KR101924972B1 - Carbonization system of non-biodegradable waste using heat storage medium - Google Patents

Abstract

The present invention relates to a carbonization system of non-degradable waste using a heat storage medium, comprising a heating unit for heating a waste storage unit and a heat storage medium, a mixing unit for mixing the stored waste and the heated heat storage medium, a carbonizing unit for carbonizing the waste mixed in the mixing unit, a sorting unit for sorting the carbonized mixed waste into the heat storage medium and carbonized waste and a carbonized waste storage unit for storing the sorted carbonized waste. Therefore, it is possible for the disposal of waste in a short time by using a heat storage medium and the heat storage medium can be recycled.

Description

[0001] The present invention relates to a carbonization system of non-biodegradable waste using heat storage medium,

The present invention relates to a non-degradable waste carbonization system using a heat storage medium, more specifically, it is possible to treat wastes in a short time using a heat storage medium, reduce energy cost for the heat recovery medium and reuse the heat storage medium to improve convenience and economy To a refractory waste carbonization system.

In general, sludge wastes such as food waste, livestock manure, and sewage sludge have been treated mainly as marine dumping, landfilling, partial incineration, microbial gasification, and composting.

However, in recent years, as the dumping of the sea has been limited and the landfill area becomes saturated, the treatment of the sludge and the waste becomes difficult. As a countermeasure for the disposal of the sludge and the waste, the drying device, the cooling tower, A sludge drying system has been proposed.

In the case of such a sludge drying system, since the high performance and energy of the drying apparatus are required due to the high moisture contained in the sludge, it is economically burdensome due to a large maintenance cost, and the sludge is dried on the outside of the sludge .

In addition, there is a problem that secondary environmental pollution such as treatment of dried material and discharge of cooling water is caused in the drying process.

As another treatment method of sludge, composting through aerobic fermentation is limited, and most of the waste except for organic fertilizer using a part of laying hens farm is urgently disposed to treat waste, and it is recognized as an aversion facility due to unsanitary facilities There are frequent complaints from residents. Particularly, due to problems such as fermentation time of more than 10 days, change of fermentation efficiency by season, limitation of water content to be processed, odor and harmful gas, demand for compost throughout the year and supply imbalance, .

1. Korean Registered Patent No. 10-1176369 (registered on August 17, 2012)

The present invention relates to a method and apparatus for recovering carbonaceous materials from a carbonaceous material having a high fixed carbon ratio by using a heat storage medium prepared by a special material sensitive to a thermal reaction and treating the waste material at a high temperature in a short time, System.

It is another object of the present invention to provide a non-degradable waste carbonization system capable of reducing the time of carbonization of waste by mixing the heated storage medium with waste and removing moisture in the waste by a certain amount or less through evaporation and absorption reaction .

The present invention also provides a non-degradable waste carbonization system using a heat storage medium capable of reducing the cost of the heat storage medium by reusing the heat storage medium through the process of selecting the carbonized mixed waste after carbonization.

The objects of the embodiments of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description .

According to an embodiment of the present invention, there is provided a waste incinerator comprising: a waste storage for storing waste; a heating unit for heating the storage heat medium; a mixing unit for mixing the stored waste and the heated storage medium; Decomposing waste carbonization system using a storage medium including a carbonization unit for carbonizing carbonized waste, a sorting unit for sorting the carbonized mixed waste into the storage medium and carbonized waste, and a carbonized waste storage unit for storing the selected carbonized waste, .

According to an embodiment of the present invention, the heating unit includes a heating unit body having an inlet port through which the heat storage medium flows in an upper portion and a first outlet through which the heat storage medium heated in the lower portion is discharged, The present invention can provide a non-degradable waste carbonization system using a regenerant medium including a gas discharge pipe passing through the inside and the outside of the body to discharge a combustion gas and a burner for heating the heat storage medium in the heating unit body.

According to an embodiment of the present invention, the mixing unit includes a mixing body having a hopper through which the waste and the heated storage medium are introduced, and a second outlet through which the mixed waste is discharged, And a stirring vane for mixing the waste and the heat storage medium in accordance with the rotation of the rotary shaft, wherein a plurality of the stirring vanes are provided on the outer periphery of the rotary shaft, It is possible to provide a refractory waste carbonization system using a heat storage medium.

In addition, according to the embodiment of the present invention, the carbonized portion may include a conveyor for conveying the mixed waste introduced from the mixing portion, a plurality of conveyance containers provided on the conveyor for receiving the mixed waste, And a magnetron disposed on the line for carbonizing the mixed waste contained in the plurality of transfer vessels. The present invention can provide a non-degradable waste carbonization system using a heat storage medium.

According to an embodiment of the present invention, the sorting unit includes a plurality of sorting holes passing through the upper and lower portions, the plurality of sorting holes being formed in the sorting unit, And a belt conveyor provided at the lower portion of the perforated plate. The present invention can provide a non-degradable waste carbonization system using a heat storage medium.

In addition, according to the embodiment of the present invention, the sorting unit can provide a non-degradable waste carbonization system using the heat storage medium that recycles the selected heat storage medium to the heating unit through the belt conveyor.

According to an embodiment of the present invention, the heat storage medium can provide a refractory waste carbonization system using a heat storage medium coated with an inorganic material on a porous carbon material.

The non-degradable waste carbonization system using the heat storage medium according to the present invention can heat various wastes to a high temperature in a short time by using a heat storage medium. Therefore, carbonization time is shortened, and the facility can be operated economically and efficiently in various sludge treatment.

In addition, the heat storage medium is heated to a certain temperature level during the process and mixed with the waste, thereby evaporating or absorbing moisture in the waste, thereby increasing the heat transfer efficiency.

Also, the cost for entering the heat storage medium can be reduced by reusing the heat storage medium through selection after carbonization.

1 is a block diagram of a refractory waste carbonization system using a heat storage medium according to an embodiment of the present invention,
2 is a view illustrating a heating unit of a refractory waste carbonization system using a heat storage medium according to an embodiment of the present invention,
FIG. 3 is a view illustrating a mixing unit of a refractory waste carbonization system using a heat storage medium according to an embodiment of the present invention,
4 is a view illustrating a carbonization part of a refractory waste carbonization system using a heat storage medium according to an embodiment of the present invention,
5 is a view illustrating a sorting unit of a refractory waste carbonization system using a heat storage medium according to an embodiment of the present invention,
FIG. 6 is a flowchart illustrating a process of carbonizing and treating refractory wastes using a heat storage medium according to an embodiment of the present invention.

Advantages and features of embodiments of the present invention and methods of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions in the embodiments of the present invention, which may vary depending on the intention of the user, the intention or the custom of the operator. Therefore, the definition should be based on the contents throughout this specification.

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

FIG. 1 is a block diagram of a non-degradable waste carbonization system using a heat storage medium according to an embodiment of the present invention. FIG. 2 is a cross-sectional view illustrating a heating unit of a refractory waste carbonization system using a heat storage medium according to an embodiment of the present invention FIG. 3 is a view illustrating a mixing portion of a non-degradable waste carbonization system using a heat storage medium according to an embodiment of the present invention. FIG. 4 is a cross- FIG. 5 is a view illustrating a selection unit of a refractory waste carbonization system using a heat storage medium according to an embodiment of the present invention. Referring to FIG.

1 to 5, a refractory waste carbonization system using a heat storage medium includes a waste storage unit 100, a heating unit 200, a mixing unit 300, a carbonization unit 400, a sorting unit 500, A carbonized waste storage unit 600, and the like.

The waste storage unit 100 may store the waste in the internal storage space when the waste is supplied from the outside, and then discharge the waste to the mixing unit 300, if necessary. The waste storage part 100 may be formed of stainless steel in the form of a cylinder. The reason why stainless steel is used is to prevent corrosion due to moisture contained in the refractory waste. In addition to the cylindrical shape, A square barrel shape, and the like.

The heating unit 200 receives the heat storage medium from the outside and heats the heating unit 200. The heating unit 200 includes an inlet 211 through which the heat storage medium flows into the upper portion and a first outlet 212 through which the heated heat storage medium is discharged, And a burner 230 having a gas exhaust pipe 220 through which the combustion gas is exhausted through the inside and the outside of the heating unit body 210 and which heats the inside of the heating unit body 210 have.

In the heating unit 200, the internal temperature of the heating unit 200 may be heated to maintain the internal temperature of 450 ° C to 1400 ° C depending on the characteristics of the waste, so that the heat storage medium may have thermal energy. Here, the first outlet 212 may be provided with a first valve 212a to control the discharge amount and discharge time of the heated storage medium.

Although the burner 230 is used as the heating means in the embodiment of the present invention as described above, various heating means such as a microwave or an electric heater can be used.

The mixing unit 300 can mix the waste stored in the waste storage unit 100 and the heat storage medium heated in the heating unit 200. The conveyance can be used to transfer the waste and the heat storage medium, The heat energy can be transferred to the time range of 20 to 30 seconds because the heat energy is reduced due to the difference between the outside and the temperature during transportation.

The mixing unit 300 includes a mixing body 310 having a hopper 311 through which waste and a heat storage medium are introduced and a second outlet 312 through which mixed waste is mixed at a lower portion thereof, A rotating shaft 330 is formed inside the mixing body 310 along a central axis and the rotating shaft 330 is rotated through a motor 320 connected to the rotating shaft 330. A rotating shaft 330 A plurality of stirring vanes 340 may be horizontally extended.

Here, the hopper 311 can be introduced into the mixing body 310 through the bottom outlet connected to the mixing body 310 after the waste and the storage medium are introduced through the top inlet, and the second outlet 312 May include a second valve 312a to control the discharge amount and the discharge time.

The motor 320 may be provided at an upper end of the rotating shaft 330 and the rotating shaft 330 may be provided such that the interval between the lower end of the rotating shaft 330 and the bottom surface of the mixing body 310 is 1 to 2 cm The shape can be variously formed by a cylindrical shape, a square column shape, or the like.

A plurality of stirring blades 340 may be provided on the outer circumference of the rotating shaft 330 and may be formed to a lower portion of the rotating shaft 330 so that the waste and the heat storage medium may be mixed to the lower portion of the mixing body 310. Here, the heat storage medium and the waste can be introduced and mixed with 80 to 120 parts by weight of waste based on 100 parts by weight of the heat storage medium.

The average moisture content in the waste can be maintained at 30 to 40% due to the thermal energy of the heat storage medium when the storage medium and the waste are mixed. The maintenance of such moisture content can be achieved by a high viscosity section so that a sticky zone does not occur.

'모양인 이송용기(420)가 하기 서술될 마그네트론(440)이 설치된 터널의 길이 보다 짧은 길이로 복수개 구비되어 있고, 혼합폐기물은 이송용기(420)의 내부에 수용되어 이송될 수 있다.The carbonized portion 400 can carbonize the mixed waste mixed in the mixing portion 300. The mixed waste discharged from the second outlet 312 of the mixing portion 300 is installed at a lower portion of the second outlet 312 Is introduced into the one end 410a of the conveyor 410 and is conveyed to the other end 410b and can be carbonized using microwaves. Here, the mixed waste conveying device comprises a conveyor 410,

A plurality of the transfer containers 420 having a length shorter than the length of the tunnel in which the magnetron 440 to be described below is installed and the mixed waste can be received and transported inside the transfer container 420.

When the transfer container 420 is moved to the inside of the tunnel, the entrance 430 of the tunnel is closed, the inside and outside of the tunnel are closed, and then the magnetron The microwave generated by the microwave generator 440 can be used for heating. At this time, the storage medium absorbs the microwaves, and the average temperature of the mixture becomes 1400 to 1600 ° C., so that the internal oxygen becomes insufficient, and oxygen is deficient in the thermal energy, combustion medium and oxygen which are combustion conditions, have.

The sorting unit 500 is installed under the other end 410b of the conveyor 410 so that carbonized mixed waste can be introduced. Such mixed waste may flow into the one end 510a of the perforated plate 510 and be sorted into a heat storage medium and a carbonized waste. The sorting unit 500 may include a perforated plate 510, a vibrator 520 mounted on the perforated plate 510, a belt conveyor 530 provided under the perforated plate 510, and the like.

The perforation plate 510 is provided in the form of a rectangular plate, and a plurality of screening holes 511 having a diameter of 3 to 5 mm may be formed through upper and lower portions of the plate. In order to smoothly move the carbonized waste toward the carbonized waste storage part 600 while the storage medium is being selected at the time of installation, the perforated plate 510 has an angle between an extension line of the perforated plate 510 and a horizontal extension line of the conveyor 410 May be inclined to be 5 to 10 DEG.

The vibrator 520 may be mounted on the perforated plate 510 to generate vibration so that the heat storage medium and the carbonized waste can be selected.

Since the waste material is carbonized and solidified, the carbonized waste passing over the perforated plate 510 can not pass through the sorting hole 511, and only the powdery heat storage medium passes through the sorting hole 511 The heat accumulating medium can be reintroduced into the inlet 211 of the heating unit 200 through the belt conveyor 530. The belt conveyor 530 is disposed at the lower portion of the perforated plate 510.

The carbonized waste storage unit 600 may be disposed on an extension of the other end 510b of the perforated plate 510 to store the selected carbonized waste and then discharge the carbonized waste to the outside if necessary. And the like.

Since the carbonized waste has a calorific value of 2800 to 3500 kcal / kg with less than 5% moisture, it can be used as fuel, and the heat storage medium can be coated with inorganic material in the porous carbonaceous material, , The specific surface area can be increased and the thermal efficiency can be increased.

FIG. 6 is a flowchart illustrating a process of carbonizing and treating refractory wastes using a heat storage medium according to an embodiment of the present invention. Referring to FIG.

Referring to FIG. 6, the waste and heated storage medium may be transferred to and mixed with the mixing portion 300 (Step S602).

The waste stored in the waste storage unit 100 and the heat storage medium heated by the burner 230 in the heating unit 200 are supplied to the hopper 311 provided on the upper part of the mixing body 310 through the conveyor Can be transferred and flowed. In addition, the introduced waste and heated heat storage medium can be mixed by a stirring blade 340 provided inside the mixing body 310.

The mixed waste mixed through the mixing unit 300 may be carbonized through the carbonization unit 400 (step S604).

The mixed waste discharged from the second outlet 312 of the mixing unit 300 flows into one end 410a of the conveyor 410 installed at the lower portion of the second outlet 312 and is conveyed to the conveyor 410 The transport container 420 accommodated in the plurality of transport containers 420 is transported to the other end portion 410b and the transportation container 420 is moved into the tunnel provided at the intermediate portion of the conveyor 410, Closing the inside and outside of the tunnel, and then heating the microwave using the microwaves generated in the magnetron 440 inside the tunnel, the mixed waste can be carbonized.

Next, the mixed waste carbonized through the carbonization unit 400 can be sorted through the sorting unit 500 into a heat storage medium and a carbonized waste (step S606).

The carbonized mixed waste flows from the other end 410b of the conveyor 410 to the one end 510a of the perforated plate 510. Since the carbonized waste is a lump, Only the heat storage medium in the form of powder can pass through the screening hole 511 and fall on the belt conveyor 530 located under the perforated plate 510 without being able to pass through the screening hole 511.

Then, the carbonized waste selected through the sorting unit 500 may be stored in the carbonated waste storage unit 600 (step S608).

The carbonized waste which has not passed through the sorting hole 511 flows into and is stored in the carbonated waste storage unit 600 installed on the extension line of the other end 510b of the perforated plate 510, have.

On the other hand, the heat storage medium selected through the sorting unit 500 may be moved to the heating unit 200 and reintroduced if necessary (step S610).

Here, the heat storage medium having passed through the sorting hole 511 can be transported to the inlet 211 of the heating unit 200 through the belt conveyor 530, and can be reintroduced.

Although it has been described above that the step of storing the selected carbonized waste (step S608) and the step of re-introducing the selected storage medium (step S610) are described step by step, the above two steps (steps S608 and S610) Or in reverse order.

In the refractory waste carbonization system using the heat storage medium according to the present invention, the heat storage medium can be used to heat various wastes to a high temperature in a short time. Therefore, the carbonization time can be shortened and the operation of the facility can be economically performed.

In addition, by mixing the waste and the heat storage medium, moisture inside the waste can be removed and the time required for carbonization can be shortened, so that the carbonization can be efficiently performed.

In addition, it is possible to reduce the cost of entering the heat storage medium by recycling the heat storage medium through selection after carbonization.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be readily apparent that such substitutions, modifications, and alterations are possible.

100: waste storage part 200: heating part
210: Heating unit body 211: Inlet
212: first outlet 220: gas outlet pipe
230: burner 300: mixing part
310: mixing body 311: hopper
312: second outlet 320: motor
330: rotating shaft 340: stirring blade
400: carbonized part 410: conveyor
420: transfer container 430: entrance
440: Magnetron 500:
510: perforation plate 511: selection hole
520: Vibrator 530: Belt conveyor
600: carbonized waste storage part

Claims (7)

A waste storage for storing waste,
A heating unit for heating the heat storage medium;
A mixing portion for mixing the stored waste and the heated storage medium,
A carbonization unit for carbonizing the mixed waste mixed in the mixing unit,
A sorting unit for sorting the carbonized mixed waste into the storage medium and the carbonized waste,
And a carbonized waste storage for storing the selected carbonized waste,
The heating unit
A heating unit body having an inlet port through which the heat storage medium flows into the upper portion and a first outlet through which the heat storage medium heated in the lower portion is discharged;
A gas exhaust pipe penetrating the inside and the outside of the heating unit body to exhaust the combustion gas,
And a burner for heating the heat storage medium inside the heating unit body.
delete The method according to claim 1,
The mixing section
A mixed body including a hopper through which the waste and the heated heat storage medium flow into the upper portion and a second outlet through which the mixed waste is discharged,
A rotating shaft formed inside the mixing body along a central axis,
A motor for rotating the rotary shaft,
A plurality of stirring blades provided on an outer periphery of the rotary shaft and adapted to mix the waste and the heat storage medium according to rotation of the rotary shaft,
Wherein the waste water is recovered from the waste water.
The method according to claim 1,
The carbonized portion
A conveyor for conveying the mixed waste introduced from the mixing portion,
A plurality of conveying vessels provided on the conveyor to receive the mixed waste,
A magnetron disposed on the transfer line of the conveyor for carbonizing the mixed waste contained in the plurality of transfer containers;
Wherein the waste water is recovered from the waste water.
The method according to claim 1,
The selector
A perforated plate through which the mixed waste flows from the carbonized portion, a plurality of through holes penetrating the upper and lower portions,
A vibrator mounted on the perforated plate to generate vibration,
A belt conveyor provided below the perforated plate,
Wherein the waste water is recovered from the waste water.
The method according to claim 1,
Wherein the sorting unit uses the heat accumulating medium to recycle the selected heat accumulating medium to the heating unit through the belt conveyor.
The method according to any one of claims 1, 3, 4, 5, and 6,
Wherein the heat storage medium is a non-degradable waste carbonization system using a heat storage medium coated with an inorganic material in a porous carbon material.

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