CN219334914U - Concrete reclaimed material sieving mechanism - Google Patents

Abstract

The utility model discloses a concrete reclaimed material screening device, comprises a shell for discharging the sieved regenerated material; the discharging hopper is used for conveying regenerated materials needing screening into the shell; at least one group of vibrating screen components which are arranged in the shell and vibrate and screen the regenerated material through up-and-down reciprocating vibration; the slag discharge assembly is used for receiving the residual slag after screening and discharging the received slag out of the shell in a vibrating manner; the cleaning assembly is provided with a top plate arranged below the vibrating screen assembly, and ejector rods are uniformly distributed on the top plate along the upper edge; the driving assembly drives the cleaning assembly to reciprocate along the vertical direction and the length direction of the sieve plate, and the ejector rod is ejected into the sieve holes to eject the regenerated materials in the sieve holes. Through above-mentioned scheme, through the reciprocating motion of drive assembly drive clearance subassembly vertical and along sieve length direction in the casing, make the reciprocal jack-up of clearance subassembly in go into in the sieve mesh, with the reclaimed materials ejection that blocks in the sieve mesh, finally play the effect of continuously clearing up the sieve.

Description

Concrete reclaimed material sieving mechanism

Technical Field

The utility model relates to concrete production equipment, in particular to a concrete reclaimed material screening device.

Background

Concrete is one of the most prominent civil engineering materials in the current generation. The artificial stone is prepared from cementing material, granular aggregate (also called aggregate), water, and additives and admixtures added if necessary according to a certain proportion through uniformly stirring, compacting, shaping, curing and hardening. The concrete has the characteristics of rich raw materials, low price and simple production process, so that the consumption of the concrete is increased. Meanwhile, the concrete has the characteristics of high compressive strength, good durability, wide strength grade range and the like. The characteristics lead the application range to be very wide, and the concrete is not only used in various civil engineering, namely shipbuilding industry, mechanical industry, ocean development, geothermal engineering and the like, but also is an important material. The aggregate in the concrete mainly comprises pebbles, broken stones, sand and the like, and the materials are non-renewable consumables in nature, so that the damage to the environment caused by mining the materials is quite large. In response to environmental protection calls, the use of recycled materials (recycled aggregate) has become a trend, the principle of which is to break up the already coagulated concrete and make it into aggregates that meet the required specification. However, the crushed aggregate is not required to be classified by screening so as to be classified for storage. The existing concrete reclaimed material screening device basically has two types, namely a screen drum structure and a screen plate structure. However, the two screening devices have a problem that after long-time screening of aggregate, the aggregate is inevitably blocked in the screen holes to block the screen holes, the screening capability of the screening device is continuously weakened, and the screening device can only be stopped and maintained in the later stage, so that the normal operation of production is affected. In addition, the screening device has a bad internal environment, and workers are inconvenient to enter and maintain.

Disclosure of Invention

In view of the above-mentioned shortcomings, the present utility model aims to provide a screening device for recycled concrete materials, which is used for solving the problem that recycled materials often block sieve holes in production.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

a concrete reclaimed material screening device comprises

A housing having one end opened for discharging the sieved reclaimed material;

the discharging hopper is arranged at the upper part of one side wall of the shell and is used for conveying regenerated materials needing sieving into the shell; at least one group of

The vibrating screen assembly is arranged in the shell and is used for vibrating and screening the reclaimed materials through up-and-down reciprocating vibration;

the slag discharge assembly is arranged at the bottom of the shell and is used for receiving residual slag after screening and discharging the received slag out of the shell in a vibrating manner;

the cleaning assembly is provided with a top plate arranged below the vibrating screen assembly, and ejector rods are uniformly distributed on the top plate along the upper edge;

the driving assembly is in driving connection with the cleaning assembly, and when the vibrating screen assembly is cleaned, the cleaning assembly is driven to reciprocate along the length direction of the vertical and screen plates simultaneously, and the ejector rod ejects into the screen holes to eject regenerated materials in the screen holes.

Preferably, the vibrating screen assembly comprises a screen plate arranged in the shell, the screen plate is obliquely arranged and is higher than the first end of the discharging hopper, which is far away from the first end of the discharging hopper, at least two first telescopic cylinders are respectively arranged on two sides of the screen plate, and are fixedly connected with the shell, and the first telescopic cylinders stretch back and forth to drive the screen plate to vibrate up and down.

Preferably, a first guard plate which is L-shaped is symmetrically arranged on two sides of the sieve plate, and the first guard plate separates the first telescopic cylinder from regenerated materials on the sieve plate.

Preferably, the slag discharging assembly comprises a vibrating plate arranged at the bottom of the shell, one end, close to the feed opening, of the vibrating plate is higher than one end, far away from the feed opening, of the vibrating plate, two sides of the vibrating plate are respectively connected with at least two second telescopic cylinders, the second telescopic cylinders are fixedly connected with the inner wall of the shell, and the second telescopic cylinders stretch back and forth to drive the vibrating plate to vibrate.

Preferably, a second guard plate which is L-shaped is symmetrically arranged on two sides of the vibrating plate, and the second guard plate separates the second telescopic cylinder from regenerated materials on the sieve plate.

Preferably, the driving assembly comprises symmetrical screw rods arranged on two sides of the shell, the screw rods are rotatably erected on the shell, one end of each screw rod is in driving connection with a motor, a nut is screwed on each screw rod, a third telescopic cylinder is fixedly arranged on each nut, and the third telescopic cylinders are in driving connection with two ends of a top plate extending out of the shell through the avoidance grooves.

Preferably, the avoidance groove is also covered with an ash blocking curtain.

Preferably, the top of the shell is also provided with a negative pressure fan so as to timely suck away dust generated during sieving of reclaimed materials.

The beneficial effects are that: 1. after the cleaning component is arranged inside the shell, the cleaning component can be driven by the driving component to vertically reciprocate in the shell along the length direction of the sieve plate, so that the ejector rod in the cleaning component can be ejected into the sieve holes in a reciprocating manner, the reclaimed materials clamped in the sieve holes are ejected out, and the effect of continuously cleaning the sieve plate is finally achieved. 2. Dust generated during sieving of reclaimed materials is sucked away by adopting a negative pressure fan, so that the production cleanliness is ensured. 3. The ash blocking curtain is arranged to enable a large amount of dust to run out of the avoidance groove and be adsorbed on the screw rod in a mode to influence the normal running of the screw rod function.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a cross-sectional view of the present utility model;

fig. 4 is a front view of fig. 1;

fig. 5 is a schematic view of the structure of the vibrating screen assembly and the slag discharge assembly.

Reference numerals: 100. housing 110, relief trough 200, negative pressure fan 300, lower hopper 400, vibrating screen assembly 410, screen plate 420, first telescoping cylinder 430, first shield 500, slag discharge assembly 510, vibrating plate 520, second telescoping cylinder 530, second shield 600, cleaning assembly 610, top plate 620, top bar 700, drive assembly 710, motor 720, screw 730, nut 740, third telescoping cylinder 800, ash curtain.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

A concrete reclaimed material screening apparatus as shown in fig. 1 to 5 comprises a housing 100 having one end opened to facilitate the discharge of the reclaimed material after screening. A negative pressure fan 200 is installed at the top of the housing to suck dust generated when the reclaimed materials are screened, a discharging hopper 300 communicated with the interior of the housing is installed at the upper position of one side wall of the housing, and the reclaimed materials enter the housing through the discharging hopper to be screened in different specifications.

It should be noted that, depending on the desired regrind specification, at least one set of vibrating screen assemblies 400 may be installed in the housing, each set of vibrating screen assemblies being capable of screening out a desired regrind of one specification. Specifically, the vibrating screen assembly 400 includes a screen plate 410, and screen holes with the same specification are uniformly distributed on the screen plate. The screen plate is obliquely arranged, and one end of the screen plate, which is close to the blanking hopper 300, is higher than one end, which is far away from the blanking opening. At least two first telescopic cylinders 420 are respectively arranged on two sides of the screen plate, and are fixedly arranged on the inner wall of the shell 100, and when the reclaimed materials are screened, the first telescopic cylinders on two sides perform uniform reciprocating telescopic operation so as to drive the screen plate to vibrate regularly. In addition, a slag discharging assembly 500 is installed at the bottom of the housing 100, and includes a vibration plate 510 having no holes, which is inclined in the same direction as the screen plate. At least two second telescopic cylinders 520 are respectively arranged on two sides of the vibrating plate, when regenerated material particles with the particle size smaller than the required specification fall on the vibrating plate through the sieve plate, the second telescopic cylinders fixedly arranged on the inner wall of the shell synchronously extend to drive the vibrating plate to regularly vibrate, and slag materials which do not meet the specification are discharged out of the shell.

It should be noted that, in the process of screening the reclaimed materials, the reclaimed materials are inevitably blocked into the sieve holes of the sieve plate, so as to timely clean the reclaimed materials blocked in the sieve holes, keep the smoothness of the sieve holes of the sieve plate 410, and a group of cleaning assemblies 600 are correspondingly installed below each group of vibrating screen assemblies 400. The cleaning assembly has a top plate 610 straddling the housing 100, and a row of ejector pins 620 are uniformly distributed along the top edge of the top plate and are in one-to-one correspondence with the sieve holes on the sieve plate. Meanwhile, an avoidance groove 110 parallel to the sieve plate is formed in the shell, two ends of the top plate penetrate out of the shell through the avoidance groove 110 and are fixedly connected with driving assemblies 700 located on two sides of the shell, and when the sieve plate is cleaned, the driving assemblies 700 drive the top plate to reciprocate along the vertical direction and the length direction of the sieve plate, so that the top rod is jacked into a sieve hole of the sieve plate. Specifically, the driving assembly comprises a third telescopic cylinder 740 fixedly arranged on two sides of the shell, two ends of the top plate are connected to the third telescopic cylinder, and the top rod is driven to pass through the sieve holes of the sieve plate by the reciprocating extension of the third telescopic cylinder, so that the regenerated material clamped in the sieve holes is ejected. Meanwhile, a screw rod 720 parallel to the screen plate 410 is respectively arranged on two sides of the shell, and the screw rod is rotatably connected with the shell. A nut 730 is screwed onto the screw, and a third telescopic cylinder 740 is fixedly mounted on the nut for axial movement with the nut on the screw. And one end of the screw is in driving connection with a motor 710 in order to facilitate the movement of the drive nut on the screw.

When the screen plate needs to be cleaned, the motor 710 is driven by a worker to rotate, the screw rod 720 is driven to synchronously rotate, the nut on the screw rod axially moves along with the rotation of the screw rod, the top plate 610 in the shell is driven to synchronously move in the shell, the top plate moving in the shell is driven by the third telescopic cylinder to move up and down, and the top rod is jacked into the screen holes along with the up and down movement of the top plate so as to eject the regenerated material clamped in the screen holes, so that the cleaning of the screen plate is completed.

As a further improvement of the above embodiment, in order to protect the first telescopic cylinders 420 on both sides of the screen plate 410, the regenerated material is prevented from crushing the first telescopic cylinders, and a first guard plate 430 in an L shape is further installed on both sides of the screen plate, and the first guard plate blocks the first telescopic cylinders from the screen plate, so that the regenerated material on the screen plate is prevented from being crushed on the first telescopic cylinders.

Meanwhile, in order to protect the second telescopic cylinder 520, two second guard plates 530 in an L shape are symmetrically installed at both sides of the vibration plate 510, and separate the second telescopic cylinder 520 at both sides of the vibration plate from the reclaimed material on the vibration plate, so as to prevent the vibration plate and the reclaimed material falling from above from beating on the second telescopic cylinder 520.

In addition, in order to prevent dust in the housing from being ejected out of the avoiding groove 110 of the housing in a large amount during screening and adhering to the screw 720, and further to influence the movement of the nut on the screw, a dust shielding curtain 800 covering the avoiding groove is further mounted on the housing. The ash blocking curtain has certain flexibility so as to cover the third telescopic cylinder in a fitting way when the third telescopic cylinder 740 passes.

Claims (8)

1. The utility model provides a concrete regeneration material sieving mechanism which characterized in that: comprising

A housing (100) having one end open for discharging the sieved reclaimed material;

the discharging hopper (300) is arranged at the upper part of one side wall of the shell (100) and is used for conveying regenerated materials needing sieving into the shell (100); at least one group of

The vibrating screen assembly (400) is arranged in the shell (100) and is used for vibrating and screening the regenerated material through up-and-down reciprocating vibration;

the slag discharge assembly (500) is arranged at the bottom of the shell (100) and is used for receiving the slag left after screening and discharging the received slag out of the shell (100) in a vibrating manner;

the cleaning assembly (600) is provided with a top plate (610) arranged below the vibrating screen assembly (400), and ejector rods (620) are uniformly distributed on the top plate (610);

and the driving assembly (700) is in driving connection with the cleaning assembly (600), and when the vibrating screen assembly (400) is cleaned, the cleaning assembly (600) is driven to reciprocate along the vertical direction and the length direction of the screen plate (410), and the ejector rod (620) ejects the regenerated material in the screen holes into the screen holes.

2. A concrete regeneration screening apparatus according to claim 1, wherein: the vibrating screen assembly (400) comprises a screen plate (410) arranged in the shell (100), the screen plate (410) is obliquely arranged, one end, close to the discharging hopper (300), of the screen plate is higher than the first end, far away from the discharging hopper (300), at least two first telescopic cylinders (420) are respectively arranged on two sides of the screen plate (410), the first telescopic cylinders (420) are fixedly connected with the shell (100), and the first telescopic cylinders (420) stretch back and forth to drive the screen plate (410) to vibrate up and down.

3. A concrete regeneration screening apparatus according to claim 2, wherein: two sides of the sieve plate (410) are symmetrically provided with a first guard plate (430) which is L-shaped, and the first guard plate (430) separates the first telescopic cylinder (420) from regenerated materials on the sieve plate (410).

4. A concrete regeneration screening apparatus according to claim 1, wherein: the slag discharging assembly (500) comprises a vibrating plate (510) arranged at the bottom of the shell (100), one end, close to the feed opening, of the vibrating plate (510) is higher than one end, far away from the feed opening, of the vibrating plate, two sides of the vibrating plate (510) are respectively connected with at least two second telescopic cylinders (520), the second telescopic cylinders (520) are fixedly connected with the inner wall of the shell (100), and the second telescopic cylinders (520) stretch back and forth to drive the vibrating plate (510) to vibrate.

5. A concrete regeneration screening apparatus according to claim 4, wherein: a second guard plate (530) which is L-shaped is symmetrically arranged on two sides of the vibrating plate (510), and the second guard plate (530) separates the second telescopic cylinder (520) from regenerated materials on the sieve plate (410).

6. A concrete regeneration screening apparatus according to claim 1, wherein: the driving assembly (700) comprises screw rods (720) symmetrically arranged on two sides of the shell (100), the screw rods (720) are rotatably erected on the shell (100), one end of each screw rod (720) is in driving connection with a motor (710), nuts (730) are screwed on the screw rods (720), a third telescopic cylinder (740) is fixedly arranged on each nut (730), and the third telescopic cylinder (740) is in driving connection with two ends of a top plate (610) extending out of the shell (100) through the avoidance groove (110).

7. A concrete regeneration screening apparatus according to claim 6, wherein: the avoidance groove (110) is also covered with an ash blocking curtain (800).

8. A concrete regeneration screening apparatus according to claim 1, wherein: the top of the shell (100) is also provided with a negative pressure fan (200) so as to timely suck away dust generated during sieving of reclaimed materials.

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