CN108970994B

CN108970994B - Building sand screening device with adjustable speed

Info

Publication number: CN108970994B
Application number: CN201811020116.6A
Authority: CN
Inventors: 胡敏; 买力夏提; 于光泽; 王利
Original assignee: China Construction Fifth Engineering Bureau Co Ltd
Current assignee: China Construction Fifth Engineering Bureau Co Ltd
Priority date: 2018-09-03
Filing date: 2018-09-03
Publication date: 2021-05-14
Anticipated expiration: 2038-09-03
Also published as: CN108970994A

Abstract

The invention discloses a speed-adjustable building sand screening device which comprises a shell, a feed hopper, a blanking pipe, a motor, a blower, a discharge hole and an induced draft fan, wherein the shell is provided with a feed hopper; the fine screening barrel is arranged at the top in the shell and is of a horizontal cylindrical structure through a fixed support, a rotatable coarse screening barrel is coaxially arranged in the fine screening barrel, a fine sand collecting cavity is formed in the right side of the first partition plate and is located below the fine screening barrel, a plurality of hair dryers with adjustable angles are arranged in the fine sand collecting cavity, the hair dryers incline to the upper left, and sand in the fine screening barrel and the coarse screening barrel above the hair dryers flow to the left under the action of the hair dryers. According to the sand screening device, sand is separately screened through the double-layer screen drum, so that the influence on the screening effect caused by the blockage of small meshes by large-particle sand is avoided; have the adjustable hair-dryer of incline direction at the sand screening in-process, blow inside sand to one end, improve the mobility of sand in inside, make the sand screening more smooth and easy, improve screening efficiency.

Description

Building sand screening device with adjustable speed

Technical Field

The invention relates to building construction equipment, in particular to a building sand screening device with adjustable speed.

Background

Sand is one of the particulate materials, which is a naturally occurring rock that is divided into very fine particles, where a single particle within one dimension is called sand, the next smaller dimension is classified geologically as mud, the next larger dimension is classified as gravel, and the particle size is two to sixty-four millimeters using standard specification particle sizes. The loose mixture of sand grains and crushed stones is geologically characterized in that mineral or rock grains with small grain size are called sand, gravel or cobble grains with grain size larger than two millimeters are called gravel or sandstone (the difference between the gravel and the gravel is that the gravel is ground to different degrees, the detail is that the gravel or the sandstone is called as terms), if the crushed stones are mostly gravel, the gravel is called as sand gravel, sandstone is called as sandstone in daily life, and modern buildings mainly use reinforced concrete.

During the construction operation of building, the screening sand is an important link of stone in the clearance sand material, the quality of sand material has also directly influenced the quality of whole building behind the screening sand, especially the concrete mixing stage, depend on the quality of sand material completely, screening sand process at present generally all adopts mechanical screening sand, but current screening sand device is though can carry out the screening of grit, but current screening sand device does not remove the speed governing to the sand on the screen cloth for the same screening sand time has all been used to the sand grain condition of difference, is unfavorable for improving screening sand efficiency.

Disclosure of Invention

The invention aims to provide a building sand screening device with adjustable speed, which solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a building sand screening device with adjustable speed comprises a shell, a feed hopper, a blanking pipe, a motor, a blower, a discharge hole and an induced draft fan; the feeding hopper is fixed at the top of the shell, the bottom of the feeding hopper is communicated with a blanking pipe extending into the shell, a fine screen cylinder with a horizontal cylindrical structure is installed at the top in the shell through a fixed support, a rotatable coarse screen cylinder is coaxially arranged in the fine screen cylinder, the mesh of the coarse screen cylinder is larger than that of the fine screen cylinder, the lower end of the blanking pipe obliquely extends into the fine screen cylinder, a horizontal transmission shaft penetrates through the central shaft of the coarse screen cylinder, the transmission shaft is fixedly welded on the inner wall of the coarse screen cylinder through a support rod on the side wall, and the transmission shaft is coaxially and fixedly connected to an output shaft of a motor; a vertical first partition plate is fixed on the lower side of the left end of the fine screen cylinder, and a vertical second partition plate is fixed on the lower side of the left end of the coarse screen cylinder; a first collecting cavity is arranged between the first partition plate and the second partition plate, and the left side of the second partition plate is provided with a second collecting cavity which is respectively used for collecting sand left after screening in the fine screening cylinder and the coarse screening cylinder; the right side of the first partition plate is provided with a fine sand collecting cavity, the fine sand collecting cavity is positioned below the fine screen cylinder, and fine sand screened by the second collecting cavity is collected in the fine sand collecting cavity; in order to improve the flowing effect of sand in the fine screen cylinder and the coarse screen cylinder, a plurality of blowers with adjustable angles are arranged in the fine sand collecting cavity, the blowers incline towards the upper left, and the sand in the fine screen cylinder and the coarse screen cylinder above the blowers flows towards the left under the action of a blowing meeting.

Further: the lower ends of the hair dryers are rotatably connected to a fixing rod at the same level through a first pin shaft to support the hair dryers, so that the hair dryers rotate around the first pin shaft, the upper ends of the hair dryers are rotatably connected to an adjusting rod at the same level through a second pin shaft, the inclination angle of the hair dryers is adjusted by pushing and pulling the adjusting rod, the tail end of the adjusting rod outwards penetrates through the shell, a limiting plate perpendicular to the adjusting rod is fixed at the tail end of the adjusting rod, a supporting seat fixed on the shell is arranged below the limiting plate, the supporting seat is horizontally arranged, a vertical adjusting plate is slidably connected onto the supporting seat, when the hair dryers are located at the vertical position, the upper end of the adjusting plate is flush with the lower end of the limiting; the horizontal lead screw is worn to be equipped with by the regulating plate internal thread, and the one end of lead screw is passed through the bearing and is rotated and connect on the casing outer wall, and the handle is established to an pot head in addition, through the horizontal position that rotates lead screw regulating plate, utilizes the regulating plate to compress tightly the laminating on the limiting plate, supports the limiting plate, avoids the limiting plate to remove to the hair-dryer rigidity with the slope.

Further: the draught fan communicated with the inside is installed at the top of the shell, the inside air is pumped out, the flowability of the inside air is realized, and the air blowing effect is enhanced.

Further: the second partition plate and the coarse screening barrel are sealed through a sealing ring fixed on the coarse screening barrel, the coarse screening barrel can be sealed with the second partition plate when rotating, and sand in the coarse screening barrel can fall down from the left side of the second partition plate.

Further: collect the intracavity at first collection chamber, second and all be fixed with the fine screen otter board, the mesh size of fine screen otter board is the same with the mesh size of a fine screen section of thick bamboo, and the fine screen otter board is the font structure to seted up the bin outlet on the casing lateral wall that the bottom of fine screen otter board is right, discharge the large granule sand that fine screen otter board upside was screened.

Further: a protective net is covered on a blowing opening of the hair drier, a circle of material baffle is arranged on the outer side of the hair drier, the width of the material baffle is 0.3-0.5m, and sand falling from the upper side is prevented from entering the hair drier.

Further: magnet pieces are fixed on two sides of the limiting plate, iron pieces are arranged on two sides of the adjusting plate, and the magnet pieces and the iron pieces are attracted through the limiting plate moving downwards.

Compared with the prior art, the invention has the beneficial effects that: according to the sand screening device, sand is separately screened through the double-layer screen drum, so that the situation that the screening effect is influenced due to the fact that smaller meshes are blocked by large-particle sand is avoided, the large-particle sand after screening is collected conveniently and rapidly, and time and labor are saved; an air blower with adjustable inclination direction is arranged in the sand screening process to blow the sand inside to one end, so that the fluidity of the sand inside is improved, the sand screening is smoother, and the screening efficiency is improved; the inclination angle of the blower can be adjusted conveniently and quickly, and the blower is fixed firmly and keeps inclining for a long time, so that the blower is safer and more stable to use.

Drawings

Fig. 1 is a schematic structural diagram of a speed-adjustable building sand screening device.

Fig. 2 is a schematic structural diagram of an adjusting plate in a speed-adjustable building sand screening device.

Fig. 3 is a schematic front view of a blower in a speed-adjustable building sand screening device.

In the figure: 1-shell, 2-feed hopper, 3-blanking pipe, 4-fine screen cylinder, 5-coarse screen cylinder, 6-fixed support, 7-motor, 8-transmission shaft, 9-support rod, 10-first partition plate, 11-second partition plate, 12-sealing ring, 13-first collection cavity, 14-second collection cavity, 15-fine sand collection cavity, 16-fine screen plate, 17-fixed rod, 18-blower, 19-first pin shaft, 20-second pin shaft, 21-striker plate, 22-adjusting rod, 23-limiting plate, 24-magnet piece, 25-adjusting plate, 26-support seat, 27-screw rod, 28-iron piece, 29-protective screen, 30-discharge port and 31-induced draft fan.

Detailed Description

Referring to the drawings, in the embodiment of the invention, a speed-adjustable building sand screening device comprises a shell 1, a feed hopper 2, a blanking pipe 3, a motor 7, a blower 18, a discharge port 30 and an induced draft fan 31; the feeding hopper 2 is fixed at the top of the shell 1, the bottom of the feeding hopper 2 is communicated with a discharging pipe 3 extending into the shell 1, a fine screen cylinder 4 with a horizontal cylindrical structure is installed at the top of the shell 1 through a fixed support 6, a rotatable coarse screen cylinder 5 is coaxially arranged in the fine screen cylinder 4, the meshes of the coarse screen cylinder 5 are larger than those of the fine screen cylinder 4, the lower end of the discharging pipe 3 obliquely extends into the fine screen cylinder 4, the entering sand is fed into the coarse screen cylinder 5 for filtering, a horizontal transmission shaft 8 penetrates through the central shaft of the coarse screen cylinder 5, the transmission shaft 8 is fixedly welded on the inner wall of the coarse screen cylinder 5 through a support rod 9 on the side wall, the transmission shaft 8 is coaxially and fixedly connected to an output shaft of a motor 7, the transmission shaft 8 is driven to rotate through the motor 7, the rotation of the coarse screen cylinder 5 is realized, the sand entering the coarse screen cylinder 5 rolls inside, is convenient for screening.

A vertical first partition plate 10 is fixed on the lower side of the left end of the fine screen cylinder 4, a vertical second partition plate 11 is fixed on the lower side of the left end of the coarse screen cylinder 5, the second partition plate 11 and the coarse screen cylinder 5 are sealed through a sealing ring 12 fixed on the coarse screen cylinder 5, so that the coarse screen cylinder 5 can be guaranteed to be sealed with the second partition plate 11 when rotating, and sand in the coarse screen cylinder can fall from the left side of the second partition plate 11; set up to first collection chamber 13 between first baffle 10 and the second baffle 11, the left side of second baffle 11 sets up to the second and collects chamber 14, be used for collecting fine screen section of thick bamboo 4, the remaining sand after the screening in the coarse screen section of thick bamboo 5 respectively, collect chamber 13, the second all is fixed with fine screen mesh board 16 in collecting chamber 14 at first, fine screen mesh board 16's mesh size is the same with fine screen section of thick bamboo 4's mesh size, fine screen mesh board 16 is herringbone structure, and seted up the bin outlet on the casing 1 lateral wall that fine screen mesh board 16's bottom is right, discharge the large granule sand of fine screen mesh board 16 upside screening.

The right side of the first partition plate 10 is provided with a fine sand collecting cavity 15, the fine sand collecting cavity 15 is positioned below the fine screen cylinder 4, and fine sand screened by the second collecting cavity 14 is collected in the fine sand collecting cavity 15; in order to improve the flowing effect of sand in the fine screen cylinder 4 and the coarse screen cylinder 5, a plurality of blowers 18 with adjustable angles are arranged in the fine sand collecting cavity 15, the blowers 18 incline towards the upper left, the sand in the fine screen cylinder 4 and the coarse screen cylinder 5 above flows towards the left under the action of an air blowing meeting, a protective net 29 is covered on an air blowing port of the blowers 18, a circle of material baffle plates 21 are arranged on the outer side of the air blowing port, the width of each material baffle plate 21 is 0.3-0.5m, and the sand falling from the upper part is prevented from entering the blowers 18; the lower ends of a plurality of blowers 18 are rotatably connected on a fixed rod 17 at the same level through a first pin shaft 19, the blowers 18 are supported, the blowers 18 rotate around the first pin shaft 19, the upper ends of the blowers 18 are rotatably connected on an adjusting rod 22 at the same level through a second pin shaft 20, the inclination angle of the blowers 18 is adjusted by pushing and pulling the adjusting rod 22, the tail end of the adjusting rod 22 penetrates out of the shell 1, a limiting plate 23 perpendicular to the adjusting rod 22 is fixed on the tail end of the adjusting rod 22, magnet sheets 24 are fixed on both sides of the limiting plate 23, a supporting seat 26 fixed on the shell 1 is arranged below the limiting plate 23, the supporting seat 26 is horizontally arranged, a vertical adjusting plate 25 is slidably connected on the supporting seat 26, when the blowers 18 are at the vertical position, the upper end of the adjusting plate 25 is flush with the lower end of the limiting plate 23, and, iron sheets 28 are arranged on two sides of the adjusting plate 25, the magnet sheets 24 and the iron sheets 28 are attracted through the limiting plate 23 moving downwards, and the limiting plate 23 is fixed; horizontal lead screw 27 is worn to be equipped with by the regulating plate 25 internal thread, and the one end of lead screw 27 is passed through the bearing and is rotated and connect on 1 outer wall of casing, and the handle is established to one pot head in addition, through rotating the horizontal position that the regulating plate 25 was adjusted to lead screw 27, utilizes regulating plate 25 to compress tightly the laminating on limiting plate 23, supports limiting plate 23, avoids limiting plate 23 to remove to hair-dryer 18 rigidity with the slope.

The draught fan 31 communicated with the inside is installed at the top of the shell 1, the inside air is pumped out, the flowability of the inside air is realized, and the air blowing effect is enhanced.

When in use, sand to be screened for buildings is loaded into the device through the feed hopper 2, the sand is fed into the coarse screen cylinder 5 under the action of the blanking pipe 3, the coarse screen cylinder 5 is driven by the motor 7 to rotate, coarse screening is firstly carried out in the coarse screen cylinder 5, the screened smaller sand falls on the fine screen cylinder 4, fine screening is carried out through the fine screen cylinder 4, finally fine sand required by composite use falls in the fine sand collecting cavity 15 and is collected and taken out, the sand is blown towards the fine screen cylinder 4 and the coarse screen cylinder 5 by adjusting the inclination angle of the blower 18 in the screening process of the fine screen cylinder 4 and the coarse screen cylinder 5, the sand in the screen cylinder is blown leftwards, the screened thickness large sand falls in the corresponding first collecting cavity 13 and the second collecting cavity 14, the required sand screening is carried out again in the first collecting cavity 13 and the second collecting cavity 14, and the sand required composite sand is fully screened, loss is reduced; and the hair-dryer 18 is in the regulation process, at first after the inclination angle of hair-dryer 18 is fixed, hair-dryer 18 inclines upwards left for it has the thrust to the right of limiting plate 23, consequently, need move regulating plate 25 to the right side of limiting plate 23, press on regulating plate 25 through limiting plate 23, support limiting plate 23, avoid its right removal, thereby guarantee the rigidity of hair-dryer 18.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A building sand screening device with adjustable speed comprises a shell (1), a feed hopper (2), a blanking pipe (3), a motor (7), a blower (18), a discharge hole (30) and an induced draft fan (31); the feeding hopper (2) is fixed at the top of the shell (1), the bottom of the feeding hopper (2) is communicated with a discharging pipe (3) extending into the shell (1), a fine screen cylinder (4) of a horizontal cylindrical structure is installed at the top of the shell (1) through a fixed support (6), a rotatable coarse screen cylinder (5) is coaxially arranged in the fine screen cylinder (4), the meshes of the coarse screen cylinder (5) are larger than those of the fine screen cylinder (4), the lower end of the discharging pipe (3) obliquely extends into the fine screen cylinder (4), a horizontal transmission shaft (8) penetrates through the central shaft of the coarse screen cylinder (5), the transmission shaft (8) is fixedly welded on the inner wall of the coarse screen cylinder (5) through a support rod (9) on the side wall, and the transmission shaft (8) is coaxially and fixedly connected to an output shaft of a motor (7); the fine screening device is characterized in that a vertical first partition plate (10) is fixed on the lower side of the left end of the fine screening cylinder (4), and a vertical second partition plate (11) is fixed on the lower side of the left end of the coarse screening cylinder (5); a first collecting cavity (13) is arranged between the first partition plate (10) and the second partition plate (11), and a second collecting cavity (14) is arranged on the left side of the second partition plate (11); the right side of the first partition plate (10) is provided with a fine sand collecting cavity (15), the fine sand collecting cavity (15) is positioned below the fine screen cylinder (4), a plurality of angle-adjustable air blowers (18) are arranged in the fine sand collecting cavity (15), the air blowers (18) incline to the upper left, and sand in the fine screen cylinder (4) and the coarse screen cylinder (5) on the upper side flows to the left under the action of the air blowers (18);

the lower ends of a plurality of hair dryers (18) are rotatably connected onto a fixing rod (17) at the same level through a first pin shaft (19), the upper ends of the hair dryers (18) are rotatably connected onto an adjusting rod (22) at the same level through a second pin shaft (20), the tail end of the adjusting rod (22) penetrates out of the shell (1), a limiting plate (23) perpendicular to the adjusting rod is fixed onto the tail end of the adjusting rod (22), a supporting seat (26) fixed onto the shell (1) is arranged below the limiting plate (23), the supporting seat (26) is horizontally arranged, a vertical adjusting plate (25) is slidably connected onto the supporting seat (26), and when the hair dryers (18) are located at the vertical position, the upper end of the adjusting plate (25) is flush with the lower end of the limiting plate (23); a horizontal screw rod (27) penetrates through the inner thread of the adjusting plate (25), one end of the screw rod (27) is rotatably connected to the outer wall of the shell (1) through a bearing, and the other end of the screw rod is sleeved with a handle.

2. A speed adjustable building screening apparatus as claimed in claim 1, wherein: and an induced draft fan (31) communicated with the inside is installed at the top of the shell (1).

3. A speed adjustable building screening apparatus as claimed in claim 1, wherein: the second clapboard (11) and the coarse screen cylinder (5) are sealed by a sealing ring (12) fixed on the coarse screen cylinder (5).

4. A speed adjustable building screening apparatus as claimed in claim 1, wherein: fine screen plates (16) are fixed in the first collecting cavity (13) and the second collecting cavity (14).

5. A speed adjustable building sand screening device as claimed in claim 4, wherein: the mesh size of fine screen otter board (16) is the same with the mesh size of fine screen section of thick bamboo (4), and fine screen otter board (16) is the herringbone structure to seted up the bin outlet on casing (1) lateral wall that the bottom of fine screen otter board (16) corresponds.

6. A speed adjustable building screening apparatus as claimed in claim 1, wherein: a protective screen (29) is covered on the air blowing port of the blower (18), a ring of material baffle plates (21) are arranged on the outer side, and the width of the material baffle plates (21) is 0.3-0.5 m.

7. A speed adjustable building screening apparatus as claimed in claim 1, wherein: magnet pieces (24) are fixed on two sides of the limiting plate (23), iron pieces (28) are arranged on two sides of the adjusting plate (25), and the magnet pieces (24) and the iron pieces (28) are attracted through the limiting plate (23) moving downwards.