JPS6124278B2 - - Google Patents
Info
- Publication number
- JPS6124278B2 JPS6124278B2 JP54101341A JP10134179A JPS6124278B2 JP S6124278 B2 JPS6124278 B2 JP S6124278B2 JP 54101341 A JP54101341 A JP 54101341A JP 10134179 A JP10134179 A JP 10134179A JP S6124278 B2 JPS6124278 B2 JP S6124278B2
- Authority
- JP
- Japan
- Prior art keywords
- tank
- gas
- coal
- combustion
- combustion chamber
- 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.)
- Expired
Links
- 239000003245 coal Substances 0.000 claims description 18
- 238000002485 combustion reaction Methods 0.000 claims description 16
- 238000013022 venting Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 14
- 239000000567 combustion gas Substances 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 229910001873 dinitrogen Inorganic materials 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 230000002269 spontaneous effect Effects 0.000 description 5
- 230000002265 prevention Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Description
【発明の詳細な説明】
この発明は貯炭槽に関し、特に自然発火防止装
置を備えた気密式貯炭槽に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a coal storage tank, and more particularly to an airtight coal storage tank equipped with a spontaneous ignition prevention device.
一般に石炭を充填させた槽は粉塵飛散、自然発
火等を防止するため密閉構造とすることが望まし
いが、頂部より石炭を装入する際空気が入るので
石炭の酸化は避けられない。石炭が空気中の酸素
と反応し酸化が急進行すると発熱するが、これを
長時間蓄熱状態を続けている間に発火という事態
を引き起すわけである。この自然発火を防止する
ため従来から窒素ガス等の不燃性ガスをサイロ内
に押込み充満させている。しかし貯炭槽は数千m3
程度の大型のものが多く、さらには現在数万m3の
ものも計画されており、これに充満させるために
は多量の窒素ガスが必要である。製鉄所内で比較
的安価で入手できる場合でも量が多いため不経済
であり、まして窒素ガスの購入が必要なところで
は費用が嵩むという欠点がある。 Generally, it is desirable that a tank filled with coal has a sealed structure to prevent dust scattering, spontaneous combustion, etc., but oxidation of the coal is unavoidable because air enters when charging the coal from the top. When coal reacts with oxygen in the air and oxidation progresses rapidly, it generates heat, which can cause a fire if it continues to store heat for a long time. In order to prevent this spontaneous combustion, nonflammable gas such as nitrogen gas has traditionally been forced into the silo to fill it. However, the coal storage tank is several thousand m3
Many of them are about 100,000 square meters in size, and even ones with tens of thousands of cubic meters in size are currently being planned, and a large amount of nitrogen gas is required to fill them. Even if nitrogen gas can be obtained at a relatively low price within a steelworks, it is uneconomical due to the large quantity, and even more so in places where it is necessary to purchase nitrogen gas, it has the drawback of increasing costs.
この発明は、上記欠点の除去を目的としてなさ
れたもので、窒素ガスを使用することなく槽下部
からガス抜き用パイプを介して連続的に槽内ガス
を吸引し、このガスを燃焼室内で燃焼させるとに
より燃焼ガスを発生せしめ、これを槽上部から供
給させるような自然発火防止装置を備えた貯炭槽
を提供するものである。 This invention was made with the aim of eliminating the above-mentioned drawbacks. Gas is continuously sucked from the bottom of the tank through a gas venting pipe without using nitrogen gas, and this gas is combusted in a combustion chamber. The purpose of the present invention is to provide a coal storage tank equipped with a spontaneous ignition prevention device that generates combustion gas by causing combustion gas to be supplied from the top of the tank.
次に図面に基づきこの発明の実施例を説明す
る。 Next, embodiments of the present invention will be described based on the drawings.
図中番号１は、貯炭槽で、一例として直径
15m、高さ30mの円筒形のものを図示している。
槽１は鉄板あるいはコンクリートにより製作され
ている。槽１の側部にはバケツトエレベータ２が
槽１の頂部迄伸びて設けられており、その下部で
コンベア３から石炭を受け上部で供給口４を介し
て槽１内に供給するようになつている。槽１下部
部ホツパー部には石炭取出口５が設けられてお
り、例えばロータリバルブ、或いは電磁振動フイ
ーダにより一定量ずつ排出される。 Number 1 in the figure is a coal storage tank, and as an example, the diameter is
The diagram shows a cylindrical structure measuring 15 m and 30 m in height.
Tank 1 is made of iron plate or concrete. A bucket elevator 2 is provided on the side of the tank 1 and extends to the top of the tank 1, and receives coal from a conveyor 3 at its lower part and supplies it into the tank 1 through a supply port 4 at its upper part. ing. A coal outlet 5 is provided in the hopper section of the lower part of the tank 1, and a fixed amount of coal is discharged by, for example, a rotary valve or an electromagnetic vibration feeder.
槽１下側部はガス排出パイプ６が接続されてお
り、槽内のガスはブロワ７を介して燃焼空気とし
て燃焼室８に供給されている。そして、燃焼室８
内で、固体、液体、ガスの任意の燃焼機９により
燃焼ガスが生成される。燃焼室８の後段には熱交
換器１０が設けられており燃焼ガスは熱交換器１
０により冷却されパイプ１１を経て槽１頂部近傍
に供給される構造となつている。 A gas exhaust pipe 6 is connected to the lower side of the tank 1, and the gas in the tank is supplied to a combustion chamber 8 as combustion air via a blower 7. And combustion chamber 8
Combustion gas is produced therein by an optional combustor 9 of solid, liquid or gas. A heat exchanger 10 is provided downstream of the combustion chamber 8, and the combustion gas is transferred to the heat exchanger 1.
0 and is supplied to the vicinity of the top of the tank 1 via a pipe 11.
次に本発明の作用について説明すると、バケツ
トエレベータ２より槽１内に石炭が供給される。
その際供給石炭に対応する量の槽１内ガスが換気
口（図示せず）を介してサイロ１外に排出され
る。 Next, the operation of the present invention will be explained. Coal is supplied into the tank 1 from the bucket elevator 2.
At this time, gas in the tank 1 in an amount corresponding to the supplied coal is discharged to the outside of the silo 1 through a ventilation port (not shown).
なお、槽１の換気口の内外に圧力検出計を設
け、槽１内外の圧力を略等しいか、あるいは槽１
内圧力を若干高めに保持しておくのが好ましい。 In addition, pressure detectors are installed inside and outside the ventilation port of tank 1, and the pressure inside and outside of tank 1 is approximately equal, or
It is preferable to maintain the internal pressure slightly higher.
石炭が槽１内に充填された後供給口４は閉鎖さ
れる。このとき石炭装入の際に随伴する空気が槽
１内に存在している。 After the coal is filled into the tank 1, the supply port 4 is closed. At this time, air accompanying the coal charging is present in the tank 1.
そこで、槽１下側部からガス排出パイプ６、ブ
ロワ７を介してガスが連続的に燃焼室８に燃焼空
気として供給され、ここで例えばガス燃焼機によ
り燃焼ガスが生成される。この燃焼ガスは熱交換
器１０にて冷却された後槽１の頂部近傍より供給
される。このように燃焼ガスを循環させることに
より槽１内の酸素濃度が低下し、たとえ空気の漏
入が若干あつたとしても自然発火が防止される。
また、熱交換器１０で得られる温水は有効利用を
図ることができる。 Therefore, gas is continuously supplied as combustion air from the lower side of the tank 1 to the combustion chamber 8 via the gas discharge pipe 6 and the blower 7, and combustion gas is generated there by, for example, a gas burner. This combustion gas is cooled in a heat exchanger 10 and then supplied from near the top of the tank 1. By circulating the combustion gas in this manner, the oxygen concentration within the tank 1 is reduced, and even if a small amount of air leaks, spontaneous combustion is prevented.
Moreover, the hot water obtained by the heat exchanger 10 can be used effectively.
この発明は、上記のように構成としたたため少
量のガスを循環させるだけで充分発火防止効果が
期待でき、高価な窒素ガスが不要であるためコス
ト軽減できるという顕著なる効果を奏する。 Since the present invention is constructed as described above, a sufficient ignition prevention effect can be expected just by circulating a small amount of gas, and since expensive nitrogen gas is not required, the present invention has the remarkable effect of being able to reduce costs.
なお、槽内の適所に酸素濃度センサーを配置
し、槽内ガスの酸素濃度が所定の危険値以下にな
れば自動的に燃焼機の運転を休止させ、所定値以
上になれば運転再開させる手段をとるか、また、
槽内ガスの酸素濃度が低下し、燃焼空気として不
適当になつた場合は系外から燃焼空気を取り入れ
るとかの手段を講ずることができる。 In addition, an oxygen concentration sensor is placed at a suitable location in the tank, and the combustion machine is automatically stopped when the oxygen concentration of the gas in the tank falls below a predetermined dangerous value, and resumes operation when it exceeds a predetermined value. Or,
If the oxygen concentration of the gas in the tank decreases and it becomes unsuitable for use as combustion air, it is possible to take measures such as taking in combustion air from outside the system.
さらに、上記実施例は陸上サイロ型の例を示し
ているが、本発明は貯炭船にも適用されることは
云うまでもない。 Further, although the above embodiment shows an example of a land-based silo type, it goes without saying that the present invention is also applicable to a coal storage ship.
図は、この発明の一実施例を示す概略図であ
る。
１……槽、７……ブロワ、８……燃焼室、１０
……熱交換器、９……燃焼機。
The figure is a schematic diagram showing an embodiment of the present invention. 1...Tank, 7...Blower, 8...Combustion chamber, 10
...Heat exchanger, 9...Combustor.
Claims (1)
ロワを介して燃焼室に連通させ、該燃焼室と槽上
部とをパイプで連通し、その途中に熱交換器を設
置したことを特徴とする気密式貯炭槽。1. A gas venting pipe is connected to the lower part of the tank and communicated with the combustion chamber via a blower, the combustion chamber and the upper part of the tank are connected by a pipe, and a heat exchanger is installed in the middle. Airtight coal storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10134179A JPS5625612A (en) | 1979-08-10 | 1979-08-10 | Airtight coal bunker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10134179A JPS5625612A (en) | 1979-08-10 | 1979-08-10 | Airtight coal bunker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5625612A JPS5625612A (en) | 1981-03-12 |
| JPS6124278B2 true JPS6124278B2 (en) | 1986-06-10 |
Family
ID=14298130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10134179A Granted JPS5625612A (en) | 1979-08-10 | 1979-08-10 | Airtight coal bunker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5625612A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6248872U (en) * | 1985-09-13 | 1987-03-26 | ||
| JPS62137775U (en) * | 1986-02-20 | 1987-08-31 |
-
1979
- 1979-08-10 JP JP10134179A patent/JPS5625612A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6248872U (en) * | 1985-09-13 | 1987-03-26 | ||
| JPS62137775U (en) * | 1986-02-20 | 1987-08-31 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5625612A (en) | 1981-03-12 |
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