CN113083684A

CN113083684A - Screening sand machine for construction

Info

Publication number: CN113083684A
Application number: CN202110244860.XA
Authority: CN
Inventors: 曹丽亚
Original assignee: Individual
Current assignee: Shengyu Construction Group Co ltd
Priority date: 2021-03-05
Filing date: 2021-03-05
Publication date: 2021-07-09
Anticipated expiration: 2041-03-05
Also published as: CN113083684B

Abstract

The invention discloses a sand screening machine for building construction, and mainly relates to the field of building machinery. Including pretreatment box, screening sandbox, pretreatment box is located the top of screening sandbox, is equipped with into husky mouth on the pretreatment box, is equipped with out husky mouth on the screening sandbox, is equipped with the filter screen in the pretreatment box, is equipped with reel, its characterized in that in the screening sandbox: the pretreatment tank is rotatably connected with a crushing body, the crushing body is positioned below the sand inlet, the filter screen is positioned at the top of the crushing body, the filter screen is rotatably connected with the side wall of the pretreatment tank, the crushing body is provided with a crushing part, the lower part of the crushing body is communicated with a sand leakage port with a wide upper part and a narrow lower part, the screen frame is positioned below the sand leakage port, the screen box is slidably connected with a sliding plate, the screen frame is rotatably connected with the two sliding plates, the screen box is provided with an arc-shaped slideway, the screen frame is provided with a sliding column, and the sliding column is slidably connected with the arc-shaped slideway. The invention has the beneficial effects that: the sand screening machine can reduce the influence of sand adhesion and large-particle sand stones on sand screening, improves sand screening efficiency and ensures construction period.

Description

Screening sand machine for construction

Technical Field

The invention relates to the field of construction machinery, in particular to a sand screening machine for building construction.

Background

When sand is used in building construction, the sand is usually required to be screened and used to ensure the quality of smearing after mixing, the existing sand screening machine generally utilizes the vibration of a screen plate to rapidly screen the sand, but the sand contains larger moisture after being loaded and transported from the sea and contains more large-particle sand stones, when the screen plate is utilized to perform vibration screening, the large-particle sand stone impurities in the sand and the sand are accumulated together, the sand screening efficiency is greatly influenced, the sand screening efficiency is lower as the time is longer, meanwhile, due to the existence of the moisture, the sand is easy to adhere to the screen plate to block the screen holes, the sand is easy to be gathered by water to form small sand lumps to block the screen holes, the sand screening efficiency of the existing sand screening devices is lower along with the sand screening process, the high-efficiency sand screening can be continuously maintained as long as the time is required, and the sand screening efficiency is influenced, the construction period of the building is not guaranteed, and the construction efficiency is reduced.

Disclosure of Invention

The invention aims to provide a sand screening machine for building construction, which can reduce the adhesion of sand and the influence of large-particle sand on sand screening, improve the sand screening efficiency and ensure the construction period.

In order to achieve the purpose, the invention is realized by the following technical scheme:

a sand screening machine for building construction comprises a pretreatment box and a sand screening box, wherein the pretreatment box is positioned above the sand screening box, a sand inlet is formed in the pretreatment box, a sand outlet is formed in the sand screening box, a filter screen is arranged in the pretreatment box, a screen frame is arranged in the sand screening box, a crushing body is rotatably connected in the pretreatment box and is positioned below the sand inlet, the filter screen is positioned at the top of the crushing body and is rotatably connected with the side wall of the pretreatment box, a crushing part is arranged on the crushing body and is in clearance fit with the side wall of the pretreatment box, a sand leakage port with a wide upper part and a narrow lower part is communicated with the lower part of the crushing body, the screen frame is positioned below the sand leakage port, sliding plates are respectively and slidably connected onto the two symmetrical side walls of the sand screening box, the two sides of the screen frame are respectively and rotatably connected with the two sliding plates, and arc-shaped slideways are respectively arranged on the two symmetrical side walls of the sand screening box, the bilateral symmetry of reel is equipped with the traveller, traveller and arc slide sliding connection.

Further, one side of arc slide is equipped with the spout, the bottom of reel is equipped with branch, the traveller rotates with branch to be connected, traveller sliding connection is in the spout.

Further, the arc slide includes straight slide, curved slide, the setting of curved slide symmetry is at the both ends of straight slide, the centre of a circle of curved slide is located the top of curved slide.

Furthermore, be equipped with the slide rail on the lateral wall of screening sand case, slide sliding connection is on the slide rail, it is connected with the carousel to rotate on the lateral wall of screening sand case to set up drive carousel pivoted first motor, the position rotation outside the centre of a circle on the carousel is connected with the connecting rod, the other end and the slide rotation of connecting rod are connected.

Furthermore, the crushing body is of a shell structure, the top of the crushing body is of a shape with a high middle part and two low ends, and the circular arrays of the crushing parts are distributed on the edges of the crushing body.

Further, the crushing part comprises a first convex body and a second convex body, the first convex body is distributed on the edge of the crushing body in an array mode, the second convex body is distributed on the side wall of the pretreatment tank in an array mode, and the edge of the first convex body is in clearance fit with the edge of the second convex body.

Furthermore, the cross sections of the pretreatment box and the crushing body are circular, the second convex body is rotatably connected with a roller, and the surface of the roller is in clearance fit with the surface of the first convex body.

Furthermore, a plurality of convex grooves are distributed on the side surface of the pretreatment box in an array mode, the second convex bodies are connected in the convex grooves in a sliding mode, and compression springs are arranged between the second convex bodies and the side walls of the convex grooves.

Furthermore, a coaming is connected to the outer side wall of the pretreatment tank along the vertical sliding direction, and a telescopic rod for driving the coaming to slide is arranged on the pretreatment tank.

Furthermore, a second motor is arranged in the sand leakage port, and an output shaft of the second motor is fixedly connected with the bottom of the crushing body.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the pretreatment box and the sand sieving box are arranged, sand enters through the sand inlet at the top of the pretreatment box, falls into the crushing body at the top, passes through the filter screen of the crushing body and moves downwards, the filter screen is a large-aperture filter device, large-particle sand stones can be filtered, the influence on the sand sieving efficiency caused by the mixing of the large-particle sand stones in the sand is avoided, when the screened sand passes through the crushing part below the crushing body, the crushing part is driven to rotate by the crushing body, so that accumulated sand clusters in the sand passing through the crushing part and the side wall of the pretreatment box are crushed, the blockage of sieve pores is avoided, and the large-particle sand stones and the sand clusters in the sand are removed through the pretreatment of the sand, so that the subsequent sand sieving efficiency is ensured;

the sand after pretreatment falls into the screen frame below from the sand leaking port, the screen holes are formed in the screen frame, the screen frame is driven to move left and right through sliding of the sliding plate to screen the sand inside, when the bottom of the screen frame moves through the arc-shaped slide way, one end of the screen frame can rise, the other end of the screen frame can be lowered, the sand in the screen frame can not only shake left and right to screen the sand, but also can tumble relative to the screen frame, the sand can be far away from the screen holes in the bottom, the gathered sand is dispersed to clean the screen holes, the maximum screening efficiency can be kept at the moment, the gathering of the sand formed by water is effectively prevented from being attached to the positions near the screen holes, the sand in the whole sand screening process can tumble in the screen frame, the sand screening efficiency is greatly improved, the actual sand screening effect is good, and the construction efficiency and the construction period are guaranteed.

Drawings

FIG. 1 is a schematic perspective view of the present invention.

Fig. 2 is a left side view of the present invention.

Fig. 3 is a cross-sectional view taken along the direction a of fig. 2 of the present invention.

Fig. 4 is a cross-sectional view taken along the direction B of fig. 2 of the present invention.

Fig. 5 is a cross-sectional view taken along direction C of fig. 2 of the present invention.

Reference numerals shown in the drawings:

1. a pretreatment tank; 2. screening a sand box; 3. a sand inlet; 4. a sand outlet; 5. a filter screen; 6. a screen frame; 7. a crushing body; 8. a crushing section; 9. a sand leakage opening; 10. a slide plate; 11. an arc-shaped slideway; 12. a traveler; 13. a chute; 14. a strut; 15. a straight slideway; 16. a curved slideway; 17. a slide rail; 18. a turntable; 19. a first motor; 20. a connecting rod; 21. a first convex body; 22. a second convex body; 23. a roller; 24. a convex groove; 25. a compression spring; 26. enclosing plates; 27. a telescopic rod; 28. a second motor.

Detailed Description

The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.

The invention relates to a sand screening machine for building construction, which comprises a main structure and a sand screening box 2, wherein the pretreatment box 1 is used for pretreating sand and removing large-particle sand impurities and accumulated sand from the sand to ensure the subsequent sand screening effect, the sand screening box 2 is used for screening the sand, the pretreatment box 1 is positioned above the sand screening box 2, a sand inlet 3 is arranged on the pretreatment box 1, preferably the sand inlet 3 is positioned at the top of the pretreatment box 1 to ensure that the sand is more convenient to enter, sand can be conveyed to the position above the sand inlet 3 by using conveying equipment and poured into the pretreatment box from the sand inlet 3, a sand outlet 4 is arranged on the sand screening box 2, the screened sand flows out from the sand outlet 4 at the bottom, a conveying belt can also be arranged at the sand outlet 4 to facilitate conveying the sand to a subsequent processing step in time, a filter screen 5 is arranged in the pretreatment box 1, the screen mesh of the filter screen 5 is large, and is used for screening large-particle impurities such as sand and stones to avoid the influence on subsequent sand screening, so that the sand passing efficiency is high, the screen frame 6 is arranged in the sand screening box 2, the screen mesh is arranged on the screen frame 6 and is used for screening sand, the pretreatment box 1 is rotationally connected with the crushing body 7, the crushing body 7 is positioned below the sand inlet 3, the filter screen 5 is positioned at the top of the crushing body 7, sand enters from the sand inlet 3 and then passes through the primary screen of the filter screen 5 and then falls onto the crushing body 7, the filter screen 5 is rotationally connected with the side wall of the pretreatment box 1, the crushing body 7 is provided with a crushing part 8, the crushing part 8 is in clearance fit with the side wall of the pretreatment box 1, sand falling onto the crushing body 7 moves downwards through the clearance between the crushing part 8 and the pretreatment box 1, and continuously rotates through the crushing body 7, the sand lumps gathered due to the moisture content are crushed into broken sand, so that the subsequent sand screening is convenient;

the sand leaking port 9 with a wide upper part and a narrow lower part is communicated below the crushing body 7, sand crushed by the crushing body 7 conveniently falls into the sand leaking port 9, the sand accurately falls into the screen frame 6 below through gathering of the sand leaking port 9 at the bottom, the screen frame 6 needs to move continuously, the bottom of the sand leaking port 9 is narrow, so that the sand is easy to concentrate, the sand accurately falls into the screen frame 6 in the left-right movement process of the screen frame 6 and then moves downwards, the screen frame 6 is positioned below the sand leaking port 9, sliding plates 10 are connected to two symmetrical side walls of the sand screening box 2 in a sliding manner, the sliding plates 10 horizontally slide along the side walls of the sand screening box 2, the sliding of the sliding plate 1 is driven by a driving structure, two sides of the screen frame 6 are respectively connected with the two sliding plates 10 in a rotating manner through rotating shafts, and the position, close to the bottom, of the middle part of the specific screen frame 6 is connected with the sliding plate 10 in a rotating manner, the two symmetrical side walls of the sand sieving box 2 are respectively provided with an arc-shaped slideway 11, the circle center of the arc-shaped slideway 11 is positioned above the arc-shaped slideway 11, namely the arc-shaped slideway 11 is bent upwards, the two symmetrical sides of the sieve frame 6 are respectively provided with a sliding column 12, the sliding columns 12 are in sliding connection with the arc-shaped slideway 11, the bottom of the sieve frame 6 can be provided with a guide wheel, the guide wheel is in rolling connection with the top of the arc-shaped slideway 11, so that the sieve frame 6 can smoothly slide along the direction of the arc-shaped slideway 11, when the sliding plate 10 slides to drive the sieve frame 6 to slide left and right, sand in the sieve frame can be left and right shaken for sieving, the sand sieving efficiency is improved, meanwhile, the sliding column 12 at the bottom of the sieve frame 6 can slide along the arc-shaped slideway 11, one end of the sieve frame 6 can ascend along the arc-shaped slideway 11 while driving the sieve frame 6 to slide left and right, the sand in the sieve can also, thereby avoid because the sieve mesh department of the bottom that contains the moisture gathering blocks up the sieve mesh, need not regularly shut down like this and clear up the sieve mesh, just can guarantee the best screening efficiency constantly, compare in the husky effect of simple shale shaker better, the sand is more difficult for gathering and blocks up the sieve mesh, has guaranteed efficient screening sand efficiency, has improved the efficiency of construction, has guaranteed construction period, possesses very good screening sand effect in the in-service use.

Preferably, one side of arc slide 11 is equipped with spout 13, and spout 13 runs through the side of arc slide 11, the bottom of reel 6 is equipped with branch 14, traveller 12 rotates through the round pin axle with branch 14 to be connected, traveller 12 sliding connection is in spout 13, traveller 12 stretches into spout 13 from the position of running through in, and the shape of spout 13 is come by the shape offset of arc slide 11, rather than keeping the same shape, makes reel 6 slide more stable and smooth and easy along arc slide 11.

Preferably, the arc-shaped slide way 11 comprises a straight slide way 15 and a curved slide way 16, the curved slide ways 16 are symmetrically arranged at two ends of the straight slide way 15, the center of the curved slide way 16 is located above the curved slide way 16, the screen frame 6 can be kept horizontal when located at the position of the straight slide way 15 located at the middle part, the sand can be kept in contact with the screen holes to the maximum extent, when the screen frame 6 is located on the curved slide ways 16 at the two ends, the sand can slide downwards or even tumble under the action of gravity due to the height difference between the two ends, at the moment, the sand is made to tumble through the screen holes at the bottom to avoid adhering and gathering, the efficiency of the sand passing through the screen holes is guaranteed while the cleaning effect of the screen holes is kept, and the efficiency of screening the sand is kept to.

Preferably, the side wall of the sand screening box 2 is fixed with a slide rail 17 by welding or bolts, the slide rail 17 is composed of a top part and a bottom part, the slide plate 10 is slidably connected between the top part and the bottom part of the slide rail 17, the side wall of the sand screening box 2 is rotatably connected with a rotary table 18 by a rotary shaft, and is provided with a first motor 19 for driving the rotary table 18 to rotate, an output shaft of the first motor 19 is fixedly connected with the rotary shaft, a connecting rod 20 is rotatably connected with the position outside the center of the circle on the rotary table 18 by a pin shaft, the other end of the connecting rod 20 is rotatably connected with the slide plate 10 by a pin shaft, the first motor 19 drives the rotary table 18 to rotate, so that the distance from one end of the connecting rod 20 to the slide plate 10 is periodically lengthened and shortened, the slide plate 10 is driven to move back and forth on the side wall of the sand screening box 2, the screen frame 6 is driven to, only the first motor 19 is required to rotate forward all the time, so that the driving movement of the screen frame 6 is more convenient, the control structure is simpler, and the control is smoother.

Preferably, the crushing body 7 is of a shell structure, the shell structure can enable the crushing body to have a large external surface area and simultaneously greatly reduce the weight of the device, the cost is reduced, the device can be conveniently moved, the top of the crushing body 7 is of a shape with a high middle part and two low ends, sand can smoothly move towards the edge of the crushing body 7 after falling to the top of the crushing body 7, the circular arrays of the crushing parts 8 are distributed at the edge of the crushing body 7, the sand can smoothly enter between the crushing parts 8 at the edge and the side wall of the pretreatment tank 1, the downward movement efficiency of the sand is improved, and the sand is prevented from being accumulated in the pretreatment tank.

Preferably, the crushing part 8 comprises a first convex body 21 and a second convex body 22, the protrusions of the first convex body 21 and the second convex body 22 can be in a pointed shape or an arc shape, the first convex body 21 is distributed on the edge of the crushing body 7 in an array mode, the second convex body 22 is distributed on the side wall of the pretreatment tank 1 in an array mode, the edge of the first convex body 21 is in clearance fit with the edge of the second convex body 22, the arrangement enables the clearance contact between the crushing part 8 and the side wall of the pretreatment tank 1 to be more uniform, the contact area is larger, and the crushing of sand lumps in sand falling in all directions is more uniform.

Preferably, the cross sections of the pretreatment tank 1 and the crushing body 7 are circular, so that the first convex body 21 and the second convex body 22 are distributed more uniformly and are manufactured more conveniently, the second convex body 22 is connected with the roller 23 in a rotating mode through the pin shaft, the surface of the roller 23 is in clearance fit with the surface of the first convex body 21, sand between the first convex body 21 and the second convex body 22 can rotate relative to the roller 23 when the crushing body 7 drives the first convex body 21 to rotate, the crushing body 7 rotates more smoothly, blocking of the sand gathering clamping shell to rotation of the crushing body 7 is avoided, and the effect of breaking gathered sand is guaranteed.

Preferably, a plurality of convex grooves 24 are distributed on the side surface of the pretreatment tank 1 in an array manner, one end of each convex groove 24 facing the inside of the pretreatment tank 1 is open, the second convex body 22 is connected in each convex groove 24 in a sliding manner, and a compression spring 25 is arranged between the second convex body 22 and the side wall of each convex groove 24, so that the structure can ensure that the first convex body 21 and the second convex body 22 have a crushing effect and can also ensure the flow rate of falling sand to the maximum extent, so that the compression spring 25 is extruded to generate reverse reset elastic force when the sand masses extrude the second convex body 22 to move towards the convex grooves 24, the second convex body 22 can move towards the first convex body 21 again by utilizing the reset elastic force action of the compression spring 25 when no sand masses exist, preparation is made for next crushing of the sand masses, the crushing is more flexible, and the efficiency of falling sand is ensured.

Preferably, there is bounding wall 26 along vertical sliding connection on the lateral wall of pretreatment case 1, be equipped with the gliding telescopic link 27 of drive bounding wall 26 on the pretreatment case 1, telescopic link 27 can use the structure that possesses flexible function such as electric push rod or cylinder all can, the bounding wall 26 can expose the filter screen 5 at top through the oscilaltion to make filter screen 5 go up the large granule grit of filtering get off in time after screening the certain time, avoid the too many filter screen 5 that block up of grit, such structure is more convenient and swift to the clearance of grit.

Preferably, a second motor 28 is arranged in the sand leakage opening 9, and an output shaft of the second motor 28 is welded and fixed with the bottom of the crushing body 7, so that the structure can effectively drive the crushing body 7 to rotate, and a better crushing effect is kept.

The working principle is as follows: according to the invention, by arranging the pretreatment tank 1 and the sand screening tank 2, sand enters through the sand inlet 3 at the top of the pretreatment tank 1, falls onto the crushing body 7 at the top, passes through the filter screen 5 of the crushing body 7 and moves downwards, the filter screen 5 is a large-aperture filter device, large-particle sand stones can be filtered, the influence on sand screening efficiency caused by mixing of the large-particle sand stones in the sand is avoided, when the screened sand passes through the crushing part 8 below the crushing body 7, the crushing part 8 is driven to rotate through the crushing body 7, so that accumulated sand clusters in the sand passing through the space between the crushing part 8 and the side wall of the pretreatment tank 1 are crushed, the blockage of a sieve hole is avoided, and the large-particle sand stones and sand clusters in the sand are removed through pretreatment of the sand, so that the subsequent sand screening efficiency is ensured;

the sand after pretreatment falls into the screen frame 6 below from the sand leaking port 9, the screen holes are formed in the screen frame 6, the screen frame 6 is driven to move left and right through sliding of the sliding plate 10 to screen the sand inside, when the bottom of the screen frame 6 passes through the arc-shaped slide way 11 in the moving process, one end of the screen frame is raised, the other end of the screen frame is lowered, the sand in the screen frame is not only shaken left and right to screen the sand, but also overturned relative to the screen frame 6, so that the sand can be kept away from the screen holes in the bottom under the non-stop condition, the gathered sand is scattered to clean the screen holes, the maximum screening efficiency is kept at the moment, the sand gathering formed by carrying water is effectively prevented from being attached to the positions near the screen holes, the sand in the whole screen frame overturns in the whole screen process, the screening efficiency is greatly improved, the actual sand screening effect is good, and the construction efficiency and the construction period are.

Claims

1. The utility model provides a screening sand machine for construction, includes pretreatment tank (1), sieve sandbox (2), pretreatment tank (1) is located the top of sieve sandbox (2), be equipped with into husky mouth (3) on pretreatment tank (1), be equipped with on the sieve sandbox (2) and go out husky mouth (4), be equipped with filter screen (5) in pretreatment tank (1), be equipped with reel (6), its characterized in that in sieve sandbox (2): the pretreatment tank (1) is rotationally connected with a crushing body (7), the crushing body (7) is positioned below the sand inlet (3), the filter screen (5) is positioned at the top of the crushing body (7), the filter screen (5) is rotationally connected with the side wall of the pretreatment tank (1), a crushing part (8) is arranged on the crushing body (7), the crushing part (8) is in clearance fit with the side wall of the pretreatment tank (1), the lower part of the crushing body (7) is communicated with a sand leakage opening (9) with a wide upper part and a narrow lower part, the screen frame (6) is positioned below the sand leakage opening (9), sliding plates (10) are slidably connected on two symmetrical side walls of the screen box (2), two sides of the screen frame (6) are respectively rotationally connected with the two sliding plates (10), two symmetrical side walls of the screen box (2) are respectively provided with arc-shaped slideways (11), and two symmetrical side walls of the screen frame (6) are provided with sliding columns (12), the sliding column (12) is connected with the arc-shaped slideway (11) in a sliding manner.

2. The sand screening machine for building construction according to claim 1, wherein: one side of arc slide (11) is equipped with spout (13), the bottom of reel (6) is equipped with branch (14), traveller (12) rotate with branch (14) and are connected, traveller (12) sliding connection is in spout (13).

3. The sand screening machine for building construction according to claim 2, wherein: arc slide (11) are including straight slide (15), curved slide (16), the setting of curved slide (16) symmetry is at the both ends of straight slide (15), the centre of a circle of curved slide (16) is located the top of curved slide (16).

4. The sand screening machine for building construction according to claim 1, wherein: be equipped with on the lateral wall of sieve sandbox (2) slide rail (17), slide (10) sliding connection is on slide rail (17), it is connected with carousel (18) to rotate on the lateral wall of sieve sandbox (2) to set up drive carousel (18) pivoted first motor (19), the position rotation outside the centre of a circle is connected with connecting rod (20) on carousel (18), the other end and the slide (10) of connecting rod (20) rotate to be connected.

5. The sand screening machine for building construction according to claim 1, wherein: the crushing body (7) is of a shell structure, the top of the crushing body (7) is of a shape that the middle is high and the two ends are low, and the crushing parts (8) are distributed on the edge of the crushing body (7) in a circular array.

6. The sand screening machine for building construction according to claim 5, wherein: the crushing part (8) comprises a first convex body (21) and a second convex body (22), the first convex body (21) is distributed at the edge of the crushing body (7) in an array mode, the second convex body (22) is distributed on the side wall of the pretreatment box (1) in an array mode, and the edge of the first convex body (21) is in clearance fit with the edge of the second convex body (22).

7. The sand screening machine for building construction according to claim 6, wherein: the cross sections of the pretreatment box (1) and the crushing body (7) are circular, the second convex body (22) is connected with a roller (23) in a rotating mode, and the surface of the roller (23) is in clearance fit with the surface of the first convex body (21).

8. The sand screening machine for building construction according to claim 7, wherein: a plurality of convex grooves (24) are distributed on the side face of the pretreatment box (1) in an array mode, the second convex bodies (22) are connected in the convex grooves (24) in a sliding mode, and compression springs (25) are arranged between the side walls of the second convex bodies (22) and the convex grooves (24).

9. The sand screening machine for building construction according to claim 1, wherein: the outer side wall of the pretreatment box (1) is connected with a coaming (26) along the vertical sliding direction, and a telescopic rod (27) for driving the coaming (26) to slide is arranged on the pretreatment box (1).

10. The sand screening machine for building construction according to claim 1, wherein: a second motor (28) is arranged in the sand leakage opening (9), and an output shaft of the second motor (28) is fixedly connected with the bottom of the crushing body (7).