CN220716169U - Pre-screening mechanism for construction waste crushing - Google Patents

Abstract

The utility model discloses a pre-screening mechanism for crushing construction waste, which comprises a pre-screening mechanism and is characterized in that: the utility model provides a screening mechanism, including the roller bearing, evenly arrange on the roller bearing and install a plurality of limiting plate, same row the interval of limiting plate is the same, the roller bearing left side is provided with the feeding slope, the roller bearing bottom is provided with the opening, the opening below is provided with the conveying mechanism who is used for carrying the material, the roller bearing right side is provided with the guide board for carry the material guide that the limiting plate carried get into the jaw breaker and carry out the breakage, through the screening effect of the limiting plate of evenly arranging on the roller bearing, make the less material of volume pass through the clearance between the limiting plate, fall on conveying mechanism from the opening part, the great material of volume is under the drive of limiting plate, follow the roller bearing rotation and reach on the guide board to carry out the breakage in the guiding of guide board under the slip jaw breaker, reduced the loss of jaw breaker through the screening in advance, improved production efficiency.

Description

Pre-screening mechanism for construction waste crushing

Technical Field

The utility model relates to the technical field of construction waste crushing and recycling, in particular to a pre-screening mechanism for construction waste crushing.

Background

When the building is dismantled, a large amount of building rubbish is generated, and aggregate capable of being secondarily utilized can be obtained after the building rubbish is crushed and screened, wherein the crushing process is divided into coarse crushing, medium crushing and fine crushing, the granularity of materials is gradually reduced so as to reach the usable range, materials with different sizes are mixed together in the building rubbish just recovered, some materials have larger volumes, the materials are required to be crushed roughly by a jaw crusher and then are sent into a cone crusher for medium crushing and fine crushing, and some materials with smaller volumes, which can not be processed by the jaw crusher, are sent into the jaw crusher, so that the production efficiency is influenced, the loss of the jaw crusher is increased, and the service life of jaw pages of the jaw crusher is shortened.

Disclosure of Invention

The utility model aims to provide a pre-screening mechanism for crushing construction waste, which is used for pre-screening the recovered construction waste, pre-screening materials with smaller volumes, and skipping the rough crushing link of a jaw crusher so as to solve the problems in the prior art.

In order to achieve the above purpose, the utility model provides the following technical scheme, a pre-screening mechanism for crushing construction waste, comprising a pre-screening mechanism, and characterized in that: the pre-screening mechanism comprises a rolling shaft, a plurality of limiting plates are uniformly arranged and mounted on the rolling shaft, the spacing between the limiting plates in the same row is the same, a feeding slope is arranged on the left side of the rolling shaft, an opening is arranged at the bottom of the rolling shaft, a conveying mechanism for conveying materials is arranged below the opening, and a guide plate is arranged on the right side of the rolling shaft and used for guiding the materials conveyed by the limiting plates into a jaw crusher for crushing.

Preferably, the roller is rotatably arranged in the pre-screening mechanism and is connected with an external motor, and the external motor drives the roller to rotate.

Preferably, the conveying mechanism is positioned below the discharge port of the jaw crusher, and is used for receiving and conveying materials crushed by the jaw crusher.

Preferably, one end of the guide plate, which is close to the rolling shaft, is toothed, and the position of the protruding tooth block of the guide plate is matched with a gap between the limiting plates, so that the guide plate is used for guiding materials and preventing the materials from being clamped in the gap between the limiting plates.

Compared with the prior art, the utility model has the beneficial effects that: through the screening effect of the limiting plates uniformly arranged on the rolling shafts, the materials with smaller volumes fall onto the conveying mechanism from the openings through gaps among the limiting plates, the materials with larger volumes are driven by the limiting plates to rotationally reach the guide plates along with the rolling shafts, and the materials are guided by the guide plates to slide into the jaw crusher for crushing, so that the loss of the jaw crusher is reduced through pre-screening, and the production efficiency is improved.

Drawings

FIG. 1 is a front cross-sectional view of the present utility model;

fig. 2 is a schematic diagram of the positional relationship between the limiting plate and the guiding plate according to the present utility model.

In the figure: 1 a pre-screening mechanism, 2 rollers, 3 limiting plates, 4 guide plates, 5 openings, 6 jaw crushers, 7 conveying mechanisms and 8 feeding slopes.

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.

Referring to fig. 1-2, a pre-screening mechanism for crushing construction waste comprises a pre-screening mechanism 1, and is characterized in that: the pre-screening mechanism 1 comprises a roller 2, a plurality of limiting plates 3 are uniformly arranged and installed on the roller 2, the spacing between the limiting plates 3 in the same row is the same, a feeding slope 8 is arranged on the left side of the roller 2, an opening 5 is arranged at the bottom of the roller 2, a conveying mechanism 7 for conveying materials is arranged below the opening 5, a guide plate 4 is arranged on the right side of the roller 2, and the materials conveyed by the limiting plates 3 are guided into a jaw crusher 6 for crushing.

The roller 2 is rotatably arranged in the pre-screening mechanism 1 and is connected with an external motor, and the roller is driven to rotate by the external motor.

The conveying mechanism 7 is positioned below the discharge port of the jaw crusher 6 and used for receiving and conveying materials crushed by the jaw crusher 6.

The guide plate 4 is in a tooth shape near one end of the roller 2, the position of the protruding tooth block of the guide plate is matched with the gap between the limiting plates 3, and the guide plate is used for guiding materials and preventing the materials from being clamped in the gap between the limiting plates 3.

When the device is used, construction waste slides downwards onto the limiting plate 3 along the feeding slope 8, the external motor is controlled to drive the roller 2 to rotate, the limiting plate 3 rotates along the roller 2, small-size materials pass through a gap between the limiting plates 3 and slide downwards to the opening 5, the small-size materials fall onto the conveying mechanism 7 from the opening 5, the conveying mechanism 7 conveys the materials into the crusher of the middle crushing link, the large-size materials rotate along the limiting plate 3 and fall onto the guide plate 4 under the driving of the limiting plate 3, the crushed materials fall onto the conveying mechanism after sliding into the jaw crusher along the guide plate 4, and the conveying mechanism 7 conveys the materials into the crusher of the middle crushing link.

The orientation or positional relationship shown in the drawings is for convenience of description and simplicity of description only, and is not intended to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (4)

1. The utility model provides a broken pre-screening mechanism of using of building rubbish, includes pre-screening mechanism (1), its characterized in that: the utility model provides a pre-screening mechanism (1) is including roller (2), evenly arrange on roller (2) and install a plurality of limiting plate (3), same row spacing of limiting plate (3) is the same, roller (2) left side is provided with feeding slope (8), roller (2) bottom is provided with opening (5), opening (5) below is provided with conveying mechanism (7) that are used for carrying the material, roller (2) right side is provided with guide board (4) for carry the material guide that limiting plate (3) carried get into in jaw breaker (6) and carry out the breakage.

2. The pre-screening mechanism for crushing construction waste according to claim 1, wherein: the roller (2) is rotatably arranged in the pre-screening mechanism (1) and is connected with an external motor, and the external motor drives the roller to rotate.

3. The pre-screening mechanism for crushing construction waste according to claim 1, wherein: the conveying mechanism (7) is positioned below the discharge port of the jaw crusher (6) and used for receiving and conveying materials crushed by the jaw crusher (6).

4. The pre-screening mechanism for crushing construction waste according to claim 1, wherein: one end of the guide plate (4) close to the rolling shaft (2) is toothed, and the position of the protruding tooth block is matched with a gap between the limiting plates (3) so as to guide materials and prevent the materials from being clamped in the gap between the limiting plates (3).