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72results about How to "Increase screening rate" patented technology

Crop seed screening device

The invention discloses a crop seed screening device. The crop seed screening device comprises a box. The box is erected above a screening pond. A hopper is arranged on the upper portion of the box. One side of the box is provided with a connecting pipe and a lower outlet. The other side of the box is provided with a slag discharging port. An upper screening plate, an upper guiding plate, a lower screening plate and a lower guiding plate are arranged in the box from top to bottom. A baffle is arranged between the lower screening plate and the bottom surface of the box. An upper vibrating motor and a lower vibrating motor are installed on the upper screening plate and the lower screening plate respectively. Both the upper screening plate and the lower screening plate are arranged obliquely. The upper screening plate and the lower screening plate are each provided with a plurality of screening holes. According to the crop seed screening device, through the arrangement of the box and the screening pond, seeds in unqualified sizes are separated in the box by means of a vibrating screen, and then imperfect seeds and husks are separated from intact seeds through the screening pond; the structure is simple, using is convenient, and the seed separation rate is greatly increased; in this way, the screening speed is increased, and the planting success rate of screened seeds is increased.
Owner:CHENGDU JUZHIHUI TECH CO LTD

Seed screening device for agricultural seed breeding

The invention relates to the technical field of agricultural machinery and discloses a seed screening device for agricultural seed breeding. The seed screening device comprises a supporting frame, a driving motor is fixedly mounted on the left side wall of the supporting frame, a driving shaft extending into the supporting frame is coaxially fixedly mounted on an output shaft of the driving motor,a transmission pin II which slidably penetrates an elongated hole II is eccentrically and fixedly mounted on the front face of a worm gear, the lower half portion of a transmission swing rod is provided with an elongated hole I, and a transmission pin I which slidably penetrates an elongated hole I is fixedly mounted at the left end of a screen plate. The transmission swing rod swings to drive the screen plate to reciprocate transversely, and accordingly seed screening effects of the screen plate are improved; a driven shaft rotates to drive an elliptic cam to rotate, on the one hand, the elliptic cam drives a brush to rotationally sweep the screen plate to promote seed dispersion, and on the other hand, two abutting plates are driven to move face to face and back to back alternately, sothat seed dispersion is greatly improved, and seed screening rate of the screen plate is remarkably increased.
Owner:CHANGSHA FENGYING MACHINERY TECH CO LTD

Information retrieval method based on interrogative extension

The invention relates to an information retrieval method, in particular to a software information retrieval method based on interrogative extension. The information retrieval method includes the statistical step, the analytical step and the retrieval step, wherein in the statistical step, existing question answers of a question and answer website are classified, the features of answer pairs of various types are extracted, and discrimination features between the answer pairs of various types are acquired through machine learning; in the analytical step, retrieval questions are processed through a natural language to acquire interrogatives, and retrieval vectors and the discrimination features are combined to form new retrieval vectors; in the retrieval step, retrieval is conducted in a software knowledge base through the retrieval vectors. The method has the following advantages that software information retrieval accuracy can be improved through the relation between the interrogatives and the answers in the questions and the answers; retrieval results can be filtered and reordered through the relation between the interrogatives and the answers in the questions and the answers, and therefore the screening speed of a user is increased.
Owner:PEKING UNIV

High-efficiency sand sieving device for municipal construction

The invention discloses a high-efficiency sand sieving device for municipal construction. The high-efficiency sand sieving device for municipal construction comprises a sieving box. The top of the sieving box is provided with a top plate. A driving motor is arranged on the top plate. An output shaft of the driving motor is coaxially and fixedly provided with a driving belt pulley. A second smashing rotary roller is coaxially and fixedly provided with a fourth driven belt pulley and a third driven belt pulley. A first driving bet is wound around the third driven belt pulley and the driving beltpulley. The right end of a concentric-square-shaped frame is horizontally and fixedly provided with a right guide slide rod which is slidably connected with the right sidewall of the sieving box. Sand entering the sieving box through a feed hopper is scattered by a first smashing rotary roller and the second smashing rotary roller in the rotating process, so that caking sand blocks in the sand are broken up and scattered. Rotary blades rotate to promote scattering of the sand. Meanwhile, wind generated by rotating of the rotary blades promotes flowing of air in the sieving box to play a rolein drying the sand. The fluidity of the sand is improved, and the subsequent sieving effect is improved accordingly.
Owner:王书愚

Sand screening device for construction

The invention discloses a sand screening device for construction. The sand screening device comprises a bottom plate and a screening box. A left vertical plate and a right vertical plate are vertically and fixedly mounted on the bottom plate. A top plate is horizontally and fixedly mounted on the left vertical plate and the right vertical plate. Supporting legs are vertically and fixedly mounted at the bottom of the screening box. A feeding pipe is mounted on the top plate and communicates with the interior of the screening box through a flexible connecting pipe. Damping springs are fixedly connected between the screening box and the left side wall of the right vertical plate. The sand screening device has the obvious advantages that the screening effect on sand is good, and the screeningspeed is high; the screening box is driven through a second connecting rod and a first connecting rod to do left-and-right reciprocating motion under the elastic acting force of the damping springs,shaking of the sand in the screening box is promoted, and the sand screening rate is increased; and through rotation of an oval cam, a first screening plate and a second screening plate are driven tovibrate up and down under the elastic action of second limiting springs, and the screening speed of the first screening plate and a second screening plate on the sand is further increased.
Owner:重庆峰创科技有限公司

Corn seed screening device for agricultural breeding

The invention discloses a corn seed screening device for agricultural breeding. The corn seed screening device comprises a bottom plate. A left vertical plate and a right vertical plate are verticallyare fixedly installed on the bottom plate; a driven belt wheel is arranged and fixedly installed on a driven shaft in a sleeving mode; a driving belt wheel and the driven belt wheel are sleeved witha transmission belt; a screening basket movably penetrates between the left vertical plate and the right vertical plate in a mode of being inclined towards the lower-right portion; the upper end of aconnecting rod is hinged to the lower-left bottom face of the screening basket; and a first collecting groove is fixedly formed in the lower portion of the screening basket. A hot air machine conductshot air drying on corn seeds in a housing through an air supply pipe and an air collection cover; a driving shaft drives a spiral blade to turn over the corn seeds rotationally, so that hot air and the corn seeds can make full contact, and the drying effect is greatly improved; meanwhile, the corn seeds conveyed on a conveying belt are subjected to secondary air-blowing drying of fan blades and can be spread on the conveying belt, and thus the drying effect is better; and vibration of the screening basket to the corn seeds is facilitated through swinging of the screening basket, and thus thescreening rate is increased.
Owner:雷晓琴

Seasoning production device

The invention discloses a seasoning production device, and relates to the technical field of seasoning production. The invention aims at screening and drying the raw materials required for seasoning production. The seasoning production device specially comprises a shell, and four springs are welded to the outer wall of the bottom of the shell. A screening box is welded to the outer walls of the tops of the four springs. A draught fan is fixed to the outer wall of the top of the screening box through bolts, and the output end of the draught fan is connected to the top inner wall of the screening box. A heating column is fixed to the inner wall of the top of the screening box through bolts. A vibration motor is fixed to the outer wall of one side of the screening box through bolts. A first collecting box, a second collecting box and a discharging plate are arranged on the outer wall of one side of the screening box, a third collecting box is arranged on the outer wall of the other side of the screening box, and a V-shaped screen, a first screen and a second screen are fixed to the inner wall of the screening box through bolts from top to bottom. Seasoning can be screened through thefirst screen and the second screen.
Owner:湖南刘先生食品有限公司

Waste coal slag smashing device for power plant

The invention discloses a waste coal slag smashing device for a power plant. The waste coal slag smashing device comprises an outer shell. Two hydraulic cylinders are symmetrically and fixedly installed on the outer side wall of the upper portion of the outer shell; piston rods of the hydraulic cylinders penetrate through the side walls of the outer shell, extrusion plates are fixedly installed onthe piston rods of the hydraulic cylinders, and smashing teeth are arranged on the extrusion plates; output shafts of first motors penetrate through the side walls of the outer shell, and a turning-over plate is fixedly installed on the output shafts of the first motors through pin shafts and bearings; two second motors are fixedly installed on the outer side wall of the middle of the outer shell, output shafts of the second motors are in transmission connection with roller shafts through couplers, smashing rollers are arranged on the roller shafts, and hemispherical protruding blocks are arranged on the smashing rollers; and a filter net plate is erected on erecting plates. The smashing efficiency is high, the smashing precision of waste coal slag is improved, the fine waste coal slag meeting the requirement can be screened out, thus the screening speed is high, and the screening effect is good.
Owner:高锦芳

Vibrating screen sand tray

The invention discloses a vibrating screen sand tray, and belongs to the technical field of mining machinery. The vibrating screen sand tray comprises a vibrating frame, a vibrating device and a transmission device, wherein a screen net is mounted in the vibrating frame; side plates are arranged on the two sides of the vibrating frame; the vibrating device is arranged on the lower side of the vibrating frame, and the vibrating device comprises a transmission rod, a cam, and a row of ejector rods; a cross-shaped through hole is formed in the cam, the transmission rod comprises a cross-shaped rod and round rods, the round rods are arranged at the two ends of the cross-shaped rod correspondingly, and the transmission rod is mounted on the two side plates through the round rods; the cam is matched with the cross-shaped rod through the cross-shaped through hole; the two ends of a limiting plate are welded on the two side plates, and the row of ejector rods are arranged on the limiting plate; and a convex cap and an ejector plate are welded at the two ends of each ejector rod correspondingly, each convex cap is matched with each cam, and springs are arranged between the ejector plates and the screen net in a matched mode. According to the vibrating screen sand tray, the cam devices are used for conducting intensive vibration on the screen net, so that the vibration frequency of a vibrating screen is improved, and the vibration efficiency of the vibration screen is further increased.
Owner:合肥星研科技有限公司

Construction sand screening machine facilitating automatic discharging

ActiveCN107282414AEasy for automatic dischargeIncrease screening rateSievingScreeningEngineeringLarge particle
The invention discloses a construction sand screening machine facilitating automatic discharging and relates to the technical field of sand screening machines. The construction sand screening machine comprises an outer frame. A first motor is fixedly connected with the bottom of the inner wall of the outer frame. A first belt wheel is fixedly connected with one end of an output shaft of the first motor. A second belt wheel is in transmission connection with the surface of the first belt wheel through a belt. The axis of the second belt wheel is fixedly connected with the bottom of the inner wall of the outer frame through a rotary base. A moving device is fixedly connected with the surface of the second belt wheel. A transverse plate is rotationally connected with the right side of the top of the moving device. The left side of the transverse plate is rotationally connected with the left side of the inner wall of the outer frame. According to the construction sand screening machine facilitating automatic discharging, the purpose of increasing the screening speed is achieved, a screen is driven to vibrate, thus the screening speed is higher, the working efficiency is improved, time waste is reduced, sand does not need to be taken out manually, worker burden is relieved, application by people is facilitated, discharging through a discharging port is facilitated, and large-particles sand can be taken out through a box door conveniently.
Owner:徐州云润新材料有限公司

Rice sieving device

The invention relates to the technical field of sieving, and particularly to a rice sieving device which is characterized in that an upper cover is connected to the upper side of a box body through a clamping mechanism; a first filter plate and a second filter plate are arranged in the box body; a plurality of thread rods are in threaded connection with the box body on the outer side of each of the first filter plate and the second filter plate; the first filter plate and the second filter plate divide the box body into an impurity removing chamber, a filtering chamber and a dust collecting chamber from top to bottom; a discharge opening is formed in one side of the lower part of the filtering chamber and communicated with the filtering chamber; a valve is arranged at the discharge opening; a damping pillar is mounted at each of the four corners at the lower end of the box body; a same base is mounted at the lower ends of the damping pillars; a double-end motor is mounted at the middle position of the upper end of the base through a limiting mechanism; the output shafts of the two ends of the double-end motor are connected to the lower end of the box body through a transmission mechanism; a dust outlet is formed in the lower end of the dust collecting chamber. According to the rice sieving device, rice is automatically sieved, the rice sieving rate is increased, the working efficiency is improved, and the service life of the device is improved.
Owner:SHITAI COUNTY XINTIAN OILS CO LTD

Secondary sand screening device for construction

InactiveCN108380483AIncrease screening rateRealize the scraping effectSievingScreeningEngineering
The invention discloses a secondary sand screening device for construction. The secondary sand screening device comprises a bottom plate, wherein a left vertical plate and a right vertical plate are vertically and fixedly installed on the bottom plate, a screening box is fixedly installed on the bottom plate, and a plurality of screens are circularly and fixedly installed on the surface of a worm;vertical limiting plates are vertically and fixedly installed on the ends of the first sieving screen and the second sieving screen respectively, a scraping plate of which the lower end is abutted with the upper surface of the second sieving screen is rotatably arranged on the end of an extension plate, and a limiting spring is connected between the scraping plate and the extension plate. According to the secondary sand screening device, sands are rotated to scatter by rotating the screens, so that the sands are promoted to disperse, and the subsequent screening speed is increased; the sand screening speed is increased through the left-and-right reciprocating sliding of the first sieving screen and the second sieving screen, the second sieving screen does reciprocating sliding and moves relative to the scraping plate, the scraping plate swings under the elastic action of the limiting spring so as to scrape sands on the second sieving screen and promote sands to pass through the secondsieving screen, and additionally, the second sieving screen is prevented from being blocked.
Owner:王岩霞

Fly ash ceramsite processing and forming process

InactiveCN113333069AAvoid Low Quality SituationsAvoid the rate impact of sievingSievingGas current separationProcess engineeringFly ash
The invention provides a fly ash ceramsite processing and forming process. The fly ash ceramsite processing and forming process adopts the following equipment for processing, the equipment comprises a prescreening device and a screening device, the lower ends of the pre-screening device and the screening device are connected with the existing ground, and the pre-screening device is located on the left side of the screening device. According to the fly ash ceramsite processing and forming process, fly ash ceramsite needing to be crushed and screened can be preliminarily screened through the pre-screening device, the ceramsite with the very small particle size can be screened out, the situation that the ceramsite with the very small particle size is crushed into powder through a crushing unit can be avoided, and therefore the situation that the ceramsite with the particle size or the quality not meeting the requirement is mixed in the ceramsite screened out subsequently, and consequently the quality of the screened fly ash is low can be avoided.
Owner:武汉汉祥亿源建材有限公司

Preparation device of nutrient soil for rice planting

The invention discloses a preparation device of nutrient soil for rice planting. The device comprises a screening box, wherein a hopper is communicated with the top of the screening box, a first motoris installed on the top of the screening box, an output shaft of the first motor is inserted into the interior of the screening box and connected with a rotating shaft, a crushing rod is fixed at theside edge of the rotating shaft, a first spiral shaft is connected with the bottom end of the rotating shaft, a funnel and a sieve plate are mounted inside the screening box, the first spiral shaft is located in the funnel, the sieve plate is located below the funnel and arranged obliquely, an exciter is mounted at the bottom of the sieve plate, a sliding groove is formed in the bottom in the screening box, a receiving box is arranged in the screening box, rollers are mounted at the bottom of the receiving box and mounted in the sliding groove in a rolling manner, and a feeding passage is mounted at the side edge of screening box. The device is not easy to block, raw materials are crushed efficiently and circularly, automation of processing is achieved, and the crushing rate is very high.
Owner:贵州贵米农业科技有限公司

Nano-screen and its manufacturing method

A nano-sieve for filtering the nanoparticles is composed of an aluminium oxide membrane with regularly arranged nano-hole mesh structure and a membrane holder with peripheral side wall.
Owner:HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1

Modified PBAT granulation device and preparation method of PBAT foaming material

The invention provides a modified PBAT granulation device and a preparation method of a PBAT foaming material, and relates to the technical field of granulation machinery. The device comprises a cooling plate rail. A sieve plate is mounted at the bottom of the right end of the cooling plate rail; a drying device is mounted on a side bracket, a grain cutting device is mounted at the right end of the side bracket, and a reciprocating device is mounted at the outer side of the side bracket; and the mobility of long-strip-shaped raw materials is improved, the situation that the long-strip-shaped raw materials are accumulated in the cooling plate rail, and consequently the conveying passing ability of the long-strip-shaped raw materials is affected is avoided, the grain cutting smoothness and the grain cutting efficiency of the long-strip-shaped raw materials are improved through the grain cutting device, the situation that the raw materials adhere to blades or the front end face of a guide base during grain cutting is avoided through the drying device, the raw materials obtained after grain cutting can be dried, the drying degree of the stored grain cutting materials is improved, the reciprocating device is matched with the sieve plate, prepared raw material grains can be subjected to batch standard screening, and the screening speed is increased, so that the problem that the sieve plate is blocked due to the fact that the prepared raw materials are excessively stacked on the sieve plate is solved.
Owner:JIANGSU BEST RIEL PACKAGING MATERIALS CO LTD

Screening equipment for controlling powder coating particles

ActiveCN112108237AIncrease screening rateGuaranteed Screening RateSievingScreeningMetallurgyDust control
The invention discloses screening equipment for controlling powder coating particles, and belongs to the field of powder coating manufacturing. The screening equipment is characterized in that a firstcavity is formed in a box body, a screening mechanism for screening a powder coatings is arranged in the first cavity, an impurity removing mechanism for removing the fine-particle powder coating isarranged on the discharging side of the screening mechanism, and the impurity removal mechanism is connected with a dust removal mechanism. According to the screening equipment for controlling the powder coating particles, multi-stage screening and grinding refining can be conducted on the coating, the situation of repeated refining and screening is reduced, the screening speed is increased, different speeds of rotation are set for a screening barrel, two-stage screening is conducted on the screening barrel with two layers inside during rapid rotation, and the screening speed and the screeningquality both can be guaranteed; and the coating is blown by an air pump and is rolled up and suspended by sweeping pieces, so that the coating can pass through the screening barrel and a screen morequickly, and it is guaranteed that the coating has a better effect in the using process.
Owner:HUNAN LIANXIN SCI & TECH CO LTD

Processor and processing method for agricultural chemical fertilizer hardened with damp

The invention relates to the technical field of agricultural chemical fertilizer hardened with damp, in particular to a processor for agricultural chemical fertilizer hardened with damp. The processorcomprises a box. A feeding hopper penetrates through the top of the box. A smashing assembly is arranged at the portion, below the feeding hopper, of the box. A screening assembly is arranged at theportion, below the smashing assembly, of the box. The screening assembly is connected with the screening assembly through a transmission assembly. A dehumidification assembly is arranged at the portion, below the screening assembly, of the box. The dehumidification assembly is in transmission connection with the smashing assembly through a drive assembly. Agricultural chemical fertilizer hardenedwith damp is smashed through the smashing assembly, then, the fertilizer enters the screening assembly for secondary screening processing, unsmashed or large-particle fertilizer is screened out, the transmission assembly is arranged for supplying transmission power to the screening assembly, the screening effect of the screening assembly is improved, the dehumidification assembly is used for performing dehydration and dehumidification on the screened agricultural chemical fertilizer, and the agricultural chemical fertilizer hardened with damp is recycled.
Owner:周鹏

Anti-crushing grain screening device with duplex roller

The invention discloses an anti-crushing grain screening device with a duplex roller, and relates to the technical field of grain screening machines. The anti-crushing grain screening device comprisesa duplex roller sieve which is driven to rotate through a first motor. The duplex roller sieve comprises a first sieving barrel and a second sieving barrel. The second sieving barrel is located in the first sieving barrel, and the axes of the second sieving barrel and the first sieving barrel are the same. One end of a receiving barrel communicates with one end of the second sieving barrel. A screw augur is located in a closed space formed by the receiving barrel and the second sieving barrel. The screw augur is driven to rotate through a second motor. The duplex roller sieve, the screw augur, a grain storing trough, a first sundry groove, a second sundry groove, the first motor and the second motor are fixed on a fixing frame. A winnowing fan is fixed to the position, on one side of thegrain storing trough, of the fixing frame. According to the anti-crushing grain screening device with the duplex roller, by using the duplex roller sieve and the screw augur, the screening efficiencyis improved, and screening is clean; and through screening of the roller sieve and installing of a brush on the side surface of a spiral blade, sieving holes are cleaned effectively while crushing ofgrains is avoided.
Owner:安徽省正宇粮机科技股份有限公司

Shot blasting machine capable of cleaning and recycling shots

The invention relates to the technical field of shot blasting machines, and discloses a shot blasting machine capable of cleaning and recycling shots. The shot blasting machine comprises a shell, a positioning frame is rotatably connected to the middle of an inner cavity of the shell, positioning discs are fixedly connected to a left wall and a right wall of an inner cavity of the positioning frame, ratchet plates are slidably connected to the left side and the right side of an inner cavity of the shell, ratchet columns are slidably connected to the lower portions of the ratchet plates in theinner cavity of the shell, limiting sleeves are fixedly connected to one ends, close to the positioning frame, of the ratchet columns, and curved grooves are formed in inner cavities of the limiting sleeves on the surfaces of the left end and the right end of the positioning frame. According to the shot blasting machine capable of cleaning and recycling the shots, a guide rod deflects in a reciprocating mode through up-down movement of a movable piece, and the ratchet plates drive the limiting sleeves to enable a workpiece in the positioning frame to continuously rotate so as to continuously change a casting surface, the processing quality and the machining rate of the surface of the workpiece are effectively improved, and it is effectively guaranteed that the shots can be recycled in a neat state.
Owner:胡继定

Hammer crusher for crushing of alcohol raw material

The invention specifically relates to a hammer crusher for crushing of an alcohol raw material, belonging to the field of alcohol production equipment. The hammer crusher comprises a body, a colliding device, a hammering device and a screening device, wherein the colliding device is arranged on the upper part of the body while the hammering device is arranged on the lower part of the body; the screening device comprises a sieve plate, a supporting spring, a cam group and a screening motor; the colliding device comprises a pair of upper back-impacting plates, a pair of lower back-impacting plates, a rotation shaft and a damper; and the hammering device comprises a center shaft, a rotor disc, a support bar, a hammerhead, a large belt wheel and a hammering motor. According to the invention, a vibrating device is arranged at the lower end of the sieve plate, so the sieve plate is prevented from blockage during crushing of wet alcohol raw materials and screening efficiency is improved, so the hammer crusher is protected; and the hammer crusher can realize automatic cleaning and is convenient to use and good in practicality.
Owner:ANHUI ANTE FOOD

Waste electronic circuit board crushing and recycling device convenient to clean

The invention discloses a waste electronic circuit board crushing and recycling device convenient to clean. The waste electronic circuit board crushing and recycling device comprises a crushing tank body and crushing rollers. Two push rods are held by two hands to lift up the whole crushing tank body, the whole crushing tank body is supported by a support rod to work stably, a pneumatic hydraulic cylinder and two motors are started, waste electronic circuit boards are put into the crushing tank body from a feeding box and fall onto the surface of a first crushing plate on a first pressure-bearing block, the crushed electronic circuit boards and the uncrushed electronic circuit boards are taken out by opening sealing doors respectively, and the uncrushed electronic circuit boards are put into the feeding box again for crushing. By means of the waste electronic circuit board crushing and recycling device convenient to clean, the waste electronic circuit boards which are not crushed completely can be screened conveniently, secondary smashing is convenient, and therefore the smashing efficiency is improved, and moving is convenient; and a fan below a second pressure-bearing block can dissipate heat of equipment and can also blow impurities in the crushing tank body to the lower portion after operation, an inclined block is arranged on the right side of the crushing tank body, the waste electronic circuit boards can be guided to enter the crushing rollers, and the crushing efficiency is improved.
Owner:湖北至宝科技有限公司

Intelligent screening device for fertilizers

The invention belongs to the technical field of fertilizer processing, and particularly relates to an intelligent screening device for fertilizers. The intelligent screening device comprises a crushing cylinder and a screening cylinder; the crushing cylinder is fixedly connected to the top end of the screening cylinder through a cushioning supporting assembly; an inner cavity of the crushing cylinder is communicated with an inner cavity of the screening cylinder through a blanking pipe; the end face of the top of the crushing cylinder is fixedly connected with a discharging hopper; the inner cavity of the crushing cylinder is provided with a crushing assembly; the bottom of the crushing cylinder is provided with a power output assembly; the power output assembly is connected with the crushing assembly through a transmission assembly; a mounting cavity is arranged in the screening cylinder; and a motor II is fixedly mounted in the mounting cavity. Through cooperation of the motor II, a rotating shaft II, a semi-ring gear, a straight gear, a connecting shaft and a torsional spring, a filter plate I repeatedly rotates by a small angle to achieve low-frequency shaking, the fertilizer screening speed is increased, and the situation that the fertilizer is accumulated on the first filter plate, blockage is caused, and then the screening effect is affected is avoided.
Owner:江苏百益德农业科技有限公司

Submerged arc refining slag for square billet LF refining and production process and equipment thereof

ActiveCN113373279AWell mixedFull suppressionSievingScreeningRefining (metallurgy)Slag
The invention relates to the technical field of metallurgy, in particular to submerged arc refining slag for square billet LF (ladle furnace) refining. The submerged arc refining slag comprises the following raw materials in percentage by weight: 40 to 65 percent of CaCO3, 0 to 20 percent of MgO, 5 to 10 percent of SiO2, 0 to 20 percent of BaCO3, 0 to 10 percent of Na2CO3, 0 to 15 percent of SiC and 0 to 15 percent of CaF2. The method is mainly used for submerged arc of square billets in the LF refining process; carbonates (CaCO3, BaCO3, Na2CO3, MgCO3) and the like are used as main raw materials; the carbonates are decomposed due to high temperature after entering molten steel; a large number of CO2 bubbles are generated; meanwhile, brought-in SiC, C, CaC2 and the like react with CO2 to generate CO; a large number of bubbles are obtained; and the purpose of submerged arc is achieved.
Owner:江苏润美新材料有限公司

Mobile multistage tea screening machine

The invention discloses a mobile multistage tea screening machine. The mobile multistage tea screening machine comprises a screening box, a fixed tabletop, table legs, a dust sucker and a hydraulic device; the table legs are mounted at the lower end of the fixed tabletop; cross bars are mounted between the table legs; universal rollers are mounted at the bottom ends of the table legs; parking andbraking devices are mounted on the universal rollers; the screening box is positioned on the fixed tabletop; a control switch is arranged on the fixed tabletop; a fixed plate is mounted on one side ofthe screening box; a dust sucker is mounted on the fixed plate; the hydraulic device is mounted at the bottom end of the fixed tabletop; a feed port and a dust sucking cover are arranged at the upperend of the screening box; the feed port is positioned on one side of the dust sucking cover; the upper end of the feed port is connected with a cover plate through a second rotating shaft; the dust sucking cover is connected with the dust sucker through a dust sucking pipe; and first rotating shafts are mounted on two sides of the screening box. Because of the universal rollers at the lower end of the table legs, people are convenient to move the screening machine without needing reciprocating carrying.
Owner:霍山县品仙斋贸易有限公司

Relay test method based on virtual instrument

The invention discloses a relay test method based on a virtual instrument. A DC power supply is applied to supply power to a relay. Existing high-speed data acquisition equipment is applied to perform data acquisition, and logic control is performed through autonomous programming. According to the test method, operation voltage and time and return voltage and time of the relay can be detected, and detection speed is high, the degree of automation is high and the relay can be repeatedly tested so that the test method is suitable for receiving inspection and material selection, great in application prospect and worthy of popularization.
Owner:NANJING GUODIAN NANZI POWER GRID AUTOMATION CO LTD

Electromagnetic vibrating feeder

The invention relates to the field of mechanical vibration and particularly relates to an electromagnetic vibrating feeder. The electromagnetic vibrating feeder comprises an electromagnetic vibrator (1), an electromagnetic vibrator base (2), a feeder bracket (3), a feeding hopper (4), a sieve plate (5), a vibration adsorber (6) and a feeding groove (7). By improving the electromagnetic vibrating feeder and additionally mounting the sieve plate (5) and the feeding hopper (4), purposes of separating materials and performing vibrating feeding are achieved. By improving a half-wave rectifying circuit of the electromagnetic vibrator and reversely connecting a diode, purposes of braking quickly and protecting a coil can be achieved.
Owner:GUANGXI UNIV

Rolling shaft type ore size sorting machine with shaking effect

The invention discloses a rolling shaft type ore size sorting machine with the shaking effect. The rolling shaft type ore size sorting machine comprises a box body, a fixing plate, a first motor, a gear, a first chain, a second chain, a rotary wheel, a feed hopper, a first discharging hopper, a second discharging hopper and a third discharging hopper. The feed hopper penetrates through the top ofthe box body; the fixing plate is fixedly connected with the front face of the box body; the first motor is fixedly connected with the top of the fixing plate; a driving rolling wheel and driven rolling wheels penetrate through the front face of the box body; and the gear is fixedly connected with an output shaft of the first motor. Three times of sieving are carried out to ores, so that ore sieving is more meticulous, size of the ores after sieving is closer to unity and more uniform, subsequent ore processing in more convenient, subsequent ore processing efficiency is improved; and a sieve plate can shock up and down, and therefore ore distribution on the sieve plate is more uniform, sieving speed is higher, and sieving efficiency is greatly improved.
Owner:刘华杰

Cushion damping device for slamming screen

The invention discloses a cushion damping device for slamming screen. The cushion damping device comprises a base, a rectangular outer casing and an striking rod. A top of the damping spring fixed onthe upper surface of the base is fixed with a metal frame, and the first screen and the second screen are disposed inside the metal frame The circular wheel fixed on the surface of the rectangular outer casing is connected with the rotary electric machine inside the rectangular outer casing, the top of the rotating shaft mounted on the surface of the rectangular outer casing is provided with a swinging rod, and the small gear opened at the rear end of the swinging rod and the large gear opened on the upper surface of the striking rod are engaged with each other The right of the horizontal rodfixed to the right side surface of the metal frame is provided with a groove, the groove is fixed to the convex block fixed on the left surface of the rectangular casing, and the left end surface of the striking rod is provided with a metal damping soundproof felt. The cushion damping device for slamming screen solves the problem that no shock absorption measure and noise is too much by providinga damping spring, a circular wheel, a rotating electric machine, a swinging rod, a rotating shaft, a small gear, a large gear, a horizontal rod, a groove, a convex block and a metal damping soundprooffelt.
Owner:XINXIANG DONGZHEN MACHINERY

Fine sand screening and quantitative bagging integrated device

The invention discloses a fine sand screening and quantitative bagging integrated device. The device comprises a body, wherein the upper wall of the body communicates with a sand inlet pipe; a screening bin and a collecting bin are arranged in the body, and the screening bin communicates with the collecting bin; a screening mechanism is arranged in the screening bin; the screening mechanism comprises a motor fixedly connected to the top in the body; an output shaft of the motor is fixedly connected to a rotating shaft; the lower end of the rotating shaft is fixedly connected to a brush plate;rotating magnetic plates are fixedly embedded into the lower walls, close to the two ends, of the brush plate; the inner wall of the body is fixedly connected to a screening net; the inner wall of thescreening bin is fixedly connected to a plurality of fixing blocks; and placing cavities are arranged in the plurality of fixing blocks. According to the device, the manpower and time can be greatlysaved, the working efficiency is improved, the amount of sand in each bag is almost the same, the weighing is not needed, and the later data statistics can be facilitated.
Owner:廖冬花
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