JP2005164095A - Smoking exhaust gas utilizing method - Google Patents

Smoking exhaust gas utilizing method Download PDF

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JP2005164095A
JP2005164095A JP2003401872A JP2003401872A JP2005164095A JP 2005164095 A JP2005164095 A JP 2005164095A JP 2003401872 A JP2003401872 A JP 2003401872A JP 2003401872 A JP2003401872 A JP 2003401872A JP 2005164095 A JP2005164095 A JP 2005164095A
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exhaust gas
hatching
heat exchanger
heat
burner
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Yasuhiro Shinoda
泰宏 篠田
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SHINODAYA KK
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SHINODAYA KK
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

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  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a smoking exhaust gas utilizing method for effectively utilizing combustible gas components and heat energy of smoking exhaust gas. <P>SOLUTION: The smoking exhaust gas generated from a smoking zone 3 passes through a first heat exchanger 7 and a second heat exchanger 8 continuously provided for heat exchange with air to remove heat therefrom. The smoking exhaust gas cooled by heat removal is guided via a gas pipe 14 to a burner 11 of a preheating body 1 or a burner 20 of a firing body 2 and used as burner fuel. Otherwise, it is mixed with fuel gas such as LPG and used as burner fuel. First hot air generated in the first heat exchanger 7 is guided to an air inlet 9 of a preheating zone 1 to preheat a non-fired ceramic ware. Second hot air generated in the second heat exchanger is guided to the burners 11, 20 and used as burner combustion air to heat the ceramic ware. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、燻し瓦や燻しタイルなどの燻し製品を製造するに際して燻化工程から排出される燻化排ガスの利用方法に関するものである。   The present invention relates to a method of using hatching exhaust gas discharged from a hatching process when manufacturing a hatched product such as tiled tile and tiled tile.

燻し瓦や燻しタイルなどの燻し製品を製造するに際して、予熱、焼成された陶磁器を燻すための燻化工程からは燻化排ガスが排出される。この燻化排ガスは従来は大気に放出処分されてきた。例えば、特許文献１には燻化排ガス中のススを燃焼除去した後に大気へ放出する燻瓦製造装置が開示されている。すなわち、この製造装置は空気分離式のＮ2 ガス発生装置から吐出されるＯ2 リッチなガスを再燃焼炉に導き、燻化排ガス中のススを燃焼させて除去した後に大気へ放出するものである。
特開平６−４２８８３号公報 (図１) When producing glazed products such as glazed tiles and glazed tiles, hatching exhaust gas is discharged from the hatching process for burning pre-heated and baked ceramics. This hatching exhaust gas has been conventionally released to the atmosphere. For example, Patent Document 1 discloses a roof tile manufacturing apparatus that burns and removes soot in hatching exhaust gas and then releases it to the atmosphere. That is, this manufacturing apparatus is a device that guides O 2 rich gas discharged from an air separation type N 2 gas generator to a recombustion furnace, burns and removes soot in the hatching exhaust gas, and then releases it to the atmosphere. is there.
Japanese Patent Laid-Open No. 6-42883 (FIG. 1)

しかし、燻化排ガスは陶磁器の加熱に有効な可燃性ガス成分を含むとともに、かなりの高温であって熱エネルギーを有している。このような有利な特徴を有する燻化排ガスを大気に放出処分することは、有効な資源、エネルギーを無駄に消散することとなって、今日の省資源、省エネルギー、ひいては地球環境保護の流れに逆行するものである。したがって、燻化工程から排出された燻化排ガスを有効に利用することが望まれている。   However, hatching exhaust gas contains a combustible gas component effective for heating ceramics, and has a considerably high temperature and thermal energy. Disposing and disposing of the hatching exhaust gas having such advantageous characteristics to the atmosphere will dissipate the effective resources and energy, and will go against the current trend of resource saving, energy saving, and global environmental protection. To do. Therefore, it is desired to effectively use the hatching exhaust gas discharged from the hatching process.

本発明は上記した従来の問題点を解決して、燻化排ガスの持つ可燃性ガス成分と熱エネルギーとを有効に利用するための燻化排ガスの利用方法を提供するためになされたものである。   The present invention has been made to solve the above-mentioned conventional problems and provide a method for using the hatched exhaust gas for effectively using the combustible gas component and the thermal energy of the hatched exhaust gas. .

上記の課題を解決するためになされた本発明の燻化排ガスの利用方法は、陶磁器の燻化工程から排出された燻化排ガスを、陶磁器加熱用のバーナー燃料として用いることを特徴とするものである。なお、燻化排ガスを熱交換器に導いて抜熱し、この抜熱された燻化排ガスをバーナー燃料として用いることができる。この発明において、熱交換器は連設された第１熱交換器および第２熱交換器とからなり、エアとの熱交換により燻化排ガスの抜熱を行うことができる、また、第１熱交換器にて燻化排ガスとの熱交換により生成された第１温エアを陶磁器の予熱に用いるとともに、第２熱交換器にて燻化排ガスとの熱交換により生成された第２温エアをバーナー燃焼用エアとして用いることができる。また、燻化排ガスを散水洗浄装置に導いてススを除去した後に、熱交換器に導くことができる。   The method of using the hatching exhaust gas of the present invention made to solve the above problems is characterized in that the hatching exhaust gas discharged from the pottery hatching process is used as a burner fuel for heating the pottery. is there. It is to be noted that the hatched exhaust gas can be led to a heat exchanger to remove the heat, and the removed hatched exhaust gas can be used as a burner fuel. In the present invention, the heat exchanger includes a first heat exchanger and a second heat exchanger that are connected to each other, and can remove heat from the hatched exhaust gas by heat exchange with air. The first warm air generated by the heat exchange with the hatching exhaust gas in the exchanger is used for preheating the ceramics, and the second warm air generated by the heat exchange with the hatching exhaust gas in the second heat exchanger is used. It can be used as burner combustion air. In addition, the hatched exhaust gas can be guided to a watering and cleaning device, and soot can be removed, and then guided to a heat exchanger.

本発明の燻化排ガスの利用方法は、燻化排ガスを陶磁器加熱用のバーナー燃料として用いるので、燻化排ガスの持つ可燃性ガス成分を有効に利用することができる。燻化排ガスを熱交換器に導いて抜熱し冷却することによって安全に燻化排ガスをバーナー燃料として用いることができる。熱交換器を連設された第１熱交換器および第２熱交換器とからなるものとして、エアと熱交換することによって、燻化排ガスの抜熱、冷却を確実に行うことができる。   In the method of using the hatching exhaust gas of the present invention, the hatching exhaust gas is used as a burner fuel for heating ceramics, so that the combustible gas component of the hatching exhaust gas can be effectively used. The hatched exhaust gas can be safely used as a burner fuel by introducing the hatched exhaust gas to a heat exchanger to extract and cool it. Assuming that the heat exchanger is composed of a first heat exchanger and a second heat exchanger that are connected in series, heat exchange with air can be performed to reliably remove and cool the hatched exhaust gas.

また、第１熱交換器にて生成された第１温エアを陶磁器の予熱に用いるとともに、第２熱交換器にて生成された第２温エアをバーナー燃焼用エアとして用いることによって、燻化排ガスの持つ熱エネルギーを有効に利用することができる。さらに、燻化排ガス中のススの含有量が高い場合には、燻化排ガスを散水洗浄装置に導いてススを除去して清浄化することによってクリーンなバーナー燃料として用いることができる。   In addition, the first warm air generated in the first heat exchanger is used for preheating the ceramics, and the second warm air generated in the second heat exchanger is used as burner combustion air, thereby hatching. The thermal energy of the exhaust gas can be used effectively. Furthermore, when the content of soot in the hatching exhaust gas is high, the hatched exhaust gas can be used as a clean burner fuel by introducing the hatching exhaust gas to a water spray cleaning device to remove soot and purify it.

以下に図面を参照しつつ本発明の好ましい実施形態を説明する。
図１は本発明方法を実施するための燻化製品製造装置を示す概略構成図であって、１０は燻化窯であり、この燻化窯１０は、連続する予熱帯１と焼成帯２と燻化帯３とにより構成されている。台車などにより予熱帯１内に搬入された未焼成の陶磁器は、焼成帯２から流入する炉内ガスにより予熱される。所定温度に予熱された陶磁器は、バーナー４により高温状態に維持された焼成帯２に移送されて焼成される。 Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic configuration diagram showing a hatched product manufacturing apparatus for carrying out the method of the present invention, wherein 10 is a hatching kiln, and this hatching kiln 10 includes a continuous pretropical zone 1, a firing zone 2, It is constituted by the hatching zone 3. The unfired ceramics brought into the pre-tropical zone 1 by a cart or the like is preheated by the furnace gas flowing from the firing zone 2. The ceramics preheated to a predetermined temperature are transferred to the firing zone 2 maintained at a high temperature by the burner 4 and fired.

所定の焼成工程を終えた陶磁器は、燻化帯３に移送される。密閉された燻化帯３には、燻化ガスが燻化ガス導入口５から送り込まれて陶磁器は燻化される。燻化ガスとして、ＬＰＧやＬＮＧなどの燃料ガスがＮ２、ＣＯ２、ＧＸガスなどの不活性ガスにより希釈されたものなどが用いられる。加熱された陶磁器に燻化ガスが接触することにより、炭素を主成分とする銀色の炭素膜が素地表面に形成されて燻し製品ができあがる。そして、燻化済みの製品は緩やかに所定温度にまで冷却された後に外部に搬出される。 After the predetermined firing process, the ceramics are transferred to the hatching zone 3. The hatching gas is fed into the sealed hatching zone 3 from the hatching gas inlet 5 and the ceramic is hatched. As the incubating gas, a gas obtained by diluting a fuel gas such as LPG or LNG with an inert gas such as N 2 , CO 2 , or GX gas is used. When the hatching gas comes into contact with the heated ceramic, a silver-colored carbon film mainly composed of carbon is formed on the surface of the substrate, and a finished product is completed. The hatched product is slowly cooled to a predetermined temperature and then carried outside.

燻化帯３においては陶磁器を燻し済みの燻化排ガスが発生する。この燻化排ガスはＣＨ４、Ｈ２、Ｎ２、ＣＯ２などからなり、燃焼に有効な可燃性ガス成分を含んでいるが、８００〜１０００℃程度の高温であってそのまま陶磁器加熱用のバーナー燃料として用いることはできない。そこで、連設された第１熱交換器７及び第２熱交換器８を通過させてエアと熱交換し抜熱して燻化排ガスを冷却させる。２回の熱交換により燻化排ガスを確実に冷却することができる。抜熱された燻化排ガスはガス配管１４を経由させてＬＰＧなどの燃料ガスと混合してバーナー燃料として用いることができる。或いは図２に示すように燃料ガスと混合することなく直接予熱体１のバーナー１１、或いは焼成体２のバーナー２０にまで導いてバーナー燃料として用いる。燻化排ガスは冷却されているので安全にバーナー燃料として利用することができる。 In the hatching zone 3, hatching exhaust gas that has been glazed with ceramics is generated. This hatching exhaust gas is composed of CH 4 , H 2 , N 2 , CO 2 and the like, and contains combustible gas components effective for combustion. However, it is a high temperature of about 800-1000 ° C. It cannot be used as fuel. Therefore, the hatched exhaust gas is cooled by passing through the first heat exchanger 7 and the second heat exchanger 8 that are continuously provided, exchanging heat with air, and removing heat. The hatched exhaust gas can be reliably cooled by heat exchange twice. The heat-extracted hatching exhaust gas can be mixed with a fuel gas such as LPG via the gas pipe 14 and used as a burner fuel. Alternatively, as shown in FIG. 2, the fuel is introduced directly to the burner 11 of the preheating body 1 or the burner 20 of the fired body 2 without being mixed with the fuel gas and used as the burner fuel. Since the hatched exhaust gas is cooled, it can be safely used as a burner fuel.

前記したように燻化排ガスは先ず第１熱交換器７に導かれて、圧送されてきたエアと熱交換される。エアは高温の燻化排ガスとの熱交換により加熱されて２００〜３００℃程度の第１温エアとなる。この第１温エアはエア配管１２を経由させて予熱帯１のエア導入口９に導いて、陶磁器の予熱に使用する。したがって、陶磁器の予熱を省エネルギーにて行うことができる。   As described above, the hatched exhaust gas is first guided to the first heat exchanger 7 and exchanges heat with the pressure-fed air. The air is heated by heat exchange with high-temperature hatching exhaust gas to become first warm air of about 200 to 300 ° C. This first warm air is guided to the air inlet 9 of the pre-tropical zone 1 via the air pipe 12 and used for preheating the ceramic. Therefore, preheating of the ceramic can be performed with energy saving.

第１熱交換器７を通過後の燻化排ガスは、さらに第２熱交換器８に導かれて圧送されてきたエアと熱交換される。エアは燻化排ガスとの熱交換により加熱されて２００℃未満の第２温エアとなる。この第２温エアをエア配管１３を経由させてバーナー４、１１、２０に導き、バーナー燃焼用エアとして用いる。したがって、燃料ガスを効率的に燃焼させることができる。   The hatched exhaust gas after passing through the first heat exchanger 7 is further heat-exchanged with the air that has been guided to the second heat exchanger 8 and pumped. The air is heated by heat exchange with the hatching exhaust gas and becomes second warm air of less than 200 ° C. This second warm air is guided to the burners 4, 11 and 20 through the air pipe 13, and used as burner combustion air. Therefore, fuel gas can be burned efficiently.

燻化排ガスがスス含有量の低いクリーンなものである場合には、上記のように直接第１熱交換器７に導くことができる。しかし、燻化排ガスのスス含有量が高い場合には、これを燃料ガスとして用いると大量のススが発生して環境を汚染することとなる。そこで、図３に示すように散水洗浄装置６を通過させて燻化排ガスからススを除去した後に、第１熱交換器７に導く。散水洗浄装置６におけるシャワーによって燻化排ガスからススを分離してクリーンなものとすることができる。   When the hatching exhaust gas is clean with low soot content, it can be directly led to the first heat exchanger 7 as described above. However, when the soot content of the hatching exhaust gas is high, if this is used as a fuel gas, a large amount of soot is generated and the environment is polluted. Therefore, as shown in FIG. 3, after passing the sprinkling cleaning device 6 to remove the soot from the hatched exhaust gas, the water is guided to the first heat exchanger 7. The soot can be separated from the hatched exhaust gas by a shower in the sprinkler cleaning device 6 to be clean.

以上に説明したように、燻化排ガスをバーナー燃料として用いたり、第１温エアを陶磁器の予熱や、第２温エアをバーナーの燃焼に用いることによって、陶磁器の加熱を省資源、省エネルギーにて行うことができる。
したがって、本発明は燻化排ガスの持つ可燃性ガス成分と熱エネルギーとを有効に利用することができるものとして、大きな利点を有する。 As explained above, by using hatching exhaust gas as burner fuel, using 1st warm air for preheating ceramics, and 2nd warm air for burning burners, heating of ceramics can be done with less resources and energy. It can be carried out.
Therefore, this invention has a big advantage as what can utilize the combustible gas component and thermal energy which hatching waste gas has effectively.

本発明を実施するための燻化製品製造装置の概略を示す構成図である。It is a block diagram which shows the outline of the hatched product manufacturing apparatus for implementing this invention. 燻化排ガスを直接予熱帯、焼成帯で燃焼させる方式の燻化製品製造装置の概略を示す構成図である。It is a block diagram which shows the outline of the hatching product manufacturing apparatus of the system which burns hatching exhaust gas directly in a pre-tropical zone and a baking zone. 散水洗浄装置を備えた燻化製品製造装置の概略を示す構成図である。It is a block diagram which shows the outline of the hatching product manufacturing apparatus provided with the sprinkling washing apparatus.

符号の説明Explanation of symbols

１ 予熱帯
２ 焼成帯
３ 燻化帯
４ バーナー
５ 燻化ガス導入口
６ 散水洗浄装置
７ 第１熱交換器
８ 第２熱交換器
９ エア導入口
１０ 燻化窯
１１ バーナー
１２ 第１温エアのエア配管
１３ 第２温エアのエア配管
１４ ガス配管
２０ バーナー DESCRIPTION OF SYMBOLS 1 Pre-tropical zone 2 Firing zone 3 Hatching zone 4 Burner 5 Hatching gas inlet 6 Sprinkling washing device 7 1st heat exchanger 8 2nd heat exchanger 9 Air inlet 10 Hatching kiln 11 Burner 12 First warm air Air piping 13 Air piping for second warm air 14 Gas piping 20 Burner

Claims (5)

陶磁器の燻化工程から排出された燻化排ガスを、陶磁器加熱用のバーナー燃料として用いることを特徴とする燻化排ガスの利用方法。   A method for using hatching exhaust gas, characterized in that the hatching exhaust gas discharged from the pottery hatching process is used as a burner fuel for heating ceramics. 燻化排ガスを熱交換器に導いて抜熱し、この抜熱された燻化排ガスをバーナー燃料として用いる請求項１に記載の燻化排ガスの利用方法。   The method for using an hatched exhaust gas according to claim 1, wherein the hatched exhaust gas is led to a heat exchanger to remove heat, and the extracted hatched exhaust gas is used as a burner fuel. 熱交換器は連設された第１熱交換器および第２熱交換器とからなり、エアとの熱交換により燻化排ガスの抜熱を行う請求項２に記載の燻化排ガスの利用方法。   The method for using hatching exhaust gas according to claim 2, wherein the heat exchanger includes a first heat exchanger and a second heat exchanger that are connected in series, and heat removal from the hatching exhaust gas is performed by heat exchange with air. 第１熱交換器にて燻化排ガスとの熱交換により生成された第１温エアを陶磁器の予熱に用いるとともに、第２熱交換器にて燻化排ガスとの熱交換により生成された第２温エアをバーナー燃焼用エアとして用いる請求項３に記載の燻化排ガスの利用方法。   The first warm air generated by heat exchange with the hatching exhaust gas in the first heat exchanger is used for preheating the ceramics, and the second heat exchanger is generated by heat exchange with the hatching exhaust gas in the second heat exchanger. The utilization method of the hatching exhaust gas of Claim 3 which uses warm air as air for burner combustion. 燻化排ガスを散水洗浄装置に導いてススを除去した後に、熱交換器に導く請求項２に記載の燻化排ガスの利用方法。
The method for using hatching exhaust gas according to claim 2, wherein the hatching exhaust gas is guided to a watering and cleaning apparatus, soot is removed, and then introduced to a heat exchanger.
JP2003401872A 2003-12-01 2003-12-01 Smoking exhaust gas utilizing method Pending JP2005164095A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105588437A (en) * 2016-03-09 2016-05-18 浙江尚鼎工业炉有限公司 Industrial furnace capable of achieving rapid temperature rise
CN105605919A (en) * 2016-03-09 2016-05-25 浙江尚鼎工业炉有限公司 Efficient heating furnace

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105588437A (en) * 2016-03-09 2016-05-18 浙江尚鼎工业炉有限公司 Industrial furnace capable of achieving rapid temperature rise
CN105605919A (en) * 2016-03-09 2016-05-25 浙江尚鼎工业炉有限公司 Efficient heating furnace
CN105605919B (en) * 2016-03-09 2017-09-12 浙江尚鼎工业炉有限公司 A kind of efficient heating stove
CN105588437B (en) * 2016-03-09 2017-12-01 浙江尚鼎工业炉有限公司 A kind of industrial furnace being rapidly heated

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