115results about How to "Improve sand screening efficiency" patented technology

The invention discloses an efficient sand screening device for construction engineering. The efficient sand screening device comprises a box, a feeding hopper, a first screen plate, a second screen plate, a connecting plate, a connecting block, an electric pushing rod, a sliding sleeve, a spring, a first connecting rod, a ratchet wheel, a first motor, a guiding sleeve, a U-shaped rod, a pushing plate, a hairbrush, a second motor, a second connecting rod, a vertical rod, a conical plate, a movable plate, a rotating shaft and collecting frames. According to the efficient sand screening device for construction engineering, the first screen plate, the second screen plate and the electric pushing rod are arranged, therefore, the size of screen holes can be adjusted, and then sand with different particle sizes can be screened out to meet the different construction operation requirements; the first motor, the ratchet wheel and the first connecting rod are arranged, the first screen plate and the second screen plate can be driven to move left and right through cooperation of the first motor, the ratchet wheel and the first connecting rod, and therefore the sand screening efficiency is improved; the U-shaped rod, the pushing plate, the hairbrush, the second connecting rod, the vertical rod and the second motor are arranged, therefore, sand can be spread on the first screen plate, the hairbrush continuously brushes the second screen plate to avoid the condition that circular holes of the second screen plate are blocked, and then the screening efficiency is further improved.

The invention discloses a multi-stage high-efficiency sand screening device for construction engineering, which comprises a base plate, a sand screening box, a crushing device, a first screen, a second screen, a second spring, a sliding rod, a sliding sleeve, a connecting plate, a wool Brush, transmission mechanism, first gear, first reel, first traction rope, second gear, first cam, second cam, second reel and second traction rope, said transmission mechanism includes motor, The second disc, the movable rod, the first rack and the second rack, the present invention is provided with a crushing device, which crushes the agglomerated sand, avoids affecting the efficiency of sand screening, and is provided with a transmission mechanism, a first winding wheel, The second winding wheel, sliding rod, sliding sleeve, connecting plate and brush drive the brush to move left and right, brush the first screen and the second screen, and avoid the mesh holes of the first screen and the second screen from being blocked , Improve the screening efficiency, equipped with a first cam, a second cam and a second spring, so that the first screen and the second screen shake left and right, further improving the screening efficiency.

The invention discloses a sand screening device used in construction engineering, which comprises a device body; the device body is mainly composed of a base, a support rod, a top plate and a sand screening bucket; the surface of the base is fixedly connected with a support rod, and the top of the support rod is fixedly connected with a top plate , and the device body is provided with a sand sieve bucket, the two sides of the top of the sand sieve bucket are fixedly connected with sleeves, the sleeves are sleeved on the outside of the support rod and slidably connected with the support rod, the support rod is sleeved with a spring, and the surface of the base The two-axis motor is fixedly connected by bolts, and the two sides of the two-axis motor are connected with a rotating shaft. A moving part is set on the rotating shaft, and a sliding block is fixedly connected to the top of the moving part. The surface of the sliding block is inclined to cooperate with the bottom of the sand screening bucket. . The device improves the sand screening efficiency and sand screening effect, and is convenient for people to carry out sand screening. The sand and stones on the sand screening plate move upwards, and the position sensor controls the operation of the second cylinder to open the hinge door, which is convenient for discharging sand and stones, and the vibration is small. , easy to use.

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.

The invention discloses a circulating sand screening device for a construction site, which comprises a vibrating motor, a screen, a hydraulic cylinder and a circulating conveying device. The vibration of the vibrating motor is used to speed up the screening of the sand by the screen, and at the same time, the sand screening of the sand screen is avoided. The holes cause blockage and affect the normal use of the screen. The screen is set horizontally to fully screen the sand, and the hydraulic cylinder is used to drive the hydraulic rod to extend and then push the frame to rotate along the side hinged with the box, thus realizing the screen. The inclined setting of the screen makes the sand that does not pass through the screen fall into the collection tank under the action of gravity, which realizes the automatic cleaning of the sand that does not pass through the screen, improves the practicability of the equipment, and falls from the screen into the collection tank The sand inside further slides into the cylinder body along the slanting plate, thereby realizing the circular screening of the sand and improving the effect of sand screening.

The invention discloses a sand screening device for a construction site. The sand screening device comprises a base, supporting feet, a screening bin, a feeding inlet and a collection box. A shaking motor is fixedly connected with the middle of the lower surface of the base. A rack frame is slidably connected with the upper surface of the base. A half gear is arranged on a shaft extension end of the shaking motor in a sleeving mode. The screening bin is arranged above the rack frame. Sliding plates are fixedly connected with the left side and the right side of the screening bin correspondingly. A guiding rod is fixedly connected with the upper surface of the rack frame. A vibrating motor is fixedly connected with the upper surface of the screening bin. An opening is formed in the bottom ofthe screening bin. An arc screening plate is mounted at the bottom of the screening bin. A stirring shaft is arranged in the screening bin. In the sand screening process, the screening bin moves leftand right, the sand screening efficiency is improved, sand is stirred through stirring blades, thus, sand makes contact with the arc screening plate more sufficiently, the screening efficiency is further improved, the screening bin is driven by the vibrating motor to vibrate up and down, the screening efficiency is further improved, and sand can pass through the arc screening plate advantageously.

The invention relates to a small rotary type sand screening device. The small rotary type sand screening device effectively solves the problems of inadequate sand screening and inconvenience of stonedumping. According to the technical scheme, the small rotary type sand screening device includes two vertical plates, wherein a screen which can move and rotate along the vertical plates left and right is arranged between the two vertical plates; the screen can be restored to the horizontal position, the mesh size of the screen can be adjusted, and baffles are arranged on the front and rear sidesof the screen; grooves are formed in the inner side faces of the vertical plates, and positioning rods corresponding to the grooves are arranged on the outer side faces of the baffles; a plurality ofguide rods are fixed to the screen, scraper blades which can slide along the guide rods left and right are arranged on the guide rods in a penetrating mode, pressure springs are connected between thescraper blades and the right ends of the guide rods, and fixing devices are arranged on the front and rear two baffles; and a movable plate is articulated on the left side of the screen, line wheels are arranged below the vertical plates, ropes are wound on the line wheels, the end portions of the ropes are connected with the screen, and eccentric wheels rotates alternately with the line wheels are arranged on the vertical plates. The small rotary type sand screening device improves the efficiency of sand screening and reduces the manpower.

The invention discloses sand screening equipment for construction. The sand screening equipment comprises a sand screening box, an electric push rod, a first screen, a second screen, springs, a first gear, a second gear, an incomplete gear, a first rotary shaft, a first motor, a first bevel gear, a second bevel gear, a second rotary rod, cross rods, brushes, a reel and a second motor. The sand screening equipment is provided with the first screen and the second screen, and multi-stage screening can be conducted to meet requirements of different construction operations; the sand screening equipment is provided with the first motor, the first rotary shaft, the incomplete gear, the first gear, the second gear and the springs, the first screen and the second screen are made to shake continuously through cooperation, and the sand screening efficiency is improved; the sand screening equipment is provided with the first bevel gear, the second bevel gear, the second rotary shaft, the cross rods and the brushes, the bottom of the first screen and the top of the second screen are brushed continuously through the brushes, meshes of the first screen and the second screen are prevented from being blocked, and the sand screening efficiency is further improved; and the sand screening equipment is provided with the electric push rod, the reel and the second motor, and discharging is convenient.

The invention discloses a sand sieving device for building construction. The device comprises a sieving box, supporting columns and a base, wherein a sand pre-sieving component and a sand grading-sieving component are sequentially arranged from top to bottom in the sieving box; the sand pre-sieving component comprises a first sieving plate, a reset spring, a fixed plate and a driven shaft; and thesand grading-sieving component comprises a pushrod, a discharging hopper, a sieving frame, a telescopic rod and a second sieving plate. According to the device, the sand pre-sieving component and thesand grading-sieving component are driven by a driving component to work simultaneously, a scraping plate in the sand pre-sieving component rotates to turn over sand gathering on the first sieving plate, so that accumulation is prevented, and sand sieving efficiency is improved; and the second sieving plate in the sand grading-sieving component realizes sand grading sieving according to the sizeof the sand, so that the sand sieving quality is improved.

The invention discloses a small efficient sand screening machine for civil engineering. The machine comprises a box body; a sand screening net plate is matched at the bottom of the box body; multiplevibrators are arranged on the lower side of the sand screening net plate; a rotating shaft is arranged in middle of the upper side of the sand screening net plate; spiral blades matched with the bottom of the sand screening net plate are mounted on the rotating shaft; a driven belt wheel is fixedly mounted on the rotating shaft on the right side of the box body; the driven belt wheel is connectedwith a driving belt wheel mounted on an output shaft of a speed reducer through a triangular belt; an input shaft of the speed reducer is connected with an output shaft of a driving motor; and the speed reducer and the driving motor are fixed at the top of the box body. The machine can use one motor for controlling unloading and overturning of sand and prolonging the stop time of the sand, and canadjust the angle to improve the sand screening effect and efficiency and to reduce the production cost.

The invention provides a sand screening device for construction. The sand screening device for the construction comprises a rectangular frame, four machine legs, two symmetrically-arranged baffles, ascreen frame connected to the frame through a pivot and a screen arranged on the screen frame; the frame, the machine legs and the baffles define a space capable of containing a trolley; a rotating shaft is rotatably arranged at the position, corresponding to the end of the free end of the screen frame, of the frame, a plurality of cams are arranged on the rotating shaft, and the circumferential surfaces of the cams abut against the screen frame; and a motor platform is further arranged on the frame, a motor is arranged on the motor platform, and the motor drives the rotating shaft to rotate through a belt transmission mechanism. The sand screening device for the construction is high in sand screening efficiency.

The invention discloses a construction site sand screening device capable of preventing raise dust. The construction site sand screening device capable of preventing raise dust comprises a base, a sand screening frame, a screen plate, a rotating disc, a cylinder body and a water storing groove, an annular cavity is formed in the middle inner cavity wall, the edge of the screen plate extends into the cavity and is connected with a cavity top of the cavity through a spring, and an annular plate is fixed to the bottom of the screen plate and is provided with a sliding groove; and the rotating disc is connected to the lower portion of the annular plate in a matched manner, the cylinder body is fixed to the left side of the bottom of the sand screening frame, and the water storing groove is fixed to the left side of the top of the base. The construction site sand screening device is compact in structure and convenient and quick to operate, the sand screening efficiency can be effectively improved, the sand screening effect is guaranteed, the dust removal function is achieved, the dust generated in the sand screening process is prevented from polluting the environment, and the body health of a constructor is protected; and meanwhile, through linkage design, sand screening and dust removal can be carried out at the same time, the timeliness of dust removal is guaranteed, and the overall device is operated and controlled more easily.

The invention discloses a sand screening device for building construction. The sand screening device comprises a box body, a material collecting box, a material guiding hopper, a circular screen, an installation sleeve, a sponge ring, a screen cylinder, a cam, a feeding hopper, a stepping motor, a material inlet bin, a rotary sleeve, a telescopic rod, an installation plate, a driven gear, a gear ring, a guide rod, a brush, a movable bolt and an arc-shaped screen. According to the sand screening device, the sand can be better screened, the manual operation of the staff is avoided, thus the labor intensity of the staff is greatly reduced, the efficiency of sand screening is greatly improved, the sponge ring is impacted repeatedly by the screen cylinder which is horizontally moved, thus the sand is prevented from clogging the arc-shaped screen and the circular screen, meanwhile the brush is used for cleaning the arc-shaped screen, the screened fine sand is guided into the material collecting box through the material guiding hopper for collection, thus the sand is prevented from clogging screen holes on the arc-shaped screen and the circular screen, the screening efficiency is greatlyimproved, and meanwhile the practicability is also enhanced.

A high-efficient construction site sand sieving system comprising a base plate, a first rack device, a recovery device, a collection frame, a first frame body device, a second frame body device and a second rack device. A first supporting block and first rolling wheels are mounted on the base plate; the first rack device is formed by a first support, a second support, a first cross rod, a first vertical rod and a second cross rod; the recovery device is formed by a recovery case, a third cross rod and a first fixing block; a first through hole, a first filter net, a first vibrator, second rolling wheels and brush hair; the first frame body device is formed a first frame body, a third rolling wheel, a second filter net, second supporting blocks, first springs and third supports; the second frame body device is formed by a second frame body, a third filter net, a first fixing rod, a second vibrator, a second spring, a fourth rolling wheel and projecting blocks; and the second rack device is formed by a fourth support and a connection rod. Sand can be automatically sieved with high efficiency by the use of the high-efficient construction site sand sieving system.

The invention discloses a high-efficient and easy-for-discharging sand screening device used at a construction site. The high-efficient and easy-for-discharging sand screening device comprises a base,a sand screening frame, a screening plate and a sliding rod, wherein the sliding rod is arranged on a right and lower part of the sand screening frame; a bottom of the sliding rod is connected with the base through a telescopic spring; and a resisting plate is fixedly arranged on a left side of the sliding rod and is matched with a rotary resisting wheel. According to the high-efficient and easy-for-discharging sand screening device, through cooperation use of the resisting wheel and the resisting plate, the sliding rod can be driven to impact the sand screening frame continuously during rotation of a rotary rod, so that the sand screening frame which is elastically connected is vibrated so as to screen sand; meanwhile, the sand screening frame is suddenly tilted under impact of the sliding rod, so that the sand on the screening plate is flung about; sand caking is prevented, and sand screening efficiency is improved; after sand screening is finished, the sand screening frame is tilted by pulling a steel rope, so that the sand screening frame is lower on the left and higher on the right; and the sand can automatically slide out of a material outlet pipe under the effect of gravity, and an effect of more convenient discharging is reached.

The invention discloses a sand drying and grading device for building construction. The device comprises a drying box body, wherein a feed hopper is arranged at the top of the drying box body; a double-shaft stirring device is arranged in the drying box body; an electric heater and a humidity sensor are arranged on the inner side wall of the drying box body; a discharge plate is hinged to the bottom of the drying box body; a first vibrating motor is arranged at the bottom of the discharge plate; an annular vibrating basket is arranged at a position obliquely below the discharge plate; a second vibrating motor is arranged on the annular vibrating basket; a screen mesh is arranged in the annular vibrating basket; the bottom of the annular vibrating basket is connected with the top of a fixing groove through a spring; and a collecting basket is arranged in a notch of the fixing groove. According to the device, the sand can be dried and graded, the phenomenon of agglomeration is effectively avoided, the sand with proper water content and proper mesh number is finally obtained, the sand screening efficiency is improved, and the labor intensity of workers is reduced.

The invention discloses a sand screening device for building construction, which includes a feed box. The sand screening device for building construction has a simple structure and stable operation. The second gear motor drives the screen material cylinder to rotate to perform coarse screening of sand and gravel. Layered screening, the sieve plate rotates and lifts to carry out secondary screening of the gravel to improve the screening efficiency and quality of the gravel. The feeding hopper and slag discharge plate can be turned and adjusted to facilitate the discharge of coarse slag on the upper side and inner side of the sieve material cylinder. The outer pipe and the inner pipe are driven to rotate by the first reduction motor, so that the sieve plate rotates in the sliding seat with the inner pipe, and the sand falling from the blanking plate is evenly distributed on the sieve plate under the action of centrifugal force, and cooperates with the sieve plate The movement in the vertical direction makes the gravel quickly pass through the sieve plate, which improves the efficiency of sand screening. The separation of coarse sand and fine sand is realized through the partition plate, which is more convenient to use, simple in structure, high in sand screening efficiency, and reduces the labor intensity of workers. , more convenient to use.

The present invention relates to a screening device, in particular to a fine sand screening device capable of automatically discharging coarse sand, comprising a sand feeding cylinder assembly, a rotating disk assembly, a sand screening assembly, a coarse sand collection assembly, a sand screening drive assembly and The installation frame assembly, the sand inlet barrel assembly includes the sand inlet barrel body, the sand falling pipe, the sand rotating anti-blocking device, the upper supporting plate, the fixing column and the lower supporting plate; the lower end of the sand inlet barrel body is welded and connected to the falling Sand pipe; the lower end of the sand rotating anti-blocking device is connected to the inside of the sand inlet barrel body in rotation, and the upper end of the sand rotating anti-blocking device is connected to the upper supporting plate in a rotating fit, and the lower end of the upper supporting plate is fixed by The column is connected to the lower supporting plate; the sand falling pipe is connected to the lower supporting plate through threads. The invention can effectively solve the problem that the sand screening device in the prior art cannot automatically discharge the remaining coarse sand after fine sand screening; the invention can automatically discharge the coarse sand without manual cleaning, and its sand screening efficiency is high, and Sand works better.

The invention discloses an environment-friendly sand screening equipment for construction and municipal use, which includes a car body, the car body includes a chassis, the front part of the lower end of the chassis is connected with a front axle frame through a steering shaft, and the front axle frame passes through The front axle is connected with the front wheel, the steering axle is also connected with the guide rod, the rear part of the lower end of the chassis is connected with the rear axle frame through the follower shaft, and the rear axle frame is connected with the rear wheel through the rear axle. The follower shaft is also connected with a follower rod, the rear part of the guide rod is provided with a slide groove, and the front end of the follower rod is connected with a slide block, and the slide block is cooperatingly arranged in the slide groove. The guide rod is vertically connected with the front axle frame, and the follower rod is vertically connected with the rear axle frame. The equipment of the invention can be turned flexibly, and the sand screening device has high sand screening efficiency.

The invention discloses a multifunctional construction machinery sand screening machine, and relates to the technical field of mechanical equipment for construction sites. The multifunctional construction machinery sand screening machine comprises a crushing barrel, a sand screening fan and a distribution box, wherein a fixed screen plate, a rotary screen plate and a crushing roller are arranged in the crushing barrel and are rotationally matched; and a screening air pipe and a speed reducing air pipe are arranged on the surface of the sand screening fan, and both the screening air pipe and the speed reducing air pipe communicate with the crushing barrel. According to the multifunctional construction machinery sand screening machine, the crushing barrel is arranged, a crushing column of the fixed screen plate is matched with the rotary screen plate to shear and crush bonded sand blocks so as to improve the sand screening efficiency, and the arranged crushing roller is located at the uppermost part of the crushing barrel to preliminarily crush sand so as to facilitate subsequent layer-by-layer screening; the speed reducing air pipe and the screening air pipe are arranged, the sand screening fan is used for blowing air, and rapidly falling sand flow is reduced through the speed reducing air pipe, so that subsequent accurate screening is facilitated; and meanwhile, light impurities in the decelerated sand flow are screened out by using the screening air pipe, or the sand is directly screened into fine sand and coarse sand, so that the working efficiency is improved.