CN218077530U - A heating and mixing device for recycled asphalt concrete - Google Patents

Abstract

A regenerated asphalt concrete heating and stirring device comprises a stirring barrel, wherein the side wall of the stirring barrel is of a hollow structure, a heating device is arranged in the hollow cavity, a lower rotating ring and an upper rotating ring are respectively arranged at the bottom and the upper part in the stirring barrel, the upper rotating ring and the lower rotating ring are fixedly connected through a vertical rod, a pulley is arranged at the bottom of the lower rotating ring, and a side scraper blade for scraping attachments on the inner side wall of the stirring barrel is arranged on the outer side of the vertical rod; the utility model provides a reclaimed asphalt concrete heating agitating unit can strike off the attachment of agitator inner wall at the in-process of heating stirring, simultaneously, need not to use the (mixing) shaft, sets up the stirring rake on the montant, follows the rotating ring and rotates, plays the stirring effect.

Description

A heating and mixing device for recycled asphalt concrete

technical field

The utility model relates to the technical field of asphalt concrete regeneration, in particular to a regeneration asphalt concrete heating and stirring device.

Background technique

During the hot mixing process of hot-mix recycled asphalt concrete, it is necessary to heat and mix the recycled material and the new material in proportion. Since the asphalt material is relatively viscous, the asphalt concrete material has a high viscosity during the heating and mixing process and is easy to adhere to the side wall. , especially when the material is heated on the side wall, it is easy to burn, and when the stirring shaft is used for stirring, the resistance encountered by the stirring motor is too high, which is easy to damage the motor.

Contents of the invention

The technical problem to be solved by the utility model is to provide a regenerated asphalt concrete heating and stirring device, which can prevent materials from adhering to the inner wall of the heating and mixing barrel, and satisfies large-resistance stirring without using a stirring shaft.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a recycled asphalt concrete heating and mixing device, including a mixing tank, the side wall of the mixing tank is a hollow structure, a heating device is arranged in the hollow cavity, and the mixing tank The bottom and upper part of the inside are respectively provided with a lower rotating ring and an upper rotating ring. The upper rotating ring and the lower rotating ring are fixedly connected by a vertical rod. The bottom of the lower rotating ring is provided with a pulley. Side scraper for attachments on the inner wall of the mixing tank;

The outer wall of the upper rotating ring is a gear structure, and a limiting gear for limiting the upper transmission ring is provided on the outer side of the mixing tank. For the motor that drives the limit gear to rotate, the output shaft of the motor is connected to the transmission gear, and the transmission gear meshes with the limit gear.

Preferably, a horizontal bar is fixed inside the lower rotating ring, and the bottom of the horizontal bar is provided with a bottom scraper for scraping off attachments at the bottom of the mixing bucket.

Preferably, the side scraper and the bottom scraper are in contact with but not connected to the inner wall of the mixing tank.

Preferably, the side scraper and the bottom scraper are made of rubber material.

Preferably, a stirring paddle is provided on the inner side of the vertical rod.

Preferably, a baffle is provided inside the upper rotating ring, and the baffle is located above the stirring paddle.

Preferably, there are three limiting gears, the transmission gear meshes with one of the limiting gears, and a window for the limiting gears to pass through is provided on the side wall of the mixing bucket.

Preferably, the top of the mixing tank is provided with a top cover, the top cover is provided with a feed port, and the bottom of the mixing tank is provided with a discharge port.

The utility model provides a heating and stirring device for recycled asphalt concrete, which can scrape off the attachments on the inner wall of the mixing barrel during the heating and stirring process. Play a stirring role.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic diagram of the internal structure of the utility model;

Fig. 3 is a schematic diagram of the external structure of the utility model.

detailed description

As shown in Figure 1-3, a recycled asphalt concrete heating and mixing device includes a mixing tank 1, the side wall of the mixing tank 1 is a hollow structure, a heating device is arranged in the hollow cavity, and the bottom and upper parts of the mixing tank 1 A lower rotating ring 2 and an upper rotating ring 4 are respectively provided, and the upper rotating ring 4 and the lower rotating ring 2 are fixedly connected by a vertical rod 5. The bottom of the lower rotating ring 2 is provided with a pulley 3, and on the outside of the vertical rod 5 There is a side scraper 6 for scraping off the attachment on the inner wall of the mixing tank 1; there are at least two vertical rods 5 . The heating device can be an electric heating wire.

The outer wall of the upper rotating ring 4 is a gear structure, and the outer side of the mixing tank 1 is provided with a limit gear 7 for limiting the upper transmission ring 4, and the limit gear 7 passes through the side wall of the mixing tank 1 and the upper transmission ring. 4 phase meshing, and also includes a motor 8 for driving the limit gear 7 to rotate, the output shaft of the motor 8 is connected with the transmission gear 9, and the transmission gear 9 is meshed with the limit gear 7.

Preferably, a crossbar 10 is fixed inside the lower rotating ring 2 , and the bottom of the crossbar 10 is provided with a bottom scraper 11 for scraping off attachments at the bottom of the mixing bucket 1 .

Preferably, the side scraper 6 and the bottom scraper 11 are in contact with the inner wall of the mixing bucket 1 but not connected.

Preferably, the side scraper 6 and the bottom scraper 11 are made of rubber material.

Preferably, the inner side of the vertical rod 5 is provided with a stirring paddle 12 .

Preferably, a baffle 13 is arranged inside the upper rotating ring 4 , and the baffle 13 is located above the stirring paddle 12 . The baffle plate 13 blocks the material when feeding, preventing the material from directly hitting the stirring paddle 12, causing the stirring paddle 12 to be damaged.

Preferably, the limit gear 7 is provided with three, and the three limit gears 7 are fixedly arranged on the outside of the mixing tank 1, and the transmission gear 9 is meshed with one of the limit gears 7, and the side wall of the mixing tank 1 is provided with There is a window 14 for the limit gear 7 to pass through.

Preferably, the top of the mixing bucket 1 is provided with a top cover 15 , the top cover 15 is provided with a feed inlet 16 , and the bottom of the mixing bucket 1 is provided with a discharge outlet 17 .

During use, heat and stir after opening the heating device and the motor 8, the motor 8 drives the transmission gear 9, the limit gear 7 and the upper rotating ring to rotate 4, and the upper rotating ring drives the vertical bar 5 and the lower rotating ring 2 to rotate. The side scraper 6 and the bottom scraper 11 scrape off the attachments on the inner wall and the bottom respectively, while the stirring paddle 12 stirs.

Above-mentioned embodiment is only the preferred technical scheme of the present utility model, and should not be considered as the restriction to the present utility model, and the protection scope of the present utility model should be the technical solution described in the claims, including the technology in the technical solution described in the claims. An equivalent alternative to the feature is the scope of protection. That is, equivalent replacement and improvement within this scope are also within the protection scope of the present utility model.

Claims (8)

1. A heating and mixing device for recycled asphalt concrete, including a mixing tank (1), the side wall of the mixing tank (1) is a hollow structure, and a heating device is arranged in the hollow cavity, and it is characterized in that: in the mixing tank (1) The bottom and upper part of the bottom are respectively provided with a lower rotating ring (2) and an upper rotating ring (4), the upper rotating ring (4) and the lower rotating ring (2) are fixedly connected by a vertical rod (5), and the lower rotating ring (2) ) is provided with a pulley (3) at the bottom, and a side scraper (6) is provided on the outside of the vertical rod (5) for scraping off the attachments on the inner wall of the mixing tank (1); The outer wall of the upper rotating ring (4) is a gear structure, and a limiting gear (7) for limiting the upper rotating ring (4) is provided on the outer side of the mixing barrel (1), and the limiting gear (7) passes through The side wall of the mixing bucket (1) meshes with the upper rotating ring (4), and also includes a motor (8) for driving the limit gear (7) to rotate, and the output shaft of the motor (8) is connected to the transmission gear (9) , the transmission gear (9) meshes with the limit gear (7). 2. A recycled asphalt concrete heating and stirring device according to claim 1, characterized in that: the lower rotating ring (2) is fixed with a cross bar (10), and the bottom of the cross bar (10) is provided with a scraping Remove the bottom scraper (11) from the bottom attachment of the mixing bowl (1). 3 . The recycled asphalt concrete heating and mixing device according to claim 2 , characterized in that: the side scraper ( 6 ) and the bottom scraper ( 11 ) are in contact with but not connected to the inner wall of the mixing bucket ( 1 ). 4. The recycled asphalt concrete heating and stirring device according to claim 3, characterized in that: the side scraper (6) and the bottom scraper (11) are made of rubber materials. 5 . The recycled asphalt concrete heating and stirring device according to claim 1 , characterized in that: the inner side of the vertical rod ( 5 ) is provided with a stirring paddle ( 12 ). 6. A recycled asphalt concrete heating and stirring device according to claim 5, characterized in that: the upper rotating ring (4) is provided with a baffle (13), and the baffle (13) is located at the side of the stirring paddle (12). above. 7. A recycled asphalt concrete heating and stirring device according to claim 1, characterized in that: there are three limit gears (7), and the transmission gear (9) meshes with one of the limit gears (7). A window (14) for the limit gear (7) to pass through is provided on the side wall of the mixing bucket (1). 8. A recycled asphalt concrete heating and stirring device according to claim 1, characterized in that: the top of the mixing bucket (1) is provided with a top cover (15), and the top cover (15) is provided with a feeding port ( 16), a discharge port (17) is provided at the bottom of the mixing barrel (1).

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