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34results about How to "Overflow in time" patented technology

Well control project monitoring system

The invention relates to a well control project monitoring system comprising a drill floor adjusting device, a drilling tool is inserted into a borehole through the drill floor adjusting device, a sludge circulation system passes through an inner cavity of the drilling tool, circulates in the annular space of the borehole out of a circulation tank and then is pumped into the inner cavity of the drilling tool through a sludge pump to form a closed loop, an anti-spilling pipe is connected to the upper portion of the borehole, the upper end of the anti-spilling pipe is provided with a wellhead sealer, a blowout preventer is arranged at the lower portion of the anti-spilling pipe, a grout pipe and a grout pump sequentially pass through the position between the wellhead sealer and the blowout preventer and then are connected with a sludge tank, the grout pipe is provided with a grout pipe flow sensor, a guide pipe flow sensor is arranged at the position, at a guide pipe of an outlet of the anti-spilling pipe, of the sludge circulation system, and a vertical pipe flow sensor is arranged at an inlet of the sludge circulation system. The well control project monitoring system is stable in performance, can achieve recording and wireless remote transmission of on-the-spot working information in real time, and provides the basis for integration of the spot and a foundation, information sharing, remote control commanding, accident replaying and investigation treatment.
Owner:PANJIN CHUNYA PETROLEUM TECH

Copper nanowire loaded CoNi nanosheet electrocatalyst as well as preparation method and application thereof

The invention provides a copper nanowire loaded CoNi nanosheet electrocatalyst as well as a preparation method and application thereof, and belongs to the technical field of electrocatalysis. Foamy copper is used as a substrate material, copper hydroxide nanowires are generated through chemical oxidation reaction, then the copper nanowires are generated through electrochemical reduction, then CoNi nanosheets are loaded on the copper nanowires through electrochemical deposition, and the copper nanowire loaded CoNi nanosheet electrocatalyst is obtained. Foamy copper of a porous structure is used as a substrate material, after copper nanowires are generated on the surface of the foamy copper in situ, CoNi nanosheets are loaded, the surface area of the substrate is increased, good conductivity is kept, and meanwhile compared with a noble metal catalyst, Co and Ni transition metal catalysts are low in price, easy to prepare and excellent in performance.
Owner:LONGYAN UNIV +1

Electric power facility protection supervision and control system and use method thereof

The invention discloses an electric power facility protection supervision and control system and a use method thereof, and belongs to the field of power management and control. The invention disclosesan electric power facility protection supervision and control system and a use method thereof. A one-way expansion air bag is arranged at a joint of a cable bus, upon occurrence of an accident, the one-way expansion air bag can be intelligently controlled to expand. Meanwhile, under the action of the non-elastic inhibition ropes which are transversely arranged, the one-way expansion air bag intelligently performs longitudinal expansion along the direction of the longitudinal connection part of the cable. Therefore, in the process of continuous expansion, the two plug-in type joints are disconnected, power-off effect is automatically realized. The situation that accidental dangerous cases continue to spread is prevented, secondary damage is reduced, and safety is improved. Meanwhile, wheninflation continues to be conducted, the one-way expansion air bag can burst, so that the pre-breaking ball point can be scattered outwards along with the non-elastic restraining rope and hit againsta nearby object to be broken, insulating oil can overflow from the interior of the pre-breaking ball point, and the insulativity and the safety after the cable bus is broken are effectively guaranteed.
Owner:肖安南

Preparation process of high-strength anticorrosive coating at corner

The invention discloses a preparation process of a high-strength anticorrosive coating at a corner, and belongs to the field of valve corrosion prevention. The preparation process of the high-strengthanticorrosive coating at the corner is characterized in that nano ceramic particles can be adhered to surfaces of quicksand repairing microspheres through process of adhering, condensing, melting andre-condensing water vapor on the surfaces of the quicksand repairing microspheres, so that the quicksand repairing microspheres can carry the nano ceramic particles to be sealed in the anticorrosivecoating, then a valve is heated, the nano ceramic particles are separated from the quicksand repairing microspheres and flow towards micro-gaps generated by bubbles nearby the corner, the influence ofthe internal gaps of the anticorrosive coating on the strength of the anticorrosive coating is remarkably reduced, the strength of the anticorrosive coating formed at the final corner is effectivelyimproved, the peeling probability of the corner is reduced, meanwhile, when being impacted, the quicksand repairing microspheres are broken, the ceramic adhesive in the quicksand repairing microspheres overflows and extends towards the periphery along the liquid guide fluff, surrounding nano ceramic particles and micro cracks generated by impact are bonded together, and the internal self-repairingeffect is achieved.
Owner:杜文中

Self-fluid-supplementing micro-seismic mask

The invention discloses a self-supplementing micro-vibration mask, belongs to the field of masks, and particularly relates to a self-supplementing micro-vibration mask which is characterized in that aself-supplementing air vibration ball is arranged, and water mist is sprayed to the face coated with the mask after the mask is used for a period of time, so that the water mist is absorbed by a water guide cotton rod and enters the self-supplementing air vibration ball; the gas storage particles in the self-supplementing gas vibration ball make contact with water to generate gas, on one hand, the self-supplementing gas vibration ball is expanded, essence in the self-supplementing gas vibration ball overflows towards the liquid storage layer under extrusion of the gas, the effect of self-supplementing the essence is achieved, and use convenience is improved, and on the other hand, when the gas in the gas storage particles overflows, a certain impact force is generated on a sealed pinball,the position of the pinball is moved, and then the mask presents a micro-vibration effect. Compared with the prior art, the facial mask has the advantages that the absorption speed of the essence bythe face is remarkably increased, the overall duration of applying the facial mask is shortened, the absorption rate of the essence in the facial mask is effectively increased, and the use effect of the facial mask is better.
Owner:李艳秋

Garbage collecting device

The invention relates to the technical field of garbage collection, in particular to a garbage collecting device. According to the specific technical scheme, a garbage collecting device comprises a garbage can and a can door hinged to one side of the garbage can, wherein a plurality of garbage cans which are annularly arranged are arranged in the garbage can, one side of each garbage can is provided with an opening, and a top cover of the garbage can is provided with a throwing opening corresponding to the top of one garbage can; a driving mechanism for driving all the garbage cans to rotate around the centers of bottom plates of the garbage cans and enabling a side opening in each garbage can to correspond to the can door is arranged on the bottom plate of each garbage can, a first push rod is arranged on the bottom plate in each garbage can; first through holes are formed in the side walls of the garbage cans; and the output ends of the first push rods correspond to the first through holes. The problem that in the prior art, garbage in the garbage cans overflows out of the garbage cans and to the outside of the garbage cans and is difficult to clean is solved.
Owner:UNIV FOR SCI & TECH ZHENGZHOU

Pulp crushing and sieving equipment based on back-flushing vortex pulp crushing and reciprocating pressurizing and pulp sieving

The invention provides pulp crushing and sieving equipment based on back-flushing vortex pulp crushing and reciprocating pressurizing and pulp sieving. The pulp crushing and sieving equipment mainly comprises a pulp generation and storage device, a pulp sieving and storage device, a blade disturbance vortex pulp crushing device and a rotary extruding and pulp crushing device, a reciprocating direction-changing driving device composed of a double-layered gear, a driven gear A and a driven gear B, a reciprocating back-flushing pulp crushing device composed of a spoiler A and a spoiler B, and a reciprocating auxiliary pressurizing device composed of a pressing plate and a nut A. The pulp crushing and sieving equipment has the characteristics of reciprocating direction-changing vortex and impact pulp crushing and reciprocating auxiliary pressurizing and pulp sieving. According to the pulp crushing and sieving equipment provided by the invention, the reciprocating direction-changing drivingdevice is used for realizing reciprocating direction-changing rotation of a rotary shaft; the blade disturbance vortex pulp crushing device is used for realizing vortex crushing and decomposition ofcrushed materials; the reciprocating back-flushing pulp crushing device is used for realizing pressure sieving of pulp; and the reciprocating auxiliary pressurizing device is used for realizing reciprocating pressurizing of the pulp in a sieving barrel.
Owner:UNIV OF JINAN

Gas transfer type stamping lower die easy to demold

The invention discloses a gas transfer type stamping lower die easy to demold, and belongs to the field of stamping dies. According to the gas transfer type stamping lower die easy to demold, throughthe arrangement of a gas passing balloon, in the stamping process, a bearing plate moves downwards to generate the extrusion effect on the gas passing balloon under the extrusion effect of a punch, sothat gas in the gas passing balloon is quickly transferred into a gas transfer cavity to be stored; after stamping is finished and the extrusion effect of the punch is lost, the gas passing balloon is rapidly filled with the gas transferred into the gas transfer cavity, and in cooperation with the effect of an inwards-pushing elastic piece, transferring of inert gas into the gas passing balloon is accelerated, so that the speed of jacking the bearing plate and upwards pushing a stamping part is higher; and compared with the prior art, not only is the demolding difficulty reduced, but also theoverall stamping efficiency is improved, meanwhile, under the action of an oil guide trailing ball, the bottom surface of the stamped part can be lubricated, the directly stressed bottom of the stamping part is effectively protected against abrasion with the bearing plate due to large stress, and then the quality of the stamping part is improved.
Owner:肖惠君

Zipper carton capable of being internally sealed twice

The invention discloses a zipper carton capable of being internally sealed twice, and belongs to the field of zipper cartons. The zipper carton capable of being internally sealed twice comprises a carton body. An indentation strip seal is connected to an upper paper board at the upper end of the carton body. Due to the arrangement of a glue bead chain, when secondary use is needed after the indentation strip seal is torn off, an outer pull rope or a bead connecting rope is pulled outwards firstly, glue sealing beads move to the positions below a glue penetration board, and are partially broken under the action of extrusion force, glue flows outwards and gathers on a glue absorbing adhesive layer, at the moment, the upper paper board is pressed downwards, the upper paper board is bonded with an inner secondary strip seal, and the carton is sealed again. Compared with the prior art, the seal at a joint is located inside, so that higher attractiveness is achieved; no adhesive tape is needed, so that the difficulty of recycling is lower; and in the process of second sealing, in cooperation with a lining bundle, it is effectively guaranteed that when the glue bead chain is pulled, the glue sealing beads are broken in time, glue in the glue sealing beads rapidly flows out, and the bonding efficiency is higher.
Owner:佛山市宏威纸箱有限公司

High-precision biopsy puncture device for nephrology department and use method of high-precision biopsy puncture device

InactiveCN113288233AReduce the range of skin deformationHigh precisionSurgical needlesVaccination/ovulation diagnosticsUrologyRenal medicine
The invention discloses a high-precision biopsy puncture device for the nephrology department and a use method of the high-precision biopsy puncture device, and belongs to the field of kidney puncture. According to the high-precision biopsy puncture device for the nephrology department, through the arrangement of a multi-point volume shrinkage ring, before kidney puncture is carried out, under the suction effect, the part, needing to be punctured, of a patient is in close contact with the multi-point volume shrinkage ring, and when a puncture position is stressed by a puncture needle, the multi-point shrinkage ring can remarkably intercept deformation fluctuation caused by skin stress at the puncture position, the skin deformation range is narrowed, offset caused by skin elasticity during puncture of the puncture needle is reduced, accuracy during kidney puncture is remarkably improved, and the success rate of kidney puncture is increased. Meanwhile, in cooperation with the effects of the inner extending ribbons and the puncture assisting stabbing rods, the inner extending ribbons are punctured when gradually getting close to the outer extending stabbing rods, the disinfection antibacterial liquid in the inner extending ribbons overflows to the skin of the punctured position, bacterium breeding caused by sweat generated when the position makes contact with the multi-point shrinkage ring is effectively avoided, then the punctured wound is effectively protected against infection, and potential safety hazards are reduced.
Owner:QINGDAO MUNICIPAL HOSPITAL

Oil-water separation device and oily sludge drying system

The invention relates to an oil-water separation device and an oily sludge drying system. The oil-water separation device comprises a box body, and an oil storage area, a first separation area, a second separation area, a sludge storage hopper, a water level adjusting area and a water storage area which are arranged in the box body, wherein the sludge storage hopper is communicated with the first separation area, and the second separation area is communicated with the water level adjusting area; a separation partition plate is arranged between the first separation area and the second separation area; a first inner partition plate is arranged between the first separation area and the oil storage area; a second inner partition plate is arranged between the second separation area and the water level adjusting area; a water level adjusting weir plate is arranged between the water level adjusting area and the water storage area; the top surface heights of the separating partition, the first inner partition and the water level adjusting weir plate are sequentially increased; the height of the second inner partition plate is larger than that of the water level adjusting weir plate and smaller than or equal to that of the upper plane of the box body. The oil-water separation device is simple in structure, good in oil-water separation effect, high in separation efficiency, convenient to maintain and high in practicability.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

Straight pipe welding system

The invention discloses a straight pipe welding system. The straight pipe welding system comprises a welding gun, a wiggler, an automatic wire feeding machine and a roller wheel frame, wherein the welding gun is fixedly connected with the wiggler and comprises an electric parameter setting unit which is used for setting electric parameters when a motor of the welding gun works; a straight pipe to be welded is arranged on the roller wheel frame, and the roller wheel frame is used for driving the straight pipe to be welded to rotate; the wiggler is used for driving the welding gun to swing along the welding joint between the to-be-welded end of the straight pipe to be welded and a component to be welded; the wiggler comprises a control unit which is used for controlling the swinging period of the wiggler; and the automatic wire feeding machine is used for feeding a solder wire to a welding gun head, and the welding gun is used for welding the welding joint through the welding gun head. The straight pipe welding system provided by the invention can improve the welding efficiency of the straight pipe, reduce air pores, lower the weld penetration probability, improve the uniformity of the welding joint, and guarantee the welding quality.
Owner:SHANGHAI WAIGAOQIAO SHIP BUILDING CO LTD

Offline filtration system for high-precision wind power gear box

The invention discloses an offline filtration system for a high-precision wind power gear box. According to the technical scheme, the offline filtration system for the high-precision wind power gear box comprises a filtration device which is connected with a gear box of a wind driven generator to form a filtration circuit; the filtration device comprises a filtration component and a motor pump component connected with the filtration component; a pressure switch and an oil discharge valve are connected to the filtration component; a bypass relief valve is connected to the motor pump component.The technical problem that the safety problem is likely to be caused on the condition that a filter element is not replaced in time is solved. The system has the advantages that the bypass relief valve connected to the motor pump component can be opened when the pressure reaches 2.8 bar, and therefore safety overflow can be achieved when the oil pressure further rises, and the phenomenon that equipment is damaged is avoided.
Owner:SOLINER NANJING INTELLIGENT TECH CO LTD

Chromium-vanadium co-doped nickel-based hydroxide self-supporting electrode for fully decomposing water and preparation method thereof

The invention discloses a chromium-vanadium co-doped nickel-based hydroxide self-supporting electrode for fully decomposing water and a preparation method thereof. The preparation method comprises thespecific steps of: 1) mixing a certain amount of a nickel source, a chromium source, a vanadium source, an alkali source and polyvinyl alcohol uniformly, adding ultrapure water, and stirring the substances uniformly to obtain a solution A; 2) soaking foamed nickel in the solution A obtained in the step 1), and carrying out hydrothermal reaction at 115-125DEG C; and 3) after the hydrothermal reaction is finished, performing natural cooling to room temperature, taking out the reacted foamed nickel, conducting washing and drying to obtain the chromium-vanadium co-doped nickel-based hydroxide self-supporting electrode for fully decomposing water. The preparation method disclosed by the invention is low in preparation cost, simple in preparation process and easy to control in process, and thechromium-vanadium co-doped nickel-based hydroxide self-supporting electrode for fully decomposing water prepared by the preparation method disclosed by the invention has good full water decompositionperformance under an alkaline condition.
Owner:SHAANXI UNIV OF SCI & TECH

Ferrochrome co-doped nickel-based hydroxide self-supporting electrode for fully hydrolyzing water and preparation method thereof

The invention discloses a ferrochrome co-doped nickel-based hydroxide self-supporting electrode for fully hydrolyzing water and a preparation method thereof. The preparation method comprises the specific steps that: 1) uniformly mixing a certain amount of nickel source, chromium source, iron source, alkali source and dimethylformamide, adding ultrapure water, and uniformly stirring to obtain a solution A; 2) soaking foamed nickel in the solution A obtained in the step 1), and carrying out hydrothermal reaction at 125-135 DEG C; and 3) after the hydrothermal reaction is finished, naturally cooling to room temperature, taking out the reacted foamed nickel, washing and drying to obtain the ferrochrome co-doped nickel-based hydroxide self-supporting electrode for fully hydrolyzing water. The preparation method disclosed by the invention is low in preparation cost, simple in preparation process and easy to control in process, and the chromium-iron co-doped nickel-based hydroxide self-supporting electrode for fully hydrolyzing water prepared by the preparation method disclosed by the invention has good fully hydrolyzing performance under an alkaline condition.
Owner:SHAANXI UNIV OF SCI & TECH

Efficient high-capacity soybean milk machine

The invention discloses an efficient high-capacity soybean milk machine, belongs to the field of food processing equipment, and solves the problem that the crushing efficiency and effects are affecteddue to the fact that the diameter ratio of a filter barrel to a stirring inner cavity is unreasonable. The technical scheme to solve the problem is that the efficient high-capacity soybean milk machine mainly comprises a stirring barrel, a crushing motor and crushing blades, wherein the stirring barrel is provided with a stirring inner cavity, the crushing motor is located at the bottom of the stirring barrel, an output shaft of the crushing motor extends into the stirring inner cavity, the crushing blades are located in the stirring inner cavity and installed on the output shaft of the crushing motor, a filter barrel is arranged in the stirring inner cavity, the bottom end of the filter barrel is connected with the inner bottom surface of the stirring inner cavity, the crushing blades are located in the filter barrel, the rated capacity of the stirring inner cavity is 40 L-50 L, the inner diameter of the filter barrel is D2, the diameter of the rotating range of the crushing blades is D3, and D3 / D2 is equal to 0.2-0.35. The efficient high-capacity soybean milk machine is mainly used for improving the pulverizing efficiency and effects.
Owner:HANGZHOU JIUYANG BEEN IND

One-piece pyrolysis connector and lithium-ion battery containing the connector

The invention discloses an integrated pyrolysis connector and a lithium ion battery containing the connector. The integrated pyrolysis connector includes a connecting plate and a supporting column fixed on one side of the connecting plate at intervals, and the top of the supporting column is fixed to the There are clamping columns, and insertion grooves are formed between adjacent clamping columns; conductive layers are provided on the top surface of the clamping columns and the inner wall of the insertion groove, and the clamping columns are made of pyrolytic materials , the pyrolysis material is mixed with thermosensitive resin and functional additives. The connector of the present invention consists of two parts: thermosensitive resin decomposed by pyrolysis and conductive layer. Among them, the conductive layer can realize the electrical connection with the tabs of the battery core, and the heat-sensitive resin can automatically decompose when the temperature of the battery core is too high, causing the conductive layer on the surface to collapse without producing an electrical connection, which can prevent further heat generation of the battery core. Out of control, greatly improving the safety performance of the battery.
Owner:HEFEI GUOXUAN HIGH TECH POWER ENERGY

Chromium-aluminum co-doped nickel-based hydroxide self-supporting electrode for fully decomposing water and preparation method thereof

InactiveCN112410818ATake advantage of inductionImprove responseElectrodesPyrrolidinonesPhysical chemistry
The invention discloses a chromium-aluminum co-doped nickel-based hydroxide self-supporting electrode for fully decomposing water and a preparation method thereof. The preparation method comprises thespecific steps of: (1) mixing a certain amount of a nickel source, a certain amount of a chromium source, a certain amount of an aluminum source, a certain amount of an alkali source, a certain amount of dimethylformamide and a certain amount of polyvinylpyrrolidone to a uniform state, adding ultra-pure water, and stirring to a uniform state to obtain a solution A; (2) soaking foamed nickel in the solution A obtained in the step (1), and carrying out hydrothermal reaction at 105-115 DEG C; and (3) after the hydrothermal reaction is finished, naturally cooling to room temperature, taking out the reacted foamed nickel, and carrying out washing and drying to obtain the chromium-aluminum co-doped nickel-based hydroxide self-supporting electrode for fully decomposing water. The preparation method disclosed by the invention is low in preparation cost, simple in preparation process and easy to control in process, and the chromium-aluminum co-doped nickel-based hydroxide self-supporting electrode for fully hydrolyzing water prepared by the preparation method disclosed by the invention has good water full hydrolyzing performance under an alkaline condition.
Owner:SHAANXI UNIV OF SCI & TECH

Hardening type high-stability case USB interface

InactiveCN112909670AAlleviate the situation of low elasticity and easy deformationNot easy to fall offCoupling parts mountingDry glueEngineering
The invention discloses a hardening type high-stability case USB interface, and belongs to the field of USB interfaces. The hardening type high-stability case USB interface can form a buffer gradient between the USB interface and the inner wall of a case shell through the arrangement of a plurality of self-hardening glue overflow hemispheres, so that the USB interface is not liable to fall off from the case shell in multiple plugging operations of a plug, meanwhile, when the self-hardening glue overflow hemispheres are subjected to large pulling force, the self-hardening glue overflow hemispheres are instantly stressed and greatly deforms, so that a jacking ball pushes a self-hardening bag to quickly approach the conical angle, the self-hardening bag expands outwards in the longitudinal direction, quick-drying glue is extruded from the inside, the self-hardening glue-overflow hemispheres are broken, the quick-drying glue overflows, a bonding effect is formed, and it is effectively guaranteed that the interface can still keep high stability after accidental pulling force; moreover, the conical angle punctures a top point ball, the self-hardening bag is hardened to form a supporting effect in the self-hardening glue overflow hemispheres, the situation that the self-hardening glue overflow hemispheres are extremely prone to deformation due to low elasticity and stress after the quick-drying glue overflows is effectively relieved, and the stability is further improved.
Owner:庄永报

Efficient and safe adipic acid synthesis method

The invention discloses an efficient and safe adipic acid synthesis method. The method comprises the following steps:raw materials containing a catalyst are fully mixed in a microchannel reactor; and the mixed material enters a falling film reactor, is heated to a reaction temperature, forms a liquid film after flow guiding, realizes adipic acid synthesis in the film, and the generated gas overflows from the surface of the film in time and then enters a tail gas post-treatment device through a gas phase pipeline. The micro-channel reactor is adopted to realize full mixing of raw materials at a lower temperature, the mixing process is liquid-liquid mixing (no gas is generated), the mixing effect is greatly superior to that of a kettle type and a tube type, the subsequent synthesis reaction is facilitated, the adipic acid synthesis reaction is completed in the falling film reactor, back mixing is avoided in the reaction process, and the specific surface area of a liquid film is large; and gas generated by the reaction overflows from the surface of the film in time, so that the reaction can be carried out forwards, the reaction yield and selectivity are high, continuous production of adipic acid is realized, the retention time is short, the reaction liquid holdup is low, the mixing effect is good, and the safety coefficient is greatly improved.
Owner:NINGXIA RUITAI TECH +1

An oil-water separation device and oily sludge drying system

The present disclosure relates to an oil-water separation device and an oily sludge drying system. The oil-water separation device includes: a box body, an oil storage area arranged in the box body, a first separation area, a second separation area, a mud storage bucket, a water level adjustment area and a water storage area; the mud storage bucket is communicated with the first separation area , the second separation area is communicated with the water level adjustment area; a separation baffle is arranged between the first separation area and the second separation area; a first inner baffle is arranged between the first separation area and the oil storage area; the second separation area A second inner baffle is arranged between the water level adjustment area, and a water level adjustment weir is arranged between the water level adjustment area and the water storage area; the top surface heights of the separation baffle, the first inner baffle and the water level adjustment weir increase in sequence. Large; the height of the second inner partition is greater than the height of the water level adjusting weir plate and less than or equal to the height of the upper plane of the box. The oil-water separation device has the advantages of simple structure, good oil-water separation effect, high separation efficiency, convenient maintenance and strong practicability.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

Environment-friendly cast-in-place pile construction device for constructional engineering

The invention relates to the field of constructional engineering, in particular to an environment-friendly cast-in-place pile construction device for constructional engineering. The technical problems that the construction steps of a cast-in-place pile divided into an inner layer and an outer layer are tedious, and the bearing capacity and the service life of the cast-in-place pile are affected if gravel materials forming an outer column layer of the cast-in-place pile are not evenly dispersed are solved. The environment-friendly cast-in-place pile construction device for constructional engineering comprises a filling unit, a vibration distribution unit and the like. And the upper side of the filling unit is connected with a vibration distribution unit for uniformly distributing crushed stone materials. The isolation type pouring component is arranged, the inner column layer is poured out in a layer-by-layer pouring mode, the outer layer is obtained through overflowing, meanwhile, gravel materials are evenly scattered in slurry of the outer layer through the gravel material dispersing component to form the outer column layer, then the heights of the inner column layer and the outer column layer are sequentially increased, and the inner column layer and the outer column layer are evenly poured out. And rising power is converted into rotating force for uniformly scattering materials, so that the gravel materials are dispersed in slurry of an outer column layer in time.
Owner:MINGDA MARINE ENG CO LTD

Anti-poisoning blast furnace gas hydrolysis catalyst with high specific surface area and preparation method thereof

The invention discloses an anti-poisoning blast furnace gas hydrolysis catalyst with high specific surface area and a preparation method thereof, the catalyst takes gamma alumina as a carrier, takes an oxide of alkali metal as an active component, takes an oxide of rare earth metal as an auxiliary agent, and a plurality of pore-forming agents are added in the preparation process; the preparation method comprises the following steps: dissolving a precursor of aluminum, a precursor of alkali, a precursor of rare earth metal and a pore-enlarging agent in deionized water, uniformly stirring, slowly adding ammonia water in batches in the ultrasonic stirring process to adjust the pH until the precipitation is complete, standing, heating and stirring, drying, grinding and calcining to obtain the COS hydrolysis catalyst. The COS hydrolysis catalyst prepared by adding the pore-enlarging agent, the rare earth metal and the alkali metal has the advantages of higher specific surface area and more macroporous structures, higher COS hydrolysis conversion rate and H2S yield can be realized at 75 DEG C, and the service life is long; meanwhile, the preparation method is simple, convenient and easy to operate.
Owner:SOUTHEAST UNIV

Continuous mine acid wastewater treatment system and treatment method

The invention discloses a continuous mine acid wastewater treatment system and a continuous mine acid wastewater treatment method. The continuous mine acid wastewater treatment system comprises two groups of treatment tanks, buffer tanks and drainage channels, wherein two groups of the treatment tanks are the same and are connected in parallel; the buffer tanks are connected at the outlets of the treatment tanks by pipelines; the drainage channels are arranged at the outlets of the buffer tanks; the treatment tanks comprise a first-level primary deposition tank, a second-level primary deposition tank, a first-level filter tank, a second-level filter tank, a third-level filter tank and a secondary deposition tank, wherein the first-level primary deposition tank, the second-level primary deposition tank, the first-level filter tank, the second-level filter tank and the third-level filter tank are connected in sequence and gradually reduced in height; and a medicine adding device is arranged on each of the first-level filter tank, the second-level filter tank and the third-level filter tank. According to the continuous mine acid wastewater treatment system and the continuous mine acid wastewater treatment method disclosed by the invention, the mine acid wastewater is gradually treated by adopting an overflowing way, so that liquid supernatant can be timely overflowed while the deposition is ensured during the whole treatment process, and therefore, the treatment time is shortened and the efficiency is improved. Moreover, the gradual overflowing treatment way is adopted, so that the energy consumption and the investment cost are low and the treatment process is easy to control. Moreover, the wastewater is neutralized by calcium carbonate without secondary pollution.
Owner:GUIZHOU NORMAL UNIVERSITY

The Method of Well Control Engineering Detection Using Well Control Engineering Monitoring System

The invention relates to a well control project monitoring system comprising a drill floor adjusting device, a drilling tool is inserted into a borehole through the drill floor adjusting device, a sludge circulation system passes through an inner cavity of the drilling tool, circulates in the annular space of the borehole out of a circulation tank and then is pumped into the inner cavity of the drilling tool through a sludge pump to form a closed loop, an anti-spilling pipe is connected to the upper portion of the borehole, the upper end of the anti-spilling pipe is provided with a wellhead sealer, a blowout preventer is arranged at the lower portion of the anti-spilling pipe, a grout pipe and a grout pump sequentially pass through the position between the wellhead sealer and the blowout preventer and then are connected with a sludge tank, the grout pipe is provided with a grout pipe flow sensor, a guide pipe flow sensor is arranged at the position, at a guide pipe of an outlet of the anti-spilling pipe, of the sludge circulation system, and a vertical pipe flow sensor is arranged at an inlet of the sludge circulation system. The well control project monitoring system is stable in performance, can achieve recording and wireless remote transmission of on-the-spot working information in real time, and provides the basis for integration of the spot and a foundation, information sharing, remote control commanding, accident replaying and investigation treatment.
Owner:PANJIN CHUNYA PETROLEUM TECH
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