JPH11269814A - Aggregate coating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an aggregate coating device, by which the trouble of an increase in the manufacturing cost of aggregate and trouble, in which severe labor is forced on the basis of inferior work environment, are solved while the equalization of products, in its turn, the improvement of product quality and reliability at the time of the execution of aggregate can be attained. SOLUTION: The aggregate coating device has a hopper device section A with a hopper device, in which a fixed quantity of aggregate coated with a liquid agent is stored, and a rotor device, in which cylinders, which are installed to the lower section of the hopper device and in which holes are bored to circumferential surfaces so as to be able to scoop up aggregate one by one, are arranged in multiple rows on one shaft. The aggregate coating device is composed of a coating tank device section B with a liquid-agent storage tank, in which the liquid agent coating the scooped-up aggregate is stored, a conveyor (a chain conveyor device 7) extracting the coated aggregate from the inside of the liquid- agent storage tank and a vibrating screen device C with a device sprinkling over a powder material for preventing the solidification of the extracted aggregate.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aggregate coating apparatus which is effective in coating rubber aggregate in, for example, asphalt on rubber rolled pavement for preventing road surface freezing.

[0002]

2. Description of the Related Art In recent years, a rubber-rolled pavement of a flexible pavement system has been developed and constructed for the purpose of preventing the road surface from freezing in winter. In this technique, asphalt-coated rubber aggregate is sprayed on the surface of an asphalt mixture spread on a road surface and pressed with a roller.

By the way, a rubber aggregate used in this technique is coated with an asphalt emulsion and, for the purpose of preventing solidification, is coated with stone powder to produce a pre-coated rubber aggregate. In the case of manufacturing such precoated rubber aggregate, conventionally, it is manufactured in a stationary large asphalt plant, or in a very small amount, an operator manually manufactures it.

[0004]

However, when producing a precoated rubber aggregate in a stationary large asphalt plant, the production of an asphalt precoated rubber aggregate is performed after the production of a normal asphalt composite material product is completed. Therefore, the cost for operating the plant and the work personnel for the operation are required, so that a large amount of cost and overtime work are required.

[0005] For this reason, there is an inconvenience that the production unit price of the precoated rubber aggregate is increased. On the other hand, in the case of manufacturing by hand, since the coating operation is performed using asphalt emulsion, severe labor is required under a poor working environment, and there is a disadvantage that it takes a lot of time. . The present invention has been made in view of the above-described conventional circumstances, and solves the disadvantage that the unit production cost of aggregate is high and the inconvenience that severe labor is required under a poor working environment. It is an object of the present invention to provide an aggregate coating apparatus capable of improving the product quality and reliability in the case where the product is made uniform and the aggregate is applied.

[0006]

In order to achieve the above object, the invention according to claim 1 comprises a popper device for storing a fixed amount of aggregate to be coated, and one aggregate mounted on a lower portion thereof. A rotor device in which a plurality of cylinders having holes formed in the circumferential surface are arranged in one row in a single axis so as to be able to scoop each piece, and the scooped aggregate is coated. A coating tank device portion including a liquid agent storage tank for storing the liquid agent, and a transport device for extracting the coated aggregate from the inside of the liquid agent storage tank, and a powder material for preventing solidification of the extracted aggregate. And a vibrating sieve device provided with a device for sprinkling water.

The invention according to claim 2 is characterized in that the transfer device of the coating tank device portion has a structure in which the transfer speed is arbitrarily variable. The invention according to claim 3 is
The vibrating sieve device portion is installed at a predetermined angle, a plate is stretched on the upper portion so that the powder material is accumulated without falling, and the lower portion is formed with the powder material and the aggregate. It is characterized in that a net for separation is stretched.

The invention according to claim 4 is characterized in that the popper unit, the coating tank unit, and the vibrating sieve unit are configured to be separated and independent from each other. Claim 5
The invention according to the invention is characterized in that the popper device portion, the coating tank device portion, and the vibrating sieve device portion can be remotely operated.

According to a sixth aspect of the present invention, in the rotor device, the shaft component, a ring component having a plurality of deformed slots for scooping the aggregate on the outer peripheral surface, and when the aggregate falls into the liquid agent tank. And a width adjustment ring for preventing contact with each other.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. First, an outline of the aggregate coating apparatus of the present embodiment will be described. The aggregate coating device has a popper device that stores a certain amount of rubber aggregate to be coated, and a hole is formed in the circumferential surface so that it can be attached to the lower part and scoop rubber aggregate one by one. A rotor device in which the formed cylinders are arranged in multiple rows in a single axis, a popper device portion including a asphalt emulsion tank storing an asphalt emulsion as a liquid agent for coating the rubber aggregate scooped as described above, A multi-row chain conveyor as a transport device for drawing the coated rubber aggregate out of the asphalt emulsion storage tank, and a coating tank device portion composed of a stone powder for preventing solidification of the drawn rubber aggregate. A vibrating sieve device portion provided with a device for sprinkling, a step portion for monitoring each of the portions, and a remote control box portion are configured in combination. It is.

Such a device is operated by power such as electric power (a prime mover is also possible), and the rotation of the rotor device in the popper device portion can be varied as necessary. In addition, the asphalt emulsion tank is provided with a heating device for heating the asphalt emulsion, and the conveying speed of the multi-row chain conveyor for extracting the coated rubber aggregate can be arbitrarily changed. ing.

Accordingly, it is possible to arbitrarily select the coating time of the rubber aggregate dropped from the popper unit to the asphalt emulsion tank. Further, the vibrating sieve unit is installed at an appropriate angle, and a thin iron plate is stretched on the upper part of the sieve so that the stone powder is collected without falling. Further, a net for separating the stone powder and the rubber aggregate is stretched below the sieve.

[0013] The direction of rotation of the vibrating screen device is reversed to separate the rubber aggregate and the stone powder. Therefore, depending on the weight ratio of the material to be sieved and the proper sieve angle described above, light stone powder accumulates on the upper part of the sieve, and heavy rubber aggregate is discharged from the sieve. The popper unit, coating tank unit, vibrating sieve unit, and step unit are separated and independent from each other, which is advantageous for transportation and the like, and the situation of erection on site (topography, etc.) The arrangement can be freely considered.

The control of each of the popper unit, the coating tank unit, the vibrating screen unit, and the step unit can be remotely operated by a remote control box. Next, details of the aggregate coating apparatus of the present embodiment will be described with reference to FIGS. In these figures, A
Is a popper device portion, B is a coating tank device portion, C is a vibrating sieve device portion, and D is a remote control box portion.

The popper device portion A includes a hopper device 1 for storing rubber aggregates, a rotor device 2 having a plurality of rings arranged so as to surely pick up the rubber aggregates one by one, and An electric motor 3 for driving the motor 2 is mounted, and these are connected to each other via a sprocket 4 via a chain (not shown). By operating the remote control box portion D, the rotation of the electric motor 3 is controlled, and the rotation speed of the rotor device 2 can be arbitrarily varied.

A gate device 5 for adjusting the amount of rubber aggregate is mounted on the lower front part of the popper device 1. The coating tank unit B is provided with an asphalt emulsion tank 6 for storing asphalt emulsion and a multi-row chain conveyor 7 for drawing coated rubber aggregate from the asphalt emulsion tank 6 at a predetermined angle.

The speed of the chain conveyor 7 is transmitted via a chain 9 from an electric motor 8 which can control the coating time by arbitrarily adjusting the coating time. Then, the coated and individually drawn rubber aggregate is dropped into the vibrating sieve device portion C via the chute port 10. The chute opening 10 is provided with a stone powder spraying device 11 for the purpose of preventing solidification of the coated rubber aggregate.

A heating device 12 is provided at a lower portion of the asphalt emulsion tank 6, and a partition plate 13 (to prevent rubber aggregates drawn from the popper device portion A from contacting each other) is provided at an upper portion thereof. The chain conveyors are mounted on both sides of each of the conveyors 7. In the vibrating sieve device portion C, a sieve device 14 for separating stone powder and rubber aggregate is provided on the gantry 15a, 15b at a predetermined appropriate angle. By changing the length of the gantry 15a, 15b, the angle of the sieve can be arbitrarily adjusted.

A vibration device 16 having an eccentric shaft and an unbalanced weight is mounted on the sieve device 14, and power is transmitted via a belt 18 by an electric motor 17 whose rotation speed can be arbitrarily varied. Further, an iron plate 19 is provided on the upper portion of the bottom of the sieve device 14, and a mesh 20 is provided on the lower portion of the sieve device 14 so that the rubber aggregate does not fall off.

In the sieving apparatus 14, the electric motor 17 is rotated in the reverse direction to apply vibration, so that the stone powder having a low specific gravity accumulates in the iron plate portion 19, and the rubber aggregate having a high specific gravity passes through the net 20 and is collected. Dropped in a box. In this case, the angle of the sieve device 14 is an important factor. Further, the sieving device 14 is connected to the gantry 1 via a coil spring 21 for absorbing vibration.
5a and 15b.

Further, the power operation of the popper unit A, the coating tank unit B and the vibrating sieve unit C can be easily remotely controlled from the remote control box D. Next, the configuration of the rotor device 2 will be described with reference to FIGS. The rotor device 2 includes a shaft component 2
2, a ring component 23 having a plurality of deformed slots 23a on the outer peripheral surface for scooping the rubber aggregate, and a width adjusting ring for preventing the rubber aggregate from coming into contact with each other when falling into the asphalt emulsion tank 6. 24.

The shaft component 22 is provided with the ring component 23 and the width adjusting ring 24 attached to each other. Each of the ring component 23 and the width adjusting ring 24 has a plurality of fixing holes 25 formed therein. And is fixed with a through bolt (not shown). A driving sprocket part 4 is mounted on one end of the shaft part 22. Next, the configuration of the chain conveyor device 7 will be described with reference to FIG.

A drive shaft 26 is provided with a plurality of transport chain devices 27 and a plurality of fixing sprockets 28 in which several chains are integrated, and a sprocket 29 for driving the transport chain device 27 to one side of the shaft 26. Is attached. In addition, partition plates 13 are provided on both sides of the transport chain device 27 so that rubber aggregates do not contact each other.

On both sides of the drive shaft 26, this is
A bearing device 30 for supporting on the 5a, 15b is attached. According to the aggregate coating apparatus having such a configuration, the following operation and effect can be obtained. In other words, coated rubber aggregates solidify when stored for a long period of time, so they need to be manufactured immediately before use.However, this aggregate coating device is transported near the construction site and easily assembled, It can be produced immediately before using precoated rubber aggregates coated with asphalt emulsion.

[0025] For this reason, a pre-coated rubber aggregate having a constant and stable quality can always be used, so that it is securely held in a state of being embedded in a pavement, and the problem of peeling and scattering at a later date does not occur. Therefore, as a result, the effect of suppressing the freezing of the road surface can be maintained for a long period of time. Further, according to the aggregate coating apparatus having such a configuration, there are the following advantages. (1) Even if a stationary asphalt plant is not used, a pre-coated rubber aggregate can be manufactured by the present apparatus, so that the cost of the material can be reduced and manpower can be saved. (2) Even a small amount of pre-coated rubber aggregate can be easily manufactured, and it is not necessary for an operator to manufacture by hand as in the past. Can be resolved.

[0026]

As described above, according to the aggregate coating apparatus of the first aspect of the present invention, a precoated aggregate coated with a liquid agent can be manufactured immediately before use, and the quality is always constant. A stable pre-coated aggregate can be used. Also, without using a stationary asphalt plant, it is possible to produce pre-coated aggregates,
In addition to reducing the cost of the material, it can also save labor and can easily manufacture even a small amount of pre-coated aggregate, and the worker manually manufactures it as before. No need.

According to the second aspect of the present invention, it is possible to arbitrarily select the coating time of the aggregate dropped from the popper unit into the liquid agent tank. According to the third aspect of the invention, by the weight ratio of the material to be sieved and the appropriate angle, the light powder material is accumulated at the upper portion, and the heavy aggregate is effectively discharged, so that the sieving is reliably performed. be able to.

According to the fourth aspect of the present invention, it is possible to easily assemble the apparatus by transporting it near the construction site. Claim 5
According to the present invention, each device part can be remotely operated. According to the invention of claim 6, the work of scooping the aggregate can be reliably performed, and the aggregates can be effectively prevented from coming into contact with each other when falling into the liquid agent tank.

[Brief description of the drawings]

FIG. 1 is a front view showing a schematic structure of an embodiment of an aggregate coating apparatus according to the present invention.

FIGS. 2A and 2B are diagrams showing a configuration of a popper device portion in the embodiment, in which FIG. 2A is a front view and FIG.

FIG. 3 is a diagram showing a configuration of a coating tank device part in the embodiment of the above, (A) is a front view, and (B) is a side view.

FIG. 4 is a diagram showing a configuration of a vibrating sieve device portion in the embodiment of the above, (A) is a front view, and (B) is a side view.

5A and 5B are diagrams showing a configuration of a rotor device according to the embodiment, wherein FIG. 5A is a front view and FIG. 5B is a front view of a shaft component;

6A and 6B are diagrams showing a configuration of a ring component of the rotor device, in which FIG. 6A is a front view and FIG. 6B is a side view.

FIG. 7 is a partially enlarged view of a deformed slot in the ring component.

8A and 8B are diagrams showing a configuration of a width adjusting ring of the rotor device, in which FIG. 8A is a front view and FIG.

FIG. 9 is a diagram showing a configuration of a chain conveyor device according to the same embodiment, where (A) is a front view and (B) is a side view.

[Explanation of symbols]

 Reference Signs List A Popper unit B Coating tank unit C Vibrating sieve unit D Remote control box unit 1 Hopper unit 2 Rotor unit 6 Asphalt emulsion tank 7 Chain conveyor unit 14 Sieve unit

Claims (6)

[Claims] 1. A popper device for storing a fixed amount of aggregate to be coated, and a cylinder having a hole formed in a circumferential surface thereof mounted on a lower portion thereof so that the aggregate can be scooped one by one. A rotor device in which a plurality of rotors are arranged in one axis in a single axis; a liquid agent storage tank for storing a liquid agent to be coated on the scooped aggregate; And a vibrating sieve device having a device for sprinkling powder material to prevent solidification of the pulled-out aggregate. Features aggregate coating equipment. 2. The aggregate coating apparatus according to claim 1, wherein the transfer device in the coating tank device portion has a structure in which the transfer speed is arbitrarily variable. 3. The vibrating sieve unit is installed at a predetermined angle, and a plate is stretched on an upper portion thereof so that the powder material is collected without falling, and a powder material is formed on a lower portion thereof. The aggregate coating apparatus according to claim 1 or 2, wherein a net for separating the aggregate and the aggregate is stretched. 4. The aggregate according to claim 1, wherein the popper device, the coating tank device, and the vibrating sieve device are separated and independent from each other. Coating equipment. 5. The aggregate coating according to claim 1, wherein said popper unit, said coating tank unit and said vibrating screen unit are remotely operable. apparatus. 6. The rotor device according to claim 1, wherein the shaft component, a ring component having a plurality of deformed slots for scooping the aggregate on the outer peripheral surface, and the aggregate not contacting each other when the aggregate falls into the liquid tank. The aggregate coating apparatus according to any one of claims 1 to 5, further comprising: a width adjusting ring for adjusting a width of the aggregate.