KR102398218B1 - Asphalt concrete manufacturing equipment for removing noxious gas using plasma and pyrolysis, and noxious gas removing method using the same - Google Patents

Abstract

The present invention relates to an asphalt concrete manufacturing device for removing harmful gases using plasma and pyrolysis, and a harmful gas removing method using the same, wherein dust, odors and harmful gases generated in a mixing step and a shipping step during an asphalt manufacturing process are sucked in, and plasma and thermal decomposition are sequentially performed to oxidize and decompose the odors and the harmful gases and to exhaust purified air, thereby preventing air pollution.

Description

Apparatus for removing harmful gases using plasma and pyrolysis and method for removing harmful gases using the same

The present invention relates to an apparatus for manufacturing asphalt concrete that removes harmful gases using plasma and thermal decomposition, and a method for removing harmful gases using the same.

Ascon is a mixture of aggregate (sand, gravel, etc.) or filler (filler, stone dust, etc.) and asphalt, and is used for road pavement or parking lots.

In the asphalt concrete manufacturing process, a screening step is performed after a heating step in which the aggregate is heated is performed.

After the selection step, the mixing step is performed after each of the aggregate or the filling material and the asphalt are weighed, and after the mixing step, the shipping step is performed in order.

In the heating step, there is a problem in that dust and harmful gases are generated as the aggregate is heated and dried in the dryer.

In order to remove the dust and noxious gas, a bag filter is configured at a position where the dust and noxious gas are exhausted from the dryer, but there is a limit to using the bag filter to remove the noxious gas.

In addition, there is a problem in that, in addition to the heating step, dust and harmful gases generated in the mixing step and the shipping step are discharged into the atmosphere, thereby causing air pollution.

The following relates to the background technology for removing dust and harmful gases generated during the manufacture of asphalt concrete as described above, and U.S. Patent No. 8,936,678 (hereinafter referred to as Document 1) and U.S. Patent No. 9,017,459 (hereinafter referred to as Document 2). ) is there.

Document 1 The invention relates to a process and equipment for removing harmful gases generated during cement clinker production in which a preheater, a cooling tower, a separation device, and a filter are sequentially performed in which harmful gas generated when raw powder is dried in a rotary kiln. it's about

However, in the invention of Document 1, since a catalyst for alkali hydrogen carbonate or alkali metal carbonate is used in the separation device, the fuel cost for combustion is low, but there are problems such as deterioration of function or the risk of explosion due to catalyst poison.

Document 2 The invention relates to a device for removing dust and odors generated from asphalt concrete, in which a centrifugal dust collector, a filtration filter, a cooling tower, activated carbon, and water are sequentially sprayed by forcibly sucking harmful gas discharged during the production of asphalt concrete.

However, the invention of Document 2 has a problem in that a large number of sites are required to equip the facilities as described above, and thus a large amount of cost is required.

<Background art literature>

(Document 1) US Patent No. 8,936,678

(Document 2) US Patent No. 9,017,459

An object of the present invention is to solve the problems of the background art, and to provide an asphalt concrete manufacturing apparatus for removing harmful gases using plasma and thermal decomposition, and a method for removing harmful gases using the same.

In particular, the present invention inhales dust, odors, and harmful gases generated in the mixing and shipping stages of the asphalt concrete manufacturing process, and then sequentially performs plasma and thermal decomposition to avoid discharging dust, odors, and harmful gases to the atmosphere. The purpose is to prevent contamination.

Another object of the present invention is to prevent fuel consumption by using a burner of a dryer without installing a separate burner during pyrolysis of harmful gas.

Furthermore, an object of the present invention is to prevent dust, odor, and harmful gases generated during the process of loading asphalt on a vehicle from being discharged to the outside by using an enveloping hood and an air curtain.

In order to achieve the above object, the asphalt concrete manufacturing apparatus for removing harmful gases using plasma and thermal decomposition of the present invention is connected to a dryer to apply heat to the dryer using fuel, and is connected to the decomposition device to remove the primary decomposition-treated dust and A burner in which noxious gas is introduced, but the noxious gas is decomposed by heat of 800°C or higher; a dryer in which aggregate is introduced, the aggregate is dried by heat introduced through a burner; a mixer in which a dryer and a raw material supply device are connected, so that dried aggregate and raw materials are introduced, and mixed to produce asphalt; a hood in which a vehicle for shipping the asphalt is introduced, dust and harmful gases are collected; a blower formed in a pipe positioned between the mixer and the hood and the decomposing device, and sucking dust and harmful gases generated from the mixer and the hood and transferring the blower to the decomposing device; and a decomposition device in which the introduced harmful gas is first decomposed using plasma; characterized in that it is included.

In the present invention, the hood includes a housing in which an entrance is formed to allow entry or exit of a vehicle, an inlet through which asphalt concrete discharged from the mixer is introduced on one side of the housing, and an exhaust port through which dust and harmful gases introduced through the inlet are sucked. characterized in that it is included.

In the present invention, the doorway is characterized in that any one or more of a curtain or an air curtain is further included in order to prevent dust and harmful gas from leaking to the outside when a vehicle is entered or taken out.

In addition, the asphalt concrete manufacturing apparatus for removing harmful gases using plasma and thermal decomposition of the present invention is connected to the dryer, characterized in that it further includes a dust collector for collecting dust.

In addition, the asphalt concrete manufacturing apparatus for removing harmful gases using plasma and thermal decomposition of the present invention is a screen through which the aggregate dried in the dryer is classified; a storage device in which aggregates classified by the screen are stored by size; and a meter in which the aggregate and the raw material are respectively measured and put into a mixer; It is characterized in that it is further included.

The present invention provides a method for removing harmful gases using an asphalt concrete manufacturing apparatus for removing harmful gases using plasma and thermal decomposition, comprising: an aggregate drying step in which the aggregate is dried in a dryer by heat introduced through a burner; A mixing step in which the dried aggregate and the raw material are introduced into the mixer, and are mixed to produce asphalt; a shipping step in which the asphalt concrete is loaded onto the vehicle introduced into the hood; a dust and noxious gas suction step in which the dust and noxious gas generated in the mixing step and the shipping step are sucked by a blower; Plasma decomposition step in which the dust and noxious gas sucked by the blower are transferred to a decomposition device and the harmful gas is first decomposed by plasma; and a thermal decomposition step in which the primary decomposition-treated dust and harmful gas are transferred to a burner and the harmful gas is decomposed by heat of 800° C. or higher; characterized in that it is included.

In addition, the harmful gas removal method using the asphalt concrete manufacturing apparatus for removing the harmful gas using plasma and thermal decomposition of the present invention is characterized in that it further includes a dust collection step of collecting dust from the purified air introduced into the dust collector.

Ascon manufacturing apparatus for removing harmful gas using plasma and thermal decomposition according to the present invention and a method for removing harmful gas using the same, after inhaling dust and harmful gas generated in the asphalt concrete manufacturing process, plasma and pyrolysis are sequentially performed to remove dust and It has the effect of preventing air pollution by not emitting harmful gases into the atmosphere.

In particular, the present invention relates to air pollutants such as sulfur oxides and nitrogen oxides, benzo[a]pyrene, acrylic acrylonitrile, 1,2-dichloroethane, chloroform, styrene, tetrachlorethylene, ethylbenzene, carbon tetrachloride, etc. It is possible to prevent environmental pollution in advance by removing specific harmful gases and to more efficiently remove odors contained in harmful gases.

In addition, the present invention does not install a separate burner during pyrolysis of harmful gases, and uses a burner of a dryer to prevent fuel consumption and to efficiently use heat energy without wasting heat energy, which is economically excellent.

Furthermore, the present invention prevents air pollution by blocking the discharge of dust, odors, and harmful gases generated during the process of placing asphalt on a vehicle by using an enveloping hood and an air curtain, and the odor is not exhausted into the atmosphere. This has the effect of resolving complaints caused by bad odors.

1 is a view for explaining an asphalt concrete manufacturing apparatus for removing harmful gases using plasma and thermal decomposition according to an embodiment of the present invention.
FIG. 2 is a perspective view illustrating the hood shown in FIG. 1 .
3 is a flowchart illustrating a method for removing harmful gases using an asphalt concrete manufacturing apparatus for removing harmful gases using plasma and thermal decomposition shown in FIG. 1 .
4 is a view for explaining an asphalt concrete manufacturing apparatus for removing harmful gases using plasma and thermal decomposition according to another embodiment of the present invention.
5 is a perspective view for explaining a hood according to another embodiment of the present invention.
6 is a view for explaining an asphalt concrete manufacturing apparatus for removing harmful gases using plasma and thermal decomposition according to another embodiment of the present invention.
<Explanation of code>
100: burner
150: aggregate supply device 151: aggregate transport device
200: dryer
250: screen
251: storage device
252: meter
300: mixer
400: hood
410: housing
411: inlet 412: exhaust port
413: bottom portion 414: inclined portion
420: doorway
421: curtain 422: air curtain
500: disintegrator
600: dust collector
10, 11: Blower 15: Common pipe
20: stone dust feeder 30: asphalt feeder
40: detector
45: valve
50: control unit

Hereinafter, the present invention will be described in detail through examples.

Objects, features, and advantages of the present invention will be readily understood through the following examples.

The present invention is not limited to the embodiments disclosed herein, and may be embodied in other forms. The embodiments disclosed herein are provided so that the spirit of the present invention can be sufficiently conveyed to those of ordinary skill in the technical field to which the present invention belongs, and all transformations included in the technical spirit and scope of the present invention , should be understood to include equivalents or substitutes.

Therefore, the present invention should not be limited by the following embodiments, and it should be understood that all transformations included in the technical spirit and scope of the present invention are included. That is, those of ordinary skill in the art to which the present invention pertains can variously modify or modify the present invention by adding, changing, deleting, or adding components within the scope that does not depart from the spirit of the present invention described in the claims. It will be possible to change, and this will also be said to be included within the scope of the present invention.

Since the present invention is capable of various modifications and various embodiments, specific embodiments are illustrated in the drawings and described in detail. In the drawings, the size of elements or the relative sizes between elements may be exaggerated for a clear understanding of the present invention. In addition, the shape of the element shown in the drawings may be slightly changed due to variations in the manufacturing process or the like.

Therefore, the embodiments disclosed herein should not be limited to the shapes shown in the drawings unless otherwise noted, but should be understood to include some degree of deformation.

On the other hand, various embodiments of the present invention may be combined with any other embodiments unless clearly indicated to the contrary. Any feature indicated as particularly preferred or advantageous may be combined with any other feature and features indicated as preferred or advantageous. That is, the various aspects, features, embodiments or implementations of the present invention may be used alone or in various combinations.

It should be understood that the terminology used herein is for the purpose of describing specific embodiments and is not intended to be limited by the claims, and all technical and scientific terms used in this specification are those of ordinary skill unless otherwise noted. has the same meaning as is commonly understood by a person with The singular expression includes the plural expression unless the context clearly dictates otherwise.

In describing the present invention, if it is determined that a detailed description of a related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

Ascon manufacturing apparatus for removing harmful gases using plasma and thermal decomposition according to an embodiment of the present invention (hereinafter, referred to as 'ascon manufacturing apparatus' for convenience of description) is a burner 100, The dryer 200 , the mixer 300 , the hood 400 , the decomposition device 500 , the dust collector 600 , the blowers 10 and 11 , and the raw material supply device may be included.

The harmful gas causes odor and pollutes the atmosphere. Sulfur oxides, nitrogen oxides, benzo[a]pyrene, acrylonitrile, 1,2 -Dichloroethane, chloroform, styrene, tetrachloroethylene, ethylbenzene, carbon tetrachloride, etc. may be included.

The burner 100 may be respectively connected to the dryer 200 and the decomposition device 500 as shown in FIG. 1 .

More specifically, the burner 100 is connected to the dryer 200 on one side so that the fuel introduced from the outside is combusted and heat may be generated. At this time, the generated heat may be supplied to the dryer 200 .

The fuel is a combustible fuel, and commercially available gas (gas), oil or bio-gas (bio-gas) may be used, but is not particularly limited thereto.

In addition, the burner 100 may be connected to the decomposition device 500 on the other side, so that the dust and harmful gas processed in the primary decomposition may be introduced.

The primary decomposition-treated dust and noxious gas are retained in the burner 100 and come into direct contact with the heat generated during fuel combustion as described above, so that the noxious gas is oxidized and decomposed, and purified air can be discharged.

As the air is purified as the noxious gas is oxidized and decomposed by the burner 100, the odor contained in the noxious gas is not exhausted, so there is an advantage in that it is possible to solve the civil complaints problem due to the odor and to prevent air pollution at the same time.

In addition, the present invention does not install a separate burner during pyrolysis of harmful gases, and by using the burner 100, fuel consumption is prevented, and thermal energy is efficiently used without wasting, which is economically excellent.

The heat is a high temperature, and may be 800° C. or higher.

For example, when the temperature range of the heat is less than 800° C., the oxidative decomposition reaction of the harmful gas does not occur, so that the air cannot be purified and an odor may be generated.

Therefore, it is preferable that the heat has a temperature range of 800 to 1,000° C. in which odors are removed and the air is purified. In addition, it goes without saying that the temperature range of the heat can be adjusted according to the ignition point of the harmful gas component to be oxidized and decomposed by the heat.

The purified air may be discharged to the dryer 200 together with dust and waste heat.

As shown in FIG. 1 , the dryer 200 may be disposed between the burner 100 and the mixer 300 , and may be respectively connected to the burner 100 , the mixer 300 , and the dust collector 600 .

More specifically, the dryer 200 may be connected to the mixer 300 on one side, the burner 100 on the other side, and the dust collector 600 on the upper side.

In addition, in the dryer 200 , the aggregate stored in the aggregate supply device 150 may be introduced into the dryer 200 through the aggregate transport device 151 .

As the aggregate, a new aggregate may be used. The new aggregate has the advantage of less odor and less harmful gas generation than the regenerated aggregate during the production of asphalt concrete.

The aggregate supply device 150 may be classified and stored according to the size of the aggregate particle size.

In addition, the aggregate supply device 150 may discharge the aggregate in the direction of the aggregate transport device 151 located at the lower portion according to the mixing ratio of the aggregate particle size used in the production of asphalt concrete.

The aggregate transport device 151 is a conveyor belt for transporting the aggregate discharged from the aggregate supply device 150 to the dryer 200 , and is located below the aggregate supply device 150 , the aggregate contained in the dryer 200 . It can be connected to the inlet.

In the dryer 200 , aggregate may be introduced through the aggregate conveying device 151 , and the aggregate may be dried by heat introduced through the burner 100 .

At this time, the dryer 200 may be heated to a temperature range of 175° C. or less in order to remove the moisture remaining in the aggregate, and to easily mix the dried aggregate with the raw material in the mixer 300, and preferably It can be heated to a temperature range of 120-175 °C.

In addition, the dryer 200 may rotate the aggregate in the dryer 200 so that the introduced aggregate is uniformly dried.

The aggregate dried by the dryer 200 may be transferred to the mixer 300 connected to one side of the dryer 200 .

In addition, the dryer 200 may introduce the purified air, dust, and waste heat discharged from the burner 100 , and then may be discharged to the dust collector 600 connected to the upper part.

The dust collector 600 may be removed by collecting dust contained in the purified air. The purified air from which dust is collected and removed by the dust collector 600 may be forcibly sucked by the blower 11 disposed at the rear end of the dust collector 600 and discharged into the atmosphere.

Here, the dust collector 600 has a high dust collection efficiency, a relatively small pressure drop is required, and a bag filter capable of stable continuous operation may be used.

As shown in FIG. 1, the mixer 300 is disposed between the dryer 200 and the hood 400, and is connected to the dryer 200 and the hood 400, the raw material supply device, and the common pipe 15, respectively. can

More specifically, the mixer 300 may have a pipe connected to the other side, a dryer 200 and a raw material supply device connected to the upper part, respectively, and a hood 400 connected to the lower part.

At this time, in the mixer 300 , the dried aggregate and raw materials (stone dust and asphalt) may be respectively introduced through the dryer 200 and the raw material supply device respectively connected to the upper part.

Here, the raw material supply device may include a stone powder supply device 20 and an asphalt supply device 30 .

In addition, the mixer 300 includes a stirrer so that the dried aggregate and the raw material are uniformly mixed to produce asphalt.

The asphalt concrete may be discharged in the direction of the hood 400 positioned below the mixer 300 .

The mixer 300 may be connected to the common pipe 15 including the blower 10 in order to prevent the dust and harmful gas generated as the dried aggregate and raw material are mixed from being discharged into the atmosphere.

At this time, the dust and noxious gas generated in the mixer 300 may be forcibly sucked by the blower 10 and transferred to the decomposition device 500 along the common pipe 15 .

As shown in FIG. 1 , the hood 400 may be disposed under the mixer 300 , and may be respectively connected to the mixer 300 and the common pipe 15 .

More specifically, the hood 400 includes a housing 410 that collects dust and noxious gases generated when the asphalt cone discharged from the mixer 300 is placed in a vehicle, and an entrance through which the vehicle can enter or take out. 420 may be included.

As shown in FIG. 2 , the hood 400 may be formed in a hexahedral shape, and all other surfaces except for the doorway 420 formed on one side of the housing 410 may be closed. That is, the hood 400 may be referred to as an enveloping hood.

In addition, the hood 400 may include an inlet 411 and an exhaust port 412 at an upper portion of the housing 410 .

The inlet 411 is formed in the upper center of the housing 410, the asphalt concrete discharged from the mixer 300 may be introduced.

In this case, the inlet 411 may be integrally formed by being connected to a portion from which the asphalt concrete is discharged from the mixer 300 . Accordingly, as the mixer 300 and the hood 400 are integrally formed, there is an advantage that dust and harmful gases generated during the process of transporting asphalt concrete to be placed on a vehicle are not released into the atmosphere.

The exhaust port 412 may be formed on the upper portion of the housing 410 to exhaust dust and harmful gases introduced into the housing 410 through the inlet 411, and may be formed adjacent to the inlet 411. there is.

Also, the exhaust port 412 may be connected to a common pipe 15 including the blower 10 .

At this time, dust and noxious gas generated in the housing 410 may be forcibly sucked by the blower 10 and transferred to the decomposition device 500 along the common pipe 15 .

The doorway 420 may include a curtain 421 and an air curtain 422 in order to prevent dust and harmful gas from scattering and flowing out when the vehicle enters or exits the vehicle.

As shown in FIG. 2 , the curtain 421 may be formed above the doorway 420 to prevent dust and harmful gases from being scattered and released according to the different heights of the vehicles introduced therein.

In addition, the curtain 421 is formed of a soft material, and is formed to have a vertical length of about 1 m, so that it does not interfere with vehicles entering or exiting, and at the same time, it is possible to prevent the outflow of dust and harmful gases to the outside.

As shown in FIG. 2, the air curtain 422 prevents dust and harmful gases from scattering and leaking to the outside as the vehicle cannot enter or take out at a constant speed, and is placed in the vehicle when the vehicle is taken out. In order to prevent the asphalt concrete from being lost by the sprayed air, it may be formed vertically on both sides of the doorway 420 .

As shown in FIG. 2 , the air curtain 422 is formed on both sides of the entrance 420 , so that air may be horizontally sprayed at a high pressure. That is, the high-pressure air sprayed in the horizontal direction may be sprayed in the central direction of the entrance 420 and collected, and then may be moved in the inner direction of the housing 410 .

The air moving in the inner direction of the housing 410 forms an air barrier at the entrance 420, so that dust and harmful gases generated in the housing 410 do not scatter and flow out, and are sprayed from the vehicle in which asphalt concrete is placed. There is an advantage that the asphalt concrete is not lost by the air becoming it.

In addition, the air moving in the inner direction of the housing 410 moves in the direction of the exhaust port 412 formed in the housing 410 so that dust and harmful gases generated in the housing 410 move in the direction of the dust and harmful gases inside the housing 410 . It has the advantage that it does not remain.

The blower is a device that sucks air and forcibly exhausts it, and may be divided into a blower 10 and a blower 11 in the present invention.

As shown in FIG. 1 , the blower 10 may be included in a common pipe 15 positioned between the mixer 300 and the hood 400 , and the decomposition device 500 . At this time, the blower 10 may forcibly suck in the dust and noxious gas generated from the mixer 300 and the hood 400 and forcibly exhaust it in the direction of the decomposition device 500 .

The blower 11 may be disposed at the rear end of the dust collector 600 to be described later to forcibly suck in the purified air from which dust is collected and removed in the dust collector 600 and then be discharged into the atmosphere.

As shown in FIG. 1 , the decomposition device 500 introduces dust and harmful gases that are forcibly sucked from the mixer 300 and the hood 400 by the blower 10 included in the common pipe 15 . can be

By applying a high voltage to the gas containing the dust and noxious gas remaining in the decomposition device 500, the above-described noxious gas may be first decomposed using corona discharge, that is, plasma.

In addition, the decomposition device 500 is capable of decomposition and ionization of harmful gases by corona discharge, direct oxidation by electrons, and indirect oxidation by ozone (O ₃ ) and hydroxyl radicals (OH ^- ) generated in plasma. can be performed simultaneously.

In addition, the decomposition device 500 is connected to the burner 100 as described above, so that the dust and harmful gases that have been treated for the primary decomposition may be discharged in the direction of the burner 100 .

As shown in FIG. 3, the method for removing harmful gas using the asphalt concrete manufacturing apparatus includes an aggregate drying step (S100), a mixing step (S200), a shipping step (S300), a dust and harmful gas suction step (S400), plasma decomposition Step S500, thermal decomposition step S600, and dust collection step S700 may be sequentially performed.

In the aggregate drying step (S100), the aggregate included in the dryer 200 may be dried by the heat introduced through the burner 100 .

Next, in the mixing step (S200), the aggregate dried in the dryer 200 and the raw material discharged from the raw material supply device are respectively introduced into the mixer 300 and mixed to produce asphalt concrete.

Next, in the shipping step ( S300 ), the asphalt concrete generated in the mixer 300 may be discharged in the direction of the hood 400 connected to the lower part of the mixer 300 . At this time, since the vehicle is drawn into the hood 400 , the asphalt concrete may be placed on the vehicle.

Next, in the dust and noxious gas suction step (S400), the dust and noxious gas generated in the mixing step (S200) and the shipping step (S300) are forcibly sucked by the blower 10, and the common pipe 15 described above ) can be transported along

Next, in the plasma decomposition step (S500), the dust and harmful gases forcedly sucked by the blower 10 are transferred to the decomposing device 500 described above along the common pipe 15, and using the plasma, the above described Harmful gases can be treated by primary decomposition.

Next, in the thermal decomposition step (S600), the primary decomposition-treated dust and harmful gas in the plasma decomposition step (S500) are transferred to the burner 100, and as the harmful gas is oxidized and decomposed by heat of 800° C. or higher, air can be purified.

Next, in the dust collecting step (S700), the purified air and dust generated in the thermal decomposition step (S600) are sequentially moved to the dryer 200 described above and the dust collector 600 connected to the upper part of the dryer 200. can

At this time, the dust contained in the purified air is removed from the dust collector 600, and the purified air from which the dust has been removed by the blower 11 disposed at the rear end of the dust collector 600 is forcibly sucked and discharged into the atmosphere. there is.

Accordingly, the present invention is a plasma decomposition step (S500) and thermal decomposition step (S600) by forcibly sucking the dust and harmful gases generated in the mixing step (S200) and the shipping step (S300) of the asphalt concrete manufacturing process with the blower (10) By sequentially performing these steps, dust and harmful gases are not discharged into the atmosphere, thereby preventing air pollution and solving complaints caused by odors.

Ascon manufacturing apparatus according to another embodiment of the present invention, the same points as compared to the previous embodiment will be omitted, and will be mainly described with different points.

The asphalt concrete manufacturing apparatus may further include a screen 250, a storage device 251, and a meter 252 in the asphalt concrete manufacturing apparatus described above, as shown in FIG.

As the screen 250 is further included, the dryer 200 described above may be connected to the screen 250 . Accordingly, in the screen 250 , the aggregate dried in the dryer 200 is introduced and the aggregate dried by vibration may be classified according to the particle size.

In addition, in order to transport the dried aggregate to the screen 250 , a bucket elevator may be included between the dryer 200 and the screen 250 .

A storage device 251 may be formed under the screen 250 .

Since the storage device 251 includes a partition wall therein, the aggregate classified by the screen 250 described above can be stored according to particle size and size.

A meter 252 may be formed under the storage device 251 .

The meter 252 is connected to the stone powder supply device 20 and the asphalt supply device 30 described above to measure aggregate, stone powder, and asphalt stored in the storage device 251, respectively, and the mixer 300 described above. can be put into

A mixer 300 may be formed under the meter 252 .

In the asphalt concrete manufacturing apparatus, the screen 250, the storage device 251, the meter 252, the mixer 300, and the hood 400 may be integrally formed. Accordingly, dust and harmful gases generated when asphalt concrete is manufactured and placed in a vehicle are not released into the atmosphere, thereby solving the problem of civil complaints due to odor.

The method for removing harmful gas using the asphalt concrete manufacturing apparatus may be performed in the same manner as in the previous embodiment except for the above-described mixing step (S200).

In the mixing step (S200), the dried aggregate is classified according to the particle size by the screen 250, the classified aggregate is stored in the storage device 251, and the aggregate, stone dust and asphalt stored by the meter 252 are Each is metered and put into the mixer 300 , and the aggregate, stone dust, and asphalt are mixed in the mixer 300 to produce asphalt concrete.

In the hood 400 according to another embodiment of the present invention, the same points as compared to the previous embodiment will be omitted, and different points will be mainly described.

As shown in FIG. 5 , the hood 400 includes a housing 410 including the inlet 411 and the exhaust port 412 described above, and an entrance 420 including a curtain 421 and an air curtain 422 . ) is included, and a bottom portion 413 and an inclined portion 414 may be further included.

As shown in FIG. 5 , the bottom part 413 may be formed under the housing 410 .

Dust generated in the housing 410 is heavier than air, and thus cannot float in the air, and sinks to the bottom inside the housing 410 .

At this time, when the vehicle entered or taken out of the housing 410 moves, the dust that has settled on the floor inside the housing 410 is taken out by the wheels of the vehicle and floats again in the housing 410 at the same time. By being discharged to the outside, air pollution may be generated.

Accordingly, a suction fan may be included in the bottom part 413 in order to remove the dust that settles on the inner bottom of the housing 410 without being discharged to the outside.

The suction fan may be connected to the above-described common pipe 15 or a separate pipe.

For example, when the suction fan is connected to the common pipe 15, it forcibly sucks the dust that has settled on the bottom of the housing 410 and transports it to the decomposition device 500 along the common pipe 15, as described above. Dust may be treated in the same manner as the decomposing device 500 .

The separate pipe may be connected to any one of the dryer 200 , the meter 252 , or a separate collection device.

For example, when the suction fan is connected to a separate pipe, after forcibly sucking dust settled on the bottom of the housing 410, the dryer 200, the meter 252, or a separate collection device is followed along the separate pipe. It can be transferred to any one selected from among.

For example, when a separate pipe is connected to the dryer 200 , the dust may be transported and removed along the dust collector 600 described above.

For example, when a separate pipe is connected to the meter 252, the dust may be reused when it is introduced into the mixer 300 described above to manufacture asphalt.

For example, when a separate pipe is connected to a separate collecting device, the dust may be collected and stored in the separate collecting device and then reused or discarded during asphalt concrete manufacturing.

In addition, the suction fan may include a cover on the top.

The cover may be formed on the upper portion of the suction fan in order to prevent the asphalt that has fallen to the suction fan from being introduced into the suction fan even if it partially falls to the inner floor of the housing 410 while the asphalt concrete is placed in the vehicle in the housing 410 .

In addition, the cover may have a grating shape or a plurality of suction holes formed therein to suck the dust that has settled on the bottom of the housing 410 through the suction fan.

As shown in FIG. 5 , as the bottom part 413 is formed in the lower part of the housing 410 , a chin is formed in the lower part of the housing 410 . The jaw may be damaged due to scratching of the lower part of the vehicle that enters or exits the housing 410 .

Accordingly, as shown in FIG. 5 , the inclined portion 414 is formed on the other side of the bottom portion 413 to prevent damage to the lower part of the vehicle due to scratching by the chin.

Furthermore, in order to prevent overheating, the suction fan may be automatically controlled according to whether a vehicle weight applied to the floor 413 is sensed.

For example, when a vehicle enters the housing 410 , the weight of the vehicle is sensed in the floor 413 . Accordingly, the suction fan may be automatically operated.

For example, when the vehicle is taken out of the housing 410 , the weight of the vehicle is not sensed in the floor 413 . Accordingly, the suction fan may be automatically stopped.

At this time, in order to prevent dust from re-floating by the wheels while the vehicle is being carried out, the suction fan completely exits the vehicle in the housing 410, and the weight of the vehicle reaches 0 on the floor 413. Even if convergence is not detected, the suction fan may be automatically stopped after running for a certain period of time (approximately 1 to 3 minutes).

Ascon manufacturing apparatus according to another embodiment of the present invention, the same points compared to the previous embodiment will be omitted, and will be mainly described with different points.

As shown in FIG. 6 , the asphalt concrete manufacturing apparatus may further include a detector 40 , a valve 45 and a control unit 50 in the asphalt concrete manufacturing apparatus described above.

As shown in FIG. 6 , the detector 40 may be formed between the dryer 200 and the dust collector 600 . At this time, the detector 40 may measure whether harmful gas remains in the purified air moving from the dryer 200 to the dust collector 600 .

As shown in FIG. 6 , the valve 45 is formed between the dryer 200 and the dust collector 600 , is installed above the detector 40 , and may be connected to the burner 100 described above.

The control unit 50 is an externally installed control device, and may be respectively connected to the detector 40 and the valve 45 using a wired or wireless network.

In addition, the control unit 50 may automatically control the valve 45 connected by the wired or wireless network.

More specifically, the detector 40 is sulfur oxide, nitrogen oxide, benzo (a) pyrene, acrylonitrile, 1,2-dichloro in the purified air moving from the dryer 200 to the dust collector 600 . It is possible to measure whether any one or more harmful gases of ethane, chloroform, styrene, tetrachloroethylene, ethylbenzene, or carbon tetrachloride remain.

In addition, the detector 40 may generate the harmful gas residual measurement information and transmit it to the controller 50 connected by a wired or wireless network.

The harmful gas residual measurement information may be generated as the noxious gas remains or does not remain in the air that has passed through the detector 40 .

In this case, the control unit 50 may receive the harmful gas residual measurement information transmitted from the detector 40 , and based on this, control information of the valve 45 may be generated. The control information may be transmitted to the connected valve 45 by a wired or wireless network.

In addition, the control information can be generated by blocking the air passing through the detector 40 from moving in the dust collector 600 direction or blocking the air passing through the detector 40 from moving in the burner 100 direction. there is.

For example, when it is generated as the control information to block the movement of air that has passed through the detector 40 in the direction of the dust collector 600, the control unit 50 indicates that the harmful gas remains as the measurement information of whether the harmful gas remains. means received.

For example, when it is generated as the control information to block the movement of air that has passed through the detector 40 in the direction of the burner 100 , no harmful gas remains as the harmful gas residual measurement information in the control unit 50 . This means that it has been received.

The valve 45 receives the control information transmitted from the control unit 50 , and based on this, the movement direction of the air discharged from the dryer 200 and passed through the chorus detector 40 may be controlled.

For example, when it is received by the valve 45 that the air passing through the detector 40 is blocked from moving in the dust collector 600 direction as the control information, the air is blocked from moving in the dust collector 600 direction. At the same time, the movement direction of the air may be switched to move in the direction of the burner 100 .

The valve 45 can prevent air pollution by switching the direction of movement of the air toward the burner 100 as described above, thereby preventing the harmful gas remaining in the air passing through the detector 40 from being released into the atmosphere. there is.

In addition, pyrolysis may be additionally performed by reintroducing the air in which the harmful gas remains into the burner 100 .

For example, when the valve 45 receives the control information to block the movement of the air passing through the detector 40 in the direction of the burner 100 , it blocks the movement of the air in the direction of the burner 100 . At the same time, the movement direction of the air may be switched to move in the direction of the dust collector 600 .

In the valve 45, the movement direction of the air is switched to the dust collector 600 direction as above, so that no harmful gas remains in the air that has passed through the detector 40, so that the air passes through the dust collector 600 and is discharged to the atmosphere. can be

Accordingly, it is possible to prevent the re-introduction of air in which noxious gas remains to the burner 100 , thereby preventing fuel wastage due to the use of the burner 100 .

The present invention is an asphalt concrete manufacturing apparatus for removing harmful gases using plasma and thermal decomposition and a method for removing harmful gases using the same. It is an industrially applicable invention that prevents air pollution because dust and harmful gases are not emitted into the atmosphere by sequentially performing it.

Claims (5)

A burner that is connected to the dryer to apply heat to the dryer using fuel, and is connected to a decomposition device to introduce primary decomposition-treated dust and harmful gases, but decomposes harmful gases by heat of 800°C or higher;
a dryer in which aggregate is introduced, the aggregate is dried by heat introduced through a burner;
a mixer in which the dryer and the raw material supply device are connected, the dried aggregate and the raw material are introduced, and are mixed to produce asphalt;
a hood into which a vehicle for shipping the asphalt concrete is introduced, dust and harmful gases are collected;
a blower formed in a pipe positioned between the mixer and the hood and the decomposing device, and sucking dust and noxious gases generated from the mixer and the hood and transferring the blower to the decomposing device; and
A decomposition device for primary decomposition treatment of the introduced harmful gas using plasma;
Ascon manufacturing apparatus for removing harmful gases using plasma and thermal decomposition, characterized in that it is included. The method according to claim 1,
hood,
A housing in which an entrance is formed to allow vehicle entry or exit;
Ascon manufacturing for removing harmful gases using plasma and thermal decomposition, characterized in that one side of the housing includes an inlet for introducing asphalt concrete discharged from the mixer and an exhaust port through which dust and harmful gases introduced through the inlet are sucked. Device. 3. The method according to claim 2,
the entrance,
Ascon manufacturing apparatus for removing harmful gases using plasma and thermal decomposition, characterized in that any one or more of a curtain or an air curtain is further included in order to prevent dust and harmful gases from leaking out when entering or taking out a vehicle. The method according to claim 1,
Ascon manufacturing device that removes harmful gas using plasma and thermal decomposition,
Ascon manufacturing apparatus for removing harmful gases using plasma and thermal decomposition, characterized in that it is connected to the dryer and further includes a dust collector for collecting dust. The method according to claim 1,
Ascon manufacturing device that removes harmful gas using plasma and thermal decomposition,
a screen through which aggregate dried in the dryer is sorted;
a storage device in which aggregates classified by the screen are stored by size; and
a meter in which the aggregate and the raw material are respectively metered and put into a mixer;
Ascon manufacturing apparatus for removing harmful gases using plasma and thermal decomposition, characterized in that it further comprises.

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