JPS62218325A - Method of conveying granular body in slurry condition - Google Patents
Method of conveying granular body in slurry conditionInfo
- Publication number
- JPS62218325A JPS62218325A JP6277486A JP6277486A JPS62218325A JP S62218325 A JPS62218325 A JP S62218325A JP 6277486 A JP6277486 A JP 6277486A JP 6277486 A JP6277486 A JP 6277486A JP S62218325 A JPS62218325 A JP S62218325A
- Authority
- JP
- Japan
- Prior art keywords
- slurry
- pulverized coal
- tank
- powder
- gas
- 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.)
- Granted
Links
- 239000002002 slurry Substances 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000008187 granular material Substances 0.000 claims description 30
- 239000000843 powder Substances 0.000 claims description 30
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 230000008021 deposition Effects 0.000 claims description 3
- 239000003245 coal Substances 0.000 abstract description 30
- 239000002245 particle Substances 0.000 abstract description 8
- 239000007791 liquid phase Substances 0.000 abstract description 5
- 230000002542 deteriorative effect Effects 0.000 abstract description 4
- 238000007667 floating Methods 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 2
- 239000012071 phase Substances 0.000 abstract description 2
- 239000003250 coal slurry Substances 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000005453 pelletization Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Air Transport Of Granular Materials (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、微粉炭吹込み設備、コークス工場。[Detailed description of the invention] [Industrial application field] The present invention is a pulverized coal injection equipment and a coke factory.
石炭岸壁１石炭ヤード等の石炭１その他の各種鉱石の粉
粒体を扱う設備から発生する微粉炭、粉鉱石等の粉粒体
を作、業環境の劣化なく搬送する方法に関する。′
（従来の技術〕
微粉炭吹込み設備、コークス工場１石炭岸壁。This invention relates to a method for producing and transporting granular materials such as pulverized coal and fine ore generated from equipment handling granular materials of coal 1 and various other ores, such as a coal quay and a coal yard, without deteriorating the working environment. (Prior technology) Pulverized coal injection equipment, coke factory 1 coal quay.
石炭ヤード等の石炭、その他の各種鉱石の粉粒体を扱う
設備から発生する粉粒体等をペレット化したり廃棄処分
する際、粉粒状のままで扱うと、特に微粉末が作業環境
に飛散し、いわゆる二次飛散による環境の悪化が問題と
なる。そこで、従来は、攪拌器で微粉末を水と混和する
か或いは沈降剤による処理等の二次処理を施すことによ
りペースト状とし、二次飛散による環境の悪化を防いで
いた（特開昭６０−７１６９５号公報、特開昭６０−９
４４９７号公報等参照）。When pelletizing or disposing of powder and granules generated from equipment that handles coal and other various ore powders in coal yards, etc., if they are handled in the form of granules, especially fine powders may be scattered into the work environment. , environmental deterioration due to so-called secondary scattering becomes a problem. Therefore, in the past, fine powder was mixed with water using a stirrer or subjected to secondary treatment such as treatment with a precipitant to form a paste, thereby preventing environmental deterioration due to secondary scattering (Japanese Patent Laid-Open No. 1983-1993). -71695 Publication, JP-A-60-9
(See Publication No. 4497, etc.).
しかし、このような二次処理は本来の生産工程に益する
ものではない。また、その二次処理で使用される水、沈
降剤等の薬液の後処理が更に必要となるため、できれば
この二次処理を省いた簡単な工程により粉粒体を処理す
ることが望まれていた。However, such secondary processing does not benefit the original production process. In addition, post-treatment of chemicals such as water and sedimentation agents used in the secondary treatment is required, so it is desirable to treat powder and granular materials using a simple process that eliminates this secondary treatment if possible. Ta.
本発明は、この要望に応えるべく開発されたものであり
、格別の二次処理を必要とせずに、しかも作業環境を悪
化させることなく、粉粒体を取り扱うことを目的とする
。The present invention was developed in response to this demand, and aims to handle powder and granular materials without requiring special secondary treatment and without deteriorating the working environment.
本発明の粉粒体のスラリー化搬送方法は、その目的を達
成すべく、各種設備から排出された粉粒体を回収するに
際し、真空ポンプにより粉粒体堆積場所に堆積した粉粒
体をスラリータンクに吸引する気流搬送経路の途中で、
該粉粒体を含有する搬送気流に水を注入し、該水注入に
より粉粒体をスラリー化させながら搬送して前記スラリ
ータンクに貯え、該スラリータンクからスラリー化した
ままの粉粒体を適時取り出すことを特徴とする。In order to achieve the purpose of the slurry transportation method of powder and granular material of the present invention, when collecting powder and granular material discharged from various equipment, the powder and granular material deposited at the powder and granular material deposition site is slurried by a vacuum pump. In the middle of the airflow conveyance path sucking into the tank,
Water is injected into the conveying air flow containing the powder and granules, the powder and granules are conveyed while being turned into a slurry by the water injection, and stored in the slurry tank, and the powder and granules remain in the slurry form from the slurry tank at an appropriate time. The feature is that it can be taken out.
本発明方法においては、前記のようにスラリータンクを
介して真空ポンプにより粉粒体を吸引している。このた
め、濃度に関係なく粉粒体を吸引することができる。ま
た、湿式状態で真空ポンプが運転されるので、スラリー
タンクから排出される浮遊粒子は真空ポンプ内で水と混
和され二次スラリーとなり、外部に放散されることがな
い。In the method of the present invention, the granular material is sucked through the slurry tank by a vacuum pump as described above. Therefore, powder and granular material can be sucked regardless of its concentration. Furthermore, since the vacuum pump is operated in a wet state, suspended particles discharged from the slurry tank are mixed with water within the vacuum pump to form a secondary slurry, and are not dispersed to the outside.
次いで、図面に示した実施例により、本発明の特徴を具
体的に説明する。Next, features of the present invention will be specifically explained with reference to embodiments shown in the drawings.
図は、本発明方法のフロー例を示すものである。The figure shows an example flow of the method of the invention.
たとえば、製鉄所の各種工程で発生した微粉炭ｌは、適
宜の個所に堆積されている。この堆積された微粉炭１は
、吸引管２内を気流搬送されて、スラリータンク３に送
られる。この吸引管２の途中には、水を圧送する給水管
６が接続されている。For example, pulverized coal generated in various processes at a steel mill is deposited at appropriate locations. The deposited pulverized coal 1 is carried by airflow through the suction pipe 2 and sent to the slurry tank 3. A water supply pipe 6 for feeding water under pressure is connected in the middle of this suction pipe 2.
気流搬送されている微粉炭に水を吹き付けると、浮遊し
ている微粉炭粒子は、その吹き付けられた水により捕捉
され気相から液相に移行する。すなわち、微粉炭粒子は
、スラリーとなって、スラリータンク３に蓄えられる。When water is sprayed onto the pulverized coal that is being carried by air current, the floating pulverized coal particles are captured by the sprayed water and transition from the gas phase to the liquid phase. That is, the pulverized coal particles become slurry and are stored in the slurry tank 3.
このとき、吸引管２を介して気液混合流をスラリータン
ク３内に吹き込む吹込み口３．よりスラリータンク３内
の衝突板４に気液混合物を衝突させ、依然として圧送気
流に残っていた微粉炭の粒子が完全に液相に移行する。At this time, the air-liquid mixed flow is blown into the slurry tank 3 through the suction pipe 2 through the blowing port 3. The gas-liquid mixture is caused to collide with the collision plate 4 in the slurry tank 3, and the pulverized coal particles that still remained in the pumped air flow are completely transferred to the liquid phase.
このようにして、微粉炭粒子が取り除かれた気流は、真
空ポンプ７により排気管８を介して系外に排出される。The airflow from which the pulverized coal particles have been removed in this manner is discharged to the outside of the system via the exhaust pipe 8 by the vacuum pump 7.
この排気管８は、前記のスラリータンク３内の水位より
高い位２３．でスラリータンク３に取り付けられている
。なお、該排ガス中に微粒子が含まれていることが懸念
されるような場合には、排気管８の途中に集塵機を付設
するとよい。This exhaust pipe 8 is located at a level 23. higher than the water level in the slurry tank 3. is attached to slurry tank 3. Note that if there is a concern that the exhaust gas contains particulates, a dust collector may be installed in the middle of the exhaust pipe 8.
他方、搬送気流から分離されて液相に移行した微粉炭は
、スラリータンク３に蓄えられ、その底部にある取出し
口３ｃから所定範囲３４〜３．で逐次取り出され、スラ
リー排出ポンプ９によりスラリーピット１０に送られる
。スラリーピット１０では、微粉炭粒子が再分離するこ
となくスラリー状のまま集積される。この集積された微
粉炭スラリー１１を適宜取り出し、ペレット化等の後工
程１２に送る。On the other hand, the pulverized coal that has been separated from the carrier airflow and transferred to the liquid phase is stored in the slurry tank 3, and is delivered to a predetermined range 34 to 3 from the outlet 3c at the bottom of the tank. The slurry is taken out one by one and sent to a slurry pit 10 by a slurry discharge pump 9. In the slurry pit 10, the pulverized coal particles are accumulated in a slurry state without being separated again. This accumulated pulverized coal slurry 11 is appropriately taken out and sent to a post-process 12 such as pelletization.
この集積された微粉炭スラリー１１は、後工程１２に送
る過程及び後工程１２におけるハンドリング時に飛散す
ることはない。This accumulated pulverized coal slurry 11 is not scattered during the process of sending it to the post-process 12 and during handling in the post-process 12.
ここで、具体的な操業条件を示す。定格電力が２７．１
に−の真空ポンプを１＋５００ ｒ、ｐ、ｍ、で駆動し
、配管サイズが直径５０ｍ■の吸引管２を介して微粉炭
を吸引した。このとき、吸引管２内に発生した真空圧は
一４２０龍１１ｇであり、風ｆｆ１２２．２ｆｆｒ／ｗ
ｉｎで微粉炭が吸引された。このような真空系を用いる
とき、計算上２．０００ｋｇ／ｈｒまで処理することが
可能である。Here, specific operating conditions will be shown. Rated power is 27.1
A vacuum pump was driven at 1+500 r, p, m, and pulverized coal was sucked through a suction pipe 2 with a diameter of 50 m. At this time, the vacuum pressure generated in the suction tube 2 is 1420 dragons 11 g, and the wind ff is 122.2 ffr/w.
Pulverized coal was suctioned in the in. When using such a vacuum system, it is possible to process at a rate of up to 2.000 kg/hr.
この気流搬送されている微粉炭に対して注入される水の
世を種々変えてみて、そのときの混合割合を調べた。そ
の結果を、第２図に示す。なお、ここでいう混合率１０
０χとは、排気管８から排出される排ガスに浮遊する粉
粒体が目視によって検出されない状態をいう、すなわち
、水ｈｔ７０ｊ！／ｌｌｌ１ｎで水を注入すれば、排ガ
スに浮遊粉塵がなくなることを第２図は示している。We varied the amount of water injected into the pulverized coal being transported by air current, and investigated the mixing ratio at that time. The results are shown in FIG. In addition, the mixing ratio here is 10
0χ refers to a state in which powder particles floating in the exhaust gas discharged from the exhaust pipe 8 are not visually detected, that is, water ht70j! Figure 2 shows that if water is injected at /lll1n, there will be no suspended dust in the exhaust gas.
なお本実施例では微粉炭を処理対象にしているが、他の
鉱石粉を処理対象とすることもできる。In this embodiment, pulverized coal is treated, but other ore powders can also be treated.
Ｃ発明の効果〕
以上に説明したように、本発明においては、気流搬送し
ている微粉炭等の粉粒体の流れに直接水を注入すること
によりスラリー化した粉粒体を、搬送の対象としている
。したがって、各設備から排出された粉粒体を目的とす
る場所に移送するときに、粉粒体の飛散に起因する作業
環境の悪化が生じない。また、このスラリー化は、粉粒
体をスラリータンクに移送する吸引管の内部で行われる
ので、配管内の水の撹拌力が利用でき、別途攪拌器を必
要とすることもない。また、一旦スラリー化した粉粒体
は、水分離せず、スラリーピット内で安定して維持され
る。このようにして、粉粒体堆積場所に堆積した粉粒体
を簡単な掻作によりスラリーピットから取り扱いの容易
なスラリーとして搬出することができるようになったこ
とは、種々の分野で多大の利益を産み出すものである。C. Effects of the Invention] As explained above, in the present invention, the granular material, which is made into a slurry by directly injecting water into the flow of the granular material such as pulverized coal, which is being transported by air current, is It is said that Therefore, when the powder and granules discharged from each piece of equipment are transferred to the target location, the working environment is not deteriorated due to scattering of the powder and granules. Furthermore, since this slurry formation is performed inside the suction pipe that transfers the powder to the slurry tank, the stirring power of the water in the pipe can be used, and a separate stirrer is not required. Moreover, once the powder and granular material has been turned into a slurry, the water does not separate and is stably maintained within the slurry pit. In this way, it has become possible to transport the powder and granules accumulated at the powder and granule deposition site from the slurry pit by simple scraping as an easy-to-handle slurry, which brings great benefits in various fields. It is something that produces.
第１図は本発明実施例のフローを示し、第２図はその実
施例における微粉炭の混合率を示す。
特許出願人 新日本製鐵 株式会社（ほか１名）FIG. 1 shows the flow of an embodiment of the present invention, and FIG. 2 shows the mixing ratio of pulverized coal in the embodiment. Patent applicant: Nippon Steel Corporation (and 1 other person)
Claims (1)
真空ポンプにより粉粒体堆積場所に堆積した粉粒体をス
ラリータンクに吸引する気流搬送経路の途中で、該粉粒
体を含有する搬送気流に水を注入し、該水注入により粉
粒体をスラリー化させながら搬送して前記スラリータン
クに貯え、該スラリータンクからスラリー化したままの
粉粒体を適時取り出すことを特徴とする粉粒体のスラリ
ー化搬送方法。1. When collecting powder and granules discharged from various equipment,
Water is injected into the conveying air flow containing the powder and granules in the middle of the air flow conveyance path where the powder and granules deposited at the powder and granule deposition site are sucked into the slurry tank by a vacuum pump, and the powder and granules are removed by the water injection. A method for slurrying and conveying powder and granular material, characterized in that the powder and granular material is transported while being slurried and stored in the slurry tank, and the powder and granular material that remains slurry is taken out from the slurry tank in a timely manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6277486A JPS62218325A (en) | 1986-03-19 | 1986-03-19 | Method of conveying granular body in slurry condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6277486A JPS62218325A (en) | 1986-03-19 | 1986-03-19 | Method of conveying granular body in slurry condition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62218325A true JPS62218325A (en) | 1987-09-25 |
| JPH0371329B2 JPH0371329B2 (en) | 1991-11-12 |
Family
ID=13210055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6277486A Granted JPS62218325A (en) | 1986-03-19 | 1986-03-19 | Method of conveying granular body in slurry condition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62218325A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01159628U (en) * | 1988-04-25 | 1989-11-06 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS567943A (en) * | 1979-06-30 | 1981-01-27 | Matsushita Electric Works Ltd | Foot warmer in floor |
-
1986
- 1986-03-19 JP JP6277486A patent/JPS62218325A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS567943A (en) * | 1979-06-30 | 1981-01-27 | Matsushita Electric Works Ltd | Foot warmer in floor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01159628U (en) * | 1988-04-25 | 1989-11-06 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0371329B2 (en) | 1991-11-12 |
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