Asphalt powder fineness screening device

Abstract

The utility model belongs to the technical field of asphalt powder screening, and discloses an asphalt powder fineness screening device which comprises a supporting assembly used for sealing a screening environment and supporting rotary screening, and a rotating assembly used for rotary material conveying and grading screening is rotationally installed in the supporting assembly. The blockage clearing assembly is arranged on the rotating assembly and used for scraping and brushing back and forth in the rotating screening process; and the unblocking assembly comprises a sliding rail, a brush plate is installed on the sliding rail in a sliding mode, bristles are arranged on the lower face of the brush plate, and a sliding block is arranged in the middle of the upper face of the brush plate. According to the asphalt powder fineness screening device, due to the arrangement of scraping, brushing and unblocking in the rotary screening process, asphalt powder blocked on the screen drum is brushed off, and the situation that the screening effect is affected due to the fact that the screen drum is blocked is avoided; through the arrangement of the front-back reciprocating scraping brush, the blockage clearing effect is improved; and through the arrangement of the bristles on the arc-shaped bottom surface, the bristles are more attached to the screen drum, and the blockage clearing effect is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of asphalt powder screening, in particular to an asphalt powder fineness screening device. Background Art

[0002] Asphalt powder, also known as asphalt micropowder, is a powdered substance made by processing asphalt through a specific process. It is mainly composed of components such as asphaltene, resin and mineral oil, which give it unique physical and chemical properties; asphalt powder fineness screening is an important link in the asphalt powder production process, which determines the final particle size and quality of the asphalt powder. Asphalt powder fineness screening refers to the process of grading asphalt powder according to particle size through specific screening equipment. Its main purpose is to ensure that the particle size distribution of asphalt powder meets specific requirements to meet the application needs of different fields. Through screening, coarse particles and impurities in the asphalt powder can be removed, and the purity and uniformity of the asphalt powder can be improved.

[0003] In comparison, the Chinese patent with authorization announcement number CN220919872U discloses a grading screening device for asphalt production and processing, including a shell, which is composed of a first screening box, a second screening box and a third screening box. The first screening box, the second screening box and the third screening box are arranged in parallel and at intervals on the shell, and a screening cylinder is movably connected in the middle of the first screening box, the second screening box and the third screening box for grading and screening asphalt raw materials.

[0004] The above patent cannot clean the screen drum during the screening process, and the screen drum will be blocked, which will affect the screening effect. Therefore, a new device needs to be designed. Utility Model Content

[0005] The purpose of the utility model is to provide an asphalt powder fineness screening device to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] An asphalt powder fineness screening device includes a support assembly for enclosing a screening environment and supporting rotary screening, a rotating assembly for rotary feeding and graded screening being rotatably mounted within the support assembly, and a blockage removal assembly disposed on the rotating assembly for reciprocating scraping and brushing during the rotary screening process;

[0008] The blockage clearing assembly includes a slide rail, a brush plate is slidably mounted on the slide rail, bristles are provided under the brush plate, a slider is provided in the middle position above the brush plate, a drive ring is provided above the slider, a drive column is provided in the drive ring, a crank is provided on the drive column, and a second motor is installed on the crank.

[0009] Furthermore: the support assembly includes a frame, a partition structure is provided on the frame, a feed hopper is provided in front of the partition structure, a discharge pipe is provided behind the partition structure, two pairs of friction rollers are symmetrically provided at the bottom of the partition structure, and a first motor is installed in front of a pair of friction rollers.

[0010] Furthermore, the rotating assembly includes a drum structure, two rotating rings are symmetrically provided at the front and rear ends of the drum structure, and a conveying blade is provided inside the drum structure.

[0011] Furthermore, the partition structure includes a screening box, four partitions are evenly arranged in the screening box, and a discharge hopper is arranged between two adjacent partitions.

[0012] Furthermore, the drum structure includes a first screen drum, a second screen drum is arranged behind the first screen drum, and a third screen drum is arranged behind the second screen drum.

[0013] Furthermore: the bottom surface of the bristles is a curved surface and fits the surface of the roller structure.

[0014] Compared with the prior art, the beneficial effects are:

[0015] 1. Through the setting of scraping and clearing blockage during the rotating screening process, the asphalt powder blocked on the screen drum can be brushed off to avoid the blockage of the screen drum affecting the screening effect;

[0016] 2. The blockage clearing effect is improved by setting the scraping brush back and forth;

[0017] 3. The curved bottom bristles make the bristles fit the screen drum more closely, further improving the blockage clearing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of an asphalt powder fineness screening device according to the utility model;

[0019] Figure 2 This is a schematic diagram of a support assembly of an asphalt powder fineness screening device according to the present invention;

[0020] Figure 3 This is a schematic diagram of a rotating assembly of an asphalt powder fineness screening device according to the present invention;

[0021] Figure 4 It is a schematic diagram of a blockage clearing component of an asphalt powder fineness screening device described in the utility model.

[0022] In the accompanying drawings: 101, frame; 102, screening box; 103, partition; 104, discharge hopper; 105, feed hopper; 106, discharge pipe; 107, friction roller; 108, first motor; 201, first screen drum; 202, second screen drum; 203, third screen drum; 204, rotating ring; 205, feed blade; 301, slide rail; 302, brush plate; 303, brush bristles; 304, slider; 305, drive ring; 306, drive column; 307, crank; 308, second motor. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1-4 , an asphalt powder fineness screening device, including a support assembly for closing the screening environment and supporting the rotating screening, a rotating assembly for rotating feeding and graded screening is rotatably installed in the support assembly, and also includes a clearing assembly arranged on the rotating assembly for scraping back and forth during the rotating screening process.

[0025] In this embodiment: the supporting assembly includes a frame 101, a partition structure is provided on the frame 101, a feed hopper 105 is provided in front of the partition structure, a discharge pipe 106 is provided behind the partition structure, two pairs of friction rollers 107 are symmetrically provided at the bottom of the partition structure, a first motor 108 is installed in front of a pair of friction rollers 107, and the partition structure includes a screening box 102, four partitions 103 are evenly arranged in the screening box 102, and a discharge hopper 104 is provided between two adjacent partitions 103. When in use, the asphalt powder is poured into the drum structure through the feed hopper 105, and then the frame 101 supports the first motor 108 to drive the friction rollers 107 to rotate, and the friction rollers 107 drive the rotating assembly to rotate through friction, so as to grade and screen the asphalt powder, and the screened asphalt powder falls into the screening box 102 and is discharged through the corresponding discharge hopper 104 below under the separation of the partition 103, and the unscreened part is discharged through the discharge pipe 106;

[0026] In this embodiment, the rotating assembly includes a drum structure, with two rotating rings 204 symmetrically provided at the front and rear ends of the drum structure, a conveying blade 205 provided in the drum structure, and the drum structure including a first screen drum 201, a second screen drum 202 provided behind the first screen drum 201, and a third screen drum 203 provided behind the second screen drum 202. The friction roller 107 drives the rotating ring 204 and the drum structure to rotate through friction, so that the asphalt powder is pushed by the conveying blade 205 and passes through the first screen drum 201, the second screen drum 202 and the third screen drum 203 in sequence for graded screening;

[0027] The cam 308 of the embodiment of the present invention is provided with a plurality of motors 308, and the motor 308 of the embodiment of the present invention is provided with a plurality of motors 308. The motor 308 of the embodiment of the present invention is provided with a plurality of motors 308, and the motor 308 of the embodiment of the present invention is provided with a plurality of motors 308. The motor 308 of the embodiment of the present invention is provided with a plurality of motors 308, and the motor 308 of the embodiment of the present invention is provided with a plurality of motors 308.

[0028] Working principle: When in use, the asphalt powder is poured into the drum structure through the feed hopper 105, and then the frame 101 supports the first motor 108 to drive the friction roller 107 to rotate. The friction roller 107 drives the rotating ring 204 and the drum structure to rotate through friction, so that the asphalt powder is pushed by the feeding blade 205 and screened by the first screen drum 201, the second screen drum 202 and the third screen drum 203 in sequence. The screened asphalt powder falls into the screening box 102 and is discharged through the corresponding discharge hopper 104 below under the separation of the partition 103. The unscreened asphalt powder The asphalt powder that is blocked in the sieve holes of the first sieve drum 201, the second sieve drum 202 and the third sieve drum 203 are brushed off to ensure the screening effect. At the same time, the curved bottom surface of the brush 303 improves the clearing effect.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An asphalt powder fineness screening device, comprising a support assembly for enclosing a screening environment and supporting rotary screening, wherein a rotating assembly for rotary feeding and graded screening is rotatably mounted within the support assembly, characterized in that: It also includes a blockage clearing component provided on the rotating component for scraping back and forth during the rotating screening process; The blockage clearing assembly comprises a slide rail (301), a brush plate (302) is slidably mounted on the slide rail (301), bristles (303) are arranged below the brush plate (302), a slider (304) is arranged in the middle position above the brush plate (302), a driving ring (305) is arranged above the slider (304), a driving column (306) is arranged inside the driving ring (305), a crank (307) is arranged above the driving column (306), and a second motor (308) is mounted above the crank (307).

2. The asphalt powder fineness screening device according to claim 1, characterized in that: The support assembly comprises a frame (101), a partition structure is provided on the frame (101), a feed hopper (105) is provided in front of the partition structure, a discharge pipe (106) is provided behind the partition structure, two pairs of friction rollers (107) are symmetrically provided at the bottom of the partition structure, and a first motor (108) is installed in front of a pair of friction rollers (107).

3. The asphalt powder fineness screening device according to claim 1, characterized in that: The rotating assembly comprises a drum structure, two rotating rings (204) are symmetrically arranged at the front and rear ends of the drum structure, and a material conveying blade (205) is arranged inside the drum structure.

4. The asphalt powder fineness screening device according to claim 2, characterized in that: The partition structure comprises a screening box (102), four partitions (103) are evenly arranged in the screening box (102), and a discharge hopper (104) is arranged between two adjacent partitions (103).

5. The asphalt powder fineness screening device according to claim 3, characterized in that: The drum structure comprises a first sieve drum (201), a second sieve drum (202) is arranged behind the first sieve drum (201), and a third sieve drum (203) is arranged behind the second sieve drum (202).

6. The asphalt powder fineness screening device according to claim 3, characterized in that: The bottom surface of the bristles (303) is a curved surface and fits the surface of the roller structure.

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