Regeneration drying roller for asphalt production

Abstract

The utility model provides a regeneration drying roller for asphalt production, which comprises a rack, a drying mechanism, a driving assembly, a fixing ring and a meshing ring, the drying mechanism comprises a raw material feeding box, a rotating cylinder, a regenerated material feeding box, a mixture discharging box and a combustor, a raw material feeding port is formed in the raw material feeding box, and a raw material discharging port is formed in the rotating cylinder. A flue gas outlet is formed in the upper side of the raw material feeding box, the rotating cylinder is arranged on the raw material feeding box, and the regenerated material feeding box is arranged on the rotating cylinder. According to the scheme, the moisture content of circulating air is reduced through heating of the combustor and condensation of humid air flow in the roller, so that the drying efficiency is improved, finally, drying of materials is achieved, the later maintenance cost of the regeneration drying roller is reduced by optimizing a driving system and arranging the meshing ring to be in a detachable connection mode, and the service life of the regeneration drying roller is prolonged. The service life of a protection part is limited.

Description

TECHNICAL FIELD

[0001] The utility model relates to bitumen recycling equipment technical field, concretely is a kind of recycling drying drum for bitumen production. BACKGROUND

[0002] Currently, the process of adding recycling materials in intermittent bituminous mixture plant mixing heat regeneration technology is to warm the recycling materials and new aggregates respectively in drying drum, and the original aggregate is introduced into vibrating screen to ensure the gradation of mixture.

[0003] However, the assembly for driving the rotating drum to rotate in the above-mentioned recycling drying drum is difficult to replace and maintain, which limits the service life of the internal components of the plant, thereby making the recycling drying drum have high maintenance cost and great difficulty in later period. UTILITY MODEL CONTENT

[0004] (I) technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides a recycling drying drum for bitumen production, which solves the problems raised in the above background technology.

[0006] (II) technical scheme

[0007] To achieve the above object, the utility model is realized by the following technical scheme: a recycling drying drum for bitumen production, comprising a rack, a drying mechanism, a driving assembly, a fixed ring and an engaging ring, the drying mechanism comprises a raw material feeding box, a rotating drum, a recycling material feeding box, a mixture discharging box and a burner, the raw material feeding box is provided with a raw material feeding port, the upper side of the raw material feeding box is provided with a flue gas outlet, the rotating drum is arranged on the raw material feeding box, the recycling material feeding box is arranged on the rotating drum, the mixture discharging box is arranged at one end of the recycling material feeding box away from the rotating drum, the burner is arranged at one end of the mixture discharging box away from the rotating drum, the rotating drum can rotate relatively, the fixed ring is fixedly arranged on the outer circular surface of the rotating drum, the engaging ring is fixedly arranged on the fixed ring, the engaging ring is composed of two semicircular ring parts, and the driving assembly is used for driving the engaging ring to rotate.

[0008] Preferably, a reinforcing rib is fixedly arranged between the fixed ring and the outer circular surface of the rotating drum, a plurality of limiting grooves in annular array are formed in the engaging ring, a connecting piece is arranged between the fixed ring and the engaging ring, and the connecting piece is used for detachably connecting the fixed ring and the engaging ring.

[0009] Preferably, the connecting piece comprises a bolt and a nut, the bolt penetrates the fixing ring and the engaging ring, the bolt is screwed with the fixing ring and the engaging ring, the nut is arranged in the limiting groove, the nut is sleeved on the bolt, and the nut is screwed with the bolt.

[0010] Preferably, the driving assembly comprises a motor frame, a driving motor and a driving gear, the motor frame is fixedly arranged on the rack, the driving motor is fixedly arranged on the motor frame, the driving gear is power-connected with the driving motor, and the outer circumferential surface of the driving gear is engaged with the engaging ring.

[0011] Preferably, the fixing ring is provided with at least two groups, and the engaging ring and the driving assembly are located corresponding to the fixing ring.

[0012] (Three) beneficial effects

[0013] The utility model provides a regenerative drying drum for asphalt production. It has the following beneficial effects:

[0014] 1. The scheme reduces the moisture content of circulating air by heating through the burner and condensing the humid airflow in the drum, thereby improving drying efficiency and ultimately achieving material drying. By optimizing the drive system and setting the engaging ring in a detachable connection mode, the maintenance cost of the regenerative drying drum is reduced, and the service life of the components is limited. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view structural schematic diagram of the utility model;

[0016] Figure 2 It is a rear view structural schematic diagram of the utility model;

[0017] Figure 3 It is a front view structural schematic diagram of the engaging ring in the utility model;

[0018] Figure 4 It is a rear view structural schematic diagram of the engaging ring in the utility model.

[0019] In the figure: 11, rack; 12, raw material feeding box; 13, raw material feeding port; 14, flue gas outlet; 15, rotating drum; 16, regenerated material feeding box; 17, mixed material discharging box; 18, burner; 20, fixing ring; 21, reinforcing rib; 22, engaging ring; 23, limiting groove; 24, bolt; 25, nut; 26, motor frame; 27, driving motor; 28, driving gear. DETAILED DESCRIPTION

[0020] The utility model embodiment provides a regenerative drying drum for asphalt production, likeFigures 1-4 As shown in the figure, it comprises a rack 11, a drying mechanism, a driving assembly, a fixed ring 20 and an engagement ring 22, the drying mechanism is the same as the prior art structure, comprising a raw material feeding box 12, a rotating drum 15, a regenerated material feeding box 16, a mixed material discharging box 17 and a burner 18, as shown in the figure Figure 2 As shown in the figure, the raw material feeding box 12 is provided with a raw material feeding port 13, the upper side of the raw material feeding box 12 is provided with a flue gas outlet 14, the rotating drum 15 is arranged on the raw material feeding box 12, the regenerated material feeding box 16 is arranged on the rotating drum 15, the mixed material discharging box 17 is arranged at one end of the regenerated material feeding box 16 away from the rotating drum 15, the burner 18 is arranged at one end of the mixed material discharging box 17 away from the rotating drum 15, the rotating drum 15 can rotate relative to the rotating drum 15, the outer circular surface of the rotating drum 15 is fixedly provided with the fixed ring 20, the engagement ring 22 is fixedly arranged on the fixed ring 20, the engagement ring 22 is composed of two semicircular ring parts, and the driving assembly is used for driving the engagement ring 22 to rotate.

[0021] As shown in the figure, the fixed ring 20 and the outer circular surface of the rotating drum 15 are fixedly provided with a reinforcing rib 21, the engagement ring 22 is provided with a ring-shaped array of limiting grooves 23, and the fixed ring 20 and the engagement ring 22 are provided with connecting pieces. Figures 3-4 As shown in the figure, the fixed ring 20 and the outer circular surface of the rotating drum 15 are fixedly provided with a reinforcing rib 21, the engagement ring 22 is provided with a ring-shaped array of limiting grooves 23, and the fixed ring 20 and the engagement ring 22 are provided with connecting pieces.

[0022] The connecting piece comprises a bolt 24 and a nut 25, the bolt 24 penetrates the fixed ring 20 and the engagement ring 22, the bolt 24 is threadedly connected between the fixed ring 20 and the engagement ring 22, the nut 25 is arranged in the limiting groove 23, the nut 25 is sleeved on the bolt 24, and the nut 25 is threadedly connected with the bolt 24.

[0023] The driving assembly comprises a motor rack 26, a driving motor 27 and a driving gear 28, the motor rack 26 is fixedly arranged on the rack 11, the driving motor 27 is fixedly arranged on the motor rack 26, the driving gear 28 is in power connection with the driving motor 27, and the outer circular surface of the driving gear 28 is in engagement with the engagement ring 22.

[0024] The fixed ring 20 is provided with at least two groups, the engagement ring 22 and the driving assembly are correspondingly arranged with the fixed ring 20.

[0025] The staff starts the driving motor 27, the driving motor 27 drives the driving gear 28 to rotate through the power output end, the driving gear 28 drives the rotating drum 15 to rotate through the gear engagement, in the process, the raw material enters the rotating drum 15 through the raw material feeding box 12, and is heated in the raw material heating area under the action of the rotating drum 15 and the internal guide blade; the raw material is lifted and falls under the action of the rotating drum 15 and the internal lifting blade and the containing blade, and then fully exchanges heat with the high-temperature flue gas generated by the burner 18 to form high-temperature raw material.

[0026] The regenerated material enters into the rotary drum 15 through the regenerated material feeding box 16, and enters into the mixed material wrapping area under the action of the rotary drum 15 and the internal feeding blade and the conical drum thereof, the raw material and the regenerated material are mixed sufficiently under the action of the rotary drum 15 and the mixing blade, the regenerated material is softened due to the high temperature heat transfer of the raw material, and then the raw material fully wraps the asphalt contained in the regenerated material, forming hot mixed material.

[0027] The mixed material is discharged through the mixed material discharge box 17 for the subsequent process of screening, grading and stirring.

[0028] When the staff needs to maintain the engagement ring 22, the bolt 24 is counterclockwise, the relative rotation between the bolt 24 and the nut 25, and then the thread is unlocked, at this time, the two semicircle ring parts of the engagement ring 22 are disassembled, and the disassembly is completed.

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

Claims

1. A regenerative drying drum for asphalt production, characterized by: The application relates to a rotary kiln, which comprises a frame (11), a drying mechanism, a driving assembly, a fixed ring (20) and an engaging ring (22), wherein the drying mechanism comprises a raw material feeding box (12), a rotary cylinder (15), a regenerated material feeding box (16), a mixed material discharging box (17) and a burner (18), the raw material feeding box (12) is provided with a raw material feeding port (13), the upper side of the raw material feeding box (12) is provided with a flue gas outlet (14), the rotary cylinder (15) is arranged on the raw material feeding box (12), the regenerated material feeding box (16) is arranged on the rotary cylinder (15), the mixed material discharging box (17) is arranged at one end of the regenerated material feeding box (16) away from the rotary cylinder (15), the burner (18) is arranged at one end of the mixed material discharging box (17) away from the rotary cylinder (15), the rotary cylinder (15) can relatively rotate, the fixed ring (20) is fixedly arranged on the outer circular surface of the rotary cylinder (15), the engaging ring (22) is fixedly arranged on the fixed ring (20), the engaging ring (22) is composed of two semicircular ring parts, and the driving assembly is used for driving the engaging ring (22) to rotate.

2. A regenerative drying drum for asphalt production as claimed in claim 1, wherein: The fixed ring (20) and the outer circular surface of the rotary cylinder (15) are fixedly provided with a reinforcing rib (21), the engaging ring (22) is provided with an annular array of limiting grooves (23), the fixed ring (20) and the engaging ring (22) are provided with a connecting piece, and the connecting piece is used for detachably connecting the fixed ring (20) and the engaging ring (22).

3. A regenerative drying drum for asphalt production as claimed in claim 2, wherein: The connecting piece comprises a bolt (24) and a nut (25), the bolt (24) penetrates through the fixed ring (20) and the engaging ring (22), the bolt (24) is threadedly connected with the fixed ring (20) and the engaging ring (22), the nut (25) is arranged in the limiting groove (23), the nut (25) is sleeved on the bolt (24), and the nut (25) is threadedly connected with the bolt (24).

4. A regenerative drying drum for asphalt production as claimed in claim 1, wherein: The driving assembly comprises a motor frame (26), a driving motor (27) and a driving gear (28), the motor frame (26) is fixedly arranged on the frame (11), the driving motor (27) is fixedly arranged on the motor frame (26), the driving gear (28) is power-connected with the driving motor (27), and the outer circular surface of the driving gear (28) is engaged with the engaging ring (22).

5. A regenerative drying drum for asphalt production as claimed in claim 1, wherein: The fixed ring (20) is provided with at least two groups, and the engaging ring (22) and the driving assembly are located corresponding to the fixed ring (20).

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