Stirring device for asphalt concrete production

Abstract

The utility model belongs to the technical field of concrete processing, particularly relates to a stirring device for asphalt concrete production, and provides the following scheme aiming at the problems of high feeding difficulty and environmental pollution caused by black smoke in the background technology: the stirring device comprises a stirring barrel, and the outer wall of one end of the stirring barrel is rotatably connected with a first end cover. The connecting frame is driven by the servo motor to rotate, the spiral conveyor can be controlled to be transferred from the top of the mixing drum to one side of the mixing drum, the position of the feeding hopper is lowered, the difficulty of feeding asphalt concrete raw materials is greatly lowered, manpower is saved, and under the action of the air blower, the feeding efficiency is improved. Black smoke generated in the stirring process of asphalt concrete can firstly enter the filter cylinder, the filter element in the filter cylinder can filter a large amount of smoke dust, the air purification effect is achieved, the smoke dust sensor can monitor the smoke dust concentration in the smoke exhaust pipe in real time, the filtering effect of the filter element is judged accordingly, and the effect of reminding people to replace the filter element in time is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete processing, in particular to a stirring device for asphalt concrete production. Background Art

[0002] Asphalt concrete is commonly known as asphalt concrete. It is a mixture made by artificially selecting mineral materials, crushed stones or crushed gravels, stone chips or sands, mineral powders, etc. with a certain gradation composition, and a certain proportion of road asphalt materials under strictly controlled conditions.

[0003] Firstly, a special mixing drum is used when mixing asphalt concrete. However, due to the high feeding position, at least two workers are required to cooperate during operation. One is responsible for handling and the other is responsible for feeding. The entire feeding process is not only complex but also labor-consuming.

[0004] Moreover, during the mixing process of asphalt concrete, it passes through a burner for combustion. However, thick black smoke is generated during the combustion process. If the black smoke is directly discharged outdoors, it will cause air pollution. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a stirring device for asphalt concrete production, which overcomes the deficiencies of the prior art and effectively solves the problems of difficult feeding and black smoke polluting the environment.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A stirring device for asphalt concrete production includes a mixing drum. One end outer wall of the mixing drum is rotatably connected with a first end cover, and a servo motor is welded to the top outer wall of the first end cover. The output shaft of the servo motor is fixedly connected with a connecting frame, and a screw conveyor is welded to the outer wall of the connecting frame. The feeding end of the screw conveyor is welded with a feeding hopper;

[0008] One side outer wall of the first end cover is fixedly connected with a filter cartridge, and one end outer wall of the filter cartridge is fixedly connected with an exhaust pipe. A blower is installed on one end outer wall of the exhaust pipe, and a dust sensor is installed on the outer wall of the exhaust pipe.

[0009] Preferably, a frame is welded to the bottom outer wall of the first end cover, and a driving motor is fixedly connected to the top outer wall of the frame. The output shaft of the driving motor is fixedly connected with a gear, and the outer wall of the gear meshes with a toothed ring, and the toothed ring is fixedly connected to the outer wall of the mixing drum.

[0010] Preferably, symmetrically distributed positioning wheels are rotatably connected to the top outer wall of the frame, and symmetrically distributed positioning rings are welded to the outer wall of the mixing drum. The positioning wheels are arranged between the two positioning rings.

[0011] Preferably, the outer wall of the other end of the mixing drum is rotatably connected with a second end cover, and a burner is fixedly connected to the outer wall of one side of the second end cover.

[0012] Preferably, a feed inlet is provided on the outer wall of the top of the first end cover.

[0013] Preferably, a blanking pipe is welded to the outer wall of the bottom of the second end cover.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. For the mixing device for asphalt concrete production in this design, by driving the connecting frame to rotate with a servo motor, it can control the screw conveyor to move from the top of the mixing drum to one side of the mixing drum, reducing the position of the feeding hopper, greatly reducing the difficulty of feeding the asphalt concrete raw materials, and saving labor.

[0016] 2. For the mixing device for asphalt concrete production in this design, under the action of the blower, the black smoke generated during the mixing of asphalt concrete will first enter the filter cartridge. The filter element inside the filter cartridge can filter a large amount of soot, achieving the effect of air purification. And the soot sensor can monitor the soot concentration inside the exhaust pipe in real time, thereby judging the filtering effect of the filter element and having the function of timely reminding to replace the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the front view of the overall structure of a mixing device for asphalt concrete production proposed by the present utility model;

[0018] Figure 2 is the rear view of the overall structure of a mixing device for asphalt concrete production proposed by the present utility model;

[0019] Figure 3 is the schematic structural diagram of the screw conveyor during operation of a mixing device for asphalt concrete production proposed by the present utility model.

[0020] In the figure: 1, mixing drum; 2, first end cover; 3, servo motor; 4, connecting frame; 5, screw conveyor; 6, feeding hopper; 7, filter cartridge; 8, exhaust pipe; 9, blower; 10, soot sensor; 11, frame; 12, drive motor; 13, gear; 14, gear ring; 15, positioning wheel; 16, positioning ring; 17, second end cover; 18, burner; 19, feed inlet; 20, blanking pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0022] Example 1, refer to Figures 1 to 3 , a stirring device for asphalt concrete production, including a stirring drum 1. One end outer wall of the stirring drum 1 is rotatably connected to a first end cover 2, and a servo motor 3 is welded to the top outer wall of the first end cover 2. The output shaft of the servo motor 3 is fixedly connected to a connecting frame 4, and a screw conveyor 5 is welded to the outer wall of the connecting frame 4. The feeding end of the screw conveyor 5 is welded to a feeding hopper 6.

[0023] In this embodiment, by driving the connecting frame 4 to rotate with the servo motor 3, the screw conveyor 5 can be controlled to move from the top of the stirring drum 1 to one side of the stirring drum 1, reducing the position of the feeding hopper 6, greatly reducing the difficulty of feeding the asphalt concrete raw materials, and saving manpower.

[0024] Example 2, refer to Figure 2 , a stirring device for asphalt concrete production. A filter cylinder 7 is fixedly connected to one side outer wall of the first end cover 2, and an exhaust pipe 8 is fixedly connected to one end outer wall of the filter cylinder 7. A blower 9 is installed on one end outer wall of the exhaust pipe 8, and a dust sensor 10 is installed on the outer wall of the exhaust pipe 8.

[0025] In this embodiment, under the action of the blower 9, the black smoke generated during the stirring of the asphalt concrete will first enter the filter cylinder 7. The filter element inside the filter cylinder 7 can filter a large amount of dust, achieving the effect of air purification. And the dust sensor 10 can monitor the dust concentration inside the exhaust pipe 8 in real time, thereby judging the filtering effect of the filter element and having the function of timely reminding to replace the filter element.

[0026] Refer to Figures 1 to 2 , a frame 11 is welded to the bottom outer wall of the first end cover 2, and a driving motor 12 is fixedly connected to the top outer wall of the frame 11. The output shaft of the driving motor 12 is fixedly connected to a gear 13, and a gear ring 14 is meshed with the outer wall of the gear 13. The gear ring 14 is fixedly connected to the outer wall of the stirring drum 1.

[0027] Refer to Figure 1 , two symmetrically distributed positioning wheels 15 are rotatably connected to the top outer wall of the frame 11, and two symmetrically distributed positioning rings 16 are welded to the outer wall of the stirring drum 1. The positioning wheels 15 are arranged between the two positioning rings 16.

[0028] Refer to Figures 1 to 2 , a second end cover 17 is rotatably connected to the other end outer wall of the stirring drum 1, and a burner 18 is fixedly connected to one side outer wall of the second end cover 17.

[0029] Refer to Figure 1 , a feeding port 19 is opened on the top outer wall of the first end cover 2.

[0030] Refer to Figure 2 , a discharge pipe 20 is welded to the bottom outer wall of the second end cover 17.

[0031] Working principle: First, the servo motor 3 drives the connecting frame 4 to rotate to control the transfer of the screw conveyor 5 from the top of the mixing drum 1 to one side of the mixing drum 1. The asphalt concrete raw materials can be put into the feeding hopper 6, and the screw conveyor 5 is relied on to convey the asphalt concrete raw materials to the mixing drum 1. Then, the driving motor 12 drives the gear 13 to rotate, thereby driving the mixing drum 1 on the inner wall of the gear ring 14 to rotate and mix the asphalt concrete. At the same time, the burner 18 can burn the asphalt concrete inside the mixing drum 1. Under the action of the blower 9, the black smoke generated during the mixing of the asphalt concrete will first enter the filter cartridge 7. The filter element inside the filter cartridge 7 can filter a large amount of dust. Finally, the mixed asphalt concrete can be discharged through the discharge pipe 20.

[0032] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A stirring device for asphalt concrete production, comprising a stirring drum (1), characterized in that: The outer wall of one end of the mixing drum (1) is rotatably connected to a first end cover (2), and a servo motor (3) is welded to the outer wall of the top of the first end cover (2), the output shaft of the servo motor (3) is fixedly connected to a connecting frame (4), and a screw conveyor (5) is welded to the outer wall of the connecting frame (4), and a feeding hopper (6) is welded to the feeding end of the screw conveyor (5); A filter cartridge (7) is fixedly connected to an outer wall of one side of the first end cover (2), and a smoke exhaust pipe (8) is fixedly connected to an outer wall of one end of the filter cartridge (7), a blower (9) is installed on an outer wall of one end of the smoke exhaust pipe (8), and a smoke dust sensor (10) is installed on the outer wall of the smoke exhaust pipe (8).

2. A stirring device for asphalt concrete production according to claim 1, characterized in that: A frame (11) is welded to the bottom outer wall of the first end cover (2), and a driving motor (12) is fixedly connected to the top outer wall of the frame (11), a gear (13) is fixedly connected to the output shaft of the driving motor (12), a gear ring (14) is meshed with the outer wall of the gear (13), and the gear ring (14) is fixedly connected to the outer wall of the mixing drum (1).

3. A stirring device for asphalt concrete production according to claim 2, characterized in that: The top outer wall of the frame (11) is rotatably connected with symmetrically distributed positioning wheels (15), and the outer wall of the mixing drum (1) is welded with symmetrically distributed positioning rings (16), and the positioning wheel (15) is arranged between the two positioning rings (16).

4. A stirring device for asphalt concrete production according to claim 1, characterized in that: The outer wall of the other end of the mixing drum (1) is rotatably connected to a second end cover (17), and the outer wall of one side of the second end cover (17) is fixedly connected to a burner (18).

5. The stirring device for asphalt concrete production according to claim 1, characterized in that: A feed inlet (19) is provided on the top outer wall of the first end cover (2).

6. A stirring device for asphalt concrete production according to claim 4, characterized in that: A feed pipe (20) is welded to the outer wall of the bottom of the second end cover (17).

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