CN219540897U - Screening plant is used in concrete production - Google Patents

Abstract

The utility model relates to a screening device for concrete production, which belongs to the technical field of cement production and comprises a screening box, wherein two oppositely arranged screens are arranged in the screening box, the screens can vibrate along the length direction of the screening box to screen raw materials, a vibrating device for vibrating the screens is arranged in the screening box, one ends of the screens, which are relatively far away, are rotatably arranged on the screening box, a driving device for driving the screens to rotate is arranged in the screening box, a fixing assembly is arranged between the two screens, the two screens are fixed together by the fixing assembly when the two screens are in a horizontal position, a telescopic receiving plate is arranged at the bottom of the screens, and the screens can contact with the telescopic receiving plate and shorten the telescopic receiving plate when rotating; the large-particle material and the small-particle material are completely separated at one time, the screening effect is good, the screen is driven to rotate through the driving device, the telescopic material receiving plate is contracted when the screen rotates, the screen is prevented from being influenced, and the large-particle material on the screen is poured out.

Description

Screening plant is used in concrete production

Technical Field

The utility model belongs to the technical field of concrete production, and particularly relates to a screening device for concrete production.

Background

The concrete, which is called concrete for short, refers to a common name of engineering composite materials which are formed by cementing aggregates into a whole by cementing materials, and in the concrete production process, all the raw materials in the concrete need to be screened independently in advance, so that the stable production of the concrete is facilitated.

Aiming at the problems, the Chinese patent application with the authority of bulletin number of CN216368152U discloses a multistage screening device for concrete mortar production, which comprises an equipment box body and a conveyor belt, wherein the conveyor belt is positioned at the position, close to the left side, of the top of the equipment box body, a feeding port is inserted in the position, close to the center, of the top of the equipment box body, a second storage tank is fixedly connected to the position, close to the bottom, of the left side of the equipment box body, a first storage tank is fixedly connected to the position, close to the center, of the bottom of an inner cavity of the equipment box body, a third storage tank is fixedly connected to the positions, close to the left side and the right side, of the top of the equipment box body, baffle plates are fixedly connected to the positions, through mutual matching among all the components, so that the equipment has strong linkage performance, good crushing effect, synchronous linkage effect among all the components is good, concrete and residues with different sizes can be separated and stored when screening is carried out, the separation effect is good, and the workload is reduced for later processing and production.

But above-mentioned technical scheme sieves the concrete through setting up the screen cloth of slope, if inclination is less, and the great raw materials of particle diameter can not roll from the screen cloth on the screen cloth, if screen cloth inclination is great, the screen cloth comes not to sieve this moment, and the raw materials that particle diameter is less probably also directly falls down from the screen cloth, and then leads to the screen cloth effect not good.

Disclosure of Invention

The utility model aims to provide a screening device for concrete production, which solves the problem that the screening effect of the screening device for concrete production in the prior art is poor.

The technical scheme of the utility model is as follows:

the utility model provides a screening plant is used in concrete production, including screening case, install the screen cloth of two relative settings in the screening case, the screen cloth can vibrate in order to sieve the raw materials along the length direction of screening case, the vibrating device who makes the screen vibration is installed to the screening powder incasement, the one end rotation that keeps away from relatively of screen cloth sets up on the screening case, install in the screening case and be used for driving screen cloth pivoted drive arrangement, install fixed subassembly between two screen cloth, fixed subassembly is together two screen cloth when two screen cloth are in horizontal position, the telescopic receiving plate is installed to the bottom of screen cloth, can contact with telescopic receiving plate and make telescopic receiving plate shorten when the screen cloth rotates.

Further, the screen cloth is fixedly provided with a sliding block, the screening box is provided with a sliding groove, the sliding block is arranged in the sliding groove in a sliding mode, the vibrating device is a telescopic cylinder, the telescopic end of the telescopic cylinder is fixedly arranged on the sliding block, and the telescopic direction of the telescopic cylinder is the same as the sliding direction of the sliding block in the sliding groove.

Further, flexible flitch that connects includes fixed plate and slides the sliding plate that sets up on the fixed plate, install elastic component between fixed plate and the sliding plate.

Further, the elastic component is including fixed sleeve that sets up on the fixed plate, slide in the sleeve and be provided with the movable rod of fixed setting on the sliding plate, install the spring between movable rod and the sleeve.

Further, drive arrangement includes electric telescopic handle, electric telescopic handle's expansion end is connected with the connecting rope, and the other end of connecting rope is fixed on the screen cloth rotate on the spout and be provided with the axis of rotation, the screen cloth is fixed to be set up in the axis of rotation, install the torsional spring between screen cloth and the spout.

Further, the fixing assembly comprises a first magnetic member fixedly arranged at the bottom of one screen and a second magnetic member fixedly arranged at the bottom of the other screen.

Further, baffles are arranged around the combined body formed by combining the two screens.

Further, baffles are arranged around the combined body formed by combining the two screens.

The beneficial effects of the utility model are as follows:

when sieving concrete raw materials, throw into two screens with the raw materials and sieve, after the raw materials that the granule is less falls on the flexible flitch that connects of below, can once separate big granule material and granule material completely, it is effectual to sieve, drive the screen cloth through drive arrangement and rotate, make flexible flitch shrink when the screen cloth rotates avoid influencing the rotation of screen cloth, after the great material of granule on the screen cloth pours out, make the screen cloth resume horizontal position and continue to sieve under vibrating device's effect through the torsional spring.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of an embodiment of the present utility model.

Fig. 2 is a schematic view of the internal structure of an embodiment of the present utility model.

Fig. 3 is a schematic view of the structure of another view of the interior of the embodiment of the present utility model.

Fig. 4 is a schematic structural diagram of a driving device according to an embodiment of the present utility model.

FIG. 5 is a schematic view of the structure of the elastic member according to the embodiment of the present utility model.

In the figure: 1. a screening box; 2. a screen; 21. a baffle; 22. a slide block; 23. a chute; 3. a driving device; 31. an electric telescopic rod; 32. a connecting rope; 33. a torsion spring; 4. a fixing assembly; 41. a first magnetic member; 42. a second magnetic member; 5. a telescopic receiving plate; 51. a fixing plate; 52. a sliding plate; 53. an elastic component; 531. a sleeve; 532. a movable rod; 533. a spring; 6. a vibration device; 7. and (5) receiving a material box.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

As shown in figures 1-5, a screening plant for concrete production, including screening case 1, install two screens 2 of relative setting in the screening case 1, screen 2 can vibrate along screening case 1's length direction in order to sieve the raw materials, install the vibrating device 6 that makes screen 2 vibrate in the screening case 1, the one end that screen 2 kept away from relatively rotates and sets up on screening case 1, install in screening case 1 and be used for driving screen 2 pivoted drive arrangement 3, install fixed subassembly 4 between two screens 2, fixed subassembly 4 is in the same place two screens 2 with two screens 2 fixed when two screens 2 are in horizontal position, telescopic material receiving plate 5 is installed to the bottom of screen 2, can contact with telescopic material receiving plate 5 and make telescopic material receiving plate 5 shorten when screen 2 rotates.

The screen 2 is driven to vibrate by the vibration device 6 so as to screen the materials, and the materials are always in a horizontal state in the screening process until the materials on the screen 2 are completely distinguished, that is, the materials with smaller particles fall from the screen 2. After the materials with larger particles are left on the screen cloth 2, the screen cloth 2 is driven to rotate through the driving device 3, one end of the screen cloth 2 deflects downwards to enable the materials with larger particles on the screen cloth 2 to fall down, then the screen cloth is reset under the action of the driving device 3, the two screen cloths are in a horizontal state continuously, the two screen cloths 2 are fixed together through the fixing component 4, and the vibration device 6 drives the screen cloth 2 to vibrate and can continue screening work.

In this embodiment, baffles 21 are installed around the combined body formed by combining two screens 2 to avoid the material falling during screening after falling onto the screens 2.

As shown in fig. 1, in this embodiment, a sliding block 22 is fixedly arranged on the screen 2, a sliding groove 23 is formed on the screening box 1, the sliding block 22 is slidably arranged in the sliding groove 23, preferably, the vibration device 6 is a telescopic cylinder, the telescopic end of the telescopic cylinder is fixedly arranged on the sliding block 22, and the telescopic direction of the telescopic cylinder is the same as the sliding direction of the sliding block 22 in the sliding groove 23; the sliding block 22 is driven to slide back and forth in the sliding groove 23 through back and forth expansion of the expansion cylinder, so that the vibration effect of the screen 2 is formed, and the material is screened through the vibration of the screen 2.

As shown in fig. 3, the telescopic receiving plate 5 comprises a fixed plate 51 and a sliding plate 52 which is arranged on the fixed plate 51 in a sliding manner, an elastic component 53 is arranged between the fixed plate 51 and the sliding plate 52, and the telescopic receiving plate 5 is arranged obliquely upwards from one end to the discharging end; the material falls onto the telescopic receiving plate 5 automatically when it is screened off the screen 2, contacts the sliding plate 52 when the screen 2 rotates and presses the sliding plate 52 to slide the sliding plate 52 on the fixed plate 51, i.e. the length of the telescopic receiving plate 5 is shortened at this time, and the large-particle material on the screen 2 can fall off the screen 2.

Preferably, a material receiving box 7 is arranged below the telescopic material receiving plate 5; when the screen cloth 2 rotates, the materials on the screen cloth 2 can be poured into the material receiving box 7 for collection.

The length of the telescopic receiving plate 5 is such that it can catch substantially all of the material with smaller particles falling on the screen 2, and thus distinguish the material with larger particles from the material with smaller particles.

As shown in fig. 5, preferably, the elastic member 53 includes a sleeve 531 fixedly provided on the fixed plate 51, a movable rod 532 fixedly provided on the sliding plate 52 is slidably provided in the sleeve 531, and a spring 533 is installed between the movable rod 532 and the sleeve 531; when the screen 2 rotates and presses the sliding rod 52, the spring 533 is contracted, and when the screen 2 returns to the horizontal position, the spring 533 drives the movable rod 532 to reset, and further drives the sliding plate 52 to reset, and the telescopic receiving plate 5 is extended and continues receiving.

The driving device 3 comprises an electric telescopic rod 31, a connecting rope 32 is connected to the movable end of the electric telescopic rod 31, the other end of the connecting rope 32 is fixed on the screen 2, a rotating shaft is rotatably arranged on the sliding chute 23, the screen 2 is fixedly arranged on the rotating shaft, and a torsion spring 33 is arranged between the screen 2 and the sliding chute 23; when the electric telescopic rod 31 drives the screen 2 to rotate, the screen 2 rotates by taking the rotating shaft as the rotating shaft, the connecting rope 32 is in a tightening state at the moment, and when the screen 2 is in a horizontal position, the connecting rope 32 is in a loosening state, so that the vibrating device 6 drives the screen 2 to vibrate to leave a displacement allowance.

In other embodiments, the connecting cord 32 may be a flexible connection such as a connecting chain.

The fixing assembly 4 comprises a first magnetic member 41 fixedly arranged at the bottom of one screen 2 and a second magnetic member 42 fixedly arranged at the bottom of the other screen 2; when the two screens 2 are in the horizontal position, the two screens 2 are fixed as one body by the mutual attraction of the first magnetic member 41 and the second magnetic member 42.

The specific working principle is as follows: when the concrete raw materials are screened, the raw materials are put into two screens 2 for screening until the raw materials with smaller particles fall on the telescopic receiving plates 5 below, the screens 2 are driven to rotate by the driving device 3, the telescopic receiving plates 5 are contracted to avoid influencing the rotation of the screens 2 when the screens 2 rotate, and after the materials with larger particles on the screens 2 are poured out, the screens 2 are restored to the horizontal position through the torsion springs 33 and continue screening under the action of the vibration device 6.

Claims (8)

1. A screening device for concrete production, comprising:

a screening box (1);

two screens (2) are arranged along the length direction of the screening box (1), and the two screens (2) can rotate along one side away from each other;

the fixing assembly (4) is arranged between the two screens (2) and is used for fixing the two screens (2) together when the two screens (2) are in the horizontal position;

the driving device (3) is used for driving the two screens (2) to rotate;

the telescopic material receiving plate (5) is positioned at the bottom of the screen (2) and is obliquely upwards arranged from one end, away from each other, of the screen (2) to the other end, and when the screen (2) rotates downwards, the telescopic material receiving plate can be abutted with the movable end of the telescopic material receiving plate (5);

and the vibration device (6) is arranged in the screening box (1) and used for driving the screen (2) to vibrate so as to screen the concrete raw materials.

2. A screening device for concrete production according to claim 1, wherein: the screen cloth (2) is fixedly provided with a sliding block (22), a sliding groove (23) is formed in the screening box (1), the sliding block (22) is arranged in the sliding groove (23) in a sliding mode, the vibrating device (6) is a telescopic cylinder, the telescopic end of the telescopic cylinder is fixedly arranged on the sliding block (22), and the telescopic direction of the telescopic cylinder is the same as the sliding direction of the sliding block (22) in the sliding groove (23).

3. A screening device for concrete production according to claim 1, wherein: the telescopic receiving plate (5) comprises a fixed plate (51) and a sliding plate (52) arranged on the fixed plate (51) in a sliding mode, and an elastic assembly (53) is arranged between the fixed plate (51) and the sliding plate (52).

4. A screening device for concrete production according to claim 3, wherein: the elastic component (53) comprises a sleeve (531) fixedly arranged on the fixed plate (51), a movable rod (532) fixedly arranged on the sliding plate (52) is arranged in the sleeve (531) in a sliding mode, and a spring (533) is arranged between the movable rod (532) and the sleeve (531).

5. A screening device for concrete production according to claim 2, characterized in that: the driving device (3) comprises an electric telescopic rod (31), a connecting rope (32) is connected to the movable end of the electric telescopic rod (31), the other end of the connecting rope (32) is fixed on the screen (2), a rotating shaft is rotatably arranged on the sliding groove (23), the screen (2) is fixedly arranged on the rotating shaft, and a torsion spring (33) is arranged between the screen (2) and the sliding groove (23).

6. A screening device for concrete production according to claim 1, wherein: the fixing component (4) comprises a first magnetic part (41) fixedly arranged at the bottom of one screen (2) and a second magnetic part (42) fixedly arranged at the bottom of the other screen (2), and the first magnetic part (41) and the second magnetic part (42) are attracted to each other.

7. A screening device for concrete production according to claim 1, wherein: baffle plates (21) are arranged around the combined body formed by combining the two screens (2).

8. A screening device for concrete production according to any one of claims 1-7, characterized in that: a material receiving box (7) is arranged below the telescopic material receiving plate (5).