CN216261889U - Multistage screening plant of raw materials for cement mortar production - Google Patents

Abstract

The utility model discloses a raw material multistage screening device for cement mortar production, which relates to the field of building raw material screening, and aims to solve the problem that the existing building raw materials cannot effectively screen different particles of building raw materials due to single-stage screening during production and processing. The multi-stage screening device is novel in structure, can be used for carrying out multi-stage screening treatment on the building raw materials, can obtain the building raw materials with approximately consistent particle sizes compared with the traditional single-stage screening, and improves the screening efficiency of the device on the building raw materials.

Description

Multistage screening plant of raw materials for cement mortar production

Technical Field

The utility model relates to the field of building raw material screening, in particular to a raw material multi-stage screening device for cement mortar production.

Background

Building raw materials all need sieve it before using for the concrete ratio of different intensity mixes, and current screening operation generally only passes through single-stage screening, thereby leads to its unable comparatively effectual screening to go out the building raw materials of different particle sizes, thereby causes the unable appointed intensity that reaches of concrete after its ratio mixes, consequently, in order to solve this type of problem, we have proposed a raw materials multi-stage screening device for cement mortar production.

SUMMERY OF THE UTILITY MODEL

The utility model provides a raw material multi-stage screening device for cement mortar production, which solves the problem that the existing building raw materials can not effectively screen different particles of building raw materials due to single-stage screening only during production and processing.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a raw material multi-stage screening device for cement mortar production comprises a screening box, wherein the screening box is a hollow cuboid-shaped arrangement which is vertically communicated, a second screen plate and two first screen plates with the same structure are slidably mounted inside the screening box, the second screen plate is positioned between the two first screen plates, two rack plates which are symmetrically distributed are fixedly connected to the bottom ends of the first screen plates and the bottom end of the second screen plate, a second rotating rod and two first rotating rods with the same structure are rotatably mounted on the inner wall of the screening box, the second rotating rod is positioned between the two first rotating rods, the two first rotating rods and the second rotating rod are positioned in the same vertical plane, two first driving discs which are symmetrically distributed are fixedly sleeved on a rod body of the first rotating rod, and two second driving discs which are symmetrically distributed are fixedly sleeved on a rod body of the second rotating rod, one side of first sieve and second sieve all with be connected with the spring post between the inner wall of screening case, two first discharge gates that are the symmetric distribution are seted up to one side of screening case, just the second discharge gate has been seted up to the other one side of screening case, and the second discharge gate is located two between the first discharge gate, the front of screening case be equipped with first dwang and second dwang complex actuating mechanism.

As preferred, actuating mechanism includes gear motor, first sprocket, second sprocket, chain, driven gear and drive gear, the positive fixed mounting of screening case has gear motor, just gear motor's output shaft and one of them the tip fixed connection of first pivot pole, two the tip of first pivot pole all extends to the first sprocket of the outside fixedly connected with of screening case, the coaxial synchronous rotation in front of screening case installs second sprocket and drive gear, just drive gear is located between screening case and the second sprocket, the second sprocket is located between two first sprockets, and is connected with the chain between first sprocket and the second sprocket, the second pivot pole is close to the positive one end of screening case and extends to its outside fixedly connected with driven gear, just drive gear and driven gear mesh.

As preferred, the equal fixedly connected with limiting plate in both sides of first sieve and second sieve, three spacing grooves along its direction of height equidistant distribution are all seted up to screening case positive and negative both sides inner wall, just limiting plate slidable mounting is in the spacing inslot portion.

Preferably, the first discharge port and the second discharge port are internally provided with a blanking hopper, and the blanking hoppers are respectively positioned below the corresponding first sieve plate and the corresponding second sieve plate.

Preferably, the top ends of the first sieve plate and the second sieve plate are both obliquely arranged, and the oblique directions of the first sieve plate and the second sieve plate are opposite.

Preferably, the screening case is close to two first baffles that are the symmetric distribution of one side inner wall fixedly connected with of second discharge gate, the screening case is close to one side inner wall fixedly connected with second baffle of first discharge gate, just first baffle and second baffle are located the top rather than the first sieve and the second sieve that correspond each other respectively, first baffle and second baffle all are the slope setting, and the direction of slope is opposite.

Preferably, the half of the circumferential side wall of the first driving disk and the half of the circumferential side wall of the second driving disk are both provided with driving toothed blocks, the first driving disk and the second driving disk are both meshed with the corresponding rack plates, and the driving toothed blocks on the first driving disk and the driving toothed blocks on the second driving disk are distributed in a staggered manner.

The utility model has the beneficial effects that:

drive the rotation of first sprocket through gear motor, thereby can drive the rotation of second sprocket through the chain, order about drive gear through the second sprocket and drive driven gear and rotate, then drive first dwang through first sprocket and rotate, driven gear drives the second dwang and rotates, the rethread first dwang, the second dwang drives first driving-disc, the second driving-disc rotates, thereby can make and drive corresponding sieve motion with first driving-disc and second driving-disc complex rack board, and the cooperation through the spring post can make the sieve be reciprocating motion, realize the multistage screening processing to building raw materials, obtain the building raw materials of granule size unanimity, the screening efficiency of effectual improvement building raw materials.

Drawings

FIG. 1 is a schematic structural view of a multistage sieving device for cement mortar production raw materials according to the present invention;

FIG. 2 is a schematic structural view of the multistage sieving device for cement mortar production raw materials of the present invention, with a reduction motor, a sprocket and a chain removed, in FIG. 1;

FIG. 3 is a sectional view showing the internal structure of a multistage sieving apparatus for cement mortar production raw materials according to the present invention;

fig. 4 is an enlarged structural view of a in fig. 3 of a multistage sieving apparatus for a raw material for cement mortar production according to the present invention.

Reference numbers in the figures: 1. screening the box; 2. a reduction motor; 3. a first sprocket; 4. a second sprocket; 5. a chain; 6. feeding a hopper; 7. a driven gear; 8. a drive gear; 9. a first rotating lever; 10. a first screen deck; 11. a rack plate; 12. a limiting plate; 13. a spring post; 14. a first drive disk; 15. a second rotating lever; 16. a second drive disc; 17. a limiting groove; 18. a second screen deck; 19. a first baffle plate; 20. a second baffle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1, 3 and 4, a raw material multi-stage screening device for cement mortar production comprises a screening box 1, wherein the screening box 1 is arranged in a hollow cuboid shape which is through from top to bottom, a second screen plate 18 and two first screen plates 10 with the same structure are slidably mounted in the screening box 1, two sides of each of the first screen plates 10 and the second screen plates 18 are fixedly connected with limiting plates 12, the inner walls of two sides of the front side and the back side of the screening box 1 are respectively provided with three limiting grooves 17 which are distributed at equal intervals along the height direction of the screening box, the limiting plates 12 are slidably mounted in the limiting grooves 17, the second screen plate 18 is positioned between the two first screen plates 10, the bottom ends of the first screen plates 10 and the second screen plates 18 are respectively fixedly connected with two rack plates 11 which are symmetrically distributed, a second rotating rod 15 and two first rotating rods 9 with the same structure are rotatably mounted on the inner wall of the screening box 1, and the second rotating rod 15 is positioned between the two first rotating rods 9, two first rotating rods 9 and two second rotating rods 15 are positioned in the same vertical plane, two first driving disks 14 which are symmetrically distributed are fixedly sleeved on the rod body of the first rotating rod 9, two second driving disks 16 which are symmetrically distributed are fixedly sleeved on the rod body of the second rotating rod 15, driving tooth blocks are respectively arranged on one half of the circumferential side wall of each first driving disk 14 and one half of the circumferential side wall of each second driving disk 16, the first driving disk 14 and the second driving disk 16 are respectively meshed with the rack plates 11 which correspond to each other, the driving tooth blocks on the first driving disk 14 and the driving tooth blocks on the second driving disk 16 are distributed in a staggered manner, spring columns 13 are respectively connected between one sides of the first sieve plate 10 and the second sieve plate 18 and the inner wall of the sieving box 1, two first discharge ports which are symmetrically distributed are arranged on one side of the sieving box 1, and a second discharge port is arranged on the other side of the sieving box 1, the second discharge port is located between the two first discharge ports, and the front face of the screening box 1 is provided with a driving mechanism matched with the first rotating rod 9 and the second rotating rod 15.

Referring to fig. 1 and 2, the driving mechanism includes a reduction motor 2, a first sprocket 3, a second sprocket 4, a chain 5, a driven gear 7 and a driving gear 8, the reduction motor 2 is fixedly installed on the front surface of the screening box 1, the output shaft of the gear motor 2 is fixedly connected with the end part of one of the first rotating rods 9, the end parts of the two first rotating rods 9 extend to the outside of the screening box 1 and are fixedly connected with a first chain wheel 3, the front surface of the screening box 1 is coaxially and synchronously rotatably provided with a second chain wheel 4 and a driving gear 8, and the driving gear 8 is positioned between the screening box 1 and the second chain wheel 4, the second chain wheel 4 is positioned between the two first chain wheels 3, and a chain 5 is connected between the first chain wheel 3 and the second chain wheel 4, one end of the second rotating rod 15, which is close to the front surface of the screening box 1, extends to the outside of the screening box and is fixedly connected with a driven gear 7, and the driving gear 8 is meshed with the driven gear 7.

Referring to fig. 3 and 4, all install down hopper 6 in first discharge gate and the second discharge gate, and down hopper 6 is located the below rather than first sieve 10 and the second sieve 18 that correspond respectively, the top of first sieve 10 and second sieve 18 all is the slope setting, and the slope opposite direction of first sieve 10 and second sieve 18, one side inner wall fixedly connected with that screening case 1 is close to the second discharge gate is two first baffles 19 that are symmetric distribution, one side inner wall fixedly connected with second baffle 20 that screening case 1 is close to first discharge gate, and first baffle 19 and second baffle 20 are located the top rather than first sieve 10 and the second sieve 18 that correspond each other respectively, first baffle 19 and second baffle 20 all are the slope setting, and the slope opposite direction.

When the device is used, building raw materials are guided into a screening box 1 through an opening at the top end of the building raw materials, then a speed reduction motor 2 is started to drive a first chain wheel 3 to rotate, so that a second chain wheel 4 can rotate through the driving of a chain 5, the second chain wheel 4 drives a driving gear 8 to rotate, the driving gear 8 drives a driven gear 7 to rotate, the first chain wheel 3 drives a first rotating rod 9 to rotate, the driven gear 7 drives a second rotating rod 15 to rotate, so that a first driving disc 14 and a second driving disc 16 on the first rotating rod 9 and the second rotating rod 15 respectively drive rack plates 11 corresponding to the rack plates to move, the rack plates 11 drive a first screening plate 10 and a second screening plate 18 corresponding to the rack plates to horizontally move, and simultaneously extrude spring columns 13, when driving tooth blocks on the first driving disc 14 and the second driving disc 16 are separated from tooth blocks on the rack plates 11, the spring columns 13 reversely push the first screening plate 10 and the second screening plate 18 to reversely move, therefore, the first sieve plate 10 and the second sieve plate 18 can reciprocate to carry out multi-stage sieving treatment on the building raw materials, and the sieved large-particle building raw materials roll to the interior of the blanking hopper 6 along with the inclined surfaces of the first sieve plate 10 and the second sieve plate 18 and are led out of the sieving box 1 through the blanking hopper 6.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims (7)

1. The utility model provides a raw materials multi-stage screening device for cement mortar production, includes screening case (1), its characterized in that, the setting of cavity cuboid form that screening case (1) is link up from top to bottom, just the inside slidable mounting of screening case (1) has second sieve (18) and two first sieve (10) that the structure is the same, just second sieve (18) are located two between first sieve (10), the bottom of first sieve (10) and second sieve (18) all fixedly connected with two rack plates (11) that are the symmetric distribution, the inner wall of screening case (1) is rotated and is installed second dwang (15) and two first dwang (9) that the structure is the same, and second dwang (15) are located two between first dwang (9), and two first dwang (9) with second dwang (15) are located same vertical plane, the fixed first driving-disc (14) that has cup jointed two and be symmetric distribution of the body of rod of first dwang (9), just it has two second driving-discs (16) that are symmetric distribution to fix the cover on the body of rod of second dwang (15), all with the inner wall of screening case (1) one side of first sieve (10) and second sieve (18) between be connected with spring post (13), two first discharge gates that are symmetric distribution are seted up to one side of screening case (1), just the second discharge gate has been seted up to the other one side of screening case (1), and the second discharge gate is located two between the first discharge gate, the front of screening case (1) is equipped with first dwang (9) and second dwang (15) complex actuating mechanism.

2. The raw material multi-stage screening device for cement mortar production according to claim 1, wherein the driving mechanism comprises a speed reduction motor (2), a first chain wheel (3), a second chain wheel (4), a chain (5), a driven gear (7) and a driving gear (8), the speed reduction motor (2) is fixedly installed on the front surface of the screening box (1), an output shaft of the speed reduction motor (2) is fixedly connected with the end part of one of the first rotating rods (9), the end parts of the two first rotating rods (9) extend to the outside of the screening box (1) and are fixedly connected with the first chain wheel (3), the second chain wheel (4) and the driving gear (8) are coaxially and synchronously installed on the front surface of the screening box (1), and the driving gear (8) is located between the screening box (1) and the second chain wheel (4), second sprocket (4) are located between two first sprockets (3), and are connected with chain (5) between first sprocket (3) and second sprocket (4), second dwang (15) are close to the positive one end of screening case (1) and extend to its outside fixedly connected with driven gear (7), just drive gear (8) and driven gear (7) meshing.

3. The multistage screening device for the raw materials for cement mortar production according to claim 1, wherein limiting plates (12) are fixedly connected to both sides of the first screen plate (10) and the second screen plate (18), three limiting grooves (17) are formed in inner walls of both sides of the front and back surfaces of the screening box (1) and are distributed at equal intervals along the height direction of the screening box, and the limiting plates (12) are slidably mounted inside the limiting grooves (17).

4. The multistage screening device for the raw materials for cement mortar production according to claim 1, wherein a blanking hopper (6) is installed in each of the first discharge port and the second discharge port, and the blanking hoppers (6) are respectively positioned below the corresponding first screening plate (10) and the corresponding second screening plate (18).

5. A multistage screening device for raw materials for cement mortar production according to claim 1, wherein the top ends of the first screen plate (10) and the second screen plate (18) are arranged in an inclined manner, and the inclined directions of the first screen plate (10) and the second screen plate (18) are opposite.

6. The multistage screening device for the raw materials for cement mortar production according to claim 1, wherein two first baffles (19) are fixedly connected to the inner wall of one side of the screening box (1) close to the second discharge port and are symmetrically distributed, a second baffle (20) is fixedly connected to the inner wall of one side of the screening box (1) close to the first discharge port, the first baffles (19) and the second baffles (20) are respectively located above the first screening plate (10) and the second screening plate (18) which correspond to the first baffles and the second baffles, and the first baffles (19) and the second baffles (20) are obliquely arranged and are opposite in oblique direction.

7. The multistage screening device for the raw materials for cement mortar production according to claim 1, wherein driving toothed blocks are arranged on one half of the circumferential side wall of the first driving disc (14) and one half of the circumferential side wall of the second driving disc (16), the first driving disc (14) and the second driving disc (16) are meshed with the corresponding rack plates (11), and the driving toothed blocks on the first driving disc (14) and the driving toothed blocks on the second driving disc (16) are distributed in a staggered mode.

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