Asphalt regenerant adding device

Abstract

The utility model discloses an asphalt regenerant adding device which comprises a regenerant storage tank, a feeding pump, a metering tank, a spraying pump, an RAP metering hopper and a stirrer, asphalt regenerant is contained in the regenerant storage tank, the regenerant storage tank is communicated with the metering tank through a first pipeline, the feeding pump is arranged on the first pipeline, and the spraying pump is arranged on the metering tank. The metering tank is communicated with the stirrer through a second pipeline, the spraying pump is arranged on the second pipeline, and the RAP metering hopper is communicated with the upper side of the stirrer. According to the utility model, the adding amount of the RAP can be determined through the RAP metering hopper, a regenerant is firstly fed into the metering tank according to the demand, after the RAP enters the RAP metering hopper, the regenerant is sprayed and mixed with the RAP, and then the mixture enters the stirrer, so that the accuracy of the adding amount of the regenerant is improved, and the recycling ratio of the RAP is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt regeneration, in particular to an asphalt regeneration agent adding device. Background Art

[0002] The mileage of highway traffic in my country has increased year by year. The development of highway traffic has transitioned from construction-oriented to a new stage of equal emphasis on construction and maintenance. Every year, a large amount of recycled asphalt mixture (RAP) is generated due to road maintenance and repair. The arbitrary disposal or discarding of this material will cause environmental pollution and bring great pressure to society and the environment. RAP is a solid waste with resource-based properties. It can be recycled and reused in the asphalt pavement structure layer through factory-mixed hot (warm) recycling technology, thereby saving a lot of construction raw material costs and effectively avoiding material waste and environmental pollution. When recycling RAP, since asphalt is difficult to separate alone, the regeneration of asphalt can only be achieved by adding a regeneration agent to the mixture. At present, the addition of the regeneration agent is stirred through a pipeline to the RAP, and the on and off of the pipeline is manually controlled. However, the accuracy of manual operation is not high, resulting in the difficulty in controlling the amount of regeneration agent added, and the ratio of RAP to regeneration agent cannot be accurately controlled. Therefore, a suitable regeneration agent addition system is needed to ensure the accurate addition and use of the regeneration agent, thereby increasing the recovery ratio of RAP. Utility Model Content

[0003] The purpose of the utility model is to avoid the deficiencies of the prior art and provide an asphalt regeneration agent adding device, thereby effectively solving the deficiencies existing in the prior art.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an asphalt regeneration agent adding device, including a regeneration agent storage tank, a feeding pump, a metering tank, a spray pump, a RAP metering hopper and an agitator, the regeneration agent storage tank is filled with asphalt regeneration agent, the regeneration agent storage tank is connected to the metering tank through a first pipeline, the feeding pump is arranged on the first pipeline, the metering tank is connected to the RAP metering hopper through a second pipeline, the spray pump is arranged on the second pipeline, and the RAP metering hopper is connected to the upper side of the agitator.

[0005] Furthermore, a large-capacity storage tank is arranged at the front side of the regeneration agent storage tank, the large-capacity storage tank is connected with the regeneration agent storage tank through a third pipeline, and a feeding pump is arranged on the third pipeline.

[0006] Furthermore, a connecting rod float liquid level switch for controlling a feeding pump is provided in the regeneration agent storage tank.

[0007] Furthermore, a spray head is provided at the end of the second pipeline in the RAP metering hopper.

[0008] Furthermore, the metering tank is arranged on the upper side of the regeneration agent storage tank, and an overflow hole is opened on the metering tank, and the overflow hole is connected with the regeneration agent storage tank through a fourth pipeline.

[0009] Furthermore, the overflow hole is opened on the side wall of the metering tank, and an adjusting cylinder is provided in the metering tank so as to be movable up and down, and a guide rod is provided on the adjusting cylinder. A guide hole is provided on the upper side of the metering tank to cooperate with the guide rod, and a driving device for driving the adjusting cylinder to move up and down is provided on the upper side of the metering tank.

[0010] Furthermore, a screw is provided on the upper side of the adjusting cylinder, and the driving device includes a rotatable turntable provided on the upper side of the metering tank and a motor driving the turntable to rotate. The turntable is threaded on the outer side of the screw, and an external thread is provided on the outer side of the turntable. The motor drives the turntable to rotate through a driving gear.

[0011] The above technical scheme of the utility model has the following beneficial effects: the utility model can determine the amount of RAP added through the RAP metering bucket, first the regeneration agent is sent into the metering tank according to the required amount, after the RAP enters the RAP metering bucket, the regeneration agent is sprayed in, mixed with the RAP and then enters the agitator, thereby improving the accuracy of the amount of regeneration agent added and improving the recovery ratio of RAP. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a connection diagram of an embodiment of the utility model;

[0013] Figure 2 It is a cross-sectional schematic diagram of a metering tank according to an embodiment of the utility model. DETAILED DESCRIPTION

[0014] The following is a detailed description of the preferred implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0015] In the description of the present utility model, unless otherwise specified, "multiple" means two or more than two; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0016] like Figure 1-2 As shown, an asphalt regeneration agent adding device of the present embodiment comprises a regeneration agent storage tank 1, a feeding pump 2, a metering tank 3, a spraying pump 4, a RAP metering bucket 5 and an agitator 6, wherein the regeneration agent storage tank 1 is filled with asphalt regeneration agent, the regeneration agent storage tank 1 is connected with the metering tank 3 through a first pipeline 7, the feeding pump 2 is arranged on the first pipeline 7, the metering tank 3 is connected with the RAP metering bucket 5 through a second pipeline 8, the spraying pump 4 is arranged on the second pipeline 8, and the RAP metering bucket 5 is connected with the upper side of the agitator 6; the regeneration agent is stored in the regeneration agent storage tank 1, the weight of the RAP added is metered at the RAP metering bucket 5, and then the regeneration agent is added to the metering tank 3 in proportion through the feeding pump 2, after the RAP enters the RAP metering bucket 5, the regeneration agent is sprayed, and after mixing with the RAP, it enters the agitator 6 to realize asphalt regeneration; the proportion can be controlled by measuring the amount of RAP and regeneration agent added, thereby improving the accuracy of the amount of regeneration agent added and improving the recovery ratio of RAP;

[0017] Preferably, a RAP storage hopper 51 is provided on the upper side of the RAP metering hopper 5;

[0018] Preferably, a large-capacity storage tank 9 is provided at the front side of the regeneration agent storage tank 1, and the large-capacity storage tank 9 is connected to the regeneration agent storage tank 1 through a third pipeline 10, and a feed pump 11 is provided on the third pipeline 10; the regeneration agent storage tank 1 can be arranged near the agitator 6, shortening the length of the first pipeline 7, and conveniently adding the regeneration agent to the metering tank 3, and the large-capacity storage tank 9 can be placed in a position convenient for adding the regeneration agent thereto, and the length of the third pipeline 10 is not limited;

[0019] Preferably, a connecting rod float liquid level switch 12 for controlling the feed pump 11 is provided in the regeneration agent storage tank 1. The connecting rod float liquid level switch 12 controls the switch of the feed pump 11, thereby controlling the liquid level in the regeneration agent storage tank 1, and maintaining the supply of the regeneration agent in the metering tank 3;

[0020] Preferably, a spray head 13 is provided at the end of the second pipeline 8 in the RAP metering bucket 5, and the regeneration agent is sprayed into the RAP metering bucket 5 through the spray head 13;

[0021] Preferably, the metering tank 3 is arranged on the upper side of the regeneration agent storage tank 1, and an overflow hole 14 is opened on the metering tank 3, and the overflow hole 14 is connected to the regeneration agent storage tank 1 through the fourth pipeline 15; the metering tank 3 can control the liquid level through the overflow hole 14, and when the liquid level reaches the overflow hole 14, it can flow out through the overflow hole 14 and flow back to the regeneration agent storage tank 1 through the fourth pipeline 15;

[0022] Preferably, the overflow hole 14 is provided on the side wall of the metering tank 3, an adjusting cylinder 16 is provided in the metering tank 3 so as to be movable up and down, a guide rod 17 is provided on the adjusting cylinder 16, a guide hole is provided on the upper side of the metering tank 3 in coordination with the guide rod 17, and a driving device for driving the adjusting cylinder 16 to move up and down is provided on the upper side of the metering tank 3; the driving device drives the adjusting cylinder 16 to move up and down, and the volume of the lower side of the overflow hole 14 in the metering tank 3 can be adjusted, thereby adjusting the amount of regeneration agent that can be loaded in the metering tank 3 each time, and matching RAP of different weights for matching;

[0023] Preferably, a screw 18 is provided on the upper side of the adjusting cylinder 16, and the driving device includes a swivel seat 19 rotatably provided on the upper side of the metering tank 3 and a motor 20 driving the swivel seat 19 to rotate, the swivel seat 19 is screwed to the outer side of the screw 18, and the outer side of the swivel seat 19 is provided with an external thread. The motor 20 drives the swivel seat 19 to rotate through the driving gear, and the swivel seat 19 and the screw 18 are threadedly matched to drive the adjusting cylinder 16 to move up and down.

[0024] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. An asphalt regeneration agent adding device, characterized in that: It includes a regeneration agent storage tank, a feeding pump, a metering tank, a spray pump, a RAP metering hopper and an agitator. The regeneration agent storage tank is filled with asphalt regeneration agent, the regeneration agent storage tank is connected to the metering tank through a first pipeline, the feeding pump is arranged on the first pipeline, the metering tank is connected to the RAP metering hopper through a second pipeline, the spray pump is arranged on the second pipeline, and the RAP metering hopper is connected to the upper side of the agitator.

2. The asphalt regeneration agent adding device according to claim 1, characterized in that: A large-capacity storage tank is arranged at the front side of the regeneration agent storage tank. The large-capacity storage tank is connected with the regeneration agent storage tank through a third pipeline. A feeding pump is arranged on the third pipeline.

3. The asphalt regeneration agent adding device according to claim 2, characterized in that: The regeneration agent storage tank is provided with a connecting rod float liquid level switch for controlling the feeding pump.

4. The asphalt regeneration agent adding device according to claim 1, characterized in that: The end of the second pipeline is provided with a spray head in the RAP metering hopper.

5. The asphalt regeneration agent adding device according to claim 1, characterized in that: The metering tank is arranged on the upper side of the regeneration agent storage tank, and an overflow hole is opened on the metering tank, and the overflow hole is connected with the regeneration agent storage tank through a fourth pipeline.

6. The asphalt regeneration agent adding device according to claim 5, characterized in that: The overflow hole is opened on the side wall of the metering tank. An adjusting cylinder is arranged in the metering tank so as to be movable up and down. A guide rod is arranged on the adjusting cylinder. A guide hole is arranged on the upper side of the metering tank to cooperate with the guide rod. A driving device for driving the adjusting cylinder to move up and down is arranged on the upper side of the metering tank.

7. The asphalt regeneration agent adding device according to claim 6, characterized in that: A screw is arranged on the upper side of the adjusting cylinder, and the driving device includes a rotatable seat arranged on the upper side of the metering tank and a motor driving the rotatable seat to rotate. The rotatable seat is threaded on the outer side of the screw, and an external thread is arranged on the outer side of the rotatable seat. The motor drives the rotatable seat to rotate through a driving gear.

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