JPH04122929U - Incineration ash melting processing equipment - Google Patents
Incineration ash melting processing equipmentInfo
- Publication number
- JPH04122929U JPH04122929U JP2949591U JP2949591U JPH04122929U JP H04122929 U JPH04122929 U JP H04122929U JP 2949591 U JP2949591 U JP 2949591U JP 2949591 U JP2949591 U JP 2949591U JP H04122929 U JPH04122929 U JP H04122929U
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- melting
- air
- heat exchanger
- incineration ash
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002844 melting Methods 0.000 title claims abstract description 24
- 230000008018 melting Effects 0.000 title claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 238000007664 blowing Methods 0.000 claims abstract description 7
- 239000000155 melt Substances 0.000 claims abstract description 3
- 239000007789 gas Substances 0.000 claims description 27
- 239000000463 material Substances 0.000 claims 1
- 239000002341 toxic gas Substances 0.000 claims 1
- 238000004880 explosion Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000012768 molten material Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000009692 water atomization Methods 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
(57)【要約】
【構成】 焼却灰4等をアーク加熱により溶解する溶融
炉1において、500℃以上に予熱した空気を炉内に吹
込むことにより炉内で発生した可燃性ガスを燃焼させ
る。また、その排ガス排出路に熱交換器16を設け、該
熱交換器によって上記空気を予熱するようにした。
【効果】 炉内に加熱空気を吹込むことによって炉内温
度を下げることなく炉内の可燃性ガスをより完全に燃焼
させることができる。このため炉内爆発のおそれがなく
なり安全に操業できると共に、熱エネルギーの有効利用
により省エネルギー化が達成されランニングコストが低
減できる。
(57) [Summary] [Structure] In a melting furnace 1 that melts incinerated ash 4 etc. by arc heating, combustible gas generated in the furnace is combusted by blowing air preheated to 500°C or higher into the furnace. . Further, a heat exchanger 16 was provided in the exhaust gas discharge path, and the air was preheated by the heat exchanger. [Effect] By blowing heated air into the furnace, the combustible gas in the furnace can be more completely combusted without lowering the temperature inside the furnace. As a result, there is no risk of explosion within the furnace, allowing safe operation, and effective use of thermal energy results in energy savings and reduced running costs.
Description
【0001】0001
本考案はゴミ焼却灰、スラッジ等を加熱し溶解することにより無害化処理する 焼却灰溶融処理設備に関するものである。 This invention detoxifies garbage incineration ash, sludge, etc. by heating and melting it. This relates to incineration ash melting processing equipment.
【0002】0002
焼却灰をアーク炉等の溶融炉に投入しアーク加熱により該焼却灰を1000℃ 〜1600℃に加熱し溶解する焼却灰溶融処理法は、焼却灰に含まれている有害 物質の拡散を防止し得るものとしてすでに公害防止対策の一翼を担っている。 上記溶融炉には焼却灰溶融時に熱分解によつてH2,CO等の可燃性ガスが発 生するため従来からその爆発を避けるため炉内に空気を吹込んでそのガスを発生 と同時に燃焼させるようにしている。The incinerated ash melting method, which involves putting incinerated ash into a melting furnace such as an arc furnace and heating the incinerated ash to 1000°C to 1600°C and melting it, prevents the diffusion of harmful substances contained in the incinerated ash. As a result, it is already playing a role in pollution prevention measures. In the above-mentioned melting furnace, combustible gases such as H 2 and CO are generated due to thermal decomposition when the incinerated ash is melted, so in order to avoid explosions, air is blown into the furnace and the gases are combusted at the same time as they are generated. I have to.
【0003】0003
ところで、炉内に空気を吹込むと炉内温度が急速に下がり、COの着火温度( 約600℃)を維持できなくなり不完全燃焼による爆発の危険が解消できなかつ たり、或いはその熱量を補うべくアーク加熱用電力の消費が多くなりランニング コストを高くするという問題があった。 By the way, when air is blown into the furnace, the temperature inside the furnace decreases rapidly, and the ignition temperature of CO ( (approximately 600℃) and the danger of explosion due to incomplete combustion cannot be eliminated. Or, in order to compensate for the amount of heat, the consumption of electric power for arc heating increases and the running There was a problem of increasing costs.
【0004】0004
本考案の焼却灰溶融処理設備は上記課題を解決しようとするもので、焼却灰等 をアーク加熱により溶解する溶融炉において、500℃以上に予熱した空気を炉 内に吹込むことにより炉内で発生した可燃性ガスを燃焼させるようにしたことを 第1の特徴とするものである。 また本考案は、焼却灰等をアーク加熱により溶解する溶融炉において、排ガス 排出路に熱交換器を設け、該熱交換器によって予熱した空気を炉内に吹込むこと により炉内で発生した可燃性ガスを燃焼させるようにしたことを第2の特徴とす るものである。 The incinerated ash melting processing equipment of the present invention is intended to solve the above problems. In a melting furnace where metals are melted by arc heating, air preheated to 500°C or higher is heated to The flammable gas generated in the furnace was combusted by blowing it into the furnace. This is the first feature. In addition, the present invention enables exhaust gas to be used in a melting furnace that melts incinerated ash etc. by arc heating. A heat exchanger is installed in the exhaust path, and air preheated by the heat exchanger is blown into the furnace. The second feature is that the flammable gas generated in the furnace is combusted. It is something that
【0005】[0005]
500℃以上の空気を吹込むことで炉内の温度降下を防ぎ可燃性ガスを完全燃 焼させる。 また、炉内に吹込む空気を排ガスとの熱交換により予熱することにより、排ガ スの持つ熱エネルギーを有効に利用できる。 By blowing air at a temperature of 500℃ or higher, the temperature inside the furnace is prevented from dropping and the flammable gas is completely burned out. Let it bake. In addition, by preheating the air blown into the furnace through heat exchange with the exhaust gas, Thermal energy possessed by the gas can be used effectively.
【0006】[0006]
次に本考案の実施例を図面と共に説明する。 図1に示す溶融炉1は、上部より炉内に3本の電極棒2が垂下され、該炉内に はシユート3を通して焼却灰4が投入され、該電極棒2間のアークの熱によって 該焼却灰4を1000℃〜1600℃に加熱して溶融させ炉底に溶融物5を作る もので、該溶融物5は出湯口6より炉外に排出される。7は溶融炉1の天井部に 設けられた排ガス排出口である。 Next, embodiments of the present invention will be described with reference to the drawings. In the melting furnace 1 shown in FIG. 1, three electrode rods 2 are suspended from the top into the furnace. Incineration ash 4 is introduced through the chute 3, and is heated by the arc between the electrode rods 2. The incineration ash 4 is heated to 1000°C to 1600°C to melt it and form a molten material 5 at the bottom of the furnace. The molten material 5 is discharged out of the furnace from a tap 6. 7 is on the ceiling of melting furnace 1 This is an exhaust gas outlet provided.
【0007】 8は溶融炉1の側壁上部周囲複数個所に開設された空気吹込口で、該空気吹込 口8に先端が接続された給気管9にはヒータ18および給気ファン10が設けら れている。このため該給気ファン10により大気中から吸引した空気をヒータ1 8を通すことにより500℃以上に加熱し吹込口8より炉内空間11に吹込む。[0007] Reference numeral 8 denotes air inlets provided at multiple locations around the upper part of the side wall of the melting furnace 1; An air supply pipe 9 whose tip is connected to the port 8 is provided with a heater 18 and an air supply fan 10. It is. Therefore, the air sucked from the atmosphere by the air supply fan 10 is transferred to the heater 1. 8 to heat it to 500° C. or higher and blow it into the furnace space 11 from the blowing port 8 .
【0008】 炉内空間11では焼却灰4を加熱することによって発生した可燃性ガスが吹込 口8から吹込まれた空気と反応して燃焼する。このように500℃以上に予熱し た空気を吹き込むことによって炉内温度は高温度に維持できるため吹き込み空気 量は少なくてもCOを完全燃焼でき、このため炉内の酸素濃度を低い値に抑える ことができ、この結果、電極棒2の酸化消耗も少なくなる。[0008] In the furnace space 11, flammable gas generated by heating the incinerated ash 4 is blown into the furnace space 11. It reacts with the air blown in from the port 8 and burns. Preheat to over 500℃ like this By blowing air into the furnace, the temperature inside the furnace can be maintained at a high temperature. Even if the amount is small, CO can be completely combusted, thus keeping the oxygen concentration in the furnace to a low value. As a result, oxidative consumption of the electrode rod 2 is also reduced.
【0009】 なお、排出口7より排出された排ガスは排ガスファン12により吸引され、ス プレー水噴霧式減温塔13、サイクロン式分離器14、バッグフィルター式じん 器15を通過させることによりその排ガス中のダストはこれらに分離捕集されて 排気のみが大気中に排出される。[0009] Note that the exhaust gas discharged from the exhaust port 7 is sucked by the exhaust gas fan 12 and Play water spray type cooling tower 13, cyclone type separator 14, bag filter type dust The dust in the exhaust gas is separated and collected by passing through the device 15. Only exhaust gas is emitted into the atmosphere.
【0010】 図2に示した焼却灰溶融処理設備は、排ガス排出口7に連なる排ガス排出路に 熱交換器16を設け、図1の実施例のヒータ18に代えて該熱交換器16を通す ことにより予熱された空気を吹込口8より炉内空間11に吹込むようにしたもの である。排ガス排出口7より排出される排ガスの温度は1000℃〜1300℃ にも達するので、この熱交換器16を通すことによって炉内空間11に吹込まれ る空気は少なくとも500℃以上に予熱できる。このためこの実施例では、排ガ スの持つ熱エネルギーを有効利用でき省エネルギー化が可能であると共に、熱交 換器16を通過することによって排ガスの温度を下げ得るので、スプレー水噴霧 式減温塔13等による冷却能力を特に大きくする必要がなくなる。0010 The incinerated ash melting treatment equipment shown in Figure 2 is installed in the exhaust gas exhaust path connected to the exhaust gas outlet 7. A heat exchanger 16 is provided, and the heat exchanger 16 is passed in place of the heater 18 in the embodiment of FIG. Preheated air is blown into the furnace space 11 from the air inlet 8. It is. The temperature of the exhaust gas discharged from the exhaust gas outlet 7 is 1000℃ to 1300℃ It also reaches the temperature, so it is blown into the furnace space 11 by passing through this heat exchanger 16. The air used can be preheated to at least 500°C or higher. Therefore, in this embodiment, the exhaust gas It is possible to save energy by effectively utilizing the thermal energy of the heat exchanger. The spray water atomization can reduce the temperature of the exhaust gas by passing through the exchanger 16. There is no need to particularly increase the cooling capacity of the cooling tower 13 and the like.
【0011】[0011]
このように本考案の焼却灰溶融処理設備は、炉内に予め加熱された空気を吹込 むことによって炉内温度を下げることなく可燃性ガスをより完全に燃焼させるこ とができる。このため炉内爆発のおそれがなくなり安全に操業できると共に、熱 エネルギーの有効利用により省エネルギー化が達成されランニングコストが低減 できるなど有益である。 In this way, the incineration ash melting treatment equipment of this invention blows pre-heated air into the furnace. This allows the combustible gas to be burned more completely without lowering the temperature inside the furnace. I can do that. This eliminates the risk of explosion inside the furnace, allowing safe operation, and Achieving energy savings and reducing running costs through effective use of energy It is useful that it can be done.
【図1】本考案の焼却灰溶融処理設備の一実施例を示し
たガス系路図。FIG. 1 is a gas system route diagram showing an embodiment of the incineration ash melting processing equipment of the present invention.
【図2】本考案の焼却灰溶融処理設備の他の実施例を示
したガス系路図。FIG. 2 is a gas system diagram showing another embodiment of the incineration ash melting treatment equipment of the present invention.
1 溶融炉 2 電極棒 4 焼却灰 5 溶融物 7 排ガス排出口 8 空気吹込口 9 給気管 10 給気ファン 11 炉内空間 12 排ガスファン 16 熱交換器 18 ヒータ 1 Melting furnace 2 Electrode rod 4 Incineration ash 5 Melt 7 Exhaust gas outlet 8 Air inlet 9 Air supply pipe 10 Air supply fan 11 Furnace space 12 Exhaust gas fan 16 Heat exchanger 18 Heater
Claims (2)
融炉において、500℃以上に予熱した空気を炉内に吹
込むことにより炉内で発生した可燃性ガスを燃焼させる
ようにしたことを特徴とする焼却灰溶融処理設備。[Claim 1] A melting furnace for melting incinerated ash etc. by arc heating, characterized in that combustible gas generated in the furnace is combusted by blowing air preheated to 500°C or higher into the furnace. Incineration ash melting processing equipment.
融炉において、排ガス排出路に熱交換器を設け、該熱交
換器によって予熱した空気を炉内に吹込むことにより炉
内で発生した可燃性ガスを燃焼させるようにしたことを
特徴とする焼却灰溶融処理設備。Claim 2: In a melting furnace that melts incinerated ash, etc. by arc heating, a heat exchanger is provided in the exhaust gas discharge path, and air preheated by the heat exchanger is blown into the furnace to reduce the combustible material generated in the furnace. Incineration ash melting processing equipment characterized by being designed to combust toxic gas.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2949591U JPH04122929U (en) | 1991-04-01 | 1991-04-01 | Incineration ash melting processing equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2949591U JPH04122929U (en) | 1991-04-01 | 1991-04-01 | Incineration ash melting processing equipment |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH04122929U true JPH04122929U (en) | 1992-11-05 |
Family
ID=31913346
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2949591U Pending JPH04122929U (en) | 1991-04-01 | 1991-04-01 | Incineration ash melting processing equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH04122929U (en) |
-
1991
- 1991-04-01 JP JP2949591U patent/JPH04122929U/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN1759941B (en) | New type heating and fusing method and equipment for dealing with flying ash generated by burning garbage | |
JPH0363408A (en) | Method of burning exhaust smoke | |
JP2634320B2 (en) | Sludge incineration method using a single-stage incinerator with post-combustion and heat recovery after gas scrubber | |
KR890004291B1 (en) | Method and apparatus for reclaiming metals from metallic scrap material | |
JP3271476B2 (en) | Melting method of incinerated fly ash | |
US4601750A (en) | Scrap melting system | |
JP3956862B2 (en) | Combustion control method for waste incinerator and waste incinerator | |
KR100348746B1 (en) | Waste treatment apparatus | |
JPH04122929U (en) | Incineration ash melting processing equipment | |
JP3623751B2 (en) | Vertical waste incineration facility equipped with ash melting device and its operation method | |
TW538217B (en) | Method and equipment for treating exhaust gas | |
JP2008275180A (en) | Waste melting treatment method and equipment | |
JPS62182516A (en) | Burning method for fluidized bed type incinerator | |
JP2002089813A (en) | Waste gas processing method for ash melting furnace and its apparatus | |
JPS6370014A (en) | Combustion-melting furnace of cyclone type for sewage sludge | |
CN110131723A (en) | A kind of dual firing chamber | |
JP2002364836A (en) | Incinerator, and heat exchanger tank and ejector for incinerator | |
JP2793451B2 (en) | How to reduce dioxins in waste incinerators | |
JP2000055340A (en) | Oxygen burner for melting incinerated fly ash | |
JP2004077013A (en) | Operation method of waste incinerator, and waste incinerator | |
JPH0481692B2 (en) | ||
JP3071172B2 (en) | Waste melting equipment | |
JP3858250B2 (en) | Method for melting waste pyrolysis residue or incineration residue containing combustible solid carbon | |
JP2004163009A (en) | Operation method of waste incineration system and waste incineration system | |
JP4337072B2 (en) | Waste melting furnace |