Construction waste coarse and fine aggregate separating device

Abstract

The utility model relates to building garbage processing technical field discloses building garbage coarse and fine aggregate separating device, including outer frame, feed hopper and grading screen, still include the reciprocating assembly of driving grading screen movement and the adsorption assembly of adsorbing dust. The reciprocating assembly is constituted by transmission mechanism of motor drive swingle, transmission rod and connecting rod, drives grading screen to move stably to and fro along fixed rod, makes material get fully screening, the adsorption cover of adsorption assembly produces negative pressure at the feed hopper through air pump, and the dust generated in the screening process is sucked, after filtration through filter screen, the dust falls into the collection bin through the dust falling pipe and is centrally treated. The utility model through the cooperative work of reciprocating assembly and adsorption assembly, effectively solved the technical problem of low building garbage screening precision and serious dust pollution in the prior art, reached the double technical effects of high -efficient accurate screening and environmental protection dust removal.

Description

Technical Field

[0001] This utility model relates to the field of construction waste treatment technology, and in particular to a device for separating coarse and fine aggregates from construction waste. Background Technology

[0002] With the acceleration of urbanization, the amount of construction waste generated is increasing day by day, putting enormous pressure on the environment. Resource recycling of construction waste, especially by crushing and separating it into coarse and fine aggregates of different particle sizes, is a key step in maximizing its value. This not only conserves natural resources but also aligns with the requirements of green development.

[0003] In the resource recovery process of construction waste, screening equipment is the core device for achieving aggregate separation. Existing separation devices typically use the principle of vibrating screens, which use mechanical vibration to cause materials of different particle sizes to separate into layers on the screen and pass through, thereby achieving the purpose of separation.

[0004] However, construction waste has a complex composition, often containing soil with varying moisture content, dust, and irregularly shaped concrete blocks, which leads to significant shortcomings in traditional screening methods. Simple vibration or shaking is insufficient to effectively separate the cohesive, moist fine materials from the coarse aggregates, resulting in incomplete screening, low separation accuracy, and directly affecting the quality of recycled aggregates.

[0005] More seriously, the violent vibrations and material tumbling during mechanical screening of dry construction waste inevitably generate large amounts of dust. This dust permeates the work site, severely deteriorating the working environment and endangering the health of operators. It also spreads to surrounding areas, causing secondary environmental pollution, which contradicts the environmentally friendly purpose of resource recycling.

[0006] Therefore, this utility model proposes a coarse and fine aggregate separation device for construction waste to overcome the shortcomings of the prior art. Utility Model Content

[0007] To overcome the above shortcomings, this utility model provides a coarse and fine aggregate separation device for construction waste, which aims to improve the problems of low screening accuracy and serious dust pollution during operation in the existing coarse and fine aggregate separation devices for construction waste.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: A coarse and fine aggregate separation device for construction waste includes: an outer frame, a feed hopper, a grading screen; and a reciprocating component and an adsorption component.

[0009] The reciprocating assembly includes a motor that drives the grading screen and a transmission mechanism that connects the motor and the grading screen. The adsorption assembly includes an air pump for generating negative pressure and an adsorption hood disposed below the feed hopper.

[0010] Furthermore, the outer frame serves as an installation base, on which the feed hopper is mounted. The grading screen is located below the feed hopper. The reciprocating assembly is connected to the grading screen to drive its reciprocating motion. The air pump in the adsorption assembly is connected to the adsorption hood to adsorb the dust generated in the feeding and screening areas.

[0011] Preferably, the transmission mechanism includes a rotating rod, a transmission rod, and a connecting rod. The output end of the motor is fixedly connected to the rotating rod, and the rotating rod is connected to the connecting rod through the transmission rod.

[0012] Preferably, the reciprocating assembly further includes a limiting block for limiting the range of motion of the transmission rod.

[0013] Preferably, the construction waste coarse and fine aggregate separation device further includes a fixed rod arranged along the movement direction of the grading screen, a baffle fixedly connected to the grading screen, the grading screen being slidably connected to the fixed rod, and the connecting rod being fixedly connected to the baffle.

[0014] Preferably, the adsorption assembly further includes an adsorption tube and a filter screen, the air pump is connected to the adsorption hood through the adsorption tube, and the filter screen is disposed in the airflow path of the adsorption tube.

[0015] Preferably, the construction waste coarse and fine aggregate separation device further includes a collection bin, and the adsorption component further includes a dust collection pipe, one end of which is connected to the bottom of the filter screen, and the other end is connected to the collection bin.

[0016] Preferably, the construction waste coarse and fine aggregate separation device further includes multiple discharge hoppers located below the grading screen for collecting aggregates that have passed through the screen.

[0017] Preferably, the construction waste coarse and fine aggregate separation device further includes a discharge port, which is located at the end of the grading screen away from the feed hopper, for discharging aggregates that have not passed the screening.

[0018] This utility model has the following beneficial effects: 1. In this utility model, by setting a linkage reciprocating assembly driven by a motor, the grading screen moves back and forth stably, which solves the problems of insufficient screening and low separation accuracy of construction waste in the prior art, and achieves the technical effect of improving the screening effect and separation accuracy of coarse and fine aggregates of construction waste.

[0019] 2. In this utility model, by setting a negative pressure adsorption component near the feed inlet, the adsorption component includes an air pump, an adsorption hood and a filter screen, which solves the problem of dust flying and polluting the environment during the screening process of construction waste in the prior art, and achieves the technical effect of actively collecting dust and reducing environmental pollution during the screening operation. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the coarse and fine aggregate separation device for construction waste proposed in this utility model; Figure 2 This is a side view of the coarse and fine aggregate separation device for construction waste proposed in this utility model; Figure 3 This is a top view of the coarse and fine aggregate separation device for construction waste proposed in this utility model; Figure 4 This is a schematic diagram of the adsorption component of the coarse and fine aggregate separation device for construction waste proposed in this utility model; Figure 5 This is a schematic diagram of the reciprocating component of the coarse and fine aggregate separation device for construction waste proposed in this utility model; Figure 6 This is a schematic diagram of the structure of the fixing rod of the coarse and fine aggregate separation device for construction waste proposed in this utility model.

[0021] Legend: 1. Outer frame; 2. Feed hopper; 3. Grading screen; 4. Reciprocating assembly; 401. Motor; 402. Rotating rod; 403. Transmission rod; 404. Connecting rod; 405. Limiting block; 5. Adsorption assembly; 501. Air pump; 502. Adsorption tube; 503. Adsorption hood; 504. Filter screen; 505. Dust collection pipe; 6. Discharge hopper; 7. Discharge port; 8. Collection bin; 9. Baffle; 10. Fixing rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please refer to Figures 1 to 6 This utility model provides a coarse and fine aggregate separation device for construction waste, which aims to solve the problems of low screening accuracy and serious dust pollution during operation in the prior art.

[0024] like Figure 1 , Figure 2 and Figure 6As shown, the coarse and fine aggregate separation device for construction waste includes an outer frame 1, a feed hopper 2 installed on the outer frame 1, and a grading screen 3 located below the feed hopper 2. The outer frame 1 serves as the mounting base for the entire device and supports other components. Construction waste is fed into the device through the feed hopper 2, and the grading screen 3 is used for initial loading and subsequent screening of the incoming construction waste. The core structure of the device includes a reciprocating component 4 that drives the grading screen 3 to reciprocate, and an adsorption component 5 for adsorbing dust. Through the coordinated work of the reciprocating component 4 and the adsorption component 5, efficient screening and environmentally friendly dust removal are achieved.

[0025] The reciprocating component 4 is used to convert power into stable reciprocating motion of the grading screen 3, thereby improving the screening effect and separation accuracy. (Refer to...) Figure 3 and Figure 5 Specifically, the reciprocating assembly 4 includes a motor 401 that drives the grading screen 3 to move and a transmission mechanism that connects the motor 401 and the grading screen 3. The transmission mechanism includes a rotating rod 402, a transmission rod 403, and a connecting rod 404. The output end of the motor 401 is fixedly connected to the rotating rod 402 to provide initial rotational power. The rotating rod 402 is connected to the connecting rod 404 through the transmission rod 403. Finally, the connecting rod 404 is connected to the grading screen 3, thereby accurately converting the rotational motion of the motor 401 into the left-right reciprocating motion of the grading screen 3. To make the motion more stable and controllable, the reciprocating assembly 4 also includes a limiting block 405, which is used to limit the range of motion of the transmission rod 403 to ensure that the entire screening process is smooth and reliable.

[0026] The adsorption component 5 is used to actively collect dust raised by material movement during the screening process, thereby maintaining environmental cleanliness. (Refer to...) Figure 3 and Figure 4 Specifically, the adsorption assembly 5 includes an air pump 501 for generating negative pressure and an adsorption hood 503 disposed below the feed hopper 2. The adsorption hood 503 can directly and efficiently collect dust at the source. The air pump 501 is connected to the adsorption hood 503 to generate negative pressure and form suction, effectively sucking up the dust and light impurities into the subsequent processing unit.

[0027] To achieve the above technical solution, the structural fit and connection relationship of the device have been further optimized in this embodiment. Please refer to the following for details. Figure 3 , Figure 4 and Figure 6The core structure is described in detail below. To ensure the stability and guidance of the reciprocating motion of the grading screen 3, the device also includes a fixed rod 10 arranged along the movement direction of the grading screen 3. The two ends of the fixed rod 10 are fixedly connected to the inside of the outer frame 1, and the grading screen 3 is slidably connected to the fixed rod 10. Through the guiding effect of the fixed rod 10, the grading screen 3 is limited to linear reciprocating motion in the left and right directions, thereby avoiding deviation and shaking during the movement, ensuring that the construction waste can be evenly stressed and efficiently screened on the grading screen 3. At the same time, a baffle 9 is also fixedly connected to the grading screen 3. The connecting rod 404 is fixedly connected to the baffle 9. The baffle 9 moves synchronously with the grading screen 3 and can play a role in blocking and turning over during the material screening process, further improving the screening efficiency.

[0028] Meanwhile, to enable the adsorption component 5 to form a complete dust collection and treatment process, the adsorption component 5 also includes an adsorption tube 502 and a filter screen 504. The air pump 501 is connected to the adsorption hood 503 through the adsorption tube 502 to form a negative pressure airflow channel. The filter screen 504 is located in the airflow path of the adsorption tube 502. When the airflow containing dust passes through, the dust and impurities are effectively intercepted by the filter screen 504, while clean air is discharged. To properly handle the intercepted dust, the device also includes a collection chamber 8, and the adsorption component 5 also includes a dust collection pipe 505. One end of the dust collection pipe 505 is connected to the bottom of the filter screen 504, and the other end is connected to the collection chamber 8. The dust intercepted by the filter screen 504 will fall directly through the dust collection pipe 505 under the action of gravity and accumulate in the collection chamber 8 for centralized cleaning. This structural design forms a complete closed-loop dust removal system from source adsorption, mid-stage filtration to end collection, which greatly improves the environmental performance of the device.

[0029] Based on the above embodiments, in order to further improve the technical solution of this utility model, the specific structure and connection method of each component will be described in detail below. In a preferred embodiment, the power transmission path of the transmission mechanism is clear and reliable. The output shaft of the motor 401 is fixedly connected to one end of the rotating rod 402, and the other end of the rotating rod 402 is connected to one end of the transmission rod 403 by a hinge. The other end of the transmission rod 403 is then connected to the connecting rod 404, and the connecting rod 404 is firmly fixedly connected to the baffle 9. Through the precise cooperation of this series of transmission components, the power is stably output to the grading screen 3.

[0030] To further improve the discharge efficiency and classification effect of the device, the device also includes multiple discharge hoppers 6, which are located below the grading screen 3 and are used to collect fine aggregates after being screened by the grading screen 3. For coarse aggregates that are too large to pass through the grading screen 3, a discharge port 7 is provided at the end of the grading screen 3 away from the feed hopper 2. These coarse aggregates will be transported to the discharge port 7 and discharged under the action of reciprocating motion, thereby realizing the effective separation and classification collection of coarse and fine aggregates.

[0031] Working principle: When construction waste is fed from the feed hopper 2 and falls onto the grading screen 3, the motor 401 in the reciprocating assembly 4 starts. The motor 401 drives the rotating rod 402 to rotate. The rotating rod 402 drives the connecting rod 404 through the transmission rod 403. Under the restriction of the limiting block 405, the connecting rod 404 drives the baffle 9 and the grading screen 3 fixedly connected to it to swing back and forth along the fixed rod 10. During this reciprocating swing, the baffle 9 assists in turning the material, so that the fine aggregate in the construction waste passes through the mesh of the grading screen 3 and falls into the discharge hopper 6 below, while the coarse aggregate with a larger particle size is intercepted by the grading screen 3 and is transported to the discharge port 7 for discharge, thereby realizing the separation of coarse and fine aggregate.

[0032] While the screening process is underway, the adsorption component 5 starts working, and the air pump 501 starts to generate negative pressure. This negative pressure acts on the adsorption hood 503 located below the feed hopper 2 through the adsorption pipe 502, adsorbing the dust and light impurities generated during the feeding and screening process. When the dust-laden airflow is drawn in and passes through the filter screen 504, the dust is intercepted and then falls through the dust drop pipe 505 and is collected in the collection bin 8, thereby effectively reducing dust pollution.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A coarse and fine aggregate separation device for construction waste, comprising: The device comprises an outer frame (1), a feed hopper (2) installed on the outer frame (1), and a grading screen (3) disposed below the feed hopper (2); characterized in that the device further comprises: A reciprocating assembly (4), the reciprocating assembly (4) including a motor (401) for driving the grading screen (3) and a transmission mechanism connecting the motor (401) and the grading screen (3); and The adsorption assembly (5) includes an air pump (501) for generating negative pressure and an adsorption hood (503) disposed below the feed hopper (2), wherein the air pump (501) is connected to the adsorption hood (503).

2. The coarse and fine aggregate separation device for construction waste according to claim 1, characterized in that: The transmission mechanism includes a rotating rod (402), a transmission rod (403), and a connecting rod (404); the output end of the motor (401) is fixedly connected to the rotating rod (402), and the rotating rod (402) is connected to the connecting rod (404) through the transmission rod (403).

3. The coarse and fine aggregate separation device for construction waste according to claim 2, characterized in that: The reciprocating assembly (4) further includes a limiting block (405) for limiting the range of motion of the transmission rod (403).

4. The coarse and fine aggregate separation device for construction waste according to claim 2, characterized in that: The device further includes a fixed rod (10) arranged along the movement direction of the grading screen (3); the grading screen (3) is slidably connected to the fixed rod (10); a baffle (9) is also fixedly connected to the grading screen (3), and the connecting rod (404) is fixedly connected to the baffle (9).

5. The coarse and fine aggregate separation device for construction waste according to claim 1, characterized in that: The adsorption assembly (5) further includes an adsorption tube (502) and a filter screen (504); the air pump (501) is connected to the adsorption hood (503) through the adsorption tube (502), and the filter screen (504) is located on the airflow path of the adsorption tube (502).

6. The coarse and fine aggregate separation device for construction waste according to claim 5, characterized in that: The device also includes a collection chamber (8); the adsorption component (5) also includes a dust collection pipe (505), one end of which is connected to the bottom of the filter screen (504), and the other end is connected to the collection chamber (8).

7. The coarse and fine aggregate separation device for construction waste according to claim 1, characterized in that: The device also includes a plurality of discharge hoppers (6), which are located below the grading screen (3).

8. The coarse and fine aggregate separation device for construction waste according to claim 1, characterized in that: The device also includes a discharge port (7), which is located at one end of the grading screen (3) away from the feed hopper (2).

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