WO2005090035A1

WO2005090035A1 - Movable apparatus for storing asphalt concrete

Info

Publication number: WO2005090035A1
Application number: PCT/KR2005/000629
Authority: WO
Inventors: Un Cheol Shin
Original assignee: Un Cheol Shin
Priority date: 2004-03-19
Filing date: 2005-03-07
Publication date: 2005-09-29

Abstract

Disclosed herein is a movable apparatus for storing ASCON, which stores asphalt concrete, including a container having an opening formed on the top thereof and a storage formed therein in order to store asphalt concrete, a heater installed at one side of the container, a fluid passageway formed extendedly from the heater and fluid-communicated with the storage, and a blower for supplying the heat generated by the heater to the storage via the fluid passageway, in which a shutter is included in the opening, and an ASCON discharger is provided inside the container. According to the invention, at a field work casting a portion of damaged surface of asphalt pavement, and a manhole or a portion of asphalt pavement, the internal temperature of the container in which ASCON is stored can be maintained constantly for long.

Description

Description MOVABLE APPARATUS FOR STORING ASPHALT CONCRETE Technical Field

[1] The present invention relates to a movable apparatus for storing asphalt concrete. More specifically, the invention relates to such a moveable apparatus for storing asphalt concrete, which provides hot air continuously inside a container so as to maintain temperature of ASCON constantly for a long time during a field work, and discharges ASCON invariably. Background Art

[2] Asphalt concrete (hereafter, referred to as "ASCON") used for roads is hydrocarbon material, solid or semisolid black substance in which a solid constituent called asphaltine is dispersed in an oil phase constituent called martine, which is used for paving roads and runways according to the type, or for waterproof processing in the field of pavement or construction. Specifically, asphalt mostly used for paving roads and runways is mixed with sand, crushed rocks, broken stones, and pebbles, which is called as ASCON or asphalt concrete.

[3] As shown in FIG. 1, in a general facility for making ASCON, aggregates supplied from an aggregate box 10, which contains aggregates such as broken stones, sand, crushed rocks, and pebbles, is transferred to the inside of a drier 30 via a conveyer belt 20, and an oil burner 40 applies heat to the aggregates filled in the drier 30. Dust and harmful gas generated when the aggregates are burnt by the oil burner 40 are exhausted outside by an air exhauster 45 and a dust collector (not shown). In addition, the heated aggregates in the drier 30 are transferred to a screen 50 by a transport elevator 80, and, after being categorized by size in the screen 50, the aggregates are descended to be transferred to a mixer 60. Inside the mixer 60, the aggregates are mixed with asphalt and various fine fillers supplied by a filler-tower 70, and so ASCON is made. ASCON made in this way is loaded onto an ASCON carrying vehicle waiting under the mixer 60 and is carried to a work field.

[4] Dump trucks substitute for vehicles carrying ASCON made in this way, and ASCON is loaded onto a carrying vehicle at the temperature as high as between 180°C and 200°C, and carried to a work field. However, as passes by the time for carrying the ASCON, which is loaded onto a carrying vehicle, the roof of which is open, to a work field and the time for working at a work field, the temperature gradually goes down to below 150°C which falls short of an appropriate temperature of ASCON to be used for paving roads or runways. [5] Therefore, when the ASCON with considerably lowered temperature is used at a work field paving a road, the ASCON unloaded to the ground is to be flattened by a mixer. In addition, when repairing a portion of a damaged road which is already paved or paving an area where a manhole is laid, the ASCON with a lowered temperature is used, making the work unfavorable. Specifically, in case of a trivial pavement reinforcing areas around manholes, since the manholes are laid over some kilometers at a regular interval, considerable time passes by while work is being done. By the way, as time passes by while repairing/maintaining roads for a long time in this way, a portion of ASCON which has lowered temperature is hardened. Accordingly, at a work field where working hours have passed, the hardened ASCON cannot be used, and, in case the amount of the hardened ASCON is small, the ASCON is dumped at one side of a road, raising an issue of environmental pollution.

[6] Also, dump trucks substitute for conventional ASCON carrying vehicles, so that, when the ASCON stored at a truck is unloaded at a work field, a predetermined amount of ASCON is unship by an excavator (another name is forkcrane ), or an appropriate amount of ASCON is unloaded by workers using shovels. On this account, much working time is required and many workers are needed. Disclosure of Invention Technical Problem

[7] The present invention has been made in order to solve the above problems occurring in the art, and it is an object of the invention to provide a movable apparatus for storing asphalt concrete which supplies hot air continuously inside the container in which ASCON is stored so as to reduce the loss of temperature of ASCON. Another object of the invention is to shorten working hours and to minimize the number of workers and additional equipments for working. Technical Solution

[8] In order to accomplish the above object, according to one aspect of the present invention, there is provided a movable apparatus for storing asphalt concrete. The movable apparatus for storing asphalt concrete includes a container having an opening formed on the top thereof and a storage formed therein in order to store asphalt concrete, a heater installed at one side of the container, a fluid passageway formed extendedly from the heater and fluid-communicated with the storage, and a blower for supplying the heat generated by the heater to the storage via the fluid passageway, in which a shutter is included in the opening.

[9] In a preferable embodiment according to the movable apparatus for storing asphalt concrete of the invention, the fluid passageway is multiply formed at the bottom face and the side face of the container respectively. [10] In a preferable embodiment according to the movable apparatus for storing asphalt concrete of the invention, a sensor is installed inside the storage so as to detect the temperature of heat, and a display is provided at one side of the container.

[11] In a preferable embodiment according to the movable apparatus for storing asphalt concrete of the invention, a passageway is formed between the storage and the fluid passageway.

[12] In a preferable embodiment according to the movable apparatus for storing asphalt concrete of the invention, the shutter is installed at both sides of the opening, and opened and closed to the left and right by a hydraulic cylinder. Also, the shutter is formed of fiberglass insulator. Advantageous Effects

[13] According to the movable apparatus for storing asphalt concrete of the invention, the following effects can be obtained.

[14] First, heated air is supplied inside a container storing asphalt concrete so that asphalt concrete may be preserved / stored at a high temperature inside the container for a long time. Therefore, the apparatus is useful for repairing around the upper portion of an area where a manhole is laid and the damaged surface of a portion of asphalt pavement.

[15] Second, fluid passageways are formed at the bottom face and the side face of a container respectively so that heat of high temperature may be supplied more effectively to the storage in which ASCON is stored.

[16] Third, a sensor is provided inside the storage so as to detect temperature of heat, and the temperature detected by the sensor is notified to a display so that a user may recognize easily. According to the temperature shown on the display, a controller can be operated automatically or manually in order to maintain an appropriate temperature.

[17] Fourth, multiple passageways are fluid-communicated with a portion of a storage from the fluid passageway so that heat is supplied to the inside of the storage via air, and, on account of the fluid passageway formed inside the side face and the bottom face, heat of high temperature can be supplied to the inside wall and bottom face of the storage in which ASCON is loaded.

[18] Fifth, shutters are installed at both sides of the opening respectively so as to be opened and closed to the left and right side of the storage so that asphalt concrete made at a factory is stored inside the container promptly.

[19] Sixth, the shutter can be form of glass materials in order to enhance the effect of heat insulation.

[20] That is, according to the movable apparatus for storing asphalt concrete, at a field work casting a portion of damaged surface of asphalt pavement, and a manhole or a portion of asphalt pavement, the heat of ASCON can be maintained for a long time.

[21] Seventh, together with the effects obtained from the first embodiment, due to the ASCON discharger provided in the second embodiment, ASCON can be easily unloaded from the storage, and, since ASCON is unloaded with the shutter closed, the heat of ASCON can be maintained for a long time as well.

[22] Eighth, ASCON is discharged invariably through a screw, and thus only an appropriate amount of ASCON is unloaded, so that ASCON is not left unattended at one side of a work field by. Brief Description of the Drawings

[23] Further objects and advantages of the invention can be more fully understood from the following detailed description taken in conjunction with the accompanying drawings, in which:

[24] FIG. 1 is a schematic view of a conventional ASCON production apparatus;

[25] FIG. 2 is a cross-sectional side view schematically showing a movable apparatus for storing ASCON according to the invention;

[26] FIG. 3 is a cross-sectional plain view showing a movable apparatus for storing ASCON according to the invention;

[27] FIG. 4 is a cross-sectional elevation showing a movable apparatus for storing ASCON according to the invention;

[28] FIG. 5 a cross-sectional side view showing a movable apparatus for storing ASCON according to the second embodiment of the invention; and

[29] FIG. 6 is a cross-sectional elevation showing a movable apparatus for storing ASCON according to the second embodiment of the invention. Best Mode for Carrying Out the Invention

[30] The preferred embodiments of the present invention will be hereafter described in detail with reference to the accompanying drawings. Also, the same reference numbers are given to the elements performing the same functions in the drawings.

[31] First, as described in the conventional technology, after passing through an ASCON production apparatus, a certain amount of ASCON is loaded onto the movable ASCON storing apparatus of the invention.

[32] Referring to FIGS. 2 to 4, the movable ASCON storing apparatus of the invention comprises a container 100 storing ASCON A made by the ASCON production apparatus. The container 100 includes a storage 110 and an opening 112, and a heater 130 is provided at one side of the container 100, together with a shutter 140 installed at the opening 112. That is, after filling ASCON A made by an ASCON production apparatus in the container 100, hot air is supplied inside the container 100, and, circulating the heat, ASCON is carried to a road pavement and repair/maintenance field.

[33] The container 100 includes an opening 112, the roof of which is open so as to put ASCON A therein, and a storage 110 which stores ASCON A. At a side face 114 or a bottom face 116 of the container 100, fluid passageways 118a, 118b are formed respectively. The fluid passageways 118a, 118b can be formed only either at the side face 114 or at the bottom face 116. In addition, the fluid passageways can be separated respectively to form multiple passageways or can be formed as one communicated fluid passageway 118a, 118b.

[34] In addition, the fluid passageways 118a, 118b are fluid-communicated with a passageway 119. The passageway 119 is divided into an outlet 119a formed at the side wall of the upper portion of the container 100 and an inlet 119b formed at one side of the container 100.

[35] The fluid passageways 118a, 118b are formed between the inlet 119b and the outlet 119a. The inlet 119b of the fluid passageway 118a, 118b is fluid-communicated with the heater 130, and the outlet 119a is fluid-communicated with the inside of the container 100. That is, the fluid passageways 118a, 118b are formed at the bottom face 116 and the side face 114 of the container 100 respectively. The passageway 119 is fluid-communicated with the fluid passageways 118a, 118b and formed at the side face 114 of the container.

[36] Meanwhile, a heater 130 is provided at one side of the container 100. The heater 130 converts electrical energy into heat energy, which is a well-known device used in various industrial fields and numerous devices that need heat energy, and thus details thereon will not be described here. In addition, the heater 130 is combined with a blower 150 at one side. The blower 150 is connected to the inlet 119b. Here, the blower 150 can be connected to one inlet 119b or multiple inlets 119b.

[37] Inside the container 100, i.e., a storage 110, a sensor 160 for detecting the temperature of heat is installed. Then, outside of the container 100, a display is provided which is connected to the sensor 160. Desirably, the sensor 160 is connected to a controller 180 and controls the operation of the heater 130 in order to maintain the internal temperature of the container 100 constantly.

[38] Meanwhile, the shutter 140 is installed at the opening 112. That is, the shutter is attached to both sides of the upper portion of the container 100, and is opened and closed automatically by a hydraulic cylinder (not shown). The shutter 140 is opened and closed moving toward the center in both directions. The shutter 140 is desirably formed of fiberglass insulator. The reason is that fiberglass insulator can reduce loss of heat ideally.

[39] Hereafter, explained is the operation of the movable apparatus for storing ASCON of the inventor, which is configured as described above in detail. [40] After mixing broken stones, sand, crushed rocks, and pebbles, the ASCON A made by a production apparatus is loaded onto the container 100 which is included in a carrying vehicle. After ASCON is filled in the container 100, the shutter 140 is closed, and ASCON is carried to an asphalt repair/maintenance field.

[41] At the work field, the shutter 140 of the container 100 is opened, and a certain amount of ASCON A is unloaded. After an appropriate amount of ASCON A is unloaded, the shutter 140 is closed, and the carrying vehicle loaded with ASCON A moves to another field. At this point, the temperature inside the container 100 goes down gradually according to the moving time and the long waiting time for repair/ maintenance work. Therefore, the sensor 160 included inside the container 100 detects the internal temperature of the container 100, and, if the temperature goes below the predetermined reference value, the heater 130 generates heat. The heat generated by the heater 130 is supplied to the inside of the container 100 by the blower 150 via the fluid passageways 118a, 118b which are fluid-communicated with the storage 110.

[42] Accordingly, the heat of high degree is continuously supplied to the inside of the container 100 in which ASCON A is stored, so that the temperature of ASCON can be prevented from being dropped. Mode for the Invention

[43] Meanwhile, the movable apparatus for storing ASCON, which has a second embodiment of the invention, includes a container having an opening formed on the top thereof and a storage formed therein in order to store asphalt concrete, a heater installed at one side of the container, a fluid passageway formed extendedly from the heater and fluid-communicated with the storage, and a blower for supplying the heat generated by the heater to the storage via the fluid passageway, in which a shutter is included in the opening, and an ASCON discharger is provided inside the container.

[44] In the second embodiment of the movable apparatus for storing ASCON according to the invention, the ASCON discharger includes a driver which is provided at one side of the container and operated by a controller, a rotation shaft which is connected to the driver and located at the inside bottom the container, and a screw which is combined with the rotation shaft, in which a discharging port is provided at the rear of the container.

[45] Hereafter, another embodiment of the movable apparatus for storing ASCON according to the invention is explained in detail referring to FIGS. 5 and 6.

[46] First, before explaining in detail the second embodiment of the movable apparatus for storing ASCON according to the invention, the same reference numbers are given to the elements performing the same functions as the elements of the first embodiment, and details thereon will not be described here. Only the elements of the second embodiment different from those of the first embodiment are explained in the followings. [47] The movable apparatus for storing ASCON, which has a second embodiment of the invention, includes an ASCON discharger 190 inside the container 100. [48] The ASCON discharger 190 includes, as described above, a driver 191, a rotation shaft 192, a screw 193, and a discharging port 194. [49] The driver 191 is provided near the heater 130 at the front outside of the container 100. The driver 191 is preferably formed of a drive motor operated by electric energy. However, the driver is structured so as to exert a rotation force so that an operator can operate manually. [50] Also, the driver 191 is assembled with the rotation shaft 192. Both ends of the rotation shaft 192 are inserted in the front and the rear of the container 100 respectively so that the rotation shaft 192 may rotate. A screw 193 of a spiral form is assembled at the outer periphery along the rotation shaft 192. Here, the rotation shaft 192 is located inside the container 100, more preferably located at the center of the bottom face 116 of the container 100. The bottom face 116 is formed respectively at both sides of screw 193 so as to have a slope. [51] A discharging port 194 is provided at the rear of the container 100, where the screw 193 is located. The discharging port 194 protrudes toward the outside of the container 100, and has an opening. [52] Hereafter, explained is the operation of the movable apparatus for storing ASCON of the inventor according to the second embodiment, configured as described above in detail. [53] ASCON A made by the production apparatus is loaded onto the container 100 which is included in the carrying vehicle. After ASCON is filled in the container 100, the shutter 140 is closed, and ASCON is carried to asphalt repair/maintenance fields. [54] When the ASCON stored in the container 100 at a work field is unloaded, the ASCON A is unloaded by the ASCON discharger 190 without opening the shutter 140. That is, the rotation shaft 192 assembled with the screw 193 in one piece rotates by the operation of the driver 191, and the ASCON A stored inside the container 100 is unloaded invariably by rotation force through the discharger 194. [55] Therefore, when ASCON A is unloaded, the shutter 140 is not always opened, and the temperature inside the container 100 lasts much longer, thereby preventing the temperature of the ASCON A from being dropped. Therefore, the invention has an effect of saving energy by minimizing the number of the operation of the heater 130, and thus the work unloading ASCON A is very easy. Industrial Applicability [56] As described above, in the movable apparatus for storing ASCON of the invention, heated air is supplied inside the container in which asphalt is stored, so that ASCON can be used for reinforcing damaged portions of asphalt pavement and around the upper portion of a manhole, being preserved/stored inside the container for a long time in a state not hardened. In addition, the shutter is not always opened when ASCON is unloaded, so that the temperature inside the container lasts much longer. Also, the invention has an effect of saving energy by minimizing the operation time of the heater. In this way, the movable apparatus for storing ASCON of the invention is advantageous in that reinforcement works of an asphalt pavement can be done for long using minimum energy.

[57] While the present invention has been described with reference to the particular illustrative embodiments, it is not to be restricted by the embodiments but only by the appended claims. It is to be appreciated that those skilled in the art can change or modify the embodiments without departing from the scope and spirit of the present invention.

Claims

[1] A movable apparatus for storing asphalt concrete comprising: a container having an opening formed on the top thereof and a storage formed therein in order to store asphalt concrete; a heater installed at one side of the container; a fluid passageway formed extendedly from the heater and fluid-communicated with the storage; and a blower for supplying the heat generated by the heater to the storage through the fluid passageway, wherein the opening is provided with a shutter. [2] The movable apparatus according to claim 1, wherein the fluid passageway is formed at a bottom surface or a side surface of the container. [3] The movable apparatus according to claim 1, wherein a sensor is installed inside the storage so as to detect the temperature of heat, and a display is provided at one side of the container. [4] The movable apparatus according to claim 1, wherein a passageway is formed between the storage and the fluid passageway. [5] The movable apparatus according to claim 1, wherein the shutter is installed at both sides of the opening and is opened and closed to the left and right by a hydraulic cylinder. [6] The movable apparatus according to claim 1 or 5, wherein the shutter is formed of fiberglass insulator. [7] A movable apparatus for storing asphalt concrete comprising: a container having an opening formed on the top thereof and a storage formed therein in order to store asphalt concrete; a heater installed at one side of the container; a fluid passageway formed extendedly from the heater and fluid-communicated with the storage; and a blower for supplying the heat generated by the heater to the storage through the fluid passageway, wherein a shutter is provided in the opening, and an ASCON discharger is provided inside the container. [8] The movable apparatus according to claim 7, wherein the ASCON discharger includes: a driver provided in the container and operated by a controller; a rotation shaft connected to the driver and fixed at the front and the rear of the container; and a screw combined with the rotation shaft; wherein a discharging port is provided at the rear of the container.