KR101129599B1 - Apparatus for disposing dust and oil particle in facility of regenerating waste ascon - Google Patents

Abstract

PURPOSE: An apparatus for disposing waste asphalt concrete dust and oil in waste asphalt concrete recycling equipment is provided to efficiently collect dust, oil, and an offensive odor generated when wste asphalt concrete is heated and melted. CONSTITUTION: An apparatus for disposing waste asphalt concrete dust and oil in waste asphalt concrete recycling equipment is composed as follows. An exhaust pipe(72) connected to an asphalt concrete silo is installed. The asphalt concrete silo is located at the rear of a recycling dryer. The recycling dryer heats and melts waste asphalt concrete put from a recycling asphalt concrete plant. A small combustor(80) having a burner(82) and a combustion chamber(84) is installed in the exhaust pipe. A fireproof wall(86) is formed inside the combustion chamber and burns dust and oil of waste asphalt concrete discharged from the asphalt concrete silo. The exhaust pipe is connected to a back filter through a cyclone.

Description

Waste ascon dust and oil treatment equipment in waste ascon regeneration facility {APPARATUS FOR DISPOSING DUST AND OIL PARTICLE IN FACILITY OF REGENERATING WASTE ASCON}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facility for recycling waste ascon, and in particular, oil, dust, and odor generated from a regeneration dryer in a facility for recycling waste of asphalt concrete (referred to as "waste ascon") used for paving roads and the like. The present invention relates to an improvement of an apparatus for processing a back and the like.

Ascon refers to asphalt concrete, which refers to a mixture of asphalt and sand, gravel, dust, and additives, and is heated, and is widely used in road paving and parking lots. Generally, about 900kg of asphalt concrete, about 900 ~ 950kg of aggregates (gravel, sand, dust, fila) and about 30 ~ 50kg of asphalt are contained. If it is collected by the industrial waste is classified as industrial waste is disposed of or disposed as waste.

Currently, some developed countries recycle 80-90% of the waste ascon, and Korea is strongly recommending recycling of the waste ascon. In addition, the waste ascon recycling policy has been supplemented and strengthened systematically, and progress has been made in terms of facilities for recycling waste ascon.

However, recycled ascon facilities that can recycle waste ascon still expose many problems.

Regenerated ascon facilities are implemented in various forms, including room temperature regenerated ascon equipment and heated regenerated ascon equipment. Currently, it is common in Korea to produce regenerated ascons by using a heated regenerated ascon equipment.

Heat regeneration ascon equipment is a facility to obtain regenerated ascon by heating and melting the separately collected waste ascon with a burner and a dryer and injecting the melted waste ascon into a mixer which is a new ascon mixing unit and mixing new aggregate and additive together. Are classified into a top type and a skip type.

An example of the prior art of the top-type heat regeneration ascon facility is the Korean Patent Application Publication No. 10-2011-0037443, "Method of manufacturing odor preventing regeneration ascon".

In the case of the reclaimed ascon facility of the prior art, when the crushed waste ascon stored in the cold bin, which is a reservoir, transfers the waste ascon to the upper regenerated dryer through a conveying means such as a conveyor and a hot elevator. In the regeneration dryer, waste ascon is heated and melted using an internal burner. In addition, the oil, dust, and odor generated in the process of heating and melting the waste ascon inside the regeneration dryer are returned to the regeneration dryer again through the recirculation year, and the oil or dust, In order to process the residual matters such as odor, it is collected by the dust collector through the flue formed in the regeneration dryer outlet.

It is normal to treat oil, dust, and odor generated during waste ascon heating with a separate dust collector in the recycled ascon facility, but the burden of installation and the excessive cost due to the separate dust collector are a burden. Therefore, a large number of recycled ascon facilities in Korea do not have a separate dust collector, and are connected to the dust collector of the new ascon facility.

However, common use of these dust collectors is that oil and odor generated during waste ascon heating are introduced directly into the bag filter, which is the dust collector of the new ascon plant, with dust. It had to be replaced frequently.

Accordingly, it is an object of the present invention to provide a waste ascon dust and oil treatment apparatus for collecting dust, dust, odors, etc. generated when heating and melting the waste ascon smoothly.

According to the above object, the present invention, in the waste ascon regeneration facility, the exhaust pipe connected to the ascon silo (39) located behind the regeneration dryer (36) for heating and melting the waste ascon injected from the regeneration ascon plant (200). 72 and a small combustor 80 having a burner 82 at the front end of the exhaust pipe 72 and a fireproof wall 86 formed in the combustion chamber 84 is discharged from the ascon silo 39. The dust and oil of the waste ascon is incinerated, and the exhaust pipe 72 is connected to the bag filter 26 which is a dust collector of the new ascon plant 100 through the cyclone 76 in the waste ascon regeneration facility. Waste ascon dust and oil treatment equipment.

In constructing the waste ascon dust and oil treatment apparatus in the waste ascon recycling apparatus according to the present invention, a plurality of filter holes 90a have a rear space 92 in the ascon silo 39 at the inlet side of the exhaust pipe 72. The filter plate body 90 is formed.

In the filter plate body 90, the total cross-sectional area of the filter holes 90a is formed to be larger than the diameter cross-sectional area of the exhaust pipe 72.

In addition, in the present invention, in the regeneration dryer 36, the crater 38 formed thickly with the fireproof wall 62 in front of the cylindrical dryer main body 60 is formed to communicate with each other. Waste heat recovery pipe (70) is installed between the outlet and the crater (38), and the dust and oil generated by the waste ascon heating input to the dryer main body (60) are returned to the waste heat recovery pipe (70). Waste incineration dust and oil treatment system are configured to incinerate.

The present invention provides oil, dust, odor and the like through a combustor installed on the exhaust pipe before entering the bag filter provided in the new ascon plant collecting dust, dust, and odor generated when heating and melting aggregates of waste ascon. Complete combustion and removal can increase the life of the expensive bag filter provided in the dust collector of the new Ascon plant. In addition, the dust of the new aggregate collected through the bag filter and then fed back into the mixer is prevented from being adsorbed to the pores of the dust collecting filter, thereby improving the recyclability of the dust through the bag filter.

1 is a schematic configuration diagram of a tower type heating regeneration ascon facility according to an embodiment of the present invention;
Figure 2 is a procedure showing a process of producing recycled ascon by recycling the waste ascon using the ascon facility of Figure 1,
3 is a cross-sectional configuration of the main part of the recycled asphalt concrete plant according to an embodiment of the present invention,
Figure 4 is a block diagram for processing the dust and oil of the waste ascon generated in the regeneration dryer according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic configuration diagram of a top type regenerated heating ascon facility according to an embodiment of the present invention, and FIG. 2 is a procedure showing a process of producing recycled ascon by recycling waste ascon using the regenerated heating ascon facility of FIG. 1. It is also.

Recycled ascon produced by recycling waste ascon is produced by mixing recycled aggregate from waste ascon and new aggregate and additives together, and the dust generated when manufacturing new ascon with recycled aggregate is recycled in the present invention. Equipped.

A general operation of the top type reclaimed ascon facility (A) of the present invention will be described below with reference to FIGS. 1 and 2.

1) Production flow description in new Ascon plant 100

The new aggregate, which is selectively stacked in the cold bin (1), which is a new aggregate storage, is heated by a belt feeder (2), a horizontal conveyor (3), and an inclined conveyor (4). 5) is heated to a constant temperature as the heat of the burner (6) and then aboard the hot elevator (7) (8) (9) to rise and then the vibrating screen (10), which is a device for sorting fresh aggregates by size Passed through is temporarily stored in the hot bin (11). Aggregate temporarily stored in the hot bin 11 is weighed in a scale hopper 12 based on production data input into the input device by the manufacturer and then fed into the mixer 13, and the new aggregate in the mixer 13. When mixed with new asphalt, it becomes new asphalt.

2) Dust Recycling Flow Description

Dust generated in the new ascon plant 100 is collected in the lower bag via a bag filter 26, which is a dust collector, by the suction force of the air blower 27. The dust collected in this way is a dust scale, which is a dust silo 18 and a metering device, through a screw 14, 15 in the bag, a dust elevator 16, and a two way damper 17. After passing through the dust bin (dust bin) 19 is provided to the mixer 13 is recycled.

3) Description of Production Flow in Reclaimed Ascon Plant 200

The waste ascons sorted and stacked in the cold bin 30, which is a storage of the waste ascons, are lifted through the belt feeder 31, the horizontal conveyor 32, and the inclined conveyor 33. It is transferred to the dryer 36, which is a heating device, after the ride up 35, and is indirectly heated to a temperature of 140 ° C. or higher as the heat of the burner 37 and the fireball 38, and then temporarily stored in an ascon silo 39. The waste ascon temporarily stored in the ascon silo 39 is weighed in an ascon scale hopper 40 based on the production data of the manufacturer's request entered through the input device and then transferred to a conveyer 41 such as a conveyor or trolly. It is input to the mixer 13 through).

In the mixer 13, the recycled aggregate provided from the recycled ascon plant provided by the recycled asphalt concrete plant 200 and the recycled aggregate provided from the recycled asphalt concrete plant 100 together with additives introduced from the outside to produce recycled asphalt concrete, The recycled ascon produced in 13) is loaded into the truck and shipped.

4) process flow of oil, dust, and odor generated in the recycled ascon plant 200

The waste ascone transferred to the regeneration dryer 36 is heated while being rotated. At this time, the heat, dust, oil and the like is recycled along the upper waste heat recovery pipe 70 of the ascon silo 39 and flowed back into the regeneration dryer 36, while the air blower of the new ascon plant 100 27) As a result of the suction force, etc., the oil and dust of the waste ascon pass through the exhaust pipe 72 and the flue 74 and the silo clone 76 communicated with the ascon silo 39, but are installed on the exhaust pipe 72. After the incineration process in the) is collected in the lower bag (bag) through the bag filter 26, which is a dust collector of the new ascon plant 100, after being filtered through the bag filter 26 chimney (29) It is discharged through the outside.

Hereinafter, dusts and oils generated from the regeneration dryer 36 in the reclaimed asphalt concrete plant 200 according to the exemplary embodiment of the present invention will be described in more detail with reference to FIGS. 3 and 4.

3 is a cross-sectional view of the regeneration dryer 36 in the reclaimed ascon plant 200 and the ascon silo 39 behind it according to an embodiment of the present invention.

When the waste ascon is turned inside the dryer main body 60, which is a heating furnace of the regeneration dryer 36, and is heated and melted by the internal hot air, the flames emitted from the burner 37 do not directly contact the waste ascon. It is configured to deliver the indirect heat heated through) into the dryer body 60 into which the waste ascon is introduced.

In addition, the regeneration dryer 36 forms a fireproof wall 62 on the inner circumferential surface of the crater 38 so that the thermal power of the burner 37 heats the fireproof wall 62 of the crater 38 so that the heated ascon is By inflowing into the drier main body 60, high indirect heat of 140 ° C. or higher, which is an appropriate heating temperature for melting the waste ascon, is provided into the drier main body 60, so that there is no risk of fire or the like. The injected waste ascon melts well so that a good recycled aggregate is obtained. Furthermore, the high temperature hot air further heated in the crater 38 made of the fireproof wall 62 increases the concentration efficiency of the indirect heat that is concentrated and supplied to the dryer main body 60 deep shaft through the heat intensive induction pipe 64 and the diarrhea burner 37 Even if the flame is extended, it is configured not to be directly applied as heat directly to the waste ascon by the heat intensive induction pipe 64.

Also in the construction of the dryer main body 60, a plurality of heat intensive induction pipes 64 having a plurality of heat dissipation perforations 68b formed in the core portion of the cylindrical dryer main body 60 are installed in series and discharged from the burner 37. Thermal power is transmitted to the crater 38 and the heat heated through the crater 38 can be guided to the core of the dryer body 60, allowing the waste ascon to be pumped to the inner circumferential surface of the rotating dryer body 60. The mesh bucket 66 is arranged in an array.

The regeneration dryer 36 adopts the thermal power applied to the regeneration dryer 36, which is a heating furnace for heating and melting the crushed waste ascon, by using an indirect heating method instead of a direct heating method to prevent the risk of fire and indirectly. In the heating method, the internal temperature of the regeneration dryer 36 is maintained at 140 ° C. or higher, thereby ideally melting the waste ascon to obtain high quality recycled ascon and at the same time preventing the coating of asphalt from occurring in the regeneration dryer 36. The maintenance of the regeneration dryer 36 is also facilitated.

Ascon silo 39 is installed in the outlet of the regeneration dryer 36 of the present invention as described above. Ascon silo (39) receives the recycled aggregate discharged as it is melted through the regeneration dryer (36), while temporarily storing the appropriate amount obtained through the metering of the lower ascon scale hopper (40) transfer means 41, such as a conveyor or trolley To the mixer (13). At the same time, waste heat, oil, dust, and odor generated in the process of heating and melting the waste ascon in the regeneration dryer 36 are returned to the burner 37 through the waste heat recovery pipe 70, and the fireproof wall 62 Induced to be burned again in the crater (38).

Return fan (71) is installed in the waste heat recovery pipe (70), and the return wind pressure by the return fan (71) is the burner blower at the end of the recirculation end of the waste heat recovery pipe (70) which is located at the beginning of the crater (38). A guide plate 73 is provided to guide the mainstream wind pressure of the burner blower 37a so as not to interfere with the mainstream wind pressure of 37a.

In the ascon silo 39 behind the regeneration dryer 36, the exhaust pipe 72 and the flue 74 are connected to the cyclone 76 in the new ascon plant 100 to communicate with the dust collector connected to the cyclone 76. do.

In particular, in the present invention, the dust and oil (oil, dust, odor, etc.) sucked into the exhaust pipe (72) is dust collected in the bag filter (26) by the suction operation of the blower (27) provided in the new ascon plant (100). However, since it burns while passing through the combustor 80 installed in the exhaust pipe 72, oil, dust, odors, etc. are removed and the remaining non-combustible dust is collected in the lower bag through the bag filter 26. Dust collected in bags is used as a material to mix for the production of recycled ascon.

Referring to FIG. 4, a small combustor 80 having a combustion chamber 84 is installed on the exhaust pipe 72 connected to the ascon silo 39 located behind the regeneration dryer 36. The small combustor 80 is equipped with the burner 82 equipped with the blower 82a at the front-end | tip of the combustion chamber 84, and is comprised so that the fireproof wall 86 may be formed in the combustion chamber 84. As shown in FIG.

The refractory wall 86 installed in the combustion chamber 84 is preferably formed as a castable (heat-resistant brick) or a heat-resistant brick having excellent fire resistance and durability, and this is not limited to the high heat of the burner 82 in the small combustor 80. It not only resists well but also has excellent thermal insulation, which prevents heat from leaking to the outside, thereby preventing heat loss and rapidly increasing the internal temperature of the combustion chamber 84 in a short time even with a small amount of fuel.

By the combustion action of the small combustor 80 installed on the exhaust pipe 72, the oil, dust, and odor introduced into the exhaust pipe 72 are incinerated, and only the non-combustible dust is used to remove the cyclone 76 connected to the exhaust pipe 72. The filter is directed to the bag filter 26, which is a dust collector of the new ascon plant 100, and light dust without oil flows into the bag filter 26, thereby minimizing the phenomenon of sticking to the perforations of the bag filter 26 and It lasts longer.

In the configuration installed in the exhaust pipe 72, reference numeral “78” denotes a damper for adjusting the flow rate.

In the present invention, the inlet pipe 72 is formed in the upper side wall of the ascon silo 39, the inlet of the waste heat recovery pipe 70 is formed in the ceiling of the ascon silo 39.

In the exhaust pipe 72, the suction force of the blower 27 in the new material Ascon plant 100 acts more strongly than the suction force of the return fan 71 of the waste heat recovery pipe 70, so that the rather thick pieces may enter the exhaust pipe 72 directly. have.

Therefore, in the present invention, the filter plate body 90 having the rear space portion 92 and the plurality of filter holes 90a formed vertically on the side wall of the ascon silo 39, that is, the ascon silo 39 at the inlet side of the exhaust pipe 72 is vertically formed. To allow preprocessing filtering. Sides and bottoms of the filter plate body 90 and the rear space portion 92 are formed with a support bar, and the filter plate body 90 having the filter hole 90a faces the outlet of the regeneration dryer 36. to be.

The present inventors confirmed that pretreatment filtering by the filter plate body 90 in which the rear space 92 is formed also acts as a cyclone of centrifugation and is effective in removing oil, dust, and odors.

At this time, if the total cross-sectional area of the filter holes 90a of the filter plate body 90 is formed to be larger than the diameter cross-sectional area of the exhaust pipe 72, air suction does not interfere, and the small combustor on the regeneration dryer 36 and the exhaust pipe 72 ( 80) will not reduce the combustion efficiency.

The filter hole 90a of the filter plate body 90 may be perforated, but by welding the short pipe 91 after the perforation, the cyclone enhancement effect and the filter performance can be improved.

Therefore, as waste ascon passes through the regeneration dryer 36, the molten reclaimed aggregate exits the ascon silo 39, and the oil and fine dusts pass through the rear exhaust pipe through the filter hole 90a of the filter plate 90 located in front. While rapidly entering the combustor 80 connected to the 72, while the pieces of waste ascon hit the filter plate body 90 to block the escape to the exhaust pipe 72, and then through the exhaust pipe 72 the combustor 80 ), The oil or dust, etc., is burned by the high heat of the fireproof wall 86 of the combustion chamber 84 of the small combustor 80 to remove the oil, dust, and odor generated from the waste ascon to the maximum, and the remaining nonflammable Only the dust is sent to the dust collector of the new ascon plant (100).

In addition, the oil, dust, and odor recovered from the ascon silo 39 through the return fan 71 of the waste heat recovery pipe 70 are discharged to the crater 38 as a starting part, and then the fire wall (38) embedded in the crater 38 ( After being burned by the hot heat of 62 and the flame of the burner 37, it is again fed into the dryer main body 60 of the regeneration dryer 36.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. Therefore, the scope of the present invention should not be defined by the described embodiments, but should be determined by the claims and their equivalents.

The present invention can be used as a device for recycling recycled ascon to produce recycled ascon.

(26)-Bag Filter (27)-Blower
(36)-Regeneration Dryer (37)-Burner
(38)-Crater (39)-Ascon Silos
(60)-Dryer body (62)-Fireproof wall
(64)-Heat Concentration Pipe (66)-Bucket
(72)-Exhaust Pipe (73)-Sign
(74)-Year (76)-Cyclone
(80)-Compact Combustor (82)-Burner
(84)-combustion chamber (86)-fireproof wall
(90)-Filter plate (90a)-Filter ball
(91)-Canal
(100)-New Ash Ascon Plant (200)-Recycled Ascon Plant

Claims (4)

delete In the waste ascon recycling facility,
The exhaust pipe 72 connected to the ascon silo 39 located at the rear of the regeneration dryer 36 for heating and melting the waste ascon injected from the reclaimed ascon plant 200 is mounted, and the burner 82 is disposed at the front end of the exhaust pipe 72. And a small combustor 80 having a fireproof wall 86 formed in the combustion chamber 84 so that dust and oil of waste ascon discharged from the ascon silo 39 are incinerated, and the exhaust pipe 72 is disposed. ) Is configured to be connected to the bag filter 26 which is the dust collector of the new ascon plant 100 through the cyclone 76, and has a rear space 92 in the ascon silo 39 at the inlet side of the exhaust pipe 72. Waste ascon dust and oil treatment apparatus in the waste ascon regeneration facility, characterized in that the filter plate body 90 is formed with a plurality of filter holes (90a).
3. The waste ascon dust and oil treatment apparatus according to claim 2, wherein the total cross-sectional area of the filter holes (90a) in the filter plate body (90a) is formed to be larger than the diameter cross-sectional area of the exhaust pipe (72).
In the waste ascon recycling facility,
The exhaust pipe 72 connected to the ascon silo 39 located at the rear of the regeneration dryer 36 for heating and melting the waste ascon injected from the reclaimed ascon plant 200 is mounted, and the burner 82 is disposed at the front end of the exhaust pipe 72. And a small combustor 80 having a fireproof wall 86 formed in the combustion chamber 84 so that dust and oil of waste ascon discharged from the ascon silo 39 are incinerated, and the exhaust pipe 72 is disposed. ) Is connected to the bag filter 26 which is the dust collector of the new ascon plant 100 through the cyclone 76, and in the configuration of the regeneration dryer 36, fireproof in front of the cylindrical dryer main body 60 The main body 38 is formed to communicate with the wall 62, and the waste heat recovery pipe 70 is installed in communication between the outlet of the dryer main body 60 and the first entrance to the crater 38. Depending on the waste ascon heated Production are waste heat recovery tube 70 is a waste asphalt dust and oil processing apparatus at the asphalt concrete waste recovery plant, it characterized in that the portion configured to be incinerated and the dust fraction of the session.

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