Classified screening device for asphalt production and processing

Abstract

The utility model provides a classified screening device for asphalt production and processing, belongs to the technical field of asphalt production equipment, and solves the problems that a lot of dust is generated in the screening process of asphalt and the asphalt can generate harmful gas at the same time. The graded screening device for asphalt production and processing comprises a smashing machine body, two mounting plates are fixed to the smashing machine body, a first screening plate and a second screening plate are slidably connected to the mounting plates, vibrating mechanisms are arranged between the first screening plate and the mounting plates and between the second screening plate and the mounting plates, a mounting frame is slidably connected to the mounting plates, and a water tank is fixed to the mounting frame; a plurality of water spraying pipes are fixed on the water tank, water pumps are fixed in the water spraying pipes, a dust suction box is detachably arranged on the mounting frame, an air box is fixed on the dust suction box, and a plurality of dust suction pipes are fixed on the dust suction box. The asphalt screening device has the advantage that dust and harmful gas generated in the asphalt screening process are prevented from drifting in the air.

Description

Technical Field

[0001] The utility model belongs to the technical field of asphalt production equipment, and relates to a grading and screening device, in particular to a grading and screening device for asphalt production and processing. Background Art

[0002] Asphalt is a dark brown complex mixture composed of hydrocarbon compounds with different molecular weights and their non-metallic derivatives. It is a kind of highly viscous organic liquid, mostly existing in the form of liquid or semi-solid petroleum. Its surface is black and it is soluble in carbon disulfide and carbon tetrachloride.

[0003] After retrieval, as disclosed in a Chinese patent document, a grading and screening device for asphalt production and processing

Application No.: 202321031149.7; Publication No.: CN 219880552 U

[0004] Although two sets of the first motor and the cam are provided for the first sieve plate and the second sieve plate disclosed in this patent, the first sieve plate and the second sieve plate can be vibrated simultaneously, and asphalts of different sizes can be screened and discharged through the first guide plate and the second guide plate respectively, thus achieving the effect of layered screening of asphalt. However, a lot of dust will be generated and scattered everywhere during the screening process of asphalt, and at the same time, harmful gases will be produced by asphalt. Summary of the Utility Model

[0005] The purpose of the present utility model is to address the above problems existing in the prior art and propose a grading and screening device for asphalt production and processing. The technical problem to be solved by this utility model is: how to prevent the dust and harmful gases generated during the screening process of asphalt from floating in the air.

[0006] The purpose of the present utility model can be achieved by the following technical solutions:

[0007] A grading and screening device for asphalt production and processing, including a shredder body. A rotating shaft extending into the interior of the mixer body is rotatably connected to the shredder body. Shredding knives are fixed on the rotating shaft. An inclined feed port is fixed on the shredder body. Two mounting plates are fixed on the shredder body. A first sieve plate and a second sieve plate are slidably connected to the mounting plates. A vibration mechanism is arranged between the first sieve plate and the second sieve plate and the mounting plates. A mounting frame is slidably connected to the mounting plates. A water tank is fixed on the mounting frame. A plurality of water spray pipes are fixed on the water tank. Water pumps are fixed in the water spray pipes. A dust suction box is detachably mounted on the mounting frame. An air box is fixed on the dust suction box. A plurality of dust suction pipes are fixed on the dust suction box.

[0008] The working principle of the utility model is as follows: Place the asphalt in the shredder body. Rotate the rotating shaft to make the shredding knives shred the asphalt. The shredded asphalt falls onto the first sieve plate through the inclined feed port. Through the vibration mechanism, the first sieve plate and the second sieve plate are driven to vibrate. The larger asphalt after being screened by the first sieve plate stays on the first sieve plate, and the smaller asphalt is filtered by the first sieve plate onto the second sieve plate. Then, the smaller asphalt is further screened and filtered by the second sieve plate. During the screening process, dust will be generated. The water in the water tank is evenly sprayed on the asphalt through the water spray pipes to prevent the dust from floating in the air. Then, start the air box to suck the harmful gases and part of the dust into the dust suction box through the dust suction pipes for filtration.

[0009] The vibration mechanism includes a plurality of sliding openings opened on the mounting plates. Two mounting grooves are opened on the mounting plates. A first motor is fixed in the mounting grooves. A turntable is fixed at the output shaft end of the first motor. Two convex blocks are fixed on the turntable. Arc-shaped blocks extending out of the sliding openings are fixed on both the first sieve plate and the second sieve plate. The arc-shaped blocks are in contact with the convex blocks. Springs are fixed at both the upper and lower ends of the sliding openings. The other ends of the two springs are respectively fixed to the upper and lower ends of the arc-shaped blocks.

[0010] With the above structure, by installing the arc-shaped blocks and the convex blocks, start the first motor to drive the turntable to rotate. When the convex blocks on the turntable rotate to be in contact with the upper and lower arc-shaped blocks, the first sieve plate and the second sieve plate move up and down respectively. When the convex blocks leave the arc-shaped blocks, the first sieve plate and the second sieve plate vibrate due to the elastic force of the springs, realizing the screening of the asphalt.

[0011] A sliding groove is opened on the mounting plates. A second motor is fixed on the mounting plates. A lead screw extending into the sliding groove is fixed at the output shaft end of the second motor. The lead screw is threadedly connected to the mounting frame.

[0012] With the above structure, by installing the lead screw, start the second motor to drive the lead screw to rotate. The mounting frame on the lead screw reciprocates above the first sieve plate, realizing the uniform spraying of water and dust suction.

[0013] One of the turntables is fixed with a fixed column, and both the fixed column and the rotating shaft are fixed with pulleys. The two pulleys are connected by a belt drive.

[0014] With the above structure, by installing a belt, the rotation of the turntable drives the rotation of the rotating shaft through the belt, realizing the vibration screening of asphalt while crushing it.

[0015] A blower is fixed inside the air box, an activated carbon layer is fixed at the air outlet of the air box, and a dust-proof net is fixed at the connection between the air box and the dust suction box.

[0016] With the above structure, by installing an activated carbon layer and a dust-proof net, the dust is filtered in the dust suction box, and the harmful gases sucked into the dust suction box are filtered by the activated carbon layer.

[0017] The mounting frame is provided with an insertion interface, the lower end of the dust suction box is fixed with an insertion block, and the mounting frame and the insertion block are fixedly connected by bolts.

[0018] With the above structure, by installing the insertion block, the disassembly and installation of the dust suction box are realized, which is convenient for pouring out the dust in the dust suction box.

[0019] Compared with the prior art, the grading and screening device for asphalt production and processing has the following advantages:

[0020] 1. Place the asphalt in the body of the crusher. Rotate the rotating shaft to make the crushing knife crush the asphalt. The crushed asphalt falls on the first sieve plate through the inclined material outlet. Through the vibration mechanism, the first sieve plate and the second sieve plate are driven to vibrate. The larger asphalt after screening by the first sieve plate stays on the first sieve plate, and the smaller asphalt is filtered by the first sieve plate onto the second sieve plate. Then, the smaller asphalt is further screened and filtered by the second sieve plate. During the screening process, dust is generated. The water in the water tank is evenly sprayed on the asphalt through the water spray pipe to prevent the dust from floating in the air. Then, start the air box to suck the harmful gases and some dust into the dust suction box through the dust suction pipe for filtration.

[0021] 2. By installing the arc-shaped block and the convex block, start the first motor to drive the turntable to rotate. When the convex block on the turntable rotates to fit with the upper and lower arc-shaped blocks, the first sieve plate and the second sieve plate move up and down respectively. When the convex block leaves the arc-shaped block, the first sieve plate and the second sieve plate vibrate through the elastic force of the spring, realizing the screening of asphalt. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is the overall structural schematic diagram of the present invention.

[0023] Figure 2 is the top view of the present invention.

[0024] Figure 3It is a side view of the present utility model.

[0025] Figure 4 It is a cross-sectional view of the mounting bracket in the present utility model.

[0026] In the figure, 1 is the shredder body; 2 is the rotating shaft; 3 is the shredding knife; 4 is the inclined feed opening; 5 is the mounting plate; 6 is the first sieve plate; 7 is the second sieve plate; 8 is the mounting bracket; 9 is the water tank; 10 is the water spray pipe; 11 is the dust suction box; 12 is the air box; 13 is the first motor; 14 is the turntable; 15 is the convex block; 16 is the arc-shaped block; 17 is the spring; 18 is the chute; 19 is the lead screw; 20 is the fixed column; 21 is the pulley; 22 is the belt; 23 is the fan; 24 is the activated carbon layer; 25 is the dust-proof net; 26 is the socket; 27 is the plug-in block; 28 is the bolt; 29 is the dust suction pipe; 30 is the second motor; 31 is the sliding opening. Detailed implementation manners

[0027] The following are specific embodiments of the present utility model and, in combination with the accompanying drawings, further describe the technical solutions of the present utility model, but the present utility model is not limited to these embodiments.

[0028] As Figures 1-4 shown, the grading and screening device for asphalt production and processing includes a shredder body 1. A rotating shaft 2 extending into the interior of the mixer body is rotatably connected to the shredder body 1. A shredding knife 3 is fixed on the rotating shaft 2. An inclined feed opening 4 is fixed on the shredder body 1. Two mounting plates 5 are fixed on the shredder body 1. A first sieve plate 6 and a second sieve plate 7 are slidably connected to the mounting plates 5. A vibration mechanism is provided between the first sieve plate 6 and the second sieve plate 7 and the mounting plates 5. A mounting bracket 8 is slidably connected to the mounting plates 5. A water tank 9 is fixed on the mounting bracket 8. A plurality of water spray pipes 10 are fixed on the water tank 9. A water pump is fixed in the water spray pipes 10. A dust suction box 11 is detachably mounted on the mounting bracket 8. An air box 12 is fixed on the dust suction box 11. A plurality of dust suction pipes 29 are fixed on the dust suction box 11.

[0029] Place the asphalt in the shredder body 1. Rotate the rotating shaft 2 to make the shredding knife 3 shred the asphalt. The shredded asphalt falls onto the first sieve plate 6 through the inclined feed opening 4. Through the vibration mechanism, drive the first sieve plate 6 and the second sieve plate 7 to vibrate. The larger asphalt screened by the first sieve plate 6 stays on the first sieve plate 6, and the smaller asphalt is filtered by the first sieve plate 6 onto the second sieve plate 7. Then, the smaller asphalt is further screened and filtered by the second sieve plate 7. During the screening process, dust will be generated. Sprinkle the water in the water tank 9 evenly on the asphalt through the water spray pipes 10 to prevent the dust from floating in the air. Then start the air box 12 to suck the harmful gases and some dust into the dust suction box 11 through the dust suction pipes 29 for filtration.

[0030] The vibration mechanism includes a plurality of slides 31 provided on the mounting plate 5, the mounting plate 5 is provided with two mounting grooves, a motor 13 is fixed in the mounting groove, a turntable 14 is fixed at the output shaft end of the motor 13, two protrusions 15 are fixed on the turntable 14, an arc block 16 extending out of the slide is fixed on the sieve plate 1 6 and the sieve plate 2 7, the arc block 16 is fitted with the protrusion 15, springs 17 are fixed at both upper and lower ends of the slide 31, and the other ends of the two springs 17 are respectively fixed to the upper and lower ends of the arc block 16.

[0031] With the above structure, by installing the arc block 16 and the protrusion 15, starting the motor 13, driving the turntable 14 to rotate, when the protrusion 15 on the turntable 14 rotates to fit with the upper and lower arc blocks 16, the sieve plate 1 6 and the sieve plate 2 7 move up and down respectively, and when the protrusion 15 leaves the arc block 16, the elastic force of the spring 17 makes the sieve plate 1 6 and the sieve plate 2 7 vibrate, thereby realizing the screening of asphalt.

[0032] A slide groove 18 is provided on the mounting plate 5 , a second motor 30 is fixed on the mounting plate 5 , a lead screw 19 extending into the slide groove 18 is fixed to the output shaft end of the second motor 30 , and the lead screw 19 is threadedly connected to the mounting frame 8 .

[0033] With the above structure, by installing the lead screw 19, starting the motor 2 30, driving the lead screw 19 to rotate, the mounting frame 8 on the lead screw 19 reciprocates above the sieve plate 1 6, thereby achieving uniform water spraying and dust collection.

[0034] A fixing column 20 is fixed on one of the rotating disks 14 , and pulleys 21 are fixed on the fixing column 20 and the rotating shaft 2 . The two pulleys 21 are connected by a belt 22 .

[0035] With the above structure, by installing the belt 22, the turntable 14 rotates and the rotating shaft 2 is driven by the belt to rotate, thereby achieving vibration screening of the asphalt while crushing the asphalt.

[0036] A fan 23 is fixed in the wind box 12 , an activated carbon layer 24 is fixed at the air outlet of the wind box 12 , and a dustproof net 25 is fixed at the connection between the wind box 12 and the dust collection box 11 .

[0037] With the above structure, by installing the activated carbon layer 24 and the dustproof net 25 , dust can be filtered in the dust box 11 , and harmful gases sucked into the dust box 11 can be filtered through the activated carbon layer 24 .

[0038] The mounting frame 8 is provided with an insertion port 26 , a plug-in block 27 is fixed to the lower end of the dust collection box 11 , and the mounting frame 8 and the plug-in block 27 are fixedly connected by bolts 28 .

[0039] With the above structure, by installing the plug-in block 27 , the dust box 11 can be disassembled and installed, and the dust in the dust box 11 can be easily poured out.

[0040] Working principle of the utility model: Place the asphalt in the crusher body 1, start the first motor 13, drive the turntable 14 to rotate. When the convex block 15 on the turntable 14 rotates to fit with the upper and lower arc-shaped blocks 16, the first sieve plate 6 and the second sieve plate 7 move up and down respectively. When the convex block 15 leaves the arc-shaped block 16, the first sieve plate 6 and the second sieve plate 7 vibrate by the elastic force of the spring 17. The rotation of the turntable 14 drives the rotating shaft 2 to rotate through the belt, so that the crushing knife 3 crushes the asphalt. The crushed asphalt falls on the first sieve plate 6 through the inclined material port 4. The larger asphalt after screening by the first sieve plate 6 stays on the first sieve plate 6, and the smaller asphalt is filtered onto the second sieve plate 7 by the first sieve plate 6, and then the smaller asphalt is screened and filtered by the second sieve plate 7. Dust will be generated during the screening process. The water in the water tank 9 is evenly sprayed on the asphalt through the water spray pipe 10 to prevent the dust from floating in the air. Then start the air box 12, so that the harmful gases and part of the dust are sucked into the dust collection box 11 through the dust suction pipe 29 for filtering.

[0041] In summary, through the water spray pipe and the dust collection box, the function of preventing the dust and harmful gases generated during the screening process of the asphalt from floating in the air is realized.

[0042] The specific embodiments described herein are merely illustrative of the spirit of the utility model. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the utility model or exceed the scope defined by the appended claims.

Claims

1. A classification and screening device for asphalt production and processing, comprising a shredder body (1), characterized in that, A rotating shaft (2) extending into the interior of the shredder body (1) is rotatably connected to the shredder body (1). A shredding knife (3) is fixed on the rotating shaft (2). An inclined feed port (4) is fixed on the shredder body (1). Two mounting plates (5) are fixed on the shredder body (1). A first sieve plate (6) and a second sieve plate (7) are slidably connected to the mounting plate (5). A vibration mechanism is provided between the first sieve plate (6) and the second sieve plate (7) and the mounting plate (5). A mounting frame (8) is slidably connected to the mounting plate (5). A water tank (9) is fixed on the mounting frame (8). A plurality of water spray pipes (10) are fixed on the water tank (9). A water pump is fixed inside the water spray pipe (10). A dust suction box (11) is detachably mounted on the mounting frame (8). An air box (12) is fixed on the dust suction box (11). A plurality of dust suction pipes (29) are fixed on the dust suction box (11).

2. The grading and screening device for asphalt production and processing according to claim 1, wherein, The vibration mechanism includes a plurality of sliding openings (31) formed in the mounting plate (5). Two mounting grooves are formed in the mounting plate (5). A first motor (13) is fixed in the mounting groove. A turntable (14) is fixed to the output shaft end of the first motor (13). Two convex blocks (15) are fixed on the turntable (14). Arc-shaped blocks (16) extending out of the sliding openings (31) are fixed on both the first sieve plate (6) and the second sieve plate (7). The arc-shaped blocks (16) are in contact with the convex blocks (15). Springs (17) are fixed to both the upper and lower ends inside the sliding openings (31). The other ends of the two springs (17) are respectively fixed to the upper and lower ends of the arc-shaped blocks (16).

3. A grading and screening device for asphalt production and processing according to claim 1, characterized in that, A sliding groove (18) is formed in the mounting plate (5). A second motor (30) is fixed on the mounting plate (5). A lead screw (19) extending into the sliding groove (18) is fixed to the output shaft end of the second motor (30). The lead screw (19) is threadedly connected to the mounting frame (8).

4. A classification and screening device for asphalt production and processing according to claim 2, wherein, A fixed column (20) is fixed on one of the turntables (14). Pulley wheels (21) are fixed on both the fixed column (20) and the rotating shaft (2). The two pulley wheels (21) are connected by a belt (22) for transmission.

5. A grading and screening device for asphalt production and processing according to claim 1, characterized in that, A blower (23) is fixed inside the air box (12). An activated carbon layer (24) is fixed to the air outlet of the air box (12). A dust-proof net (25) is fixed at the connection between the air box (12) and the dust suction box (11).

6. A grading and screening device for asphalt production and processing according to claim 1, characterized in that, An insertion opening (26) is formed in the mounting frame (8). A plug-in block (27) is fixed to the lower end of the dust suction box (11). The mounting frame (8) and the plug-in block (27) are fixedly connected by bolts (28).

Images