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Stirring equipment for asphalt concrete regeneration

A technology of asphalt concrete and mixing equipment, which is applied in roads, road repairs, roads, etc., can solve the problems of uneven heating of asphalt, poor mixing effect, etc., achieve good mixing effect, improve mixing effect, and avoid aging effects

Inactive Publication Date: 2019-05-10
CHONGQING VOCATIONAL INST OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention intends to provide asphalt concrete recycling mixing equipment to solve the problems of uneven heating of asphalt and poor mixing effect in the prior art

Method used

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  • Stirring equipment for asphalt concrete regeneration
  • Stirring equipment for asphalt concrete regeneration
  • Stirring equipment for asphalt concrete regeneration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 As shown, the mixing equipment for asphalt concrete recycling includes a mixing tank 6, the top of the mixing tank 6 is provided with a material inlet 1, and the bottom of the mixing tank 6 is provided with a discharge port. A heating chamber 10 is provided at the bottom of the mixing tank 6, and a heating source 11 is installed in the heating chamber 10, and the heating source 11 is an electric heating wire in this embodiment.

[0026] An upper stirring shaft 2 is vertically arranged in the mixing barrel 6, and the upper stirring shaft 2 is rotatably connected to the top wall of the stirring barrel 6, and the upper stirring shaft 2 is connected with a motor. Several upper stirring blades 3 are welded on the upper stirring shaft 2 . The upper stirring shaft 2 is hollow inside, and the lower stirring shaft is vertically slidably connected to it. The lower stirring shaft includes a shaft body 8 and a vertical rod 7 vertically arranged in the shaft body 8...

Embodiment 2

[0034] Such as figure 2 As shown, the difference between this embodiment and Embodiment 1 is that a heat pipe 5 is vertically arranged in the side wall of the mixing tank 6, and the diameter of the top end of the heat pipe 5 is greater than the diameter of the bottom end, and the heat pipe 5 adopts an existing heat conduction pipe. Good performance metal pipe. The heat pipe 5 can transfer the heat of the heating source 11 to the side wall of the mixing bucket 6, so that the mixing bucket 6 can also be heated in the circumferential direction, and the asphalt is heated more evenly. In addition, the diameter of the top of the heat pipe 5 is larger than the diameter of the bottom, which makes the heat transfer area of ​​the top of the heat pipe 5 larger than the heat transfer area of ​​the bottom. Since the top of the mixing tank 6 is far away from the heating source 11 , the arrangement of the heat pipe 5 can improve the temperature uniformity in the side wall of the mixing tan...

Embodiment 3

[0036] Such as image 3 As shown, the difference between the present embodiment and the first embodiment is that: the bottom of the mixing tank 6 is provided with a connection chamber 14, and the friction block 13 is vertically slidably connected to the connection chamber 14, and the friction block 13 is connected to the vertical rod 7 in rotation. The rod 7 is slidably connected with the top of the connection cavity 14 . When the shaft body 8 moves upwards, the vertical bar 7 will not move due to the sliding connection between the vertical bar 7 and the shaft body 8. When the slider 12 on the vertical bar 7 moves to the bottom end of the chute, the shaft body 8 can drive the vertical bar 8 The rod 7 overcomes the frictional force between the friction block 13 and the connection cavity 14, thereby driving the vertical rod 7 to move upward together.

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PUM

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Abstract

The invention relates to the technical field of pavement construction, in particular to stirring equipment for asphalt concrete regeneration. The stirring equipment for asphalt concrete regeneration comprises a stirring barrel, a heating cavity is formed in the bottom of the stirring barrel, an upper stirring shaft is vertically arranged in the stirring barrel, a plurality of upper stirring bladesare arranged on the upper stirring shaft, a lower stirring shaft is vertically connected to the bottom of the upper stirring shaft in a sliding mode, and a plurality of lower stirring blades are arranged on the lower stirring shaft. The problems that in the prior art asphalt is heated unevenly and the stirring effect is poor are solved.

Description

technical field [0001] The invention relates to the technical field of pavement construction, in particular to a mixing device for recycling asphalt concrete. Background technique [0002] Asphalt pavement recycling technology is the old asphalt pavement that needs to be repaired or discarded, after digging, recycling, crushing, screening, heating, and then adding appropriate amount of new aggregate, new asphalt and other auxiliary materials to re-mix to form road performance. The recycled asphalt mixture is then paved with pavers or bases. [0003] The prior art discloses an asphalt mixing device, which includes a heating chamber, above which is a stirring chamber, in which a stirring shaft is vertically arranged, and a number of stirring blades are arranged horizontally on the stirring shaft to stir the asphalt. This device heats the asphalt while stirring, which improves the efficiency of asphalt regeneration. However, when this device is used to mix asphalt, the temper...

Claims

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Application Information

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IPC IPC(8): E01C19/10
Inventor 皮育晖王孝林
Owner CHONGQING VOCATIONAL INST OF ENG