor, preparation method thereof, and preparation method of mesoporous SnO2 material
ActiveCN104310306APromote crystallizationReduce hard agglomeratesMaterial nanotechnologyIndividual molecule manipulationAir atmosphereSlurry
The invention discloses a preparation method of a mesoporous SnO2 material. The preparation method comprises the following steps of dissolving 3.1g of CTAB (Cetyl Trimethyl Ammonium Bromide) into 40mL of water to obtain a surfactant solution; adding 0.11g of dodecylamine into the surfactant solution; adding a prepared ammonia water solution into a mixed solution to obtain a template agent solution; dissolving 10.5g of SnCl4.5H2O into 80mL of water and adding the prepared solution into the template agent solution to obtain a white slurry-like solution; performing reaction on the white slurry-like solution at the temperature of 160 DEG C for 12h, roasting the treated white slurry-like solution in air atmosphere, and preserving heat for 1h to prepare the mesoporous SnO2 material. The invention further discloses a high-sensitivity alcohol-sensitive gas sensor and a preparation method thereof. Impurities and structural defects caused by after-treatment such as high-temperature calcination or ball milling can be avoided, high-temperature roasting crystallization is not needed, and hard powder agglomeration which is difficult to avoid in the high-temperature roasting process is reduced.
Owner:XIAN TECHNOLOGICAL UNIV
Relay unit improvement for electrostatic suction device power supply apparatus
The invention discloses a relay unit improvement of an electrostatic pull-in device power supply, which is characterized by adopting IC base inserting mode at the welding position of the original relay (K1); substituting the original relay (K1) to a modular designed single PCB plate with relay function, wherein, the PCB plate is welded with row-shaped needle seats, RC filter circuit and a relay (K3) with strong current capacity, the input and output pins of the original relay (K1) and the input and output pins of the relay (K3) are mapped to the probes on the row-shaped needle seats for corresponding welding. Adoption of the inventive relay unit improvement method can effectively eliminate the arc discharge phenomenon and filter the vast majority of high-frequency signals to resolve the return coupling voltage problem of the machine after the ESC, and to extend the life of the relay; and increase the rotating restoration velocity of the machine; simultaneously reduce the integral condemnation factor of the ESC supply unit.
Owner:HEJIAN TECH SUZHOU
Image restoration method and device, electronic device and storage medium
ActiveCN109886891AReduce complexityImprove recovery speedImage enhancementImage analysisComputer visionImage restoration
The embodiment of the invention discloses an image restoration method. The method comprises the following steps of carrying out region division on an acquired image to obtain more than one sub-image,inputting each sub-image into a multi-path neural network, restoring each sub-image by adopting a restoration network determined for each sub-image, and outputting the restored image of each sub-imageto obtain a restored image of the image. By implementing the scheme, the image restoration speed is increased.
Owner:BEIJING SENSETIME TECH DEV CO LTD
Nondestructive explosion mining method for underground gently-inclined thin-layered jade mine
ActiveCN105298493AEasy to implementImprove securityUnderground miningSurface miningEngineeringProtection layer
The invention discloses a nondestructive explosion mining method for an underground gently-inclined thin-layered jade mine. The method employs the manners of explosion and manual and mechanical operation and comprises the following concrete steps: reserving hanging-wall surrounding rock with a certain thickness above ores as a protection layer of the ores; perforating a rows of pre-splitting holes in the protection layer; and before stoping, blasting the pre-splitting holes to form a pre-splitting crack so as to reduce damage of explosive stress waves to the jade mine and realize safe and nondestructive mining of the jade mine. The method provided by the invention is simple to implement and has high security; and the mined jade ore has a regular shape, a great size, no damage and a high economic value.
Owner:WUHAN UNIV OF TECH
Novel method suitable for flat ground type tailings pond tailings dry type recovery
ActiveCN106014409AImprove recovery speedShorten the mining periodUnderground miningPaving gutters/kerbsMining engineeringCrushed stone
The invention discloses a novel method suitable for flat ground type tailings pond tailings dry type recovery. A tailings pond is surveyed, a temporary broken stone road (1) is paved with broken stone from a tailings pond dam body to a tailings pond drainage shaft (2) to serve as a temporary construction road, temporary drainage ditches are excavated in the two sides of the road through an excavating mechanical device, partitioned excavating is conducted on to-be-recovered tailings below tailings pond beach faces (1) on the two sides of the temporary broken stone road (1) through an excavator with the working radium of 8-18 m after accumulated water in the area of the pond is drained, recovery of the next region is conducted after recovery of one region is completed till tailings of all the regions of one stratum are thoroughly recovered, partitioned excavating is conducted on tailings on the two sides of a temporary broken stone road on the lower layer till tailings of the tailings pond are completely developed, then the tailings recovery work of the tailings pond is rapidly and efficiently completed on a large scale, the tailings recovery efficiency of the tailings pond is improved, recovery cost is reduced, and recovery time is saved.
Owner:SINOSTEEL MAANSHAN INST OF MINING RES +1
Flat bottom structure sublevel rock drilling stage ore removal subsequent cut-and-filling stoping method
ActiveCN110685737AReduce frictionImprove liquidityMining devicesDisloding machinesRock cuttingStoping
The invention relates to the technical field of mining of metal and non-metal ores, in particular to a flat bottom structure sublevel rock drilling stage ore removal subsequent cut-and-filling stopingmethod. The method is suitable for stoping sharply inclined and inclined ore bodies. According to the method, the mining method is suitable for mining thick ore bodies, extremely thick ore bodies, and the sharply inclined and inclined metal and non-metal ore bodies, wherein the sharply inclined and inclined metal and non-metal ore bodies are characterized in that the friction forces of the contact surfaces between the footwall boundaries of the ore bodies and bottom plate surrounding rocks are small, the ore fluidity is good, and the movement angles of ore footwalls are 30 degrees or above; sublevel open stope mining and mined-out area subsequently-filling are achieved, the mining high efficiency of a caving method is achieved, and the safety of a filling method is achieved; and the mining environment is safe, the mined-out area is treated through utilizing the filling method, the ore recovery rate is improved, and the ore dilution rate is reduced.
Owner:HEBEI PROVINCE FANSHAN PHOSPHORITE CO LTD
Method for intercropping high-fall-dormancy-grade medicago sativa in hybrid pennisetum urpureum in south regions
InactiveCN106105747AIncrease crude protein contentIncrease total digestible nutrientsHops/wine cultivationTurf growingPennisetum purpureumWood pasture
The invention discloses a method for intercropping high-fall-dormancy-grade medicago sativa in hybrid pennisetum urpureum in south regions, and relates to the technical field of pasture cultivation and utilization. The method comprises the following steps: performing deep ploughing on an intercropping land, applying a sufficient base fertilizer, performing vegetative propagation on seed stems of 'Guimu No.1' hybrid pennisetum urpureum, and performing hole sowing; performing strip cropping on a variety of medicago sativa of which the fall-dormancy grade is higher than 6; applying a nitrogenous fertilizer for three times a year at the beginning of March, the beginning of June and the end of August after the grass is cut; performing intertillage weeding once from the beginning of July to the beginning of September while the medicago sativa grows slowly. The intercropping grass can be cut for 7-9 times a year, so that the content of protein in the mixed feed grass can be relatively high, the total amount of digestible nutrients in the mixed feed grass can be increased, and the method is suitable for providing green feed which is relatively high in nutrient value to middle / small-scale livestock farms in the south regions. The method can both meet manual harvesting operation in a small-scale livestock farm, and is applicable to small-size mechanical operation of southern slope croplands.
Owner:湖南德人牧业科技有限公司 +1
Oblique ore body upward incision trough broaching detonation method
The invention discloses an oblique ore body upward incision trough broaching detonation method. During upward incision construction, upward incision is conducted two times; a shallow hole drill jambo is used for utilizing the oblique cut for conducting drilling and blasting tunneling on the accurate mining high upper, the compensation space and the free face of secondary blasting are increased, and the oblique length of the upward incision is reduced; and then a medium-deep hole drill jambo is used for utilizing the cylinder cut to conduct one-time throughout detonation on cutting. By means of the oblique ore body upward incision trough broaching detonation method, the oblique ore body upward incision can form the upward incision through one-time shallow hole drilling and blasting and one-time medium-deep hole drilling and blasting, safety risks in the multi-time shallow hole trough broaching operation process of a traditional method are effectively reduced, the problem that in the oblique ore body trough broaching process, a trolley, an excavator and other devices cannot directly work on net anchoring, rock drilling and scraping operation without bottom rising due to the large ore body gradient is solved, and the purposes of increasing the mining speed, improving the ore quality and reducing the safety risks are achieved.
Owner:GUIZHOU KAILIN GRP CO LTD
Magnetic therapy blood circulation rehabilitation therapeutic apparatus for medical orthopedic department
ActiveCN108379023ASmooth transmissionGood transmission effectElectrotherapyOperating chairsHydraulic cylinderPhysical medicine and rehabilitation
The invention relates to a magnetic therapy blood circulation rehabilitation therapeutic apparatus for the medical orthopedic department. The therapeutic apparatus comprises a mounting plate, two lifting adjusting mechanisms and two linear guide rails are symmetrically mounted on the front side face of the mounting plate, and the two linear guide rails are located between the two lifting adjustingmechanisms; an adjusting plate is installed on the two linear guide rails, and the two ends of the adjusting plate are symmetrically arranged on the two lifting adjusting mechanisms; two height adjusting hydraulic cylinders are symmetrically arranged at the lower end of the adjusting plate, the tops of the two height adjusting hydraulic cylinders are provided with a supporting plate through flanges, and two shoulder massaging devices are symmetrically mounted at the lower end of the supporting plate through rib plates; a physiotherapy chair is arranged under the front side face of the mounting plate, and magnetic therapy mechanisms are arranged in the upper side and in the middle of the front end face of the physiotherapy chair respectively. According to the therapeutic apparatus, the rehabilitation therapy functions of double-shoulder omni-directional flexible circulation massage, magnetic therapy, muscle relaxing and blood circulation promoting can be achieved, and the therapeutic apparatus has the advantages of being uniform in massage strength, good in massage effect, good in treatment comfort degree, high in rehabilitation treatment speed and the like.
Owner:张艳平 +1
ratchet for bicycle hub
Owner:KUNSHAN HENRY METAL TECH
Hydraulic tensioner resetting device capable of preventing jamming deformation and implementation method thereof
ActiveCN113635041AImprove the fixed effectEasy to fixMetal working apparatusMetal-working hand toolsHydraulic pressureControl theory
The invention discloses a hydraulic tensioner resetting device capable of preventing jamming deformation and an implementation method thereof. The hydraulic tensioner resetting device comprises a fixing seat, a connecting seat is fixed to one side of the outer wall of the top of the fixing seat, a rectangular groove is formed in the outer wall of one side of the connecting seat, and a threaded rod is rotationally connected between the inner walls of the two opposite sides of the rectangular groove through a bearing; and the outer wall of the threaded rod is in threaded connection with a threaded block, the threaded block is in sliding connection with the rectangular groove, a reset plate is fixed to the outer wall of one side of the threaded block, a supporting seat is fixed to one side of the outer wall of the top of the fixing seat, a supporting groove is formed in the outer wall of the top of the supporting seat, and a clamping mechanism is arranged in the supporting groove. According to the hydraulic tensioner resetting device, the situation that a hydraulic tensioner falls down due to the fact that the pressurizing force is large when the hydraulic tensioner is reset, and accordingly resetting of the hydraulic tensioner is affected is prevented, the situation that due to jamming, the hydraulic tensioner is damaged due to the fact that the pressurizing force is large when the hydraulic tensioner is pressurized is prevented, and the resetting speed of the hydraulic tensioner is increased conveniently.
Owner:JIANGSU HUAEN MACHINERY TECH
Outburst elimination method for outburst coal seam based on controllable shock wave permeability improvement
ActiveCN112709574AReduce riskEnhanced balanceUnderground miningSurface miningMining engineeringShield tunneling
The invention relates to a coal seam outburst elimination method, in particular to an outburst elimination method for an outburst coal seam based on controllable shock wave permeability improvement. The outburst elimination method for the outburst coal seam based on controllable shock wave permeability improvement aims at solving the technical problems that in an existing outburst elimination technology for underground bedding drilling of the outburst coal seam, the use cost is high, the suction effect is poor, and hole collapse is prone to happening. The method comprises the following steps of 1), drilling an permeability improvement drill hole for shield tunneling; 2), performing shock wave anti-reflection operation and gas extraction on the permeability improvement drill hole for shield tunneling; 3), tunneling a roadway; 4), drilling, permeability increasing and tunneling. specifically, 411), drilling a plurality of permeability improvement drill holes for outburst elimination in a plurality of areas, and performing shock wave permeability improvement operation and gas extraction; 421), drilling the permeability improvement drill hole for shield tunneling; and 431), tunneling the roadway again; 5), repeating until tunneling to a preset open-off cut position; and 6), tunneling the preset open-off cut and the preset roadway on the other side, and stoping the coal face.
Owner:西安闪光能源科技有限公司 +1
Method for extracting top coal gas during fully-mechanized top coal caving period of extra-thick coal seam
PendingCN113653527ASolve the overrun problemReduce influxMining devicesDirectional drillingMining engineeringCoal mine methane
The invention relates to the technical field of coal mine gas extraction, and discloses a method for extracting top coal gas during a fully-mechanized top coal caving period of an extra-thick coal seam. The method comprises the following steps of (1) designing bedding directional long drilling parameters: designing the bedding directional long drilling parameters according to coal seam occurrence conditions and firmness coefficients; (2) conducting directional drilling construction, specifically, conducting bedding directional long drilling on the coal seam before working face stoping, connecting a pipeline to a hole opening, and the pipeline is connected with negative pressure extraction equipment; (3) crushing the top coal: repeatedly supporting and extruding the top coal by a bracket of a stope face to generate cracks in the coal seam, and continuously desorbing the gas in the coal seam; and (4) conducting top coal caving: during the top coal caving period, a large amount of gas rushes to the top of the working face and is continuously pumped out through a drill hole. The method solves the problem that a large amount of desorbable gas generated in the coal caving period cannot be effectively extracted in time through a coal seam roof high-position drilling hole or a high drainage roadway, the desorbable gas instantly flows into the working face, so that the gas of an upper corner or a return airway exceeds the limit.
Owner:CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
Hydraulic stretcher reset device and implementation method for preventing jamming and deformation
ActiveCN113635041BEasy to fixPrevent fallingMetal working apparatusMetal-working hand toolsScrew threadMechanics
Owner:JIANGSU HUAEN MACHINERY TECH
Fixing device and fixing method of roadside packing bag of remained gateway along goaf
PendingCN110700879AReduce labor intensityImprove recovery speedMaterial fill-upStructural engineeringMechanical engineering
The invention provides a fixing device and a fixing method of a roadside packing bag of a remained gateway along a goaf. The fixing device comprises a fixed frame and support bars, and the fixed framecomprises three fixed bodies which are hinged in sequence to define the frame with an opening in one single side; each fixed body includes an installation frame and a plurality of baffles, wherein the installation frame is composed of a top transverse rod and vertical rods fixedly connected to the two sides of the top transverse rod, bending hooks are arranged on the vertical rods at equal intervals, the two ends of the baffles and the bending hooks are matched to be installed on the installation frame, and one end of each support bar is hinged to the middle portion of the baffle on the middle portion of the corresponding fixed body. In order to solve the problem that an existing fixing manner for the roadside packing bag of the remained gateway along the goaf is complex and inconvenientto use, the convenient and efficient fixing device for roadside packing bag of the remained gateway along the goaf is provided.
Owner:山西潞安环保能源开发股份有限公司常村煤矿
Emergency connection equipment for standby part and wiring terminal of network converter
PendingCN113727207AQuickly restore the networkAccelerateCooling/ventilation/heating modificationsSelection arrangementsEmbedded systemConverters
The invention relates to network equipment, in particular to emergency connection equipment for standby parts and wiring terminals of a network converter. The technical problem of the invention is to provide the emergency connection equipment for the standby part and the wiring terminal of the network converter, which can quickly replace a network switch, synchronously plug and unplug a network cable and a power line of the network wiring terminal and has high automation degree. According to the technical scheme, the emergency connection equipment for the standby part and the wiring terminal of the network converter comprises a panel layer, wherein the panel layer is of a structure with openings formed in the two sides, a supporting frame is arranged on one side of the panel layer, and two sets of movable plate doors are arranged on one side of the panel layer. According to the invention, the pushing device is adopted to drive the clamping frame on the wiring device to move, so that the network wiring terminals and the power lines can be synchronously plugged and unplugged, all connected network wiring terminals and power lines can be quickly connected and unplugged at a time, and thereby, the network re-connection speed is improved.
Owner:南京思沙网络科技有限公司
A Blasting Method for Sloping Ore Body Cutting Uphill and Pulling Troughs
The invention discloses an oblique ore body upward incision trough broaching detonation method. During upward incision construction, upward incision is conducted two times; a shallow hole drill jambo is used for utilizing the oblique cut for conducting drilling and blasting tunneling on the accurate mining high upper, the compensation space and the free face of secondary blasting are increased, and the oblique length of the upward incision is reduced; and then a medium-deep hole drill jambo is used for utilizing the cylinder cut to conduct one-time throughout detonation on cutting. By means of the oblique ore body upward incision trough broaching detonation method, the oblique ore body upward incision can form the upward incision through one-time shallow hole drilling and blasting and one-time medium-deep hole drilling and blasting, safety risks in the multi-time shallow hole trough broaching operation process of a traditional method are effectively reduced, the problem that in the oblique ore body trough broaching process, a trolley, an excavator and other devices cannot directly work on net anchoring, rock drilling and scraping operation without bottom rising due to the large ore body gradient is solved, and the purposes of increasing the mining speed, improving the ore quality and reducing the safety risks are achieved.
Owner:GUIZHOU KAILIN GRP CO LTD
Method for stoping mountainside type tailings pond
PendingCN114263460AImprove recovery speedReduce moistureMining devicesSlitting machinesEnvironmental engineeringExcavator
The invention discloses a dry stoping method for a mountainside type tailing pond. The dry stoping method specifically comprises the steps that stoping of the whole tailing pond is completed through exploration of the tailing pond, stoping area division and parameter determination, transportation road laying, layered and zoned stoping in a reverse excavation mode and removal of drainage facilities and a dam body. According to the method, the crawler excavator is used for stoping tailings and loading, the open drain is excavated in the stoping zone for dewatering and drainage, and the dewatering and drainage safety and timeliness can be guaranteed; iron plates are laid on transportation roads in the warehouse according to the tailing strength for vehicle passing; according to the method, the work amount can be directly used as the recovery amount, input facilities and equipment are simple, the recovery speed of the tailings pond is increased, the recovery period is shortened, and the problem that effective working time of traditional dry recovery is short is solved. The air-drying speed of the tailings in the tailings pond is accelerated, so that the recovery work of the tailings in the tailings pond is quickly and efficiently completed on a large scale.
Owner:SHANDONG JINLING MINING CO LTD
A device and method for remediating accidental stepping on the accelerator pedal of an automobile
ActiveCN111873798BGuarantee system processQuick and effective linkage auxiliary brakingFoot actuated initiationsPropulsion unit arrangementsDrive shaftElectrical and Electronics engineering
The invention belongs to the technical field of automobiles, and discloses a device and method for remediating accidental stepping on the accelerator pedal of an automobile. Step on the recovery mechanism, and the wrong step recovery mechanism includes: a moving transmission shaft that can reversely rotate with the accelerator pedal, and a detachable reverse transmission assembly is connected between the moving transmission shaft and the accelerator pedal; When the reverse transmission assembly is driven, the connecting sleeve rotates in the same direction as the moving transmission shaft, and one end of the moving transmission shaft extends into the connecting sleeve and is slidably connected with the connecting sleeve; A fixed transmission shaft at one end, the fixed transmission shaft is rotatably connected with the connecting sleeve, and the fixed transmission shaft is driven in the same direction as the brake pedal; in summary, the same process when accidentally pedaling is realized by using the power storage transmission method Brake to ensure the remedial effect.
Owner:SHENZHEN POLYTECHNIC
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