JPH045870Y2 - - Google Patents
Info
- Publication number
- JPH045870Y2 JPH045870Y2 JP1986153239U JP15323986U JPH045870Y2 JP H045870 Y2 JPH045870 Y2 JP H045870Y2 JP 1986153239 U JP1986153239 U JP 1986153239U JP 15323986 U JP15323986 U JP 15323986U JP H045870 Y2 JPH045870 Y2 JP H045870Y2
- Authority
- JP
- Japan
- Prior art keywords
- ash
- conveyor
- dust collector
- water
- tank
- 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
- 239000002956 ash Substances 0.000 claims description 59
- 239000010882 bottom ash Substances 0.000 claims description 30
- 239000000428 dust Substances 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 239000010881 fly ash Substances 0.000 claims description 20
- 238000002485 combustion reaction Methods 0.000 claims description 13
- 239000000567 combustion gas Substances 0.000 claims description 7
- 239000003245 coal Substances 0.000 description 5
- 238000011084 recovery Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
Landscapes
- Incineration Of Waste (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は中小容量の微粉炭だきボイラの灰処理
装置に関するものである。[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to an ash processing device for small to medium capacity pulverized coal fired boilers.
従来、微粉炭だきボイラは大容量ボイラに使用
されており、その灰処理設備は第３図ａ，ｂに示
す如く、燃焼室底部に落下する炉底灰回収設備と
燃焼ガス中の飛散灰回収設備の独立した二系統の
回収設備からなつている。
Conventionally, pulverized coal-fired boilers have been used in large-capacity boilers, and their ash processing equipment includes equipment for recovering bottom ash that falls to the bottom of the combustion chamber and recovery of fly ash in the combustion gas, as shown in Figure 3a and b. It consists of two independent systems of collection equipment.
即ち、第３図ａにおいて、燃焼室１で微粉炭が
燃焼して発生した飛散灰を含む燃焼ガスは蒸発管
２を経由し、空気予熱器３で更に熱交換し集塵器
４を経て煙突２４から大気に放出される。 That is, in Fig. 3a, combustion gas containing fly ash generated by combustion of pulverized coal in the combustion chamber 1 passes through the evaporator tube 2, further heat exchanges in the air preheater 3, passes through the dust collector 4, and is sent to the chimney. 24 to the atmosphere.
集塵器４では燃焼ガス中の飛散灰が捕集され、
集塵器下部のホツパ２０に落下し、ホツパ２０下
部に装備したロータリバルブ２１で切出されて水
平コンベア５に落下し、この水平コンベア５に連
係したバケツトコンベア６により飛散灰サイロ７
に送り出されて乾燥したまま蓄積される。 The dust collector 4 collects fly ash in the combustion gas,
The dust falls into the hopper 20 at the bottom of the dust collector, is cut out by the rotary valve 21 installed at the bottom of the hopper 20, falls onto the horizontal conveyor 5, and is transported to the fly ash silo 7 by the bucket conveyor 6 connected to the horizontal conveyor 5.
and stored dry.
こうして、飛散灰サイロ７に蓄積された飛散灰
を排出する時は、サイロ下部の切出装置で定量づ
つを切り出し、灰加湿機８で灰が飛散しない程度
に加湿して灰回収車１０によつて搬出される。 In this way, when discharging the fly ash accumulated in the fly ash silo 7, a fixed amount is cut out using the cutting device at the bottom of the silo, humidified with the ash humidifier 8 to the extent that the ash does not scatter, and then transported to the ash collection vehicle 10. It will be carried out.
なお、図中９はブリツジ防止送風機である。 In addition, 9 in the figure is a bridge prevention blower.
一方、第３図ｂにおいて、燃焼室１底部には水
没式スクレーパーコンベア１２を装備した水槽式
の炉底灰捕集装置１１が設けてあり、燃焼室底部
に落下する炉底灰をスクレーパーコンベア１２で
スクレープして搬送コンベア１３に送り出し、水
を含んだまま炉底灰サイロ１５に蓄積される。 On the other hand, in FIG. 3b, a water tank-type furnace bottom ash collection device 11 equipped with a submerged scraper conveyor 12 is provided at the bottom of the combustion chamber 1, and the furnace bottom ash falling to the bottom of the combustion chamber is collected by the scraper conveyor 12. The ash is scraped and sent to the conveyor 13, where it is accumulated in the bottom ash silo 15 while still containing water.
こうして、炉底灰サイロ１５に蓄積された炉底
灰は灰回収車１０により搬出される。搬出された
灰はセメント骨材などに一部使用され場合もある
が大半は加湿状態で投棄される。 In this way, the hearth ash accumulated in the hearth ash silo 15 is carried out by the ash recovery vehicle 10. Some of the ash carried out is sometimes used as cement aggregate, but most of it is dumped in a humidified state.
なお、搬送コンベア１３によつて移送される間
に灰から出てきた水は沈澱槽１４に戻される。 Note that the water that comes out of the ashes while being transferred by the conveyor 13 is returned to the settling tank 14.
また、炉底灰サイロ１５に蓄積された炉底灰か
ら出る水はサイロ下部の排水管１６を介して前記
沈澱槽１４に導かれ、沈澱槽１４の水は水中ポン
プ１７によつて前記捕集装置１１に循環する。１
９は水の補給管である。 Water discharged from the bottom ash accumulated in the bottom ash silo 15 is led to the sedimentation tank 14 via the drain pipe 16 at the bottom of the silo, and the water in the sedimentation tank 14 is collected by the submersible pump 17. Circulate to device 11. 1
9 is a water supply pipe.
上記するように、従来の大容量ボイラの灰処理
装置は二系統の設備になつているので、そのまま
中小容量のボイラに適用するには機器が多く広い
スペースが必要であり、それだけ価格が高くなる
という問題がある。
As mentioned above, conventional ash processing equipment for large-capacity boilers is a two-system facility, so applying it to small- to medium-sized boilers requires a lot of equipment and a large space, which increases the price accordingly. There is a problem.
また、二系統の灰処理のうちの片方は水抜きを
必要とし、他の一方は灰の加湿が必要であり灰の
収集処理に二通りの相反する処理が必要であると
いう問題がある。 Furthermore, one of the two systems of ash processing requires water drainage, and the other system requires humidification of the ash, resulting in the problem that two contradictory processes are required for the ash collection process.
更に、飛散灰サイロ、炉底灰サイロの何れにお
いても、蓄積された灰を回収車（トラツク）に載
せる場合、回収車の待ち時間を少なくするため短
時間で灰を抜き出す必要があり、そのための抜き
出し装置、灰加湿機の容量を大きくすることが要
求されるという問題がある。 Furthermore, in both fly ash silos and bottom ash silos, when loading the accumulated ash onto a collection vehicle (truck), it is necessary to remove the ash in a short time to reduce the waiting time for the collection vehicle. There is a problem in that the capacity of the extraction device and the ash humidifier must be increased.
本考案は上記の点に鑑みなされたものであつ
て、微粉炭だきボイラにおける灰の処理を簡単に
した灰処理装置を提供することを目的とする。 The present invention has been made in view of the above points, and an object of the present invention is to provide an ash processing device that facilitates the processing of ash in a pulverized coal boiler.
上記の目的を達成するためのこの考案の要旨と
するところは、ボイラの燃焼室底部に設けた水槽
式炉底灰捕集装置と、燃焼ガス中に飛散灰を捕集
する集塵器とを有するボイラにおいて、前記炉底
灰捕集装置に設けたスクレーパコンベアを搬送コ
ンベアに連係し、該スクレーパコンベアと搬送コ
ンベアとの連係部に前記集塵器の排出口を連係す
るとともに、集塵器の排出口から搬送コンベアに
至る経路に集塵器から排出される飛散灰を加湿混
練する灰加湿機を設け、搬送コンベアの排出口部
に可搬式灰溜槽を配装したことを特徴とする微粉
炭だきボイラの灰処理装置にある。
The gist of this invention to achieve the above purpose is to use a water tank-type furnace bottom ash collection device installed at the bottom of the combustion chamber of the boiler, and a dust collector to collect fly ash in the combustion gas. In the boiler, a scraper conveyor provided in the bottom ash collection device is linked to a transfer conveyor, and an outlet of the dust collector is linked to a linking portion between the scraper conveyor and the transfer conveyor, and a A pulverized coal characterized in that an ash humidifier for humidifying and kneading fly ash discharged from a dust collector is provided in the path from the discharge port to the conveyor, and a portable ash storage tank is provided at the discharge port of the conveyor. Located in the ash processing equipment of the boiler.
炉底灰捕集装置に落下する炉底灰はスクレーパ
コンベアによつて水を含んだまま搬送コンベアに
送り出される。別途集塵器で捕集された乾燥した
飛散灰は、灰加湿機によつて加湿混練して最適な
湿潤状態で搬送コンベアに導かれて炉底灰と一緒
になつて搬送コンベアの排出口部に配装した可搬
式灰溜槽に収集され、灰溜槽毎回収車によつて搬
出される。
The bottom ash falling into the bottom ash collection device is sent to a conveyor while containing water by a scraper conveyor. The dry fly ash collected by a separate dust collector is humidified and kneaded by an ash humidifier, and then guided to the conveyor in an optimally moist state, where it is combined with the furnace bottom ash and transported to the discharge outlet of the conveyor. The ash is collected in a portable ash tank installed in the ash tank, and each ash tank is transported by a collection vehicle.
（実施例） 次に本考案を実施例により説明する。(Example) Next, the present invention will be explained with reference to examples.
第１図は本考案の装置の概略全体構成図であ
る。 FIG. 1 is a schematic overall configuration diagram of the apparatus of the present invention.
第１図はおいて第３図ａ，ｂと共通の部分は同
一符号を付けている。 Parts in FIG. 1 that are common to FIGS. 3a and 3b are given the same reference numerals.
図において、燃焼室１底部に設けた水槽式炉底
灰収集装置１１のスクレーパコンベア１２と搬送
コンベア１３を灰加湿機８を介して連係し、灰加
湿機８に対して集塵器４下部のホツパ２０の排出
口をロータリバルブ２１等の切出装置を介して連
係している。 In the figure, a scraper conveyor 12 and a conveyor 13 of a water tank-type bottom ash collecting device 11 installed at the bottom of a combustion chamber 1 are connected via an ash humidifier 8, and a The discharge port of the hopper 20 is linked via a cutting device such as a rotary valve 21.
なお、炉底灰捕集装置１１には燃焼室１の下端
部が水に浸かる程度に水が溜められ、この水は補
給管１９を介して補給される。炉底灰捕集装置１
１からのオーバーフロー水は沈澱槽１４に導か
れ、この沈澱槽１４の水は水中ポンプ１７によつ
て炉底灰捕集装置１１に循環する。 Incidentally, water is stored in the bottom ash collecting device 11 to the extent that the lower end of the combustion chamber 1 is submerged in water, and this water is replenished via a replenishment pipe 19. Hearth ash collection device 1
The overflow water from 1 is led to a settling tank 14, and the water in this settling tank 14 is circulated to the bottom ash collector 11 by a submersible pump 17.
上記構成において、燃焼室１で微粉炭が燃焼し
て発生した灰のうち、炉底灰収集装置１１に落下
した炉底灰はスクレーパコンベア１２でスクレー
プして灰加湿機８に送り出される。 In the above configuration, among the ash generated by combustion of pulverized coal in the combustion chamber 1, the bottom ash that falls into the bottom ash collection device 11 is scraped by the scraper conveyor 12 and sent to the ash humidifier 8.
一方、一部の灰は飛散灰として燃焼ガスに含ま
れ、この飛散灰を含む燃焼ガスは蒸発管２を加熱
し、更に空気予熱器３で熱交換したあと、飛散灰
は集塵器４で捕集されて排ガスは煙突２４から大
気に放出される。 On the other hand, some ash is included in the combustion gas as fly ash, and the combustion gas containing this fly ash heats the evaporator tube 2 and further heat exchanges with the air preheater 3, and then the fly ash is passed through the dust collector 4. The collected exhaust gas is released into the atmosphere from the chimney 24.
集塵器４で捕集された飛散灰は集塵器４下部の
ホツパ２０に溜められ、ロータリバルブ２１で切
り出されて灰加湿機８に導かれて前記炉底灰回収
装置１１からの炉底灰と共に適当に加湿混練され
て搬送コンベア１３に送り出されて搬送コンベア
１３の排出口部に配装した可搬式灰溜槽１８に排
出収集される。 The fly ash collected by the dust collector 4 is stored in a hopper 20 at the bottom of the dust collector 4, and is cut out by a rotary valve 21 and led to an ash humidifier 8, where it is collected from the bottom of the furnace from the bottom ash recovery device 11. The ash is suitably humidified and kneaded together with the ash, sent to the transport conveyor 13, and discharged and collected in a portable ash tank 18 disposed at the discharge port of the transport conveyor 13.
なお、集塵器４からのロータリバルブ２１によ
る飛散灰の切出しは連続又は間欠的に行われる。 Note that the fly ash is removed from the dust collector 4 by the rotary valve 21 continuously or intermittently.
また、スクレーパコンベア１２の搬送端部には
灰の塊を砕くクラツシヤを設けることもある。 Further, a crusher for crushing lumps of ash may be provided at the conveying end of the scraper conveyor 12.
炉底灰回収装置１１および集塵器４下部のホツ
パ２０には灰の適当量を溜めておくことができる
ので装置の運転は間欠的に行うこともできる。 Since an appropriate amount of ash can be stored in the bottom ash recovery device 11 and the hopper 20 at the bottom of the dust collector 4, the device can be operated intermittently.
第２図ａは他の実施例を示す灰処理部分の側面
図、第２図ｂは第２図ａにおけるＢ−Ｂ線矢視平
面図である。 FIG. 2a is a side view of an ash processing portion showing another embodiment, and FIG. 2b is a plan view taken along the line B--B in FIG. 2a.
この実施例では、燃焼室１底部に設けた水槽式
炉底灰収集装置１１のスクレーパコンベア１２と
搬送コンベア１３を直接的に連係し、集塵器４下
部のホツパ２０の排出口部に灰加湿機８を設けて
この灰加湿機８の排出口をスクレーパコンベア１
２と搬送コンベア１３との連係部に連係してい
る。 In this embodiment, the scraper conveyor 12 and transfer conveyor 13 of the water tank type bottom ash collection device 11 provided at the bottom of the combustion chamber 1 are directly linked, and the ash is humidified at the discharge port of the hopper 20 at the bottom of the dust collector 4. A machine 8 is provided, and the discharge port of this ash humidifier 8 is connected to the scraper conveyor 1.
2 and the transport conveyor 13.
なお、灰加湿機８には加湿水管２２を介して加
湿用水が供給される。 Note that humidifying water is supplied to the ash humidifier 8 via a humidifying water pipe 22.
上記構成において、炉底灰収集装置１１に落下
した炉底灰はスクレーパコンベア１２とスクレー
プして直接に搬送コンベア１３に送り出される。
一方、集塵器４で捕集された飛散灰は集塵器４下
部のホツパ２０から灰加湿機８に導かれてここで
加湿混練されて搬送コンベア１２に送り出されて
炉底灰と一緒にされ、該搬送コンベア１３の搬送
後半部下に、第２図ｂに示すように開けた三角形
状の開口２３から可搬式灰溜槽１８に均等に排出
落下して収集される。 In the above configuration, the bottom ash that has fallen into the bottom ash collection device 11 is scraped with the scraper conveyor 12 and sent directly to the conveyor 13.
On the other hand, the fly ash collected by the dust collector 4 is guided from the hopper 20 at the bottom of the dust collector 4 to the ash humidifier 8, where it is humidified and kneaded, and sent to the conveyor 12, where it is mixed with bottom ash. The ash is evenly discharged and dropped into the portable ash tank 18 through the triangular opening 23 opened under the latter half of the conveyor 13 as shown in FIG. 2b, and is collected.
本考案は上記するように、炉底灰および飛散灰
を炉底灰収集装置および集塵器によつて回収し、
この二種類の灰を一緒にして搬送コンベアから可
搬式灰溜槽に排出収集するようにしたので、炉底
灰の脱水系統が不要になり、加湿用補給水が少な
くてすみ、従来の装置における飛散灰サイロ、炉
底灰サイロを不用にするなど、設備が合理化さ
れ、更に直接に可搬式灰溜槽に灰を収集するの
で、トラツク輸送の待ち時間がなくなるなどの効
果があり、殊に中小規模の微粉炭だきボイラの環
境、敷地、価格面で大きく改善できるものであ
る。
As described above, the present invention collects bottom ash and fly ash using a bottom ash collection device and a dust collector,
Since these two types of ash are discharged and collected together from the transport conveyor into a portable ash storage tank, there is no need for a dehydration system for the bottom ash, and less make-up water is needed for humidification. Equipment is streamlined by eliminating the need for ash silos and bottom ash silos, and ash is collected directly into a portable ash storage tank, which has the effect of eliminating waiting time for truck transportation, especially for small and medium-sized enterprises. This can greatly improve the environment, site, and price of pulverized coal-fired boilers.
第１図は本考案の装置の概略全体構成図、第２
図ａは他の実施例を示す灰処理部分の側面図、第
２図ｂは第２図ａにおけるＢ−Ｂ線矢視平面図、
第３図ａ，ｂは従来の装置の概略全体構成図であ
る。
１……燃焼室、２……蒸発管、３……空気予熱
器、４……集塵器、５……水平コンベア、６……
バケツトコンベア、７……飛散灰サイロ、８……
灰加湿機、９……ブリツジ防止送風機、１０……
灰回収トラツク、１１……炉底灰収集装置、１２
……水没式スクレーパコンベア、１３……搬送コ
ンベア、１４……沈澱槽、１５……炉底灰サイ
ロ、１６……排水管、１７……水中ポンプ、１８
……可搬式灰溜槽、１９……補給水管、２０……
ホツパ、２１……ロータリバルブ、２２……加湿
水管、２３……開口、２４……煙突。
Figure 1 is a schematic overall configuration diagram of the device of the present invention, Figure 2
Figure a is a side view of the ash processing part showing another embodiment, Figure 2 b is a plan view taken along line B-B in Figure 2 a,
FIGS. 3a and 3b are schematic overall configuration diagrams of a conventional device. 1... Combustion chamber, 2... Evaporation tube, 3... Air preheater, 4... Dust collector, 5... Horizontal conveyor, 6...
Bucket conveyor, 7...Fly ash silo, 8...
Ash humidifier, 9...Bridge prevention blower, 10...
Ash collection truck, 11... Bottom ash collection device, 12
... Submerged scraper conveyor, 13 ... Transport conveyor, 14 ... Sedimentation tank, 15 ... Hearth ash silo, 16 ... Drain pipe, 17 ... Submersible pump, 18
...Portable ash tank, 19...Supplementary water pipe, 20...
Hopper, 21...rotary valve, 22...humidifying water pipe, 23...opening, 24...chimney.
Claims (1)
装置と、燃焼ガス中の飛散灰を捕集する集塵器と
を有するボイラにおいて、前記炉底灰捕集装置に
設けたスクレーパコンベアを搬送コンベアに連係
し、該スクレーパコンベアと搬送コンベアとの連
係部に前記集塵器の排出口を連係するとともに、
集塵器の排出口から搬送コンベアに至る経路に集
塵器から排出される飛散灰を加湿混練する灰加湿
機を設け、搬送コンベアの排出口部に可搬式灰溜
槽を配装したことを特徴とする微粉炭だきボイラ
の灰処理装置。 In a boiler having a water tank type bottom ash collection device provided at the bottom of the combustion chamber of the boiler and a dust collector for collecting fly ash in combustion gas, a scraper conveyor provided in the bottom ash collection device is provided. The dust collector is connected to a conveyor, and the discharge port of the dust collector is connected to a connecting portion between the scraper conveyor and the conveyor.
An ash humidifier that humidifies and kneads the fly ash discharged from the dust collector is installed on the path from the dust collector outlet to the conveyor, and a portable ash tank is installed at the outlet of the conveyor. Ash processing equipment for pulverized coal-fired boilers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986153239U JPH045870Y2 (en) | 1986-10-06 | 1986-10-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986153239U JPH045870Y2 (en) | 1986-10-06 | 1986-10-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6361627U JPS6361627U (en) | 1988-04-23 |
| JPH045870Y2 true JPH045870Y2 (en) | 1992-02-19 |
Family
ID=31071944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986153239U Expired JPH045870Y2 (en) | 1986-10-06 | 1986-10-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH045870Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01272474A (en) * | 1988-04-26 | 1989-10-31 | Seiko Epson Corp | Automatic paper feed mechanism |
| JP6777804B1 (en) * | 2019-11-22 | 2020-10-28 | 三菱パワー株式会社 | Boiler internal inspection method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6251511A (en) * | 1985-08-29 | 1987-03-06 | Mitsubishi Heavy Ind Ltd | Pipe conveying method for different grain size solid substance-mixed slurry |
-
1986
- 1986-10-06 JP JP1986153239U patent/JPH045870Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6251511A (en) * | 1985-08-29 | 1987-03-06 | Mitsubishi Heavy Ind Ltd | Pipe conveying method for different grain size solid substance-mixed slurry |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6361627U (en) | 1988-04-23 |
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