Blocky impurity crushing and screening device

Abstract

The utility model relates to a blocky impurity crushing and screening device, which belongs to the field of screening equipment and comprises a frame, a crushing barrel, a crushing roller, a screening mechanism and a blanking device. The crushing barrel is arranged on the rack; the two crushing rollers are symmetrically arranged and rotationally arranged in the crushing barrel. A driving mechanism for driving the crushing rollers to rotate is arranged on the rack; the screening mechanism is rotationally arranged on the rack and located below the crushing barrel. A transmission mechanism for driving the screening mechanism to rotate is arranged on the driving mechanism; the discharging device is arranged at the lower end of the crushing barrel, and the output end is located in the screening mechanism. A feeding hopper is arranged at the upper end of the crushing barrel; the section of the feeding hopper is of a trapezoidal structure, and asphalt blocks can be conveniently poured into the crushing barrel through the feeding hopper to be crushed. According to the utility model, the crushed asphalt slag is screened by the screening mechanism according to the size of the asphalt slag, so that asphalt with multiple sizes is screened out.

Description

Technical Field

[0001] The utility model relates to the field of screening equipment, in particular to a block impurity crushing and screening device. Background Art

[0002] Asphalt is a dark brown complex mixture of hydrocarbons of different molecular weights and their non-metallic derivatives. It is a kind of high-viscosity organic liquid. It is in liquid state, black on the surface, and soluble in carbon disulfide. Asphalt is an organic gelling material that is waterproof, moisture-proof and anti-corrosive. Asphalt can be mainly divided into three types: coal tar asphalt, petroleum asphalt and natural asphalt. Among them, coal tar asphalt is a by-product of coking, petroleum asphalt is the residue after crude oil distillation, and natural asphalt is stored underground. Some form mineral layers or accumulate on the surface of the earth's crust. Asphalt is mainly used in industries such as coatings, plastics, rubber, and paving roads. The existing asphalt crushing and impurity screening devices mostly screen the crushed asphalt manually through a screen. Manual screening is inefficient, time-consuming and labor-intensive, and reduces work efficiency.

[0003] The Chinese patent with the announcement number CN220277550U discloses a block asphalt crushing impurity screening device, including a crushing box, a box body and two bevel gears, the top of the box body is fixedly connected with a mounting frame, the middle of the mounting frame is fixedly connected with a mounting ring, the middle of the mounting ring is fixedly connected with two servo motors, the output end of the two servo motors is fixedly connected with a rotating shaft, the upper and lower parts of the outer wall of the rotating shaft are fixedly connected with stirring rods, and the upper and lower parts of the inner wall of the box body are slidably connected with filter plates. In the utility model, the filter plate is made to reciprocate to screen the crushed asphalt on the surface of the filter plate, reducing the manual workload, saving time and effort, improving work efficiency, achieving full crushing of the asphalt, increasing the breaking points of the crushing roller to break and crush the asphalt, thereby increasing the crushing effect of the device on the asphalt, making it crush the asphalt more finely.

[0004] However, in the above technical solution, it is impossible to screen the asphalt according to the size of the crushed asphalt, and only simple screening work can be performed. Utility Model Content

[0005] The utility model aims at solving the problems existing in the background technology and proposes a block impurity crushing and screening device which can screen the crushed asphalt residue according to its size through a screening mechanism to screen out asphalt of multiple sizes.

[0006] The technical solution of the utility model is: a block impurity crushing and screening device, comprising:

[0007] frame;

[0008] A crushing barrel is arranged on the frame;

[0009] Two crushing rollers are symmetrically arranged and both are rotatably arranged in the crushing barrel; a driving mechanism for driving the crushing rollers to rotate is arranged on the frame;

[0010] The screening mechanism is rotatably arranged on the frame and located below the crushing barrel; the driving mechanism is provided with a transmission mechanism for driving the screening mechanism to rotate;

[0011] The feeding device is arranged at the lower end of the crushing barrel, and the output end is located in the screening mechanism.

[0012] Preferably, the screening mechanism comprises a rotating shaft rotatably arranged on a frame, two supporting frames both arranged on the rotating shaft, and a conical screen connected to the two supporting frames.

[0013] Preferably, the material discharge device comprises a material discharge hopper which is arranged at the lower end of the crushing barrel and has an inclined lower end, and a guide frame which has a semi-arc structure and one end is connected to the lower end of the material discharge hopper and the other end is located in the conical screen.

[0014] Preferably, a splash plate is provided at the small end of the conical screen.

[0015] Preferably, the driving mechanism includes a driving motor arranged on the frame, a driving gear connected to the output end of the driving motor, and two driven gears respectively arranged on the two crushing rollers; the two driven gears are meshed with each other, and one of the driven gears is meshed with the driving gear.

[0016] Preferably, a support shaft is provided on the crushing roller, and a driven gear is provided on the support shaft; the transmission mechanism comprises a driving pulley provided on the support shaft, a driven pulley provided on the rotating shaft, and a transmission belt provided on the driving pulley and the driven pulley.

[0017] Preferably, a feed hopper is provided at the upper end of the crushing barrel; the cross section of the feed hopper is a trapezoidal structure.

[0018] Compared with the prior art, the utility model has the following beneficial technical effects:

[0019] In the utility model, the crushing roller is driven to rotate by a driving mechanism, so that the crushing roller crushes the asphalt block. The driving mechanism drives the crushing roller to rotate and drives the conical screen to rotate through the transmission mechanism at the same time, so that the asphalt residue rolls in the conical screen. Since the conical screen has a conical structure, the asphalt residue moves toward the large end when rolling. When moving, it is gradually screened from small to large, so that the asphalt residue close to the small end is smaller in size, and the asphalt residue closer to the large end is larger in size. The asphalt that cannot be filtered will be discharged from the large end of the conical screen and can be put into the crushing barrel again for crushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is a schematic diagram of the structure of an embodiment of the utility model;

[0021] Figure 2 It is a schematic diagram of the partial structure of an embodiment of the utility model;

[0022] Figure 3 for Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0023] Figure numerals: 1. frame; 2. crushing barrel; 3. feed hopper; 4. crushing roller; 5. driving mechanism; 501. driving motor; 502. driving gear; 503. driven gear; 6. transmission mechanism; 601. driving pulley; 602. transmission belt; 603. driven pulley; 7. screening mechanism; 701. conical screen; 702. support frame; 703. rotating shaft; 8. lower hopper; 9. guide frame; 10. splash plate. DETAILED DESCRIPTION

[0024] Embodiment 1

[0025] like Figure 1-Figure 3 As shown, the utility model proposes a block impurity crushing and screening device, comprising a frame 1, a crushing barrel 2, a crushing roller 4, a screening mechanism 7 and a feeding device;

[0026] The crushing barrel 2 is arranged on the frame 1; two crushing rollers 4 are symmetrically arranged and both are rotatably arranged in the crushing barrel 2; a driving mechanism 5 for driving the crushing rollers 4 to rotate is arranged on the frame 1; a screening mechanism 7 is rotatably arranged on the frame 1 and is located below the crushing barrel 2; a transmission mechanism 6 for driving the screening mechanism 7 to rotate is arranged on the driving mechanism 5; a feeding device is arranged at the lower end of the crushing barrel 2, and an output end is located in the screening mechanism 7. A feed hopper 3 is arranged at the upper end of the crushing barrel 2; the cross section of the feed hopper 3 is a trapezoidal structure, and the feed hopper 3 can conveniently pour asphalt blocks into the crushing barrel 2 for crushing.

[0027] The screening mechanism 7 includes a rotating shaft 703 rotatably arranged on the frame 1, two supporting frames 702 both arranged on the rotating shaft 703, and a conical screen 701 connected to the two supporting frames 702; the conical screen 701 is provided with filter holes, and the diameter of the filter holes gradually increases away from the small end. The feeding device includes a lower hopper 8 arranged at the lower end of the crushing barrel 2 and with an inclined lower end, and a guide frame 9 with a semi-arc structure, one end of which is connected to the lower end of the lower hopper 8 and the other end is located in the conical screen 701. A splash plate 10 is provided at the small end of the conical screen 701.

[0028] In this embodiment, the asphalt block is poured into the crushing barrel 2, and the crushing roller 4 is driven to rotate by the driving mechanism 5, so that the two crushing rollers 4 engage with each other to crush the asphalt block. The crushed asphalt residue falls into the lower hopper 8, and is guided by the lower hopper 8 to fall into the guide frame 9. The guide frame 9 has a semi-arc structure, so that the guide frame 9 can guide the asphalt residue, so that the asphalt residue falls to the small end of the conical screen 701, and the splash plate 10 can prevent the asphalt residue from falling into and splashing out from the small end.

[0029] While the driving mechanism 5 drives the crushing roller 4 to rotate, it drives the rotating shaft 703 to rotate through the transmission mechanism 6, and the rotating shaft 703 drives the support frame 702 to rotate, and the support frame 702 drives the conical screen 701 to rotate, so that the asphalt residue rolls in the conical screen 701. Since the conical screen 701 has a conical structure, the asphalt residue will move toward the large end when rolling. When moving, it will gradually be screened from small to large, so that the asphalt residue close to the small end is smaller in size, and the asphalt residue closer to the large end is larger in size. The asphalt that cannot be filtered will be discharged from the large end of the conical screen 701, and can be put into the crushing barrel 2 again for crushing.

[0030] Embodiment 2

[0031] like Figure 1-Figure 3 As shown, the block impurity crushing and screening device proposed by the utility model, compared with the first embodiment, the driving mechanism 5 in this embodiment includes a driving motor 501 arranged on the frame 1, a driving gear 502 connected to the output end of the driving motor 501, and two driven gears 503 respectively arranged on two crushing rollers 4; the two driven gears 503 are meshed and connected with each other, and one of the driven gears 503 is meshed and connected with the driving gear 502. The crushing roller 4 is provided with a support shaft, and the driven gear 503 is arranged on the support shaft; the transmission mechanism 6 includes a driving pulley 601 arranged on the support shaft, a driven pulley 603 arranged on the rotating shaft 703, and a transmission belt 602 arranged on the driving pulley 601 and the driven pulley 603.

[0032] In this embodiment, the driving motor 501 drives the driving gear 502 to rotate, the driving gear 502 drives the driven gear 503 to rotate, the driven gear 503 drives the supporting shaft to rotate, the supporting shaft drives the crushing roller 4 to rotate, so that the crushing roller 4 can crush the asphalt block. At the same time, the driving pulley 601 is driven to rotate through the supporting shaft, the driving pulley 601 drives the driven pulley 603 to rotate through the transmission belt 602, and the driven pulley 603 drives the screening mechanism 7 to rotate, and the screening mechanism 7 screens the crushed asphalt residue and screens it out according to size.

[0033] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A device for crushing and screening blocky impurities, It is characterized in that include: Rack (1); A crushing barrel (2) is arranged on the frame (1); Two crushing rollers (4) are symmetrically arranged and both are rotatably arranged in the crushing barrel (2); a driving mechanism (5) for driving the crushing rollers (4) to rotate is arranged on the frame (1); A screening mechanism (7) is rotatably mounted on a frame (1) and is located below the crushing barrel (2); a transmission mechanism (6) is disposed on the driving mechanism (5) for driving the screening mechanism (7) to rotate; the screening mechanism (7) comprises a rotating shaft (703) rotatably mounted on the frame (1), two supporting frames (702) both mounted on the rotating shaft (703), and a conical screen (701) connected to the two supporting frames (702); the conical screen (701) is provided with filter holes, the diameter of which gradually increases as it moves away from the small end; The material discharge device is arranged at the lower end of the crushing barrel (2), and the output end is located in the screening mechanism (7). The material discharge device comprises a material discharge hopper (8) arranged at the lower end of the crushing barrel (2) and having an inclined lower end, and a guide frame (9) having a semi-arc structure, one end of which is connected to the lower end of the material discharge hopper (8) and the other end of which is located in the conical screen (701).

2. A block impurity crushing and screening device according to claim 1, It is characterized in that A splash plate (10) is provided at the small end of the conical screen (701).

3. A block impurity crushing and screening device according to claim 1, It is characterized in that The driving mechanism (5) comprises a driving motor (501) arranged on a frame (1), a driving gear (502) connected to an output end of the driving motor (501), and two driven gears (503) respectively arranged on two crushing rollers (4); the two driven gears (503) are meshedly connected to each other, and one of the driven gears (503) is meshedly connected to the driving gear (502).

4. A device for crushing and screening bulk impurities according to claim 3, It is characterized in that A support shaft is arranged on the crushing roller (4), and a driven gear (503) is arranged on the support shaft; the transmission mechanism (6) comprises a driving pulley (601) arranged on the support shaft, a driven pulley (603) arranged on the rotating shaft (703), and a transmission belt (602) arranged on the driving pulley (601) and the driven pulley (603).

5. A device for crushing and screening blocky impurities according to claim 1, It is characterized in that A feed hopper (3) is arranged at the upper end of the crushing barrel (2); the cross section of the feed hopper (3) is a trapezoidal structure.

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