Asphalt concrete aggregate screening equipment

Abstract

The utility model relates to the field of screening equipment, in particular to asphalt concrete aggregate screening equipment. The technical problems that an existing asphalt concrete aggregate screening device usually generates a large amount of dust in the concrete aggregate screening process, the working environment is affected, the human body is harmed, the dust is accumulated and adhered to the screening device, and the device is damaged are solved. Compared with traditional asphalt concrete aggregate screening equipment, the asphalt concrete aggregate screening equipment comprises the feeding assembly, the screening assembly, the dust collecting assembly and the supporting assembly, the control valve is arranged on the outer side of the feeding hopper, so that the screening process can be conducted in a closed container, and a large amount of dust overflowing in the screening process is prevented from polluting the environment or hurting the human body; the dust collecting assembly can absorb and store dust generated in the process that the screening assembly screens the asphalt concrete aggregate, the dust is prevented from being accumulated or adhered to the inner wall of the equipment, and the supporting assembly can be used for supporting the assemblies above so as to keep the stability of the assemblies.

Description

Technical Field

[0001] The utility model relates to the field of screening equipment, in particular to an asphalt concrete aggregate screening equipment. Background Art

[0002] Asphalt concrete aggregate refers to the aggregate used in asphalt concrete. The aggregate in asphalt concrete plays a role of skeleton and filling in cement concrete and asphalt mixture. Its main technical properties include physical and mechanical properties and chemical properties. The particle size, particle shape and surface roughness of the aggregate will affect the strength of asphalt mixture. The selection and use of asphalt concrete aggregate are crucial for ensuring the performance and quality of asphalt concrete. Appropriate aggregate can improve the compressive strength, wear resistance and durability of asphalt concrete, thus prolonging the service life of the road surface. In order to remove impurities in the aggregate, such as soil, sand, etc. and meet different requirements for the particle size of the aggregate on different roads or road surfaces, the concrete aggregate is usually screened. The asphalt concrete aggregate screening equipment is mainly used for grading and screening the aggregate according to the particle size. The existing asphalt concrete aggregate screening equipment usually generates a large amount of dust during the screening process of concrete aggregate, which will not only affect the working environment and cause harm to the human body, but also damage the equipment due to the adhesion of dust accumulation on the screening equipment. Summary of the Invention

[0003] In order to overcome the problem that the existing asphalt concrete aggregate screening equipment usually generates a large amount of dust during the screening process of concrete aggregate, which will not only affect the working environment and cause harm to the human body, but also damage the equipment due to the adhesion of dust accumulation on the screening equipment.

[0004] The technical solution of the utility model is: an asphalt concrete aggregate screening equipment, which includes a feeding component, a screening component, a dust collection component and a support component. The right lower part of the feeding component is fixedly connected with a screening component for screening asphalt concrete aggregate according to the particle size, the left lower part of the feeding component is fixedly connected with a dust collection component for collecting dust, and the lower ends of the screening component and the dust collection component are fixedly connected with a support component for support.

[0005] Preferably, by setting a control valve outside the feeding hopper, the screening process can be carried out in a closed container, which can avoid a large amount of dust overflowing during the screening process and polluting the environment or causing harm to the human body. By setting a dust collection component, the dust generated during the screening process of the screening component for asphalt concrete aggregate can be absorbed and stored, avoiding dust accumulation or adhesion on the inner wall of the screening component. The screening component with a first filter plate, a second filter plate and a third filter plate can screen the asphalt concrete aggregate according to different particle size sizes, so that the aggregates with different particle sizes can be classified and collected to meet different use requirements. By setting a support component, it can be used to support the upper components to maintain their stability.

[0006] Preferably, the feeding assembly includes a top plate and a feeding hopper. A feeding hopper for guiding asphalt concrete aggregate into the screening assembly is fixedly installed at the upper end of the top plate. A control valve for controlling the entry and exit of the aggregate is provided outside the feeding hopper. By providing the control valve outside the feeding hopper, the screening process can be carried out in a closed container, which can avoid a large amount of dust spilling out during the screening process, polluting the environment or causing harm to the human body.

[0007] Preferably, the screening assembly includes a screening box, a first filter plate, a second filter plate, a third filter plate, a box door and a first discharge pipe. Inside the screening box, the first filter plate, the second filter plate and the third filter plate for filtering larger particles, medium particles and smaller particles of aggregate respectively are sequentially arranged from top to bottom along the inside. The first filter plate, the second filter plate and the third filter plate divide the screening box into four areas.

[0008] Preferably, box doors for facilitating the cleaning of the aggregate are provided at the front end of the screening box corresponding to the four areas divided by the first filter plate, the second filter plate and the third filter plate. The first filter plate, the second filter plate and the third filter plate are all inclined. At the right end of the screening box, positions corresponding to the bottoms of the first filter plate, the second filter plate and the third filter plate are fixedly connected with first discharge pipes for discharging the filtered larger, medium and smaller particles of aggregate. Control valves for controlling the entry and exit are provided outside the first discharge pipes. By providing the screening assembly with the first filter plate, the second filter plate and the third filter plate, the asphalt concrete aggregate can be screened according to different particle sizes, and the aggregates with different particle sizes can be classified and collected to meet different usage requirements.

[0009] Preferably, the dust collection assembly includes a dust collection box, a frame, a fan and a fourth filter plate. Four groups of through holes matching the four areas of the screening box are evenly arranged from top to bottom at the right end of the dust collection box. Inside the through holes, a fan for sucking the dust generated during the screening process of the screening assembly into the dust collection box is embedded. The fan is fixedly connected with the dust collection box through the frame. A fourth filter plate for blocking the entry of the aggregate is provided at one end of the frame close to the screening assembly. By providing the fourth filter plate at one end of the fan close to the screening assembly to block the aggregate, it can be avoided that the aggregate and dust enter the dust collection box together during the screening process.

[0010] Preferably, the support assembly includes a bottom plate, a second discharge pipe, a third discharge pipe, support columns and support seats. A third discharge pipe for discharging the dust in the dust collection box is provided at the left part of the lower end of the bottom plate. A second discharge pipe for discharging the fine particle aggregate at the bottom of the screening box is provided at the right part of the lower end of the bottom plate. Control valves for controlling the entry and exit are provided outside the second discharge pipe and the third discharge pipe.

[0011] Preferably, support columns for support are provided around the four corners at the lower end of the bottom plate. Support seats for increasing the support stability are provided at the lower ends of the support columns. Mounting holes for installing and fixing the support seats are provided around the upper ends of the support seats. By providing the mounting holes on the support seats, the support seats can be installed and fixed at corresponding positions to increase the stability of the support columns, thereby ensuring that the components above can work properly.

[0012] Advantages of the present utility model:

[0013] 1. Compared with traditional asphalt concrete aggregate screening equipment, a large amount of dust is usually generated during the screening process of concrete aggregates, which not only affects the working environment and causes harm to the human body, but also damages the equipment due to dust accumulation and adhesion on the screening equipment. By providing a control valve on the outside of the feed hopper, the screening process can be carried out in a closed container, which can avoid a large amount of dust spilling out during the screening process and polluting the environment or causing harm to the human body. By providing a dust collection component, the dust generated during the screening of asphalt concrete aggregates by the screening component can be absorbed and stored, avoiding dust accumulation or adhesion on the inner wall of the screening component. By providing a fan, it can be used to absorb dust and suck the dust into the dust collection box for temporary storage. By providing a fourth filter plate at one end of the fan close to the screening component, the aggregates can be blocked to avoid the aggregates and dust entering the dust collection box together. By providing a third discharge pipe at the lower end of the bottom plate, the dust collected in the dust collection box can be regularly cleaned to avoid dust accumulation affecting the dust collection effect.

[0014] 2. The screening component with the first filter plate, the second filter plate and the third filter plate can screen the asphalt concrete aggregates according to different particle sizes, so that the aggregates with different particle sizes can be classified and collected to meet different usage requirements. By providing the first filter plate, it can be used to filter larger particles of aggregates. By providing the second filter plate, it can be used to filter medium-sized aggregates. By providing the third filter plate, it can be used to filter smaller particles of aggregates. Finally, the fine-particle aggregates enter the bottom of the screening box, so that the aggregates can be classified into four categories according to particle size. By providing a support component, it can be used to support the upper components to maintain their stability, and by providing mounting holes on the support seats, the support seats can be installed and fixed at corresponding positions to increase the stability of the support columns, thereby ensuring that the components above can work properly. Description of the drawings

[0015] Figure 1 Shows the overall schematic diagram of the asphalt concrete aggregate screening equipment of the present utility model;

[0016] Figure 2 Shows the exploded schematic diagram of the asphalt concrete aggregate screening equipment of the present utility model;

[0017] Figure 3The figure shows a schematic diagram of the screening assembly in the asphalt concrete aggregate screening equipment of the present utility model;

[0018] Figure 4 The figure shows an exploded schematic diagram of the dust collection assembly in the asphalt concrete aggregate screening equipment of the present utility model;

[0019] Figure 5 The figure shows a schematic diagram of the support assembly in the asphalt concrete aggregate screening equipment of the present utility model.

[0020] Explanation of reference numerals: 1, feeding assembly; 2, screening assembly; 3, dust collection assembly; 4, support assembly; 101, top plate; 102, feeding hopper; 201, screening box; 202, first filter plate; 203, second filter plate; 204, third filter plate; 205, box door; 206, first discharge pipe; 301, dust collection box; 302, through hole; 303, frame; 304, fan; 305, fourth filter plate; 401, bottom plate; 402, second discharge pipe; 403, third discharge pipe; 404, support column; 405, support seat; 406, mounting hole. Detailed implementation manners

[0021] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0022] Please refer to Figure 1-2 , the present utility model provides an embodiment: an asphalt concrete aggregate screening equipment, including a feeding assembly 1, a screening assembly 2, a dust collection assembly 3 and a support assembly 4. The right lower part of the lower end of the feeding assembly 1 is fixedly connected with a screening assembly 2 for screening asphalt concrete aggregates according to particle size. The left lower part of the lower end of the feeding assembly 1 is fixedly connected with a dust collection assembly 3 for collecting dust. The lower ends of the screening assembly 2 and the dust collection assembly 3 are fixedly connected with a support assembly 4 for support. The feeding assembly 1 includes a top plate 101 and a feeding hopper 102. A feeding hopper 102 for guiding asphalt concrete aggregates into the screening assembly 2 is fixedly installed at the upper end of the top plate 101. A control valve for controlling the entry and exit of aggregates is arranged outside the feeding hopper 102. By arranging a control valve outside the feeding hopper 102, the screening process can be carried out in a closed container, which can avoid a large amount of dust overflowing during the screening process and polluting the environment or causing harm to the human body.

[0023] Please refer to Figure 3, in this embodiment, the screening assembly 2 includes a screening box 201, a first filter plate 202, a second filter plate 203, a third filter plate 204, a box door 205 and a first discharge pipe 206. Inside the screening box 201, there are successively arranged from top to bottom the first filter plate 202, the second filter plate 203 and the third filter plate 204 for filtering larger particles, medium particles and smaller particle aggregates respectively. The first filter plate 202, the second filter plate 203 and the third filter plate 204 divide the screening box 201 into four areas. At the front end of the screening box 201, corresponding to the four areas divided by the first filter plate 202, the second filter plate 203 and the third filter plate 204, there are box doors 205 for facilitating the cleaning of aggregates. The first filter plate 202, the second filter plate 203 and the third filter plate 204 are all inclined. At the right end of the screening box 201, at positions corresponding to the bottoms of the first filter plate 202, the second filter plate 203 and the third filter plate 204, there are fixedly connected first discharge pipes 206 for discharging the filtered larger, medium and smaller particle aggregates. On the outside of the first discharge pipe 206, there is a control valve for controlling the inlet and outlet. By setting the screening assembly 2 with the first filter plate 202, the second filter plate 203 and the third filter plate 204, the asphalt concrete aggregates can be screened according to different particle sizes, and the aggregates with different sizes can be classified and collected to meet different usage requirements.

[0024] Please refer to Figure 4 , in this embodiment, the dust collection assembly 3 includes a dust collection box 301, a frame 303, a fan 304 and a fourth filter plate 305. On the right end of the dust collection box 301, there are evenly arranged four groups of through holes 302 matching the four areas of the screening box 201 from top to bottom. Inside the through holes 302, there is a fan 304 for sucking the dust generated during the screening process of the screening assembly 2 into the dust collection box 301. The fan 304 is fixedly connected to the dust collection box 301 through the frame 303. At one end of the frame 303 close to the screening assembly 2, there is a fourth filter plate 305 for blocking the entry of aggregates. By setting the fourth filter plate 305 at one end of the fan 304 close to the screening assembly 2 to block the aggregates, it is possible to prevent the aggregates and dust from entering the dust collection box 301 together during the screening process.

[0025] Please refer to Figure 5, in this embodiment, the support assembly 4 includes a bottom plate 401, a second discharge pipe 402, a third discharge pipe 403, support columns 404 and support seats 405. A third discharge pipe 403 for discharging the dust in the dust collection box 301 is provided at the lower left part of the bottom plate 401. A second discharge pipe 402 for discharging the fine particle aggregates at the bottom of the screening box 201 is provided at the lower right part of the bottom plate 401. Control valves for controlling the inlet and outlet are provided on the outer sides of the second discharge pipe 402 and the third discharge pipe 403. Support columns 404 for support are provided around the four corners at the lower end of the bottom plate 401. A support seat 405 for increasing the support stability is provided at the lower end of the support column 404. Mounting holes 406 for mounting and fixing the support seat 405 are provided around the four corners of the upper end of the support seat 405. By providing the mounting holes 406 on the support seat 405, it can be mounted and fixed at the corresponding position to increase the stability of the support column 404, thereby ensuring that the components above can work properly.

[0026] During operation, first place the equipment at the corresponding position and install and fix the support seat 405 through the mounting holes 406;

[0027] Then open the control valve outside the feed hopper 102 and introduce the asphalt concrete aggregates from the feed hopper 102 into the screening box 201. Filter the larger particle aggregates through the first filter plate 202, filter the medium-sized aggregates through the second filter plate 203, filter the smaller particle aggregates through the third filter plate 204, and finally make the fine particle aggregates enter the bottom of the screening box 201;

[0028] And during the screening process, synchronously absorb and store the dust generated during the screening of the asphalt concrete aggregates through the dust collection assembly 3. Absorb the dust through the fan 304, inhale the dust into the dust collection box 301 for temporary storage, and block the aggregates through the fourth filter plate 305 at one end of the fan 304 close to the screening assembly 2;

[0029] Finally, introduce the screened aggregates with different particle sizes into the corresponding positions through the first discharge pipe 206 and the second discharge pipe 402. Clean the remaining small amount of aggregates that are not easily discharged by opening the box door 205, and export the dust collected in the dust collection box 301 to the corresponding place through the third discharge pipe 403.

[0030] Through the above steps, the staff first place the equipment at the corresponding position and install and fix the support base 405 through the mounting holes 406. Then, open the control valve outside the feed hopper 102 and introduce the asphalt concrete aggregate from the feed hopper 102 into the screening box 201. By setting the control valve outside the feed hopper 102, the screening process can be carried out in a closed container, which can avoid a large amount of dust overflowing during the screening process, polluting the environment or causing harm to the human body. The larger particles of the aggregate are filtered by the first filter plate 202, the medium-sized aggregate is filtered by the second filter plate 203, and the smaller particles of the aggregate are filtered by the third filter plate 204. Finally, the fine-particle aggregate enters the bottom of the screening box 201. The screening assembly 2 with the first filter plate 202, the second filter plate 203, and the third filter plate 204 can screen the asphalt concrete aggregate according to different particle sizes, so that the aggregates with different particle sizes can be classified and collected to meet different usage requirements. During the screening process, the dust generated during the screening of the asphalt concrete aggregate is simultaneously absorbed and stored by the dust collection assembly 3. The dust is absorbed by the fan 304 and inhaled into the dust collection box 301 for temporary storage. The fourth filter plate 305 at one end of the fan 304 close to the screening assembly 2 blocks the aggregate. Finally, the screened aggregates with different particle sizes are introduced to the corresponding positions through the first discharge pipe 206 and the second discharge pipe 402. The remaining small amount of aggregate that is not easily discharged is cleaned by opening the box door 205. The dust collected in the dust collection box 301 is exported to the corresponding place through the third discharge pipe 403. By setting the dust collection assembly 3, the dust generated during the screening of the asphalt concrete aggregate by the screening assembly 2 can be absorbed and stored, avoiding dust accumulation or adhesion to the inner wall of the screening assembly 2. By setting the screening process in a closed environment and collecting the dust generated during the screening process, the diffusion and pollution of dust can be reduced, and the normal use of the equipment and the screening effect can also be avoided due to dust accumulation or adhesion to the inner wall of the equipment.

[0031] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the gist of the present invention.

Claims

1. An asphalt concrete aggregate screening device, comprising a feeding assembly (1); characterized in that: It also includes a screening component (2), a dust collection component (3) and a support component (4). The right lower part of the lower end of the feeding component (1) is fixedly connected with a screening component (2) for screening asphalt concrete aggregates according to particle size. The left lower part of the lower end of the feeding component (1) is fixedly connected with a dust collection component (3) for collecting dust. The lower ends of the screening component (2) and the dust collection component (3) are fixedly connected with a support component (4) for support.

2. The asphalt concrete aggregate screening equipment according to claim 1, characterized in that: The feeding component (1) includes a top plate (101) and a feeding hopper (102). The upper end of the top plate (101) is fixedly installed with a feeding hopper (102) for guiding asphalt concrete aggregates into the screening component (2). A control valve for controlling the entry and exit of aggregates is arranged outside the feeding hopper (102).

3. An asphalt concrete aggregate screening device according to claim 1, characterized in that: The screening component (2) includes a screening box (201), a first filter plate (202), a second filter plate (203), a third filter plate (204), a box door (205) and a first discharge pipe (206). Inside the screening box (201), a first filter plate (202), a second filter plate (203) and a third filter plate (204) for filtering larger particles, medium particles and smaller particle aggregates respectively are arranged in sequence from top to bottom along the inside. The first filter plate (202), the second filter plate (203) and the third filter plate (204) divide the screening box (201) into four areas.

4. An asphalt concrete aggregate screening device according to claim 3, characterized in that: Corresponding to the four areas divided by the first filter plate (202), the second filter plate (203) and the third filter plate (204), box doors (205) for facilitating the cleaning of aggregates are arranged at the front end of the screening box (201). The first filter plate (202), the second filter plate (203) and the third filter plate (204) are all inclined. At the positions corresponding to the bottoms of the first filter plate (202), the second filter plate (203) and the third filter plate (204) at the right end of the screening box (201), first discharge pipes (206) for discharging the filtered larger, medium and smaller particle aggregates are fixedly connected. Control valves for controlling the entry and exit are arranged outside the first discharge pipes (206).

5. An asphalt concrete aggregate screening device according to claim 1, characterized in that: The dust collection component (3) includes a dust collection box (301), a frame (303), a fan (304) and a fourth filter plate (305). Four groups of through holes (302) matching the four areas of the screening box (201) are evenly arranged from top to bottom at the right end of the dust collection box (301). Inside the through holes (302), a fan (304) for sucking the dust generated during the screening process of the screening component (2) into the dust collection box (301) is embedded. The fan (304) is fixedly connected with the dust collection box (301) through the frame (303). A fourth filter plate (305) for blocking the entry of aggregates is arranged at one end of the frame (303) close to the screening component (2).

6. The asphalt concrete aggregate screening equipment according to claim 1, characterized in that: The support assembly (4) includes a bottom plate (401), a second discharge pipe (402), a third discharge pipe (403), support columns (404) and support seats (405). A third discharge pipe (403) for discharging the dust in the dust collection box (301) is provided at the lower left part of the lower end of the bottom plate (401). A second discharge pipe (402) for discharging the fine particle aggregates at the bottom of the screening box (201) is provided at the lower right part of the lower end of the bottom plate (401). Control valves for controlling the inflow and outflow are provided on the outer sides of the second discharge pipe (402) and the third discharge pipe (403).

7. An asphalt concrete aggregate screening device according to claim 6, characterized in that: Support columns (404) for support are provided around the four corners at the lower end of the bottom plate (401). Support seats (405) for increasing the support stability are provided at the lower ends of the support columns (404). Mounting holes (406) for mounting and fixing the support seats (405) are provided around the four corners of the upper end of the support seats (405).

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