Construction waste crushing and screening device

Abstract

The utility model relates to the technical field of construction waste recycling, and discloses a construction waste crushing and screening device which comprises a bottom plate, and a pre-crushing assembly is arranged at the left end of the bottom plate; the pre-crushing assembly comprises a crushing box, and an air cylinder is fixedly connected to the top end of the crushing box. According to the construction waste crushing and screening device, large-size construction waste can be effectively crushed, fine classification of waste can be achieved through multi-stage screening, particularly, due to introduction of a magnetic roller, the device can automatically adsorb and separate scrap iron in the waste, the treatment efficiency and the waste recycling value are greatly improved, and the construction waste crushing and screening device is suitable for popularization and application. By arranging the atomizing nozzles and spraying fine water mist to the conveying belt and the crushing area, the dust concentration in the air is effectively reduced, the working environment is improved, pollution to the urban environment is reduced, waste classification of different granularities can be easily achieved through the screening net discs of different mesh numbers, and the diversified waste recovery and treatment requirements are met.

Description

Technical Field

[0001] This application relates to the field of construction waste recycling technology, specifically a construction waste crushing and screening device. Background Technology

[0002] Currently, with the development of the construction industry, a lot of construction waste is also generated. Construction waste refers to the general term for slag, waste concrete, waste bricks and stones and other waste generated by people in the production activities of the construction industry, such as demolition, construction, decoration and repair.

[0003] An existing patent (publication number: CN220004373U) discloses a construction waste crushing and screening device. Addressing the problem that larger pieces of waste require manual handling after screening in existing crushing devices, the following solution is proposed: It includes a crushing box with a first feed inlet fixedly connected to the top and a first discharge outlet fixedly connected to the bottom. A second discharge outlet is provided on one side of the crushing box, and a baffle plate is fixedly installed on the second discharge outlet. A first mounting frame is fixedly connected to the bottom of one side of the crushing box, and a first motor is fixedly installed on the first mounting frame. A first transmission component is provided on the first motor. This invention enables a cycle to be formed with the cooperation of the first and second transmission components, allowing for further crushing of larger pieces of construction waste after initial crushing, and reducing the labor intensity of workers.

[0004] However, construction waste often contains steel bars and scrap iron, and the aforementioned crushing devices cannot screen the scrap iron, resulting in low functionality. Furthermore, the screening and crushing process can easily generate significant dust, impacting the urban environment. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a construction waste crushing and screening device, which has advantages such as multi-stage screening and screening of scrap iron, and solves the problems mentioned in the background technology.

[0006] To achieve the above objectives, this application provides the following technical solution: a construction waste crushing and screening device, comprising a base plate, wherein a pre-crushing component is provided at the left end of the base plate;

[0007] The pre-crushing component includes a crushing box, a cylinder is fixedly connected to the top of the crushing box, a crushing plate is fixedly connected to the output end of the cylinder, and the bottom of the crushing plate and the inner bottom wall of the crushing box are both serrated.

[0008] A conveying assembly is provided above the base plate;

[0009] The conveying assembly comprises a framework, a power roller rotatably connected between the front and rear inner side walls of the left end of the framework, a magnetic roller rotatably connected between the front and rear inner side walls of the right end of the framework, the outer surfaces of the magnetic roller and the power roller are provided with key grooves, a conveying belt is arranged between the magnetic roller and the power roller, the magnetic roller and the power roller are drivingly connected through the conveying belt, the right end of the framework is upwardly inclined, and the left end of the framework is located below the crushing box.

[0010] The upper surface of the bottom plate is provided with a screening assembly at the right end.

[0011] The screening assembly comprises a screening box, the top end of the screening box is funnel-shaped, the top end of the screening box is located below the right end of the framework, two crushing shaft rollers are rotatably connected between the front and rear inner side walls of the top end of the screening box, a plurality of screening mesh discs of different mesh sizes are arranged below the crushing shaft rollers, a group of slide rods are fixedly connected to the left and right inner side walls of each screening mesh disc, each slide rod is slidingly inserted into the screening box, springs are fixedly connected between the left and right inner side walls of each screening mesh disc and the screening box, an extrusion shaft is rotatably connected between the inner top wall and the inner bottom wall of the screening box, and a group of cams are fixedly connected to the outer surface of the extrusion shaft.

[0012] Through the above scheme, the building waste of large size can be effectively crushed, and the waste can be finely classified through multi-stage screening. In particular, the introduction of the magnetic roller enables the device to automatically attract and separate waste iron in the waste, greatly improving the processing efficiency and waste recycling value. By setting the atomizing nozzles, fine water mist is sprayed on the conveying belt and the crushing area, effectively reducing the dust concentration in the air, improving the working environment, reducing the pollution to the urban environment, and easily realizing the classification of waste of different particle sizes through the screening mesh discs of different mesh sizes, meeting the diversified waste recycling and processing requirements.

[0013] Further, the bottom of the crushing box is fixedly connected with a crushing support.

[0014] Through the above scheme, the crushing support can achieve the purpose of supporting the crushing box.

[0015] Further, the bottom of the framework is fixedly connected with a conveying support.

[0016] Through the above scheme, the conveying support can achieve the purpose of supporting the framework.

[0017] Further, the right top end of the conveying support is fixedly connected with a left end of a slide plate which is downwardly inclined, and the right end of the slide plate is located below the magnetic roller.

[0018] Through the above scheme, through the setting of the sliding plate, the waste iron can be supported when it is out of the magnetic range of the magnetic roller, facilitating the downward sliding of the waste iron.

[0019] Further, the upper surface of the frame is fixedly connected with two guard plates.

[0020] Through the above scheme, through the setting of the guard plate, the falling of the conveying belt from both sides of the conveying belt when conveying waste can be avoided.

[0021] Further, the top end of each of the two guard plates is fixedly installed with a spray pipe, and the outer surface of each spray pipe is fixedly connected with a group of upwardly arranged atomizing nozzles.

[0022] Through the above scheme, through the above setting, the purpose of dust setting of the dust generated by crushing and conveying can be achieved.

[0023] Further, the front end of each of the two crushing shaft rollers is fixedly connected with a gear, and the two gears are meshingly connected.

[0024] Through the above scheme, through the setting of the gear, the purpose of opposite rotation of the two crushing shaft rollers can be achieved.

[0025] Further, the front end of the power roller, the top end of the extrusion shaft, and the rear end of the left crushing shaft roller are fixedly connected with the output end of an external motor.

[0026] Through the above scheme, through the above setting, power can be provided for the rotation of the conveying belt, the cam, and the crushing shaft roller.

[0027] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0028] The building waste crushing and screening device can effectively crush large-size building waste, and can also achieve fine classification of waste through multi-stage screening. In particular, the introduction of the magnetic roller enables the device to automatically attract and separate waste iron from the waste, greatly improving the processing efficiency and waste recycling value. Through the setting of the atomizing nozzles, fine water mist is sprayed onto the conveying belt and the crushing area, effectively reducing the dust concentration in the air, improving the working environment, reducing the pollution to the urban environment, and easily realizing the classification of waste with different particle sizes through the screening mesh discs with different mesh sizes, meeting the diversified waste recycling and processing requirements. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a three-dimensional schematic view of the overall structure of the present application;

[0030] Figure 2 It is a pre-breaking assembly structure diagram of the present application;

[0031] Figure 3 Structure diagram of conveying assembly of the present application;

[0032] Figure 4 Structure diagram of screening assembly of the present application.

[0033] In the figure:

[0034] 1, bottom plate; 2, pre-breaking assembly; 201, crushing box; 202, air cylinder; 203, crushing plate; 3, conveying assembly; 301, skeleton; 302, power roller; 303, magnetic roller; 304, conveying belt; 4, screening assembly; 401, screening box; 402, crushing shaft roller; 403, screening mesh disc; 404, sliding rod; 405, spring; 406, extrusion shaft; 407, cam; 5, crushing support; 6, conveying support; 7, sliding plate; 8, guard plate; 9, spray pipe; 10, atomizing nozzle; 11, gear. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0036] Please refer to Figure 1 and Figure 2 The building waste crushing and screening device in the embodiment includes a bottom plate 1, a pre-breaking assembly 2 is arranged at the left end of the bottom plate 1, the pre-breaking assembly 2 includes a crushing box 201, the top end of the crushing box 201 is fixedly connected with an air cylinder 202, the output end of the air cylinder 202 is fixedly connected with a crushing plate 203, the bottom of the crushing plate 203 and the inner bottom wall of the crushing box 201 are both arranged in a sawtooth shape, through the above arrangement, the pre-crushing purpose of the stone block can be realized, the bottom of the crushing box 201 is fixedly connected with a crushing support 5, through the crushing support 5, the supporting purpose of the crushing box 201 can be realized.

[0037] Please refer to Figure 1 and Figure 3The upper side of the bottom plate 1 is provided with a conveying assembly 3, the conveying assembly 3 comprises a framework 301, a power roller 302 is rotationally connected between the front and rear inner side walls of the left end of the framework 301, a magnetic roller 303 is rotationally connected between the front and rear inner side walls of the right end of the framework 301, the outer surfaces of the magnetic roller 303 and the power roller 302 are provided with key grooves, a conveying belt 304 is arranged between the magnetic roller 303 and the power roller 302, the magnetic roller 303 and the power roller 302 are drivingly connected through the conveying belt 304, the above-mentioned structure can convey the stone blocks, and the magnetic roller 303 can adsorb the waste iron in the fertilizer, the right end of the framework 301 is upwardly inclined, the left end of the framework 301 is located below the crushing box 201, the bottom of the framework 301 is fixedly connected with a conveying support 6, and the conveying support 6 can support the framework 301.

[0038] Please refer to Figure 1 and Figure 4 The upper surface of the bottom plate 1 is provided with a screening assembly 4, the screening assembly 4 comprises a screening box 401, the top end of the screening box 401 is funnel-shaped, the top end of the screening box 401 is located below the right end of the framework 301, two crushing shaft rollers 402 are rotationally connected between the front and rear inner side walls of the top end of the screening box 401, a plurality of screening mesh plates 403 with different mesh sizes are arranged below the crushing shaft rollers 402, a group of slide rods 404 are fixedly connected to the left and right inner side walls of each screening mesh plate 403, each slide rod 404 is slidingly inserted into the screening box 401, springs 405 are fixedly connected between each screening mesh plate 403 and the left and right inner side walls of the screening box 401, a squeezing shaft 406 is rotationally connected between the inner top wall and the inner bottom wall of the screening box 401, a group of cams 407 are fixedly connected to the outer surface of the squeezing shaft 406, each cam 407 is in contact with one side of the screening filter disc close to the cam 407, through the above-mentioned structure, the waste material can be crushed and multi-stage screening can be realized.

[0039] Please refer to Figure 1 and Figure 3 The right side top end of the conveying support 6 is fixedly connected with a left end inclined downward sliding plate 7, the right end of the sliding plate 7 is located below the magnetic roller 303, through the arrangement of the sliding plate 7, the waste iron can be received when the waste iron is separated from the magnetic force range of the magnetic roller 303, and the waste iron can slide downward.

[0040] Please refer to Figure 1 and Figure 3The upper surface of the frame 301 is fixedly connected with two guard plates 8, through the arrangement of the guard plates 8, the falling of the conveying belt 304 from both sides of the conveying belt 304 during conveying of the waste can be avoided, the top end of each of the two guard plates 8 is fixedly installed with a spray pipe 9, the outer surface of each spray pipe 9 is fixedly connected with a group of upwardly arranged atomizing nozzles 10, the bottom end of each of the two spray pipes 9 is in communication with a water supply pipeline outside, through the above arrangement, the purpose of dust setting of the dust generated during crushing and conveying can be realized, the front end of each of the two crushing shaft rollers 402 is fixedly connected with a gear 11, the two gears 11 are in meshing connection, through the arrangement of the gears 11, the purpose of opposite rotation of the two crushing shaft rollers 402 can be realized.

[0041] The building waste crushing and screening device in the embodiment can effectively crush large-size building waste, and can also realize fine classification of waste through multi-stage screening. In particular, the introduction of the magnetic roller 303 enables the device to automatically attract and separate waste iron in the waste, greatly improving the processing efficiency and waste recycling value. Through the atomizing nozzles 10, fine water mist is sprayed on the conveying belt 304 and the crushing area, effectively reducing the dust concentration in the air, improving the working environment, and reducing the pollution to the urban environment. Through the screening mesh discs 403 of different mesh sizes, waste classification of different particle sizes can also be easily realized, meeting the diversified waste recycling and processing requirements.

[0042] The working principle of the above embodiment is as follows: after the device is started, large-size building waste is put into the crushing box 201, the cylinder 202 drives the crushing plate 203 to move downward to form a sawtooth-shaped engagement with the inner bottom wall of the crushing box 201, so as to preliminarily crush the building waste to a size suitable for subsequent processing. The pre-crushed building waste falls on the conveying belt 304, the power roller 302 drives the conveying belt 304 to run, and the waste is conveyed to the right end and above. When reaching the right end, the magnetic roller 303 automatically attracts the waste iron in the waste due to its magnetic properties. The non-waste iron waste falls into the inside of the screening box 401 by gravity, and the attracted waste iron reaches the right end below the conveying belt 304 with the conveying belt 304, and falls onto the slide plate 7 when it is out of the attraction range of the magnetic roller 303, realizing the recycling of the waste iron. The waste falls between the two oppositely rotating crushing shaft rollers 402 and is further crushed. The crushed waste falls on the multiple screening mesh discs 403 of different mesh sizes, and the waste of different particle sizes is classified through multi-stage screening of the screening mesh discs 403. The screening mesh discs 403 vibrate under the action of the springs 405 and the cams 407, which helps the waste to be more evenly distributed on the screen, improving the screening efficiency. During the crushing and conveying process, the atomizing nozzles 10 at the top end of the guard plates 8 spray fine water mist, effectively reducing the dust concentration in the air, reducing dust pollution, and improving the working environment.

[0043] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the enclosed claims. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the application can be varied in a multitude of ways. Such alterations, many of which will be apparent to those skilled in the art, can be based on current technology, and as such, this application should not be limited to the particular embodiments described herein, but should be understood to include all embodiments that are within the scope of the appended claims and their equivalents.

[0044] While the embodiments of the application have been shown and described herein, it will be understood by those skilled in the art that many changes, modifications, substitutions and alterations to these embodiments can be made without departing from the principles and spirits of the application, which can be limited only by the scope of the appended claims and their equivalents.

Claims

1. A construction waste crushing and screening device comprising a base plate (1), characterized in that: The left end of the bottom plate (1) is provided with a pre-breaking assembly (2); The pre-breaking assembly (2) comprises a breaking box (201), the top end of the breaking box (201) is fixedly connected with a gas cylinder (202), the output end of the gas cylinder (202) is fixedly connected with a breaking plate (203), and the bottom of the breaking plate (203) and the inner bottom wall of the breaking box (201) are both provided in a sawtooth shape; The upper side of the bottom plate (1) is provided with a conveying assembly (3); The conveying assembly (3) comprises a framework (301), the left end of the framework (301) is rotatably connected with a power roller (302) between the front and rear inner side walls, the right end of the framework (301) is rotatably connected with a magnetic roller (303) between the front and rear inner side walls, the outer surfaces of the magnetic roller (303) and the power roller (302) are both provided with key grooves, a conveying belt (304) is arranged between the magnetic roller (303) and the power roller (302), the magnetic roller (303) and the power roller (302) are drivingly connected through the conveying belt (304), the right end of the framework (301) is provided in an upward inclination, and the left end of the framework (301) is located below the breaking box (201); The upper surface of the bottom plate (1) is provided with a screening assembly (4) at the right end; The screening assembly (4) comprises a screening box (401), the top end of the screening box (401) is provided in a funnel shape, the top end of the screening box (401) is located below the right end of the framework (301), two crushing shaft rollers (402) are rotatably connected between the front and rear inner side walls of the top end of the screening box (401), a plurality of screening mesh discs (403) with different mesh sizes are arranged below the crushing shaft rollers (402), each of the left and right inner side walls of each screening mesh disc (403) is fixedly connected with a group of sliding rods (404), each sliding rod (404) is slidingly inserted into the screening box (401), a spring (405) is fixedly connected between each screening mesh disc (403) and the left and right inner side walls of the screening box (401), and an extrusion shaft (406) is rotatably connected between the inner top wall and the inner bottom wall of the screening box (401).

2. A construction waste crushing and screening device according to claim 1, characterized in that: The bottom of the breaking box (201) is fixedly connected with a breaking support (5).

3. A construction waste crushing and screening apparatus according to claim 1, characterized in that: The bottom of the framework (301) is fixedly connected with a conveying support (6).

4. A construction waste crushing and screening apparatus according to claim 3, characterized in that: The right side top end of the conveying support (6) is fixedly connected with a left end inclined downward sliding plate (7), and the right end of the sliding plate (7) is located below the magnetic roller (303).

5. The construction waste crushing and screening apparatus according to claim 1, characterized in that: The upper surface of the framework (301) is fixedly connected with two guard plates (8).

6. A construction waste crushing and screening apparatus according to claim 5, characterized in that: The top end of each of the two guard plates (8) is fixedly connected with a spray pipe (9), the outer surface of each spray pipe (9) is fixedly connected with a group of upwardly arranged atomizing nozzles (10), and the bottom end of each spray pipe (9) is in communication with a water supply pipeline outside.

7. A construction waste crushing and screening apparatus according to claim 1, characterized in that: The front end of each of the two crushing shaft rollers (402) is fixedly connected with a gear (11), and the two gears (11) are meshingly connected.

8. A construction waste crushing and screening apparatus according to claim 1, characterized in that: The front end of the power roller (302), the top end of the extrusion shaft (406) and the rear end of the left side crushing shaft roller (402) are fixedly connected with the motor output end.

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