JP4109381B2 - Scraper conveyor for waste granulated granulated material - Google Patents
Scraper conveyor for waste granulated granulated material Download PDFInfo
- Publication number
- JP4109381B2 JP4109381B2 JP12255499A JP12255499A JP4109381B2 JP 4109381 B2 JP4109381 B2 JP 4109381B2 JP 12255499 A JP12255499 A JP 12255499A JP 12255499 A JP12255499 A JP 12255499A JP 4109381 B2 JP4109381 B2 JP 4109381B2
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- Prior art keywords
- granulated
- chain
- scraper conveyor
- waste
- scraper
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- 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.)
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Description
【０００１】
【発明の属する技術分野】
本発明は、一般廃棄物、産業廃棄物等の廃棄物をシャフト炉式熱分解溶融炉で熱分解溶融処埋し、溶融物を水砕処理して得られた水砕処理物を搬送する、廃棄物溶融炉の水砕処理物用スクレーパコンベヤに関する。
【０００２】
【従来の技術】
一般廃棄物、各種産業廃棄物等の廃棄物の処理方法として、一例として廃棄物をコークスや石灰石等の副原料と共に廃棄物溶融炉に投入し、炉内で、乾燥・予熱、熱分解、燃焼・溶融し、廃棄物溶融炉から排出される溶融物をスラグやメタルとして取り出す廃棄物溶融処理技術が知られている。
【０００３】
廃棄物溶融炉から排出される溶融物は水砕水槽内へ流下しで水砕され、スラグと金属からなる水砕処理物は水砕処理物用スクレーパコンベヤにより掻き上げられて水砕水槽から取り出される（例えば、特開平１０−７３２３０号公報参照）。
【０００４】
図４は従来の廃棄物溶融炉に付帯する水砕水槽の概略図で、廃棄物溶融炉１から排出される溶融物２を水砕水槽３に導入して水砕処理する。得られた水砕処理物は、モーター４により移動する水砕処理物用スクレーパコンベヤ５により掻き上げられて水砕水槽３から取り出される。
【０００５】
【発明が解決しようとする課題】
しかしながら、従来の水砕処理物用スクレーパコンベヤのリターン側では、チェーンの伸びに起因するチェーンの遊びが発生してチェーンの張力がなくなり、スクレーパが蛇行し、ガイドレールから外れて脱線したり、あるいはスクレーパ端面と水砕水槽の側壁との摩耗が発生したりする。
【０００６】
さらに、ガイドレールとスクレーパ又はチェーンとは摺動しているため、摩擦が大きく、大きなチェーン張力を必要とするので、チェーンの伸びが助長されて、チェーンの張力がなくなり、スクレーパの蛇行あるいは脱線が起こりやすくなる。
【０００７】
また、微粒子状の水砕処理物がガイドレール上に付着し、研磨剤として作用するため、接触面の摩耗が早く進行するという問題もある。
【０００８】
そこで、本発明は、水砕処理物用スクレーパコンベヤのリターン側でのチェーンの張力を確保してチェーンの遊びを吸収し、リターン側スクレーパの蛇行による摩擦、脱線を防止するとともに、スクレーパ又はチェーンの接触面を少なくし、摩擦を減少させた、廃棄物溶融炉の水砕処理物用スクレーパコンベヤを提供するものである。
【０００９】
【課題を解決するための手段】
本発明の廃棄物溶融炉の水砕処理物用スクレーパコンベヤは、一般廃棄物、産業廃棄物等の廃棄物を廃棄物溶融炉で熱分解溶融処埋して排出された溶融物を水砕水槽で水砕処理し、得られた水砕処理物を水砕水槽から掻き上げるスクレーパの切り込みにチェーンが連結された水砕処理物用スクレーパコンベヤにおいて、水砕水槽の両側壁のスクレーパコンベヤのリターン側に、水砕処理物用スクレーパコンベヤの移動方向に回転可能な車輪が間隔をおいて複数配置され、前記車輪に形成された溝に前記チェーンのリンクが入り込んでチェーンのみが支持され、前記チェーンは車輪間でチェーンの自重によりカテナリー曲線が形成されて張力の作用により緊張されてチェーンの伸びによる遊びが吸収されていることを特徴とする。
【００１０】
前記車輪には、スクレーパを連結したチェーンを支持する溝を形成することができる。
【００１１】
【発明の実施の形態】
図１は本発明の水砕処理物用スクレーパコンベヤの全体図である。水砕処理物用スクレーパコンベヤ５のリターン側には、水砕水槽３の両側壁にそれぞれ間隔をおいて水砕処理物用スクレーパコンベヤ５の進行方向に回転可能な車輪１０が複数配置され、車輪１０上にスクレーパ（図示せず）を連結したチェーン８が支持される。
【００１２】
図２は車輪にチェーンを支持した状態を示す縦断面図、図３は同側面図である。チェーン８はスクレーパ９の切り込み１１に連結されている。車輪１０には溝１２が形成され、チェーン８のみが支持されて移動する。
【００１３】
本発明の水砕処理物用スクレーパコンベヤ５は、モーター４の回転により車輪１０に支持されて移動し、スクレーパ９は水砕水槽３の底の水砕処理物を掻き集めながら移動し、水砕処理物を水砕水槽３から掻き出す。
【００１４】
本発明においては、リターン側チェーンを水砕水槽３の両側壁６に配置された車輪１０列で受けることにより、車輪１０の間でチェーン自重によりカテナリー曲線を形成し、チェーン８に張力が働く。そのため、チェーン伸びによるチェーンの遊びがなくなり、チェーン８の蛇行、脱線を防止することができる。
【００１５】
また、車輪１０は、溝１２を形成しているので、チェーン８のリンクが車輪１０の溝１２に入り込んで、チェーン８の蛇行を防止することができる。
【００１６】
また、リターン側チェーンを車輪１０で受けることにより、従来のガイドレールに比べて接触面が少なくなり、摩擦が減少し、スクレーパとの間の摩耗が減少する。
【００１７】
【発明の効果】
本発明では、リターン側チェーンを車輪で支持しチェーンの自重によりチェーンを緊張するので、チェーンの伸びにより生じるリターン側チェーンの遊びを吸収することができ、チェーンに張力を作用させることにより伸びに起因する脱線を防止することができる。
【００１８】
また、本発明では、リターン側チェーンを車輪で受けることにより、接触面が少なくなり、摩擦が減少するので、摩耗が減少する。また、チェーンの伸びを減少させることができる。
【図面の簡単な説明】
【図１】 本発明の水砕処理物用スクレーパコンベヤの全体図である。
【図２】 本発明の車輪にチェーンを支持した状態を示す縦断面図である。
【図３】 本発明の車輪にチェーンを支持した状態を示す側面図である。
【図４】 従来の廃棄物溶融炉に付帯する水砕水槽の概略図である。
【符号の説明】
１：廃棄物溶融炉
２：溶融物
３：水砕水槽
４：モーター
５：水砕処理物用スクレーパコンベヤ
６：側壁
７：ガイドレール
８：チェーン
９：スクレーパ
１０：車輪
１１：切り込み
１２：溝[0001]
BACKGROUND OF THE INVENTION
In the present invention, wastes such as general waste and industrial waste are pyrolyzed and melted in a shaft furnace type pyrolysis melting furnace, and the granulated material obtained by subjecting the melt to water granulation is conveyed. The present invention relates to a scraper conveyor for a granulated material of a waste melting furnace.
[0002]
[Prior art]
As an example of waste disposal methods such as general waste and various industrial wastes, waste is introduced into a waste melting furnace together with auxiliary materials such as coke and limestone, and drying / preheating, pyrolysis, combustion in the furnace -Waste melting treatment technology that melts and discharges the molten material discharged from the waste melting furnace as slag or metal is known.
[0003]
The molten product discharged from the waste melting furnace flows down into the granulated water tank and is granulated, and the granulated material consisting of slag and metal is scraped up by the scraper conveyor for the granulated material and taken out from the granulated water tank. (See, for example, JP-A-10-73230).
[0004]
FIG. 4 is a schematic view of a granulated water tank attached to a conventional waste melting furnace, in which the melt 2 discharged from the waste melting furnace 1 is introduced into the granulated
[0005]
[Problems to be solved by the invention]
However, on the return side of the conventional granulated scraper conveyor, chain play caused by chain elongation occurs, the chain tension disappears, the scraper snakes, derails away from the guide rail, or Wear of the scraper end face and the side wall of the granulated water tank may occur.
[0006]
Furthermore, since the guide rail and the scraper or chain slide, the friction is large and a large chain tension is required. It tends to happen.
[0007]
In addition, since the finely pulverized granulated material adheres on the guide rail and acts as an abrasive, there is also a problem that the wear of the contact surface proceeds quickly.
[0008]
Therefore, the present invention secures the chain tension on the return side of the scraper conveyor for the granulated material to absorb chain play, prevents friction and derailment due to meandering of the return side scraper, and The present invention provides a scraper conveyor for a granulated material of a waste melting furnace with reduced contact surface and reduced friction.
[0009]
[Means for Solving the Problems]
The scraper conveyor for the granulated material of the waste melting furnace of the present invention is a granulated water tank for the waste discharged by pyrolyzing and melting waste such as general waste and industrial waste in the waste melting furnace. In the scraper conveyor for a granulated product , the chain is connected to the scraper notch that scrapes the resulting granulated product from the granulated water tank, on the return side of the scraper conveyor on both sides of the granulated water tank In addition, a plurality of wheels that are rotatable in the moving direction of the scraper conveyor for the granulated material are disposed at intervals, and only the chain is supported by the link of the chain entering a groove formed in the wheel. A catenary curve is formed between the wheels by the weight of the chain and is tensioned by the action of tension to absorb play due to chain elongation .
[0010]
The wheel may be formed with a groove that supports a chain connected to a scraper.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is an overall view of a scraper conveyor for a granulated material of the present invention. On the return side of the granulated
[0012]
FIG. 2 is a longitudinal sectional view showing a state in which a chain is supported on a wheel, and FIG. 3 is a side view thereof. The
[0013]
The
[0014]
In the present invention, the return side chain is received by the rows of
[0015]
Further, since the
[0016]
Further, by receiving the return side chain with the
[0017]
【The invention's effect】
In the present invention, the return side chain is supported by the wheel and the chain is tensioned by the weight of the chain. Therefore, the play of the return side chain caused by the chain elongation can be absorbed, and the tension is applied to the chain to cause the elongation. Derailment can be prevented.
[0018]
Further, in the present invention, since the return side chain is received by the wheel, the contact surface is reduced and the friction is reduced, so that wear is reduced. In addition, chain elongation can be reduced.
[Brief description of the drawings]
FIG. 1 is an overall view of a scraper conveyor for a granulated product of the present invention.
FIG. 2 is a longitudinal sectional view showing a state in which a chain is supported on a wheel of the present invention.
FIG. 3 is a side view showing a state in which a chain is supported on a wheel of the present invention.
FIG. 4 is a schematic view of a granulated water tank attached to a conventional waste melting furnace.
[Explanation of symbols]
1: Waste melting furnace 2: Melt 3: Granulated water tank 4: Motor 5: Scraper conveyor for granulated material 6: Side wall 7: Guide rail 8: Chain 9: Scraper 10: Wheel 11: Cut 12: Groove
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12255499A JP4109381B2 (en) | 1999-04-28 | 1999-04-28 | Scraper conveyor for waste granulated granulated material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12255499A JP4109381B2 (en) | 1999-04-28 | 1999-04-28 | Scraper conveyor for waste granulated granulated material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000314520A JP2000314520A (en) | 2000-11-14 |
| JP4109381B2 true JP4109381B2 (en) | 2008-07-02 |
Family
ID=14838767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12255499A Expired - Fee Related JP4109381B2 (en) | 1999-04-28 | 1999-04-28 | Scraper conveyor for waste granulated granulated material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4109381B2 (en) |
-
1999
- 1999-04-28 JP JP12255499A patent/JP4109381B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000314520A (en) | 2000-11-14 |
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