Aggregate screening device for recycled concrete processing

Abstract

The utility model relates to the technical field of building material processing, and discloses an aggregate screening device for recycled concrete processing, which comprises a base and a shaft bracket, the shaft bracket is used for supporting a rotating shaft and ensuring stable operation of a conveyor belt, and the rotating shaft is driven by a motor to enable the conveyor belt to keep continuous operation. The conveying belt is used for conveying aggregate and adsorbing iron impurities through the permanent magnet iron remover, and the permanent magnet iron remover generates magnetic force to adsorb iron components and steel bars in the aggregate. According to the aggregate screening device for recycled concrete processing, through cooperation of the conveying belt and the permanent magnet iron remover, iron impurities in aggregate can be efficiently removed, operation safety of follow-up equipment is protected, the purity of the aggregate is improved, the conveying belt has the continuous conveying capacity, the iron impurities can be rapidly conveyed to a collecting opening to be recycled, and the recycling efficiency of the aggregate is improved. The whole iron removal process is high in automation degree, manual intervention is not needed, and the working intensity is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to building material processing technical field, concretely is a kind of aggregate screening device for recycled concrete processing. BACKGROUND

[0002] Recycled concrete is the reusable aggregate obtained by crushing, cleaning and screening using construction waste such as discarded concrete blocks, bricks and mortar. This material not only can replace part of natural aggregate for the production of new concrete, but also can effectively reduce the accumulation of construction waste and reduce the impact on the environment. It is an important technology to promote sustainable development. In the processing of recycled concrete, the construction waste needs to be crushed first to generate concrete aggregate of different sizes. These aggregates may contain steel bars, nails and other impurities, so iron removal treatment is needed. In addition, due to the uneven size of the aggregate, further screening is necessary to ensure that aggregates of different particle sizes can meet the needs of concrete production.

[0003] Traditional screening devices usually have low screening precision and low efficiency. The separation effect of the embedded iron impurities is poor, the screen mesh is easy to block, and there is a lack of automatic design. Manual frequent adjustment and maintenance are needed, which reduces the work efficiency and makes it difficult to meet the requirements of modern recycled concrete production. Therefore, it is particularly important to develop a high-efficiency aggregate screening device. SUMMARY

[0004] (I) Technical problem solved

[0005] The purpose of the utility model is to provide an aggregate screening device for recycled concrete processing to solve the problem of traditional screening devices that cannot separate embedded iron impurities.

[0006] (II) Technical solution

[0007] In order to achieve the above object, the utility model provides the following technical scheme: a kind of aggregate screening device for recycled concrete processing, the aggregate screening device for recycled concrete processing includes pedestal, the front end of the pedestal is provided with mounting bracket, the upper end of the pedestal is provided with iron removal mechanism, the front end of the mounting bracket is provided with screening mechanism, the iron removal mechanism includes material conveying belt, the upper end of the pedestal is provided with material conveying belt, the left and right sides of the material conveying belt are provided with shaft support, and right side shaft support is farther from material conveying belt than left side shaft support, the upper end of the shaft support is provided with rotating shaft, conveying belt is arranged between the rotating shaft, the rotating shaft is driven by motor, the inside of the conveying belt is provided with permanent magnet iron remover, pedestal is used to support the whole device and provide stable foundation, mounting bracket is used to connect pedestal and support screening mechanism, iron removal mechanism is used to remove iron impurities in aggregate to ensure aggregate purity, material conveying belt is used to convey broken aggregate to iron removal mechanism and screening mechanism, shaft support is used to support rotating shaft and ensure the smooth operation of conveying belt, the rotating shaft is driven by motor to keep conveying belt continuous operation, conveying belt is used to transport aggregate and adsorb iron impurities by permanent magnet iron remover, permanent magnet iron remover generates magnetic force to adsorb iron parts and reinforcing steel in aggregate.

[0008] Preferably, the right bottom of the conveying belt is provided with a collection port, the collection port is directly below the conveying belt, and the collection port is used to collect iron impurities that fall off after being affected by the magnetic force.

[0009] Preferably, the screening mechanism includes a screening box, the front end of the mounting bracket is provided with a screening box, the screening box is a box structure with smaller ends at both ends, and the screening box is used to store and screen aggregate.

[0010] Preferably, the top of the screening box is provided with an inlet, the inlet is directly below the end of the material conveying belt in the direction of movement, the front end of the screening box is provided with a coarse material pipe, the inlet is used to introduce the conveyed aggregate into the screening box, and the coarse material pipe is used to collect larger particles of aggregate.

[0011] Preferably, the inside of the coarse material pipe near one end of the screening box is provided with a discharge valve, the bottom of the screening box is provided with a fine material outlet, the discharge valve is used to control the discharge of aggregate in the coarse material pipe, and the fine material outlet is used to discharge fine aggregate after screening.

[0012] Preferably, a screen is arranged at an intermediate position in the inside of the screening box, the screen is inclined towards the coarse material pipe, the rear end of the screen is provided with a vibration motor, the screen is used to separate aggregate according to particle size, and the vibration motor is used to drive the screen to vibrate to realize the screening of aggregate.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. The aggregate screening device for recycled concrete processing can efficiently remove iron impurities in the aggregate through the cooperation of the conveying belt and the permanent magnet iron remover, not only protects the operation safety of the subsequent equipment, but also improves the purity of the aggregate, the conveying belt has the ability of continuous conveying, can quickly convey the iron impurities to the collection port for recycling, the whole iron removal process is highly automated and does not need manual intervention, thereby reducing the working intensity;

[0015] 2. The aggregate screening device for recycled concrete processing, the screening mechanism realizes efficient screening operation by driving the screen through the vibration motor, can accurately separate aggregate of different particle sizes, fine aggregate falls through the screen and is discharged from the fine material outlet, coarse aggregate moves to the coarse material pipe direction after vibration on the screen surface, the screen structure is simple, the vibration force provided by the vibration motor is powerful and stable, the screening efficiency is high, the quality of the aggregate is guaranteed, and the production demand of aggregate of different particle sizes is met;

[0016] 3. The aggregate screening device for recycled concrete processing, the base provides stable support, the design of the shaft support and the rotating shaft ensures the stability of the conveying belt and the screen, the discharge valve can accurately control the discharge of the aggregate, prevents the accumulation of the aggregate during screening, the whole device is highly automated and reliable in operation, reduces the complexity of manual operation, and improves the work efficiency and production safety. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of the aggregate screening device for recycled concrete processing of the utility model;

[0018] Figure 2 It is a screening mechanism structure schematic view of the utility model;

[0019] Figure 3 It is an iron removal mechanism structure schematic view of the utility model;

[0020] Figure 4 It is a cross-section structure schematic view of the screening mechanism of the utility model.

[0021] In the drawing: 1, base; 2, mounting frame; 3, iron removal mechanism; 301, conveying belt; 302, shaft support; 303, rotating shaft; 304, conveying belt; 305, motor; 306, permanent magnet iron remover; 307, collection port; 4, screening mechanism; 401, screening box; 402, inlet; 403, coarse material pipe; 404, discharge valve; 405, fine material outlet; 406, screen; 407, vibration motor. DETAILED DESCRIPTION

[0022] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0023] Please refer to Figures 1-4 The present application provides a technical scheme: a kind of aggregate screening device for recycled concrete processing, the aggregate screening device for recycled concrete processing includes pedestal 1, the front end of pedestal 1 is provided with mounting bracket 2, the upper end of pedestal 1 is provided with iron removal mechanism 3, the front end of mounting bracket 2 is provided with screening mechanism 4, iron removal mechanism 3 includes conveying belt 301, the upper end of pedestal 1 is provided with conveying belt 301, the left and right sides of conveying belt 301 are provided with shaft bracket 302, and right side shaft bracket 302 is more distant from conveying belt 301 than left side shaft bracket 302, the upper end of shaft bracket 302 is provided with rotating shaft 303, conveying belt 304 is provided between rotating shaft 303, rotating shaft 303 is driven by motor 305, the inside of conveying belt 304 is provided with permanent magnet iron remover 306, pedestal 1 is used to support the whole device and provide stable foundation, mounting bracket 2 is used to fix screening mechanism and iron removal mechanism to ensure the stable operation of equipment, iron removal mechanism 3 uses the magnetic force generated by permanent magnet iron remover 306 to adsorb iron impurities and reinforcing steel in aggregate, conveying belt 301 is used to convey the crushed aggregate to the position of permanent magnet iron remover 306 for iron removal treatment, shaft bracket 302 supports rotating shaft 303 and keeps the stable operation of conveying belt 301 and conveying belt 304, rotating shaft 303 is driven by motor 305 to drive conveying belt 304 to rotate continuously, conveying belt 304 is responsible for transporting aggregate and conveying the adsorbed iron impurities to collecting port 307, permanent magnet iron remover 306 generates strong magnetic field to adsorb iron impurities in aggregate and prevent them from entering the screening process.

[0024] The right side bottom of conveying belt 304 is provided with collecting port 307, collecting port 307 is the position directly below conveying belt 304, screening mechanism 4 includes screening box 401, the front end of mounting bracket 2 is provided with screening box 401, screening box 401 is a box structure with smaller vertical ends, the top of screening box 401 is provided with inlet 402, inlet 402 is located directly below the end of the movement direction of conveying belt 301, the front end of screening box 401 is provided with coarse material pipe 403, collecting port 307 is used to receive the iron impurities dropped from conveying belt 304 for centralized recovery, screening box 401 is used to store aggregate and provide container for screening process, inlet 402 allows aggregate to enter the inside of screening box 401 from conveying belt 301.

[0025] The coarse material pipe 403 is internally provided with a discharge valve 404 near one end of the screening box 401, the bottom of the screening box 401 is provided with a fine material outlet 405, and the inside of the screening box 401 is provided with a screen 406 at a middle position. The screen 406 is inclined towards the coarse material pipe 403, the rear end of the screen 406 is provided with a vibration motor 407, the screen 406 screens the aggregate according to the particle size by using the vibration force provided by the vibration motor 407, the smaller aggregate falls through the holes of the screen 406 to the bottom of the screening box 401 and is discharged from the fine material outlet 405, and the larger aggregate moves towards the coarse material pipe 403 after being vibrated on the surface of the screen 406. The coarse material pipe 403 is used for receiving the larger aggregate screened on the screen 406, the discharge valve 404 is used for controlling the discharge of the aggregate in the coarse material pipe 403, and the vibration motor 407 helps to realize the separation and screening of the aggregate by vibrating the screen 406. The whole device realizes the efficient iron removal and screening function of the aggregate through the cooperation of these parts.

[0026] Working principle: the crushed aggregate is conveyed through the conveying belt 301, the motor 305 drives the rotating shaft 303 in the conveying process, the rotating shaft 303 drives the conveying belt 304 to rotate, the aggregate is transported on the conveying belt 304, the permanent magnet iron remover 306 is started to generate a magnetic force, the iron parts and steel bars in the aggregate are adsorbed on the inner surface of the conveying belt 304 under the action of the magnetic force, the conveying belt 304 continuously transports the adsorbed iron impurities to the collection port 307, the shaft support 302 provides support for the rotating shaft 303 and the conveying belt 304, the aggregate after iron removal continues to be conveyed to the inside of the screening mechanism through the conveying belt 301, the aggregate is accumulated above the screen 406, the vibration motor 407 is started to generate vibration, the screen 406 starts to vibrate, the aggregate is screened under the vibration of the screen 406, the smaller aggregate falls through the holes of the screen 406 to the bottom of the screening box, and finally is discharged from the fine material outlet 405, and the larger aggregate stays on the surface of the screen 406 and moves towards the coarse material pipe 403 through vibration, at this time, the discharge valve 404 is in a closed state, when the screening of the larger aggregate is completed, the discharge valve 404 is opened, the larger aggregate is discharged through the coarse material pipe 403 and collected, and the whole process realizes the iron removal, fine material screening and coarse material separation of the aggregate.

[0027] Finally, it should be noted that the above content is only used to illustrate the technical scheme of the present application, and is not a limitation on the protection scope of the present application. Simple modifications or equivalent replacements of the technical scheme of the present application made by ordinary skilled in the art do not deviate from the essence and scope of the technical scheme of the present application.

Claims

1. A recycled concrete processing aggregate screening device comprising a base (1), characterised in that: The front end of the base (1) is provided with a mounting frame (2), the upper end of the base (1) is provided with an iron removal mechanism (3), the front end of the mounting frame (2) is provided with a screening mechanism (4), the iron removal mechanism (3) comprises a conveying belt (301), the upper end of the base (1) is provided with a conveying belt (301), the left and right sides of the conveying belt (301) are provided with shaft supports (302), and the right shaft support (302) is farther away from the conveying belt (301) than the left shaft support (302), the upper ends of the shaft supports (302) are provided with rotating shafts (303), the rotating shafts (303) are provided with a conveyor belt (304) therebetween, the rotating shafts (303) are driven by a motor (305), and the inside of the conveyor belt (304) is provided with a permanent magnet iron remover (306).

2. A recycled concrete processing aggregate screening device as claimed in claim 1, wherein: The right bottom of the conveyor belt (304) is provided with a collecting port (307), and the collecting port (307) is located directly below the conveyor belt (304).

3. A recycled concrete processing aggregate screening device as claimed in claim 1, wherein: The screening mechanism (4) comprises a screening box (401), the front end of the mounting frame (2) is provided with a screening box (401), and the screening box (401) is a box structure with smaller vertical ends.

4. A recycled concrete processing aggregate screening apparatus as claimed in claim 3, wherein: The top of the screening box (401) is provided with an inlet (402), and the inlet (402) is located directly below the end of the conveying belt (301) in the movement direction.

5. A recycled concrete processing aggregate screening apparatus as claimed in claim 4, wherein: The inside of the coarse material pipe (403) near one end of the screening box (401) is provided with a discharge valve (404), and the bottom of the screening box (401) is provided with a fine material outlet (405).

6. A recycled concrete processing aggregate screening device as claimed in claim 3, characterised in that: The inside of the screening box (401) is provided with a screen (406) at an intermediate position, the screen (406) is inclined towards the coarse material pipe (403), and the rear end of the screen (406) is provided with a vibration motor (407).

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